Rotary pull lug structure of adjusting pull rod of tricycle

Abstract

The utility model discloses a tricycle adjusting pull rod rotating pull lug structure which comprises an adjusting pull rod arranged on a rear axle, a pull lug is arranged at the end of the adjusting pull rod through a pin shaft, a bolt used for fixing the pin shaft is arranged at the side end of the pull lug, and the front end of the pull lug is arranged on a frame through a screw. A pull lug shaft sleeve which is arranged on the screw in a sleeving mode and used for preventing the screw from swinging in the radial direction is arranged on the inner side of the frame, and a bolt used for fixing the screw to the frame is arranged on the outer side of the pull lug shaft sleeve. According to the rotating pull lug structure of the adjusting pull rod of the tricycle, the pull lug shaft sleeve is arranged on the frame to fix the screw at the end of the pull lug, so that the adjusting pull rod freely rotates along the pull lug shaft sleeve under the action of the pull lug, axial torsion generated by bumping of a rear axle is counteracted, and the service life of the tricycle is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of tricycle manufacturing technology, and more specifically to a tricycle adjustment lever rotating lug structure. Background Technology

[0002] When a tricycle is carrying a heavy load, especially on bumpy roads such as dirt roads and mountain roads, the rear axle will bounce up and down significantly due to the impact. Since the rear axle and the tricycle frame are fixed together by adjusting rods with screws, the force of the rear axle's up-and-down bounce will be transmitted to the frame through the adjusting rods. Because the existing structure of the lugs and adjusting rods can only move up and down, the rear axle is only effective when it moves up and down in parallel. However, in actual road conditions, the left and right wheels cannot rise and fall at the same time, so axial torque is generated, which damages the adjusting rods and the strength of the frame, and will pose a safety hazard to the vehicle in the long run. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a rotating lug structure for adjusting the lever of a tricycle, which can counteract the axial torque generated by the bumps of the rear axle and improve the service life of the vehicle.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows.

[0005] The tricycle adjustment lever rotating lug structure includes an adjustment lever mounted on the rear axle. The end of the adjustment lever is provided with a lug via a pin. The side end of the lug is provided with a bolt for fixing the pin. The front end of the lug is mounted on the frame by a screw. The inner side of the frame is provided with a lug bushing that is fitted onto the screw to prevent the screw from wobbling radially. The outer side of the lug bushing is provided with a bolt for fixing the screw to the frame.

[0006] To further optimize the technical solution, an anti-loosening nut is fitted onto the screw on the outside of the bolt.

[0007] To further optimize the technical solution, a nylon pad is provided between the pull lug and the frame.

[0008] To further optimize the technical solution, a nylon pad is provided between the pull lug sleeve and the bolt.

[0009] The technical solution has been further optimized, with the pull lug sleeve welded to the vehicle frame.

[0010] The technological advancements achieved by this utility model are as follows, due to the adoption of the above technical solutions.

[0011] The tricycle adjustment lever rotating lug structure provided by this utility model has a lug bushing set on the frame to fix the screw at the end of the lug, so that the adjustment lever can rotate freely along the lug bushing under the action of the lug, thereby counteracting the axial torque caused by the bumps of the rear axle and improving the service life of the vehicle. Attached Figure Description

[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 installation structure of this utility model.

[0014] The components include: 1. frame, 2. lug, 3. adjusting rod, 4. pin, 5. bolt, 6. screw, 7. nylon pad, 8. anti-loosening nut, and 9. lug bushing. Detailed Implementation

[0015] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0016] The tricycle's adjustable lever rotating lug structure, combined with Figure 1 As shown, it includes an adjusting rod 3 installed on the rear axle. The end of the adjusting rod 3 is provided with a lug 2 via a pin 4. A bolt 5 is provided on the side end of the lug 2 to fix the pin 4, thereby fixing the adjusting rod 3 and the lug 2. The adjusting rod can rotate along the lug.

[0017] The front end of the pull lug 2 is mounted on the frame 1 by a screw 6. A pull lug bushing 9 is welded to the inner side of the frame 1. The screw passes through the pull lug bushing 9 to prevent the screw 6 from swinging radially. A bolt 5 is provided on the outer side of the pull lug bushing 9 to fix the screw 6 to the frame 1, thereby achieving the connection between the pull lug 2 and the frame 1.

[0018] An anti-loosening nut 8 is fitted on the screw 6 on the outside of bolt 5 to improve the reliability of the connection between the lug and the frame.

[0019] A nylon pad 7 is provided between the pull lug 2 and the frame 1, and a nylon pad 7 is provided between the pull lug bushing 9 and the bolt 5, in order to further improve the reliability of the connection between the pull lug and the frame.

[0020] The installation structure diagram of this utility model is shown below. Figure 2 As shown, when there is a height difference between the left and right wheels of the tricycle in actual road conditions, the resulting axial torque causes the adjusting rod to rotate freely along the lug bushing under the action of the lug, thereby counteracting the axial torque caused by the bumps of the rear axle and improving the service life of the vehicle.

Claims

1. A rotating lug structure for adjusting the lever of a tricycle, characterized in that: The system includes an adjusting rod (3) mounted on the rear axle. The end of the adjusting rod (3) is provided with a lug (2) via a pin (4). The side end of the lug (2) is provided with a bolt (5) for fixing the pin. The front end of the lug (2) is mounted on the frame (1) via a screw (6). The inner side of the frame (1) is provided with a lug bushing (9) fitted on the screw (6) to prevent the screw (6) from swinging radially. The outer side of the lug bushing (9) is provided with a bolt (5) for fixing the screw (6) to the frame (1).

2. The tricycle adjusting rod rotating lug structure according to claim 1, characterized in that: An anti-loosening nut (8) is fitted on the screw (6) on the outside of the bolt (5).

3. The tricycle adjusting lever rotating lug structure according to claim 1, characterized in that: A nylon pad (7) is provided between the pull lug (2) and the frame (1).

4. The tricycle adjusting rod rotating lug structure according to claim 1, characterized in that: A nylon pad (7) is provided between the pull lug sleeve (9) and the bolt (5).

5. The tricycle adjusting lever rotating lug structure according to claim 1, characterized in that: The lug bushing (9) is welded to the frame (1).

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