A handlebar structure with adjustable angle

Abstract

The utility model relates to the technical field of handlebars, and in particular to a handlebar structure with adjustable angle; it comprises a liner and a handlebar tube detachably mounted at both ends of the liner, vertical mounting holes are arranged at both ends of the liner, one end of the handlebar tube close to the mounting hole is connected to the liner through a mounting hole spline, a limiting mechanism is arranged between the mounting hole and the handlebar tube, the limiting mechanism comprises a limiting hole arranged on the liner at the periphery of the mounting hole, a limiting screw threadedly connected to the limiting hole, and an arc groove arranged on the outer peripheral surface of the handlebar tube close to the mounting hole, the middle part of the limiting hole is connected to the outer peripheral surface of the mounting hole, after the limiting screw is inserted into the limiting hole, its peripheral side surface can be partially stuck in the arc groove, the inner wall of the mounting hole is provided with an inner spline, and the outer peripheral surface of the handlebar tube close to the mounting hole is provided with an outer spline matching the inner spline; after the utility model improves the prior art, the handlebar structure has good structural stability, safety and reliability after the angle is adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of handlebars, in particular to a handlebar structure with adjustable angles. Background Art

[0002] At present, the handlebars of bicycles, electric vehicles and motorcycles are fixed and cannot be rotated and adjusted. Since different people have different shoulder widths, the optimal comfortable angle for their arms to hold the handlebars is also different. For people who ride for a long time, if the handlebar angle is not suitable, their arms are prone to soreness and swelling.

[0003] In view of this, a Chinese patent document with the authorization number CN215475568U discloses an ergonomic handlebar structure for an electric power-assisted bicycle, comprising a straight-tube-shaped liner and handlebar tubes with adjustable angles installed at both ends thereof, the handlebar tube consists of a horizontal section and a vertically bent support tube at one end thereof, a connecting sleeve is sleeved on the top of the support tube, a pipe sleeve tightly sleeved with the liner is connected on one radial side of the connecting sleeve, an angle sleeve for accurately measuring the angle between the two handlebar tubes is sleeved on the top of the connecting sleeve, and the liner tube is provided with a plurality of handlebar tubes, wherein ... The inner cavity is provided with a pre-tightening shaft for limiting the rotation of the handlebar tube in the middle part, a pre-tightening bolt is inserted in the middle of the top surface of the liner, and an annular groove clamped with the pre-tightening shaft is opened on the outer side of the top of the support tube, and the two ends of each pre-tightening shaft are respectively against the corresponding annular groove and the side of the pre-tightening bolt; after adjusting the angle of the handlebar tube, the pre-tightening shaft is pushed axially by the pre-tightening bolt to be clamped in the annular groove and against the squeeze support tube to fix the handlebar tube, but this fastening method has poor stability and is prone to loosening, causing the handlebar tube to rotate during riding and affecting personal safety.

[0004] Therefore, it is necessary to improve the deficiencies in the above prior art. Summary of the invention

[0005] The technical problem to be solved by the utility model is to provide a handlebar structure with adjustable angle in view of the above-mentioned deficiencies in the prior art, so as to solve the problem in the prior art that the fastening stability of the handlebar tube is poor and affects the riding safety.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an angle-adjustable handlebar structure, comprising a liner and a handlebar tube detachably mounted on both ends of the liner, vertical mounting holes being arranged at both ends of the liner, one end of the handlebar tube close to the mounting hole being spline-connected to the liner through the mounting hole, and a limiting mechanism being arranged between the mounting hole and the handlebar tube, which can limit the axial fixation of the handlebar tube relative to the mounting hole.

[0007] By adopting the above technical solution, the handlebar tube is installed in the mounting holes at both ends of the liner and the circumferential rotation is limited by the spline connection. The handlebar tube is then axially fixed by the limiting mechanism to prevent it from being separated from the liner. The spline connection between the handlebar tube and the liner not only allows accurate angle adjustment but also has strong load-bearing capacity and good stability, thereby reliably ensuring riding safety.

[0008] The above technical solution is further configured as follows: the limiting mechanism includes a limiting hole arranged on the outer periphery of the mounting hole, a limiting screw threadedly connected to the limiting hole, and an arc groove arranged on the outer peripheral surface of one end of the handlebar tube near the mounting hole, the middle part of the limiting hole is connected to the outer peripheral surface of the mounting hole, and after the limiting screw is inserted into the limiting hole, its peripheral side surface can be partially stuck in the arc groove.

[0009] By adopting the above technical solution, during assembly, the handlebar tube is first adjusted to the right angle and inserted into the mounting hole, and then the limit screw is inserted into the limit hole and tightened. The peripheral side surface of the limit screw is partially inserted into the arc groove, thereby limiting the handlebar tube so that it cannot be detached from the mounting hole of the liner.

[0010] The above technical solution is further configured as follows: an inner wall of the mounting hole is provided with an internal spline, and an outer peripheral surface of the handlebar tube close to one end of the mounting hole is provided with an external spline matching the internal spline.

[0011] By adopting the above technical solution, the outer spline of the handlebar tube is connected with the inner spline of the mounting hole of the liner tube, so that they are circumferentially fixed without relative deflection.

[0012] The above technical solution is further configured as follows: a radial gap is formed at the place where the outer peripheral surface of the mounting hole and the limiting hole are connected.

[0013] By adopting the above technical solution, the radial gap is set to make it easier to insert the handlebar tube into the mounting hole during assembly, and then the tightness of the engagement between the inner spline and the outer spline can be adjusted by threading the limit screw with the limit hole.

[0014] The above technical solution is further configured as follows: the limiting hole, the limiting screw and the arc groove are all configured as two, upper and lower ones.

[0015] By adopting the above technical solution, the handlebar tube is limited at both the upper and lower ends at the same time, so as to further improve the limit firmness and stability.

[0016] The above technical solution is further configured as follows: the outer peripheral surface of the handlebar tube at the external spline is provided with a first threading hole facing the middle of the liner, and the upper and lower ends of the middle of the liner are respectively provided with a second threading hole and a third threading hole.

[0017] By adopting the above technical solution, by setting the first threading hole, the second threading hole and the third threading hole, it is convenient to run the wires inside the handlebar tube and the liner tube, which is more beautiful.

[0018] The beneficial effects achieved by the utility model are that the handlebar structure has good structural stability, safety and reliability after the angle is adjusted. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of an embodiment of the utility model;

[0020] Figure 2 It is a schematic diagram of the explosion structure of an embodiment of the utility model;

[0021] Figure 3 is an internal cross-sectional view of a liner in an embodiment of the utility model;

[0022] Figure 4 It is a structural schematic diagram of a liner pipe in an embodiment of the utility model;

[0023] Figure 5 It is a structural schematic diagram of the handlebar tube in the embodiment of the utility model. DETAILED DESCRIPTION

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

[0025] like Figure 1-5 As shown in the figure, an angle-adjustable handlebar structure comprises a liner 1 and a handlebar tube 2 detachably mounted at both ends of the liner 1, vertical mounting holes 10 are arranged at both ends of the liner 1, one end of the handlebar tube 2 close to the mounting hole 10 is spline-connected to the liner 1 through the mounting hole 10, a limiting hole 11 is arranged on the outer periphery of the mounting hole 10, and a limiting screw 12 is threadedly connected to the limiting hole 11, an arc groove 20 is arranged on the outer peripheral surface of the handlebar tube 2 close to the mounting hole 10, the middle part of the limiting hole 11 is connected to the outer peripheral surface of the mounting hole 10, and the limiting screw 12 is inserted into the limiting hole 11. The circumferential side surface can be partially inserted into the arc groove 20, the inner wall of the mounting hole 10 is provided with an internal spline 13, and the outer circumferential surface of the handlebar tube 2 near the mounting hole 10 is provided with an external spline 21 matching the internal spline 13. The liner 1 is provided with a radial gap 14 at the place where the outer circumferential surface of the mounting hole 10 and the limiting hole 11 are connected. The limiting hole 11, the limiting screw 12 and the arc groove 20 are all arranged in two upper and lower parts. The handlebar tube 2 is provided with a first threading hole 22 facing the middle part of the liner 1 on the outer circumferential surface at the external spline 21, and a second threading hole 15 and a third threading hole 16 are respectively provided at the upper and lower ends of the middle part of the liner 1.

[0026] In the above embodiment, during assembly, the handlebar tube 2 is first adjusted to a correct angle and inserted into the mounting holes 10 at both ends of the liner tube 1 so that the outer splines 21 of the handlebar tube 2 engage with the inner splines 13 of the mounting holes 10 to form a spline connection to limit circumferential rotation. The limit screw 12 is then inserted into the limit hole 11 and tightened. The circumferential side surface of the limit screw 12 is partially inserted into the arc groove 20, thereby limiting the position of the handlebar tube 2 so that it cannot be separated from the mounting hole 10 of the liner tube 1. The spline connection between the handlebar tube 2 and the liner tube 1 not only has accurate angle adjustment but also has strong load-bearing capacity and good stability, thereby reliably ensuring riding safety.

Claims

1. A handlebar structure with adjustable angle, comprising a liner and handlebar tubes detachably mounted at both ends of the liner, characterized in that: Vertical mounting holes are provided at both ends of the liner, and the end of the handlebar tube near the mounting hole is connected to the liner through a mounting hole spline. A limiting mechanism is provided between the mounting hole and the handlebar tube, which can limit the axial fixation of the handlebar tube relative to the mounting hole. The limiting mechanism includes a limiting hole provided on the outer periphery of the mounting hole of the liner, a limiting screw threadedly connected to the limiting hole, and an arc groove provided on the outer peripheral surface of one end of the handlebar tube near the mounting hole. The middle part of the limiting hole is connected to the outer peripheral surface of the mounting hole. After the limiting screw is inserted into the limiting hole, its peripheral side surface can be partially stuck in the arc groove.

2. The handlebar structure with adjustable angle according to claim 1, characterized in that: The inner wall of the mounting hole is provided with an internal spline, and the outer peripheral surface of the handlebar tube close to one end of the mounting hole is provided with an external spline matching the internal spline.

3. The handlebar structure with adjustable angle according to claim 2, characterized in that: The liner is provided with a radial gap at the position where the outer peripheral surface of the mounting hole and the limiting hole are connected.

4. The handlebar structure with adjustable angle according to claim 3, characterized in that: The limiting holes, limiting screws and arc-shaped grooves are all arranged in two pieces, one above the other.

5. The handlebar structure with adjustable angle according to any one of claims 2 to 4, characterized in that: The outer peripheral surface of the handlebar tube at the external spline is provided with a first threading hole facing the middle part of the liner tube, and the upper and lower ends of the middle part of the liner tube are respectively provided with a second threading hole and a third threading hole.

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