阅读说明：本技术 一种阻尼装置及安装有该阻尼装置的洗衣机 (Damping device and washing machine provided with same ) 是由 王世宇 朱国防 李文明 卢立群 张红伟 刘让雷 姜永富 于 2019-10-31 设计创作，主要内容包括：本发明公开了一种阻尼装置及安装有该阻尼装置的洗衣机,包括外壳；连接部,至少部分设置于所述外壳内部；支撑部,设置于所述外壳内部；弹性部,设置于所述连接部与所述支撑部之间；调节部,设置于所述支撑部远离所述弹性部的一侧,用于调节所述连接部与所述支撑部之间的距离。本发明所述一种阻尼装置及安装有该阻尼装置的洗衣机,所述阻尼装置通过在支撑部一侧设置能够调节支撑部与连接部之间距离的调节部,实现了压缩阻尼器中的弹簧,改变弹簧形变的行程需要的力矩,达到可调节力矩的效果,同时由于力矩可调,阻尼器的通用性也得到了提升,可以根据使用中对阻尼的要求,实现随时的调整。(The invention discloses a damping device and a washing machine provided with the same, comprising a shell; a connecting part at least partially arranged inside the shell; a support part disposed inside the housing; an elastic part arranged between the connecting part and the supporting part; the adjusting part is arranged on one side, far away from the elastic part, of the supporting part and used for adjusting the distance between the connecting part and the supporting part. According to the damping device and the washing machine provided with the damping device, the damping device is provided with the adjusting part capable of adjusting the distance between the supporting part and the connecting part on one side of the supporting part, so that the effect of compressing the spring in the damper and changing the moment required by the deformation stroke of the spring is achieved, meanwhile, as the moment is adjustable, the universality of the damper is improved, and the damping device can be adjusted at any time according to the requirement on damping in use.)

1. A damping device, characterized by: comprises that

A housing (1);

a connection part (2) at least partially arranged inside the housing (1);

a support part (3) provided inside the housing (1);

an elastic part (4) provided between the connection part (2) and the support part (3);

the adjusting part (5) is arranged on one side, far away from the elastic part (4), of the supporting part (3) and used for adjusting the distance between the connecting part (2) and the supporting part (3).

2. A damping device according to claim 1, characterised in that:

the shell (1) extends from one end to the other end, openings are formed in the two ends, and a cavity is formed inside the shell;

the connecting part (2) is at least partially arranged in an opening at one end of the shell (1);

the connecting part (2) is arranged around the central shaft of the shell (1) and rotates relative to the shell (1);

the adjusting part (5) is movably arranged in the opening at the other end of the shell (1) and is used for adjusting the position of the supporting part (3) between the two openings.

3. A damping device according to claim 2, characterised in that: also comprises

The guide structure is arranged at the matching position of the shell (1) and the supporting part (3) and is used for guiding the supporting part (3) to move between the two openings of the shell (1) along a fixed path;

preferably, the guide structure comprises a first runner (101), a second runner (301) and a guide portion (6);

the first sliding chute (101) is arranged on the inner wall of the shell (1);

the second sliding chute (301) is arranged on the supporting part (3) corresponding to the first sliding chute (101);

the guide portion (6) is respectively matched with the first sliding groove (101) and the second sliding groove (301).

4. A damping device according to claim 3, characterised in that:

one end of the elastic part (4) is connected with the connecting part (2);

the other end of the elastic part (4) is connected with the supporting part (3);

preferably, the elastic part (4) is a torsion spring.

5. A damping device according to any one of claims 1 to 4, characterised in that:

the adjusting part (5) and the supporting part (3) are of an integral structure.

6. A damping device according to any one of claims 1 to 4, characterised in that:

the connecting part (2) is provided with a first rotating shaft (201) which rotates relative to the supporting part (3);

the supporting part (3) is a hollow annular structure;

the first rotating shaft (201) sequentially penetrates through the elastic part (4) and the supporting part (3);

the adjusting part (5) is sleeved outside the first rotating shaft (201) and moves along the axial direction of the first rotating shaft (201).

7. A damping device according to claim 6, characterised in that:

the adjusting part (5) is sleeved outside the first rotating shaft (201) and is in rotating fit with the first rotating shaft (201);

preferably, the rotation fit of the adjusting part (5) and the first rotating shaft (201) is a threaded fit;

or the adjusting part (5) is sleeved outside the first rotating shaft (201) and is in sliding fit with the first rotating shaft (201);

preferably, the adjusting portion (5) and the supporting portion (3) are of an integral structure.

8. A damping device according to any one of claims 1 to 4, characterised in that:

the connecting part (2) is provided with a first rotating shaft (201) extending into the inner side of the elastic part (4);

the supporting part (3) is provided with a second rotating shaft (302) extending into the inner side of the elastic part (4);

an adjusting rod (303) is arranged on one side, away from the elastic part (4), of the supporting part (3);

the adjusting part (5) is sleeved outside the adjusting rod (303) and moves along the axial direction of the adjusting rod (303);

preferably, the adjusting part (5) is sleeved outside the adjusting rod (303) and is in rotating fit with the adjusting rod (303);

preferably, the rotation fit of the adjusting part (5) and the adjusting rod (303) is a threaded fit.

9. A damping device according to any one of claims 1 to 8, characterised in that: also comprises

The positioning hole (102) is arranged on the shell (1) and is matched with the adjusting part (5);

the positioning pin (103) is movably matched with the positioning hole (102) in a pluggable mode and is used for fixing the adjusting part (5);

preferably, the adjusting part (5) is provided with positioning structures (501) matched with the positioning holes (102) at intervals;

preferably, the positioning structure (501) is a groove-shaped structure surrounding the periphery of the adjusting part (5);

preferably, at least part of the outer edge of the positioning hole (102) protrudes out of the inner wall of the shell (1), extends towards one side of the inside of the shell (1), and is in interference fit with the outer wall of the adjusting part (5);

the positioning pin (103) penetrates through the positioning hole (102) and extends into the positioning structure (501), so that the shell (1) and the adjusting part (5) are fixed.

10. A washing machine comprises a door body and a tray seat, and is characterized in that:

a damping device having a damping means according to any one of claims 1 to 9;

the connecting part (2) is connected with the door body or the disc seat;

the shell (1) is connected with the disc seat or the door body.

Technical Field

The invention belongs to the technical field of household appliances, and particularly relates to a damping device and a washing machine provided with the same.

Background

At present, the damping torque of most of the upper cover dampers of the washing machines is fixed, the dampers can only be generally installed on the upper cover of one washing machine, the hovering angle of the upper cover can not meet the requirement due to different weights of the upper covers when the dampers are installed on the upper covers of other washing machines, the damping elastic force is reduced after the dampers are used for a long time, and the damping effect becomes worse and worse along with the lapse of the using time.

Chinese patent application No. CN201910759484.0 discloses a novel damper, which comprises: the fixing seat is provided with a mounting hole penetrating through the lower end face of the fixing seat along the upper end face of the fixing seat, and the lower end of the mounting hole is provided with a rear cover; the force reversing structure is used for converting the rotating torque into the linear torque and comprises an axial cam which is arranged in the mounting hole in an axial guiding mode and a rotating shaft which is matched with the axial cam, and the upper end of the rotating shaft extends out of the upper end of the fixed seat so as to be connected with the rotating body; the lower end of the rotating shaft is formed with a spiral convex tooth which is matched and arranged with a spiral tooth groove at the upper end of the axial cam; the linear damper module comprises a linear damper arranged in the mounting hole and a compression spring sleeved on the periphery of the linear damper, wherein the upper end and the lower end of the linear damper are respectively contacted with the lower end face of the axial cam and the upper end face of the rear cover, and the upper end and the lower end of the compression spring are respectively contacted with the lower end face of the axial cam and the upper end face of the rear cover.

Although the above-mentioned prior art proposes the structure of the damper and realizes that the reverse damping when the rotator (such as the flip cover) is opened can be effectively reduced, so as to save more labor for opening, it cannot solve the problem that the damping effect of the damper is reduced due to the reduction of the elasticity of the spring with the lapse of the use time.

The present invention has been made in view of this situation.

Disclosure of Invention

The technical problem underlying the present invention is to overcome the drawbacks of the prior art and to provide a damping device which overcomes or at least partially solves the above mentioned problems.

Another object of the present invention is to provide a washing machine mounted with the damping device.

In order to solve the technical problems, the invention adopts the technical scheme that: a damping device comprises

A housing;

a connecting part at least partially arranged inside the shell;

a support part arranged inside the housing together with the connection part;

an elastic part arranged between the connecting part and the supporting part;

the adjusting part is arranged on one side, far away from the elastic part, of the supporting part and used for adjusting the distance between the connecting part and the supporting part.

The shell extends from one end to the other end, openings are formed in the two ends of the shell, and a cavity is formed inside the shell;

the connecting part is at least partially arranged in an opening at one end of the shell;

the connecting part is arranged around the central shaft of the shell and rotates relative to the shell;

the adjusting part is movably arranged in the opening at the other end of the shell and is used for adjusting the position of the supporting part between the two openings.

In addition, also includes

The guide structure is arranged at the matching position of the shell and the supporting part and is used for guiding the movement of the supporting part between the two openings of the shell along a fixed path;

in one embodiment, a first chute is disposed on an inner wall of the housing;

the second sliding groove is arranged on the supporting part corresponding to the first sliding groove;

and the guide part is respectively matched with the first sliding groove and the second sliding groove, so that the sliding motion between the supporting part and the shell is ensured.

Furthermore, one end of the elastic part is fixedly connected with the connecting part;

the other end of the elastic part is fixedly connected with the supporting part;

in one embodiment, the resilient portion is a torsion spring.

Further, the adjusting portion and the supporting portion are of an integral structure.

Meanwhile, the connecting part is provided with a first rotating shaft which is arranged in a manner of rotating relative to the supporting part;

the supporting part is a hollow annular structure;

the first rotating shaft sequentially penetrates through the elastic part and the supporting part;

the adjusting part is sleeved outside the first rotating shaft and moves along the axial direction of the first rotating shaft.

Further, the adjusting part is sleeved outside the first rotating shaft and is in rotating fit with the first rotating shaft;

in one embodiment, the rotational engagement of the adjustment portion and the first shaft is a threaded engagement;

or the adjusting part is sleeved outside the first rotating shaft and is in sliding fit with the first rotating shaft;

in one embodiment, the adjustment portion is of unitary construction with the support portion.

The connecting part is provided with a first rotating shaft extending into the inner side of the elastic part;

the supporting part is provided with a second rotating shaft extending into the inner side of the elastic part;

an adjusting rod is arranged on one side of the supporting part, which is far away from the elastic part;

the adjusting part is sleeved outside the adjusting rod and moves along the axial direction of the adjusting rod.

In one embodiment, the adjusting part is sleeved outside the adjusting rod and is in rotating fit with the adjusting rod;

in one embodiment, the rotational engagement of the adjustment portion and the adjustment lever is a threaded engagement.

In addition, also comprises

The positioning hole is arranged on the shell and is matched with the adjusting part;

the positioning pin is movably matched with the positioning hole in a pluggable mode and used for fixing the adjusting part;

in one embodiment, the adjusting part is provided with positioning structures at intervals, and the positioning structures are matched with the positioning holes;

in one embodiment, the positioning structure is a groove-shaped structure surrounding the outer periphery of the adjustment portion.

Furthermore, at least part of the outer edge of the positioning hole protrudes out of the inner wall of the shell, extends towards one side of the inner part of the shell and is in interference fit with the outer wall of the adjusting part;

the locating pin passes the locating hole stretches into inside the location structure, realizes the shell with the fixed of regulating part, the regulating part is promoting the in-process of supporting part motion, because the locating hole with the regulating part is interference fit, consequently can produce certain resistance, and when the regulating part moves the location structure with when the locating hole cooperatees, then the locating hole with the regulating part is because the resistance that interference fit produced disappears to can produce a feedback, this feedback suggestion the regulating part has moved the position that can fix a position, will this moment the locating pin passes inside the location structure, realize the shell with the fixed of regulating part.

A washing machine comprises a door body and a disk seat,

a damping device having any of the above;

the connecting part is connected with the door body or the disc seat;

the shell is connected with the disc seat or the door body.

After adopting the technical scheme, compared with the prior art, the invention has the following beneficial effects: according to the damping device, the adjusting part capable of adjusting the distance between the supporting part and the connecting part is arranged on one side of the supporting part, so that the effect of compressing the spring in the damper and changing the moment required by the deformation stroke of the spring is achieved, the moment can be adjusted, meanwhile, as the moment is adjustable, the universality of the damper is improved, and the damping device can be adjusted at any time according to the requirement on damping in use.

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention, are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without limiting the invention to the right. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

In the drawings:

FIG. 1 is a first schematic axial view of the damping device of the present invention;

FIG. 2 is a second schematic axial view of the damping device of the present invention;

FIG. 3 is a first schematic cross-sectional view of the damping device of the present invention;

FIG. 4 is an enlarged view of part A of the damping device of the present invention;

FIG. 5 is a second schematic view in cross section of the damping device of the present invention;

FIG. 6 is a third schematic cross-sectional view of the damping device of the present invention;

figure 7 is a fourth schematic cross-sectional view of the damping device of the present invention.

In the figure: 1. a housing; 101. a first chute; 102. positioning holes; 103. positioning pins; 2. a connecting portion; 201. a first rotating shaft; 3. a support portion; 301. a second chute; 302. a second rotating shaft; 303. adjusting a rod; 4. an elastic portion; 5. an adjustment section; 501. A positioning structure; 6. a guide portion.

It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate it by a person skilled in the art with reference to specific embodiments.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the following embodiments are used for illustrating the present invention and are not intended 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., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 and fig. 2, which are schematic axial views of a damping device according to the present invention, the damping device according to the present invention is shown from two perspectives, and as can be seen from fig. 1 and fig. 2, the damping device according to the present invention includes a housing 1, a connecting portion 2 and a supporting portion 3 are disposed in the housing 1, the connecting portion 2 is partially disposed inside the housing 1, an elastic portion 4 is disposed between the connecting portion 2 and the supporting portion 3, a distance between the connecting portion 2 and the supporting portion 3 is adjusted by the adjusting portion 5, so as to adjust a moment of the elastic portion 4, thereby avoiding a problem that a damping force is reduced and a damping effect is reduced due to a reduction in the elastic force of the elastic portion 4 during a long-time use, wherein the housing 1 is a cylindrical hollow structure, and in an actual application, the housing 1 is further provided with a fixing portion, which may be a fixing structure connecting the housing 1 and an external, the shell 1 may be provided with two parallel planes in the axial direction of the shell 1, and the two parallel planes limit the degree of freedom between the shell 1 and an external structure, thereby fixing the shell 1.

Further, in fig. 1 and 2, the connecting portion 2 is provided with an adapter portion connected to an external component outside the housing 1, the adapter portion is of an axial structure, and two parallel planes are provided in an axial direction of the adapter portion, so that the connecting portion 2 can be matched with the external component through the adapter portion; further, the connecting part 2 is rotatably connected with the housing 1, and can be realized by arranging a rolling bearing or a sliding bearing; further, the device also comprises a guide structure which is arranged at the matching position of the shell 1 and the supporting part 3 and is used for guiding the movement of the supporting part 3 between the two openings of the shell 1 along a fixed path; preferably, the movement of the support part 3 between the two openings of the housing 1 is a movement in the direction of the central axis of the housing 1; further, the guide structure includes a first sliding groove 101, a second sliding groove 301 and a guide portion 6, specifically, the first sliding groove 101 is disposed inside the housing 1, the second sliding groove 301 is disposed on the support portion 3 corresponding to the first sliding groove 101, the guide portion 6 is disposed in cooperation with the first sliding groove 101 and the second sliding groove 301, and the support portion 3 and the housing 1 are in sliding connection under the action of the guide portion 6; adjusting the adjusting part 5, the adjusting part 5 pushes the supporting part 3 to move towards the side close to or far away from the connecting part 2, so that the moment of the elastic part 4 is adjusted, after the moment of the elastic part 4 is adjusted, the positioning pin 103 penetrates through the positioning hole 102 in the shell 1 to be matched with the positioning structure 501 on the adjusting part 5, so that the positioning of the adjusting part 5 is realized, the situation that the adjusting part 5 is dislocated in the using process to cause the moment change of the elastic part 4 and further cause the failure of a damping device is prevented, the positioning pin 103 can be in threaded fit with the positioning hole 102, and the positioning effect of the positioning pin 103 is enhanced.

Furthermore, the connecting portion 2 extends into the housing 1 from the side of the supporting portion 3, the housing 1 is rotatably connected with the connecting portion 2 and is connected with the connecting portion 2 through a rolling bearing or a sliding bearing, so that the connecting portion 2 is installed into the housing 1 from the side of the supporting portion 3, the connecting portion 2 receives the acting force of the elastic portion 4, when the adjusting portion 5 is adjusted, the elastic portion 4 is compressed from the side of the supporting portion 3 to the side of the connecting portion 2, and the matching position of the housing 1 and the connecting portion 2 is further provided with a step-like structure for preventing the connecting portion 2 from being ejected out of the housing 1.

Fig. 3 to 5 are schematic sectional views and partially enlarged views of the damping device of the present invention, and as can be seen from fig. 3 to 5, one end of the elastic part 4 is fixedly connected to the connecting part 2, the other end of the elastic part 4 is fixedly connected to the supporting part 3, and the supporting part 3 is slidably connected to the housing 1, i.e. cannot rotate, so that when the connecting part 2 and the housing 1 rotate relatively, the elastic part 4 is twisted under the action of the connecting part 2 and the supporting part 3.

Further, fig. 3 and 5 are two embodiments, in fig. 3, the connecting portion 2 and the supporting portion 3 are respectively provided with a first rotating shaft 201 and a second rotating shaft 302, the other surface of the supporting portion 3 opposite to the second rotating shaft 302 is provided with an adjusting rod 303, and the adjusting rod 303 is matched with the adjusting portion 5 to adjust the distance between the supporting portion 3 and the connecting portion 2.

Furthermore, at least two positioning structures 501 are arranged on the adjusting portion 5 at intervals, the positioning structures 501 are groove-shaped structures surrounding the outside of the adjusting portion 5, the positioning holes 102 are arranged on the inner wall of the housing 1 in a protruding mode to form a structure extending towards the inside of the housing 1, the protruding positioning holes 102 are matched with the positioning structures 501, a feedback value is provided in the process that the adjusting portion 5 pushes the supporting portion 3, the positioning structures 501 and the positioning holes 102 can feed back timely when reaching the matched position, and the insertion and positioning of the positioning pins 103 are facilitated.

Fig. 6 and 7 are schematic cross-sectional views of the damping device of the present invention, which show that when the adjusting portion 5 and the first rotating shaft 201 or the adjusting rod 303 are slidably disposed, a limiting structure is disposed between the adjusting portion 5 and the housing 1, the limiting structure is that a third sliding slot cooperating with the guiding portion 6 is disposed on the adjusting portion 5, the third sliding slot and the second sliding slot cooperate with the guiding portion 6 together to realize the sliding of the adjusting portion 5 in the housing 1, meanwhile, a positioning structure 501 cooperating with the positioning hole 102 is disposed on the adjusting portion 5, the positioning structure 501 is a plurality of hole-shaped structures disposed at intervals on the adjusting portion 5, and the positioning pin 103 passes through the positioning hole 102 and cooperates with the hole-shaped positioning structure 501 on the adjusting portion 5 to realize the fixing of the adjusting portion 5; further, when the adjusting portion 5 is slidably disposed on the first rotating shaft 201 or the adjusting lever 303, the adjusting portion 5 and the supporting portion 3 are integrally formed.

In summary, according to the damping device provided by the invention, the adjusting part 5 capable of adjusting the distance between the supporting part 3 and the connecting part 2 is arranged on one side of the supporting part 3, so that the effect of compressing the spring in the damper, changing the moment required by the deformation stroke of the spring and adjusting the moment of the elastic part 4 is achieved, and meanwhile, the universality of the damper is improved due to the adjustable moment.

The damping device of the present invention is applied to a specific embodiment as follows.

In a specific embodiment, as shown in fig. 1 and fig. 2, the damping device of the present invention includes a housing 1, and a connecting portion 2 and a supporting portion 3 disposed inside the housing 1, wherein an elastic portion 4 is disposed between the connecting portion 2 and the supporting portion 3, and an adjusting portion 5 is disposed on the other side of the supporting portion 3, which is matched with the elastic portion 4, for adjusting the distance between the connecting portion 2 and the supporting portion 3, in which the damping device of the present invention may be specifically applied, in which the housing 1 extends from one end to the other end, and both ends are provided with openings, and a cavity is formed inside; the connecting part 2 is at least partially arranged in an opening at one end of the shell 1; the connecting part 2 is arranged around the central shaft of the shell 1 and rotates relative to the shell 1; the adjusting portion 5 is movably arranged in an opening at the other end of the shell and used for adjusting the position of the supporting portion 3 between the two openings, the shell 1 and the connecting portion 2 are respectively connected with an external connecting component, and when relative rotation is generated between the shell 1 and the connecting portion 2, the elastic component 4 is twisted. In the damping device of the present invention, the housing 1 and the connecting portion 2 may be slidably connected, the housing 1 and the connecting portion 2 are respectively connected to an external component, and the elastic portion 4 is compressed when the housing 1 and the connecting portion 2 slide relative to each other.

In a specific embodiment, as shown in fig. 1 to 5, the damping device of the present invention includes a housing 1, and a connecting portion 2 and a supporting portion 3 disposed inside the housing 1, wherein an elastic portion 4 is disposed between the connecting portion 2 and the supporting portion 3, and an adjusting portion 5 is disposed on the other side of the supporting portion 3 cooperating with the elastic portion 4 for adjusting the distance between the connecting portion 2 and the supporting portion 3, wherein the connecting portion 2 is rotatably disposed relative to the housing 1 in the axial direction of the housing 1, the connecting portion 2 is rotatably coupled to the housing 1, and can be implemented by disposing a rolling bearing or a sliding bearing, and the supporting portion 3 is slidably disposed relative to the housing 1 in the axial direction of the housing 1; one end of the elastic part 4 is fixedly connected with the connecting part 2; the other end of the elastic part 4 is fixedly connected with the supporting part 3; preferably, the elastic portion 4 is a torsion spring; specifically, the support portion 3 slides with respect to the housing 1, and the connecting portion 2 can rotate with respect to the housing 1, and further, the connecting portion 2 and the support portion 3 can rotate relatively.

Further, the sliding between the supporting portion 3 and the housing 1 is realized by arranging a first sliding groove 101 on the inner wall of the housing 1, arranging a second sliding groove 301 corresponding to the first sliding groove 101 on the supporting portion 3, and arranging a guiding portion 6 matched with the first sliding groove 101 and the second sliding groove 301, wherein the supporting portion 3 and the housing 1 are in sliding connection under the action of the guiding portion 6; adjusting the adjusting part 5, the adjusting part 5 pushes the supporting part 3 to move towards the side close to or far away from the connecting part 2, so that the moment of the elastic part 4 is adjusted, and after the moment of the elastic part 4 is adjusted, the positioning pin 103 is used to penetrate through the positioning hole 102 on the shell 1 and is matched with the positioning structure 501 on the adjusting part 5, so that the positioning of the adjusting part 5 is realized, and the situation that the adjusting part 5 is dislocated in the using process, so that the moment of the elastic part 4 is changed, and further the damping device fails is generated.

In a specific embodiment, as shown in fig. 1 to 5, the damping device according to the present invention includes a housing 1, and a connecting portion 2 and a supporting portion 3 disposed inside the housing 1, wherein an elastic portion 4 is disposed between the connecting portion 2 and the supporting portion 3, and an adjusting portion 5 is disposed on the other side of the supporting portion 3 engaged with the elastic portion 4 for adjusting the distance between the connecting portion 2 and the supporting portion 3, wherein a positioning hole 102 is disposed on the housing 1, a positioning pin 103 is disposed corresponding to the positioning hole 102, and the positioning pin 103 is movably engaged with the positioning hole 102 and engaged with the adjusting portion 5 to fix the adjusting portion 5.

In a specific embodiment, as shown in fig. 1 to 4, in the damping device of the present invention, the connecting portion 2 is provided with a first rotating shaft 201, the supporting portion 3 is provided with a second rotating shaft 302, the first rotating shaft 201 and the second rotating shaft 302 respectively extend into the elastic portion 4, and the other surface of the supporting portion 3, which is matched with the elastic portion 4, is provided with an adjusting rod 303; the adjusting part 5 is sleeved outside the adjusting rod 303, and the rotating matching of the adjusting part 5 and the adjusting rod 303 is a threaded matching. Furthermore, the adjusting part 5 is provided with positioning structures 501 at intervals, which are matched with the positioning holes 102; the positioning structure 501 is a groove-shaped structure surrounding the periphery of the adjusting part 5.

Wherein, at least part of the outer edge of the positioning hole 102 protrudes out of the inner wall of the housing 1, and extends toward one side of the inside of the housing 1, and is in interference fit with the outer wall of the adjusting portion 5, the adjusting portion 5 slides on the adjusting rod 303 to adjust the supporting portion 3, during the process of pushing the supporting portion 3 to move, as the positioning hole 102 and the adjusting portion 5 are in interference fit, a certain resistance is generated, and when the adjusting portion 5 runs to the positioning structure 501 to be matched with the positioning hole 102, the resistance generated by the interference fit between the positioning hole 102 and the adjusting portion 5 disappears, and a feedback can be generated to prompt the adjusting portion 5 to run to a position where positioning is possible, and at this time, the positioning pin 103 passes through the positioning hole 102 and extends into the positioning structure 501, the fixing of the housing 1 to the adjustment part 5 is achieved.

In a specific embodiment, as shown in fig. 1, 2 and 5, the connecting portion 2 is provided with a first rotating shaft 201 rotatably disposed relative to the supporting portion 3; the support part 3 is a hollow annular structure; the first rotating shaft 201 sequentially penetrates through the elastic part 4 and the supporting part 3 and is matched with the adjusting part 5; preferably, the adjustment part 5 is of an integral structure with the support part 3. The adjusting part 5 is sleeved outside the first rotating shaft 201 and is in sliding fit with the first rotating shaft 201. The adjusting portion 5 is provided with positioning structures 501 at intervals, the positioning structures 501 are matched with the positioning holes 102, and the positioning structures 501 are groove-shaped structures surrounding the periphery of the adjusting portion 5.

Wherein, at least part of the outer edge of the positioning hole 102 protrudes from the inner wall of the housing 1, and extends toward one side of the inside of the housing 1, and is in interference fit with the outer wall of the adjusting portion 5, the adjusting portion 5 slides on the part of the first rotating shaft 201 protruding from the supporting portion 3, so as to adjust the supporting portion 3, during the process of pushing the supporting portion 3 to move, the positioning hole 102 and the adjusting portion 5 are in interference fit, so that a certain resistance is generated, and when the adjusting portion 5 runs to the positioning structure 501 to be matched with the positioning hole 102, the resistance generated by the interference fit between the positioning hole 102 and the adjusting portion 5 disappears, and a feedback can be generated, which prompts the adjusting portion 5 to run to a position where positioning is possible, at this time, the positioning pin 103 passes through the positioning hole 102, and the fixing structure extends into the positioning structure 501 to fix the housing 1 and the adjusting part 5.

In a specific embodiment, as shown in fig. 1, 2 and 5, the connecting portion 2 includes a first rotating shaft 201 rotatably disposed relative to the supporting portion 3; the support part 3 is a hollow annular structure; the first rotating shaft 201 sequentially penetrates through the elastic part 4 and the supporting part 3 and is matched with the adjusting part 5; preferably, the adjustment part 5 is of an integral structure with the support part 3. The adjusting part 5 is sleeved outside the first rotating shaft 201 and is in rotating fit with the first rotating shaft 201; further, the rotation fit of the adjusting portion 5 and the first rotating shaft 201 is a threaded fit. The adjusting portion 5 is provided with positioning structures 501 at intervals, the positioning structures 501 are matched with the positioning holes 102, and the positioning structures 501 are groove-shaped structures surrounding the periphery of the adjusting portion 5.

Wherein, at least part of the outer edge of the positioning hole 102 protrudes from the inner wall of the housing 1, and extends toward one side of the inside of the housing 1, and is in interference fit with the outer wall of the adjusting portion 5, the adjusting portion 5 rotates at the part of the first rotating shaft 201 protruding from the supporting portion 3, so as to adjust the supporting portion 3, during the process of pushing the supporting portion 3 to move, the positioning hole 102 and the adjusting portion 5 are in interference fit, so that a certain resistance is generated, and when the adjusting portion 5 runs to the positioning structure 501 to be matched with the positioning hole 102, the resistance generated by the interference fit between the positioning hole 102 and the adjusting portion 5 disappears, and a feedback can be generated, which prompts the adjusting portion 5 to run to a position where positioning is possible, at this time, the positioning pin 103 passes through the positioning hole 102, and the fixing structure extends into the positioning structure 501 to fix the housing 1 and the adjusting part 5.

In a specific embodiment, as shown in fig. 7, when the adjusting portion 5 and the first rotating shaft 201 or the adjusting rod 303 are slidably disposed, a limiting structure is disposed between the adjusting portion 5 and the housing 1, the limiting structure is that a third sliding groove cooperating with the guiding portion 6 is disposed on the adjusting portion 5, the third sliding groove and the second sliding groove cooperate with the guiding portion 6 together to realize sliding of the adjusting portion 5 in the housing 1, meanwhile, a positioning structure 501 cooperating with the positioning hole 102 is disposed on the adjusting portion 5, the positioning structure 501 is a plurality of hole-shaped structures disposed at intervals on the adjusting portion 5, and the positioning pin 103 passes through the positioning hole 102 and cooperates with the hole-shaped positioning structure 501 on the adjusting portion 5 to realize fixing of the adjusting portion 5.

In a specific embodiment, the washing machine of the invention comprises a door body and a disc seat, wherein the damping device is arranged between the door body and the disc seat; the tray seat can be a control tray seat for mounting a control panel or a base for mounting a door body, wherein the connecting part is connected with the door body or the tray seat; the outer shell is connected with the disc seat or the door body, and the mounting structure is in the prior art, so that the mounting structure is not shown in the drawing.

In the description provided herein, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.

Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features included in other embodiments, rather than others, combinations of features of different embodiments are also meant to be within the scope of the invention and form different embodiments. For example, in the above embodiments, those skilled in the art can use the combination according to the known technical solutions and technical problems to be solved by the present application.

Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.