CN105020244A - Anti-oxidation brake cable - Google Patents

Abstract

The invention relates to an anti-oxidation brake cable which comprises a brake cable body (1) and steel wires (2). The brake cable body comprises a liner pipe (1.1) and a wrapping layer (1.2). The liner pipe (1.1) is arranged in the wrapping layer (1.2). The wrapping layer (1.2) is in a spring curve shape in the length direction. The metal wire set (2) is arranged in the liner pipe (1.1). One end of an outer sleeve pipe (3) is arranged outside the wrapping layer (1.2), and the other end of the outer sleeve pipe (3) extends outwards in the axial direction and is arranged on the steel wires (2). An annular belt (4) is arranged at one end of the metal wire set (2), and the surface of the brake cable body (1) is coated with an anti-oxidation coating. The anti-oxidation brake cable facilitates folding of a bicycle, is not prone to breaking and facilitates running safety. The surface of the brake cable body is provided with the anti-oxidation coating, and normal use of the brake cable is guaranteed.

Description

A kind of anti-oxidant braking string

Technical field

The present invention relates to a kind of anti-oxidant braking string, for folding bicycle brake system.Belong to bicycle accessories technical field.

Background technique

Folded bicycle has collapsible, easy manipulation, portable advantage, does not also need by external tools in folding using process, manually folding or launch from being about to car, after folding, can be more conveniently accommodated in automobile trunk or boarding case.

Existing folding bicycle is after vehicle folding, and braking string cannot be folded, and its length does not change, and longer one section bends outside, is easily hooked to by external object, affects the folder function of vehicle in vehicle transport process; And the steel wire in existing braking string internal lining pipe, owing to being single metal wire, can cause its insufficient strength like this, have impact on the using effect of brake system; Its end of the surrounding layer of existing braking string is not owing to having outer sleeve, and therefore braking string end-fitting part is is easily worn and torn, and have impact on the using effect of brake system; The end of the steel wire in existing braking string internal lining pipe be a hook for fixed handle, after service time is longer, hook can be out of shape, and braking string and handle so can be caused to throw off, thus brake failure, is prone to accidents.

Existing braking string long term exposure in the environment, can cause its surface oxidized, thus it is blunt, delayed that braking string is braked, and has potential safety hazard.

Summary of the invention

The object of the invention is to overcome above-mentioned deficiency, provide a kind of anti-oxidant braking string, this braking string braking string body can automatic retracted, is convenient to vehicle folding; Groups of metal filaments comprises many one metal wires, and wire is axially helical pattern, and groups of metal filaments intensity is high, not fragile; And outer sleeve energy available protecting braking string end-fitting part wears, and ensure that traffic safety; And braking string can be effectively anti-oxidant, therefore available protecting braking string body, ensure that the normal use of braking string.

The object of the present invention is achieved like this:

A kind of anti-oxidant braking string, be characterized in: described braking string comprises braking string body and steel wire, described braking string body comprises internal lining pipe and surrounding layer, internal lining pipe is arranged in surrounding layer, surrounding layer is spring curve shape at length direction, described groups of metal filaments is arranged in internal lining pipe, groups of metal filaments comprises many one metal wires, length direction wiry is axial consistent with internal lining pipe, and many one metal wires are upper along its length to be bent twist, one end of described outer sleeve is arranged on outside surrounding layer, the other end stretches out vertically and is arranged on steel wire, the end of described groups of metal filaments is provided with endless belt, described braking string body surface has been coated with oxidation resistant coating, described oxidation resistant coating comprises the chromium of 11-14wt%, the cobalt of 11-14wt%, the aluminium of 7.5-9.5wt%, the yttrium of 0.20-0.60wt%, the hafnium of 0.10-0.50wt%, the silicon of 0.10-0.30wt%, the zirconium of 0.10-0.20wt%, and the nickel of surplus.

A kind of anti-oxidant braking string of the present invention, its groups of metal filaments has 15 ~ 25 one metal wires.

Compared with prior art, the invention has the beneficial effects as follows:

A kind of anti-oxidant braking string of the present invention, this braking string braking string body can automatic retracted, is convenient to vehicle folding; Groups of metal filaments comprises many one metal wires, and wire is axially helical pattern, and groups of metal filaments intensity is high, not fragile; And outer sleeve energy available protecting braking string end-fitting part wears; Groups of metal filaments end is provided with an endless belt, fixes with handle, and therefore braking string can not be thrown off with handle, ensure that traffic safety; Braking string body surface is coated with antioxidant layer, and therefore available protecting braking string body, ensure that the normal use of braking string.

Accompanying drawing explanation

Fig. 1 is the structural representation of a kind of anti-oxidant braking string of the present invention.

Fig. 2 is the structural representation of groups of metal filaments of the present invention.

Fig. 3 is the schematic diagram of the end of groups of metal filaments of the present invention.

In figure:

Braking string body 1,

Internal lining pipe 1.1,

Surrounding layer 1.2,

Groups of metal filaments 2,

Outer sleeve 3,

Endless belt 4.

Embodiment

See Fig. 1-2, the present invention relates to a kind of anti-oxidant braking string, it comprises braking string body 1, groups of metal filaments 2 and outer sleeve 3, described braking string body comprises internal lining pipe 1.1 and surrounding layer 1.2, and internal lining pipe 1.1 is arranged in surrounding layer 1.2, and surrounding layer 1.2 is spring curve shape at length direction, under folded bicycle normal operating condition, braking string body keeps stretching using state normally, and under folded bicycle folds and packs up situation, braking string body automatic retracted is spring-like.

One end of described outer sleeve 3 is arranged on surrounding layer 1.2, and the other end axially stretches out along surrounding layer 1.2 and is arranged in groups of metal filaments 2.

Described groups of metal filaments 2 is arranged in internal lining pipe 1.1, and groups of metal filaments 2 comprises many one metal wires, length direction wiry is axial consistent with internal lining pipe 1.1, and many one metal wires along its length upper bending (are similar to the wire rope that twisting is shaping) twist, described groups of metal filaments 2 has 15 ~ 25 one metal wires, and optimum is 21.

The surface of described braking string body 1 is coated with oxidation resistant coating, and described oxidation resistant coating comprises the nickel of the chromium of 11-14wt%, the cobalt of 11-14wt%, the aluminium of 7.5-9.5wt%, the yttrium of 0.20-0.60wt%, the hafnium of 0.10-0.50wt%, the silicon of 0.10-0.30wt%, the zirconium of 0.10-0.20wt% and surplus.Can find out from above-mentioned composition, it has the aluminium content of reduction, and this decreases the formation of SRZ in the alloy being easy to formation SRZ.

In oxidation resistant coating, more aluminium may produce reaction zone problem, and less aluminium can not provide enough aluminium to maintain good protection class.Less active element (Y, Hf, Si and Zr) may improve oxidation kinetics, and more active element may cause short circuit to be oxidized.More chromium may reduce leading phase, γ phase (gamma prime), and less chromium may damage corrosion and heat resistant.Composition for the extremely suitable of oxidation resistant coating is positioned in the middle of above-mentioned scope just.

See Fig. 3, the end of described groups of metal filaments 2 is provided with endless belt 4.

Claims (2)

1. an anti-oxidant braking string, it is characterized in that: described braking string comprises braking string body (1), groups of metal filaments (2) and outer sleeve (3), described braking string body comprises internal lining pipe (1.1) and surrounding layer (1.2), internal lining pipe (1.1) is arranged in surrounding layer (1.2), surrounding layer (1.2) is spring curve shape at length direction, described groups of metal filaments (2) is arranged in internal lining pipe (1.1), groups of metal filaments (2) comprises many one metal wires, length direction wiry is axial consistent with internal lining pipe (1.1), and many one metal wires are upper along its length to be bent twist, one end of described outer sleeve (3) is arranged on surrounding layer (1.2), the other end axially stretches out along surrounding layer (1.2) and is arranged in groups of metal filaments (2), the end of described groups of metal filaments (2) is provided with endless belt (4), described braking string body (1) surface is coated with oxidation resistant coating, described oxidation resistant coating comprises the chromium of 11-14wt%, the cobalt of 11-14wt%, the aluminium of 7.5-9.5wt%, the yttrium of 0.20-0.60wt%, the hafnium of 0.10-0.50wt%, the silicon of 0.10-0.30wt%, the zirconium of 0.10-0.20wt%, and the nickel of surplus.

2. the anti-oxidant braking string of one according to claim 1, is characterized in that: described groups of metal filaments (2) has 15 ~ 25 one metal wires.