CN215171784U - Buffer block of shock absorber - Google Patents

Abstract

The utility model provides a bumper shock absorber buffer block belongs to car technical field. It has solved the current not high problem of bumper shock absorber buffer block life. This bumper shock absorber buffer block includes the body and strengthens the seat, the body is hollow column with strengthening the seat, the mounting groove has been seted up on the top of body, the spacing groove has been seted up on the inside wall of mounting groove, integrative injection moulding has the beaded finish that aluminum alloy material constitutes in strengthening the seat, and form the bellying on strengthening the lateral wall of seat, strengthen the seat and go into the spacing groove through the bellying card and be connected, it upwards leans out gradually to form spigot surface one to strengthen the circumference inside wall that the seat is close to the bottom, the circumference inside wall that the body is close to the bottom leans out gradually downwards and forms spigot surface two. The shock absorber buffer block has the advantages of simple structure, high use reliability and capability of effectively prolonging the service life of the buffer block.

Description

Buffer block of shock absorber

Technical Field

The utility model belongs to the technical field of the car, a bumper shock absorber buffer block is related to.

Background

The automobile is one of the popular transportation means in the life nowadays, and a shock absorber is generally arranged on the automobile and used for preventing the automobile body from generating severe vibration when the automobile runs through a bumpy road; the existing shock absorber generally comprises a piston rod, a working cylinder barrel, a piston, an anti-rust cap, a plastic bearing and other structures, wherein all the structures are assembled together to form a complete shock absorber, one end of the shock absorber is connected with a suspension, the other end of the shock absorber is connected with an upper support through a nut on the piston rod, and the upper support is arranged on a vehicle body through a fastener; the piston rod can stretch and retract according to different road conditions and work, and the shock absorber plays a damping role when stretching the suspension by matching with the throttling action of each valve body in the shock absorber.

When the vehicle went on the comparatively jolt road of road conditions, the piston rod of bumper shock absorber can carry out piston motion in the work cylinder, with this cushion the automobile body, guarantee passenger's travelling comfort, generally still can install an annular buffer block on the piston rod of bumper shock absorber, the piston rod is when doing the piston motion, whole bumper shock absorber can produce comparatively strong impact load, this impact load can direct action in the junction of bumper shock absorber and automobile body, can make bumper shock absorber and body coupling take place not hard up in the past for a long time, lead to the bumper shock absorber to become invalid when serious, the buffer block of installing admittedly on the piston rod can support with the upper bracket when the piston rod during operation and lean on, can enough assist the bumper shock absorber together carry out the shock attenuation to the car, can offset the impact load that the bumper shock absorber during operation conducted to the upper bracket again.

In the prior art, the buffer block generally adopts the naphthalene diisocyanate material to constitute, have softer hardness, the impact load that the piston rod produced when piston motion by a wide margin probably can make the buffer block split, admittedly can be on the buffer block install a beaded finish that comprises polyformaldehyde (race steel) material, because naphthalene diisocyanate material is a foaming material, its structure leads to its unable built-in beaded finish, so the beaded finish can only overlap and establish outside the buffer block, but when the buffer block received compression arrival extreme condition, the beaded finish probably takes place the striking with some parts on bumper shock absorber or the automobile body, influence the driving, the travelling comfort of taking, probably lead to the beaded finish or take place the fracture with the mating piece that the beaded finish collided under the serious condition, influence the security of car to a certain extent.

Disclosure of Invention

The utility model aims at having the above-mentioned problem to current technique, provided a bumper shock absorber buffer block, the utility model aims to solve the technical problem that: how to solve the problem that the buffer block is easy to damage.

The purpose of the utility model can be realized by the following technical proposal: the utility model provides a bumper shock absorber buffer block, includes the body, the body is hollow column, its characterized in that, the enhancement seat is installed to body one end, it adopts flexible material to constitute to strengthen the seat, the beaded finish has in strengthening the seat, the beaded finish adopts rigid material to constitute.

The buffer block comprises a hollow columnar body, the body is sleeved on a piston rod of the shock absorber, when the piston rod piston moves, the buffer block can be abutted against the upper support, so that impact load generated when the piston rod moves is reduced, the shock absorber is ensured to be connected with an automobile body more stably, the top end of the buffer block is provided with the reinforcing seat, when the body is compressed, the body is abutted against the upper support through the reinforcing seat, the fracture caused by overlarge abutting force between the body and the upper support is avoided, the reinforcing seat sleeved outside the body is changed into the reinforcing seat provided with the reinforcing ring in one end of the body, the problem that the reinforcing ring is easy to collide with peripheral parts to be fractured when the body is compressed to a certain degree is avoided, the reinforcing seat is made of a soft material, the fracture caused when the body is abutted against the reinforcing seat can be avoided, the reinforcing ring is arranged in the reinforcing seat and is made of a rigid material, and the structural strength of the reinforcing seat can be improved, the phenomenon of cracking can not occur when the reinforcing seat is abutted against the upper support.

In foretell bumper shock absorber buffer block, strengthen the mode and this body coupling of seat through the joint, the beaded finish forms with the integrative injection moulding of enhancement seat.

Strengthen the seat and be connected through joint complex mode and buffer block top for it is removable between the two, when follow-up buffer block broke down, maintenance personal can dismantle it and only change partly spare part, and need not wholly change the buffer block, has improved economic benefits, and the beaded finish that sets up in the enhancement seat is installed in strengthening the seat through the integrated into one piece's of moulding plastics mode, has guaranteed the joint strength of beaded finish, guarantees to strengthen and trades in the course of the work reliability higher.

In foretell bumper shock absorber buffer block, strengthen the seat and be hollow column, just the mounting groove has been seted up on the top of body, the circumference inside wall of mounting groove inwards caves in and forms the spacing groove, it can carry out the bellying of chucking with the spacing groove cell wall to form on the circumference lateral wall of strengthening the seat bottom.

Strengthen the seat and be column and middle part opening, strengthen fixed back of seat and body joint and be connected together the cover and establish on the piston rod, the mounting groove is seted up on the body top, strengthen the seat bottom and install in the mounting groove through joint complex mode with the buffer block, the spacing groove has been seted up on the circumference inside wall of mounting groove, the bellying has been formed at the injection moulding in-process on the circumference lateral wall of strengthening the seat bottom, when installing, the bellying of strengthening the seat can carry out the chucking with the cell wall of spacing groove in the mounting groove, make strengthen the seat and install on the body can detachable and guarantee the stability of connecting simultaneously.

In the shock absorber buffer block, the circumferential inner side wall of the reinforcing seat close to the upper end surface is gradually inclined outwards from bottom to top to form a first guide surface.

The circumference inside wall that the enhancement seat is close to the up end leans out gradually from bottom to top and forms spigot surface one, and spigot surface one can be installed at the buffer block body and strengthen the seat and play the guide effect on the piston rod, and it is more convenient to guarantee to install, and the setting up of spigot surface one makes the atress area who strengthens the seat top more down, has exerted the effect of strengthening the inside beaded finish of seat to the at utmost.

In the shock absorber buffer block, the circumferential inner side wall of the body close to the lower end is gradually inclined outwards from top to bottom to form a second guide surface.

The body is close to circumference inside wall internal contraction of lower extreme and forms spigot surface two, and spigot surface two can be installed at the buffer block body and play the guide effect on the piston rod, guarantees to install more laborsavingly, and prevents that piston rod and body bottom opening part resistance from too big leading to the body impaired when the installation.

In the above-mentioned shock absorber cushion block, the reinforcing seat is made of a thermoplastic polyurethane elastic rubber material.

The reinforcing seat is made of thermoplastic polyamine acid elastic rubber material, and the thermoplastic polyamine acid elastic rubber material has the advantages of wear resistance, high hardness, high strength, good elasticity, low temperature resistance and the like, and ensures higher clamping force between the reinforcing seat and the body.

In the damper cushion block, the reinforcing ring is made of an aluminum alloy material.

The reinforcing ring is made of aluminum alloy materials, the aluminum alloy materials have high hardness and good ductility, the structural strength of the reinforcing seat can be guaranteed, and the reinforcing ring cannot break easily when the reinforcing seat is extruded.

Compared with the prior art, this bumper shock absorber buffer block has following advantage:

one, this bumper shock absorber buffer block is including being hollow columnar body and enhancement seat, strengthens the seat and installs on strengthening the seat top through the mode of joint, strengthens integrative injection moulding in the seat and has the beaded finish, and the body is when the compressive deformation, strengthens the seat and bears this partial pressure and can support with the upper bracket and lean on, has avoided originally establishing the easy fault phenomenon who bumps of beaded finish at this external cover, prevents that body, stiffened seat or peripheral fitting piece from breaking easily.

Two, strengthen the seat and adopt thermoplasticity polyamine acid elastic rubber material to constitute, have wear-resisting, hardness is big, intensity is high, elasticity is good, advantage such as low temperature resistant, has the bellying on its circumference lateral wall, and the body top has the mounting groove, has the spacing groove on the mounting groove circumference inside wall, strengthens the seat and can go into the spacing groove through the bellying card and install, both guarantees detachably, guarantees the stability after connecting again.

And thirdly, the inner side wall of the reinforcing seat close to the upper end surface forms a first guide surface, and the first guide surface can ensure that the reinforcing seat is sleeved on the piston rod more labor-saving.

Fourthly, the inner side wall of the body close to the lower end forms a second guide surface, and the second guide surface can ensure that the body is installed on the piston rod more labor-saving.

Fifthly, the reinforcing ring is made of aluminum alloy materials, and the aluminum alloy materials have high hardness and good ductility.

Drawings

Fig. 1 is a schematic structural view of the shock absorber buffer block.

Figure 2 is a cross-sectional view of the present shock absorber bumper.

Fig. 3 is a schematic structural view of the body of the shock absorber cushion block.

Figure 4 is a cross-sectional view of the body of the present shock absorber snubber block.

FIG. 5 is a schematic view of the structure of the reinforcement seat in the cushion block of the present shock absorber.

In the figure, 1, a body; 2. a reinforcement base; 2a, a reinforcing ring; 2b, a boss; 2c, a first guide surface; 3. mounting grooves; 3a, a limiting groove; 4. and a second guide surface.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in figures 1-5, the shock absorber buffer block comprises a columnar body 1 and a columnar reinforcing seat 2, both ends of the columnar body 1 and the columnar reinforcing seat 2 are arranged in a penetrating manner, an annular convex part 2b is formed on the circumferential outer side wall of the reinforcing seat 2 close to the bottom end, a reinforcing ring 2a made of aluminum alloy material is integrally formed in the reinforcing seat 2 in an injection molding manner, a mounting groove 3 is formed in the top end of the body 1, an annular limiting groove 3a is formed on the circumferential inner side wall of the mounting groove 3 in an inward concave manner, the reinforcing seat 2 is mounted at the top end of the body 1 through the mounting groove 3, the reinforcing seat 2 is tightly clamped with the groove wall of the limiting groove 3a through the convex part 2b, the reinforcing seat 2 is guaranteed to have certain stability when mounted at the top end of the body 1, the top end of the reinforcing seat 2 is abutted against the top surface of an upper support in the shock absorber, and the outer side wall is attached to the inner side wall of a plastic bearing mounted at the bottom of the upper support, the bumper shock absorber is carrying out the during operation, piston rod reciprocating piston motion makes body 1 constantly stretch out and draw back, install the enhancement seat 2 on 1 top of body can prevent that body 1 is flexible in-process direct and upper bracket, the collision of plastic bearing leads to body 1 to take place the fracture, and install and can also guarantee body 1 when compressed extremely when installing the enhancement seat 2 on 1 top of body, strengthen seat 2 can not collide with other spare parts in the bumper shock absorber, the damage probability of buffer block and enhancement seat has been reduced.

As shown in fig. 2, the inner side wall of the reinforcement seat 2 close to the lower end is inclined outwards gradually and upwards to form a first inclined guide surface 2c, the inner side wall of the body 1 close to the lower end is inclined outwards gradually and downwards to form a second inclined guide surface 4, the first guide surface 2c and the second guide surface 4 can ensure that the first guide surface and the second guide surface can perform a certain guiding function on the piston rod when the first guide surface and the second guide surface are installed on the piston rod, the body 1 and the reinforcement seat 2 are more labor-saving to install on the piston rod, in addition, the first guide surface 2c reduces the size of the top of the reinforcement seat 2, the size of the top surface of the reinforcement seat 2 is only slightly larger than that of the reinforcement ring 2a, and the reinforcement ring 2a can play its role to the utmost.

As shown in fig. 1-5, the body 1 is made of naphthalene diisocyanate, the reinforcing base 2 is made of thermoplastic polyamine acid elastic rubber material, the reinforcing base and the reinforcing base have good elasticity, the friction coefficient between the reinforcing base and the reinforcing base is high after clamping and matching, the connection stability can be guaranteed, the body 1 is indirectly abutted against the upper support through the reinforcing base 2, and the cracking of the body is effectively prevented.

In addition, the reinforcing ring 2a is made of aluminum alloy materials, the aluminum alloy has high strength, the ductility of the aluminum alloy is high when the aluminum alloy is stressed, and the phenomenon of fracture is not easy to occur.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although the terms body 1, reinforcement seat 2, reinforcement ring 2a, boss 2b, first guide surface 2c, mounting groove 3, limiting groove 3a, second guide surface 4, etc. are used more herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims (7)

1. The utility model provides a bumper shock absorber buffer block, includes body (1), the body is hollow column, its characterized in that, body (1) one end is installed and is strengthened seat (2), it adopts flexible material to constitute to strengthen seat (2), strengthening has beaded finish (2a) in seat (2), beaded finish (2a) adopt rigid material to constitute.

2. The shock absorber buffer block as claimed in claim 1, wherein the reinforcement base (2) is connected with the body (1) in a clamping manner, and the reinforcement ring (2a) and the reinforcement base (2) are formed by integral injection molding.

3. The shock absorber buffer block as claimed in claim 2, wherein the reinforcing seat (2) is hollow cylindrical, the top end of the body (1) is provided with a mounting groove (3), the circumferential inner side wall of the mounting groove (3) is recessed inwards to form a limiting groove (3a), and the circumferential outer side wall of the bottom end of the reinforcing seat (2) is provided with a protruding part (2b) which can be clamped with the groove wall of the limiting groove (3 a).

4. The shock absorber cushion block as claimed in any one of claims 1 to 3, wherein the circumferential inner side wall of the reinforcing seat (2) near the upper end surface is inclined gradually outward from bottom to top to form a guide surface one (2 c).

5. The shock absorber bumper block as claimed in claim 1 or 2, wherein the circumferential inner side wall of the body (1) near the lower end is gradually inclined outwards from top to bottom to form a second guide surface (4).

6. A shock absorber bumper according to any one of claims 1 to 3, wherein said reinforcing seat (2) is formed from a thermoplastic polyurethane elastomeric rubber material.

7. The shock absorber buffer block as claimed in claim 2, wherein the reinforcement ring (2a) is formed of an aluminum alloy material.

Images