CN201980223U - Double seal hydraulic brake front wheel cylinder - Google Patents

Double seal hydraulic brake front wheel cylinder Download PDF

Info

Publication number
CN201980223U
CN201980223U CN2011200689618U CN201120068961U CN201980223U CN 201980223 U CN201980223 U CN 201980223U CN 2011200689618 U CN2011200689618 U CN 2011200689618U CN 201120068961 U CN201120068961 U CN 201120068961U CN 201980223 U CN201980223 U CN 201980223U
Authority
CN
China
Prior art keywords
wheel cylinder
piston
double seal
hydraulic brake
seal ring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2011200689618U
Other languages
Chinese (zh)
Inventor
杨孚俊
沈小华
骆欢
黄大生
张立新
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HUNAN YUNDA MACHINERY MANUFACTURING Co Ltd
Original Assignee
HUNAN YUNDA MACHINERY MANUFACTURING Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by HUNAN YUNDA MACHINERY MANUFACTURING Co Ltd filed Critical HUNAN YUNDA MACHINERY MANUFACTURING Co Ltd
Priority to CN2011200689618U priority Critical patent/CN201980223U/en
Application granted granted Critical
Publication of CN201980223U publication Critical patent/CN201980223U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Abstract

A double seal hydraulic brake front wheel cylinder comprises a wheel cylinder housing, a piston, an adjusting screw rod, a bolt, a spring caliper, a Y-shaped seal ring and a dust cover; the spring caliper is fixed on the wheel cylinder housing through the bolt; the dust cover is arranged between the wheel cylinder housing and the piston; the adjusting screw rod is mounted in a screw hole in the middle of the piston; the double seal hydraulic brake front wheel cylinder is characterized in that a groove is formed on one third of the inner end part of the piston; and an O-shaped seal ring is arranged in the groove. The double seal hydraulic brake front wheel cylinder has the advantages that the adoption of double seal of the Y-shaped seal ring and the O-shaped seal ring improves the tightness of the brake wheel cylinder, solves the problem that the performance of the hydraulic brake wheel cylinder fails caused by a leakage of brake fluid, reduces the pollution to the brake lining, and prolongs the service life of the brake wheel cylinder.

Description

Wheel cylinder before the double seal hydraulic braking
Technical field
The utility model relates to vehicular spare parts, relates to the preceding wheel cylinder of a kind of double seal hydraulic braking particularly.
Background technology
The brake cylinder of hydraulic brake only adopts y-type seal ring at present, when brake system is not worked, pipeline inner pressure is lower, the y-type seal ring of wheel cylinder only is in slight open configuration, have slightly under the worn-down situation at y-type seal ring, the low pressure seepage may occur, pollute the brake shoe brake cheek friction surface, reduce braking force.
Summary of the invention
The utility model is in order to improve the leak tightness of brake cylinder, and the problem that the deceleration and stopping performance that solution hydraulic braking wheel cylinder causes because of braking liquid leaks lost efficacy provides a kind of double seal hydraulic braking preceding wheel cylinder.
Wheel cylinder before this double seal hydraulic braking, comprise branch pump case, piston, adjusting screw(rod), screw, spring card, y-type seal ring and dust boot, by screw retention spring card is arranged on the branch pump case, be provided with dust boot between branch pump case and the piston, in the screw at piston center adjusting screw(rod) is installed, it is characterized in that inner end 1/3rd places of piston are provided with groove, are provided with the O RunddichtringO in the groove.
Divide pump assembly to adopt the structure of double seal piston to have two functions, the first is managed pressure when brakeless moves very low, and a small amount of seepage may appear in y-type seal ring, carries out secondary seal by the O RunddichtringO, has increased the reliability of antiseep; It two is to form one section zone that has a small amount of braking liquid to exist between the two seals circle, and being in when making y-type seal ring work has lubricated state, can not produce dry friction, greatly prolongs the service life of y-type seal ring, improves leak free reliability and durability.
Advantage of the present utility model: adopt y-type seal ring and the double seal of O RunddichtringO to improve the leak tightness of brake cylinder, solved the problem that deceleration and stopping performance that the hydraulic braking wheel cylinder causes because of braking liquid leaks lost efficacy, reduce the pollution of brake lining, prolonged the service life of brake cylinder.
Description of drawings
Fig. 1 is an inner structure scheme drawing of the present utility model
Among the figure: 1, divide pump case, 2, screw, 3, spring card, 4, piston, 5, dust boot, 6, adjusting screw(rod), 7, y-type seal ring, 8, groove, 9, the O RunddichtringO.
The specific embodiment
Be described as follows of the present utility model below in conjunction with accompanying drawing:
In Fig. 1, be fixed with spring card 3 by screw 2 on the branch pump case 1, be provided with dust boot 5 between branch pump case 1 and the piston 4, in the screw at piston 4 centers adjusting screw(rod) 6 is installed, inner end 1/3rd places of piston 4 all are provided with groove 8, are provided with O RunddichtringO 9 in the groove 8.

Claims (1)

1. wheel cylinder before the double seal hydraulic braking, comprise branch pump case, piston, adjusting screw(rod), screw, spring card, y-type seal ring and dust boot, by screw retention spring card is arranged on the branch pump case, be provided with dust boot between branch pump case and the piston, in the screw at piston center adjusting screw(rod) is installed, it is characterized in that inner end 1/3rd places of piston are provided with groove, are provided with the O RunddichtringO in the groove.
CN2011200689618U 2011-03-16 2011-03-16 Double seal hydraulic brake front wheel cylinder Expired - Fee Related CN201980223U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011200689618U CN201980223U (en) 2011-03-16 2011-03-16 Double seal hydraulic brake front wheel cylinder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011200689618U CN201980223U (en) 2011-03-16 2011-03-16 Double seal hydraulic brake front wheel cylinder

Publications (1)

Publication Number Publication Date
CN201980223U true CN201980223U (en) 2011-09-21

Family

ID=44607689

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011200689618U Expired - Fee Related CN201980223U (en) 2011-03-16 2011-03-16 Double seal hydraulic brake front wheel cylinder

Country Status (1)

Country Link
CN (1) CN201980223U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102425632A (en) * 2011-12-09 2012-04-25 芜湖博格汽车零部件有限公司 Wheel cylinder assembly with adjusting bolt

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102425632A (en) * 2011-12-09 2012-04-25 芜湖博格汽车零部件有限公司 Wheel cylinder assembly with adjusting bolt

Similar Documents

Publication Publication Date Title
CN201566605U (en) Brake wheel cylinder assembly
CN201891776U (en) Automobile wheel cylinder assembly
CN2769602Y (en) Spring braking disc-shape braker
CN103758723A (en) Air pump of engineering machinery braking system
CN201980223U (en) Double seal hydraulic brake front wheel cylinder
CN106286648B (en) Brake for hydrostatic transmissions
CN202579754U (en) Integral hydraulic brake calipers with three pairs of cylinders
CN201982550U (en) Dual-sealing hydraulic rear wheel cylinder
CN202937704U (en) Sealing piece of brake of tractor
CN202732455U (en) Combined-type sealing structure of pump
CN208185287U (en) A kind of caliper piston of energy self-lubricating
CN205315562U (en) Single -piston wheel -brake cylinder
CN202574198U (en) Hydraulic piston of air booster pump
CN204419925U (en) Reduce the clamp structure of car brakeing distance
CN201412462Y (en) Braking caliper device
CN203702477U (en) Air booster pump of engineering mechanical braking system
CN204077641U (en) A kind of brake system of car pedal stroke simulator
CN203796817U (en) Brake pump
CN203463528U (en) Combined structure of brake pump and brake caliper
CN202451670U (en) Dual-pump brake with automatic supply
CN210510051U (en) Automobile brake piston with sealed lubricating structure
CN202991960U (en) Hydraulic cylinder combined sealing disc type brake
CN213655300U (en) Hydraulic cylinder piston with leakage-proof function
CN212028390U (en) Automobile disc brake
CN205836791U (en) A kind of fork truck wet brake of band connecting plate

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20110921

Termination date: 20170316