Drainage system of washing machine and washing machine

Abstract

The utility model relates to the technical field of clothes processing equipment, in particular to a drainage system of a washing machine and the washing machine, and aims to solve the problem that an existing drainage system cannot meet diversified arrangement forms and task requirements of rollers. In order to achieve the purpose, the drainage system comprises a first drainage pipe, and a water inlet of the first drainage pipe is communicated with a first roller; a water inlet of the second drainage pipe is communicated with the second roller; a first water inlet of the three-way pipe is communicated with a water outlet of the first drainage pipe, a second water inlet of the three-way pipe is communicated with a water outlet of the second drainage pipe, and a water outlet of the three-way pipe is communicated to the outside of the washing machine; the first drainage pipe and the second drainage pipe are installed behind the two rollers respectively, water inlets of the first drainage pipe and the second drainage pipe are higher than water outlets of the first drainage pipe and the second drainage pipe respectively, and the water outlets of the first drainage pipe and the second drainage pipe are both higher than the three-way pipe. The drainage efficiency of the washing machine is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of clothing processing equipment technology, specifically providing a drainage system for a washing machine and a washing machine. Background Technology

[0002] In recent years, with the development of science and technology and the improvement of people's living standards, washing machines have long been a household appliance, becoming an indispensable part of home life. In order to meet the diverse needs of users, manufacturers are not limited to the research and development of single-drum washing machines, but have also developed twin-drum and multi-drum structures based on the single-drum structure, and have flexibly set the arrangement of multiple drums.

[0003] However, existing drainage systems are no longer able to meet the diverse arrangement and task requirements of the rollers, resulting in low drainage efficiency.

[0004] Therefore, a new technical solution is needed in this field to solve the above problems. Utility Model Content

[0005] The present invention aims to solve the above-mentioned technical problem, namely, that the existing drainage system can no longer meet the diverse arrangement and task requirements of the rollers, resulting in low drainage efficiency.

[0006] In a first aspect, the present invention provides a drainage system for a washing machine, the washing machine including a first drum and a second drum arranged side by side in a horizontal direction, the drainage system including: a first drain pipe, the inlet of the first drain pipe being connected to the first drum; a second drain pipe, the inlet of the second drain pipe being connected to the second drum; a three-way pipe, the first inlet of the three-way pipe being connected to the outlet of the first drain pipe, the second inlet of the three-way pipe being connected to the outlet of the second drain pipe, and the outlet of the three-way pipe being connected to the outside of the washing machine; the first drain pipe and the second drain pipe are respectively installed behind the two drums, and the inlets of the first drain pipe and the second drain pipe are respectively higher than the outlets of the first drain pipe and the second drain pipe, and the outlets of the first drain pipe and the second drain pipe are both higher than the three-way pipe.

[0007] In the preferred embodiment of the above drainage system, the drainage system further includes a main drainage pipe and a drainage pump. The main drainage pipe is arranged vertically and the inlet of the main drainage pipe is lower than the outlet of the main drainage pipe. The inlet of the drainage pump is connected to the outlet of the tee pipe, and the outlet of the drainage pump is connected to the inlet of the main drainage pipe.

[0008] In the preferred embodiment of the above drainage system, the drainage pump is further provided with a filter port and a filter, and the filter is detachably installed in the filter port.

[0009] In the preferred embodiment of the above drainage system, the filter is provided with an external thread structure, and the filter port is provided with an internal thread structure. The external thread and the internal thread cooperate to realize the threaded connection between the filter and the filter port.

[0010] In the preferred embodiment of the above drainage system, both the first drain pipe and the second drain pipe are configured as rubber hoses.

[0011] In the preferred embodiment of the above drainage system, the drainage system further includes a first drain valve and a second drain valve. The inlet of the first drain valve is connected to the outlet of the first drain pipe, and the outlet of the first drain valve is connected to the first inlet of the three-way pipe. The inlet of the second drain valve is connected to the outlet of the second drain pipe, and the outlet of the second drain valve is connected to the second inlet of the three-way pipe. Both the first drain valve and the second drain valve are communicatively connected to the controller of the washing machine and can be selectively opened under the control of the controller.

[0012] In the preferred embodiment of the above drainage system, the drainage system further includes a first one-way valve and a second one-way valve. The inlet of the first one-way valve is connected to the outlet of the first drain pipe, the outlet of the first one-way valve is connected to the first inlet of the three-way pipe, the inlet of the second one-way valve is connected to the outlet of the second drain pipe, and the outlet of the second one-way valve is connected to the second inlet of the three-way pipe.

[0013] In a second aspect, the present invention provides a washing machine, the washing machine including the above-described drainage system.

[0014] In the preferred embodiment of the washing machine described above, the drainage system is installed on the bottom plate of the washing machine and close to the back plate of the washing machine. An operation port is provided on the back plate, and the position of the operation port corresponds to the drainage system.

[0015] In the preferred embodiment of the washing machine described above, a cover plate is also provided on the operation port, and the cover plate is detachably installed on the operation port.

[0016] With the above technical solution adopted, the washing machine of this utility model includes a first drum and a second drum arranged side by side in a horizontal direction. The drainage system includes: a first drain pipe, the inlet of which is connected to the first drum; a second drain pipe, the inlet of which is connected to the second drum; and a T-connector, the first inlet of which is connected to the outlet of the first drain pipe, the second inlet of which is connected to the outlet of the second drain pipe, and the outlet of which is connected to the outside of the washing machine. The first drain pipe and the second drain pipe are respectively installed behind the two drums, and the inlets of the first drain pipe and the second drain pipe are respectively higher than the outlets of the first drain pipe and the second drain pipe, and the outlets of the first drain pipe and the second drain pipe are both higher than the T-connector. Through this arrangement, the drainage system is divided into two horizontally symmetrical paths to meet the drainage needs of the first drum and the second drum respectively. By setting a certain height difference between the inlet and outlet of each drain pipe, the drainage is smoother and the drainage efficiency is improved.

[0017] Furthermore, the drainage system of this utility model also includes a main drain pipe and a drain pump. The main drain pipe is arranged vertically, and its inlet is lower than its outlet. The inlet of the drain pump is connected to the outlet of the tee pipe, and the outlet of the drain pump is connected to the inlet of the main drain pipe. By adding a main drain pipe and a drain pump, a top-drainage structure for the washing machine is achieved, improving water flow rate and drainage efficiency. At the same time, it is not limited by terrain or height, making the placement of the washing machine more flexible.

[0018] Furthermore, the drain pump of this invention is also equipped with a filter port and a filter, the filter being detachably installed inside the filter port. The filter can remove foreign objects such as lint or debris from clothing, and its detachable installation facilitates cleaning or replacement.

[0019] Furthermore, the filter of this invention is provided with an external thread structure and an internal thread structure inside the filter port. The external thread and the internal thread cooperate to achieve a threaded connection between the filter and the filter port. This design makes the connection structure simple and reliable, allowing for convenient assembly and disassembly of the filter while ensuring the stability and sealing of the filter installation.

[0020] Furthermore, both the first and second drain pipes of this invention are made of rubber hoses. With this design, the rubber hoses can absorb the vibration of the roller through elastic deformation, ensuring that the drain pipes maintain a stable connection even during severe roller vibrations.

[0021] Furthermore, the drainage system of this utility model also includes a first drain valve and a second drain valve. The inlet of the first drain valve is connected to the outlet of the first drain pipe, and the outlet of the first drain valve is connected to the first inlet of the three-way pipe. The inlet of the second drain valve is connected to the outlet of the second drain pipe, and the outlet of the second drain valve is connected to the second inlet of the three-way pipe. Both the first and second drain valves are communicatively connected to the controller of the washing machine and can be selectively opened under the control of the controller. The first and second drain valves allow for independent control of the opening and closing of the first and second drain pipes. By selectively opening the first and second drain valves, different operating states of the first and second drums can be accommodated, while preventing cross-contamination of water between the two drums and avoiding mutual interference.

[0022] Furthermore, the drainage system of this utility model also includes a first one-way valve and a second one-way valve. The inlet of the first one-way valve is connected to the outlet of the first drain pipe, and the outlet of the first one-way valve is connected to the first inlet of the three-way pipe. The inlet of the second one-way valve is connected to the outlet of the second drain pipe, and the outlet of the second one-way valve is connected to the second inlet of the three-way pipe. This arrangement prevents wastewater discharged from one drum from flowing into the other drum, ensuring that the washing water inside the drum is not contaminated.

[0023] Furthermore, the washing machine provided by this utility model, based on the aforementioned drainage system, possesses the technical effects of the aforementioned drainage system. Compared to the washing machine before the improvement, the overall structure of the washing machine of this utility model is more reasonable. By optimizing the structure of the drainage system, it can better adapt to the drum arrangement of the washing machine, thereby improving the drainage efficiency of the washing machine.

[0024] Furthermore, the drainage system of this invention is installed on the bottom plate of the washing machine and close to the back panel. An operating port is provided on the back panel, and its position corresponds to the drainage system. By providing a separate operating port, the drainage system can be disassembled or repaired without completely removing the back panel, thus improving flexibility and convenience.

[0025] Furthermore, the operating port of this invention is also provided with a cover plate, which is detachably installed on the operating port. This design allows the cover plate to seal the operating port, preventing the entry of foreign objects and providing both protection and aesthetic appeal. Attached Figure Description

[0026] The preferred embodiments of this utility model are described below with reference to the accompanying drawings, in which:

[0027] Figure 1 This is a schematic diagram of the drainage system of this utility model;

[0028] Figure 2 This is a schematic diagram of the structure of the back plate of this utility model.

[0029] List of reference numerals in the attached diagram:

[0030] 1. Drainage system; 11. First drain pipe; 12. Second drain pipe; 13. Tee pipe; 14. Main drain pipe; 15. Drain pump; 16. Filter; 171. First drain valve; 172. Second drain valve; 2. Back plate; 21. Through hole; 22. Cleaning port; 23. Operation port. Detailed Implementation

[0031] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0032] It should be noted that in the description of this utility model, terms such as "inner," "outer," and "bottom," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. This is merely for ease of description and does not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0033] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0034] As indicated in the background art, existing drainage systems are no longer adequate to meet the diverse arrangement and operational needs of washing drums, resulting in low drainage efficiency. This invention provides a drainage system and washing machine adapted to a horizontally arranged dual-drum structure. The system includes a first drain pipe and a second drain pipe connecting the two drums, a tee pipe connected to both drain pipes, a drain pump, and a main drain pipe. It also includes a first drain valve and a second drain valve located on two separate waterways. By rationally controlling the opening times of the two drain valves, wastewater from the two drums is discharged in staggered shifts. This ensures drainage efficiency while preventing cross-contamination between the two drums.

[0035] For example, in order to meet the diverse needs of users, existing drum washing machines are no longer limited to single-drum structures. They have also developed twin-drum and multi-drum structures based on the single-drum structure, and flexibly set the arrangement of multiple drums, such as horizontal arrangement, vertical arrangement or pyramid arrangement, etc.

[0036] As the arrangement of drums and users' needs become more diverse, such as in horizontally arranged twin-drum washing machines, where the two drums can operate relatively independently, drainage can be carried out simultaneously or asynchronously. However, existing drainage systems can no longer adequately meet the drainage requirements of washing machines, resulting in low drainage efficiency.

[0037] Based on this, such as Figure 1 and Figure 2 As shown, the drainage system 1 provided by this utility model can adapt to a horizontally arranged double-drum structure. Specifically, the drainage system 1 is set on the bottom plate behind the two drums (not shown in the figure) and close to the back panel 2 of the washing machine. It includes: a first drain pipe 11, a second drain pipe 12, a three-way pipe 13, and a main drain pipe 14. The first drain pipe 11 and the second drain pipe 12 are located directly behind the first drum and the second drum, respectively. The inlet of the first drain pipe 11 is connected to the drain outlet of the first drum, and the inlet of the second drain pipe 12 is connected to... The drain outlet of the second roller is connected; the first drain pipe 11 and the second drain pipe 12 converge through a rear-mounted three-way pipe 13. The three-way pipe 13 includes a first inlet and a second inlet located on both sides, and an outlet located at the rear. The first inlet of the three-way pipe 13 is connected to the outlet of the first drain pipe 11, the second inlet of the three-way pipe 13 is connected to the outlet of the second drain pipe 11, and the outlet of the three-way pipe 13 is connected to the rear main drain pipe 14, thereby allowing the wastewater discharged from the first and second rollers to be directed into the main drain pipe 14. The inlet of the main drain pipe 14 is connected to the outlet of the three-way pipe 13, and the outlet of the main drain pipe 14 passes through the back plate 2 and connects to the outside of the machine body, allowing it to connect to the sewer, so that the wastewater discharged from the two rollers can be directed into the sewer.

[0038] Preferably, the inlets of the first drain pipe 11 and the second drain pipe 12 are higher than the outlets of the first drain pipe 11 and the second drain pipe 12, respectively, and the outlets of the first drain pipe 11 and the second drain pipe 12 are both higher than the tee pipe 13, so that the height of the drainage system 1 gradually decreases from front to back, so as to facilitate the rapid flow of wastewater and prevent wastewater from accumulating in the drainage system 1.

[0039] Relying solely on gravity drainage requires ensuring that the height of the entire drainage path gradually decreases. This is easily limited by terrain conditions. For example, when facing a wall with a certain height, drainage difficulties or even backflow of wastewater may occur, reducing the flexibility of washing machine placement and causing a lot of inconvenience to users.

[0040] Therefore, as Figure 1 and Figure 2 As shown, the drainage system 1 of this utility model adopts a top drainage form, that is, a drainage pump 15 is installed between the main drainage pipe 14 and the tee pipe 13, so that the inlet of the drainage pump 15 is connected to the outlet of the tee pipe 13, and the outlet of the drainage pump 15 is connected to the inlet of the main drainage pipe 14. When draining, the wastewater can be pumped out by the drainage pump 15, so that the flow of wastewater no longer relies on the effect of gravity. With this setting, the height of the outlet of the main drainage pipe 14 is not limited by height and can be flexibly set in any position.

[0041] Preferably, the main drain pipe 14 extends vertically so that its outlet extends to the middle height of the back plate 2. Correspondingly, a through hole 21 is provided at the middle height of the back plate 2 so that the main drain pipe 14 can pass through. This allows the main drain pipe 14 to be flexibly connected to the ground drain or wall drain without affecting the drainage of wastewater, thus improving the flexibility of use.

[0042] More preferably, the end of the drain main pipe 14 is provided with a first snap-fit ​​structure, and correspondingly, a second snap-fit ​​structure is provided on the through hole 21. The drain main pipe 14 is fixed in the through hole 21 by the snap-fit ​​cooperation of the first snap-fit ​​structure and the second snap-fit ​​structure.

[0043] Meanwhile, since the suction force of the drainage pump 15 is much greater than that of gravity, it can effectively increase the flow rate and volume of wastewater in the pipeline, thereby improving drainage efficiency.

[0044] Because clothes will shed lint or debris during washing and spin-drying, these foreign objects will be sucked into the drain pump 15 after being discharged from the drum along with the wastewater, increasing the risk of damage to the drain pump 15. Therefore, it is necessary to filter the wastewater before it enters the drain pump 15 to remove foreign objects and impurities.

[0045] Preferably, such as Figure 1 and Figure 2 As shown, the drainage pump 15 of this utility model is also provided with a filter port and a filter 16, and the filter 16 is detachably installed in the filter port. While filtering out impurities, it also makes it convenient for users to clean or replace the filter 16 regularly.

[0046] It should be noted that, in practical applications, those skilled in the art can flexibly configure the connection structure between the filter 16 and the filter port, such as screw connection, snap connection, etc. Such flexible adjustments and changes do not deviate from the principles and scope of this utility model and should all be limited to the protection scope of this utility model. This application preferably adopts a screw connection structure, that is, an external thread structure is provided on the filter 16, and an internal thread structure is provided in the filter port. The screw connection between the filter 16 and the filter port is achieved through the cooperation of the external and internal threads, making the connection structure simple and reliable. While enabling convenient disassembly and assembly of the filter 16, it also ensures the stability and sealing of the filter 16 installation.

[0047] More preferably, the filter port faces the back plate 2, and a cleaning port 22 is provided on the back plate 2 at a position directly opposite the filter port, through which the filter 16 can be quickly cleaned and replaced.

[0048] Because the roller will vibrate violently during operation, an elastic connection is usually used between the roller and the machine body to absorb the vibration in order to prevent the vibration from being transmitted to the machine body. The drainage system 1 is fixed to the machine body and forms a rigid connection with the machine body. This causes the roller to move relative to the drainage system 1 during vibration, which can cause the connection to loosen or fall off.

[0049] To address this issue, both the first drain pipe 11 and the second drain pipe 12 in this application are made of rubber hoses. The elastic deformation of the rubber hoses can accommodate the relative movement and installation tolerances between the two, ensuring the stability and sealing of the connection between the drainage system 1 and the roller.

[0050] Since the two drums and the first drain pipe 11 and the second drain pipe 12 are arranged horizontally with no height difference, and the washing modes and progress of the two drums are relatively independent, wastewater discharged from either drum may flow into the other drum through the three-way pipe 13, causing the washing water in the other drum to be contaminated.

[0051] Therefore, in the first preferred embodiment of this application, as Figure 1 As shown, the drainage system 1 also includes a first drain valve 171 and a second drain valve 172. The inlet of the first drain valve 171 is connected to the outlet of the first drain pipe 11, and the outlet of the first drain valve 171 is connected to the first inlet of the three-way pipe 13. The inlet of the second drain valve 172 is connected to the outlet of the second drain pipe 12, and the outlet of the second drain valve 172 is connected to the second inlet of the three-way pipe 13. Both the first drain valve 171 and the second drain valve 172 are connected to the controller of the washing machine and can be opened selectively under the unified control of the controller.

[0052] The first drain valve 171 and the second drain valve 172 can be used to uniformly control the opening and closing of the first drain pipe 11 and the second drain pipe 12. The drainage timing can be reasonably allocated by the operating status of the two rollers to prevent the two drain valves from opening at the same time and causing cross-flow. That is, by controlling the first drain valve 171 and the second drain valve 172 to open one of them to match the different operating statuses of the first roller and the second roller, the two rollers are prevented from connecting and causing cross-flow, and the two rollers are avoided from interfering with each other.

[0053] In a second preferred embodiment of this application, the drainage system 1 further includes a first one-way valve and a second one-way valve. The inlet of the first one-way valve is connected to the outlet of the first drain pipe 11, and the outlet of the first one-way valve is connected to the first inlet of the three-way pipe 13. The inlet of the second one-way valve is connected to the outlet of the second drain pipe 12, and the outlet of the second one-way valve is connected to the second inlet of the three-way pipe 13. This arrangement prevents wastewater discharged from one drum from flowing into the other drum, ensuring that the washing water inside the drum is not contaminated. This solution has a simple structure and does not require computer control. Preferably, the diameter of the main drain pipe 14 is set to twice that of the first drain pipe 11 and the second drain pipe 12 to achieve simultaneous drainage from both drums.

[0054] Furthermore, the washing machine provided by this utility model, based on the aforementioned drainage system 1, possesses the technical effects of the aforementioned drainage system 1. Compared to the washing machine before the improvement, the overall structure of the washing machine of this utility model is more reasonable. By optimizing the structure of the drainage system 1, it can better adapt to the drum arrangement of the washing machine and improve the drainage efficiency of the washing machine.

[0055] Preferably, such as Figure 2 As shown, the drainage system 1 is installed on the bottom plate of the washing machine and close to the back panel 2. An operation port 23 is also provided on the back panel 2, its position corresponding to that of the drainage system 1, allowing the drainage system 1 to be exposed for easy disassembly, assembly, or maintenance by the user. By providing a separate operation port 23, users can perform maintenance on the drainage system 1 without completely disassembling the back panel 2, further enhancing the flexibility and convenience of use.

[0056] More preferably, a detachable cover plate is also provided on the operating buckle. The cover plate can block the operating port 23, which not only plays a protective role in preventing the entry of foreign objects, but also improves the external aesthetics.

[0057] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A drainage system (1) for a washing machine, the washing machine comprising a first drum and a second drum arranged side by side in a horizontal direction, characterized in that, The drainage system (1) includes: The first drain pipe (11) has its inlet connected to the first roller. The second drain pipe (12) has its inlet connected to the second roller; The three-way pipe (13) has its first inlet connected to the outlet of the first drain pipe (11), its second inlet connected to the outlet of the second drain pipe (12), and its outlet connected to the outside of the washing machine. The first drain pipe (11) and the second drain pipe (12) are respectively installed behind the two rollers, and the inlets of the first drain pipe (11) and the second drain pipe (12) are higher than the outlets of the first drain pipe (11) and the second drain pipe (12), respectively. The outlets of the first drain pipe (11) and the second drain pipe (12) are both higher than the three-way pipe (13).

2. The drainage system (1) according to claim 1, characterized in that, The drainage system (1) further includes a main drainage pipe (14) and a drainage pump (15). The main drainage pipe (14) is arranged vertically and the inlet of the main drainage pipe (14) is lower than the outlet of the main drainage pipe (14). The inlet of the drainage pump (15) is connected to the outlet of the three-way pipe (13), and the outlet of the drainage pump (15) is connected to the inlet of the main drainage pipe (14).

3. The drainage system (1) according to claim 2, characterized in that, The drain pump (15) is also provided with a filter port and a filter (16), the filter (16) being detachably installed in the filter port.

4. The drainage system (1) according to claim 3, characterized in that, The filter (16) is provided with an external thread structure, and the filter port is provided with an internal thread structure. The external thread and the internal thread cooperate to realize the threaded connection between the filter (16) and the filter port.

5. The drainage system (1) according to claim 1, characterized in that, Both the first drain pipe (11) and the second drain pipe (12) are made of rubber hoses.

6. The drainage system (1) according to claim 2, characterized in that, The drainage system (1) further includes a first drain valve (171) and a second drain valve (172). The inlet of the first drain valve (171) is connected to the outlet of the first drain pipe (11), and the outlet of the first drain valve (171) is connected to the first inlet of the three-way pipe (13). The inlet of the second drain valve (172) is connected to the outlet of the second drain pipe (12), and the outlet of the second drain valve (172) is connected to the second inlet of the three-way pipe (13). Both the first drain valve (171) and the second drain valve (172) are connected to the controller of the washing machine and can be opened selectively under the control of the controller.

7. The drainage system (1) according to claim 2, characterized in that, The drainage system (1) further includes a first check valve and a second check valve. The inlet of the first check valve is connected to the outlet of the first drain pipe (11), the outlet of the first check valve is connected to the first inlet of the three-way pipe (13), the inlet of the second check valve is connected to the outlet of the second drain pipe (12), and the outlet of the second check valve is connected to the second inlet of the three-way pipe (13).

8. A washing machine, characterized in that, The washing machine includes the drainage system (1) according to any one of claims 1 to 7.

9. The washing machine according to claim 8, characterized in that, The drainage system (1) is installed on the bottom plate of the washing machine and close to the back plate (2) of the washing machine. The back plate (2) is provided with an operation port (23), and the position of the operation port (23) corresponds to the drainage system (1).

10. The washing machine according to claim 9, characterized in that, The operating port (23) is also provided with a cover plate, which is detachably installed on the operating port (23).

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