High-strength traction structure for semitrailer

Abstract

The high-strength traction structure comprises a steel sleeve, a steel column and a stud, the steel column is inserted into the steel sleeve from an insertion hole, a second spring is installed at the bottom end of the interior of the steel sleeve below a movable plate, fixing frames are welded to the two sides of the steel sleeve, first springs are installed at the top ends of the interiors of the two fixing frames, and a second spring is installed at the top end of the interior of the stud. According to the high-strength traction structure for the semitrailer, through the arrangement of the first spring and the second spring, after the steel column and the steel sleeve are fixed between the semitrailer and the trailer, when shaking is generated in the driving process, the steel column and the steel sleeve are fixed to the semitrailer and the trailer through the first spring and the second spring, the steel column and the steel sleeve are fixed to the semitrailer and the trailer, and therefore the semitrailer and the trailer can be pulled out. The steel column drives the movable plate to move and compress the second spring in the steel sleeve, in the process that the second spring is compressed, the connecting plates on the two sides of the steel column pull the two first springs, the first springs and the second springs pull each other to provide buffering, shaking and impact force between the semitrailer and the trailer are reduced, and faults are not prone to occurring.

Description

Technical Field

[0001] The utility model belongs to the technical field of traction structures, in particular to a high-strength traction structure for a semi-trailer. Background Art

[0002] The high-strength traction structure of a semi-trailer is an important part specially designed to ensure the stability and safety of the connection between the semi-trailer and the trailer. This structure usually includes several key components and is designed to withstand heavy loads and provide excellent traction performance and durability.

[0003] When a semi-trailer moves while towing a trailer, there will be a certain amount of shaking, which will affect the connection between the semi-trailer and the trailer. When the trailer shakes during driving, there will be relative movement between it and the semi-trailer. This relative movement will cause the trailer to impact the semi-trailer. The impact force exerted by the trailer may affect the stability of the entire semi-trailer, especially when driving at high speeds or making sharp turns. The strong shaking and impact may make control more difficult, thereby causing safety hazards. Utility Model Content

[0004] The purpose of the utility model is to provide a high-strength traction structure for a semi-trailer, so as to solve the problem in the above background technology that the trailer exerts a large impact force on the semi-trailer during driving.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a high-strength traction structure for a semi-trailer, comprising a steel sleeve, a steel column and a stud, wherein a socket is provided on the top of the steel sleeve, the steel column is inserted into the interior of the steel sleeve from the socket, a movable plate is installed at the bottom of the steel column, a second spring is installed at the bottom end of the steel sleeve below the movable plate, fixing frames are welded on both sides of the steel sleeve, a first spring is installed at the top end of the two fixing frames, connecting plates are welded on both sides of the steel column, a screw groove is provided on the top of the steel column, and the stud is engaged with the screw groove.

[0006] Preferably, a fixing plate 1 is welded to the bottom of the steel sleeve, and the fixing plate 1 is provided with fixing holes 1 in a rectangular array.

[0007] Preferably, sliders are installed on both sides of the movable plate, and sliding grooves are opened on both sides of the interior of the steel sleeve, and the two sliders and the two sliding grooves are slidably connected.

[0008] Preferably, the outer diameter of the movable plate is larger than the inner diameter of the insertion hole.

[0009] Preferably, a second fixing plate is welded to the top of the stud, and the second fixing plate is provided with second fixing holes in a rectangular array.

[0010] Preferably, the tops of the two connecting plates are fixedly connected to the bottoms of the two springs.

[0011] Preferably, a distance is left between the two connecting plates and the inner sides of the two fixing frames.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] The high-strength traction structure for a semi-trailer is characterized in that a steel column and a steel sleeve are fixed between the semi-trailer and the trailer by setting a first spring and a second spring. When shaking occurs during driving, the steel column drives a movable plate to move and compress the second spring inside the steel sleeve. When the second spring is compressed, the connecting plates on both sides of the steel column pull the two first springs. The first spring and the second spring pull each other to provide a buffer, thereby reducing the shaking and impact force between the semi-trailer and the trailer and preventing malfunctions. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model from the first angle;

[0015] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model from a second angle;

[0016] Figure 3 This is a schematic diagram of the three-dimensional structure of the utility model from a third angle;

[0017] Figure 4 This is a schematic diagram of the cross-sectional structure of the utility model.

[0018] In the figure: 1. Fixed plate 1; 2. Fixed hole 1; 3. Steel sleeve; 4. Steel column; 5. Fixed frame; 6. Fixed plate 2; 7. Fixed hole 2; 8. Spring 1; 9. Connecting plate; 10. Stud; 11. Slide; 12. Slider; 13. Screw groove; 14. Movable plate; 15. Spring 2; 16. Socket. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] See also Figure 1-4The utility model provides a technical solution: a high-strength traction structure for a semi-trailer, including a steel sleeve 3, a steel column 4 and a stud 10. A socket 16 is provided on the top of the steel sleeve 3, and the steel column 4 is inserted into the steel sleeve 3 from the socket 16. A movable plate 14 is installed at the bottom of the steel column 4, and sliders 12 are installed on both sides of the movable plate 14. Slide grooves 11 are provided on both sides of the steel sleeve 3. The two sliders 12 and the two slide grooves 11 are slidably connected. The two sliders 12 limit the movable plate 14. When the movable plate 14 moves, the two sliders 12 slide in the two slide grooves 11 to reduce the friction between the movable plate 14 and the steel sleeve 3. The outer diameter of the movable plate 14 is larger than the inner diameter of the socket 16. The movable plate 14 prevents the steel column 4 from sliding off from the inside of the steel sleeve 3. A spring 2 15 is installed at the bottom end of the steel sleeve 3 below the movable plate 14. Fixed Fixed frame 5, the top of the two fixing frames 5 are installed with a spring 8, and connecting plates 9 are welded on both sides of the steel column 4. The top of the two connecting plates 9 is fixedly connected to the bottom of the two springs 8. There is a distance between the two connecting plates 9 and the inner sides of the two fixing frames 5. The two connecting plates 9 are elastically connected to the two fixing frames 5 through two springs 8. A screw groove 13 is provided on the top of the steel column 4, and the stud 10 is engaged with the screw groove 13. A fixing plate 1 is welded to the bottom of the steel sleeve 3. The fixing plate 1 is provided with a fixing hole 2 in a rectangular array. Through the fixing hole 2 of the fixing plate 1, bolts and other tools are used to fix the fixing plate 1 to the semi-trailer. A fixing plate 26 is welded on the top of the stud 10. The fixing plate 26 is provided with a fixing hole 27 in a rectangular array. Through the fixing hole 27 of the fixing plate 26, bolts and other tools are used to fix the fixing plate 26 to the trailer.

[0021] Working principle: Through the fixing hole 12 of the fixing plate 1, use bolts and other tools to fix the fixing plate 1 to the semi-trailer, rotate the stud 10, and the stud 10 rotates and moves in the screw groove 13 of the steel column 4, and the stud 10 drives the fixing plate 2 6 to move. After adjusting the fixing plate 2 6 to the appropriate position, use bolts and other tools to fix the fixing plate 2 6 to the trailer through the fixing hole 2 7 of the fixing plate 2 6 to avoid the distance between the semi-trailer and the trailer being too close. The semi-trailer drives the trailer to move its position through the steel column 4 and the steel sleeve 3. During the movement, when the ground is uneven and causes the semi-trailer and the trailer to shake, the steel column 4 drives the movable plate 14 to move and compress the spring 2 15 inside the steel sleeve 3. During the compression process of the spring 2 15, the connecting plates 9 on both sides of the steel column 4 pull the spring 1 8 inside the two fixing frames 5. The spring 1 8 and the spring 2 15 pull each other to provide a buffer, thereby reducing the shaking and impact force between the semi-trailer and the trailer.

[0022] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-strength traction structure for a semi-trailer, comprising a steel sleeve (3), a steel column (4) and a stud (10), characterized in that: The steel sleeve (3) is provided with a socket (16) at the top, and the steel column (4) is inserted into the steel sleeve (3) from the socket (16). A movable plate (14) is installed at the bottom of the steel column (4), and a spring 2 (15) is installed at the bottom end of the steel sleeve (3) below the movable plate (14). Fixing frames (5) are welded on both sides of the steel sleeve (3), and spring 1 (8) is installed at the top end of the two fixing frames (5). Connecting plates (9) are welded on both sides of the steel column (4). A screw groove (13) is provided at the top of the steel column (4), and the stud (10) is engaged with the screw groove (13).

2. The high-strength traction structure for a semi-trailer according to claim 1, characterized in that: A fixing plate (1) is welded to the bottom of the steel sleeve (3), and the fixing plate (1) is provided with fixing holes (2) in a rectangular array.

3. The high-strength traction structure for a semi-trailer according to claim 1, characterized in that: Slide blocks (12) are installed on both sides of the movable plate (14), and slide grooves (11) are opened on both sides of the interior of the steel sleeve (3), and the two slide blocks (12) and the two slide grooves (11) are slidably connected.

4. The high-strength traction structure for a semi-trailer according to claim 1, characterized in that: The outer diameter of the movable plate (14) is larger than the inner diameter of the insertion hole (16).

5. The high-strength traction structure for a semi-trailer according to claim 1, characterized in that: A second fixing plate (6) is welded to the top of the stud (10), and the second fixing plate (6) is provided with two fixing holes (7) in a rectangular array.

6. The high-strength traction structure for a semi-trailer according to claim 1, characterized in that: The tops of the two connecting plates (9) are fixedly connected to the bottoms of the two springs (8).

7. The high-strength traction structure for a semi-trailer according to claim 1, characterized in that: There is a distance between the two connecting plates (9) and the inner sides of the two fixing frames (5).

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