Air tightness inspection table for hydrogen fuel cell

Abstract

The utility model relates to the technical field of fuel cell detection, in particular to a hydrogen fuel cell air tightness inspection table which comprises a workbench, a fuel cell is arranged at the upper end of the workbench, connecting ports are fixedly arranged at the front end and the rear end of the fuel cell respectively, guide sliding frames capable of moving up and down are arranged at the front end and the rear end of the workbench respectively, and guide sliding cylinders are arranged on the guide sliding frames in a sliding mode. Supporting frames are fixedly arranged at the left end and the right end of the guide sliding frame correspondingly, sliding grooves are formed in the supporting frames, rotating shafts are rotationally connected to the front end and the rear end of the workbench correspondingly, rotating plates are fixedly arranged at the ends, away from the workbench, of the rotating shafts correspondingly, and sliding rods penetrating out of the sliding grooves are arranged on the rotating plates. The sliding rod is in sliding fit with the sliding groove, a sliding cavity is formed in the guide sliding frame, a rubber pad is arranged on the side wall of the sliding cavity and abuts against the guide sliding barrel, the height position of the guide sliding frame is controlled through the sliding rod in a supporting mode, and the stability of the guide sliding barrel in the left-right direction is kept through abutting between the guide sliding barrel and the rubber pad and the rubber pad.

Description

Technical Field

[0001] The utility model relates to the technical field of fuel cell detection, in particular to an air tightness inspection platform for a hydrogen fuel cell. Background Art

[0002] As hydrogen fuel cell vehicles have entered the public eye and begun to develop rapidly, many companies have carried out research and development and production of fuel cells. As the core component of a hydrogen fuel cell engine, the reliability of a hydrogen fuel cell stack is particularly important. Therefore, in the development stage of a hydrogen fuel cell stack, various tests need to be performed on the stack. In the preparation work before testing the fuel cells of different sizes, the connection port needs to be docked with the connection pipe. However, due to changes in air pressure during the test, the connection pipe needs to be limited to stabilize the frame. However, this will result in the connection ports at different positions, and the guide slide cylinder that is positioned often cannot meet the use requirements of the connection pipe, causing the connection pipe to bend or even hinder the flow of air. Utility Model Content

[0003] The purpose of the utility model is to provide an airtightness inspection platform for a hydrogen fuel cell, so as to overcome the above-mentioned defects in the prior art.

[0004] According to the utility model, a hydrogen fuel cell air tightness inspection table includes a workbench, a fuel cell is arranged on the upper end of the workbench, connection ports are fixedly arranged at the front and rear ends of the fuel cell, guide slides that can move up and down are arranged at the front and rear ends of the workbench, a guide slide cylinder is slidably arranged on the guide slide, a sliding cavity is opened on the guide slide, a rubber pad is arranged on the side wall of the sliding cavity to abut against the guide slide cylinder, a connecting pipe that can move forward and backward is arranged on the guide slide cylinder, the connecting pipe is connected to the connection port, support frames are fixedly arranged at the left and right ends of the guide slide, and the support A slide groove is provided on the frame, and the front and rear ends of the workbench are rotatably connected with a rotating shaft. The rotating shaft is fixedly provided with a rotating plate at the end away from the workbench, and a sliding rod is provided on the rotating plate to get out of the slide groove. The sliding rod slides with the slide groove. Two front-to-back distributed stabilizing plates are provided on the outer periphery of the sliding rod and abut against the front and rear end surfaces of the slide groove. Two front-to-back symmetrical worm gears are rotatably connected to the workbench, and a turbine is fixedly provided on the outer periphery of each rotating shaft, and the turbine on the same side is meshed with the worm gear. A rotating disk is fixedly provided on each worm gear, and a handle is provided on the rotating disk.

[0005] The beneficial effects of the utility model are:

[0006] The support frame and the guide slide are supported by the sliding rod. The height position of the guide slide is controlled under the meshing of the turbine and the worm. The turbine and the worm achieve self-locking to maintain the stability of the height position of the guide slide. The abutment between the guide slide cylinder and the rubber pad maintains the stability of the guide slide cylinder in the left and right directions through the rubber pad, and the vibration force of the guide slide cylinder during operation is absorbed by the rubber pad, thereby reducing the wear of parts and increasing the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 It is a schematic diagram of the appearance of the utility model;

[0008] Figure 2 This utility model Figure 1 A schematic diagram of a top view structure;

[0009] Figure 3 This utility model Figure 1 A schematic diagram of the front view structure of

[0010] Figure 4 This utility model Figure 1 A side view structural schematic diagram of;

[0011] Figure 5 This utility model Figure 2 A partial cross-sectional schematic diagram of AA in the middle;

[0012] In the figure:

[0013] 10. Workbench; 11. Fuel cell; 12. Connecting port; 13. Guide slide frame; 14. Guide slide cylinder; 15. Connecting pipe; 16. Slide cavity; 17. Support frame; 18. Slide groove; 19. Slide rod; 20. Rotating plate; 21. Rotating shaft; 22. Turbine; 23. Worm; 24. Rotating disk. DETAILED DESCRIPTION

[0014] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0015] It should be noted that when an element is said to be "fixed to" another element, it can be directly on the other element or there can be an intermediate element. When an element is said to be "connected to" another element, it can be directly connected to the other element or there can be an intermediate element at the same time:

[0016] Embodiment 1:

[0017] Reference Figure 1-Figure 5 According to an embodiment of the utility model, a hydrogen fuel cell air tightness inspection table includes a workbench 10, a fuel cell 11 is provided at the upper end of the workbench 10, and a connection port 12 is fixedly provided at the front and rear ends of the fuel cell 11, and a guide slide 13 that can move up and down is provided at the front and rear ends of the workbench 10, and a guide slide cylinder 14 is slidably provided on the guide slide 13, and a sliding cavity 16 is opened on the guide slide 13, and a rubber pad is provided on the side wall of the sliding cavity 16 to abut against the guide slide cylinder 14, and a connecting pipe 15 that can move forward and backward is provided on the guide slide cylinder 14, and the connecting pipe 15 is connected to the connection port 12, and a support frame 17 is fixedly provided at the left and right ends of the guide slide 13, and a support frame 17 is fixedly provided at the left and right ends of the guide slide 13. A slide groove 18 is provided on the frame 17, and a rotating shaft 21 is rotatably connected to the front and rear ends of the workbench 10. A rotating plate 20 is fixedly provided at the end of the rotating shaft 21 away from the workbench 10. A slide bar 19 used to exit the slide groove 18 is provided on the rotating plate 20. The slide bar 19 is slidably matched with the slide groove 18. Two front-to-back distributed stabilizing plates are provided on the outer periphery of the slide bar 19 to abut against the front and rear end surfaces of the slide groove 18. Two front-to-back symmetrical worms 23 are rotatably connected to the workbench 10. A turbine 22 is fixedly provided on the outer periphery of each rotating shaft 21. The turbine 22 on the same side is meshed with the worm 23. A rotating disk 24 is fixedly provided on each worm 23, and a handle is provided on the rotating disk 24.

[0018] For the fuel cell 11 with the connection port 12 at different positions, the user first adjusts the height of the guide slide 13 according to the position of the connection port 12 before performing the inspection work. For example, the user rotates the rotating disk 24 to rotate the worm 23 fixedly connected to the rotating disk 24. When the worm 23 is engaged with the two turbines 22 on the same side, the turbines 22 are driven to rotate through the rotating shaft 21 with the key fit, and then the sliding rod 19 is driven to rotate around the rotating shaft 21 as the rotating shaft through the fixed connection of the rotating plate 20. With the support of the left and right sliding rods 19, the sliding rod 19 slides in the sliding groove 18, pushing the two support frames 17 to slide up and down, thereby controlling the height position of the guide slide 13 fixedly connected to the support frames 17. The user pushes the guide slide cylinder 14 to make it slide on the rubber pad at the guide slide 13, so that the connecting pipe 15 is connected to the connecting port 12 on the same side for sealing.

[0019] It is clear to those skilled in the art that various modifications to the above embodiments can be made without departing from the overall spirit and concept of the present invention. All of them fall within the protection scope of the present invention. The protection scheme of the present invention shall be subject to the claims attached to the present invention.

Claims

1. A hydrogen fuel cell air tightness inspection bench, comprising a workbench (10), a fuel cell (11) being arranged at the upper end of the workbench (10), and connection ports (12) being fixedly arranged at both the front and rear ends of the fuel cell (11), characterized in that: The front and rear ends of the workbench (10) are both provided with guide slides (13) capable of moving up and down, the guide slides (13) are slidably provided with guide slide tubes (14), the guide slide tubes (14) are provided with connecting pipes (15) capable of moving forward and backward, the connecting pipes (15) are connected with the connecting port (12), the left and right ends of the guide slides (13) are both fixed with support frames (17), the support frames (17) are provided with slide grooves (18), the front and rear ends of the workbench (10) are both rotatably connected with rotating shafts (21), the rotating shafts (21) are both fixedly provided with rotating plates (20) at the ends away from the workbench (10), the rotating plates (20) are provided with sliding rods (19) for getting out of the slide grooves (18), the sliding rods (19) are slidably matched with the slide grooves (18).

2. The air tightness inspection platform for a hydrogen fuel cell according to claim 1, characterized in that: Two symmetrical worm gears (23) are rotatably connected to the workbench (10), and a turbine (22) is fixedly arranged on the outer periphery of each rotating shaft (21), and the turbine (22) on the same side is meshed with the worm gear (23).

3. The air tightness inspection platform for a hydrogen fuel cell according to claim 2, characterized in that: The guide slide frame (13) is provided with a slide cavity (16), and a rubber pad is provided on the side wall of the slide cavity (16) to abut against the guide slide cylinder (14).

4. The air tightness inspection platform for a hydrogen fuel cell according to claim 3, characterized in that: Two stabilizing plates distributed front and back are provided on the outer periphery of the slide rod (19) and abut against the front and back end surfaces of the slide groove (18).

5. The air tightness inspection platform for a hydrogen fuel cell according to claim 4, characterized in that: A rotating disk (24) is fixedly disposed on each of the worms (23), and a handle is disposed on the rotating disk (24).

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