CN201056206Y - Safety brake compensating gear - Google Patents
Safety brake compensating gear Download PDFInfo
- Publication number
- CN201056206Y CN201056206Y CNU200720124776XU CN200720124776U CN201056206Y CN 201056206 Y CN201056206 Y CN 201056206Y CN U200720124776X U CNU200720124776X U CN U200720124776XU CN 200720124776 U CN200720124776 U CN 200720124776U CN 201056206 Y CN201056206 Y CN 201056206Y
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- CN
- China
- Prior art keywords
- negative
- vacuum pump
- electric vacuum
- pressure
- control circuit
- 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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- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
The utility model discloses a safety braking compensation device, which comprises a vacuum tube (1) and is characterized in that: the vacuum tube (1) is provided with a pressure transducer (2), The signal output ends on the pressure transducer (2) are connected with input ends of a control circuit; output ends of the control circuit are linked to an electric vacuum pump (3); an air circuit inlet to the electric vacuum pump (3) communicates with an outlet to the vacuum tube (1); the considerable effects are as follows: Simple structure, convenient execution, supporting continuous operation of braking devices in any condition, improving the safety and stability of braking devices, and avoiding occurrence of traffic accidents.
Description
Technical field
The utility model belongs to automobile braking device, specifically, is the safety shut-down compensating device that a kind of automobile is used.
Background technology
Existing automobile much all adopts the processing of braking of negative pressure technology, produces suction by driving engine, the air that extracts in the negative-pressure cup forms vacuum, after automobile met emergency situation, chaufeur started brake gear, utilized the negative pressure in the negative-pressure cup that automobile is carried out emergency braking.But the space of negative-pressure cup is limited, under the situation of engine failure, negative-pressure cup can't continue to keep vacuum state, chaufeur is only stepped on bipod, just be filled with barometric pressure in the negative-pressure cup, brake gear just loses the negative pressure support, and brake gear can't continuous firing, automobile loses brake and ensures, causes the safety traffic accident easily.
The shortcoming of prior art is: under the situation of engine failure, automobile braking device can't continuous firing, causes that easily traffic accident takes place.
The utility model content
The purpose of this utility model provides the safety shut-down compensating device that a kind of automobile is used, and can under any circumstance support the continuous firing of brake gear, the traffic accident generation of avoiding so causing.
For achieving the above object, a kind of safety shut-down compensating device described in the utility model, comprise negative-pressure cup, its key is: pressure sensor is installed on negative-pressure cup, the signal output part of this pressure sensor connects the input end of control circuit, the mouth of described control circuit is connected on the electric vacuum pump, and the gas circuit of this electric vacuum pump inlet communicates with described negative-pressure cup delivery port gas circuit.
Pressure sensor keeps the air pressure in the negative-pressure cup is just detected, when the negative-pressure cup internal gas pressure is higher, pressure sensor sends the anticyclonic pressure signal and gives control circuit, control circuit drives electric vacuum pump work, electric vacuum pump extracts the air in the negative-pressure cup, force to keep vacuum in the negative-pressure cup, make it can under any circumstance support the continuous firing of brake gear.
For ease of installation and maintenance, described pressure sensor is installed in the input port or the equipped at outlet port of negative-pressure cup.
Described control circuit is a relay J, and a termination positive supply of this relay J trigger winding after the other end is connected in series described pressure sensor, is connected on the negative supply; One termination positive supply of described relay J normal open switch, the other end of normal open switch is connected on the negative supply after being connected in series described electric vacuum pump.
The trigger winding serial connection pressure sensor of relay J, when the negative-pressure cup internal gas pressure is higher, the pressure sensor conducting, trigger winding gets electric work, and the normal open switch closure of relay J makes electric vacuum pump get electric work, extracts the air in the negative-pressure cup.
The trigger winding of described relay J all is connected on the 12V power supply of automotive battery with normal open switch, and the motor of described electric vacuum pump is the 12V direct drive.
On the gas circuit inlet of described electric vacuum pump, check valve is installed.When avoiding the driving engine normal operation, the air-flow in the electric vacuum pump pours in down a chimney to negative-pressure cup.
Remarkable result of the present utility model is: simple in structure, it is convenient to implement, and can under any circumstance support the continuous firing of brake gear, can improve the safety and the stability of brake gear, the generation that avoids traffic accident.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the structural representation of control circuit.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
As shown in Figure 1: a kind of safety shut-down compensating device, be provided with negative-pressure cup 1, pressure sensor 2 is installed on negative-pressure cup 1, the signal output part of this pressure sensor 2 connects the input end of control circuit, the mouth of described control circuit is connected on the electric vacuum pump 3, and the gas circuit of this electric vacuum pump 3 inlet communicates with described negative-pressure cup 1 delivery port gas circuit.
For ease of installation and maintenance, described pressure sensor 2 is installed in the input port or the equipped at outlet port of negative-pressure cup 1.As shown in Figure 1: present embodiment is mounted in the gas delivery port place of negative-pressure cup 1.
As shown in Figure 2: described control circuit is a relay J, a termination positive supply of this relay J trigger winding, and the other end is connected on the negative supply after being connected in series described pressure sensor 2; One termination positive supply of described relay J normal open switch, the other end of normal open switch is connected on the negative supply after being connected in series described electric vacuum pump 3.
The trigger winding serial connection pressure sensor 2 of relay J, when negative-pressure cup 1 internal gas pressure is higher, pressure sensor 2 conductings, trigger winding gets electric work, and the normal open switch closure of relay J makes electric vacuum pump 3 get electric work, extracts the air in the negative-pressure cup 1.
The trigger winding of described relay J all is connected on the 12V power supply of automotive battery with normal open switch, and the motor of described electric vacuum pump 3 is 12V direct drive.
As shown in Figure 1: on the gas circuit inlet of described electric vacuum pump 3, check valve 4 is installed.When avoiding the driving engine normal operation, the air-flow in the electric vacuum pump 3 pours in down a chimney to negative-pressure cup 1.
Its service condition is as follows:
As shown in Figure 1, 2: the gas delivery port at negative-pressure cup 1 is installed a threeway, negative-pressure cup 1 is connected with electric vacuum pump 3 gas circuits with automotive engine, and check valve 4 is installed at the gas circuit of electric vacuum pump 3 inlet, in conjunction with another check valve on the automotive engine gas circuit, guarantee under normal circumstances, extract air in the negative-pressure cup 1 separately by automotive engine, under abnormal condition appear in driving engine, separately by the air in the electric vacuum pump 3 extraction negative-pressure cups 1, make to continue in the negative-pressure cup 1 to keep vacuum state, can support the continuous firing of brake gear at any time.
Claims (5)
1. safety shut-down compensating device, comprise negative-pressure cup (1), it is characterized in that: pressure sensor (2) is installed on negative-pressure cup (1), the signal output part of this pressure sensor (2) connects the input end of control circuit, the mouth of described control circuit is connected on the electric vacuum pump (3), and the gas circuit of this electric vacuum pump (3) inlet communicates with described negative-pressure cup (1) delivery port gas circuit.
2. safety shut-down compensating device according to claim 1 is characterized in that: described pressure sensor (2) is installed in the input port or the equipped at outlet port of negative-pressure cup (1).
3. safety shut-down compensating device according to claim 1 is characterized in that: described control circuit is relay (J), a termination positive supply of this relay (J) trigger winding, and the other end is connected on the negative supply after being connected in series described pressure sensor (2); One termination positive supply of described relay (J) normal open switch, the other end of normal open switch is connected on the negative supply after being connected in series described electric vacuum pump (3).
4. according to claim 1 or 3 described safety shut-down compensating devices, it is characterized in that: the trigger winding of described relay (J) all is connected on the 12V power supply of automotive battery with normal open switch, and the motor of described electric vacuum pump (3) is the 12V direct drive.
5. safety shut-down compensating device according to claim 1 is characterized in that: on the gas circuit inlet of described electric vacuum pump (3) check valve (4) is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720124776XU CN201056206Y (en) | 2007-07-20 | 2007-07-20 | Safety brake compensating gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720124776XU CN201056206Y (en) | 2007-07-20 | 2007-07-20 | Safety brake compensating gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201056206Y true CN201056206Y (en) | 2008-05-07 |
Family
ID=39425052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200720124776XU Expired - Fee Related CN201056206Y (en) | 2007-07-20 | 2007-07-20 | Safety brake compensating gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201056206Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102815290A (en) * | 2011-06-07 | 2012-12-12 | 罗伯特·博世有限公司 | Equivalent circuit for activation of an electric vacuum pump in case of control unit failure |
| CN103640563A (en) * | 2013-12-05 | 2014-03-19 | 王水争 | Vacuum replenishment system for brake device of motor vehicle in unpowered state |
| CN104057942A (en) * | 2014-05-27 | 2014-09-24 | 王水争 | Vacuum supply system for motor vehicle brake devices |
-
2007
- 2007-07-20 CN CNU200720124776XU patent/CN201056206Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102815290A (en) * | 2011-06-07 | 2012-12-12 | 罗伯特·博世有限公司 | Equivalent circuit for activation of an electric vacuum pump in case of control unit failure |
| CN103640563A (en) * | 2013-12-05 | 2014-03-19 | 王水争 | Vacuum replenishment system for brake device of motor vehicle in unpowered state |
| CN104057942A (en) * | 2014-05-27 | 2014-09-24 | 王水争 | Vacuum supply system for motor vehicle brake devices |
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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: 20080507 Termination date: 20110720 |