Flat semitrailer platform of flat transport vehicle
By designing a flatbed semi-trailer cargo platform with conversion and protective structures, the problem of inconvenient steel coil transportation was solved, achieving stable fixing and safe transportation of steel coils.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEZE HONGWEI SPECIAL PURPOSE VEHICLE CO LTD
- Filing Date
- 2025-07-31
- Publication Date
- 2026-05-15
AI Technical Summary
The existing flatbed semi-trailer platform is not convenient for transporting steel coils, which are prone to shifting during transportation, affecting safety.
A flatbed semi-trailer cargo platform including a conversion structure and a protective structure was designed. The conversion structure fixes the steel coil with hydraulic cylinders and limiting blocks, while the protective structure prevents the steel coil from moving through a protective plate, ensuring safety.
This method achieves stable fixing and convenient unloading of steel coils, improves transportation safety, and avoids safety hazards caused by movement of steel coils during transportation.
Smart Images

Figure CN224240911U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of flatbed semi-trailers, specifically, it relates to a flatbed semi-trailer cargo platform for a flatbed transport vehicle. Background Technology
[0002] Flatbed transport vehicles, also known as engineering machinery transport vehicles, flatbed trucks, or low-bed transport vehicles, are mainly used to transport non-detachable objects such as excavators, loaders, and harvesters.
[0003] The cargo platforms of most common flatbed semi-trailers are flat, which makes it difficult to place them when transporting giant steel coils. Placing the steel coils with the flat side facing up is not convenient for unloading, while placing them with the curved side facing down is not convenient for transport. Furthermore, there is a high probability that the steel coils will move when bumping or turning, which could affect the safety of the driver and pedestrians. Therefore, there is an urgent need for a flatbed semi-trailer cargo platform that can facilitate the transport of steel coils.
[0004] In view of this, this utility model is proposed. Utility Model Content
[0005] To address the technical problem that the existing technology is inconvenient for transporting steel coils, the basic concept of the technical solution adopted by this utility model is as follows:
[0006] A flatbed semi-trailer cargo platform for a flatbed transport vehicle includes:
[0007] The trailer loading platform has wheels that are rotatably connected to its bottom. Multiple wheels are evenly and symmetrically arranged at the bottom of the trailer loading platform. A loading plate is rotatably connected to the rear wall of the trailer loading platform.
[0008] The conversion structure enables the stable loading of steel coils on the top of the trailer loading platform. The conversion structure includes: a storage slot, a lifting block, a limiting block, and a limiting groove. The storage slot is located on the top of the trailer loading platform. The lifting block is slidably connected in the storage slot. The limiting block is fixedly connected to the top of the lifting block. The limiting groove is located on the top of the limiting block and is an isosceles triangular groove. Multiple limiting grooves are provided on the top of the limiting block.
[0009] In a preferred embodiment of this utility model, the storage groove can fit in close to the surrounding walls of the lifting block. When the lifting block is at its lowest point in the storage groove, the top of the limiting block is flush with the top of the trailer cargo platform. The length of the limiting block is the same as the top of the lifting block, and the limiting grooves are arranged in a linear array on the top of the limiting block.
[0010] In a preferred embodiment of this utility model, the conversion structure further includes a hidden groove, a connecting column, a side plate, a hydraulic cylinder, and an anti-slip groove. The hidden groove is located at the center of the bottom of the lifting block. The connecting column is fixedly connected to the wall of the lifting block inside the hidden groove. The side plate is fixedly connected to the wall of the trailer cargo platform at the bottom of the storage groove. The bottom of the hydraulic cylinder is rotatably connected to the wall of the side plate. The anti-slip groove is located at the top of the trailer cargo platform.
[0011] In a preferred embodiment of this utility model, the oil cylinder and the side plate can be located in a hidden groove. The top of the oil cylinder is also rotatably connected to a connecting column, which is cylindrical. A circular groove adapted to the rotation of the connecting column is provided on the top side wall of the oil cylinder. Multiple anti-slip grooves are evenly provided on the top wall of the trailer cargo platform, and the anti-slip grooves are arc-shaped grooves with the opening facing upward.
[0012] In a preferred embodiment of this utility model, the top of the trailer loading platform is also provided with a protective structure, which includes an arc block, a lifting groove, a protective plate, a limiting plate, and a fixing groove. The arc block is fixedly connected to the top of the front wall of the trailer loading platform. The lifting groove is symmetrically opened on both sides of the top of the trailer loading platform. The protective plates are slidably connected in the symmetrical lifting grooves. The limiting plates are fixedly connected to the top of the protective plates. The fixing groove is opened on the front and rear walls of the protective plates.
[0013] In a preferred embodiment of this utility model, the protective structure further includes an adjustment box, a slot, a slot, a slider, a lever, and a lever. The adjustment box is symmetrically and fixedly connected to the top of the trailer cargo platform on the front and rear walls of the lifting groove. The slot is opened on the top of the adjustment box, and the slot is opened on the wall surface of the symmetrical adjustment boxes facing each other on each side. The slider is slidably connected to the wall surface of the adjustment box, the lever is fixedly connected to the top of the slider, and the lever is fixedly connected to the wall surface of the slider.
[0014] In a preferred embodiment of this utility model, the adjustment box is a hollow rectangular box, the slider is slidably connected in the cavity of the adjustment box, the toggle block can slide in the toggle groove, the locking block can slide in the locking groove, the fixing groove can be adapted to the size of the locking block, each adjustment box is provided with a slider, a locking block and a toggle block, each corresponding locking block can be locked into the fixing groove, and the arc block is a block with a fan-shaped cross-section.
[0015] Compared with the prior art, the present invention has the following advantages:
[0016] 1. By setting up a conversion structure, the top of the trailer cargo platform can be fixed from the bottom by adjusting the extension of the hydraulic cylinder and raising the limiting block. The steel coil will also be in a state that is easy to unload. The limiting groove can be adapted to fix steel coils of different sizes by moving the limiting block up and down. Therefore, this solution restricts the position of the steel coil to the wall of the trailer cargo platform by adapting to the bottom arc size of the steel coil, which facilitates the transportation and unloading of the steel coil.
[0017] 2. By setting up a protective structure, the steel coil can be fixed in place and then the protective plate can be adjusted to block both sides of the steel coil, thus preventing the steel coil from moving to the sides due to loose fixing and causing personal injury. In the event of an accident and the steel coil rolls forward, the steel coil will move along the arc surface of the arc block, and the driver at the bottom of the arc block will be avoided from being crushed by the steel coil, thus ensuring the safety of the driver.
[0018] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description
[0019] In the attached diagram:
[0020] Figure 1 This is a perspective view of the present utility model.
[0021] Figure 2 This is an exploded view of the top structure of the trailer cargo platform of this utility model.
[0022] Figure 3 This is an exploded view of the bottom structure of the lifting block of this utility model.
[0023] Figure 4 This is a perspective view of the protective plate and limiting plate of this utility model.
[0024] Figure 5 This is a schematic diagram showing the disassembled adjustment box and slider of this utility model.
[0025] In the diagram: 20. Trailer cargo platform; 21. Wheel; 22. Loading platform; 23. Arc block; 30. Storage slot; 31. Lifting block; 32. Hidden slot; 33. Limiting block; 34. Limiting slot; 35. Connecting column; 36. Side plate; 37. Hydraulic cylinder; 38. Anti-slip groove; 40. Lifting slot; 41. Protective plate; 42. Limiting plate; 43. Fixing slot; 44. Adjustment box; 45. Dip slot; 46. Card slot; 47. Slider; 48. Dip block; 49. Card block. Detailed Implementation
[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model.
[0027] like Figure 1 , Figure 2 and Figure 5 As shown, a flatbed semi-trailer cargo platform of a flatbed transport vehicle includes a trailer cargo platform 20. The bottom of the trailer cargo platform 20 is rotatably connected to wheels 21. Multiple wheels 21 are evenly and symmetrically arranged at the bottom of the trailer cargo platform 20. A loading plate 22 is rotatably connected to the rear wall of the trailer cargo platform 20. The trailer cargo platform 20 is installed and docked at the rear towing connection point of the semi-trailer head. This is existing technology, so it will not be described in detail here.
[0028] like Figure 1 , Figure 2 and Figure 3As shown, the conversion structure enables the trailer loading platform 20 to stably load steel coils. The conversion structure includes: a storage slot 30, a lifting block 31, a limiting block 33, and a limiting groove 34. The storage slot 30 is opened on the top of the trailer loading platform 20. The lifting block 31 is slidably connected in the storage slot 30. The limiting block 33 is fixedly connected to the top of the lifting block 31. The limiting groove 34 is opened on the top of the limiting block 33. The limiting groove 34 is an isosceles triangular groove. Multiple limiting grooves 34 are opened on the top of the limiting block 33.
[0029] like Figure 1 , Figure 2 and Figure 3 As shown, the storage slot 30 can fit against the surrounding walls of the lifting block 31. When the lifting block 31 is at its lowest point within the storage slot 30, the top of the limiting block 33 is flush with the top of the trailer cargo platform 20. The length of the limiting block 33 is the same as the top of the lifting block 31. The limiting slots 34 are linearly arrayed on the top of the limiting block 33. The conversion structure also includes a hidden slot 32, a connecting column 35, a side plate 36, a hydraulic cylinder 37, and an anti-slip groove 38. The hidden slot 32 is located at the bottom center of the lifting block 31. The connecting column 35 is fixedly connected to the wall of the lifting block 31 within the hidden slot 32. The plate 36 is fixedly connected to the wall of the trailer platform 20 at the bottom of the storage groove 30. The bottom of the cylinder 37 is rotatably connected to the wall of the side plate 36. The anti-slip groove 38 is opened on the top of the trailer platform 20. The cylinder 37 and the side plate 36 can be located in the hidden groove 32. The top of the cylinder 37 is also rotatably connected to the connecting column 35. The connecting column 35 is cylindrical. The top side wall of the cylinder 37 is provided with a circular groove adapted to the rotation of the connecting column 35. Multiple anti-slip grooves 38 are evenly opened on the top wall of the trailer platform 20. The anti-slip grooves 38 are arc-shaped grooves with the opening facing upward.
[0030] In practical use, firstly, the loading plate 22 is flipped downwards until it contacts the ground, and the steel coil to be transported is moved along the loading plate 22 to above the limiting groove 34, or the steel coil is moved by a crane. After the steel coil is placed, the power to the hydraulic cylinder 37 is turned on, causing the hydraulic cylinder 37 to extend in length. When the hydraulic cylinder 37 extends, it will lift the connecting column 35 upwards. The connecting column 35 can drive the lifting block 31 to lift upwards simultaneously. The lifting block 31 can drive the limiting block 33 to move upwards. The limiting groove 34 at the top of the limiting block 33 will contact the arc surface at the bottom of the steel coil. At this time, the lifting block 31 will always be located in the storage groove 30 and will not extend out from it. When the arc surface at the bottom of the steel coil is stuck in the limiting groove 34 and contacts the wall of the limiting block 33 in the limiting groove 34, the hydraulic cylinder 37 will stop extending. At this time, the steel coil will be fixed by the wall of the limiting block 33 in the limiting groove 34. Then, the position of the steel coil can be tied with the steel cable. Then, the loading plate 22 can be flipped into a vertical state and transported with the trailer.
[0031] In summary, by setting up a conversion structure, the top of the trailer loading platform 20 can be fixed from the bottom by adjusting the extension of the hydraulic cylinder 37 and raising the limiting block 33. The steel coil will also be in a state that facilitates unloading. The limiting groove 34 can be adapted to fix steel coils of different sizes by moving the limiting block 33 up and down. Therefore, this solution restricts the position of the steel coil to the wall of the trailer loading platform 20 by adapting to the bottom arc size of the steel coil, which facilitates the transportation and unloading of the steel coil.
[0032] like Figure 4 and Figure 5 As shown, the top of the trailer loading platform 20 is also equipped with a protective structure, which includes an arc block 23, a lifting groove 40, a protective plate 41, a limiting plate 42, and a fixing groove 43. The arc block 23 is fixedly connected to the top of the front wall of the trailer loading platform 20. The lifting groove 40 is symmetrically opened on both sides of the top of the trailer loading platform 20. The protective plate 41 is slidably connected in the symmetrical lifting groove 40. The limiting plate 42 is fixedly connected to the top of the protective plate 41. The fixing groove 43 is opened on the front and rear walls of the protective plate 41. The protective structure also includes an adjustment box 44, a lever 45, a slot 46, a slider 47, a lever 48, and a slot 49. The adjustment box 44 is symmetrically fixedly connected to the top of the trailer loading platform 20 on the front and rear walls of the lifting groove 40. The groove 45 is opened on the top of the adjustment box 44, the slot 46 is opened on the wall surface of the symmetrical adjustment boxes 44 facing each other, the slider 47 is slidably connected to the wall surface of the adjustment box 44, the toggle block 48 is fixedly connected to the top of the slider 47, and the locking block 49 is fixedly connected to the wall surface of the slider 47. The adjustment box 44 is a hollow rectangular box. The slider 47 is slidably connected to the cavity of the adjustment box 44. The toggle block 48 can slide in the toggle groove 45, and the locking block 49 can slide in the slot 46. The fixing groove 43 can be adapted to the size of the locking block 49. Each adjustment box 44 is provided with a slider 47, a locking block 49 and a toggle block 48. Each corresponding locking block 49 can be locked into the fixing groove 43. The arc block 23 is a block with a fan-shaped cross section.
[0033] In practical use, electric cylinders for driving the lifting and lowering of the protective plate 41 are also provided on both sides of the bottom of the trailer platform 20. After the steel coil is fixed by the conversion structure, the electric cylinder is turned on. When the electric cylinder is raised, it can drive the symmetrical protective plate 41 to the limit plate 42 to lift towards the top of the trailer platform 20. The protective plate 41 is adjusted to cover the two side walls of the steel coil. At this time, the slider 47 drives the locking block 49 to be inserted into the fixing groove 43 on the wall of the lifting groove 40 by moving the anti-slip groove 38, thereby further fixing the position of the lifting groove 40. The side wall of the slider 47 is equipped with a magnet, which can drive the slider 47 to be attracted to the side wall of the cavity of the adjustment box 44.
[0034] In summary, by setting up a protective structure, the steel coil can be fixed in place and then the protective plate 41 can be adjusted to raise and lower to block both sides of the steel coil, thus preventing the steel coil from moving to the sides due to loose fixing and causing personal injury. In the event of an accident and the steel coil rolls forward, the steel coil will move along the arc surface of the arc block 23, and the driver at the bottom of the arc block 23 will be protected from being crushed by the steel coil, thus ensuring the safety of the driver.
[0035] Working principle: First, the loading plate 22 is flipped downwards to contact the ground, and the steel coil to be transported is moved along the loading plate 22 to the top of the limiting groove 34, or the steel coil is moved by a crane. After the steel coil is placed, the power of the hydraulic cylinder 37 is turned on, causing the hydraulic cylinder 37 to extend in length. When the hydraulic cylinder 37 extends, it will lift the connecting column 35 upwards. The connecting column 35 can drive the lifting block 31 to lift upwards at the same time. The lifting block 31 can drive the limiting block 33 to move upwards. The limiting groove 34 at the top of the limiting block 33 will contact the arc surface at the bottom of the steel coil. When the arc surface at the bottom of the steel coil is stuck in the limiting groove 34 and contacts the wall of the limiting block 33 in the limiting groove 34, the hydraulic cylinder 37 stops extending. At this time, the steel coil will be fixed by the wall of the limiting block 33 in the limiting groove 34. Then, the position of the steel coil can be tied with steel cables. Then, the loading plate 22 is flipped to a vertical position and transported with a trailer. When unloading the steel coil, the limiting block 33 is controlled to descend.
[0036] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.
Claims
1. A flatbed semi-trailer cargo platform for a flatbed transport vehicle, characterized in that, include: The trailer platform (20) has wheels (21) rotatably connected to its bottom. Multiple wheels (21) are evenly and symmetrically arranged at the bottom of the trailer platform (20). The rear wall of the trailer platform (20) is rotatably connected to a loading plate (22). The conversion structure enables the trailer loading platform (20) to stably load steel coils. The conversion structure includes: a storage slot (30), a lifting block (31), a limiting block (33), and a limiting groove (34). The storage slot (30) is located on the top of the trailer loading platform (20). The lifting block (31) is slidably connected in the storage slot (30). The limiting block (33) is fixedly connected to the top of the lifting block (31). The limiting groove (34) is located on the top of the limiting block (33). The limiting groove (34) is an isosceles triangular groove. Multiple limiting grooves (34) are provided on the top of the limiting block (33).
2. The flatbed semi-trailer cargo platform of a flatbed transport vehicle according to claim 1, characterized in that, The storage slot (30) can fit against the four walls of the lifting block (31). When the lifting block (31) is at its lowest point in the storage slot (30), the top of the limiting block (33) is flush with the top of the trailer cargo platform (20). The length of the limiting block (33) is the same as the top of the lifting block (31). The limiting slots (34) are arranged in a linear array on the top of the limiting block (33).
3. The flatbed semi-trailer cargo platform of a flatbed transport vehicle according to claim 1, characterized in that, The conversion structure also includes a hidden groove (32), a connecting column (35), a side plate (36), a hydraulic cylinder (37), and an anti-slip groove (38). The hidden groove (32) is located at the bottom center of the lifting block (31). The connecting column (35) is fixedly connected to the wall of the lifting block (31) inside the hidden groove (32). The side plate (36) is fixedly connected to the wall of the trailer platform (20) at the bottom of the storage groove (30). The bottom of the hydraulic cylinder (37) is rotatably connected to the wall of the side plate (36). The anti-slip groove (38) is located at the top of the trailer platform (20).
4. The flatbed semi-trailer cargo platform of a flatbed transport vehicle according to claim 3, characterized in that, The cylinder (37) and the side plate (36) can be located in the hidden groove (32). The top of the cylinder (37) is also rotatably connected to the connecting column (35). The connecting column (35) is cylindrical. The top side wall of the cylinder (37) is provided with a circular groove adapted to the rotation of the connecting column (35). Multiple anti-slip grooves (38) are evenly provided on the top wall of the trailer cargo platform (20). The anti-slip grooves (38) are arc-shaped grooves with the opening facing upward.
5. The flatbed semi-trailer cargo platform of a flatbed transport vehicle according to claim 1, characterized in that, The top of the trailer loading platform (20) is also provided with a protective structure, which includes an arc block (23), a lifting groove (40), a protective plate (41), a limiting plate (42), and a fixing groove (43). The arc block (23) is fixedly connected to the top of the front wall of the trailer loading platform (20). The lifting groove (40) is symmetrically opened on both sides of the top of the trailer loading platform (20). The protective plate (41) is slidably connected in the symmetrical lifting groove (40). The limiting plate (42) is fixedly connected to the top of the protective plate (41). The fixing groove (43) is opened on the front and rear walls of the protective plate (41).
6. The flatbed semi-trailer cargo platform of a flatbed transport vehicle according to claim 5, characterized in that, The protective structure also includes an adjustment box (44), a slot (45), a slot (46), a slider (47), a lever (48), and a lever (49). The adjustment box (44) is symmetrically fixedly connected to the top of the trailer cargo platform (20) on the front and rear walls of the lifting groove (40). The slot (45) is opened on the top of the adjustment box (44). The slot (46) is opened on the wall of the symmetrical adjustment boxes (44) facing each other. The slider (47) is slidably connected to the wall of the adjustment box (44). The lever (48) is fixedly connected to the top of the slider (47). The lever (49) is fixedly connected to the wall of the slider (47).
7. The flatbed semi-trailer cargo platform of a flatbed transport vehicle according to claim 6, characterized in that, The adjustment box (44) is a hollow rectangular box. The slider (47) is slidably connected in the cavity of the adjustment box (44). The toggle block (48) can slide in the toggle groove (45). The locking block (49) can slide in the locking groove (46). The fixing groove (43) can be adapted to the size of the locking block (49). Each adjustment box (44) is provided with a slider (47), a locking block (49) and a toggle block (48). Each corresponding locking block (49) can be locked into the fixing groove (43). The arc block (23) is a block with a fan-shaped cross-section.