Trailer gooseneck traction structure

Abstract

The utility model relates to the technical field of trailer traction, and discloses a trailer gooseneck traction structure which comprises a fixing plate, threaded grooves are formed in the two sides of the fixing plate, screws are in threaded connection with the interiors of the threaded grooves, first connecting grooves are formed in the two sides of the fixing plate, connecting assemblies are movably installed in the first connecting grooves, and the connecting assemblies are movably installed in the first connecting grooves. Fixing structures are movably mounted on the side faces of the connecting assemblies, when the device is used as a connecting mechanism of a trailer, the fixing plate is fixedly mounted on a tractor through screws firstly, then the trailer is connected through the connecting assemblies on the side walls of the fixing plate and the fixing structures, and when the tractor suddenly turns in the driving process, the fixing structures are fixed to the fixing plate; when the trailer deflects, the connecting assembly and the fixing structure correspondingly rotate in the inertia direction at the same time, when the trailer swerves, the gooseneck traction structure of the trailer can deflect together while keeping fixed connection in the inertia direction of the trailer in the swerving process, and the connecting structure is prevented from being damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of trailer traction, in particular to a gooseneck traction structure for a trailer. Background Art

[0002] A trailer is a vehicle towed by a car but without its own power drive device. It is a combination of a car (truck or tractor, forklift) and one or more trailers. The truck and tractor are the driving sections of the car train, called the main car; the driven section towed by the main car is called the trailer. It is an important type of vehicle for road transportation, with the advantages of speed, maneuverability, flexibility, and safety, and can easily realize section transportation. The gooseneck is an extremely important part of the trailer and is used to connect with the main car.

[0003] For example, a trailer gooseneck traction structure with announcement number CN218858557U relates to the field of trailer technology and includes a traction mechanism, the traction mechanism including a traction motherboard, a traction sub-plate provided at one end of the traction motherboard, a fixing ring provided at the end of the traction sub-plate away from the traction motherboard, a rotating rod provided at the end of the traction motherboard away from the traction sub-plate, a latch provided on both sides of the traction motherboard away from the traction sub-plate, a fixing mechanism provided within the latch, and the fixing mechanism including a first telescopic rod. This utility model, by installing the first telescopic rod in the traction device, enables the tractor to effectively buffer the trailer when starting or stopping, thereby preventing damage to the traction device due to excessive inertia, thereby further improving the practicality of the device. The use of a fixing plate to fix the first telescopic rod prevents the problem of direct damage to the first telescopic rod due to the lack of extension and contraction restrictions.

[0004] The above patent improves the stability of the trailer's gooseneck traction structure. However, when the tractor turns while driving, the trailer will deviate under the action of gravity and cannot adjust the direction synchronously with the main vehicle. When an instantaneous deflection occurs, the traction structure may bend or even break, which is dangerous during driving.

[0005] Therefore, we propose a trailer gooseneck traction structure to solve the problems raised above. Utility Model Content

[0006] The purpose of the present utility model is to provide a gooseneck traction structure for a trailer, so as to solve the problem raised in the above-mentioned background technology that when the tractor turns during driving, the trailer will be offset under the action of gravity and cannot adjust the direction synchronously with the main vehicle. When an instantaneous deflection occurs, the traction structure may bend or even break, which may cause certain dangers during driving.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a trailer gooseneck traction structure, comprising a fixed plate, threaded grooves are provided on both sides of the fixed plate, screws are threadedly connected in the threaded grooves, connecting grooves 1 are provided on both sides of the fixed plate, connecting components are movably installed in the connecting grooves 1, and fixed structures are movably installed on the sides of the connecting components.

[0008] Preferably, the connecting assembly includes a connecting ball 1 rotatably connected in the connecting groove 1, and a connecting rod 1 is fixedly mounted on the side wall of the connecting ball 1.

[0009] Preferably, the outer side of the connecting rod 1 is slidably connected to the connecting rod 2, and the side wall of the connecting rod 2 is fixedly installed with the connecting ball 2.

[0010] Preferably, a spring is fixedly installed between the inner wall of the second connecting rod and the first connecting rod.

[0011] Preferably, the fixing structure includes a fixing block rotatably mounted on the second connecting ball, a second connecting groove is provided on a side surface of the fixing block, and the second connecting ball is rotatably mounted in the second connecting groove.

[0012] Preferably, the side wall of the fixed block is provided with a connecting groove three, in which a connecting ball three is rotatably installed, a fixing rod is fixedly installed on the side wall of the connecting ball three, and a fixing ring is fixedly installed on the side wall of the fixing rod.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. When using the device as a connection mechanism for a trailer, first fix the fixing plate to the tractor with screws, and then connect the trailer through the connecting assembly and the fixed structure on the side wall of the fixing plate. When the tractor makes a sharp turn during driving, the connecting assembly and the fixed structure rotate in the direction of inertia when the trailer deflects. When turning, the gooseneck traction structure of the trailer can deflect together with the inertia direction of the trailer while maintaining a fixed connection when turning, thereby preventing damage to the connection structure.

[0015] 2. With the cooperation among connecting ball 1, connecting rod 2, connecting ball 2, connecting rod 1, spring, fixing block, connecting groove 2, connecting groove 3, connecting ball 3, fixing rod and fixing ring, when using the device as a connecting mechanism of a semi-trailer, first fix the fixing plate on the tractor, move the semi-trailer to the position where the connecting end is directly opposite the rear end of the tractor, then according to the height of the connection position of the semi-trailer to be connected, pull the fixing ring to connect it to the connection of the semi-trailer, and when pulling the fixing ring, drive the fixing block to move together, then drive the connecting rod 2 to slide along the connecting rod 1 through the connecting ball 2, and the spring is stretched under the action of tension to fix the fixing ring. That is, when the tractor turns during driving, the tractor turns so that the semi-trailer behind it moves a distance in the original driving direction under the action of inertia, and then deflects as the tractor turns. When the semi-trailer deflects, the connecting rod 1 and the connecting rod 2 are rotated by the connecting ball 1, the connecting ball 2 and the connecting ball 3, and the deflection force is offset by the connection relationship between the connecting ball 1, the connecting ball 2 and the connecting ball 3 and the fixed plate and the fixed block. The device has a simple structure, which makes it suitable for connecting semi-trailers of different heights, and can offset the inertia generated during driving, so as to have a certain protective effect on the connecting components. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the overall cross-sectional three-dimensional structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the three-dimensional structure of the connecting assembly system of the utility model;

[0019] Figure 4 For the utility model Figure 2 A in the middle is an enlarged schematic diagram of the three-dimensional structure.

[0020] In the figure: 1. Fixing plate; 11. Threaded groove; 12. Connecting groove 1; 13. Screw; 2. Connecting assembly; 21. Connecting ball 1; 22. Connecting rod 2; 23. Connecting ball 2; 24. Connecting rod 1; 25. Spring; 3. Fixing structure; 31. Fixing block; 32. Connecting groove 2; 33. Connecting groove 3; 34. Connecting ball 3; 35. Fixing rod; 36. Fixing ring. DETAILED DESCRIPTION

[0021] 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.

[0022] Example 1: Please refer to Figure 1 - Figure 3 A trailer gooseneck traction structure includes a fixed plate 1, threaded grooves 11 are provided on both sides of the fixed plate 1, screws 13 are threadedly connected in the threaded grooves 11, connecting grooves 12 are provided on both sides of the fixed plate 1, connecting components 2 are movably installed in the connecting grooves 12, and fixed structures 3 are movably installed on the sides of the connecting components 2.

[0023] In this embodiment: when the device is used as a connecting mechanism for a trailer, the fixing plate 1 is first fixed to the tractor by means of screws 13, and then the trailer is connected by means of the connecting assembly 2 and the fixing structure 3 on the side wall of the fixing plate 1. When the tractor makes a sharp turn during driving, the connecting assembly 2 and the fixing structure 3 rotate in the direction of inertia at the same time as the trailer deflects. When turning, the gooseneck traction structure of the trailer can deflect together with the inertia direction of the trailer while maintaining a fixed connection when turning, thereby preventing damage to the connecting structure.

[0024] Example 2: This example is an improvement made on the basis of Example 1. For details, please refer to Figure 2 - Figure 4 The connecting assembly 2 includes a connecting ball 21 rotatably connected in a connecting groove 12, and a connecting rod 24 is fixedly installed on the side wall of the connecting ball 21. The connecting ball 21 rotates in the connecting groove 12, and the connecting rod 24 rotates to drive the connecting ball 21 to rotate.

[0025] The outer side of the connecting rod 1 24 is slidably connected to the connecting rod 2 22 , and the side wall of the connecting rod 2 22 is fixedly installed with the connecting ball 23 , and the connecting ball 1 21 and the connecting ball 2 23 are connected together through the connecting rod 1 24 and the connecting rod 2 22 .

[0026] A spring 25 is fixedly installed between the inner wall of the second connecting rod 22 and the first connecting rod 24, and the spring 25 can provide a certain buffering effect.

[0027] The fixing structure 3 includes a fixing block 31 rotatably mounted on the connecting ball 23 , a connecting groove 22 is provided on the side of the fixing block 31 , the connecting ball 23 is rotatably mounted in the connecting groove 22 , and the connecting ball 23 is connected to the fixing block 31 through the connecting groove 22 .

[0028] The side wall of the fixed block 31 is provided with a connecting groove three 33, in which a connecting ball three 34 is rotatably installed, a fixing rod 35 is fixedly installed on the side wall of the connecting ball three 34, and a fixing ring 36 is fixedly installed on the side wall of the fixing rod 35. The fixing ring 36 is connected to the trailer. The connection between the two fixing rings 36 and the trailer can reduce the force on the connecting assembly 2 when turning.

[0029] In this embodiment, when the device is used as a connecting mechanism for a semi-trailer, the fixing plate 1 is first fixedly installed on the tractor, and the semi-trailer is moved to a position where the connecting end is directly opposite to the rear end of the tractor. At this time, according to the height of the connecting position of the connected semi-trailer, the fixing ring 36 is pulled to sleeve it on the connection of the semi-trailer. When the fixing ring 36 is pulled, the fixing block 31 is moved together. At this time, the connecting rod 22 is driven by the connecting ball 23 to slide along the connecting rod 1 24. The spring 25 is stretched under the action of the tension, and the fixing ring 36 is fixed. When the tractor turns during driving, the tractor turns so that the rear Under the action of inertia, the semi-trailer moves a distance in the original direction of travel, and then deflects as the tractor turns. When the semi-trailer deflects, the connecting rod 1 24 and the connecting rod 2 22 are rotated through the connecting ball 1 21, the connecting ball 2 23 and the connecting ball 3 34. The deflection force is offset by the connection relationship between the connecting ball 1 21, the connecting ball 23 and the connecting ball 3 34 and the fixed plate 1 and the fixed block 31. The device has a simple structure and can be applied to connect semi-trailers of different heights. It can also offset the inertia generated during driving, and has a certain protective effect on the connecting component 2.

[0030] The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0031] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A trailer gooseneck traction structure, comprising a fixing plate (1), characterized in that: Both sides of the fixing plate (1) are provided with threaded grooves (11), and screws (13) are threadedly connected in the threaded grooves (11). Both sides of the fixing plate (1) are provided with connecting grooves (12), and connecting components (2) are movably installed in the connecting grooves (12). The sides of the connecting components (2) are movably installed with fixing structures (3).

2. The trailer gooseneck traction structure according to claim 1, characterized in that: The connecting assembly (2) comprises a connecting ball (21) rotatably connected in the connecting groove (12), and a connecting rod (24) is fixedly mounted on the side wall of the connecting ball (21).

3. The trailer gooseneck traction structure according to claim 2, characterized in that: The outer side of the connecting rod 1 (24) is slidably connected to the connecting rod 2 (22), and the side wall of the connecting rod 2 (22) is fixedly mounted with the connecting ball 2 (23).

4. The trailer gooseneck traction structure according to claim 3, characterized in that: A spring (25) is fixedly installed between the inner wall of the second connecting rod (22) and the first connecting rod (24).

5. The trailer gooseneck traction structure according to claim 4, characterized in that: The fixing structure (3) includes a fixing block (31) rotatably mounted on the second connecting ball (23), a second connecting groove (32) is provided on the side of the fixing block (31), and the second connecting ball (23) is rotatably mounted in the second connecting groove (32).

6. The trailer gooseneck traction structure according to claim 5, characterized in that: The side wall of the fixed block (31) is provided with a third connecting groove (33), in which a third connecting ball (34) is rotatably mounted, a fixing rod (35) is fixedly mounted on the side wall of the connecting ball (34), and a fixing ring (36) is fixedly mounted on the side wall of the fixing rod (35).

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