CN220037316U - Air suspension buffer block - Google Patents

Abstract

The utility model discloses an air suspension buffer block, which relates to the technical field of air suspension buffer blocks, and provides an air suspension buffer block.

Description

Air suspension buffer block

Technical Field

The utility model relates to the technical field of air suspension buffer blocks, in particular to an air suspension buffer block.

Background

With the continuous development of the automobile industry, the market has higher and higher requirements on the space size, riding comfort and operation stability of the whole automobile. The original Macpherson suspension passive vibration reduction structure can not meet the demands of different consumer groups at the same time, the air suspension replaces the original passive vibration reduction device to become the necessity of market selection, the air spring has the advantages of large bearing capacity, variable rigidity and small space occupation, and the air suspension is increasingly used by middle-high-end and new energy automobiles in a configuration mode, as shown in a figure I.

The second figure shows the design scheme of the original buffer block assembly, which consists of a buffer body consisting of foaming polyurethane and a reinforcing ring. The cushion block is referred to as a "secondary spring" and the air spring is integrated in the shock strut. The buffer block is required to bear the fluctuation of the shock absorber along with the fluctuation of the shock absorber in the axial direction, bear the compression impact force in the wheel jumping process, assist the air spring to play a supporting role on the vehicle, limit the transitional compression of the suspension during the jumping limit, and avoid the shock absorber from being impacted with the air chamber to cause the damage of the shock absorber and internal parts. The service life and the operation stability of the air spring are improved, and the buffer block is repeatedly compressed by the end cover of the shock absorber and the cup of the air inlet chamber in the process of upward jumping and downward jumping of the wheel.

However, in the process of the wheel reciprocating in the up-jump and the down-jump, the buffer block is repeatedly compressed by the end cover of the shock absorber and the cup of the air inlet chamber, the empty spring deflects to a certain extent, the buffer block assembly does not deform strictly along the axis, when no matter what the situation is, the piston rod of the shock absorber is not coaxial with the inner wall of the buffer block and contacts with the inner wall of the buffer block, the friction abnormal sound occurs along with the compression and the restoration of the buffer block and the relative movement of the piston rod, and the lower end surface of the buffer block contacts with the protective cover of the shock absorber in the compression process, the contact area increases along with the increase of the compression quantity, and when the vehicle deflects, the abnormal vibration can be generated on the contact surface.

To this end, the utility model proposes an air suspension damper.

Disclosure of Invention

In order to solve the technical problems in the background technology, the utility model provides an air suspension buffer block.

The utility model provides an air suspension buffer block, which comprises a buffer block buffer body, wherein a reinforcing ring is sleeved on the buffer block buffer body, an annular groove matched with the reinforcing ring is formed in the periphery of the buffer block buffer body, a plurality of inner convex parts are arranged in an inner cavity of the buffer block buffer body, and a plurality of outer convex parts are arranged at one end of the buffer block buffer body, namely, at one end close to a protective cover of a shock absorber.

Preferably, a supporting groove is formed in one end, far away from the outer protruding block, of the buffer block buffer body, and a supporting ring matched with the supporting groove is arranged in the supporting groove.

Preferably, the support ring is a nylon support ring.

Preferably, the bulge loop is installed to the periphery of supporting ring, and bulge loop and supporting ring are integrated into one piece setting, and bulge loop makes the supporting ring be difficult for breaking away from the supporting groove.

Preferably, the plurality of the inward convex pieces are distributed in an annular shape in the inner cavity of the buffer body of the buffer block.

Preferably, a plurality of said male protrusions are annularly distributed.

Preferably, the inner and outer male members each include a bump and a bump.

1. According to the air suspension buffer block, the inner protruding piece is added in the buffer body of the buffer block, so that the inner protruding piece can strengthen certain internal strength of the buffer body of the buffer block, a supporting effect is achieved on an oppositely extruded part in the working process, the deformation of the whole structure of the buffer block is reduced, meanwhile, the contact between a piston rod of the shock absorber and the inner wall is changed from surface contact to point contact, a certain space is reserved between the center hole of the buffer block and the piston rod through the action of the inner protruding piece, the buffer block and the piston rod are delayed to be completely contacted, and even in a deflection state, the contact of the piston rod is reduced due to the existence of the inner protruding piece, so that contact friction and abnormal sound are greatly reduced.

2. According to the air suspension buffer block, the convex part is additionally arranged at one end, close to the buffer protection cover, of the buffer body of the buffer block, in the process of upward compression of the buffer, the hollow spring rotates to a certain extent, the buffer body of the buffer block and the buffer protection cover are mutually extruded, so that larger abnormal sound can be generated, the outer convex point is additionally arranged, the effect of reducing the contact between the buffer body of the buffer block and the buffer protection cover and the friction generated during rotation is reduced, and the effect of reducing the abnormal sound is achieved.

3. According to the air suspension buffer block, the nylon supporting ring is added on the buffer body of the buffer block, so that the mounting end of the buffer block can be prevented from being extruded and deformed towards the central hole, the size of a matched area is ensured, and the falling risk of the buffer body of the buffer block is greatly reduced.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

FIG. 1 is a schematic illustration of a prior art air suspension;

FIG. 2 is a schematic diagram of a conventional buffer block;

FIG. 3 is a cross-sectional view of the structure of the present utility model;

FIG. 4 is a schematic view of an inner male member of the present utility model;

FIG. 5 is a schematic bottom view of the male part of the present utility model;

FIG. 6 is a schematic cross-sectional view of the support ring of the present utility model.

In the figure, 1, a buffer block buffer body; 2. a reinforcing ring; 3. an inner convex member; 4. a male part; 5. a support groove; 6. a support ring; 7. a convex ring.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar symbols indicate like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present utility model and are not to be construed as limiting the present utility model.

It is to be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counter-clockwise," "axial," "radial," "circumferential," and the like are directional or positional relationships as indicated based on the drawings, merely to facilitate describing the utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

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; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. 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 "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

An air suspension buffer block as shown in figures 3-6 comprises a buffer block buffer body 1, wherein a reinforcing ring 2 is sleeved on the buffer block buffer body 1, an annular groove matched with the reinforcing ring 2 is formed in the periphery of the buffer block buffer body 1, a plurality of inner convex parts 3 are arranged in the inner cavity of the buffer block buffer body 1, a plurality of outer convex parts 4 are arranged at one end of the buffer block buffer body 1, namely one end close to a protective cover of the shock absorber,

further, the inner convex parts 3 are distributed in an annular mode in the inner cavity of the buffer body 1 of the buffer block, the outer convex parts 4 are distributed in an annular mode, and the inner convex parts 3 and the outer convex parts 4 comprise protruding blocks and protruding points.

According to the air suspension buffer block, the inner protruding piece 3 is added in the buffer body 1 of the buffer block, the inner protruding piece 3 can strengthen certain internal strength of the buffer body 1 of the buffer block, a supporting effect is achieved on an oppositely extruded part in the working process, so that deformation of the whole structure is reduced, meanwhile, the contact between a piston rod of the shock absorber and the inner wall is changed from surface contact to point contact, a certain space is reserved between a central hole of the buffer block and the piston rod through the action of the inner protruding piece 3, the buffer block and the piston rod are delayed to be completely contacted, and even in a deflection state, the contact of the piston rod is reduced due to the existence of the inner protruding piece 3, so that contact friction and abnormal sound are greatly reduced;

meanwhile, the outer protruding piece 4 is additionally arranged at one end, close to the protective cover of the shock absorber, of the buffer block buffer body 1, in the process of upward compression of the shock absorber, the hollow spring rotates to a certain extent, the buffer block buffer body 1 and the protective cover of the shock absorber are mutually extruded, so that larger abnormal sound can be generated, the outer protruding point is additionally arranged, the contact between the buffer block buffer body 1 and the protective cover of the shock absorber is reduced, friction generated during rotation is reduced, and the abnormal sound is reduced.

Because the working property of the air spring generally has larger internal air pressure, the buffer block buffer body 1 is formed by foaming polyurethane, and under the action of the internal air pressure, the buffer body is compressed by air to reduce the volume and fall off from a cup matched with the buffer body, so that the integral function of the air spring is affected;

further, the supporting groove 5 has been seted up to the one end that outer lug was kept away from to buffer block buffer body 1, is equipped with in the supporting groove 5 with supporting ring 6 of supporting groove 5 looks adaptation, and supporting ring 6 inlays and establish in supporting groove 5, and supporting ring 6 is nylon supporting ring 6, and bulge loop 7 is installed to the periphery of supporting ring 6, and bulge loop 7 and supporting ring 6 are integrated into one piece setting and bulge loop 7 make supporting ring 6 be difficult for breaking away from supporting groove 5.

The existence of the supporting ring reduces the volume of the matrix of the foaming polyurethane which participates in deformation under the action of high-pressure gas, so that the foaming polyurethane body is compressed under the condition of great deformation, the matching size is not reduced too much, and the interference magnitude is ensured without falling off.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims (7)

1. The utility model provides an air suspension buffer block, includes buffer block buffer body (1), the cover is equipped with stiffener ring (2) on buffer block buffer body (1), its characterized in that, a plurality of interior protruding piece (3) are installed to the inner chamber of buffer block buffer body (1), a plurality of evagination piece (4) are installed to the one end of buffer block buffer body (1).

2. The air suspension buffer block according to claim 1, wherein a supporting groove (5) is formed in one end, far away from the outer protruding block, of the buffer block buffer body (1), and a supporting ring (6) matched with the supporting groove (5) is arranged in the supporting groove (5).

3. An air suspension damper according to claim 2, characterized in that the support ring (6) is a nylon support ring.

4. An air suspension damper according to claim 2 or 3, characterized in that the outer periphery of the support ring (6) is fitted with a collar (7).

5. An air suspension damper according to claim 1, wherein a plurality of said inwardly projecting members (3) are annularly distributed in the inner cavity of the damper body (1).

6. Air suspension damper according to claim 1, characterized in that a plurality of said male protrusions (4) are distributed in a ring shape.

7. Air suspension damper according to claim 1 or 2 or 5 or 6, characterized in that the inner (3) and outer (4) convex parts each comprise a bump and a bump.