CN111607933B

CN111607933B - Drum washing machine

Info

Publication number: CN111607933B
Application number: CN201910136410.1A
Authority: CN
Inventors: 赵志强; 吕佩师; 许升
Original assignee: Qingdao Haier Washing Electric Appliance Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Washing Electric Appliance Co Ltd; Haier Smart Home Co Ltd
Priority date: 2019-02-25
Filing date: 2019-02-25
Publication date: 2022-04-15
Anticipated expiration: 2039-02-25
Also published as: CN111607933A

Abstract

The invention discloses a drum washing machine, comprising a shell; an inner cylinder disposed inside the housing; the water inlet structure is arranged on the shell and introduces water flow provided by an external water supply system into the shell of the washing machine; the water inlet is arranged on the inner cylinder and communicated with the inside and the outside of the inner cylinder; and the water inlet flow channel guides water flow introduced by the water inlet structure to a nozzle arranged with a gap with the water inlet, and the water flow ejected from the nozzle crosses the gap to be ejected to the water inlet and conveyed into the inner barrel. The invention solves the problem of dirt accumulation between the outer wall of the inner cylinder and the inner wall of the outer cylinder, and realizes water inflow to the inner part of the imperforate inner cylinder under the condition of not influencing the rotation of the inner cylinder.

Description

Drum washing machine

Technical Field

The invention belongs to the field of household appliances, and particularly relates to a drum washing machine.

Background

The existing roller washing machine generally comprises an inner barrel and an outer barrel which are mutually sleeved, wherein the outer barrel is a water containing barrel, the inner barrel is used for containing clothes and is used for rolling and washing the clothes through rotating the inner barrel, a gap is reserved between the inner barrel and the outer barrel, dirt can be accumulated after the washing machine is used for a period of time, the inner barrel outer wall and the outer barrel inner wall cannot be directly washed due to the mutual sleeving of the inner barrel and the outer barrel, bacteria in the washing machine are increased, the health of a user is influenced, and the user can only wash the inner barrel outer wall and the outer barrel inner wall by disassembling the inner barrel.

In order to solve the problems, the inner barrel of the drum washing machine is designed into the inner barrel with a non-porous structure, so that water holding and washing can be realized, the non-porous washing machine solves the problem of dirt accumulation between the interlayers of the inner barrel and the outer barrel, and simultaneously, the waste of water resources is reduced. However, the problem of water inlet of the non-porous inner cylinder is difficult, and how to realize efficient and reliable water inlet makes the problem to be solved urgently.

The present invention has been made in view of this situation.

Disclosure of Invention

The present invention is directed to overcome the disadvantages of the prior art, and provides a drum washing machine, which is designed to solve the problems of dirt accumulation between the inner wall of the inner drum and the inner wall of the outer drum of the drum washing machine and difficulty in cleaning, and is also designed to solve the problem of water inflow of the drum washing machine.

In order to solve the technical problems, the invention adopts the technical scheme that:

a drum washing machine includes a housing; an inner cylinder disposed inside the housing; the water inlet structure is arranged on the shell and introduces water flow provided by an external water supply system into the shell of the washing machine; the water inlet is arranged on the inner cylinder and communicated with the inside and the outside of the inner cylinder; and the water inlet flow channel guides water flow introduced by the water inlet structure to a nozzle arranged with a gap with the water inlet, and the water flow ejected from the nozzle crosses the gap to be ejected to the water inlet and conveyed into the inner barrel.

Furthermore, the water inlet end of the water inlet flow channel is communicated with the water inlet structure, the water outlet end of the water inlet flow channel penetrates through the outer cylinder wall, a nozzle is formed in one side, facing the inner cylinder, of the outer cylinder wall, and the nozzle and the water inlet are arranged in an aligned mode at intervals.

Furthermore, a supercharging device for increasing the pressure of flowing water is arranged on the water inlet channel, so that the nozzle sprays the water outwards.

Further, drum type washing machine includes the urceolus, and the inner tube suit is in the inside of urceolus, and rotatory for the urceolus, and the central axis level of inner tube and urceolus extends, the water inlet sets up in the bottom of inner tube, and at least partial inlet channel passes the urceolus diapire along the direction that is on a parallel with inside and outside urceolus central axis, and inlet channel's spout is towards the water inlet direction.

Furthermore, the distance from the center of the water inlet to the center of the bottom of the inner cylinder is D, the diameter of the inner cylinder is D, wherein D/D is more than or equal to 0.033 and less than 0.9; preferably, D/D is more than or equal to 0.07 and less than 0.4; more preferably, D/D is 0.1. ltoreq. D/D < 0.22.

Furthermore, a positioning mechanism is arranged between the inner barrel and the outer barrel, and in the water inlet process, the inner barrel stops at a set position under the action of the positioning mechanism, so that the nozzle of the water inlet flow channel is coincided with the water inlet on the wall of the inner barrel.

Furthermore, the inner cylinder is a non-porous inner cylinder with a cylinder wall which is not provided with dewatering holes.

Further, the shape of spout is the toper, and the diameter of spout towards the one end of water inlet is less than inhalant canal's diameter to increase spout spun rivers pressure reduces the water column diameter that erupts.

Furthermore, the water inlet is a taper hole, and the diameter of the water inlet towards one side of the inner barrel is larger than the diameter towards one side of the nozzle.

Further, the diameter of the side, facing the water inlet, of the nozzle is smaller than the diameter of the side, facing the nozzle, of the water inlet.

After the technical scheme is adopted, compared with the prior art, the invention has the following beneficial effects.

1. The inner barrel of the drum washing machine is a nonporous inner barrel, and washing water is contained in the inner barrel for washing during washing, so that the problem of dirt accumulation between the outer wall of the inner barrel and the inner wall of the outer barrel is solved.

2. According to the invention, the water inlet flow channel is arranged at the bottom of the outer barrel, water flow introduced by the water inlet structure is guided to the spray opening which is arranged on the outer barrel and faces the water inlet of the inner barrel, and water flow ejected from the spray opening crosses the gap between the inner barrel and the outer barrel to be sprayed to the water inlet and conveyed into the inner barrel, so that an additional water inlet pipeline is not required, and the arrangement space is saved.

3. The water inlet channel is provided with the supercharging device, so that the water pressure in the water inlet channel can be increased, water in the water inlet channel is sprayed into the inner barrel through the water inlet at a certain speed, clothes in the inner barrel can be washed away, and the clothes cleaning ratio is improved.

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention, are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without limiting the invention to the right. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:

FIG. 1 is a schematic structural view of a drum washing machine according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of a drum washing machine according to still another embodiment of the present invention;

FIG. 3 is an enlarged view at A in FIG. 1;

FIG. 4 is a schematic structural diagram of the bottom of the inner barrel in the embodiment of the present invention.

In the figure: 1. a housing; 2. an outer cylinder; 3. an inner barrel; 31. a water inlet; 32. lifting the ribs; 33. a centrifugal control valve; 4. a drive device; 51. a water inlet valve; 52. a flow sensor; 53. a detergent box; 6. a water inlet flow channel; 60. a spout; 61. a supercharging device.

It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate it by a person skilled in the art with reference to specific embodiments.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the following embodiments are used for illustrating the present invention and are not intended to limit the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example one

As shown in fig. 1 to 4, the drum washing machine according to the embodiment of the present invention includes a housing 1 and an inner drum 3 disposed inside the housing 1, wherein a water inlet structure is disposed inside the housing 1 to introduce water from an external water supply system into the housing 1 of the drum washing machine, and the water inlet structure includes a water inlet valve 51, a flow sensor 52 and a detergent box 53 for containing detergent, which are sequentially connected in series; the drum washing machine includes a water inlet 31 provided on a wall of the inner tub 3, the water inlet 31 communicating an inside and an outside of the inner tub 3; be equipped with into water runner 6 between inlet structure and the water inlet 31, inlet runner 6 is with the rivers water conservancy diversion that inlet structure introduced to spout 60 department that has the clearance setting with water inlet 31, and the rivers that jet out from spout 60 cross the clearance and spout to water inlet 31, carry to the inner tube 3 in. The drum washing machine in the present embodiment may be provided with the outer tub 2, or may not be provided with the outer tub 2.

In the embodiment of the invention, the roller washing machine comprises an outer barrel 2, an inner barrel 3 is sleeved in the outer barrel 2 and can rotate relative to the outer barrel 2, the inner barrel 3 and the outer barrel 2 are coaxial, the central axis is horizontally arranged, a driving device 4 is arranged between the inner barrel 3 and the outer barrel 2 to drive the inner barrel 3 to rotate around the outer barrel 2, and the outer wall of the inner barrel 3 and the inner wall of the outer barrel 2 are separated by a certain distance. The inner cylinder 3 of this embodiment is a nonporous inner cylinder 3 without dewatering holes on the cylinder wall, and when washing, the inner cylinder 3 holds washing water, and the driving device 4 drives the inner cylinder 3 to rotate to clean the clothes. The inner cylinder is provided with a water inlet 31, the water inlet channel 6 guides water flow introduced by the water inlet structure to a nozzle 60 which is arranged on the outer cylinder 2 and faces the water inlet 31 of the inner cylinder 3, and the water flow ejected from the nozzle 60 crosses a gap between the inner cylinder 2 and the outer cylinder 2 to be ejected to the water inlet 31 and conveyed to the inner cylinder 3.

In the embodiment of the invention, the water inlet end of the water inlet flow channel 6 is communicated with the water inlet structure so as to guide the water flow of an external system into the water inlet flow channel 6 through the water inlet structure, the water outlet end of the water inlet flow channel 6 penetrates through the wall of the outer cylinder 2, a nozzle 60 is formed on one side of the wall of the outer cylinder 2 facing the inner cylinder 3, the nozzle 60 and the water inlet 31 on the wall of the inner cylinder 3 are correspondingly arranged, a certain gap is formed between the inner cylinder 2 and the outer cylinder 2, a certain gap is formed between the nozzle 60 and the water inlet 31 in sequence, the nozzle 60 sprays the water flow, and the sprayed water flow is sprayed to the water inlet 31 through the gap and is conveyed into the inner cylinder 3. In order to increase the pressure of the water flowing through the inlet duct 6 and make the water flow at the nozzle 60 flow out in a jet shape, a pressurizing device 61 is added to the inlet duct 6, as shown in fig. 2, so that the waste of water resources caused by the water flow flowing out through the gap can be reduced. In the design, the gap between the bottoms of the inner and outer cylinders 2 is reduced as much as possible so as to meet the requirement that the gap can be crossed by the pressurized water flow. The bottom of the inner barrel 3 is provided with an air hole with a smaller diameter, which is beneficial to water flow to be sprayed into the inner barrel 3, the air hole is higher than the position of the water inlet 31 when the inner barrel 3 is in a static state, the diameter of the air hole is smaller, only a small part of washing water in the inner barrel 3 flows out in the rotary washing process of the inner barrel 3, the outer barrel 2 is provided with a water outlet, and water flow flowing into the space between the outer barrel 2 and the inner barrel 3 is discharged from the water outlet.

In the embodiment of the present invention, a positioning mechanism (not shown in the figure) is provided between the inner cylinder 3 and the outer cylinder 2, the inner cylinder 3 stops at a set position under the action of the positioning mechanism, so that the nozzle 60 of the water inlet channel 6 coincides with the water inlet 31 on the wall of the inner cylinder 3, and the inner cylinder 3 does not rotate relative to the outer cylinder 2 in the water inlet process.

Example two

In the embodiment of the invention, the nozzle 60 is arranged opposite to the water inlet 31, the water inlet 31 and the nozzle 60 are two opposite conical openings, and the diameter of one end of the nozzle 60 facing the water inlet 31 is smaller than that of the water inlet flow channel 6, so that the water flow pressure sprayed out by the nozzle 60 is increased, and the diameter of a sprayed water column is also reduced; the diameter of the water inlet 31 towards one side of the inner barrel 3 is larger than that towards one side of the nozzle 60, water flow at the water inlet 31 flows into the inner barrel 3 along the conical surface, and when the inner barrel 3 rotates for washing, the water in the inner barrel 3 is reduced to flow out from the water inlet 31; the diameter of the side of the spout 60 facing the water inlet 31 is smaller than the diameter of the side of the water inlet 31 facing the spout 60, so that the water flow sprayed from the spout 60 completely enters the water inlet 31.

EXAMPLE III

Referring to fig. 1 to 4, the water inlet 31 of the embodiment of the present invention is disposed at the bottom of the inner cylinder 3, at least a portion of the water inlet flow passage 6 passes through the bottom wall of the outer cylinder 2 along a direction parallel to the central axis of the inner and outer cylinders 2, and the nozzle 60 of the water inlet flow passage 6 faces the water inlet 31.

In the embodiment of the invention, as shown in fig. 4, the distance from the water inlet 31 to the center of the bottom of the inner barrel 3 is D, D can be determined according to the diameter of the inner barrel 3, and the diameter of the inner barrel 3 is D, wherein D/D is more than or equal to 0.033 and less than 0.9; preferably, D/D is more than or equal to 0.07 and less than 0.4; more preferably, D/D is 0.1. ltoreq. D/D < 0.22. This ensures that water in the drum 3 does not leak out of the water inlet 31 during the washing process.

Example four

As shown in fig. 1, the water inlet structure according to the embodiment of the present invention includes a water inlet valve 51, a flow sensor 52, and a detergent box 53, which are sequentially connected in series, the water inlet structure is communicated with the water inlet channel 6, the water inlet structure introduces water flow of an external water supply system into the water inlet channel 6, and the water flow is injected into the inner barrel 3 through a nozzle 60 located at the end of the water inlet channel 6.

In this embodiment, the water inlet structure is provided with a flow sensor 52 to detect the amount of water entering the inner drum 3 of the drum washing machine, when the amount of water flowing into the inner drum 3 reaches a set value, the water inlet valve 51 is closed, water inlet is stopped, the washing machine starts washing, and the flow sensor 52 is arranged at the downstream of the water inlet valve 51; preferably, the flow sensor 52 may be a rotor flow sensor 52, a turbine flow sensor 52, an ultrasonic flow sensor 52, an electromagnetic flow sensor 52, an orifice flow sensor 52, or the like.

In this embodiment, the detergent box 53 may contain detergent, washing powder, softener, etc., and water flows into the detergent box 53 to dissolve the detergent, washing powder, or softener and then is conveyed into the water inlet flow passage 6.

In this embodiment, the water inlet structure is further provided with a heating device (not shown in the figure) which can fully dissolve the detergent and the like, and the heating device can be arranged at any position. For example, the heating device may be disposed at the downstream of the detergent box 53, and the water inlet valve 51, the flow sensor 52, the detergent box 53, and the heating device are connected in series in sequence from the water inlet end of the water inlet structure to the water outlet end of the water inlet structure; or, the heating device is arranged between the flow sensor 52 and the detergent box 53, and the water inlet valve 51, the flow sensor 52, the heating device and the detergent box 53 are connected in series in sequence from the water inlet end of the water inlet structure to the water outlet end of the water inlet structure.

EXAMPLE five

As shown in fig. 1 and 2, in the embodiment of the present invention, a plurality of lifting ribs 32 are uniformly spaced on the inner wall of the inner cylinder 3, a plurality of water permeable holes are provided on the outer shell of the lifting ribs 32, an opening is provided on the inner wall of the inner cylinder 3 at a position corresponding to the lifting ribs 32, a centrifugal control valve 33 is provided at the opening, a drain outlet is provided at the lowest position of the outer cylinder 2, and the centrifugal control valve 33 is opened to drain water when the inner cylinder 3 rotates at a high speed.

In this embodiment, the centrifugal control valve 33 has two positions, and the centrifugal control valve 33 can be switched between the first position and the second position according to the rotation speed of the inner drum 3. When the inner cylinder 3 rotates at a low speed, the centrifugal control valve 33 is at the first position to close the opening, and when the inner cylinder 3 rotates at a high speed, the centrifugal control valve 33 is at the second position to open the opening, so that the water in the inner cylinder 3 is discharged.

In this embodiment, centrifugal control includes valve plug, lever and weight greatly, the valve plug corresponds and seals the opening, and weight and valve plug set up respectively in the both sides of lever, and when section of thick bamboo 3 was static including, or low-speed rotatory, the opening was sealed to the valve plug, and when section of thick bamboo 3 high-speed rotatory including, the weight received the effect of centrifugal force, outwards removed along 3 radial directions of inner tube, drove the valve plug and remove to keeping away from open-ended direction and open the opening.

Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A drum washing machine comprises a drum washing machine body,

a housing;

an inner cylinder disposed inside the housing;

the water inlet structure is arranged on the shell and introduces water flow provided by an external water supply system into the shell of the washing machine;

the method is characterized in that:

the water inlet is arranged on the inner cylinder and communicated with the inside and the outside of the inner cylinder;

the water inlet flow channel guides water flow introduced by the water inlet structure to a spray opening with a gap arranged with the water inlet, and the water flow ejected from the spray opening crosses the gap to be sprayed to the water inlet and conveyed into the inner cylinder;

the drum washing machine comprises an outer drum, an inner drum is sleeved in the outer drum and rotates relative to the outer drum, and the central axes of the inner drum and the outer drum extend in parallel;

the water outlet end of the water inlet flow channel penetrates through the outer cylinder wall, and a nozzle is formed at one side of the outer cylinder wall facing the inner cylinder;

the water inlet is arranged at the bottom of the inner cylinder, at least part of the water inlet flow channel penetrates through the bottom wall of the outer cylinder along the direction parallel to the central line of the inner cylinder and the outer cylinder, and the nozzle of the water inlet flow channel faces the water inlet;

and a positioning mechanism is arranged between the inner barrel and the outer barrel, and in the water inlet process, the inner barrel stops at a set position under the action of the positioning mechanism, so that the nozzle of the water inlet flow channel is coincided with the water inlet on the wall of the inner barrel.

2. A drum washing machine according to claim 1, characterized in that: the water inlet channel is provided with a supercharging device for increasing the pressure of flowing water, so that the nozzle sprays the water outwards.

3. A drum washing machine according to claim 1, characterized in that: the distance from the center of the water inlet to the center of the bottom of the inner barrel is D, the diameter of the inner barrel is D, and D/D is more than or equal to 0.033 and less than 0.9.

4. A drum washing machine according to claim 3, characterized in that D/D is 0.07 ≦ D < 0.4.

5. A drum washing machine according to claim 4, characterized in that D/D is 0.1 ≦ D < 0.22.

6. A drum washing machine according to any one of claims 1 to 5, characterized in that: the inner cylinder is a non-porous inner cylinder with the wall not provided with dewatering holes.

7. A drum washing machine according to any one of claims 1 to 5, characterized in that: the shape of spout is the toper, and the spout is less than inhalant canal's diameter towards the diameter of the one end of water inlet to increase spout spun rivers pressure, reduce the water column diameter that erupts.

8. A drum washing machine according to any one of claims 1 to 5, characterized in that: the water inlet is a taper hole, and the diameter of the water inlet towards one side of the inner barrel is larger than that towards one side of the nozzle.

9. A drum washing machine according to claim 8, characterized in that: the diameter of one side of the nozzle, which faces the water inlet, is smaller than that of one side of the water inlet, which faces the nozzle.