Washing equipment

Abstract

The washing equipment comprises an outer barrel, a middle barrel and an inner barrel, the middle barrel is rotatably arranged in the outer barrel, the inner barrel is separably installed in the middle barrel and can integrally rotate with the middle barrel, a dewatering hole is formed in the position, close to an upper opening, of a barrel body of the inner barrel, and the barrel body below the dewatering hole and the barrel bottom are both arranged in a sealed mode. A water guide groove is formed in the inner side of the barrel body and extends from bottom to top, and the distance between the water guide groove and the center shaft of the inner barrel is gradually increased. The distance between the water guide groove and the center shaft of the inner barrel is gradually increased from bottom to top, it is guaranteed that washing water in the inner barrel can be easily drained from the dewatering holes along the water guide groove when the inner barrel is drained, and the drainage efficiency is improved.

Description

Technical Field

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

[0002] Washing equipment has become a common household appliance due to its convenience. The barrel assembly of the washing equipment is arranged in the body, and the clothes are washed by rotating the barrel assembly.

[0003] The tub assembly of a washing machine typically includes an inner tub and an outer tub. A pulsator is located at the bottom of the inner tub. The rotation of the pulsator agitates the clothes and water in the inner tub during washing, achieving the desired effect. Currently, after washing, washing water can be discharged from the bottom of the inner tub or from the inner tub's body. However, this process is inefficient because the inner tub's body is axially arranged and its inner wall lacks a water-guiding structure.

[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 deficiencies of the prior art and to provide a washing device that can improve the efficiency of discharging washing water from the inner barrel body.

[0006] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0007] A washing device comprising

[0008] outer barrel;

[0009] The middle barrel is rotatably arranged in the outer barrel;

[0010] The inner barrel is detachably mounted in the middle barrel and can rotate integrally with the middle barrel;

[0011] The inner barrel body is provided with a dehydration hole near the upper opening, the barrel body and the barrel bottom below the dehydration hole are sealed, and a water guide groove is provided inside the barrel body, extending from bottom to top, and the distance from the central axis of the inner barrel gradually increases.

[0012] Preferably, at least one side wall of the water guide trough extends obliquely from bottom to top in a direction away from the other side wall.

[0013] Preferably, there are multiple water guide grooves, and the multiple water guide grooves are evenly distributed along the circumference of the barrel body, and the side walls of the same side of each water guide groove have the same inclination angle.

[0014] Preferably, the washing device further comprises an inner tub cover, the inner tub having a first open end, the inner tub cover being mounted on the first open end of the inner tub, and a first connecting structure being provided on the inner tub cover;

[0015] The middle barrel has a second open end, and the second open end has a second connecting structure that cooperates with the first connecting structure;

[0016] The inner barrel can be detachably installed in the middle barrel, and is connected to the first connecting structure and the second connecting structure so that the two can move as a whole in the rotation direction.

[0017] Preferably, the inner barrel cover is arranged axially higher than the second open end of the middle barrel;

[0018] The first connecting structure is arranged around the inner tub cover and is located outside the first open end of the inner tub.

[0019] Preferably, the first connecting structure is arranged on the lower surface of the inner barrel cover and extends toward the bottom of the inner barrel to form a first concave-convex structure. The second connecting structure is arranged on the middle barrel corresponding to the lower side of the first connecting structure and extends upward to form a second concave-convex structure, which is connected to the first connecting structure in a concave-convex manner.

[0020] Preferably, the inner tub cover comprises a cover body and an outer edge, the cover body is assembled on the first open end of the inner tub, and the outer edge is arranged around the cover body and extends outward to the outside of the first open end;

[0021] The first concave-convex structure is arranged on the lower surface of the outer edge.

[0022] Preferably, the second open end of the middle barrel has an outer flange, the outer flange extends radially outward from the second open end, and the outer flange is arranged opposite to the outer edge of the inner barrel cover;

[0023] The second concave-convex structure is arranged on the surface of the outer flange facing the outer edge.

[0024] Preferably, the washing device further comprises a balancing ring, which is mounted on the outer wall of the middle tub, close to the second open end of the middle tub;

[0025] The balance ring has a mounting surface opposite to the outer edge, and the second concave-convex structure is arranged on the mounting surface.

[0026] Preferably, the first concave-convex structure includes a plurality of first protrusions, the plurality of first protrusions are evenly distributed along the circumferential direction, and a plurality of first grooves are formed between adjacent first protrusions and the outer edge;

[0027] The second concave-convex structure includes a plurality of second protrusions, wherein adjacent second protrusions and first protrusions are evenly and alternately arranged, and a plurality of second grooves are formed between adjacent second protrusions;

[0028] A plurality of first protrusions are correspondingly arranged in the second grooves, a plurality of second protrusions are correspondingly arranged in the first grooves, and adjacent first protrusions and second protrusions are tightly fitted to each other.

[0029] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art.

[0030] A water guide groove is provided inside the barrel body, which extends from bottom to top, and the distance from the central axis of the inner barrel gradually increases. During the drainage process of the inner barrel, the water flow can be quickly discharged from the dehydration hole along the extension direction of the water guide groove, thereby improving the drainage efficiency of the inner barrel.

[0031] At least one side wall of the water guide trough extends obliquely from bottom to top in a direction away from the other side wall. The side walls on the same side of each water guide trough have the same inclination angle. The side walls of the water guide trough serve to guide the direction of water flow. The water in the inner barrel can flow along the side walls of the water guide trough and be quickly discharged from the dehydration holes of the water guide trough, thereby improving the drainage efficiency of the inner barrel.

[0032] The inner barrel cover is arranged at the first open end of the inner barrel, and a first connecting structure is arranged on the inner barrel cover. A second connecting structure cooperating with the first connecting structure is arranged at the second open end of the middle barrel. The inner barrel can be detachably installed in the middle barrel. The inner barrel forms an independent and closed space. The clothes are in an isolated state during the washing process, which can ensure that the clothes are clean and tidy, and improve the hygiene and safety of the washing process.

[0033] The first connecting structure is arranged on the lower surface of the inner barrel cover and extends toward the bottom of the inner barrel to form a first concave-convex structure. The second connecting structure is arranged on the middle barrel corresponding to the lower side of the first connecting structure and extends upward to form a second concave-convex structure. The inner barrel is placed into the middle barrel and the inner barrel cover is closed to realize the assembly connection between the first connecting structure and the second connecting structure. Assembly or disassembly is simple and convenient.

[0034] The first concave-convex structure includes a plurality of first protrusions, which are evenly distributed along the circumferential direction, and a plurality of first grooves are formed between adjacent first protrusions and the outer edge. The second concave-convex structure includes a plurality of second protrusions, which are evenly and alternately arranged with adjacent second protrusions, and a plurality of second grooves are formed between adjacent second protrusions. By arranging the first protrusions in the second grooves and the second protrusions in the first grooves, the adjacent first protrusions and the second protrusions are tightly fitted with each other, thereby further improving the tightness of the assembly between the inner barrel and the middle barrel.

[0035] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an undue limitation of the present invention. Obviously, the drawings described below are only some embodiments. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without inventive effort. In the accompanying drawings:

[0037] Figure 1 This is a schematic structural diagram of the barrel assembly of the present invention assembled in the outer barrel;

[0038] Figure 2 It is a schematic structural diagram of the barrel assembly of the present invention;

[0039] Figure 3 yes Figure 2 sectional view of

[0040] Figure 4 yes Figure 3 A magnified view of part of the structure.

[0041] In the figure: 1. Outer barrel; 21. Inner barrel; 211. Mounting shaft; 212. First connecting structure; 213. First groove; 214. Water guide groove; 2141. Side wall; 22. Middle barrel; 221. Outer flange; 222. Second connecting structure; 223. Second groove; 3. Inner barrel cover; 31. Outer edge; 30. Annular flange; 32. Insertion part; 33. Support platform; 34. Cover hinge; 35. Cover locking part; 351. First through hole; 36. Handle hinge; 37. Accommodating groove; 38. Handle; 381. Buckle fitting; 4. Balancing ring; 5. Driving mechanism.

[0042] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0043] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0044] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the present invention.

[0045] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; and direct or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0046] like Figures 1 to 4 As shown, the present invention provides a washing device, including an inner tub 21, a middle tub 22 and an outer tub 1, the middle tub 22 is rotatably arranged in the outer tub 1, the inner tub 21 is detachably installed in the middle tub 22, and can rotate integrally with the middle tub 22, the barrel body of the inner tub 21 is provided with a dehydration hole near the upper opening, the barrel body and the barrel bottom below the dehydration hole are both sealed, and a water guide groove 214 is provided on the inside of the barrel body, which extends from bottom to top, and the distance from the central axis of the inner tub 21 gradually increases.

[0047] A water guide groove 214 is provided on the inside of the barrel body, which extends from the bottom to the top and the distance from the central axis of the inner barrel 21 gradually increases. After the clothes are washed, the water can be discharged smoothly from the dehydration hole along the water guide groove 214 during the drainage process. Compared with the existing technology in which the washing water is discharged along the vertically set inner side of the barrel body, the drainage efficiency is improved.

[0048] When the washing device of the present invention is working, the clothes and washing water are located in the inner barrel 21, and the middle barrel 22 drives the inner barrel 21 to rotate. The middle barrel 22 provides support and power for the inner barrel 21, driving the inner barrel 21 to rotate to clean the clothes. The inner barrel 21 drives the washing water and clothes inside it to rotate. As the washing water rotates, collision and friction occur between the clothes and the inner barrel 21, thereby achieving the purpose of cleaning the clothes.

[0049] Preferably, at least one side wall 2141 of the water guide groove 214 extends obliquely from bottom to top in a direction away from the other side wall 2141 , that is, the water guide groove 214 approximately forms a "large at the top and small at the bottom" structure.

[0050] There are multiple water guide grooves 214, and the multiple water guide grooves 214 are evenly distributed along the circumference of the inner barrel 21. The side walls 2141 on the same side of each water guide groove 214 have the same inclination angle. That is to say, if the barrel body where the water guide groove 214 is located is unfolded to form a plane (the plane is generally rectangular), one of the shorter sides of the plane is defined as the width of the plane, and the side wall of the water guide groove 214 close to the side of the plane width is defined as the first side wall, and the other side wall of the same water guide groove 214 is defined as the second side wall. The first side walls of the multiple water guide grooves 214 have the same inclination angle from bottom to top. Under the action of a smaller centrifugal force, the washing water can be discharged along the side wall of the water guide groove 214 through the dehydration hole, thereby improving the drainage efficiency.

[0051] The bottom of the inner barrel 21 is provided with a impeller and a mounting shaft 211 for the impeller. The impeller is fixed on the top of the mounting shaft 211. The mounting shaft 211 passes through the bottom of the barrel and is provided with a water seal between the bottom of the barrel to ensure that the inner barrel 21 forms an independent closed space.

[0052] The washing device also includes an inner tub cover 3. Since the inner tub cover 3 is assembled at the first open end of the inner tub 21, a closed and independent space is formed inside the inner tub 21. The washing water will not flow out of the inner tub 21, and the washing water outside the inner tub 21 will not enter the inner tub 21. The clothes are located in the inner tub 21 and will not be contaminated by the dirty washing water outside the inner tub 21. This can ensure that the clothes are clean and tidy, and improve the hygiene and safety of the washing process.

[0053] The inner tub 21 is provided with a water level line. During each wash cycle, the water level can be below or close to the water level line. A dehydration hole is provided above the water level line. During the wash cycle, any water above the water level line is ejected from the dehydration hole due to centrifugal force. After washing, the inner tub 21 and the middle tub 22 rotate together at high speed to dry the clothes. The centrifugal force generated by the wash water in the inner tub 21 causes the water to move upward along the tub body. When the water level exceeds the water level line, it is ejected from the dehydration hole. Once the water level reaches a certain level, the clothes are effectively dried.

[0054] The peripheral wall and / or bottom wall of the middle tub 22 has water outlet holes. The washing water discharged through the dehydration holes of the inner tub 21 enters the middle tub 22 and is discharged from the water outlet holes of the barrel body of the middle tub 22.

[0055] The inner tub 21 mainly serves the purpose of replacement and isolation. During the washing process, the force applied to the inner tub 21 can be transferred to the middle tub 22, which provides support for the inner tub 21 and is the main load-bearing component. The inner tub 21 is relatively light and easy to carry. Each user can have their own inner tub 21 and carry their own inner tub 21 to wash clothes. When washing clothes, place your own inner tub 21 into the middle tub 22, cover the inner tub lid 3, and the middle tub 22 drives the inner tub 21 to rotate and wash clothes. During the washing process, the barrel body and the bottom of the inner tub 21 form an independent space. During the washing process, the clothes are in an isolated state, which can ensure the cleanliness of the clothes and also ensure the hygiene and safety of the washing process.

[0056] Preferably, the inner barrel 21 has a first open end, the inner barrel cover 3 is installed at the first open end of the inner barrel 21, and a first connecting structure 212 is provided on the inner barrel cover 3;

[0057] The middle barrel 22 has a second open end, and the second open end has a second connecting structure 222 that cooperates with the first connecting structure 212;

[0058] The inner barrel 21 can be detachably installed in the middle barrel 22, and is connected to the first connecting structure 212 and the second connecting structure 222 so that the two can move as a whole in the rotation direction.

[0059] Preferably, the inner barrel cover 3 is arranged axially higher than the second open end of the middle barrel 22;

[0060] The first connecting structure 212 is arranged around the inner tub cover 3 and is located outside the first open end of the inner tub 21 .

[0061] As an embodiment, the first connecting structure 212 is arranged along the radial direction of the inner barrel cover 3, that is, the first connecting structure 212 is installed around the inner barrel cover 3, and the second connecting structure 222 is installed at the second open end of the middle barrel 22. The first connecting structure 212 and the second connecting structure 222 are in the same plane in the radial direction. Through the matching connection of the first connecting structure 212 and the second connecting structure 222, the inner barrel 21 is installed on the middle barrel 22. However, since the first connecting structure 212 and the second connecting structure 222 are in the same plane, the gap between the inner barrel 21 and the middle barrel 22 becomes larger, thereby reducing the volume of the inner barrel 21.

[0062] As another embodiment, the first connecting structure 212 is provided on the lower surface of the inner tub cover 3 and extends toward the bottom of the inner tub 21, forming a first concave-convex structure. The second connecting structure 222 is provided on the middle tub 22 below the first connecting structure 212 and extends upward to form a second concave-convex structure, which is connected to the first connecting structure 212 in a concave-convex manner. In other words, the first concave-convex structure and the second concave-convex structure are assembled up and down, so that the first concave-convex structure and the second concave-convex structure are located in two different planes in the radial direction, which can reduce the gap between the inner tub 21 and the middle tub 22 while increasing the volume of the inner tub 21.

[0063] Preferably, the inner tub cover 3 includes a cover body and an outer edge 31, the cover body is assembled on the first open end of the inner tub 21, and the outer edge 31 is arranged around the cover body and extends outward to the outside of the first open end;

[0064] The first concave-convex structure is provided on the lower surface of the outer edge 31 .

[0065] Preferably, the second open end of the middle barrel 22 has an outer flange 221, which extends radially outward from the second open end, and is arranged opposite to the outer edge 31 of the inner barrel cover 3; the second concave-convex structure is arranged on the surface of the outer flange 221 facing the outer edge 31, and the assembly of the inner barrel 21 and the middle barrel 22 is achieved through the concave-convex cooperation of the first concave-convex structure and the second concave-convex structure.

[0066] Preferably, the washing device further comprises a balancing ring 4, which is mounted on the outer wall of the middle tub 22, close to the second open end of the middle tub 22;

[0067] As an alternative to providing the second concave-convex structure on the surface of the outer flange 221 facing the outer edge 31 , the balancing ring 4 has a mounting surface opposite to the outer edge 31 , and the second concave-convex structure is provided on the mounting surface.

[0068] In addition, in order to improve the aesthetics of the washing device, the washing device also includes an edge connected to the extended end of the outer flange 221, and the edge extends from the extended end of the outer flange 221 toward the bottom of the middle barrel 22.

[0069] Preferably, the first concave-convex structure includes a plurality of first protrusions, which are evenly distributed along the circumferential direction, and a plurality of first grooves 213 are formed between adjacent first protrusions and the outer edge 31 .

[0070] The second concave-convex structure includes a plurality of second protrusions. Adjacent second protrusions and first protrusions are evenly and alternately arranged, and a plurality of second grooves 223 are formed between adjacent second protrusions.

[0071] Multiple first protrusions are correspondingly arranged in the second groove 223, and multiple second protrusions are correspondingly arranged in the first groove 213. The adjacent first protrusions and second protrusions fit tightly with each other, which can generate friction, thereby improving the tightness of the installation of the inner barrel 21 and the middle barrel 22, and preventing the centrifugal force generated by the rotation of the inner barrel 21 and the middle barrel 22 from throwing the inner barrel 21 out of the middle barrel 22.

[0072] Preferably, the inner barrel cover 3 also includes an annular body 39, which is installed at the first open end of the inner barrel 21, and the outer edge 31 is arranged on the outer periphery of the body 39. The middle opening of the body 39 constitutes a clothing access opening, and the cover body can be installed on the body 39 in an openable and closable manner for opening and closing the clothing access opening.

[0073] An annular flange 30 is provided on the upper surface of the main body 39, and the inner side of the main body 39 extends downwardly to form a plug-in portion 32 installed at the first opening end of the inner barrel 21. The inner wall of the plug-in portion 32 extends inwardly to form a support platform 33 for supporting the cover body, and the two opposite sides of the support platform 33 respectively form a cover hinge portion 34 and a cover locking portion 35, and the other two opposite sides of the support platform 33 respectively form a handle hinge portion 36. The annular flange 30 extends outward to be connected to the plug-in portion 32.

[0074] Preferably, one side of the cover is pivotally mounted on the body 39 , and the opposite side is locked to the body 39 .

[0075] The cover hinge portion 34 can be a hinge, and the user manually opens the cover; the cover hinge portion 34 can also be a torsion spring, and a button is set on the cover. The user presses the button to automatically open the cover and put clothes into the clothing access port.

[0076] The cover locking portion 35 includes a first through hole 351 , and the cover has a second through hole corresponding to the first through hole 351 . The cover is fixed to the support platform 33 via a connecting member.

[0077] Preferably, a handle 38 is further provided on the main body 39, the shape of the handle 38 is adapted to the main body 39, and the handle 38 is rotatably mounted on the main body 39. A receiving groove 37 is provided on the main body 39 for accommodating the handle 38 flipped on the main body 39, so that the handle 38 and the main body 39 can remain relatively stationary.

[0078] Preferably, a snap-fitting portion 381 is further provided on the handle 38. When the inner barrel 21 needs to be replaced, the handle 38 is rotated to take the handle 38 out of the accommodating groove 37, and the snap-fitting portions 381 on the two handles 38 are snapped together. The user provides a force to pull the handle 38 to remove the inner barrel cover 3 and replace it. After the inner barrel 21 is assembled, the snap-fitting portions 381 on the two handles 38 are manually opened, and the handle 38 is rotated again to place the handle 38 in the accommodating groove 37.

[0079] The present invention further provides a washing device, further comprising a driving mechanism 5, which provides power for the inner tub 21 and the middle tub 22 to rotate integrally.

[0080] A drain outlet is provided at the bottom of the outer tub 1 , and the washing water discharged through the water outlet of the middle tub 22 is discharged to the outside of the washing device through the drain outlet of the outer tub 1 .

[0081] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as above in terms of a preferred embodiment, it is not intended to limit the present invention. Any technician familiar with this patent can make slight changes or modifications to equivalent embodiments of equivalent changes using the above-mentioned technical contents without departing from the scope of the technical solution of the present invention. The implementation schemes in the above-mentioned embodiments can also be further combined or replaced. However, any simple modifications, equivalent changes and modifications made to the above-mentioned embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the solution of the present invention.

Claims

1. A washing device, characterized in that: include Outer barrel (1); A middle barrel (22) is rotatably disposed in the outer barrel (1); The inner barrel (21) is detachably mounted in the middle barrel (22) and is capable of rotating integrally with the middle barrel (22); The inner barrel (21) is provided with a dehydration hole near the upper opening of the barrel body, and the barrel body and the barrel bottom below the dehydration hole are sealed. A water guide groove (214) is provided inside the barrel body, extending from bottom to top, and the distance from the central axis of the inner barrel (21) gradually increases.

2. The washing equipment according to claim 1, characterized in that At least one side wall (2141) of the water guide trough (214) extends obliquely from bottom to top in a direction away from the other side wall (2141).

3. The washing equipment according to claim 2, characterized in that There are multiple water guide grooves (214), and the multiple water guide grooves (214) are evenly distributed along the circumference of the barrel body. The side walls of the same side of each water guide groove (214) have the same inclination angle.

4. The washing equipment according to claim 3, characterized in that It also includes an inner barrel cover (3), the inner barrel having a first open end, the inner barrel cover (3) being mounted on the first open end of the inner barrel (21), and a first connecting structure (212) being provided on the inner barrel cover (3); The middle barrel (22) has a second open end, and the second open end has a second connecting structure (222) that cooperates with the first connecting structure (212); The inner barrel (21) is detachably mounted in the middle barrel (22) and is connected to the second barrel (222) through a first connecting structure (212) so that the two can move as one in the rotation direction.

5. The washing equipment according to claim 4, characterized in that The inner barrel cover (3) is arranged axially above the second opening end of the middle barrel (22); The first connection structure (212) is arranged around the inner barrel cover (3) and is located outside the first open end of the inner barrel (21).

6. The washing device according to claim 5, characterized in that The first connecting structure (212) is provided on the lower surface of the inner barrel cover (3), extending toward the bottom of the inner barrel (21) to form a first concave-convex structure; the second connecting structure (222) is provided on the middle barrel (22) below the corresponding first connecting structure (212), extending upward to form a second concave-convex structure, and connected to the first connecting structure (212) in a concave-convex manner.

7. The washing equipment according to claim 6, characterized in that The inner barrel cover (3) comprises a cover body and an outer edge (31), wherein the cover body is assembled on the first opening end of the inner barrel (21), and the outer edge (31) is arranged around the cover body and extends outward to the outside of the first opening end; The first concave-convex structure is arranged on the lower surface of the outer edge (31).

8. The washing equipment according to claim 7, characterized in that The second open end of the middle barrel (22) has an outer flange (221), the outer flange (221) extends radially outward from the second open end, and the outer flange (221) is arranged opposite to the outer edge (31) of the inner barrel cover (3); The second concave-convex structure is arranged on the surface of the outer flange (221) facing the outer edge (31).

9. The washing equipment according to claim 7, characterized in that It also includes a balancing ring (4) mounted on the outer wall of the middle barrel (22) and close to the second open end of the middle barrel (22); The balancing ring (4) has a mounting surface opposite to the outer edge (31), and the second concave-convex structure is arranged on the mounting surface.

10. The washing equipment according to claim 7 or 8, characterized in that: The first concave-convex structure comprises a plurality of first protrusions, the plurality of first protrusions being evenly distributed along the circumferential direction, and a plurality of first grooves (213) being formed between adjacent first protrusions and the outer edge (31); The second concave-convex structure comprises a plurality of second protrusions, wherein adjacent second protrusions and first protrusions are evenly and alternately arranged, and a plurality of second grooves (223) are formed between adjacent second protrusions; The plurality of first protrusions are correspondingly arranged in the second groove (223), and the plurality of second protrusions are correspondingly arranged in the first groove (213), and the adjacent first protrusions and second protrusions are tightly fitted to each other.

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