Washing machine

Abstract

The present invention discloses a washing machine, comprising: a drain valve having a movable piston therein and switching the opening and closing states of the drain valve through the movement of the piston; the speed reduction clutch is provided with a brake arm capable of swinging, and different working states of the speed reduction clutch are switched through swinging of the brake arm; the driving mechanism is provided with a telescopic driving end; the connecting arm is arranged on the brake arm and is positioned between the drain valve and the driving mechanism; a sliding part capable of moving in the moving direction of the piston is arranged on one side of the connecting arm and connected with the piston, and the other side of the connecting arm is connected with the driving end of the driving mechanism. The connecting arm is arranged on the brake arm of the speed reduction clutch, the sliding part in the moving direction of the piston is arranged on the connecting arm, and the moving distance of the connecting arm is adjusted stage by stage by controlling the driving end of the driving mechanism; therefore, the working condition that the speed reduction clutch controls the inner barrel to rotate without draining water and the working condition that the inner barrel is controlled to rotate and drain water can be realized simultaneously.

Description

Technical Field

[0001] The present invention belongs to the technical field of clothing processing equipment, and in particular, relates to a washing machine. Background Art

[0002] The existing pulsator washing machine mainly includes a box body, an outer barrel, an inner barrel and a driving motor arranged in the box body. A disc pulsator with protruding ribs is installed at the bottom of the inner barrel. Driven by the pulsator, the water flow in the barrel forms a vortex, driving the fabric to rotate and roll, so that the dirt on the clothes can be removed.

[0003] In the current pulsator washing machine, during the drainage stage, the drainage motor is used to open the brake arm of the reducer and the drain valve at the same time (after the brake arm of the reducer is opened, the rotation of the motor will drive the inner barrel and the pulsator to rotate synchronously). That is, after the drainage motor rotates, the inner barrel is dehydrated. This method cannot achieve the working condition of not discharging washing water in the dehydration state. For example, in the spray rinsing stage, in order to save water resources, it is hoped that the water can be sprayed evenly on the clothes. In order to make the water sprayed evenly, it is best to keep the inner barrel in a rotating state while spraying. At this stage, it is hoped that no drainage operation will be performed. However, the current product structure cannot achieve this function.

[0004] In view of this, the present invention is proposed. Summary of the invention

[0005] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a washing machine. A connecting arm is arranged on the brake arm of the deceleration clutch, and the connecting arm has a sliding portion along the movement direction of the piston. By controlling the driving end of the driving mechanism, the moving distance of the connecting arm is adjusted in stages, thereby simultaneously realizing the conditions in which the deceleration clutch controls the rotation of the inner drum without draining water and the conditions in which the inner drum is controlled to rotate and drain water.

[0006] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is: providing a washing machine, including a drain valve, wherein a movable piston is provided inside, and the open and closed states of the drain valve are switched by the movement of the piston;

[0007] The deceleration clutch has a swingable brake arm, and the different working states of the deceleration clutch are switched by the swing of the brake arm;

[0008] a drive mechanism having a retractable drive end;

[0009] Also included is a connecting arm, which is disposed on the brake arm and is located between the drain valve and the driving mechanism;

[0010] A sliding part that can move along the movement direction of the piston is provided on one side of the connecting arm, and the sliding part is connected to the piston.

[0011] The other side is connected to the driving end of the driving mechanism.

[0012] Furthermore, a slideway along the movement direction of the piston is arranged on the side wall of the connecting arm, and the sliding part is slidably arranged in the slideway.

[0013] Further, the number of the sliding parts is two;

[0014] The connecting arm is provided with two slideways which are slidably matched with the sliding part, and the two slideways are symmetrically arranged with respect to the perpendicular midline of the length of the connecting arm along the moving direction of the piston.

[0015] Further, the sliding portion includes,

[0016] A slider is slidably disposed in the slideway;

[0017] A pull rope, one end of which is connected to the corresponding slider, and the other end of which is connected to the piston or the driving end of the driving mechanism.

[0018] Furthermore, the connecting arm is provided with two strip-shaped openings extending in the direction of piston movement, and first sliding walls are provided on both sides of the extending direction of the strip-shaped openings, protruding from the upper side or the lower side of the connecting arm and extending outwards;

[0019] The two first sliding walls are bent toward opposite sides to form second sliding walls, and there is a distance between the two second sliding walls to form the slideway.

[0020] Furthermore, a first through opening is provided at a distance between the two second sliding walls near the center of the connecting arm, and an opening size of the first through opening is larger than an outer diameter size of the sliding block.

[0021] Further, the connecting arm is rotatably arranged on the brake arm of the deceleration clutch, and the extension length of the slideway is greater than or equal to the length of the secant corresponding to the circle where the connecting arm and the brake arm are connected when the brake arm swings to the deceleration clutch in the first working state;

[0022] Alternatively, the connecting arm may be slidably disposed on the brake arm of the deceleration clutch, and the extension length of the slideway is greater than or equal to the linear distance that the brake arm moves along the piston movement direction when the deceleration clutch is swung to the first working state.

[0023] Furthermore, a second opening is provided on the side wall of the connecting arm between the two slideways, a plug rod extending along the piston movement direction is provided on the side wall close to the driving mechanism, and a socket slidably connected to the plug rod is provided on the brake arm, and a clearance fit is provided between the plug rod and the socket.

[0024] Furthermore, two symmetrical brake arm claws are arranged on a side of the second opening opposite to the side wall where the insertion rod is arranged, and the two brake arm claws are extended from the connection point toward the direction of the insertion rod.

[0025] Furthermore, the two brake arm claws are gradually inclined and arranged close to each other along the extension direction thereof, and the minimum distance between the two claws is less than or equal to the width of the brake arm.

[0026] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0027] (1) The present invention provides a connecting arm on the brake arm of the deceleration clutch, and provides a sliding portion on the connecting arm along the movement direction of the piston. By controlling the driving of the driving mechanism, the moving distance of the connecting arm is adjusted in stages, thereby simultaneously realizing the spray rinsing condition in which the deceleration clutch controls the rotation of the inner tub without draining water, and the dehydration condition in which the rotation of the inner tub is controlled and water is drained.

[0028] (2) The present invention is slidably arranged on the brake arm of the deceleration clutch through a connecting arm, and the extension length of the slide is greater than or equal to the straight-line distance moved along the movement direction of the piston when the brake arm swings to the relaxed state of the brake wheel. The driving force of the driving mechanism is always in the same straight line with the connecting arm and the piston, so the required driving force will be smaller, and the requirements for the overall length of the connecting arm or the length of the slide will be lower.

[0029] (3) The present invention forms a slideway by arranging a strip opening on the connecting arm, and two pairs of first sliding walls and second sliding walls are arranged on the extended edges of the strip opening. A first through opening having an opening larger than the outer diameter of the slider is arranged near the center of the connecting arm of the slideway. This not only facilitates the installation of the slider in the slideway, but also reduces the contact area with the slider due to the open bottom of the slideway, thereby making the sliding action smoother.

[0030] (4) The present invention provides a second opening at the center of the connecting arm, and a plug rod extending along the piston movement direction is provided on the side of the second opening close to the driving mechanism, and a plug hole that matches the plug rod clearance is provided on the brake arm. The plug rod then serves to limit the connection of the brake arm, thereby preventing the brake arm from being separated from the connecting arm.

[0031] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation of the present invention. Obviously, the drawings described below are only some embodiments. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the accompanying drawings:

[0033] Figure 1 It is a schematic diagram of the distribution structure of a connecting arm, a deceleration clutch and a drain valve of a washing machine of the present invention;

[0034] Figure 2 is a top view of a connecting arm in one embodiment of the present invention;

[0035] Figure 3 is an axonometric view of a connecting arm in one embodiment of the present invention;

[0036] Figure 4 Schematic diagram of an axonometric view of a connecting arm in another embodiment of the present invention.

[0037] In the figure: 1. drain valve; 2. deceleration clutch; 21. brake arm; 3. driving mechanism; 4. connecting arm; 41. slideway; 411. first sliding wall; 412. second sliding wall; 413. interval; 42. first opening; 43. second opening; 44. plug rod; 45. brake arm claw; 5. pull rope.

[0038] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but are intended to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0039] In order to make the purpose, 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 in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0040] In the description of the present invention, it should be noted that the directions or positional relationships indicated by terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “vertical”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0041] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] like Figures 1 to 4 As shown, a washing machine according to the present invention comprises a drain valve 1, wherein a movable piston is provided inside, and the drain valve 1 is switched between an open state and a closed state by the movement of the piston;

[0043] Specifically, the drain valve 1 includes a valve body and a piston, the piston is slidably arranged inside the valve body, a piston rod is arranged at the tail of the piston, and a return spring is arranged between the piston and the piston rod, and when the piston slides along the inside of the valve body, the drain hole in the valve body can be alternately opened or closed. After the piston is pulled by the piston rod to open the drain hole of the valve body, the piston can automatically re-block the drain hole of the valve body under the elastic force of the return spring.

[0044] And the deceleration clutch 2 has a swingable brake arm 21, and the different working states of the deceleration clutch 2 are switched by the swing of the brake arm 21. Specifically, the brake arm 21 drives the brake wheel to realize that the brake wheel is in a relaxed state or a fixed state, thereby corresponding to the different working states of the deceleration clutch 2, which are respectively recorded as the first working state and the second working state.

[0045] Specifically, the deceleration clutch 2 includes a brake wheel and a brake arm 21, wherein a torsion spring is arranged inside the brake wheel. In the initial state, the brake arm 21 is in the initial position, and the torsion spring is in a loose state. After the deceleration clutch 2 is installed in the washing machine, during the washing stage, since the torsion spring inside the brake wheel is in a loose state at this time, the reducer shaft rotates at this time, deceleration is achieved through the reduction box, and the impeller shaft outputs power to transmit torque to the impeller of the washing machine, thereby realizing the washing condition of the washing machine. When switching to the dehydration program, the brake arm 21 rotates a certain angle, the brake wheel is relaxed, and the internal torsion spring is tightened, so that the reducer shaft is connected to the dehydration shaft disk that fixes the inner barrel. When the reducer shaft rotates, the dehydration shaft disk is driven to rotate, and the dehydration shaft disk is fixed to the inner barrel component by fasteners such as screws, and the inner barrel rotates along with the dehydration shaft disk, thereby realizing the dehydration condition of the washing machine.

[0046] The driving mechanism 3 has a retractable driving end. Specifically, the driving mechanism 3 can be any one of a retractable motor, a driving motor or a hydraulic cylinder.

[0047] Through the coordinated arrangement of the drain valve 1 and the deceleration clutch 2, it can be realized that during the washing program, the reducer shaft drives the impeller to rotate and wash the clothes, and the washing machine does not perform the drainage action at this time; during the dehydration program, the brake arm 21 of the reducer rotates a certain angle, so that the reducer shaft and the dehydration shaft of the inner barrel are fixed together, so that the drain valve 1 of the washing machine can be opened to perform the drainage action during the dehydration stage. However, in order to ensure the washing effect, the spray rinsing stage of the water inlet program is usually added to ensure that the washing water can be evenly sprayed on the clothes. It is hoped that the inner barrel can be rotated at this time, so that when the washing liquid is added in each direction, the clothes in the inner barrel can be sprayed evenly in all directions due to the rotation of the inner barrel. However, when the reducer shaft drives the inner barrel to rotate, the drain valve 1 of the existing washing machine will open to perform the drainage action, and the spray rinsing working condition cannot be normally realized.

[0048] In order to overcome the above-mentioned defects, the present invention makes corresponding improvements.

[0049] Furthermore, it also includes a connecting arm 4 , which is arranged on the brake arm 21 of the deceleration clutch 2 and is located between the drain valve 1 and the driving mechanism 3 .

[0050] The connecting arm 4 is arranged on the brake arm 21 of the deceleration clutch 2 . The connecting arm 4 is provided with a sliding part which can move along the movement direction of the piston. The sliding part is connected to the piston and the other side is connected to the driving end of the driving mechanism 3 .

[0051] In the present invention, reference is made to Figure 1 The deceleration clutch 2 and the driving mechanism 3 are respectively fixedly arranged at the bottom of the outer barrel of the washing machine. When projected downward from the top of the washing machine, the driving mechanism 3, the deceleration clutch 2 and the drain valve 1 are arranged from left to right in sequence. A connecting arm 4 is arranged on the brake arm 21 of the deceleration clutch 2, and a sliding part is arranged on the connecting arm 4, wherein the sliding direction of the sliding part is along the connecting line direction of the brake arm 21 and the piston of the drain valve 1. Specifically, the sliding part is connected to the piston rod at the tail of the piston.

[0052] The driving force provided by the driving mechanism 3 causes the driving end to drive the connecting arm 4 to move, and the brake arm 21 can swing accordingly, so that the brake arm 21 of the deceleration clutch 2 can be adjusted to the state where the brake wheel is in a relaxed state, that is, the reducer shaft is connected to the dehydration shaft of the inner barrel, and drives the inner barrel to rotate. The sliding part slides along the connecting arm 4 for a certain distance, and does not drive the piston to move in the valve body of the drain valve 1, so the drainage action will not be performed, and the spray rinsing procedure can be performed at this time. When the dehydration procedure is required, the driving mechanism 3 is controlled to continue to drive, so that the connecting arm 4 moves further in the direction close to the driving mechanism 3, and the sliding part cannot continue to slide relative to the connecting part, so the piston is pulled to move in the valve body of the drain valve 1, so that the drain valve 1 can be opened.

[0053] In the present invention, the moving distance of the connecting arm 4 can be adjusted in stages by controlling the driving of the driving mechanism 3, thereby simultaneously realizing the spray rinsing condition in which the deceleration clutch 2 controls the rotation of the inner barrel without draining water, and the dehydration condition in which the rotation of the inner barrel is controlled and water is drained.

[0054] Furthermore, a slideway 41 along the piston movement direction is arranged on the side wall of the connecting arm 4 , and the sliding part is slidably arranged in the slideway 41 .

[0055] The connecting arm 4 is rotatably disposed on the brake arm 21 of the deceleration clutch 2, and the extension length of the slideway 41 is greater than or equal to the secant length of the circle corresponding to the connection point between the connecting arm 4 and the brake arm 21 when the brake arm 21 swings to the deceleration clutch 2 in the first working state.

[0056] In the present invention, the connecting arm 4 is provided with a slideway 41 along the direction of the connection line between the brake arm 21 and the piston, wherein the above-mentioned sliding part is slidably connected with the slideway 41. Specifically, when the end of the sliding direction of the sliding part and the slideway 41 has a stopper, that is, when the driving mechanism 3 drives the connecting arm 4 to move and the brake arm 21 of the deceleration clutch 2 realizes a certain angle of rotation, so that the reducer shaft is connected with the dehydration shaft of the inner barrel, the sliding part just slides to the end of the slideway 41. At this time, it is also the starting position for the connecting arm 4 to start pulling the piston in the next stage.

[0057] The driving mode of the connecting arm 4 for the brake arm 21 is related to the connection mode between the two. Specifically, when the connecting arm 4 is hinged with the brake arm 21, the height of the hinge point of the connecting arm 4 and the brake arm 21 will change on the rotation path of the brake arm 21, that is, at this time, the connection between the sliding part and the piston, the driving mechanism 3 and the connecting arm 4 is connected by soft materials, so as to adapt to the situation of the hinge of the connecting arm 4 and the brake arm 21. At this time, the sliding distance of the sliding part on the slideway 41 is at least the length of the secant corresponding to the swing angle on the circle where the hinge point is located when the entire brake arm 21 swings to the brake wheel in a relaxed state. This ensures that the piston of the water inlet valve will not be pulled in advance, resulting in premature drainage.

[0058] Furthermore, a slideway 41 along the piston movement direction is arranged on the side wall of the connecting arm 4 , and the sliding part is slidably arranged in the slideway 41 .

[0059] The connecting arm 4 is slidably disposed on the brake arm 21 of the deceleration clutch 2, and the extension length of the slideway 41 is greater than or equal to the linear distance that the brake arm 21 moves along the piston movement direction when the deceleration clutch 2 swings to the first working state.

[0060] In the present invention, it is substantially the same as the above-mentioned embodiment, but at this time, since the connection between the connecting arm 4 and the brake arm 21 is a sliding connection, when the driving mechanism 3 is driven, the movement direction of the entire connecting arm 4, the sliding part and the piston can be on the same straight line. And the entire sliding distance when the driving mechanism 3 drives the sliding part in the connecting arm 4 to reach the end of the slideway 41 is the minimum, that is, the minimum setting length of the slideway 41 can be the straight line distance that the connecting arm 4 or the brake arm 21 moves along the movement direction of the piston when the brake arm 21 swings to the brake wheel in a relaxed state. Compared with the above-mentioned hinged connection between the connecting arm 4 and the brake arm 21, the driving force of the driving mechanism 3 is always on the same straight line with the connecting arm 4 and the piston, the required driving force will be smaller, and the overall length of the connecting arm 4 or the length of the slideway 41 will be lower.

[0061] Further, the number of the sliding parts is two;

[0062] The connecting arm 4 is provided with two slideways 41 which are slidably matched with the sliding part.

[0063] The two slideways 41 are symmetrically arranged with respect to the perpendicular midline of the length of the connecting arm 4 along the piston movement direction.

[0064] In the present invention, two slideways 41 are correspondingly arranged on the connecting arm 4, which are symmetrically arranged about the perpendicular midline of the arm length, and are both extended along the direction of piston movement. At this time, the driving end of the driving mechanism 3 can be connected to the sliding part in one of the slideways 41. By symmetrically arranging the slideways 41, the sum of the lengths of the two slideways 41 is equal to the above-mentioned single slideway 41 connected to the piston, so the slideway 41 can be relatively short, thereby increasing the structural strength of each slideway 41.

[0065] Furthermore, the sliding part includes a sliding block and a pull rope 5 .

[0066] The slider is slidably disposed in the slideway 41;

[0067] One end of the pull rope 5 is connected to the corresponding slider, and the other end is connected to the piston or the driving end of the driving mechanism 3.

[0068] In the present invention, the overall sliding part includes a slider and a pull rope 5, wherein the slider can be cylindrical, prismatic or spherical, the slider is slidably connected to the slideway 41, and is connected to the driving end or piston of the driving mechanism 3 through the pull rope 5. The setting of the pull rope 5 can realize the connection and disassembly with the driving end or piston of the driving mechanism 3 more conveniently and flexibly.

[0069] Furthermore, the connecting arm 4 is provided with two strip-shaped openings extending along the piston movement direction;

[0070] First sliding walls 411 are provided on both sides of the extension direction of the strip opening, protruding from the upper side or the lower side of the connecting arm 4 and extending outward; the two first sliding walls 411 are bent toward opposite sides to form second sliding walls 412, and there is a spacing between the two second sliding walls 412 to form the slideway 41.

[0071] In the present invention, a strip opening extending in the direction of piston movement is symmetrically provided on the connecting arm 4, wherein the strip opening is provided with a first sliding wall 411 perpendicular to its surface on its extended edge, and the extending ends of the two first sliding walls 411 are provided with a second sliding wall 412 in a direction in which the two first sliding walls 411 approach each other. There is a gap 413 between the two second sliding walls 412, thereby forming the slideway 41. The outer diameter of the slider is larger than the gap 413 between the two second sliding walls 412. In a specific implementation, the slider is against the slideway 41 with an open bottom surrounded by the first sliding wall 411 and the second sliding wall 412, and a pulling force is applied by the pull rope 5 to drive the slider to slide relative to the slideway 41.

[0072] Furthermore, the two second sliding walls 412 are provided with notches near the center of the connecting arm 4 , and the two notches form a first through opening 42 , and the opening size of the first through opening 42 is larger than the outer diameter of the sliding block.

[0073] In the present invention, a first opening 42 is provided in any one of the two second sliding walls 412, the opening of the first opening 42 is larger than the outer diameter of the slider, and the first opening 42 is connected to the spacer 413. Thus, it can be ensured that during assembly, the slider can slide relative to the slideway 41 with an open bottom formed by the first sliding wall 411 and the second sliding wall 412 by only passing the slider through the first opening 42. Similarly, notches can be provided on the two second sliding walls 412, respectively, and the two notches constitute the above-mentioned first opening 42.

[0074] Furthermore, a second opening 43 is provided on the side wall of the connecting arm 4 between the two slideways 41, a plug rod 44 extending along the piston movement direction is provided on the side wall close to the driving mechanism 3, and a socket slidably connected to the plug rod 44 is provided on the brake arm 21, and a clearance fit is provided between the plug rod 44 and the socket.

[0075] In the present invention, a second through hole 43 is provided at the center of the connecting arm 4, wherein a plug rod 44 extending along the piston movement direction is provided on the side of the second through hole 43 close to the driving mechanism 3, and a plug hole is provided on the brake arm 21, and a certain gap is formed between the plug hole and the plug rod 44 in a direction perpendicular to the piston movement direction. When installing the connecting arm 4, after the brake arm 21 passes through the second through hole 43 at the center of the connecting arm 4, the plug hole on the brake arm 21 is plugged into the plug rod 44 on the connecting arm 4, and the gap between the plug hole and the plug rod 44 ensures that when the connecting arm 4 is pulled, the brake arm 21 can rotate freely in the second through hole 43 and the plug hole.

[0076] Furthermore, two symmetrical brake arm claws 45 are provided on a side of the second opening 43 opposite to the side wall where the insertion rod 44 is provided, and the two brake arm claws 45 are extended from the connection point toward the direction of the insertion rod 44 .

[0077] In the present invention, two brake arm claws 45 are symmetrical about the perpendicular midline of the second opening 43 along the piston movement direction on the other side wall of the second opening 43 relative to the connecting rod 44, wherein the two brake arm claws 45 extend toward the direction close to the rod 44. By arranging the brake arm claws 45 and the rod 44 in the second opening 43, the brake arm 21 can be further limited to prevent the brake arm 21 from being separated from the connecting arm 4 during the rotation process.

[0078] Furthermore, the two brake arm claws 45 are gradually inclined and arranged close to each other along the extension direction thereof, and the minimum distance between the two is less than or equal to the width of the brake arm 21 .

[0079] In the present invention, the two brake arm claws 45 are symmetrical about the second opening 43 on the midline of the piston movement direction and gradually tilt toward the midline. The two brake arm claws 45 are made of elastic material. When the brake arm 21 is assembled on the connecting arm 4, it can be first inserted through the second opening 43 of the connecting arm 4 and the relatively large openings of the two brake arm claws 45, and then horizontally passed through the minimum spacing between the two brake arm claws 45 to squeeze and deform them, and then plugged with the plug rod 44 to complete the connection between the brake arm 21 and the connecting arm 4. Similarly, the limiting structure formed by the two brake arm claws 45 and the plug rod 44 can effectively prevent the brake arm 21 from falling off from the connecting arm 4.

[0080] The above description is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with this patent can make some changes or modifications to equivalent embodiments of equivalent changes by using the technical content suggested above without departing from the scope of the technical solution of the present invention. The implementation scheme in the above embodiment can also be further combined or replaced. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the scope of the solution of the present invention.

Claims

1. A washing machine, comprising: A drain valve (1) has a movable piston inside, and the open and closed states of the drain valve (1) are switched by the movement of the piston; The deceleration clutch (2) has a swingable brake arm (21), and the deceleration clutch (2) is switched to different working states by swinging the brake arm (21); A drive mechanism (3) having a retractable drive end; Features: Also includes, A connecting arm (4) is arranged on the brake arm (21) and is located between the drain valve (1) and the driving mechanism (3); A sliding part movable along the moving direction of the piston is provided on one side of the connecting arm (4), the sliding part is connected to the piston, and the other side is connected to the driving end of the driving mechanism (3).

2. A washing machine according to claim 1, characterized in that: A slideway (41) is arranged on the side wall of the connecting arm (4) along the movement direction of the piston, and the sliding part is slidably arranged in the slideway (41).

3. A washing machine according to claim 2, characterized in that: The number of sliding parts is two; The connecting arm (4) is provided with two slideways (41) which are slidably matched with the sliding part. The two slideways (41) are symmetrically arranged with respect to the perpendicular midline of the length of the connecting arm (4) along the piston movement direction.

4. A washing machine according to claim 3, characterized in that: The sliding part includes: A slider, slidably disposed in the slideway (41); A pull rope (5) has one end connected to a corresponding slider and the other end connected to a piston or a driving end of a driving mechanism (3).

5. A washing machine according to claim 4, characterized in that: The connecting arm (4) is provided with two strip-shaped openings extending in the direction of piston movement, and first sliding walls (411) are provided on both sides of the extending direction of the strip-shaped openings, protruding from the upper side or the lower side of the connecting arm (4) and extending outwards; The two first sliding walls (411) are bent toward opposite sides to form a second sliding wall (412), and a distance is provided between the two second sliding walls (412) to form the slideway (41).

6. A washing machine according to claim 5, characterized in that: A first through opening (42) is provided at a distance between the two second sliding walls (412) and close to the center of the connecting arm (4), and the opening size of the first through opening (42) is larger than the outer diameter of the sliding block.

7. A washing machine according to any one of claims 1 to 6, characterized in that: The connecting arm (4) is rotatably arranged on the brake arm (21) of the deceleration clutch (2); the extension length of the slideway (41) is greater than or equal to the length of the secant of the circle corresponding to the connection point between the connecting arm (4) and the brake arm (21) when the brake arm (21) swings to the deceleration clutch (2) in the first working state; Alternatively, the connecting arm (4) can be slidably disposed on the brake arm (21) of the deceleration clutch (2), and the extension length of the slideway (41) is greater than or equal to the linear distance that the brake arm (21) moves along the direction of piston movement when the deceleration clutch (2) swings to the first working state.

8. A washing machine according to claim 7, characterized in that: The connecting arm (4) is provided with a second opening (43) on the side wall between the two slideways (41), a plug rod (44) extending along the piston movement direction is provided on the side wall close to the driving mechanism (3), and a socket slidably connected to the plug rod (44) is provided on the brake arm (21), and a clearance fit is formed between the plug rod (44) and the socket.

9. A washing machine according to claim 8, characterized in that: Two symmetrical brake arm claws (45) are arranged on the side of the second opening (43) opposite to the side wall where the insertion rod (44) is arranged, and the two brake arm claws (45) are extended from the connection point toward the direction of the insertion rod (44).

10. A washing machine according to claim 9, characterized in that: The two brake arm claws (45) are gradually inclined and arranged close to each other along the extension direction thereof, and the minimum distance between the two is less than or equal to the width of the brake arm (21).

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