Leather bag and built-in altitude valve piston sealing combination system

Abstract

The utility model relates to the field of automobile part manufacturing, and discloses a leather bag and built-in altitude valve piston sealing combination system which comprises a built-in altitude valve piston and a leather bag, the built-in altitude valve piston is provided with a leather bag connecting end, the end of the leather bag is provided with a sealing connecting end, and one end of the leather bag connecting end is provided with a limiting step face. The other end of the leather bag connecting end is provided with an arc protrusion, the leather bag connecting end is provided with an anti-skid sealing line, and the arc protrusion, the anti-skid sealing line and the limiting step face form a U-shaped sealing connecting groove. The sealing connecting end is arranged in the U-shaped sealing connecting groove in a sealed mode, and an arc groove matched with the arc protrusion is formed in the sealing connecting end. A buckling ring is installed outside the sealing connecting end of the leather bag in a reducing buckling mode. The built-in altitude valve piston and the leather bag of the air spring are connected and matched in a sealed mode, multiple sealing is achieved, the sealing performance of the leather bag is effectively guaranteed, compact combination of the altitude valve piston and the air spring is achieved, and the air spring has the advantages of being convenient to install, excellent in sealing performance, reasonable in structure and the like.

Description

Technical Field

[0001] The utility model relates to the field of automobile parts manufacturing, in particular to a bladder and built-in height valve piston sealing combination system. Background Art

[0002] The air spring piston is a key component of the air spring assembly, connected to the air bladder at the top and the shock absorber at the bottom. It is a crucial component of the vehicle's suspension damping system. The air spring bladder stores air, creating a spring-loaded cushion for shock absorption. To reduce vehicle space, the leveling valve and piston are often integrated. Current research focuses on effectively integrating the leveling valve piston with the air spring bladder. Technical challenges to be addressed include: how to connect the leveling valve piston to the air spring bladder, how to seal the air spring bladder, and how to air-intake the air spring bladder. 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 a bladder and built-in height valve piston sealing combination system, in which the built-in height valve piston and the bladder seal of the air spring are connected and coordinated to realize multiple seals, effectively ensure the sealing performance of the bladder, and realize the compact combination of the height valve piston and the air spring, with the advantages of easy installation, excellent sealing performance, and reasonable structure.

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

[0005] A bladder and built-in height valve piston sealing combination system includes a built-in height valve piston and a bladder, the built-in height valve piston has a bladder connecting end, the bladder end has a sealing connecting end, one end of the bladder connecting end has a limiting step surface, the other end of the bladder connecting end has an arc protrusion, the bladder connecting end has an anti-slip sealing line between the limiting step surface and the arc protrusion, the arc protrusion, the anti-slip sealing line and the limiting step surface form a U-shaped sealing connecting groove; the sealing connecting end is sealed and placed in the U-shaped sealing connecting groove of the bladder connecting end, the sealing connecting end has an arc groove that matches the arc protrusion, and the sealing connecting end has an arc transition protrusion corresponding to the arc groove; the sealing connecting end of the bladder is externally reduced in diameter and is installed with a pressing ring.

[0006] In order to better realize the present invention, the interior of the built-in height valve piston has a piston cavity connected to the bladder cavity, the bottom of the built-in height valve piston has a shock absorber assembly hole, and the shock absorber assembly hole of the built-in height valve piston is sealed and assembled with a shock absorber.

[0007] Preferably, the built-in height valve piston has a piston skirt on the outside, and the piston skirt has an air inlet channel and an exhaust channel connected to the piston inner cavity. The air inlet channel is correspondingly installed with an air inlet nozzle, and the exhaust channel is correspondingly installed with an exhaust nozzle.

[0008] Preferably, the anti-slip sealing line is provided with continuously arranged anti-slip teeth, and the sealing connection end is provided with anti-slip matching teeth that engage with the anti-slip teeth.

[0009] Preferably, a built-in reinforcement ring is embedded in the bladder connection end of the built-in height valve piston at a position corresponding to the anti-slip sealing line.

[0010] Preferably, the shock absorber assembly hole of the built-in height valve piston has a connecting boss, the end seal of the shock absorber is embedded in the shock absorber assembly hole and fixedly connected to the connecting boss, and the inner wall of the shock absorber assembly hole of the built-in height valve piston is provided with an O-ring groove, and an O-ring sealing ring that cooperates with the outer wall of the end of the shock absorber is embedded and installed in the O-ring groove.

[0011] Preferably, the piston skirt is provided with skirt reinforcement ribs, and the piston inner cavity of the built-in height valve piston is provided with inner cavity reinforcement ribs.

[0012] Preferably, a muffler hole is provided on the built-in height valve piston, and a muffler is installed in the muffler hole.

[0013] Preferably, the anti-slip teeth of the anti-slip sealing line are trapezoidal teeth or triangular teeth.

[0014] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0015] (1) The utility model has a built-in height valve piston and an air spring bladder seal connection, which realizes multiple seals, effectively ensures the bladder sealing performance, and realizes a compact combination of the height valve piston and the air spring. It has the advantages of convenient installation, excellent sealing performance, and reasonable structure.

[0016] (2) The anti-slip sealing line of the bladder connection end of the utility model adopts mutually engaged anti-slip matching teeth and an anti-slip tooth matching structure; the sealing connection end of the bladder is sealed and placed or embedded in a U-shaped sealing connection groove; the sealing connection end of the bladder is externally reduced in diameter and is installed with a pressing ring, which makes the seal tighter; thereby forming multiple seals and improving the sealing quality after the bladder is assembled.

[0017] (3) The utility model has a built-in height valve piston with a piston skirt, on which an air inlet and an air outlet are obliquely arranged. The built-in height valve piston is arranged to be conducive to compressing the volume, making the structure more compact, and also facilitating the air inlet and outlet operations of the bladder. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of the utility model after the built-in height valve piston and the bladder seal are assembled;

[0019] Figure 2 for Figure 1 Schematic diagram of the structure of the built-in height valve piston;

[0020] Figure 3 for Figure 2 Schematic diagram of the structure looking upwards.

[0021] The names corresponding to the reference numerals in the accompanying drawings are:

[0022] 1-Built-in height valve piston, 2-bladder connection end, 21-arc protrusion, 22-limiting step surface, 23-anti-slip sealing line, 3-Built-in reinforcement ring, 4-bladder, 41-sealing connection end, 5-withholding ring, 6-inner cavity reinforcement rib, 7-shock absorber connection end, 71-shock absorber assembly hole, 8-O-ring groove, 9-intake nozzle, 91-intake duct, 10-exhaust nozzle, 11-muffler hole, 12-piston skirt, 121-skirt reinforcement rib, 13-connecting boss. DETAILED DESCRIPTION

[0023] The present invention is further described in detail below in conjunction with the embodiments:

[0024] Example

[0025] like Figures 1 to 3 As shown, a bladder and built-in height valve piston sealing combination system includes a built-in height valve piston 1 and a bladder 4, the built-in height valve piston 1 has a bladder connecting end 2, the end of the bladder 4 has a sealing connecting end 41, one end of the bladder connecting end 2 has a limiting step surface 22, the other end of the bladder connecting end 2 has an arc protrusion 21, the bladder connecting end 2 has an anti-slip sealing line 23 between the limiting step surface 22 and the arc protrusion 21, the arc protrusion 21, the anti-slip sealing line 23 and the limiting step surface 22 form a U-shaped sealing connection groove. The sealing connection end 41 is sealed and placed in the U-shaped sealing connection groove of the bladder connecting end 2, and the sealing connection end 41 has an arc groove that matches the arc protrusion 21. The sealing connection end 41 has an arc transition protrusion corresponding to the arc groove (the arc transition protrusion adopts an arc transition to strengthen the strength of this part of the bladder). In this way, a fitting piece that matches the U-shaped sealing connection groove is formed between the end of the sealing connection end 41 and the arc-shaped transition protrusion. The fitting piece can closely match the U-shaped sealing connection groove and play a good sealing role.

[0026] At the same time, a pressing ring 5 is installed on the outside of the sealing connection end 41 of the bladder 4 by reducing the diameter. The pressing ring 5 is first put on the outside of the sealing connection end 41 of the bladder 4, and then the reducing tool is used to reduce the diameter. In this way, the pressing ring 5 can make the sealing connection end 41 fit more tightly in the U-shaped sealing connection groove of the bladder connection end 2, thereby enhancing the sealing effect.

[0027] The interior of the built-in height valve piston 1 has a piston inner cavity that is connected to the inner cavity of the bladder 4, and the bottom of the built-in height valve piston 1 has a shock absorber assembly hole 71 (the shock absorber assembly hole 71 can be connected to the piston inner cavity, such as Figure 2 As shown; of course, the shock absorber assembly hole 71 can be an independent mounting position located at the bottom of the built-in height valve piston 1, and the piston inner cavity is an independent cavity located in the upper middle part of the built-in height valve piston 1), and the shock absorber assembly hole 71 of the built-in height valve piston 1 is sealed and assembled with a shock absorber.

[0028] The utility model has a piston skirt 12 on the outside of the built-in height valve piston 1 (the piston skirt 12 is in the shape of an unfolded skirt on the outside of the built-in height valve piston 1, so as to facilitate the construction of the air duct), and the piston skirt 12 is provided with an air intake channel and an exhaust channel 91 connected to the inner cavity of the piston (the air intake channel and the exhaust channel 91 are both arranged obliquely upward, that is, from the bottom of the built-in height valve piston 1 toward the top of the built-in height valve piston 1 and inclined, which is convenient for other supporting equipment to be installed along the bottom, leaving more space for other equipment to be installed on the upper part), and an air intake nozzle 9 is correspondingly installed on the air intake channel 91 (the air intake nozzle 9 is normally closed, and the air intake nozzle 9 is connected for air intake operation when in use), and an exhaust nozzle 10 is correspondingly installed on the exhaust channel (the exhaust nozzle 10 is normally closed, and the exhaust nozzle 10 is connected for exhaust operation when in use).

[0029] In some embodiments, the anti-slip sealing line 23 has continuously arranged anti-slip teeth, and the sealing connection end 41 has anti-slip mating teeth that engage with the anti-slip teeth. Preferably, the anti-slip teeth of the anti-slip sealing line 23 are trapezoidal teeth or triangular teeth, allowing for better sealing engagement between the anti-slip teeth and the anti-slip mating teeth.

[0030] In some embodiments, the bladder connection end 2 of the built-in height valve piston 1 is embedded with an internal reinforcement ring 3 at the location corresponding to the anti-slip seal line 23. This internal reinforcement ring 3 reinforces the structure. The piston skirt 12 is provided with skirt reinforcement ribs 121, and the piston cavity of the built-in height valve piston 1 is provided with internal cavity reinforcement ribs 6. The built-in height valve piston 1 is provided with a muffler hole 11, in which a muffler is installed.

[0031] In some embodiments, the shock absorber assembly hole 71 of the built-in height valve piston 1 has a connecting boss 13, the end seal of the shock absorber is embedded in the shock absorber assembly hole 71 and fixedly connected to the connecting boss 13, and the inner wall of the shock absorber assembly hole 71 of the built-in height valve piston 1 is provided with an O-ring groove 8, and an O-ring sealing ring that cooperates with the outer wall of the end of the shock absorber is embedded and installed in the O-ring groove 8.

[0032] During use, the sealing connection end 41 of the bladder 4 is fitted and connected to the U-shaped sealing connection groove of the bladder connection end 2. The end of the sealing connection end 41 supports the limiting step surface 22, and the arc groove of the sealing connection end 41 cooperates with the arc protrusion 21 to seal and limit. The shock absorber is sealed and installed at the bottom of the built-in height valve piston 1, and the air intake nozzle 9 is connected for air intake operation, and the exhaust nozzle 10 is connected for exhaust operation. In order to enhance the sealing performance, the inner side of the sealing connection end 41 and the bladder connection end 2 have mutually engaged tooth components (anti-slip mating teeth and anti-slip tooth mating structure), thereby forming a mutually engaged anti-slip sealing combination line.

[0033] 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. A bladder and built-in height valve piston seal combination system, characterized by: The invention comprises a built-in height valve piston (1) and a bladder (4), wherein the built-in height valve piston (1) has a bladder connecting end (2), the end of the bladder (4) has a sealing connecting end (41), one end of the bladder connecting end (2) has a limiting step surface (22), the other end of the bladder connecting end (2) has an arc protrusion (21), the bladder connecting end (2) has an anti-slip sealing line (23) between the limiting step surface (22) and the arc protrusion (21), and the arc protrusion (21) is provided with a sealing line (23). 1) The anti-slip sealing line (23) and the limiting step surface (22) form a U-shaped sealing connection groove; the sealing connection end (41) is sealed and placed in the U-shaped sealing connection groove of the bladder connection end (2); the sealing connection end (41) has an arc groove that matches the arc protrusion (21); the sealing connection end (41) has an arc transition protrusion corresponding to the arc groove; the sealing connection end (41) of the bladder (4) is externally reduced in diameter and is installed with a pressing ring (5).

2. A bladder and built-in height valve piston seal combination system according to claim 1, characterized in that: The interior of the built-in height valve piston (1) has a piston inner cavity that is communicated with the inner cavity of the bladder (4), and the bottom of the built-in height valve piston (1) has a shock absorber assembly hole (71). The shock absorber assembly hole (71) of the built-in height valve piston (1) is sealed and assembled with a shock absorber.

3. The bladder and built-in height valve piston seal combination system according to claim 2, characterized in that: The built-in height valve piston (1) has a piston skirt (12) on the outside. The piston skirt (12) is provided with an air inlet channel and an air outlet channel connected to the piston inner cavity. An air inlet nozzle (9) is correspondingly installed on the air inlet channel, and an air outlet nozzle (10) is correspondingly installed on the air outlet channel.

4. The bladder and built-in height valve piston seal combination system according to claim 1, characterized in that: The anti-slip sealing line (23) is provided with continuously arranged anti-slip teeth, and the sealing connection end (41) is provided with anti-slip matching teeth that engage with the anti-slip teeth.

5. The bladder and built-in height valve piston seal combination system according to claim 1, characterized in that: A built-in reinforcement ring (3) is embedded in the bladder connection end (2) of the built-in height valve piston (1) at a position corresponding to the anti-slip sealing line (23).

6. The bladder and built-in height valve piston seal combination system according to claim 2, characterized in that: The shock absorber assembly hole (71) of the built-in height valve piston (1) is provided with a connecting boss (13), the end of the shock absorber is sealed and embedded in the shock absorber assembly hole (71) and fixedly connected to the connecting boss (13), and the inner wall of the shock absorber assembly hole (71) of the built-in height valve piston (1) is provided with an O-ring groove (8), and an O-ring is embedded and installed in the O-ring groove (8) and matches the outer wall of the end of the shock absorber.

7. The bladder and built-in height valve piston seal combination system according to claim 3, characterized in that: The piston skirt (12) is provided with skirt reinforcement ribs (121), and the piston inner cavity of the built-in height valve piston (1) is provided with inner cavity reinforcement ribs (6).

8. The bladder and built-in height valve piston seal combination system according to claim 1, characterized in that: The built-in height valve piston (1) is provided with a muffler hole (11), and a muffler is installed in the muffler hole (11).

9. The bladder and built-in height valve piston seal combination system according to claim 1, characterized in that: The anti-slip teeth of the anti-slip sealing line (23) are trapezoidal teeth or triangular teeth.

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