Quick plugging hydrogen valve

Abstract

The invention relates to the technical field of hydrogen valves, and discloses a quick plugging hydrogen valve which comprises a valve body and two quick connectors, an air pressure detection assembly is installed on the valve body and used for detecting the air pressure change condition in the valve body when the valve body is opened and closed, and the two quick connectors are installed at the two ends of the valve body respectively. And the valve is quickly connected with a hydrogen pipeline through quick connectors at two ends. The valve is connected with the hydrogen pipeline through the quick connector, hydrogen is subjected to pressure relief twice when flowing into the valve through the quick connector, the gas flow rate and pressure after pressure relief are both effectively reduced, the pipeline and the valve are protected, the quick connector adopts modular design, connection is more convenient, plugging blocks are arranged at the butt joint ends of the male connector and the female connector, and the plugging blocks are not prone to deformation. The plugging block is flush with the end face of the connector, external pollution is not prone to entering the connector, the sealing design between the plugging block and the connector can prevent high-pressure airflow from being flushed out when a valve or a pipeline is connected with residual pressure, and hydrogen leakage is effectively prevented.

Description

Technical Field

[0001] This invention relates to the field of hydrogen valve technology, specifically a quick-plug hydrogen valve. Background Technology

[0002] Valves are mechanical devices that control the flow rate, direction, pressure, and temperature of flowing fluid media. They are fundamental components of piping systems. Technically, valves, like pumps, are often discussed as a separate category. Valves can be operated manually with handwheels, handles, or pedals, and their control can alter the pressure, temperature, and flow rate of the fluid medium. In high-pressure hydrogen transportation and application systems, valves play a crucial role, controlling the flow and cutoff of hydrogen.

[0003] In existing technologies, hydrogen valves are typically connected to pipelines directly via flanges. This connection method has the following problems:

[0004] Due to the lack of a sealing structure, when valves and pipes need to be disassembled, if there is residual hydrogen in the valves or pipes, the hydrogen will leak out during disassembly. Furthermore, due to the lack of a pipe sealing structure, high-pressure hydrogen in the pipes will flow through the pipes instantly during reconnection. Since the high-pressure hydrogen has not been effectively depressurized, it will impact the pipes and valves, causing vibration and damaging the pipes and valves. Summary of the Invention

[0005] The purpose of this invention is to provide a quick-plug hydrogen valve to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A quick-plug hydrogen valve, including

[0008] A valve, on which a pressure detection component is installed, the pressure detection component being used to detect changes in the internal pressure of the valve when it is opened and closed;

[0009] The quick-connector is provided in two parts, which are respectively installed at both ends of the valve. The valve is quickly connected to the hydrogen pipeline through the quick-connectors at both ends. The quick-connector is provided with a pressure relief mechanism, which includes a first pressure relief mechanism and a second pressure relief mechanism. The first pressure relief mechanism and the second pressure relief mechanism cooperate with each other to relieve the pressure of the high-pressure hydrogen in the pipeline twice.

[0010] As a further aspect of the present invention: the quick connector includes a male connector, a female connector, and a threaded sleeve. The threaded sleeve is slidably fitted onto one end of the male connector. The surface of the female connector is provided with an external thread. The external thread of the female connector and the internal thread of the threaded sleeve cooperate with each other to lock the male connector and the female connector together after they are mated.

[0011] As a further embodiment of the present invention: the air pressure detection component includes an air cylinder, the air cylinder is fixed to one side of the valve and communicates with the interior of the valve, a piston is slidably connected inside the air cylinder, a push rod is fixed to one side of the piston, one end of the push rod slides through to the outside of the air cylinder, and the surface of the push rod is provided with a scale, a return spring is sleeved on the push rod, and the two ends of the return spring are respectively connected and fixed to the push rod and the inner wall of the air cylinder.

[0012] As a further embodiment of the present invention: the male connector includes a first housing, the first housing being a cylindrical structure open at both ends, with a slide cylinder slidably connected inside one of its open ends, a first spring being provided inside the first housing corresponding to one side of the slide cylinder, the two ends of the first spring being fixedly connected to the slide cylinder and the inner wall of the first housing respectively, the inner end of the slide cylinder being open and its outer end being closed, the outer end surface of the slide cylinder having an inwardly recessed insertion groove, the center of the insertion groove having a vent that extends through both ends, and the inner wall of the slide cylinder having an annular step integrally formed around the periphery of the vent.

[0013] As a further embodiment of the present invention: a first connecting rod is fixed inside the first housing by a first bracket, a first sealing block is fixed at one end of the first connecting rod, the shape and size of the first sealing block are adapted to the vent, the first sealing block is disposed inside the vent, the front end face of the first sealing block is flush with the surface of the vent and the rear end face of the first sealing block abuts against the annular step, and a sealing ring is provided between the first sealing block and the annular step.

[0014] As a further embodiment of the present invention: the female connector includes a second housing, which is a cylindrical structure with openings at both ends, and its size and shape are adapted to the male connector. An isolation ring is fixed inside the second housing, and a hole is opened at the center of the isolation ring for ventilation. A guide cylinder is slidably connected to one side of the second housing corresponding to the isolation ring through a guide bracket. A sealing disc is fixed to one end of the guide cylinder. The sealing disc is fitted to one side of the isolation ring to cover the hole on the isolation ring. A sealing ring is provided between the sealing disc and the isolation ring. A second spring is sleeved on the outside of the guide cylinder, and the two ends of the second spring are respectively connected and fixed to the guide cylinder and the inner wall of the second housing.

[0015] As a further embodiment of the present invention: a second connecting rod is slidably inserted into the inside of the guide cylinder, both ends of the second connecting rod extending to the outside of the guide cylinder. A second sealing block is fixed to one end of the second connecting rod, the second sealing block being used to block the opening at one end of the second housing, and one end face of the second sealing block being flush with the opening at one end of the second housing. The end of the second connecting rod away from the second sealing block slides through to one side of the sealing disc. A sealing gasket is sleeved and fixed to one end of the second connecting rod, the sealing gasket being fitted against one side of the sealing disc. A third spring is sleeved on the end of the second connecting rod corresponding to the sealing gasket, the two ends of the third spring being respectively connected and fixed to the second connecting rod and the inner wall of the second housing. The second connecting rod, the sealing gasket, and the third spring cooperate with each other to form a first pressure relief mechanism, used to perform the first pressure relief of the high-pressure hydrogen gas inside when the pipeline is connected.

[0016] As a further embodiment of the present invention: a plurality of vent holes are provided around the surface of the sealing disc on one side corresponding to the second connecting rod. The diameter of the vent holes is smaller than the diameter of the holes on the isolation ring. The sealing gasket is used to block the vent holes. The guide cylinder, the second spring and the sealing disc cooperate with each other to form a second pressure relief mechanism, which is used to perform a second pressure relief on the high-pressure hydrogen gas inside when the pipeline is connected.

[0017] As a further embodiment of the present invention: one end of the valve is an air inlet and the other end is an air outlet, the air inlet and the air outlet are staggered vertically, and a connecting port is provided at the connection position in the middle. A handwheel is connected to the top of the valve via a bracket, a screw is fixed on the handwheel, a threaded sleeve is threaded on the screw, the threaded sleeve is slidably connected to the valve, and a plug is fixed at the bottom end of the threaded sleeve. The plug is located inside the valve and is adapted to the connecting port.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] In this invention, quick connectors are provided at both ends of the valve to connect to hydrogen pipelines. When hydrogen flows into the valve through the quick connectors, it is depressurized twice. After depressurization, the gas flow rate and pressure are effectively reduced, thereby effectively buffering the impact of high-pressure hydrogen on the pipeline and valve, reducing pipeline and valve vibration, and protecting the pipeline and valve.

[0020] Furthermore, the quick coupling adopts a modular design, making connection more convenient. Both the male and female couplings are equipped with sealing blocks at their mating ends. The sealing blocks are flush with the end face of the coupling, making it difficult for external contaminants to enter the coupling. This also facilitates cleaning of the coupling ports. The sealing design between the sealing blocks and the coupling can prevent high-pressure gas flow from being forced out when the valve or pipeline is connected with residual pressure, effectively preventing hydrogen leakage.

[0021] Furthermore, installing a pressure detection component on the valve can detect changes in internal pressure when the valve is opened and closed. Operators can then determine the safety of the valve based on these pressure changes, and replace it promptly if the pressure value is abnormal, making it safer to use. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of the present invention.

[0024] Figure 2 This is a schematic diagram of the internal structure of the valve in this invention.

[0025] Figure 3 This is a side view of the valve in this invention.

[0026] Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0027] Figure 5 This is a structural unfolded diagram of the quick connector in this invention.

[0028] Figure 6 This is a diagram showing the internal structure of the male connector in a quick coupling.

[0029] Figure 7 for Figure 6 Enlarged view of point B in the middle.

[0030] Figure 8 This is a diagram showing the internal structure of the female connector in a quick coupling.

[0031] Figure 9 for Figure 8 Enlarged view of point C in the middle.

[0032] Figure label annotations:

[0033] 100-Valve, 110-Inlet, 120-Outlet, 130-Connecting port, 140-Handwheel, 150-Screw, 160-Screw sleeve, 170-Plug, 180-Air pressure detection component, 181-Air cylinder, 182-Piston, 183-Push rod, 184-Reset spring;

[0034] 200-Quick connector, 210-Male connector, 211-First housing, 212-First spring, 213-Slide cylinder, 214-First sealing block, 215-First connecting rod, 216-First bracket, 217-Plug groove, 218-Vent, 219-Annular step;

[0035] 220-Female connector, 221-Second housing, 222-Isolation ring, 223-Sealing disc, 224-Guide cylinder, 225-Guide bracket, 226-Second spring, 227-Second sealing block, 228-Second connecting rod, 229-Second bracket, 2210-Sealing gasket, 2211-Third spring, 230-Threaded cylinder. Detailed Implementation

[0036] The following embodiments will describe the present invention in detail with reference to the accompanying drawings. In the drawings or description, similar or identical parts are referred to by the same reference numerals, and in practical applications, the shape, thickness, or height of each component may be enlarged or reduced. The embodiments listed in this invention are merely illustrative and not intended to limit the scope of the invention. Any obvious modifications or changes made to this invention do not depart from the spirit and scope of the invention.

[0037] Please see Figure 1 and Figure 2 In this embodiment of the invention, a quick-connect hydrogen valve includes a valve 100 and quick connectors 200 disposed at both ends of the valve 100. A hydrogen pipeline is connected to the valve 100 through the quick connectors 200. The quick connectors 200 are detachably connected to the valve 100 through a flange. One end of the valve 100 is an inlet end 110, and the other end is an outlet end 120. The inlet end 110 and the outlet end 120 are arranged alternately. A connecting port 130 is opened at the connection position in the middle. Hydrogen flows in from the inlet end 110, passes through the connecting port 130, and flows to the outlet end 120.

[0038] A handwheel 140 is connected to the top of the valve 100 via a bracket. A screw 150 is fixed to the handwheel 140, and a threaded sleeve 160 is threaded onto the screw 150. The threaded sleeve 160 is slidably connected to the valve 100. A plug 170 is fixed to the bottom end of the threaded sleeve 160. The plug 170 is located inside the valve 100 and is adapted to the connecting port 130. When the handwheel 140 is turned, the screw 150 will drive the threaded sleeve 160 to slide downwards, and the plug 170 at the bottom end of the threaded sleeve 160 will be inserted into the connecting port 130, blocking the connecting port 130. At this time, the valve 100 is in the closed state. A pressure detection component 180 is installed above the valve 100 on the side corresponding to the connecting port 130. The pressure detection component 180 is used to detect the change in internal pressure of the valve 100 when it is opened and closed.

[0039] Please see Figure 3 and Figure 4 The air pressure detection assembly 180 includes an air cylinder 181, which is fixed to one side of the valve 100 and communicates with the interior of the valve 100. A piston 182 is slidably connected inside the air cylinder 181, and a push rod 183 is fixed to one side of the piston 182. One end of the push rod 183 slides through to the outside of the air cylinder 181, and the surface of the push rod 183 is provided with a scale. A return spring 184 is sleeved on the push rod 183, and the two ends of the return spring 184 are respectively connected and fixed to the push rod 183 and the inner wall of the air cylinder 181.

[0040] According to the principles of fluid mechanics, the internal air pressure of valve 100 changes during the opening and closing process. As plug 170 gradually approaches the connecting port 130, the gas velocity on its lower side increases accordingly as the flowable area decreases. At this time, a corresponding high pressure is generated in the upper region of plug 170 inside valve 100. The air pressure detection component 180 is set in this high pressure region. As the air pressure increases, piston 182 in air cylinder 181 is pushed outward and drives push rod 183 to extend outward. Push rod 183 is equipped with a corresponding air pressure scale. By reading the scale value at this time, the change in air pressure inside valve 100 can be understood. Valve 100 has a corresponding air pressure tolerance standard during production. Operators confirm the safety of valve 100 by checking the data. When the air pressure value is abnormal, it needs to be replaced in time.

[0041] Please see Figure 5 The quick connector 200 includes a male connector 210, a female connector 220, and a threaded sleeve 230. The threaded sleeve 230 is slidably sleeved on one end of the male connector 210. The surface of the female connector 220 is provided with external threads. The external threads of the female connector 220 and the internal threads of the threaded sleeve 230 are mutually engaged. After the female connector 220 and the male connector 210 are mated, the threaded sleeve 230 is slid to the side of the female connector 220, and then the threaded sleeve 230 is rotated to drive the female connector 220 to be inserted into the male connector 210 and locked.

[0042] Please see Figure 6 and Figure 7 The male connector 210 includes a first housing 211, which is a cylindrical structure with openings at both ends. A slide cylinder 213 is slidably connected inside one of the openings. A first spring 212 is provided inside the first housing 211 on one side corresponding to the slide cylinder 213. The two ends of the first spring 212 are fixedly connected to the slide cylinder 213 and the inner wall of the first housing 211, respectively. The inner end of the slide cylinder 213 is open and its outer end is closed. An inwardly recessed insertion groove 217 is provided on the outer end surface of the slide cylinder 213. A vent 218 with both ends penetrating is provided at the center of the insertion groove 217. An annular step 219 is integrally formed on the inner wall of the slide cylinder 213 corresponding to the periphery of the vent 218.

[0043] The first connecting rod 215 is fixed inside the first housing 211 by the first bracket 216. A first sealing block 214 is fixed at one end of the first connecting rod 215. The shape and size of the first sealing block 214 are adapted to the vent 218. The first sealing block 214 is set inside the vent 218. The front end face of the first sealing block 214 is flush with the surface of the vent 218 and the rear end face of the first sealing block 214 abuts against the annular step 219. A sealing ring is provided between the first sealing block 214 and the annular step 219.

[0044] When not connected, the first sealing block 214 will block the vent 218, preventing external pollutants from entering the first housing 211. When connected, the slide cylinder 213 slides into the first housing 211, the first sealing block 214 remains stationary, and the vent 218 moves backward relative to the first sealing block 214. At this time, the vent 218 will be exposed, and the gas in the pipeline can enter the first housing 211.

[0045] Please see Figure 8 and Figure 9 The female connector 220 includes a second housing 221, which is a cylindrical structure with openings at both ends. Its size and shape are adapted to the male connector 210. An isolation ring 222 is fixed inside the second housing 221. A hole is opened at the center of the isolation ring 222 for ventilation. A guide cylinder 224 is slidably connected to one side of the second housing 221 corresponding to the isolation ring 222 through a guide bracket 225. A sealing disc 223 is fixed at one end of the guide cylinder 224. The sealing disc 223 is fitted to one side of the isolation ring 222 to cover the hole on the isolation ring 222. A sealing ring is provided between the sealing disc 223 and the isolation ring 222 to prevent air leakage.

[0046] A second spring 226 is sleeved on the outside of the guide cylinder 224. The two ends of the second spring 226 are respectively connected and fixed to the guide cylinder 224 and the inner wall of the second housing 221. When the guide cylinder 224 slides to one side, the second spring 226 will be compressed.

[0047] A second connecting rod 228 is slidably inserted into the inside of the guide cylinder 224. Both ends of the second connecting rod 228 extend to the outside of the guide cylinder 224. A second sealing block 227 is fixed to one end of the second connecting rod 228. The second sealing block 227 is used to block the opening at one end of the second housing 221, and one end face of the second sealing block 227 is flush with the opening at one end of the second housing 221. The end of the second connecting rod 228 away from the second sealing block 227 slides through to one side of the sealing disc 223. A second bracket 229 is slidably connected to the end of the second connecting rod 228. The second bracket 229 is fixed in the second housing 221. A sealing gasket 2210 is sleeved and fixed to one end of the second connecting rod 228. The sealing gasket 2210 is fitted and disposed on one side of the sealing disc 223.

[0048] A third spring 2211 is sleeved on one end of the second connecting rod 228 corresponding to the sealing gasket 2210. The two ends of the third spring 2211 are respectively connected and fixed to the second connecting rod 228 and the inner wall of the second housing 221. When the second connecting rod 228 slides to one side, the third spring 2211 will be compressed. The second connecting rod 228, the sealing gasket 2210 and the third spring 2211 cooperate with each other to form a first pressure relief mechanism, which is used to relieve the pressure of the high-pressure hydrogen inside the pipeline for the first time when the pipeline is connected.

[0049] Multiple vent holes are provided around the surface of the sealing disc 223 on one side corresponding to the second connecting rod 228. The diameter of the vent holes is much smaller than the diameter of the holes on the isolation ring 222. The sealing gasket 2210 is used to block the vent holes. When the sealing gasket 2210 is removed, the hydrogen gas on one side of the second housing 221 will flow from the vent holes to the other side. The guide cylinder 224, the second spring 226 and the sealing disc 223 cooperate with each other to form a second pressure relief mechanism, which is used to relieve the pressure of the high-pressure hydrogen gas inside the pipeline for the second time when the pipeline is connected.

[0050] Working principle:

[0051] The male connector 210 is connected to the valve 100 via a flange, and the connection is sealed with a sealing ring. The hydrogen pipeline is connected via the internal thread at one end of the female connector 220, and the connection is also sealed with a sealing ring. Both the male connector 210 and the female connector 220 are equipped with sealing blocks to prevent residual hydrogen in the pipeline and valve 100 from leaking out.

[0052] After pre-assembly, the male connector 210 is connected to the female connector 220. One end of the female connector 220 is first inserted into the insertion groove 217 at one end of the male connector 210. Then, the threaded cylinder 230 is slid to one side of the female connector 220. Subsequently, the threaded cylinder 230 is rotated, and the external thread on one end of the female connector 220 engages with the internal thread of the threaded cylinder 230, causing the female connector 220 to be inserted into the male connector 210.

[0053] As the female connector 220 is gradually inserted into the male connector 210, the slide 213 moves inward, exposing the vent 218. The airflow channel on one side of the male connector 210 is opened. At the same time, as the female connector 220 moves, the first sealing block 214 abuts against the second sealing block 227, causing the second sealing block 227 and its second connecting rod 228 on one side to move into the female connector 220. At this time, the airflow channel on one side of the female connector 220 is also opened. At this time, the sealing gasket 2210 at one end of the second connecting rod 228 will move away from the sealing plate 223, exposing the vent on the sealing plate 223. A small portion of the hydrogen in the pipeline enters the left side of the second housing 221 through the vent, pressurizing the area for the first time and depressurizing the hydrogen in the pipeline for the first time.

[0054] Then, continue rotating the threaded cylinder 230 until the second sealing block 227 moves to one side of the guide cylinder 224. The continued movement of the second sealing block 227 will drive the guide cylinder 224 to move into the second housing 221. At this time, the sealing disc 223 at one end of the guide cylinder 224 will disengage from the isolation ring 222, exposing the hole on the isolation ring 222. At this time, the hydrogen in the pipeline will completely enter the left area inside the second housing 221 through the hole, and the area will be re-inflated and pressurized, which will also cause the hydrogen in the pipeline to be depressurized for the second time. The two depressurizations ensure that the hydrogen enters the valve 100 smoothly, and the valve 100 is less affected by the airflow, thus protecting the valve 100. The hydrogen in the pipeline can also flow smoothly, which also reduces the vibration of the pipeline and protects the pipeline.

[0055] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0056] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A quick-plug hydrogen valve, characterized in that, include A valve (100) is provided with a pressure detection component (180) which is used to detect the change in internal pressure of the valve (100) when it is opened and closed. Two quick connectors (200) are provided and installed at both ends of the valve (100). The valve (100) is quickly connected to the hydrogen pipeline through the quick connectors (200) at both ends. The quick connectors (200) are provided with a pressure relief mechanism, which includes a first pressure relief mechanism and a second pressure relief mechanism. The first pressure relief mechanism and the second pressure relief mechanism cooperate with each other to depressurize the high-pressure hydrogen in the pipeline twice.

2. The quick-connect hydrogen valve according to claim 1, characterized in that, The quick connector (200) includes a male connector (210), a female connector (220), and a threaded sleeve (230). The threaded sleeve (230) is slidably sleeved on one end of the male connector (210). The surface of the female connector (220) is provided with an external thread. The external thread of the female connector (220) and the internal thread of the threaded sleeve (230) cooperate with each other to lock the male connector (210) and the female connector (220) together after they are connected.

3. The quick-connect hydrogen valve according to claim 1, characterized in that, The air pressure detection assembly (180) includes an air cylinder (181), which is fixed to one side of the valve (100) and communicates with the inside of the valve (100). A piston (182) is slidably connected inside the air cylinder (181), and a push rod (183) is fixed to one side of the piston (182). One end of the push rod (183) slides through to the outside of the air cylinder (181), and the surface of the push rod (183) is provided with a scale. A return spring (184) is sleeved on the push rod (183), and both ends of the return spring (184) are respectively connected and fixed to the push rod (183) and the inner wall of the air cylinder (181).

4. The quick-connect hydrogen valve according to claim 2, characterized in that, The male connector (210) includes a first housing (211), which is a cylindrical structure with open ends. A slide cylinder (213) is slidably connected inside one of the open ends. A first spring (212) is provided inside the first housing (211) on one side corresponding to the slide cylinder (213). The two ends of the first spring (212) are fixedly connected to the inner wall of the slide cylinder (213) and the inner wall of the first housing (211), respectively. The inner end of the slide cylinder (213) is open and its outer end is closed. A recessed insertion groove (217) is provided on the outer end surface of the slide cylinder (213). A vent (218) with both ends penetrating is provided at the center of the insertion groove (217). An annular step (219) is integrally formed on the inner wall of the slide cylinder (213) corresponding to the outer periphery of the vent (218).

5. The quick-connect hydrogen valve according to claim 4, characterized in that, The first housing (211) is fixed inside by a first bracket (216) with a first connecting rod (215). One end of the first connecting rod (215) is fixed with a first sealing block (214). The shape and size of the first sealing block (214) are adapted to the vent (218). The first sealing block (214) is disposed inside the vent (218). The front end face of the first sealing block (214) is flush with the surface of the vent (218), and the rear end face of the first sealing block (214) abuts against the annular step (219). A sealing ring is provided between the first sealing block (214) and the annular step (219).

6. The quick-connect hydrogen valve according to claim 2, characterized in that, The female connector (220) includes a second housing (221), which is a cylindrical structure with openings at both ends. Its size and shape are adapted to the male connector (210). An isolation ring (222) is fixed inside the second housing (221). A hole is provided at the center of the isolation ring (222) for ventilation. A guide cylinder (224) is slidably connected to one side of the second housing (221) corresponding to the isolation ring (222) via a guide bracket (225). A sealing disc (223) is fixed to one end of the guide cylinder (224). The sealing disc (223) is fitted to one side of the isolation ring (222) to cover the holes on the isolation ring (222). A sealing ring is provided between the sealing disc (223) and the isolation ring (222). A second spring (226) is sleeved on the outside of the guide cylinder (224). The two ends of the second spring (226) are respectively connected and fixed to the guide cylinder (224) and the inner wall of the second housing (221).

7. The quick-connect hydrogen valve according to claim 6, characterized in that, A second connecting rod (228) is slidably inserted into the inside of the guide cylinder (224). Both ends of the second connecting rod (228) extend to the outside of the guide cylinder (224). A second sealing block (227) is fixed to one end of the second connecting rod (228). The second sealing block (227) is used to block the opening at one end of the second housing (221), and one end face of the second sealing block (227) is flush with the opening at one end of the second housing (221). The end of the second connecting rod (228) away from the second sealing block (227) slides through to one side of the sealing disc (223). 8) One end is fitted with a sealing gasket (2210), which is attached to one side of the sealing disc (223). The second connecting rod (228) is fitted with a third spring (2211) at one end corresponding to the sealing gasket (2210). The two ends of the third spring (2211) are respectively connected and fixed to the second connecting rod (228) and the inner wall of the second housing (221). The second connecting rod (228), the sealing gasket (2210) and the third spring (2211) cooperate with each other to form a first pressure relief mechanism, which is used to depressurize the high-pressure hydrogen gas inside for the first time when the pipeline is connected.

8. The quick-connect hydrogen valve according to claim 7, characterized in that, The sealing disc (223) has multiple vent holes around one side corresponding to the second connecting rod (228). The diameter of the vent holes is smaller than the diameter of the holes on the isolation ring (222). The sealing gasket (2210) is used to block the vent holes. The guide cylinder (224), the second spring (226) and the sealing disc (223) cooperate with each other to form a second pressure relief mechanism, which is used to relieve the pressure of the high-pressure hydrogen inside the pipeline for the second time when the pipeline is connected.

9. The quick-connect hydrogen valve according to claim 1, characterized in that, One end of the valve (100) is an air inlet (110), and the other end is an air outlet (120). The air inlet (110) and the air outlet (120) are staggered vertically. A connecting port (130) is provided at the connection position in the middle. A handwheel (140) is connected to the top of the valve (100) via a bracket. A screw (150) is fixed on the handwheel (140). A threaded sleeve (160) is threaded onto the screw (150). The threaded sleeve (160) is slidably connected to the valve (100). A plug (170) is fixed at the bottom end of the threaded sleeve (160). The plug (170) is located inside the valve (100) and is adapted to the connecting port (130).

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