Washing equipment

Abstract

The invention provides washing equipment which comprises a washing barrel and a water stirring component rotatably arranged in the washing barrel, and an assembly table protruding upwards is arranged on the inner surface of the barrel bottom of the washing barrel; the bottom of the water stirring component is provided with an assembling groove with the inner diameter matched with the outer diameter of the assembling table, the water stirring component is arranged on the assembling table in a sleeving mode through the assembling groove, a gap which firstly extends upwards and then extends in the direction close to the axis of the washing barrel is formed between the water stirring component and the assembling table, and the end, close to the axis of the washing barrel, of the gap is closed. The assembling table is arranged on the inner surface of the barrel bottom, and the assembling groove matched with the assembling table is formed in the bottom of the water stirring component, so that the gap which firstly extends upwards and then extends in the direction close to the axis of the washing barrel is formed between the water stirring component and the barrel bottom of the washing barrel, and the end, close to the axis of the washing barrel, of the gap is closed; air pressure of air in the gap between the water stirring component and the bottom of the washing barrel can be utilized to form air seal, and dirt is prevented from flowing towards the inner circumference of the gap along with washing water.

Description

Technical Field

[0001] The present invention relates to the technical field of clothing processing, and in particular to a washing device. 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 them, pulsator washing machines are popular among users because of their better cleaning effect.

[0003] A pulsator washing machine typically includes a washing tub and a pulsator, which is located at the bottom of the tub. During operation, the rotation of the pulsator drives the washing water in the tub, washing the laundry inside. Existing pulsators are typically flat, circular pulsators. During washing, impurities such as dirt and lint from clothing easily accumulate in the gap between the bottom of the pulsator and the tub, making them ineffective for simple rinsing. Furthermore, dirt and lint left in a humid environment for extended periods can easily breed bacteria, creating a negative user experience.

[0004] Chinese utility model patent application number CN 201520398758.5 ​​discloses a pulsator washing machine, which belongs to the field of electrical appliances and addresses the technical problem of insufficient cleaning capacity in existing washing machines. The pulsator washing machine provided by the utility model comprises a body, a water storage tub, and a washing and dehydrating tub. The bottom of the washing and dehydrating tub is provided with a rotatable pulsator disc. The pulsator disc is provided with an intermediate column coaxial with the pulsator disc. The intermediate column is provided with a detergent inlet and a detergent outlet, and the detergent inlet and the detergent outlet are connected. The detergent outlet communicates with the washing space above the pulsator disc. In the above solution, the intermediate column is arranged on the pulsator disc, and dirt easily accumulates between the pulsator disc and the bottom of the washing and dehydrating tub, making it difficult to clean.

[0005] Therefore, designing a washing device that can avoid dirt accumulation between the water stirring component and the bottom of the washing tub has become a technical problem that needs to be solved urgently by those skilled in the art.

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

[0007] The present invention provides a washing device, in which a gap is formed between a water stirring member and the bottom of a washing tub, the gap first extending upward and then extending toward the axis of the washing tub. By closing one end of the gap close to the axis of the washing tub, the air pressure in the gap between the water stirring member and the bottom of the washing tub can be utilized to form an air seal, thereby preventing washing water from flowing toward the inner periphery of the gap, thereby solving the problem of dirt easily accumulating between the water stirring member and the bottom of the washing tub in existing washing devices.

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

[0009] A washing device includes a washing tub and a water-stirring member rotatably arranged in the washing tub, wherein an upwardly protruding assembly platform is provided on the inner surface of the bottom of the washing tub; the bottom of the water-stirring member is provided with an assembly groove whose inner diameter is adapted to the outer diameter of the assembly platform, and the water-stirring member is sleeved on the assembly platform through the assembly groove, forming a gap between the water-stirring member and the assembly platform, which first extends upward and then extends toward the axis of the washing tub, and the gap is closed at one end close to the axis of the washing tub.

[0010] Furthermore, it also includes a driving device, which is connected to the water stirring component through a stirring shaft and is connected to the washing tub through a dehydration shaft; a water seal structure is provided between the stirring shaft and the water stirring component, and between the dehydration shaft and the washing tub.

[0011] Furthermore, the upper end of the dehydration shaft is plugged into the bottom of the washing tub and extends above the inner surface of the bottom of the washing tub. An upwardly extending extension wall is provided on the inner surface of the bottom surrounding the dehydration shaft. A first water seal structure is provided between the inner periphery of the extension wall and the outer peripheral wall of the dehydration shaft. The extension wall, the first water seal structure, and the upper end of the dehydration shaft constitute an assembly platform.

[0012] Preferably, the upper end surface of the extension wall, the upper end surface of the first water seal structure, and the upper end surface of the dehydration shaft are substantially flush.

[0013] Furthermore, the first water seal structure includes a first extension portion sealed with the inner periphery of the extension wall, a second extension portion sealed with the outer peripheral wall of the dehydration shaft, and a third extension portion connected between the upper ends of the first extension portion and the second extension portion;

[0014] Preferably, the first water seal structure further includes a skeleton arranged inside the first extension part, the second extension part and the third extension part.

[0015] Furthermore, the first water seal structure is sealed by the sealing lip and the inner periphery of the extension wall and the outer peripheral wall of the dehydration shaft;

[0016] Preferably, the sealing lips are respectively provided on the outer periphery of the first extension portion and the inner periphery of the second extension portion, and the sealing lips on the first extension portion and the second extension portion are respectively provided with at least three peripheries arranged along the axial direction of the washing tub.

[0017] Furthermore, a radial protrusion extending radially along the washing tub is provided on the outer peripheral wall of the dehydration shaft. The radial protrusion abuts against the tub bottom and is connected to the tub bottom by screws, and the screws are provided between the extension wall and the dehydration shaft.

[0018] Furthermore, a spline groove is provided at the bottom of the water stirring member, and the upper end of the stirring shaft is at least partially inserted into the spline groove and key-connected to the water stirring member;

[0019] A second water seal structure is provided between the outer periphery of the stirring shaft and the notch of the spline groove.

[0020] Furthermore, the second water seal structure includes:

[0021] The sealing ring has an inner diameter of the notch of the spline groove that gradually decreases from bottom to top. The sealing ring is arranged at the notch of the spline groove, and its inner periphery and outer periphery are elastically abutted against the outer peripheral wall of the stirring shaft and the inner wall of the notch of the sealing groove respectively;

[0022] Preferably, the upper end of the stirring shaft includes a first shaft segment and a second shaft segment whose diameters decrease from bottom to top, and the second shaft segment is inserted into the spline groove; the second water seal structure also includes a baffle for closing the notch of the spline groove, one side of the baffle is in contact with the bottom of the assembly groove, and the other side is in contact with the upper end of the first shaft segment.

[0023] Furthermore, an annular groove is provided on the bottom of the washing tub, the annular groove is provided around the assembly platform, and the lower end of the water stirring member on the outer periphery of the assembly groove is inserted into the annular groove;

[0024] Preferably, the groove wall of the annular groove on the side away from the axis of the washing tub is inclined from bottom to top in a direction away from the axis of the washing tub.

[0025] Furthermore, the water stirring member is a hollow structure, including a cavity extending axially downward from its top, and including an upper half shell and a lower half shell spliced ​​together;

[0026] The water stirring member has a horizontal cross section with the largest radius at a certain height from the inner surface of the washing tub, and the upper half shell and the lower half shell are divided from the maximum radius Rmax of the water stirring member.

[0027] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0028] 1. The present invention provides an upwardly protruding assembly platform on the inner surface of the barrel bottom and a matching assembly groove at the bottom of the water stirring member, thereby forming a gap between the water stirring member and the barrel bottom of the washing tub that first extends upward and then extends toward the axis of the washing tub. By closing the end of the gap close to the axis of the washing tub, the air pressure in the gap between the water stirring member and the barrel bottom of the washing tub can be utilized to form an air seal, preventing wash water from flowing toward the inner periphery of the gap. This effectively avoids the problem of dirt and grime easily accumulating between the water stirring member and the barrel bottom and being difficult to clean, thereby improving the user experience.

[0029] 2. The present invention realizes static sealing by arranging a water seal structure between the stirring shaft and the water stirring member, and between the dehydration shaft and the bottom of the washing tub, thereby improving the sealing effect of the gap between the water stirring member and the bottom of the washing tub. At the same time, it can avoid the obstruction of the relative rotation between the water stirring member and the washing tub caused by the arrangement of the water seal structure, thereby reducing the load of the driving device.

[0030] 3. The present invention arranges the screws for fixing the washing tub and the dehydration shaft between the inner periphery of the extension wall and the outer periphery of the dehydration shaft, and can use the first water seal structure to seal the screws, thereby preventing leakage of washing water and improving the air tightness of the gap between the water stirring member and the bottom of the tub.

[0031] 4. The present invention can improve the air tightness of the gap between the water stirring component and the bottom of the barrel by arranging a second water seal structure between the notch of the spline groove and the outer periphery of the stirring shaft. At the same time, it can prevent washing water from flowing into the inside of the water stirring component and prevent dirt from being deposited in the spline groove and the cavity inside the water stirring component.

[0032] At the same time, the present invention has a simple structure, significant effects, and is suitable for popularization and use.

[0033] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an undue limitation of the present invention. Obviously, the drawings described below are only some embodiments. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without inventive effort. In the accompanying drawings:

[0035] Figure 1 is a cross-sectional view of a washing tub assembly in Embodiment 1 of the present invention;

[0036] Figure 2 This is an embodiment of the present invention Figure 1 Enlarged view of point D in the middle;

[0037] Figure 3 is a cross-sectional view of the water seal structure in Example 1 of the present invention;

[0038] Figure 4 Schematic diagram of the structure of the water stirring component in the second embodiment of the present invention;

[0039] Figure 5 Schematic diagram of the internal structure of the barrel bottom when the drain valve is in the blocking position in the third embodiment of the present invention;

[0040] Figure 6Schematic diagram of the internal structure of the bottom of the barrel when the drain valve is in the open position in the third embodiment of the present invention;

[0041] Figure 7 This is a cross-sectional view of the drain valve in the third embodiment of the present invention when it is in the blocking position;

[0042] Figure 8 It is a structural diagram of the water stirring component in the fifth embodiment of the present invention.

[0043] Description of the main components in the figure:

[0044] 100, washing tub; 100-2, extension wall; 100-31, washing surface; 100-32, drain outlet; 110, dehydration shaft; 110-1, radial protrusion; 200, water stirring member; 210, support column; 210-1, assembly portion; 210-3, assembly channel; 210-4, sealing groove; 210-5, sealing cover; 210-6, spline groove; 210-8, hollow column; 210-9, cavity; 210-10, assembly groove; 211, first extension section; 212, second extension section; 213, first guide surface; 214, second guide surface; 220, water stirring rib; 230, water stirring tray; 231, stirring portion; 240, stirring Water part; 250, injection-molded insert; 300, stirring shaft; 500, water seal structure; 501, first water seal structure; 502, second water seal structure; 502-1, sealing ring; 502-2, baffle; 500-1, first extension; 500-2, second extension; 500-3, skeleton; 500-4, sealing lip; 500-6, first sealing lip; 500-7, second sealing lip; 500-11, third extension; 600, drain valve; 600-1, valve plug; 800, valve cover; 801, top wall; 802, surrounding wall; 803, hollow hole; 8031, first hollow hole; 8032, second hollow hole; 804, connecting groove.

[0045] 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

[0046] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0047] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "inside", "outside", etc., indicating directions or positional relationships, are 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 limiting the present invention.

[0048] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; and direct or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0049] An embodiment of the present invention provides a washing tub assembly for a washing machine, and a washing machine having the washing tub assembly, wherein the washing machine may be a washing machine, a washer-dryer, a care machine, or other washing machine having a clothes washing function.

[0050] Specifically, the washing tub assembly includes a washing tub 100 and a water-stirring member 200 rotatably disposed within the washing tub 100. The washing apparatus includes at least the above-mentioned washing tub assembly and a driving device, which is respectively connected to the washing tub 100 and the water-stirring member 200 for driving the washing tub 100 and the water-stirring member 200 to rotate.

[0051] More specifically, the driving device drives the washing tub 100 and the water stirring member 200 via a deceleration clutch device. The deceleration clutch device includes a stirring shaft 300 connected to the water stirring member 200 and a dehydration shaft 110 connected to the washing tub 100.

[0052] During the washing process, the deceleration clutch device performs a washing operation. Driven by the driving device, the stirring shaft 300 drives the water stirring member 200 to rotate, while the dehydration shaft 110 is fixed, so that the washing tub 100 remains stationary. Alternatively, the dehydration shaft 110 and the stirring shaft 300 rotate in opposite directions, driving the washing tub 100 and the water stirring member 200 to rotate in opposite directions. The relative rotation between the water stirring member 200 and the washing tub 100 agitates the clothes and the wash water in the tub, achieving a cleaning effect on the clothes. During the dehydration process, the deceleration clutch device performs a dehydration operation. Driven by the driving device, the stirring shaft 300 and the dehydration shaft 110 rotate synchronously at high speed, thereby driving the water stirring member 200 and the washing tub 100 to rotate synchronously at high speed, and using centrifugal force to spin the clothes in the tub.

[0053] However, lint and dirt shed during the washing process mix into the wash water. If there is a large, narrow gap between the agitating member 200 and the washing tub 100, these lint and dirt can easily become lodged in the gap, making it difficult for the water to remove them during the wash cycle. This requires the user to manually disassemble the agitating member 200 for cleaning. If the user fails to clean the gap for a long time, a large amount of dirt can accumulate in the gap between the agitating member 200 and the washing tub 100, particularly between the bottom surface of the agitating member 200 and the bottom 100-3 of the washing tub 100. This can easily breed bacteria and cause secondary contamination of the clothes.

[0054] Example 1

[0055] like Figures 1 to 3 As shown, in an embodiment of the present invention, a washing device is introduced.

[0056] The washing device includes a washing tub assembly, which includes a washing tub 100 and a water stirring member 200 installed in the washing tub 100. When the washing device is working, the washing water in the washing tub 100 is rotated by the water stirring member 200, thereby washing the clothes in the washing tub 100.

[0057] In this embodiment, the washing tub 100 is a tub without holes.

[0058] In this embodiment, when the water-stirring member 200 is installed, a gap is formed between the bottom of the water-stirring member 200 and the bottom of the washing tub 100. During the washing process, dirt, lint, and other impurities on the clothes are easily accumulated in the gap between the bottom of the water-stirring member 200 and the bottom of the tub. The area within this gap does not come into contact with the clothes, so the impurities in the gap accumulate for a long time and cannot be effectively removed by simply flushing. This can easily breed bacteria and contaminate the clothes with the wash water.

[0059] Preferably, in this embodiment, an upwardly protruding assembly platform is provided on the inner surface of the bottom of the washing tub 100; the bottom of the water stirring member 200 is provided with an assembly groove 210-10 whose inner diameter is adapted to the outer diameter of the assembly platform, and the water stirring member 200 is mounted on the assembly platform through the assembly groove 210-10, forming a gap between the assembly platform and the assembly platform, which first extends upward and then extends toward the direction close to the axis of the washing tub 100, and the gap is closed at one end close to the axis of the washing tub 100. In this embodiment, a gap is formed between the water-stirring member 200 and the bottom of the washing tub 100, which first extends upward and then extends toward the direction close to the axis of the washing tub 100. By closing one end of the gap close to the axis of the washing tub 100, the air pressure in the gap between the water-stirring member 200 and the bottom of the washing tub 100 can be utilized to form an air seal, thereby preventing the washing water from flowing toward the inner periphery of the gap. This prevents impurities such as dirt and lint that fall from clothes from entering and accumulating in the gap between the water-stirring member 200 and the bottom of the tub, effectively avoiding the problem of dirt and grime easily accumulating between the water-stirring member 200 and the bottom of the tub and being difficult to clean, thereby improving the user experience.

[0060] The washing machine also includes a drive device, which is transmission-connected to the water-stirring member 200 via a stirring shaft 300 and to the washing tub 100 via a dehydration shaft 110. The stirring shaft 300 and the dehydration shaft 110 are coaxially arranged, and a water seal is provided between the stirring shaft 300 and the dehydration shaft 110 to ensure sealing between them. Water seal structures 500 are respectively provided between the stirring shaft 300 and the water-stirring member 200 and between the dehydration shaft 110 and the washing tub 100. A second water seal structure 502 between the stirring shaft 300 and the water-stirring member 200 and a first water seal structure 501 between the dehydration shaft 110 and the washing tub 100 seal the gap between the water-stirring member 200 and the bottom of the washing tub 100 at the end near the axis of the washing tub 100.

[0061] Specifically, the upper end of the dehydration shaft 110 is plugged into the bottom of the washing barrel 100 and extends above the inner surface of the bottom of the washing barrel 100. An upwardly extending extension wall 100-2 is provided around the dehydration shaft 110 on the inner surface of the bottom. A first water seal structure 501 is provided between the inner periphery of the extension wall 100-2 and the outer peripheral wall of the dehydration shaft 110; the extension wall 100-2, the first water seal structure 501 and the upper end of the dehydration shaft 110 constitute an assembly table; preferably, the upper end surface of the extension wall 100-2, the upper end surface of the first water seal structure 501, and the upper end surface of the dehydration shaft 110 are basically flush. A spline groove 210-6 is provided at the bottom of the water-stirring member 200, and the upper end of the stirring shaft 300 is at least partially inserted into the spline groove 210-6 and key-connected to the water-stirring member 200; a second water seal structure 502 is provided between the outer periphery of the stirring shaft 300 and the notch of the spline groove 210-6.

[0062] In this embodiment, static sealing is achieved by setting the water seal structure 500 between the stirring shaft 300 and the water stirring member 200, and between the dehydration shaft 110 and the bottom of the washing tub 100, which can improve the sealing effect of the gap between the water stirring member 200 and the bottom of the washing tub 100. At the same time, the relative rotation between the water stirring member 200 and the washing tub 100 can be avoided from being hindered by the setting of the water seal structure 500, thereby reducing the load of the driving device.

[0063] Specifically, such as Figure 1 and Figure 2 As shown, in this embodiment, an assembly hole is coaxially provided on the bottom of the washing barrel 100, and the inner diameter of the assembly hole is adapted to the outer diameter of the upper end of the dehydration shaft 110. The dehydration shaft 110 is provided with a radial protrusion 110-1 extending radially along the washing barrel 100 on the outer peripheral wall near its upper end. The radial protrusion 110-1 protrudes from the outer peripheral wall of the dehydration shaft 110, and the diameter of the radial protrusion 110-1 is larger than the inner diameter of the assembly hole.

[0064] During assembly, the upper end of the dehydration shaft 110 is inserted into the assembly hole from the bottom of the washing barrel 100, and the radial protrusion 110-1 abuts against the bottom of the washing barrel 100 for axial limitation. The upper end of the dehydration shaft 110 extends above the inner surface of the bottom of the washing barrel 100, and the radial protrusion 110-1 abuts against the bottom of the barrel and is screwed to the bottom of the barrel.

[0065] An extension wall 100-2 is provided on the inner surface of the barrel bottom, and the extension wall 100-2 protrudes toward the inner side of the barrel bottom. The extension wall 100-2 is arranged around the upper end of the dehydration shaft 110 and is spaced apart from the outer peripheral wall of the dehydration shaft 110. The screws for fixing the radial protrusion 110-1 to the barrel bottom are arranged between the extension wall 100-2 and the dehydration shaft 110.

[0066] Preferably, in this embodiment, a sealing gasket is provided between the radial protrusion 110-1 and the barrel bottom. The sealing gasket may be a rubber gasket. The screws used to secure the barrel to the radial protrusion 110-1 extend from the inside of the barrel bottom, through the barrel bottom, and threadedly connect the sealing gasket to the radial protrusion 110-1. Preferably, a gasket is provided between the head of the screw and the barrel bottom. In this embodiment, a plurality of these screws are provided, evenly spaced circumferentially around the dehydration shaft 110.

[0067] like Figure 2 and Figure 3As shown, in this embodiment, the first water seal structure 501 is arranged between the inner periphery of the extension wall 100-2 and the outer peripheral wall of the upper end of the dehydration shaft 110. The first water seal structure 501 is an annular structure. The inner periphery of the first water seal structure 501 is sealed with the outer peripheral wall of the upper end of the dehydration shaft 110, and the outer periphery of the first water seal structure 501 is sealed with the inner periphery of the extension wall 100-2.

[0068] Specifically, the extension wall 100-2 extends axially along the washing tub 100. The first water seal structure 501 has an inverted U-shaped axial cross-section and comprises a flexible body and a framework 500-3 disposed within the flexible body. The flexible body of the first water seal structure 501 includes a first extension portion 500-1 that seals against the inner periphery of the extension wall 100-2, a second extension portion 500-2 that seals against the outer periphery of the dehydration shaft 110, and a third extension portion 500-11 connecting the upper ends of the first and second extension portions 500-1, 500-2.

[0069] The first extension part 500-1 and the second extension part 500-2 are both configured to be cylindrical. The first extension part 500-1 and the second extension part 500-2 extend axially along the extension wall 100-2 and the dehydration shaft 110 respectively. The outer peripheral wall of the first extension part 500-1 is fitted and sealed with the inner periphery of the extension wall 100-2, and the inner periphery of the second extension part 500-2 is fitted and sealed with the outer periphery of the dehydration shaft 110. The third extension part 500-11 extends from the upper end of the first extension part 500-1 in a direction close to the axis of the washing barrel 100, and is connected as a whole with the upper end of the second extension part 500-2.

[0070] The skeleton 500-3 is positioned within the soft body, extending in the same direction as the soft body. The skeleton 500-3 is configured as a single unit, positioned in the middle of the soft body, to conform to the soft body's shape. By integrating the skeleton 500-3 with the soft body, the skeleton 500-3 is embedded within the soft body to provide support for the shape and position of the soft body's first extension 500-1 and second extension 500-2, thereby increasing the strength of the water seal structure 500.

[0071] In this embodiment, a sealing lip 500 - 4 is provided on the soft body, and the first water seal structure 501 is sealed and matched with the extension wall 100 - 2 and the dehydration shaft 110 through the sealing lip 500 - 4 on the soft body.

[0072] Specifically, the soft body seals against the inner periphery of the extension wall 100-2 and the outer periphery of the dehydration shaft 110 through sealing lips 500-4. The sealing lips 500-4 include a first sealing lip 500-6 disposed on the outer periphery of the first extension portion 500-1 and a second sealing lip 500-7 disposed on the inner periphery of the second extension portion 500-2. The first sealing lip 500-6 and the second sealing lip 500-7 extend circumferentially along the first and second extension portions 500-1, 500-2, respectively, and include multiple turns arranged axially along the first and second extension portions 500-1, 500-2. The first extension portion 500-1 is sealed by elastically contacting the first sealing lip 500-6 with the inner periphery of the extension portion, while the second extension portion 500-2 is sealed by elastically contacting the second sealing lip 500-7 with the outer periphery of the dehydration shaft 110.

[0073] In some specific embodiments, the first sealing lip 500-6 is configured to be serrated or wavy in a direction protruding away from the axis of the washing tub 100, and its axial cross-section is a plurality of triangles arranged continuously along the axial direction of the first extension portion 500-1, or, the side of its axial cross-section away from the axis of the washing tub 100 is a wavy line.

[0074] The second sealing lip 500-7 is configured to be serrated or wavy in shape protruding toward the axis of the washing tub 100, and its axial cross-section is a plurality of triangles arranged continuously along the axial direction of the second extension portion 500-2, or, the side of its axial cross-section close to the axis of the washing tub 100 is a wavy line.

[0075] Preferably, the first sealing lip 500 - 6 and the second sealing lip 500 - 7 are both provided with at least three circles.

[0076] Preferably, in this embodiment, the upper end of the extension wall 100-2 is flush with the upper end of the dehydration shaft 110, the third extension portion 500-11 extends in the horizontal direction, and the upper end surface of the third extension portion 500-11, the upper end surface of the extension wall 100-2, and the upper end surface of the dehydration shaft 110 are flush.

[0077] Preferably, in this embodiment, the axial length of the first extension portion 500-1 is the same as the axial length of the inner circumference of the extension wall 100-2, the lower end of the first extension portion 500-1 abuts against the bottom of the washing tub 100, and the axial length of the second extension portion 500-2 is smaller than the axial length of the first extension portion 500-1, that is, the lower end of the second extension portion 500-2 is higher than the lower end of the first extension portion 500-1.

[0078] In this embodiment, the bottom of the washing barrel 100 is composed of a plastic part and a barrel bottom flange. The barrel bottom flange is embedded in the plastic part. The radial protrusion 110-1 on the outer peripheral wall of the dehydration shaft 110 is screwed to the barrel bottom flange of the barrel bottom, and the extension wall 100-2 is arranged on the plastic part inside the flange.

[0079] like Figure 2 As shown, in this embodiment, the second water seal structure 502 is disposed between the outer periphery of the agitator shaft 300 and the notch of the spline groove 210-6. Specifically, the inner diameter of the notch of the spline groove 210-6 gradually decreases from bottom to top. The second water seal structure 502 includes a sealing ring 502-1, which is disposed at the notch of the spline groove 210-6. The inner periphery and outer periphery of the sealing ring 502-1 elastically abut against the outer peripheral wall of the agitator shaft 300 and the inner wall of the notch of the sealing groove 210-4, respectively.

[0080] In some possible embodiments, the sealing ring 502 - 1 is limitedly engaged with the stirring shaft 300 , and the sealing ring 502 - 1 at least partially protrudes from the outer peripheral wall of the stirring shaft 300 and elastically abuts against the notch of the spline groove 210 - 6 .

[0081] Preferably, in this embodiment, the upper end of the agitator shaft 300 includes a first shaft segment and a second shaft segment, each of which decreases in diameter from bottom to top. The second shaft segment is inserted into the spline groove 210-6 and is keyed to the inner circumference of the spline groove 210-6. The second water seal structure 502 also includes a baffle 502-2 for sealing the notch of the spline groove 210-6. The baffle 502-2 is sleeved on the second shaft segment, with one side of the baffle 502-2 abutting against the bottom of the assembly groove 210-10 and the other side abutting against the upper end of the first shaft segment.

[0082] Preferably, in this embodiment, the bottom of the sealing ring 502 - 1 is at least partially protruded from the bottom of the assembly groove 210 - 10 , and the blocking piece 502 - 2 is elastically abutted against the sealing ring 502 - 1 .

[0083] By setting a second water seal structure 502 between the groove of the spline groove 210-6 and the outer periphery of the stirring shaft 300, the air tightness of the gap between the water stirring member 200 and the bottom of the barrel can be improved. At the same time, it can prevent washing water from flowing into the interior of the water stirring member 200 and prevent dirt from being deposited in the spline groove 210-6 and the cavity inside the water stirring member 200.

[0084] Preferably, in this embodiment, an annular groove is provided on the bottom of the washing tub 100. The annular groove is arranged around the assembly platform, and the lower end of the water-stirring member 200, located on the outer periphery of the assembly groove 210-10, is inserted into the annular groove. Specifically, the annular groove is provided on the outer periphery of the extension wall 100-2. When water is introduced into the washing tub 100, the wash water enters the annular groove, compressing the air in the gap between the water-stirring member 200 and the assembly platform, thereby achieving an airtight seal.

[0085] Preferably, in this embodiment, the groove wall of the annular groove on the side away from the axis of the washing tub 100 is inclined from bottom to top in a direction away from the axis of the washing tub 100 .

[0086] Preferably, in some possible embodiments, the water-stirring member 200 is injection-molded, and an injection-molded insert 250 is embedded in the water-stirring member 200. The axial cross-section of the injection-molded insert 250 is an inverted U-shape, with an opening at the lower end. The injection-molded insert 250 is coaxially embedded in the middle of the lower end of the water-stirring member 200. The inner circumference of the injection-molded insert 250 is provided with an internal spline, and the outer circumferential wall is provided with an external spline. The internal space of the injection-molded insert 250 constitutes the spline groove 210-6 of the water-stirring member 200. The water-stirring member 200 is transmission-connected to the stirring shaft 300 via the internal spline of the injection-molded insert 250. By providing the external spline, the water-stirring member 200 can be more tightly connected to the injection-molded body of the water-stirring member 200, and at the same time, the torque can be better transmitted.

[0087] Example 2

[0088] like Figure 4 As shown, the water stirring member 200 extends axially along the washing tub 100, and includes an assembly portion 210-1, and a water stirring portion 240 extending upward from the assembly portion 210-1. The assembly portion 210-1 is configured as a solid structure, and the water stirring portion 240 is at least partially configured as a hollow structure. For example, the water stirring portion 240 is a cavity configured axially from the top end toward the assembly portion 210-1.

[0089] Specifically, in this embodiment, the assembly portion 210-1 is a solid cylinder, which can increase the connection strength between the water stirring member 200 and the stirring shaft 300. The water stirring portion 240 has an integrally formed hollow structure. The water stirring portion 240 is formed on the top of the assembly portion 210-1, and the assembly portion 210-1 can also block the lower end of the hollow structure of the water stirring portion 240.

[0090] 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 arranged on the side wall of the support column 210 along the radial direction or close to the radial protrusion 110 - 1 , and a water stirring plate 230 arranged at the top of the support column 210 .

[0091] Specifically, the water-stirring rib 220 extends along the axial direction of the support column 210 in the length direction, and extends in the width direction toward the peripheral direction away from the support column 210, and can be arranged radially or deviate from the radial direction. The assembly portion 210-1 is a solid cylinder, preferably a cylinder, or a cylinder with an axial cross-section of an isosceles trapezoid. The support column 210 extends upward from the upper end surface of the assembly portion 210-1. The outer diameter of the connection between the support column 210 and the assembly portion 210-1 can be greater than the diameter of the assembly portion 210-1, or less than or equal to the diameter of the assembly portion 210-1; the outer peripheral wall of the support column 210 and the outer peripheral wall of the assembly portion 210-1 smoothly transition and extend upward.

[0092] The water-stirring portion 240 has a horizontal cross-section with a maximum radius at a predetermined height from the upper end of the assembly portion 210-1. A water-stirring disc 230 is disposed at the top of the support column 210. The maximum radius Rmax of the water-stirring portion 240 is defined by the outer periphery of the water-stirring disc 230, whose top surface is an upwardly convex curved surface. A cavity 210-9 is formed within the support column 210, similar in shape to the outer shape of the support column 210.

[0093] Preferably, the water stirring rib 220 is also configured as a hollow structure.

[0094] Further preferably, the internal space of the water stirring rib 220 is connected to the cavity 210 - 9 inside the support column 210 .

[0095] 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 .

[0096] Further preferably, in this embodiment, the assembly groove 210-10 is arranged at the bottom of the assembly part 210-1, and the lower end of the water-stirring rib 220 at least partially extends to the outer periphery of the assembly groove 210-10 and is integrally formed with the assembly part 210-1, thereby strengthening the strength of the groove wall of the assembly groove 210-10.

[0097] 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 .

[0098] Specifically, the assembly portion 210-1 and the agitator shaft 300 are circumferentially positioned by splines, rotating together, and axially positioned by screws. In this embodiment, the assembly portion 210-1 is provided with a spline groove 210-6 extending upward and coaxially from the lower end surface of the assembly portion 210-1. The spline groove 210-6 is at least partially sleeved around the upper end of the agitator shaft 300 and is keyed to the agitator shaft 300. The spline groove 210-6 is molded into the assembly portion 210-1 of the water-stirring member 200 and forms the interior space of the injection-molded insert 250.

[0099] In this embodiment, the top of the agitating member 200 is provided with an opening that communicates with the cavity 210-9 within the support column 210. A screw enters the cavity 210-9 through the opening and downwardly connects to the agitating shaft 300 keyed to the assembly portion 210-1, thereby axially securing the agitating member 200 to the agitating shaft 300. To prevent water from entering the cavity 210-9, a sealing member is installed at the opening.

[0100] Preferably, a sealing groove 210-4 is provided on the top of the water stirring member 200. 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 at the bottom of the sealing groove 210-4.

[0101] Specifically, the upper end of the assembly portion 210-1 is provided with a through-hole, preferably a threaded hole. The shank of a screw passes through the top of the assembly portion 210-1 and is tightened in the threaded hole, with the head of the screw abutting the top of the assembly portion 210-1. Operators remove and install the screw through the opening at the bottom of the sealing groove 210-4 and the cavity 210-9 of the support column 210. The screw is preferably a countersunk screw.

[0102] Preferably, in this embodiment, an axially extending assembly channel 210-3 is provided below the sealing groove 210-4. The assembly channel 210-3 extends upward from the bottom wall of the cavity 210-9 and is coaxially arranged with the support column 210. The upper end of the assembly channel 210-3 corresponds to the bottom of the sealing groove 210-4.

[0103] Preferably, the bottom of the sealing groove 210 - 4 is through-set and adapted to the inner diameter of the assembly channel 210 - 3 .

[0104] 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 .

[0105] 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 component 200. The inserting portion is inserted into the sealing groove 210-4 and has an interference fit with the sealing groove 210-4.

[0106] The top of the flat plate portion and the top of the water-stirring member 200 are in the same plane.

[0107] The sealing groove 210-4 includes a first section and a second section with increasing diameter from top to bottom. The lower end of the plug-in part is provided with a limiting protrusion protruding from the outer wall of the lower end of the plug-in part in the direction away from the axis of the water-stirring component 200. The limiting protrusion is engaged at the junction between the first section and the second end.

[0108] 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 tapered surface that tilts downward from top to bottom away from the axis of the water-stirring member 200. The shape of the limiting protrusion matches the shape between the first and second sections of the sealing groove 210-4. The outer circumferential surface of the limiting protrusion fits with the inner wall of the second section, and the top of the limiting protrusion fits with the tapered surface between the first and second sections of the limiting groove. Preferably, the bottom of the limiting protrusion is configured as a tapered 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.

[0109] In this embodiment, a sealing ridge extending circumferentially along the central portion of the plug-in portion is provided, and the plug-in portion elastically abuts against the inner wall of the first section of the sealing groove 210-4 via the sealing ridge. Preferably, the sealing ridge extends circumferentially along the plug-in portion and is provided with multiple circles spaced apart along the axial direction of the plug-in portion.

[0110] 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 .

[0111] In this embodiment, the agitating member 200 is injection molded and comprises an upper and lower shell, which are separated at the maximum radius Rmax of the agitating portion 240. The support column 210, assembly portion 210-1, and agitating ribs 220 constitute the lower shell, while the agitating plate 230 forms the upper shell. The sealing groove 210-4 is located inside the upper shell, and the assembly channel 210-3 is located within the lower shell.

[0112] In this embodiment, the upper half shell and the lower half shell are connected by welding at the maximum radius Rmax of the water stirring part 240, or the upper half shell and the lower half shell are detachably connected at the maximum radius Rmax of the water stirring part 240, and a sealing strip is set between the two for sealing.

[0113] Example 3

[0114] like Figures 5 to 7 As shown, in an embodiment of the present invention, a washing tub assembly is introduced. The washing tub assembly includes a washing tub 100 and a water stirring member 200 installed on the bottom of the washing tub 100. The washing tub assembly is applied to a washing device.

[0115] In this embodiment, the washing tub 100 is a tub without holes, which independently holds washing water during washing. The water stirring member 200 extends along the axial direction of the washing tub 100, and its lower end is rotatably mounted on the tub bottom.

[0116] In this embodiment, a drain port 100 - 32 and a drain valve 600 for keeping the drain port 100 - 32 normally closed are provided on the bottom of the barrel on the outer periphery of the water stirring member 200 .

[0117] Specifically, in this embodiment, a drain outlet 100-32 is provided on the area of ​​the barrel bottom extending outward from the lower end of the water stirring member 200 to the barrel wall, that is, the drain outlet 100-32 of the washing barrel 100 is provided on the washing surface 100-31 of the barrel bottom, and the bottom disc-shaped stirring portion is eliminated, which can avoid the water stirring member 200 hindering the washing water from flowing to the drain outlet 100-32 on the washing surface 100-31, thereby improving the drainage speed.

[0118] A drain valve is provided at the drain outlet, and the washing tub 100 is self-sealed through the drain valve 600, so that when the washing equipment is working, no water will accumulate between the washing tub 100 and the water collection device, thereby preventing contamination. At the same time, it is also an application of water-saving technology for users. In addition, after the washing tub 100 is self-sealed through the drain valve 600, the washing tub 100 and the water stirring member 200 can rotate relative to each other, realizing the function of dual-power washing clothes.

[0119] In this embodiment, a driving component is provided at the bottom of the water collection device, corresponding to the drain valve 600. The driving component is used to drive the drain valve 600 to open. When the washing machine is washing, the working end of the driving component retracts downward, separating from the valve plug 600-1 of the drain valve 600 to avoid interfering with the rotation of the washing tub 100. When the washing machine is draining, the washing tub 100 rotates to the point where the drain valve 600 corresponds to the working end of the driving component. The working end of the driving component then extends upward, pushing the valve plug 600-1 of the drain valve 600 upward, thereby opening the drain port 100-32.

[0120] Preferably, in this embodiment, the washing device further includes a locking component, which can lock and position the washing tub 100. After the locking component locks the washing tub 100, it is easier for the driving component to drive the drain valve 600 to open, ensuring normal drainage.

[0121] In this embodiment, the specific structure of the locking component of the washing device can adopt the structure of the locking component in the existing dual-power washing device.

[0122] Preferably, Figure 5 and Figure 6 As shown, in this embodiment, a valve cover 800 is provided on the inner surface of the barrel bottom and covers the drain outlet 100-32, and a hollow hole 803 for washing water to pass through is provided on the wall of the valve cover 800.

[0123] In this embodiment, by providing a valve cover 800 on the inner surface of the tub bottom, wash water is discharged through the hollow holes 803 in the valve cover 800. This prevents debris such as clothing and lint from entering the tub 100, thereby preventing the clothing from obstructing the drain valve 600 from closing the drain outlet 100-32. This improves the operational stability of the drain valve 600 and filters out debris such as lint in the wash water, preventing it from entering the drain outlet 100-32 and potentially clogging the drain outlet 100-32, the drainage pipeline, and the user's home floor drain. Furthermore, by locating the drain outlet 100-32 in the area where the lower end of the water-stirring member 200 extends outwardly from the tub wall, the valve cover 800 can contact the clothing in the tub. The friction of the clothing prevents debris such as lint from clogging the hollow holes 803 in the valve cover 800, thereby ensuring efficient drainage.

[0124] At the same time, it can also enrich the structure of the washing surface 100-31 at the bottom of the barrel and improve the washing effect on clothes.

[0125] like Figure 7 As shown, in this embodiment, the valve cover 800 includes a top wall 801 and a surrounding wall 802, and the top wall 801 and the surrounding wall 802 are integrally formed to form the valve cover 800. The projection of the valve cover 800 on the bottom of the barrel covers the drain port 100-32. The lower end of the surrounding wall 802 is arranged around the drain port 100-32, and the lower end of the surrounding wall 802 abuts against the inner surface of the barrel bottom around the drain port 100-32, thereby covering the drain port 100-32 within the valve cover 800. The top wall 801 and / or the surrounding wall 802 of the valve cover 800 are provided with a hollow hole 803 for draining wash water.

[0126] In this embodiment, the top wall 801 of the valve cover 800 is arranged above the drain outlet 100-32, and the surrounding wall 802 of the valve cover 800 extends downward from the edge of the top wall 801, and the lower end of the surrounding wall 802 abuts against the inner surface of the barrel bottom outside the drain outlet 100-32; the hollow hole 803 is arranged on the top wall 801 and / or the surrounding wall 802.

[0127] In this embodiment, the valve cover 800 can be of any shape as long as the drain outlet 100 - 32 can be covered within the valve cover 800 .

[0128] In some possible embodiments, the projection coverage of the top wall 801 of the valve cover 800 on the bottom of the barrel is smaller than the range of the drain outlet 100-32, and the surrounding wall 802 extends obliquely from top to bottom toward the periphery of the drain outlet 100-32, and the lower end of the surrounding wall 802 is arranged around the drain outlet 100-32.

[0129] In other possible embodiments, the coverage of the projection of the top wall 801 of the valve cover 800 on the bottom of the barrel is greater than or equal to the range of the drain outlet 100-32, and the surrounding wall 802 extends vertically from top to bottom, or the surrounding wall 802 extends obliquely from top to bottom toward the periphery of the projection of the top wall 801 on the bottom of the barrel.

[0130] In this embodiment, the top wall 801 is arranged opposite to the drain outlet 100 - 32 , and the top wall 801 can be arranged in a horizontal form, an inclined form, or a curved form.

[0131] Preferably, in this embodiment, the top wall 801 of the valve cover 800 is set to a regular plane, an arc-shaped curved surface, or a wavy curved surface to avoid the presence of four corners that are easy to harbor dirt and grime.

[0132] Preferably, in this embodiment, the top wall 801 is arranged above the drain outlet 100-32, facing the drain outlet 100-32, the projection of the top wall 801 of the valve cover 800 on the bottom of the barrel covers the drain outlet 100-32, and the surrounding wall 802 extends vertically downward from the edge of the top wall 801.

[0133] Preferably, in this embodiment, the connection between the top wall 801 and the side wall of the valve cover 800 is provided with an arc-shaped chamfer. This facilitates the passage of clothing through the valve cover 800 during the washing process, preventing the valve cover 800 from damaging the clothing. Furthermore, this further reduces the number of hard-to-clean corners on the valve cover 800.

[0134] Preferably, in this embodiment, the valve cover 800 is configured in an elongated strip shape, with the length of the valve cover 800 being perpendicular to a line connecting the rotation center of the water agitation member 200 and the center of the drain outlet 100-32. This reduces the resistance of the valve cover 800 to the laundry, improving the smoothness of laundry movement within the washing tub 100.

[0135] The top wall 801 of the valve cover 800 is configured to be curved downward. Specifically, the top wall 801 of the valve cover 800 is curved downward in a direction away from the vertical line between the rotation center of the water stirring member 200 and the center of the drain outlet 100-32. Preferably, the end of the top wall 801 of the valve cover 800 away from the vertical line between the rotation center of the water stirring member 200 and the center of the drain outlet 100-32 is substantially in contact with the inner surface of the bottom of the barrel. In this embodiment, the clothes in the barrel mainly move along the circumferential direction of the washing barrel 100 under the stirring of the water stirring member 200. Through the above-mentioned configuration, the resistance of the valve cover 800 to the rotation of the clothes can be further reduced, so that the clothes can pass smoothly through the area where the valve cover 800 is located.

[0136] In this embodiment, the top wall 801 of the valve cover 800 is basically in contact with the inner surface of the barrel bottom, away from the end of the vertical line between the rotation center of the water-stirring member 200 and the center of the drain outlet 100-32. Specifically, the end of the upper end surface of the valve cover 800 and the inner surface of the barrel bottom can be smoothly transitioned, or the end of the upper end surface of the valve cover 800 is slightly higher than the inner surface of the barrel bottom, thereby further reducing the resistance of the valve cover 800 to the circumferential movement of the clothes in the washing barrel 100.

[0137] Preferably, in this embodiment, the upper end surfaces of the valve cover 800 at both ends are smoothly transitioned to the inner surface of the barrel bottom through a rounded corner or a downwardly inclined slope that bends downward in the direction away from the vertical line between the rotation center of the water stirring member 200 and the center of the drain outlet 100-32.

[0138] Further preferably, the width of the valve cover 800 gradually decreases in a direction away from a vertical line between the rotation center of the water-stirring member 200 and the center of the drain outlet 100 - 32 .

[0139] In this embodiment, through the above-mentioned arrangement, when the clothes pass through the area on the inner surface of the barrel bottom where the valve cover 800 is located, they can move smoothly along the upper end surface of the valve cover 800, the side close to the water-stirring component 200, and the side away from the water-stirring component 200. On the one hand, it can facilitate the passage of clothes through this area. On the other hand, it can utilize the contact and friction between the clothes and the valve cover 800 to avoid dirt from adhering to the valve cover 800, and avoid the formation of dead corners that are difficult to clean on the washing surface 100-31 of the barrel bottom due to the arrangement of the valve cover 800.

[0140] Still more preferably, in this embodiment, the valve cover 800 is bilaterally symmetrical with respect to a vertical line between the rotation center of the water-stirring member 200 and the center of the drain outlet 100 - 32 .

[0141] In this embodiment, the valve cover 800 is spaced apart from the water stirring member 200 at one end and the barrel wall at the other end, and the valve cover 800 is spaced apart from the barrel wall at both ends of the vertical line between the rotation center of the water stirring member 200 and the center of the drain outlet 100-32 at the other end, so that clothes can pass smoothly between the water stirring member 200 and the valve cover 800 and between the valve cover 800 and the barrel wall, avoiding the situation where clothes are stuck.

[0142] In this embodiment, the drain outlet 100-32 can be of any shape. Preferably, the drain outlet 100-32 is circular or elliptical. The center of the drain outlet 100-32 is the center of the circular drain outlet 100-32, or the midpoint of the line connecting the two foci of the elliptical drain outlet 100-32. The vertical line between the rotation center of the water-stirring member 200 and the center of the drain outlet 100-32 is perpendicular to the rotation center of the water-stirring member 200.

[0143] Preferably, in this embodiment, the water stirring member 200 is coaxially arranged with the washing tub 100 , and a vertical line between the rotation center of the water stirring member 200 and the center of the drain outlet 100 - 32 extends along the radial direction of the washing tub 100 .

[0144] In this embodiment, the hollow holes 803 on the wall of the valve cover 800 include a first hollow hole 8031 ​​arranged on the top wall 801 of the valve cover 800, and a second hollow hole 8032 arranged on the surrounding wall 802 of the valve cover 800. There are multiple first hollow holes 8031 ​​and second hollow holes 8032 respectively.

[0145] In this embodiment, the first hollow hole 8031 ​​and the second hollow hole 8032 are both small holes, which can prevent debris such as lint in the washing water from passing through to a certain extent. The first hollow hole 8031 ​​and the second hollow hole 8032 can be of any shape.

[0146] Preferably, in some specific embodiments of the present invention, the first hollow hole 8031 ​​and the second hollow hole 8032 can be small circular holes, can be strip-shaped holes, or can be a plurality of coaxially arranged annular holes.

[0147] In this embodiment, the first hollow hole 8031 ​​is a small round hole, and the second hollow hole 8032 is configured as a grille hole.

[0148] Specifically, in this embodiment, the second hollow hole 8032 is set at the lower end of the surrounding wall 802, and is U-shaped with the opening facing downward, and is formed by being recessed upward from the lower end surface of the surrounding wall 802. There are multiple second hollow holes 8032 arranged along the length direction of the surrounding wall 802.

[0149] When the valve cover 800 is mounted on the tub bottom, the lower end of the surrounding wall 802 of the valve cover 800 abuts against the inner surface of the tub bottom, which seals the opening of the U-shaped second hollow hole 8032 to form a grille. This allows wash water to flow between the cavity of the valve cover 800 and the washing tub 100 during the washing process, improving the flushing effect within the valve cover 800 and ensuring drainage, allowing all wash water in the washing tub 100 to be discharged through the second hollow hole 8032.

[0150] In some possible embodiments, the hollow holes may be distributed throughout the entire valve cover. Specifically, the first hollow holes may cover the entire top wall of the valve cover, and the second hollow holes may cover the entire surrounding wall of the valve cover. The hollow holes may also be concentrated in a certain area of ​​the top wall and / or surrounding wall.

[0151] Preferably, in this embodiment, the second hollow holes 8032 are concentratedly arranged on a side of the surrounding wall 802 of the valve cover 800 close to the water stirring member 200 and a side away from the water stirring member 200, which can improve drainage efficiency.

[0152] Further preferably, in this embodiment, the first hollow holes 8031 ​​are concentratedly arranged in the middle of the top wall 801 of the valve cover 800.

[0153] Still more preferably, the first hollow holes 8031 ​​are concentratedly arranged within a range covered by a vertical projection of the drain outlet 100 - 32 on the top wall 801 of the valve cover 800 .

[0154] In this embodiment, the top wall 801 of the valve cover 800 is configured to be bent downward, which can further increase the layout area for setting the first hollow holes 8031, which is conducive to increasing the number of the first hollow holes 8031.

[0155] In this embodiment, the valve cover 800 is detachably mounted on the bottom of the barrel.

[0156] In a specific embodiment of the present invention, the valve cover 800 is mounted on the bottom of the barrel by screws. Specifically, the valve cover 800 is fixed by at least two screws. A vertically downwardly extending connection groove 804 is provided on the top wall 801 of the valve cover 800, near both ends of the valve cover 800. The bottom of the connection groove 804 is provided with a through hole for the screw shaft to pass through. Preferably, the inner wall of the through hole is provided with an internal thread that matches the external thread on the screw shaft. The barrel bottom is provided with a threaded hole that matches the screw. The screw shaft passes through the through hole on the bottom of the connection groove 804 and is tightened into the threaded hole on the barrel bottom. The head of the screw is embedded in the connection groove 804 and abuts against the bottom of the connection groove 804, thereby achieving the installation of the valve cover 800. At the same time, the connection groove 804 can hide the head of the screw, preventing the screw head from damaging clothing.

[0157] In this embodiment, the drain valve 600 includes a valve plug 600 - 1 and an elastic component for driving the drain valve 600 to close.

[0158] In this embodiment, the valve plug 600-1 is arranged at the drain outlet 100-32, and the sealing part of the valve plug 600-1 is arranged in the cavity of the valve cover 800, moving from top to bottom to block the drain outlet 100-32; the elastic component is arranged between the valve plug 600-1 and the bottom of the barrel to drive the valve plug 600-1 to move downward.

[0159] Specifically, the shape of the sealing part of the valve plug 600-1 is adapted to the shape of the drain outlet 100-32, and the outer peripheral wall of the sealing part is inclined from top to bottom toward the center of the sealing part. The valve plug 600-1 is inserted into the drain outlet 100-32 from top to bottom, and the sealing part is at least partially inserted into the drain outlet 100-32. The outer peripheral wall of the sealing part elastically abuts against the drain outlet 100-32 to close the drain outlet 100-32.

[0160] Preferably, in this embodiment, the inner diameter of the upper end of the drain port 100-32 gradually decreases from top to bottom, and the sealing portion of the valve plug 600-1 is embedded in the upper end of the drain port 100-32 from top to bottom to seal the drain port 100-32. Preferably, the upper end surface of the valve plug 600-1 is substantially flush with the inner surface of the barrel bottom surrounding the drain port 100-32.

[0161] In this embodiment, the upper end surface of the valve plug 600-1 is basically flush with the inner surface of the barrel bottom around the drain outlet 100-32. The upper end surface of the valve plug 600-1 can be flush with the inner surface of the barrel bottom around the drain outlet 100-32, or the upper end surface of the valve plug 600-1 can be slightly higher than the inner surface of the barrel bottom around the drain outlet 100-32, or the upper end surface of the valve plug 600-1 can be slightly lower than the inner surface of the barrel bottom around the drain outlet 100-32.

[0162] In this embodiment, when the drain valve 600 is opened, the sealing portion of the valve plug 600-1 moves into the cavity of the valve cover 800, and the washing water enters the cavity of the valve cover 800 from the hollow hole 803 on the valve cover 800, and then flows out from the drain port 100-32.

[0163] In a specific embodiment of the present invention, the drain valve 600 also includes a supporting component, which is fixedly installed at the bottom of the washing tub 100 and extends to the bottom of the drain outlet. The valve plug 600-1 of the drain valve 600 can be relatively slidably installed on the supporting component.

[0164] The supporting component includes a fixing part and a sleeve part. The fixing part is fixedly installed at the bottom of the washing bucket 100 and extends to the bottom of the drain outlet. It is fixedly connected to the sleeve part, and the sleeve part has a hollow slide. The valve plug 600-1 of the drain valve 600 includes a sealing part and a sliding rod. The sliding rod is slidably arranged in the hollow slide of the sleeve part to realize the sealing part to block / conduct the drain outlet.

[0165] The sealing portion further comprises a sealing gasket which is an annular structure and is arranged on the outer peripheral wall of the sealing portion. The sealing portion abuts against the inner wall of the drain outlet through the sealing gasket.

[0166] To maintain the sealing portion's self-sealing function and restore its seal after drainage, drain valve 600 includes an elastic component. One end of the elastic component abuts against the support component, and the other end abuts against valve plug 600-1. This elastic component deforms when the sealing portion slides away from the drain outlet, achieving elastic restoration of the sealing portion. Initially, the elastic component is compressed, maintaining the sealing portion's seal against the upper end of the drain outlet.

[0167] As an implementation of this embodiment, the elastic component is a compression spring, which is sleeved in the hollow slide of the sleeve portion. One end of the compression spring stops at the sleeve portion, and the other end stops at the bottom of the valve plug 600-1.

[0168] Furthermore, a screw is installed at the end of the sliding rod, and the upper end of the sleeve portion has a limit step extending a certain distance toward the inside of the hollow slideway. The compression spring is sleeved on the center rod, with one end resting on the screw and the other end resting on the limit step.

[0169] Example 4

[0170] In this embodiment, a washing device is further provided 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.

[0171] In this embodiment, the water stirring member 200 extends upward from the bottom of the washing tub 100 and is rotatably disposed in the washing tub 100. The middle or top of the water stirring member 200 has a point with the largest radius. The point with the largest radius of the water stirring member 200 faces the bottom of the tub, and the space between the two is used for washing clothes.

[0172] Specifically, the washing machine described in this embodiment includes a washing tub 100, a water-stirring member 200, and a driving device. The water-stirring member 200 is rotatably disposed within the washing tub 100, having a predetermined height along the axial direction of the washing tub 100 and a maximum radius along the radial direction of the washing tub 100 at a predetermined distance from the inner surface of the bottom of the washing tub 100. This predetermined distance allows laundry to be washed below the location of the maximum radius Rmax of the water-stirring member 200. The driving device is in transmission connection with the washing tub 100 and the water-stirring member 200, respectively. During washing, the driving device drives the washing tub 100 and the water-stirring member 200 to rotate simultaneously or alternately, thereby moving the laundry within the tub for washing.

[0173] More specifically, in this embodiment, the driving device drives the washing tub 100 and the water-stirring member 200 via a deceleration clutch device. The deceleration clutch device includes a stirring shaft 300 connected to the water-stirring member 200 and a dehydration shaft connected to the washing tub 100. During washing, the deceleration clutch device performs a washing operation. Driven by the driving device, the stirring shaft 300 and the dehydration shaft rotate simultaneously or alternately. In the case of simultaneous rotation, at least one of the rotation direction and speed differs, thereby driving relative rotation between the water-stirring member 200 and the washing tub 100 for washing. During dehydration, the deceleration clutch device performs a dehydration operation. Driven by the driving device, the stirring shaft 300 and the dehydration shaft rotate synchronously at high speed, thereby driving the water-stirring member 200 and the washing tub 100 to rotate synchronously at high speed for dehydration.

[0174] In the above solution, the specific structure of the deceleration clutch device can adopt the structure of the deceleration clutch in the existing dual-power washing equipment.

[0175] In this embodiment, the relative rotation between the washing tub 100 and the water-stirring member 200 during the washing process can be utilized to drive the clothes in the tub to move in an area below the maximum radius Rmax of the water-stirring member 200 for washing. On the one hand, the clothes can fully contact the outer surface of the water-stirring member 200 and the inner wall of the washing tub 100 below the maximum radius Rmax, effectively avoiding the problem of dirt and grime easily accumulating between the water-stirring member 200 and the bottom of the tub, making it difficult to clean, thereby improving the user experience. On the other hand, some or all of the clothes are below the maximum radius Rmax of the water-stirring member 200 during washing, rather than covering a large area above the water-stirring member 200. This can significantly reduce the resistance of the clothes to the rotation of the water-stirring member 200, thereby helping to reduce the energy consumption of the motor used by the drive device to drive the water-stirring member 200 to rotate.

[0176] As a specific embodiment, during the washing process, the driving device drives the washing tub 100 and the water stirring member 200 to rotate in opposite directions to perform washing.

[0177] Specifically, during washing, the driving device drives the water stirring member 200 to rotate alternately forward and reverse, and simultaneously drives the washing tub 100 to rotate alternately forward and reverse in the opposite direction of the water stirring member 200. When the water stirring member 200 rotates clockwise, the washing tub 100 rotates counterclockwise; conversely, when the water stirring member 200 rotates counterclockwise, the washing tub 100 rotates clockwise.

[0178] In the above embodiment, when the washing tub 100 and the water stirring member 200 rotate in opposite directions, their rotational speeds can be the same or different. In a preferred embodiment, the washing tub 100 and the water stirring member 200 rotate in opposite directions at different rotational speeds, wherein the rotational speed of the water stirring member 200 is greater than the rotational speed of the washing tub 100.

[0179] As another specific embodiment, during the washing process, the driving device drives the washing tub 100 and the water stirring member 200 to rotate in the same direction at different speeds for washing. For example, the speed of the washing tub 100 is lower than the speed of the water stirring member 200. In this way, relative rotation can also be formed between the washing tub 100 and the water stirring member 200.

[0180] Similar to the previous embodiment, the washing tub 100 and the water stirring member 200 also rotate in a forward and reverse alternating manner during the washing process. That is, the washing tub 100 and the water stirring member 200 rotate clockwise at different speeds at the same time, and then rotate counterclockwise at the same time, repeating the cycle.

[0181] As another specific embodiment, during the washing process, the driving device drives the washing tub 100 and the water-stirring member 200 to rotate alternately, that is, the washing tub 100 remains stationary when the water-stirring member 200 is driven to rotate, and the water-stirring member 200 remains stationary when the washing tub 100 is driven to rotate. In this way, relative rotation can also be generated between the washing tub 100 and the water-stirring member 200.

[0182] It should be noted that, in the embodiment of the present invention, the radius of the water-stirring member 200 refers to the distance from the farthest point from the rotation center to the rotation center on the horizontal cross section of the water-stirring member 200 .

[0183] Specifically, if the cross section of the agitating member 200 is circular, the radius is the radius R1 of the circular cross section. If the cross section of the agitating member 200 is non-circular, the radius is the distance R2 from the farthest point on the cross section to the rotation center.

[0184] In a further solution of this embodiment, the water-stirring member 200 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 water-stirring member 200 at the maximum radius Rmax, so that the clothes can be washed above the position of the water-stirring member 200 at the maximum radius Rmax.

[0185] In the above solution, the washing tub 100 can accommodate clothes for washing both above and below the water-stirring member 200 at the maximum radius Rmax. In this way, the outer surface of the water-stirring member 200 can basically contact the clothes to be washed, generating friction with the clothes, and the washing effect can be enhanced by increasing the surface area in contact with the clothes.

[0186] In this embodiment, the water-stirring component 200 includes a support column 210, which extends along the axial direction of the washing tub 100 and is coaxially arranged with the washing tub 100, and a water-stirring rib 220 arranged on the circumferential side of the support column 210 and extending along the axial direction of the support column 210. The lower end of the support column 210 is rotatably engaged with the bottom of the washing tub 100.

[0187] A mounting hole is provided at the center of the bottom of the washing tub 100, and the stirring shaft 300 for driving the water stirring member 200 to rotate is rotatably passed through the mounting hole. The lower end of the support column 210 is mounted on the upper end of the stirring shaft 300 and is connected to the stirring shaft 300 through a spline to achieve circumferential positioning; the support column 210 and the stirring shaft 300 are axially positioned by screws or a clamping structure.

[0188] The water stirring member 200 may be entirely disposed above the inner surface of the bottom of the washing tub 100 , or the lower end of the support column 210 of the water stirring member 200 may be at least partially inserted into the inner surface of the bottom of the washing tub 100 .

[0189] Preferably, the area of ​​the barrel bottom extending outward from the lower end of the support column 210 to the barrel wall is the washing surface 100-31, that is, when washing clothes, the area of ​​the barrel bottom extending outward from the lower end of the support column 210 to the barrel wall can contact the clothes in the barrel, that is, the clothes in the washing barrel 100 can reach the outer periphery of the lower end of the support column 210.

[0190] In this embodiment, by setting a water stirring member 200 to rotate with the bottom of the washing tub 100 through the support column 210, the bottom disc-shaped stirring portion 231 is eliminated, and the area of ​​the bottom of the tub extending outward from the lower end of the support column 210 to the tub wall is set as the washing surface 100-31, so that the clothes can come into contact and friction with the area of ​​the bottom of the tub extending outward from the lower end of the support column 210 to the tub wall, thereby avoiding the accumulation of dirt.

[0191] In a specific solution of this embodiment, the washing surface 100 - 31 occupies 90% or more of the total area of ​​the bottom of the washing tub 100 , and preferably 95% or more of the total area of ​​the bottom of the washing tub 100 .

[0192] In this embodiment, the water stirring member 200 has a maximum radius along the radial direction of the washing tub 100 at a certain distance from the inner surface of the tub bottom, and a first guide surface 213 is formed on the lower side thereof, extending from the area close to the axis toward the periphery, for guiding the clothes below this area to move toward the periphery along the first guide surface 213 during washing; a second guide surface 214 is formed below the first guide surface 213, extending upward, for guiding the clothes to move along the second guide surface 214 toward the first guide surface 213 during washing.

[0193] Specifically, in this embodiment, the water stirring component 200 includes a support column 210 coaxially arranged with the washing tub 100, and a water stirring rib 220 protruding from the side wall of the support column 210; clothes can be washed in the space formed by the bottom of the washing tub 100, the side wall of the support column 210 and the wall of the washing tub 100.

[0194] The support column 210 is arranged to change diameter axially below the maximum diameter of the water-stirring member 200, and includes a first extension section 211 and a second extension section 212 connected to each other; the side wall of the first extension section 211 extends upward from the bottom of the washing tub 100, and is used to guide the clothes to move toward the maximum diameter of the water-stirring member 200 during washing; the side wall of the second extension section 212 extends from the upper end of the first extension section 211 toward the periphery and tilts upward, extending to the height of the maximum diameter of the water-stirring member 200, and is used to guide the clothes below this point to move toward the periphery during washing.

[0195] The side wall of the first extending section 211 constitutes the second guiding surface 214 , and the side wall of the second extending section 212 constitutes the first guiding surface 213 .

[0196] Specifically, the water stirring member 200 provided in this embodiment is applied to a washing machine. During washing, the water stirring member 200 rotates relative to the washing tub 100, causing the clothes to move along the bottom of the washing tub 100 toward the center, then upward along the second guide surface 214 to the first guide surface 213. Guided by the first guide surface 213, they move toward the periphery and then fall near the wall of the washing tub 100, forming a circular path. This not only enhances the tumbling of the clothes within the tub, thereby improving the washing effect, but also reduces the probability of clothes converging toward the center and becoming tangled.

[0197] Preferably, in this embodiment, the water stirring rib 220 has a certain extension length along the axial direction of the washing tub 100 , extending from the second guide surface 214 to the first guide surface 213 .

[0198] In this embodiment, a plurality of water-stirring ribs 220 are arranged at circumferential intervals along the support column 210. The spacing angle between two adjacent water-stirring ribs 220 allows clothes to be washed in the spacing area between the two adjacent water-stirring ribs 220, avoiding dead corners where dirt is easily accumulated.

[0199] Preferably, the distance between the side of the agitating rib 220 away from the axis of the agitating member 200 and the axis of the agitating member 200 increases with increasing height.

[0200] The aforementioned structure of the agitating ribs 220 creates a Coanda effect during washing, driving water along the outer edges of the agitating ribs 220. This results in the water flowing along the outer edges of the agitating ribs 220 in the area near the axis of the washing tub 100. As the height increases, the water flows more upwards rather than outwards. This enhances the lifting force of the water flow on the clothes near the axis, driving the clothes upwards to the first guide surface 213, ultimately forming a circular path.

[0201] It can be understood that during washing, the clothes moving along the bottom of the barrel toward the central area can also be lifted along the outer edge of the water-stirring rib 220 after contacting the water-stirring rib 220. After moving to the maximum radius Rmax of the water-stirring part, they move toward the periphery under the action of inertia and centrifugal force, and finally fall to the bottom of the barrel along the wall of the washing barrel 100.

[0202] In this embodiment, the washing water in the washing tub 100 rotates around the rotation center of the water stirring member 200 under the stirring of the water stirring member 200, moves toward the central area along the bottom of the washing tub 100, then moves upward along the second guide surface 214 to the first guide surface 213, moves toward the periphery under the guidance of the first guide surface 213, and then falls in an area close to the wall of the washing tub 100.

[0203] In the preferred solution of this embodiment, a smoothly transitioned rounded 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 inside the washing tub 100 to the greatest extent.

[0204] 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 corner structures that may scratch and damage clothes.

[0205] In this embodiment, by designing the specific structure of the water-stirring component 200, the side wall of the support column 210 is used to form a guiding surface that can guide the movement of clothes. Combined with the specific structure of the water-stirring rib 220, the effect of driving the clothes to move along a circular path below the maximum radius Rmax is better.

[0206] In an embodiment of the present invention, a control method for a washing device is further provided, wherein the washing device is equipped with the above-mentioned washing tub assembly. The control method for the washing device comprises:

[0207] During the drainage process of the washing tub 100, the water stirring member 200 rotates to speed up the drainage.

[0208] Preferably, in this embodiment, the washing machine detects the drainage speed during the drainage process. When the drainage speed slows, the water stirring member 200 is driven to rotate to agitate the clothes. Alternatively, when the washing machine detects that the drainage has timed out, the water stirring member 200 is driven to rotate to agitate the clothes. Alternatively, during the drainage process, the washing machine drives the water stirring member 200 to rotate intermittently or continuously to prevent clothes from clogging or blocking the drain outlet 100-32.

[0209] In this embodiment, the side of the water stirring member 200 is configured such that as the height of the rotation axis increases, the distance between the side of the water stirring member 200 and the wall of the washing tub 100 remains constant or changes gradually or stepwise.

[0210] As a specific embodiment, the water-stirring member 200 has a single maximum radius point in the height direction. Furthermore, at least below the maximum radius point, as the height increases, the distance between the side of the water-stirring member 200 and the wall of the washing tub 100 decreases.

[0211] It should be noted that the single point with the largest radius may refer to the point with the largest radius of the water-stirring member 200 at a specific height position, or may refer to the point with the largest radius of the water-stirring member 200 within a certain continuous height range.

[0212] In the first specific solution, the point with the largest radius of the water-stirring member 200 is set at the top of the water-stirring member 200, that is, the top surface of the water-stirring member 200 is the cross-section with the largest radius.

[0213] In a second embodiment, the maximum radius of the agitating member 200 is close to the top of the agitating member 200, but is a certain distance away from the top of the agitating member 200. Specifically, the upper surface of the agitating member 200 at the maximum radius is an upwardly convex curved surface, and the highest point of the curved surface forms the top of the agitating member 200.

[0214] In the third specific solution, the largest radius of the water-stirring member 200 is located in the middle of the water-stirring member 200 along the height direction.

[0215] In one detailed embodiment, the distance between the side of the water stirring member 200 and the wall of the washing tub 100 continuously changes in the height direction. Specifically, as the height increases, the diameter of the water stirring member 200 gradually increases from the bottom of the washing tub 100 upward until it reaches the maximum radius, after which the diameter of the water stirring member 200 gradually decreases until it reaches the top of the water stirring member 200.

[0216] In another detailed embodiment, the distance between the side of the water-stirring member 200 and the wall of the washing tub 100 changes abruptly at at least one height. Specifically, as the height increases, the diameter of the water-stirring member 200 gradually increases from the bottom of the washing tub 100 upwards. At a certain height, the diameter suddenly increases, forming the maximum radius. The diameter of the water-stirring member 200 then remains constant within a certain height range before suddenly decreasing, and then continues to gradually decrease, ultimately forming the top of the water-stirring member 200. In this embodiment, the distance from the maximum radius of the water-stirring member 200 to the bottom of the washing tub 100 refers to the distance from the lowest height within the height range where the diameter of the water-stirring member 200 remains constant to the bottom of the washing tub 100.

[0217] In another specific embodiment, the water-stirring member 200 has a plurality of maximum radii spaced apart along the axis of the washing tub 100. Specifically, as the height increases, the diameter of the water-stirring member 200 alternately increases and decreases, each time increasing to the same diameter and then decreasing, thereby forming a plurality of maximum radii spaced apart.

[0218] In a further embodiment of this embodiment, the maximum radius of the agitating member 200 is positioned at a height between the highest and lowest water levels of the washing machine. This allows the rotation of the agitating member 200 to generate different water flow patterns to move the laundry during washing at different water levels. In particular, as a specific embodiment, below the maximum radius of the agitating member 200, the laundry can be moved along a circular path during washing.

[0219] The circular path mentioned above means that the water moves toward the center of the bottom area of ​​the washing tub 100, is lifted by the water stirring member 200 to a position close to the maximum radius of the water stirring member 200, moves toward the periphery, and then falls.

[0220] As a specific solution, the circular path of the clothes moving below the maximum radius of the water-stirring member 200 during washing includes: the clothes move along the bottom of the washing tub 100 toward the central area, move upward along the side of the water-stirring member 200 in the central area to below the maximum radius and then move toward the periphery, and move downward in the area close to the wall of the washing tub 100.

[0221] In a further embodiment of the present invention, the water-stirring member 200 includes a support column 210 coaxially arranged with the washing tub 100, and a water-stirring rib 220 protruding from the side wall of the support column 210. The direction of the water-stirring rib 220 and the protrusion on the side wall of the support column 210 coincide with the radial direction of the washing tub 100, or form an angle of 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 direction of rotation, which can achieve an effective stirring effect. The support column 210 is used to transmit the drive device connected to the washing equipment, so that the water-stirring member 200 can rotate under the drive of the drive device. The water-stirring rib 220 rotates in the washing tub 100 as the water-stirring member 200 does, stirring the clothes and water flow in the tub. The bottom of the washing tub 100, the side walls of the support column 210 and the walls of the washing tub 100 together form a space that can accommodate the laundry during washing, and the laundry can move along the above-mentioned annular path in the space.

[0222] The water-stirring member 200 has the above-mentioned structure, and the side surface of the water-stirring member 200 includes both the side wall of the support column 210 and the surface on the water-stirring rib 220 farthest from the rotation axis. The radius is the distance from the point on the water-stirring rib 220 farthest from the rotation axis to the center of rotation.

[0223] When the washing tub assembly of this embodiment is applied to a washing machine, in a specific implementation, when operating at a low water level lower than the maximum radius of the water stirring member 200, the clothes can move in the water along the circular path described above.

[0224] Specifically, during the washing process, relative rotation occurs between the water-stirring member 200 and the washing tub 100. The clothes move toward the central area along the bottom of the washing tub 100 in the space below the maximum radius of the water-stirring member 200 and gather in the space. In the central area, they are lifted to the bottom of the maximum radius along the side wall of the support column 210 or the outer edge of the water-stirring rib 220, and then move toward the periphery. After that, they fall to the bottom of the tub in the area close to the wall of the washing tub 100, forming a circular motion.

[0225] When operating at a high water level higher than the maximum radius of the water stirring member 200, the clothes move along the above-mentioned circular path in the water in the area below the maximum radius of the water stirring member 200; and in the area above the maximum radius of the water stirring member 200, the clothes move close to the circumferential direction of the washing tub 100.

[0226] Specifically, during the washing process, the agitating member 200 and the washing tub 100 rotate relative to each other. In the area below the maximum radius of the agitating member 200, the movement path of the clothes is essentially the same as that at low water levels. In the area above the maximum radius of the agitating member 200, the clothes move alternately forward and reverse along the circumference of the washing tub 100 as the agitating member 200 rotates alternately forward and reverse.

[0227] In the above solution, when using different wash water levels, the agitating member 200 can move the clothes in the tub in different ways for washing, providing more diverse washing options. Furthermore, in the area below the maximum radius of the agitating member 200, the clothes move in a circular path, which not only enhances the tumbling of the clothes and improves the washing effect, but also avoids the problem of clothes tending to gather in the center of the drum and causing entanglement in existing pulsator washing machines.

[0228] Regarding the solution in which the maximum radius of the agitating member 200 is located at or close to the top of the agitating member 200 , as a specific implementation, the maximum radius of the agitating member 200 is formed by the upper end of the outer peripheral edge of the agitating rib 220 .

[0229] Example 5

[0230] like Figure 8 As shown, this embodiment provides a washing tub assembly of a washing device, and a washing device having the washing tub assembly. In this embodiment, below the maximum radius of the water-stirring member 200, the distance between the side wall of the support column 210 and the tub wall of the washing tub 100 decreases as the height increases.

[0231] It should be noted that, in the embodiment of the present invention, the maximum radius of the water-stirring member 200 refers to the maximum radius of the horizontal cross-section of the water-stirring member 200, and the radius of the horizontal cross-section of the water-stirring member 200 refers to the distance from the farthest point from the center of rotation to the center of rotation on the horizontal cross-section of the water-stirring member 200 taken along the horizontal direction.

[0232] Specifically, if the horizontal cross-section of the agitating member 200 is circular, the radius is the radius R1 of the circular cross-section. If the horizontal cross-section of the agitating member 200 is non-circular, the radius is the distance R2 from the farthest point on the cross-section to the rotation center.

[0233] In this embodiment, a raised water-stirring rib 220 is provided on the sidewall of the support column 210. The radial dimension of the water-stirring rib 220 can remain constant as the height of the washing tub 100 increases, or it can change gradually or stepwise. Since the distance between the sidewall of the support column 210 and the wall of the washing tub 100 decreases as the height increases, the distance between the side of the water-stirring member 200 and the wall of the washing tub 100 decreases as the height increases.

[0234] In the above structure, the radius of any horizontal cross section of the water-stirring member 200 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 cross section.

[0235] In another embodiment, the agitating ribs extend spirally along the sidewall surrounding the support column. In this case, the horizontal cross-section of the agitating member 200 may not form a regular geometric shape, but the radius of the horizontal cross-section of the agitating member 200 is still the distance from the farthest end of the agitating ribs from the axis to the central axis in the cross-section.

[0236] In this embodiment, clothes can also be washed in the space formed by the bottom of the washing tub 100, the side walls of the support column 210 and the walls of the washing tub 100.

[0237] In a specific embodiment of this embodiment, the support column 210 includes a first extension section 211 and a second extension section 212, which are arranged below and connected to the maximum radius of the water-stirring member 200. The sidewalls of the first extension section 211 extend upward and tilt from the bottom of the washing tub 100, gradually approaching the tub wall of the washing tub 100. The sidewalls of the second extension section 212 extend from the upper end of the first extension section 211 toward the periphery and tilt upward to the height of the maximum radius of the water-stirring member 200. This allows laundry to be washed below the sidewalls of the second extension section 212 and move toward the periphery along the sidewalls of the second extension section 212.

[0238] More specifically, the sidewalls of the first extension section 211 extend in a straight line and are inclined outward at a slight angle relative to the vertical direction. The sidewalls of the second extension section 212 have a larger angle with the vertical direction than the sidewalls of the first extension section 211. Furthermore, as the height increases, the angle between the sidewalls of the second extension section 212 and the vertical direction gradually increases, forming a curved surface that bends toward the axis.

[0239] In this embodiment, the upper end of the support column 210 is also provided with a water stirring tray 230. Specifically, the upper end of the second extension section 212 is connected to the lower surface of the water stirring tray 230. The support column 210 of the water stirring member 200 has the above-described structure, which effectively reduces the problem of a cleaning dead angle between the upper end of the support column 210 and the lower surface of the water stirring tray 230, where clothes cannot reach.

[0240] 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 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 .

[0241] In the preferred embodiment of this embodiment, Figure 8 As shown, the upper surface of the water stirring tray 230 is a curved surface with a middle area higher than the outer area. A raised stirring portion 231 is provided on the curved surface. When the water level in the washing tub 100 is higher than the top of the water stirring tray 230, the stirring portion 231 rotates with the water stirring member 200 to stir the wash water above the water stirring tray 230 and rub the clothes above the water stirring tray 230, thereby enhancing the washing effect.

[0242] Furthermore, in this embodiment, the sidewall of the second extension section 212 forms a first guide surface 213 for guiding the clothes below it to move toward the periphery along the first guide surface 213 during washing. The sidewall of the first extension section 211 forms a second guide surface 214 for guiding the clothes to rise along the second guide surface 214 to the first guide surface 213 during washing.

[0243] Specifically, during washing, the washing machine using the washing tub assembly described in this embodiment rotates the water agitating member 200 relative to the washing tub 100, causing the laundry to move along the bottom of the washing tub 100 toward the center, then upward along the first guide surface 213 to the second guide surface 214. Guided by the second guide surface 214, the laundry moves toward the periphery before falling near the wall of the washing tub 100, forming a circular path. This enhances the tumbling of the laundry within the tub, thereby improving the washing effect, while also reducing the likelihood of the laundry converging toward the center and becoming tangled.

[0244] 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 the two and the vertical direction is the same. In other words, 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.

[0245] In another specific embodiment, the inclination angle of the sidewall of the second extension section 212 at the lower end relative to the vertical direction is slightly higher than the inclination angle of the sidewall of the first extension section 211 relative to the vertical direction, thereby forming an angle less than but close to 180° at the junction of the first guide surface 213 and the second guide surface 214. This provides a certain cushioning effect on the clothing as it moves upward along the second guide surface 214 to the first guide surface 213, enhancing the tendency of the clothing to roll toward the periphery.

[0246] In a further embodiment of this embodiment, the agitating ribs 220 extend a certain 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 agitating ribs 220 are spaced apart circumferentially around the support column 210, and the angle between adjacent agitating ribs 220 allows laundry to be washed in the area between the adjacent agitating ribs 220 while allowing the laundry to contact the sidewall of the first extension section 211, thereby moving upward along the sidewall of the first extension section 211, i.e., the second guide surface 214.

[0247] In this way, the area of ​​the side walls of the first extension section 211 and the second extension section 212 located between two adjacent water-stirring ribs 220 can come into contact with the clothes, and no dead corner where dirt is easily accumulated is generated.

[0248] Furthermore, in this embodiment, the radial dimension of the water-stirring rib 220 along the washing tub 100 first increases and then decreases from the lower end to the upper end.

[0249] In one specific embodiment, the cross-section of the water-stirring rib 220 parallel to the radial direction of the washing tub 100 is approximately fusiform. The outer edge of the water-stirring rib 220 extends from bottom to top, and the angle between the extension direction and the vertical direction gradually decreases, so that the outer edge of the water-stirring member 200 forms a curve that bends toward the wall of the washing tub 100. The upper end of the outer edge of the water-stirring rib 220 coincides with the outer periphery of the water-stirring tray 230.

[0250] The aforementioned structure of the agitating ribs 220 creates a Coanda effect during washing, driving water along the outer edges of the agitating ribs 220. This results in the water flowing along the outer edges of the agitating ribs 220 in the area near the axis of the washing tub 100. As the height increases, the water flows more upwards rather than outwards. This enhances the lifting force of the water flow on the clothes near the axis, driving the clothes upwards to the first guide surface 213, ultimately forming a circular path.

[0251] It can be understood that the clothes moving along the bottom of the barrel toward the central area can also be lifted along the outer edge of the water-stirring rib 220 after contacting the water-stirring rib 220. After moving to the maximum radius of the water-stirring component 200, they move toward the periphery under the action of inertia and centrifugal force, and finally fall to the bottom of the barrel along the wall of the washing barrel 100.

[0252] In the preferred embodiment, the water stirring member 200 is installed in the washing tub 100, and there is a certain distance between the lower end of the water stirring rib 220 and the bottom of the washing tub 100 to avoid a cleaning dead corner between the water stirring rib 220 and the bottom of the tub.

[0253] More preferably, a smoothly transitioned rounded 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 inside the washing tub 100 to the greatest extent.

[0254] 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 corner structures that may scratch and damage clothes.

[0255] As a specific embodiment, 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 area of ​​the water-stirring rib 220 is greater than the thickness at the upper and lower ends.

[0256] In this embodiment, the distance between the side of the water-stirring member 200 and the wall of the washing tub 100 varies due to the varying cross-sectional dimensions of the support column 210 itself. This also creates a structure where the point of maximum radius is a certain distance from the bottom of the washing tub 100, ensuring that clothes can be washed below the point of maximum radius of the water-stirring member 200. Furthermore, the sidewalls of the support column 210 form a first guide surface 213 and a second guide surface 214 that guide the movement of clothes during washing. This effectively drives clothes to move and turn along a circular path below the point of maximum radius of the water-stirring member 200, resulting in better washing results and preventing clothes from becoming entangled.

[0257] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. Any technician familiar with this patent can make some changes or modifications to equivalent embodiments using the above technical content without departing from the scope of the technical solution of the present invention. The implementation schemes in the above embodiments can be further combined or replaced. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the solution of the present invention.

Claims

1. A washing device comprising a washing tub (100) and a water stirring member (200) rotatably arranged in the washing tub (100), characterized in that: An upwardly protruding assembly platform is provided on the inner surface of the bottom of the washing tub (100); a mounting groove (210-10) whose inner diameter matches the outer diameter of the mounting platform is provided at the bottom of the water stirring member (200); the water stirring member (200) is sleeved on the mounting platform through the mounting groove (210-10), and a gap is formed between the water stirring member (200) and the mounting platform, which first extends upward and then extends toward the axis of the washing tub (100); the gap is closed at one end close to the axis of the washing tub (100).

2. The washing equipment according to claim 1, characterized in that The device further comprises a driving device, which is connected to the water stirring member (200) through a stirring shaft (300) and is connected to the washing tub (100) through a dehydration shaft (110); a water seal structure (500) is provided between the stirring shaft (300) and the water stirring member (200), and between the dehydration shaft (110) and the washing tub (100).

3. The washing equipment according to claim 2, characterized in that The upper end of the dehydration shaft (110) is plugged into the bottom of the washing tub (100) and extends above the inner surface of the bottom of the washing tub (100); an upwardly extending extension wall (100-2) is provided on the inner surface of the bottom surrounding the dehydration shaft (110); a first water seal structure (501) is provided between the inner periphery of the extension wall (100-2) and the outer peripheral wall of the dehydration shaft (110); the extension wall (100-2), the first water seal structure (501) and the upper end of the dehydration shaft (110) constitute an assembly platform; Preferably, the upper end surface of the extension wall (100-2), the upper end surface of the first water seal structure (501), and the upper end surface of the dehydration shaft (110) are substantially flush.

4. The washing equipment according to claim 3, characterized in that The first water seal structure (501) comprises a first extension portion (500-1) sealed with the inner periphery of the extension wall (100-2), a second extension portion (500-2) sealed with the outer periphery of the dehydration shaft (110), and a third extension portion (500-11) connected between the upper ends of the first extension portion (500-1) and the second extension portion (500-2); Preferably, the first water seal structure (501) further includes a skeleton (500-3) arranged inside the first extension portion (500-1), the second extension portion (500-2) and the third extension portion (500-11).

5. The washing equipment according to claim 4, characterized in that The first water seal structure (501) is sealed and matched with the inner periphery of the extension wall (100-2) and the outer peripheral wall of the dehydration shaft (110) through the sealing lip (500-4); Preferably, the sealing lips (500-4) are respectively arranged on the outer periphery of the first extension portion (500-1) and the inner periphery of the second extension portion (500-2), and the sealing lips (500-4) on the first extension portion (500-1) and the second extension portion (500-2) are respectively arranged in at least three circles along the axial direction of the washing tub (100).

6. The washing device according to any one of claims 3 to 5, characterized in that: A radial protrusion (110-1) extending radially along the washing tub (100) is provided on the outer peripheral wall of the dehydration shaft (110); the radial protrusion (110-1) abuts against the tub bottom and is screwed to the tub bottom; the screw is provided between the extension wall (100-2) and the dehydration shaft (110).

7. The washing equipment according to claim 2, characterized in that The bottom of the water stirring member (200) is provided with a spline groove (210-6), and the upper end of the stirring shaft (300) is at least partially inserted into the spline groove (210-6) and key-connected to the water stirring member (200); A second water seal structure (502) is provided between the outer periphery of the stirring shaft (300) and the notch of the spline groove (210-6).

8. The washing equipment according to claim 7, characterized in that The second water seal structure (502) includes: The sealing ring (502-1) has an inner diameter of the notch of the spline groove (210-6) that gradually decreases from bottom to top. The sealing ring (502-1) is arranged at the notch of the spline groove (210-6), and its inner periphery and outer periphery are elastically abutted against the outer peripheral wall of the stirring shaft (300) and the inner wall of the notch of the sealing groove (210-4), respectively. Preferably, the upper end of the stirring shaft (300) includes a first shaft segment and a second shaft segment whose diameters decrease from bottom to top, and the second shaft segment is inserted into the spline groove (210-6); the second water seal structure (502) further includes a baffle (502-2) for closing the notch of the spline groove (210-6), one side of the baffle (502-2) is in contact with the bottom of the assembly groove (210-10), and the other side is in contact with the upper end of the first shaft segment.

9. The washing device according to any one of claims 1 to 5, characterized in that: An annular groove is provided on the bottom of the washing tub (100), the annular groove being arranged around the assembly platform, and the lower end of the water stirring member (200) on the outer periphery of the assembly groove (210-10) is inserted into the annular groove; Preferably, the groove wall of the annular groove on the side away from the axis of the washing tub (100) is inclined from bottom to top in a direction away from the axis of the washing tub (100).

10. The washing device according to any one of claims 1 to 5, characterized in that: The water stirring member (200) is a hollow structure, including a cavity extending axially downward from its top, and including an upper half shell and a lower half shell formed by splicing; The water stirring member (200) has a horizontal cross section with the largest radius at a certain height from the inner surface of the washing tub (100), and the upper half shell and the lower half shell are divided from the maximum radius Rmax of the water stirring member (200).

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