Washing barrel assembly of washing equipment and washing equipment

Abstract

The invention belongs to the technical field of washing equipment, and discloses a washing barrel assembly of washing equipment and the washing equipment, the washing barrel assembly comprises a washing barrel and a water stirring component rotatably arranged in the washing barrel, a mounting through hole is formed in the center of the barrel bottom of the washing barrel, and the water stirring component is rotatably arranged in the washing barrel. A stirring shaft for driving the water stirring component to rotate is rotatably arranged in the mounting through hole in a penetrating manner; the water stirring component extends upwards from the barrel bottom of the washing barrel, and the lower end of the water stirring component sleeves the upper end of the stirring shaft and is not lower than the surface of the barrel bottom on the periphery of the mounting through hole; the lower end of the water stirring component is flush with or basically flush with the side wall of the stirring shaft in the radial direction. According to the washing equipment, the lower end of the water stirring component is basically flush with the side wall of the stirring shaft in the radial direction, the lower end face, directly exposed in washing water, of the water stirring component almost does not exist, and the problem that dirt is likely to hide on the bottom face of a stirring device of existing washing equipment is solved.

Description

Technical Field

[0001] The invention belongs to the technical field of washing equipment, and in particular relates to a washing barrel assembly of washing equipment and the washing equipment. Background Art

[0002] As a convenient clothes washing device, washing machines have been widely used in people's lives. Existing washing machines are divided into drum washing machines and pulsator washing machines, among which pulsator washing machines are popular with users due to their good washing effect.

[0003] A pulsator washing machine usually includes a washing inner barrel and a pulsator, and the pulsator is arranged at the bottom of the washing inner barrel. When the pulsator washing machine is working, the rotation of the pulsator drives the washing water in the inner barrel to rotate, so as to wash the clothes to be washed in the inner barrel. The existing pulsator is usually a flat circular pulsator. When washing, impurities such as dirt and lint on the clothes are easily accumulated in the gap between the bottom surface of the pulsator and the inner barrel, and cannot be effectively cleaned by simply flushing. In addition, dirt and lint are easy to breed bacteria in a humid environment for a long time, which brings a bad user experience. If you want to clean it thoroughly, you need to remove the pulsator and scrub the dirt in the gap. This operation is more complicated, which further deteriorates the user experience.

[0004] In the prior art, a stirring type washing machine is also proposed, which uses an agitator with a certain size along the axial direction of the washing inner barrel to replace the pulsator in the pulsator washing machine. Figure 1 As shown, the agitator 1 in the existing agitator washing machine is often in an "inverted T" shape, consisting of an axial agitator 2 and a radial agitator 3, wherein the radial agitator 3 is arranged at the bottom of the washing tub 4 and has a larger radial dimension, and the clothes 5 can only be washed in the area above the radial agitator 3 in the tub, which still cannot solve the problem that the gap between the agitator 1 and the bottom of the tub is easy to hide dirt and is difficult to clean. Some other agitator washing machines directly install the columnar agitator rod on the impeller at the bottom of the tub, and dirt and bacteria are still easy to accumulate between the impeller and the bottom of the tub.

[0005] In addition, the pulsator in the existing pulsator washing machine is connected to the pulsator shaft that passes through the bottom of the barrel and extends into the washing inner barrel, so that the pulsator shaft can be driven to rotate by a driving device to drive the pulsator to rotate for washing. At the position where the pulsator is connected to the pulsator shaft, the gap between the bottom end surface of the pulsator and the bottom of the barrel is very small, which is particularly easy to hide dirt.

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

[0007] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a washing barrel assembly and washing equipment for washing equipment, which can avoid the problem of dirt and grime accumulating between the water stirring component and the bottom of the washing barrel, especially at the place where the lower end of the water stirring component is connected to the stirring shaft.

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

[0009] A washing tub assembly of a washing device comprises a washing tub and a water stirring member rotatably arranged inside the washing tub, wherein a mounting through hole is arranged at the center of the bottom of the washing tub, and a stirring shaft for driving the water stirring member to rotate is rotatably arranged in the mounting through hole;

[0010] The water stirring member extends upward from the bottom of the washing tub, and the lower end of the water stirring member is sleeved on the upper end of the stirring shaft and is not lower than the bottom surface of the outer periphery of the mounting through hole; the lower end of the water stirring member is flush or substantially flush with the side wall of the stirring shaft in the radial direction.

[0011] Furthermore, the stirring shaft comprises:

[0012] A shaft body is rotatably inserted into the mounting through hole;

[0013] A plug-in portion extending upward from the upper end of the shaft body and inserted into the lower end of the water stirring member;

[0014] The diameter of the lower end of the plug-in portion is smaller than or equal to the diameter of the upper end of the shaft body, and the diameter of the lower end of the water-stirring member is equal to or substantially equal to the diameter of the upper end of the shaft body.

[0015] Further, the plug-in portion and the shaft body have the same diameter; or, the diameter of the lower end of the plug-in portion is equal to the diameter of the upper end of the shaft body, and the diameter of the plug-in portion gradually decreases from the lower end to the upper end;

[0016] The lower end of the water-stirring member is sleeved onto the plug-in portion, and within a certain height range upward from the lower end of the water-stirring member, the difference between the outer diameter and the inner diameter of the water-stirring member increases with increasing height.

[0017] Furthermore, the diameter of the lower end of the plug-in part is smaller than the diameter of the upper end of the shaft body, and the upper end of the shaft body forms a variable diameter end face on the outer periphery of the plug-in part; the lower end of the water-stirring member is mounted on the plug-in part, and the downward projection of the lower end face of the water-stirring member coincides with the variable diameter end face.

[0018] Furthermore, the lower end surface of the water-stirring member is in close contact with the diameter-changing end surface, or a sealing gasket is provided between the lower end surface of the water-stirring member and the diameter-changing end surface.

[0019] Furthermore, the water stirring member comprises:

[0020] An assembly portion extending upward from the lower end of the water stirring member to a certain length;

[0021] The water stirring part is connected to the upper end of the assembly part, and the radius of any horizontal cross section of the water stirring part in the area close to the assembly part is greater than or equal to the radius of any horizontal cross section of the assembly part.

[0022] Furthermore, the water stirring part comprises:

[0023] A support column is provided extending upward along the axis from the upper end surface of the assembly portion;

[0024] A water stirring rib protrudes from the side wall of the support column in a radial direction or obliquely to the radial direction and has a certain extension length in the axial direction;

[0025] The lower end of the water stirring rib is not lower than the upper end of the assembly portion, or the lower end of the water stirring rib extends to the side wall of the assembly portion.

[0026] Furthermore, the water stirring portion has a maximum horizontal cross-sectional radius at a certain distance from the upper end of the assembly portion, and the certain distance enables the clothes to be washed in an area below the horizontal cross-sectional area where the radius of the water stirring portion is the largest;

[0027] The horizontal cross section with the largest radius is formed at the top or middle area of ​​the water stirring part; or, along the axial direction of the washing tub, the water stirring part has a plurality of horizontal cross sections with the largest radius distributed at intervals.

[0028] Furthermore, the area of ​​the bottom of the washing tub extending outward from the mounting through hole to the wall of the washing tub is a washing surface that can contact clothes during washing;

[0029] The horizontal plane where the mounting through hole is located is flush with the washing surface; or, the washing surface has a convex surface on the periphery of the mounting through hole.

[0030] A washing device comprises the washing barrel assembly of the washing device described above.

[0031] After adopting the above technical scheme, the present invention has the following beneficial effects compared with the prior art.

[0032] In the present invention, the lower end of the water stirring member is arranged to be flush or substantially flush with the side wall of the stirring shaft in the radial direction, so that there is almost no lower end surface of the water stirring member directly exposed to the washing water. Compared with the structure of the stirring device of the existing washing equipment with a larger bottom surface area, it can effectively avoid the adhesion of dirt on the lower end surface of the water stirring member, thereby preventing the problem of dirt and grime being hidden between the lower end of the water stirring member and the inner surface of the bottom of the washing barrel.

[0033] In the present invention, the area near the lower end of the water stirring member is an assembly part with a certain height and a small radius. The radius of the water stirring member above the assembly part is further increased, and a horizontal cross-section with the largest radius is formed at a certain height from the upper end of the assembly part. This also avoids the water stirring member having a large radius in the area close to the bottom of the barrel, which is beneficial for exposing most of the area of ​​the bottom of the barrel to the space that can contact the clothes. The clothes can contact the inner surface of the bottom of the barrel during washing, further avoiding the problem of dirt and grime hidden between the water stirring member and the inner surface of the bottom of the washing barrel.

[0034] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation of the present invention. Obviously, the drawings described below are only some embodiments. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the accompanying drawings:

[0036] Figure 1 It is a structural schematic diagram of a stirring washing machine in the prior art;

[0037] Figure 2 is a schematic diagram of a water stirring member having a structure in an embodiment of the present invention being applied in a washing device;

[0038] Figure 3 It is a specific implementation method of the assembly relationship between the assembly part of the water stirring member, the stirring shaft, and the bottom of the washing bucket in the first embodiment of the present invention;

[0039] Figure 4 It is a specific implementation method of the assembly relationship between the assembly part of the water stirring member, the stirring shaft, and the bottom of the washing bucket in the first embodiment of the present invention;

[0040] Figure 5 It is a specific implementation method of the assembly relationship between the assembly part of the water stirring member, the stirring shaft, and the bottom of the washing bucket in the first embodiment of the present invention;

[0041] Figure 6 is a schematic diagram of the relative positions of the water stirring member and the clothes in an embodiment of the present invention;

[0042] Figure 7 is a schematic diagram of a cross section of a water stirring portion of a water stirring member in an embodiment of the present invention;

[0043] Figure 8 is a schematic diagram of the radius of a water stirring member having a circular cross section in an embodiment of the present invention;

[0044] Fig. 9 is a schematic diagram of determining the radius of a water stirring member having an elliptical cross section in an embodiment of the present invention;

[0045] Fig.10 is a schematic diagram of determining the radius of a water stirring member having a triangular cross section in an embodiment of the present invention;

[0046] Fig.11 is a schematic diagram of determining the radius of a water stirring member having a positive cross section in an embodiment of the present invention;

[0047] Fig.12 is a schematic diagram of determining the radius of a water stirring member having a pentagonal cross section in an embodiment of the present invention;

[0048] Fig.13 is a schematic diagram of determining the radius of a water stirring member having an irregular cross-section in an embodiment of the present invention;

[0049] Fig.14 is a schematic diagram of determining the radius of a water stirring member having another irregular cross-section in an embodiment of the present invention;

[0050] Fig.15 is a schematic diagram of a water stirring member of another structure in an embodiment of the present invention being applied to a washing device;

[0051] Fig.16 is a schematic diagram of a water stirring member of another structure in an embodiment of the present invention being applied to a washing device;

[0052] Fig.17 is a schematic diagram of a water stirring member of another structure in an embodiment of the present invention being applied to a washing device;

[0053] Fig.18 is a schematic diagram of a water stirring member of another structure in an embodiment of the present invention being applied to a washing device;

[0054] Fig.19 is a schematic diagram of a water stirring member of another structure in an embodiment of the present invention being applied to a washing device;

[0055] Fig. 20 is a schematic diagram of the movement path of clothes when washing at a low water level in an embodiment of the present invention;

[0056] Fig.21 is a schematic diagram of the movement path of clothes when washing at a high water level in an embodiment of the present invention;

[0057] Fig. 22 It is a specific implementation method of the assembly relationship between the assembly portion of the water stirring member, the stirring shaft, and the bottom of the washing bucket in the second embodiment of the present invention;

[0058] Fig.23It is a specific implementation method of the assembly relationship between the assembly portion of the water stirring member, the stirring shaft, and the bottom of the washing bucket in the second embodiment of the present invention;

[0059] Fig.24 It is a specific implementation method of the assembly relationship between the assembly portion of the water stirring member, the stirring shaft, and the bottom of the washing bucket in the second embodiment of the present invention;

[0060] Fig.25 It is a specific implementation method of the assembly relationship between the assembly portion of the water stirring member, the stirring shaft, and the bottom of the washing bucket in the second embodiment of the present invention;

[0061] Fig.26 It is a schematic diagram of the structure of the washing equipment in the third and fourth embodiments of the present invention;

[0062] Fig. 27 is a schematic diagram of the specific structure of the water stirring component in the third and fourth embodiments of the present invention;

[0063] Fig.28 is a cross-sectional view of the water stirring member in the third and fourth embodiments of the present invention;

[0064] Fig.29 It is a cross-sectional view of another structure of the water stirring member in the third and fourth embodiments of the present invention.

[0065] In the figure: 1, agitator; 2, axial agitator; 3, radial agitator; 4, washing tub; Y, clothes;

[0066] 100, washing tub; 100-2, mounting portion; 100-3, tub bottom; 100-31, washing surface; 110, dehydration shaft; 200, water stirring member; 210-1, assembly portion; 210-11, lower end surface; 210-4, sealing groove; 210-5, sealing cover; 210-6, spline groove; 210-8, hollow column; 210-9, cavity; 210, support column; 211, first extension section; 212, second extension section; 213, first guide surface; 214, second guide surface; 220, water stirring rib; 230, water stirring plate; 231, stirring portion; 240, water stirring portion; 300, stirring shaft; 301, sealing pad; 302, variable diameter end surface; 310, plug-in portion; 320, shaft body; Rmax, maximum radius; C, clothes.

[0067] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but are intended to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0068] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the 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.

[0069] In the description of the present invention, it should be noted that the directions or positional relationships indicated by terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “vertical”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0070] 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.

[0071] like Figures 2 to 27 The embodiment of the present invention provides a washing tub assembly of a washing device, and a washing device having the washing tub assembly. The washing device may be a washing machine, a washing-drying machine, a care machine, or other washing device having a clothes washing function.

[0072] Specifically, the washing tub assembly includes a washing tub 100 and a water stirring member 200 rotatably disposed inside the washing tub 100. The washing device at least includes the above-mentioned washing tub assembly and a driving device, wherein the driving device 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.

[0073] More specifically, the driving device drives the washing tub 100 and the water stirring member 200 through a deceleration clutch device. The deceleration clutch device includes a stirring shaft 300 connected to the water stirring member 200, and a dehydration shaft 110 connected to the washing tub 100.

[0074] During the washing process, the deceleration clutch device performs the washing condition. Under the driving of the driving device, the stirring shaft 300 drives the water stirring member 200 to rotate, and the dehydration shaft 110 is fixed so that the washing tub 100 remains stationary, or the dehydration shaft 110 and the stirring shaft 300 rotate in the opposite direction to drive the washing tub 100 and the water stirring member 200 to rotate in the opposite direction, thereby utilizing the relative rotation trend between the water stirring member 200 and the washing tub 100 to stir the clothes C and the washing water in the tub, and achieve a cleaning effect on the clothes C. During the dehydration process, the deceleration clutch device performs the dehydration condition. Under the driving action of the driving device, the stirring shaft 300 and the dehydration shaft 110 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 utilizing the centrifugal force to spin dry the clothes C in the tub.

[0075] However, when the lint and dirt shed from the clothes C during the washing process are mixed into the washing water, if there is a large and narrow gap structure between the water stirring member 200 and the washing tub 100, these lint and dirt are easily hidden in the gap structure and are difficult to be taken out by the impact force of the water flow during the washing process, and the user needs to manually disassemble the water stirring member 200 for cleaning. If the user does not clean it for a long time, a large amount of dirt will accumulate in the gap between the water stirring member 200 and the washing tub 100, especially between the bottom surface of the water stirring member 200 and the bottom 100-3 of the washing tub 100, which is easy to breed bacteria and cause the problem of secondary pollution of the clothes.

[0076] Embodiment 1

[0077] like Figures 2 to 4 As shown, this embodiment provides a washing tub assembly of a washing device, and a washing device having the washing tub assembly, which is used to solve the problem that there is a dead corner between the bottom surface of the water stirring member 200 and the bottom 100-3 of the washing tub 100 where dirt and grime are hidden and difficult to clean.

[0078] Specifically, the washing tub assembly described in this embodiment includes a washing tub 100, and a water stirring member 200 rotatably disposed inside the washing tub 100. The washing tub 100 has a mounting portion 100-2 at the center of the bottom 100-3 of the washing tub 100, which is used to mount the stirring shaft 300 of the speed reduction clutch device. The mounting portion 100-2 is specifically a mounting through hole, and the stirring shaft 300 is rotatably penetrated in the mounting through hole, and the upper end of the stirring shaft 300 extends into the washing tub 100. The water stirring member 200 extends upward from the bottom 100-3 of the washing tub 100, and its lower end is sleeved on the upper end of the stirring shaft 300.

[0079] In this embodiment, the lower end of the water stirring member 200 is not lower than the surface of the barrel bottom 100 - 3 around the installation through hole, and 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.

[0080] Specifically, the water stirring member 200 includes an assembly part 210-1 and a water stirring part 240. The assembly part 210-1 is extended upward from the lower end of the water stirring member 200 by a certain length, and the interior is hollow to form a mounting cavity with an open bottom. The upper end of the stirring shaft 300 is inserted into the mounting cavity and is key-connected with the assembly part 210-1, thereby driving the water stirring member 200 to rotate. The water stirring part 240 is connected to the upper end of the assembly part 210-1, and when the water stirring member 200 rotates relative to the washing tub 100, the washing water and clothes in the tub can be stirred through the water stirring part 240.

[0081] In the solution of this embodiment, 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, which means that the outer diameter of the lower end of the water stirring member 200, that is, the lower end of the assembly portion 210-1 is equal to or slightly larger than the diameter of the stirring shaft 300. In this way, the bottom of the water stirring member 200 does not have a lower end surface located at the periphery of the stirring shaft 300, or the area of ​​the lower end surface of the bottom of the water stirring member 200 located at the periphery of the stirring shaft 300 is very small.

[0082] When the water stirring member 200 and the stirring shaft 300 have the above-mentioned assembly relationship, after the water stirring member 200 is assembled into the washing barrel 100, the lower end of the water stirring member 200 can be sufficiently close to the barrel bottom 100-3, for example, the water stirring member 200 is set so that the lower end is flush with the inner surface of the barrel bottom 100-3. When the bottom of the water stirring member 200 does not have a lower end surface located on the periphery of the stirring shaft 300, a gap structure located between the lower end of the water stirring member 200 and the barrel bottom 100-3 will not be formed, and thus there will be no problem of dirt and grime. Even if the bottom of the water stirring member 200 still has a very small lower end surface on the periphery of the stirring shaft 300, since the area of ​​the lower end surface is small enough, basically no dirt will be attached; even if a small amount of dirt is attached, the impact force of the water flow during the washing process is sufficient to wash away the small amount of attached dirt, and there will be no problem of dirt accumulation.

[0083] In a specific implementation of this embodiment, the stirring shaft 300 includes a plug-in portion 310 and a shaft body 320, wherein the shaft body 320 is rotatably inserted into the installation through hole of the barrel bottom 100-3, and the plug-in portion 310 extends upward from the upper end of the shaft body 320 and is inserted into the lower end of the water stirring member 200, specifically into the installation cavity inside the assembly portion 210-1. The plug-in portion 310 is key-connected with the assembly portion 210-1, so that the stirring shaft 300 drives the water stirring member 200 to rotate.

[0084] The diameter of the lower end of the plug-in portion 310 is less than or equal to the diameter of the upper end of the shaft body 320. By setting the diameter of the lower end of the water-stirring member 200 to be equal to or substantially equal to the diameter of the upper end of the shaft body 320, the bottom of the water-stirring member 200 can have no or substantially no lower end surface located on the periphery of the stirring shaft 300.

[0085] It can be understood that the basic equality mentioned above can be that the diameter of the lower end of the water-stirring member 200 is slightly larger than the diameter of the upper end of the shaft body 320, but the lower end surface formed is small enough; or the diameter of the lower end of the water-stirring member 200 is slightly smaller than the diameter of the upper end of the shaft body 320. In this case, the bottom of the water-stirring member 200 does not have a lower end surface located on the periphery of the stirring shaft 300.

[0086] In a preferred solution of this embodiment, at the lower end of the water-stirring member 200 , a smooth transition is formed between the side surface of the water-stirring member 200 and the side wall of the stirring shaft 300 as the height changes.

[0087] As a specific structure, the side wall of the shaft body 320 extends in the vertical direction, and the assembly part 210-1 of the water stirring member 200 extends upward from the lower end in a nearly vertical direction. When the assembly part 210-1 is mounted on the stirring shaft 300 and installed in place, when the side wall of the stirring shaft 300 extends upward to the outer peripheral side wall of the assembly part 210-1, there is no obvious turning angle at the lower end of the assembly part 210-1. In this way, when washing, the clothes are more likely to contact the outer peripheral side wall of the assembly part 210-1 when moving near the bottom of the washing tub 100, avoiding the adhesion of dirt there.

[0088] In a specific solution of this embodiment, the diameter of the lower end of the plug-in portion 310 is equal to the diameter of the upper end of the shaft body 320, and the difference between the inner and outer diameters at the lower end of the water-stirring member 200 is substantially zero.

[0089] More specifically, the outer diameter of the lower end of the assembly part 210-1 is equal to or slightly larger than the diameter of the upper end of the shaft body 320, and the inner diameter of the lower end of the assembly part 210-1 is adapted to the diameter of the lower end of the plug-in part 310. Therefore, the difference between the inner and outer diameters at the lower end of the assembly part 210-1 is extremely small, that is, the side wall thickness of the assembly part 210-1 here is extremely thin.

[0090] With the above structure, the thin wall area at the bottom of the assembly part 210-1 cannot actually play a role in fixing the water stirring member 200 after being assembled with the stirring shaft 300. Therefore, further, the upper area of ​​the assembly part 210-1 is set to have a larger wall thickness, and the upper end of the installation cavity inside the assembly part 210-1 needs to extend to the above-mentioned area with a larger wall thickness. When the stirring shaft 300 is extended into the installation cavity and assembled into place, the upper end of the plug-in part 310 is not lower than the above-mentioned area with a larger wall thickness.

[0091] In a specific embodiment, combining Figure 3 and Figure 4As shown, the plug part 310 and the shaft body 320 have the same diameter, that is, the entire stirring shaft 300 or at least the upper half has the same diameter. The outer diameter of the assembly part 210-1 increases with the increase of the distance from the surface of the barrel bottom 100-1, and then the wall thickness of the assembly part 210-1 increases with the increase of the height.

[0092] More specifically, when the stirring shaft 300 adopts the above structure, the outer peripheral side wall of the mounting portion 210-1 extends upward in a nearly vertical direction at the lower end, and the outer peripheral side wall of the mounting portion 210-1 gradually tilts toward the periphery as the height increases, and the tilt angle gradually increases. After reaching a certain height, for example, exceeding half of the height of the mounting cavity in the mounting portion 210-1, the tilt angle of the outer peripheral side wall of the mounting portion 210-1 relative to the vertical direction gradually decreases as it extends.

[0093] In the above structure, the inclination angle of the outer peripheral side wall of the assembly part 210-1 with the vertical direction gradually increases and then gradually decreases with the increase of height. Above the height where the inclination angle begins to gradually decrease, the assembly part 210-1 has a larger wall thickness, so that it has sufficient strength to cooperate with the stirring shaft 300 to fix the water stirring member 200.

[0094] In another specific embodiment, in combination Figure 5 As shown in FIG. 1 , the diameter of the plug-in portion 310 gradually decreases from the lower end to the upper end, and the inner diameter of the assembly portion 210-1 also gradually decreases with the increase of the height, thereby matching the structure of the plug-in portion 310. When the stirring shaft 300 adopts the above structure, the wall thickness of the assembly portion 210-1 also increases with the increase of the height, but the outer diameter of the assembly portion 210-1 can be as follows: Figure 5 As shown, the outer diameter of the assembly portion 210 - 1 increases with the increase of the height, or the outer diameter of the assembly portion 210 - 1 may remain consistent with the change of the height.

[0095] In this embodiment, the area of ​​the bottom 100-3 of the washing tub 100 extending outward from the mounting portion 100-2 to the wall of the washing tub 100 is a washing surface 100-31 that can contact clothes during washing. The washing surface 100-31 can contact clothes in the tub during washing.

[0096] As a specific implementation method, Figure 3 As shown, the horizontal plane where the mounting portion 100-2 is located and the washing surface 100-31 are arranged flush as a whole, which is equivalent to the inner surface of the barrel bottom 100-3 being a flat structure as a whole. With the structure that the lower end of the water stirring member 200 has almost no lower end surface, the barrel bottom 100-3 of the washing barrel 100 is completely exposed to the washing water during washing, and the clothes can contact the barrel bottom 100-3 at all places, especially the area around the mounting through hole, avoiding the cleaning dead corners of the barrel bottom 100-3 that are easy to hide dirt.

[0097] As another specific implementation, Figure 4 As shown, the washing surface 100-31 has a raised surface on the periphery of the mounting portion 100-2, that is, the central area of ​​the barrel bottom 100-3 is raised relative to the peripheral area. In one detailed structure, the washing surface 100-31 extends downwardly from the periphery of the mounting through hole for a distance, and then extends horizontally to the barrel wall of the washing barrel 100. In another detailed structure, the washing surface 100-31 first extends horizontally from the periphery of the mounting through hole, then extends downwardly for a distance, and then extends horizontally to the barrel wall of the washing barrel 100.

[0098] With the above structure, the assembly part 210-1 of the water stirring member 200 is located above the raised area at the center of the barrel bottom 100-3, which makes it easier to fully expose the area of ​​the washing surface 100-31 close to the installation part 100-2, thereby making it more conducive for the area to contact with the clothes and prevent the adhesion and accumulation of dirt.

[0099] In a specific solution of this embodiment, the washing surface 100 - 31 occupies 90% or more of the total area of ​​the barrel bottom 100 - 3 of the washing barrel 100 , and preferably 95% or more of the total area of ​​the barrel bottom 100 - 3 of the washing barrel 100 .

[0100] like Figure 2 and Figure 6 As shown, in a further solution of this embodiment, the radius of any horizontal cross section of the stirring portion 240 near the mounting portion 210-1 is greater than or equal to the radius of any horizontal cross section of the mounting portion 210-1. The region of the stirring portion 240 near the mounting portion 210-1 refers to the lower region of the stirring portion 240.

[0101] In the above scheme, the radius of the assembly part 210-1 itself is small enough to avoid the dead corner between the lower end of the assembly part 210-1 and the bottom 100-3 of the washing bucket 100 where dirt and grime can be hidden. The water stirring part 240 above the assembly part 210-1 is set to have a radius size no smaller than the assembly part 210-1 at least within a certain range at the lower part, which is equivalent to setting a structure with a slightly larger size in the radial direction at a certain height of the water stirring member 200 from the bottom 100-3. That is, the water stirring member 200 of this embodiment does not have a wave plate structure extending in the radial direction at the bottom.

[0102] Thus, compared with a conventional pulsator washing machine or an agitator washing machine with a radial agitator, the installation of the water stirring member 200 described in this embodiment in the washing tub 100 further ensures that most of the area of ​​the tub bottom 100-3 can be exposed in the space where the clothes C can be contacted, and the contact and friction between the clothes C and the tub bottom can be used to prevent the adhesion of dirt. In this way, the problem that dirt is easily hidden and difficult to clean between the water stirring member 200 and the tub bottom 100-3 is further avoided, and the secondary pollution of the clothes by the accumulation of dirt can be prevented, thereby improving the user experience.

[0103] It should be noted that in the embodiment of the present invention, the radius of the horizontal cross section of the water stirring portion 240 refers to the cross section of the water stirring portion 240 taken along the horizontal direction (see Figure 7 ), the distance from the farthest point on the horizontal section to the center of rotation.

[0104] Specifically, if the horizontal cross section of the water stirring portion 240 is Figure 8 If the horizontal cross section of the stirring portion 240 is Figures 9 to 14 For the non-circular shape shown, the radius is the distance R2 from the farthest point on the cross section from the center of rotation to the center of rotation (i.e. the position marked with "×" in the figure).

[0105] Accordingly, in this embodiment and subsequent embodiments, the "diameter" mentioned refers to twice the radius size mentioned above.

[0106] Furthermore, the radius of the horizontal cross section of the water stirring portion 240 at a certain height from the upper end of the assembly portion 210-1 is the largest, that is, Figure 2 and Figure 6 The maximum radius Rmax is shown in FIG. The maximum radius Rmax is at a certain height from the upper end of the mounting portion 210 - 1 so that the clothes C can be washed in an area lower than the maximum radius Rmax.

[0107] In the above scheme, below the maximum radius Rmax, the side of the water stirring part 240, the bottom 100-3 of the washing tub 100 and the tub wall together constitute a first washing space, and the clothes can be washed in the first washing space and are in full contact with the side of the water stirring part 240 and the bottom 100-3 of the washing tub 100, avoiding dirt and grime between the water stirring component 200 and the washing tub 100.

[0108] In a further solution, the water stirring part 240 at the maximum radius Rmax is also at a certain distance from the barrel mouth of the washing tub 100 in the height direction, so that the first washing space is formed above the maximum radius Rmax of the water stirring part 240. In this way, the washing device can use a washing water level higher than the maximum radius Rmax of the water stirring part 240, so that the clothes C can be washed above the position where the maximum radius Rmax of the water stirring part 240 is located.

[0109] In the above scheme, the washing tub 100 can accommodate clothes C for washing both above and below the water stirring part 240 at the maximum radius Rmax. In this way, the outer surface of the water stirring part 240 can basically contact the washed clothes C and generate friction with the clothes C. By increasing the surface area contacting the clothes C, the washing effect can be enhanced.

[0110] Furthermore, in this embodiment, the water stirring portion 240 includes a support column 210 extending upward along the axis from the upper end surface of the assembly portion 210-1, and a water stirring structure disposed on the side wall of the support column 210. Since the first washing space is formed in the washing tub 100 in a region lower than the maximum radius Rmax of the water stirring portion 240, the water stirring structure is at least disposed in a region lower than the maximum radius Rmax.

[0111] As a specific embodiment, the water stirring structure includes a water stirring rib 220 protruding from the side wall of the support column 210. The protruding direction of the water stirring rib 220 on the side wall of the support column 210 coincides with the radial direction of the washing tub 100, or is inclined to the radial direction of the washing tub 100, and forms an angle less than 90° with the radial direction. In this way, when the water stirring rib 220 rotates with the water stirring member 200, the water stirring rib 220 has a surface arranged opposite to the rotation direction, which can achieve an effective stirring effect.

[0112] Furthermore, the water stirring rib 220 has a certain extension length along the axial direction. In a specific solution, the lower end of the water stirring rib 220 is not lower than the upper end of the assembly portion 210-1, that is, there is a certain distance between the lower end of the water stirring rib 220 and the bottom 100-3 of the washing tub 100. In this way, the lower end surface of the water stirring rib 220 can contact the clothes C in the tub, preventing dirt from being hidden between the lower end surface of the water stirring rib 220 and the bottom 100-3.

[0113] In another specific solution, the lower end of the water stirring rib 220 extends to the side wall of the assembly portion 210-1. In this solution, the water stirring rib 220 is very close to the barrel bottom 100-3. To avoid a dead angle between the lower end of the water stirring rib 220 and the barrel bottom 100-3 where the clothes C cannot be contacted, preferably, the radial dimension of the lower end of the water stirring rib 220 is close to zero, and the peripheral edge of the water stirring rib 220 on the side away from the axis extends obliquely upward toward the periphery from the side wall of the assembly portion 210-1.

[0114] In the above scheme, there is no lower end surface facing the bottom of the washing barrel 100 at the lower end of the water-stirring rib 220, or the area of ​​the lower end surface is small enough, and the flow of washing water is sufficient to prevent dirt from adhering there, thereby avoiding the formation of a cleaning dead corner where dirt is easily accumulated.

[0115] In this embodiment, a plurality of water-stirring ribs 220 are arranged at intervals along the circumferential direction on the side wall of the support column 210, and the plurality of water-stirring ribs 220 are preferably arranged symmetrically with respect to the rotation axis. The clothes C can be washed in the interval area between two adjacent water-stirring ribs 220, so as to contact the two side surfaces of the water-stirring ribs 220 and the area of ​​the side wall of the support column 210 between the two water-stirring ribs 220, thereby avoiding the existence of a cleaning dead corner on the side wall of the support column 210 where dirt is easily attached.

[0116] The water-stirring component 200 having the above structure, the side of the water-stirring portion 240 includes both the side wall of the support column 210 and the surface of the water-stirring rib 220 farthest from the rotation axis, and the radius of the water-stirring portion 240 is the distance between the farthest point on the water-stirring rib 220 from the rotation axis and the rotation axis.

[0117] In the above structure, the radius of any horizontal section of the water stirring portion 240 specifically refers to the distance from the farthest end of the water stirring rib 220 from the axis to the central axis on the horizontal section. When the number of the water stirring ribs 220 is an even number, the length of the line connecting the farthest ends of two relative water stirring ribs 220 from the axis is the diameter of the horizontal section of the water stirring portion 240. When the number of the water stirring ribs 220 is an odd number, there are no relatively arranged water stirring ribs 220, and at this time the horizontal section of the water stirring portion 240 does not form an axisymmetric figure, but the diameter of the horizontal section of the water stirring portion 240 is still twice the radius determined above.

[0118] In another specific embodiment, the water stirring ribs extend spirally along the side wall surrounding the support column. In this case, the horizontal cross section of the water stirring portion may not form a regular geometric shape, but the radius of the horizontal cross section of the water stirring portion is still the distance from the farthest end of the water stirring ribs from the axis to the central axis on the cross section.

[0119] As a specific implementation of this embodiment, Figure 2 ,as well as Figures 15 to 17 As shown, the water stirring portion 240 has a unique maximum radius Rmax in the height direction, and at least below the maximum radius Rmax, as the height increases, the distance between the side of the water stirring portion 240 and the barrel wall of the washing barrel 100 decreases as the height increases, that is, the horizontal cross-sectional radius of the water stirring portion 240 increases upward along the axis.

[0120] In the first specific embodiment, if Fig.15As shown, the maximum radius Rmax of the water-stirring portion 240 is set at the top of the water-stirring member 200, that is, the top surface of the water-stirring member 200 is the horizontal cross-section of the water-stirring portion 240 with the maximum radius.

[0121] In the second specific scheme, if Figure 2 As shown, the maximum radius Rmax of the water stirring portion 240 is close to the top of the water stirring member 200, but is at a certain distance from the top of the water stirring member 200. Specifically, the upper side surface of the water stirring portion 240 at its maximum radius Rmax is an upwardly convex curved surface, and the highest point of the curved surface forms the top of the water stirring member 200.

[0122] As a detailed solution, a plurality of water stirring ribs 220 are arranged on the side of the support column 210, and the radial dimension of the water stirring ribs 220 gradually increases from bottom to top, and the maximum radius Rmax of the water stirring portion 240 is formed at the uppermost end. A water stirring plate 230 perpendicular to the axial direction is arranged at the upper end of the support column 210, and the upper side surface of the water stirring plate 230 is an upwardly convex curved surface.

[0123] In the third specific scheme, if Fig.16 and Fig.17 As shown, the maximum radius Rmax of the water stirring portion 240 is located in the middle of the water stirring portion 240 along the height direction.

[0124] In a detailed scheme, Fig.16 As shown, the horizontal cross-sectional radius of the water stirring portion 240 changes continuously in the height direction. Specifically, as the height increases, the horizontal cross-sectional radius of the water stirring portion 240 gradually increases from the bottom 100-3 of the washing tub 100 upward until the maximum radius Rmax is formed, and above the maximum radius Rmax, the horizontal cross-sectional radius of the water stirring portion 240 gradually decreases, and finally forms the top of the water stirring member 200.

[0125] In another detailed scheme, Fig.17 As shown, the horizontal cross-sectional radius of the water stirring portion 240 has a sudden change at at least one height position. Specifically, as the height increases, the horizontal cross-sectional radius of the water stirring portion 240 first gradually increases from the bottom 100-3 of the washing tub 100 upward, and when reaching a certain height, the radius suddenly increases to form the maximum radius Rmax; then the horizontal cross-sectional radius of the water stirring member 200 remains constant within a certain height range, and then suddenly decreases; thereafter, the horizontal cross-sectional radius of the water stirring portion 240 gradually decreases, and finally forms the top of the water stirring member 200.

[0126] In the above scheme, Fig.16 and Fig.17 The figure shows the outer contour of the water stirring portion 240 of the water stirring member 200. Fig.17Taking the structure shown as an example, a specific solution of the structure is to set a water-stirring rib extending from the lower end to the upper end on the support column, and the peripheral edge of the water-stirring rib on the side away from the axis extends upward along the outer contour of the water-stirring portion 240 in the figure, that is, it first tilts toward the periphery, then extends horizontally outward, then extends vertically, then extends horizontally inward, and finally extends obliquely toward the axis. Another specific solution of the structure can be to set a disc-shaped water-stirring structure perpendicular to the support column and having a certain thickness in the middle of the support column to form the maximum radius Rmax, and water-stirring ribs extending along the axial direction are respectively set on the upper and lower sides of the maximum radius Rmax on the side walls of the support column.

[0127] It should be understood that the above-mentioned structure is only used for illustration and is not intended to limit the present invention.

[0128] As another specific implementation, Fig.18 As shown, the water stirring portion 240 has a unique maximum radius Rmax in the height direction, but below the maximum radius Rmax, as the height increases, the horizontal cross-sectional radius of the water stirring portion 240 increases and decreases alternately upward along the axis.

[0129] In detail, between the maximum radius Rmax of the water stirring portion 240 and the lower end of the water stirring portion 240, one or more radially protruding structures are provided. Along the axial direction upward, the horizontal cross-sectional radius of the water stirring portion 240 first gradually increases to the lowest protruding structure, then gradually decreases, and then gradually increases to the next protruding structure. After passing the protruding structure, it gradually decreases and then gradually increases until it finally increases to the maximum radius Rmax of the water stirring portion 240.

[0130] It is understandable that the above-mentioned protruding structure can be formed by the outer contour of the water-stirring rib itself, or can be formed by a plurality of disc-shaped water-stirring structures arranged perpendicular to the supporting column.

[0131] As another specific implementation method, Fig.19 As shown, the water stirring portion 240 has a plurality of spaced maximum radius points Rmax in the axial direction of the washing tub 100. Specifically, as the height increases, the horizontal cross-sectional radius of the water stirring portion 240 increases and decreases alternately, each time increasing to the same radius size and then decreasing, thereby forming a plurality of spaced maximum radius points Rmax.

[0132] In the above solution, between two adjacent maximum radius points Rmax, the side surface of the water stirring portion 240 extends upward, first tilts toward the axis, and then tilts toward the periphery.

[0133] In a further solution of this embodiment, the distance between the maximum radius Rmax of the water stirring portion 240 and the upper end of the mounting portion 210-1 is greater than the extension length of the mounting portion 210-1 along the axial direction of the washing tub 100. Preferably, the distance between the maximum radius Rmax of the water stirring portion 240 and the upper end of the mounting portion 210-1 is several to dozens of times the length of the mounting portion 210-1 along the axial direction of the washing tub 100.

[0134] In this way, it is ensured that the first washing space formed below the maximum radius Rmax of the water stirring part 240 is large enough, so that the clothes can fully contact the side of the water stirring part 240 and the bottom of the washing tub 100 in the washing space to prevent dirt from adhering.

[0135] As a specific solution of this embodiment, Figure 2 As shown, the water stirring portion 240 further includes a water stirring plate 230 disposed at the upper end of the support column 210, and the outer periphery of the water stirring plate 230 forms the maximum radius Rmax of the water stirring portion 240. The water stirring ribs 220 extend upward to the lower surface of the water stirring plate 230 to prevent the existence of a dead corner between the water stirring ribs 220 and the water stirring plate 230 that cannot contact the clothes and is easy to hide dirt.

[0136] Preferably, a smoothly transitioning curved surface is provided between the upper end of the side wall of the support column 210 and the lower surface of the water stirring plate 230. Similarly, a rounded transition is provided between the two side surfaces of the water stirring rib 220 and the lower surface of the water stirring plate 230. In this way, the dead corners on the water stirring member 200 that are difficult to clean are further reduced.

[0137] As a specific solution, Figure 2 As shown, the side wall of the support column 210 extends in the vertical direction or close to the vertical direction, and the radial dimension of the water-stirring rib 220 along the washing tub 100 increases with the increase of the height. The upper end of the water-stirring rib 220 is away from the side of the support column 210 and coincides with the outer periphery of the water-stirring plate 230, so that the radial dimension of the water-stirring rib 220 along the washing tub 100 is maximized as much as possible, which can enhance the agitation of the washing water and enhance the washing effect.

[0138] In a further solution, the peripheral edge of the water stirring rib 220 away from the axis is a curved surface that extends. Specifically, in this embodiment, the peripheral edge of the water stirring rib 220 away from the axis extends upward at a certain angle to the horizontal direction. In the lower area, the acute angle between the water stirring rib 220 and the horizontal direction increases with the increase in height, forming a curved surface that bends away from the axis. After extending beyond a certain height, the acute angle between the water stirring rib 220 and the horizontal direction decreases with the increase in height, forming a curved surface that bends toward the axis, and finally extends to the periphery of the water stirring plate 230.

[0139] In this embodiment, the outer peripheral edge of the water stirring rib 220 is a curved surface extending upward. During the washing process, the rotation of the water stirring member 200 can drive the washing water to produce a flow trend that conforms to the curved surface, so that in the first washing space, the clothes can be lifted upward near the central area of ​​the barrel bottom 100-3, and the clothes are guided to move toward the periphery after the clothes rise with the water flow to a point close to the maximum radius Rmax. In this way, the turning movement of the clothes in the barrel is strengthened, the washing effect can be enhanced, and at the same time, the clothes can be prevented from excessively gathering toward the center and causing entanglement.

[0140] In addition, since the clothes can be washed in the first washing space below the maximum radius Rmax, the clothes contact the side of the water stirring part 240 of the water stirring member 200, and the clothes are driven to move in the barrel mainly by the impact of the water flow generated by the water stirring member 200 stirring the washing water, and the force directly applied by the water stirring member 200 to the clothes is greatly reduced, which also has the effect of preventing the clothes from being entangled. When a higher washing water level is used, when the clothes are washed in the second washing space above the maximum radius Rmax, since the maximum radius of the water stirring part 240 in this embodiment is much smaller than the radius of the washing barrel 100, instead of being close to the radial size of the pulsator in the pulsator washing machine and the barrel diameter, the contact area between the clothes and the water stirring member 200 can also be reduced, so that the possibility of clothes being entangled is greatly reduced.

[0141] Furthermore, the contact area between the clothes and the water stirring member 200 is reduced, and thus the friction between the clothes and the water stirring member 200 is reduced, which helps to reduce the wear of the water stirring member 200 on the clothes, and can also reduce the motor energy consumption when the driving device drives the water stirring member 200 to rotate.

[0142] In this embodiment, the height at which the maximum radius Rmax of the water stirring portion 240 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 uses different water levels for washing, the relative rotation of the water stirring member 200 and the washing tub 100 can generate different water flow modes to drive the clothes to move for washing.

[0143] As a specific embodiment, below the maximum radius Rmax of the water stirring part 240, the clothes are driven by the water flow to move along a circular path for washing. The circular path means that the clothes move toward the center in the bottom area of ​​the washing tub 100, are lifted by the water stirring member 200 to a position close to the maximum radius Rmax of the water stirring part 240, move toward the periphery and then fall.

[0144] See also Fig. 20 and Fig.21As a specific solution, the circular path of the clothes moving below the maximum radius Rmax of the water stirring part 240 during washing includes: the clothes move along the bottom 100-3 of the washing tub 100 toward the central area, move upward along the side of the water stirring part 240 in the central area to below the maximum radius Rmax and then move toward the periphery, and move downward in the area close to the wall of the washing tub 100.

[0145] More specifically, the washing tub assembly of this embodiment is applied to washing equipment, such as Fig. 20 As shown, when the water is operated at a low water level W1 lower than the maximum radius Rmax of the water stirring part 240, the clothes move in the water along the circular path mentioned above.

[0146] In detail, during the washing process, the water stirring member 200 and the washing tub 100 rotate relative to each other, and the clothes move along the path indicated by the arrow in the figure in the space below the maximum radius Rmax of the water stirring part 240. That is, the clothes move and gather along the bottom 100-3 of the washing tub 100 toward the central area, and are lifted to below the maximum radius Rmax along the side wall of the support column 210 or the outer peripheral edge of the water stirring rib 220 in the central area, and then move toward the periphery, and finally fall along the barrel wall of the washing tub 100 to the barrel bottom 100-3, forming a circular motion mode.

[0147] like Fig.21 As shown, when a high water level W2 higher than Rmax of the maximum radius of the water stirring part 240 is used, in an area lower than Rmax of the maximum radius of the water stirring part 240, the clothes move in the water along the above-mentioned circular path; while in an area higher than Rmax of the maximum radius of the water stirring part 240, the clothes move close to the circumferential direction of the washing tub 100.

[0148] In detail, during the washing process, the water stirring member 200 and the washing tub 100 rotate relative to each other, and in the area below the maximum radius Rmax of the water stirring portion 240, the movement path of the clothes is basically the same as the movement path under the low water level W1. In the area above the maximum radius Rmax of the water stirring portion 240, the clothes move alternately forward and reverse along the circumference of the washing tub 100 as the water stirring member 200 rotates alternately forward and reverse.

[0149] In the above scheme, when different washing water levels are used, the water stirring member 200 can drive the clothes in the barrel to move in different ways for washing, providing more diverse washing method options. In addition, in the area below the maximum radius Rmax of the water stirring part 240, since the clothes move along a circular path, on the one hand, the clothes can be tumbled and the washing effect can be enhanced, and on the other hand, the problem that the existing pulsator washing machine easily drives the clothes to gather at the center, causing the clothes to be entangled, is avoided.

[0150] In this embodiment, the diameter of the water stirring member 200 installed in the washing barrel 100 at the lower end is substantially consistent with the diameter of the stirring shaft 300. By setting the difference between the outer diameter and the inner diameter of the assembly portion 210-1 to gradually increase from the lower end to the upper end, the lower end surface of the assembly portion 210-1, which is also the lower end surface of the water stirring member 200, is minimized. In this way, the disc-shaped water stirring portion of the water stirring member 200, which has no bottom, will not cover the barrel bottom 100-3, thereby avoiding the problem of dirt and grime accumulating between the lower end surface of the water stirring member 200 and the barrel bottom 100-3.

[0151] At the same time, the water stirring portion 240 of the water stirring member 200 has a horizontal cross section with a maximum radius at a certain distance from the barrel bottom 100-3, so that a first washing space capable of accommodating clothes is formed below the maximum radius Rmax of the water stirring portion 240. The vertical downward projection of the outer peripheral edge of the water stirring rib 220 below the maximum radius Rmax directly falls on the surface of the barrel bottom 100-3 of the washing barrel 100, and the clothes in the first washing space can fully contact the barrel bottom 100-3 during washing, ensuring that no dirt is hidden between the water stirring member 200 and the barrel bottom 100-3.

[0152] Embodiment 2

[0153] like Figure 2 ,as well as Figure 22 to Figure 25 As shown, the difference between this embodiment and the above-mentioned embodiment 1 is that: the water-stirring member 200 has a lower end surface 210-11 of a certain area, and the stirring shaft 300 is set with a reduced diameter in the area where it is assembled with the water-stirring member 200. The stirring shaft 300 and the water-stirring member 200 are installed and matched so that the lower end surface 210-11 of the water-stirring member 200 does not exceed the side wall of the stirring shaft 300 in the radial direction.

[0154] It can be understood that the lower end surface 210 - 11 of the water-stirring member 200 described in this embodiment is also the lower end surface 210 - 11 of the assembly portion 210 - 1 .

[0155] Specifically, in this embodiment, at the connection point between the plug-in portion 310 and the shaft body 320, the diameter of the plug-in portion 310 is smaller than the diameter of the shaft body 320. In other words, the diameter of the lower end of the plug-in portion 310 is smaller than the diameter of the upper end of the shaft body 320, so that the upper end of the shaft body 320 forms a variable diameter end face 302 at the outer periphery of the lower end of the plug-in portion 310. The diameter of the lower end of the water stirring member 200, that is, the lower end of the assembly portion 210-1 is equal to the diameter of the upper end of the shaft body 320, so that when the assembly portion 210-1 is mounted on the plug-in portion 310 of the stirring shaft 300, the downward projection of the lower end face 210-11 of the assembly portion 210-1 completely overlaps with the variable diameter end face 302.

[0156] This embodiment adopts the above-mentioned assembly structure. After the water-stirring member 200 and the stirring shaft 300 are assembled, the lower end face 210-11 of the water-stirring member 200 is completely blocked by the variable diameter end face 302 formed at the connection between the plug-in portion 310 on the stirring shaft 300 and the shaft body 320. Therefore, there is no end face structure completely opposite to the bottom 100-3 of the washing barrel 100, which can also prevent the problem of dirt and grime accumulating between the lower end of the water-stirring member 200 and the bottom 100-3.

[0157] As a specific implementation of this embodiment, Fig. 22 As shown, after the water stirring member 200 and the stirring shaft 300 are assembled in place, the lower end surface 210-11 of the assembly portion 210-1 is tightly fitted with the reduced diameter end surface 302 on the stirring shaft 300. In this way, during the washing process, the washing water will basically not penetrate between the lower end surface 210-11 of the assembly portion 210-1 and the reduced diameter end surface 302, avoiding the existence of a gap where wire scraps and dirt will accumulate.

[0158] As another specific implementation of this embodiment, Fig.23 As shown, a sealing gasket 301 is provided between the lower end surface 210-11 of the assembly portion 210-1 and the reduced diameter end surface 302 on the stirring shaft 300. The sealing gasket 301 is clamped by the lower end surface 210-11 of the assembly portion 210-1 and the reduced diameter end surface 302 on the stirring shaft 300, and can prevent washing water from entering between the lower end surface 210-11 of the assembly portion 210-1 and the reduced diameter end surface 302, thereby ensuring that wire scraps and dirt will not accumulate between the two.

[0159] It is understandable that the sealing gasket 310 is sleeved on the plug-in portion 310 of the stirring shaft 300, and the inner diameter of the sealing gasket 310 can be the same as or larger than the lower end diameter of the plug-in portion 310, but it is necessary to ensure that the outer diameter of the sealing gasket 310 is substantially the same as the diameter of the shaft body 320. If the outer diameter of the sealing gasket 310 is too small, a gap will be formed between the lower end face 210-11 of the assembly portion 210-1 and the reduced diameter end face 302 at the periphery; and if the outer diameter of the sealing gasket 310 is too large, a dead corner that can hide dirt and grime may be formed on the lower surface of the sealing gasket 310.

[0160] Furthermore, in Fig. 22 and Fig.23 In the specific embodiment shown, the outer diameter of the assembly portion 210-1 increases as the distance from the surface of the barrel bottom 100-3 increases, that is, there is a certain angle between the extension direction of the side wall of the assembly portion 210-1 and the side wall of the shaft body 320. It should be noted that the side wall of the assembly portion 210-1 can extend along a straight line or a curve.

[0161] In another specific embodiment, Fig.24As shown, the side wall of the mounting portion 210 - 1 extends parallel to the axis, so that the outer diameter of the mounting portion 210 - 1 remains consistent in the axial direction.

[0162] In another specific implementation of this embodiment, different from Fig. 22 and Fig.23 The diameter of the plug-in portion 310 shown in the figure is kept consistent in the axial direction. Fig.25 As shown, the plug-in portion 310 can be configured as a structure with a smaller diameter at the upper end and a larger diameter at the lower end. For example, the plug-in portion 310 can be configured as a truncated cone structure with a diameter gradually decreasing upward along the axis, and the mounting cavity inside the assembly portion 210-1 matches the truncated cone structure of the plug-in portion 310.

[0163] Further, similar to the above-mentioned first embodiment, the bottom 100 - 3 of the washing tub 100 may also adopt the following two different structures.

[0164] Specifically, in one embodiment, Fig. 22 As shown, the inner surface of the barrel bottom 100-3 of the washing barrel 100 extends horizontally outward from the installation through hole. During washing, the clothes can contact the barrel bottom 100-3 at various places, especially the area around the installation through hole.

[0165] In another specific embodiment, Fig.23 As shown, the washing surface 100-31 has a raised surface on the periphery of the mounting portion 100-2, thereby forming a raised area below the assembly portion 210-1. In one detailed structure, the washing surface 100-31 extends downwardly from the periphery of the mounting through hole at an angle for a distance, and then extends horizontally to the barrel wall of the washing tub 100. In another detailed structure, the washing surface 100-31 first extends horizontally from the periphery of the mounting through hole, then extends downwardly at an angle for a distance, and then extends horizontally to the barrel wall of the washing tub 100. The above structure makes it easier to fully expose the area of ​​the washing surface 100-31 close to the mounting portion 100-2, which is beneficial to the contact between the area and the clothes and prevents the adhesion and accumulation of dirt.

[0166] In this embodiment, the upper area of ​​the stirring shaft 300 is set as a stepped variable diameter structure, and the variable diameter end surface 302 formed by the variable diameter structure is used to shield the lower end surface 210-11 of the water stirring member 200, which can also prevent dirt from accumulating between the lower end surface 210-11 of the water stirring member 200 and the bottom 100-3 of the washing bucket 100. Compared with the above-mentioned embodiment 1, it is not necessary to set the wall thickness at the lower end of the assembly part 210-1 very thin, which is easier to process and is also conducive to ensuring the reliability of the assembly part 210-1 structure.

[0167] Embodiment 3

[0168] like Figure 26 to Figure 28As shown, this embodiment provides a specific structure of a water stirring member 200 based on the above-mentioned embodiment 1 or 2.

[0169] Specifically, Fig.26 As shown, the assembly portion 210 - 1 at the bottom of the water stirring member 200 is assembled with the stirring shaft 300 using the solution in the above-mentioned second embodiment.

[0170] However, it is understandable that the water stirring member 200 in this embodiment can also be assembled with the stirring shaft using the solution in the first embodiment. Fig.29 In the structure shown, the assembly portion 210 - 1 is generally larger at the top and smaller at the bottom. At the lower end of the assembly portion 210 - 1 , the difference between the inner diameter and the outer diameter is substantially zero.

[0171] In this embodiment, the water stirring portion 240 of the water stirring member 200 includes a support column 210 extending upward from the top of the assembly portion 210-1, a water stirring rib 220 protruding radially or nearly radially on the side wall of the support column 210, and a water stirring plate 230 arranged at the top of the support column 210.

[0172] As a specific embodiment, the top surface of the water stirring plate 230 is an upwardly convex curved surface. In a preferred embodiment, a convex stirring portion 231 is provided on the curved surface for rubbing against the clothes above and stirring the washing water when washing at a higher water level, thereby enhancing the washing effect.

[0173] In this embodiment, the maximum radius Rmax of the water stirring portion 240 is formed by the outer periphery of the water stirring plate 230. Below the water stirring plate 230, the radial dimension of the support column 210 increases with increasing height, thereby forming a guiding surface for guiding the movement of clothes during washing.

[0174] Specifically, in this embodiment, the support column 210 extends from bottom to top and sequentially includes a first extension section 211 and a second extension section 212. The side wall of the first extension section 211 extends upward from the upper end of the assembly portion 210-1. The side wall of the second extension section 212 extends from the upper end of the first extension section 211 to the periphery and tilts upward, and finally extends to the height where the radius Rmax of the water stirring portion 240 is the maximum, that is, extends to the lower surface of the water stirring plate 230.

[0175] It should be noted that the side wall of the first extension section 211 extends upward from the upper end of the assembly portion 210-1, and can be extended vertically upward, or extended upward at an angle relative to the vertical direction, gradually approaching or moving away from the barrel wall of the washing barrel 100, or can be extended upward along a curve with a larger curvature and gradually approaching or moving away from the barrel wall of the washing barrel 100.

[0176] More specifically, the side wall of the first extension section 211 extends in 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 is inclined at a larger angle to the vertical direction than the side wall of the first extension section 211, and as the height increases, the inclination angle between the side wall of the second extension section 212 and the vertical direction gradually increases, forming a curved surface that bends toward the axis.

[0177] In a detailed solution, the upper end of the side wall of the second extension section 212 overlaps with the outer periphery of the water stirring tray 230 , so that the lower surface of the water stirring tray 230 is completely covered by the upper end surface of the support column 210 .

[0178] Furthermore, in this embodiment, the guide surface includes a first guide surface 213 formed by the side wall of the second extension section 212, which is used to guide the clothes rising from the central area of ​​the washing tub 100 to the bottom of the central area to move toward the periphery along the first guide surface 213 during washing. The guide surface also includes a second guide surface 214 formed by the side wall of the first extension section 211, which is used to guide the clothes to rise from the second guide surface 214 to the first guide surface 213 during washing.

[0179] Specifically, the water stirring member 200 provided in this embodiment is applied to a washing device. During washing, the water stirring member 200 rotates relative to the washing tub 100, and the clothes can move along the bottom 100-3 of the washing tub 100 toward the central area, and then move upward along the second guide surface 214 to the first guide surface 213, and then move toward the periphery under the guidance of the first guide surface 213, and then fall in the area close to the wall of the washing tub 100, forming a circular path. On the one hand, the tumbling of the clothes in the tub can be enhanced to improve the washing effect, and on the other hand, the probability of the clothes concentrating toward the center and getting entangled is reduced.

[0180] As a specific implementation of this embodiment, at the connecting position of the first extension section 211 and the second extension section 212, the angle between the side walls of both and the vertical direction is the same. That is, the first guide surface 213 and the second guide surface 214 have the same inclination angle at the connecting position, achieving a smooth transition connection.

[0181] As another specific embodiment, the inclination angle of the side wall of the second extension section 212 relative to the vertical direction at the lower end position is slightly higher than the inclination angle of the side wall of the first extension section 211 relative to the vertical direction, so that an angle less than but close to 180° is formed at the connection between the first guide surface 213 and the second guide surface 214. In this way, when the clothes move upward along the second guide surface 214 to the first guide surface 213, it can play a certain buffering role on the clothes, and strengthen the tendency of the clothes to move toward the periphery in a rolling manner.

[0182] 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 circumference of the support column 210, and the interval angle between two adjacent water stirring ribs 220 enables the clothes to be washed in the interval area between the two adjacent water stirring ribs 220, and the clothes 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 guide surface 214.

[0183] In this way, the area between two adjacent water-stirring ribs 220 of the side walls of the first extension section 211 and the second extension section 212 can contact the clothes without generating dead corners where dirt is easily accumulated.

[0184] Furthermore, in the present embodiment, the radial dimension of the water stirring rib 220 along the washing tub 100 increases first and then decreases from the lower end to the upper end.

[0185] As a specific embodiment, the cross-sectional shape of the water stirring rib 220 parallel to the radial direction of the washing tub 100 is close to a shuttle shape, and the peripheral edge surface of the water stirring rib 220 extends from bottom to top, and the acute angle between the extension direction and the vertical direction gradually decreases, so that the peripheral edge surface of the water stirring member 200 forms a curved surface that bends toward the barrel wall of the washing tub 100. The upper end of the peripheral edge surface of the water stirring rib 220 coincides with the outer periphery of the water stirring tray 230.

[0186] The water-stirring ribs 220 have the above-mentioned structure, which can form a Coanda effect during washing, driving the water flow to flow along the outer peripheral edge of the water-stirring ribs 220, so that in the area close to the axis of the washing tub 100, the water flow has a flow tendency to fit the outer peripheral edge of the water-stirring ribs 220, and as the height increases, the flow direction of the water flow is closer to upward rather than flowing toward the periphery. 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 guide surface 213, and finally forming a circular path.

[0187] It can be understood that the clothes moving along the bottom 100-3 of the barrel toward the central area can also be lifted along the outer edge of the water-stirring ribs 220 after contacting the water-stirring ribs 220. After moving to the maximum radius Rmax of the water-stirring part 240, they move toward the periphery under the action of inertia and centrifugal force, and finally fall to the bottom 100-3 of the barrel along the wall of the washing barrel 100.

[0188] As a preferred embodiment, in order to ensure that there is no cleaning dead corner between the lower end of the water-stirring rib 220 and the bottom of the washing bucket 100, the side of the water-stirring rib 220 away from the axis (that is, the peripheral edge surface of the water-stirring rib 220) at least extends obliquely upward toward the periphery in the lower end area. At the lower end of the water-stirring rib 220, the acute angle α between the extension direction of the peripheral edge surface of the water-stirring rib 220 and the horizontal direction is not less than 20°, and preferably not less than 30°.

[0189] By setting the above-mentioned inclination angle, it can be ensured that the clothes can contact the lower end of the water stirring rib 220, avoiding the existence of a cleaning dead angle at the lower end of the water stirring rib 220. At the same time, the outer peripheral edge surface of the water stirring rib 220 forms a curved surface that bends toward the barrel wall of the washing tub 100, which is conducive to forming a sufficiently large washing space below the maximum radius Rmax of the water stirring portion 240, ensuring that the surface of the water stirring portion 240 below the maximum radius Rmax can fully contact the clothes, and there is no cleaning dead angle.

[0190] In the preferred scheme of this embodiment, a smoothly transitioned rounded corner structure is provided at the connection position between the water stirring rib 220 and the support column 210, so that there are almost no cleaning dead corners on the water stirring component 200 where dirt is easily accumulated, thereby ensuring the cleanliness and hygiene of the inside of the washing barrel 100 to the greatest extent.

[0191] Further preferably, there is a rounded transition between the outer edge of the water-stirring rib 220 and the two side surfaces of the water-stirring rib 220 to avoid the existence of sharp corners that may scratch and damage clothes.

[0192] In this embodiment, by designing the specific structure of the water stirring member 200, a space for washing clothes is formed below the maximum radius Rmax of the water stirring portion 240. Washing clothes in this space effectively avoids the problem that the water stirring member 200 is easy to hide dirt and grime between the barrel bottom 100-3 and is difficult to clean. At the same time, the specific structure of the support column 210 and the water stirring rib 220 cooperates to drive the clothes to move along the circular path below the maximum radius Rmax.

[0193] Embodiment 4

[0194] like Figure 26 to Figure 29 As shown, this embodiment is a further limitation of the above-mentioned embodiment three, and 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, and the assembly portion 210-1 is configured as a solid structure, and the water-stirring portion 240 is at least partially configured as a hollow structure, for example, the water-stirring portion 240 has a cavity arranged axially from the top end to the assembly portion 210-1.

[0195] Specifically, in this embodiment, the assembly part 210-1 is a solid column, which can increase the connection strength of the water stirring member 200. The water stirring part 240 has an integrally formed hollow structure, and the water stirring part 240 is formed on the top of the assembly part 210-1, and the assembly part 210-1 can also block the lower end of the hollow structure of the water stirring part 240.

[0196] As a specific embodiment, the water-stirring member 200 includes a support column 210, and a water-stirring rib 220 arranged on the side wall of the support column 210 and protruding along the radial direction or near radial direction of the support column away from the axis of the support column 210. The water-stirring rib 220 extends along the axial direction of the support column in the length direction, and extends in the width direction away from the peripheral direction of the support column. The water-stirring rib 220 can be arranged radially or deviate from the radial direction.

[0197] In this embodiment, the support column 210 includes a mounting portion 210-1 and a hollow column 210-8 coaxially connected to the upper portion of the mounting portion 210-1. The mounting portion 210-1 is a solid column, preferably a cylindrical body, and the hollow column 210-8 extends upward from the upper end surface of the mounting portion 210-1. The outer diameter of the connection between the hollow column 210-8 and the mounting portion 210-1 can be greater than the diameter of the mounting portion 210-1, or less than or equal to the diameter of the mounting portion 210-1; the outer peripheral wall of the hollow column 210-8 smoothly transitions with the outer peripheral wall of the mounting portion 210-1 and extends upward.

[0198] The water stirring portion 240 has a horizontal cross section with the largest radius at a certain height from the upper end of the assembly portion 210-1. A water stirring plate 230 is provided at the top 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 plate 230. The top surface of the water stirring plate 230 is a curved surface convex upward. A cavity 210-9 similar to the outer shape of the support column 210 is formed inside the hollow column 210-8.

[0199] Preferably, the water stirring ribs 220 are also configured as hollow structures.

[0200] Further preferably, the inner space of the water stirring rib 220 is connected to the cavity 210 - 9 inside the hollow column 210 - 8 .

[0201] Further preferably, the lower end of the water-stirring rib 220 at least partially 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 strength of the connection between the assembly portion 210 - 1 and the water-stirring portion 240 .

[0202] In this embodiment, the water stirring portion 240 is connected to the stirring shaft 300 rotatably passing 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 .

[0203] Specifically, the assembly portion 210 - 1 and the stirring shaft 300 are positioned circumferentially by splines and rotate together, and are positioned axially by screws (not shown in the figure).

[0204] In this embodiment, the assembly portion 210-1 is provided with a spline groove 210-6 extending upwardly and coaxially from the bottom end surface of the assembly portion 210-1, and the spline groove 210-6 is at least partially sleeved on the upper end of the stirring shaft 300 and key-connected with the stirring shaft 300. The spline groove 210-6 is formed on the assembly portion 210-1 of the water stirring member 200.

[0205] In this embodiment, the top of the water stirring member 200 is provided with an opening communicating with the cavity 210-9 inside the hollow column, and a screw enters the cavity 210-9 through the opening and downwardly connects with the stirring shaft 300 connected by a key in the assembly portion 210-1, thereby fixing the water stirring member 200 with the stirring shaft 300 in the axial direction. In order to prevent water from entering the cavity 210-9, a blocking component is installed at the opening.

[0206] Preferably, a sealing groove 210-4 is provided on the top of the water stirring member 200, and the sealing groove 210-4 is formed by being coaxially recessed downward from the top surface of the water stirring plate 230. An opening communicating with the mold cavity 210-9 is provided on the bottom of the sealing groove 210-4.

[0207] Specifically, the upper end of the assembly part 210-1 is provided with a through hole, preferably a threaded hole, the shank of the screw passes through the top of the assembly part 210-1 and is tightened in the threaded hole, and the head of the screw abuts against the top of the assembly part 210-1. The operator disassembles and assembles the screw through the opening on 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 screw.

[0208] The sealing groove 210 - 4 is provided with a sealing cover 210 - 5 for sealing the upper end of the water stirring member 200 to prevent washing water from entering the interior of the water stirring member 200 .

[0209] Specifically, the sealing cover 210-5 includes a flat plate portion and an inserting 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 inserting portion is inserted into the sealing groove 210-4 and has an interference fit with the sealing groove 210-4.

[0210] The top of the flat plate portion and the top of the water stirring member 200 are in the same plane.

[0211] The sealing groove 210-4 includes a first section and a second section with increasing diameters from top to bottom. The lower end of the plug-in portion is provided with a limiting protrusion protruding from the outer wall of the lower end of the plug-in portion in a direction away from the axis of the water-stirring member 200, and the limiting protrusion is engaged at the junction between the first section and the second end.

[0212] Preferably, the inner wall of the first section and the inner wall of the second section of the sealing groove 210-4 are transitionally connected by a conical surface that is inclined from top to bottom in a direction away from the axis of the water stirring member 200, the shape of the limiting protrusion 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 protrusion is in contact with the inner wall of the second section, and the top of the limiting protrusion is in contact with the conical surface between the first section and the second section of the limiting groove. Preferably, the bottom of the limiting protrusion is set as a conical surface with a gradually decreasing outer diameter from top to bottom, and the outer diameter of the bottom of the limiting protrusion is smaller than the inner diameter of the notch of the sealing groove 210-4.

[0213] In this embodiment, a sealing ridge extending along the circumference of the plug-in portion is provided in the middle of the plug-in portion, and the plug-in portion elastically abuts against the inner wall of the first section of the sealing groove 210-4 through the sealing ridge. Preferably, the sealing ridge extends along the circumference of the plug-in portion and is provided with multiple circles arranged at intervals along the axial direction of the plug-in portion.

[0214] Preferably, in this embodiment, the sealing ridge is inclined upward along the extension direction away from the axis of the water-stirring member 200 to improve the smoothness of the insertion of the sealing cover 210 - 5 .

[0215] In this embodiment, a specific assembly structure of the water stirring member 200 and the stirring shaft 300 is provided. By setting the water stirring portion 240 of the water stirring member 200 to be hollow inside, the purpose of fixing the water stirring member 200 and the stirring shaft 300 by installing screws from top to bottom can be achieved, and the overall weight of the water stirring member 200 is also reduced, thereby further reducing the energy consumption of the motor of the driving device driving the water stirring member 200 to rotate. By setting the sealing cover 210-5, it is possible to prevent washing water from entering the interior of the water stirring member 200, thereby preventing the problem of wire scraps or dirt entering with the washing water and remaining in the interior of the water stirring member 200 and being unable to be cleaned.

[0216] The above is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment, it is not used to limit the present invention. Any technician familiar with this patent can make some changes or modify the technical contents suggested above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments according to 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 solution of the present invention.

Claims

1. A washing tub assembly of a washing device, comprising a washing tub (100), and a water stirring member (200) rotatably disposed inside the washing tub (100), characterized in that: A mounting through hole is provided at the center of the bottom (100-3) of the washing bucket (100), and a stirring shaft (300) for driving the water stirring member to rotate is rotatably inserted into the mounting through hole; The water stirring member (200) is extended upward from the bottom (100-3) 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 surface of the bottom (100-3) at the periphery of the mounting 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.

2. The washing tub assembly of the washing equipment according to claim 1, characterized in that: The stirring shaft (300) comprises: A shaft body (320) is rotatably inserted into the mounting through hole; An inserting portion (310) extending upward from the upper end of the shaft body and inserted into the lower end of the water stirring member; The lower end diameter of the plug-in portion (310) is smaller than or equal to the upper end diameter of the shaft body (320), and the lower end diameter of the water-stirring member (200) is equal to or substantially equal to the upper end diameter of the shaft body (320).

3. The washing tub assembly of the washing equipment according to claim 2, characterized in that: The plug-in portion (310) and the shaft body (320) have the same diameter; or, the diameter of the lower end of the plug-in portion (310) is equal to the diameter of the upper end of the shaft body (320), and the diameter of the plug-in portion (310) gradually decreases from the lower end to the upper end; The lower end of the water-stirring member (200) is fitted onto the plug-in portion (310), and within a certain height range upward from the lower end of the water-stirring member (200), the difference between the outer diameter and the inner diameter of the water-stirring member (200) increases as the height increases.

4. The washing tub assembly of the washing equipment according to claim 2, characterized in that: The diameter of the lower end of the plug-in portion (310) is smaller than the diameter of the upper end of the shaft body (320), and the upper end of the shaft body (320) forms a variable diameter end surface (302) on the outer periphery of the plug-in portion (310); the lower end of the water-stirring member (200) is fitted onto the plug-in portion (310), and the downward projection of the lower end surface of the water-stirring member (200) coincides with the variable diameter end surface.

5. The washing tub assembly of the washing equipment according to claim 4, characterized in that: The lower end surface (210-11) of the water-stirring member (200) is in close contact with the diameter-changing end surface (302), or a sealing gasket (301) is provided between the lower end surface (210-11) of the water-stirring member (200) and the diameter-changing end surface (302).

6. The washing bucket assembly of the washing equipment according to any one of claims 1 to 5, characterized in that: The water stirring member (200) comprises: An assembly portion (210-1) extending upwards by a certain length from the lower end of the water stirring member (200); The water stirring portion (240) is connected to the upper end of the assembly portion (210-1), and the radius of any horizontal cross section of the water stirring portion (240) in an area close to the assembly portion (210-1) is greater than or equal to the radius of any horizontal cross section of the assembly portion (210-1).

7. The washing tub assembly of the washing equipment according to claim 6, characterized in that: The water stirring part (240) comprises: A support column (210) is provided extending upward along the axis from the upper end surface of the assembly portion (210-1); A water stirring rib (220) protrudes from the side wall of the support column (210) in a radial direction or obliquely to the radial direction and has a certain extension length in the axial direction; The lower end of the water stirring rib (220) is not lower than the upper end of the assembly portion (210-1), or the lower end of the water stirring rib (220) extends to the side wall of the assembly portion (210-1).

8. The washing tub assembly of the washing equipment according to claim 6, characterized in that: The water stirring portion (240) has a maximum horizontal cross-sectional radius at a certain height from the upper end of the assembly portion (210-1), and the certain height enables the clothes to be washed in an area below the horizontal cross-sectional area of ​​the water stirring portion (240) where the radius is the largest; The horizontal cross section with the largest radius is formed at the top or middle area of ​​the water stirring portion (240); or, along the axial direction of the washing tub (100), the water stirring portion (240) has a plurality of horizontal cross sections with the largest radius that are distributed at intervals.

9. The washing bucket assembly of a washing device according to any one of claims 1 to 5, characterized in that: The area of ​​the bottom (100-3) of the washing tub (100) extending outward from the mounting through hole to the wall of the washing tub (100) is a washing surface (100-31) capable of contacting clothes during washing; The horizontal plane where the mounting through hole is located is flush with the washing surface (100-31); or, the washing surface (100-31) has a convex surface on the periphery of the mounting through hole.

10. A washing device, characterized in that: A washing tub assembly comprising the washing equipment as claimed in any one of claims 1 to 9.

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