1. A pull belt reversing mechanism of a washing machine comprises: it is characterized by comprising:

the linkage cam rotates around the axis direction of the linkage cam, and a first pull belt connecting piece is arranged on the linkage cam and does reciprocating swing motion along with the rotation of the linkage cam;

the washing support is of a plate-shaped structure, a first through hole is formed in the washing support, and the inner side wall of the first through hole is provided with a radian;

and the drawstring guide ring is arranged in the first through hole and winds the first through hole to rotate in the axis direction, and the drawstring guide ring is provided with a hollow second through hole.

2. The draw tape reversing mechanism for a washing machine as claimed in claim 1, wherein: the draw tape guide ring comprises:

the body is arranged in the first through hole;

and the positioning wall is formed by extending one side of the body along the radial direction and is attached to the side surface of the washing support.

3. The draw tape reversing mechanism for a washing machine as claimed in claim 2, wherein: one side of the body, which is far away from the positioning wall, is at least provided with a claw which protrudes along the radial direction, and the claw is clamped with the wall surface of the washing support;

preferably, a plurality of claws on the pull belt guide ring are uniformly distributed along the circumference.

4. The draw tape reversing mechanism for a washing machine as claimed in claim 3, wherein: the material of the jaw is elastic.

5. The washing machine belt puller reversing mechanism according to any one of claims 1 to 4, characterized in that: the second through hole on the drawstring guide ring is a slotted hole in a long strip shape.

6. The draw tape reversing mechanism for a washing machine as claimed in claim 5, wherein: the inner side wall of the slotted hole is a plane in the length direction and has a smooth surface, the inner side wall is a curved surface in the width direction, and the curved surface and the plane are in smooth transition and have smooth surfaces.

7. The draw tape reversing mechanism for a washing machine as claimed in claim 5, wherein: and any side line of the slotted hole is in fillet transition, and the surface is smooth.

8. A washing machine characterized by: comprising the draw tape diverter mechanism of any one of claims 1-7.

9. A washing machine as claimed in claim 8, characterized in that: also comprises

The drainage switching knob is coaxially arranged with the linkage cam;

the drain valve is provided with a second pull belt connecting piece;

the drawstring, one end with first drawstring connecting piece is connected, the other end with second drawstring connecting piece is connected, the drawstring passes the second through-hole setting of drawstring guide ring.

10. A washing machine as claimed in claim 9, wherein: the drawstring is a strip-shaped connecting belt with a certain width.

Background

With the increasing living standard of people, the washing machine has become one of the necessary household appliances in the family, and the washed clothes need to be drained and dehydrated.

The drainage device of the prior art uses the drawstring to directly pass through the through hole of the washing support, in the drainage process, when the drainage is started in a manual mode, the drawstring in the drainage mechanism is subjected to suddenly applied pulling force, two end parts of the drawstring are not in the same plane and are not parallel, the phenomena of deflection and stretching movement can occur at the same time, the turning joint of the drawstring is easy to distort and wear until the drawstring is broken, the washing machine loses the drainage function, and the using effect and the satisfaction degree of a customer are influenced.

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

Disclosure of Invention

The technical problem to be solved by the invention is to overcome the defects of the prior art and provide a strap reversing mechanism of a washing machine, wherein a torsion part of a strap can be reversed along with the rotation of a strap guide ring when the strap is stressed by arranging the strap guide ring on a washing support, so that a torsion buffer area and time are formed, the service life of the strap is prolonged, and the effect of a drainage device is improved.

The invention also provides a washing machine, which comprises the pull belt reversing mechanism of the washing machine.

In order to solve the technical problems, the invention adopts the technical scheme that: a washing machine belt reversing mechanism comprises:

the linkage cam rotates around the axis direction of the linkage cam, and a first pull belt connecting piece is arranged on the linkage cam and does reciprocating swing motion along with the rotation of the linkage cam;

the washing support is of a plate-shaped structure, a first through hole is formed in the washing support, and the inner side wall of the first through hole is provided with a radian;

and the drawstring guide ring is arranged in the first through hole and winds the first through hole to rotate in the axis direction, and the drawstring guide ring is provided with a hollow second through hole.

Therefore, the pull belt guide ring is arranged on the washing support, so that the linkage cam rotates and swings when receiving a drainage command, the pull belt penetrating through the pull belt guide ring is driven to do torsional motion while moving along the pulling force direction along with the swinging of the linkage cam, and at the moment, the pull belt guide ring can do rotational motion on the washing support along with the twisting of the pull belt, so that the torsional force suddenly applied to the pull belt is relieved, the buffering time is also obtained, and the pull belt is prevented from being suddenly twisted off; the drawstring guide ring continuously adapts to the direction of the drawstring in the rotating process, so that the torsion of the drawstring and the drawstring guide ring is reduced, and the response speed of the drawstring is improved.

Further, the draw tape guide ring comprises:

the body is arranged in the first through hole;

and the positioning wall is formed by extending one side of the body along the radial direction and is attached to the side surface of the washing support.

The body of the drawstring guide ring is matched with the first through hole, and the drawstring guide ring can not fall off from the side of the positioning wall by fitting the positioning wall to the side of the washing support.

Furthermore, at least one clamping jaw protruding in the radial direction is arranged on one side, away from the positioning wall, of the body, and the clamping jaw is clamped with the wall surface of the washing support;

preferably, a plurality of claws on the pull belt guide ring are uniformly distributed along the circumference.

At least one claw which protrudes outwards is arranged on one side of the body of the drawstring guide ring away from the positioning wall; preferably, a plurality of clamping jaws can be arranged and are uniformly distributed along the circumference, so that the stress balance and the processing convenience are facilitated.

Further, the material of the jaw is elastic.

The material and the structure of jack catch guarantee that it is rich in elastic deformation, insert the stretching strap guide ring and wash the support and make the location wall with wash when the lateral wall laminating of support, the jack catch is from receiving pressure elastic deformation to replying former shape, and convex jack catch laminating is on washing the another side lateral wall of support, makes the stretching strap guide ring when no external force, can't break away from automatically and wash the support.

Furthermore, the second through hole on the drawstring guide ring is a strip-shaped slotted hole.

Set up the second through-hole on the stretching strap guide ring into long shape slotted hole, be favorable to the stretching strap plane to steadily slide in the slotted hole, do not overturn and tie a knot, the length of slotted hole is greater than the width of stretching strap, is favorable to the stretching strap to pass the installation of stretching strap guide ring more easily to when the stretching strap rotates together with the stretching strap guide ring, alleviate the impact that the pulling force brought, delay the life of stretching strap.

Furthermore, the inner side wall of the slot hole is a plane in the length direction and has a smooth surface, and the curved surface and the plane of the inner side wall in the width direction are in smooth transition and have a smooth surface.

The inner side wall of the groove hole of the guide ring of the pull belt is arranged to be a plane in the length direction, the curved surface of the inner side wall in the width direction is in smooth transition with the plane, the processing and the manufacturing are easy, the plane with the smooth surface is beneficial to the smooth sliding of the pull belt on the plane of the groove hole, the pull belt is not turned over and knotted, and the pull belt is prevented from being scratched by stabs in the groove hole.

Furthermore, any side line of the slotted hole is in fillet transition, and the surface is smooth.

The fillet transition is used at any side line of the slotted hole, the surface is smooth, the pull belt can be prevented from being scratched by the spurs, and the pull belt is ensured to be naturally bent and stably slide at the edge of the slotted hole of the pull belt guide ring.

Further, the washing machine comprises the pull belt reversing mechanism.

The pull belt reversing mechanism is additionally arranged in the washing machine, so that the service life of the pull belt is prolonged, the comfortable experience of a user in the process of using the washing machine is ensured, and the satisfaction degree and the recognition degree of the user are achieved.

Further, also includes

The drainage switching knob is coaxially arranged with the linkage cam;

the drain valve is provided with a second pull belt connecting piece;

the drawstring, one end with first drawstring connecting piece is connected, the other end with second drawstring connecting piece is connected, the drawstring passes the second through-hole setting of drawstring guide ring.

The pull belt reversing mechanism is matched with the drainage switching knob, the drainage valve and the pull belt together to finish the drainage action of the washing machine; stretching strap one end connect first stretching strap connecting piece, the other end with second stretching strap connecting piece is connected, and two terminal surfaces are not also nonparallel in the coplanar, through the stretching strap guide ring that increases the setting, make the stretching strap twist reverse along with the stretching strap guide ring is rotatory simultaneously, have alleviated pulling force and the operating time that suddenly received, have prolonged the life of stretching strap.

Further, the drawstring is a strip-shaped connecting belt with a certain width.

Through increasing the stretching strap width, make the stretching strap more have toughness and difficult fracture, also guaranteed that the stretching strap steadily slides when the motion is led to the intra-annular at the stretching strap, difficult upset.

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

1. According to the invention, the drawstring guide ring is arranged on the washing support, so that the drawstring guide ring can freely rotate on the washing support along with the pulling movement of the drawstring, and the drawstring is provided with buffering force to prevent the drawstring from breaking due to sudden force application.

2. According to the invention, the drawstring guide ring is arranged, so that the allowable use width of the drawstring is increased, the contact area between the drawstring and the drawstring guide ring is increased, the drawstring can smoothly move in the smooth through hole of the drawstring guide ring, the damage to the drawstring caused by burrs and torsional friction arranged on the common wall surface is avoided, and the service life of the drawstring is prolonged.

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 view of a strap reversing mechanism of the present invention;

FIG. 2 is a perspective view of the pull strip guide ring of FIG. 1;

FIG. 3 is a schematic view of the connection of a drain device with a strap reversing mechanism of a washing machine according to the present invention;

FIG. 4 is an assembled schematic view of the draw tape diverter mechanism of the present invention;

in the figure:

1. a linkage cam; 11. a first pull strap connector;

2. washing the support; 21. a first through hole;

3. a pull belt guide ring; 31. a second through hole; 311. a slot; 32. a body; 33. a positioning wall; 34. a claw;

4. a drain switching knob;

5. a drain valve; 51. a second draw tape connector; 52. a spring; 53. a valve core; 54. a valve body;

6. and a draw tape.

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.

As shown in fig. 1 to 4, the present invention provides a washing machine and a pull belt reversing mechanism thereof.

The belt-pulling reversing mechanism of the washing machine comprises a linkage cam 1, a washing support 2 and a belt-pulling guide ring 3.

The linkage cam rotates around the axis direction of the linkage cam, and a first pull belt connecting piece is arranged on the linkage cam and does reciprocating swing motion along with the rotation of the linkage cam. The washing support is of a plate-shaped structure, a first through hole is formed in the washing support, and the inner side wall of the first through hole is provided with a radian. The drawstring guide ring is arranged in the first through hole and winds the axis direction of the first through hole to rotate, and the drawstring guide ring is provided with a hollow second through hole.

The washing machine also comprises a drainage switching knob, a drainage valve and a pull belt. The drainage switching knob and the linkage cam are coaxially arranged; the drain valve is provided with a second pull belt connecting piece; the stretching strap one end with first stretching strap connecting piece is connected, the other end with second stretching strap connecting piece is connected, the stretching strap passes the second through-hole setting of stretching strap guide ring.

As shown in fig. 1, the linkage cam 1 according to the present embodiment can rotate around the axis direction thereof, and the linkage cam 1 is provided with a first strap connecting member 11 that reciprocates with the rotation of the linkage cam 1.

The arrangement of the linkage cam 1 converts the rotation motion into the reciprocating swing motion of the first drawstring connecting piece 11, and the twist angle of the drawstring is reduced.

Preferably, the first drawstring connector 11 is a hook-shaped member, and can be directly hooked with the drawstring 6. The connection mode is very simple to operate and easy to process and manufacture.

The washing support 2 is of a plate-shaped structure, a first through hole 21 is formed, and the inner side wall of the first through hole 21 has a radian; the washing support 2 is detachably connected to an operation panel of the washing machine and also has the function of a reinforcing rib as the operation panel.

The drawstring guide ring 3 is arranged in the first through hole 21 and winds the axial direction rotary motion of the first through hole 21, the drawstring guide ring 3 is provided with a hollow second through hole 31, and the drawstring 6 can be penetrated through the through hole.

The stretching strap guide ring 3 can automatically adjust the twisting angle of the stretching strap 6 along with the twisting force of the stretching strap 6 on the washing support in a rotating mode, provides the stretching strap 6 with a buffering area and time of the twisting force, prevents the stretching strap 6 from being broken in a suddenly stressed state, and greatly prolongs the service life of the stretching strap.

As shown in fig. 2, the draw tape guide ring 3 includes a body 32 and a positioning wall 33.

The body 32 is arranged in the first through hole 21 and is matched and connected with the first through hole 21; the body 32 is prevented from being too loose within the first through hole 21.

The positioning wall 33 is formed by extending one side of the body 32 outward along the radial direction and is connected with the side surface of the washing seat 2 in a fitting manner. The positioning wall 33 is attached to the side surface of the washing support 2, so that the pull belt guide ring 3 cannot fall off from the side of the positioning wall 33.

Preferably, wash first through-hole 21 on the support 2 can set up to the circular port, the body 32 of stretching strap guide ring 3 be cylindric structure, stretching strap guide ring 3 can first through-hole 21 in freely circumferential direction, and circular port and cylinder also be convenient for the selection of raw materials, cutter and the simplification of processing technology, improve production efficiency.

One side of the body 32, which is far away from the positioning wall 33, is at least provided with one claw 34 protruding outwards, and the claw 34 is clamped with the wall surface of the washing support 2.

Preferably, a plurality of claws 34 on the drawstring guide ring 3 are uniformly distributed along the circumference, which is beneficial to the balance of the stress of the claws 34 and the convenience of processing when the drawstring guide ring 3 is installed and disassembled.

Jaw 34's material and structure should guarantee that it is rich in elastic deformation, insert drawstring guide ring 3 and wash support 2 and make location wall 33 and wash when the lateral wall laminating of support 2, jaw 34 returns former shape from receiving pressure elastic deformation, and convex jaw 34 laminates on washing the another side lateral wall of support 2, makes drawstring guide ring 3 when no external force, can't break away from automatically and washes support 2.

The second through hole 31 of the drawstring guide ring 3 is a strip-shaped slot hole 311, and the length of the slot hole 311 is larger than the width of the drawstring 6. The surface of the slot 311 in the length direction is a plane, the surface is smooth, the curved surface of the end part is in smooth transition with the plane, and the surface is smooth.

Set up long shape slotted hole 311 with second through-hole 31 on the stretching strap guide ring 3, establish the inside wall of slotted hole 311 into the plane at length direction, the inside wall is at width direction's curved surface and plane rounding off, be favorable to 6 planes of stretching strap to steadily slide in slotted hole 311, the upset is knotd, the length of slotted hole 311 is big than stretching strap 6's width, be favorable to stretching strap 6 to pass stretching strap guide ring 3 installation more easily, and when stretching strap 6 rotates together with stretching strap guide ring 3, alleviate the impact that the pulling force brought, delay stretching strap 6's life.

The inner side wall of the slotted hole 311 is set to be a plane in the length direction, and the curved surface of the inner side wall in the width direction is in smooth transition with the plane, so that the processing and the manufacturing are facilitated, the roughness of the surface is controlled, the phenomenon that the drawstring 6 is scratched by a prickle in the slotted hole 311 to cause damage to the drawstring 6 is also prevented, and the service life is shortened.

The second through holes 31 do not use round holes as much as possible, because the round holes easily cause the drawstring 6 to twist in the operation process, the drawstring 6 can twist in a twist shape in the day and the month, when the drawstring moves, the drawstring 6 is easily broken suddenly due to overlarge torsion, and the service life of the drawstring 6 is seriously reduced.

Any side line of the slot hole 311 is in fillet transition, the surface is smooth, the pull belt 6 can be prevented from being scratched by a bur, and the pull belt 6 can be ensured to stably slide in the slot hole 311.

Preferably, the material of the drawstring guide ring 3 is a self-lubricating type material, such as one of oil-containing nylon, graphite synthetic resin, etc., or is treated by plating bright nickel or chromium on the surface.

As shown in fig. 3, during the process of executing the water discharging command, the pull strip reversing mechanism needs to cooperate with the water discharging switching knob 4, the water discharging valve 5 and the pull strip 6.

The drainage switching knob 4 is arranged outside an operation panel of the washing machine, is coaxially arranged with the linkage cam 1 inside the operation panel, and synchronously rotates.

The drain valve 5 includes a valve body 54, a spring 52 and a valve core 53, and a second draw tape connector 51 is provided at an upper portion of the valve core 53; the spring 52 connects the valve body 54 and the valve spool 53.

The drain valve 5 is an important drainage mechanism inside the washing machine, and the valve body 54 of the drain valve has at least three openings, wherein the first opening is an inlet of sewage into the valve body 54; the second opening is an outlet for the contaminated water from the valve body 54; the third opening is positioned between the inlet and the outlet, a valve core 53, a spring 52 and other related stopping pieces are arranged, and a sealing piece and a sealing cover are arranged; in a normal state, the drain valve 5 is in a closed state, and the valve core 53 blocks the passage space at the inlet and the outlet in the valve body 54 through a sealing element, so that sewage does not flow out.

The third outlet also has the function of a dirt cleaning port. After a long-term use, foreign substances such as dirt and thread scraps are accumulated in the drain valve 5, and the drain valve 5 is also blocked or the valve body 53 of the drain valve 5 is disabled to operate, and at this time, the operation of the drain valve 5 can be resumed by opening the third opening to clean the foreign substances accumulated therein.

Preferably, the second pull strip connector 51 is a hook-shaped member, and can be directly hooked with the pull strip 6. The connection mode is very simple to operate and easy to process and manufacture.

One end of the drawstring 6 is connected with the first drawstring connecting piece 11, and the other end is connected with the second drawstring connecting piece 51; the drawstring 6 is arranged through the second through hole 31 of the drawstring guide ring 3.

Preferably, the pull belt 6 is provided with a tensioner, after the pull belt 6 is installed on the first connecting piece and the second connecting piece, in order to prevent the pull belt 6 from being too long, the tensioner capable of adjusting the length of the pull belt 6 is arranged, so that the adjusted length of the pull belt 6 just can sensitively realize the drainage action; the locking piece on the tensioner is locked, so that the length of the pull belt 6 is fixed.

By arranging the tensioner, when the stretching belt 6 is stressed for a long time and the elastic force of the stretching belt 6 is reduced after the washing machine is used for a period of time, and the stretching length makes the drainage action insensitive, the tensioner can be used for adjusting the length of the stretching belt 6 again, so that the purchase cost is prevented from being increased due to direct replacement of the stretching belt 6.

As shown in fig. 4, when a drainage command is executed and the drainage valve 5 is opened, the drainage switching knob 4 is first rotated to switch to a drainage gear, and the drainage switching knob 4 drives the linkage cam 1 to synchronously rotate by a certain angle; the first drawstring connecting piece 11 on the linkage cam 1 also generates displacement with a certain distance, and moves from the first position to the second position, so that the drawstring 6 fixed at the first drawstring connecting piece is moved by a corresponding distance under the action of pulling force, and the whole drawstring 6 moves to realize the lifting action.

The other end of the drawstring 6 is fixed on the second drawstring piece, along with the movement of the drawstring, the second drawstring piece fixed on the valve core 53 is also lifted for a certain distance, at this time, the torsion acting on the drainage switching knob 4 is far greater than the tension of the spring 52 at the valve core 53, the valve core 53 in the original closed state is lifted upwards to move, and forms a space channel allowing the water in the washing machine to flow with the valve body 54, so as to realize the open state of the drainage valve 5.

The first and second strap members are not positioned in the same plane, nor are they parallel, as limited by the mounting structure. When the drawstring 6 passes through the washing support 2, the end of the drawstring 6 connected to the first drawstring part is changed in direction, and the drawstring can move and twist at the same time in the moving process, and the drawstring guide ring 3 is arranged on the washing support 2, so that the linkage cam 1 rotates and swings when receiving a drainage command, and the drawstring 6 passing through the drawstring guide ring 3 is driven to do twisting motion while moving along the tension direction along with the swinging of the linkage cam 1. At this moment, the drawstring guide ring 3 can rotate along with the twisting of the drawstring 6 on the washing support 2, so as to relieve the twisting force suddenly applied to the drawstring 6, obtain the buffering time and prevent the drawstring 6 from being suddenly twisted off. The drawstring guide ring 3 continuously adapts to the direction of the drawstring 6 in the rotating process, so that the torsion of the drawstring 6 and the drawstring guide ring 3 is reduced, the service life of the drawstring 6 is prolonged, and meanwhile, the response speed of the drawstring 6 is improved.

Preferably, the drawstring 6 is an elongated connecting strip having a certain width. Therefore, the cross-sectional area of the drawstring 6 is increased, the drawstring 6 has better toughness, the drawstring 6 with the width is easy to be matched with the plane in the second through hole 31 of the drawstring guide ring 3, and the drawstring 6 is prevented from being twisted for many times in the moving process.

After the sewage is drained, the valve core 53 resets, and the process of closing the drain valve 5 is as follows: the drainage switching knob 4 is rotated reversely, the linkage cam 1 rotates along with the rotation, the first pull belt connecting piece 11 on the linkage cam 1 is reset from the second position to the first position, the pull belt 6 moves downwards integrally, and in the downward moving process, the pull belt guide ring 3 rotates along with the movement of the pull belt 6 again to adapt to the torsional angle of the pull belt 6 and reduce the torsion force applied to the pull belt 6. Because the drawstring 6 moves downwards and is in a loose state of removing the pulling force, the valve core 53 positioned at the second connecting piece of the drawstring is subjected to the elastic force of the elastic deformation recovered by the lower spring 52, so that the valve core 53 sinks, the communication space in the valve body 54 is cut off, and the action of closing the drainage is realized.

Increase stretching strap reversing mechanism in the washing machine, in the action is opened and is closed in the drainage, through the adjustment of the rotatory angle autogiration of the torsion angle of following stretching strap 6, form the buffer zone region and the time of torsion, alleviate the angle of torsion action time and effort that stretching strap 6 received, can be effectual extension stretching strap 6's life, guarantee the comfortable experience of user in the use washing machine process, reach user's satisfaction and recognition.

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.