阅读说明：本技术 一种洗衣机波轮组件的拆卸方法及洗衣机 (Washing machine impeller assembly disassembling method and washing machine ) 是由 贾若坦 郝世龙 劳春峰 金学峰 于 2019-03-07 设计创作，主要内容包括：本发明提供了一种洗衣机波轮组件的拆卸方法及洗衣机,波轮组件与输出轴卡合固定,在所述波轮组件上设有用于所述波轮组件轴向卡合定位的卡合结构,在所述输出轴上开设有与所述卡合结构相匹配的至少一个卡槽；所述拆卸方法为利用具有磁体的拆卸工具与卡合结构之间产生的磁力,使得所述卡合结构与卡槽脱离。在需要拆卸波轮组件时,只需要将拆卸工具靠近卡合结构就可,由于磁力的穿透性,可以在不对波轮组件的任何部件进行拆卸的情况下,实现对于卡合结构施加力,实现卡合固定的脱离,使得卡合结构的结构设置简单,使得拆卸操作简单,省力方便。在波轮组件拆卸后将拆卸工具移开后,磁力撤销,使得卡合结构复位,再将波轮组件安装到位。(The invention provides a washing machine impeller assembly dismounting method and a washing machine, wherein the impeller assembly is fixedly clamped with an output shaft, a clamping structure for axially clamping and positioning the impeller assembly is arranged on the impeller assembly, and at least one clamping groove matched with the clamping structure is formed in the output shaft; the disassembling method is to separate the clamping structure from the clamping groove by utilizing the magnetic force generated between the disassembling tool with the magnet and the clamping structure. When the impeller subassembly is dismantled to needs, only need be close to the block structure with extracting tool just can, because the penetrability of magnetic force, can realize exerting force to the block structure under the condition of not dismantling any part of impeller subassembly, realize that the block is fixed breaks away from for the structure setting of block structure is simple, makes dismantlement easy operation, and is laborsaving convenient. After the impeller assembly is disassembled and the disassembling tool is removed, the magnetic force is cancelled, so that the clamping structure is reset, and the impeller assembly is installed in place.)

1. A method for disassembling an impeller assembly of a washing machine is characterized in that the impeller assembly is fixedly clamped with an output shaft, and is provided with a clamping structure for axially clamping and positioning the impeller assembly, and the output shaft is provided with at least one clamping groove matched with the clamping structure; the disassembling method is to separate the clamping structure from the clamping groove by utilizing the magnetic force generated between the disassembling tool with the magnet and the clamping structure.

2. Disassembly method according to claim 1, characterized in that it has the following steps:

A. approaching a disassembling tool to the clamping structure;

B. magnetic force which is mutually attracted is generated between the disassembling tool and the clamping structure, so that the clamping structure is separated from the clamping groove;

C. and moving the impeller assembly towards the direction of the clothes inlet and disassembling the impeller assembly.

3. The disassembling method according to claim 2, further comprising a step B0 before the step B, wherein when the distance between the disassembling tool and the engaging structure is equal to or less than the magnetic force induction range therebetween during the process of the disassembling tool approaching the engaging structure, a mutually attractive magnetic force is generated between the disassembling tool and the engaging structure, so that the disassembling tool and the engaging structure have a moving tendency of approaching each other.

4. The disassembling method according to claim 2, wherein in step B, the disassembling tool reaches the upper end of the pulsator assembly under the action of magnetic force, and the engaging structure moves towards the disassembling tool under the action of magnetic force, so that the locking between the engaging structure and the slot is released.

5. The disassembling method according to claim 2, further comprising a step A0 between the steps A, wherein the disassembling tool is inserted into the inner tub from the laundry inlet of the washing machine and is close to the pulsator assembly.

6. The disassembling method according to any one of claims 1 to 5, wherein the engaging structure includes an elastic member for providing a pushing force to enable the engaging structure and the slot to be in an engaging state; after the disassembling tool reaches the upper end of the impeller assembly, the magnetic force generated between the disassembling tool and the clamping structure is larger than the pushing force provided by the elastic piece.

7. The disassembly method of any of claims 1-5, wherein the engagement structure comprises a retainer that matingly engages the slot, a restraining member that locks the retainer in the engaged state, the retainer being radially movable relative to the restraining member.

8. The disassembling method according to claim 7, wherein the restricting member and/or the chucking member are made of a metal material which can be attracted by a magnet.

9. The disassembly method according to any one of claims 1 to 5, wherein the disassembly tool comprises a magnet, a magnet fixing portion for fixing the magnet, and a hand-held portion located at an upper portion of the magnet fixing portion, and the hand-held portion has a plurality of hand-held ribs protruding outward in a circumferential direction.

10. A washing machine, characterized in that the disassembly of the pulley assembly is carried out using the disassembly method of any one of claims 1 to 9.

Technical Field

The invention belongs to the technical field of washing machines, and particularly relates to a washing machine impeller assembly dismounting method and a washing machine.

Background

After the existing washing machine is used for a certain time, dirt and bacteria are usually left at invisible positions on the lower surface of the impeller, the inner barrel and the outer barrel wall, and the washing machine is not easy to clean. The long-term washing is not clear, and the diseases such as cross infection, skin diseases and the like can be caused. At present, the most reliable method for cleaning the above parts is to disassemble and clean the parts. However, the impeller of the existing washing machine is fixedly connected with the output shaft of the driving part through bolts, so that the impeller is troublesome to disassemble and assemble and is not beneficial to cleaning the impeller; and the screw soaked in water for a long time is combined and bonded with the wave wheel plastic part, and the problem that the screw cannot be detached often occurs. Also, some of the pulsator of the washing machine are detachably connected to the output shaft, but the detachable structure is too complex, and the problem of inconvenient detachment still exists.

Disclosure of Invention

The invention provides a method for disassembling a pulsator assembly of a washing machine, aiming at solving the problem that the pulsator assembly of the washing machine is inconvenient to disassemble and realizing the quick disassembly of the pulsator assembly of the washing machine.

In order to achieve the technical purpose, the invention adopts the following technical scheme:

a method for disassembling an impeller assembly of a washing machine is characterized in that the impeller assembly is fixedly clamped with an output shaft, a clamping structure for axially clamping and positioning the impeller assembly is arranged on the impeller assembly, and at least one clamping groove matched with the clamping structure is formed in the output shaft; the disassembling method is to separate the clamping structure from the clamping groove by utilizing the magnetic force generated between the disassembling tool with the magnet and the clamping structure.

Further, the disassembling method has the following steps: a. Approaching a disassembling tool to the clamping structure;

B. magnetic force which is mutually attracted is generated between the disassembling tool and the clamping structure, so that the clamping structure is separated from the clamping groove;

C. and moving the impeller assembly towards the direction of the clothes inlet and disassembling the impeller assembly.

Further, a step A0 is provided between the steps A, the disassembling tool is extended into the inner barrel from the clothes inlet of the washing machine and is close to the impeller component.

Further, step B0 is provided before step B, in the process that the detaching tool approaches the engaging structure, when the distance between the detaching tool and the engaging structure is equal to or less than the magnetic force induction range therebetween, a magnetic force is generated between the detaching tool and the engaging structure, so that the detaching tool and the engaging structure have a tendency to move closer to each other.

Further, in step B, the detaching tool reaches the upper end of the pulsator assembly under the action of magnetic force, and the engaging structure moves towards the detaching tool under the action of magnetic force, so that the locking between the engaging structure and the clamping groove is released.

Furthermore, the clamping structure comprises an elastic part which is used for providing a pushing force to enable the clamping structure and the clamping groove to be in a clamping state; after the disassembling tool reaches the upper end of the impeller assembly, the magnetic force generated between the disassembling tool and the clamping structure is larger than the pushing force provided by the elastic piece.

Furthermore, the clamping structure comprises a clamping piece matched with the clamping groove for clamping and a limiting piece for locking the clamping piece in a clamping state, and the clamping piece can move radially relative to the limiting piece.

Further, the limiting piece and/or the clamping piece are made of metal materials which can be adsorbed by the magnet.

Further, the extracting tool includes the magnet, is used for fixing the magnet fixed part of magnet and is located handheld portion on magnet fixed part upper portion, handheld portion has circumference and outwards stretches out a plurality of handheld muscle that set up.

Furthermore, an annular handle is arranged at the upper end of the handheld part.

Further, the retainer is spherical.

Based on the disassembly method of the impeller assembly of the washing machine, the invention also provides the washing machine with the disassembly method, so as to solve the problem that the impeller of the existing washing machine is inconvenient to disassemble and realize the quick disassembly of the impeller of the washing machine.

A washing machine adopts the disassembly method to disassemble the pulley component.

According to the disassembling method of the impeller assembly of the washing machine, the clamping structure is separated from the clamping groove through the magnetic force between the disassembling tool and the clamping structure; when the impeller subassembly is dismantled to needs, only need be close to the block structure with extracting tool just can, because the penetrability of magnetic force, can realize exerting force to the block structure under the condition of not dismantling any part of impeller subassembly, realize that the block is fixed breaks away from for the structure setting of block structure is simple, makes dismantlement easy operation, and is laborsaving convenient. After the impeller assembly is disassembled and the disassembling tool is removed, the magnetic force is cancelled, so that the clamping structure is reset, and the impeller assembly is installed in place.

Other features and advantages of the present invention will become more apparent from the following detailed description of the invention when taken in conjunction with the accompanying drawings.

Drawings

Fig. 1 is a flowchart illustrating an embodiment of a method for disassembling a pulsator assembly for a washing machine according to the present invention;

FIG. 2 is a schematic structural view of a washing machine in which a pulsator assembly is disassembled using the method of FIG. 1;

FIG. 3 is an enlarged sectional view taken along line A-A in FIG. 2;

FIG. 4 is an enlarged view of the engagement structure of FIG. 3;

FIG. 5 is an enlarged view of a portion of the wave wheel assembly of FIG. 3, shown disassembled;

FIG. 6 is a schematic view of the output shaft of FIG. 3;

FIG. 7 is an enlarged schematic view of the second output shaft of FIG. 6;

FIG. 8 is an enlarged schematic view of the restriction member of FIG. 5;

FIG. 9 is an enlarged schematic view of the positioning chamber of FIG. 3;

FIG. 10 is a schematic view of the removal tool;

FIG. 11 is a schematic front view of the structure of FIG. 10;

FIG. 12 is a schematic cross-sectional view of FIG. 11;

fig. 13 is a second construction view of the washing machine using the flowchart of fig. 1;

FIG. 14 is an enlarged view of the snap structure of FIG. 13;

FIG. 15 is a schematic view of the output shaft of FIG. 13;

fig. 16 is a third structural view of the washing machine using the flowchart of fig. 1;

fig. 17 is an enlarged schematic view of the engagement structure of fig. 16.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.

In the description of the present invention, it should be noted that the terms "inner", "upper", "lower", "left", "right", and the like indicate orientations or positional relationships based on the positional relationships shown in the drawings, and the direction close to the axis of the pulsator assembly is "inner" and the direction of the axis of the pulsator assembly is "outer". The terminology is for the purpose of describing the invention only and is for the purpose of simplifying the description, and is not intended to indicate or imply that the device or element so referred to must be in a particular orientation, constructed and operated, and is not to be considered limiting of the invention. Moreover, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Referring to fig. 1, for convenience of description, referring to a first washing machine for detaching a pulsator assembly according to an embodiment of a method for detaching a pulsator assembly of a washing machine according to the present invention, referring to fig. 2 to 12, the washing machine includes an output shaft 20 connected to a driving motor, and a pulsator assembly 10 detachably connected to the output shaft 20, the pulsator assembly 10 may be integrally engaged with and disengaged from the output shaft 20, the pulsator assembly 10 has a pulsator 1 and an engaging structure 2 for axially positioning the pulsator assembly 10, and the output shaft 20 is provided with at least one engaging groove 201 matched with the engaging structure 2.

The disassembling method of the pulsator assembly 10 is to utilize the magnetic force generated between the disassembling tool 30 with a magnet and the clamping structure 2 to make the clamping structure 2 separated from the clamping groove 201; the disengagement of the clamping structure 2 from the clamping groove 201 is realized by the magnetic force between the detaching tool 30 and the clamping structure 2; when impeller subassembly 10 is dismantled to needs, only need be close to block structure 2 with extracting tool 30 just can, because the penetrability of magnetic force, can realize exerting magnetic force to block structure 2 under the condition of not dismantling any part of impeller subassembly 10, realize breaking away from of the fixed 2 of block for block structure 2's structure sets up simply, makes the dismantlement easy operation, and is laborsaving convenient. After the impeller assembly 10 is disassembled and the disassembling tool is removed, the magnetic force is removed, so that the clamping structure is reset, and then the impeller assembly 10 is installed in place.

In the present embodiment, the removal tool 30 is required for removing the engaging structure 2, and the removal tool 30 has a magnet 301, and the magnet 301 is preferably a magnet or an electromagnet. When the pulsator assembly 10 needs to be disassembled, the disassembling tool 30 is placed above the clamping structure 2 of the pulsator assembly 10, or placed in the moving direction in which the clamping structure 2 is separated, after the disassembling tool 30 approaches the clamping structure 2, attractive magnetic force is generated between the disassembling tool 30 and the clamping structure 2, the clamping structure 2 is attracted to move towards the disassembling tool 30, namely to move upwards, so that the clamping structure 2 is separated from the clamping groove 201, namely the axial locking between the pulsator assembly 10 and the output shaft 20 is released; then, the impeller assembly 10 moves upwards to be separated from the output shaft 20, so that the impeller assembly 10 is disassembled; the removal tool 30 is then removed, so that the catch 2 is reset. After the pulsator assembly 10 is cleaned, the pulsator assembly 10 is mounted on the output shaft 20, and the engaging structure 2 is engaged with the engaging groove 201.

The disassembling method of the pulsator assembly 10 comprises the following steps:

a0, the disassembling tool 30 is inserted into the inner tub from the clothes inlet of the washing machine and close to the pulsator assembly 10.

A. By positioning the removal tool 30 close to the engaging structure 2, the engaging structure 2 is disposed at the center of the pulsator assembly 10, that is, by positioning the removal tool 30 close to the center of the pulsator assembly 10.

B. The detaching tool 30 and the engaging structure 2 generate a magnetic force attracting each other, so that the engaging structure 2 is disengaged from the slot 201.

Specifically, when the detaching tool 30 reaches the upper end of the pulsator assembly 10 under the action of the magnetic force, the detaching tool 30 cannot move in a direction to continuously approach the engaging structure 2, and the engaging structure 2 moves in a direction to the detaching tool 30 under the action of the magnetic force, so that the locking between the engaging structure 2 and the slot 201 is released.

C. The pulsator assembly 30 is moved toward the laundry inlet and is disassembled.

Before the step B, there is a step B0, when the distance between the detaching tool 30 and the engaging structure 2 is equal to or less than the magnetic force sensing range therebetween during the process of the detaching tool 30 approaching the engaging structure 2, a magnetic force is generated between the detaching tool 30 and the engaging structure 2, so that the detaching tool 30 and the engaging structure 2 have a tendency to move closer to each other.

Referring to fig. 4, the fastening structure 2 further includes an elastic member 23 providing a driving force for the fastening structure 2, after the fastening structure 2 is fastened and fixed with the fastening groove 201, the elastic member 23 provides a downward elastic force to the fastening structure 2, and when the detaching tool 30 reaches the upper end of the pulsator assembly 10, a magnetic force generated between the detaching tool 30 and the fastening structure 2 is greater than the driving force provided by the elastic member 23, so that the fastening structure 2 moves upward. After considering gravity and friction, the magnetic attraction force given to the engaging structure 2 by the detaching tool 30 is greater than the sum of the pushing force given by the elastic member 23 and the gravity of the engaging structure 2, so that the engaging structure 2 can move upward, and the friction needs to be overcome.

Referring to fig. 4, the engaging structure 2 includes a fastening member 21 for engaging with the engaging slot 201, and a limiting member 22 for limiting the fastening member 21, wherein the fastening member 21 is radially movable relative to the limiting member 22, and the limiting member 22 is provided with a first through hole 221 for passing the output shaft 20. The limiting piece 22 limits the axial position of the clamping piece 21, and the clamping piece 21 can move radially relative to the limiting piece 22 to realize the clamping and the disengagement of the clamping piece 21 and the clamping groove 201; when the pulsator assembly 10 is disassembled and the clamping member 21 moves away from the output shaft 20, the clamping member 21 is withdrawn from the clamping groove 201, and the axial clamping lock between the clamping structure 2 and the output shaft 20 is released.

The pulsator assembly 10 further comprises a positioning cavity 3 for accommodating the chucking member 21 and the limiting member 22, the positioning cavity 3 has a positioning cavity wall 31 for limiting radial displacement of the chucking member 21, the chucking member 21 contacts the positioning cavity wall 31, a second through hole 32 for the output shaft 20 to extend into is opened at the bottom of the positioning cavity 3, and the upper end of the positioning cavity 3 is an open end. The clamping piece 21 is limited and locked by the limiting piece 22, the positioning cavity wall 31 and the clamping groove 201, the clamping piece 21 contacts the bottom of the clamping groove 201 on the inner side and the outer side in the radial direction to contact the positioning cavity wall 31, and the positioning cavity wall 31 gradually extends outwards in the direction close to the open end of the positioning cavity 3 by setting the positioning cavity wall 31, namely the positioning cavity wall 31 extends upwards and outwards; after the pulsator assembly 10 is mounted and fixed, the distance between the positioning chamber wall 31 and the bottom of the groove 201 gradually increases in the upward direction, that is, the radial distance gradually increases in the upward direction. When the pulsator assembly 10 is disassembled, the disassembling tool 30 attracts the catching structure 2 to move upward, so that the chucking member 21 and the restriction member 22 move upward, so that the chucking member 21 has a space to move outward in a radial direction; when the clamping piece 21 moves upwards and reaches the upper end of the clamping groove 201, due to the inclined arrangement of the positioning cavity wall 31, after the clamping piece 21 moves upwards, the positioning cavity wall 31 does not block the clamping piece 21 any more, so that the clamping piece 21 moves outwards and is separated from the clamping groove 201, then the impeller assembly 10 is lifted upwards, and at the moment, the clamping locking is already released.

In other embodiments, the positioning cavity 3 may not be provided with an opening at the upper end, but rather, a slightly larger opening may be provided at the upper end of the positioning cavity 3.

At least one of the clamping piece 21 and the limiting piece 22 of the clamping structure 2 is made of metal material which can be absorbed by the magnet 301; . When the limiting piece 22 is made of magnetic metal material and the clamping piece 21 is not made of magnetic metal material, the disassembling tool 30 gives an upward attraction force to the limiting piece 22, and drives the clamping piece 21 to move upwards together when the limiting piece 22 moves upwards; a space which is radially movable with respect to the delimiting member 22 is provided after the clamping member 21 has been moved upwards; the clamping piece 21 is clamped and separated from the clamping groove 201.

When the clamping member 21 is made of magnetic metal material and the limiting member 22 is not used, the disassembling tool 30 attracts the clamping member 21 to move upwards to drive the limiting member 22 to move upwards together, and then the clamping member 21 has a space capable of moving radially, and when the clamping member 21 reaches the upper end of the clamping groove 201, the clamping member 21 moves outwards in the radial direction, so that the clamping member 21 is withdrawn from the clamping groove 201, and the axial clamping locking between the clamping structure 2 and the output shaft 20 is released.

When the magnetic metal material is used for both the chucking member 21 and the restricting member 22, the removing tool 30 attracts both the chucking member 21 and the restricting member 22 to move upward, and the chucking member 21 and the restricting member 22 move upward together because the restricting member 22 is also given a downward force by the resilient member 23.

In the embodiment, the limiting member 22 limits the position of the clamping member 21 in the axial direction, and the clamping member 21 can move up and down along with the limiting member 22 in the axial direction; the limiting member 22 only has axial up-and-down movement during the engagement and disengagement process, while the clamping member 21 also needs to have radial movement; it is preferable that the setting restricting member 22 is made of a metal material which can be attracted by the magnet 301 and the chucking member 21 is made of a material which is not attracted by the magnet 301.

As for the structural arrangement of the clamping piece 21, a multi-center structural form, such as a sphere, an ellipse and an irregular shape, can be adopted; the contact part of the clamping piece 21 and the positioning cavity wall 31 is preferably arranged to adopt an arc surface structure, so that the relative movement of the clamping piece 21 and the positioning cavity wall 31 after contact is facilitated; it is more preferable to provide the retainer 21 in a spherical shape, which does not require positioning when the retainer 21 is attached, and which is smooth in movement when moving, engaging, and disengaging from the card slot.

One or more clamping pieces 21 can be arranged in the clamping structure 2; preferably, three clamping pieces 21 are arranged in the accommodating cavity 220, and three clamping grooves 201 are formed in the circumferential direction of the output shaft 20; through the chucking piece 21 that sets up three axial settings, be favorable to increasing the stability behind the impeller subassembly 10 block is fixed.

In the present embodiment, referring to fig. 8, the restriction member 22 includes a housing cavity 220 for housing the chucking member 21, the chucking member 21 is located in the housing cavity 220, the output shaft 20 passes through the housing cavity 220, and the housing cavity 220 and the output shaft 20 are coaxially arranged; after the clamping structure 2 is clamped in the clamping groove 201, the clamping groove 201 is partially or completely positioned in the accommodating cavity 220, and the inner side of the clamping member 21 is contacted with the bottom of the clamping groove 201. A first through hole 221 is opened at the center of the accommodating chamber 220. An opening 222 for extending the clamping piece 21 is formed in the cavity wall of the accommodating cavity 220, the diameter of the opening 222 is smaller than that of the clamping piece 21, and the clamping piece 21 extends out of the opening 222 and contacts with the positioning cavity wall 31. The limiting piece 22 is provided with a containing cavity 220, and the containing cavity 220 is sleeved on the outer side of the output shaft 20, so that the limiting piece 22 can only move up and down; when the limiting piece 22 moves up and down, the clamping piece 21 can be driven to move synchronously, and the clamping piece 21 can move radially, so that the clamping piece 21 is clamped with and separated from the clamping groove 201. The limiting piece 22 further comprises a first limiting edge 223 extending upwards along the first through hole 221, the first limiting edge 223 is sleeved on the outer side of the output shaft 20, and the lower end of the elastic piece 23 is sleeved on the outer side of the first extending edge 223; by arranging the first limiting edge 223, on one hand, the limiting member 22 can be ensured to move up and down stably on the output shaft 20, and the stability of the movement of the limiting member 22 is ensured; on the other hand, the cooperation of the elastic member 23 and the first limiting edge 223 is facilitated, and the elastic force is better transmitted to the limiting member 22.

Referring to fig. 4, the pulsator assembly 10 further includes an outer cover 4 fixedly disposed with the pulsator 1, an elastic member 23 is positioned between the outer cover 4 and the limiting member 22, and a lower end of the elastic member 23 is in contact with the limiting member 22 and an upper end thereof is in contact with the outer cover 4. The outer cover 4 covers the outer side of the positioning cavity 3 to seal the positioning cavity 3 and prevent washing water from entering the positioning cavity 3; the outer cover 4 has a lower mouth receptacle in which the positioning chamber 3 is located. A fourth extension edge 41 extending downwards is arranged on the outer cover 4, and the upper end of the elastic member 23 is sleeved on the outer side of the fourth extension edge 41.

Referring to fig. 5 and 9, for the structural arrangement of the positioning cavity 3, the positioning cavity 3 is a cavity formed by extending and surrounding the positioning cavity wall 31, and the positioning cavity wall 31 is a conical surface; in order to fix the positioning cavity 3, the positioning cavity 3 is further provided with a positioning fixing portion 33 radially extending outwards, the positioning fixing portion 33 is fixedly connected with the impeller 1, a second positioning edge 34 extending downwards is arranged at the edge of the second through hole 32, and the second positioning edge 34 is favorable for mounting and positioning the positioning cavity 3 and has stability after fixing.

The impeller assembly 10 further comprises a connecting piece 5 sleeved outside the output shaft 20, a locking piece for preventing the connecting piece 5 and the output shaft 20 from rotating relatively is arranged between the connecting piece 5 and the output shaft 20, and the connecting piece 5 is positioned at the lower part of the impeller assembly 10;

the output shaft 20 comprises a first output shaft 202 and a second output shaft 203 which are coaxially and fixedly arranged, the diameter of the first output shaft 202 is larger than that of the second output shaft 203, and a stepped hole 5 matched with the first output shaft 202 and the second output shaft 203 is formed in the connecting piece 5; the second locating edge 34 is located within the stepped bore 5.

For the structure of the removal tool 30, a single magnet may be used, but for convenience of operation, it is preferable that the removal tool 30 includes a magnet 301, a magnet fixing portion 302 for fixing the magnet, and a hand-held portion 303 located on an upper portion of the magnet fixing portion 302, and the hand-held portion 303 has a plurality of hand-held ribs extending outward in a circumferential direction. Have handheld portion 303 through setting up extracting tool, it is convenient to be favorable to taking extracting tool, place extracting tool 30 behind enclosing cover 4, have great mutual appeal between extracting tool 30 and the limiting piece 22 of block structure 2, dismantle the back at impeller subassembly 10, need overcome the magnetic attraction between extracting tool 30 and the limiting piece 22 and just can take away extracting tool 30, therefore set up handheld portion 303, be convenient for give extracting tool 30 great power through the hand. An annular pull 304 is provided at the upper end of the hand grip 303, the pull 304 being provided to facilitate access to the removal tool 30.

Referring to fig. 13 to 15, a second structure of the washing machine for disassembling the pulsator assembly using the above method is mainly different from the first structure in that: the specific structure of the engaging structure is different, and the other structure may be the same as the first structure.

The washing machine comprises an output shaft 20 connected with a driving motor and a wave wheel assembly 10 detachably connected with the output shaft 20, the wave wheel assembly 10 can be integrally fixed with or separated from the output shaft 20 in a clamping mode, the wave wheel assembly 10 is provided with a wave wheel 1 and a clamping structure 2 used for axially positioning the wave wheel assembly 10, and at least one clamping groove 201 matched with the clamping structure 2 is formed in the output shaft 20.

The disassembling method of the pulsator assembly 10 is to utilize the magnetic force generated between the disassembling tool 30 with a magnet and the clamping structure 2 to make the clamping structure 2 separated from the clamping groove 201; the disengagement of the clamping structure 2 from the clamping groove 201 is realized by the magnetic force between the detaching tool 30 and the clamping structure 2; when impeller subassembly 10 is dismantled to needs, only need be close to block structure 2 with extracting tool 30 just can, because the penetrability of magnetic force, can realize exerting magnetic force to block structure 2 under the condition of not dismantling any part of impeller subassembly 10, realize breaking away from of the fixed 2 of block for block structure 2's structure sets up simply, makes the dismantlement easy operation, and is laborsaving convenient. After the impeller assembly 10 is disassembled and the disassembling tool is removed, the magnetic force is removed, so that the clamping structure is reset, and then the impeller assembly 10 is installed in place.

In the present embodiment, the removal tool 30 is required for removing the engaging structure 2, and the removal tool 30 has a magnet 301, and the magnet 301 is preferably a magnet or an electromagnet. When the pulsator assembly 10 needs to be disassembled, the disassembling tool 30 is placed above the clamping structure 2 of the pulsator assembly 10, or placed in the moving direction in which the clamping structure 2 is separated, after the disassembling tool 30 approaches the clamping structure 2, attractive magnetic force is generated between the disassembling tool 30 and the clamping structure 2, the clamping structure 2 is attracted to move towards the disassembling tool 30, namely to move upwards, so that the clamping structure 2 is separated from the clamping groove 201, namely the axial locking between the pulsator assembly 10 and the output shaft 20 is released; then, the impeller assembly 10 moves upwards to be separated from the output shaft 20, so that the impeller assembly 10 is disassembled; the removal tool 30 is then removed, so that the catch 2 is reset. After the pulsator assembly 10 is cleaned, the pulsator assembly 10 is mounted on the output shaft 20, and the engaging structure 2 is engaged with the engaging groove 201.

Referring to fig. 2, the disassembling method of the pulsator assembly 10 has the following steps:

a0, the disassembling tool 30 is inserted into the inner tub from the clothes inlet of the washing machine and close to the pulsator assembly 10.

A. By positioning the removal tool 30 close to the engaging structure 2, the engaging structure 2 is disposed at the center of the pulsator assembly 10, that is, by positioning the removal tool 30 close to the center of the pulsator assembly 10.

B. The detaching tool 30 and the engaging structure 2 generate a magnetic force attracting each other, so that the engaging structure 2 is disengaged from the slot 201.

Specifically, when the detaching tool 30 reaches the upper end of the pulsator assembly 10 under the action of the magnetic force, the detaching tool 30 cannot move in a direction to continuously approach the engaging structure 2, and the engaging structure 2 moves in a direction to the detaching tool 30 under the action of the magnetic force, so that the locking between the engaging structure 2 and the slot 201 is released.

C. The pulsator assembly 30 is moved toward the laundry inlet and is disassembled.

Before the step B, there is a step B0, when the distance between the detaching tool 30 and the engaging structure 2 is equal to or less than the magnetic force sensing range therebetween during the process of the detaching tool 30 approaching the engaging structure 2, a magnetic force is generated between the detaching tool 30 and the engaging structure 2, so that the detaching tool 30 and the engaging structure 2 have a tendency to move closer to each other.

In this embodiment, the engaging structure 2 includes a fastening member 21 engaged with the engaging slot 201, and a limiting member 22 for limiting the fastening member 21, wherein the limiting member 22 has a flat plate-shaped body 220, a first through hole 221 formed on the flat plate-shaped body 220, and a first limiting edge 223 extending upward along the first through hole 221, and the fastening member 21 is located below the flat plate-shaped body 220; that is, the delimiting member 22 delimits the axial reach of the clamping member 21 to the highest position, i.e. the clamping member 21 is in close proximity to the contact delimiting member 22 or the clamping member 21 is located at a distance below the delimiting member 22.

When the restricting member 22 is made of a magnetic metal material and the chucking member 21 is not used, that is, the restricting member 22 cannot be brought together when it is moved upward, but the restricting member 22 restricts the position of the chucking member 21 that can be reached in the axial direction, and the chucking member 21 is movable radially and also axially relative to the restricting member 22. The limiting piece 22 limits the clamping piece 21 to be at the highest position in the axial direction, and the clamping piece 21 can move radially relative to the limiting piece 22 after the limiting piece 22 moves upwards to realize the clamping and the disengagement of the clamping piece 21 and the clamping groove 201; when the pulsator assembly 10 is disassembled and the clamping member 21 moves away from the output shaft 20, the clamping member 21 is withdrawn from the clamping groove 201, and the axial clamping lock between the clamping structure 2 and the output shaft 20 is released.

When the fastening member 21 is made of the magnetic metal material and the limiting member 22 is not used, the disassembling tool 30 attracts the fastening member 21 to move upward, at this time, the fastening member 21 pushes the limiting member 22 to move upward together, and then the fastening member 21 has a space capable of moving radially, and when the fastening member 21 reaches the upper end of the clamping groove 201, the fastening member 21 moves radially outward, so that the fastening member 21 is withdrawn from the clamping groove 201, and the axial clamping lock between the clamping structure 2 and the output shaft 20 is released.

When the magnetic metal material is used for both the chucking member 21 and the restricting member 22, the removal tool 30 attracts both the chucking member 21 and the restricting member 22 to move upward, facilitating the elastic member 23 to give the restricting member 22 a downward force, and thus, the chucking member 21 and the restricting member 22 move upward together.

In this embodiment, the positioning chamber 3 is U-shaped, the positioning chamber wall 31 is located at the lower portion of the positioning chamber 3, the retainer 21 is positioned by the positioning chamber wall 31, the engaging groove 201, and the limiting member 22, the limiting member 22 gives a downward force to the retainer 21, the positioning chamber wall 31 gives an upward and inward force to the retainer 21, and the engaging groove 201 gives an outward force to the retainer 21. The clamping piece 21 and the limiting piece 22 can move up and down in the positioning cavity 3 under the action of magnetic force and elastic force, so that the fixing and unlocking of the impeller assembly 10 and the input shaft 20 are realized.

In this embodiment, the locking groove 201 is formed by arranging a constriction on the output shaft 20, that is, the locking groove 201 is an annular structure coaxially arranged with the output shaft 20; therefore, when the clamping piece 21 and the clamping groove 201 are clamped and installed, the positioning is not needed in the circumferential direction, and the improvement of the simplicity of installation is facilitated.

Referring to fig. 16-17, a second structure of the washing machine for disassembling the pulsator assembly using the above method is mainly different from the first structure in that: the upper end of the output shaft 20 is located in the receiving cavity 220, so that no through hole may be opened at the top of the receiving cavity 220.

Specifically, the limiting member 22 includes a receiving cavity 220 for receiving the clamping member 21, the clamping member 21 is located in the receiving cavity 220 after the clamping structure 2 is clamped in the clamping groove 201, the upper end of the output shaft 20 extends into the receiving cavity 220, the receiving cavity 220 and the output shaft 20 are preferably coaxially arranged, and the inner side of the clamping member 21 is in contact with the bottom of the clamping groove 201. The limiting piece 22 is provided with a containing cavity 220, and the containing cavity 220 is sleeved on the outer side of the output shaft 20, so that the limiting piece 22 can only move up and down; when the limiting piece 22 moves up and down, the clamping piece 21 can be driven to move synchronously, and the clamping piece 21 can move radially, so that the clamping piece 21 is clamped with and separated from the clamping groove 201. The limiting piece 22 further comprises a first limiting edge 223 extending upwards along the upper end of the accommodating cavity 220, the first limiting edge 223 is arranged coaxially with the output shaft 20, the first limiting edge 223 is sleeved on the outer side of the output shaft 20, and the lower end of the elastic piece 23 is sleeved on the outer side of the first extending edge 223; by arranging the first limiting edge 223, on one hand, the limiting member 22 can be ensured to move up and down stably on the output shaft 20, and the stability of the movement of the limiting member 22 is ensured; on the other hand, the cooperation of the elastic member 23 and the first limiting edge 223 is facilitated, and the elastic force is better transmitted to the limiting member 22.

The foregoing is directed to preferred embodiments of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow. However, any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention are within the protection scope of the technical solution of the present invention.