CN102582594B - Parking brake for open type motor vehicles - Google Patents
Parking brake for open type motor vehicles Download PDFInfo
- Publication number
- CN102582594B CN102582594B CN201210063829.7A CN201210063829A CN102582594B CN 102582594 B CN102582594 B CN 102582594B CN 201210063829 A CN201210063829 A CN 201210063829A CN 102582594 B CN102582594 B CN 102582594B
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- ratchet
- switch
- pedal
- key
- pulse switch
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Abstract
A parking brake for open type motor vehicles comprises a pulse switch mechanism, a follow-up pedal mechanism, a shifting fork mechanism and a magnetically-controlled pawl mechanism, wherein the follow-up pedal mechanism is combined with shifting fork mechanism. The pulse switch mechanism comprises a pulse switch key handle, a tension spring, a swing arm, keys and a connector bar, wherein the tension spring, the swing arm, the keys and the connector bar are arranged in a switch shell. The follow-up pedal mechanism comprises a parking brake pedal and a pedal rod, the upper end of the pedal rod is provided with a shifting form with a groove, and the switch key handle of the pulse switch mechanism is inserted in the groove of the shifting fork. The magnetically-controlled pawl mechanism comprises an electromagnet and a pawl, and the electromagnet is respectively connected with a motor vehicle key switch, a thyristor, a state switch and a pulse switch. The parking brake is simple in structure, electronic devices are added based on mechanical braking, an original mechanical structure is simplified, electromechanical integration is realized, the size of the brake is reduced, cost is reduced, and the service life of products is prolonged.
Description
Technical field
The present invention relates to a kind of brake equipment, particularly a kind of parking brake for open type motor vehicles.
Background technology
Parking Brake is the requisite parking safety device of self-propelled vehicle, before chaufeur leaves vehicle, Parking Brake must be strained, and locks car door, with anti-running, or is moved by people.For non-enclosed self-propelled vehicle as three wheeled motor car, scenic spot sightseeing bus, area under one's jurisdiction servicer, field vehicle, open form sanitation cart, open form scout vehicle etc.This class self-propelled vehicle, because being opens wide or semi-open-type design, parking brake on chaufeur parking post-tensioning, implements braking during standstill, leave after vehicle, once the braking during standstill of non-steerman freeing vehicle, hidden danger that will formation accident.
Summary of the invention
The present invention be directed to the defect existing in background technology, provide a kind of simple in structure, electromechanical integration to combine and realize the parking brake for open type motor vehicles of automobile braking.
The technical scheme that realizes above-mentioned purpose employing is: a kind of parking brake for open type motor vehicles, comprise pulse switch mechanism, the pedal gear of combining and shifting fork mechanism, magnetic control detent mechanism, wherein:
A, pulse switch mechanism comprise extension spring, swing arm, key and the line bank of pulse switch key lever and switch case inside; The end of swing arm and key is provided with contact, and key is connected with on & off switch;
B, pedal gear comprise braking during standstill pedal and pedal-rod, and the top of pedal-rod is sleeved on ratchet shaft, and the torque spring being sleeved on ratchet shaft is connected with spring detent with ratchet pin respectively; The upper end of pedal-rod is the shift fork with groove, and the switch key lever of pulse switch mechanism is inserted in the groove of shift fork;
C, magnetic control detent mechanism comprise electromagnet and ratchet, and electromagnet is connected with ratchet one end by being set with the pull bar of thrust spring, and the end of ratchet and mode switch touch, and the other end apical grafting of ratchet is on ratchet;
One end clamping of the top of d, described ratchet and brake cable, this brake cable is movably arranged on base plate by fixed support, and the other end of brake cable is fixedly connected with the pull bar of brake shoes;
E, electromagnet are connected with motor vehicle key switch, silicon control, mode switch and pulse switch respectively, form electronic circuit.
In pulse switch mechanism, the lower surface of the end of key is that key contact, upper surface are insulator.
The shift fork of pedal-rod upper end is with intermittence beat transmission pulse switch and ratchet.
Electronic circuit moves by electromagnetic control ratchet.
Compared with prior art, this brake structural disclosed in this invention is simple, on the basis of mechanical braking, has injected electronics package, simplify original physical construction, realized electromechanical, dwindled the volume of drg, reduce costs, improve the service life of product.
Accompanying drawing explanation
Fig. 1 is integral structure schematic diagram of the present invention.
The structural representation of Tu2Wei pulse switch mechanism.
Fig. 3 is control path schematic diagram of the present invention.
Fig. 4 is structural representation after pedal force of the present invention.
Fig. 5 is structural representation after the invention process parking.
In figure: braking during standstill pedal 1, pedal-rod 2, shift fork 3, spring detent 4, screw 5, torque spring 6 are adjusted in parking bar position, ratchet shaft 7, ratchet pin 8, ratchet 9, ratchet 10, brake cable draw-in groove 11, brake cable 12, pawl axis 13, brake cable is adjusted screw 14, fixed support 15, mode switch 16, electromagnet 17, pulse switch 18, pulse switch key lever 19, base plate 20, thrust spring 21, pull bar 22, insulator 23, switch housing 24, line bank 25, extension spring 26, swing arm rotating shaft 27, swing arm contact 28, key contact 29, key axle 30.
The specific embodiment
This Parking Brake disclosed in this invention is electromechanical integrated product, is applicable to open type motor vehicles braking.
Referring to accompanying drawing 1, this parking brake for open type motor vehicles, comprises pulse switch mechanism, the servo-actuated pedal gear of combining and shifting fork mechanism, magnetic control detent mechanism.
A, pulse switch mechanism comprise extension spring 26, swing arm, key and the line bank 25 of pulse switch key lever 19 and switch case 24 inside.The end of swing arm and key is provided with contact, i.e. swing arm contact 28 and key contact 29, and the other end of key is connected by key axle 30 with switch key lever 19.Swing arm comprises that wherein one end of a monomer is connected with extension spring 26 by two hinged joint monomers formations of swing arm rotating shaft 27, and the other end of another monomer is provided with swing arm contact 28, and swing arm tip side can rotate around swing arm rotating shaft 27.The setting corresponding to key contact 29 of this swing arm contact 28.The lower surface of the end of key is that key contact 29, upper surface are insulator 23.When key contact 29 contacts with swing arm contact 28, switch is closed, produces pulse.
Its principle of work: referring to accompanying drawing 2, when switch key lever 19 is upwards stirred in the direction of arrows, key contact 29 contacts with swing arm contact 28, now switch is closed, and switch key lever 19 is rotated further and reaches desired location, and two contacts are separated, original position is got back in swing arm contact 28 under the effect of extension spring 26, and switch disconnects; Because 19 actions of switch key lever are very fast, so the closing period of switch is very short, therefore be called pulse switch.When switch key lever 19 returns, though key contact 29 contacts with rocker arm contact 28, because key contact upper end is insulator 23, do not produce pulse.
B, servo-actuated pedal gear comprise braking during standstill pedal 1 and pedal-rod 2, and the top of pedal-rod 2 is sleeved on ratchet shaft 7, and the two is hinged, and the torque spring 6 being sleeved on ratchet shaft 7 is connected with spring detent 4 with ratchet pin 8 respectively.Torque spring 6 one end and spring detent 4 sockets, the other end and ratchet pin 8 closely touch.The upper end of pedal-rod 2 is the shift fork 3 with groove, and the switch key lever 19 of pulse switch mechanism is inserted in the groove of shift fork 3.Shifting fork mechanism is the mode of stepping transmission, and in the process of rotating around ratchet shaft 7 at pedal-rod 2, shift fork is in the mode of intermittently-driving, successively toggle switch key lever 19 and ratchet pin 8.The end that screw 5 is adjusted in parking bar position contacts with pedal-rod 2, can adjust its initial position, plays position-limiting action.
C, magnetic control detent mechanism comprise electromagnet 17 and ratchet 10, and electromagnet 17 is connected with ratchet 10 one end by being set with the pull bar 22 of thrust spring 21, and the end of ratchet 10 and mode switch 16 touch, and the other end apical grafting of ratchet 10 is on the gear teeth of ratchet 9.
One end clamping of the top of d, described ratchet 9 and brake cable 12, this brake cable 12 is arranged on base plate 20 by fixed support 15 is fastening, adjusts screw 14 change brake efficiency by brake cable.The upper end of ratchet is provided with brake cable draw-in groove 11, and one end of brake cable 12 is installed in this draw-in groove.The other end of brake cable 12 is connected with automobile braking shoes pull bar.
The principle of work of magnetic control detent mechanism is: as shown in accompanying drawing 4-5, state shown in figure is the state before parking, when parking, firmly trample braking during standstill pedal 1, pedal-rod 2 is clockwise rotated around ratchet shaft 7, at this moment the shift fork 3 of pedal-rod 2 upper ends, first upwards stirs the switch key lever 19 of pulse switch, makes the instantaneous closure of switch; Therefore the shift fork 3 on pedal-rod 2 has a segment distance to belong to intermittently-driving design with ratchet pin 8, after pulse switch key lever 19 puts in place, shift fork 3 starts again to stir ratchet pin 8, and ratchet 9 is rotated.Ratchet 9 upper ends connect parking cable wire 12, and under the effect of torque spring and ratchet pin, ratchet is under the effect of shift fork moment, and corner increases thereupon, and parking moment will increase thereupon.
The initial position of the ratchet gear teeth is provided with groove, so before parking, within the front end of ratchet 10 is inserted in groove, ratchet 10 can swing around pawl axis 13.Ratchet 9 clockwise rotates gradually under the effect of treadle shift fork, ratchet is moved up along ratchet recesses slope, and the other end of ratchet is connected with the pull bar 22 of electromagnet 17, and pull bar 22 is under the promotion of electromagnet thrust spring 21, ratchet locks ratchet constantly, and ratchet can not be turned round.Unclamp parking pedal, cable wire still keeps tension, realizes parking.
E, electromagnet are connected with motor vehicle key switch, silicon control, mode switch and pulse switch respectively, form electronic circuit, also comprise the links such as indicator lamp, flywheel diode, line bank in this electronic circuit.This electromagnetism circuit moves by electromagnetic control ratchet.In implementing the process of parking, the action of ratchet changes mode switch 16 in circuit, and mode switch is closed, and A point transfers high level to by low level, and parking indicator lamp is bright to be opened.Fig. 1, Fig. 4 and Fig. 5 are three kinds of states of Parking Brake.
When needs are removed braking during standstill, only need again jam on parking pedal, at this moment shift fork makes again pulse switch 18 closures, now the level signal of pulse switch 18 and the level signal of mode switch, form logical relation, make silicon control triggering and conducting, electromagnet obtains electric, pulls ratchet downwards, ratchet is removed the constraint to ratchet, along with reducing of parking pedal pressing force, ratchet conter clockwise under the effect of brake cable turns to initial position, realizes and removes braking during standstill.Because brake off is to complete by electromagnet tractive ratchet, so after key switch is closed, car load power-off, cannot remove braking during standstill.So the present invention can really play the object of safe parking to open type motor vehicles.
As shown in Figure 3, circuit working principle of the present invention: key switch (K1) closure, when parking, parking pedal force, shift fork starts to rotate, and (K3) moment is closed, now because (A) point is still in low level, although (K3) action does not have pulse to produce.After parking realizes, mode switch (K2) closed (A) point is high level, and LED light (D1) conducting, represents parking state; When removing braking during standstill, (A) in high level, parking pedal is again stressed, shift fork rotates again, (K3) moment is closed, produce impulse singla and trigger silicon control (CTR) conducting by resistance (R2), electromagnet obtains electric, produces magnetic force and draws ratchet by pull bar, discharge ratchet, ratchet is got back to initial position, and braking during standstill is removed, and mode switch (K2) disconnects, silicon control turn-offs, induced current in electromagnet, discharges by flywheel diode (D2), indicates the LED light cut-off of parking state simultaneously.The working current of electromagnet is that 1A break-make is realized by silicon control, therefore (K2), (K3) switch, and in the process of switching, the about 5mA of electric current, discharge off spark, circuit safety is reliable.
Claims (3)
1. a parking brake for open type motor vehicles, comprise pulse switch mechanism, the pedal gear of combining and shifting fork mechanism, magnetic control detent mechanism, pedal gear comprises braking during standstill pedal and pedal-rod, the top of pedal-rod is sleeved on ratchet shaft, and the torque spring being sleeved on ratchet shaft is connected with spring detent with ratchet pin respectively; It is characterized in that,
A, pulse switch mechanism comprise extension spring, swing arm, key and the line bank of pulse switch key lever and switch case inside; The end of swing arm and key is provided with contact, and key is connected with switch key lever; In described pulse switch mechanism, the lower surface of the end of key is that key contact, upper surface are insulator;
The upper end of b, pedal-rod is the shift fork with groove, and the switch key lever of pulse switch mechanism is inserted in the groove of shift fork;
C, magnetic control detent mechanism comprise electromagnet and ratchet, and electromagnet is connected with ratchet one end by being set with the pull bar of thrust spring, and the end of ratchet and mode switch touch, and the other end apical grafting of ratchet is on ratchet;
One end clamping of the top of d, ratchet and brake cable, this brake cable is movably arranged on base plate by fixed support, and the other end of brake cable is fixedly connected with the pull bar of brake shoes;
E, electromagnet are connected with motor vehicle key switch, silicon control, mode switch and pulse switch respectively, form electronic circuit.
2. parking brake for open type motor vehicles according to claim 1, is characterized in that, the shift fork of described pedal-rod upper end is with intermittence beat transmission pulse switch and ratchet.
3. parking brake for open type motor vehicles according to claim 1, is characterized in that, described electronic circuit moves by electromagnetic control ratchet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210063829.7A CN102582594B (en) | 2012-03-13 | 2012-03-13 | Parking brake for open type motor vehicles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210063829.7A CN102582594B (en) | 2012-03-13 | 2012-03-13 | Parking brake for open type motor vehicles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102582594A CN102582594A (en) | 2012-07-18 |
| CN102582594B true CN102582594B (en) | 2014-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210063829.7A Expired - Fee Related CN102582594B (en) | 2012-03-13 | 2012-03-13 | Parking brake for open type motor vehicles |
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| Country | Link |
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| CN (1) | CN102582594B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106429940A (en) * | 2016-08-30 | 2017-02-22 | 江苏泰隆减速机股份有限公司 | Speed reducer for opening locking device through pedal |
| CN115384468B (en) * | 2022-09-05 | 2023-12-12 | 浙江极氪智能科技有限公司 | Braking system and vehicle |
| CN115384467B (en) * | 2022-09-05 | 2023-11-17 | 浙江极氪智能科技有限公司 | Braking system and vehicle |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1222211A (en) * | 1967-02-13 | 1971-02-10 | Syunichi Takada | Apparatus for locking and unlocking a vehicle hand-brake |
| DE3116118A1 (en) * | 1981-04-23 | 1982-12-30 | Audi Nsu Auto Union Ag, 7107 Neckarsulm | Automatic adjusting device for a clutch-operating control on motor vehicles |
| CN1032138A (en) * | 1988-10-22 | 1989-04-05 | 梁助兴 | Be convenient to the motor drive system of uphill starting |
| CN1375378A (en) * | 2002-04-19 | 2002-10-23 | 戚道易 | Driving method and device for feeding mechanism |
| CN201065114Y (en) * | 2007-06-28 | 2008-05-28 | 比亚迪股份有限公司 | Foot operated brake device for parking vehicle |
| CN101439712A (en) * | 2008-12-09 | 2009-05-27 | 奇瑞汽车股份有限公司 | Braking pedal mechanism |
| CN102328586A (en) * | 2011-07-21 | 2012-01-25 | 温志朝 | Motor vehicle capable of being prevented from slipping reversely in process of starting on slope |
-
2012
- 2012-03-13 CN CN201210063829.7A patent/CN102582594B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1222211A (en) * | 1967-02-13 | 1971-02-10 | Syunichi Takada | Apparatus for locking and unlocking a vehicle hand-brake |
| DE3116118A1 (en) * | 1981-04-23 | 1982-12-30 | Audi Nsu Auto Union Ag, 7107 Neckarsulm | Automatic adjusting device for a clutch-operating control on motor vehicles |
| CN1032138A (en) * | 1988-10-22 | 1989-04-05 | 梁助兴 | Be convenient to the motor drive system of uphill starting |
| CN1375378A (en) * | 2002-04-19 | 2002-10-23 | 戚道易 | Driving method and device for feeding mechanism |
| CN201065114Y (en) * | 2007-06-28 | 2008-05-28 | 比亚迪股份有限公司 | Foot operated brake device for parking vehicle |
| CN101439712A (en) * | 2008-12-09 | 2009-05-27 | 奇瑞汽车股份有限公司 | Braking pedal mechanism |
| CN102328586A (en) * | 2011-07-21 | 2012-01-25 | 温志朝 | Motor vehicle capable of being prevented from slipping reversely in process of starting on slope |
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| CN102582594A (en) | 2012-07-18 |
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