Hydrogen filling connection tool

Abstract

The utility model provides a kind of hydrogen filling connection tool, belong to pipeline connection field, including hydrogen output pipeline, hydrogen connecting pipeline, connecting assembly and anti-breaking assembly;Hydrogen output pipeline and hydrogen connecting pipeline butt joint connection one end;The utility model: the connecting block of plug-in connector two sides is inserted from the slot in the front end inner wall of connecting sleeve, by rotating plug-in connector so that connecting block spirally enters inside sliding slot, when connecting block slides to the inside of the accommodating cavity enlarged at one end of sliding slot, stop rotating, plug-in connector is fixedly connected with butt joint, since the inside movable installation of butt joint has push ring, plug-in connector is inserted to the inside of butt joint and moves when extruding push ring, push ring extrudes spring and slides back, when plug-in connector stops, spring reaction force is moved outward by push ring, plug-in connector surface connecting block is located in the accommodating cavity in one end of sliding slot at this time, so that butt joint is fixedly connected with plug-in connector, it is convenient to quickly connect and disassemble pipeline.

Description

Technical Field

[0001] This utility model relates to the field of pipeline connection, specifically a hydrogen filling connection tool. Background Technology

[0002] When filling hydrogen, the hydrogen filling station is connected to the mobile container via a hydrogen filling hose. However, due to the flexibility of hydrogen filling hoses, when a hydrogen filling hose breaks, it swings wildly, easily injuring operators and damaging surrounding equipment. A hydrogen filling connection device, as described in application number "CN202122250956.5", is an embodiment of this utility model. The fastening rope is attached to opposite sides of the hydrogen filling hose via first fasteners, and multiple second fasteners are spaced along the outer walls of the hydrogen filling hose and the fastening rope. Thus, when the hydrogen filling hose breaks, the fastening rope restricts the hose's freedom of movement, preventing it from swinging and protecting operators and surrounding equipment. However, this connection device still requires improvement: the lack of a quick-connect structure at both ends of the filling hose makes the connection between the hydrogen output pipe and the hydrogen connection pipe cumbersome, reducing work efficiency. Furthermore, a break between the hydrogen output pipe and the hydrogen connection pipe can lead to hydrogen leakage. Utility Model Content

[0003] The purpose of this invention is to provide a hydrogen filling and connection fixture to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a hydrogen filling and connecting fixture, comprising a hydrogen output pipe, a hydrogen connection pipe, a connecting component, and an anti-breakage component;

[0005] Among them: one end of the hydrogen output pipeline and the hydrogen connection pipeline are connected together;

[0006] The connecting assembly includes a connecting sleeve fixedly connected to one end of a hydrogen output pipeline, a plug connector fixedly connected to one end of the hydrogen connection pipeline, a mating connector installed inside the connecting sleeve, slots on both sides of the inner wall of the front end of the connecting sleeve, a spiral groove on the surface of the connecting sleeve, one end of the groove expanding into a receiving cavity, the groove communicating with the slot, connecting blocks fixedly connected to both sides of the surface of the plug connector, the connecting blocks sliding in the groove and finally stopping in the receiving cavity expanded at one end of the groove, and the plug connector mating with the inside of the mating connector.

[0007] The anti-breakage assembly includes two valve bodies fixedly connected to the middle of the hydrogen output pipeline. The two valve bodies are equipped with retractable valve cores. One end of each valve body is connected to an installation ring. The surface of the installation ring is fitted with a retaining sleeve. Support blocks are installed on both sides of the surface of the two retaining sleeves. A fixing pin is inserted inside the support block. A breakage pin is inserted at one end of the fixing pin.

[0008] As a preferred embodiment of this utility model: a push ring is movably installed inside the connector, and a plurality of springs are fixedly connected to one side of the push ring, with one end of the springs fixedly connected inside the connector.

[0009] As a preferred embodiment of this utility model: a sealing gasket is installed at the front end of the connector, and the sealing gasket is in contact with the surface of the push ring by compression.

[0010] As a preferred embodiment of this utility model: a limiting ring is installed on the surface of the connector, and the limiting ring contacts the front edge of the connecting sleeve.

[0011] As a preferred embodiment of this utility model, the surface of the connecting sleeve is provided with anti-slip texture.

[0012] As a preferred embodiment of this utility model, the hydrogen output pipeline is a stainless steel corrugated pipe.

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

[0014] (1) A connecting sleeve is connected to one end of the hydrogen output pipeline and a plug is connected to one end of the hydrogen connection pipeline. When a connection is required, the connecting blocks on both sides of the plug are inserted into the slots on the inner wall of the front end of the connecting sleeve. The plug is rotated so that the connecting blocks spiral into the groove. When the connecting blocks slide into the cavity that is expanded at one end of the groove, the rotation stops. At this time, the plug and the connector are fixedly connected. Since the connector has a push ring installed inside, when the plug moves into the connector, it squeezes the push ring. The push ring squeezes the spring and slides backward. When the plug stops, the spring reaction force pushes the plug outward through the push ring. At this time, the connecting block on the surface of the plug is located in the cavity at one end of the groove, so that the connector and the plug are fixedly connected, which facilitates quick connection and disassembly of the pipeline.

[0015] (2) Two valve bodies are installed in the middle of the hydrogen output pipeline. The two valve bodies are equipped with retractable valve cores. When the two valve bodies are connected, the two valve cores push each other to move into the valve bodies so that the two valve bodies are in a connected state. An installation ring is installed at one end of the valve body. A retaining sleeve is fitted on the surface of the installation ring. Support blocks are connected to both sides of the two retaining sleeves. A fixing pin is inserted into the support block and a pull-off pin is inserted at one end of the fixing pin to fix the two valve bodies. When the pipeline is filled with hydrogen, the retaining sleeves between the two valve bodies move away from each other after being pulled. The retaining sleeves apply force to the pull-off pin through the fixing pin. When the pulling force is greater than the tensile strength of the pull-off pin, the pull-off pin breaks. After the two retaining sleeves are separated, the valve core inside the valve body automatically closes to avoid hydrogen leakage due to pipeline breakage. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the disassembled structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the connecting component structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the anti-breakage component structure of this utility model.

[0020] In the diagram: 1. Hydrogen output pipeline; 2. Hydrogen connection pipeline; 3. Connection assembly; 31. Connection sleeve; 32. Plug; 33. Butt joint; 34. Slot; 35. Slide groove; 36. Connection block; 37. Push ring; 38. Spring; 4. Anti-pull-out assembly; 41. Valve body; 42. Valve core; 43. Mounting ring; 44. Compression sleeve; 45. Support block; 46. Fixing pin; 47. Pull-out pin; 5. Sealing gasket; 6. Limiting ring; 7. Anti-slip texture. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] Please see Figures 1-4 A hydrogen filling and connecting fixture includes: a hydrogen output pipe 1, a hydrogen connecting pipe 2, a connecting component 3, and an anti-breakage component 4; one end of the hydrogen output pipe 1 and the hydrogen connecting pipe 2 are connected together.

[0023] Please see Figure 1 , Figure 2 , Figure 3 The connecting component 3 includes a connecting sleeve 31 fixedly connected to one end of the hydrogen output pipe 1, a plug 32 fixedly connected to one end of the hydrogen connection pipe 2, a mating joint 33 installed inside the connecting sleeve 31, slots 34 opened on both sides of the inner wall of the front end of the connecting sleeve 31, a spiral groove 35 opened on the surface of the connecting sleeve 31, one end of the groove 35 is expanded into a receiving cavity, the groove 35 communicates with the slot 34, connecting blocks 36 are fixedly connected to both sides of the surface of the plug 32, the connecting blocks 36 slide in the groove 35 and finally stop in the receiving cavity expanded at one end of the groove 35, and the plug 32 is mated inside the mating joint 33.

[0024] In practical use: A connecting sleeve 31 is connected to one end of the hydrogen output pipe 1, and a plug 32 is connected to one end of the hydrogen connection pipe 2. When connection is required, the connecting blocks 36 on both sides of the plug 32 are inserted into the slots 34 on the inner wall of the front end of the connecting sleeve 31. By rotating the plug 32, the connecting blocks 36 spiral into the slide groove 35. When the connecting blocks 36 slide into the receiving cavity expanded at one end of the slide groove 35, the rotation stops. At this time, the plug 32 is fixedly connected to the connector 33. Since the connector 33 has a movable push ring 37 installed inside, when the plug 32 moves into the connector 33, it squeezes the push ring 37. The push ring 37 squeezes the spring 38 and slides backward. When the plug 32 stops, the reaction force of the spring 38 pushes the plug 32 outward through the push ring 37. At this time, the connecting blocks 36 on the surface of the plug 32 are located in the receiving cavity at one end of the slide groove 35, so that the connector 33 and the plug 32 are fixedly connected, which facilitates quick connection and disassembly of the pipes.

[0025] Please see Figure 1 , Figure 4 The anti-breakage component 4 includes two valve bodies 41 fixedly connected to the middle of the hydrogen output pipeline 1. The two valve bodies 41 are equipped with retractable valve cores 42. One end of each valve body 41 is connected to an installation ring 43. The surface of the installation ring 43 is fitted with a retaining sleeve 44. Support blocks 45 are installed on both sides of the surface of the two retaining sleeves 44. A fixing pin 46 is inserted inside the support block 45. A breakage pin 47 is inserted at one end of the fixing pin 46.

[0026] In practical use: Two valve bodies 41 are installed in the middle of the hydrogen output pipeline 1. The two valve bodies 41 are equipped with retractable valve cores 42. When the two valve bodies 41 are connected, the two valve cores 42 push each other to move into the valve bodies 41, so that the two valve bodies 41 are in a connected state. An installation ring 43 is installed at one end of the valve body 41. A retaining sleeve 44 is fitted on the surface of the installation ring 43. Support blocks 45 are connected to both sides of the two retaining sleeves 44. A fixing pin 46 is inserted into the support block 45, and a pull-off pin 47 is inserted at one end of the fixing pin 46 to fix the two valve bodies 41. When the pipeline is filled with hydrogen, the retaining sleeves 44 between the two valve bodies 41 move away from each other. The retaining sleeves 44 apply force to the pull-off pin 47 through the fixing pin 46. When the tensile force is greater than the tensile strength of the pull-off pin 47, the pull-off pin 47 breaks. After the two retaining sleeves 44 are separated, the valve core 42 inside the valve body 41 automatically closes to prevent hydrogen leakage due to pipeline breakage.

[0027] Please see Figure 3 A sealing washer 5 is installed at the front end of the connector 32, and the sealing washer 5 is in contact with the surface of the push ring 37 by compression.

[0028] In practical use: a sealing gasket 5 is installed at the front end of the plug 32. When the plug 32 is inserted into the connector 33, it contacts the push ring 37. The sealing gasket 5 ensures good sealing between the contact surfaces of the plug 32 and the push ring 37, preventing hydrogen leakage.

[0029] Please see Figure 3 A limiting ring 6 is installed on the surface of the connector 32, and the limiting ring 6 contacts the front edge of the connecting sleeve 31.

[0030] In practical use: a limiting ring 6 is installed on the surface of the plug 32. When the plug 32 is plugged into the connector 33, the limiting ring 6 contacts the front end of the connecting sleeve 31 to limit the movement.

[0031] Please see Figure 2 The surface of the connecting sleeve 31 is provided with anti-slip texture 7.

[0032] In practical use: the anti-slip texture 7 on the surface of the connecting sleeve 31 increases the friction with the hand, making it easier to grip the pipe when connecting it.

[0033] Please see Figure 1 Hydrogen output pipe 1 is a stainless steel corrugated pipe.

[0034] In practical use: the hydrogen output pipeline 1 is made of stainless steel corrugated pipe, which makes it more resistant to corrosion in the hydrogen environment than ordinary carbon steel, reducing the risk of hydrogen embrittlement. At the same time, the corrugated pipe structure provides flexibility to adapt to vehicle vibration, and the metal braided protective layer enhances pressure resistance.

[0035] When connection is required, the connecting blocks 36 on both sides of the plug 32 are inserted into the slots 34 on the inner wall of the front end of the connecting sleeve 31. By rotating the plug 32, the connecting blocks 36 spiral into the slide groove 35. When the connecting blocks 36 slide into the receiving cavity that expands at one end of the slide groove 35, the rotation stops. At this time, the plug 32 and the mating connector 33 are fixedly connected. Since the mating connector 33 has a movable push ring 37 installed inside, when the plug 32 moves into the mating connector 33, it squeezes the push ring 37. The push ring 37 squeezes the spring 38 and slides backward. When the plug 32 stops, the reaction force of the spring 38 pushes the plug 32 outward through the push ring 37. At this time, the connecting blocks 36 on the surface of the plug 32 are located in the receiving cavity at one end of the slide groove 35, so that the mating connector 33 and the plug 32 are fixedly connected, which facilitates quick connection and disassembly of the pipeline.

[0036] The contents not described in detail in this description are existing technologies known to those skilled in the art. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A hydrogen filling and connecting fixture, characterized in that, include: A hydrogen output pipe (1) and a hydrogen connection pipe (2) are connected at one end; The connecting component (3) includes a connecting sleeve (31) fixedly connected to one end of the hydrogen output pipe (1), a plug (32) fixedly connected to one end of the hydrogen connection pipe (2), a mating joint (33) installed inside the connecting sleeve (31), slots (34) are provided on both sides of the inner wall of the front section of the connecting sleeve (31), a spiral groove (35) is provided on the surface of the connecting sleeve (31), one end of the groove (35) is expanded into a receiving cavity, the groove (35) communicates with the slot (34), a connecting block (36) is fixedly connected to both sides of the surface of the plug (32), the connecting block (36) slides in the groove (35) and finally stops in the receiving cavity expanded at one end of the groove (35), and the plug (32) is mated inside the mating joint (33). The anti-pull-out assembly (4) includes two valve bodies (41) fixedly connected to the middle of the hydrogen output pipeline (1). The two valve bodies (41) are equipped with retractable valve cores (42). One end of each of the two valve bodies (41) is connected to an installation ring (43). The surface of the installation ring (43) is fitted with a retainer (44). Support blocks (45) are installed on both sides of the surface of the two retainers (44). A fixing pin (46) is inserted inside the support block (45). A pull-out pin (47) is inserted at one end of the fixing pin (46).

2. The hydrogen filling and connecting fixture according to claim 1, characterized in that: A push ring (37) is movably installed inside the connector (33). A plurality of springs (38) are fixedly connected to one side of the push ring (37), and one end of the springs (38) is fixedly connected inside the connector (33).

3. The hydrogen filling and connecting fixture according to claim 1, characterized in that: A sealing washer (5) is installed at the front end of the connector (32), and the sealing washer (5) is in contact with the surface of the push ring (37).

4. The hydrogen filling and connecting fixture according to claim 1, characterized in that: A limiting ring (6) is installed on the surface of the connector (32), and the limiting ring (6) contacts the front edge of the connecting sleeve (31).

5. The hydrogen filling and connecting fixture according to claim 1, characterized in that: The surface of the connecting sleeve (31) is provided with anti-slip texture (7).

6. The hydrogen filling and connecting fixture according to claim 1, characterized in that: The hydrogen output pipeline (1) is a stainless steel corrugated pipe.

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