Laundry treating apparatus

By placing the heat pump system above the first cylinder at the top and optimizing the piping design, the problems of difficult layout and low drying efficiency of heat pump systems in the prior art are solved, achieving efficient clothes drying and convenient maintenance.

CN121519280APending Publication Date: 2026-02-13QINGDAO HAIER WASHING MASCH CO LTD +1
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Patent Information

Application Number
CN202411109812.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-08-13
Publication Date
2026-02-13

AI Technical Summary

Technical Problem

The existing heat pump systems for twin-tub and multi-tub washing machines are difficult to install and affect drying efficiency.

Method used

The heat pump system is placed above the first cylinder at the top, and the design of the air exchange, supply air and return air ducts enables the heat pump system to be rationally arranged and scaled up, making use of the space behind the first cylinder to enhance drying efficiency and facilitate maintenance.

Benefits of technology

It improves drying efficiency, simplifies the layout and maintenance of the heat pump system, makes full use of equipment space, and avoids increasing equipment size.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of clothes treatment equipment, in particular to clothes treatment equipment, and aims to solve the problems that in the prior art, heat pump systems of double-drum and multi-drum washing machines are difficult to arrange, and the drying efficiency is affected. In order to achieve the purpose, the clothes processing equipment comprises a barrel assembly, a clothes processing device and a clothes processing device, the barrel assembly comprises a first barrel and a second barrel, and the first barrel is arranged above the second barrel; and the drying assembly is used for providing hot air for the barrel assembly, the drying assembly comprises a heat pump system, the heat pump system is used for heating air, and the heat pump system is arranged above the first barrel. The heat pump system is arranged above the first barrel at the top, so that the heat pump system can be correspondingly arranged to be large in size, wet air is fully heated and dried, the drying efficiency is improved, the heat pump system is convenient to disassemble, assemble and maintain, meanwhile, the space behind the first barrel is released, and the heat pump system is convenient to use. The arrangement of related parts of the heat pump system is facilitated, and more space is provided for setting the depth value of the first cylinder.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of clothes processing equipment, and specifically provides a clothes processing equipment. BACKGROUND

[0002] With the progress of the times and the improvement of living standards, people have new demands for clothes washing. Many users will classify the clothes when washing, such as washing underwear and outerwear separately, washing baby clothes and adult clothes separately, washing clothes with different dirt levels separately, and washing clothes with different colors separately. Using a single-cylinder washing machine has the problems of small amount of clothes washed each time, inability to fully utilize the capacity of the washing machine, and thus causing waste of water and energy, which does not meet the requirements of environmental protection and energy saving. Therefore, double-cylinder and multi-cylinder washing machines are increasingly entering people's lives.

[0003] Double-cylinder and multi-cylinder washing machines with drying function usually install a heat pump system at the rear side of the top cylinder. Due to the limited space at the rear side of the top cylinder, the volume of the heat pump system is limited, which affects the heating and drying efficiency of the heat pump system. In addition, due to the complexity of the components related to the heat pump system in double-cylinder and multi-cylinder washing machines, the limited space at the rear side of the top cylinder makes it difficult to arrange the components related to the heat pump system.

[0004] Correspondingly, there is a need in the art for a new clothes processing equipment to solve the above problems. SUMMARY

[0005] The present application aims to solve the above technical problems, i.e., to solve the problem of difficulty in arranging the heat pump system of the double-cylinder and multi-cylinder washing machine in the prior art and affecting the drying efficiency.

[0006] The present application provides a clothes processing equipment, which comprises a cylinder assembly, a drying assembly, wherein the cylinder assembly comprises a first cylinder and a second cylinder, the first cylinder is arranged above the second cylinder, the drying assembly is used to provide hot air for the cylinder assembly, the drying assembly comprises a heat pump system, the heat pump system is used to heat air, and the heat pump system is arranged above the first cylinder.

[0007] In the above technical solution, by arranging the heat pump system above the first cylinder at the top, the heat pump system can be correspondingly set to a larger volume, thereby fully heating and drying the wet air, improving the drying efficiency, and releasing the space behind the first cylinder, facilitating the arrangement of components related to the heat pump system and providing more space for the depth value of the first cylinder. In addition, by arranging the heat pump system at the topmost position, the disassembly and maintenance of the heat pump system are also facilitated.

[0008] In the specific embodiment of the above laundry treatment device, the drying assembly further comprises: an air exchange pipeline, the heat pump system heats air in the air exchange pipeline, the air exchange pipeline is arranged above the first drum; an air supply pipeline, the air supply pipeline is used to guide the air in the air exchange pipeline to the drum assembly; an air return pipeline, the air return pipeline is used to guide the air of the drum assembly to the air exchange pipeline, the air return pipeline is arranged behind the first drum.

[0009] In the above technical solution, the air in the air exchange pipeline is heated by the heat pump system, then enters the drum assembly through the air supply pipeline, and the humid air in the drum assembly returns to the air exchange pipeline through the air return pipeline for heating and drying, thereby achieving the drying of the laundry in the drum assembly. The air return pipeline is arranged behind the first drum, thereby making full use of the space behind the first drum, avoiding the increase of the size of the laundry treatment device, and facilitating the arrangement of the air return pipeline.

[0010] In the specific embodiment of the above laundry treatment device, the drum assembly further comprises a third drum, the third drum is arranged below the second drum, the volume of the first drum is smaller than the volume of the second drum, and the volume of the second drum is less than or equal to the volume of the third drum.

[0011] In the above technical solution, the volume of the upper drum is small, and the volume of the lower drum is large, which helps to improve the stability of the laundry treatment device. The volume of the first drum at the top is the smallest, so that the space behind the first drum can be large, thereby facilitating the arrangement of the pipelines, joints and other components related to the heat pump system above the first drum.

[0012] In the specific embodiment of the above laundry treatment device, the drum assembly further comprises a fourth drum, the fourth drum and the first drum are arranged transversely, the second drum is arranged directly below the middle of the first drum and the fourth drum, and the volume of the fourth drum is equal to the volume of the first drum.

[0013] In the above technical solution, the top drum with a small volume can be transversely arranged with two or more drums to meet different use requirements.

[0014] In the specific embodiment of the above laundry treatment device, the air return pipeline comprises a first pipeline, a second pipeline and a third pipeline, the first pipeline communicates with the air exchange pipeline, the second pipeline communicates with the second drum, and the third pipeline communicates with the third drum; the drying assembly further comprises a first air return switching structure, the first pipeline, the second pipeline and the third pipeline are connected with the first air return switching structure respectively, and the first air return switching structure is used to control the opening and closing of the first pipeline and the second pipeline and / or the third pipeline.

[0015] In the technical scheme, the first return air switching structure controls the opening and closing of the first pipeline and the second pipeline and / or the third pipeline, so that when the first pipeline is in communication with the second pipeline and the first pipeline is disconnected with the third pipeline, only the air in the second cylinder can return to the air exchange pipeline, thereby realizing drying treatment of only the second cylinder; when the first pipeline is in communication with the third pipeline and the first pipeline is disconnected with the second pipeline, only the air in the third cylinder can return to the air exchange pipeline, thereby realizing drying treatment of only the third cylinder; and when the first pipeline is in communication with the second pipeline and the third pipeline, the air in the second cylinder and the third cylinder can return to the air exchange pipeline, thereby realizing drying treatment of the second cylinder and the third cylinder.

[0016] In the specific embodiment of the laundry treatment apparatus, the first return air switching structure is arranged at the rear of the first cylinder.

[0017] In the technical scheme, the first return air switching structure is arranged at the rear of the first cylinder, the space at the rear of the first cylinder is fully utilized, the volume of the laundry treatment apparatus is prevented from increasing, and the arrangement of the first return air switching structure is facilitated.

[0018] In the specific embodiment of the laundry treatment apparatus, the first return air switching structure includes a spherical valve body, the spherical valve body is provided with a first valve port, a second valve port and a third valve port in communication with each other, and the spherical valve body is arranged to be rotatable to control the opening and closing of the first valve port, the second valve port and the third valve port and the first pipeline, the second pipeline and the third pipeline.

[0019] In the technical scheme, the opening and closing of the first pipeline, the second pipeline and the third pipeline are controlled by controlling the opening and closing of the first valve port, the second valve port and the third valve port and the first pipeline, the second pipeline and the third pipeline.

[0020] In the specific embodiment of the laundry treatment apparatus, the spherical valve body is further provided with a plugging part, the plugging part is not in communication with the first valve port, the second valve port and the third valve port; when the spherical valve body is rotated to the first valve port in communication with the first pipeline, the second valve port is in communication with the second pipeline, and the third valve port is in communication with the third pipeline; when the spherical valve body is rotated to the third valve port in communication with the first pipeline, the second valve port is in communication with the third pipeline, and the plugging part is connected with the second pipeline; and when the spherical valve body is rotated to the second valve port in communication with the first pipeline, the first valve port is in communication with the second pipeline, and the plugging part is connected with the third pipeline.

[0021] In the technical scheme, when the spherical valve body rotates to the first valve port being communicated with the first pipeline, the second valve port being communicated with the second pipeline and the third valve port being communicated with the third pipeline, the first pipeline is communicated with the second pipeline and the third pipeline, and drying treatment of the second cylinder and the third cylinder is realized; when the spherical valve body rotates to the third valve port being communicated with the first pipeline, the second valve port being communicated with the third pipeline and the blocking part being connected with the second pipeline, the first pipeline is communicated with the third pipeline, and the first pipeline is disconnected with the second pipeline, and drying treatment of only the third cylinder is realized; when the spherical valve body rotates to the second valve port being communicated with the first pipeline, the first valve port being communicated with the second pipeline and the blocking part being connected with the third pipeline, the first pipeline is communicated with the second pipeline, and the first pipeline is disconnected with the third pipeline, and drying treatment of only the second cylinder is realized.

[0022] In the specific embodiment of the laundry treatment device, the first valve port, the second valve port and the third valve port are arranged on a first cross section of the spherical valve body, the first cross section is perpendicular to the rotation axis of the spherical valve body, the first valve port and the second valve port are arranged at two ends of a first diameter of the first cross section, and the third valve port is arranged on a second diameter of the first cross section, the second diameter being perpendicular to the first diameter.

[0023] In the technical scheme, the first valve port, the second valve port and the third valve port are arranged on the same cross section, the first valve port and the second valve port are arranged at two ends of the first diameter, and the third valve port is arranged on the second diameter perpendicular to the first diameter, so that the spherical valve body can switch a different communication state every 90 degrees of rotation.

[0024] In the specific embodiment of the laundry treatment device, the first return air switching structure further comprises a sealing box, the spherical valve body is arranged in the sealing box, and the first pipeline, the second pipeline and the third pipeline are all communicated with the sealing box.

[0025] In the technical scheme, the sealing box is used to improve the sealing performance between the first pipeline, the second pipeline and the third pipeline and the first return air switching structure, and air leakage during rotation of the spherical valve body is avoided.

[0026] Compared with the prior art, the laundry treatment device has the following beneficial effects: in the technical scheme, the heat pump system is arranged above the first cylinder at the top, so that the heat pump system can be arranged in a larger size, the wet air can be sufficiently heated and dried, the drying efficiency is improved, the space behind the first cylinder is released, the arrangement of components related to the heat pump system is facilitated, and more space is provided for setting the depth value of the first cylinder, in addition, the heat pump system is arranged at the uppermost position, and the disassembly and maintenance of the heat pump system are facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0027] Preferred embodiments of the present application will be described below with reference to the accompanying drawings, in which:

[0028] Figure 1 is a schematic view of the overall structure of the laundry treating apparatus of the present application;

[0029] Figure 2 is a schematic view of the structure of another angle of the laundry treating apparatus of the present application;

[0030] Figure 3 is a schematic view of the structure of the first return air switching structure of the present application;

[0031] Figure 4 is a schematic view of one use state of the first return air switching structure of the present application;

[0032] Figure 5 is a schematic view of another use state of the first return air switching structure of the present application.

[0033] Reference Signs:

[0034] 1 - drum assembly, 2 - drying assembly, 11 - first drum, 12 - second drum, 13 - third drum, 14 - fourth drum, 21 - air supply line, 22 - air supply line, 23 - return air line, 24 - first return air switching structure, 231 - first line, 232 - second line, 233 - third line, 241 - spherical valve body, 242 - sealing box, 2411 - first valve port, 2412 - second valve port, 2413 - third valve port, 2414 - blocking part. DETAILED DESCRIPTION

[0035] Some embodiments of the present application will be described below with reference to the accompanying drawings. It will be understood by those skilled in the art that these embodiments are merely for the purpose of explaining the technical principles of the present application, and are not intended to limit the scope of protection of the present application. Those skilled in the art can make adjustments as needed to adapt to specific application occasions.

[0036] It should be noted that in the description of the present application, the terms "center", "upper", "lower", "left", "right", "front", "back", "top", "bottom", "vertical", "horizontal", "inner", "outer", and other terms indicating direction or positional relationship are based on the direction or positional relationship shown in the drawings, which is merely for the purpose of description, and is not intended to indicate or imply that the related devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the ordinal numbers "first", "second", etc. are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specified.

[0037] Further, it needs to be explained that, in the description of the present application, unless explicitly defined and limited, the terms "mounting", "connecting", "connected" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection; it can be direct connection, or indirect connection through intermediate medium, or internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0038] Based on the background technology, the arrangement of the heat pump system of the double-cylinder and multi-cylinder washing machine in the prior art is difficult and affects the drying efficiency. The heat pump system is arranged above the first cylinder at the top, so that the heat pump system can be correspondingly set to a larger volume, which can fully heat and dry the wet air, improve the drying efficiency, and release the space behind the first cylinder, facilitate the arrangement of the components related to the heat pump system, and provide more space for the depth value setting of the first cylinder. In addition, the heat pump system is arranged at the top, which facilitates the disassembly and maintenance of the heat pump system.

[0039] Firstly, refer to Figure 1 and Figure 2 , Figure 1 is a schematic view of the overall structure of the clothes processing equipment of the present application, Figure 2 is a schematic view of the structure of the clothes processing equipment of the present application from another angle. As Figure 1 and Figure 2 shown, the clothes processing equipment of the present application comprises a cylinder assembly 1 and a drying assembly 2, the cylinder assembly 1 comprises a first cylinder 11, a second cylinder 12, a third cylinder 13 and a fourth cylinder 14, the first cylinder 11 and the fourth cylinder 14 are arranged transversely, the second cylinder 12 is arranged directly below the middle of the first cylinder 11 and the fourth cylinder 14, and the third cylinder 13 is arranged below the second cylinder 12, the volume of each cylinder satisfies the condition that the first cylinder 11 = the fourth cylinder 14 < the second cylinder 12 ≤ the third cylinder 13; the drying assembly 2 is used to provide hot air for the cylinder assembly 1.

[0040] The drying assembly 2 comprises a heat pump system, an air exchange pipeline 21, an air supply pipeline 22, an air return pipeline 23, and a first air return switching structure 24. The heat pump system is used to heat the air in the air exchange pipeline 21. The heat pump system and the air exchange pipeline 21 are arranged above the first drum 11 and the fourth drum 14. The air supply pipeline 22 is in communication with the air exchange pipeline 21, the second drum 12, and the third drum 13, respectively, and is used to guide the air in the air exchange pipeline 21 into the second drum 12 and the third drum 13. The air return pipeline 23 comprises a first pipeline 231, a second pipeline 232, and a third pipeline 233. The first pipeline 231 is in communication with the air exchange pipeline 21. The second pipeline 232 is in communication with the second drum 12. The third pipeline 233 is in communication with the third drum 13. The air return pipeline 23 is arranged behind the first drum 11, fully utilizes the space behind the first drum 11, avoids increasing the size of the clothes treatment device, and facilitates the arrangement of the air return pipeline 23. After the air in the air exchange pipeline 21 is heated by the heat pump system, the air enters the second drum 12 and the third drum 13 through the air supply pipeline 22. The humid air in the second drum 12 and the third drum 13 returns to the air exchange pipeline 21 through the air return pipeline 23 for heating and drying, thereby realizing the drying of the clothes in the drum assembly 1. The first air return switching structure 24 is connected with the first pipeline 231, the second pipeline 232, and the third pipeline 233, respectively. The first air return switching structure 24 is used to control the on-off of the first pipeline 231 and the second pipeline 232 and / or the third pipeline 233. When the first pipeline 231 is in communication with the second pipeline 232 and the first pipeline 231 is disconnected with the third pipeline 233, only the air in the second drum 12 can return to the air exchange pipeline 21, thereby realizing the drying of only the second drum 12. When the first pipeline 231 is in communication with the third pipeline 233 and the first pipeline 231 is disconnected with the second pipeline 232, only the air in the third drum 13 can return to the air exchange pipeline 21, thereby realizing the drying of only the third drum 13. When the first pipeline 231 is in communication with the second pipeline 232 and the third pipeline 233, the air in the second drum 12 and the third drum 13 can both return to the air exchange pipeline 21, thereby realizing the drying of the second drum 12 and the third drum 13. The first air return switching structure 24 is arranged behind the first drum 11, fully utilizes the space behind the first drum 11, avoids increasing the size of the clothes treatment device, and facilitates the arrangement of the first air return switching structure 24.

[0041] By arranging the heat pump system above the first drum 11 at the top, the heat pump system can be correspondingly arranged in a larger size, thereby sufficiently heating and drying the humid air, improving the drying efficiency, and releasing the space behind the first drum 11, facilitating the arrangement of the components related to the heat pump system. In addition, the arrangement of the heat pump system at the top facilitates the disassembly and maintenance of the heat pump system.

[0042] It should be noted that clothing handling equipment can include washing machines, washer-dryer combos, dryers, etc., without specific limitations; furthermore, "horizontal" refers to... Figure 1 and Figure 2 The left and right directions shown refer to the left and right directions of the garment processing equipment, while the front and back directions are... Figure 1 and Figure 2 The front-to-back direction shown is also the front-to-back direction of the garment processing equipment.

[0043] Specifically, the heat pump system includes refrigerant piping, and a compressor, evaporator, expansion valve, and condenser sequentially arranged on the refrigerant piping. The filter, evaporator, condenser, and fan are sequentially arranged in the air exchange duct 21 from the return air inlet to the supply air outlet. The evaporator is used to condense water in the humid air, and the condenser is used to heat the air. Since the drying effect is better when the evaporator and condenser are larger, the heat pump system is placed at the top, which provides ample space for the evaporator and condenser and facilitates the disassembly, assembly, and maintenance of the heat pump system. In addition, the filter can be easily removed when it needs to be cleaned.

[0044] Those skilled in the art will understand that, although the above combination Figure 1 and Figure 2 The description indicates that the cylindrical assembly 1 includes a first cylinder 11, a second cylinder 12, a third cylinder 13, and a fourth cylinder 14. However, this is not a limitation; the cylindrical assembly 1 may also include only the first cylinder 11 and the second cylinder 12, with the first cylinder 11 positioned above the second cylinder 12. The depth of the first cylinder 11 may be less than the depth of the second cylinder 12 to provide more space for the installation of related components. The depth of the fourth cylinder 14 may be the same as or different from that of the first cylinder 11. Those skilled in the art can adjust these dimensions as needed, without departing from the principles of the invention, and all such adjustments fall within the scope of protection of the invention.

[0045] Possibly, the air supply duct 22 is located on the right side of the cylinder assembly 1 and is connected to the front of the second cylinder 12 and the third cylinder 13. The return air duct 23 is located to the left rear of the first cylinder 11. The second duct 232 is connected to the rear of the second cylinder 12, and the third duct 233 is connected to the rear of the third cylinder 13. This increases the contact time of hot air in the second cylinder 12 and the third cylinder 13, improves the drying effect, and also facilitates the arrangement of the air supply duct 22 and the return air duct 23.

[0046] See below. Figures 3-5 , Figure 3 This is a schematic diagram of the first return air switching structure of the present invention. Figure 4 This is a schematic diagram of one usage state of the first return air switching structure of the present invention. Figure 5 This is a schematic diagram of another usage state of the first return air switching structure of the present invention. For example... Figures 3-5As shown, the first return air switching structure 24 includes a spherical valve body 241 and a sealing box 242. The spherical valve body 241 is provided with a first valve port 2411, a second valve port 2412, and a third valve port 2413 that are interconnected. The spherical valve body 241 is configured to rotate along a rotation axis. The first valve port 2411, the second valve port 2412, and the third valve port 2413 are located on a first cross-section of the spherical valve body 241, which is perpendicular to the rotation axis of the spherical valve body 241. The first valve port 2411 and the second valve port 2412 are located at both ends of a first diameter of the first cross-section, and the third valve port 2413 is located on a second diameter of the first cross-section, which is perpendicular to the first diameter. The spherical valve body 241 is also provided with a sealing part 241. 4. The sealing part 2414 is not connected to the first valve port 2411, the second valve port 2412, and the third valve port 2413. Through the arrangement of the positions of the first valve port 2411, the second valve port 2412, the third valve port 2413, and the sealing part 2414, the ball valve body 241 can switch to a different connection state every 90° rotation. The ball valve body 241 is located in the sealing box 242. The first pipeline 231, the second pipeline 232, and the third pipeline 233 are all connected to the sealing box 242. The sealing box 242 is used to improve the sealing between the first pipeline 231, the second pipeline 232, and the third pipeline 233 and the first return air switching structure 24, and at the same time avoid air leakage during the rotation of the ball valve.

[0047] like Figure 3 As shown, when the second cylinder 12 and the third cylinder 13 need to be dried, the ball valve body 241 is controlled to rotate so that the first valve port 2411 is connected to the first pipeline 231, the second valve port 2412 is connected to the second pipeline 232, and the third valve port 2413 is connected to the third pipeline 233, thereby connecting the first pipeline 231 with the second pipeline 232 and the third pipeline 233; Figure 5 As shown, when only the second cylinder 12 needs to be dried, the ball valve body 241 is rotated until the second valve port 2412 is connected to the first pipeline 231, the first valve port 2411 is connected to the second pipeline 232, and the sealing part 2414 is connected to the third pipeline 233, so that the first pipeline 231 is connected to the second pipeline 232 and disconnected from the third pipeline 233; as shown Figure 4 As shown, when only the third cylinder 13 needs to be dried, the ball valve body 241 is controlled to rotate until the third valve port 2413 is connected to the first pipeline 231, the second valve port 2412 is connected to the third pipeline 233, and the sealing part 2414 is connected to the second pipeline 232, so that the first pipeline 231 is connected to the third pipeline 233 and the first pipeline 231 is disconnected from the second pipeline 232.

[0048] Possibly, a seal or sealing oil is provided between the spherical valve body 241 and the sealing box 242 to improve the sealing effect. The first return air switching structure 24 also includes a motor, which is connected to a rotating shaft. The motor drives the spherical valve body 241 to rotate through the rotating shaft. The motor is mounted on the outer wall of the sealing box 242.

[0049] Those skilled in the art will understand that, although the above combination Figure 1 and Figure 2 The described supply air duct 22 is connected to the second cylinder 12 and the third cylinder 13 respectively. The return air duct 23 includes a second duct 232 and a third duct 233. The second duct 232 is connected to the second cylinder 12, and the third duct 233 is connected to the third cylinder 13. However, this is not a limitation; the supply air duct 22 can also be connected to the first cylinder 11 and the fourth cylinder 14 respectively, and the return air duct 23 can also include a fourth duct and a fifth duct. The fourth duct is connected to the first cylinder 11, and the fifth duct is connected to the fourth cylinder 14, thereby enabling the return air to the first cylinder. For the drying of cylinders 11 and 14, a second return air switching structure is provided on the second pipeline 232, and the fourth pipeline is connected to the second return air switching structure. The second return air switching structure is used to control the on / off state of the second pipeline 232 and the connection between the second pipeline 232 and the fourth pipeline. A third return air switching structure is provided on the fourth pipeline, and the fifth pipeline is connected to the third return air switching structure. The third return air switching structure is used to control the on / off state of the fourth pipeline and the connection between the fourth pipeline and the fifth pipeline, thereby realizing the control of whether each cylinder is dried. It should be noted that the second and third return air switching structures can be similar to the first return air switching structure 24, or they can be other structures such as three-position three-way valves or four-position three-way valves. The first return air switching structure 24 can also be other structures such as three-position three-way valves or four-position three-way valves, as long as it can realize the control of the on / off state of different pipelines. Those skilled in the art can make adjustments as needed, which do not deviate from the principle of the present invention and are all within the protection scope of the present invention.

[0050] It should be noted that the above embodiments are merely used to illustrate the principles of the present invention and are not intended to limit the scope of protection of the present invention. Without departing from the principles of the present invention, those skilled in the art can adjust the above embodiments so that the present invention can be applied to more specific application scenarios.

[0051] The technical solution of the present invention has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will all fall within the scope of protection of the present invention.

Claims

1. A garment processing device, characterized in that, The garment processing equipment includes: A cylindrical assembly, the cylindrical assembly including a first cylinder and a second cylinder, wherein the first cylinder is disposed above the second cylinder; A drying assembly for providing hot air to the cylinder assembly, the drying assembly including a heat pump system for heating the air, the heat pump system being positioned above the first cylinder.

2. The garment processing equipment according to claim 1, characterized in that, The drying assembly also includes: The heat pump system heats the air in the air exchange duct, and the air exchange duct is located above the first cylinder; An air supply duct, which is used to guide the air in the air exchange duct to the cylinder assembly; A return air duct is used to guide the air from the cylinder assembly into the air exchange duct, and the return air duct is located behind the first cylinder.

3. The garment processing equipment according to claim 2, characterized in that, The cylindrical assembly further includes a third cylinder, which is located below the second cylinder. The volume of the first cylinder is smaller than the volume of the second cylinder, and the volume of the second cylinder is less than or equal to the volume of the third cylinder.

4. The garment processing equipment according to claim 3, characterized in that, The cylindrical assembly further includes a fourth cylinder, which is arranged horizontally with the first cylinder, and the second cylinder is located directly below the middle of the first cylinder and the fourth cylinder. The volume of the fourth cylinder is equal to the volume of the first cylinder.

5. The garment processing equipment according to claim 3, characterized in that, The return air duct includes a first duct, a second duct, and a third duct. The first duct is connected to the air exchange duct, the second duct is connected to the second cylinder, and the third duct is connected to the third cylinder. The drying assembly further includes a first return air switching structure, wherein the first pipeline, the second pipeline, and the third pipeline are respectively connected to the first return air switching structure, and the first return air switching structure is used to control the on / off state of the first pipeline and the second pipeline and / or the third pipeline.

6. The garment processing equipment according to claim 5, characterized in that, The first return air switching structure is located behind the first cylinder.

7. The garment processing equipment according to claim 5, characterized in that, The first return air switching structure includes a spherical valve body, on which a first valve port, a second valve port, and a third valve port are provided that are interconnected. The spherical valve body is configured to be rotatable to control the connection and disconnection between the first valve port, the second valve port, and the third valve port and the first pipeline, the second pipeline, and the third pipeline.

8. The garment processing equipment according to claim 7, characterized in that, The spherical valve body is also provided with a blocking part, which is not connected to the first valve port, the second valve port and the third valve port; When the spherical valve body rotates to the point where the first valve port is connected to the first pipeline, the second valve port is connected to the second pipeline, and the third valve port is connected to the third pipeline; When the spherical valve body rotates to the point where the third valve port is connected to the first pipeline, the second valve port is connected to the third pipeline, and the sealing part is connected to the second pipeline; When the spherical valve body rotates to the point where the second valve port is connected to the first pipeline, the first valve port is connected to the second pipeline, and the sealing part is connected to the third pipeline.

9. The garment processing equipment according to claim 8, characterized in that, The first valve port, the second valve port, and the third valve port are disposed on the first cross section of the spherical valve body. The first cross section is perpendicular to the rotation axis of the spherical valve body. The first valve port and the second valve port are disposed at both ends of the first diameter of the first cross section. The third valve port is disposed on the second diameter of the first cross section. The second diameter is perpendicular to the first diameter.

10. The garment processing equipment according to claim 7, characterized in that, The first return air switching structure also includes a sealed box, the spherical valve body is disposed inside the sealed box, and the first pipeline, the second pipeline and the third pipeline are all connected to the sealed box.