WO2020244459A1

WO2020244459A1 - Pulsator mounting structure and washing machine

Info

Publication number: WO2020244459A1
Application number: PCT/CN2020/093272
Authority: WO
Inventors: 赵志强; 许升
Original assignee: 青岛海尔洗衣机有限公司; 海尔智家股份有限公司
Priority date: 2019-06-06
Filing date: 2020-05-29
Publication date: 2020-12-10
Also published as: CN112048877A

Abstract

A pulsator mounting structure. A pulsator (4) is mounted on a pulsator shaft (6); snap parts (70) are provided on the pulsator (4), and snap grooves (71) are provided on the pulsator shaft (6); or snap grooves (71) are provided on the pulsator (4), and snap parts (70) are provided on the pulsator shaft (6); when an external force is applied to the snap parts (70), the snap parts are subjected to extending or retracting displacement and/or deformation, and after the external force is removed, the snap parts (70) are restored to be snapped fitted and connected to the snap grooves (71). The arrangement above enables quick snap-fitting connection or detachment between the pulsator (4) and the pulsator shaft (6), realizing the effect of convenient and quick disassembly and assembly of the pulsator (4) and the pulsator shaft (6), thereby achieving the purpose of facilitating quick detachment and mounting of the pulsator (4) by after-sale staff and a user so as to repair or clean a washing machine. Also provided is a washing machine. The pulsator (4) is connected to the pulsator shaft (6) in a quickly detachable manner by means of the mounting structure above.

Description

Wave wheel installation structure and washing machine

Technical field

The invention belongs to the field of laundry washing equipment, and specifically relates to a quick disassembly and assembly structure of a washing machine pulsator, and also relates to a washing machine in which the pulsator is assembled via the above-mentioned mounting structure.

Background technique

The pulsator of the existing washing machine is screwed to the pulsator shaft of the drive motor of the washing machine, which causes the disassembly and assembly of the pulsator to be tightened or unscrewed by a screwdriver, which makes the disassembly and assembly of the pulsator extremely troublesome. The above-mentioned pulsator installation structure not only slows down the production cycle during the assembling process of the washing machine, but also increases the disassembly and assembly time in the later use and maintenance of the washing machine, which causes inconvenience for the user to clean the gap between the pulsator and the inner tub, and disassembly and assembly during the maintenance process. Long round time and other issues.

In view of the above technical defects, this application is hereby submitted.

Summary of the invention

The purpose of the present invention is to overcome the above-mentioned defects in the prior art and provide a pulsator mounting structure to achieve the purpose of quickly disassembling and assembling the pulsator of a washing machine.

In order to solve the technical problem and achieve the technical effect, the basic design idea of the technical solution adopted in the present invention is:

A pulsator installation structure, the pulsator is assembled on the pulsator shaft; the pulsator is provided with a snap part and the pulsator shaft is provided with a snap groove; or the pulsator is provided with a snap groove and the pulsator shaft is provided with a snap When the buckle part is subjected to an external force, the buckle part produces telescopic displacement and/or deformation, and the buckle part is reset to be locked and connected with the buckle groove after the external force is removed.

Further, the opposite sides of the pulsator shaft are respectively provided with buckling parts that can protrude and retract, and the buckle parts on both sides are respectively locked and connected with the one-to-one corresponding buckle grooves.

Further, the buckle portion is connected with an elastic member extending in the radial direction of the pulsator and the axis of the pulsator, and the extension end of the elastic member is connected with the pulsator shaft or the pulsator, so that the buckle portion generates along the pulsator diameter under the action of the spring. Preferably, the buckle part is installed in the buckle seat, the buckle seat is provided with a sliding groove extending in the radial direction of the pulsator, and at least part of the buckle part is in the sliding groove, so that the buckle part receives The chute guide can only produce the telescopic displacement in the radial direction of the pulsator.

Further, the buckle portion includes a buckle rod disposed through the sliding groove, and the end of the buckle rod protrudes from the buckle seat; the opening of the buckle groove is set toward the axis of the pulsator, and the buckle rod protrudes from the buckle. The end of the seat is at least partially arranged coplanar with the buckle groove, so that the buckle rod is moved from the opening to the buckle groove by the resetting force; preferably, the buckle rod is arranged horizontally, and both ends of the buckle rod are respectively self-locking The sliding grooves on the opposite side of the buckle seat pass through, and the buckle groove and the protruding ends on both sides of the buckle rod are arranged coplanarly, so that both ends of the buckle rod can extend into the buckle groove for buckle connection.

Further, the buckle portion includes a button connected to the buckle seat; the button is coaxially arranged with the elastic member, and one end of the buckle seat is connected to the elastic member and/or the buckle rod; preferably, the button is connected to the elastic member. The cylindrical button is coaxially arranged in a cylindrical structure, the cylindrical button is coaxially inserted into the through hole on the buckle seat, and one end of the cylindrical button protruding from the buckle seat is provided with a ring of radially protruding and extending limit ribs. The diameter of the outer circumference is larger than the aperture of the through hole, so that the limiting rib and the buckle seat are limited in conflict, and the protruding end of the button will not enter the mounting seat.

Further, there is a gap between the opening of the buckle groove and the outer wall of the pulsator shaft, and the gap distance is greater than the outer circumference of the buckle rod to ensure that the buckle rod enters the gap and then moves from the opening to the buckle groove.

Further, one side of the pulsator is a stirring surface for stirring clothes and/or water flow, and the other side is a mounting surface that is coaxially connected with the inner barrel shaft; the buckle groove and the buckle part are both provided on the mounting surface side of the pulsator, and the pulsator There is a hollow part for the user to reach in and apply external force to the buckle part; preferably, the hollow part of the pulsator is arranged above or above the part where the button protrudes from the mounting seat.

Further, a detachable end cover is installed on the stirring surface of the pulsator, and the end cover at least covers the hollow part.

Furthermore, a detachable decorative cover is installed on the pulsator, and the decorative cover and the pulsator form a cavity, and the buckle groove and the buckle part are both provided in the cavity.

The present invention also provides a washing machine in which the pulsator is quickly detachably connected to the pulsator shaft via any of the above-mentioned mounting structures.

Compared with the prior art washing machine, the washing machine of the present invention has the following beneficial effects:

Through the above settings, the pulsator and the pulsator shaft can be quickly locked and connected or disassembled, and the pulsator can be easily and quickly disassembled and assembled with the pulsator shaft, which is convenient for after-sales personnel and users. The purpose of disassembling the pulsator, repairing or cleaning the washing machine.

At the same time, the invention has a simple structure and significant effects, and is suitable for popularization and use.

In order to make the design concept of the technical solution of the present invention clearer and facilitate further understanding of the beneficial effects brought about by it, some specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

Description of the drawings

The accompanying drawings are used as a part of the present invention to provide a further understanding of the present invention. The exemplary embodiments and descriptions of the present invention are used to explain the present invention, but do not constitute an improper limitation of the present invention. Obviously, the drawings in the following description are only some embodiments, and for those of ordinary skill in the art, other drawings can be obtained from these drawings without creative work. In the attached picture:

Figure 1 is a schematic structural diagram of a washing machine in an embodiment of the present invention;

2 is a schematic diagram of the installation structure of the pulsator in the embodiment of the present invention;

3 is a schematic diagram of the structure of the pulsator in the embodiment of the present invention when the cover is installed;

4 to 7 are schematic diagrams of the structure of the pulsator in different viewing angles in the embodiment of the present invention;

Figure 8 is a schematic view of the A-A cross-sectional structure of Figure 3 in the embodiment of the present invention;

Fig. 9 is a schematic diagram of the B-B cross-sectional structure of Fig. 3 in the embodiment of the present invention.

Indicated in the picture: 1, shell, 2, outer barrel, 3, inner barrel, 4, pulsator, 5, motor, 6, pulsator shaft, 7, end cover, 40, hollow part, 70, buckle part, 71, card Buckle groove, 72, slide groove, 73, buckle seat, 74, button, 75, elastic piece, 76, buckle rod.

It should be noted that these drawings and text descriptions are not intended to limit the scope of the invention in any way, but to explain the concept of the invention for those skilled in the art by referring to specific embodiments.

Detailed ways

In order to make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be described clearly and completely in conjunction with the accompanying drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention. , But not used to limit the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the pointed device or element must have a specific orientation or a specific orientation. The structure and operation cannot therefore be understood as a limitation of the present invention.

In the description of the present invention, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense, unless otherwise clearly specified and limited. For example, they can be fixed or detachable. Connected or integrally connected; it can be mechanically or electrically connected; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meaning of the above-mentioned terms in the present invention can be understood in specific situations.

Example one

As shown in Figures 1-9, this embodiment introduces a pulsator mounting structure, the pulsator 4 is assembled on the pulsator shaft 6; the pulsator shaft 6 is provided with a snap portion 70, and the pulsator 4 is provided with a snap Groove 71; when the buckle portion 70 is subjected to an external force, the buckle portion 70 generates a telescopic displacement, and after the external force is removed, the buckle portion 70 is reset to be locked and connected with the buckle groove 71.

In this embodiment, opposite sides of the pulsator shaft 6 are provided with protruding and retractable buckle portions 70, and the pulsator 4 is provided with buckle grooves for engaging and connecting with the buckling portions 70 on both sides respectively. 71.

In this embodiment, the pulsator shaft 6 is provided with a first buckle portion and a second buckle portion, the first buckle portion and the second buckle portion are symmetrically arranged with respect to the axis of the pulsator, and the first buckle portion and the second buckle portion The buckle parts can be respectively telescopically arranged in opposite directions, so that the pulsator 4 is locked with the pulsator shaft 6 via the two symmetrically extended buckle parts 70, so that the pulsator 4 and the pulsator shaft 6 are subjected to two rotations in the direction of rotation. The relatively stuck external force further realizes the effect that the pulsator 4 and the pulsator shaft 6 are locked by the buckle.

In this embodiment, the buckle portion 70 is connected with an elastic member 75 extending in the radial direction of the pulsator 4 to the axis of the pulsator 4, and the extension end of the elastic member 75 is connected with the pulsator shaft 6, so that the buckle portion 70 is in the elastic member Under the action of the elastic force, the telescopic displacement along the radial direction of the pulsator 4 is generated. In this embodiment, the elastic member 75 may be any structure that can provide elastic restoring force in the prior art, such as a spring, a hydraulic rod, a pneumatic rod, and a magnetic drive rod.

Preferably, in order to facilitate the installation of the buckle portion 70, the following arrangements are made in this embodiment: the buckle portion 70 is installed in the buckle seat 73, and the buckle seat 73 is provided with a sliding groove 72 extending in the radial direction of the pulsator 4 At least part of the buckle portion 70 is located in the sliding groove 72, so that the buckle portion 70 is guided by the sliding groove 72 and can only generate a telescopic displacement in the radial direction of the pulsator 4. The buckle base 73 and the pulsator shaft 6 are integrally arranged or fixedly connected, and can be connected by any one or a combination of the prior art, such as a clip connection, a threaded connection, a spline connection, and a screw connection.

In this embodiment, the buckle portion 73 includes a buckle rod 76 disposed through the sliding groove, and the end of the buckle rod 76 protrudes from the buckle seat 73; the opening of the buckle groove 71 is set toward the axial direction of the pulsator 4 The end of the buckle rod 76 protruding from the buckle seat 73 is at least partially coplanar with the buckle groove 71, so that the buckle rod 76 is moved from the opening into the buckle groove 71 under the action of a reset force.

In this embodiment, the buckle rod 76 is arranged horizontally, and both ends of the buckle rod 76 respectively pass through the sliding groove 72 on the opposite side of the buckle seat 73. The buckle groove 71 and the protruding ends of the buckle rod 76 on both sides are respectively The coplanar arrangement allows both ends of the buckle rod 76 to extend into the buckle groove 72 for buckle connection. In this embodiment, the interior of the buckle seat 73 is hollow, and the elastic member 75 is installed in the hollow portion of the buckle seat 73; preferably, in order to ensure that the elastic member 75 only expands and contracts along the radial direction of the pulsator 4, it can be mounted on the buckle seat 73. The hollow part is provided with a limiting rib for guiding the sliding of the elastic member 75; for example, the elastic member is set as a spring, and a limiting rib between the transmission and the spring center is provided along the spring axis to ensure that the spring is inconvenient in the axial direction and prevent the spring from generating a radial direction. Offset.

In this embodiment, the sliding groove 72 is composed of hollow grooves provided on the two side walls of the buckle seat. The hollow groove penetrates the side walls of the buckle seat, so that the buckle rod is installed in the hollow part of the buckle seat. The chute on the opposite side wall penetrates and is arranged. Preferably, the height of the chute and the diameter of the buckle rod are set to be as large as to ensure that the bayonet rod will not shift and can only move along the axial direction of the chute.

In this embodiment, the buckle portion 70 includes a button 74 that is plug-connected to the buckle seat 73; the button 74 is coaxially arranged with the elastic member 75, and one end of the buckle seat 73 extends into the elastic member 75 and/or the buckle. The rod 76 is connected. Preferably, one end of the button 74 extending into the buckle seat 73 is connected to the elastic member 75, and the buckle rod 76 passes through the button 74 and extends into one end of the buckle seat 73, so that the button 74 is connected to the buckle rod 76 and the elastic member 75. Connect at the same time. In this embodiment, the button 74 is a cylindrical structure coaxially arranged with the elastic member 75, the cylindrical button 74 is coaxially inserted into the through hole on the buckle seat 73, and the cylindrical button 74 protrudes from one end of the buckle seat 73. There is a ring of limiting ribs protruding and extending radially, and the outer diameter of the limiting ribs is larger than the aperture of the through hole, so that the limiting ribs and the buckle seat are limited in conflict and the protruding end of the button will not enter the mounting seat.

In this embodiment, the buckle groove 71 is provided on the outer periphery of the buckle seat 73, and the buckle groove 71 is in the shape of an arc that opens toward the center of the pulsator 4. Preferably, the buckle groove 71 has a certain extension length in a direction perpendicular to the telescopic movement direction of the buckle portion 73 to ensure the clamping and tightness between the buckle groove 71 and the protruding end of the buckle rod 76. At the same time, the center of the buckle rod 76 and the center of the buckle groove 71 are in the same plane, and at least part of the inner wall surface of the buckle groove 71 and the buckle rod 76 are arc surfaces with the same curvature to ensure that the buckle rod 76 and the buckle The buckle groove 71 is in surface contact to further improve the stability of the buckle.

In this embodiment, the gap between the buckle grooves 71 on both sides of the pulsator 4 can be used for the buckle seat 76 to be installed to ensure that the center of the buckle rod 76 and the center of the buckle groove 71 are coplanar.

In this embodiment, there is a gap between the opening of the buckle groove 71 and the outer wall of the pulsator shaft 6, and the gap distance is greater than the outer diameter of the buckle rod 76 to ensure that the buckle rod 76 enters the gap and then moves from the opening to the buckle groove 71 in.

In this embodiment, the first buckle portion and the second buckle portion on both sides of the pulsator shaft 6 are mounted on the same buckle seat 73, and the center of the buckle seat 73 is fixedly connected to the pulsator shaft 6. The buckling rods 76 of the two buckling parts 70 are in the same plane and are arranged line-symmetrically with respect to the pulsator shaft 6.

In this embodiment, one side of the pulsator 4 is a stirring surface for stirring clothes and/or water flow, and the other side is a mounting surface coaxially connected with the inner barrel shaft 6; the buckle groove 71 and the buckle portion 70 are both provided on the wave On the mounting surface side of the wheel 4, the pulsator 4 is provided with a hollow part 40 for the user to extend in and apply external force to the buckle 70; preferably, the hollow part 40 of the pulsator 4 is provided on the button 74 protruding from the mounting seat 73 Part of the above, or above the side.

In this embodiment, a detachable end cover 7 is installed on the stirring surface of the pulsator 4, and the end cover 7 covers at least the hollow part 40.

In this embodiment, the specific process of clamping and installing the pulsator 4 is as follows:

First, place the pulsator on the drive shaft and the buckle seat correspondingly, so that the hollow part of the pulsator corresponds to the button; then, insert a finger or a tool into the hollow part, press the button, and the buckle rod will approach the wave by external force. Move the wheel center direction; until the buckle rod is in the gap between the buckle groove and the pulsator shaft, the pulsator loses the support of the buckle rod and moves downwards, so that the buckle rod and the buckle groove are coplanar; then, place your finger or tool When the button is pulled out, the button loses external force, and the buckle rod resets and moves toward the outer circumference of the pulsator under the action of the elastic member until the buckle rod is locked into the buckle groove to realize the clamping and fixation between the pulsator and the pulsator shaft.

In this embodiment, the specific process of rapid disassembly of the pulsator 4 is as follows:

First, insert a finger or a tool into the hollow part, press the button, and the buckle bar will move closer to the center of the pulsator by external force; until the buckle bar is in the gap between the buckle groove and the pulsator shaft; lift the pulsator upwards, Realize the decomposition between the pulsator and the pulsator shaft, and achieve the rapid disassembly of the pulsator.

Example two

This embodiment introduces a pulsator installation structure, the pulsator is assembled on the pulsator shaft; the difference from the above embodiment is: the pulsator is provided with a buckle part, and the pulsator shaft is provided with a buckle groove; the buckle part receives When the external force produces telescopic displacement, after the external force is removed, the buckle part is reset to be locked and connected with the buckle groove (not specified in the drawing).

By changing the installation positions of the buckle portion and the buckle groove, the snap connection between the buckle portion and the buckle groove can also be used to achieve the effect of rapid assembly and disassembly between the pulsator and the pulsator shaft.

Example three

The difference between this embodiment and the above-mentioned embodiments is that the buckle part is composed of a claw that can produce elastic deformation by itself and expands and contracts in the radial direction of the pulsator, so that the buckle part is stretched and deformed when the external force is removed. The buckle part is reset to be locked and connected with the buckle groove, and the snap connection between the buckle part and the buckle groove can also be used to achieve the effect of rapid assembly and disassembly between the pulsator and the pulsator shaft (not shown in the figure) Specify).

Example four

This embodiment is based on the above-mentioned embodiment, and also has the following technical features: a detachable decorative cover is installed on the pulsator, the decorative cover and the pulsator form a cavity, and the buckle groove and the buckle portion are both provided in the cavity.

In this embodiment, the decorative cover is buckled on the pulsator, so that the buckle groove and the buckling part are all in the cavity after the decorative cover is buckled with the pulsator; the decorative cover is provided with a passage for the pulsator shaft to pass through. Hole to ensure that the pulsator shaft extends into the interior of the chamber and is connected to the pulsator via a buckle installation structure (not specified in the drawings).

By arranging the above-mentioned buckle knot in the cavity enclosed by the decorative cover, it is ensured that the buckle structure will not leak out, which not only improves the beauty of the washing machine, but also avoids the contact of clothing and thread scraps equal to the buckle structure , To avoid the occurrence of problems such as the failure of the buckle structure to be clamped by dirt, and the contamination of accumulated wire chips.

Example five

As shown in Figure 1, this embodiment introduces a washing machine, which includes a casing 1, an outer tub 2 is installed in the casing 1, an inner tub 3 is installed in the outer tub, a pulsator 4 is installed in the inner tub 3, and an outer tub A motor 5 is installed below the bottom, which passes through the pulsator shaft 6 of the outer barrel bottom and the inner barrel bottom in turn. The pulsator shaft, the outer barrel, the inner barrel, the pulsator and the motor are all coaxially arranged. The end of the pulsator shaft 6 that penetrates the inner tub 3 is connected to the motor 5, and the end that penetrates the inner tub 3 is connected to the pulsator 4 through the installation structure described in any of the above embodiments, so as to achieve the purpose of quick disassembly and assembly of the pulsator of the washing machine.

The above are only the preferred embodiments of the present invention, and do not limit the present invention in any form. Although the present invention has been disclosed as above in preferred embodiments, it is not intended to limit the present invention. Any technology familiar with this patent Without departing from the scope of the technical solution of the present invention, the personnel can use the technical content suggested above to make slight changes or modification into equivalent embodiments with equivalent changes, but any content that does not depart from the technical solution of the present invention is based on the technology of the present invention Essentially, any simple modifications, equivalent changes and modifications made to the above embodiments still fall within the scope of the present invention.

Claims

A wave wheel installation structure,

The pulsator is assembled on the pulsator shaft;

Its characteristics are:

The pulsator is provided with a snap part, and the pulsator shaft is provided with a snap groove;

Or, a buckle groove is provided on the pulsator, and a buckle part is provided on the pulsator shaft;

When the buckle part is subjected to an external force, a telescopic displacement and/or deformation is generated, and the buckle part is reset to be locked and connected with the buckle groove after the external force is removed.
The pulsator installation structure according to claim 1, wherein the opposite sides of the pulsator shaft are provided with protruding and telescopic buckle portions, and the buckle portions on both sides are respectively corresponding to the buckle grooves. Phase card and connection.
The pulsator mounting structure according to claim 2, wherein the buckle portion is connected with an elastic member extending in the radial direction of the pulsator and to the axis of the pulsator, and the extension end of the elastic member is connected to the pulsator shaft or the pulsator. Connected

Preferably, the buckle part is installed in the buckle seat, the buckle seat is provided with a sliding groove extending in the radial direction of the pulsator, and at least part of the buckle part is in the sliding groove.
The pulsator installation structure according to claim 3, wherein the buckle part comprises a buckle rod provided through the sliding groove, and the end of the buckle rod protrudes from the buckle seat;

The opening of the buckle groove is arranged toward the axis of the pulsator, and the end of the buckle rod protruding from the buckle seat is at least partially coplanar with the buckle groove;

Preferably, the buckle rod is arranged horizontally, the two ends of the buckle rod respectively pass through the sliding groove on the opposite side of the buckle seat, and the buckle groove and the protruding ends on both sides of the buckle rod are arranged coplanar respectively.
The pulsator installation structure according to claim 4, wherein the buckle portion includes a button that is plug-connected and connected to the buckle base; the button and the elastic member are coaxially arranged, one end of which extends into the buckle base and the elastic Piece and/or buckle rod connection;

Preferably, the button is a columnar structure coaxially arranged with the elastic member, the columnar button is coaxially inserted into the through hole on the buckle seat, and one end of the columnar button protruding from the buckle seat is provided with a circle of radially protruding extensions. Limit rib, the outer diameter of the limit rib is larger than the aperture of the through hole.
The pulsator mounting structure according to claim 4, wherein the opening of the buckle groove and the outer wall of the pulsator shaft are separated by a gap, and the gap distance is greater than the outer diameter of the buckle rod.
A pulsator installation structure according to any one of claims 1 to 6, wherein one side of the pulsator is a stirring surface for stirring clothes and/or water, and the other side is coaxially connected with the inner barrel shaft Mounting surface: The buckle groove and the buckle part are both provided on the mounting surface side of the pulsator, and the pulsator is provided with a hollow part for the user to reach in and apply external force to the buckle part;

Preferably, the hollow part of the pulsator is provided above or above the part of the button protruding from the mounting seat.
The pulsator mounting structure according to claim 7, wherein the stirring surface of the pulsator is equipped with a detachable end cover, and the end cover at least covers the hollow part.
A pulsator installation structure according to any one of claims 1 to 6, wherein a detachable decorative cover is installed on the pulsator, the decorative cover and the pulsator form a cavity, and the buckle groove and the buckle The parts are all located in the chamber.
A washing machine, characterized in that the pulsator is quickly detachably connected to the pulsator shaft via the mounting structure of any one of claims 1 to 9.