CN218971728U - Buffer block structure - Google Patents

Abstract

The utility model discloses a buffer block structure, which comprises a buffer block body and a piston rod, wherein the buffer block body comprises a main body part and an external clamping convex edge, a through mounting groove is formed in the center of the main body part along the extending direction of the axis of the main body part, and the buffer block body is sleeved on the piston rod through the mounting groove; the inner wall of the top end of the main body part is provided with an annular enclasping structure, and the annular enclasping structure and the main body part are wrapped by the clamping convex edge. The inner diameter of the annular holding structure is in interference fit with the outer diameter of the piston rod. The top end of the main body is provided with three vent holes which are uniformly distributed on the top end of the main body. On the basis of the buckle, the utility model also adds a unique annular holding structure to provide noise protection for the anti-collision block. When the anti-collision block has the free falling condition, the annular holding structure in interference fit with the piston rod can provide pulling-off force which is three times greater than the self weight of the buffer block, so that the impact force is effectively reduced, namely abnormal sound can be effectively reduced.

Description

Buffer block structure

Technical Field

The utility model belongs to the technical field of automobile shock absorber parts, and particularly relates to a buffer block structure.

Background

With the development of the modern car industry, vehicle-mounted vibration dampers are also constantly changing. In the aspect of using the damper buffer block, the damper buffer block is required to be capable of effectively reducing the impact between a vehicle body and a tire, protecting the damper and a suspension system, improving the driving comfort and reducing the noise in the driving process. Most buffer block structures in the market at present adopt outside second circle recess and go up the buckle formula design of connecting assembly lower extreme boss, and buffer block hole and piston rod are clearance fit, are in order to avoid the friction abnormal sound because of buffer block and piston rod relative motion produces.

The inventor finds that in the practical use process, at least the following technical problems exist in the prior art:

the abnormal sound generated by the relative motion of the buffer block and the piston rod is reduced through the buckle, and although the abnormal sound is feasible, the time of the buckle which can be used is shorter and the durability is less because of the structure of the buckle. In the later stage, once the buckle structure fails, the shock absorber can drive the buffer block to do free falling motion in the reciprocating motion process, a large amount of impact abnormal sound is generated, and the shock absorber has negative influence on a vehicle owner or a vehicle.

Disclosure of Invention

Aiming at the problem that a buckle structure in the prior art is easy to fail and a buffer block generates abnormal sound, the utility model provides a buffer block structure, which aims at: before and after the buckle structure fails, abnormal sound protection is provided for the buffer block.

The technical scheme adopted by the utility model for achieving the purpose is as follows: the buffer block structure comprises a buffer block body and a piston rod, wherein the buffer block body comprises a main body part and an external clamping convex edge, a through mounting groove is formed in the center of the main body part along the extending direction of the axis of the main body part, and the buffer block body is sleeved on the piston rod through the mounting groove; the inner wall of the top end of the main body part is provided with an annular enclasping structure, and the annular enclasping structure and the main body part are wrapped by clamping convex edges.

The further preferable technical scheme is as follows: the inner diameter of the annular holding structure is in interference fit with the outer diameter of the piston rod.

The further preferable technical scheme is as follows: the top end of the main body is provided with three vent holes which are uniformly distributed on the top end of the main body.

The further preferable technical scheme is as follows: the convex edge top of joint is provided with the air vent, the air vent sets up with the air vent cooperation.

The further preferable technical scheme is as follows: the convex edge of joint is from top to bottom's direction, and the biggest external diameter of convex edge reduces gradually.

The further preferable technical scheme is as follows: the outer wall structure of the main body part is the same as the outer wall structure of the clamping convex edge, and the outer wall size of the main body part is adaptive to the inner wall size of the clamping convex edge.

The further preferable technical scheme is as follows: the outer wall of the main body part is radially and uniformly provided with a plurality of bulges, and the outer wall size of the main body part is matched with the inner wall size of the clamping convex edge.

The further preferable technical scheme is as follows: the inner wall of the main body part is cylindrical.

The further preferable technical scheme is as follows: the main body part is integrally formed.

The further preferable technical scheme is as follows: the clamping convex edge and the annular enclasping structure are made of polyurethane.

Compared with the prior art, the technical scheme of the utility model has the following beneficial effects:

1. the utility model uses the traditional buckle type structure anti-collision foundation, but on the buckle foundation, the utility model also adds a unique annular holding structure to provide anti-noise guarantee for the anti-collision block. When the anti-collision block has the free falling condition, the annular holding structure in interference fit with the piston rod can provide pulling-off force which is three times greater than the self weight of the buffer block, so that the impact force is effectively reduced, namely abnormal sound can be effectively reduced. And because the annular enclasping structure is increased, the stress received by the buckle structure can be obviously reduced, so that the service life of the buckle structure can be effectively prolonged, and the effect of dual abnormal sound prevention is achieved.

2. In order to bring more effective abnormal sound prevention effect, the utility model creatively arranges the vent holes and the exhaust grooves on the main body part and the clamping convex edges, generates air between the anti-collision structure and the shock absorber in the driving process, and can cause abnormal sound continuously due to the fact that air flow is blocked and difficult to be discharged along with the movement of the shock absorber and the anti-collision block. And added air vent and exhaust groove, can make it constitute the exhaust system of buffer block when compression state, effectively prevent to produce abnormal sound because of air compression, the discharge is untimely, influences driving experience.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is an installation schematic view of a buffer block structure of the present utility model.

Fig. 2 is a schematic structural view of a buffer block structure according to the present utility model.

FIG. 3 is a top view of a cushion block structure according to the present utility model.

The marks in the figure are respectively: the buffer block comprises a buffer block body 1, a piston rod 2, a main body 3, a clamping convex edge 4, a mounting groove 5, a ring-shaped holding structure 6, a vent hole 7 and an exhaust groove 8.

Detailed Description

To make the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions in the embodiments of the present utility model will be clearly and completely described below, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model. Accordingly, the detailed description of the embodiments of the utility model provided below is not intended to limit the scope of the utility model as claimed, but is merely representative of selected embodiments of the utility model.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus, once an item is defined in one figure, it may not be further defined and explained in the following figures.

Example 1:

as shown in fig. 1, a buffer block structure is provided, which comprises a buffer block body 1 and a piston rod 2, wherein the buffer block body 2 comprises a main body part 3 and an external clamping convex edge 4, a through mounting groove 5 is formed in the center of the main body part 3 along the extending direction of the axis of the main body part 3, and the buffer block body 1 is sleeved on the piston rod 2 through the mounting groove 5; the inner wall at the top end of the main body part 3 is provided with an annular enclasping structure 6, the annular enclasping structure 6 and the main body part 3 are wrapped by the clamping convex edge 4, and the inner diameter of the annular enclasping structure 6 is in interference fit with the outer diameter of the piston rod 2.

The utility model adopts the traditional buckle type structure anti-collision foundation, but on the buckle foundation, the utility model also adds a unique annular holding structure 6 to provide anti-noise guarantee for the anti-collision block. When the anti-collision block has the free falling condition, the annular enclasping structure 6 in interference fit with the piston rod 2 can provide pulling-out force which is three times greater than the self weight of the buffer block, so that the impact force is effectively reduced, namely abnormal sound can be effectively reduced. And because the annular holding structure 6 is increased, the stress born by the buckle structure can be obviously reduced, so that the service life of the buckle structure can be effectively prolonged, and the effect of dual abnormal sound prevention is achieved.

As shown in fig. 3, the top end of the main body portion 3 is provided with three ventilation holes 7, the ventilation holes 7 are uniformly distributed on the top end of the main body portion 3, the top of the clamping convex edge is provided with an exhaust groove 8, and the exhaust groove 8 is matched with the ventilation holes 7.

In order to bring more effective abnormal sound prevention effect, the utility model creatively arranges the vent holes 7 and the exhaust grooves 8 on the main body part and the clamping convex edges, and generates air between the anti-collision structure and the shock absorber in the driving process, and the abnormal sound can be continuously generated due to the fact that air flow is blocked and is difficult to discharge along with the movement of the shock absorber and the anti-collision block. And the vent hole 7 and the exhaust groove 8 are added, so that the buffer block can form an exhaust system in a compressed state, and abnormal sound caused by air compression and untimely exhaust is effectively prevented, and the driving experience is influenced.

As shown in fig. 2, the maximum outer diameter of the clamping convex edge 4 gradually decreases from top to bottom. The outer wall structure of the main body part 3 is the same as the outer wall structure of the clamping convex edge 4, and the outer wall size of the main body part 3 is matched with the inner wall size of the clamping convex edge 4. The radial even a plurality of archs that are provided with of main part 3 outer wall, main part 3 outer wall size suits with the protruding along 4 inner wall sizes of joint. The inner wall of the main body 3 is cylindrical. The body 3 is integrally formed. The clamping convex edge 4 and the annular enclasping structure 6 are made of polyurethane.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply indicating that the first feature is at a lower level than the second feature.

The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that the above-mentioned preferred embodiment should not be construed as limiting the utility model, and the scope of the utility model should be defined by the appended claims. It will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the spirit and scope of the utility model, and such modifications and adaptations are intended to be comprehended within the scope of the utility model.

Claims (10)

1. The buffer block structure comprises a buffer block body and a piston rod, and is characterized in that the buffer block body comprises a main body part and an external clamping convex edge, a through mounting groove is formed in the center of the main body part along the extending direction of the axis of the main body part, and the buffer block body is sleeved on the piston rod through the mounting groove; the inner wall of the top end of the main body part is provided with an annular enclasping structure, and the annular enclasping structure and the main body part are wrapped by clamping convex edges.

2. The cushion block structure of claim 1, wherein the annular holding structure inner diameter is in an interference fit with the piston rod outer diameter.

3. The cushion block structure according to claim 1, wherein the top end of the main body is provided with three ventilation holes, and the ventilation holes are uniformly distributed on the top end of the main body.

4. The buffer block structure according to claim 1, wherein the top of the clamping protruding edge is provided with a vent groove, and the vent groove is matched with the vent hole.

5. The cushion block structure of claim 1, wherein the snap-fit ledge has a maximum outer diameter that gradually decreases in a top-to-bottom direction.

6. The cushion block structure of claim 5, wherein the outer wall structure of the main body portion is identical to the outer wall structure of the clamping bead, and the outer wall size of the main body portion is adapted to the inner wall size of the clamping bead.

7. The buffer block structure according to claim 1, wherein a plurality of protrusions are radially and uniformly arranged on the outer wall of the main body, and the outer wall of the main body is sized to be matched with the inner wall of the clamping flange.

8. A bumper structure according to claim 1, wherein the inner wall of the body portion is cylindrical.

9. A bumper structure according to claim 1, wherein said body portion is integrally formed.

10. The buffer block structure of claim 1, wherein the clamping flange and the annular holding structure are both made of polyurethane.

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