CN216742583U - Self-adaptive damping shock absorber of drum washing machine - Google Patents

Abstract

The utility model discloses a self-adaptive damping shock absorber of a drum washing machine, which comprises a damping sleeve, a piston rod and a noise reduction structure, wherein the piston rod is slidably installed inside the damping sleeve, a damping cavity is installed at the top of the damping sleeve and is positioned outside the piston rod, supporting frames are symmetrically installed inside the damping cavity, damping fins are installed inside the supporting frames, a first annular air bag is installed inside the damping cavity and is positioned above the supporting frames, a second annular air bag is installed inside the damping cavity and is positioned below the supporting frames. According to the damping shock absorber, the first annular air bag, the second annular air bag, the damping sheet and the support frame are arranged, and when the shock absorber needs larger damping acting force in the using process of the damping shock absorber, the damping force can be freely adjusted through the matching work of all the structures, so that the practicability of the damping shock absorber is improved.

Description

Self-adaptive damping shock absorber of drum washing machine

Technical Field

The utility model relates to the technical field of damping shock absorbers, in particular to a self-adaptive damping shock absorber for a drum washing machine.

Background

The existing drum-type washing machine, the damper which is relatively mature in application at present is a friction plate type damping damper, a piston rod of the damper is provided with a friction plate, and sliding friction generated by the friction plate in a fixed stroke of the damper is utilized to provide damping acting force.

The existing damping shock absorber has the defects that:

patent document CN209587020U discloses a damping shock absorber, "the damping shock absorber includes an outer cylinder, an inner cylinder, a floating plug, a piston shaft and a piston. The inner cylinder is arranged in the outer cylinder along the axial direction of the outer cylinder, the first end of the inner cylinder is in sealing fit with the top end part of the outer cylinder, and the second end of the inner cylinder extends towards the bottom end part of the outer cylinder; the side wall of the inner barrel is provided with an airflow channel and a plurality of damping channels, and each damping channel is positioned on one side of the airflow channel close to the bottom end part and is distributed at intervals along the axial direction. The floating plug is slidably sleeved outside the inner cylinder to form an oil cavity and an air cavity; the air flow channel is communicated with the air cavity and the inner cylinder, and the damping channels are communicated with the oil cavity and the inner cylinder. The piston shaft is slidably disposed through the top end portion and penetrates the inner cylinder, and is in sealing engagement with the top end portion. The piston can be in sliding sealing fit in the inner cylinder and is connected with the piston shaft; when the piston slides to the first position, the piston shields or exposes the airflow channel and exposes each damping channel, and when the piston slides to the second position, the piston shields a part of each damping channel and exposes the airflow channel.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a damping damper for a self-adaptive drum washing machine, which solves the above problems.

In order to achieve the purpose, the utility model provides the following technical scheme: a damping shock absorber of a self-adaptive roller washing machine comprises a damping sleeve, a piston rod and a noise reduction structure, wherein the piston rod is slidably mounted in the damping sleeve;

the damping device comprises a damping sleeve, a piston rod, a support frame, a damping sheet, a first annular air bag, a second annular air bag and a third annular air bag, wherein the damping cavity is arranged at the top of the damping sleeve and is positioned outside the piston rod;

and the surface of the damping sleeve is sleeved with a noise reduction structure.

Preferably, the noise reduction structure comprises a noise reduction sleeve, a sound insulation felt and sound absorption cotton, the sound insulation felt is sleeved on the surface of the damping sleeve, the sound insulation felt is located below the damping cavity, the noise reduction sleeve is sleeved on the outer surface of the sound insulation felt, and the sound absorption cotton is filled in the noise reduction sleeve.

Preferably, the surfaces of the damping sheets close to each other are attached to the surface of the piston rod.

Preferably, the surface of first annular gasbag and second annular gasbag is installed communicating pipe through, the air inlet is installed to the tail end of communicating pipe.

Preferably, the top end of the piston rod extends to the outside of the damping cavity, the connector is installed on the top end of the piston rod, and the surface of the connector is sleeved with the silencing pad.

Preferably, the surface of the damping sleeve is symmetrically provided with vent holes in a penetrating manner.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, the first annular air bag, the second annular air bag, the damping sheet and the support frame are arranged, when the shock absorber needs a larger damping acting force, the communicating pipe pumps compressed air into the pipe through the air inlet, and then the first annular air bag and the second annular air bag are respectively inflated through the conveying action of the communicating pipe, so that the air bags start to expand, the expanded air bags can block the movement of the damping sheet and support and fix the damping sheet, so that the damping sheet provides the damping acting force for the moving piston rod, and when the shock absorber does not need a larger damping acting force, the air bags are deflated, so that the air bags stop providing the blocking and supporting actions for the damping sheet, and the damping sheet moves along with the piston rod, and only a smaller damping acting force is provided.

2. The noise reduction structure is provided with the noise reduction pad, the noise reduction structure, the noise reduction sleeve, the sound insulation felt and the sound absorption cotton, in the process of using the damping shock absorber, the noise generated inside the shock absorber is eliminated through the sound absorption cotton filled inside the noise reduction sleeve, the transmission of the internal noise can be isolated through the arrangement of the sound insulation felt, the generation of the noise is further reduced, the generation of the noise during the work of parts can be avoided through the arrangement of the noise reduction pad, and therefore the noise generated during the work of the damping shock absorber is weakened and eliminated through the noise reduction structure.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic front sectional view of the present invention;

FIG. 3 is a partial schematic view of the present invention;

fig. 4 is a schematic diagram of a noise reduction structure according to the present invention.

In the figure: 1. a damping sleeve; 2. a piston rod; 3. a damping chamber; 4. a connector; 5. a noise reduction structure; 501. a noise reduction sleeve; 502. a sound-deadening felt; 503. sound-absorbing cotton; 6. a damping fin; 7. a support frame; 8. a first annular bladder; 9. a second annular air bag; 10. a communicating pipe; 11. an air inlet; 12. a sound-deadening pad; 13. and (4) exhausting holes.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The first embodiment is as follows:

referring to fig. 1 and 2, a damping shock absorber of a self-adaptive drum washing machine includes a damping sleeve 1, a piston rod 2 and a noise reduction structure 5, wherein the piston rod 2 is slidably mounted inside the damping sleeve 1;

in particular, a working space is provided for the damping shock absorber by the damping sleeve 1 and a damping effect is provided for the damping shock absorber by the moving piston rod 2.

As shown in fig. 3, a self-adaptation drum type washing machine damping bumper shock absorber, damping chamber 3 is installed at the top of damping sleeve 1, and damping chamber 3 is located the outside of piston rod 2, support frame 7 is installed to the inside symmetry of damping chamber 3, the internally mounted of support frame 7 has damping fin 6, the internally mounted of damping chamber 3 has first annular gasbag 8, and first annular gasbag 8 is located the top of support frame 7, the internally mounted of damping chamber 3 has second annular gasbag 9, and second annular gasbag 9 is located the below of support frame 7, the surface that damping fin 6 is close to each other is laminated with the surface of piston rod 2, the surface of first annular gasbag 8 and second annular gasbag 9 runs through and installs communicating pipe 10, air inlet 11 is installed to the tail end of communicating pipe 10.

Specifically, use this damping shock absorber's in-process, when the shock absorber needs great damping effort, communicating pipe 10 lets in compressed air intraductally through air inlet 11, the transport effect of rethread communicating pipe 10, come to aerify first annular gasbag 8 and second annular gasbag 9 respectively, thereby make the gasbag begin to expand, the removal of damping fin 6 can be blockked to the gasbag of inflation, it is fixed to support damping fin 6, thereby make damping fin 6 come to provide damping effort to the piston rod 2 that removes, and when the shock absorber need not great damping effort, deflate the gasbag, make the gasbag stop to provide the effect that blocks and support damping fin 6, thereby make damping fin 6 move along with piston rod 2 together, only provide less damping effort, can freely adjust the damped size from this, thereby put forward the practicality of this damping shock absorber.

The surface of the damping sleeve 1 is symmetrically provided with vent holes 13 through it.

Specifically, the air flow generated during the operation of the damping shock absorber is conveniently led in and out through the exhaust hole 13.

Example two

As shown in fig. 4, a self-adaptation drum type washing machine damping bumper shock absorber, including falling the structure of making an uproar 5, damping sleeve 1's surface cup joints and falls the structure of making an uproar 5, fall the structure of making an uproar 5 including falling the cover 501 of making an uproar, deadening felt 502 and inhale sound cotton 503, damping sleeve 1's surface cup joints deadening felt 502, and deadening felt 502 is located the below in damping chamber 3, deadening felt 502's surface cup joints and falls the cover 501 of making an uproar, the inside packing that falls the cover 501 of making an uproar has inhales sound cotton 503, the top of piston rod 2 extends to the outside in damping chamber 3, connector 4 is installed on the top of piston rod 2, the surface cup joint of connector 4 has amortization pad 12.

Specifically, current damping bumper shock absorber all can produce great noise at the use, and at the in-process that uses this damping bumper shock absorber, inhale the noise that sound cotton 503 comes the inside production of bumper shock absorber through falling the inside packing of cover 501 of making an uproar and eliminate, setting through deadening felt 502, can completely cut off the propagation of internal noise, further noise reduction's production, and the production of part during operation noise can be avoided in the setting through amortization pad 12, weaken and eliminate the noise that damping bumper shock absorber during operation produced through structure 5 of making an uproar falls from this, thereby improve staff's use and experience.

The working principle is as follows: in the process of using this damping shock absorber, when the shock absorber needs great damping effort, communicating pipe 10 lets in compressed air intraductally through air inlet 11, the transport effect of rethread communicating pipe 10, come to aerify first annular gasbag 8 and second annular gasbag 9 respectively, thereby make the gasbag begin to expand, the removal of damping fin 6 can be blockked to the gasbag of inflation, it is fixed to support damping fin 6, thereby make damping fin 6 come to provide damping effort to the piston rod 2 of removal, and when the shock absorber need not great damping effort, deflate the gasbag, make the gasbag stop to provide the effect that blocks and support damping fin 6, thereby make damping fin 6 move along with piston rod 2 together, only provide less damping effort, from this can freely adjust damped size, thereby the practicality of this damping shock absorber is provided.

Present damping shock absorber all can produce great noise at the use, and at the in-process that uses this damping shock absorber, inhale the sound cotton 503 and eliminate the inside noise that produces of shock absorber through falling the inside packing of cover 501 of making an uproar, setting through deadening felt 502, can completely cut off the propagation of internal noise, further noise abatement's production, and the production of part during operation noise can be avoided in setting up through amortization pad 12, weaken and eliminate the noise that damping shock absorber during operation produced through structure 5 of making an uproar of falling from this, thereby improve staff's use and experience.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (6)

1. The utility model provides an adaptive drum type washing machine damping bumper shock absorber, includes damping sleeve (1), piston rod (2) and falls structure (5) of making an uproar, its characterized in that: a piston rod (2) is slidably mounted in the damping sleeve (1);

the damping device is characterized in that a damping cavity (3) is mounted at the top of the damping sleeve (1), the damping cavity (3) is located outside the piston rod (2), supporting frames (7) are symmetrically mounted inside the damping cavity (3), damping fins (6) are mounted inside the supporting frames (7), a first annular air bag (8) is mounted inside the damping cavity (3), the first annular air bag (8) is located above the supporting frames (7), a second annular air bag (9) is mounted inside the damping cavity (3), and the second annular air bag (9) is located below the supporting frames (7);

and a noise reduction structure (5) is sleeved on the surface of the damping sleeve (1).

2. An adaptive drum washing machine damping shock absorber according to claim 1, characterized in that: noise reduction structure (5) including making an uproar cover (501), deadening felt (502) and inhale sound cotton (503) fall, deadening felt (502) have been cup jointed on the surface of damping sleeve (1), and deadening felt (502) are located the below in damping chamber (3), the surface of deadening felt (502) has been cup jointed and has been fallen cover (501) of making an uproar, the inside packing that falls cover (501) of making an uproar has and inhales sound cotton (503).

3. An adaptive damping bumper of a drum washing machine according to claim 1, characterized in that: the surfaces of the damping fins (6) close to each other are attached to the surface of the piston rod (2).

4. An adaptive damping bumper of a drum washing machine according to claim 1, characterized in that: the surface of first annular gasbag (8) and second annular gasbag (9) is run through and is installed communicating pipe (10), air inlet (11) are installed to the tail end of communicating pipe (10).

5. An adaptive damping bumper of a drum washing machine according to claim 1, characterized in that: the top of piston rod (2) extends to the outside in damping chamber (3), connector (4) are installed on the top of piston rod (2), amortization pad (12) have been cup jointed on the surface of connector (4).

6. An adaptive damping bumper of a drum washing machine according to claim 1, characterized in that: the surface of the damping sleeve (1) is symmetrically provided with exhaust holes (13) in a penetrating manner.

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