Internal wiring structure of bicycle

Abstract

The utility model relates to the technical field of bicycles, in particular to a bicycle inner wiring structure which comprises a clamping base fixedly installed in the middle of the interior of a head tube in a bicycle frame, the clamping base is arranged on the front side wall, and a wire passing opening is formed in the clamping base. In the inner wiring process, a control line entering the head tube firstly downwards penetrates through a line passing opening in the clamping seat to enter the lower part position of the head tube, then is divided into two strands, and is backwards led into a lower cross beam in a frame through the left side and the right side of the front fork tube. In the process, the control line is divided into two strands behind the position of the lower part of the head tube and is introduced backwards into the lower cross beam, so that the control line can bypass a narrower position (namely the upper part of the head tube) in the head tube of the frame, and is internally routed through a wider part (namely the lower part of the head tube) in the head tube; and therefore, the head pipe can be narrower to realize better aerodynamics.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of bicycles, in particular to a bicycle internal wiring structure. BACKGROUND

[0002] With the increasing of auxiliary functions of bicycles, more and more control lines are needed, such as brake lines, gear shift lines and other electrical control lines. The layout of various control lines affects the driving safety of the bicycle and the protection degree of the control lines, and therefore, the rationality of the layout of various control lines becomes a key role.

[0003] In order to make the appearance of the bicycle more beautiful and better protect the control lines (including brake lines, gear shift lines and intelligent control wires), some bicycles currently adopt internal wiring in the pipe, which usually introduces the control lines into the head tube of the frame from the position of the handle, and then divides the control lines into two parts in the head tube, and directly introduces the control lines to the lower crossbeam in the frame through the left and right sides of the front fork tube, and then introduces the control lines to the tail of the bicycle through the internal wiring in the lower crossbeam.

[0004] Generally, based on the installation needs, the lower part of the head tube is larger than the upper part. The above internal wiring method directly introduces the control lines to the lower crossbeam at the upper part of the head tube, and in the process of normal riding and turning the handle, the front fork tube easily pushes the control lines on both sides, which seriously affects the normal riding. In addition, based on aerodynamics, in order to reduce wind resistance, the head tube needs to be as small as possible, which means that if the problem of pushing the lines is solved by increasing the head tube, a new problem of wind resistance may be caused. Therefore, further improvement can be made. CONTENT OF THE INVENTION

[0005] In order to solve the problem of pushing the lines in the process of internal wiring in the head tube while considering the aerodynamics of the head tube, the present application provides a bicycle internal wiring structure.

[0006] The bicycle internal wiring structure provided by the present application adopts the following technical scheme:

[0007] A bicycle internal wiring structure, comprising a clamping seat fixedly installed in the inside of a head tube, the clamping seat is arranged at a front side wall position, and a wire passing hole is formed in the clamping seat.

[0008] By adopting the technical scheme, in the internal wiring process, the control line entering the head tube first passes through the wire port in the clamping seat downward to enter the lower part of the head tube, and then is divided into two strands to be introduced into the lower cross beam in the frame through the left and right sides of the front fork tube. In this process, the control line is divided into two strands after the lower part of the head tube and is introduced into the lower cross beam, so that the wiring can be bypassed in the narrow position of the head tube of the frame (that is, the upper part of the head tube) and the wiring can be performed in the wide part of the head tube (that is, the lower part of the head tube) to realize internal wiring, so that the head tube can be made to be narrower to achieve better aerodynamics

[0009] Optionally, the wire port is in the form of a notch.

[0010] By adopting the technical scheme, the wire port is designed in the form of a notch, so that the inside of the wire port can have a smooth transition surface to avoid the occurrence of edges in the cross section of the wire port to scratch and damage the control line.

[0011] Optionally, the middle part of the inward side of the clamping seat is recessed inward to form an avoidance arc notch.

[0012] By adopting the technical scheme, the middle part of the inward side of the clamping seat is designed as an avoidance arc notch, which can effectively avoid the installation space of the front fork tube to avoid affecting the installation of the front fork tube.

[0013] Optionally, the connection between the clamping seat and the inner wall of the head tube is in the form of a rounded transition.

[0014] By adopting the technical scheme, the advantages of the rounded transition can effectively avoid stress concentration at the connection between the clamping seat and the inner wall of the head tube to affect the actual structural strength of the clamping seat, thereby ensuring the stability of subsequent internal wiring.

[0015] In summary, the present application includes at least one of the following beneficial technical effects:

[0016] 1. In the internal wiring process, the control line entering the head tube first passes through the wire port in the clamping seat downward to enter the lower part of the head tube, and then is divided into two strands to be introduced into the lower cross beam in the frame through the left and right sides of the front fork tube. In this process, the control line is divided into two strands after the lower part of the head tube and is introduced into the lower cross beam, so that the wiring can be bypassed in the narrow position of the head tube of the frame (that is, the upper part of the head tube) and the wiring can be performed in the wide part of the head tube (that is, the lower part of the head tube) to realize internal wiring, so that the head tube can be made to be narrower to achieve better aerodynamics;

[0017] 2. By designing the middle position of the inner side of the clamping seat as an avoiding arc, a circular arc slot is formed at the position, which can effectively avoid the installation space of the front fork tube, so as to avoid affecting the timely installation of the front fork tube;

[0018] 3. By using the advantages of the rounded transition, stress concentration between the clamping seat and the inner wall of the head tube can be effectively avoided, which affects the actual structural strength of the clamping seat, thereby ensuring the subsequent internal wiring stability. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a structural schematic diagram of a bicycle internal wiring structure of the present application.

[0020] MARKED FOR EXPLANATION:

[0021] 1, frame; 2, head tube; 3, lower cross beam; 4, clamping seat; 5, wire passing port; 6, avoiding arc. DETAILED DESCRIPTION

[0022] The following will be combined with the Figure 1 The present application will be further described in detail.

[0023] The present application discloses a bicycle internal wiring structure.

[0024] Embodiment 1:

[0025] Refer to Figure 1 A bicycle internal wiring structure, comprising a clamping seat 4 fixedly installed at the middle position of the head tube 2 inside the frame 1, wherein the clamping seat 4 is arranged at the front side wall position, and the clamping seat 4 is provided with a wire passing port 5. During the internal wiring process, the control line entering the head tube 2 first passes through the wire passing port 5 in the clamping seat 4 to enter the lower part position of the head tube 2, and then is divided into two strands and introduced to the lower cross beam 3 in the frame 1 through the left and right sides of the front fork tube.

[0026] Specifically, in the present embodiment, the wire passing port 5 is in the form of a slot, and the middle position of the inner side of the clamping seat 4 is recessed inward to form an avoiding arc 6. On the one hand, the wire passing port 5 is designed in the form of a slot, so that the inside can present a smooth transition surface, avoiding the occurrence of edges and corners in the wire passing port 5 to cause scratching damage to the control line. On the other hand, by designing the middle position of the inner side of the clamping seat 4 as an avoiding arc 6, a circular arc slot is formed at the position, which can effectively avoid the installation space of the front fork tube, so as to avoid affecting the timely installation of the front fork tube.

[0027] In the embodiment, the card seat 4 is integrally formed with the head tube 2, and the connection between the card seat 4 and the inner wall of the head tube 2 is in a round corner transition. On the one hand, the integrally formed between the card seat 4 and the head tube 2 can further simplify the processing technology, and facilitate the actual frame 1 processing and assembly work. On the other hand, by using the advantage of round corner transition, the stress concentration between the card seat 4 and the inner wall of the head tube 2 can be effectively avoided to affect the actual structural strength of the card seat 4, and the subsequent internal wiring stability is ensured.

[0028] Embodiment 2:

[0029] The difference between the embodiment and the embodiment 1 is that the structure of the card seat 4 is different.

[0030] Specifically, in the embodiment, the card seat 4 is welded and fixed with the head tube 2, the bottom of the wire passing port 5 in the card seat 4 is guided with a round corner, and the inner wall of the wire passing port 5 is sprayed with a wear-resistant layer. In the embodiment, the wear-resistant layer is a MoS2-based wear-resistant coating, which is a solid lubricant with MoS2 as the basic component and containing an organic binder, has a certain self-lubricating function, a low friction coefficient, and a good wear resistance.

[0031] Firstly, the card seat 4 is fixed with the head tube 2 by welding, so that the card seat 4 can be independently produced and welded and assembled in the actual production process, and the process is simple. Secondly, the bottom of the wire passing port 5 is treated with a round corner to control the damage and wear of the control line in the process of passing out of the wire passing port 5 and being introduced into the lower cross beam 3. Thirdly, since the position of the card seat 4 is relatively secret and the wire passing port 5 in the card seat 4 is relatively small, the control line is easy to rub and wear the inner wall of the wire passing port 5 in the actual wire laying or pulling process. The wear-resistant layer sprayed on the inner wall of the wire passing port 5 can further improve the wear resistance of the wire passing port 5 to reduce the friction and wear.

[0032] The implementation principle is:

[0033] By arranging the card seat 4 in the head tube 2 of the frame 1, in the internal wiring process, the control line entering the head tube 2 first passes through the wire passing port 5 in the card seat 4 and enters the lower part of the head tube 2, and then is divided into two strands and introduced into the lower cross beam 3 in the frame 1 through the left and right sides of the front fork tube. In this process, the control line is divided into two strands after the lower part of the head tube 2 and then introduced into the lower cross beam 3, so that the control line can bypass the narrow position (i.e. the upper part of the head tube 2) in the head tube 2 of the frame 1 and pass through the wider part (i.e. the lower part of the head tube 2) of the head tube 2 for internal wiring, so that the head tube 2 can be made narrower to achieve better aerodynamics.

[0034] The above are all preferred embodiments of the present application, and do not limit the protection scope of the present application, so that: all equivalent changes made according to the structure, shape, principle of the present application should be covered in the protection scope of the present application.

Claims

1. A wire routing structure in a bicycle, characterized by: The utility model relates to a bicycle frame, including the fixed installation in the middle position of the head tube (2) inside the frame (1) of the card seat (4), the card seat (4) is arranged at the front side wall position, and the card seat (4) is provided with the wire passing port (5) in.

2. The wire routing structure for a bicycle according to claim 1, wherein: The wire passing port (5) is in the form of a slot.

3. The wire routing structure for a bicycle according to claim 2, wherein: The middle position of the inward side of the card seat (4) is inwardly recessed to form a recessed arc (6).

4. The wire routing structure for a bicycle according to claim 2, wherein: The connection between the card seat (4) and the inner wall of the head tube (2) is in the form of a rounded transition.

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