Washing machine

Abstract

The invention discloses a washing machine, which comprises a washing barrel used for accommodating washed clothes; the water stirring component is rotatably arranged in the washing barrel and has the maximum radius in the radial direction of the washing barrel at the position away from the inner surface of the bottom of the washing barrel by a certain distance; the driving device is in transmission connection with the washing barrel and the water stirring component and used for driving the washing barrel and the water stirring component to rotate simultaneously or alternately during washing and driving at least part of clothes to move in the area lower than the maximum radius of the water stirring component for washing. According to the washing machine, during washing, the washing barrel and the water stirring component are driven by the driving device to rotate at the same time, relative rotation exists between the washing barrel and the water stirring component, clothes can be driven to be washed below the position, with the maximum radius, of the water stirring component, and the problem that dirt is prone to being accumulated between the water stirring component and the barrel bottom can be solved; meanwhile, the relative acting force between the clothes and the water stirring component can be reduced, and then the motor energy consumption of the driving device for driving the water stirring component is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of washing equipment, and in particular relates to a washing machine. 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. The two are caused to rotate relative to each other, thereby driving the washing water and clothes in the inner barrel to move, and washing the clothes to be washed in the inner barrel. Existing pulsators are usually flat circular pulsators. 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] On the other hand, when the above-mentioned pulsator washing machine is washing, all the clothes are located above the pulsator and cover a large area on the surface of the pulsator. The friction between the pulsator and the clothes drives the clothes to move in the washing water, which increases the entanglement and wear of the clothes. At the same time, the friction between the clothes and the pulsator will also increase the energy consumption required by the drive motor to drive the pulsator to rotate.

[0005] 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.

[0006] A specific type of pulsator washing machine is a dual-power washing machine, which can drive the pulsator and the inner tub to rotate separately when working, thereby strengthening the impact of water flow and improving the washing effect of clothes. However, the dual-power washing method cannot solve the problem of dirt and grime hidden between the pulsator and the bottom of the tub.

[0007] In view of this, the present invention is proposed. Summary of the invention

[0008] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a washing machine which can prevent dirt from accumulating between the water stirring component and the bottom of the washing tub and reduce the operating energy consumption.

[0009] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0010] A washing machine, comprising:

[0011] A washing tub for containing laundry;

[0012] A water stirring member is rotatably disposed inside the washing tub and has a maximum radius along the radial direction of the washing tub at a certain distance from the inner surface of the bottom of the washing tub;

[0013] The driving device is respectively connected to the washing tub and the water stirring member, and is used to drive the washing tub and the water stirring member to rotate simultaneously or alternately during washing, so as to drive at least part of the clothes to move in an area below the maximum radius of the water stirring member for washing.

[0014] Further, the driving device is connected to the stirring shaft in a transmission manner, and a mounting portion is provided at the center of the bottom of the washing tub, and the stirring shaft rotatably passes through the mounting portion and is connected to the lower end of the water stirring member;

[0015] The area of ​​the barrel bottom extending outward from the mounting portion to the barrel wall of the washing barrel is the washing surface, and the vertical downward projection of the outer periphery of the water stirring member at the maximum radius directly falls on the washing surface.

[0016] Furthermore, the water stirring member comprises:

[0017] An assembly portion, disposed above the mounting portion, extending upward from the lower end of the water stirring member by a certain length;

[0018] A water stirring part connected to the upper end of the assembly part and having a certain height along the axial direction of the washing tub;

[0019] No pulsator is arranged between the assembling portion and the bottom of the washing tub.

[0020] Furthermore, the mounting portion is a mounting through hole opened at the center of the barrel bottom, the stirring shaft is rotatably inserted into the mounting through hole, and the diameter of the lower end of the assembly portion is equal to or substantially equal to the diameter of the mounting through hole.

[0021] Furthermore, the lower end surface of the assembling portion is spaced apart from the mounting portion, so that the clothes can contact the lower end surface of the assembling portion.

[0022] Further, the mounting portion includes a mounting groove arranged on the inner surface of the barrel bottom, and the assembly portion is at least partially inserted into the mounting groove;

[0023] A water seal structure is provided between the bottom surface of the installation groove and the lower end surface of the assembly portion; and / or a water seal structure is provided between the peripheral wall of the installation groove and the side wall of the assembly portion.

[0024] Furthermore, the water stirring part includes a support column and a water stirring rib; the support column is extended upward from the upper end of the assembly part, the water stirring rib protrudes radially or obliquely to the radial direction from the side wall of the support column, and the water stirring rib has a certain extension length along the axial direction.

[0025] Furthermore, the lower end surface of the assembly portion is not lower than the mounting portion, and the lower end of the water stirring rib extends to be flush with the lower end surface of the assembly portion;

[0026] Preferably, there is a gap between the lower end of the water stirring rib and the inner surface of the barrel bottom.

[0027] Further, the mounting portion includes a mounting groove arranged on the inner surface of the barrel bottom, and the assembly portion is at least partially inserted into the mounting groove; the lower end of the water stirring rib extends to be flush with the inner surface of the barrel bottom at the outer periphery of the mounting groove;

[0028] Preferably, there is a gap between the lower end of the water stirring rib and the inner surface of the barrel bottom at the periphery of the installation groove.

[0029] Furthermore, the driving device drives the washing tub and the water stirring member to rotate in opposite directions during washing, thereby driving the clothes to move for washing.

[0030] After adopting the above technical scheme, the present invention has the following beneficial effects compared with the prior art.

[0031] In the present invention, the maximum radius of the water stirring member in the washing tub is at a certain distance from the bottom of the tub. During washing, the driving device is used to drive the washing tub and the water stirring member to rotate relative to each other, which can drive the clothes to move below the maximum radius of the water stirring member for washing, so that the clothes can fully contact the outer surface of the water stirring member and the inner wall of the washing tub below the maximum radius, effectively avoiding the problem of dirt and grime easily accumulating between the water stirring member and the bottom of the tub and being difficult to clean, thereby improving the user experience. On the other hand, the clothes will not cover a large area above the water stirring member, reducing the resistance of the clothes to the rotation of the water stirring member, which is conducive to reducing the energy consumption of the motor of the driving device driving the water stirring member to rotate.

[0032] In the present invention, through the assembly structure between the assembly part of the water stirring member and the stirring shaft and / or the bottom of the barrel, the washing surface of the outer periphery of the barrel bottom mounting part is fully exposed in the washing space that can contact the clothes, so that there are almost no cleaning dead corners on the inner surface of the barrel bottom of the washing barrel where dirt is easily attached, thereby ensuring to the greatest extent that no lint and dirt remain on the inside of the washing barrel.

[0033] 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

[0034] 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:

[0035] Figure 1 It is a structural schematic diagram of a stirring washing machine in the prior art;

[0036] Figure 2 It is a structural schematic diagram of a washing machine in Embodiment 1 of the present invention;

[0037] Figure 3 Schematic diagram of a washing machine washing in an embodiment of the present invention Figure 1 ;

[0038] Figure 4 Schematic diagram of a washing machine washing in an embodiment of the present invention Figure 2 ;

[0039] Figure 5 is a schematic diagram of a cross section of a water stirring member in an embodiment of the present invention;

[0040] Figure 6 is a schematic diagram of the diameter of a water stirring member having a circular cross section in an embodiment of the present invention;

[0041] Figure 7 is a schematic diagram of determining the diameter of a water stirring member having an elliptical cross section in an embodiment of the present invention;

[0042] Figure 8 is a schematic diagram of determining the diameter of a water stirring member having a triangular cross section in an embodiment of the present invention;

[0043] Fig. 9 is a schematic diagram of determining the diameter of a water stirring member having a positive cross section in an embodiment of the present invention;

[0044] Fig.10 is a schematic diagram of determining the diameter of a water stirring member having a pentagonal cross section in an embodiment of the present invention;

[0045] Fig.11 is a schematic diagram of determining the diameter of a water stirring member having an irregular cross-section in an embodiment of the present invention;

[0046] Fig.12 is a schematic diagram of determining the diameter of a water stirring member having another irregular cross-section in an embodiment of the present invention;

[0047] Fig.13 is a schematic diagram of a water stirring member of another structure in Embodiment 1 of the present invention being applied in a washing machine;

[0048] Fig.14 is a schematic diagram of a water stirring member of another structure in Embodiment 1 of the present invention being applied in a washing machine;

[0049] Fig.15 is a schematic diagram of a water stirring member of another structure in Embodiment 1 of the present invention being applied in a washing machine;

[0050] Fig.16 is a schematic diagram of a water stirring member of another structure in Embodiment 1 of the present invention being applied in a washing machine;

[0051] Fig.17 is a schematic structural diagram of a washing machine in Embodiment 2 of the present invention;

[0052] Fig.18 It is a detailed structure of the assembly relationship between the assembly portion of the water stirring member and the stirring shaft and the bottom of the washing tub in the second embodiment of the present invention;

[0053] Fig.19 It is a detailed structure of the assembly relationship between the assembly portion of the water stirring member and the stirring shaft and the bottom of the washing tub in the second embodiment of the present invention;

[0054] Fig. 20 It is a detailed structure of the assembly relationship between the assembly portion of the water stirring member and the stirring shaft and the bottom of the washing tub in the second embodiment of the present invention;

[0055] Fig.21 It is a detailed structure of the assembly relationship between the assembly portion of the water stirring member and the stirring shaft and the bottom of the washing tub in the second embodiment of the present invention;

[0056] 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;

[0057] Fig.23 It is a detailed structure of the assembly relationship between the assembly portion of the water stirring member and the stirring shaft and the bottom of the washing tub in the second embodiment of the present invention;

[0058] Fig.24It is a structural schematic diagram of a washing machine in Embodiment 3 of the present invention;

[0059] Fig.25 is a structural schematic diagram of another washing machine in Embodiment 3 of the present invention;

[0060] Fig.26 is a cross-sectional view of the washing tub and the water stirring member after being assembled in the fourth to seventh embodiments of the present invention;

[0061] Fig. 27 The present invention Fig.26 The enlarged schematic diagram of point A in the middle;

[0062] Fig.28 is a schematic diagram of only the first water seal structure in the fourth embodiment of the present invention;

[0063] Fig.29 is a schematic diagram of only the second water seal structure in the fourth embodiment of the present invention;

[0064] Fig.30 It is a schematic diagram of the specific structure of the water stirring component in Embodiments 4 to 7 of the present invention.

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

[0066] 100, washing bucket; 100-1, mounting groove; 100-2, mounting portion; 100-21, mounting through hole; 100-3, bucket bottom; 100-31, washing surface; 110, dehydration shaft; 120, sealing structure; 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; 210-7, screw; 210-8, hollow column; 210-9, cavity; 2 10. Support column; 211. First extension section; 212. Second extension section; 213. First guide surface; 214. Second guide surface; 220. Water stirring ribs; 230. Water stirring plate; 231. Stirring part; 240. Water stirring part; 300. Stirring shaft; 301. Sealing pad; 302. Variable diameter end face; 310. Connecting part; 320. Shaft body; 500. Water seal structure; 501. First water seal structure; 502. Second water seal knot; Rmax, maximum radius; C. Clothing.

[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 30 As shown, an embodiment of the present invention provides a washing machine.

[0072] Specifically, the washing machine at least comprises a washing tub 100, a water stirring member 200 and a driving device. The washing tub 100 is used to accommodate the laundry C, and the water stirring member 200 is rotatably disposed inside the washing tub 100. The driving device is respectively connected to the washing tub 100 and the water stirring member 200, and is used to drive the washing tub 100 and the water stirring member 200 to rotate.

[0073] The washing machine may further include an outer tub, which may be connected to the washing tub 100, and the outer tub is used to hold water during washing. In another embodiment, the washing tub 100 may hold water independently during washing, and the outer tub is used to connect to a drainage pipeline for draining water to the outside, and is used to receive the washing water discharged from the washing tub 100 and then discharge it along the drainage pipeline.

[0074] More specifically, the output shaft of the driving device is respectively connected to the stirring shaft 310 and the dehydrating shaft 320. The stirring shaft 310 is connected to the water stirring member 200 and relatively fixed, and is used to drive the water stirring member 200 to rotate. The dehydrating shaft 320 is fixed to the bottom 100-3 of the washing tub 100, and is used to drive the washing tub 100 to rotate.

[0075] During washing, the driving device drives the stirring shaft 310 and the dehydrating shaft 320 to rotate simultaneously or alternately, and then drives the water stirring member 200 and the washing tub 100 to rotate simultaneously or alternately, and utilizes the relative rotation between the water stirring member 200 and the washing tub 100 to stir the clothes C and the washing water in the tub, thereby achieving a cleaning effect on the clothes C. During dehydration, the driving device drives the stirring shaft 310 and the dehydrating shaft 320 to rotate synchronously at a high speed, and then drives the water stirring member 200 and the washing tub 100 to rotate synchronously at a high speed, and utilizes the centrifugal force to spin dry the clothes C in the tub.

[0076] However, when the clothes C are washed, the lint and dirt are mixed into the washing water. If there is a narrow gap between the water stirring member 200 and the washing tub 100, the lint and dirt are easily hidden in the gap and are difficult to be taken out by the impact of the water flow during the washing process. Over time, the gap between the water stirring member 200 and the washing tub 100 will cause dirt to accumulate and bacteria to breed, causing secondary contamination of the clothes C.

[0077] Embodiment 1

[0078] like Figures 2 to 4 As shown, this embodiment provides a washing machine, which is used to solve the problem that there is a dead corner between the water stirring member 200 and the washing tub 100 where dirt and grime are hidden and difficult to clean.

[0079] Specifically, the washing machine described in this embodiment includes a washing tub 100, a water stirring member 200 and a driving device. The water stirring member 200 is rotatably arranged inside the washing tub 100, has a certain height along the axial direction of the washing tub 100, and has a maximum radius along the radial direction of the washing tub 100 at a certain distance from the inner surface of the bottom of the washing tub 100, and the certain distance enables the clothes C to be washed below the position where the maximum radius Rmax of the water stirring member 200 is located.

[0080] The driving device is transmission-connected to the washing tub 100 and the water-stirring member 200 respectively, and drives the washing tub 100 and the water-stirring member 200 to rotate simultaneously or alternately during washing, thereby driving the clothes C in the tub to move for washing.

[0081] More specifically, the driving device described in this embodiment drives the washing tub 100 and the water stirring member 200 through a deceleration clutch device. The deceleration clutch device includes a stirring shaft 310 connected to the water stirring member 200, and a dehydration shaft 320 connected to the washing tub 100. During washing, the deceleration clutch device performs a washing operation. Under the drive of the driving device, the stirring shaft 310 and the dehydration shaft 320 rotate simultaneously or alternately. In the case of simultaneous rotation, at least one of the rotation direction and the rotation speed is different, thereby driving the water stirring member 200 and the washing tub 100 to generate relative rotation for washing. During dehydration, the deceleration clutch device performs a dehydration operation. Under the drive of the driving device, the stirring shaft 310 and the dehydration shaft 320 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 for dehydration.

[0082] In the above scheme, the specific structure of the deceleration clutch device can adopt the structure of the deceleration clutch in the existing dual-power washing machine.

[0083] In this embodiment, the relative rotation between the washing tub 100 and the water stirring member 200 during the washing process can be used to drive the clothes C in the tub to move in an area below the maximum radius Rmax of the water stirring member 200 for washing. On the one hand, the clothes C can fully contact the outer surface of the water stirring member 200 and the inner wall of the washing tub 100 below the area of ​​the maximum radius Rmax, effectively avoiding the problem that dirt and grime are easily hidden between the water stirring member 200 and the bottom 100-3 of the tub and are difficult to clean, thereby improving the user experience. On the other hand, part or all of the clothes C are below the maximum radius Rmax of the water stirring member 200 during washing, and will not cover a large area above the water stirring member, which can significantly reduce the resistance of the clothes C to the rotation of the water stirring member 200, thereby helping to reduce the energy consumption of the motor of the driving device driving the water stirring member 200 to rotate.

[0084] As a specific implementation method, Figure 3 and Figure 4 As shown, during the washing process, the driving device drives the washing tub 100 and the water stirring member 200 to rotate in opposite directions for washing, wherein the solid arrow in the figure indicates the rotation direction of the water stirring member 200, and the dotted arrow indicates the rotation direction of the washing tub 100.

[0085] Specifically, during washing, the driving device drives the water stirring member 200 to rotate alternately forward and reversely, and at the same time drives the washing tub 100 and the water stirring member 200 to rotate alternately forward and reversely in the opposite direction. Figure 3 As shown, when the water stirring member 200 rotates clockwise, the washing tub 100 rotates counterclockwise; on the contrary, Figure 4 As shown, when the water agitating member 200 rotates counterclockwise, the washing tub 100 rotates clockwise.

[0086] In the above solution, when the washing tub 100 and the water stirring member 200 rotate in opposite directions, the rotation speeds of the two can be the same or different. In the preferred solution, the washing tub 100 and the water stirring member 200 rotate in opposite directions at different rotation speeds, wherein the rotation speed of the water stirring member 200 is greater than the rotation speed of the washing tub 100.

[0087] As another specific embodiment, during the washing process, the driving device drives the washing tub 100 and the water stirring member 200 to rotate in the same direction at different speeds for washing. For example, the speed of the washing tub 100 is less than the speed of the water stirring member 200. In this way, relative rotation can also be formed between the washing tub 100 and the water stirring member 200.

[0088] Similar to the previous embodiment, the washing tub 100 and the water stirring member 200 also rotate alternately in positive and negative directions during the washing process. That is, the washing tub 100 and the water stirring member 200 rotate clockwise at different speeds at the same time, and then rotate counterclockwise at the same time, in a reciprocating cycle.

[0089] As another specific embodiment, during the washing process, the driving device drives the washing tub 100 and the water stirring member 200 to rotate alternately, that is, when the water stirring member 200 is driven to rotate, the washing tub 100 remains stationary, and when the washing tub 100 is driven to rotate, the water stirring member 200 remains stationary. In this way, relative rotation can also be formed between the washing tub 100 and the water stirring member 200.

[0090] It should be noted that, in the embodiment of the present invention, the radius of the water stirring member 200 refers to the cross section of the water stirring member 200 taken along the horizontal direction (see Figure 5 ), the distance from the farthest point on the horizontal section to the center of rotation.

[0091] Specifically, if the cross section of the water stirring member 200 is Figure 6 If the cross section of the water stirring member 200 is Figures 7 to 12 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).

[0092] Accordingly, in this embodiment and subsequent embodiments, the "diameter" mentioned refers to twice the radius size mentioned above.

[0093] In a further solution of this embodiment, the stirring part 240 at the maximum radius Rmax is also at a certain distance from the barrel mouth of the washing barrel 100 in the height direction, so that the washing water level can be higher than the stirring part 240 at the maximum radius Rmax, so that the clothes C can be washed above the position of the stirring part 240 at the maximum radius Rmax.

[0094] 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.

[0095] In a further solution of this embodiment, the bottom 100-3 of the washing tub 100 has a mounting portion 100-2 located at the center, and the stirring shaft 300 rotatably passes through the mounting portion 200-1 and is connected to the lower end of the water stirring member 200. The area of ​​the bottom 100-3 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 the clothes during washing, and the vertical downward projection of the outer periphery of the maximum radius Rmax of the water stirring member 200 directly falls on the washing surface 100-31.

[0096] Furthermore, the agitating member 200 includes an assembly portion 210-1 and an agitating portion 240. The agitating shaft 300 is connected to the assembly portion 210-1 of the agitating member 200. During washing, the agitating member 200 and the washing tub 100 rotate relative to each other, and the agitating portion 240 is used to agitate the washing water and clothes C in the tub.

[0097] The assembly portion 210-1 is arranged above the mounting portion 100-2 of the barrel bottom 100-3, and is formed by extending the lower end of the water stirring member 200 upward by a certain length, and the radius of any horizontal cross section of the assembly portion 210-1 is smaller than the maximum radius of the water stirring member 200. The water stirring portion 240 is connected to the upper end of the assembly portion 210-1, and has a certain height along the axial direction of the washing barrel 100, so that the maximum radius Rmax of the water stirring member 200 is formed above the assembly portion 210-1. Preferably, the maximum radius Rmax of the water stirring member 200 is higher than the upper end of the assembly portion 210-1 by a certain height.

[0098] In the above scheme, a washing space is formed between the maximum radius Rmax of the water stirring member 200 and the bottom 100-3 of the barrel, and the washing space refers to the space area that the clothes can reach during the washing process. The assembly part 210-1 is arranged at the bottom of the water stirring member 200, and its radius size is smaller than the maximum radius of the water stirring member 200, which is conducive to exposing most of the area of ​​the bottom 100-3 of the barrel, that is, the washing surface 100-31, in the washing space. In this way, the washing surface 100-31 can contact with the clothes during the washing process to prevent dirt from adhering.

[0099] In the specific solution of this embodiment, the radius of the assembly part 210-1 along the radial direction of the washing tub 100 is less than or equal to the radius of any horizontal cross section of the water stirring part 240 near the assembly part 210-1. In other words, within a certain height range from the lower end of the water stirring member 200 upward, the assembly part 210-1 is the smallest radius section within the range.

[0100] In this embodiment, the radius of the assembly portion 210-1 is set to be small enough, and the radius is increased above the assembly portion 210-1, that is, in the area where the water stirring portion 240 is close to the assembly portion 210-1, which is equivalent to the water stirring member 200 being provided with a structure with a slightly larger radial size at a certain height away from the barrel bottom 100-3, while a impeller or a similar structure with a larger radial size is not provided between the assembly portion 210-1 and the barrel bottom 100-3 of the washing barrel 100.

[0101] In a specific scheme of this embodiment, the mounting portion 100-2 is a mounting through hole 100-21 opened at the center of the barrel bottom 100-3, the mounting through hole 100-21 passes through the upper and lower sides of the barrel bottom 100-3, the stirring shaft 300 is rotatably inserted into the mounting through hole 100-21, and the diameter of the lower end of the assembly portion 210-1 is equal to or substantially equal to the diameter of the mounting through hole 100-21.

[0102] With the above structure, the projection area formed by the lower end of the assembly portion 210-1 projecting onto the barrel bottom 100-3 of the washing barrel 100 substantially coincides with the installation through hole 100-21. The barrel bottom 100-3 located outside the installation through hole 100-21 is the washing surface 100-31, so that the washing surface 100-31 is completely exposed to the washing space, thereby preventing the problem of dirt accumulation on the inner surface of the barrel bottom 100-3 of the washing barrel 100 to the greatest extent.

[0103] As a specific implementation, 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 .

[0104] In detail, the assembly portion 210-1 is mounted on the upper end of the stirring shaft 300, and the diameter of the lower end of the assembly portion 210-1 is greater than or equal to the diameter of the stirring shaft 300. The aperture of the mounting through hole 100-21 is adapted to the diameter of the stirring shaft 300. Specifically, the aperture of the mounting through hole 100-21 is slightly larger than the diameter of the stirring shaft 300, and the side wall of the stirring shaft 300 does not contact the outer periphery of the mounting through hole 100-21, ensuring that the rotation of the stirring shaft 300 is not affected.

[0105] In a specific embodiment, the diameter of the lower end of the assembly part 210-1 is equal to the diameter of the installation through hole 100-21, so that the projection of the lower end of the assembly part 210-1 to the barrel bottom 100-3 completely overlaps with the installation through hole 100-21. At this time, the lower end of the assembly part 210-1 can be set to be flush with the inner surface of the barrel bottom 100-3, and the washing surface 100-31 around the installation through hole 100-21 can also be completely exposed to the washing space.

[0106] In another specific embodiment, the diameter of the lower end of the assembly part 210-1 is slightly larger than the diameter of the installation through hole 100-21. At this time, the projection of the lower end of the assembly part 210-1 to the barrel bottom 100-3 slightly exceeds the area of ​​the installation through hole 100-21. In order to avoid the problem of dirt and grime being hidden in the area of ​​the washing surface 100-31 covered by the projection area of ​​the lower end of the assembly part 210-1, the lower end surface of the assembly part 210-1 is spaced from the inner surface of the barrel bottom 100-3, so that the clothes can contact the lower end surface of the assembly part 210-1 and the area of ​​the washing surface 100-31 close to the installation part 100-2.

[0107] In another specific embodiment, the diameter of the lower end of the assembly part 210-1 is slightly smaller than the diameter of the installation through hole 100-21. In this case, the projection of the lower end of the assembly part 210-1 to the barrel bottom 100-3 is located within the range of the installation through hole 100-21. Similar to the first specific embodiment, the lowest end of the assembly part 210-1 can also be set to be flush with the inner surface of the barrel bottom 100-3. Since the projection area of ​​the lower end of the assembly part 210-1 does not overlap with the washing surface 100-31, it can be ensured that the washing surface 100-31 is completely exposed in the washing space.

[0108] In this embodiment, the washing machine can use a water level lower than the maximum radius Rmax of the water stirring member 200 during washing. The water stirring member 200 and the washing tub 100 rotate simultaneously in different directions and / or at different speeds under the action of the driving device, which can drive the clothes to move in the washing space below the maximum radius Rmax for washing.

[0109] Specifically, a specific movement path of the clothes in the washing space is a circular path, including: the clothes move along the bottom 100-3 of the barrel toward the mounting portion 100-2, rise along the side of the water stirring member 200 in the area close to the axis to a height close to the maximum radius Rmax or the washing water level, then move toward the periphery, and then fall back to the bottom 100-3 along the wall of the washing barrel 100 in the area close to the wall of the washing barrel 100.

[0110] In a further solution of this embodiment, the water stirring portion 240 includes a support column 210 extending axially from the upper end of the assembly portion 210-1, and a water stirring structure disposed on the side wall of the support column 210. Since a washing space is formed in the washing tub 100 in a region lower than the maximum radius Rmax of the water stirring member 200, 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 and extending in the axial direction. 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 forms an angle less than 90° with the radial direction of the washing tub 100. 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] More specifically, 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, thereby contacting 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.

[0113] Furthermore, the lower end of the water stirring rib 220 may extend to the position where the water stirring portion 240 is connected to the assembly portion 210-1, or may extend to the side wall of the assembly portion 210-1. However, it is understood that the lower end of the water stirring rib 220 extends at least to be flush with the lower end surface of the assembly portion 210-1.

[0114] In a preferred embodiment, there is a gap between the lower end of the water-stirring rib 220 and the inner surface of the barrel bottom 100 - 3 to prevent a narrow gap between the lower end of the water-stirring rib 220 and the barrel bottom 100 - 3 that can easily hide dirt.

[0115] In another preferred embodiment, when the lower end of the water stirring rib 220 is flush with the lower end surface of the assembly portion 210-1, the radial dimension of the water stirring rib 220 at the lower end is close to zero, and the peripheral edge of the water stirring rib 220 on the side away from the axis is extended upward from the outer periphery of the lower end surface of the assembly portion 210-1 toward the outer periphery. In this way, a certain angle is formed between the peripheral edge of the water stirring rib 220 and the inner surface of the barrel bottom 100-3, thereby ensuring that the area near the center of the barrel bottom 100-3 is exposed to the washing space, and will not be blocked by the water stirring rib 220 and have a dead corner where dirt and grime are hidden.

[0116] The water-stirring member 200 having the above-mentioned structure has a side surface including both the side wall of the support column 210 and the surface of the water-stirring rib 220 that is farthest from the rotation axis, and the radius of the water-stirring portion 240 is the distance between the farthest surface from the rotation axis on the water-stirring rib 220 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] In this embodiment, the maximum radius Rmax of the water stirring member 200 may be formed at the top or middle region of the water stirring portion 240. The water stirring member 200 may have a single maximum radius Rmax, or may have multiple maximum radius Rmax disposed at intervals.

[0120] As a specific implementation of this embodiment, Figure 2 ,as well as Figures 13 to 15 As shown, the water-stirring member 200 has a single maximum radius point Rmax in the height direction, and at least below the maximum radius point Rmax, the horizontal cross-sectional radius of the water-stirring portion 240 increases upward along the axis as the height increases.

[0121] In the first specific embodiment, if Fig.13 As shown, the maximum radius Rmax of the water-stirring member 200 is set at the top of the water-stirring portion 240, that is, the top surface of the water-stirring portion 240 is the horizontal cross-section of the water-stirring member 200 with the maximum radius.

[0122] In the second specific scheme, if Figure 2 As shown, the maximum radius Rmax of the water stirring member 200 is close to the top of the water stirring portion 240, but is at a certain distance from the top of the water stirring portion 240. Specifically, the upper side surface of the water stirring portion 240 at the 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.

[0123] 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 member 200 is formed at the upper 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.

[0124] In the third specific scheme, if Fig.14 and Fig.15 As shown, the maximum radius Rmax is located in the middle area of ​​the water stirring portion 240 along the height direction.

[0125] In a detailed scheme, Fig.14 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 to the top 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 until the top of the water stirring member 200 is formed.

[0126] In another detailed scheme, Fig.15 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 to the top, 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.

[0127] In the above scheme, Fig.14 and Fig.15 The outer contour of the water stirring member 200 is shown. Fig.15 Taking 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.

[0128] It should be understood that the above-mentioned structure is only used for illustration and is not intended to limit the present invention.

[0129] In this embodiment, when the water stirring member 200 has Figure 2 ,as well as Figures 13 to 15 In the structure shown, if the washing machine adopts a water level lower than the maximum radius Rmax for washing, a circular movement path of the clothes in the barrel is: the clothes move toward the central area along the barrel bottom 100-3, and then rise along the side of the water stirring member 200 to approach the barrel wall. When rising to a height close to the maximum radius Rmax or the washing water level, the clothes move toward the periphery and finally fall back to the bottom of the washing barrel 100 by falling along the barrel wall of the washing barrel 100.

[0130] for Fig.14 and Fig.15 In the structure shown, if the washing machine adopts a water level higher than the maximum radius Rmax and lower than the top of the water stirring member 200 for washing, one movement path of the clothes in the barrel is: the clothes move toward the central area along the barrel bottom 100-3, then rise along the side of the water stirring member 200 and gradually approach the barrel wall. After reaching the maximum radius Rmax, part of the clothes moves toward the periphery and finally falls along the barrel wall of the washing barrel 100 back to the bottom of the washing barrel 100. Some of the clothes can continue to rise along the side of the water stirring member 200 and gradually approach the axis. After rising to a height close to the washing water level, this part of the clothes moves toward the periphery again and finally falls along the barrel wall of the washing barrel 100 back to the bottom of the washing barrel 100.

[0131] As another specific implementation, Fig.16 As shown, the water stirring member 200 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 scheme, when the washing machine uses a water level lower than the top of the water-stirring component 200 for washing, a circular movement path of the clothes in the barrel is: the clothes move along the barrel bottom 100-3 toward the central area, and then rise along the side of the water-stirring component 200. During the rising process, they alternately approach the barrel wall and the axis, and the distance approaching the barrel wall each time is basically the same. When rising to a point close to the maximum radius Rmax or the washing water level, the clothes move toward the periphery and finally fall back to the bottom of the washing barrel 100 from the area close to the barrel wall of the washing barrel 100.

[0133] In this embodiment, the distance between the maximum radius Rmax of the water stirring member 200 and the upper end of the assembly portion 210-1 is greater than the extension length of the assembly portion 210-1 along the axial direction of the washing tub 100. Preferably, the distance between the maximum radius Rmax and the upper end of the assembly portion 210-1 is several to more than ten times the axial length of the assembly portion 210-1 along the washing tub 100. In this way, it is ensured that the washing space formed below the maximum radius Rmax is large enough.

[0134] 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.

[0135] 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.

[0136] 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.

[0137] 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.

[0138] In this embodiment, the outer 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 washing space below the maximum radius Rmax, the clothes can be driven to produce a movement trend of rising along the outer edge of the water stirring rib 220, and the clothes are guided to move toward the periphery after they rise with the water flow to near 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.

[0139] In addition, in this embodiment, when the washing machine adopts low water level for washing, the clothes will not rise above the water stirring plate 230, and thus will not have large-area contact and friction with the water stirring member 200. When washing at a high water level that covers the water stirring plate 230, since the diameter of the water stirring plate 230 is much smaller than the inner diameter of the washing tub 100, rather than the radial dimension of the impeller in the pulsator washing machine being close to the tub diameter, even if some clothes are covered on the upper side of the water stirring plate 230, the contact area between the clothes and the water stirring member 200 is greatly reduced compared with the contact area between the clothes and the impeller in the pulsator washing machine, and does not affect the effect of reducing clothes entanglement, reducing clothes wear, and reducing the energy consumption of the motor of the driving device in this embodiment.

[0140] In this embodiment, a water stirring member 200 is installed in the washing barrel 100, and the water stirring member 200 and the washing barrel 100 are at a certain distance from the maximum radius Rmax. During washing, the driving device 200 drives the water stirring member 200 and the washing barrel 100 to rotate simultaneously, and the rotation directions and / or rotation speeds of the two are different, thereby generating relative rotation, which can drive the clothes to move in the washing space below the maximum radius Rmax for washing. The assembly part 210-1 on the water stirring member 200 close to the barrel bottom 100-3 has a smaller radius size, so that the disc-shaped water stirring part of the water stirring member 200 without a bottom will not cover the barrel bottom 100-3, and the washing surface 100-31 of the barrel bottom 100-3 can be fully exposed to the washing space, thereby avoiding the problem of dirt and grime between the water stirring member 200 and the barrel bottom 100-3.

[0141] On the other hand, when washing, the washing machine of this embodiment will not have the situation that all the clothes are covered on the water stirring member 200, which reduces the friction of the water stirring member 200 on the clothes, can reduce the entanglement of clothes, and reduce the wear of clothes. Correspondingly, the rotation resistance of the clothes to the water stirring member 200 is also reduced, which can reduce the energy consumption of the motor of the driving device during washing.

[0142] Embodiment 2

[0143] like Figures 17 to 23As shown, this embodiment further provides a washing machine based on the above-mentioned embodiment 1, wherein the assembly part 210-1 of the water stirring member 200 is mounted on the upper end of the stirring shaft 300, and the outer diameter of the lower end of the assembly part 210-1 is equal to or substantially equal to the diameter of the stirring shaft 300.

[0144] The outer diameter of the lower end of the above-mentioned assembly part 210-1 is equal to or substantially equal to the diameter of the stirring shaft 300, which means that the outer diameter of the lower end of the assembly part 210-1 is equal to or slightly larger than the diameter of the stirring shaft 300, so that 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. In this way, there is no lower end surface located at the outer periphery of the stirring shaft 300 at the lower end of the assembly part 210-1 of the water stirring member 200, or the lower end surface area located at the outer periphery of the stirring shaft 300 at the lower end of the assembly part 210-1 is very small.

[0145] In this embodiment, 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 assembly part 210-1 can be sufficiently close to the barrel bottom 100-3, for example, the water stirring member 200 is set so that the lower end of the assembly part 210-1 is flush with the inner surface of the barrel bottom 100-3. When the lower end of the assembly part 210-1 does not have a lower end surface located at the periphery of the stirring shaft 300, a gap structure located between the lower end of the assembly part 210-1 and the barrel bottom 100-3 will not be formed, and thus there will be no problem of dirt and grime. Even if the lower end of the assembly part 210-1 is located at the periphery of the stirring shaft 300, it still has a very small lower end surface. 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.

[0146] 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.

[0147] 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.

[0148] 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.

[0149] In a preferred solution of this embodiment, at the lower end of the mounting portion 210 - 1 , a smooth transition is formed between the side wall of the mounting portion 210 - 1 and the side wall of the stirring shaft 300 as the height changes.

[0150] 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.

[0151] In a specific solution of this embodiment, Fig.18 and Fig.19 As shown, 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.

[0152] 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.

[0153] 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.

[0154] In a specific embodiment, combining Fig.18 and Fig.19As 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.

[0155] 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.

[0156] 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.

[0157] In another specific embodiment, the plug-in portion can be configured such that the diameter gradually decreases from the lower end upward, and the inner diameter of the assembly portion also gradually decreases as the height increases, thereby matching the structure of the plug-in portion. When the stirring shaft adopts the above structure, the wall thickness of the assembly portion 210-1 also increases as the height increases, but the outer diameter of the assembly portion can increase as the height increases, or the outer diameter of the assembly portion can remain consistent with the change in height.

[0158] In one detailed embodiment, the Fig.18 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 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 bottom 100-3 of the washing tub 100 is completely exposed to the washing water during washing, and the clothes can contact the bottom 100-3 at all places, especially the area around the mounting portion 100-2, avoiding the bottom 100-3 of the tub from having cleaning dead corners that are easy to hide dirt.

[0159] In another detailed scheme, combined with Fig.19As 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 specific structure, the washing surface 100-31 extends downwardly from the periphery of the mounting portion 100-2 at an angle for a distance, and then extends horizontally to the barrel wall of the washing barrel 100. In another specific structure, the washing surface 100-31 first extends horizontally from the periphery of the mounting portion 100-2, then extends downwardly at an angle for a distance, and then extends horizontally to the barrel wall of the washing barrel 100.

[0160] 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.

[0161] In another specific implementation of this embodiment, Figure 20 to Figure 23 As shown, the assembly portion 210-1 of 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 of the assembly portion 210-1 of the water-stirring member does not exceed the side wall of the stirring shaft 300 in the radial direction.

[0162] Specifically, in the above scheme, 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 reduced 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 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 reduced diameter end face 302.

[0163] By adopting the above-mentioned assembly structure, after the water stirring member 200 and the stirring shaft 300 are assembled, the lower end surface 210-11 of the assembly part 210-1 is completely blocked by the variable diameter end surface 302 formed at the connection between the plug-in part 310 on the stirring shaft 300 and the shaft body 320. Therefore, there is no end surface 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 assembly part 210-1 and the bottom 100-3.

[0164] In one detailed embodiment, the Fig. 20As 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.

[0165] In another detailed scheme, combined with Fig.21 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.

[0166] 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.

[0167] Furthermore, in Fig. 20 and Fig.21 In the detailed structure 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.

[0168] In another detailed scheme, Fig. 22 As 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.

[0169] In another detailed solution of this embodiment, different from Fig. 20 and Fig.21 The diameter of the plug-in portion 310 shown in the figure is kept consistent in the axial direction. Fig.23As 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 hollow structure inside the assembly portion 210-1 matches the truncated cone structure of the plug-in portion 310.

[0170] Furthermore, in the above solution, the bottom 100 - 3 of the washing tub 100 may also adopt the following two different structures.

[0171] Specifically, in a detailed structure, such as Fig. 20 As shown, the inner surface of the barrel bottom 100-3 of the washing barrel 100 extends horizontally outward from the mounting portion 100-2 at the center. During washing, the clothes can contact various parts of the barrel bottom 100-3, especially the area around the mounting portion 100-2.

[0172] In another detailed structure, such as Fig.21 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. Specifically, the washing surface 100-31 extends downwardly from the periphery of the mounting portion 100-2 at an angle for a distance, and then extends horizontally to the barrel wall of the washing tub 100. Alternatively, the washing surface 100-31 first extends horizontally from the periphery of the mounting portion 100-2, 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.

[0173] In this embodiment, through the structural coordination between the assembly portion 210-1 of the water-stirring member 200 and the stirring shaft 300, there is basically no lower end surface at the bottom of the water-stirring member 200 that extends from the side wall of the stirring shaft 300 to the periphery and is opposite to the inner surface of the bottom 100-3 of the washing barrel 100. In this way, the effect of preventing dirt and grime from accumulating between the lower end surface of the assembly portion 210-1 and the bottom 100-3 of the washing barrel 100 is achieved.

[0174] Embodiment 3

[0175] like Fig.24 and Fig.25 As shown, this embodiment is a further limitation of the above-mentioned embodiment 1, and the lower end surface of the assembly part 210-1 has a certain distance from the inner surface of the barrel bottom 100-3, and the certain distance enables the clothes to contact the lower end surface 210-11 of the assembly part 210-1.

[0176] Compared with the previous embodiment, the present embodiment improves the installation height of the water stirring member 200 in the washing tub 100. By setting a sufficient spacing distance between the lower end surface 210-11 of the assembly portion 210-1 and the inner surface of the bottom 100-3 of the washing tub 100, the lower end surface 210-11 of the assembly portion 210-1 can be exposed in the washing space that can contact the clothes during washing, and then the contact between the clothes and the assembly portion 210-1 during the washing process can prevent the attachment of lint and dirt to the lower end surface 210-11 of the assembly portion 210-1.

[0177] At the same time, the outer diameter of the lower end of the assembly part 210-1 can be set to be significantly larger than the aperture of the installation through hole 100-21, so that the downward projection of the lower end surface 210-11 of the assembly part 210-1 has a larger overlap area with the washing surface 100-31. During washing, the area covered by the above projection near the center of the washing surface 100-31 can also contact the clothes, thereby avoiding the problem of dirt and grime between the water stirring member 200 and the inner surface of the barrel bottom 100-3.

[0178] In a further solution of this embodiment, after the water stirring member 200 and the stirring shaft 300 are assembled in place, the assembly portion 210-1 is located directly above the mounting portion 100-2, and the lower end surface 210-11 of the water stirring member 200 is arranged opposite to the mounting portion 100-2 of the barrel bottom 100-3. The aforementioned lower end surface 210-11 of the assembly portion 210-1 and the inner surface of the barrel bottom 100-3 have a certain distance, that is, the distance between the lower end surface 210-11 of the assembly portion 210-1 and the mounting portion 100-2. This distance allows the clothes to contact the area of ​​the lower end surface 210-11 of the assembly portion 210-1 close to the stirring shaft 300.

[0179] In the above scheme, the washing space formed by the area below the maximum radius Rmax of the water stirring member 200 can be further divided into a first washing space and a second washing space. The first washing space is formed between the lower end surface 210-11 of the assembly part 210-1 and the bottom 100-3 of the washing tub 100, and the second washing space is formed between the maximum radius Rmax and the lower end of the assembly part 210-1.

[0180] By reserving a sufficient spacing distance between the lower end surface 210-11 of the assembly part 210-1 and the installation part 100-2, the clothes in the first washing space can move toward the central area to the side wall of the stirring shaft 300 during washing, so that the lower end surface 210-11 of the assembly part 210-1 can contact the clothes at all places, avoiding the existence of cleaning dead corners that cannot contact the clothes and easily accumulate dirt.

[0181] In this embodiment, the downward projection of the lower end surface 210-11 of the assembly portion 210-1 directly falls on the mounting portion 100-2 or the washing surface 100-31 of the barrel bottom 100-3. In other words, there is no obstruction in the process of the lower end surface 210-11 of the water stirring member 200 being projected downward to the inner surface of the barrel bottom 100-3 of the washing barrel 100. Specifically, between the lower end surface 210-11 of the water stirring member 200 and the inner surface of the barrel bottom 100-3, the side wall of the stirring shaft 300 is directly opposite to the barrel wall of the washing barrel 100, and no impeller or other structures with a larger size extending radially along the washing barrel 100 are arranged thereon.

[0182] With the above structure, the washing surface 100-31 of the barrel bottom 100-3 is completely exposed to the washing water during washing, and the clothes in the first washing space can move along the washing surface 100-31, for example, along the washing surface 100-31 toward the central area to the side wall of the stirring shaft 300. In this way, the clothes can contact various parts of the barrel bottom 100-3, especially the area around the mounting portion 100-2, avoiding the existence of cleaning dead corners in the barrel bottom 100-3 that are easy to hide dirt.

[0183] As a specific implementation of this embodiment, Fig.24 As shown, the mounting portion 100-2 is flush with the washing surface 100-31, that is, the inner surface of the barrel bottom 100-3 is a flat structure as a whole. When washing, the clothes in the barrel are more easily moved along the washing surface 100-31 in the first washing space driven by the water flow, and gathered from the outer circumference to the stirring shaft 300.

[0184] As another specific implementation of this embodiment, Fig.25 As shown, the washing surface 100-31 protrudes from the peripheral area of ​​the washing surface 100-31 in the area close to the mounting portion 100-2, and a protruding surface is formed on the periphery of the mounting portion 100-2. In one detailed structure, the washing surface 100-31 extends downwardly from the periphery of the mounting portion 100-2 by 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 for a short distance from the periphery of the mounting portion 100-2, then extends downwardly by an angle for a distance, and then extends horizontally to the barrel wall of the washing tub 100.

[0185] By adopting the above structure, an angle greater than 90° can be formed between the inner surface of the barrel bottom 100-3 and the side wall of the stirring shaft 300 on the periphery of the stirring shaft 300, making it easier to fully expose the area of ​​the washing surface 100-31 close to the mounting portion 100-2 and the area of ​​the side wall of the stirring shaft 300 close to the barrel bottom 100-3, thereby making it more conducive for the above-mentioned areas to contact with clothes and prevent the adhesion and accumulation of dirt.

[0186] As a preferred solution of this embodiment, the surface or partial surface of the stirring shaft 300, especially the side wall of the stirring shaft 300, is covered with an antibacterial layer, and the coverage range of the antibacterial layer at least includes the area of ​​the side wall of the stirring shaft 300 between the lower end of the assembly part 210-1 and the inner surface of the barrel bottom 100-3.

[0187] In the above solution, the side wall of the stirring shaft 300 is covered with an antibacterial layer at least in the area directly exposed to the first washing space. The antibacterial layer can be formed by coating with an existing antibacterial coating, or by coating the side wall of the stirring shaft 300 with an antibacterial material, such as a flexible sheet made of an antibacterial material. In this way, even if a small amount of dirt remains on the side wall of the stirring shaft 300, the antibacterial layer can prevent bacteria from growing there, thereby avoiding secondary contamination of the clothes.

[0188] In this embodiment, during washing, the driving device drives the water stirring member 200 and the washing tub 100 to rotate simultaneously in different directions and / or at different speeds, which can drive the clothes to move in the first washing space and the second washing space in the tub for washing. Specifically, when the washing machine of this embodiment uses a water level lower than the maximum radius Rmax for washing, one movement path of the clothes is the following circular path.

[0189] During washing, the clothes in the first washing space move along the bottom 100-3 toward the central area to the side wall of the stirring shaft 300, rise along the side wall of the stirring shaft 300 to the lower end surface 210-11 of the assembly part 210-1, move toward the periphery along the lower end surface 210-11 of the assembly part 210-1, and continue to rise along the side of the water stirring member 200 to enter the second washing space. When continuing to rise to the maximum radius Rmax or the height of the washing water level, the clothes move toward the periphery and finally fall from the area close to the wall of the washing barrel 100 back to the bottom of the washing barrel 100. In this way, the clothes move around the water stirring member 200 along an outwardly turned circular path for washing, which can prevent the clothes from being entangled.

[0190] In this embodiment, similar to the first embodiment, the maximum radius Rmax of the agitating member 200 can be formed at the top or middle region of the agitating portion 240. The agitating member 200 can have a single maximum radius Rmax, or multiple maximum radius Rmax can be arranged at intervals.

[0191] It can be understood that since the lower end surface 210-11 of the assembly part 210-1 is spaced apart from the inner surface of the barrel bottom 100-3 in this embodiment, the maximum radius of the water-stirring member can also be set at the bottom end of the water-stirring part. Above the maximum radius, the horizontal cross-sectional radius of the water-stirring part decreases with increasing height.

[0192] In a further solution of this embodiment, the maximum radius Rmax of the water stirring member 200 is higher than the bottom end of the water stirring portion 240. As a specific implementation, Fig.24 As shown, the assembly portion 210-1 forms the minimum radius section of the stirring member 200 below the maximum radius Rmax area. Specifically, between the bottom end of the stirring portion 240 and the maximum radius Rmax, the radius of any horizontal cross section of the stirring portion 240 is greater than or equal to the radius of the assembly portion 210-1.

[0193] In the above solution, the second washing space has a maximum radial dimension at the outer periphery of the assembly portion 210-1, and the area of ​​the lower end surface 210-11 of the assembly portion 210-1 is small, so that the clothes are more likely to fully contact with the lower end surface 210-11 of the assembly portion 210-1. At the same time, the clothes in the first washing space that rise along the side wall of the stirring shaft 300 with the water flow are more likely to pass over the lower end surface 210-11 of the assembly portion 210-1 and enter the second washing space.

[0194] When the water stirring member 200 of the washing machine described in this embodiment has the above-mentioned structure, washing is performed at a water level lower than the maximum radius Rmax. A specific movement path of the clothes is as follows: the clothes move along the bottom 100-3 of the barrel toward the central area to the side wall of the stirring shaft 300, rise along the side wall of the stirring shaft 300 to the lower end surface 210-11 of the assembly part 210-1, move toward the periphery along the lower end surface 210-11 of the assembly part 210-1, and then continue to rise along the side of the water stirring member 200 and approach the barrel wall. When rising to a height close to the maximum radius Rmax or the washing water level, the clothes move toward the periphery and finally fall along the barrel wall of the washing barrel 100 back to the bottom of the washing barrel 100.

[0195] As another specific implementation, Fig.25 As shown, the water stirring portion 240 has a horizontal cross section whose radius is smaller than the radius of the assembly portion 210-1 between its bottom end and the maximum radius Rmax of the water stirring member 20. Specifically, between the bottom end of the water stirring portion 240 and the maximum radius Rmax, the radius of the horizontal cross section of the water stirring portion 240 at least within a certain height range is smaller than the maximum radius of the assembly portion 210-1.

[0196] In a more specific solution, the radius of the assembly portion 210-1 gradually increases with increasing height, thereby forming a smooth rounded transition between the lower end surface 210-11 of the assembly portion 210-1 and the side wall, so that the clothes in the first washing space below the lower end surface 210-11 of the assembly portion 210-1 can be more easily raised to the second washing space.

[0197] Furthermore, the horizontal cross-sectional radius of the water stirring portion 240 gradually decreases upward from the bottom end connected to the assembly portion 210 - 1 until a horizontal cross-sectional radius of the minimum is formed, and then gradually increases with increasing height until the maximum radius Rmax of the water stirring member 200 is formed.

[0198] It is understandable that the horizontal cross section with the smallest radius refers to the horizontal cross section with the smallest radius located below the maximum radius Rmax. For a solution in which the maximum radius Rmax is not disposed at the top of the water stirring portion 240, the water stirring portion 240 may also have a horizontal cross section with a smaller radius above the maximum radius Rmax.

[0199] In a detailed structure, the above-mentioned variation trend of the horizontal cross-sectional radius of the water stirring portion 240 is formed by the water stirring rib 220. Specifically, the diameter of the support column 210 along the axial direction remains consistent, the water stirring rib 220 is arranged on the side wall of the support column 210, and the radial dimension of the water stirring rib 220 first decreases and then increases with the increase of the height, so that within a certain height range, the radius of the water stirring portion 240 is smaller than the radius of the assembly portion 210-1.

[0200] When the water stirring member 200 has the above structure, the barrel bottom 100-3 preferably has a raised surface on the periphery of the mounting portion 100-2, so that the area of ​​the washing surface 100-31 close to the mounting portion 100-2 is raised from the peripheral area. Since the assembly portion 210-1 has a larger radius, the area of ​​the lower end surface 210-11 of the assembly portion 210-1 is larger. By setting the barrel bottom 100-3 as a structure in which the central area is raised relative to the peripheral area, it is easier for clothes to enter the interval area between the lower end surface 210-11 of the assembly portion 210-1 and the inner surface of the barrel bottom 100-3, ensuring that the clothes can contact the lower end surface 210-11 of the assembly portion 210-1, especially the area close to the center of the lower end surface 210-11 of the assembly portion 210-1.

[0201] It is understandable that for the water stirring member 200 of the above structure, the barrel bottom 100-3 may also be Fig.24 However, compared with the structure in which the central area of ​​the barrel bottom 100-3 is convex, when the barrel bottom 100-3 is set as an overall planar structure, the spacing distance between the lower end surface 210-11 of the assembly part 210-1 and the installation part 100-2 needs to be set larger.

[0202] When the water stirring member 200 of the washing machine of the present embodiment has the above structure, washing is performed at a water level lower than the maximum radius Rmax, and a specific movement path of the clothes is as follows: the clothes move along the washing surface 100-31 of the barrel bottom 100-3 toward the center to the side wall of the stirring shaft 300, and then move upward along the side wall of the stirring shaft 300 to the lower end surface 210-11 of the assembly part 210-1; the clothes here move toward the periphery along the lower end surface 210-11 of the assembly part 210-1, and when they move beyond the assembly part 210-1, the clothes move to the outer periphery. After the clothes cover the range of the lower end surface 210-11 of the water-stirring member 200, they continue to rise along the side of the water-stirring member 200; during the rising process of the clothes, after exceeding the top of the assembly part 210-1, they have a movement tendency toward the central axis, and then after moving obliquely upward toward the central axis for a certain distance, they continue to rise obliquely toward the peripheral direction; the clothes can rise to below the maximum radius Rmax of the water-stirring member 200 or the height of the washing water level, and then move toward the periphery, and finally fall along the barrel wall of the washing barrel 100 to the barrel bottom 100-3.

[0203] In the above scheme, the assembly part 210-1 of the water stirring member 200 is no longer the minimum radius section of the water stirring member 200 below the maximum radius Rmax area, but at a certain height above the assembly part 210-1, the water stirring part 240 first forms a minimum radius, and then continues upward to form the maximum radius Rmax. The radius size of the part of the water stirring member 200 close to the barrel bottom 100-3 is increased, which can strengthen the stirring force of the washing water in the bottom area of ​​the washing barrel 100, enhance the water flow intensity in the first washing space, and then better flush the lower end surface 210-11 of the water stirring member 200 and the inner surface of the barrel bottom 100-3 to prevent dirt from adhering.

[0204] In this embodiment, by setting a sufficient spacing distance between the lower end surface 210-11 of the assembly part 210-1 and the inner surface of the barrel bottom 100-3 of the washing barrel 100, the lower end surface 210-11 of the assembly part 210-1 can be exposed to a space capable of contacting the laundry to be washed. In this way, during washing, the laundry can be in contact with the lower end surface 210-11 of the assembly part 210-1, which can effectively prevent dirt from adhering, thereby avoiding the existence of a space for dirt to accumulate between the bottom of the water stirring member 200 and the inner surface of the barrel bottom 100-3.

[0205] Embodiment 4

[0206] like Figures 26 to 30 As shown, the difference between this embodiment and the above-mentioned embodiment 1 is that the installation portion 100-2 includes a mounting groove 100-1 arranged on the inner surface of the barrel bottom 100-3, the assembly portion 210-1 of the water stirring member 200 is at least partially inserted into the mounting groove 100-1, and a water seal structure 500 is arranged between the inner wall of the mounting groove 100-1 and the outer surface of the assembly portion 210-1.

[0207] Specifically, in this embodiment, a mounting through hole 100-21 is provided at the center of the bottom surface of the mounting groove 100-1 to cooperate with the stirring shaft 300, and the stirring shaft 300 can rotatably pass through the mounting through hole 100-21 and be plugged and fixed with the assembly portion 210-1 of the water stirring member 200. By providing a water seal structure 500, the washing water is prevented from penetrating into the gap between the mounting groove 100-1 and the assembly portion 210-1 without affecting the relative rotational cooperation between the assembly portion 210-1 and the mounting groove 100-1, thereby preventing the wire scraps or other dirt in the washing water from remaining in the mounting groove 100-1, and effectively avoiding the problem of dirt and dirt hiding between the water stirring member 200 and the bottom 100-3 of the barrel.

[0208] In the specific scheme of this embodiment, the assembly part 210-1 forms the minimum radius section of the water-stirring member 200 below the maximum radius Rmax, and the assembly part 210-1 can be rotatably inserted in the installation groove 100-1, and the upper end of the assembly part 210-1 is not lower than the inner surface of the barrel bottom 100-3 of the outer periphery of the installation groove 100-1.

[0209] As a specific implementation method, Fig.28 As shown, the water seal structure 500 includes an annular first water seal structure 501, which is arranged between the bottom surface of the installation groove 100-1 and the lower end surface of the assembly part 210-1. Specifically, the lower end surface of the first water seal structure 501 is fixed on the bottom surface of the installation groove 100-1, and the upper end surface of the first water seal structure 501 is elastically abutted against the lower end surface of the assembly part 210-1. Preferably, the outer periphery of the first water seal structure 501 is in contact with the groove peripheral wall of the installation groove 100-1.

[0210] More specifically, the upper end surface of the first water seal structure 501 is configured to be sawtooth-shaped, and the upper end surface of the first water seal structure 501 includes a plurality of sawteeth continuously arranged along the radial direction.

[0211] As another specific implementation, Fig.29 As shown, the water seal structure 500 includes an annular second water seal structure 502, which is arranged between the groove peripheral wall of the installation groove 100-1 and the side wall of the assembly part 210-1. Specifically, the outer peripheral surface of the second water seal structure 502 is connected to the groove peripheral wall of the installation groove 100-1, and the inner peripheral surface of the second water seal structure 502 is elastically abutted against the side wall of the assembly part 210-1.

[0212] More specifically, the lower portion of the assembly portion 210-1 is inserted into the mounting groove 100-1, and there are gaps between the lower area of ​​the side wall of the assembly portion 210-1 and the peripheral wall of the mounting groove 100-1, and between the lower end surface of the assembly portion 210-1 and the bottom surface of the mounting groove 100-1. The second water seal structure 502 is at least arranged between the notch of the mounting groove 100-1 and the side wall of the assembly portion 210-1.

[0213] In the above scheme, the second water seal structure 502 is set in an annular shape and is arranged around the lower part of the assembly part 210-1. The second water seal structure 502 can be set only at the notch of the installation groove 100-1, or it can be set in the entire installation groove 100-1. The outer peripheral surface of the second water seal structure 502 is connected to the groove wall of the installation groove 100-1, and the inner peripheral surface of the second water seal structure 502 is elastically abutted against the lower area of ​​the side wall of the assembly part 210-1 through a serrated surface, and the serrated surface includes a plurality of serrations arranged continuously along the axial direction.

[0214] In some possible specific structures, the second water seal structure 502 extends along the axial direction of the installation groove 100-1, and its lower end surface is in contact with the groove bottom of the installation groove 100-1, and its upper end surface is substantially flush with the inner surface of the barrel bottom 100-3. A sealant is provided between the outer peripheral surface of the second water seal structure 502 and the groove wall of the installation groove 100-1, and / or a sealant is provided between the lower end surface of the second water seal structure 502 and the groove bottom surface of the installation groove 100-1.

[0215] Preferably, in some possible specific structures, the lower end of the second water seal structure 502 extends radially toward the central area, and the inner circumference of the second water seal structure 502 at least partially extends between the lower end surface of the assembly part 210-1 and the bottom surface of the installation groove 100-1, so as to further enhance the sealing effect of the gap between the assembly part 210-1 and the barrel bottom 100-3.

[0216] In a further solution, an embedding groove is coaxially arranged at the groove opening of the installation groove 100-1, the diameter of the embedding groove is larger than the diameter of the installation groove 100-1, and the second water seal structure 502 is arranged in the embedding groove, and its lower end surface is in contact with the groove bottom of the embedding groove, and the upper end surface is substantially flush with the inner surface of the barrel bottom 100-3. Preferably, the outer diameter of the second water seal structure 502 is greater than or equal to the inner diameter of the embedding groove, and the inner circumference of the second water seal structure 502 is elastically abutted against the lower area of ​​the side wall of the assembly portion 210-1.

[0217] The "basically flush" mentioned above can mean that the upper end surface of the second water seal structure 502 is flush with the inner surface of the barrel bottom 100-3, or that the upper end surface of the second water seal structure 502 protrudes from the inner surface of the barrel bottom 100-3, or that the upper end surface of the second water seal structure 502 is slightly lower than the inner surface of the barrel bottom 100-3.

[0218] In this embodiment, as a specific implementation method, Fig.28 and Fig.29 As shown, the first water seal structure 501 and the second water seal structure 502 can be provided separately. As another specific implementation, Fig. 27 As shown, the first water seal structure 501 and the second water seal structure 502 can also be provided at the same time.

[0219] In a further solution of this embodiment, the inner surface of the barrel bottom 100-3 is provided with an extension wall surrounding the assembly portion 210-1 of the water stirring member 200 and protruding upward, and the inner periphery of the extension wall is coplanar with the groove peripheral wall of the installation groove 100-1.

[0220] Preferably, for a structure in which the first water seal structure 501 is provided alone, the inner periphery of the extension wall is coplanar with the groove peripheral wall of the installation groove 100-1. For a structure in which the second water seal structure 502 is provided, the extension wall is provided around the embedded groove and extends along the axial direction of the washing bucket 100, and the inner periphery of the extension wall is coplanar with the groove peripheral wall of the embedded groove. More specifically, the lower end of the second water seal structure 502 is in contact with the groove bottom of the embedded groove, the upper end surface of the second water seal structure 502 is substantially flush with the upper end surface of the extension wall 100-2, the outer periphery of the second water seal structure 502 is bonded to the groove wall of the embedded groove, and / or the lower end surface of the second water seal structure 502 is bonded to the groove bottom of the embedded groove.

[0221] In this embodiment, the lower end of the water stirring rib 220 can extend to the position where the water stirring portion 240 is connected to the assembly portion 210-1, or can extend to the side wall of the assembly portion 210-1. However, it can be understood that since the assembly portion 210-1 is inserted into the mounting groove 100-1 of the barrel bottom 100-3, the lower end of the water stirring rib 220 extends to the lowest point to be flush with the inner surface of the barrel bottom 100-3 at the periphery of the mounting groove 100-1.

[0222] For the solution in which the barrel bottom 100 - 3 is provided with an upwardly protruding extension wall, the lower end of the water-stirring rib 220 extends to a point flush with the upper end surface of the extension wall.

[0223] Preferably, the lower end of the water-stirring rib 220 is spaced from the inner surface of the barrel bottom 100-3 to avoid a narrow gap between the lower end of the water-stirring rib 220 and the barrel bottom 100-3 that is easy to hide dirt. Alternatively, when the lower end of the water-stirring rib 220 is flush with the inner surface of the barrel bottom 100-3, the radial dimension of the water-stirring rib 220 at the lower end is close to zero, and the outer peripheral edge of the water-stirring rib 220 on the side away from the axis is extended upward from the lower end toward the outer periphery.

[0224] In this embodiment, a mounting groove 100-1 is provided on the bottom 100-3 of the washing tub 100, which is used to be plugged and matched with the assembly portion 210-1 of the water stirring member 200. The water stirring member 200 and the washing tub 100 are directly mounted and matched, and the relative rotation of the two is more stable when the washing machine is working. By providing a water seal structure 500, the washing water can be prevented from entering the mounting groove 100-1 without affecting the relative rotation of the water stirring member 200 and the washing tub 100, thereby avoiding the problem of dirt and grime between the water stirring member 200 and the washing tub 100, especially inside the mounting groove 100-1.

[0225] Embodiment 5

[0226] like Figures 26 to 30 As shown, this embodiment provides a specific structure of a water stirring member 200 based on the above-mentioned fourth embodiment.

[0227] Specifically, in this embodiment, the maximum radius Rmax of the water stirring member 200 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 remains constant or gradually increases with increasing height, thereby forming a guiding surface for guiding the movement of clothes during washing.

[0228] As a specific 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, and 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.

[0229] In the above scheme, 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 extended upward along a curve with a larger curvature and gradually approaching or moving away from the barrel wall of the washing barrel 100.

[0230] 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.

[0231] 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 .

[0232] In a specific structure of this embodiment, the top surface of the water stirring plate 230 is a curved surface convex upward. Preferably, 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.

[0233] Further, in this embodiment, the guide surface for guiding the movement of clothes during washing includes a first guide surface 213, which is formed by the side wall of the second extension section 212, and 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.

[0234] Specifically, when the washing machine of this embodiment is washing, the water stirring member 200 and the washing tub 100 rotate simultaneously and relatively, and the clothes can move along the bottom 100-3 of the washing tub 100 toward the central area, then move upward along the second guide surface 214 to the first guide surface 213, move toward the periphery under the guidance of the first guide surface 213, and then fall along the barrel wall of the washing tub 100 to the barrel bottom 100-3, forming a circular path. On the one hand, the tumbling of the clothes in the barrel can be strengthened to improve the washing effect, and on the other hand, the probability of the clothes concentrating toward the center and getting tangled is reduced.

[0235] 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.

[0236] 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.

[0237] 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.

[0238] 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.

[0239] 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.

[0240] 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.

[0241] 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.

[0242] It can be understood that during washing, 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.

[0243] 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.

[0244] 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.

[0245] This embodiment is described by setting the installation groove 100-1 on the bottom 100-3 of the washing tub 100, and plugging and matching with the assembly part 210-1 of the water stirring member 200. It can be understood that the specific assembly structure of the water stirring member 200 and the washing tub 100 / stirring shaft 300 described in the first to third embodiments of the present invention is also applicable to the specific structure of the water stirring member 200 described in this embodiment.

[0246] In this embodiment, by designing the specific structure of the water-stirring component 200, the side wall of the support column 210 is used to form a guiding surface that can guide the movement of clothes. Combined with the specific structure of the water-stirring rib 220, the effect of driving the clothes to move along a circular path below the maximum radius Rmax is better.

[0247] Embodiment 6

[0248] like Figures 26 to 30 As shown, this embodiment is a further limitation of the above-mentioned embodiment four or five, 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 is a cavity configured from the top end along the axial direction toward the assembly portion 210-1.

[0249] 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.

[0250] 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.

[0251] 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.

[0252] 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.

[0253] Preferably, the water stirring ribs 220 are also configured as hollow structures.

[0254] Further preferably, the internal space of the water stirring rib 220 is connected to the cavity 210-9 inside the hollow column 210-8.

[0255] 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 .

[0256] 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 .

[0257] Specifically, the assembly portion 210 - 1 and the stirring shaft 300 are circumferentially positioned by splines and rotate together, and are axially positioned by screws 210 - 7 .

[0258] 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.

[0259] 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 the screw 210-7 enters the cavity 210-9 through the opening and downwardly connects with the stirring shaft 300 key-connected in the assembly portion 210-1, thereby axially fixing the water stirring member 200 with the stirring shaft 300. In order to prevent water from entering the cavity 210-9, a blocking component is installed at the opening.

[0260] 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.

[0261] Specifically, the upper end of the assembly part 210-1 is provided with a through hole, preferably a threaded hole, the rod of the screw 210-7 passes through the top of the assembly part 210-1 and is tightened in the threaded hole, and the head of the screw 210-7 abuts against the top of the assembly part 210-1. The operator disassembles and assembles the screw 210-7 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.

[0262] 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 .

[0263] 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.

[0264] The top of the flat plate portion and the top of the water stirring member 200 are in the same plane.

[0265] 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.

[0266] 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.

[0267] 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.

[0268] 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 .

[0269] 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 the screws 210-7 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, washing water can be prevented 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.

[0270] Embodiment 7

[0271] like Figures 26 to 30 As shown, this embodiment is a further limitation of any one of the above-mentioned embodiments 4 to 6, 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. The stirring shaft 300 rotatably passes through the mounting portion 100-2 of the barrel bottom 100-3 and is connected to the assembly portion 210-1.

[0272] As a specific embodiment, the distance from the side wall of the mounting portion 210- to the inner surface of the peripheral wall of the washing tub 100 is close to the distance from the side wall of the stirring shaft 300 to the inner surface of the peripheral wall of the washing tub 100. More specifically, the distance from the side wall of the mounting portion 210- to the inner surface of the peripheral wall of the washing tub 100 is slightly smaller than the distance from the side wall of the stirring shaft 300 to the inner surface of the peripheral wall of the washing tub 100.

[0273] In this way, the bottom surface of the washing tub 100 is substantially completely exposed to the washing space above, thereby avoiding the problem of dirt and grime accumulating at the bottom 100 - 3 of the tub.

[0274] In this embodiment, the dehydration shaft 110 connected to the washing barrel 100 is mounted on the stirring shaft 300. At the upper end of the dehydration shaft 110, a sealing structure 120 is arranged between the dehydration shaft 110 and the stirring shaft 300, so that the dehydration shaft 110 and the stirring shaft 300 can be sealed and connected relatively rotatably to prevent water from entering between the dehydration shaft 110 and the stirring shaft 300.

[0275] Specifically, the sealing structure 120 is sleeved on the stirring shaft 300 , and the outer peripheral wall of the sealing structure 120 is relatively fitted with the inner peripheral wall of the dehydration shaft 110 .

[0276] As a specific implementation, the upper end surface of the sealing structure 120 is flush or substantially flush with the inner surface of the barrel bottom 100 - 3 , thereby preventing a gap that is easy to harbor dirt and grime from being formed between the dehydration shaft 110 and the stirring shaft 300 .

[0277] The above-mentioned “substantially flush” means that the upper end surface of the sealing structure 120 may be slightly higher than the inner surface of the barrel bottom 100 - 3 , or slightly lower than the inner surface of the barrel bottom 100 - 3 .

[0278] For the structure where the upper end surface of the sealing structure 120 is slightly higher than the inner surface of the barrel bottom 100-3, no concave gap is formed between the dehydration shaft 110 and the stirring shaft 300. For the structure where the upper end surface of the sealing structure 120 is slightly lower than the inner surface of the barrel bottom 100-3, although a concave gap is formed, the concave size of the gap is very small, and the flushing force of the water flow passing through this place during washing is sufficient to remove the lint and dirt there, and no dirt will remain.

[0279] As a specific embodiment, the lower end surface of the water stirring member 200, that is, the lower end surface of the assembly part 210-1, is at least partially arranged opposite to the upper end surface of the sealing structure 120. The assembly part 210-1 is sleeved on the upper end of the stirring shaft 300, and the lower end diameter of the assembly part 210-1 is larger than the diameter of the stirring shaft 300.

[0280] Furthermore, the diameter of the lower end of the fitting portion 210 - 1 is greater than the outer diameter of the sealing structure 120 .

[0281] In a specific embodiment, the difference between the lower end diameter of the assembly portion 210 - 1 and the outer diameter of the sealing structure 120 is close to the wall thickness of the assembly portion 210 - 1 in the radial direction.

[0282] In this embodiment, the specific assembly relationship between the bottom of the water stirring member 200, the stirring shaft 300 and the barrel bottom 100-3 further ensures that the barrel bottom 100-3 is free from dirt and grime.

[0283] 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 machine, characterized in that: include: A washing tub (100) for containing laundry; A water stirring member (200) is rotatably disposed inside the washing tub (100) and has a maximum radius along the radial direction of the washing tub (100) at a certain distance from the inner surface of the bottom (100-3) of the washing tub (100); A driving device is respectively connected to the washing tub (100) and the water stirring member (200) and is used to drive the washing tub (100) and the water stirring member (200) to rotate simultaneously or alternately during washing, thereby driving at least part of the clothes to move in an area below the maximum radius of the water stirring member (200) for washing.

2. The washing machine according to claim 1, characterized in that: The driving device is connected to the stirring shaft (300) in a transmission manner; a mounting portion (100-2) is provided at the center of the bottom (100-3) of the washing barrel (100); and the stirring shaft (300) rotatably passes through the mounting portion (100-2) and is connected to the lower end of the water stirring member (200); The area of ​​the barrel bottom (100-3) extending outward from the mounting portion (100-2) to the barrel wall of the washing barrel (100) is the washing surface (100-31), and the vertical downward projection of the outer periphery of the water stirring member (200) at the maximum radius directly falls on the washing surface (100-31).

3. The washing machine according to claim 2, characterized in that: The water stirring member (200) comprises: An assembly portion (210-1) is arranged above the installation portion (100-2) and extends upward from the lower end of the water stirring member (200) to a certain length; A water stirring portion (240) connected to the upper end of the assembly portion (210-1) and having a certain height along the axial direction of the washing tub (100); No pulsator is provided between the assembly portion (210-1) and the bottom of the washing tub (100).

4. The washing machine according to claim 3, characterized in that: The mounting portion (100-2) is a mounting through hole (100-21) opened at the center of the barrel bottom (100-3), the stirring shaft (300) is rotatably inserted into the mounting through hole (100-21), and the diameter of the lower end of the assembly portion (210-1) is equal to or substantially equal to the diameter of the mounting through hole (100-21).

5. The washing machine according to claim 3, characterized in that: The lower end surface (210-11) of the assembly portion (210-1) is spaced apart from the mounting portion (100-2), so that clothing can contact the lower end surface (210-11) of the assembly portion (210-1).

6. The washing machine according to claim 3, characterized in that: The mounting portion (100-2) comprises a mounting groove (100-1) arranged on the inner surface of the barrel bottom (100-3), and the assembly portion (210-1) is at least partially inserted into the mounting groove (100-1); A water seal structure (500) is provided between the bottom surface of the installation groove (100-1) and the lower end surface of the assembly portion (210-1); and / or a water seal structure (500) is provided between the groove peripheral wall of the installation groove (100-1) and the side wall of the assembly portion (210-1).

7. The washing machine according to any one of claims 3 to 6, characterized in that: The water stirring portion (240) comprises a support column (210) and a water stirring rib (220); the support column (210) is extended upward from the upper end of the assembly portion (210-1); the water stirring rib (220) protrudes radially or obliquely to the radial direction from the side wall of the support column (210); and the water stirring rib (220) has a certain extension length along the axial direction.

8. The washing machine according to claim 7, characterized in that: The lower end surface of the assembly portion (210-1) is not lower than the mounting portion (100-2), and the lower end of the water stirring rib (220) extends to be flush with the lower end surface of the assembly portion (210-1); Preferably, there is a gap between the lower end of the water stirring rib (220) and the inner surface of the barrel bottom (100-3).

9. The washing machine according to claim 7, characterized in that: The mounting portion (100-2) comprises a mounting groove (100-1) arranged on the inner surface of the barrel bottom (100-3), and the assembly portion (210-1) is at least partially inserted into the mounting groove (100-1); the lower end of the water stirring rib (220) extends to the lowest point to be flush with the inner surface of the barrel bottom (100-3) at the periphery of the mounting groove (100-1); Preferably, there is a gap between the lower end of the water stirring rib (220) and the inner surface of the barrel bottom (100-3) at the outer periphery of the installation groove (100-1).

10. The washing machine according to any one of claims 1 to 6, characterized in that: The driving device drives the washing tub (100) and the water stirring member (200) to rotate in opposite directions during washing, thereby driving the clothes to move for washing.

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