Air reservoir with good sealing performance

Abstract

The air cylinder with the good sealing performance comprises a cylinder body, a mounting opening is formed in at least one end of the cylinder body, a sealing plate connected with the inner wall of the air cylinder is arranged at the bottom of the mounting opening, an air outlet is formed in the sealing plate, a sealing cover body matched with the mounting opening is mounted in the mounting opening, and the sealing cover body comprises a sealing layer; a pipe head connecting hole and a gas through hole which are communicated with the gas outlet are formed in the sealing cover body; the risk of gas leakage is reduced through the arrangement of the sealing plate, in addition, the sealing cover body with the sealing layer is matched with the mounting opening, the sealing performance of the cylinder body can be further guaranteed, and it is guaranteed that the gas storage cylinder has good sealing performance; preferably, the sealing cover body comprises a sealing layer, and the sealing layer wraps the sealing cover body, so that the problems that the sealing cover body is corroded, chippings fall into the cylinder body to block the air pipe and the like can be avoided.

Description

Technical Field

[0001] The present application relates to the technical field of air storage cylinders, and specifically to an air storage cylinder with good sealing performance. Background Art

[0002] The car air cylinder is an indispensable and important component of the car's braking system and other parts. The car air cylinder is mainly used to store compressed air. It plays a key role in the car's pneumatic braking system and some other systems that rely on compressed air. If the air cylinder is not sealed well and leaks, it will lead to insufficient air pressure. When the vehicle needs emergency braking, the brake air chamber may not get enough air pressure to push the brake shoe to fit tightly against the brake drum or push the brake caliper to clamp the brake disc, thereby extending the braking distance. In severe cases, it may even cause brake failure, which greatly threatens driving safety.

[0003] The air cylinder is composed of a cylinder body and an air cylinder sealing cover. Therefore, the sealed connection between the air cylinder and the sealing cover is a prerequisite for the automobile air cylinder to achieve good sealing. In the prior art, in order to achieve good sealing, a sealing ring is installed on the sealing cover. The sealing ring is usually made of rubber and other materials, which is easy to age. After the sealing ring ages, the sealing performance of the air cylinder cannot be guaranteed. In addition, after the sealing cover is corroded, debris falls directly into the air cylinder, and problems such as ventilation pipe blockage may occur. Some use welding to seal and fix. The welding method mainly has the following defects: the cylinder body is made of weldable material, has high production cost, and is easy to corrode. In addition, as mentioned above, after the sealing cover and cylinder body are corroded, debris falls directly into the air cylinder, and problems such as ventilation pipe blockage may occur. For example, a new type of air cylinder end cover with application number 201821141957.8 discloses a welding sealing method.

[0004] In summary, a new technical solution needs to be provided to solve the above technical problems. Utility Model Content

[0005] The present application provides an air storage cylinder with good sealing performance, including a cylinder body, at least one end of the cylinder body is provided with an installation opening, the bottom of the installation opening is provided with a sealing plate connected to the inner wall of the air storage cylinder, the sealing plate is provided with an air outlet, a sealing cover body matching with the installation opening is installed in the installation opening, the sealing cover body includes a sealing layer, and the sealing cover body is provided with a pipe head connection hole and a gas through hole connected to the air outlet.

[0006] As a preferred solution, the outer side of the cylinder is wound with basalt fiber.

[0007] As a preferred solution, the material of the cylinder is polyethylene.

[0008] As a preferred solution, the sealing cover body includes a cylinder mounting portion, a component mounting portion is provided on the upper part of the cylinder mounting portion, a tube head connecting portion with a tube head connecting hole is provided on the upper part of the component mounting portion, or a tube head connecting hole is provided on the component mounting portion, and the tube head connecting hole is communicated with the gas through hole provided on the cylinder mounting portion; the outer side of the cylinder mounting portion and the outer side of the component mounting portion are covered with a sealing layer, or the outer side of the cylinder mounting portion, the outer side of the component mounting portion and the outer side of the tube head connecting portion are covered with a sealing layer; the sealing layer cooperates with the mounting port.

[0009] As a preferred solution, the barrel mounting portion includes a bottom surface and a top surface, the diameter of the top surface is smaller than the diameter of the bottom surface, and an inclined surface is formed between the bottom surface and the top surface.

[0010] As a preferred solution, the inclination of the sealing layer is the same as the inclination of the cylinder mounting portion, and the mounting opening is provided with a mounting opening inclined surface that matches the sealing layer.

[0011] As a preferred solution, the sealing layer includes an inclined sealing mounting portion, a sealing covering portion is provided on the sealing mounting portion, and the inclination of the sealing mounting portion is the same as the inclination of the cylinder mounting portion; the mounting port is provided with an installation port inclined surface that cooperates with the sealing mounting portion.

[0012] As a preferred solution, a transition arc is provided between the sealing mounting portion and the sealing covering portion.

[0013] As a preferred solution, the outer side of the barrel mounting portion, the outer side of some component mounting portions, or the outer side of all component mounting portions is covered with a sealing layer.

[0014] As a preferred solution, the outer side of the cylinder mounting portion, the outer side of the component mounting portion, the outer side of part of the pipe head connecting portion or the outer side of all the pipe head connecting portions are covered with a sealing layer.

[0015] As a preferred solution, the sealing layer is a PE layer.

[0016] As a preferred solution, raised strips or grooves are arranged at intervals on the inclined surface.

[0017] As a preferred solution, a plurality of through holes are provided on the inclined surface.

[0018] As a preferred solution, a plurality of through holes are provided on the inclined surface and the raised strip or the inclined surface and the groove.

[0019] As a preferred solution, an internal thread is provided in the pipe head connecting hole.

[0020] As a preferred solution, weight-reducing grooves are provided at the lower portions of the barrel mounting portion and the component mounting portion.

[0021] The provision of the sealing plate in the present application reduces the risk of gas leakage. In addition, the sealing cover with a sealing layer cooperates with the mounting port to further ensure the sealing of the cylinder and ensure that the gas storage cylinder has good sealing. Preferably, the sealing cover in the present application includes a sealing layer, and the coating of the sealing layer can avoid corrosion of the sealing cover, debris falling into the cylinder and clogging the air pipe, and other problems. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of this application;

[0023] Figure 2 A top view of the sealing cover of the connection between the two pipe heads;

[0024] Figure 3 yes Figure 2 sectional view of

[0025] Figure 4 This is a schematic diagram of the sealing cover of the two pipe head connection parts of the present application at angle 1;

[0026] Figure 5 This is a schematic diagram of the sealing cover of the two pipe head connection parts of the present application at angle 2;

[0027] Figure 6 This is a schematic diagram of a portion of the sealing cover of the connection portion between the two pipe heads of the present application at angle 1;

[0028] Figure 7 This is a schematic diagram of a portion of the sealing cover of the connection portion of the two pipe heads of the present application from an angle 2;

[0029] Figure 8 This is a schematic diagram of a portion of the sealing cover of the connection portion between the two pipe heads of the present application from angle three;

[0030] Figure 9 1 is a top view of the sealing cover of the three pipe head connection parts of the present application;

[0031] Figure 10 yes Figure 9 sectional view of

[0032] Figure 11 This is a schematic diagram of the sealing cover of the three pipe head connecting parts of the present application from angle 1;

[0033] Figure 12 This is a schematic diagram of the sealing cover of the three pipe head connecting parts of the present application from an angle 2;

[0034] Figure 13 This is a schematic diagram of a portion of the sealing cover of the three pipe head connection parts of the present application from angle 1;

[0035] Figure 14This is a schematic diagram of a partial sealing cover of the three pipe head connection parts of the present application from an angle 2;

[0036] Figure 15 This is a schematic diagram of the third angle of the partial sealing cover of the three pipe head connection parts of the present application;

[0037] Figure 16 This is a schematic diagram of a portion of a sealing cover of a pipe head connection portion of the present application at angle 1;

[0038] Figure 17 This is a schematic diagram of a portion of a sealing cover of a pipe head connection portion of the present application from an angle 2;

[0039] Figure 18 This is a top view of a sealing cover of a pipe head connection portion of the present application;

[0040] Figure 19 This is a side view of a sealing cover of a pipe head connection portion of the present application;

[0041] Figure 20 This is a schematic diagram of a sealing cover of a pipe head connection portion of the present application from angle 1;

[0042] 1. Cylinder; 2. Mounting port; 3. Sealing plate; 4. Air outlet; 5. Sealing cover; 6. Pipe head connecting hole; 7. Gas through hole; 8. Sealing layer; 9. Cylinder mounting portion; 10. Component mounting portion; 11. Internal thread; 12. Bottom surface; 13. Top surface; 14. Inclined surface; 15. Groove; 16. Through hole; 17. Weight reduction groove; 18. Pipe head connecting portion; 19. Raised strip; 20. Sealing mounting portion; 21. Sealing covering portion; 22. Transition arc; 23. Mounting port bevel. DETAILED DESCRIPTION

[0043] The following is combined with Figure 1 To the attached Figure 20 The specific implementation of the present invention is described in detail. It should be noted that the specific implementation described herein is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0044] Example 1:

[0045] This embodiment provides an air storage cylinder with good sealing performance, including a cylinder 1, which is preferably cylindrical and made of polyethylene and formed by injection molding or the like. At least one end of the cylinder 1 is provided with a mounting port 2. Figure 1As shown, mounting openings 2 are provided at both ends of the cylinder 1, but the structure of the mounting openings 2 is exactly the same and will not be repeated here; a sealing plate 3 connected to the inner wall of the gas cylinder 1 is provided at the bottom of the mounting opening 2, and an air outlet 4 is provided on the sealing plate 3, and a sealing cover 5 matched therewith is installed in the mounting opening 2, and the sealing cover 5 includes a sealing layer 8, and the sealing cover 5 is provided with a pipe head connecting hole 6 and a gas through hole 7 connected to the air outlet 4; the sealing layer 8 cooperates with the mounting opening 2, further improving the sealing performance of the gas cylinder, and avoiding the aging of the sealing ring and leakage; the sealing cover 5 is corroded, and debris falls into the cylinder 1 to block the air pipe and other problems.

[0046] In order to improve the compressive strength of the cylinder 1 , basalt fiber is wound around the outer side of the cylinder 1 .

[0047] Example 2:

[0048] like Figures 16-20 As shown, this embodiment provides a structure of a sealing cover body 5, which includes a cylinder mounting portion 9, and a component mounting portion 10 is provided on the upper part of the cylinder mounting portion 9. The cylinder mounting 9 and the component mounting portion 10 are integrally formed and are turned by carbon steel, aluminum alloy or the like. A pipe head connecting hole 6 is provided on the upper part of the component mounting portion 10. The pipe head connecting hole 6 is used to connect a gas pipeline, etc. Preferably, an internal thread 11 is provided in the pipe head connecting hole 6, and the joint of the gas pipeline is connected to the pipe head connecting hole 6 by a thread, which facilitates the connection and ensures the stability of the connection; the pipe head connecting hole 6 is connected to the gas through hole 7 provided on the cylinder mounting portion 9; the outer side of the cylinder mounting portion 9, part of the component mounting portion 10 or the outer side of all the component mounting portions 10 are covered with a sealing layer 8, and the sealing layer 8 is a PE layer. The sealing layer 8 is coated on the outer side of the cylinder mounting portion 9, part of the component mounting portion 10 or the outer side of all the component mounting portions 10 by injection molding. Figure 20 As shown in the schematic diagram, it is covered on the outside of the cylinder mounting portion 9 and the outside of the partial component mounting portion 10. The partial component mounting portion 10 is preferably covered to the component mounting portion 10 at one-half to two-thirds of the way up from the cylinder mounting portion 9.

[0049] Preferably, in order to facilitate the installation of the sealing cover 5 and the cylinder 1 and improve the installation efficiency, the cylinder mounting portion 9 includes a bottom surface 12 and a top surface 13, the diameter of the top surface 13 is smaller than the diameter of the bottom surface 12, and there is an inclined surface 14 between the bottom surface 12 and the top surface 13, that is, the cylinder mounting portion 9 has a certain slope, which is convenient for the installation of the sealing cover 5; in order to enhance the strength of the connection between the sealing layer 8 and the cylinder mounting portion 9, a groove 15 is provided on the inclined surface 14, and more preferably, a plurality of through holes 16 are provided on the inclined surface 14 and the groove 15; the injection molded sealing layer 8 flows into the groove 15 and the through hole 16, thereby enhancing the connection strength between the cylinder mounting portion 9 and the sealing layer 8, so that the sealing layer 8 is not easy to fall off; the slope of the sealing layer 8 is the same as the slope of the cylinder mounting portion 9; the mounting port 2 is provided with a mounting port inclined surface 23 that cooperates with the sealing layer 8, which facilitates the installation of the sealing cover 5, improves the adaptability, and ensures the sealing.

[0050] Preferably, in order to reduce the manufacturing cost, a weight-reducing groove 17 is provided at the lower portion of the barrel mounting portion 9 and the component mounting portion 10 .

[0051] Example 3:

[0052] like Figures 2 to 15 As shown, this embodiment provides a sealing cover body 5 of another structure, including a cylinder mounting portion 9, a component mounting portion 10 is provided on the upper part of the cylinder mounting portion 9, and a pipe head connecting portion 18 with a pipe head connecting hole 6 is provided on the upper part of the component mounting portion 10. The pipe head connecting portions 18 in this embodiment are 2 and 3 as examples. The cylinder mounting portion 9, the component mounting portion 10, and the pipe head connecting portion 18 are integrally formed and are turned by carbon steel, aluminum alloy, etc. The pipe head connecting hole 6 is used to connect a gas pipeline, etc. Preferably, an internal thread 11 is provided in the pipe head connecting hole 6 , the joint of the gas pipeline is connected to the pipe head connecting hole 6 by a threaded connection, which facilitates the connection and ensures the stability of the connection; the pipe head connecting hole 6 is connected to the gas through hole 7 provided on the cylinder mounting portion 9; the outer side of the cylinder mounting portion 9, the outer side of the component mounting portion 10, part of the pipe head connecting portion 18 or the outer side of all the pipe head connecting portions 18 are covered with a sealing layer 8, and the sealing layer 8 is made of a PE layer. The sealing layer 8 is coated on the outer side of the cylinder mounting portion 9, the outer side of the component mounting portion 10, part of the pipe head connecting portion 18 or the outer side of all the pipe head connecting portions 18 by injection molding. In this embodiment, Figure 3 、 Figure 10 As shown in the schematic diagram, it is covered on the outside of the cylinder mounting portion 9, the outside of the component mounting portion 10, and the outside of part of the pipe head connection portion 18. Part of the pipe head connection portion 18 is preferably covered to the pipe head connection portion 18 at one-half to two-thirds upward from the component mounting portion 10.

[0053] Preferably, in order to facilitate the installation of the sealing cover 5 and the gas cylinder and improve the installation efficiency, the cylinder mounting portion 9 includes a bottom surface 12 and a top surface 13, the diameter of the top surface 13 is smaller than the diameter of the bottom surface 12, and there is an inclined surface 14 between the bottom surface 12 and the top surface 13, that is, the cylinder mounting portion 9 has a certain slope, which facilitates the installation of the sealing cover 5; in order to enhance the strength of the connection between the sealing layer 8 and the cylinder mounting portion 9, a raised strip 19 is provided on the inclined surface 14, and more preferably, a plurality of through holes 16 are provided on the inclined surface 14 and the raised strip 19; the injected PE flows into the raised strip 19 and the groove between the inclined surface 14 and the through hole 16, thereby enhancing the connection strength between the cylinder mounting portion 9 and the sealing layer 8, so that the sealing layer 8 is not easy to fall off; the sealing layer 8 in this embodiment includes an inclined sealing mounting portion 20, and a sealing covering portion 21 is provided on the sealing mounting portion 20, and a transition arc 22 is provided between the sealing mounting portion 20 and the sealing covering portion 21; the inclination of the sealing mounting portion 20 is the same as the inclination of the cylinder mounting portion 9; the mounting port 2 is provided with a mounting port inclined surface 23 that cooperates with the sealing layer 8, which facilitates the installation of the sealing cover 5, improves the adaptability, and ensures the sealing performance.

[0054] To sum up, due to the adoption of the above-mentioned technical solution, the setting of the sealing plate 3 in the present application reduces the risk of gas leakage. In addition, the sealing cover 5 with the sealing layer 8 cooperates with the mounting port 2 to further ensure the sealing of the cylinder 1 and ensure that the gas storage cylinder has good sealing. Preferably, the sealing cover 5 in the present application includes a sealing layer 8, and the coating of the sealing layer 8 can avoid corrosion of the sealing cover 5, debris falling into the cylinder 1 and clogging the air pipe, and other problems.

[0055] The devices, connection relationships, etc. not specifically described above belong to the existing technology and will not be described in detail in this utility model.

[0056] The preferred embodiment of the present application is described in detail above in conjunction with the accompanying drawings. However, the present application is not limited to the specific details in the above-mentioned embodiments. Within the technical concept of the present application, various simple modifications can be made to the technical solution of the present application, and these simple modifications all fall within the scope of protection of the present application.

[0057] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any appropriate manner unless there is any contradiction. In order to avoid unnecessary repetition, the various possible combinations of this application will not be described separately.

[0058] In addition, the various implementation methods of the present application can be arbitrarily combined, as long as they do not violate the concept of the present application, and they should also be regarded as the contents disclosed in the present application.

Claims

1. A gas storage cylinder with good sealing performance, comprising a cylinder (1), wherein at least one end of the cylinder (1) is provided with a mounting opening (2), characterized in that: The bottom of the installation opening (2) is provided with a sealing plate (3) connected to the inner wall of the cylinder (1), and the sealing plate (3) is provided with an air outlet (4). A sealing cover (5) matching the sealing cover is installed in the installation opening (2), and the sealing cover (5) includes a sealing layer (8). The sealing cover (5) is provided with a pipe head connection hole (6) and a gas through hole (7) communicating with the air outlet (4).

2. The air storage cylinder with good sealing performance according to claim 1, characterized in that: The outer side of the cylinder (1) is wound with basalt fibers.

3. The air storage cylinder with good sealing performance according to claim 1, characterized in that: The material of the cylinder (1) is polyethylene.

4. The air storage cylinder with good sealing performance according to claim 1, characterized in that: The sealing cover (5) comprises a cylinder mounting portion (9), a component mounting portion (10) is provided on the upper portion of the cylinder mounting portion (9), a pipe head connecting portion (18) with a pipe head connecting hole (6) is provided on the upper portion of the component mounting portion (10), or a pipe head connecting hole (6) is provided on the component mounting portion (10), and the pipe head connecting hole (6) is connected to the gas through hole (7) provided on the cylinder mounting portion (9); the outer side of the cylinder mounting portion (9) and the outer side of the component mounting portion (10) are covered with a sealing layer (8), or the outer side of the cylinder mounting portion (9), the outer side of the component mounting portion (10) and the outer side of the pipe head connecting portion (18) are covered with a sealing layer (8); the sealing layer (8) cooperates with the mounting port (2).

5. The air storage cylinder with good sealing performance according to claim 4, characterized in that: The barrel mounting portion (9) comprises a bottom surface (12) and a top surface (13); the diameter of the top surface (13) is smaller than the diameter of the bottom surface (12); and an inclined surface (14) is formed between the bottom surface (12) and the top surface (13).

6. The air storage cylinder with good sealing performance according to claim 1, characterized in that: The inclination of the sealing layer (8) is the same as the inclination of the cylinder mounting portion (9), and the mounting opening (2) is provided with a mounting opening inclined surface (23) that matches the sealing layer (8).

7. The air storage cylinder with good sealing performance according to claim 1, characterized in that: The sealing layer (8) comprises an inclined sealing mounting portion (20), a sealing covering portion (21) is provided on the sealing mounting portion (20), and the inclination of the sealing mounting portion (20) is the same as the inclination of the barrel mounting portion (9); and a mounting port inclined surface (23) that cooperates with the sealing mounting portion (20) is provided at the mounting port (2).

8. The air storage cylinder with good sealing performance according to claim 1, characterized in that: The outer side of the cylinder mounting portion (9), the outer side of some component mounting portions (10), or the outer side of all component mounting portions (10) is covered with a sealing layer (8).

9. The air storage cylinder with good sealing performance according to claim 1, characterized in that: The outer side of the cylinder mounting portion (9), the outer side of the component mounting portion (10), the outer side of part of the pipe head connecting portion (18), or the outer side of all the pipe head connecting portions (18) is covered with a sealing layer (8).

10. The air storage cylinder with good sealing performance according to claim 1, characterized in that: The sealing layer (8) is a PE layer.

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