Self-adaptive traction connection structure with buffering function for trailer or towing sleigh

Abstract

The utility model discloses a self-adaptive traction connecting structure with a buffering function for a trailer or a towing sleigh, which comprises a connecting rod and a connecting element, the connecting element comprises a sleeve, a traction rod and a buffering element, the side wall of the sleeve is arranged at one end of the connecting rod, the traction rod is inserted in the sleeve in a sliding manner, and the buffering element is arranged on the side wall of the connecting rod. The buffering element comprises a front buffering piece and a rear buffering piece, the front buffering piece is located between the sleeve and the front end of the traction rod, and the rear buffering piece is located between the sleeve and the rear end of the traction rod. The effect of improving the stability of the trailer in the driving process is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of trailers, and in particular to an adaptive traction connection structure for trailers or towing sleds with a buffer function. Background Art

[0002] Trailers, especially snow trailers, are widely used in alpine areas as snow transportation tools. Snow trailers are usually used in conjunction with snowmobiles or other snow transportation tools to load cargo or transport passengers. When the trailer is connected to the snow transportation tool, the trailer's tow hook is rigidly connected to the rear end of the snow transportation tool through an insertion rod. For example, the patent name is a snowmobile trailer (application number: 2022231021292). When the snow transportation tool suddenly accelerates or brakes, the cargo or passengers on the trailer will sway forward or backward under the action of inertia, making the cargo or passengers on the trailer less stable. Utility Model Content

[0003] The utility model aims to provide an adaptive traction connection structure for a trailer or a towed sled with a buffering function in view of the defects and shortcomings of the prior art.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] It includes a connecting rod and a connecting element, wherein the connecting element includes a sleeve, a traction rod and a buffer element, the side wall of the sleeve is arranged at one end of the connecting rod, the traction rod is inserted and slid in the sleeve, and the buffer element includes a front buffer part and a rear buffer part, the front buffer part is located between the sleeve and the front end of the traction rod, and the rear buffer part is located between the sleeve and the rear end of the traction rod.

[0006] Preferably, the front buffer is a first compression spring, the rear buffer is a second compression spring, and the first compression spring and the second compression spring are respectively sleeved on the circumferential side of the traction rod.

[0007] Preferably, the connecting rod includes a horizontal rod and a connecting rod, a mounting seat is provided at one end of the connecting rod, the connecting rod is inserted and slid in the mounting seat, a plurality of mounting holes are evenly opened on the connecting rod along the length direction, a fixing screw is inserted and connected in the mounting seat, and the fixing screw passes through one of the mounting holes.

[0008] Preferably, the traction rod consists of a sliding rod and a connecting ring, the connecting ring is arranged at one end of the sliding rod, and the sliding rod is inserted and slidably moved in the sleeve.

[0009] Preferably, the sliding rod is cylindrical and the sleeve is cylindrical.

[0010] Preferably, there is a gap between the sliding rod and the sleeve.

[0011] Preferably, limiting nuts are respectively provided at both ends of the sliding rod, the sleeve is located between the two limiting nuts, one end of the first compression spring abuts against one end of the limiting nut, and the other end abuts against the front end of the sleeve, and one end of the second compression spring abuts against one end of the other limiting nut, and the other end abuts against the rear end of the sleeve.

[0012] In summary, the present application includes at least one of the following beneficial technical effects:

[0013] 1. After the trailer is connected to the snow vehicle, when the snow vehicle accelerates forward or brakes suddenly, the sleeve compresses the first compression spring or the second compression spring, and the trailer will slowly accelerate or decelerate, so that the trailer will not change with the speed of the snow vehicle, so that the cargo or injured on the trailer will not shake greatly, thereby improving the stability of the trailer during driving;

[0014] 2. When encountering complex road conditions, due to the gap between the slide bar and the sleeve, the slide bar can swing in multiple directions to adapt to the up and down shaking road conditions, and the slide bar rotates and connects in the sleeve to adapt to the road conditions with tilt changes, thereby improving the stability of pulling the trailer;

[0015] 3. When encountering different types of snow vehicles, the connecting rod slides in the mounting seat until the connecting ring is connected to the rear end of the snow vehicle, and the fixing screw is inserted into one of the mounting holes through the side wall of the mounting seat, thereby fixing the fixing screw in the mounting seat, thereby improving the adaptability of connecting with different types of snow vehicles. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the connection structure of the utility model;

[0017] Figure 2 It is an exploded schematic diagram of the connection structure of the utility model.

[0018] In the figure: 1. connecting rod; 2. connecting element; 3. sleeve; 4. traction rod; 5. buffer element; 6. front buffer; 7. rear buffer; 8. horizontal rod; 9. connecting rod; 10. mounting seat; 11. mounting hole; 12. fixing screw; 13. sliding rod; 14. connecting ring; 15. limiting nut; 16. first compression spring; 17. second compression spring. DETAILED DESCRIPTION

[0019] The utility model is further described below in conjunction with the accompanying drawings.

[0020] The embodiments of the present application disclose an adaptive traction connection structure for a trailer or a towed sled with a buffer function.

[0021] Reference Figure 1 , including a connecting rod 1 and a connecting element 2, the connecting element 2 includes a sleeve 3, a traction rod 4 and a buffer element 5, the sleeve 3 is arranged at one end of the connecting rod 1, the traction rod 4 is slidably inserted in the sleeve 3, the buffer element 5 includes a front buffer 6 and a rear buffer 7, the front buffer 6 is located between the front end of the traction rod 4 and the sleeve 3, and the rear buffer 7 is located between the rear end of the traction rod 4 and the sleeve 3.

[0022] Reference Figure 2 The connecting rod 1 includes a horizontal rod 8 and a connecting rod 9. The cross-sections of the horizontal rod 8 and the connecting rod 9 are square ring-shaped. A mounting seat 10 is welded and fixed at one end of the horizontal rod 8. The other end of the horizontal rod 8 is connected to the frame of the trailer. The mounting seat 10 is arranged upwardly and tilted. The connecting rod 9 is slidably inserted into the mounting seat 10. The side wall of the mounting seat 10 is provided with two through holes, which are arranged along the length direction of the mounting seat 10. The connecting rod 9 is evenly provided with a plurality of mounting holes 11 along the length direction, wherein two adjacent mounting holes 11 correspond to the two through holes, and fixing screws 12 are inserted into the through holes, and one end of the fixing screws 12 passes through the through holes and the mounting hole 11 in sequence. The connecting rod 9 slides in the mounting seat 10 until the front end of the traction rod 4 is connected to the rear end of the snow vehicle. The two fixing screws 12 are inserted through the through holes of the mounting seat 10 into the two adjacent mounting holes 11, thereby fixing the fixing screws 12 in the mounting seat 10, so that the connecting rod 9 is connected and fixed to the horizontal rod 8.

[0023] The sleeve 3 is arranged horizontally, and the outer side wall of the sleeve 3 is welded and fixed to the upper end of the connecting rod 9. The traction rod 4 includes a sliding rod 13 and a connecting ring 14. The front end of the sliding rod 13 is welded and fixed to the side wall of the connecting ring 14. The circumferential sides of both ends of the sliding rod 13 are respectively threadedly connected with limiting nuts 15. The two limiting nuts 15 are respectively located on both sides of the sleeve 3. The front buffer 6 is a first compression spring 16, and the rear buffer 7 is a second compression spring 17. The first compression spring 16 and the second compression spring 17 are sleeved on the circumferential side of the sliding rod 13. One end of the first compression spring 16 abuts against one end of the limiting nut 15, and the other end abuts against the front end of the sleeve 3. One end of the second compression spring 17 abuts against one end of another limiting nut 15, and the other end abuts against the rear end of the sleeve 3. When the snow vehicle accelerates forward or brakes suddenly, the sleeve 3 compresses the first compression spring 16 or the second compression spring 17, and the trailer slowly accelerates or decelerates, so that the trailer does not change with the speed of the snow vehicle, so that the cargo or injured on the trailer will not shake greatly.

[0024] The slide bar 13 is cylindrical, the sleeve 3 is cylindrical, and there is a gap between the slide bar 13 and the sleeve 3. The slide bar 13 can swing in multiple directions to adapt to the road conditions of up and down shaking, and the slide bar 13 is connected to the sleeve 3 by rotation to adapt to the road conditions with tilt changes.

[0025] The above description is only a preferred embodiment of the present utility model, so all equivalent changes or modifications made according to the structure, features and principles described in the scope of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. An adaptive traction connection structure for a trailer or a towed sled with a buffer function, characterized in that: The invention comprises a connecting rod (1) and a connecting element (2), wherein the connecting element (2) comprises a sleeve (3), a traction rod (4) and a buffer element (5), wherein a side wall of the sleeve (3) is arranged at one end of the connecting rod (1), the traction rod (4) is inserted and slidably moved in the sleeve (3), and the buffer element (5) comprises a front buffer component (6) and a rear buffer component (7), wherein the front buffer component (6) is located between the sleeve (3) and the front end of the traction rod (4), and the rear buffer component (7) is located between the sleeve (3) and the rear end of the traction rod (4).

2. The adaptive traction connection structure for a trailer or a towed sled with a buffer function according to claim 1, characterized in that: The front buffer (6) is a first compression spring (16), the rear buffer (7) is a second compression spring (17), and the first compression spring (16) and the second compression spring (17) are respectively sleeved on the circumferential side of the traction rod (4).

3. The adaptive traction connection structure for a trailer or a towed sled with a buffer function according to claim 1, characterized in that: The connecting rod (1) comprises a horizontal rod (8) and a connecting rod (9), one end of the connecting rod (1) is provided with a mounting seat (10), the connecting rod (9) is inserted and slidably moved in the mounting seat (10), the connecting rod (9) is evenly provided with a plurality of mounting holes (11) along the length direction, a fixing screw (12) is inserted and connected in the mounting seat (10), and the fixing screw (12) passes through one of the mounting holes (11).

4. The adaptive traction connection structure for a trailer or a towed sled with a buffer function according to claim 2, characterized in that: The traction rod (4) comprises a sliding rod (13) and a connecting ring (14); the connecting ring (14) is arranged at one end of the sliding rod (13); and the sliding rod (13) penetrates and slides in the sleeve (3).

5. The adaptive traction connection structure for a trailer or a towed sled with a buffer function according to claim 4, characterized in that: The sliding rod (13) is cylindrical, and the sleeve (3) is cylindrical.

6. The adaptive traction connection structure for a trailer or a towed sled with a buffer function according to claim 4, characterized in that: There is a gap between the sliding rod (13) and the sleeve (3).

7. The adaptive traction connection structure for a trailer or a towed sled with a buffer function according to claim 4, characterized in that The two ends of the slide rod (13) are respectively provided with limiting nuts (15), the sleeve (3) is located between the two limiting nuts (15), one end of the first compression spring (16) abuts against one end of the limiting nut (15), and the other end abuts against the front end of the sleeve (3), and one end of the second compression spring (17) abuts against one end of the other limiting nut (15), and the other end abuts against the rear end of the sleeve (3).

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