Washing and Drying Machine

Abstract

The present invention provides a washing and drying machine, comprising a drying air duct connected to a rear drum via a flexible connection assembly, the drying air duct having an air outlet, the rear drum having an air inlet, the flexible connection assembly having an air passage, one end of the air passage communicating with the air outlet, and the other end of the air passage communicating with the air inlet, the flexible connection assembly comprising a carcass and at least two ribs, the carcass comprising a first region and a second region, the carcass thickness of the first region being less than the carcass thickness of the second region, the ribs being spaced apart in the first region, the ribs being used to prevent the carcass from self-wearing under shaking. According to the present invention, shaking during operation of the washing and drying machine may cause the first region of the carcass to be distorted, and such distortion may cause mutual friction and wear at different locations in the first region. By providing a plurality of spaced apart ribs on the first region, when the carcass is distorted, these ribs may enhance the structural strength of the first region and abut against each other, thereby preventing the carcass from self-wearing.

Description

Technical Field

[0001] The invention belongs to the technical field of clothing washing, and particularly relates to a washing and drying machine. Background Art

[0002] A flexible connection is often used between the air duct components and the outer drum of a washing and drying machine. Since the drum component is a moving part and the air duct component is a fixed part, the flexible connection structure (usually a rubber disc) is prone to self-wear or mutual wear with adjacent parts under the action of vibration during operation. In order to solve this problem, the present invention designs a flexible connection structure that prevents self-wear and mutual wear; secondly, the flexible connection structure of the air duct components of a washing and drying machine is generally fastened by two upper and lower clamps. This assembly method limits the manual operation space and the assembly efficiency is too low. Therefore, how to reasonably arrange the assembly order of the air duct components is another problem solved by the present invention. Summary of the Invention

[0003] Therefore, the present invention provides a washer-dryer that can solve the technical problem that a rubber disc used to connect a drying air duct and an outer drum is prone to self-wear under vibration when the washer-dryer is in operation.

[0004] In order to solve the above problems, the present invention provides a washing and drying machine, comprising: a drying duct, an outer drum and a soft connection assembly, the outer drum including a rear drum, the drying duct being connected to the rear drum through the soft connection assembly, the drying duct having an air outlet, the rear drum having an air inlet, the soft connection assembly having an air passage, one end of the air passage being connected to the air outlet, and the other end of the air passage being connected to the air inlet, the soft connection assembly comprising a connecting plate, the connecting plate comprising a carcass and at least two ribs, the carcass comprising a first area and a second area, the carcass thickness of the first area being less than the carcass thickness of the second area, the ribs being spaced apart in the first area, and the ribs being used to prevent the carcass from self-wearing under shaking.

[0005] In some embodiments, the ribs are provided on both the inner surface and the outer surface of the first region.

[0006] In some embodiments, the rib extends from a side of the carcass facing the air outlet to a side of the carcass facing the air inlet.

[0007] In some embodiments, the connecting plate also includes a plurality of bosses arranged on the carcass, each of the bosses is distributed at intervals along the circumference of the carcass, and the bosses extend from the carcass to a direction close to the drying air duct. The bosses are used to prevent the carcass and the drying air duct from wearing each other under the action of shaking.

[0008] In some embodiments, the soft connection assembly further includes a bracket, and the carcass is connected to the drying air duct via the bracket.

[0009] In some embodiments, the bracket has a hanging portion facing the carcass, and the hanging portion is hung on the inner wall of the carcass.

[0010] In some embodiments, the carcass has a first lip facing the bracket, and the first lip is sleeved on the hanging portion. The soft connection assembly also includes a first clamp, which is sleeved on the outer peripheral side of the first lip to lock the first lip on the hanging portion.

[0011] In some embodiments, a first alignment structure is provided on the bracket, a first alignment and matching structure is provided on the first lip, and the first alignment structure is plugged into and matched with the first alignment and matching structure.

[0012] In some embodiments, a second alignment structure is provided on the bracket, and a second alignment and matching structure is provided on the drying air duct, and the second alignment structure is plugged and matched with the second alignment and matching structure.

[0013] In some embodiments, a mounting groove is configured on the bracket, the mounting groove is located on a side of the bracket facing the air outlet, and a sealing member is disposed in the mounting groove.

[0014] The present invention also provides a method for assembling a washer-dryer, which is used to assemble the above-mentioned washer-dryer. The washer-dryer further includes a fastener, a second clamp, and a box. The assembly method includes the following steps:

[0015] S1, using the first clamp to fix the bracket and the connecting plate to form the flexible connection assembly;

[0016] S2, fixing the flexible connection assembly to the drying air duct using the fastener;

[0017] S3, using the second clamp to fix the flexible connection assembly to the rear drum to form a drum assembly;

[0018] S4, hoisting the drum assembly into the box.

[0019] The invention provides a washer-dryer having the following beneficial effects:

[0020] During the operation of the washing and drying machine, violent shaking causes the carcass of the connecting disc to be twisted, and the twisting is likely to occur in the relatively weak first area. This twisting will cause mutual friction and tearing at different positions in the first area, resulting in wear. By arranging multiple spaced ribs on the first area, when the carcass is twisted, these ribs can not only enhance the structural strength of the first area to resist tearing, but also abut against each other to prevent mutual friction at different positions in the first area, thereby preventing the carcass from self-wear. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are merely exemplary, and those skilled in the art can, without inventive effort, derive other implementation drawings based on the provided drawings.

[0022] Figure 1 This is a schematic structural diagram from a first perspective of a connection disk of a flexible connection assembly of a washer-dryer according to an embodiment of the present invention;

[0023] Figure 2 This is a schematic structural diagram from a second perspective of a connection plate of a flexible connection assembly of a washer-dryer according to an embodiment of the present invention;

[0024] Figure 3 This is a schematic structural diagram from a first perspective of a bracket of a flexible connection assembly of a washer-dryer according to an embodiment of the present invention;

[0025] Figure 4 This is a schematic structural diagram from a second perspective of a bracket of a flexible connection assembly of a washer-dryer according to an embodiment of the present invention;

[0026] Figure 5 Schematic diagram of an explosion of a drum assembly of a washer-dryer according to an embodiment of the present invention;

[0027] Figure 6 Schematic diagram of the structure of a drum assembly of a washer-dryer according to an embodiment of the present invention;

[0028] Figure 7 This is a structural schematic diagram of a drum assembly of a washer-dryer according to an embodiment of the present invention installed in a housing;

[0029] Figure 8 This is an assembly flow chart of a washer-dryer according to an embodiment of the present invention.

[0030] The reference numerals indicate:

[0031] 1. Drying air duct; 2. Rear cylinder; 3. Flexible connection assembly; 31. Connecting plate; 311. Carcass; 312. Raised rib; 313. Boss; 314. First lip; 315. First alignment structure; 316. Second lip; 317. Third alignment structure; 32. Bracket; 321. Hanging part; 322. First alignment structure; 323. Second alignment structure; 324. Extension part; 33. First clamp; 34. Seal; 35. Fastener; 36. Second clamp; 4. Mounting groove; 5. Box body. DETAILED DESCRIPTION

[0032] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0034] It should be understood that the term "and / or" as used herein is merely a description of the relationship between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A exists alone, A and B exist simultaneously, or B exists alone. Furthermore, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0035] Unless otherwise specifically stated, the relative arrangement of the parts and steps, the numerical expressions and the numerical values ​​set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The techniques, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific values ​​should be interpreted as being merely exemplary and not as limiting. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, and therefore, once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0036] In the description of the present invention, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, perpendicular, horizontal" and "top, bottom" are usually 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. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0037] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0038] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0039] See also Figures 1 to 7As shown, according to an embodiment of the present invention, a washing and drying machine is provided, including: a drying duct 1, an outer drum and a soft connection component 3, the outer drum includes a rear drum 2, the drying duct 1 is connected to the rear drum 2 through the soft connection component 3, the drying duct 1 has an air outlet, the rear drum 2 has an air inlet, the soft connection component 3 has an air passage, one end of the air passage is connected to the air outlet, and the other end of the air passage is connected to the air inlet, the soft connection component 3 includes a connecting plate 31, the connecting plate 31 includes a carcass 311 and at least two ribs 312, the carcass 311 includes a first area and a second area, the carcass thickness of the first area is less than the carcass thickness of the second area, and each of the ribs 312 is arranged at intervals in the first area, and the ribs 312 are used to prevent the carcass 311 from self-wearing under shaking.

[0040] In this technical solution, during the operation of the washer-dryer, violent shaking can cause the carcass 311 of the connecting disc 31 to twist. This twisting is particularly likely to occur in the relatively weak first region. This twisting can cause friction and tearing at different locations in the first region, resulting in wear. By providing multiple spaced ribs 312 on the first region, when the carcass 311 twists, these ribs 312 not only strengthen the structural strength of the first region to resist tearing, but also abut against each other to prevent friction at different locations in the first region, thereby preventing self-wear of the carcass 311. The carcass 311 is equivalent to the rubber disc in the prior art, and the height of the ribs 312 does not exceed the carcass wall thickness in the first region.

[0041] See also Figure 1 、 Figure 2 and Figure 7 As shown, since the drying duct 1 is tilted relative to the rear drum 2, that is, the drying duct 1 is located obliquely above the rear drum 2, the distance between the drying duct 1 and the rear drum 2 gradually changes along the circumferential direction of the rear drum 2, which makes the space sizes of different areas between the two different. The different space sizes make the second area of ​​the carcass 311 away from the top of the rear drum 2 can be designed to be relatively large, while the first area of ​​the carcass 311 close to the top of the rear drum 2 is designed to be relatively weak. Therefore, the carcass 311 is an irregular structure composed of the first area and the second area.

[0042] See also Figure 1 and Figure 2 As shown, ribs 312 are provided on both the inner and outer surfaces of the first region, which can ensure that the inner and outer surfaces of the first region of the carcass 311 will not wear out, thereby improving the anti-wear effect. It should be noted that the ribs 312 on the inner and outer surfaces of the first region are not shown in the drawings.

[0043] See also Figure 1 and Figure 2As shown, the rib 312 extends from the side of the carcass 311 facing the air outlet to the side of the carcass 311 facing the air inlet.

[0044] In this embodiment, the rib 312 is equivalent to spanning the entire tread of the carcass 311 , and the protection area of ​​the carcass 311 is larger, which can further enhance the anti-self-wear effect of the carcass 311 .

[0045] See also Figure 1 As shown, the connecting plate 31 also includes a plurality of bosses 313 arranged on the carcass 311, and each boss 313 is distributed at intervals along the circumference of the carcass 311. The bosses 313 extend from the carcass 311 to a direction close to the drying duct 1. The bosses 313 are used to prevent the carcass 311 and the drying duct 1 from wearing each other under the action of shaking.

[0046] In this technical solution, under the action of shaking, in addition to self-wear, the carcass 311 will also come into contact with the drying duct 1 and rub against each other, resulting in mutual wear. By providing a plurality of spaced-apart protrusions 313 on the carcass 311, with each protrusion 313 pointing toward the drying duct 1, even if the washing and drying machine shakes during operation, it will be the protrusions 313 that will contact the drying duct 1, and the carcass 311 will not come into contact with the drying duct 1, thereby preventing mutual wear between the carcass 311 and the drying duct 1. At the same time, the first area of ​​the carcass 311 is also constructed with a groove, which can reduce the carcass height in the first area, thus further preventing the first area from contacting and rubbing with the drying duct 1 under the action of shaking. Among them, each rib 312 has a portion located in the groove, and a certain number of protrusions 313 are also arranged in the groove. Preferably, the bosses 313 are hollow with a wall thickness of approximately 2 mm. Using the bosses 313 for wear protection requires less material than thickening the entire tire body surface, thus not affecting the toughness of the tire body 311. Furthermore, due to the small size of the bosses 313, each boss 313 does not significantly affect the molding of the tire body 311 or the dimensional control after molding, thereby ensuring the dimensional accuracy of the tire body 311 after molding.

[0047] See also Figure 4 As shown, the soft connection assembly 3 further includes a bracket 32 ​​, and the carcass 311 is connected to the drying air duct 1 via the bracket 32 ​​.

[0048] In this embodiment, the existing technology uses a clamp to fix the rubber disc and the drying duct 1. This assembly method limits the space for manual operation and the assembly efficiency is too low. The present application improves the assembly efficiency of the washing and drying machine by providing a bracket 32, which serves as a connecting bridge between the tire body 311 and the drying duct 1. Among them, a plurality of extensions 324 are arranged at intervals on the bracket 32, and each extension is constructed with a through threaded hole. The bracket 32 ​​can be connected to the drying duct 1 by passing the fastener 35 through the threaded hole, thereby realizing the assembly of the tire body 311 and the drying duct 1. It should also be noted that the drying duct 1 is a sheet metal structure. When the washing and drying machine is running in the drying mode, the drying duct 1 becomes a high-temperature component. The bracket 32 ​​acts as a transition connector to effectively prevent the tire body 311 from being damaged by the high temperature inside the drying duct 1. It should be noted that the air passage of the soft connection component 3 passes through the bracket 32 ​​and the tire body 311.

[0049] See also Figure 1 and Figure 3 As shown, the bracket 32 ​​has a hanging portion 321 facing the carcass 311 , and the hanging portion 321 is hung on the inner wall of the carcass 311 .

[0050] In this technical solution, by providing a hanging portion 321 on the bracket 32, the bracket 32 ​​can be hung together with the tire body 311 in a natural state, so there is no need to pinch the two together by hand, thereby facilitating subsequent further fixing work.

[0051] In a specific embodiment, the carcass 311 has a first lip 314 facing the bracket 32, and the first lip 314 is sleeved on the hanging portion 321. The soft connection assembly 3 also includes a first clamp 33, which is sleeved on the outer peripheral side of the first lip 314 to lock the first lip 314 on the hanging portion 321.

[0052] In this embodiment, the attachment portion 321 includes an annular sidewall and an extension wall extending radially outward from the annular sidewall. The extension wall is configured to be attached to the inner wall of the carcass 311. The first lip 314 is sleeved onto the annular sidewall. By tightening the first lip 314 with the first clamp 33, the first lip 314 and the annular sidewall are fixed together, thereby firmly connecting the bracket 32 ​​to the carcass 311.

[0053] As shown in FIG. 3 , a first alignment structure 322 is provided on the bracket 32 ​​, and a first alignment and matching structure 315 is provided on the first lip 314 . The first alignment structure 322 is plugged into and matched with the first alignment and matching structure 315 .

[0054] In this embodiment, to prevent assembly errors caused by circular parts that lack a sense of assembly direction, a first alignment structure 322 is provided on the bracket 32, and a first alignment and matching structure 315 is provided on the first lip 314. The first alignment structure 322 and the first alignment and matching structure 315 are plugged and mated to ensure accurate assembly of the bracket 32 ​​and the carcass 311. The first alignment structure 322 is an insert provided on the bracket 32, and the first alignment and matching structure 315 is a socket constructed on the first lip 314. Accurate alignment is achieved by inserting the insert into the socket.

[0055] See also Figure 4 As shown, a second alignment structure 323 is provided on the bracket 32, and a second alignment and matching structure (not shown in the figure) is provided on the drying air duct 1, and the second alignment structure 323 is plugged and matched with the second alignment and matching structure.

[0056] In this technical solution, a second alignment structure 323 is provided on the bracket 32, and a second alignment and matching structure is provided on the drying duct 1. The second alignment structure 323 is plugged into the second alignment and matching structure to ensure the accurate assembly of the bracket 32 ​​and the drying duct 1. The second alignment structure 323 is an insert provided on the bracket 32, and the second alignment and matching structure is a socket constructed on the drying duct 1.

[0057] See also Figure 4 As shown, a mounting groove 4 is constructed on the bracket 32 ​​. The mounting groove 4 is located on the side of the bracket 32 ​​facing the air outlet. A sealing member 34 is provided in the mounting groove 4 .

[0058] In this embodiment, the sealing member 34 can seal the bracket 32 ​​and the air outlet of the drying air duct 1 to prevent air leakage at the air outlet.

[0059] See also Figure 2 As shown, the carcass 311 also has a second lip 316 facing the rear barrel 2. The second lip 316 is mounted on the air inlet of the rear barrel 2. The flexible connection assembly 3 also includes a second clamp 36. The second clamp 36 is mounted on the outer peripheral side of the second lip 316 to fix the second lip 316 to the air inlet, thereby firmly connecting the carcass 311 and the rear barrel 2. Furthermore, a third alignment structure (not shown) is provided on the rear barrel 2, and a third alignment and matching structure 317 is provided on the second lip 316. The third alignment structure and the third alignment and matching structure 317 engage and cooperate to ensure accurate assembly of the carcass 311 and the rear barrel 2. The third alignment structure is a protrusion provided on the rear barrel 2, and the third alignment and matching structure 317 is a slot constructed on the second lip 316.

[0060] The present invention also provides an assembly method for a washing and drying machine. The assembly order of the washing and drying machine is to fasten the bracket 32 ​​and the connecting plate 31 through the first clamp 33 to form a flexible connection component 3, and then install the flexible connection component 3 on the drying duct 1 through four fasteners 35, and install a seal 34 in the middle. Such a layout can effectively avoid the problem of assembly difficulty when the carcass 311 is directly installed on the drying duct 1. Next, the assembled flexible connection component 3 is fixed to the rear drum 2 through the second clamp 36 to form a drum assembly, and finally the drum assembly is hoisted into the box 5 of the washing and drying machine to form the whole machine. In this way, the assembly is basically completed. The reason why the drying duct 1 is installed on the drum first and then hoisted instead of hoisting first and then installing the drying duct 1 is because it is too difficult to install the second clamp 36 after hoisting, and it is too restricted by the surroundings of the box. Figure 8 In the figure, the assembly bracket 3 is the bracket 32, the rubber disc 6 is the connecting disc 31, the first clamp 5 is the first clamp 33, the screw 4 is the fastener 35, the sealing ring 2 is the sealing member 34, the second clamp 7 is the second clamp 36, and the box body 10 is the box body 5.

[0061] It is easy for those skilled in the art to understand that, under the premise of no conflict, the advantageous technical features of the above-mentioned methods can be freely combined and superimposed.

[0062] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention. The above are merely preferred embodiments of the present invention. It should be noted that those skilled in the art may make various improvements and variations without departing from the technical principles of the present invention, and such improvements and variations shall also be considered within the scope of protection of the present invention.

Claims

1. A washer-dryer, characterized in that: The invention comprises a drying air duct (1), an outer cylinder and a soft connection component (3), wherein the outer cylinder comprises a rear cylinder (2), the drying air duct (1) is connected to the rear cylinder (2) via the soft connection component (3), the drying air duct (1) has an air outlet, the rear cylinder (2) has an air inlet, the soft connection component (3) has an air passage, one end of the air passage is connected to the air outlet, and the other end of the air passage is connected to the air inlet, the soft connection component (3) comprises a connecting plate (31), the connecting plate (31) comprises a carcass (311) and at least two ribs (312), the carcass (311) comprises a first area and a second area, the carcass thickness of the first area is less than the carcass thickness of the second area, the ribs (312) are arranged at intervals in the first area, and the ribs (312) are used to prevent the carcass (311) from self-wearing under the action of shaking.

2. The washer-dryer according to claim 1, characterized in that: The ribs (312) are provided on both the inner surface and the outer surface of the first region.

3. The washer-dryer according to claim 1 or 2, characterized in that: The convex rib (312) extends from a side of the carcass (311) facing the air outlet to a side of the carcass (311) facing the air inlet.

4. The washer-dryer according to claim 1, characterized in that: The connecting disc (31) further comprises a plurality of bosses (313) arranged on the carcass (311), wherein the bosses (313) are spaced apart along the circumference of the carcass (311), and the bosses (313) extend from the carcass (311) in a direction close to the drying air duct (1). The bosses (313) are used to prevent the carcass (311) and the drying air duct (1) from wearing each other due to shaking.

5. The washer-dryer according to claim 1, characterized in that: The soft connection assembly (3) further comprises a bracket (32), and the carcass (311) is connected to the drying air duct (1) via the bracket (32).

6. The washer-dryer according to claim 5, characterized in that: The bracket (32) has a hanging portion (321) facing the carcass (311), and the hanging portion (321) is hung on the inner wall of the carcass (311).

7. The washer-dryer according to claim 6, characterized in that: The carcass (311) has a first lip (314) facing the bracket (32), and the first lip (314) is sleeved on the hanging portion (321). The soft connection assembly (3) also includes a first clamp (33), and the first clamp (33) is sleeved on the outer peripheral side of the first lip (314) to lock the first lip (314) on the hanging portion (321).

8. The washer-dryer according to claim 7, characterized in that: A first alignment structure (322) is provided on the bracket (32), a first alignment matching structure (315) is provided on the first lip (314), and the first alignment structure (322) and the first alignment matching structure (315) are plug-fitted.

9. The washer-dryer according to claim 6, characterized in that: The bracket (32) is provided with a second alignment structure (323), and the drying air duct (1) is provided with a second alignment matching structure, and the second alignment structure (323) is plug-fitted with the second alignment matching structure.

10. The washer-dryer according to any one of claims 5 to 9, characterized in that: A mounting groove (4) is formed on the bracket (32), the mounting groove (4) is located on a side of the bracket (32) facing the air outlet, and a sealing member (34) is provided in the mounting groove (4).

11. A method for assembling a washer-dryer, characterized in that: Used for assembling the washer-dryer according to claim 7, the washer-dryer further comprising a fastener (35), a second clamp (36) and a box (5), the assembly method comprising the following steps: S1, using the first clamp (33) to fix the bracket (32) and the connecting plate (31) to form the soft connection assembly (3); S2, using the fastener (35) to fix the flexible connection assembly (3) to the drying air duct (1); S3, using the second clamp (36) to fix the soft connection assembly (3) and the rear cylinder (2) to form a roller assembly; S4, hoisting the drum assembly into the box (5).

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