A hydrogen gas path docking device

Abstract

The application discloses a hydrogen road docking device and belongs to the field of hydrogen energy application. The device comprises a connecting block, a pressure reducing valve, a mounting plate, an elastic piece, a quick-mount female joint and a knob. The pressure reducing valve is fixedly installed on the connecting block, so that the pressure reducing valve and the quick-mount female joint move horizontally along the central axis direction of the hydrogen storage device together with the connecting block, the quick-mount female joint and the quick-mount male joint are disassembled and assembled, the position of the hydrogen storage device is fixed, the weight of the connecting block and the pressure reducing valve is relatively small, the stability of the whole docking device is relatively high, and even if bumping occurs, the connecting part will not be separated or gas leakage will not occur.

Description

Technical Field

[0001] This invention belongs to the field of hydrogen energy application, and in particular a hydrogen gas connection device. Background Technology

[0002] A hydrogen storage cylinder is a container used to store hydrogen for hydrogen-producing products. Hydrogen storage cylinders typically transmit hydrogen via quick-connect female and male connectors.

[0003] Existing technical solutions typically involve fixing the hydrogen storage tank's gas pipe and connection device to the vehicle frame. A flexible device is installed below the hydrogen storage tank to support the connection between the tank and the gas pipe. However, this structure has poor stability, and the connection may separate or leak when the road surface is uneven or bumpy. In addition, the device is cumbersome to install and disassemble, making it inconvenient for users to replace the hydrogen storage tank themselves. Summary of the Invention

[0004] To overcome the above-mentioned technical defects, the present invention provides a hydrogen gas path docking device to solve the problems involved in the background art.

[0005] This invention provides a hydrogen gas path docking device, comprising:

[0006] The mounting plate is installed on the hydrogen storage device attachment; and a quick-connect male connector is provided on the gas outlet of the hydrogen storage device.

[0007] The connecting block is slidably mounted on the mounting plate;

[0008] A pressure reducing valve is fixedly installed on the connecting block and can move horizontally along the central axis of the hydrogen storage device as the connecting block moves. One end of the pressure reducing valve is connected to the hydrogen consumption device via a gas pipe, and the other end is equipped with a quick-connect female connector. The quick-connect female connector is provided with a gas passage opening and closing sliding sleeve suitable for mating with a quick-connect male connector.

[0009] An elastic element is disposed between the mounting plate and the connecting block;

[0010] A toggle switch is adapted to drive the opening and closing sleeve to move away from the pressure reducing valve.

[0011] Preferably or optionally, the hydrogen storage device attachment is a mounting base for placing and installing the hydrogen storage device.

[0012] Preferably or optionally, the end of the connecting block away from the hydrogen storage device is bent downward to form a first bend, and the end closer to the hydrogen storage device is bent downward to form a second bend, so that a semi-closed receiving cavity is formed in the middle of the connecting block for installing a pressure reducing valve.

[0013] Preferably or optionally, holes are provided in the middle of both the first bend and the second bend to allow the first interface and the second interface to pass through.

[0014] Preferably or optionally, the mounting plate is provided with slide rails on both sides, and the bottom of the first bend is provided with slots on both sides, and the connecting block is secured to the mounting plate by the cooperation of the slots and slide rails.

[0015] Preferably or optionally, the elastic element includes: a screw disposed between the first bend and the second bend and passing through the mounting plate or hydrogen storage device attachment, and a spring fitted on the screw and abutting at both ends against the first bend and the mounting plate or hydrogen storage device attachment, respectively.

[0016] Preferably or optionally, four mounting posts are respectively provided at the four corners of the upper surface of the mounting plate, and the mounting post on the side away from the hydrogen storage device is defined as the first mounting post; the mounting post on the side closer to the hydrogen storage device is defined as the second mounting post.

[0017] The elastic element includes: a screw fixedly installed on the second bending portion, passing sequentially through the second mounting post, the first bending portion and the first mounting post, and extending to a predetermined distance outside the first mounting post; and a spring fitted on the screw, with its two ends respectively abutting against the second mounting post and the first bending portion.

[0018] Preferably or optionally, the predetermined distance is greater than or equal to the sliding distance of the opening and closing sleeve.

[0019] Preferably or optionally, the toggle switch is rotatably mounted on the side of the connecting block at its center position, and its bottom is connected to the opening and closing sliding sleeve.

[0020] Preferably or optionally, a pressing block is also provided on the upper part of the connecting block on the side away from the hydrogen storage device.

[0021] This invention relates to a hydrogen connection device, which, compared to existing technologies, offers the following advantages: By fixing a pressure-reducing valve to the connecting block, the pressure-reducing valve and the quick-connect female connector move horizontally along the central axis of the hydrogen storage device with the connecting block, enabling the disassembly and installation of the quick-connect female and male connectors. Because the hydrogen storage device is fixed in position, and the pressure-reducing valve on the connecting block is relatively lightweight, the entire connection device is structurally reliable and highly stable. Even during bumps, the connection will not separate or leak. The smoother movement process makes the assembly and disassembly of the male and female connectors easier, and the simple structure and convenient operation further enhance its advantages. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the docking device and mounting base in Embodiment 1 of the present invention.

[0023] Figure 2 This is an exploded schematic diagram of the docking device in Embodiment 1 of the present invention.

[0024] Figure 3 This is a partial enlarged view of the mounting plate in Embodiment 1 of the present invention.

[0025] Figure 4 This is a partial enlarged view of the connecting block in Embodiment 1 of the present invention.

[0026] Figure 5 This is a schematic diagram of the docking device (with the pressure reducing valve hidden) in Embodiment 1 of the present invention.

[0027] Figure 6 This is a schematic diagram of the docking device and mounting base in Embodiment 2 of the present invention.

[0028] Figure 7 This is an exploded schematic diagram of the docking device in Embodiment 2 of the present invention.

[0029] Figure 8 This is a partial enlarged view of the mounting plate in Embodiment 2 of the present invention.

[0030] Figure 9 This is a partial enlarged view of the connecting block in Embodiment 2 of the present invention.

[0031] Figure 10 This is a schematic diagram of the docking device in Embodiment 2 of the present invention.

[0032] Figure 11 This is a schematic diagram of the pressure reducing valve in Embodiments 1 and 2 of the present invention.

[0033] Figure 12 This is a side view of the pressure reducing valve in Embodiments 1 and 2 of the present invention.

[0034] Figure 13 This is a schematic diagram of the quick-connect male connector installed in the hydrogen storage device in Embodiments 1 and 2 of the present invention.

[0035] The reference numerals in the attached drawings are as follows: 100, mounting base; 110, positioning post; 200, mounting plate; 210, sliding groove; 211, slide rail; 220, body; 221, first mounting post; 222, second mounting post; 223, positioning hole; 300, connecting block; 310, first bend; 320, second bend; 330, hole; 340, slot; 400, pressure reducing valve; 410, first interface; 420, second interface. 440, Mounting hole; 500, Quick-connect female connector; 510, Opening and closing sliding sleeve; 600, Bottle valve; 610, Valve body; 620, Quick-connect male connector; 621, Air core rod; 631, Safety bolt; 632, Safety plate; 633, Flat washer; 640, Sealing ring; 650, Aluminum filter element; 700, Elastic element; 710, Screw; 711, Limiting element; 720, Spring; 800, Toggle switch; 900, Pressing block. Detailed Implementation

[0036] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the invention. However, it will be apparent to those skilled in the art that the invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid obscuring the invention.

[0037] Example 1

[0038] See appendix Figures 1 to 5 Appendix Figures 11 to 13 A hydrogen storage device hydrogen circuit docking device includes: a connecting block 300, a pressure reducing valve 400, a mounting plate 200, an elastic element 700, a quick-connect female connector 500, and a toggle switch 800.

[0039] The mounting plate 200 is mounted on the hydrogen storage device attachment, which is a mounting base 100 for placing and installing the hydrogen storage device. The mounting plate 200 is fixedly connected to one side of the mounting base 100 by means of adhesive, welding, screws, or integral molding. The hydrogen storage device is fixedly mounted on the mounting base 100, and a quick-connect male connector 620 is provided on the gas outlet of the hydrogen storage device for gas connection. In this embodiment, the mounting plate 200 includes a body part 220 and a sliding groove part 210. The body part 220 has a positioning hole 223, and the mounting base 100 has a positioning post 110. The mounting plate 200 and the mounting base 100 are precisely installed by the cooperation of the positioning post 110 and the positioning hole 223. The sliding groove part 210 is used to install the connecting block 300, so that the connecting block 300 can be slidably mounted on the mounting plate 200.

[0040] See attached Figure 11 The pressure reducing valve 400 is provided with a first interface 410 and a second interface 420. A quick-connect female connector 500 is externally connected to the second interface 420. A gas pipe is externally connected to the first interface 410, and the gas pipe is connected to the hydrogen consumption device. The quick-connect female connector 500 can be connected to the hydrogen storage device through a quick-connect male connector 620. By placing the functional pressure reducing valve 400 outside the hydrogen storage device, the volume of the hydrogen storage device is reduced, making it more convenient for users to transport and replace. By providing a quick-connect female connector 500 at the second interface 420 of the functional pressure reducing valve 400, it can be connected to the quick-connect male connector 620 at the hydrogen outlet of the hydrogen storage device. When the quick-connect male connector 620 is inserted into the quick-connect female connector 500, the hydrogen consumption device or hydrogen production device and the hydrogen storage device form a passage, realizing the automatic connection of the hydrogen supply pipeline and reducing the disassembly and installation of the pipeline.

[0041] The hydrogen storage device includes a hydrogen storage cylinder and a cylinder valve 600. The cylinder valve 600 is sealed and installed on the interface of the hydrogen storage cylinder. The cylinder valve 600 includes a valve body 610 and a quick-connect male connector 620. One end of the valve body 610 is installed at the interface of the hydrogen storage cylinder using a sealed connection or an integrally formed connection. In this embodiment, the valve body 610 is installed at the interface of the hydrogen storage cylinder via a threaded connection, and an O-ring seal 640 is also provided between the valve body 610 and the interface of the hydrogen storage cylinder to ensure the sealing of the connection between the hydrogen storage cylinder and the valve body 610. A pressure relief device is provided on the side of the valve body 610. The pressure relief device includes a safety bolt 631, a safety plate 632, and a flat washer 633. A channel connecting to the outside is provided inside the safety bolt 631; the safety plate 632 is located on one side inside the safety bolt 631, separating the inside of the valve body 610 from the outside; the flat washer 633 is located between the safety plate 632 and the safety bolt 631, for sealing connection of the safety plate 632. When the pressure inside the hydrogen storage cylinder is too high, exceeding the limit pressure that the safety plate 632 can withstand, the channel inside the safety bolt 631 connects with the hydrogen flow channel inside the valve body 610, providing pressure relief protection. The quick-connect male connector 620 is sealed to the other end of the valve body 610, and a gas core rod 621 is provided inside the quick-connect male connector 620. The gas core rod 621 tends to close the hydrogen flow channel formed by the valve body 610 and / or the quick-connect male connector 620. Therefore, when the quick-connect male connector 620 is in the open state, it has a disconnection and shut-off function, causing the gas storage device to form an open circuit. When the quick-connect male connector 620 is engaged with the quick-connect female connector 500, the quick-connect female connector 500 is provided with a push pin inside, which can push the gas core rod 621 to move, opening the hydrogen flow channel formed by the valve body 610 and / or the quick-connect male connector 620, so that the hydrogen consumption device or hydrogen production device and the hydrogen storage device form a passage, realizing the automatic connection of the hydrogen supply pipeline and reducing the disassembly and installation of the pipeline.

[0042] Similarly, when the quick-connect female connector 500 is in the open state, it also has a flow-blocking function, causing the hydrogen consumption device or hydrogen production device to form an open circuit. The quick-connect female connector 500 automatically seals the air inlet of the pressure reducing valve 400, improving the airtightness of the pressure reducing valve 400 and the gas circuit, ensuring the hydrogen purity of the entire hydrogen supply pipeline, and ensuring the safety of hydrogen energy use.

[0043] However, those skilled in the art will recognize that the pressure reducing valve 400 also includes the functions of one or more valves, such as a safety valve, a pressure regulating valve, or a control valve. By combining multiple functional valves into an integrated pressure reducing valve 400, the pressure reducing valve 400 has a reasonable design structure, high integration, good safety performance, and long service life.

[0044] Since the hydrogen storage device contains solid hydrogen storage material, a filtration system is typically installed inside to prevent the material from escaping. Current filtration systems generally use a cotton swab and filter tip combination. However, this method suffers from unstable filtration performance and unreliability. After prolonged use, it has been observed that the cotton swab and filter tip become clogged, and even the solid hydrogen storage material can escape through the swab and filter tip.

[0045] See appendix Figure 13 In this example, the filtration device was changed to use an aluminum filter element 650. Specifically, the aluminum filter element 650 is a column with a dense honeycomb mesh structure made by sintering metallic aluminum or aluminum alloy materials. This greatly improves filtration performance, enhances stability, prevents the escape of solid hydrogen storage materials, and also prevents clogging by metal powder.

[0046] In addition, to improve the safety of the hydrogen storage device, a safety plate 632 is provided on the side of the quick-connect male connector 620. The safety plate 632 is fixed to the gas flow channel of the quick-connect male connector 620 by a safety bolt 631, and a flat washer 633 is provided at the connection between the safety bolt 631 and the safety plate 632. When the pressure in the hydrogen storage device and / or the quick-connect male connector 620 is too high, the safety plate 632 can play a pressure relief protection role.

[0047] See appendix Figure 12 The pressure reducing valve 400 and the quick-connect female connector 500 are connected at positions offset from the central axis of the pressure reducing valve 400, forming an eccentric structure. Because the hydrogen in the hydrogen storage device, after passing through the aluminum filter element 650, quick-connect male connector 620, and quick-connect female connector 500, forms multiple streams of hydrogen with different flow velocities, the eccentric design of the second interface 420 ensures that the hydrogen flows at essentially the same speed when entering the inlet of the pressure reducing valve 400 after being guided by the second interface 420 with a certain degree of eccentricity. This avoids the generation of eddies, improves the pressure regulating accuracy of the pressure reducing valve 400, and extends the service life of the pressure reducing valve 400.

[0048] In addition, the pressure reducing valve 400 has multiple mounting holes 440 on its side, allowing it to be fixedly installed in a predetermined position using bolts or screws. The connecting block 300 is slidably mounted on the mounting plate 200. (See appendix) Figure 4 The connecting block 300 is bent downwards at the end furthest from the hydrogen storage device to form a first bend 310, and at the end closest to the hydrogen storage device to form a second bend 320, creating a semi-enclosed receiving cavity in the middle of the connecting block 300 for installing the pressure reducing valve 400. It is understood that holes 330 are pre-drilled in the middle of both the first bend 310 and the second bend 320 to allow the first interface 410 and the second interface 420 to pass through. (See appendix) Figure 3 Appendix Figure 4 The mounting plate 200 is provided with slide rails 211 on both sides, and the bottom of the first bent part 310 is provided with slots 340 on both sides. The connecting block 300 is engaged on the mounting plate 200 through the cooperation of the slots 340 and the slide rails 211.

[0049] The pressure reducing valve 400 is fixedly installed on the connecting block 300 and can move horizontally along the central axis of the hydrogen storage device with the connecting block 300. One end of the pressure reducing valve 400 is connected to the hydrogen consumption device through a gas pipe, and the other end is equipped with a quick-connect female connector 500. The quick-connect female connector 500 is provided with a gas passage opening and closing sliding sleeve 510 suitable for cooperating with the quick-connect male connector 620.

[0050] The elastic element 700 is disposed between the mounting plate 200 and the connecting block 300. Specifically, the elastic element 700 includes: a screw 710 disposed between the first bending portion 310 and the second bending portion 320 and passing through the mounting plate 200 or the mounting base 100; and a spring 720 fitted on the screw 710, with both ends abutting against the first bending portion 310 and the mounting plate 200 or the hydrogen storage device mounting base 100, respectively. At least one end of the screw 710 is fixed to the first bending portion 310 or the second bending portion 320, and the screw 710 can slide along the mounting plate 200 or the mounting base 100. The connecting block 300 undergoes relative displacement with the mounting plate 200 or the mounting base 100, thereby enabling the pressure reducing valve 400 and the quick-connect female connector 500 to move horizontally along the central axis of the hydrogen storage device.

[0051] The toggle switch 800 is rotatably mounted on the side of the connecting block 300 at its center position, and its bottom is connected to the opening and closing sleeve 510. By toggling the upper part of the toggle switch 800, the user drives the opening and closing sleeve 510 to move away from the pressure reducing valve 400, causing the quick-connect female connector 500 of the pressure reducing valve 400 to separate from the quick-connect male connector 620 of the hydrogen storage device. Due to the restoring force of the spring 720, the connecting block 300 and the pressure reducing valve 400 are pushed to move away from the hydrogen storage device.

[0052] To facilitate understanding of the technical solution of the hydrogen path docking device in this embodiment, its working principle is briefly explained: see Appendix Figure 5During installation, the user presses the connecting block 300, which drives the pressure reducing valve 400 forward along the slot 340 until the quick-connect female connector 500 of the pressure reducing valve 400 is fixedly connected to the quick-connect male connector 620 of the hydrogen storage device. At this time, the spring 720 is in a compressed state. During disassembly, the upper part of the toggle switch 800 is turned, driving the opening and closing sliding sleeve 510 to move away from the hydrogen storage device. The quick-connect female connector 500 of the pressure reducing valve 400 separates from the quick-connect male connector 620 on the hydrogen storage device. Due to the restoring force of the spring 720, the connecting block 300 and the pressure reducing valve 400 are pushed to move away from the hydrogen storage device. Throughout the process, because the position of the hydrogen storage device is fixed and the weight of the connecting block 300 and the pressure reducing valve 400 is relatively small, the impact on the entire system is relatively small. Therefore, the structure of the entire docking device is reliable and has high stability. Even if bumps occur, the connection will not separate or leak. Furthermore, the hydrogen connection device allows for rapid separation of the quick-connect female connector 500 and the quick-connect male connector 620, enabling quick assembly and disassembly of the hydrogen storage device. When the user needs to disassemble the hydrogen storage device, simply rotating the dial 800 allows for easy removal, greatly improving installation and replacement efficiency. The smoother and more fluid movement makes assembling and disassembling the quick-connect male connector 620 and the quick-connect female connector 500 easier, with a simple structure and convenient operation.

[0053] Example 2

[0054] The difference between this embodiment and embodiment 1 lies in the structure of the connecting block 300 and the mounting plate 200, as well as the connection method between the connecting block 300 and the mounting plate 200. Here, we focus on describing the connection method between the connecting block 300 and the mounting plate 200. The structure of other parts is the same as in embodiment 1.

[0055] See appendix Figures 6 to 13 A hydrogen storage device hydrogen circuit docking device includes: a connecting block 300, a pressure reducing valve 400, a mounting plate 200, an elastic element 700, a quick-connect female connector 500, and a toggle switch 800.

[0056] See attached Figure 8 In this embodiment, the mounting plate 200 includes only the body portion 220, on which positioning holes 223 are provided. The mounting base 100 is provided with positioning posts 110. Precise installation of the mounting plate 200 and the mounting base 100 is achieved through the cooperation of the positioning posts 110 and the positioning holes 223. Four mounting posts are respectively provided at the four corners of the upper surface of the body portion 220. For ease of subsequent description, the mounting post furthest from the hydrogen storage device is defined as the first mounting post 221; the mounting post closest to the hydrogen storage device is defined as the second mounting post 222. (See Appendix) Figure 8 Appendix Figure 9The elastic element 700 includes: a screw 710 fixedly mounted on the second bending portion 320, passing sequentially through the second mounting post 222, the first bending portion 310 and the first mounting post 221, and extending to a predetermined distance outside the first mounting post 221; and a spring 720 fitted on the screw 710, with both ends abutting against the second mounting post 222 and the first bending portion 310 respectively. The screw 710 is fixedly connected to the second bend 320 and can slide relative to the second mounting post 222, the first bend 310 and the first mounting post 221. The screw 710 not only supports the spring 720, but also, in this embodiment, the sliding connection such as the slot 340 and the slide groove can be omitted in the connecting block 300 and the mounting plate 200. The screw 710 can also act as a guide rail, so that the connecting block 300 and the mounting plate 200 or the mounting seat 100 can be relatively displaced, so that the pressure reducing valve 400 and the quick-connect female connector 500 can move horizontally along the central axis of the hydrogen storage device.

[0057] Specifically, both ends of the screw 710 (there are two) have limiting members 711. One limiting member 711 is located on the side near the head of the screw 711, between the connecting block 300 and the mounting plate 200, which restricts the axial movement of the screw 710 and the hole on the connecting block 300. The other limiting member is located at the tail of the screw 710, behind the mounting plate 200, which restricts the sliding stroke of the entire connecting block 300.

[0058] In a further embodiment, the predetermined distance is greater than or equal to the sliding distance of the opening and closing sleeve 510. This prevents the screw 710 from detaching from the first mounting post 221, ensuring the structural stability of the entire device.

[0059] In a further embodiment, in order to facilitate the user to press the connecting block 300, a pressing block 900 is also provided on the upper part of the side of the connecting block 300 away from the hydrogen storage device, and a plurality of anti-slip protrusions or anti-slip grooves are provided on the outer surface of the pressing block 900.

[0060] To facilitate understanding of the technical solution of the hydrogen path docking device in this embodiment, its working principle is briefly explained: see Appendix Figure 10 During installation, pressing the connecting block 300 causes the pressure reducing valve 400 to move forward along the screw 710 until the quick-connect female connector 500 of the pressure reducing valve 400 is fixedly connected to the quick-connect male connector 620 of the hydrogen storage device. At this time, the spring 720 is in a compressed state. During disassembly, moving the upper part of the toggle switch 800 drives the opening and closing sleeve 510 to move away from the hydrogen storage device. The quick-connect female connector 500 of the pressure reducing valve 400 separates from the quick-connect male connector 620 of the hydrogen storage device. Due to the restoring force of the spring 720, the connecting block 300 and the pressure reducing valve 400 are pushed to move away from the hydrogen storage device.

[0061] It should also be noted that the various specific technical features described in the above embodiments can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, the present invention will not describe the various possible combinations separately.

Claims

1. A hydrogen gas path docking device, characterized in that, include: A mounting plate (200) is installed on the hydrogen storage device attachment and a quick-connect male connector (620) is provided on the outlet of the hydrogen storage device; the mounting plate (200) is provided with a slide rail (211); A connecting block (300) includes a first bending portion (310), and slots (340) are provided on both sides of the bottom of the first bending portion (310). The connecting block (300) is slidably installed on the mounting plate (200) through the cooperation of the slots (340) and the slide (211). A pressure reducing valve (400) is fixedly installed on the connecting block (300) and can move horizontally along the central axis of the hydrogen storage device with the connecting block (300); one end of the pressure reducing valve (400) is connected to the hydrogen consumption device through a gas pipe, and the other end is equipped with a quick-connect female connector (500). The quick-connect female connector (500) is provided with a gas passage opening and closing sliding sleeve (510) suitable for cooperating with the quick-connect male connector (620); An elastic element (700) is disposed between the mounting plate (200) and the connecting block (300); A toggle switch (800) is adapted to drive the opening and closing sleeve (510) to move away from the quick-connect male connector (620).

2. The hydrogen path docking device according to claim 1, characterized in that, The hydrogen storage device attachment is a mounting base (100) for placing and installing the hydrogen storage device.

3. The hydrogen path docking device according to claim 1, characterized in that, The end of the connecting block (300) away from the hydrogen storage device is bent downward to form a first bend (310), and the end closer to the hydrogen storage device is bent downward to form a second bend (320), so that a semi-closed receiving cavity is formed in the middle of the connecting block (300) for installing the pressure reducing valve (400).

4. The hydrogen path docking device according to claim 3, characterized in that, Both the first bend (310) and the second bend (320) have holes (330) in the middle, allowing the first interface (410) and the second interface (420) to pass through.

5. The hydrogen path docking device according to claim 3, characterized in that, The mounting plate (200) is provided with slide rails (211) on both sides, and the bottom of the first bent part (310) is provided with slots (340) on both sides. The connecting block (300) is engaged on the mounting plate (200) by the cooperation of the slots (340) and the slide rails (211).

6. The hydrogen path docking device according to claim 5, characterized in that, The elastic element (700) includes: a screw (710) disposed between the first bending portion (310) and the second bending portion (320) and passing through the mounting plate (200) or the hydrogen storage device attachment; and a spring (720) fitted on the screw (710) and abutting at both ends against the first bending portion (310) and the mounting plate (200) or the hydrogen storage device attachment, respectively.

7. The hydrogen path docking device according to claim 3, characterized in that, Four mounting posts are provided at the four corners of the upper surface of the mounting plate (200). The mounting post on the side away from the hydrogen storage device is defined as the first mounting post (221); the mounting post on the side closer to the hydrogen storage device is defined as the second mounting post (222). The elastic element (700) includes: a screw (710) fixedly mounted on the second bending portion (320), passing sequentially through the second mounting post (222), the first bending portion (310) and the first mounting post (221), and extending to a predetermined distance outside the first mounting post (221); and a spring (720) fitted on the screw (710) and abutting against the second mounting post (222) and the first bending portion (310) at both ends respectively.

8. The hydrogen path docking device according to claim 7, characterized in that, The predetermined distance is greater than or equal to the sliding distance of the opening and closing sleeve (510).

9. The hydrogen path docking device according to claim 1, characterized in that, The knob (800) is rotatably mounted on the side of the connecting block (300) at its center position, and its bottom is connected to the opening and closing sliding sleeve (510).

10. The hydrogen path docking device according to claim 1, characterized in that, A pressing block (900) is also provided on the upper part of the side of the connecting block (300) away from the hydrogen storage device.

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