CN202016458U - Automobile hydraulic parking brake device - Google Patents

Automobile hydraulic parking brake device Download PDF

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Publication number
CN202016458U
CN202016458U CN2010206398768U CN201020639876U CN202016458U CN 202016458 U CN202016458 U CN 202016458U CN 2010206398768 U CN2010206398768 U CN 2010206398768U CN 201020639876 U CN201020639876 U CN 201020639876U CN 202016458 U CN202016458 U CN 202016458U
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CN
China
Prior art keywords
brake
way valve
brake device
communicated
hydraulic control
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
CN2010206398768U
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Chinese (zh)
Inventor
窦兰梅
王星
Original Assignee
窦兰梅
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 窦兰梅 filed Critical 窦兰梅
Priority to CN2010206398768U priority Critical patent/CN202016458U/en
Application granted granted Critical
Publication of CN202016458U publication Critical patent/CN202016458U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses an automobile hydraulic parking brake device including a brake cylinder, a stretching mechanism, and a brake pad connected to the stretching mechanism, wherein a spring is arranged in a chamber having a piston rod of the brake cylinder; the piston rod is connected to the stretching mechanism; the brake cylinder is communicated with the output end of a hand-operated two-position three-way valve; the hand-operated two-position three-way valve is communicated with the output end of a hydraulic control two-position three-way valve; and the hydraulic control two-position three-way valve is connected to the oil pump output oil path of a service brake through a one-way valve. Compared with the prior art, the brake device is compact in structure without steel pull wire, thereby avoiding the problem of reduction of effectiveness due to plastic deformation of the steel wire; if the service brake is out of order, the brake device is capable of automatically starting the brake; therefore, automatic brake start is realized if the service brake is out of order; and the safety of the brake device is good.

Description

The automobile hydraulic holding brake device
Technical field
The utility model belongs to vehicle braking device, is specifically related to a kind of automobile hydraulic holding brake device of fluid control.
Background technology
Existing motor vehicle parking brake (being commonly called as parking brake) has three kinds of forms at present: 1, car class, hand braking handle spurs rope stopper with lever principle, makes trailing wheel brake strap or brake clamp locked.2, light, Medium Truck and car, the cross-country car of transmission shaft are arranged, how mechanically hand braking handle, and the brake wheel on the transmission shaft is locked, to reach the fixedly purpose of trailing wheel.3, heavy duty truck and motor omnibus, trailing wheel compressed air brake cylinder have the spring energy-storage braking more, pressurized air jack-up spring during driving, and during Parking, the driver is as long as threshold switch of operation bleeds off gas, and spring will be locked trailing wheel.The structure of Parking Brake comprises joystick, transmission backguy, leverage, brake plate, brake wheel composition.Actuating linkage generally is installed between driver seat and the assistant driver seat, pull-up on the armrest trend.Also there is the part vehicle to be installed on the body-side of underfooting, chaufeur the place ahead (under the instrument desk), by the chaufeur driving that tramps with one's feet down.Above-mentioned drg is braked when Parking, inoperative in the cruising process, itself and running brake do not have the self interlocking function, when if running brake is malfunctioning, Parking Brake can not initiatively participate in braking, this moment, running into needed these two kinds of brake mode of emergency brake situation late, causes traffic accident easily if need brake can only use Jake brake or parking brake braking.Existing brake-applying handle is all by the power transmission that is flexible coupling of steel rope, rocking arm and drg, the long-term use parking brake can make steel wire produce plastic deformation, because this distortion is expendable, so the long-term use meeting reduces effectiveness, the stroke of parking brake also can increase, even the situation that steel wire is broken can occur.
The utility model content
For solving the above-mentioned defective that prior art exists, the purpose of this utility model is to provide a kind of compact conformation, and service brake is malfunctioning to start brake, the automobile hydraulic holding brake device that safety is good automatically.
For achieving the above object, the technical solution adopted in the utility model is: this automobile hydraulic holding brake device, have brake cylinder, open mechanism and with open mechanism's bonded assembly brake plate, it is characterized in that: having of described brake cylinder is provided with spring in the rod end chamber, mechanism is opened in the piston rod connection, brake cylinder is communicated with the mouth of manual two position three-way valve, manually two position three-way valve is communicated with the mouth of hydraulic control two position three-way valve, and the hydraulic control two position three-way valve is communicated with the oil pump output circuit of running brake by check valve.
The delivery port of described check valve is parallel with energy storage.
Adopt the beneficial effect of technique scheme: this automobile hydraulic holding brake device promotes braking during standstill maneuvering valve (valve rod of manual two position three-way valve) when Parking, make hydraulic oil directly be back to fuel tank from the hydraulic control two position three-way valve, there is not fluid pressure in the brake cylinder, spring retracts piston rod, open mechanism and make brake plate be in stretched condition, make automobile keep braking.Cruising, glancing impact not: before vehicle starting, there is not pressure in the service brake oil cylinder, the braking during standstill maneuvering valve back into not braking position, make hydraulic oil enter brake cylinder by hydraulic control two position three-way valve, manual two position three-way valve, brute spring in the compression cylinder, the position that brake plate is got back to do not brake, automobile can cruising.If the oil circuit et out of order of running braking, when oil pressure descended, service brake was lost efficacy, and this situation is only stepped in a flash and could be found at chaufeur, so just has potential safety hazard.Energy storage can store the oil pressure of conduit under fluid pressure, and can keep the stable of oil pressure.The utility model holding brake device is after losing oil pressure, and the brake cylinder inner spring will be in stretched condition, makes automobile keep braking, has realized automatic emergency brake, has played the effect of safety guard-safeguard.Compared with prior art, saved the steel wire backguy, avoided steel wire to produce plastic deformation, the problem that effectiveness reduces has realized that service brake is malfunctioning and can start brake automatically that safety is good.
Description of drawings
Below in conjunction with accompanying drawing specific embodiment of the utility model is described in further detail.
Fig. 1 is a structural representation of the present utility model.
The specific embodiment
Automobile hydraulic holding brake device as shown in Figure 1, have brake cylinder 3, open mechanism 2 and with open mechanism's bonded assembly brake plate 1, open mechanism 2 and adopt the cam-type stretching devices.In driving, open mechanism under the Parking situation and make brake plate fitting brake wheel or wheel disc, keep the vehicle braked effect.Having of described brake cylinder 3 is provided with spring 4 in the rod end chamber, mechanism 2 is opened in the piston rod connection, brake cylinder 3 is communicated with the mouth of manual two position three-way valve 5, manually two position three-way valve 5 is communicated with the mouth of hydraulic control two position three-way valve 6, and hydraulic control two position three-way valve 6 is communicated with oil pump 8 output circuits of running brake by check valve 7.The outlet of check valve 7 energy storage 9 in parallel can be kept the stable of pressure in the oil circuit.When normal vehicle operation when oil piping system pressure is not enough, the oil-feed not conducting of loop of hydraulic control two position three-way valve 6, hydraulic oil in the brake cylinder 3 flows into the oil cylinder release by manual two position three-way valve 5, hydraulic control two position three-way valve 6, spring 4 resets, braking during standstill brake facing locking wheel hub, vehicle can't travel, and guarantees the safety of travelling.During Parking, the pulling brake handle makes the hydraulic oil in the brake cylinder 3 directly flow into fuel tank by manual two position three-way valve 5, and spring 4 resets, braking during standstill brake facing locking wheel hub.During startup, open brake handle, pressure oil is by hydraulic control two position three-way valve 6, manual 5 pairs of brake cylinder 3 fuel feeding of two position three-way valve, and compression spring 4 makes brake facing unclamp wheel hub, can start vehicle.

Claims (2)

1. automobile hydraulic holding brake device, have brake cylinder, open mechanism and with open mechanism's bonded assembly brake plate, it is characterized in that: having of described brake cylinder is provided with spring in the rod end chamber, mechanism is opened in the piston rod connection, brake cylinder is communicated with the mouth of manual two position three-way valve, manually two position three-way valve is communicated with the mouth of hydraulic control two position three-way valve, and the hydraulic control two position three-way valve is communicated with the oil pump output circuit of running brake by check valve.
2. automobile hydraulic holding brake device according to claim 1 is characterized in that: the delivery port of described check valve is parallel with energy storage.
CN2010206398768U 2010-11-26 2010-11-26 Automobile hydraulic parking brake device Expired - Fee Related CN202016458U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010206398768U CN202016458U (en) 2010-11-26 2010-11-26 Automobile hydraulic parking brake device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010206398768U CN202016458U (en) 2010-11-26 2010-11-26 Automobile hydraulic parking brake device

Publications (1)

Publication Number Publication Date
CN202016458U true CN202016458U (en) 2011-10-26

Family

ID=44810133

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010206398768U Expired - Fee Related CN202016458U (en) 2010-11-26 2010-11-26 Automobile hydraulic parking brake device

Country Status (1)

Country Link
CN (1) CN202016458U (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102501843A (en) * 2011-11-07 2012-06-20 中国煤炭科工集团太原研究院 Brake device of fully-hydraulic-driven two-way driving trackless rubber-tyred vehicle
CN102644544A (en) * 2012-04-25 2012-08-22 中国水电顾问集团西北勘测设计研究院 Low-head Kaplan turbine regulating method
CN103935347A (en) * 2014-04-30 2014-07-23 长城汽车股份有限公司 Multifunctional automobile braking system
CN104802782A (en) * 2015-05-08 2015-07-29 魏伯卿 Emergency brake package uphill-downhill front-rear brake automatically adjusting and controlling device
CN106062435A (en) * 2014-03-18 2016-10-26 爱信艾达株式会社 Parking device
CN106121837A (en) * 2016-08-19 2016-11-16 昆山晋桦豹胶轮车制造股份有限公司 Engine throttle remote control
CN106114485A (en) * 2016-07-29 2016-11-16 王付民 The electronic brake device of vehicle
CN111043303A (en) * 2019-12-16 2020-04-21 西安法士特汽车传动有限公司 Automatic transmission braking system
CN111605480A (en) * 2020-05-29 2020-09-01 东风商用车有限公司 Sound and light alarm system and method for warning pedestrians and vehicles in front of motor vehicle

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102501843A (en) * 2011-11-07 2012-06-20 中国煤炭科工集团太原研究院 Brake device of fully-hydraulic-driven two-way driving trackless rubber-tyred vehicle
CN102644544A (en) * 2012-04-25 2012-08-22 中国水电顾问集团西北勘测设计研究院 Low-head Kaplan turbine regulating method
CN102644544B (en) * 2012-04-25 2015-02-04 中国电建集团西北勘测设计研究院有限公司 Low-head Kaplan turbine regulating method
CN106062435A (en) * 2014-03-18 2016-10-26 爱信艾达株式会社 Parking device
CN103935347A (en) * 2014-04-30 2014-07-23 长城汽车股份有限公司 Multifunctional automobile braking system
CN104802782A (en) * 2015-05-08 2015-07-29 魏伯卿 Emergency brake package uphill-downhill front-rear brake automatically adjusting and controlling device
CN106114485A (en) * 2016-07-29 2016-11-16 王付民 The electronic brake device of vehicle
CN106121837A (en) * 2016-08-19 2016-11-16 昆山晋桦豹胶轮车制造股份有限公司 Engine throttle remote control
CN111043303A (en) * 2019-12-16 2020-04-21 西安法士特汽车传动有限公司 Automatic transmission braking system
CN111605480A (en) * 2020-05-29 2020-09-01 东风商用车有限公司 Sound and light alarm system and method for warning pedestrians and vehicles in front of motor vehicle

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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

Granted publication date: 20111026

Termination date: 20161126

CF01 Termination of patent right due to non-payment of annual fee