Wheel disc assembly, moisture absorbing and discharging module and clothes processing device

Abstract

The utility model belongs to the technical field of electrical equipment, particularly relates to a wheel disc assembly, a moisture absorbing and discharging module and a clothes processing device, and aims to solve the technical problem that normal work of the wheel disc assembly is affected due to the fact that a wheel disc is easily clamped by separation ribs to at least a certain extent. The wheel disc assembly comprises a supporting shell, a center piece, a supporting rib and a wheel disc, the supporting shell is provided with an outer ring, the center piece is arranged at the center of the supporting shell, the supporting rib is connected between the outer circumferential face of the center piece and the inner circumferential face of the outer ring, and an included angle is formed between the supporting rib and the radial direction of the outer ring; the wheel disc is arranged between the outer ring and the center piece and installed on the supporting ribs. In the rotating process of the wheel disc assembly, the contact area of the supporting ribs and the separation ribs can be reduced, correspondingly, the phenomenon that the wheel disc assembly is clamped by the separation ribs is also reduced, normal work of the wheel disc assembly is prevented from being affected, and good practicability is achieved.

Description

Technical Field

[0001] The present application belongs to the technical field of electrical equipment, and specifically relates to a wheel assembly, a moisture absorption and dehumidification module, and a clothing processing device. Background Art

[0002] In the related art, when the wheel assembly used in the clothes processing device rotates in the housing, the wheel is easily stuck by the partition ribs, affecting the normal operation of the wheel assembly. Summary of the Invention

[0003] The present application provides a wheel assembly, a moisture absorption and dehumidification module, and a clothing processing device, which aim to at least to some extent solve the technical problem that the wheel is easily stuck by the partition ribs, affecting the normal operation of the wheel assembly.

[0004] In a first aspect of the present application, a wheel assembly is provided, which includes: a support shell provided with an outer ring; a center piece provided at the center of the support shell; support ribs connected between the outer circumference of the center piece and the inner circumference of the outer ring, and an angle is formed between the support ribs and the radial direction of the outer ring; a wheel is provided between the outer ring and the center piece, and is installed on the support ribs.

[0005] The wheel assembly provided in the present application has an angle between the support ribs for supporting the wheel and the radial direction of the outer ring of the supporting shell. Therefore, during the rotation of the wheel assembly, the contact area between the support ribs and the partition ribs can be reduced. Correspondingly, the phenomenon of the wheel assembly being stuck by the partition ribs is also reduced, so as to avoid affecting the normal operation of the wheel assembly, and has good practicality.

[0006] In some embodiments, the support ribs are tangent to the outer periphery of the center piece.

[0007] In some embodiments, the angle between adjacent support ribs is greater than or equal to 90°.

[0008] In some embodiments, the wheel assembly further includes: a reinforcement ring disposed between the center piece and the outer ring, and the support ribs are connected to the reinforcement ring.

[0009] In some embodiments, a positioning portion is provided at the bottom of the outer circumference of the center piece, and a plurality of the support ribs are connected between the positioning portion and the outer ring.

[0010] A positioning portion is provided at the bottom of the outer peripheral surface of the center piece, and a plurality of support ribs are connected between the positioning portion and the side wall of the accommodating cavity.

[0011] In some embodiments, the center piece includes a first clamp and a second clamp, the positioning portion is connected to the outer peripheral surface of the bottom of the first clamp, the second clamp is sleeved on the first clamp, the wheel is sleeved on the second clamp, and the top of the second clamp is provided with a limiting portion extending toward the outer peripheral surface of the second clamp, and the limiting portion is pressed on the wheel to fix the wheel.

[0012] In some embodiments, a plurality of first connecting holes are spaced apart on the positioning portion, a plurality of connecting columns are spaced apart on the inner wall of the second clamp, and a plurality of second connecting holes are provided at the end of the connecting column toward the positioning portion, so that the second clamp can be installed on the positioning portion through a connecting piece.

[0013] In some embodiments, a first guide member is provided on the outer peripheral surface of the first clamp, and the first guide member is provided along an axis parallel to the first clamp; a second guide member is provided on the second clamp, and the second guide member and the first guide member are plugged into each other.

[0014] In some embodiments, the first guide member is a guide protrusion provided on the outer peripheral surface of the first clamp, and the second guide member is a guide groove provided on the inner wall of the second clamp.

[0015] In some embodiments, one first guide member is provided, and a plurality of second guide members are provided at circumferential intervals around the second clamp, the central angles of adjacent second guide members are consistent with the central angles between adjacent connecting columns, and the first guide member can be matched and connected with any one of the second guide members.

[0016] In some embodiments, a clamping portion is provided on the outer circumferential surface of the first clamp, and a clamping piece is provided on the inner wall of the second clamp, and the clamping piece is connected to the clamping portion.

[0017] In some embodiments, each of the connecting columns is provided with more than one clamping member.

[0018] In some embodiments, a limiting portion extending toward a side wall of the accommodating cavity is provided on the top of the second clamp, and the wheel is provided between the limiting portion and the positioning portion.

[0019] In some embodiments, an elastic layer is provided between the side wall of the accommodating cavity and the circumferential surface of the wheel disc.

[0020] In a second aspect of the present application, the present application provides a moisture absorption and dehumidification module, which includes the above-mentioned wheel assembly and a shell, and the wheel assembly is rotatably arranged in the shell.

[0021] The moisture absorption and dehumidification module provided in the present application can reduce the phenomenon of the wheel assembly being stuck by the partition ribs to avoid affecting the normal operation of the wheel assembly, and also ensures the normal operation of the moisture absorption and dehumidification module to a certain extent, and has good practicality.

[0022] In a third aspect of the present application, the present application provides a clothing processing device, which includes the above-mentioned moisture absorption and dehumidification module.

[0023] The clothing processing device provided in the present application can reduce the phenomenon of the wheel assembly being stuck by the partition ribs to avoid affecting the normal operation of the wheel assembly, and also ensures the normal operation of the clothing processing device with a moisture absorption and dehumidification module to a certain extent, and has good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 Shows a schematic structural diagram of a wheel disc assembly in some embodiments;

[0026] Figure 2 Shown Figure 1 A structural diagram from another perspective;

[0027] Figure 3 Shown Figure 1 Explosion diagram of

[0028] Figure 4 Shown Figure 1 A schematic structural diagram of the supporting shell in FIG.

[0029] Figure 5 Shown Figure 4 Schematic top view of

[0030] Figure 6 Shown Figure 1 The schematic structural diagram of the wheel disc assembly shown is shown with the wheel disc removed;

[0031] Figure 7 Shown Figure 6 A local enlarged schematic diagram of point A;

[0032] Figure 8 Shown Figure 6 A schematic structural diagram of the second clamp in FIG;

[0033] Figure 9 Shown Figure 4Enlarged schematic diagram of point B.

[0034] Description of reference numerals:

[0035] Support housing 1, outer ring 11, positioning part 12, teeth 13, support ring 14;

[0036] Roulette-2;

[0037] Support ribs-3;

[0038] Reinforcement ring-4;

[0039] Center piece-5, first clamp-51, first connecting hole-511, connecting block-512, first guide piece-513, snap-on part-514, receiving part-515; second clamp-52, connecting column-521, second connecting hole-522, second guide piece-523, snap-on part-524, limiting part-525. DETAILED DESCRIPTION

[0040] In order to enable those skilled in the art to understand the present application more clearly, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of this application.

[0041] In a washing and drying machine, a heating module and a moisture absorption and dehumidification module are provided. The moisture absorption and dehumidification module can absorb the water vapor in the drum to complete the washing of clothes. The heating module provides heat energy to the moisture absorption and dehumidification module, which can desorb the water vapor adsorbed by the moisture absorption and dehumidification component. This cycle can dry the clothes in the clothing processing device.

[0042] The moisture absorption and dehumidification module includes a wheel assembly and a shell for accommodating the wheel assembly. The wheel assembly is rotatably arranged in the shell. Two or more pairs of partition ribs are provided on the inner walls of the upper and lower end surfaces of the shell to separate the internal space of the shell into a moisture absorption area and a moisture discharge area. During the rotation of the wheel assembly in the shell, the water vapor absorbed by the moisture absorption area is absorbed by the wheel assembly, so that the wheel assembly outputs a dry airflow, and the dry airflow is transported to the drum through the moisture discharge area. For details, please refer to the technical solution disclosed in the patent document with application number "202222327022.1" and application name "washer-dryer".

[0043] In the related art, the partition ribs are arranged along the radial direction of the wheel of the wheel assembly, which results in the wheel easily getting stuck due to the large contact area between the wheel and the partition ribs during the rotation of the wheel assembly in the shell, affecting the normal operation of the wheel assembly.

[0044] Based on the above technical problems, the present application provides a wheel assembly, a moisture absorption and dehumidification module and a clothing processing device, aiming to at least to some extent solve the technical problem that the wheel is easily stuck by the partition ribs, affecting the normal operation of the wheel assembly.

[0045] In a first aspect of the present application, the present application provides a wheel assembly. Figure 1 shows a schematic structural diagram of a wheel disc assembly in some embodiments, Figure 2 Shown Figure 1 A structural diagram from another perspective, Figure 3 Shown Figure 1 Explosion diagram of . Figure 1-Figure 3 The wheel assembly includes a supporting shell 1 and a wheel 2. The supporting shell 1 is provided with an outer ring 11. A center piece 5 is provided at the center of the supporting shell 1. The outer circumference of the center piece 5 and the inner circumference of the outer ring 11 are connected by support ribs 3. The support ribs 3 and the radial direction of the outer ring 11 have an angle. The wheel 2 is provided between the outer ring 11 and the center piece 5 and is installed on the support ribs 3.

[0046] The wheel assembly provided in the present application has an angle between the support ribs 3 for supporting the wheel 2 and the radial direction of the outer ring 11. Therefore, during the rotation of the wheel assembly, the contact area between the support ribs 3 and the partition ribs can be reduced. Correspondingly, the phenomenon of the wheel assembly being stuck by the partition ribs is also reduced, so as to avoid affecting the normal operation of the wheel assembly, and has good practicality.

[0047] Figure 4 Shown Figure 1 Schematic diagram of the structure of the supporting shell, Figure 5 Shown Figure 4 Schematic diagram of the top view. Figure 4 as well as Figure 5 In some embodiments, a plurality of support members 3 may be provided, one end of the plurality of support ribs 3 may be connected to the center member 5, and the other ends of the plurality of support ribs 3 may extend radially and be connected to the inner circumference of the outer ring 11 to evenly support the wheel disc 2.

[0048] Combine Figure 4 as well as Figure 5 In some embodiments, the outer circumference of the support rib 3 and the center piece 5 may be tangent. In other embodiments, the outer circumference of the support rib 3 and the center piece 5 may not be tangent, which is not limited here.

[0049] Combine Figure 4 as well as Figure 5In some embodiments, the angle between adjacent support ribs 3 can be 90°, that is, adjacent support ribs 3 are perpendicular to each other, so as to provide the most balanced support for the wheel disc 2. In other embodiments, adjacent support ribs 3 may not be perpendicular to each other, for example, the angle between adjacent support ribs 3 may be greater than 90°, which is not limited here.

[0050] In some embodiments, the number of the support ribs 3 is set to four, so as to provide as comprehensive and balanced support as possible for the wheel disc 2. In other embodiments, the number of the support ribs 3 can also be set to three, five or more, which is not limited here.

[0051] Combine Figure 4 as well as Figure 5 In some embodiments, the support shell 1 can be cylindrical, and at least a portion of its outer circumference is provided with teeth 13 to engage with the driving wheel provided on the outside of the support wheel disc 2. The center piece 5 of the support shell 1 is rotatably connected to the rotating shaft (not shown). When the driving wheel rotates, the support shell 1 is driven to rotate around the rotating shaft.

[0052] Combine Figure 4 as well as Figure 5 In some embodiments, the teeth 13 may be provided on the upper portion of the outer circumference of the support shell 1, and the lower portion of the outer ring of the support shell 1 may be a smooth curved surface. A support ring 14 may be provided at the bottom of the outer ring of the support shell 1 to support the edge of the wheel disc 2, and the plurality of support ribs 3 may be connected to the support ring 14. In other embodiments, the teeth 13 may be provided on the middle portion of the outer circumference of the support shell 1, and the remaining portion of the outer circumference of the support shell 1 may be a smooth curved surface, which is not a limitation herein.

[0053] Combine Figure 4 as well as Figure 5 In some embodiments, the wheel assembly may further include a reinforcement ring 4, which is disposed between the positioning portion 12 and the sidewall of the outer ring 11, and the support ribs 3 are connected to the reinforcement ring 4. The reinforcement ring 4 can be disposed concentrically with the outer ring 11. The reinforcement ring 4 can not only strengthen the structure of the support ribs 3, but also provide support for the wheel disc 2, thereby improving the supporting effect of the wheel disc 2.

[0054] Combine Figure 4 as well as Figure 5 In some embodiments, two or more reinforcement rings 4 may be provided, and two or more reinforcement rings 4 may be provided between the positioning portion 12 and the sidewall of the outer ring 11 at intervals along the radial direction of the outer ring 11. In other embodiments, only one, three, or four reinforcement rings 4 may be provided, and this is not limited here.

[0055] Combine Figure 4 as well as Figure 5In some embodiments, a positioning portion 12 may be provided at the bottom of the outer circumference of the center piece 5. The positioning portion 12 may be annular, and a plurality of support ribs 3 are connected between the positioning portion 12 and the inner circumference side wall of the outer ring 11 (i.e., the support ring 14).

[0056] It should be noted that the positioning portion 12, the support ring 14, the reinforcement ring 4 and the support rib 3 constitute a support structure for the wheel disc 2. The plane where the top of the support structure is located is at the same height so that the wheel disc 2 can be stably located on the support structure. Similarly, the plane where the bottom of the support structure is located is also at the same height.

[0057] Combine Figure 3 In some embodiments, the center piece includes a first clamp 51 and a second clamp 52. The positioning portion 12 can be connected to the outer peripheral surface of the bottom of the first clamp 5. The second clamp 52 is mounted on the first clamp 51. The wheel 2 is mounted on the second clamp 52. The top of the second clamp 52 is provided with a limiting portion 525 extending toward the outer peripheral surface of the second clamp 52. The limiting portion 525 is pressed on the wheel 2 to fix the wheel 2 so that the wheel 2 and the supporting shell 1 are relatively fixed. When the driving wheel rotates to drive the supporting shell 1 to rotate around the rotating shaft, the wheel 2 also rotates around the rotating shaft with the supporting shell 1 to achieve the moisture absorption and dehumidification function.

[0058] Figure 6 Shown in Figure Figure 1 The schematic diagram of the structure of the wheel assembly without the wheel disc is shown. Figure 7 Shown Figure 6 A local enlarged schematic diagram, Figure 8 Shown Figure 6 Schematic diagram of the structure of the second fixture, Figure 9 Shown Figure 4 The enlarged schematic diagram of point B, combined with Figure 6-Figure 9 In some embodiments, the center piece 5 includes a first clamp 511 and a second clamp 522, the first clamp 511 is used to be rotatably mounted on the rotating shaft, the positioning portion 12 is connected to the outer peripheral surface of the first clamp 511, and the second clamp 52 is seated on the positioning portion 12, and the second clamp 52 can be mounted on the first clamp 511.

[0059] Combine Figure 6-Figure 9 In some embodiments, a plurality of first connection holes 511 may be arranged at intervals on the positioning portion 12, a plurality of connection columns 521 may be arranged at intervals on the inner wall of the second clamp 52, and a plurality of second connection holes 522 may be provided at the end of the connection column 521 toward the positioning portion 12, so that the second clamp 52 can be installed on the positioning portion 12 through a connecting piece.

[0060] Combine Figure 6-Figure 9In a specific implementation, the positioning portion 12 can be annular, and a receiving portion 515 can be provided at the top of the positioning portion 12. The receiving portions 515 are arranged at intervals on the outer circumference of the first clamp 511, and a plurality of connecting blocks 512 are arranged at intervals between the receiving portion 515 and the outer circumference of the first clamp 511. The plurality of connecting blocks 512 are arranged at intervals around the first clamp 511, and each connecting block 512 is provided with the above-mentioned first connecting hole 511; the second clamp 52 can also be a sleeve structure, and the plurality of connecting columns 521 can also be integrally formed on the inner wall of the second clamp 52. The plurality of connecting columns 521 can be roughly the same height as the second clamp 52. When the second clamp 52 is located on the positioning portion 12, the first connecting hole 511 on the connecting block 512 and the second connecting hole 522 on the corresponding connecting column 521 are aligned, and the connecting block 512 and the connecting column 521 are fixedly connected by connecting members such as screws.

[0061] Combine Figure 6-Figure 9 In some embodiments, a first guide member 513 is provided on the outer circumferential surface of the first clamp 511, and the first guide member 513 is arranged along an axis parallel to the first clamp 511. A second guide member 523 is provided on the second clamp 52, and the second guide member 523 and the first guide member 513 are plugged into each other. During the process of fitting the second clamp 52 onto the first clamp 511, the plugging and guiding of the second guide member 523 and the first guide member 513 automatically align the first connection hole 511 on the connecting block 512 with the corresponding second connection hole 522 on the connecting column 521, and the circumferential displacement between the second clamp 52 and the first clamp 511 can be limited, thereby improving assembly efficiency.

[0062] Combine Figure 7 In some embodiments, the first guide member 513 may be a guide protrusion provided on the outer peripheral surface of the first fixture 511. Figure 8 The second guide member 523 can be a guide groove provided on the inner wall of the second clamp 52. The guide protrusion can slide in the guide groove to provide guidance for the assembly between the second clamp 52 and the first clamp 511.

[0063] Combine Figure 6-Figure 9In some embodiments, a single first guide member 513 may be provided, and a plurality of second guide members 523 may be provided at intervals around the circumference of the second fixture 52. The central angles of adjacent second guide members 523 coincide with the central angles between adjacent connecting posts 521, and the first guide member 513 may be mated and connected with any second guide member 523. Because the central angles of adjacent second guide members 523 coincide with the central angles between adjacent connecting posts 521, during operation, any second guide member 523 may be selected to mate with the first guide member 513, and the first connecting hole 511 on the connecting block 512 and the corresponding second connecting hole 522 on the connecting post 521 may be automatically aligned, thereby improving operational efficiency.

[0064] Combine Figure 6-Figure 9 In some embodiments, a clamping portion 514 may be provided on the outer circumferential surface of the first clamp 511, and a clamping piece 524 may be provided on the inner wall of the second clamp 52. The clamping piece 524 and the clamping portion 514 are provided correspondingly, and the clamping piece 524 is connected to the corresponding clamping portion 514. When the second clamp 52 is mounted on the first clamp 511, the clamping piece 524 on the second clamp 52 is connected to the corresponding clamping portion 514, thereby achieving a fixed connection between the second clamp 52 and the first clamp 511.

[0065] Combine Figure 8 In combination with the specific implementation, the clamping member 524 can be provided on the connecting column 521, and each connecting column 521 can be provided with more than one clamping member 524. Figure 7 The clamping portion 514 provided on the outer peripheral surface of the first clamp 511 can be a clamping groove or a clamping hole, which is not limited here.

[0066] Combine Figure 8 In some embodiments, a stopper 52555 is provided at the top of the second fixture 52, extending toward the sidewall of the outer ring 11. The wheel disc 2 is disposed between the stopper 525 and the positioning portion 12, and is clamped by the stopper 525 and the aforementioned support structure to further limit the displacement of the wheel disc 2. The stopper 525 can be annular and can be integrally formed at the top of the second fixture 52.

[0067] In some embodiments, an elastic layer may be provided between the side wall of the outer ring 11 and the circumferential surface of the wheel disc 2, so that there is a certain extrusion pressure between the circumferential surface of the wheel disc 2 and the side wall of the outer ring 11. In this way, the wheel disc 2 can be assembled in the elastic layer with an interference fit, thereby improving the reliability of the assembly between the wheel disc 2 and the support shell 1.

[0068] In a specific implementation, the elastic layer can be foam, which can be bonded to the side wall of the outer ring 11; or, a groove is opened on the side wall of the outer ring 11, and the elastic layer is embedded in the groove of the side wall of the outer ring 11, which is not limited here.

[0069] In the second aspect of the present application, the present application further provides a moisture absorption and dehumidification module, which includes the above-mentioned wheel assembly and a shell, and the wheel assembly is rotatably arranged in the shell.

[0070] The moisture absorption and dehumidification module provided in the present application can reduce the phenomenon of the wheel assembly being stuck by the partition ribs to avoid affecting the normal operation of the wheel assembly, and also ensures the normal operation of the moisture absorption and dehumidification module to a certain extent, and has good practicality.

[0071] In a third aspect of the present application, the present application further provides a clothing processing device, which includes the above-mentioned moisture absorption and dehumidification module.

[0072] The clothing processing device provided in the present application can reduce the phenomenon of the wheel assembly being stuck by the partition ribs to avoid affecting the normal operation of the wheel assembly, and also ensures the normal operation of the clothing processing device with a moisture absorption and dehumidification module to a certain extent, and has good practicality.

[0073] The clothing processing device may be a washer-dryer, or, of course, may be any electrical appliance requiring dehumidification, such as a clothes dryer, a dehumidifier, a dishwasher, etc., without limitation herein.

[0074] In this application, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0075] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise" and "counterclockwise" indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0076] In this application, unless otherwise specified or limited, the terms "connect," "fix," etc. should be understood broadly. For example, "fix" can mean fixed connection, detachable connection, or integration; it can mean mechanical connection or electrical connection; it can mean direct connection or indirect connection through an intermediate medium; it can mean internal communication between two elements or interaction between two elements. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0077] In addition, the terms "first," "second," and so on, used in this application are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, features specified as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0078] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and intent of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A wheel assembly, characterized in that: The wheel disc assembly comprises: A supporting shell is provided with an outer ring; a center piece, disposed at the center of the support shell; a support rib connected between the outer circumference of the center piece and the inner circumference of the outer ring, wherein an angle is formed between the support rib and the radial direction of the outer ring; The wheel disc is arranged between the outer ring and the center piece and is installed on the supporting ribs.

2. The wheel assembly according to claim 1, wherein: The supporting ribs are tangent to the outer peripheral surface of the center piece.

3. The wheel assembly according to claim 1, wherein: The angle between adjacent support ribs is greater than or equal to 90°.

4. The wheel assembly according to any one of claims 1 to 3, characterized in that: The wheel disc assembly further comprises: A reinforcement ring is provided between the center piece and the outer ring, and the support ribs are connected to the reinforcement ring.

5. The wheel assembly according to any one of claims 1 to 3, characterized in that: A positioning portion is provided at the bottom of the outer peripheral surface of the center piece, and a plurality of support ribs are connected between the positioning portion and the outer ring.

6. The wheel assembly according to claim 5, characterized in that The center piece includes a first clamp and a second clamp, the positioning portion is connected to the outer peripheral surface of the bottom of the first clamp, the second clamp is sleeved on the first clamp, the wheel disc is sleeved on the second clamp, and a limiting portion extending toward the outer peripheral surface of the second clamp is provided on the top of the second clamp, and the limiting portion is pressed on the wheel disc to fix the wheel disc.

7. The wheel assembly according to claim 6, wherein: A plurality of first connection holes are arranged at intervals on the positioning portion, a plurality of connection columns are arranged at intervals on the inner wall of the second clamp, and a plurality of second connection holes are arranged at the end of the connection column facing the positioning portion, so that the second clamp can be installed on the positioning portion through a connecting piece.

8. The wheel assembly according to claim 7, wherein: A first guide member is provided on the outer peripheral surface of the first clamp, and the first guide member is arranged along an axis parallel to the first clamp; The second fixture is provided with a second guide member, and the second guide member and the first guide member are plug-connected to each other.

9. The wheel assembly according to claim 8, wherein: The first guide member is a guide protrusion provided on the outer peripheral surface of the first clamp, and the second guide member is a guide groove provided on the inner wall of the second clamp.

10. The wheel assembly according to claim 9, wherein: There is one first guide member, and multiple second guide members are arranged at circumferential intervals around the second clamp. The central angles of adjacent second guide members are consistent with the central angles between adjacent connecting columns. The first guide member can be matched and connected with any one of the second guide members.

11. The wheel assembly according to any one of claims 7 to 10, characterized in that: A clamping portion is provided on the outer peripheral surface of the first clamp, and a clamping piece is provided on the inner wall of the second clamp. The clamping piece is connected to the clamping portion.

12. The wheel assembly according to claim 11, wherein: Each of the connecting columns is provided with at least one clamping member.

13. The wheel assembly according to claim 6, wherein: A limiting portion extending toward the side wall of the accommodating cavity is provided on the top of the second clamp, and the wheel is provided between the limiting portion and the positioning portion.

14. The wheel assembly according to any one of claims 1-4, 6-10 and 12-13, characterized in that: An elastic layer is provided between the side wall of the accommodating cavity and the peripheral surface of the wheel disc.

15. A moisture absorption and dehumidification module, characterized in that: The moisture absorption and dehumidification module comprises the wheel assembly according to any one of claims 1 to 14 and a shell, and the wheel assembly is rotatably disposed in the shell.

16. A clothes processing device, characterized in that: The clothes treating device comprises the moisture absorption and dehumidification module according to claim 15.

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