CN211772117U

CN211772117U - Pulsator washing machine

Info

Publication number: CN211772117U
Application number: CN201922015193.9U
Authority: CN
Inventors: 张娟娟; 程宝珍; 孙广彬; 王玲臣
Original assignee: Qingdao Haier Washing Machine Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Washing Machine Co Ltd; Haier Smart Home Co Ltd
Priority date: 2019-11-20
Filing date: 2019-11-20
Publication date: 2020-10-27
Anticipated expiration: 2029-11-20

Abstract

The utility model discloses a rotary drum washing machine, include: a driving shaft which is driven by the motor to rotate and extends into the inner tub of the washing machine; a pulsator assembly detachably connected to the driving shaft; the electromagnetic coil is arranged on the outer barrel of the washing machine and is used for realizing the disassembly of the impeller assembly and the driving shaft; and a clamping structure for axial positioning is arranged between the impeller assembly and the driving shaft, and the electromagnetic coil is used for releasing the clamping of the clamping structure. When the impeller assembly needs to be disassembled, the clamping of the clamping structure is released through the electrification or the outage of the electromagnetic coil, so that the impeller assembly and the driving shaft are disassembled; the attractive force of magnetism on the clamping structure after the electromagnetic coil is electrified and the magnetism after the electromagnetic coil is powered off disappear, so that the clamping of the clamping structure is released and the clamping is controlled; the disassembly of the impeller assembly can be realized by controlling the power-on and power-off of the electromagnetic coil, the operation is simple and convenient, and the disassembly and assembly efficiency is favorably improved.

Description

Pulsator washing machine

Technical Field

The utility model belongs to the technical field of washing machine, concretely relates to rotary drum washing machine.

Background

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

The above information disclosed in this background section is only for enhancement of understanding of the background of the application and therefore it may comprise prior art that does not constitute known to a person of ordinary skill in the art.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to foretell problem among the prior art, provide a rotary drum washing machine to solve the inconvenient problem of impeller dismantlement that current washing machine exists, realize quick dismantlement and the installation of washing machine impeller.

In order to realize the purpose of the utility model, the utility model adopts the following technical scheme to realize:

a pulsator washing machine comprising:

a driving shaft which is driven by the motor to rotate and extends into the inner tub of the washing machine;

a pulsator assembly in the inner tub and detachably connected to the driving shaft;

the electromagnetic coil is arranged on the outer barrel of the washing machine and is used for realizing the disassembly of the impeller assembly and the driving shaft;

and a clamping structure for axial positioning is arranged between the impeller assembly and the driving shaft, and the electromagnetic coil is used for releasing the clamping of the clamping structure.

Furthermore, the clamping structure comprises a clamping groove formed in the driving shaft, a clamping piece arranged on the impeller assembly and clamped with the clamping groove, and a limiting piece arranged on the impeller assembly and used for limiting the axial movement of the clamping piece; the restriction member has a tendency to move closer to the solenoid coil when the solenoid coil is energized.

Further, the clamping piece is made of non-ferrous materials, and the clamping piece is radially movably located in the limiting piece.

Furthermore, the clamping structure further comprises a positioning cavity which is arranged on the impeller assembly and used for limiting the clamping piece to move in the radial direction, and the limiting piece and the clamping piece are located in the positioning cavity.

Further, the positioning cavity is a conical cavity with a lower opening.

Further, the restriction member has a second through hole for passing the drive shaft therethrough, and a housing for housing the chucking member, the housing having a first opening for the chucking member to project outwardly and a second opening for the chucking member to project inwardly into the second through hole.

Furthermore, the clamping structure further comprises a positioning seat arranged on the impeller assembly, and a first through hole for the driving shaft to pass through is formed in the positioning seat.

Further, the driving shaft is sleeved with a sealing ring, and the sealing ring is located between the first through hole and the driving shaft.

Furthermore, an elastic part which pushes the limiting part and realizes the clamping of the clamping part and the clamping groove is arranged between the positioning seat and the limiting part.

Furthermore, a concave accommodating groove is formed in the positioning seat, the edge of the accommodating groove extends upwards to form an annular extending edge, and the lower end of the elastic part is located in the accommodating groove.

Furthermore, be equipped with on the impeller subassembly and be used for covering the enclosing cover of block structure, be equipped with annular sealed pad between enclosing cover and the positioning seat.

Compared with the prior art, the utility model discloses an advantage is with positive effect: the axial fixation of the impeller assembly is realized by arranging the clamping structure, so that the installation of the impeller assembly is simple and convenient; when the impeller assembly needs to be disassembled, the clamping of the clamping structure is released through the electrification or the outage of the electromagnetic coil, so that the impeller assembly and the driving shaft are disassembled; the attractive force of magnetism on the clamping structure after the electromagnetic coil is electrified and the magnetism after the electromagnetic coil is powered off disappear, so that the clamping of the clamping structure is released and the clamping is controlled; the disassembly of the impeller assembly can be realized by controlling the power-on and power-off of the electromagnetic coil, the operation is simple and convenient, and the disassembly and assembly efficiency is favorably improved.

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

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an embodiment of a pulsator washing machine according to the present invention;

FIG. 2 is an enlarged view of the engagement structure of FIG. 1;

FIG. 3 is a schematic illustration of the wave wheel assembly of FIG. 1 shown disassembled;

FIG. 4 is an enlarged schematic view of the center of the wave wheel assembly of FIG. 2;

FIG. 5 is an enlarged view of the engagement structure of FIG. 2;

FIG. 6 is an enlarged schematic view of the delimitation member and the retainer of FIG. 5.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention.

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

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

Referring to fig. 1-6, in order to provide an embodiment of the pulsator washing machine of the present invention, the pulsator washing machine includes a casing, an outer tub 100 and an inner tub 200 sleeved in the casing, and a driving motor for driving the inner tub to rotate, the driving motor provides power for washing clothes for the washing machine, a driving shaft 20 connected to the driving motor, an upper portion of the driving shaft 20 extends into the inner tub 50, a pulsator assembly 10 is disposed at a bottom of the inner tub 50, and the pulsator assembly 10 is detachably connected to the driving shaft 20; the pulsator assembly 10 may be integrally engaged with or disengaged from the driving shaft 20; the impeller assembly 10 is detachably connected with the driving shaft 20, and a clamping structure 30 for axial clamping is arranged between the impeller assembly 10 and the driving shaft 20; the electromagnetic coil 40 is also provided for realizing the detachment of the pulsator assembly 10 from the driving shaft 20, that is, the electromagnetic coil 40 is used for releasing the engagement of the engaging structure 30.

The clamping structure 30 is arranged to axially fix the impeller assembly 10, so that the impeller assembly 10 is simple and convenient to mount; when the pulsator assembly 10 needs to be disassembled, the clamping of the clamping structure 30 is released through the electrification or the outage of the electromagnetic coil 40, so that the pulsator assembly 10 and the driving shaft 20 are disassembled; the electromagnetic coil 40 has magnetic attraction force to the clamping structure after being electrified, and the magnetic force disappears after the electromagnetic coil 40 is powered off, so that the clamping and the releasing of the clamping structure 30 are realized; the disassembly of the impeller assembly 10 can be realized by controlling the on-off of the electromagnetic coil 40, the operation is simple and convenient, and the disassembly and assembly efficiency is improved.

The clamping structure 30 comprises a clamping piece 12 and a limiting piece 14 which are arranged on the impeller component 10, and a clamping groove 21 which is arranged on the output shaft 20, wherein the clamping piece 12 is clamped with the clamping groove 21 to realize clamping and fixing of the impeller component 10 and the drive shaft 20; the limiting piece 14 is used for limiting the axial movement of the clamping piece 12, when the pulsator assembly 10 is clamped and fixed with the output shaft 20, the limiting piece 14 is in a fixed state relative to the output shaft 20, the axial and radial movements of the clamping piece 12 are limited, and the clamping piece 12 is clamped in the clamping groove 21, so that the pulsator assembly 10 is prevented from being disengaged in the axial direction relative to the output shaft 20. Of course, after the pulsator assembly 10 is engaged and fixed with the output shaft 20, the output shaft 20 may drive the pulsator assembly 10 to rotate.

The clamping member 12 is radially movable within the limiting member 14, and the limiting member 14 can drive the clamping member 12 to move in the axial direction. The limiting piece 14 is made of a ferrous material, namely, the limiting piece 14 can be attracted magnetically; that is, when the solenoid coil 40 is energized, the restriction member 14 has a tendency to move closer to the solenoid coil. The electromagnetic coil 40 is preferably arranged to be energized when the pulsator assembly 10 needs to be disassembled, and the limiting piece 14 moves downwards under the action of magnetic force to drive the clamping piece 12 to move downwards, so that the clamping piece 12 has a radially movable space, that is, the clamping piece 12 can be separated from the clamping groove 21, and the pulsator assembly 10 can move upwards to be disassembled; under normal conditions, the electromagnetic coil 40 is in a non-energized state, and at this time, the clamping member 12 is clamped in the clamping groove 21, and the pulsator assembly 10 is mounted and fixed on the driving shaft 20. Preferably, the electromagnetic coil 40 is fixedly disposed on the lower end surface of the outer tub 100, the electromagnetic coil 40 is in an annular structure, and the electromagnetic coil 40 is disposed coaxially with the outer tub 100.

When the pulsator assembly 10 is disassembled, the electromagnetic coil 40 is energized to generate magnetism, so that in order to avoid the influence of magnetism on the clamping member 12, so that the clamping member 12 is subjected to large downward magnetic attraction force, the clamping member 12 is difficult to move in the radial direction, the clamping member 12 is preferably arranged to be made of a non-ferrous material, for example, the clamping member 12 is made of stainless steel balls, and the clamping member 12 cannot be attracted by magnetic force.

The engaging structure 30 further comprises a positioning cavity 15 arranged on the pulsator assembly 10, the positioning cavity 15 is used for limiting the radial movement of the clamping member 12, the limiting member 14 and the clamping member 12 are positioned in the positioning cavity 15, the positioning cavity 15 is provided with a positioning cavity inner wall 151 for limiting the radial movement of the clamping member 12, and the clamping member 12 is in contact with the positioning cavity inner wall 151. The clamping piece 12 is limited and locked through the limiting piece 14, the positioning cavity inner wall 151 and the clamping groove 21, so that the clamping piece 12 is limited in axial movement and radial movement, and the clamping piece 12 is clamped and fixed in the clamping groove 21 after the impeller assembly 10 is installed.

The inner side of the clamping piece 12 in the radial direction contacts with the groove bottom of the clamping groove 21, the outer side contacts with the inner wall 151 of the positioning cavity, the inner wall 151 of the positioning cavity gradually extends outwards in the direction close to the open end of the positioning cavity 15, and the inner wall 151 of the positioning cavity gradually extends outwards in the moving direction of the locking piece 14 when the pulsator assembly 10 is disassembled; that is, the positioning chamber inner wall 151 extends downward and outward; the positioning cavity 15 is a conical cavity with an open lower end; after the pulsator assembly 10 is mounted and fixed, the distance between the inner wall 151 of the positioning chamber and the bottom of the groove 21 gradually increases in the downward direction, that is, the radial distance gradually increases in the downward direction. When the pulsator assembly 10 is disassembled, the electromagnetic coil 40 is electrified to generate magnetic attraction force to attract the limiting piece 14 to move downwards, so that the clamping piece 12 is driven to move downwards, and the clamping piece 12 has an outward moving space in the radial direction; then, the impeller assembly 10 is lifted upwards, the clamping piece 12 moves upwards at any time, when the clamping piece reaches the upper end of the clamping groove 21, due to the inclined arrangement of the positioning cavity inner wall 151, after the clamping piece 12 moves upwards, the positioning cavity inner wall 151 does not block the clamping piece 12 any more, so that the clamping piece 12 moves outwards to be separated from the clamping groove 21, and the clamping locking between the impeller assembly 10 and the output shaft 20 is released.

The clamping structure 30 further comprises a positioning seat 18 arranged on the pulsator assembly 10, an open end of the positioning cavity 15 is fixed on the positioning seat 18, an elastic member 16 which pushes the limiting member 14 and realizes clamping of the clamping member 12 and the clamping groove 21 is arranged between the positioning seat 18 and the limiting member 14, the elastic member 16 gives upward elastic force to the limiting member 14, the limiting member 14 is pressed on the top wall of the positioning cavity 1, axial limiting of the limiting member 14 is realized, meanwhile, the clamping member 12 is pressed on the inner wall 151 of the positioning cavity, axial positioning and radial positioning of the clamping member 12 are realized, and clamping of the clamping member 12 and the clamping groove 21 is realized. The electromagnetic coil 40 is electrified to generate magnetic attraction force, so that the limiting piece 14 is attracted to move downwards and the elastic piece 16 is compressed; after the electromagnetic coil 40 is powered off, the magnetic attraction acting on the limiting piece 14 disappears, and the elastic piece 16 pushes the limiting piece 14 to reset upwards and press the top wall of the positioning cavity 15.

A first through hole 181 for the driving shaft 20 to pass through is opened on the positioning seat 18, a sealing ring 50 is sleeved on the driving shaft 20, and the sealing ring 50 is used for sealing between the first through hole 181 and the driving shaft 20 to prevent the washing water from entering.

Referring to fig. 6, the limiting member 14 has a second through hole 141 for passing the output shaft 20 therethrough, and a receiving portion 142 for receiving the clamping member 12, the second through hole 141 being vertically through, the receiving portion 142 having a first opening 143 for extending the clamping member 12 outwardly and a second opening 144 for extending the clamping member 12 inwardly into the second through hole 141, that is, the receiving portion 142 having a first opening 143 communicating with the outside and a second opening 144 communicating with the second through hole 141, the clamping member 12 extending outwardly through the first opening 412 and being capable of contacting with the inner wall 151 of the positioning cavity, and the clamping member 12 extending into the second through hole 141 through the second opening 144 and being capable of engaging with the engaging groove 21 on the output shaft 20. After the pulsator assembly 10 is installed, the chucking member 12 is pressed in the radial direction by the positioning chamber inner wall 151, limiting the radial movement of the chucking member 12. The output shaft 20 passes through the second through hole 141, and after the retainer 12 is engaged with the catch groove 21, the inner side of the retainer 12 is in contact with the bottom of the catch groove 21. When the limiting piece 14 moves up and down, the clamping piece 12 can be driven to move synchronously, and the clamping piece 12 can move radially to realize the clamping and the disengagement of the clamping piece 12 and the clamping groove 21. An extension edge 145 extends downwards along the edge of the second through hole 141 of the limiting member 14, and the elastic member 16 is sleeved outside the extension edge 145.

The impeller assembly 10 further comprises an impeller 11 and an outer cover 17 fixedly arranged with the impeller 11, a downward groove 111 is arranged at the center of the impeller 11, the lower edge of the outer cover 17 is clamped and fixed on the groove 111, and the clamping structure is positioned in a space enclosed by the outer cover 17 and the groove 111; an annular sealing gasket 60 is arranged between the outer cover 17 and the positioning socket 18.

The block structure of setting on impeller subassembly 10 is from upwards being coaxial setting down in proper order: positioning seat 18, elastic member 16, limiting member 14 and positioning cavity 15, wherein clamping member 12 is located in accommodating part 142 of limiting member 14.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or that equivalents may be substituted for elements thereof; such modifications and substitutions do not depart from the spirit and scope of the present invention, which is claimed.

Claims

1. A pulsator washing machine, comprising:

2. The pulsator washing machine according to claim 1, wherein the engaging structure comprises an engaging groove formed on the driving shaft, an engaging member provided on the pulsator assembly and engaged with the engaging groove, and a limiting member provided on the pulsator assembly and limiting axial movement of the engaging member; the restriction member has a tendency to move closer to the solenoid coil when the solenoid coil is energized.

3. The pulsator washing machine as claimed in claim 2, wherein the chucking member is made of a non-ferrous material, and the chucking member is radially movably disposed in the restriction member.

4. The pulsator washing machine as claimed in claim 2, wherein the engaging structure further comprises a positioning cavity provided on the pulsator assembly for limiting radial movement of the chucking member, the limiting member and the chucking member being located in the positioning cavity.

5. The pulsator washing machine as claimed in claim 2, wherein the restriction member has a second through hole for passing the driving shaft therethrough, and a receiving portion for receiving the chucking member, the receiving portion having a first opening for the chucking member to protrude outward and a second opening for the chucking member to protrude inward into the second through hole.

6. The pulsator washing machine according to any one of claims 2 to 5, wherein the engaging structure further comprises a positioning seat provided on the pulsator assembly, and a first through hole for the driving shaft to pass through is provided on the positioning seat.

7. The pulsator washing machine as claimed in claim 6, wherein a sealing ring is sleeved on the driving shaft, the sealing ring being located between the first through hole and the driving shaft.

8. The pulsator washing machine according to claim 6, wherein an elastic member for pushing the limiting member and realizing the clamping of the clamping member with the clamping groove is provided between the positioning seat and the limiting member.

9. The pulsator washing machine as claimed in claim 8, wherein a concave receiving groove is formed in the positioning seat, and extends upward along an edge of the receiving groove to form an annular extending edge, and a lower end of the elastic member is located in the receiving groove.

10. The pulsator washing machine as claimed in claim 6, wherein an outer cover for covering the engagement structure is provided on the pulsator assembly, and an annular sealing pad is provided between the outer cover and the positioning seat.