CN219510071U - Air spring for vehicle and vehicle - Google Patents

Abstract

The utility model discloses an air spring for a vehicle and the vehicle, which comprise a bag cover and a lower swing seat, wherein the bag cover is fixed on the lower swing seat through a compression ring, an anti-slip tooth structure is arranged on the lower swing seat, compression teeth are respectively arranged at two ends of the inner side of the compression ring, a compression groove is arranged at the position, corresponding to the compression teeth, of the lower swing seat, and the bag cover is compressed in the compression groove by the compression teeth. Therefore, the bag skin is pressed in the pressing groove through the pressing teeth, the skeleton-cord in the bag skin is folded and deformed at the pressing groove, so that after the cord is pressed by the pressing teeth at the inner side of the pressing ring, enough deformation and bending space are ensured, the bearing capacity of the cord is enhanced, the tensile stripping capacity of the bag skin is greatly improved, the application range of the air spring with the same specification is widened, and the problem of fixing failure of the air spring is avoided; and the two ends of the inner side of the pressing ring are provided with the pressing teeth, so that the pressing ring can be automatically aligned in the buckling process only by preliminary positioning, and the positioning precision requirement is reduced.

Description

Air spring for vehicle and vehicle

Technical Field

The utility model relates to the technical field of vehicle air springs, in particular to an air spring for a vehicle and the vehicle.

Background

With the development of the vehicle industry, consumers have higher and higher performance requirements on vehicles, air springs are widely applied to the field of vehicles, and the conventional air springs for vehicles are usually pressed on a lower pendulum seat body through a pressing ring so as to meet the fixing requirement of rubber capsules.

The rear air spring is designed in a split type with multiple connecting rods, and is stretched and compressed in the process of jumping up and down of the wheel (see figure I). The existing compression ring design scheme is a straight-wall compression ring structure, the corresponding lower swing seat is only designed into an anti-slip tooth structure (see a second drawing), when the air spring is buckled, due to the fact that the anti-slip tooth distance is smaller, the area is only filled with the capsule skin inner adhesive, the cord is used as the most main bearing part, deformation is limited in buckling, and bearing capacity is not fully exerted. The air spring with small bearing and moderate fluctuation swing angle can meet the use requirement of working conditions due to small bearing air pressure and smaller deflection angle.

However, as the demands of the market for six or more passenger cars are increased, the requirements of driving safety and comfort are met for larger riding space, the working capacity of the air spring is required to be higher, the bearing and deflection angle of the air spring during working are further increased, the body type of the air spring cannot be increased along with the improvement of the working capacity due to the limitation of the assembly space, the original bag leather buckling structure cannot meet the use requirements under the working condition, and a large number of fault modes are that the compression ring is separated from the buckling position, so that early failure of the air spring function is generated.

Disclosure of Invention

In order to solve the technical problems in the background art, the utility model provides an air spring for a vehicle and the vehicle.

The utility model provides an air spring for a vehicle, which comprises a bag cover and a lower swing seat, wherein the bag cover is fixed on the lower swing seat through a compression ring, an anti-slip tooth structure is arranged on the lower swing seat, compression teeth are respectively arranged at two ends of the inner side of the compression ring, a compression groove is arranged at the position, corresponding to the compression teeth, of the lower swing seat, and the compression teeth are used for positioning the bag Pi Yajin in the compression groove.

Preferably, the bladder comprises an inner glue for sealing high-pressure gas inside the bladder, an outer glue and a cord, wherein the cord is a framework of the bladder.

Preferably, the tooth is rectangular, triangular or wavy.

Preferably, a first step and a second step for supporting the capsule skin are arranged below the anti-slip tooth structure on the lower swing seat.

Preferably, a protrusion is arranged on the lower swing seat above the anti-slip tooth structure.

The utility model also provides a vehicle comprising the air spring for a vehicle according to any one of the above.

According to the air spring for the vehicle and the vehicle, provided by the utility model, the pressing teeth are respectively arranged at the two ends of the inner side of the pressing ring, the pressing grooves corresponding to the pressing teeth are arranged on the lower swing seat, the pressing teeth press the bag skin in the pressing grooves, the skeleton-cord in the bag skin is subjected to buckling deformation at the pressing grooves, the cord is ensured to have enough deformation and bending space after being pressed by the pressing teeth at the inner side of the pressing ring, the bearing capacity of the cord is enhanced, the tensile stripping capacity of the bag skin is greatly improved, the application range of the air spring with the same specification is expanded, and the problem of fixing failure of the air spring is avoided; and the two ends of the inner side of the pressing ring are provided with the pressing teeth, so that the pressing ring can be automatically aligned in the buckling process only by preliminary positioning, and the positioning precision requirement is 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 diagram of a prior art air spring mounted on a vehicle;

FIG. 2 is a state diagram of the air spring at A in FIG. 1 in a down-spring position;

FIG. 3 is a state diagram of the air spring at A in FIG. 1 in a sprung position;

FIG. 4 is a schematic diagram of a conventional straight wall compression ring compressing an air spring against a skirt;

FIG. 5 is a schematic diagram of the air spring and the skirt seat prior to buckling;

fig. 6 is a schematic diagram of a state after the air spring and the skirt seat are buckled.

In fig. 1-4:

1-a vehicle body; 2-wheels; 3-an air spring; 4-subframe; 5-swinging arms; 6-upper jump position, 7-lower jump position, 8-rubber capsule, 9-straight wall compression ring and 10-lower swing seat assembly;

in fig. 5-6:

11-a compression ring; 12-tooth pressing; 13-a lower swing seat; 14-pressing grooves; 15-an anti-slip dental structure; 16-capsule skin; 17-inner glue; 18-external glue; 19-cord, 20-first step; 21-a second step; 22-bump.

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.

Hereinafter, embodiments will be described with reference to the drawings. Furthermore, the embodiments shown below do not limit the summary of the utility model described in the claims. The whole contents of the constitution shown in the following examples are not limited to the solution of the utility model described in the claims.

Referring to fig. 5-6, the present embodiment provides an air spring for a vehicle, including a bag cover 16 and a lower swing seat 13, wherein the bag cover 16 is fixed on the lower swing seat 13 through a compression ring 11, and an anti-slip tooth structure 15 is arranged on the lower swing seat 13, so that not only is the friction force between the lower swing seat 13 and the bag cover 16 increased, but also the anti-slip tooth structure 15 can further clamp the bag cover 16 in the process of using the lower swing seat 13 and the compression ring 11 in a matched manner to clamp the bag cover 16. Therefore, the clamping effect of the lower pendulum seat 13 and the compression ring 11 on the bag skin 16 is improved, the fixing effect of the lower pendulum seat 13 on the bag skin 16 is enhanced, and the pull-out resistance of the bag skin 16 is greatly improved.

Further, as shown in fig. 5, the two ends of the inner side of the compression ring 11 are respectively provided with a compression tooth 12, the position of the lower swing seat 13 corresponding to the compression tooth 12 is provided with a compression groove 14, and the compression tooth 12 compresses the capsule skin 16 in the compression groove 14.

In this way, the pressing teeth 12 press the bag skin 16 in the pressing groove 14, the skeleton-cord 19 in the bag skin 16 is folded and deformed at the pressing groove 14, so that the cord 19 is ensured to have enough deformation and bending space after being pressed by the pressing teeth 12 at the inner side of the pressing ring 11, the bearing capacity of the cord 19 is enhanced, the tensile stripping capacity of the bag skin 16 is greatly improved, the application range of air springs with the same specification is widened, and the problem of fixing failure of the air springs is avoided; and the pressing teeth 12 are arranged at the two ends of the inner side of the pressing ring 11, and the pressing ring 11 can be automatically aligned in the buckling process only by preliminary positioning, so that the positioning precision requirement is reduced.

Specifically, the teeth 12 are rectangular, triangular or wavy, and those skilled in the art can choose a suitable shape of the teeth 12 according to specific practical needs to meet specific assembly needs.

As shown in fig. 6, the bladder 16 includes an inner rubber 17, an outer rubber 18 and a cord 19, wherein the inner rubber 17 is used for sealing high-pressure gas inside the bladder 16, so as to ensure that the pressure drop of the air spring in operation is within a reasonable range; the outer rubber 18 plays a role in protecting the cord 19 and the inner rubber 17, ensures that the inner cord 19 and the inner rubber 17 are not polluted by external impurities such as greasy dirt, dust and the like, and resists aging and cracking caused by ozone and temperature change; the cord 19 is the skeleton of the whole leather bag, and restrains the leather bag from unrestricted expansion due to the high-pressure gas in the leather bag, bears the loads applied by the high-pressure gas in all directions, and determines the maximum working pressure of the leather bag. The deformation of the cord 19 in the region of the anti-skid teeth also determines whether the air spring will be pulled off during operation.

In this embodiment, the first step 20 and the second step 21 for supporting the bag cover 16 are disposed below the anti-slip tooth structure 15 on the lower swing seat 13, which has a supporting function on the bag cover 16, so as to avoid the problem that the bag cover 16 is easy to deviate from the buckling position, and early failure of the air spring function occurs.

It should be noted that, the boss 22 is disposed above the anti-slip tooth structure 15 on the skirt seat 13. Not only plays a limiting role on the bag cover 16 in the vertical direction, but also can be matched with the first step 20 and the second step 21, and a vertical downward acting force is provided for the bag cover 16 in the vertical direction so as to strengthen the fixing effect on the bag cover 16.

The utility model also provides a vehicle comprising the air spring for the vehicle according to the embodiment. The development of this benefit is substantially similar to the development of the benefit provided by the air spring for a vehicle described above, and will not be repeated here.

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.

The present utility model is not limited to the above-mentioned embodiments, and any person skilled in the art, based on the technical solution of the present utility model and the inventive concept thereof, can be replaced or changed within the scope of the present utility model.

Claims (6)

1. The utility model provides an air spring for vehicle, includes bag skin and lower hem seat, the bag skin passes through the clamping ring to be fixed on the lower hem seat, its characterized in that is provided with anti-skidding tooth structure on the lower hem seat, the inboard both ends of clamping ring are equipped with the pressure tooth respectively, the lower hem seat with the pressure tooth corresponds position department and is equipped with the indent, the pressure tooth will bag Pi Yajin is in the indent.

2. An air spring for a vehicle according to claim 1, wherein said bladder includes an inner gel for sealing high pressure gas inside said bladder, an outer gel, and a cord that is a skeleton of said bladder.

3. An air spring for a vehicle according to claim 1, wherein the tooth is provided in a rectangular shape or a triangular shape or a wavy shape.

4. The air spring for a vehicle according to claim 1, wherein the skirt seat is provided with a first step and a second step for supporting the cover below the anti-slip tooth structure.

5. An air spring for a vehicle according to claim 1, wherein the skirt is provided with a protrusion above the anti-slip tooth structure.

6. A vehicle, characterized in that it comprises an air spring for a vehicle according to any one of the preceding claims 1-5.