CN112537736A

CN112537736A - Transport device

Info

Publication number: CN112537736A
Application number: CN202011537027.6A
Authority: CN
Inventors: 李孝先; 邓云海; 刘如峰
Original assignee: Sany Automobile Manufacturing Co Ltd
Current assignee: Hunan Province Ground Unmanned Equipment Engineering Research Center Co ltd
Priority date: 2020-12-23
Filing date: 2020-12-23
Publication date: 2021-03-23

Abstract

The invention provides a transport device comprising: a vehicle body; the lifting device comprises a portal frame assembly, and the portal frame assembly is rotatably arranged on the vehicle body; the fork assembly is detachably connected with the portal frame assembly, the vehicle body is provided with a bearing surface, the portal frame assembly rotates to a first position, the length direction of the portal frame assembly is parallel to the bearing surface, the portal frame assembly rotates to a second position, and the length direction of the portal frame assembly is perpendicular to the bearing surface. The transportation equipment provided by the invention comprises the vehicle body and the lifting device which is rotationally connected with the vehicle body, integrates the functions of a carrying forklift and the transportation vehicle, and can realize free conversion between the cargo loading and unloading functions of the lifting device and the cargo transporting function of the vehicle body by turning the lifting device, so that the transportation equipment can directly carry cargos to the transportation equipment from a truck, can realize long-distance transportation of cargos, saves the processes of manual carrying and short-distance carrying, and is beneficial to improving the working efficiency.

Description

Transport device

Technical Field

The invention relates to the technical field of carrying machinery, in particular to transportation equipment.

Background

At present, hoisting and transporting equipment such as a moped is various and widely used for loading, unloading and transporting goods, but the conventional moped cannot directly transport goods from a truck to the moped for short-distance transportation, still needs to be transported by manpower, and wastes time and labor.

Disclosure of Invention

In order to improve at least one of the above technical problems, an object of the present invention is to provide a transportation apparatus.

In order to achieve the above object, the technical solution of the present invention provides a transportation apparatus, including: a vehicle body; the lifting device comprises a portal frame assembly, and the portal frame assembly is rotatably arranged on the vehicle body; the fork assembly is detachably connected with the portal frame assembly, the vehicle body is provided with a bearing surface, the portal frame assembly rotates to a first position, the length direction of the portal frame assembly is parallel to the bearing surface, the portal frame assembly rotates to a second position, and the length direction of the portal frame assembly is perpendicular to the bearing surface.

According to the transportation equipment provided by the embodiment of the invention, the forklift for carrying goods and the transportation vehicle for transporting goods are integrated, and the turnover mechanism is arranged to enable the portal frame assembly and the fork frame assembly to be rotatably connected, so that the conversion between the forklift state and the transportation state is realized, and the transportation equipment can directly carry the goods from the truck to the transportation equipment and transport the goods. Compared with the prior art, the goods are unloaded from the truck through the forklift, and then the goods on the fork blades of the forklift are carried to the transportation equipment through manpower, the transportation equipment provided by the technical scheme does not need to carry the goods to the transportation equipment from the forklift, so that the step of carrying by manpower is omitted, time and labor are saved, and the working efficiency is improved.

Specifically, the transportation device includes a vehicle body and a lifting device. The vehicle body is mainly used for transporting goods in a long distance or a short distance in the horizontal direction, and the driving mode of the vehicle body can be electric driving or hydraulic driving. Furthermore, the vehicle body is provided with a bearing surface, and the bearing surface is a plane playing a supporting role. In general, the bearing surface is disposed horizontally, but the bearing surface may have a certain inclination angle according to actual requirements.

In addition, the lifting device is mainly used for loading and unloading goods in a vertical direction. Further, the lifting device includes a mast assembly and a fork assembly, the mast assembly being rotatably disposed on the body, i.e., the mast assembly is rotatable relative to the body. The fork assembly is detachably connected with the frame assembly, so that the assembly and the disassembly are convenient, and particularly, the fork assembly is connected with the frame assembly through a bolt; alternatively, the two can be removably connected by other structures.

Further, the mast assembly is rotatable between a first position and a second position. When the portal assembly rotates to the first position, the length direction of the portal assembly is parallel to the bearing surface, if the bearing surface is a horizontal plane, the portal assembly is in a horizontal state, and the transportation equipment is in a transportation state at the moment. The goods can directly be placed on the mast subassembly, and the mast subassembly plays the effect of support. In addition, the fork assembly and the portal frame assembly are detachably connected, so that after the fork assembly is taken down by a worker, the portal frame assembly is rotated to a certain inclination angle, and the portal frame assembly can form a cargo transportation platform; or, be equipped with transport mechanism on the mast subassembly, for example the conveyer belt, with the back of staff's taking off the fork subassembly, the mast subassembly that is in the horizontality also can play conveying platform's effect.

When the portal assembly rotates to the second position, the length direction of the portal assembly is perpendicular to the bearing surface, if the bearing surface is a horizontal plane, the portal assembly is in a vertical state, and the transportation equipment is in a forklift state at the moment. Through the cooperation use of portal frame subassembly and fork subassembly, lift the goods. Specifically, the fork subassembly can slide along mast assembly's length direction, and then load and unload the goods.

Through rotating the portal subassembly, can switch the transportation state and the fork truck state of transportation equipment, convenient and fast has just enlarged the application scope of transportation equipment. Further, the driving mode for rotating the gantry assembly is electrically driven; alternatively, the gantry assembly is driven to rotate in a hydraulic driving mode.

It is worth explaining that, the transportation equipment that this technical scheme provided regards portal frame assembly as the freight platform to can save additionally to set up the freight platform on the automobile body, help reduce cost, and the freight platform can prolong the length of automobile body, can transport bigger goods.

In addition, the gantry assembly occupies a large space in a vertical state, and the space occupied by the gantry assembly can be reduced through rotation, so that the transportation equipment can be suitable for transportation and operation environments in narrow spaces, and has wider application scenes.

In addition, the transportation equipment in the technical scheme provided by the invention can also have the following additional technical characteristics:

in the above technical solution, the transportation apparatus includes: the overturning shaft is arranged on one of the vehicle body and the gantry assembly, and the vehicle body and the gantry assembly are rotationally connected through the overturning shaft; and one end of the overturning oil cylinder is connected with the vehicle body, and the other end of the overturning oil cylinder is connected with the portal frame component, so that the portal frame component can rotate around the overturning shaft relative to the vehicle body.

In the technical scheme, one of the vehicle body and the portal frame assembly is provided with the sliding groove, and the turnover shaft is in sliding connection with the sliding groove so that the portal frame assembly can move in a translational manner relative to the vehicle body along the extending direction of the sliding groove.

In the above technical solution, the transportation apparatus includes: the overturning shaft is arranged on one of the vehicle body and the gantry assembly, and the vehicle body and the gantry assembly are rotationally connected through the overturning shaft; the overturning motor is arranged on one of the trolley body and the portal frame assembly and is connected with the overturning shaft so that the portal frame assembly can rotate around the overturning shaft relative to the trolley body.

In any of the above technical solutions, the gantry assembly includes an outer gantry and an inner gantry, the inner gantry is slidably connected with the outer gantry and can be retracted into the outer gantry; wherein, outer portal and automobile body rotate to be connected, and the size of outer portal and the size adaptation of automobile body.

In any of the above technical solutions, the vehicle body includes: the chassis frame is rotatably connected with the door frame assembly and comprises a driving wheel; the control handle is connected with the chassis frame and is connected with a steering wheel; the lifting device comprises universal wheels; wherein, steering wheel, drive wheel and universal wheel set up along the front and back direction interval of haulage equipment.

In the above technical scheme, the chassis frame is provided with the stretcher interface, and the stretcher interface is arranged at one end, close to the portal component, of the chassis frame.

In any one of the above technical schemes, the chassis frame comprises a wheel cover, the wheel cover is arranged above the driving wheel, and the fork assembly can be placed on the wheel cover.

In any one of the above technical solutions, the rotation connection point of the mast assembly and the vehicle body is located at the middle position of the mast assembly.

In any of the above technical solutions, the fork assembly and the frame assembly are bolted.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic structural diagram of a transportation device according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a transportation device according to an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a transportation device according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a transportation device according to an embodiment of the present invention.

Wherein, the correspondence between the reference numbers and the part names in fig. 1 to 4 is:

100: a transportation device; 10: a vehicle body; 11: a chassis frame; 111: a stretcher port; 112: a wheel cover; 12: a drive wheel; 13: a control handle; 14: a steering wheel; 15: a bearing surface; 20: a lifting device; 21: a gantry assembly; 211: an outer gantry; 212: an inner gantry; 213: a chute; 22: a fork assembly; 23: a universal wheel; 31: a turning shaft; 32: and (5) turning over the oil cylinder.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

Transport apparatus 100 according to some embodiments of the present invention is described below with reference to fig. 1-4.

Some embodiments of the present application provide a transport apparatus 100 comprising a vehicle body 10 and a lifting device 20.

Example 1

As shown in fig. 1 and 2, the transportation apparatus 100 of the present embodiment includes a vehicle body 10 and a lifting device 20 connected to each other. The lifting device 20 includes a mast assembly 21 and a fork assembly 22. The mast assembly 21 is disposed in rotatable communication with the vehicle body 10 such that the transport apparatus 100 is capable of operating in both a forklift state and a transport state in response to a change in position of the mast assembly 21.

In the forklift state, as shown in fig. 1, the mast assembly 21 is in an upright position and is attached to the front end of the vehicle body 10, and the fork assembly 22 is capable of moving up and down the mast assembly 21 to load and unload cargo, such as from a truck or the like.

In the forklift state, as shown in fig. 2, the fork assembly 22 is detachable from the mast assembly 21, and the body 10 includes a platform, the pivoted mast assembly 21 is in a horizontal state and is horizontally disposed on the platform of the body 10, the mast assembly 21 forms a cargo transportation platform for placing cargo to be loaded and unloaded, and the body 10 may be an electric vehicle or a cart for transporting cargo.

The transportation equipment 100 that this embodiment provided can carry out the loading and unloading and the transportation work of goods to freely change between two kinds of operating condition, need not carry the goods to transportation equipment 100 from fork truck on, saved and leaned on the manpower to carry the goods to transportation equipment 100 on from fork truck step, labour saving and time saving helps improving work efficiency. Especially, the last one in transportation is the most critical link, the transportation device 100 provided in this embodiment can conveniently get in and out the keyboard in a narrow space, and has a large transportation capability and a large lifting capability, and can transport goods from a truck to the vehicle body 10 and transport the goods in a short distance, thereby being safe and reliable.

The vehicle body 10 may be an electric vehicle or a trolley.

In another embodiment, as shown in fig. 1 and 2, a transportation apparatus 100 includes a vehicle body 10 and a lifting device 20. The vehicle body 10 is mainly used for transporting goods horizontally for a long distance or a short distance, and the vehicle body 10 may be driven by electric or hydraulic power. Further, the vehicle body 10 has a bearing surface 15, and the bearing surface 15 is a plane for supporting. Usually, the carrying surface 15 is disposed horizontally, but the carrying surface 15 may have a certain inclination angle according to actual requirements.

The lifting device 20 is mainly used for vertically loading and unloading the cargo. Further, the lifting device 20 includes a mast assembly 21 and a fork assembly 22, the mast assembly 21 being rotatably mounted to the vehicle body 10, i.e., the mast assembly 21 is rotatable relative to the vehicle body 10. The fork assembly 22 is detachably connected with the frame assembly 21, so that the mounting and the dismounting are convenient, and particularly, the fork assembly 22 is connected with the frame assembly 21 through bolts; alternatively, the two can be removably connected by other structures.

Further, the mast assembly 21 is rotatable between a first position and a second position. When the mast assembly 21 rotates to the first position, the length direction of the mast assembly 21 is parallel to the bearing surface 15, and if the bearing surface 15 is a horizontal plane, the mast assembly 21 is in a horizontal state, and at this time, the transportation device 100 is in a transportation state. The cargo may be placed directly on the mast assembly 21 with the mast assembly 21 serving as a support. In addition, because the fork assembly 22 is detachably connected with the portal frame assembly 21, after the fork assembly 22 is taken down by a worker, the portal frame assembly 21 is rotated to a certain inclination angle, and the portal frame assembly 21 can form a cargo transportation platform; alternatively, the mast assembly 21 may be provided with a transport mechanism, such as a conveyor belt, so that the mast assembly 21 in the horizontal position may also serve as a transport platform after the fork assembly 22 is removed by the worker.

When the mast assembly 21 rotates to the second position, the length direction of the mast assembly 21 is perpendicular to the bearing surface 15, and if the bearing surface 15 is a horizontal plane, the mast assembly 21 is in a vertical state, and at this time, the transportation device 100 is in a forklift state. The cargo is lifted by the cooperative use of the gate frame assembly 21 and the fork assembly 22. Specifically, the fork assembly 22 can slide along the length of the mast assembly 21 to load and unload cargo.

Through rotating portal assembly 21, can switch over the transportation state and the fork truck state of haulage equipment 100, convenient and fast has just enlarged haulage equipment 100's application scope. Further, the driving mode for the rotation of the gantry assembly 21 is electric driving; alternatively, the gantry assembly 21 may be driven to rotate in a hydraulic manner.

Example 2

Further, the transportation apparatus 100 provided in the present embodiment includes a turnover mechanism, and the vehicle body 10 and the lifting device 20 are rotatably connected by the turnover mechanism.

In some embodiments, as shown in FIG. 1, the flipper includes a flipper shaft 31 and a flipper cylinder 32. The roll-over shaft 31 is used to provide a fulcrum to allow the body 10 and the mast assembly 21 to rotate about the roll-over shaft 31, and the roll-over cylinder 32 powers the rotation of the mast assembly 21 by telescoping. The tilt cylinder 32 pushes the mast assembly 21 during extension to rotate the mast assembly 21 counterclockwise about the tilt axis 31 from the upright position to the horizontal position, thereby moving the transport apparatus 100 from the forklift position to the transport position. Likewise, the tilt cylinder 32 pulls the mast assembly 21 during the shortening process to rotate the mast assembly 21 clockwise about the tilt shaft 31 from the horizontal state to the vertical state, thereby changing the transporting apparatus 100 from the transporting state to the forklift state to switch between the transporting state and the forklift state. The control mode is simple, safe and reliable. Wherein, the quantity of tilting mechanism can be a plurality of to improve portal assembly 21 pivoted stability.

In some embodiments, as shown in fig. 3, the mast assembly 21 is provided with a slide slot 213, and the turning shaft 31 is slidably connected to the slide slot 213 so that the mast assembly 21 can move in translation relative to the vehicle body 10 along the extending direction of the slide slot 213.

Through setting up spout 213, can adjust the position of portal subassembly 21 for automobile body 10 under the horizontal state, when the length of portal subassembly 21 is longer, can place the focus of portal subassembly 21 on automobile body 10 to can improve portal subassembly 21 and can improve the job stabilization nature under the transportation state of haulage equipment 100.

In some embodiments, the trip shaft 31 is located at a mid-portion of the mast assembly 21.

Through the position of reasonable setting trip shaft 31, make trip shaft 31 can be close to the centre of gravity position of mast subassembly 21 to make the rotation of mast subassembly 21 easier, laborsaving. Meanwhile, the position of the turning shaft 31 can be adjusted through the sliding groove 213, so that the turning shaft 31 is closer to the center of gravity of the gantry assembly 21, and the rotating process is easier and more labor-saving.

In other embodiments, the flipping mechanism comprises a flipping shaft 31 and a flipping motor. The roll-over shaft 31 is used to provide a fulcrum for the body 10 and the mast assembly 21 to rotate about the roll-over shaft 31, and the roll-over motor is connected to the roll-over shaft 31 to provide power for the rotation of the mast assembly 21 through the rotation of the output shaft of the roll-over motor. The turnover mechanism further comprises a speed reducer used for improving the rotating torque.

Example 3

In any of the above embodiments, as shown in fig. 4, the gantry assembly 21 is a double gantry, and includes an inner gantry 212 and an outer gantry 211, wherein the inner gantry 212 is slidably connected to the outer gantry 211 and can be retracted within the outer gantry 211. Wherein the size of the outer mast 211 is adapted to the size of the vehicle body 10 such that the outer mast 211 can be horizontally placed on the vehicle body 10.

The gantry assembly 21 provided by the embodiment has a higher lifting height in the up-down direction, and the inner gantry 212 is retracted into the outer gantry 211, so that the length of the transportation device 100 in the front-back direction can be reduced, that is, the lifting capability of the transportation device 100 provided by the embodiment is ensured, and the transportation device 100 can conveniently work in a narrow space, thereby having a wider application scene.

Example 4

In any of the above embodiments, as shown in fig. 4, the vehicle body 10 includes: chassis frame 11, operating handle 13. Wherein, the chassis frame 11 is rotatably connected with the portal frame component 21, and the portal frame component 21 is horizontally placed on the chassis frame when in a horizontal state. The chassis frame 11 comprises a driving wheel 12, and the driving wheel 12 is used for providing power for driving the transportation equipment 100; the steering handle 13 is connected to the chassis frame 11 and connected to the steering wheel 14, and the steering handle 13 can control the steering wheel 14, thereby controlling the traveling direction of the transportation apparatus 100. In some cases, the handlebar 13 is also connected to the driving wheel 12, enabling to control the deceleration and the stopping of the driving wheel 12. In addition, the lifting device 20 includes universal wheels 23, and the steering wheels 14, the driving wheels 12, and the universal wheels 23 are provided at intervals in the front-rear direction of the transportation apparatus 100. Make the transportation equipment 100 that this embodiment provided not only can travel under the transport state, also can carry out the short distance under the fork truck state and travel, conveniently carry out work such as short-distance transportation, the transportation of goods.

In some embodiments, as shown in fig. 2, the chassis frame 11 is provided with a stretcher interface 111, and the stretcher interface 111 is provided at an end of the chassis frame 11 near the mast assembly 21.

The transportation equipment 100 that this embodiment provided is provided with stretcher interface 111, and stretcher interface 111 is towards the place ahead to when making to be in the horizontality after mast assembly 21 rotates, can be at the front end of chassis frame 11 connection stretcher, provide short distance transportation service for wounded etc. thereby expanded transportation equipment 100's service function, made transportation equipment 100 have more extensive use scene.

Of course, it is understood that the form of the stretcher interface 111 is not limited, and the chassis frame 11 may be detachably connected to the stretcher by bolts, pins, latches, plugs, etc.

In some embodiments, as shown in fig. 2, the chassis frame 11 includes a wheel cover 112, the wheel cover 112 being disposed over the drive wheel 12, the fork assembly 22 being capable of being placed on the wheel cover 112. In the embodiment, the wheel cover 112 is provided, so that the top surface of the wheel cover 112 forms a platform for placing the fork assembly 22, and a stable placing space is provided for the fork assembly 22 in the transportation state of the transportation device 100.

In some embodiments, as shown in fig. 3, the vehicle body 10 is provided with a locking member, and the locking member can fix the gantry assembly 21 when the gantry assembly 21 is in a horizontal state after being rotated, so as to limit the movement of the gantry assembly 21, thereby improving the stability of the gantry assembly 21 in a transportation state. The locking piece can be a bolt, a nut, a lock catch and the like. Of course, the locking member may be a through hole through which a cable is passed to fix the door frame assembly 21 by the cable in a binding manner.

The following describes the transportation device 100 provided in the present application in some embodiments.

Currently, in the field, the material transportation and transportation in the short distance of the last kilometer is still carried by manpower, so that there is a need for a transportation device 100, such as a multifunctional moped, to replace the manpower transportation and transportation, and to improve the efficiency.

To this end, an embodiment of the present application provides a power-driven power-assisted vehicle for running and lifting, which includes a chassis frame 11, a driving wheel 12, a steering wheel 14, a universal wheel 23, and a lifting device 20 (including a lifting gantry and a lifting mechanism). The transportation device 100 provided by the embodiment can conveniently enter and exit the keyboard in a narrow space, and has the advantages of large transportation capacity, lifting capacity, safety and reliability.

The transporting apparatus 100 provided in the present embodiment integrates the cargo-handling forklift and the truck for cargo transportation, so that the cargo-handling forklift forms the lifting device 20 of the transporting apparatus 100, and the truck for cargo transportation forms the body 10 of the transporting apparatus 100. The forklift state and the transportation state of the transportation equipment 100 are changed through a turnover mechanism (such as a turnover shaft 31 and a turnover oil cylinder 32); goods can be carried to the fork assembly 22 through the goods carrying forklift, and then the portal assembly 21 is turned over through the turning oil cylinder 32 to become a transport vehicle for long-distance transportation.

The gantry assembly 21 comprises an inner gantry 212 and an outer gantry 211, the inner gantry 212 is retracted into the outer gantry 211, and the outer gantry 211 is turned to be horizontal through the turning cylinder 32 and can be used as a cargo transportation platform.

Wherein the forklift state of the transportation device 100 is sufficient to transport goods from the truck to the ground or the transportation device 100 for short distance transportation. The transport state of the transport apparatus 100 may enable the mast assembly 21 to function as a cargo transport platform for placement of cargo.

In addition, a stretcher interface 111 is reserved on the chassis frame 11, so that the transportation equipment 100 can also be used as a transportation tool for wounded persons in short distance.

In summary, the transportation device 100 provided in this embodiment includes a vehicle body 10 and a lifting device 20 rotatably connected to the vehicle body 10, and integrates functions of transporting a forklift and a transportation vehicle, and the cargo loading and unloading function of the lifting device 20 and the cargo transporting function of the vehicle body 10 can be freely switched by turning over the lifting device 20, so that the transportation device 100 can directly transport cargos from a truck to the transportation device 100, and can transport cargos over a long distance, thereby eliminating processes of manual transportation and short-distance transportation, and improving work efficiency.

In the present invention, the terms "first", "second", and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless expressly limited otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "front", "rear", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or unit must have a specific direction, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A transportation device (100), characterized in that, comprising:

body (10);

A lifting device (20), the lifting device (20) comprising:

a gantry assembly (21), the gantry assembly (21) being rotatably provided on the vehicle body (10);

a fork assembly (22), wherein the fork assembly (22) is detachably connected to the mast assembly (21),

Wherein, the vehicle body (10) has a bearing surface (15), the gantry assembly (21) is rotated to a first position, and the length direction of the gantry assembly (21) is parallel to the bearing surface (15) , the gantry assembly (21) is rotated to the second position, and the length direction of the gantry assembly (21) is perpendicular to the bearing surface (15).

2. The transport device (100) according to claim 1, further comprising:

A turning shaft (31) is provided on one of the vehicle body (10) and the gantry assembly (21), and the vehicle body (10) and the gantry assembly (21) pass through the turning The shaft (31) is rotatably connected;

An overturning oil cylinder (32), one end of the overturning oil cylinder (32) is connected with the vehicle body (10), and the other end of the overturning oil cylinder (32) is connected with the gantry assembly (21), so that the The door frame assembly (21) is capable of rotating around the turning shaft (31) relative to the vehicle body (10).

3. The transport device (100) according to claim 2, characterized in that,

One of the vehicle body (10) and the door frame assembly (21) is provided with a chute (213), and the turning shaft (31) is slidably connected with the chute (213), so that all the The door frame assembly (21) is capable of translational movement relative to the vehicle body (10) along the extension direction of the chute (213).

4. The transport device (100) of claim 1, further comprising:

A turning motor is provided on one of the vehicle body (10) and the gantry assembly (21), and the turning motor is connected with the turning shaft (31), so that the gantry assembly ( 21) The vehicle body (10) can be rotated about the inversion shaft (31) relative to the vehicle body (10).

5. The transport device (100) according to any one of claims 1 to 4, characterized in that,

The door frame assembly (21) includes an outer door frame (211) and an inner door frame (212), the inner door frame (212) is slidably connected with the outer door frame (211), and can be retracted to the outer door frame (211). In the door frame (211);

Wherein, the outer mast (211) is rotatably connected with the vehicle body (10), and the size of the outer mast (211) is adapted to the size of the vehicle body (10).

6. The transport device (100) according to any one of claims 1 to 4, wherein the vehicle body (10) comprises:

a chassis frame (11), rotatably connected with the gantry assembly (21), and the chassis frame (11) includes a driving wheel (12);

a steering handle (13), connected with the chassis frame (11), and connected with a steering wheel (14);

The lifting device (20) includes a universal wheel (23);

Wherein, the steering wheel (14), the driving wheel (12) and the universal wheel (23) are arranged at intervals along the front-rear direction of the transportation device (100).

7. The transport device (100) according to claim 6, characterized in that,

The chassis frame (11) is provided with a stretcher interface (111), and the stretcher interface (111) is arranged on one end of the chassis frame (11) close to the door frame assembly (21).

8. The transport device (100) according to claim 6, characterized in that,

The chassis frame (11) includes a wheel cover (112), the wheel cover (112) is provided above the driving wheel (12), and the fork assembly (22) can be placed on the wheel cover (112). 112) on.

9. The transport device (100) according to any one of claims 1 to 4, characterized in that,

The rotational connection point of the gantry assembly (21) and the vehicle body (10) is located in the middle of the gantry assembly (21).

10. The transportation device (100) according to claim 1, wherein the fork assembly (22) and the gantry assembly (21) are connected by bolts.