CN111663283B - Disassembly method of washing machine pulsator assembly and washing machine - Google Patents

Abstract

The invention provides a washing machine pulsator assembly disassembly method and washing machine, the pulsator assembly is engaged and fixed with the output shaft, and the pulsator assembly is provided with an engaging structure for the axial engagement and positioning of the pulsator assembly , at least one slot matching the engaging structure is opened on the output shaft; the dismounting method is to use the magnetic force generated between the dismounting tool with a magnet and the engaging structure, so that the engaging structure Disengage from the card slot. When it is necessary to disassemble the pulsator assembly, it is only necessary to bring the disassembly tool close to the engaging structure. Due to the penetrability of the magnetic force, it is possible to apply force to the engaging structure without disassembling any part of the pulsator assembly. The detachment of the clamping and fixing is realized, so that the structural setting of the clamping structure is simple, and the dismounting operation is simple, labor-saving and convenient. After the removal tool is removed after the pulsator assembly is disassembled, the magnetic force is cancelled, so that the engaging structure is reset, and then the pulsator assembly is installed in place.

Description

Disassembly method of washing machine pulsator assembly and washing machine

technical field

The invention belongs to the technical field of washing machines, and in particular relates to a method for disassembling a wave wheel assembly of a washing machine and a washing machine.

Background technique

After the existing washing machine is used for a certain period of time, some dirt and bacteria will usually be left on the lower surface of the pulsator, the invisible positions on the walls of the inner tub and the outer tub, which is not easy to clean. If it is not cleaned for a long time, it may even cause cross-infection, skin diseases and other diseases. For the cleaning of above-mentioned each parts at present, the most reliable way is to clean after each part is disassembled. However, because the wave wheel of the existing washing machine and the output shaft of the driving part are mostly fixedly connected by bolts, the disassembly and installation of the wave wheel are troublesome, which is not conducive to the cleaning of the wave wheel; and the screws and wave wheels soaked in water for a long time Wheel-plastic parts are combined and bonded, and there are often problems that cannot be removed. There are also wave wheels of some washing machines that are detachably connected to the output shaft, but the detachable structure is too complicated, and there is still the problem of inconvenient disassembly.

Contents of the invention

Aiming at the above problems in the prior art, the present invention provides a method for disassembling the pulsator assembly of a washing machine, so as to solve the problem of inconvenient disassembly of the pulsator in the existing washing machine and realize quick disassembly of the pulsator of the washing machine.

In order to achieve the above-mentioned technical purpose, the present invention adopts the following technical solutions to realize:

A method for dismounting a washing machine pulsator assembly, the pulsator assembly is engaged and fixed with an output shaft, and an engaging structure for the axial engagement and positioning of the pulsator assembly is provided on the pulsator assembly. The output shaft is provided with at least one slot matching the engaging structure; the dismounting method is to use the magnetic force generated between the dismounting tool with a magnet and the engaging structure to disengage the engaging structure from the engaging slot .

Further, the disassembly method has the following steps: A. Bring the disassembly tool close to the engaging structure;

B. A magnetic force of mutual attraction is generated between the removal tool and the engaging structure, so that the engaging structure is disengaged from the engaging groove;

C. Move the pulsator assembly toward the clothes inlet and disassemble it.

Further, there is also a step A0 between the steps A, which is to extend the removal tool from the laundry inlet of the washing machine into the inner tub and get close to the pulsator assembly.

Further, there is also a step B0 before step B, in the process of the removal tool approaching the engaging structure, when the distance between the removing tool and the engaging structure is equal to or less than the magnetic induction range between the two, the A magnetic force of mutual attraction is generated between the removal tool and the engaging structure, so that the removal tool and the engaging structure have a tendency to move closer to each other.

Further, in step B, the removal tool reaches the upper end of the pulsator assembly under the action of magnetic force, and the engaging structure moves toward the direction of the removal tool under the action of magnetic force, so that the engaging structure and the slot The lock between them is released.

Further, the engaging structure includes an elastic member for providing a driving force to realize the engagement between the engaging structure and the slot; after the removal tool reaches the upper end of the pulsator assembly, the removal tool and the engaging The magnetic force generated between the structures is greater than the driving force provided by the elastic member.

Further, the engaging structure includes a clamping part that matches and engages with the clamping slot, and a limiting part that locks the clamping part in an engaged state, and the clamping part can be diametrically opposed to the limiting part. to move.

Further, the restricting member and/or the clamping member is made of a metal material that can be attracted by a magnet.

Further, the removal tool includes a magnet, a magnet fixing part for fixing the magnet, and a handle part located on the upper part of the magnet fixing part. ribs.

Further, an annular handle is provided on the upper end of the handle.

Further, the clamping member is spherical.

Based on the above method for disassembling the pulsator assembly of the washing machine, the present invention also provides a washing machine with the disassembly method, so as to solve the problem of inconvenient disassembly of the pulsator existing in existing washing machines and realize quick disassembly of the pulsator of the washing machine.

A washing machine, using the above disassembly method to disassemble the pulsator assembly.

The method for disassembling the pulsator assembly of the washing machine provided by the present invention uses the magnetic force between the dismounting tool and the engaging structure to realize the detachment of the engaging structure from the slot; It only needs to be close to the locking structure. Due to the penetrability of the magnetic force, it is possible to apply force to the locking structure without disassembling any part of the pulsator assembly, and realize the disengagement of the locking structure, so that the structure of the locking structure The setting is simple, which makes the disassembly operation simple, labor-saving and convenient. After the removal tool is removed after the pulsator assembly is disassembled, the magnetic force is cancelled, so that the engaging structure is reset, and then the pulsator assembly is installed in place.

Other characteristics and advantages of the present invention will become clearer after reading the detailed description of the present invention in conjunction with the accompanying drawings.

Description of drawings

Fig. 1 is the flowchart of an embodiment of the dismounting method of washing machine pulsator assembly proposed by the present invention;

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

Fig. 3 is a schematic diagram of the enlarged structure of the cross-sectional view of A-A in Fig. 2;

Fig. 4 is a schematic diagram of an enlarged structure of the engaging structure in Fig. 3;

Fig. 5 is an enlarged schematic diagram of part of the structure after disassembly of the pulsator assembly in Fig. 3;

Fig. 6 is a schematic structural view of the output shaft in Fig. 3;

Fig. 7 is a schematic diagram of the enlarged structure of the second output shaft in Fig. 6;

Fig. 8 is a schematic diagram of the enlarged structure of the limiting part in Fig. 5;

Fig. 9 is a schematic diagram of an enlarged structure of the positioning cavity in Fig. 3;

Fig. 10 is a schematic structural view of the removal tool;

Fig. 11 is a schematic diagram of the front view of Fig. 10;

Fig. 12 is a schematic cross-sectional structure diagram of Fig. 11;

Fig. 13 is a second structural schematic view of the washing machine using the flowchart of Fig. 1;

Fig. 14 is a schematic diagram of an enlarged structure of the engaging structure in Fig. 13;

Fig. 15 is a schematic structural view of the output shaft in Fig. 13;

Fig. 16 is a schematic diagram of a third structure of the washing machine using the flowchart of Fig. 1;

FIG. 17 is an enlarged structural schematic diagram of the engaging structure in FIG. 16 .

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention.

In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "inner", "upper", "lower", "left", "right" etc. is based on the positional relationship 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 only used to describe the present invention and simplify the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance; features defined with "first" and "second" may express or One or more of these features are implicitly included. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

In the present invention, unless otherwise clearly specified and limited, terms such as "installation", "connection", "connection" and "fixation" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection , or integrated; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediary, and it can be the internal communication of two components or the interaction relationship between two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

Referring to Fig. 1-Fig. 17, an embodiment of the dismantling method of the pulsator assembly of the washing machine proposed by the present invention, for the convenience of explanation, refer to the first washing machine using the method 1 to dismantle the pulsator assembly, as shown in Fig. 2-Fig. 12 The washing machine includes an output shaft 20 connected to the drive motor, and a pulsator assembly 10 detachably connected to the output shaft 20. The pulsator assembly 10 can be engaged with the output shaft 20 as a whole to be fixed or disengaged. The pulsator assembly 10 has a pulsator The wheel 1 and the engagement structure 2 for axial positioning of the pulsator assembly 10 are provided with at least one engagement groove 201 matching the engagement structure 2 on the output shaft 20 .

The disassembly method of the pulsator assembly 10 is to use the magnetic force generated between the disassembly tool 30 with magnets and the engagement structure 2 to disengage the engagement structure 2 from the slot 201; through the magnetic force between the removal tool 30 and the engagement structure 2 , to realize the detachment of the engaging structure 2 from the card slot 201; when the pulsator assembly 10 needs to be disassembled, it is only necessary to bring the removal tool 30 close to the engaging structure 2. Due to the penetrability of the magnetic force, it can When any part of the wheel assembly 10 is disassembled, a magnetic force is applied to the engaging structure 2 to realize the detachment of the engaging and fixing 2, so that the structural setting of the engaging structure 2 is simple, and the dismounting operation is simple, labor-saving and convenient. After the pulsator assembly 10 is disassembled and the removal tool is removed, the magnetic force is cancelled, so that the engaging structure is reset, and then the pulsator assembly 10 is installed in place.

In this embodiment, disassembly of the engaging structure 2 requires a disassembly tool 30 , and the disassembly tool 30 has a magnet 301 , and the magnet 301 is a magnet or an electromagnet, preferably a magnet. When the pulsator assembly 10 needs to be disassembled, the removal tool 30 is placed above the engaging structure 2 of the pulsator assembly 10, or placed in the direction of movement in which the engaging structure 2 is disengaged, and the dismantling tool 30 is close to the engaging structure 2 Finally, an attractive magnetic force is generated between the dismounting tool 30 and the engaging structure 2, and the attracting engaging structure 2 moves toward the direction close to the dismounting tool 30, that is, moves upward, so that the engaging structure 2 is disengaged from the engaging groove 201, that is, The axial locking between the pulsator assembly 10 and the output shaft 20 is released; then the pulsator assembly 10 is moved upwards and disengaged from the output shaft 20 to realize the disassembly of the pulsator assembly 10; then the removal tool 30 is removed to make the snap-in structure 2 reset. After the pulsator assembly 10 is cleaned, the pulsator assembly 10 is installed on the output shaft 20 , and the engaging structure 2 is engaged with the engaging groove 201 .

For the dismounting method of pulsator assembly 10, have following steps:

A0. Extend the removal tool 30 from the laundry inlet of the washing machine into the inner tub and approach the pulsator assembly 10 .

A. Put the removal tool 30 close to the engaging structure 2 , and the engaging structure 2 is set at the center of the pulsator assembly 10 , that is, bring the removal tool 30 close to the center of the pulsator assembly 10 .

B. A magnetic force of mutual attraction is generated between the removal tool 30 and the engaging structure 2 , so that the engaging structure 2 is disengaged from the engaging groove 201 .

Specifically, when the removal tool 30 reaches the upper end of the pulsator assembly 10 under the action of magnetic force, the removal tool 30 cannot continue to move in a direction close to the engaging structure 2, and the engaging structure 2 moves toward the direction of the removal tool 30 under the action of magnetic force. direction movement, so that the lock between the engaging structure 2 and the slot 201 is released.

C. Move the pulsator assembly 30 toward the clothes inlet and disassemble it.

There is also a step B0 before step B. In the process of the removal tool 30 approaching the engaging structure 2, when the distance between the removing tool 30 and the engaging structure 2 is equal to or less than the magnetic induction range between the two, the removal tool 30 and the engaging structure 2 generate a magnetic force that attracts each other, so that the removal tool 30 and the engaging structure 2 have a tendency to move closer to each other.

Referring to Figure 4, the engaging structure 2 also includes an elastic member 23 that provides a driving force for it. After the engaging structure 2 is engaged and fixed with the slot 201, the elastic member 23 gives the engaging structure 2 a downward elastic force. When the tool 30 reaches the upper end of the pulsator assembly 10 , the magnetic force generated between the removal tool 30 and the engaging structure 2 is greater than the driving force provided by the elastic member 23 , so that the engaging structure 2 moves upward. After considering the gravity and frictional force, the magnetic attraction force given by the removal tool 30 to the engaging structure 2 is greater than the sum of the pushing force given by the elastic member 23 and the gravity of the engaging structure 2, which can make the engaging structure 2 move upwards. Overcome friction.

As shown in FIG. 4 , the engaging structure 2 includes a clamping member 21 matched and engaged with the clamping groove 201, and a restricting member 22 defining the clamping member 21. The clamping member 21 can move radially relative to the restricting member 22 to define The member 22 is provided with a first through hole 221 for the output shaft 20 to pass through. The restricting part 22 defines the position of the clamping part 21 in the axial direction, and the clamping part 21 can move radially relative to the restricting part 22 to realize the engagement and disengagement of the clamping part 21 and the slot 201; when disassembling the pulsator assembly 10 When the clamping member 21 moves away from the output shaft 20 , the clamping member 21 withdraws from the slot 201 , and the axial locking between the engaging structure 2 and the output shaft 20 is released.

The pulsator assembly 10 also includes a positioning chamber 3 for accommodating the clamping member 21 and the limiting member 22. The positioning chamber 3 has a positioning chamber wall 31 for limiting the radial displacement of the clamping member 21. The clamping member 21 is in contact with the positioning chamber wall 31. A second through hole 32 for the output shaft 20 to extend in 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 member 21 is limited and locked by the limiting member 22, the positioning cavity wall 31, and the clamping groove 201. The clamping component 21 contacts the groove bottom of the clamping groove 201 on the radially inner side and the positioning cavity wall 31 on the outer side. By setting the positioning cavity The wall 31 gradually extends outwards in the direction close to the open end of the positioning cavity 3, that is, the positioning cavity wall 31 extends upwards and outwards; The distance between them 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 dismounting tool 30 attracts the engaging structure 2 to move upward, so that the clamping part 21 and the limiting part 22 move upward, so that the clamping part 21 has a space to move outward in the radial direction; the clamping part 21 moves upwards, and when reaching the upper end of the clamping groove 201, due to the inclined setting of the positioning cavity wall 31, after the clamping member 21 moves upwards, the positioning cavity wall 31 no longer blocks the clamping component 21, so that the clamping component 21 moves toward Move outward to get out of the card slot 201; then just lift the pulsator assembly 10 upwards, and at this time the locking has been released.

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

At least one of the clamping part 21 and the restricting part 22 of the engaging structure 2 is made of a metal material that can be absorbed by the magnet 301 . When the restricting part 22 adopts magnetic metal material and the clamping part 21 is not used, the removal tool 30 gives the restricting part 22 an upward attractive force, and when the restricting part 22 moves upward, it drives the clamping part 21 to move upward together; After the member 21 moves upward, there is a radially movable space relative to the limiting member 22 ; to realize the engagement and disengagement of the clamping member 21 and the slot 201 .

When the clamping part 21 is made of magnetic metal material and the restricting part 22 is not used, the removal tool 30 attracts the clamping part 21 to move upwards, and drives the restricting part 22 to move upwards together, and then the clamping part 21 has a radially movable space , when the clamping member 21 reaches the upper end of the clamping groove 201, it moves radially outward, so that the clamping member 21 withdraws from the clamping groove 201, and the axial engagement between the clamping structure 2 and the output shaft 20 is released locking.

When both the clamping part 21 and the restricting part 22 are made of magnetic metal material, the removal tool 30 attracts the clamping part 21 and the restricting part 22 to move upwards, and the downward force given by the elastic part 23 to the restricting part 22, therefore, the clip The tightening member 21 and the restricting member 22 move upward together.

In this embodiment, the restricting member 22 defines the position of the clamping member 21 in the axial direction, and the clamping member 21 can move up and down in the axial direction along with the restricting member 22; Up and down movement, while the clamping member 21 also needs to have radial movement; therefore, it is preferable to set the limiting member 22 to adopt a metal material that can be absorbed by the magnet 301, and the clamping member 21 to adopt a material that is not absorbed by the magnet 301.

For the structural setting of the clamping part 21, many structural forms can be adopted, such as spherical, elliptical, and irregular shapes; Position the relative movement of the cavity wall 31 after contact; it is more preferable to set the clamping member 21 as a spherical shape, and there is no need for positioning when the clamping member 21 is installed, and because of the smoothness of movement when moving, engaging, and disengaging from the clamping groove.

As for the number of clamping parts 21 in the engaging structure 2, one or more can be provided; preferably, three clamping parts 21 are arranged in the accommodation cavity 220, and three clamping grooves 201 are provided on the circumferential direction of the output shaft 20; through The provision of three axially arranged clamping parts 21 is beneficial to increase the stability of the pulsator assembly 10 after being clamped and fixed.

In this embodiment, as shown in FIG. 8 , the limiting member 22 includes a housing chamber 220 for housing the clamping member 21, the clamping member 21 is located in the housing chamber 220, the output shaft 20 passes through the housing chamber 220, and the housing chamber 220 and The output shaft 20 is arranged coaxially; after the engaging structure 2 engages in the engaging groove 201 , the engaging groove 201 is partly or completely located in the accommodating cavity 220 , and the inner side of the clamping member 21 is in contact with the bottom of the engaging groove 201 . A first through hole 221 is defined in the center of the receiving cavity 220 . An opening 222 for the clamping member 21 to protrude is defined on the wall of the receiving cavity 220 . The diameter of the opening 222 is smaller than that of the clamping member 21 . By setting the limiter 22 to have an accommodating cavity 220, the accommodating cavity 220 is sleeved on the outside of the output shaft 20, so that the limiter 22 can only move up and down; when the limiter 22 moves up and down, it can drive the clamping member 21 to move synchronously, and The clamping member 21 can move radially, so as to realize the engagement and disengagement of the clamping member 21 and the slot 201 . The limiting member 22 also includes a first limiting edge 223 extending upward along the first through hole 221 , the first limiting edge 223 is sleeved on the outside of the output shaft 20 , and the lower end of the elastic member 23 is sleeved on the outside of the first extending 223 edge; By setting the first limit edge 223, on the one hand, it is beneficial to ensure that the limiter 22 can move up and down smoothly on the output shaft 20, ensuring the stability of the movement of the limiter 22; The fit along 223 better transmits the elastic force to the limiting member 22 .

4, the pulsator assembly 10 also includes an outer cover 4 fixedly arranged with the pulsator 1, the elastic member 23 is located between the outer cover 4 and the limiting member 22, the lower end of the elastic member 23 is in contact with the limiting member 22, and the upper end is in contact with the limiting member 22. The outer cover 4 contacts. The outer cover 4 covers the outside of the positioning cavity 3 to seal the positioning cavity 3 to prevent washing water from entering the positioning cavity 3; the outer cover 4 has a lower opening receiving portion, and the positioning cavity 3 is located in the receiving portion. A fourth extending edge 41 extending downward is provided on the outer cover 4 , and the upper end of the elastic member 23 is sleeved on the outside of the fourth extending edge 41 .

Referring to Fig. 5 and Fig. 9, for the structural setting 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 tapered surface; in order to realize the fixing of the positioning cavity 3, the positioning The cavity 3 is also provided with a positioning and fixing part 33 extending radially outward, and the positioning and fixing part 33 is fixedly connected with the pulsator 1, and a second positioning edge 34 extending downward is provided on the edge of the second through hole 32. Setting the second positioning edge 34 is beneficial to the installation and positioning of the positioning cavity 3 and the stability after fixing.

The pulsator assembly 10 also includes a connecting piece 5 that is sleeved on the outside of the output shaft 20, and a locking piece is provided between the connecting piece 5 and the output shaft 20 to prevent the relative rotation of the two, and the connecting piece 5 is located at the bottom of the pulsator assembly 10;

The output shaft 20 includes a first output shaft 202 and a second output shaft 203 that are coaxially fixed. The diameter of the first output shaft 202 is greater than the diameter of the second output shaft 203. The stepped hole 5 matching the second output shaft 203 ; the second positioning edge 34 is located in the stepped hole 5 .

For the structure of the removal tool 30, a separate magnet can be used, but for ease of operation, it is preferably provided that the removal tool 30 includes a magnet 301, a magnet fixing part 302 for fixing the magnet, and a handle 303 positioned at the top of the magnet fixing part 302 , the handle portion 303 has a plurality of handle ribs protruding outwards and circumferentially. By setting the removal tool with a handle 303, it is convenient to take the removal tool. After the removal tool 30 is placed on the outer cover 4, there is a greater mutual attraction between the removal tool 30 and the limiter 22 of the engaging structure 2 , after the pulsator assembly 10 is disassembled, it is necessary to overcome the magnetic attraction force between the disassembly tool 30 and the limiter 22 to take the disassembly tool 30 away. Therefore, a handle 303 is provided to facilitate giving the disassembly tool 30 a greater force by hand . An annular handle 304 is disposed on the upper end of the handle portion 303 , and the handle 304 is provided to facilitate the removal of the removal tool 30 .

Referring to Figure 13-Figure 15, it is the second structure of the washing machine that uses the above method to disassemble the pulsator assembly. The main difference from the first structure is that the specific structure of the engaging structure is different, and the others can be the same as the first. Structure.

The washing machine includes an output shaft 20 connected to the drive motor, and a pulsator assembly 10 detachably connected to the output shaft 20. The pulsator assembly 10 can be engaged with the output shaft 20 as a whole or disengaged. The pulsator assembly 10 has a pulsator 1. As well as the engagement structure 2 for axial positioning of the pulsator assembly 10 , at least one engagement groove 201 matching the engagement structure 2 is provided on the output shaft 20 .

The disassembly method of the pulsator assembly 10 is to use the magnetic force generated between the disassembly tool 30 with magnets and the engagement structure 2 to disengage the engagement structure 2 from the slot 201; through the magnetic force between the removal tool 30 and the engagement structure 2 , to realize the detachment of the engaging structure 2 from the card slot 201; when the pulsator assembly 10 needs to be disassembled, it is only necessary to bring the removal tool 30 close to the engaging structure 2. Due to the penetrability of the magnetic force, it can When any part of the wheel assembly 10 is disassembled, a magnetic force is applied to the engaging structure 2 to realize the detachment of the engaging and fixing 2, so that the structural setting of the engaging structure 2 is simple, and the dismounting operation is simple, labor-saving and convenient. After the pulsator assembly 10 is disassembled and the removal tool is removed, the magnetic force is cancelled, so that the engaging structure is reset, and then the pulsator assembly 10 is installed in place.

In this embodiment, disassembly of the engaging structure 2 requires a disassembly tool 30 , and the disassembly tool 30 has a magnet 301 , and the magnet 301 is a magnet or an electromagnet, preferably a magnet. When the pulsator assembly 10 needs to be disassembled, the removal tool 30 is placed above the engaging structure 2 of the pulsator assembly 10, or placed in the direction of movement in which the engaging structure 2 is disengaged, and the dismantling tool 30 is close to the engaging structure 2 Finally, an attractive magnetic force is generated between the dismounting tool 30 and the engaging structure 2, and the attracting engaging structure 2 moves toward the direction close to the dismounting tool 30, that is, moves upward, so that the engaging structure 2 is disengaged from the engaging groove 201, that is, The axial locking between the pulsator assembly 10 and the output shaft 20 is released; then the pulsator assembly 10 is moved upwards and disengaged from the output shaft 20 to realize the disassembly of the pulsator assembly 10; then the removal tool 30 is removed to make the snap-in structure 2 reset. After the pulsator assembly 10 is cleaned, the pulsator assembly 10 is installed on the output shaft 20 , and the engaging structure 2 is engaged with the engaging groove 201 .

Referring to Fig. 2, for the dismounting method of the pulsator assembly 10, the steps are as follows:

A0. Extend the removal tool 30 from the laundry inlet of the washing machine into the inner tub and approach the pulsator assembly 10 .

A. Put the removal tool 30 close to the engaging structure 2 , and the engaging structure 2 is set at the center of the pulsator assembly 10 , that is, bring the removal tool 30 close to the center of the pulsator assembly 10 .

B. A magnetic force of mutual attraction is generated between the removal tool 30 and the engaging structure 2 , so that the engaging structure 2 is disengaged from the engaging groove 201 .

Specifically, when the removal tool 30 reaches the upper end of the pulsator assembly 10 under the action of magnetic force, the removal tool 30 cannot continue to move in a direction close to the engaging structure 2, and the engaging structure 2 moves toward the direction of the removal tool 30 under the action of magnetic force. direction movement, so that the lock between the engaging structure 2 and the slot 201 is released.

C. Move the pulsator assembly 30 toward the clothes inlet and disassemble it.

There is also a step B0 before step B. In the process of the removal tool 30 approaching the engaging structure 2, when the distance between the removing tool 30 and the engaging structure 2 is equal to or less than the magnetic induction range between the two, the removal tool 30 and the engaging structure 2 generate a magnetic force that attracts each other, so that the removal 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 clamping part 21 that matches and engages with the slot 201, and a restricting part 22 that defines the clamping part 21, wherein the restricting part 22 has a flat body 220, and the flat body 220 A first through hole 221 and a first limiting edge 223 extending upward along the first through hole 221 are opened on the top, and the clamping member 21 is located below the flat body 220; The highest position in the axial direction is limited, that is, the clamping member 21 is in close contact with the restricting member 22 , or the clamping member 21 is located a certain distance below the restricting member 22 .

When the limiter 22 is made of magnetic metal material and the clamping member 21 is not used, that is, the limiter 22 cannot be brought together with the clamping member 21 when it moves upwards, but the limiter 22 limits the reach of the clamping member 21 in the axial direction. position, the clamping member 21 can move radially or axially relative to the restricting member 22 . The limiter 22 limits the uppermost position of the clamping member 21 in the axial direction. After the limiter 22 moves upward, the clamping member 21 can move radially relative to the limiter 22 to realize the engagement and disengagement of the clamping member 21 and the slot 201 ; When the pulsator assembly 10 is disassembled, when the clamping member 21 moves away from the output shaft 20, the clamping member 21 is withdrawn from the slot 201, and the axial force between the engaging structure 2 and the output shaft 20 is released. Snap lock.

When the clamping part 21 adopts magnetic metal material and the limiting part 22 is not used, the removal tool 30 attracts the clamping part 21 to move upwards. At this time, the clamping part 21 pushes the limiting part 22 to move upward together, and then the clamping part 21 has radially movable space, when the clamping member 21 reaches the upper end of the clamping groove 201, it moves radially outward, so that the clamping member 21 withdraws from the clamping groove 201, and the engaging structure 2 and the output shaft 20 are released. Axial snap-lock between.

When both the clamping part 21 and the restricting part 22 are made of magnetic metal materials, the removal tool 30 attracts the clamping part 21 and the restricting part 22 to move upwards, which is conducive to the downward force given by the elastic part 23 to the restricting part 22, thus, clamping The part 21 and the restricting part 22 move upward together.

In this embodiment, the positioning cavity 3 is U-shaped, the positioning cavity wall 31 is located at the lower part of the positioning cavity 3, the clamping member 21 is positioned by the positioning cavity wall 31, the locking groove 201, and the limiting member 22, and the limiting member 22 gives the clamping component 21 downward force, the positioning cavity wall 31 gives upward and inward force to the clamping member 21 , and the locking groove 201 gives outward force to the clamping member 21 . The clamping part 21 and the restricting part 22 can move up and down in the positioning cavity 3 under the action of magnetic force and elastic force, so as to realize the fixing and unlocking of the pulsator assembly 10 and the output shaft 20 .

In this embodiment, the clamping groove 201 is formed by setting a constriction on the output shaft 20, that is, the clamping groove 201 is an annular structure coaxially arranged with the output shaft 20; in this way, the clamping member 21 and the clamping groove 201 are engaged and installed There is no need for positioning in the circumferential direction, which is conducive to improving the simplicity of installation.

Referring to Fig. 16-Fig. 17, the second structure of the washing machine using the above method to disassemble the pulsator assembly, and the main difference from the first structure is that the upper end of the output shaft 20 is located in the accommodation chamber 220, so in the accommodation chamber 220 There may be no through holes at the top.

Specifically, the limiter 22 includes an accommodation chamber 220 for accommodating the clamping member 21. After the engaging structure 2 is engaged in the slot 201, the clamping member 21 is located in the accommodation chamber 220, and the upper end of the output shaft 20 extends into the accommodation. In the cavity 220 , preferably, the accommodating cavity 220 and the output shaft 20 are arranged coaxially, and the inner side of the clamping member 21 is in contact with the bottom of the clamping groove 201 . By setting the limiter 22 to have an accommodating cavity 220, the accommodating cavity 220 is sleeved on the outside of the output shaft 20, so that the limiter 22 can only move up and down; when the limiter 22 moves up and down, it can drive the clamping member 21 to move synchronously, and The clamping member 21 can move radially, so as to realize the engagement and disengagement of the clamping member 21 and the slot 201 . The limiting member 22 also includes a first limiting edge 223 extending upward 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 outside of the output shaft 20. The elastic force The lower end of the member 23 is set on the outside of the first extension 223; by setting the first limit edge 223, on the one hand, it is beneficial to ensure that the limiting member 22 can move up and down smoothly on the output shaft 20, and ensure the stability of the limiting member 22. ; On the other hand, it is beneficial to the cooperation between the elastic member 23 and the first limiting edge 223, and better transmit the elastic force to the limiting member 22.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention to other forms. Any skilled person who is familiar with this profession may use the technical content disclosed above to change or modify the equivalent of equivalent changes. Example. However, any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still belong to the protection scope of the technical solution of the present invention.

Claims (9)

1. A method for dismounting the pulsator assembly of a washing machine, the pulsator assembly is engaged and fixed with the output shaft, characterized in that, the pulsator assembly is provided with a card for the axial engagement and positioning of the pulsator assembly An engaging structure, at least one slot matching the engaging structure is opened on the output shaft; the dismounting method is to use the magnetic force generated between the dismounting tool with a magnet and the engaging structure, so that the engaging structure The joint structure is separated from the card slot; The card slot is extended in the axial direction; The engaging structure includes a clamping part that matches and engages with the slot, and a restricting part that defines the clamping part; the clamping part can move radially relative to the restricting part; Also includes a removal tool for removing the engaging structure; When the pulsator assembly is disassembled, the dismounting tool attracts the engaging structure to move upward; the clamping member moves upward to reach the upper end of the clamping groove, so that the clamping member has a radially movable space, releasing the axial engagement and locking between the engagement structure and the output shaft. 2. The dismounting method according to claim 1, characterized in that, the dismounting method has the following steps: A. Bring the removal tool close to the engaging structure; B. A magnetic force of mutual attraction is generated between the removal tool and the engaging structure, so that the engaging structure is disengaged from the engaging groove; C. Move the pulsator assembly towards the clothes inlet and disassemble it. 3. The dismounting method according to claim 2, characterized in that there is also a step B0 before step B, in the process of the removal tool approaching the engaging structure, when the distance between the removing tool and the engaging structure is equal to or less than the magnetic induction range between the two, a magnetic force of mutual attraction is generated between the removal tool and the engaging structure, so that the removal tool and the engaging structure tend to move closer to each other. 4. The disassembly method according to claim 2, characterized in that, in step B, the disassembly tool reaches the upper end of the pulsator assembly under the action of magnetic force, and the engaging structure moves downward under the action of magnetic force The dismounting tool is moved in a direction so that the lock between the engaging structure and the slot is released. 5. The disassembly method according to claim 2, characterized in that there is a step A0 between step A, wherein the disassembly tool is inserted into the inner tub from the laundry inlet of the washing machine and close to the pulsator assembly. 6. The dismounting method according to any one of claims 1 to 5, characterized in that, the engaging structure includes an elastic member for providing a driving force to realize the engaging state between the engaging structure and the slot; the dismounting After the tool reaches the upper end of the pulsator assembly, the magnetic force generated between the removal tool and the engaging structure is greater than the driving force provided by the elastic member. 7. The dismounting method according to any one of claims 1 to 5, wherein the limiting member and/or the clamping member is made of a metal material that can be absorbed by a magnet. 8. The dismounting method according to any one of claims 1 to 5, wherein the dismounting tool comprises a magnet, a magnet fixing part for fixing the magnet, and a handle part located on the upper part of the magnet fixing part , the handle portion has a plurality of handle ribs extending circumferentially and outwardly. 9. A washing machine, characterized in that the pulsator assembly is disassembled by using the disassembly method according to any one of claims 1 to 8.

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