High-sealing hydrogen conveying hose

Abstract

The utility model belongs to the technical field of hydrogen conveying hoses and discloses a high-sealing hydrogen conveying hose which comprises a first hose, a connecting piece is arranged between the first hose and a second hose, the two ends of the first hose, the two ends of the second hose and the two ends of the connecting piece are each provided with an extending part and a groove, and a first sealing gasket is fixedly installed at the tail end of each extending part. A sealing sleeve is arranged at the tail end of the first sealing gasket, a second sealing gasket is fixedly installed on the inner wall of one end in the groove, and the sealing sleeve on the connecting piece extends into the second hose and is in close contact with the inner wall of the second hose. The sealing sleeve can be tightly attached to the inner wall of the connecting piece or the inner wall of the second hose, so that the sealing performance is improved, the sealing effect of the sealing sleeve can be improved through high pressure when the internal pressure of the pipeline is increased, and the purpose of efficient sealing is achieved in cooperation with the first sealing gasket 7 and the second sealing gasket.

Description

Technical Field

[0001] This utility model belongs to the technical field of hydrogen transportation hoses, and specifically relates to a high-sealing hydrogen transportation hose. Background Technology

[0002] Hydrogen delivery hoses are specialized flexible pipes for outputting hydrogen. They have the advantages of pressure resistance and easy bending, and can be placed in any position when transporting hydrogen, thus improving performance.

[0003] Currently, existing hydrogen delivery hoses typically use only a single-layer sealing gasket for connection. The gasket deforms under pressure during connection to achieve a seal. However, when the internal pressure of the pipeline is too high, the gasket is susceptible to pressure damage after prolonged use, leading to leaks and affecting the safe delivery of hydrogen. Furthermore, most hydrogen delivery hoses require external tools for connection, reducing operational convenience. Therefore, we propose a high-sealing hydrogen delivery hose. Utility Model Content

[0004] The purpose of this invention is to provide a high-sealing hydrogen delivery hose to solve the existing problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-sealing hydrogen transport hose, comprising a first hose, a second hose, and a connector. A connector is provided between the first hose and the second hose. Both ends of the first hose, the second hose, and the connector are provided with extensions and grooves. A first sealing gasket is fixedly installed at the end of the extension. A sealing sleeve is provided at the end of the first sealing gasket. A second sealing gasket is fixedly installed on the inner wall of one end of the groove. The sealing sleeve on the first hose extends into the interior of the connector and is in close contact with its inner wall. The sealing sleeve on the connector extends into the interior of the second hose and is in close contact with its inner wall.

[0006] Preferably, flanges are provided at both ends of the first hose, the second hose, and the connector. A groove is formed around one side of the flanges at both ends of the first and second hoses. A threaded groove is formed on the inner wall of one side of the groove. U-shaped plates are movably connected to the flanges at both ends of the connector via pins. A spring sleeve is fixedly embedded at one end of the U-shaped plate. A movable sleeve is movably arranged inside the spring sleeve. A connecting rod is movably arranged inside the movable sleeve. A knob is fixedly installed at one end of the connecting rod, and a bolt is fixedly welded to the other end of the connecting rod.

[0007] Preferably, a retaining plate is fixedly connected to the bottom of the movable sleeve, and a stepped through groove is provided in the middle of the retaining plate. The stepped through groove communicates with the interior of the movable sleeve. A baffle is fixedly installed at the top of the bolt. The baffle is placed inside the stepped through groove and is movably connected to its inner wall.

[0008] Preferably, the inner walls on both sides of the spring sleeve are provided with limiting grooves, which are formed on the inner wall surfaces of opposite sides of the spring sleeve.

[0009] Preferably, limiting blocks are fixedly installed on both sides of the outer bottom end of the movable sleeve, and the limiting blocks extend into the interior of the limiting groove and are slidably connected to its inner wall.

[0010] Preferably, a compression spring is provided inside the limiting groove, and the two ends of the compression spring are fixedly connected to the top wall of the limiting groove and the limiting block, respectively.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. By setting a sealing sleeve at one end of the first hose, the second hose, and the connector, the pressure inside the pipeline is used to squeeze the sealing sleeve, so that the sealing sleeve can fit tightly against the inner wall of the connector or the inner wall of the second hose, thereby improving its sealing performance. When the pressure inside the pipeline increases, the high pressure can be used to improve the sealing effect of the sealing sleeve. Combined with the first sealing gasket 7 and the second sealing gasket, the purpose of high-efficiency sealing is achieved.

[0013] 2. By using U-shaped plates, spring sleeves, movable sleeves, clamping plates, connecting plates, and bolts, the connection and installation between the first hose and the connector or between the connector and the second hose can be achieved. This not only ensures stable installation but also improves the ease of disassembly and assembly, allowing workers to disassemble and replace the hose by hand when necessary. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a multi-angle structural schematic diagram of the present invention;

[0016] Figure 3 This is a schematic diagram of the connecting bolt structure of this utility model.

[0017] In the diagram: 1. First hose; 2. Second hose; 3. Flange; 4. Slot; 5. Threaded groove; 6. Extension; 7. First sealing gasket; 8. Sealing sleeve; 9. Connector; 10. U-shaped plate; 11. Spring sleeve; 12. Limiting groove; 13. Compression spring; 14. Movable sleeve; 15. Limiting block; 16. Clamping plate; 17. Stepped through groove; 18. Connecting rod; 19. Bolt; 20. Knob; 21. Baffle; 22. Groove; 23. Second sealing gasket. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-3 This utility model provides a high-sealing hydrogen transport hose technical solution: including a first hose 1, a second hose 2, and a connector 9. The connector 9 is provided between the first hose 1 and the second hose 2. Both ends of the first hose 1, the second hose 2, and the connector 9 are provided with an extension 6 and a groove 22. A first sealing gasket 7 is fixedly installed at the end of the extension 6. A sealing sleeve 8 is provided at the end of the first sealing gasket 7. A second sealing gasket 23 is fixedly installed on the inner wall of one end of the groove 22. The sealing sleeve 8 on the first hose 1 extends into the interior of the connector 9 and is in close contact with its inner wall. The sealing sleeve 8 on the connector 9 extends into the interior of the second hose 2 and is in close contact with its inner wall.

[0020] Specifically, flanges 3 are provided at both ends of the first hose 1, the second hose 2, and the connector 9. Grooves 4 are provided around one side of the flanges 3 at both ends of the first hose 1 and the second hose 2. Threaded grooves 5 are provided on the inner wall of one side of the grooves 4. U-shaped plates 10 are movably connected around the flanges 3 at both ends of the connector 9 by pins. A spring sleeve 11 is fixedly embedded at one end of the U-shaped plate 10. A movable sleeve 14 is movably provided inside the spring sleeve 11. A connecting rod 18 is movably provided inside the movable sleeve 14. A knob 20 is fixedly installed at one end of the connecting rod 18. A bolt 19 is fixedly welded to the other end of the connecting rod 18.

[0021] Specifically, a retaining plate 16 is fixedly connected to the bottom of the movable sleeve 14. A stepped through groove 17 is provided in the middle of the retaining plate 16. The stepped through groove 17 communicates with the interior of the movable sleeve 14. A baffle 21 is fixedly installed at the top of the bolt 19. The baffle 21 is placed inside the stepped through groove 17 and is movably connected to its inner wall.

[0022] Specifically, the inner walls on both sides of the spring sleeve 11 are provided with limiting grooves 12, which are provided on the inner wall surfaces of opposite sides of the spring sleeve 11.

[0023] Specifically, limit blocks 15 are fixedly installed on both sides of the outer bottom end of the movable sleeve 14. The limit blocks 15 extend into the interior of the limit groove 12 and slide in connection with its inner wall.

[0024] Specifically, a compression spring 13 is provided inside the limiting groove 12, and the two ends of the compression spring 13 are fixedly connected to the top wall of the limiting groove 12 and the limiting block 15, respectively.

[0025] In this embodiment, during connection, the end of the first hose 1 with the extension 6 is inserted into the groove 22 of the connector 9, and the sealing sleeve 8 is inserted into the interior of the connector 9. Then, the end of the connector 9 with the extension 6 is inserted into the groove 22 of the second hose 2, so that the sealing sleeve 8 on the connector 9 is inserted into the interior of the second hose 2. Then, the U-shaped plates 10 at both ends of the connector 9 are flipped over, so that the clamping plate 16 is flipped into the interior of the clamping groove 4. Under the action of the compression spring 13, the clamping plate 16 is pushed to move deeper into the interior of the clamping groove 4, and the bolt 19 is inserted into the threaded groove 5. Finally, by rotating the knob 20, in conjunction with the connecting rod 18, the bolt 19 is rotated and screwed into the interior of the threaded groove 5, thereby completing the installation operation. When disassembly is required, the knob 20 is rotated in the opposite direction. 0. Rotate the connecting rod 18 and bolt 19 to unscrew them from the threaded groove 5. Then pull the knob 20 back to retract the connecting rod 18 and bolt 19. Using the baffle 21 and the stepped through groove 17, the clamping plate 16 and movable sleeve 14 slide and retract, thus realizing the disassembly work. This design allows the sealing sleeve 8 to be squeezed by the pressure inside the pipeline during use, so that the sealing sleeve 8 can fit tightly against the inner wall of the connector 9 or the inner wall of the second hose 2, thereby improving its sealing performance. When the pressure inside the pipeline increases, the high pressure can be used to improve the sealing effect of the sealing sleeve 8. Combined with the first sealing gasket 7 and the second sealing gasket 23, the purpose of efficient sealing is achieved. It also makes it easy for workers to disassemble and assemble by hand, improving the convenience of disassembly and assembly.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-sealing hydrogen delivery hose comprising a first hose (1), a second hose (2) and a connecting piece (9), characterized in that: The first hose (1) and the second hose (2) are provided with a connecting piece (9), and the two ends of the first hose (1), the second hose (2) and the connecting piece (9) are provided with an extension (6) and a groove (22), the end of the extension (6) is fixedly installed with a first sealing pad (7), the end of the first sealing pad (7) is provided with a sealing sleeve (8), the inner wall of one end of the groove (22) is fixedly installed with a second sealing pad (23), the sealing sleeve (8) on the first hose (1) extends to the inside of the connecting piece (9) and tightly contacts with the inner wall thereof, and the sealing sleeve (8) on the connecting piece (9) extends to the inside of the second hose (2) and tightly contacts with the inner wall thereof.

2. A high containment hydrogen delivery hose according to claim 1, wherein: The two ends of the first hose (1), the second hose (2) and the connecting piece (9) are provided with flanges (3), the four sides of one side of the flanges (3) at the two ends of the first hose (1) and the second hose (2) are provided with clamping grooves (4), the inner wall of one side of the clamping grooves (4) is provided with a threaded groove (5), the four sides of the flanges (3) at the two ends of the connecting piece (9) are movably connected with U-shaped plates (10) through pin shafts, one end of the U-shaped plate (10) is fixedly embedded with a spring sleeve (11), the inside of the spring sleeve (11) is movably provided with a movable sleeve (14), the inside of the movable sleeve (14) is movably provided with a connecting rod (18), one end of the connecting rod (18) is fixedly installed with a knob (20), the other end of the connecting rod (18) is fixedly welded with a bolt (19).

3. A high containment hydrogen delivery hose according to claim 2, wherein: The bottom of the movable sleeve (14) is fixedly connected with a clamping plate (16), the middle of the clamping plate (16) is provided with a stepped through groove (17), the stepped through groove (17) is communicated with the inside of the movable sleeve (14), the top end of the bolt (19) is fixedly installed with a baffle (21), and the baffle (21) is arranged in the inside of the stepped through groove (17) and movably connected with the inner wall thereof.

4. A high containment hydrogen delivery hose according to claim 2, wherein: The inside of the spring sleeve (11) is provided with a limiting groove (12) on the inner wall surfaces of the opposite sides.

5. A high containment hydrogen delivery hose according to claim 2, wherein: The outside of the movable sleeve (14) is fixedly installed with a limiting block (15) at the bottom of both sides, and the limiting block (15) extends to the inside of the limiting groove (12) and is slidably connected with the inner wall thereof.

6. A high containment hydrogen delivery hose according to claim 4, wherein: The inside of the limiting groove (12) is provided with a compression spring (13), and the two ends of the compression spring (13) are fixedly connected with the top wall of the limiting groove (12) and the limiting block (15) respectively.

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