Hydrogen busbar device capable of realizing partial pressure filling

Abstract

The embodiment of the invention provides a hydrogen busbar device capable of achieving partial pressure filling, and relates to the technical field of hydrogen busbars. The hydrogen busbar device capable of achieving partial pressure filling comprises a convergence main pipe, a pressure gauge and a gas transmission main valve are arranged at one end of the convergence main pipe, the convergence main pipe communicates with a plurality of gas inlet pipes, the upper ends of the gas inlet pipes are connected with convergence branch pipes, and first adjusting valves are arranged at the two ends of the convergence branch pipes correspondingly; adjusting mechanisms are arranged on the confluence branch pipes, the confluence branch pipes are movably installed on the confluence main pipe through the adjusting mechanisms, and connecting rods are arranged between the adjacent confluence branch pipes. Through the parallel design of the multiple branch pipes, staged or partial pressure gradient filling is allowed, the risk of sudden pressure change of a single gas source is avoided, the confluence branch pipes are driven by the adjusting mechanism to move up and down, the connecting height of the bottoms of the confluence branch pipes and the hydrogen cylinders can be adjusted respectively or simultaneously, and the flexibility of the device is improved.

Description

Technical Field

[0001] The present application relates to the technical field of hydrogen busbars, and in particular to a hydrogen busbar device capable of partial pressure filling. Background Art

[0002] As an important industrial gas, hydrogen is widely used in many fields such as chemical industry, electronics, metallurgy, energy, etc. In the storage and supply process of hydrogen, the hydrogen bus device plays a key role. It can centralize the hydrogen in multiple hydrogen cylinders, regulate the pressure and transport it to meet the use requirements of different equipment and processes for hydrogen.

[0003] In the prior art, the patent with announcement number CN221922455U discloses a hydrogen bus device capable of partial pressure filling, which belongs to the technical field of hydrogen bus, and comprises a main bus, one end of which is provided with a gas transmission main valve, and a pressure gauge is arranged outside the main bus, three intake valve pipes are connected to the main bus, and the ends of the intake valve pipes are connected with branch bus pipes. In the hydrogen bus device capable of partial pressure filling, gas enters the container through the filling joint, and the piston ring drives the filling joint to slide downward in the connecting cylinder. After being compressed, the hydraulic rod will shrink and provide an upward force to the piston ring, which plays a role of buffering the filling joint, and cooperates with multiple springs to pull the pressure charging joint to achieve the purpose of buffering and damping the filling joint, so that the filling joint can move slightly to weaken the impact force generated by gas discharge, prevent the filling joint and the container from being deformed due to excessive pressure, and greatly improve the safety of hydrogen filling.

[0004] In the above-mentioned prior art, the position of each branch pipe on the main pipe is fixed, and the height for connecting with the hydrogen cylinder group is also fixed. This structural design exposes obvious limitations in actual use. Since the hydrogen cylinder groups produced by different manufacturers have large differences in specifications and sizes, including the height of the hydrogen cylinders, the position of the bottle valves and the overall layout of the bottle groups, the existing hydrogen bus is difficult to adapt well to these hydrogen cylinder groups of various specifications due to the fixed position and connection height of each branch pipe. When it is necessary to connect hydrogen cylinder groups of different specifications, the branch pipes and the hydrogen cylinder valves may not be accurately connected, resulting in difficulty in connection or even inability to complete the connection, which greatly limits the versatility and applicability of the hydrogen bus device. Summary of the invention

[0005] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes a hydrogen busbar device capable of partial pressure filling, which can flexibly adjust the position of the connection between the busbar and the hydrogen cylinder group, improve the versatility, applicability and adjustment efficiency of the device, and effectively solve the problem in the prior art that the position of the busbar cannot be adjusted and is difficult to meet the use requirements.

[0006] This application is implemented as follows: The present application provides a hydrogen busbar device that can be filled under partial pressure, comprising: a main busbar, one end of which is provided with a pressure gauge and a main gas transmission valve, a plurality of intake pipes are connected to the main busbar, the upper ends of the intake pipes are connected to branch busbars, both ends of the branch busbars are provided with first regulating valves, the branch busbars are provided with regulating mechanisms, the branch busbars are movably mounted on the main busbar through the regulating mechanisms, and connecting rods are provided between adjacent branch busbars.

[0007] According to the hydrogen bus device that can be filled under partial pressure in the embodiment of the present application, a second regulating valve is provided on the air inlet pipe, a connecting block is fixedly connected to one side of the branch pipe, the connecting block is slidably sleeved on the limit rod, the bottom of the limit rod is fixedly installed on the mounting frame, the mounting frame is fixedly connected to the main bus pipe, and one end of the connecting rod is fixedly connected to the connecting block.

[0008] According to the hydrogen bus device that can be filled under partial pressure in the embodiment of the present application, the regulating mechanism includes a first drive component and a second drive component, the first drive component is arranged on the bus branch located at the front end, and the second drive component is arranged on the bus branch at the remaining part, and a first rack and a connecting component are respectively arranged on one side of the first drive component and the second drive component, and fixed frames are arranged on both sides of the connecting component.

[0009] According to the hydrogen bus device that can be filled under partial pressure in the embodiment of the present application, the first driving component includes a first mounting seat, the first mounting seat is fixedly mounted on the bus branch pipe located at the front end, the first mounting seat is rotatably connected to a first gear, and one end of the first gear is fixedly connected to a first hand wheel.

[0010] According to the hydrogen bus device capable of partial pressure filling according to the embodiment of the present application, the first rack is fixedly mounted on the bus main pipe, and the first rack is meshingly connected with the first gear.

[0011] According to the hydrogen bus device that can be filled under partial pressure in the embodiment of the present application, the second drive assembly includes a second mounting seat, the second mounting seat is fixedly mounted on the rear bus branch pipe, the second mounting seat is rotatably connected to a second gear, and one end of the second gear is fixedly connected to a second hand wheel.

[0012] According to the hydrogen bus device that can be filled under partial pressure in the embodiment of the present application, the connecting assembly includes a support frame, the support frame is fixedly installed on the bus main pipe, a second rack is slidably connected inside the support frame, guide blocks are fixedly connected to the upper and lower ends of the support frame, and guide grooves are provided at the upper and lower ends of the second rack, and the guide grooves are slidably connected to the guide blocks.

[0013] According to the hydrogen bus device that can be filled under partial pressure according to the embodiment of the present application, the second rack is meshed and connected with the second gear, and a guide rod is fixedly connected to the side of the second rack away from the second gear, and the guide rod slides through the support frame, and a pressure spring is installed on the guide rod, and one end of the pressure spring is fixedly connected to the support frame.

[0014] According to the hydrogen bus device that can be filled by partial pressure according to the embodiment of the present application, sliding rods are fixedly connected on both sides of the second rack, a lifting rod is slidably connected to the sliding rod, an insertion block is fixedly connected to one end of the lifting rod, and both ends of the bus branch pipe are fixedly connected to a fixing frame, a plurality of sockets are provided on the fixing frame, and the plug blocks are inserted into the sockets corresponding to their positions.

[0015] According to the hydrogen bus device capable of partial pressure filling according to the embodiment of the present application, a screw is rotatably mounted on the lifting rod, and one end of the screw is threadedly connected to the connecting rod.

[0016] Beneficial effects of the present invention: 1. The present invention allows for staged or pressure gradient filling through a multi-branch parallel design, avoiding the risk of sudden pressure changes in a single gas source. Through the linkage of the adjustment mechanism and the connecting rod, it can quickly adapt to gas cylinder groups of different specifications, improve the flexibility of the device, and the combination of the pressure gauge and the main gas transmission valve realizes real-time monitoring and emergency shut-off, reducing the risk of high-pressure hydrogen leakage.

[0017] 2. The present invention drives the branch pipes to move up and down through the adjustment mechanism to adjust the connection height between the bottom of each branch pipe and each hydrogen cylinder. When the heights are different and need to be adjusted separately, the screw rod is rotated to make the lifting rod gradually move away from the connecting rod, so that the second rack is meshed with the second gear, and the plug block is disengaged from the connection with the socket, and the first hand wheel and the second hand wheel are respectively rotated to drive the corresponding connected branch pipes to move synchronously, so as to achieve the separate adjustment of the height of each branch pipe. When the heights of the hydrogen cylinder groups are connected at the same height, it is necessary to adjust each branch pipe to a uniform height, then the screw rod is rotated in the opposite direction, so that the lifting rod drives the second rack to gradually approach the connecting rod, the second rack is disengaged from the meshing with the second gear, the plug block is plugged into the corresponding socket, the first hand wheel is rotated to drive the first gear to rotate, and the front branch pipe is driven to move upward or downward, thereby driving the connecting rod to move synchronously, and the connecting rod drives the lifting rod, the fixing frame and the rear branch pipe to rise and fall synchronously, so as to achieve the synchronous adjustment of the connection heights of multiple branch pipes, and improve the adjustment efficiency and the flexibility of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments of the present application. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 This is a schematic diagram of a three-dimensional assembly of the overall structure according to an embodiment of the present application; Figure 2 This is the second schematic diagram of the three-dimensional assembly of the overall structure according to the embodiment of the present application; Figure 3 This is a partial three-dimensional schematic diagram of a branch pipe according to an embodiment of the present application; Figure 4 is a second three-dimensional schematic diagram of a branch pipe according to an embodiment of the present application; Figure 5 This is a partial three-dimensional schematic diagram of a connection component according to an embodiment of the present application; Figure 6 is a second partial three-dimensional schematic diagram of a connection component according to an embodiment of the present application; Figure 7 is a partial three-dimensional schematic diagram of a second drive assembly according to an embodiment of the present application; Figure 8 This is a partial three-dimensional schematic diagram of a connection assembly according to an embodiment of the present application; Fig. 9 This is the second partial stereoscopic schematic diagram of the connection component according to the embodiment of the present application.

[0020] In the figure: 1. confluence main pipe; 2. regulating mechanism; 21. first drive assembly; 211. first mounting seat; 212. first hand wheel; 213. first gear; 22. connecting assembly; 221. support frame; 222. second rack; 2221. guide groove; 223. slide bar; 224. guide rod; 225. pressure spring; 226. lifting rod; 227. plug block; 228. screw rod; 229. guide block; 23. first rack; 24. second drive assembly; 241. second mounting seat; 242. second hand wheel; 243. second gear; 25. fixing frame; 251. socket; 3. connecting rod; 4. confluence branch pipe; 41. first regulating valve; 42. air inlet pipe; 43. second regulating valve; 44. limit rod; 45. connecting block; 46. mounting frame; 5. pressure gauge; 6. main gas supply valve. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application.

[0022] In order to make the purpose, technical solutions and advantages of the implementation methods of this application clearer, the technical solutions in the implementation methods of this application will be clearly and completely described below in conjunction with the drawings in the implementation methods of this application. Obviously, the described implementation methods are part of the implementation methods of this application, not all of the implementation methods. Based on the implementation methods in this application, all other implementation methods obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0023] like Figure 1-Figure 9 As shown, according to an embodiment of the present application, a hydrogen busbar device that can be filled by partial pressure includes a main busbar 1, a pressure gauge 5 and a gas transmission main valve 6 are arranged at one end of the main busbar 1, a plurality of air inlet pipes 42 are connected to the main busbar 1, the upper ends of the air inlet pipes 42 are connected to branch busbars 4, both ends of the branch busbars 4 are provided with first regulating valves 41, regulating mechanisms 2 are arranged on the branch busbars 4, the branch busbars 4 are movably mounted on the main busbar 1 through the regulating mechanisms 2, and connecting rods 3 are arranged between adjacent branch busbars 4.

[0024] In the present application, the main confluence pipe 1 is connected to the external gas supply system through the main gas valve 6, the pressure gauge 5 monitors the main pipe pressure in real time, and multiple branch confluence pipes 4 are connected in parallel to the main confluence pipe 1 through the air inlet pipe 42, and the opening and closing of each branch confluence pipe 4 are independently controlled by the first regulating valve 41 to realize the pressure-dividing filling function of multiple branches, and the regulating mechanism 2 drives the branch confluence pipes 4 to move up and down to adjust the connection height between the bottom of each branch confluence pipe 4 and each hydrogen cylinder.

[0025] The multi-branch parallel design allows for filling in stages or with pressure gradients, avoiding the risk of sudden pressure changes in a single gas source. Through the linkage of the adjustment mechanism 2 and the connecting rod 3, gas cylinder groups of different specifications can be quickly adapted to improve the flexibility of the device. The combination of the pressure gauge 5 and the main gas transmission valve 6 realizes real-time monitoring and emergency shut-off, reducing the risk of high-pressure hydrogen leakage.

[0026] A second regulating valve 43 is provided on the air intake pipe 42, and a connecting block 45 is fixedly connected to one side of the branch pipe 4. The connecting block 45 is slidably sleeved on the limit rod 44. The bottom of the limit rod 44 is fixedly installed on the mounting frame 46. The mounting frame 46 is fixedly connected to the main pipe 1, and one end of the connecting rod 3 is fixedly connected to the connecting block 45.

[0027] In the present application, the intake pipe 42 is a hose, the second regulating valve 43 controls the hydrogen flow of the intake pipe 42, the limit rod 44 slides with the connecting block 45 to constrain the movement trajectory of the branch pipe 4, the mounting frame 46 fixes the position of the limit rod 44, and the connecting rod 3 transmits the displacement through the connecting block 45 to ensure the stability of the multiple branches when moving in coordination.

[0028] The adjusting mechanism 2 includes a first driving component 21 and a second driving component 24. The first driving component 21 is arranged on the busbar 4 located at the front end, and the second driving component 24 is arranged on the busbar 4 at the remaining parts. A first rack 23 and a connecting component 22 are respectively arranged on one side of the first driving component 21 and the second driving component 24, and a fixing frame 25 is arranged on both sides of the connecting component 22.

[0029] The first driving assembly 21 includes a first mounting seat 211, which is fixedly mounted on the branch pipe 4 located at the front end. The first mounting seat 211 is rotatably connected to the first gear 213, and one end of the first gear 213 is fixedly connected to the first hand wheel 212. The first rack 23 is fixedly mounted on the main pipe 1, and the first rack 23 is meshingly connected to the first gear 213.

[0030] The second driving assembly 24 includes a second mounting seat 241 , which is fixedly mounted on the rear confluence branch pipe 4 , and a second gear 243 is rotatably connected to the second mounting seat 241 , and one end of the second gear 243 is fixedly connected to a second hand wheel 242 .

[0031] In the present application, the first drive assembly 21 drives the first gear 213 to engage with the first rack 23 through the first hand wheel 212, driving the front end branch pipe 4 to move upward or downward, and the second drive assembly 24 drives the second gear 243 through the second hand wheel 242 to control the displacement of the rear branch pipe 4.

[0032] Specifically, the end close to the pressure gauge 5 and the main gas valve 6 is the front end. Except for the branch pipe 4 at the front end, the rest are called rear branch pipes 4. Each rear branch pipe 4 is provided with a second drive component 24 and a connecting component 22. Each branch pipe 4 can be adjusted in height individually, and can also be adjusted synchronously through the connection and cooperation of the connecting component 22. The design purpose is to improve the flexibility and adjustment efficiency of the installation of the hydrogen cylinder group.

[0033] The connecting assembly 22 includes a support frame 221, which is fixedly mounted on the confluence main pipe 1, and a second rack 222 is slidably connected in the support frame 221. The upper and lower ends of the support frame 221 are fixedly connected to guide blocks 229, and the upper and lower ends of the second rack 222 are provided with guide grooves 2221, and the guide grooves 2221 are slidably connected to the guide blocks 229. The second rack 222 is meshed and connected with the second gear 243, and a guide rod 224 is fixedly connected to the side of the second rack 222 away from the second gear 243, and the guide rod 224 slides through the support frame 221. The guide rod A pressure spring 225 is installed on 224, one end of the pressure spring 225 is fixedly connected to the support frame 221, sliding rods 223 are fixedly connected on both sides of the second rack 222, a lifting rod 226 is slidably connected to the sliding rod 223, one end of the lifting rod 226 is fixedly connected to an insert block 227, both ends of the branch pipe 4 are fixedly connected to a fixed frame 25, a plurality of sockets 251 are provided on the fixed frame 25, the insert block 227 is inserted into the socket 251 corresponding to its position, a screw rod 228 is rotatably installed on the lifting rod 226, one end of the screw rod 228 is threadedly connected to the connecting rod 3.

[0034] In the present application, the height of each branch pipe 4 is adjusted according to the required connection height. When the heights are different and need to be adjusted separately, the screw 228 is rotated to make the lifting rod 226 gradually move away from the connecting rod 3, so that the second rack 222 is meshed with the second gear 243. During this process, the plug block 227 is disconnected from the socket 251. If the lifting rod 226 moves up and down following the connecting rod 3, the position of the fixing frame 25 remains unchanged to avoid being affected by the adjustment of the adjacent branch pipe 4. In this state, the second hand wheel 242 is rotated to drive the second gear 243 to rotate. Through the meshing connection between the second gear 243 and the second rack 222, the second gear 243 moves upward or downward along the second rack 222, thereby driving the branch pipes 4 connected thereto to move synchronously, thereby realizing the separate adjustment of the height of each branch pipe 4.

[0035] When the heights of the hydrogen cylinder groups are connected at the same time, it is necessary to adjust each branch pipe 4 to a uniform height, and the screw rod 228 is rotated in the opposite direction, so that the lifting rod 226 drives the second rack 222 to gradually approach the connecting rod 3, and the second rack 222 is disengaged from the second gear 243, and the pressure spring 225 is stretched by the force, and the plug block 227 is inserted into the corresponding socket 251. At this time, the first gear 213 is driven to rotate by rotating the first hand wheel 212. The first gear 213 drives the front branch pipe 4 to move upward or downward through the meshing connection with the first rack 23, thereby driving the connecting rod 3 to move synchronously, and the connecting rod 3 drives the lifting rod 226 to move synchronously. Since the plug block 227 is inserted into the socket 251, the lifting rod 226 drives the fixing frame 25 and the rear branch pipe 4 to rise and fall synchronously, thereby realizing the synchronous adjustment of the connection heights of multiple branch pipes 4, thereby improving the adjustment efficiency and the flexibility of the device.

[0036] In summary, the working principle of a hydrogen bus device capable of partial pressure filling according to an embodiment of the present invention is as follows: The main confluence pipe 1 is connected to the external gas supply system through the main gas valve 6, and the pressure gauge 5 monitors the main pipe pressure in real time. Multiple branch confluence pipes 4 are connected in parallel to the main confluence pipe 1 through the air inlet pipe 42, and the opening and closing of each branch confluence pipe 4 are independently controlled by the first regulating valve 41 to realize the pressure-dividing filling function of multiple branches. The regulating mechanism 2 drives the branch confluence pipes 4 to move up and down, and adjusts the connection height between the bottom of each branch confluence pipe 4 and each hydrogen cylinder. When the height is different and needs to be adjusted separately, the screw 228 is rotated to make the lifting rod 226 gradually move away from the connecting rod 3, so that the second rack 222 is meshed with the second gear 243, and the plug block 227 is disconnected from the socket 251, and the first hand wheel 212 and the second hand wheel 242 are rotated respectively to drive the first gear 213 and the second gear 243 to rotate, and the meshing connection between the first gear 213 and the first rack 23 and the meshing connection between the second gear 243 and the second rack 222 drive the correspondingly connected branch confluence pipes 4 to move synchronously. To achieve individual adjustment of the height of each branch pipe 4, when the heights of the hydrogen cylinder groups are connected are the same, it is necessary to adjust each branch pipe 4 to a uniform height, then the screw rod 228 is rotated in the opposite direction, so that the lifting rod 226 drives the second rack 222 to gradually approach the connecting rod 3, the second rack 222 is disengaged from the second gear 243, the pressure spring 225 is stretched by the force, the plug block 227 is plugged into the corresponding socket 251, the first hand wheel 212 is rotated to drive the first gear 213 to rotate, the first gear 213 is connected to the meshing connection with the first rack 23, drives the front branch pipe 4 to move upward or downward, thereby driving the connecting rod 3 to move synchronously, and the connecting rod 3 drives the lifting rod 226 to move synchronously, and because the plug block 227 is plugged into the socket 251, the lifting rod 226 drives the fixing frame 25 and the rear branch pipe 4 to rise and fall synchronously, thereby achieving synchronous adjustment of the connection heights of multiple branch pipes 4, thereby improving the adjustment efficiency and the flexibility of the device.

[0037] The electronic components and models used in the present invention can be determined according to actual needs.

[0038] The above description is only an embodiment of the present application and is not intended to limit the scope of protection of the present application. For those skilled in the art, the present application may have various changes and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the scope of protection of the present application. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0039] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A hydrogen bus device capable of partial pressure filling, characterized in that: The invention comprises a main confluence pipe (1), one end of which is provided with a pressure gauge (5) and a main gas transmission valve (6), the main confluence pipe (1) is connected to a plurality of air inlet pipes (42), the upper ends of the air inlet pipes (42) are connected to branch confluence pipes (4), both ends of the branch confluence pipes (4) are provided with first regulating valves (41), the branch confluence pipes (4) are provided with regulating mechanisms (2), the branch confluence pipes (4) are movably mounted on the main confluence pipe (1) through the regulating mechanisms (2), and connecting rods (3) are provided between adjacent branch confluence pipes (4).

2. The hydrogen busbar device capable of partial pressure filling according to claim 1, characterized in that: The air intake pipe (42) is provided with a second regulating valve (43); a connecting block (45) is fixedly connected to one side of the branch pipe (4); the connecting block (45) is slidably sleeved on a limit rod (44); the bottom of the limit rod (44) is fixedly mounted on a mounting frame (46); the mounting frame (46) is fixedly connected to the main pipe (1); and one end of the connecting rod (3) is fixedly connected to the connecting block (45).

3. The hydrogen busbar device capable of partial pressure filling according to claim 1, characterized in that: The regulating mechanism (2) comprises a first drive assembly (21) and a second drive assembly (24); the first drive assembly (21) is arranged on a confluence branch pipe (4) at a front end portion, and the second drive assembly (24) is arranged on a confluence branch pipe (4) at a remaining portion; a first rack (23) and a connecting assembly (22) are respectively arranged on one side of the first drive assembly (21) and the second drive assembly (24); and fixing frames (25) are arranged on both sides of the connecting assembly (22).

4. The hydrogen busbar device capable of partial pressure filling according to claim 3, characterized in that: The first driving assembly (21) comprises a first mounting seat (211), the first mounting seat (211) being fixedly mounted on the confluence branch pipe (4) at the front end, a first gear (213) being rotatably connected to the first mounting seat (211), and a first hand wheel (212) being fixedly connected to one end of the first gear (213).

5. The hydrogen busbar device capable of partial pressure filling according to claim 4, characterized in that: The first rack (23) is fixedly mounted on the confluence main pipe (1), and the first rack (23) is meshingly connected with the first gear (213).

6. The hydrogen busbar device capable of partial pressure filling according to claim 3, characterized in that: The second driving assembly (24) comprises a second mounting seat (241), the second mounting seat (241) being fixedly mounted on the rear confluence branch pipe (4), a second gear (243) being rotatably connected to the second mounting seat (241), and a second hand wheel (242) being fixedly connected to one end of the second gear (243).

7. The hydrogen busbar device capable of partial pressure filling according to claim 6, characterized in that: The connecting assembly (22) comprises a support frame (221), the support frame (221) being fixedly mounted on the converging main pipe (1), a second rack (222) being slidably connected inside the support frame (221), a guide block (229) being fixedly connected at both upper and lower ends of the support frame (221), a guide groove (2221) being provided at both upper and lower ends of the second rack (222), and the guide groove (2221) being slidably connected to the guide block (229).

8. The hydrogen busbar device capable of partial pressure filling according to claim 7, characterized in that: The second rack (222) is meshedly connected with the second gear (243); a guide rod (224) is fixedly connected to the side of the second rack (222) away from the second gear (243); the guide rod (224) slides through the support frame (221); a pressure spring (225) is installed on the guide rod (224); one end of the pressure spring (225) is fixedly connected to the support frame (221).

9. The hydrogen busbar device capable of partial pressure filling according to claim 8, characterized in that: Both sides of the second rack (222) are fixedly connected to a sliding rod (223), a lifting rod (226) is slidably connected to the sliding rod (223), one end of the lifting rod (226) is fixedly connected to an insert block (227), both ends of the branch pipe (4) are fixedly connected to a fixing frame (25), a plurality of insert holes (251) are provided on the fixing frame (25), and the insert block (227) is inserted into the insert hole (251) corresponding to its position.

10. The hydrogen busbar device capable of partial pressure filling according to claim 9, characterized in that: A screw rod (228) is rotatably mounted on the lifting rod (226), and one end of the screw rod (228) is threadedly connected to the connecting rod (3).

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