Water draining device, washing machine base and washing machine

Abstract

The application discloses a water leakage device, a washing machine base and a washing machine. The water leakage device comprises a water leakage cap, a fastener, a spring and a water sealing cover. A water leakage hole is arranged on the water leakage cap, so that water flows from above the water leakage cap to below the water leakage cap through the water leakage hole. The water sealing cover below the water leakage cap is connected with the water leakage cap through the fastener, and the water leakage cap and the water sealing cover are separated through the spring arranged between the water sealing cover and the water leakage cap. The upper end of the fastener is movably hung on the water leakage cap, so that the water sealing cover can be hung below the water leakage cap through the fastener, and can also move axially upward along the fastener mounting hole when the water sealing cover below is subjected to an upward force, and the water sealing cover cooperates with the pipe wall or the hole wall on which the water leakage device is mounted to seal the water flow channel below the water leakage cap. The base of the water leakage device is arranged at the bottom of the washing machine and is provided with a water collecting channel, a water discharging channel, a water leakage device mounting hole and a water leakage device. The problem that washing water splashed from the inner drum flows to the ground does not occur.

Description

Technical Field

[0001] This invention belongs to the field of washing machines, specifically, it relates to a drain device, a washing machine base, and a washing machine. Background Technology

[0002] Existing fully automatic washing machines may splash water under certain special conditions because users prefer to use a strong water flow. Water splashed out from the inner drum during washing will flow through the cabinet to the base and eventually onto the user's floor, resulting in a poor user experience.

[0003] Chinese patent application number 201920555277.9 discloses a washing machine and a water-blocking device for the washing machine. The complex structure of its water-collecting device leads to high mold manufacturing costs and increased manufacturing difficulty, resulting in increased overall costs. Furthermore, its drainage channel is connected to the water-collecting chamber of the water-collecting device, which may cause the water level to rise into the water-collecting chamber and overflow during washing machine drainage.

[0004] In view of this, the present invention is proposed. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a water drainage device, a washing machine base and a washing machine, which can prevent water splashed from the inner tub from flowing to the ground.

[0006] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by the present invention is as follows:

[0007] A drainage device includes a drainage cap, fasteners, a spring, and a sealing cap.

[0008] The drain cap is disc-shaped and has a drain hole that runs through the top and bottom, as well as a central through hole for fastener installation.

[0009] The water seal cover, located below the drain cap, is disc-shaped and has a fastener fixing device at the top center. A spring is installed between the water seal cover and the drain cap.

[0010] Fasteners are inserted into the fastener mounting holes on the drain cap, with their lower ends connected to the fastener fixing devices on the sealing cap, and their upper ends movably suspended from the drain cap, connecting the drain cap and the sealing cap.

[0011] The water seal cover and fasteners can move relative to the drain cap along the axial direction of the fastener mounting hole.

[0012] By providing a drain hole on the drain cap, water can flow from the top of the drain cap through the drain hole to the bottom of the drain cap. A sealing cap located below the drain cap is connected to the drain cap by fasteners and separated from it by a spring installed between the sealing cap and the drain cap. Because the upper end of the fastener is movably suspended from the drain cap, the sealing cap can be suspended below the drain cap by the fastener, and when an upward force is applied below the sealing cap, it can overcome the spring force, causing the sealing cap and fastener to move axially upwards along the fastener mounting hole. The sealing cap cooperates with the pipe wall or hole wall where the drain device is installed to seal the water flow channel below the drain cap, preventing the water below from flowing back upwards through the pipe or hole where the drain device is installed.

[0013] Furthermore, the fastener mounting hole is located in the center of the drain cap, and the drain cap has threads on its outer periphery.

[0014] To ensure smoother up-and-down movement of the water seal cover, the fastener mounting hole is located at the center of the drain cap, and the fastener fixing device is located at the center of the top of the water seal cover. In this way, when the water seal cover moves downward under the downward force of the spring, and when the water seal cover moves upward under the upward force from below, the force on the water seal cover is more evenly distributed and its up-and-down movement is smoother because the fastener is installed at the center of the drain cap and also at the center of the water seal cover.

[0015] The drain cap has threads on its outer circumference, which allows the drain device to be connected to the washing machine base via the threaded connection. This facilitates installation and seals the gap between the drain cap and the washing machine base.

[0016] Furthermore, the fasteners are screws, and the water seal cover has screw holes as fastener fixing devices.

[0017] The screw threaded connection between the screw and the screw hole on the water seal makes it easier to connect the fastener to the water seal. Furthermore, the diameter of the nut on the top of the screw is larger than the diameter of the fastener mounting hole, so the screw can be suspended on the drain cap, making the overall installation convenient.

[0018] Furthermore, the spring is fitted over the fastener, with one end of the spring abutting against the top of the water-sealing cap and the other end abutting against the bottom of the drain cap.

[0019] By attaching a spring to the outer periphery of the fastener and having the upper and lower ends of the spring abut against the drain cap and the sealing cap respectively, the sealing cap can move downwards when there is no support below, separating from the pipe wall or hole wall where the drain device is installed, thus opening the water flow channel below the drain cap and facilitating the downward drainage of water above the drain cap.

[0020] Furthermore, a silicone pad is provided on the upper surface of the water seal cover.

[0021] Since the sealing cap needs to contact and fit with the pipe wall or hole wall where the drain device is installed to seal the water flow channel below the drain cap, a silicone pad is attached to the upper surface of the sealing cap to achieve a better sealing effect. In this way, the silicone pad can better achieve a seal when it contacts and fits with the pipe wall or hole wall where the drain device is installed.

[0022] The water seal cap is spherical with a rounded top, which helps to achieve a better seal.

[0023] Furthermore, the top center of the water seal cover is provided with an upwardly protruding cylinder, the outer diameter of which is smaller than the diameter of the fastener mounting hole on the drain cap. The cylinder is provided with an upwardly opening screw hole as a fastener fixing device. A spring is sleeved on the outside of the cylinder, with one end of the spring abutting against the top of the water seal cover and the other end abutting against the bottom surface of the drain cap.

[0024] Since the water seal cap is located at the bottom, and given that the installation environment of the drain device is located at the base of the washing machine, which is a narrow space, the water seal cap needs to be fixed from the bottom upwards. Therefore, in order to facilitate the fixing of the spring, an upward-protruding cylinder is provided at the center of the top of the water seal cap. The spring is sleeved on the outside of the cylinder, and the bottom of the spring is supported by the water seal cap so that it will not fall off.

[0025] The outer diameter of the cylinder is smaller than the diameter of the fastener mounting hole on the drain cap, allowing it to be inserted into the fastener mounting hole. The cylinder has an upward-facing screw hole as a fastener fixing device, which is connected to the cylinder by a screw, making installation convenient.

[0026] The present invention also provides a washing machine base, including a water collection channel, a drainage channel, a drain device mounting hole, and the aforementioned drain device.

[0027] The base has an open-ended annular channel on its upper surface around the perimeter. A drain device mounting hole is located within the water collection channel and extends vertically through the bottom plate of the water collection channel. The lower part of the drain device mounting hole connects to a drainage channel, and the drain device is installed in the drain device mounting hole. A drainage channel is located within the base and connects to an external drain pipe.

[0028] By using an open annular channel on the upper surface of the base as a water collection channel, the washing water that splashes out from the inner tub and flows to the base during the washing machine operation is collected. Because the water collection channel is open, the water splashed out from the inner tub can be collected without obstruction. Furthermore, because the annular channel is set along the upper surface of the base as a water collection channel, water that splashes out from any position in the inner tub can be collected, avoiding the problem of washing water splashing out and flowing to the ground.

[0029] A through-hole is provided in the water collection channel as an installation hole for the drain device, allowing the washing water collected in the collection channel to drain downwards through the drain device. Since the lower part of the drain device installation hole connects to the drainage channel, which in turn connects to the external drain pipe, the water drained downwards from the drain device can enter the drainage channel and then be drained away through the external drain pipe. Because the washing machine base is installed at the bottom of the washing machine casing, the entire process of collecting and draining washing water splashed from the inner tub takes place inside the washing machine casing, preventing leaks and thus eliminating the problem of washing water splashed from the inner tub flowing onto the ground.

[0030] Furthermore, the mounting hole of the drain device has an internal thread, and the outer circumference of the drain cap of the drain device has a thread that connects with the threaded mounting hole of the drain device.

[0031] To facilitate the installation and connection of the drain device and the base, the drain device mounting hole has an internal thread, and the drain cap of the drain device has a thread on its outer circumference, thus achieving a threaded connection that is quick and convenient.

[0032] Furthermore, the pipe wall forming the drain device mounting hole on the base extends downwards for a certain length. The water seal cover moves downwards under the action of the spring and separates from the bottom end of the pipe wall. When the washing machine drains, the water seal cover moves upwards under the force, and its upper surface cooperates with the bottom end of the pipe wall to seal the drain device mounting hole.

[0033] Since the lower part of the drain device mounting hole is connected to the drain channel, in order to better achieve a seal and prevent the washing water from flowing back up to the base from the drain channel when the washing machine is draining water, the pipe wall forming the drain device mounting hole on the base extends downwards for a certain length, so that the bottom of the water seal cover is moved upwards under the force, and the upper surface of the water seal cover cooperates with the bottom end of the pipe wall to seal the drain device mounting hole.

[0034] The present invention also provides a washing machine, including the aforementioned base.

[0035] A base with a water collection channel, a drainage channel, a drain device mounting hole, and a drain device is installed at the bottom of the washing machine. When the washing machine is running, wash water splashing from the inner tub onto the base is collected unimpeded in the water collection channel and drained downwards through the drain device in the drain device mounting hole into the drainage channel, and then discharged through the external drain pipe. The entire process of collecting and draining wash water splashed from the inner tub takes place inside the washing machine casing, preventing leaks and thus eliminating the problem of wash water splashing from the inner tub flowing onto the ground.

[0036] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art.

[0037] This invention discloses a drain device, a washing machine base, and a washing machine. The drain device includes a drain cap, a fastener, a spring, and a sealing cap. A drain hole is provided on the drain cap, allowing water to flow from above the drain cap through the drain hole to below the drain cap. The sealing cap, located below the drain cap, is connected to the drain cap via the fastener and separated from it by a spring installed between the sealing cap and the drain cap. Because the upper end of the fastener is movably suspended from the drain cap, the sealing cap can be suspended below the drain cap via the fastener, and when an upward force is applied below the sealing cap, it can overcome the spring force, causing the sealing cap and fastener to move axially upward along the fastener mounting hole. The sealing cap cooperates with the pipe wall or hole wall where the drain device is installed to seal the water flow channel below the drain cap, preventing backflow of water upward through the pipe or hole where the drain device is installed. A base with a water collection channel, a drain channel, a drain device mounting hole, and a drain device is installed at the bottom of the washing machine. When the washing machine is running, the washing water that splashes out from the inner tub and flows to the base is collected unimpeded in the water collection channel and drained downwards into the drain channel through the drain device in the drain hole, and then discharged through the external drain pipe. The entire process of collecting and draining the washing water splashed out from the inner tub takes place inside the washing machine. When the washing machine is draining, the water seal cover isolates the water collection channel from the drain channel to prevent backflow and leakage. Therefore, the washing water splashed out from the inner tub will not flow onto the ground. Furthermore, the structure is simple, easy to install, and low in cost.

[0038] The specific embodiments of the present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0039] The accompanying drawings, as part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments and descriptions of the invention are used to explain the invention, but do not constitute an undue limitation of the invention. Obviously, the drawings described below are merely some embodiments, and those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings:

[0040] Figure 1 This is a schematic diagram of the structure of the drainage device of the present invention;

[0041] Figure 2 This is an assembly diagram of the drainage device of the present invention;

[0042] Figure 3 This is a partial structural schematic diagram of the washing machine base of the present invention;

[0043] Figure 4 This is a schematic diagram of the installation of the drain device on the washing machine base when the washing machine is not draining.

[0044] Figure 5This is a schematic diagram of the installation of the drain device on the washing machine base during the washing machine's draining state in this invention.

[0045] In the diagram: 1. Drainage device; 11. Drainage cap; 12. Water seal cover; 13. Screw; 14. Spring; 15. Drainage hole; 16. Fastener mounting hole; 17. Cylinder; 2. Base; 21. Water collection channel; 22. Drainage channel; 23. Drainage device mounting hole.

[0046] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the invention in any way, but rather to illustrate the concept of the invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0047] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0048] In the description of this invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, 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. Therefore, they should not be construed as limiting this invention.

[0049] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0050] Combination Figure 1 , 2 As shown, the present invention provides a drainage device 1, which includes a drainage cap 11, a fastener, a spring 14, and a water-sealing cover 12.

[0051] The drain cap 11 is disc-shaped and has a drain hole 15 that runs through the top and bottom, as well as a central through hole as a fastener mounting hole 16.

[0052] The water-sealing cover 12 is located below the drain cap 11. It is disc-shaped and has a fastener fixing device at the top center. A spring 14 is provided between the water-sealing cover 12 and the drain cap 11.

[0053] The fastener is inserted into the fastener mounting hole 16 on the drain cap 11, with its lower end connected to the fastener fixing device on the sealing cover 12, and its upper end movably suspended from the drain cap 11, connecting the drain cap 11 and the sealing cover 12.

[0054] The water seal cover 12 and the fastener can move relative to the drain cap 11 along the axial direction of the fastener mounting hole 16.

[0055] By providing multiple drainage holes 15 on the drainage cap 11, water can flow from above the drainage cap 11 through the drainage holes 15 to below the drainage cap 11. In this embodiment, four drainage holes 15 are provided. The sealing cap 12 located below the drainage cap 11 is connected to the drainage cap 11 by fasteners and separated from it by a spring 14 installed between the sealing cap 12 and the drainage cap 11. Since the upper end of the fastener is movably suspended from the drainage cap 11, the sealing cap 12 can be suspended below the drainage cap 11 by the fasteners, and when an upward force is applied below the sealing cap 12, it can overcome the elastic force of the spring 14, causing the sealing cap 12 and the fastener to move upward along the fastener mounting hole 16. The sealing cap 12 cooperates with the pipe wall or hole wall of the drainage device 1 to seal the water flow channel below the drainage cap 11, preventing the water below from flowing back upward through the pipe or hole of the drainage device 1.

[0056] The fastener mounting hole 16 is located at the center of the drain cap 11, and the drain cap 11 has threads on its outer periphery.

[0057] To ensure smoother up-and-down movement of the water seal cover 12, the fastener mounting hole 16 is located at the center of the drain cap 11, and the fastener fixing device is located at the center of the top of the water seal cover 12. Thus, when the water seal cover 12 moves downward under the downward force of the spring 14, and when the water seal cover 12 moves upward under the upward force from below, the force on the water seal cover 12 is more evenly distributed and its up-and-down movement is smoother because the fastener is installed at the center of the drain cap 11 and also at the center of the water seal cover 12.

[0058] The drain cap 11 has threads on its outer circumference, so that the drain device 1 can be connected to the washing machine base 2 by the threaded connection, which is convenient for installation and can seal the gap between the drain cap 11 and the washing machine base 2.

[0059] The fastener is a screw 13, and the water seal cover 12 is provided with screw holes as a fastener fixing device.

[0060] The threaded connection between the screw 13 and the screw hole on the water seal cap 12 makes it easier to connect the fastener to the water seal cap 12. Furthermore, the diameter of the nut at the top of the screw 13 is larger than the diameter of the fastener mounting hole 16, so the screw 13 can be suspended on the drain cap 11, thus making the overall installation convenient.

[0061] Spring 14 is fitted over the fastener, with one end of spring 14 abutting against the top of water seal cap 12 and the other end abutting against the bottom of drain cap 11.

[0062] By attaching a spring 14 to the outer periphery of the fastener and having the upper and lower ends of the spring 14 abut against the drain cap 11 and the sealing cover 12 respectively, the sealing cover 12 can move downwards when there is no support below it, separating from the pipe wall or hole wall where the drain device 1 is installed, thus opening the water flow channel below the drain cap 11 and facilitating the downward drainage of water above the drain cap 11.

[0063] A silicone pad is provided on the upper surface of the water-sealing cover 12.

[0064] Combination Figure 3 , 4 As shown in Figure 5, since the water sealing cover 12 needs to contact and cooperate with the pipe wall or hole wall where the drain device 1 is installed to seal the water flow channel below the drain cap 11, a silicone pad is attached to the upper surface of the water sealing cover 12 in order to achieve a better sealing effect. In this way, the silicone pad can better achieve a seal by contacting and cooperating with the pipe wall or hole wall where the drain device 1 is installed.

[0065] The water seal cap 12 is spherical with a rounded top, which helps to achieve a better seal.

[0066] The top center of the water-sealing cover 12 has an upwardly protruding cylinder 17. The outer diameter of the cylinder 17 is smaller than the diameter of the fastener mounting hole 16 on the drain cap 11. The cylinder 17 has an upwardly opening screw hole as a fastener fixing device. A spring 14 is sleeved on the cylinder 17, with one end of the spring 14 abutting against the top of the water-sealing cover 12 and the other end abutting against the bottom surface of the drain cap 11. The water-sealing cover is a one-piece structure.

[0067] Since the water seal cover 12 is located at the bottom, and given that the installation environment of the drain device 1 is located at the washing machine base 2, the installation environment is narrow. The water seal cover 12 needs to be fixed from the bottom upward. Therefore, in order to facilitate the fixing of the spring 14, the top center of the water seal cover 12 is provided with an upward protruding cylinder 17. The spring 14 is sleeved on the cylinder 17, and the bottom of the spring 14 is supported by the water seal cover 12 so that it will not fall off.

[0068] The outer diameter of the cylinder 17 is smaller than the diameter of the fastener mounting hole 16 on the drain cap 11, so that it can be inserted into the fastener mounting hole 16 on the drain cap 11. The cylinder 17 is provided with an upward-facing screw hole as a fastener fixing device. It is connected to the cylinder 17 by a screw 13, which makes it easy to install.

[0069] The present invention also provides a washing machine base, combined with Figure 3 , 4 As shown in Figures 5 and 6, the washing machine base 2 includes a water collection channel 21, a drainage channel 22, a drain device mounting hole 23, and the aforementioned drain device 1.

[0070] A water collection channel 21 is formed by an open annular channel along the circumference of the upper surface of the base 2. A drain device mounting hole 23 is located within the water collection channel 21 and extends vertically through the bottom plate of the water collection channel 21. The lower part of the drain device mounting hole 23 connects to a drainage channel 22, and a drain device 1 is installed in the drain device mounting hole 23. In other words, the drain device mounting hole 23 connects the upper water collection channel 21 and the lower drainage channel 22, and the drain device 1 is installed in the drain device mounting hole 23. The drainage channel 22 is located within the base 2 and connects to an external drain pipe.

[0071] An open-ended annular channel 21 is provided on the upper surface of the base 2 around the base 2 to collect the washing water that splashes out from the inner tub and flows to the base 2 during the operation of the washing machine. Since the water collection channel 21 is open, the water splashed out from the inner tub can be collected without obstruction. Since the annular channel 21 is provided on the upper surface of the base 2 around the base 2, the water splashed out from any position in the inner tub can be collected, avoiding the problem that the washing water cannot be collected and flows to the ground after splashing out.

[0072] A through hole is provided in the water collection channel 21 as a drain device mounting hole 23 to install the drain device 1, so that the washing water collected in the water collection channel 21 can be discharged downward through the drain hole 15 of the drain device 1. Since the lower part of the drain device mounting hole 23 is connected to the drain channel 22, and the drain channel 22 is connected to the external drain pipe, the water discharged downward from the drain hole 15 of the drain device 1 flows into the drain channel 22 through the gap between the water seal and the hole wall of the drain device mounting hole, and is then discharged through the external drain pipe. Since the washing machine base 2 is installed at the bottom of the washing machine body, the entire process of collecting and draining the washing water splashed from the inner tub is carried out inside the washing machine body, and no leakage will occur, thus preventing the washing water splashed from the inner tub from flowing to the ground.

[0073] The drain device mounting hole 23 has an internal thread, and the drain cap 11 of the drain device 1 has a thread on its outer periphery that is threaded to the drain device mounting hole 23.

[0074] To facilitate the installation and connection of the drain device 1 and the base 2, the drain device mounting hole 23 has an internal thread, and the drain cap 11 of the drain device 1 has a thread on its outer circumference, thus achieving a threaded connection that is quick and convenient.

[0075] The pipe wall of the base 2, which forms the drain device mounting hole 23, extends downwards for a certain length. When the washing machine is not draining, the water-sealing cover 12 moves downwards under the action of the spring 14 and separates from the bottom end of the pipe wall. Figure 4 As shown; when the washing machine drains, the water seal cover 12 moves upward under the pressure of the water in the drain channel, and the upper surface of the water seal cover cooperates with the bottom end of the pipe wall to seal the drain device mounting hole 23, as shown. Figure 5 As shown.

[0076] Since the lower part of the drain device mounting hole 23 is connected to the drain channel 22, in order to better achieve a seal and prevent washing water from flowing back up from the drain channel 22 to the base 2 when the washing machine is draining water, the pipe wall forming the drain device mounting hole 23 on the base 2 extends downwards for a certain length. This causes the lower part of the water-sealing cover 12 to be pushed upwards, and the upper surface of the water-sealing cover 12 cooperates with the bottom end of the pipe wall to seal the drain device mounting hole 23. Figure 5 As shown.

[0077] The present invention also provides a washing machine, including the aforementioned base 2.

[0078] A base 2, comprising a water collection channel 21, a drain channel 22, a drain device mounting hole 23, and a drain device 1, is installed at the bottom of the washing machine. When the washing machine is running, washing water splashing from the inner tub and flowing to the base 2 is collected unimpeded in the water collection channel 21 and drained downwards through the drain device 1 in the drain device mounting hole 23 into the drain channel 22, and then discharged through the external drain pipe. The entire process of collecting and draining the washing water splashed from the inner tub takes place inside the washing machine casing, preventing leaks and thus eliminating the problem of washing water splashing from the inner tub flowing onto the ground.

[0079] This invention discloses a drain device, a washing machine base, and a washing machine. The drain device includes a drain cap, a fastener, a spring, and a sealing cap. A drain hole is provided on the drain cap, allowing water to flow from above the drain cap through the drain hole to below the drain cap. The sealing cap, located below the drain cap, is connected to the drain cap via the fastener and separated from it by a spring installed between the sealing cap and the drain cap. Because the upper end of the fastener is movably suspended from the drain cap, the sealing cap can be suspended below the drain cap via the fastener, and when an upward force is applied below the sealing cap, it can overcome the spring force, causing the sealing cap and fastener to move axially upward along the fastener mounting hole. The sealing cap cooperates with the pipe wall or hole wall where the drain device is installed to seal the water flow channel below the drain cap, preventing backflow of water upward through the pipe or hole where the drain device is installed. A base with a water collection channel, a drain channel, a drain device mounting hole, and a drain device is installed at the bottom of the washing machine. When the washing machine is running, the washing water that splashes out from the inner tub and flows to the base is collected unimpeded in the water collection channel and drained downwards into the drain channel through the drain device in the drain hole, and then discharged through the external drain pipe. The entire process of collecting and draining the washing water splashed out from the inner tub takes place inside the washing machine. When the washing machine is draining, the water seal cover isolates the water collection channel from the drain channel to prevent backflow and leakage. Therefore, the washing water splashed out from the inner tub will not flow onto the ground. Furthermore, the structure is simple, easy to install, and low in cost.

[0080] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present invention. The implementation schemes in the above embodiments can also be further combined or replaced. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A water discharge device characterized by: Includes drain cap, fasteners, springs, and sealing cap. The drain cap is disc-shaped and has a drain hole that runs through the top and bottom, as well as a central through hole for fastener installation. The water seal cover, located below the drain cap, is disc-shaped with a fastener fixing device at the center of its top. A spring is installed between the water seal cover and the drain cap. The water seal cover is spherical and its top is arc-shaped. Fasteners are inserted into the fastener mounting holes on the drain cap, with their lower ends connected to the fastener fixing devices on the sealing cap, and their upper ends movably suspended from the drain cap, connecting the drain cap and the sealing cap. The water seal cover and fasteners can move relative to the drain cap along the axial direction of the fastener mounting hole.

2. The drainage device according to claim 1, characterized in that: The drain cap has threads on its outer circumference.

3. The drainage device according to claim 1, characterized in that: The fastener is a screw. The water seal cap has screw holes as fastener fixing devices. The diameter of the nut on the top of the screw is larger than the diameter of the fastener mounting hole. The screw is suspended on the drain cap.

4. A drainage device according to claim 1, characterized in that: The spring is fitted over the fastener, with one end of the spring abutting against the top of the water seal cap and the other end abutting against the bottom of the drain cap.

5. A drainage device according to any one of claims 1-4, characterized in that: A silicone pad is provided on the upper surface of the water seal cover.

6. A drainage device according to any one of claims 1-3, characterized in that: The top center of the water seal cover has an upward-protruding cylinder with an outer diameter smaller than the diameter of the fastener mounting hole on the drain cap. The cylinder has an upward-opening screw hole as a fastener fixing device. A spring is sleeved on the outside of the cylinder, with one end of the spring abutting against the top of the water seal cover and the other end abutting against the bottom surface of the drain cap.

7. A washing machine base, characterized in that: It includes a water collection channel, a drainage channel, a water discharge device mounting hole, and the water discharge device as described in any one of claims 1-6. The water collection channel is a ring-shaped channel with an open top, located on the upper surface of the base around its perimeter. The drain device mounting hole is located in the water collection channel and runs vertically through the bottom plate of the water collection channel. The lower part of the drain device mounting hole is connected to the drainage channel. The drain device is installed in the drain device mounting hole. Drainage channel, connecting to the external drainage pipe.

8. A washing machine base according to claim 7, characterized in that: The drain device mounting hole has an internal thread, and the drain cap of the drain device has a thread on its outer circumference that is threaded to connect with the drain device mounting hole.

9. A washing machine base according to claim 7, characterized in that: The pipe wall forming the drain device mounting hole on the base extends downwards for a certain length. The water seal cover moves down and separates from the bottom of the pipe wall under the action of the spring. When the washing machine drains, the water seal cover moves upward under the force, and its upper surface cooperates with the bottom of the pipe wall to seal the drain device mounting hole.

10. A washing machine, characterized in that: Includes the washing machine base as described in any one of claims 7-9.

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