Rear platform turnover type platform car

Abstract

The invention provides a rear platform turnover type platform car, and relates to the technical field of platform cars, the rear platform turnover type platform car comprises a car body, a front platform, a rear platform and a front fixing device, the front platform is connected to the upper portion of the car body, the end, facing the car tail, of the front platform is connected with the car tail, and the rear platform is connected with the front fixing device; one end of the rear platform is hinged to the tail of the vehicle body, the other end of the rear platform is used for being in lap joint with the ground, and the front fixing device is used for being hooked to a transition plate. The rear platform is hinged to the vehicle tail, so that the overall length of the platform vehicle is shortened, the platform vehicle can run on a lane more conveniently, the rear platform is not prone to being damaged, the safety of the platform vehicle is improved, connection between the front fixing device and the transition plate is more stable, and a vehicle can run between the front platform and the transition plate stably; the front platform and the transportation bin transition plate are not prone to being damaged due to passing of automobiles, and the using safety of the platform car is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of platform vehicles, and in particular to a rear platform flipping type platform vehicle. Background Art

[0002] Automobiles are usually transported by rail. Due to the large size of automobiles, special automobile loading and unloading equipment is required to achieve automobile loading and unloading. The specific operation is to load the car on the ground into the transport vehicle on the railway track through the automobile loading and unloading equipment. After the transport vehicle arrives at the destination, the car in the transport vehicle is unloaded to the ground through the automobile loading and unloading equipment. Existing automobile loading and unloading equipment includes a vehicle body and a transportation platform arranged on the top of the vehicle body, and the rear end of the transportation platform extends to the ground. When in use, the vehicle body is moved in front of the transport vehicle so that the front end of the transportation platform is aligned with the transition plate of the transport compartment of the transport vehicle, and the car drives along the transportation platform from the ground and enters the transport compartment through the transition plate. In order to make the automobile loading and unloading process safer, the transportation platform is set longer to reduce the angle between the end of the transportation platform resting on the ground and the ground, which causes the transportation platform to be too long, affecting the driving of the platform car. During the driving process, it is easy to cause bumps on the transportation platform, resulting in safety accidents. There is no other connecting structure between the transition plate of the transport compartment compartment and the transportation platform. When the car passes the connecting position between the transportation platform and the transition plate, it is easy to cause bumps, which is easy to cause damage to the transportation platform and the transition plate, and the safety is poor. Summary of the invention

[0003] The problem to be solved by the present invention is how to improve the safety of the platform vehicle.

[0004] To this end, the present invention provides a rear platform flip-type platform vehicle, comprising a vehicle body, a front platform, a rear platform, and a front fixing device, wherein the front platform is connected above the vehicle body, the rear end of the front platform is connected to the rear end of the vehicle body, the front end of the front platform is used to abut against the rear end of the transition plate, one end of the rear platform is hinged to the rear end of the vehicle body, and the other end of the rear platform is used to overlap on the ground, the front fixing device comprises a locking plate, a rotating shaft seat and a lifting assembly, the rotating shaft seat is connected to the front end of the front platform, the rotating shaft seat extends along the width direction of the vehicle body, the locking plate is provided with a strip hole extending along the front and rear direction of the vehicle body, the rotating shaft on the rotating shaft seat is penetrated by the strip hole, and is used to move in the strip hole along the front and rear direction of the vehicle body, one end of the lifting assembly is connected to the front platform, and the other end abuts against the lower surface of the rear end of the locking plate, the lifting assembly is used to drive the locking plate to rotate around the rotating shaft, and the front end of the locking plate is a hook-type structure, and the hook-type structure is used to hook on the transition plate.

[0005] Optionally, the front platform includes a horizontal section and an inclined section, the locking plate is connected to the front section of the horizontal section, the horizontal section extends in a horizontal direction, the front end of the inclined section is connected to the rear end of the horizontal section, the rear end of the inclined section extends toward the rear of the vehicle and tilts downward.

[0006] Optionally, the rear platform flip-type station vehicle also includes a lifting device, which includes an upper connecting seat, a lower connecting seat and a telescopic rod, the upper connecting seat is connected to the lower surface of the rear end of the horizontal section, the lower connecting seat is connected to the upper surface of the vehicle body, the two ends of the telescopic rod are respectively hinged to the upper connecting seat and the lower connecting seat, and the rear end of the inclined section is rotatably connected to the rear of the vehicle in a vertical plane.

[0007] Optionally, the lifting device also includes a limit rod, a limit sleeve is provided on the circumferential side of the fixed end of the telescopic rod, and the limit sleeve is provided with a limit hole that passes through between the upper and lower surfaces of the limit sleeve, and the limit hole is in the same extension direction as the telescopic rod, and the upper end of the limit rod is provided with an extension plate extending toward the upper connecting seat, and the extension plate is connected to the upper connecting seat, and one end of the limit rod away from the extension plate is passed through the limit hole and is slidably connected to the limit sleeve.

[0008] Optionally, the rear platform flip type platform vehicle also includes an intermediate support column extending in the vertical direction, the lower end of the intermediate support column is connected to the middle part of the vehicle body along its length direction, the upper end of the intermediate support column is abutted against the lower surface of the inclined section, and the intermediate support seat is used to extend and retract in the vertical direction.

[0009] Optionally, the two rear platforms are arranged on both sides of the rear of the vehicle along the width direction of the vehicle body.

[0010] Optionally, the rear platform flip type station vehicle also includes a pin shaft and a front pillar, and the side surface of the front end of the vehicle body is provided with a telescopic leg extending in the vertical direction, and the telescopic leg is used to extend to support on the ground, and a support seat is provided on the telescopic leg, and a plurality of first connecting holes are provided on the support seat in the vertical direction, and a plurality of second connecting holes are provided on the front pillar in the vertical direction, and both ends of the pin shaft are respectively inserted into any second connecting hole and any first connecting hole, and the front pillar extends in the vertical direction, and the upper end of the front pillar is against the lower end of the front platform.

[0011] Optionally, there are two pins, and both ends of the two pins are respectively inserted into any two of the second connecting holes and any two of the first connecting holes.

[0012] Optionally, the lifting assembly includes a lifting rod and a lifting seat, the lifting seat is connected to the side of the front platform, a threaded hole penetrating in the vertical direction is opened on the lifting seat, and an external thread is provided on the outer surface of the lifting rod and is threadedly connected to the threaded hole.

[0013] Optionally, a pressing block is provided below the locking plate, and the upper end of the lifting rod abuts against the lower surface of the pressing block.

[0014] Compared with the prior art, the rear platform flip-type platform vehicle of the present invention has the following beneficial effects:

[0015] The invention provides a vehicle body, wherein the front direction of the vehicle is the front end, the rear direction of the vehicle is the rear end, and a front platform is provided above the vehicle body, the rear end of the front platform is connected to the rear end of the vehicle, the front end of the front platform and the transition plate are approximately at the same height, the rear platform is hinged to the rear end of the vehicle body, and the rear platform can rotate around the Y-axis to leave the ground, which is convenient for the vehicle body to drive the front platform and the rear platform to travel and move on the ground. When working, the rear platform rotates to overlap the ground. At this time, the upper surface of the front platform and the upper surface of the rear platform are connected as a whole, which is convenient for the car to travel and pass from the front platform and the rear platform and move between the ground and the transport warehouse. When not working, the rear platform rotates upward to be away from the ground, shortening the overall length of the platform car, making it more convenient for the platform car to travel on the lane, not easy to cause damage to the rear platform, and improving the safety of the platform car; a front fixing device is provided at the front end of the front platform, the rotating shaft seat on the front fixing device is connected to the front end of the front platform, the rotating shaft seat and the rotating shaft thereon extend along the Y-axis direction, a locking plate is provided, and a strip hole extending along the front and rear directions of the vehicle body is provided on the locking plate, and the locking plate is The locking plate can move relative to the rotating shaft along the X-axis direction, and can adapt to transition plates of different sizes on the transport warehouse, thereby improving the applicability of the platform car. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of a rear platform flip-type platform vehicle according to an embodiment of the present invention;

[0017] Figure 2 This is a second structural schematic diagram of the rear platform flip-type platform vehicle according to an embodiment of the present invention;

[0018] Figure 3 This is a third structural schematic diagram of the rear platform flip-type platform vehicle according to an embodiment of the present invention;

[0019] Figure 4 It is a structural schematic diagram of a front fixing device according to an embodiment of the present invention;

[0020] Figure 5 It is a structural schematic diagram of a lifting device according to an embodiment of the present invention;

[0021] Figure 6 It is a schematic diagram of the connection structure between the front support and the telescopic legs according to an embodiment of the present invention.

[0022] Description of reference numerals:

[0023] 1-body; 11-telescopic legs; 2-front platform; 21-horizontal section; 22-inclined section; 3-rear platform; 4-front fixing device; 41-locking plate; 411-strip hole; 412-hook structure; 413-pressing block; 42-swivel seat; 43-lifting assembly; 431-lifting rod; 432-lifting seat; 5-lifting device; 51-upper connecting seat; 52-lower connecting seat; 53-telescopic rod; 54-limiting rod; 541-extension plate; 55-limiting sleeve; 61-front pillar; 62-support seat; 63-first connecting hole; 64-pin shaft; 65-second connecting hole; 7-middle supporting column; 8-transition plate. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0025] It should be noted that in the description of the present invention, the directions or positional relationships indicated by “up”, “down”, “left”, “right”, “top”, “bottom”, “front”, “back”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, it should not be understood as limiting the scope of protection of the present invention.

[0026] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0027] Moreover, although the present invention is described with reference to specific embodiments, it should be understood that these embodiments are merely examples of the principles and applications of the present invention. It should therefore be understood that many modifications may be made to the exemplary embodiments and that other arrangements may be designed without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that the features of the various dependent claims and herein may be combined in a manner not described in the original claims. It may also be understood that the features described in conjunction with the individual embodiments may be used in other embodiments.

[0028] To solve the above problems, Figures 1 to 4 As shown, the present invention provides a rear platform flip type platform vehicle, comprising a vehicle body 1, a front platform 2, a rear platform 3, and a front fixing device 4, wherein the front platform 2 is connected above the vehicle body 1, the rear end of the front platform 2 is connected to the rear end of the vehicle body 1, the front end of the front platform 2 is used to abut against the rear end of the transition plate 8, one end of the rear platform 3 is hinged to the rear end of the vehicle body 1, and the other end of the rear platform 3 is used to overlap on the ground, the front fixing device 4 comprises a locking plate 41, a rotating shaft seat 42 and a lifting assembly 43, the rotating shaft seat 42 is connected to the front end of the front platform 2, and the rotating shaft seat 42 Extending along the width direction of the vehicle body 1, the locking plate 41 is provided with a strip hole 411 extending along the front and rear direction of the vehicle body 1, the rotating shaft on the rotating shaft seat 42 is penetrated by the strip hole 411, and is used to move in the strip hole 411 along the front and rear direction of the vehicle body 1, one end of the lifting component 43 is connected to the front platform 2, and the other end is abutted against the lower surface of the rear end of the locking plate 41, the lifting component 43 is used to drive the locking plate 41 to rotate around the rotating shaft, the front end of the locking plate 41 is a hook-type structure 412, and the hook-type structure 412 is used to hook on the transition plate 8.

[0029] In this embodiment, by setting the vehicle body 1, the front direction of the vehicle is the front end, and the rear direction of the vehicle is the rear end, and a front platform 2 is set above the vehicle body 1, the rear end of the front platform 2 is connected to the rear end of the vehicle, and the front end of the front platform 2 is roughly at the same height as the transition plate 8. The rear platform 3 is hinged at the rear of the vehicle body 1, and the rear platform 3 can rotate around the Y axis to leave the ground, so that the vehicle body 1 can drive the front platform 2 and the rear platform 3 to travel and move on the ground. When working, the rear platform 3 rotates to overlap the ground. At this time, the upper surface of the front platform 2 and the upper surface of the rear platform 3 are connected as a whole, which is convenient for the car to move from the front platform 2 and the rear platform 3. The rear platform 3 is rotated upward to be away from the ground when not in operation, shortening the overall length of the platform vehicle, making it easier for the platform vehicle to travel on the lane, and not easily causing damage to the rear platform 3, thereby improving the safety of the platform vehicle; a front fixing device 4 is arranged at the front end of the front platform 2, a rotating shaft seat 42 on the front fixing device 4 is connected to the front end of the front platform 2, the rotating shaft seat 42 and the rotating shaft thereon extend along the Y-axis direction, a locking plate 41 is arranged, and a strip hole 411 extending along the front and rear direction of the vehicle body 1 is provided on the locking plate 41, and the locking plate 41 is sleeved through the strip hole 411 On the rotating shaft of the rotating shaft seat 42, the locking plate 41 can move relative to the rotating shaft along the front and rear directions of the vehicle body 1 through the strip hole 411. The front end surface of the front platform 2 is also provided with a lifting component 43. The upper end of the lifting component 43 abuts against the lower surface of the rear end of the locking plate 41. The lifting component 43 can change its position in the Z-axis direction. When the lifting component 43 moves up and down, it can drive the locking plate 41 to rotate around the rotating shaft. The front end of the locking plate 41 is a hook-shaped structure 412. When working, the vehicle body 1 moves to the warehouse opening of the transport warehouse, the front end of the front platform 2 abuts against the rear end of the transition plate 8, and the locking plate 41 is manually moved and rotated so that the locking plate 4 The hook-shaped structure 412 at the front end is hooked on the transition plate 8. At this time, the lifting assembly 43 is controlled to move upward, driving the locking plate 41 to rotate counterclockwise, pressing the locking plate 41 against the transition plate 8, so that the connection between the front platform 2, the locking plate 41 and the transition plate 8 is more stable, and the car can travel smoothly between the front platform 2 and the transition plate 8. The front platform 2 and the transition plate 8 of the transport warehouse are not easily damaged by the passing of the car, which improves the safety of the platform car. The locking plate 41 can move relative to the rotating shaft along the X-axis direction and adapt to the transition plates 8 of different sizes on the transport warehouse, thereby improving the applicability of the platform car.

[0030] Specifically, Figure 3 As shown, the front fixing device 4 can be two groups, which are respectively arranged on the two ends of the front platform 2 along the Y-axis direction. The two groups of front fixing devices 4 are connected to the transition plate 8 at the same time, further improving the stability of the connection between the front platform 2 and the transport warehouse transition plate 8.

[0031] Alternatively, if Figure 1As shown, the front platform 2 includes a horizontal section 21 and an inclined section 22, the locking plate 41 is connected to the front section of the horizontal section 21, the horizontal section 21 extends in the horizontal direction, the front end of the inclined section 22 is connected to the rear end of the horizontal section 21, and the rear end of the inclined section 22 extends toward the rear of the vehicle and tilts downward.

[0032] In this embodiment, the front platform 2 is divided into a horizontal section 21 and an inclined section 22 connected to each other, wherein the horizontal section 21 faces the positive direction of the X-axis, and the inclined section 22 faces the negative direction of the X-axis. The horizontal section 21 extends in the plane where the X-axis and the Y-axis are located, and the end of the inclined section 22 facing the negative direction of the X-axis is inclined toward the negative direction of the Z-axis. When working, the front platform 2 and the transition plate 8 are aligned in the horizontal plane, and the car can pass between the front platform 2 and the transition plate 8 more smoothly, reducing the damage caused by the car to the front platform 2 and the transition plate 8. The inclined section 22 is easy to connect with the rear platform 3, so that the car can pass.

[0033] Alternatively, if Figure 1 and Figure 5 As shown, the rear platform flip-type platform vehicle also includes a lifting device 5, which includes an upper connecting seat 51, a lower connecting seat 52 and a telescopic rod 53. The upper connecting seat 51 is connected to the lower surface of the rear end of the horizontal section 21, and the lower connecting seat 52 is connected to the upper surface of the vehicle body 1. The two ends of the telescopic rod 53 are respectively hinged to the upper connecting seat 51 and the lower connecting seat 52, and the rear end of the inclined section 22 is rotatably connected to the rear of the vehicle in a vertical plane.

[0034] In this embodiment, the rear end of the inclined section 22 is rotatably connected to the rear end of the vehicle so that the inclined section 22 can rotate around the Y-axis relative to the rear end of the vehicle, and a lifting device 5 is arranged between the rear end of the horizontal section 21 and the vehicle body 1. The upper connecting seat 51 and the lower connecting seat 52 of the lifting device 5 are respectively connected to the lower surface of the rear end of the horizontal section 21 and the upper surface of the vehicle body 1. A telescopic rod 53 is arranged between the upper connecting seat 51 and the lower connecting seat 52. The upper and lower ends of the telescopic rod 53 are respectively hinged to the upper connecting seat 51 and the lower connecting seat 52. The telescopic rod 53 is telescopic along its length direction, driving the horizontal section 21 to drive the inclined section 22 to rotate around the Y-axis relative to the rear end of the vehicle, so as to adjust the height of the front platform 2 in the Z-axis direction, so that the front platform 2 can correspond to transport bins with different heights, thereby improving the applicability of the platform vehicle.

[0035] Specifically, the telescopic rod 53 may be an electric push rod.

[0036] Alternatively, if Figure 5As shown, the lifting device 5 also includes a limiting rod 54, and a limiting sleeve 55 is sleeved on the circumferential side of the fixed end of the telescopic rod 53. The limiting sleeve 55 is provided with a limiting hole that passes through the upper and lower surfaces of the limiting sleeve 55, and the limiting hole is in the same extension direction as the telescopic rod 53. The upper end of the limiting rod 54 is provided with an extension plate 541 extending toward the upper connecting seat 51, and the extension plate 541 is connected to the upper connecting seat 51. One end of the limiting rod 54 away from the extension plate 541 is penetrated by the limiting hole and is slidably connected to the limiting sleeve 55.

[0037] In this embodiment, the telescopic rod 53 includes a fixed end and a telescopic end, the telescopic end and the fixed end are slidably connected, the fixed end is hinged to the lower connecting seat 52, and the telescopic end is hinged to the upper connecting seat 51. A limiting sleeve 55 is sleeved on the peripheral side of the fixed end, and a limiting hole is also provided on the limiting sleeve 55. The extension direction of the limiting hole is the same as the telescopic direction of the telescopic rod 53. A limiting rod 54 is passed through the limiting hole. The extension direction of the limiting rod 54 is also the same as the telescopic direction of the telescopic rod 53. An extension plate 541 is provided at the upper end of the limiting rod 54. The extension plate 541 extends toward the upper connecting seat 51 and is connected to the upper connecting seat 51. 1 connection, the telescopic rod 53 is extended and retracted, driving the front platform 2 to drive the upper connecting seat 51 to move, driving the extension plate 541 and the limiting rod 54 to move, the limiting rod 54 slides in the limiting hole, the upper end of the limiting rod 54 is connected to the front platform 2 through the upper connecting seat 51, and the lower end of the limiting rod 54 is connected to the fixed end of the telescopic rod 53 through the limiting sleeve 55, so as to limit the telescopic direction of the telescopic rod 53, so as to ensure that the telescopic end of the telescopic rod 53 can only be extended and retracted along the extension direction of the fixed end of the telescopic rod 53, and prevent the telescopic rod 53 from being affected by the hinged rotation with the upper connecting seat 51 and the lower connecting seat 52.

[0038] Alternatively, if Figure 1 As shown, the rear platform flip type platform vehicle also includes an intermediate support column 7 extending in the vertical direction, the lower end of the intermediate support column 7 is connected to the middle part of the vehicle body 1 along its length direction, the upper end of the intermediate support column 7 is abutted against the lower surface of the inclined section 22, and the intermediate support column 7 is used to extend and retract in the vertical direction.

[0039] In this embodiment, an intermediate support column 7 extending along the Z-axis direction is arranged at the middle position of the vehicle body 1 in the X-axis direction. The intermediate support column 7 can be extended and retracted along the Z-axis direction. The upper end of the intermediate support column 7 is against the lower surface of the inclined section 22. The intermediate support column 7 can support the inclined section 22 so that the inclined section 22 can be tiltably connected above the vehicle body 1. The length of the intermediate support column 7 is extended and retracted as the lifting device 5 is extended and retracted, so that the upper end of the intermediate support column 7 is always supported on the lower surface of the inclined section 22, thereby improving the stability of the connection between the inclined section 22 and the vehicle body 1.

[0040] Alternatively, if Figure 3As shown, the two rear platforms 3 are arranged on both sides of the rear of the vehicle along the width direction of the vehicle body 1 .

[0041] In this embodiment, the size of the rear platform 3 along the Y-axis direction can correspond to the width of the automobile wheel. By providing two rear platforms 3, the two rear platforms 3 are arranged along the Y-axis direction, corresponding to the two wheels in the width direction of the automobile respectively. The automobile can drive in or out of the front platform 2 through the two rear platforms 3, reducing the size and weight of the rear platform 3, making it easier to drive the rear platform 3 to rotate around the Y-axis, while saving materials.

[0042] Alternatively, if Figure 6 As shown, the rear platform flip type platform vehicle also includes a pin shaft 64 and a front pillar 61. The side surface of the front end of the vehicle body 1 is provided with a telescopic support leg 11 extending in the vertical direction. The telescopic support leg 11 is used to extend to support on the ground. A support seat 62 is provided on the telescopic support leg 11. A plurality of first connecting holes 63 are provided on the support seat 62 in the vertical direction. The front pillar 61 is provided with a plurality of second connecting holes 65 in the vertical direction. The two ends of the pin shaft 64 are respectively inserted into any one of the second connecting holes 65 and any one of the first connecting holes 63. The front pillar 61 extends in the vertical direction, and the upper end of the front pillar 61 is against the lower end of the front platform 2.

[0043] In this embodiment, a telescopic leg 11 is provided on the side wall of the front end of the vehicle body 1, and the bottom end of the telescopic leg 11 is telescopic in the Z-axis direction. When working, the telescopic leg 11 is extended and supported on the ground to improve the stability of the platform vehicle. A support seat 62 is provided at the upper end of the telescopic leg 11. A plurality of first connection holes 63 are opened on the side of the support seat 62 along the Z-axis direction. The first connection holes 63 extend in the horizontal plane. A front support column 61 is provided, and a plurality of second connection holes 65 are opened on the side wall of the front support column 61 along the Z-axis direction. A pin is provided. The shaft 64 and the two ends of the pin shaft 64 are respectively inserted into any first connecting hole 63 and any second connecting hole 65 to connect the front support 61 with the telescopic support leg 11. The upper end of the front support 61 is against the lower surface of the front platform 2 to support the front platform 2. By changing the position of the first connecting hole 63 and the second connecting hole 65 inserted by the pin shaft 64, the position of the front support 61 in the Z-axis direction is adjusted according to the telescopic condition of the lifting device 5, so that the upper end of the front support 61 always supports the front platform 2, making the connection between the front platform 2 and the vehicle body 1 more stable.

[0044] Alternatively, if Figure 6 As shown, there are two pin shafts 64 , and both ends of the two pin shafts 64 are respectively inserted into any two of the second connecting holes 65 and any two of the first connecting holes 63 .

[0045] In this embodiment, by providing two pin shafts 64, one end of the two pin shafts 64 is respectively inserted into any two second connecting holes 65, and the other ends of the two pin shafts 64 are inserted into two first connecting holes 63 located at the same height as the two second connecting holes 65, the connection between the front pillar 61 and the support seat 62 and the telescopic leg 11 is made more stable, and the front pillar 61 is limited to ensure that the front pillar 61 extends along the Z-axis direction, which can better support the front platform 2.

[0046] Alternatively, if Figure 4 As shown, the lifting assembly 43 includes a lifting rod 431 and a lifting seat 432. The lifting seat 432 is connected to the side of the front platform 2. A threaded hole is provided on the lifting seat 432 and passes through in the vertical direction. The outer surface of the lifting rod 431 is provided with an external thread and is threadedly connected to the threaded hole.

[0047] In this embodiment, a lifting seat 432 is set on the side of the front platform 2, and a threaded hole is opened on the lifting seat 432 along the Z-axis direction. A lifting rod 431 is set in the threaded hole. The external thread on the side of the lifting rod 431 is threadedly connected with the threaded hole. The lifting rod 431 can be rotated around the Z-axis to adjust the height of the lifting rod 431, so that the lifting rod 431 is abutted against the lower surface of the locking plate 41.

[0048] Alternatively, if Figure 4 As shown, a pressing block 413 is provided below the locking plate 41 , and the upper end of the lifting rod 431 abuts against the lower surface of the pressing block 413 .

[0049] In this embodiment, a clamping block 413 is provided below the rear end of the locking plate 41, and the area of ​​the clamping block 413 in the plane where the X-axis and the Y-axis are located is relatively large. The upper end of the lifting rod 431 directly abuts against the clamping block 413, and the upward force of the lifting rod 431 is transmitted to the locking plate 41 through the clamping block 413, thereby expanding the force-bearing area of ​​the locking plate 41, making the force on the locking plate 41 more uniform, and making the connection between the locking plate 41 and the transition plate 8 more stable.

[0050] Although the present invention is disclosed as above, the protection scope of the present invention is not limited thereto. Those skilled in the art may make various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications will fall within the protection scope of the present invention.

Claims

1. A rear platform flip-type platform vehicle, characterized in that: The vehicle comprises a vehicle body (1), a front platform (2), a rear platform (3), and a front fixing device (4), wherein the front platform (2) is connected above the vehicle body (1), the rear end of the front platform (2) is connected to the rear end of the vehicle body (1), the front end of the front platform (2) is used to abut against the rear end of a transition plate (8), one end of the rear platform (3) is hinged to the rear end of the vehicle body (1), and the other end of the rear platform (3) is used to overlap the ground, the front fixing device (4) comprises a locking plate (41), a rotating shaft seat (42) and a lifting assembly (43), the rotating shaft seat (42) is connected to the front end of the front platform (2), and the rotating shaft seat (42) is provided with a plurality of holes along the width of the vehicle body (1). The locking plate (41) is provided with a strip-shaped hole (411) extending in the front-rear direction of the vehicle body (1); the rotating shaft on the rotating shaft seat (42) is passed through the strip-shaped hole (411) and is used to move in the strip-shaped hole (411) along the front-rear direction of the vehicle body (1); one end of the lifting component (43) is connected to the front platform (2), and the other end is in contact with the lower surface of the rear end of the locking plate (41); the lifting component (43) is used to drive the locking plate (41) to rotate around the rotating shaft; the front end of the locking plate (41) is a hook-shaped structure (412), and the hook-shaped structure (412) is used to hook onto the transition plate (8).

2. The rear platform flip-type platform vehicle according to claim 1, characterized in that: The front platform (2) comprises a horizontal section (21) and an inclined section (22); the locking plate (41) is connected to the front section of the horizontal section (21); the horizontal section (21) extends in a horizontal direction; the front end of the inclined section (22) is connected to the rear end of the horizontal section (21); the rear end of the inclined section (22) extends toward the rear of the vehicle and is inclined downward.

3. The rear platform flip-type platform vehicle according to claim 2, characterized in that: The vehicle also comprises a lifting device (5), the lifting device (5) comprising an upper connecting seat (51), a lower connecting seat (52) and a telescopic rod (53), the upper connecting seat (51) being connected to the lower surface of the rear end of the horizontal section (21), the lower connecting seat (52) being connected to the upper surface of the vehicle body (1), the two ends of the telescopic rod (53) being respectively hinged to the upper connecting seat (51) and the lower connecting seat (52), and the rear end of the inclined section (22) being rotatably connected to the rear end of the vehicle in a vertical plane.

4. The rear platform flip-type platform vehicle according to claim 3, characterized in that: The lifting device (5) further comprises a limiting rod (54), a limiting sleeve (55) being sleeved on the peripheral side of the fixed end of the telescopic rod (53), a limiting hole penetrating between the upper and lower surfaces of the limiting sleeve (55) being opened on the limiting sleeve (55), the limiting hole extending in the same direction as the extension direction of the telescopic rod (53), an extension plate (541) extending in the direction of the upper connecting seat (51) being provided at the upper end of the limiting rod (54), the extension plate (541) being connected to the upper connecting seat (51), and an end of the limiting rod (54) away from the extension plate (541) being passed through the limiting hole and being slidably connected to the limiting sleeve (55).

5. The rear platform flip-type platform vehicle according to claim 3, characterized in that: It also includes an intermediate support column (7) extending in the vertical direction, the lower end of the intermediate support column (7) is connected to the middle part of the vehicle body (1) along its length direction, the upper end of the intermediate support column (7) is abutted against the lower surface of the inclined section (22), and the intermediate support seat (62) is used to extend and retract in the vertical direction.

6. The rear platform flip-type platform vehicle according to claim 1, characterized in that: The two rear platforms (3) are arranged on both sides of the rear of the vehicle along the width direction of the vehicle body (1).

7. The rear platform flip-type platform vehicle according to claim 1, characterized in that: It also includes a pin shaft (64) and a front support pillar (61). The side surface of the front end of the vehicle body (1) is provided with a telescopic leg (11) extending in the vertical direction. The telescopic leg (11) is used to extend to support on the ground. A support seat (62) is provided on the telescopic leg (11). A plurality of first connection holes (63) are provided on the support seat (62) in the vertical direction. The front support pillar (61) is provided with a plurality of second connection holes (65) in the vertical direction. The two ends of the pin shaft (64) are respectively inserted into any of the second connection holes (65) and any of the first connection holes (63). The front support pillar (61) extends in the vertical direction. The upper end of the front support pillar (61) abuts against the lower end of the front platform (2).

8. The rear platform flip-type platform vehicle according to claim 7, characterized in that: There are two pin shafts (64), and two ends of the two pin shafts (64) are respectively inserted into any two of the second connection holes (65) and any two of the first connection holes (63).

9. The rear platform flip-type platform vehicle according to claim 1, characterized in that: The lifting assembly (43) comprises a lifting rod (431) and a lifting seat (432); the lifting seat (432) is connected to the side of the front platform (2); a threaded hole penetrating in the vertical direction is provided on the lifting seat (432); an external thread is provided on the outer surface of the lifting rod (431) and is threadedly connected to the threaded hole.

10. The rear platform flip type platform vehicle according to any one of claims 1 to 9, characterized in that: A pressing block (413) is provided below the locking plate (41), and the upper end of the lifting rod (431) abuts against the lower surface of the pressing block (413).

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