CN202528970U - Automatic fault detecting device for automotive brake oil circuit - Google Patents
Automatic fault detecting device for automotive brake oil circuit Download PDFInfo
- Publication number
- CN202528970U CN202528970U CN2012200510941U CN201220051094U CN202528970U CN 202528970 U CN202528970 U CN 202528970U CN 2012200510941 U CN2012200510941 U CN 2012200510941U CN 201220051094 U CN201220051094 U CN 201220051094U CN 202528970 U CN202528970 U CN 202528970U
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- brake
- oil
- pump shell
- switch
- hydraulic
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- Expired - Fee Related
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- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
The utility model discloses an automatic fault detecting device for an automotive brake oil circuit. A normally closed detecting switch is arranged at the top end of a brake pedal and is in linkage with the brake pedal, an electromagnetic valve is mounted in the front of an oil inlet of a brake wheel cylinder, a detecting pump shell is tightly attached on the upper portion of a brake pump shell, an oil cavity is communicated with a detecting oil cavity by the aid of a balance oil hole, a pressurizing piston is arranged in the detecting pump shell, a return spring is arranged on the right side of the pressurizing piston, a right stopping block is arranged on the inner wall of the middle of the detecting pump shell, an oil inlet is arranged on the upper portion of the detecting pump shell on the right side of the pressurizing piston, two holes for containing a hydraulic switch and a hydraulic accumulator are arranged on the right upper portion of the detecting pump shell, one end of the hydraulic switch is connected with the normally closed detecting switch by the aid of a delay switch, the other end of the hydraulic switch is connected with an alarm lamp, a pressure relief hole is connected to a hydraulic oil cup, a switch hole is connected with a first hydraulic switch, the first hydraulic switch is connected with a motor, and the hydraulic oil cup is communicated with a pressurizing hole by the aid of the hydraulic oil pump. The automatic fault detecting device is simple in structure, safe, reliable and convenient to mount, and can automatically detect faults of the brake oil circuit and give an alarm to prompt that the brake oil circuit needs repair, so that safe driving is ensured.
Description
Technical field
The utility model belongs to a kind of braking automobile detection alarm device.
Background technology
In road traffic accident, happen occasionally because of what the brake fault caused, the major cause that causes these accidents is at ordinary times the inspection maintenance of vehicle inadequate natural endowment not enough and that automobile itself designs to be caused.Such as in brake failure or before losing efficacy because of oil connector is loosening, pipeline rupture, leather cup and reasons such as sealing member damages, piston wear is serious, vapour lock, oil starvation have just existed brake failure or inefficacy potential safety hazard; But navigating mate is not easy timely discovery, or the thought paralysis can not cause enough attention.Because automobile itself does not detect brake fault and warning function, the generation that when needs brake, is easy to cause the accident automatically now.Though automobile has adopted a series of technical safety measuress such as ABS anti-skid brake system now.But these all are ability normal operation under the failure-free situation of brake, itself can not predict fault; In case brake is broken down, they are incompetent too unable when causing brake failure or inefficacy.
Summary of the invention
The purpose of the utility model provides a kind of detection of braking automatically whenever and wherever possible in order to overcome the above problems exactly, finds fault and the automotive brake fluid line fault automatic checkout equipment of reporting to the police in advance.
The technical scheme of the utility model is achieved like this: a kind of automotive brake fluid line fault automatic checkout equipment; The oil pocket 8 that comprise ignition lock 1, brake pedal 3, connect the brake push rod 4 of brake pedal, the piston 5 that connects the brake push rod, columnar brake pump shell 7, brake pump shell inner cavity constitutes, open brake lubricating cup 18, the ABS anti-skid brake system 23 of balance oil hole 6 in the brake pump shell upper, wheel cylinder 9, brake disc 10, dress brake solution; Be characterized in: the normally closed detector switch 2 with its interlock is arranged on top, brake pedal 3 upper ends; Electromagnetic valve 11 is equipped with in oil inlet front in wheel cylinder 9, the left end and the earth polar of the normally closed detector switch 2 of power supply termination of electromagnetic valve 11; Above columnar brake pump shell 7, be close to and be provided with columnar testing pump shell 29, oil pocket 8 in balance oil hole 6 UNICOM's brake pump shells 7 and the detection oil pocket 24 in the testing pump shell 29; The left sides in the testing pump shell 29 are provided with pressurizing piston 19, between the right-hand member of the right of pressurizing piston 19 and testing pump shell 29, are provided with pull back spring 25; On the inwall of the middle part of testing pump shell 29, be provided with right stoping block 26, the top of testing pump shell 29 is provided with oil inlet 20 on the right side of pressurizing piston 19, and oil inlet 20 and top are equipped with between brake lubricating cup 18 bottoms of brake solution and are connected to oil pipe; Have two holes at the upper right quarter of testing pump shell 29 hydraulic efficiency pressure switch 28 and hydraulic accumulator 30 are housed respectively; One end of hydraulic efficiency pressure switch 28 connects the left end of normally closed detector switch 2 through time-delay switch 27; A be informed of a case end of warning lamp 21 of the other end of hydraulic efficiency pressure switch 28, the other end ground connection of alarm lamp 21; On the left end inwall of testing pump shell 29, be provided with left stoping block 22; On the left side of testing pump shell 29, have and three holes that the oil pocket 13 that pressurizes links: relief hole 31, pressurization hole 32, switch hole 33; Relief hole 31 is connected to the hydraulic pressure lubricating cup 17 that hydraulic oil is housed through oil pipe and blowdown valve 16, the left end and the ground connection of the normally closed detector switch 2 of power supply termination of blowdown valve 16; Switch hole 33 connects hydraulic efficiency pressure switch 12, the left end of the normally closed detector switch 2 of a termination of hydraulic efficiency pressure switch 12, an end of another termination motor 14, the other end ground connection of motor 14; The hydraulic oil pump 15 that is driven by motor 14 passes through oil pipe with hydraulic pressure lubricating cup 17 and pressurization hole 32 UNICOMs.
The utility model is simple in structure, and is safe and reliable, is convenient to install, and can detect brake fluid line fault and warning automatically, and prompting will be keeped in repair, and guarantees safety traffic.
Description of drawings
Fig. 1 is the principle of work scheme drawing of the utility model.
Among the figure: 1-ignition lock; 2-normally closed detector switch; 3-brake pedal; 4-brake push rod; 5-piston; 6-balance oil hole; 7-brake pump shell; 8-oil pocket; 9-wheel cylinder; 10-brake disc; 11-electromagnetic valve; 12-hydraulic efficiency pressure switch; 13-pressurization oil pocket; 14-motor; 15-hydraulic oil pump; 16-blowdown valve; 17-hydraulic pressure lubricating cup; 18-brake lubricating cup; 19-pressurizing piston; 20-oil inlet; 21-alarm lamp; 22-left stoping block; 23-ABS anti-skid brake system; 24-detection oil pocket; 25-pull back spring; 26-right stoping block; 27-time-delay switch; 28-hydraulic efficiency pressure switch; 29-testing pump shell; 30-hydraulic accumulator; 31-relief hole; 32-pressurization hole; 33-switch hole.
The specific embodiment
Visible by Fig. 1: the ignition lock 1 among the figure, brake pedal 3, brake push rod 4, piston 5, balance oil hole 6, columnar brake pump shell 7, oil pocket 8, wheel cylinder 9, brake disc 10, brake lubricating cup 18, ABS anti-skid brake system 23 all are originally just to have on the automobile.The ignition lock 1 that could connect with car key connects B+, battery negative post ground connection.
The utility model has the normally closed detector switch 2 with brake pedal 3 interlocks on top, original brake pedal 3 upper ends, normally closed detector switch 2 closures when not touching on the brake pedal 3, and normally closed detector switch 2 breaks off when touching on the brake.Electromagnetic valve 11 is equipped with in oil inlet front in wheel cylinder 9, and electromagnetic valve 11 connects normally closed detector switch 2 and earth polar, when touching on the brake pedal 3, does not have power supply to open oil circuit because of normally closed detector switch 2 breaks off electromagnetic valve 11, closes oil circuit when lifting brake; Above columnar brake pump shell 7, be close to and be provided with columnar testing pump shell 29; Open the detection oil pocket 24 in oil pocket 8 and the testing pump shell 29 in balance oil hole 6 UNICOM's brake pump shells 7 of brake pump shell upper; The left sides in the testing pump shell 29 are provided with pressurizing piston 19, between the right-hand member of the right of pressurizing piston 19 and testing pump shell 29, are provided with pull back spring 25; On the inwall of the middle part of testing pump shell 29, be provided with right stoping block 26, the top of testing pump shell 29 is provided with oil inlet 20 on the right side of pressurizing piston 19, and oil inlet 20 and top are equipped with between brake lubricating cup 18 bottoms of brake solution and are connected to oil pipe; Have two holes at the upper right quarter of testing pump shell 29 hydraulic efficiency pressure switch 28 and hydraulic accumulator 30 are installed respectively; Oil pressure in detecting oil pocket 24 reach maximum oil pressure 70 percent the time hydraulic efficiency pressure switch 28 just break off and connecting, be lower than just connection of hydraulic efficiency pressure switch 28 in 70 percent o'clock; One end of hydraulic efficiency pressure switch 28 connects normally closed detector switch 2 through time-delay switch 27, a be informed of a case end of warning lamp 21 of the other end of hydraulic efficiency pressure switch 28, the other end ground connection of alarm lamp 21.Be provided with spring in the hydraulic accumulator 30 and head on piston, hydraulic accumulator 30 in order to store fluid and energy, is discharged fluid when oil pressure reduces when oil pressure is higher.On the left end inwall of testing pump shell 29, be provided with left stoping block 22; Left stoping block 22 places form pressurization oil pocket 13 in the testing pump shell 29, on the left side of testing pump shell 29, have and three holes that the oil pocket 13 that pressurizes links: relief hole 31, pressurization hole 32, switch hole 33; Relief hole 31 has the hydraulic pressure lubricating cup 17 of hydraulic oil through oil pipe and blowdown valve 16 tippings; Normally closed detector switch 2 of the power supply termination of blowdown valve 16 and ground connection; When touching on the brake pedal 3, because of breaking off blowdown valve 16, normally closed detector switch 2 do not have power supply to open oil circuit, close oil circuit when lifting brake; Switch hole 33 connects hydraulic efficiency pressure switch 12; The normally closed detector switch 2 of one termination of hydraulic efficiency pressure switch 12, an end of another termination motor 14, the other end ground connection of motor 14; When the oil pressure of pressurization oil pocket 13 reaches peak; Hydraulic efficiency pressure switch 12 just breaks off the working power of motor 14, and when being lower than peak, hydraulic efficiency pressure switch 12 is just closed always like the oil pressure of pressurization oil pocket 13; The hydraulic oil pump 15 that motor 14 drives passes through oil pipe with hydraulic pressure lubricating cup 17 and pressurization hole 32 UNICOMs.
Principle of work:
After connecting storage battery with car key closes ignition switch 1, when not touching on the brake pedal 3, normally closed detector switch 2 switchs on, at this moment: 1) electromagnetic valve 11 is because of getting electric oil circuit of closing wheel cylinder 9; 2) blowdown valve 16 is because of must electricly cutting out the oil circuit of 13 of hydraulic pressure lubricating cup 17 and pressurization oil pockets; 3) time-delay switch 27 time closing that picks up counting; 4) hydraulic efficiency pressure switch 12 rotates motor 14 energized.Motor 14 rotating band hydrodynamic pressure oil pumps 15 are interior toward pressurization oil pocket 13 interior pumps oil from hydraulic pressure lubricating cup 17, and along with oil pressure in the oil pocket 13 that pressurizes constantly raise, pressurizing piston 19 moves to right; Pull back spring 25 is compressed, and closes oil inlet 20 earlier, along with pressurizing piston 19 continues to move to right; Detect oil pocket 24 interior oil pressure and continue rising,, make in the oil pocket 8 and also constantly rising of oil pressure in the whole brake fluid line because of the oil pocket 8 of balance oil hole 6 connection bottoms and the detection oil pocket 24 on top; When being shifted to the right to right stoping block 26 places, pressurizing piston 19 stops because of stopping; In this moment oil pocket 8 with detect in the oil pocket 24 and in the whole brake fluid line oil pressure reach peak, the oil pressure in the pressurization oil pocket 13 also reach maximum, hydraulic efficiency pressure switch 12 power cut-offs; Motor 14 stops operating, and hydraulic oil pump 15 just stops to 13 li pump oil of pressurization oil pocket; At this moment; Time-delay switch 27 delay times arrive; Time-delay switch 27 closed energized because the oil pressure of hydraulic efficiency pressure switch 28 in detecting oil pocket 24 reaches at 70 percent o'clock of MTP, that is to say that pressurizing piston 19 also just do not broken off the circuit towards alarm lamp 21 when inconsistent with stoping block 26; Even so time-delay switch 27 has been connected, alarm lamp 21 can be not bright yet.
If brake fluid line is because leakage of oil has appearred in a variety of causes; Or it is, will cause oil pressure to descend, even basic with regard to 70 percent of out of reach MTP because of air, oil starvation are arranged in the oil circuit; When dropping to, oil pressure detects below 70 percent of oil pocket 24 MTPs; The just closed connection alarm lamp 21 of hydraulic efficiency pressure switch 28 is lighted warning, and prompting will be keeped in repair, and guarantees safety traffic.
Behind car key closes ignition switch 1 connection storage battery; When touching on the brake pedal 3; Before brake solution in 5 pairs of oil pockets 8 of piston was exerted pressure, normally closed detector switch 2 just cut off all brakes immediately and detects power supply, and electromagnetic valve 11 is opened oil circuit with blowdown valve 16 because of dead electricity simultaneously.The energy that pull back spring 25 and energy storage 30 store promotes pressurizing piston 19 jointly and is moved to the left rapidly, and the hydraulic oil in the pressurization oil pocket 13 are entered hydraulic pressure lubricating cup 17 rapidly through blowdown valve 16.Because electromagnetic valve 11 has in time been opened oil circuit, adds the play motion and the hydraulic pressure transfer lag factor of brake pedal 3, so brake is had no influence.Oil pressure have reduced and cause hydraulic efficiency pressure switch 12 to be connected in the oil pocket 13 though at this moment pressurize, owing to normally closed detector switch 2 has broken off, so motor 14 can not rotate because of there being electricity.Time-delay switch 27 makes zero because of the non-transformer timing simultaneously.
When lifting brake pedal 3; Just closed all the brake detection power supplys of connecting of normally closed detector switch 2; Electromagnetic valve 11 and blowdown valve 16 be dead electricity and close oil circuit all, and motor 14 beginning rotating band hydrodynamic pressure oil pumps 15 continue pumps oil to be promoted pressurizing piston 19 and move to right, time-delay switch 27 time closing that picks up counting again.
When touching on the brake, wheel cylinder 9 and ABS anti-skid brake system 23 proper function, the brake detecting device of the utility model is inoperative; When not touching on the brake, this detecting device works, and wheel cylinder 9 is inoperative with ABS anti-skid brake system 23.
When killing engine with car key disconnection ignition lock 1, the brake detecting device is not because of there being power supply inoperative yet; Only when running car, do not touch on the brake or engine operation this detecting device that do not brake just works, at this moment inoperative because of ABS anti-skid brake system 23, so be independent of each other.
Claims (1)
1. automotive brake fluid line fault automatic checkout equipment; The oil pocket (8) that comprise ignition lock (1), brake pedal (3), connect the brake push rod (4) of brake pedal, the piston (5) that connects the brake push rod, columnar brake pump shell (7), brake pump shell inner cavity constitutes, open brake lubricating cup (18), the ABS anti-skid brake system (23) of balance oil hole (6) in the brake pump shell upper, wheel cylinder (9), brake disc (10), dress brake solution; It is characterized in that: the normally closed detector switch (2) with its interlock is arranged on top, brake pedal (3) upper end; In the oil inlet front of wheel cylinder (9) electromagnetic valve (11) is housed, the left end and the earth polar of the normally closed detector switch of power supply termination (2) of electromagnetic valve (11); Be close in the top of columnar brake pump shell (7) and be provided with columnar testing pump shell (29), oil pocket (8) in balance oil hole (6) UNICOM's brake pump shell (7) and the interior detection oil pocket (24) of testing pump shell (29); The left side in the testing pump shell (29) is provided with pressurizing piston (19), between the right-hand member of the right of pressurizing piston (19) and testing pump shell (29), is provided with pull back spring (25); On the middle part inwall of testing pump shell (29), be provided with right stoping block (26); Be provided with oil inlet (20) on the top of the right side of pressurizing piston (19) testing pump shell (29), oil inlet (20) and top are equipped with between brake lubricating cup (18) bottom of brake solution and are connected to oil pipe; Have two holes at the upper right quarter of testing pump shell (29) hydraulic efficiency pressure switch (28) and hydraulic accumulator (30) are housed respectively; One end of hydraulic efficiency pressure switch (28) connects the left end of normally closed detector switch (2) through time-delay switch (27); A be informed of a case end of warning lamp (21) of the other end of hydraulic efficiency pressure switch (28), the other end ground connection of alarm lamp (21); On the left end inwall of testing pump shell (29), be provided with left stoping block (22); On the left side of testing pump shell (29), have and three holes that the oil pocket that pressurizes (13) links: relief hole (31), pressurization hole (32), switch hole (33); Relief hole (31) is connected to the hydraulic pressure lubricating cup (17) that hydraulic oil is housed through oil pipe and blowdown valve (16), the left end and the ground connection of the normally closed detector switch of power supply termination (2) of blowdown valve (16); Switch hole (33) connects hydraulic efficiency pressure switch (12), the left end of the normally closed detector switch of a termination (2) of hydraulic efficiency pressure switch (12), an end of another termination motor (14), the other end ground connection of motor (14); The hydraulic oil pump (15) that is driven by motor (14) passes through oil pipe with hydraulic pressure lubricating cup (17) and pressurization hole (32) UNICOM.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200510941U CN202528970U (en) | 2012-02-17 | 2012-02-17 | Automatic fault detecting device for automotive brake oil circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200510941U CN202528970U (en) | 2012-02-17 | 2012-02-17 | Automatic fault detecting device for automotive brake oil circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202528970U true CN202528970U (en) | 2012-11-14 |
Family
ID=47130170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200510941U Expired - Fee Related CN202528970U (en) | 2012-02-17 | 2012-02-17 | Automatic fault detecting device for automotive brake oil circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202528970U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110103856A (en) * | 2018-12-22 | 2019-08-09 | 朱云 | Automobile, train, subway and aircraft find out fault repair method automatically |
-
2012
- 2012-02-17 CN CN2012200510941U patent/CN202528970U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110103856A (en) * | 2018-12-22 | 2019-08-09 | 朱云 | Automobile, train, subway and aircraft find out fault repair method automatically |
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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: 20121114 Termination date: 20150217 |
|
| EXPY | Termination of patent right or utility model |