Integrated high-sealing sleeve type air spring

Abstract

The utility model relates to the field of air spring design, and discloses an integrated high-sealing sleeve type air spring which comprises an integrated base piece, an integrated upper cover piece and a leather bag, the integrated base piece is provided with a circular-ring-shaped lower embedding groove, the integrated upper cover piece is provided with a circular-ring-shaped upper embedding groove, the upper end of the leather bag is provided with an upper connecting part, and the lower end of the leather bag is provided with a lower connecting part. The lower end of the leather bag is provided with a lower connecting part, and the upper connecting part of the leather bag is hermetically embedded into the upper embedding groove of the integrated upper cover piece and is fixed by reducing and buckling; the lower connecting part of the leather bag is embedded into the lower embedding groove of the integrated base piece in a sealing manner and is fixed in a reducing and buckling manner; and the integrated upper cover piece is communicated with an air tap. The integrated upper cover piece and the integrated base piece both adopt an integrated design structure, so that the number of parts is reduced, the assembly process is optimized, the production efficiency is improved, the sealing and anti-slip performance is improved, the buckling operation is easy to operate, the buckling position consistency is high, meanwhile, the buckling leakage risk is reduced, and the anti-slip effect is improved.

Description

Technical Field

[0001] The utility model relates to the field of air spring design, in particular to an integrated high-sealing sleeve-type air spring. Background Art

[0002] With the continuous development of my country's automobile industry, especially the continuous breakthroughs of new energy vehicles in comfort, smart cockpit, intelligent chassis and other aspects, automobile air suspension, as an important component of automobile chassis, has effectively improved driving comfort. The air spring in the air suspension is generally a sleeve air spring. The existing sleeve air spring includes an upper cover assembly, a bladder and a piston assembly. The main body of the upper cover assembly is the cover body, and the end of the cover body is the bladder connection end A. In order to ensure the sealing installation of the bladder, a pressure ring A is often installed on the outside of the bladder connection end A. When the bladder end is sealed outside the bladder connection end A, the pressure ring A is pressed and sealed. The length of the pressure ring A is smaller than the length of the bladder connection end A. As a result, the pressure ring A is often difficult to install in the center of the bladder connection end A (it may be biased upward or downward), affecting its sealing installation effect. In order to achieve the relative limit installation of the pressure ring A, a limit ring plate is often set at the bladder connection end A, and a sealing gasket is also set for sealing. This also makes the overall volume of the upper cover assembly larger. The same situation also occurs in the piston assembly. Therefore, the existing sleeve-type air spring has a low degree of integration, many independent parts, and a complex structure. The assembly process is relatively cumbersome, and there is a greater probability of leakage risk. Utility Model Content

[0003] The purpose of the present utility model is to solve the technical problems pointed out by the background technology, and to provide an integrated high-sealing sleeve-type air spring. The integrated upper cover and the integrated base both adopt an integrated design structure, which reduces the number of parts, optimizes the assembly process, improves production efficiency, improves sealing and anti-slip performance, makes the buckling operation easy to operate, and has high consistency in the buckling position. At the same time, it reduces the risk of buckling leakage and increases the anti-slip effect.

[0004] The purpose of this utility model is achieved through the following technical solutions:

[0005] An integrated high-seal sleeve-type air spring comprises an integrated base member, an integrated upper cover member and a bladder, wherein the integrated base member has a lower embedding groove in the shape of an annular ring, the integrated upper cover member has an upper embedding groove in the shape of a circular ring, the upper end of the bladder has an upper connecting portion, and the lower end of the bladder has a lower connecting portion, the upper connecting portion of the bladder is sealingly embedded and installed in the upper embedding groove of the integrated upper cover member and is fixed by shrinking and pressing; the lower connecting portion of the bladder is sealingly embedded and installed in the lower embedding groove of the integrated base member and is fixed by shrinking and pressing; an air nozzle is connected and installed on the integrated upper cover member.

[0006] In order to better realize the present invention, the integrated upper cover includes an inner lining connection part B and a tube pressure ring B arranged in an inner and outer layer, and the upper embedded groove is an annular groove B surrounded by the inner lining connection part B and the tube pressure ring B; when the upper connection part of the bladder is embedded in the annular groove B between the inner lining connection part B and the tube pressure ring B, the tube pressure ring B is fastened by a reducing and pressing method.

[0007] Preferably, the outer wall of the lining connection part B is distributed with an inner anti-slip line B along the height direction, the inner wall of the cylinder pressure ring B is distributed with an outer anti-slip line B along the height direction, and the upper connection part of the bladder is located between the inner anti-slip line B and the outer anti-slip line B.

[0008] Preferably, the inner anti-slip line B is composed of trapezoidal teeth continuously arranged along the height direction on the outer wall of the lining connection part B, and the outer anti-slip line B is composed of fine triangular teeth continuously arranged along the height direction on the inner wall of the cylinder pressure ring B; the height of the lining connection part B is greater than the height of the cylinder pressure ring B.

[0009] Preferably, the integrated base member includes an inner lining connection part A and a tube pressure ring A arranged in an inner and outer layer, and the lower embedded groove is an annular groove A formed between the inner lining connection part A and the tube pressure ring A; when the lower connection part of the bladder is embedded in the annular groove A between the inner lining connection part A and the tube pressure ring A, the tube pressure ring A is fastened by reducing the diameter and pressing.

[0010] Preferably, the outer wall of the lining connection part A is distributed with an inner anti-slip line A along the height direction, the inner wall of the cylinder pressure ring A is distributed with an outer anti-slip line A along the height direction, and the lower connection part of the bladder is located between the inner anti-slip line A and the outer anti-slip line A.

[0011] Preferably, the inner anti-slip line A is composed of trapezoidal teeth continuously arranged along the height direction on the outer wall of the lining connection part A, and the outer anti-slip line A is composed of fine triangular teeth continuously arranged along the height direction on the inner wall of the cylinder pressure ring A; the height of the lining connection part A is greater than the height of the cylinder pressure ring A.

[0012] Preferably, a threaded connection column is provided at the center of the top of the integrated upper cover, and the air nozzle is threaded and sealedly connected to the threaded connection column.

[0013] Preferably, an arc-shaped transition is formed between the upper connecting portion and the body of the bladder via an arc-shaped neck A; and an arc-shaped transition is formed between the lower connecting portion and the body of the bladder via an arc-shaped neck B.

[0014] Preferably, a threaded connection hole A is opened at the bottom of the integrated base member.

[0015] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0016] (1) The integrated upper cover of the utility model is integrated with an upper embedding groove for embedding and installing the upper connecting part of the bladder, and the upper connecting part adopts embedding assembly; the integrated upper cover is also integrated with an inner lining connecting part B and a cylinder pressure ring B arranged inside and outside, and the inner lining connecting part B and the cylinder pressure ring B form an upper embedding groove and are used for embedding and sealing the upper part of the bladder, and also serve the purpose of limiting and sealing the upper end of the bladder; the upper part of the bladder is sealed by the cylinder pressure ring B through shrinking and buckling, and the position of the cylinder pressure ring B will not move during installation and use, and has the advantages of reliable structure, convenient assembly, and strong sealing performance.

[0017] (2) The integrated base member of the utility model is integrated with a lower embedding groove in which the lower connecting part of the bladder is embedded and installed, and the lower connecting part is assembled by embedding; the integrated base member is also integrated with an inner lining connecting part A and a cylinder pressure ring A arranged inside and outside, and the inner lining connecting part A and the cylinder pressure ring A form a lower embedding groove and are used for embedding and sealing the lower part of the bladder, and also serve the purpose of limiting and sealing the lower end of the bladder; the lower part of the bladder is sealed by the cylinder pressure ring A through shrinking and buckling, and the position of the cylinder pressure ring A will not move during installation and use.

[0018] (3) The integrated upper cover and integrated base of the utility model adopt an integrated design structure, which reduces the number of parts, optimizes the assembly process, improves production efficiency, improves sealing and anti-slip performance, makes the buckling operation easy to operate, and has high consistency in the buckling position. At the same time, it reduces the risk of buckling leakage and increases the anti-slip effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic structural diagram of the integrated upper cover in the embodiment;

[0020] Figure 2 Schematic diagram of the structure of the integrated base member in the embodiment;

[0021] Figure 3 Schematic diagram of the structure of the leather bag in the embodiment;

[0022] Figure 4 It is a cross-sectional view of the embodiment after the bladder is sealed and connected between the integrated upper cover member and the integrated base member;

[0023] Figure 5 This is a diagram of the external structure after the bladder is sealed and connected between the integrated upper cover and the integrated base in the embodiment.

[0024] The names corresponding to the reference numerals in the accompanying drawings are:

[0025] 1-integrated base component, 2-inner lining connection part A, 21-inner anti-slip line A, 3-cylinder pressure ring A, 31-outer anti-slip line A, 4-lower embedded groove, 5-threaded connection hole A, 6-integrated upper cover component, 7-inner lining connection part B, 71-inner anti-slip line B, 8-cylinder pressure ring B, 81-outer anti-slip line B, 9-upper embedded groove, 10-threaded connection column, 11-skin bag, 111-upper connection part, 1111-arc neck A, 112-lower connection part, 1121-arc neck B. DETAILED DESCRIPTION

[0026] The present invention is further described in detail below in conjunction with the embodiments:

[0027] Example

[0028] like Figures 1 to 5 As shown, an integrated, high-seal sleeve-type air spring comprises an integrated base member 1, an integrated upper cover member 6, and a bladder 11. The integrated base member 1 has a circular lower embedding groove 4, the integrated upper cover member 6 has a circular upper embedding groove 9, the upper end of the bladder 11 has an upper connecting portion 111, and the lower end of the bladder 11 has a lower connecting portion 112. The upper connecting portion 111 of the bladder 11 is sealed and embedded in the upper embedding groove 9 of the integrated upper cover member 6 and is fixed by shrinking and pressing. The lower connecting portion 112 of the bladder 11 is sealed and embedded in the lower embedding groove 4 of the integrated base member 1 and is fixed by shrinking and pressing. A threaded connection hole A5 is provided at the bottom of the integrated base member 1 for threaded assembly with other external components. An air nozzle is connected and installed on the integrated upper cover member 6.

[0029] In some embodiments, the integrated upper cover 6 includes an inner lining connection portion B7 and a cylinder pressure ring B8 arranged as inner and outer layers. The inner lining connection portion B7 and the cylinder pressure ring B8 are both cylindrical structures and arranged inside and outside. The upper embedding groove 9 is an annular groove B surrounded by the inner lining connection portion B7 and the cylinder pressure ring B8. After the upper connection portion 111 of the bladder 11 is embedded in the annular groove B between the inner lining connection portion B7 and the cylinder pressure ring B8, the cylinder pressure ring B8 is fastened by reducing the diameter and pressing. During installation, the upper connection portion 111 of the bladder 11 is embedded in the annular groove B. When the end of the upper connection portion 111 is against the bottom of the annular groove B, the embedding assembly is completed. In order to facilitate the embedding assembly, the outer cylinder pressure ring B8 can be tilted outward first to facilitate the embedding or insertion of the upper connection portion 111. Then, the cylinder pressure ring B8 is turned from outward to parallel with the inner lining connection portion B7, and then tightened by reducing the diameter and pressing. A threaded connection column 10 is provided at the center of the top of the integrated upper cover 6 , and the air nozzle is threaded and sealedly connected to the threaded connection column 10 .

[0030] In some embodiments, the upper connecting portion 111 forms an arcuate transition to the body of the bag 11 via an arcuate neck portion A1111, which forms the neck portion between the upper connecting portion 111 and the body of the bag 11. The diameter of the upper connecting portion 111 is slightly smaller than the diameter of the body of the bag 11. The lower connecting portion 112 forms an arcuate transition to the body of the bag 11 via an arcuate neck portion B1121, which forms the neck portion between the lower connecting portion 112 and the body of the bag 11. The diameter of the lower connecting portion 112 is slightly smaller than the diameter of the body of the bag 11.

[0031] like Figure 1 As shown, the outer wall of the lining connection part B7 has an inner anti-slip line B71 distributed along the height direction, the inner wall of the cylinder pressure ring B8 has an outer anti-slip line B81 distributed along the height direction, and the upper connection part 111 of the bladder 11 is located between the inner anti-slip line B71 and the outer anti-slip line B81. The inner anti-skid line B71 is composed of trapezoidal teeth continuously arranged along the height direction on the outer wall of the lining connection part B7 (that is, the inner anti-skid line B71 is composed of trapezoidal teeth continuously arranged along the height direction), and the outer anti-skid line B81 is composed of fine triangular teeth continuously arranged along the height direction on the inner wall of the cylinder pressure ring B8; when the upper connection part 111 of the bladder 11 is embedded and installed inside the annular groove B, the inner side of the upper connection part 111 will contact the inner anti-skid line B71, and under the action of the buckling pressure, part of the rubber material cortex of the upper connection part 111 is tightly locked and sealed by the trapezoidal teeth of the inner anti-skid line B71, and at the same time, the rubber material cortex on the outer side of the upper connection part 111 is tightly locked and sealed by the fine triangular teeth of the outer anti-skid line B81; Figure 4 The structure after the integrated upper cover 6 and the upper connecting portion 111 of the skin bag 11 are embedded, buckled and fastened is shown; Figure 5 This is the external structure of the sleeve air spring after installation. The height of the liner connection part B7 is greater than the height of the cylinder pressure ring B8.

[0032] In some embodiments, the integrated base member 1 includes an inner lining connection part A2 and a tube pressure ring A3 arranged in an inner and outer layer, and the lower embedded groove 4 is an annular groove A surrounded by the inner lining connection part A2 and the tube pressure ring A3. After the lower connection part 112 of the bladder 11 is embedded in the annular groove A between the inner lining connection part A2 and the tube pressure ring A3, the tube pressure ring A3 is fastened by reducing the diameter and pressing. During installation, the lower connection part 112 of the bladder 11 is embedded into the annular groove A, and the embedded assembly is completed when the end of the lower connection part 112 supports the bottom of the annular groove A. In order to facilitate the embedded assembly, the outer tube pressure ring A3 can be tilted outward first to facilitate the embedding or insertion of the lower connection part 112, and then the tube pressure ring A3 is turned from outward to parallel to the inner lining connection part A2, and then tightened by reducing the diameter and pressing. Figure 4 The structure after the integrated base member 1 and the lower connecting portion 112 of the bladder 11 are embedded, buckled and fastened is shown.

[0033] like Figure 2 As shown, the outer wall of the lining connection part A2 is provided with an inner anti-skid line A21 along the height direction, and the inner wall of the cylinder pressure ring A3 is provided with an outer anti-skid line A31 along the height direction. The lower connection part 112 of the bladder 11 is located between the inner anti-skid line A21 and the outer anti-skid line A31. The inner anti-skid line A21 is composed of trapezoidal teeth continuously arranged along the height direction on the outer wall of the lining connection part A2, and the outer anti-skid line A31 is composed of fine triangular teeth continuously arranged along the height direction on the inner wall of the cylinder pressure ring A3. When the lower connection part 112 of the bladder 11 is embedded and installed inside the annular groove A, the inner side of the lower connection part 112 will contact the inner anti-skid line A21. Under the action of the buckling pressure, part of the rubber material cortex of the lower connection part 112 is tightly locked and sealed by the trapezoidal teeth of the inner anti-skid line A21, and at the same time, the rubber material cortex outside the lower connection part 112 is tightly locked and sealed by the fine triangular teeth of the outer anti-skid line A31. The height of the liner connection portion A2 is greater than the height of the cylinder pressing ring A3.

[0034] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An integrated high-seal sleeve air spring, characterized by: The invention comprises an integrated base member (1), an integrated upper cover member (6) and a bladder (11), wherein the integrated base member (1) has a lower embedding groove (4) in an annular shape, the integrated upper cover member (6) has an upper embedding groove (9) in a circular shape, the upper end of the bladder (11) has an upper connecting portion (111), and the lower end of the bladder (11) has a lower connecting portion (112), the upper connecting portion (111) of the bladder (11) is sealed and embedded in the upper embedding groove (9) of the integrated upper cover member (6) and is fixed by shrinking and buckling; the lower connecting portion (112) of the bladder (11) is sealed and embedded in the lower embedding groove (4) of the integrated base member (1) and is fixed by shrinking and buckling; and an air nozzle is connected and installed on the integrated upper cover member (6).

2. The integrated high-seal sleeve air spring according to claim 1, characterized in that: The integrated upper cover (6) includes an inner lining connection portion B (7) and a cylinder pressure ring B (8) arranged in an inner and outer layer, and the upper embedding groove (9) is an annular groove B formed between the inner lining connection portion B (7) and the cylinder pressure ring B (8); when the upper connection portion (111) of the bladder (11) is embedded in the annular groove B between the inner lining connection portion B (7) and the cylinder pressure ring B (8), the cylinder pressure ring B (8) is fastened by a shrinking buckling method.

3. The integrated high-seal sleeve air spring according to claim 2, characterized in that: An inner anti-skid line B (71) is distributed along the height direction on the outer wall of the lining connection portion B (7), an outer anti-skid line B (81) is distributed along the height direction on the inner wall of the cylinder pressure ring B (8), and the upper connection portion (111) of the bladder (11) is located between the inner anti-skid line B (71) and the outer anti-skid line B (81).

4. The integrated high-seal sleeve air spring according to claim 3, characterized in that: The inner anti-slip line B (71) is composed of trapezoidal teeth continuously arranged along the height direction on the outer wall of the lining connection part B (7), and the outer anti-slip line B (81) is composed of fine triangular teeth continuously arranged along the height direction on the inner wall of the cylinder pressure ring B (8); the height of the lining connection part B (7) is greater than the height of the cylinder pressure ring B (8).

5. The integrated high-seal sleeve air spring according to claim 1, characterized in that: The integrated base member (1) comprises an inner lining connection portion A (2) and a cylinder pressure ring A (3) arranged in an inner and outer layer, and the lower embedding groove (4) is an annular groove A formed between the inner lining connection portion A (2) and the cylinder pressure ring A (3); when the lower connection portion (112) of the bladder (11) is embedded in the annular groove A between the inner lining connection portion A (2) and the cylinder pressure ring A (3), the cylinder pressure ring A (3) is fastened by a shrinking buckling method.

6. The integrated high-seal sleeve air spring according to claim 5, characterized in that: An inner anti-slip line A (21) is distributed along the height direction on the outer wall of the lining connection portion A (2), an outer anti-slip line A (31) is distributed along the height direction on the inner wall of the cylinder pressure ring A (3), and the lower connection portion (112) of the bladder (11) is located between the inner anti-slip line A (21) and the outer anti-slip line A (31).

7. The integrated high-seal sleeve air spring according to claim 6, characterized in that: The inner anti-slip line A (21) is composed of trapezoidal teeth continuously arranged along the height direction on the outer wall of the lining connection part A (2), and the outer anti-slip line A (31) is composed of fine triangular teeth continuously arranged along the height direction on the inner wall of the cylinder pressure ring A (3); the height of the lining connection part A (2) is greater than the height of the cylinder pressure ring A (3).

8. The integrated high-seal sleeve air spring according to claim 1, characterized in that: A threaded connection column (10) is provided at the top center of the integrated upper cover (6), and the air nozzle is threadedly and sealingly connected to the threaded connection column (10).

9. The integrated high-seal sleeve air spring according to claim 1, characterized in that: An arc-shaped transition is formed between the upper connecting portion (111) and the body of the bladder (11) via an arc-shaped neck A (1111); and an arc-shaped transition is formed between the lower connecting portion (112) and the body of the bladder (11) via an arc-shaped neck B (1121).

10. The integrated high-seal sleeve air spring according to claim 1, characterized in that: A threaded connection hole A (5) is provided at the bottom of the integrated base member (1).

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