A laundry machine belt reversing mechanism and a laundry machine

Abstract

The application discloses a washing machine pull belt reversing mechanism and a washing machine. The washing machine pull belt reversing mechanism comprises a linkage cam rotating around an axial direction, a first pull belt connecting piece is arranged on the linkage cam, and the first pull belt connecting piece reciprocatingly swings with the rotation of the linkage cam; a washing support is a plate-shaped structure, a first through hole is formed in the washing support, and an inner side wall of the first through hole has an arc; a pull belt guide ring is arranged in the first through hole and rotates around an axial direction of the first through hole, and the pull belt guide ring is provided with a hollow second through hole. According to the application, when the pull belt is pulled by external force, the pull belt guide ring rotates and moves at the same time, a torsion force buffering area and time are formed, the action time and the action angle of the external force on the pull belt are buffered, the pull belt is prevented from suddenly breaking, and the service life of the pull belt is prolonged.

Description

Technical Field

[0001] This invention belongs to the field of washing machines, specifically, it relates to a washing machine pull belt reversing mechanism and a washing machine. Background Technology

[0002] As people's living standards continue to improve, washing machines have gradually become one of the essential home appliances. After washing, clothes need to be drained and dehydrated.

[0003] Existing technology uses a drain device where the pull strap passes directly through the through hole of the washing bracket. During the draining process, when the drain is started manually, the pull strap in the draining mechanism is subjected to a sudden pulling force. Furthermore, the two ends of the pull strap are not in the same plane or parallel, resulting in a phenomenon of one side deflecting while the other is stretched. This can easily cause twisting and wear at the turning connection point, eventually leading to breakage and causing the washing machine to lose its draining function, thus affecting the customer's usage and satisfaction.

[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 pull belt reversing mechanism. By setting a pull belt guide ring on the washing support, when the pull belt is under force, its torsional part can rotate and reverse with the pull belt guide ring, forming a torque buffer area and time, extending the service life of the pull belt and improving the effect of the drainage device.

[0006] Another object of the present invention is to provide a washing machine including the washing machine pull belt reversing mechanism described above.

[0007] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by the present invention is: a washing machine pull belt reversing mechanism, comprising:

[0008] A linkage cam rotates around its axis, and a first pull belt connector is provided on the linkage cam, which reciprocates with the rotation of the linkage cam.

[0009] A wash support, wherein the wash support is a plate-shaped structure with a first through hole, and the inner wall of the first through hole has a curvature;

[0010] A pull belt guide ring is disposed in the first through hole and rotates around the axis of the first through hole. The pull belt guide ring is provided with a hollow second through hole.

[0011] As described above, by setting a belt guide ring on the wash support, the linkage cam rotates and swings when it receives a drainage command, causing the belt passing through the belt guide ring to twist while simultaneously displacing along the direction of tension as the linkage cam swings. At this time, the belt guide ring can rotate on the wash support as the belt twists, relieving the sudden torsional force on the belt and providing a buffer time to prevent the belt from suddenly breaking. During rotation, the belt guide ring continuously adapts to the direction of the belt, reducing the torque between the belt and the belt guide ring and improving the response speed of the belt.

[0012] Furthermore, the pull belt guide ring includes:

[0013] The main body is disposed within the first through hole;

[0014] The positioning wall is formed by extending radially from one side of the body and is fitted and connected to the side of the wash support.

[0015] The pull belt guide ring body and the first through hole are engaged, and the pull belt guide ring is attached to the side of the wash support through the positioning wall, so that the pull belt guide ring cannot fall off from the positioning wall side.

[0016] Furthermore, at least one radially protruding claw is provided on the side of the body away from the positioning wall, and the claw engages with the wall surface of the wash support.

[0017] Preferably, the multiple claws on the pull belt guide ring are evenly distributed along the circumference.

[0018] At least one outwardly protruding claw is provided on the side of the pull belt guide ring away from the positioning wall; preferably, multiple claws can be provided, and the claws are evenly distributed along the circumference, which is beneficial to the balance of force and the convenience of processing.

[0019] Furthermore, the material of the claw is elastic.

[0020] The material and structure of the claw ensure that it has elastic deformation. When the pull belt guide ring is inserted into the wash support and the positioning wall is attached to the side wall of the wash support, the claw elastically deforms from the pressure and returns to its original shape. The protruding claw is attached to the other side wall of the wash support, so that the pull belt guide ring cannot automatically detach from the wash support when there is no external force.

[0021] Furthermore, the second through hole on the pull belt guide ring is an elongated slot.

[0022] Setting the second through hole on the pull belt guide ring as an elongated slot facilitates the smooth sliding of the pull belt plane within the slot, preventing it from flipping and knotting. The length of the slot is greater than the width of the pull belt, making it easier for the pull belt to pass through the pull belt guide ring for installation. It also mitigates the impact of tension when the pull belt rotates together with the pull belt guide ring, thus extending the service life of the pull belt.

[0023] Furthermore, the inner wall of the slot is a plane in the length direction with a smooth surface, and the curved surface of the inner wall in the width direction smoothly transitions to the plane with a smooth surface.

[0024] The inner wall of the slot of the pull belt guide ring is made into a plane in the length direction, and the curved surface of the inner wall in the width direction is smoothly transitioned to the plane, which is easy to process and manufacture. The smooth surface helps the pull belt to slide smoothly on the plane of the slot without flipping or knotting, and also prevents the pull belt from being scratched by protrusions in the slot.

[0025] Furthermore, the edges of the slot are rounded for a smooth finish.

[0026] Rounding the edges of any part of the slot creates a smooth surface, preventing burrs from scratching the pull belt and ensuring that the pull belt bends naturally and slides smoothly at the edge of the slot in the pull belt guide ring.

[0027] Furthermore, a washing machine includes the aforementioned belt reversing mechanism.

[0028] Adding a pull belt reversing mechanism inside the washing machine helps extend the lifespan of the pull belt, ensures a comfortable user experience during washing machine use, and achieves user satisfaction and recognition.

[0029] Furthermore, it also includes

[0030] The drainage switching knob is set coaxially with the linkage cam.

[0031] The drain valve is equipped with a second pull strap connector;

[0032] The pull strap has one end connected to the first pull strap connector and the other end connected to the second pull strap connector. The pull strap passes through the second through hole of the pull strap guide ring.

[0033] The pull belt reversing mechanism, drain switching knob, drain valve, and pull belt work together to complete the washing machine's draining action. One end of the pull belt is connected to the first pull belt connector, and the other end is connected to the second pull belt connector. The two end faces are not in the same plane or parallel. By adding a pull belt guide ring, the twisting of the pull belt rotates simultaneously with the pull belt guide ring, which alleviates the sudden tension and duration of the action, and extends the service life of the pull belt.

[0034] Furthermore, the pull strap is a long strip-shaped connecting strap with a certain width.

[0035] By increasing the width of the pull belt, the pull belt becomes more resilient and less prone to breakage, and it also ensures that the pull belt slides smoothly and is less likely to overturn when moving within the pull belt guide ring.

[0036] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art.

[0037] 1. The present invention provides a belt guide ring on the wash support, which allows the belt guide ring to rotate freely on the wash support as the belt is pulled up, thus providing a buffering force to the belt and preventing the belt from breaking due to sudden force.

[0038] 2. By incorporating a guide ring, this invention increases the allowable width of the pull belt and the contact area between the pull belt and the guide ring, allowing the pull belt to move smoothly within the smooth through-hole of the guide ring. It also prevents damage to the pull belt caused by burrs and twisting friction when placed on a normal wall surface, thus extending the service life of the pull belt.

[0039] The specific embodiments of the present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0040] The accompanying drawings, as part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments and descriptions of the invention are used to explain the invention, but do not constitute an undue limitation of the invention. Obviously, the drawings described below are merely some embodiments, and those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings:

[0041] Figure 1 This is a schematic diagram of the belt reversing mechanism of the present invention;

[0042] Figure 2 yes Figure 1 A three-dimensional schematic diagram of the guide ring in the middle tension belt;

[0043] Figure 3 This is a schematic diagram of the connection of a drainage device with a pull strap reversing mechanism in a washing machine according to the present invention;

[0044] Figure 4 This is an assembly schematic diagram of the belt reversing mechanism of the present invention;

[0045] In the picture:

[0046] 1. Linkage cam; 11. First pull belt connector;

[0047] 2. Washing support; 21. First through hole;

[0048] 3. Guide ring for pull strap; 31. Second through hole; 311. Slot; 32. Body; 33. Positioning wall; 34. Claw;

[0049] 4. Drainage switching knob;

[0050] 5. Drain valve; 51. Second pull strap connector; 52. Spring; 53. Valve core; 54. Valve body;

[0051] 6. Pull strap.

[0052] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the invention in any way, but rather to illustrate the concept of the invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0053] To make the objectives, 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 accompanying drawings. The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0054] In the description of this invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0055] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0056] like Figures 1 to 4 As shown, the present invention provides a washing machine and its belt reversing mechanism.

[0057] The washing machine pull belt reversing mechanism includes a linkage cam 1, a washing support 2, and a pull belt guide ring 3.

[0058] A linkage cam rotates around its axis, and a first pull belt connector is provided on the linkage cam, which reciprocates with the rotation of the linkage cam. The wash support is a plate-shaped structure with a first through hole, the inner wall of which is curved. A pull belt guide ring is disposed in the first through hole and rotates around the axis of the first through hole. The pull belt guide ring has a hollow second through hole.

[0059] The washing machine also includes a drain switching knob, a drain valve, and a pull strap. The drain switching knob is coaxially arranged with the linkage cam; the drain valve is provided with a second pull strap connector; one end of the pull strap is connected to the first pull strap connector, and the other end is connected to the second pull strap connector, and the pull strap passes through the second through hole of the pull strap guide ring.

[0060] like Figure 1 As shown, the linkage cam 1 described in this embodiment can rotate around its axis. The linkage cam 1 is provided with a first pull belt connector 11, which performs reciprocating oscillating motion as the linkage cam 1 rotates.

[0061] The linkage cam 1 is configured to convert its rotational motion into the reciprocating swing motion of the first pull belt connector 11, thereby reducing the twist angle of the pull belt.

[0062] Preferably, the first pull strap connector 11 is a hook-shaped component that can be directly hooked onto the pull strap 6. This connection method is very simple to operate and easy to manufacture.

[0063] The washing support 2 is a plate-shaped structure with a first through hole 21. The inner wall of the first through hole 21 is curved. The washing support 2 can be detachably connected to the control panel of the washing machine and also serves as a reinforcing rib of the control panel.

[0064] The pull belt guide ring 3 is disposed in the first through hole 21 and rotates around the axis of the first through hole 21. The pull belt guide ring 3 is provided with a hollow second through hole 31, through which the pull belt 6 can be inserted.

[0065] The guide ring 3 automatically adjusts the torsion angle of the pull belt 6 by rotating on the washing bracket according to the torque of the pull belt 6, providing the pull belt 6 with a buffer area and time for torque, preventing the pull belt 6 from breaking under sudden stress, and greatly increasing the service life of the pull belt.

[0066] like Figure 2 As shown, the pull belt guide ring 3 includes a body 32 and a positioning wall 33.

[0067] The main body 32 is disposed in the first through hole 21 and is connected to the first through hole 21 to prevent the main body 32 from being too loose in the first through hole 21.

[0068] The positioning wall 33 extends radially outward from one side of the body 32 and is fitted and connected to the side of the wash support 2. By fitting the positioning wall 33 to the side of the wash support 2, the pull belt guide ring 3 cannot fall off from the side of the positioning wall 33.

[0069] Preferably, the first through hole 21 on the wash support 2 can be set as a circular hole, and the body 32 of the pull belt guide ring 3 is a cylindrical structure. The pull belt guide ring 3 can rotate freely in the first through hole 21. The circular hole and the cylindrical body also facilitate the selection of raw materials and cutting tools and simplify the processing technology, thereby improving production efficiency.

[0070] At least one outwardly protruding claw 34 is provided on the side of the main body 32 away from the positioning wall 33, and the claw 34 engages with the wall surface of the wash support 2.

[0071] Preferably, the multiple claws 34 on the pull belt guide ring 3 are evenly distributed along the circumference, which is beneficial to the balance of force on the claws 34 and the convenience of processing when installing and disassembling the pull belt guide ring 3.

[0072] The material and structure of the claw 34 should ensure that it has elastic deformation. When the pull belt guide ring 3 is inserted into the wash support 2 and the positioning wall 33 is attached to the side wall of the wash support 2, the claw 34 will elastically deform under pressure and return to its original shape. The protruding claw 34 will be attached to the other side wall of the wash support 2, so that the pull belt guide ring 3 cannot automatically detach from the wash support 2 when there is no external force.

[0073] The second through hole 31 on the pull belt guide ring 3 is an elongated slot 311, the length of which is greater than the width of the pull belt 6. The surface of the slot 311 along its length is a plane with a smooth surface, and the curved surface at the end smoothly transitions to the plane with a smooth surface.

[0074] The second through hole 31 on the pull belt guide ring 3 is set as an elongated slot 311. The inner sidewall of the slot 311 is set as a plane in the length direction, and the curved surface of the inner sidewall in the width direction smoothly transitions with the plane. This is conducive to the smooth sliding of the pull belt 6 in the slot 311 without flipping or knotting. The length of the slot 311 is larger than the width of the pull belt 6, which makes it easier for the pull belt 6 to pass through the pull belt guide ring 3 for installation. When the pull belt 6 rotates together with the pull belt guide ring 3, it can alleviate the impact caused by the tension and extend the service life of the pull belt 6.

[0075] The inner wall of the slot 311 is made into a plane in the length direction, and the curved surface of the inner wall in the width direction is smoothly transitioned to the plane. This facilitates processing and manufacturing, controls the surface roughness, and prevents the protrusions in the slot 311 from scratching the pull belt 6, causing damage to the pull belt 6 and reducing its service life.

[0076] The second through hole 31 should not be a round hole, because round holes are prone to causing the pull belt 6 to twist during operation. Over time, this will form a twisted shape. During the stretching motion, excessive torque can easily cause the pull belt 6 to break suddenly, severely reducing the service life of the pull belt 6.

[0077] The groove 311 uses rounded corners at any edge, and the surface is smooth to prevent burrs from scratching the pull strap 6 and to ensure that the pull strap 6 slides smoothly in the groove 311.

[0078] Preferably, the material of the pull belt guide ring 3 is a self-lubricating material, such as oil-impregnated nylon, graphite synthetic resin, etc., or it is surface-plated with bright nickel or chromium.

[0079] like Figure 3As shown, during the execution of the drainage command, the belt reversing mechanism needs to work in conjunction with the drainage switching knob 4, the drainage valve 5, and the belt 6.

[0080] The drain switching knob 4 is located outside the control panel of the washing machine and is coaxially set with the linkage cam 1 inside the control panel, rotating synchronously.

[0081] The drain valve 5 includes a valve body 54, a spring 52 and a valve core 53, with a second pull strap connector 51 provided on the upper part of the valve core 53; the spring 52 connects the valve body 54 and the valve core 53.

[0082] The drain valve 5 is an important drainage mechanism inside the washing machine. Its valve body 54 has at least three openings. The first opening is the inlet for sewage to enter the valve body 54; the second opening is the outlet for sewage to exit the valve body 54; the third opening is located between the inlet and the outlet, where the valve core 53 and spring 52 and other related shut-off components are installed, and a sealing element and a sealing cover are provided. Under normal conditions, the drain valve 5 is in the closed state. The valve core 53 blocks the passage space between the inlet and outlet inside the valve body 54 through the sealing element, so that sewage does not flow out.

[0083] The third outlet also serves as a cleaning outlet. After long-term use, dirt, lint, and other debris will accumulate inside the drain valve 5, which may clog the drain valve 5 or prevent the valve core 53 of the drain valve 5 from operating. In this case, by opening the third opening and cleaning out the debris accumulated here, the operation of the drain valve 5 can be restored.

[0084] Preferably, the second pull strap connector 51 is a hook-shaped component that can be directly hooked onto the pull strap 6. This connection method is very simple to operate and easy to manufacture.

[0085] One end of the pull strap 6 is connected to the first pull strap connector 11, and the other end is connected to the second pull strap connector 51; the pull strap 6 is disposed through the second through hole 31 of the pull strap guide ring 3.

[0086] Preferably, a tensioner is provided on the pull belt 6. After the pull belt 6 is installed on the first connector and the second connector, in order to prevent the pull belt 6 from being too long, a tensioner that can adjust the length of the pull belt 6 should be provided so that the adjusted length of the pull belt 6 can be used to sensitively realize the drainage action. At this time, the locking part on the tensioner is locked to fix the length of the pull belt 6.

[0087] By setting a tensioner, after the washing machine has been used for a period of time, when the elasticity of the pull belt 6 deteriorates due to long-term stress and the length of the pull belt 6 becomes less sensitive to drainage, the length of the pull belt 6 can be readjusted using the tensioner, thus avoiding the increase in procurement costs due to directly replacing the pull belt 6.

[0088] like Figure 4As shown, when the drainage command is executed and the drainage valve 5 is opened, the drainage switching knob 4 is first rotated to the drainage position. The drainage switching knob 4 drives the linkage cam 1 to rotate synchronously at a certain angle. The first pull belt connector 11 located on the linkage cam 1 also moves a certain distance, from the first position to the second position, so that the pull belt 6 fixed at the first pull belt member is subjected to tension and moves a corresponding distance, thereby making the pull belt 6 move as a whole to achieve the lifting action.

[0089] The other end of the pull strap 6 is fixed to the second pull strap component. As the pull strap moves, the second pull strap component fixed to the valve core 53 is also lifted a certain distance. At this time, the torque acting on the drain switching knob 4 is much greater than the tension of the spring 52 at the valve core 53. The valve core 53, which was originally closed, is lifted and moved upward, forming a space channel with the valve body 54 that allows water to flow in the washing machine, thus realizing the opening state of the drain valve 5.

[0090] Due to limitations in the assembly structure, the first and second pull belt components are not in the same plane or parallel. When the pull belt 6 passes through the wash support 2, the end of the pull belt 6 connected to the first pull belt component also changes direction. During the movement, it twists while moving. By setting a pull belt guide ring 3 on the wash support 2, the linkage cam 1 rotates and swings when it receives a drainage command, causing the pull belt 6 passing through the pull belt guide ring 3 to twist while displacing along the direction of tension with the swing of the linkage cam 1. At this time, the pull belt guide ring 3 can rotate on the wash support 2 with the twisting of the pull belt 6, relieving the sudden torsional force on the pull belt 6 and providing a buffer time to prevent the pull belt 6 from suddenly breaking. During the rotation, the pull belt guide ring 3 continuously adapts to the direction of the pull belt 6, reducing the torque between the pull belt 6 and the pull belt guide ring 3, which helps to extend the service life of the pull belt 6 and improves the response speed of the pull belt 6.

[0091] Preferably, the pull strap 6 is a long strip-shaped connecting strap with a certain width. In this way, the pull strap 6 increases the cross-sectional area, has better toughness, and the width of the pull strap 6 also makes it easier to fit with the plane inside the second through hole 31 of the pull strap guide ring 3, and also prevents the pull strap 6 from twisting multiple times during movement.

[0092] After the sewage is drained, the valve core 53 resets, and the process of closing the drain valve 5 is as follows: Rotate the drain switching knob 4 in the reverse direction, and the linkage cam 1 rotates accordingly. The first pull belt connector 11 on the linkage cam 1 resets from the second position to the first position, causing the pull belt 6 to move downwards as a whole. During this downward movement, the pull belt guide ring 3 rotates again with the movement of the pull belt 6, adapting to the angle of twist of the pull belt 6 and reducing the torque on the pull belt 6. As the pull belt 6 moves downwards, it is in a relaxed state with the tension removed. The valve core 53 located at the second pull belt connector is subjected to the elastic force of the lower spring 52 restoring its elastic deformation, causing the valve core 53 to sink, cutting off the communication space inside the valve body 54, and realizing the action of closing the drain.

[0093] By adding a pull belt reversing mechanism inside the washing machine, the pull belt 6 automatically rotates and adjusts during the drain opening and closing actions, forming a torque buffer zone and time. This reduces the torque action time and angle on the pull belt 6, effectively extending its service life and ensuring a comfortable user experience during washing machine use, thereby achieving user satisfaction and recognition.

[0094] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A laundry machine belt reversing mechanism: characterized by, The utility model relates to a washing machine, including: A linkage cam rotates around its axis direction, the first pull belt connector is arranged on the linkage cam, and reciprocating swing movement is made along with the rotation of the linkage cam; A washing support is a plate structure and is detachably connected to the operation panel of the washing machine, a first through hole is opened, and the inner side wall of the first through hole has an arc; A pull belt guide ring is arranged in the first through hole and rotates around the axis direction of the first through hole, the pull belt guide ring is provided with a hollow second through hole, the second through hole is a long strip-shaped slot, the pull belt is a long strip-shaped connecting belt with a certain width and is arranged through the second through hole of the pull belt guide ring, and the pull belt guide ring automatically adjusts the torsion angle of the pull belt in the rotating mode on the washing support along with the torsion force of the pull belt; The utility model further includes: The body is arranged in the first through hole; 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.

2. A laundry machine belt reversing mechanism according to claim 1 wherein: The side of the body away from the positioning wall is provided with at least one clamping jaw protruding in the radial direction, and the clamping jaw is clamped with the wall surface of the washing support.

3. A laundry machine belt reversing mechanism according to claim 2 wherein: The clamping jaws on the pull belt guide ring are circumferentially distributed.

4. A laundry machine belt reversing mechanism according to claim 3 wherein: The material of the clamping jaw has elasticity.

5. A laundry machine belt reversing mechanism according to any one of claims 1 to 4 wherein: The inner side wall of the slot is a plane in the length direction and is smooth, and the inner side wall is a curved surface in the width direction, the curved surface and the plane are smoothly connected, and the surface is smooth.

6. A laundry machine belt reversing mechanism according to claim 1 wherein: Any edge line of the slot uses a round corner transition, and the surface is smooth.

7. A laundry machine characterised by: The utility model further includes:

8. A laundry washing machine according to claim 7, characterized in that: A drainage switching knob is coaxially arranged with the linkage cam; A drainage valve is provided with a second pull belt connector; One end of the pull belt is connected with the first pull belt connector, and the other end is connected with the second pull belt connector. ​

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