CN219487475U - Turnover vehicle for fuel cell stack - Google Patents

Abstract

The utility model provides a fuel cell stack turnover vehicle, comprising: the frame is provided with a cavity for accommodating the installation tool; the rolling part is arranged at the bottom of the frame to support the frame to move; the first bearing part is movably arranged on the frame; the second bearing part is movably arranged on the frame and corresponds to the first bearing part; the distance between the first bearing part and the second bearing part between the frames can be adjusted to match the size of the fuel cell stack and jointly bear the fuel cell stack. The utility model realizes the effective bearing of the fuel cell stacks with different sizes by arranging the adjustable space between the first bearing part and the second bearing part; by arranging the cavity, the matching work of the fuel cell stack turnover vehicle and the mounting tool is realized, the assembly efficiency of the fuel cell stack and the bus plate is improved, the number of tools required by the fuel cell stack in the actual assembly process is reduced, and the cost is effectively reduced.

Description

Turnover vehicle for fuel cell stack

Technical Field

The utility model relates to the technical field of fuel cell stack auxiliary equipment, in particular to a fuel cell stack transfer vehicle.

Background

Before the fuel cell engine is assembled, the fuel cell stack and the bus plate are assembled, a special turnover tool (such as a turnover vehicle) is required for carrying and turnover of the fuel cell stack, and a special installation tool is also required for the installation stage of the fuel cell stack and the bus plate.

Because special tools are needed in the turnover and installation stages of the fuel cell stacks, and the fuel cell stacks with different powers are different in size, each special turnover vehicle and installation tool need to be redesigned for each fuel cell stack, time is wasted, and the utilization rate of the tools is low; meanwhile, the tools respectively used in the turnover and installation stages cannot be effectively compatible, namely when the fuel cell stack is fixed on the turnover vehicle, the installation tools cannot be matched on the turnover vehicle for use so as to complete the assembly of the fuel cell stack and the bus plate, and the assembly efficiency of the fuel cell stack and the bus plate is low.

In the prior art, a plurality of fuel cell stack turnover vehicles exist, and turnover transportation of fuel cell stacks can be realized, for example, CN 215204956U discloses a fuel cell handling trolley, wherein a main frame is of a U-shaped frame structure, the tail part of the main frame is provided with armrests, four universal wheels are respectively arranged at four corners at the bottom of the main frame, a positioning bolt is arranged on the side surface of the tail part of the main frame, the positioning bolt can be manually pulled out and inserted into a bottom lock hole, and a lifting turnover platform mechanism is arranged in the middle part of the main frame; the butt joint positioning rod device comprises a butt joint positioning rod, a bolt connecting structure and a guide positioning locking mechanism, wherein the rear end of the butt joint positioning rod is detachably connected to the free tail end of the front part of the main frame through the bolt connecting structure, the butt joint positioning rod extends to the front of the main frame, the guide positioning locking mechanism is arranged at the front end of the butt joint positioning rod, and a control part of the guide positioning locking mechanism is arranged on the armrest; the fuel cell bearing tool in the technical scheme has the defects that the specific size cannot be adjusted, the fuel cell stacks with different sizes cannot be adapted, and meanwhile, the fuel cell bearing tool cannot work with the installation tool in a matched mode.

Disclosure of Invention

The utility model provides a fuel cell stack turnover vehicle, which solves the problems that the turnover vehicle in the prior art cannot be matched with fuel cell stacks of different sizes and cannot be matched with an installation tool.

In order to solve the above-described problems, the present utility model provides a fuel cell stack transfer vehicle comprising: the frame is provided with a cavity for accommodating the installation tool; the rolling part is arranged at the bottom of the frame to support the frame to move; the first bearing part is movably arranged on the frame; the second bearing part is movably arranged on the frame and corresponds to the first bearing part; the distance between the first bearing part and the second bearing part between the frames can be adjusted to match the size of the fuel cell stack and jointly bear the fuel cell stack.

Further, the frame comprises a hollowed-out frame body, a first fixed supporting plate and a second fixed supporting plate which are respectively arranged on two sides of the top of the hollowed-out frame body, the hollowed-out frame body is provided with a cavity, the first bearing part is movably arranged on the first fixed supporting plate, the second bearing part is movably arranged on the second fixed supporting plate, and the first fixed supporting plate, the first bearing part, the second fixed supporting plate and the second bearing part jointly bear the fuel cell stack.

Further, the first fixing supporting plate is provided with a guide groove, the first bearing part comprises an adjusting piece and a sliding block, and the sliding block is slidably arranged in the guide groove and is matched with the inner wall of the guide groove; the adjusting piece is arranged on the first fixed supporting plate and is connected with the sliding block; the guide groove constrains the sliding block to slide relative to the hollowed-out frame body, and the adjusting piece adjusts the position of the sliding block in the guide groove.

Further, the slide block is provided with a through constraint groove, the frame also comprises a limiting piece, and the limiting piece penetrates through the constraint groove and is matched with the constraint groove so as to limit the slide block to slide along the guide groove; one end of the limiting piece is in threaded connection with the bottom wall of the guide groove; and the other end of the limiting piece is abutted with the sliding block to fix the sliding block.

Further, the restraint grooves are multiple, the plurality of restraint grooves are arranged on the sliding block at intervals, the limiting pieces are multiple, and each restraint groove is at least matched with one limiting piece.

Further, the first bearing part and the second bearing part are respectively provided with a fixing pin, and the fixing pins are matched with the mounting holes on the fuel cell stack so as to limit the fuel cell stack.

Further, a plurality of fixing pins are arranged on each first bearing part at intervals, a plurality of fixing pins are arranged on each second bearing part at intervals, and each fixing pin is matched with one of a plurality of mounting holes on the fuel cell stack.

Further, the frame comprises a hollowed-out frame body, the hollowed-out frame body comprises a plurality of supporting beams, and at least a part of the supporting beams in the plurality of supporting beams are connected with each other to form a triangular structure.

Further, the fuel cell stack turnover vehicle further comprises a plurality of connecting chains, the connecting chains are arranged on the vehicle frame at intervals, and the connecting chains are used for connecting the mounting tool or the air tightness testing tool; alternatively, the connection chain is used to connect an external device to fix the fuel cell stack transfer vehicle.

Further, the fuel cell stack turnover vehicle further comprises a fixing part, wherein the fixing part comprises a tool clamp, the tool clamp is arranged on the vehicle frame, and the tool clamp is used for fixing the fuel cell stack clamp on the vehicle frame.

Further, the rolling part comprises a plurality of universal wheels which are arranged at intervals at the bottom of the frame and jointly support the frame to move, and the universal wheels have a self-locking function so as to fix the frame; the fuel cell stack turnover vehicle further comprises an armrest which is fixedly arranged on the vehicle frame.

The utility model provides a fuel cell stack turnover vehicle, which comprises: the frame is provided with a cavity for accommodating the installation tool; the rolling part is arranged at the bottom of the frame to support the frame to move; the first bearing part is movably arranged on the frame; the second bearing part is movably arranged on the frame and corresponds to the first bearing part; the distance between the first bearing part and the second bearing part between the frames can be adjusted to match the size of the fuel cell stack and jointly bear the fuel cell stack. The utility model realizes the effective bearing of the fuel cell stacks with different sizes by arranging the adjustable space between the first bearing part and the second bearing part; by arranging the cavity for being compatible with the mounting tool, the matching work of the fuel cell stack turnover vehicle and the mounting tool is realized, the assembly efficiency of the fuel cell stack and the bus plate is improved, the assembly safety is also improved, and compared with the conventional turnover vehicle, the utility model also reduces the number of tools required by the fuel cell stack in the actual assembly process, and effectively reduces the cost.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

fig. 1 is a schematic view showing a specific structure of a fuel cell stack transfer vehicle according to an embodiment of the present utility model;

FIG. 2 shows a top view of FIG. 1;

fig. 3 shows an enlarged view of the position of the first bearing part according to the embodiment of the present utility model.

Wherein the above figures include the following reference numerals:

10. a frame; 11. a cavity; 12. a hollowed-out frame body; 121. a support beam; 122. a triangular structure; 13. a first fixed pallet; 131. a guide groove; 14. a second fixed pallet; 15. a limiting piece;

20. a rolling part; 21. a universal wheel;

30. a fixing part; 31. tool clamp;

40. a first carrying part; 41. an adjusting member; 42. a slide block; 421. a restraining groove; 43. a fixing pin;

50. a second carrying part;

60. a connecting chain;

70. an armrest.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the utility model, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1 to 3, an embodiment of the present utility model provides a fuel cell stack transfer vehicle including: the frame 10, the rolling part 20, the first bearing part 40 and the second bearing part 50, wherein the frame 10 is provided with a cavity 11 for accommodating the installation tool; the rolling part 20 is provided at the bottom of the frame 10 to support the movement of the frame 10; the first bearing part 40 is movably arranged on the frame 10; the second bearing part 50 is movably arranged on the frame 10 and corresponds to the first bearing part 40; wherein the spacing between the frames 10 of the first and second load carrying portions 40, 50 is adjustable to match the size of the fuel cell stack and to collectively carry the fuel cell stack.

The utility model realizes the effective bearing of fuel cell stacks with different sizes by arranging the adjustable space between the first bearing part 40 and the second bearing part 50; by arranging the cavity 11 for being compatible with the mounting tool, the matching work of the fuel cell stack turnover vehicle and the mounting tool is realized, the assembly efficiency of the fuel cell stack and the bus plate is improved, the assembly safety is also improved, and compared with the conventional turnover vehicle, the utility model also reduces the number of tools required by the fuel cell stack in the actual assembly process, and effectively reduces the cost.

It should be noted that: during actual use, the mounting fixture is disposed in the cavity 11 to assemble and fix the bus plate with the fuel cell stack fixed on the first bearing portion 40 and the second bearing portion 50, and of course, different mounting fixtures may also have some differences, but as long as the space size of the cavity 11 is guaranteed to meet the operation requirement, the fuel cell stack turnover vehicle and different mounting fixtures can all cooperate.

As shown in fig. 1 and 2, the frame 10 includes a hollow frame 12, a first fixed supporting plate 13 and a second fixed supporting plate 14 respectively disposed on two sides of the top of the hollow frame 12, the hollow frame 12 forms a cavity 11, a first bearing portion 40 is movably disposed on the first fixed supporting plate 13, a second bearing portion 50 is movably disposed on the second fixed supporting plate 14, and the first fixed supporting plate 13, the first bearing portion 40, the second fixed supporting plate 14 and the second bearing portion 50 jointly bear the fuel cell stack.

Through setting up fretwork support body 12, both guaranteed cavity 11 big enough to follow-up work with installation frock cooperation has guaranteed frame 10 overall structure's simplification and lightweight again. By providing the first and second fixed support plates 13, 14, a reliable load bearing for the fuel cell stack is ensured.

Noteworthy are: in a specific embodiment of the present utility model, as shown in fig. 1, the cavity 11 is located at an end of the fuel cell stack turnover vehicle away from the armrest 70, so as to facilitate operation, and meanwhile, the cavity 11 is also located in the middle of the fuel cell stack turnover vehicle, so as to ensure that when the fuel cell stack turnover vehicle and the installation tool work cooperatively, the overall gravity center of the fuel cell stack turnover vehicle does not deviate greatly, and further avoid the safety problems such as toppling of the fuel cell stack turnover vehicle.

As shown in fig. 2 and 3, the first fixing pallet 13 has a guide groove 131 thereon, the first bearing part 40 includes an adjusting member 41 and a slider 42, and the slider 42 is slidably disposed in the guide groove 131 and is engaged with an inner wall of the guide groove 131; the adjusting member 41 is provided on the first fixed pallet 13 and is connected to the slider 42; the guide groove 131 restrains the sliding block 42 to slide relative to the hollow frame 12, and the adjusting member 41 adjusts the position of the sliding block 42 in the guide groove 131.

By arranging the guide groove 131 to be matched with the sliding block 42, the sliding block 42 can slide relative to the hollowed-out frame body 12, and the structural simplification of the first bearing part 40 is ensured; through setting up regulating part 41, effectively guaranteed the reliable regulation and the fixed to slider 42 position, and then guaranteed that slider 42's regulation precision satisfies the in-service use demand.

As shown in fig. 3, the sliding block 42 is provided with a through restraining groove 421, the frame 10 further includes a limiting member 15, and the limiting member 15 passes through the restraining groove 421 and cooperates with the restraining groove 421 to limit the sliding block 42 to slide along the guiding groove 131; one end of the limiting piece 15 is in threaded connection with the bottom wall of the guide groove 131; the limiting piece 15 is adjusted, and the other end of the limiting piece 15 is abutted with the sliding block 42 to fix the sliding block 42. This arrangement ensures both a sliding constraint for the slider 42 and an effective fixation of the slider 42 in the guide groove 131.

In one embodiment of the present utility model, the stop 15 is constructed with conventional guide screws to facilitate purchase and reduce cost.

Specifically, as shown in fig. 3, the number of the restraining grooves 421 is plural, the plurality of restraining grooves 421 are disposed on the slider 42 at intervals, the number of the limiting members 15 is plural, and each restraining groove 421 is at least matched with one limiting member 15. By providing the plurality of restraining grooves 421 and the stopper 15, the fixing strength of the slider 42 in the guide groove 131 is further ensured.

As shown in fig. 1, the first bearing portion 40 and the second bearing portion 50 are provided with fixing pins 43, and the fixing pins 43 cooperate with mounting holes on the fuel cell stack to limit the fuel cell stack. By providing the fixing pins 43, the restraining effect of the first and second carrying portions 40 and 50 on the fuel cell stack is effectively ensured.

In a specific embodiment of the present utility model, as shown in fig. 3, the fixing pin 43 is disposed on the slider 42, so as to ensure that the fixing pin 43 is also adjustable, thereby further improving the applicability of the first bearing portion 40.

Optionally, a plurality of fixing pins 43 are disposed on each first bearing portion 40 at intervals, a plurality of fixing pins 43 are disposed on each second bearing portion 50 at intervals, and each fixing pin 43 is matched with one of a plurality of mounting holes on the fuel cell stack. By providing a plurality of fixing pins 43, reliable restraint and limitation of the first and second carrying portions 40 and 50 to the fuel cell stack is further ensured.

In a specific embodiment of the present utility model, the first bearing portion 40 and the second bearing portion 50 have the same structure, which is convenient for processing and purchasing, and is convenient for subsequent unified maintenance and replacement; meanwhile, the number of the first bearing parts 40 is two, and the two bearing parts are respectively arranged at two ends of the first fixed supporting plate 13; the two second bearing parts 50 are respectively arranged at two ends of the second fixed supporting plate 14; this arrangement further ensures an efficient load-bearing and reliable adaptation to different sizes of fuel cell stacks.

As shown in fig. 1, the frame 10 includes a hollow frame body 12, the hollow frame body 12 includes a plurality of support beams 121, and at least some of the support beams 121 are connected to each other to form a triangle structure 122. By arranging a plurality of supporting beams 121, the structural simplicity and the light weight of the hollow frame body 12 are ensured; through setting up triangle structure 122, further improve the holistic rigidity and the intensity of fretwork support body 12, effectively improved the bearing capacity of fretwork support body 12 to satisfy the user demand of high-weight fuel cell stack.

In a specific embodiment of the present utility model, the hollowed-out frame 12 is formed by welding a plurality of support beams 121, so that the hollowed-out frame 12 is ensured to meet the actual use requirement, and the hollowed-out frame 12 is convenient to process and mold, thereby reducing the processing cost.

As shown in fig. 1, the fuel cell stack turnover vehicle further includes a plurality of connection chains 60, the plurality of connection chains 60 are arranged on the frame 10 at intervals, and the connection chains 60 are used for connecting an installation tool or an air tightness test tool; alternatively, the connection chain 60 is used to connect an external device to fix the fuel cell stack transfer vehicle.

By arranging a plurality of connecting chains 60, the suitability of the fuel cell stack turnover vehicle for mounting tools, air tightness testing tools or other tools is further improved, and the matching use effect of the fuel cell stack turnover vehicle and various tools is ensured; meanwhile, when the fuel cell stack turnover vehicle needs to be firmly fixed, the fuel cell stack turnover vehicle is firmly fixed through the connection of the connecting chain 60 and the ground or other external devices, so that the safety of the fuel cell stack during assembly is improved.

Specifically, as shown in fig. 1, the fuel cell stack transfer vehicle further includes a fixing portion 30, the fixing portion 30 includes a tooling clamp 31, the tooling clamp 31 is provided on the frame 10, and the tooling clamp 31 fixes the fuel cell stack mounting clamp on the frame 10. Through setting up frock clamp 31, adopt simple structure to realize the reliable fixed and the quick dismantlement to the fuel cell stack, simultaneously, adopt current frock clamp structure, easy operation and purchasing low cost.

In one embodiment of the present utility model, the tooling clamp 31 employs existing conventional quick tooling clamps, such as: the lower part of the fuel cell stack is abutted with the first fixed supporting plate 13 and the second fixed supporting plate 14, and the upper part of the fuel cell stack is tightly pressed and fixed by a quick tooling clamp to ensure that the fuel cell stack is firmly clamped on a fuel cell stack turnover vehicle; of course, other common tool clamps can be flexibly adopted to fix the fuel cell stack in different fixing modes according to actual use requirements.

As shown in fig. 1 and 2, the rolling part 20 includes a plurality of universal wheels 21, the plurality of universal wheels 21 are arranged at intervals at the bottom of the frame 10, and jointly support the frame 10 for movement, and the universal wheels 21 have a self-locking function so as to fix the frame 10; the fuel cell stack transfer vehicle further includes an armrest 70, and the armrest 70 is fixedly disposed on the frame 10.

By arranging the universal wheels 21, the movement flexibility of the fuel cell stack turnover vehicle is ensured, the fuel cell stack turnover vehicle can be fixed in time when being required to be fixed, and meanwhile, the fuel cell stack turnover vehicle is convenient to purchase and replace in the follow-up process by adopting the existing universal wheel structure; by providing the armrests 70, it is convenient for a worker to push and control the movement of the fuel cell stack cycle.

In one embodiment of the present utility model, an anti-slip sleeve is provided over the armrest 70 to further facilitate gripping by a worker.

In summary, the present utility model provides a fuel cell stack turnover vehicle, and the present utility model realizes effective loading of fuel cell stacks with different sizes by providing an adjustable space between the first loading portion 40 and the second loading portion 50; by arranging the cavity 11 for being compatible with the mounting tool, the matching work of the fuel cell stack turnover vehicle and the mounting tool is realized, the assembly efficiency of the fuel cell stack and the bus plate is improved, the assembly safety is also improved, and compared with the conventional turnover vehicle, the utility model also reduces the number of tools required by the fuel cell stack in the actual assembly process, and effectively reduces the cost.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present utility model unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

In the description of the present utility model, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present utility model; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present utility model.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (11)

1. A fuel cell stack transfer vehicle, characterized by comprising:

a frame (10), the frame (10) having a cavity (11) for receiving an installation tool;

a rolling part (20) arranged at the bottom of the frame (10) to support the frame (10) to move;

a first carrying part (40) movably arranged on the frame (10);

a second bearing part (50) which is movably arranged on the frame (10) and is arranged corresponding to the first bearing part (40);

wherein the spacing between the frames (10) of the first and second load carrying portions (40, 50) is adjustable to match the size of and collectively carry the fuel cell stack.

2. The fuel cell stack turnover vehicle according to claim 1, characterized in that the vehicle frame (10) comprises a hollowed-out frame body (12), a first fixed supporting plate (13) and a second fixed supporting plate (14) which are respectively arranged on two sides of the top of the hollowed-out frame body (12), the hollowed-out frame body (12) constructs the cavity (11), the first bearing part (40) is movably arranged on the first fixed supporting plate (13), the second bearing part (50) is movably arranged on the second fixed supporting plate (14), and the first fixed supporting plate (13), the first bearing part (40), the second fixed supporting plate (14) and the second bearing part (50) jointly bear the fuel cell stack.

3. The fuel cell stack turnover vehicle according to claim 2, characterized in that the first fixing pallet (13) has a guide groove (131) thereon, the first bearing part (40) includes an adjusting member (41) and a slider (42), and the slider (42) is slidably disposed in the guide groove (131) and is engaged with an inner wall of the guide groove (131); the adjusting piece (41) is arranged on the first fixed supporting plate (13) and is connected with the sliding block (42); the guide groove (131) restrains the sliding block (42) from sliding relative to the hollowed-out frame body (12), and the adjusting piece (41) adjusts the position of the sliding block (42) in the guide groove (131).

4. A fuel cell stack transfer vehicle according to claim 3, wherein the slider (42) has a through constraint groove (421), the frame (10) further comprises a stopper (15), and the stopper (15) passes through the constraint groove (421) and cooperates with the constraint groove (421) to limit the slider (42) from sliding along the guide groove (131); one end of the limiting piece (15) is in threaded connection with the bottom wall of the guide groove (131); and the limiting piece (15) is adjusted, and the other end of the limiting piece (15) is abutted with the sliding block (42) so as to fix the sliding block (42).

5. The fuel cell stack turnover vehicle as set forth in claim 4, wherein said restraining grooves (421) are plural, said restraining grooves (421) are provided at intervals on said slider (42), said stopper (15) is plural, and each of said restraining grooves (421) is fitted with at least one of said stoppers (15).

6. The fuel cell stack turnover vehicle according to claim 1, characterized in that the first carrying part (40) and the second carrying part (50) are provided with fixing pins (43), and the fixing pins (43) are matched with mounting holes on the fuel cell stack to limit the fuel cell stack.

7. The fuel cell stack turnover vehicle according to claim 6, characterized in that a plurality of said fixing pins (43) are provided on each of said first carrying portions (40) at intervals, a plurality of said fixing pins (43) are provided on each of said second carrying portions (50) at intervals, and each of said fixing pins (43) is fitted to one of a plurality of mounting holes on said fuel cell stack.

8. The fuel cell stack turnover vehicle according to claim 1, characterized in that the vehicle frame (10) comprises a hollowed-out frame body (12), the hollowed-out frame body (12) comprises a plurality of support beams (121), at least one part of the support beams (121) in the plurality of support beams (121) are mutually connected to form a triangular structure (122).

9. The fuel cell stack transfer vehicle according to claim 1, further comprising a plurality of connecting chains (60), a plurality of the connecting chains (60) being provided on the frame (10) at intervals, the connecting chains (60) being used for connecting the mounting fixture or the air tightness test fixture; alternatively, the connecting chain (60) is used for connecting an external device,

to secure the fuel cell stack transfer cart.

10. The fuel cell stack transfer cart according to claim 1, further comprising a fixing portion (30), the fixing portion (30) comprising a tooling clamp (31), the tooling clamp (31) being provided on the frame (10), the tooling clamp (31) fixing the fuel cell stack clamp on the frame (10).

11. The fuel cell stack turnover vehicle according to claim 1, characterized in that said rolling part (20) comprises a plurality of universal wheels (21), a plurality of said universal wheels (21) are arranged at intervals at the bottom of said frame (10) to jointly support said frame (10) for movement, said universal wheels (21) have a self-locking function to fix said frame (10); the fuel cell stack transfer vehicle further comprises an armrest (70), and the armrest (70) is fixedly arranged on the frame (10).