Washing barrel assembly and washing equipment

Abstract

The invention provides a washing bucket assembly and washing equipment. The washing bucket assembly comprises a washing bucket; the water stirring component extends upwards from the bottom of the washing barrel and is rotatably arranged in the washing barrel; the middle or the top of the water stirring component is provided with a part with the maximum radius, the part with the maximum radius of the water stirring component directly faces the barrel bottom, and the space between the part and the barrel bottom is used for washing clothes; and a drainage port and a drainage valve for keeping the drainage port normally closed are arranged on the barrel bottom on the periphery of the water stirring component. The space between the maximum radius of the water stirring component and the barrel bottom can be used for washing clothes, an impeller disk is omitted, the surface, located below the maximum radius, of the water stirring component and the inner surface, on the periphery of the water stirring component, of the barrel bottom can make contact with the clothes, and dirt is prevented from being attached to the surfaces of the water stirring component and the barrel bottom; therefore, the problem that dirt is easily hidden between the water stirring component and the barrel bottom and discharge of washing water is hindered is effectively avoided, the water discharge speed of the washing barrel assembly is guaranteed, and user experience is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of clothing treatment, and particularly relates to a washing tub assembly, and also relates to a washing device having the washing tub assembly. Background Art

[0002] As a convenient clothing cleaning device, the washing machine has been widely used in the public's life. Existing washing machines are divided into drum washing machines and pulsator washing machines. Among them, the pulsator washing machine is favored by the majority of users due to its good cleaning effect.

[0003] The pulsator washing machine usually includes a washing tub and a water stirring member, and the water stirring member is arranged at the bottom of the washing tub. When the pulsator washing machine works, the rotation of the water stirring member drives the washing water in the washing tub to rotate, so as to realize the washing of the clothes to be washed in the washing tub. The existing water stirring member of the pulsator washing machine usually has a flat pulsator disk, and the clothes in the washing tub are agitated by the rotation of the pulsator disk.

[0004] Chinese invention patent with the application number CN201811209809.X provides a drainage device, a washing machine and its control method for a washing machine. The washing machine includes an inner tub and a water collecting device. A drainage hole is opened at the bottom of the inner tub. During the washing process, there is no water between the inner tub and the water collecting device. During the drainage process and the dehydration process, the water in the inner tub enters the water collecting device and is discharged by it; the drainage device includes a sealing mechanism and a locking mechanism. The sealing mechanism includes a plugging component and a driving component. The plugging component is installed on the drainage port to keep it normally closed. The driving component has an output end that reciprocates along a direction parallel to the central axis of the inner tub. The locking mechanism locks and positions the inner tub. The output end of the driving component reciprocates, and the plugging component is pushed out to open the drainage hole / reset to close the drainage hole.

[0005] In the above solution, the drainage hole is arranged below the pulsator disk.

[0006] During washing, dirt, lint and other impurities on the clothes are likely to accumulate in the gap between the bottom surface of the pulsator disk and the washing tub, and it is impossible to effectively clean them simply by flushing. The dirt and lint are prone to breed bacteria in a humid environment for a long time, bringing a bad user experience to the user; moreover, during drainage, the washing water needs to flow through the gap between the pulsator disk and the washing tub to the drainage port at the bottom of the washing tub. The dirt accumulated between the bottom surface of the pulsator disk and the washing tub hinders the drainage of the washing water, resulting in the problem of slow drainage speed of the pulsator washing machine.

[0007] Therefore, designing a washing tub assembly that can avoid the accumulation of dirt between the water stirring member and the bottom of the washing tub has become a technical problem that needs to be solved urgently by those skilled in the art.

[0008] In addition, for a tubless washing machine, since its drain outlet is provided on the tubless inner tub, when draining water, the drain valve opens the drain outlet, and the clothes in the inner tub are likely to enter the drain outlet, causing the drain valve to not be completely closed, thus resulting in a water leakage problem.

[0009] Therefore, designing a washing tub assembly that can prevent the clothes in the tub from entering the drain outlet during drainage has become a technical problem that needs to be urgently solved by those skilled in the art.

[0010] In view of this, the present invention is specifically proposed. Summary of the Invention

[0011] An object of the present invention is to provide a washing tub assembly that can avoid the problem of dirt and scale accumulation between the water stirring member and the bottom of the washing tub.

[0012] To solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0013] A washing tub assembly includes a washing tub; and a water stirring member that extends upward from the bottom of the washing tub and is rotatably disposed in the washing tub; the middle or top of the water stirring member has a maximum radius, and the space between the maximum radius of the water stirring member and the bottom of the tub, which faces the bottom of the tub, is used for washing clothes; a drain outlet is provided on the bottom of the tub outside the outer periphery of the water stirring member, and a drain valve for keeping the drain outlet normally closed.

[0014] Another object of the present invention is to provide a washing tub assembly to solve the problem that in the existing washing tub assembly during drainage, the clothes in the tub are likely to enter the drain outlet, hindering the drain valve from closing the drain outlet.

[0015] To solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0016] Furthermore, a drainage portion is provided at the drain outlet, the drainage portion covers the drain outlet, and a plurality of drainage holes penetrating the drainage portion for the washing water to pass through are provided on the drainage portion.

[0017] Furthermore, the area of the bottom of the tub extending from the lower end of the water stirring member to the tub wall can be used as a washing surface, the drain outlet is provided on the washing surface of the bottom of the tub, and at least a part of the middle of the drainage portion protrudes into the washing tub and is higher than the washing surface of the bottom of the tub.

[0018] Furthermore, the drainage portion is formed on the bottom of the washing tub; or, the drainage portion is detachably installed on the bottom of the washing tub.

[0019] Furthermore, the drainage portion is detachably installed inside the bottom of the washing tub, the middle of the drainage portion is disposed opposite to the drain outlet, and the drainage portion is detachably connected to the bottom of the tub outside the periphery of the drain outlet near its edge.

[0020] Further, a groove is provided on the bottom of the washing tub around the drain opening, and the shape of the groove is adapted to the shape of the drain part, and the drain part is embedded in the groove;

[0021] Preferably, the upper end surface of the drain part near its edge is substantially flush with the inner surface of the tub bottom.

[0022] Further, the drain part is magnetically connected to the bottom of the washing tub.

[0023] Further, a drain cavity is provided at the bottom of the bottom of the washing tub, and the drain cavity extends downward from the bottom of the tub around the drain opening. The valve plug of the drain valve is arranged in the drain cavity and is used to open or close the lower end of the drain cavity.

[0024] Further, the drain cavity is formed on the bottom of the tub.

[0025] Further, the drain cavity includes a first reduced-diameter section and a second reduced-diameter section that extend downward from top to bottom and whose inner diameter gradually decreases in the direction from top to bottom. The lower end of the first reduced-diameter section is connected to the upper end of the second reduced-diameter section through a connecting section that extends inward from the lower end of the first reduced-diameter section to the inner circumference;

[0026] The valve plug moves from the end with a larger inner diameter of the second reduced-diameter part to the end with a smaller inner diameter to block the drain cavity.

[0027] Further, the connecting section extends in the horizontal direction, or the connecting section inclines downward in the direction from the outer circumference to the inner circumference.

[0028] Further, the water-stirring member includes a support column coaxially arranged with the washing tub, and water-stirring ribs protruding from the side wall of the support column; Clothes can be washed in the space jointly formed by the bottom of the washing tub, the side wall of the support column and the wall of the washing tub.

[0029] Further, the support column is arranged with a variable diameter along the axis below the maximum radius of the water-stirring member, and includes a connected first extension section and a second extension section;

[0030] The side wall of the first extension section extends upward from the bottom of the washing tub and is used to guide the clothes to move towards the maximum radius of the water-stirring member during washing;

[0031] The side wall of the second extension section extends from the upper end of the first extension section to the outer circumference and inclines upward, and extends to the height where the maximum radius of the water-stirring member is located, and is used to guide the clothes below this position to move towards the outer circumference during washing.

[0032] Further, the water-stirring ribs have a certain extension length along the axis of the washing tub and extend from the side wall of the first extension section to the side wall of the second extension section;

[0033] A plurality of water-stirring ribs are arranged at intervals along the circumference of the support column, and the interval angle between adjacent two water-stirring ribs is such that clothes can be washed in the interval area between adjacent two water-stirring ribs;

[0034] Preferably, the distance between the side of the water-stirring rib away from the axis of the water-stirring member and the axis of the water-stirring member increases with the increase of the height.

[0035] The present invention also provides a washing device, including the above-mentioned washing tub assembly; and,

[0036] a driving device, which is respectively in transmission connection with the washing tub and the water-stirring member, and is used to drive the washing tub and the water-stirring member to rotate simultaneously or alternately during washing, so as to drive at least part of the clothes to move in the area below the maximum radius of the water-stirring member for washing.

[0037] After adopting the above technical solutions, the present invention has the following beneficial effects compared with the prior art.

[0038] 1. By setting the maximum radius of the water-stirring member at the top or middle of the water-stirring member, and the space between the maximum radius of the water-stirring member and the bottom of the tub can be used for washing clothes, the wave wheel disc is cancelled, so that the surface of the water-stirring member below the maximum radius and the inner surface of the bottom of the tub on the outer periphery of the water-stirring member can contact the clothes in the tub. The friction between the clothes and the two can prevent lint or other dirt from adhering to the surfaces of the two, effectively avoiding the problem that it is easy to hide dirt between the water-stirring member and the bottom of the tub and hinder the drainage of washing water, ensuring the drainage speed of the washing tub assembly and improving the user experience.

[0039] 2. By setting a drainage part at the drainage port and arranging drainage small holes on the drainage part, and draining water through the drainage small holes, it can prevent clothes from entering the drainage port and hindering the closing of the drainage valve, and ensure the sealing performance of the drainage valve for the drainage port.

[0040] 3. By setting the middle part of the drainage part protruding from the washing surface of the washing tub, on the one hand, it can enrich the structure of the washing surface and improve the washing effect on the clothes, and on the other hand, it can improve the friction effect of the clothes on the drainage part, thereby avoiding the blockage of the drainage small holes.

[0041] 4. By setting the drainage part to be embedded in the groove at the bottom of the washing tub and magnetically connected to the bottom of the tub, it is convenient for users to remove the drainage part for cleaning. At the same time, during the production process, it is convenient for users to install the drainage valve.

[0042] 5. In the present invention, there is a certain distance between the maximum radius of the water-stirring member in the washing tub and the bottom of the tub. During washing, the driving device is used to drive the washing tub and the water-stirring member to rotate relatively, which can drive the clothes to move below the maximum radius of the water-stirring member for washing. As a result, the clothes can come into full contact with the outer surface of the water-stirring member in the area below the maximum radius and the inner wall of the washing tub, effectively avoiding the problem that dirt and scale are easily hidden between the water-stirring member and the bottom of the tub and are difficult to clean, and improving the user experience. On the other hand, the clothes will not cover the water-stirring member in a large area, reducing the resistance of the clothes to the rotation of the water-stirring member, and thus being beneficial to reducing the power consumption of the motor that drives the water-stirring member to rotate by the driving device.

[0043] The following further describes in detail the specific embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] The accompanying drawings, as a part of the present invention, are used to provide a further understanding of the present invention. The schematic embodiments and descriptions thereof of the present invention are used to explain the present invention, but do not constitute an improper limitation of the present invention. Obviously, the accompanying drawings in the following description are only some embodiments, and those of ordinary skill in the art can obtain other drawings based on these drawings without creative efforts. In the drawings:

[0045] Figure 1 is a schematic structural diagram of the washing tub assembly when the drain valve is opened in Embodiment 1 of the present invention;

[0046] Figure 2 is a schematic structural diagram of the washing tub assembly when the drain valve is closed in Embodiment 1 of the present invention;

[0047] Figure 3 is a schematic structural diagram of the drainage part in Embodiment 1 of the present invention;

[0048] Figure 4 is a cross-sectional view of the washing tub assembly in Embodiment 2 of the present invention;

[0049] Figure 5 is Embodiment of the present invention Figure 4 an enlarged view of C;

[0050] Figure 6 is a cross-sectional view of a water seal structure in Embodiment 2 of the present invention;

[0051] Figure 7 is an assembly diagram of another water seal structure in Embodiment 2 of the present invention;

[0052] Figure 8 is a cross-sectional view of the washing tub assembly in Embodiment 3 of the present invention;

[0053] Figure 9 is Embodiment of the present invention Figure 8Enlarged view at B in the [Chinese context];

[0054] Figure 10 It is a schematic diagram of separately arranging the first water seal structure in the third embodiment of the present invention;

[0055] Figure 11 It is a schematic diagram of simultaneously arranging the first and second water seal structures in the third embodiment of the present invention;

[0056] Figure 12 It is a cross-sectional view of the washing tub assembly in the fourth embodiment of the present invention;

[0057] Figure 13 It is a schematic diagram of the water stirring member in the fourth embodiment of the present invention;

[0058] Figure 14 It is a schematic diagram of the water stirring member in the fifth embodiment of the present invention.

[0059] Explanation of main elements in the figure: 100, washing tub; 100-1, installation groove; 100-2, extension wall; 100-31, washing surface; 100-32, drain port; 100-34, drain small hole; 100-35, drain part; 200, water stirring member; 210, support column; 210-1, assembly part; 210-2, installation cavity; 210-3, assembly hole; 210-4, sealing groove; 210-5, sealing cover; 210-6, spline groove; 210-7, screw; 210-8, hollow column; 210-9, cavity; 211, first extension section; 212, second extension section; 213, first guiding surface; 214, second guiding surface; 215, connecting part; 220, water stirring rib; 230, water stirring disc; 231, stirring part; 240, water stirring part; 300, stirring shaft; 500, water seal structure; 501, first water seal structure; 502, second water seal structure; 500-1, first extension part; 500-2, second extension part; 500-3, skeleton; 500-4, sealing lip; 500-5, spring ring; 500-6, first sealing lip; 500-7, second sealing lip; 500-8, first rubber section; 500-9, second rubber section; 500-10, third sealing lip; 600, drain valve; 600-1, valve plug; 600-2, driving component; 600-3, elastic component; 700, drain cavity; 701, first reduced diameter section; 702, second reduced diameter section; 703, connecting section. Detailed implementation manners

[0060] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments in conjunction with the accompanying drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0061] In the description of the present invention, it should be noted that the directions or positional relationships indicated by terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “vertical”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0062] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0063] like Figures 1 to 14 As shown, in an embodiment of the present invention, a washing device is introduced, the washing device at least comprising a washing tub 100, a water stirring member 200 and a driving device, wherein the washing tub 100 is used to accommodate the laundry, and the water stirring member 200 is rotatably disposed inside the washing tub 100. When the washing device is working, the washing water in the washing tub 100 is driven to rotate by the rotation of the water stirring member 200, so as to wash the laundry in the washing tub 100.

[0064] In this embodiment, the washing bucket 100 is a bucket without holes. When washing, the washing bucket 100 independently holds washing water. Specifically, the washing device of this embodiment includes the washing bucket 100 and a water collecting device. The bottom of the washing bucket 100 is provided with a drain port 100-32. During the washing process, there is no water between the washing bucket 100 and the water collecting device. During the drainage process and the dehydration process, the water in the washing bucket 100 enters the water collecting device and is discharged therefrom. In this embodiment, the water collecting device can be an outer bucket or a water collecting device only provided at the bottom of the washing bucket 100. In this way, the washing water in the washing bucket 100 is discharged after being discharged to the water collecting device. Therefore, the water collecting device has the function of temporarily storing water. The height of the water collecting device is less than the height of the washing bucket 100.

[0065] The driving device of the washing equipment is respectively connected to the washing tub 100 and the water stirring member 200 for driving the washing tub 100 and the water stirring member 200 to rotate.

[0066] More specifically, the output shaft of the driving device is respectively connected to the stirring shaft 300 and the dehydrating shaft. The stirring shaft 300 is connected to the water stirring member 200 and relatively fixed, and is used to drive the water stirring member 200 to rotate. The dehydrating shaft is fixed to the bottom of the washing tub 100, and is used to drive the washing tub 100 to rotate.

[0067] During washing, the driving device drives the stirring shaft 300 and the dehydrating shaft to rotate simultaneously or alternately, and then drives the water stirring member 200 and the washing tub 100 to rotate simultaneously or alternately, and utilizes the relative rotation between the water stirring member 200 and the washing tub 100 to stir the clothes and the washing water in the tub, so as to achieve a washing effect on the clothes. During dehydration, the driving device drives the stirring shaft 300 and the dehydrating shaft to rotate synchronously at high speed, and then drives the water stirring member 200 and the washing tub 100 to rotate synchronously at high speed, and utilizes centrifugal force to spin dry the clothes in the tub.

[0068] However, when the lint and dirt shed from the clothes during the washing process are mixed into the washing water, if there is a relatively narrow gap structure between the water stirring member 200 and the washing tub 100, these lint and dirt are easily hidden in the gap structure and are difficult to be taken out by the impact force of the water flow during the washing process. Over a long period of time, the gap between the water stirring member 200 and the washing tub 100 will cause dirt to be hidden, bacteria to breed, and cause the problem of secondary pollution of the clothes.

[0069] Embodiment 1

[0070] like Figures 1 to 3 As shown, this embodiment provides a washing device for solving the problem that there is a dead corner between the water stirring member 200 and the washing tub 100 where dirt and grime are hidden and difficult to clean.

[0071] In this embodiment, the water stirring member 200 extends upward from the bottom of the washing tub 100 and is rotatably disposed in the washing tub 100. The middle or top of the water stirring member 200 has a point with a maximum radius. The point with a maximum radius of the water stirring member 200 faces the bottom of the tub, and the space between the two is used for washing clothes.

[0072] Specifically, the washing device described in this embodiment includes a washing tub 100, a water stirring member 200 and a driving device. The water stirring member 200 is rotatably arranged inside the washing tub 100, has a certain height along the axial direction of the washing tub 100, and has a maximum radius along the radial direction of the washing tub 100 at a certain distance from the inner surface of the bottom of the washing tub 100, and the certain distance enables the clothes to be washed below the position where the maximum radius Rmax of the water stirring member 200 is located.

[0073] The driving device is transmission-connected to the washing tub 100 and the water-stirring member 200 respectively, and drives the washing tub 100 and the water-stirring member 200 to rotate simultaneously or alternately during washing, thereby driving the clothes in the tub to move for washing.

[0074] More specifically, in this embodiment, the driving device drives the washing tub 100 and the water stirring member 200 through a speed reduction and clutch device. The speed reduction and clutch device includes a stirring shaft 300 connected to the water stirring member 200 and a dehydration shaft connected to the washing tub 100. During washing, the speed reduction and clutch device executes the washing working condition. Under the drive of the driving device, the stirring shaft 300 and the dehydration shaft rotate simultaneously or alternately. For the case of simultaneous rotation, at least one of the rotation directions and speeds is different, so as to drive a relative rotation between the water stirring member 200 and the washing tub 100 for washing. During dehydration, the speed reduction and clutch device executes the dehydration working condition. Under the drive of the driving device, the stirring shaft 300 and the dehydration shaft rotate synchronously at a high speed, and then drive the water stirring member 200 and the washing tub 100 to rotate synchronously at a high speed for dehydration.

[0075] In the above solution, the specific structure of the speed reduction and clutch device can adopt the structure of the speed reduction clutch in the existing double-power washing equipment.

[0076] In this embodiment, by using the relative rotation between the washing tub 100 and the water stirring member 200 during the washing process, the clothes in the tub can be driven to move in the area below the maximum radius Rmax of the water stirring member 200 for washing. On the one hand, the clothes can be in full contact with the outer surface of the water stirring member 200 and the inner wall of the washing tub 100 in the area below the maximum radius Rmax, effectively avoiding the problem that it is easy to hide dirt and scale between the water stirring member 200 and the bottom of the tub and difficult to clean, and improving the user experience. On the other hand, part or all of the clothes are below the maximum radius Rmax of the water stirring member 200 during washing, rather than covering the water stirring member 200 in a large area, which can significantly reduce the resistance of the clothes to the rotation of the water stirring member 200, and thus is beneficial to reducing the motor energy consumption of the driving device for driving the water stirring member 200 to rotate.

[0077] As a specific implementation manner, during the washing process, the driving device drives the washing tub 100 and the water stirring member 200 to rotate in opposite directions for washing.

[0078] Specifically, during washing, the driving device drives the water stirring member 200 to rotate forward and backward alternately during washing, and at the same time drives the washing tub 100 to rotate forward and backward alternately in the opposite direction to the water stirring member 200. When the water stirring member 200 rotates clockwise, the washing tub 100 rotates counterclockwise; conversely, when the water stirring member 200 rotates counterclockwise, the washing tub 100 rotates clockwise.

[0079] In the above solution, when the washing tub 100 and the water stirring member 200 rotate in opposite directions, their rotation speeds can be the same or different. In the preferred solution, the washing tub 100 and the water stirring member 200 rotate in opposite directions at different rotation speeds, and among them, the rotation speed of the water stirring member 200 is greater than that of the washing tub 100.

[0080] As another specific embodiment, during the washing process, the driving device drives the washing tub 100 and the water-stirring member 200 to rotate in the same direction at different speeds for washing. For example, the rotation speed of the washing tub 100 is less than that of the water-stirring member 200. In this way, relative rotation can also be formed between the washing tub 100 and the water-stirring member 200.

[0081] Similar to the previous specific embodiment, the washing tub 100 and the water-stirring member 200 also rotate forward and backward alternately during the washing process. That is, the washing tub 100 and the water-stirring member 200 rotate clockwise simultaneously at different speeds, and then rotate counterclockwise simultaneously, repeating in a cycle.

[0082] As still another specific embodiment, during the washing process, the driving device drives the washing tub 100 and the water-stirring member 200 to rotate alternately. That is, when the driving device drives the water-stirring member 200 to rotate, the washing tub 100 remains stationary, and when the driving device drives the washing tub 100 to rotate, the water-stirring member 200 remains stationary. In this way, relative rotation can also be formed between the washing tub 100 and the water-stirring member 200.

[0083] It should be noted that in the embodiments of the present invention, the radius of the water-stirring member 200 refers to the distance from the point farthest from the rotation center on the horizontal cross-section obtained by taking a cross-section of the water-stirring member 200 in the horizontal direction to the rotation center.

[0084] Specifically, if the cross-section of the water-stirring member 200 is circular, the radius is the radius R1 of the circular cross-section. If the cross-section of the water-stirring member 200 is non-circular, the radius is the distance R2 from the point farthest from the rotation center on the cross-section to the rotation center.

[0085] In a further solution of this embodiment, there is also a certain distance in the height direction between the maximum radius Rmax of the water-stirring member 200 and the mouth of the washing tub 100, so that the washing water level can be higher than the maximum radius Rmax of the water-stirring member 200, enabling the clothes to be washed above the position where the maximum radius Rmax of the water-stirring member 200 is located.

[0086] In the above solution, clothes can be accommodated for washing both above and below the maximum radius Rmax of the water-stirring member 200 inside the washing tub 100. In this way, the outer surface of the water-stirring member 200 can basically come into contact with the clothes to be washed, generating friction with the clothes, and enhancing the washing effect by increasing the surface area in contact with the clothes.

[0087] In this embodiment, the water stirring component 200 includes a support column 210, which extends along the axial direction of the washing barrel 100 and is coaxially arranged between the washing barrel 100, and a water stirring rib 220 is arranged on the circumferential side of the support column 210 and extends along the axial direction of the support column 210. The lower end of the support column 210 is rotatably matched with the bottom of the washing barrel 100.

[0088] A mounting hole is provided at the center of the bottom of the washing tub 100, and the stirring shaft 300 for driving the water stirring member 200 to rotate is rotatably inserted into the mounting hole. The lower end of the support column 210 is sleeved on the upper end of the stirring shaft 300 and is connected to the stirring shaft 300 through a spline to achieve circumferential positioning; the support column 210 and the stirring shaft 300 are axially positioned by screws or a clamping structure.

[0089] The water stirring member 200 may be disposed as a whole above the inner surface of the bottom of the washing tub 100 , or the lower end of the support column 210 of the water stirring member 200 may be at least partially inserted into the inner surface of the bottom of the washing tub 100 .

[0090] Preferably, the area of the barrel bottom extending outward from the lower end of the support column 210 to the barrel wall is the washing surface 100-31, that is, when washing clothes, the area of the barrel bottom extending outward from the lower end of the support column 210 to the barrel wall can contact the clothes in the barrel, that is, the clothes in the washing barrel 100 can reach the outer periphery of the lower end of the support column 210.

[0091] In this embodiment, by setting a water stirring member 200 that rotates with the bottom of the washing tub 100 through the support column 210, the bottom disc-shaped stirring portion is eliminated, and the area of the bottom of the tub extending outward from the lower end of the support column 210 to the tub wall is set as the washing surface 100-31, so that the clothes can come into contact and friction with the area of the bottom of the tub extending outward from the lower end of the support column 210 to the tub wall, thereby avoiding the accumulation of dirt.

[0092] Preferably, in some possible embodiments, the water stirring member 200 is extended upward from the bottom of the washing tub 100, and the lower end of the water stirring member 200 is sleeved on the upper end of the stirring shaft 300 and is not lower than the bottom surface of the outer periphery of the installation through hole; the lower end of the water stirring member 200 is flush or substantially flush with the side wall of the stirring shaft 300 in the radial direction. The area of the bottom of the washing tub 100 extending outward from the installation through hole to the wall of the washing tub 100 is the washing surface 100-31.

[0093] With the structure that the lower end of the water-stirring member 200 has almost no lower end surface, the bottom of the washing tub 100 is completely exposed to the washing water during washing, and the clothes can come into contact with various parts of the bottom of the tub, especially the area around the installation through hole, avoiding the existence of cleaning dead corners at the bottom of the tub that are easy to hide dirt.

[0094] In this embodiment, the horizontal plane where the installation through hole is located is flush with the washing surface 100-31; alternatively, the washing surface 100-31 has a convex surface on the outer periphery of the installation through hole.

[0095] In some other possible embodiments, an installation groove 100-1 is provided on the upper surface of the bottom of the washing tub 100. The lower end of the support column 210 is inserted into the installation groove 100-1. The outer periphery of the lower end of the support column 210 is rotationally matched with the groove wall of the installation groove 100-1. The upper surface of the bottom of the tub outside the installation groove 100-1 is the washing surface 100-31.

[0096] Preferably, a water seal structure 500 is provided between the outer periphery of the lower end of the support column 210 and the groove wall of the installation groove 100-1. The upper end surface of the water seal structure 500 and the inner surface of the bottom of the tub outside the water seal structure 500 constitute the washing surface 100-31.

[0097] In a specific solution of this embodiment, the washing surface 100-31 accounts for 90% or more of the total area of the bottom of the washing tub 100, preferably 95% or more of the total area of the bottom of the washing tub 100.

[0098] A drain port 100-32 and a drain valve 600 for keeping the drain port 100-32 normally closed are provided on the bottom of the tub outside the water stirring member 200. Specifically, the drain port 100-32 of the washing tub 100 is provided on the washing surface 100-31 at the bottom of the tub. The bottom disk-shaped stirring part is cancelled, which can prevent the water stirring member 200 from hindering the flow of washing water to the drain port 100-32 on the washing surface 100-31 and improve the drainage speed. The washing tub 100 realizes self-sealing through the drain valve 600, which can prevent water from accumulating between the washing tub 100 and the water collecting device during the operation of the washing equipment, prevent pollution, and is also an application of a water-saving technology for users. In addition, after the washing tub 100 is self-sealed through the drain valve 600, the washing tub 100 and the water stirring member 200 can rotate relative to each other to realize the function of double-power washing of clothes.

[0099] In this embodiment, a driving part 600-2 corresponding to the drain valve 600 is provided at the bottom of the water collecting device. The driving part 600-2 is used to drive the drain valve 600 to open. When the washing equipment is washing, the working end of the driving part 600-2 contracts downward and separates from the valve plug 600-1 of the drain valve 600 to avoid interfering with the rotation of the washing tub 100; when the washing equipment is draining, the washing tub 100 rotates to the position corresponding to the working end of the driving part 600-2 and the drain valve 600. The working end of the driving part 600-2 extends upward to push the valve plug 600-1 of the drain valve 600 to move upward and open the drain port 100-32.

[0100] Preferably, in this embodiment, the washing device further includes a locking member that can lock and position the washing tub 100. After the locking member locks the washing tub 100, it is more convenient for the driving member 600-2 to open the driving drain valve 600, ensuring the normal drainage.

[0101] In this embodiment, the specific structure of the locking member of the washing device may adopt the structure of the locking member in the existing double-power washing device.

[0102] In this embodiment, a drainage cavity 700 is provided at the bottom of the bottom of the washing tub 100. The drainage cavity 700 is arranged around the drain opening 100-32. The drainage cavity 700 extends downward from the outer surface of the bottom of the washing tub 100. The drain valve 600 is arranged in the drainage cavity 700. When the drain valve 600 moves upward, it can open the drainage cavity 700, so that the washing water flowing out from the drain opening 100-32 is discharged into the water collecting device. When the drain valve 600 moves downward, it can close the drainage cavity 700.

[0103] Specifically, the drainage cavity 700 extends downward from the bottom of the tub around the drain opening 100-32. The valve plug 600-1 of the drain valve 600 is arranged in the drainage cavity 700 and is used to open or close the lower end of the drainage cavity 700.

[0104] Preferably, in this embodiment, the drainage cavity 700 is formed on the bottom of the washing tub 100, so that the gap between the cavity wall of the drainage cavity 700 and the inner bottom of the tub can be reduced, further reducing dirt accumulation.

[0105] Further preferably, in some possible embodiments, a reduced-diameter portion is provided at the bottom of the drainage cavity 700. The inner diameter of the reduced-diameter portion gradually decreases along the direction from the drain opening 100-32 to the end of the drainage cavity 700 away from the drain opening 100-32. The valve plug 600-1 of the drain valve 600 moves from the end with a larger inner diameter of the reduced-diameter portion to the end with a smaller inner diameter to block the lower end of the drainage cavity 700.

[0106] In a specific embodiment of the present invention, the drain valve 600 further includes a support member. The support member is fixedly installed at the bottom of the washing tub 100 and extends to the lower end of the drainage cavity 700. The valve plug 600-1 of the drain valve 600 is slidably installed on the support member.

[0107] The support member includes a fixing portion and a sleeved portion. The fixing portion is fixedly installed at the bottom of the washing tub 100 and extends to directly below the drainage cavity 700 and is fixedly connected to the sleeved portion. The sleeved portion has a hollow slideway; the valve plug 600-1 of the drain valve 600 includes a sealing portion and a sliding rod. The sliding rod is slidably arranged in the hollow slideway of the sleeved portion to realize the blocking / conducting of the sealing portion to the inside of the reduced-diameter portion.

[0108] The described sealing portion further includes a gasket. The gasket is of an annular structure and is arranged on the outer peripheral wall of the sealing portion. The sealing portion abuts against the inner wall of the reduced-diameter portion through the gasket.

[0109] In order to maintain the self-sealing of the sealing portion and the reset sealing after drainage, the drain valve 600 includes an elastic member 600-3. One end of the elastic member 600-3 abuts against the support member, and the other end abuts against the valve plug 600-1. The elastic member 600-3 deforms when the sealing portion slides to a separated state from the reduced-diameter portion, realizing the elastic reset sealing of the sealing portion. The initial state of the elastic member 600-3 is in a compressed state to keep the sealing portion sealing the lower end of the drainage cavity 700.

[0110] As an implementation manner of this embodiment, the elastic member 600-3 is a compression spring. The compression spring is sleeved in the hollow slideway of the sleeved portion. One end of the compression spring abuts against the sleeved portion, and the other end abuts against the bottom of the valve plug 600-1.

[0111] Furthermore, a screw is installed at the end of the sliding rod. The upper end of the sleeved portion has a limiting step extending a certain distance inward toward the inside of the hollow slideway. The compression spring is sleeved on the central rod, with one end abutting against the screw and the other end abutting against the limiting step.

[0112] In some preferred embodiments of the present invention, the drainage cavity 700 includes a first reduced-diameter section 701 and a second reduced-diameter section 702 that extend downward from top to bottom and whose inner diameters gradually decrease in the direction from top to bottom. The lower end of the first reduced-diameter section 701 is connected to the upper end of the second reduced-diameter section 702 through a connecting section 703 extending inward from the lower end of the first reduced-diameter section 701 to the inner circumference. The valve plug 600-1 of the drain valve 600 moves from the end with a larger inner diameter of the second reduced-diameter portion to the end with a smaller inner diameter to block the drainage cavity 700.

[0113] Through the above arrangement, when the valve plug 600-1 of the drain valve 600 moves upward to open the lower end of the drainage cavity 700, the washing water in the washing tub 100 flows out from the space between the peripheral wall of the valve plug 600-1 and the inner wall of the first reduced-diameter section 701. The washing water flow can wash the inner wall of the drainage cavity 700 to prevent stain residue.

[0114] Preferably, in this embodiment, the upper end surface of the valve plug 600-1 of the drain valve 600 is set as a curved surface that extends downward in the direction from the center of the upper end surface of the valve plug 600-1 to the outer edge of the upper end surface of the valve plug 600-1. Thus, the washing water flowing out from the drain opening 100-32 can be better guided to the inner wall of the drainage cavity 700, improving the washing effect on the inner wall of the drainage cavity 700.

[0115] Such as Figure 1and Figure 2 As shown, in this embodiment, the peripheral wall of the valve plug 600-1 is conical and adapted to the inner peripheral wall of the second reduced-diameter section 702. Preferably, the taper of the inner wall of the first reduced-diameter section 701 is equal to the taper of the inner wall of the second reduced-diameter section 702.

[0116] In this embodiment, the inner wall of the first reduced-diameter section 701 is parallel to the inner wall of the second reduced-diameter section 702 and parallel to the side wall of the valve plug 600-1, which can improve the flushing effect on the inner wall of the drainage cavity 700 during the process of water flowing through the drainage cavity 700.

[0117] In this embodiment, the first reduced-diameter section 701 and the second reduced-diameter section 702 are coaxially arranged, and the connecting section 703 extends in the horizontal direction, or the connecting section 703 slopes downward in the direction from the outer periphery to the inner periphery.

[0118] In this embodiment, the drain port 100-32 can be of any shape, and the upper end of the drainage cavity 700 is formed on the bottom of the barrel and is arranged around the drain port 100-32.

[0119] Preferably, the drain port 100-32 is circular or oval, the shape of the upper end of the drainage cavity 700 is adapted to the shape of the drain port 100-32, and the drainage cavity 700 and the drain port 100-32 are coaxially arranged.

[0120] In this embodiment, a drainage part 100-35 is arranged at the drain port 100-32. The drainage part 100-35 covers the drain port 100-32, and a plurality of drainage holes 100-34 are arranged on the drainage part 100-35. The drainage holes 100-34 penetrate through the drainage part 100-35, and the drain port 100-32 drains water through the drainage holes 100-34 on the drainage part 100-35. Thus, the drainage part 100-35 can block the clothes in the washing barrel 100, prevent the clothes from entering the drain port 100-32 and hindering the closing of the drain valve 600, and ensure the sealing performance of the drain valve 600 for the drain port 100-32.

[0121] The area of the bottom of the barrel extending from the lower end of the water-stirring member 200 to the barrel wall can be used as the washing surface 100-31. The drain port 100-32 is arranged on the washing surface 100-31 of the bottom of the barrel, and at least part of the middle of the drainage part 100-35 protrudes into the washing barrel 100 and is higher than the washing surface 100-31 of the bottom of the barrel. By setting the middle of the drainage part 100-35 to protrude above the washing surface 100-31 of the washing barrel 100, on the one hand, the structure of the washing surface 100-31 can be enriched, and the washing effect on the clothes can be improved; on the other hand, the friction effect of the clothes on the drainage part 100-35 can be improved, thereby avoiding the blockage of the drainage holes 100-34.

[0122] In this embodiment, the drainage part 100-35 is formed on the bottom of the washing tub 100; alternatively, the drainage part 100-35 is detachably installed on the bottom of the washing tub 100.

[0123] Preferably, the drainage part 100-35 is detachably installed inside the bottom of the washing tub 100. The middle part of the drainage part 100-35 is arranged opposite to the drainage port 100-32, and the edge of the drainage part 100-35 is detachably connected to the bottom of the tub around the outer periphery of the drainage port 100-32. Thus, the operator can remove the drainage part 100-35 to clean the drainage holes 100-34 on the drainage part 100-35, avoiding the drainage holes 100-34 being blocked by dirt such as lint. At the same time, it is convenient to clean the inside of the drainage cavity 700 and to maintain and repair the drain valve 600.

[0124] In this embodiment, the drainage part 100-35 is installed inside the bottom of the washing tub 100 and can be detachably installed on the bottom of the tub by any installation means such as screws, threads, or snaps.

[0125] In this embodiment, the projection of the drainage part 100-35 on the inner surface of the tub bottom can cover the drainage port 100-32 on the tub bottom. The middle part of the drainage part 100-35 is arranged opposite to the drainage port 100-32, and the edge of the drainage part 100-35 is connected to the bottom of the tub around the outer periphery of the drainage port 100-32.

[0126] Specifically, in a specific embodiment of the present invention, a groove is provided on the bottom of the washing tub 100 around the drainage port 100-32. The shape of the groove is adapted to the shape of the drainage part 100-35, and the drainage part 100-35 is embedded in the groove. Preferably, the upper end surface of the drainage part 100-35 near its edge is substantially flush with the inner surface of the tub bottom.

[0127] In this embodiment, the upper end surface of the drainage part 100-35 near its edge is substantially flush with the inner surface of the tub bottom. Specifically, the upper end surface of the drainage part 100-35 near its edge can be higher than the inner surface of the tub bottom, or lower than the inner surface of the tub bottom, or can also be flush with the inner surface of the tub bottom.

[0128] By providing a groove on the tub bottom for installing the drainage part 100-35, on the one hand, it can improve the positioning effect of the drainage part 100-35 when installing the drainage part 100-35, and on the other hand, it can also ensure the installation stability of the drainage part 100-35, avoiding the situation that the drainage part 100-35 moves under the friction of the clothes.

[0129] Preferably, in this embodiment, the drainage part 100-35 is magnetically connected to the bottom of the washing tub 100.

[0130] Specifically, in a specific embodiment of the present invention, permanent magnets are provided on the bottom and / or the side wall of the groove. At least the edge of the drainage part 100-35 is made of a magnetic material such as iron. After the drainage part 100-35 is placed in the groove, the permanent magnet is attracted to the drainage part 100-35 to achieve the positioning of the drainage part 100-35.

[0131] By providing a magnetic connection between the drainage part 100-35 and the bottom of the washing tub 100, the portability of disassembly and assembly of the drainage part 100-35 can be improved, and the user experience can be enhanced.

[0132] Preferably, in this embodiment, the drainage port 100-32 is circular. The middle part of the drainage part 100-35 protrudes upward from the upper edge of the drainage port 100-32, and is an arc surface protruding upward in the direction from the edge of the drainage part 100-35 to the center of the drainage part 100-35.

[0133] In this embodiment, the drainage holes 100-34 are provided in the area of the drainage part 100-35 corresponding to the drainage port 100-32, and the drainage holes 100-34 extend in a direction perpendicular to the curved surface of the drainage part 100-35.

[0134] In this embodiment, the water stirring member 200 includes a support column 210 coaxially arranged with the washing tub 100, and water stirring ribs 220 protruding from the side wall of the support column 210; clothes can be washed in the space jointly formed by the bottom of the washing tub 100, the side wall of the support column 210 and the barrel wall of the washing tub 100.

[0135] The support column 210 is tapered axially below the maximum diameter of the water stirring member 200, and includes a connected first extension section 211 and a second extension section 212; the side wall of the first extension section 211 extends upward from the bottom of the washing tub 100 and is used to guide the clothes to move towards the maximum diameter of the water stirring member 200 during washing; the side wall of the second extension section 212 extends from the upper end of the first extension section 211 to the periphery and is inclined upward, extending to the height where the maximum diameter of the water stirring member 200 is located, and is used to guide the clothes below this position to move towards the periphery during washing.

[0136] Specifically, the water-stirring member 200 provided in this embodiment is applied to a washing device. During washing, the water-stirring member 200 rotates relative to the washing tub 100, and the laundry can move from the bottom of the washing tub 100 towards the central area, then move upward along the side wall of the first extension section 211 to the side wall of the second extension section 212, move outward under the guidance of the side wall of the second extension section 212, and then fall in the area near the wall of the washing tub 100, forming an annular path. On the one hand, it can strengthen the tumbling of the laundry in the tub, thereby improving the washing effect. On the other hand, it also reduces the probability of the laundry concentrating towards the center and getting entangled.

[0137] Preferably, in this embodiment, the water-stirring ribs 220 have a certain extension length along the axial direction of the washing tub 100, extending from the side wall of the first extension section 211 to the side wall of the second extension section 212.

[0138] In this embodiment, a plurality of water-stirring ribs 220 are arranged at intervals along the circumferential direction of the support column 210, and the interval angle between two adjacent water-stirring ribs 220 enables the laundry to be washed in the interval area between two adjacent water-stirring ribs 220, avoiding dead corners where dirt is likely to accumulate.

[0139] Preferably, the distance between the side of the water-stirring rib 220 away from the axis of the water-stirring member 200 and the axis of the water-stirring member 200 increases with the increase in height.

[0140] With the above structure, the water-stirring rib 220 can form the Coandă effect during washing, driving the water flow to flow along the outer periphery of the water-stirring rib 220, so that in the area near the axis of the washing tub 100, the water flow has a tendency to conform to the outer periphery of the water-stirring rib 220. As the height increases, the flow direction of the water flow is closer to upward rather than flowing outward. In this way, the lifting force of the water flow on the laundry in the area near the axis can be enhanced, driving the laundry to move upward to the side wall of the second extension section 212 and finally forming an annular path.

[0141] It can be understood that the laundry moving from the bottom of the tub towards the central area during washing can also be lifted along the outer periphery of the water-stirring rib 220 after contacting the water-stirring rib 220. After moving to the maximum radius Rmax of the water-stirring part, it moves outward under the action of inertia and centrifugal force, and finally falls along the wall of the washing tub 100 to the bottom of the tub.

[0142] In the preferred solution of this embodiment, rounded corner structures with smooth transitions are provided at the connection positions between the water-stirring ribs 220 and the support column 210, so that there are almost no cleaning dead corners on the water-stirring member 200 where dirt is likely to accumulate, ensuring the cleanliness and hygiene inside the washing tub 100 to the greatest extent.

[0143] Further preferably, there are rounded transitions between the outer peripheral edge of the water stirring rib 220 and both side surfaces of the water stirring rib 220, avoiding sharp corner structures that may scrape and damage clothes.

[0144] In this embodiment, through the design of the specific structure of the water stirring member 200, a guiding surface for guiding the movement of clothes is formed by the side wall of the support column 210. In cooperation with the specific structure of the water stirring rib 220, the effect of driving the clothes to move along an annular path below the maximum radius Rmax is better.

[0145] In an embodiment of the present invention, a control method for a washing device is also provided, and the washing device is equipped with the above-mentioned washing tub assembly. The control method of the washing device includes:

[0146] During the drainage process of the washing tub 100, the water stirring member 200 rotates to accelerate drainage.

[0147] Specifically, in this embodiment, by setting that during the drainage process of the washing tub 100, the water stirring member 200 rotates. On the one hand, it can make the washing water flow outward and smoothly enter the drainage port 100-32. On the other hand, during the rotation of the water stirring member 200, the clothes in the washing tub 100 move upward and outward along the side walls of the first extension section 211 and the second extension section 212, which can prevent the clothes from blocking the drainage port 100-32 and improve the drainage speed.

[0148] Preferably, in this embodiment, during the drainage process of the washing device, the drainage speed is detected. When the drainage speed becomes slow, the water stirring member 200 is driven to rotate to agitate the clothes. Or, when the washing device detects that the drainage times out, the water stirring member 200 is driven to rotate to agitate the clothes. Or, during the drainage process of the washing device, the water stirring member 200 is driven to rotate intermittently or continuously to prevent the clothes from blocking or covering the drainage port 100-32.

[0149] In this embodiment, the side surface of the water stirring member 200 is arranged such that as the height of the rotation axis increases, the distance between the side surface of the water stirring member 200 and the barrel wall of the washing tub 100 remains constant, or changes gradually or step by step.

[0150] As a specific implementation manner, the water stirring member 200 has a unique maximum radius in the height direction. Further, at least below this maximum radius, as the height increases, the distance between the side surface of the water stirring member 200 and the barrel wall of the washing tub 100 decreases as the height increases.

[0151] It should be noted that the unique maximum radius can refer to that the water stirring member 200 has a maximum radius at a specific height position, or that the water stirring member 200 has a maximum radius within a certain continuous height range.

[0152] In the first specific solution, the position with the largest radius of the water stirring member 200 is set at the top of the water stirring member 200, that is, the top surface of the water stirring member 200 is the cross-section with the largest radius thereof.

[0153] In the second specific solution, the position with the largest radius of the water stirring member 200 is close to the top of the water stirring member 200, but there is a certain distance from the top of the water stirring member 200. Specifically, the upper side surface of the water stirring member 200 at the position with the largest radius thereof is a curved surface protruding upward, and the highest point of the curved surface forms the top of the water stirring member 200.

[0154] In the third specific solution, the position with the largest radius of the water stirring member 200 is located at the middle part of the water stirring member 200 in the height direction.

[0155] In a detailed solution, the distance between the side surface of the water stirring member 200 and the barrel wall of the washing barrel 100 changes continuously in the height direction. Specifically, as the height increases, the diameter of the water stirring member 200 gradually increases from the bottom of the washing barrel 100 upward until the position with the largest radius is formed, and then the diameter of the water stirring member 200 gradually decreases until it reaches the top of the water stirring member 200.

[0156] In another detailed solution, the distance between the side surface of the water stirring member 200 and the barrel wall of the washing barrel 100 has a sudden change at at least one height position. Specifically, as the height increases, the diameter of the water stirring member 200 first gradually increases from the bottom of the washing barrel 100 upward, and when it reaches a certain height, the diameter suddenly increases to form the position with the largest radius. Then, the diameter of the water stirring member 200 remains constant within a certain height range, then suddenly decreases, and then continues to gradually decrease until the top of the water stirring member 200 is finally formed. In this solution, the distance from the position with the largest radius on the water stirring member 200 to the bottom of the washing barrel 100 refers to the distance from the lowest height in the height range where the diameter of the water stirring member 200 remains constant to the bottom of the washing barrel 100.

[0157] As another specific implementation manner, the water stirring member 200 has several radially maximum positions distributed at intervals in the axial direction of the washing barrel 100. Specifically, as the height increases, the diameter of the water stirring member 200 alternately increases and decreases, and each time it increases to the same diameter size and then decreases, thereby forming a plurality of radially maximum positions distributed at intervals.

[0158] In a further solution of this embodiment, the height at which the maximum radius of the water-stirring member 200 is located is set between the highest water level and the lowest water level of the washing device. In this way, when the washing device washes with different water levels, the rotation of the water-stirring member 200 can generate different water flow patterns to drive the movement of the clothes for washing. In particular, as a specific implementation, below the maximum radius of the water-stirring member 200, the clothes can move along an annular path for washing.

[0159] The above-mentioned annular path refers to moving from the bottom area of the washing tub 100 towards the center, being lifted by the water-stirring member 200 to a position close to the maximum radius of the water-stirring member 200, and then moving outwards and falling.

[0160] As a specific solution, the annular path along which the clothes move below the maximum radius of the water-stirring member 200 during washing includes: the clothes moving from the bottom of the washing tub 100 towards the central area, moving upwards along the side surface of the water-stirring member 200 in the central area to below the maximum radius and then moving outwards, and moving downwards in the area close to the wall of the washing tub 100.

[0161] In a further solution of this embodiment, the water-stirring member 200 includes a support column 210 coaxially arranged with the washing tub 100, and water-stirring ribs 220 protruding from the side wall of the support column 210. The protruding directions of the water-stirring ribs 220 and the side wall of the support column 210 coincide with the radial direction of the washing tub 100, or form an angle less than 90° with the radial direction of the washing tub 100. In this way, when the water-stirring ribs 220 rotate with the water-stirring member 200, the water-stirring ribs 220 have surfaces opposite to the rotation direction, which can achieve an effective stirring effect. Among them, the support column 210 is used for driving connection with the driving device of the washing device, so that the water-stirring member 200 can rotate under the drive of the driving device. The water-stirring ribs 220 rotate in the washing tub 100 with the water-stirring member 200, and play a role in stirring the clothes and water in the tub. The bottom of the washing tub 100, the side wall of the support column 210, and the wall of the washing tub 100 together form a space that can accommodate the clothes to be washed during washing, and the clothes can move along the above-mentioned annular path in the space.

[0162] For the water-stirring member 200 with the above structure, the side surface of the water-stirring member 200 includes both the side wall of the support column 210 and the surface of the water-stirring rib 220 farthest from the rotation axis, and the radius is the distance from the point on the water-stirring rib 220 farthest from the rotation axis to the rotation center.

[0163] When the washing tub assembly of this embodiment is applied to a washing device, in a specific implementation, when operating at a low water level below the maximum radius of the water-stirring member 200, the clothes can move along the above-mentioned annular path in the water.

[0164] Specifically, during the washing process, relative rotation occurs between the water-stirring member 200 and the washing tub 100. The laundry is within the space below the maximum radius of the water-stirring member 200 and moves along the bottom of the washing tub 100 towards the central region and converges. Then, it is lifted along the sidewall of the support column 210 or the outer periphery of the water-stirring ribs 220 to below the maximum radius and then moves towards the outer periphery. After that, it falls to the bottom of the tub in the area near the wall of the washing tub 100, forming a circular motion pattern.

[0165] When operating at a high water level above the maximum radius of the water-stirring member 200, in the area below the maximum radius of the water-stirring member 200, the laundry moves along the above-mentioned circular path in the water; while in the area above the maximum radius of the water-stirring member 200, the laundry moves approximately along the circumferential direction of the washing tub 100.

[0166] Specifically, during the washing process, relative rotation occurs between the water-stirring member 200 and the washing tub 100. In the area below the maximum radius of the water-stirring member 200, the movement path of the laundry is basically the same as that under the low water level. While in the area above the maximum radius of the water-stirring member 200, the laundry moves in a positive and negative alternating manner along the circumferential direction of the washing tub 100 as the water-stirring member 200 rotates in a positive and negative alternating manner.

[0167] In the above solution, when different washing water levels are adopted, the water-stirring member 200 can drive the laundry in the tub to move in different ways for washing, providing a more diverse choice of washing methods. Moreover, in the area below the maximum radius of the water-stirring member 200, since the laundry moves along a circular path, on the one hand, it can strengthen the tumbling of the laundry and enhance the washing effect; on the other hand, it avoids the problem that the existing pulsator washing machine easily drives the laundry to converge towards the center, resulting in entanglement of the laundry.

[0168] For the solution where the maximum radius of the water-stirring member 200 is located at or close to the top of the water-stirring member 200, as a specific implementation, the maximum radius of the water-stirring member 200 is formed by the upper end of the outer periphery of the water-stirring ribs 220.

[0169] Embodiment Two

[0170] As Figures 4 to 7 shown, in the embodiment of the present invention, a washing tub assembly of a washing device is introduced. The washing tub assembly includes a washing tub 100 and a water-stirring member 200 installed on the washing tub 100. When the washing device operates, the water-stirring member 200 rotates to drive the washing water in the washing tub 100 to rotate, realizing the washing of the laundry in the washing tub 100.

[0171] In this embodiment, the washing tub 100 is a non-porous tub.

[0172] In this embodiment, when the water stirring member 200 is installed, a gap is formed between the bottom of the water stirring member 200 and the bottom of the washing tub 100. During the washing process, dirt, lint and other impurities on the clothes are likely to accumulate in the gap between the bottom of the water stirring member 200 and the bottom of the tub. The area within this gap does not come into contact with the clothes. Therefore, the impurities in the gap are in a state of long-term accumulation and cannot be effectively cleaned simply by flushing, which is likely to breed bacteria and contaminate the clothes with the washing water.

[0173] In this embodiment, a water seal structure 500 is provided between the water stirring member 200 and the bottom of the washing tub 100. The water seal structure 500 is used to prevent the washing water from entering the gap between the water stirring member 200 and the bottom of the washing tub 100, thereby avoiding dirt, lint and other impurities dropped from the clothes from entering and accumulating in the gap between the water stirring member 200 and the bottom of the tub, improving the cleanliness of the space in the washing tub 100 that comes into contact with the washing water, and thus improving the washing effect on the clothes.

[0174] In this embodiment, the water stirring member 200 extends along the axial direction of the washing tub 100. The lower end of the water stirring member 200 is in plug-in and rotational fit with the inner surface of the bottom of the washing tub 100. A water seal structure 500 is provided between the circumferential surface of the lower end of the water stirring member 200 and the center of the bottom of the tub where the clothes can reach.

[0175] In this embodiment, by arranging the water stirring member 200 to extend along the axial direction of the washing tub 100 and providing a water seal structure 500 between the circumferential surface of the lower end of the water stirring member 200 and the center of the bottom of the tub where the clothes can reach, the bottom of the washing tub 100 outside the water seal structure 500 can come into contact with the clothes, and the friction between the clothes and the inner surface of the bottom of the tub can be used to prevent lint or other dirt from adhering to the inner surface of the bottom of the tub. At the same time, the water seal structure 500 can prevent the washing water from flushing the dirt to a position where the clothes cannot reach, effectively avoiding the problem that it is easy for dirt to accumulate between the water stirring member 200 and the bottom of the tub and is difficult to clean, and improving the user experience.

[0176] In this embodiment, the water stirring member 200 extends upward from the bottom of the washing tub 100, including a support column 210 and water stirring ribs 220 provided on the support column 210. The support column 210 extends along the axial direction of the washing tub 100. The water stirring ribs 220 are arranged on the circumferential side of the support column 210 and extend along the length direction of the support column 210. The lower end of the support column 210 is in rotational fit with the bottom of the washing tub 100.

[0177] An installation groove 100-1 is provided at the center of the bottom of the tub where the clothes can reach. The lower end of the support column 210 is plugged into the installation groove 100-1, and the water seal structure 500 is provided between the groove wall of the installation groove 100-1 and the circumferential surface of the lower end of the support column 210.

[0178] Specifically, in this embodiment, the stirring shaft 300 of the washing device extends coaxially into the washing tub 100, the lower end of the support column 210 of the water stirring member 200 is connected to the upper end of the stirring shaft 300, and the stirring shaft 300 is used to drive the water stirring member 200 to rotate.

[0179] The installation groove 100-1 is arranged on the inner surface of the bottom of the washing tub 100 and is coaxially arranged with the washing tub 100. The installation groove 100-1 corresponds to the lower end of the support column 210. At least a part of the lower end of the support column 210 is inserted into the installation groove 100-1, and a rotating pair is formed between the support column 210 and the groove wall of the installation groove 100-1. The water seal structure 500 is arranged between the groove wall of the installation groove 100-1 and the peripheral surface of the lower end of the support column 210.

[0180] In this embodiment, the support column 210 extends along the axial direction of the washing tub 100. The peripheral side of the support column 210 is oppositely arranged with the barrel wall of the washing tub 100. The clothes in the washing tub 100 are arranged around the support column 210. During the rotation of the water stirring member 200, the clothes can contact the peripheral side of the support column 210 and the bottom of the washing tub 100 outside the support column 210. The friction between the clothes and the support column 210, and between the clothes and the part of the bottom of the barrel outside the support column 210 is used to prevent lint or other dirt from adhering to the peripheral side of the support column 210 and the bottom of the barrel outside the support column 210, effectively avoiding the problem that it is easy to hide dirt between the water stirring member 200 and the bottom of the barrel and is difficult to clean, and improving the user experience.

[0181] The water seal structure 500 is annular and is arranged between the groove wall of the installation groove 100-1 and the peripheral surface of the lower end of the support column 210; the outer periphery of the water seal structure 500 is connected to the groove wall of the installation groove 100-1, and the inner periphery of the water seal structure 500 is elastically abutted against the peripheral surface of the lower end of the support column 210.

[0182] In this embodiment, a connecting portion 215 is arranged at the lower end of the support column 210. The support column 210 is rotationally matched with the groove wall of the installation groove 100-1 through the connecting portion 215, and the water seal structure 500 is arranged between the connecting portion 215 of the support column 210 and the inner wall of the installation groove 100-1.

[0183] An embedding groove is coaxially arranged at the notch of the installation groove 100-1. The diameter of the embedding groove is larger than the diameter of the installation groove 100-1. The water seal structure 500 is arranged in the embedding groove. Its lower end surface fits with the bottom of the embedding groove, and its upper end surface is basically flush with the inner surface of the bottom of the barrel. Preferably, the outer diameter of the water seal structure 500 is greater than or equal to the inner diameter of the embedding groove, and the inner edge of the water seal structure 500 is elastically abutted against the peripheral surface of the lower end of the support column 210.

[0184] In this embodiment, the statement that "the upper end surface of the water seal structure 500 is substantially flush with the inner surface of the bottom of the barrel" may specifically mean that the upper end surface of the water seal structure 500 is flush with the inner surface of the bottom of the barrel, or that the upper end surface of the water seal structure 500 protrudes from the inner surface of the bottom of the barrel, or that the upper end surface of the water seal structure 500 is slightly lower than the inner surface of the bottom of the barrel.

[0185] As Figures 5 to 7 shown, in this embodiment, the water seal structure 500 includes a rubber body and a spring ring 500-5. The rubber body is disposed in the installation groove and includes a rubber body main body adapted to the installation groove and a sealing lip 500-4 elastically abutted between the inner circumference of the rubber body main body and the lower peripheral surface of the support column 210. The spring ring 500-5 is sleeved on the rubber body. By sleeving the spring ring 500-5 on the rubber body, the sealing effect of the water seal structure 500 can be enhanced.

[0186] Preferably, in this embodiment, the spring ring 500-5 is hidden in the installation groove, which can prevent the spring ring 500-5 from contacting the washing water, thereby avoiding the rusting of the spring ring 500-5 and improving the stability of the action effect of the water seal structure 500.

[0187] As Figure 5 and Figure 6 shown, in some possible embodiments, the rubber body includes a rubber body main body and a sealing lip 500-4 disposed on the inner circumference of the rubber body main body. The rubber body main body includes a first extension portion 500-1 and a second extension portion 500-2, which are integrally formed. The first extension portion 500-1 extends upward along the groove wall of the installation groove from the bottom of the installation groove, and the second extension portion 500-2 extends from the upper end of the first extension portion 500-1 toward the axis of the water stirring member 200. The sealing lip 500-4 extends from the inner circumference of the second extension portion 500-2 toward the support column 210. The water seal structure 500 abuts against the groove wall of the installation groove through the first extension portion 500-1 and abuts against the lower peripheral side of the support column 210 through the sealing lip 500-4.

[0188] In this embodiment, the first extension portion 500-1 extends along the axial direction of the water stirring member 200. The outer diameter of the first extension portion 500-1 is greater than or equal to the groove wall of the installation groove, and the inner diameter of the first extension portion 500-1 is greater than the inner diameter of the installation groove 100-1. The extending direction of the second extension portion 500-2 is substantially perpendicular to the extending direction of the first extension portion 500-1. Specifically, the second extension portion 500-2 may extend horizontally along the radial direction of the water stirring member 200, or may be set to extend obliquely downward in the direction close to the axis of the water stirring member 200, or may be set to extend obliquely upward in the direction close to the axis of the water stirring member 200.

[0189] Preferably, the second extension portion 500-2 extends radially along the water stirring member 200.

[0190] Preferably, in this embodiment, the thickness of the first extension portion 500-1 is substantially the same as the thickness of the second extension portion 500-2. The thickness of the first extension portion 500-1 is the difference between the outer radius and the inner radius of the first extension portion 500-1, and the thickness of the second extension portion 500-2 is the distance between the lower end face and the upper end of the second extension portion 500-2.

[0191] In this embodiment, the sealing lip 500-4 is disposed on the inner circumference of the second extension portion 500-2 and extends from the inner circumference of the second extension portion 500-2 towards the axis of the water stirring member 200. The end of the sealing lip 500-4 is elastically abutted against the circumferential surface of the lower end of the support column 210. The sealing lip 500-4 has multiple turns arranged along the axial direction of the water stirring member 200.

[0192] As Figure 6 shown, in this embodiment, the sealing lip 500-4 located at the upper end of the inner circumference of the second extension portion 500-2 extends obliquely upward in the direction close to the axis of the water stirring member 200, the sealing lip 500-4 located at the middle of the inner circumference of the second extension portion 500-2 extends horizontally in the direction close to the axis of the water stirring member 200, and the sealing lip 500-4 located at the lower end of the inner circumference of the second extension portion 500-2 extends obliquely downward in the direction close to the axis of the water stirring member 200.

[0193] In this embodiment, the "sealing lip 500-4 located at the upper end of the inner circumference of the second extension portion 500-2", the "sealing lip 500-4 located at the middle of the inner circumference of the second extension portion 500-2", and the "sealing lip 500-4 located at the lower end of the inner circumference of the second extension portion 500-2" are each provided with at least one turn.

[0194] In this embodiment, two turns of the sealing lip 500-4 can be provided on the inner circumference of the second extension portion 500-2, and one turn is provided for each of the "sealing lip 500-4 located at the upper end of the inner circumference of the second extension portion 500-2", the "sealing lip 500-4 located at the middle of the inner circumference of the second extension portion 500-2", and the "sealing lip 500-4 located at the lower end of the inner circumference of the second extension portion 500-2".

[0195] Preferably, in this embodiment, the spring coil 500-5 is sleeved on the lowermost sealing lip 500-4.

[0196] Specifically, the innermost and lowermost sealing lip 500-4 on the inner circumference of the second extension 500-2 extends downwardly in a direction approaching the axis of the water stirring member 200, and the end of the sealing lip 500-4 bends and extends downwardly and away from the axis of the water stirring member 200. The spring ring 500-5 is sleeved on the end of the sealing lip 500-4.

[0197] Preferably, in this embodiment, the curvature of the end of the innermost and lowermost sealing lip 500-4 on the inner circumference of the second extension 500-2, which bends downwardly and away from the axis of the water stirring member 200, is the same as the curvature of the cross-section of the spring ring 500-5, and the end of the innermost and lowermost sealing lip 500-4 on the inner circumference of the second extension 500-2 covers the spring ring 500-5. Specifically, the end of the innermost and lowermost sealing lip 500-4 on the inner circumference of the second extension 500-2 covers at least the side of the spring ring 500-5 close to the axis of the water stirring member 200.

[0198] In this embodiment, the inner diameter of the spring ring 500-5 is less than or equal to the diameter of the lower end of the support column 210, so that the sealing lip 500-4 is hoop-fastened on the support column 210, and at the same time, the spring ring 500-5 can be prevented from contacting the washing water.

[0199] Preferably, in this embodiment, the water seal structure 500 further includes a skeleton 500-3, which is located inside the rubber body main body, and its extending direction is basically the same as the extending direction of the rubber body main body. The "basically the same" can mean that the extending direction of the skeleton 500-3 is the same as the extending direction of the rubber body main body, or there can be a slight deviation between the extending direction of the skeleton 500-3 and the extending direction of the rubber body main body.

[0200] In this embodiment, by using the setting method of cooperating the skeleton 500-3 with the rubber body, and embedding the skeleton 500-3 inside the rubber body, the shape and position of the first extension 500-1 and the second extension 500-2 of the rubber body can be shaped and supported, making the rubber body stronger.

[0201] Specifically, the skeleton 500-3 is made of a hard material, and the skeleton 500-3 is injection-molded inside the rubber body and is arranged in the middle of the first extension 500-1 and the second extension 500-2.

[0202] Preferably, the skeleton 500-3 is arranged inside the rubber body main body, and both ends of the skeleton 500-3 extend from the corners of the first extension 500-1 and the second extension 500-2 into the first extension 500-1 and the second extension 500-2 respectively.

[0203] Such as Figure 7As shown, in some other possible embodiments, the rubber body includes a rubber body main body and a sealing lip 500-4 provided on the inner circumference of the rubber body main body.

[0204] In this embodiment, the shape of the rubber body main body is substantially the same as the shape of the embedding groove. The rubber body main body includes a first rubber section 500-8 and a second rubber section 500-9 whose outer diameters gradually decrease from top to bottom, and the first rubber section 500-8 and the second rubber section 500-9 are integrally formed.

[0205] There is an elastic abutment between the outer circumference of the first rubber section 500-8 and the groove wall of the embedding groove, and / or they are bonded to each other. The spring ring 500-5 is sleeved on the outer circumference of the second rubber section 500-9. Thus, it can be avoided that the washing water comes into contact with the spring ring 500-5.

[0206] Preferably, in this embodiment, the lower end of the rubber body main body abuts against the bottom of the embedding groove, and the upper end of the rubber body main body is substantially flush with the inner surface of the barrel bottom. Preferably, the upper end surface of the rubber body main body is flush with the inner surface of the barrel bottom of the washing barrel 100.

[0207] Preferably, in this embodiment, an annular groove is provided on the outer circumference of the second rubber section 500-9, and the spring ring 500-5 is arranged in the annular groove. Thus, it can be avoided that the spring ring 500-5 disengages from the second rubber section 500-9.

[0208] and / or, the lower end of the outer circumference of the second rubber section 500-9 protrudes outward in a direction away from the water stirring member 200, which is used to limit the axial position of the spring ring 500-5 and avoid the spring ring 500-5 disengaging from the second rubber section 500-9.

[0209] In this embodiment, the sealing lip 500-4 includes a first sealing lip 500-6 and a second sealing lip 500-7. The first sealing lip 500-6 is provided on the inner circumference of the first rubber section 500-8, and the second sealing lip 500-7 is provided on the inner circumference of the second rubber section 500-9. The water seal structure 500 is elastically abutted against the outer circumference of the lower end of the support column 210 through the first sealing lip 500-6 and the second sealing lip 500-7.

[0210] Specifically, the first sealing lip 500-6 is provided on the inner circumference of the first rubber section 500-8 and extends obliquely upward along the direction close to the axis of the water stirring member 200 from the inner circumference of the first rubber section 500-8; the first sealing lip 500-6 has at least two turns and is arranged at intervals along the axis of the first rubber section 500-8.

[0211] Preferably, in this embodiment, the inner diameter of the first rubber section 500-8 is greater than that of the second rubber section 500-9. A step is formed between the inner walls of the first rubber section 500-8 and the second rubber section 500-9. The lowermost first sealing lip 500-6 is arranged at the junction of the inner circumferences of the first rubber section 500-8 and the second rubber section 500-9, and the top of the uppermost first sealing lip 500-6 is flush with the upper end face of the rubber body main body.

[0212] Specifically, in this embodiment, the first sealing lip 500-6 is provided with two circles and arranged along the axial direction of the first rubber section 500-8. The top of the upper first sealing lip 500-6 is flush with the upper end face of the rubber body main body. The lower end face of this first sealing lip 500-6 extends obliquely upward from the inner circumference of the first rubber section 500-8 along the direction close to the axis of the water stirring member 200. The thickness of the upper first sealing lip 500-6 gradually increases along the direction away from the axis of the water stirring member 200.

[0213] The lower first sealing lip 500-6 extends obliquely upward from the junction of the inner circumferences of the first rubber section 500-8 and the second rubber section 500-9 along the direction close to the axis of the water stirring member 200. The lower end of the root of the lower first sealing lip 500-6 is connected to the upper end of the inner circumference of the second rubber section 500-9, and the upper end of the root of the lower first sealing lip 500-6 is connected to a position near the lower end of the inner circumference of the first rubber section 500-8. That is, the lower first sealing lip 500-6 extends upward and in the direction close to the axis of the water stirring member 200 from the corner of the inner wall of the first rubber section 500-8 and the inner wall of the second rubber section 500-9.

[0214] Preferably, in this embodiment, a third sealing lip 500-10 is further included. The third sealing lip 500-10 is arranged between the two first sealing lips 500-6. Specifically, a third sealing lip 500-10 extending downward is arranged at the root of the upper first sealing lip 500-6, and the end of the third sealing lip 500-10 abuts against the middle part of the lower first sealing lip 500-6.

[0215] In this embodiment, the third sealing lip 500-10 extends vertically downward as a whole. The side of the third sealing lip 500-10 close to the axis of the water stirring member 200 extends downward and bends away from the circumference line of the water stirring member 200 from the middle part of the upper first sealing lip 500-6. The end of the side of the third sealing lip 500-10 close to the axis of the water stirring member 200 extends vertically downward. The side of the third sealing lip 500-10 away from the axis of the water stirring member 200 extends downward and obliquely in the direction close to the axis of the water stirring member 200 from the root of the upper first sealing lip 500-6.

[0216] The end of the third sealing lip 500-10 corresponds to the middle of the first sealing lip 500-6 located below. Specifically, the end of the third sealing lip 500-10 corresponds to the position above the first sealing lip 500-6 located below and close to the root of the first sealing lip 500-6. There may be an abutment between the third sealing lip 500-10 and the first sealing lip 500-6 located below, or there may be a certain distance therebetween.

[0217] In this embodiment, the arrangement of the first sealing lip 500-6 can enhance the sealing effect of the first sealing lip 500-6. Specifically, the third sealing lip 500-10 can support the first sealing lip 500-6 located below, and assist the first sealing lip 500-6 located below to rebound towards the direction close to the axis of the water stirring member 200, so as to improve the sealing effect.

[0218] In this embodiment, the axial cross-section of the first sealing lip 500-6 located below is a long rectangular shape.

[0219] In this embodiment, the second sealing lip 500-7 is arranged on the inner circumference of the second rubber section 500-9. The second sealing lip 500-7 is serrated, and the axial cross-section of the second sealing lip 500-7 is a triangular shape protruding towards the direction close to the axis of the water stirring member 200.

[0220] Preferably, at least two weeks of the second sealing lip 500-7 are arranged continuously along the axial direction of the second rubber section 500-9.

[0221] Preferably, in this embodiment, the lower end surface of the second rubber section 500-9 is set as an inclined surface inclined downward along the direction close to the axis of the water stirring member 200, and the lower end of the second rubber section 500-9 abuts against the bottom of the embedding groove through the inclined surface inclined downward along the direction close to the axis of the water stirring member 200.

[0222] In this embodiment, the middle of the lower end surface of the lowermost second sealing lip 500-7 abuts against the edge of the bottom of the embedding groove close to the axis of the water stirring member 200.

[0223] Further preferably, the upper end surface of the first rubber section 500-8 is set as a horizontal plane extending along the radial direction of the water stirring member 200.

[0224] Embodiment III

[0225] As Figures 8 to 11As shown, in an embodiment of the present invention, a washing device is introduced. The washing device includes a washing tub 100 and a water stirring member 200 installed on the washing tub 100. When the washing device works, the rotation of the water stirring member 200 drives the washing water in the washing tub 100 to rotate, so as to realize the washing of the clothes in the washing tub 100.

[0226] In this embodiment, the washing tub 100 is a tub without holes.

[0227] In this embodiment, when the water stirring member 200 is installed, a gap is formed between the bottom of the water stirring member 200 and the bottom of the washing tub 100. During the washing process, impurities such as dirt and lint on the clothes are likely to accumulate in the gap between the bottom of the water stirring member 200 and the bottom of the tub. The area within this gap does not come into contact with the clothes. Therefore, the impurities in the gap are in a state of long-term accumulation, and they cannot be effectively cleaned simply by flushing, which is likely to breed bacteria and cause pollution to the clothes along with the washing water.

[0228] In this embodiment, a water seal structure 500 is provided between the water stirring member 200 and the bottom of the washing tub 100. The water seal structure 500 is used to prevent the washing water from entering the gap between the water stirring member 200 and the bottom of the washing tub 100, thereby avoiding the entry and accumulation of impurities such as dirt and lint dropped from the clothes into the gap between the water stirring member 200 and the bottom of the tub, improving the cleanliness of the space in the washing tub 100 that comes into contact with the washing water, and thus improving the washing effect on the clothes.

[0229] The water seal structure 500 is at least provided at one end where the gap between the water stirring member 200 and the bottom of the tub communicates with the washing space inside the washing tub 100.

[0230] In this embodiment, the water stirring member 200 extends upward from the bottom of the washing tub 100 and includes a support column 210 and water stirring ribs 220 provided on the support column 210. The support column 210 extends along the axial direction of the washing tub 100, the water stirring ribs extend along the length direction of the support column 210, and the lower end of the support column 210 is rotatably engaged with the bottom of the washing tub 100. The water seal structure 500 is provided at one end where the gap between the lower end of the support column 210 and the bottom of the tub communicates with the washing space of the washing tub 100. In this embodiment, by providing a rotational fit between the support column and the bottom of the tub, the bottom disk-shaped stirring part is cancelled, which can reduce the covered area of the gap between the water stirring member and the bottom of the tub and reduce the retention of dirt. At the same time, the model of the water seal structure can be reduced, and the damping of the rotational movement of the water stirring member can be reduced.

[0231] In this embodiment, the stirring shaft 300 of the washing device extends coaxially into the washing tub 100, the lower end of the support column 210 of the water stirring member 200 is connected to the upper end of the stirring shaft 300, and the stirring shaft 300 is used to drive the water stirring member 200 to rotate.

[0232] In some possible embodiments, the support column 210 is disposed above the bottom of the washing tub 100, a gap is formed between the lower end face of the support column 210 and the bottom of the washing tub 100, and the water seal structure 500 is disposed at least between the outer edge of the lower end face of the support column 210 and the bottom.

[0233] Specifically, in this embodiment, the water seal structure 500 is annular, the lower end of the water seal structure 500 is fixedly connected to the bottom of the washing tub 100, and the upper end of the water seal structure 500 is elastically abutted against the lower end face of the support column 210. Preferably, the outer edge of the water seal structure 500 is coplanar with the peripheral wall of the bottom wall of the support column 210.

[0234] The lower end of the water seal structure 500 can be clamped and / or bonded to the bottom. The upper end of the water seal structure 500 is elastically abutted against the lower end face of the support column 210 through a serrated surface, and the serrated surface includes a plurality of serrations arranged continuously along the radial direction of the water stirring member 200.

[0235] Preferably, in this embodiment, the surface of the support column 210 in contact with the water seal structure 500 is set as a metal surface. A metal insert is provided at the lower end of the support column 210, and the support column 210 is abutted against the water seal structure 500 through the metal insert, which can make the lower end surface of the support column 210 smooth, thereby further improving the sealing effect between the support column 210 and the water seal structure 500 and reducing the damping force therebetween.

[0236] In this embodiment, the water seal structure 500 is made of rubber material and can be provided with multiple circles arranged along the radial direction of the water stirring member 200.

[0237] As Figures 9 to 11 shown, in some other possible embodiments, an installation groove 100-1 is provided on the inner side of the bottom of the washing tub 100, the installation groove 100-1 corresponds to the lower end of the support column 210, and the water seal structure 500 is disposed between the bottom of the installation groove 100-1 and the lower end face of the support column 210; and / or at least a part of the lower end of the support column 210 is inserted into the installation groove 100-1, and the water seal structure 500 is disposed between the groove wall of the installation groove 100-1 and the peripheral surface of the lower end of the support column 210.

[0238] As Figure 10As shown, in this embodiment, the water seal structure 500 includes a first water seal structure 501, which is annular and is arranged between the bottom of the installation groove 100-1 and the lower end face of the support column 210; the lower end of the first water seal structure 501 is fixed on the bottom of the installation groove 100-1, and there is an elastic abutment between the upper end of the first water seal structure 501 and the lower end face of the water stirring member 200; preferably, the outer periphery of the first water seal structure 501 fits against the inner wall of the installation groove 100-1.

[0239] Specifically, the upper end face of the first water seal structure 501 is arranged in a serrated shape, and the upper end face of the first water seal structure 501 includes a plurality of serrations arranged continuously along the radial direction of the water stirring structure.

[0240] In this embodiment, the lower end of the support column can be inserted between the inner wall of the installation groove and the installation groove for rotational cooperation, or the lower end of the support column may not be inserted into the installation groove.

[0241] As Figure 9 As shown, in this embodiment, the water seal structure 500 includes a second water seal structure 502, which is annular and is arranged between the inner wall of the installation groove 100-1 and the lower peripheral surface of the support column 210; the outer periphery of the second water seal structure 502 is connected to the inner wall of the installation groove 100-1, and there is an elastic abutment between the inner periphery of the second water seal structure 502 and the lower peripheral surface of the support column 210.

[0242] Specifically, at least a part of the lower end of the support column 210 is inserted into the installation groove 100-1, and gaps are respectively formed between the lower peripheral surface of the support column 210 and the inner wall of the installation groove 100-1 and between the lower end face of the support column 210 and the bottom of the installation groove 100-1, and the second water seal structure 502 is arranged between the mouth of the installation groove 100-1 and the lower peripheral surface of the support column 210.

[0243] Specifically, in this embodiment, at least a part of the lower end of the support column 210 is inserted into the installation groove 100-1, and the second water seal structure 502 is arranged around the lower end of the support column 210. In this embodiment, the lower end of the support column 210 is provided with a connecting portion 215, the support column 210 is in rotational cooperation with the inner wall of the installation groove 100-1 through the connecting portion 215, and the second water seal structure 502 is arranged between the connecting portion 215 of the support column 210 and the inner wall of the installation groove 100-1.

[0244] In this embodiment, the second water seal structure 502 is arranged in a ring shape and can be arranged only at the notch of the installation groove 100-1 or in the entire installation groove 100-1. The outer edge of the second water seal structure 502 is connected to the groove wall of the installation groove 100-1, and the inner edge of the second water seal structure 502 is elastically abutted against the peripheral surface of the lower end of the support column 210 through a serrated surface, and the serrated surface includes a plurality of serrations arranged continuously along the axial direction of the water stirring member 200.

[0245] In some possible embodiments, the second water seal structure 502 extends along the axial direction of the installation groove 100-1, its lower end surface fits with the bottom of the installation groove 100-1, and its upper end surface is basically flush with the inner side of the barrel bottom. In this embodiment, a sealant is provided between the outer edge of the second water seal structure 502 and the groove wall of the installation groove 100-1, and / or a sealant is provided between the lower end surface of the second water seal structure 502 and the bottom of the installation groove 100-1.

[0246] Preferably, in some possible embodiments, the lower end of the second water seal structure 502 extends in the radial direction of the water stirring member 200 towards the axis of the water stirring member 200, and at least part of the inner circumference of the second water seal structure 502 extends between the lower end surface of the support column 210 and the bottom of the installation groove 100-1 to further enhance the sealing effect on the gap between the support column 210 and the barrel bottom.

[0247] As Figure 9 shown, in some other possible embodiments, a fitting groove is coaxially arranged at the notch of the installation groove 100-1, the diameter of the fitting groove is larger than the diameter of the installation groove 100-1, the second water seal structure 502 is arranged in the fitting groove, its lower end surface fits with the bottom of the fitting groove, and its upper end surface is basically flush with the inner side of the barrel bottom. Preferably, the outer diameter of the second water seal structure 502 is greater than or equal to the inner diameter of the fitting groove, and there is an elastic abutment between the inner edge of the second water seal structure 502 and the lower peripheral surface of the support column 210.

[0248] In this embodiment, the inner side of the barrel bottom specifically refers to the inner surface of the bottom of the washing barrel.

[0249] In this embodiment, the statement that "the upper end surface of the second water seal structure 502 is basically flush with the inner side of the barrel bottom" can specifically be that the upper end surface of the second water seal structure 502 is flush with the inner surface of the barrel bottom, or that the upper end surface of the second water seal structure 502 protrudes from the inner surface of the barrel bottom, or that the upper end surface of the second water seal structure 502 is slightly lower than the inner surface of the barrel bottom.

[0250] In this embodiment, the first water seal structure 501 and the second water seal structure 502 can be provided separately. As Figure 11 shown, the first water seal structure 501 and the second water seal structure 502 can also be provided simultaneously.

[0251] In this embodiment, the inner surface of the bottom of the washing tub 100 extends horizontally, or an extension wall 100-2 is provided on the inner surface of the bottom of the washing tub 100, which is arranged around the support column 210 and protrudes and extends into the washing tub 100. The inner circumference of the extension wall 100-2 is coplanar with the wall of the installation groove 100-1.

[0252] Preferably, in this embodiment, for the washing tub with the first water seal structure 501 provided separately, the inner circumference of the extension wall 100-2 is coplanar with the wall of the installation groove 100-1. For the washing tub with the second water seal structure 502, the extension wall 100-2 is arranged around the embedding groove and extends along the axial direction of the washing tub 100, and the inner circumference of the extension wall 100-2 is coplanar with the wall of the embedding groove.

[0253] Preferably, in this embodiment, the lower end of the second water seal structure 502 is in contact with the bottom of the embedding groove, the upper end of the second water seal structure 502 is substantially flush with the upper end surface of the extension wall 100-2, the outer edge of the second water seal structure 502 is adhesively bonded to the wall of the embedding groove, and / or the lower end of the second water seal structure 502 is adhesively bonded to the bottom of the embedding groove.

[0254] In this embodiment, the lower end of the water stirring rib 220 extends to a position flush with the inner surface of the bottom of the washing tub 100, or there is a gap between the lower end of the water stirring rib 220 and the inner surface of the bottom of the washing tub 100.

[0255] Specifically, for the inner surface of the bottom of the tub with the extension wall 100-2 provided, the lower end of the water stirring rib extends at least to a position flush with the upper end surface of the extension wall.

[0256] Preferably, in this embodiment, there is a gap between the lower end of the water stirring rib 220 and the bottom of the tub, so that clothes can enter the space between the lower end of the water stirring rib 220 and the bottom of the tub, and the clothes can be in contact with the circumferential surface of the lower end of the support column 210.

[0257] In this embodiment, the lower end of the water stirring member 200 is sleeved on the upper end of the stirring shaft 300. The lower end of the water stirring member 200 is circumferentially limited with the upper end of the stirring shaft 300 through a spline structure, and the water stirring member 200 is axially limited with the upper end of the stirring shaft 300 through a screw 210-7 or a clamping structure.

[0258] Specifically, a spline groove 210-6 is coaxially arranged at the bottom of the water stirring member 200. The spline groove 210-6 is at least partially sleeved on the end of the stirring shaft 300 and is key-connected to the stirring shaft 300. The spline groove 210-6 is formed on the support column 210 of the water stirring member 200. Alternatively, the support column 210 of the water stirring member 200 includes a support column main body and a spline shaft arranged at the lower end of the support column main body, and the spline groove 210-6 is arranged on the spline shaft.

[0259] In this embodiment, the top of the spline shaft is embedded in the bottom of the support column main body of the water stirring member. The spline shaft has a radial protrusion extending along the radial direction of the water stirring member, and the radial protrusion fits with the bottom of the support column main body. The radial protrusion is inserted into the installation groove, and the radial protrusion constitutes the connection part of the support column.

[0260] Axial positioning between the water stirring member 200 and the stirring shaft 300 is achieved through a clamping structure. Specifically, an insert 401 is arranged at the end of the stirring shaft 300, an installation cavity 210-2 is arranged at the bottom of the water stirring member 200, a locking component is arranged in the installation cavity 210-2, and an unlocking component cooperating with the locking component is arranged at the lower end of the support column 210. When installing the water stirring member 200, the insert 401 is inserted into the installation cavity 210-2, and axial positioning of the insert 401 is achieved through the locking component. When disassembling the water stirring member 200, the unlocking component is operated to release the locking of the insert 401 by the locking component, so that the water stirring member 200 can be detached from the upper end of the stirring shaft 300.

[0261] Axial positioning between the water stirring member 200 and the stirring shaft 300 is achieved through a screw 210-7. Specifically, an assembly hole 210-3 axially penetrating the water stirring member 200 is arranged on the water stirring member 200, and the screw 210-7 is inserted from the upper end of the assembly hole 210-3 and tightened on the stirring shaft 300 to axially position the water stirring member 200.

[0262] In this embodiment, the setting of the water seal structure 500 can, on the one hand, prevent washing water from entering the gap between the water stirring member 200 and the bottom of the barrel, and on the other hand, can also prevent washing water from entering the connection between the water stirring member 200 and the stirring shaft 300, keeping the inside of the water stirring member 200 dry.

[0263] In this embodiment, a sealing groove 210-4 is arranged at the top of the water stirring member 200, and a sealing cover 210-5 for closing the upper end of the water stirring member 200 is arranged at the sealing groove 210-4 to prevent washing water from entering the inside of the water stirring member 200.

[0264] Specifically, the sealing cover 210-5 includes a flat plate portion and a plugging portion. The flat plate portion covers the notch of the sealing groove 210-4 and is embedded in the top of the water stirring member 200. The plugging portion is plugged into the sealing groove 210-4 and has an interference fit with the sealing groove 210-4.

[0265] The top of the flat plate portion is in the same plane as the top of the water stirring member 200.

[0266] The sealing groove 210-4 includes a first section and a second section with an increasing diameter from top to bottom. The lower end of the plugging portion is provided with a limiting convex that protrudes from the outer wall of the lower end of the plugging portion in a direction away from the axis of the water stirring member 200, and the limiting convex is engaged at the junction between the first section and the second section.

[0267] Preferably, the inner walls of the first section and the second section of the sealing groove 210-4 are transitionally connected by a conical surface that slopes downward and away from the axis of the water stirring member 200. The shape of the limiting convex is adapted to the shape between the first section and the second section of the sealing groove 210-4. The outer peripheral surface of the limiting convex is in contact with the inner wall of the second section, and the top of the limiting convex is in contact with the conical surface between the first section and the second section of the limiting groove. Preferably, the bottom of the limiting convex is provided with a conical surface with a gradually decreasing outer diameter from top to bottom, and the outer diameter of the bottom of the limiting convex is smaller than the inner diameter at the notch of the sealing groove 210-4.

[0268] In this embodiment, a sealing convex rib extending along the circumferential direction of the plugging portion is provided in the middle of the plugging portion, and the plugging portion elastically abuts against the inner wall of the first section of the sealing groove 210-4 through the sealing convex rib. Preferably, the sealing convex rib extends along the circumferential direction of the plugging portion and is provided with multiple circles arranged at intervals along the axial direction of the plugging portion.

[0269] Preferably, in this embodiment, the sealing convex rib slopes upward along the extending direction away from the axis of the water stirring member 200 to improve the smoothness of inserting the sealing cover 210-5.

[0270] Preferably, in this embodiment, the water stirring member 200 has a maximum radius along the radial direction of the washing tub 100 at a certain distance from the bottom surface of the washing tub 100, and a guiding surface extending outward is formed at this position to guide the clothes below this position to move along the guiding surface to the outer periphery during washing.

[0271] Embodiment 4

[0272] As Figure 12 and Figure 13 shown, this embodiment provides a washing tub assembly of a washing device and a washing device having the washing tub assembly. In this embodiment, below the position where the radius of the water stirring member 200 is the largest, the distance between the side wall of the support column 210 and the barrel wall of the washing tub 100 decreases as the height increases.

[0273] It should be noted that in the embodiments of the present invention, the maximum radius of the water-stirring member 200 refers to the position where the radius dimension of the horizontal cross-section of the water-stirring member 200 is the largest. The radius dimension of the horizontal cross-section of the water-stirring member 200 means that the water-stirring member 200 takes a cross-section along the horizontal direction, and the distance from the farthest point from the rotation center on the obtained horizontal cross-section to the rotation center.

[0274] Specifically, if the horizontal cross-section of the water-stirring member 200 is circular, the radius is the radius R1 of the circular cross-section. If the horizontal cross-section of the water-stirring member 200 is non-circular, the radius is the distance R2 from the farthest point from the rotation center on the cross-section to the rotation center.

[0275] In this embodiment, the stirring ribs 220 are provided on the side wall of the support column 210. The dimension of the stirring ribs 220 along the radial direction of the washing tub 100 can remain constant as the height increases, or can also gradually or stepwise change. By the distance between the side wall of the support column 210 and the barrel wall of the washing tub 100 decreasing as the height increases, the distance between the side surface of the water-stirring member 200 and the barrel wall of the washing tub 100 shows a trend of decreasing as the height increases.

[0276] In the above structure, the radius of any horizontal cross-section of the water-stirring member 200 specifically refers to the distance from the farthest point of the stirring ribs 220 from the axis on the horizontal cross-section to the central axis.

[0277] In another specific embodiment, the stirring ribs extend spirally along the side wall of the support column. At this time, the horizontal cross-section of the water-stirring member 200 may not form a regular geometric figure, but the radius of the horizontal cross-section of the water-stirring member 200 is still the distance from the farthest point of the stirring ribs from the axis on the cross-section to the central axis.

[0278] In this embodiment, the clothes can also be washed in the space jointly formed by the bottom of the washing tub 100, the side wall of the support column 210 and the barrel wall of the washing tub 100.

[0279] In the specific solution of this embodiment, the support column 210 includes a first extension section 211 and a second extension section 212 which are arranged below and connected to the position where the radius of the water-stirring member 200 is the largest. Among them, the side wall of the first extension section 211 extends obliquely upward from the bottom of the washing tub 100 and gradually approaches the barrel wall of the washing tub 100. The side wall of the second extension section 212 extends outward and obliquely upward from the upper end of the first extension section 211 to the height where the radius of the water-stirring member 200 is the largest, so that the clothes can be washed below the side wall of the second extension section 212 and move outward along the side wall of the second extension section 212.

[0280] More specifically, the side wall of the first extension section 211 extends along a straight line and is inclined outward at a small angle relative to the vertical direction. The side wall of the second extension section 212 forms a larger angle with the vertical direction relative to the side wall of the first extension section 211, and as the height increases, the angle between the side wall of the second extension section 212 and the vertical direction gradually increases, forming a curved surface that bends towards the axis.

[0281] In this embodiment, a water stirring plate 230 is also provided at the upper end of the support column 210. Specifically, the upper end of the second extension section 212 is connected to the lower surface of the water stirring plate 230. The support column 210 of the water stirring member 200 has the above structure, effectively reducing the problem of cleaning dead corners where clothes cannot reach between the upper end of the support column 210 and the lower surface of the water stirring plate 230.

[0282] In a detailed solution, the upper end of the side wall of the second extension section 212 coincides with the outer periphery of the water stirring plate 230, so that the lower surface of the water stirring plate 230 is completely covered by the upper end surface of the support column 210.

[0283] In the preferred solution of this embodiment, as Figure 13 shown, the upper surface of the water stirring plate 230 is a curved surface with the middle area higher than the outer peripheral area, and raised stirring portions 231 are provided on the curved surface. When the water level in the washing tub 100 is higher than the top of the water stirring plate 230, the stirring portions 231 can stir the washing water above the water stirring plate 230 as the water stirring member 200 rotates, and can also rub the clothes located above the water stirring plate 230, thereby enhancing the washing effect.

[0284] Furthermore, in this embodiment, the side wall of the second extension section 212 forms a first guiding surface 213 for guiding the clothes below it to move outward along the first guiding surface 213 during washing. The side wall of the first extension section 211 forms a second guiding surface 214 for guiding the clothes to rise along the second guiding surface 214 to the first guiding surface 213 during washing.

[0285] Specifically, when the washing equipment using the washing tub assembly described in this embodiment is washing, the water stirring member 200 rotates relative to the washing tub 100, causing the clothes to move from the bottom of the washing tub 100 towards the central area, then move upward along the first guiding surface 213 to the second guiding surface 214, and move outward along the second guiding surface 214, and then fall in the area near the wall of the washing tub 100, forming a circular path. On the one hand, it can strengthen the tumbling of the clothes in the tub to improve the washing effect, and on the other hand, it also reduces the probability of the clothes concentrating towards the center and getting entangled.

[0286] As a specific implementation manner of this embodiment, at the connection position of the first extension section 211 and the second extension section 212, the angles between the side walls of both and the vertical direction are the same. That is, the first guiding surface 213 and the second guiding surface 214 have the same inclination angle at the connection, achieving a smooth transition connection.

[0287] As another specific implementation manner, the inclination angle of the side wall of the second extension section 212 relative to the vertical direction at the lower end position is slightly higher than the inclination angle of the side wall of the first extension section 211 relative to the vertical direction, so that an angle less than but close to 180° is formed at the connection of the first guiding surface 213 and the second guiding surface 214. In this way, when the clothing moves upward along the second guiding surface 214 to the first guiding surface 213, it can play a certain buffering role on the clothing, strengthening the tendency of the clothing to move outward in a tumbling manner.

[0288] In a further solution of this embodiment, the water stirring ribs 220 have a certain extension length along the axial direction of the washing tub 100, extending from the side wall of the first extension section 211 to the side wall of the second extension section 212. A plurality of water stirring ribs 220 are arranged at intervals along the circumferential direction of the support column 210, and the interval angle between two adjacent water stirring ribs 220 enables the clothing to be washed in the interval area between two adjacent water stirring ribs 220, and at the same time the clothing can contact the side wall of the first extension section 211, so as to move upward along the side wall of the first extension section 211, that is, the second guiding surface 214.

[0289] In this way, the areas of the side walls of the first extension section 211 and the second extension section 212 located between two adjacent water stirring ribs 220 can contact the clothing, and no dead corners that are prone to dirt accumulation will be generated.

[0290] Furthermore, in this embodiment, the dimension of the water stirring rib 220 along the radial direction of the washing tub 100 first increases and then decreases from the lower end to the upper end.

[0291] As a specific implementation manner, the cross-sectional shape of the water stirring rib 220 along the direction parallel to the radial direction of the washing tub 100 is approximately spindle-shaped, and the outer peripheral edge of the water stirring rib 220 extends from bottom to top, and the included angle between the extending direction and the vertical direction gradually decreases, so that the outer peripheral edge of the water stirring member 200 forms a curve bending towards the barrel wall of the washing tub 100. The upper end of the outer peripheral edge of the water stirring rib 220 coincides with the outer circumference of the water stirring disk 230.

[0292] The water stirring rib 220 has the above structure, and can form the Coanda effect during washing, driving the water flow to flow along the outer peripheral edge of the water stirring rib 220, so that in the area close to the axis of the washing tub 100, the water flow has a tendency to flow along the outer peripheral edge of the water stirring rib 220. As the height increases, the flow direction of the water flow is closer to upward rather than flowing outward. In this way, the lifting force of the water flow on the clothes in the area close to the axis can be enhanced, driving the clothes to move upward to the first guiding surface 213 and finally forming an annular path.

[0293] It can be understood that the clothes moving from the bottom of the tub to the central area can also be lifted along the outer peripheral edge of the water stirring rib 220 after contacting the water stirring rib 220. After moving to the maximum radius of the water stirring member 200, they move outward under the action of inertia and centrifugal force and finally fall along the wall of the washing tub 100 to the bottom of the tub.

[0294] In the preferred solution of this embodiment, the water stirring member 200 is installed in the washing tub 100, and there is a certain interval between the lower end of the water stirring rib 220 and the bottom of the washing tub 100 to avoid cleaning dead corners between the water stirring rib 220 and the bottom of the tub. Specifically, the lower end of the support column 210 has a connecting portion 215 rotatably inserted into the installation groove 100-1 on the bottom of the tub, and the lower end of the water stirring rib 220 is at least flush with the upper end of the connecting portion 215, preferably higher than the upper end of the connecting portion 215. The stirring shaft for driving the rotation of the water stirring member 200 is fixed by inserting from the lower end into the connecting portion 215.

[0295] More preferably, rounded corner structures with smooth transitions are provided at the connection positions between the water stirring rib 220 and the support column 210, so that there are almost no cleaning dead corners on the water stirring member 200 where dirt is likely to accumulate, ensuring the cleaning and sanitation inside the washing tub 100 to the greatest extent.

[0296] Further preferably, there are rounded corner transitions between the outer peripheral edge of the water stirring rib 220 and the two side surfaces of the water stirring rib 220 to avoid sharp corner structures that may scratch and damage the clothes.

[0297] It can be understood that the connecting portion at the lower end of the support column can also be completely arranged inside the washing tub, and the stirring shaft passes through the installation groove 100-1 on the bottom of the washing tub and inserts into the connecting portion. By setting a certain interval between the lower end surface of the connecting portion and the bottom of the washing tub, or setting the difference between the outer diameter and the inner diameter of the connecting portion small enough, so that the outer surface (including the outer side wall and the possible lower end surface) of the connecting portion and the area of the bottom of the washing tub located outside the installation groove 100-1 can contact the clothes, the purpose of preventing cleaning dead corners can also be achieved.

[0298] As a specific embodiment, the thickness of the water-stirring rib 220 in the circumferential direction gradually decreases radially outward. Along the axial direction, the thickness of the middle region of the water-stirring rib 220 is greater than that of the upper and lower ends.

[0299] In this embodiment, the change in the distance between the side surface of the water-stirring member 200 and the barrel wall of the washing tub 100 is formed by the change in the cross-sectional dimension of the support column 210 itself. Similarly, a structure can be formed in which the distance from the bottom of the washing tub 100 at the maximum radius is a certain distance, ensuring that the clothes can be washed below the maximum radius of the water-stirring member 200. At the same time, the side walls of the support column 210 form a first guiding surface 213 and a second guiding surface 214 for guiding the movement of the clothes during washing, which can effectively drive the clothes to move along a circular path and flip below the maximum radius of the water-stirring member 200, resulting in a better washing effect and preventing the clothes from tangling.

[0300] Embodiment Five

[0301] As Figure 14 shown, in this embodiment, the water-stirring member 200 includes an assembling part 210-1 and a water-stirring part 240 extending upward from the assembling part 210-1. The assembling part 210-1 is arranged as a solid structure, and at least part of the water-stirring part 240 is arranged as a hollow structure. For example, the water-stirring part 240 is provided with a cavity extending axially from the top to the assembling part 210-1.

[0302] Specifically, in this embodiment, the assembling part 210-1 is a solid cylinder, which can increase the connection strength of the water-stirring member 200. The water-stirring part 240 has an integrally formed hollow structure, and the water-stirring part 240 is formed on the top of the assembling part 210-1. The assembling part 210-1 can also block the lower end of the hollow structure of the water-stirring part 240.

[0303] As a specific embodiment, the water-stirring member 200 includes a support column 210 and water-stirring ribs 220 provided on the side wall of the support column 210 and protruding in a direction away from the axis of the support column 210 along the radial direction or close to the radial direction of the support column. The water-stirring ribs 220 extend axially along the support column in the length direction, and the water-stirring ribs 220 extend in a direction away from the outer circumference of the support column in the width direction, and can be arranged radially or deviate from the radial direction.

[0304] In this embodiment, the support column 210 includes an assembly part 210-1 and a hollow column 210-8 coaxially connected to the upper part of the assembly part 210-1. The assembly part 210-1 is a solid column, preferably a cylinder, and the hollow column 210-8 extends upward from the upper end surface of the assembly part 210-1. The outer diameter at the connection between the hollow column 210-8 and the assembly part 210-1 may be greater than the diameter of the assembly part 210-1, or may be less than or equal to the diameter of the assembly part 210-1; the outer peripheral wall of the hollow column 210-8 and the outer peripheral wall of the assembly part 210-1 extend upward with a smooth transition.

[0305] The water-stirring part 240 has a horizontal cross-section with the largest radius at a certain height from the upper end of the assembly part 210-1. A water-stirring disc 230 is provided at the top of the support column 210. The position with the largest radius Rmax of the water-stirring part 240 is formed by the outer periphery of the water-stirring disc 230, and the top surface of the water-stirring disc 230 is a curved surface protruding upward. A cavity 210-9 similar to the external shape of the support column 210 is formed inside the hollow column 210-8.

[0306] Preferably, the water-stirring ribs 220 are also provided with a hollow structure.

[0307] More preferably, the internal space of the water-stirring ribs 220 communicates with the cavity 210-9 inside the hollow column 210-8.

[0308] More preferably, at least a part of the lower end of the water-stirring ribs 220 extends to the outer peripheral wall of the assembly part 210-1 and is integrally formed with the assembly part 210-1, thereby further strengthening the connection strength between the assembly part 210-1 and the water-stirring part 240.

[0309] In this embodiment, the water-stirring part 240 is connected to a stirring shaft 300 that can rotate through the bottom of the washing tub 100 through the assembly part 210-1, so that the water-stirring member 200 can rotate relative to the washing tub 100.

[0310] Specifically, the circumferential positioning between the assembly part 210-1 and the stirring shaft 300 is carried out through splines and they rotate together, and the axial positioning is carried out through screws 210-7.

[0311] In this embodiment, a spline groove 210-6 is provided on the assembly part 210-1 and extends coaxially upward from the lower end surface of the assembly part 210-1. The spline groove 210-6 at least partially sleeves on the upper end part of the stirring shaft 300 and is key-connected to the stirring shaft 300. The spline groove 210-6 is formed on the assembly part 210-1 of the water-stirring member 200.

[0312] In this embodiment, an opening communicating with the cavity 210-9 inside the hollow column is provided at the top of the water stirring member 200. The screw 210-7 enters the cavity 210-9 through the opening and is connected downward to the stirring shaft 300 key-connected in the assembling part 210-1, fixedly connecting the water stirring member 200 and the stirring shaft 300 axially. To prevent water from entering the cavity 210-9, a sealing component is installed at the opening.

[0313] Preferably, a sealing groove 210-4 is provided at the top of the water stirring member 200, and the sealing groove 210-4 is concavely formed coaxially downward from the top surface of the water stirring disc 230. An opening communicating with the cavity 210-9 is provided at the bottom of the sealing groove 210-4.

[0314] Specifically, a through hole, preferably a threaded hole, is provided at the upper end of the assembling part 210-1. The rod part of the screw 210-7 passes through the top of the assembling part 210-1 and is tightened in the threaded hole, and the head of the screw 210-7 abuts against the top of the assembling part 210-1. The operator disassembles and assembles the screw 210-7 through the opening at the bottom of the sealing groove 210-4 and the cavity 210-9 of the hollow column 210-8. The screw is preferably a countersunk head screw.

[0315] A sealing cover 210-5 for closing the upper end of the water stirring member 200 is provided at the sealing groove 210-4 to prevent washing water from entering the inside of the water stirring member 200.

[0316] Specifically, the sealing cover 210-5 includes a flat plate part and a plugging part. The flat plate part covers the notch of the sealing groove 210-4 and is embedded in the top of the water stirring member 200, and the plugging part is plugged in the sealing groove 210-4 and has an interference fit with the sealing groove 210-4.

[0317] The top of the flat plate part is in the same plane as the top of the water stirring member 200.

[0318] The sealing groove 210-4 includes a first section and a second section with an increasing diameter from top to bottom. A limiting convex is provided at the lower end of the plugging part, protruding from the outer wall of the lower end of the plugging part in a direction away from the axis of the water stirring member 200, and the limiting convex is clamped at the junction between the first section and the second section.

[0319] Preferably, between the inner walls of the first and second sections of the sealing groove 210-4, there is a tapered surface that transitions and connects in a direction sloping away from the axis of the water-stirring member 200 from top to bottom. The shape of the limiting protrusion is adapted to the shape between the first and second sections of the sealing groove 210-4. The outer peripheral surface of the limiting protrusion fits against the inner wall of the second section, and the top of the limiting protrusion fits against the tapered surface between the first and second sections of the limiting groove. Preferably, the bottom of the limiting protrusion is provided with a tapered surface whose outer diameter gradually decreases from top to bottom, and the outer diameter at the bottom of the limiting protrusion is smaller than the inner diameter at the notch of the sealing groove 210-4.

[0320] In this embodiment, a sealing convex rib extending circumferentially along the insertion part is provided in the middle of the insertion part. The insertion part elastically abuts against the inner wall of the first section of the sealing groove 210-4 through the sealing convex rib. Preferably, the sealing convex rib extends circumferentially along the insertion part and is provided with multiple circles arranged at intervals along the axial direction of the insertion part.

[0321] Preferably, in this embodiment, the sealing convex rib slopes upward in the extending direction away from the axis of the water-stirring member 200 to improve the smoothness of inserting the sealing cover 210-5.

[0322] The above are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention. Although the present invention has been disclosed above with preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art of this patent, without departing from the scope of the technical solution of the present invention, can make some changes or modifications to equivalent embodiments by using the technical content prompted above. The implementation schemes in the above embodiments can be further combined or replaced. However, as long as it does not depart from the content of the technical solution of the present invention, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention still fall within the scope of the present invention's solution.

Claims

1. A washing tub assembly, comprising a washing tub (100); and a water stirring member (200) extending upward from the bottom of the washing tub (100) and rotatably provided in the washing tub (100); characterized in that, The middle or top of the water stirring member (200) has a location with the maximum radius. The location with the maximum radius of the water stirring member (200) faces the bottom of the tub, and the space between them is used for washing clothes; a drain opening (100 - 32) is provided on the bottom of the tub on the outer periphery of the water stirring member (200), and a drain valve (600) for keeping the drain opening (100 - 32) normally closed is provided.

2. The washing tub assembly according to claim 1, wherein A drainage part (100 - 35) is provided at the drain opening (100 - 32). The drainage part (100 - 35) covers the drain opening (100 - 32), and a plurality of drain holes (100 - 34) penetrating through the drainage part (100 - 35) for the washing water to pass through are provided on the drainage part (100 - 35).

3. The washing tub assembly according to claim 2, wherein The area of the bottom of the tub extending from the lower end of the water stirring member (200) outward to the tub wall can be used as a washing surface (100 - 31). The drain opening (100 - 32) is provided on the washing surface (100 - 31) of the bottom of the tub. At least a part of the middle of the drainage part (100 - 35) protrudes into the washing tub (100) and is higher than the washing surface (100 - 31) of the bottom of the tub.

4. The washing tub assembly according to claim 2, wherein The drainage part (100 - 35) is formed on the bottom of the washing tub (100); or the drainage part (100 - 35) is detachably installed on the bottom of the washing tub (100).

5. The washing tub assembly according to claim 4, wherein The drainage part (100 - 35) is detachably installed on the inner side of the bottom of the washing tub (100). The middle of the drainage part (100 - 35) is arranged opposite to the drain opening (100 - 32), and the drainage part (100 - 35) is detachably connected to the bottom of the tub outside the periphery of the drain opening (100 - 32) near its edge.

6. The washing tub assembly according to claim 5, wherein A groove is provided on the bottom of the washing tub (100) around the drain opening (100 - 32). The shape of the groove is adapted to the shape of the drainage part (100 - 35), and the drainage part (100 - 35) is embedded in the groove; Preferably, the upper end surface of the drainage part (100 - 35) near its edge is substantially flush with the inner surface of the bottom of the tub.

7. The washing tub assembly according to any one of claims 4 to 6, wherein The drainage part (100 - 35) and the bottom of the washing tub (100) are magnetically connected.

8. The washing tub assembly according to any one of claims 1 to 6, wherein A drainage cavity (700) is provided at the bottom of the bottom of the washing tub (100). The drainage cavity (700) extends downward from the bottom of the tub around the drain opening (100 - 32). The valve plug (600 - 1) of the drain valve (600) is arranged in the drainage cavity (700) for opening or closing the lower end of the drainage cavity (700).

9. The washing tub assembly according to claim 8, wherein The drainage cavity (700) is formed on the bottom of the tub.

10. The washing tub assembly according to claim 9, wherein The drainage cavity (700) comprises a first diameter-reducing section (701) and a second diameter-reducing section (702) extending from top to bottom and having an inner diameter that gradually decreases in the direction from top to bottom, and the lower end of the first diameter-reducing section (701) and the upper end of the second diameter-reducing section (702) are connected via a connecting section (703) extending from the lower end of the first diameter-reducing section (701) to the inner circumference; The valve plug (600-1) moves from the end with a larger inner diameter of the second reduced diameter portion to the end with a smaller inner diameter to seal the drainage cavity (700).

11. The washing tub assembly according to claim 10, wherein, The connecting section (703) extends in a horizontal direction, or the connecting section (703) is inclined downward from the outer periphery to the inner periphery.

12. The washing bucket assembly according to any one of claims 1 to 6, characterized in that: The water stirring member (200) comprises a support column (210) coaxially arranged with the washing tub (100), and a water stirring rib (220) protruding from the side wall of the support column (210); clothes can be washed in a space formed by the bottom of the washing tub (100), the side wall of the support column (210) and the wall of the washing tub (100).

13. The washing tub assembly according to claim 12, characterized in that, The support column (210) is arranged with a variable diameter along the axial direction below the maximum radius of the water stirring member (200), and comprises a first extension section (211) and a second extension section (212) connected to each other; The side wall of the first extension section (211) extends upward from the bottom of the washing tub (100) and is used to guide the clothes to move toward the maximum radius of the water stirring member (200) during washing; The side wall of the second extension section (212) extends from the upper end of the first extension section (211) toward the periphery and tilts upward to the height of the maximum radius of the water stirring member (200), and is used to guide the clothes below this point to move toward the periphery during washing.

14. The washing bucket assembly according to claim 13, characterized in that: The water stirring rib (220) has a certain extension length along the axial direction of the washing tub (100), extending from the side wall of the first extension section (211) to the side wall of the second extension section (212); A plurality of water stirring ribs (220) are arranged at intervals along the circumference of the support column (210), and the interval angle between two adjacent water stirring ribs (220) enables the clothes to be washed in the interval area between the two adjacent water stirring ribs (220); Preferably, the distance between the side of the water-stirring rib (220) away from the axis of the water-stirring member (200) and the axis of the water-stirring member (200) increases with increasing height.

15. A washing device, characterized in that, comprising a washing bucket assembly as claimed in any one of claims 1 to 14; and, The driving device is respectively connected to the washing tub (100) and the water stirring member (200) in a transmission manner, and is used to drive the washing tub (100) and the water stirring member (200) to rotate simultaneously or alternately during washing, thereby driving at least part of the clothes to move in an area below the maximum radius of the water stirring member (200) for washing.

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