CN108315972B

CN108315972B - Valve and washing machine

Info

Publication number: CN108315972B
Application number: CN201810344193.0A
Authority: CN
Inventors: 李玉娇; 董晶晶; 应文; 李爱华
Original assignee: Nanjing Zhongjingke Electronic Technology Co ltd
Current assignee: Nanjing zhongjingke Intelligent Technology Co.,Ltd.
Priority date: 2018-04-17
Filing date: 2018-04-17
Publication date: 2020-07-10
Anticipated expiration: 2038-04-17
Also published as: CN108315972A

Abstract

The invention relates to the technical field of washing machines and discloses a valve and a washing machine. The valve comprises two hoses, one ends of the two hoses are connected to the same water inlet, and the other ends of the two hoses are water outlets; and the driving unit is configured to drive the two hoses to rotate and twist by a preset angle, so that when one of the two hoses is in an open state, the other hose is in a closed state. The invention solves the problems that the drainage structure in the prior art is inconvenient to operate and the pipeline is easy to block when the washing machine drains water in the upper water and the lower water in the prior art.

Description

Valve and washing machine

Technical Field

The invention relates to the technical field of washing machines, in particular to a valve and a washing machine.

Background

In order to realize a circulating drainage function of the existing washing machine, two drainage pumps are arranged in the washing machine, one drainage pump realizes the circulating function, and the other drainage pump realizes the drainage function. The drainage structure has the problems of complex structure and high cost.

When the washing machine drains water in water and supplies water, the uniform change of the flow in the pipe is usually realized by the rotation angle change of the valve core of the ball valve. The prior art also provides a hose valve, and the specific scheme is that two flexible valve clacks which are opposite and obliquely upwards extend are arranged in a soft and elastic pipeline. The flexible valve clacks are in close butt joint in a herringbone shape and block the pipe cavity, the bottoms of the flexible valve clacks form creases through the grooves, two hand feeling convex points are symmetrically arranged on the outer wall of the pipeline, and when the hand feeling convex points are manually pressed, the flexible valve clacks can be bent along the creases and conduct the pipe cavity.

The above-mentioned two kinds of control drainage or circulation function's structure is complicated, all needs to realize the switching of pipeline through manual operation, easily causes the hair to block up in the pipeline of above-mentioned structure moreover, influences the use of pipeline.

Disclosure of Invention

The invention aims to provide a valve and a washing machine, which are used for solving the problems that a drainage structure in the prior art is inconvenient to operate and a pipeline is easy to block when the washing machine in the prior art drains water in an upper water drainage mode and a lower water drainage mode.

In order to achieve the purpose, the invention adopts the following technical scheme:

providing a valve comprising:

one ends of the two hoses are connected to the same water inlet, and the other ends of the two hoses are water outlets; and

a driving unit configured to be able to drive the two hoses to rotate and twist by a preset angle such that when one of the two hoses is in an open state, the other is in a closed state.

Preferably, the hose is circumferentially provided with a first groove, and axially provided with a second groove, and the second groove and the first groove are arranged in a crossed manner.

Preferably, the second groove is symmetrically disposed about a center line of a ring shape of the first groove.

Preferably, at least two second grooves are uniformly distributed on the periphery of the hose.

Preferably, a spiral line boss is arranged at one end of each hose close to the water outlet or the water inlet.

Preferably, still include the shell, still be provided with on the shell with the cell type shell that the hose connection, be provided with the helix recess on the cell type shell, the helix recess with the cooperation of helix boss.

Preferably, the driving unit includes:

the motor is arranged on the shell;

and the linkage assembly is connected to the output end of the motor and drives the linkage assembly to simultaneously switch the working states of the two hoses.

Preferably, the linkage assembly comprises:

the worm wheel is connected to the output end of the motor;

a worm engaged with the worm wheel;

the rotary gears are sleeved on the hoses;

and the transmission gear is connected to the worm, is meshed with one of the rotating gears and rotates for a preset angle to drive the hose connected with the rotating gear to be opened or closed.

Preferably, the linkage assembly further comprises two reset gears arranged between the two hoses, the two reset gears are meshed with each other, each reset gear is meshed with one rotating gear, and the rotating gears can drive the reset gears to rotate.

The invention also provides a washing machine, which comprises a drain pipe, wherein the drain pipe comprises the valve.

The invention has the beneficial effects that: according to the invention, the driving unit is arranged in the valve to drive the hoses to rotate, and the rotation and distortion of the hoses are controlled, so that the two hoses are alternately opened or closed. Meanwhile, the hose is in the process of draining, after the hose is opened, the water passing diameter of the hose is the diameter of the hose, and the water flow is large, so that impurities such as slag chips and hair are not easy to remain in the hose, the service life of the hose is prolonged, the maintenance frequency is reduced, and meanwhile, the experience degree of a client is improved.

Drawings

FIG. 1 is a schematic view of an angled configuration of the valve of the present invention;

FIG. 2 is a schematic view of another angular configuration of the valve of the present invention;

FIG. 3 is a schematic view of an angled internal configuration of the valve of the present invention (excluding a portion of the housing);

FIG. 4 is a schematic view of another angled internal configuration of the valve of the present invention (excluding a portion of the housing);

FIG. 5 is a schematic view of an angled internal configuration of the valve of the present invention (excluding the housing);

FIG. 6 is a schematic view of another angled internal configuration of the valve of the present invention (excluding the housing);

FIG. 7 is a schematic view of a first angle configuration of the hose of the present invention;

FIG. 8 is a second angled construction of the hose of the present invention;

FIG. 9 is a third angle schematic of the hose of the present invention;

fig. 10 is a schematic view of the construction of the cell type case of the present invention.

In the figure:

1. a housing; 10. a water inlet; 20. a water outlet; 30. an inductive component; 11. a trough shell; 111. a helical groove; 12. mounting holes;

2. a hose; 21. a first groove; 22. a second groove; 23. a helical line boss;

3. a drive unit; 31. a motor; 32. a linkage assembly; 321. a worm gear; 322. a worm; 323. a rotating gear; 324. a transmission gear; 325. and a reset gear.

Detailed Description

The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.

As shown in fig. 1-6, the present embodiment provides a valve including a housing 1, two hoses 2, and a driving unit 3. Wherein, two hoses 2 all set up in shell 1, and two hoses 2 parallel arrangement, and the one end of two hoses 2 is connected in same water inlet 10, and the other end of two hoses 2 is delivery port 20. The above-described driving unit 3 is configured to be able to drive the hoses 2 to twist rotationally by a preset angle so that one of the two hoses 2 is in an open state and the other is in a closed state.

As shown in fig. 3 to 5, the driving unit 3 includes a motor 31 and a linkage assembly 32. Wherein the motor 31 is arranged on the housing 1. The linkage assembly 32 is connected to an output end of the motor 31, and the motor 31 drives the linkage assembly 32 to switch the working state of the hose 2.

Specifically, linkage assembly 32 includes a worm gear 321, a worm 322, a rotary gear 323, a transfer gear 324, and a return gear 325. Wherein, worm wheel 321 is connected to the output end of motor 31, worm 322 meshes with worm wheel 321, and every hose 2 is all overlapped and is equipped with rotary gear 323. The driving gear 324 is connected to the worm 322, and the driving gear 324 can be alternately engaged with the rotating gear 323 of one of the hoses 2 and rotated by a preset angle to twist the corresponding hose 2 to open or close.

The motor 31 is arranged outside the shell 1, the output end of the motor extends into the shell 1 and is connected with the worm gear 321, the worm 322 is arranged between the two hoses 2, and the worm gear 321 and the worm 322 are in meshing transmission. The drive gear 324 is arranged coaxially with the worm 322 and the central axis coincides.

The driving gear 324 is an incomplete gear, and when the driving gear 324 rotates by a preset angle, the incomplete gear is meshed with one of the rotating gears 323, so that the hose 2 connected with the rotating gear 323 is driven to rotate and twist, and the purpose of closing or opening the hose 2 is achieved. The driving gear 324 continues to rotate to engage with another rotating gear 323, thereby starting to open or close another hose 2. Preferably, the toothed portion of the transmission gear 324 occupies the same angle as the preset angle of rotation of the hose 2.

In a preferred technical solution, two reset gears 325 are disposed between the two hoses 2, the two reset gears 325 are engaged with each other, and each reset gear 325 is engaged with one rotating gear 323, and the rotating gear 323 can drive the reset gear 325 to rotate.

In this embodiment, the transmission gear 324 drives the rotating gear 323 on the hose 2 in the closed state to rotate, and the hose 2 connected to the rotating gear 323 is changed from the closed state to the open state by the twisting deformation of the hose 2. At the same time as the rotation of the rotary gear 323 starts, the return gear 325 is rotated by the rotary gear 323, and the return gear 325 rotates the rotary gear 323 of the hose 2 in the initial open state, thereby starting the closing of the hose 2 in the initial open state.

The rotating gear 323 includes a partial complete gear and a partial incomplete gear, which are axially disposed, and in this embodiment, the two partial structures are integrally formed, the partial incomplete gear is engaged with the transmission gear 324, and a part of the complete gear is engaged with the reset gear 325. Preferably, the angle of the toothed portion of the partial gear portion of the rotary gear 323 to the entire gear is at least twice the preset angle. The reason why the rotary gear 323 is partially incomplete gear is to prevent the rotary gear 323 from interfering with the structure of the housing 1 during the actual assembly process. On the other hand, the valve in this embodiment is provided with two hoses 2, and in the initial installation state, one of the hoses 2 is in a closed state and the other hose 2 is in an open state, so that the hoses 2 molded by one mold can be used commonly in order to make the two hoses 2 identical, thereby reducing the production cost.

The rotating gear 323 can be an incomplete gear or a complete gear, and is determined according to actual conditions as long as the driving gear 324 rotates by a preset angle, so that one of the hoses 2 can be closed, and the other hose 2 can be opened. The full gear portion and the partial gear portion of the rotary gear 323 may be provided separately.

A sensing member 30 for sensing a position where the reset gear 325 is rotated is further installed at a predetermined position on the outer side of the housing 1, and the sensing member 30 installed on the housing 1 is a reed switch.

Specifically, as shown in fig. 5 and 6, in the initial installation stage and the valve operating state of the valve, the two hoses 2 are always in an open state and the other is in a closed state. In a specific technical scheme, as shown in fig. 7 and 8, a first groove 21 and a second groove 22 are arranged on the outer wall of the hose 2 along the circumferential direction, and the first groove 21 and the second groove 22 are arranged in a crossed manner. The first groove 21 and the second groove 22 may be provided on the inner wall of the hose 2 in the same positional relationship as on the outer wall. The first and

second grooves

21 and 22 are U-shaped cut grooves, and the first and

second grooves

21 and 22 are provided to reduce the strength and hardness of the hose 2, so that the first and

second grooves

21 and 22 are formed to facilitate the rotational twisting of the hose 2 and the deformation of the hose due to the back and forth movement caused by the twisting during the twisting.

As shown in fig. 7 to 10, a preferred embodiment is that the second grooves 22 are symmetrically arranged about the center line of the ring shape of the first groove 21. The number of the second grooves 22 is two, at least two second grooves 22 are uniformly distributed on the hose 2 in the circumferential direction, the second grooves 22 are symmetrical about the central axis of the hose 2, and the intersection of the first grooves 21 and the second grooves 22 is a fan-shaped arc surface. The above arrangement is to make the deformation of the hose 2 uniform on both sides of the first groove 21 when the hose 2 is deformed.

In addition, as shown in fig. 3, 4 and 10, a spiral line boss 23 is provided on each hose 2 at an end close to the water outlet 20 or the water inlet 10. The outer shell 1 is further provided with a groove-shaped shell 11 connected with the hose 2, the groove-shaped shell 11 is provided with a spiral line groove 111, and the spiral line groove 111 is connected with the spiral line boss 23 in a matched mode. The spiral line boss 23 in this embodiment is disposed at an end of the groove-shaped shell 11 close to the water outlet 20, and the groove-shaped shell 11 is connected to the water outlet of the hose 2, so that the hose 2 can be conveniently rotated and twisted, and the overall structure is simple.

The groove-shaped shell 11 in this embodiment may be provided separately from the housing 1, or may be integrally formed, and the groove-shaped shell 11 may be located inside the housing 1, may be located outside the housing 1, or may extend to the outside of the housing 1. Hose 2 is at the in-process of distortion, through the cooperation of helix recess 111 with helix boss 23, has realized being close to the spacing of the one end of delivery port 20 to hose 2, simultaneously, through the relative rotation of helix boss 23 in helix recess 111, has also realized the seesaw of hose 2 at rotatory in-process.

The embodiment also provides a washing machine, which comprises a drain pipe, wherein the drain pipe comprises the valve.

The working process of the valve in this embodiment is as follows:

in the initial state of the two hoses 2 of the valve in this embodiment, one of the hoses 2 is rotated by a preset angle through the tool, so that the hose 2 is in a closed state and is fixed to the housing 1 through the mounting hole 12, and thus one of the hoses 2 is mounted in the closed state and the other hose is mounted in the open state.

The valve in this embodiment uses the motor 31 to drive the worm wheel 321 and the worm 322 to rotate, and further drives the transmission gear 324 to rotate, so as to further drive the rotating gear 323 to rotate. The transmission gear 324 is engaged with the rotating gear 323 of the closed hose 2, the rotating gear 323 rotates to start the rotation of the closed hose 2 to gradually open, and simultaneously the rotating gear 323 drives the reset gear 325 engaged therewith to rotate, and simultaneously the two engaged reset gears 325 start to rotate together, so as to drive the other rotating gear 323 engaged with the reset gear 325 to rotate, thereby driving the open hose 2 to gradually close.

When the working state of the hose 2 gradually moves from the closed state to the open state to the position sensed by the sensing part 30, the rotating gear 323 stops working, and at this time, the hose 2 in the initial state is changed from the closed state to the open state, and the hose 2 in the initial state is changed from the open state to the closed state. The return gear 325 rotates the rotary gear 323 on the hose 2 to ensure that the hose 2 can be restored to the initial working state after each working. By repeating the above operations in sequence, the operating states of the two hoses 2 can be switched repeatedly.

The angle of the toothed part of the transmission gear 324 is the same as the angle that the hose 2 needs to rotate, the angle that the rotating gear 323 drives the hose 2 to rotate is small, the stroke of the hose 2 moving along the length direction is small, and the middle of the hose 2 cannot be sealed at this time. Meanwhile, if the rotation angle is too large, the stroke of the forward and backward movement of the hose 2 is increased due to the too large rotation angle, and the middle of the hose 2 is too large in distortion degree, so that the hose 2 cannot be sealed. Thus, the predetermined angle at which the hose 2 is rotated is set to have a predetermined relationship with the wall thickness of the hose 2. Based on the above two predetermined relationships, an appropriate wall thickness is selected and the angle of the toothed portion of drive gear 324 is determined.

By the relationship between the wall thickness of the hose 2 and the twist seal of the stroke of the hose 2, the thicker the wall thickness of the hose 2, the greater the deformation force required for the twist seal, and the greater the pressure that can be withstood when sealing the pipe. The thinner the wall thickness of the respective hose 2, the less pressure the pipe can withstand when sealed.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A valve, characterized by a drain for a washing machine, comprising:

one ends of the two hoses (2) are connected to the same water inlet (10), and the other ends of the two hoses (2) are water outlets (20); and

a driving unit (3), wherein the driving unit (3) is configured to drive the two hoses (2) to rotate and twist by a preset angle, so that when one of the two hoses (2) is in an open state, the other hose is in a closed state;

a first groove (21) is formed in the hose (2) along the circumferential direction, a second groove (22) is formed in the hose along the axial direction, and the second groove (22) and the first groove (21) are arranged in a crossed mode;

the second grooves (22) are symmetrically arranged about the annular center line of the first groove (21);

at least two second grooves (22) are uniformly distributed on the hose (2) in the circumferential direction.

2. Valve according to claim 1, wherein each hose (2) is provided with a helical projection (23) at its end adjacent to the water outlet (20) or water inlet (10).

3. The valve according to claim 2, further comprising an outer shell (1), wherein a groove-shaped shell (11) connected with the hose (2) is further arranged on the outer shell (1), a spiral line groove (111) is arranged on the groove-shaped shell (11), and the spiral line groove (111) is matched with the spiral line boss (23).

4. Valve according to claim 3, wherein the drive unit (3) comprises:

a motor (31) disposed on the housing (1);

and the linkage assembly (32) is connected to the output end of the motor (31), and the motor (31) drives the linkage assembly (32) to simultaneously switch the working states of the two hoses (2).

5. The valve of claim 4, wherein the linkage assembly (32) comprises:

a worm gear (321) connected to an output end of the motor (31);

a worm (322) engaged with the worm wheel (321);

the rotary gears (323) are sleeved on each hose (2);

a transmission gear (324) connected to the worm (322), the transmission gear (324) being capable of alternately meshing with one of the rotary gears (323) and rotating by a preset angle.

6. The valve according to claim 5, wherein the linkage assembly (32) further comprises two return gears (325) disposed between the two hoses (2), the two return gears (325) being in mesh with each other, and each return gear (325) being in mesh with one of the rotary gears (323), the rotary gears (323) rotating the return gears (325).

7. A washing machine comprising a drain, characterized in that the drain comprises a valve according to any one of claims 1-6.