Drainage system and washing equipment

By introducing a drain pump and siphon assembly into the top-drain washing machine and utilizing the floating parts and siphon principle, the problem of residual wastewater in the drain pump is solved, the drain pump is dried, and bacteria growth and odor generation are prevented.

CN120592012APending Publication Date: 2025-09-05QINGDAO HAIER WASHING ELECTRIC APPLIANCES CO LTD +1
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Patent Information

Application Number
CN202410248414.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-03-05
Publication Date
2025-09-05

AI Technical Summary

Technical Problem

When the water volume of the existing top-drain washing machine is insufficient at the end of drainage, the waste water flows back into the drainage pump, causing a humid environment that is prone to breeding bacteria and odor.

Method used

A drainage system is used, including a drainage pump, a drainage pipe and a siphon assembly. A floating part is used to connect the siphon pipe when the drainage pump is working. When the drainage pump stops, the siphon pipe generates negative pressure to suck out residual wastewater, ensuring that the drainage pump is dry.

Benefits of technology

Effectively drain residual wastewater from the drainage pump to avoid a humid environment, prevent bacteria growth and odor generation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention belongs to the technical field of washing equipment, and particularly relates to a drainage system and washing equipment. The drainage system comprises a drainage pump, a drainage pipe and a siphon assembly, the drainage pump is provided with a water inlet, a first drainage port and a second drainage port, the second drainage port is located at the bottom of the drainage pump, and the siphon assembly comprises a siphon, a floating part, a first branch pipe and a second branch pipe. The second branch pipe is located on the side, away from the drainage pump, of the first branch pipe and communicates with the first branch pipe and the siphon, and the floating piece is located in the first branch pipe and moves along the first branch pipe. According to the drainage system, after the drainage pump stops working, residual waste water in the drainage pump and waste water flowing back from the drainage pipe are completely discharged through the siphon, and then no waste water is left in the drainage pump, so that the interior of the drainage pump is dry, bacteria are not prone to breeding, and peculiar smells caused by mildewing are avoided.
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Description

Technical Field

[0001] The present application belongs to the technical field of washing equipment, and specifically relates to a drainage system and washing equipment. Background Art

[0002] Front-loading washing machines are currently the most commonly used household cleaning appliances, and are primarily categorized as top-drain and bottom-drain models. Top-drain washing machines can be installed in locations with high drain outlets and no floor drains, as well as locations with floor drains. Furthermore, top-drain washing machines use a drain pump, resulting in faster drainage, making them more widely used.

[0003] A top-drain washing machine includes a washing drum, a drain pipe, and a drain pump. The drain pump is located below the washing drum and connected to the outer drum. The drain pump has a water inlet and a drain outlet. The water inlet is connected to the outer drum, and the drain outlet is connected to one end of the drain pipe, the other end of which extends outside the top-drain washing machine. Wastewater from washing clothes in the outer drum flows into the drain pump, which then drives the wastewater out of the top-drain washing machine through the drain outlet and drain pipe.

[0004] However, at the end of drainage, the water volume is insufficient, and air enters the drain pump, the drain pump stops draining, and the waste water in the drain pipe will flow back into the drain pump. The waste water is difficult to discharge in the drain pump, causing the top drainage washing machine to be in a humid environment for a long time, which is prone to breeding bacteria, mold and odor. Summary of the Invention

[0005] The present application provides a drainage system and washing equipment to solve the problem that the above-mentioned wastewater is difficult to discharge in the drainage pump, resulting in the upper drainage washing machine being in a humid environment for a long time, which is prone to breeding bacteria, mold and producing odor.

[0006] In one aspect, the present application provides a drainage system for washing equipment, the drainage system comprising: a drainage pump, a drainage pipe, and a siphon assembly, the drainage pump having a water inlet, a first drainage outlet, and a second drainage outlet, the water inlet being connected to a water storage chamber of the washing equipment, the water inlet end of the drainage pipe being connected to the first drainage outlet, and the second drainage outlet being located at the bottom of the drainage pump;

[0007] The siphon assembly includes a siphon pipe, a floating member, a first branch pipe and a second branch pipe, and the water inlet end of the siphon pipe is connected to the second drain port;

[0008] The first branch pipe connects the drain pipe and the siphon pipe, and the second branch pipe is located on a side of the first branch pipe away from the drain pump, and the second branch pipe connects the first branch pipe and the siphon pipe;

[0009] The floating member is located in the first branch pipe and moves along the first branch pipe. The floating member is configured to move toward the siphon pipe when the drainage pump is working to connect the drainage pipe with part of the siphon pipe, and to move toward the drainage pipe when the drainage pump stops working to close the water inlet end of the first branch pipe or the water inlet end of the second branch pipe.

[0010] In some technical solutions of the above drainage system, the drainage pipe has a first opening on its wall, the siphon pipe has a second opening on its wall, and the first branch pipe connects the first opening and the second opening;

[0011] When the drainage pump stops working, the floating member abuts against the end surface of the first opening to close the first opening.

[0012] In some technical solutions of the above drainage system, the floating member is clearance-matched with the first branch pipe, and a blocking piece is provided in the first opening.

[0013] In some technical solutions of the above drainage system, the first opening is located on a side wall of the drainage pipe close to the siphon pipe, and the second opening is located on a side wall of the siphon pipe close to the drainage pipe.

[0014] In some technical solutions of the above drainage system, the first branch pipe is arranged vertically.

[0015] In some technical solutions of the above-mentioned drainage system, the siphon pipe includes a first siphon section and a second siphon section, and the second siphon section is located in the drainage pipe; the siphon assembly also includes a connecting elbow, which connects the water outlet end of the first siphon section and the water inlet end of the second siphon section.

[0016] In some technical solutions of the above-mentioned drainage system, the siphon assembly also includes a tee pipe, which has a first end, a second end and a third end. The connecting bend pipe includes a first bend pipe and a second bend pipe. The first bend pipe connects the first end with the water inlet end of the second siphon section, the second bend pipe connects the second end with the water outlet end of the first siphon section, and the third end is connected with the water outlet end of the second branch pipe.

[0017] In some technical solutions of the above drainage system, the drainage pipe includes a first drainage section, a mounting pipe, and a second drainage section, and the mounting pipe connects the first drainage section and the second drainage section;

[0018] One end of the first branch pipe is communicated with the installation pipe, the second siphon section is located in the second drainage section, and the connecting elbow is inserted into the installation pipe through the pipe wall of the installation pipe.

[0019] In some technical solutions of the above drainage system, the first drainage section is higher than the drainage pump and is inclined toward the first drainage outlet.

[0020] On the other hand, the present application provides a washing device, comprising a device body and any one of the above-mentioned drainage systems connected to the device body.

[0021] The present application provides a drainage system and washing equipment. The drainage system includes: a drainage pump, a drainage pipe, and a siphon assembly. The drainage pump has a water inlet, a first drainage port, and a second drainage port. The siphon assembly includes a siphon pipe, a floating member, a first branch pipe, and a second branch pipe. When the drainage pump is operating, the drainage pump drives wastewater in the drainage pump to be discharged through the drainage pipe. The floating member moves toward the siphon pipe to interrupt the siphon pipe, connecting the drainage pipe, the first branch pipe, and the second branch pipe. Part of the wastewater in the drainage pipe is discharged sequentially through the first branch pipe, the second branch pipe, and the portion of the siphon pipe. When the drainage pump stops operating, negative pressure is generated in the portion of the siphon pipe. The floating member moves toward the drainage pipe to cancel the interruption of the siphon pipe. The second drainage port is located at the bottom of the drainage pump. The negative pressure in the portion of the siphon pipe then draws all the wastewater in the drainage pump to be discharged sequentially through the second drainage port and the siphon pipe. In this way, after the drain pump stops working, the remaining wastewater in the drain pump and the wastewater flowing back from the drain pipe can be discharged through the siphon tube, so that there is no wastewater remaining in the drain pump, making the drain pump relatively dry, not easy to breed bacteria, and avoiding mold and odor. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0023] Figure 1 A schematic diagram of the structure of some washing equipment provided in the embodiments of the present application;

[0024] Figure 2 for Figure 1 Schematic diagram of the structure of the drainage pump;

[0025] Figure 3 for Figure 1 Schematic diagram of the structure of part of the siphon component when the drainage pump is working;

[0026] Figure 4 for Figure 1 Schematic diagram of the structure of part of the siphon component when the drainage pump stops working.

[0027] Description of reference numerals:

[0028] 100-drain pump;

[0029] 110-water inlet; 120-first drain outlet; 130-second drain outlet;

[0030] 200-drain pipe;

[0031] 210 - first drainage section; 220 - mounting pipe; 221 - first opening; 230 - second drainage section;

[0032] 310 - siphon tube; 311 - first siphon section; 3111 - second opening; 312 - second siphon section;

[0033] 320- floating part; 330- first branch pipe; 340- second branch pipe;

[0034] 350-tee pipe; 351-first end; 352-second end; 353-third end;

[0035] 360-connecting elbow; 361-first elbow; 362-second elbow;

[0036] 400-box; 500-outer tube; 600-inner tube; 700-water pipe.

[0037] The above drawings illustrate specific embodiments of the present application, which will be described in more detail below. These drawings and the textual description are not intended to limit the scope of the present application in any way, but rather to illustrate the concepts of the present application to those skilled in the art by reference to specific embodiments. DETAILED DESCRIPTION

[0038] To make the objectives, technical solutions, and advantages of this application more clear, the technical solutions in this application will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0039] In the embodiments of the present application, the terms "upper", "lower", "inside", "middle", "outside", "front", "back", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. These terms are primarily intended to better describe the present application and its embodiments, and are not intended to limit the indicated devices, elements, or components to having a specific orientation, or to being constructed and operated in a specific orientation. Moreover, in addition to being used to indicate orientations or positional relationships, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in certain circumstances. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present application can be understood based on the specific circumstances.

[0040] Furthermore, the terms "disposed," "connected," and "fixed" should be interpreted broadly. For example, "connected" can mean a fixed connection, a removable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediary, or an internal connection between two devices, elements, or components. Those skilled in the art will understand the specific meanings of these terms in the embodiments of this disclosure based on the specific circumstances.

[0041] The terms "first," "second," "third," "fourth," and so on (if any) in the specification and claims of this application and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a particular order or sequential sequence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of the application described herein, for example, can be implemented in an order other than those illustrated or described herein.

[0042] In the embodiments of this application, words such as "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described in this application as "exemplary" or "for example" should not be construed as being preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "for example" is intended to present the relevant concepts in a concrete manner.

[0043] Unless otherwise stated, the term "plurality" means two or more.

[0044] In the prior art, a top-drain washing machine includes a washing drum, a drain pipe, and a drain pump. The drain pump is located below the washing drum and connected to the outer drum. The drain pump has a water inlet and a drain outlet. The water inlet is connected to the outer drum, and the drain outlet is connected to one end of the drain pipe. The other end of the drain pipe extends upward to the outside of the top-drain washing machine and then extends downward. Wastewater generated by washing clothes in the drum flows into the drain pump, which then drives the wastewater out of the top-drain washing machine through the drain outlet and drain pipe. However, at the end of drainage, when the water volume is insufficient and air enters the drain pump, the drain pump cannot drive the wastewater to continue to be discharged through the drain pipe, and the drain pump can only stop draining. At this time, since the highest point of the drain pipe is higher than the drain pump, the water in the part of the drain pipe between the highest point of the drain pipe and the drain pump will flow back into the drain pump. The returned wastewater is difficult to be discharged in the drain pump, and the wastewater evaporates slowly in the drain pump. Most of the water vapor generated by evaporation is also located in the upper drainage washing machine, causing the upper drainage washing machine to be in a humid environment for a long time, which in turn makes it easy for bacteria to grow in the upper drainage washing machine. At room temperature, it is more likely to mold and produce odor. Clothes will have an odor if they are not taken out in time after washing, and will also contaminate clothes when washed again.

[0045] Based on this, the present application provides a drainage system comprising: a drainage pump, a drainage pipe, and a siphon assembly. The drainage pump has a water inlet, a first drainage port, and a second drainage port. The siphon assembly comprises a siphon pipe, a floating member, a first branch pipe, and a second branch pipe. When the drainage pump is operating, the drainage pump drives wastewater in the drainage pump to be discharged through the drainage pipe. The floating member moves toward the siphon pipe to interrupt the siphon pipe, connecting the drainage pipe, the first branch pipe, and the second branch pipe. Part of the wastewater in the drainage pipe is discharged sequentially through the first branch pipe, the second branch pipe, and a portion of the siphon pipe. When the drainage pump stops operating, negative pressure is generated in a portion of the siphon pipe, and the floating member moves toward the drainage pipe to cancel the interruption of the siphon pipe. The second drainage port is located at the bottom of the drainage pump, so that the negative pressure in the portion of the siphon pipe can draw all the wastewater in the drainage pump to be discharged sequentially through the second drainage port and the siphon pipe. In this way, after the drain pump stops working, the remaining wastewater in the drain pump and the wastewater flowing back from the drain pipe can be discharged through the siphon tube, so that there is no wastewater remaining in the drain pump, making the drain pump relatively dry, not easy to breed bacteria, and avoiding mold and odor.

[0046] The embodiments of the present application are described below with reference to the accompanying drawings.

[0047] Reference Figures 1 to 4 As shown, a drainage system is used for washing equipment. The drainage system includes: a drainage pump 100, a drainage pipe 200 and a siphon assembly. The drainage pump 100 has a water inlet 110, a first drainage outlet 120 and a second drainage outlet 130. The water inlet 110 is used to communicate with the water storage chamber of the washing equipment. The water inlet end of the drainage pipe 200 is connected to the first drainage outlet 120, and the second drainage outlet 130 is located at the bottom of the drainage pump 100.

[0048] The siphon assembly includes a siphon tube 310, a floating member 320, a first branch tube 330, and a second branch tube 340. The water inlet end of the siphon tube 310 is connected to the second drain outlet 130. The first branch tube 330 connects the drain pipe 200 and the siphon tube 310. The second branch tube 340 is located on the side of the first branch tube 330 facing away from the drain pump 100 and connects the first branch tube 330 and the siphon tube 310.

[0049] Specifically, one end of the first branch pipe 330 is connected to the drain pipe 200 through the pipe wall of the drain pipe 200, and the other end of the first branch pipe 330 is connected to the siphon pipe 310 through the pipe wall of the siphon pipe 310. One end of the second branch pipe 340 is connected to the first branch pipe 330 through the pipe wall of the first branch pipe 330, and the other end of the second branch pipe 340 is connected to the siphon pipe 310.

[0050] The floating member 320 is located in the first branch pipe 330 and moves along the first branch pipe 330. The floating member 320 is configured to move toward the siphon pipe 310 when the drain pump 100 is working to interrupt the siphon pipe 310 and connect the drain pipe 200 with the water inlet end of the second branch pipe 340. When the drain pump 100 stops working, the floating member 320 is configured to move toward the drain pipe 200 to close the water inlet end of the first branch pipe 330 or the water inlet end of the second branch pipe 340.

[0051] Part of the drain pipe 200 is parallel to part of the siphon pipe 310. Both the drain pipe 200 and the siphon pipe 310 have an inverted U-shaped section. The highest point of the drain pipe 200 is located at the midpoint of the inverted U-shaped section of the drain pipe 200, and the highest point of the siphon pipe 310 is located at the midpoint of the inverted U-shaped section of the siphon pipe 310. It should be noted that the operation of the drain pump 100 refers to the drain pump 100 driving the wastewater in the drain pump 100 to be discharged through the drain pipe 200. The shutdown of the drain pump 100 refers to the entry of air into the drain pump 100, which shuts down the drain pump 100 and makes it unable to drive the wastewater in the drain pump 100 to be discharged. At this time, the wastewater between the highest point of the drain pipe 200 and the drain pump 100 will flow back into the drain pump 100 without being driven by the drain pump 100.

[0052] It is understood that the inner diameter of the siphon tube 310 is smaller than that of the drain pipe 200. The inner diameter of the siphon tube 310 can be adjusted based on the amount of wastewater in the drain pump, the time it takes for the washing machine to be refilled with water, and actual needs. This ensures that the siphon tube 310 can drain water through siphoning, and that all wastewater in the drain pump 100 is discharged through the siphon tube 310 before refilling. This prevents wastewater from remaining in the drain pump 100 when the washing machine is refilled with water, preventing the washing machine from being both filled with water and drained simultaneously, thereby preventing the washing machine from being affected.

[0053] Illustratively, a filter screen is provided on one side of the second drain outlet 130 to filter impurities in the wastewater before the wastewater enters the siphon pipe 310 , thereby preventing the impurities from entering the siphon pipe 310 and clogging the siphon pipe 310 .

[0054] In some embodiments, the existing drain pump 100 has a flow-through connector, and the second drain outlet 130 can use the flow-through connector. The water inlet end of the siphon tube 310 is sleeved on the flow-through connector to connect the water inlet end of the siphon tube 310 to the second drain outlet 130. In this way, the siphon tube 310 can be connected to the drain pump 100 without changing the structure of the existing drain pump 100.

[0055] In some embodiments, the outlet end of the siphon tube 310 is lower than the second drain outlet 130 to facilitate triggering a siphon phenomenon in the siphon tube 310. For example, the outlet end of the drain pipe 200 is lower than the second drain outlet 130, and the outlet end of the siphon tube 310 is flush with the outlet end of the drain pipe 200, or the outlet end of the siphon tube 310 is slightly shorter than the outlet end of the drain pipe 200.

[0056] Specifically, before the drain pump 100 begins draining, the portion of the siphon pipe 310 is filled with wastewater. When the drain pump 100 is operating, the wastewater in the drain pump 100 is sequentially discharged through the first drain port 120 and the drain pipe 200. Simultaneously, some of the wastewater in the drain pipe 200 enters the first branch pipe 330 and applies pressure to the floating member 320, pushing the floating member 320 toward the siphon pipe 310 until the floating member 320 abuts against a portion of the wall of the portion of the siphon pipe 310, thereby interrupting the siphon pipe 310. The second branch pipe 340 is located on the side of the first branch pipe 330 facing away from the drain pump 100. At this point, the drain pipe 200, the first branch pipe 330, the second branch pipe 340, and the portion of the siphon pipe 310 are sequentially connected, allowing some of the wastewater in the drain pipe 200 to be discharged sequentially through the first branch pipe 330, the second branch pipe 340, and the portion of the siphon pipe 310. In this way, wastewater is discharged through the portion of the siphon pipe 310 and the drain pipe 200 at the same time, so that the drainage efficiency of the drainage system is higher.

[0057] When the drain pump 100 stops working, the drain pipe 200 stops draining, and the pressure of the wastewater in the drain pipe 200 on the floating member 320 almost disappears. The floating member 320 moves toward the drain pipe 200 under the action of buoyancy to close the water inlet end of the first branch pipe 330 and the water inlet end of the second branch pipe 340, and cancel the interruption of the siphon pipe 310. Since the inner diameter of the drain pipe 200 is large, the amount of wastewater in the drain pipe 200 is large, and the gravity of the wastewater is large, part of the wastewater before the highest point in the drain pipe 200 will flow back to the drain pump 100 due to gravity. The inner diameter of the partial siphon pipe 310 is small, the amount of wastewater in the partial siphon pipe 310 is small, and the gravity of the wastewater is small. The molecular tension of the wastewater in the partial siphon pipe 310 is greater than the gravity of the wastewater. The wastewater in the partial siphon pipe 310 will continue to be discharged through the highest point, thereby generating negative pressure in the partial siphon pipe 310, that is, triggering the siphon phenomenon. At this time, the negative pressure generated in the partial siphon pipe 310 can attract the wastewater in the drain pump 100 to be discharged through the second drain outlet 130 and the siphon pipe 310 in sequence.

[0058] In the drainage system provided by the embodiment of the present application, when the drain pump 100 is operating, the drain pump 100 drives the wastewater in the drain pump 100 to be discharged through the drain pipe 200. The floating member 320 moves toward the siphon pipe 310 to connect the drain pipe 200, the first branch pipe 330, and the second branch pipe 340. A portion of the wastewater in the drain pipe 200 is sequentially discharged through the first branch pipe 330, the second branch pipe 340, and the portion of the siphon pipe 310. When the drain pump 100 stops operating, negative pressure is generated in the portion of the siphon pipe 310. The floating member 320 moves toward the drain pipe 200 to cancel the interruption of the siphon pipe 310. The second drain port 130 is located at the bottom of the drain pump 100. The negative pressure generated in the portion of the siphon pipe 310 can then be drawn to drain all the wastewater in the drain pump 100 through the second drain port 130 and the siphon pipe 310. In this way, after the drain pump 100 stops working, the remaining wastewater in the drain pump 100 and the wastewater flowing back from the drain pipe 200 can be discharged through the siphon tube 310, so that there is no wastewater remaining in the drain pump 100, making the drain pump 100 relatively dry, not easy to breed bacteria, and avoiding mold and odor.

[0059] Reference Figure 1 、 Figure 3 and Figure 4 As shown, in some embodiments, the drain pipe 200 has a first opening 221 on its wall, the siphon pipe 310 has a second opening 3111 on its wall, and the first branch pipe 330 connects the first opening 221 and the second opening 3111. When the drain pump 100 stops working, the floating member 320 abuts against the end surface of the first opening 221 to close the first opening 221.

[0060] The first opening 221 connects the drain pipe 200 with the water inlet end of the first branch pipe 330 .

[0061] Specifically, when the drain pump 100 is operating, the floating member 320 is inserted into a portion of the siphon tube 310 through the second opening 3111, thereby interrupting the portion of the siphon tube 310. This allows the drain pipe 200, a portion of the first branch pipe 330, and the second branch pipe 340 to communicate sequentially, allowing some of the wastewater in the drain pipe 200 to flow into the first branch pipe 330 through the first opening 221. When the drain pump 100 stops operating, the floating member 320 moves through the second opening 3111 toward the first opening 221 and abuts against the end surface of the first opening 221, sealing the first opening 221 and uninterrupting the portion of the siphon tube 310.

[0062] Exemplarily, when the floating member 320 abuts against the end surface of the first opening 221 , the floating member simultaneously closes the first opening 221 and the water inlet end of the second branch pipe 340 .

[0063] In a specific implementation, the floating member 320 and the first branch pipe 330 are clearance-matched, and a blocking piece is provided in the first opening 221 .

[0064] Among them, the floating member 320 and the first branch pipe 330 are clearance-matched so that when the floating member 320 moves along the first branch pipe 330, the resistance encountered by the first branch pipe 330 is small without affecting the sealing between the floating member 320 and the first branch pipe 330. Part of the wastewater in the drain pipe 200 exerts a small pressure on the floating member 320 to push the floating member 320 toward the part of the siphon pipe 310, thereby facilitating the part of the wastewater in the drain pipe 200 to push the floating member 320 to move.

[0065] For example, the floating member 320 may be made of a material with low density, such as foam, plastic, or balsa wood, to increase the buoyancy of the floating member 320 so that the floating member 320 can quickly move toward the drain pipe 200 when the drain pump 100 stops working.

[0066] In some embodiments, a protective cover is provided on the floating member 320, which is wrapped around the outer surface of the floating member 320 to protect the floating member 320 and prevent the floating member 320 from being damaged, while improving the air tightness between the floating member 320 and the water inlet end of the second branch pipe 340.

[0067] Specifically, a baffle is provided in the first opening 221 to make the area of ​​the first opening 221 smaller than the cross-sectional area of ​​the floating member 320 , thereby preventing the floating member 320 from extending into the drain pipe 200 through the first opening 221 , thereby limiting the movement position of the floating member 320 .

[0068] In a specific implementation, the first opening 221 is located on a side wall of the drain pipe 200 close to the siphon pipe 310 , and the second opening 3111 is located on a side wall of the siphon pipe 310 close to the drain pipe 200 .

[0069] Specifically, the drain pipe 200 is located above part of the siphon pipe 310, the first opening 221 is located on the lower side wall of the drain pipe 200, the second opening 3111 is located on the upper side wall of the siphon pipe 310, and the second opening 3111 is located below the first opening 221, so that when part of the wastewater in the drain pipe 200 enters the first branch pipe 330 through the first opening 221, the pressure of the wastewater and the gravity of the wastewater together push the floating member 320 to move, thereby facilitating the movement of the floating member 320 toward the second opening 3111.

[0070] In a specific implementation, the first branch pipe 330 is arranged vertically so that the floating member 320 can move along the first branch pipe 330 under the action of buoyancy.

[0071] Furthermore, the second branch pipe 340 is perpendicular to the first branch pipe 330, or the second branch pipe 340 is inclined toward the second opening 3111, so that the wastewater in the first branch pipe 330 flows into the second branch pipe 340. In the embodiment of the present application, the second branch pipe 340 is perpendicular to the first branch pipe 330.

[0072] In some embodiments, the siphon pipe 310 includes a first siphon section 311 and a second siphon section 312, the second siphon section 312 is located in the drain pipe 200, and the siphon assembly also includes a connecting elbow 360, which connects the water outlet end of the first siphon section 311 and the water inlet end of the second siphon section 312.

[0073] The second siphon section 312 is disposed in the drain pipe 200 so that the drain pipe 200 can protect the second siphon section 312 and prevent damage to the second siphon section 312. The second siphon section 312 can slightly collide with the inner wall of the drain pipe 200, causing impurities on the inner wall of the drain pipe 200 to fall off the inner wall of the drain pipe 200, thereby preventing impurities from accumulating on the inner wall of the drain pipe 200.

[0074] The first siphon section 311 is located outside the drain pipe 200, and the second siphon section 312 is located inside the drain pipe 200. The first siphon section 311 and the second siphon section 312 are connected by a connecting elbow 360, so that the connection between the first siphon section 311 and the second siphon section 312 is more convenient.

[0075] Reference Figure 1 、 Figure 3 and Figure 4 As shown, in a specific implementation, the siphon assembly also includes a tee pipe 350, the tee pipe 350 has a first end 351, a second end 352 and a third end 353, the connecting bend pipe 360 ​​includes a first bend pipe 361 and a second bend pipe 362, the first bend pipe 361 connects the first end 351 with the water inlet end of the second siphon section 312, the second bend pipe 362 connects the second end 352 with the water outlet end of the first siphon section 311, and the third end 353 is connected to the water outlet end of the second branch pipe 340.

[0076] The water outlet of the second branch pipe 340 , the water outlet of the first siphon section 311 and the water inlet of the second siphon section 312 are connected by providing a tee pipe 350 and a connecting elbow 360 .

[0077] Specifically, when the drain pump 100 is operating, part of the wastewater in the drain pipe 200 is discharged sequentially through part of the first branch pipe 330, the second branch pipe 340, the third end 353, the first end 351, the first bend 361, and the second siphon section 312. When the drain pump 100 stops operating, the wastewater in the first siphon section 311 is discharged sequentially through the second bend 362, the second end 352, the first end 351, the first bend 361, and the second siphon section 312.

[0078] Reference Figure 1 、 Figure 3 and Figure 4 As shown, in some embodiments, the drain pipe 200 includes a first drain section 210, a mounting pipe 220, and a second drain section 230. The mounting pipe 220 connects the first drain section 210 and the second drain section 230. One end of the first branch pipe 330 is connected to the mounting pipe 220. The second siphon section 312 is located in the second drain section 230. The connecting elbow 360 is inserted into the mounting pipe 220 through the wall of the mounting pipe 220.

[0079] In this way, the first drainage section 210 and the second drainage section 230 are connected by the installation pipe 220. Compared with the drainage pipe 200 which is a complete pipeline, the connection between the connecting elbow 360 and the installation pipe 220 is more convenient, and it is convenient to connect the second siphon section 312 with the connecting elbow 360, thereby making the installation of the drainage system simpler and more convenient, and the installation efficiency is higher.

[0080] In some embodiments, the installation pipe 220 and the connecting elbow 360 can be integrated into a residual water drainage assembly. When installing the drainage system piping, the first drainage section 210, the second drainage section 230, the first siphon section 311, and the second siphon section 312 can be sequentially connected to the residual water drainage assembly, making installation simple, convenient, and efficient.

[0081] In a specific implementation, the first drainage section 210 is higher than the drainage pump 100 and is inclined toward the first drainage port 120 .

[0082] Part of the second drainage section 230 is in an inverted U-shape. When the drain pump 100 stops working after operation, the wastewater in the second drainage section 230 will flow back into the first drainage section 210. Therefore, the first drainage section 210 is arranged to be higher than the drain pump 100 and tilted toward the first drain outlet 120. In other words, the lowest point of the first drainage section 210 is located at the first drain outlet 120. This allows all wastewater in the first drainage section 210 to flow back into the drain pump 100 through the first drain outlet 120, thereby ensuring that no wastewater remains in the first drainage section 210.

[0083] Based on the above embodiment, this embodiment provides a washing device, including a device body and a drainage system connected to the device body.

[0084] The structure of the drainage system has been described in detail in the above embodiments and will not be repeated here.

[0085] Exemplarily, the washing machine is a top-drain washing machine. The main body of the top-drain washing machine includes a housing 400, a washing drum, and a water diversion pipe 700. The washing drum, water diversion pipe 700, and part of the drainage system are all located within the housing 400. The washing drum includes an outer drum 500 and an inner drum 600 located within the outer drum 500. The water diversion pipe 700 connects the outer drum 500 with the drainage system's drainage pump 100, which is located at the bottom of the housing 400. Clothes are washed in the inner drum 600. After washing, wastewater from the inner drum 600 flows through the outer drum 500 and water diversion pipe 700 to the drainage pump 100.

[0086] It can be understood that the water outlet ends of the drain pipe 200 and the siphon pipe 310 are both located outside the upper drainage washing machine, and the water outlet ends of the drain pipe 200 and the siphon pipe 310 can be extended to a floor drain or a container to discharge the waste water or reuse it.

[0087] In the washing machine and drainage system provided by the embodiments of the present application, when the drain pump 100 is operating, the drain pump 100 drives the wastewater in the drain pump 100 to be discharged through the drain pipe 200. Simultaneously, a portion of the wastewater in the drain pipe 200 is discharged sequentially through the first branch pipe 330, the second branch pipe 340, and the portion of the siphon pipe 310. When the drain pump 100 stops operating, the negative pressure generated in the portion of the siphon pipe 310 draws all the wastewater in the drain pump 100 out sequentially through the second drain port 130 and the siphon pipe 310, thereby eliminating any residual wastewater in the drain pump 100 and preventing the wastewater in the drain pump 100 from evaporating and generating water vapor. This keeps the area between the outer drum 500 and the inner drum 600 of the upper-drain washing machine relatively dry, making it less likely for bacteria to grow there, thus preventing mold and odor from contaminating the clothes in the inner drum 600.

[0088] So far, the technical solution of the present application has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the scope of protection of the present application is obviously not limited to these specific embodiments. The above embodiments are only used to illustrate the technical solution of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. However, these modifications or replacements do not cause the essence of the corresponding technical solution to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A drainage system for washing equipment, characterized in that: The drainage system includes: a drainage pump, a drainage pipe and a siphon assembly. The drainage pump has a water inlet, a first drainage outlet and a second drainage outlet. The water inlet is used to communicate with the water storage chamber of the washing device. The water inlet end of the drainage pipe is connected to the first drainage outlet. The second drainage outlet is located at the bottom of the drainage pump. The siphon assembly includes a siphon pipe, a floating member, a first branch pipe, and a second branch pipe. The water inlet end of the siphon pipe is connected to the second drain port. The first branch pipe connects the drain pipe and the siphon pipe. The second branch pipe is located on a side of the first branch pipe away from the drain pump and connects the first branch pipe and the siphon pipe. The floating member is located in the first branch pipe and moves along the first branch pipe. The floating member is configured to move toward the siphon pipe when the drainage pump is working to interrupt the siphon pipe and connect the drainage pipe with part of the siphon pipe. When the drainage pump stops working, the floating member moves toward the drainage pipe to close the water inlet end of the first branch pipe or the water inlet end of the second branch pipe.

2. The drainage system according to claim 1, characterized in that: The drain pipe has a first opening on its wall, the siphon pipe has a second opening on its wall, and the first branch pipe connects the first opening and the second opening; When the drainage pump stops working, the floating member abuts against the end surface of the first opening to close the first opening.

3. The drainage system according to claim 2, characterized in that: The floating member is loosely fitted with the first branch pipe, and a blocking piece is provided in the first opening.

4. The drainage system according to claim 2, characterized in that: The first opening is located on a pipe wall of the drain pipe close to the siphon pipe, and the second opening is located on a pipe wall of the siphon pipe close to the drain pipe.

5. The drainage system according to claim 4, characterized in that: The first branch pipe is arranged vertically.

6. The drainage system according to any one of claims 1 to 5, characterized in that: The siphon pipe comprises a first siphon section and a second siphon section, wherein the second siphon section is located in the drain pipe; The siphon assembly further includes a connecting elbow connecting the water outlet of the first siphon section and the water inlet of the second siphon section.

7. The drainage system according to claim 6, characterized in that: The siphon assembly also includes a tee pipe, which has a first end, a second end and a third end. The connecting elbow includes a first elbow and a second elbow. The first elbow connects the first end with the water inlet end of the second siphon section, the second elbow connects the second end with the water outlet end of the first siphon section, and the third end is connected with the water outlet end of the second branch pipe.

8. The drainage system according to claim 6, characterized in that: The drainage pipe includes a first drainage section, a mounting pipe and a second drainage section, and the mounting pipe connects the first drainage section and the second drainage section; One end of the first branch pipe is communicated with the installation pipe, the second siphon section is located in the second drainage section, and the connecting elbow is inserted into the installation pipe through the pipe wall of the installation pipe.

9. The drainage system according to claim 8, characterized in that: The first drainage section is higher than the drainage pump and is inclined toward the first drainage port.

10. A washing device, characterized in that: The invention comprises an equipment main body and a drainage system according to any one of claims 1 to 9 connected to the equipment main body.