Container transportation semitrailer protection device

Abstract

The utility model discloses a container transportation semitrailer protection device, and relates to the technical field of container transportation. The protective device comprises a protective frame, a moving mechanism is arranged on the inner side of the protective frame, limiting mechanisms are arranged on the inner walls of the two sides of the protective frame, the moving mechanism comprises a limiting rod, the two ends of the limiting rod are fixedly connected with the inner walls of the two sides of the protective frame respectively, and two symmetrically-distributed limiting cylinders are arranged on the outer side of the limiting rod in a sliding mode. By means of the moving mechanism, stable sliding and positioning of the moving frame on the inner side of the protective frame are achieved, the accuracy and stability of moving of the moving frame are guaranteed through sliding connection of the positioning rod and the positioning cylinder, meanwhile, the moving frame is not prone to falling off, and the safety of the protective frame is improved. And the height can be limited in cooperation with a limiting mechanism, so that the purpose of adjusting the side protection height of the semi-trailer is achieved.

Description

Technical Field

[0001] This utility model relates to the field of container transportation technology, specifically a protective device for container semi-trailers. Background Technology

[0002] Container semi-trailer protective devices are suitable for scenarios that provide safety protection and stable support for semi-trailers under various road conditions, especially in long-distance transportation, in bad weather, or complex road conditions, and can effectively prevent objects from colliding with the vehicle body from the side.

[0003] However, existing technologies still have the following problems:

[0004] When using existing protective devices for container semi-trailers, most of these devices do not allow for adjustment of the side protection height. As the semi-trailer travels, gravel or large foreign objects can easily get caught in the sides during transport, potentially damaging the chassis and causing the vehicle to shift or become damaged.

[0005] To address the aforementioned problems, the inventors have proposed a protective device for container semi-trailers. Utility Model Content

[0006] To address the issue of the inability to adjust the height of the side protection, the purpose of this invention is to provide a protective device for container semi-trailers.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a protective device for container transport semi-trailers, including a protective frame, a moving mechanism provided on the inner side of the protective frame, and limiting mechanisms provided on both inner walls of the protective frame. The moving mechanism includes a limiting rod, the two ends of which are fixedly connected to the inner walls of both sides of the protective frame. Two symmetrically distributed limiting cylinders are slidably provided on the outer side of the limiting rod. A limiting plate is rotatably provided on the outer side of the limiting cylinder. A limiting lever is rotatably provided in the middle of the two limiting plates. A positioning cylinder is rotatably provided at the end of the limiting plate away from the limiting cylinder. A positioning rod is slidably provided on the inner side of the two positioning cylinders. A moving frame is slidably provided on the lower surface of the protective frame, and the inner walls of both sides of the moving frame are fixedly connected to the two ends of the positioning rod.

[0008] Preferably, the limiting mechanism includes a limiting base, one end of which is fixedly connected to the inner wall of one side of the protective frame. A driving bevel gear is rotatably provided on the inner side of the limiting base, and a driven bevel gear is meshed with the outer side of the driving bevel gear. A rotating cylinder is fixedly provided on one side of the driven bevel gear, and an ejector rod is threadedly sleeved on the inner side of the rotating cylinder. The outer side of the ejector rod is slidably attached to one end of the limiting base.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0010] 1. This utility model achieves stable sliding and positioning of the mobile frame inside the protective frame through the moving mechanism. The sliding connection between the positioning rod and the positioning cylinder ensures the accuracy and stability of the mobile frame's movement. At the same time, the height can be limited by the limiting mechanism, thereby achieving the purpose of adjusting the height of the side protection of the semi-trailer. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a schematic diagram of the structure of this utility model.

[0013] Figure 2 This is a schematic diagram of the moving mechanism structure of this utility model.

[0014] Figure 3 This is a cross-sectional schematic diagram of the limiting mechanism of this utility model.

[0015] In the diagram: 1. Protective frame; 2. Moving mechanism; 3. Limiting mechanism; 4. Mounting port; 20. Limiting rod; 21. Limiting plate; 22. Moving groove; 23. Positioning rod; 24. Positioning cylinder; 25. Limiting lever; 26. Moving frame; 27. Ventilation groove; 28. Limiting cylinder; 30. Limiting base; 31. Knob; 32. Anti-slip texture; 33. Driven bevel gear; 34. Driven bevel gear; 35. Rotating cylinder; 36. Ejector rod; 37. Sliding groove; 38. Sliding block; 39. Limiting hole. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Example: Figure 1-3As shown, this utility model provides a protective device for a container transport semi-trailer, including a protective frame 1. A moving mechanism 2 is provided on the inner side of the protective frame 1. Limiting mechanisms 3 are provided on both inner walls of the protective frame 1. The moving mechanism 2 includes a limiting rod 20. The two ends of the limiting rod 20 are fixedly connected to the inner walls of both sides of the protective frame 1. Two symmetrically distributed limiting cylinders 28 are slidably provided on the outer side of the limiting rod 20. A limiting plate 21 is rotatably provided on the outer side of the limiting cylinder 28. A limiting lever 25 is rotatably provided in the middle of the two limiting plates 21. A positioning cylinder 24 is rotatably provided at the end of the limiting plate 21 away from the limiting cylinder 28. A positioning rod 23 is slidably provided on the inner side of the two positioning cylinders 24. A moving frame 26 is slidably provided on the lower surface of the protective frame 1. The inner walls of both sides of the moving frame 26 are fixedly connected to the two ends of the positioning rod 23. Through the moving mechanism 2, firstly, the operator adjusts the angle of the limiting plate 21 to make it slide against the inner side of the moving groove 22, providing a stable guide for the sliding of the moving frame 26. Next, under the sliding connection of the two positioning cylinders 24, the positioning rod 23 moves smoothly with the sliding of the moving frame 26, ensuring the accuracy and stability of the movement of the moving frame 26. At the same time, the sliding design of the limiting cylinder 28 on the outside of the limiting rod 20 further enhances the stability of the moving frame 26 during the sliding process. When the moving frame 26 slides to the predetermined position, the operator can limit the height of the moving frame 26 from both sides through the limiting mechanism 3. The cross rotation of the limiting plate 21 can be limited by the limiting rod 25. The entire moving mechanism 2 is simple and efficient to use, improving the ease of operation and practicality of the container transport semi-trailer protection device.

[0018] The upper surface of the protective frame 1 has multiple mounting ports 4. Both the protective frame 1 and the movable frame 26 have multiple ventilation slots 27 arranged in a rectangular array on one side. The upper surface of the movable frame 26 has a movable slot 22. The inner side of the movable slot 22 slides against the limiting plate 21. The protective frame 1 can be installed on the side of the semi-trailer through the mounting ports 4. The ventilation slots 27 can reduce the air resistance. The movable slot 22 can limit the rotation of the limiting plate 21.

[0019] The limiting mechanism 3 includes a limiting base 30, one end of which is fixedly connected to the inner wall of one side of the protective frame 1. A driving bevel gear 33 is rotatably mounted on the inner side of the limiting base 30, and a driven bevel gear 34 is meshed with the outer side of the driving bevel gear 33. A rotating cylinder 35 is fixedly mounted on one side of the driven bevel gear 34, and an ejector rod 36 is threaded onto the inner side of the rotating cylinder 35. The outer side of the ejector rod 36 slides against one end of the limiting base 30. Through the limiting mechanism 3, when it is necessary to fix the position of the movable frame 26, the operator first rotates the knob 31. The knob 31 drives the driving bevel gear 33 to rotate. Due to the meshing connection between the driving bevel gear 33 and the driven bevel gear 34... The driven bevel gear 34 also rotates, which in turn drives the rotating cylinder 35 to rotate. The inner side of the rotating cylinder 35 is threaded with an ejector rod 36. Therefore, as the rotating cylinder 35 rotates, the ejector rod 36 slides against one end of the limiting base 30 and gradually pushes outward. When the outer side of the ejector rod 36 slides into the limiting holes 39 on both sides of the moving frame 26, the moving frame 26 is limited and fixed. In addition, the sliding groove 37 and the sliding block 38 slide against each other, ensuring the stability and accuracy of the ejector rod 36 during the sliding process. The entire limiting mechanism 3 is simple and easy to understand to use and easy to operate, providing a reliable limiting and fixing function for the protective device of the container transport semi-trailer.

[0020] A knob 31 is provided on the outer side of the limiting base 30. One side of the knob 31 is fixedly connected to the drive bevel gear 33. The outer side of the knob 31 is provided with anti-slip texture 32. A sliding block 38 is fixedly provided on the inner side of one end of the limiting base 30. A sliding groove 37 is provided on the outer side of the ejector rod 36. The sliding groove 37 slides and fits in contact with the sliding block 38. Multiple limiting holes 39 are provided on both sides of the moving frame 26. The limiting holes 39 slide and fit in contact with the outer side of the ejector rod 36. The sliding groove 37 slides and fits in contact with the sliding block 38, ensuring the stability and accuracy of the ejector rod 36 during the sliding process. The knob 31 and anti-slip texture 32 make it easy for the operator to rotate the drive bevel gear 33. The limiting holes 39 provide a variety of height options.

[0021] Working principle: Through the moving mechanism 2, firstly, the operator adjusts the angle of the limiting plate 21 to make it slide against the inner side of the moving groove 22, providing a stable guide for the sliding of the moving frame 26. Next, the positioning rod 23, under the sliding connection of the two positioning cylinders 24, moves smoothly with the sliding of the moving frame 26, ensuring the accuracy and stability of the movement of the moving frame 26. Simultaneously, the sliding design of the limiting cylinder 28 on the outside of the limiting rod 20 further enhances the stability of the moving frame 26 during the sliding process. When the moving frame 26 slides to the predetermined position, the operator can limit the height of the moving frame 26 from both sides through the limiting mechanism 3. The limiting lever 25 can limit the cross rotation of the limiting plate 21. The entire process of using the moving mechanism 2 is simple and efficient, improving the ease of operation and practicality of the container transport semi-trailer protection device.

[0022] When the position of the movable frame 26 needs to be fixed by the limiting mechanism 3, the operator first rotates the knob 31. The knob 31 drives the drive bevel gear 33 to rotate. Since the drive bevel gear 33 is meshed with the driven bevel gear 34, the driven bevel gear 34 also rotates, which in turn drives the rotating cylinder 35 to rotate. The inner side of the rotating cylinder 35 is threaded with an ejector rod 36. Therefore, as the rotating cylinder 35 rotates, the ejector rod 36 slides against one end of the limiting base 30 and gradually pushes outward. When the outer side of the ejector rod 36 slides into the limiting holes 39 on both sides of the movable frame 26, the movable frame 26 is fixed. In addition, the sliding groove 37 and the sliding block 38 slide against each other, ensuring the stability and accuracy of the ejector rod 36 during the sliding process. The entire limiting mechanism 3 is simple and easy to understand to use and easy to operate, providing a reliable limiting and fixing function for the protective device of the container transport semi-trailer.

[0023] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A protective device for a container transport semi-trailer, comprising a protective frame (1), characterized in that: The inner side of the protective frame (1) is provided with a moving mechanism (2), and the inner walls on both sides of the protective frame (1) are provided with limiting mechanisms (3); The moving mechanism (2) includes a limiting rod (20), the two ends of which are fixedly connected to the inner walls of the two sides of the protective frame (1). Two symmetrically distributed limiting cylinders (28) are slidably provided on the outer side of the limiting rod (20). A limiting plate (21) is rotatably provided on the outer side of the limiting cylinder (28). A limiting lever (25) is rotatably provided in the middle of the two limiting plates (21). A positioning cylinder (24) is rotatably provided at the end of the limiting plate (21) away from the limiting cylinder (28). A positioning rod (23) is slidably provided on the inner side of the two positioning cylinders (24). A moving frame (26) is slidably provided on the lower surface of the protective frame (1). The inner walls of the two sides of the moving frame (26) are fixedly connected to the two ends of the positioning rod (23).

2. The protective device for a container semi-trailer as described in claim 1, characterized in that, The limiting mechanism (3) includes a limiting base (30), one end of which is fixedly connected to the inner wall of one side of the protective frame (1). A driving bevel gear (33) is rotatably provided on the inner side of the limiting base (30), and a driven bevel gear (34) is meshed with the outer side of the driving bevel gear (33). A rotating cylinder (35) is fixedly provided on one side of the driven bevel gear (34), and an ejector rod (36) is threadedly sleeved on the inner side of the rotating cylinder (35). The outer side of the ejector rod (36) is slidably attached to one end of the limiting base (30).

3. The protective device for a container semi-trailer as described in claim 1, characterized in that, The upper surface of the protective frame (1) has multiple mounting ports (4).

4. A protective device for a container transport semi-trailer as described in claim 1, characterized in that, Both the protective frame (1) and the movable frame (26) have multiple ventilation slots (27) arranged in a rectangular array on one side.

5. A protective device for a container semi-trailer as described in claim 1, characterized in that, The upper surface of the movable frame (26) is provided with a movable groove (22), and the inner side of the movable groove (22) is slidably attached to the limiting plate (21).

6. A protective device for a container transport semi-trailer as described in claim 2, characterized in that, The outer side of the limiting base (30) is provided with a knob (31), one side of which is fixedly connected to the drive bevel gear (33), and the outer side of the knob (31) is provided with anti-slip texture (32).

7. A protective device for a container transport semi-trailer as described in claim 2, characterized in that, A sliding block (38) is fixedly provided on the inner side of one end of the limiting base (30), and a sliding groove (37) is provided on the outer side of the ejector rod (36), and the sliding groove (37) slides and fits with the sliding block (38).

8. A protective device for a container semi-trailer as described in claim 1, characterized in that, The movable frame (26) has multiple equidistant limiting holes (39) on both sides, and the limiting holes (39) slide against the outer side of the ejector rod (36).

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