Bicycle shell spool

Abstract

A bicycle shell wire pipe is composed of multiple sections of straight pull type wire pipes and a spiral type wire pipe, the multiple sections of straight pull type wire pipes and the spiral type wire pipe are communicated through wire pipe adapters, the shell wire pipe corresponding to bent wiring concentration of a bicycle frame is the spiral type wire pipe, and the shell wire pipe corresponding to straight wiring of the bicycle frame is the straight pull type wire pipe. According to the bicycle outer wire pipe, the bicycle outer wire pipe serves as a speed regulation outer wire pipe, different outer wire pipes are adopted for a bent wire concentration area and straight pipe fitting wire arrangement, and therefore installation and maintenance are convenient, machining cost is low, and the bicycle outer wire pipe has practical value.

Description

Technical Field

[0001] The utility model relates to bicycle accessories, in particular to an outer shell wire tube used for a bicycle transmission. Background Art

[0002] Bicycles, also known as pedal bikes, are powered by pedals and are green and environmentally friendly means of transportation. More and more people use bicycles as fitness equipment for cycling, cycling, etc. Bicycles themselves are also a sport, including road cycling, mountain biking, track cycling, stunt biking, etc.

[0003] People have higher and higher requirements for bicycles, not only to reduce risks but also to improve safety. In particular, there have been many improvements to the outer line tubes of brakes and speed regulators. Usually there are two types of outer line tubes: one is the straight pull line tube with strong rigidity and not easy to bend (such as Figure 2 ); the second is a spiral wire tube with good flexibility and easy bending (such as Figure 3 ).

[0004] At present, the speed regulator outer cable tube is led from the horizontal handlebar through the front vertical bar and the down tube to the speed regulator at the lower fork end (rear derailleur), or to the derailleur on the middle tube (front derailleur). A straight-pull outer cable tube is usually used, but the speed regulator outer cable tube in the area where the curved wiring is concentrated will be deformed due to the forceful stretching of the speed change wire, resulting in inaccurate and unsafe speed shifting. Summary of the invention

[0005] In order to make up for the above shortcomings, the utility model provides a bicycle outer line tube as a speed regulating outer line tube. Different outer line tubes are used for the curved wiring concentrated area and the straight pipe wiring. This is convenient for installation and maintenance, has low processing cost, and has practical value.

[0006] The technical solution of the utility model is achieved as follows: a bicycle outer shell wire tube, which is composed of a plurality of sections of straight-pull wire tubes and a spiral wire tube. The plurality of sections of straight-pull wire tubes and the spiral wire tubes are connected through a wire tube adapter. The outer shell wire tube corresponding to the concentrated curved wiring of the frame is a spiral wire tube, while the outer shell wire tube corresponding to the straight wiring of the frame is a straight-pull wire tube.

[0007] As a further improvement of the utility model, the outer cable tube of the transmission is composed of two straight-pull cable tubes and a spiral cable tube connected to the two straight-pull cable tubes through a cable tube adapter, wherein one straight-pull cable tube corresponds to the down tube and the lower fork of the frame, the other straight-pull cable tube corresponds to the horizontal handlebar of the frame, and the spiral cable tube corresponds to the front vertical rod and the front tube of the frame.

[0008] The beneficial technical effect of the utility model is that the outer shell wire tube of the bicycle is composed of multiple sections of straight-pull wire tubes and spiral wire tubes, and the multiple sections of straight-pull wire tubes and the spiral wire tubes are connected by wire tube adapters. The outer shell wire tube corresponding to the frame curved wiring is a spiral wire tube, because the spiral wire tube is easy to bend and the outer wire tube will not be deformed, and the outer shell wire tube corresponding to the frame straight wiring is a straight-pull wire tube. The straight-pull wire tube has strong rigidity and is easy to stick to the straight wire tube. Such a wiring design is safe and reliable, easy to install and maintain, low in processing cost, and has practical value. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a schematic diagram of the structure of the utility model;

[0010] Figure 2 It is a schematic diagram of the cross section of the straight-pull type wire tube;

[0011] Figure 3 It is a schematic diagram of the cross-section of the spiral wire tube. DETAILED DESCRIPTION

[0012] Combination Figure 1 , Figure 2 and Figure 3 , the following is a detailed statement:

[0013] A bicycle outer shell wire tube, which consists of a multi-section straight-pull wire tube 1 and a spiral wire tube 3. The multi-section straight-pull wire tube 1 and the spiral wire tube 3 are connected through a wire tube adapter 2. The outer shell wire tube corresponding to the curved wiring concentration of the frame is a spiral wire tube, while the outer shell wire tube corresponding to the straight wiring of the frame is a straight-pull wire tube.

[0014] More specifically, the outer wire tube of the bicycle as the outer wire tube of the speed change is composed of two straight-pull wire tubes 1 and a spiral wire tube 3 connected to the two straight-pull wire tubes 1 through a wire tube adapter 2. One straight-pull wire tube corresponds to the lower tube and lower fork of the frame, the other straight-pull wire tube corresponds to the horizontal handlebar of the frame, and the spiral wire tube corresponds to the front vertical rod and the front tube of the frame. The outer wire tube leads from the horizontal handlebar to the lower tube through the front vertical rod and the front tube. This section is more curved. The spiral wire tube is used to prevent the outer wire tube from being stretched and deformed by the internal speed regulating wire. The outer wire tube corresponds to the horizontal handlebar, the lower tube and the lower fork, which is a straight pipe fitting. The rigid straight-pull wire tube is used. This design is easy to install and maintain, beautiful in appearance and safe, and has use value.

[0015] Through the above improvements, the bicycle outer cable tube provided by the utility model adopts a straight-pull cable tube corresponding to the straight part of the front fork tube or the rear fork tube of the frame and the straight part of the horizontal handlebar, and adopts a spiral cable tube corresponding to the wiring part of the front fork tube or the rear fork tube and the horizontal handlebar of the frame. In this way, the wiring of the straight pipe is closer, and the wiring in the distortion concentrated area is reduced by adopting the spiral cable tube. In this way, the overall wiring of the outer cable tube is more reasonable, beautiful and safe, the cost is low, and it has use value.

[0016] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention.

Claims

1. A bicycle outer casing wire tube, characterized in that: The invention comprises a plurality of sections of straight-pull type wire tubes (1) and a spiral type wire tube (3), wherein the plurality of sections of straight-pull type wire tubes (1) and the spiral type wire tubes (3) are connected via a wire tube adapter (2); the outer shell wire tube corresponding to the concentrated curved wiring of the frame is a spiral type wire tube, while the outer shell wire tube corresponding to the straight wiring of the frame is a straight-pull type wire tube.

2. The bicycle outer casing wire tube according to claim 1, characterized in that: The utility model is used as an outer wire tube of a transmission, and is composed of two straight-pull wire tubes (1) and a spiral wire tube (3) which is connected to the two straight-pull wire tubes (1) through a wire tube adapter (2).

3. The bicycle outer casing wire tube according to claim 2, characterized in that: One of the straight-pull cable tubes corresponds to the down tube and the lower fork of the frame, the other straight-pull cable tube corresponds to the horizontal handlebar of the frame, and the spiral cable tube corresponds to the front vertical rod and the front tube of the frame.

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