A low-bed semi-trailer
By designing a limiting device on a low-bed semi-trailer and utilizing components such as slide rails, sliders, stop bars, and nylon ropes, the problem of cargo skewing and falling caused by flexible limiting components was solved, achieving stable cargo limiting and efficient transportation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LIANGSHAN FEICHI TRAILER MFG
- Filing Date
- 2025-09-05
- Publication Date
- 2026-07-03
AI Technical Summary
Existing low-flatbed semi-trailers have poor limiting effect during transportation due to the tarpaulin and thick hemp rope being flexible limiting components, which makes the cargo prone to tilting and falling.
The device employs a limiting mechanism, including components such as slide rails, sliders, stop bars, nylon ropes, and limiting plates. Through the cooperation of sliding and rotating rods, it achieves stable limiting and fixing of goods.
It improves the stability of goods during transportation, prevents goods from becoming loose or falling, and enhances transportation efficiency and the practicality of semi-trailers.
Smart Images
Figure CN224447620U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of semi-trailer technology, and in particular to a low-bed semi-trailer for transport. Background Technology
[0002] Low-bed semi-trailers are specially designed transport vehicles primarily used for transporting large, heavy equipment and machinery. Their main feature is a lower cargo box than ordinary semi-trailers, allowing for easier loading of tall and heavy goods such as construction machinery, heavy machinery, and industrial equipment.
[0003] Existing low-flatbed semi-trailers typically load and transport goods by first stacking them in an orderly fashion on the trailer bed, then securing them with a tarpaulin and thick hemp rope. However, in actual use, it has been found that the tarpaulin and thick hemp rope are relatively flexible securing components with poor effectiveness. When vibrations or bumps occur during transport, the goods may tilt severely to one side, or even fall and be damaged. Utility Model Content
[0004] The technical problem this utility model aims to solve is that tarpaulins and thick hemp ropes are relatively flexible limiting components with poor limiting effect. When shaking or bumping occurs during transportation, the goods may be severely tilted to one side, or even fall and be damaged.
[0005] The technical solution adopted by this utility model to solve its technical problem is: a low-bed semi-trailer, including a truck bed, one end of which is connected to a truck head, and a limiting device is provided on the surface of the truck bed, wherein the limiting device uses a stop bar and nylon rope to limit and fix the goods stacked on the truck bed.
[0006] The effect achieved by the above components is as follows: when the low-bed semi-trailer is transporting goods, the goods are first stacked on the truck bed in sequence, then the limiting devices on both sides of the truck bed are adjusted and operated, and finally the tarpaulin is fixed on the stack of goods.
[0007] Preferably, the limiting device includes two slide rails, which are respectively installed and fixed on both sides of the surface of the truck bed. Several sliders are slidably connected to the inner wall of the slide rails. A stop bar is fixedly connected to the surface of the slider. An assembly frame is fixedly connected to one side of the truck bed. Two nylon ropes are fixedly connected to both sides of the surface of the assembly frame. The two nylon ropes on the same side of the surface of the assembly frame pass through several stop bars on the same slide rail. Two rotating rods are rotatably connected to the surface of the stop bar. A limiting plate is threaded through the arc surface of the rotating rod. The limiting plate is slidably disposed with the surface of the stop bar.
[0008] The effects achieved by the above components are: when transporting goods, the low-bed semi-trailer can better ensure the stability and positioning of the goods, making them less prone to loosening. This allows it to withstand more complex transportation environments, reduces the risk of goods falling and being damaged, and improves the practicality and transportation efficiency of the semi-trailer.
[0009] Preferably, the limiting device further includes a fixing ring threaded onto the arc surface of the rotating rod, wherein the fixing ring improves the positional stability of the limiting plate.
[0010] The effect achieved by the above components is as follows: by setting the fixing ring, after the limiting plate is pressed against the surface of the nylon rope by adjusting the rotating rod, the fixing ring is rotated so that the fixing ring presses against the surface of the limiting plate. At this time, the limiting plate is not easy to rotate and loosen.
[0011] Preferably, two positioning frames are fixedly connected to both sides of the surface of the stop bar, wherein the positioning frames improve the accuracy of limiting and fixing the nylon rope.
[0012] The effect achieved by the above components is that, by setting the positioning frame, the nylon rope can be clamped and squeezed by the positioning frame and the limiting plate when it is limited and fixed, thereby making the nylon rope more secure and stable.
[0013] Preferably, reinforcing strips are installed on both sides of the surface of the limiting plate, wherein the reinforcing strips improve the functionality of the limiting plate.
[0014] The effect achieved by the above components is that, through the setting of the rubber reinforcing strip, when the limiting plate contacts and presses against the surface of the nylon rope, the friction is further increased, thereby more stably limiting and fixing the nylon rope.
[0015] Preferably, the two nylon ropes on the same side of the assembly frame are connected to a winding shaft at the same end, wherein the two ends of the winding shaft are respectively rotatably connected to an assembly plate, and the assembly plate is fixedly connected to the surface of the stop bar. The winding shaft is fitted with a positioning ring by means of surface threads.
[0016] The effect achieved by the above components is as follows: after adjusting the position of several stops and adjusting the length of the nylon rope, the winding shaft is rotated to wind up the two nylon ropes. Finally, the positioning ring is rotated by the thread until it contacts and presses against the surface of the assembly plate, so that the winding shaft remains as stable as possible, thereby preventing the nylon rope from becoming excessively scattered and affecting the loading and unloading of goods.
[0017] Preferably, insert rods are inserted through the two slide rail surfaces away from the mounting frame, and one end of each insert rod is fixedly connected to a reinforcing plate.
[0018] The effect achieved by the above components is that, through the setting of the reinforcing plate and the insert rod, the reinforcing plate can contact and squeeze the rear end of the goods, thereby making the goods stacked more securely.
[0019] Preferably, a positioning plate is installed on the surface of the truck bed, wherein the surface of the positioning plate has a plurality of evenly distributed holes, and a fixing head is inserted through the holes on the surface of the positioning plate. A combination rod is inserted through the surface of the fixing head, and the two ends of the combination rod are respectively slidably inserted into the mounting grooves on the side stops.
[0020] The effect achieved by the above components is as follows: after the positions of several stop bars are fixed, the two ends of the combined rod are respectively inserted into the mounting grooves on the surfaces of the two outermost stop bars. Then, the combined rod is rotated to make it flat and continues to slide downwards until it contacts the positioning plate on the surface of the truck bed. Then, the fixing head is passed through the holes on the surface of the combined rod and the positioning plate. At this time, the position of the wire rope and the stop bars can be better maintained, and slippage is less likely to occur, thus better limiting the cargo.
[0021] The beneficial effects of this utility model are:
[0022] This utility model of a low-flatbed semi-trailer can better ensure the stable positioning of goods during transportation, making them less prone to loosening. This allows it to withstand more complex transportation environments, reducing the risk of goods falling and getting damaged, and improving the practicality and transportation efficiency of the semi-trailer. Attached Figure Description
[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0024] Figure 1 This is a schematic diagram of the structure of this utility model;
[0025] Figure 2 This is a schematic diagram of the structure of the truck bed of this utility model;
[0026] Figure 3 This is a schematic diagram of the limiting device of this utility model;
[0027] Figure 4 This is a utility model Figure 3 Enlarged view of point A;
[0028] Figure 5 This is an exploded view of part of the structure of this utility model;
[0029] Figure 6 This is a schematic diagram of the structure of the stop bar of this utility model.
[0030] Legend: 1. Cart bed; 2. Cart head; 3. Limiting device; 31. Slide rail; 32. Slider; 33. Stop bar; 34. Assembly frame; 35. Nylon rope; 36. Rotating rod; 37. Limiting plate; 38. Fixing ring; 39. Positioning frame; 310. Reinforcing strip; 311. Assembly plate; 312. Rewinding shaft; 313. Positioning ring; 314. Reinforcing plate; 315. Insert rod; 316. Combination rod; 317. Mounting groove; 318. Positioning plate; 319. Fixing head. Detailed Implementation
[0031] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.
[0032] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" or "linked" should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral connection; it can refer to a mechanical connection or an electrical connection; it can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0033] Figure 1 and Figure 2 The low-bed semi-trailer shown includes a truck bed 1, with a truck head 2 connected to one end of the truck bed 1. A limiting device 3 is provided on the surface of the truck bed 1, wherein the limiting device 3 uses a stop bar 33 and a nylon rope 35 to limit and fix the goods stacked on the truck bed 1.
[0034] Figure 1 - Figure 4The limiting device 3 shown includes two slide rails 31, which are respectively installed and fixed on both sides of the surface of the truck bed 1. Several sliders 32 are slidably connected to the inner wall of the slide rails 31. A stop bar 33 is fixedly connected to the surface of the slider 32. An assembly frame 34 is fixedly connected to one side of the truck bed 1. Two nylon ropes 35 are fixedly connected to both sides of the surface of the assembly frame 34. The two nylon ropes 35 on the same side of the surface of the assembly frame 34 are connected to several stop bars 33 on the same slide rail 31. Two rotating rods 36 are rotatably connected to the surface of the stop bar 33. A limiting plate 37 is threaded through the arc surface of the rotating rod 36. The limiting plate 37 is slidably connected to the surface of the stop bar 33. When the low-bed semi-trailer is transporting goods, the goods are first stacked on the truck bed 1 in sequence, and then the several stop bars 33 on both sides are slidably connected, so that the sliders 32 fixedly connected to one end of the stop bar 33 are slidably connected to the slide rail 32. Block 32 slides on the inner wall of slide rail 31, making the position of the stop bar 33 evenly distributed. The wire rope on the mounting frame 34 slides on the inner wall of the stop bar 33. Then, the rotating rod 36 on the stop bar 33 is rotated. The rotation of the rotating rod 36 will drive the limiting plate 37 to slide on the surface of the stop bar 33 and move closer to the nylon rope 35 until the two ends of the limiting plate 37 contact and press against the surface of the nylon rope 35, fixing the length of the nylon rope 35. This allows several stop bars 33 and nylon ropes 35 to limit and fix the cargo. Then, the ends of two nylon ropes 35 on the same horizontal plane are connected and fixed to each other. Finally, the tarpaulin is fixed to the cargo stack. At this time, when the low flatbed semi-trailer is transporting cargo, it can better ensure the stable positioning of the cargo and prevent it from becoming loose. This allows it to withstand more complex transportation environments and prevents cargo from falling and being damaged, thus improving the practicality and transportation efficiency of the semi-trailer.
[0035] Figure 3 and Figure 4 The limiting device 3 shown also includes a fixing ring 38 threaded onto the arc surface of the rotating rod 36. The fixing ring 38 improves the positional stability of the limiting plate 37. By setting the fixing ring 38, after the limiting plate 37 is adjusted by the rotating rod 36 to contact and press against the surface of the nylon rope 35, rotating the fixing ring 38 presses it against the surface of the limiting plate 37. At this time, the limiting plate 37 is less likely to rotate and loosen. Two positioning frames 39 are fixedly connected to both sides of the surface of the stop rod 33. The positioning frames 39 improve the limiting and fixing of the nylon rope 35. By setting the positioning frames 39, the nylon rope 35 can be clamped and squeezed by the positioning frames 39 and the limiting plate 37 when it is limited and fixed, thereby making the nylon rope 35 more secure and stable.
[0036] Figure 4 and Figure 6Reinforcing strips 310 are installed on both sides of the surface of the limiting plate 37 shown. The reinforcing strips 310 improve the functionality of the limiting plate 37. The rubber reinforcing strips 310 increase the friction when the limiting plate 37 contacts and presses against the surface of the nylon rope 35, thus more stably limiting and fixing the nylon rope 35. The two nylon ropes 35 on the same side of the assembly frame 34 are connected to the same end by a winding shaft 312. The two ends of the winding shaft 312 are respectively rotatably connected to the assembly plate 311. The assembly plate 311 is fixedly connected to the surface of the stop bar 33. The winding shaft 312 is fitted with a positioning ring 313 by means of surface threads. After adjusting the position of several stop bars 33 and adjusting the length of the nylon rope 35, the winding shaft 312 is rotated to wind up the two nylon ropes 35. Finally, the positioning ring 313 is rotated by threads until it contacts and presses against the surface of the assembly plate 311, so that the winding shaft 312 remains as stable as possible, thereby preventing the nylon rope 35 from becoming excessively scattered and affecting the loading and unloading of goods.
[0037] Figure 4 and Figure 5 Two slide rails 31, shown, have insert rods 315 inserted through their surfaces on the surfaces of the stop bars 33 away from the assembly frame 34. One end of each insert rod 315 is fixedly connected to a reinforcing plate 314. The reinforcing plate 314 and insert rods 315 allow the reinforcing plate 314 to contact and compress the rear end of the goods, making the goods stacked more securely. A positioning plate 318 is installed on the surface of the truck bed 1. The positioning plate 318 has several evenly distributed holes, and a fixing head 319 is inserted through these holes. A combination rod 3 is inserted through the surface of the fixing head 319. 16. The two ends of the combination rod 316 are respectively slidably inserted into the mounting grooves 317 on the two side stops 33. After the positions of several stops 33 are fixed, the two ends of the combination rod 316 are respectively inserted into the mounting grooves 317 on the surface of the two outermost stops 33. Then, the combination rod 316 is rotated to make it flat and continues to slide downward until it contacts the positioning plate 318 on the surface of the truck bed 1. Then, the fixing head 319 passes through the holes on the surface of the combination rod 316 and the positioning plate 318. At this time, the position of the wire rope and the stops 33 can be better maintained, and it is not easy to slip, thus better limiting the cargo.
[0038] Working principle: When the low-bed semi-trailer is transporting goods, the goods are first stacked on the truck bed 1. Then, several stop bars 33 on both sides are slid, causing the sliders 32 fixedly connected to one end of the stop bars 33 to slide on the inner wall of the slide rail 31, so that the positions of the stop bars 33 are evenly distributed. The wire rope on the mounting frame 34 will slide on the inner wall of the stop bars 33. Then, the rotating rod 36 on the stop bar 33 is rotated. The rotation of the rotating rod 36 will drive the limiting plate 37 to slide on the surface of the stop bar 33 and move closer to the nylon rope 35 until the limiting plate 37 is reached. The two ends of the nylon rope 35 are pressed against the surface of the nylon rope 35 to fix the length of the nylon rope 35. Several stops 33 and nylon rope 35 limit and fix the cargo. Then the ends of two nylon ropes 35 on the same horizontal plane are connected and fixed to each other. Finally, the tarpaulin is fixed to the cargo stack. At this time, when the low flatbed semi-trailer is transporting cargo, it can better ensure the stable positioning of the cargo and is not easy to loosen. This can withstand more complex transportation environments and prevent the cargo from falling and being damaged, thus improving the practicality and transportation efficiency of the semi-trailer.
[0039] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.
Claims
1. A low-bed semi-trailer, comprising a cargo bed (1), characterized in that: One end of the truck bed (1) is connected to a truck head (2), and a limiting device (3) is provided on the surface of the truck bed (1). The limiting device (3) uses a stop bar (33) and a nylon rope (35) to limit and fix the goods stacked on the truck bed (1).
2. The low-bed semi-trailer according to claim 1, characterized in that: The limiting device (3) includes two slide rails (31), which are respectively installed and fixed on both sides of the surface of the truck bed (1). Several sliders (32) are slidably connected to the inner wall of the slide rail (31). A stop bar (33) is fixedly connected to the surface of the slider (32). An assembly frame (34) is fixedly connected to one side of the truck bed (1). Two nylon ropes (35) are fixedly connected to both sides of the surface of the assembly frame (34). The two nylon ropes (35) on the same side of the surface of the assembly frame (34) are connected through the several stop bars (33) on the same slide rail (31). Two rotating rods (36) are rotatably connected to the surface of the stop bar (33). A limiting plate (37) is threadedly connected through the arc surface of the rotating rod (36). The limiting plate (37) is slidably connected to the surface of the stop bar (33).
3. A low-bed semi-trailer for transporting goods according to claim 2, characterized in that: The limiting device (3) also includes a fixing ring (38) threaded onto the arc surface of the rotating rod (36), wherein the fixing ring (38) improves the position stability of the limiting plate (37).
4. A low-bed semi-trailer for transporting goods according to claim 2, characterized in that: Two positioning frames (39) are fixedly connected to both sides of the surface of the stop bar (33), wherein the positioning frames (39) improve the accuracy of the limiting and fixing of the nylon rope (35).
5. A low-bed semi-trailer for transporting goods according to claim 2, characterized in that: The limiting plate (37) is equipped with reinforcing strips (310) on both sides of its surface, wherein the reinforcing strips (310) improve the functionality of the limiting plate (37).
6. A low-bed semi-trailer for transporting goods according to claim 2, characterized in that: The two nylon ropes (35) on the same side of the assembly frame (34) are connected to the same end of a winding shaft (312). The two ends of the winding shaft (312) are respectively connected to the assembly plate (311) through which they rotate. The assembly plate (311) is fixedly connected to the surface of the stop bar (33). The winding shaft (312) is fitted with a positioning ring (313) by means of surface threads.
7. A low-bed semi-trailer for transporting goods according to claim 2, characterized in that: Insert rods (315) are inserted through the surfaces of the two slide rails (31) away from the mounting frame (34) on the surface of the stop bar (33), and one end of the two insert rods (315) is fixedly connected to a reinforcing plate (314).
8. A low-bed semi-trailer for transporting goods according to claim 2, characterized in that: The surface of the truck bed (1) is equipped with a positioning plate (318), wherein the surface of the positioning plate (318) is provided with a number of evenly distributed holes, and a fixing head (319) is inserted through the holes on the surface of the positioning plate (318). A combination rod (316) is inserted through the surface of the fixing head (319), and the two ends of the combination rod (316) are respectively slidably inserted into the mounting grooves (317) on the two side stops (33).