CN201143976Y

CN201143976Y - Bicycle disc brake

Info

Publication number: CN201143976Y
Application number: CNU2007201119795U
Authority: CN
Inventors: 翁华英
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-08-23
Filing date: 2007-08-23
Publication date: 2008-11-05
Anticipated expiration: 2017-08-23

Abstract

The utility model relates to a mechanical brake disc for bicycle, which comprises a large caliper, a small caliper, a basal plate and a friction plate positioned at two sides of the caliper opening, a brake disc clamped between two friction plate and a jacking mechanism that consists of a hinge support shaft, a jacking element, a return spring and a stayguy inside the large caliper body. The jacking element is hinged on the large caliper body via the hinge support shaft; the jacking element rotates around the hinge support shaft; the arc top of the jacking element props up to the basal plate of the friction plate; the stayguy is connected at the end on the middle section of a long handle; the stayguy passes a through hole on a hollow cavity wall and exposes out of the large caliper body; the two ends of the return spring are respectively connected with the hollow cavity wall and the long handle section of the jacking element. Therefore, the design of the utility model not only simplifies the structure, but also improves the transmission effect of stayguy force, reduces the working processes, speeds up the transfer, ensures better reliability and longer service life. Therefore, the utility model has the advantages of simple design, easy processing and excellent effect.

Description

Bicycle dished brake

Technical field

The utility model relates to the parts of bicycle, specifically a kind of mechanical Bicycle dished brake.

Background technology

Bicycle and Electrical Bicycle are the traffic means of transport of China's owning amount maximum, and in order easily to control and to regulate the speed of advancing and promptly realizing stopping, one of the parts that are absolutely necessary brake.Past brake commonly used is with the brake backguy, the drag friction piece is pressed to the pull clamp structure of wheel rim, when the steel ring invar silk of bicycle is adjusted when unbalanced, two lateral surfaces can swing when rolling, and cause the applying of friction shoe and wheel rim intermittent, promptly produce and skid, braking effect is descended.The brake of this type of form is at present substituted by a kind of more failure-free disc brake just gradually, its version is to consist predominantly of a brake disc and the disc brake body that is fixedly connected on the vehicle frame that is fixed on the wheel, in the disc brake body, be provided with one can ccontaining brake disc opening, be equipped with bremsbelage respectively in two side through hole of this opening, wherein the bremsbelage of a side also is connected with a bremsbelage penetrating mechanism that is contained in the brake body through-holes, this penetrating mechanism is by by upper ejector pin, lower push rod, the pushing and pressing pearl, be sleeved on that returning spring spring check screw and bearing on the upper ejector pin constituted, its upper ejector pin is placed in the bearing, be to be clipped in successively, pushing and pressing pearl between lower push rod, lower push rod, the lower push rod overcoat reinstalls multiple spring, returning spring is lived in the clinching of spring check screw, the fixed arm of body should be held the upper ejector pin bonded assembly in end face movable arm and the through hole, when movable arm is scratched commentaries on classics by the backguy pulling, penetrating mechanism can be with the friction lining ejection to brake disc, to reach the purpose of deceleration.This disc brake, structure are comparatively complicated, and difficulty of processing is big.

The utility model content

The purpose of this utility model be to provide a kind of simple in structure, use more failure-free Bicycle dished brake.

The concrete structure of realizing the technical solution of the utility model is such: it comprises big caliper, little caliper, be located at the substrate and the friction lining of jaw both sides, be installed in the middle brake disc of two friction linings, on big caliper, be provided with the cavity that is used for ccontaining top-pressure mechanism that opening is positioned at the jaw sidewall, the opening part of this cavity is fitted with the substrate that is connecting friction lining, by hinging supporting shaft, supporting member, pull back spring, backguy is formed top-pressure mechanism and is located in the cavity, supporting member is similar to " 7 " font, on the corner the middle part is hinged on the big caliper by hinging supporting shaft, supporting member rotates around hinging supporting shaft, its top is the subsides that offset of the substrate of circular arc and friction lining, the center end of long handle is connected with backguy, through hole on the cavity wall is passed in this backguy, and to be exposed to tong external, and pull back spring two ends branch is connected with the long handle section of cavity wall and supporting member; Replacing bar in addition can parallelly be provided with more than two or two side by side; Supporting a bar contact friction plate base position, roller or miniature bearing also can be housed.

Bicycle dished brake of the present utility model, the friction lining base plate strip friction lining that directly pushes against brake with the supporting member that rotates around hinging supporting shaft clamps brake disc, with separating of pull back spring control friction lining and brake disc, having substituted ccontaining in the movable arm that pivoted by body relatively and the body is by upper ejector pin, lower push rod, the pushing and pressing pearl, be sleeved on the returning spring on the upper ejector pin, the top-pressure mechanism that spring check screw and bearing are constituted, not only simplify the structure greatly, and improved the transmission effect of backguy power, reduced link, improved transmission speed, better and the longer service life of the fiduciary level of its use, it is simple to have conception, handling ease, good effectiveness.

Description of drawings

Fig. 1 is the Bicycle dished brake structural representation of the utility model embodiment

Fig. 2 is the Bicycle dished brake supporting member friction of rolling scheme drawing of the utility model embodiment

The specific embodiment

Below in conjunction with embodiment the utility model is further described, following each embodiment only is used to illustrate the technical solution of the utility model, but to not restriction of the utility model.

Embodiment one

As shown in fig. 1, Bicycle dished brake of the present utility model comprises following parts: big caliper 1, small forceps body 2, the substrate 4a, the 4b that are located at jaw 3 both sides and friction lining 5a, 5b, be installed in the middle brake disc 6 of two friction lining 5a, 5b, be positioned at the cavity 1b that is used for ccontaining top-pressure mechanism 7 of jaw sidewall with the opening 1a that on big caliper 1, is provided with, the opening part of this cavity 1b is fitted with the substrate 4b that is connecting friction lining, forms top-pressure mechanism 7 by hinging supporting shaft 71, supporting member 72, pull back spring 73a, 73b, backguy 74 and is located in the cavity 1b.By finding out shown in the figure, supporting member 72 has two or also more than two, be arranged in parallel side by side, its profile is similar to horizontal " 7 " font, the corner that fore half moon engages with the rectangular section at rear portion, be selected in the middle part be provided with by hinging supporting shaft be hinged on big caliper 1 on, supporting member 72 is around hinging supporting shaft 71 rotations, its top is the substrate 4b of circular arc and the friction lining 5b subsides that offset, the center end of rectangle long handle section is connected with backguy 74, the through hole 1c that this backguy 74 is passed on the cavity wall is exposed to outside the big caliper 1 pull back spring 73a, 73b two ends branch is connected with the long handle section of cavity wall and supporting member 72.

During use, be that brake disc is fixed on the wheel, the brake body is promptly by being connected on the frame-front fork that big or small caliper and top-pressure mechanism etc. constitute, adjust the parallelism of brake disc and bremsbelage 5, brake backguy 74 in the connection, tension backguy supporting member 72 is around hinging supporting shaft 71 rotations, and supporting member 72 anterior evagination positions push friction lining substrate and friction lining in the lump similar in appearance to eccentric wheel and stick brake disc, from DMJ it are braked.

Certainly by among Fig. 2 as can be known, in order to reduce the friction force of supporting member 72 and rubbed substrate, the zone that contacts with rubbed substrate in the front portion of supporting member 72 can be provided with miniature bearing or roller 72a, its cliding friction is changed into the structure of friction of rolling.

Claims

1, a kind of Bicycle dished brake, it comprises big caliper, little caliper, be located at the substrate and the friction lining of jaw both sides, be installed in the middle brake disc of two friction linings, it is characterized in that: described big caliper is provided with the cavity that opening is positioned at the ccontaining top-pressure mechanism of jaw sidewall, the opening part of this cavity is fitted with the substrate that is connecting friction lining, by hinging supporting shaft, supporting member, pull back spring, backguy is formed top-pressure mechanism and is located in the cavity, supporting member is similar to " 7 " font, on the corner the middle part is hinged on the big caliper by hinging supporting shaft, supporting member rotates around hinging supporting shaft, its top is the subsides that offset of the substrate of circular arc and friction lining, the center end of long handle is connected with backguy, through hole on the cavity wall is passed in this backguy, and to be exposed to tong external, and pull back spring two ends branch is connected with the long handle section of cavity wall and supporting member.

2, Bicycle dished brake as claimed in claim 1 is characterized in that: the described bar of replacing is established parallel being provided with side by side more than two or two.

3, Bicycle dished brake as claimed in claim 1 or 2 is characterized in that: replace bar contact friction plate base position, roller or miniature bearing are housed.