CN219911602U

CN219911602U - Air spring leather bag structure

Info

Publication number: CN219911602U
Application number: CN202321291038.XU
Authority: CN
Inventors: 刘猛; 吴国雄; 杨敏艳; 胡微
Original assignee: Anhui Longwei Auto Parts Co ltd
Current assignee: Anhui Longwei Auto Parts Co ltd
Priority date: 2023-05-25
Filing date: 2023-05-25
Publication date: 2023-10-27
Anticipated expiration: 2033-05-25

Abstract

The utility model relates to the technical field of air springs, and discloses an air spring leather bag structure, which comprises a leather bag body, wherein a bulge is arranged on the outer surface of one end of the leather bag body, which is contacted with a plastic piece, the leather bag body is fixed with the plastic piece through a compression ring, and the inner wall of the compression ring is tightly contacted with the bulge on the outer surface of the leather bag body. According to the utility model, the bulges are arranged on the outer surfaces of the two ends of the leather bag body, so that the inner wall of the pressing ring is tightly contacted with the bulges, and the contact friction force is improved, thereby improving the assembly tightness between the leather bag body and the pressing ring and avoiding the falling of the pressing ring caused by the increase of the internal pressure; through bellied setting for the outer rubber layer of leather bag body can thicken, is favorable to improving the mechanical protection and the chemical protection function of outer rubber layer, thereby reinforcing product performance.

Description

Air spring leather bag structure

Technical Field

The utility model relates to the technical field of air springs, in particular to an air spring leather bag structure.

Background

The automobile rubber air spring utilizes the elasticity and air pressure of rubber to obtain the comprehensive shock absorption, shock insulation, noise prevention and buffering performances, thereby playing the role of elastic support for bearing load. The rubber air spring is used as a core component for automobile shock absorption, and the performance of the rubber air spring directly influences the comfort of an automobile and the damage to a road.

The current sleeve type air spring leather bag is connected with the plastic part in a pressing ring pressing mode, the pressing ring is pressed to form plastic deformation, the diameter of the pressing ring is reduced to squeeze the leather bag, so that the leather bag is compressed and tightly attached to the plastic part, and the state is kept.

Along with the gradually increased endurance mileage of the new energy automobile, the weight of the automobile body is also continuously increased, and the suspension system is relatively compact in space, so that higher requirements are set for the air spring: in smaller installation spaces (especially passenger cars) the air springs meet the requirement of dimensional stability, as part of the air bags are exposed locally and have no constraint of the aluminum tube, the requirement of larger internal pressure is used (about 40 percent is increased), the requirement of higher bursting strength is met, and the risk of falling off the compression ring after the internal pressure is increased, so that the friction force between the compression ring and the air bags is necessarily increased.

Disclosure of Invention

In order to solve the technical problems in the background technology, the utility model provides an air spring leather bag structure.

The utility model provides an air spring leather bag structure which comprises a leather bag body, wherein a bulge is arranged on the outer surface of one end, which is contacted with a plastic piece, of the leather bag body, the leather bag body is fixed with the plastic piece through a compression ring, and the inner wall of the compression ring is tightly contacted with the bulge on the outer surface of the leather bag body.

As a further optimized scheme of the utility model, the protrusions (6) are round, triangular or square protrusions.

As a further optimized scheme of the utility model, the leather bag body is a rubber leather bag.

As a further optimized scheme of the utility model, the bulge is a rubber bulge and is integrally formed with the leather bag body.

As a further optimized scheme of the utility model, the leather bag body comprises an outer rubber layer, a first ply, a second ply and an inner rubber layer which are sequentially distributed from outside to inside.

As a further optimized scheme of the utility model, the thickness of the inner rubber layer is smaller than that of the outer rubber layer.

As a further optimized scheme of the utility model, the bulge is arranged on the outer surface of the outer rubber layer.

The air spring leather bag structure provided by the utility model has the following effective effects:

the outer surfaces of the two ends of the leather bag body are provided with the bulges, so that the inner wall of the pressing ring is tightly contacted with the bulges, the contact friction force is improved, the assembly tightness between the leather bag body and the pressing ring is improved, and the falling-off of the pressing ring caused by the increase of the internal pressure is avoided;

and secondly, the outer rubber layer of the leather bag body is thickened through the arrangement of the bulges, so that the mechanical protection and chemical protection functions of the outer rubber layer are improved, and the product performance is enhanced.

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 diagram of an air spring applied to a bellows structure of the present utility model;

FIG. 2 is an enlarged schematic view of the structure of FIG. 1A according to the present utility model;

fig. 3 is an enlarged schematic view of the structure of fig. 1B according to the present utility model.

Description of the drawings: 1. a plastic part is arranged on the upper part; 2. a pressing ring is arranged; 3. an air valve; 4. a leather bag body; 5. a lower pressing ring; 6. a protrusion; 7. a lower plastic part; 8. an outer rubber layer; 9. a first ply; 10. a second ply; 11. an inner rubber layer.

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.

Referring to fig. 1 and 2, an air spring leather bag structure comprises a leather bag body 4, wherein a bulge 6 is arranged on the outer surface of one end of the leather bag body 4, which is contacted with a plastic piece, the leather bag body 4 is fixed with the plastic piece through a compression ring, and the inner wall of the compression ring is tightly contacted with the bulge 6 on the outer surface of the leather bag body 4;

specifically, the plastic part is divided into an upper plastic part 1 and a lower plastic part 7, the compression ring is divided into an upper compression ring 2 and a lower compression ring 5, annular grooves are formed in the outer walls of the upper plastic part 1 and the lower plastic part 7, the upper end of the leather bag body 4 is sleeved in the annular groove of the upper plastic part 1, and the upper end of the leather bag body 4 is fastened with the upper plastic part 1 through the upper compression ring 2; the lower end of the leather bag body 4 is sleeved in an annular groove of the lower plastic piece 7, and the lower end of the leather bag body 4 is fastened with the lower plastic piece 7 through the lower compression ring 5, so that the leather bag body 4 is installed;

further, the lower plastic part 7 is also provided with an air valve 3, and when the air spring works, air is introduced and exhausted into the leather bag body 4 by the air valve 3 so as to reach an ideal working state;

further, the protrusions (6) are round, triangular or square protrusions, and the protrusions (6) are preferably square protrusions, so that the contact friction force can be improved;

further, the leather bag body 4 is a rubber leather bag, the bulge 6 is a rubber bulge and is integrally formed with the leather bag body 4, and the friction force between the leather bag body 4 and the compression ring can be improved by utilizing the design of the bulge 6, so that the accidental falling of the compression ring is prevented;

further, the outer walls of the upper end and the lower end of the leather bag body 4 are provided with the bulges 6, the number of the bulges 6 is a plurality of and is uniformly distributed to form point bulges, so that the friction between the compression ring and the leather bag body 4 is increased;

further, the leather bag body 4 comprises an outer rubber layer 8, a first ply layer 9, a second ply layer 10 and an inner rubber layer 11 which are sequentially distributed from outside to inside, wherein the thickness of the inner rubber layer 11 is smaller than that of the outer rubber layer 8; by providing the projections 6 on the outer surface of the outer rubber layer 8, the thickness of the outer rubber layer 8 can be increased, thereby enhancing the product performance.

In summary, the protrusions 6 are arranged on the outer surfaces of the two ends of the leather bag body 4, so that the inner wall of the pressing ring is tightly contacted with the protrusions 6, the contact friction force is improved, the assembly tightness between the leather bag body 4 and the pressing ring is improved, and the falling-off of the pressing ring caused by the increase of the internal pressure is avoided; through the setting of protruding 6 for outer rubber layer 8 of leather bag body 4 obtains thickening, is favorable to improving outer rubber layer 8's mechanical protection and chemical protection function, thereby reinforcing product performance.

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

1. The utility model provides an air spring leather bag structure, includes leather bag body (4), its characterized in that, the one end surface that leather bag body (4) contacted with the working of plastics is provided with arch (6), and is fixed leather bag body (4) and working of plastics through the clamping ring, and clamping ring inner wall and protruding (6) in close contact with of leather bag body (4) surface.

2. An air spring bellows structure according to claim 1, characterized in that the projections (6) are circular, triangular or square projections.

3. An air spring bellows structure according to claim 1, characterized in that the bellows body (4) is a rubber bellows.

4. An air spring bellows structure according to claim 3, characterized in that the bulge (6) is a rubber bulge and is integrally formed with the bellows body (4).

5. An air spring bellows construction according to claim 1, characterized in that the bellows body (4) comprises an outer rubber layer (8), a first ply (9), a second ply (10) and an inner rubber layer (11) distributed in sequence from the outside to the inside.

6. An air spring bellows construction according to claim 5, characterized in that the thickness of the inner rubber layer (11) is smaller than the thickness of the outer rubber layer (8).

7. An air spring bellows construction according to claim 5, characterized in that the projections (6) are provided on the outer surface of the outer rubber layer (8).