Emergency drainage device and washing and drying all-in-one machine

Abstract

The utility model discloses an emergency drainage device and a washing and drying all-in-one machine, the drainage device comprises a main drainage box, an emergency drainage box, a driving assembly and a pipeline assembly, a main drainage channel is formed in the main drainage box, an emergency drainage channel is formed in the pipeline assembly, and an emergency drainage opening of the emergency drainage channel is formed in the bottom of the main drainage box; a baffle is rotationally arranged at the emergency water outlet; the pipeline assembly comprises an emergency drainage pipe, a movable part and an elastic part, the emergency drainage pipe can move between a first position and a second position, when the emergency drainage pipe moves to the second position from the first position, the top end of the emergency drainage pipe moves to the position under the emergency drainage port, and the movable part moves upwards under the elastic force action of the elastic part to abut against the baffle to rotate; and the emergency water outlet is opened. The emergency drainage structure is additionally arranged, and when drainage blockage occurs, emergency drainage is started for emergency and timely drainage, so that equipment faults caused by excessive accumulated water are avoided.

Description

Technical Field

[0001] This application relates to the technical field of washer-dryer combos, and more particularly to an emergency drainage device and a washer-dryer combo. Background Technology

[0002] In the laundry and care industry, washer-dryer combos have gradually become a popular household appliance in modern homes and commercial spaces due to their convenience in combining washing and drying functions. However, existing washer-dryer combos have revealed a pressing technical problem in actual use – lint and debris clogging the drain after washing and drying.

[0003] After the washer-dryer completes its washing and drying cycles, fibers, hair, and lint shed during washing and generated during drying are carried into the drainage system by the water flow. Because these lint particles are lightweight and easily adhere to and tangle, they readily accumulate at the drain outlet. With repeated use, this lint buildup gradually forms a blockage, severely impacting drainage efficiency. Once the drain outlet is clogged, water inside the washer-dryer cannot drain properly. Excessive water accumulation not only leads to internal dampness, promoting bacterial growth and unpleasant odors, affecting the washing and hygiene of clothes, but can also damage the electronic components and mechanical parts, shortening the machine's lifespan. Furthermore, if users fail to detect and address the drain blockage promptly, water may overflow, polluting the surrounding environment and causing inconvenience and financial losses. Utility Model Content

[0004] The purpose of this application is to provide an emergency drainage device and a washer-dryer combo, which adds an emergency drainage structure so that when drainage blockage occurs, the emergency drainage can be activated to drain water in a timely manner, avoiding excessive water accumulation that could lead to equipment failure.

[0005] To achieve the above objectives, this application adopts the following technical solution:

[0006] On one hand, an emergency drainage device is provided, comprising: a main drainage box, an emergency drainage box, a drive assembly, and a pipe assembly. The emergency drainage box is disposed at the bottom of the main drainage box, and a main drainage channel is formed inside the main drainage box. The drive assembly is installed inside the emergency drainage box, and the pipe assembly is connected to the drive end of the drive assembly. The pipe assembly forms an emergency drainage channel, and an emergency drainage outlet is provided at the bottom of the main drainage box, connecting the main drainage channel and the emergency drainage channel. A baffle is rotatably disposed at the emergency drainage outlet.

[0007] The pipe assembly includes an emergency drain pipe, a movable component, and an elastic component. The movable component is connected to the top end of the emergency drain pipe via the elastic component. The emergency drain pipe can move between a first position and a second position under the drive of the drive assembly. When in the first position, the top end of the emergency drain pipe is offset from the emergency drain outlet. When moving from the first position to the second position, the top end of the emergency drain pipe moves directly below the emergency drain outlet. Under the elastic force of the elastic component, the movable component moves upward and rotates against the baffle, thereby opening the emergency drain outlet.

[0008] Furthermore, the emergency drainage pipe includes a horizontal pipe and a vertical pipe connected to one end of the horizontal pipe. The vertical pipe has a movable groove for the movable component to move up and down, and the elastic component is disposed between the bottom of the movable groove and the movable component.

[0009] Furthermore, the movable groove has a limiting groove on its wall, and the outer peripheral wall of the movable part has a limiting protrusion that cooperates with the limiting groove for limiting.

[0010] Furthermore, a sealing plate is provided at the top of the vertical pipe, and a sealing strip is provided on the sealing plate. When the vertical pipe moves to directly below the emergency drain outlet, the sealing plate seals against the bottom of the main drain box through the sealing strip.

[0011] Furthermore, the drive assembly includes a drive motor, a lead screw, and a slider. The lead screw is connected to the output shaft of the drive motor, the slider is movably mounted on the lead screw, and the horizontal tube is fixed to the slider via a connecting plate.

[0012] Furthermore, a main water outlet is provided on the side of the main drainage box, one end of which is connected to the main drainage channel, and the other end is connected to the first water outlet pipe.

[0013] Furthermore, the emergency drainage box has an emergency water outlet on its side, one end of which is connected to the emergency drainage pipe, and the other end is connected to a second water outlet pipe.

[0014] Furthermore, the inner wall of the emergency drain outlet is symmetrically provided with rotating grooves, and the outer peripheral wall of the baffle is provided with a rotating column that rotates in cooperation with the rotating grooves.

[0015] Furthermore, a water level sensor is installed in the main drainage channel, and the water level sensor is electrically connected to the drive assembly.

[0016] On the other hand, a washer-dryer combo is also provided, including the emergency drainage device as described above.

[0017] The beneficial effects of this application are as follows: The emergency drainage device mainly consists of a main drainage box, an emergency drainage box, a drive assembly, and a pipe assembly. Its working principle is as follows: When the washer-dryer combo is draining normally, water flows out through the main drainage channel in the main drainage box. At this time, the emergency drainage device is in standby mode. The emergency drainage pipe is in the first position under the action of the drive assembly, with its top offset from the emergency drainage outlet. The baffle closes the emergency drainage outlet under its own weight or in its initial setting state, preventing water from entering the emergency drainage channel. When drainage blockage occurs, the user can activate the emergency drainage function. The drive assembly starts working, driving the emergency drainage pipe from the first position to the second position. When the emergency drainage pipe moves to the second position, its top is exactly below the emergency drainage outlet. Simultaneously, the movable part in the pipe assembly moves upward under the elastic force of the elastic element. The movable part rotates against the baffle, thereby opening the emergency drainage outlet. Water accumulated in the main drainage box can then flow into the emergency drainage channel through the emergency drainage outlet and then be discharged through the emergency drainage pipe, achieving emergency drainage and preventing excessive water accumulation from causing equipment failure. The emergency drainage device and washer-dryer combo offer significant benefits. By adding an emergency drainage structure, it can drain water promptly and effectively in emergency situations such as drainage blockage, greatly reducing the risk of damage to the equipment caused by excessive water accumulation and extending the equipment's service life. At the same time, it also avoids problems such as bacterial growth and odors caused by water accumulation, ensuring the washing and care effect and hygiene of clothes, providing users with a more reliable and convenient washing and drying experience, and effectively solving the problem faced by existing washer-dryer combos when drainage is blocked. Attached Figure Description

[0018] The present application will now be described in further detail with reference to the accompanying drawings and embodiments.

[0019] Figure 1 This is a perspective view of the emergency drainage device described in the embodiments of this application;

[0020] Figure 2 This is an exploded view of the emergency drainage device described in the embodiments of this application;

[0021] Figure 3 This is an assembly diagram (in the first position) of the drive assembly and pipe assembly described in the embodiments of this application;

[0022] Figure 4 This is an assembly drawing (in the second position) of the drive assembly and pipe assembly described in the embodiments of this application;

[0023] Figure 5 This is a top view of the pipe assembly described in an embodiment of this application;

[0024] Figure 6 For this application Figure 5 Schematic diagram of the cross section at point AA;

[0025] Figure 7 This is a perspective view of the main drainage box described in an embodiment of this application;

[0026] Figure 8 This is a perspective view of the baffle described in an embodiment of this application.

[0027] In the diagram: 1. Main drain box; 101. Main drain channel; 102. Emergency drain outlet; 103. Main outlet; 104. Rotating groove; 2. Emergency drain box; 201. Emergency outlet; 3. Drive assembly; 301. Drive motor; 302. Lead screw; 303. Slider; 4. Pipe assembly; 401. Emergency drain pipe; 402. Moving part; 403. Elastic part; 404. Sealing plate; 405. Sealing strip; 406. Emergency drain channel; 4011. Horizontal pipe; 4012. Vertical pipe; 5. Baffle; 501. Rotating column; 6. First outlet pipe; 7. Second outlet pipe. Detailed Implementation

[0028] To make the technical problems solved by this application, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the embodiments of this application are further described in detail below. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0029] In the description of this application, unless otherwise expressly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0030] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0031] like Figures 1 to 8As shown, this embodiment provides an emergency drainage device, including: a main drainage box 1, an emergency drainage box 2, a drive assembly 3, and a pipe assembly 4. The emergency drainage box 2 is disposed at the bottom of the main drainage box 1, and a main drainage channel 101 is formed inside the main drainage box 1. The drive assembly 3 is installed inside the emergency drainage box 2, and the pipe assembly 4 is connected to the drive end of the drive assembly 3. The pipe assembly 4 forms an emergency drainage channel 406. An emergency drainage outlet 102 is provided at the bottom of the main drainage box 1, connecting the main drainage channel 101 and the emergency drainage channel 406. A baffle 5 is rotatably disposed at the emergency drainage outlet 102.

[0032] The pipe assembly 4 includes an emergency drain pipe 401, a movable component 402, and an elastic component 403. The movable component 402 is connected to the top end of the emergency drain pipe 401 through the elastic component 403. The emergency drain pipe 401 can move between a first position and a second position under the drive of the drive assembly 3. When it is in the first position, the top end of the emergency drain pipe 401 is offset from the emergency drain outlet 102. When it moves from the first position to the second position, the top end of the emergency drain pipe 401 moves to directly below the emergency drain outlet 102. The movable component 402 moves upward under the elastic force of the elastic component 403 and rotates against the baffle 5, thereby opening the emergency drain outlet 102.

[0033] Based on the above scheme, the emergency drainage device mainly consists of a main drainage box 1, an emergency drainage box 2, a drive assembly 3, and a pipe assembly 4. Its working principle is as follows: when the washer-dryer is draining normally, water flows out through the main drainage channel 101 in the main drainage box 1. At this time, the emergency drainage device is in standby mode. The emergency drainage pipe 401 is in the first position under the action of the drive assembly 3, with its top tip offset from the emergency drainage outlet 102. The baffle 5 closes the emergency drainage outlet 102 under its own weight or in its initial setting state, preventing water from entering the emergency drainage channel 406. When drainage blockage occurs, the user can activate the emergency drainage function. The drive assembly 3 starts working, driving the emergency drainage pipe 401 to move from the first position to the second position. When the emergency drainage pipe 401 moves to the second position, its top tip is exactly below the emergency drainage outlet 102. Meanwhile, the movable part 402 in the pipe assembly 4 moves upward under the elastic force of the elastic part 403, and the movable part 402 rotates against the baffle 5, thereby opening the emergency drain outlet 102. At this time, the water accumulated in the main drain box 1 due to drainage blockage can enter the emergency drain channel 406 through the emergency drain outlet 102, and then be discharged through the emergency drain pipe 401, realizing emergency drainage and avoiding equipment failure due to excessive water accumulation. The beneficial effects of this emergency drainage device are significant. On the one hand, the added emergency drainage structure provides a reliable emergency drainage method for the washer-dryer combo when the drain is blocked, effectively solving the problem of excessive water accumulation caused by lint clogging the drain outlet in the existing washer-dryer combo, and greatly improving the safety and reliability of the equipment. On the other hand, through the ingenious cooperation of the drive assembly 3, the pipe assembly 4, and the baffle 5, the emergency drain channel 406 is accurately opened and closed, which is simple and convenient to operate. Moreover, when not in use, the emergency drain channel 406 is in a closed state, which will not affect the normal drainage function of the washer-dryer combo, ensuring the overall performance and stability of the equipment.

[0034] Furthermore, the emergency drain pipe 401 includes a horizontal pipe 4011 and a vertical pipe 4012 connected to one end of the horizontal pipe 4011. The vertical pipe 4012 has a movable groove for the movable member 402 to move up and down. The elastic member 403 is disposed between the bottom of the movable groove and the movable member 402. When the drive assembly 3 drives the emergency drain pipe 401 to the second position, so that the top of the emergency drain pipe 401 is directly below the emergency drain outlet 102, the movable member 402 moves upward along the movable groove on the vertical pipe 4012 under the elastic force of the elastic member 403. Because the movable groove provides a specific movement path for the movable member 402, the movable member 402 can move upward stably and accurately, thereby rotating against the baffle 5 to open the emergency drain outlet 102 and realize emergency drainage. The beneficial effect of this design is that the movable groove effectively guides the movement of the movable part 402, ensuring its stability and accuracy during vertical movement. This prevents the movable part 402 from failing to effectively push the baffle 5 to rotate due to movement deviation, thereby improving the reliability of the emergency drainage device. Simultaneously, the elastic element 403 is positioned between the bottom of the movable groove and the movable part 402. This arrangement allows the elastic element 403 to function better, providing continuous and stable elastic force to the movable part 402. This ensures that when the emergency drain outlet 102 needs to be opened, the movable part 402 can move upward quickly and forcefully, further enhancing the response speed and drainage efficiency of the emergency drainage device and effectively guaranteeing the emergency drainage performance of the washer-dryer combo in case of drainage blockage.

[0035] Furthermore, the movable groove has a limiting groove on its wall, and the outer peripheral wall of the movable component 402 has a limiting protrusion that cooperates with the limiting groove for limiting. When the emergency drainage device is closed, the movable component 402 is in its initial position under the constraint of the bottom of the main drainage box 1. At this time, the limiting groove and the limiting protrusion cooperate to provide a stable positioning effect for the movable component 402, preventing the movable component 402 from moving unexpectedly under the influence of the elastic force of the elastic component 403, equipment vibration, or other external forces. This ensures that the emergency drainage device is in a stable standby state and avoids accidental triggering of the emergency drainage function due to the displacement of the movable component 402. When the emergency drainage function needs to be activated, the drive assembly 3 drives the emergency drainage pipe 401 to move, and the movable component 402 begins to move upward under the action of the elastic force of the elastic component 403. The limiting protrusion moves along the trajectory of the limiting groove. This cooperative design of the limiting groove and the limiting protrusion allows the movable component 402 to move according to a predetermined path and position, ensuring the stability and accuracy of the movable component 402 during the movement. When the movable part 402 moves to a position where it can rotate against the baffle 5, the limiting protrusion precisely engages with the corresponding limiting groove, fixing the movable part 402 in that position and ensuring that the emergency drain outlet 102 can be reliably opened to achieve emergency drainage.

[0036] Furthermore, a sealing plate 404 is installed at the top of the vertical pipe 4012, and a sealing strip 405 is installed on the sealing plate 404. Its working principle and beneficial effects are as follows: When the washer-dryer combo is in normal drainage mode and the emergency drainage device is not activated, the vertical pipe 4012 and the emergency drain outlet 102 are not in corresponding positions, and the sealing plate 404 does not contact the bottom of the main drain box 1. At this time, the emergency drainage channel 406 is closed, and the normal drainage function of the main drainage channel 101 is not affected. However, when drainage blockage occurs and the emergency drainage function needs to be activated, the drive assembly 3 drives the emergency drain pipe 401 to move, and the vertical pipe 4012 moves directly below the emergency drain outlet 102. At this time, the sealing plate 404 seals against the bottom of the main drain box 1 through the sealing strip 405. This design plays multiple key roles. On the one hand, the sealing strip 405 fills the gap between the sealing plate 404 and the bottom of the main drain box 1, effectively preventing water in the main drain box 1 from leaking through this gap when emergency drainage is not activated, thus ensuring the sealing performance of the equipment in normal drainage and standby states. On the other hand, during emergency drainage, the sealing contact between the sealing plate 404 and the sealing strip 405 guides the water flow more smoothly through the emergency drainage channel 406, preventing leakage or turbulence at the interface and improving the efficiency and reliability of emergency drainage. Simultaneously, the sealing strip 405 also has a certain degree of elasticity and cushioning, providing a buffering and shock-absorbing effect when the sealing plate 404 contacts the bottom of the main drain box 1, reducing noise and damage caused by collisions and extending the service life of the equipment.

[0037] In some embodiments, the drive assembly 3 includes a drive motor 301, a lead screw 302, and a slider 303. The lead screw 302 is connected to the output shaft of the drive motor 301, and the slider 303 is movably mounted on the lead screw 302. The horizontal pipe 4011 is fixed to the slider 303 via a connecting plate. The drive assembly 3 consists of the drive motor 301, the lead screw 302, and the slider 303. When the emergency drainage function needs to be activated, the drive motor 301 starts operating, and its output shaft drives the lead screw 302 to rotate. Since the slider 303 is movably mounted on the lead screw 302, according to the transmission principle of the lead screw 302, the rotation of the lead screw 302 causes the slider 303 to move linearly along the lead screw 302. The horizontal pipe 4011 is fixed to the slider 303 via the connecting plate, so the linear movement of the slider 303 directly drives the horizontal pipe 4011 to move, thereby causing the entire emergency drainage pipe 401 to move horizontally. When the emergency drain pipe 401 moves to the second position, that is, when the vertical pipe 4012 moves directly below the emergency drain outlet 102, the emergency drain channel 406 can be opened to drain water.

[0038] It is worth mentioning that the main drainage box 1 has a main outlet 103 on its side, one end of which is connected to the main drainage channel 101, and the other end is connected to the first outlet pipe 6; the emergency drainage box 2 has an emergency outlet 201 on its side, one end of which is connected to the emergency drainage pipe 401, and the other end is connected to the second outlet pipe 7. The main drainage and emergency drainage use independent outlets and pipes, ensuring the independence of the two drainage methods during operation. During normal drainage, the emergency drainage system is in standby mode and will not interfere with the normal operation of the main drainage channel 101; while during emergency drainage, if the main drainage channel 101 is still blocked, it will not affect the efficient drainage of the emergency drainage channel 406, greatly improving the reliability and stability of the drainage system. The independent outlet and pipe design allows for layout according to the needs of main drainage and emergency drainage during installation, making it more flexible and convenient. Meanwhile, during later maintenance, if the main drainage system or emergency drainage system malfunctions, the problem can be located more precisely, allowing for separate inspection and repair of the corresponding outlet pipes and drainage channels, reducing maintenance difficulty and costs. Furthermore, independent drainage paths effectively prevent backflow. For example, when there are pressure changes in the external drainage pipes, because the main drainage and emergency drainage are independent, a pressure issue in one drainage channel will not affect the normal drainage of the other. In addition, independent outlet pipes can be equipped with odor-proof devices to reduce odors emanating from the drain outlets into the room, improving the user experience.

[0039] Optionally, the inner wall of the emergency drain outlet 102 is symmetrically provided with rotating grooves 104, and the outer peripheral wall of the baffle 5 is provided with a rotating column 501 that rotates and engages with the rotating grooves 104. The engagement of the rotating grooves 104 and the rotating column 501 provides precise guidance for the rotation of the baffle 5, ensuring that the baffle 5 remains stable during rotation and preventing it from wobbling or shifting. This ensures that the emergency drain outlet 102 can open and close accurately and reliably. This stable rotational performance improves the reliability and stability of the emergency drainage device and reduces the risk of emergency drainage failure due to improper rotation of the baffle 5.

[0040] Meanwhile, the design of the rotating groove 104 and the rotating column 501 allows the baffle 5 to be precisely positioned in both the closed and open positions. In the closed state, the rotating column 501 is embedded in the rotating groove 104, ensuring that the baffle 5 fits tightly against the emergency drain outlet 102, effectively preventing leakage. In the open state, the rotating column 501 rotates to a specific position within the rotating groove 104, ensuring that the emergency drain outlet 102 opens to the appropriate degree, allowing water to drain smoothly. This precise positioning function helps improve the drainage efficiency of the emergency drainage device.

[0041] Preferably, a water level sensor is installed in the main drainage channel 101, and the water level sensor is electrically connected to the drive component 3. This electrical connection between the water level sensor and the drive component 3 enables automated control of the emergency drainage device. There is no need for manual monitoring of the water level in the main drainage channel 101; when the water level reaches a dangerous threshold, the device can automatically activate the emergency drainage function, greatly improving the intelligence and ease of use of the equipment. By monitoring the water level in real time, the water level sensor can send a signal at the first sign of an abnormal water level, and the drive component 3 responds quickly and promptly initiates emergency drainage. This effectively avoids equipment malfunctions caused by excessively high water levels due to drainage blockage, such as motor damage or water immersion of internal components, protecting the safe operation of the washer-dryer combo.

[0042] In addition, the water level sensor can accurately detect the water level, and the emergency drainage function will only be triggered when the water level reaches a set danger threshold. This precise control method avoids unnecessary emergency drainage operations, improves the targeting and effectiveness of emergency drainage, and also reduces water waste.

[0043] On the other hand, a washer-dryer combo is also provided, including the emergency drainage device as described above.

[0044] In the description herein, it should be understood that the terms "upper," "lower," "left," "right," and other orientations or positional relationships are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used merely for descriptive distinction and have no special meaning.

[0045] In the description of this specification, references to terms such as "an embodiment," "example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0046] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0047] The technical principles of this application have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this application and should not be construed as limiting the scope of protection of this application in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this application without inventive effort, and these embodiments will all fall within the scope of protection of this application.

Claims

1. An emergency drainage device, characterized in that, include: The system includes a main drain box, an emergency drain box, a drive assembly, and a pipe assembly. The emergency drain box is located at the bottom of the main drain box and has a main drain channel. The drive assembly is installed inside the emergency drain box. The pipe assembly is connected to the drive end of the drive assembly and has an emergency drain channel. The bottom of the main drain box has an emergency drain outlet that connects the main drain channel and the emergency drain channel. A baffle is rotatably installed at the emergency drain outlet. The pipe assembly includes an emergency drain pipe, a movable component, and an elastic component. The movable component is connected to the top end of the emergency drain pipe via the elastic component. The emergency drain pipe can move between a first position and a second position under the drive of the drive assembly. When in the first position, the top end of the emergency drain pipe is offset from the emergency drain outlet. When moving from the first position to the second position, the top end of the emergency drain pipe moves directly below the emergency drain outlet. Under the elastic force of the elastic component, the movable component moves upward and rotates against the baffle, thereby opening the emergency drain outlet.

2. The emergency drainage device according to claim 1, characterized in that, The emergency drainage pipe includes a horizontal pipe and a vertical pipe connected to one end of the horizontal pipe. The vertical pipe has a movable groove for the movable component to move up and down. The elastic component is disposed between the bottom of the movable groove and the movable component.

3. The emergency drainage device according to claim 2, characterized in that, The movable groove has a limiting groove on its wall, and the outer peripheral wall of the movable part has a limiting protrusion that cooperates with the limiting groove to limit movement.

4. The emergency drainage device according to claim 2, characterized in that, A sealing plate is provided at the top of the vertical pipe, and a sealing strip is provided on the sealing plate. When the vertical pipe moves to directly below the emergency drain outlet, the sealing plate and the bottom of the main drain box are sealed and abutted together by the sealing strip.

5. The emergency drainage device according to claim 2, characterized in that, The drive assembly includes a drive motor, a lead screw, and a slider. The lead screw is connected to the output shaft of the drive motor, the slider is movably mounted on the lead screw, and the horizontal tube is fixed to the slider via a connecting plate.

6. The emergency drainage device according to any one of claims 1-5, characterized in that, The main drain box has a main water outlet on its side. One end of the main water outlet is connected to the main drain channel, and the other end is connected to the first water outlet pipe.

7. The emergency drainage device according to any one of claims 1-5, characterized in that, An emergency water outlet is provided on the side of the emergency drainage box. One end of the emergency water outlet is connected to the emergency drainage pipe, and the other end is connected to a second water outlet pipe.

8. The emergency drainage device according to any one of claims 1-5, characterized in that, The inner wall of the emergency drain outlet is symmetrically provided with rotating grooves, and the outer peripheral wall of the baffle is provided with a rotating column that rotates in conjunction with the rotating grooves.

9. The emergency drainage device according to any one of claims 1-5, characterized in that, A water level sensor is installed in the main drainage channel, and the water level sensor is electrically connected to the drive component.

10. A washer-dryer combo, characterized in that, Includes the emergency drainage device as described in any one of claims 1-9.

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