Sealing cover body for air cylinder

Abstract

The utility model provides a sealing cover body for an air cylinder, which comprises a cylinder body mounting part, the upper part of the cylinder body mounting part is provided with a component mounting part, the upper part of the component mounting part is provided with a pipe head connecting part provided with a pipe head connecting hole, or the component mounting part is provided with the pipe head connecting hole, and the pipe head connecting hole is communicated with a gas through hole formed in the cylinder body mounting part; the outer side of the cylinder mounting part and the outer side of the component mounting part are coated with sealing layers, or the outer side of the cylinder mounting part, the outer side of the component mounting part and the outer side of the pipe head connecting part are coated with sealing layers; the sealing cover body is simple in structure, the situation caused by aging of the sealing ring can be avoided by adopting the structure of the sealing layer, the sealing layer and the cylinder body are connected through interference fit, welding is not needed, the installation process is simplified, and the interior of the cylinder body can be conveniently cleaned and maintained; in addition, the sealing layer is coated, 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 application belongs to the technical field of gas storage cylinders, and particularly relates to a sealing cover body for a gas storage cylinder. BACKGROUND

[0002] An automobile gas storage cylinder is an important part of an automobile braking system and the like, and is mainly used for storing compressed air. The automobile gas storage cylinder plays a key role in an air pressure braking system of an automobile and other systems that rely on compressed air. The gas storage cylinder is composed of a barrel body and a gas storage cylinder sealing cover. The gas storage cylinder sealing cover is an important part of the automobile gas storage cylinder and plays a key role in guaranteeing the normal function and safety of the gas storage cylinder. The main function of the gas storage cylinder sealing cover is to seal the gas storage cylinder to prevent the compressed air in the cylinder from leaking. Through close cooperation with the barrel body of the gas storage cylinder and the assistance of the sealing element, the sealing cover can still maintain good sealing performance when the high-pressure compressed air is stored in the cylinder, so as to ensure that the compressed air does not escape from the top opening of the cylinder body. This is very important for maintaining the stability of the air pressure in the gas storage cylinder and ensuring the normal operation of the entire air pressure braking system or other air-using systems.

[0003] The sealing cover body for the gas storage cylinder in the prior art has a complex structure and a complicated processing process, which leads to low processing efficiency. In addition, the sealing ring is used for sealing, and the sealing ring is prone to aging after long-term use, which leads to poor sealing effect.

[0004] In order to solve the above technical problems, a new type of gas storage cylinder end cover with the application number 201821141957.8 discloses a technical scheme, which comprises a cover body and a joint welded on a through hole of the cover body. The bottom of the joint is processed into a chamfer structure. A pressing platform is arranged on one side of the sidewall of the cover body. A cross-shaped reinforcing plate is welded on the through hole of the inner sidewall of the cover body. The reinforcing plate divides one end of the through hole into four equal apertures. The cross section of the reinforcing plate is triangular. The joint, the end cover and the cylinder body are welded together, which can ensure that there is no air leakage and the threads are not deformed, and can meet the assembly performance and sealing performance. In addition, the reinforcing plate has a good supporting effect, which can effectively prevent the deformation of the through hole part of the cylinder body when the joint is subjected to external force.

[0005] The application needs to weld the joint, the end cover and the cylinder body together, which is only suitable for the barrel body made of a weldable material. In addition, the sealing cover is not easy to disassemble by welding, which has problems such as difficulty in cleaning the inside of the cylinder body and difficulty in replacing the sealing cover.

[0006] Therefore, it is necessary to provide a new technical scheme to solve the above technical problems. CONTENT OF THE UTILITY MODEL

[0007] The application provides a sealing cover for a gas cylinder, which comprises a cylinder mounting portion, an upper portion of the cylinder mounting portion is provided with a component mounting portion, an upper portion of the component mounting portion is provided with a pipe head connecting portion provided with a pipe head connecting hole or the component mounting portion is provided with a pipe head connecting hole, the pipe head connecting hole is in communication with a gas through hole provided in the cylinder mounting portion; the outer side of the cylinder mounting portion, the outer side of the component mounting portion or the outer side of the pipe head connecting portion is covered with a sealing layer.

[0008] As a preferred solution, the outer side of the cylinder mounting portion, the outer side of part of the component mounting portion or the outer side of all the component mounting portions is covered with a sealing layer.

[0009] 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 is covered with a sealing layer.

[0010] As a preferred solution, the sealing layer is a PE layer.

[0011] As a preferred solution, the cylinder mounting portion comprises a bottom surface and a top surface, the diameter of the top surface is smaller than that of the bottom surface, and an inclined surface is arranged between the bottom surface and the top surface.

[0012] As a preferred solution, a convex strip or a groove is arranged on the inclined surface at intervals.

[0013] As a preferred solution, a plurality of through holes are arranged on the inclined surface.

[0014] As a preferred solution, a plurality of through holes are arranged on the inclined surface and the convex strip or the inclined surface and the groove.

[0015] As a preferred solution, an internal thread is arranged in the pipe head connecting hole.

[0016] As a preferred solution, a weight-reducing groove is arranged in the lower portion of the cylinder mounting portion and the component mounting portion.

[0017] As a preferred solution, the inclination of the sealing layer is the same as that of the cylinder mounting portion.

[0018] As a preferred solution, the sealing layer comprises an inclined sealing mounting portion, a sealing covering portion is arranged on the sealing mounting portion, and the inclination of the sealing mounting portion is the same as that of the cylinder mounting portion.

[0019] As a preferred solution, an excessive circular arc is arranged between the sealing mounting portion and the sealing covering portion.

[0020] The sealing cover body of the application has simple structure, and the structure of the sealing layer can avoid the situation caused by aging of the sealing ring. The sealing layer is connected with the cylinder through interference fit and heat melting, and does not need to be welded, which simplifies the installation process and facilitates cleaning and maintenance of the inside of the cylinder. In addition, the sealing layer can avoid corrosion of the sealing cover body and prevent debris from falling into the cylinder and blocking the air pipe. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a top view of the sealing cover body of two pipe head connecting parts of the application;

[0022] Figure 2 is a sectional view of Figure 1 ;

[0023] Figure 3 is a schematic view of angle one of the sealing cover body of two pipe head connecting parts of the application;

[0024] Figure 4 is a schematic view of angle two of the sealing cover body of two pipe head connecting parts of the application;

[0025] Figure 5 is a schematic view of angle one of the partial sealing cover body of two pipe head connecting parts of the application;

[0026] Figure 6 is a schematic view of angle two of the partial sealing cover body of two pipe head connecting parts of the application;

[0027] Figure 7 is a schematic view of angle three of the partial sealing cover body of two pipe head connecting parts of the application;

[0028] Figure 8 is a top view of the sealing cover body of three pipe head connecting parts of the application;

[0029] Figure 9 is a sectional view of Figure 8 ;

[0030] Figure 10 is a schematic view of angle one of the sealing cover body of three pipe head connecting parts of the application;

[0031] Figure 11 is a schematic view of angle two of the sealing cover body of three pipe head connecting parts of the application;

[0032] Figure 12 is a schematic view of angle one of the partial sealing cover body of three pipe head connecting parts of the application;

[0033] Figure 13 is a schematic view of angle two of the partial sealing cover body of three pipe head connecting parts of the application;

[0034] Figure 14 is a schematic view of angle three of the partial sealing cover of the three pipe head connecting portions of the present application;

[0035] Figure 15 is a schematic view of angle one of the partial sealing cover of the one pipe head connecting portion of the present application;

[0036] Figure 16 is a schematic view of angle two of the partial sealing cover of the one pipe head connecting portion of the present application;

[0037] Figure 17 is a top view of the sealing cover of the one pipe head connecting portion of the present application;

[0038] Figure 18 is a side view of the sealing cover of the one pipe head connecting portion of the present application;

[0039] Figure 19 is a schematic view of angle one of the sealing cover of the one pipe head connecting portion of the present application;

[0040] 1, cylinder mounting portion; 2, component mounting portion; 3, pipe head connecting hole; 4, internal thread; 5, gas through hole; 6, sealing layer; 7, bottom surface; 8, top surface; 9, inclined surface; 10, groove; 11, through hole; 12, weight reduction groove; 13, pipe head connecting portion; 14, protruding strip; 15, sealing mounting portion; 16, sealing covering portion; 17, excessive circular arc. DETAILED DESCRIPTION

[0041] The following will be described in detail in combination with the accompanying drawings. Figure 1 to the accompanying drawings Figure 19 The specific embodiments of the present application will be described in detail. It should be noted that the specific embodiments described herein are only used to illustrate and explain the present application, and are not used to limit the present application.

[0042] Example One:

[0043] As Figures 15-19As shown, the present embodiment provides a sealing cover for gas cylinder, which comprises a cylinder mounting part 1, an upper part of the cylinder mounting part 1 is provided with a component mounting part 2, the cylinder mounting part 1 and the component mounting part 2 are integrally formed, and are turned by carbon steel, aluminum alloy or other materials, an upper part of the component mounting part 2 is provided with a pipe head connecting hole 3, the pipe head connecting hole 3 is used for connecting gas pipeline, preferably, an internal thread 4 is formed in the pipe head connecting hole 3, a joint of the gas pipeline is connected with the pipe head connecting hole 3 through thread connection, which is convenient for connection and ensures the stability of connection; the pipe head connecting hole 3 is communicated with a gas through hole 5 provided in the cylinder mounting part 1; an outer side of the cylinder mounting part 1, an outer side of the partial component connecting part 2 or the outer side of the whole component connecting part 2 is covered with a sealing layer 6, the sealing layer 6 is made of PE layer, and the sealing layer 6 is covered on the outer side of the cylinder mounting part 1, the outer side of the partial component connecting part 2 or the outer side of the whole component connecting part 2 through injection molding, and the present embodiment is Figure 19 As shown in the schematic view of the present embodiment, the outer side of the cylinder mounting part 1 and the outer side of the partial component connecting part 2 are covered, and the partial component connecting part 2 is preferably covered to the component connecting part 2 at one half to two thirds of the cylinder mounting part 1 upward.

[0044] Preferably, in order to facilitate the installation of the sealing cover and the gas cylinder and improve the installation efficiency, the cylinder mounting part 1 comprises a bottom surface 7 and a top surface 8, a diameter of the top surface 8 is smaller than a diameter of the bottom surface 7, and an inclined surface 9 is arranged between the bottom surface 7 and the top surface 8, that is, the cylinder mounting part 1 has a certain slope, which facilitates the installation of the sealing cover; in order to enhance the connection strength between the sealing layer 6 and the cylinder mounting part 1, a groove 10 is arranged on the inclined surface 9, more preferably, a plurality of through holes 11 are arranged on the inclined surface 9 and the groove 10; the injection-molded sealing layer 6 flows into the groove 10 and the through holes 11, which enhances the connection strength between the cylinder mounting part 1 and the sealing layer 6 and makes the sealing layer 6 not easy to fall off; the slope of the sealing layer 6 is the same as the slope of the cylinder mounting part 1.

[0045] Preferably, in order to reduce the manufacturing cost, a weight-reducing groove 12 is formed in a lower part of the cylinder mounting part 1 and the component mounting part 2.

[0046] Embodiment two:

[0047] As Figures 1 to 14As shown, this embodiment provides a sealing cover for a gas storage cylinder, including a cylinder mounting portion 1, a component mounting portion 2 is provided on the upper part of the cylinder mounting portion 1, and a pipe head connecting portion 13 with a pipe head connecting hole 3 is provided on the upper part of the component mounting portion 2. In this embodiment, the pipe head connecting portions 13 are taken as two and three examples. The cylinder mounting portion 1, the component mounting portion 2, and the pipe head connecting portion 13 are integrally formed and are machined using carbon steel, aluminum alloy, or other materials; the pipe head connecting hole 3 is used to connect a gas pipeline, etc. Preferably, an internal thread 4 is provided in the pipe head connecting hole 3, and the gas The joint of the body pipe is connected to the pipe head connection hole 3 by a threaded connection, which facilitates the connection and ensures the stability of the connection; the pipe head connection hole 3 is connected to the gas through hole 5 provided on the cylinder mounting part 1; the outer side of the cylinder mounting part 1, the outer side of the component connecting part 2, part of the pipe head connection part 13 or the outer side of all the pipe head connection parts 13 are covered with a sealing layer 6, and the sealing layer 6 adopts a PE layer. The sealing layer 6 is coated on the outer side of the cylinder mounting part 1, the outer side of the component connecting part 2, part of the pipe head connection part 13 or the outer side of all the pipe head connection parts 13 by injection molding. Figure 2 、 Figure 9 As shown in the schematic diagram, it is covered on the outside of the cylinder mounting portion 1, the outside of the component connection portion 2, and the outside of part of the pipe head connection portion 13. Part of the pipe head connection portion 13 is preferably covered to the pipe head connection portion 13 at one-half to two-thirds upward from the component connection portion 2.

[0048] Preferably, in order to facilitate the installation of the sealing cover and the gas cylinder and improve the installation efficiency, the cylinder mounting portion 1 includes a bottom surface 7 and a top surface 8, the diameter of the top surface 8 is smaller than the diameter of the bottom surface 7, and there is an inclined surface 9 between the bottom surface 7 and the top surface 8, that is, the cylinder mounting portion 1 has a certain slope, which facilitates the installation of the sealing cover; in order to enhance the strength of the connection between the sealing layer 6 and the cylinder mounting portion 1, a raised strip 14 is provided on the inclined surface 9, and more preferably, a plurality of raised strips 14 are provided on the inclined surface 9 and the raised strip 14. Through hole 11; the injected PE flows into the groove between the raised strip 14 and the inclined surface 9 and the through hole 11, thereby enhancing the connection strength between the cylinder mounting portion 1 and the sealing layer 6, making the sealing layer less likely to fall off; the sealing layer 6 in this embodiment includes an inclined sealing mounting portion 15, on which a sealing covering portion 16 is provided, and a transition arc 17 is provided between the sealing mounting portion 15 and the sealing covering portion 16; the inclination of the sealing mounting portion 15 is the same as that of the cylinder mounting portion 1.

[0049] In summary, due to the adoption of the technical scheme, the sealing cover body has simple structure, the structure of the sealing layer can avoid the situation caused by aging of the sealing ring, the sealing layer is connected with the cylinder through interference fit, welding is not needed, the installation process is simplified, and the inside of the cylinder is convenient to clean and maintain; in addition, the sealing layer is coated, corrosion of the sealing cover body can be avoided, and problems such as that debris falls into the cylinder to block the air pipe can be avoided.

[0050] The devices and connection relationships not specifically described above all belong to the prior art, and the utility model will not be specifically described here.

[0051] The preferred mode of the application is described in detail above in combination with the drawings, but the application is not limited to the specific details in the above embodiments, and various simple modifications can be made to the technical scheme of the application within the technical concept of the application, and these simple modifications all belong to the protection scope of the application.

[0052] In addition, it should be noted that various specific technical features described in the above specific embodiments can be combined in any appropriate manner without contradiction, and various possible combinations of the application will not be described again in order to avoid unnecessary repetition.

[0053] In addition, various different embodiments of the application can also be combined in any manner, as long as they do not deviate from the idea of the application, and the application should also be considered as disclosed content of the application.

Claims

1. A sealing cover for an air storage cylinder, comprising a cylinder mounting portion (1), characterized in that: The upper portion of the cylinder mounting portion (1) is provided with a component mounting portion (2), and the upper portion of the component mounting portion (2) is provided with a pipe head connecting portion (13) with a pipe head connecting hole (3), or the component mounting portion (2) is provided with a pipe head connecting hole (3), and the pipe head connecting hole (3) is connected to a gas through hole (5) provided in the cylinder mounting portion (1); the outer side of the cylinder mounting portion (1) and the outer side of the component mounting portion (2) are covered with a sealing layer (6), or the outer side of the cylinder mounting portion (1), the component mounting portion (2), and the outer side of the pipe head connecting portion (13) are covered with a sealing layer (6).

2. The sealing cover for an air storage cylinder according to claim 1, characterized in that: The sealing layer (6) is a PE layer.

3. The sealing cover for an air storage cylinder according to claim 1, characterized in that: The barrel mounting portion (1) comprises a bottom surface (7) and a top surface (8); the diameter of the top surface (8) is smaller than the diameter of the bottom surface (7); and an inclined surface (9) is formed between the bottom surface (7) and the top surface (8).

4. The sealing cover for an air cylinder according to claim 3, characterized in that: The inclined surface (9) is provided with a raised strip (14) or a groove (10).

5. The sealing cover for an air storage cylinder according to claim 3, characterized in that: A plurality of through holes (11) are provided on the inclined surface (9).

6. The sealing cover for an air storage cylinder according to claim 4, characterized in that: A plurality of through holes (11) are provided on the inclined surface (9) and the raised strip (14) or on the inclined surface (9) and the groove (10).

7. The sealing cover for an air cylinder according to claim 1, characterized in that: An internal thread (4) is provided in the pipe head connecting hole (3).

8. The sealing cover for an air storage cylinder according to claim 1, characterized in that: A weight-reducing groove (12) is provided at the lower portion of the cylinder mounting portion (1) and the component mounting portion (2).

9. The sealing cover for an air cylinder according to claim 1, characterized in that: The inclination of the sealing layer (6) is the same as the inclination of the cylinder mounting portion (1).

10. The sealing cover for an air storage cylinder according to claim 1, characterized in that: The sealing layer (6) comprises an inclined sealing mounting portion (15), a sealing covering portion (16) is provided on the sealing mounting portion (15), and the inclination of the sealing mounting portion (15) is the same as the inclination of the cylinder mounting portion (1).

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