Non-skid low flatbed transport semi-trailer

By using a cylinder to drive the buffer rod and guide plate to adjust the buffer height and angle, combined with the buffer protrusion and triangular support structure, the problem of insufficient buffer height adjustment precision of low-bed semi-trailers is solved, thus improving transportation stability and load-bearing capacity.

CN224676232UActive Publication Date: 2026-08-25SHANDONG FUYUAN SPECIAL PURPOSE VEHICLE MFG CO LTD
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Patent Information

Application Number
CN202522220968.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-21
Publication Date
2026-08-25
Estimated Expiration
2035-10-21

AI Technical Summary

Technical Problem

The existing low-bed semi-trailers have insufficient precision in adjusting the buffer height, resulting in a deviation between the platform height and the target height, which affects the efficiency of loading and unloading goods.

Method used

The buffer height is adjusted by moving the buffer rod up and down with a cylinder. The buffer mechanism can be easily replaced with locking screws, and the buffer bumps and triangular bumps are combined to enhance stability. The guide plate is rotated by a cylinder to adjust the frame angle. It is fixed by a fixed arc and a fixed ring to form a triangular support structure to enhance the load-bearing capacity.

Benefits of technology

It enables flexible adjustment of buffer height and angle, improves the ease of operation and reliability of the equipment, reduces maintenance costs, and enhances the stability and load-bearing capacity of cargo transportation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of semitrailer, concretely relates to a low flatbed transport semitrailer of antiskid, including upper loading board, the bottom of upper loading board is provided with a plurality of reinforcing institutions, the outside one side of upper loading board is fixedly connected with the connecting arc plate, the bottom one side of upper loading board is provided with two buffer mechanism, the buffer mechanism includes the fixed frame, the inside of fixed frame is provided with the sliding slot, the inside sliding connection of sliding slot has the connecting plate, the bottom fixed connection of connecting plate has the air cylinder no.
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Description

Technical Field

[0001] This utility model relates to the field of semi-trailer technology, and in particular to a low-bed semi-trailer with anti-slip properties. Background Technology

[0002] Low-flatbed semi-trailers are a special type of semi-trailer with a low cargo platform. They typically use hydraulic or mechanical devices to raise, lower, and tilt the platform, and are mainly used for transporting large, heavy, or oversized / overweight goods, such as construction machinery, large steel structures, and wind turbine components. In wind power project construction, low-flatbed semi-trailers can smoothly transport massive wind turbine blades or towers, weighing over 100 tons, from the production base to the wind power installation site. The low platform design lowers the center of gravity of the cargo, reducing swaying during transport and ensuring safe delivery.

[0003] A search revealed Chinese patent publication number CN216153894U, which discloses a low-flatbed semi-trailer. The semi-trailer includes a semi-trailer body. An upper mounting plate is fixedly connected to the top center of the front end of the semi-trailer body, and a fastening bolt is located at the center of the upper mounting plate. A lower mounting plate is fixedly connected to the bottom center of the front end of the semi-trailer body. Baffles are fixedly connected to both sides of the top of the semi-trailer body, and wheels are located at the corners of the bottom of the semi-trailer body. This invention uses the fastening bolt to thread-connect the upper and lower mounting plates, thus securing the tractor unit to the semi-trailer body. Simultaneously, starting the drive motor rotates the shaft, which in turn rotates the rear rotating plate, facilitating the vehicle's direct drive onto the top of the semi-trailer body. Anti-slip mats increase friction with the cargo, and baffles prevent cylindrical objects from rolling off.

[0004] The aforementioned patent specification mentions that "by tightening the fastening bolts to thread them to the upper and lower mounting plates, a secure connection can be made between the tractor unit and the semi-trailer body. Simultaneously, starting the drive motor can rotate the shaft, thereby rotating the rear rotating plate, facilitating the vehicle to drive directly onto the top of the semi-trailer body. The anti-slip mat increases friction with the cargo, and the baffle can prevent cylindrical objects from rolling off." While the above features can prevent rolling off, some low-bed semi-trailers rely on passive cushioning from mechanical spring suspension or simple hydraulic adjustment for height adjustment. During adjustment, it is difficult to control the lifting height of the cargo platform. When transporting goods with different height requirements, the cargo platform height may deviate from the target height, affecting loading and unloading efficiency. Therefore, an anti-slip low-bed semi-trailer is proposed to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a non-slip low-bed semi-trailer, which solves the problem of insufficient buffer height adjustment accuracy and easy positioning deviation in some low-bed semi-trailers.

[0006] To achieve the above objectives, this utility model provides an anti-slip low-bed semi-trailer, including an upper body plate. Two frame mechanisms are provided on the outer side of the upper body plate, and multiple reinforcing mechanisms are provided on the bottom of the upper body plate. A connecting arc plate is fixedly connected to the outer side of the upper body plate, and two buffer mechanisms are provided on the bottom side of the upper body plate. Each buffer mechanism includes a fixing frame, the top of which is fixedly connected to the bottom side of the upper body plate. A sliding groove is provided inside the fixing frame, and a connecting plate is slidably connected inside the sliding groove. A cylinder is fixedly connected to the bottom of the connecting plate, and a buffer rod is fixedly connected to the bottom of the cylinder. Multiple buffer protrusion assemblies are provided on the top of the upper body plate.

[0007] The reinforcement mechanism includes multiple hollow strips, the tops of which are fixedly connected to the bottom of the upper plate, and multiple reinforcing plates are fixedly connected to the bottoms of which are multiple hollow strips.

[0008] The fixing bracket has multiple locking screws on its external thread, and the external threads of the locking screws are connected to the inside of the connecting plate.

[0009] The buffer bump assembly includes a strip-shaped bump, the bottom of which is fixedly connected to the top of the upper plate, and the top of the upper plate is fixedly connected to multiple triangular bumps.

[0010] The reinforcing plate has multiple telescopic rods rotatably connected to its outer two sides. The driving end of each telescopic rod is fixedly connected to a connecting block two, which is rotatably connected to the outer two sides of the hollow strip.

[0011] The frame mechanism includes a guide plate, which is rotatably connected to the outside of the upper body plate. Two extension plates are fixedly connected to the outer side of the upper body plate.

[0012] The extension plate is rotatably connected to a second cylinder, the drive end of the second cylinder is fixedly connected to a first connecting block, and the first connecting block is rotatably connected to the outside of the guide plate.

[0013] The guide plate is externally fixed with multiple fixed arcs, and the upper plate is externally fixed with multiple fixed rings on both sides. A traction line is provided between the fixed arcs and the fixed rings.

[0014] 1. This utility model discloses an anti-slip low-bed semi-trailer. A cylinder drives a buffer rod to move up and down. To adjust the height of the buffer rod and replace the buffer mechanism, simply loosen the locking screw, slide the connecting plate out of the fixed frame for replacement, and then slide it back into place. The operation is convenient. At the same time, the strip-shaped protrusion and triangular protrusion on the top of the upper plate form a buffer protrusion assembly. By contacting the mixing container, the stability is enhanced. There is no need to disassemble complex parts, which improves the convenience and reliability of operation and reduces maintenance costs.

[0015] 2. The present invention provides a non-slip low-bed semi-trailer for transport. Through the drive of cylinder two to connect block one, the guide plate is rotated around the upper loading plate to achieve adjustment. The angle is then fixed by the fixing arc, fixing ring and traction line. The hollow strip at the bottom of the upper loading plate, the reinforcing plate and the telescopic rod constitute a reinforcement mechanism, forming a triangular support to enhance the load-bearing capacity and improve the flexibility and reliability of the equipment. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0017] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the guide plate of this utility model.

[0019] Figure 3 yes Figure 2 Enlarged view of point A in the middle.

[0020] Figure 4 yes Figure 2 Enlarged view of point B in the middle.

[0021] Figure 5 This is a schematic diagram of the structure of the extension plate of this utility model.

[0022] In the diagram: 1. Upper body plate; 2. Connecting arc plate; 3. Buffer mechanism; 31. Fixing frame; 32. Buffer protrusion assembly; 321. Strip protrusion; 322. Triangular protrusion; 33. Locking screw; 34. Connecting plate; 35. Cylinder 1; 36. Buffer rod; 4. Frame mechanism; 41. Guide plate; 42. Fixing arc; 43. Traction line; 44. Fixing ring; 45. Extension plate; 46. Cylinder 2; 47. Connecting block 1; 5. Reinforcing mechanism; 51. Connecting block 2; 52. Hollow strip; 53. Telescopic rod; 54. Reinforcing plate. Detailed Implementation

[0023] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0024] Please see Figures 1 to 3 This utility model provides a technical solution: a non-slip low-bed semi-trailer, including an upper loading plate 1. Two frame mechanisms 4 are provided on the outer side of the upper loading plate 1. The frame mechanisms 4 are used to adjust the connection angle between the equipment and the external traction or support structure to adapt to the installation and positioning requirements under different transportation scenarios. Multiple reinforcing mechanisms 5 are provided at the bottom of the upper loading plate 1. The reinforcing mechanisms 5 enhance the structural strength and load-bearing stability of the upper loading plate 1 and prevent the upper loading plate 1 from deforming due to the weight of the goods or transportation vibration. A connecting arc plate 2 is fixedly connected to the outer side of the upper loading plate 1 and is connected to the front of the vehicle. Two buffer mechanisms 3 are provided on the bottom side of the upper loading plate 1. The upper loading plate 1 is used to install and fix the various mechanisms and carry the goods, providing basic support for the entire semi-trailer. The buffer mechanisms 3 alleviate the vibration and impact during transportation through buffering and prevent the goods from sliding or being damaged due to bumps. The buffer mechanism 3 includes a fixed frame 31, the top of which is fixedly connected to the bottom side of the upper plate 1. The fixed frame 31 has a sliding groove inside, allowing for position adjustment and fixation of the buffer assembly. A connecting plate 34 is slidably connected inside the sliding groove, and a cylinder 35 is fixedly connected to the bottom of the connecting plate 34. The connecting plate 34 slides to adjust the position of the cylinder 35 and the buffer rod 36. The buffer rod 36 is fixedly connected to the bottom of the cylinder 35, and it directly contacts the ground or supporting structure. Through its up-and-down movement, it absorbs transport vibrations, transmits buffering force, and protects the goods. With the equipment, cylinder 35 drives the buffer rod 36 to move up and down through air extension and retraction, thereby controlling the buffer height. Multiple buffer protrusion assemblies 32 are provided on the top of the upper plate 1. The buffer protrusion assemblies 32 increase the friction between the goods and the upper plate 1, and the auxiliary buffer mechanism 3 enhances the stability of the goods and prevents the goods from sliding during transportation. Multiple locking screws 33 are externally threaded to the fixed frame 31. The locking screws 33 fix the relative position of the connecting plate 34 and the fixed frame 31 through threaded connection, limiting the movement stroke of the buffer rod 36. The external threads of the locking screws 33 are connected to the inside of the connecting plate 34. The buffer bump assembly 32 includes a strip-shaped bump 321. The bottom of the strip-shaped bump 321 is fixedly connected to the top of the upper plate 1. The strip-shaped bump 321 is evenly distributed on the top of the upper plate 1 through the strip structure, which increases the contact area of ​​the bottom of the goods and improves the lateral anti-slip effect. Multiple triangular bumps 322 are fixedly connected to the top of the upper plate 1. The triangular bumps 322 utilize the stability of the triangular structure to further enhance the friction between the goods and the upper plate 1.

[0025] like Figure 2, Figure 4 and Figure 5 As shown, the reinforcement mechanism 5 includes multiple hollow strips 52. The top of the multiple hollow strips 52 is fixedly connected to the bottom of the upper plate 1, and the hollow strips 52 form a longitudinal support frame. Multiple reinforcing plates 54 are fixedly connected to the bottom of the multiple hollow strips 52. Multiple telescopic rods 53 are rotatably connected to the outer sides of the reinforcing plates 54. The reinforcing plates 54 are laterally connected to each hollow strip 52 to form a lateral support structure. Together with the hollow strips 52, they form a stable three-dimensional support system, which improves the overall load-bearing strength of the upper plate 1. The driving end of the telescopic rod 53 is fixedly connected to the second connecting block 51. The telescopic rod 53 is adjusted in length to adapt to the connection angle between the hollow strips 52 and the reinforcing plates 54 to form a triangular support structure. The outer sides of the second connecting block 51 are rotatably connected to the outer sides of the hollow strips 52. The frame mechanism 4 includes a guide plate 41, which is rotatably connected to the outside of the upper body plate 1. The guide plate 41 adjusts the connection posture between the equipment and the external traction device by rotating its angle to adapt to the traction requirements under different transportation scenarios. Two extension plates 45 are fixedly connected to the outer side of the upper body plate 1. The extension plates 45 ensure that the second cylinder 46 outputs power stably. The second cylinder 46 is rotatably connected inside the extension plate 45. The drive end of the second cylinder 46 is fixedly connected to the first connecting block 47. The second cylinder 46 drives the first connecting block 47 to move by venting and extending, thereby driving the guide plate 41 to rotate. The outside of the first connecting block 47 is rotatably connected to the guide plate 41. Externally, connecting block 47 transmits power to cylinder 46, and at the same time, it adapts to the angle change of guide plate 41 through rotation connection to ensure stable power transmission. Multiple fixed arcs 42 are fixedly connected to the outside of guide plate 41. The fixed arcs 42 avoid wear of traction line 43 through arc structure and ensure stable connection of traction line 43. Multiple fixed rings 44 are fixedly connected to the outside of upper plate 1. The fixed rings 44 cooperate with the fixed arcs 42 to form the connection end of traction line 43. Traction line 43 is set between fixed arcs 42 and fixed rings 44. Traction line 43 prevents guide plate 41 from angular displacement due to transportation vibration and ensures the stability of frame mechanism 4.

[0026] Working principle: When the buffer height needs to be adjusted, it can be driven by the air cylinder 35 to directly drive the buffer rod 36 up and down to achieve height adjustment. If the movement stroke of the buffer rod 36 needs to be adjusted, or the buffer mechanism 3 needs to be replaced, simply loosen the locking screw 33, slide the connecting plate 34 out from the inside of the fixing frame 31, replace the new buffer mechanism 3, slide the connecting plate 34 back into the slide groove of the fixing frame 31, and finally tighten the locking screw 33 to complete the fixation. At the same time, the strip-shaped protrusion 321 and the triangular protrusion 322 fixed on the top of the upper plate 1 together constitute the buffer protrusion assembly 32, which can effectively help enhance the stability of the equipment during operation.

[0027] When it is necessary to adjust the angle of the guide plate 41 of the frame mechanism 4, the cylinder body of the second cylinder 46 drives the connecting block 47 to move, thereby causing the guide plate 41 to rotate up and down around its connection point with the upper plate 1, so as to achieve angle adjustment. The fixing arc 42 on the outside of the guide plate 41 and the fixing ring 44 on the outside of the upper plate 1 are connected by the traction line 43, which can play an auxiliary role in fixing the angle of the adjusted guide plate 41.

[0028] In addition, the hollow strip 52 at the bottom of the upper plate 1 is connected to the reinforcing plate 54, and the telescopic rods 53 on both sides of the reinforcing plate 54 are connected to both sides of the hollow strip 52 through the connecting block 2 51 to form a stable triangular support structure, which together constitutes the reinforcement mechanism 5, significantly enhancing the load-bearing capacity of the upper plate 1 and providing a reliable guarantee for the stable operation of each mechanism.

[0029] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A non-slip low-bed semi-trailer, comprising an upper loading platform, characterized in that: Two frame mechanisms are provided on the outer side of the upper body plate, multiple reinforcing mechanisms are provided on the bottom of the upper body plate, a connecting arc plate is fixedly connected to the outer side of the upper body plate, and two buffer mechanisms are provided on the bottom side of the upper body plate. The buffer mechanism includes a fixed frame, the top of which is fixedly connected to the bottom side of the upper plate. The fixed frame has a sliding groove inside, and a connecting plate is slidably connected inside the sliding groove. A cylinder is fixedly connected to the bottom of the connecting plate, and a buffer rod is fixedly connected to the bottom of the cylinder. The top of the upper plate is provided with multiple buffer protrusion assemblies.

2. The anti-slip low-bed semi-trailer according to claim 1, characterized in that: The reinforcement mechanism includes multiple hollow strips, the tops of which are fixedly connected to the bottom of the upper plate, and multiple reinforcing plates are fixedly connected to the bottoms of which are multiple hollow strips.

3. The anti-slip low-bed semi-trailer according to claim 2, characterized in that: The mounting bracket has multiple locking screws on its external threaded connection, and the external threads of the locking screws are connected to the inside of the connecting plate.

4. The anti-slip low-bed semi-trailer according to claim 3, characterized in that: The buffer bump assembly includes a strip-shaped bump, the bottom of which is fixedly connected to the top of the upper plate, and a plurality of triangular bumps are fixedly connected to the top of the upper plate.

5. The anti-slip low-bed semi-trailer according to claim 4, characterized in that: Multiple telescopic rods are rotatably connected to the outer sides of the reinforcing plate. The driving end of each telescopic rod is fixedly connected to a connecting block two. The outer sides of the connecting block two are rotatably connected to the outer sides of the hollow strip.

6. The anti-slip low-bed semi-trailer according to claim 1, characterized in that: The frame mechanism includes a guide plate, which is rotatably connected to the outside of the superstructure plate. Two extension plates are fixedly connected to the outer side of the superstructure plate.

7. The anti-slip low-bed semi-trailer according to claim 6, characterized in that: The extension plate is rotatably connected to a second cylinder, and the drive end of the second cylinder is fixedly connected to a first connecting block. The first connecting block is rotatably connected to the outside of the guide plate.

8. The anti-slip low-bed semi-trailer according to claim 7, characterized in that: The guide plate is fixedly connected to multiple fixed arcs on its outside, and the upper plate is fixedly connected to multiple fixed rings on its outer two sides. A traction line is provided between the fixed arcs and the fixed rings.

Citation Information

Patent Citations

  • Low-bed transportation semitrailer

    CN216153894U