CN216566684U

CN216566684U - Water pump mechanism and tooth flushing device

Info

Publication number: CN216566684U
Application number: CN202122587620.8U
Authority: CN
Inventors: 蔡静; 黄有坚
Original assignee: Youpuli Dongguan Technology Co ltd
Current assignee: Youpuli Dongguan Technology Co ltd
Priority date: 2021-10-26
Filing date: 2021-10-26
Publication date: 2022-05-20
Anticipated expiration: 2031-10-26

Abstract

The utility model discloses a water pump mechanism, comprising: the pump body assembly comprises a first body, a second body and a piston body, wherein a water suction port for sucking external liquid and a water discharge port for discharging internal liquid are formed in the first body, the second body is connected with the first body, the second body and the first body form a water inlet cavity and a water outlet cavity in a surrounding mode, a sealing element and a one-way valve structure are arranged between the first body and the second body, a waterproof partition strip is arranged on the sealing element and located between the water inlet cavity and the water outlet cavity, the one-way valve structure comprises a water inlet valve and a water outlet valve, the water inlet valve is located in the water inlet cavity, the water outlet valve is located in the water outlet cavity, and the piston body is arranged on one side, away from the first body, of the second body; can prevent that the liquid in the play water cavity from entering into the intake antrum to guarantee the hydraulic stability of output.

Description

Water pump mechanism and tooth flushing device

Technical Field

The utility model relates to the technical field of water pumps, in particular to a water pump mechanism and a tooth flushing device.

Background

A tooth irrigator is an appliance for cleaning teeth by using the impact force of a water column sprayed under a certain pressure. Generally, water is absorbed and sprayed by changing the internal pressure of a piston cavity through repeated deformation of a piston body in a water pump mechanism, and a water inlet channel and a water outlet channel are arranged in the water pump mechanism, so that the entering water can only flow to the piston cavity in a one-way manner and then flow out of the piston cavity, and water pumping is realized.

In the correlation technique, because the tooth ware of dashing need use high-pressure water column when work, so its inside water pumping mechanism needs quick absorption of water and drainage, and simultaneously, pump body subassembly among the water pumping mechanism forms through two subassemblies of first body and second body equipment, when absorbing water, the piston body takes place to deform and leads to the piston chamber to produce the negative pressure of great intensity fast, outside water enters into the piston chamber through the intake antrum in the water pumping mechanism, however, the water in the play water chamber is under the effect of great intensity negative pressure, can pass the clearance between first body and the second body, enter into the intake antrum, seriously influence the hydraulic stability of water pumping mechanism output, thereby the normal use of tooth ware is dashed in the influence.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the utility model provides a water pump mechanism and a tooth flushing device, which can prevent liquid in a water outlet cavity from entering a water inlet cavity, thereby ensuring the stability of output water pressure.

According to a water pump mechanism of an embodiment of a first aspect of the present invention, comprising: the pump body assembly comprises a first body, a second body and a piston body, wherein a water suction port for sucking external liquid and a water discharge port for discharging internal liquid are formed in the first body, the second body is connected with the first body, the second body and the first body are enclosed to form a water inlet cavity and a water outlet cavity, a sealing element and a one-way valve structure are arranged between the first body and the second body, a waterproof partition strip is arranged on the sealing element and positioned between the water inlet cavity and the water outlet cavity, the waterproof partition strip can prevent the liquids in the water inlet cavity and the water outlet cavity from mutually circulating, the sealing element can prevent the liquids in the water inlet cavity and the water outlet cavity from mutually circulating, the one-way valve structure comprises a water inlet valve and a water outlet valve, the water inlet valve is positioned in the water inlet cavity, the water outlet valve is positioned in the water outlet cavity, and the piston body is arranged on one side, away from the first body, of the second body, and a piston cavity is formed between the piston body and the second body in a surrounding manner and is respectively communicated with the water inlet cavity and the water outlet cavity.

The water pump mechanism provided by the embodiment of the utility model at least has the following beneficial effects:

the sealing element is arranged between the first body and the second body, one part of the sealing element is positioned between the water inlet cavity and the water outlet cavity, when water is absorbed, the piston body deforms, high-strength negative pressure is generated in the piston cavity, and liquid in the water outlet cavity cannot penetrate through a gap between the first body and the second body to enter the water inlet cavity under the action of the sealing element, so that the stability of water pressure output from the water outlet is ensured; meanwhile, the sealing element and the one-way valve structure are arranged in a split mode, so that the one-way valve structure can be independently replaced after a worker uses the sealing element and the one-way valve structure for a long time, and the sealing element and the one-way valve structure are required to be replaced.

According to some embodiments of the utility model, a one-way valve is provided at the drain.

According to some embodiments of the utility model, the first body is provided with a first water inlet and a first water outlet, the first water inlet is communicated with the water suction opening, the second body is provided with a second water inlet and a second water outlet, the second water inlet is communicated with the first water inlet and forms a water inlet cavity together in an enclosing manner, and the second water outlet is communicated with the first water outlet and forms a water inlet cavity together in an enclosing manner.

According to some embodiments of the utility model, a positioning column is convexly arranged on the waterproof partition strip, and the check valve structure is clamped in the positioning column.

According to some embodiments of the present invention, the piston further includes a driving device, the driving device is connected to a side of the piston body away from the second body, and the driving device can drive the piston body to elastically deform so as to change a volume in the piston cavity.

According to some embodiments of the utility model, the outer side surface of the first body is provided with a water inlet pipe, and the water suction port is arranged at the outer end of the water inlet pipe.

The tooth flushing device comprises a water pump mechanism.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The utility model is further described with reference to the following figures and examples, in which:

FIG. 1 is a schematic perspective view of a water pump mechanism according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view of the water pump mechanism shown in FIG. 1;

FIG. 3 is a partial cross-sectional view of the pump body assembly shown in FIG. 2;

FIG. 4 is an exploded view of the first body, second body and one-way valve shown in FIG. 1;

fig. 5 is an exploded view of the second body, seal and one-way valve structure shown in fig. 1.

Reference numerals:

100 pump body assembly, 101 water inlet cavity, 102 water outlet cavity, 103 piston cavity, 110 first body, 111 first water inlet hole, 112 first water outlet hole, 113 one-way valve, 114 water inlet pipe, 115 water suction port, 116 water outlet hole, 120 second body, 121 second water inlet hole, 122 second water outlet hole, 130 piston body, 140 sealing element, 141 waterproof parting strip, 142 positioning column, 151 water inlet valve, 152 water outlet valve, 153 mounting hole,

200 drive the device.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, the meaning of a plurality is one or more, the meaning of a plurality is two or more, and the above, below, exceeding, etc. are understood as excluding the present numbers, and the above, below, within, etc. are understood as including the present numbers. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.

In the description of the present invention, reference to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

A water pump mechanism according to an embodiment of the present invention is described below with reference to fig. 1 to 5.

As shown in fig. 1 to 5, the water pump mechanism according to the embodiment of the present invention includes a pump body assembly 100.

The pump body assembly 100 comprises a first body 110, a second body 120 and a piston body 130, wherein the first body 110 is provided with a water suction port 115 for sucking external liquid and a water discharge port 116 for discharging internal liquid, the second body 120 is connected with the first body 110, the second body 120 and the first body 110 form an inlet cavity 101 and an outlet cavity 102 in a surrounding manner, a sealing member 140 and a one-way valve structure are arranged between the first body 110 and the second body 120, the sealing member 140 is provided with a waterproof partition strip 141, the waterproof partition strip 141 is positioned between the inlet cavity 101 and the outlet cavity 102, the waterproof partition strip 141 can prevent liquid in the inlet cavity 101 and the outlet cavity 102 from mutually circulating, the one-way valve structure comprises an inlet valve 151 and an outlet valve 152, the inlet valve 151 is positioned in the inlet cavity 101, the outlet valve 152 is positioned in the outlet cavity 102, the piston body 130 is arranged on a side of the second body 120 away from the first body 110, the piston body 130 and the second body 120 form a surrounding manner of a piston cavity 103, the piston chamber 103 communicates with the inlet chamber 101 and the outlet chamber 102, respectively.

For example, as shown in fig. 1 to 5, the pump assembly is mainly used for pumping external water to a target position, the pump assembly may include a first body 110, a second body 120 and a piston body 130, the first body 110 is provided with a water suction port 115 for sucking external liquid and a water discharge port 116 for discharging internal liquid, the second body 120 may be connected to the first body 110, the second body 120 may form an inlet chamber 101 and an outlet chamber 102 with the first body 110, a sealing member 140 and a one-way valve structure are provided between the first body 110 and the second body 120, the sealing member 140 is mainly used for preventing the liquids in the inlet chamber 101 and the outlet chamber 102 from flowing through each other, and also preventing the liquids in the inlet chamber 101 and the outlet chamber 102 from flowing out from the outside of the pumping mechanism, the one-way valve structure includes an inlet valve 151 and an outlet valve 152, the inlet valve 151 is located in the inlet chamber 101, the inlet valve 151 is mainly used for preventing the liquid in the inlet chamber 101 from flowing back to the water suction port 115, the water outlet valve 152 is located in the water outlet cavity 102, the water outlet valve 152 is mainly used for preventing liquid in the water outlet cavity 102 from flowing back towards a direction away from the water outlet 116, the piston body 130 is arranged on a side of the second body 120 away from the first body 110, a piston cavity 103 is formed between the piston body 130 and the second body 120 in an enclosing manner, the piston cavity 103 is respectively communicated with the water inlet cavity 101 and the water outlet cavity 102, when water is required to be absorbed, the middle part of the piston body 130 is deformed towards a direction away from the first body 110, so that negative pressure is formed in the piston cavity 103, then external liquid enters from the water absorption port 115 and enters the piston cavity 103 through the water inlet cavity 101, when water is required to be discharged, the middle part of the piston body 130 is deformed towards a direction close to the first body 110, so that the pressure of the piston cavity 103 is increased, and then the liquid in the piston cavity 103 passes through the water outlet cavity 102 and is discharged from the water outlet 116.

In the embodiment, the check valve structure is a flat structure, the inlet valve 151 and the outlet valve 152 are an integral structure, the middle of the check valve structure is additionally arranged between the first body 110 and the second body 120, meanwhile, the water inlet valve 151 and the water outlet valve 152 can swing up and down along with the pressure change in the piston cavity 103, when water is sucked, negative pressure is formed in the piston cavity 103, then the inlet valve 151 swings downwards, the outlet valve 152 is closely attached to the second outlet hole 122, then, the liquid in the inlet chamber 101 can only enter the piston chamber through the first inlet hole 111 and the second inlet hole 121, and when the water is discharged, the pressure in the piston chamber 103 is increased, then the outlet valve 152 swings upward, the inlet valve 152 is tightly attached to the first inlet hole 111, the liquid in the piston chamber 103 can then be discharged from the discharge outlet 116 only through the second outlet hole 122 and the first outlet hole 112, thereby achieving a one-way flow of the liquid in the inlet chamber 101 and the outlet chamber 102.

It should be understood that, in addition to the structure of the above-mentioned embodiment, the inlet valve 151 and the outlet valve 152 may adopt a structure of a sealing ball in other embodiments, and the main structure is to replace the sheet-shaped inlet valve in this embodiment with an inlet valve ball, and a spring is disposed between the inlet valve ball and the second body 120, so that the inlet valve ball can elastically and movably abut against the first body 110, and replace the sheet-shaped outlet valve in this embodiment with an outlet valve ball, and a spring is disposed between the outlet valve ball and the first body 110, so that the outlet valve ball can elastically and movably abut against the second body 120, and the inlet valve 151 and the outlet valve 152 in the ball-shaped structure work in the same principle as the inlet valve 151 and the outlet valve in the flat-shaped structure.

Specifically, by arranging the sealing element 140 between the first body 110 and the second body 120, and a part of the sealing element 140 is located between the water inlet cavity 101 and the water outlet cavity 102, when water is sucked, the piston body 130 is deformed, a strong negative pressure is generated in the piston cavity 103, and the liquid in the water outlet cavity 102 cannot pass through the gap between the first body 110 and the second body 120 to enter the water inlet cavity 101 under the action of the sealing element 140, so as to ensure the stability of the water pressure output from the water outlet 116; meanwhile, the sealing element 140 and the one-way valve structure are arranged in a split mode, and after the sealing element is used for a long time, workers can replace the one-way valve structure independently without replacing the sealing element 140 and the one-way valve structure.

In some embodiments of the present invention, a one-way valve 113 is disposed at the drain opening 116. For example, as shown in fig. 1 to 4, in the present embodiment, the check valve 113 is a duckbill valve, wherein the duckbill valve has low cost, convenient installation, flexible installation manner, and repairability. Meanwhile, the method has the advantages of (1) maintaining higher jet velocity, (2) being beneficial to flushing a discharge pipe, (3) obtaining higher dilution under certain conditions, and (4) being not easy to corrode. By providing the one-way valve 113 at the drain outlet 116, liquid or foreign matter outside the drain outlet 116 can be prevented from entering the drain outlet 102 through the drain outlet 116 without affecting the drainage of liquid in the drain outlet 102 from the drain outlet 116.

In some embodiments of the present invention, the first body 110 is provided with a first inlet hole 111 and a first outlet hole 112, the first inlet hole 111 is communicated with the suction opening 115, the second body 120 is provided with a second inlet hole 121 and a second outlet hole 122, the second inlet hole 121 is communicated with the first inlet hole 111 and forms the inlet chamber 101 together, and the second outlet hole 122 is communicated with the first outlet hole 112 and forms the inlet chamber 101 together. For example, as shown in fig. 2 to 5, in this embodiment, during water suction, negative pressure is formed in the piston cavity 103, external liquid firstly enters the water inlet cavity 101 from the water suction port 115, then the liquid firstly passes through the first water inlet hole 111 and then enters the piston cavity 103 through the second water inlet hole 121, when water is discharged, pressure is formed in the piston cavity 103, the liquid in the piston cavity 103 firstly passes through the second water outlet hole 122 and then passes through the first water outlet hole 112 and is discharged from the water discharge port 116, by providing the first water inlet hole 111 and the first water outlet hole 112 on the first body 110, providing the second water inlet hole 121 and the second water outlet hole 122 on the second body 120, and providing the water outlet valve 151 between the first water inlet hole 111 and the second water inlet hole 121, providing the water outlet valve 152 between the first water outlet hole 112 and the second water outlet hole 122, so that the first water inlet hole 111, the second water inlet hole 121 and the water inlet valve 151 can form a one-way valve 113 for water inlet, the first outlet opening 112, the second outlet opening 122 and the outlet valve 152 can form a one-way valve 113 for draining water.

In some embodiments of the present invention, the sealing member 140 is provided with a waterproof partition 141, and the waterproof partition 141 is located between the inlet chamber 101 and the outlet chamber 102. For example, as shown in fig. 3 to 5, in the present embodiment, the sealing member 140 includes a sealing ring and a waterproof partition 141, the sealing ring is integrally formed with the waterproof partition 141, wherein the sealing ring is used for preventing the liquid in the inlet chamber 101 and the outlet chamber 102 from flowing out from the outer sides of the first body 110 and the second body 120, and the waterproof partition 141 is located between the inlet chamber 101 and the outlet chamber 102 and is mainly used for preventing the liquid between the two chambers from flowing through each other and affecting the stability of the water pressure of the discharged liquid.

In some embodiments of the present invention, a positioning column 142 is protruded from the waterproof partition strip 141, and the check valve structure is engaged in the positioning column 142. For example, as shown in fig. 4 and 5, in the present embodiment, the one-way valve structure is provided with a mounting hole 153, when assembling, a worker first engages the sealing member 140 on the second body 120, then engages the mounting hole 153 on the one-way valve structure in the positioning post 142, and then uses a fastening member to mount the first body 110 and the second body 120 together.

In some embodiments of the present invention, a driving device is further included, and the driving device is connected to a side of the piston body 130 away from the second body 120, and the driving device can drive the piston body 130 to elastically deform, so as to change the volume in the piston cavity 103. For example, as shown in fig. 2, the driving device is provided with a connecting end, the connecting end is connected to a side of the piston body 130 far away from the second body 120, and the connecting end of the driving device can drive the piston body 130 to move back and forth in a direction far away from or close to the first body 110 to change the volume in the piston cavity 103, thereby pumping water.

In some embodiments of the present invention, the outer side of the first body 110 is provided with a water inlet pipe 114, and the water suction port 115 is disposed at an outer end of the water inlet pipe 114. For example, as shown in fig. 1, 2 and 4, a water inlet pipe 114 is disposed on an outer side surface of the first body 110, a water suction port 115 is disposed at an outer end of the water inlet pipe 114, before the water inlet pipe is used, a worker firstly communicates the water suction port 115 with an external liquid source, and then the external liquid enters the water inlet chamber 101 through the water inlet pipe 114.

The tooth flushing device (not shown) comprises the water pump mechanism. The water inlet pipe 114 has a water inlet 115 connected to a water supply source for supplying water, and a water outlet 116 connected to a nozzle of the tooth flushing device for discharging water to form a water column for flushing oral cavity. Can know by the aforesaid, the water pump mechanism of this embodiment can provide stable hydraulic water column for the shower nozzle, helps optimizing the washing effect of towards the tooth ware, improves user experience.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention. Furthermore, the embodiments of the present invention and the features of the embodiments may be combined with each other without conflict.

Claims

1. Water pump mechanism, its characterized in that includes:

the pump body assembly comprises a first body, a second body and a piston body, wherein a water suction port for sucking external liquid and a water discharge port for discharging internal liquid are formed in the first body, the second body is connected with the first body, the second body and the first body are enclosed to form a water inlet cavity and a water outlet cavity, a sealing element and a one-way valve structure are arranged between the first body and the second body, a waterproof partition strip is arranged on the sealing element and is positioned between the water inlet cavity and the water outlet cavity, the waterproof partition strip can prevent the liquids in the water inlet cavity and the water outlet cavity from mutually circulating, the one-way valve structure comprises a water inlet valve and a water outlet valve, the water inlet valve is positioned in the water inlet cavity, the water outlet valve is positioned in the water outlet cavity, the piston body is arranged on one side of the second body far away from the first body, and a piston cavity is formed between the piston body and the second body, the piston cavity is respectively communicated with the water inlet cavity and the water outlet cavity.

2. The pump mechanism as claimed in claim 1, wherein a one-way valve is provided at the drain outlet.

3. The pumping mechanism as defined in claim 1, wherein the first body defines a first inlet opening and a first outlet opening, the first inlet opening communicating with the suction opening, the second body defines a second inlet opening and a second outlet opening, the second inlet opening communicating with the first inlet opening and collectively defining an inlet chamber, the second outlet opening communicating with the first outlet opening and collectively defining an inlet chamber.

4. The pump mechanism as claimed in claim 1, wherein the waterproof partition bar is provided with a positioning post protruding therefrom, and the check valve structure is engaged with the positioning post.

5. The water pump mechanism as claimed in claim 1, further comprising a driving device, wherein the driving device is connected to a side of the piston body away from the second body, and the driving device can drive the piston body to elastically deform so as to change the volume in the piston cavity.

6. The pump mechanism as claimed in claim 1, wherein the first body has a water inlet pipe on an outer side thereof, and the water inlet is disposed at an outer end of the water inlet pipe.

7. Towards tooth ware, its characterized in that includes:

the pump mechanism as claimed in any one of claims 1 to 6.