CN104373490A - Bicycle hydraulic brake - Google Patents
Bicycle hydraulic brake Download PDFInfo
- Publication number
- CN104373490A CN104373490A CN201410550623.6A CN201410550623A CN104373490A CN 104373490 A CN104373490 A CN 104373490A CN 201410550623 A CN201410550623 A CN 201410550623A CN 104373490 A CN104373490 A CN 104373490A
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- brake
- hole
- piston
- parking
- oil
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Abstract
The invention relates to the field of brakes, and aims at providing a bicycle hydraulic brake. The bicycle hydraulic brake comprises a brake pump assembly, a brake caliper assembly and a connecting oil pipe. The brake caliper assembly comprises a shell, two caliper bodies, two pressing plates, two brake sheets, a U-shaped reed, a guide rod and a shaft elastic check ring, wherein the shell is connected with a bicycle body, two oil cylinder holes and two brake pistons located in the oil cylinder holes are arranged on the opposite end faces of the caliper bodies respectively, the caliper bodies are connected with the shell, the two pressing plates are located in the brake pistons respectively, guiding holes are formed in one ends of the pressing plates, the two brake sheets are connected with the inner sides of the pressing plates respectively, two through holes are formed in the two side edges of the U-shaped reed, the two ends of the U-shaped reed are connected with one ends of the brake sheets respectively, a stop block is arranged at one end of the guide rod, a clamping groove is formed in the other end of the guide rod, the guide rod penetrates through the two caliper bodies, the two guiding holes and the two through holes, the shaft elastic check ring is clamped in the clamping groove to be fixed, and oil inlet holes communicated with the two oil cylinder holes respectively are formed in the outer sides of the caliper bodies. According to the bicycle hydraulic brake, the two brake pistons of the brake caliper assembly push the corresponding brake sheets through the pressing plates respectively to perform braking, the braking force on the two sides of a rim is balanced, and the abrasion of the two brake sheets is even.
Description
Technical field
The present invention relates to brake field, especially a kind of hydraulic brake for bicycle.
Background technique
Chinese Patent Application No.: a kind of Hydraulic rim brake of the disclosure of the invention of 201210443864.1; The Rim brake of hydraulic actuating has a pair brake arm, and these two brake arms can rotate around common axis, and described common axis is the axis this assembly being installed to the single bolt on bicycle; This system has a piston, and described piston is slidably arranged in the cylindrical shell of piston.This Hydraulic rim brake exists when the thickness position that is different or wheel rim of wheel rim offsets, and unbalanced and two braking plates of the braking force of a pair brake arm to wheel rim both sides wear and tear uneven deficiency; Therefore, design the hydraulic brake for bicycle of the equilibrium of a kind of braking force to wheel rim both sides and two braking plate even wearings, become problem demanding prompt solution.
Summary of the invention
The object of the invention is to exist when the thickness position that is different or wheel rim of wheel rim offsets to overcome current Hydraulic rim brake, balanced and two braking plates wear and tear uneven deficiency to the braking force of wheel rim both sides for a pair brake arm, provide the hydraulic brake for bicycle of balanced and two the braking plate even wearings of a kind of braking force to wheel rim both sides.
Concrete technological scheme of the present invention is:
A kind of hydraulic brake for bicycle, comprises brake pump assembly, brake caliper assy, connected pipes; Described brake caliper assy comprises the housing be connected with frame, two opposing end surfaces are respectively provided with an oil har opening and are arranged in the brake piston of oil har opening and the caliper be connected with housing, two are each positioned at the pressing plate that inside a brake piston and one end is provided with guide hole, two respectively with the braking plate be connected inside a pressing plate, dual-side is respectively provided with a through hole and each U-shaped reed be connected with a braking plate one end in two ends, the guide rod being provided with block and draw-in groove is held at two ends respectively, circlip for shaft; Guide rod passes two calipers, two guide holes and two through holes, and circlip for shaft is stuck in draw-in groove fixing; The outside of caliper is provided with the oil inlet hole be communicated with two oil har openings respectively.This hydraulic brake for bicycle can be used for a wheel rim braking, and during use, two braking plates lay respectively at the both sides of a wheel rim, and braking pump assembly Installed is in the side of hundle-bar; When braking front wheel rim and rear rim respectively with two hydraulic brake for bicycles, the symmetrical and point other Installed of the brake caliper assy brake pump assembly of two hydraulic brake for bicycles is in the left and right sides of hundle-bar.Two brake pistons of the brake caliper assy of this hydraulic brake for bicycle respectively promote a braking plate by a pressing plate and brake, balanced and two braking plate even wearings to the braking force of wheel rim both sides.
Described brake pump assembly comprises and is provided with piston hole and the pump housing be connected with hundle-bar, be arranged in piston hole and rear end is provided with the promotion piston of hemisphere counterbore and is positioned at and promotes the reseting pressuring spring of pistons front sides, one end is provided with side opening and the brake handle hinged with the pump housing, be arranged in side opening and the lining ring that mates with the aperture of side opening of external diameter, the attaching nut be connected with inside lining ring, the push rod that one end is threaded with attaching nut through lining ring; The other end of push rod is provided with the bulb withstanding hemisphere counterbore, push down plain washer on rear side of bulb and push down plain washer rear end and with the circlip for hole of piston hole clamping; The front end of piston hole is provided with oil outlet.Brake pump assembly is provided with the push rod of bulb withstanding the hemisphere counterbore promoting piston, light and flexible when making braking; Brake power is provided to make braking reliably laborsaving by brake pump assembly to brake caliper assy.
Described brake pump assembly also comprises parking pressure-keeping mechanism; The lower end surface of the pump housing is provided with screw; The parking that the front end of brake handle is provided with compresses face; Parking pressure-keeping mechanism comprises and is provided with mesopore and the parking swivel nut be threaded with screw, parking spring, and diameter mates with median pore diameter and one end is provided with parking bar and the parking screw plug of bulge loop; The other end of parking bar is threaded with parking screw plug through mesopore and parking spring.When pulling brake handle braking, overcome the parking screw plug that parking spring resistance presses parking pressure-keeping mechanism, parking bar protrudes upward parking that the front end that compresses brake handle is provided with and compresses face and carry out pressurize, realizes parking braking; Parking pressure-keeping mechanism makes need not to pull brake handle the pushing time during braking just can realize parking braking.
Described promotion piston comprises piston body and two leather cups be set in outside piston body.The sealing promoted between piston and the pump housing can be improved.
The outside of described housing is provided with the venting valve opening that the vent hole that is communicated with oil har opening is communicated with vent hole gusset with one end, front end is provided with the bleeder screw that taper type Duan Bingyu vent hole is threaded, to be threaded with venting valve opening and the bleed valve of taper type section gusset is withstood in one end, to cover bleed valve outer end and the dust cap be connected with housing; Vent seal circle is provided with between bleeder screw and vent hole.Screwing out bleeder screw makes taper type section and bleed valve one end depart from, and the air in oil har opening can be discharged from bleed valve.
Cylinder seal is provided with between described brake piston and oil har opening.Screwing out bleeder screw makes taper type section and bleed valve one end depart from, and the air in oil har opening can be discharged from bleed valve.
The stifled oil draining bolt that the oil hole be communicated with piston hole and screw rod are threaded with oil hole is provided with outside the described pump housing.Screwing out stifled oil draining bolt can from oil hole to oiling piston hole.
Compared with prior art, the invention has the beneficial effects as follows: each two brake pistons of this hydraulic brake for bicycle respectively promote a braking plate by a pressing plate and brake, balanced and two braking plate even wearings to the braking force of wheel rim both sides.Brake pump assembly is provided with the push rod of bulb withstanding the hemisphere counterbore promoting piston, light and flexible when making braking; Brake power is provided to make braking reliably laborsaving by brake pump assembly to brake caliper assy.Two are set in the leather cup outside piston body, can improve the sealing promoted between piston and the pump housing.Screwing out bleeder screw makes taper type section and bleed valve one end depart from, and the air in oil har opening can be discharged from bleed valve.Parking pressure-keeping mechanism makes need not to pull brake handle the pushing time during braking just can realize parking braking.Be provided with cylinder seal between brake piston and oil har opening, the sealing between brake piston and oil har opening can be improved.Screwing out stifled oil draining bolt can from oil hole to oiling piston hole.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present invention;
Fig. 2 is the A-A sectional view of Fig. 1;
Fig. 3 is the structural representation of brake pump assembly;
Fig. 4 is the B-B sectional view of Fig. 3;
Fig. 5 is the schematic diagram of brake pump assembly parking pressurize.
In figure: connected pipes-1, brake pump assembly-2, piston hole-21, the pump housing-22, hemisphere counterbore-23, promote piston-24, reseting pressuring spring-25, side opening-26, brake handle-27, lining ring-28, attaching nut-29, push rod-210, bulb-211, plain washer-212, circlip for hole-213, oil outlet-214, piston body-215, leather cup-216, stifled oil draining bolt-217, screw-218, parking compresses face-219, mesopore-220, parking swivel nut-221, parking spring-222, bulge loop-223, parking bar-224, parking screw plug-225, brake caliper assy-3, housing-31, oil har opening-32, brake piston-33, caliper-34, guide hole-35, pressing plate-36, braking plate-37, through hole-38, U-shaped reed-39, guide rod-310, oil inlet hole-311, vent hole-312, venting valve opening-313, taper type section-314, bleeder screw-315, bleed valve-316, dust cap-317, vent seal circle-318, cylinder seal-319, block-320, draw-in groove-321, circlip for hole-322.
Embodiment
Below in conjunction with shown in accompanying drawing, the present invention is described further.
As shown in accompanying drawing 1 to accompanying drawing 5: a kind of hydraulic brake for bicycle, comprise brake pump assembly 2, brake caliper assy 3, connected pipes 1, described brake caliper assy 3 comprises the housing 31 be connected with frame screw, two opposing end surfaces are respectively provided with an oil har opening 32 and are arranged in the brake piston 33 of oil har opening 32 and the caliper 34 be connected with housing 31 screw, two are each positioned at the pressing plate 36 that inside a brake piston 33 and one end is provided with guide hole 35, two each braking plates 37 with side bonds in a pressing plate 36, dual-side is respectively provided with a through hole 38 and the U-shaped reed 39 be connected respectively is inlayed with braking plate 37 one end in two ends, two ends are respectively equipped with the guide rod 310 of block 320 and draw-in groove 321, circlip for shaft 322, guide rod 310 is through two calipers, 34, two guide holes 35 and two through holes 38, and circlip for shaft 322 is stuck in draw-in groove 321 fixing, the outside of caliper 34 is provided with the oil inlet hole 311 be communicated with two oil har openings 32 respectively.
Described brake pump assembly 2 comprises and is provided with piston hole 21 and the pump housing 22 be connected with hundle-bar screw, be arranged in piston hole 21 and rear end is provided with the promotion piston 24 of hemisphere counterbore 23 and is positioned at the reseting pressuring spring 25 promoted on front side of piston 24, one end is provided with side opening 26 and with the pump housing 22 by the hinged brake handle 27 of hinging shaft, be arranged in side opening 26 and the lining ring 28 that coordinates with the bore clearance of side opening 26 of external diameter, the attaching nut 29 be connected with interference fit inside lining ring 28, the push rod 210 that one end is threaded with attaching nut 29 through lining ring 28; The other end of push rod 210 is provided with the bulb 211 withstanding hemisphere counterbore 23, push down plain washer on rear side of bulb 211 212 and push down plain washer 212 rear end and with the circlip for hole 213 of piston hole 21 clamping; The front end of piston hole 21 is provided with oil outlet 214.
Described brake pump assembly 2 also comprises parking pressure-keeping mechanism; The lower end surface of the pump housing 22 is provided with screw 218; The parking that the front end of brake handle 27 is provided with compresses face 219; Parking pressure-keeping mechanism comprises and is provided with mesopore 220 and the parking swivel nut 221 be threaded with screw 218, parking spring 222, and diameter coordinates with mesopore 220 diametric clearance and one end is provided with parking bar 224 and the parking screw plug 225 of bulge loop 223; The other end of parking bar 224 is threaded with parking screw plug 225 through mesopore 220 and parking spring.
Described promotion piston 24 comprises piston body 215 and two leather cups 216 be set in outside piston body 215.
The outside of described housing 31 is provided with the venting valve opening that the vent hole that is communicated with oil har opening 32 is communicated with vent hole gusset with one end, front end is provided with the bleeder screw that taper type Duan Bingyu vent hole is threaded, to be threaded with venting valve opening and the bleed valve of taper type section gusset is withstood in one end, to cover bleed valve outer end and the dust cap be connected with housing 31; Vent seal circle is provided with between bleeder screw and vent hole.
Cylinder seal 319 is provided with between described brake piston 33 and oil har opening 32.
The stifled oil draining bolt 217 that the oil hole (for drawing in accompanying drawing) that is communicated with piston hole 21 and screw rod are threaded with oil hole is provided with outside the described pump housing 22.
This hydraulic brake for bicycle can be used for a wheel rim braking, and during use, two braking plates lay respectively at the both sides of a wheel rim, and brake pump assembly 22 Installed is in the side of hundle-bar; When braking front wheel rim and rear rim respectively with two hydraulic brake for bicycles, the symmetrical and point other Installed of the brake pump assembly of two hydraulic brake for bicycles is in the left and right sides of hundle-bar; When pulling brake handle braking, overcome the parking screw plug that parking spring resistance presses parking pressure-keeping mechanism, parking bar protrudes upward parking that the front end that compresses brake handle is provided with and compresses face and carry out pressurize, realizes parking braking.
The invention has the beneficial effects as follows: each two brake pistons of this hydraulic brake for bicycle respectively promote a braking plate by a pressing plate and brake, balanced and two braking plate even wearings to the braking force of wheel rim both sides.Brake pump assembly is provided with the push rod of bulb withstanding the hemisphere counterbore promoting piston, light and flexible when making braking; Brake power is provided to make braking reliably laborsaving by brake pump assembly to brake caliper assy.Two are set in the leather cup outside piston body, can improve the sealing promoted between piston and the pump housing.Screwing out bleeder screw makes taper type section and bleed valve one end depart from, and the air in oil har opening can be discharged from bleed valve.Parking pressure-keeping mechanism makes need not to pull brake handle the pushing time during braking just can realize parking braking.Be provided with cylinder seal between brake piston and oil har opening, the sealing between brake piston and oil har opening can be improved.Screwing out stifled oil draining bolt can from oil hole to oiling piston hole.
It is apparent to one skilled in the art that the present invention can change into various ways, and such change is not thought and departed from the scope of the present invention.All like this to the apparent amendment of the technician in described field, by be included in this claim scope within.
Claims (7)
1. a hydraulic brake for bicycle, comprises brake pump assembly, brake caliper assy, connected pipes; It is characterized in that: described brake caliper assy comprises the housing be connected with frame, two opposing end surfaces are respectively provided with an oil har opening and are arranged in the brake piston of oil har opening and the caliper be connected with housing, two are each positioned at the pressing plate that inside a brake piston and one end is provided with guide hole, two respectively with the braking plate be connected inside a pressing plate, dual-side is respectively provided with a through hole and each U-shaped reed be connected with a braking plate one end in two ends, the guide rod being provided with block and draw-in groove is held at two ends respectively, circlip for shaft; Guide rod passes two calipers, two guide holes and two through holes, and circlip for shaft is stuck in draw-in groove fixing; The outside of caliper is provided with the oil inlet hole be communicated with two oil har openings respectively.
2. hydraulic brake for bicycle according to claim 1, it is characterized in that: described brake pump assembly comprises and is provided with piston hole and the pump housing be connected with hundle-bar, be arranged in piston hole and rear end is provided with the promotion piston of hemisphere counterbore and is positioned at and promotes the reseting pressuring spring of pistons front sides, one end is provided with side opening and the brake handle hinged with the pump housing, be arranged in side opening and the lining ring that mates with the aperture of side opening of external diameter, the attaching nut be connected with inside lining ring, the push rod that one end is threaded with attaching nut through lining ring; The other end of push rod is provided with the bulb withstanding hemisphere counterbore, push down plain washer on rear side of bulb and push down plain washer rear end and with the circlip for hole of piston hole clamping; The front end of piston hole is provided with oil outlet.
3. hydraulic brake for bicycle according to claim 2, is characterized in that: described brake pump assembly also comprises parking pressure-keeping mechanism; The lower end surface of the pump housing is provided with screw; The parking that the front end of brake handle is provided with compresses face; Parking pressure-keeping mechanism comprises and is provided with mesopore and the parking swivel nut be threaded with screw, parking spring, and diameter mates with median pore diameter and one end is provided with parking bar and the parking screw plug of bulge loop; The other end of parking bar is threaded with parking screw plug through mesopore and parking spring.
4. hydraulic brake for bicycle according to claim 2, is characterized in that: described promotion piston comprises piston body and two leather cups be set in outside piston body.
5. the hydraulic brake for bicycle according to claim 1 or 2 or 3 or 4, it is characterized in that: the outside of described housing is provided with the venting valve opening that the vent hole that is communicated with oil har opening is communicated with vent hole gusset with one end, front end is provided with the bleeder screw that taper type Duan Bingyu vent hole is threaded, to be threaded with venting valve opening and the bleed valve of taper type section gusset is withstood in one end, to cover bleed valve outer end and the dust cap be connected with housing; Vent seal circle is provided with between bleeder screw and vent hole.
6. the hydraulic brake for bicycle according to claim 1 or 2 or 3 or 4, is characterized in that: be provided with cylinder seal between described brake piston and oil har opening.
7. the hydraulic brake for bicycle according to Claims 2 or 3 or 4, is characterized in that: be provided with the stifled oil draining bolt that the oil hole be communicated with piston hole and screw rod are threaded with oil hole outside the described pump housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410550623.6A CN104373490B (en) | 2014-10-16 | 2014-10-16 | Hydraulic brake for bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410550623.6A CN104373490B (en) | 2014-10-16 | 2014-10-16 | Hydraulic brake for bicycle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104373490A true CN104373490A (en) | 2015-02-25 |
| CN104373490B CN104373490B (en) | 2015-09-16 |
Family
ID=52552586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410550623.6A Expired - Fee Related CN104373490B (en) | 2014-10-16 | 2014-10-16 | Hydraulic brake for bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104373490B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4222044A1 (en) * | 1992-07-04 | 1994-01-05 | Fichtel & Sachs Ag | Hydraulic disc brake for bicycles - has relative distance between brake linings defined by position of brake piston relative to block |
| CN2288911Y (en) * | 1996-11-28 | 1998-08-26 | 王中原 | Hydraulic brake for bicycle |
| CN1818412A (en) * | 2006-02-25 | 2006-08-16 | 吴思德 | Lever-style booster brake |
| CN201205962Y (en) * | 2008-04-14 | 2009-03-11 | 玉环凯凌集团有限公司 | Regulating mechanism for brake handle |
| CN201647039U (en) * | 2009-10-22 | 2010-11-24 | 万玮实业有限公司 | Four-pistons braking oil hydraulic brake for bicycle |
| CN204175831U (en) * | 2014-10-16 | 2015-02-25 | 余姚市诗玛诺车业有限公司 | Hydraulic brake for bicycle |
-
2014
- 2014-10-16 CN CN201410550623.6A patent/CN104373490B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4222044A1 (en) * | 1992-07-04 | 1994-01-05 | Fichtel & Sachs Ag | Hydraulic disc brake for bicycles - has relative distance between brake linings defined by position of brake piston relative to block |
| CN2288911Y (en) * | 1996-11-28 | 1998-08-26 | 王中原 | Hydraulic brake for bicycle |
| CN1818412A (en) * | 2006-02-25 | 2006-08-16 | 吴思德 | Lever-style booster brake |
| CN201205962Y (en) * | 2008-04-14 | 2009-03-11 | 玉环凯凌集团有限公司 | Regulating mechanism for brake handle |
| CN201647039U (en) * | 2009-10-22 | 2010-11-24 | 万玮实业有限公司 | Four-pistons braking oil hydraulic brake for bicycle |
| CN204175831U (en) * | 2014-10-16 | 2015-02-25 | 余姚市诗玛诺车业有限公司 | Hydraulic brake for bicycle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104373490B (en) | 2015-09-16 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150916 Termination date: 20181016 |