Rear platform turnover type platform car
By designing a rear-platform tilting platform car, and utilizing the hinged and tilting structure between the front platform and the transition plate, the problems of easy collision and unstable connection of the transport platform are solved, thereby improving the safety and applicability of the platform car.
Patent Information
- Application Number
- CN202520123619.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-17
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-01-17
AI Technical Summary
In existing vehicle loading and unloading equipment, the transport platform is too long and prone to collisions, and the connection between the transport platform and the transition plate is unstable, resulting in poor safety.
Design a rear-platform tilting platform vehicle. By setting a front platform and a rear platform on the vehicle body, the front platform is hinged to the transition plate, and the rear platform can be tilted. Combined with the front fixing device and lifting components, a stable connection between the front platform and the transition plate is achieved, improving safety.
Shortening the length of the platform car reduces the risk of collisions, improves the connection stability between the transport platform and the transition plate, ensures smooth passage of vehicles, and enhances safety and applicability.
Smart Images
Figure CN223836680U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of platform vehicle technology, and more specifically, to a rear-platform tilting platform vehicle. Background Technology
[0002] Cars are usually transported by rail. Due to their large size, specialized car loading and unloading equipment is required. The specific operation involves loading cars from the ground into transport vehicles on the railway tracks using the car loading and unloading equipment. After the transport vehicles arrive at their destination, the cars are then unloaded onto the ground using the car loading and unloading equipment. Existing vehicle loading and unloading equipment includes a vehicle body and a transport platform mounted on top of the vehicle body. The rear of the transport platform extends to the ground. During use, the vehicle body moves in front of the transport vehicle so that the front of the transport platform aligns with the transition plate at the transport compartment opening of the transport vehicle. The vehicle drives along the transport platform from the ground, passes through the transition plate, and enters the transport compartment. To make the loading and unloading process safer, the transport platform is often made quite long to reduce the angle between the end of the transport platform resting on the ground and the ground. This results in an excessively long transport platform, which affects the movement of the platform vehicle. During the journey, the transport platform is prone to collisions, leading to safety accidents. Furthermore, there is no other connecting structure between the transition plate at the transport compartment opening and the transport platform. When the vehicle passes through the connection point between the transport platform and the transition plate, it is prone to bumps, which can easily damage the transport platform and the transition plate, resulting in poor safety. Utility Model Content
[0003] The problem this invention aims to solve is how to improve the safety of platform cars.
[0004] Therefore, this utility model provides a rear platform tilting platform vehicle, including a vehicle body, a front platform, a rear platform, and a front fixing device. The front platform is connected above the vehicle body, and the rear end of the front platform is connected to the rear of the vehicle body. The front end of the front platform is used to abut against the rear end of a transition plate. One end of the rear platform is hinged to the rear of the vehicle body, and the other end of the rear platform is used to rest on the ground. The front fixing device includes a locking plate, a pivot seat, and a lifting assembly. The pivot seat is connected to the front end of the front platform and extends along the width direction of the vehicle body. The locking plate has a strip-shaped hole extending along the front-rear direction of the vehicle body. The pivot on the pivot seat passes through the strip-shaped hole and is used to move along the front-rear direction of the vehicle body within the strip-shaped hole. 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 pivot. The front end of the locking plate has a hook-shaped structure, which is used to hook onto 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, and the rear end of the inclined section extends towards the rear of the vehicle and is inclined downward.
[0006] Optionally, the rear platform tilting platform car 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 car body, and the two ends of the telescopic rod are respectively hinged to the upper connecting seat and the lower connecting seat. The rear end of the inclined section is rotatably connected to the rear of the car in a vertical plane.
[0007] Optionally, the lifting device further includes a limiting rod, a limiting sleeve is fitted around the fixed end of the telescopic rod, the limiting sleeve has a limiting hole that passes through the upper and lower surfaces of the limiting sleeve, the limiting hole is in the same direction as the extension of the telescopic rod, the upper end of the limiting rod has an extension plate that extends toward the upper connecting seat, the extension plate is connected to the upper connecting seat, and the end of the limiting rod away from the extension plate passes through the limiting hole and is slidably connected with the limiting sleeve.
[0008] Optionally, the rear platform tilting platform vehicle also includes a central support column extending vertically, the lower end of which is connected to the middle of the vehicle body along its length, the upper end of which abuts against the lower surface of the inclined section, and the central support column is used for vertical extension and retraction.
[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 tilting platform car also includes a pin and a front support column. The side of the front end of the car body is provided with a telescopic support leg extending in a vertical direction. The telescopic support leg is used to extend to support the ground. The telescopic support leg is provided with a support seat. The support seat is provided with a plurality of first connecting holes in a vertical direction. The front support column is provided with a plurality of second connecting holes in a vertical direction. The two ends of the pin are respectively inserted into any of the second connecting holes and any of the first connecting holes. The front support column extends in a vertical direction, and the upper end of the front support column abuts against the lower end of the front platform.
[0011] Optionally, there are two pins, and the two 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. The lifting seat has a threaded hole that runs vertically through it. The outer surface of the lifting rod has an external thread 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 beneficial effects of the rear platform tilting platform car of this utility model are:
[0015] This utility model features a vehicle body with the front end facing forward and the rear end facing backward. A front platform is positioned above the vehicle body, with its rear end connected to the rear end. The front end of the front platform is approximately at the same height as a transition plate. A rear platform is hinged to the rear of the vehicle body, allowing it to rotate around the Y-axis to lift off the ground. This facilitates movement of the vehicle body, including both the front and rear platforms, on the ground. During operation, the rear platform rotates to rest on the ground, connecting the upper surfaces of the front and rear platforms as a single unit, allowing the vehicle to pass over them and move between the ground and the transport compartment. When not in operation, the rear platform rotates upward to move away from the ground, shortening the overall length of the platform vehicle and making it easier for the vehicle to travel on the roadway. This also reduces the risk of damage to the rear platform and improves the safety of the platform vehicle. A front fixing device is installed at the front end of the front platform, with a pivot seat on the device connected to the front end of the front platform. The pivot seat and its pivot extend along the Y-axis. A locking plate is provided, with a strip-shaped hole extending along the front-rear direction of the vehicle body. The locking plate, fitted onto the rotating shaft of the rotating shaft seat through the slotted hole, can move relative to the rotating shaft along the front-rear direction of the vehicle body. A lifting assembly is also provided on the front end face of the front platform. The upper end of the lifting assembly abuts against the lower rear surface of the locking plate. The lifting assembly can change position in the Z-axis direction. When the lifting assembly moves up and down, it drives the locking plate to rotate around the rotating shaft. The front end of the locking plate has a hook-shaped structure. During operation, when the vehicle body moves to the opening of the transport compartment, the front end of the front platform abuts against the rear end of the transition plate. The locking plate is manually moved and rotated so that the hook-shaped structure at the front end of the locking plate hooks onto the transition plate. At this time, the lifting assembly is controlled to move upward, driving the locking plate to rotate counterclockwise, pressing the locking plate firmly onto the transition plate. This makes the connection between the front platform, the locking plate, and the transition plate more stable, allowing the vehicle to travel smoothly between the front platform and the transition plate. The front platform and the transport compartment transition plate are less likely to be damaged by passing vehicles, improving the safety of the platform vehicle. The locking plate can move relative to the rotating shaft along the X-axis direction to adapt to different sizes of transition plates on the transport compartment, improving the applicability of the platform vehicle. Attached Figure Description
[0016] Figure 1 This is one of the structural schematic diagrams of the rear platform tilting platform car according to an embodiment of this utility model;
[0017] Figure 2 This is the second structural schematic diagram of the rear platform tilting platform car according to an embodiment of this utility model;
[0018] Figure 3 This is the third structural schematic diagram of the rear platform tilting platform car according to an embodiment of this utility model;
[0019] Figure 4 This is a schematic diagram of the front fixing device according to an embodiment of the present utility model;
[0020] Figure 5 This is a schematic diagram of the lifting device according to an embodiment of the present utility model;
[0021] Figure 6 This is a schematic diagram of the connection structure between the front support column and the telescopic outrigger in an embodiment of this utility model.
[0022] Explanation of reference numerals in the attached figures:
[0023] 1-Vehicle body; 11-Telescopic outriggers; 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-Pressure block; 42-Rotating shaft 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 support column; 62-Support seat; 63-First connecting hole; 64-Pin; 65-Second connecting hole; 7-Intermediate support column; 8-Transition plate. Detailed Implementation
[0024] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0025] It should be noted that in the description of this utility model, the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "top", "bottom", "front", "back", "inner" and "outer" is based on the orientation or positional relationship shown in the accompanying drawings and is only for the convenience of describing this utility model, and is not intended to indicate or imply that the device referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the scope of protection of this utility model.
[0026] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature.
[0027] Furthermore, although specific embodiments have been described herein with reference to them, it should be understood that these embodiments are merely examples of the principles and applications of the present invention. Therefore, it should be understood that many modifications can be made to the exemplary embodiments, and other arrangements can be designed without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that different dependent claims and features herein can be combined in ways not used as described in the original claims. It is also understood that features described in conjunction with individual embodiments can be used in other embodiments.
[0028] To solve the above problems, such as Figures 1 to 4 As shown, this utility model provides a rear platform tilting platform vehicle, including a vehicle body 1, a front platform 2, a rear platform 3, and a front fixing device 4. The front platform 2 is connected above the vehicle body 1, and its rear end is connected to the rear 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 of the vehicle body 1, and the other end of the rear platform 3 is used to rest on the ground. The front fixing device 4 includes a locking plate 41, a pivot seat 42, and a lifting assembly 43. The pivot seat 42 is connected to the front end of the front platform 2, and the pivot seat 4... 2. Extending along the width direction of the vehicle body 1, the locking plate 41 has a strip-shaped hole 411 extending along the front-rear direction of the vehicle body 1. The rotating shaft on the rotating shaft seat 42 passes through the strip-shaped hole 411 and is used to move along the front-rear direction of the vehicle body 1 within the strip-shaped hole 411. One end of the lifting assembly 43 is connected to the front platform 2, and the other end abuts against the lower surface of the rear end of the locking plate 41. The lifting assembly 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, which is used to hook onto the transition plate 8.
[0029] In this embodiment, a vehicle body 1 is configured with the front end facing the direction of the vehicle's front and the rear end facing the direction of the vehicle's rear. A front platform 2 is positioned above the vehicle body 1, with its rear end connected to the rear end of the vehicle. The front end of the front platform 2 is approximately at the same height as the transition plate 8. A rear platform 3 is hinged to the rear of the vehicle body 1. The rear platform 3 can rotate around the Y-axis to detach from the ground, facilitating the movement of the vehicle body 1 along the front platform 2 and the rear platform 3 on the ground. During operation, the rear platform 3 rotates to rest on the ground, at which point the upper surfaces of the front platform 2 and the rear platform 3 are connected as a single unit, allowing the vehicle to easily move between the front platform 2 and the rear platform 3. The platform car travels between the ground and the transport compartment. When not in operation, the rear platform 3 rotates upwards to move away from the ground, shortening the overall length of the platform car and making it easier for the platform car to travel on the track. This reduces the risk of damage to the rear platform 3 and improves the safety of the platform car. A front fixing device 4 is installed at the front end of the front platform 2. The pivot seat 42 on the front fixing device 4 is connected to the front end of the front platform 2. The pivot seat 42 and the pivot on it extend along the Y-axis. A locking plate 41 is installed, and a strip hole 411 extending along the front-rear direction of the car body 1 is opened on the locking plate 41. The locking plate 41 is fitted 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-rear direction of the vehicle body 1 through the strip hole 411. The front end face of the front platform 2 is also provided with a lifting assembly 43. The upper end of the lifting assembly 43 abuts against the lower rear end surface of the locking plate 41. The lifting assembly 43 can change position in the Z-axis direction. When the lifting assembly 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 opening of the transport compartment, and the front end of the front platform 2 abuts against the rear end of the transition plate 8. The locking plate 41 is manually moved and rotated so that the locking plate 41... 1. The hook-shaped structure 412 at the front end hooks onto the transition plate 8. At this time, the control lifting component 43 moves upward, driving the locking plate 41 to rotate counterclockwise, pressing the locking plate 41 onto the transition plate 8, making the connection between the front platform 2, the locking plate 41 and the transition plate 8 more stable. The car can drive smoothly between the front platform 2 and the transition plate 8. The front platform 2 and the transport compartment transition plate 8 are less likely to be damaged by the car passing by, improving the safety of the platform car. The locking plate 41 can move relative to the rotating shaft along the X-axis direction to adapt to the different sizes of the transition plates 8 on the transport compartment, improving the applicability of the platform car.
[0030] Specifically, such as Figure 3 As shown, the front fixing device 4 can be in two sets, respectively set at both ends of the front platform 2 along the Y-axis direction. Both sets 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 compartment transition plate 8.
[0031] Optionally, such as 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. The rear end of the inclined section 22 extends towards the rear of the vehicle and is inclined downward.
[0032] In this embodiment, the front platform 2 is divided into a horizontal segment 21 and an inclined segment 22 that are connected to each other. The horizontal segment 21 faces the positive direction of the X-axis, and the inclined segment 22 faces the negative direction of the X-axis. The horizontal segment 21 extends in the plane containing the X-axis and Y-axis, and the end of the inclined segment 22 facing the negative direction of the X-axis is inclined in the negative direction of the Z-axis. During operation, 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 segment 22 is easy to connect with the rear platform 3, making it easier for the car to pass.
[0033] Optionally, such as Figure 1 and Figure 5 As shown, the rear platform tilting platform car also includes a lifting device 5. The lifting device 5 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, the lower connecting seat 52 is connected to the upper surface of the car body 1, and the two ends of the telescopic rod 53 are respectively hinged to the upper connecting seat 51 and the lower connecting seat 52. The rear end of the inclined section 22 is rotatably connected to the rear of the car in a vertical plane.
[0034] In this embodiment, by rotatably connecting the rear end of the inclined section 22 to the rear of the vehicle, the inclined section 22 can rotate relative to the rear of the vehicle around the Y-axis. A lifting device 5 is provided 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 provided 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 extends and retracts along its length, driving the horizontal section 21 to drive the inclined section 22 to rotate relative to the rear of the vehicle around the Y-axis, 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 compartments of different heights and improve the applicability of the platform vehicle.
[0035] Specifically, the telescopic rod 53 can be an electric push rod.
[0036] Optionally, such as Figure 5As shown, the lifting device 5 also includes a limiting rod 54. A limiting sleeve 55 is sleeved on the periphery of the fixed end of the telescopic rod 53. A limiting hole is opened on the limiting sleeve 55, which passes through the upper and lower surfaces of the limiting sleeve 55. The limiting hole is in the same direction as the extension of the telescopic rod 53. An extension plate 541 extending towards the upper connecting seat 51 is provided at the upper end of the limiting rod 54. 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 passes through 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, which 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 fitted around the periphery 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 extension direction of the telescopic rod 53. A limiting rod 54 is inserted into the limiting hole, and the extension direction of the limiting rod 54 is also the same as the extension 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 towards the upper connecting seat 51 and is connected to the upper connecting seat 52. 1. When the telescopic rod 53 extends and retracts, the front platform 2 moves the upper connecting seat 51, which in turn moves the extension plate 541 and the limiting rod 54. 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. This limits the extension and retraction direction of the telescopic rod 53, ensuring that the extension and retraction end of the telescopic rod 53 can only extend and retract along the extension direction of the fixed end of the telescopic rod 53. This prevents the telescopic rod 53 from rotating due to hinges with the upper connecting seat 51 and the lower connecting seat 52, which would affect its extension and retraction direction.
[0038] Optionally, such as Figure 1 As shown, the rear platform tilting platform car also includes a middle support column 7 extending in the vertical direction. The lower end of the middle support column 7 is connected to the middle part of the car body 1 along its length direction, and the upper end of the middle support column 7 abuts against the lower surface of the inclined section 22. The middle support column 7 is used for vertical extension and retraction.
[0039] In this embodiment, a middle support column 7 extending along the Z-axis is provided at the middle position of the vehicle body 1 in the X-axis direction. The middle support column 7 can extend and retract along the Z-axis direction. The upper end of the middle support column 7 abuts against the lower surface of the inclined section 22. The middle support column 7 can support the inclined section 22, so that the inclined section 22 can be rotatably connected to the vehicle body 1. The length of the middle support column 7 extends and retracts with the extension and retraction of the lifting device 5, so that the upper end of the middle 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] Optionally, such as 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 can correspond to the width of the car wheel. By setting two rear platforms 3, the two rear platforms 3 are arranged along the Y-axis and correspond to the two wheels in the width direction of the car, the car can drive into 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, and saving materials at the same time.
[0042] Optionally, such as Figure 6 As shown, the rear platform tilting platform car also includes a pin 64 and a front support column 61. The side of the front end of the car 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. The telescopic support leg 11 is provided with a support seat 62. The support seat 62 is provided with a plurality of first connecting holes 63 in the vertical direction. The front support column 61 is provided with a plurality of second connecting holes 65 in the vertical direction. The two ends of the pin 64 are respectively inserted into any of the second connecting holes 65 and any of the first connecting holes 63. The front support column 61 extends in the vertical direction, and the upper end of the front support column 61 abuts against the lower end of the front platform 2.
[0043] In this embodiment, a telescopic outrigger 11 is provided on the side wall at the front end of the vehicle body 1. The bottom end of the telescopic outrigger 11 extends and retracts in the Z-axis direction. During operation, the telescopic outrigger 11 extends and supports the ground, improving the stability of the platform vehicle. A support base 62 is provided at the upper end of the telescopic outrigger 11. Multiple first connecting holes 63 are opened on the side of the support base 62 along the Z-axis direction. The first connecting holes 63 extend in the horizontal plane. A front support column 61 is provided, and multiple second connecting holes 65 are opened on the side wall of the front support column 61 along the Z-axis direction, for setting pins. The two ends of the shaft 64 and the pin 64 are respectively inserted into either the first connecting hole 63 and the second connecting hole 65 to connect the front support column 61 to the telescopic outrigger 11. The upper end of the front support column 61 abuts 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 into which the pin 64 is inserted, the position of the front support column 61 in the Z-axis direction is adjusted according to the telescopic state of the lifting device 5, so that the upper end of the front support column 61 always supports the front platform 2, making the connection between the front platform 2 and the vehicle body 1 more stable.
[0044] Optionally, such as Figure 6 As shown, there are two pins 64, and the two ends of the two pins 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 setting two pins 64, one end of each pin 64 is inserted into any two second connecting holes 65, and the other end of each pin 64 is inserted into two first connecting holes 63 at the same height as the two second connecting holes 65, the connection between the front support column 61 and the support base 62 and the telescopic outrigger 11 is made more stable, and the front support column 61 is also limited to ensure that the front support column 61 extends along the Z-axis direction and can better support the front platform 2.
[0046] Optionally, such as 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. The lifting seat 432 has a threaded hole that runs through in the vertical direction. The outer surface of the lifting rod 431 has an external thread and is threadedly connected to the threaded hole.
[0047] In this embodiment, a lifting seat 432 is provided on the side of the front platform 2. The lifting seat 432 has a threaded hole that runs through the Z-axis. A lifting rod 431 is provided in the threaded hole. The external thread on the periphery of the lifting rod 431 is threadedly connected to the threaded hole. The lifting rod 431 can be rotated around the Z-axis to adjust the height of the lifting rod 431, thereby making the lifting rod 431 abut against the lower surface of the locking plate 41.
[0048] Optionally, such as 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 pressing block 413 is provided below the rear end of the locking plate 41. The pressing block 413 has a large area in the plane containing the X and Y axes. The upper end of the lifting rod 431 directly abuts against the pressing block 413. The upward force of the lifting rod 431 is transmitted to the locking plate 41 through the pressing 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 has been disclosed above, its protection scope is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the protection scope of the present invention.
Claims
1. A rear-platform tilting platform car, characterized in that, The vehicle includes a body (1), a front platform (2), a rear platform (3), and a front fixing device (4). The front platform (2) is connected above the body (1), and the rear end of the front platform (2) is connected to the rear of the 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 of the body (1), and the other end of the rear platform (3) is used to rest on the ground. The front fixing device (4) includes a locking plate (41), a pivot seat (42), and a lifting assembly (43). The pivot seat (42) is connected to the front end of the front platform (2), and the pivot seat (42) has a width along the body (1). The locking plate (41) has a rotating shaft extending in the degree direction, and a strip hole (411) extending in the front-rear direction of the vehicle body (1) is provided on the locking plate (41). The rotating shaft on the rotating shaft seat (42) passes through the strip hole (411) and is used to move in the strip hole (411) in the front-rear direction of the vehicle body (1). One end of the lifting assembly (43) is connected to the front platform (2), and the other end abuts against the lower surface of the rear end of the locking plate (41). The lifting assembly (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 tilting platform car according to claim 1, characterized in that, 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). The rear end of the inclined section (22) extends towards the rear of the vehicle and is inclined downward.
3. The rear platform tilting platform car according to claim 2, characterized in that, It 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), the lower connecting seat (52) is connected to the upper surface of the vehicle body (1), and the two ends of the telescopic rod (53) are respectively hinged to the upper connecting seat (51) and the lower connecting seat (52). The rear end of the inclined section (22) is rotatably connected to the rear of the vehicle in a vertical plane.
4. The rear platform tilting platform car according to claim 3, characterized in that, The lifting device (5) also includes a limiting rod (54). A limiting sleeve (55) is sleeved on the periphery of the fixed end of the telescopic rod (53). A limiting hole is opened on the limiting sleeve (55) between the upper and lower surfaces of the limiting sleeve (55). The limiting hole is in the same direction as the extension of the telescopic rod (53). An extension plate (541) extending towards the upper connecting seat (51) is provided at the upper end of the limiting rod (54). 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) passes through the limiting hole and is slidably connected to the limiting sleeve (55).
5. The rear platform tilting platform car according to claim 3, characterized in that, It also includes a middle support column (7) extending in the vertical direction. The lower end of the middle support column (7) is connected to the middle part of the vehicle body (1) along its length direction. The upper end of the middle support column (7) abuts against the lower surface of the inclined section (22). The middle support column (7) is used for vertical extension and retraction.
6. The rear platform tilting platform car 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 tilting platform car according to claim 1, characterized in that, It also includes a pin (64) and a front support (61). The side 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 the ground. The telescopic support leg (11) is provided with a support seat (62). The support seat (62) is provided with a plurality of first connecting holes (63) in the vertical direction. The front support (61) is provided with a plurality of second connecting holes (65) in the vertical direction. The two ends of the pin (64) are respectively inserted into any of the second connecting holes (65) and any of the first connecting holes (63). The front support (61) extends in the vertical direction. The upper end of the front support (61) abuts against the lower end of the front platform (2).
8. The rear platform tilting platform car according to claim 7, characterized in that, There are two pins (64), and the two ends of the two pins (64) are respectively inserted into any two of the second connecting holes (65) and any two of the first connecting holes (63).
9. The rear platform tilting platform car according to claim 1, characterized in that, 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). The lifting seat (432) has a threaded hole that runs through the vertical direction. The outer surface of the lifting rod (431) has an external thread and is threadedly connected to the threaded hole.
10. The rear platform tilting platform car according to claim 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).