Laundry appliance

Abstract

The present application relates to laundry technology field, specifically provide a kind of laundry equipment, to solve the problem of not being convenient for underwear to be washed by machine in existing laundry equipment.For this purpose, the laundry equipment of the present application includes outer tube and inner tube rotationally arranged in outer tube, and the laundry equipment further includes washing cabin, and the washing cabin includes sealing shell, sealing cover for opening and closing sealing shell and cabin sealing element capable of sealing sealing shell and sealing cover, sealing shell is detachably connected to the inner wall of inner tube, and drainage opening is formed on sealing shell, centrifugal drainage valve is arranged on drainage opening, and centrifugal drainage valve is arranged to open drainage opening when sealing shell is connected to the inner wall of inner tube and the rotational speed of inner tube is greater than or equal to set speed.The present application enables underwear to be washed by machine, and can realize partition washing, avoid cross infection, and the rotational speed of inner tube reaches set speed, and water in washing cabin can be discharged, to avoid manual drainage, realize automatic drainage, and facilitate the use of user.

Description

Technical Field

[0001] This invention relates to the field of laundry technology, and specifically provides a laundry device. Background Technology

[0002] Laundry equipment is a device that can wash, rinse, and spin-dry clothes, such as front-loading washing machines, top-loading washing machines, and agitator washing machines. Some laundry equipment also has a drying function, such as washer-dryer combos.

[0003] Taking drum washing machines as an example, existing drum washing machines all involve putting clothes into the inner drum, and the rotation of the inner drum drives the clothes to rotate. While this type of drum washing machine is acceptable for washing large items of clothing, it is not suitable for washing underwear. Underwear is generally made of thinner materials, and some are made of high-end materials such as silk, which are prone to wear and tear. The machine washing method, where the inner drum directly drives the underwear to rotate, can easily damage the underwear. Therefore, users generally use hand washing for underwear, resulting in a poor user experience. Alternatively, they may purchase a separate small underwear washing machine to wash underwear, which increases the user's laundry costs and makes it impossible to place a separate underwear washing machine when there is insufficient indoor space, which also leads to a poor user experience.

[0004] Therefore, there is a need in the field for a new type of laundry equipment to solve the above problems. Summary of the Invention

[0005] The present invention aims to solve the above-mentioned technical problem, namely, to solve the problem that existing laundry equipment is inconvenient for machine washing underwear.

[0006] This invention provides a washing device, comprising an outer drum and an inner drum rotatably disposed within the outer drum. The washing device also includes a washing chamber, which comprises a sealing shell, a sealing cover for opening and closing the sealing shell, and a chamber seal capable of sealing the sealing shell and the sealing cover. The sealing shell is detachably connected to the inner wall of the inner drum.

[0007] A drain outlet is formed on the sealing shell, and a centrifugal drain valve is provided on the drain outlet. The centrifugal drain valve is configured to open the drain outlet when the sealing shell is connected to the inner wall of the inner cylinder and the rotation speed of the inner cylinder is greater than or equal to a set rotation speed.

[0008] In the preferred embodiment of the above-mentioned washing equipment, the centrifugal drain valve includes a valve housing, a valve core, and a resilient reset member. The valve housing communicates with the drain outlet and has a water passage formed on it. The valve core is slidably connected to the valve housing, and the resilient reset member is disposed between the valve housing and the valve core.

[0009] When the sealing shell is connected to the inner wall of the inner cylinder and the rotational speed of the inner cylinder is greater than or equal to the set rotational speed, the valve core, under the action of centrifugal force, overcomes the elastic force of the elastic reset member to open the drain port, thereby connecting the drain port with the water inlet.

[0010] When the sealing shell is connected to the inner wall of the inner cylinder and the rotational speed of the inner cylinder is less than the set rotational speed, the valve core is reset under the elastic force of the elastic reset member to close the drain port, thereby disconnecting the drain port from the water inlet.

[0011] In the preferred embodiment of the above-mentioned washing equipment, a port is formed on the valve housing, and the valve core is slidably connected to the port.

[0012] In the preferred embodiment of the above-mentioned washing equipment, the valve housing includes a cavity shell and a cover, the cover is fitted onto the cavity shell, the cavity shell is connected to the drain outlet, the through-hole is formed on the cover, the water inlet is formed on the cavity shell and / or the cover, and the elastic reset member is disposed between the valve core and the cover.

[0013] In the preferred embodiment of the above-mentioned washing equipment, an annular groove is formed at one end of the valve core near the drain outlet, and an annular seal is provided in the annular groove to seal the drain outlet.

[0014] In the preferred embodiment of the aforementioned washing equipment, the centrifugal drain valve includes a valve housing, a valve core, an elastic reset element, a support element, a lever, and a counterweight. The valve housing communicates with the drain outlet, has a water inlet formed on it, and a through-hole formed on it. The valve core is slidably connected to the through-hole. The elastic reset element is disposed between the valve housing and the valve core. The valve core and the counterweight are respectively connected to both ends of the lever. The lever is rotatably connected to the support element, and the support element is disposed on the sealing shell.

[0015] When the sealing shell is connected to the inner wall of the inner cylinder and the rotational speed of the inner cylinder is greater than or equal to the set rotational speed, the counterweight, under the action of centrifugal force, causes the valve core to overcome the elastic force of the elastic reset member, thereby opening the drain outlet and connecting the drain outlet with the water inlet.

[0016] When the sealing shell is connected to the inner wall of the inner cylinder and the rotational speed of the inner cylinder is less than the set rotational speed, the valve core is reset under the elastic force of the elastic reset member to close the drain port, thereby disconnecting the drain port from the water inlet.

[0017] In the preferred embodiment of the above-mentioned washing equipment, the valve housing includes a cavity shell and a cover, the cover is fitted onto the cavity shell, the cavity shell is connected to the drain outlet, the through-hole is formed on the cover, the water inlet is formed on the cavity shell and / or the cover, and the elastic reset member is disposed between the valve core and the cover.

[0018] In the preferred embodiment of the above-mentioned washing equipment, an annular groove is formed at one end of the valve core near the drain outlet, and an annular seal is provided in the annular groove to seal the drain outlet.

[0019] In the preferred embodiment of the above-mentioned washing equipment, the distance between the connection point of the lever and the support and the counterweight is greater than the distance between the connection point of the lever and the support and the valve core.

[0020] In the preferred embodiment of the above-mentioned washing equipment, the sealing shell is connected to the inner wall of the inner drum through a magnetic structure.

[0021] With the above technical solution, the present invention can set up a separate washing chamber for washing clothes in the inner drum, thereby avoiding damage to clothes due to large-scale movement. In particular, it enables the washing equipment to wash underwear, that is, clothes can be placed in the washing chamber and the inner drum separately, so that the washing of clothes can be carried out in different areas. The washing of clothes in the inner drum and the washing of clothes in the washing chamber do not affect each other, realizing zoned washing and avoiding cross-contamination. Underwear can also be washed by the washing equipment, which improves the applicability of the washing equipment to clothes and enables underwear to be machine washed. If the washing chamber is not needed, it can be removed at any time without affecting the normal use of the washing equipment. The centrifugal drain valve can open when the inner drum reaches the set speed, thereby draining the water in the washing chamber and avoiding the need for manual drainage, realizing automatic drainage.

[0022] Furthermore, when the user needs to use the washing chamber, the washing chamber can be installed on the inner wall of the inner drum. When the rotation speed of the inner drum reaches the set speed, the valve core can overcome the elastic force of the elastic reset element to open the drain port and discharge the water, thus avoiding the need for manual drainage and realizing automatic drainage.

[0023] Furthermore, when the user needs to use the washing chamber, the washing chamber can be installed on the inner wall of the inner drum. When the inner drum reaches the set speed, the counterweight can enable the valve core to overcome the elastic force of the elastic reset element, thereby opening the drain port and draining the water, avoiding the need for manual drainage and realizing automatic drainage.

[0024] Furthermore, by using a magnetic structure to connect the washing chamber to the inner wall of the inner drum, the washing chamber can be quickly installed, and repeated disassembly and assembly will not damage the inner drum, thus extending the service life of the equipment. Attached Figure Description

[0025] The preferred embodiments of the present invention will now be described with reference to the accompanying drawings and a drum washing machine.

[0026] In the picture:

[0027] Figure 1 This is a schematic diagram of the structure of a drum washing machine according to a first embodiment of the present invention;

[0028] Figure 2 yes Figure 1 A magnified view of a portion at point A;

[0029] Figure 3 This is a schematic diagram of the structure of a second embodiment of the drum washing machine of the present invention;

[0030] Figure 4 yes Figure 3 A magnified view of a portion of point B. Detailed Implementation

[0031] First, those skilled in the art should understand that these embodiments are merely for explaining the technical principles of the present invention and are not intended to limit the scope of protection of the present invention. For example, the washing equipment of the present invention can be a drum washing machine, a top-loading washing machine, an agitator washing machine, a washer-dryer combo, or a double-unit washing machine, etc. Such adjustments to the application do not constitute a limitation on the present invention.

[0032] It should be noted that in the description of this invention, the terms "top," "bottom," "inner," "outer," etc., indicating directions or positional relationships are based on the directions 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 component must have a specific orientation or must be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this invention.

[0033] Furthermore, it should be noted that, in the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "setting," "connection," and "linking" should be interpreted broadly. For example, "connection" can refer to a detachable connection or an integral connection; it can be a direct connection or an indirect connection through intermediate components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0034] Addressing the issue raised in the background art regarding the inconvenience of machine washing underwear in existing drum washing machines, this invention provides a drum washing machine designed to prevent damage to clothing due to vigorous movement by setting a separate washing chamber within the inner drum. This allows for separate washing of clothes in different areas, with the washing of clothes in the inner drum and the washing chamber operating independently, achieving zoned washing and preventing cross-contamination. This also enables the washing of underwear in the drum washing machine, expanding its applicability to various garment types. The washing chamber can be detached at any time when not in use, without affecting the normal operation of the drum washing machine. A centrifugal drain valve opens when the inner drum reaches a set speed, draining water from the washing chamber and eliminating the need for manual drainage, thus achieving automatic drainage.

[0035] Specifically, such as Figure 1 and 3 As shown, the drum washing machine of the present invention includes a cabinet, an outer drum, and an inner drum 1. The outer drum is connected to the frame of the cabinet by a vibration damping component (e.g., a combination of a shock absorber and a suspension spring). The inner drum 1 is rotatably disposed in the outer drum. The inner drum 1 is driven to rotate by a direct drive motor or a combination of a conventional motor and a belt. The inner drum 1 has a water passage hole to ensure that water in the outer drum can enter the inner drum 1. The panel of the cabinet has a clothes inlet. The outer drum and the clothes inlet are connected by a window gasket. The outer drum is used to hold washing water, and the inner drum 1 is used to drive the clothes to rotate. The window gasket is used to seal the clothes inlet and the outer drum. At least one lifting rib 11 is also provided on the inner wall of the inner drum 1 along the circumference. Of course, the number of lifting ribs 11 is preferably multiple. Multiple lifting ribs 11 are evenly arranged on the inner wall of the inner drum 1 along its circumference. When the inner drum 1 rotates, the lifting ribs 11 can lift the clothes, that is, lift the clothes and then slam them against the inner wall of the inner drum 1, using the principle of club beating to wash the clothes.

[0036] like Figure 1 and 3As shown, the drum washing machine of the present invention also includes a washing chamber 2. The washing chamber 2 includes a sealing shell 21, a sealing cover 22 for opening and closing the sealing shell 21, and a chamber sealing member 23 capable of sealing the sealing shell 21 and the sealing cover 22. The sealing shell 21 is detachably connected to the inner wall of the inner drum 1. The sealing shell 21 can be connected to the inner wall of the inner drum 1 by magnetic attraction, or by snap-fit, screw connection, or other methods. Of course, a combination of various connection methods can also be used to achieve the connection between the sealing shell 21 and the inner wall of the inner drum 1. The washing chamber 2 adopts a closed washing method. When clothes and washing water are placed in the sealed chamber... After the shell 21 is closed, the sealing cover 22 closes the hatch of the sealing shell 21, ensuring that the interior of the washing chamber 2 is isolated from the interior of the inner drum 1. In this case, the inner drum 1 drives the washing chamber 2 to rotate, and the water in the washing chamber 2 tumbles, thereby washing the clothes in the washing chamber 2. The sealing cover 22 can be opened and closed by means of a flip cover, a sliding cover, or a snap-fit ​​type. After the sealing cover 22 closes the hatch of the sealing shell 21, the chamber seal 23 seals the sealing cover 22 with the hatch, thereby preventing water leakage in the washing chamber 2 and preventing water and other dirt from entering. The chamber seal 23 can be a sealing gasket or a sealing ring, etc.

[0037] This invention places clothes into the washing chamber 2, which rotates with the inner drum 1. The clothes in the washing chamber 2 can only move within the space created by the washing chamber 2, preventing them from moving excessively and violently impacting the inner wall of the inner drum 1, thus avoiding damage. It also prevents the clothes from rubbing against the water inlet of the inner drum 1, which would cause abrasion. The washing chamber 2 is particularly suitable for accommodating underwear, preventing damage to thinner materials such as vests, undershirts, shorts, women's bras, and women's stockings. When the washing chamber 2 is not in use, its sealing shell 21 can be removed from the inner wall of the inner drum 1 and placed outside the drum washing machine, ensuring sufficient space within the inner drum 1 for washing larger items of clothing. When the washing chamber 2 is needed, the sealed shell 21 of the washing chamber 2 can be installed on the inner wall of the inner drum 1. The washing chamber 2 contains clothes, while the inner drum 1 can contain clothes or not. When the inner drum 1 is not filled with clothes, the inner drum 1 only drives the washing chamber 2 to rotate, and the clothes in the washing chamber 2 tumble and are washed in the washing chamber 2. When the inner drum 1 contains clothes, the inner drum 1 drives the washing chamber 2 to rotate, and the clothes in the washing chamber 2 tumble and are washed in the washing chamber 2. The inner drum 1 also drives the clothes in the inner drum 1 to rotate. The water in the outer drum washes the clothes in the inner drum 1. The washing chamber 2 adopts a closed washing method. Due to the existence of the washing chamber 2, the clothes in the washing chamber 2 and the clothes in the inner drum 1 can be washed separately without interfering with each other, thereby achieving separate washing and avoiding cross-contamination. This allows clothes that cannot be mixed to be placed in the washing chamber 2 and the inner drum 1 to be washed separately by the rotation of the inner drum 1.

[0038] In this invention, a drain outlet 21a is formed on the sealing shell 21, and a centrifugal drain valve 3 is provided on the drain outlet 21a. The centrifugal drain valve 3 is configured to open the drain outlet 21a when the sealing shell 21 is connected to the inner wall of the inner drum 1 and the rotation speed of the inner drum 1 is greater than or equal to the set rotation speed. Those skilled in the art can flexibly set the set rotation speed in practical applications. Preferably, the set rotation speed is greater than the washing speed and rinsing speed of the washing equipment but less than the spin-drying speed. When the inner drum 1 rotates to drive the washing and rinsing of clothes, or when there are no clothes in the inner drum 1 but the inner drum 1 rotates at the washing speed or rinsing speed, the centrifugal drain valve 3 cannot be opened due to the small centrifugal force, thereby ensuring that the water in the washing chamber 2 will not be discharged from the washing chamber 2. When the rotation speed of the inner drum 1 is greater than or equal to the set rotation speed, for example, when the inner drum 1 spins the clothes or when there are no clothes in the inner drum 1 but the inner drum 1 rotates at the spin-drying speed, the centrifugal drain valve 3 is opened due to the large centrifugal force, thereby ensuring that the water in the washing chamber 2 is continuously discharged, so that the clothes in the washing chamber 2 can also be spin-dryed. The preferred setting speed is greater than 70 rpm, and more preferably greater than 100 rpm. Generally, the spin speed of the inner drum 1 of a drum washing machine is greater than or equal to 400 rpm. Therefore, the set speed can be set to less than 400 rpm. For example, the set speed can be 120 rpm, 150 rpm, or 180 rpm, etc.

[0039] The preferred embodiments of the centrifugal drain valve 3 of the present invention will be described below through two examples.

[0040] Example 1

[0041] like Figure 1 and 2As shown, the centrifugal drain valve 3 includes a valve housing 31, a valve core 32, and an elastic reset member 33. The valve housing 31 is connected to the drain port 21a, and a water outlet is formed on the valve housing 31. The valve core 32 is slidably connected to the valve housing 31. The elastic reset member 33 is disposed between the valve housing 31 and the valve core 32. When the sealing shell 21 is connected to the inner wall of the inner cylinder 1 and the rotational speed of the inner cylinder 1 is greater than or equal to the set rotational speed, the valve core 32 overcomes the elastic force of the elastic reset member 33 under the action of centrifugal force to open the drain port 21a, thereby connecting the drain port 21a with the water outlet. When the sealing shell 21 is connected to the inner wall of the inner cylinder 1 and the rotational speed of the inner cylinder 1 is less than the set rotational speed, the valve core 32 resets under the action of the elastic reset member 33 to close the drain port 21a, thereby disconnecting the drain port 21a from the water outlet. Preferably, the elastic reset member 33 is a compression spring; however, other elastic structures can also be used. The valve housing 31 can be a one-piece structure or a split structure, such as a combination of a cavity shell 311 and a cover 312. The sliding fit between the valve housing 31 and the valve core 32 can be achieved by having a groove in the valve housing 31 that mates with the valve core 32, or by directly forming a through-hole on the valve housing 31, with the valve core 32 slidingly connected to this through-hole. The valve core 32 can either directly block the drain port 21a, or have a sealing element on the side of the valve core 32 near the drain port 21a to seal it.

[0042] Preferably, with Figure 1 and 2Taking the orientation shown as an example, a through-hole is formed on the valve housing 31, and the valve core 32 is slidably connected to the through-hole. Specifically, the top of the valve housing 31 is connected to the drain outlet 21a and the valve housing 31 is located outside the washing chamber 2. A through-hole is formed at the bottom of the valve housing 31, and the valve core 32 is slidably connected to the through-hole so that a part of the valve core 32 can extend out of the valve housing 31. The valve housing 31 includes a cavity 311 and a cover 312. The cover 312 covers the cavity 311. The cavity 311 is connected to the drain port 21a. The through port is formed on the cover 312. The water passage can be formed on the cavity 311, or on the cover 312, or both the cavity 311 and the cover 312. An elastic reset member 33 (here a compression spring) is disposed between the valve core 32 and the cover 312. An annular groove is formed at the end of the valve core 32 near the drain port 21a. An annular seal 34 (here an annular sealing ring) is disposed in the annular groove to seal the drain port 21a. During the rotation of the inner drum 1, the higher the rotation speed of the inner drum 1, the greater the centrifugal force generated by the valve core 32. When the inner drum 1 reaches the set speed, the centrifugal force generated by the valve core 32 overcomes the elastic force of the compression spring, causing the valve core 32 to begin to move outward, that is, the valve core 32 moves in the direction of moving out of the valve housing 31. The annular sealing ring at the end of the valve core 32 loses its sealing contact with the drain outlet 21a, thereby opening the drain outlet 21a and connecting it with the water inlet, thus draining the water from the washing chamber 2 into the outer drum. The water in the outer drum can be discharged outside the washing machine through the drain pipe of the drum washing machine. When the rotation speed of the inner drum 1 does not reach the set speed, the centrifugal force generated by the valve core 32 cannot overcome the elastic force of the compression spring. The compression spring can firmly press the valve core 32 onto the drain outlet 21a, causing the annular sealing ring at the end of the valve core 32 to abut and seal against the drain outlet 21a, thereby closing the drain outlet 21a and preventing the water in the washing chamber 2 from draining out. With this setup, by setting the appropriate spring force and valve core 32 mass, the valve core 32 can open the drain port 21a only when the inner cylinder 1 reaches the set rotation speed.

[0043] Example 2

[0044] like Figure 3 and 4As shown, the centrifugal drain valve 3 includes a valve housing 31, a valve core 32, an elastic reset member 33, a support member 35, a lever 36, and a counterweight 37. The valve housing 31 communicates with the drain port 21a, and a through port and a through opening are formed on the valve housing 31. The valve core 32 is slidably connected to the through opening. The elastic reset member 33 is disposed between the valve housing 31 and the valve core 32. The valve core 32 and the counterweight 37 are respectively connected to the two ends of the lever 36. The lever 36 is rotatably connected to the support member 35, and the support member 35 is disposed on the sealing shell 21. When the sealing shell 21 is connected to the inner wall of the inner cylinder 1 and the rotational speed of the inner cylinder 1 is greater than or equal to the set rotational speed, the counterweight 37, under the action of centrifugal force, causes the valve core 32 to overcome the elastic force of the elastic reset member 33 to open the drain port 21a, thereby connecting the drain port 21a with the water inlet. When the sealing shell 21 is connected to the inner wall of the inner cylinder 1 and the rotational speed of the inner cylinder 1 is less than the set rotational speed, the valve core 32, under the action of the elastic reset member 33, resets to close the drain port 21a, thereby disconnecting the drain port 21a from the water inlet. The elastic reset member 33 is preferably a compression spring; however, other elastic structures can also be used. The valve shell 31 can be an integral shell structure or a split structure, for example, the valve shell 31 can be a combination of a cavity shell 311 and a cover 312. The valve core 32 can directly block the drain port 21a, or it can have a sealing member on the side of the valve core 32 near the drain port 21a to seal the drain port 21a. The support member 35 can be a support rod, a support base, or a support frame, etc.

[0045] Preferably, with Figure 3 and 4Taking the orientation shown as an example, the bottom of the valve housing 31 is connected to the drain outlet 21a and the valve housing 31 is located inside the washing chamber 2. The valve housing 31 includes a cavity 311 and a cover 312. The cover 312 covers the cavity 311. The cavity 311 is connected to the drain outlet 21a. The opening is formed on the top of the cover 312. The water outlet can be formed on the cavity 311, or on the cover 312, or both the cavity 311 and the cover 312. The elastic reset member 33 (here a compression spring) is arranged between the valve core 32 and the cover 312. The valve core 32 has an annular groove at one end near the drain outlet 21a. An annular seal 34 (here an annular sealing ring) is arranged in the annular groove to seal the drain outlet 21a. In this embodiment, the valve core 32 is preferably a lightweight valve core, meaning the lower the mass of the valve core 32, the better. This allows the interaction between the levers 36 to be achieved primarily through the counterweight 37 and the compression spring, thereby reducing design complexity. In this invention, the connection point between the lever 36 and the support member 35 is referred to as the lever support point. During the rotation of the inner cylinder 1, as the rotational speed of the inner cylinder 1 increases, the centrifugal force generated by the counterweight 37 increases, and the torque on the counterweight 37 side (the product of force and lever arm, i.e., the product of the centrifugal force generated by the counterweight 37 and the distance between the counterweight 37 and the lever support point) also increases. When the inner cylinder 1 reaches the set rotational speed, the torque generated by the counterweight 37 overcomes the spring force of the compression spring and the torque generated by the centrifugal force of the valve core 32 (the product of force and lever arm, i.e., the sum of the centrifugal force of the valve core 32 and the spring force of the counterweight 37). The product of the distances between the valve core 32 and the lever support point causes the valve core 32 to begin moving outward, i.e., the valve core 32 moves out of the valve housing 31. The annular sealing ring at the end of the valve core 32 loses its seal against the drain outlet 21a, thereby opening the drain outlet 21a and connecting it to the water outlet, thus draining the water from the washing chamber 2 into the outer drum. The water in the outer drum can then be discharged outside the washing machine through the drain pipe. When the rotation speed of the inner drum 1 does not reach the set speed, the torque generated by the counterweight 37 cannot overcome the torque generated by the spring force and the centrifugal force of the valve core 32. The spring can firmly press the valve core 32 onto the drain outlet 21a, causing the annular sealing ring at the end of the valve core 32 to seal against the drain outlet 21a, thereby closing the drain outlet 21a and preventing the water in the washing chamber 2 from draining out. With this setup, by setting the appropriate spring force, valve core 32 mass, counterweight 37 mass, and lever arm of counterweight 37 and valve core 32, the valve core 32 can be made to open the drain port 21a when the inner cylinder 1 reaches the set speed.It should be noted that when the inner cylinder 1 has not reached the set speed, the torque generated by the spring force of the compression spring and the centrifugal force generated by the valve core 32 needs to be greater than the torque generated by the centrifugal force of the counterweight 37. When the inner cylinder 1 reaches the set speed, the torque generated by the spring force of the compression spring and the centrifugal force generated by the valve core 32 needs to be less than the torque generated by the centrifugal force of the counterweight 37. When the valve core 32 is made of lightweight material, the centrifugal force generated by the valve core 32 can be ignored during the rotation of the inner cylinder 1. At this time, the spring force of the compression spring, the distance between the valve core 32 and the lever support point, and the distance between the counterweight 37 and the lever support point are all fixed. The only variable is the centrifugal force generated by the counterweight 37. Therefore, the movement of the valve core 32 can be controlled by designing the centrifugal force generated by the counterweight 37. Preferably, the distance between the connection point of lever 36 and support 35 and the counterweight 37 is greater than the distance between the connection point of lever 36 and support 35 and valve core 32. This setting allows for a significant change in the torque generated on the counterweight side. Thus, when the inner cylinder 1 rotates, the torque on the counterweight side can change noticeably in a short time, exceeding the torque generated by the spring force and the centrifugal force of the valve core 32. This forces the valve core 32 to move and open the drain outlet 21a. Again, assuming the valve core 32 is made of a lightweight material and the centrifugal force generated by the valve core 32 during the rotation of the inner cylinder 1 is negligible, and assuming the spring force is... If the distance between the valve core 32 and the lever support point is 10cm, then the torque generated by the compression spring is 1N-M. Assuming the weight of the counterweight 37 is 5N and the distance between the counterweight 37 and the lever support point is 15cm, then the torque generated by the counterweight 37 is 0.75NM. Since the torque generated by the compression spring is greater than the torque generated by the counterweight 37, the valve core 32 cannot move, thus closing the drain outlet 21a. When the inner cylinder 1 rotates, it will cause the counterweight 37 to generate centrifugal force. As the rotation speed of the inner cylinder 1 increases, the centrifugal force of the counterweight 37 will cause the torque generated by the counterweight 37 to increase, eventually exceeding the torque generated by the compression spring, causing the valve core 32 to move and opening the drain outlet 21a. In this embodiment, the counterweight 37 is preferably integrated with one end of the lever 36. For example, the counterweight 37 and the lever 36 can be a weight with a rod, hinged to the support member 35, and then the end of the rod is hinged to one end of the valve core 32. Figure 4 The top of the valve core 32 shown.

[0046] Preferably, in this invention, the sealing shell 21 is connected to the inner wall of the inner cylinder 1 via a magnetic attraction structure. Specifically, the bottom shape of the sealing shell 21 can be adapted to the shape of the inner wall of the inner cylinder 1, so that the sealing shell 21 can fit snugly against the inner wall of the inner cylinder 1. A permanent magnet 4 can be provided at the bottom of the sealing shell 21, which can achieve magnetic adsorption onto the metal material of the inner cylinder 1 (the material of the inner cylinder 1 needs to be selected to achieve magnetic adsorption with magnetic materials). Of course, as... Figure 1 and 3As shown, multiple rigid legs can also be provided at the bottom of the sealing shell 21. The bottom shape of the rigid legs is adapted to the inner wall shape of the inner cylinder 1. At least one rigid leg is provided with a permanent magnet 4 at its bottom. The permanent magnet 4 can achieve magnetic adsorption to the metal material inner cylinder 1 (the material of the inner cylinder 1 needs to be selected to achieve magnetic adsorption with magnetic materials).

[0047] The technical solution of the present invention has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will all fall within the scope of protection of the present invention.

Claims

1. A washing machine, the washing machine comprising an outer drum and an inner drum rotatably disposed within the outer drum, characterized in that, The washing equipment also includes a washing chamber, which comprises a sealing shell, a sealing cover for opening and closing the sealing shell, and a chamber seal capable of sealing the sealing shell and the sealing cover. The sealing shell is detachably connected to the inner wall of the inner drum. The washing chamber employs a closed-loop washing system. After the clothes and washing water are placed into the sealed shell, the sealing cover closes the opening of the sealed shell, isolating the interior of the washing chamber from the interior space of the inner drum. A drain outlet is formed on the sealing shell, and a centrifugal drain valve is provided on the drain outlet. The centrifugal drain valve is configured to open the drain outlet when the sealing shell is connected to the inner wall of the inner cylinder and the rotation speed of the inner cylinder is greater than or equal to a set rotation speed.

2. The washing equipment according to claim 1, characterized in that, The centrifugal drain valve includes a valve body, a valve core, and a resilient reset element. The valve body communicates with the drain port and has a water passage formed on it. The valve core is slidably connected to the valve body, and the resilient reset element is disposed between the valve body and the valve core. When the sealing shell is connected to the inner wall of the inner cylinder and the rotational speed of the inner cylinder is greater than or equal to the set rotational speed, the valve core, under the action of centrifugal force, overcomes the elastic force of the elastic reset member to open the drain port, thereby connecting the drain port with the water inlet. When the sealing shell is connected to the inner wall of the inner cylinder and the rotational speed of the inner cylinder is less than the set rotational speed, the valve core is reset under the elastic force of the elastic reset member to close the drain port, thereby disconnecting the drain port from the water inlet.

3. The washing equipment according to claim 2, characterized in that, The valve housing has a through-hole, and the valve core is slidably connected to the through-hole.

4. The washing equipment according to claim 3, characterized in that, The valve housing includes a cavity and a cover. The cover is fitted onto the cavity, and the cavity is in communication with the drain outlet. The through-hole is formed on the cover, and the water inlet is formed on the cavity and / or the cover. The elastic reset member is disposed between the valve core and the cover.

5. The washing equipment according to claim 2, characterized in that, An annular groove is formed at one end of the valve core near the drain outlet, and an annular seal is provided in the annular groove to seal the drain outlet.

6. The washing equipment according to claim 1, characterized in that, The centrifugal drain valve includes a valve body, a valve core, an elastic reset element, a support element, a lever, and a counterweight. The valve body communicates with the drain outlet and has a through-hole and a through-port. The valve core is slidably connected to the through-port. The elastic reset element is disposed between the valve body and the valve core. The valve core and the counterweight are respectively connected to the two ends of the lever. The lever is rotatably connected to the support element, and the support element is disposed on the sealing shell. When the sealing shell is connected to the inner wall of the inner cylinder and the rotational speed of the inner cylinder is greater than or equal to the set rotational speed, the counterweight, under the action of centrifugal force, causes the valve core to overcome the elastic force of the elastic reset member, thereby opening the drain outlet and connecting the drain outlet with the water inlet. When the sealing shell is connected to the inner wall of the inner cylinder and the rotational speed of the inner cylinder is less than the set rotational speed, the valve core is reset under the elastic force of the elastic reset member to close the drain port, thereby disconnecting the drain port from the water inlet.

7. The washing equipment according to claim 6, characterized in that, The valve housing includes a cavity and a cover. The cover is fitted onto the cavity, and the cavity is in communication with the drain outlet. The through-hole is formed on the cover, and the water inlet is formed on the cavity and / or the cover. The elastic reset member is disposed between the valve core and the cover.

8. The washing equipment according to claim 6, characterized in that, An annular groove is formed at one end of the valve core near the drain outlet, and an annular seal is provided in the annular groove to seal the drain outlet.

9. The washing equipment according to claim 6, characterized in that, The distance between the connection point of the lever and the support and the counterweight is greater than the distance between the connection point of the lever and the support and the valve core.

10. The washing apparatus according to any one of claims 1 to 9, characterized in that, The sealing shell is connected to the inner wall of the inner cylinder via a magnetic attraction structure.

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