Handlebar stem locking device for folding bicycle

Abstract

The utility model belongs to the technical field of bicycle parts, and particularly relates to a handlebar stem locking device for a folding bicycle, which comprises a handlebar locking device, a front fork locking device is arranged below the handlebar locking device, and an angle adjusting device is arranged at the lower end of the handlebar locking device. The angle adjusting device is arranged at the upper end of the front fork locking device and used for driving the handlebar locking device to rotate. Wherein the angle adjusting device comprises a crank and a gear shaft, and the crank is used for driving the gear shaft to rotate. The angle of the handlebar stem can be adjusted more quickly according to people with different heights, and the handlebar stem can be quickly adjusted according to the personal comfort degree, so that the fatigue feeling during riding is reduced, and the comfort degree of a rider is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of bicycle components, and particularly relates to a handlebar locking device for a folding bicycle. Background Art

[0002] The stem is an important part of a bicycle. It connects the front fork and handlebars and has a direct impact on riding comfort and control. Choosing the right stem requires considering several factors, including length, angle, height, and material.

[0003] However, most bicycles use the traditional fixed stem when they are manufactured, and the angle of the stem cannot be adjusted. As a result, when people of different heights ride the same bicycle, the experience will be different, which will increase riding fatigue and affect riding comfort. Utility Model Content

[0004] The purpose of the utility model is to provide a handlebar locking device for a folding bicycle, which can more quickly adjust the angle of the handlebar according to people of different heights and can be quickly adjusted according to personal comfort, thereby reducing fatigue during riding and increasing the comfort of the rider.

[0005] The technical solutions adopted by this utility model are as follows:

[0006] A handlebar locking device for a folding bicycle, comprising:

[0007] A handlebar locking device, wherein a front fork locking device is provided below the handlebar locking device, an angle adjustment device is provided at the lower end of the handlebar locking device, and the angle adjustment device is provided at the upper end of the front fork locking device, and the angle adjustment device is used to drive the handlebar locking device to rotate;

[0008] Wherein, the angle adjustment device includes a crank and a gear shaft, and the crank is used to drive the rotation of the gear shaft.

[0009] As one of the preferred embodiments of the present invention, the handlebar locking device includes an upper pressing block and a lower pressing block, and the four corners of the upper pressing block and the lower pressing block are respectively fixedly connected with mounting holes, the mounting holes are correspondingly provided with mounting bolts, and the mounting holes are rollingly connected to the mounting bolts, and the upper vertical tube is fixedly connected below the lower pressing block.

[0010] As one of the preferred embodiments of the present invention, the angle adjustment device includes a turning handle, one end of the turning handle is rotatably connected to a rotating shaft, the rotating shaft is rotatably connected to a gear shaft, both ends of the gear shaft are rotatably connected to the lower vertical pipe, and the other end of the gear shaft is fixedly connected to a crank via a locking member.

[0011] As one of the preferred embodiments of the present invention, the front fork locking device includes a front fork tube, two groups of mounting holes are respectively provided at both ends of one side of the front fork tube, and the mounting holes correspond to each other, and the other side of the front fork tube is fixedly connected to the lower seat tube.

[0012] As one of the preferred embodiments of the present invention, a gear-shaped through hole is opened at the lower end of the upper riser, the gear shaft is arranged in the gear-shaped through hole of the upper riser, and the gear shaft is meshed with the upper riser.

[0013] As one of the preferred embodiments of the present invention, a through hole is opened at one end of the lower riser, and a gear-shaped groove is opened on one side of the through hole of the lower riser, the gear shaft is arranged in the gear-shaped groove of the lower riser, and the gear shaft is engaged with the upper riser, and the through hole of the lower riser matches the lower end of the upper riser.

[0014] The technical effects achieved by this utility model are:

[0015] The utility model discloses a handlebar locking device for a folding bicycle, which can adjust the angle of the handlebar according to different heights of different people. By controlling the rotation of the gear shaft, the angle between the handlebar locking device and the front fork locking device is changed, so that the handlebar angle is adjusted to a suitable position, thereby increasing the comfort of the rider and reducing the rider's fatigue. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0017] Figure 2 It is a schematic diagram of the exploded structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the utility model when it is not adjusted;

[0019] Figure 4 This is a schematic diagram of the adjustment portion of the utility model;

[0020] Figure 5 It is a structural schematic diagram of the angle adjustment device of the present utility model.

[0021] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0022] 1. Handlebar locking device; 101. Upper pressure block; 102. Lower pressure block; 103. Upper seat tube; 2. Front fork locking device; 201. Front fork tube; 202. Lower seat tube; 3. Angle adjustment device; 301. Turning handle; 302. Rotating shaft; 303. Gear shaft; 4. Crank handle; 5. Mounting holes; 6. Mounting bolts. DETAILED DESCRIPTION

[0023] In order to make the purpose and advantages of the present invention more clearly understood, the present invention is described in detail below with reference to the following embodiments. It should be understood that the following text is only used to describe one or several specific implementation methods of the present invention and does not strictly limit the scope of protection specifically claimed by the present invention.

[0024] like Figure 1 As shown, a stem locking device for a folding bicycle includes a handlebar locking device 1, a front fork locking device 2 is provided below the handlebar locking device 1, an angle adjustment device 3 is provided at the lower end of the handlebar locking device 1, and the angle adjustment device 3 is provided at the upper end of the front fork locking device 2, and the angle adjustment device 3 is used to drive the handlebar locking device 1 to rotate;

[0025] The angle adjustment device 3 includes a crank 4 and a gear shaft 303 , and the crank 4 is used to drive the gear shaft 303 to rotate.

[0026] In this embodiment, when the handlebar angle is to be adjusted, the bicycle is assembled first, the handlebar is placed between the upper pressing block 101 and the lower pressing block 102 of the handlebar locking device 1, the mounting bolt 6 is placed in the mounting hole 5, and is tightened by rotation, the upper end of the front fork is placed in the front fork bundle tube 201 of the front fork locking device 2, the mounting bolt 6 is placed in the mounting hole 5, and is tightened by rotation, and when the angle between the handlebar locking device 1 and the front fork locking device 2 is adjusted, the handle 301 in the angle adjustment device 3 is rotated around the rotation axis 302 to the horizontal position. The angle adjustment device 3 is placed in the position, and the angle adjustment device 3 is pushed to the other side until it can no longer be pushed, and the crank 4 is installed on one end of the gear shaft 303, so that the crank 4 is rotated, and the gear shaft 303 starts to rotate, thereby adjusting the angle between the locking device and the front fork locking device 2. When the adjustment is completed, the crank 4 is removed, and the angle adjustment device 3 is pushed to the other side, and a part of the gear shaft 303 is pushed into the gear shaft 303 groove opened in the lower vertical tube 202, and the handle 301 is rotated downward around the rotating shaft 302, thereby completing a series of tasks.

[0027] like Figure 2 As shown, the handlebar locking device 1 includes an upper pressing block 101 and a lower pressing block 102. The four corners of the upper pressing block 101 and the lower pressing block 102 are fixedly connected with mounting holes 5, and the mounting holes 5 are correspondingly provided with mounting bolts 6. The mounting holes 5 are rollingly connected to the mounting bolts 6. An upper vertical tube 103 is fixedly connected to the bottom of the lower pressing block 102.

[0028] In the above manner, when assembling a bicycle, the handlebar is placed between the upper pressing block 101 and the lower pressing block 102 of the handlebar locking device 1, and the mounting bolt 6 is placed into the mounting hole 5 and rotated and tightened to secure it.

[0029] like Figures 2 to 5 As shown, the angle adjustment device 3 includes a handle 301, one end of the handle 301 is rotatably connected to a rotating shaft 302, and the rotating shaft 302 is rotatably connected to a gear shaft 303. Both ends of the gear shaft 303 are rotatably connected to the lower vertical pipe 202, and the other end of the gear shaft 303 is fixedly connected to the crank 4 through a locking member.

[0030] In the above manner, when adjusting the angle between the handlebar locking device 1 and the front fork locking device 2, the turning handle 301 in the angle adjustment device 3 is rotated around the rotating shaft 302 to a horizontal position, and the angle adjustment device 3 is pushed to the other side until it can no longer be pushed. The crank 4 is then mounted on one end of the gear shaft 303, and the crank 4 is rotated, causing the gear shaft 303 to start rotating, thereby adjusting the angle between the handlebar locking device 1 and the front fork locking device 2. When the adjustment is completed, the crank 4 is removed, and the angle adjustment device 3 is pushed to the other side, pushing a portion of the gear shaft 303 into the gear shaft 303 groove opened in the lower seat tube 202, and the turning handle 301 is rotated downward around the rotating shaft 302.

[0031] The locking member can be a bolt, a buckle or other components, or any other detachable fixing structure. The installed detachable locking member can enable the crank 4 to be quickly disassembled.

[0032] like Figure 2 As shown, the front fork locking device 2 includes a front fork tube 201 , two groups of mounting holes 5 are respectively provided at both ends of one side of the front fork tube 201 , and the mounting holes 5 correspond to each other, and the other side of the front fork tube 201 is fixedly connected to the lower seat tube 202 .

[0033] In the above method, the upper end of the front fork is placed into the front fork tube 201 of the front fork locking device 2, and the mounting bolt 6 is placed into the mounting hole 5, and is rotated and tightened to fix it.

[0034] like Figure 2 As shown, a gear-shaped through hole is opened at the lower end of the upper riser 103 , and the gear shaft 303 is disposed in the gear-shaped through hole opened in the upper riser 103 , and the gear shaft 303 is meshed with the upper riser 103 .

[0035] In the above method, when the handlebar angle is to be adjusted, the turning handle 301 in the angle adjustment device 3 is rotated around the rotating shaft 302 to a horizontal position, the angle adjustment device 3 is pushed to the other side until it can no longer be pushed, and the crank 4 is installed on one end of the gear shaft 303, thereby rotating the crank 4, causing the gear shaft 303 to start rotating, thereby causing the handlebar locking device 1 to rotate.

[0036] like Figure 2As shown, a through hole is opened at one end of the lower riser 202, and a gear-shaped groove is opened on one side of the through hole of the lower riser 202. The gear shaft 303 is set in the gear-shaped groove of the lower riser 202, and the gear shaft 303 is engaged with the upper riser 103. The through hole of the lower riser 202 matches the lower end of the upper riser 103.

[0037] In the above method, when adjusting the angle between the handlebar locking device 1 and the front fork locking device 2, the turning handle 301 in the angle adjustment device 3 is rotated around the rotating shaft 302 to a horizontal position, and the angle adjustment device 3 is pushed to the other side until it can no longer be pushed, and the crank 4 is installed on one end of the gear shaft 303, so that the crank 4 is rotated, and the gear shaft 303 starts to rotate. Due to the rotation of the gear shaft 303, the upper vertical tube 103 in the handlebar locking device 1 is rotated, and the angle between the handlebar locking device 1 and the front fork locking device 2 is adjusted.

[0038] The working principle of the utility model is as follows: when preparing to adjust the handlebar angle, first assemble the bicycle, put the handlebar between the upper pressing block 101 and the lower pressing block 102 of the handlebar locking device 1, put the mounting bolt 6 into the mounting hole 5, and rotate and tighten it, put the upper end of the front fork into the front fork bundle tube 201 of the front fork locking device 2, put the mounting bolt 6 into the mounting hole 5, and rotate and tighten it, and when starting to adjust the angle between the handlebar locking device 1 and the front fork locking device 2, rotate the handle 301 in the angle adjustment device 3 around the rotating shaft 302 to the horizontal Position, push the angle adjustment device 3 to the other side until it can no longer be pushed, install the crank 4 on one end of the gear shaft 303, and rotate the crank 4 to make the gear shaft 303 start to rotate, thereby adjusting the angle between the locking device and the front fork locking device 2. When the adjustment is completed, remove the crank 4, and push the angle adjustment device 3 to the other side, push a part of the gear shaft 303 into the gear shaft 303 groove opened in the lower vertical tube 202, and rotate the handle 301 downward around the rotating shaft 302, thereby completing a series of tasks.

[0039] The above is only a preferred embodiment of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and such improvements and modifications should also be considered within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described and explained in this application shall be implemented in accordance with conventional means in the art unless otherwise specified or limited.

Claims

1. A handlebar locking device for a folding bicycle, characterized in that: include: A handlebar locking device (1), wherein a front fork locking device (2) is provided below the handlebar locking device (1), an angle adjustment device (3) is provided at the lower end of the handlebar locking device (1), and the angle adjustment device (3) is provided at the upper end of the front fork locking device (2), and the angle adjustment device (3) is used to drive the handlebar locking device (1) to rotate; The angle adjustment device (3) comprises a crank (4) and a gear shaft (303), and the crank (4) is used to drive the gear shaft (303) to rotate.

2. A folding bicycle handlebar locking device according to claim 1, characterized in that: The handlebar locking device (1) comprises an upper pressing block (101) and a lower pressing block (102), wherein four corners of the upper pressing block (101) and the lower pressing block (102) are respectively fixedly connected with mounting holes (5), the mounting holes (5) are correspondingly provided with mounting bolts (6), and the mounting holes (5) are rollingly connected to the mounting bolts (6), and an upper vertical tube (103) is fixedly connected below the lower pressing block (102).

3. The handlebar locking device for a folding bicycle according to claim 1, characterized in that: The angle adjustment device (3) comprises a rotating handle (301), one end of the rotating handle (301) is rotatably connected to a rotating shaft (302), a gear shaft (303) is rotatably connected to the rotating shaft (302), both ends of the gear shaft (303) are rotatably connected to the lower vertical pipe (202), and the other end of the gear shaft (303) is fixedly connected to a crank (4) via a locking member.

4. The handlebar locking device for a folding bicycle according to claim 2, characterized in that: The front fork locking device (2) comprises a front fork tube (201), two groups of mounting holes (5) are respectively provided at both ends of one side of the front fork tube (201), and the mounting holes (5) correspond to each other in pairs, and the other side of the front fork tube (201) is fixedly connected to a lower standpipe (202).

5. The handlebar locking device for a folding bicycle according to claim 4, characterized in that: A gear-shaped through hole is opened at the lower end of the upper riser (103), the gear shaft (303) is arranged in the gear-shaped through hole opened in the upper riser (103), and the gear shaft (303) is meshed with the upper riser (103).

6. The handlebar locking device for a folding bicycle according to claim 5, characterized in that: A through hole is opened at one end of the lower riser (202), and a gear-shaped groove is opened on one side of the through hole of the lower riser (202). The gear shaft (303) is arranged in the gear-shaped groove of the lower riser (202), and the gear shaft (303) is engaged with the upper riser (103). The through hole of the lower riser (202) matches the lower end of the upper riser (103).

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