A gas cylinder with hydrogen leakage monitoring function and a leakage monitoring method

Abstract

The application belongs to the technical field of hydrogen gas cylinders, and discloses a gas cylinder with a hydrogen leakage monitoring function and a leakage monitoring method. The gas cylinder comprises a support and a gas cylinder body. A plurality of fixing plates are arranged on one side of the support through screws, and one side of each of the plurality of fixing plates is fixedly provided with a sleeve rod. When the gas cylinder is used, the gas cylinder body may be subjected to external impact. The gas cylinder body is protected by the protective plate. The plurality of pressing plates and one side of the inner walls of the plurality of sleeve rods extrude the plurality of first springs. When the plurality of first springs are extruded, they generate a reverse force. As the degree of deformation of the plurality of first springs gradually releases the restoring force, a part of the impact force is slowed down, further slowing down the impact force on the protective plate, protecting the gas cylinder body, thereby protecting the gas cylinder when the gas cylinder is accidentally subjected to external impact, preventing the gas cylinder body from being cracked by collision and causing hydrogen leakage.

Description

Technical Field

[0001] This invention relates to the field of hydrogen cylinder technology, and in particular to a cylinder with hydrogen leakage monitoring function and a leakage monitoring method. Background Technology

[0002] With the rapid development of new energy vehicle technology, hydrogen, as a clean energy source, is widely used in hydrogen fuel cell vehicles. Hydrogen storage is one of the key factors to ensure the stable operation of fuel cell systems. Existing technologies typically use high-pressure hydrogen cylinders to store hydrogen. These hydrogen cylinders are specially designed to safely store hydrogen under certain pressure.

[0003] Many hydrogen cylinders use pressure sensors to detect the hydrogen pressure inside the cylinder to ensure that the cylinder is within the normal operating pressure range. When the pressure is too high or too low, the system will trigger a safety mechanism to release the hydrogen in the cylinder into a safe environment to avoid the danger of explosion or leakage.

[0004] When a car rolls over or collides, the hydrogen cylinder may be subjected to external impact, causing damage to the cylinder casing or loosening of the cylinder's connections, thus leading to hydrogen leakage. While existing hydrogen cylinder designs can protect the cylinder from impact to some extent, most designs rely on the structural strength of the cylinder itself and the tightness of the connection between the cylinder and the car. If these connections loosen or break during a collision, hydrogen will leak out, posing a greater danger to the accident scene. At the same time, most existing alarm systems rely on the alarm function of chip-controlled switches, but due to the high cost of chips and their potential inability to respond promptly in some harsh environments, hydrogen leaks are difficult to detect and handle in a timely manner. Summary of the Invention

[0005] This invention provides a gas cylinder with hydrogen leakage monitoring function and a leakage monitoring method. When using the gas cylinder, this invention protects the cylinder to prevent the cylinder body from being damaged by collision and cracking, which would lead to hydrogen leakage. When a car is overturned or hit, both ends of the gas cylinder are sealed to prevent the possibility of hydrogen leakage, thereby improving the practicality of the gas cylinder. When the gas pressure inside the gas cylinder is unstable, an alarm can be triggered in time.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a gas cylinder with hydrogen leakage monitoring function, the gas cylinder comprising:

[0007] Support frame and gas cylinder body;

[0008] Multiple fixing plates are respectively set on one side of the bracket by screws, and each of the multiple fixing plates has a sleeve rod fixed on one side. The multiple fixing plates can be disassembled and installed by rotating the screws, and the multiple sleeve rods provide support for the multiple fixing plates.

[0009] Multiple pressure plates are movably embedded in the inner walls of multiple sleeve rods, and a push rod is fixedly provided on one side of each pressure plate, allowing the multiple pressure plates to slide on the inner walls of the multiple sleeve rods;

[0010] Multiple first connecting shafts are fixedly disposed inside multiple push rods, and pressure plates are movably sleeved on the outer surfaces of multiple first connecting shafts. The multiple pressure plates can rotate about multiple second connecting shafts or multiple first connecting shafts.

[0011] As a further improvement of the present invention: two fixing rings are provided on the outer surface of the gas cylinder body. One side of the two fixing rings is fixed to one side of the bracket by screws. One side of the inner wall of the multiple sleeve rods is fixedly provided with a first spring. One end of the multiple first springs is respectively fixedly provided to one side of the multiple pressure plates. One side of the multiple pressure plates is movably embedded with a second connecting shaft. The multiple second connecting shafts are in pairs. Connecting plates are fixedly provided on both sides of the two sets of second connecting shafts. Protective plates are fixedly provided on the opposite side of the two connecting plates. The two fixing rings support the gas cylinder body and install the bracket on the new energy vehicle.

[0012] As a further improvement of the present invention: both ends of the gas cylinder body are provided with sealing components, both sealing components include connecting seats, the inner wall of the connecting seats is provided with square grooves, the inner wall of the square grooves is slidably provided with two sealing plates, one side of each of the two sealing plates is fixedly provided with a horizontal plate, both sides of the connecting seats are fixedly provided with hollow plates, and the two horizontal plates are respectively slidably provided on the inner walls of the two hollow plates.

[0013] As a further improvement of the present invention: two second springs are fixedly provided on one side of the inner wall of each of the two hollow plates, and one end of each of the second springs is fixedly provided on the opposite side of the two horizontal plates. A positioning plate is fixedly provided on one of the sealing plates, and an elastic sheet is fixedly provided on the inner wall of the positioning plate.

[0014] As a further improvement of the present invention: a limiting plate is fixedly provided on one side of the elastic sheet, a fixing groove is provided on one side of the other sealing plate, the positioning plate is movably embedded in the inner wall of the other sealing plate, a first conduit is installed on the opposite side of the two hollow plates, a second conduit is provided at one end of a plurality of first conduits through a flange, and one end of a plurality of second conduits is respectively fixedly provided on one side of a plurality of sleeve rods.

[0015] As a further improvement of the present invention: a valve seat is installed on one side of one of the connecting seats, and an air inlet pipe is installed on one side of the other connecting seat.

[0016] As a further improvement of the present invention: a pressure sensor is installed on the outer surface of the valve seat, an exhaust pipe is installed on one side of the valve seat, a first vent pipe is installed on one side of the valve seat, and an electric valve is installed on the outer surface of the first vent pipe.

[0017] As a further improvement of the present invention: a second vent pipe is fixedly provided on one side of the first vent pipe, a switch base is fixedly provided on one side of the second vent pipe, an alarm switch is installed on one side of the inner wall of the switch base, and a through pipe is installed on the outer surface of the second vent pipe.

[0018] As a further improvement of the present invention: a circular plate is movably embedded in the inner wall of the second vent pipe, a pressing plate is fixedly provided on one side of the circular plate, a third spring is fixedly provided on one side of the pressing plate, and one side of the third spring is fixedly provided on the inner wall of one side of the switch base.

[0019] A method for monitoring hydrogen leaks:

[0020] S1. Hydrogen can be injected into the cylinder body through the intake pipe and the hydrogen inside the cylinder body can be transported through the exhaust pipe. The bracket can be installed on the new energy vehicle and the cylinder body can be further installed.

[0021] S2. When a vehicle collides or rolls over, it will impact the protective plate. Under the action of force, the protective plate is transmitted to multiple pressure plates through two connecting plates. At this time, the multiple pressure plates change from an inclined state to a horizontal state. Furthermore, the multiple pressure plates squeeze multiple push rods respectively, which further causes the multiple pressure plates to slide on the inner walls of multiple sleeve rods. Then, the multiple pressure plates and the inner walls of multiple sleeve rods squeeze multiple first springs on one side. As the multiple first springs deform, they gradually release the restoring force, reducing part of the impact force and further reducing the impact force on the protective plate.

[0022] S3. Multiple pressure plates slide inside multiple sleeve rods, further compressing the air inside the multiple sleeve rods, and delivering the air to the interior of multiple second conduits, and further delivering it to the interior of multiple hollow plates through multiple first conduits. At this time, the two ends of the gas cylinder body are sealed by two sealing components to prevent hydrogen from flowing out of the interior of the gas cylinder body.

[0023] S4. The pressure sensor detects the change in pressure inside the gas cylinder body and monitors the change in pressure inside the gas cylinder body in real time. When hydrogen leaks inside the gas cylinder body, the electric valve is in the open state, and the hydrogen inside the gas cylinder body is delivered to the inside of the first vent pipe. Further hydrogen pushes the circular plate to move, and the connecting pipe and pipeline are connected together. The hydrogen is delivered to the outside of the car through the connected pipeline.

[0024] S5. The alarm switch is connected to the car's alarm system. Pressing it will trigger an alarm for hydrogen leakage. When the pressure sensor detects that the internal gas pressure of the gas cylinder is stable, the electric valve will close, and the elastic force of the third spring will push the press plate to release the pressure on the alarm switch.

[0025] Compared with the prior art, the advantages and positive effects of the present invention are as follows:

[0026] 1. In this invention, when using a gas cylinder, two fixing rings provide support for the cylinder body. The bracket is installed on a new energy vehicle, and the gas cylinder body is further installed. In the event of a collision or rollover, the gas cylinder body may be subjected to external impact. The protective plate protects the gas cylinder body. Upon impact, the gas cylinder body first impacts the protective plate, preventing direct contact with the impact point. Furthermore, when the protective plate is impacted, multiple pressure plates can slide along the inner walls of multiple sleeves. Multiple pressure-bearing plates can rotate around multiple second connecting shafts or multiple first connecting shafts. Under the action of force, the protective plate transmits the force to the multiple pressure-bearing plates through the two connecting plates. Above, multiple pressure plates change from their original inclined state to a horizontal state. These pressure plates then press against multiple push rods, causing the pressure plates to slide along the inner walls of the multiple sleeves. This, in turn, causes the pressure plates and the inner walls of the sleeves to press against multiple first springs. When compressed, these first springs generate a counterforce, gradually releasing their restoring force as they deform, thus mitigating some of the impact force and further reducing the impact force on the protective plate. This protects the gas cylinder body, preventing accidental external impacts and thus protecting the cylinder from cracking and hydrogen leakage.

[0027] 2. In this invention, when using the gas cylinder, hydrogen can be injected into the cylinder body through the air inlet pipe and transported through the exhaust pipe. When the vehicle collides or rolls over, the protective plate is impacted by the outside, causing multiple pressure plates to slide inside multiple sleeves, further compressing the air inside the sleeves and transporting the air to the inside of multiple second conduits, and further transporting it to the inside of multiple hollow plates through multiple first conduits. At this time, two sealing components seal both ends of the gas cylinder body to prevent hydrogen from flowing out of the gas cylinder body. Thus, when using the gas cylinder, if the car is rolled over or impacted, sealing both ends of the gas cylinder prevents the possibility of hydrogen leakage and improves the practicality of the gas cylinder.

[0028] 3. In this invention, when using a gas cylinder, a pressure sensor can detect changes in the internal pressure of the cylinder body, allowing for real-time monitoring of internal pressure changes. When hydrogen leaks inside the cylinder body, causing instability in the cylinder's pressure, the electric valve opens, delivering hydrogen from inside the cylinder body to the first vent pipe, and further through the second vent pipe. A circular plate can slide along the inner wall of the second vent pipe, where hydrogen pushes the circular plate to move. The connecting pipe and the main pipe are connected, delivering hydrogen to the outside of the vehicle through the connected pipe. During the movement of the circular plate, a pressing plate moves, causing the pressing plate to press the alarm switch. The alarm switch is connected to the vehicle's alarm system, triggering an alarm for hydrogen leakage. When the pressure sensor detects that the internal pressure of the cylinder body is stable, the electric valve closes, and the elastic force of the third spring pushes the pressing plate, releasing the pressure on the alarm switch. Thus, an alarm can be triggered promptly when the internal pressure of the cylinder is unstable. Attached Figure Description

[0029] Figure 1 This is a frontal three-dimensional structural diagram of a gas cylinder with hydrogen leakage monitoring function and a leakage monitoring method proposed in this invention.

[0030] Figure 2 This invention presents a side-view three-dimensional structural diagram of a gas cylinder with hydrogen leakage monitoring function and a leakage monitoring method.

[0031] Figure 3 This invention presents a three-dimensional structural diagram of a gas cylinder with hydrogen leakage monitoring function and a leakage monitoring method, excluding the support and protective plate.

[0032] Figure 4 This invention presents a schematic diagram of the internal three-dimensional structure of the sleeve rod in a gas cylinder with hydrogen leakage monitoring function and a leakage monitoring method.

[0033] Figure 5 This invention presents a schematic diagram of the internal three-dimensional structure of the connecting seat in a gas cylinder with hydrogen leakage monitoring function and a leakage monitoring method.

[0034] Figure 6 This invention presents a three-dimensional structural diagram of a gas cylinder with hydrogen leakage monitoring function and a leakage monitoring method, showing the disassembled sealing component.

[0035] Figure 7 This invention presents a three-dimensional structural diagram of a gas cylinder with hydrogen leakage monitoring function and the combination of two sealing plates in the leakage monitoring process.

[0036] Figure 8 This invention proposes a gas cylinder with hydrogen leakage monitoring function and a leakage monitoring method. The vent pipe is shown in a cross-sectional three-dimensional structural diagram.

[0037] Legend: 1. Bracket; 2. Gas cylinder body; 201. Fixing ring; 202. Protective plate; 203. Fixing plate; 204. Sleeve rod; 205. Pressure plate; 206. First spring; 207. Push rod; 208. First connecting shaft; 209. Pressure plate; 210. Second connecting shaft; 211. Connecting plate; 3. Sealing assembly; 301. Connecting seat; 302. Square groove; 303. Sealing plate; 304. Positioning plate; 305. Elastic sheet; 306. Limiting plate 307. Fixing groove; 308. Horizontal plate; 309. Second spring; 310. First conduit; 311. Second conduit; 312. Hollow plate; 4. Valve seat; 401. First vent pipe; 402. Electric valve; 403. Second vent pipe; 404. Press plate; 405. Third spring; 406. Through pipe; 407. Alarm switch; 408. Pressure sensor; 409. Exhaust pipe; 410. Switch base; 411. Inlet pipe; 412. Circular plate. Detailed Implementation

[0038] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0039] like Figures 1 to 8 As shown, the present invention provides a three-dimensional storage device for stacking button mushrooms. The gas cylinder includes: a support 1 and a gas cylinder body 2; multiple fixing plates 203, each fixed to one side of the support 1 by screws, and each side of the multiple fixing plates 203 is fixedly provided with a sleeve rod 204; multiple pressure plates 205, each movably embedded in the inner wall of the multiple sleeve rods 204, and each side of the multiple pressure plates 205 is fixedly provided with a push rod 207; multiple first connecting shafts 208, each fixedly provided inside the multiple push rods 207, and each outer surface of the multiple first connecting shafts 208 is movably sleeved with a pressure plate 209. Two fixing rings 201 are provided on the outer surface of the gas cylinder body 2. One side of the two fixing rings 201 is fixed to one side of the bracket 1 by screws. One side of the inner wall of multiple sleeve rods 204 is fixedly provided with a first spring 206. One end of the multiple first springs 206 is fixedly provided to one side of multiple pressure plates 205. One side of multiple pressure plates 209 is movably embedded with a second connecting shaft 210. The multiple second connecting shafts 210 are in pairs. Both sides of the two sets of second connecting shafts 210 are fixedly provided with connecting plates 211. A protective plate 202 is fixedly provided on the opposite side of the two connecting plates 211.

[0040] In use, the two fixing rings 201 support the gas cylinder body 2. The bracket 1 is installed on the new energy vehicle, further mounting the gas cylinder body 2. In the event of a collision or rollover, the gas cylinder body 2 may be subjected to external impact. The protective plate 202 protects the gas cylinder body 2. Upon impact, the gas cylinder body 2 will first strike the protective plate 202, preventing direct contact between the gas cylinder body 2 and the impact point. When the protective plate 202 is impacted, multiple pressure plates 205 can slide along the inner walls of multiple sleeve rods 204, and multiple pressure plates 209 can rotate around multiple second connecting shafts 210 or multiple first connecting shafts 208. The protective plate 202... Under the action, the force is transmitted to multiple pressure plates 209 through two connecting plates 211. At this time, the multiple pressure plates 209 change from their original inclined state to a horizontal state. Furthermore, the multiple pressure plates 209 press the multiple push rods 207 respectively, which further causes the multiple pressure plates 205 to slide on the inner wall of the multiple sleeve rods 204. Then, the multiple pressure plates 205 and one side of the inner wall of the multiple sleeve rods 204 press the multiple first springs 206. When the multiple first springs 206 are compressed, they will generate a reverse force. As the deformation of the multiple first springs 206 gradually increases, the restoring force is released, which reduces part of the impact force and further reduces the impact force on the protective plate 202, thus protecting the gas cylinder body 2.

[0041] Please see Figures 1 to 8 In one embodiment, both ends of the gas cylinder body 2 are provided with sealing components 3. Both sealing components 3 include connecting seats 301. A square groove 302 is opened on the inner wall of the connecting seat 301. Two sealing plates 303 are slidably arranged on the inner wall of the square groove 302. A horizontal plate 308 is fixedly arranged on one side of each of the two sealing plates 303. Hollow plates 312 are fixedly arranged on both sides of the connecting seat 301. The two horizontal plates 308 are slidably arranged on the inner walls of the two hollow plates 312 respectively. The two sealing components 3 seal both ends of the gas cylinder body 2 to prevent hydrogen from flowing out of the interior of the gas cylinder body 2. The two horizontal plates 308 can slide on the inner walls of the two hollow plates 312 respectively. When air is delivered into the interior of the two hollow plates 312, it will push the two horizontal plates 308 to move relative to each other, which will further cause the two sealing plates 303 to move relative to each other. During the movement, the positioning plate 304 will be inserted into the interior of the other sealing plate 303.

[0042] Please see Figures 1 to 8In one embodiment, two second springs 309 are fixedly installed on one side of the inner wall of each of the two hollow plates 312. One end of each of the second springs 309 is fixedly installed on the opposite side of the two horizontal plates 308. A positioning plate 304 is fixedly installed on one of the sealing plates 303. An elastic piece 305 is fixedly installed on the inner wall of the positioning plate 304. The elastic piece 305 has elasticity. When the positioning plate 304 is inserted into one of the sealing plates 303, the inclined surface of the limiting plate 306 is pushed by the other sealing plate 303, causing the limiting plate 306 to retract into one of the sealing plates. Inside the sealing plate 303, when the limiting plate 306 is inside the fixing groove 307, the elastic force of the elastic piece 305 will push the limiting plate 306 upward, causing the limiting plate 306 to be stuck inside the fixing groove 307, further connecting the two sealing plates 303 together. At this time, the gas inside the gas cylinder body 2 will not flow out through the connecting seat 301 due to the sealing of the two sealing plates 303, thus completing the sealing process. By pressing the limiting plate 306 downward, the elastic force generated by the multiple second springs 309 will pull the two sealing plates 303, causing the two sealing plates 303 to return to their original positions.

[0043] Please see Figures 1 to 8 In one embodiment, a limiting plate 306 is fixedly provided on one side of the elastic sheet 305, and a fixing groove 307 is provided on one side of another sealing plate 303. The positioning plate 304 is movably embedded in the inner wall of the other sealing plate 303. A first conduit 310 is installed on the opposite side of the two hollow plates 312. A second conduit 311 is provided at one end of the multiple first conduits 310 through a flange. One end of the multiple second conduits 311 is fixedly provided on one side of the multiple sleeve rods 204. When the protective plate 202 is impacted by the outside, the multiple pressure plates 205 slide inside the multiple sleeve rods 204, further compressing the air inside the multiple sleeve rods 204, and delivering the air to the inside of the multiple second conduits 311, and further delivering it to the inside of the multiple hollow plates 312 through the multiple first conduits 310.

[0044] Please see Figures 1 to 8 In one embodiment, a valve seat 4 is installed on one side of one of the connectors 301, and an air inlet pipe 411 is installed on one side of the other connector 301. Hydrogen can be injected into the gas cylinder body 2 through the air inlet pipe 411, and the hydrogen inside the gas cylinder body 2 can be transported through the exhaust pipe 409.

[0045] Please see Figures 1 to 8In one embodiment, a pressure sensor 408 is installed on the outer surface of the valve seat 4, an exhaust pipe 409 is installed on one side of the valve seat 4, a first vent pipe 401 is installed on one side of the valve seat 4, and an electric valve 402 is installed on the outer surface of the first vent pipe 401. The pressure sensor 408 detects the stability of the gas pressure inside the gas cylinder body 2. When the gas pressure is too high, hydrogen leakage occurs in the gas cylinder body 2. At this time, the gas pressure inside the gas cylinder body 2 is transported to a safe external environment to avoid excessive hydrogen pressure or other potential dangers inside the gas cylinder body 2. The electric valve 402 controls whether hydrogen is transported into the first vent pipe 401. When the gas pressure is too high, the electric valve 402 is in the open state. When the electric valve 402 is closed, the gas pressure inside the gas cylinder body 2 is stable. The pressure sensor 408 can detect the change in pressure inside the gas cylinder body 2 and monitor the change in pressure inside the gas cylinder in real time. The signal output terminal of the pressure sensor 408 is connected to the vehicle's monitoring system to ensure that a timely response can be triggered when hydrogen leaks. This is prior art and will not be described further here.

[0046] Please see Figures 1 to 8 In one embodiment, a second vent pipe 403 is fixedly disposed on one side of the first vent pipe 401, and a switch base 410 is fixedly disposed on one side of the second vent pipe 403. An alarm switch 407 is installed on one side of the inner wall of the switch base 410, and a through pipe 406 is installed on the outer surface of the second vent pipe 403. The alarm switch 407 is connected to the car's alarm system. Pressing it will trigger an alarm for hydrogen leakage. In the prior art, the alarm is triggered by pressing the alarm switch 407 through a chip.

[0047] Please see Figures 1 to 8 In one embodiment, a circular plate 412 is movably embedded in the inner wall of the second vent pipe 403. A pressing plate 404 is fixedly disposed on one side of the circular plate 412, and a third spring 405 is fixedly disposed on one side of the pressing plate 404. One side of the third spring 405 is fixedly disposed on the inner wall of one side of the switch base 410. The circular plate 412 can slide on the inner wall of the second vent pipe 403. During the movement of the circular plate 412, the pressing plate 404 is driven to move. The third spring 405 has elastic force. When the electric valve 402 is closed, the elastic force of the third spring 405 pushes the pressing plate 404, releasing the pressure on the alarm switch 407.

[0048] The working principle and usage process of this invention: When using the gas cylinder, the two fixing rings 201 support the gas cylinder body 2. The bracket 1 is installed on the new energy vehicle, and then the gas cylinder body 2 is installed. When the vehicle collides or overturns, the gas cylinder body 2 may be subjected to external impact. The protective plate 202 protects the gas cylinder body 2. When impacted, it will first hit the protective plate 202, preventing the gas cylinder body 2 from directly contacting the impact point. When the protective plate 202 is impacted, multiple pressure plates 205 can slide on the inner wall of multiple sleeve rods 204 respectively. Multiple bearing plates 209 can rotate around multiple second connecting shafts 210 or multiple first connecting shafts 208. Under the action of force, the protective plate 202 is transmitted to the gas cylinder body through the two connecting plates 211. On multiple pressure plates 209, the pressure plates 209 change from an inclined state to a horizontal state. The multiple pressure plates 209 further press multiple push rods 207, which further causes multiple pressure plates 205 to slide on the inner wall of multiple sleeve rods 204. Then, the multiple pressure plates 205 and one side of the inner wall of multiple sleeve rods 204 press multiple first springs 206. When the multiple first springs 206 are compressed, they will generate a reverse force. As the multiple first springs 206 deform, they gradually release the restoring force, which reduces part of the impact force and further reduces the impact force on the protective plate 202, thus protecting the gas cylinder body 2. In this way, when the gas cylinder is accidentally hit by an external impact, it will protect the gas cylinder and prevent the gas cylinder body 2 from being cracked by the impact, resulting in hydrogen leakage.

[0049] When using the gas cylinder, hydrogen can be injected into the cylinder body 2 through the inlet pipe 411, and the hydrogen inside the cylinder body 2 can be delivered through the exhaust pipe 409. When the vehicle collides or rolls over, the protective plate 202 is impacted by the outside, causing multiple pressure plates 205 to slide inside multiple sleeve rods 204, further compressing the air inside the multiple sleeve rods 204 and delivering the air to the inside of multiple second conduits 311, and further delivering it to the inside of multiple hollow plates 312 through multiple first conduits 310. At this time, the two ends of the cylinder body 2 are sealed by two sealing components 3 to prevent hydrogen from flowing out of the cylinder body 2. The sealing process of the sealing components 3 is as follows: two sealing plates 303 can slide on the inner wall of the square groove 302, and two horizontal plates 308 can slide on the inner wall of the two hollow plates 312. The air delivered to the inside of the two hollow plates 312 will push the two horizontal plates 308 to move relative to each other, which will further cause the two sealing plates 303 to move relative to each other. During the movement, the positioning plate 304 will insert into the other sealing plate 3. Inside 03, the elastic piece 305 has elasticity. When the positioning plate 304 is inserted into one of the sealing plates 303, the inclined surface of the limiting plate 306 is pushed by the other sealing plate 303, causing the limiting plate 306 to retract into one of the sealing plates 303. When the limiting plate 306 is inside the fixing groove 307, the elasticity of the elastic piece 305 will push the limiting plate 306 upward, causing the limiting plate 306 to be stuck inside the fixing groove 307, further connecting the two sealing plates 303 together. At this time, the air... The gas inside the cylinder body 2 will not flow out through the connecting seat 301 due to the sealing of the two sealing plates 303, thus completing the sealing process. By pressing down on the limiting plate 306, the elastic force generated by multiple second springs 309 will pull the two sealing plates 303 back to their original positions. At this time, the hydrogen inside the cylinder body 2 can pass through the connecting seat 301. Thus, when the car is overturned or hit, the two ends of the cylinder can be sealed to prevent the possibility of hydrogen leakage and improve the practicality of the cylinder.

[0050] When using the gas cylinder, the pressure sensor 408 can detect changes in the internal pressure of the gas cylinder body 2, monitoring these changes in real time. When hydrogen leaks from the gas cylinder body 2, causing pressure instability, the electric valve 402 opens, delivering hydrogen from the gas cylinder body 2 to the first vent pipe 401, and further through the second vent pipe 403. The circular plate 412 can slide along the inner wall of the second vent pipe 403. The hydrogen pushes the circular plate 412 to move, connecting the through pipe 406 to the main pipe, allowing the gas to pass through... The connected pipe delivers hydrogen to the outside of the vehicle, and as the circular plate 412 moves, it drives the pressing plate 404 to move, further causing the pressing plate 404 to press the alarm switch 407. The alarm switch 407 is connected to the vehicle's alarm system. After being pressed, it will trigger an alarm for hydrogen leakage. When the pressure sensor 408 detects that the internal gas pressure of the gas cylinder body 2 is stable, the electric valve 402 closes, and the elastic force of the third spring 405 pushes the pressing plate 404, releasing the pressure on the alarm switch 407. Thus, when the internal gas pressure of the gas cylinder is unstable, an alarm can be triggered in a timely manner.

[0051] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art. The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0052] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0053] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A gas cylinder with hydrogen leak monitoring function, characterized in that, The gas cylinder includes: Support (1) and gas cylinder body (2); Multiple fixing plates (203) are respectively set on one side of the bracket (1) by screws, and a sleeve rod (204) is fixedly set on one side of each of the multiple fixing plates (203). Multiple pressure plates (205) are movably embedded in the inner walls of multiple sleeve rods (204), and a push rod (207) is fixedly provided on one side of each of the multiple pressure plates (205). Multiple first connecting shafts (208) are respectively fixedly disposed inside multiple push rods (207), and pressure plates (209) are movably sleeved on the outer surfaces of multiple first connecting shafts (208). Two fixing rings (201) are provided on the outer surface of the gas cylinder body (2). One side of the two fixing rings (201) is fixed to one side of the bracket (1) by screws. One side of the inner wall of the multiple sleeve rods (204) is fixedly provided with a first spring (206). One end of the multiple first springs (206) is fixedly provided to one side of the multiple pressure plates (205). One side of the multiple pressure plates (209) is movably embedded with a second connecting shaft (210). The multiple second connecting shafts (210) are in pairs. Both sides of the two sets of second connecting shafts (210) are fixedly provided with connecting plates (211). The opposite side of the two connecting plates (211) is fixedly provided with a protective plate (202). Both ends of the gas cylinder body (2) are provided with sealing components (3). Both sealing components (3) include connecting seats (301). A square groove (302) is opened on the inner wall of the connecting seat (301). Two sealing plates (303) are slidably arranged on the inner wall of the square groove (302). A horizontal plate (308) is fixedly arranged on one side of each of the two sealing plates (303). Hollow plates (312) are fixedly arranged on both sides of the connecting seat (301). The two horizontal plates (308) are slidably arranged on the inner wall of the two hollow plates (312). A first conduit (310) is installed on the opposite side of each of the two hollow plates (312). A second conduit (311) is provided at one end of one of the multiple first conduits (310) through a flange. One end of the multiple second conduits (311) is fixedly arranged on one side of the multiple sleeves (204). A valve seat (4) is installed on one side of one of the connecting seats (301). A pressure sensor (408) is installed on the outer surface of the valve seat (4). A first vent pipe (401) is installed on one side of the valve seat (4). An electric valve (402) is installed on the outer surface of the first vent pipe (401). A second vent pipe (403) is fixedly installed on one side of the first vent pipe (401). A switch base (410) is fixedly installed on one side of the second vent pipe (403). An alarm switch (407) is installed on one side of the inner wall of the switch base (410). A circular plate (412) is movably embedded in the inner wall of the second vent pipe (403). A pressing plate (404) is fixedly installed on one side of the circular plate (412). A third spring (405) is fixedly installed on one side of the pressing plate (404). One side of the third spring (405) is fixedly installed on the inner wall of one side of the switch base (410). An exhaust pipe (409) is installed on one side of the valve seat (4), a through pipe (406) is installed on the outer surface of the second vent pipe (403), and an intake pipe (411) is installed on one side of another connecting seat (301).

2. A gas cylinder with hydrogen leakage monitoring function according to claim 1, characterized in that: Two second springs (309) are fixedly installed on one side of the inner wall of each of the two hollow plates (312), and one end of each of the second springs (309) is fixedly installed on the opposite side of the two horizontal plates (308).

3. A gas cylinder with hydrogen leakage monitoring function according to claim 2, characterized in that: One of the sealing plates (303) is fixedly provided with a positioning plate (304), and an elastic sheet (305) is fixedly provided on the inner wall of the positioning plate (304).

4. A gas cylinder with hydrogen leak monitoring function according to claim 3, characterized in that: A limiting plate (306) is fixedly provided on one side of the elastic sheet (305), and a fixing groove (307) is provided on one side of the other sealing plate (303). The positioning plate (304) is movably embedded in the inner wall of the other sealing plate (303).

5. A method for monitoring hydrogen leakage, characterized in that: A gas cylinder with hydrogen leak monitoring function according to any one of claims 1-4 includes the following steps: S1. Hydrogen can be injected into the gas cylinder body (2) through the air inlet pipe (411), and the hydrogen inside the gas cylinder body (2) is transported through the exhaust pipe (409). The bracket (1) is installed on the new energy vehicle, and the gas cylinder body (2) is further installed. S2. When the vehicle collides or rolls over, it will impact the protective plate (202). Under the action of force, the protective plate (202) is transmitted to multiple pressure plates (209) through two connecting plates (211). At this time, the multiple pressure plates (209) change from the original inclined state to the horizontal state. Furthermore, the multiple pressure plates (209) squeeze multiple push rods (207) respectively, which further causes multiple pressure plates (205) to slide on the inner wall of multiple sleeve rods (204). Then, the inner wall of multiple pressure plates (205) and multiple sleeve rods (204) squeezes multiple first springs (206) on one side. As the deformation of multiple first springs (206) gradually increases, the restoring force is released, which reduces part of the impact force and further reduces the impact force on the protective plate (202). S3. Multiple pressure plates (205) slide inside multiple sleeve rods (204) to further compress the air inside the multiple sleeve rods (204) and deliver the air to the interior of multiple second conduits (311), and further deliver it to the interior of multiple hollow plates (312) through multiple first conduits (310). At this time, the two ends of the gas cylinder body (2) are sealed by two sealing components (3) to prevent hydrogen from flowing out of the interior of the gas cylinder body (2). S4. The pressure sensor (408) detects the change in internal pressure of the gas cylinder body (2) and monitors the change in internal pressure of the gas cylinder in real time. When hydrogen leaks inside the gas cylinder body (2), the electric valve (402) is in the open state, and the hydrogen inside the gas cylinder body (2) is transported to the inside of the first vent pipe (401). The hydrogen pushes the circular plate (412) to move, and the connecting pipe (406) is connected to the pipeline. The hydrogen is transported to the outside of the car through the connected pipeline. S5. The alarm switch (407) is connected to the car's alarm system. After pressing, it will trigger an alarm for hydrogen leakage. When the pressure sensor (408) detects that the internal gas pressure of the gas cylinder body (2) is stable, the electric valve (402) closes, and the elastic force of the third spring (405) pushes the pressing plate (404) to release the pressure on the alarm switch (407).

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