阅读说明：本技术 一种洗衣机用减震装置及抽拉式洗衣机 (Damping device for washing machine and pull-out washing machine ) 是由 赵志强 许升 吕佩师 杨旭光 于 2018-08-20 设计创作，主要内容包括：本发明提供了一种洗衣机用减震装置及抽拉式洗衣机,洗衣机用减震装置,包括：柱塞,一端具有第一连接结构；套筒,内部具有一端开口的中空腔室,所述柱塞的另一端可相对滑动的套设在套筒的中空腔室内,套筒上与中空腔室的开口相反的一端具有第二连接结构；第一减震弹簧,套装在柱塞外部；第二减震弹簧,套装在套筒外部；以及滑套,可滑动的套装在柱塞/套筒外部,且位于第一减震弹簧和第二减震弹簧之间。本发明的减震装置采用支撑减震的方式,通过第一减震弹簧和第二减震弹簧的减震调节,保证减震效果,尤其适用于本发明的抽拉式洗衣机的减震。(The invention provides a damping device for a washing machine and a drawing type washing machine, wherein the damping device for the washing machine comprises: a plunger having a first connecting structure at one end; the sleeve is internally provided with a hollow cavity with one end opened, the other end of the plunger piston is sleeved in the hollow cavity of the sleeve in a relatively sliding manner, and a second connecting structure is arranged at one end, opposite to the opening of the hollow cavity, of the sleeve; the first damping spring is sleeved outside the plunger; the second damping spring is sleeved outside the sleeve; and the sliding sleeve is slidably sleeved outside the plunger/sleeve and is positioned between the first damping spring and the second damping spring. The damping device adopts a supporting damping mode, ensures the damping effect through the damping adjustment of the first damping spring and the second damping spring, and is particularly suitable for damping of the pull-out washing machine.)

1. A shock-absorbing device for a washing machine, comprising:

a plunger having a first connecting structure at one end;

the sleeve is internally provided with a hollow cavity with one end opened, the other end of the plunger piston is sleeved in the hollow cavity of the sleeve in a relatively sliding manner, and a second connecting structure is arranged at one end, opposite to the opening of the hollow cavity, of the sleeve;

the first damping spring is sleeved outside the plunger;

the second damping spring is sleeved outside the sleeve;

and the sliding sleeve is slidably sleeved outside the plunger/sleeve and is positioned between the first damping spring and the second damping spring.

2. The damping device as claimed in claim 1, wherein the plunger has a first bracket at one end adjacent to the first connecting structure, the sleeve has a second bracket at one end adjacent to the second connecting structure, the sliding sleeve has a circumferentially protruding limit protrusion, the first damping spring has one end abutting against the first bracket and the other end abutting against the limit protrusion, and the second damping spring has one end abutting against the second bracket and the other end abutting against the limit protrusion.

3. The damping device for the washing machine as claimed in claim 2, wherein the plunger has a position-limiting protrusion at an end thereof adjacent to the first connecting structure, the first bracket is an annular flange, and a position-limiting recess is formed at the center of the first bracket, and the position-limiting recess of the first bracket is matched with the position-limiting protrusion of the plunger to realize the position-limiting installation of the first bracket;

the second bracket is an annular flange formed by outwards protruding the periphery of one end of the sleeve, which is close to the second connecting structure.

4. A damper device for a washing machine according to claim 1, wherein the first damper spring and the second damper spring have different elastic coefficients;

preferably, the first connecting structure is connected with the supported damper, the second connecting structure is connected with the fixed support, and the elastic coefficient of the first damper spring is smaller than that of the second damper spring.

5. A shock absorbing device for a washing machine as claimed in claim 1, wherein a friction lining of the sleeve is disposed in the hollow chamber of the sleeve, and an end of the plunger is fitted into the hollow chamber of the sleeve to contact the friction lining of the sleeve.

6. A damper for a washing machine as claimed in claim 5, wherein said sleeve friction plate is an annular friction plate, and a plurality of annular friction plates are uniformly arranged in the hollow chamber of said sleeve in the axial direction thereof.

7. A shock-absorbing device for a washing machine as claimed in claim 1, wherein a friction plate of the sliding sleeve is provided in the sliding sleeve to be in contact with the outer wall of the plunger/sleeve.

8. The damping device for the washing machine as claimed in claim 1, wherein the first connecting structure is a connecting screw thread provided at an end of the plunger, the connecting screw thread cooperating with a nut to fixedly connect the plunger to the supported damping body;

the second connecting structure is a connecting thread arranged at one end of the sleeve, and the connecting thread is matched with the nut to fixedly connect the sleeve on the fixed support body.

9. A pull type washing machine having a shock-absorbing device for a washing machine according to any one of claims 1 to 8, comprising a housing having a receiving chamber therein, and a washing unit having an opening formed in a side wall of the housing; the washing unit is arranged in the accommodating cavity inside the shell and can be pushed in/pulled out from the opening of the shell;

the washing unit comprises a mounting frame and a washing barrel assembly arranged on the mounting frame, and the washing barrel assembly is supported in the mounting frame through a damping device.

10. The pull-out washing machine as claimed in claim 9, wherein the washing tub assembly comprises an outer tub and an inner tub rotatably disposed in the outer tub, the mounting frame comprises a base, and the outer tub is mounted on the base through a shock-absorbing device;

preferably, a plurality of damping lugs are uniformly arranged on the periphery of the outer barrel, and the damping device is arranged between the damping lugs and the base.

Technical Field

The invention relates to the technical field of clothes washing equipment, in particular to a damping device for a washing machine and a pull-out type washing machine.

Background

The washing machine, as a household appliance which is most widely used, has an important position in people's life, but with the development and progress of society, the use experience requirements of people for the washing machine are higher and higher, and the classification washing according to the types of clothes or different user requirements has gradually become a trend. However, because of the limitation of the space of the household and the related accessories of the washing machines, not all households can place the second or even the third washing machine, so how to improve the structure of the existing washing machine to better meet the classified washing requirements of users becomes a technical problem which needs to be solved urgently.

In order to solve the above problems, the prior application No. 201310290147.4, application date 2013-07-09, entitled chinese invention patent of a dual drum washing machine, discloses a dual drum washing machine, including: the washing machine comprises a washing machine frame body, a first outer cylinder and a second outer cylinder, wherein the first outer cylinder and the second outer cylinder are arranged in the washing machine frame body; the first outer cylinder and the second outer cylinder are connected into a whole through a connecting piece; the connecting piece is fixedly connected with the counterweight mounting column on the first outer cylinder and/or the second outer cylinder. The first outer cylinder and the second outer cylinder are connected into an integral structure through the connecting piece so as to effectively improve the compactness of the washing machine, and the connecting piece is fixedly installed and connected through the counterweight mounting column on the first outer cylinder or the second outer cylinder so as to improve the stability of the washing machine; a common balance weight is provided for the first outer cylinder and the second outer cylinder through the connecting piece; in addition, the first outer cylinder and the second outer cylinder use a common balance weight, and the first outer cylinder or the second outer cylinder of the washing machine is used as at least one part of the balance weight of the second outer cylinder or the first outer cylinder, so that the two drums of the washing machine have obvious damping effect, and the production cost is reduced.

The invention provides a double-drum washing machine, which solves the problem of classified washing of the washing machine, but is limited by a top-opening type mode of the pulsator washing machine for users who are more suitable for the pulsator washing machine, and the problem cannot be solved by vertically overlapping two pulsator washing machines.

In view of this, how to improve the structural style of the pulsator washing machine, reduce the occupied placing space, and how to realize a compound structure in which the pulsator washing machine is stacked up and down is the main technical problem to be solved by the present invention.

Disclosure of Invention

In order to solve the above problems, a first aspect of the present invention is to provide a damping device for a washing machine, which specifically adopts the following technical solutions:

a shock-absorbing device for a washing machine, comprising:

a plunger having a first connecting structure at one end;

the sleeve is internally provided with a hollow cavity with one end opened, the other end of the plunger piston is sleeved in the hollow cavity of the sleeve in a relatively sliding manner, and a second connecting structure is arranged at one end, opposite to the opening of the hollow cavity, of the sleeve;

the first damping spring is sleeved outside the plunger;

the second damping spring is sleeved outside the sleeve;

and the sliding sleeve is slidably sleeved outside the plunger/sleeve and is positioned between the first damping spring and the second damping spring.

Further, the plunger on be close to first connection structure's one end and set up first bracket, the sleeve on be close to second connection structure's one end and set up the second bracket, the sliding sleeve spacing convex part of circumference evagination, first damping spring's one end is only supported on first bracket, and the other end is only supported on spacing convex part, second damping spring's one end is only supported on the second bracket, the other end is only supported on spacing convex part.

Furthermore, one end of the plunger, which is close to the first connecting structure, is provided with a limiting bulge, the first bracket is an annular flange, the center of the first bracket is provided with a limiting groove, and the limiting groove of the first bracket is matched with the limiting bulge on the plunger to realize the limiting installation of the first bracket;

the second bracket is an annular flange formed by outwards protruding the periphery of one end of the sleeve, which is close to the second connecting structure.

Further, the first damping spring and the second damping spring have different elastic coefficients;

preferably, the first connecting structure is connected with the supported damper, the second connecting structure is connected with the fixed support, and the elastic coefficient of the first damper spring is smaller than that of the second damper spring.

Furthermore, a sleeve friction plate is arranged in the hollow cavity of the sleeve, and one end of the plunger is sleeved in the hollow cavity of the sleeve and keeps in contact with the sleeve friction plate.

Furthermore, the sleeve friction plate is an annular friction plate, and a plurality of annular friction plates are uniformly arranged in the hollow cavity of the sleeve along the axial direction of the hollow cavity.

Furthermore, a sliding sleeve friction plate which is in contact with the outer wall of the plunger/sleeve is arranged in the sliding sleeve.

Furthermore, the first connecting structure is a connecting thread arranged at one end part of the plunger, and the connecting thread is matched with a nut to fixedly connect the plunger to the supported damping body;

the second connecting structure is a connecting thread arranged at one end of the sleeve, and the connecting thread is matched with the nut to fixedly connect the sleeve on the fixed support body.

The second invention of the present invention is to provide a pull-out washing machine, specifically, the following technical solutions are adopted:

a pull-out washing machine comprises a shell and a washing unit, wherein an accommodating chamber is arranged in the shell, and an opening is formed in the side wall of one side of the shell; the washing unit is arranged in the accommodating cavity inside the shell and can be pushed in/pulled out from the opening of the shell;

the washing unit comprises a mounting rack and a washing barrel assembly arranged on the mounting rack, and the washing barrel assembly is supported in the mounting rack through a damping device; the damping device includes:

a plunger having a first connecting structure at one end;

the sleeve is internally provided with a hollow cavity with one end opened, the other end of the plunger piston is sleeved in the hollow cavity of the sleeve in a relatively sliding manner, and a second connecting structure is arranged at one end, opposite to the opening of the hollow cavity, of the sleeve;

the first damping spring is sleeved outside the plunger;

the second damping spring is sleeved outside the sleeve;

and the sliding sleeve is slidably sleeved outside the plunger/sleeve and is positioned between the first damping spring and the second damping spring.

Furthermore, the washing barrel assembly comprises an outer barrel and an inner barrel which is rotatably arranged in the outer barrel, the mounting frame comprises a base, and the outer barrel is mounted on the base through a damping device;

preferably, a plurality of damping lugs are uniformly arranged on the periphery of the outer barrel, and the damping device is arranged between the damping lugs and the base.

The damping device comprises a first damping spring and a second damping spring, wherein when small impact is received, the first damping spring is compressed to perform damping adjustment, and when large impact is received, the first damping spring and the second damping spring are compressed together to perform damping adjustment. The damping device adopts a supporting damping mode, and ensures the damping effect through the damping adjustment of the first damping spring and the second damping spring.

Drawings

Fig. 1 is a front view of a drawer type washing machine according to a first embodiment and a second embodiment of the present invention;

fig. 2 is a side view of a drawer type washing machine according to a first embodiment and a second embodiment of the present invention;

fig. 3 is a side view of the drawer type washing machine according to the first and second embodiments of the present invention (in a state where the washing unit is pulled open);

fig. 4 is a schematic perspective view of a drawer-type washing machine according to a first embodiment and a second embodiment of the present invention;

fig. 5 is a sectional view of a drawing type washing machine according to the first and second embodiments of the present invention, taken along the plane a-a in fig. 1;

fig. 6 is a sectional view of a drawing type washing machine according to the first and second embodiments of the present invention, taken along the plane B-B in fig. 1;

fig. 7 is a schematic perspective view of a drawer type washing machine according to the first and second embodiments of the present invention (with the top plate and the side plate of the housing removed and the washing unit closed);

fig. 8 is a schematic perspective view of a drawer type washing machine according to the first and second embodiments of the present invention (the top plate and the side plate of the housing are removed, and the washing unit is pulled open);

FIG. 9 is a perspective view of a shock absorber according to a third embodiment of the present invention;

FIG. 10 is a front view of a shock-absorbing device according to a third embodiment of the present invention;

FIG. 11 is a sectional view of a shock-absorbing device according to a third embodiment of the present invention taken along the plane C-C in FIG. 10 (first embodiment);

FIG. 12 is a sectional view of a damper device according to a third embodiment of the present invention taken along the plane C-C in FIG. 10 (second embodiment);

FIG. 13 is a plan view of a damper device according to a third embodiment of the present invention;

FIG. 14 is a schematic perspective view of a damper according to a fourth embodiment of the present invention;

FIG. 15 is a front view of a damper according to a fourth embodiment of the present invention;

FIG. 16 is a cross-sectional view of a four example embodiment of a shock absorbing device of the present invention taken along the plane D-D in FIG. 15 (embodiment one);

FIG. 17 is a sectional view of a damper device according to a fourth embodiment of the present invention taken along the D-D plane in FIG. 15 (embodiment II);

FIG. 18 is a schematic perspective view of a damper according to a fifth embodiment of the present invention;

FIG. 19 is a front view of a fifth embodiment of the shock absorbing device of the present invention;

FIG. 20 is a cross-sectional view taken along the plane E-E in FIG. 19 of a five shock absorbing device in accordance with an embodiment of the present invention;

FIG. 21 is a schematic perspective view of a damper according to a sixth embodiment of the present invention;

FIG. 22 is a front view of a shock absorbing device according to a sixth embodiment of the present invention;

FIG. 23 is a cross-sectional view taken along plane F-F of FIG. 22 of a six-mode vibration damping device in accordance with an embodiment of the present invention.

Detailed Description

The damping device for a washing machine and the pull-out type washing machine of the present invention will be described in detail with reference to the accompanying drawings: