CN214742963U

CN214742963U - Air spring piston structure

Info

Publication number: CN214742963U
Application number: CN202120781057.5U
Authority: CN
Inventors: 王冕; 范伟良; 高跃
Original assignee: Zhejiang Kong Hui Automobile Technology Co ltd
Current assignee: Zhejiang Kong Hui Automobile Technology Co ltd
Priority date: 2021-04-16
Filing date: 2021-04-16
Publication date: 2021-11-16
Anticipated expiration: 2031-04-16

Abstract

The utility model provides an air spring piston structure, include: the detachable piston, the air bag, the first end cover and the second end cover; the air bag, the first end cover and the second end cover jointly form a sealed cavity, the inner wall of the detachable piston is matched with the outer wall shape of the first end cover, and the first end cover is sleeved with the detachable piston. The utility model discloses under the condition that does not change other structures, only can dismantle the piston through the change, can obtain the air spring rigidity curve of needs.

Description

Air spring piston structure

Technical Field

The utility model relates to an air spring field, in particular to air spring piston structure.

Background

The rubber air spring is an elastic component, and the elastic function of the air spring is realized by adding high-pressure gas into the air spring and utilizing the compressibility of air. The rigidity of the air spring has the characteristic of nonlinearity, and the rigidity characteristic curve can be designed into a more reasonable curve according to actual requirements.

SUMMERY OF THE UTILITY MODEL

The utility model provides an air spring piston structure for solving the above problems.

In order to achieve the above purpose, the utility model adopts the following specific technical scheme:

an air spring piston structure comprising: the detachable piston, the air bag, the first end cover and the second end cover; the air bag, the first end cover and the second end cover jointly form a sealed cavity, the inner wall of the detachable piston is matched with the outer wall shape of the first end cover, and the first end cover is sleeved with the detachable piston.

Preferably, the first end cover and the second end cover are provided with connecting ends, the connecting ends are matched with the port shapes of the air bags, and the two ends of the air bags are respectively sleeved on the outer walls of the two connecting ends.

Preferably, the air bag fixing device further comprises a buckling and pressing ring which is annular and is sleeved at two ends of the air bag to tightly buckle the air bag on the outer wall of the connecting end.

Preferably, the inner wall of the detachable piston is provided with a reinforcing rib.

Preferably, the removable piston is in clearance fit with the first end cap.

The utility model discloses can gain following technological effect:

under the condition of not changing other structures, the required stiffness curve of the air spring can be obtained only by replacing the detachable piston.

Drawings

Figure 1 is a schematic diagram of an air spring piston arrangement according to an embodiment of the present invention.

Wherein the reference numerals include: the detachable piston 1, the air bag 2, the first end cover 3, the second end cover 4, the first end cover buckling ring 5 and the second end cover buckling ring 6.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not constitute limitations on the invention.

As shown in fig. 1, an air spring piston structure includes: the air bag type air compressor comprises a detachable piston 1, an air bag 2, a first end cover 3 and a second end cover 4; the air bag 2, the first end cover 3 and the second end cover 4 form a sealed cavity together, the inner wall of the detachable piston 1 is matched with the outer wall shape of the first end cover 3 and sleeved on the periphery of the first end cover 3, and the air bag 2 supports the detachable piston 1 to prevent the detachable piston from falling off; the detachable piston 1 can be replaced according to the use requirement of the air spring;

in the working process of the air spring, the rigidity of the air spring changes along with the external situation, which shows that the shape of the air bag 2 inside the air spring changes, the air bag 2 is attached to the outer wall of the detachable piston 1 to be folded, and the effective diameter of the air bag 2 is the diameter of the midpoint of the joggle part attached to the detachable piston 1;

therefore, the effective diameter of the air bag 2 is influenced by the shape of the outer wall of the detachable piston 1, and different effective diameters of the air bag 2 at the same compression or stretching distance can be obtained by replacing the detachable piston 1, namely, the rigidity curve of the air spring is changed.

In an embodiment of the present invention, the first end cap 3 and the second end cap 4 both have a connecting end, the connecting end is adapted to the shape of the port of the airbag 2, two ends of the airbag 2 are respectively sleeved on the outer walls of the two connecting ends, and the two connecting ends together form a sealed chamber to prevent the gas in the airbag 2 from leaking.

In an embodiment of the present invention, the airbag protection device further includes a first end cap buckling ring 5 and a second end cap buckling ring 6, both of which are annular and respectively sleeved at both ends of the airbag 2 to tightly clasp the airbag at the outer wall of the connecting end of the first end cap 3 and the outer wall of the connecting end of the second end cap 4, so that the connection between the airbag 2 and the first end cap 3 and the second end cap 4 is firmer through the buckling rings, the airbag 2 is prevented from falling off, and the airtightness is ensured.

In one embodiment of the invention, the inner wall of the detachable piston 1 is provided with reinforcing ribs, which increase the strength of the detachable piston 1.

In one embodiment of the present invention, the detachable piston 1 and the first end cap 3 are in clearance fit, so as to facilitate the installation and the detachment.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

While embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limiting the present invention. Variations, modifications, substitutions and alterations of the above-described embodiments may occur to persons of ordinary skill in the art without departing from the scope of the invention.

The above detailed description of the present invention does not limit the scope of the present invention. Any other corresponding changes and modifications made according to the technical idea of the present invention should be included in the scope of the claims of the present invention.

Claims

1. An air spring piston structure, comprising: the detachable piston, the air bag, the first end cover and the second end cover; the gasbag first end cover with the second end cover forms sealed cavity jointly, the inner wall cooperation of dismantling the piston the outer wall shape of first end cover is established the cover is established first end cover periphery.

2. The air spring piston structure of claim 1, wherein said first end cap and said second end cap each have a connecting end, said connecting ends being adapted to the shape of the port of said air bag, and wherein said air bag has two ends respectively fitted over the outer walls of said two connecting ends.

3. The air spring piston structure of claim 2, further comprising a buckling ring, wherein the buckling ring is annular and is sleeved on two ends of the air bag to clamp the air bag on the outer wall of the connecting end.

4. The air spring piston structure of claim 1 wherein said removable piston has ribs on its inner wall.

5. The air spring piston arrangement of claim 1 wherein said removable piston is a clearance fit with said first end cap.