CN218494075U - Low dynamic-static ratio rubber-plastic combined shock absorber for automobile - Google Patents

Abstract

The utility model discloses a low sound ratio rubber and plastic of car combines bumper shock absorber, including the bumper shock absorber body, the rubber pad down is equipped with to bumper shock absorber body upper end firm installation, lower rubber pad upper end fixed mounting has the shock attenuation jar, fixedly connected with buffer on the shock attenuation jar inner wall buffer is including solid fixed ring, slide bar, spacing spring and slip ring, gu fixed ring's outer wall fixed mounting is on the inner wall of shock attenuation jar, slide bar lower extreme fixed mounting is in solid fixed ring's upper end. This low dynamic-static ratio rubber and plastic of car combines bumper shock absorber through having set up buffer in the shock attenuation jar is inside, cushions the impact force, reduces the damage that the impact force brought, can carry on spacingly to the inside damping spring of damping device simultaneously, improves damping spring's life. The rubber pads are arranged at the upper end and the lower end of the damping cylinder, so that the internal device is protected, and meanwhile, the rubber pads also have a buffering effect, and the damping effect is increased.

Description

Low dynamic-static ratio rubber-plastic combined shock absorber for automobile

Technical Field

The utility model relates to an automobile shock attenuation technical field specifically is a low dynamic-static ratio rubber and plastic of car combines bumper shock absorber.

Background

In order to improve the running smoothness of the automobile, the shock absorber is installed in the suspension in parallel with the elastic element, and is used for damping vibration.

At present, current car all is furnished with the bumper shock absorber, and the bumper shock absorber uses damping spring to cushion the impact that the road surface was vibrated, nevertheless can continue reciprocating motion after the damping spring buffering, uses the back for a long time, and damping spring receives and warp easily after the extrusion, and damping spring after the deformation has great potential safety hazard when using, and damping spring's life is shorter simultaneously.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a low sound ratio rubber and plastic of car combines bumper shock absorber has solved the inside solitary damping spring that has only set up of current bumper shock absorber, problem that life is short.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a low dynamic-static ratio rubber and plastic of car combines bumper shock absorber, includes the bumper shock absorber body, the lower rubber pad is equipped with to bumper shock absorber body upper end rigid mounting, lower rubber pad upper end fixed mounting has the shock attenuation jar, the inside activity of shock attenuation jar is provided with the piston rod, fixedly connected with buffer on the shock attenuation jar inner wall, buffer includes:

the outer wall of the fixing ring is fixedly arranged on the inner wall of the damping cylinder;

the lower end of the sliding rod is fixedly arranged at the upper end of the fixing ring;

the limiting spring is sleeved with the sliding rod;

and the sliding ring is connected on the inner wall of the damping cylinder in a sliding manner.

Preferably, four sliding holes are formed in the sliding ring, a sliding rod penetrates through the inside of each sliding hole, the sliding rod is connected with the sliding ring in a sliding mode, the lower end of the sliding ring is fixedly connected with a limiting spring, the lower end of the limiting spring is fixedly connected with a fixing ring, a fixing block is arranged at the upper end of the sliding ring, and the side wall of the fixing block is fixedly connected with the inner wall of the damping cylinder.

Preferably, fixed mounting has damping device on the piston rod, damping device is including extrusion ring, snap ring and damping spring, extrusion ring and piston rod outer wall fixed connection, the snap ring sets up the lower extreme at the extrusion ring, snap ring and piston rod outer wall fixed connection, damping spring upper end and snap ring fixed connection, the damping spring lower extreme and lower rubber pad fixed connection, damping spring cup joints with the piston rod.

Preferably, the upper end of the damping cylinder is fixedly connected with an upper rubber pad, and a piston rod penetrates through the middle of the upper rubber pad and is in sliding connection with the piston rod.

Preferably, the upper end of the piston rod is fixedly connected with a connecting disc, a threaded hole is formed in the top of the connecting disc, and a stud bolt is connected to the inner thread of the threaded hole.

Preferably, the threaded holes are provided with four groups and are arranged on the connecting disc in a circular array.

(III) advantageous effects

The utility model provides a low sound ratio rubber and plastic of car combines bumper shock absorber. The method has the following beneficial effects:

(1) This low sound of car compares rubber and plastic and combines bumper shock absorber, through having set up buffer in the shock attenuation jar inside, when the piston rod received the impact force, fixed extrusion ring can the lapse and contact with the slip ring on the outer wall, cushions the impact force at the spacing spring that the slip ring lower extreme set up, reduces the damage that the impact force brought, can carry on spacingly to the damping spring of damping device inside simultaneously, improves damping spring's life.

(2) This low dynamic-static ratio rubber and plastic of car combines bumper shock absorber has set up the rubber pad through the last lower extreme of shock attenuation jar, and the effectual device to inside is protected, and the rubber pad also has the cushioning effect simultaneously, increases the shock attenuation effect.

Drawings

Fig. 1 is a schematic view of the overall three-dimensional structure of the present invention;

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

fig. 3 is a schematic three-dimensional structure view of the sliding ring of the present invention;

fig. 4 is a schematic structural view of the extrusion ring of the present invention.

In the figure: 1. a damper body; 2. a rubber pad is arranged; 3. a damping cylinder; 301. a fixed block; 4. a piston rod; 5. a buffer device; 501. a fixing ring; 502. a slide bar; 503. a limiting spring; 504. a slip ring; 5041. a slide hole; 6. a damping device; 601. an extrusion ring; 602. a snap ring; 603. a damping spring; 7. a rubber pad is arranged; 8. a connecting disc; 801. a threaded hole; 9. a stud bolt.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a low dynamic-static ratio rubber and plastic combination bumper shock absorber of car, including bumper shock absorber body 1, 1 upper end of bumper shock absorber body is installed down rubber pad 2 admittedly, 2 upper ends fixed mounting of lower rubber pad have a damping cylinder 3, the inside activity of damping cylinder 3 is provided with piston rod 4, fixedly connected with buffer 5 on the 3 inner walls of damping cylinder, buffer 5 is including solid fixed ring 501, gu fixed ring 501's outer wall fixed mounting is on damping cylinder 3's inner wall, gu fixed ring 501 upper end fixed mounting has slide bar 502, spacing spring 503 has been cup jointed on the slide bar 502 outer wall, spacing spring 503 upper end and slide ring 504 fixed connection, slide ring 504 is sliding connection on damping cylinder 3 inner walls.

Particularly, the utility model discloses technical scheme's buffer 5 is including solid fixed ring 501, slide bar 502, spacing spring 503 and slip ring 504, and when slip ring 504 slided downwards, extrudeed spacing spring 503, makes spacing spring 503 cushion the impact force.

The utility model discloses an in the embodiment, the inside arc inclined plane of having seted up of slip ring 504, the one end that extrusion ring 601 is close to slip ring 504 also sets up to outer arc inclined plane, is parallel to each other with the looks of slip ring 504, and slide bar 502 is provided with four groups, carries out sliding connection in slide opening 5041 respectively, and the round hole has also been seted up at solid fixed ring 501 middle part, and piston rod 4 slides from top to bottom in the round hole.

In this embodiment, four sliding holes 5041 are formed in the sliding ring 504, a sliding rod 502 penetrates through the sliding holes 5041, the sliding rod 502 is slidably connected with the sliding ring 504, the lower end of the sliding ring 504 is fixedly connected with a limiting spring 503, the lower end of the limiting spring 503 is fixedly connected with a fixing ring 501, a fixing block 301 is arranged at the upper end of the sliding ring 504, the side wall of the fixing block 301 is fixedly connected with the inner wall of the damping cylinder 3, a damping device 6 is fixedly mounted on the piston rod 4, the damping device 6 comprises a pressing ring 601, a clamping ring 602 and a damping spring 603, the pressing ring 601 is fixedly connected with the outer wall of the piston rod 4, the clamping ring 602 is arranged at the lower end of the pressing ring 601, the clamping ring 602 is fixedly connected with the outer wall of the piston rod 4, the upper end of the damping spring 603 is fixedly connected with the clamping ring 602, the lower end of the damping spring 603 is fixedly connected with a lower rubber pad 2, the damping spring 603 is sleeved with the piston rod 4, the upper end of the damping spring 3 is fixedly connected with an upper rubber pad 7, the upper end of the damping cylinder 7, the upper end of the upper rubber pad 4 penetrates through and is slidably connected with the piston rod 4, a connecting pad 8 is connected with the upper end of the piston rod 4, a connecting disc 8 is arranged at the top of the connecting disc 8, threaded hole, four threaded holes 801 are formed in a threaded hole array-shaped double-end of the connecting disc 801, four threaded hole 801, and four threaded holes 801 are formed in a double-head-shaped array of the threaded hole 801, and arranged on the connecting disc 8.

In order to prevent the slide ring 504 from being separated from the slide rod 502 due to excessive upward sliding of the slide ring 504 by the elasticity of the stopper spring 503, a fixed block 301 is provided at the upper end of the slide ring 504 to limit the range of the slide ring 504 to be raised, thereby stopping the entire damper 5.

The utility model discloses an among the embodiment, for the convenience carry out better protection to holistic equipment, set up lower rubber pad 2 and last rubber pad 7 at the upper and lower both ends of damper cylinder 3, have certain pliability, prevent that piston rod 4 from sliding from top to bottom for a long time, the friction causes the damage, protects 3 internals of damper cylinder and piston rod 4.

When the device works (or is used), when the device is impacted, firstly, the piston rod 4 slides downwards, meanwhile, the clamping ring 602 on the piston rod 4 can extrude the damping spring 603 arranged at the lower end, so that the damping spring 603 buffers the impact force, the damage of the impact force to the piston rod 4 is reduced, meanwhile, the extrusion ring 601 arranged on the piston rod 4 can also extrude downwards, when the extrusion ring is extruded downwards, the inclined surface of the extrusion ring 601 can be contacted with the inclined surface of the sliding ring 504, the sliding ring 504 pressurizes downwards, the sliding ring 504 extrudes the lower end limiting spring 503, the received extrusion force is buffered through the limiting spring 503, the buffering effect of the impact force is improved, the limiting spring 503 elastically supports the sliding ring 504 upwards, the sliding ring 504 supports the extrusion ring 601, the up-and-down reciprocating motion of the piston rod 4 is reduced, and the service life of the lower end damping spring 603 is prolonged.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a low dynamic-static ratio rubber and plastic of car combines bumper shock absorber, includes bumper shock absorber body (1), lower rubber pad (2) are installed to bumper shock absorber body (1) upper end rigid mount, lower rubber pad (2) upper end fixed mounting has shock attenuation jar (3), shock attenuation jar (3) inside activity is provided with piston rod (4), its characterized in that: fixedly connected with buffer (5) on shock attenuation cylinder (3) inner wall, buffer (5) include:

the outer wall of the fixing ring (501) is fixedly arranged on the inner wall of the damping cylinder (3);

the lower end of the sliding rod (502) is fixedly arranged at the upper end of the fixing ring (501);

the limiting spring (503), the limiting spring (503) is sleeved with the sliding rod (502);

a sliding ring (504), the sliding ring (504) being slidably connected on the inner wall of the damping cylinder (3).

2. The rubber-plastic combined shock absorber with low dynamic-static ratio for the automobile as claimed in claim 1, wherein: four slide holes (5041) have been seted up on sliding ring (504), slide bar (502) have been run through to slide hole (5041) inside, slide bar (502) and sliding ring (504) sliding connection, sliding ring (504) lower extreme and spacing spring (503) fixed connection, spacing spring (503) lower extreme and solid fixed ring (501) fixed connection, the upper end of sliding ring (504) is provided with fixed block (301), the lateral wall and the shock attenuation jar (3) inner wall fixed connection of fixed block (301).

3. The rubber-plastic combined shock absorber with low dynamic-static ratio for the automobile as claimed in claim 1, wherein: fixed mounting has damping device (6) on piston rod (4), damping device (6) are including extrusion ring (601), snap ring (602) and damping spring (603), extrusion ring (601) and piston rod (4) outer wall fixed connection, snap ring (602) set up the lower extreme at extrusion ring (601), snap ring (602) and piston rod (4) outer wall fixed connection, damping spring (603) upper end and snap ring (602) fixed connection, damping spring (603) lower extreme and lower rubber pad (2) fixed connection, damping spring (603) cup joint with piston rod (4).

4. The rubber-plastic combined shock absorber with low dynamic-static ratio for the automobile as claimed in claim 1, wherein: the upper end of the damping cylinder (3) is fixedly connected with an upper rubber pad (7), and a piston rod (4) penetrates through the middle of the upper rubber pad (7) and is in sliding connection with the piston rod (4).

5. The rubber-plastic combined shock absorber with low dynamic-static ratio for the automobile as claimed in claim 1, wherein: the piston rod (4) upper end fixedly connected with connection pad (8), screw hole (801) is seted up at connection pad (8) top, screw hole (801) inside threaded connection has stud (9).

6. The rubber-plastic combined shock absorber with low dynamic-static ratio for the automobile as claimed in claim 5, wherein: the threaded holes (801) are provided with four groups and are arranged on the connecting disc (8) in a circular array shape.

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