CN201534541U - Pneumatic automatic brake assisting device - Google Patents
Pneumatic automatic brake assisting device Download PDFInfo
- Publication number
- CN201534541U CN201534541U CN2009200862953U CN200920086295U CN201534541U CN 201534541 U CN201534541 U CN 201534541U CN 2009200862953 U CN2009200862953 U CN 2009200862953U CN 200920086295 U CN200920086295 U CN 200920086295U CN 201534541 U CN201534541 U CN 201534541U
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- CN
- China
- Prior art keywords
- brake
- air chamber
- unit
- vacuum
- electromagnetic valve
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- Expired - Fee Related
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- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
The utility model belongs to a pneumatic automatic brake assisting device, which comprises a brake booster, a diaphragm, a retaining ring, a return spring, a brake lever, an electromagnetic valve and an air conduit. The diaphragm dividing the brake booster into a left air chamber and a right air chamber is arranged in the brake booster, and the brake lever is arranged in the middle of the brake booster; return springs are arranged in the air chambers of the brake booster, and the retaining ring is arranged on the brake lever; and the air conduit is controlled by the electromagnetic valve to be opened or closed, and is communicated with the left and the right air chambers in the brake booster. With simple principle and structure, the automatic brake assisting device utilizes the conventional vacuum gas source or high-pressure gas source of an automobile, thereby greatly reducing the investment cost. As long as the electromagnetic valve receives a control signal, the brake can be automatically started if a driver does not step on the brake pedal, thereby achieving the function of insurance for automobile driving.
Description
Technical field
The utility model belongs to a kind of automobile automatic brake control setup, can drive the brake system work of automobile automatically under given working condition signal.
Technical background
When avoiding traffic accident, primary work is to lose throttle and depress brake pedal to automobile in the process of moving, if chaufeur 0.5 second discovery accident in advance, and in time take measures, 90% traffic accident then can be avoided.But, when chaufeur fails effectively to take appropriate measures because of various reasons, then need in automobile, adopt and realize starting automatically brake device, reduce traffic accident effectively to ensure, improve the safety of passenger and chaufeur.
In order to solve this problem of timely braking, there are many inventors to study the dead-man's device that prevents auto against.As Chinese utility model patent No.200420060237.0, propose a kind of automobile collision dead-man's device,, preferably resolve automobile and collide by crash panel, connecting rod, spring, sleeve, an interlinked mechanism that is configured to, knock into the back or when bumping against other obstacle, can realize brake automatically.But because the space in the car is limited, particularly compact car brings certain difficulty for this Unit Installation.Chinese for another example utility model patent No.200710064130.1, a kind of air pressure type brake assistant equipment, a kind of vapour-pressure type vacuum-assisted device is provided, at the self-propelled vehicle vehicle headway less than safety distance, chaufeur loses consciousness or when having little time in time to take to brake, replaces chaufeur that vehicle is carried out autobrake.This designs by air pressure type brake assistant equipment, the vacuum booster of controller, driving engine trunnion, automobile and master brake cylinder and air pressure vacuum-assisted device.In addition, Tsing-Hua University's automotive safety and energy-conservation National Key Laboratory have applied for the patent of fluid pressure type brake actuator, the hydraulic efficiency pressure system of utilizing a cover to be made of motor, oil pump, energy storage, high and low voltage switch valve realizes automatically performing of vehicle, and the start signal of high and low voltage switch valve is from the vehicle headway controller.Can in time move the time when vehicle headway and effectively vehicle is braked, thereby avoid or reduce traffic accident less than safety distance.Be independent of the hydraulic efficiency pressure system that vehicle itself is braked because it has designed a cover, cost increases greatly, and high-pressure hydraulic, also is unfavorable for sealing, installs and maintenance.
Summary of the invention
The purpose of this utility model is, a kind ofly having under the control signal situation for power actuated vehicle designs, and vehicle is started automatically and controls servo vacuum air chamber in the brake system or the auxiliary device of vacuum brake air pump.
The said vapour-pressure type self-actuating brake of the utility model auxiliary device, mainly by the vacuum brake servo-unit, barrier film, back-up ring, pull back spring, bracket arm, electromagnetic valve, and gas conduit parts such as (comprising air pipe and/or vacuum lamp) are formed.In the vacuum brake servo-unit, be provided with barrier film, this barrier film is divided into mutual fully enclosed left and right sides air chamber with the vacuum brake servo-unit, and bracket arm places in the middle of the vacuum brake servo-unit; In the air chamber of vacuum brake servo-unit shell and servo vacuum air chamber (the perhaps vacuum brake air pump) side of joining, be provided with pull back spring, on bracket arm and by the barrier film place, be provided with back-up ring; Opening and closed condition of solenoid control gas conduit (air pipe or vacuum lamp), the left and right sides air chamber that is arranged in the vacuum brake servo-unit can be connected with two vacuum lamps respectively, and the air chamber that pull back spring is not set is connected with air pipe.
The said vapour-pressure type self-actuating brake of the utility model auxiliary device, can be fixed together with servo vacuum air chamber (or vacuum brake air pump), its bracket arm is connected with servo vacuum air chamber (or vacuum brake air pump), by opening and closed condition in solenoid control air pipe and the vacuum lamp, can not depress as yet under the state of brake pedal at chaufeur, make barrier film promote back-up ring and compression retracteding position spring to the air pipe bubbling air, drive servo vacuum air chamber or vacuum brake air pump, realize autobrake vehicle.
This principle of device and simple in structure as long as just can start the brake system device automatically after electromagnetic valve receives control signal, plays the effect of vehicle drive safety control.
Description of drawings
Accompanying drawing 1: the vapour-pressure type self-actuating brake auxiliary device structural principle scheme drawing that comprises vacuum;
Accompanying drawing 2: MONTE CARLO METHOD self-actuating brake auxiliary device structural principle scheme drawing;
The specific embodiment
Be further detailed below in conjunction with the structure and the principle of work of accompanying drawing the said vapour-pressure type self-actuating brake of the utility model auxiliary device.
As shown in Figure 1, the said vapour-pressure type self-actuating brake of the utility model auxiliary device, mainly by vacuum brake servo-unit 1, barrier film 2, back-up ring 3, pull back spring 4, bracket arm 5, electromagnetic valve 6, and air pipe 7 and/or vacuum lamp 8
A, 8
BForm Deng parts.In vacuum brake servo-unit 1, be provided with barrier film 2, barrier film 2 is divided into mutual fully enclosed left and right sides air chamber 9 with the vacuum brake servo-unit
A, 9
B, bracket arm 5 places in the middle of the vacuum brake servo-unit 1; Air chamber 9 in vacuum brake servo-unit 1 one sides
BIn, be provided with pull back spring 4, on bracket arm 5, (lean on barrier film 2 places) and be provided with back-up ring 3; Electromagnetic valve 6 control air pipes 7 or vacuum lamp 8
A, 8
BOpen and closed condition, be arranged in the left and right sides air chamber 9 of vacuum brake servo-unit
A, 9
BRespectively with vacuum lamp 8
A, 8
BBe connected, the air chamber 9 of pull back spring is not set
ABe connected with air pipe 7.
The principle of work of the said vapour-pressure type self-actuating brake of the utility model auxiliary device is: said self-actuating brake auxiliary device is fixed on servo vacuum air chamber 10 or the vacuum brake air pump, when normal driving is operated, electromagnetic valve 6 is closed air line passageway, makes left and right sides air chamber 9 in the vacuum brake servo-unit
A, 9
BThe same degree of vacuum of interior maintenance; This moment, bracket arm 5 promoted original servo vacuum air chamber or vacuum brake air pump, plays the effect of braking when depressing brake pedal; When occurring needing stop signal, but brake pedal does not depress, and this moment, air door 11 was opened in 6 actions of stop signal control electromagnetic valve, closed vacuum valve 12, and air enters right air chamber 9 by air pipe 7
A, barrier film 2 to be exerted pressure, barrier film 2 promotes back-up ring 3 and compression retracteding position spring 4 is moved to the left bracket arm 5, plays the effect of self-actuating brake braking.
The said vapour-pressure type self-actuating brake of the utility model auxiliary device, also can adopt anticyclonic pressure to drive autobrake system, the structure of its anticyclonic pressure brake servo-unit and principle and vacuum brake servo-unit are similar, only source of the gas is distinguished to some extent, its source of the gas derives from the high pressure gas of pneumatic brake, and its same suspension control signal drives.Its structure as shown in Figure 2.Promptly cancel the vacuum lamp 8 in the accompanying drawing 1
B, the air chamber 9 that is being separated out by barrier film 2 only
BOn an exhausr port 8 is set
B' get final product; Air chamber 9
AOn vacuum lamp 8
ABe subjected to the control of electromagnetic valve 6 to play sealed gas chamber 9
AEffect, make to be injected into air chamber 9
AIn high pressure gas can effectively promote back-up ring 3 and compression retracteding position spring 4 is moved to the left bracket arm 5, play the effect of self-actuating brake braking.
The said vapour-pressure type self-actuating brake of the utility model auxiliary device has utilized existing vacuum source or high-pressure air source on the vehicle, and this makes the effect of this device be improved, and has reduced required investment cost widely.If in the said device of the utility model, MONTE CARLO METHOD brake auxiliary device is set, its effect and principle are still set up, and just need introduce this device to pressurized air and get final product, and said vapour-pressure type self-actuating brake auxiliary device is connected with the vacuum brake air pump.So, the said vapour-pressure type self-actuating brake of the utility model auxiliary device, its protection domain had both comprised vacuum, had also comprised high pressure gas Design of device and scheme.The position that they install is looked its space size and is determined, can make serial connection, also can be attempted by on the bracket arm.
Claims (4)
1. vapour-pressure type self-actuating brake auxiliary device is by brake servo-unit, barrier film, back-up ring, pull back spring, bracket arm, electromagnetic valve, and gas conduit is formed, it is characterized in that, in brake servo-unit (1), be provided with brake servo-unit (1) is divided into left and right sides air chamber (9
A, 9
B) barrier film (2), bracket arm (5) places in the middle of brake servo-unit (1); Air chamber (9 at brake servo-unit (1)
B) in, being provided with pull back spring (4), bracket arm (5) is provided with back-up ring (3); Gas conduit is controlled it by electromagnetic valve (6) and is opened and close, and the left and right sides air chamber in the brake servo-unit is connected with gas conduit.
2. according to the said self-actuating brake auxiliary device of claim 1, it is characterized in that said gas conduit is air pipe (7), air pipe (7) is controlled it by electromagnetic valve (6) and is opened and close, with brake servo-unit air chamber (9
A) be connected.
3. according to the said self-actuating brake auxiliary device of claim 1, it is characterized in that said gas conduit is a vacuum lamp (8
A, 8
B), vacuum lamp (8
A, 8
B) control it by electromagnetic valve (6) and open and close, respectively with brake servo-unit air chamber (9
A, 9
B) be connected.
4. according to the said self-actuating brake auxiliary device of claim 1, it is characterized in that said gas conduit is a vacuum lamp (8
A), vacuum lamp (8
A) control it by electromagnetic valve (6) and open and close, with brake servo-unit air chamber (9
A) be connected, at air chamber (9
B) on exhausr port (8 is set
B').
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200862953U CN201534541U (en) | 2009-06-11 | 2009-06-11 | Pneumatic automatic brake assisting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200862953U CN201534541U (en) | 2009-06-11 | 2009-06-11 | Pneumatic automatic brake assisting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201534541U true CN201534541U (en) | 2010-07-28 |
Family
ID=42534323
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200862953U Expired - Fee Related CN201534541U (en) | 2009-06-11 | 2009-06-11 | Pneumatic automatic brake assisting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201534541U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109305150A (en) * | 2017-07-27 | 2019-02-05 | 天津所托瑞安汽车科技有限公司 | A kind of gas brake auxiliary brake applied to large commercial vehicle |
-
2009
- 2009-06-11 CN CN2009200862953U patent/CN201534541U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109305150A (en) * | 2017-07-27 | 2019-02-05 | 天津所托瑞安汽车科技有限公司 | A kind of gas brake auxiliary brake applied to large commercial vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100728 Termination date: 20120611 |