Low flatbed semitrailer frame structure

Abstract

The utility model discloses a low flatbed semitrailer frame structure relates to semi trailer technical field, including frame body, the lateral wall of frame body is installed with pivot, the outer wall of pivot is provided with first baffle. The utility model discloses through the first baffle, the storage bin, the cylinder, the sliding slot, the second baffle and the sliding block that set up, through starting cylinder and promoting or contracting, can adjust the height of second baffle, and the second baffle is elevated to the position of matching with the height of goods, can realize multi -gear height adjustment according to the height of goods, cover the transport demand of heavy -duty tall equipment from light -duty low goods, need not change special frame or additional installation guard device, solve the pain point that traditional semi trailer baffle height is fixed, cannot adapt different height goods transport, through the guard assembly of modularization design, realize the safe limiting and convenient adaptation in the goods transport process, and the transport flexibility and versatility are improved greatly.

Description

Technical Field

[0001] This utility model relates to the field of semi-trailer technology, specifically to a low-flatbed semi-trailer frame structure. Background Technology

[0002] As a core piece of equipment for transporting heavy equipment and oversized cargo, the frame structure of low-flatbed semi-trailers directly determines transportation safety, cargo adaptability, and durability. With the continuous improvement of the logistics industry's requirements for efficiency, compliance, and safety in heavy-duty transportation, traditional frame structures have gradually exposed many shortcomings in adaptability and safety, making it difficult to meet diversified transportation scenarios and high-standard compliance requirements. Therefore, a low-flatbed semi-trailer frame structure is needed.

[0003] Existing low-flatbed semi-trailer frame structures, when in operation, often rely on metal welded parts or one-piece plastic molded parts for side protection devices, lacking effective buffer and energy absorption structures. They only provide basic protection, and when encountering a side impact, the impact force is directly transmitted to the frame body, easily leading to cracking of the frame welds, cargo displacement, and even rollover accidents. Most existing low-flatbed semi-trailer frames are integral structures with fixed key parameters such as baffle height and protection range, making it impossible to flexibly adjust according to cargo height and volume. For transporting oversized cargo, fixed baffles can restrict loading space, while for transporting low cargo, exposed protective structures can affect loading and unloading convenience, failing to meet the rapid adaptation requirements of efficient transportation scenarios. Therefore, there is an urgent need for a new low-flatbed semi-trailer frame structure. Utility Model Content

[0004] Based on this, the purpose of this utility model is to provide a low-flatbed semi-trailer frame structure to solve the problem that, in the use of existing low-flatbed semi-trailer frame structures, the side protection devices of traditional frames are mostly metal welded parts or plastic one-piece molded parts, lacking an effective buffer energy absorption structure, and can only play a basic blocking role. When encountering a side impact, the impact force is directly transmitted to the frame body, which can easily lead to cracking of the frame welds, displacement of cargo, and even rollover accidents. Existing low-flatbed semi-trailer frames are mostly integral structures with fixed key parameters such as baffle height and protection range, which cannot be flexibly adjusted according to the height and volume of cargo. For the transportation of oversized cargo, fixed baffles can restrict loading space, while when transporting low cargo, the exposed protective structure will affect the convenience of loading and unloading, and cannot meet the rapid adaptation requirements of efficient transportation scenarios.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a low-flatbed semi-trailer frame structure, including a frame body, a rotating shaft installed on the side wall of the frame body, a first baffle provided on the outer wall of the rotating shaft, a storage compartment opened on the inner wall of the first baffle, a cylinder fixedly connected to the outer wall of the first baffle, a sliding groove opened on the side wall of the storage compartment, a second baffle installed on the inner wall of the storage compartment, a slider provided on the side wall of the second baffle, and a buckle provided on the outer wall of the first baffle.

[0006] A sleeve rod is fixedly connected to the inner wall of the frame body. A telescopic rod is installed on the inner wall of the sleeve rod. A buffer spring is installed between the sleeve rod and the telescopic rod. A buffer plate is provided at one end of the telescopic rod. A warning light is fixedly connected to the inner wall of the buffer plate. A bolt passes through the inner wall of the warning light.

[0007] Preferably, the first baffle forms a rotating structure with the frame body via a rotating shaft, and the rotating shaft is movably connected to the frame body.

[0008] Preferably, the second baffle is movably connected to the first baffle, and the second baffle forms a lifting structure with the storage compartment via a cylinder.

[0009] Preferably, the second baffle forms a sliding structure through a slider and a groove, and the slider and the groove are engaged and connected.

[0010] Preferably, the telescopic rod is inserted into the sleeve rod, and the telescopic rod is sleeved with the buffer spring.

[0011] Preferably, the warning light is fixed to the buffer plate by bolts and threads, and the buffer plate forms a telescopic structure with the inner wall of the vehicle frame body by a buffer spring.

[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model, through the setting of a first baffle, storage compartment, cylinder, slide, second baffle and slider, can adjust the height of the second baffle by pushing or retracting it through the activation of the cylinder, raising the second baffle to a position matching the height of the goods. It can achieve multiple height adjustments according to the height of the goods, covering the transportation needs from light and low goods to heavy and tall equipment. There is no need to replace the special frame or add extra protective devices, solving the pain point of the fixed height of the baffle of traditional semi-trailers and its inability to adapt to the transportation of goods of different heights. Through the modular design of the protective components, it realizes safe limiting and convenient adaptation during the transportation of goods, greatly improving the transportation flexibility and versatility. 2. This utility model, through the setting of a sleeve rod, telescopic rod, buffer spring, and buffer plate, when the buffer plate on the side of the frame body is impacted, the buffer plate is forced to retract the telescopic rod towards the sleeve rod, which then compresses the buffer spring. The buffer spring's buffering characteristics are then used to buffer, release, and absorb the impact force, effectively protecting the frame body and the cargo. This ensures comprehensive protection for the sides of the cargo and the frame body, solving the problem of traditional frame sides lacking effective buffer protection and impacts easily leading to frame deformation or cargo damage, and significantly improving structural safety during transportation. Attached Figure Description

[0013] Figure 1 This is a perspective view of the present utility model; Figure 2 This is a schematic diagram of the internal structure of the first baffle of this utility model; Figure 3 This is a schematic diagram of the internal structure of the frame body of this utility model; Figure 4 This is a schematic diagram of the structure of the buffer plate of this utility model.

[0014] In the diagram: 1. Frame body; 2. Axle; 3. First baffle; 4. Storage compartment; 5. Cylinder; 6. Slide; 7. Second baffle; 8. Slider; 9. Buckle; 10. Sleeve; 11. Telescopic rod; 12. Buffer spring; 13. Buffer plate; 14. Warning light; 15. Bolt. Detailed Implementation

[0015] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0016] The embodiments of this utility model will be described below based on its overall structure.

[0017] Please see Figures 1-4A low-flatbed semi-trailer frame structure includes a frame body 1. A rotating shaft 2 is installed on the side wall of the frame body 1. A first baffle 3 is provided on the outer wall of the rotating shaft 2. A storage compartment 4 is formed on the inner wall of the first baffle 3. A cylinder 5 is fixedly connected to the outer wall of the first baffle 3. A sliding groove 6 is formed on the side wall of the storage compartment 4. A second baffle 7 is installed on the inner wall of the storage compartment 4. A slider 8 is provided on the side wall of the second baffle 7. A buckle 9 is provided on the outer wall of the first baffle 3. The first baffle 3 forms a rotating structure with the frame body 1 through the rotating shaft 2, and the rotating shaft 2 is movably connected to the frame body 1. The second baffle 7 is movably connected to the first baffle 3, and the second baffle 7 forms a lifting structure with the storage compartment 4 through the cylinder 5. The second baffle 7 forms a sliding structure with the sliding slider 8 and the sliding groove 6, and the slider 8 and the sliding groove 6 are engaged. When using the device, if the height of the cargo... When the second baffle 7 needs to be raised due to its height, the cylinder 5 receives an inflation command, the piston rod extends upward, and drives the second baffle 7 to move upward synchronously through the flange. At this time, the sliders 8 on both sides of the second baffle 7 slide vertically along the slide groove 6. The slide groove 6 plays a precise guiding and limiting role for the sliders 8, preventing the second baffle 7 from swaying or tilting during the movement. When the second baffle 7 rises to a position that matches the height of the goods, the cylinder 5 stops inflating and maintains pressure, so that the second baffle 7 is stable at that height. Together with the first baffle 3, it forms a complete protective barrier, blocking the goods from both sides or the ends, and preventing the goods from slipping due to bumps or turns during transportation. It can achieve multiple height adjustments according to the height of the goods, covering the transportation needs from light and low goods to heavy and tall equipment, without the need to replace the special frame or add additional protective devices.

[0018] Please see Figures 1-4 A low-flatbed semi-trailer frame structure includes a sleeve rod 10 fixedly connected to the inner wall of the frame body 1, a telescopic rod 11 installed on the inner wall of the sleeve rod 10, a buffer spring 12 installed between the sleeve rod 10 and the telescopic rod 11, a buffer plate 13 provided at one end of the telescopic rod 11, a warning light 14 fixedly connected to the inner wall of the buffer plate 13, and a bolt 15 penetrating the inner wall of the warning light 14. The telescopic rod 11 is inserted into the sleeve rod 10 and sleeved with the buffer spring 12. The warning light 14 is threadedly fixed to the buffer plate 13 by the bolt 15, and the buffer plate 13 forms a connection with the inner wall of the frame body 1 through the buffer spring 12. The telescopic structure, when in use, when the buffer plate 13 on the side of the frame body 1 is impacted, the buffer plate 13 is subjected to force and moves inward into the frame body 1, distributing the force evenly to multiple telescopic rods 11, and simultaneously driving the telescopic rods 11 to retract towards the sleeve rod 10, then compressing the buffer spring 12. The buffer spring 12 converts kinetic energy into elastic potential energy through elastic deformation, buffering, releasing and absorbing the impact force. After the impact force disappears, the buffer spring 12 releases elastic potential energy, pushing the telescopic rods 11 and the buffer plate 13 back to their initial positions, ensuring that the system is reusable and effectively protecting the frame body 1 and the cargo.

[0019] Working principle: In use, first move the device to a suitable position. When the goods are loaded onto the frame body 1, then activate cylinder 5 to push or retract. At this time, the sliders 8 on both sides of the second baffle 7 slide vertically along the slide groove 6. The slide groove 6 provides precise guidance and limit for the sliders 8, preventing the second baffle 7 from swaying or tilting during movement. The height of the second baffle 7 can then be adjusted until it is raised to a position that matches the height of the goods. When the buffer plate 13 on the side of the frame body 1 is impacted, the buffer plate 13 is subjected to force and moves into the frame body 1, simultaneously driving the telescopic rod 11 to retract towards the sleeve rod 10, then compressing the buffer spring 12. The buffering characteristics of the buffer spring 12 are then used to buffer, release, and absorb the impact force. This completes the use of the device. The contents not described in detail in this manual are existing technologies known to those skilled in the art.

[0020] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A low-flatbed semi-trailer frame structure, comprising a frame body (1), characterized in that: The frame body (1) has a rotating shaft (2) installed on its side wall. The outer wall of the rotating shaft (2) is provided with a first baffle (3). The inner wall of the first baffle (3) is provided with a storage compartment (4). The outer wall of the first baffle (3) is fixedly connected with a cylinder (5). The side wall of the storage compartment (4) is provided with a sliding groove (6). The inner wall of the storage compartment (4) is provided with a second baffle (7). The side wall of the second baffle (7) is provided with a slider (8). The outer wall of the first baffle (3) is provided with a buckle (9). A sleeve rod (10) is fixedly connected to the inner wall of the frame body (1). A telescopic rod (11) is installed on the inner wall of the sleeve rod (10). A buffer spring (12) is installed between the sleeve rod (10) and the telescopic rod (11). A buffer plate (13) is provided at one end of the telescopic rod (11). A warning light (14) is fixedly connected to the inner wall of the buffer plate (13). A bolt (15) passes through the inner wall of the warning light (14).

2. The low-flatbed semi-trailer frame structure according to claim 1, characterized in that: The first baffle (3) forms a rotating structure with the frame body (1) through the rotating shaft (2), and the rotating shaft (2) is movably connected to the frame body (1).

3. The low-flatbed semi-trailer frame structure according to claim 1, characterized in that: The second baffle (7) is movably connected to the first baffle (3), and the second baffle (7) forms a lifting structure with the storage compartment (4) through the cylinder (5).

4. The low-flatbed semi-trailer frame structure according to claim 1, characterized in that: The second baffle (7) forms a sliding structure with the slider (8) and the groove (6), and the slider (8) and the groove (6) are engaged and connected.

5. The low-flatbed semi-trailer frame structure according to claim 1, characterized in that: The telescopic rod (11) is inserted into the sleeve rod (10), and the telescopic rod (11) is sleeved with the buffer spring (12).

6. The low-flatbed semi-trailer frame structure according to claim 1, characterized in that: The warning light (14) is threadedly fixed to the buffer plate (13) by bolts (15), and the buffer plate (13) forms a telescopic structure with the inner wall of the frame body (1) by buffer springs (12).

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