Tub assembly, washing device, and control method

Abstract

A tub assembly, a washing device, and a control method. The tub assembly comprises: a tub (100); and an agitator (200), which comprises a support column (210) and agitator ribs (220) extending in the axial direction of the support column (210), wherein the lower end of the support column (210) rotationally cooperates with the bottom of the tub (100); and the region of the bottom extending outward from the lower end of the support column (210) to the tub wall can serve as a washing surface (100-31), and a drain port (100-32) of the tub (100) is arranged at the washing surface (100-31) of the bottom. Because the agitator (200) rotationally cooperates with the bottom of the tub (100) by means of the support column (210), a disc-shaped agitation portion at the bottom is eliminated; and the region of the bottom extending outward from the lower end of the support column (210) to the tub wall serves as the washing surface (100-31), such that clothes can come into contact with and rub against the region of the bottom extending outward from the lower end of the support column (210) to the tub wall, which can prevent the accumulation of dirt, and can also prevent the agitator (200) from obstructing the flow of washing water to the drain port (100-32) at the washing surface (100-31), thereby improving the drainage speed.

Description

Washing tub assembly, washing equipment and control method Technical Field

[0001] The present invention belongs to the technical field of clothing processing, and in particular relates to a washing tub assembly, and also relates to a washing device having the washing tub assembly and a control method for the 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 usually includes a washing tub and a water stirring member, which is arranged at the bottom of the washing tub. When the pulsator washing machine is working, the rotation of the water stirring member drives the washing water in the washing tub to rotate, thereby washing the clothes to be washed in the washing tub. The water stirring member of an existing pulsator washing machine usually has a flat pulsator disc. On the one hand, during washing, impurities such as dirt and lint on the clothes are easily accumulated in the gap between the bottom surface of the pulsator disc and the washing tub, and cannot be effectively cleaned by simply flushing. In addition, dirt and lint are easily bred by bacteria when they are in a humid environment for a long time, which brings a bad user experience. On the other hand, when draining, the washing water needs to flow through the gap between the pulsator disc and the washing tub to the drain outlet at the bottom of the washing tub. The setting of the pulsator disc hinders the discharge of the washing water, resulting in the problem of slow drainage speed of the pulsator washing machine.

[0004] The Chinese utility model patent application number CN201520679609.6 discloses a pulsator for a washing machine, comprising a pulsator, a main body, a stirring blade, a water hole and a mounting hole. The main body is installed in the middle position of the pulsator, and the mounting hole is provided in the main body. The pulsator is installed with several stirring blades distributed along the center of the main body. A circular arc-shaped recess is provided between the main body and the stirring blade. Several water holes are installed on the top of the stirring blade. Two circular grooves are installed between the stirring blades. The circular grooves are evenly distributed on the pulsator, and a water hole is installed in the middle position of the circular groove.

[0005] In the above scheme, the drainage speed can be improved to a certain extent by providing water holes on the circular groove of the impeller and the stirring blades. However, there are still problems such as slow drainage speed and dirt accumulating in the gap between the impeller and the bottom of the barrel.

[0006] In response to the above problems, the applicant filed an invention patent application in 2019 with application number CN201910620011.2, which discloses a pulsator washing machine, including an inner drum, a pulsator, a drive shaft, and a drive device; an axial hole is provided at the bottom of the inner drum, the drive shaft is passed through the axial hole, the drive device is provided outside the inner drum, and the bottom end of the drive shaft is connected to the drive device; the pulsator is provided inside the inner drum and connected to the top end of the drive shaft, and the pulsator divides the inner drum into an upper washing chamber and a lower washing chamber; during washing, the clothes move in the upper and lower washing chambers. In the above scheme, the distance between the pulsator and the bottom of the inner drum is large, which can prevent the accumulation of dirt.

[0007] However, after several years of testing and research, the applicant discovered that, in the aforementioned structure, the upwardly extending drive shaft connected to the pulsator lacked a structure on the outside of the drive shaft to divert the water flow. Consequently, the clothes in the lower washing chamber could not be effectively turned outward during the wash cycle. In particular, the structure at the bottom of the pulsator, which extended downward from the center toward the periphery, instead caused clothes to gather in the center, causing them to easily accumulate and become entangled at the connection between the pulsator and the drive shaft.

[0008] In addition, for a holeless drum washing machine, since its drain port is set on the holeless inner drum, when draining, the drain valve opens the drain port, and the clothes in the inner drum easily enter the drain port, causing the drain valve to be unable to be completely closed, resulting in water leakage.

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

[0010] One object of the present invention is to provide a washing tub assembly to solve the problem that the bottom disc-shaped stirring portion of the existing water stirring member hinders the discharge of washing water and the gap between the bottom disc-shaped stirring portion and the tub bottom accumulates dirt and grime.

[0011] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0012] A washing tub assembly comprises: a washing tub; and a water stirring member comprising a support column and a water stirring rib extending axially along the support column, wherein the lower end of the support column is rotatably engaged with the bottom of the washing tub; the area of ​​the tub bottom extending outward from the lower end of the support column to the tub wall can be used as a washing surface, and the drain outlet of the washing tub is arranged on the washing surface of the tub bottom.

[0013] Another object of the present invention is to provide a washing tub assembly to solve the problem that when draining water from an existing washing tub assembly, clothes in the tub easily enter the drain port, thereby preventing the drain valve from closing the drain port.

[0014] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0015] A washing tub assembly comprises: a washing tub; and a water stirring member comprising a support column and a water stirring rib extending axially along the support column, wherein the lower end of the support column is rotatably engaged with the bottom of the washing tub; the area of ​​the tub bottom extending outward from the lower end of the support column to the tub wall can be used as a washing surface, and the drain outlet of the washing tub is arranged on the washing surface of the tub bottom; the drain outlet comprises: a drainage surface, which is an area on the washing surface of the tub bottom; and a plurality of drainage holes, comprising a plurality of drainage holes arranged on the drainage surface and penetrating the tub bottom.

[0016] Furthermore, it also includes a drain valve, which is arranged below the bottom of the washing tub, opposite to the side of the drain port away from the washing surface, for opening or closing the drain port; preferably, the shape of the upper end surface of the drain valve is the same as the shape of the drain surface.

[0017] Furthermore, the upper end surface of the drain valve is provided with protrusions corresponding to the drainage holes one by one. When the drain outlet is closed, the protrusions are respectively inserted into the drainage holes; preferably, the protrusions are made of elastic material.

[0018] Furthermore, the drainage hole extends along the axial direction of the washing tub, and the drainage valve reciprocates along the axial direction of the washing tub to open or close the drainage port.

[0019] Furthermore, the upper end of the protrusion extends above the drainage surface or the washing surface.

[0020] Furthermore, the drain port is provided on the washing surface of the vertically projected outer periphery of the water agitating member.

[0021] Furthermore, the radius of the water-stirring member is largest at a certain distance from the bottom of the barrel. This certain distance allows clothes to be washed below the position where the radius of the water-stirring member is largest, and the distance between the drain outlet and the axis of the water-stirring member is greater than or equal to the distance between the outer edge of the water-stirring member at the position where the radius is largest and the axis of the water-stirring member.

[0022] Furthermore, the water-stirring member has a first guide surface below the point with the largest radius, which is used to guide the clothes below this point to move outward along the first guide surface during washing; and a second guide surface extending upward is formed on the side of the support column, which is used to guide the clothes to move along the second guide surface toward the first guide surface during washing.

[0023] Another object of the present invention is to provide a washing tub assembly that prevents clothes from being entangled while preventing the bottom disc-shaped stirring portion of the water stirring member from obstructing the discharge of washing water and preventing dirt from being trapped between the water stirring member and the bottom of the washing tub.

[0024] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0025] A washing tub assembly comprises: a washing tub; and a water-stirring member comprising a support column and a water-stirring rib extending axially along the support column, wherein the lower end of the support column is rotatably engaged with the bottom of the washing tub; the area of ​​the tub bottom extending outward from the lower end of the support column to the tub wall can be used as a washing surface, and the drain outlet of the washing tub is arranged on the washing surface of the tub bottom; the radius of the water-stirring member is maximum at a certain distance from the tub bottom, and this certain distance enables clothes to be washed below the position where the radius of the water-stirring member is maximum; the water-stirring member has a guide surface below the position where its radius is maximum for guiding the movement of clothes during washing, and the guide surface guides the clothes to move upward from the central area of ​​the tub bottom and then to the periphery.

[0026] The present invention also provides a washing device, comprising the washing tub assembly of the washing device.

[0027] The present invention also provides a control method for a washing device, the washing device including the above-mentioned washing tub assembly; the control method includes the following steps: during the drainage process of the washing tub, the water stirring component rotates to accelerate drainage.

[0028] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art.

[0029] 1. The present invention eliminates the disc-shaped stirring portion at the bottom, i.e., the impeller, by providing a water-stirring member that rotates with the bottom of the washing tub through a support column. The area of ​​the tub bottom extending outward from the lower end of the support column to the tub wall is set as the washing surface, so that clothes can come into contact and friction with the area of ​​the tub bottom extending outward from the lower end of the support column to the tub wall, thereby avoiding dirt accumulation. At the same time, the water-stirring member can be prevented from obstructing the flow of washing water to the drain outlet on the washing surface, thereby improving the drainage speed.

[0030] 2. The present invention can prevent clothes on the washing surface from entering the drain port by providing a drainage surface and drainage holes provided on the drainage surface, thereby ensuring a smooth drainage process. At the same time, it can prevent clothes from entering the drain port and obstructing the closing of the drain valve, thereby ensuring the sealing of the drain valve to the drain port.

[0031] 3. The present invention provides protrusions corresponding to the drainage holes on the upper end surface of the drain valve. When the drain valve moves upward to close the drain outlet, the protrusions are inserted into the drainage holes to clear the drainage holes and prevent them from being blocked by dirt.

[0032] 4. A first guiding surface is formed at the largest radius of the water-stirring member. While preventing lint or other dirt from adhering to the outer surface of the water-stirring member, the clothes can move outward along the first guiding surface, thereby enhancing the effect of the water-stirring member rotating to drive the clothes to move outward and flip during the washing process, thereby improving the washing effect and preventing the clothes from gathering in the center and getting entangled.

[0033] 5. The present invention arranges the washing tub to rotate the water stirring member during the drainage process. On the one hand, it can make the washing water flow toward the periphery and smoothly enter the drain outlet. On the other hand, during the rotation of the water stirring member, the clothes in the washing tub move upward and toward the periphery along the second guide surface and the first guide surface, which can prevent the clothes from clogging the drain outlet and improve the drainage speed.

[0034] At the same time, the present invention has a simple structure, significant effects, and is suitable for popularization and use.

[0035] 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

[0036] 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:

[0037] FIG1 is a cross-sectional view of a washing tub assembly according to a first embodiment of the present invention;

[0038] FIG2 is an enlarged view of point C in FIG1 according to an embodiment of the present invention;

[0039] FIG3 is a cross-sectional view of a water seal structure in Example 1 of the present invention;

[0040] FIG4 is an assembly diagram of another water seal structure in Example 1 of the present invention;

[0041] FIG5 is a cross-sectional view of a washing tub assembly according to a second embodiment of the present invention;

[0042] FIG6 is an enlarged view of point A in FIG5 according to an embodiment of the present invention;

[0043] FIG7 is a schematic structural diagram of an unlocking component in a second embodiment of the present invention;

[0044] 8 is a schematic structural diagram of the cooperation between the driven portion and the guide sleeve in the second embodiment of the present invention;

[0045] 9 is a schematic diagram of the connection structure between the driven portion and the limiting member in the second embodiment of the present invention;

[0046] 10 is a schematic structural diagram of the driving unit in the second embodiment of the present invention;

[0047] 11 is a cross-sectional view of the washing tub assembly in Example 3 of the present invention;

[0048] FIG12 is an enlarged view of point B in FIG11 according to an embodiment of the present invention;

[0049] 13 is a schematic diagram of a first water seal structure provided separately in Example 3 of the present invention;

[0050] 14 is a schematic diagram of a first and a second water seal structure provided simultaneously in Example 3 of the present invention;

[0051] 15 is a cross-sectional view of the washing tub assembly of the fourth embodiment of the present invention;

[0052] 16 is a schematic structural diagram of a water stirring member in a fourth embodiment of the present invention;

[0053] 17 is a schematic diagram of the internal structure of the washing tub assembly in Example 5 of the present invention;

[0054] FIG18 is an enlarged view of point D in FIG17 according to an embodiment of the present invention;

[0055] FIG19 is an enlarged view of point E in FIG17 according to an embodiment of the present invention;

[0056] FIG20 is a schematic structural diagram of the water stirring component in the sixth embodiment of the present invention.

[0057] Description of the main components in the figure: 100, washing tub; 100-1, mounting slot; 100-2, extension wall; 100-31, washing surface; 100-32, drain outlet; 100-33, drain surface; 100-34, drainage hole; 200, water stirring component; 210, support column; 210-1, assembly part; 210-2, installation cavity; 210-3, assembly hole; 210-4, sealing groove; 210-5, sealing cover; 210-6, spline groove; 210-7, screw; 210-8, hollow column; 210-9, cavity; 211, first extension section; 212, second extension section; 213, first guide surface; 214, second guide surface; 215, connecting part; 220, water stirring rib; 230, water stirring plate; 231, stirring part; 240, water stirring part; 300, stirring shaft; 401, insert; 402, positioning cavity; 403, limiter; 4031, limiter cavity; 4032, clamping member; 4033, limiter hole; 404, driving part ;4041, abutment part;4042, first guide groove;4043, avoidance groove;405, driven part;4051, hollow limit column;4052, extension plate;406, guide hole;407, guide sleeve;4071, second guide groove;500, water seal structure;501, first water seal structure;502, second water seal structure;500-1, first extension part;500-2, second extension part;500-3, skeleton;500-4, sealing lip;500-5, spring ring;500-6, first sealing lip;500-7, second sealing lip;500-8, first rubber segment;500-9, second rubber segment;500-10, third sealing lip;600, drain valve;601, protrusion;6011, first protruding section;6012, second protruding section.

[0058] 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

[0059] 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.

[0060] 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.

[0061] 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.

[0062] Example 1

[0063] As shown in Figures 1 to 4, embodiments of the present invention describe a washing tub assembly. The washing tub assembly includes a washing tub 100 and a water agitation member 200 mounted on the washing tub 100. During operation, the agitation member 200 rotates, causing the wash water within the washing tub 100 to rotate, thereby washing the clothing within the washing tub 100.

[0064] In this embodiment, the washing tub 100 is a tub without holes.

[0065] 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.

[0066] In this embodiment, a water seal structure 500 is provided between the water stirring member 200 and the bottom of the washing tub 100. The water seal structure 500 is used to prevent washing water from entering the gap between the water stirring member 200 and the bottom of the washing tub 100, thereby preventing impurities such as dirt and lint that fall from the clothes from entering and accumulating in the gap between the water stirring member 200 and the bottom of the tub, thereby improving the cleanliness of the space in the washing tub 100 that is in contact with the washing water, thereby improving the cleaning effect on the clothes.

[0067] In this embodiment, the water-stirring member 200 extends axially along the washing tub 100, and the lower end of the water-stirring member 200 is plugged and rotatably engaged with the inner surface of the bottom of the washing tub 100. A water seal structure 500 is provided between the lower end circumference of the water-stirring member 200 and the center of the bottom of the washing tub where the clothes can reach.

[0068] In this embodiment, a water-stirring member 200 is provided to extend along the axial direction of the washing tub 100, and a water seal structure 500 is provided between the bottom of the tub where the clothes can reach, closest to its center, and the circumferential surface of the lower end of the water-stirring member 200. This allows the bottom of the washing tub 100 outside the water seal structure 500 to come into contact with the clothes, and the friction between the clothes and the inner surface of the bottom of the tub is used to prevent lint or other dirt from adhering to the inner surface of the bottom of the tub. At the same time, the water seal structure 500 can prevent the washing water from flushing the dirt to a position where the clothes cannot reach, effectively avoiding the problem of dirt easily accumulating between the water-stirring member 200 and the bottom of the tub and being difficult to clean, thereby improving the user experience.

[0069] In this embodiment, the water-stirring member 200 extends upward from the bottom of the washing tub 100, and includes a support column 210 and a water-stirring rib 220 arranged on the support column 210. The support column 210 extends along the axial direction of the washing tub 100, and the water-stirring rib 220 is arranged on the circumferential side of the support column 210 and extends along the length 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.

[0070] An installation groove 100-1 is provided at the bottom of the barrel closest to the center where the clothes can reach. The lower end of the support column 210 is inserted into the installation groove 100-1, and the water seal structure 500 is provided between the groove wall of the installation groove 100-1 and the lower end circumference of the support column 210.

[0071] Specifically, in this embodiment, the stirring shaft 300 of the washing device coaxially extends into the washing tub 100 , the lower end of the support column 210 of the water stirring member 200 is connected to the upper end of the stirring shaft 300 , and the stirring shaft 300 is used to drive the water stirring member 200 to rotate.

[0072] The mounting groove 100-1 is arranged on the inner surface of the bottom of the washing bucket 100 and is coaxial with the washing bucket 100. The mounting groove 100-1 corresponds to the lower end of the support column 210. The lower end of the support column 210 is at least partially inserted into the mounting groove 100-1 and forms a rotating pair with the groove wall of the mounting groove 100-1. The water seal structure 500 is arranged between the groove wall of the mounting groove 100-1 and the circumferential surface of the lower end of the support column 210.

[0073] In this embodiment, the support column 210 extends along the axial direction of the washing tub 100, and the circumferential side of the support column 210 is arranged opposite to the barrel wall of the washing tub 100. The clothes in the washing tub 100 are arranged around the support column 210. During the rotation of the water-stirring member 200, the clothes can contact the circumferential side of the support column 210 and the barrel bottom of the washing tub 100 outside the support column 210. The friction between the clothes and the support column 210 and between the clothes and the part of the barrel bottom placed outside the support column 210 is used to prevent lint or other dirt from adhering to the circumferential side of the support column 210 and the barrel bottom outside the support column 210, effectively avoiding the problem that dirt and grime are easily hidden between the water-stirring member 200 and the barrel bottom and difficult to clean, thereby improving the user experience.

[0074] The water seal structure 500 is annular and is arranged between the groove wall of the installation groove 100-1 and the lower end circumference of the support column 210; the outer periphery of the water seal structure 500 is connected to the groove wall of the installation groove 100-1, and the inner periphery of the water seal structure 500 is elastically abutted against the lower end circumference of the support column 210.

[0075] In this embodiment, a connecting portion 215 is provided at the lower end of the support column 210, and the support column 210 is rotated to cooperate with the groove wall of the installation groove 100-1 through the connecting portion 215, and the water seal structure 500 is provided between the connecting portion 215 of the support column 210 and the inner wall of the installation groove 100-1.

[0076] A mounting groove is coaxially disposed at the opening of mounting groove 100-1. The mounting groove has a larger diameter than mounting groove 100-1. A water seal structure 500 is disposed within the mounting groove, with its lower end surface abutting against the bottom of the mounting groove and its upper end surface substantially flush with the inner surface of the barrel bottom. Preferably, the outer diameter of water seal structure 500 is greater than or equal to the inner diameter of the mounting groove, and the inner edge of water seal structure 500 elastically abuts against the lower circumferential surface of support column 210.

[0077] In this embodiment, the "upper end surface of the water seal structure 500 is basically flush with the inner surface of the barrel bottom" can specifically mean that the upper end surface of the water seal structure 500 is flush with the inner surface of the barrel bottom, or that the upper end surface of the water seal structure 500 protrudes from the inner surface of the barrel bottom, or that the upper end surface of the water seal structure 500 is slightly lower than the inner surface of the barrel bottom.

[0078] As shown in Figures 2 to 4, in this embodiment, the water seal structure 500 includes a rubber body and a spring ring 500-5. The rubber body is disposed in the mounting groove and includes a rubber body body adapted to the mounting groove and a sealing lip 500-4 disposed between the inner periphery of the rubber body body and the lower end circumference of the support column 210 for elastic contact. The spring ring 500-5 is sleeved on the rubber body. By sleeved on the spring ring 500-5 on the rubber body, the sealing effect of the water seal structure 500 can be enhanced.

[0079] Preferably, in this embodiment, the spring ring 500 - 5 is hidden in the embedding groove, which can prevent the spring ring 500 - 5 from contacting with washing water, thereby preventing the spring ring 500 - 5 from rusting and improving the stability of the effect of the water seal structure 500 .

[0080] As shown in Figures 2 and 3, in some possible embodiments, the rubber body includes a main body and a sealing lip 500-4 disposed on the inner periphery of the main body. The main body includes a first extension portion 500-1 and a second extension portion 500-2, which are integrally formed. The first extension portion 500-1 extends upward from the bottom of the mounting groove along the groove wall, and the second extension portion 500-2 extends from the upper end of the first extension portion 500-1 toward the axis of the water-stirring member 200. The sealing lip 500-4 extends from the inner periphery of the second extension portion 500-2 toward the support column 210. The water seal structure 500 abuts the groove wall of the mounting groove through the first extension portion 500-1 and abuts the lower end circumference of the support column 210 through the sealing lip 500-4.

[0081] In this embodiment, the first extension portion 500-1 extends axially along the water-stirring member 200. The outer diameter of the first extension portion 500-1 is greater than or equal to the wall of the mounting groove, and the inner diameter of the first extension portion 500-1 is greater than the inner diameter of the mounting groove 100-1. The second extension portion 500-2 extends in a direction substantially perpendicular to the direction of extension of the first extension portion 500-1. Specifically, the second extension portion 500-2 may extend horizontally along the radial direction of the water-stirring member 200, or may extend downwardly and tilted toward the axis of the water-stirring member 200, or may extend upwardly and tilted toward the axis of the water-stirring member 200.

[0082] Preferably, the second extending portion 500 - 2 extends along the radial direction of the water-stirring member 200 .

[0083] Preferably, in this embodiment, the thickness of the first extension portion 500-1 is substantially the same as the thickness of the second extension portion 500-2. The thickness of the first extension portion 500-1 is the difference between the outer radius and the inner radius of the first extension portion 500-1, and the thickness of the second extension portion 500-2 is the distance between the lower end surface and the upper end of the second extension portion 500-2.

[0084] In this embodiment, the sealing lip 500-4 is arranged on the inner periphery of the second extension portion 500-2 and extends from the inner periphery of the second extension portion 500-2 in a direction close to the axis of the water-stirring member 200. The end of the sealing lip 500-4 is elastically abutted against the circumferential surface of the lower end of the support column 210, and the sealing lip 500-4 has multiple circles arranged along the axial direction of the water-stirring member 200.

[0085] As shown in Figure 3, in this embodiment, the sealing lip 500-4 located at the upper end of the inner circumference of the second extension portion 500-2 extends upward at an angle close to the axis of the water-stirring member 200, the sealing lip 500-4 located in the middle of the inner circumference of the second extension portion 500-2 extends horizontally at an angle close to the axis of the water-stirring member 200, and the sealing lip 500-4 located at the lower end of the inner circumference of the second extension portion 500-2 extends downward at an angle close to the axis of the water-stirring member 200.

[0086] In this embodiment, the "sealing lip 500-4 located at the upper end of the inner circumference of the second extension portion 500-2", the "sealing lip 500-4 located in the middle of the inner circumference of the second extension portion 500-2", and the "sealing lip 500-4 located at the lower end of the inner circumference of the second extension portion 500-2" are respectively provided in at least one circle.

[0087] In this embodiment, the sealing lip 500-4 on the inner periphery of the second extension portion 500-2 can be provided in two circles, with the "sealing lip 500-4 located at the upper end of the inner periphery of the second extension portion 500-2", the "sealing lip 500-4 located in the middle part of the inner periphery of the second extension portion 500-2", and the "sealing lip 500-4 located at the lower end of the inner periphery of the second extension portion 500-2" being provided in one circle respectively.

[0088] Preferably, in this embodiment, the spring ring 500 - 5 is sleeved on the lowermost sealing lip 500 - 4 .

[0089] Specifically, the inner periphery of the second extension portion 500-2 and the lowest sealing lip 500-4 extend downwardly in a direction close to the axis of the water-stirring member 200, and the end of the sealing lip 500-4 bends and extends downward in a direction away from the axis of the water-stirring member 200, and the spring coil 500-5 is sleeved on the end of the sealing lip 500-4.

[0090] Preferably, in this embodiment, the curvature of the end portion of the sealing lip 500-4, which is located at the inner periphery of the second extension portion 500-2 and is located at the bottom, and which curves downward and away from the axis of the water-stirring member 200, is the same as the curvature of the cross-section of the spring coil 500-5. The end portion of the sealing lip 500-4, which is located at the inner periphery of the second extension portion 500-2 and is located at the bottom, covers the spring coil 500-5. Specifically, the end portion of the sealing lip 500-4, which is located at the inner periphery of the second extension portion 500-2 and is located at the bottom, covers at least the side of the spring coil 500-5 that is closest to the axis of the water-stirring member 200.

[0091] In this embodiment, the inner diameter of the spring ring 500-5 is smaller than or equal to the diameter of the lower end of the support column 210, thereby reinforcing the sealing lip 500-4 on the support column 210 and preventing the spring ring 500-5 from contacting the washing water.

[0092] Preferably, in this embodiment, the water seal structure 500 further includes a skeleton 500-3, which is located within the rubber body and extends in a direction substantially identical to that of the rubber body. The term "substantially identical" may mean that the skeleton 500-3 extends in the same direction as the rubber body, or that there is a slight deviation between the directions.

[0093] In this embodiment, the skeleton 500-3 and the rubber body are arranged in a coordinated manner. By embedding the skeleton 500-3 inside the rubber body, the shape and position of the first extension part 500-1 and the second extension part 500-2 of the rubber body can be shaped and supported, making the rubber body stronger.

[0094] Specifically, the skeleton 500 - 3 is made of a hard material, is injection-molded inside the rubber body, and is disposed in the middle of the first extension portion 500 - 1 and the second extension portion 500 - 2 .

[0095] Preferably, the skeleton 500-3 is disposed inside the rubber body, and both ends of the skeleton 500-3 extend from the corners of the first extension portion 500-1 and the second extension portion 500-2 toward the inside of the first extension portion 500-1 and the second extension portion 500-2 respectively.

[0096] As shown in FIG. 4 , in some other possible embodiments, the rubber body includes a rubber body main body and a sealing lip 500 - 4 provided on the inner periphery of the rubber body main body.

[0097] In this embodiment, the shape of the rubber body is substantially the same as that of the embedding groove. The rubber body includes a first rubber segment 500-8 and a second rubber segment 500-9, the outer diameters of which gradually decrease from top to bottom. The first rubber segment 500-8 and the second rubber segment 500-9 are integrally formed.

[0098] The outer periphery of the first rubber segment 500-8 elastically abuts against the wall of the mounting groove, and / or the outer periphery of the first rubber segment 500-8 is bonded to the wall of the mounting groove, and the spring ring 500-5 is sleeved around the outer periphery of the second rubber segment 500-9. Thus, contact between the spring ring 500-5 and washing water can be prevented.

[0099] Preferably, in this embodiment, the lower end of the rubber body is in contact with the bottom of the mounting groove, and the upper end of the rubber body is basically flush with the inner surface of the barrel bottom. Preferably, the upper end surface of the rubber body is flush with the inner surface of the barrel bottom of the washing barrel 100.

[0100] Preferably, in this embodiment, an annular groove is provided on the outer periphery of the second rubber segment 500 - 9 , and the spring ring 500 - 5 is provided in the annular groove, thereby preventing the spring ring 500 - 5 from separating from the second rubber segment 500 - 9 .

[0101] And / or, the outer circumferential lower end of the second rubber segment 500-9 protrudes outward in a direction away from the water-stirring member 200 to limit the axial position of the spring ring 500-5 and prevent the spring ring 500-5 from separating from the second rubber segment 500-9.

[0102] In this embodiment, the sealing lip 500-4 includes a first sealing lip 500-6 and a second sealing lip 500-7. The first sealing lip 500-6 is arranged on the inner periphery of the first rubber segment 500-8, and the second sealing lip 500-7 is arranged on the inner periphery of the second rubber segment 500-9. The water seal structure 500 is elastically abutted against the outer periphery of the lower end of the support column 210 through the first sealing lip 500-6 and the second sealing lip 500-7.

[0103] Specifically, the first sealing lip 500-6 is arranged on the inner periphery of the first rubber segment 500-8, and extends upwardly and obliquely from the inner periphery of the first rubber segment 500-8 in a direction close to the axis of the water-stirring member 200; the first sealing lip 500-6 is provided with at least two circles, which are arranged at intervals along the axial direction of the first rubber segment 500-8.

[0104] Preferably, in this embodiment, the inner diameter of the first rubber segment 500-8 is greater than the inner diameter of the second rubber segment 500-9. A step is formed between the inner walls of the first rubber segment 500-8 and the second rubber segment 500-9. The first sealing lip 500-6 located at the bottom is arranged at the intersection of the inner circumferences of the first rubber segment 500-8 and the second rubber segment 500-9. The top of the first sealing lip 500-6 located at the top is flush with the upper end surface of the rubber body.

[0105] Specifically, in this embodiment, the first sealing lip 500-6 is provided with two circles, which are arranged along the axial direction of the first rubber segment 500-8. The top of the first sealing lip 500-6 located at the top is flush with the upper end surface of the rubber body, and the lower end surface of the first sealing lip 500-6 extends upward from the inner circumference of the first rubber segment 500-8 in a direction close to the axis of the water-stirring member 200. The thickness of the first sealing lip 500-6 located at the top gradually increases in a direction away from the axis of the water-stirring member 200.

[0106] The first sealing lip 500-6 located below extends upwardly and obliquely from the junction of the inner circumference of the first rubber segment 500-8 and the second rubber segment 500-9 in a direction close to the axis of the water-stirring member 200. The lower end of the root of the first sealing lip 500-6 located below is connected to the upper end of the inner circumference of the second rubber segment 500-9, and the upper end of the root of the first sealing lip 500-6 located below is connected to a position on the inner circumference of the first rubber segment 500-8 near its lower end. That is, the first sealing lip 500-6 located below extends upwardly and in a direction close to the axis of the water-stirring member 200 from the corner of the inner wall of the first rubber segment 500-8 and the inner wall of the second rubber segment 500-9.

[0107] Preferably, this embodiment further includes a third sealing lip 500-10, which is disposed between the two first sealing lips 500-6. Specifically, the root of the upper first sealing lip 500-6 is provided with a downwardly extending third sealing lip 500-10, with the end of the third sealing lip 500-10 abutting against the middle of the lower first sealing lip 500-6.

[0108] In this embodiment, the third sealing lip 500-10 extends vertically downward as a whole. The side of the third sealing lip 500-10 close to the axis of the water-stirring member 200 extends downward from the middle of the first sealing lip 500-6 located above in a direction away from the circumference of the water-stirring member 200, and the end of the third sealing lip 500-10 close to the axis of the water-stirring member 200 extends vertically downward. The side of the third sealing lip 500-10 away from the axis of the water-stirring member 200 extends downward from the root of the first sealing lip 500-6 located above in a direction close to the axis of the water-stirring member 200 and is inclined downward.

[0109] The end of the third sealing lip 500-10 corresponds to the middle of the first sealing lip 500-6 located below. Specifically, the end of the third sealing lip 500-10 corresponds to the position above the first sealing lip 500-6 located below and close to the root of the first sealing lip 500-6. The third sealing lip 500-10 and the first sealing lip 500-6 located below can be in contact or have a certain distance between them.

[0110] In this embodiment, the provision of the first sealing lip 500-6 can enhance the sealing effect of the first sealing lip 500-6. Specifically, the third sealing lip 500-10 can support the first sealing lip 500-6 located below, helping the first sealing lip 500-6 located below to rebound toward the axis of the water-stirring member 200, thereby improving the sealing effect.

[0111] In this embodiment, the axial cross-section of the first sealing lip 500 - 6 located at the bottom is a long rectangular strip.

[0112] In this embodiment, the second sealing lip 500-7 is provided on the inner periphery of the second rubber segment 500-9. The second sealing lip 500-7 is sawtooth-shaped. The axial cross section of the second sealing lip 500-7 is a triangle convex toward the axis of the water stirring member 200.

[0113] Preferably, the second sealing lip 500 - 7 is provided with at least two consecutive circumferences along the axial direction of the second rubber segment 500 - 9 .

[0114] Preferably, in this embodiment, the lower end surface of the second rubber segment 500-9 is set as an inclined surface inclined downward in the direction close to the axis of the water-stirring member 200, and the lower end of the second rubber segment 500-9 abuts against the bottom of the embedding groove through the inclined surface inclined downward in the direction close to the axis of the water-stirring member 200.

[0115] In this embodiment, the middle portion of the lower end surface of the second sealing lip 500 - 7 located at the bottom abuts against the edge of the groove bottom of the embedding groove close to the axis of the water-stirring member 200 .

[0116] Further preferably, the upper end surface of the first rubber segment 500 - 8 is set to be a horizontal plane extending along the radial direction of the water-stirring member 200 .

[0117] Example 2

[0118] As shown in Figures 5 to 10, an embodiment of the present invention describes a washing machine comprising a washing tub assembly, wherein the washing tub assembly comprises a washing tub 100 and a water stirring member 200 mounted on the washing tub 100. When the washing machine is in operation, the washing water in the washing tub 100 is rotated by the rotation of the water stirring member 200, thereby washing the clothes in the washing tub 100.

[0119] In this embodiment, the washing tub 100 may include an inner tub and an outer tub coaxially sleeved outside the inner tub. When washing clothes, there may be water or no water between the inner tub and the outer tub, and the water stirring member 200 is arranged on the inner side of the bottom of the inner tub.

[0120] Alternatively, the washing tub 100 may be a tub without holes, and the washing tub 100 is used for containing both clothes and washing water.

[0121] The washing machine also includes a drive device in driving connection with the washing tub 100 and the water-stirring member 200. Specifically, the output shaft of the drive device is respectively in driving connection with the stirring shaft 300 and the dehydrating shaft. The stirring shaft 300 is connected to and fixed relative to the water-stirring member 200, driving the water-stirring member 200 to rotate. The dehydrating shaft is fixed to the bottom of the washing tub 100, driving the washing tub 100 to rotate.

[0122] The water stirring member 200 of the existing washing equipment is usually a flat circular impeller. The water stirring part of the water stirring member 200 is generally a bottom disc-shaped stirring part, that is, the impeller disc. When washing, impurities such as lint on the clothes fall off and are easily accumulated in the gap between the bottom surface of the impeller and the washing tub 100.

[0123] In this embodiment, the water-stirring component 200 includes an assembly portion 210-1 and a water-stirring portion arranged on the top of the assembly portion 210-1. The assembly portion 210-1 is arranged above the inner surface of the barrel bottom, or the assembly portion 210-1 at least partially extends to the inner surface of the barrel bottom of the washing barrel 100, and the water-stirring portion extends upward from the top of the assembly portion 210-1; the part of the assembly portion 210-1 located between the water-stirring portion and the barrel bottom can contact the clothes in the washing barrel 100.

[0124] Specifically, in this embodiment, a mounting through hole cooperating with the stirring shaft 300 is provided on the bottom of the washing tub 100 , and the stirring shaft 300 extends from the mounting through hole to the inside of the washing tub 100 , and the stirring shaft 300 and the washing tub 100 are coaxially arranged.

[0125] The water stirring member 200 is assembled with the stirring shaft 300 via the assembly portion 210 - 1 .

[0126] In this embodiment, the assembly portion of the water-stirring component is sleeved on the upper end of the stirring shaft, and the assembly portion and the stirring shaft are key-connected. The assembly portion and the stirring shaft are circumferentially positioned by splines. Preferably, the assembly portion of the water-stirring component and the stirring shaft are axially positioned by a clamping structure or screws.

[0127] In this embodiment, the mounting portion 210-1 corresponds to the mounting hole in the middle of the bottom of the tub, and its diameter is greater than the diameter of the agitator shaft. Preferably, the inner surface of the bottom of the washing tub 100 is provided with a mounting groove 100-1. The lower end of the mounting portion 210-1 is provided with a connecting portion 215 that is rotatably inserted into the mounting groove 100-1. The radial dimension of the connecting portion 215 is greater than or equal to the radial dimension of the portion of the mounting portion 210-1 between the connecting portion 215 and the water stirring portion, and is less than the radial dimension of any horizontal cross-section of the water stirring portion.

[0128] In this embodiment, the mounting groove 100-1 is disposed around the agitator shaft 300, and the mounting through-hole is provided at the bottom of the mounting groove 100-1. The agitator shaft passes through the mounting groove 100-1 and extends into the interior of the washing tub 100. The assembly portion of the water-stirring member is sleeved onto the agitator shaft 300. The diameter of the connecting portion 215 at the lower end of the assembly portion 210-1 matches the diameter of the mounting groove 100-1, and a revolute pair is formed between the outer edge of the connecting portion 215 and the wall of the mounting groove 100-1.

[0129] The connecting portion 215 is cylindrical, and the assembly portion 210-1 between the connecting portion 215 and the water stirring portion is columnar. It can be a columnar shape with a diameter gradually increasing from top to bottom, a columnar shape with a diameter gradually decreasing from top to bottom, a cylindrical shape, or a prismatic shape. It is only necessary to ensure that the clothes in the washing tub can contact the part of the assembly portion placed between the connecting portion and the water stirring component.

[0130] In this embodiment, even though the gap between the agitating member 200 and the bottom of the drum is extremely small, there's still a certain amount of potential for dirt to accumulate. Because the gap is relatively narrow and inconvenient for users to access, they typically need to remove the impeller to clean the dirt within. Existing washing machines typically attach the agitating member 200 to the agitator shaft 300 via screws 210-7, making it difficult for users to remove and assemble the agitating member 200.

[0131] In this embodiment, an installation structure of a water-stirring component 200 is also introduced. The installation structure is suitable for a water-stirring component 200 with a large axial length. The glue component with a large axial length can specifically be a stirring column, a stirring rod, a stirring rod, etc.

[0132] As shown in FIG. 5 , in this embodiment, the mounting structure is provided between the assembly portion 210 - 1 and the stirring shaft 300 of the washing device, for achieving axial positioning between the water stirring member 200 and the stirring shaft 300 .

[0133] As shown in Figure 6, the installation structure includes an insert 401 arranged at the end of the stirring shaft 300 and a locking assembly arranged in the assembly part 210-1 of the water-stirring member 200. When the water-stirring member 200 is installed, the insert 401 is at least partially inserted into the assembly part 210-1, and the locking assembly in the assembly part 210-1 locks the insert 401 along the axial direction of the water-stirring member 200, thereby realizing axial positioning between the water-stirring member 200 and the stirring shaft 300.

[0134] Specifically, the locking assembly includes a positioning cavity 402 and a stopper 403, which are coaxially arranged. The assembly portion 210-1 is provided with an installation cavity 210-2, and the positioning cavity 402 and the stopper 403 are arranged in the installation cavity 210-2.

[0135] The positioning cavity 402, the limiting member 403, and the insert 401 are coaxially arranged. When the water-stirring member 200 is installed, the insert 401 is inserted into the installation cavity 210-2 from the bottom of the assembly portion 210-1 and into the limiting member 403. The positioning cavity 402 and the limiting member 403 are close to each other, which can lock the insert 401. The positioning cavity 402 and the limiting member 403 are far away from each other, which can unlock the insert 401.

[0136] In this embodiment, the insert 401 is cylindrical and can be coaxially arranged on the upper end of the stirring shaft 300 by any feasible means such as welding, bonding, molding, and threaded connection. A limiting groove is provided on the insert 401, and the limiting groove is arranged around the peripheral wall of the insert 401; the limiting member 403 includes a limiting cavity 4031 and a clamping member 4032, and a limiting hole 4033 is provided on the side wall of the limiting cavity 4031. The clamping member 4032 can enter and exit the limiting groove in the radial direction of the insert 401, and the limiting hole 4033 is used to limit the entry and exit path of the clamping member 4032 in the radial direction of the insert 401; the limiting member 403 is at least partially inserted into the positioning cavity 402, and the diameter of the positioning cavity 402 gradually increases in the direction of the limit member 403 coming out, and the inner wall of the positioning cavity 402 confines the clamping member 4032 in the limiting groove.

[0137] In this embodiment, the positioning cavity 402 and the limiting member 403 tend to approach each other. When the stirring assembly is installed, the insert 401 is inserted into the installation cavity 210-2 from the bottom of the assembly portion 210-1. During the insertion of the insert 401 into the locking assembly, the insert 401 first squeezes the limiting member 403, separating the positioning cavity 402 from the limiting member 403. Under the action of the insert 401, the clamping member 4032 moves along the limiting hole 4033 in a direction away from the axis of the water stirring member 200. The clamping member 4032 will not completely disengage from the limiting hole 4033 due to the stopping action of the positioning cavity 402. At this time, the insert 401 can enter the limiting cavity 4031. When the clamping member 4032 corresponds to the limiting groove, the clamping member 4032 enters the limiting groove, and the limiting member 403 and the positioning cavity 402 move closer to each other. Due to the effect of the gradually decreasing diameter of the positioning cavity 402, the clamping member 4032 enters the limiting member 403 from the limiting hole 4033 and is stuck in the limiting groove of the insert 401, thereby clamping the insert 401, thereby positioning the water stirring member 200 from the axial direction of the stirring shaft 300.

[0138] Preferably, in this embodiment, the inner wall of the positioning cavity 402 is configured as a frustum that is inclined in a direction away from the axis of the water-stirring member 200 along the direction in which the limiting member 403 escapes.

[0139] Preferably, in this embodiment, the limiting groove extends along the circumference of the insert 401, and the limiting groove is configured to gradually increase in depth along the direction in which the limiting member 403 is inserted into the positioning cavity 402. After the water-stirring member 200 is installed, the clamping member 4032 abuts against the middle portion of the bottom of the limiting groove to ensure that the clamping member 4032 locks the insert 401 and prevents axial shaking of the water-stirring member 200 during operation.

[0140] Preferably, as shown in Figure 7, in this embodiment, the limiting cavity 4031 is configured as a column with an isosceles trapezoidal axial cross-section, and the side wall of the limiting cavity 4031 is configured as a frustum with a diameter gradually increasing in the direction of escaping the positioning cavity 402. The inclination angle of the side wall of the limiting cavity 4031 in the direction of escaping the positioning cavity 402 toward the direction away from the axis of the water-stirring component 200 is less than or equal to the inclination angle of the inner wall of the positioning cavity 402 in the direction of escaping the limiting member 403 toward the direction away from the axis of the water-stirring component 200.

[0141] Preferably, as shown in Figures 7 to 9, the limiting holes 4033 are provided with a plurality of them evenly arranged along the circumference of the limiting cavity 4031, and each of the limiting holes 4033 is provided with a clamping member 4032, and the clamping member 4032 is set to a spherical shape that matches the shape of the limiting hole 4033.

[0142] Preferably, three limiting holes 4033 are provided.

[0143] The bottom of the assembly portion 210-1 is provided with a through hole communicating with the installation cavity 210-2, and the through hole is adapted to fit the insert 401. Preferably, the diameter of the lower end of the through hole gradually increases from top to bottom, so as to improve the smoothness of the insertion of the insert 401.

[0144] The top of the insert 401 is preferably designed as a round head, and the clamping member 4032 is also preferably designed as a spherical ball, so that when the insert 401 is pushed into the limiting member 403, when the radial cross-section of the positioning cavity 402 becomes larger, the clamping member 4032 can more easily fall into the limiting groove of the insert 401.

[0145] In this embodiment, there is a tendency for the positioning cavity 402 and the limiting member 403 to approach each other to lock the insert 401, and an unlocking component is also provided between the outer periphery of the positioning cavity 402 or the limiting member 403 and the side wall of the assembly part 210-1 for driving the limiting cavity 4031 and the limiting member 403 to separate from each other to unlock the insert 401.

[0146] The unlocking assembly is arranged at the portion of the assembly portion 210 - 1 between the water stirring portion and the inner surface of the barrel bottom, which makes it easy for the user to operate the unlocking assembly.

[0147] Specifically, in this embodiment, one of the positioning cavity 402 and the limiting member 403 is fixed to the assembly portion 210 - 1 , and the other can slide along the axial direction of the water-stirring member 200 .

[0148] In some possible embodiments, the limit member 403 is coaxially fixed on the bottom inner wall of the installation cavity 210-2, the positioning cavity 402 is coaxially arranged above the limit member 403, the opening of the positioning cavity 402 faces downward, and the diameter of the positioning cavity 402 gradually increases from top to bottom, and the unlocking component is used to drive the positioning cavity 402 to move axially.

[0149] The insert 401 is inserted into the installation cavity 210-2 from the bottom of the assembly portion 210-1, and the upper end of the insert 401 abuts against the clamping member 4032 in the limit member 403. At this time, the side of the clamping member 4032 close to the axis of the water-stirring member 200 abuts against the upper end of the insert 401, and the side of the clamping member 4032 away from the water-stirring member 200 abuts against the inner wall of the positioning cavity 402. Since the positioning cavity 402 tends to move toward the limit member 403, the insert 401 cannot continue to be inserted.

[0150] The user operates the unlocking component to move the positioning cavity 402 upward. Since the inner wall of the positioning cavity 402 gradually increases from top to bottom, as the positioning cavity 402 moves upward, the diameter of the inner wall at the point where the positioning cavity 402 and the clamping member 4032 abut against each other increases. The clamping member 4032 moves in a direction away from the axis of the water-stirring member 200 under the squeezing of the insert 401. At this time, the insert 401 can continue to be inserted.

[0151] As the insert 401 is inserted, when the clamping piece 4032 enters the limiting groove, the positioning cavity 402 moves downward, and the end of the clamping piece 4032 close to the axis of the water-stirring member 200 abuts against the bottom of the limiting groove, and the end of the clamping piece 4032 away from the axis of the water-stirring member 200 abuts against the inner wall of the positioning cavity 402, thereby realizing axial positioning of the insert 401.

[0152] In this embodiment, the unlocking assembly includes a driving portion 404 and a driven portion 405 . The driving portion 404 is disposed on the side wall of the assembly portion 210 - 1 , and the driven portion 405 is disposed on the positioning cavity 402 and cooperates with the driving portion 404 in transmission.

[0153] Specifically, the driven portion 405 includes a hollow limiting post 4051 disposed on the positioning cavity 402 and an extension plate 4052 extending radially from the outer wall of the hollow limiting post 4051 away from the axis of the water-stirring member 200. The hollow limiting post 4051 extends upward from the top of the positioning cavity 402 and is integrally connected to the positioning cavity 402. The inner diameter of the hollow limiting post 4051 matches the diameter of the insert 401. The extension plate 4052 abuts against the driving portion 404 via an inclined surface that tilts from top to bottom toward the axis of the water-stirring member 200. When the driving portion 404 moves toward the axis of the water-stirring member 200, the driving portion 404 presses the end of the extension plate 4052, pushing the positioning cavity 402 upward.

[0154] As shown in Figures 6 to 10, in other possible embodiments, the positioning cavity 402 is fixedly arranged on the bottom inner wall of the installation cavity 210-2, the opening of the positioning cavity 402 faces upward, and the diameter of the positioning cavity 402 gradually increases from bottom to top. The limiting member 403 is arranged above the positioning cavity 402, and the lower end of the limiting member 403 is at least partially inserted in the positioning cavity 402, and the unlocking component is used to drive the limiting member 403 to move upward.

[0155] The insert 401 is inserted from the bottom of the assembly portion 210-1 into the mounting cavity 210-2. The upper end of the insert 401 abuts against the clamping member 4032 in the stopper 403, pushing the stopper 403 upward. Since the diameter of the positioning cavity 402 gradually increases from bottom to top, the insert 401 pushes the stopper 403 upward while also pushing the insert 401 away from the axis of the water-stirring member 200, allowing the insert 401 to smoothly enter the stopper 403. As the insert 401 is inserted, when the clamping member 4032 enters the limiting groove, the limiter 403 moves downward. The end of the clamping member 4032 closer to the axis of the water-stirring member 200 abuts against the bottom of the limiting groove, while the end of the clamping member 4032 farther from the axis of the water-stirring member 200 abuts against the inner wall of the positioning cavity 402, thereby achieving axial positioning of the insert 401.

[0156] In this embodiment, the driven portion 405 of the unlocking assembly is disposed on the stopper 403, specifically, at the end of the stopper 403 away from the positioning cavity 402. A hollow stopper post 4051 of the driven portion 405 extends upward from the top of the stopper 403. An extension plate 4052 of the driven portion 405 extends radially away from the axis of the agitating member 200 from the outer wall of the hollow stopper post 4051. The extension plate 4052 of the driven portion 405 abuts the inner edge of the driving portion 404 via an inclined surface that slopes upward away from the axis of the agitating member 200. When the driving portion 404 moves toward the axis of the agitating member 200, it compresses the end of the extension plate 4052, pushing the stopper 403 upward.

[0157] As shown in Figures 7 and 10, in this embodiment, the driving part 404 is columnar, and the end of the driving part 404 close to the axis of the water-stirring member 200 is provided with an abutting part 4041 that protrudes toward the direction close to the axis of the water-stirring member 200 and abuts against the end of the extension plate 4052 away from the axis of the water-stirring member 200.

[0158] Preferably, one end of the abutting portion 4041 close to the axis of the water-stirring member 200 is configured as an inclined surface that fits with the end of the extension plate 4052 .

[0159] Preferably, in this embodiment, a first guide groove 4042 is provided at one end of the abutting portion 4041 proximal to the axis of the water-stirring member 200. The end of the extension plate 4052 is inserted into the first guide groove 4042 and abuts against the bottom of the first guide groove 4042. The end of the extension plate 4052 is configured as an inclined surface that slopes upward from bottom to top away from the axis of the water-stirring member 200. The bottom of the first guide groove 4042 abuts against the end of the driven portion 405. In this embodiment, the provision of the first guide groove 4042 enhances the guiding effect on the movement of the driven portion 405, thereby achieving circumferential positioning of the driven portion 405.

[0160] Preferably, in this embodiment, an avoidance groove 4043 for avoiding the upper end of the extension plate 4052 is provided on the driving part 404 above the abutting part 4041, so that when the driving part 404 moves in the direction close to the axis of the water-stirring member 200, the driven part 405 moves upward under the push of the driving part 404, and the upper end of the extension plate 4052 away from the axis of the water-stirring member 200 is inserted into the avoidance groove 4043 to prevent mutual interference with the driving part 404, thereby ensuring the moving distance of the driving part 404 in the direction close to the axis of the water-stirring member 200 and improving the compactness of the matching structure between the driving part 404 and the driven part 405.

[0161] Preferably, as shown in FIG8 , a guide sleeve 407 is further provided in the installation cavity 210-2. The guide sleeve 407 extends downward from the top inner wall of the installation cavity 210-2 and is sleeved around the outer circumference of the hollow limiting column 4051. The guide sleeve 407 is provided with a second guide groove 4071 extending upward from the lower end of the guide sleeve 407 for accommodating the extension plate 4052. The provision of the guide sleeve 407 can further enhance the guiding effect on the movement of the driven portion 405.

[0162] In this embodiment, a first elastic member is disposed between the driven portion 405 and the top inner wall of the installation cavity 210-2, for driving the driven portion 405 downward. The first elastic member provides a tendency for the positioning cavity 402 and the limiting member 403 to approach each other. Specifically, the first elastic member is a compression spring, which is sleeved around the outer periphery of the guide sleeve 407. One end of the first elastic member abuts the top inner wall of the installation cavity 210-2, and the other end of the first elastic member abuts the extension plate 4052. The first elastic member is compressed to a certain extent, causing the limiting member 403 and the positioning cavity 402 to approach each other, thereby locking the inserted member 401 therein.

[0163] In this embodiment, a guide hole 406 is provided on the side wall of the assembly part 210-1, which connects the installation cavity 210-2 and the outside of the assembly part 210-1 and is used to accommodate the driving part 404. The guide hole 406 extends along the radial direction of the water-stirring member 200 and is adapted to the shape of the driving part 404. The driving part 404 is arranged in the guide hole 406 and slides along the guide hole 406 to drive the driven part 405 to move upward.

[0164] Preferably, in some possible embodiments, the guide hole 406 contracts inward at one end away from the installation cavity 210 - 2 to limit the driving part 404 , and the driving part 404 is installed in the guide hole 406 from one end of the guide hole 406 close to the installation cavity 210 - 2 .

[0165] In this embodiment, there are two driving parts 404, which are arranged opposite to each other, and the extension directions of the axes of the two driving parts 404 are at an angle of 180°. Two extension plates 4052 are provided on the hollow limiting column 4051, which respectively abut against the two driving parts 404. A second elastic member is provided between the two opposite driving parts 404 for driving the two driving parts 404 away from each other.

[0166] In other possible embodiments, a rubber connecting wall is provided between the inner wall of the guide hole 406 and the driving portion 404 to seal the gap therebetween and to drive the driving portion 404 to rebound. Specifically, the rubber connecting wall extends along the circumference of the driving portion 404, with one end of the rubber connecting wall connected to the driving portion 404 and the other end connected to the side wall of the mounting cavity 210-2.

[0167] In this embodiment, the outer wall of the installation cavity 210-2 is set as a curved surface extending around the axis of the water-stirring component 200, and the end of the guide hole 406 away from the water-stirring component 200 protrudes from the outer wall of the installation cavity 210-2, so that a protruding outward pressure profile is formed on the outer wall of the installation cavity 210-2, which is beneficial for the user to determine the position of the guide hole 406 and facilitates the user to disassemble the water-stirring component 200.

[0168] As shown in Figure 5, in this embodiment, the water stirring member 200 is an inverted cone and is rotatably arranged on the inner side of the bottom of the washing tub 100. The side of the conical water stirring member 200 in the height direction is a curved surface, and an inclination angle is formed between the side of the water stirring member 200 and the bottom of the washing tub 100. The barrel wall of the washing tub 100 is vertically arranged. As the height of the support column 210 increases, the distance between the side of the water stirring member 200 and the barrel wall of the washing tub 100 gradually decreases, and the distance between the side of the water stirring member 200 and the bottom of the washing tub 100 gradually increases.

[0169] The water stirring member 200 includes a support column 210 and a water stirring rib 220. The water stirring rib 220 is arranged on the circumference of the support column 210. The direction of the water stirring rib 220 is at an angle to the rotation direction of the water stirring member 200, and is used to stir the washing water on the side of the water stirring member 200 in the washing tub 100.

[0170] In this embodiment, the assembly portion 210-1 of the water-stirring member 200 is a portion of the support column 210 of the water-stirring member 200. That is, in this embodiment, the support column 210 of the water-stirring member 200 includes two parts. The first part of the support column 210 is the assembly portion 210-1, and the second part of the support column 210 extends upward from the top of the assembly portion 210-1. The second part of the support column 210 corresponds to the water-stirring portion of the water-stirring member, and the outer peripheral wall of the second part of the support column 210 is provided with a water-stirring rib 220.

[0171] In this embodiment, the assembly portion 210-1 of the water-stirring component 200 includes an outer cover and a mounting plate that are interlocked to form an installation cavity 210-2. The mounting plate is a horizontally extending circular plate. The middle part of the bottom surface of the outer cover is recessed upward to form a cavity. The mounting plate is interlocked with the bottom of the cavity to close the opening of the bottom of the cavity to form an installation cavity 210-2.

[0172] In this embodiment, the mounting plate constitutes the connecting portion 215 of the assembly portion 210 - 1 , and the side wall of the mounting cavity 210 - 2 constitutes the portion between the water stirring portion and the bottom of the tub, the outer peripheral wall of which contacts the clothes in the washing tub 100 .

[0173] In this embodiment, the water stirring part is formed on the outer cover, and the bottom of the mounting plate is provided with a spline shaft for key connection with the stirring shaft 300, and the water stirring component 200 is connected to the stirring shaft 300 through the circumferential limit between the spline shaft and the stirring shaft 300, or, the bottom of the mounting plate is formed with a spline groove 210-6 extending downward, and the spline groove 210-6 is at least partially sleeved on the end of the stirring shaft 300, and the inner peripheral wall of the spline groove 210-6 cooperates with the spline on the outer peripheral wall of the upper end of the stirring shaft 300 to realize the circumferential positioning between the water stirring component 200 and the stirring shaft 300.

[0174] In this embodiment, the diameter of the mounting plate is greater than or equal to the outer diameter of the mounting cavity 210-2. The bottom of the washing tub 100 is provided with a mounting groove 100-1. The lower end of the mounting plate is at least partially inserted into the mounting groove 100-1. A water seal structure 500 is provided between the notch of the mounting groove 100-1 and the mounting plate. Preferably, the diameter of the mounting plate is equal to the outer diameter of the mounting cavity 210-2.

[0175] Preferably, in this embodiment, the water stirring portion has a maximum radius along the radial direction of the washing tub 100 at a certain distance from the bottom surface of the washing tub 100, and a guide surface extending toward the periphery is formed there, for guiding the clothes below thereto to move toward the periphery along the guide surface during washing.

[0176] Example 3

[0177] As shown in Figures 11 to 14, an embodiment of the present invention introduces a washing machine, which includes a washing tub 100 and a water stirring member 200 mounted on the washing tub 100. When the washing machine is in operation, the washing water in the washing tub 100 rotates through the rotation of the water stirring member 200, thereby washing the clothes in the washing tub 100.

[0178] In this embodiment, the washing tub 100 is a tub without holes.

[0179] In this embodiment, when the water-stirring member 200 is installed, a gap is formed between the lower end 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 lower end 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. Bacteria are easily grown and contaminate the clothes with the wash water.

[0180] In this embodiment, a water seal structure 500 is provided between the water stirring member 200 and the bottom of the washing tub 100. The water seal structure 500 is used to prevent washing water from entering the gap between the water stirring member 200 and the bottom of the washing tub 100, thereby preventing impurities such as dirt and lint that fall from the clothes from entering and accumulating in the gap between the water stirring member 200 and the bottom of the tub, thereby improving the cleanliness of the space in the washing tub 100 that is in contact with the washing water, thereby improving the cleaning effect on the clothes.

[0181] The water seal structure 500 is provided at least at one end of the gap between the water stirring member 200 and the bottom of the tub communicating with the washing space inside the tub 100 .

[0182] In this embodiment, the water-stirring member 200 extends upward from the bottom of the washing tub 100 and includes a support column 210 and a water-stirring rib 220 provided on the support column 210. The support column 210 extends along the axial direction of the washing tub 100, and the water-stirring rib extends along the length 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. The water seal structure 500 is provided at one end of the gap between the lower end of the support column 210 and the bottom of the tub, which is connected to the washing space of the washing tub 100. In this embodiment, by providing a rotatable engagement between the support column and the bottom of the tub, the bottom disc-shaped stirring portion is eliminated, which can reduce the coverage area of ​​the gap between the water-stirring member and the bottom of the tub, thereby alleviating the retention of dirt. At the same time, the size of the water seal structure can be reduced, reducing the damping of the rotational action of the water-stirring member.

[0183] In this embodiment, the stirring shaft 300 of the washing device coaxially extends into the washing tub 100 , the lower end of the support column 210 of the water stirring member 200 is connected to the upper end of the stirring shaft 300 , and the stirring shaft 300 is used to drive the water stirring member 200 to rotate.

[0184] In some possible embodiments, the support column 210 is arranged above the bottom of the washing tub 100, and a gap is formed between the lower end surface of the support column 210 and the bottom of the washing tub 100, and the water seal structure 500 is at least arranged between the outer edge of the lower end surface of the support column 210 and the bottom of the tub.

[0185] Specifically, in this embodiment, the water seal structure 500 is annular, the lower end of the water seal structure 500 is fixedly connected to the bottom of the washing tub 100, the upper end of the water seal structure 500 is elastically abutted against the lower end face of the support column 210, and preferably, the outer edge of the water seal structure 500 is coplanar with the bottom wall of the support column 210.

[0186] The lower end of the water seal structure 500 can be clipped and / or bonded to the bottom of the bucket. The upper end of the water seal structure 500 elastically abuts against the lower end surface of the support column 210 via a serrated surface comprising a plurality of serrations continuously arranged along the radial direction of the water stirring member 200.

[0187] Preferably, in this embodiment, the surface of the support column 210 that contacts the water seal structure 500 is a metal surface. A metal insert is provided at the lower end of the support column 210. The support column 210 contacts the water seal structure 500 through the metal insert, which makes the lower end surface of the support column 210 smooth, thereby further improving the sealing effect between the support column 210 and the water seal structure 500 and reducing the damping force between the two.

[0188] In this embodiment, the water seal structure 500 is made of rubber material and may be provided with multiple circles arranged along the radial direction of the water stirring member 200 .

[0189] As shown in Figures 12 to 14, in other possible embodiments, a mounting groove 100-1 is provided on the inner side of the bottom of the washing bucket 100, and the mounting groove 100-1 corresponds to the lower end of the support column 210, and the water seal structure 500 is provided between the bottom of the mounting groove 100-1 and the lower end surface of the support column 210; and / or, the lower end of the support column 210 is at least partially inserted into the mounting groove 100-1, and the water seal structure 500 is provided between the groove wall of the mounting groove 100-1 and the lower end peripheral surface of the support column 210.

[0190] As shown in Figure 13, in this embodiment, the water seal structure 500 includes a first water seal structure 501, which is annular and is arranged between the bottom of the installation groove 100-1 and the lower end face of the support column 210; the lower end of the first water seal structure 501 is fixed on the bottom of the installation groove 100-1, and the upper end of the first water seal structure 501 is elastically abutted against the lower end face of the water stirring member 200; preferably, the outer periphery of the first water seal structure 501 is in contact with the groove wall of the installation groove 100-1.

[0191] Specifically, the upper end surface of the first water seal structure 501 is configured to be sawtooth-shaped, and the upper end surface of the first water seal structure 501 includes a plurality of sawteeth continuously arranged along the radial direction of the water stirring structure.

[0192] In this embodiment, the lower end of the support column can be inserted into the installation groove and rotatably engaged with the groove wall of the installation groove, and the lower end of the support column may not be inserted into the installation groove.

[0193] As shown in Figure 12, in this embodiment, the water seal structure 500 includes a second water seal structure 502, which is annular and is arranged between the groove wall of the installation groove 100-1 and the lower end circumference of the support column 210; the outer periphery of the second water seal structure 502 is connected to the groove wall of the installation groove 100-1, and the inner periphery of the second water seal structure 502 is elastically abutted against the lower end circumference of the support column 210.

[0194] Specifically, the lower end of the support column 210 is at least partially inserted into the mounting groove 100-1, and gaps are formed between the lower end circumference of the support column 210 and the groove wall of the mounting groove 100-1, and between the lower end surface of the support column 210 and the groove bottom of the mounting groove 100-1. The second water seal structure 502 is arranged between the groove mouth of the mounting groove 100-1 and the lower end circumference of the support column 210.

[0195] Specifically, in this embodiment, the lower end of the support column 210 is at least partially inserted into the mounting groove 100-1, and the second water seal structure 502 is disposed around the lower end of the support column 210. In this embodiment, a connecting portion 215 is disposed at the lower end of the support column 210. The support column 210 is rotatably engaged with the groove wall of the mounting groove 100-1 via the connecting portion 215, and the second water seal structure 502 is disposed between the connecting portion 215 of the support column 210 and the inner wall of the mounting groove 100-1.

[0196] In this embodiment, the second water seal structure 502 is annular and can be located only at the opening of the mounting groove 100-1 or throughout the entire mounting groove 100-1. The outer edge of the second water seal structure 502 is connected to the groove wall of the mounting groove 100-1, and the inner edge of the second water seal structure 502 elastically abuts against the circumferential surface of the lower end of the support column 210 via a serrated surface comprising a plurality of serrations arranged continuously along the axial direction of the water-stirring member 200.

[0197] In some possible embodiments, the second water seal structure 502 extends axially along the mounting groove 100-1, with its lower end surface abutting against the bottom of the mounting groove 100-1 and its upper end surface substantially flush with the inner side of the barrel bottom. In this embodiment, sealant is disposed between the outer edge of the second water seal structure 502 and the wall of the mounting groove 100-1, and / or between the lower end surface of the second water seal structure 502 and the bottom of the mounting groove 100-1.

[0198] Preferably, in some possible embodiments, the lower end of the second water seal structure 502 extends along the radial direction of the water stirring member 200 toward the axis of the water stirring member 200, and the inner periphery of the second water seal structure 502 at least partially extends to between the lower end surface of the support column 210 and the bottom of the mounting groove 100-1, so as to further enhance the sealing effect of the gap between the support column 210 and the bottom of the barrel.

[0199] As shown in Figure 12, in some other possible embodiments, an inserting groove is coaxially disposed at the opening of the mounting groove 100-1. The inserting groove has a larger diameter than the mounting groove 100-1. The second water seal structure 502 is disposed within the inserting groove, with its lower end surface abutting against the bottom of the inserting groove and its upper end surface substantially flush with the inner side of the barrel bottom. Preferably, the outer diameter of the second water seal structure 502 is greater than or equal to the inner diameter of the inserting groove, and the inner edge of the second water seal structure 502 elastically abuts against the lower circumferential surface of the support column 210.

[0200] In this embodiment, the inner side of the barrel bottom is specifically the inner surface of the barrel bottom of the washing barrel.

[0201] In this embodiment, the "upper end surface of the second water seal structure 502 is basically flush with the inner side of the barrel bottom" can specifically be that the upper end surface of the second water seal structure 502 is flush with the inner surface of the barrel bottom, or that the upper end surface of the second water seal structure 502 protrudes from the inner surface of the barrel bottom, or that the upper end surface of the second water seal structure 502 is slightly lower than the inner surface of the barrel bottom.

[0202] In this embodiment, the first water seal structure 501 and the second water seal structure 502 can be provided separately. As shown in FIG. 14 , the first water seal structure 501 and the second water seal structure 502 can also be provided at the same time.

[0203] In this embodiment, the inner surface of the bottom of the washing tub 100 extends horizontally, or an extension wall 100-2 is provided on the inner surface of the bottom of the washing tub 100, which is arranged around the support column 210 and protrudes and extends into the interior of the washing tub 100, and the inner periphery of the extension wall 100-2 is coplanar with the groove wall of the mounting groove 100-1.

[0204] Preferably, in this embodiment, for a washing tub equipped with a single first water seal structure 501, the inner periphery of the extension wall 100-2 is coplanar with the wall of the mounting groove 100-1. For a washing tub equipped with a second water seal structure 502, the extension wall 100-2 is disposed around the mounting groove and extends axially of the washing tub 100, with the inner periphery of the extension wall 100-2 being coplanar with the wall of the mounting groove.

[0205] Preferably, in this embodiment, the lower end of the second water seal structure 502 is in contact with the bottom of the embedding groove, the upper end of the second water seal structure 502 is basically flush with the upper end surface of the extension wall 100-2, the outer edge of the second water seal structure 502 is bonded to the groove wall of the embedding groove, and / or the lower end of the second water seal structure 502 is bonded to the bottom of the embedding groove.

[0206] In this embodiment, the lower end of the water stirring rib 220 extends to be flush with the inner surface of the bottom of the washing tub 100 , or the lower end of the water stirring rib 220 is spaced apart from the inner surface of the bottom of the washing tub 100 .

[0207] Specifically, for the inner surface of the extension wall 100 - 2 provided on the bottom of the barrel, the lower end of the water stirring rib extends to the lowest position flush with the upper end surface of the extension wall.

[0208] Preferably, in this embodiment, the lower end of the water-stirring rib 220 is spaced apart from the bottom of the barrel so that the clothes can enter the space between the lower end of the water-stirring rib 220 and the bottom of the barrel, and the clothes can contact the lower end circumference of the support column 210.

[0209] In this embodiment, the lower end of the water-stirring member 200 is sleeved on the upper end of the stirring shaft 300, and the lower end of the water-stirring member 200 is circumferentially limited by the upper end of the stirring shaft 300 through a spline structure, and the water-stirring member 200 is axially limited by the upper end of the stirring shaft 300 through a screw 210-7 or a clamping structure.

[0210] Specifically, a spline groove 210-6 is coaxially provided at the bottom of the water-stirring member 200, and the spline groove 210-6 is at least partially sleeved on the end of the stirring shaft 300 and is key-connected to the stirring shaft 300. The spline groove 210-6 is formed on the support column 210 of the water-stirring member 200, or the support column 210 of the water-stirring member 200 includes a support column body and a spline shaft arranged at the lower end of the support column body, and the spline groove 210-6 is arranged on the spline shaft.

[0211] In this embodiment, the top of the spline shaft is embedded in the bottom of the support column body of the water-stirring component. The spline shaft has a radial protrusion extending radially along the water-stirring component. The radial protrusion is fitted with the bottom of the support column body. The radial protrusion is inserted into the mounting groove. The radial protrusion constitutes the connecting part of the support column.

[0212] The agitating member 200 and the agitating shaft 300 are axially positioned via a snap-fit ​​structure. Specifically, an insert 401 is provided at the end of the agitating shaft 300, a mounting cavity 210-2 is provided at the bottom of the agitating member 200, a locking assembly is provided within the mounting cavity 210-2, and an unlocking assembly that cooperates with the locking assembly is provided at the bottom of the support column 210. When installing the agitating member 200, the insert 401 is inserted into the mounting cavity 210-2, and the locking assembly is used to axially position the insert 401. When disassembling the agitating member 200, the unlocking assembly is operated to release the locking assembly from the insert 401, allowing the agitating member 200 to be detached from the upper end of the agitating shaft 300.

[0213] The water-stirring member 200 and the stirring shaft 300 are axially positioned by a screw 210-7. Specifically, an assembly hole 210-3 is provided on the water-stirring member 200, which penetrates the water-stirring member 200 axially. The screw 210-7 is inserted from the upper end of the assembly hole 210-3 and tightened on the stirring shaft 300 to axially position the water-stirring member 200.

[0214] In this embodiment, the setting of the water seal structure 500 can, on the one hand, prevent washing water from entering the gap between the water stirring component 200 and the bottom of the barrel, and on the other hand, prevent washing water from entering the connection between the water stirring component 200 and the stirring shaft 300, so that the interior of the water stirring component 200 remains dry.

[0215] In this embodiment, a sealing groove 210 - 4 is provided on the top of the water-stirring member 200 , and a sealing cover 210 - 5 is provided at the sealing groove 210 - 4 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 .

[0216] 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.

[0217] The top of the flat plate portion and the top of the water-stirring member 200 are in the same plane.

[0218] 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.

[0219] 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.

[0220] 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.

[0221] 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 .

[0222] Preferably, 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 bottom surface of the washing tub 100, and a guide surface extending toward the periphery is formed there, for guiding the clothes below thereto to move toward the periphery along the guide surface during washing.

[0223] Example 4

[0224] As shown in Figures 15 and 16 , this embodiment provides a washing tub assembly and a washing machine having the same. In this embodiment, below the maximum radius of the water-stirring member 200, the distance between the sidewall of the support column 210 and the tub wall of the washing tub 100 decreases as the height increases.

[0225] 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.

[0226] 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.

[0227] 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.

[0228] 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.

[0229] 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.

[0230] 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.

[0231] 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.

[0232] 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.

[0233] 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.

[0234] 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 .

[0235] In a preferred embodiment of this invention, as shown in Figure 16, the upper surface of the water stirring tray 230 is a curved surface with a central region higher than the outer peripheral region. 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.

[0236] 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.

[0237] 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 second guide surface 214 to the first guide surface 213. Guided by the first guide surface 213, 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.

[0238] 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.

[0239] 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.

[0240] 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.

[0241] 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.

[0242] 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.

[0243] 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.

[0244] 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.

[0245] 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.

[0246] In a preferred embodiment of this embodiment, the agitating member 200 is installed in the washing tub 100. A certain distance exists between the lower end of the agitating rib 220 and the bottom of the washing tub 100 to avoid any blind spots between the agitating rib 220 and the bottom. Specifically, the lower end of the support column 210 includes a connecting portion 215 that is rotatably inserted into the mounting groove 100-1 on the tub bottom. The lower end of the agitating rib 220 is at least flush with, and preferably higher than, the upper end of the connecting portion 215. The agitating shaft, which drives the agitating member 200, is inserted from its lower end into the connecting portion 215 and secured thereto.

[0247] 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.

[0248] 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.

[0249] It is understood that the connection portion at the lower end of the support column can also be completely located inside the washing tub, with the agitator shaft inserted into the connection portion through the mounting groove 100-1 on the washing tub bottom. By setting a certain distance between the lower end surface of the connection portion and the washing tub bottom, or by setting the difference between the outer diameter and the inner diameter of the connection portion to be sufficiently small, the outer surface of the connection portion (including the outer wall and any lower end surface) and the area of ​​the washing tub bottom located outside the mounting groove 100-1 can contact the clothes, thereby preventing the formation of blind spots during cleaning.

[0250] 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.

[0251] 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.

[0252] Example 5

[0253] As shown in Figures 17 to 19, an embodiment of the present invention introduces a washing tub assembly comprising a washing tub 100 and a water stirring member 200 mounted on the washing tub 100. When the washing machine is in operation, the water stirring member 200 rotates to rotate the washing water in the washing tub 100, thereby washing the clothes in the washing tub 100.

[0254] In this embodiment, the washing tub 100 is a tub without holes.

[0255] 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.

[0256] 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 a screw 210-7 or a clamping structure.

[0257] 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 .

[0258] 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.

[0259] 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 is eliminated, and the area of ​​the tub bottom 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 tub bottom extending outward from the lower end of the support column 210 to the tub wall, thereby avoiding the accumulation of dirt.

[0260] Preferably, in some possible embodiments, the water-stirring member 200 extends upward from the bottom of the washing tub 100. The lower end of the water-stirring member 200 is sleeved onto the upper end of the stirring shaft 300 and is no lower than the bottom surface of the tub around the mounting hole. The lower end of the water-stirring member 200 is radially flush or substantially flush with the sidewall of the stirring shaft 300. The area of ​​the bottom of the washing tub 100 extending outward from the mounting hole to the tub wall of the washing tub 100 is the washing surface 100-31.

[0261] Combined with the structure in which the lower end surface of the water-stirring component 200 almost does not exist, the bottom of the washing tub 100 is completely exposed to the washing water during washing, and the clothes can come into contact with all parts of the bottom of the tub, especially the area around the installation through hole, avoiding the existence of cleaning dead corners at the bottom of the tub where dirt and grime are easily hidden.

[0262] In this embodiment, the horizontal plane where the mounting through hole is located is flush with the washing surface 100 - 31 ; or, the washing surface 100 - 31 has a protruding surface on the periphery of the mounting through hole.

[0263] In other possible embodiments, a mounting groove 100-1 is provided on the upper surface of the bottom of the washing bucket 100, the lower end of the support column 210 is inserted into the mounting groove 100-1, the outer periphery of the lower end of the support column 210 is rotatably matched with the groove wall of the mounting groove 100-1, and the upper surface of the bottom of the outer periphery of the mounting groove 100-1 is the washing surface 100-31.

[0264] Preferably, a water seal structure 500 is provided between the outer periphery of the lower end of the support column 210 and the groove wall of the installation groove 100-1, and the upper end surface of the water seal structure 500 and the inner surface of the barrel bottom at the outer periphery of the water seal structure 500 constitute the washing surface 100-31.

[0265] 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 .

[0266] The drain outlet 100-32 of the washing tub 100 is arranged on the washing surface 100-31 at the bottom of the tub, eliminating the bottom disc-shaped stirring portion, which can prevent the water stirring member 200 from hindering the flow of washing water to the drain outlet 100-32 on the washing surface 100-31, thereby improving the drainage speed.

[0267] In this embodiment, the washing tub assembly further includes a drain valve 600, which is disposed below the bottom of the washing tub 100, corresponding to the side of the drain port 100-32 away from the washing surface 100-31, and is used to open or close the drain port 100-32.

[0268] Specifically, in this embodiment, a water collection device is coaxially sleeved on the outside of the washing tub 100. The drainage pipeline of the washing equipment is connected to the bottom of the water collection device. The drain valve 600 is installed at the bottom of the water collection device. The drain valve 600 includes a valve plug and a bellows. One end of the bellows is connected to the valve plug, and the other end of the bellows is connected to the bottom of the water collection device. Preferably, the valve plug and the bellows are integrally formed. The bellows has a certain degree of elasticity, which can ensure that the valve plug has a certain range of reciprocating movement and always maintain the sealing of the water collection device. The water collection device can be an outer tub.

[0269] As shown in Figure 18, in this embodiment, the drain outlet 100-32 includes a drain surface 100-33 that matches the shape of the upper end surface of the drain valve 600. The drain surface 100-33 is a circular area on the bottom of the tub, with the same shape as the upper end surface of the drain valve. Multiple drainage holes 100-34 are provided on the drain surface 100-33. These holes 100-34 are arranged in a regular or irregular pattern throughout the bottom of the tub for draining water. The provision of the drain surface 100-33 and the drainage holes 100-34 on the drain surface 100-33 prevents clothing on the washing surface 100-31 from entering the drain outlet 100-32, ensuring smooth drainage. Furthermore, this prevents clothing from entering the drain outlet and obstructing the closing of the drain valve, ensuring a tight seal between the drain valve and the drain outlet.

[0270] Preferably, the drain valve 600 reciprocates along the axial direction of the washing tub 100 to open or close the drain port 100-32. Specifically, a driving component is provided below the washing tub for driving the valve plug of the drain valve 600 to reciprocate along the axial direction of the washing tub 100. The valve plug opens or closes the drain port under the drive of the driving component.

[0271] The upper end surface of the drain valve 600 is provided with protrusions 601 corresponding to the drainage holes 100-34. When the drain port 100-32 is closed, the protrusions 601 are inserted into the drainage holes 100-34 to clean and unclog the drainage holes and prevent them from being blocked. Preferably, the protrusions 601 are made of elastic material.

[0272] In this embodiment, the protrusion is columnar and extends axially along the washing tub. The cross-section of the protrusion can be of any shape. Preferably, the peripheral wall of the protrusion can be squeezed against the inner wall of the drainage hole to improve the dredging effect of the drainage hole.

[0273] Preferably, in order to ensure that the protrusion can be smoothly inserted into the drainage hole, the protrusion can be set to have a shape with a thin end and a thick root.

[0274] Preferably, the upper end of the protrusion 601 extends above the drainage surface 100-33 or the washing surface 100-31. In this embodiment, when the water stirring member stirs the water and clothes in the washing tub assembly, the clothes can rub against the end of the protrusion, causing the protrusion to move, so that the circumference of the protrusion can rub against the inner wall of the drainage hole, further cleaning the inner wall of the drainage hole.

[0275] In this embodiment, the protrusion 601 on the upper end surface of the drain valve 600 can also be used to improve the blocking effect of the drain hole 100-34.

[0276] In this embodiment, the upper end surface of the valve plug of the drain valve 600 constitutes the upper end surface of the drain valve 600, and the valve plug is made of elastic materials such as rubber. The protrusion 601 on the upper end surface of the drain valve 600 is molded on the valve plug. When the valve plug moves upward, the protrusions 601 on the upper end surface of the drain valve 600 are inserted into the drainage holes 100-34 one by one to seal each drainage hole 100-34. The upper end surface of the drain valve 600 abuts against the lower end surface of the drainage surface 100-33, further sealing the drain outlet 100-32 to ensure the sealing effect of the drain outlet 100-32.

[0277] In this embodiment, the drainage hole 100-34 extends in the vertical direction and is a hole with a cylindrical radial cross-section. The protrusion 601 is a column with a circular cross-section. The shape of the protrusion 601 is adapted to the shape of the drainage hole 100-34. When the valve plug moves upward, the protrusions 601 are inserted into the drainage holes 100-34 one by one to achieve sealing of the drainage holes 100-34.

[0278] Preferably, the diameter of the end of the protrusion 601 gradually decreases as it moves away from the drain valve 600, thereby ensuring smooth insertion of the protrusion 601 into the drain hole 100-34. In this embodiment, the end of the protrusion 601 is referred to as the root of the protrusion 601. The end of the protrusion 601 is the upper end of the protrusion 601, and the root of the protrusion 601 is the lower end of the protrusion 601.

[0279] Preferably, in this embodiment, the diameter of the upper end of the protrusion 601 is smaller than the aperture of the drainage hole 100-34, and the diameter of the lower end of the protrusion 601 is greater than or equal to the aperture of the drainage hole 100-34.

[0280] Further preferably, the diameter of the lower end of the protrusion 601 is larger than the aperture of the drainage hole 100-34, so that after the protrusion 601 is inserted, it forms an interference fit with the drainage hole 100-34, further improving the sealing effect.

[0281] Preferably, in this embodiment, the upper end of the protrusion 601 at least partially extends above the washing surface 100-31.

[0282] Specifically, as shown in Figure 19, in this embodiment, the protrusion 601 includes a first protrusion section 6011 and a second protrusion section 6012 extending from bottom to top, the first protrusion section 6011 is cylindrical, the diameter of the first protrusion section 6011 is greater than or equal to the aperture of the corresponding drainage hole 100-34, the second protrusion section 6012 is coaxially arranged on the top of the first protrusion section 6011, and the second protrusion section 6012 extends coaxially upward from the top of the first protrusion section 6011. The axial cross-section of the circumferential side of the second protrusion section 6012 is an upwardly inclined straight line, or a curve that bends upward and toward its axis.

[0283] In this embodiment, the upper end of the second convex section 6012 at least partially extends above the washing surface 100-31. Preferably, in this embodiment, the length of the first convex section 6011 is greater than or equal to the length of the drainage hole 100-34, and the lower end of the second convex section 6012 is flush with the washing surface 100-31 or is located above the washing surface 100-31. This can prevent dirt from accumulating at the upper end of the drainage hole 100-34.

[0284] Preferably, in this embodiment, the drain port 100 - 32 corresponds to the washing surface 100 - 31 of the vertically projected outer periphery of the water agitating member 200 .

[0285] Specifically, in this embodiment, the radius of the water-stirring component 200 is largest at a certain distance from the bottom of the barrel. This certain distance allows clothes to be washed below the position where the radius of the water-stirring component 200 is largest, and the distance between the drain outlet 100-32 and the axis of the water-stirring component 200 is greater than or equal to the distance between the outer edge of the water-stirring component 200 at the maximum radius and the axis of the water-stirring component 200.

[0286] Thus, during the washing process, the clothes in the washing tub 100 can be brought into contact with the drainage surface 100-33 while the clothes are rotating along the washing surface 100-31 around the axis of the water-stirring member 200, and while the clothes are driven by the water-stirring member 200 and move along the washing surface 100-31 toward the axis of the water-stirring member 200, thereby avoiding the accumulation of dirt at the drainage outlet 100-32 and ensuring the drainage effect of the drainage outlet 100-32.

[0287] It should be noted that, in the embodiment of the present invention, the radius of the water-stirring member 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.

[0288] Specifically, if the cross section of the agitating member is circular, the radius is the radius R1 of the circular cross section. If the cross section of the agitating member is non-circular, the radius is the distance R2 from the farthest point on the cross section to the rotation center.

[0289] In a further solution of this embodiment, the water-stirring member at the maximum radius Rmax is also at a certain distance from the barrel mouth of the washing barrel in the height direction, so that the washing water level can be higher than the water-stirring member at the maximum radius Rmax, so that the clothes can be washed above the position of the water-stirring member at the maximum radius Rmax.

[0290] In the above solution, the washing tub can accommodate clothes for washing both above and below the water-stirring member at the maximum radius Rmax. In this way, the outer surface of the water-stirring member can basically contact the clothes to be washed, generating friction with the clothes, thereby enhancing the washing effect by increasing the surface area in contact with the clothes.

[0291] In this embodiment, the water-stirring member 200 forms a first guide surface 213 at the point with the largest radius, which is used to guide the clothes below this point to move toward the periphery along the first guide surface 213 during washing; and a second guide surface 214 extending upward is formed below the point with the largest radius, which is used to guide the clothes to move along the second guide surface 214 toward the point with the largest radius of the water-stirring member 200 during washing, and guide the clothes to rise along the second guide surface 214 to the first guide surface 213 during washing.

[0292] 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.

[0293] In an embodiment of the present invention, a control method for a washing device is also provided, wherein the washing device is equipped with the above-mentioned washing tub assembly.

[0294] The control method of the washing equipment includes:

[0295] During the drainage process of the washing tub 100, the water stirring member 200 rotates to speed up the drainage.

[0296] Specifically, in this embodiment, by arranging the washing tub 100 so that the water stirring member 200 rotates during the drainage process, on the one hand, the washing water can flow toward the periphery and smoothly enter the drain port 100-32. On the other hand, when the water stirring member 200 rotates, the clothes in the washing tub 100 move upward and toward the periphery along the second guide surface 214 and the first guide surface 213, which can prevent the clothes from clogging the drain port 100-32 and increase the drainage speed.

[0297] Preferably, in this embodiment, the washing machine detects the drainage speed during the drainage process. When the drainage speed slows, the water stirring member is driven to rotate to agitate the clothes. Alternatively, when the washing machine detects that the drainage has timed out, the water stirring member is driven to rotate to agitate the clothes. Alternatively, during the drainage process, the washing machine drives the water stirring member to rotate intermittently or continuously to prevent clothes from clogging or blocking the drain outlet.

[0298] 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.

[0299] 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.

[0300] 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.

[0301] 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.

[0302] 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.

[0303] 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.

[0304] 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.

[0305] 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.

[0306] 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.

[0307] 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.

[0308] 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.

[0309] 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.

[0310] 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.

[0311] 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.

[0312] 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.

[0313] 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.

[0314] 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.

[0315] 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.

[0316] 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.

[0317] 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 .

[0318] Example 6

[0319] As shown in Figure 20, in this embodiment, the water-stirring component 200 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 from the top along the axial direction toward the assembly portion 210-1.

[0320] Specifically, in this embodiment, the assembly portion 210-1 is a solid cylinder, which can increase the connection strength of the water-stirring member 200. The water-stirring portion 240 has an integrally formed hollow structure, which is formed on the top of the assembly portion 210-1. The assembly portion 210-1 can also block the lower end of the hollow structure of the water-stirring portion 240.

[0321] As a specific embodiment, the water-stirring member 200 includes a support column 210, and a water-stirring rib 220 arranged on the side wall of the support column 210, protruding along the radial direction or near radial direction of the support column away from the axis of the support column 210. The water-stirring rib 220 extends along the axial direction of the support column in the length direction, and extends in the width direction away from the circumference of the support column. It can be arranged radially or deviate from the radial direction.

[0322] In this embodiment, the support column 210 includes an assembly portion 210-1 and a hollow column 210-8 coaxially connected to the upper portion of the assembly portion 210-1. The assembly portion 210-1 is a solid column, preferably a circular cylinder, and the hollow column 210-8 extends upward from the upper end surface of the assembly portion 210-1. The outer diameter of the hollow column 210-8 at the connection between the assembly portion 210-1 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 wall of the hollow column 210-8 smoothly transitions upward with the outer wall of the assembly portion 210-1.

[0323] The water-stirring portion 240 has a horizontal cross-section with its 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 hollow column 210-8, similar in shape to the outer shape of the support column 210.

[0324] Preferably, the water stirring rib 220 is also configured as a hollow structure.

[0325] Further preferably, the internal space of the water stirring rib 220 is connected to the cavity 210-9 inside the hollow column 210-8.

[0326] 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 .

[0327] 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 .

[0328] Specifically, the assembly portion 210 - 1 and the stirring shaft 300 are circumferentially positioned by splines and rotate together, and are axially positioned by screws 210 - 7 .

[0329] In this embodiment, the assembly portion 210-1 is provided with a spline groove 210-6 extending coaxially upward from the lower end surface of the assembly portion 210-1. The spline groove 210-6 is at least partially sleeved on the upper end portion of the agitator shaft 300 and is keyed to the agitator shaft 300. The spline groove 210-6 is formed on the assembly portion 210-1 of the water-stirring member 200.

[0330] In this embodiment, the top of the agitating member 200 is provided with an opening that communicates with the cavity 210-9 within the hollow column. A screw 210-7 passes through the opening and enters the cavity 210-9, downwardly engaging 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.

[0331] 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.

[0332] Specifically, the upper end of the assembly portion 210-1 is provided with a through-hole, preferably a threaded hole. The shaft of a screw 210-7 passes through the top of the assembly portion 210-1 and is tightened in the threaded hole, with the head of the screw 210-7 abutting the top of the assembly portion 210-1. Operators remove and install the screw 210-7 through the opening at the bottom of the sealing groove 210-4 and the cavity 210-9 of the hollow column 210-8. The screw is preferably a countersunk screw.

[0333] 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 .

[0334] 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.

[0335] The top of the flat plate portion and the top of the water-stirring member 200 are in the same plane.

[0336] 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.

[0337] 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.

[0338] 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.

[0339] 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 .

[0340] 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 tub assembly, characterized in that, Comprising: A washing tub (100); and, A water stirring member (200), including a support column (210), and water stirring ribs (220) extending along the axial direction of the support column (210), with the lower end of the support column (210) being rotatably fitted with the bottom of the washing tub (100); The area of the bottom of the tub extending outward from the lower end of the support column (210) to the tub wall can serve as a washing surface (100 - 31), and the drain opening (100 - 32) of the washing tub (100) is provided on the washing surface (100 - 31) of the bottom of the tub.

2. The washing tub assembly according to claim 1, wherein, The drain opening (100 - 32) includes: A drain surface (100 - 33), which is an area on the washing surface (100 - 31) of the bottom of the tub; Drain small holes (100 - 34), including a plurality of them provided on the drain surface (100 - 33) and penetrating the bottom of the tub.

3. The washing tub assembly according to claim 2, characterized in that It further includes a drain valve (600), which is arranged below the bottom of the washing tub (100), opposite to the side of the drain opening (100 - 32) away from the washing surface (100 - 31), and is used to open or close the drain opening (100 - 32); Preferably, the shape of the upper end surface of the drain valve (600) is the same as the shape of the drain surface (100 - 33).

4. The washing tub assembly according to claim 3, characterized in that Protrusions (601) corresponding to each of the drain small holes (100 - 34) are provided on the upper end surface of the drain valve (600). When the drain opening (100 - 32) is closed, the protrusions (601) are respectively inserted into each of the drain small holes (100 - 34); Preferably, the protrusions (601) are made of an elastic material.

5. The washing tub assembly according to claim 4, wherein, The drain small holes (100 - 34) extend along the axial direction of the washing tub (100), and the drain valve (600) reciprocates along the axial direction of the washing tub (100) to open or close the drain opening (100 - 32).

6. The washing tub assembly according to claim 4, wherein, The upper end of the protrusion (601) extends above the drain surface (100 - 33) or the washing surface (100 - 31).

7. The washing tub assembly according to any one of claims 1 to 6, characterized in that, The drain opening (100 - 32) is provided on the washing surface (100 - 31) outside the vertical projection of the water stirring member (200).

8. The washing tub assembly according to claim 7, characterized in that The water stirring member (200) has the largest radius at a certain distance from the bottom of the tub, and this certain distance enables the clothes to be washed below the position where the water stirring member (200) has the largest radius. The distance between the drain opening (100 - 32) and the axis of the water stirring member (200) is greater than or equal to the distance between the outer edge of the position where the water stirring member (200) has the largest radius and the axis of the water stirring member (200).

9. The washing tub assembly according to claim 8, characterized in that The water stirring member (200) has a first guiding surface (213) below the position where the radius is the largest, which is used to guide the clothes below this position to move outward along the first guiding surface (213) during washing; A second guiding surface (214) extending upward is formed on the side surface of the support column, which is used to guide the clothes to move along the second guiding surface (214) towards the first guiding surface (213) during washing.

10. The washing tub assembly according to any one of claims 1 to 6, characterized in that the water stirring member (200) has the largest radius at a certain distance from the bottom of the tub, and this certain distance enables the clothes to be washed below the position where the radius of the water stirring member (200) is the largest; the water stirring member has a guiding surface for guiding the movement of the clothes during washing below the position where its radius is the largest, and the guiding surface guides the clothes to move upward from the central area of the bottom of the washing tub and then move outward.

11. The washing tub assembly according to claim 10, characterized in that the guiding surface includes a first guiding surface that extends from the area near the axis to the outer periphery and is used to guide the clothes below the position where the radius of the water stirring member (200) is the largest to move along the first guiding surface to the outer periphery during washing; Preferably, the guiding surface further includes a second guiding surface that is arranged below the first guiding surface. During washing, part or all of the clothes move towards the central area along the bottom of the washing tub and then move upward along the second guiding surface to the first guiding surface.

12. The washing tub assembly according to claim 11, characterized in that, A water stirring disk perpendicular to the axis of the support column is provided on the water stirring member support column, and the outer periphery of the water stirring disk forms the position where the radius of the water stirring member is the largest; Preferably, the first guiding surface is formed on the lower side of the water stirring disk and extends obliquely upward from the area near the center of the water stirring disk to the outer periphery.

13. A washing device, characterized in that, A washing tub assembly including the washing equipment according to any one of claims 1-12.

14. A control method for a washing device as described in claim 13 above, characterized in that, The control method includes the following steps: During the drainage process of the washing tub (100), the water stirring member (200) rotates to accelerate drainage.

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