CN203047478U

CN203047478U - Double-faced disc brake

Info

Publication number: CN203047478U
Application number: CN 201220694787
Authority: CN
Inventors: 张小红
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-12-10
Filing date: 2012-12-10
Publication date: 2013-07-10
Anticipated expiration: 2022-12-10

Abstract

The utility model discloses a double-faced disc brake. The double-faced disc brake comprises a double-armed draw bar (1), a big clamp body (7), a small clamp body (2), a left ejector rod (3a), a right ejector rod (3), a left clamp spring (8a), a right clamp ring (8), a seal ring (11), a left ejector rod cover (2a), a left compensation screw (9a), and a right compensation screw (9), wherein the double-armed draw bar (1) has resetting elasticity, a gap is reserved between a left arm of the double-armed draw bar (1) and the big clamp body (7), a gap is reserved between a right arm of the double-armed draw bar (1) and the small clamp body (2), the gaps decrease correspondingly along the increase of a working rotating angle of the double-armed draw bar (1), the right ejector rod (3) and the small clamp body (2) compose a right bead disc driving structure, and the left ejector rod (3a) and the left ejector rod cover (2a) compose a left bead disc driving structure. Two faces of the double-faced disc brake can simultaneously act to clamp, and the double-faced disc brake is thin in body shape.

Description

Two-sided disc brake

Technical field

The utility model relates to the important spare part of bicycle, Electrical Bicycle, the mechanical two-sided clamping disc brake of a kind of backguy specifically.

Background technology

Bicycle and Electrical Bicycle are the huge traffic of whole world owning amount, ride instead of walk and fitness tool, and in order to regulate gait of march and braking, brake is indispensable parts.The bicycle of using always, Electrical Bicycle brake usefulness is the mechanical pulling brake at present, generally uses the disc brake of unidirectional clamped-in style, and the small forceps body friction lining of unidirectional clamped-in style disc brake is fixed, leans on the monolateral extruding disc of big caliper friction lining 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 fluid pressure type disc brake is two-sided clamping brake, and is effective, easily install, but the accuracy requirement height, the manufacturing cost height, easy oil leakage in the use, maintenance is difficulty.Its name of China utility model patent ZL201120242634.X is called: the two-sided clip disc brake of always driving a vehicle, openly provided a kind of two-sided bicycle mechanical disc brake that clamps of doing simultaneously, substantially solved the shortcoming of the mechanical disc brake of unidirectional clamped-in style, it is monolateral stressed to have overcome disc, yielding, influence the problem of braking effect, but this utility model patent has still adopted round-about way to reach the two-sided clamping of doing simultaneously, two actuating devices are contained in on one side, and the follow-up shift by the main body brake equipment reaches the two-sided clamping of doing simultaneously.The shortcoming of this method is as follows: two actuating devices are contained in on one side, and the volume on this limit is just higher with regard to height bigger than normal, is unfavorable for micro-miniaturisation and lightweight.

The utility model content

At the defective that above-mentioned prior art exists, the purpose of the two-sided disc brake of the utility model not only is to provide a kind of direct-type two-sided clamping, and two-sided doing simultaneously easy for installation clamps disc brake, and makes it comparatively slimming and lightweight.

Realize that the technical solution of the utility model is such: this is a kind of two-sided disc brake, comprise the both arms pull bar, big caliper, little caliper, left side push rod, right push rod, left side jump ring, right jump ring, seal ring, left side push rod lid, left side compensation screw and right compensation screw, its technical scheme is: two arms about described both arms pull bar has, about two arms under state of nature, outwards open and be non-parallel state, the both arms pull bar possesses Flexible Reset, between the left arm of both arms pull bar and the big caliper, the gap that 0.2mm to 4.5mm is arranged between right arm and the little caliper, this gap is along with the work rotational angle of both arms pull bar increases and corresponding reducing, and this gap is maximum under the original state that do not stress; Described right push rod and described small forceps body are formed the pearl dish drive configuration on the right, and described left push rod and left push rod lid are formed the pearl dish drive configuration on the left side; The distance that described left side compensation screw and right compensation screw are used for regulating left and right sides friction lining.The top of described both arms pull bar has one through hole or the screw hole of backguy are installed, can torsion spring be installed between both arms pull bar and the big caliper or reset response is played in extension spring, the left and right arms Pasting of both arms pull bar, parcel or clasping plastics, nylon, rubber or metal moulding piece are to beautify outward appearance.There is a through hole centre of described little caliper, and the spiral groove of 2 to 4 inclinations that distribute around the inboard around through hole is useful on the corner of little caliper and fixing through hole or the screw hole of big caliper.Described left push rod and right push rod are except the direction of tilt of the spiral groove that tilts is opposite, and remaining moulding is the same with structure.The fixing mode that adopts the right jump ring of left jump ring to block of the socket of described right push rod and left push rod and both arms pull bar perhaps adopts nut to fix, and the slit between described right push rod and the little caliper is protected by seal ring.

The wearing and tearing of friction compensation sheet can be adjusted in this two-sided disc brake both sides, and this two-sided disc brake can also can utilize the first transaction of a day's business elastic force of both arms pull bar itself just can reach the purpose that the both arms pull bar resets without retracing spring with retracing spring.The spiral groove that described small forceps body coils pearl the inclination of structure is directly accomplished on the common little caliper, described little caliper has just possessed the function of two parts, be about to push rod lid and common little caliper and unite two into one, adapted to the narrow space of bicycle disc inboard.

The beneficial effects of the utility model are, with respect to the two-sided clip of the present use disc brake of always driving a vehicle, reduce height and the volume of disc brake, have reduced about 20% through measuring average bottom-to-top-height, the corresponding raw MAT'L that reduced weight savings.

Description of drawings

Be description of drawings below:

Fig. 1 is the sectional structural map of a specific embodiment of the two-sided disc brake of the utility model, its be Fig. 3 A-A to section-drawing.

Fig. 2 is the sectional structural map of another angle of a specific embodiment of the two-sided disc brake of the utility model, its be Fig. 3 B-B to section-drawing.

Fig. 3 is the front elevation of the two-sided disc brake of the utility model.

Fig. 4 is the three-dimensional exploded view of the two-sided disc brake of the utility model.

Fig. 5 and Fig. 6 are that the both arms pull bar of the two-sided disc brake of the utility model is stuck, two views of parcel or clasping plastics, nylon, rubber or metal moulding piece.

Fig. 7 and Fig. 8 are the another kind of shape figure of the little caliper of the two-sided disc brake of the utility model.

The specific embodiment

The utility model is described in further detail below in conjunction with implementing.

Shown in Fig. 1, be the sectional structural map of a specific embodiment of the two-sided disc brake of the utility model, its be Fig. 3 A-A to section-drawing.For sake of convenience, hereinafter 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 drives 1 rotation of both arms pull bar, the right arm of both arms pull bar 1 drives right push rod 3 and rotates, right push rod 3 and small forceps body 2 are formed the pearl dish drive configuration on the right, rotation along with right push rod 3, right steel ball 4 rotates in the spiral groove that tilts, and just promotes right push rod 3, right movable push rod 5 and right friction lining 6 and advances to the left side; When the left arm of both arms pull bar 1 rotates simultaneously, left side push rod 3a and left push rod lid 2a form the pearl dish drive configuration on the left side, left side steel ball 4a rotates in the spiral groove that tilts, just promote left push rod 3a, left movable push rod 5a and left friction lining 6a and advance to the right, so just reached the two-sided clamping of doing simultaneously.The fixing mode that adopts the right jump ring 8 of left jump ring 8a to block of the socket of right push rod 3 and left push rod 3a and both arms pull bar 1, the slit between right push rod 3 and the small forceps body 2 is by seal ring 11 protection.Screw hole 10 fixedly backguy is used.Left side compensation screw 9a and right compensation screw 9 are to regulate right movable push rod 5 turnover of left movable push rod 5a, are used for regulating the distance between left friction lining 6a and the right friction lining 6.

Show among Fig. 2 and Fig. 3: big caliper 7 and small forceps body 2 are fixing by holding screw 13, and safety pin 12 is to be through in the aperture of left friction lining 6a and right friction lining 6.

Fig. 4 has clearly illustrated that the relation between each part.

These two views of Fig. 5 and Fig. 6 show, the left and right arms Pasting of both arms pull bar 1, parcel or clasping plastics, nylon, rubber or metal moulding piece are to beautify outward appearance, particularly the residing space of left arm is bigger, and the bigger leeway of beautifying moulding just can be arranged.

Fig. 7 and Fig. 8 are that little caliper can have different moulding to further the illustrating of small forceps body 2, but can find out that its main process is that whole the manufacturing forms.

The wearing and tearing of friction compensation sheet can be adjusted in this two-sided disc brake both sides, and this two-sided disc brake can save retracing spring in order to reduce height, utilize both arms pull bar 1 the first transaction of a day's business elastic force own to reach the purpose that both arms pull bar 1 resets.

Claims

1. two-sided disc brake, comprise both arms pull bar (1), big caliper (7), little caliper (2), left push rod (3a), right push rod (3), left jump ring (8a), right jump ring (8), seal ring (11), left push rod lid (2a), left side compensation screw (9a) and right compensation screw (9), it is characterized in that: two arms about described both arms pull bar (1) has, about two arms under state of nature, outwards open and be non-parallel state, both arms pull bar (1) possesses Flexible Reset; Between the left arm of both arms pull bar (1) and the big caliper (7), the gap of 0.2mm to 4.5mm is arranged between right arm and the little caliper (2), this gap is along with the work rotational angle of both arms pull bar (1) increases and corresponding reducing, and this gap is maximum under the original state that do not stress; Described right push rod (3) and described little caliper (2) are formed the pearl dish drive configuration on the right, and described left push rod (3a) and left push rod lid (2a) are formed the pearl dish drive configuration on the left side; The distance that described left side compensation screw (9a) and right compensation screw (9) are used for regulating left and right sides friction lining.

2. two-sided disc brake according to claim 1, it is characterized in that: the top of described both arms pull bar (1) has one through hole or the screw hole (10) of backguy are installed, installation torsion spring or extension spring reach reset response between both arms pull bar (1) and the big caliper (7), and both arms pull bar (1) left and right arms stickup, parcel or clasping plastics, nylon, rubber or metal moulding piece are to beautify outward appearance.

3. two-sided disc brake according to claim 1, it is characterized in that: there is a through hole centre of described little caliper (2), around the spiral groove of 2 to 4 inclinations that distribute around the inboard of through hole, be useful on the corner of little caliper (2) and fixing through hole or the screw hole of big caliper (7).

4. two-sided disc brake according to claim 1 is characterized in that: described left push rod (3a) and right push rod (3) are except the direction of tilt of the spiral groove that tilts is opposite, and remaining moulding is the same with structure.

5. two-sided disc brake according to claim 1, it is characterized in that: described right push rod (3) and left push rod (3a) and the fixing mode that adopts the right jump ring of left jump ring (8a) (8) to block of the socket of both arms pull bar (1), perhaps adopt nut to fix, the slit between described right push rod (3) and the little caliper (2) is protected by seal ring (11).