CN219176848U - Air spring and automobile with same - Google Patents

Abstract

The utility model relates to an air spring and an automobile with the same, wherein the air spring comprises: the spring comprises a spring body and an end cover, wherein the end cover comprises an end cover body and a guide part, one side of the end cover body is connected with one end of the spring body in the length direction, the other side of the end cover body is connected with the guide part, and the outer peripheral outline of the guide part is gradually reduced along the direction deviating from the end cover body on the cross section orthogonal to the length direction of the spring body. The air spring has reasonable structural design, is convenient to assemble and is beneficial to improving the production efficiency.

Description

Air spring and automobile with same

Technical Field

The utility model relates to the technical field of automobiles, in particular to an air spring and an automobile with the air spring.

Background

The air spring is used as a vibration reduction component and is mainly applied to mechanical equipment such as trains, automobiles and the like to reduce vibration in the running process of the vehicle, ensure the running stability of the vehicle and improve riding comfort. However, in the related art, the structural design of the air spring is unreasonable, so that an operator can not conveniently install the air spring on a vehicle body, the assembly process is complex, the automatic assembly of the vehicle is not facilitated, and the production efficiency is reduced.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems in the related art to some extent.

Therefore, the embodiment of the utility model provides the air spring which is reasonable in structural design, convenient to assemble and beneficial to improving the production efficiency.

The embodiment of the utility model also provides an automobile.

An air spring of an embodiment of the present utility model includes: the spring comprises a spring body and an end cover, wherein the end cover comprises an end cover body and a guide part, one side of the end cover body is connected with one end of the spring body in the length direction, the other side of the end cover body is connected with the guide part, and the outer peripheral outline of the guide part is gradually reduced along the direction deviating from the end cover body on the cross section orthogonal to the length direction of the spring body.

According to the air spring provided by the embodiment of the utility model, the guide part is arranged on the other side of the end cover body, and the peripheral outline of the guide part is gradually reduced along the direction deviating from the end cover body, so that the guide part can be used for guiding the assembly of the air spring when the air spring is assembled, and the air spring and the vehicle body can be conveniently installed. Therefore, the air spring provided by the embodiment of the utility model has the advantages of reasonable structural design, convenience in assembly and convenience in improvement of production efficiency.

In some embodiments, the guide portion has a circular outer peripheral profile in a cross section orthogonal to the length direction of the spring body.

In some embodiments, the end cap further comprises a clamping portion disposed at an end of the guide portion facing away from the end cap body, the clamping portion adapted to be clamped with a vehicle body.

In some embodiments, the clamping portion includes a first clamping hook and a second clamping hook, the first clamping hook and the second clamping hook are arranged on the guide portion at intervals, and the first clamping hook and the second clamping hook have elasticity.

In some embodiments, the first clamping hook and the second clamping hook each comprise an extension section and a hook body section, one end of the extension section is connected with the guide portion, the other end of the extension section is connected with the hook body section, and the hook body section protrudes outwards along the radial direction of the guide portion.

In some embodiments, the outer peripheral profile of the first snap hook and the outer peripheral profile of the second snap hook are both circular arcs in cross section orthogonal to the length direction of the spring body.

In some embodiments, a notch is provided at an end of the guide portion facing away from the end cover body, the notch penetrates in a first direction, and the first clamping hook and the second clamping hook are arranged at intervals in the first direction.

In some embodiments, the end cap further comprises a resilient cushioning layer integrated on a side of the end cap body facing away from the spring body.

In some embodiments, the end cap body is removably connected with the spring body.

In some embodiments, the spring body includes a spring core, an outer casing and a dust cover, the air spring further includes a spring seat, the outer casing and the dust cover are sleeved outside the spring core, the end cover is disposed at one end of the spring core in a length direction, and the spring seat is disposed at the other end of the spring core in the length direction.

An automobile according to another embodiment of the present utility model includes: an air spring, the air spring being a spring as in any of the above embodiments; the automobile body, be equipped with the mating holes on the automobile body, the guide part is in the mating holes.

According to the automobile provided by the embodiment of the utility model, the guide part is arranged on the other side of the end cover body, and the peripheral outline of the guide part is gradually reduced along the direction away from the end cover body, so that when the air spring is assembled on the automobile body, the guide part can be used for guiding the assembly of the air spring, and the installation work of the air spring and the automobile body is facilitated. Therefore, the air spring of the automobile provided by the embodiment of the utility model has reasonable structural design, is convenient to assemble and is beneficial to improving the production efficiency of the automobile.

In some embodiments, the clamping portion of the end cap passes through the mating hole and is clamped with the peripheral edge of the mating hole.

Drawings

FIG. 1 is a schematic view of an air spring according to an embodiment of the present utility model.

FIG. 2 is a schematic illustration of an end cap of an air spring according to an embodiment of the present utility model.

FIG. 3 is a schematic diagram of the installation of an air spring according to an embodiment of the present utility model.

Fig. 4 is a partial schematic view of a body of an automobile according to an embodiment of the present utility model.

Reference numerals:

1. a spring body; 11. an outer casing; 12. a dust cover; 13. a spring seat; 14. an air tap;

2. an end cap; 21. an end cap body; 211. a buckle; 22. a guide part; 221. a notch; 23. a clamping part; 231. a first clamping hook; 2311. an extension section; 2312. a hook section; 232. a second clamping hook; 24. an elastic buffer layer;

3. a vehicle body; 31. and a mating hole.

Detailed Description

Reference will now be made in detail to embodiments of the present utility model, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

An air spring and an automobile having the same according to an embodiment of the present utility model are described below with reference to fig. 1 to 4.

As shown in fig. 1 to 3, an air spring according to an embodiment of the present utility model includes: the spring body 1 and the end cover 2, the end cover 2 comprises an end cover body 21 and a guide part 22, one side of the end cover body 21 (the lower side of the end cover body 21 in fig. 1) is connected with one end of the spring body 1 in the length direction (the upper end of the spring body 1 in fig. 1), the other side of the end cover body 21 (the upper side of the end cover body 21 in fig. 1) is connected with the guide part 22, and the peripheral outline of the guide part 22 is gradually reduced along the direction (the direction from bottom to top in fig. 1) deviating from the end cover body 21 on the cross section orthogonal to the length direction of the spring body 1.

According to the air spring of the embodiment of the utility model, the guide part 22 is arranged on the other side of the end cover body 21, and the peripheral outline of the guide part 22 is gradually reduced along the direction away from the end cover body 21, so that when the air spring is assembled, the guide part 22 can be used for guiding the assembly of the air spring, and the installation work of the air spring and the vehicle body 3 is facilitated. Therefore, the air spring provided by the embodiment of the utility model has the advantages of reasonable structural design, convenience in assembly and convenience in improvement of production efficiency.

In the related art, in order to realize the assembly of the air spring, a cavity needs to be arranged at the upper end of the air spring, and a boss matched with the cavity is arranged on the vehicle body, but the boss needs to be welded on the vehicle body, so that the material and process cost is increased. And the cavity at the upper end of the air spring occupies the volume of the air spring, so that the rigidity regulating range of the air spring is reduced, and the regulating of the riding comfort of the whole vehicle is influenced. While the air spring of the embodiment of the present utility model can overcome the above-described drawbacks by providing a guide at the upper end of the end cap body 21, while providing corresponding fitting holes 31 on the vehicle body 3. In addition, the air spring setting guide piece can automatically guide during assembly, so that the development of unmanned automatic assembly process of the air spring and the vehicle body 3 is facilitated, and the production efficiency of the vehicle is further improved. And the internal space of the air spring can be saved, which is beneficial to the comfort rigidity teaching of the air spring.

Alternatively, as shown in fig. 1 to 3, the outer circumferential profile of the guide portion 22 is circular in a cross section orthogonal to the length direction of the spring main body 1. It will be appreciated that the guide 22 may be of a pyramid or cone configuration. Preferably, the guide portion 22 has a conical structure, the outer circumferential surface of the guide portion 22 is a conical surface, and the axis of the guide portion 22 is collinear with the axis of the spring body 1. The air spring of the embodiment of the utility model can further facilitate the assembly of the air spring by arranging the guide part 22 into a conical structure, and has simple processing and manufacturing and better use effect.

In some embodiments, as shown in fig. 1 to 3, the end cap 2 further includes a clamping portion 23, where the clamping portion 23 is disposed at an end of the guiding portion 22 facing away from the end cap body 21, and the clamping portion 23 is adapted to be clamped with the vehicle body 3. It will be appreciated that, when the air spring is assembled, the air spring can be guided by the guide portion 22 and engaged with the vehicle body 3 by the engaging portion 23, so that the air spring can be positioned in the axial direction and the radial direction. The air spring of the embodiment of the utility model can simplify the assembly process of the air spring and improve the production efficiency of the automobile by arranging the clamping part 23.

Specifically, as shown in fig. 2, the clamping portion 23 includes a first clamping hook 231 and a second clamping hook 232, the first clamping hook 231 and the second clamping hook 232 are arranged on the guide portion 22 at intervals, and the first clamping hook 231 and the second clamping hook 232 have elasticity. It is understood that the clamping portion 23 may include two or more clamping hooks, for example, in the embodiment of the present application, two clamping hooks, i.e., the first clamping hook 231 and the second clamping hook 232.

When the chassis assembly is assembled with the vehicle body 3, the chassis is lifted in the vertical direction, the guide part 22 automatically aligns with the matching hole 31 on the vehicle body 3 through conical guide, and the first clamping hook 231 and the second clamping hook 232 penetrate through the matching hole 31 to clamp the vehicle body 3, so that unmanned automatic assembly of the air spring is realized. The air spring of the embodiment of the utility model can conveniently clamp the vehicle body 3 by arranging the clamping part 23 into the clamping hook structure, and has simple structural design and better stability after assembly.

Alternatively, as shown in fig. 2, each of the first snap hook 231 and the second snap hook 232 includes an extension 2311 and a hook body 2312, one end of the extension 2311 (e.g., the lower end of the extension 2311 in fig. 2) is connected to the guide 22, the other end of the extension 2311 (e.g., the upper end of the extension 2311 in fig. 2) is connected to the hook body 2312, and the hook body 2312 protrudes outward in the radial direction of the guide 22. It will be appreciated that when the air spring is assembled, the hook body 2312 may be threaded upwardly out of the mating hole 31, such that the hook body 2312 is engaged with the outer edge of the mating hole 31 to limit the axial and radial directions of the air spring.

The outer circumferential profile of the first snap hook 231 and the outer circumferential profile of the second snap hook 232 are both circular arc-shaped in cross section orthogonal to the length direction of the spring main body 1. It can be appreciated that the outer peripheral outline of the first clamping hook 231 and the outer peripheral outline of the second clamping hook 232 are located on the same circle, so that the outer wall surfaces of the first clamping hook 231 and the second clamping hook 232 can be penetrated out upwards through the guiding action of the conical matching hole 31, thereby improving the convenience of assembling the air spring, and the assembling effect is better.

Alternatively, as shown in fig. 1 and 2, an end of the guide portion 22 facing away from the end cap body 21 (e.g., an upper end of the guide portion 22 in fig. 2) is provided with a notch 221, the notch 221 penetrates in a first direction (e.g., a radial direction of the spring body 1 in fig. 2), and the first snap hooks 231 and the second snap hooks 232 are spaced apart in the first direction. It can be understood that the first clamping hook 231 and the second clamping hook 232 can elastically swing left and right along the first direction, and the notch 221 of the guiding portion 22 does not interfere with the swing of the first clamping hook 231 and the second clamping hook 232, so the air spring of the embodiment of the utility model can facilitate the clamping of the clamping portion 23 and the vehicle body 3 by arranging the guiding portion 22 in the structure described above, and has reasonable structural design. For example, the guide portion 22 and the clamping portion 23 are integrally injection molded, so that the end cover 2 is convenient to process and manufacture, and the structural strength is high.

In some embodiments, as shown in fig. 1 and 2, the end cap body 21 is detachably connected to the spring body 1, and it is understood that the spring body 1 and the end cap body 21 may be manufactured separately and then assembled into one body. For example, the end cover body 21 is provided with a buckle 211, the spring body 1 is provided with a clamping position, and the buckle 211 is matched with the clamping position, so that the end cover 2 is convenient to install on the spring body 1.

In some embodiments, as shown in fig. 1 to 3, the end cap 2 further comprises an elastic buffer layer 24, the elastic buffer layer 24 being integrated on the side of the end cap body 21 facing away from the spring body 1. For example, the elastic buffer layer 24 may be made of rubber material. The elastic buffer layer 24 can be integrated on the end cover body 21 through a vulcanization process, so that the assembly process of an independent elastic piece is reduced, the problem of mounting dislocation of the elastic buffer layer 24 and the end cover body 21 and the vehicle body 3 is avoided, the assembly efficiency is improved, the elastic buffer effect of the air spring and the vehicle body 3 is good, and the risk of abnormal sound of an automobile is avoided.

Specifically, as shown in fig. 1 and 3, the spring body 1 includes a spring core (not shown), an outer casing 11, and a dust cover 12, the air spring further includes a spring seat 13, the outer casing 11 and the dust cover 12 are sleeved outside the spring core, the end cover 2 is disposed at one end of the spring core in the length direction, and the spring seat 13 is disposed at the other end of the spring core in the length direction. For example, as shown in fig. 1, the outer casing 11 is sleeved in the middle of the spring core, two dust covers 12 are provided, two dust covers 12 are sleeved on the upper side and the lower side of the spring core, and the dust covers 12 are connected with the outer casing 11. The spring core is also provided with an air tap 14, and the air tap 14 is positioned for supplying air into the spring core. The end cover 2 is arranged at the upper end of the spring core body, and the spring seat 13 is arranged at the lower end of the spring core body.

As shown in fig. 3 and 4, an automobile according to another embodiment of the present utility model includes: the air spring is the spring of the utility model, and the automobile body 3 is provided with a matching hole 31, and the guide part 22 is matched in the matching hole 31.

According to the automobile of the embodiment of the utility model, the guide part 22 is arranged on the other side of the end cover body 21, and the peripheral outline of the guide part 22 is gradually reduced along the direction away from the end cover body 21, so that when the air spring is assembled on the automobile body 3, the guide part 22 can provide guide for the assembly of the air spring, and the installation work of the air spring and the automobile body 3 is facilitated. Therefore, the air spring of the automobile provided by the embodiment of the utility model has reasonable structural design, is convenient to assemble and is beneficial to improving the production efficiency of the automobile.

Specifically, as shown in fig. 3 and 4, the fitting hole 31 is a conical hole, and the upper end of the fitting hole 31 is conducted. After the air spring is assembled, the hook segment 2312 can be inserted upwards out of the matching hole 31, so that the hook segment 2312 is clamped with the outer edge of the matching hole 31 to limit the axial direction and the radial direction of the air spring. According to the automobile provided by the embodiment of the utility model, the air spring and the automobile body 3 are assembled in the mode, so that the assembly process of the air spring can be simplified, the manpower is saved, and the production efficiency of the automobile is improved.

While the above embodiments have been shown and described, it should be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives, and variations of the above embodiments may be made by those of ordinary skill in the art without departing from the scope of the utility model.

Claims (12)

1. An air spring, comprising:

a spring body;

the end cover comprises an end cover body and a guide part, one side of the end cover body is connected with one end of the length direction of the spring body, the other side of the end cover body is connected with the guide part, and the outer peripheral outline of the guide part is gradually reduced along the direction deviating from the end cover body on the cross section orthogonal to the length direction of the spring body.

2. An air spring as set forth in claim 1 wherein said guide portion has a circular peripheral contour in a cross section orthogonal to a length direction of said spring main body.

3. The air spring of claim 1, wherein the end cap further comprises a clamping portion disposed at an end of the guide portion facing away from the end cap body, the clamping portion adapted to be clamped with a vehicle body.

4. The air spring of claim 3 wherein the snap-fit portion includes a first snap-fit hook and a second snap-fit hook, the first snap-fit hook and the second snap-fit hook being spaced apart on the guide portion and the first snap-fit hook and the second snap-fit hook having resiliency.

5. The air spring of claim 4, wherein the first snap hook and the second snap hook each include an extension segment and a hook body segment, one end of the extension segment is connected to the guide portion, the other end of the extension segment is connected to the hook body segment, and the hook body segment protrudes outward in a radial direction of the guide portion.

6. The air spring of claim 4, wherein the outer peripheral contour of the first snap hook and the outer peripheral contour of the second snap hook are each circular arc-shaped in a cross section orthogonal to the length direction of the spring body.

7. The air spring of claim 4, wherein an end of the guide portion facing away from the end cap body is provided with a slot therethrough in a first direction, the first and second snap hooks being spaced apart in the first direction.

8. The air spring of claim 1, wherein the end cap further comprises an elastic cushioning layer integrated on a side of the end cap body facing away from the spring body.

9. The air spring of claim 1 wherein said end cap body is removably connected to said spring body.

10. The air spring of claim 1, wherein the spring body comprises a spring core, an outer protective sleeve and a dust cover, the air spring further comprises a spring seat, the outer protective sleeve and the dust cover are sleeved on the outer side of the spring core, the end cover is arranged at one end of the spring core in the length direction, and the spring seat is arranged at the other end of the spring core in the length direction.

11. An automobile, comprising:

an air spring, the air spring being a spring according to any one of claims 1-10;

the automobile body, be equipped with the mating holes on the automobile body, the guide part is in the mating holes.

12. The automobile of claim 11, wherein the snap-fit portion of the end cap passes through the mating hole and snaps with a peripheral edge of the mating hole.

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