Laundry treating apparatus

By employing a drum structure design with snap-fit ​​components and seals in the garment processing equipment, the problem of complex sealing structures in existing washing machines is solved, achieving a simple, convenient sealing connection and efficient sealing effect.

CN224001663UActive Publication Date: 2026-03-17DREAM INNOVATION TECH (SUZHOU) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-03
Publication Date
2026-03-17

AI Technical Summary

Technical Problem

Existing three- or multi-tub washing machines have complex structures and sealing mechanisms, which makes installation and maintenance inconvenient.

Method used

The design adopts a barrel structure, including a first barrel assembly and a third barrel assembly. It uses snap-fit ​​parts and seals to achieve a sealed connection between the front barrel and the rear barrel. The sealing connection method is simplified by the combination of snap-fit ​​protrusions and grooves and fasteners.

Benefits of technology

It achieves a simple and convenient sealing connection, ensuring the sealing effect of the garment processing equipment and reducing structural complexity and installation difficulty.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to clothes processing equipment which comprises a box body, a barrel body structure and a first sealing piece, the barrel body structure is contained in the box body, and the barrel body structure at least comprises a first barrel assembly and a third barrel assembly; the first barrel assembly comprises a first front barrel and a first rear barrel, the first front barrel and the first rear barrel are provided with a first clamping piece and a second clamping piece respectively, and the first clamping piece is matched with the second clamping piece; the first sealing piece is connected between the second clamping piece and the first clamping piece so that the first front barrel can be connected with the first rear barrel in a sealed mode. The sealing connection mode of the clothes processing equipment is simple in structure and convenient to install, and the sealing effect can be guaranteed.
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Description

Technical Field

[0001] This application relates to the field of clothing processing technology, and in particular to a clothing processing device. Background Technology

[0002] To meet the laundry needs of families, there are currently twin-tub, triple-tub, and multi-tub washing machines available, which can separate adult, children's, and underwear clothes for washing. This not only improves washing efficiency but also ensures the hygiene of all types of clothing.

[0003] Currently, three-tub or multi-tub washing machines have complex structures, and their sealing structures are also relatively complex. Utility Model Content

[0004] In view of this, the present application provides a garment processing device to solve at least one problem existing in the background art.

[0005] In a first aspect, embodiments of this application provide a garment processing device, the garment processing device comprising:

[0006] Box;

[0007] A barrel structure is housed inside the box, and the barrel structure includes at least a first barrel assembly and a third barrel assembly;

[0008] The first bucket assembly includes a first front bucket and a first rear bucket, the first front bucket and the first rear bucket are respectively provided with a first snap-fit ​​component and a second snap-fit ​​component, and the first snap-fit ​​component matches the second snap-fit ​​component;

[0009] The first sealing element abuts between the second snap-fit ​​element and the first snap-fit ​​element, so as to seal the connection between the first front bucket and the first rear bucket.

[0010] In conjunction with the first aspect of this application, in an optional embodiment, the first front tub protrudes from its outer wall and is provided with a first mounting member, and the first mounting member is provided with a first snap-fit ​​member on the side near the first rear tub;

[0011] The first rear bucket protrudes from its outer wall and is provided with a second mounting component, and the second mounting component is provided with a second snap-fit ​​component on the side near the first front bucket.

[0012] In conjunction with the first aspect of this application, in an optional embodiment, the third bucket assembly includes a third front bucket and a third rear bucket, the third front bucket and the third rear bucket respectively being provided with a third latching member and a fourth latching member, the third latching member being matched with the fourth latching member;

[0013] The garment processing equipment further includes a second sealing element, which is connected between the third snap-fit ​​element and the fourth snap-fit ​​element to ensure a sealed connection between the third front tub and the third rear tub.

[0014] In conjunction with the first aspect of this application, in an optional embodiment, the first snap-fit ​​member is a first snap-fit ​​protrusion, and the second snap-fit ​​member is a first snap-fit ​​groove that matches the first snap-fit ​​protrusion;

[0015] The third snap-fit ​​component is a second snap-fit ​​protrusion, and the fourth snap-fit ​​component is a second snap-fit ​​groove that matches the second snap-fit ​​protrusion;

[0016] The first snap-fit ​​groove and the second snap-fit ​​groove form a snap-fit ​​rib.

[0017] In conjunction with the first aspect of this application, in an optional embodiment, the snap-fit ​​rib is located on the line connecting the center of the circle containing the cross-section of the first barrel assembly and the center of the circle containing the cross-section of the third barrel assembly.

[0018] In conjunction with the first aspect of this application, in an optional embodiment, a snap-fit ​​groove is formed between the first snap-fit ​​protrusion and the second snap-fit ​​protrusion, the snap-fit ​​groove being located on the line connecting the center of the circle containing the cross-section of the first barrel assembly and the center of the circle containing the cross-section of the third barrel assembly.

[0019] The snap-fit ​​groove matches the snap-fit ​​protrusion.

[0020] In conjunction with the first aspect of this application, in an optional embodiment, the first mounting member is further provided with a plurality of first mounting holes, and the second mounting member is further provided with a plurality of second mounting holes that match the first mounting holes, wherein the axes of the second mounting holes and the first mounting holes are parallel to the axis of the first barrel assembly;

[0021] The garment processing device also includes a plurality of first fasteners, which are respectively inserted into a plurality of first mounting holes and second mounting holes to connect the first front tub and the first rear tub.

[0022] In conjunction with the first aspect of this application, in an optional embodiment, a plurality of the first mounting holes and the second mounting holes are circumferentially distributed around the axis of the first barrel assembly.

[0023] In conjunction with the first aspect of this application, in an optional embodiment, the garment processing apparatus further includes:

[0024] The second barrel assembly is arranged symmetrically with respect to the vertical plane where the central axis of the third barrel assembly is located;

[0025] The second bucket assembly includes a second front bucket and a second rear bucket. The second front bucket and the second rear bucket are connected to form a second outer bucket. The first front bucket, the second front bucket, and the third front bucket are integrally formed, and the first rear bucket, the second rear bucket, and the third rear bucket are integrally formed.

[0026] In conjunction with the first aspect of this application, in an alternative embodiment, the dimensions of the first bucket assembly and the second bucket assembly are smaller than the dimensions of the third bucket assembly.

[0027] The garment processing device provided in this application embodiment has a barrel structure that includes at least a first barrel assembly and a third barrel assembly. The first barrel assembly includes a first front barrel and a first rear barrel. The first front barrel and the first rear barrel are respectively provided with a first snap-fit ​​member and a second snap-fit ​​member. The first snap-fit ​​member matches the second snap-fit ​​member. A first sealing member is connected between the first snap-fit ​​member and the second snap-fit ​​member to achieve a sealed connection between the first front barrel and the first rear barrel. This sealed connection method has a simple structure, is easy to install, and can ensure a sealing effect.

[0028] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0029] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0030] Figure 1 This is a schematic diagram of the overall structure of the garment processing equipment provided in the embodiments of this application;

[0031] Figure 2 This is a schematic diagram of the internal structure of the garment processing equipment provided in the embodiments of this application;

[0032] Figure 3 A plan view showing the first rear tub, second rear tub, and third rear tub equipped with sealing rings in the garment processing device provided in the embodiments of this application;

[0033] Figure 4a A three-dimensional structural diagram of the first rear tub, the second rear tub, and the third rear tub in the garment processing device provided in the embodiments of this application;

[0034] Figure 4b for Figure 4a Enlarged view at point E in the middle;

[0035] Figure 5a A schematic diagram of the structure of the first front tub, the second front tub, and the third front tub in the garment processing device provided in the embodiments of this application;

[0036] Figure 5b for Figure 5a Enlarged view of point C in the middle;

[0037] Figure 6 A plan view of the first rear tub, second rear tub, and third rear tub in the garment processing device provided in the embodiments of this application, without the installation of sealing rings;

[0038] Figure 7a for Figure 2 Schematic diagram of the cross section at point BB;

[0039] Figure 7b for Figure 7a Enlarged view of point D in the middle.

[0040] Figure label:

[0041] 100. Garment processing equipment;

[0042] 10. Box body;

[0043] 20. Barrel structure;

[0044] 21. First bucket assembly; 211. First front bucket; 2111. First mounting component; 2112. First snap-fit ​​component; 2113. First snap-fit ​​protrusion; 2114. First mounting hole; 212. First rear bucket; 2121. Second mounting component; 2122. Second snap-fit ​​component; 2123. First snap-fit ​​groove; 2124. Second mounting hole;

[0045] 22. Second barrel assembly; 221. Second front barrel; 222. Second rear barrel;

[0046] 23. Third barrel assembly; 231. Third front barrel; 2311. Third snap-fit ​​component; 2312. Second snap-fit ​​protrusion; 232. Third rear barrel; 2321. Fourth snap-fit ​​component; 2322. Second snap-fit ​​groove; 2a. Snap-fit ​​slot; 2b. Snap-fit ​​rib;

[0047] 31. First seal; 32. Second seal; 33. Third seal;

[0048] 40. Suspension spring; 50. Shock-absorbing components. Detailed Implementation

[0049] To make the technical solution and beneficial effects of this utility model more apparent and understandable, a detailed description is provided below by listing specific embodiments. The accompanying drawings are not necessarily drawn to scale, and local features may be enlarged or reduced to more clearly show the details of the local features; unless otherwise defined, the technical and scientific terms used herein have the same meanings as those in the technical field to which this application pertains.

[0050] In the description of this utility model, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "height", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the purpose of simplifying the description of this utility model and do not indicate that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. In other words, they should not be construed as limitations on this utility model.

[0051] In this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating the relative importance of the indicated features or the number of indicated technical features. Therefore, a feature specified as "first" or "second" can explicitly indicate that at least one of those features is included. In the description of this utility model, "multiple" means at least two, such as two, three, etc.; "several" means at least one, such as one, two, three, etc., unless otherwise explicitly specified.

[0052] In this utility model, unless otherwise explicitly defined, the terms "installation," "connection," "linking," "fixing," and "setting," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can also refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0053] In this utility model, unless otherwise explicitly defined, the terms "above," "on top of," "above," "over," "below," "below," "below," or "below" for "first feature above second feature" can refer to direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Furthermore, "above," "above," and "over" for "first feature above second feature" can mean the first feature is directly above or diagonally above the second feature, or simply indicates that the horizontal height of the first feature is higher than the horizontal height of the second feature. Similarly, "below," "below," and "below" for "first feature below second feature" can mean the first feature is directly below or diagonally below the second feature, or simply indicates that the horizontal height of the first feature is lower than the horizontal height of the second feature.

[0054] The clothing processing device 100 in this application embodiment can be a washing machine, dryer, washer-dryer combo, etc.

[0055] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4a , Figure 4b , Figure 5a and Figure 5b The clothing processing device 100 provided in this application embodiment includes a housing 10, a barrel structure 20, a drive component (not shown in the figure), a suspension spring 40, and a shock absorption component 50.

[0056] The tub structure 20, drive unit, suspension spring 40, and shock-absorbing assembly 50 are all housed inside the housing 10. The two ends of the suspension spring 40 are connected to the inner wall of the housing 10 and the tub structure 20, respectively. The shock-absorbing assembly 50 is connected to the bottom of the tub structure 20 to balance the vibrations generated during the operation of the laundry processing equipment 100. The drive unit drives the inner tub within the tub structure 20 to rotate, thereby washing the clothes inside. The drive unit is preferably a DD motor, which offers stronger overall performance and improved washing results compared to traditional belt drives.

[0057] The tub structure 20 includes at least a first tub assembly 21, a second tub assembly 22, and a third tub assembly 23. The first tub assembly 21 and the second tub assembly 22 are symmetrically arranged with respect to the vertical plane where the central axis of the third tub assembly 23 is located. The arrangement of the three tub assemblies can meet the user's washing needs for different types of clothing.

[0058] The first bucket assembly 21 and the second bucket assembly 22 are located at the upper left and upper right of the third bucket assembly 23, respectively, and are arranged symmetrically. The first bucket assembly 21 and the second bucket assembly 22 have the same structure, and the size of the first bucket assembly 21 and the second bucket assembly 22 is smaller than the size of the third bucket assembly 23. The positional distribution of the three bucket assemblies can ensure the overall space occupied by the clothing processing equipment 100.

[0059] The first tub assembly 21, the second tub assembly 22, and the third tub assembly 23 have similar structures. The garment processing equipment 100 also includes a first seal 31, a second seal 32, and a third seal 33, which are sealing rings, but are not limited to these.

[0060] The first bucket assembly 21 includes a first front bucket 211 and a first rear bucket 212, each equipped with a first latching member 2112 and a second latching member 2122, respectively, with the first latching member 2112 matching the second latching member 2122. The third bucket assembly 23 includes a third front bucket 231 and a third rear bucket 232, each equipped with a third latching member 2311 and a fourth latching member 2321, respectively, with the third latching member 2311 matching the fourth latching member 2321. The second bucket assembly 22 includes a second front bucket 221 and a second rear bucket 222, each equipped with a fifth latching member and a sixth latching member, with the fifth latching member matching the sixth latching member.

[0061] The first sealing member 31 abuts between the first latching member 2112 and the second latching member 2122 to achieve a sealed connection between the first front drum 211 and the first rear drum 212. The second sealing member 32 is connected between the third latching member 2311 and the fourth latching member 2321 to achieve a sealed connection between the second front drum 221 and the second rear drum 222. The third sealing member 33 is connected between the fifth latching member and the sixth latching member to achieve a sealed connection between the third front drum 231 and the third rear drum 232.

[0062] The first front bucket 211 and the first rear bucket 212 are connected by a snap-fit ​​method between the first snap-fit ​​member 2112 and the second snap-fit ​​member 2122, and are sealed by the first sealing member 31. This sealing connection method has a simple structure, is easy to install, and can ensure the sealing effect.

[0063] In an optional embodiment, the first front tub 211, the second front tub 221, and the third front tub 231 are integrally formed, as are the first rear tub 212, the second rear tub 222, and the third rear tub 232. The first front tub 211, the second front tub 221, and the third front tub 231, as well as the first rear tub 212, the second rear tub 222, and the third rear tub 232, are integrally formed by injection molding to improve the structural strength of the tub structure 20 and reduce the assembly process of the garment processing equipment 100.

[0064] In one alternative embodiment, please refer to Figure 2 , Figure 4a , Figure 4b , Figure 5a and Figure 5b The first front tub 211 protrudes from its outer wall and is provided with a first mounting member 2111. The first mounting member 2111 is provided with a first snap-fit ​​member 2112 on the side near the first rear tub 212. The first rear tub 212 protrudes from its outer wall and is provided with a second mounting member 2121. The second mounting member 2121 is provided with a second snap-fit ​​member 2122 on the side near the first front tub 211.

[0065] The first mounting component 2111 and the second mounting component 2121 protrude from their outer walls, facilitating installation and ensuring connection and sealing effects. Additionally, the second front tank 221 and the second rear tank 222, as well as the third front tank 231 and the third rear tank 232, also have mounting components protruding from their outer walls, which will not be described further here.

[0066] In one alternative embodiment, please refer to Figure 4a , Figure 4b , Figure 5a and Figure 5bThe first snap-fit ​​component 2112 is a first snap-fit ​​protrusion 2113, and the second snap-fit ​​component 2122 is a first snap-fit ​​groove 2123 that matches the first snap-fit ​​protrusion 2113. The third snap-fit ​​component 2311 is a second snap-fit ​​protrusion 2312, and the fourth snap-fit ​​component 2321 is a second snap-fit ​​groove 2322 that matches the second snap-fit ​​protrusion 2312. The first snap-fit ​​groove 2123 and the second snap-fit ​​groove 2322 together form a snap-fit ​​rib 2b.

[0067] The first snap-fit ​​protrusion 2113 snaps into the first snap-fit ​​groove 2123, and the first sealing member 31 is located between the first snap-fit ​​protrusion 2113 and the first snap-fit ​​groove 2123, ensuring the sealing effect between the first front tub 211 and the first rear tub 212. Similarly, the second snap-fit ​​protrusion 2312 snaps into the second snap-fit ​​groove 2322, and the second sealing member 32 is located between the second snap-fit ​​protrusion 2312 and the second snap-fit ​​groove 2322. The snap-fit ​​rib 2b formed between the first snap-fit ​​groove 2123 and the second snap-fit ​​groove 2322 can serve as a shared groove wall between the first snap-fit ​​groove 2123 and the second snap-fit ​​groove 2322, reducing the distance between the first tub assembly 21 and the third tub assembly 23, thereby reducing the overall volume of the garment processing equipment 100. Similarly, the same structure is provided between the second tub assembly 22 and the third tub assembly 23.

[0068] In an optional embodiment, a first snap-fit ​​protrusion 2113 is disposed on a second mounting member 2121, and a first snap-fit ​​groove 2123 is disposed on a first mounting member 2111. It can be understood that the first mounting member 2111 of the first front tub 211 and the second mounting member 2121 of the first rear tub 212 can also be respectively provided with a second snap-fit ​​member 2122 and a first snap-fit ​​member 2112, that is, a first snap-fit ​​protrusion 2113 and a first snap-fit ​​groove 2123. In this way, a sealed connection between the first front tub 211 and the first rear tub 212 can also be achieved. Of course, the second front tub 221 and the second rear tub 222, and the third front tub 231 and the third rear tub 232 are also configured in this manner.

[0069] In an optional embodiment, the snap-fit ​​rib 2b is located on the line connecting the center of the circle containing the cross-section of the first barrel assembly 21 and the center of the circle containing the cross-section of the third barrel assembly 23 (i.e., Figure 6 On the dashed line L1 shown in the figure.

[0070] This can be understood as follows: the line connecting the center of the circle containing the cross-section of the first bucket component 21 and the center of the circle containing the cross-section of the third bucket component 23 passes through the position where the distance between the first bucket component 21 and the third bucket component 23 is minimized. The snap-fit ​​rib 2b is located on the line connecting the two centers. This ensures the connection strength between the first bucket component 21 and the third bucket component 23 while minimizing the distance between the snap-fit ​​ribs in the direction of the line connecting the two centers, thereby reducing the overall space occupied by the clothing processing equipment 100.

[0071] In one alternative embodiment, please refer to Figure 7a and Figure 7b The first snap-fit ​​protrusion 2113 and the second snap-fit ​​protrusion 2312 form a snap-fit ​​groove 2a, which is located on the line connecting the center of the circle containing the cross-section of the first barrel assembly 21 and the center of the circle containing the cross-section of the third barrel assembly 23. The snap-fit ​​groove 2a matches the snap-fit ​​rib 2b.

[0072] It can be understood that the first barrel assembly 21 achieves a sealed connection using the first snap-fit ​​protrusion 2113, the first snap-fit ​​groove 2123 and the first sealing element 31, while the third barrel assembly 23 achieves a sealed connection using the second snap-fit ​​protrusion 2312, the second snap-fit ​​groove 2322 and the second sealing element 32. At the connection between the first barrel assembly 21 and the second barrel assembly 22, there are also snap-fit ​​grooves 2a and snap-fit ​​ribs 2b that snap together with each other, so as to further improve the connection effect and sealing effect between the front barrel and the rear barrel.

[0073] Of course, the second barrel assembly 22 and the third barrel assembly 23 also have the same structure, which will not be described in detail here.

[0074] In one alternative embodiment, please refer to Figure 4a and Figure 5a The first mounting component 2111 is also provided with a plurality of first mounting holes 2114, and the second mounting component 2121 is also provided with a plurality of second mounting holes 2124 that match the first mounting holes 2114. The axes of the second mounting holes 2124 and the first mounting holes 2114 are parallel to the axis of the first barrel assembly 21.

[0075] The garment handling equipment 100 also includes a plurality of first fasteners (not shown in the figure), which are respectively inserted into a plurality of first mounting holes 2114 and second mounting holes 2124 to connect the first front tub 211 and the first rear tub 212. Of course, the second tub assembly 22 and the third tub assembly 23 also have the same structure to realize the connection between the second front tub 221 and the second rear tub 222, and the third front tub 231 and the third rear tub 232.

[0076] Multiple first fasteners are used to achieve a tight connection between the front and rear drums, thereby ensuring a sealed connection between the front and rear drums. This connection method is easy to install, simple to operate, and can guarantee a sealing effect.

[0077] Multiple first mounting holes 2114 and second mounting holes 2124 are circumferentially distributed around the axis of the first barrel assembly 21, which can further ensure the connection and sealing effect between the front barrel and the rear barrel. Preferably, the multiple first mounting holes 2114 and second mounting holes 2124 are evenly distributed.

[0078] It should be understood that the above embodiments are exemplary and are not intended to encompass all possible implementations included in the claims. Various modifications and changes can be made to the above embodiments without departing from the scope of this disclosure. Similarly, the various technical features of the above embodiments can be arbitrarily combined to form other embodiments of this application that may not be explicitly described. Therefore, the above embodiments only illustrate several implementations of this application and do not limit the scope of protection of this patent application.

Claims

1.A laundry treating apparatus, characterized by, The laundry treating apparatus (100) comprises: a cabinet (10); a tub structure (20) accommodated inside the cabinet (10), the tub structure (20) comprising at least a first tub assembly (21) and a third tub assembly (23); the first tub assembly (21) comprising a first front tub (211) and a first rear tub (212), the first front tub (211) and the first rear tub (212) being respectively provided with a first clamping member (2112) and a second clamping member (2122), the first clamping member (2112) matching the second clamping member (2122); a first sealing member (31) abutting between the second clamping member (2122) and the first clamping member (2112) to enable the first front tub (211) and the first rear tub (212) to be sealingly connected. 2.The laundry treating apparatus of claim 1, wherein the first front tub (211) being provided with a first mounting member (2111) protruding from an outer wall thereof, the first mounting member (2111) being provided with the first clamping member (2112) near a side of the first mounting member (2111) close to the first rear tub (212); the first rear tub (212) being provided with a second mounting member (2121) protruding from an outer wall thereof, the second mounting member (2121) being provided with the second clamping member (2122) near a side of the second mounting member (2121) close to the first front tub (211). 3.The laundry treating apparatus of claim 2, wherein the third tub assembly (23) comprising a third front tub (231) and a third rear tub (232), the third front tub (231) and the third rear tub (232) being respectively provided with a third clamping member (2311) and a fourth clamping member (2321), the third clamping member (2311) matching the fourth clamping member (2321); the laundry treating apparatus (100) further comprising a second sealing member (32) connected between the third clamping member (2311) and the fourth clamping member (2321) to enable the third front tub (231) and the third rear tub (232) to be sealingly connected. 4.The laundry treating apparatus of claim 3, wherein the first clamping member (2112) being a first clamping protrusion (2113), the second clamping member (2122) being a first clamping groove (2123) matching the first clamping protrusion (2113); the third clamping member (2311) being a second clamping protrusion (2312), the fourth clamping member (2321) being a second clamping groove (2322) matching the second clamping protrusion (2312); the first clamping groove (2123) and the second clamping groove (2322) forming a clamping protruding rib (2b) therebetween. 5.The laundry treating apparatus according to claim 4, wherein, the clamping protruding rib (2b) being located on a line connecting a center of a circle in which a cross section of the first tub assembly (21) lies and a center of a circle in which a cross section of the third tub assembly (23) lies. 6.The laundry treating apparatus according to claim 4, wherein, the first clamping protrusion (2113) and the second clamping protrusion (2312) forming a clamping groove (2a) therebetween, the clamping groove (2a) being located on the line connecting the center of the circle in which the cross section of the first tub assembly (21) lies and the center of the circle in which the cross section of the third tub assembly (23) lies; the clamping groove (2a) matching the clamping protruding rib (2b). 7.The laundry treating apparatus according to claim 2, wherein, The first mounting member (2111) is further provided with a plurality of first mounting holes (2114), and the second mounting member (2121) is further provided with a plurality of second mounting holes (2124) matched with the first mounting holes (2114), the axes of the second mounting holes (2124) and the first mounting holes (2114) being parallel to the axis of the first tub assembly (21); The laundry treating apparatus (100) further includes a plurality of first fasteners respectively inserted into the plurality of first mounting holes (2114) and the plurality of second mounting holes (2124) to connect the first front tub (211) and the first rear tub (212). 8.The laundry treating apparatus according to claim 7, wherein, The plurality of first mounting holes (2114) and the plurality of second mounting holes (2124) are circumferentially distributed around the axis of the first tub assembly (21). 9.The laundry treating apparatus according to claim 3, wherein, The laundry treating apparatus (100) further includes: The first tub assembly (21) and the second tub assembly (22) are symmetrically arranged with respect to a vertical plane in which the central axis of the third tub assembly (23) is located; The second tub assembly (22) includes a second front tub (221) and a second rear tub (222), and the second front tub (221) and the second rear tub (222) are connected to form a second outer tub, the first front tub (211), the second front tub (221), and the third front tub (231) are integrally formed, and the first rear tub (212), the second rear tub (222), and the third rear tub (232) are integrally formed. 10.The laundry treating apparatus according to claim 9, characterized by, The sizes of the first tub assembly (21) and the second tub assembly (22) are smaller than the size of the third tub assembly (23).