CN108661842B

CN108661842B - Hydraulic working device, hydraulic impeller thereof, hydraulic spraying device and working head

Info

Publication number: CN108661842B
Application number: CN201810770646.6A
Authority: CN
Inventors: 胡建华
Original assignee: Shanghai Zhancai Intelligent Technology Co ltd
Current assignee: Shanghai Zhancai Intelligent Technology Co ltd
Priority date: 2018-07-13
Filing date: 2018-07-13
Publication date: 2024-07-26
Anticipated expiration: 2038-07-13
Also published as: CN108661842A

Abstract

The invention provides a hydraulic working device, a hydraulic impeller thereof, a hydraulic spraying device and a working head. The hydraulic impeller is provided with a plurality of tooth blades with specific angles, so that the hydraulic energy can be effectively utilized, and the water flow resistance is reduced. The shell of the hydraulic spraying device is provided with a first cavity which is basically anhydrous and a second cavity which is basically full of water, and the hydraulic impeller is arranged in the first cavity, so that the rotation resistance of the impeller is small, the water energy can be effectively utilized, the water is further saved, and meanwhile, the water collected in the second cavity can be sprayed out by fully utilizing the water pressure and is used for external cleaning. The working head is provided with a transmission part, and can convert the rotary motion of the hydraulic impeller into reciprocating, knocking, single-point rotation or multi-point rotation and other motion modes to realize the cleaning of objects so as to meet various cleaning requirements. The hydraulic working device comprises a hydraulic spraying device and a working head, the hydraulic spraying device and the working head are matched for use, and when the working head moves to clean, the hydraulic spraying device provides water spraying, so that a better cleaning effect can be achieved, and water conservation is further achieved.

Description

Hydraulic working device, hydraulic impeller thereof, hydraulic spraying device and working head

Technical Field

The invention relates to the technical field of hydraulic application, in particular to a hydraulic working device, a hydraulic impeller, a hydraulic spraying device and a working head thereof.

Background

In the prior art, water can be used as a natural power output source besides being used for traditional household use. The patent application CN2143071Y discloses a water wheel brush, which utilizes the stamping force of water to realize the washing effect, wherein water flow enters the shell through the nozzle to drive the impeller in the shell to rotate, and then is sprayed out from the water outlet, but in the process, the whole shell is filled with water, so that the movement resistance of the impeller is high, and the water energy utilization rate is low. In addition, this hydraulic brush adopts the brush hair as cleaning structure, and easy perk under centrifugal force effect during the in-service use, the cleaning performance is poor.

In addition, another patent application CN206314750U discloses a household hydraulic cleaning bar, which uses tap water to achieve the cleaning effect, but the cleaning bar also has the same problems: the whole shell is full of water flow, so that the motion resistance of the impeller is high, and the water energy utilization rate is low. In addition, the impeller of the household hydraulic cleaning rod is provided with 8 blades, namely, the impeller can only utilize the impact kinetic energy of 8 water flows every time the impeller rotates one circle, and the water energy utilization rate is low. Furthermore, in order to ensure the cleaning effect, the water flushing amount or the water pressure is generally required to be increased to ensure the cleaning capability of the hydraulic cleaning device, so that the waste of water resources is serious.

In addition, the existing hydraulic brush or hydraulic cleaning rod is basically only used for cleaning, and has single purpose.

Therefore, there is a need to develop a highly efficient hydraulic working device, a hydraulic impeller, a hydraulic spraying device and a working head thereof, which have multiple uses, can save water on the premise of ensuring the working effect, and can be used conveniently and comfortably.

Disclosure of Invention

The invention aims to provide a hydraulic working device, a hydraulic impeller, a hydraulic spraying device and a working head thereof, so as to solve the problems of low water energy utilization rate, serious water resource waste, single purpose and the like of the existing hydraulic working device.

In order to solve the technical problems, in one aspect, the present invention provides a hydraulic impeller, including a cylindrical impeller body, wherein a plurality of teeth are uniformly distributed on the outer peripheral surface of the impeller body along the circumferential direction, wherein:

The tooth blade is provided with a first face, a second face and a third face which are arranged in a sharing way; the first surface is matched with the outer peripheral surface of the impeller body; the second surface and the third surface are respectively connected with two opposite sides of the first surface along the circumferential direction; the second surface is a water facing surface and has a first angle relative to the radial direction of the impeller body, and the first angle is 165-195 degrees; the third surface is a back surface and is used for being consistent with the water flow direction.

Optionally, the hydraulic impeller further includes two cover plates coaxially disposed with the impeller body, the tooth blade further has a fourth face and a fifth face disposed in parallel, the fourth face and the fifth face are respectively connected with two opposite sides of the first face along an axial direction, the fourth face and the fifth face are respectively aligned with two ends of the impeller body, and the two cover plates are respectively connected with the fourth face and the fifth face of the plurality of tooth blades.

Optionally, the second face and the third face are perpendicular to the fourth face and the fifth face.

Optionally, the hydraulic impeller further comprises an impeller shaft arranged at the center of the impeller body; at least one end of the impeller shaft is prismatic and penetrates through one cover plate and is used for being connected with an external mechanism, a first combination part used for being connected with the external mechanism is further arranged at one end of the impeller shaft, which is prismatic, and the first combination part is of a chamfering structure consistent with the prismatic.

Optionally, the first angle is 180 °.

Optionally, the thickness of the hydraulic impeller is between 2 and 20mm, the outer radius of the impeller body is between 2 and 200mm, the number of the teeth is 15 to 200, the common edge of the second surface and the third surface is parallel to the axis of the impeller body, and the ratio of the perpendicular distance between the common edge and the outer peripheral surface to the outer radius of the impeller body is between 0.015 and 0.20.

Optionally, the thickness of the hydraulic impeller is 9.0mm or 11.0mm, the outer radius of the impeller body is 25.60mm or 24.15mm, the number of teeth is 37 or 17, and the ratio of the vertical distance to the outer radius of the impeller body is 0.084 or 0.149.

Optionally, the hydraulic impeller is used for rotating under the driving of water flow with preset flow rate and preset flow rate, the preset flow rate is between 0.5 and 6.0m/s, and the preset flow rate is between 0.06 and 35.0L/min.

In another aspect, the invention also provides a hydraulic spray device, comprising a first shell and the hydraulic impeller according to any one of the above; the first shell is divided into a first cavity and a second cavity by a separation part, the first cavity is communicated with the second cavity by a communication channel penetrating through the separation part, and a water inlet communicated with the first cavity is also formed in the first shell; the hydraulic impeller is arranged in the first cavity;

wherein: and the water flow is sent into the first cavity through the water inlet hole so as to drive the hydraulic impeller to rotate, and the water flow after driving the hydraulic impeller to rotate is directly discharged to the second cavity through the communication channel and is further discharged out of the first shell.

Optionally, the first cavity with the intercommunication way separates through first baffle, hydraulic impeller set up in the central authorities of first cavity, the one end of intercommunication passageway through following hydraulic impeller's circumference setting first opening with first cavity intercommunication, the other end through following hydraulic impeller's axial setting second opening with second cavity intercommunication, wherein:

The first baffle is arranged along a part of the periphery of the hydraulic impeller and is used for blocking water flow which is driven to rotate and then continuously flows into the first cavity along the periphery of the hydraulic impeller, and meanwhile, the first baffle is also used for guiding water flow which is driven to rotate and then flows to the connecting channel through the first opening and then enters the second cavity through the second opening.

Optionally, the first cavity and the hydraulic impeller form an annular inner cavity, and a second baffle plate arranged along a part of the periphery of the hydraulic impeller is further arranged in the annular inner cavity; the second baffle is arranged at the tail end of the annular inner cavity along the rotation direction of the hydraulic impeller, and at least one part of the second baffle is positioned between the hydraulic impeller and the first baffle and used for further blocking water flow entering the annular inner cavity without being blocked by the first baffle and guiding the water flow to be discharged out of the first shell.

Optionally, a side of the partition facing the first cavity is a slope surface inclined from the center to the periphery.

Optionally, at least one water drain hole is arranged around the partition part.

Optionally, at least one of the water discharge holes is located at an end of the annular inner cavity along a rotation direction of the hydraulic impeller, and located between the second baffle and the first baffle, and is configured to discharge a water flow flowing into the first cavity out of the first housing.

Optionally, one end of the first baffle is adjacent to the first opening, a third baffle is further disposed at one end of the first baffle adjacent to the first opening, the third baffle is disposed along a radial direction of the hydraulic impeller, one end of the third baffle is connected with the first baffle, and a gap is formed between the other end of the third baffle and an inner wall of the communication channel along the radial direction of the hydraulic impeller.

Optionally, the width of the gap decreases, remains unchanged or increases from the side away from the second cavity to the side close to the second cavity.

Optionally, the third baffle is an arc surface, and/or the third baffle is perpendicular to the partition portion.

Optionally, the first housing further has a first working wall; the first working wall is positioned in the first cavity and covers a part of the periphery of the hydraulic impeller, and one side of the first working wall is adjacent to the water inlet hole and used for guiding water flowing out of the water inlet hole to drive the hydraulic impeller to rotate.

Optionally, the communication channel has a second working wall and/or a third working wall; when the connecting channel is provided with a second working wall, the second working wall is arranged along the circumferential direction of the hydraulic impeller, one end of the second working wall is adjacent to the first working wall through a buffer section, and the buffer section is used for buffering and guiding water flow after the water flow flows out of the hydraulic impeller; when the communication channel is provided with a third working wall, the third working wall is arranged along the axial direction of the hydraulic impeller and is arranged on one side of the communication channel away from the second cavity.

Optionally, the buffer section is a straight line section, a curve section, a straight common section or a mutation section, and is used for buffering the water flow flowing out of the hydraulic impeller.

Optionally, the first working wall is an arc surface concentrically arranged with the hydraulic impeller; when the connecting channel is provided with a second working wall, the second working wall is a spherical surface, and the normal line of the spherical surface points to the second cavity; when the communication channel has a third working wall, at least a portion of the third working wall extends in a spiral manner from the first cavity toward the second cavity.

Optionally, the connecting channel is further provided with a fifth working wall opposite to the third working wall, the fifth working wall is arranged along the axial direction of the hydraulic impeller and is arranged at one side of the connecting channel adjacent to the second cavity, one end of the fifth working wall is connected with the partition part, and a gap extending along the circumferential direction of the hydraulic impeller is further formed at one side of the fifth working wall away from the hydraulic impeller; the gap is communicated with the communication channel and the second cavity and is used for enabling water flow entering the communication channel to flow into the second cavity through the gap.

Optionally, the first cavity and the second cavity are distributed in an axial direction of the hydraulic impeller.

Optionally, the hydraulic impeller includes an impeller shaft disposed at the center of the impeller body, one end of the impeller shaft is connected to one side of the first housing, which is located in the first cavity, through a bearing, and the other end of the impeller shaft passes through the partition and is connected to the partition through another bearing.

Optionally, the first housing is further provided with a plurality of water outlets communicated with the second cavity, and the water outlets are used for discharging water in the second cavity out of the first housing.

Optionally, the first housing is further provided with a penetrating body penetrating the second cavity, two penetrating holes are formed in the penetrating body, one penetrating hole is used for allowing the impeller shaft of the hydraulic impeller to penetrate, and the other penetrating hole is used for forming the water draining hole in the partition portion.

Optionally, the first casing is further provided with two penetrating bodies penetrating the second cavity, one penetrating hole is respectively formed in the two penetrating bodies, one penetrating hole is used for allowing the impeller shaft of the hydraulic impeller to penetrate, and the other penetrating hole is used for forming the water draining hole in the separation part.

Optionally, the first housing further has a fastening seat for fastening an external working head, and the fastening seat is disposed on one side of the second cavity of the first housing.

Optionally, the hydraulic spraying device further comprises a handle connected with the first shell, the handle comprises a hollow channel with two open ends, one end of the hollow channel is connected with the water inlet hole, and the other end of the hollow channel is connected with an external water supply end.

Optionally, the handle is composed of one or more connecting sections, and two ends of each connecting section are provided with mutually matched connecting parts.

Optionally, the connecting portion is a threaded section or a clamping section.

Optionally, the water inlet hole is rectangular, the width of the water inlet hole is between 0.5 and 20mm, the length of the water inlet hole is between 2 and 20mm, and the effective depth of the water inlet hole is between 1.0 and 30 mm.

Optionally, the width of the water inlet hole is 1.81mm, the length of the water inlet hole is 6.88mm, and the effective depth of the water inlet hole is 3.0mm.

In still another aspect, the present invention further provides a working head using the spraying device according to any one of the above, including a working portion and a transmission portion connected to the working portion; the transmission part is used for being connected with the hydraulic impeller and converting the rotation motion of the hydraulic impeller into the motion matched with the working part so as to enable the working part to work through the corresponding motion.

Optionally, the transmission part comprises at least one motion frame, at least one track, a bevel gear and an eccentric shaft; the eccentric shaft is provided with bevel gears and is meshed with the bevel gears; the bevel gear is coaxially connected with the impeller shaft of the hydraulic impeller and is used for converting the rotary motion of the hydraulic impeller into the rotary motion of the eccentric shaft; the eccentric shaft is also provided with at least one eccentric wheel eccentrically arranged with the axis of the eccentric shaft; the moving frame is provided with a rectangular inner frame, at least two opposite edges of the inner frame are circumscribed with the eccentric wheel, and the lengths of the two opposite edges are not less than the sum of the double eccentric distance and the diameter of the eccentric wheel; at least one moving frame is sleeved on one eccentric wheel and used for converting the rotation motion of the eccentric shaft into the reciprocating motion of the moving frame along the axial direction of the impeller shaft; at least one of the motion frames is arranged on one of the rails and is used for reciprocating in the area limited by the rail; the working part is connected with the two moving frames so as to drive the working part to synchronously move with the moving frames.

Optionally, the transmission part comprises an eccentric wheel, a moving frame and a track; the eccentric wheel and the impeller shaft of the hydraulic impeller are eccentrically arranged; the moving frame is provided with a rectangular inner frame, at least two opposite edges of the inner frame are circumscribed with the eccentric wheel, and the lengths of the two opposite edges are not less than the sum of the double eccentric distance and the diameter of the eccentric wheel; the moving frame is sleeved on the eccentric wheel and used for converting the rotation motion of the impeller shaft into the reciprocating motion of the moving frame along the radial direction of the impeller shaft; the moving frame is arranged on the track and used for reciprocating in the area limited by the track; the working part is respectively connected with the moving frame and the eccentric wheel and is used for converting the rotation motion of the hydraulic impeller into the reciprocating motion along the radial direction of the hydraulic impeller and driving the moving frame to reciprocate along the radial direction of the impeller shaft.

Optionally, the transmission part comprises a track, a rotor, a knocking block, two track rings and a fixing part, wherein the track rings are provided with end faces with concave-convex curved surfaces connected end to end, the fixing part is respectively connected with the two track rings and used for fixing the relative positions of the two track rings, the fixing part is arranged on the track and used for reciprocating in an area limited by the track, and a gap is reserved between the two track rings; the rotor is coaxially connected with the impeller shaft of the hydraulic impeller and is used for synchronously rotating with the impeller shaft; the rotor is provided with a bulge, and the bulge is arranged in the gap and is used for converting the rotary motion of the rotor into the reciprocating motion of the knocking block along the axial direction of the impeller shaft through the end faces of the concave-convex curved surfaces connected end to end of the track ring; the knocking block is respectively connected with the rotor and the working part and is used for driving the working part to reciprocate along the axial direction of the impeller shaft.

Optionally, the transmission part comprises a plurality of gears which are meshed in turn, and axes of the plurality of gears are parallel to each other; one of the gears is coaxially connected with the impeller shaft of the hydraulic impeller and is used for converting the rotation motion of the impeller shaft into the rotation motion of the gears; the working part is provided with a plurality of sub-working parts and is respectively connected with one gear, and the working part is used for driving the plurality of sub-working parts to do rotary motion by the rotary motion of the plurality of gears.

Optionally, the transmission part comprises a transmission shaft, one end of the transmission shaft is coaxially connected with the impeller shaft of the hydraulic impeller, and the other end of the transmission shaft is connected with the working part and is used for driving the working part to perform rotary motion.

Optionally, the working part has a supporting part and a contact part disposed on the supporting part, and the contact part is used for contacting a working object; the support portion is made of an elastic material, and the contact portion is made of a flexible material.

Optionally, the contact portion wraps the supporting portion, or the contact portion and the supporting portion are arranged in parallel.

Optionally, the elastic material is one or more of sponge, sewn textile, polyurethane and rubber, and the flexible material is one or two of sponge or textile.

Optionally, the working head includes a second housing and a coupling shaft; the second shell is used for being detachably connected with the first shell; the combining shaft penetrates through the second shell, one end of the combining shaft extends out of the second shell and is used for being connected with the hydraulic impeller, and the other end of the combining shaft is used for being connected with the transmission part.

Optionally, the second housing is configured to be connected to the first housing through a fastener, where the fastener is a unidirectional screwing-in fastener, and is configured to screw in a direction of rotation of the hydraulic impeller and be connected to the first housing, and/or the coupling shaft has a polygonal inner cavity, and the inner cavity is a blind hole and is configured to be matched with an impeller shaft of the hydraulic impeller.

Optionally, a second combining part is arranged outside the end, provided with the inner cavity, of the combining shaft, and the second combining part is serrated and is used for automatically aligning with the first combining part of the impeller shaft and is used for positioning the combining shaft and the impeller shaft.

In yet another aspect, the present invention also provides a hydraulic working device, including: the hydraulic sprinkler of any one of the above; and a working head as claimed in any one of the preceding claims; the hydraulic spraying device is connected with the working head and is used for converting water flow into power to be provided for the working head and driving the working head to move.

Optionally, the hydraulic spraying device is further used for spraying water to the surface of an external working object.

Compared with the prior art, the hydraulic working device, the hydraulic impeller, the hydraulic spraying device and the working head thereof provided by the invention have the following beneficial effects:

in the hydraulic impeller provided by the invention, the first surface of the tooth blade of the hydraulic impeller is matched with the outer peripheral surface of the impeller body, the second surface and the third surface of the tooth blade are respectively connected with two opposite sides of the first surface along the circumferential direction, the second surface has a first angle relative to the radial direction of the impeller body, the first angle is between 165 and 195 degrees, and the third surface is a back surface and is used for being consistent with the water flow direction, wherein the second surface is a water-facing surface for receiving the action of water flow to drive the hydraulic impeller to rotate, and the first angle can effectively utilize the impact kinetic energy of the water flow and improve the utilization rate of the water energy; in addition, the third surface is a notch on the back surface for guiding water flow to enter between the teeth blades, and the arrangement direction of the notch is almost consistent with the impact direction of the water flow, so that the resistance of the water flow entering the notch can be reduced, the movement resistance of the hydraulic impeller is reduced, and the water energy utilization rate is improved; furthermore, the water flow can be prevented from accumulating in the hydraulic impeller, the water flow kinetic energy loss increased due to water flow accumulation is avoided, and further, the range of the water flow after the hydraulic impeller is driven can be controlled to be splashed away from the hydraulic impeller to be reduced on the premise of ensuring the driving efficiency, so that the control of the water flow is facilitated.

In the hydraulic spraying device provided by the invention, the first shell is divided into the first cavity and the second cavity through the separation part, the two cavities are communicated through the one-way channel, the hydraulic impeller is arranged in the first cavity and driven to rotate by water flow flowing into the first cavity, and the water flow after driving the hydraulic impeller to rotate can be discharged to the second cavity through the one-way channel and flows out of the first shell, so that the first cavity is basically a water-free cavity, and the second cavity is basically a cavity filled with water, so that the second cavity is a pressure cavity, therefore, the rotation resistance of the hydraulic impeller is further reduced, the water energy utilization rate is improved, the waste of water resources and energy in the water resources is avoided, and particularly, the water resources collected by the second cavity can be used as external working water, so that the water resources are secondarily utilized; furthermore, the second cavity is a full water pressure cavity, so that after water is accumulated in the second cavity, the first shell can be uniformly and controllably sprayed out by utilizing the pressure of the inlet water, and therefore, the hydraulic spraying device provided by the invention can be independently used as a traditional spraying device and can also provide driving force for the outside to drive the working head to work.

Thirdly, in the working head provided by the invention, the transmission part can convert the rotation power provided by the hydraulic spraying device into various other movement modes, so that the working head can clean objects in the movement modes of reciprocation, knocking, single-point rotation, multi-point rotation and the like, further the working head can meet the requirements of various works, and has wide application and good adaptability.

Fourth, in the hydraulic working device provided by the invention, the hydraulic spraying device and the working head are matched for use, and when the working head moves to work, water spraying is provided, so that the working surface can be lubricated and the working resistance is reduced, or the working surface can be directly cleaned by the sprayed water, further, a better working effect is achieved, and the water is saved more effectively.

Drawings

The drawings are included to provide a better understanding of the invention and are not to be construed as unduly limiting the invention. Wherein:

FIG. 1 is a front view of a hydro-impeller of a preferred embodiment of the invention;

FIG. 2 is a left side view of the hydro impeller shown in FIG. 1;

FIG. 3 is a perspective view of the lobes of the hydro-impeller of the preferred embodiment of the invention;

FIG. 4 is a front partial cross-sectional view of a hydraulic sprinkler of a preferred embodiment of the present invention, wherein a third baffle is not provided;

FIG. 5 is a cross-sectional view of the hydraulic sprinkler of FIG. 4 without the hydraulic impeller taken along line b-b;

FIG. 6 is a cross-sectional view of the hydraulic sprinkler of FIG. 4 without the hydraulic impeller taken along line a-a;

FIG. 7 is a rear view of the hydraulic sprinkler shown in FIG. 4;

FIG. 8 is a cross-sectional view of the hydraulic sprinkler of FIG. 6 after engagement with a hydraulic impeller;

FIG. 9 is an overall cross-sectional view of a hydraulic sprinkler in accordance with a preferred embodiment of the present invention;

FIG. 10 is a schematic cross-sectional front view of the first chamber of the hydraulic sprinkler of FIG. 4;

FIG. 11 is a front partial cross-sectional view of a hydraulic sprinkler of the preferred embodiment of the present invention, wherein a third baffle is provided;

FIG. 12a is a schematic cross-sectional view of a buffer segment of a preferred embodiment of the present invention;

FIG. 12b is a schematic cross-sectional view of a buffer segment of a preferred embodiment of the present invention;

FIG. 12c is a schematic cross-sectional view of a buffer segment of a preferred embodiment of the present invention;

FIG. 12d is a schematic cross-sectional view of a buffer segment of a preferred embodiment of the present invention;

FIG. 13 is a schematic cross-sectional view of a water inlet aperture according to a preferred embodiment of the present invention;

FIG. 14a is a schematic partial cross-sectional front view of a second chamber of a preferred embodiment of the present invention, wherein a through-body is provided;

FIG. 14b is a schematic partial cross-sectional front view of a second chamber of a preferred embodiment of the present invention, wherein two penetrations are provided;

FIG. 15a is a schematic cross-sectional view of the hydraulic sprinkler of FIG. 11 taken along line b-b;

FIG. 15b is a front partial cross-sectional view of a hydraulic sprinkler of the preferred embodiment of the present invention, wherein the third baffle is diagonally disposed;

FIG. 16a is a schematic view of a hydro-impeller in combination with a coupling shaft according to a preferred embodiment of the invention;

FIG. 16B is a schematic cross-sectional view of the structure of FIG. 16a taken along line B-B;

FIG. 16c is a schematic cross-sectional view of the structure of FIG. 16a taken along line A-A;

FIG. 17 is a schematic view of the working portion of the preferred embodiment of the present invention;

FIG. 18 is an exploded view of a working head in a first embodiment of the present invention;

FIG. 19 is a cross-sectional assembly view of a working head in a second embodiment of the invention;

FIG. 20 is an exploded view of a work head in a third embodiment of the present invention;

FIG. 21 is an exploded view of a work head in a fourth embodiment of the present invention;

fig. 22 is an exploded view of a working head in a fifth embodiment of the present invention.

In the figure:

10-a hydraulic impeller; 11-an impeller body; 111-an outer peripheral surface; 12-tooth leaf; 121-a first side; 122-a second side; 123-third face; 124-fourth side; 125-fifth side; 13-cover plate; 14-impeller shaft; 141-a first junction;

20-a hydraulic spraying device; 21-a first housing; 211-a first cavity; 2110—an annular lumen; 2111-head end; 2112-terminus; 212-a second cavity; 2121-penetrating body; 2122-through holes; 213-connecting channels; 2131-a first opening; 2132-a second opening; 2133-slit; 214-water inlet holes; 215-water outlet holes; 216-a buckle seat; 221-a first working wall; 222-a second working wall; 223-a third working wall; 224-fourth working wall; 225-a fifth working wall; 226-a buffer segment; 23-dividing part; 231-sloping surface; 232-a water discharge hole; 241. 242-bearings; 251-a first baffle; 252-a second baffle; 253-third baffle; 26-handle; 261 hollow channel

30-Working head; 31-working part; 311-supporting parts; 312-contacts; 32-a transmission part; 321-eccentric wheel; 322-motion frame; 323-orbit; 3231-orbital ring; 3232—a fixing portion; 324-bevel gear; 325-eccentric shaft; 326-rotor; 327-knocking blocks; 328-drive shaft; 329-gear; 33-a second housing; 331-snap; 332-a bracket; 34-a coupling shaft; 341-lumen; 342-second junction.

Detailed Description

The invention is described in further detail below with reference to the drawings and the specific examples. And advantages and features of the invention will become apparent from the description that follows.

It should be noted that the drawings are in a very simplified form and are all to a non-precise scale, merely for convenience and clarity in aiding in the description of embodiments of the invention. Furthermore, the structures shown in the drawings are often part of actual structures. In particular, the drawings are shown with different emphasis instead being placed upon illustrating the various embodiments.

As used in the appended claims and this specification, the singular forms "a," "an," and "the" include plural referents unless the content clearly dictates otherwise. As used in the appended claims and this specification, the term "or" is generally employed in its sense including "and/or" unless the content clearly dictates otherwise.

Referring to fig. 1to 3, fig. 1 is a front view of a hydro-impeller according to a preferred embodiment of the present invention, fig. 2 is a left side view of the hydro-impeller shown in fig. 1, and fig. 3 is a perspective view of a tooth blade of the hydro-impeller according to a preferred embodiment of the present invention. As shown in fig. 1 and 2, a first embodiment of the present invention provides a hydraulic impeller 10, which includes a cylindrical impeller body 11, where a plurality of teeth 12 are uniformly distributed on the peripheral surface of the impeller body 11 along the circumferential direction, and the plurality of teeth 12 are preferably arranged end to end, i.e. adjacent teeth 12 are arranged in a continuous manner.

As shown in fig. 3, the tooth 12 is a pentahedron having a first face 121, a second face 122, a third face 123, a fourth face 124, and a fifth face 125. Wherein: the first surface 121 is matched with the outer circumferential surface 111 of the impeller body 11, i.e. the first surface 121 is actually a circumferential surface; the second surface 122 and the third surface 123 are arranged in a sharing way and are respectively connected with two opposite sides of the first surface 121 in the circumferential direction of the impeller body 11, and the common side of the second surface 122 and the third surface 123 is preferably parallel to the axis of the impeller body 11; the fourth surface 124 and the fifth surface 125 are parallel to each other and are respectively connected to opposite sides of the first surface 121 in the axial direction of the impeller body 11, and the second surface 122 and the third surface 123 are preferably perpendicular to the fourth surface 124 and the fifth surface 125.

In the present invention, the second surface 122 is an upstream surface and forms a first angle α between 165 ° and 195 ° with the radial direction of the impeller body 11, and the first angle α is also an included angle between the second surface 122 and a perpendicular plane of the impeller body 11. Here, the perpendicular plane refers to a plane where the intersection line of the second surface 122 and the outer peripheral surface 111 and the central axis of the impeller body 11 are located. The third surface 123 is a back surface and is used to coincide (parallel) with the water flow direction s, specifically, the water flow direction s refers to the direction when the water flow critically contacts the tooth blade 12, that is, the direction of the water flow when the water flow hits and contacts the tooth blade 12. It should also be understood that fig. 1 illustrates a preferred embodiment of the present invention, that is, the first angle α is 180 °, and those skilled in the art will recognize from this illustration that the first angle α may be other angles.

In the present invention, the second surface 122 is used for directly impacting the water flow, and the angle formed by the second surface 122 and the water flow is closely related to the water energy utilization efficiency, and experiments show that when the first angle α between the second surface 122 and the radial direction of the impeller body 11 is 165 ° to 195 °, the water energy utilization efficiency is higher when the water flow impacts the teeth 12, especially when the first angle α is 180 °, the moment generated by the water flow on the hydraulic impeller is the largest, and the water energy utilization efficiency is the highest. In addition, the third surface 123 is used for guiding the water flow to enter between the teeth 12, and the setting direction of the third surface 123 is almost consistent with the instantaneous direction when the water flow critically contacts the teeth 12, so that the resistance of the water flow entering between the teeth 12 can be reduced, the movement resistance of the impeller can be reduced, the water energy utilization rate can be improved, in addition, the water flow can be prevented from rushing to the impeller body 11 and accumulating in the hydraulic impeller 10, and further the increased water flow kinetic energy loss caused by the water flow accumulation can be avoided.

Further, the hydraulic impeller 10 further includes two cover plates 13 coaxially disposed with the impeller body 11, disposed on two end surfaces of the impeller body 11 parallel to each other, and connected to the fourth surface 124 and the fifth surface 125, respectively. In this embodiment, the fourth surface 124 and the fifth surface 125 are preferably aligned with two ends of the impeller body 11, where the thickness of the tooth 12 is the distance between the fourth surface 124 and the fifth surface 125, which is equal to the thickness of the impeller body 11, and the thickness t of the hydraulic impeller 10 is the sum of the thickness of the impeller body 11 and the thicknesses of the two cover plates 13 at the two ends (as shown in fig. 1). The cover plates 13 may be circular, and the outer edges thereof coincide with the circumscribed circles defined by the plurality of teeth 12 (i.e. have the same diameter), so that a triangle or trapezoid notch is formed between each two cover plates 13 and each two teeth 12, so that the water flow can not flow out along the axial direction of the impeller body 11 to cause kinetic energy loss after impacting the teeth 12 to drive the hydraulic impeller 10 to rotate, and further, the kinetic energy of the water flow is continuously concentrated on the teeth 12 when the hydraulic impeller 10 has a work load, thereby improving the water energy utilization rate of the hydraulic impeller.

Still further, the hydraulic impeller 10 further includes an impeller shaft 14, and the impeller shaft 14 is disposed at the center of the impeller body 11. Preferably, one end of the impeller shaft 14 passes through one of the cover plates 13, more preferably one end of the cover plate 13, and a first coupling portion 141 is provided, and the first coupling portion 141 is adapted to cooperate with an external mechanism, in the present invention, a working head described below, to locate the mounting position of the external mechanism on the impeller shaft 14. Here, the impeller shaft 14 serves as a rotation shaft of the impeller body 11 for rotation and outputting power to the outside. Preferably, the end of the impeller shaft 14 passing through one of the cover plates 13 is preferably prismatic, and the prismatic end is used for facilitating meshing output torque when being connected with an external mechanism. In addition, the first coupling portion 141 is provided at one end of the prism shape, and the first coupling portion 141 preferably has a chamfer structure corresponding to the number of the prism shape, and the chamfer surface may have a triangular shape or a trapezoidal shape. The chamfer faces are symmetrically distributed along the center of the axis of the impeller shaft 14 to form a pyramid or land. The first engagement portion 141 is adapted to automatically locate and align the edge of the impeller shaft 14 when engaged with the outer working head.

Still further, the hydro-impeller 10 of the present invention is adapted to be rotated by a water flow at a predetermined flow rate V ranging from 0.5 to 6.0m/s and a predetermined flow rate Q ranging from 0.06 to 35.0L/min, such that the hydro-impeller 10 of the present invention is driven by a relatively low pressure water flow, such as domestic water, e.g., tap water. More specifically, the thickness t of the hydraulic impeller 10 is preferably between 2 and 20mm, the outer radius r of the impeller body 11 is preferably between 2 and 200mm, the number of the teeth 12 is preferably between 15 and 200, and the common edge of the second face 122 and the third face 123 has a vertical distance d with respect to the outer peripheral surface 111 of the impeller body 11, and the ratio of the vertical distance d to the outer radius r of the impeller body 11 is preferably between 0.015 and 0.20. Here, the vertical distance d is actually the tooth She Shendu of the tooth blade 12, and the ratio of the tooth She Shendu d to the outer radius r of the impeller body is in the range of 0.015 to 0.20, i.e. the tooth blade depth is shallow with respect to the impeller body. The inventors have found that the smaller the predetermined flow rate V and the predetermined flow rate Q, the smaller the thickness t and the outer radius r of the hydro-impeller 10 should be, the smaller the number of teeth 12 should be, to accommodate a small flow of water.

It should be appreciated that there are a variety of configurations for existing hydro impellers that can accept water flow drives of different flow rates and flow rates, such as hydro generator impellers having large and deep lobes, with fewer lobes relative to the hydro impeller 10 of the present invention, because the hydro generator impeller needs to handle water flows of greater flow rates and flow rates that have higher kinetic energy. The hydraulic impeller 10 of the present invention is mainly used for coping with a relatively small flow rate and a small flow rate, such as tap water provided by a city pipe network, water extracted by a water pump or water provided by a water tank having a certain height, etc., so that the scale of the hydraulic impeller is limited, that is, the small water flow does not push the thick impeller, thereby limiting the thickness and radius of the hydraulic impeller not to be too large. In addition, the small water flow does not move the large and deep tooth leaves, so the tooth leaves of the invention are limited to shallow teeth, and the number of the tooth leaves is relatively large, so that the limited kinetic energy of the small water flow can be more effectively utilized.

In some embodiments, the hydraulic impeller 10 may be applied to small-scale hydraulic impeller devices, such as oral cleaners, where the predetermined flow rate V is preferably 0.5m/s, the predetermined flow rate Q is 0.06L/min, the ratio d/r of the vertical distance d to the outer radius r of the impeller body 11 is=0.15, the thickness t of the hydraulic impeller 10 is=2 mm, the outer radius r of the impeller body 11 is=2 mm, and the number of teeth is 200.

In other embodiments, the hydraulic impeller 10 may be used in a medium-scale hydraulic impeller device, such as a hand shower, where the predetermined flow rate V is preferably 6m/s, the predetermined flow rate Q is 5L/min, the ratio d/r=0.084 of the vertical distance d to the outer radius r of the impeller body 11, the thickness t=9 mm of the hydraulic impeller 10, the outer radius r=25.6 mm of the impeller body 11, and the number of teeth of 37.

In other embodiments, it is preferred that the predetermined flow velocity V is 6m/s, the predetermined flow rate Q is 5L/min, the ratio d/r=0.149 of the vertical distance d to the outer radius r of the impeller body 11, the thickness t=11 mm of the hydro-impeller 10, the outer radius r=24.15 mm of the impeller body 11, and the number of teeth 17.

The relationship between the size of the hydraulic impeller 10 and the predetermined flow rate V and the predetermined flow rate Q are listed above, and it should be noted that the matching scheme of the size of the hydraulic impeller 10 and the predetermined flow rate V and the predetermined flow rate Q according to the present invention includes, but is not limited to, the above-mentioned scheme, for example, the hydraulic impeller 10 may be applied to a large-scale hydraulic impeller device, such as a floor cleaner, where the predetermined flow rate V is preferably 2.1m/s, the predetermined flow rate Q is 35.0L/min, the ratio d/r=0.015 of the vertical distance d to the outer radius r of the impeller body 11, the thickness t=20 mm of the hydraulic impeller 10, the outer radius r=200 mm of the impeller body 11, and the number of teeth is 15; other dimensions and different predetermined flow rates V and predetermined flow rates Q are within the scope of the present invention.

In order to better improve the utilization rate of the water energy, the impeller body 11 is preferably designed to be a hollow structure, so that the weight of the whole hydraulic impeller is reduced, and the utilization rate of the water energy is improved. The hollow structure may be a hollow structure, which is disposed between the outer peripheral surface 111 and the impeller shaft 14, and is a hollow ring structure concentrically disposed with the impeller body 11; alternatively, the hollow structure may be a multi-layered hollow structure, that is, a hollow ring structure having a plurality of inner and outer layers arranged in a stacked manner.

Further, the inventors have found that the hydraulic power impeller rotates in air and submerged in water with a large difference in rotation resistance, and that the impeller rotates in air with a smaller resistance, so that the water power utilization rate is also higher. On the other hand, if the water flow is simply led out of the water wheel after being impacted by the impeller, although the impeller can be guaranteed to rotate in the air, the water flow is difficult to redirect by utilizing the water pressure of the water flow like a shower due to the existence of the air and the high water flow speed, and is difficult to be used for further cleaning work, and the water and the residual pressure of the water flow are wasted in practice.

Referring to fig. 4 to 15b, fig. 4 is a front partial sectional view (without a third baffle) of the hydraulic sprinkler of the preferred embodiment of the present invention, fig. 5 is a sectional view along the line b-b when the hydraulic sprinkler of fig. 4 does not include a hydraulic impeller, fig. 6 is a sectional view along the line a-a when the hydraulic sprinkler of fig. 4 does not include a hydraulic impeller, fig. 7 is a rear view of the hydraulic sprinkler of fig. 4, fig. 8 is a sectional view of the hydraulic sprinkler of fig. 6 after being mated with the hydraulic impeller, fig. 9 is a front partial sectional view of a first cavity of the hydraulic sprinkler of the preferred embodiment of the present invention, fig. 10 is a front partial sectional view (with a third baffle) of the hydraulic sprinkler of fig. 4, fig. 12 a-12 d is a sectional view of a buffer section of the preferred embodiment of the present invention, fig. 13 is a sectional view of a water inlet hole of the preferred embodiment of the present invention, fig. 14a and 14b are schematic views of a second cavity of the preferred embodiment of the present invention, and fig. 15b is a front partial sectional view of the hydraulic sprinkler of the first cavity of the hydraulic sprinkler of the preferred embodiment of the present invention, fig. 11 is a front partial sectional view of the hydraulic sprinkler of the first cavity of the hydraulic sprinkler of the preferred embodiment of the present invention.

As shown in fig. 4 to 15b, a hydraulic shower 20 comprises a first housing 21 and a hydraulic impeller 10 as described above. Wherein the first housing 21 is divided into a first cavity 211 and a second cavity 212 by a partition 23, in the embodiment of the present invention, the first cavity 211 and the second cavity 212 are preferably arranged in the axial direction of the hydro-impeller 10. Further, the first chamber 211 and the second chamber 212 communicate through a communication passage 213 penetrating the partition 23. The first housing 21 is further provided with a water inlet 214 communicating with the first chamber 211, and the hydraulic impeller 10 is disposed in the first chamber 211.

In practice, the partition 23 is established in the first casing 21 in the radial direction of the hydro-impeller 10 so as to partition the first casing 21 in the axial direction to form the first cavity 211 and the second cavity 212, but the partition direction of the first casing 21 is not particularly limited in the present invention as long as two cavities can be formed.

In actual use of the hydraulic spraying device 20, water flows into the first cavity 211 through the water inlet 214 and drives the hydraulic impeller 10 to rotate, and then the water flow which drives the hydraulic impeller 10 to rotate in the part flows into the second cavity 212 through the connecting channel 213 and is further discharged out of the first housing 21. For this reason, in actual use, the first cavity 211 is a substantially anhydrous cavity except the area where the water flow directly impacts the hydraulic impeller 10, and the second cavity 212 is a substantially water-filled cavity, so that the hydraulic impeller 10 is disposed in the first cavity 211, and the first cavity 211 is substantially anhydrous, so that the water does not form resistance to the rotation of the hydraulic impeller 10, and thus water can be efficiently utilized, and further water can be saved, while the second cavity 212 is a substantially water-filled cavity, and the conduction effect of water pressure can be fully utilized, so that the water is redirected and uniformly sprayed out for other needs, such as cleaning or lubrication. Obviously, the hydraulic spraying device can be used as a traditional shower, and has all functions and advantages of the traditional shower.

Further, the first cavity 211 is separated from the communication channel 213 by a first baffle 251, the hydraulic impeller 10 is disposed in the center of the first cavity 211, one end of the communication channel 213 is communicated with the first cavity 211 through a first opening 2131 disposed along the circumferential direction of the hydraulic impeller 10, and the other end is communicated with the second cavity 212 through a second opening 2132 disposed along the axial direction of the hydraulic impeller. The first baffle 251 is disposed along a portion of the periphery of the hydraulic impeller 10, and is used for blocking the water flow after driving the hydraulic impeller 10 to rotate from continuing to flow into the first cavity 211 along the periphery of the hydraulic impeller 10, and guiding the water flow after driving the hydraulic impeller 10 to rotate to flow to the communication channel 213 through the first opening 2131, and then enter the second cavity 212 through the second opening 2132. Here, the first chamber 211 is basically a non-water chamber except for the part where the water flow impacts the hydraulic impeller 10 to directly work, so the first chamber 211 and the communication channel 213 are defined by the first baffle 251. Preferably, the first baffle 251 is generally crescent-shaped recessed away from the hydro-impeller 10, preferably having only one pointed end at a circumferential location, more preferably adjacent the region where the water stream impinges the hydro-impeller 10, to better act to separate the water stream.

As shown in fig. 10, the first cavity 211 and the hydraulic impeller 10 actually form an annular cavity 2110 (hatched in the figure), and a second baffle 252 disposed along a portion of the periphery of the hydraulic impeller 10 is further disposed in the annular cavity 2110, and at least a portion of the second baffle 252 is located between the hydraulic impeller 10 and the first baffle 251. Here, the annular cavity 2110 is divided into two ends by the water inlet 214, the end of the water impeller 10 in the annular cavity 2110 facing away from the water inlet 214 along the rotation direction d is the head end 2111, and the end of the water impeller 10 facing toward the water inlet 214 along the rotation direction d is the tail end 2112, that is, after the water flow enters the annular cavity 2110 from the water inlet 214, the water flow passes through the head end 2111, the first opening 2131 and the first baffle 251 of the annular cavity 2110 in sequence along the rotation direction of the water impeller 10, and a small amount of residual water will follow the rotation of the water impeller 10 and enter the tail end 2112 of the annular cavity 2110. Thus, a second baffle 252 is disposed at the end 2112 of the annular inner cavity 2110 in the direction of rotation d of the hydro wheel 10 for further blocking water flow into the first chamber 211 as it is not blocked by the first baffle 251 while directing water flow out of the first housing 21. If the first baffle 251 cannot completely block the water flow driving the impeller 10, a small amount of residual water will continue to flow along the impeller 10 to the annular cavity 2110, and since the water will adhere to the wall surface of the annular cavity 2110 due to centrifugal force, the second baffle 252 is provided to further block the water, so as to further ensure that the impeller 10 can rotate in the air.

Further, as shown in fig. 6, and referring to fig. 4, 5 and 8, the side of the partition 23 facing the first cavity 211 is a slope 231 inclined from the center to the periphery, and preferably, a drain hole 232 is further provided around the partition 23, and the drain hole 232 is more preferably located at the end of the annular cavity 2110 along the rotation direction of the impeller 10 and between the second baffle 252 and the first baffle 251, so as to drain the water flowing into the first cavity 211 out of the first casing 21. As can be seen, the first cavity 211 is basically a water-free cavity, and in actual use, it cannot be completely guaranteed that all the water flows along the direction guided by the first baffle 251 and the communication channel 213, and a very small amount of residual water continues to rotate along with the hydraulic impeller 10 and is deposited in the first cavity 211, but if the residual water is not discharged for a long time, a lot of water is accumulated in the first cavity 211, and the service efficiency of the hydraulic impeller 10 is further affected, so that the water is thrown out by the centrifugal force of the hydraulic impeller 10, and then discharged out of the first cavity 211 through the water discharge hole 232 according to the guidance of the second baffle 252 and the first baffle 251. In addition, the partition 23 is designed to have a slope 231 and the drain hole 232 is formed at the edge thereof, so that the residual water can be more conveniently discharged out of the first cavity 211 by utilizing the slope thereof, and further discharged out of the whole hydraulic spray device through the first housing 21.

Referring to fig. 11 in combination with fig. 15a and 15b, preferably, one end of the first baffle 251 is adjacent to the first opening 2131, the end of the first baffle 251 adjacent to the first opening 2131 is further provided with a third baffle 253, and the third baffle 253 is disposed along the radial direction of the hydraulic impeller 10, and the inventor finds that the opening size of the first opening 2131 is closely related to the water flow speed, especially when the water flow speed is high, the first opening 2131 may scatter along the hydraulic impeller 10, and the opening of the first opening 2131 needs to be enlarged to enable the water flow to enter the communication channel 213. When the water flow speed is further increased, the third baffle 253 can be provided to block and guide the water flow, so that the width of the connecting channel 213 and the opening to the second cavity 212 can be increased to reduce the resistance of the water flow, and the third baffle 253 provided at this time has the function of enabling the water flow to pass through unidirectionally, which can prevent the water flowing back to the first cavity 211 due to the larger water pressure of the second cavity 212. The third baffle 253 is disposed along the radial direction of the impeller 10, and is not disposed through the center of the impeller 10 toward the radial direction of the impeller 10 in a narrow sense, but is broadly understood to be disposed away from the center of the impeller 10, that is, may be disposed obliquely, so long as it is not disposed along the circumferential direction of the impeller 10, and preferably, the extending direction of the third baffle 253 follows the rotating direction of the impeller 10 (the extending direction of the third baffle is defined as the direction from the end near the impeller 10 to the end far from the impeller 10), and the angle between the third baffle 253 and the water flow is relatively smaller, so that the water flow can be gathered better, and in addition, the effective length of the third baffle 253 can be prolonged by being obliquely arranged, as shown in fig. 15 b. Further, one end of the third baffle 253 is connected to the first baffle 251, and the other end has a space 2134 between the other end and the inner wall of the communication channel 213 in the radial direction of the hydraulic impeller 10, and the space 2134 is preferably consistent with the width and height of the water flow leaving the hydraulic impeller 10 at this time, so that the space 2134 may have various shapes according to the water flow speed. Preferably, the width of the gap 2134 decreases, remains the same or increases progressively from the side away from the second cavity 212 to the side closer to the second cavity 212, where the gap 2134 is actually configured to allow the water flow to pass in one direction, and its cross-sectional configuration matches the configuration of the water flow as it diverges away from the hydro-impeller 10, to facilitate the water flow. The cross-sectional shape of the water flows according to different speeds is different, wherein the width of the gap 2134 decreases from the side far from the second cavity 212 to the side near to the second cavity 212; the width remains unchanged, which means that the edge of the third baffle 253 is parallel to an inner wall of the communication channel 213; the decreasing width of the gap 2134 means that the middle of the edge of the third baffle 253 protrudes toward an inner wall of the communication channel 213, as shown in fig. 15 a. The three different forms of the gap 2134 can adapt to different flow rates, wherein an inner wall of the communication channel 213 can be the second working wall 222 described below. In particular, one end of the third baffle 253 is connected to the first baffle 251, which does not narrowly mean that the end of the third baffle 253 is connected to the first baffle 251, but may also mean that the portion of the third baffle 253 near the end is connected to the first baffle 251, and the end of the third baffle 253 may also extend in a direction toward the impeller 10, that is, the third baffle 253 and the first baffle 251 intersect to form a T-shape, as shown in fig. 15b, which can accommodate a case where the connecting channel 213 is relatively narrow, so as to increase the effective length of the third baffle 253. Optionally, the third baffle 253 is a cambered surface, and the center of the third baffle 253 faces away from the water flow direction, that is, the third baffle 253 smoothly faces the water flow to further reduce the resistance (as shown in fig. 11). The third baffle 253 is preferably disposed perpendicular to the partition 23, which can be better used for guiding the water flow, but the third baffle 253 may be disposed obliquely to the partition 23, and the inclined surface thereof is preferably directed to the side of the second chamber 212, so that the splashed water flow can be reduced.

Referring to fig. 5, and referring to fig. 4, 6 and 8, in the present embodiment, the first housing 21 further has a first working wall 221, the first working wall 221 is located in the first cavity 211 and covers a portion of the periphery of the hydraulic impeller 10, and one side of the first working wall is adjacent to the water inlet 214 and is used for guiding the water flowing out of the water inlet 214 to drive the hydraulic impeller 10 to rotate. The starting point of the first opening 2131 is preferably located at the front side of the main sputtering range of the hydraulic impeller 10 after passing through the first working wall 221 from the water inlet 214 in the rotation direction of the hydraulic impeller 10, and the ending point of the first opening 2131 (i.e., the starting point of the first baffle 251) is preferably located at the rear side of the main sputtering range of the hydraulic impeller 10. The main splash zone herein refers to the zone where most of the water is splashed away from the hydro-impeller 10 after the water is pushed against the hydro-impeller 10, and this zone varies depending on the water velocity.

Furthermore, the cross section of the communication channel 213 is preferably C-shaped, and in particular, the communication channel is composed of a second working wall 222, a third working wall 223 and a fourth working wall 224, wherein the second working wall 222 is disposed along the circumferential direction of the hydraulic impeller 10, and one end of the second working wall is adjacent to the first working wall 221 through a buffer section 226, and the buffer section 226 is used for buffering and guiding the water flow after exiting the hydraulic impeller 10; optionally, a portion of the second working wall 222 covers the first opening 2131; the fourth working wall 224 is disposed between the hydraulic impeller 10 and the second working wall 222 and opposite to the second working wall 222, the third working wall 223 is disposed along the axial direction of the hydraulic impeller 10 and on a side far away from the second cavity 212, and the third working wall 223 is connected with the fourth working wall 224 and the second working wall 222, and has a common edge. Here, since one end of the connecting channel 213 is connected to the first cavity 211, the water flow continues to enter the connecting channel 213 at a high speed after pushing the hydraulic impeller 10 to rotate, and at this time, the water flow is mainly attached to the wall surface to flow due to the special wall surface configuration of the connecting channel 213, so that the water flowing along the wall surface can directly enter the second cavity 212, and the rebound and the splash of the water flow in the connecting channel 213 are reduced.

The communication channel 213 further preferably has a fifth working wall 225 disposed opposite to the third working wall 223, the fifth working wall 225 being disposed along the axial direction of the hydraulic impeller 10 and disposed on a side of the communication channel 213 adjacent to the second cavity 212, one end of the fifth working wall 225 being connected to the partition 23, and a slit 2133 extending along the circumferential direction of the hydraulic impeller 10 being further formed on a side of the fifth working wall 225 away from the hydraulic impeller 10; the slit 2133 communicates the communication channel 213 with the second cavity 212, and is used for allowing the water flow entering the communication channel 213 to flow into the second cavity 212 through the slit 2133. The fifth working wall 225 further reduces the rebound and splash of the water flow in the channel 213, and the slit 2133 provides a direct entry of a portion of the wall-flowing water into the second chamber 212. Preferably, as the water flow rate increases, the fifth working wall 225 may decrease in width to increase the width of the gap 2133 and reduce the resistance to water flow therethrough. In particular, when the water flow rate is high, the fifth working wall 225 may not be provided, that is, the slit 2133 replaces the fifth working wall 225, and the cross section of the communication channel 213 is in a C shape with one side opened.

Referring to fig. 8, in combination with fig. 4 and 5, one end of the impeller shaft 14 of the hydraulic impeller 10 may be connected to the first housing 21 through a bearing 241, and the other end may be connected to the partition 23 through another bearing 242 and extend out of the partition 23. Since the hydraulic impeller 10 is connected to the first casing 21 and the partition 23 via bearings, the bearings are preferably open bearings because of reduced resistance, and if the slope 231 is not provided, some residual water may flow out from between the bearings, thereby affecting the operation of the bearings. In addition, the open type bearing has a certain amount of looseness, so that the periphery of the hydraulic impeller 10 can possibly jump along the axial direction, and the slope 231 ensures that the periphery of the hydraulic impeller 10 can not generate friction with the partition part 23.

Preferably, the first working wall 221 is an arc surface and is concentrically disposed with the hydraulic impeller 10, and in practice, the first working wall 221 is substantially fitted to the outer circumferential contour of the hydraulic impeller 10, and there is a small gap therebetween, which can digest some of the errors caused by the bearing. In particular, in operation, since the bearing is not of a fully closed structure, the hydraulic impeller 10 may generate runout in the axial direction or the radial direction, and the gap may prevent the hydraulic impeller 10 from colliding or rubbing with the first working wall 221 during operation, so as to avoid vibration or unnecessary resistance. On the other hand, the circular arc-shaped first working wall 221 can prevent the water flow from being ejected from the outside when the hydraulic impeller 10 receives load resistance, so that the water flow can be concentrated on the hydraulic impeller 10, and the working efficiency is improved, and therefore, the first working wall 221 can well guide the water flow to drive the hydraulic impeller to rotate. It is obvious that the first working wall 221 has a certain length to ensure that the water flow is guided to rotate the hydraulic impeller 10, for example, the length of the first working wall 221 may be greater than 0.5 teeth She Jianju, where the teeth She Jianju refer to the distance between the tips of two teeth 12 on the hydraulic impeller 10, and the length of the first working wall 221 is preferably greater than or equal to 2 teeth She Jianju to better guide the water flow, and when the hydraulic impeller 10 is loaded and is subjected to resistance, the water flow is prevented from being sputtered from the edge of the hydraulic impeller 10, so as to concentrate the driving force of the water flow.

Preferably, the second working wall 222 is a spherical surface, and its normal line points to the second cavity 212, that is, the second working wall 222 is an oblique spherical wall, and its opening faces the second cavity 212. When the water flow finishes driving the hydraulic impeller 10, the water flows out along the first working wall 211 and enters the ball wall, and then the water flow changes the moving direction due to the centripetal force of the ball wall, and the water flow also flows towards the second cavity 212 because the normal line of the ball wall points to the second cavity 212. The spherical surface can be a spherical surface, or can be an ellipsoidal surface, a paraboloid, a hyperboloid and other three-dimensional curved surfaces, and the spherical surface can exert the function of forcing water flow to change direction.

Preferably, at least a portion of the third working wall 223 extends in a spiral manner along the separation direction of the cavities, for example from the first cavity 211 towards the second cavity 212. The fourth working wall 224 is preferably circular arc-shaped with the normal line facing the hydro-impeller 10. Further, the third working wall 223 and the fifth working wall 225 are disposed perpendicular to the fourth working wall 224. Here, the third working wall 223 is actually a spiral-shaped pressing surface gradually descending toward the second cavity 212, and when the water flows along the second working wall 222, the third working wall 223 may cooperate with the second working wall 222 through the spiral-shaped pressing surface, so that the water flows through the second opening 2132 and enters the second cavity 212. In actual operation, the water flow mainly adheres to the second working wall 222 due to its own flowing direction and higher speed, and in addition, the water flow moving along the wall tends to spread around, and after the water flow crosses the second working wall 222 to reach the third working wall 223, the water flow is guided by the third working wall 223 pressed down in a spiral shape and adheres to the surface of the third working wall 223 to flow, and finally enters the second cavity 212 through the second opening 2132. On the other hand, when the water flows across the second working wall 222 to the fifth working wall 225, due to the provision of the slit 2133, a part of the water flowing against the second working wall 222 can be directly introduced into the second cavity 212, and the rebound and the splash of the water flow in the communication channel 213 can be reduced. Alternatively, the third working wall 223 may be a combination of a partially flat surface and a spiral surface, i.e. the third working wall 223 is a flat surface parallel to the fifth working wall 225 when the water flow enters the communication channel 213, preferably parallel to the partition 23, and the third working wall 223 changes to a spiral surface pressed down when the water flow decreases a certain speed in the communication channel. The combination of the flat and spiral surfaces reduces the splash of water in the channels 213. Alternatively, a flat surface may be disposed on a side of the third working wall 223 away from the water flow inlet channel 213, where the flat surface is disposed along the axial direction of the hydraulic impeller 10, and the flat surface is disposed opposite to the spiral surface, so as to increase the cross-sectional area of the water flow, thereby reducing the resistance. The flat surface here is also preferably parallel to the partition 23.

In particular, the communication channel 213 may be provided with the second working wall 222 or the third working wall 223 separately, or may be provided with the second working wall 222 and the third working wall 223 simultaneously, if the water flow rate is not high, or may be provided with the fourth working wall 224 and the fifth working wall 225 selectively, as required, in an extreme example, in a case of a low water flow rate, the cross section of the communication channel 213 may even be a normal circular tube shape, and the low-speed water flow can automatically adapt to the cross section of the low-speed water flow and flow into the second cavity 212. Therefore, the present invention is not limited to the combination of the various sidewalls of the connecting channel 213, and all of them are within the scope of the present invention.

Please refer to fig. 12a to 12d, which are schematic cross-sectional views of a buffer segment according to a preferred embodiment of the present invention.

Preferably, the buffer section 226 is a straight section, a curved section, a straight common section or a sudden change section, and is used for buffering and guiding the water flow after exiting the hydraulic impeller. The buffer section 226 is disposed between the first working wall 221 and the second working wall 222, so that the water flow flowing out of the hydraulic impeller can be buffered, and the water flow can be blocked or guided according to different conditions of the water flow speed, such as slowing down or changing the flow direction, so as to better enter the communication channel 213. The buffer section 226 may preferably be a straight section, as shown in fig. 12a, where the radial cross-section of the buffer section 226 along the first cavity 211 is a straight section, preferably parallel or coincident with the axis of the water inlet 214, so that the water flow has less resistance when flowing through the buffer section 226. More preferably, the buffer section 226 is disposed perpendicular to the partition 23. The buffer section 226 may be preferably a curved section, as shown in fig. 12b, where the radial cross section of the buffer section 226 along the first cavity 211 is a curved section, preferably a circular arc or a parabolic shape, and the tangent line at one end connected to the first working wall 221 is parallel or coincident with the axis of the water inlet 214, and the other end is preferably smoothly connected to the second working wall 222, so that the buffer section 226 is designed to allow the water flow to smoothly pass through and smoothly change direction with less resistance. The buffer section 226 may be preferably a curved section, as shown in fig. 12c, where the radial cross section of the buffer section 226 along the first cavity 211 is a curved section, specifically, one end of the buffer section connected to the first working wall 221 is a straight line section, which is preferably parallel or coincident with the axis of the water inlet 214, and one end of the buffer section connected to the second working wall 222 is a curved section, which is preferably smooth and connected to the straight line section and the second working wall 222 respectively, and this scheme combines the advantages of the straight line section scheme and the curved section scheme. The buffer section 226 may also be preferably an abrupt section, as shown in fig. 12d, the radial section of the buffer section 226 along the first cavity 211 is a folded angle, which is connected to the first working wall 221 and then abruptly turned, and then connected to the second working wall 222 after passing through the folded angle. The abrupt transition forms a small cavity that temporarily stores a small amount of water flowing through the buffer section 226, thereby allowing a smoother flow of water through the buffer section 226. In particular, the length of the buffer section 226 may be different according to the water flow speed, and may even be only one line under some water flow speeds, that is, the second working wall 222 is directly connected to the first working wall 221, and the turning line at the connection point is the buffer section 226.

Next, the working principle of the hydraulic sprinkler according to the present embodiment will be further described with reference to fig. 4, and with reference to fig. 5 and 6. As shown in fig. 4, after the water flow enters the first cavity 211 from the water inlet 214, the water flow impacts the teeth 12 of the hydraulic impeller 10, so as to drive the hydraulic impeller 10 to rotate, obviously, the hydraulic impeller 10 in the figure rotates clockwise, and the water flow immediately flows out of the first cavity 211 through the connecting channel 213 under the guidance of the first working wall 221 of the first housing 21 due to the cover plate 13 with shallow teeth and two ends of the hydraulic impeller 10, so that the first cavity 211 is basically a water-free cavity, and the hydraulic impeller 10 has small resistance when rotating in the first cavity 211, thereby being capable of efficiently utilizing the water energy.

Further, referring to fig. 6 and 7, the first housing 21 further has a water outlet 215 communicating with the second cavity 212, and the water flow substantially fills the second cavity 212 after entering the second cavity 212 through the connecting channel 213, so that the water flow can be uniformly ejected from the water outlet 215 at a certain speed after changing the flow direction by using the pressure conductivity of the liquid. Therefore, the presence of the first cavity 211 and the second cavity 212 improves the water utilization efficiency of the hydraulic impeller 10, and ensures that the water flow ejected from the water outlet 215 has a desired direction and a certain speed, and ensures that the water flow is ejected uniformly. Preferably, the water outlet 215 is tapered, and the inlet is large and the outlet is small, so that static pressure is converted into dynamic pressure when water is sprayed out, and the flow speed and smoothness of the sprayed water are further improved. The water outlet holes 215 are not limited to one, but may be plural, and when the water outlet holes 215 are plural, they are preferably uniformly distributed on a side of the first housing 21 adjacent to the second chamber 212 so as to uniformly discharge water.

As shown in fig. 14a, in some embodiments, a through body 2121 penetrating the second cavity 212 is further preferably provided on the first housing 21, and two through holes 2122 are provided on the through body 2121, where one through hole 2122 is used to allow the impeller shaft 14 of the hydraulic impeller 10 to pass through, and the other through hole 2122 is used to form the water drain 232 on the partition 23. Since both the impeller shaft 14 and the weep hole 232 are actually required to extend through the second cavity 212, they need to be sealed from the second cavity 212. In practice, to facilitate the manufacture and assembly of the first housing 21, the first housing 21 is manufactured and assembled in two parts, namely, an upper cover and a lower cover, so that the provision of a through body 2121 facilitates the improvement of the sealing property between the upper cover and the lower cover of the first housing 21. In other embodiments, as shown in fig. 14b, two through bodies 2121 penetrating the second cavity 212 are preferably further provided on the first housing 21, one through hole 2122 is respectively provided on the two through bodies 2121, one through hole 2122 is used for allowing the impeller shaft 14 of the hydraulic impeller 10 to penetrate, and the other through hole 2122 is used for forming the water drain 232 on the partition 23. When one through body 2121 is provided, the second cavity 212 is actually divided into a cavity of a shape of a Chinese character 'kou' by the through body 2121, and thus the water outlet 215 can be provided only along the range of the Chinese character 'kou', and the relative distribution is uneven (as shown in fig. 14 a). When the two penetrating bodies 2121 are separately disposed, the second cavity 212 is separated into a zigzag cavity by the two penetrating bodies 2121, and compared with the zigzag cavity, one more middle water flow channel is provided, so that the distribution of the water outlet holes 215 can be more uniform (as shown in fig. 14 b), and the spray water can be more uniform. Of course, the number of the through bodies 2121 is not limited to one or two, but may be plural, and the number of the through bodies 2121 is not limited to the present invention, as long as the through bodies 2121 can reduce the deformation of the housing and ensure that the water flow can be uniformly distributed in the second cavity 212 and can be uniformly ejected from the water outlet 215.

Further, the first housing 21 has a fastening seat 216 on one side of the second cavity 212 for fastening a working head described below. Therefore, the hydraulic spraying device provided by the embodiment can be used for being matched with an external working head, the working head is connected with the first shell 21 of the hydraulic spraying device through a buckle, the reliability and the firmness of connection can be ensured, and in addition, different working heads can be easily detached and replaced through a buckle connection mode.

As shown in fig. 9, the hydraulic sprinkler 20 further comprises a handle 26 connected to the first housing 21, the handle 26 extending substantially in the radial direction of the hydraulic impeller 10, but it should not be understood that it can only extend in the radial direction, in practice, as long as it does not extend in the axial direction perpendicular to the radial direction. The handle 26 preferably includes a hollow passage 261 with both ends open, one end of the hollow passage 261 being connected with the water inlet hole and the other end being adapted to be connected with an external water supply end, so that the hollow passage 261 can be used as a water inlet pipe in practice, and is simple in structure. Here, the handle 26 is preferably composed of one or more connection sections, each of which is provided at both ends with a coupling portion that is matched with each other, the connection sections being used alone or for a plurality of connection sections that are coupled with each other for extension. In particular, when it is required for space constraint, the handle 26 may be constituted by only one connecting section, which is connected to the first housing 21 by one connecting portion. When desired for use in elongated applications, the handle 26 may be formed from a plurality of connecting segments connected to one another by mating connectors. Preferably, the connecting part is a threaded section or a clamping section, for example, a threaded section is adopted, one end of each connecting section is provided with an external thread, and the other end of each connecting section is provided with an internal thread matched with the external thread, so that the connecting section and the connecting section can be mutually matched and connected for use, obviously, the segmented handle can cope with more use conditions, can be lengthened or shortened at any time, and is more convenient to use. More preferably, the two ends of the connecting section are provided with internal and external threads which are matched with each other, so that a plurality of connecting sections can be conveniently and firmly mutually connected and also can be conveniently connected with the water supply end, and particularly, the G1/2 threads can be adopted, and can be conveniently connected with a common shower pipe for use.

Optionally, the water inlet 214 is rectangular, the width W of the water inlet 214 is 0.5-20 mm, the length L of the water inlet is 2-20 mm, the effective depth td of the water inlet is 1-30mm, when the size of the water inlet 214 is within the above ranges, the water flow can be limited to a bundle of rectangular water flow matched with the teeth 12 of the hydraulic impeller after leaving the water inlet 214, the rectangular water flow has higher efficiency when driving the hydraulic impeller 10, and in addition, the cross section area of the water inlet 214 is preferably smaller than the cross section area of the water inlet pipeline, so that the flow speed of the water flow after flowing into the water inlet 214 from the water inlet pipeline can be accelerated, and the rotation efficiency of the hydraulic impeller 10 is higher. Here, since the axis of the water inlet 214 is not perpendicular to the inner wall of the first cavity 211, the opening of the water inlet 214 in the first cavity 211 is actually an oblique opening with respect to the axis of the water inlet 214, and the effective depth td refers to the shortest distance between the edge of the opening of the first cavity 211 and the connection between the water inlet 214 and the hollow channel 261, as shown in fig. 13. More preferably, the width W of the inlet hole 214 is 1.81mm, the length L is 6.88mm, and the effective depth td is 3.0mm, and the matched hydraulic impeller 10 is of a medium scale, and can be used in a hand shower or the like.

Referring to fig. 16a to 22, an embodiment of the present invention further provides a working head 30, where the working head 30 is configured to be used with the hydraulic spraying device 20 provided in this embodiment, the working head 30 includes a working portion 31 and a transmission portion 32 connected to the working portion 31, and the transmission portion 32 is configured to be connected to the hydraulic impeller 10 and is configured to convert a rotational motion of the hydraulic impeller 10 into a motion mode of the working portion 31, such as a radial reciprocating motion, a knocking, a single-point rotation, a multi-point rotation, and so on, so that the working portion 31 works by the corresponding motion mode.

In the first embodiment, as shown in fig. 18, the transmission part 32 includes two moving frames 322, two rails 323, a bevel gear 324, and an eccentric shaft 325. The eccentric shaft 325 has bevel teeth and meshes with a bevel gear 324, and the gear 324 is coaxially connected with the impeller shaft 14 of the hydro-impeller 10 for converting the rotational movement of the hydro-impeller 10 into the rotational movement of the eccentric shaft 325. The eccentric shaft 325 further has two eccentric wheels eccentrically disposed with respect to the axis thereof, the moving frame 322 has a rectangular inner frame, at least two opposite sides of the inner frame are circumscribed with the eccentric wheels, and the lengths of the two opposite sides are not less than twice the sum of the eccentric distance and the diameter of the eccentric wheels. In particular, the moving frame 322 has a rectangular inner frame, which is not limited to a narrow rectangular shape, but may be a rounded rectangle, or even a capsule shape, that is, two opposite sides are parallel, and two semicircular shapes are provided at the other two sides. These shapes can be considered as broad rectangles, which all achieve the same result. The two moving frames 322 are respectively sleeved on one eccentric wheel and are used for converting the rotation motion of the eccentric shaft 325 into the reciprocating motion of the moving frames 322 along the axial direction of the impeller shaft 14. Furthermore, two of the moving frames 322 are each provided on one of the rails 323 for reciprocating within an area defined by the rails 323. The working part 31 is connected to two of the moving frames 322 to drive the working part 31 to move synchronously with the moving frames 322. The cleaning of the object is here achieved by a reciprocating movement in the axial direction of the hydro-impeller 10, which movement is suitable for tapping and can be used for massaging and cleaning the skin. Alternatively, the moving frame 322, the eccentric wheel and the rail 323 may be one, and the working portion 31 is only connected to the moving frame 322, which may achieve a similar effect, so the number of the moving frame 322, the eccentric wheel and the rail 323 is not limited in the present invention.

Further, the working head further includes a second housing 33 and a coupling shaft 34; the second housing 33 is configured to be detachably connected to the first housing 21; the coupling shaft 34 is disposed in the second housing 33 in a penetrating manner, and has one end extending out of the second housing 33 and being connected to the hydraulic impeller 10, and the other end being connected to the transmission portion 32. Preferably, the second housing 33 is engaged with the engaging seat 216 on the first housing 21 through the engaging button 331, specifically, after the engaging button 331 of the second housing 33 enters the engaging seat 216, the two are engaged by rotating the working head 30 by a certain angle, in particular, the engaging button 331 is a one-way screw-in type engaging button, and the rotating angle of the working head 30 is preferably consistent with the rotating direction of the hydraulic impeller 10, so that the working head 30 is further screwed in the process of continuously rotating the hydraulic impeller 10, and the two are tightly combined without being separated.

Further, referring to fig. 16 a-16 c, in combination with fig. 18, one end of the coupling shaft 34 is configured to be coaxially connected to the impeller shaft 14, and the other end is configured to be eccentrically connected to the eccentric 321. The end of the coupling shaft 34 for connection to the impeller shaft 14 preferably has a polygonal interior cavity 341, which cavity 341 is blind and is intended to cooperate with the prismatic impeller shaft 14. Preferably, both the coupling shaft 34 and the impeller shaft 14 are hexagonal. In addition, the coupling shaft 34 has a second coupling portion 342 with a saw-tooth shape at one end of the inner cavity 341, and can be matched with the first coupling portion 141 on the impeller shaft 14, and the first coupling portion 141 with a pyramid or a prismatic table shape is pushed by the second coupling portion 342 with a saw-tooth shape, so that the edges of the coupling shaft 34 and the impeller shaft 14 are automatically aligned, and the use is more convenient. Specifically, when the working head 30 is fastened to the fastening seat 216 by the fastening 331, the working head 30 and the hydraulic spraying device 20 have a relatively fixed angle, and at this time, the hexagonal coupling shaft 34 and the impeller shaft 14 are not necessarily at the same angle, and at this time, the hexagonal coupling shaft 34 and the impeller shaft 14 are automatically aligned by the driving of the serrated step of the second coupling portion 342, so that the hexagonal coupling shaft 34 and the impeller shaft 14 are sleeved and combined, and a quick positioning connection can be achieved.

Still further, the working portion is of a 31-layered construction, having a support portion 311 and a contact portion 312 provided on the support portion 311, the support portion 311 being made of an elastic material, the contact portion 312 being made of a flexible material. The contact portion 312 is for contacting a work object. In one embodiment, the contact portion 312 wraps around the support portion 311, or the contact portion 312 is disposed in parallel with the support portion 311. Because the hydraulic spraying device has higher water energy utilization efficiency, for example, when tap water of an urban water supply network is used as a water supply end, the rotating speed of the hydraulic impeller is considerable, which can reach thousands of revolutions per minute, and when the working head matched with the hydraulic spraying device is used for cleaning, the hydraulic spraying device also has the same high rotating speed, so that the material of the working part is correspondingly selected to be difficult to deform but has soft surface, and therefore, the elastic material is selected to be used as a substrate (the supporting part 311), and the flexible body material is selected to be used as a contact surface (the contact part 312) contacting with a working object, so that the requirements can be met. Preferably, the elastic material is one or more of a combination of a sewn textile, polyurethane and rubber, wherein the sewn textile refers to a product obtained by folding and sewing the textile with threads; the flexible body is one or two of sponge and textile, wherein the textile such as silk or flannelette has the characteristic of being smoother and softer. For example, when the cleaning object is skin, compared with a sponge, the silk surface can reduce the friction effect caused by adhesion, and can also reduce the resistance, so that the skin is cleaned more gently, and the skin is prevented from being scratched. Of course, similar textiles may be used, and the invention is not limited in this regard. Alternatively, the contact portion 312 is wrapped around the supporting portion 311, so that the supporting force is provided by the supporting portion 311, so that the contact portion 312 can better contact the surface of the work object. Alternatively, the supporting portion 311 and the contact portion 312 are not limited to be made of two different materials, but the same material may be made by different molding methods, for example, the supporting portion 311 and the contact portion 312 are made of a sponge, the surface of the sponge is made into a flexible and compact smooth surface by heat treatment, the surface is used as the contact portion, and the sponge in the inner portion is used as the supporting portion, so that the advantages of the elasticity of the sponge and the small friction resistance caused by the smooth surface can be achieved. For example, the same fleece may be used, a part of the fleece may be folded in multiple layers, the other part may be a plurality of U-shaped free ends, the stitched part may have a certain elasticity and supporting ability as the supporting part 311, and the non-stitched part may be relatively soft and may be used as the contact part 312, as shown in fig. 17, and at this time, the contact part 312 and the supporting part 311 are arranged in parallel. Of course, the contact portion 312 is not limited to being wrapped around the support portion 311 or being juxtaposed with the support portion 311, and may be adhered to a part of the surface of the support portion 311, and the invention is not limited thereto. Optionally, the working portion 31 further preferably has a bottom plate, which can be connected to the supporting portion 311, for increasing the strength of the entire working portion 31 and fixing the working portion 31.

In a second embodiment, as shown in fig. 19, the transmission part 32 includes an eccentric 321, a moving frame 322 and a track 323, wherein the eccentric 321 is eccentrically disposed with respect to the impeller shaft 14 of the hydraulic impeller, the moving frame 322 has a rectangular inner frame, at least two opposite sides of the inner frame are circumscribed with the eccentric 321, and the length of the two opposite sides is not less than twice the sum of the eccentric distance and the diameter of the eccentric. The moving frame 322 has a rectangular inner frame, which is also referred to as a generalized rectangle, and is not described herein in detail with reference to the first embodiment. The moving frame 322 is sleeved on the eccentric wheel 321 and is used for converting the rotation movement of the impeller shaft 14 into the reciprocating movement of the moving frame 322 along the radial direction of the impeller shaft 14. The moving frame 322 is disposed on the rail 323 for reciprocating within an area defined by the rail 323. The working part 31 is respectively connected with the moving frame 322 and the eccentric wheel 321, and is configured to convert the rotation motion of the hydraulic impeller 10 into the radial reciprocating motion along the hydraulic impeller, and drive the moving frame 322 to reciprocate along the radial direction, where the object is cleaned by the radial reciprocating motion, and the moving mode is suitable for cleaning square surfaces, has a good cleaning effect on some corner parts, and can complete the cleaning work without dead angles. Further, the side of the rail 323 remote from the moving frame 322 is provided with a second housing 33, and the second housing 33 is preferably detachably connected to the first housing 21. The specific construction is similar to that of the embodiment, and will not be described again.

As shown in fig. 20, in the third embodiment, the transmission portion 32 includes a track, a rotor 326, a knocking block 327, two track rings 3231, and a fixing portion 3232, where the two track rings 3231 each have end surfaces with concave-convex curved surfaces connected end to end, the fixing portion 3232 is respectively connected to the two track rings 3231, and is used for fixing the relative positions of the two track rings 3231, and the fixing portion 3232 is disposed on the track, and is used for performing a reciprocating motion in an area defined by the track. Here, a rail is preferably provided on the inner wall of the second housing 33 in the axial direction of the impeller shaft 14, and at the same time, the fixing portion 3232 has a groove or protrusion matching the rail, so that the fixing portion 3232 and the two rail rings 3231 fixed thereto can reciprocate along the axial direction of the impeller shaft 14 together along the rail. Further, there is a gap between the two orbital rings 3231. Preferably, the securing portion 3232 may be a track sleeve that may secure the outer portions Zhou Kagu of the two track rings 3231 and define a gap between the two track rings 3231. The rotor 326 is coaxially coupled to the impeller shaft 14 of the hydro impeller for synchronous rotation therewith. The rotor 326 has a protruding portion, which is disposed in a gap between the two rail rings 3231, and is used to convert the rotational motion of the rotor 326 into the reciprocating motion of the striking block 327 along the axial direction of the impeller shaft through the end surface of the concave-convex curved surface shape connected end to end of the rail ring 3213, preferably, the protruding portion may be spherical or club-shaped, and the diameter of the protruding portion matches with the gap between the two rail rings 3231. The end surfaces of the track rings 3231 are preferably concave-convex curved surfaces connected end to end, the concave-convex curved surfaces refer to smooth curved surfaces with high and low fluctuation on the end surfaces of the track rings 3231, the concave-convex surfaces of the two track rings 3231 are preferably matched with each other, that is, the two concave-convex curved surfaces are parallel, more preferably, the concave-convex curved surfaces can be sine function curved surfaces, the concave-convex surfaces are periodically connected end to end, so when the rotor 326 rotates, the convex parts of the rotor move along the gaps of the concave-convex curved surfaces to drive the knocking blocks 327 to reciprocate along the axial direction of the impeller shaft 14, and the knocking blocks 327 are respectively connected with the rotor 326 and the working parts 31 to drive the working parts 31 to reciprocate along the axial direction of the impeller shaft 14. The movement mode is suitable for knocking massage and can be used for massaging skin.

As shown in fig. 21, in the fourth embodiment, the transmission portion 32 includes a plurality of gears 329 that are sequentially meshed, and axes of the plurality of gears 329 are parallel to each other. One of the gears 329 is coaxially connected to the impeller shaft 14 of the hydraulic impeller. For converting the rotational movement of the impeller shaft 14 into rotational movement of a plurality of the gears 329. The working part 31 has a plurality of sub-working parts, and is connected to one of the gears 329, respectively, for driving the plurality of sub-working parts to rotate by the rotational movement of the plurality of gears 329. The inventors found that when the diameter of one working portion is large, the peripheral linear velocity thereof is quite large, which is unsafe for cleaning, and that when the working portion is moved, a wide range is a repeated cleaning, which is not efficient. In addition, driving a large working section requires relatively high energy, and accordingly, requires an increase in water pressure or water flow rate, thus wasting relatively water. In the working head provided by the embodiment, a plurality of rotary sub-working parts are arranged in a straight line, so that when the working head is used, the cleaning of one area is less repeated, and the efficiency is higher. Therefore, the movement mode is suitable for cleaning skin, and preferably, the gears 329 meshed in sequence can make opposite rotation movement, and the sub-working parts rotating in opposite directions also have the squeezing massage effect.

In the fifth embodiment, as shown in fig. 22, the transmission portion 32 includes a transmission shaft 328, and one end of the transmission shaft 328 is coaxially disposed with the impeller shaft 14 of the hydro-impeller, and the other end is connected to the working portion 31 for driving the working portion 31 in a rotational motion. Preferably, in this embodiment, the material of the supporting portion 311 is preferably rubber, the material of the contact portion is preferably sponge or flannelette, and the working head 20 can be used for cleaning fine parts such as finger joints or tile joints.

In addition, in the present embodiment, the second housing 33 further includes a bracket 332, and the bracket 332 is connected to the second housing 33, so as to define the position of the transmission shaft 328.

Finally, the embodiment of the invention also provides a hydraulic working device, which comprises the hydraulic spraying device 20 and the working head 30, wherein the hydraulic spraying device 20 is connected with the working head 30, and the hydraulic spraying device 20 is used for converting water flow into power to be provided for the working head 30 and driving the working head 30 to move. In particular, the hydraulic working device may have a variety of uses, for example, as an oral cleaner, a shower massage device, or a floor scrubber, and the like, with specific functions including, but not limited to, cleaning, massaging, and entertainment.

Preferably, the hydraulic sprinkler 20 is also capable of spraying water to the surface of the external work object to lubricate or clean the surface of the external work object by using the water flow after the impeller is driven to rotate, thereby making the work of the work head 30 more efficient.

It should be noted that, the components of the transmission part according to the present invention include, but are not limited to, the above-mentioned combination of the components of the transmission part is not limited to, and the movement modes of the working part, such as reciprocation, knocking, rotation, vibration, etc., and the present invention is not limited to, and any similar movement modes formed by using the transmission part formed by similar components and different combinations of the components of the transmission part are within the scope of the present invention.

The above description is only illustrative of the preferred embodiments of the present invention and is not intended to limit the scope of the present invention, and any alterations and modifications made by those skilled in the art based on the above disclosure shall fall within the scope of the appended claims.

Claims

1. The utility model provides a hydraulic impeller, its characterized in that includes cylindrical impeller body, on the outer peripheral face of impeller body along circumference evenly distributed have a plurality of tooth leaves, wherein:

The tooth blade is provided with a first face, a second face and a third face which are arranged in a sharing way; the first surface is matched with the outer peripheral surface of the impeller body; the second surface and the third surface are respectively connected with two opposite sides of the first surface along the circumferential direction; the second surface is a water facing surface and has a first angle relative to the radial direction of the impeller body, and the first angle is 165-195 degrees; the third surface is a back surface and is used for being consistent with the water flow direction;

the hydraulic impeller further comprises two cover plates coaxially arranged with the impeller body, the tooth blades are further provided with a fourth surface and a fifth surface which are arranged in parallel, the fourth surface and the fifth surface are respectively connected with two opposite sides of the first surface along the axial direction, the fourth surface and the fifth surface are respectively aligned with two ends of the impeller body, and the two cover plates are respectively connected with the fourth surface and the fifth surface of a plurality of tooth blades;

the second face and the third face are perpendicular to the fourth face and the fifth face;

The thickness of the hydraulic impeller is between 2 and 20mm, the outer radius of the impeller body is between 2 and 200mm, the number of the teeth is 15 to 200, the common edge of the second surface and the third surface is parallel to the axis of the impeller body, and the ratio of the vertical distance between the common edge and the outer peripheral surface to the outer radius of the impeller body is between 0.015 and 0.20;

the thickness of the hydraulic impeller is 9.0mm or 11.0mm, the outer radius of the impeller body is 25.60mm or 24.15mm, the number of teeth is 37 or 17, and the ratio of the vertical distance to the outer radius of the impeller body is 0.084 or 0.149;

The hydraulic impeller is used for rotating under the driving of water flow with preset flow rate and preset flow rate, the preset flow rate is between 0.5 and 6.0m/s, and the preset flow rate is between 0.06 and 35.0L/min.

2. The hydraulic impeller of claim 1, further comprising an impeller shaft disposed in the center of the impeller body; at least one end of the impeller shaft is prismatic and penetrates through one cover plate and is used for being connected with an external mechanism, a first combination part used for being connected with the external mechanism is further arranged at one end of the impeller shaft, which is prismatic, and the first combination part is of a chamfering structure consistent with the prismatic.

3. The hydraulic impeller of claim 2, wherein the first angle is 180 °.

4. A hydraulic sprinkler comprising a first housing and a hydraulic impeller according to any one of claims 1-3; the first shell is divided into a first cavity and a second cavity by a separation part, the first cavity is communicated with the second cavity by a communication channel penetrating through the separation part, and a water inlet communicated with the first cavity is also formed in the first shell; the hydraulic impeller is arranged in the first cavity;

5. The hydraulic sprinkler of claim 4, wherein the first chamber is separated from the communication channel by a first baffle, the hydraulic impeller is disposed in a center of the first chamber, one end of the communication channel communicates with the first chamber through a first opening disposed along a circumferential direction of the hydraulic impeller, and the other end communicates with the second chamber through a second opening disposed along an axial direction of the hydraulic impeller, wherein:

6. The hydraulic sprinkler of claim 5, wherein the first cavity and the hydraulic impeller form an annular cavity, and wherein a second baffle is disposed along a portion of the periphery of the hydraulic impeller; the second baffle is arranged at the tail end of the annular inner cavity along the rotation direction of the hydraulic impeller, and at least one part of the second baffle is positioned between the hydraulic impeller and the first baffle and used for further blocking water flow entering the annular inner cavity without being blocked by the first baffle and guiding the water flow to be discharged out of the first shell.

7. The hydraulic sprinkler of claim 6, wherein a side of the partition facing the first cavity is a sloping surface sloping from the center toward the periphery.

8. The hydraulic sprinkler of claim 7, wherein at least one drain hole is provided around the partition.

9. The hydraulic sprinkler of claim 8, wherein at least one of the drain holes is located at an end of the annular cavity in a direction of rotation of the hydraulic impeller and between the second baffle and the first baffle for draining water flowing into the first cavity out of the first housing.

10. The hydraulic sprinkler of claim 5, wherein one end of the first baffle is adjacent to the first opening, one end of the first baffle adjacent to the first opening is further provided with a third baffle, the third baffle is disposed along a radial direction of the hydraulic impeller, one end of the third baffle is connected to the first baffle, and a gap is formed between the other end of the third baffle and an inner wall of the communication channel along the radial direction of the hydraulic impeller.

11. The hydraulic sprinkler of claim 10, wherein the width of the gap decreases, remains the same, or increases from a side distal to the second cavity to a side proximal to the second cavity.

12. The hydraulic sprinkler of claim 10, wherein the third baffle is a cambered surface and/or the third baffle is disposed perpendicular to the partition.

13. The hydraulic sprinkler of claim 4, wherein the first housing further has a first working wall; the first working wall is positioned in the first cavity and covers a part of the periphery of the hydraulic impeller, and one side of the first working wall is adjacent to the water inlet hole and used for guiding water flowing out of the water inlet hole to drive the hydraulic impeller to rotate.

14. The hydraulic sprinkler of claim 13, wherein the communication channel has a second working wall and/or a third working wall; when the connecting channel is provided with a second working wall, the second working wall is arranged along the circumferential direction of the hydraulic impeller, one end of the second working wall is adjacent to the first working wall through a buffer section, and the buffer section is used for buffering and guiding water flow after the water flow flows out of the hydraulic impeller; when the communication channel is provided with a third working wall, the third working wall is arranged along the axial direction of the hydraulic impeller and is arranged on one side of the communication channel away from the second cavity.

15. The hydraulic sprinkler of claim 14, wherein the buffer segment is a straight segment, a curved segment, a straight co-located segment, or a abrupt segment.

16. The hydraulic sprinkler of claim 14 wherein the first working wall is an arcuate surface concentric with the hydraulic impeller; when the connecting channel is provided with a second working wall, the second working wall is a spherical surface, and the normal line of the spherical surface points to the second cavity; when the communication channel has a third working wall, at least a portion of the third working wall extends in a spiral manner from the first cavity toward the second cavity.

17. The hydraulic sprinkler of claim 13, wherein the communication passage has a fifth working wall, the fifth working wall is disposed along an axial direction of the hydraulic impeller and is disposed at a side of the communication passage adjacent to the second cavity, one end of the fifth working wall is connected to the partition, and a slit extending along a circumferential direction of the hydraulic impeller is further formed at a side of the fifth working wall away from the hydraulic impeller; the gap is communicated with the communication channel and the second cavity and is used for enabling water flow entering the communication channel to flow into the second cavity through the gap.

18. The hydraulic sprinkler of claim 4, wherein the first cavity and the second cavity are distributed in an axial direction of the hydraulic impeller.

19. The hydraulic sprinkler of claim 4, wherein the hydraulic impeller includes an impeller shaft disposed at a center of the impeller body, one end of the impeller shaft being connected to one side of the first housing at the first cavity through a bearing, and the other end passing through the partition and being connected to the partition through another bearing.

20. The hydraulic sprinkler of claim 4, wherein the first housing further includes a plurality of water outlet openings in communication with the second chamber for discharging water from the second chamber to the first housing.

21. The hydraulic sprinkler of claim 4, wherein the first housing further includes a through body extending through the second chamber, and two through holes are formed in the through body, one through hole being for allowing the impeller shaft of the hydraulic impeller to pass therethrough, and the other through hole being for forming the drain hole in the partition.

22. The hydraulic sprinkler of claim 4, wherein the first housing further includes two through bodies penetrating the second chamber, each of the two through bodies includes a through hole, one through hole is used for allowing the impeller shaft of the hydraulic impeller to pass therethrough, and the other through hole is used for forming the water drain hole in the partition portion.

23. The hydraulic sprinkler of claim 4, wherein the first housing further has a snap seat for engaging an external working head, the snap seat being disposed on a side of the first housing that is located on the second cavity.

24. The hydraulic sprinkler of claim 4, further comprising a handle coupled to the first housing, the handle including a hollow passage having both ends open, one end of the hollow passage being coupled to the inlet port and the other end being coupled to an external water supply.

25. The hydraulic sprinkler of claim 24, wherein the handle is comprised of one or more connection segments, each of the connection segments having mating connection portions at both ends.

26. The hydraulic sprinkler of claim 25, wherein the connection is a threaded section or a snap-fit section.

27. The hydraulic sprinkler of claim 4, wherein the inlet opening is rectangular, the width of the inlet opening is between 0.5 and 20mm, the length of the inlet opening is between 2 and 20mm, and the effective depth of the inlet opening is between 1.0 and 30 mm.

28. The hydraulic sprinkler of claim 27, wherein the inlet opening has a width of 1.81mm, a length of 6.88mm, and an effective depth of 3.0mm.

29. A working head using the hydraulic sprinkler according to claim 4, comprising a working portion and a transmission portion connected to the working portion; the transmission part is used for being connected with the hydraulic impeller and converting the rotation motion of the hydraulic impeller into the motion matched with the working part so as to enable the working part to work through the corresponding motion.

30. A working head according to claim 29, wherein the transmission comprises at least one moving frame, at least one track, a bevel gear and an eccentric shaft; the eccentric shaft is provided with bevel gears and is meshed with the bevel gears; the bevel gear is coaxially connected with the impeller shaft of the hydraulic impeller and is used for converting the rotary motion of the hydraulic impeller into the rotary motion of the eccentric shaft; the eccentric shaft is also provided with at least one eccentric wheel eccentrically arranged with the axis of the eccentric shaft; the moving frame is provided with a rectangular inner frame, at least two opposite edges of the inner frame are circumscribed with the eccentric wheel, and the lengths of the two opposite edges are not less than the sum of the double eccentric distance and the diameter of the eccentric wheel; at least one moving frame is sleeved on one eccentric wheel and used for converting the rotation motion of the eccentric shaft into the reciprocating motion of the moving frame along the axial direction of the impeller shaft; at least one of the motion frames is arranged on one of the rails and is used for reciprocating in the area limited by the rail; the working part is connected with the two moving frames so as to drive the working part to synchronously move with the moving frames.

31. The work head of claim 29, wherein the drive section includes an eccentric, a motion frame, and a track; the eccentric wheel and the impeller shaft of the hydraulic impeller are eccentrically arranged; the moving frame is provided with a rectangular inner frame, at least two opposite edges of the inner frame are circumscribed with the eccentric wheel, and the lengths of the two opposite edges are not less than the sum of the double eccentric distance and the diameter of the eccentric wheel; the moving frame is sleeved on the eccentric wheel and used for converting the rotation motion of the impeller shaft into the reciprocating motion of the moving frame along the radial direction of the impeller shaft; the moving frame is arranged on the track and used for reciprocating in the area limited by the track; the working part is respectively connected with the moving frame and the eccentric wheel and is used for converting the rotation motion of the hydraulic impeller into the reciprocating motion along the radial direction of the hydraulic impeller and driving the moving frame to reciprocate along the radial direction of the impeller shaft.

32. The working head according to claim 29, wherein the transmission part comprises a rail, a rotor, a knocking block, two rail rings and a fixing part, the rail rings are provided with concave-convex curved end surfaces connected end to end, the fixing part is respectively connected with the two rail rings and used for fixing the relative positions of the two rail rings, the fixing part is arranged on the rail and used for reciprocating in an area limited by the rail, and a gap is reserved between the two rail rings; the rotor is coaxially connected with the impeller shaft of the hydraulic impeller and is used for synchronously rotating with the impeller shaft; the rotor is provided with a bulge, and the bulge is arranged in the gap and is used for converting the rotary motion of the rotor into the reciprocating motion of the knocking block along the axial direction of the impeller shaft through the end faces of the concave-convex curved surfaces connected end to end of the track ring; the knocking block is respectively connected with the rotor and the working part and is used for driving the working part to reciprocate along the axial direction of the impeller shaft.

33. A working head according to claim 29 wherein the drive portion comprises a plurality of sequentially intermeshing gears, the axes of the plurality of gears being parallel to one another; one of the gears is coaxially connected with the impeller shaft of the hydraulic impeller and is used for converting the rotation motion of the impeller shaft into the rotation motion of the gears; the working part is provided with a plurality of sub-working parts and is respectively connected with one gear, and the working part is used for driving the plurality of sub-working parts to do rotary motion by the rotary motion of the plurality of gears.

34. A working head according to claim 29, wherein the drive section comprises a drive shaft having one end coaxially connected to the impeller shaft of the hydraulic impeller and the other end connected to the working section for driving the working section in rotational movement.

35. The working head of claim 29, wherein the working portion has a support portion and a contact portion provided on the support portion, the contact portion for contacting a work object; the support portion is made of an elastic material, and the contact portion is made of a flexible material.

36. A working head according to claim 35, wherein the contact portion wraps around the support portion or is juxtaposed with the support portion.

37. The working head of claim 36 wherein the resilient material is one or more of a sponge, a sewn textile, polyurethane, and rubber, and the flexible material is one or both of a sponge and a textile.

38. The working head of claim 37, wherein the working head comprises a second housing and a coupling shaft; the second shell is used for being detachably connected with the first shell; the combining shaft penetrates through the second shell, one end of the combining shaft extends out of the second shell and is used for being connected with the hydraulic impeller, and the other end of the combining shaft is used for being connected with the transmission part.

39. The working head of claim 38 wherein the second housing is adapted to be connected to the first housing by a snap-in, the snap-in being a one-way screw-in snap-in for co-rotating with the direction of rotation of the hydraulic impeller and being connected to the first housing, and/or wherein the coupling shaft has a polygonal inner cavity which is blind and adapted to mate with the impeller shaft of the hydraulic impeller.

40. The working head of claim 39 wherein a second engagement portion is provided on the exterior of the end of the engagement shaft having the lumen, the second engagement portion being serrated and configured to automatically align with the first engagement portion of the impeller shaft for positioning the engagement shaft with the impeller shaft.

41. A hydraulic working device, comprising:

the hydraulic sprinkler according to claim 4; and

The work head of claim 29;

The hydraulic spraying device is connected with the working head and is used for converting water flow into power to be provided for the working head and driving the working head to move.

42. The hydraulic work device of claim 41 wherein the hydraulic spray device is further configured to spray water against an external work object surface.