Washing barrel assembly of washing equipment and washing equipment

Abstract

The utility model discloses a wash bucket assembly of washing equipment and the washing equipment, the wash bucket assembly comprises a wash bucket and a water stirring component rotatably arranged in the wash bucket, the water stirring component comprises an assembling part with a certain length along the axial direction of the wash bucket and a water stirring part connected with the assembling part; the assembling part is located between the bottom surface of the washing barrel and the water stirring part of the water stirring component, and the radius size of the assembling part in the radial direction of the washing barrel is smaller than the maximum radius size of the water stirring component; the bottom of the water stirring component is not provided with a disc-shaped stirring part. According to the utility model, the assembling part, close to the bottom of the washing barrel, of the water stirring component is not the maximum-radius part of the water stirring component, so that the radius size of the bottom area of the water stirring component is reduced, and therefore, most of the area of the bottom of the barrel can be exposed in a space capable of contacting clothes; the problems that dirt is easily hidden between the stirring device and the barrel bottom of existing washing equipment and is difficult to clean are solved.

Description

Technical Field

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

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

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

[0004] A stirring washing machine is also proposed in the prior art, 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 Y can only be washed in the area above the radial agitator 3 in the tub, which still cannot solve the problem that the gap between the agitator 1 and the bottom of the tub is easy to hide dirt and is difficult to clean. Some other agitator washing machines directly install the columnar agitator rod on the impeller at the bottom of the tub, and dirt and bacteria are still easy to accumulate between the impeller and the bottom of the tub.

[0005] On the other hand, for washing machines with a bottom impeller, the clothes cover a large area on the impeller surface during washing. The friction between the impeller 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 impeller will also increase the energy consumption required by the drive motor to drive the impeller to rotate.

[0006] In view of this, the present utility model is proposed. Utility Model Content

[0007] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a washing barrel assembly of a washing device and a washing device, which can avoid the problem of dirt and grime being hidden between the water stirring component and the bottom of the washing barrel.

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

[0009] A washing tub assembly of a washing device comprises a washing tub and a water stirring member rotatably arranged inside the washing tub, wherein the water stirring member comprises a fitting portion having a certain length along the axial direction of the washing tub and a water stirring portion connected to the fitting portion;

[0010] The assembly portion is located between the bottom surface of the washing tub and the water stirring portion of the water stirring member, and the radial dimension of the assembly portion along the radial direction of the washing tub is smaller than the maximum radial dimension of the water stirring member; the bottom of the water stirring member does not have a disc-shaped stirring portion.

[0011] Furthermore, the radius of the horizontal section of the water stirring part at a certain height from the upper end of the assembly part is the maximum radius of the water stirring component, and a washing space is formed between the height of the horizontal section with the largest radius and the bottom of the washing tub; the area of ​​the water stirring part below the horizontal section with the largest radius is the first clothing contact surface.

[0012] Furthermore, a mounting portion is provided at the center of the bottom of the washing tub, and a stirring shaft for driving the water stirring member to rotate rotatably passes through the mounting portion; the interior of the mounting portion is hollow and is sleeved on the upper end of the stirring shaft;

[0013] The assembly portion is projected onto the bottom of the washing tub to form a projection area, the projection area substantially coincides with the installation portion, and the surface of the bottom of the tub outside the projection area is a second clothing contact surface constituting the washing space.

[0014] Furthermore, the distance between the horizontal cross section with the largest radius and the upper end of the assembly portion is greater than the extension length of the assembly portion along the axial direction of the washing tub.

[0015] Furthermore, the radius of the assembly portion is less than or equal to the radius of any horizontal cross section of the water stirring portion in an area close to the assembly portion.

[0016] Further, below the horizontal cross section with the largest radius, the radius of the horizontal cross section of the water stirring portion increases gradually or stepwise upward along the axis, or the radius of the horizontal cross section of the water stirring portion increases and decreases alternately upward along the axis;

[0017] Preferably, the side surface of the water stirring portion extends upward and outwardly relative to the axial direction in the area connected to the assembly portion, and the acute angle between the extension direction and the horizontal direction is not less than 20°, and as the extension length increases, the acute angle between the extension direction and the horizontal direction increases.

[0018] Further, the horizontal cross section with the largest radius is formed at the top of the water stirring portion;

[0019] Alternatively, the horizontal section with the largest radius is formed in the middle area of ​​the water stirring portion, and above the horizontal section with the largest radius, the side surface of the water stirring portion extends upward and gradually or stepwise approaches the axis;

[0020] Alternatively, along the axial direction of the washing tub, the water stirring portion has a plurality of horizontal cross sections with the largest radius distributed at intervals, and between two adjacent horizontal cross sections with the largest radius, the side surface of the water stirring portion extends upward, first tilts toward the axis, and then tilts toward the periphery.

[0021] Furthermore, the water stirring portion includes a support column extending axially from the upper end of the assembly portion, and a water stirring structure arranged on the side wall of the support column; the water stirring structure is at least arranged in a region lower than the horizontal cross section with the largest radius.

[0022] Further, the water stirring structure includes a water stirring rib protruding from the side wall of the support column and extending in the axial direction, and a certain interval is set between the lower end of the water stirring rib and the bottom of the washing bucket, or the lower end of the water stirring rib extends to the side wall of the assembly part; the side of the water stirring rib away from the axis at least extends obliquely upward toward the periphery in the lower end area;

[0023] Preferably, at the lower end of the water stirring rib, the acute angle between the extension direction away from the axis and the horizontal direction is not less than 20°.

[0024] A washing device, characterized by comprising the washing barrel assembly of the washing device described above.

[0025] After adopting the above technical scheme, the utility model has the following beneficial effects compared with the prior art.

[0026] In the utility model, the assembly portion of the water stirring member arranged near the bottom of the washing barrel is not the point where the radius of the water stirring member is the largest, which avoids the water stirring member having a large radius size in the area close to the bottom of the barrel, which is beneficial to exposing most of the bottom of the barrel to the space that can contact the clothes, and then the contact and friction between the clothes and the bottom of the barrel during the washing process can be used to prevent the adhesion of lint and other dirt, avoiding the problem that dirt is easily hidden between the stirring device and the bottom of the barrel of the existing washing equipment and is difficult to clean.

[0027] In the utility model, the horizontal section with the largest radius of the water stirring part is arranged at a certain height from the upper end of the assembly part, so that the clothes can be washed at a height lower than the height of the horizontal section with the largest radius, so that they can contact the area of ​​the water stirring part below the horizontal section with the largest radius, effectively avoiding the dead corners on the surface of the water stirring part that are easy to hide dirt and grime.

[0028] In the utility model, except for the projection area of ​​the assembly part, the bottom of the washing tub can basically contact the clothes during washing. The size of the assembly part and the mounting part is matched so that the projection area and the mounting part basically overlap, ensuring that the area of ​​the bottom of the tub that can contact the clothes is maximized. The distance from the horizontal section with the largest radius on the stirring part to the upper end of the mounting part is greater than the axial length of the mounting part itself, ensuring that the washing space below the horizontal section with the largest radius is large enough, thereby further ensuring that the clothes can fully contact the side of the stirring part in the washing space and the bottom of the washing tub to prevent dirt from adhering.

[0029] In the utility model, the water stirring part of the water stirring component can use the water stirring ribs arranged on the support column to stir the washing water and clothes in the barrel. There is a gap between the lower end of the water stirring ribs and the bottom of the barrel, and the side away from the axis extends obliquely upward toward the periphery in the lower end area, which can avoid the presence of a cleaning dead corner between the lower end of the water stirring ribs and the bottom of the washing barrel to which dirt is easily attached.

[0030] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation on the present invention. Obviously, the accompanying drawings described below are only some embodiments. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without creative work. In the accompanying drawings:

[0032] Figure 1 It is a structural schematic diagram of a stirring washing machine in the prior art;

[0033] Figure 2 This is a schematic diagram of a water stirring member of a structure in Embodiment 1 of the present utility model being applied in a washing device;

[0034] Figure 3 Schematic diagram of the relative positions of the water stirring member and the clothes in the embodiment of the utility model;

[0035] Figure 4 Schematic diagram of a cross section of a water stirring portion of a water stirring member in an embodiment of the utility model;

[0036] Figure 5 It is a schematic diagram of the radius of the water stirring member with a circular cross section in the embodiment of the utility model;

[0037] Figure 6 It is a schematic diagram of determining the radius of a water stirring member having an elliptical cross section in an embodiment of the utility model;

[0038] Figure 7 It is a schematic diagram of determining the radius of a water stirring member having a triangular cross section in an embodiment of the utility model;

[0039] Figure 8 It is a schematic diagram of determining the radius of a water stirring member having a positive cross section in an embodiment of the utility model;

[0040] Fig. 9 It is a schematic diagram of determining the radius of a water stirring member having a pentagonal cross section in an embodiment of the utility model;

[0041] Fig.10 It is a schematic diagram of determining the radius of a water stirring member having an irregular cross section in an embodiment of the utility model;

[0042] Fig.11 It is a schematic diagram of determining the radius of a water stirring member having another irregular cross-section in an embodiment of the utility model;

[0043] Fig.12 This is a schematic diagram of another structure of a water stirring member in Embodiment 1 of the utility model being applied in a washing device;

[0044] Fig.13 This is a schematic diagram of another structure of a water stirring member in Embodiment 1 of the utility model being applied in a washing device;

[0045] Fig.14 This is a schematic diagram of another structure of a water stirring member in Embodiment 1 of the utility model being applied in a washing device;

[0046] Fig.15 This is a schematic diagram of another structure of a water stirring member in Embodiment 1 of the utility model being applied in a washing device;

[0047] Fig.16 This is a schematic diagram of another structure of a water stirring member in Embodiment 1 of the utility model being applied in a washing device;

[0048] Fig.17 This is a schematic diagram of the movement path of clothes when washing at a low water level in an embodiment of the utility model;

[0049] Fig.18 This is a schematic diagram of the movement path of clothes when washing at a high water level in an embodiment of the utility model;

[0050] Fig.19 It is a cross-sectional view of the washing tub assembly in Embodiments 2 to 4 of the present utility model;

[0051] Fig. 20 It is a schematic diagram of the structure of the water stirring member in the second to fourth embodiments of the utility model;

[0052] Fig.21 This utility model Fig.19 The enlarged schematic diagram of point A in the middle;

[0053] Fig. 22 It is a schematic diagram of the dimensions of the water stirring component in the second embodiment of the present utility model;

[0054] Fig.23 It is a structural schematic diagram of the washing equipment in the fifth embodiment of the present utility model.

[0055] In the figure: 1, agitator; 2, axial agitator; 3, radial agitator; 4, washing tub; Y, clothes;

[0056] 100, washing tub; 100-1, mounting groove; 100-3, tub bottom; 110, dehydration shaft; 120, sealing structure; 200, water stirring member; 210-1, assembly part; 210-4, sealing groove; 210-5, sealing cover; 210-6, spline groove; 210-7, screw; 210-8, hollow column; 210-9, cavity; 210, support column; 211, first extension section; 212, second extension section; 213, first guide surface; 214, second guide surface; 220, water stirring rib; 230, water stirring plate; 231, stirring part; 240, water stirring part; 300, stirring shaft; 500, water seal structure; Rmax, maximum radius; C, clothes.

[0057] 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 rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0058] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.

[0059] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0060] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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.

[0061] like Figures 2 to 22 As shown, an embodiment of the utility model provides a washing bucket assembly of a washing device, and a washing device having the washing bucket assembly. The washing device can be a washing machine, a washing and drying machine, a care machine, and other washing devices with a clothing washing function.

[0062] Specifically, the washing tub assembly includes a washing tub 100 and a water stirring member 200 rotatably disposed inside the washing tub 100. The washing device further includes a driving device, which is transmission-connected to the washing tub 100 and the water stirring member 200, respectively.

[0063] More specifically, the output shaft of the driving device is respectively connected to the stirring shaft 300 and the dehydrating shaft 110. The stirring shaft 300 is connected to the water stirring member 200 and relatively fixed, and is used to drive the water stirring member 200 to rotate. The dehydrating shaft 110 is fixed to the bottom 100-3 of the washing tub 100, and is used to drive the washing tub 100 to rotate.

[0064] During the washing process, the driving device drives the water stirring member 200 to rotate alone, or drives the water stirring member 200 and the washing tub 100 to rotate in opposite directions, so as to utilize the relative rotation trend between the water stirring member 200 and the washing tub 100 to stir the clothes C and the washing water in the tub, thereby achieving a cleaning effect on the clothes C. During the dehydration process, the driving device drives the water stirring member 200 and the washing tub 100 to rotate synchronously at a high speed, and utilizes centrifugal force to spin dry the clothes C in the tub.

[0065] However, when the lint and dirt shed from the clothes C during the washing process are mixed into the washing water, if there is a relatively narrow gap structure between the water stirring member 200 and the washing tub 100, these lint and dirt are easily hidden in the gap structure and are difficult to be taken out by the impact force of the water flow during the washing process, and the user needs to manually disassemble the water stirring member 200 for cleaning. If the user does not clean it for a long time, a large amount of dirt will accumulate in the gap between the water stirring member 200 and the washing tub 100, which is easy to breed bacteria, causing the problem of secondary contamination of the clothes C.

[0066] Embodiment 1

[0067] like Figure 2 and Figure 3 As shown, this embodiment provides a washing tub assembly of a washing device, and a washing device having the washing tub assembly, which are 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.

[0068] Specifically, the washing tub assembly of the present embodiment includes a washing tub 100, and a water stirring member 200 rotatably disposed inside the washing tub 100. The water stirring member 200 includes a mounting portion 210-1 having a certain length along the axial direction of the washing tub 100, and a water stirring portion 240 connected to the mounting portion 210-1. The mounting portion 210-1 is located between the bottom surface of the washing tub 100 and the water stirring portion 240 of the water stirring member 200, and the radial dimension of the mounting portion 210-1 along the radial direction of the washing tub 100 is smaller than the maximum radial dimension of the water stirring member 200, and the bottom of the water stirring member 200 does not have a disc-shaped stirring portion.

[0069] In the above scheme, the assembly part 210-1 is arranged at the bottom of the water stirring member 200, and is used to connect with the stirring shaft 300. During washing, the water stirring member 200 rotates relative to the washing tub 100, and the washing water and clothes in the tub are stirred by the water stirring part 240. The assembly part 210-1 does not constitute the maximum radius of the water stirring member 200, and the bottom of the water stirring member 200 does not have a disc-shaped stirring part, that is, the water stirring member 200 does not have a structure extending radially along the washing tub 100 to cover the barrel bottom 100-3 at the bottom area of ​​the washing tub 100, which is conducive to exposing most of the area of ​​the barrel bottom 100-3 in the washing space.

[0070] In the embodiment of the utility model, the washing space refers to the space area that clothes can reach during the washing process. Therefore, with the above structure, most of the area of ​​the barrel bottom 100-3 can be in contact with the clothes during the washing process to prevent dirt from adhering, avoiding the problem that dirt is easily hidden between the stirring device and the barrel bottom of the existing washing equipment and is difficult to clean.

[0071] Furthermore, in the specific solution of this embodiment, the radius of the assembly portion 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 portion 240 near the assembly portion 210-1. In other words, within a certain height range from the lower end of the water stirring member 200 upward, the assembly portion 210-1 is the smallest radius section within the range.

[0072] In this embodiment, the radius of the assembly portion 210-1 is set small enough, and the radius is increased above the assembly portion 210-1, that is, the area where the water stirring portion 240 is close to the assembly portion 210-1, which is equivalent to setting a structure with a slightly larger size in the radial direction at a certain height from the barrel bottom 100-3. In other words, the water stirring member 200 of this embodiment does not have a wave plate structure extending in the radial direction at the bottom.

[0073] Thus, compared with a conventional pulsator washing machine or an agitator washing machine with a radial agitator, the water stirring member 200 of this embodiment is installed in the washing tub 100, so that the bottom 100-3 of the tub can be almost completely exposed in the washing space, and the contact and friction between the clothes C and the bottom 100-3 of the tub can be used to prevent the adhesion of dirt. In this way, the effect of preventing dirt accumulation is better, and the secondary contamination of the clothes by the dirt accumulation can be avoided, thereby improving the user experience.

[0074] It should be noted that in the embodiment of the present invention, the radius of the horizontal cross section of the water stirring portion 240 refers to the cross section of the water stirring portion 240 taken along the horizontal direction (see Figure 4 ), the distance from the farthest point on the horizontal section to the center of rotation.

[0075] Specifically, if the horizontal cross section of the water stirring portion 240 is Figure 5 If the horizontal cross section of the stirring portion 240 is Figures 6 to 11 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).

[0076] Accordingly, in this embodiment and subsequent embodiments, the "diameter" mentioned refers to twice the radius size mentioned above.

[0077] In a further solution of this embodiment, 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, that is, Figure 2 and Figure 3The maximum radius Rmax shown in the figure is the maximum radius of the water stirring member 200. A washing space can be formed between the height of the maximum radius Rmax and the bottom 100-3 of the washing tub 100, and the area of ​​the water stirring member 240 below the maximum radius Rmax is the first clothing contact surface that can contact the clothing C during washing.

[0078] As a specific implementation, in this embodiment, the distance h between the maximum radius Rmax of the water stirring part 240 and the barrel bottom 100-3 is more than 10 cm, thereby ensuring that the clothes C can be washed in the washing space at a height lower than the maximum radius Rmax. In this way, the clothes C can fully contact the barrel bottom 100-3 of the washing barrel 100 and the surface of the water stirring part 240 below the height of the maximum radius Rmax, avoiding dirt and grime between the water stirring member 200 and the washing barrel 100.

[0079] 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.

[0080] 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.

[0081] Furthermore, in 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 portion 240, the water stirring structure is at least disposed in a region lower than the maximum radius Rmax.

[0082] 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.

[0083] 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.

[0084] The water-stirring component 200 having the above structure, the side of the water-stirring portion 240 includes both the side wall of the support column 210 and the surface of the water-stirring rib 220 farthest from the rotation axis, and the radius of the water-stirring portion 240 is the distance between the farthest point on the water-stirring rib 220 from the rotation axis and the rotation axis.

[0085] 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.

[0086] 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.

[0087] In this embodiment, the side of the water stirring portion 240 is configured such that as the height of the rotation axis increases, the distance between the side of the water stirring portion 240 and the wall of the washing tub 100 remains constant, or changes gradually or stepwise.

[0088] As a specific implementation method, Figure 2 ,as well as Figure 12 to Figure 14 As shown, the water stirring portion 240 has a unique maximum radius Rmax in the height direction, and at least below the maximum radius Rmax, as the height increases, the distance between the side of the water stirring portion 240 and the barrel wall of the washing barrel 100 decreases as the height increases, that is, the horizontal cross-sectional radius of the water stirring portion 240 increases upward along the axis.

[0089] In the first specific embodiment, if Fig.12As shown, the maximum radius Rmax of the water-stirring portion 240 is set at the top of the water-stirring member 200, that is, the top surface of the water-stirring member 200 is the horizontal cross-section of the water-stirring portion 240 with the maximum radius.

[0090] In the second specific scheme, if Figure 2 As shown, the maximum radius Rmax of the water stirring portion 240 is close to the top of the water stirring member 200, but is at a certain distance from the top of the water stirring member 200. Specifically, the upper side surface of the water stirring portion 240 at its maximum radius Rmax is an upwardly convex curved surface, and the highest point of the curved surface forms the top of the water stirring member 200.

[0091] As a detailed solution, a plurality of water stirring ribs 220 are arranged on the side of the support column 210, and the radial dimension of the water stirring ribs 220 gradually increases from bottom to top, and the maximum radius Rmax of the water stirring portion 240 is formed at the uppermost end. A water stirring plate 230 perpendicular to the axial direction is arranged at the upper end of the support column 210, and the upper side surface of the water stirring plate 230 is an upwardly convex curved surface.

[0092] In the third specific scheme, if Fig.13 and Fig.14 As shown, the maximum radius Rmax of the water stirring portion 240 is located in the middle of the water stirring portion 240 along the height direction.

[0093] In a detailed scheme, Fig.13 As shown, the distance between the side of the water stirring portion 240 and the barrel wall of the washing tub 100 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 barrel bottom 100-3 of the washing tub 100 upward until the maximum radius Rmax is formed, and above the maximum radius Rmax, the side of the water stirring portion 240 extends upward and gradually approaches the axis, so that the horizontal cross-sectional radius of the water stirring portion 240 gradually decreases, and finally forms the top of the water stirring member 200.

[0094] In another detailed scheme, Fig.14As shown, the distance between the side of the water stirring part 240 and the barrel wall of the washing tub 100 has a sudden change at at least one height position. Specifically, as the height increases, the horizontal cross-sectional radius of the water stirring part 240 first gradually increases from the barrel bottom 100-3 of the washing tub 100 upwards, and when reaching a certain height, the radius suddenly increases, forming 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; then the side of the water stirring part 240 extends upward and approaches the axis, so that the horizontal cross-sectional radius of the water stirring part 240 gradually decreases, and finally forms the top of the water stirring member 200. In this solution, the distance h from the maximum radius Rmax to the barrel bottom 100-3 of the washing tub 100 refers to the distance from the lowest height in the height range where the horizontal cross-sectional radius of the water stirring part 240 remains constant to the barrel bottom 100-3 of the washing tub 100.

[0095] In the above scheme, Fig.13 and Fig.14 The figure shows the outer contour of the water stirring portion 240 of the water stirring member 200. Fig.14 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 side of the water-stirring rib 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.

[0096] It should be understood that the above-mentioned structure is only used for illustration and is not intended to limit the present invention.

[0097] As another specific implementation, Fig.15 As shown, the water stirring portion 240 has a unique maximum radius Rmax in the height direction, but below the maximum radius Rmax, as the height increases, the distance between the side of the water stirring portion 240 and the barrel wall of the washing barrel 100 increases and decreases alternately with the increase in height, that is, the horizontal cross-sectional radius of the water stirring portion 240 increases and decreases alternately upward along the axis.

[0098] In detail, between the maximum radius Rmax of the water stirring portion 240 and the lower end of the water stirring portion 240, one or more radially protruding structures are provided. Along the axial direction upward, the horizontal cross-sectional radius of the water stirring portion 240 first gradually increases to the lowest protruding structure, then gradually decreases, and then gradually increases to the next protruding structure. After passing the protruding structure, it gradually decreases and then gradually increases until it finally increases to the maximum radius Rmax of the water stirring portion 240.

[0099] It is understandable that the above-mentioned protruding structure can be formed by the outer contour of the water-stirring rib itself, or can be formed by a plurality of disc-shaped water-stirring structures arranged perpendicular to the supporting column.

[0100] As another specific implementation method, Fig.16 As shown, the water stirring portion 240 has a plurality of spaced maximum radius points Rmax in the axial direction of the washing tub 100. Specifically, as the height increases, the horizontal cross-sectional radius of the water stirring portion 240 increases and decreases alternately, each time increasing to the same radius size and then decreasing, thereby forming a plurality of spaced maximum radius points Rmax.

[0101] In the above solution, between two adjacent maximum radius points Rmax, the side surface of the water stirring portion 240 extends upward, first tilts toward the axis, and then tilts toward the periphery.

[0102] In a further solution of this embodiment, the distance between the maximum radius Rmax of the water stirring portion 240 and the upper end of the mounting portion 210-1 is greater than the extension length of the mounting portion 210-1 along the axial direction of the washing tub 100. Preferably, the distance between the maximum radius Rmax of the water stirring portion 240 and the upper end of the mounting portion 210-1 is several to dozens of times the length of the mounting portion 210-1 along the axial direction of the washing tub 100.

[0103] In this way, the washing space formed below the maximum radius Rmax of the water stirring part 240 is ensured to be large enough, so that the clothes can fully contact the side of the water stirring part 240 and the bottom 100-3 of the washing tub 100 in the washing space to prevent dirt from adhering.

[0104] In this embodiment, the washing tub 100 has a mounting portion at the center of the bottom 100-3 of the washing tub 100 for mounting the stirring shaft 300, and the stirring shaft 300 rotatably passes through the mounting portion and is connected to the assembly portion 210-1 of the water stirring member 200. The assembly portion 210-1 is located above the mounting portion, and its radial dimension is equal to or substantially equal to the radial dimension of the mounting portion.

[0105] With the above structure, the projection area formed by the projection of the assembly part 210-1 onto the barrel bottom 100-3 of the washing barrel 100 is substantially overlapped with the area occupied by the installation part. The area on the surface of the barrel bottom 100-3 outside the above projection area is the second clothing contact surface of the washing space formed between the above maximum radius Rmax and the barrel bottom 100-3, and the second clothing contact surface can contact clothing during the washing process. The projection area is substantially overlapped with the area occupied by the installation part, which is conducive to maximizing the area of ​​the second clothing contact surface, thereby preventing dirt from accumulating on the surface of the barrel bottom 100-3 of the washing barrel 100 to the greatest extent.

[0106] As a specific implementation, the second clothing contact surface 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 .

[0107] In a further solution of this embodiment, the water-stirring rib 220 arranged on the side wall of the support column 210 has its lower end spaced apart from the bottom 100-3 of the washing tub 100, thereby preventing a dead corner that cannot contact clothes from being formed between the lower end of the water-stirring rib 220 and the bottom 100-3.

[0108] Preferably, 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 C and is easy to hide dirt.

[0109] 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.

[0110] 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.

[0111] In a preferred embodiment, the radial dimension of the lower end of the water stirring rib 220 is close to zero, and the side of the water stirring rib 220 away from the axis extends obliquely upward toward the periphery in the lower end area. In this way, there is no lower end surface facing the bottom 100-3 of the washing tub 100 at the lower end of the water stirring rib 220, or the area of ​​the lower end surface is small enough, and the flow of washing water is sufficient to prevent dirt from adhering to the area, thereby avoiding the formation of a cleaning dead corner where dirt is easily accumulated.

[0112] In a preferred embodiment, at the lower end of the water-stirring rib 220, the acute angle α between the side away from the axis and the horizontal direction is greater than 20°, preferably greater than 30°, to ensure that the lower area of ​​the water-stirring rib 220 can contact the clothes.

[0113] In a further solution, the side of the water stirring rib 220 away from the axis is a curved surface that extends in a curved manner. Specifically, in this embodiment, the side 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.

[0114] In this embodiment, the outer peripheral side 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, thereby lifting the clothes upward near the center area of ​​the barrel bottom 100-3, and guiding the clothes to move toward the periphery after the clothes rise with the water flow to a point close to the maximum radius Rmax. In this way, the turning movement of the clothes in the barrel is strengthened, the washing effect can be enhanced, and at the same time, the clothes can be prevented from excessively gathering toward the center and causing entanglement.

[0115] In a further embodiment, the height of the maximum radius Rmax of the water stirring portion 240 of the water stirring member 200 in this embodiment is set between the highest water level and the lowest water level of the washing device. In this way, when the washing device uses different water levels for washing, the relative rotation of the water stirring member 200 and the washing tub 100 can generate different water flow modes to drive the clothes C to move for washing, especially, below the maximum radius Rmax, the clothes C move along a circular path for washing.

[0116] The circular path mentioned above means that the clothes move toward the center in the bottom area of ​​the washing tub 100, are lifted by the water stirring member 200 to a position close to the maximum radius Rmax of the water stirring portion 240, move toward the periphery and then fall.

[0117] See also Fig.17 and Fig.18As a specific solution, the circular path of the clothes moving below the maximum radius Rmax of the water stirring part 240 during washing includes: the clothes move along the bottom 100-3 of the washing tub 100 toward the central area, move upward along the side of the water stirring part 240 in the central area to below the maximum radius Rmax and then move toward the periphery, and move downward in the area close to the wall of the washing tub 100.

[0118] More specifically, the washing tub assembly of this embodiment is applied to washing equipment, such as Fig.17 As shown, when the water is operated at a low water level W1 lower than the maximum radius Rmax of the water stirring part 240, the clothes move in the water along the circular path mentioned above.

[0119] In detail, during the washing process, the water stirring member 200 and the washing tub 100 rotate relative to each other, and the clothes move along the path indicated by the arrow in the figure in the space below the maximum radius Rmax of the water stirring part 240. That is, the clothes move and gather along the bottom 100-3 of the washing tub 100 toward the central area, and are lifted to below the maximum radius Rmax along the side wall of the support column 210 or the outer peripheral edge of the water stirring rib 220 in the central area, and then move toward the periphery, and finally fall along the barrel wall of the washing tub 100 to the barrel bottom 100-3, forming a circular motion mode.

[0120] like Fig.18 As shown, when a high water level W2 higher than Rmax of the maximum radius of the water stirring part 240 is used, in an area lower than Rmax of the maximum radius of the water stirring part 240, the clothes move in the water along the above-mentioned circular path; while in an area higher than Rmax of the maximum radius of the water stirring part 240, the clothes move close to the circumferential direction of the washing tub 100.

[0121] In detail, during the washing process, the water stirring member 200 and the washing tub 100 rotate relative to each other, and in the area below the maximum radius Rmax of the water stirring portion 240, the movement path of the clothes is basically the same as the movement path under the low water level W1. In the area above the maximum radius Rmax of the water stirring portion 240, the clothes move alternately forward and reverse along the circumference of the washing tub 100 as the water stirring member 200 rotates alternately forward and reverse.

[0122] In the above scheme, when different washing water levels are used, the water stirring member 200 can drive the clothes in the barrel to move in different ways for washing, providing more diverse washing method options. In addition, in the area below the maximum radius Rmax of the water stirring part 240, since the clothes move along a circular path, on the one hand, the clothes can be tumbled and the washing effect can be enhanced, and on the other hand, the problem that the existing pulsator washing machine easily drives the clothes to gather at the center, causing the clothes to be entangled, is avoided.

[0123] In this embodiment, the assembly relationship between the water stirring member 200, the stirring shaft 300 and the washing tub 100 can adopt the following implementations.

[0124] In the first specific embodiment, a groove structure with an open upper side is provided on the bottom 100-3 of the washing tub 100 as the installation portion, and the stirring shaft 300 extends into the inner side of the washing tub 100 from the installation through hole provided on the bottom wall of the groove structure, and the assembly portion 210-1 is rotatably plugged into and matched with the groove structure. Since the lower end of the water stirring rib 220 is not lower than the upper end of the assembly portion 210-1, the lower end surface of the water stirring rib 220 can contact the clothes. At the same time, since there is no other structure extending radially along the washing tub 100 between the lower end of the water stirring rib 220 and the assembly portion 210-1, the area of ​​the bottom 100-3 of the washing tub 100 located on the periphery of the groove structure can contact the clothes during washing, thereby preventing the adhesion of lint and dirt.

[0125] In the second specific embodiment, there is a gap between the lower end surface of the assembly part 210-1 and the barrel bottom 100-3 of the washing barrel, the mounting part at the center of the barrel bottom 100-3 is a mounting through hole, and the stirring shaft 300 passes through the mounting through hole opened on the barrel bottom 100-3 of the washing barrel 100 and is connected to the assembly part 210-1. The gap between the lower end surface of the assembly part 210-1 and the barrel bottom 100-3 allows the lower end surface of the assembly part 210-1 and the area of ​​the barrel bottom 100-3 of the washing barrel 100 located at the periphery of the mounting through hole to contact the clothes, preventing the existence of a cleaning dead corner where dirt is easily attached.

[0126] In the third specific embodiment, the mounting portion at the center of the barrel bottom 100-3 is also a mounting through hole, and the stirring shaft 300 passes through the mounting through hole on the barrel bottom 100-3 of the washing barrel 100 and extends into the washing barrel 100. The assembly portion 210-1 is mounted on the upper end of the stirring shaft 300, and there is a small gap or almost no gap between the lower end of the assembly portion 210-1 and the barrel bottom 100-3 of the washing barrel 100. The difference between the outer diameter and the inner diameter of the bottom of the assembly portion 210-1 is small enough so that the outer surface of the assembly portion 210-1 can contact the clothes during the washing process, and the area of ​​the barrel bottom 100-3 of the washing barrel 100 located on the periphery of the mounting through hole can contact the clothes, preventing the existence of a cleaning dead corner that is easy to adhere to dirt. Preferably, the outer wall of the assembly portion 210-1 and the side wall of the stirring shaft 300 have a smooth transition, further avoiding the possibility of a cleaning dead corner.

[0127] When washing clothes C, the washing device having the washing tub assembly described in this embodiment can drive the clothes C to move along a circular path below the maximum radius Rmax of the water stirring part 240 of the water stirring member 200 by controlling the water stirring member 200 and the washing tub 100 to rotate relative to each other.

[0128] Specifically, in the bottom area of ​​the washing tub 100, the stirring action of the water stirring member 200 on the water flow drives the water flow to generate a flow trend along the radial direction of the washing tub 100, and then drives the clothes C to move along the bottom 100-3 of the washing tub 100 toward the central area. The clothes C gathered toward the center move to the area in contact with the assembly part 210-1 of the water stirring member 200, and are lifted upward under the rotation of the water stirring member 200 until they move to the lower side of the maximum radius Rmax of the water stirring part 240. At the lower side of the maximum radius Rmax of the water stirring part 240, the trend of the water flow and the clothes C to continue to move upward is blocked, and then they move along the lower side of the maximum radius Rmax of the water stirring part 240 toward the outer wall of the tub, and finally descend along the tub wall back to the bottom 100-3 under the action of gravity and the water flow.

[0129] In the present embodiment, the water stirring member 200 installed in the washing barrel 100 is an assembly portion 210-1 with a smaller radius at the portion close to the bottom 100-3 of the washing barrel 100, and the radius of the water stirring member 200 is further increased above the assembly portion 210-1, thereby preventing the water stirring member from having a larger radius in the area close to the bottom 100-3. In combination with setting the maximum radius Rmax of the water stirring portion 240 at a certain height above the upper end of the assembly portion 210-1, most of the area of ​​the bottom 100-3 and the area on the side of the water stirring portion 240 below the maximum radius Rmax are exposed to the space where clothes can be contacted, thereby preventing lint and other dirt from adhering to the clothes during the washing process by utilizing the contact and friction between the clothes and the bottom 100-3 and the surface of the water stirring member 200, thereby avoiding the problem of dirt and grime being easily hidden and difficult to clean between the stirring device and the bottom of the barrel of the existing washing equipment.

[0130] On the other hand, during the washing process, the water stirring component 200 can drive the clothes C to gather towards the center at the bottom of the barrel 100-3, then be lifted to a certain height, and then guide the clothes C to move toward the periphery and then fall, thereby moving along a circular path around the water stirring component 200, which can both enhance the washing effect and prevent the clothes C from getting entangled.

[0131] Embodiment 2

[0132] like Figures 19 to 22 As shown, this embodiment further provides a washing tub assembly and a washing device including the washing tub assembly based on the above-mentioned embodiment 1.

[0133] Specifically, in this embodiment, the water stirring portion 240 of the water stirring member 200 includes a support column 210 extending upward from the top of the assembly portion 210-1, a water stirring rib 220 protruding radially or nearly radially on the side wall of the support column 210, and a water stirring plate 230 arranged at the top of the support column 210.

[0134] As a specific embodiment, the top surface of the water stirring plate 230 is an upwardly convex curved surface. In a preferred embodiment, a convex stirring portion 231 is provided on the curved surface for rubbing against the clothes above and stirring the washing water when washing at a higher water level, thereby enhancing the washing effect.

[0135] In this embodiment, the maximum radius Rmax of the water stirring portion 240 is also formed by the outer periphery of the water stirring plate 230. Different from the above-mentioned embodiment 1, in this embodiment, the radial dimension of the support column 210 increases with the increase of the height, thereby forming a guide surface for guiding the movement of clothes during washing.

[0136] Specifically, in this embodiment, the support column 210 extends from bottom to top and sequentially includes a first extension section 211 and a second extension section 212. The side wall of the first extension section 211 extends upward from the bottom 100-3 of the washing tub 100 and gradually approaches the tub wall of the washing tub 100. 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 largest, that is, extends to the lower surface of the water stirring tray 230.

[0137] 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.

[0138] 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 .

[0139] Furthermore, in this embodiment, the guide surface includes a first guide surface 213 formed by the side wall of the second extension section 212, which is used to guide the clothes rising from the central area of ​​the washing tub 100 to the bottom of the central area to move toward the periphery along the first guide surface 213 during washing. The guide surface also includes a second guide surface 214 formed by the side wall of the first extension section 211, which is used to guide the clothes to rise from the second guide surface 214 to the first guide surface 213 during washing.

[0140] Specifically, when washing, the washing device using the washing tub assembly described in this embodiment rotates relative to the washing tub 100, and the clothes can move along the bottom 100-3 of the washing tub 100 toward the central area, and then move upward along the first guide surface 213 to the second guide surface 214, and then move toward the periphery under the guidance of the second guide surface 214, and then fall in the area close to the wall of the washing tub 100, forming a circular path. On the one hand, the tumbling of the clothes in the tub can be 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.

[0141] 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.

[0142] 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.

[0143] 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.

[0144] 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.

[0145] 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.

[0146] 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.

[0147] 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.

[0148] It can be understood that the clothes moving along the bottom 100-3 of the barrel toward the central area can also be lifted along the outer edge of the water-stirring ribs 220 after contacting the water-stirring ribs 220. After moving to the maximum radius Rmax of the water-stirring part 240, they move toward the periphery under the action of inertia and centrifugal force, and finally fall to the bottom 100-3 of the barrel along the wall of the washing barrel 100.

[0149] As a preferred embodiment, in order to ensure that there is no cleaning dead corner between the lower end of the water-stirring rib 220 and the bottom 100-3 of the washing bucket 100, the side of the water-stirring rib 220 away from the axis (that is, the peripheral edge surface of the water-stirring rib 220) at least extends obliquely upward toward the periphery in the lower end area. At the lower end of the water-stirring rib 220, the acute angle α between the extension direction of the peripheral edge surface of the water-stirring rib 220 and the horizontal direction is not less than 20°, and preferably not less than 30°.

[0150] By setting the above-mentioned inclination angle, it can be ensured that the clothes can contact the lower end of the water stirring rib 220, avoiding the existence of a cleaning dead angle between the lower end of the water stirring rib 220 and the surface of the bottom 100-3 of the washing tub 100. At the same time, the outer peripheral edge surface of the water stirring rib 220 forms a curved surface that bends toward the barrel wall of the washing tub 100, which is conducive to forming a sufficiently large washing space below the maximum radius Rmax of the water stirring part 240, ensuring that the surface of the water stirring part 240 below the maximum radius Rmax can fully contact the clothes, and there is no cleaning dead angle.

[0151] As another preferred embodiment, Fig.19 and Fig. 22As shown, the maximum radius Rm of the water stirring portion 240, the radius R0 of the assembly portion 210-1, and the axial height difference h0 between the maximum radius Rmax of the water stirring portion 240 and the upper end of the assembly portion 210-1 satisfy: Rm≤4×R0, and h0≥Rm-R0.

[0152] Through the above-mentioned proportional relationship, the radial dimension of the water stirring member 200 as a whole is smaller than the axial dimension, and in the bottom area of ​​the water stirring member 200, that is, the area close to the barrel bottom 100-3, the water stirring member 200 is closer to extending upward rather than laterally. In this way, a larger angle can be formed between the side of the water stirring member 200 and the barrel bottom 100-3 of the washing barrel 100, which is conducive to fully exposing the area of ​​the barrel bottom 100-3 located outside the projection area of ​​the assembly portion to the washing space that can contact the clothes.

[0153] In a further embodiment of the present invention, the water stirring member 200, the stirring shaft 300 and the tub bottom 100-3 of the washing tub 100 have the following assembly relationship.

[0154] The assembly part 210-1 at the lower end of the water stirring member 200 is provided with an installation cavity with an open lower end, and the center of the barrel bottom 100-3 of the washing barrel 100 is provided with an installation part for installing the stirring shaft 300. The installation part includes a mounting groove 100-1 which is recessed from the surface of the barrel bottom 100-3, and the assembly part 210-1 is rotatably plugged into and matched with the mounting groove 100-1. The stirring shaft for driving the water stirring member 200 to rotate passes through the installation through hole on the bottom wall of the mounting groove 100-1, and is inserted into the installation cavity of the assembly part 210-1 from the lower end to be fixed, and the transmission is realized by key connection.

[0155] Furthermore, the aperture of the mounting through hole is consistent with the radial dimension of the mounting groove 100-1, or slightly smaller than the radial dimension of the mounting groove 100-1. The projection area of ​​the assembly portion 210-1 to the bottom 100-3 of the washing tub 100 completely overlaps with the area occupied by the mounting groove 100-1 on the bottom 100-3, so that the bottom 100-3 of the washing tub 100 can contact the clothes in the area outside the mounting groove 100-1, effectively preventing the problem of dirt accumulation on the surface of the bottom 100-3 of the washing tub 100.

[0156] The lower end of the water stirring rib 220 is at least flush with the upper end of the assembly portion 210-1, and preferably higher than the upper end of the assembly portion 210-1. A water seal structure 500 may be provided between the assembly portion 210-1 and the mounting groove 100-1 to prevent dirt from accumulating inside the mounting groove 100-1.

[0157] More preferably, 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.

[0158] 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.

[0159] It is understandable that in this embodiment, the lower end surface of the assembly part can be set to have a certain interval with the bottom of the washing bucket, or the difference between the outer diameter and the inner diameter of the assembly part can be set to be small enough, so that the outer surface of the assembly part (including the outer side wall and the lower end surface) and the area of ​​the bottom of the washing bucket located at the periphery of the installation through hole can contact the clothes, and the purpose of preventing the existence of cleaning dead corners can also be achieved. In the above scheme, the bottom of the washing bucket does not need to be provided with a groove structure, but can adopt a structure in which the upper side surface of the bottom is a plane, and preferably a structure in which the peripheral area of ​​the installation through hole is convex upward.

[0160] In this embodiment, the assembly part 210-1 at the lower end of the water stirring member 200 matches the size of the mounting part at the center of the bottom 100-3 of the washing bucket 100, that is, the groove structure. The assembly part 210-1 is mounted on the upper end of the stirring shaft 300, and the radial dimension of the assembly part 210-1 is only three to five times the diameter of the upper end of the stirring shaft 300, which is very small. In conjunction with the structure of the water stirring rib 220 above the assembly part 210-1, the area on the surface of the bottom 100-3 of the washing bucket 100 located on the periphery of the mounting groove 100-1 can be completely exposed, thereby avoiding the problem of dirt and grime between the water stirring member 200 and the washing bucket 100 to the greatest extent.

[0161] Embodiment 3

[0162] like Figures 19 to 21 As shown, this embodiment is a further limitation of the above-mentioned embodiment 2, and the water-stirring member 200 includes an assembly portion 210-1, and a water-stirring portion 240 extending upward from the assembly portion 210-1, and the assembly portion 210-1 is configured as a solid structure, and the water-stirring portion 240 is at least partially configured as a hollow structure, for example, the water-stirring portion 240 has a cavity arranged axially from the top end to the assembly portion 210-1.

[0163] 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.

[0164] 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.

[0165] 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.

[0166] 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.

[0167] Preferably, the water stirring ribs 220 are also configured as hollow structures.

[0168] Further preferably, the inner space of the water stirring rib 220 is connected to the cavity 210 - 9 inside the hollow column 210 - 8 .

[0169] 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 .

[0170] 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 .

[0171] 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 .

[0172] 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.

[0173] 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.

[0174] 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.

[0175] 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.

[0176] 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 .

[0177] 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.

[0178] The top of the flat plate portion and the top of the water stirring member 200 are in the same plane.

[0179] 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.

[0180] 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.

[0181] 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.

[0182] 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 .

[0183] 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.

[0184] Embodiment 4

[0185] like Figures 19 to 21 As shown, this embodiment is a further limitation of the above-mentioned embodiment 2 or 3, and the water stirring member 200 includes a mounting portion 210-1 and a water stirring portion 240 extending upward from the mounting portion 210-1. The stirring shaft 300 rotatably passes through the center of the barrel bottom 100-3 and is connected to the mounting portion 210-1.

[0186] 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.

[0187] 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.

[0188] 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.

[0189] 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 .

[0190] 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 .

[0191] 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 .

[0192] 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.

[0193] 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.

[0194] Furthermore, the diameter of the lower end of the fitting portion 210 - 1 is greater than the outer diameter of the sealing structure 120 .

[0195] In a specific embodiment, the difference between the diameter of the lower end 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.

[0196] 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.

[0197] Embodiment 5

[0198] like Fig.23 As shown, the difference between this embodiment and the above-mentioned embodiment 1 is that the assembly portion 210 - 1 is no longer the minimum radius section within a certain height range at the bottom of the water-stirring member 200 .

[0199] Specifically, in this embodiment, the maximum radius Rmax is formed on the water stirring portion 240 of the water stirring member 200 at a certain height from the assembly portion 210-1, and between the bottom end of the water stirring portion 240 and the maximum radius Rmax, the horizontal cross-sectional radius 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.

[0200] As a specific implementation, 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-section with the smallest radius is formed, and then gradually increases with increasing height until the maximum radius Rmax of the water stirring component 200 is formed.

[0201] 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.

[0202] 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.

[0203] Furthermore, since the assembly portion 210-1 has a larger radius, the lower end surface area of ​​the assembly portion 210-1 is larger. In order to avoid the existence of a space for dirt and grime between the lower end surface of the assembly portion 210-1 and the barrel bottom 100-3, there is a certain distance between the lower end surface of the assembly portion 210-1 and the inner surface of the barrel bottom 100-3, and the certain distance allows the clothes to contact the lower end surface of the assembly portion 210-1.

[0204] Specifically, in this embodiment, the assembly part 210-1 is mounted on the upper end of the stirring shaft 300. After being installed in place, the lower end surface of the assembly part 210-1 retains a certain distance from the inner surface of the barrel bottom 100-3, and the downward projection of the lower end surface of the assembly part 210-1 falls directly on the inner surface of the barrel bottom 100-3.

[0205] The projection falls directly on the inner surface of the barrel bottom 100-3, that is, there is no obstruction in the process of the lower end surface of the assembly portion 210-1 being projected downward to the inner surface of the barrel bottom 100-3 of the washing barrel 100. Specifically, between the lower end surface 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 large size extending radially along the washing barrel 100 are arranged thereon.

[0206] By adopting the above structure, during the washing process, the lower end surface of the assembly part 210-1 and the inner surface of the barrel bottom 100-3, especially the area near the center of the inner surface of the barrel bottom 100-3 can be completely exposed in the washing space and come into contact with the clothes during washing, thereby avoiding the problem of dirt and grime hiding between the lower end surface of the assembly part 210-1 and the barrel bottom 100-3.

[0207] In a preferred scheme of the present embodiment, the barrel bottom 100-3 has a raised surface at the center, so that 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 barrel bottom 100-3 close to the center and the area of ​​the side wall of the stirring shaft 300 close to the barrel bottom 100-3, thereby making it more conducive to the contact between the above-mentioned areas and the clothes and preventing the adhesion and accumulation of dirt.

[0208] This embodiment has the above-mentioned specific structure. When the washing device uses a water level lower than the maximum radius Rmax of the water stirring member 200 for washing, the water stirring member 200 rotates relative to the washing tub 100 to drive the clothes to follow the water flow. A specific movement path is as follows:

[0209] The clothes move toward the center along the bottom 100-3 of the washing tub 100 in the bottom area, move 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 of the assembly part 210-1; the clothes here move toward the periphery along the lower end surface of the assembly part 210-1, and after moving to a point beyond the coverage of the lower end surface of the assembly part 210-1, 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, a movement trend toward the central axis is generated, and then after moving obliquely upward toward the central axis for a certain distance, the clothes 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 tub 100 to the barrel bottom 100-3.

[0210] In this embodiment, 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 area of ​​the maximum radius Rmax, 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 enhance the agitation of the washing water in the bottom area of ​​the washing barrel 100, thereby improving the washing effect to a certain extent. By increasing the installation height of the water stirring member 200, a sufficient spacing distance can be reserved between the lower end surface of the assembly part 210-1 and the inner surface of the barrel bottom 100-3, so that the clothes can be in contact with the lower end surface of the assembly part 210-1, and the water flow intensity of the washing water in the bottom area of ​​the washing barrel 100 is enhanced, which can well wash the lower end surface of the assembly part 210-1 and the inner surface of the barrel bottom 100-3 to prevent dirt from adhering.

[0211] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Although the utility model has been disclosed as a preferred embodiment as above, it is not used to limit the utility model. Any technician familiar with this patent can make some changes or modify the technical content suggested above into an equivalent embodiment with equivalent changes without departing from the scope of the technical solution of the utility model. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the content of the technical solution of the utility model still falls within the scope of the solution of the utility model.

Claims

1. A washing tub assembly of a washing device, comprising a washing tub and a water stirring member rotatably disposed inside the washing tub, characterized in that: The water stirring member includes a fitting portion having a certain length along the axial direction of the washing tub, and a water stirring portion connected to the fitting portion; The assembly portion is located between the bottom surface of the washing tub and the water stirring portion of the water stirring member, and the radial dimension of the assembly portion along the radial direction of the washing tub is smaller than the maximum radial dimension of the water stirring member; the bottom of the water stirring member does not have a disc-shaped stirring portion.

2. The washing tub assembly of the washing equipment according to claim 1, characterized in that: The radius of the horizontal section of the water stirring part at a certain height from the upper end of the assembly part is the maximum radius of the water stirring component, and a washing space is formed between the height of the horizontal section with the largest radius and the bottom of the washing tub; the area of ​​the water stirring part below the horizontal section with the largest radius is the first clothing contact surface.

3. The washing tub assembly of the washing equipment according to claim 2, characterized in that: A mounting portion is provided at the center of the bottom of the washing tub, and a stirring shaft for driving the water stirring member to rotate rotatably passes through the mounting portion; the interior of the mounting portion is hollow and is sleeved on the upper end of the stirring shaft; The assembly portion is projected onto the bottom of the washing tub to form a projection area, the projection area substantially coincides with the installation portion, and the surface of the bottom of the tub outside the projection area is a second clothing contact surface constituting the washing space.

4. The washing tub assembly of the washing equipment according to claim 2, characterized in that: The distance between the horizontal cross section with the largest radius and the upper end of the assembly portion is greater than the extension length of the assembly portion along the axial direction of the washing tub.

5. The washing bucket assembly of the washing equipment according to any one of claims 1 to 4, characterized in that: The radius of the assembly portion is smaller than or equal to the radius of any horizontal cross section of the water stirring portion in an area close to the assembly portion.

6. The washing bucket assembly of the washing equipment according to any one of claims 2 to 4, characterized in that: Below the horizontal cross section with the largest radius, the radius of the horizontal cross section of the water stirring portion increases gradually or stepwise upward along the axis, or the radius of the horizontal cross section of the water stirring portion increases and decreases alternately upward along the axis.

7. The washing bucket assembly of the washing equipment according to any one of claims 2 to 4, characterized in that: The horizontal cross section with the largest radius is formed at the top of the water stirring portion; Alternatively, the horizontal section with the largest radius is formed in the middle area of ​​the water stirring portion, and above the horizontal section with the largest radius, the side surface of the water stirring portion extends upward and gradually or stepwise approaches the axis; Alternatively, along the axial direction of the washing tub, the water stirring portion has a plurality of horizontal cross sections with the largest radius distributed at intervals, and between two adjacent horizontal cross sections with the largest radius, the side surface of the water stirring portion extends upward, first tilts toward the axis, and then tilts toward the periphery.

8. The washing bucket assembly of a washing device according to any one of claims 2 to 4, characterized in that: The water stirring portion includes a support column extending axially from the upper end of the assembly portion, and a water stirring structure arranged on the side wall of the support column; the water stirring structure is at least arranged in a region lower than the horizontal cross section with the largest radius.

9. The washing tub assembly of the washing equipment according to claim 8, characterized in that: The water stirring structure includes a water stirring rib protruding from the side wall of the support column and extending axially, and there is a certain distance between the lower end of the water stirring rib and the bottom of the washing bucket, or the lower end of the water stirring rib extends to the side wall of the assembly part; the side of the water stirring rib away from the axis extends obliquely upward toward the periphery at least in the lower end area.

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

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