Washing equipment

Abstract

The invention belongs to the technical field of washing equipment, and discloses washing equipment which comprises a washing barrel and a water stirring component rotatably arranged in the washing barrel, the water stirring component extends upwards from the barrel bottom of the washing barrel, the diameter of the water stirring component is the largest at the position away from the barrel bottom by a certain distance, and the diameter of the water stirring component is larger than that of the washing barrel. The certain distance enables clothes to be washed below the position where the diameter of the water stirring component is maximum. According to the washing machine, clothes and water flow are stirred through relative rotation generated between the water stirring component and the washing barrel, the clothes in the barrel are washed, and the clothes can be washed below the position, with the largest diameter, of the water stirring component, so that the clothes make contact with the surface, facing the barrel bottom, of the water stirring component; 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, meanwhile, the relative acting force between clothes and the water stirring component can be reduced, and then the energy consumption of a motor used for driving the water stirring component is reduced.

Description

[0001] This application is a divisional application of Chinese Patent Application No. 202311740409.2.

[0002] Original filing date: December 15, 2023

[0003] Original application number: 202311740409.2

[0004] Original invention title: A washing tub assembly of a washing device and a washing device Technical field

[0005] The present invention belongs to the technical field of washing devices, and specifically relates to a washing device. Background art

[0006] As a convenient clothing cleaning 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 them, pulsator washing machines are popular among users due to their good cleaning effect.

[0007] A pulsator washing machine usually includes a washing inner tub and a pulsator, and the pulsator is arranged at the bottom of the washing inner tub. When the pulsator washing machine works, the rotation of the pulsator drives the washing water in the inner tub to rotate, so as to realize the washing of the clothes to be cleaned in the inner tub. The existing pulsator is usually a flat circular pulsator. During washing, dirt, lint and other impurities on the clothes are likely to accumulate in the gap between the bottom surface of the pulsator and the inner tub, and cannot be effectively cleaned only by flushing. Moreover, dirt and lint are prone to breed bacteria in a humid environment for a long time, bringing a bad user experience to users. If you want to clean it thoroughly, you need to remove the pulsator and brush the dirt in the gap, which is a relatively complicated operation and further deteriorates the user experience.

[0008] In the prior art, a stirrer washing machine is also proposed, which uses a stirrer with a certain size along the axial direction of the washing inner tub to replace the pulsator in the pulsator washing machine. However, as Figure 1 shown, the stirrer 1 in the existing stirrer washing machine often has an "inverted T" shape, and is composed of an axial stirrer 2 and a radial stirrer 3. The radial stirrer 3 is arranged at the bottom of the washing tub 4 and has a relatively large size in the radial direction. The clothes Y can only be washed in the area above the radial stirrer 3 in the tub, and still cannot solve the problem that the gap between the stirrer 1 and the bottom of the tub is easy to hide dirt and is difficult to clean. In addition, some stirrer washing machines directly install a columnar stirring rod on the pulsator at the bottom of the tub, and dirt and bacteria are still likely to accumulate between the pulsator and the bottom of the tub.

[0009] In view of this, the present invention is specifically proposed. Summary of the invention

[0010] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a washing device that can avoid the problem of dirt accumulation between the water-stirring member and the bottom of the washing tub.

[0011] To solve the above technical problem, the basic concept of the technical solution adopted by the present invention is:

[0012] A washing device, comprising:

[0013] A washing tub;

[0014] A water-stirring member, disposed inside the washing tub, having a maximum diameter at a certain height;

[0015] The lowest washing water level in the washing tub is lower than the maximum diameter, and the highest washing water level is higher than the maximum diameter.

[0016] Further, the top of the water-stirring member is located between the lowest washing water level and the highest washing water level.

[0017] Further, in the washing tub, a first washing space is formed below the maximum diameter of the water-stirring member;

[0018] And / or, in the washing tub, a second washing space is formed above the maximum diameter of the water-stirring member.

[0019] Further, the water-stirring member includes:

[0020] Support columns, having a certain height along the axial direction of the washing tub;

[0021] A water-stirring disk, disposed on the support columns, the outer periphery of the water-stirring disk forming the maximum diameter;

[0022] Preferably, the water-stirring disk is disposed at the upper end of the support columns.

[0023] Further, below the water-stirring disk, the bottom of the washing tub, the side wall of the support columns, and the barrel wall of the washing tub together form a first washing space;

[0024] And / or, a second washing space is formed above the water-stirring disk.

[0025] Further, the lower side of the water-stirring disk has a first guiding surface extending from the area near the support columns to the outer periphery, for guiding the clothes in the first washing space to move along the first guiding surface to the outer periphery;

[0026] Preferably, the first guiding surface extends horizontally or obliquely upward from the area near the center of the water-stirring disk to the outer periphery.

[0027] Further, a second guiding surface extending upward is formed on the side surface of the supporting column for guiding the clothes in the first washing space to move upward to the first guiding surface;

[0028] Preferably, when the water-stirring member rotates, it can drive the clothes in the first washing space to move from the bottom of the washing tub towards the central area, and then move upward along the second guiding surface.

[0029] Further, the first guiding surface extends obliquely upward from the upper end of the second guiding surface to the lower side surface of the water-stirring disc;

[0030] Preferably, the extending end of the first guiding surface coincides with the outer periphery of the water-stirring disc.

[0031] Further, the top of the water-stirring disc is higher than the maximum diameter position;

[0032] Preferably, the highest washing water level is higher than the top of the water-stirring disc.

[0033] Further, water-stirring ribs are convexly provided on the side wall of the supporting column, and the water-stirring ribs have a certain extension length along the axial direction of the washing tub;

[0034] Preferably, the water-stirring ribs protrude along the radial direction of the washing tub, or the protruding direction forms an angle less than 90° with the radial direction of the washing tub;

[0035] Preferably, a plurality of water-stirring ribs are arranged at intervals along the circumferential direction of the supporting column;

[0036] Preferably, the upper end of the water-stirring rib is connected to the first guiding surface on the lower side of the water-stirring disc.

[0037] Further, the supporting column is arranged with a variable diameter along the axial direction, including a connected first extension section and a second extension section;

[0038] The side wall of the first extension section extends upward from the bottom of the washing tub, and the side wall of the second extension section extends from the upper end of the first extension section towards the outer periphery and slopes upward, with the end connected to the water-stirring disc.

[0039] Further, the supporting column has the same diameter along the axial direction, and water-stirring ribs are convexly provided on the side wall of the supporting column, and the size of the water-stirring ribs along the radial direction of the washing tub increases with the increase of height.

[0040] Further, the height difference h between the maximum diameter position of the water-stirring member and the bottom of the washing tub is more than 10 cm.

[0041] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art.

[0042] In the present invention, the maximum diameter of the water-stirring member is set at a certain distance from the bottom of the washing tub, so that the clothes can be washed below the maximum diameter of the water-stirring member. The surface of the water-stirring member below the maximum diameter can contact the clothes in the tub. By using the friction between the clothes and the surface of the water-stirring member, the attachment of lint or other dirt on the surface of the water-stirring member can be prevented, effectively avoiding the problem that it is easy to hide dirt between the water-stirring member and the bottom of the tub and difficult to clean, and improving the user experience. At the same time, since the clothes can be washed below the maximum diameter of the water-stirring member and will not cover the water-stirring member in a large area, the energy consumption of the motor used to drive the water-stirring member can be reduced.

[0043] In the present invention, the water-stirring member includes a support column and water-stirring ribs. The support column is used for drivingly connecting with the driving device of the washing equipment, so that the water-stirring member can be driven by the driving device to rotate in the washing tub. The water-stirring ribs play a role in stirring the clothes and water in the tub when the water-stirring member rotates. The support column is set to include a first extension section and a second extension section. In particular, the side wall of the second extension section extends outward and upward obliquely. On the one hand, it can guide the clothes to move outward here, strengthening the effect of driving the clothes to flip in the tub during the washing process, thereby enhancing the washing effect and reducing the entanglement of the clothes. On the other hand, it makes it easier for the clothes to contact the side wall of the second extension section, preventing the attachment of lint and dirt.

[0044] In the present invention, the maximum diameter of the water-stirring member is set at a certain distance from the mouth of the washing tub. Washing can be carried out at a water level higher than the height where the maximum diameter of the water-stirring member is located, and the clothes can be washed above the maximum diameter of the water-stirring member. At the same time, a larger surface area of the water-stirring member can contact and rub against the clothes, enhancing the washing effect.

[0045] The following further describes in detail the specific embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0047] Figure 1 is a schematic structural diagram of a stirring washing machine in the prior art;

[0048] Figure 2 is a schematic diagram of a water-stirring member with a certain structure in Embodiment 1 of the present invention applied in a washing equipment;

[0049] Figure 3It is a schematic diagram of the relative position between the water-stirring member and the clothes in the embodiment of the present invention;

[0050] Figure 4 It is a schematic diagram of the cross-section taken of the water-stirring member in the embodiment of the present invention;

[0051] Figure 5 It is a schematic diagram of the diameter of the water-stirring member with a circular cross-section in the embodiment of the present invention;

[0052] Figure 6 It is a schematic diagram for determining the diameter of the water-stirring member with an oval cross-section in the embodiment of the present invention;

[0053] Figure 7 It is a schematic diagram for determining the diameter of the water-stirring member with a triangular cross-section in the embodiment of the present invention;

[0054] Figure 8 It is a schematic diagram for determining the diameter of the water-stirring member with a square cross-section in the embodiment of the present invention;

[0055] Figure 9 It is a schematic diagram for determining the diameter of the water-stirring member with a pentagonal cross-section in the embodiment of the present invention;

[0056] Figure 10 It is a schematic diagram for determining the diameter of the water-stirring member with an irregular-shaped cross-section in the embodiment of the present invention;

[0057] Figure 11 It is a schematic diagram for determining the diameter of the water-stirring member with another irregular-shaped cross-section in the embodiment of the present invention;

[0058] Figure 12 It is a schematic diagram of the movement path of the clothes during low-water-level washing in the embodiment of the present invention;

[0059] Figure 13 It is a schematic diagram of the movement path of the clothes during high-water-level washing in the embodiment of the present invention;

[0060] Figure 14 It is a cross-sectional view of the washing tub assembly in Embodiments 2 to 4 of the present invention;

[0061] Figure 15 It is a schematic diagram of the structure of the water-stirring member in Embodiments 2 to 4 of the present invention;

[0062] Figure 16 It is the present invention Figure 14 An enlarged schematic diagram of part A.

[0063] In the figure: 1. Stirrer; 2. Axial stirrer; 3. Radial stirrer; 4. Washing tub; Y. Clothes;

[0064] 100, washing tub; 110, dehydration shaft; 120, sealing structure; 200, water agitating 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 guiding surface; 214, second guiding surface; 220, water agitating rib; 230, water agitating disk; 231, stirring part; 300, stirring shaft; Dmax, maximum diameter position; C, clothing.

[0065] It should be noted that these drawings and text descriptions are not intended to limit the scope of the concept of the present invention in any way, but to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed implementation manners

[0066] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0067] In the description of the present invention, it should be noted that the orientation or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention.

[0068] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, 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 directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0069] As Figures 2 to 16 shown, the embodiments of the present invention provide a washing tub assembly of a washing device and a washing device having the washing tub assembly. Among them, the washing device can be a washing machine, a washing and drying integrated machine, a nursing machine, or other washing devices with a clothing cleaning function.

[0070] 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 also includes a driving device, such as a driving motor, which is transmission-connected to the washing tub 100 and the water stirring member 200, respectively.

[0071] 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 of the washing tub 100, and is used to drive the washing tub 100 to rotate.

[0072] 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.

[0073] 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.

[0074] Embodiment 1

[0075] 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.

[0076] Specifically, the washing tub assembly of this embodiment includes a washing tub 100 and a water stirring member 200 rotatably disposed inside the washing tub 100. The water stirring member 200 extends upward from the bottom of the washing tub 100, and has the largest diameter at a certain distance from the bottom of the tub, and the certain distance enables the clothes C to be washed below the position where the diameter Dmax of the water stirring member 200 is the largest.

[0077] In this embodiment, the water-stirring member 200 and the washing tub 100 have the above-mentioned matching structure. Compared with traditional pulsator washing machines or agitator washing machines with radial agitators, there is a washing space below the maximum diameter Dmax of the water-stirring member 200. The washing space is jointly formed by the surface of the water-stirring member 200 below its maximum diameter Dmax, the barrel wall of the washing tub 100, and the bottom of the washing tub 100. The laundry C can be washed in this washing space, so that the surface of the water-stirring member 200 below its maximum diameter Dmax and the bottom of the washing tub 100 can contact the laundry C in the tub. During the washing process, the friction between the laundry C and the surface of the water-stirring member 200 can prevent lint or other dirt from adhering to the surface of the water-stirring member 200, effectively avoiding the problem that it is easy to accumulate dirt between the water-stirring member 200 and the bottom of the tub and difficult to clean, and improving the user experience.

[0078] It should be noted that in the embodiment of the present invention, the diameter of the water-stirring member 200 refers to taking a cross-section along the direction perpendicular to its rotation axis (see Figure 4 ), and the distance between the point farthest from the rotation center and the rotation center on the obtained cross-section is twice the distance.

[0079] Specifically, if the cross-section of the water-stirring member 200 is Figure 5 the shown circle, then the diameter is the diameter D of the circular cross-section. If the cross-section of the water-stirring member 200 is Figures 6 to 11 the shown non-circle, then the diameter is twice the distance R from the point farthest from the rotation center to the rotation center (i.e., the position marked by "×" in the figure) on the cross-section.

[0080] As a specific implementation manner, in this embodiment, the distance h from the maximum diameter Dmax of the water-stirring member 200 to the bottom of the tub is more than 10 cm, so as to ensure that the laundry C can be washed below the maximum diameter Dmax.

[0081] In a further aspect of this embodiment, there is also a certain distance in the height direction between the maximum diameter Dmax of the water-stirring member 200 and the tub opening of the washing tub 100, so that the washing water level can be higher than the maximum diameter Dmax of the water-stirring member 200, enabling the laundry C to be washed above the position where the maximum diameter Dmax of the water-stirring member 200 is located.

[0082] In the above solution, the laundry C can be accommodated for washing both above and below the maximum diameter Dmax of the water-stirring member 200 in the washing tub 100. In this way, the outer surface of the water-stirring member 200 can basically contact the laundry C being washed, generating friction with the laundry C, and enhancing the washing effect by increasing the surface area in contact with the laundry C.

[0083] On the other hand, during the washing process of a traditional agitator washing machine, the clothes cover the upper surface of the agitator in a large area and come into contact with it. The relative rotation between the agitator and the barrel body generates a relatively large force on the clothes, which easily drives the clothes to entangle. In contrast, during the washing process of the water stirring member 200 in this embodiment, when washing with a water level lower than the height where the maximum diameter Dmax is located, the clothes C only come into contact with the side surface of the water stirring member 200. The clothes C are mainly driven to move in the barrel by the water flow impact generated by the water stirring member 200 stirring the washing water. The force directly exerted on the clothes C by the water stirring member 200 is greatly reduced, which also has the effect of preventing the clothes from entangling. If washing with a water level higher than the height where the maximum diameter Dmax is located, although part of the clothes C are washed above the maximum diameter Dmax, since the maximum diameter of the water stirring member 200 in this embodiment is much smaller than the diameter of the washing barrel 100, rather than the agitator diameter in an agitator washing machine being relatively close to the barrel diameter, the contact area between the water stirring member 200 and the clothes C in this embodiment is significantly smaller than the contact area between the agitator and the clothes in an agitator washing machine, and the possibility of the clothes C entangling is greatly reduced.

[0084] Furthermore, since the contact area between the clothes C and the water stirring member 200 is reduced, the friction force between the clothes C and the water stirring member 200 is thereby reduced, which helps to reduce the wear of the water stirring member 200 on the clothes and can also reduce the motor energy consumption when the driving device drives the water stirring member 200 to rotate.

[0085] In this embodiment, the side surface of the water stirring member 200 is arranged such that as the height of the rotation axis increases, the distance between the side surface of the water stirring member 200 and the barrel wall of the washing barrel 100 remains constant, or gradually or stepwise changes.

[0086] As a specific implementation manner, as Figure 2 shown, the water stirring member 200 has a unique maximum diameter Dmax in the height direction. Further, at least below the maximum diameter Dmax, as the height increases, the distance between the side surface of the water stirring member 200 and the barrel wall of the washing barrel 100 decreases as the height increases.

[0087] It should be noted that the unique maximum diameter Dmax can refer to the water stirring member 200 having a maximum diameter Dmax at a specific height position, or the water stirring member 200 having a maximum diameter Dmax within a certain continuous height range.

[0088] In a specific scheme, as Figure 2As shown, the maximum diameter Dmax of the water-stirring member 200 is close to the top of the water-stirring member 200, but there is a certain distance from the top of the water-stirring member 200. Specifically, the upper side surface of the water-stirring member 200 at its maximum diameter Dmax is a curved surface that bulges upward, and the highest point of the curved surface forms the top of the water-stirring member 200.

[0089] In a further solution of this embodiment, the height where the maximum diameter Dmax of the water-stirring member 200 is located is set between the highest water level and the lowest water level of the washing device. In this way, when the washing device washes with different water levels, the rotation of the water-stirring member 200 can generate different water flow patterns to drive the movement of the clothes C for washing. In particular, as a specific implementation, below the maximum diameter Dmax of the water-stirring member 200, the clothes C can move along an annular path for washing.

[0090] The above-mentioned annular path refers to moving from the bottom area of the washing tub 100 towards the center, being lifted by the water-stirring member 200 to a position close to the maximum diameter Dmax of the water-stirring member 200, and then moving outward and falling.

[0091] See Figure 12 and Figure 13 , as a specific solution, the annular path along which the clothes move below the maximum diameter Dmax of the water-stirring member 200 during washing includes: the clothes moving from the bottom of the washing tub 100 towards the central area, moving upward along the side surface of the water-stirring member 200 in the central area to below the maximum diameter Dmax and then moving outward, and moving downward in the area close to the wall of the washing tub 100.

[0092] In a further solution of this embodiment, the water-stirring member 200 includes a support column 210 coaxially arranged with the washing tub 100, and water-stirring ribs 220 protruding from the side wall of the support column 210. Among them, the support column 210 is used for driving connection with the driving device of the washing device, so that the water-stirring member 200 can rotate under the drive of the driving device. The water-stirring ribs 220 rotate in the washing tub 100 with the water-stirring member 200, and play a role in stirring the clothes C and the water flow in the tub. The bottom of the washing tub 100, the side wall of the support column 210, and the wall of the washing tub 100 together form a space that can accommodate the clothes C to be washed during washing, and the clothes C can move along the above-mentioned annular path in the space.

[0093] When the washing tub assembly of this embodiment is applied to a washing device, in a specific implementation, as Figure 12 shown, when operating at a low water level W1 lower than the maximum diameter Dmax of the water-stirring member 200, the clothes can move along the above-mentioned annular path in the water.

[0094] Specifically, during the washing process, relative rotation occurs between the water-stirring member 200 and the washing tub 100. The laundry moves along the path indicated by the arrow in the figure within the space below the maximum diameter Dmax of the water-stirring member 200. That is, the laundry moves from the bottom of the washing tub 100 towards the central area and converges. In the central area, it is lifted along the side wall of the support column 210 or the outer peripheral edge of the water-stirring rib 220 to below the maximum diameter Dmax, then moves towards the periphery, and then falls to the bottom of the tub in the area near the wall of the washing tub 100, forming a circular motion pattern.

[0095] As Figure 13 shown, when operating at a high water level W2 higher than the maximum diameter Dmax of the water-stirring member 200, in the area below the maximum diameter Dmax of the water-stirring member 200, the laundry moves along the above-mentioned circular path in the water; while in the area above the maximum diameter Dmax of the water-stirring member 200, the laundry moves approximately along the circumferential direction of the washing tub 100.

[0096] Specifically, during the washing process, relative rotation occurs between the water-stirring member 200 and the washing tub 100. In the area below the maximum diameter Dmax of the water-stirring member 200, the movement path of the laundry is basically the same as the movement path under the low water level W1. While in the area above the maximum diameter Dmax of the water-stirring member 200, the laundry moves in a forward and reverse alternating manner along the circumferential direction of the washing tub 100 as the water-stirring member 200 rotates forward and backward alternately.

[0097] In the above solution, when different washing water levels are adopted, the water-stirring member 200 can drive the laundry in the tub to move in different ways for washing, providing a more diverse selection of washing methods. Moreover, in the area below the maximum diameter Dmax of the water-stirring member 200, since the laundry moves along a circular path, on the one hand, it can strengthen the tumbling of the laundry and enhance the washing effect, and on the other hand, it can avoid the problem that the existing pulsator washing machine easily drives the laundry to converge towards the center, resulting in entanglement of the laundry.

[0098] In this embodiment, 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 opposite to the rotation direction, which can achieve an effective stirring effect.

[0099] More specifically, a plurality of water stirring ribs 220 are circumferentially and spacedly arranged on the side wall of the support column 210, and the plurality of water stirring ribs 220 are preferably symmetrically arranged with respect to the rotation axis. The clothing C can be washed in the interval area between two adjacent water stirring ribs 220, so as to contact the two side surfaces of the water stirring ribs 220 and the area of the side wall of the support column 210 located between the two water stirring ribs 220, avoiding the cleaning dead corners on the side wall of the support column 210 where dirt is likely to adhere. At the same time, during washing, the clothing C moving from the bottom of the washing tub 100 towards the central area is lifted along the side wall of the support column 210 to below the maximum diameter Dmax of the water stirring member 200, and then moves outward and falls after that, forming an annular path.

[0100] For the water stirring member 200 having the above structure, the side surface of the water stirring member 200 includes both the side wall of the support column 210 and the surface of the water stirring rib 220 farthest from the rotation axis, and the diameter of the water stirring member 200 is twice the distance between the farthest point from the rotation axis on the water stirring rib 220 and the rotation axis.

[0101] In the above structure, the diameter of the water stirring member 200 specifically refers to taking a cross-section of the water stirring member 200 in the horizontal direction. On the obtained cross-section, it is twice the distance from the farthest point from the axis on the water stirring rib 220 to the central axis. When the number of water stirring ribs 220 is even, the length of the connection line between the farthest points from the axis of the two opposite water stirring ribs 220 is the diameter of the water stirring member 200 at that position. When the number of water stirring ribs 220 is odd, there are no opposite water stirring ribs 220. At this time, the cross-section of the water stirring part 240 taken in the horizontal direction does not form an axisymmetric figure, but the diameter of the horizontal cross-section of the water stirring part 240 is still twice the distance from the farthest point from the axis on the water stirring rib 220 to the central axis.

[0102] As a specific solution of this embodiment, as Figure 2 shown, below the maximum diameter Dmax of the water stirring member 200, the support column 210 has or substantially maintains the same diameter along the axial direction.

[0103] Among them, the support column 210 having the same diameter along the axial direction means that the side wall of the support column 210 extends upward along the vertical direction until it reaches the position where the maximum diameter Dmax of the water stirring member 200 is located. And the support column 210 substantially maintaining the same diameter along the axial direction can be that the side wall of the support column 210 extends upward along a straight line close to the vertical direction until it reaches the position where the maximum diameter Dmax of the water stirring member 200 is located.

[0104] The water stirring ribs 220 protrude from the side wall of the support column 210 and have a certain height along the axial direction of the washing tub 100. The dimension of the water stirring ribs 220 in the radial direction of the washing tub 100 increases with the increase of the height, so as to form a structure in which the distance between the side surface of the water stirring member 200 and the barrel wall of the washing tub 100 decreases with the increase of the height.

[0105] Furthermore, the lower end of the water stirring ribs 220 is spaced from the bottom of the washing tub 100. Specifically, the bottom of the support column 210 has an assembly part for connecting the stirring shaft 300. The outer peripheral edge of the water stirring ribs 220 extends obliquely upward from a certain interval above the upper end of the assembly part on the side wall of the support column 210, and the inclination angle remains constant or gradually changes, and finally extends to the height where the maximum diameter Dmax of the water stirring member 200 is located. There is no other structure extending in the radial direction of the washing tub 100 between the lower end of the water stirring ribs 220 and the assembly part, which will not cover the bottom of the washing tub 100, ensuring that there is basically no area on the bottom of the washing tub 100 where clothes cannot be contacted.

[0106] In the first specific embodiment, a groove structure with an open upper side is provided on the bottom of the washing tub 100. The stirring shaft 300 extends into the inner side of the washing tub 100 through an installation through hole opened on the bottom wall of the groove structure. The assembly part is rotatably inserted and matched with the groove structure. The lower end of the water stirring ribs 220 is not lower than the upper end of the assembly part, so that the lower end surface of the water stirring ribs 220 can contact the clothes. At the same time, since there is no other structure extending in the radial direction of the washing tub between the lower end of the water stirring ribs 220 and the assembly part, the area of the bottom of the washing tub 100 located outside the groove structure can also contact the clothes, preventing the attachment of lint and dirt.

[0107] In the second specific embodiment, there is an interval between the lower end surface of the assembly part and the bottom of the washing tub. The stirring shaft 300 passes through an installation through hole opened on the bottom of the washing tub 100 and is connected to the assembly part. The interval enables the lower end surface of the assembly part and the area of the bottom of the washing tub 100 located outside the installation through hole to contact the clothes, preventing the existence of cleaning dead corners where dirt is likely to adhere.

[0108] In the third specific embodiment, the stirring shaft 300 extends into the washing tub 100 through an installation through hole on the bottom of the washing tub 100. The assembly part is sleeved on the upper end of the stirring shaft 300, and there is a very small gap between the lowermost end of the assembly part and the bottom of the washing tub 100. The difference between the outer diameter and the inner diameter of the bottom of the assembly part is small enough so that the outer surface of the assembly part can contact the clothes during the washing process, and the area of the bottom of the washing tub 100 located outside the installation through hole can contact the clothes, preventing the existence of cleaning dead corners where dirt is likely to adhere. Preferably, the outer side wall of the assembly part and the side wall of the stirring shaft 300 are smoothly transitioned, further avoiding the possibility of the existence of cleaning dead corners.

[0109] For the solution where the maximum diameter Dmax of the water-stirring member 200 is located at or near the top of the water-stirring member 200, as a specific embodiment, as Figure 2 shown, the water-stirring member 200 further includes a water-stirring disk 230. The water-stirring disk 230 is connected to the upper end of the support column 210, and the outer periphery of the water-stirring disk 230 forms the maximum diameter Dmax of the water-stirring member 200. The upper end of the water-stirring rib 220 is connected to the lower side surface of the water-stirring disk 230, preventing a dead angle where the water-stirring rib 220 and the water-stirring disk 230 cannot contact the clothing C, which is prone to dirt accumulation.

[0110] Furthermore, the water-stirring member 200 of this embodiment forms a guiding surface extending outwardly below the maximum diameter Dmax. During washing, the clothing C lifted below the maximum diameter Dmax of the water-stirring member 200 moves along the guiding surface towards the outer periphery. More specifically, in this embodiment, the guiding surface includes the lower side surface of the water-stirring disk 230.

[0111] Preferably, a transition curved surface with a smooth transition is provided between the upper end of the side wall of the support column 210 and the lower side surface of the water-stirring disk 230. More preferably, a fillet transition is provided between the two side surfaces of the water-stirring rib 220 and the lower side surface of the water-stirring disk 230. In this way, the dead angles on the water-stirring member 200 that are difficult to clean are further reduced.

[0112] As a specific solution, in this embodiment, the side of the upper end of the water-stirring rib 220 away from the support column 210 coincides with the outer periphery of the water-stirring disk 230, so that the dimension of the water-stirring rib 220 along the radial direction of the washing tub 100 is maximized as much as possible, which can strengthen the stirring force of the washing water and enhance the washing effect.

[0113] When the washing equipment with the washing tub assembly described in this embodiment washes the clothing C, by controlling the relative rotation of the water-stirring member 200 and the washing tub 100, the clothing C can be driven to move along an annular path below the maximum diameter Dmax of the water-stirring member 200 for washing.

[0114] 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 flowing trend along the radial direction of the washing tub 100, and then the clothing C can be driven to move from the bottom of the washing tub 100 towards the central area. The clothing C converging towards the center contacts the side surface of the water-stirring member 200 and is lifted upward under the rotation of the water-stirring member 200 until it moves to the lower side of the maximum diameter Dmax of the water-stirring member 200. Below the maximum diameter Dmax of the water-stirring member 200, the upward movement trend of the water flow and the clothing C is blocked, and then they move along the guiding surface below the maximum diameter Dmax of the water-stirring member 200 towards the outer periphery. Finally, in the area near the wall of the washing tub 100, or after contacting the wall of the washing tub 100, they descend back to the bottom of the tub under the action of gravity and the driving of the water flow.

[0115] In this embodiment, the water-stirring member 200 installed in the washing tub 100 forms a maximum diameter Dmax at a certain distance from the bottom of the tub, so that the clothes C can be washed below the maximum diameter Dmax. Most of the bottom surface of the washing tub 100 is exposed to the washing water and can contact the clothes C to be washed. During the washing process, the clothes C can contact the bottom of the washing tub 100 and the outer surface of the water-stirring member 200 below the maximum diameter Dmax, generating friction, effectively avoiding the problem of cleaning dead corners between the water-stirring member 200 and the washing tub 100, where lint and dirt are likely to accumulate.

[0116] On the other hand, during the washing process, the water-stirring member 200 can drive the clothes C to converge towards the center at the bottom of the tub, then be lifted to a certain height, and then guide the clothes C to move outward and fall, so as to move along an annular path around the water-stirring member 200, which can not only enhance the washing effect but also prevent the clothes C from getting entangled.

[0117] Embodiment Two

[0118] As Figure 14 and Figure 15 shown, this embodiment provides a washing tub assembly of a washing device and a washing device having the washing tub assembly. The difference between the washing tub assembly provided in this embodiment and the first embodiment above is that: below the maximum diameter Dmax of the water-stirring member 200, the distance between the side wall of the support column 210 and the barrel wall of the washing tub 100 decreases with the increase in height.

[0119] In this embodiment, raised water-stirring ribs 220 are also provided on the side wall of the support column 210. However, different from the first embodiment above, the dimension of the water-stirring ribs 220 along the radial direction of the washing tub 100 can remain constant with the increase in height, or can also change gradually or step by step. By the distance between the side wall of the support column 210 and the barrel wall of the washing tub 100 decreasing with the increase in height, the distance between the side surface of the water-stirring member 200 and the barrel wall of the washing tub 100 shows a decreasing trend with the increase in height. The same as in the first embodiment above, in this embodiment, the clothes can also be washed in the space jointly formed by the bottom of the washing tub 100, the side wall of the support column 210, and the barrel wall of the washing tub 100.

[0120] In the specific solution of this embodiment, the support column 210 includes a first extension section 211 and a second extension section 212 which are arranged below the maximum diameter Dmax of the water-stirring member 200 and are connected. Among them, the side wall of the first extension section 211 extends upward from the bottom of the washing tub 100. The side wall of the second extension section 212 extends outward from the upper end of the first extension section 211 to the periphery and slopes upward, extending to the height where the maximum diameter Dmax of the water-stirring member 200 is located, so that the clothes can be washed below the side wall of the second extension section 212 and move outward along the side wall of the second extension section 212 to the periphery.

[0121] It should be noted that the side wall of the first extension section 211 extends upward from the bottom of the washing tub 100, which can be either vertically upward or inclined upward relative to the vertical direction, gradually approaching or moving away from the barrel wall of the washing tub 100, or extending upward along a curve with a larger curvature and gradually approaching or moving away from the barrel wall of the washing tub 100.

[0122] As a specific implementation manner, the side wall of the first extension section 211 extends along a straight line and is inclined outward at a small angle relative to the vertical direction. The side wall of the second extension section 212 has a larger angle with the vertical direction relative to the side wall of the first extension section 211, and as the height increases, the angle between the side wall of the second extension section 212 and the vertical direction gradually increases, forming a curved surface that bends towards the axis.

[0123] In this embodiment, a water-stirring disc 230 is also provided at the upper end of the support column 210. Specifically, the upper end of the second extension section 212 is connected to the lower surface of the water-stirring disc 230. The support column 210 of the water-stirring member 200 has the above structure, effectively reducing the problem of cleaning dead corners where clothes cannot reach between the upper end of the support column 210 and the lower surface of the water-stirring disc 230.

[0124] In a detailed solution, the upper end of the side wall of the second extension section 212 coincides with the outer periphery of the water-stirring disc 230, so that the lower surface of the water-stirring disc 230 is completely covered by the upper end surface of the support column 210.

[0125] In the preferred solution of this embodiment, as Figure 15 shown, the upper surface of the water-stirring disc 230 is a curved surface with the middle area higher than the peripheral area, and raised stirring parts 231 are arranged on the curved surface. When the water level in the washing tub 100 is higher than the top of the water-stirring disc 230, the stirring parts 231 can stir the washing water above the water-stirring disc 230 as the water-stirring member 200 rotates, and can also rub the clothes located above the water-stirring disc 230, thereby enhancing the washing effect.

[0126] Further, in this embodiment, a first guiding surface 213 is formed on the sidewall of the second extension section 212, which is used to guide the clothes below it to move outward along the first guiding surface 213 during washing. A second guiding surface 214 is formed on the sidewall of the first extension section 211, which is used to guide the clothes to rise along the second guiding surface 214 to the first guiding surface 213 during washing.

[0127] Specifically, when the washing equipment applying the washing tub assembly described in this embodiment is washing, the water stirring member 200 rotates relative to the washing tub 100, and the clothes move from the bottom of the washing tub 100 towards the central area, then move upward along the first guiding surface 213 to the second guiding surface 214, move outward along the second guiding surface 214, and then fall in the area near the barrel wall of the washing tub 100, forming an annular path. On the one hand, it can strengthen the tumbling of the clothes in the tub, thereby improving the washing effect. On the other hand, it also reduces the probability of the clothes concentrating towards the center and getting entangled.

[0128] As a specific implementation manner of this embodiment, at the connection position of the first extension section 211 and the second extension section 212, the angles between the sidewalls of both and the vertical direction are the same. That is, the first guiding surface 213 and the second guiding surface 214 have the same inclination angle at the connection, realizing a smooth transition connection.

[0129] As another specific implementation manner, the inclination angle of the sidewall 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 sidewall of the first extension section 211 relative to the vertical direction, so that an angle less than but close to 180° is formed at the connection of the first guiding surface 213 and the second guiding surface 214. In this way, when the clothes move upward along the second guiding surface 214 to the first guiding surface 213, it can play a certain buffering role on the clothes and strengthen the tendency of the clothes to move outward in a tumbling manner.

[0130] In a further solution of this embodiment, the water stirring ribs 220 have a certain extension length along the axial direction of the washing tub 100, extending from the sidewall of the first extension section 211 to the sidewall of the second extension section 212. A plurality of water stirring ribs 220 are arranged at intervals along the circumferential direction of the support column 210, and the interval angle between two adjacent water stirring ribs 220 enables the clothes to be washed in the interval area between two adjacent water stirring ribs 220, and at the same time the clothes can contact the sidewall of the first extension section 211, so as to move upward along the sidewall of the first extension section 211, that is, the second guiding surface 214.

[0131] In this way, the areas of the sidewalls of the first extension section 211 and the second extension section 212 between two adjacent water stirring ribs 220 can contact the clothes, and there will be no dead corners that are prone to dirt accumulation.

[0132] Furthermore, in this embodiment, the size of the water stirring rib 220 in the radial direction of the washing tub 100 first increases and then decreases from the lower end to the upper end.

[0133] As a specific implementation manner, the cross-sectional shape of the water stirring rib 220 parallel to the radial direction of the washing tub 100 is approximately spindle-shaped. The outer peripheral edge of the water stirring rib 220 extends from bottom to top, and the included angle between the extending direction and the vertical direction gradually decreases, so that the outer peripheral edge of the water stirring member 200 forms a curve that bends towards the barrel wall of the washing tub 100. The upper end of the outer peripheral edge of the water stirring rib 220 coincides with the outer circumference of the water stirring disk 230.

[0134] With the above structure, the water stirring rib 220 can form the Coandă effect during washing, driving the water flow to flow along the outer peripheral edge of the water stirring rib 220. In the area close to the axis of the washing tub 100, the water flow has a tendency to fit the outer peripheral edge of the water stirring rib 220. As the height increases, the flowing direction of the water flow is closer to upward rather than flowing outward. In this way, the lifting force of the water flow on the clothes in the area close to the axis can be enhanced, driving the clothes to move upward to the first guiding surface 213 and finally forming a circular path.

[0135] It can be understood that the clothes moving from the bottom of the barrel towards the central area can also be lifted along the outer peripheral edge of the water stirring rib 220 after contacting the water stirring rib 220. After moving to the maximum diameter Dmax of the water stirring member 200, they move outward under the action of inertia and centrifugal force and finally fall to the bottom of the barrel along the barrel wall of the washing tub 100.

[0136] In the preferred solution of this embodiment, the water stirring member 200 is installed in the washing tub 100, and there is a certain interval between the lower end of the water stirring rib 220 and the bottom of the washing tub 100 to avoid cleaning dead corners between the water stirring rib 220 and the bottom of the barrel. Specifically, an assembly part 210-1 for connecting the stirring shaft 300 is provided at the bottom of the support column 210. The bottom of the washing tub 100 has a groove structure for installing the assembly part 210-1. The assembly part 210-1 is rotatably inserted and matched with the groove structure. The stirring shaft 300 for driving the water stirring member 200 to rotate passes through the installation through hole on the bottom wall of the groove structure and is fixed by being inserted into the assembly part 210-1 from the lower end. The lower end of the water stirring rib 220 is at least flush with the upper end of the assembly part 210-1, and preferably higher than the upper end of the assembly part 210-1. A water seal structure is provided between the assembly part 210-1 and the groove structure to prevent dirt from accumulating inside the groove structure.

[0137] More preferably, a rounded corner structure with a smooth transition 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 member 200 that are prone to accumulating dirt, ensuring the cleanliness inside the washing tub 100 to the greatest extent.

[0138] Further preferably, there are rounded transitions between the outer peripheral edge of the water stirring rib 220 and both side surfaces of the water stirring rib 220, avoiding the existence of sharp corner structures that may scrape and damage clothes.

[0139] It can be understood that, alternatively, by setting a certain interval between the lower end surface of the assembly part and the bottom of the washing tub, or setting the difference between the outer diameter and the inner diameter of the assembly part small enough, 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 tub located outside 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 solution, there is no need to set a groove structure on the bottom of the washing tub, but a structure with a flat upper side surface of the bottom of the tub can be adopted, and preferably a structure with an upward protrusion in the area outside the installation through hole is adopted.

[0140] As a specific implementation manner, the thickness of the water stirring rib 220 in the circumferential direction gradually decreases radially outward, and along the axial direction, the thickness of the middle region of the water stirring rib 220 is greater than the thickness of the upper and lower ends.

[0141] In this embodiment, the change in the distance between the side surface of the water stirring member 200 and the barrel wall of the washing tub 100 is formed by the change in the cross-sectional dimension of the support column 210 itself. Similarly, a structure can be formed in which the maximum diameter Dmax is at a certain distance from the bottom of the washing tub 100, ensuring that the clothes can be washed below the maximum diameter Dmax of the water stirring member 200. At the same time, the side wall of the support column 210 forms a first guiding surface 213 and a second guiding surface 214 for guiding the movement of the clothes during washing, which can effectively drive the clothes to move along an annular path and flip below the maximum diameter Dmax of the water stirring member 200, with better washing effect and can prevent the clothes from tangling.

[0142] Embodiment III

[0143] As Figures 14 to 16 shown, this embodiment is a further limitation of the above Embodiment II. The water stirring member 200 includes an assembly part 210-1 and a water stirring part 240 extending upward from the assembly part 210-1. The assembly part 210-1 is set as a solid structure, and at least part of the water stirring part 240 is set as a hollow structure. For example, the water stirring part 240 has a cavity extending axially from the top to the assembly part 210-1.

[0144] Specifically, in this embodiment, the assembly part 210-1 is a solid cylinder, which can increase the connection strength of the water stirring member 200. The water stirring part 240 has an integrally formed hollow structure, 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.

[0145] As a specific embodiment, the water stirring member 200 includes a support column 210, and water stirring ribs 220 provided on the side wall of the support column 210 and protruding in a radial or near-radial direction away from the axis of the support column 210. The water stirring ribs 220 extend along the axial direction of the support column in the length direction, and extend in a direction away from the outer circumference of the support column in the width direction, and can be arranged radially or deviate from the radial direction.

[0146] In this embodiment, the support column 210 includes an assembly portion 210-1 and a hollow column 210-8 coaxially connected to the upper part of the assembly portion 210-1. The assembly portion 210-1 is a solid column, preferably a cylinder, and the hollow column 210-8 extends upward from the upper end surface of the assembly portion 210-1. The outer diameter at the connection of the hollow column 210-8 and the assembly portion 210-1 can be greater than the diameter of the assembly portion 210-1, or can be less than or equal to the diameter of the assembly portion 210-1; the outer peripheral wall of the hollow column 210-8 and the outer peripheral wall of the assembly portion 210-1 are smoothly transitioned and extended upward.

[0147] 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 disc 230 is provided at the top end of the support column 210. The maximum diameter Dmax of the water stirring portion 240 is formed by the outer circumference of the water stirring disc 230, and the top surface of the water stirring disc 230 is a curved surface protruding upward. A cavity 210-9 similar to the external shape of the support column 210 is formed inside the hollow column 210-8.

[0148] Preferably, the water stirring ribs 220 are also provided with a hollow structure.

[0149] More preferably, the internal space of the water stirring ribs 220 communicates with the cavity 210-9 inside the hollow column 210-8.

[0150] More preferably, the lower end of the water stirring ribs 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 connection strength between the assembly portion 210-1 and the water stirring portion 240.

[0151] In this embodiment, the water stirring portion 240 is connected to a stirring shaft 300 that can rotatably pass through the bottom of the washing tub 100 through the assembly portion 210-1, so that the water stirring member 200 can rotate relative to the washing tub 100.

[0152] 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.

[0153] In this embodiment, a spline groove 210-6 that extends coaxially upward from the bottom end face of the assembly part 210-1 is provided on the assembly part 210-1. The spline groove 210-6 at least partially sleeves the upper end of the stirring shaft 300 and is key-connected to the stirring shaft 300. The spline groove 210-6 is formed on the assembly part 210-1 of the water stirring member 200.

[0154] In this embodiment, an opening communicating with the cavity 210-9 inside the hollow column is provided at the top of the water stirring member 200. The screw 210-7 enters the cavity 210-9 through the opening and is connected downward to the stirring shaft 300 key-connected inside the assembly part 210-1, fixedly connecting the water stirring member 200 and the stirring shaft 300 axially. To prevent water from entering the cavity 210-9, a sealing component is installed at the opening.

[0155] Preferably, a sealing groove 210-4 is provided at the top of the water stirring member 200. The sealing groove 210-4 is recessed coaxially downward from the top surface of the water stirring disc 230. An opening communicating with the cavity 210-9 is provided at the bottom of the sealing groove 210-4.

[0156] Specifically, a through hole, preferably a threaded hole, is provided at the upper end of the assembly part 210-1. The rod part of the screw 210-7 passes through the top of the assembly part 210-1 and is tightened in the threaded hole. 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 at the bottom of the sealing groove 210-4 and the cavity 210-9 of the hollow column 210-8. The screw is preferably a countersunk head screw.

[0157] A sealing cover 210-5 for closing the upper end of the water stirring member 200 is provided at the sealing groove 210-4 to prevent washing water from entering the inside of the water stirring member 200.

[0158] Specifically, the sealing cover 210-5 includes a flat plate part and a plug-in part. The flat plate part covers the notch of the sealing groove 210-4 and is embedded in the top of the water stirring member 200. The plug-in part is plugged into the sealing groove 210-4 and has an interference fit with the sealing groove 210-4.

[0159] The top of the flat plate part is in the same plane as the top of the water stirring member 200.

[0160] The sealing groove 210-4 includes a first section and a second section with an increasing diameter from top to bottom. A limiting convex is provided at the lower end of the plug-in part, protruding from the outer wall of the lower end of the plug-in part in a direction away from the axis of the water stirring member 200. The limiting convex is engaged at the junction between the first section and the second section.

[0161] Preferably, the inner walls of the first and second sections of the sealing groove 210-4 are transitionally connected by a conical surface that slopes downward and away from the axis of the water stirring member 200 from top to bottom. The shape of the limiting convex is adapted to the shape between the first and second sections of the sealing groove 210-4. The outer peripheral surface of the limiting convex is in contact with the inner wall of the second section, and the top of the limiting convex is in contact with the conical surface between the first and second sections of the limiting groove. Preferably, the bottom of the limiting convex is provided with a conical surface whose outer diameter gradually decreases from top to bottom, and the outer diameter of the bottom of the limiting convex is smaller than the inner diameter at the notch of the sealing groove 210-4.

[0162] In this embodiment, a sealing convex rib extending along the circumferential direction of the insertion portion is provided in the middle of the insertion portion. The insertion portion is elastically abutted against the inner wall of the first section of the sealing groove 210-4 through the sealing convex rib. Preferably, the sealing convex rib extends along the circumferential direction of the insertion portion and is provided with multiple circles arranged at intervals along the axial direction of the insertion portion.

[0163] Preferably, in this embodiment, the sealing convex rib slopes upward along the extending direction away from the axis of the water stirring member 200 to improve the smoothness of inserting the sealing cover 210-5.

[0164] In this embodiment, a specific assembly structure of the water stirring member 200 and the stirring shaft 300 is provided. By providing the interior of the water stirring portion 240 of the water stirring member 200 to be hollow, the purpose of fixing the water stirring member 200 and the stirring shaft 300 by installing screws 210-7 from top to bottom can be achieved. At the same time, the overall weight of the water stirring member 200 is reduced, thereby further reducing the motor energy consumption for driving the water stirring member 200 to rotate by the driving device. By providing the sealing cover 210-5, it is possible to prevent washing water from entering the interior of the water stirring member 200, thereby preventing the problem that lint or dirt enters and remains in the interior of the water stirring member 200 along with the washing water and cannot be cleaned.

[0165] Embodiment 4

[0166] As Figures 14 to 16 shown, this embodiment is a further limitation of the above Embodiment 2 or 3. The water stirring member 200 includes an assembly portion 210-1 and a water stirring portion 240 extending upward from the assembly portion 210-1. The stirring shaft 300 is rotatably passed through the center of the bottom of the tub and connected to the assembly portion 210-1.

[0167] As a specific implementation manner, the distance from the side wall of the assembly portion 210- to the inner surface of the circumferential 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 circumferential wall of the washing tub 100. More specifically, the distance from the side wall of the assembly portion 210- to the inner surface of the circumferential 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 circumferential wall of the washing tub 100.

[0168] In this way, the bottom surface of the washing tub 100 is basically completely exposed to the washing space above, avoiding the problem of dirt accumulation at the bottom of the tub.

[0169] In this embodiment, the dehydration shaft 110 connected to the washing tub 100 is sleeved on the stirring shaft 300. At the upper end position of the dehydration shaft 110, a sealing structure 120 is provided between the dehydration shaft 110 and the stirring shaft 300, so that the dehydration shaft 110 and the stirring shaft 300 are sealed and connected in a relatively rotatable manner, preventing water from entering between the dehydration shaft 110 and the stirring shaft 300.

[0170] 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.

[0171] As a specific implementation manner, the upper end surface of the sealing structure 120 is flush or substantially flush with the inner surface of the tub bottom, thereby preventing a gap that is prone to dirt accumulation from being formed between the dehydration shaft 110 and the stirring shaft 300.

[0172] The above-mentioned "substantially flush" means that the upper end surface of the sealing structure 120 can be slightly higher than the inner surface of the tub bottom or slightly lower than the inner surface of the tub bottom.

[0173] For the structure where the upper end surface of the sealing structure 120 is slightly higher than the inner surface of the tub bottom, 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 tub bottom, although a concave gap will be formed, the concave size of this gap is very small, and the scouring force when the water flow passes through here during washing is sufficient to carry out the lint and dirt at this place, and there will be no dirt residue.

[0174] As a specific implementation manner, 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 oppositely arranged with 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 diameter of the lower end of the assembly part 210-1 is larger than the diameter of the stirring shaft 300.

[0175] Furthermore, the diameter of the lower end of the assembly part 210-1 is larger than the outer diameter of the sealing structure 120.

[0176] In a specific scheme, the difference in size between the diameter of the lower end of the assembly part 210-1 and the outer diameter of the sealing structure 120 is close to the wall thickness of the assembly part 210-1 in the radial direction.

[0177] In this embodiment, the specific assembly relationship between the bottom of the water stirring member 200 and the stirring shaft 300 and the tub bottom further ensures that no dirt accumulates at the tub bottom.

[0178] The above are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention. Although the present invention has been disclosed above with the preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art of this patent, without departing from the scope of the technical solution of the present invention, can make some changes or modifications using the technical content prompted above to form equivalent embodiments of equivalent changes. However, as long as it does not depart from the content of the technical solution of the present invention, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention still fall within the scope of the present invention's solution.

Claims

1. A washing device, characterized in that, it includes: a washing tub; a water stirring member disposed inside the washing tub and having a maximum diameter at a certain height; the lowest washing water level in the washing tub is lower than the maximum diameter, and the highest washing water level is higher than the maximum diameter.

2. The washing device according to claim 1, characterized in that, the top of the water stirring member is located between the lowest washing water level and the highest washing water level.

3. The washing device according to claim 1 or 2, characterized in that, inside the washing tub, a first washing space is formed below the maximum diameter of the water stirring member; and / or, inside the washing tub, a second washing space is formed above the maximum diameter of the water stirring member.

4. The washing device according to any one of claims 1 - 3, characterized in that, the water stirring member includes: a support column having a certain height along the axial direction of the washing tub; a water stirring disk disposed on the support column, and the outer periphery of the water stirring disk forms the maximum diameter; preferably, the water stirring disk is disposed at the upper end of the support column.

5. The washing device according to claim 4, characterized in that, below the water stirring disk, the bottom of the washing tub, the side wall of the support column and the barrel wall of the washing tub together form a first washing space; and / or, a second washing space is formed above the water stirring disk.

6. The washing device according to claim 5, characterized in that, the lower side of the water stirring disk has a first guiding surface extending from the area near the support column towards the outer periphery, for guiding the clothes in the first washing space to move along the first guiding surface towards the outer periphery; preferably, the first guiding surface extends horizontally or obliquely upwards from the area near the center of the water stirring disk towards the outer periphery.

7. The washing device according to claim 6, characterized in that, the side surface of the support column forms an upward - extending second guiding surface for guiding the clothes in the first washing space to move upwards to the first guiding surface; preferably, when the water stirring member rotates, it can drive the clothes in the first washing space to move along the bottom of the washing tub towards the central area and then move upwards along the second guiding surface.

8. The washing device according to claim 7, characterized in that, the first guiding surface extends obliquely upwards from the upper end of the second guiding surface towards the outer periphery to the lower side surface of the water stirring disk; preferably, the extending end of the first guiding surface coincides with the outer periphery of the water stirring disk.

9. The washing device according to any one of claims 4 - 8, characterized in that, the top of the water stirring disk is higher than the maximum diameter; preferably, the highest washing water level is higher than the top of the water stirring disk.

10. The washing device according to any one of claims 4 - 9, characterized in that, the side wall of the support column is convexly provided with water stirring ribs, and the water stirring ribs have a certain extension length along the axial direction of the washing tub; preferably, the water stirring ribs protrude along the radial direction of the washing tub, or the protruding direction forms an angle less than 90° with the radial direction of the washing tub; preferably, a plurality of water stirring ribs are arranged at intervals along the circumferential direction of the support column; Preferably, the upper end of the water stirring rib is connected to the first guiding surface on the lower side of the water stirring disc.

11. The washing device according to any one of claims 4-10, characterized in that the support column is arranged with a variable diameter along the axial direction and includes a connected first extension section and a second extension section; the side wall of the first extension section extends upward from the bottom of the washing tub, and the side wall of the second extension section extends outward from the upper end of the first extension section and slopes upward, and the end is connected to the water stirring disc.

12. The washing device according to any one of claims 4-10, characterized in that the support column has the same diameter along the axial direction, and a water stirring rib is convexly provided on the side wall of the support column, and the dimension of the water stirring rib in the radial direction of the washing tub increases with the increase of the height.

13. The washing device according to any one of claims 1-12, characterized in that the height difference h between the maximum diameter of the water stirring member and the bottom of the washing tub is more than 10 cm.

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