CN111663283A - Disassembly method of washing machine impeller assembly and washing machine - Google Patents

Abstract

The invention provides a method for disassembling a pulsator assembly of a washing machine and a washing machine. The pulsator assembly is engaged and fixed with an output shaft, and the pulsator assembly is provided with an engaging structure for axially engaging and positioning the pulsator assembly. , the output shaft is provided with at least one card slot matching the engaging structure; the disassembly method is to use the magnetic force generated between a disassembly tool with a magnet and the engaging structure to make the engaging structure disengage from the card slot. When the pulsator assembly needs to be disassembled, it is only necessary to place 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 disengagement of the engagement and fixation is realized, the structural arrangement of the engagement structure is simple, the disassembly operation is simple, and labor is saved and convenient. After the pulsator assembly is disassembled, the disassembly tool is removed, the magnetic force is cancelled, the engaging structure is reset, and the pulsator assembly is installed in place.

Description

Disassembly method of washing machine impeller 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 washing machine pulsator assembly and a washing machine.

Background technique

After being used for a certain period of time, the existing washing machines usually leave some dirt and bacteria on the lower surface of the pulsator, and invisible positions on the walls of the inner tub and the outer tub, which are not easy to clean. Not cleaning for a long time may even cause cross-infection, skin diseases and other diseases. At present, the most reliable way to clean the above components is to disassemble each component and then clean it. However, since the pulsator of the existing washing machine and the output shaft of the driving component are mostly fixedly connected by bolts, the disassembly and installation of the pulsator is troublesome, which is not conducive to the cleaning of the pulsator; Wheel plastic parts are combined and bonded, and there are often problems that cannot be removed. There are also some washing machines where the pulsator is detachably connected to the output shaft, but the detachable structure is too complicated, and there is still the problem of inconvenient detachment.

SUMMARY OF THE INVENTION

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

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

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

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

B. A magnetic force that attracts each other is generated between the dismantling tool and the engaging structure, so that the engaging structure is separated from the card slot;

C. Move the pulsator assembly toward the clothes input port, and disassemble it.

Further, there is a step A0 between the steps A, and the disassembly tool is inserted into the inner tub from the clothes input port of the washing machine, and is close to the pulsator assembly.

Further, before step B, there is also a step B0, in the process of the disassembly tool approaching the engaging structure, when the distance between the dismounting tool and the engaging structure is equal to or less than the magnetic induction range between the two, the A mutually attractive magnetic force is generated between the dismounting tool and the engaging structure, so that the dismounting tool and the engaging structure have a moving tendency to approach each other.

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

Further, the engaging structure includes an elastic member for providing a driving force to realize the engaging state between the engaging structure and the engaging groove; after the disassembling tool reaches the upper end of the pulsator assembly, the disassembling tool is engaged with the engaging state. The magnetic force generated between the structures is greater than the pushing force provided by the elastic members.

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

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

Further, the dismantling tool includes a magnet, a magnet fixing part for fixing the magnet, and a hand-holding part located on the upper part of the magnet fixing part, the hand-holding part has a plurality of hand-holding parts arranged circumferentially and extending outwards tendons.

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

Further, the clamping member is spherical.

Based on the above-mentioned disassembly method of the washing machine impeller assembly, the present invention also provides a washing machine with the disassembly method, so as to solve the problem of inconvenient disassembly of the impeller in the existing washing machine, and realize the rapid disassembly of the washing machine impeller.

A washing machine adopts the above-mentioned disassembly method to disassemble a pulsator assembly.

The disassembly method of the washing machine pulsator assembly provided by the present invention realizes the detachment of the engaging structure and the clamping groove through the magnetic force between the disassembling tool and the engaging structure; when the impeller assembly needs to be disassembled, only the disassembling tool needs to be removed It is enough to be 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 to realize the detachment of the engaging and fixing, so that the structure of the engaging structure can be realized. The setting is simple, which makes the disassembly operation simple and labor-saving and convenient. After the dismantling tool is removed after the pulsator assembly is disassembled, the magnetic force is withdrawn, so that the engaging structure is reset, and then the pulsator assembly is installed in place.

Other features and advantages of the present invention will become more apparent after reading the detailed description of the present invention in conjunction with the accompanying drawings.

Description of drawings

1 is a flowchart of an embodiment of a method for disassembling a washing machine pulsator assembly proposed by the present invention;

Fig. 2 is a kind of structural representation of a washing machine using the method of Fig. 1 to disassemble the pulsator assembly;

Fig. 3 is A-A sectional enlarged structural schematic diagram in Fig. 2;

FIG. 4 is an enlarged schematic view of the engaging structure in FIG. 3;

5 is an enlarged schematic view of a part of the structure of the pulsator assembly in FIG. 3 after disassembly;

Fig. 6 is the structural representation of the output shaft in Fig. 3;

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

Fig. 8 is the enlarged structural schematic diagram of the limiting member in Fig. 5;

Fig. 9 is the enlarged structural schematic diagram of the positioning cavity in Fig. 3;

Figure 10 is a schematic structural diagram of a disassembly tool;

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

Fig. 12 is the sectional structure schematic diagram of Fig. 11;

Fig. 13 is the second structure schematic diagram of the washing machine adopting the flow chart of Fig. 1;

FIG. 14 is an enlarged schematic view of the engaging structure in FIG. 13;

Figure 15 is a schematic structural diagram of the output shaft in Figure 13;

Fig. 16 is the third structural schematic diagram of the washing machine using the flow chart of Fig. 1;

FIG. 17 is an enlarged schematic view 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 clearer, the technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying 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 "inside", "upper", "lower", "left", "right", etc. is based on the positional relationship shown in the accompanying drawings, with 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 terms are only used to facilitate the description of the present invention and to simplify the description, rather than indicating or implying that the referred device or element must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the invention. In addition, the terms "first", "second" and "third" are used for descriptive purposes only, and should not be construed as indicating or implying relative importance; features defined with "first" and "second" may expressly or One or more of these features are implicitly included. In the description of the present invention, "plurality" means two or more, unless otherwise expressly and specifically defined.

In the present invention, unless otherwise expressly specified and limited, the terms "installed", "connected", "connected", "fixed" and other terms should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection , or integrated; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of the two elements or the interaction relationship between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

Referring to FIG. 1, an embodiment of the method for disassembling the pulsator assembly of a washing machine proposed by the present invention is described. For the convenience of description, refer to the first washing machine using the method of 1 to disassemble the pulsator assembly. Referring to FIGS. 2-12, the washing machine includes The output shaft 20 connected with the drive motor and the pulsator assembly 10 detachably connected with the output shaft 20, the pulsator assembly 10 can be integrally snapped and fixed with the output shaft 20 or separated, and the pulsator assembly 10 has a pulsator 1, As well as the engaging structure 2 used for the axial positioning of the pulsator assembly 10 , at least one engaging groove 201 matching the engaging structure 2 is formed 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 a magnet and the engaging structure 2 to separate the engaging structure 2 from the engaging slot 201 ; , to realize the detachment of the engaging structure 2 and the engaging slot 201; when the pulsator assembly 10 needs to be disassembled, the disassembly tool 30 only needs to be close to the engaging structure 2. Due to the penetrability of the magnetic force, it can be When any part of the wheel assembly 10 is disassembled, a magnetic force can be applied to the engaging structure 2 to realize the disengagement of the engaging and fixing structure 2 , so that the structural arrangement of the engaging structure 2 is simple, and the disassembly operation is simple and labor-saving and convenient. After the removal tool is removed after the pulsator assembly 10 is disassembled, the magnetic force is cancelled, so that the engaging structure is reset, and the pulsator assembly 10 is installed in place.

In this embodiment, a disassembly tool 30 is required to disassemble the engaging structure 2 . 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 disassembly tool 30 is placed above the engaging structure 2 of the pulsator assembly 10 , or placed in the moving direction of the disengagement of the engaging structure 2 , and the dismantling tool 30 is close to the engaging structure 2 Then, an attractive magnetic force is generated between the dismantling tool 30 and the engaging structure 2, which attracts the engaging structure 2 to move toward the direction close to the dismantling tool 30, that is, moves upward, so that the engaging structure 2 is separated from the engaging slot 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 separated from the output shaft 20 to realize the disassembly of the pulsator assembly 10; then the disassembly tool 30 is removed to make the engaging 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 disassembly method of the pulsator assembly 10, there are the following steps:

A0. Extend the dismantling tool 30 from the clothes input port of the washing machine into the inner tub and approach the pulsator assembly 10 .

A. Move the dismantling tool 30 close to the engaging structure 2 , and the engaging structure 2 is arranged at the center of the pulsator assembly 10 , that is, the dismantling tool 30 is close to the center of the pulsator assembly 10 .

B. Mutual attraction magnetic force is generated between the dismantling tool 30 and the engaging structure 2 , so that the engaging structure 2 is separated from the engaging slot 201 .

Specifically, when the disassembly tool 30 reaches the upper end of the pulsator assembly 10 under the action of the magnetic force, the disassembly tool 30 cannot continue to move in the direction of approaching the engaging structure 2, and the engaging structure 2 moves toward the disassembly tool 30 under the action of the magnetic force. The direction moves, so that the locking between the engaging structure 2 and the card slot 201 is released.

C. Move the pulsator assembly 30 toward the clothes input port, and disassemble it.

There is also a step B0 before step B. During the process of the disassembly tool 30 approaching the engaging structure 2, when the distance between the dismounting tool 30 and the engaging structure 2 is equal to or less than the magnetic induction range between the two, the disassembling tool 30 is removed. Mutual attraction magnetic force is generated between the 30 and the engaging structure 2 , so that the dismantling tool 30 and the engaging structure 2 have a tendency to move closer to each other.

Referring to FIG. 4 , the engaging structure 2 further includes an elastic member 23 that provides a driving force for it. After the engaging structure 2 is engaged with the engaging slot 201 and fixed, 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 pushing force provided by the elastic member 23, so that the engaging structure 2 moves upward. After considering gravity and frictional force, the magnetic attractive force imparted by the dismantling 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, so that the engaging structure 2 can be moved upward. Of course, it is necessary to Overcome friction.

Referring to FIG. 4 , the engaging structure 2 includes a clamping member 21 matching and engaging with the clamping groove 201 , and a limiting member 22 defining the clamping member 21 . The clamping member 21 can move radially relative to the limiting member 22 to limit the The member 22 is provided with a first through hole 221 for the output shaft 20 to pass through. The limiting member 22 limits the position of the clamping member 21 in the axial direction, and the clamping member 21 can move radially relative to the limiting member 22 to realize the engagement and disengagement of the clamping member 21 and the clamping groove 201; when disassembling the pulsator assembly 10 , when the clamping member 21 moves away from the output shaft 20 , the clamping member 21 is withdrawn from the clamping slot 201 , and the axial locking between the clamping structure 2 and the output shaft 20 is released.

The pulsator assembly 10 further includes a positioning cavity 3 that accommodates the clamping member 21 and the limiting member 22 , the positioning cavity 3 has a positioning cavity wall 31 for limiting the radial displacement of the clamping member 21 , and the clamping member 21 is in contact with the positioning cavity wall 31 The bottom of the positioning cavity 3 is provided with a second through hole 32 for the output shaft 20 to extend into, 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 slot 201. The clamping member 21 contacts the groove bottom of the clamping slot 201 radially on the inner side and contacts the positioning cavity wall 31 at the outer side. By setting the positioning cavity The wall 31 gradually extends outward in the direction close to the open end of the positioning cavity 3, that is, the positioning cavity wall 31 extends upward and outward; 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 disassembly tool 30 attracts the engaging structure 2 to move upward, so that the clamping member 21 and the limiting member 22 move upward, so that the clamping member 21 has a space for moving outward in the radial direction; the clamping member 21 moves upward. When reaching the upper end of the card slot 201, due to the inclined setting of the positioning cavity wall 31, after the clamping member 21 moves upward, the positioning cavity wall 31 no longer blocks the clamping member 21, so that the clamping member 21 moves toward the upper end of the clamping member 21. Move outwards and disengage from the card slot 201; then lift the pulsator assembly 10 upwards, and at this time the engaging lock has been released.

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

At least one of the clamping member 21 and the limiting member 22 of the clamping structure 2 is a metal material that can be adsorbed by the magnet 301; When the restricting member 22 is made of magnetic metal material and the clamping member 21 is not, the dismantling tool 30 gives the restricting member 22 an upward attractive force, and when the restricting member 22 moves upward, the clamping member 21 is driven to move upward together; After the member 21 moves upward, there is a space that can move radially relative to the limiting member 22;

When the clamping member 21 is made of magnetic metal material and the limiting member 22 is not, the dismantling tool 30 attracts the clamping member 21 to move upward, and drives the limiting member 22 to move upward together, and then the clamping member 21 has a space for radial movement. , when the clamping member 21 reaches the upper end of the clamping slot 201, it moves radially outward, so that the clamping member 21 is withdrawn from the clamping slot 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 materials, the dismantling tool 30 attracts the clamping part 21 and the restricting part 22 to move upward. Since the elastic force 23 also gives the restricting part 22 a downward force, the clamping part 22 is forced downward. The tightening member 21 and the restricting member 22 move upward together.

In this embodiment, the limiting member 22 defines the position of the clamping member 21 in the axial direction, and the clamping member 21 can move up and down with the limiting member 22 in the axial direction; the limiting member 22 only has an axial Therefore, it is preferable to set the restricting member 22 to be a metal material that can be adsorbed by the magnet 301 , and the clamping member 21 to be a material that is not adsorbed by the magnet 301 .

For the structural setting of the clamping member 21, a multi-structured form can be adopted, such as spherical, elliptical and irregular shapes; preferably, the contact portion between the clamping member 21 and the positioning cavity wall 31 adopts an arc structure, which is conducive to the connection between the clamping member 21 and the positioning cavity wall 31. Positioning the relative movement of the cavity wall 31 after contact; more preferably, the clamping member 21 is spherical, no positioning is required when the clamping member 21 is installed, and the movement is smooth when moving, engaging, and disengaging from the clamping slot.

For the number of the clamping members 21 in the clamping structure 2, one or more can be provided; preferably, three clamping members 21 are provided in the accommodating cavity 220, and three clamping grooves 201 are opened in the circumferential direction of the output shaft 20; The provision of three axially disposed clamping members 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 an accommodating cavity 220 for accommodating the clamping member 21 , the clamping member 21 is located in the accommodating cavity 220 , the output shaft 20 passes through the accommodating cavity 220 , and the accommodating cavity 220 and The output shaft 20 is coaxially arranged; after the engaging structure 2 is engaged with the engaging slot 201 , part or all of the engaging slot 201 is located in the accommodating cavity 220 , and the inner side of the engaging piece 21 is in contact with the bottom of the engaging slot 201 . A first through hole 221 is opened in the center of the accommodating cavity 220 . The cavity wall of the accommodating cavity 220 is provided with an opening 222 for extending the clamping piece 21 . The diameter of the opening 222 is smaller than the diameter of the clamping piece 21 . By setting the limiting member 22 to have an accommodating cavity 220, the accommodating cavity 220 is sleeved on the outside of the output shaft 20, so that the limiting member 22 can only move up and down; when the limiting member 22 moves up and down, the clamping member 21 can be driven to move synchronously, and The clamping member 21 may have radial movement to realize the engagement and disengagement between the clamping member 21 and the clamping slot 201 . The limiting member 22 further 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, and to ensure the stability of the movement of the limiter 22; The fit of the edge 223 can better transmit the elastic force to the limiting member 22 .

Referring to FIG. 4 , the pulsator assembly 10 further 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. 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; 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 outer side of the fourth extending edge 41 .

5 and 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 fixation of the positioning cavity 3, the positioning The cavity 3 is also provided with a positioning and fixing portion 33 extending radially outward. The positioning and fixing portion 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. The provision of the second positioning edge 34 facilitates 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, a locking piece is provided between the connecting piece 5 and the output shaft 20 to prevent the two from rotating relative to each other, and the connecting piece 5 is located at the lower part of the pulsator assembly 10;

The output shaft 20 includes a first output shaft 202 and a second output shaft 203 that are coaxially and fixedly arranged. The diameter of the first output shaft 202 is larger than the diameter of the second output shaft 203 . The stepped hole 5 matched with the second output shaft 203 ; the second positioning edge 34 is located in the stepped hole 5 .

For the structure of the dismantling tool 30, a single magnet can be used, but for the convenience of operation, it is preferable to set the dismantling tool 30 to include a magnet 301, a magnet fixing part 302 for fixing the magnet, and a hand-held part 303 located on the upper part of the magnet fixing part 302. , the hand-holding portion 303 has a plurality of hand-holding ribs which are arranged circumferentially and protruding outward. By providing the disassembly tool with the handle portion 303, it is convenient to take the disassembly tool. After the disassembly tool 30 is placed on the outer cover 4, there is a greater mutual attraction between the disassembly tool 30 and the limiting member 22 of the engaging structure 2. , after the pulsator assembly 10 is disassembled, it is necessary to overcome the magnetic attraction between the disassembly tool 30 and the limiting member 22 to remove the disassembly tool 30, so the handle portion 303 is provided to facilitate the hand to give the disassembly tool 30 greater force . An annular handle 304 is provided on the upper end of the hand-held portion 303 , which facilitates the taking and placing of the dismantling tool 30 by providing the handle 304 .

13 to 15, it is the second structure of the washing machine using the above method to disassemble the pulsator assembly. The main difference from the first structure is that the specific structure at the engaging structure is different, and the other can be the same as the first one. Structure.

The washing machine includes an output shaft 20 connected with the drive motor, and a pulsator assembly 10 detachably connected with the output shaft 20. The pulsator assembly 10 can be integrally engaged with the output shaft 20, fixed or detached, and the pulsator assembly 10 has a pulsator. 1. As for the engaging structure 2 used for the axial positioning of the pulsator assembly 10 , at least one engaging slot 201 matching the engaging 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 a magnet and the engaging structure 2 to separate the engaging structure 2 from the engaging slot 201 ; , to realize the detachment of the engaging structure 2 and the engaging slot 201; when the pulsator assembly 10 needs to be disassembled, the disassembly tool 30 only needs to be close to the engaging structure 2. Due to the penetrability of the magnetic force, it can be When any part of the wheel assembly 10 is disassembled, a magnetic force can be applied to the engaging structure 2 to realize the disengagement of the engaging and fixing structure 2 , so that the structural arrangement of the engaging structure 2 is simple, and the disassembly operation is simple and labor-saving and convenient. After the removal tool is removed after the pulsator assembly 10 is disassembled, the magnetic force is cancelled, so that the engaging structure is reset, and the pulsator assembly 10 is installed in place.

In this embodiment, a disassembly tool 30 is required to disassemble the engaging structure 2 . 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 disassembly tool 30 is placed above the engaging structure 2 of the pulsator assembly 10 , or placed in the moving direction of the disengagement of the engaging structure 2 , and the dismantling tool 30 is close to the engaging structure 2 Then, an attractive magnetic force is generated between the dismantling tool 30 and the engaging structure 2, which attracts the engaging structure 2 to move toward the direction close to the dismantling tool 30, that is, moves upward, so that the engaging structure 2 is separated from the engaging slot 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 separated from the output shaft 20 to realize the disassembly of the pulsator assembly 10; then the disassembly tool 30 is removed to make the engaging 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 disassembly method of the pulsator assembly 10, there are the following steps:

A0. Extend the dismantling tool 30 from the clothes input port of the washing machine into the inner tub and approach the pulsator assembly 10 .

A. Move the dismantling tool 30 close to the engaging structure 2 , and the engaging structure 2 is arranged at the center of the pulsator assembly 10 , that is, the dismantling tool 30 is close to the center of the pulsator assembly 10 .

B. Mutual attraction magnetic force is generated between the dismantling tool 30 and the engaging structure 2 , so that the engaging structure 2 is separated from the engaging slot 201 .

Specifically, when the disassembly tool 30 reaches the upper end of the pulsator assembly 10 under the action of the magnetic force, the disassembly tool 30 cannot continue to move in the direction of approaching the engaging structure 2, and the engaging structure 2 moves toward the disassembly tool 30 under the action of the magnetic force. The direction moves, so that the locking between the engaging structure 2 and the card slot 201 is released.

C. Move the pulsator assembly 30 toward the clothes input port, and disassemble it.

There is also a step B0 before step B. During the process of the disassembly tool 30 approaching the engaging structure 2, when the distance between the dismounting tool 30 and the engaging structure 2 is equal to or less than the magnetic induction range between the two, the disassembling tool 30 is removed. Mutual attraction magnetic force is generated between the 30 and the engaging structure 2 , so that the dismantling 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 member 21 matched with the clamping slot 201 , and a limiting member 22 that defines the clamping member 21 , wherein the limiting member 22 has a flat-shaped body 220 . There is a first through hole 221 and a first limit edge 223 extending upward along the first through hole 221, and the clamping member 21 is located below the plate-shaped body 220; The highest position that can be reached in the axial direction is defined, that is, the clamping piece 21 is immediately adjacent to the contact limiting piece 22 , or the clamping piece 21 is located at a distance below the limiting piece 22 .

When the restricting member 22 is made of magnetic metal material and the clamping member 21 is not used, that is, the restricting member 22 cannot be moved with the clamping member 21 together, but the restricting member 22 limits the clamping member 21 in the axial direction. The clamping member 21 can move radially or axially relative to the limiting member 22 . The restricting member 22 restricts the clamping member 21 at the highest position in the axial direction. After the restricting member 22 moves upward, the clamping member 21 can move radially relative to the restricting member 22 to realize the engagement and disengagement of the clamping member 21 and the clamping slot 201 ; When disassembling the pulsator assembly 10, when the clamping member 21 moves in the direction away from the output shaft 20, the clamping member 21 is withdrawn from the clamping groove 201, and the axial direction between the clamping structure 2 and the output shaft 20 is released. Snap lock.

When the clamping member 21 is made of magnetic metal material and the restricting member 22 is not, the dismantling tool 30 attracts the clamping member 21 to move upward, at this time, the clamping member 21 pushes the restricting member 22 to move upward together, and then the clamping member 21 has There is a space for radial movement, and when the clamping member 21 reaches the upper end of the clamping slot 201, it moves radially outward, so that the clamping member 21 is withdrawn from the clamping slot 201, and the clamping 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 material, the dismantling tool 30 attracts the clamping part 21 and the restricting part 22 to move upwards, which is beneficial for the elastic part 23 to give the restricting part 22 a downward force. The member 21 and the limiting member 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 clamping groove 201, and the limiting member 22, and the limiting member 22 is given to the clamping member 21 downward force, the positioning cavity wall 31 gives the clamping piece 21 an upward and inward force, and the clamping slot 201 gives the clamping piece 21 an outward force. The clamping member 21 and the limiting member 22 can move up and down in the positioning cavity 3 under the action of magnetic force and elastic force to realize the fixing and unlocking of the pulsator assembly 10 and the output shaft 20 .

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

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

Specifically, the limiting member 22 includes an accommodating cavity 220 for accommodating the clamping member 21. After the clamping structure 2 is engaged with the clamping slot 201, the clamping member 21 is located in the accommodating cavity 220, and the upper end of the output shaft 20 extends into the accommodating cavity 220. In the cavity 220 , the accommodating cavity 220 and the output shaft 20 are preferably arranged coaxially, and the inner side of the clamping member 21 is in contact with the bottom of the clamping slot 201 . By setting the limiting member 22 to have an accommodating cavity 220, the accommodating cavity 220 is sleeved on the outside of the output shaft 20, so that the limiting member 22 can only move up and down; when the limiting member 22 moves up and down, the clamping member 21 can be driven to move synchronously, and The clamping member 21 may have radial movement to realize the engagement and disengagement between the clamping member 21 and the clamping 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 coaxially disposed with the output shaft 20, and the first limiting edge 223 is sleeved on the outside of the output shaft 20. The lower end of the member 23 is sleeved on the outer side of the first extension 223 edge; 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 to ensure the stability of the movement of the limiting member 22. On the other hand, it is beneficial to the cooperation between the elastic member 23 and the first limit edge 223, and better transmits the elastic force to the limiting member 22.

The above are only preferred embodiments of the present invention, and are not intended to limit the present invention in other forms. Any person skilled in the art may use the technical content disclosed above to make changes or modifications to 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 solutions of the present invention still belong to the protection scope of the technical solutions of the present invention.

Claims (10)

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.

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