CN202176638U

CN202176638U - Bicycle disc brake with clamped double faces

Info

Publication number: CN202176638U
Application number: CN201120242634XU
Authority: CN
Inventors: 张小红
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-07-11
Filing date: 2011-07-11
Publication date: 2012-03-28
Anticipated expiration: 2021-07-11

Abstract

The utility model discloses a bicycle disc brake with clamped double faces, wherein blind holes are drilled at the side of an upper ejector rod (3); pins (5) are arranged in the blind holes; idler wheels or bearings (6) are sleeved on the pins (5); the two ends of a bracket (9) are respectively provided with waist-like through holes while the bottom is provided with an inclined surface corresponding to the idler wheels or bearings (6); a penetrating groove is arranged on a big nipper body (8); the bracket (9) is arranged in the groove to slide and displace insides and outsides; when the upper ejector rod (3) rotates, steel balls (4) in the top popping groove (17) of the upper ejector rod (3) and the idler wheels or bearings (6) at the side roll simultaneously; the steel balls (4) push the friction sheets of the big nipper body to press the disc; the idler wheels or bearings (6) at the side push the bracket (9) to act; and when the ascending distance of the steel balls (4) in the top popping groove (17) of the upper ejector rod (3) is twice of that of the idler wheels or bearings (6), the bicycle disc brake with clamped double faces can clamp simultaneously in constant speed and equal distance.

Description

The two-sided clip disc brake of always driving a vehicle

Technical field

The utility model relates to the important spare part of bicycle, electric bicycle, the mechanical two-sided clip of the specifically a kind of backguy disc brake of always driving a vehicle.

Background technique

Bicycle and electric bicycle are the huge traffic of whole world owning amount, ride instead of walk and fitness tool, and in order to control and regulate gait of march and braking, brake is indispensable parts.What bicycle commonly used at present, electric bicycle braked usefulness is the mechanical pulling brake, generally uses the disc brake of unidirectional clamping type, and the small forceps body friction plate of the disc brake of unidirectional clamping type is fixed, leans on the monolateral extruding disc of big caliper friction plate to brake.This disc brake is regulated difficulty when mounted, and trouble is installed, and disc is monolateral stressed during braking, and is yielding, influences braking effect.And the hydraulic type disc brake is two-sided clamping brake, and is effective, be prone to install, but required precision is high, and manufacture cost is high, easy oil leakage in the use, maintenance difficult.

The model utility content

The utility model two-sided clip disc brake purpose of always driving a vehicle is to provide a kind of two-sided clamping, and is easy for installation, the boom guy type two-sided clip disc brake of always driving a vehicle, it can be accomplished constant speed, equidistance and clamp simultaneously.

The technological scheme that realizes the utility model is such: this two-sided clip disc brake of always driving a vehicle; Comprise big caliper, little caliper, support, upper ejector pin, lower push rod, the friction plate of being located at the jaw both sides, disc and cover plate; Big caliper, little caliper are fixed through bolt and nut, and the friction plate on the little caliper is fixed with respect to little caliper.The side of upper ejector pin is drilled with blind hole, inserts pin in the blind hole, is with roller or bearing on the pin; Respectively there is a kidney shape through hole at the two ends of support, and the inclined-plane corresponding with roller or bearing arranged at the bottom; Have one to run through groove on the big caliper, support is inserted in this groove, can pass in and out slide displacement; There is mounting hole at the edge of cover plate, is fixed on the big caliper through screw.When pull bar drives the upper ejector pin rotation; The steel ball in the top bullet groove of upper ejector pin and the roller or the bearing of side roll simultaneously; Steel ball promotes big caliper friction plate and presses to disc; The roller of side or bearing promote the support action, and when steel ball climb in the bullet groove of upper ejector pin top was 2 times of the climb of roller or bearing, the utility model can be accomplished constant speed, equidistance and clamp simultaneously.The essence of the utility model is exactly that the disc brake of a unidirectional clamping type adds a servo-actuated auxiliary conditioning unit, and the corresponding inclined-plane of the roller of upper ejector pin side or bearing and frame bottom has played regulating action.

The beneficial effect of the utility model is; With respect to the disc brake of present widely used unidirectional clamping type, the problem that it has solved constant speed, equidistance and has clamped is simultaneously installed conveniently more a lot than the disc brake of present widely used unidirectional clamping type; After can stopping disc tightly during installation; Screw on the fixed support is decontroled brake lever then again, and disc is located in the neutral position naturally.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is done further explain.

Fig. 1 is always the drive a vehicle sectional structural map of an embodiment of disc brake of the utility model two-sided clip.Fig. 2 is always drive a vehicle several parts of disc brake of the utility model two-sided clip, the three-dimensional explosive view of the correlation of upper ejector pin, pin, roller, steel ball, lower push rod and support.

Fig. 3 is always drive a vehicle several parts of disc brake of the utility model two-sided clip, the solid blast side view of the correlation of upper ejector pin, pin, roller, steel ball, lower push rod and support.

Fig. 4 is always drive a vehicle four parts of disc brake of the utility model two-sided clip, the stereogram of big caliper, support, cover plate and screw correlation.

Embodiment

Below in conjunction with implementing the utility model two-sided clip disc brake of always driving a vehicle is described further.

Shown in Fig. 1, be the two-sided clip disc brake sectional structural map of always driving a vehicle.For narrating conveniently, hereinafter is alleged " left side ", " right side is " consistent with the left and right directions of accompanying drawing itself.When the brake lever of holding with a firm grip drove pull bar 1 rotation, pull bar 1 drove upper ejector pin 3 and rotates, and along with the rotation of upper ejector pin 3, roller or bearing 6 rotate, and steel ball 4 rotates in playing groove 17 simultaneously.Big relatively caliper 8 is a benchmark; Three rollers or bearing 6 advance support 9 through the inclined-plane of support 9 bottoms to figure the right; Three steel balls 4 advance lower push rod 7 and big caliper friction plate 11 to figure the right, in design, the displacement of lower push rod 7 and the displacement amount of support 9 were designed to 2: 1, and purpose is in order to reach: with respect to big caliper 8; Support 91 unit distance that moves right, and simultaneously big caliper friction plate 11 2 unit distances that move right.When being benchmark with support 9 equally; When upper ejector pin 3 rotates; Big caliper 8 is fixed as one with small forceps body 10, and the two just moves left a unit distance to figure, also is that small forceps body friction plate 12 moves left a unit distance to figure; Simultaneously big 9 on the then relative support of caliper friction plate 11 unit distance that moves right has so just reached constant speed, equidistance and has clamped simultaneously.With disc 15 be reference level to come the inference result be the same because the spacing of disc 15 and support 9 is changeless.Steel ball 4, roller or bearing 6 directly produce two kinds of different displacement.

Pull bar fastening screw trip bolt 2 is fixed in pull bar 1 on the upper ejector pin 3; Main spring 13 is Returnning springs of lower push rod 7, and auxilliary spring 14 is Returnning springs of support 9; Cover plate 16 is to play to push down main spring 13 and auxilliary spring 14, plays the effect that fixing lower push rod 7 moving direction prevent its rotation simultaneously; Pin 5 is drive fits with upper ejector pin 3, and roller or bearing 6 rotate around pin 5.

Shown in Fig. 2 and Fig. 3, be always the drive a vehicle three-dimensional explosive view of correlation of several parts of disc brake of the utility model two-sided clip.There is the bullet groove 17 of inclination on upper ejector pin 3 tops; The side of upper ejector pin 3 is drilled with blind hole, inserts pin 5 in the blind hole, is with roller or bearing 6 on the pin 5; Respectively there is a kidney shape through hole at the two ends of support 9; The inclined-plane corresponding with roller or bearing 6 arranged at the bottom, and the centre of support 9 is one and runs through through hole have a circle that the step of assisting spring 14 is installed on this hole inwall.

Shown in Fig. 4, be the stereogram of big caliper 8, support 9, cover plate 16 and screw 18 relativenesses.Have one to run through groove on the big caliper 8, support 9 is inserted in this groove, can pass in and out slide displacement, and there is mounting hole at the edge of cover plate 16, is fixed on the big caliper 8 through screw 18.The groove depth that runs through groove of big caliper 8 leaves the slip surplus of support 9 turnover 0.5-5 millimeters.

Claims

1. two-sided clip disc brake of always driving a vehicle comprises big caliper, little caliper, support, upper ejector pin, lower push rod, the friction plate of being located at the jaw both sides, disc and cover plate, and big caliper, little caliper are fixed through bolt and nut; It is characterized in that: the side of described upper ejector pin (3) is drilled with blind hole; Insert pin (5) in the blind hole, be with roller or bearing (6) on the pin (5), respectively there is a kidney shape through hole at the two ends of described support (9); The bottom has and roller or the corresponding inclined-plane of bearing (6); Have one to run through groove on the described big caliper (8), support (9) is inserted in this groove, can pass in and out slide displacement; There is mounting hole at the edge of described cover plate (16), is fixed on the big caliper (8) through screw (18).

2. the two-sided clip according to claim 1 disc brake of always driving a vehicle, it is characterized in that: there is the bullet groove (17) of inclination on described upper ejector pin (3) top.

3. the two-sided clip according to claim 1 disc brake of always driving a vehicle is characterized in that: the centre of described support (9) is one and runs through through hole have a circle that the step of auxilliary spring (14) is installed on this hole inwall.

4. the two-sided clip according to claim 1 disc brake of always driving a vehicle is characterized in that: the groove depth that runs through groove of described big caliper (8) leaves the slip surplus of support (9) turnover 0.5-5 millimeter.