CN201647039U

CN201647039U - Four-pistons braking oil hydraulic brake for bicycle

Info

Publication number: CN201647039U
Application number: CN2009202673157U
Authority: CN
Inventors: 万丰州
Original assignee: WANWEI INDUSTRY Co Ltd
Current assignee: WANWEI INDUSTRY Co Ltd
Priority date: 2009-10-22
Filing date: 2009-10-22
Publication date: 2010-11-24
Anticipated expiration: 2019-10-22

Abstract

The utility model discloses a four-pistons braking oil hydraulic brake for bicycle, which mainly comprises a oil hydraulic cylinder body and a lining piece. Wherein both sides of the oil hydraulic cylinder body are respectively provided with two groups of pistons; an oil pressure inlet is disposed on one side of the body; an accommodating space, a first piston groove and a second piston groove; the lining piece structure is disposed in the accommodating space in the oil hydraulic cylinder body, it comprises two groups of lining pieces corresponding to each other, a spring component and a fixing bolt; every group of lining pieces is provided with a braking component on the corresponding side; the braking component has a plurality of slots; the spring component is disposed between the two groups of lining pieces; and the fixing bolt is used for assembling the lining pieces and the spring component into an integral body.

Description

Bicycle four piston deceleration oil pressure brakes voluntarily

Technical field

The utility model relates to a kind of four piston deceleration oil pressure brakes of bicycle voluntarily, the both sides that are particularly related to its oil hydraulic cylinder body are equiped with two groups of pistons respectively, and the Lining structure comprises the four piston deceleration oil pressure brakes of bicycle voluntarily of two corresponding Linings, a spring assembly and a gim peg.

Background technology

See also Taiwan notification number 150632 novel patent cases " the oil pressure brake structure-improved of drum drive " to call known structure in the following text, known structure mainly comprises a master cylinder brake Pu and a dishful of formula brake, wherein, known structure as shown in the figure 2, this disc type brake is single piston structure, be provided with two Linings in the oil hydraulic cylinder main body, the opposite side of this two Lining is provided with brake shoe.

Yet known structure has following shortcoming:

One, the disc type brake of known structure is single piston structure, and the brake braking force is obviously not enough.

Two, the assembly of any auxiliary playback is not set between two Linings, make the brake release after, the playback speed of Lining and piston is not good.

Three, the brake shoe on the Lining is not provided with groove, and dirty, foreign matter in the disc type brake can't be discharged fast, and the influence of the effect of being expanded with heat and contract with cold easily and cause distortion.

In view of this, the contriver is at studying improvement in this respect, and generation of the present utility model is arranged.

The utility model content

The utility model is a kind of four piston deceleration oil pressure brakes of bicycle voluntarily, comprise the oil hydraulic cylinder body, the Lining structure, wherein, the both sides of this oil hydraulic cylinder body are respectively equipped with two groups of pistons, then be provided with oil pressure inlet in side, inside then is provided with accommodation space, piston groove one and piston groove two, this Lining structure is installed in the accommodation space of oil hydraulic cylinder body interior, it comprises two corresponding Linings, one spring assembly and a gim peg, each is provided with the brake assembly in a corresponding side described two Linings, this brake assembly has the many places groove, spring assembly then is installed between two Linings, and this gim peg is used for Lining and spring assembly are assembled into one.

Description of drawings

Fig. 1 is a block diagram of the present utility model;

Fig. 2 is oil hydraulic cylinder body of the present utility model and Lining STRUCTURE DECOMPOSITION figure;

Fig. 3 is Lining STRUCTURE DECOMPOSITION figure of the present utility model;

Fig. 4 is a back of the present utility model pseudosection;

Fig. 5 is a top plan view of the present utility model;

Fig. 6 is installed in the scheme drawing of disc for the utility model.

The primary clustering nomenclature

10---the oil hydraulic cylinder body

11---piston

12---the oil pressure inlet

13---accommodation space

14---piston groove one

15---piston groove two

16---O type ring

17---fixing blind nut

20---the Lining structure

21---Lining

211---the brake assembly

212---groove

213---perforation

22---spring assembly

221---perforation

23---gim peg

30---disc

The specific embodiment

See also Fig. 1 to Fig. 6, the utility model is a kind of four piston deceleration oil pressure brakes of bicycle voluntarily, mainly by oil hydraulic cylinder body 10, Lining structure 20 is formed, wherein, the both sides of this oil hydraulic cylinder body 10 are respectively equipped with two groups of pistons 11, then be provided with oil pressure inlet 12 at side, the central interior of described oil hydraulic cylinder body 10 has an accommodation space 13, be respectively equipped with two piston grooves 1 and piston groove 2 15 that hold piston 11 in inner both sides, this piston groove 1 outwards runs through oil hydraulic cylinder body 10 fully from accommodation space 13, and piston groove 2 15 does not run through fully, only has the degree of depth that just can hold piston 11.

See also Fig. 3, this Lining structure 20 is installed in oil hydraulic cylinder body 10 inner accommodation spaces 13, described Lining structure 20 comprises two corresponding Linings 21, one spring assembly 22 and a gim peg 23, wherein, these Lining 21 surfaces are provided with a perforation 213, and two Linings 21 respectively are provided with brake assembly 211 in a corresponding side, this brake assembly 211 has many places groove 212, and spring assembly 22 is installed between two Linings 21, described spring assembly 22 has two corresponding perforation 221, this gim peg 23 passes the perforation 213 of two Linings 21 and the perforation 221 of spring assembly 22, and two Linings 21 are assembled into one with spring assembly 22.

See also Fig. 3, first pair of piston 11 gone in the piston groove 2 15 via accommodation space 13 installings, in the future make chip architecture 20 be installed in the accommodation space 13 more afterwards, at last second pair of piston 11 installing is gone in the piston groove 1, and with O type ring 16 and fixing blind nut 17 seal piston groove 1 to exterior notch.

When the oil pressure inlet 12 from oil hydraulic cylinder body 10 injects oil pressure, Lining structure 20 is inwardly oppressed in totally four groups the piston 11 in forward and backward both sides, this moments two, Lining 21 was inwardly near also clamping the disc 30 that makes brake assembly 211 be close to bicycle, reach the brake purpose, and when oil pressure is decorporated, spring assembly 22 between two Linings 21 fast to extrapolation, makes Lining 21 and piston 11 can return to original position fast after the brake action in two Linings, 21 related pistons 11.

The utlity model has following advantage:

One, the forward and backward both sides of the utility model institute tool oil hydraulic cylinder body 10 are respectively equipped with two groups of pistons 11, by altogether four groups piston 11 effects, the inner clip power of lining 21 are increased, and improve simultaneously the brake coefficient of friction.

Two, the brake assembly 211 of the utility model institute tool Lining 21 is provided with many places groove 212, and the effect that can prevent to expand with heat and contract with cold causes the assembly distortion, and makes various foreign matters, dirty can the discharge by groove 212.

Three, in the utility model, set spring assembly 22 can playback Lining 21 and piston 11 after the brake release fast between two Linings 21, strengthens the power of brake.

Claims

1. bicycle four piston deceleration oil pressure brakes voluntarily, it is characterized in that, comprise oil hydraulic cylinder body, Lining structure, wherein, the both sides of this oil hydraulic cylinder body are respectively equipped with two groups of pistons, then be provided with oil pressure inlet at side, the central interior of described oil hydraulic cylinder body has an accommodation space, be respectively equipped with two piston grooves one and two piston grooves two that hold piston in inner both sides, this Lining structure is installed in the accommodation space of oil hydraulic cylinder body interior, and described Lining structure comprises two corresponding Linings, a spring assembly and a gim peg.

2. the four piston deceleration oil pressure brakes of bicycle voluntarily as claimed in claim 1 it is characterized in that this piston groove one outwards runs through the oil hydraulic cylinder body fully from accommodation space, and piston groove two run through fully not, only has the degree of depth that just can hold piston

3. the four piston deceleration oil pressure brakes of bicycle voluntarily as claimed in claim 1 is characterized in that two Linings respectively are provided with the brake assembly in a corresponding side, and this brake assembly has the many places groove, and the surface of described two Linings respectively is provided with a perforation.

4. the four piston deceleration oil pressure brakes of bicycle voluntarily as claimed in claim 1 is characterized in that spring assembly is installed between two Linings, and described spring assembly has two corresponding perforation.

5. the four piston deceleration oil pressure brakes of bicycle voluntarily as claimed in claim 1 is characterized in that, gim peg passes the perforation of the perforation of two Linings and spring assembly and two Linings and spring assembly are assembled into one.