CN2656241Y - Internal breathing piston type spring brake air chamber - Google Patents

Internal breathing piston type spring brake air chamber Download PDF

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Publication number
CN2656241Y
CN2656241Y CN 03266298 CN03266298U CN2656241Y CN 2656241 Y CN2656241 Y CN 2656241Y CN 03266298 CN03266298 CN 03266298 CN 03266298 U CN03266298 U CN 03266298U CN 2656241 Y CN2656241 Y CN 2656241Y
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CN
China
Prior art keywords
piston
capping
air cavity
air chamber
air
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 - Lifetime
Application number
CN 03266298
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Chinese (zh)
Inventor
蒋伟荣
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.)
Ruili Group Ruian Auto Parts Co Ltd
Original Assignee
Ruili Group 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 Ruili Group Co ltd filed Critical Ruili Group Co ltd
Priority to CN 03266298 priority Critical patent/CN2656241Y/en
Application granted granted Critical
Publication of CN2656241Y publication Critical patent/CN2656241Y/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model discloses an internal respiration piston typed spring brake air chamber, comprising a cylinder (7), wherein a piston shaft pipe (8) is equipped inside the cylinder, an energy storage spring (2) is equipped inside the cylinder, a middle shell body (5) on the cylinder divides the cylinder to a front and a back air chamber (C) (B), and the back air chamber is equipped with a compensation air chamber, which is characterized in that the piston shaft pipe is equipped with an air hole (13), a capping (12) with an air exhaustion dent is equipped inside the piston shaft pipe, a one-way valve (11) is equipped inside the capping, and the air hole (13) on the piston shaft pipe is communicated an air hole (14) on the capping through the air exhaustion dent on the capping. The utility model equips the internal respiration structure of the one-way valve inside the piston shaft pipe, the work effect and the service life are both greatly increased, which also makes the vehicle driving safer, and the internal respiration piston typed spring brake air chamber made according to the design scheme of the utility model will must bring actively usage effect to vehicle users.

Description

Internal Respiration Piston Spring Brake Chamber
[technical field]
The utility model relates to a kind of brake equipment of automobile, and what be specifically related to is a kind of compressed air brake cylinder of piston type spring.
[background technology]
In the prior art, piston type brake application by spring air chamber also is provided with the piston central siphon in cylinder body, the cylinder body rear portion is provided with pore, on the piston central siphon, energy stroage spring is set, air cavity before and after middle shell is divided into cylinder body, during its exhaust, respiration tracheae on the back air cavity and preceding air cavity are connected, and unnecessary gas is discharged by preceding air cavity.The compressed air brake cylinder of this structure, because preceding air cavity is connected with extraneous, during braking during standstill, compensation air cavity in the cylinder body is owing to produce the effect of sucking pump, easily suck foreign material such as silt by respiration tracheae, and energy stroage spring and the seal ring in the air cavity after damaging, can reduce the service life of braking during standstill part, and respiration tracheae collides with easily in the vehicle ' process and comes off, silt, mud etc. directly enter the compensation air cavity by the pore on the cylinder body, cause seal ring to damage, the energy stroage spring corrosion, braking during standstill lost efficacy in advance, adopt the O-ring seals dynamic seal at the piston central siphon with the junction of middle shell in addition, the time very easily damage in work, and cause between air cavity and collaborate, braking failure occurs.
[summary of the invention]
In view of the problem that known technology exists, the purpose of this utility model provides a kind of scientific structure, task performance height, long service life, Internal Respiration Piston Spring Brake Chamber that ride safety of automobile is good.For achieving the above object, the utility model is finished as follows: this Internal Respiration Piston Spring Brake Chamber, has cylinder body, be provided with the piston central siphon in the described cylinder body, be provided with energy stroage spring in the described cylinder body alive, air cavity before and after middle shell on the described cylinder body is divided into cylinder body, has the compensation air cavity in the air cavity of described back, described piston central siphon is provided with pore, and in the piston central siphon, be provided with the band air discharge duct capping, be provided with check valve in described capping, the pore on the described piston central siphon communicates with pore in the capping by the air discharge duct in the capping; Be equipped with vent on the air cavity of described front and back; End at check valve is provided with spring, is provided with two O-ring seals in the junction of described piston central siphon and middle shell.
The utility model is provided with the internal respiration structure of check valve in the piston central siphon after, unnecessary gas is discharged by this check valve, no longer the deflation hole by exhaust casing carries out air-breathing and expiration, guaranteed the task performance of brake device for car, improved the life-span of compressed air brake cylinder, after the end of check valve is provided with spring, when damaging appears in the seal ring of piston central siphon and middle shell junction, the gas pressure of back air cavity is on check valve, check valve overcomes the resistance valve-off of spring, the Pneumatic pipe cleaner that prevents the back air cavity is crossed the compensation air cavity that the piston central siphon enters cylinder body, destroy braking, make vehicle ' safer, after the junction of piston central siphon and middle shell is provided with two O-ring seals, make back air cavity and compensation air cavity sealing property better, prevented the collaborate phenomenon of compensation air cavity effectively, and the gas of assurance compensation air cavity can be discharged by check valve smoothly with the back air cavity.According to the Internal Respiration Piston Spring Brake Chamber of the utility model design motif manufacturing, bring positive result of use will for vast user vehicle.
[description of drawings]
The utility model has following accompanying drawing:
Fig. 1 is the utility model prior art constructions scheme drawing;
Fig. 2 is a structural representation of the present utility model;
Fig. 3 is the enlarged drawing at the utility model Fig. 2 M place.
Number in the figure 4 is a y-shaped ring; 1 is respiration tracheae.
[specific embodiment]
Accompanying drawing has been represented structure of the present utility model and embodiment, further describes each relevant details of embodiment below more in conjunction with the accompanying drawings.This Internal Respiration Piston Spring Brake Chamber, has cylinder body 7, be provided with piston central siphon 8 in the described cylinder body 7, be provided with energy stroage spring 2 in the described cylinder body 7, air cavity C, B before and after middle shell 5 on the described cylinder body 7 is divided into cylinder body 7, described back air cavity B has compensation air cavity A, described piston central siphon 8 is provided with pore 13, and in piston central siphon 8, be provided with the band air discharge duct capping 12, be provided with check valve 11 in described capping 12, the pore 13 on the described piston central siphon 8 communicates with pore 14 in the capping by the air discharge duct in the capping.When vehicle was removed Parking, the unnecessary gas in compensation air cavity A chamber passed through piston central siphon 8, the pore 14 in check valve 11 and capping, and by pore 13 exhaust to atmospheres on air discharge duct in the capping 12 and the piston central siphon 8; When carrying out braking during standstill, compensation air cavity A forms air extracting pump, air cavity C before gas enters into from air extractor vent 16, through the pore 13 on the piston central siphon 8, behind the pore 14 in the capping 12 in air discharge duct and the capping 12, the flow through gap of 12 of check valve 11 and cappings, enter back air cavity B through piston central siphon 8 at last, guarantee the smooth work of piston, piston central siphon 8 is provided with two O-ring seals 17 with the junction of middle shell 5,3, described seal ring 3 can play sealing function, prevent collaborating between each air cavity, gas leak phenomenon, and can prevent that back air cavity B from sucking silt, impurity such as mud are sneaked into compensation air cavity C, damage the seal ring 17 of back air cavity B, the safe in utilization of braking during standstill part and the safety of travelling have been guaranteed, be provided with spring 10 in the end of check valve 11, when damaging appears in O-ring seals 3, air cavity C before air enters into by vent 16, the gas pressure of preceding air cavity C is on check valve 11, check valve 11 overcomes the resistance valve-off of spring 10, the Pneumatic pipe cleaner of air cavity C is crossed piston central siphon 8 and is entered the braking of compensation air cavity C destruction before preventing, thereby makes vehicle ' safer.When driving, vent 15 air inlets are to back air cavity B, and air pressure promotes energy stroage spring 2 and brake off, make automobile energy cruising.The of the present utility model design successfully is greatly improved the service life of piston type brake application by spring air chamber, and its task performance has also had corresponding raising, compared with prior art, has substantive distinguishing features and progress.

Claims (4)

1, a kind of Internal Respiration Piston Spring Brake Chamber, has cylinder body (7), be provided with piston central siphon pipe (8) in the described cylinder body (7), be provided with energy stroage spring (2) in the described cylinder body (7), air cavity (C) (B) before and after middle shell (5) on the described cylinder body (7) was divided into cylinder body (7), described back air cavity (B) has compensation air cavity (A), it is characterized in that described piston central siphon pipe (8) is provided with pore (13), and in piston central siphon pipe (8), be provided with the band air discharge duct capping (12), be provided with check valve (11) in described capping (12), the pore (13) on the described piston central siphon pipe (8) communicates with pore (14) in the capping by the air discharge duct in the capping (12).
2, Internal Respiration Piston Spring Brake Chamber according to claim 1 is characterized in that being equipped with vent (16) (15) on described front and back air cavitys (C) (B).
3, Internal Respiration Piston Spring Brake Chamber according to claim 1 is characterized in that the end of described check valve (11) is provided with spring (10).
4,, it is characterized in that the described piston central siphon pipe (8) and the junction of middle shell (5) are provided with two O-ring seals (17) (3) according to the described Internal Respiration Piston Spring Brake Chamber of above-mentioned any one claim.
CN 03266298 2003-06-30 2003-06-30 Internal breathing piston type spring brake air chamber Expired - Lifetime CN2656241Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 03266298 CN2656241Y (en) 2003-06-30 2003-06-30 Internal breathing piston type spring brake air chamber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 03266298 CN2656241Y (en) 2003-06-30 2003-06-30 Internal breathing piston type spring brake air chamber

Publications (1)

Publication Number Publication Date
CN2656241Y true CN2656241Y (en) 2004-11-17

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 03266298 Expired - Lifetime CN2656241Y (en) 2003-06-30 2003-06-30 Internal breathing piston type spring brake air chamber

Country Status (1)

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CN (1) CN2656241Y (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101321653B (en) * 2005-12-02 2010-10-20 克诺尔商用车制动***有限公司 Combined service brake and stored-energy brake cylinder with internal ventilation
CN102011819A (en) * 2010-10-29 2011-04-13 公主岭安宝有限责任公司 Brake air chamber, brake system comprising same and motor vehicle
CN101239619B (en) * 2007-02-08 2011-11-16 郑守利 Car brake pump
CN101713439B (en) * 2009-12-29 2012-05-02 瑞立集团瑞安汽车零部件有限公司 Improved multifunctional clutch booster
CN113819282A (en) * 2021-08-23 2021-12-21 浙江工正机械有限公司 Modular breather valve for spring brake chamber and spring brake chamber

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101321653B (en) * 2005-12-02 2010-10-20 克诺尔商用车制动***有限公司 Combined service brake and stored-energy brake cylinder with internal ventilation
CN101239619B (en) * 2007-02-08 2011-11-16 郑守利 Car brake pump
CN101713439B (en) * 2009-12-29 2012-05-02 瑞立集团瑞安汽车零部件有限公司 Improved multifunctional clutch booster
CN102011819A (en) * 2010-10-29 2011-04-13 公主岭安宝有限责任公司 Brake air chamber, brake system comprising same and motor vehicle
CN113819282A (en) * 2021-08-23 2021-12-21 浙江工正机械有限公司 Modular breather valve for spring brake chamber and spring brake chamber

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
ASS Succession or assignment of patent right

Owner name: RAYLEIGH GROUP RUIAN AUTOMOBILE ACCESSORIES CO.,

Free format text: FORMER OWNER: RUILI GROUP CO., LTD.

Effective date: 20060714

C41 Transfer of patent application or patent right or utility model
TR01 Transfer of patent right

Effective date of registration: 20060714

Address after: Ruili Industrial Park, 1169 No. 325200 Zhejiang Province Economic Development Zone Ruian Meng Lu

Patentee after: Ruian Auto Parts Co., Ltd. of Ruili Group

Address before: Ruili Industrial Park, 1169 No. 325200 Zhejiang Province Economic Development Zone Ruian Meng Lu

Patentee before: Ruili Group Co., Ltd.

C17 Cessation of patent right
CX01 Expiry of patent term

Expiration termination date: 20130630

Granted publication date: 20041117