Double pump assembly and laundry treatment apparatus including the double pump assembly

Abstract

The present invention relates to the technical field of clothing treatment. Specifically, it provides a double pump assembly and a clothing treatment apparatus comprising the double pump assembly. In the prior art, the circulation pump and the drainage pump in a drum washing machine need to be installed independently of each other, which requires a lot of space, has low production efficiency, high noise, and high cost. The purpose is to solve these problems. Therefore, the double pump assembly of the present invention includes a pump body, a first pump head component installed on the pump body, and a second pump head component. A water inlet, a first drainage port, and a second drainage port are installed on the pump body. The water inlet communicates with a first water supply chamber or the second water supply chamber in the pump body. The first pump head component is installed so that water entering the first water supply chamber through the water inlet can be discharged through the first drainage port. The second pump head component is installed so that water entering the second water supply chamber through the water inlet can be discharged through the second drainage port. By integrating two pumps, the present invention can reduce the required installation space, reduce costs, and reduce the noise generated during operation.

Description

Technical Field

[0001] The present invention relates to the technical field of clothing treatment, and specifically provides a double pump assembly and a clothing treatment apparatus including the double pump assembly.

Background Art

[0002] As people's living standards increase, the application of washing machines has become increasingly widespread. Taking a drum washing machine as an example, a drum washing machine generally includes a housing, a drum component located within the housing, and a waterway system. The drum component generally includes an inner drum and an outer drum that communicate with each other, and the inner drum can rotate relative to the outer drum. The waterway system includes a water supply hose, and tap water enters the inner drum through the water supply hose. During washing, the clothing to be washed in the inner drum is repeatedly lifted and dropped, and the action of detergent and washing water is applied to it to achieve the purpose of cleaning the clothing. The waterway system further includes a drain hose and a drain pump installed on the drain hose. After the rinsing stage and the dehydration stage, the washing water in the outer drum can be discharged from the drain hose by the action of the drain pump.

[0003] In order to meet people's increasingly high requirements for the functionality, environmental protection, and cleaning rate of washing machines, the waterway system further includes a circulation hose and a circulation pump installed on the circulation hose. One end of the circulation hose is connected to the drain port of the outer drum, and the other end is connected to the circulation water inlet of the outer drum. By the action of the circulation pump, the water at the bottom of the outer drum is flowed to the upper part of the outer drum through the circulation hose, thereby realizing the circulating flow of the washing water and enhancing the cleaning rate of the washing machine.

[0004] However, adding one more circulation pump and installing corresponding pipes and valves will inevitably increase the cost of the drum washing machine. In addition, the independent installation of the circulation pump and the drainage pump needs to occupy a lot of space inside the drum washing machine. During assembly, the two water pumps need to be installed separately, which increases the production process and leads to a decrease in production efficiency. During washing, the noise generated by the two pumps is relatively large.

[0005] Accordingly, in the technical field, a new technical solution is needed to solve the above problems.

Summary of the Invention

Problems to be Solved by the Invention

[0006] The present invention solves the above technical problems, that is, in the prior art, the circulation pump and the drainage pump of the drum washing machine are installed independently of each other, which needs to occupy a lot of space, has low production efficiency, high noise, high cost and other problems.

Means for Solving the Problems

[0007] According to a first aspect, the present invention provides a double pump assembly, the double pump assembly including a pump body, within which a first water supply chamber and a second water supply chamber communicating with each other are installed, a water inlet being installed on the pump body, the water inlet communicating with the first water supply chamber or the second water supply chamber, the pump body further having a first drain outlet and a second drain outlet, the double pump assembly further including a first pump head component and a second pump head component installed on the pump body, the first pump head component being installed so as to be able to discharge water entering the first water supply chamber through the water inlet via the first drain outlet, and the second pump head component being installed so as to be able to discharge water entering the second water supply chamber through the water inlet via the second drain outlet.

[0008] In a preferred technical solution of the above double pump assembly, an intermediate chamber is further installed within the pump body, the intermediate chamber being installed between the first water supply chamber and the second water supply chamber and communicating the first water supply chamber and the second water supply chamber.

[0009] In a preferred technical solution of the above double pump assembly, a first drain chamber and a second drain chamber are further installed within the pump body, the first drain chamber communicating with the first water supply chamber, the second drain chamber communicating with the second water supply chamber, the first drain outlet communicating with the first drain chamber, and the second drain outlet communicating with the second drain chamber.

[0010] In a preferred technical solution of the double pump assembly, the double pump assembly further includes a first filtering component removably installed on the pump body. A first through hole communicates between the first water supply chamber and the first drainage chamber. The first filtering component is installed so as to be able to filter water entering the first drainage chamber via the first through hole.

[0011] In a preferred technical solution of the double pump assembly, a first mounting port communicating with the first water supply chamber is installed on the pump body. The first filtering component includes a first screw cap fitted and connected to the first mounting port, and a first filtering member having a first end connected to the first screw cap and a second end connected to the first through hole.

[0012] In a preferred technical solution of the double pump assembly, the double pump assembly further includes a second filtering component removably installed on the pump body. A second through hole communicates between the second water supply chamber and the second drainage chamber. The second filtering component is installed so as to be able to filter water entering the second drainage chamber via the second through hole.

[0013] In a preferred technical solution of the double pump assembly, a second mounting port communicating with the second water supply chamber is installed on the pump body. The second filtering component includes a second screw cap fitted and connected to the second mounting port, and a second filtering member having a first end connected to the second screw cap and a second end connected to the second through hole.

[0014] In a preferred technical solution of the double pump assembly, the first filtering member includes a first base, a first filtering rod and a first filtering barrel installed on the first base. The first base is connected to the first screw cap. An end of the first filtering rod away from the first base is inserted into the first filtering barrel through a first end of the first filtering barrel. A second end of the first filtering barrel is connected to the first through hole. The second filtering member includes a second base, a second filtering rod installed on the second base, and a second filtering barrel. The second base is connected to the second screw cap. An end of the second filtering rod away from the second base is inserted into the second filtering barrel through a first end of the second filtering barrel. A second end of the second filtering barrel is connected to the second through hole. Here, the height of the first filtering barrel is not more than that of the second filtering barrel, and a gap between the second filtering rod and an inner wall of the first end of the second filtering barrel is not more than a gap between the first filtering rod and the inside of the first end of the first filtering barrel.

[0015] In a preferred technical solution of the double pump assembly, the double pump assembly further includes a mounting component connected to a target component. The pump body is installed on the target component through the mounting component, and / or a drain communicating with the first water supply chamber or the second water supply chamber is further installed in the pump body. Beneficial effects

[0016] In the technical solution of the present invention, the double pump assembly includes a pump body, a first pump head component installed on the pump body, and a second pump head component. Inside the pump body, a first water supply chamber and a second water supply chamber communicating with each other are installed. On the pump body, a water inlet, a first drain outlet, and a second drain outlet are installed. The water inlet communicates with the first water supply chamber or the second water supply chamber. In this way, external water enters the first water supply chamber or the second water supply chamber through the water inlet, and then can enter from the first water supply chamber into the second water supply chamber, or enter from the second water supply chamber into the first water supply chamber. The first pump head component is installed so as to be able to discharge the water entering the first water supply chamber through the water inlet through the first drain outlet. The second pump head component is installed so as to be able to discharge the water entering the second water supply chamber through the water inlet through the second drain outlet. The present invention integrates two pumps by installing one water inlet, two drain outlets, and two pump head components, and can realize two different and non-interfering flow paths with only one pump body. Compared with installing two pumps separately, the installation space required for the double pump assembly of the present invention is relatively small. Moreover, since one water inlet and one pump body are reduced, the number of related components is also reduced, making the installation easy and the cost reduced. In addition, since each pump head component corresponds to one flow path, the operating efficiency of the pump head component can be better adjusted according to the conditions of the flow path, and the noise generated during operation is also small.

[0017] Furthermore, an intermediate chamber is further installed inside the pump body. The intermediate chamber is installed between the first water supply chamber and the second water supply chamber to communicate the two. In this way, no matter where the water inlet is installed on the pump body and which water supply chamber it communicates with, and no matter how much the water volume is, after the water enters the pump body from the water inlet, it can flow into the first water supply chamber or the second water supply chamber smoothly as needed, ensuring that the double pump assembly can operate stably no matter which pump head component is turned on.

[0018] Furthermore, a first drainage chamber and a second drainage chamber are further installed inside the pump body. The first drainage chamber communicates with the first water supply chamber, the second drainage chamber communicates with the second water supply chamber, the first drainage port communicates with the first drainage chamber, and the second drainage port communicates with the second drainage chamber. In this way, due to the action of the first pump head component or the second pump head component, external water enters the first water supply chamber or the second water supply chamber from the water inlet, then enters the first drainage chamber or the second drainage chamber from the first water supply chamber or the second water supply chamber, and is then discharged from the first drainage port or the second drainage port. In this way, by ensuring the continuity of drainage from the first drainage port and the second drainage port, the operating continuity of the double pump assembly can be ensured.

[0019] Furthermore, the double pump assembly further includes a first filtration component and a second filtration component. Both the first filtration component and the second filtration component are removably installed on the pump body. There is a first through hole communicating between the first water supply chamber and the first drainage chamber, and a second through hole communicating between the second water supply chamber and the second drainage chamber. The first filtration component is installed so as to be able to filter the water entering the first drainage chamber via the first through hole, and the second filtration component is installed so as to be able to filter the water entering the second drainage chamber via the second through hole. In this way, during the operation of the double pump assembly, the water coming out of the first drainage port first enters the first filtration component for treatment, and the water coming out of the second drainage port first undergoes filtration treatment by the second filtration component. In this way, the cleanliness of the water coming out via the first drainage port and the second drainage port can be ensured, and the water quality requirements of each water channel can be satisfied. After the first filtration component and the second filtration component become dirty, they can be removed, sorted out, and replaced, thereby ensuring a better filtration effect. Moreover, filtration components are installed in the two water channels respectively. In this way, the specific types of the first filtration component and the second filtration component can be selected according to specific needs, and the water quality requirements of different water channels can be better satisfied.

[0020] Furthermore, the pump body is provided with a first mounting port communicating with the first water supply chamber and a second mounting port communicating with the second water supply chamber. The first filtering component includes a first screw cap fitted and connected to the first mounting port, and a first filtering member having a first end connected to the first screw cap and a second end connected to the first through hole. The second filtering component includes a second screw cap fitted and connected to the second mounting port, and a second filtering member having a first end connected to the second screw cap and a second end connected to the second through hole. In this way, the first filtering member and the second filtering member can be installed in the first through hole and the second through hole respectively. The water in the first water supply chamber enters the first drainage chamber after being filtered by the first filtering member, and the water in the second water supply chamber enters the second drainage chamber after being filtered by the second filtering member, thereby ensuring the cleanliness of the water entering the first drainage chamber and the second drainage chamber and meeting the water quality requirements of each waterway.

[0021] Furthermore, the first filtering member includes a first base, a first filtering rod installed on the first base, and a first filtering barrel. The first base is connected to the first screw cap. The end of the first filtering rod away from the first base is inserted into the first filtering barrel through the first end of the first filtering barrel, and the second end of the first filtering barrel is connected to the first through hole. The second filtering member includes a second base, a second filtering rod installed on the second base, and a second filtering barrel. The second base is connected to the second screw cap. The end of the second filtering rod away from the second base is inserted into the second filtering barrel through the first end of the second filtering barrel, and the second end of the second filtering barrel is connected to the second through hole. In this way, when the water flow passes through the first filtering member and the second filtering member, first, cotton, fibers, etc. in the water are caught by the first filtering rod and the second filtering rod, and then through the gaps between the first filtering rod and the inner wall of the first end of the first filtering barrel, and between the second filtering rod and the inner wall of the first end of the second filtering barrel, it flows into the first drainage chamber and the second drainage chamber. Since both the gaps between the first filtering rod and the inner wall of the first end of the first filtering barrel, and between the second filtering rod and the inner wall of the first end of the second filtering barrel are small, the impurities in the water can be further filtered in this way to obtain a good filtering effect.

[0022] The height of the first filtering barrel is below that of the second filtering barrel, and the gap between the second filtering rod and the inner wall of the first end of the second filtering barrel is below the gap between the first filtering rod and the inner wall of the first end of the first filtering barrel. In this way, the water entering the second water supply chamber flows out through the second filtering barrel after the flow rate is reduced. And because the gap between the second filtering rod and the inner wall of the first end of the second filtering barrel is smaller, impurities such as gravel and buttons in the water can be filtered better. In this way, the second filtering component can obtain a filtering effect better than that of the first filtering component, that is, the purity of the water coming out of the second drain outlet is higher. When using the double - pump assembly of the present invention, a waterway with a higher requirement for water cleanliness can be connected to the second drain outlet, thereby better meeting the filtering requirements.

[0023] According to a second aspect of the present invention, there is further provided a clothing treatment apparatus including the double pump assembly according to any one of the above items.

[0024] It should be noted that the clothing treatment apparatus has all the technical effects of the double pump assembly and will not be described further herein.

Brief Description of the Drawings

[0025] Hereinafter, taking a drum washing machine as an example, the double pump assembly of the present invention and the clothing treatment apparatus including the double pump assembly will be described with reference to the drawings. In the drawings,

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Embodiments for Carrying Out the Invention

[0026] Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. Those skilled in the art will understand that these embodiments are only for interpreting the technical principles of the present invention and not for the purpose of limiting the protection scope of the present invention. In this embodiment, a drum washing machine is taken as an example for discussion, but it is obvious that it can also be applied to other types of clothing treatment devices such as a vortex washing machine, a washing and drying machine, or other cases where it is necessary to use the double pump assembly of the present application.

[0027] It should be noted that in the description of the present invention, terms indicating directions or positional relationships such as "upper", "lower", "left", and "right" are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description. Since the device or element is not shown or implied to necessarily have a specific orientation and be configured and operated in a specific orientation, it cannot be understood as a limitation to the present invention. In addition, the terms "first", "second", "third", "fourth", "fifth", "sixth", "seventh", and "eighth" are only for description and cannot be understood as indicating or implying relative importance.

[0028] In order to meet people's increasingly high requirements for the functionality, environmental protection, and washing rate of washing machines, a circulation pump is further installed in the drum washing machine. By means of this circulation pump, the water at the bottom of the outer drum is circulated to the upper part of the outer drum to realize the circulating flow of the washing water and improve the washing rate of the washing machine. However, in this way, one circulation pump and one drainage pump need to be installed in the drum washing machine respectively, which need to occupy a lot of space in the drum washing machine, are very inconvenient to install, increase the cost, and the noise generated during operation is relatively large. Therefore, the double pump assembly of the present invention includes one water inlet, two drainage outlets, and two pump head components, integrates two pumps, and realizes two different and non-interfering flow paths by one pump body. Compared with installing two pumps separately, the installation space required for the double pump assembly of the present invention is small, the number of related parts is small, it is easy to install, the cost is low, and the noise generated during operation is relatively small.

[0029] Hereinafter, possible embodiments of the double pump assembly of the present invention and a drum washing machine including the double pump assembly will be described with reference to FIGS. 1 to 3.

[0030] As shown in FIGS. 1 and 2 and according to the orientation shown in FIG. 2, the double pump assembly includes a pump body 10, a first pump head component 20, and a second pump head component 30. The first pump head component 20 and the second pump head component 30 are installed on the pump body 10 by means such as engagement connection or screwing connection. Inside the pump body 10, a first water supply chamber 102 and a second water supply chamber 103 that communicate with each other are installed. Here, the first water supply chamber 102 is located on the left side, and the second water supply chamber 103 is located on the right side. The pump body 10 is provided with a water inlet 101, a first drain port 104, and a second drain port 105. The water inlet 101 communicates with the first water supply chamber 102. In this way, external water can enter the first water supply chamber 102 via the water inlet 101 and then enter the second water supply chamber 103 from the first water supply chamber 102. The first pump head component 20 includes a first drive mechanism 201 and a first impeller (not shown) connected to the first drive mechanism 201. When the first pump head component 20 operates, the first drive mechanism 201 operates to rotate the first impeller. Due to the rotation of the first impeller, external water is sucked into the first water supply chamber 102 through the water inlet 101 and then discharged from the first drain port 104. The second pump head component 30 includes a second drive mechanism 301 and a second impeller (not shown) connected to the second drive mechanism 301. When the second pump head component 30 operates, the second drive mechanism 301 operates to rotate the second impeller. Due to the rotation of the second impeller, external water is sucked into the first water supply chamber 102 through the water inlet 101, further sucked into the second water supply chamber 103, and then discharged from the second drain port 105. In this way, by installing one water inlet 101, two drain ports, and two pump head components on the pump body 10, two pumps are integrated, and two different and non-interfering flow paths can be realized with only one pump body 10.Compared with installing two pumps separately, the installation space required for the double pump assembly of the present invention is relatively small, and since one water inlet 101 and one pump body 10 are reduced, the number of related parts is reduced, making it easy to install and reducing costs. In addition, each pump head component corresponds to one flow path. In this way, the operating efficiency of the pump head component can be better adjusted according to the condition of the flow path, and the noise generated during operation is relatively small. In the present invention, the upper edge of the water inlet 101 of the double pump assembly is substantially flush with the upper side wall of the first water supply chamber 102, and its radial dimension is slightly smaller than the height of the first water supply chamber 102 and the second water supply chamber 103. In this way, when the double pump assembly is operating, the water that enters the pump body 10 via the water inlet can fill the first water supply chamber 102 and the second water supply chamber 103. In this way, it is possible to avoid causing an air trapping phenomenon due to the presence of air in the first water supply chamber 102 and the second water supply chamber 103, thereby better controlling the flow rate of each flow path and reducing the noise generated during operation. Moreover, since the water can fill the first water supply chamber 102 and the second water supply chamber 103, in this way, smooth starting can be ensured when the double pump assembly is started for the first time, and drainage can be carried out smoothly from the first drain port 104 and the second drain port 105, and the presence of air in the first water supply chamber 102 and the second water supply chamber 103 will not cause the drainage to become unsmooth.

[0031] It should be noted that the water inlet 101 may communicate with the second water supply chamber 103. In this case, when the first pump head component 20 is operating, external water first enters the second water supply chamber 103 through the water inlet 101, then enters the first water supply chamber 102 through the second water supply chamber 103, and is then discharged from the first drain port 104.

[0032] For the sake of convenience of description, hereinafter, taking the example that the water inlet 101 communicates with the first water supply chamber 102, the double pump assembly of the present invention will be discussed with reference to FIGS. 1 to 3 as well.

[0033] As shown in FIGS. 1 to 3 and according to the orientation shown in FIG. 2, an intermediate chamber 106 is further installed in the pump body 10. The intermediate chamber 106 is located between the first water supply chamber 102 and the second water supply chamber 103. One end thereof communicates with the first water supply chamber 102, and the other end communicates with the second water supply chamber 103. In this way, the intermediate chamber 106 communicates the first water supply chamber 102 and the second water supply chamber 103 with each other. The intermediate chamber 106 has a generally long cylindrical structure, and its radial dimension is substantially the same as the radial dimension of the water inlet 101. In this way, when the second pump head component 30 operates, external water is sucked into the first water supply chamber 102 through the water inlet 101, then enters the second water supply chamber 103 through the intermediate chamber 106, and is then discharged from the second drain port 105. In this case, the radial dimension of the intermediate chamber 106 is relatively large, and the upper and lower sides of its inner wall are substantially flush with the upper and lower sides of the inner walls of the first water supply chamber 102 and the second water supply chamber 103. Therefore, the water entering the pump body from the water inlet 101 can fill the first water supply chamber 102 and the second water supply chamber 103. In this way, the desired water flow rate can be achieved without increasing the operating efficiency of the second pump head component 30. Also, the phenomenon of air trapping caused by the presence of air in the first water supply chamber 102 and the second water supply chamber 103 can be avoided. Since the radial dimension of the intermediate chamber 106 is relatively small, the flow rate of water in the intermediate chamber 106 is not too fast to cause noise. Thereby, the flow rate of each flow path can be better controlled, the noise generated during operation can be reduced, and the stable and low-noise operation of the double-pump assembly can be ensured. Obviously, the radial dimension of the intermediate chamber 106 may be larger than the radial dimension of the water inlet 101. Of course, the radial dimension of the intermediate chamber 106 may also be smaller than the radial dimension of the water inlet 101. However, in this case, there may be a problem that the noise generated during operation is large due to the relatively small radial dimension of the intermediate chamber 106.

[0034] It should be noted that in the pump body 10, the intermediate chamber 106 may not be installed, and the communication between the first water supply chamber 102 and the second water supply chamber 103 may be realized by a single communication hose. However, it is preferable that the diameter of the communication hose is close to the diameter of the water inlet 101. Otherwise, when water flows through the communication hose, noise is likely to be generated, reducing the user experience.

[0035] As shown in FIGS. 1 to 3 and according to the orientation shown in FIG. 2, in the pump body 10, a first drainage chamber 107 and a second drainage chamber 108 are further installed. The first drainage chamber 107 is located above the first water supply chamber 102 and communicates with the first water supply chamber 102. The second drainage chamber 108 is located above the second water supply chamber 103 and communicates with the second water supply chamber 103. The first drain port 104 communicates with the first drainage chamber 107, and the second drain port 105 communicates with the second drainage chamber 108. The first impeller protrudes into the first drainage chamber 107, and the second impeller protrudes into the second drainage chamber 108. By the action of the first pump head component 20 or the second pump head component 30, external water enters the first water supply chamber 102 or the second water supply chamber 103, then enters the first drainage chamber 107 or the second drainage chamber 108 from the first water supply chamber 102 or the second water supply chamber 103, and is then discharged from the first drain port 104 or the second drain port 105. In this way, when the first pump head component 20 or the second pump head component 30 is operating, water is always held in the first drainage chamber 107 and the second drainage chamber 108. In this way, by ensuring the continuity of drainage from the first drain port 104 and the second drain port 105, the operating continuity of the double pump assembly can be ensured.

[0036] It should be noted that only the first drainage chamber 107 or the second drainage chamber 108 may be installed in the pump body 10. It is obvious that the first drainage chamber 107 and the second drainage chamber 108 do not have to be installed in the pump body 10. In this case, only the first water supply chamber 102 and the second water supply chamber 103 are in the pump body 10. The first drain port 104 communicates with the first water supply chamber 102, the second drain port 105 communicates with the second water supply chamber 103, the first impeller of the first pump head component 20 extends into the first water supply chamber 102, and the second impeller of the second pump head component 30 extends into the second water supply chamber 103. When the first pump head component 20 operates, external water can be inhaled into the first water supply chamber 102 and then discharged from the first drain port 104. When the second pump head component 30 operates, external water can be inhaled into the second water supply chamber 103 and then discharged from the second drain port 105. However, since the first drainage chamber 107 and the second drainage chamber 108 are not installed, problems may occur during operation, such as the drainage from the first drain port 104 and the second drain port 105 becoming discontinuous, or the noise increasing due to the bubbles contained in the water discharged from the first drain port 104 and the second drain port 105.

[0037] As shown in FIGS. 1 to 3, the double pump assembly further includes a first filtration component 40 and a second filtration component 50, and both the first filtration component 40 and the second filtration component 50 are removably installed on the pump body 10. A first through hole 111 is installed between the first water supply chamber 102 and the first drainage chamber 107, and the two are communicated by the first through hole 111. A second through hole 112 is installed between the second water supply chamber 103 and the second drainage chamber 108, and the two are communicated by the second through hole 112. The first filtration component 40 is installed so as to be able to filter the water that has entered the first drainage chamber 107 via the first through hole 111, and the second filtration component 50 is installed so as to be able to filter the water that has entered the second drainage chamber 108 via the second through hole 112. In this way, during the operation of the double pump assembly, the water coming out of the first drainage port 104 first enters the first filtration component 40 for treatment, and the water coming out of the second drainage port 105 first undergoes filtration treatment by the second filtration component 50. In this way, the cleanliness of the water coming out via the first drainage port 104 and the second drainage port 105 can be ensured, and the water quality requirements of each water channel can be met. Since the first filtration component 40 and the second filtration component 50 are removably installed on the pump body 10, after the first filtration component 40 and the second filtration component 50 become dirty, they can be easily removed for cleaning and replacement, thereby ensuring a better filtration effect. Moreover, filtration components are installed in the two water channels respectively. In this way, the specific types of the first filtration component 40 and the second filtration component 50 can be selected according to specific needs, and the water quality requirements of different water channels can be better met.

[0038] It should be noted that the double pump assembly may further include only the first filtration component 40 or the second filtration component 50. Taking the case where the double pump assembly includes only the first filtration component 40 as an example, in this case, the water discharged through the second drain port 105 does not undergo filtration, and there is a problem that the water in the waterway cannot meet the water quality requirements. Obviously, the double pump assembly may not include the first filtration component 40 and the second filtration component 50. In this case, the water entering the pump body 10 is discharged through the first drain port 104 and the second drain port 105 without undergoing filtration, and there is a problem that the water quality requirements cannot be met.

[0039] As shown in FIGS. 1 to 3, the pump body 10 is provided with a first mounting port 109 and a second mounting port 110. The first filtration component 40 includes a first screw cover 401 and a first filtration member 402. A first arc segment 4011 is installed on the outer edge of the first screw cover 401, and a second arc segment 1091 that fits with the first arc segment 4011 is installed on the inner wall of the first mounting port 109. By fitting the first arc segment 4011 and the second arc segment 1091, the fitting connection between the first screw cover 401 and the first mounting port 109 is realized. The first end of the first filtration member 402 is connected to the first screw cover 401, and the second end of the first filtration member 402 is connected to the first through hole 111. The second filtration component 50 includes a second screw cover 501 and a second filtration member 502. A third arc segment 5011 is installed on the outer edge of the second screw cover 501, and a fourth arc segment 1101 that fits with the third arc segment 5011 is installed on the inner wall of the second mounting port 110. By fitting the third arc segment 5011 and the fourth arc segment 1101, the fitting connection between the second screw cover 501 and the second mounting port 110 is realized. The first end of the second filtration member 502 is connected to the second screw cover 501, and the second end of the second filtration member 502 is connected to the second through hole 112.

[0040] Thus, during installation, first connect the first filtering member and the second filtering member to the first screw cap 401 and the second screw cap 501 respectively. Then, align the first arc segment 4011 with the portion of the inner wall of the first mounting port 109 other than the second arc segment 1091, and rotate the first screw cap 401 to fit the first arc segment 4011 and the second arc segment 1091 together. Align the third arc segment 5011 with the portion of the inner wall of the second mounting port 110 other than the fourth arc segment 1101, and rotate the second screw cap 501 to fit the third arc segment 5011 and the fourth arc segment 1101 together. In this way, the first screw cap 401 and the second screw cap 501 are attached to be engaged and connected to the first mounting port 109 and the second mounting port 110. In this way, the first filtering member 402 and the second filtering member 502 can be installed in the first through hole 111 and the second through hole 112 respectively. The water in the first water supply chamber 102 enters the first drainage chamber 107 after being filtered by the first filtering member 402, and the water in the second water supply chamber 103 enters the second drainage chamber 108 after being filtered by the second filtering member 502, thereby ensuring the cleanliness of the water entering the first drainage chamber 107 and the second drainage chamber 108 and meeting the water quality requirements of each water channel.

[0041] It should be noted that the first screw cap 401 can achieve a fitting connection with the first mounting port 109 by means such as screwing connection and adhesion, and the second screw cap 501 can also achieve a fitting connection with the second mounting port 110 by means such as screwing connection and adhesion. On the premise of not departing from the principle of this application, those skilled in the art can flexibly select the specific method of the fitting connection between the first screw cap 401 and the first mounting port 109, and between the second screw cap 501 and the second mounting port 110 according to the specific application scenario, as long as the first filtering member 402 and the second filtering member 502 can be installed in the pump body 10 by the first screw cap 401 and the second screw cap 501 to obtain a good filtering effect.

[0042] As shown in FIGS. 1 to 3 and according to the orientation shown in FIG. 2, the first mounting port 109 communicates with the first water supply chamber 102, the second mounting port 110 communicates with the second water supply chamber 103, the first mounting port 109 is located at the lower part of the pump body 10 and faces the first through hole 111, and the second mounting port 110 is located at the lower part of the pump body 10 and faces the second through hole 112. Obviously, the first mounting port 109 and the second mounting port 110 do not necessarily face the first through hole 111 and the second through hole 112.

[0043] The first filtering member 402 includes a first base 4021, a first filtering rod 4022, and a first filtering barrel 4023. The first base 4021 has a frustum-like structure that is convex upward approximately, and a first flange 40211 extends outward at the lower end of the first base 4021, and the first flange 40211 extends outward along the horizontal direction. The first base 4021 has a second flange 40212 installed above the first flange 40211, and the second flange 40212 extends outward along the horizontal direction. Both the first flange 40211 and the second flange 40212 are installed along the circumferential direction of the first base 4021, and a first locking structure is formed by the first flange 40211 and the second flange 40212. The first screw cap 401 includes a first screw cap body 4012, a first hand-held end 4013 extends downward and is installed on the lower side surface of the first screw cap body 4012, and a first arc segment 4011 is installed on the circumferential outer wall of the first screw cap body 4012. A first flap 4014 is installed on the upper side surface of the first screw cap body 4012, the first flap 4014 extends inward along the horizontal direction, the first flap 4014 is installed along the circumferential direction of the first screw cap 401, and a first locking location is formed by the first flap 4014 and the upper side surface of the first screw cap body 4012, and the first locking structure can be locked and installed up to the first locking location. Both the first filtering rod 4022 and the first filtering barrel 4023 are installed along the vertical direction. Here, the diameter of the first filtering rod 4022 gradually decreases from bottom to top, and the diameter of the first filtering barrel 4023 gradually increases from bottom to top. The lower end of the first filtering rod 4022 is connected to the upper side of the first base 4021, and the upper end of the first filtering rod 4022 is inserted into the first filtering barrel 4023 through the first end of the first filtering barrel 4023 (that is, the lower end of the first filtering barrel 4023 in FIG. 2). In this way, the gap between the first filtering rod 4022 and the first filtering barrel 4023 also gradually increases from bottom to top, and it does not affect the normal flow of the water flow.The first filtering member 402 further includes a first connecting member 4024. The first connecting member 4024 has a substantially sheet-like structure. The first end of the first connecting member 4024 (i.e., the lower end of the first connecting member 4024 in FIG. 2) is connected to the first base 4021, and the second end (i.e., the upper end of the first connecting member 4024 in FIG. 2) is connected to the first filtering barrel 4023. In this way, the connection between the first filtering barrel 4023 and the first base 4021 is realized. At the second end of the first filtering barrel 4023 (i.e., the upper end of the first filtering barrel 4023 in FIG. 2), a third flange 40231 and a fourth flange 40232 extend outward. The third flange 40231 and the fourth flange 40232 are distributed along the circumferential direction of the first filtering barrel 4023. The fourth flange 40232 is connected to the second end of the first connecting member 4024, and a first annular boss 40233 extends upward on the upper surface of the third flange 40231. A second annular boss 1111 extends downward on the inner edge of the first through hole 111, and the outer diameter of the second annular boss 1111 is substantially the same as the inner diameter of the first annular boss 40233. When the installation is completed, the first annular boss 40233 is covered outside the second annular boss 1111. When installing the first filtering component 40, first, the first locking structure is locked and installed to the first locking location, so that the first base 4021 is installed to be engaged and connected to the first screw cap 401. Then, the first filtering barrel 4023 and the first filtering rod 4022 are inserted into the first water supply chamber 102, and an upward external force is applied to align and connect the first annular boss 40233 with the second annular boss 1111. Then, an external force is applied to the first hand-held end 4013, and the first screw cap 401 is rotated to install the first screw cap 401 to be engaged and connected to the first mounting port 109. In this way, the first filtering component 40 is installed in the first water supply chamber 102.

[0044] The second filtering member 502 includes a second base 5021, a second filtering rod 5022, and a second filtering barrel 5023. The second base 5021 has a frustum-like structure that is convex upward substantially. A fifth flange 50211 extends outward at the lower end of the second base 5021, and the fifth flange 50211 extends outward along the horizontal direction. The second base 5021 has a sixth flange 50212 installed above the fifth flange 50211, and the sixth flange 50212 extends outward along the horizontal direction. Both the fifth flange 50211 and the sixth flange 50212 are installed along the circumferential direction of the second base 5021, and a third locking structure is formed by the fifth flange 50211 and the sixth flange 50212. The second screw cap 501 includes a second screw cap body 5012. A second hand-held end 5013 extends downward and is installed on the lower side surface of the second screw cap body 5012, and a third arc segment 5011 is installed on the outer wall of the circumferential direction of the second screw cap body 5012. A second flap 5014 is installed on the upper side surface of the second screw cap body 5012. The second flap 5014 extends inward along the horizontal direction, and the second flap 5014 is installed along the circumferential direction of the second screw cap 501. A second locking location is formed by the second flap 5014 and the upper side surface of the second screw cap body 5012, and the third locking structure can be locked and installed up to the second locking location. Both the second filtering rod 5022 and the second filtering barrel 5023 are installed along the vertical direction. Moreover, the diameter of the second filtering rod 5022 gradually becomes smaller from bottom to top, and the diameter of the second filtering barrel 5023 gradually becomes larger from bottom to top. Here, the lower end of the second filtering rod 5022 is connected to the upper side of the second base 5021, and the upper end of the second filtering rod 5022 is inserted into the second filtering barrel 5023 through the first end of the second filtering barrel 5023 (that is, in FIG. 2, the lower end of the second filtering barrel 5023). In this way, the gap between the second filtering rod 5022 and the second filtering barrel 5023 also gradually becomes larger from bottom to top, and it does not affect the normal flow of the water flow.The second filtering member 502 further includes a second connecting member 5024. The second connecting member 5024 has a substantially sheet-like structure. The first end of the second connecting member 5024 (i.e., the lower end of the second connecting member 5024 in FIG. 2) is connected to the second base 5021, and the second end (i.e., the upper end of the second connecting member 5024 in FIG. 2) is connected to the second filtering barrel 5023. In this way, the connection between the second filtering barrel 5023 and the second base 5021 is realized. The seventh flange 50231 and the eighth flange 50232 extend outward from the second end of the second filtering barrel 5023 (i.e., the upper end of the second filtering barrel 5023 in FIG. 2), and the seventh flange 50231 and the eighth flange 50232 are distributed along the circumferential direction of the second filtering barrel 5023. The eighth flange 50232 is connected to the second end of the second connecting member 5024, and the third annular boss 50233 extends upward on the upper surface of the seventh flange 50231. The fourth annular boss 1121 extends downward from the inner edge of the second through hole 112, and the outer diameter of the fourth annular boss 1121 is substantially the same as the inner diameter of the third annular boss 50233. When the installation is completed, the third annular boss 50233 is covered outside the fourth annular boss 1121. When installing the second filtering component 50, first, the third locking structure is locked to the second locking location and installed, so that the second base 5021 is installed to be engaged and connected to the second screw cap 501. Then, the second filtering barrel 5023 and the second filtering rod 5022 are inserted into the second water supply chamber 103, and an upward external force is applied to align and connect the third annular boss 50233 with the fourth annular boss 1121. Then, an external force is applied to the second hand-held end 5013, and the second screw cap 501 is rotated to install the second screw cap 501 to be engaged and connected to the second mounting port 110. In this way, the second filtering component 50 is installed in the second water supply chamber 103.

[0045] Thus, when the water flow passes through the first filtering member 402 and the second filtering member 502, first, cotton, fibers, etc. in the water are caught by the first filtering rod 4022 and the second filtering rod 5022, and then, via the gaps between the first filtering rod 4022 and the inner wall of the first end of the first filtering barrel 4023, and between the second filtering rod 5022 and the inner wall of the first end of the second filtering barrel 5023, it flows into the first drainage chamber 107 and the second drainage chamber 108. Since both the gaps between the first filtering rod 4022 and the inner wall of the first end (i.e., the lower end of the first filtering barrel 4023 in FIG. 2) of the first filtering barrel 4023, and between the second filtering rod 5022 and the inner wall of the first end (i.e., the lower end of the second filtering barrel 5023 in FIG. 2) of the second filtering barrel 5023 are small, in this way, debris such as gravel and buttons in the water can be further filtered to obtain a good filtering effect.

[0046] As shown in FIGS. 1 to 3 and according to the orientation shown in FIG. 2, the height of the first filter barrel 4023 is lower than that of the second filter barrel 5023. The radial dimension of the first end of the second filter barrel 5023 is smaller than the radial dimension of the first end of the first filter barrel 4023. When the first filter rod 4022 and the second filter rod 5022 are located at the same height, their diameters are approximately the same. Thus, the gap between the second filter rod 5022 and the inner wall of the first end of the second filter barrel 5023 is smaller than the gap between the first filter rod 4022 and the inner wall of the first end of the first filter barrel 4023. Since the height of the second filter barrel 5023 is relatively high, the flow rate of water is reduced after entering the second water supply chamber 103, and then reaches the first end of the second filter barrel 5023 (i.e., the lower end of the second filter barrel 5023 in FIG. 2), enters the second drainage chamber 108 through the gap between the second filter barrel 5023 and the second filter rod 5022. And because the gap between the second filter rod 5022 and the inner wall of the first end of the second filter barrel 5023 is smaller, sundries such as gravel and buttons in the water can be filtered better. That is, the second filter component 50 can obtain a better filtering effect than the first filter component 40, that is, the purity of the water coming out of the second drain port 105 is higher. When using the double pump assembly of the present invention, a water channel with a higher requirement for water cleanliness may be connected to the second drain port 105, thereby better meeting the filtering requirements.

[0047] It should be noted that the height of the first filtering barrel 4023 may be the same as that of the second filtering barrel 5023. In this case, the diameter of the first filtering rod 4022 may be larger than the diameter of the second filtering rod 5022 when they are located at the same height. Thus, by making the gap between the first filtering rod 4022 and the inner wall of the first end of the first filtering barrel 4023 smaller than the gap between the second filtering rod 5022 and the inner wall of the first end of the second filtering barrel 5023, it is possible to ensure that the second filtering component 50 obtains a better filtering effect. Obviously, the gap between the second filtering rod 5022 and the inner wall of the first end of the second filtering barrel 5023 may be the same as the gap between the first filtering rod 4022 and the inner part of the first end of the first filtering barrel 4023. In this case, since the height of the first filtering barrel 4023 is lower than that of the second filtering barrel 5023, the flow rate of water at the first end of the first filtering barrel 4023 is smaller than the flow rate of water at the first end of the second filtering barrel 5023, and the filtering effect of the second filtering component 50 is also better than that of the first filtering component 40. On the premise of not departing from the principle of this application, those skilled in the art can flexibly select the specific installation form of the first filtering barrel 4023 and the second filtering barrel 5023 according to the specific application scenario, as long as the impurities in the water flowing through the double pump assembly can be filtered.

[0048] It should be noted that the first filtering member 402 and the second filtering member 502 may adopt other installation methods. For example, the first filtering member 402 and the second filtering member 502 may be installed as a filter screen or a filter grill. Taking the example that the first filtering member 402 is installed as a filter screen, the filter screen is installed in the first through hole 111, and the water entering the first water supply chamber 102 through the water supply port 101 is filtered by the filter screen and then enters the first drainage chamber 107. On the premise of not departing from the principle of this application, those skilled in the art can flexibly select the specific installation form of the first filtering member 402 and the second filtering member 502 according to the specific application scenario, as long as the impurities in the water flowing through the double pump assembly can be filtered.

[0049] Hereinafter, taking the case where a circulation water channel and a drainage water channel are included in a drum washing machine as an example, specific embodiments of the double pump assembly of the present invention will be described with reference to the drawings.

[0050] As shown in FIGS. 1 to 3, the drum washing machine includes a housing (not shown), an outer drum (not shown) is installed in the housing, and an inner drum (not shown) is installed inside the outer drum, and the inner drum can rotate relative to the outer drum. The double pump assembly is installed in the housing, and its water inlet 101 is connected to the bottom of the outer drum. The drum washing machine includes a circulation water channel (not shown) and a drainage water channel (not shown). The first end of the drainage water channel is connected to the first drainage port 104 of the double pump assembly by means of engagement connection or a method such as a hose clamp, and the second end extends out of the housing. The first end of the circulation water channel is connected to the second drainage port 105 of the double pump assembly by means of engagement connection or a method such as a hose clamp, and the second end is connected to the upper part of the outer drum. In this way, during the operation of the drum washing machine, the inner drum rotates the laundry to be washed put into it, and the laundry to be washed is repeatedly lifted and dropped. Combined with the action of the washing water and the detergent, the laundry to be washed can be washed. At this time, the second pump head component 30 is operated. Due to the action of the second pump head component 30, the water at the bottom of the outer drum enters the second water supply chamber 103 of the double pump assembly through the water inlet 101, is filtered by the second filtering component 50, then enters the circulation water channel through the second drainage port 105, and then returns to the upper part of the outer drum. In the dehydration stage, the first pump head component 20 is operated. Due to the action of the first pump head component 20, the water in the outer drum enters the first water supply chamber 102 of the double pump assembly through the water inlet 101, is filtered by the first filtering component 40, then enters the drainage water channel through the first drainage port 104, and is discharged through the drainage water channel.

[0051] As shown in FIGS. 1 to 3, the double pump assembly further includes a mounting component 60, and the mounting component 60 includes a first mounting plate 601 and a second mounting plate 602. The first mounting plate 601 is installed outside the pump body 10. The first mounting plate 601 is substantially a rectangular plate. Two positioning posts 6011 and four first screw holes 6012 are installed on the first mounting plate 601. Two positioning holes (not shown) and four second screw holes (not shown) are installed at corresponding positions on the second mounting plate 602. Three protruding ends 6021 are installed on the second mounting plate 602, and a third screw hole 6022 is installed on each protruding end 6021. During installation, the two positioning posts 6011 are aligned with the two positioning holes respectively and inserted into the positioning holes. After each fastening member (such as a screw, a bolt, etc.) passes through the first screw hole 6012 and the second screw hole in sequence, tightening is performed to fix and connect the first mounting plate 601 and the second mounting plate 602. Then, by making each fastening member (such as a screw, a bolt, etc.) be fixedly connected to the housing of the drum washing machine after passing through the second screw hole, the double pump assembly is installed in the housing of the drum washing machine. Obviously, the fastening member may pass through the second screw hole and the first screw hole 6012 in sequence.

[0052] It should be noted that the numbers of the above-mentioned positioning posts, the first screw holes, and the protruding ends are only exemplary descriptions. On the premise of not departing from the principle of this application, those skilled in the art can flexibly select the specific numbers of the positioning posts, the first screw holes, and the protruding ends according to the specific application scenario, as long as the double pump assembly can be installed in the housing by the first mounting plate 601 and the second mounting plate 602.

[0053] It should be noted that the first mounting plate 601 and the second mounting plate 602 may be fixedly connected by means such as engagement connection, insertion connection, adhesion, screw connection, etc. The second mounting plate 602 may be fixedly connected to the housing by means such as engagement connection, insertion connection, adhesion, screw connection, etc. On the premise of not departing from the principle of this application, those skilled in the art can flexibly select the connection methods of the first mounting plate 601 and the second mounting plate 602, and the second mounting plate 602 and the housing according to the specific application scenario, as long as the double pump assembly can be fixedly installed in the housing.

[0054] It should be noted that the mounting component 60 may be installed in other forms. For example, the mounting component 60 only includes the first mounting plate 601, and the housing is provided with mounting holes that fit into the positioning posts 6011 on the first mounting plate 601. In this way, through the fitting of the positioning posts 6011 and the mounting holes, after the fastening member passes through the first screw hole 6012, it is connected to the housing, and the double pump assembly can also be fixedly installed in the housing. Also, for example, the mounting component 60 includes two mounting pieces extending outward from the outer wall of the pump body 10, and each mounting piece is provided with an insertion hole. After each fastening member passes through the insertion hole, it is connected to the housing. In this way, the double pump assembly can also be fixedly installed in the housing. On the premise of not departing from the principle of this application, those skilled in the art can flexibly select the specific installation form of the mounting component 60 according to the specific application scenario, as long as the double pump assembly can be installed in the housing.

[0055] As shown in FIGS. 1 to 3 and according to the orientation shown in FIG. 3, a drain 113 is further installed on the pump body 10. The drain 113 communicates with the first water supply chamber 102 and is located at the lowest position of the first water supply chamber 102. In this way, when the operation of the double pump assembly stops, the water in the pump body 10 is discharged through the drain 113 until the water in the pump body 10 is completely discharged, thereby avoiding the remaining water in the pump body 10 for bacteria to breed and generate strange odors.

[0056] It should be noted that the drain 113 may communicate with the second water supply chamber 103. On the premise of not departing from the principle of the present application, those skilled in the art can flexibly select the specific installation position of the drain 113 according to the specific application scenario, and it is only necessary to drain the water in the pump body 10 by the drain 113.

[0057] The second aspect of the present invention further provides a clothing treatment device, and the clothing treatment device includes the double pump assembly described in any one of the above aspects.

[0058] It should be noted that the clothing treatment device has all the technical effects of the double pump assembly, and will not be described herein again.

[0059] In summary, in the preferred technical solution of the present invention, one water inlet 101, two drain outlets and two pump head components are installed in the pump body 10, so that two pumps are integrated, and two different and non-interfering flow paths can be realized with only one pump body 10. The required installation space is relatively small, the installation is easy, the cost is also reduced, and the noise generated during operation can be reduced. The installation of the intermediate chamber 106, the first drain chamber 107 and the second drain chamber 108 can ensure the stable operation of the double pump assembly. The installation of the first filtration component 40 and the second filtration component 50 can better meet the water quality requirements of different waterways.

[0060] Of course, between the above replaceable embodiments, and between the replaceable embodiments and the preferred embodiments, they can also be used in combination with each other, and thus can be combined into new embodiments to be applied to more specific application scenarios.

[0061] It should be noted that those skilled in the art can understand that some of the embodiments described herein include certain features included in other embodiments rather than other features, and that combinations of features of different embodiments belong within the scope of the present invention and mean forming different embodiments. For example, in the claims of the present invention, any one of the embodiments for which protection is claimed can be used in any combination.

[0062] So far, the technical solution of the present invention has been described in combination with the preferred embodiments shown in the drawings. It is easily understood by those skilled in the art that the protection scope of the present invention is clearly not limited to these specific embodiments. On the premise of not departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to related technical features, and the technical solutions after these changes or substitutions all belong within the protection scope of the present invention.

Description of Reference Numerals

[0063] 10 Pump body 101 Water inlet 102 First water supply chamber 103 Second water supply chamber 104 First drain outlet 105 Second drain outlet 106 Intermediate chamber 107 First drain chamber 108 Second drain chamber 109 First mounting port 1091 Second arc segment 110 Second mounting port 1101 Fourth arc segment 111 First through hole 1111 Second annular boss 112 Second through hole 1121 Fourth annular boss 113 Drain 20 First pump head component 201 First drive mechanism 30 Second pump head component 301 Second drive mechanism 40 First filtration component 401 First screw cap 4011 First arc segment 4012 First screw cap body 4013 First holding end 4014 First flap 402 First filtration member 4021 First base 40211 First flange 40212 Second flange 4022 First filtration rod 4023 First filtration barrel 40231 Third flange 40232 Fourth flange 40233 First annular boss 4024 First connecting member 50 Second filtration component 501 Second screw cap 5011 Third arc segment 5012 Second screw cap body 5013 Second holding end 5014 Second flap 502 Second filtration member 5021 Second base 50211 Fifth flange 50212 Sixth flange 5022 Second filtration rod 5023 Second filtration barrel 50231 Seventh flange 50232 Eighth flange 50233 Third annular boss 5024 Second connecting member 60 Mounting component 601 First mounting plate 6011 Positioning post 6012 First screw hole 602 Second mounting plate 6021 Protruding end 6022 Third screw hole.

Claims

Claim 1 A double pump assembly, comprising a pump body, wherein a first water supply chamber and a second water supply chamber communicating with each other are installed in the pump body, a water inlet is installed on the pump body, and the water inlet communicates with the first water supply chamber or the second water supply chamber, the pump body is further provided with a first drain outlet and a second drain outlet, the double pump assembly further includes a first pump head component and a second pump head component installed on the pump body, and the first pump head component is configured to discharge the water entering the first water supply chamber through the water inlet via the first drain outlet, and the second pump head component is configured to discharge the water entering the second water supply chamber through the water inlet via the second drain outlet, A double pump assembly characterized by the above. Claim 2 An intermediate chamber is further installed in the pump body, the intermediate chamber is installed between the first water supply chamber and the second water supply chamber, and communicates the first water supply chamber and the second water supply chamber, The double pump assembly according to claim 1, characterized by the above. Claim 3 A first drain chamber and a second drain chamber are further installed in the pump body, the first drain chamber communicates with the first water supply chamber, the second drain chamber communicates with the second water supply chamber, the first drain outlet communicates with the first drain chamber, and the second drain outlet communicates with the second drain chamber, The double pump assembly according to claim 1, characterized by the above. Claim 4 The double pump assembly further includes a first filtration component removably installed on the pump body, a first through hole communicates between the first water supply chamber and the first drain chamber, and the first filtration component is installed to be able to filter the water entering the first drain chamber through the first through hole, The double pump assembly according to claim 3, characterized by the above. Claim 5 The pump body is provided with a first mounting port communicating with the first water supply chamber, and the first filtering component includes a first screw cap fitted and connected to the first mounting port, and a first filtering member having a first end connected to the first screw cap and a second end connected to the first through hole. The double pump assembly according to claim 4, characterized in that.

6. The double pump assembly further includes a second filtering component removably installed on the pump body. A second through hole communicates between the second water supply chamber and the second drainage chamber. The second filtering component is installed so as to be able to filter water entering the second drainage chamber via the second through hole. The double pump assembly according to claim 5, characterized in that.

7. The pump body is provided with a second mounting port communicating with the second water supply chamber, and the second filtering component includes a second screw cap fitted and connected to the second mounting port, and a second filtering member having a first end connected to the second screw cap and a second end connected to the second through hole. The double pump assembly according to claim 6, characterized in that.

8. The first filtering member includes a first base, a first filtering rod and a first filtering barrel installed on the first base. The first base is connected to the first screw cap. The end of the first filtering rod away from the first base is inserted into the first filtering barrel through the first end of the first filtering barrel. The second end of the first filtering barrel is connected to the first through hole. The second filtering member includes a second base, a second filtering rod installed on the second base, and a second filtering barrel. The second base is connected to the second screw cap. The end of the second filtering rod away from the second base is inserted into the second filtering barrel through the first end of the second filtering barrel. The second end of the second filtering barrel is connected to the second through hole. Here, the height of the first filtering barrel is below that of the second filtering barrel, and the gap between the second filtering rod and the inner wall of the first end of the second filtering barrel is below the gap between the first filtering rod and the inside of the first end of the first filtering barrel. The double pump assembly according to claim 7, characterized in that.

9. The double pump assembly further includes an attachment component connected to a target component, and the pump body is installed on the target component via the attachment component and / or a drain communicating with the first water supply chamber or the second water supply chamber is further installed in the pump body. The double pump assembly according to claim 1, characterized in that.

10. including the double pump assembly according to any one of claims 1 to 9 above, An apparel treatment apparatus characterized by that.

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