Conveniently Operated Assembly Vehicle Transportation Device

Abstract

The present invention provides a convenient-to-operate assembly vehicle transportation device, which relates to the field of transportation vehicles and includes a transportation vehicle body and a hook assembly body; the hook assembly body includes a fixed seat and a transportation pin assembly; the fixed seat is fixed on the transportation vehicle body; the fixed seat includes an automatic clamping jaw; the transportation pin assembly includes a transportation pin shaft; the automatic clamping jaw has an open state and a closed state; after the transportation pin shaft moves into the open-state automatic clamping jaw, the automatic clamping jaw can automatically switch to the closed state to limit the transportation pin shaft. The convenient-to-operate assembly vehicle transportation device provided by the present invention solves the problem of cumbersome connection steps between the transportation vehicle and the assembly vehicle in the prior art and can facilitate the connection between the transportation vehicle and the assembly vehicle.

Description

Technical Field

[0001] The present invention relates to the technical field of transport vehicles, and specifically refers to an assembly vehicle transport device that is convenient to operate. Background Art

[0002] An assembly vehicle refers to a vehicle equipped with special tools and equipment and provided to maintenance workers in a movable form. In the prior art, for example, an assembly vehicle frame disclosed in Chinese Patent Application No. 202023079706.1 provides a specific structure and working principle of an assembly vehicle.

[0003] Existing assembly vehicles are usually manually pushed. To save labor, some assembly vehicles are combined with a power system, such as an existing AGV cart that can be used as a transport vehicle (AGV is an unmanned transport vehicle equipped with an automatic guiding device such as electromagnetic or optical. AGV can travel along a specified guiding path, has safety protection and various transfer functions, and is an important device in the field of modern industrial automation and intelligence). A support frame is directly set on the AGV, so that the AGV can be used as a self-driving assembly vehicle after transformation, such as a fuel cell system assembly vehicle disclosed in Chinese Patent Application No. 202223553703.6.

[0004] However, an assembly vehicle is essentially a moving tool, and most of the processing processes of the moving parts on the assembly vehicle are not carried out on the assembly vehicle, but the parts need to be removed from the assembly vehicle for processing. Then, during the process of removing the parts from the assembly vehicle, this assembly vehicle can only remain stationary, and the power system of the assembly vehicle cannot work during this period. In addition, since the demand for different parts in different production links is different, directly equipping the assembly vehicle with a power structure will result in different types of assembly vehicles required in different links, and the power system itself is costly. Equipping enough assembly vehicles will increase the production cost of the workshop (i.e., the purchase cost of the assembly vehicle and the maintenance cost of the assembly vehicle).

[0005] To make a transport vehicle drive an assembly vehicle to move, a hook structure that cooperates with the assembly vehicle needs to be set on the transport vehicle. In the prior art, for example, an AGV traction hook recognition device and a traction AGV disclosed in Chinese Patent Application No. 201720578608.1 have a hook, which can allow a pallet truck (equivalent to the above-mentioned assembly vehicle) to be hung on the AGV through this hook, so as to realize the transport vehicle driving the pallet truck to move.

[0006] However, when connecting and disconnecting the AGV and the assembly vehicle with the above-mentioned comparative documents, the operations are very cumbersome. First, it is necessary to align the bottom plate 42 with the holes on the towing hook 5, and then insert the towing pin 44 into the aligned holes. The operations of aligning the holes and passing the pin shaft through the two aligned holes at the same time are cumbersome. Therefore, the connection process between the transport vehicle and the assembly vehicle is cumbersome. Summary of the Invention

[0007] In view of the above technical problems, the convenient-to-operate assembly vehicle transport device provided by the present invention can facilitate the connection between the transport vehicle and the assembly vehicle.

[0008] To achieve the above object, the technical solution adopted by the present invention is as follows:

[0009] The convenient-to-operate assembly vehicle transport device provided by the present invention includes a transport vehicle body and a hook assembly body; the hook assembly body includes a fixed seat and a transport pin assembly; the fixed seat is fixed on the transport vehicle body; the fixed seat includes an automatic gripper; the transport pin assembly includes a transport pin shaft; the automatic gripper includes an open state and a closed state; after the transport pin shaft moves into the automatic gripper in the open state, the automatic gripper can automatically switch to the closed state to limit the transport pin shaft.

[0010] The convenient-to-operate assembly vehicle transport device provided by the present invention preferably further includes a bottom plate; the automatic gripper includes a left gripper, a right gripper, a spring, and a positioning component; the left gripper is rotatably fixed on the bottom plate; the right gripper is rotatably fixed on the bottom plate; the left gripper and the right gripper are connected by the spring; during the rotation of the left gripper relative to the bottom plate and the rotation of the right gripper relative to the bottom plate, the automatic gripper switches between the open state and the closed state; when the left gripper and the right gripper are only affected by the stretching of the spring, the automatic gripper is in the open state; abutting surfaces are provided on the left gripper and the right gripper; when the transport pin shaft moves towards the automatic gripper in the open state, the transport pin shaft will contact the abutting surfaces on the left gripper and the right gripper; when the transport pin shaft contacts the abutting surfaces, the transport pin shaft can push the left gripper and the right gripper to rotate relative to the bottom plate, and cause the spring to stretch and tighten until it rotates to the closed state of the automatic gripper; the positioning component is fixed on the bottom plate; the positioning component can lock and release the closed state of the automatic gripper.

[0011] The operationally convenient assembly vehicle transportation device provided by the present invention. Preferably, the positioning assembly includes a pedal, a fulcrum block, and two positioning pin shafts; the fixed seat further includes a positioning plate; a vertically extending first positioning hole is respectively formed on the left jaw and the right jaw; the pedal is rotatably fixed on the fulcrum block; the positioning pin shafts are fixed on the same side of the fulcrum block of the pedal; during the rotation of the pedal relative to the fulcrum block, the positioning pin shafts can move vertically; the positioning plate is fixed on the bottom plate; two second positioning holes are formed on the positioning plate; when the automatic jaws are in a closed state, during the vertical movement of the positioning pin shafts, the positioning pin shafts can simultaneously pass through the first positioning holes and the second positioning holes; the positioning pin shafts can pass through the first positioning holes and the second positioning holes from vertically above.

[0012] The operationally convenient assembly vehicle transportation device provided by the present invention. Preferably, the positioning plate is arranged above the automatic jaws; a guiding block is fixed on the positioning plate; two guiding holes penetrate vertically through the guiding block; the two positioning pin shafts can be slidably fixed through the guiding holes; during the vertical movement of the positioning pin shafts, they are always within the guiding holes; the upper ends of the positioning pin shafts are rotatably fixed to the pedal.

[0013] The operationally convenient assembly vehicle transportation device provided by the present invention. Preferably, the fulcrum block includes a fixed block and a hinge; the fixed block is fixed on the positioning plate; the fixed block and the pedal are rotatably fixed through the hinge with a horizontally arranged rotating shaft.

[0014] The operationally convenient assembly vehicle transportation device provided by the present invention. Preferably, the transportation pin assembly further includes an upper rotating plate, a lower rotating plate, and an assembly vehicle fixing plate; the upper rotating plate and the lower rotating plate are respectively rotatably fixed at both ends of the transportation pin shaft; both the upper rotating plate and the lower rotating plate are fixedly connected to the assembly vehicle fixing plate; a distance is left between the transportation pin shaft and the assembly vehicle fixing plate for the claw heads of the left jaw and the right jaw to pass through.

[0015] The above technical solutions have the following advantages or beneficial effects:

[0016] The present invention provides an assembly vehicle transportation device with convenient operation, which relates to the field of transportation vehicles and includes a transportation vehicle body and a hook assembly body; the hook assembly body includes a fixed seat and a transportation pin assembly; the fixed seat is fixed on the transportation vehicle body; the fixed seat includes an automatic gripper; the transportation pin assembly includes a transportation pin shaft; the automatic gripper includes an open state and a closed state; after the transportation pin shaft moves into the open-state automatic gripper, the automatic gripper can automatically switch to the closed state to limit the transportation pin shaft. The assembly vehicle transportation device with convenient operation provided by the present invention solves the problem of the cumbersome connection steps between the transportation vehicle and the assembly vehicle in the prior art and can facilitate the connection between the transportation vehicle and the assembly vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] By reading the detailed description of the non-limiting embodiments with reference to the following drawings, the present invention and its features, shapes and advantages will become more obvious. The same reference numerals indicate the same parts in all the drawings. The drawings are not deliberately drawn to scale, and the focus is on showing the gist of the present invention.

[0018] Figure 1 FIG. 9 is a schematic diagram of the overall structure of the assembly vehicle transportation device with convenient operation provided in Embodiment 1 of the present invention.

[0019] Figure 2 FIG. 13 is a schematic diagram of the structure of the hook assembly body of the assembly vehicle transportation device with convenient operation provided in Embodiment 1 of the present invention.

[0020] Figure 3 FIG. 17 is a schematic diagram of the structure of the fixed seat of the assembly vehicle transportation device with convenient operation provided in Embodiment 1 of the present invention.

[0021] Figure 4 FIG. 21 is a schematic diagram of the structure of the fixed seat of the assembly vehicle transportation device with convenient operation provided in Embodiment 1 of the present invention after removing the pedal.

[0022] Figure 5 FIG. 25 is a schematic diagram of the structure of the automatic gripper of the assembly vehicle transportation device with convenient operation provided in Embodiment 1 of the present invention.

[0023] Figure 6 FIG. 29 is a schematic diagram of the structure of the fixed seat of the assembly vehicle transportation device with convenient operation provided in Embodiment 1 of the present invention after fixing the transportation pin shaft.

[0024] Figure 7 FIG. 33 is a schematic diagram of the structure of the transportation pin assembly of the assembly vehicle transportation device with convenient operation provided in Embodiment 1 of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments may be combined with each other. It should be noted that the terms used in the present invention are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application.

[0026] The following will describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Therefore, the detailed description of the embodiments of the present invention provided in the following drawings is not intended to limit the scope of the claimed invention, but only represents the selected embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative work belong to the protection scope of the present invention.

[0027] Embodiment 1:

[0028] When the existing transport vehicle and the assembly vehicle are connected, the operation is not convenient, which is mainly reflected in the cumbersome operation of aligning the holes on the transport vehicle with the holes on the assembly vehicle and inserting the pin shaft into the two holes for fixing. To simplify these steps and facilitate the assembly of the transport vehicle and the assembly vehicle, thereby facilitating the user to connect the transport vehicle and the assembly vehicle and improving work efficiency, the operationally convenient assembly vehicle transport device provided in Embodiment 1 of the present invention is as Figures 1 to 7 shown, and includes a transport vehicle body 1 and a hook assembly body 2; the hook assembly body 2 includes a fixed seat 21 and a transport pin assembly 22; the fixed seat 21 is fixed on the transport vehicle body 1; the fixed seat 21 includes an automatic gripper 211; the transport pin assembly 22 includes a transport pin shaft 221; the automatic gripper 211 includes an open state and a closed state; after the transport pin shaft 221 moves into the open-state automatic gripper 211, the automatic gripper 211 can automatically switch to the closed state to limit the transport pin shaft 221.

[0029] When the convenient-to-operate assembly vehicle transportation device provided in Embodiment 1 of the present invention is in use, it is necessary to pre-fix the transportation pin assembly 22 on each assembly vehicle, so that the user can push the assembly vehicle to move the transportation pin shaft assembly 22 to cooperate with the fixed seat 21; when actually controlling the connection between the assembly vehicle and the transportation vehicle, the staff pushes the assembly vehicle, so that the transportation pin 221 moves towards the automatically-clamping jaw 211 in the open state (the automatically-clamping jaw 211 is a prior art, such as an automatically-clamping jaw for preventing pinching during shaft precision grinding disclosed in Chinese Patent Application No. 202122954906.5, which will not be elaborated here). Until the transportation pin 221 completely moves into the automatically-clamping jaw 211, the automatically-clamping jaw 211 automatically closes, thereby clamping and limiting the transportation pin 211; in the prior art, it is necessary to align two holes and then insert a pin to limit the two holes (the hole on the assembly vehicle and the hole on the transportation vehicle), so as to realize the rotatable fixation of the assembly vehicle and the pin, and the rotatable fixation of the transportation vehicle and the pin; the structure provided in this embodiment can more simply realize the rotatable connection between the assembly vehicle and the transportation vehicle (after the automatically-clamping jaw 211 limits the transportation pin 221, the limiting pin 221 can rotate along its own pin axis). The simplicity is reflected in that the automatically-clamping jaw 211 in the open state has a larger accommodation space than the hole of a fixed pin. During the process of the automatically-clamping jaw 211 switching to the closed state, it can drive and move the limiting pin 221, so as to move the fiber pin 221 to the designated position. Therefore, compared with the prior art, the device provided in this embodiment can more simply realize the rotatable connection between the assembly vehicle and the transportation vehicle. Therefore, the connection step between the transportation vehicle and the assembly vehicle is convenient, saving the connection time of the staff and improving the connection efficiency of the staff.

[0030] The convenient-to-operate assembly vehicle transportation device provided in the embodiment of the present invention solves the problem of cumbersome connection steps between the transportation vehicle and the assembly vehicle in the prior art, and can facilitate the connection between the transportation vehicle and the assembly vehicle.

[0031] To specifically implement the switching between the open state and the closed state of the automatic gripper 211, as a preferred solution, in this embodiment, the fixed seat 21 further includes a bottom plate 212; the automatic gripper 211 includes a left gripper 2111, a right gripper 2112, a spring 2113, and a positioning component 3; the left gripper 2111 is rotatably fixed on the bottom plate 212; the right gripper 2112 is rotatably fixed on the bottom plate 212; the left gripper 2111 and the right gripper 2112 are connected by the spring 2113; during the process of the left gripper 2111 rotating relative to the bottom plate 212 and the right gripper 2112 rotating relative to the bottom plate, the automatic gripper 211 switches between the open state and the closed state; when the left gripper 2111 and the right gripper 2112 are only affected by the stretching of the spring 2113, the automatic gripper 211 is in the open state; abutting surfaces are provided on the left gripper 2111 and the right gripper 2112; when the transport pin 221 moves towards the open-state automatic gripper 211, the transport pin 221 will contact the abutting surfaces on the left gripper 2111 and the right gripper 2112; when the transport pin 221 contacts the abutting surface, the transport pin 221 can push the left gripper 2111 and the right gripper 2112 to rotate relative to the bottom plate, and cause the spring 2113 to stretch and become taut until it rotates to the closed state of the automatic gripper 211; the positioning component 3 is fixed on the bottom plate 212; the positioning component 3 can lock and release the closed state of the automatic gripper 211. When it is necessary to connect and assemble the assembly vehicle and the transport vehicle, after the transport pin 221 moves to the open-state automatic gripper 211, the transport pin 221 will contact the abutting surface and push the left gripper 2111 and the right gripper 2112 to rotate relative to the bottom plate 212, so that the left gripper 2111 and the right gripper 2112 are tightened. At the same time, the spring 2113 will be stretched. At this time, by controlling the positioning component 3 to lock the states of the left gripper 2111 and the right gripper 2112 (that is, controlling the left gripper 2111 and the right gripper 2112 to be fixed relative to the bottom plate 212 and unable to rotate), the limit of the automatic gripper 211 for the transport pin 221 is realized; when it is necessary to separate the assembly vehicle and the transport vehicle, by controlling the positioning component 3 to release the locking state of the left gripper 2111 and the right gripper 2112, both the left gripper 2111 and the right gripper 2112 will rotate relative to the bottom plate 212 due to the spring transportation, so that the left gripper 2111 and the right gripper 2112 are restored to the open state of the automatic gripper 211, and the transport pin 221 can be separated from the open-state automatic gripper 211.

[0032] To specifically implement the functions of locking and loosening the left jaw 2111 and the right jaw 2112 of the positioning component 3, as a preferred solution, in this embodiment, the positioning component 3 includes a pedal 31, a fulcrum block 32, and two positioning pin shafts 33; the fixed seat 21 further includes a positioning plate 213; a first positioning hole 2114 extending in the vertical direction is respectively formed on the left jaw 2111 and the right jaw 2113; the pedal 31 is rotatably fixed on the fulcrum block 32; the positioning pin shafts 33 are fixed on the same side of the pedal 31 and the fulcrum block 32; during the rotation of the pedal 31 relative to the fulcrum block 32, the positioning pin shafts 33 can move in the vertical direction; the positioning plate 213 is fixed on the bottom plate 212; two second positioning holes are formed on the positioning plate 213; when the automatic jaw 211 is in the closed state, during the vertical movement of the positioning pin shafts 33, the positioning pin shafts 33 can simultaneously pass through the first positioning hole 2114 and the second positioning hole; the positioning pin shafts 33 can pass through the first positioning hole 2114 and the second positioning hole from above in the vertical direction.The connection structure between the assembly vehicle and the transport vehicle body 1, namely the transport pin assembly 22 and the fixed seat 21, is usually arranged below. This is to lower the center of gravity so that the transport vehicle body 1 can stably transport the assembly vehicle (for example, an AGV traction hook recognition device and a traction AGV disclosed in Chinese Patent Application No. 201720578608.1, which sets the connection structure below. In this embodiment, the fixed seat 21 is also arranged below the transport vehicle body 1. The transport pin assembly 22 on the assembly vehicle is connected to the fixed seat 21 and is set at the same height. Different from the prior art which can only play a traction effect, the transport vehicle body 1 in this embodiment itself also has the function of transporting items. When the staff needs to assemble the items on the assembly vehicle, they can use the general tools carried on the transport vehicle body 1 for assembly). Therefore, in this embodiment, a pedal 31 is provided to facilitate the staff to control the positioning component 3 by stepping on it with their feet. The staff steps on the pedal 31, causing the pedal 31 to rotate relative to the fulcrum block 32, thereby realizing the vertical movement of the positioning pin 33. During the vertical movement of the positioning pin 33, it can insert into and pass through the first positioning hole 2114 and the second positioning hole. When the positioning pin 33 simultaneously passes through the first positioning hole 2114 and the second positioning hole, the position of the first positioning hole 2114 is restricted, so that the left clamping jaw 2111 and the right clamping jaw 2112 cannot rotate relative to the bottom plate 212 (the rotation axes of the left clamping jaw 2111, the right clamping jaw 2112 and the bottom plate are vertical, and the first positioning hole 2114 is opened on the left clamping jaw 2111 and the right clamping jaw 2112. When the pin 33 fixes the position of the first positioning hole 2114, the left clamping jaw 2111 and the right clamping jaw 2112 will be restricted from rotating), so that the automatic clamping jaw 211 is stable in the closed state. When it is necessary to separate the assembly vehicle from the transport vehicle body 1, the staff can step on the pedal 31. The pedal 31 rotates relative to the fulcrum block 32, and the end of the pedal 31 fixed with the positioning pin 33 tilts up, so that the positioning pin 33 is lifted vertically upward, so that the positioning pin 33 passes out of the first positioning hole 2114. Without the positioning pin 33 blocking in the first positioning hole 2114, the left clamping jaw 2111 and the right clamping jaw 2112 are no longer restricted from rotating by the positioning pin 33. After the transport pin 221 is taken out, the left clamping jaw 2111 and the right clamping jaw 2112 rotate due to the stretching of the spring 2113, so that the bullet clamping jaw 211 switches to the open state.

[0033] To specifically implement that after the pedal 31 rotates relative to the fulcrum block 32, the positioning pin shaft 33 remains vertical. As a preferred solution, in this embodiment, the positioning plate 213 is arranged above the automatic gripper 211; a guiding block 214 is fixed on the positioning plate 213; two guiding holes 2141 penetrate through the guiding block 214 in the vertical direction; the two positioning pin shafts 33 can slide through the guiding holes 2141 and be fixed; during the vertical movement of the positioning pin shaft 33, it is always within the guiding hole 2141; the upper end of the positioning pin shaft 33 is rotatably fixed to the pedal 31. The positioning pin shaft 33 is always within the guiding hole 2141 of the guiding block 214. Since the guiding hole 2141 is arranged in the vertical direction, the positioning pin shaft within the guiding hole 2141 always remains vertical. And the positioning pin shaft 33 is rotatably connected to the pedal 31. Therefore, when the positioning pin shaft 33 moves in the vertical direction, the positioning pin shaft 33 automatically rotates with respect to the pedal 31.

[0034] To specifically implement the rotatable fixation of the pedal 31 relative to the fulcrum block 32 and the vertical movement of the positioning pin shaft 33 relative to the guiding hole of the guiding block 214. As a preferred solution, in this embodiment, the fulcrum block 32 includes a fixed block 321 and a hinge 322; the fixed block 321 is fixed on the positioning plate 213; the fixed block 321 and the pedal 31 are rotatably fixed through a hinge 322 with a horizontal axis. The hinge 322 is a prior art. The hinge 322 has an axis, and the structures fixed on the two plates of the hinge 322 can rotate relative to the axis of the hinge. The pedal 31 and the fixed block 321 are respectively fixed on the hinge 322 and rotate through the hinge, thereby realizing the rotation of the pedal 31 and the fixed block 321. The fixed block 321 is fixed on the positioning plate 213, and the guiding block 214 is fixed on the positioning plate 213. Therefore, when the pedal 31 rotates, it will rotate relative to the positioning plate 213, and the guiding block 214 remains stationary relative to the positioning plate 213. The positioning pin shaft 33 rotatably fixed at the end of the pedal 31 can move relative to the positioning plate 213, that is, the vertical movement of the positioning pin shaft 33 relative to the guiding hole of the guiding block 214 is realized.

[0035] For the convenience of fixing the pin shaft assembly 22 to the assembly vehicle during transportation, in this embodiment, the transportation pin assembly 22 further includes an upper rotating plate 222, a lower rotating plate 223, and an assembly vehicle fixing plate 224; the upper rotating plate 222 and the lower rotating plate 223 are respectively rotatably fixed at both ends of the transportation pin shaft 221; both the upper rotating plate 222 and the lower rotating plate 223 are fixedly connected to the assembly vehicle fixing plate 224; a distance is left between the transportation pin shaft 221 and the assembly vehicle fixing plate 224 for the claw heads of the left claw 2111 and the right claw 2112 to pass through. Fixed by the assembly vehicle fixing plate 224 to the assembly vehicle, the height of the transportation pin shaft 221 is made consistent with the height of the automatic claw. The upper rotating plate 222 and the lower rotating plate 223 are used to maintain the rotatable connection with the transportation pin shaft 221, so that the automatic claw 211 can directly fix the transportation pin shaft 221 instead of simply restricting the transportation pin shaft 221. The connection structure between the automatic claw 211 and the transportation pin shaft 221 is simple. The distance left between the transportation pin shaft 221 and the assembly vehicle fixing plate 224 for the claw heads of the left claw 2111 and the right claw 2112 to pass through is for the convenience of the automatic claw 211 to clamp the transportation pin shaft 221.

[0036] In summary, the present invention provides an assembly vehicle transportation device with convenient operation, which relates to the field of transportation vehicles and includes a transportation vehicle body and a hook assembly body; the hook assembly body includes a fixed seat and a transportation pin assembly; the fixed seat is fixed on the transportation vehicle body; the fixed seat includes an automatic claw; the transportation pin assembly includes a transportation pin shaft; the automatic claw includes an open state and a closed state; after the transportation pin shaft moves into the automatic claw in the open state, the automatic claw can automatically switch to the closed state to limit the transportation pin shaft. The assembly vehicle transportation device with convenient operation provided by the present invention solves the problem of the cumbersome connection steps between the transportation vehicle and the assembly vehicle in the prior art and can facilitate the connection between the transportation vehicle and the assembly vehicle.

[0037] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structural transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. An assembly vehicle transportation device with convenient operation, characterized in that, It includes a transport vehicle body and a hook assembly body; The hook assembly body includes a fixed seat and a transport pin assembly; the fixed seat is fixed on the transport vehicle body; The fixed seat includes an automatic gripper; the transport pin assembly includes a transport pin shaft; The automatic gripper includes an open state and a closed state; After the transport pin shaft moves into the open-state automatic gripper, the automatic gripper can automatically switch to the closed state to limit the transport pin shaft; The fixed seat further includes a bottom plate; the automatic gripper includes a left gripper, a right gripper, a spring and a positioning assembly; The left gripper is rotatably fixed on the bottom plate; the right gripper is rotatably fixed on the bottom plate; the left gripper and the right gripper are connected by the spring; During the process of the left gripper rotating relative to the bottom plate and the right gripper rotating relative to the bottom plate, the automatic gripper switches between the open state and the closed state; When the left gripper and the right gripper are only affected by the stretching of the spring, the automatic gripper is in the open state; The left gripper and the right gripper are provided with abutting surfaces; when the transport pin shaft moves towards the open-state automatic gripper, the transport pin shaft will contact the abutting surfaces on the left gripper and the right gripper; when the transport pin shaft contacts the abutting surfaces, the transport pin shaft can push the left gripper and the right gripper to rotate relative to the bottom plate, and make the spring stretch and tighten until it rotates to the closed state of the automatic gripper; The positioning assembly is fixed on the bottom plate; the positioning assembly can lock and release the closed state of the automatic gripper; The positioning assembly includes a pedal, a fulcrum block and two positioning pin shafts; the fixed seat further includes a positioning plate; the left gripper and the right gripper are respectively provided with a first positioning hole extending in the vertical direction; The pedal is rotatably fixed on the fulcrum block; the positioning pin shafts are fixed on the same side of the fulcrum block of the pedal; during the process of the pedal rotating relative to the fulcrum block, the positioning pin shafts can move in the vertical direction; The positioning plate is fixed on the bottom plate; two second positioning holes are provided on the positioning plate; When the automatic gripper is in the closed state, during the process of the positioning pin shafts moving in the vertical direction, the positioning pin shafts can simultaneously pass through the first positioning hole and the second positioning hole; the positioning pin shafts can pass out of the first positioning hole and the second positioning hole from vertically above; The positioning plate is arranged above the automatic gripper; A guiding block is fixed on the positioning plate; two guiding holes penetrate vertically through the guiding block; the two positioning pin shafts can be slidably fixed through the guiding holes; During the process of the positioning pin shafts moving in the vertical direction, they are always in the guiding holes; The upper end of the positioning pin shaft is rotatably fixed to the pedal.

2. The conveniently operable assembly vehicle transportation device according to claim 1, wherein, The fulcrum block includes a fixed block and a hinge; the fixed block is fixed on the positioning plate; the fixed block and the pedal are rotatably fixed by the hinge with a horizontally arranged rotating shaft.

3. The convenient-to-operate assembly vehicle transportation device according to claim 1, wherein, The transportation pin assembly further includes an upper rotating plate, a lower rotating plate, and a fixing plate of the assembly vehicle; the upper rotating plate and the lower rotating plate are respectively rotatably fixed at two ends of the transportation pin shaft; both the upper rotating plate and the lower rotating plate are fixedly connected to the fixing plate of the assembly vehicle; A distance is left between the transportation pin shaft and the fixing plate of the assembly vehicle for the claw heads of the left claw and the right claw to pass through.

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