Washing barrel assembly and washing equipment

Abstract

The invention provides a washing bucket assembly and washing equipment, and the washing bucket assembly comprises a washing bucket which independently contains washing water during washing; the water stirring component extends along the axial direction of the washing bucket, and the lower end of the water stirring component is rotatably mounted on the bucket bottom; a water outlet is formed in the area, extending outwards to the barrel wall from the lower end of the water stirring component, of the barrel bottom, a water drainage valve is arranged at the water outlet, a valve cover covering the water outlet is arranged on the inner surface of the barrel bottom, and hollowed-out holes allowing washing water to pass through are formed in the wall of the valve cover. The valve cover is arranged on the inner surface of the barrel bottom, so that clothes, thread scraps and other sundries in the washing barrel can be prevented from entering the drainage port, the working stability of the drainage valve is improved, and meanwhile, the thread scraps and other sundries in washing water are filtered; in addition, the water outlet is formed in the area, extending outwards to the barrel wall, of the lower end of the water stirring component, friction of clothes can be utilized, impurities such as thread scraps can be prevented from blocking hollowed-out holes in the valve cover, and the water drainage efficiency is guaranteed.

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] A pulsator washing machine usually includes a washing inner tub and a pulsator. The pulsator is arranged at the bottom of the washing inner tub. By making the two rotate relatively, the washing water and clothes in the inner tub are driven to move, so as to realize the washing of the clothes to be washed in the inner tub. The existing pulsator is usually a flat circular pulsator. When washing, dirt, lint and other impurities on the clothes are likely to accumulate in the gap between the bottom surface of the pulsator and the inner tub, and it is impossible to effectively clean them simply by flushing. Moreover, dirt and lint are prone to breed bacteria in a humid environment for a long time, bringing a bad user experience to users. If you want to clean thoroughly, you need to remove the pulsator and brush the dirt in the gap, which is a relatively complex operation and further deteriorates the user experience. In addition, when the above-mentioned pulsator washing machine is washing, all the clothes are located above the pulsator and cover the surface of the pulsator in a large area. Using the friction between the pulsator and the clothes to drive the clothes to move in the washing water will increase the entanglement and wear of the clothes. At the same time, the frictional force between the clothes and the pulsator will also cause an increase in the energy consumption required for the driving motor to drive the pulsator to rotate.

[0003] To solve the above problems, the manufacturer has developed a water stirring member, which cancels the bottom disk-shaped stirring part, and makes the surface of the water stirring member below its maximum radius and the inner surface of the tub bottom on the outer periphery of the water stirring member can contact the clothes washed in the tub, and uses the friction between the clothes and the two to prevent lint or other dirt from adhering to the surfaces of the two.

[0004] However, when this water stirring member is used in a non-porous tub washing machine, the drain port on the washing tub will be directly exposed on the washing surface of the tub bottom. When draining water, the drain valve opens the drain port, and the clothes in the inner tub are likely to enter the drain port, resulting in the drain valve being unable to be completely closed, thus causing a water leakage problem. At the same time, lint and other sundries will enter the drain port along with the washing water, easily causing blockage problems of the drain port, the drain pipe and the floor drain in the user's home.

[0005] Therefore, designing a washing tub assembly that can prevent clothes and lint and other sundries in the tub from entering the drain port during drainage has become a technical problem that needs to be solved urgently by those skilled in the art.

[0006] In view of this, the present invention is specifically proposed. Summary of the Invention

[0007] The present invention provides a washing tub assembly. By providing a valve cover on the inner surface of the tub bottom, the washing water is discharged through the hollow holes on the valve cover, which can prevent clothes, lint and other sundries in the washing tub from entering the drain outlet, and solve the problems 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, and the lint and other sundries entering the drain outlet cause blockages in the drain outlet, the drain pipeline and the floor drain in the user's home.

[0008] To solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0009] A washing tub assembly, comprising:

[0010] A washing tub for independently containing washing water during laundry;

[0011] A water stirring member extending along the axial direction of the washing tub, and its lower end is rotatably installed on the tub bottom;

[0012] A drain outlet is provided in the area where the tub bottom extends from the lower end of the water stirring member to the tub wall. A drain valve is provided at the drain outlet, and a valve cover covering the drain outlet is provided on the inner surface of the tub bottom. Hollow holes for the washing water to pass through are provided on the wall of the valve cover.

[0013] Further, the valve cover includes:

[0014] A top wall provided above the drain outlet;

[0015] A surrounding wall extending downward from the edge of the top wall, and its lower end abuts against the inner surface of the tub bottom around the outer periphery of the drain outlet; the hollow holes are provided on the top wall and / or the surrounding wall.

[0016] Further, the projection of the valve cover on the tub bottom covers the drain outlet;

[0017] Preferably, the projection of the top wall of the valve cover on the tub bottom covers the drain outlet, and the surrounding wall extends vertically downward from the edge of the top wall;

[0018] An arc-shaped chamfer is provided at the connection between the top wall and the side wall of the valve cover.

[0019] Further, the valve cover is strip-shaped, and its length direction is perpendicular to the perpendicular connection line between the rotation center of the water stirring member and the center of the drain outlet.

[0020] Further, the top wall of the valve cover is provided as an arc-shaped bent downward;

[0021] Preferably, the top wall of the valve cover bends downward along the direction away from the perpendicular connection line between the rotation center of the water stirring member and the center of the drain outlet.

[0022] Further, the end of the top wall of the valve cover away from the perpendicular connection line between the rotation center of the water stirring member and the center of the drain outlet is substantially in contact with the inner surface of the tub bottom;

[0023] Preferably, the upper end surfaces at both ends of the valve cover are smoothly transitioned with the inner surface of the bottom of the barrel through a rounded corner that bends downward along the direction away from the vertical connection line between the rotation center of the water stirring member and the center of the drain opening or an inclined surface that slopes downward.

[0024] Furthermore, the width of the valve cover gradually decreases along the direction away from the vertical connection line between the rotation center of the water stirring member and the center of the drain opening.

[0025] Furthermore, the valve cover is symmetric about the vertical connection line between the rotation center of the water stirring member and the center of the drain opening.

[0026] Furthermore, the hollow holes include:

[0027] The first hollow holes, which are provided in multiple numbers and are arranged on the top wall of the valve cover;

[0028] The second hollow holes, which are provided in multiple numbers and are arranged on the surrounding wall of the valve cover.

[0029] Furthermore, the second hollow holes are arranged at the lower end of the surrounding wall and are in a U shape with the opening facing downward. There are multiple ones arranged along the length direction of the surrounding wall. The lower end of the surrounding wall abuts against the inner surface of the bottom of the barrel to form grid holes.

[0030] Furthermore, there are intervals between one end of the valve cover close to the water stirring member and the water stirring member, and between the other end away from the water stirring member and the barrel wall respectively;

[0031] The second hollow holes are centrally arranged on one side of the surrounding wall of the valve cover close to the water stirring member and on the other side away from the water stirring member.

[0032] Furthermore, the drain valve includes:

[0033] A valve plug, which is arranged at the drain opening. The sealing part of the valve plug is arranged in the cavity of the valve cover and moves downward from top to bottom to block the drain opening;

[0034] An elastic member, which is arranged between the valve plug and the bottom of the barrel and is used to drive the valve plug to move downward.

[0035] Furthermore, the inner diameter of the upper end of the drain opening gradually decreases along the direction from top to bottom. The sealing part of the valve plug is embedded in the upper end of the drain opening from top to bottom;

[0036] Preferably, the upper end surface of the valve plug is substantially flush with the inner surface of the bottom of the barrel on the outer periphery of the drain opening.

[0037] Furthermore, the water stirring member has a maximum radius along the radial direction of the washing barrel at a certain distance from the inner surface of the bottom of the barrel. A first guiding surface extending from the area close to the axis to the outer periphery is formed below this position, which is used to guide the clothes below this position to move along the first guiding surface to the outer periphery during washing;

[0038] A second guiding surface extending upward is formed below the first guiding surface for guiding clothes to move along the second guiding surface towards the first guiding surface during washing.

[0039] The present invention also provides a washing device, including the above-mentioned washing tub assembly.

[0040] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0041] 1. By arranging a valve cover on the inner surface of the bottom of the tub, the washing water is discharged through the hollow holes on the valve cover, which can prevent clothes and debris such as lint in the washing tub from entering the drain opening. Thus, it can prevent the clothes in the washing tub from obstructing the drain valve from closing the drain opening, improving the working stability of the drain valve. At the same time, it has a filtering effect on debris such as lint in the washing water, avoiding the blockage of the drain opening, drain pipe and floor drain in the user's home by lint and other debris. In addition, by arranging the drain opening in the area where the lower end of the water stirring member extends outward to the tub wall, the valve cover can be in contact with the clothes in the tub, and by using the friction of the clothes, it can avoid the blockage of the hollow holes on the valve cover by impurities such as lint and ensure the drainage efficiency.

[0042] 2. By setting the top wall of the valve cover to bend downward along the direction away from the vertical connection line between the rotation center of the water stirring member and the center of the drain opening, during the laundry process, clothes can smoothly pass through the position where the valve cover is located, avoiding the valve cover from retaining clothes. At the same time, it can improve the installation stability and service life of the valve cover.

[0043] 3. By setting the second hollow holes at the lower end of the surrounding wall and arranging the second hollow holes to be concentrated on one side of the surrounding wall of the valve cover close to the water stirring member and the other side far from the water stirring member, on the one hand, during the laundry process, the washing water can flow between the cavity of the valve cover and the washing tub, improving the flushing effect on the inside of the valve cover. On the other hand, it can ensure the drainage effect, enabling all the washing water in the washing tub to be discharged from the second hollow holes.

[0044] At the same time, the structure of the present invention is simple, the effect is remarkable, and it is suitable for popularization and use.

[0045] The following further describes in detail the specific implementation manners of the present invention with reference to the drawings. Description of the Drawings

[0046] The drawings, as a part of the present invention, are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation to the present invention. Obviously, the drawings described below are only some embodiments. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings. In the drawings:

[0047] Figure 1 Schematic diagram of the installation structure of the valve cover in the first embodiment of the present invention;

[0048] Figure 2 Schematic diagram of the structure of the drainage valve cooperating with the drainage port in the first embodiment of the present invention;

[0049] Figure 3 Schematic diagram of the overall structure of the valve cover in the first embodiment of the present invention;

[0050] Figure 4 Cross-sectional view of the washing tub assembly in the second embodiment of the present invention;

[0051] Figure 5 In the second embodiment of the present invention Figure 4 Enlarged view at C;

[0052] Figure 6 Cross-sectional view of a water seal structure in the second embodiment of the present invention;

[0053] Figure 7 Assembly drawing of another water seal structure in the second embodiment of the present invention;

[0054] Figure 8 Cross-sectional view of the washing tub assembly in the third embodiment of the present invention;

[0055] Figure 9 In the third embodiment of the present invention Figure 8 Enlarged view at B;

[0056] Figure 10 Schematic diagram of the first water seal structure separately provided in the third embodiment of the present invention;

[0057] Figure 11 Schematic diagram of the first and second water seal structures provided simultaneously in the third embodiment of the present invention;

[0058] Figure 12 Cross-sectional view of the washing tub assembly in the fourth embodiment of the present invention;

[0059] Figure 13 Schematic diagram of the water stirring member in the fourth embodiment of the present invention;

[0060] Figure 14 Schematic diagram of the water stirring member in the fifth embodiment of the present invention.

[0061] Description of the main elements in the figure:

[0062] 100, washing tub; 100-1, installation groove; 100-2, extension wall; 100-31, washing surface; 100-32, drain outlet; 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 segment; 212, second extension segment; 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 segment; 500-9, second rubber segment; 500-10, third sealing lip; 600, drain valve; 600-1, valve plug; 800, valve cover; 801, top wall; 802, surrounding wall; 803, hollow hole; 8031, first hollow hole; 8032, second hollow hole; 804, connecting groove.

[0063] It should be noted that these drawings and textual descriptions are not intended to limit the scope of the concept of the present invention in any way, but to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed implementation manners

[0064] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below 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.

[0065] In the description of the present invention, it should be noted that the orientation or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc. are based on the orientation or positional relationships shown in the 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 orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation to the present invention.

[0066] 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.

[0067] 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.

[0068] 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.

[0069] 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.

[0070] 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.

[0071] During washing, the driving device drives the stirring shaft 300 and the dewatering shaft to rotate simultaneously or alternately, thereby driving the water stirring member 200 and the washing tub 100 to rotate simultaneously or alternately, and using the relative rotation between the water stirring member 200 and the washing tub 100 to agitate the clothes and the washing water in the tub, so as to achieve a cleaning effect on the clothes. During the dewatering process, the driving device drives the stirring shaft 300 and the dewatering shaft to rotate synchronously at a high speed, thereby driving the water stirring member 200 and the washing tub 100 to rotate synchronously at a high speed, and using centrifugal force to spin-dry the clothes in the tub.

[0072] However, lint and dirt shed during the clothes washing process mix 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 carried out by the impact force of the water flow during the washing process. Over time, dirt and grime will accumulate in the gap between the water stirring member 200 and the washing tub 100, which is prone to breeding bacteria and causing secondary pollution of the clothes.

[0073] Embodiment 1

[0074] As Figures 1 to 3 shown, in the embodiment of the present invention, a washing tub assembly is introduced. The washing tub assembly includes a washing tub 100 and a water stirring member 200 installed on the bottom of the washing tub 100, and the washing tub assembly is applied to a washing device.

[0075] In this embodiment, the washing tub 100 is a tub without holes and independently holds washing water during laundry.

[0076] In this embodiment, a washing device is provided to solve the problem that there are dead corners where dirt and grime accumulate between the water stirring member 200 and the washing tub 100 and it is difficult to clean.

[0077] In this embodiment, the water stirring member 200 extends upward from the bottom of the washing tub 100 and is rotatably arranged in the washing tub 100. The middle or top of the water stirring member 200 has a maximum radius, and the position where the maximum radius of the water stirring member 200 faces the bottom of the tub and the space between them are used for washing clothes.

[0078] Specifically, the washing device described in this embodiment includes a washing tub 100, a water stirring member 200, and a driving device. Among them, 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 in the radial direction of the washing tub 100 at a certain distance from the inner surface of the bottom of the washing tub 100. This certain distance enables the clothes to be washed below the position where the maximum radius Rmax of the water stirring member 200 is located.

[0079] The driving device is respectively drivingly connected to the washing tub 100 and the water stirring member 200, and during washing, it drives the washing tub 100 and the water stirring member 200 to rotate simultaneously or alternately, driving the clothes in the tub to move for washing.

[0080] 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. Driven by 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. Driven by the driving device, the stirring shaft 300 and the dehydration shaft rotate synchronously at high speed, and then drive the water stirring member 200 and the washing tub 100 to rotate synchronously at high speed for dehydration.

[0081] 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.

[0082] 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 is 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, and will not cover 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.

[0083] 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.

[0084] 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.

[0085] In the above solution, when the washing tub 100 and the water agitating member 200 rotate in opposite directions, their rotation speeds can be the same or different. In a preferred solution, the washing tub 100 and the water agitating member 200 rotate in opposite directions at different rotation speeds, where the rotation speed of the water agitating member 200 is greater than that of the washing tub 100.

[0086] As another specific embodiment, during the washing process, the driving device drives the washing tub 100 and the water agitating member 200 to rotate in the same direction at different rotation speeds for washing. For example, the rotation speed of the washing tub 100 is less than that of the water agitating member 200. In this way, relative rotation can also be formed between the washing tub 100 and the water agitating member 200.

[0087] Similar to the previous specific embodiment, the washing tub 100 and the water agitating member 200 also rotate forward and backward alternately during the washing process. That is, the washing tub 100 and the water agitating member 200 rotate clockwise simultaneously at different rotation speeds, and then rotate counterclockwise simultaneously, repeating in a cycle.

[0088] As still another specific embodiment, during the washing process, the driving device drives the washing tub 100 and the water agitating member 200 to rotate alternately, that is, when driving the water agitating member 200 to rotate, the washing tub 100 remains stationary, and when driving the washing tub 100 to rotate, the water agitating member 200 remains stationary. In this way, relative rotation can also be formed between the washing tub 100 and the water agitating member 200.

[0089] It should be noted that in the embodiments of the present invention, the radius of the water agitating 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 agitating member 200 in the horizontal direction to the rotation center.

[0090] Specifically, if the cross-section of the water agitating member 200 is circular, then the radius is the radius R1 of the circular cross-section. If the cross-section of the water agitating member 200 is non-circular, then the radius is the distance R2 from the point farthest from the rotation center on the cross-section to the rotation center.

[0091] In a further solution of this embodiment, there is also a certain distance in the height direction between the position where the water agitating member 200 is at the maximum radius Rmax and the mouth of the washing tub 100, so that the washing water level can be higher than the position where the water agitating member 200 is at the maximum radius Rmax, enabling the clothes to be washed above the position where the water agitating member 200 is at the maximum radius Rmax.

[0092] In the above solution, clothes can be accommodated for washing both above and below the position where the water agitating member 200 is at the maximum radius Rmax inside the washing tub 100. In this way, the outer surface of the water agitating 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.

[0093] 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.

[0094] 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.

[0095] 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 .

[0096] 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.

[0097] 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.

[0098] 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.

[0099] 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.

[0100] 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.

[0101] 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, and 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 at the outer periphery of the installation groove 100-1 is the washing surface 100-31.

[0102] 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 at the outer periphery of the water seal structure 500 constitute the washing surface 100-31.

[0103] 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.

[0104] In this embodiment, 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 at the outer periphery of the water-stirring member 200.

[0105] Specifically, in this embodiment, the drain port 100-32 is provided in the area where the bottom of the tub extends from the lower end of the water-stirring member 200 to the tub wall. That is, the drain port 100-32 of the washing tub 100 is provided on the washing surface 100-31 of 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.

[0106] A drain valve is provided at the drain port. 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 collection 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.

[0107] In this embodiment, a driving component corresponding to the drain valve 600 is provided at the bottom of the water collecting device, and the driving component is used to drive the drain valve 600 to open. When the washing device is washing, the working end of the driving component 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 device is draining, the washing tub 100 rotates to the position corresponding to the working end of the driving component, and the working end of the driving component extends upward to push the valve plug 600-1 of the drain valve 600 to move upward, opening the drain port 100-32.

[0108] Preferably, in this embodiment, the washing device further includes a locking component, which can lock and position the washing tub 100. After the locking component locks the washing tub 100, it is more convenient for the driving component to drive the drain valve 600 to open, ensuring normal drainage.

[0109] In this embodiment, the specific structure of the locking component of the washing device can adopt the structure of the locking component in the existing double-power washing device.

[0110] Preferably, as Figure 1 and Figure 2 shown, in this embodiment, a valve cover 800 covering the drain port 100-32 is provided on the inner surface of the bottom of the tub, and a hollow hole 803 for washing water to pass through is provided on the wall of the valve cover 800.

[0111] In this embodiment, by providing the valve cover 800 on the inner surface of the bottom of the tub, the washing water is discharged through the hollow hole 803 on the valve cover 800, which can prevent clothes, lint and other sundries in the washing tub 100 from entering the drain port 100-32. Thus, it can prevent the clothes in the washing tub 100 from blocking the drain valve 600 from closing the drain port 100-32, improving the working stability of the drain valve 600. At the same time, it can filter lint and other sundries in the washing water, avoiding the blockage of the drain port 100-32, the drain pipeline and the floor drain in the user's home by lint and other sundries. In addition, by arranging the drain port 100-32 in the area where the water stirring member 200 extends outward to the barrel wall at the lower end, the valve cover 800 can be in contact with the clothes in the tub, and by using the friction of the clothes, it can avoid the blockage of the hollow hole 803 on the valve cover 800 by lint and other impurities, ensuring the drainage efficiency.

[0112] At the same time, it can also enrich the structure of the washing surface 100-31 at the bottom of the tub and improve the washing effect on clothes.

[0113] As Figure 3As shown, in this embodiment, the valve cover 800 includes a top wall 801 and a surrounding wall 802, and the top wall 801 and the surrounding wall 802 are integrally formed to constitute the valve cover 800. The projection of the valve cover 800 on the bottom of the barrel covers the drain opening 100-32. The lower end of the surrounding wall 802 is arranged around the drain opening 100-32, and the lower end of the surrounding wall 802 abuts against the inner surface of the bottom of the barrel on the outer periphery of the drain opening 100-32. Thus, the drain opening 100-32 is covered within the valve cover 800, and hollow holes 803 for discharging washing water are provided on the top wall 801 and / or the surrounding wall 802 of the valve cover 800.

[0114] In this embodiment, the top wall 801 of the valve cover 800 is arranged above the drain opening 100-32. The surrounding wall 802 of the valve cover 800 extends downward from the edge of the top wall 801, and the lower end of the surrounding wall 802 abuts against the inner surface of the bottom of the barrel on the outer periphery of the drain opening 100-32; the hollow holes 803 are provided on the top wall 801 and / or the surrounding wall 802.

[0115] In this embodiment, the valve cover 800 can be of any shape as long as it can cover the drain opening 100-32 within the valve cover 800.

[0116] In some possible embodiments, the coverage range of the projection of the top wall 801 of the valve cover 800 on the bottom of the barrel is smaller than the range of the drain opening 100-32. The surrounding wall 802 extends obliquely downward from top to bottom towards the outer periphery of the drain opening 100-32, and the lower end of the surrounding wall 802 is arranged around the drain opening 100-32.

[0117] In some other possible embodiments, the coverage range of the projection of the top wall 801 of the valve cover 800 on the bottom of the barrel is greater than or equal to the range of the drain opening 100-32. The surrounding wall 802 extends vertically downward from top to bottom, or the surrounding wall 802 extends obliquely downward towards the outer periphery of the projection of the top wall 801 on the bottom of the barrel in the direction from top to bottom.

[0118] In this embodiment, the top wall 801 is arranged opposite to the drain opening 100-32. The top wall 801 can be arranged in a horizontal form, or in an inclined form, or in a curved form.

[0119] Preferably, in this embodiment, the top wall 801 of the valve cover 800 is arranged as a regular plane, an arc-shaped curved surface, or a wavy curved surface to avoid the four corners that are prone to dirt accumulation.

[0120] Preferably, in this embodiment, the top wall 801 is arranged above the drain opening 100-32 and opposite to the drain opening 100-32. The projection of the top wall 801 of the valve cover 800 on the bottom of the barrel covers the drain opening 100-32, and the surrounding wall 802 extends vertically downward from the edge of the top wall 801.

[0121] Preferably, in this embodiment, an arc-shaped chamfer is provided at the connection between the top wall 801 and the side wall of the valve cover 800. Thus, during the washing process, it is convenient for the clothes to pass through the valve cover 800, and the valve cover 800 can be prevented from damaging the clothes. At the same time, it can further reduce the dead corners on the valve cover 800 that are difficult to clean.

[0122] Preferably, in this embodiment, the valve cover 800 is provided in a long strip shape, and the length direction of the valve cover 800 is perpendicular to the vertical connection line between the rotation center of the water-stirring member 200 and the center of the drain port 100-32. Thus, the resistance of the valve cover 800 to the clothes can be reduced, and the smoothness of the movement of the clothes in the washing tub 100 can be improved.

[0123] The top wall 801 of the valve cover 800 is provided as a downwardly curved arc. Specifically, the top wall 801 of the valve cover 800 is bent downward along the direction away from the vertical connection line between the rotation center of the water-stirring member 200 and the center of the drain port 100-32. Preferably, the end of the top wall 801 of the valve cover 800 away from the vertical connection line between the rotation center of the water-stirring member 200 and the center of the drain port 100-32 is substantially in contact with the inner surface of the tub bottom. In this embodiment, the clothes in the tub are mainly moved circumferentially in the washing tub 100 under the agitation of the water-stirring member 200. Through the above settings, the resistance of the valve cover 800 to the rotation of the clothes can be further reduced, and the clothes can smoothly pass through the area where the valve cover 800 is located.

[0124] In this embodiment, the end of the top wall 801 of the valve cover 800 away from the vertical connection line between the rotation center of the water-stirring member 200 and the center of the drain port 100-32 is substantially in contact with the inner surface of the tub bottom. Specifically, it can be that there is a smooth transition between the end of the upper end surface of the valve cover 800 and the inner surface of the tub bottom, or the end of the upper end surface of the valve cover 800 is slightly higher than the inner surface of the tub bottom. Thus, the resistance of the valve cover 800 to the circumferential movement of the clothes in the washing tub 100 is further reduced.

[0125] Preferably, in this embodiment, the upper end surfaces at both ends of the valve cover 800 are smoothly transitioned to the inner surface of the tub bottom through a rounded corner or a downwardly inclined slope that is bent downward along the direction away from the vertical connection line between the rotation center of the water-stirring member 200 and the center of the drain port 100-32.

[0126] More preferably, the width of the valve cover 800 gradually decreases along the direction away from the vertical connection line between the rotation center of the water-stirring member 200 and the center of the drain port 100-32.

[0127] In this embodiment, through the above settings, when the clothes pass through the area on the inner surface of the bottom of the barrel where the valve cover 800 is located, they can move smoothly along the upper end surface of the valve cover 800, the side surface close to the water stirring member 200, and the side surface far from the water stirring member 200. On the one hand, it is beneficial for the clothes to pass through this area. On the other hand, it can avoid the attachment of dirt on the valve cover 800 by the contact and friction between the clothes and the valve cover 800, and avoid the generation of hard-to-clean dead corners on the washing surface 100-31 at the bottom of the barrel due to the setting of the valve cover 800.

[0128] Further preferably, in this embodiment, the vertical connection line between the rotation center of the valve cover 800 relative to the water stirring member 200 and the center of the drain port 100-32 is symmetric about the left and right.

[0129] In this embodiment, one end of the valve cover 800 close to the water stirring member 200 and one end far from the water stirring member 200 are respectively spaced from the water stirring member 200 and the barrel wall, and both ends of the vertical connection line between the rotation center of the valve cover 800 far from the water stirring member 200 and the center of the drain port 100-32 are spaced from the barrel wall, so that the clothes can pass smoothly between the water stirring member 200 and the valve cover 800 and between the valve cover 800 and the barrel wall, avoiding the situation of jamming the clothes.

[0130] In this embodiment, the drain port 100-32 can be of any shape. Preferably, the drain port 100-32 is circular or oval. The center of the drain port 100-32 is the center of the circular drain port 100-32, or the midpoint of the connection line of the two foci of the oval drain port 100-32. The vertical connection line between the rotation center of the water stirring member 200 and the center of the drain port 100-32 is perpendicular to the rotation center of the water stirring member 200.

[0131] Preferably, in this embodiment, the water stirring member 200 and the washing barrel 100 are coaxially arranged, and the vertical connection line between the rotation center of the water stirring member 200 and the center of the drain port 100-32 extends along the radial direction of the washing barrel 100.

[0132] In this embodiment, the hollow holes 803 on the wall of the valve cover 800 include the first hollow holes 8031 provided on the top wall 801 of the valve cover 800 and the second hollow holes 8032 provided on the surrounding wall 802 of the valve cover 800, and a plurality of the first hollow holes 8031 and the second hollow holes 8032 are respectively provided.

[0133] In this embodiment, both the first hollow holes 8031 and the second hollow holes 8032 are small holes. Specifically, it can avoid the passage of sundries such as lint in the washing water to a certain extent. The first hollow holes 8031 and the second hollow holes 8032 can be of any shape.

[0134] Preferably, in some specific embodiments of the present invention, the first hollow holes 8031 and the second hollow holes 8032 may be small round holes, may be strip-shaped holes, or may also be a plurality of coaxially arranged annular holes.

[0135] In this embodiment, the first hollow hole 8031 is a small round hole, and the second hollow hole 8032 is arranged as a grid hole.

[0136] Specifically, in this embodiment, the second hollow hole 8032 is arranged at the lower end of the surrounding wall 802, is U-shaped with the opening facing downward, and is formed by being recessed upward from the lower end surface of the surrounding wall 802. A plurality of the second hollow holes 8032 are arranged along the length direction of the surrounding wall 802.

[0137] When the valve cover 800 is installed on the bottom of the barrel, the lower end of the surrounding wall 802 of the valve cover 800 fits with the inner surface of the bottom of the barrel, and the inner surface of the bottom of the barrel closes the opening of the U-shaped second hollow hole 8032 to form a grid hole. Thus, during the laundry process, the washing water can flow between the cavity of the valve cover 800 and the washing barrel 100, improving the flushing effect on the inside of the valve cover 800, and can also ensure the drainage effect, enabling the washing water in the washing barrel 100 to be completely discharged from the second hollow hole 8032.

[0138] In some possible embodiments, the hollow holes may cover the entire valve cover. Specifically, the first hollow holes cover the entire top wall of the valve cover, the second hollow holes cover the entire surrounding wall of the valve cover, or the hollow holes may also be concentratedly arranged in a certain area of the top wall and / or the surrounding wall.

[0139] Preferably, in this embodiment, the second hollow holes 8032 are concentratedly arranged on one side of the surrounding wall 802 of the valve cover 800 close to the water stirring member 200 and on one side away from the water stirring member 200, which can improve the drainage efficiency.

[0140] Further preferably, in this embodiment, the first hollow holes 8031 are concentratedly arranged in the middle of the top wall 801 of the valve cover 800.

[0141] Still further preferably, the first hollow holes 8031 are concentratedly arranged within the range covered by the vertical projection of the drain port 100 - 32 on the top wall 801 of the valve cover 800.

[0142] In this embodiment, the top wall 801 of the valve cover 800 is set in a downwardly curved form, which can further increase the layout area for arranging the first hollow holes 8031, facilitating an increase in the number of the first hollow holes 8031.

[0143] In this embodiment, the valve cover 800 is detachably installed on the bottom of the barrel.

[0144] In a specific embodiment of the present invention, the valve cover 800 is mounted on the bottom of the barrel by screws. Specifically, the valve cover 800 is fixed by at least two screws. On the top wall 801 of the valve cover 800, connection grooves 804 extending vertically downward are respectively provided near both ends of the valve cover 800. Through holes for the rod portions of the screws to pass through are provided on the bottoms of the connection grooves 804. Preferably, internal threads adapted to the external threads on the rod portions of the screws are provided on the inner walls of the through holes. Threaded holes adapted to the screws are provided on the bottom of the barrel. The rod portions of the screws pass through the through holes on the bottoms of the connection grooves 804 and are tightened in the threaded holes on the bottom of the barrel. The heads of the screws are embedded in the connection grooves 804 and abut against the bottoms of the connection grooves 804 to achieve the installation of the valve cover 800. At the same time, the connection grooves 804 can hide the heads of the screws and prevent the heads of the screws from damaging clothes.

[0145] In this embodiment, the drain valve 600 includes a valve plug 600-1 and an elastic member for driving the drain valve 600 to close.

[0146] In this embodiment, the valve plug 600-1 is arranged at the drain opening 100-32. The sealing portion of the valve plug 600-1 is arranged in the cavity of the valve cover 800 and moves downward from top to bottom to block the drain opening 100-32. The elastic member is arranged between the valve plug 600-1 and the bottom of the barrel and is used to drive the valve plug 600-1 to move downward.

[0147] Specifically, the shape of the sealing portion of the valve plug 600-1 is adapted to the shape of the drain opening 100-32. The outer peripheral wall of the sealing portion inclines from top to bottom towards the center of the sealing portion. The valve plug 600-1 is inserted into the drain opening 100-32 from top to bottom. At least a part of the sealing portion is inserted into the drain opening 100-32. The outer peripheral wall of the sealing portion elastically abuts against the drain opening 100-32 to close the drain opening 100-32.

[0148] Preferably, in this embodiment, the inner diameter of the upper end of the drain opening 100-32 gradually decreases in the direction from top to bottom. The sealing portion of the valve plug 600-1 is embedded in the upper end of the drain opening 100-32 from top to bottom to seal the drain opening 100-32. Preferably, the upper end surface of the valve plug 600-1 is substantially flush with the inner surface of the bottom of the barrel outside the drain opening 100-32.

[0149] In this embodiment, the upper end surface of the valve plug 600-1 is substantially flush with the inner surface of the bottom of the barrel outside the drain opening 100-32. It can be that the upper end surface of the valve plug 600-1 is flush with the inner surface of the bottom of the barrel outside the drain opening 100-32, or the upper end surface of the valve plug 600-1 is slightly higher than the inner surface of the bottom of the barrel outside the drain opening 100-32, or the upper end surface of the valve plug 600-1 is slightly lower than the inner surface of the bottom of the barrel outside the drain opening 100-32.

[0150] In this embodiment, when the drain valve 600 is opened, the sealing part of the valve plug 600-1 moves into the cavity of the valve cover 800. The washing water enters the cavity of the valve cover 800 through the hollow holes 803 on the valve cover 800, and then flows out from the drain port 100-32.

[0151] 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 below the drain port. The valve plug 600-1 of the drain valve 600 is slidably installed on the support member.

[0152] The support member includes a fixing part and a sleeving part. The fixing part is fixedly installed at the bottom of the washing tub 100 and extends directly below the drain port, and is fixedly connected to the sleeving part. The sleeving part has a hollow slideway. The valve plug 600-1 of the drain valve 600 includes a sealing part and a sliding rod. The sliding rod is slidably arranged in the hollow slideway of the sleeving part to realize the blocking / conducting of the drain port by the sealing part.

[0153] The sealing part further includes a sealing gasket. The sealing gasket is of an annular structure and is arranged on the outer peripheral wall of the sealing part. The sealing part abuts against the inner wall of the drain port through the sealing gasket.

[0154] In order to maintain the self-sealing of the sealing part and the reset sealing after drainage, the drain valve 600 includes an elastic member. One end of the elastic member abuts against the support member, and the other end abuts against the valve plug 600-1. The elastic member deforms when the sealing part slides to a state separated from the drain port, realizing the elastic reset sealing of the sealing part. The initial state of the elastic member is in a compressed state to keep the upper end of the drain port sealed by the sealing part.

[0155] As an implementation manner of this embodiment, the elastic member is a compression spring. The compression spring is sleeved in the hollow slideway of the sleeving part. One end of the compression spring abuts against the sleeving part, and the other end abuts against the bottom of the valve plug 600-1.

[0156] Further, a screw is installed at the end of the sliding rod. The upper end of the sleeving part has a limiting step extending a certain distance towards 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.

[0157] In this embodiment, the water-stirring member 200 has a maximum radius in the radial direction of the washing tub 100 at a certain distance from the inner surface of the tub bottom. A first guiding surface 213 extending from the region near the axis towards the outer periphery is formed below this position, which is used to guide the clothes below this position to move towards the outer periphery along the first guiding surface 213 during washing; a second guiding surface 214 extending upwards is formed below the first guiding surface 213, which is used to guide the clothes to move towards the first guiding surface 213 along the second guiding surface 214 during washing.

[0158] Specifically, 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; the 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.

[0159] The support column 210 is arranged with a variable diameter along the axial direction 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 upwards from the bottom of the washing tub 100, which 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 towards the outer periphery and is inclined upwards, extending to the height where the maximum diameter of the water-stirring member 200 is located, which is used to guide the clothes below this position to move towards the outer periphery during washing.

[0160] The side wall of the first extension section 211 constitutes the second guiding surface 214, and the side wall of the second extension section 212 constitutes the first guiding surface 213.

[0161] Specifically, when 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 clothes can move from the bottom of the washing tub 100 towards the central region, then move upwards along the second guiding surface 214 to the first guiding surface 213, and move towards the outer periphery under the guidance of the first guiding surface 213, and then fall in the region near the barrel wall of the washing tub 100 to form 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.

[0162] Preferably, in this embodiment, the water-stirring ribs 220 have a certain extension length along the axial direction of the washing tub 100 and extend from the second guiding surface 214 to the first guiding surface 213.

[0163] 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 adjacent two water-stirring ribs 220 enables the clothes to be washed in the interval area between adjacent two water-stirring ribs 220, avoiding dead corners where dirt is likely to accumulate.

[0164] 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 of height.

[0165] With the above structure, the water stirring rib 220 can form the Coanda effect during washing, driving the water flow to flow along the outer peripheral edge of the water stirring rib 220. In the area near 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 near the axis can be enhanced, driving the clothes to move upward to the first guiding surface 213 and finally forming a circular path.

[0166] It can be understood that the clothes moving from the bottom of the tub to the central area during washing 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 Rmax of the water stirring part, under the action of inertia and centrifugal force, it moves outward and finally falls along the wall of the washing tub 100 to the bottom of the tub.

[0167] In this embodiment, the washing water in the washing tub 100 rotates around the rotation center of the water stirring member 200 under the agitation of the water stirring member 200, moves from the bottom of the washing tub 100 to the central area, then moves upward along the second guiding surface 214 to the first guiding surface 213, moves outward under the guidance of the first guiding surface 213, and then falls in the area near the wall of the washing tub 100.

[0168] By concentrating the second hollow holes 8032 on one side of the surrounding wall 802 of the valve cover 800 close to the water stirring member 200 and on the side away from the water stirring member 200, the washing water can be made to rush into the cavity of the valve cover 800 from the second hollow holes 8032 on the side of the valve cover 800 away from the water stirring member 200 under the agitation of the water stirring member 200. After flushing the cavity in the valve cover 800, it flows out from the second hollow holes 8032 on the side of the valve cover 800 close to the water stirring member 200. This can improve the flushing effect on the inside of the valve cover 800. At the same time, during the washing process, the washing water in the valve cover 800 can always be in a state of flowing with the washing water outside the cavity, reducing the force on the valve cover 800 and improving the service life and installation stability of the valve cover 800.

[0169] In the preferred solution of this embodiment, fillet structures with smooth transitions are provided at the connection positions between the water stirring ribs 220 and the support columns 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 inside the washing tub 100 to the greatest extent.

[0170] 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.

[0171] 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. 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.

[0172] 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:

[0173] During the drainage process of the washing tub 100, the water-stirring member 200 rotates to accelerate drainage.

[0174] 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 to 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 through holes on the valve cover and improve the drainage speed.

[0175] 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 stir the clothes. Or, when the washing device detects that the drainage times out, the water-stirring member 200 is driven to rotate to stir 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.

[0176] 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.

[0177] 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.

[0178] 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.

[0179] 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.

[0180] 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 that bulges upward, and the highest point of the curved surface forms the top of the water-stirring member 200.

[0181] 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.

[0182] 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 upward from the bottom of the washing barrel 100 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.

[0183] 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 upward from the bottom of the washing barrel 100, 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.

[0184] As another specific embodiment, the water-stirring member 200 has a plurality of positions with the largest radius that are spaced apart 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 positions with the largest radius that are spaced apart.

[0185] In a further aspect 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.

[0186] 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 outward and falling.

[0187] 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 upward along the side surface of the water-stirring member 200 in the central area to below the maximum radius and then moving outward, and moving downward in the area close to the wall of the washing tub 100.

[0188] In a further aspect 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 direction of the water-stirring ribs 220 on the side wall of the support column 210 coincides with the radial direction of the washing tub 100 or forms 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 a surface 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, 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.

[0189] 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 ribs 220 farthest from the rotation axis. The radius is the distance from a point on the water-stirring ribs 220 farthest from the rotation axis to the rotation center.

[0190] 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 lower than the maximum radius of the water-stirring member 200, the clothes can move along the above-mentioned annular path in the water.

[0191] Specifically, during the washing process, a relative rotation occurs between the water-stirring member 200 and the washing tub 100. The laundry moves within the space below the maximum radius of the water-stirring member 200, gathering and moving from the bottom of the washing tub 100 towards the central region. Along the sidewall of the support column 210 or the outer peripheral edge of the water-stirring ribs 220 in the central region, it is lifted 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.

[0192] 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.

[0193] Specifically, during the washing process, a 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 a low water level. While in the area above the maximum radius of the water-stirring member 200, with the forward and reverse alternating rotation of the water-stirring member 200, the laundry moves forward and backward along the circumferential direction of the washing tub 100.

[0194] 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 gather towards the center, resulting in entanglement of the laundry.

[0195] For the solution where the maximum radius of the water-stirring member 200 is located at or near 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 peripheral edge of the water-stirring ribs 220.

[0196] Embodiment Two

[0197] 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 rotation of the water-stirring member 200 drives the washing water in the washing tub 100 to rotate, realizing the washing of the laundry in the washing tub 100.

[0198] In this embodiment, the washing tub 100 is a perforation-free tub.

[0199] 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 rinsing, which is likely to breed bacteria and cause pollution to the clothes along with the washing water.

[0200] 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.

[0201] 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 cooperation 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 position on the bottom of the tub closest to its center where the clothes can reach.

[0202] In this embodiment, by setting 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 position on the bottom of the tub closest to its center 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 and grime to accumulate between the water stirring member 200 and the bottom of the tub and is difficult to clean, and improving the user experience.

[0203] 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 provided 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 cooperation with the bottom of the washing tub 100.

[0204] An installation groove 100-1 is provided at the position on the bottom of the tub closest to its center 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.

[0205] 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.

[0206] 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 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 lower end of 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.

[0207] 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 relatively 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. By using 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, it is possible 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 and is difficult to clean between the water-stirring member 200 and the bottom of the barrel, and improving the user experience.

[0208] 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.

[0209] 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.

[0210] 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.

[0211] 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 bucket" 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 bucket, or that the upper end surface of the water seal structure 500 protrudes from the inner surface of the bottom of the bucket, or that the upper end surface of the water seal structure 500 is slightly lower than the inner surface of the bottom of the bucket.

[0212] 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 arranged in the embedding groove and includes a rubber body main body adapted to the embedding groove and a sealing lip 500-4 elastically abutted between the inner circumference of the rubber body main body and the lower end circumferential 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.

[0213] Preferably, in this embodiment, the spring ring 500-5 is hidden in the embedding 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.

[0214] 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 arranged on the inner circumference of the rubber body main body. The rubber body main body includes a first extension part 500-1 and a second extension part 500-2. The first extension part 500-1 and the second extension part 500-2 are integrally formed. The first extension part 500-1 extends upward along the groove wall of the embedding groove from the bottom of the embedding groove. The second extension part 500-2 extends from the upper end of the first extension part 500-1 towards the axis of the water stirring member 200. The sealing lip 500-4 extends from the inner circumference of the second extension part 500-2 towards the support column 210. The water seal structure 500 abuts against the groove wall of the embedding groove through the first extension part 500-1 and abuts against the lower end circumferential side of the support column 210 through the sealing lip 500-4.

[0215] In this embodiment, the first extension part 500-1 extends along the axial direction of the water stirring member 200. The outer diameter of the first extension part 500-1 is greater than or equal to the groove wall of the embedding groove, and the inner diameter of the first extension part 500-1 is greater than the inner diameter of the installation groove 100-1. The extending direction of the second extension part 500-2 is substantially perpendicular to the extending direction of the first extension part 500-1. Specifically, the second extension part 500-2 may extend horizontally along the radial direction of the water stirring member 200, or may be arranged to extend obliquely downward along the direction towards the axis of the water stirring member 200, or may be arranged to extend obliquely upward along the direction towards the axis of the water stirring member 200.

[0216] Preferably, the second extension portion 500-2 extends radially along the water stirring member 200.

[0217] 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 surface and the upper end of the second extension portion 500-2.

[0218] 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, and the sealing lip 500-4 has multiple turns arranged axially along the water stirring member 200.

[0219] 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 in 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.

[0220] 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 in 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.

[0221] In this embodiment, the sealing lip 500-4 on the inner circumference of the second extension portion 500-2 can be provided with two turns, and 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 in 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 one turn.

[0222] Preferably, in this embodiment, the spring coil 500-5 is sleeved on the lowermost sealing lip 500-4.

[0223] Specifically, the innermost and lowermost sealing lip 500-4 on the inner circumference of the second extension 500-2 extends downwardly and obliquely in a direction close to 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, and the spring ring 500-5 is sleeved on the end of the sealing lip 500-4.

[0224] 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.

[0225] 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-shaped on the support column 210, and at the same time, the spring ring 500-5 can be prevented from contacting the washing water.

[0226] Preferably, in this embodiment, the water seal structure 500 further includes a skeleton 500-3, and the skeleton 500-3 is located inside the rubber body main body, and its extending direction is substantially the same as the extending direction of the rubber body main body. The "substantially the same" may 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 may be a slight deviation between the extending direction of the skeleton 500-3 and the extending direction of the rubber body main body.

[0227] In this embodiment, by using the setting method of the cooperation between the skeleton 500-3 and 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, so that the strength of the rubber body is higher.

[0228] 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.

[0229] 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.

[0230] 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.

[0231] In this embodiment, the shape of the rubber body main body is substantially the same as that 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.

[0232] The outer circumference of the first rubber section 500-8 is elastically abutted against the groove wall of the embedding groove, and / or, the outer circumference of the first rubber section 500-8 is bonded to the groove wall of the embedding groove. 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 contacts the spring ring 500-5.

[0233] 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.

[0234] 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.

[0235] 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, for limiting the axial position of the spring ring 500-5 to avoid the spring ring 500-5 disengaging from the second rubber section 500-9.

[0236] 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.

[0237] Specifically, the first sealing lip 500-6 is provided on the inner circumference of the first rubber section 500-8 and extends upward obliquely 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.

[0238] 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 provided 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.

[0239] Specifically, in this embodiment, the first sealing lip 500-6 is provided with two circles, 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.

[0240] 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 close to 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.

[0241] Preferably, in this embodiment, it further includes a third sealing lip 500-10, and the third sealing lip 500-10 is provided between the two first sealing lips 500-6. Specifically, a third sealing lip 500-10 extending downward is provided 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.

[0242] 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.

[0243] 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.

[0244] In this embodiment, the setting 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.

[0245] In this embodiment, the axial cross-section of the first sealing lip 500-6 located below is a long strip rectangle.

[0246] In this embodiment, the second sealing lip 500-7 is arranged on the inner circumference of the second rubber segment 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.

[0247] Preferably, the second sealing lip 500-7 is arranged in at least two continuous turns along the axial direction of the second rubber segment 500-9.

[0248] Preferably, in this embodiment, the lower end surface of the second rubber segment 500-9 is set as an inclined surface that slopes downward along the direction close to the axis of the water stirring member 200. The lower end of the second rubber segment 500-9 abuts against the bottom of the embedding groove through the inclined surface that slopes downward along the direction close to the axis of the water stirring member 200.

[0249] 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.

[0250] Further preferably, the upper end surface of the first rubber segment 500-8 is set as a horizontal plane extending along the radial direction of the water stirring member 200.

[0251] Embodiment III

[0252] As Figures 8 to 11As shown in the figure, 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.

[0253] In this embodiment, the washing tub 100 is a tub without holes.

[0254] 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 in 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 cause pollution to the clothes along with the washing water.

[0255] 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, so as to avoid dirt, lint and other impurities falling from the clothes from entering the gap between the water stirring member 200 and the bottom of the tub and accumulating, improve the cleanliness of the space in the washing tub 100 that comes into contact with the washing water, and thus improve the washing effect on the clothes.

[0256] 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.

[0257] 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 matched 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 disc-shaped stirring part is cancelled, the coverage area of the gap between the water stirring member and the bottom of the tub can be reduced, and the retention of dirt can be alleviated. 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.

[0258] 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.

[0259] 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.

[0260] 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 circumferential wall of the bottom wall of the support column 210.

[0261] 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.

[0262] Preferably, in this embodiment, the surface of the support column 210 that abuts against 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 abuts 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.

[0263] 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.

[0264] 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 circumferential surface of the lower end of the support column 210.

[0265] 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 is in fit with the groove wall of the installation groove 100-1.

[0266] 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.

[0267] In this embodiment, the lower end of the support column can be inserted between the installation groove and the groove wall of the installation groove for rotational fit, or the lower end of the support column may not be inserted into the installation groove.

[0268] 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 groove 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 groove 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.

[0269] Specifically, at least a part of the lower end of the support column 210 is inserted into the installation groove 100-1, gaps are respectively formed between the lower peripheral surface of the support column 210 and the groove 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 groove opening of the installation groove 100-1 and the lower peripheral surface of the support column 210.

[0270] 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, a connecting portion 215 is provided at the lower end of the support column 210, and the support column 210 is in rotational fit with the groove 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.

[0271] 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 circumferential 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.

[0272] 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.

[0273] Preferably, in some possible embodiments, the lower end of the second water seal structure 502 extends in a direction close to the axis of the water stirring member 200 along the radial direction of the water stirring member 200, and at least a 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.

[0274] As Figure 9 shown, in some other possible embodiments, a fitting groove is coaxially provided 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 circumferential surface of the lower end of the support column 210.

[0275] In this embodiment, the inner side of the barrel bottom specifically refers to the inner surface of the bottom of the washing barrel.

[0276] In this embodiment, 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 the upper end surface of the second water seal structure 502 protrudes from the inner surface of the barrel bottom, or the upper end surface of the second water seal structure 502 is slightly lower than the inner surface of the barrel bottom.

[0277] 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.

[0278] In this embodiment, the inner surface of the bottom of the washing tub 100 extends horizontally, or an extension wall 100-2 that is arranged around the support column 210 and protrudes and extends into the washing tub 100 is provided on the inner surface of the bottom of the washing tub 100. The inner circumference of the extension wall 100-2 is coplanar with the wall of the installation groove 100-1.

[0279] 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 provided, 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.

[0280] 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 basically 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.

[0281] 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.

[0282] 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.

[0283] 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 the 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.

[0284] 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.

[0285] Specifically, a spline groove 210-6 is coaxially provided 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 provided at the lower end of the support column main body, and the spline groove 210-6 is provided on the spline shaft.

[0286] 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 against the bottom of the support column main body. The radial protrusion is inserted into the installation groove, and the radial protrusion constitutes the connecting portion of the support column.

[0287] Axial positioning between the water stirring member 200 and the stirring shaft 300 is achieved through a clamping structure. Specifically, an insert 401 is provided at the end of the stirring shaft 300. An installation cavity 210-2 is provided at the bottom of the water stirring member 200. A locking assembly is provided in the installation cavity 210-2, and an unlocking assembly cooperating with the locking assembly is provided 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 assembly. When disassembling the water stirring member 200, the unlocking assembly is operated to release the locking of the insert 401 by the locking assembly, so that the water stirring member 200 can be detached from the upper end of the stirring shaft 300.

[0288] 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 provided on the water stirring member 200. 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.

[0289] In this embodiment, the provision 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.

[0290] In this embodiment, a sealing groove 210-4 is provided 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 provided at the sealing groove 210-4 to prevent washing water from entering the inside of the water stirring member 200.

[0291] 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.

[0292] The top of the flat plate portion is in the same plane as the top of the water stirring member 200.

[0293] 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 protruding 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. The limiting convex is engaged at the junction between the first section and the second section.

[0294] Preferably, the inner wall of the first section and the inner wall of the second section of the sealing groove 210-4 are connected by a tapered 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 fits with the inner wall of the second section, and the top of the limiting convex fits with the tapered surface between the first section and the second section of the limiting groove. Preferably, the bottom of the limiting convex is provided with a tapered 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.

[0295] 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. 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.

[0296] 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.

[0297] 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.

[0298] Embodiment 4

[0299] 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.

[0300] It should be noted that in the embodiments of the present invention, the maximum radius of the water-stirring member 200 refers to the maximum radius dimension of the horizontal section of the water-stirring member 200. The radius dimension of the horizontal section of the water-stirring member 200 means that the water-stirring member 200 takes a section along the horizontal direction, and the distance from the point farthest from the rotation center on the obtained horizontal section to the rotation center.

[0301] Specifically, if the horizontal section of the water-stirring member 200 is circular, the radius is the radius R1 of the circular section. If the horizontal 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 section to the rotation center.

[0302] In this embodiment, water-stirring ribs 220 are provided on the side wall of the support column 210. The dimension of the water-stirring ribs 220 in the radial direction of the washing tub 100 can remain constant as the height increases, or can also gradually or step by step 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.

[0303] In the above structure, the radius of any horizontal section of the water-stirring member 200 specifically refers to the distance from the farthest point of the water-stirring ribs 220 from the axis on the horizontal section to the central axis.

[0304] In another specific embodiment, the water-stirring ribs extend spirally along the side wall of the support column. At this time, the horizontal section of the water-stirring member 200 may not form a regular geometric figure, but the radius of the horizontal section of the water-stirring member 200 is still the distance from the farthest point of the water-stirring ribs from the axis on the section to the central axis.

[0305] 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.

[0306] 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 maximum radius of the water-stirring member 200. 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 maximum radius of the water-stirring member 200 is located, 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.

[0307] 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 than 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.

[0308] 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.

[0309] 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.

[0310] 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.

[0311] 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.

[0312] Specifically, when the washing equipment applying the washing tub assembly 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.

[0313] 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 the two 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, realizing a smooth transition connection.

[0314] As another specific implementation manner, the inclination angle of the side wall of the second extension section 212 with respect 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 with respect 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 peripherally in a tumbling manner.

[0315] In a further solution of this embodiment, 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 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.

[0316] 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 likely to accumulate dirt will be generated.

[0317] 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.

[0318] As a specific implementation manner, the cross-sectional shape of the water stirring rib 220 along a 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 bent 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 periphery of the water stirring disc 230.

[0319] 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 a circular path.

[0320] 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 position with 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.

[0321] 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 mounting groove 100-1 on the bottom of the tub. The lower end of the water stirring rib 220 is at least flush with the upper end of the connecting portion 215, and 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 being inserted into the connecting portion 215 from the lower end.

[0322] 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 cleanliness inside the washing tub 100 to the greatest extent.

[0323] 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 scrape and damage clothes.

[0324] 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 mounting groove 100-1 on the bottom of the washing tub and is inserted 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, the outer surface of the connecting portion (including the outer side wall and the possible lower end surface) and the area of the bottom of the washing tub outside the mounting groove 100-1 can contact the clothes, and the purpose of preventing cleaning dead corners can also be achieved.

[0325] As a specific embodiment, the thickness of the water-stirring ribs 220 in the circumferential direction gradually decreases radially outward. Along the axial direction, the thickness of the middle region of the water-stirring ribs 220 is greater than that of the upper and lower ends.

[0326] 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 an annular path and turn below the maximum radius of the water-stirring member 200, resulting in better washing effect and preventing the clothes from tangling.

[0327] Embodiment Five

[0328] As Figure 14 shown, in this embodiment, the water-stirring member 200 includes an assembly portion 210-1 and a water-stirring portion 240 extending upward from the assembly portion 210-1. The assembly portion 210-1 is provided as a solid structure, and at least part of the water-stirring portion 240 is provided as a hollow structure. For example, the water-stirring portion 240 is provided with a cavity extending axially from the top to the assembly portion 210-1.

[0329] Specifically, in this embodiment, the assembly portion 210-1 is a solid column, which can increase the connection strength of the water-stirring member 200. The water-stirring portion 240 has an integrally formed hollow structure, and the water-stirring portion 240 is formed on the top of the assembly portion 210-1. The assembly portion 210-1 can also block the lower end of the hollow structure of the water-stirring portion 240.

[0330] 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 radially or nearly radially away from the axis of the support column 210. The water-stirring ribs 220 extend axially along the support column in the length direction, and extend radially outward from the outer circumference of the support column in the width direction. They can be arranged radially or deviate from the radial direction.

[0331] In this embodiment, the support column 210 includes an assembly portion 210-1 and a hollow column 210-8 coaxially connected to the upper part of the assembly portion 210-1. The assembly portion 210-1 is a solid column, preferably a cylinder, and the hollow column 210-8 extends upward from the upper end face of the assembly portion 210-1. The outer diameter of the connection between the hollow column 210-8 and the assembly portion 210-1 may be greater than the diameter of the assembly portion 210-1, or may be less than or equal to the diameter of the assembly portion 210-1; the outer peripheral walls of the hollow column 210-8 and the assembly portion 210-1 are smoothly transitioned and extended upward.

[0332] The water stirring portion 240 has a horizontal section with the largest radius at a certain height from the upper end of the assembly portion 210-1. A water stirring disc 230 is provided at the top end of the support column 210. The maximum radius Rmax of the water stirring portion 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.

[0333] Preferably, the water stirring rib 220 is also provided as a hollow structure.

[0334] More preferably, the internal space of the water stirring rib 220 communicates with the cavity 210-9 inside the hollow column 210-8.

[0335] More preferably, at least a part of the lower end of the water stirring rib 220 extends to the outer peripheral wall of the assembly portion 210-1 and is integrally formed with the assembly portion 210-1, thereby further strengthening the connection strength between the assembly portion 210-1 and the water stirring portion 240.

[0336] In this embodiment, the water stirring portion 240 is connected to the stirring shaft 300 that can rotatably pass through the bottom of the washing tub 100 through the assembly portion 210-1, so that the water stirring member 200 can rotate relative to the washing tub 100.

[0337] Specifically, the assembly portion 210-1 and the stirring shaft 300 are circumferentially positioned by splines and rotate together, and are axially positioned by screws 210-7.

[0338] In this embodiment, a spline groove 210-6 extending coaxially upward from the lower end face of the assembly portion 210-1 is provided on the assembly portion 210-1. The spline groove 210-6 at least partially sleeves the upper end portion of the stirring shaft 300 and is key-connected to the stirring shaft 300. The spline groove 210-6 is formed on the assembly portion 210-1 of the water stirring member 200.

[0339] 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 portion 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 plugging member is installed at the opening.

[0340] Preferably, a sealing groove 210-4 is provided at the top of the water stirring member 200, and the sealing groove 210-4 is recessed coaxially downward from the top surface of the water stirring disk 230. An opening communicating with the cavity 210-9 is provided at the bottom of the sealing groove 210-4.

[0341] Specifically, a through hole, preferably a threaded hole, is provided at the upper end of the assembling portion 210-1. The rod portion of the screw 210-7 passes through the top of the assembling portion 210-1 and is tightened in the threaded hole, and the head of the screw 210-7 abuts against the top of the assembling portion 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.

[0342] 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.

[0343] 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, and the plugging portion is plugged in the sealing groove 210-4 and has an interference fit with the sealing groove 210-4.

[0344] The top of the flat plate portion is in the same plane as the top of the water stirring member 200.

[0345] The sealing groove 210-4 includes a first section and a second section with an increasing diameter from top to bottom. A limiting convex protruding 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 is provided at the lower end of the plugging portion, and the limiting convex is clamped at the junction between the first section and the second section.

[0346] Preferably, the inner walls of the first and second sections 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 and second sections of the sealing groove 210-4. The outer peripheral surface of the limiting convex fits with the inner wall of the second section, and the top of the limiting convex fits with the conical surface between the first and second sections of the limiting groove. Preferably, the bottom of the limiting convex is provided with a conical surface whose outer diameter gradually decreases 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.

[0347] In this embodiment, a sealing convex rib extending along the circumferential direction of the insertion portion is provided in the middle of the insertion portion, and the insertion portion is elastically abutted 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 insertion portion and is provided with multiple circles arranged at intervals along the axial direction of the insertion portion.

[0348] 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.

[0349] The above are only the preferred embodiments of the present invention and do not impose any formal limitations 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 modifications or decorations equivalent to equivalent embodiments by using the technical content prompted above. The implementation schemes in the above embodiments can be further combined or replaced. However, any simple modification, equivalent change, and decoration made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the present invention.

Claims

1. A washing tub assembly, comprising: A washing tub (100) that independently holds washing water during laundry; A water stirring member (200) that extends along the axial direction of the washing tub (100), and its lower end is rotatably installed on the bottom of the tub; It is characterized in that a drain opening (100-32) is provided in the area where the bottom of the tub extends outward from the lower end of the water stirring member (200) to the tub wall, a drain valve (600) is provided at the drain opening (100-32), a valve cover (800) covering the drain opening (100-32) is provided on the inner surface of the bottom of the tub, and hollow holes (803) for the washing water to pass through are provided on the wall of the valve cover (800).

2. The washing tub assembly according to claim 1, wherein The valve cover (800) includes: A top wall (801) provided above the drain opening (100-32); A surrounding wall (802) that extends downward from the edge of the top wall (801), and its lower end abuts against the inner surface of the bottom of the tub on the outer periphery of the drain opening (100-32); the hollow holes (803) are provided on the top wall (801) and / or the surrounding wall (802).

3. The washing tub assembly according to claim 2, wherein The projection of the valve cover (800) on the bottom of the tub covers the drain opening (100-32); Preferably, the projection of the top wall (801) of the valve cover (800) on the bottom of the tub covers the drain opening (100-32), and the surrounding wall (802) extends vertically downward from the edge of the top wall (801); An arc-shaped chamfer is provided at the connection between the top wall (801) and the side wall of the valve cover (800).

4. The washing tub assembly according to any one of claims 1 to 3, wherein The valve cover (800) is strip-shaped, and its length direction is perpendicular to the vertical connection line between the rotation center of the water stirring member (200) and the center of the drain opening (100-32).

5. The washing tub assembly according to claim 4, wherein The top wall (801) of the valve cover (800) is provided as an arc-shaped bent downward; Preferably, the top wall (801) of the valve cover (800) bends downward along the direction away from the vertical connection line between the rotation center of the water stirring member (200) and the center of the drain opening (100-32).

6. The washing tub assembly according to claim 5, wherein The end of the top wall (801) of the valve cover (800) away from the vertical connection line between the rotation center of the water stirring member (200) and the center of the drain opening (100-32) is substantially in contact with the inner surface of the bottom of the tub; Preferably, the upper end surfaces at both ends of the valve cover (800) are smoothly transitioned to the inner surface of the bottom of the tub through rounded corners or downward-inclined slopes that bend downward along the direction away from the vertical connection line between the rotation center of the water stirring member (200) and the center of the drain opening (100-32).

7. The washing tub assembly according to claim 4, wherein, The width of the valve cover (800) gradually decreases along the direction away from the vertical connection line between the rotation center of the water stirring member (200) and the center of the drain opening (100-32).

8. The washing tub assembly according to claim 4, wherein, The valve cover (800) is symmetric about the vertical connection line between the rotation center of the water stirring member (200) and the center of the drain opening (100-32).

9. The washing tub assembly according to any one of claims 1 to 3, characterized in that, The hollow holes (803) include: The first hollow holes (8031), a plurality of which are provided and arranged on the top wall (801) of the valve cover (800); The second hollow holes (8032), a plurality of which are provided and arranged on the surrounding wall (802) of the valve cover (800).

10. The washing tub assembly according to claim 9, wherein The second hollow holes (8032) are arranged at the lower end of the surrounding wall (802) and are U-shaped with the opening facing downward. A plurality of them are arranged along the length direction of the surrounding wall (802). The lower end of the surrounding wall (802) abuts against the inner surface of the tub bottom to form grid holes.

11. The washing tub assembly according to claim 10, wherein One end of the valve cover (800) close to the water stirring member (200) and the end far from the water stirring member (200) are respectively arranged at intervals between the water stirring member (200) and the tub wall; The second hollow holes (8032) are centrally arranged on one side of the surrounding wall (802) of the valve cover (800) close to the water stirring member (200) and on one side far from the water stirring member (200).

12. The washing tub assembly according to any one of claims 1 to 3, characterized in that, The drain valve (600) includes: A valve plug (600-1) arranged at the drain port (100-32). The sealing part of the valve plug (600-1) is arranged in the cavity of the valve cover (800) and moves downward from top to bottom to block the drain port (100-32); An elastic member arranged between the valve plug (600-1) and the tub bottom for driving the valve plug (600-1) to move downward.

13. The washing tub assembly according to claim 12, wherein The inner diameter of the upper end of the drain port (100-32) gradually decreases along the direction from top to bottom. The sealing part of the valve plug (600-1) is embedded in the upper end of the drain port (100-32) from top to bottom; Preferably, the upper end surface of the valve plug (600-1) is substantially flush with the inner surface of the tub bottom on the outer periphery of the drain port (100-32).

14. The washing tub assembly according to any one of claims 1 to 3, wherein The water stirring member (200) has a maximum radius in the radial direction of the washing tub (100) at a certain distance from the inner surface of the tub bottom. A first guiding surface (213) extending from the region close to the axis to the outer periphery is formed below this position, for guiding the clothes below this position to move along the first guiding surface (213) to the outer periphery during washing; A second guiding surface (214) extending upward is formed below the first guiding surface (213), for guiding the clothes to move along the second guiding surface (214) to the first guiding surface (213) during washing.

15. A washing device, characterized in that, It includes the washing tub assembly according to any one of claims 1 to 14.

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