Drainage system and washing equipment

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 siphon assembly comprises a siphon pipe, a control valve and a water inlet elbow, the siphon pipe comprises a first siphon section and a second siphon section, and the control valve is configured to control the water inlet elbow when the drainage pump works. When the drainage pump works, the water outlet end of the water inlet elbow is communicated with the water inlet end of the second siphon section so that waste water in the water inlet elbow can be discharged through the second siphon section, and when the drainage pump stops working, the water outlet end of the first siphon section is communicated with the water inlet end of the second siphon section so that waste water in the drainage pump can be discharged through the second drainage port, the first siphon section and the second siphon section in sequence. Therefore, residual wastewater in the drainage pump and wastewater flowing back from the drainage pipe can be discharged completely, no wastewater is left in the drainage pump, bacteria are not easy to breed, and peculiar smell caused by mildewing is avoided.

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] On the one hand, 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 end of the drainage pipe being connected to the first drainage outlet, the second drainage outlet being located at the bottom of the drainage pump, the water inlet being used to be connected to the water storage chamber of the washing equipment; the siphon assembly comprising a siphon pipe, a control valve and a water inlet elbow, the siphon pipe comprising a first siphon section and a second siphon section, the water inlet end of the first siphon section being connected to the second drainage outlet, the water outlet end of the first siphon section being connected to the control valve, the water inlet end of the water inlet elbow being connected to the second drainage outlet Located in the drain pipe, the water inlet end of the water inlet elbow is opposite to the drainage direction of the drain pipe, the water outlet end of the water inlet elbow is connected to the control valve, and the water inlet end of the second siphon section is connected to the control valve; the control valve is configured to connect the water outlet end of the water inlet elbow with the water inlet end of the second siphon section when the drain pump is working, so that the wastewater in the water inlet elbow is discharged through the second siphon section; when the drain pump stops working, connect the water outlet end of the first siphon section with the water inlet end of the second siphon section, so that the wastewater in the drainage pump is discharged through the second drain outlet, the first siphon section and the second siphon section in sequence.

[0007] In some technical solutions of the above-mentioned drainage system, the control valve includes a valve housing and a valve core, the valve core is located in the valve housing and moves relative to the valve housing, the valve housing has a first water inlet joint and a second water inlet joint, the first water inlet joint is connected to the water outlet end of the water inlet elbow, and the second water inlet joint is connected to the water outlet end of the first siphon section; the valve core is configured to move toward the first water inlet joint when the drainage pump stops working to close the first water inlet joint and connect the second water inlet joint with the water inlet end of the second siphon section, and to move toward the side away from the first water inlet joint when the drainage pump is working to close the second water inlet joint and connect the first water inlet joint with the water inlet end of the second siphon section.

[0008] In some technical solutions of the above-mentioned drainage system, the control valve also includes an elastic member, which is located in the valve housing, and the valve core is located between the elastic member and the first water inlet connector. When the drainage pump is working, the valve core moves toward the elastic member to compress the elastic member. When the drainage pump stops working, the elastic member drives the valve core to move and reset.

[0009] In some technical solutions of the above-mentioned drainage system, the valve housing includes a shell body and a shell cover located at both ends of the shell body, the elastic member is located in the shell cover on the side away from the drain pipe, and the valve core is located in the shell body. When the drainage pump is working, the valve core abuts against the end face of the shell cover that accommodates the elastic member. When the drainage pump stops working, the valve core abuts against the end face of the shell cover away from the elastic member.

[0010] In some technical solutions of the above-mentioned drainage system, the valve housing also has a first water outlet joint and a second water outlet joint, and the first water outlet joint and the second water outlet joint are both connected to the water inlet end of the second siphon section; the valve core is configured to, when the drainage pump is working, close the second water inlet joint and the second water outlet joint, and connect the first water inlet joint and the first water outlet joint; when the drainage pump stops working, close the first water inlet joint and the first water outlet joint, and connect the second water inlet joint and the second water outlet joint.

[0011] In some technical solutions of the above-mentioned drainage system, the first water inlet joint and the first water outlet joint are both located on a side of the valve housing close to the drain pipe, and the first water outlet joint is located between the first water inlet joint and the second water outlet joint.

[0012] In some technical solutions of the above-mentioned drainage system, the siphon assembly also includes a tee and a connecting elbow, the tee having a first end, a second end and a third end, the first end being connected to the first water outlet joint, the connecting elbow connecting the second water outlet joint and the second end, and the third end being connected to the water inlet end of the second siphon section.

[0013] In some technical solutions of the above-mentioned drainage system, the second siphon section is located in the drainage pipe; the siphon assembly further includes a drainage elbow, which connects the valve housing and the water inlet end of the second siphon section.

[0014] In some technical solutions of the above-mentioned drainage system, the drainage pipe includes a first drainage section, a second drainage section and a accommodating pipe, the accommodating pipe connects the first drainage section and the second drainage section, and the inner diameter of the accommodating pipe is larger than the inner diameter of the first drainage section and the inner diameter of the second drainage section; the second siphon section is located in the second drainage section, and the water inlet bend and the drainage bend are both inserted into the accommodating pipe through the pipe wall portion of the accommodating pipe, and the water inlet end of the water inlet bend is located in the accommodating pipe.

[0015] 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.

[0016] The present application provides a drainage system and washing equipment, wherein the drainage system includes a drainage pump, a drainage pipe, and a siphon assembly. The drainage pump has a first drainage port and a second drainage port, the drainage pipe is connected to the first drainage port, and the second drainage port is located at the bottom of the drainage pump. The siphon assembly includes a siphon pipe, a control valve, and an inlet elbow. The siphon pipe includes a first siphon section and a second siphon section. The first siphon section is connected to the second drainage port, the outlet end of the first siphon section is connected to the control valve, the inlet end of the inlet elbow is located in the drainage pipe, and the inlet end of the inlet elbow is opposite to the drainage direction of the drainage pipe, so that when the drainage pump is operating, wastewater in the drainage pipe can enter the inlet elbow at a higher pressure. The outlet end of the inlet elbow is connected to the control valve, and the inlet end of the second siphon section is connected to the control valve. When the drainage pump is operating, the drainage pump drives the wastewater in the drainage pump to be discharged through the drainage pipe. At the same time, the control valve connects the inlet elbow and the second siphon section, and part of the wastewater in the drainage pipe is discharged through the inlet elbow and the second siphon section in sequence. When the drain pump stops, negative pressure is generated in the second siphon section, and the control valve connects the first and second siphon sections, which in turn connect the first siphon section to the second drain outlet. This allows the second siphon section to draw wastewater from the drain pump and discharge it sequentially through the first and second siphon sections. This allows any remaining wastewater in the drain pump and any wastewater flowing back into the drain pipe to be drained through the siphon pipe after the drain pump stops, eliminating any wastewater from remaining in the drain pump. This drier interior of the drain pump prevents bacterial growth, mold, and odor. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] 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.

[0018] Figure 1 A schematic diagram of a portion of the structure of a washing device provided in an embodiment of the present application;

[0019] Figure 2 for Figure 1 Schematic diagram of the structure of the drainage pump;

[0020] Figure 3 for Figure 1 The middle part is a diagram of the siphon assembly when the drain pump stops working;

[0021] Figure 4 for Figure 1 The middle part is the status diagram of the siphon component when the drainage pump is working.

[0022] Description of reference numerals:

[0023] 100-drain pump; 110-water inlet; 120-first drain outlet; 130-second drain outlet;

[0024] 200-drain pipe; 210-first drainage section; 220-second drainage section; 230-accommodation pipe;

[0025] 310-siphon tube; 311-first siphon section; 312-second siphon section;

[0026] 320-control valve; 321-valve housing; 3211-housing body; 3212-housing cover;

[0027] 3213-first water inlet connector; 3214-first water outlet connector; 3215-second water inlet connector; 3216-second water outlet connector;

[0028] 322-valve core; 3221-main core; 3222-connecting rod; 3223-auxiliary core; 323-elastic member;

[0029] 330-water inlet elbow; 340-drainage elbow;

[0030] 350-tee pipe; 351-first end; 352-second end; 353-third end;

[0031] 360-connecting elbow; 370-installing pipe;

[0032] 400-box; 500-outer tube; 600-inner tube; 700-water pipe.

[0033] 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

[0034] 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.

[0035] 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.

[0036] 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.

[0037] 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.

[0038] 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.

[0039] Unless otherwise stated, the term "plurality" means two or more.

[0040] 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.

[0041] Based on this, an embodiment of the present application provides a drainage system, including a drainage pump, a drainage pipe, and a siphon assembly. The drainage pump has a first drainage port and a second drainage port, the drainage pipe is connected to the first drainage port, and the second drainage port is located at the bottom of the drainage pump. The siphon assembly includes a siphon pipe, a control valve, and an inlet elbow. The siphon pipe includes a first siphon section and a second siphon section. The first siphon section is connected to the second drainage port, the outlet end of the first siphon section is connected to the control valve, the inlet end of the inlet elbow is located in the drainage pipe, and the inlet end of the inlet elbow is opposite to the drainage direction of the drainage pipe, so that when the drainage pump is operating, wastewater in the drainage pipe can enter the inlet elbow at a higher pressure. The outlet end of the inlet elbow is connected to the control valve, and the inlet end of the second siphon section is connected to the control valve. When the drainage pump is operating, the drainage pump drives the wastewater in the drainage pump to be discharged through the drainage pipe. At the same time, the control valve connects the inlet elbow and the second siphon section, and part of the wastewater in the drainage pipe is discharged through the inlet elbow and the second siphon section in sequence. When the drain pump stops, negative pressure is generated in the second siphon section, and the control valve connects the first and second siphon sections, which in turn connect the first siphon section to the second drain outlet. This allows the second siphon section to draw wastewater from the drain pump and discharge it sequentially through the first and second siphon sections. This allows any remaining wastewater in the drain pump and any wastewater flowing back into the drain pipe to be drained through the siphon pipe after the drain pump stops, eliminating any wastewater from remaining in the drain pump. This drier interior of the drain pump prevents bacterial growth, mold, and odor.

[0042] The embodiments of the present application are described below with reference to the accompanying drawings.

[0043] Reference Figures 1 to 4As shown, an embodiment of the present application provides a drainage system for washing equipment, the drainage system including: a drainage pump 100, a drainage pipe 200 and a siphon assembly, the drainage pump 100 having a water inlet 110, a first drainage outlet 120 and a second drainage outlet 130, the water inlet end of the drainage pipe 200 is connected to the first drainage outlet 120, the second drainage outlet 130 is located at the bottom of the drainage pump 100, and the water inlet 110 is used to communicate with the water storage chamber of the washing equipment.

[0044] The siphon assembly includes a siphon pipe 310, a control valve 320 and an inlet elbow 330. The siphon pipe 310 includes a first siphon section 311 and a second siphon section 312. The water inlet end of the first siphon section 311 is connected to the second drain outlet 130, and the water outlet end of the first siphon section 311 is connected to the control valve 320. The water inlet end of the inlet elbow 330 is located in the drain pipe 200, and the water inlet end of the inlet elbow 330 is opposite to the drainage direction of the drain pipe 200. The water outlet end of the inlet elbow 330 is connected to the control valve 320, and the water inlet end of the second siphon section 312 is connected to the control valve 320. The control valve 320 is configured to connect the outlet end of the water inlet elbow 330 with the water inlet end of the second siphon section 312 when the drain pump 100 is working, so that the wastewater in the water inlet elbow 330 is discharged through the second siphon section 312; when the drain pump 100 stops working, connect the outlet end of the first siphon section 311 with the water inlet end of the second siphon section 312, so that the wastewater in the drain pump 100 is discharged through the second drain port 130, the first siphon section 311 and the second siphon section 312 in sequence.

[0045] Among them, part of the drainage pipe 200 is parallel to the second siphon section 312, and both the drainage pipe 200 and the second siphon section 312 have an inverted U-shaped section. The highest point of the drainage pipe 200 is located at the midpoint of the inverted U-shaped section of the drainage pipe 200, and the highest point of the second siphon section 312 is located at the midpoint of the inverted U-shaped section of the second siphon section 312.

[0046] 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.

[0047] The water inlet end of the drain pipe 200 is connected to the first drain outlet 120, and the drainage direction of the drain pipe 200 is from the first drain outlet 120 to the water outlet end of the drain pipe 200. The water inlet end of the water inlet elbow 330 faces in the opposite direction of the drainage direction of the drain pipe 200, so that when the drain pipe 200 is draining, some wastewater can enter the water inlet elbow 330 through the water inlet elbow 330. For example, the water inlet end of the water inlet elbow 330 is located on the axis of the drain pipe 200. The water flow velocity along the axis of the drain pipe 200 is relatively high, so that when the drain pipe 200 is draining, the wastewater can enter the water inlet elbow 330 at a relatively high pressure.

[0048] In some embodiments, an opening is provided at the water inlet end of the water inlet elbow 330, and the opening is trumpet-shaped, with the large end of the opening facing the drainage direction of the drain pipe 200, so that the wastewater in the drain pipe 200 enters the water inlet elbow 330 with greater pressure.

[0049] 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 .

[0050] It should be noted that the drain pump 100 being in operation means that the drain pump 100 drives the wastewater in the drain pump 100 to be discharged through the drain pipe 200. The drain pump 100 being stopped means that air has entered the drain pump 100 and the drain pump 100 is unable to drive the wastewater in the drain pump 100 to be discharged. In this case, 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.

[0051] In a specific implementation, before the washing machine drains, the control valve 320 connects the first siphon section 311 and the second siphon section 312. At this point, the first siphon section 311 and a portion of the second siphon section 312 are filled with wastewater. When the drain pump 100 is operating, wastewater in the drain pump 100 is sequentially discharged through the first drain port 120 and the drain pipe 200. Simultaneously, some wastewater in the drain pipe 200 enters the inlet elbow 330 through the inlet end of the inlet elbow 330. At this point, the control valve 320 connects the outlet end of the inlet elbow 330 with the inlet end of the second siphon section 312, allowing wastewater in the inlet elbow 330 to be discharged sequentially through the control valve 320 and the second siphon section 312. This allows wastewater to be discharged simultaneously through the second siphon section 312 and the drain pipe 200, resulting in a higher drainage efficiency for the drainage system. When the drain pump 100 stops working, due to the large inner diameter of the drain pipe 200, the amount of wastewater in the drain pipe 200 is large, the gravity of the wastewater is large, and the 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 second siphon section 312 is small, the amount of wastewater in the second siphon section is small, the gravity of the wastewater is small, the molecular tension of the wastewater in the second siphon section 312 is greater than the gravity of the wastewater, and the wastewater in the second siphon section 312 will The wastewater continues to be discharged through the highest point, thereby generating negative pressure in the second siphon section 312, i.e. triggering the siphon phenomenon. At this time, the control valve 320 connects the water outlet end of the first siphon section 311 with the water inlet end of the second siphon section 312, and the water inlet end of the first siphon section 311 is connected to the second drain port 130. The negative pressure generated by the second siphon section 312 attracts the wastewater in the drainage pump 100 to be discharged in sequence through the second drain port 130, the first siphon section 311, the control valve 320 and the second siphon section 312.

[0052] It is understood that the second drain port 130 is located at the bottom of the drain pump 100 so that all wastewater in the drain pump 100 can be discharged through the second drain port 130, thereby eliminating wastewater residue in the drain pump 100. Exemplarily, the second drain port 130 is located at the lowest point in the drain pump 100.

[0053] 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 first siphon section 311 is sleeved onto the flow-through connector to connect the water inlet end of the first siphon section 311 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.

[0054] In some embodiments, the first drain outlet 120 is lower than the water inlet end of the U-shaped section of the drain pipe 200, so that the wastewater between the highest point in the U-shaped section of the drain pipe 200 and the drain pump 100 can flow back to the drain pump 100 through the first drain outlet 120, thereby eliminating the wastewater residue between the water inlet end of the U-shaped section of the drain pipe 200 and the first drain outlet 120, and the wastewater after the highest point in the U-shaped section of the drain pipe 200 will continue to be discharged, thereby eliminating the wastewater residue in the drain pipe 200.

[0055] It is understood that the outlet of the second siphon section 312 is lower than the second drain outlet 130 to facilitate triggering a siphoning phenomenon within the siphon pipe 310. For example, the outlet of the drain pipe 200 is lower than the second drain outlet 130, and the outlet of the second siphon section 312 is flush with the outlet of the drain pipe 200, or slightly shorter than the outlet of the drain pipe 200.

[0056] 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. At the same time, the control valve 320 connects the water inlet bend 330 with the second siphon section 312, and a portion of the wastewater in the drain pipe 200 is sequentially discharged through the water inlet bend 330 and the second siphon section 312. When the drain pump 100 stops operating, negative pressure is generated in the second siphon section 312, and the control valve 320 connects the first siphon section 311 with the second siphon section 312. The first siphon section 311 is connected to the second drain outlet 130, which is located at the bottom of the drain pump 100. This allows the second siphon section 312 to draw the wastewater in the drain pump 100 and discharge it sequentially through the first siphon section 311 and the second siphon section 312. 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.

[0057] In some embodiments, the control valve 320 includes a valve housing 321 and a valve core 322. The valve core 322 is located in the valve housing 321 and moves relative to the valve housing 321. The valve housing 321 has a first water inlet connector 3213 and a second water inlet connector 3215. The first water inlet connector 3213 is connected to the water outlet end of the water inlet bend 330, and the second water inlet connector 3215 is connected to the water outlet end of the first siphon section 311.

[0058] The valve core 322 is configured to move toward the first water inlet joint 3213 when the drain pump 100 stops working to close the first water inlet joint 3213 and connect the second water inlet joint 3215 with the water inlet end of the second siphon section 312; and to move toward the side away from the first water inlet joint 3213 when the drain pump 100 is working to close the second water inlet joint 3215 and connect the first water inlet joint 3213 with the water inlet end of the second siphon section 312.

[0059] The water inlet elbow 330, the first water inlet joint 3213 and the water inlet end of the second siphon section 312 are sequentially connected to form a first drainage channel. The first siphon section 311, the second water inlet joint 3215 and the water inlet end of the second siphon section 312 are sequentially connected to form a second drainage channel.

[0060] Specifically, when the drain pump 100 is operating, the valve core 322 moves relative to the valve housing 321 to close the second drain channel and open the first drain channel, thereby allowing wastewater in the water inlet elbow 330 to flow through the first drain channel to the water inlet end of the second siphon section 312 and be discharged through the second siphon section 312. When the drain pump stops operating, the valve core 322 moves relative to the valve housing 321 to close the first drain channel and open the second drain channel, thereby allowing wastewater in the first siphon section 311 to flow through the second drain channel to the water inlet end of the second siphon section 312 and be discharged through the second siphon section 312.

[0061] In this way, by moving the valve core 322 relative to the valve housing 321 , the corresponding drainage channel can be opened when the drainage pump 100 is working or stopped, so that wastewater is discharged from the corresponding drainage channel to the second siphon section 312 .

[0062] In a specific implementation, the control valve 320 also includes an elastic member 323, the elastic member 323 is located in the valve housing 321, and the valve core 322 is located between the elastic member 323 and the first water inlet connector 3213. When the drainage pump 100 is working, the valve core 322 moves toward the elastic member 323 to compress the elastic member 323. When the drainage pump 100 stops working, the elastic member 323 drives the valve core 322 to move and reset.

[0063] The first water inlet connector 3213 is located on a side of the valve housing 321 close to the drain pipe 200, and the elastic member 323 is located on a side of the valve housing 321 away from the drain pipe 200. Before the drainage system drains water, the elastic member 323 is in a natural state.

[0064] Specifically, refer to Figure 4As shown, when the drain pump 100 is operating, it applies pressure to the wastewater in the drain pipe 200, forcing the wastewater to be discharged through the drain pipe 200. Some of the wastewater enters the water inlet elbow 330 and then enters the valve housing 321 through the first water inlet connector 3213. The wastewater then contacts the valve core 322 and transmits pressure to the valve core 322, pushing the valve core 322. This causes the valve core 322 to overcome the elastic force of the elastic member 323 and move toward the elastic member 323, thereby opening the first drain channel and closing the second drain channel. At this point, the elastic member 323 is in a compressed state.

[0065] Reference Figure 3 As shown, when drain pump 100 stops operating after operation, the pressure of wastewater entering valve housing 321 through first water inlet connector 3213 almost disappears. The elastic force of elastic member 323 is greater than the pressure of wastewater on valve core 322. Therefore, the elastic force of elastic member 323 pushes valve core 322 away from elastic member 323, thereby opening the second drainage channel and closing the first drainage channel. By providing elastic member 323, when drain pump 100 stops operating, elastic member 323 can drive valve core 322 to move back to its original position, opening second water inlet connector 3215, thereby allowing wastewater in drain pump 100 to be discharged through first siphon section 311 and second siphon section 312.

[0066] It is understood that the valve core 322 and the valve housing 321 are spaced apart to allow wastewater entering the valve housing 321 through the water inlet elbow 330 or the elastic member 323 to push the valve core 322 relative to the valve housing 321, thereby pushing the valve core 322 when the wastewater pressure is relatively low. Even if wastewater leaks slightly from the gap between the valve core 322 and the valve housing 321, it will not affect the drainage of the drainage system. Exemplarily, the elastic member 323 is a compression spring. This application uses a compression spring with a relatively small elastic coefficient so that wastewater can exert a relatively small pressure on the valve core 322 to push the valve core 322 to move.

[0067] In this way, when the drain pump 100 stops working, the valve core 322 is driven to move relative to the valve housing 321 by the pressure of the wastewater and the elastic member 323, so that the valve core 322 is driven to move relative to the valve housing 321 more conveniently, thereby making it easier to open the first drainage channel or the second drainage channel.

[0068] In some embodiments, the valve housing 321 includes a shell body 3211 and a shell cover 3212 located at both ends of the shell body 3211. The elastic member 323 is located in the shell cover 3212 on the side away from the drain pipe 200. The valve core 322 is located in the shell body 3211. When the drain pump 100 is working, the valve core 322 abuts against the end face of the shell cover 3212 that accommodates the elastic member 323. When the drain pump 100 stops working, the valve core 322 abuts against the end face of the shell cover 3212 on the side away from the elastic member 323.

[0069] The cross-sectional area of ​​the housing cover 3212 is smaller than that of the housing body 3211, and the areas at both ends of the valve core 322 are larger than the cross-sectional area of ​​the housing cover 3212. By providing the housing covers 3212 at both ends of the housing body 3211, the valve core 322 can only move within the housing body 3211, thereby limiting the position of the valve core 322.

[0070] It should be noted that the end surface of the shell cover 3212 is the end surface of the shell cover 3212 on the side close to the shell body 3211.

[0071] Exemplarily, a vent hole is provided on the housing cover 3212 near the elastic member 323 to prevent air pressure resistance from being generated when the valve core 322 moves along the housing body 3211 .

[0072] In some embodiments, the first water inlet connector 3213 is located on the housing cover 3212 on a side away from the elastic member 323 .

[0073] In a specific implementation, the valve housing 321 further includes a first water outlet connector 3214 and a second water outlet connector 3216, both of which are connected to the water inlet end of the second siphon section 312. The valve core 322 is configured to, when the drain pump 100 is operating, close the second water inlet connector 3215 and the second water outlet connector 3216, connecting the first water inlet connector 3213 and the first water outlet connector 3214; and, when the drain pump 100 is stopped, close the first water inlet connector 3213 and the first water outlet connector 3214, connecting the second water inlet connector 3215 and the second water outlet connector 3216.

[0074] The water inlet elbow 330, the first water inlet connector 3213, the first water outlet connector 3214, and the water inlet end of the second siphon section 312 are sequentially connected to form a first drainage channel. The first siphon section 311, the second water inlet connector 3215, the second water outlet connector 3216, and the water inlet end of the second siphon section 312 are sequentially connected to form a second drainage channel.

[0075] In a specific implementation, the first water inlet connector 3213 and the first water outlet connector 3214 are both located on a side of the valve housing 321 close to the drain pipe 200 , and the first water outlet connector 3214 is located between the first water inlet connector 3213 and the second water outlet connector 3216 .

[0076] The first water inlet connector 3213 and the first water outlet connector 3214 are both located near the drain pipe 200, allowing the valve core 322 to simultaneously seal the first water inlet connector 3213 and the first water outlet connector 3214. The second water inlet connector 3215 and the second water outlet connector 3216 are both located in the middle region of the valve housing 321 along the extension direction of the valve housing 321, and the second water inlet connector 3215 and the second water outlet connector 3216 are arranged opposite each other, allowing wastewater to flow through the second water inlet connector 3215 to the second water outlet connector 3216.

[0077] Illustratively, the first water inlet connector 3213 is located at the end of the valve housing 321 close to the drain pipe 200, the first water outlet connector 3214 and the second water outlet connector 3216 are both located on one side of the valve housing 321 close to the second siphon section 312, and the second water inlet connector 3215 is arranged opposite to the second water outlet connector 3216.

[0078] Specifically, the valve core 322 is I-shaped and includes a main core 3221, a connecting rod 3222, and an auxiliary core 3223. The connecting rod 3222 connects the main core 3221 and the auxiliary core 3223. The main core 3221 is located on the side of the valve housing 321 near the drain pipe 200. The main core 3221 is used to open the first drainage channel and close the second drainage channel, or open the second drainage channel and close the first drainage channel. A flow chamber for wastewater flow is defined between the main core 3221 and the auxiliary core 3223. The second water inlet connector 3215 and the second water outlet connector 3216 are both connected to the flow chamber, allowing wastewater to flow from the second water inlet connector 3215 to the second water outlet connector 3216. The auxiliary core 3223 is located near the elastic member 323 and seals the elastic member 323 to prevent oxidation caused by contact between wastewater and the elastic member 323, thereby increasing the service life of the elastic member 323.

[0079] It is understood that the height of the main core 3221 is greater than the diameter of the second water inlet connector 3215 so that the main core 3221 can close the second water inlet connector 3215. The second water inlet connector 3215 and the second water outlet connector 3216 are at the same height on the valve housing 321.

[0080] It should be noted that the connecting rod 3222 is located in the flow cavity. The connecting rod 3222 can be designed with a smaller cross-sectional area so that the area of ​​the flow cavity where wastewater can flow is larger, thereby facilitating the flow of wastewater in the flow cavity.

[0081] In the present application, the control valve 320 is located below the drain pipe 200, the first water inlet connector 3213 is located at the upper end of the valve housing 321, and the elastic member 323 is located at the lower end of the valve housing 321. Of course, the control valve 320 can also be located above the drain pipe 200, with the first water inlet connector 3213 located at the lower end of the valve housing 321 and the elastic member 323 located at the upper end of the valve housing 321. In this way, after all the wastewater in the drain pump 100 is discharged, no wastewater will remain in the water inlet elbow 330 and the control valve 320.

[0082] In some embodiments, the siphon assembly also includes a tee pipe 350 and a connecting elbow 360, the tee pipe 350 has a first end 351, a second end 352 and a third end 353, the first end 351 is connected to the first water outlet joint 3214, the connecting elbow 360 is connected to the second water outlet joint 3216 and the second end 352, and the third end 353 is connected to the water inlet end of the second siphon section 312.

[0083] The first water outlet joint 3214 , the second water outlet joint 3216 and the water inlet end of the second siphon section 312 are connected by providing a tee pipe 350 and a connecting elbow 360 .

[0084] In some embodiments, the siphon assembly further includes a mounting pipe 370 , which connects the water outlet end of the water inlet elbow 330 and the first water inlet joint 3213 .

[0085] In a specific implementation, the second siphon section 312 is located in the drain pipe 200 , and the siphon assembly further includes a drain elbow 340 , which connects the valve housing 321 with the water inlet end of the second siphon section 312 .

[0086] The drain elbow 340 is symmetrically arranged with the inlet elbow 330. The outlet end of the drain elbow 340 is located in the drain pipe 200 and faces the same direction as the drainage of the drain pipe 200. The provision of the drain elbow 340 facilitates the connection between the valve housing 321 and the inlet end of the second siphon section 312, making it easier to connect the second siphon section 312 to the valve housing 321 during installation of the drainage system.

[0087] Exemplarily, the inner diameters of the water inlet elbow 330 and the outlet elbow 340 are both the same as the inner diameter of the siphon tube 310 .

[0088] Specifically, the second siphon section 312 is disposed within the drain pipe 200, protecting it from damage. Furthermore, the second siphon section 312 is simply inserted within the drain pipe 200 and does not require connection to the drain pipe 200, thus reducing installation steps. 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, thereby preventing impurities from accumulating on the inner wall of the drain pipe 200.

[0089] In some embodiments, the water outlet end of the second siphon section 312 is flush with the water outlet end of the drain pipe 200 , or slightly shorter than the water outlet end of the drain pipe 200 .

[0090] In some embodiments, the drain pipe 200 includes a first drain section 210, a second drain section 220, and a receiving pipe 230. The receiving pipe 230 connects the first drain section 210 and the second drain section 220. The inner diameter of the receiving pipe 230 is larger than the inner diameters of the first drain section 210 and the second drain section 220. The second siphon section 312 is located within the second drain section 220. The inlet elbow 330 and the drain elbow 340 are both inserted into the receiving pipe 230 through the wall of the receiving pipe 230. The water inlet end of the inlet elbow 330 is located within the receiving pipe 230.

[0091] The first drainage section 210 and the second drainage section 220 have the same inner diameter. A portion of the water inlet elbow 330 and a portion of the water discharge elbow 340 are disposed within the receiving tube 230. The water inlet end of the water inlet elbow 330 is located within the receiving tube 230 and faces the drainage direction of the drain pipe 200. To prevent the installation of the water inlet elbow 330 from increasing drainage resistance within the receiving tube 230, the inner diameter of the receiving tube 230 is larger than the inner diameters of the first drainage section 210 and the second drainage section 220, thereby avoiding any impact on drainage within the receiving tube 230. For example, the discharge end of the water discharge elbow 340 may be located within the receiving tube 230 or within the second drainage section 220, but this is not a limitation in this embodiment.

[0092] In this way, by setting up the accommodating pipe 230, the first drainage section 210 and the second drainage section 220, compared to the drainage pipe 200 being a complete pipeline, it is relatively simple to connect the accommodating pipe 230 and the water inlet bend 330, thereby making the installation of the drainage system simpler and more convenient, and the installation efficiency is higher.

[0093] In some embodiments, the receiving pipe 230, control valve 320, water inlet elbow 330, and drain elbow 340 can be integrated into a residual water drainage assembly. When installing the drainage system piping, the first drain section 210, second drain section 220, first siphon section 311, and second siphon section 312 can be connected to the residual water drainage assembly in sequence, making installation simple, convenient, and efficient.

[0094] Based on the above embodiment, this embodiment provides a washing device, including a device body and a drainage system connected to the device body.

[0095] The structure of the drainage system has been described in detail in the above embodiments and will not be repeated here.

[0096] 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.

[0097] It can be understood that the water outlet end of the drain pipe 200 and the water outlet end of the second siphon section 312 are both located outside the upper drainage washing machine, so that the water outlet end of the drain pipe 200 and the water outlet end of the second siphon section 312 can be extended to a floor drain or a container to discharge the wastewater or reuse it.

[0098] In the washing machine provided by the embodiment of the present application, when the drain pump 100 is operating, wastewater in the drain pump 100 is discharged through the drain pipe 200 and the second siphon section 312. When the drain pump 100 stops operating, the wastewater in the drain pump 100 is discharged sequentially through the first siphon section 311 and the second siphon section 312. In this way, after the drain pump 100 stops operating, all remaining wastewater in the drain pump 100 and wastewater flowing back from the drain pipe 200 are discharged through the siphon section 310, thereby eliminating any wastewater from the drain pump 100 and preventing the wastewater 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 between the outer drum 500 and the inner drum 600, thus preventing mold and odor from contaminating the clothes in the inner drum 600.

[0099] 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 having a water inlet, a first drainage outlet and a second drainage outlet, the water inlet end of the drainage pipe being connected to the first drainage outlet, the second drainage outlet being located at the bottom of the drainage pump, and the water inlet being used to communicate with the water storage chamber of the washing device; The siphon assembly includes a siphon pipe, a control valve, and an inlet elbow. The siphon pipe includes a first siphon section and a second siphon section. The water inlet end of the first siphon section is communicated with the second drain outlet, and the water outlet end of the first siphon section is communicated with the control valve. The water inlet end of the inlet elbow is located in the drain pipe, and the water inlet end of the inlet elbow is opposite to the drainage direction of the drain pipe. The water outlet end of the inlet elbow is communicated with the control valve, and the water inlet end of the second siphon section is communicated with the control valve. The control valve is configured to, when the drainage pump is working, connect the water outlet end of the water inlet elbow with the water inlet end of the second siphon section so that the wastewater in the water inlet elbow is discharged through the second siphon section; when the drainage pump stops working, connect the water outlet end of the first siphon section with the water inlet end of the second siphon section so that the wastewater in the drainage pump is discharged through the second drain outlet, the first siphon section and the second siphon section in sequence.

2. The drainage system according to claim 1, characterized in that: The control valve includes a valve housing and a valve core. The valve core is located in the valve housing and moves relative to the valve housing. The valve housing has a first water inlet connector and a second water inlet connector. The first water inlet connector is connected to the water outlet end of the water inlet elbow, and the second water inlet connector is connected to the water outlet end of the first siphon section. The valve core is configured to move toward the first water inlet joint when the drainage pump stops working to close the first water inlet joint and connect the second water inlet joint with the water inlet end of the second siphon section; and to move toward the side away from the first water inlet joint when the drainage pump is working to close the second water inlet joint and connect the first water inlet joint with the water inlet end of the second siphon section.

3. The drainage system according to claim 2, characterized in that: The control valve also includes an elastic member, which is located in the valve housing. The valve core is located between the elastic member and the first water inlet connector. When the drainage pump is working, the valve core moves toward the elastic member to compress the elastic member. When the drainage pump stops working, the elastic member drives the valve core to move and reset.

4. The drainage system according to claim 3, characterized in that: The valve housing includes a shell body and shell covers located at both ends of the shell body. The elastic member is located in the shell cover on the side away from the drain pipe. The valve core is located in the shell body. When the drain pump is working, the valve core abuts against the end face of the shell cover that accommodates the elastic member. When the drain pump stops working, the valve core abuts against the end face of the shell cover away from the elastic member.

5. The drainage system according to any one of claims 2 to 4, characterized in that: The valve housing further comprises a first water outlet joint and a second water outlet joint, both of which are connected to the water inlet end of the second siphon section; The valve core is configured to, when the drainage pump is working, close the second water inlet joint and the second water outlet joint, and connect the first water inlet joint and the first water outlet joint; when the drainage pump stops working, close the first water inlet joint and the first water outlet joint, and connect the second water inlet joint and the second water outlet joint.

6. The drainage system according to claim 5, characterized in that: The first water inlet connector and the first water outlet connector are both located on a side of the valve housing close to the drain pipe, and the first water outlet connector is located between the first water inlet connector and the second water outlet connector.

7. The drainage system according to claim 5, characterized in that: The siphon assembly also includes a tee and a connecting elbow, the tee having a first end, a second end and a third end, the first end being connected to the first water outlet joint, the connecting elbow connecting the second water outlet joint and the second end, and the third end being connected to the water inlet end of the second siphon section.

8. The drainage system according to any one of claims 2 to 4, characterized in that: The second siphon section is located in the drain pipe; the siphon assembly further includes a drain elbow, which communicates with the valve housing and the water inlet end of the second siphon section.

9. The drainage system according to claim 8, characterized in that: The drainage pipe includes a first drainage section, a second drainage section, and a receiving pipe. The receiving pipe connects the first drainage section and the second drainage section. The inner diameter of the receiving pipe is larger than the inner diameters of the first drainage section and the second drainage section. The second siphon section is located in the second drainage section, the water inlet elbow and the drainage elbow are both inserted into the accommodating pipe through the pipe wall portion of the accommodating pipe, and the water inlet end of the water inlet elbow is located in the accommodating pipe.

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

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