CN111663285B - a washing machine - Google Patents

Abstract

The invention provides a washing machine, comprising an output shaft and a pulsator assembly detachably connected to the output shaft, the pulsator assembly has a pulsator, and a card for axially engaging and positioning the pulsator assembly An engaging structure, at least one slot matching the engaging structure is provided on the output shaft, and the detachment of the engaging structure from the engaging slot is realized by magnetic force. The detachment of the engaging structure from the card slot is achieved by magnetic force, and when the pulsator assembly needs to be disassembled, a magnetic force is generated to attract the engaging structure to realize the detachment of the engaging structure from the card slot, making the disassembly operation simple; After disassembly, the magnetic force is cancelled, so that the engaging structure is reset, and then the pulsator assembly is installed in place; the disassembly is realized by magnetic attraction or repulsion, and it is possible to apply force to the engaging structure without disassembling any part of the pulsator assembly , to realize the disengagement of the clamping and fixing, so that the structural setting of the clamping structure is simple, and the operation is labor-saving and convenient.

Description

a washing machine

technical field

The invention belongs to the technical field of washing machines, and in particular relates to 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 washing machine to solve the problem of inconvenient disassembly of the pulsator existing in the existing washing machine, and realize quick disassembly and installation 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 washing machine, comprising an output shaft, and a pulsator assembly detachably connected to the output shaft, the pulsator assembly has a pulsator, and an engaging structure for the axial engagement and positioning of the pulsator assembly. The output shaft is provided with at least one engaging slot matching the engaging structure, and the engaging structure is disengaged from the engaging slot through magnetic force.

Further, a magnetic force is generated between the engaging structure and the removal tool to drive the engaging structure to disengage from the slot.

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, a first through hole for the output shaft to pass through is opened on the limiting member.

Further, the pulsator assembly also includes a positioning chamber for accommodating the clamping member and the limiting member, the positioning chamber has a positioning chamber wall for limiting the radial displacement of the clamping member, and the clamping member and the limiting member The walls of the positioning cavity are in contact, and the bottom of the positioning cavity is provided with a second through hole for the output shaft to pass through.

Further, the wall of the positioning cavity gradually extends outward along the direction of disengagement of the locking structure, and the limiting part is located above the clamping part.

Further, the engaging structure further includes an elastic member that pushes the limiting member to realize the engaging installation of the clamping member and the slot.

Further, the positioning cavity is also provided with a positioning and fixing part extending radially outward, the positioning and fixing part is fixedly connected with the pulsator, and a downward extending The second positioning edge.

Further, the pulsator assembly further includes an outer cover fixedly arranged with the pulsator, the outer cover covers the outside of the positioning cavity, and the elastic member is located between the outer cover and the limiting member.

Further, a fourth extending edge extending downward is provided on the outer cover, and the elastic member is sleeved on the outside of the fourth extending edge.

Further, the limiting member includes a first limiting edge extending upward, the output shaft passes through the first limiting edge, and the elastic member is sleeved on the outside of the first extending edge.

Further, the restricting member includes a housing cavity for housing the clamping component, the housing cavity is sleeved on the outside of the output shaft, and a cavity for the clamping component is opened on the wall of the housing cavity. The protruding opening, the clamping member protrudes from the opening and contacts the cavity wall of the accommodating cavity.

Further, after the pulsator assembly is engaged and fixed with the output shaft, part or all of the locking groove is located in the accommodating cavity.

Further, the same number of locking slots as the number of the clamping parts are opened in the circumferential direction of the output shaft.

Further, a constriction is provided on the output shaft to form the locking groove.

Further, the clamping member is spherical.

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

Further, the pulsator assembly also includes a connecting piece sleeved on the outside of the output shaft, a locking piece is provided between the connecting piece and the output shaft to prevent relative rotation between the two, and the connecting piece is located on the The lower part of the impeller assembly.

Further, the output shaft includes a first output shaft and a second output shaft fixed coaxially, the diameter of the first output shaft is larger than the diameter of the second output shaft, and a The stepped holes of the first output shaft and the second output shaft match.

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.

In the washing machine provided by the present invention, the axial fixation of the pulsator assembly is realized by setting the engaging structure and the engagement of the card slot, so that the installation of the pulsator assembly is simple and convenient; and the detachment of the engaging structure and the card slot is realized by magnetic force, When the pulsator assembly needs to be disassembled, a magnetic force is generated to attract the engaging structure, and the detachment of the engaging structure from the card slot is realized, so that the disassembly operation is simple; The wheel assembly is installed in place; disassembly is achieved by magnetic attraction or repulsion. Due to the penetrability of the magnetic force, it is possible to apply force to the snap-fit structure without disassembling any part of the impeller assembly to realize the detachment of the snap-fit. The structural setting of the engaging structure is simple, and the operation is labor-saving and convenient.

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 structural representation of the first embodiment of the washing machine proposed by the present invention;

Fig. 2 is a schematic diagram of the enlarged structure of the cross-sectional view of A-A in Fig. 1;

Fig. 3 is a schematic diagram of an enlarged structure of the engaging structure in Fig. 2;

Fig. 4 is an enlarged schematic diagram of part of the structure after disassembly of the pulsator assembly in Fig. 2;

Fig. 5 is a schematic structural view of the output shaft in Fig. 2;

Fig. 6 is a schematic diagram of the enlarged structure of the second output shaft in Fig. 5;

Fig. 7 is a schematic diagram of the enlarged structure of the limiting part in Fig. 4;

Fig. 8 is a schematic diagram of an enlarged structure of the positioning cavity in Fig. 2;

Fig. 9 is a structural schematic diagram of a removal tool;

Fig. 10 is a schematic diagram of the front view of Fig. 9;

Fig. 11 is a schematic cross-sectional structure diagram of Fig. 10;

Fig. 12 is a flow chart of the dismounting method of the pulsator assembly;

Fig. 13 is a schematic structural view of a second embodiment of the washing machine proposed by the present invention;

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

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

Fig. 16 is a schematic structural view of a third embodiment of the washing machine proposed by the present invention;

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.

1-12, the first embodiment of the washing machine proposed by the present invention, a 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 and fixed with the output shaft 20 as a whole or disengaged and separated. The pulsator assembly 10 has a pulsator 1 and an engaging structure 2 for the axial positioning of the pulsator assembly 10. The output shaft 20 is provided with an engaging structure 2 to match at least one card slot 201, the engagement structure 2 can be disengaged from the card slot 201 through magnetic force. The axial fixation of the pulsator assembly 10 is realized by setting the engaging structure 2 and the engaging groove 201, so that the installation of the pulsator assembly 10 is simple and convenient; when the pulsator assembly 10 needs to be disassembled, the magnetic force attracts the engaging structure 2 to realize The detachment of the engaging structure 2 from the card slot 201 makes the disassembly operation simple; after the pulsator 1 is disassembled, the magnetic force is cancelled, so that the engaging structure 2 is reset, and then the pulsator assembly is installed in place; the disassembly is realized by magnetic attraction or repulsion, because The penetration of the magnetic force can apply force to the engaging structure 2 without disassembling any parts of the pulsator assembly 10, so as to realize the disengagement of the engaging and fixing, so that the structural setting of the engaging structure 2 is simple and the operation is labor-saving convenient.

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 .

As shown in FIG. 3 , the engaging structure 2 includes a clamping member 21 that matches and engages with the slot 201 , and a restricting member 22 that locks the clamping member 21 in an engaged state. The clamping member 21 is movable relative to the restricting member 22 Moving radially, the limiting 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 engaging structure 2 moves toward the clothes inlet of the washing machine, 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 locking groove 201 . When the pulsator assembly 10 is disassembled, the clamping member 21 is locked and removed by moving the limiting member 22 . The clamping member 21 contacts the groove bottom of the locking groove 201 on the radially inner side and the positioning cavity wall 31 on the outside. By setting the positioning cavity wall 31, it gradually extends outward in the direction close to the open end of the positioning cavity 3, that is, the positioning cavity wall 31 Extending upwards and outwards; after the pulsator assembly 10 is installed and fixed, the distance between the positioning cavity wall 31 and the bottom of the slot 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 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 .

The engaging structure 2 also includes an elastic member 23 that provides a driving force for the restricting member 22. After the engaging structure 2 is engaged and fixed with the slot 201, the elastic member 23 gives the restricting member 22 a downward elastic force to limit the clamping member 21 in the At the slot 201 , the locking and fixing of the pulsator assembly 2 is realized. When the pulsator assembly 2 is disassembled, the dismounting tool 30 is placed above the engaging structure 2, so that the dismounting tool 30 gives the engaging structure 2 an upward attractive force, and the elastic member 23 gives the engaging structure 2 downward elastic force, so that the dismounting The magnetic attraction force given by the tool 30 to the engaging structure 2 is greater than the sum of the elastic force and the gravity of the engaging structure 2, so that the engaging structure 2 can move upwards, and of course friction must be overcome.

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, 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. 7 , 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 is engaged in the engaging groove 201 , part or all of the engaging groove 201 is 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 .

3, 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. 4 and shown in Fig. 8, 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 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.

Referring to Fig. 4, the pulsator assembly 10 also includes a connecting piece 5 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. The lower part of the wheel assembly 10. Referring to Fig. 5, the output shaft 20 includes a first output shaft 202 and a second output shaft 203 coaxially fixedly arranged, the diameter of the first output shaft 202 is larger than the diameter of the second output shaft 203, and the connector 5 is provided with The stepped hole 5 matching the first output shaft 202 and the second output shaft 203 ; the second positioning edge 34 is located in the stepped hole 5 .

Referring to Figures 9-11, for the structure of the removal tool 30, a single magnet can be used, but for the convenience 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 magnet fixing part 302 located at The handle portion 303 on the upper part of the magnet fixing portion 302 has a plurality of handle ribs protruding outwards in the circumferential direction. 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 Fig. 12, the disassembly method of the above-mentioned pulsator assembly 10 has the following steps:

A. Extend the removal tool 30 from the laundry inlet of the washing machine into the inner tub and approach the center of the pulsator assembly 10 ; the engaging structure 2 is located at the center of the pulsator assembly 10 .

B0. When the removal tool 30 approaches the engagement structure 2, when the distance between the removal tool 30 and the engagement structure 2 is equal to or less than the magnetic induction range between the two, the distance between the removal tool 30 and the engagement structure 2 There is 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.

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.

When the removal 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.

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

Referring to Fig. 13-Fig. 15, the second embodiment of the washing machine proposed by the present invention, the main difference between this embodiment and the first embodiment is that the structure of the positioning cavity and the structure of the limiting member are different, and other Embodiment same structure.

A washing machine includes an output shaft 20 connected to a 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 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 have at least one engagement groove 201 matching the engagement structure 2 on the output shaft 20, and the engagement structure 2 and the engagement groove are realized by magnetic force 201's breakaway. The axial fixation of the pulsator assembly 10 is realized by setting the engaging structure 2 and the engaging groove 201, so that the installation of the pulsator assembly 10 is simple and convenient; when the pulsator assembly 10 needs to be disassembled, the magnetic force attracts the engaging structure 2 to realize The detachment of the engaging structure 2 from the card slot 201 makes the disassembly operation simple; after the pulsator 1 is disassembled, the magnetic force is cancelled, so that the engaging structure 2 is reset, and then the pulsator assembly is installed in place; the disassembly is realized by magnetic attraction or repulsion, because The penetration of the magnetic force can apply force to the engaging structure 2 without disassembling any parts of the pulsator assembly 10, so as to realize the disengagement of the engaging and fixing, so that the structural setting of the engaging structure 2 is simple and the operation is labor-saving convenient.

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 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 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.

The disassembly method of the pulsator assembly 10 in the first embodiment is also applicable to this embodiment.

Referring to Fig. 16-Fig. 17, the third embodiment of the washing machine proposed by the present invention, the main difference between this embodiment and the first embodiment is that the output shaft does not protrude from the limiter, and other The same structure as the first embodiment.

A washing machine includes an output shaft 20 connected to a drive motor, and a pulsator assembly 10 detachably connected to the output shaft 20. The pulsator assembly 10 can be engaged and fixed with the output shaft 20 as a whole or disengaged. The pulsator assembly 10 has The pulsator 1 and the engaging structure 2 for the axial positioning of the pulsator assembly 10 are provided with at least one engaging groove 201 matching the engaging structure 2 on the output shaft 20, and the engaging structure 2 and the engaging structure 2 are realized by magnetic force. Detachment of groove 201. The axial fixation of the pulsator assembly 10 is realized by setting the engaging structure 2 and the engaging groove 201, so that the installation of the pulsator assembly 10 is simple and convenient; when the pulsator assembly 10 needs to be disassembled, the magnetic force attracts the engaging structure 2 to realize The detachment of the engaging structure 2 from the card slot 201 makes the disassembly operation simple; after the pulsator 1 is disassembled, the magnetic force is cancelled, so that the engaging structure 2 is reset, and then the pulsator assembly is installed in place; the disassembly is realized by magnetic attraction or repulsion, because The penetration of the magnetic force can apply force to the engaging structure 2 without disassembling any parts of the pulsator assembly 10, so as to realize the disengagement of the engaging and fixing, so that the structural setting of the engaging structure 2 is simple and the operation is labor-saving convenient.

Referring to Fig. 7, the engaging structure 2 includes a clamping part 21 matched and engaged with the slot 201, and a restricting part 22 defining the clamping part 21; the structure of the restricting part 22 is basically the same as that in the first embodiment , the difference is that the upper end of the output shaft 20 is located in the accommodating chamber 220 , and thus no through hole may be provided at the top of the accommodating chamber 220 .

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 (10)

1. A washing machine, comprising an output shaft and a pulsator assembly detachably connected to the output shaft, characterized in that the pulsator assembly has a pulsator, and is used for axial engagement and positioning of the pulsator assembly The engaging structure, at least one slot matching the engaging structure is provided on the output shaft, and the disengagement of the engaging structure from the engaging slot is realized by magnetic force; the engaging slot extends axially set up; A dismantling tool for dismantling the engaging structure is also included, and the dismantling tool has a magnet, a magnet fixing part for fixing the magnet, and a handle part located on the upper part of the magnet fixing part. 2. The washing machine according to claim 1, characterized in that, the engaging structure comprises a clamping member that matches and engages with the card slot, and a limiting member that locks the clamping member in an engaged state, so The clamping part can move radially relative to the limiting part. 3. The washing machine according to claim 2, wherein the pulsator assembly further comprises a positioning chamber for accommodating the clamping member and the limiting member, and the positioning chamber has a function for limiting the radial direction of the clamping member. The displacement positioning cavity wall, the clamping member is in contact with the positioning cavity wall, and the bottom of the positioning cavity is provided with a second through hole for the output shaft to pass through. 4 . The washing machine according to claim 3 , wherein the wall of the positioning cavity gradually extends outward along a direction in which the engaging structure is disengaged, and the limiting member is located above the clamping member. 5 . 5 . The washing machine according to claim 3 , wherein the engaging structure further comprises an elastic member pushing the limiting member to realize the engaging installation of the clamping member and the slot. 5 . 6. The washing machine according to claim 5, wherein the pulsator assembly further comprises an outer cover fixedly arranged with the pulsator, the outer cover covers the outside of the positioning cavity, and the elastic force A piece is located between the outer cover and the limiting piece. 7 . The washing machine according to claim 6 , wherein the limiting member includes a first limiting edge extending upward, and the elastic member is sleeved on an outer side of the first limiting edge. 8 . 8 . The washing machine according to any one of claims 2 to 7 , wherein the restricting member includes an accommodating chamber for accommodating the clamping member, and the accommodating chamber is sleeved on the outside of the output shaft, An opening for the clamping member to protrude is opened on the cavity wall of the accommodating cavity, and the clamping component protrudes out of the opening and contacts the cavity wall of the accommodating cavity. 9 . The washing machine according to any one of claims 2 to 7 , characterized in that, the engaging groove matched with the clamping member is formed in the circumferential direction of the output shaft. 10 . 10. The washing machine according to any one of claims 1 to 7, characterized in that a constriction is provided on the output shaft to form the locking groove.

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