Full trailer traction connecting device

Abstract

The utility model discloses a traction connecting device of a full trailer, and relates to the technical field of automobile traction devices, in particular to the traction connecting device of the full trailer, which comprises a traction frame, and a buffer mechanism is arranged on the traction frame and used for buffering acting force in two directions generated in the traction process. The buffering mechanism is provided with a connecting mechanism and used for connecting and fixing a rear vehicle, the buffering mechanism comprises a first-stage assembly, the first-stage assembly comprises an outer cylinder arranged in the front end of the traction frame, an inner cylinder is slidably installed in the outer cylinder in a penetrating mode, a first baffle ring is fixed to the middle of the outer wall of the inner cylinder, and a first front spring and a first rear spring are installed on the inner cylinder in a sleeving mode; the problem that a buffering spring in the scheme provides an obvious buffering effect in a certain direction but is relatively weak in performance in other directions when a front vehicle experiences acting force in two opposite directions of braking and starting in the traction process is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile traction devices, in particular to a traction connection device for a full trailer. Background Art

[0002] A trailer is a cargo-carrying device used in conjunction with a traction vehicle. Its structural feature is that the load is entirely borne by itself; the driving force provided by the traction vehicle is transmitted to the trailer through the traction connection device;

[0003] After checking the publication (announcement) number: CN219769562U, a traction device is disclosed. This technology discloses "a traction device, including a traction sleeve, a first threaded chamber is opened on one side of the traction sleeve, a first connecting rod is arranged on one side of the traction sleeve and is located in the first threaded chamber, and a first traction base is arranged on one side of the first connecting rod", etc., which has "through the buffer component, when the front vehicle brakes suddenly, the second connecting rod is threadedly connected with the buffer sleeve, and through the connection between the buffer sleeve and the buffer spring, under the action of the buffer spring, the impact force caused by the sudden braking of the front vehicle is alleviated, thereby preventing the two vehicles from being successively damaged by the traction device" and other technical effects;

[0004] The above solution uses the force of the buffer spring to effectively alleviate the impact force generated by the sudden braking of the front vehicle. However, considering that the front vehicle will experience two opposite forces, braking and starting, during the towing process, the buffer spring in this solution provides a significant buffering effect in one direction, but is relatively weak in other directions. This uneven distribution of buffering force makes it impossible to evenly dissipate the impact in the system, which affects the overall stability to a certain extent. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a full trailer traction connection device, which has the characteristics of being able to buffer forces in two directions through a buffer mechanism and also having a secondary buffering function, thereby improving the buffering effect.

[0006] To achieve the above purpose, the utility model is implemented by the following technical solutions: a full trailer traction connection device, including a traction frame, the traction frame is provided with a buffer mechanism and is used to buffer the forces in two directions generated during the traction process, the buffer mechanism is provided with a connecting mechanism and is used to connect and fix the rear vehicle, and the buffer mechanism includes:

[0007] The first-stage assembly comprises an outer cylinder arranged inside the front end of the traction frame, an inner cylinder is slidably installed inside the outer cylinder, a first retaining ring is fixed at the middle of the outer wall of the inner cylinder, a first front spring and a first rear spring are sleeved and installed on the inner cylinder, and the first front spring and the first rear spring are respectively located at the front and rear ends of the first retaining ring;

[0008] The secondary component includes a telescopic rod slidably installed inside the inner cylinder, a second retaining ring is fixed to the middle of the outer wall of the telescopic rod, a second front spring and a second rear spring are sleeved and installed on the telescopic rod, and the second front spring and the second rear spring are respectively located at the front and rear ends of the second retaining ring.

[0009] Preferably, the buffer mechanism further comprises a front flange ring and a rear flange ring respectively fixed at the front and rear ends of the outer tube, a mounting frame is fixed at the front end of the traction frame, and a fixing frame is fixed at the inner front end of the traction frame.

[0010] Preferably, the connecting mechanism comprises a hook arranged on the buffer mechanism, a hook lock is hinged on the hook, a bolt is installed on the hook, and a nut is threadedly installed on the bolt.

[0011] Preferably, the connecting mechanism further comprises a flange seat fixed to the end of the hook, and the secondary component further comprises a flange head fixed to the front end of the telescopic rod.

[0012] Preferably, both ends of the traction frame are fixed with hanging rings, and the hanging rings are connected with ropes.

[0013] Preferably, mounting seats are pivotally connected to both sides of the rear end of the traction frame.

[0014] Beneficial Effects

[0015] The utility model provides a full trailer traction connection device. Compared with the prior art, it has the following advantages:

[0016] Beneficial effects:

[0017] (1) When the vehicle in front brakes or starts, the connecting mechanism drives the telescopic rod to slide along the inner part of the inner tube, so that the telescopic rod drives the second retaining ring to squeeze the second front spring or the second rear spring for the first buffering. At the same time, when the inner tube is subjected to force, it will also slide along the inner part of the outer tube, so that the inner tube squeezes the first front spring or the first rear spring through the first retaining ring for the second buffering. The buffer mechanism can buffer the forces in two directions and also has the function of secondary buffering, thereby improving the buffering effect.

[0018] (2) By hooking the hook onto the towing ring of the front vehicle, rotating the hook lock to align it with the hole on the hook, and passing the bolt through and fixing it with the nut, the hook is prevented from being separated from the towing ring of the front vehicle; by tying the front end of the rope to the frame of the front vehicle, when the towing frame is separated from the front vehicle, the force is transmitted between the front vehicle and the rear vehicle through the rope, preventing the rear vehicle from being completely out of control. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0020] Figure 2It is a structural schematic diagram of the buffer mechanism in the utility model;

[0021] Figure 3 It is a schematic diagram of the split structure of the buffer mechanism and the connecting mechanism in the utility model;

[0022] Figure 4 It is a schematic diagram of the structure inside the buffer mechanism of the utility model.

[0023] In the figure: 1. traction frame; 2. buffer mechanism; 21. primary assembly; 211. outer cylinder; 212. inner cylinder; 213. first retaining ring; 214. first front spring; 215. first rear spring; 22. secondary assembly; 221. telescopic rod; 222. second retaining ring; 223. second front spring; 224. second rear spring; 225. flange head; 23. front flange ring; 24. rear flange ring; 3. connecting mechanism; 31. hook; 32. hook lock; 33. bolt; 34. nut; 35. flange seat; 4. mounting frame; 5. fixing frame; 6. hanging ring; 7. rope; 8. mounting seat. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-4 The utility model provides a technical solution for a trailer traction connection device: a trailer traction connection device, including a traction frame 1, a buffer mechanism 2 is provided on the traction frame 1 and is used to buffer the forces in two directions generated during the traction process, a connection mechanism 3 is provided on the buffer mechanism 2 and is used to connect and fix the rear vehicle, and the buffer mechanism 2 includes:

[0026] The first-stage assembly 21 comprises an outer cylinder 211 disposed inside the front end of the traction frame 1, an inner cylinder 212 is slidably installed inside the outer cylinder 211, a first retaining ring 213 is fixed to the middle of the outer wall of the inner cylinder 212, a first front spring 214 and a first rear spring 215 are sleeved and installed on the inner cylinder 212, and the first front spring 214 and the first rear spring 215 are respectively located at the front and rear ends of the first retaining ring 213;

[0027] The secondary component 22 includes a telescopic rod 221 that is slidably installed and passes through the inner cylinder 212. A second retaining ring 222 is fixed to the middle of the outer wall of the telescopic rod 221. A second front spring 223 and a second rear spring 224 are sleeved and installed on the telescopic rod 221. The second front spring 223 and the second rear spring 224 are respectively located at the front and rear ends of the second retaining ring 222. The rear vehicle is connected to the front vehicle through the connecting mechanism 3 at the front end of the buffer mechanism 2 on the traction frame 1 for towing.

[0028] In this embodiment, when the front vehicle brakes or starts, the connecting mechanism 3 will drive the telescopic rod 221 to slide along the inside of the inner tube 212, so that the telescopic rod 221 drives the second retaining ring 222 to squeeze the second front spring 223 or the second rear spring 224 for the first buffering. At the same time, the inner tube 212 will also slide along the inside of the outer tube 211 when subjected to force, so that the inner tube 212 squeezes the first front spring 214 or the first rear spring 215 through the first retaining ring 213 for the second buffering, so that the buffer mechanism 2 can buffer the forces in two directions, and also has the function of secondary buffering, thereby improving the buffering effect.

[0029] Specifically, the buffer mechanism 2 further includes a front flange ring 23 and a rear flange ring 24 respectively fixed at the front and rear ends of the outer cylinder 211 , a mounting frame 4 is fixed at the front end of the traction frame 1 , and a fixing frame 5 is fixed at the inner front end of the traction frame 1 .

[0030] In this embodiment, the mounting frame 4 is fixed to the front end of the traction frame 1 by bolts, and the buffer mechanism 2 is fixed to the mounting frame 4 by the front flange ring 23 and the bolts; the fixing frame 5 is fixed to the inside of the front end of the traction frame 1 by bolts and is fixed to the rear flange ring 24 on the buffer mechanism 2, thereby reinforcing the buffer mechanism 2.

[0031] Specifically, the connection mechanism 3 includes a hook 31 disposed on the buffer mechanism 2 , a hook lock 32 is hinged on the hook 31 , a bolt 33 is installed on the hook 31 , and a nut 34 is threadedly installed on the bolt 33 .

[0032] In this embodiment, the hook 31 is hooked on the towing ring of the front vehicle, the hook lock 32 is rotated to align with the hole on the hook 31, and the bolt 33 is passed through and fixed with the nut 34 to prevent the hook 31 from being separated from the towing ring of the front vehicle.

[0033] Specifically, the connection mechanism 3 further includes a flange seat 35 fixed to the end of the hook 31 , and the secondary component 22 further includes a flange head 225 fixed to the front end of the telescopic rod 221 .

[0034] In this embodiment, the connection mechanism 3 is connected to the flange head 225 on the buffer mechanism 2 via the flange seat 35, so that the connection mechanism 3 and the buffer mechanism 2 can be disassembled and assembled, and are convenient for replacement.

[0035] Specifically, both ends of the traction frame 1 are fixed with hanging rings 6 , and the hanging rings 6 are connected with ropes 7 .

[0036] In this embodiment, the front end of the rope 7 can be tied to the frame of the front vehicle, so that when the traction frame 1 is separated from the front vehicle, the rope 7 can be used to transmit force between the front vehicle and the rear vehicle to prevent the rear vehicle from being completely out of control.

[0037] Specifically, mounting seats 8 are pivotally connected to both sides of the rear end of the traction frame 1 .

[0038] In this embodiment, the traction frame 1 is fixed to the frame of the front vehicle via the mounting seat 8 .

[0039] The working principle and use process of the utility model are as follows: first, the traction frame 1 is fixed to the frame of the front vehicle through the mounting seat 8, and then the hook 31 is hooked on the traction ring of the front vehicle, and then the hook lock 32 is rotated to align with the hole on the hook 31, and the bolt 33 is passed through and fixed through the nut 34 to prevent the hook 31 from being separated from the traction ring of the front vehicle; then, the front end of the rope 7 can be tied to the frame of the front vehicle, so that when the traction frame 1 is separated from the front vehicle, the front vehicle and the rear vehicle can transmit force through the rope 7 to prevent the rear vehicle from being completely out of control; finally, when the front vehicle brakes or When starting, the connecting mechanism 3 will drive the telescopic rod 221 to slide along the inside of the inner tube 212, so that the telescopic rod 221 drives the second retaining ring 222 to squeeze the second front spring 223 or the second rear spring 224 for the first buffering. At the same time, the inner tube 212 will also slide along the inside of the outer tube 211 when subjected to force, so that the inner tube 212 squeezes the first front spring 214 or the first rear spring 215 through the first retaining ring 213 for the second buffering, so that the buffer mechanism 2 can buffer the forces in two directions, and also has the function of secondary buffering, thereby improving the buffering effect.

[0040] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A trailer traction connection device, comprising a traction frame (1), characterized in that: The traction frame (1) is provided with a buffer mechanism (2) for buffering the forces in two directions generated during the traction process; the buffer mechanism (2) is provided with a connecting mechanism (3) for connecting and fixing the rear vehicle; the buffer mechanism (2) comprises: The first-stage assembly (21) comprises an outer cylinder (211) arranged inside the front end of the traction frame (1), an inner cylinder (212) is slidably installed inside the outer cylinder (211), a first retaining ring (213) is fixed to the middle of the outer wall of the inner cylinder (212), a first front spring (214) and a first rear spring (215) are sleeved and installed on the inner cylinder (212), and the first front spring (214) and the first rear spring (215) are respectively located at the front and rear ends of the first retaining ring (213); The secondary assembly (22) comprises a telescopic rod (221) which is slidably installed and passes through the inner cylinder (212); a second retaining ring (222) is fixed to the middle of the outer wall of the telescopic rod (221); a second front spring (223) and a second rear spring (224) are sleeved and installed on the telescopic rod (221); and the second front spring (223) and the second rear spring (224) are respectively located at the front and rear ends of the second retaining ring (222).

2. A trailer traction connection device according to claim 1, characterized in that: The buffer mechanism (2) further comprises a front flange ring (23) and a rear flange ring (24) respectively fixed at the front and rear ends of the outer cylinder (211); a mounting frame (4) is fixed at the front end of the traction frame (1); and a fixing frame (5) is fixed at the inner front end of the traction frame (1).

3. The trailer traction connection device according to claim 1, characterized in that: The connecting mechanism (3) comprises a hook (31) arranged on the buffer mechanism (2), a hook lock (32) is hinged on the hook (31), a bolt (33) is installed on the hook (31), and a nut (34) is threadedly installed on the bolt (33).

4. A trailer traction connection device according to claim 3, characterized in that: The connection mechanism (3) further comprises a flange seat (35) to which the end of the hook (31) is fixed, and the secondary component (22) further comprises a flange head (225) to which the front end of the telescopic rod (221) is fixed.

5. The trailer traction connection device according to claim 1, characterized in that: Both ends of the traction frame (1) are fixed with hanging rings (6), and ropes (7) are connected to the hanging rings (6).

6. The trailer traction connection device according to claim 1, characterized in that: Both sides of the rear end of the traction frame (1) are pivotally connected with mounting seats (8).

Images