Sealing structure of high-pressure gas storage cylinder

Abstract

The utility model relates to the technical field of high-pressure gas storage equipment, in particular to a high-pressure gas storage bottle sealing structure which is installed on a high-pressure gas storage bottle body, a sealing opening is formed in the top face of the high-pressure gas storage bottle body, and an attaching pad is arranged on the upper surface of the high-pressure gas storage bottle body. And the sealing column is installed in the sealing opening, a sealing gasket is arranged on the lower surface of the sealing column, and an attaching ring is arranged on the lower surface of the sealing gasket. The mounting outer ring is screwed on the outer surface of the sealing column, the mounting outer ring can be easily screwed on the outer surface of the attaching pad through the design between the adaptive thread on the inner wall of the mounting outer ring and the mounting thread, and when the sealing ring abuts against the upper surface of the attaching pad, the mounting outer ring is stopped from being screwed. And therefore, the position of the sealing column can be limited through the design of the mounting outer ring and the sealing ring, and the overall limiting effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of high-pressure gas storage equipment, in particular to a sealing structure for a high-pressure gas storage bottle. Background Art

[0002] As the pressure of gas cylinders increases, the design of gas cylinder sealing structures becomes increasingly difficult. The working pressure of high-pressure hydrogen storage cylinders reaches 70MPa, which places very high demands on the reliability of the sealing structure.

[0003] In this regard, China applied for patent number: CN218523408U, which discloses a bottle mouth sealing structure of a high-pressure gas storage bottle, a bottle mouth sealing structure of a high-pressure gas storage bottle, comprising a bottle mouth valve seat with a central hole and a plastic liner, the top of the plastic liner covers the lower end of the bottle mouth valve seat, a hollow bottle mouth valve seat liner is arranged in the central hole of the bottle mouth valve seat, the bottle mouth valve seat liner is threadedly matched with the bottle mouth valve seat and abuts against the part of the plastic liner extending into the central hole, and a bottle mouth valve is mounted on the upper end of the bottle mouth valve seat. The utility model can achieve high-pressure multi-stage sealing, and at the same time has a simple structure and reliable sealing.

[0004] However, in actual use, the bottle mouth cannot be sealed as a whole, and multiple sets of components need to be installed in the bottle during installation. However, once more components are installed, the gaps between the components will become more, which will affect the sealing effect. At the same time, the seals need to be fixed and limited uniformly. Therefore, it has become an urgent problem to be solved to improve and perfect the above problems. Utility Model Content

[0005] The utility model aims to provide a sealing structure for a high-pressure gas storage bottle to solve the problem that the bottle mouth cannot be sealed as a whole in the above-mentioned background technology, and multiple groups of components need to be installed in the bottle during installation. However, once more components are installed, the gaps between the components will increase, which will affect the sealing effect. At the same time, the sealing parts need to be fixed and limited uniformly.

[0006] To achieve the above object, the utility model provides the following technical solutions: a high-pressure gas cylinder sealing structure, installed on a high-pressure gas cylinder body, a sealing opening is opened on the top surface of the high-pressure gas cylinder body, and a fitting pad is arranged on the upper surface of the high-pressure gas cylinder body;

[0007] A sealing column is installed inside the sealing port, a sealing gasket is arranged on the lower surface of the sealing column, and a fitting ring is arranged on the lower surface of the sealing gasket.

[0008] Preferably, a groove is provided inside the fitting ring, a fastening ring is provided inside the groove, and the groove and the fastening ring are adapted to each other.

[0009] Preferably, the outer surface of the sealing column is provided with a mounting outer ring, and the inner side wall of the mounting outer ring is provided with an adapting thread.

[0010] Preferably, the outer surface of the sealing column is provided with a mounting thread, and the sealing column and the mounting outer ring are adapted to each other.

[0011] Preferably, a sealing ring is provided on the outer surface of the mounting outer ring, and the lower surface of the sealing ring contacts the upper surface of the fitting pad.

[0012] Preferably, a fixing column is provided inside the high-pressure gas storage cylinder body, a top ring is fixedly connected to the top surface of the fixing column, and a stabilizing plate is fixedly connected to the back surface of the top ring.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The sealing structure of the high-pressure gas storage cylinder is provided with a sealing port, a fitting pad, a sealing column, a sealing pad, a fitting ring, a groove, a fastening ring, an installation outer ring, an installation thread, an adapting thread and a sealing ring. When in use, the sealing column can be installed as a whole inside the sealing port, and the sealing column is installed inside the sealing port. At this time, the upper surfaces of the sealing pad and the fitting ring will be installed against the inner wall of the high-pressure gas storage cylinder body. When the gas pressure inside the high-pressure gas storage cylinder body is high, the gas pressure will squeeze the fitting ring, so that the fastening ring will be installed in a fitting manner inside the high-pressure gas storage cylinder body. On the top surface of the wall, the high-pressure gas cylinder body can be sealed in an integrated manner through the design of the sealing gasket, the fitting ring and the sealing column, and the overall sealing effect is good. Then the outer ring is screwed on the outer surface of the sealing column, and the design between the matching thread on the inner wall of the outer ring and the installation thread can easily screw the installed outer ring on the outer surface of the fitting gasket. When the sealing ring touches the upper surface of the fitting gasket, the installation outer ring stops being screwed, so that the design of the installation outer ring and the sealing ring can limit the position of the sealing column, and the overall limiting effect is good, which reflects the practicality of the design.

[0015] 2. The sealing structure of the high-pressure gas storage cylinder is provided with a fixed column, a top ring and a stabilizing plate. When in use, after the overall installation of the outer ring is completed, the fixed column is rotated inside the high-pressure gas storage cylinder body, so that the fixed column can drive the top ring to rotate, and the top ring can drive the stabilizing plate to rotate, so that the lower surface of the stabilizing plate will contact the upper surface of the sealing ring, so that the sealing ring can be limited. The overall sealing of this design is better, which reflects the functionality of the design. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic diagram of the structure of the utility model;

[0017] Figure 2It is a schematic diagram of the disassembly of the main body and the outer ring structure of the high-pressure gas storage bottle of the utility model;

[0018] Figure 3 It is a schematic diagram of the disassembly of the fastening ring and the fitting ring structure of the utility model;

[0019] Figure 4 This is a front view schematic diagram of the lower surface of the outer ring structure installed in the utility model.

[0020] In the figure: 1. High-pressure gas cylinder body; 2. Sealing port; 3. Fitting pad; 4. Sealing column; 5. Sealing pad; 6. Fitting ring; 7. Groove; 8. Fastening ring; 9. Mounting outer ring; 10. Mounting thread; 11. Adapter thread; 12. Sealing ring; 13. Fixing column; 14. Top ring; 15. Stabilizing plate. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-4 , an embodiment provided by the utility model:

[0023] A high-pressure gas cylinder sealing structure. The high-pressure gas cylinder body 1, the mounting thread 10 and the adapting thread 11 used in the present application are all products that can be directly purchased on the market. The principles and connection methods thereof are all prior arts well known to those skilled in the art, so they will not be described in detail here. The high-pressure gas cylinder body 1 is installed. The top surface of the high-pressure gas cylinder body 1 is provided with a sealing port 2. The upper surface of the high-pressure gas cylinder body 1 is provided with a fitting pad 3. The interior of the high-pressure gas cylinder body 1 is provided with a fixing column 13. The top surface of the fixing column 13 is fixedly connected with a top ring 14. The back surface of the top ring 14 is fixedly connected with a stabilizing plate 15. When the overall installation of the outer ring 9 is completed, the fixing column 13 is rotated inside the high-pressure gas cylinder body 1, so that the fixing column 13 can drive the top ring 14 to rotate, so that the top ring 14 can drive the stabilizing plate 15 to rotate, so that the lower surface of the stabilizing plate 15 will contact the upper surface of the sealing ring 12, so that the sealing ring 12 can be limited, so that the overall sealing of the present design is better.

[0024] A sealing column 4 is installed inside the sealing port 2. A sealing gasket 5 is provided on the lower surface of the sealing column 4. A fitting ring 6 is provided on the lower surface of the sealing gasket 5. A groove 7 is provided inside the fitting ring 6. A fastening ring 8 is provided inside the groove 7. The groove 7 and the fastening ring 8 are adapted to each other. A mounting outer ring 9 is provided on the outer surface of the sealing column 4. An adapting thread 11 is provided on the inner side wall of the mounting outer ring 9. A mounting thread 10 is provided on the outer surface of the sealing column 4. The sealing column 4 and the mounting outer ring 9 are adapted to each other. A sealing ring 12 is provided on the outer surface of the mounting outer ring 9. The lower surface of the sealing ring 12 contacts with the upper surface of the fitting gasket 3. The sealing column 4 can be integrally installed inside the sealing port 2. At the same time, the sealing column 4 is installed inside the sealing port 2. At this time, the upper surfaces of the sealing gasket 5 and the fitting ring 6 will contact with each other. The sealing ring 5 is installed on the inner wall of the high-pressure gas storage bottle body 1. When the air pressure inside the high-pressure gas storage bottle body 1 is high, the air pressure will squeeze the fitting ring 6, so that the fastening ring 8 will be fitted and installed on the top surface of the inner wall of the high-pressure gas storage bottle body 1. Therefore, the design of the sealing gasket 5, the fitting ring 6 and the sealing column 4 can seal the high-pressure gas storage bottle body 1 in an integrated manner, and the overall sealing effect is good. Then, the outer ring 9 is screwed and installed on the outer surface of the sealing column 4. Through the design between the fitting thread 11 on the inner wall of the outer ring 9 and the installation thread 10, the outer ring 9 can be easily screwed on the outer surface of the fitting pad 3. When the sealing ring 12 contacts the upper surface of the fitting pad 3, the outer ring 9 is stopped from being screwed. Therefore, the design of the outer ring 9 and the sealing ring 12 can limit the position of the sealing column 4, and the overall limiting effect is good.

[0025] Working principle: When the staff uses the device, firstly, the device is connected to an external power supply to provide power support for the device. Firstly, the sealing column 4 can be installed as a whole into the inside of the sealing port 2, and the sealing column 4 is installed inside the sealing port 2. At this time, the upper surfaces of the sealing gasket 5 and the fitting ring 6 will be installed against the inner wall of the high-pressure gas cylinder body 1. When the air pressure inside the high-pressure gas cylinder body 1 is high, the air pressure will squeeze the fitting ring 6, so that the fastening ring 8 will be installed in a fitting manner on the top surface of the inner wall of the high-pressure gas cylinder body 1. Therefore, the design of the sealing gasket 5, the fitting ring 6 and the sealing column 4 can seal the high-pressure gas cylinder body 1 in an integrated manner, and the overall sealing effect is good. Then, the outer ring 9 is installed on the outer surface of the sealing column 4 by screwing. By installing the design between the adapting thread 11 on the inner wall of the outer ring 9 and the installing thread 10, the installing outer ring 9 can be easily screwed on the outer surface of the fitting pad 3. When the sealing ring 12 contacts the upper surface of the fitting pad 3, the screwing of the installing outer ring 9 is stopped. Therefore, the design of installing the outer ring 9 and the sealing ring 12 can limit the position of the sealing column 4. When the overall installation of the installing outer ring 9 is completed, the fixing column 13 is rotated inside the high-pressure gas cylinder body 1, so that the fixing column 13 can drive the top ring 14 to rotate, and the top ring 14 can drive the stabilizing plate 15 to rotate, so that the lower surface of the stabilizing plate 15 will contact the upper surface of the sealing ring 12, so that the sealing ring 12 can be limited. The above is all the working principles of the present invention.

[0026] The above description is only a preferred embodiment of the utility model and does not limit the utility model in any form. Any ordinary technician in the industry can smoothly implement the utility model as shown in the drawings of the specification and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the utility model using the technical content disclosed above are all equivalent embodiments of the utility model. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the utility model are still within the protection scope of the technical solution of the utility model.

Claims

1. A sealing structure for a high-pressure gas storage bottle, mounted on a high-pressure gas storage bottle body (1), characterized in that: The top surface of the high-pressure gas storage bottle body (1) is provided with a sealing opening (2), and the upper surface of the high-pressure gas storage bottle body (1) is provided with a fitting pad (3); A sealing column (4), wherein the sealing column (4) is installed inside the sealing port (2), a sealing gasket (5) is arranged on the lower surface of the sealing column (4), a fitting ring (6) is arranged on the lower surface of the sealing gasket (5), a groove (7) is arranged inside the fitting ring (6), a fastening ring (8) is arranged inside the groove (7), and the groove (7) and the fastening ring (8) are adapted to each other.

2. A high-pressure gas storage bottle sealing structure according to claim 1, characterized in that: The outer surface of the sealing column (4) is provided with a mounting outer ring (9), and the inner side wall of the mounting outer ring (9) is provided with an adapting thread (11).

3. A sealing structure for a high-pressure gas storage cylinder according to claim 1, characterized in that: The outer surface of the sealing column (4) is provided with a mounting thread (10), and the sealing column (4) and the mounting outer ring (9) are adapted to each other.

4. A sealing structure for a high-pressure gas storage cylinder according to claim 2, characterized in that: The outer surface of the mounting outer ring (9) is provided with a sealing ring (12), and the lower surface of the sealing ring (12) is in contact with the upper surface of the fitting pad (3).

5. The sealing structure of a high-pressure gas storage cylinder according to claim 1, characterized in that: A fixing column (13) is arranged inside the high-pressure gas storage cylinder body (1), a top ring (14) is fixedly connected to the top surface of the fixing column (13), and a stabilizing plate (15) is fixedly connected to the back surface of the top ring (14).

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