CN2293488Y - Safety braker for vehicle - Google Patents
Safety braker for vehicle Download PDFInfo
- Publication number
- CN2293488Y CN2293488Y CN 96237404 CN96237404U CN2293488Y CN 2293488 Y CN2293488 Y CN 2293488Y CN 96237404 CN96237404 CN 96237404 CN 96237404 U CN96237404 U CN 96237404U CN 2293488 Y CN2293488 Y CN 2293488Y
- Authority
- CN
- China
- Prior art keywords
- air
- valve
- push rod
- driving cylinder
- vehicle
- 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
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Abstract
The utility model discloses a safety braking device for an air pressure braking vehicle, composed of an air valve, a driving cylinder, and a cut-off valve. The air inlet of the air valve is connected with the air storing cylinder of the vehicle, and the cut-off valve is connected with the air outlet pipe of an engine. The utility model is characterized in that the air valve is provided with an air inlet port, forward and backward air ports, and an air outlet pore. A push rod arranged in the valve is used for controlling the air pressure to enter the driving cylinder or return to the air valve and exhaust out of the valve; the push rod in a driving cylinder controls the opening and closing of the air blocking gate of the cut-off valve under the action of the air pressure. The air blocking gate is closed, the pressure in the air cylinder is increased, the rotary speed of the engine is reduced, and the stable and safe speed reducing braking can be realized.
Description
The utility model belongs to the automotive safety brake field, and is outstanding and be applicable to the diesel motor to be the compression air brake formula vehicle of power.
Mountain highway is complicated and changeable, and running car is during to following long abrupt slope, when the long-time apply the brakes of chaufeur, can make the wheel hub heating of stopping too high, causes to break away about brake failure or sudden stop are very easily and cause traffic accident.So, more existing vehicles have been installed exhaust brake, its exhaust by killing engine, strengthen the engine air cylinder pressure, to increase the working resistance of driving engine, reduce the rotating speed of driving engine, utilize the variable ratio drive system of engine low rotation speed through vehicle, the rotating speed of control vehicle drive wheel, thus reach the braking purpose.On the JN150 type automobile of for example homemade the Yellow River a kind of exhaust brake just is housed, when needs use energy brake, stir handle and close the choker that is contained in the automobile engine exhaust pipe, reach the exhaust that kills engine and realize the energy brake of automobile by a connecting rod.The and for example Japanese KL360 of the Hino automobile that produces, it is to connect the exhaust that an electromagnetic valve promotes choker closing automobile driving engine by an electric switch, and realizes energy brake.Above-mentioned two kinds of exhaust braking complex structures also are former car first wife simultaneously, can not be installed on other vehicle, and all not have the function of automatic guidance, safety guard-safeguard.
The purpose of this utility model: for overcoming the defective of existing drg, provide a kind of and realize braking, also can be lower than 300KPa or not have the automotive safety drg that air pressure energy automatically regulating is realized braking at tracheae obstacle, air pressure at locomotive normal operation air pressure (more than the 300KPa).
The utility model is realized in the following way: a shut off valve is installed on the freeing pipe of automotive engine.Establish an air valve that has deflation hole at automobile air receiver end, air valve connects air receiver and a driving cylinder with tracheae respectively, and this driving cylinder is provided with a push rod and pull back spring, and push rod is by the opening and closing of air pressure drive controlling shut off valve choker.When automobile normal running since automobile air receiver air pressure more than 300KPa, gas with certain pressure enters driving cylinder by air valve and backs down rubber diaphragm (perhaps piston), compressed pull back spring, push rod promptly promotes the push rod fork opens the shut off valve choker, and automotive engine is in normal working.When the needs glancing impact, the air valve of this device is closed, blocked by the automobile air receiver and flow through next air-flow.At this moment, the deflation hole of air valve is opened simultaneously, is pressed in gas in the driving cylinder originally and returns air valve and discharge from deflation hole, in the driving cylinder behind the no air pressure, pull back spring is upheld and is resetted, push rod promptly drives the shut off valve choker and closes, and automobile engine exhaust pipe is plugged, and engine exhaust is obstructed, inner pressure of air cylinder increases, the piston bent axle is increased by the resistance of air pressure and makes engine speed slack-off, and the variable ratio drive system by vehicle reduces the driving wheel of vehicle rotating speed, thereby reaches the purpose of brake snub.
The vehicle that adopts compression air brake is under steam if occur trachea rupture or gas leakage suddenly; when brake pressure was lower than 300KPa, the air pressure from air receiver was not enough to back down the pull back spring in the driving cylinder, and the shut off valve choker is in closed condition; the drg automatic guidance has played the effect of safety guard-safeguard.
The utility model is to utilize the interior air pressure of vehicle air receiver to drive to reach the switch motor exhaust passage, produces braking force to increase the engine running resistance, and it is compared with existing drg, has following advantage:
1, this device utilizes automobile self engine interior resistance to control the speed of a motor vehicle, and automobile downhill speed slowly and steadily, chaufeur does not need long-time brake-apply to brake, and alleviates the stress and the labour intensity of chaufeur greatly.
2, this device does not need often to touch on the brake, and wheel hub can not generate heat, and makes former vehicle brake keep good braking effect at any time, has alleviated the wearing and tearing of brake component, increases the service life.
3, use this device, the vehicle descending speed slowly, steadily, meet roadblock or sudden stop need not stepped in the sharp turn, so vehicle the phenomenon of breakking away can not occur.
4, when with this drg, oil feed pump is in closed condition, and therefore every use once all can be fuel-efficient.Do not need to drip with brake yet.
5, when vehicle air receiver air pressure is lower than 300KPa, the shut off valve choker of this device is SELF CL at leisure, reminds chaufeur brake pressure deficiency, notes parking maintenance.
6, when travelling middle vehicle brake trachea rupture or gas leakage, this drg is just closed choker immediately, steps on accelerator and does not play accelerating action, and driving engine meeting automatically extinguishing plays the effect of carrying out safety arrestment automatically.
The explanation of accompanying drawing drawing: Figure of description is this device section-drawing.
Describe the utility model in detail below in conjunction with the embodiment accompanying drawing:
Air valve in the Figure of description (7) is established induction opening (2), establish an air inlet chamber behind the induction opening (2) and load onto spring (3) steel ball (4) and packing seal (5) successively and intercept the air inlet chamber and export, vertical with induction opening (2) load onto a push rod (8) with protruding platform structure, handle (9) is equipped with in push rod (8) rear end, on the air valve (7) before push rod (8) platform packing seal (6) is housed, two packing seals (5) at air valve (7) establish one along contrary pore (11) with (6) are middle, establish deflation hole (10) behind the packing seal (6), push rod (8) boss withstands on the steel ball (4), platform sealed deflation hole (10) and pushed down packing seal (6), and air valve induction opening (2) is connected on the automobile air receiver with tracheae (1).Driving cylinder (16) is established an air chamber (14), and the preceding driving cylinder induction opening (13) of establishing of air chamber (14) is connected along contrary pore (11) with air valve with tracheae (12).Press-fit a rubber diaphragm (15) in the air chamber (14), establish one " T " shape push rod (18) behind the rubber diaphragm (15), push rod (18) is loaded onto pull back spring (17).The interior handicapping valve of shut off valve (19) (22), its door-hinge (23) are installed on shut off valve (19) the valve wall, choker (22) ovalize, and the movable stroke of its opening and closing is less than 90 ° of angles.Choker (22) is connected rocking arm (21) with door-hinge (23), and rocking arm (21) is through the movable connection push rod fork (20) of push rod fork shaft (24), and push rod fork (20) links to each other with push rod (18).Shut off valve (19) is installed in the engine cylinder exhaust engages mouth, automobile exhaust pipe connects shut off valve (19).
Working process: when the handle (9) with air valve clockwise rotates, promptly depress push rod (8), push rod (8) boss will be in the indoor steel ball of inlet chamber (4) and back down, push rod (8) platform is pressed on the packing seal (6) simultaneously, at this moment, the gas of automobile air receiver enters air valve (7), and from enter the air chamber (14) of driving cylinder (16) along contrary pore (11), when air pressure reaches 300KPa when above, rubber diaphragm (15) is about to push rod (18) toward pusher, be that push rod (18) is pitched (20) to the push rod of shut off valve toward pusher, rocking arm (21) drives choker (22) and opens, and this moment, automotive engine was in normal mode of operation.
When the needs glancing impact, earlier transmission for vehicles is hung to required gear, then handle (9) conter clockwise of this device air valve is stirred, push rod (8) withdraws from, spring (3) is upheld steel ball (4) pressed to be attached to and has been intercepted the outlet of air inlet chamber on the packing seal (5), and the air-flow of coming in from the vehicle air receiver is blocked.When push rod (8) when withdrawing from, deflation hole (10) is promptly located opening, makes that the gas in driving cylinder air chamber (14) was reverse originally enters air valve (7) along tracheae (12), discharges through deflation hole (10).Because the no air pressure of air chamber (14), rubber diaphragm (15) and push rod (18) are resetted by the expansion force effect of pull back spring (17), push rod is pitched the tractive of (20) drawn stem (18) simultaneously, and just conter clockwise upset of rocking arm (21) drives choker (22) and closes, just blocked waste pipe, because the pressure in the freeing pipe blocking, cylinder increases, piston is subjected to the resistance of air pressure and makes crankshaft rotating speed slack-off, controlled the rotating speed of driving wheel of vehicle, slowed down and the braking purpose thereby reached.
When not needing to use this device glancing impact, promote push rod (8) and just finish each job procedure that choker (22) is opened voluntarily, thereby make driving engine recover original mode of operation.
Claims (4)
1, a kind of automotive safety drg is made up of air valve (7), driving cylinder (16) and shut off valve (19), air valve (7) has tracheae (12) to be communicated with driving cylinder (16), driving cylinder push rod (18) links to each other with the push rod fork (20) of shut off valve (19), it is characterized in that: air valve (7) front portion is provided with the air inlet chamber, and the side, middle part is provided with suitable contrary pore (11) and the deflation hole (10) vertical with push rod (8); The choker (22) of push rod (18) in push rod fork (20) and shut off valve (19) of being located in the driving cylinder (16) flexibly connects, and choker (22) open and close activity stroke is less than 90 ° of angles.
2, automotive safety drg according to claim 1 is characterized in that indoor spring (3) steel ball (4) that is equipped with of air valve (7) inlet chamber intercepts air inlet chamber outlet; Push rod (8) is protruding platform structure, and boss withstands on the steel ball (4), and platform can be sealed deflation hole (10).
3, automotive safety drg according to claim 1 is characterized in that driving cylinder air chamber (14) is equipped with rubber diaphragm (15), is provided with the push rod (18) of loading onto pull back spring thereafter.
4, automotive safety drg according to claim 1 is characterized in that choker (22) is ellipse garden shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96237404 CN2293488Y (en) | 1996-08-28 | 1996-08-28 | Safety braker for vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96237404 CN2293488Y (en) | 1996-08-28 | 1996-08-28 | Safety braker for vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2293488Y true CN2293488Y (en) | 1998-10-07 |
Family
ID=33912991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96237404 Expired - Fee Related CN2293488Y (en) | 1996-08-28 | 1996-08-28 | Safety braker for vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2293488Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11933424B2 (en) | 2021-07-19 | 2024-03-19 | Caterpillar Inc. | Gas admission valve including seal redundancy, and method of sealing a gas admission valve |
-
1996
- 1996-08-28 CN CN 96237404 patent/CN2293488Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11933424B2 (en) | 2021-07-19 | 2024-03-19 | Caterpillar Inc. | Gas admission valve including seal redundancy, and method of sealing a gas admission valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |