Handlebar folding structure for frame

Abstract

The utility model discloses a handlebar folding structure for a frame. The connector comprises an upper connector body, a lower connector body is rotationally installed at the bottom of the upper connector body, a locking sleeve is rotationally installed on one side of the lower connector body, a locking structure is installed at the bottom of one side of the upper connector body, and an installation cavity is formed in the middle of the two ends in the lower connector body. A movable rod is slidably mounted in the middle of the bottom end in the mounting cavity, and a spring is mounted on the outer surface of the movable rod. According to the folding bicycle, the limiting groove is formed in the bicycle frame, when a user unfolds the folding bicycle, the movable rod is extruded by the upper connector to move downwards, the bottom of the movable rod stretches out of the arc-shaped groove and enters the limiting groove, and when the user uses the folding bicycle, the limiting groove and the movable rod are matched to limit the rotating angle of the handlebar; when a front hub of the bicycle is subjected to side impact or a user excessively rotates the handle, the situation that the user falls down and is injured due to the fact that balance of the folding bicycle is damaged can be avoided, and a brake cable on the handle can be prevented from being twisted off.

Description

Technical Field

[0001] The utility model relates to the technical field of folding bicycles, and specifically relates to a handlebar folding structure for a vehicle frame. Background Technique

[0002] When the existing folding bicycle is in use, the handlebar of the vehicle frame is rotatably connected to the vehicle frame, and no limiting structure is provided between the handlebar of the vehicle frame and the vehicle frame. During the driving process of the folding bicycle, when the front hub of the vehicle is impacted from the side or the user rotates the handlebar excessively, the balance of the folding bicycle is easily damaged, causing the user to fall and get injured, or the brake wire on the handlebar is cut off. Content of the Utility Model

[0003] The purpose of the utility model is to provide a handlebar folding structure for a vehicle frame to solve the problems raised in the above background technique.

[0004] To achieve the above purpose, the utility model provides the following technical solution: A handlebar folding structure for a vehicle frame, including an upper joint, a lower joint is rotatably installed at the bottom of the upper joint, a locking sleeve is rotatably installed on one side of the lower joint, a locking structure is installed at the bottom of one side of the upper joint, installation cavities are opened at the middle positions of both ends inside the lower joint, a movable rod is slidably installed at the middle position of the bottom end inside the installation cavity, a spring is installed on the outer surface of the movable rod, arc-shaped grooves are opened at both ends of the bottom of the lower joint, and a vehicle frame is rotatably installed at the bottom of the lower joint.

[0005] By adopting the above technical solution, the top of the upper joint is connected to the handlebar, and the bottom of the lower joint is connected to the wheel. When the user stores the folding bicycle, the user releases the locking of the locking sleeve and the locking structure, and then the handlebar of the vehicle frame can be folded up, and the rotation angle of the handlebar is restricted by the movable rod to avoid accidents caused by the user rotating the handlebar excessively during the driving process.

[0006] Preferably, a rotating member is provided at the top of the other side of the lower joint, a connecting member is provided at the bottom of the other side of the upper joint, and the upper joint and the lower joint are rotatably connected through the cooperation between the rotating member and the connecting member.

[0007] Preferably, a rotating hole is opened at one side of the top of one end of the lower joint, the lower joint is rotatably connected to the locking sleeve through the rotating hole, and the upper joint and the lower joint are clamped through the cooperation between the locking sleeve and the locking structure.

[0008] By adopting the above technical solution, when storing, the user can bend and fold the upper joint and the lower joint by releasing the locking between the locking sleeve and the locking structure. When unfolding the folding bicycle, the user locks the upper joint and the lower joint through the locking sleeve and the locking structure, thereby unfolding the folding bicycle.

[0009] Preferably, a limiting ring is provided on the outer surface of the movable rod. The size of the limiting ring on the movable rod is slightly larger than that of the spring, and the movable rod is clamped with the spring through the limiting ring.

[0010] By adopting the above technical solution, when the folding bike is being stored, the movable rod is pushed upward through the cooperation between the spring and the limiting ring, releasing the limitation between the lower joint and the frame.

[0011] Preferably, through holes are provided at the middle positions of both ends of the top of the lower joint. The size of the through holes on the lower joint is slightly larger than that of the movable rod. The movable rod is slidably connected with the lower joint through the through holes. The arc-shaped groove is communicated with the through holes, and limiting grooves are provided at both ends of the top of the frame.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows: for the handlebar folding structure of this frame, a limiting groove is provided on the frame. When the user unfolds the folding bike, the movable rod moves downward under the extrusion of the upper joint, and the bottom of the movable rod extends out of the arc-shaped groove and enters the limiting groove. When the user is using the bike, the cooperation between the limiting groove and the movable rod restricts the rotation angle of the handlebar. When the front hub of the vehicle is impacted from the side or the user rotates the handlebar excessively, it can prevent the balance of the folding bike from being damaged and the user from falling and getting injured, and can also prevent the brake wire on the handlebar from being broken. Description of the Drawings

[0013] Figure 1 is a three-dimensional view of the present utility model;

[0014] Figure 2 is a side view of the present utility model;

[0015] Figure 3 is a side view sectional view of the internal structure of the present utility model;

[0016] Figure 4 is a side view sectional view of the folding structure and the frame of the present utility model.

[0017] In the figure: 1. Upper joint; 2. Lower joint; 3. Locking sleeve; 4. Locking structure; 5. Installation cavity; 6. Spring; 7. Movable rod; 8. Arc-shaped groove. Detailed Embodiment

[0018] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0019] Please refer to Figures 1-4, An embodiment provided by the present utility model: A handlebar folding structure for a vehicle frame, including an upper joint 1, a lower joint 2 is rotatably installed at the bottom of the upper joint 1, a locking sleeve 3 is rotatably installed on one side of the lower joint 2, a locking structure 4 is installed at the bottom on one side of the upper joint 1, installation cavities 5 are provided at the middle positions of both ends inside the lower joint 2, a movable rod 7 is slidably installed at the middle position of the bottom end inside the installation cavity 5, a spring 6 is installed on the outer surface of the movable rod 7, arc-shaped grooves 8 are provided at both ends of the bottom of the lower joint 2, a vehicle frame is rotatably installed at the bottom of the lower joint 2, the top of the upper joint 1 is connected to the handlebar, and the bottom of the lower joint 2 is connected to the wheel. When the user stores and folds the folding bike, the user releases the locking of the locking sleeve 3 and the locking structure 4, and then the handlebar of the vehicle frame can be folded up, and the rotation angle of the handlebar is restricted by the movable rod 7 to prevent the user from over-rotating the handlebar during driving and causing an accident.

[0020] In this embodiment, a rotating member is provided at the top of the other side of the lower joint 2, a connecting member is provided at the bottom of the other side of the upper joint 1, and the upper joint 1 and the lower joint 2 are rotatably connected through the cooperation between the rotating member and the connecting member.

[0021] In this embodiment, a rotating hole is provided at one side of the top of one end of the lower joint 2, and the lower joint 2 is rotatably connected to the locking sleeve 3 through the rotating hole. The upper joint 1 and the lower joint 2 are clamped through the cooperation between the locking sleeve 3 and the locking structure 4. When storing, by releasing the locking between the locking sleeve 3 and the locking structure 4, the user can bend and fold the upper joint 1 and the lower joint 2. When unfolding the folding bike, the user locks the upper joint 1 and the lower joint 2 through the locking sleeve 3 and the locking structure 4 to unfold the folding bike.

[0022] In this embodiment, a limiting ring is provided on the outer surface of the movable rod 7, the size of the limiting ring on the movable rod 7 is slightly larger than the size of the spring 6, and the movable rod 7 is clamped to the spring 6 through the limiting ring. When storing the folding bike, the movable rod 7 is pushed upward through the cooperation between the spring 6 and the limiting ring to release the limitation between the lower joint 2 and the vehicle frame.

[0023] In this embodiment, through holes are provided at the middle positions of both ends of the top of the lower joint 2, the size of the through holes on the lower joint 2 is slightly larger than the size of the movable rod 7, the movable rod 7 is slidably connected to the lower joint 2 through the through holes, the arc-shaped grooves 8 are communicated with the through holes, and limiting grooves are provided at both ends of the top of the vehicle frame.

[0024] Working principle: When the upper joint 1 and the lower joint 2 are separated, the movable rod 7 moves upward under the influence of the spring 6, and the movable rod 7 will not extend into the arc-shaped groove 8. The upper joint 1 and the lower joint 2 are mutually attached through the cooperation between the locking sleeve 3 and the locking structure 4. The movable rod 7 is squeezed by the upper joint 1, and the bottom of the movable rod 7 extends into the arc-shaped groove 8 and the limiting groove to play a limiting role.

[0025] For those skilled in the art, the present utility model is not limited to the details of the above exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or scope of the present utility model. Therefore, the embodiments of the present utility model are exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claimed invention.

Claims

1. A folding handlebar structure for a bicycle frame, comprising an upper joint (1), characterized in that: A lower joint (2) is rotatably mounted on the bottom of the upper joint (1), a locking sleeve (3) is rotatably mounted on one side of the lower joint (2), a locking structure (4) is mounted on the bottom of one side of the upper joint (1), a mounting cavity (5) is provided at the middle position of both ends of the lower joint (2), a movable rod (7) is slidably mounted at the middle position of the bottom end of the mounting cavity (5), a spring (6) is mounted on the outer surface of the movable rod (7), arc grooves (8) are provided at both ends of the bottom of the lower joint (2), and a frame is rotatably mounted on the bottom of the lower joint (2).

2. A handlebar folding structure for a bicycle frame according to claim 1, characterized in that: A rotating member is provided at the top of the other side of the lower joint (2), and a connecting member is provided at the bottom of the other side of the upper joint (1); the upper joint (1) and the lower joint (2) are rotatably connected through the cooperation between the rotating member and the connecting member.

3. The folding handlebar structure for a bicycle frame according to claim 1, characterized in that: A rotation hole is provided on one side of the top of one end of the lower joint (2), and the lower joint (2) is rotationally connected to the locking sleeve (3) through the rotation hole, and the upper joint (1) and the lower joint (2) are clamped together through the matching between the locking sleeve (3) and the locking structure (4).

4. The folding handlebar structure for a bicycle frame according to claim 1, characterized in that: A limiting ring is provided on the outer surface of the movable rod (7); the size of the limiting ring on the movable rod (7) is slightly larger than the size of the spring (6); and the movable rod (7) is clamped with the spring (6) via the limiting ring.

5. The handlebar folding structure for a bicycle frame according to claim 1, characterized in that: Through holes are provided at middle positions at both ends of the top of the lower joint (2); the size of the through hole on the lower joint (2) is slightly larger than the size of the movable rod (7); the movable rod (7) is slidably connected to the lower joint (2) through the through hole; the arc groove (8) is connected to the through hole; and limiting grooves are provided at both ends of the top of the frame.

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