阅读说明：本技术 一种新能源汽车用储氢燃料电池的性能测试装置 (Hydrogen storage fuel cell's capability test device for new energy automobile ) 是由 陈子龙 杨继斌 武小花 曾令洲 胡声洋 肖丰 牟森 于 2021-07-27 设计创作，主要内容包括：本发明公开了一种新能源汽车用储氢燃料电池的性能测试装置,属于储氢燃料电池检测技术领域。一种新能源汽车用储氢燃料电池的性能测试装置,包括测试箱,所述测试箱上方设置有安装顶板,所述安装顶板下侧拐角处通过连接板与测试箱上侧固定连接；所述安装顶板中央固定连接有悬置板,所述测试箱内部开设有容置槽；所述容置槽侧壁开设有限位槽,所述限位槽上滑动连接有承托组件A,所述承托组件A上设置有承托组件B；所述容置槽上方设置有紧固组件,所述紧固组件设置于承托组件B上方；本发明解决了现有技术中氢燃料电池的性能测试装置无法准确的定位和夹紧被测的氢燃料电池从而影响测试结果的准确度的问题。(The invention discloses a performance testing device for a hydrogen storage fuel cell for a new energy automobile, and belongs to the technical field of hydrogen storage fuel cell detection. A performance testing device for a hydrogen storage fuel cell for a new energy automobile comprises a testing box, wherein an installation top plate is arranged above the testing box, and corners of the lower side of the installation top plate are fixedly connected with the upper side of the testing box through connecting plates; a suspension plate is fixedly connected to the center of the mounting top plate, and a containing groove is formed in the test box; a limiting groove is formed in the side wall of the accommodating groove, a bearing component A is connected to the limiting groove in a sliding mode, and a bearing component B is arranged on the bearing component A; a fastening component is arranged above the accommodating groove and is arranged above the bearing component B; the invention solves the problem that the performance testing device of the hydrogen fuel cell in the prior art can not accurately position and clamp the tested hydrogen fuel cell, thereby influencing the accuracy of the testing result.)

1. The utility model provides a new energy automobile is with hydrogen storage fuel cell's capability test device, includes test box (1), test box (1) top is provided with installation roof (2), its characterized in that: the lower corner of the mounting top plate (2) is fixedly connected with the upper side of the test box (1) through a connecting plate (202); a suspension plate (201) is fixedly connected to the center of the mounting top plate (2), and a containing groove (5) is formed in the test box (1); a limiting groove (6) is formed in the side wall of the accommodating groove (5), a bearing component A (3) is connected to the limiting groove (6) in a sliding mode, and a bearing component B (4) is arranged on the bearing component A (3); and a fastening component (7) is arranged above the accommodating groove (5), and the fastening component (7) is arranged above the bearing component B (4).

2. The device for testing the performance of the hydrogen storage fuel cell for the new energy automobile according to claim 1, characterized in that: the bearing component A (3) comprises a connecting bent rod (301), and an adjusting rod (303) is inserted at the upper end of the connecting bent rod (301) in a sliding manner; the outer part of the adjusting rod (303) is movably sleeved with a spring A (304), and a cross rod (302) is fixedly connected between the upper ends of the two connecting bent rods (301).

3. The device for testing the performance of the hydrogen storage fuel cell for the new energy automobile according to claim 2, characterized in that: the upper end of the adjusting rod (303) is fixedly connected with a sliding rod A (305), and one end of the sliding rod A (305) is connected in the limiting groove (6) in a sliding manner; an adjusting groove A (306) is formed in the center of the sliding rod A (305), and springs B (307) are fixedly connected to two sides of the inside of the adjusting groove A (306).

4. The device for testing the performance of the hydrogen storage fuel cell for the new energy automobile according to claim 3, characterized in that: the bearing component B (4) comprises a bearing block (401), one side of the bearing block (401) is connected to the sliding rod B (403) in a sliding mode, and a clamping groove is formed in the inner side of the bearing block (401); two ends of the sliding rod B (403) are fixedly connected to two ends above the moving seat (402), two ends of the sliding rod B (403) are movably sleeved with a spring C (404), and the spring C (404) is in contact with the bearing block (401); the moving seat (402) is connected to a sliding rod A (305) in a sliding mode, and the side wall of the sliding rod A (305) is abutted to the tail end of a spring B (307).

5. The performance testing device of the hydrogen storage fuel cell for the new energy automobile according to any one of claims 1 to 4, characterized in that: the fastening assembly (7) comprises a connecting inclined rod A (702) and a connecting inclined rod B (703), and the connecting inclined rods A (702) and B (703) of the same group are movably connected through a rotating shaft; and a linkage block (704) is arranged between the adjacent rotating shafts, the tail ends of the connecting inclined rod A (702) and the connecting inclined rod B (703) are fixedly connected with connecting gears (7021), and the adjacent connecting gears (7021) are in meshing connection.

6. The device for testing the performance of the hydrogen storage fuel cell for the new energy automobile according to claim 5, characterized in that: the axis of the connecting gear (7021) on the same side is rotatably connected to the mounting seat (701) through a connecting shaft (7022); two groups of mounting seats (701) are arranged, the upper mounting seat (701) is fixedly connected to the lower side of the suspension plate (201), and a fastening air bag (708) is fixedly connected below the lower mounting seat (701) through a fixing seat (707); the center of the linkage block (704) at one side is connected with a linkage sliding rod (705) in a sliding way, and the center of the linkage block (704) at the other side is connected with a linkage screw rod (706) in a threaded way; the linkage sliding rod (705) is fixedly connected with the linkage lead screw (706), and the two groups of linkage lead screws (706) are fixedly connected.

7. The device for testing the performance of the hydrogen storage fuel cell for the new energy automobile according to claim 6, characterized in that: the center of the linkage screw rod (706) is provided with a transmission assembly (9) in a matching manner, the transmission assembly (9) comprises a driving motor (901), and the rear side of the driving motor (901) is fixedly connected with one side of the suspension plate (201) through a connecting seat (905); the front end of an output shaft of the driving motor (901) is provided with a transmission wheel set A (902), a transmission shaft (904) is fixedly connected to a shaft center below the transmission wheel set A (902), a transmission wheel set B (903) is arranged in the center of the transmission shaft (904), and a front shaft center of the transmission wheel set B (903) is fixedly connected to the joint of the two linkage lead screws (706).

8. The device for testing the performance of the hydrogen storage fuel cell for the new energy automobile according to claim 7, characterized in that: the two ends of the transmission shaft (904) are provided with auxiliary assemblies (8), each auxiliary assembly (8) comprises an adjusting screw rod (803), and the adjusting screw rods (803) are clamped at the tail ends of the transmission shaft (904) in a sliding manner; the auxiliary assembly (8) comprises an air supply air bag (802), the outer side of the air supply air bag (802) is fixedly connected to the inner side of the installation side plate (801), the installation side plate (801) is fixedly connected to the inner side of the connecting plate (202), and an elastic assembly is arranged inside the air supply air bag (802).

9. The device for testing the performance of the hydrogen storage fuel cell for the new energy automobile according to claim 8, characterized in that: an extrusion block (806) is arranged on one side of the air supply air bag (802), a pushing plate (805) is fixedly connected to the other side of the extrusion block (806), and positioning slide bars are slidably connected to two sides of the pushing plate (805); one end of the positioning sliding rod is fixedly connected to one side of the mounting side plate (801), the other end of the positioning sliding rod is fixedly connected with a front seat (804), the center of the front seat (804) is in threaded connection with an adjusting screw rod (803), and the tail end of the adjusting screw rod (803) is movably connected with the center of the pushing plate (805); the rear side of the air supply air bag (802) is provided with an air duct (807), the other end of the air duct (807) is fixedly connected to one side of the upper end of the fastening air bag (708), and the air duct (807) is a flexible pipe.

Technical Field

The invention belongs to the technical field of hydrogen storage fuel cell detection, and particularly relates to a performance testing device for a hydrogen storage fuel cell for a new energy automobile.

Background

A hydrogen fuel cell is a cell that uses hydrogen, a chemical element, to store energy; the basic principle is that the reverse reaction of the electrolytic water, hydrogen and oxygen are respectively supplied to the anode and the cathode, and the hydrogen is diffused outwards through the anode and reacts with the electrolyte, and then electrons are emitted to the cathode through an external load; the membrane electrode in the hydrogen fuel cell is a key component of the proton exchange membrane fuel cell, and the performance directly determines the output performance of the fuel cell, so that the membrane electrode of the hydrogen fuel cell is tested firstly in the test or production process to detect whether various performances of the membrane electrode of the hydrogen fuel cell meet the requirements, and meanwhile, the membrane electrode performance of the hydrogen fuel cell under different pressure states needs to be simulated.

However, when the performance testing device of the hydrogen fuel cell in the prior art is used for carrying out experiments, the hydrogen fuel cell is not provided with a special positioning clamp and a special pre-tightening shockproof measure, so that the tested fuel cell cannot be accurately positioned and clamped, and the performance test cannot be well assisted, thereby influencing the accuracy of the performance test result of the hydrogen fuel cell; therefore, the invention provides a performance testing device of a hydrogen storage fuel cell for a new energy automobile, which aims to solve the problems.

Disclosure of Invention

The invention aims to solve the following problems in the prior art:

(1) the performance testing device of the hydrogen fuel cell in the prior art cannot accurately position and clamp the tested hydrogen fuel cell, thereby influencing the accuracy of the testing result.

In order to achieve the purpose, the invention adopts the following technical scheme:

a performance testing device for a hydrogen storage fuel cell for a new energy automobile comprises a testing box, wherein an installation top plate is arranged above the testing box, and corners of the lower side of the installation top plate are fixedly connected with the upper side of the testing box through connecting plates; a suspension plate is fixedly connected to the center of the mounting top plate, and a containing groove is formed in the test box; a limiting groove is formed in the side wall of the accommodating groove, a bearing component A is connected to the limiting groove in a sliding mode, and a bearing component B is arranged on the bearing component A; and a fastening component is arranged above the accommodating groove and is arranged above the bearing component B.

Preferably, the bearing component A comprises a connecting bent rod, and an adjusting rod is inserted at the upper end of the connecting bent rod in a sliding manner; the outside activity of adjusting the pole has cup jointed spring A, two fixedly connected with horizontal pole between the connecting bent rod upper end.

Preferably, the upper end of the adjusting rod is fixedly connected with a slide rod A, and one end of the slide rod A is connected in the limiting groove in a sliding manner; an adjusting groove A is formed in the center of the sliding rod A, and springs B are fixedly connected to the two sides of the inside of the adjusting groove A.

Preferably, the bearing component B comprises a bearing block, one side of the bearing block is connected to the sliding rod B in a sliding manner, and a clamping groove is formed in the inner side of the bearing block; two ends of the sliding rod B are fixedly connected to two ends above the moving seat, two ends of the sliding rod B are movably sleeved with springs C, and the springs C are in contact with the bearing blocks; the movable seat is connected to the sliding rod A in a sliding mode, and the side wall of the sliding rod A abuts against the tail end of the spring B.

Preferably, the fastening assembly comprises a connecting inclined rod A and a connecting inclined rod B, and the connecting inclined rods A and the connecting inclined rods B of the same group are movably connected through a rotating shaft; and a linkage block is arranged between the rotating shafts, the connecting inclined rod A is connected with a connecting gear fixedly connected with the tail end of the inclined rod B, and the connecting gears are adjacent to each other and are in meshed connection.

Preferably, the axle center of the connecting gear on the same side is rotatably connected to the mounting seat through a connecting shaft; the two groups of mounting seats are arranged, the upper mounting seat is fixedly connected to the lower side of the suspension plate, and a fastening air bag is fixedly connected below the lower mounting seat through a fixing seat; the center of the linkage block at one side is connected with a linkage slide rod in a sliding way, and the center of the linkage block at the other side is connected with a linkage screw rod in a threaded way; the linkage slide rod is fixedly connected with the linkage lead screws, and the two groups of linkage lead screws are fixedly connected.

Preferably, the center of the linkage screw rod is provided with a transmission assembly in a matching manner, the transmission assembly comprises a driving motor, and the rear side of the driving motor is fixedly connected with one side of the suspension plate through a connecting seat; the front end of an output shaft of the driving motor is provided with a transmission wheel set A, a transmission shaft is fixedly connected to a shaft center below the transmission wheel set A, a transmission wheel set B is arranged in the center of the transmission shaft, and a front shaft center of the transmission wheel set B is fixedly connected to the joint of the two linkage screws.

Preferably, the two ends of the transmission shaft are provided with auxiliary components, each auxiliary component comprises an adjusting screw rod, and the adjusting screw rods are slidably clamped at the tail ends of the transmission shafts; the auxiliary assembly comprises an air supply air bag, the outer side of the air supply air bag is fixedly connected to the inner side of the mounting side plate, the mounting side plate is fixedly connected to the inner side of the connecting plate, and an elastic assembly is arranged inside the air supply air bag.

Preferably, one side of the air supply air bag is provided with an extrusion block, the other side of the extrusion block is fixedly connected with a pushing plate, and two sides of the pushing plate are slidably connected with positioning slide rods; one end of the positioning slide rod is fixedly connected to one side of the mounting side plate, the other end of the positioning slide rod is fixedly connected with a front seat, the center of the front seat is in threaded connection with an adjusting screw rod, and the tail end of the adjusting screw rod is movably connected with the center of the pushing plate; the air supply air bag is characterized in that an air guide tube is arranged on the rear side of the air supply air bag, the other end of the air guide tube is fixedly connected to one side of the upper end of the fastening air bag, and the air guide tube is a flexible tube.

Compared with the prior art, the invention provides a performance testing device of a hydrogen storage fuel cell for a new energy automobile, which has the following beneficial effects:

(1) according to the invention, through the arrangement of the bearing component A and the bearing component B, when the performance test of the fuel cell is required, the tested fuel cell is firstly placed on the bearing block of the bearing component B, so that four corners of the lower side of the fuel cell are respectively positioned in the clamping grooves, the distance between the bearing blocks and the distance between the moving seats are changed under the adjusting action of the spring B and the spring C, and the lower end of the fuel cell is clamped and fastened by the bearing component B; the gravity action of the fuel cell drives the sliding rod A in the bearing assembly A to slide downwards along the limiting groove, the tail end of the sliding rod A extrudes the adjusting rod downwards to enable the spring A to shrink, so that the stability of the fuel cell after clamping is maintained, then the fastening assembly is matched to enable the fuel cell to be accurately positioned, and then the fuel cell is subjected to performance testing through related parts inside the testing box, so that the accuracy of a testing result is guaranteed.

(2) By arranging the fastening component, after the fuel cell is smoothly clamped on the bearing component B, the driving motor in the transmission component can be started, the transmission wheel set A and the transmission wheel set B are driven by the driving motor to sequentially transmit, so that the transmission shaft and the linkage screw rod are driven to rotate, when the linkage screw rod rotates, one side linkage block in the fastening component moves along the linkage screw rod under the action of threads, the linkage block drives the included angle of two adjacent groups of connecting inclined rods A and B to change through rotating shafts at two sides, the connecting gear rotates and is meshed therewith, the change of the included angle of the connecting inclined rod A and the connecting inclined rod B can push the mounting base at the lower end to drive the fixing base to move downwards, the fixing base drives the fastening air bag to move downwards, and the lower side of the fastening air bag is provided with a rubber contact layer, and is in flexible contact when the lower side of the fastening air bag is in contact with the upper side of the fuel cell, and continues to advance downward after contact so that the position of the fuel cell is further defined.

(3) The invention is provided with the auxiliary assembly, and needs to be explained that the lower side surface of the fastening air bag is also provided with the pressure sensor, the pressure can be transmitted to the controller of the device in real time for adjusting the drive of each electrical element, in the descending process of the fastening air bag, the drive of the drive motor can drive the transmission shaft to rotate, so as to drive the adjusting screw rods at two sides to rotate, when the adjusting screw rods rotate, the tail ends of the adjusting screw rods move towards the direction of the installation side plate under the action of the screw threads of the preposed seat, so that the pushing plate drives the extrusion block to move and extrude the air supply air bag, so that the air in the air supply air bag enters the fastening air bag along the air guide tube, the fastening air bag is vertically expanded and further extrudes the fuel cell, and the expanded fastening air bag can ensure that the pressure sensor at the bottom of the fastening air bag is more fully contacted with the fuel cell, and the fed-back pressure value is more accurate, the signal that fuel cell location reaches standard is favorable to judging.

Drawings

Fig. 1 is a schematic structural diagram of a performance testing device of a hydrogen storage fuel cell for a new energy vehicle according to the present invention;

fig. 2 is a schematic structural diagram of a performance testing device of a hydrogen storage fuel cell for a new energy vehicle, which is provided by the invention, and fig. 1 is turned to ninety degrees;

fig. 3 is a schematic connection diagram of a performance testing device testing box of a hydrogen storage fuel cell for a new energy automobile, a supporting component a and a supporting component B according to the present invention;

fig. 4 is a schematic view of an internal structure of a test box of a performance testing device of a hydrogen storage fuel cell for a new energy vehicle according to the present invention;

fig. 5 is a schematic structural diagram of a bearing assembly a and a bearing assembly B of a performance testing device of a hydrogen storage fuel cell for a new energy vehicle according to the present invention;

fig. 6 is a schematic view of a partial structure of a device for testing the performance of a hydrogen storage fuel cell for a new energy vehicle according to the present invention;

FIG. 7 is a schematic structural diagram of a transmission assembly, an auxiliary assembly and a fastening assembly of a performance testing device of a hydrogen storage fuel cell for a new energy automobile according to the present invention;

FIG. 8 is a schematic structural diagram of a transmission assembly, an auxiliary assembly and a fastening assembly of a performance testing device of a hydrogen storage fuel cell for a new energy automobile according to the present invention;

fig. 9 is a schematic structural diagram of an auxiliary component and a fastening component of a performance testing device of a hydrogen storage fuel cell for a new energy automobile according to the present invention;

fig. 10 is a schematic structural diagram of a transmission assembly and an auxiliary assembly of a performance testing device of a hydrogen storage fuel cell for a new energy automobile according to the present invention.

The reference numbers in the figures illustrate:

1. a test box; 2. installing a top plate; 201. a suspension plate; 202. a connecting plate; 3. a bearing component A; 301. connecting the bent rod; 302. a cross bar; 303. adjusting a rod; 304. a spring A; 305. a slide bar A; 306. an adjusting groove A; 307. a spring B; 4. a supporting component B; 401. a bearing block; 402. a movable seat; 403. a slide bar B; 404. a spring C; 5. a containing groove; 6. a limiting groove; 7. a fastening assembly; 701. a mounting seat; 702. connecting an inclined rod A; 7021. a connecting gear; 7022. a connecting shaft; 703. connecting an inclined rod B; 704. a linkage block; 705. linking the slide bars; 706. a linkage lead screw; 707. a fixed seat; 708. fastening the air bag; 8. an auxiliary component; 801. installing a side plate; 802. an air supply air bag; 803. adjusting the screw rod; 804. a front seat; 805. a pushing plate; 806. extruding the block; 807. an air duct; 9. a transmission assembly; 901. a drive motor; 902. a transmission wheel set A; 903. a transmission wheel set B; 904. a drive shaft; 905. a connecting seat.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Example 1:

referring to fig. 1-5, a performance testing device for a hydrogen storage fuel cell for a new energy automobile comprises a testing box 1, wherein a mounting top plate 2 is arranged above the testing box 1, and a corner at the lower side of the mounting top plate 2 is fixedly connected with the upper side of the testing box 1 through a connecting plate 202; the center of the installation top plate 2 is fixedly connected with a suspension plate 201, and a containing groove 5 is formed in the test box 1; a limiting groove 6 is formed in the side wall of the accommodating groove 5, a supporting component A3 is connected to the limiting groove 6 in a sliding mode, and a supporting component B4 is arranged on the supporting component A3; a fastening component 7 is arranged above the accommodating groove 5, and the fastening component 7 is arranged above the bearing component B4;

the bearing component A3 comprises a connecting bent rod 301, and an adjusting rod 303 is inserted at the upper end of the connecting bent rod 301 in a sliding manner; a spring A304 is movably sleeved outside the adjusting rod 303, and a cross rod 302 is fixedly connected between the upper ends of the two connecting bent rods 301;

the upper end of the adjusting rod 303 is fixedly connected with a slide rod A305, and one end of the slide rod A305 is slidably connected in the limiting groove 6; an adjusting groove A306 is formed in the center of the sliding rod A305, and springs B307 are fixedly connected to two sides inside the adjusting groove A306;

the supporting component B4 comprises a supporting block 401, one side of the supporting block 401 is connected to the sliding rod B403 in a sliding mode, and the inner side of the supporting block 401 is provided with an engaging groove; two ends of a sliding rod B403 are fixedly connected to two ends above the moving seat 402, two ends of the sliding rod B403 are movably sleeved with a spring C404, and the spring C404 is in contact with the bearing block 401; the movable seat 402 is connected to the slide bar A305 in a sliding manner, and the side wall of the slide bar A305 abuts against the tail end of the spring B307;

according to the invention, through arranging the supporting component A3 and the supporting component B4, when the performance test of the fuel cell is required, the tested fuel cell is firstly placed on the supporting block 401 of the supporting component B4, so that four corners of the lower side of the fuel cell are respectively positioned in the clamping grooves, the distance between the supporting blocks 401 and the distance between the moving seats 402 are changed under the adjusting action of the springs B307 and C404, and the lower end of the fuel cell is clamped and fastened by the supporting component B4; the gravity action of the fuel cell drives the sliding rod A305 in the bearing component A3 to slide downwards along the limiting groove 6, the tail end of the sliding rod A305 enables the spring A304 to shrink through downwards extruding the adjusting rod 303, so that the stability of the clamped fuel cell is maintained, then the fastening component 7 is matched to enable the fuel cell to be accurately positioned, and then the performance of the fuel cell is tested through related components in the testing box 1, so that the accuracy of a testing result is guaranteed.

Example 2:

as shown in fig. 6 to 8, there is a difference based on embodiment 1 in that:

the fastening assembly 7 comprises a connecting inclined rod A702 and a connecting inclined rod B703, and the connecting inclined rods A702 and B703 of the same group are movably connected through a rotating shaft; a linkage block 704 is arranged between the adjacent rotating shafts, the tail ends of the connecting inclined rod A702 and the connecting inclined rod B703 are fixedly connected with connecting gears 7021, and the adjacent connecting gears 7021 are in meshed connection;

the axis of the connecting gear 7021 on the same side is rotatably connected to the mounting seat 701 through a connecting shaft 7022; two groups of mounting seats 701 are arranged, the upper mounting seat 701 is fixedly connected to the lower side of the suspension plate 201, and a fastening air bag 708 is fixedly connected below the lower mounting seat 701 through a fixing seat 707; the center of the linkage block 704 at one side is connected with a linkage slide rod 705 in a sliding way, and the center of the linkage block 704 at the other side is connected with a linkage screw rod 706 in a threaded way; the linkage slide rod 705 is fixedly connected with the linkage lead screw 706, and the two groups of linkage lead screws 706 are fixedly connected;

the center of the linkage screw rod 706 is provided with a transmission assembly 9 in a matching manner, the transmission assembly 9 comprises a driving motor 901, and the rear side of the driving motor 901 is fixedly connected with one side of the suspension plate 201 through a connecting seat 905; a transmission wheel set A902 is arranged at the front end of an output shaft of the driving motor 901, a transmission shaft 904 is fixedly connected to a shaft center below the transmission wheel set A902, a transmission wheel set B903 is arranged in the center of the transmission shaft 904, and the shaft center at the front side of the transmission wheel set B903 is fixedly connected to the joint of the two linkage lead screws 706;

according to the invention, by arranging the fastening component 7, after the fuel cell is smoothly clamped on the supporting component B4, the driving motor 901 in the transmission component 9 is started, the driving wheel set A902 and the driving wheel set B903 are driven to sequentially transmit through the driving motor 901, so that the driving shaft 904 and the linkage screw rod 706 are driven to rotate, when the linkage screw rod 706 rotates, the linkage block 704 on one side in the fastening component 7 moves along the linkage screw rod 706 under the action of threads, the linkage block 704 drives the included angles of two adjacent groups of connecting inclined rods A702 and B703 to change through rotating shafts on two sides, the connecting gear 7021 rotates and is meshed therewith, the change of the included angle between the connecting inclined rod A702 and the connecting inclined rod B703 can push the mounting seat 701 on the lower end to drive the fixing seat 707 to move downwards, the fixing seat 707 drives the fastening air bag 708 to move downwards, it needs to be said that the lower side of the fastening air bag 708 is provided with a rubber contact layer, when the lower side of the fastening air bag 708 is in contact with the upper side of the fuel cell, and continues to advance downward after contact so that the position of the fuel cell is further defined.

Example 3:

as shown in FIGS. 8 to 10, the following differences are based on the embodiments 1 to 2:

two ends of the transmission shaft 904 are provided with auxiliary assemblies 8, each auxiliary assembly 8 comprises an adjusting screw 803, and the adjusting screws 803 are slidably clamped at the tail ends of the transmission shaft 904; the auxiliary assembly 8 comprises an air supply air bag 802, the outer side of the air supply air bag 802 is fixedly connected to the inner side of the mounting side plate 801, the mounting side plate 801 is fixedly connected to the inner side of the connecting plate 202, and an elastic assembly is arranged inside the air supply air bag 802;

one side of the air supply air bag 802 is provided with an extrusion block 806, the other side of the extrusion block 806 is fixedly connected with a pushing plate 805, and two sides of the pushing plate 805 are slidably connected with positioning slide bars; one end of a positioning sliding rod is fixedly connected to one side of the installation side plate 801, the other end of the positioning sliding rod is fixedly connected with a front seat 804, the center of the front seat 804 is in threaded connection with an adjusting screw 803, and the tail end of the adjusting screw 803 is movably connected with the center of a pushing plate 805; the air duct 807 is arranged at the rear side of the air supply air bag 802, the other end of the air duct 807 is fixedly connected with one side of the upper end of the fastening air bag 708, and the air duct 807 is a flexible pipe;

the invention is provided with the auxiliary component 8, it should be noted that the lower side surface of the fastening air bag 708 is also provided with a pressure sensor, the pressure can be transmitted to the controller of the device in real time for adjusting the driving of each electrical element, in the process of descending the fastening air bag 708, the driving of the driving motor 901 can drive the transmission shaft 904 to rotate, thereby driving the adjusting screw 803 on both sides to rotate, when the adjusting screw 803 rotates, the tail end thereof moves towards the direction of the installation side plate 801 under the screw action of the preposed seat 804, thereby driving the extrusion block 806 to move through the pushing plate 805 and generate extrusion action on the air supply air bag 802, so that the air in the air supply air bag 802 enters the fastening air bag 708 along the air duct 807, so that the fastening air bag 708 expands vertically and further extrudes the fuel cell, and the expanded fastening air bag 708 can make the pressure sensor at the bottom thereof contact with the fuel cell more fully, the pressure value fed back is more accurate, and the signal up to standard in fuel cell location can be judged favorably.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.