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, the drainage pump is provided with a water inlet, a first drainage port and a second drainage port, the siphon comprises a first siphon section and a second siphon section which are communicated, the drainage pump is provided with a first control valve, and the first control valve is configured to close the second drainage port when the drainage pump works and close the second drainage port when the drainage pump stops working. The second drainage opening is opened, the second siphon section is located in the drainage pipe, the second siphon section is provided with an opening and a second control valve, and the second control valve is configured to open the opening when the drainage pump works and close the opening when the drainage pump stops working. Thus, after the drainage pump stops working, residual wastewater in the drainage pump and wastewater flowing back from the drainage pipe can be completely discharged through the siphon, and then no wastewater is left in the drainage pump, so that the drainage pump is dry, bacteria are not prone to breeding, and peculiar smells caused by mildewing are 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] 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, 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 pipe includes a first siphon section and a second siphon section that are connected to each other, the water inlet end of the first siphon section is connected to the second drain outlet, and the drain pump is provided with a first control valve, the first control valve being configured to close the second drain outlet when the drain pump is operating and to open the second drain outlet when the drain pump stops operating;

[0008] The second siphon section is located in the drain pipe and has an opening and a second control valve. The second control valve is configured to open the opening when the drain pump is working to connect the drain pipe with the second siphon section, and close the opening when the drain pump stops working.

[0009] In some technical solutions of the above-mentioned drainage system, the second control valve includes a first valve plate, one end of which is rotatably connected to one side of the opening. The first valve plate is configured to cover the opening to close the opening when the drainage pump stops working, and to rotate toward the drainage direction of the drain pipe to open the opening when the drainage pump is working.

[0010] In some technical solutions of the above drainage system, the second control valve further includes a water retaining edge connected to the other end of the first valve plate, and the water retaining edge is inclined toward a side away from the second siphon section.

[0011] In some technical solutions of the above-mentioned drainage system, the second control valve further includes a limiting column, which is connected to the side of the water retaining edge away from the first valve plate, and the limiting column is inclined toward the side away from the second siphon section.

[0012] In some technical solutions of the above-mentioned drainage system, the first control valve includes a second valve plate, which is located on the side of the second drain outlet close to the first siphon section. One end of the second valve plate is rotatably connected to the circumference of the second drain outlet, and the second valve plate rotates relative to the second drain outlet to open or close the second drain outlet.

[0013] In some technical solutions of the above-mentioned drainage system, the first control valve also includes a valve housing, which connects the second drain port and the water inlet end of the first siphon section, the second valve plate is located in the valve housing, and one end of the second valve plate is rotatably connected to the inner wall of the valve housing.

[0014] In some technical solutions of the above-mentioned drainage system, the first control valve also includes a limit block, which is connected to the inner wall of the valve housing. The limit block is located on the side of the valve housing close to the first siphon section. When the drainage pump stops working, the limit block abuts against the second valve plate.

[0015] In some technical solutions of the above drainage system, the siphon pipe further 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 drainage pipe includes a first drainage section, a second drainage section and an installation pipe, the installation pipe connects the first drainage section and the second drainage section, 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.

[0017] 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.

[0018] The present application provides a drainage system and washing equipment, the drainage system including a drainage pump, a drainage pipe, and a siphon pipe. The drainage pump has a water inlet, a first drainage port, and a second drainage port. The siphon pipe includes a first siphon section and a second siphon section that are connected. The drainage pump has a first control valve. The second siphon section is located in the drainage pipe. The second siphon section has an opening and a second control valve. When the drainage pump is operating, the drainage pump drives wastewater in the drainage pump to be discharged through the drainage pipe. At the same time, the second control valve controls the opening to open, and some wastewater in the drainage pipe is discharged through the second siphon section. When the drainage pump stops operating, the second control valve controls the opening to close, generating negative pressure in the second siphon section. The first control valve controls the second drainage port to open. The second drainage port is located at the bottom of the drainage pump, so that the second siphon section can attract all wastewater in the drainage pump and discharge it through the first siphon section and the second siphon section in sequence. 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

[0019] 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.

[0020] Figure 1 A schematic diagram of the structure of some washing equipment provided in the embodiments of the present application;

[0021] Figure 2 for Figure 1 Schematic diagram of the structure of the drainage pump when the drainage pump is working;

[0022] Figure 3 for Figure 1 Schematic diagram of the drainage pump structure when the drainage pump stops working;

[0023] Figure 4 for Figure 1 Schematic diagram of the structure of part of the second siphon section and part of the drainage pipe when the drainage pump is working;

[0024] Figure 5 for Figure 4Cross-sectional view of AA;

[0025] Figure 6 for Figure 1 Schematic diagram of the structure of part of the second siphon section and part of the drainage pipe when the drainage pump stops working;

[0026] Figure 7 for Figure 6 Cross-sectional view of the middle BB;

[0027] Figure 8 for Figure 1 Schematic diagram of the structure of the connecting elbow and installation pipe.

[0028] Description of reference numerals:

[0029] 100-drain pump;

[0030] 110-water inlet; 120-first drain outlet; 130-second drain outlet;

[0031] 140 - first control valve; 141 - valve housing; 142 - second valve plate; 143 - limit block;

[0032] 200 drainage pipe; 210-first drainage section; 220-installation pipe; 230-second drainage section;

[0033] 310 - first siphon section; 320 - second siphon section; 321 - opening;

[0034] 322 - second control valve; 3221 - first valve disc; 3222 - water retaining edge; 3223 - limit column; 3224 - hinge shaft; 330 - connecting elbow;

[0035] 400-box; 500-outer tube; 600-inner tube; 700-water pipe.

[0036] 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

[0037] 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.

[0038] 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.

[0039] 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.

[0040] 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.

[0041] 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.

[0042] Unless otherwise stated, the term "plurality" means two or more.

[0043] 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.

[0044] Based on this, an embodiment of the present application provides a drainage system, including a drainage pump, a drainage pipe, and a siphon pipe. The drainage pump has a water inlet, a first drainage port, and a second drainage port. The siphon pipe includes a first siphon section and a second siphon section that are connected to each other. The drainage pump has a first control valve. The second siphon section is located in the drainage pipe. The second siphon section has an opening and a second control valve. When the drainage pump is working, the drainage pump drives the wastewater in the drainage pump to be discharged through the drainage pipe. At the same time, the second control valve controls the opening to open, and some of the wastewater in the drainage pipe is discharged through the second siphon section. When the drainage pump stops working, the second control valve controls the opening to close, generating negative pressure in the second siphon section. The first control valve controls the second drainage port to open. The second drainage port is located at the bottom of the drainage pump, so that the second siphon section can attract all the wastewater in the drainage pump to be discharged through the first siphon section and the second siphon section in sequence. 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.

[0045] The embodiments of the present application are described below with reference to the accompanying drawings.

[0046] Reference Figures 1 to 8 As 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, the drainage pump 100 having 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.

[0047] The siphon tube includes a first siphon section 310 and a second siphon section 320 that are connected to each other. The water inlet end of the first siphon section 310 is connected to the second drain outlet 130. The drain pump 100 is provided with a first control valve 140. The first control valve 140 is configured to close the second drain outlet 130 when the drain pump 100 is working, and to open the second drain outlet 130 when the drain pump 100 stops working.

[0048] The second siphon section 320 is located in the drain pipe 200 and has an opening 321 and a second control valve 322. The second control valve 322 is configured to open the opening 321 when the drain pump 100 is working to connect the drain pipe 200 with the second siphon section 320, and close the opening 321 when the drain pump 100 stops working.

[0049] Part of the drain pipe 200 is parallel to the second siphon section 320. Both the drain pipe 200 and the second siphon section 320 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 second siphon section 320 is located at the midpoint of the inverted U-shaped section of the second siphon section 320. 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 inability of the drain pump 100 to drive the wastewater in the drain pump 100 to be discharged after air enters the drain pump 100. 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.

[0050] It is understood that the inner diameter of the siphon tube is smaller than that of the drain pipe 200. The inner diameter of the siphon tube 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 can drain water through siphoning, and that all wastewater in the drain pump 100 is discharged through the siphon tube 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.

[0051] 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 .

[0052] The second siphon section 320 is disposed in the drain pipe 200 so that the drain pipe 200 can protect the second siphon section 320 from damage. The second siphon section 320 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.

[0053] In some embodiments, the water outlet end of the second siphon section 320 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 .

[0054] Specifically, when the drain pump 100 is operating, the first control valve 140 controls the second drain port 130 to be closed, and the drain pump 100 drives the wastewater in the drain pump 100 to be discharged sequentially through the first drain port 120 and the drain pipe 200. At the same time, the second control valve 322 controls the opening 321 to be open, and the second siphon section 320 is located in the drain pipe 200, so that some of the wastewater in the drain pipe 200 can enter the second siphon section 320 through the opening 321 and continue to be discharged through the second siphon section 320. In this way, water is simultaneously drained through the drain pipe 200 and the second siphon section 320, avoiding the impact of the second siphon section 320 on the drainage system's drainage efficiency.

[0055] When the drain pump 100 stops working, the second control valve 322 controls the opening 321 to be closed. At this time, due to the large inner diameter of the drain pipe 200, 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 into the drain pump 100 under the action of gravity. The inner diameter of the second siphon section 320 is small, the amount of wastewater in the second siphon section is small, and the gravity of the wastewater is small. The molecular tension of the wastewater in the second siphon section 320 is greater than the gravity of the wastewater. The wastewater in the second siphon section 320 will continue to be discharged through the highest point, thereby generating negative pressure in the second siphon section 320, that is, triggering the siphon phenomenon. At the same time, the first control valve 140 controls the second drain port 130 to be opened, so that the negative pressure generated in the second siphon section 320 can attract the wastewater in the drain pump 100 to be discharged in sequence through the second drain port 130, the first siphon section 310, and the second siphon section 320.

[0056] 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.

[0057] The drainage system provided in the embodiment of the present application is such that when the drainage pump 100 is working, the drainage pump 100 drives the wastewater in the drainage pump 100 to be discharged through the drainage pipe 200, and at the same time, the second control valve 322 controls the opening 321 to be opened, and part of the wastewater in the drainage pipe 200 is discharged through the second siphon section 320. When the drainage pump 100 stops working, the second control valve 322 controls the opening 321 to be closed, and negative pressure is generated in the second siphon section 320. The first control valve 140 controls the second drain port 130 to be opened. The second drain port 130 is located at the bottom of the drainage pump 100, so that the second siphon section 320 can attract all the wastewater in the drainage pump 100 to be discharged through the first siphon section 310 and the second siphon section 320 in sequence. 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, 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.

[0058] Reference Figure 4 、 Figure 5 、 Figure 6 and Figure 7 As shown, in some embodiments, the second control valve 322 includes a first valve disc 3221, one end of which is rotatably connected to one side of the opening 321. The first valve disc 3221 is configured to rotate toward the drainage direction of the drain pipe 200 to open the opening 321 when the drain pump 100 is working, and to cover the opening 321 to close the opening 321 when the drain pump 100 stops working.

[0059] The drainage direction of the drain pipe 200 is from the water inlet end of the drain pipe 200 to the water outlet end of the drain pipe 200 , and the water inlet end of the drain pipe 200 is connected to the first drain port 120 .

[0060] Illustratively, the second control valve 322 further includes a hinge shaft 3224 , and one end of the first valve plate 3221 is hinged to one side of the opening 321 via the hinge shaft 3224 .

[0061] The hinge shaft 3224 is connected to the outer wall of the second siphon section 320, and the hinge shaft 3224 is located on the rear side of the opening 321 along the drainage direction of the drain pipe 200, so that the first valve disc 3221 can rotate relative to the hinge shaft 3224, that is, when the first valve disc 3221 rotates toward the drainage direction of the drain pipe 200 to open the opening 321, the opening 321 is opposite to the drainage direction of the drain pipe 200, so that the wastewater in the drain pipe 200 flows along the drainage direction of the drain pipe 200 and enters the second siphon section 320 through the opening 321.

[0062] It can be understood that the first valve plate 3221 is arc-shaped to match the shape of the opening 321 .

[0063] Reference Figure 5 and Figure 7 As shown, in a specific implementation, the second control valve 322 further includes a water retaining edge 3222 , which is connected to the other end of the first valve plate 3221 , and the water retaining edge 3222 is inclined toward a side away from the second siphon section 320 .

[0064] Exemplarily, the water retaining edge 3222 is connected to the end of the first valve disc 3221 away from the hinge shaft 3224, and is inclined relative to the first valve disc 3221. The water retaining edge 3222 faces the side away from the second siphon section 320. The water retaining edge 3222 is an arc-shaped plate.

[0065] Specifically, before the washing machine drains water, the first valve disc 3221 covers the opening 321. When the drain pump 100 begins draining, the drain pump 100 applies pressure to the wastewater in the drain pipe 200. When some of the wastewater in the drain pipe 200 contacts the water retaining edge 3222, pressure is applied to the water retaining edge 3222, pushing the water retaining edge 3222 to rotate in the drainage direction of the drain pipe 200. Simultaneously, the water retaining edge 3222 drives the first valve disc 3221 to rotate relative to the hinge shaft 3224 in the drainage direction of the drain pipe 200, thereby opening the opening 321. When the drain pump 100 stops draining, part of the wastewater in the drain pipe 200 flows back. The backflowing wastewater pushes the first valve disc 3221 to rotate relative to the hinge shaft 3224 in the opposite direction of the drainage direction of the drain pipe 200, so that the first valve disc 3221 covers the opening 321, thereby closing the opening 321. At the same time, the negative pressure generated in the second siphon section 320 will attract the first valve disc 3221, thereby ensuring that the opening 321 is closed.

[0066] In this way, by setting the water retaining edge 3222, when the drainage pump 100 is working, the wastewater in the drainage pipe 200 pushes the water retaining edge 3222 to rotate, and the water retaining edge 3222 drives the first valve plate 3221 to rotate to open the opening 321, thereby making it simple and convenient to open the opening 321.

[0067] Reference Figure 5 As shown, in some embodiments, the second control valve 322 further includes a limiting column 3223 , which is connected to the side of the water retaining edge 3222 away from the first valve plate 3221 , and the limiting column 3223 is inclined toward the side away from the second siphon section 320 .

[0068] Exemplarily, the limiting column 3223 is connected to the middle area of ​​the water retaining edge 3222.

[0069] Specifically, by setting a limit column 3223, when the first valve disc 3221 opens the opening 321, the limit column 3223 abuts against the inner wall of the drain pipe 200 to limit the rotation angle of the first valve disc 3221, thereby preventing the first valve disc 3221 from rotating at a large angle and causing the first valve disc 3221 to be difficult to reset.

[0070] It can be understood that the limiting column 3223 is a cylinder to prevent the limiting column 3223 from obstructing the flow of wastewater in the drain pipe 200.

[0071] Reference Figure 2 and Figure 3 As shown, in some embodiments, the first control valve 140 includes a second valve disc 142, which is located on the side of the second drain outlet 130 close to the first siphon section 310, and one end of the second valve disc 142 is rotatably connected to the circumferential side of the second drain outlet 130. The second valve disc 142 rotates relative to the second drain outlet 130 to open or close the second drain outlet 130.

[0072] Illustratively, the second valve disc 142 is located outside the drain pump 100 , and one end of the second valve disc 142 is hinged to the peripheral side of the second drain port.

[0073] Specifically, when the drain pump 100 is operating, the negative pressure within the drain pump 100 draws the second valve disc 142 over the second drain outlet 130, thereby closing the second drain outlet 130. When the drain pump 100 stops operating, the pressure within the drain pump 100 becomes positive, and the drain pump 100 cannot draw the second valve disc 142 closed. Due to the effects of gravity and the negative pressure of the second siphon section 320, the second valve disc 142 rotates relative to the second drain outlet 130, thereby opening the second drain outlet 130. Simultaneously, when the drain pump 100 is operating, wastewater enters the second siphon section 320 and simultaneously enters the first siphon section 310. Within the first siphon section 310, wastewater flows from the outlet to the inlet. This wastewater flowing toward the inlet of the first siphon section 310 also forces the second valve disc 142 to close, thereby ensuring a tighter and more reliable closure of the second valve disc 142.

[0074] Reference Figure 2 and Figure 3 As shown, in some embodiments, the first control valve 140 further includes a valve housing 141, which connects the second drain port 130 with the water inlet of the first siphon section 310. A second valve disc 142 is located within the valve housing 141, and one end of the second valve disc 142 is rotatably connected to the inner wall of the valve housing 141.

[0075] One end of the valve housing 141 is inserted into the second drain port 130, and the water inlet end of the first siphon section 310 is sleeved onto the other end of the valve housing 141, thereby connecting the second drain port 130 with the water inlet end of the first siphon section 310 through the valve housing 141. The valve housing 141 facilitates the rotatable connection between the second valve disc 142 and the circumferential side of the second drain port 130.

[0076] In some embodiments, the existing drain pump 100 has a flow-through joint, and the valve housing 141 can use the flow-through joint. In this way, the present application can be implemented without changing the structure of the existing drain pump 100.

[0077] Reference Figure 2 and Figure 3 As shown, in a specific implementation, the first control valve 140 also includes a limit block 143, which is connected to the inner wall of the valve housing 141. The limit block 143 is located on the side of the second valve plate 142 close to the first siphon section 310. When the drainage pump 100 stops working, the limit block 143 abuts against the second valve plate 142.

[0078] Specifically, by setting a limit block 143, the limit block 143 abuts against the second valve disc 142 to limit the angle between the second valve disc 142 and the valve housing 141, thereby preventing the angle between the second valve disc 142 and the valve housing 141 from being too small to make it difficult to close the second drain port 130.

[0079] Illustratively, the limiting block 143 has an abutting surface, which may be a plane. When the drainage pump 100 stops working, the second valve plate 142 abuts against the abutting surface.

[0080] Reference Figure 1 and Figure 8 As shown, in some embodiments, the siphon pipe further includes a connecting elbow 330 , which connects the water outlet end of the first siphon section 310 with the water inlet end of the second siphon section 320 .

[0081] Specifically, the first siphon section 310 is located outside the drain pipe 200, and the second siphon section 320 is located inside the drain pipe 200. By providing a connecting elbow 330, the first siphon section 310 and the second siphon section 320 are connected more conveniently.

[0082] Reference Figure 2 and Figure 8 As shown, in a specific implementation, the drain pipe 200 includes a first drain section 210, a second drain section 230 and an installation pipe 220. The installation pipe 220 connects the first drain section 210 and the second drain section 230. The second siphon section 320 is located in the second drain section 230. The connecting elbow 330 is inserted into the installation pipe 220 through the pipe wall of the installation pipe 220.

[0083] 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 330 and the installation pipe 220 is more convenient, and it is convenient to connect the second siphon section 320 and the connecting elbow 330, thereby making the installation of the drainage system simpler and more convenient, and the installation efficiency is higher.

[0084] In some embodiments, the installation pipe 220 and the connecting elbow 330 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 310, and the second siphon section 320 can be sequentially connected to the residual water drainage assembly, making installation simple, convenient, and efficient.

[0085] Based on the above embodiment, this embodiment provides a washing device, including a device body and a drainage system connected to the device body.

[0086] The structure of the drainage system has been described in detail in the above embodiments and will not be repeated here.

[0087] 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.

[0088] It can be understood that the water outlet end of the drain pipe 200 and the water outlet end of the second siphon section 320 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 320 can be extended to a floor drain or a container to discharge the wastewater or reuse it.

[0089] In the washing machine 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, some of the wastewater in the drain pipe 200 is discharged through the second siphon section 320. When the drain pump 100 stops operating, the second siphon section 320 draws all the wastewater in the drain pump 100 and sequentially discharges it through the first siphon section 310 and the second siphon section 320. This ensures that no wastewater remains in the drain pump 100, thereby preventing the wastewater in the drain pump 100 from evaporating and generating water vapor. This allows the space between the outer drum 500 and the inner drum 600 of the upper drainage washing machine to be 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.

[0090] 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 pipe, the drainage pump having a water inlet, a first drainage outlet and a second drainage outlet, the water inlet being connected to the water storage chamber of the washing device, 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; The siphon pipe includes a first siphon section and a second siphon section that are connected to each other, the water inlet end of the first siphon section is connected to the second drain outlet, and the drain pump is provided with a first control valve, the first control valve being configured to close the second drain outlet when the drain pump is operating and to open the second drain outlet when the drain pump stops operating; The second siphon section is located in the drain pipe and has an opening and a second control valve. The second control valve is configured to open the opening when the drain pump is working to connect the drain pipe with the second siphon section, and close the opening when the drain pump stops working.

2. The drainage system according to claim 1, characterized in that: The second control valve includes a first valve plate, one end of which is rotatably connected to one side of the opening. The first valve plate is configured to cover the opening to close the opening when the drainage pump stops working, and to rotate toward the drainage direction of the drain pipe to open the opening when the drainage pump is working.

3. The drainage system according to claim 2, characterized in that: The second control valve further includes a water retaining edge connected to the other end of the first valve plate, and the water retaining edge is inclined toward a side away from the second siphon section.

4. The drainage system according to claim 3, characterized in that: The second control valve further includes a limiting column connected to a side of the water retaining edge away from the first valve plate, and the limiting column is inclined toward a side away from the second siphon section.

5. The drainage system according to claim 1, characterized in that: The first control valve includes a second valve disc, which is located on the side of the second drain outlet close to the first siphon section. One end of the second valve disc is rotatably connected to the circumference of the second drain outlet. The second valve disc rotates relative to the second drain outlet to open or close the second drain outlet.

6. The drainage system according to claim 5, characterized in that: The first control valve further includes a valve housing, which connects the second drain port and the water inlet end of the first siphon section. The second valve disc is located in the valve housing, and one end of the second valve disc is rotatably connected to the inner wall of the valve housing.

7. The drainage system according to claim 6, characterized in that: The first control valve further includes a limit block connected to the inner wall of the valve housing. The limit block is located on a side of the valve housing close to the first siphon section. When the drainage pump stops working, the limit block abuts against the second valve plate.

8. The drainage system according to any one of claims 1 to 7, characterized in that: The siphon pipe further includes a connecting elbow connecting the water outlet of the first siphon section and the water inlet 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 an installation pipe. The installation pipe connects the first drainage section and the second drainage section. The second siphon section is located in the second drainage section. The connecting elbow is inserted into the installation pipe through the pipe wall of the installation pipe.

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.

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