Clutch with drain sealing structure and washing machine

Abstract

The application provides a clutch with a sealing and draining structure and a washing machine, the clutch with the sealing and draining structure comprises a clutch body, a rotating surface transition piece is arranged on a clutch big plate of the clutch body, a slide rail ring device and a sealing ring are arranged on the rotating surface transition piece, the sealing ring is used for sleeving the slide rail ring device on the rotating surface transition piece, a rotating guide surface is arranged on the rotating surface transition piece, and helical guide ribs are arranged on the slide rail ring device; the slide rail ring device can generate axial power when rotating relative to the rotating surface transition piece, and the slide rail ring device rises or falls relative to the rotating surface transition piece. The clutch with the sealing and draining structure has the advantages of ingenious structure, good sealing and draining performance and flexible control characteristics, can effectively control the water flow under different working conditions such as washing, water feeding, water draining and dehydration, and improves the function and efficiency of the clutch.

Description

Technical Field

[0001] This invention relates to the field of water-saving washing machine technology with a non-perforated inner tub, and particularly to a clutch and washing machine with a sealing and drainage structure. Background Technology

[0002] To address the water conservation and secondary pollution issues of fully automatic top-loading or front-loading washing machines, the industry has developed water-saving washing machines, namely, perforated washing tub washing machines. For example, the structure of a top-loading washing machine features an integral design for the lower part of the inner tub, with only a ring of water-throwing holes near the balance ring on the tub wall, and no holes in other parts. In this structure, the inner tub is filled with water during the washing process, while there is no water between the inner and outer tubs, thus solving the problems of water conservation and secondary pollution.

[0003] However, the existing drain switch device for the inner tub has poor sealing performance and a short service life, and the dirty water in the inner tub must be drained before spin-drying. For example, the applicant's previous Chinese patent application, publication number CN219010734U, disclosed a rotary coupling type sealing and draining clutch and a washing machine. The clutch includes a pulsator shaft, a ratchet mechanism installed outside the clutch bushing of the pulsator shaft, and a rubber water-sealing plate installed on the ratchet mechanism. The ratchet mechanism drives the rubber water-sealing plate to rotate. The clutch bushing is connected to the bottom of the inner tub via a flange. A first drain hole is provided on the bottom, a second drain hole is provided on the flange, a third drain hole is provided on the rubber water-sealing plate, and a fourth drain hole is provided on the ratchet mechanism. During washing, spin-drying, and water inlet states, the first, second, third, and fourth drain holes are staggered; during draining states, the first, second, third, and fourth drain holes are correspondingly arranged. This patented device uses a ratchet mechanism to rotate a rubber sealing plate during drainage, thus connecting the drain hole on the washing tub with the drain hole on the rubber sealing plate. In other states, the drain hole on the washing tub and the drain hole on the rubber sealing plate are misaligned. This prevents water loss from the inner tub during washing, water intake, and water inlet, while ensuring proper sealing and drainage during drainage. However, this device has a relatively complex structure, making assembly difficult. Furthermore, the dehydration process relies solely on the water-throwing hole at the balance ring on the upper part of the washing tub, resulting in low efficiency and poor performance.

[0004] How to effectively drain the water from the inner tub while ensuring a seal during washing is a technical problem we currently need to solve. Summary of the Invention

[0005] In view of this, the present invention aims to propose a clutch and washing machine with a sealing and draining structure to solve the problems of the complex deceleration clutch structure of the existing non-perforated inner drum washing machine and the poor sealing effect during washing and the poor drainage efficiency during draining.

[0006] To achieve the above objectives, the technical solution of the present invention is implemented as follows:

[0007] A clutch with a sealing and draining structure includes a clutch body, a rotating surface transition piece on the clutch plate of the clutch body, a slide rail ring device and a sealing ring on the rotating surface transition piece, the sealing ring for fitting the slide rail ring device onto the rotating surface transition piece, a rotating guide surface on the rotating surface transition piece, and a helical guide rib on the slide rail ring device. The slide rail ring device generates axial power when rotating relative to the rotating surface transition piece. The slide rail ring device rises or falls relative to the rotating surface transition piece. During washing or water intake, the slide rail ring device rises and is in the upper position; during spin-drying or draining, the slide rail ring device falls and is in the lower position.

[0008] Furthermore, the rotating surface transition component includes a base plate, which is assembled and connected to the clutch large plate. An inner ring mounting wall is provided at the center of the base plate, which is sealed and cooperates with the clutch large water seal. An outer ring mounting wall is provided at the outer edge of the base plate, which is used to install a limiting seal ring. The rotating guide surface is provided between the inner ring mounting wall and the outer ring mounting wall.

[0009] Furthermore, the rotating guide surface is a guide spiral structure, and multiple rotating guide surfaces are evenly distributed on the base plate.

[0010] Furthermore, a pivot mounting hole is provided on the base plate, and the pivot can be movably installed in the pivot mounting hole and rotate relative to it. An eccentric pivot arm is provided on the pivot, and the other end of the eccentric pivot arm is connected to the waist-shaped hole on the slide rail ring device through a connecting column.

[0011] Furthermore, the slide rail ring device includes a slide rail ring sidewall, a sealing plate is provided at the top of the slide rail ring sidewall, a sidewall connecting plate is provided on the outside of the slide rail ring sidewall, a waist-shaped hole is provided on the sidewall connecting plate, and the spiral guide rib is provided below the sidewall connecting plate.

[0012] Furthermore, the slide rail ring device includes a slide rail ring sleeve and a slide rail ring seat. The slide rail ring sleeve is fitted onto the slide rail ring seat, the sealing plate is disposed on the slide rail ring sleeve, and the slide rail ring sidewall and the spiral guide rib are disposed on the slide rail ring seat.

[0013] Furthermore, the sealing ring includes a top sealing portion and an outer sealing portion, with a corrugated section provided between the top sealing portion and the outer sealing portion. The top sealing portion is tightly fitted onto the upper end of the slide rail ring device, and the outer sealing portion is fitted onto the outer ring mounting wall of the rotating surface transition piece. The corrugated section expands and contracts axially when the slide rail ring device is lifted or lowered.

[0014] Furthermore, a first drain outlet is provided on the base plate. The first drain outlet has a hollow columnar structure and extends directly out of the clutch body after passing through the clutch plate.

[0015] Furthermore, a cavity is formed between the slide rail ring device, the base plate of the rotating surface transition piece, the inner ring mounting wall, and the sealing ring. During water inlet or washing conditions, the slide rail ring device and the sealing ring are in the upper position, with the sealing ring flush with the end face of the upper sleeve of the clutch, and the upper end of the cavity is opened. During drainage or dehydration conditions, the slide rail ring device and the sealing ring are in the lower position, with the sealing ring lower than the upper end face of the upper sleeve of the clutch, and the upper end of the cavity is sealed.

[0016] Compared with the prior art, the clutch with sealing and draining structure described in this invention has the following advantages:

[0017] (1) The clutch with sealing and draining structure described in this invention uses a rotating surface transition piece with a guide structure and a slide rail ring device, so that when the slide rail ring device or the rotating surface transition piece rotates, it can drive the slide rail ring device to lift upward, thereby realizing the switching between water inlet and washing conditions and water drainage and dehydration conditions. The structure is compact and occupies less space, which helps to save the volume and weight of the equipment and improve the overall performance.

[0018] (2) The clutch with sealing and draining structure described in this invention has a clever structure, good sealing and draining performance and flexible control characteristics. It can effectively control the flow of water under different working conditions such as washing, water inlet, water outlet and dehydration, thereby improving the function and efficiency of the clutch.

[0019] Another object of the present invention is to provide a washing machine, including a clutch with a sealing and draining structure as described above, an outer tub and a non-perforated inner tub, an inner tub drain hole provided on the non-perforated inner tub, the bottom of the non-perforated inner tub being connected to the upper bushing of the clutch via a flange, a flange drain hole provided on the flange, the inner tub drain hole communicating with the flange drain hole, the clutch with the sealing and draining structure being installed at the bottom of the outer tub, the joint of the two being pressed against the sealing ring, when the slide rail device and the sealing ring are in the lower position, the flange drain hole is unobstructed, and the washing water inside the non-perforated inner tub can flow out through the flange drain hole, when the slide rail device and the sealing ring are in the upper position, the sealing ring blocks the outside of the flange drain hole, and the washing water inside the non-perforated inner tub flows into the cavity through the flange drain hole.

[0020] The washing machine described above has the same advantages over the prior art as the clutch with a sealing and draining structure, which will not be repeated here. Attached Figure Description

[0021] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0022] Figure 1 This is a schematic diagram of the clutch with a sealing and draining structure according to an embodiment of the present invention;

[0023] Figure 2 This is a schematic diagram of the barrel-type structure described in an embodiment of the present invention during drainage and dehydration.

[0024] Figure 3 This is a schematic diagram of the drum assembly structure described in an embodiment of the present invention during water inlet and washing operations;

[0025] Figure 4 This is a schematic diagram of the bottom structure of the outer barrel according to an embodiment of the present invention;

[0026] Figure 5 This is a schematic diagram of the structure of the rotating surface transition member according to an embodiment of the present invention;

[0027] Figure 6 This is a schematic diagram of the slide rail ring device according to an embodiment of the present invention;

[0028] Figure 7 This is a schematic diagram of the sealing ring described in an embodiment of the present invention;

[0029] Figure 8 This is a side view of the slide rail assembly device from a second perspective according to an embodiment of the present invention;

[0030] Explanation of reference numerals in the attached figures:

[0031] 1-Clutch body; 2-First drain outlet; 3-Shaft; 4-Bearing; 5-Water seal; 6-Rotating surface transition piece; 61-Shaft mounting hole; 62-Outer ring mounting wall; 63-Base plate; 64-Inner ring mounting wall; 65-Rotating guide surface; 7-Eccentric arm; 701-Connecting column; 8-Sealing ring; 81-Top surface sealing part; 82-Corrugated section; 83-Reinforcing steel ring; 84-Outer ring sealing part; 85-Limiting groove; 9-Slide rail ring device; 91-Axial guide rib; 92-Sealing plate; 93-Helical guide rib; 9 4-Waist-shaped hole; 95-Side drainage groove; 96-Slide rail ring sleeve; 97-Slide rail ring seat; 98-Slide rail ring side wall; 99-Side wall connecting plate; 10-Clutch upper bushing; 11-Clutch large plate; 12-Outer barrel; 13-Second drainage hole; 14-Flange drainage hole; 15-Flange; 16-Inner barrel without holes; 17-Drain valve; 18-First traction motor; 19-Second traction motor; 20-Water level detection air chamber; 21-First connecting pipe; 22-Second connecting pipe; 23-Inner barrel drainage hole; 24-Cavity. Detailed Implementation

[0032] To make the technical means and objectives and effects of the present invention easier to understand, the embodiments of the present invention will be described in detail below with reference to specific illustrations.

[0033] It should be noted that all directional and positional terms used in this invention, such as "up," "down," "left," "right," "front," "back," "vertical," "horizontal," "inner," "outer," "top," "lower," "lateral," "longitudinal," and "center," are only used to explain the relative positional relationships and connections between components in a specific state (as shown in the accompanying drawings). They are merely for the convenience of describing the invention and do not require the invention to be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on the invention. Furthermore, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated.

[0034] In the description of this invention, 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; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0035] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0036] like Figures 1-8As shown, this invention discloses a clutch with a sealing and draining structure, including a clutch body 1. A rotating surface transition piece 6 is provided on the clutch plate 11 of the clutch body 1. A slide rail ring device 9 and a sealing ring 8 are provided on the rotating surface transition piece 6. The sealing ring 8 is used to fit the slide rail ring device 9 onto the rotating surface transition piece 6. A rotating guide surface 65 is provided on the rotating surface transition piece 6. A spiral guide rib 93 is provided on the slide rail ring device 9. The slide rail ring device 9 can generate axial power when rotating relative to the rotating surface transition piece 6. The slide rail ring device 9 rises or falls relative to the rotating surface transition piece 6. During washing or water intake, the slide rail ring device 9 is in the upper position after rising. During dehydration or draining, the slide rail ring device 9 is in the lower position after falling.

[0037] The clutch with a sealing and draining structure of the present invention comprises a rotating surface transition piece 6 fixedly installed on the clutch plate 11 relative to the central shaft, a slide rail ring device 9 fitted on the transition piece 6, a sealing ring 8 tightly fitted on the slide rail ring device 9, and the slide rail ring device 9 assembled on the rotating surface transition piece 6. A rotating guide surface 65 is provided on the rotating surface transition piece 6, and a spiral guide rib 93 is provided on the slide rail ring device 9. When the slide rail ring device 9 rotates relative to the rotating surface transition piece 6, the spiral guide rib 93 rises or falls along the rotating guide surface 65. In the initial state of the clutch, the slide rail ring device 9 and the sealing ring 8 are in the lower position, below the upper end face of the clutch upper bushing 10. At this time, the sealing and draining structure is in the open state, and the water in the washing tub can flow outward, entering the draining or spin-drying state. When the slide rail ring device 9 is rotated, the inner end faces of the slide rail ring device 9 and the sealing ring 8 move up to be flush with the end face of the clutch upper bushing 10. At this time, the sealing and draining structure is in the closed state, entering the water inlet or washing state. The clutch with sealing and draining structure described in this invention uses a rotating surface transition piece 6 with a guide structure and a slide rail ring device 9. When the slide rail ring device 9 or the rotating surface transition piece 6 rotates, it can drive the slide rail ring device 9 to move upward, realizing the switching between water inlet and washing conditions and drainage and dehydration conditions. The structure is compact, occupies less space, helps to save the size and weight of the equipment, and improves the overall performance.

[0038] The clutch with sealing and drainage structure described in this invention has good sealing and drainage performance and flexible control characteristics. It can effectively control the flow of water under different working conditions such as washing, water inlet, drainage and dehydration, thereby improving the function and efficiency of the clutch.

[0039] As a preferred example of the present invention, the rotating surface transition member 6 includes a base plate 63, which is assembled and connected to the clutch large plate 11. An inner ring mounting wall 64 is provided at the center of the base plate 63, which is sealed and cooperates with the clutch large water seal. An outer ring mounting wall 62 is provided at the outer edge of the base plate 63, which is used to install the limiting sealing ring 8. The rotating guide surface 65 is disposed between the inner ring mounting wall 64 and the outer ring mounting wall 62. Preferably, the rotating guide surface 65 is a guide spiral structure, and multiple rotating guide surfaces 65 are evenly distributed on the base plate 63.

[0040] This design enhances the sealing performance of the sealing and drainage structure and optimizes the guiding performance of the slide rail ring device 9, which helps to improve the reliability and stability of the sealing and drainage structure and achieve accurate water flow control under different working conditions.

[0041] As a preferred example of the present invention, a rotating shaft mounting hole 61 is provided on the base plate 63. The rotating shaft 3 is movably mounted in the rotating shaft mounting hole 61 and rotates relative to it. An eccentric rotating arm 7 is provided on the rotating shaft 3. The other end of the eccentric rotating arm 7 is connected to the waist-shaped hole 94 on the slide rail ring device 9 through a connecting column 701. In use, the rotating shaft 3 passes through the rotating surface transition piece 6 and the clutch plate 11 to the outside of the clutch. With external power (second traction motor 19), the rotating shaft 3 is driven to rotate a certain angle, thereby causing the slide rail ring device 9 to rotate a certain angle, so that the slide rail ring device 9 moves up or down relative to the rotating surface transition piece 6, realizing the switching between water inlet / washing mode and drainage / spinning mode. Preferably, a bearing 4 and a water seal 5 are provided in the rotating shaft mounting hole 61 to ensure smooth movement of the rotating shaft 3, improve necessary support and guidance, reduce friction and wear of the rotating shaft 3, extend its service life, and prevent water from leaking out from the gap between the rotating shaft and the base plate, thereby improving the sealing performance of the sealing and drainage structure.

[0042] This design discloses a structure for the lifting and lowering of the slide rail ring device 9 relative to the rotating surface transition piece 6 during rotational motion. The structure is ingenious, the sealing and drainage switching is reliable, and the control is precise, ensuring the stable use of the clutch in the sealing and drainage structure of the present invention.

[0043] As a preferred example of the present invention, the slide rail ring device 9 includes a slide rail ring sidewall 98, a sealing plate 92 is provided at the top of the slide rail ring sidewall 98, a sidewall connecting plate 99 is provided on the outside of the slide rail ring sidewall 98, a waist-shaped hole 94 is provided on the sidewall connecting plate 99, and a spiral guide rib 93 is provided below the sidewall connecting plate 99. Preferably, an axial guide rib 91 is provided inside the slide rail ring sidewall 98, and a side drainage groove 95 is provided on the outer wall of the slide rail ring sidewall 98. The sidewall connecting plate 99 extends into the side drainage groove 95 through a connecting claw. Multiple axial guide ribs 91 and side drainage grooves 95 are provided on the slide rail ring sidewall 98. The axial guide ribs 91 avoid the contact area when the slide rail ring device 9 is assembled with the rotating surface transition piece 6, thereby reducing rotational resistance. Preferably, the side drainage groove 95 is a through groove.

[0044] This design discloses a structure for a slide rail device 9, ensuring the reliability of the slide rail device 9's rotational movement under the drive of the rotating shaft 3.

[0045] As a preferred example of the present invention, the slide rail ring device 9 includes a slide rail ring sleeve 96 and a slide rail ring seat 97. The slide rail ring sleeve 96 is fitted onto the slide rail ring seat 97, the sealing plate 92 is disposed on the slide rail ring sleeve 96, and the slide rail ring sidewall 98 and the spiral guide rib 93 are disposed on the slide rail ring seat 97. This arrangement divides the slide rail ring device 9 into two parts. The slide rail ring sleeve 96 can rotate flexibly circumferentially relative to the slide rail ring seat 97. The slide rail ring sleeve 96 is tightly fitted and fixed to the inner ring of the sealing ring 8 by the sealing plate 92. The slide rail ring seat 97 is still fitted onto the rotation guide surface 65 of the rotating surface transition piece 6 by the spiral guide rib 93, and the spiral guide surfaces of the two are used in conjunction. When the slide rail ring seat 97 rotates around the axis, it rises or falls along the inclined plane, thus driving the slide rail ring sleeve 96 to move up and down, but it does not rotate with the slide rail ring seat 97. This prevents the sealing ring from twisting and ensures the reliability of the sealing and drainage structure in a closed state under water inlet and washing conditions.

[0046] As a preferred embodiment of the present invention, the sealing ring 8 includes a top sealing portion 81 and an outer sealing portion 84. A corrugated section 82 is provided between the top sealing portion 81 and the outer sealing portion 84. The top sealing portion 81 is tightly fitted onto the upper end of the slide rail ring device 9, and the outer sealing portion 84 is fitted onto the outer ring mounting wall 62 of the rotating surface transition member 6. The corrugated section 82 expands and contracts axially when the slide rail ring device 9 is lifted or lowered. In use, when the slide rail ring device 9 moves up and down, it can drive the sealing ring 8, including the top sealing portion 81, to move up and down. Preferably, a limiting groove 85 is provided on the top sealing portion 81, and the sealing plate 92 at the upper end of the slide rail ring device 9 extends into the limiting groove 85 for limiting. A reinforcing steel ring 83 is provided on the outer sealing portion 84. This arrangement further ensures the reliability and stability of the sealing connection between the sealing ring 8 and the rotating surface transition member 6 and the slide rail ring device 9.

[0047] As a preferred example of the present invention, a first drain outlet 2 is provided on the base plate 63. The first drain outlet 2 has a hollow columnar structure and extends directly out of the clutch body 1 after passing through the clutch plate 11. This arrangement allows the cavity between the rotating surface transition member 6 and the sealing ring 8 to communicate with the outside.

[0048] As a preferred example of the present invention, a cavity 24 is formed between the slide rail ring device 9, the base plate 63 of the rotating surface transition piece 6, the inner ring mounting wall 64, and the sealing ring 8. In the water inlet or washing condition, the slide rail ring device 9 and the sealing ring 8 are in the upper position, and the sealing ring 8 is flush with the end face of the upper sleeve 10 of the clutch, and the upper end of the cavity 24 is opened. In the drainage or dehydration condition, the slide rail ring device 9 and the sealing ring 8 are in the lower position, and the sealing ring 8 is lower than the upper end face of the upper sleeve 10 of the clutch, and the upper end of the cavity 24 is blocked.

[0049] This design allows the deceleration clutch to switch the drainage channel inside the washing tub under different operating conditions, ensuring sealing performance during water intake and washing, while also ensuring rapid outflow of washing water during drainage and spin-drying, thus improving drainage and spin-drying efficiency.

[0050] As a preferred example of the present invention, the present invention also discloses a washing machine, including a clutch with a sealing and draining structure as described in the above embodiments, and an outer tub 12 and a non-perforated inner tub 16. An inner tub drain hole 23 is provided on the non-perforated inner tub 16. The bottom of the non-perforated inner tub 16 is connected to the upper bushing 10 of the clutch via a flange 15. A flange drain hole 14 is provided on the flange 15. The inner tub drain hole 23 communicates with the flange drain hole 14. The clutch with the sealing and draining structure is installed at the bottom of the outer tub 12. The sealing ring 8 is pressed against the joint between the two. When the slide rail device 9 and the sealing ring 8 are in the lower position, the flange drain hole 14 is unobstructed, and the washing water inside the non-perforated inner tub 16 can flow out through the flange drain hole 14. When the slide rail device 9 and the sealing ring 8 are in the upper position, the sealing ring 8 blocks the outside of the flange drain hole 14, and the washing water inside the non-perforated inner tub 16 flows into the cavity 24 through the flange drain hole 14.

[0051] As a preferred example of the present invention, when the slide rail ring device 9 and the sealing ring 8 are in the upper position, the sealing ring 8 blocks part of the area of ​​the flange drain hole 14, and the space within the diameter of the sealing ring 8 is connected to the inside of the non-porous inner cylinder 16 through the flange drain hole 14. The washing water inside the non-porous inner cylinder 16 flows into the cavity 24 through the flange drain hole 14.

[0052] As a preferred example of the present invention, a second drain hole 13 is provided on the outer tub 12, the second drain hole 13 being used to drain the washing water inside the outer tub 12.

[0053] As a preferred example of the present invention, the second drain hole 13 and the first drain outlet 2 are connected to the drain valve 17 through a connecting pipe. The washing water in the cavity 24 is connected to the water level detection air chamber 20 through the first drain outlet 2, the first connecting pipe 21, and the second connecting pipe 22. Under the action of the first traction motor 18, the drain valve 17 changes the communication state between the drain valve 17 and the second drain hole 13, the first connecting pipe 21, and the second connecting pipe 22. The drain valve 17 and the second drain hole 13 are normally open, and the drain valve 17 and the first connecting pipe 21 and the second connecting pipe 22 are normally closed. Preferably, a first traction motor 18 and a second traction motor 19 are provided inside the washing machine. The first traction motor 18 is used to change the connection state of the drain valve 17, and the second traction motor 19 is used to drive the rotating shaft 3 to rotate. When the first traction motor 18 is not in operation, the drain valve 17 is normally closed with the first connecting pipe 21 and the second connecting pipe 22. At this time, it is in the water inlet or washing condition. The second traction motor 19 drives the rotating shaft 3 to rotate, so that the slide rail ring device 9 and the sealing ring 8 are in the upper position. The washing water inside the non-perforated inner drum 16 flows into the cavity 24 through the flange drain hole 14, and then through the first connecting pipe 21 and the second connecting pipe 22. The second connecting pipe 22 is connected to the water level detection chamber 20, which can detect the water level inside the non-porous inner cylinder 16. When drainage or dehydration is required, the second traction motor 19 drives the rotating shaft 3 to rotate, so that the slide rail ring device 9 and the sealing ring 8 are in the lower position. At this time, the flange drain hole 14 is fully opened, and the washing water inside the non-porous inner cylinder 16 flows to the outer tub 12 and is discharged outward through the second drain hole 13. In the dehydration condition, the switching action of the first traction motor 18 can also change the connection switching state between the drain valve 17 and the first drain port 2, so that the water in the pipe connected to the water level detection chamber 20 is also completely discharged.

[0054] This design discloses a washing machine structure with a clutch featuring a sealing and draining mechanism. Through this improved clutch, when the sliding rail ring device 9 and the sealing ring 8 are in the upper position (rotating transition piece 6), the washing water inside the non-perforated inner drum 16 flows through the flange drain hole 14 to the cavity 24 under the sealing effect of the sealing ring 8. It then connects to the water level detection chamber 20 via the first drain outlet 2, facilitating water level detection during water intake and washing operations. This achieves the purpose of sealing the washing water during water intake and washing operations. When the sliding rail ring device 9 and the sealing ring 8 are in the lower position (rotating transition piece 6), the flange drain hole 14 is opened, allowing the washing water inside the non-perforated inner drum 16 to flow out. This water then flows out of the washing machine through the second drain hole 13 on the outer drum 12, achieving the purpose of outflowing washing water during drainage and spin-drying operations.

[0055] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A clutch with a sealing and draining structure, the clutch being used in a washing machine, the washing machine including a non-perforated inner drum (16), characterized in that, The clutch includes a clutch body (1), a rotating surface transition piece (6) is provided on the clutch plate (11) of the clutch body (1), a slide rail ring device (9) and a sealing ring (8) are provided on the rotating surface transition piece (6), the sealing ring (8) is used to fit the slide rail ring device (9) onto the rotating surface transition piece (6), a cavity (24) is formed between the slide rail ring device (9), the rotating surface transition piece (6) and the sealing ring (8), a rotating guide surface (65) is provided on the rotating surface transition piece (6), a spiral guide rib (93) is provided on the slide rail ring device (9), the slide rail ring device (9) can generate axial power when rotating relative to the rotating surface transition piece (6), the slide rail ring device (9) rises or falls relative to the rotating surface transition piece (6), an inner barrel drain hole (23) is provided on the non-perforated inner cylinder (16), and the bottom of the non-perforated inner cylinder (16) is connected to the upper bushing (10) of the clutch through a flange (15). The flange (15) is connected to the inner tub drain hole (23), and the inner tub drain hole (23) is connected to the flange drain hole (14). During washing or water intake, after the slide rail device (9) rises, the slide rail device (9) and the sealing ring (8) are in the upper position. The sealing ring (8) is flush with the end face of the upper bushing (10) of the clutch. The sealing ring (8) blocks the outside of the flange drain hole (14), and the upper end of the cavity (24) is opened. The non-perforated inner tub (15) is connected to the flange drain hole (14). 6) The internal washing water flows into the cavity (24) through the flange drain hole (14). The cavity (24) is connected to the water level detection chamber (20) of the washing machine, which can detect the water level inside the non-porous inner drum (16). During the spin-drying or draining operation, after the slide rail device (9) descends, the slide rail device (9) and the sealing ring (8) are in the lower position, the flange drain hole (14) is unobstructed, and the washing water inside the non-porous inner drum (16) can flow out through the flange drain hole (14).

2. The clutch with a sealing and draining structure according to claim 1, characterized in that, The rotating surface transition component (6) includes a base plate (63), which is assembled and connected to the clutch large plate (11). An inner ring mounting wall (64) is provided at the center of the base plate (63), which is sealed and cooperates with the clutch large water seal. An outer ring mounting wall (62) is provided at the outer edge of the base plate (63), which is used to install the limiting seal ring (8). The rotating guide surface (65) is provided between the inner ring mounting wall (64) and the outer ring mounting wall (62).

3. The clutch with a sealing and draining structure according to claim 2, characterized in that, The rotating guide surface (65) is a guide spiral structure, and multiple rotating guide surfaces (65) are evenly distributed on the base plate (63).

4. The clutch with a sealing and draining structure according to claim 2, characterized in that, A rotating shaft mounting hole (61) is provided on the base plate (63). The rotating shaft (3) is movably installed in the rotating shaft mounting hole (61) and rotates relative to it. An eccentric rotating arm (7) is provided on the rotating shaft (3). The other end of the eccentric rotating arm (7) is connected to the waist-shaped hole (94) on the slide rail ring device (9) through a connecting column (701).

5. The clutch with a sealing and draining structure according to any one of claims 2 to 4, characterized in that, The slide rail ring device (9) includes a slide rail ring sidewall (98), a sealing plate (92) is provided at the top of the slide rail ring sidewall (98), a sidewall connecting plate (99) is provided on the outside of the slide rail ring sidewall (98), a waist-shaped hole (94) is provided on the sidewall connecting plate (99), and the spiral guide rib (93) is provided below the sidewall connecting plate (99).

6. The clutch with a sealing and draining structure according to claim 5, characterized in that, The slide rail ring device (9) includes a slide rail ring sleeve (96) and a slide rail ring seat (97). The slide rail ring sleeve (96) is fitted onto the slide rail ring seat (97). The sealing plate (92) is disposed on the slide rail ring sleeve (96). The slide rail ring sidewall (98) and the spiral guide rib (93) are disposed on the slide rail ring seat (97).

7. The clutch with a sealing and draining structure according to claim 2 or 6, characterized in that, The sealing ring (8) includes a top sealing part (81) and an outer sealing part (84). A corrugated section (82) is provided between the top sealing part (81) and the outer sealing part (84). The top sealing part (81) is tightly fitted on the upper end of the slide rail ring device (9). The outer sealing part (84) is fitted on the outer ring mounting wall (62) of the rotating surface transition part (6). The corrugated section (82) expands and contracts axially when the slide rail ring device (9) is lifted or lowered.

8. The clutch with a sealing and draining structure according to claim 7, characterized in that, A first drain outlet (2) is provided on the base plate (63). The first drain outlet (2) is a hollow columnar structure. The first drain outlet (2) passes through the clutch plate (11) and extends directly out of the clutch body (1).

9. The clutch with a sealing and draining structure according to claim 8, characterized in that, A cavity (24) is formed between the slide rail ring device (9), the base plate (63) of the rotating surface transition piece (6), the inner ring mounting wall (64), and the sealing ring (8). In the water inlet or washing condition, the slide rail ring device (9) and the sealing ring (8) are in the upper position, and the sealing ring (8) is flush with the end face of the upper sleeve (10) of the clutch, and the upper end of the cavity (24) is opened. In the drainage or dehydration condition, the slide rail ring device (9) and the sealing ring (8) are in the lower position, and the sealing ring (8) is lower than the upper end face of the upper sleeve (10) of the clutch, and the upper end of the cavity (24) is blocked.

10. A washing machine, characterized in that, The clutch with a sealing and drainage structure as described in any one of claims 1 to 9 further includes an outer barrel (12) and a non-perforated inner barrel (16). An inner barrel drainage hole (23) is provided on the non-perforated inner barrel (16). The bottom of the non-perforated inner barrel (16) is connected to the upper bushing (10) of the clutch via a flange (15). A flange drainage hole (14) is provided on the flange (15). The inner barrel drainage hole (23) communicates with the flange drainage hole (14). The clutch with the sealing and drainage structure is installed... Installed at the bottom of the outer tub (12), the sealing ring (8) is pressed into the joint of the two. When the slide rail device (9) and the sealing ring (8) are in the lower position, the flange drain hole (14) is unobstructed, and the washing water inside the non-porous inner tub (16) can flow out through the flange drain hole (14). When the slide rail device (9) and the sealing ring (8) are in the upper position, the sealing ring (8) blocks the outside of the flange drain hole (14), and the washing water inside the non-porous inner tub (16) flows into the cavity (24) through the flange drain hole (14).

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