Practical training device for hydrogen leakage detection of hydrogen energy vehicle

Abstract

The invention discloses a hydrogen energy vehicle hydrogen leakage detection practical training device, and relates to the field of hydrogen energy vehicle detection, and the device comprises a mounting rack, a mounting plate is slidably connected in the mounting rack, the mounting plate is rotatably connected with a mounting pipe, and the top of the mounting pipe is fixedly connected with a placement plate. According to the hydrogen leakage detection practical training device for the hydrogen energy vehicle, in the hydrogen leakage detection practical training process of a practical training person, multi-angle adjustment is carried out by driving the camera, so that the practicability of the practical training person is improved, and the practicability of the practical training person is improved. According to the practical training device, the camera can record the operation of the practical training personnel at multiple angles in the practical training process of the practical training personnel, so that the recording effect of the operation of the practical training personnel is further improved, the subsequent redisk analysis of the operation process is facilitated, and the teaching effect of the practical training device in the practical training teaching process is further improved.

Description

Technical Field

[0001] The present invention relates to hydrogen vehicle detection technology, and in particular to a hydrogen leakage detection training device for hydrogen vehicles. Background Art

[0002] As the name suggests, hydrogen vehicles are powered by hydrogen, converting the chemical energy generated by hydrogen reactions into mechanical energy to propel the vehicle. There are two types of hydrogen vehicles: the internal combustion engine vehicle, which uses an internal combustion engine to burn hydrogen (usually obtained by decomposing methane or electrolyzing water) to generate power. The other type is the hydrogen fuel cell vehicle, which uses hydrogen or hydrogen-containing substances to react with oxygen in the air in a fuel cell to generate electricity that drives an electric motor, which in turn propels the vehicle. Hydrogen fuel is widely used as a transportation energy source, and high-speed vehicles, buses, submarines, and rockets already use hydrogen energy in various forms. Using hydrogen energy can effectively address the air pollution problems caused by traditional gasoline vehicles, as hydrogen reacts with oxygen in the air to produce only water vapor.

[0003] In the existing technology, in the detection and maintenance of hydrogen batteries for hydrogen-powered vehicles, the detection operation of hydrogen leakage is cumbersome. Therefore, multiple training operations are required to achieve better detection and maintenance. The current training device only places the hydrogen power system of the hydrogen vehicle on a training stand, and then the trainees conduct training. During the training process, the height and angle of the hydrogen power system cannot be adjusted, which makes it inconvenient for the trainees to operate during the training process, resulting in poor training teaching results. At the same time, during the training process, the trainees' operations cannot be fully recorded, and the actions after the operation cannot be reviewed and analyzed, resulting in poor learning results for the trainees during the training learning process. Summary of the Invention

[0004] The purpose of the present invention is to provide a hydrogen leakage detection training device for hydrogen-powered vehicles to solve the above-mentioned deficiencies in the prior art.

[0005] In order to achieve the above objectives, the present invention provides the following technical solutions: a hydrogen leak detection training device for hydrogen-powered vehicles, comprising:

[0006] A mounting frame, wherein a mounting plate is slidably connected to the mounting frame, a mounting tube is rotatably connected to the mounting plate, a placement plate is fixedly connected to the top of the mounting tube, and a lifting mechanism connected to the mounting frame is transmission-connected to the mounting plate, and the lifting mechanism is used to drive the mounting plate to move up and down;

[0007] The outer surface of the mounting tube is connected to a driving mechanism, and the driving mechanism is used to drive the mounting tube to rotate;

[0008] An image recording mechanism connected to the mounting plate is fixedly connected to the mounting tube, and the image recording mechanism is used to record the operations during the teaching practice in real time.

[0009] Furthermore, the image recording mechanism includes a connecting frame fixedly connected to the mounting tube, a first transmission tube rotatably connected to the connecting frame, an outer surface of the first transmission tube fixedly connected to a connecting frame, one side of the connecting frame fixedly connected to an adjusting motor, an output end of the adjusting motor fixedly connected to a movable threaded rod rotatably connected to the connecting frame through a coupling, an outer surface of the movable threaded rod threadedly fitted with a slider slidably connected to the connecting frame, a second transmission tube rotatably connected to the slider, a mounting ring fixedly connected to the bottom end of the second transmission tube, an adjusting ring slidably connected to the mounting ring, an inner surface of the adjusting ring fixedly connected to a camera via a connecting column, an air suction mechanism respectively connected to the mounting plate and the mounting tube is provided on the mounting ring, and the air suction mechanism is used to remove hydrogen generated during the training process;

[0010] The outer surface of the first transmission tube is connected to a first transmission mechanism connected to the connecting frame, and the first transmission mechanism is used to drive the first transmission tube to rotate. The outer surface of the second transmission tube is connected to a second transmission mechanism connected to the slider, and the second transmission mechanism is used to drive the second transmission tube to rotate. The outer surface of the adjustment ring is connected to a third transmission mechanism connected to the adjustment ring, and the third transmission mechanism is used to drive the adjustment ring to rotate.

[0011] Furthermore, the air suction mechanism includes a suction fan fixedly connected to the mounting plate, the input end of the suction fan is fixedly connected to a first connecting tube connected to the mounting tube, the outer surface of the mounting tube is fixedly connected to a second connecting tube rotatably connected to the first transmission tube, the outer surface of the first transmission tube is fixedly connected to a hose, one end of the hose is fixedly connected to a third connecting tube rotatably connected to the second transmission tube, the outer surface of the second transmission tube is fixedly connected to an suction ring tube fixedly connected to the mounting ring through a pipeline, and the outer surface of the suction ring tube is fixedly connected to an suction hood.

[0012] Furthermore, the first transmission mechanism includes a first transmission motor fixedly connected to the connecting frame, the output end of the first transmission motor is fixedly connected to the first transmission shaft through a coupling, the outer surface of the first transmission shaft is fixedly sleeved with a first gear, and the outer surface of the first gear is meshedly connected with a second gear fixedly sleeved with the first transmission tube.

[0013] Furthermore, the second transmission mechanism includes a second transmission motor fixedly connected to the slider, the output end of the second transmission motor is fixedly connected to the second transmission shaft through a coupling, the outer surface of the second transmission shaft is fixedly sleeved with a third gear, and the outer surface of the third gear is meshedly connected with a fourth gear fixedly sleeved with the second transmission tube.

[0014] Furthermore, the third transmission mechanism includes a third transmission motor fixedly connected to the adjustment ring, the output end of the third transmission motor is fixedly connected to the third transmission shaft through a coupling, the outer surface of the third transmission shaft is fixedly sleeved with a fifth gear, and the outer surface of the fifth gear is meshedly connected with a transmission gear ring fixedly connected to the adjustment ring.

[0015] Furthermore, the driving mechanism includes a driving motor fixedly connected to the mounting plate, the output end of the driving motor is fixedly connected to the driving shaft through a coupling, the outer surface of the driving shaft is fixedly sleeved with a first driving gear, and the outer surface of the first driving gear is meshedly connected with a second driving gear fixedly sleeved with the mounting tube.

[0016] Furthermore, the lifting mechanism includes a fourth transmission motor fixedly connected to the mounting frame, the output end of the fourth transmission motor is fixedly connected to the fourth transmission shaft through a coupling, and the mounting frame is rotatably connected to a lifting threaded rod threadedly connected to the mounting plate, and the lifting threaded rod and the fourth transmission shaft are connected through a transmission gear and a gear belt.

[0017] Compared with the prior art, the hydrogen leakage detection training device for hydrogen-powered vehicles provided by the present invention has the following beneficial effects:

[0018] (1) By fixing the hydrogen power system structure of the hydrogen vehicle on a placement plate, during the practical training, the placement plate and the hydrogen power system structure are driven up and down by the lifting mechanism, and the placement plate is driven to rotate at the same time, so that some structures of the hydrogen power system structure on the placement plate can be rotated to a position that is easy for trainees to operate, thereby achieving the height adjustment and horizontal angle adjustment of the hydrogen power system structure during the practical training, which is convenient for trainees to perform better practical training operations.

[0019] (2) During the training of hydrogen leak detection, the trainees can adjust the camera at multiple angles by driving it, so that the camera can record the trainees' operations at multiple angles during the training, which further improves the recording effect of the trainees' operations, facilitates the subsequent review and analysis of the operation process, and further improves the teaching effect of the training device during the training. At the same time, during the recording of the training, the suction mechanism is started, and the hydrogen leaked during the leakage detection training is sucked in through the suction ring tube and the suction hood on the suction mechanism, and then discharged to a safe place, so that the hydrogen generated during the training process can be discharged in time, and the danger of combustion caused by excessive accumulation of hydrogen can be prevented, which further improves the safety of the training process. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments described in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0021] Figure 1 This is a first stereoscopic diagram of the external structure of the present invention;

[0022] Figure 2 This is a second stereoscopic view of the external structure of the present invention;

[0023] Figure 3 This is a third perspective view of the external structure of the present invention;

[0024] Figure 4 This is a front view of the internal structure of the mounting ring of the present invention;

[0025] Figure 5 For the present invention Figure 1 A magnified view of center.

[0026] Description of reference numerals:

[0027] 1. Mounting frame; 2. Mounting plate; 3. Mounting tube; 4. Placement plate; 11. Connecting frame; 12. First transmission tube; 13. Connecting frame; 14. Adjusting motor; 15. Moving threaded rod; 16. Slider; 17. Second transmission tube; 18. Mounting ring; 19. Adjusting ring; 190. Camera; 21. Suction fan; 22. First connecting tube; 23. Second connecting tube; 24. Hose; 25. Third connecting tube; 26. Suction ring tube; 27. Suction hood; 31. First transmission tube Drive motor; 32, first transmission shaft; 33, first gear; 34, second gear; 41, second transmission motor; 42, second transmission shaft; 43, third gear; 44, fourth gear; 51, third transmission motor; 52, third transmission shaft; 53, fifth gear; 54, transmission ring gear; 61, drive motor; 62, drive shaft; 63, first drive gear; 64, second drive gear; 71, fourth transmission motor; 72, fourth transmission shaft; 73, lifting threaded rod. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0029] Example 1

[0030] See also Figures 1 to 5 As shown, a hydrogen leakage detection training device for hydrogen vehicles includes:

[0031] A mounting frame 1 is provided with a mounting plate 2 which is slidably connected to the mounting frame 1, a mounting tube 3 is rotatably connected to the mounting plate 2, a placement plate 4 is fixedly connected to the top of the mounting tube 3, and a lifting mechanism connected to the mounting frame 1 is transmission-connected to the mounting plate 2, and the lifting mechanism is used to drive the mounting plate 2 to move up and down;

[0032] The outer surface of the mounting tube 3 is connected to a driving mechanism, which is used to drive the mounting tube 3 to rotate;

[0033] An image recording mechanism connected to the mounting plate 2 is fixedly connected to the mounting tube 3 , and the image recording mechanism is used to record the operations during the teaching practice in real time.

[0034] The driving mechanism includes a driving motor 61 fixedly connected to the mounting plate 2. The driving motor 61 is controlled by a PLC programming program, and can control the driving motor 61 to rotate forward and reverse and rotate at an angle. The output end of the driving motor 61 is fixedly connected to a driving shaft 62 through a coupling. The outer surface of the driving shaft 62 is fixedly sleeved with a first driving gear 63. The outer surface of the first driving gear 63 is meshedly connected with a second driving gear 64 fixedly sleeved with the mounting tube 3. The driving motor 61 drives the driving shaft 62 to rotate, and the driving shaft 62 drives the mounting tube 3 to rotate through the first driving gear 63 and the second driving gear 64.

[0035] The lifting mechanism includes a fourth transmission motor 71 fixedly connected to the mounting frame 1. The fourth transmission motor 71 is controlled by a PLC programming program, and can control the fourth transmission motor 71 to rotate forward and reverse and rotate at an angle. The output end of the fourth transmission motor 71 is fixedly connected to the fourth transmission shaft 72 through a coupling. The mounting frame 1 is rotatably connected to a lifting threaded rod 73 threadedly connected to the mounting plate 2. The lifting threaded rod 73 and the fourth transmission shaft 72 are connected through a transmission gear and a gear belt. The fourth transmission shaft 72 is driven to rotate by the fourth transmission motor 71. The fourth transmission shaft 72 drives the lifting threaded rod 73 to rotate through the transmission gear and the gear belt. The lifting threaded rod 73 drives the placement plate to move up and down.

[0036] By fixing the hydrogen power system structure of the hydrogen vehicle on the placement plate 4, during the practical training and teaching process, the lifting mechanism drives the mounting plate 2 to move up and down, and the mounting plate 2 drives the placement plate 4 to move up and down through the mounting tube 3, thereby realizing the adjustment of the height of the hydrogen power system, which is convenient for the trainees to operate when performing hydrogen detection on the hydrogen energy system structure. At the same time, the driving mechanism can drive the mounting tube 3 to rotate, the mounting tube 3 drives the placement plate 4 to rotate, and the placement plate 4 drives the hydrogen power system structure to rotate, so that some structures of the hydrogen power system structure on the placement plate 4 can be rotated to a position that is easy for the trainees to operate, thereby realizing that during the practical training process, the hydrogen power system structure can be adjusted in height and horizontal angle, which is convenient for the trainees to perform better practical training operations. At the same time, during the practical training process, the image recording mechanism is used to record the trainees' operations from multiple angles and directions, which is convenient for subsequent review and analysis of misoperations that occur during the operation process, further improving the role of the training device in the practical training and teaching process.

[0037] Example 2

[0038] Based on Example 1, please refer to Figure 1 、 Figure 4 and Figure 5As shown, the image recording mechanism includes a connecting frame 11 fixedly connected to the mounting tube 3, a first transmission tube 12 is rotatably connected to the connecting frame 11, an outer surface of the first transmission tube 12 is fixedly connected to a connecting frame 13, and one side of the connecting frame 13 is fixedly connected to an adjusting motor 14, the adjusting motor 14 is controlled by a PLC programming program, and can control the adjusting motor 14 to rotate forward and backward and rotate at an angle, the output end of the adjusting motor 14 is fixedly connected to a movable threaded rod 15 rotatably connected to the connecting frame 13 through a coupling, the outer surface of the movable threaded rod 15 is threadedly fitted with a slider 16 slidably connected to the connecting frame 13, a second transmission tube 17 is rotatably connected to the slider 16, the bottom end of the second transmission tube 17 is fixedly connected to a mounting ring 18, an adjusting ring 19 is slidably connected to the mounting ring 18, and a camera 190 is fixedly connected to the inner surface of the adjusting ring 19 through a connecting column, and an air suction mechanism connected to the mounting plate 2 and the mounting tube 3 is provided on the mounting ring 18, respectively, and the air suction mechanism is used to remove hydrogen generated during the training process;

[0039] The outer surface of the first transmission tube 12 is connected to a first transmission mechanism connected to the connecting frame 11, and the first transmission mechanism is used to drive the first transmission tube 12 to rotate. The outer surface of the second transmission tube 17 is connected to a second transmission mechanism connected to the slider 16, and the second transmission mechanism is used to drive the second transmission tube 17 to rotate. The outer surface of the adjustment ring 19 is connected to a third transmission mechanism connected to the adjustment ring 19, and the third transmission mechanism is used to drive the adjustment ring 19 to rotate.

[0040] The first transmission mechanism includes a first transmission motor 31 fixedly connected to the connecting frame 11. The first transmission motor 31 is controlled by a PLC programming program, and can control the first transmission motor 31 to rotate forward and reverse and rotate at an angle. The output end of the first transmission motor 31 is fixedly connected to the first transmission shaft 32 through a coupling. The outer surface of the first transmission shaft 32 is fixedly sleeved with a first gear 33. The outer surface of the first gear 33 is meshedly connected with a second gear 34 fixedly sleeved with the first transmission tube 12. The first transmission shaft 32 is driven to rotate by the first transmission motor 31, and the first transmission shaft 32 drives the first transmission tube 12 to rotate through the first gear 33 and the second gear 34.

[0041] The second transmission mechanism includes a second transmission motor 41 fixedly connected to the slider 16. The second transmission motor 41 is controlled by a PLC programming program, and can control the second transmission motor 41 to rotate forward and reverse and rotate at an angle. The output end of the second transmission motor 41 is fixedly connected to the second transmission shaft 42 through a coupling. The outer surface of the second transmission shaft 42 is fixedly sleeved with a third gear 43. The outer surface of the third gear 43 is meshedly connected with a fourth gear 44 fixedly sleeved with the second transmission tube 17. The second transmission shaft 42 is driven to rotate by the second transmission motor 41, and the second transmission shaft 42 drives the second transmission tube 17 to rotate through the third gear 43 and the fourth gear 44.

[0042] The third transmission mechanism includes a third transmission motor 51 fixedly connected to the adjustment ring 19. The third transmission motor 51 is controlled by a PLC programming program, and can control the third transmission motor 51 to rotate forward and reverse and rotate at an angle. The output end of the third transmission motor 51 is fixedly connected to the third transmission shaft 52 through a coupling. The outer surface of the third transmission shaft 52 is fixedly sleeved with a fifth gear 53. The outer surface of the fifth gear 53 is meshed with a transmission ring gear 54 fixedly connected to the adjustment ring 19. The third transmission shaft 52 is driven to rotate by the third transmission motor 51. The third transmission shaft 52 drives the transmission ring gear 54 to rotate through the fifth gear 53. The transmission ring gear 54 drives the adjustment ring 19 to rotate.

[0043] During the training process, the first transmission tube 12 is driven to rotate by the first transmission mechanism, and the first transmission tube 12 drives the connecting frame 13 to rotate horizontally. At the same time, the movable threaded rod 15 is driven to rotate by the adjusting motor 14, and the movable threaded rod 15 drives the slider 16 to move. The slider 16 drives the second transmission tube 17 and the mounting ring 18 to move. At the same time, the second transmission tube 17 and the mounting ring 18 are driven to rotate by the second transmission mechanism on the slider 16, and then the adjusting ring 19 on the mounting ring 18 is driven to rotate by the third transmission mechanism. The adjusting ring 19 drives the camera 190 to rotate through the connecting column, thereby realizing multi-angle adjustment of the camera 190, so that the camera 190 can record the trainee's operation from multiple angles during the trainee's training, further improving the recording effect of the trainee's operation, facilitating the subsequent review and analysis of the operation process, and further improving the effect of the training device in the training teaching process.

[0044] Example 3

[0045] Based on Example 2, please refer to Figure 1 、 Figure 2 and Figure 5As shown, the suction mechanism includes a suction fan 21 fixedly connected to the mounting plate 2, the input end of the suction fan 21 is fixedly connected to a first connecting pipe 22 connected to the mounting pipe 3, the outer surface of the mounting pipe 3 is fixedly connected to a second connecting pipe 23 rotatably connected to the first transmission pipe 12, the outer surface of the first transmission pipe 12 is fixedly connected to a hose 24, one end of the hose 24 is fixedly connected to a third connecting pipe 25 rotatably connected to the second transmission pipe 17, the outer surface of the second transmission pipe 17 is fixedly connected to an suction ring pipe 26 fixedly connected to the mounting ring 18 through a pipe, and the outer surface of the suction ring pipe 26 is fixedly connected to an suction hood 27;

[0046] During the operation of the trainees, the camera 190 is recording in real time and the suction fan 21 is started at the same time. The suction fan 21 sucks air from the installation tube 3 through the first connecting tube 22, and the installation tube 3 sucks air from the first transmission tube 12 through the second connecting tube 23. The first transmission tube 12 sucks air from the second transmission tube 17 through the hose 24 and the third connecting tube 25. The second transmission tube 17 sucks hydrogen leaked during the leakage detection training through the suction ring tube 26 and the suction hood 27 on the suction ring tube 26, and then discharges it to a safe place, thereby realizing timely discharge of the hydrogen generated during the training, preventing the risk of combustion caused by excessive accumulation of hydrogen, and further improving the safety of the training process.

[0047] Working principle: By fixing the hydrogen power system structure of the hydrogen vehicle on the placement plate 4, during the practical training and teaching process, the lifting mechanism drives the mounting plate 2 to move up and down, and the mounting plate 2 drives the placement plate 4 to move up and down through the mounting tube 3, thereby realizing the adjustment of the height of the hydrogen power system, which is convenient for the trainees to operate the hydrogen detection on the hydrogen energy system structure. At the same time, the driving mechanism can drive the mounting tube 3 to rotate, and the mounting tube 3 drives the placement plate 4 to rotate, and the placement plate 4 drives the hydrogen power system structure to rotate, so that some structures of the hydrogen power system structure on the placement plate 4 can be rotated to a position that is easy for the trainees to operate, thereby realizing that during the practical training process, the hydrogen power system structure can be adjusted in height and horizontal angle, which is convenient for the trainees to perform better practical training operations. At the same time, during the practical training process, the image recording mechanism is used to record the trainees' operations from multiple angles and directions, which is convenient for subsequent review and analysis of misoperations that occur during the operation process, further improving the role of the training device in the practical training and teaching process.

[0048] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims.

Claims

1. A hydrogen leak detection training device for hydrogen-powered vehicles, characterized in that: include: A mounting frame (1), wherein a mounting plate (2) is slidably connected to the mounting frame (1), a mounting tube (3) is rotatably connected to the mounting plate (2), a placement plate (4) is fixedly connected to the top of the mounting tube (3), and a lifting mechanism connected to the mounting frame (1) is transmission-connected to the mounting plate (2), and the lifting mechanism is used to drive the mounting plate (2) to move up and down; The outer surface of the mounting tube (3) is connected to a driving mechanism, and the driving mechanism is used to drive the mounting tube (3) to rotate; An image recording mechanism connected to the mounting plate (2) is fixedly connected to the mounting tube (3), and the image recording mechanism is used to record operations during the teaching practice in real time.

2. A hydrogen leak detection training device for hydrogen-powered vehicles according to claim 1, characterized in that: The image recording mechanism comprises a connecting frame (11) fixedly connected to the mounting tube (3), a first transmission tube (12) being rotatably connected to the connecting frame (11), a connecting frame (13) being fixedly connected to the outer surface of the first transmission tube (12), an adjusting motor (14) being fixedly connected to one side of the connecting frame (13), an output end of the adjusting motor (14) being fixedly connected to a moving threaded rod (15) rotatably connected to the connecting frame (13) via a coupling, an outer surface of the moving threaded rod (15) being threadedly engaged with the connecting frame (1 3) a sliding block (16) connected in a sliding manner, wherein a second transmission tube (17) is rotatably connected to the slider (16), a mounting ring (18) is fixedly connected to the bottom end of the second transmission tube (17), an adjusting ring (19) is slidably connected inside the mounting ring (18), and a camera (190) is fixedly connected to the inner surface of the adjusting ring (19) via a connecting column, and an air suction mechanism is provided on the mounting ring (18) and is respectively connected to the mounting plate (2) and the mounting tube (3), and the air suction mechanism is used to remove hydrogen generated during the training process; The outer surface of the first transmission tube (12) is connected to a first transmission mechanism connected to the connecting frame (11), and the first transmission mechanism is used to drive the first transmission tube (12) to rotate. The outer surface of the second transmission tube (17) is connected to a second transmission mechanism connected to the slider (16), and the second transmission mechanism is used to drive the second transmission tube (17) to rotate. The outer surface of the adjustment ring (19) is connected to a third transmission mechanism connected to the adjustment ring (19), and the third transmission mechanism is used to drive the adjustment ring (19) to rotate.

3. A hydrogen leak detection training device for hydrogen-powered vehicles according to claim 2, characterized in that: The air suction mechanism comprises a suction fan (21) fixedly connected to the mounting plate (2), an input end of the suction fan (21) is fixedly connected to a first connecting pipe (22) connected to the mounting pipe (3), an outer surface of the mounting pipe (3) is fixedly connected to a second connecting pipe (23) rotatably connected to the first transmission pipe (12), an outer surface of the first transmission pipe (12) is fixedly connected to a hose (24), one end of the hose (24) is fixedly connected to a third connecting pipe (25) rotatably connected to the second transmission pipe (17), an outer surface of the second transmission pipe (17) is fixedly connected to an air suction ring pipe (26) fixedly connected to the mounting ring (18) through a pipeline, and an outer surface of the air suction ring pipe (26) is fixedly connected to an air suction hood (27).

4. A hydrogen leak detection training device for hydrogen-powered vehicles according to claim 2, characterized in that: The first transmission mechanism comprises a first transmission motor (31) fixedly connected to the connecting frame (11); an output end of the first transmission motor (31) is fixedly connected to a first transmission shaft (32) via a coupling; a first gear (33) is fixedly sleeved on an outer surface of the first transmission shaft (32); and a second gear (34) is meshedly connected to an outer surface of the first gear (33) and fixedly sleeved on the first transmission tube (12).

5. A hydrogen leak detection training device for hydrogen-powered vehicles according to claim 2, characterized in that: The second transmission mechanism comprises a second transmission motor (41) fixedly connected to the slider (16); an output end of the second transmission motor (41) is fixedly connected to a second transmission shaft (42) via a coupling; a third gear (43) is fixedly sleeved on an outer surface of the second transmission shaft (42); and an outer surface of the third gear (43) is meshedly connected to a fourth gear (44) fixedly sleeved on the second transmission tube (17).

6. A hydrogen leak detection training device for hydrogen-powered vehicles according to claim 2, characterized in that: The third transmission mechanism comprises a third transmission motor (51) fixedly connected to the adjustment ring (19); an output end of the third transmission motor (51) is fixedly connected to a third transmission shaft (52) via a coupling; a fifth gear (53) is fixedly sleeved on the outer surface of the third transmission shaft (52); and an outer surface of the fifth gear (53) is meshedly connected to a transmission gear ring (54) fixedly connected to the adjustment ring (19).

7. A hydrogen leak detection training device for hydrogen-powered vehicles according to claim 1, characterized in that: The driving mechanism comprises a driving motor (61) fixedly connected to the mounting plate (2); an output end of the driving motor (61) is fixedly connected to a driving shaft (62) via a coupling; a first driving gear (63) is fixedly sleeved on the outer surface of the driving shaft (62); and a second driving gear (64) is meshedly connected to the outer surface of the first driving gear (63) and fixedly sleeved on the mounting tube (3).

8. The hydrogen leakage detection training device for hydrogen-powered vehicles according to claim 1 is characterized in that: The lifting mechanism comprises a fourth transmission motor (71) fixedly connected to the mounting frame (1); an output end of the fourth transmission motor (71) is fixedly connected to a fourth transmission shaft (72) via a coupling; a lifting threaded rod (73) threadedly connected to the mounting plate (2) is rotatably connected to the mounting frame (1); the lifting threaded rod (73) and the fourth transmission shaft (72) are connected via a transmission gear and a gear belt.

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