CN105774775A - Vehicle door opening and parking brake control device - Google Patents
Vehicle door opening and parking brake control device Download PDFInfo
- Publication number
- CN105774775A CN105774775A CN201610273154.7A CN201610273154A CN105774775A CN 105774775 A CN105774775 A CN 105774775A CN 201610273154 A CN201610273154 A CN 201610273154A CN 105774775 A CN105774775 A CN 105774775A
- Authority
- CN
- China
- Prior art keywords
- mouth
- valve
- parking brake
- push rod
- oil
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T7/00—Brake-action initiating means
- B60T7/12—Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
- B60T13/66—Electrical control in fluid-pressure brake systems
- B60T13/68—Electrical control in fluid-pressure brake systems by electrically-controlled valves
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Regulating Braking Force (AREA)
- Braking Systems And Boosters (AREA)
Abstract
The invention provides a vehicle door opening and parking brake control device which comprises a hydraulic pump, an oil tank, a parking hydraulic cylinder, a parking brake, a parking brake valve, a filter, a safety valve, a mandril idler wheel valve, an electromagnetic directional valve, an air pocket and a control mechanism, wherein a mandril of the mandril idler wheel valve is connected with a door of a vehicle; an air inlet P of the mandril idler wheel valve is connected with the air pocket, and an execution port A of the mandril idler wheel valve is connected with an air control port A of the control mechanism; the control mechanism is connected with a wiring end of the electromagnetic directional valve; an oil inlet P of the electromagnetic directional valve is connected with an oil outlet of the hydraulic pump; an execution port A of the electromagnetic directional valve is connected with an oil inlet P of the parking brake valve, and an execution port A of the parking brake valve is connected with a rod cavity of the parking hydraulic cylinder; an oil return port T of the electromagnetic directional valve and an oil return port T of the parking brake valve are both connected with the oil tank. The vehicle door opening and parking brake control device is capable of ensuring that the vehicle can automatically perform parking brake in a situation that the parking brake valve is not pulled up but the door is opened.
Description
Technical field
The present invention relates to opening door of vehicle stopping brake and control device.
Background technology
Vehicle is the means of transport that people use, when vehicle uses, open the door again after generally requiring driver to draw stopping brake and get off, China's Authorization Notice No. is the parking brake system that CN203819220U utility model patent description discloses a kind of underground mine use towed vehicle, including fuel tank 1, filter 2, hydraulic pump 3, relief valve 4, tractor stopping brake valve 5, tractor shut-down hydraulic cylinder 6, tractor parking brake 7, by drawing tractor stopping brake valve 5 to make tractor shut-down hydraulic cylinder 6 action realize the braking of tractor parking brake 7, but often occurring people to open the door in practice does not draw tractor stopping brake valve 5 to make vehicle not have stopping brake when getting off, if so vehicle will cause security incident on ramp.
Summary of the invention
It is an object of the invention to propose a kind of do not draw stopping brake valve but just have after opening door of vehicle stopping brake opening door of vehicle stopping brake control device.
For reaching above-mentioned purpose, the present invention adopts the following technical scheme that:
A kind of opening door of vehicle stopping brake controls device, including hydraulic pump, fuel tank, shut-down hydraulic cylinder, parking brake, stopping brake valve, filter and relief valve, parking brake includes moving plate and still, described hydraulic pump is connected on the power taking mouth of the change speed gear box of vehicle, the oil-in of hydraulic pump is connected with fuel tank by filter, and the described piston rod of shut-down hydraulic cylinder is connected with the moving plate of parking brake；Its innovative point is in that:
Also include push rod roller valve, solenoid directional control valve, gas bag, and controlling organization, the push rod of described push rod roller valve and the car door of vehicle connect, the air inlet P mouth of push rod roller valve is connected with gas bag, the mouth A mouth that performs of push rod roller valve is connected with the gas control mouth A mouth of controlling organization, controlling organization is connected with the terminals of solenoid directional control valve, the oil inlet P mouth of solenoid directional control valve is connected with the oil-out of hydraulic pump, the mouth A mouth that performs of solenoid directional control valve is connected with the oil inlet P mouth of stopping brake valve, the mouth A mouth that performs of stopping brake valve is connected with the rod chamber of shut-down hydraulic cylinder, the oil return inlet T mouth of described solenoid directional control valve and the oil return inlet T mouth of stopping brake valve are all connected with fuel tank.
Described controlling organization includes power supply and air control switch, and the mouth A mouth that performs of described push rod roller valve is connected with the gas control mouth A mouth of air control switch, and the electrical signal of air control switch is connected with the terminals of solenoid directional control valve by power supply.
Described controlling organization includes pressure transducer and master controller, the mouth A mouth that performs of described push rod roller valve is connected with the gas control mouth A mouth of pressure transducer, the electrical signal of pressure transducer is connected with master controller, and master controller is connected with the terminals of solenoid directional control valve.
Being provided with drainback passage between oil-out and the fuel tank of described hydraulic pump, relief valve is arranged in this drainback passage.
The present invention has following good effect: is connected with car door by push rod roller valve and can realize vehicle and do not draw stopping brake valve but the rear vehicle of getting off of opening the door can have stopping brake voluntarily, when not drawing stopping brake valve after stopping, vehicle will not cause security incident because not having stopping brake.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the embodiment of the present invention one；
Fig. 2 is the schematic diagram of the embodiment of the present invention two.
Detailed description of the invention
Embodiment 1
A kind of opening door of vehicle stopping brake controls device, including hydraulic pump 1, fuel tank 5, shut-down hydraulic cylinder 6, parking brake 7, stopping brake valve 10, filter 11 and relief valve 12, parking brake 7 includes moving plate 7-1 and still 7-2, described hydraulic pump 1 is connected on the power taking mouth of the change speed gear box of vehicle, the oil-in of hydraulic pump 1 is connected with fuel tank 5 by filter 11, and the piston rod 6-1 of described shut-down hydraulic cylinder 6 is connected with the moving plate 7-1 of parking brake 7；
Also include push rod roller valve 2, solenoid directional control valve 3, gas bag 4, power supply 8 and air control switch 9, the described push rod 2-1 of push rod roller valve 2 and the car door 100 of vehicle connect, the air inlet P mouth of push rod roller valve 2 is connected with gas bag 4, execution mouth A mouth and the air control switch of push rod roller valve 2) gas control mouth A mouth be connected, the electrical signal of air control switch 9 is connected with the terminals of solenoid directional control valve 3 by power supply 8, the oil inlet P mouth of solenoid directional control valve 3 is connected with the oil-out of hydraulic pump 1, the mouth A mouth that performs of solenoid directional control valve 3 is connected with the oil inlet P mouth of stopping brake valve 10, the mouth A mouth that performs of stopping brake valve 10 is connected with the rod chamber of shut-down hydraulic cylinder 6, the oil return inlet T mouth of described solenoid directional control valve 3 and the oil return inlet T mouth of stopping brake valve 10 are all connected with fuel tank 5.
Being provided with drainback passage between oil-out and the fuel tank 5 of described hydraulic pump 1, relief valve 12 is arranged in this drainback passage.
It is simple that this opening door of vehicle stopping brake controls apparatus structure.
Embodiment 2
The difference of embodiment 2 and embodiment 1 is: the power supply 8 in embodiment 1 and air control switch 9 change into pressure transducer 14 and master controller 15, and the mouth A mouth that performs of described push rod roller valve 2 is connected with the gas control mouth A mouth of pressure transducer 14, the electrical signal of pressure transducer 14 is connected with master controller 15, and master controller 15 is connected with the terminals of solenoid directional control valve 3.
This opening door of vehicle stopping brake controls device can connect alarm etc., and therefore function is many.
nullEmbodiment 1 work process is as follows: as driver actuation，Electromotor works and drives hydraulic pump 1 to work，After driver closes entrance door，The push rod 2-1 indentation of push rod roller valve 2，The air inlet P mouth of push rod roller valve 2 communicates with performing mouth A mouth，Pressed gas enters the gas control mouth A of air control switch 9 from gas bag 4 through push rod roller valve 2，Air control switch 9 is made to close，The terminals of solenoid directional control valve 3 obtain electric，At this moment the oil inlet P mouth of solenoid directional control valve 3 communicates with performing mouth A，Now not yet draw stopping brake valve 10，The oil inlet P mouth of stopping brake valve 10 communicates with performing mouth A mouth，Owing to hydraulic pump 1 has started to work，Pressure oil in hydraulic pump 1 enters the rod chamber of shut-down hydraulic cylinder 6 through solenoid directional control valve 3 and stopping brake valve 10，Shut-down hydraulic cylinder 6 overcomes the resistance of spring to make the moving plate 71 in parking brake 7 separate with still 72 under the effect of pressure oil，Vehicle is not braking and can drive a vehicle.
When driver need to be stopped, draw stopping brake valve 10, the execution mouth A mouth making stopping brake valve 10 communicates with oil return inlet T mouth, the pressure oil of the rod chamber of shut-down hydraulic cylinder 6 returns to fuel tank 5, shut-down hydraulic cylinder 6 makes the moving plate 7-1 in parking brake 7 be combined with still 7-2 in the effect of spring force, and vehicle realizes stopping brake.
nullWhen driver need to be stopped，By engine misses but forget to draw stopping brake valve 10 just to open the door and get off，The push rod 2-1 of push rod roller valve 2 stretches out，The air inlet P mouth of push rod roller valve 2 is not communicated with performing mouth A mouth，Pressed gas can not enter the gas control mouth A of air control switch 9 from gas bag 4 through push rod roller valve 2，Air control switch 9 is made to open，The terminals dead electricity of solenoid directional control valve 3，The execution mouth A mouth of solenoid directional control valve 3 communicates with oil return inlet T mouth，Owing to now not yet drawing stopping brake valve 10，The oil inlet P mouth of stopping brake valve 10 communicates with performing mouth A mouth，The pressure oil of the rod chamber of shut-down hydraulic cylinder 6 returns to fuel tank through parking brake valve 10 from the execution mouth A mouth of solenoid directional control valve 3，Shut-down hydraulic cylinder 6 makes the moving plate 7-1 in parking brake 7 be combined with still 7-2 in the effect of spring force，Vehicle realizes stopping brake.If at this moment driver closes entrance door again, owing to electromotor is flame-out, hydraulic pump 1 no longer works, pressure oil can not be produced, so there will not be pressure oil to enter shut-down hydraulic cylinder 6, shut-down hydraulic cylinder 6 makes the moving plate 71 in parking brake 7 be combined with still 72 in the effect of spring force, and vehicle remains at parking brake condition.
nullEmbodiment 2 work process is as follows: as driver actuation，Electromotor works and drives hydraulic pump 1 to work，After driver closes entrance door，The push rod 2-1 indentation of push rod roller valve 2，The air inlet P mouth of push rod roller valve 2 communicates with performing mouth A mouth，Pressed gas enters pressure transducer 14 from gas bag 4 through push rod roller valve 2，Pressure transducer 14 has the signal of telecommunication and passes to master controller 15，Master controller 15 controls the terminals of solenoid directional control valve 3 and obtains electric，At this moment the oil inlet P mouth of solenoid directional control valve 3 communicates with performing mouth A，Now not yet draw stopping brake valve 10，The oil inlet P mouth of stopping brake valve 10 communicates with performing mouth A mouth，Owing to hydraulic pump 1 has started to work，Pressure oil in hydraulic pump 1 enters the rod chamber of shut-down hydraulic cylinder 6 through solenoid directional control valve 3 and stopping brake valve 10，Shut-down hydraulic cylinder 6 overcomes the resistance of spring to make the moving plate 71 in parking brake 7 separate with still 72 under the effect of pressure oil，Vehicle is not braking and can drive a vehicle.
When driver need to be stopped, draw stopping brake valve 10, the execution mouth A mouth making stopping brake valve 10 communicates with oil return inlet T mouth, the pressure oil of the rod chamber of shut-down hydraulic cylinder 6 returns to fuel tank 5, shut-down hydraulic cylinder 6 makes the moving plate 7-1 in parking brake 7 be combined with still 7-2 in the effect of spring force, and vehicle realizes stopping brake.
nullWhen driver need to be stopped，By engine misses but forget to draw stopping brake valve 10 just to open the door and get off，The push rod 2-1 of push rod roller valve 2 stretches out，The air inlet P mouth of push rod roller valve 2 is not communicated with performing mouth A mouth，Pressed gas can not enter pressure transducer 14 from gas bag 4 through push rod roller valve 2，Pressure transducer 14 does not have the signal of telecommunication to pass to master controller 15，Master controller 15 can not control the terminals of solenoid directional control valve 3 and obtain electric，The execution mouth A mouth of solenoid directional control valve 3 communicates with oil return inlet T mouth，Owing to now not yet drawing stopping brake valve 10，The oil inlet P mouth of stopping brake valve 10 communicates with performing mouth A mouth，The pressure oil of the rod chamber of shut-down hydraulic cylinder 6 returns to fuel tank through parking brake valve 10 from the execution mouth A mouth of solenoid directional control valve 3，Shut-down hydraulic cylinder 6 makes the moving plate 7-1 in parking brake 7 be combined with still 7-2 in the effect of spring force，Vehicle realizes stopping brake.If at this moment driver closes entrance door again, owing to electromotor is flame-out, hydraulic pump 1 no longer works, pressure oil can not be produced, so there will not be pressure oil to enter shut-down hydraulic cylinder 6, shut-down hydraulic cylinder 6 makes the moving plate 71 in parking brake 7 be combined with still 72 in the effect of spring force, and vehicle remains at parking brake condition.
Claims (4)
1. an opening door of vehicle stopping brake controls device, including hydraulic pump (1), fuel tank (5), shut-down hydraulic cylinder (6), parking brake (7), stopping brake valve (10), filter (11) and relief valve (12), parking brake (7) includes moving plate (7-1) and still (7-2), described hydraulic pump (1) is connected on the power taking mouth of the change speed gear box of vehicle, the oil-in of hydraulic pump (1) is connected with fuel tank (5) by filter (11), the piston rod (6-1) of described shut-down hydraulic cylinder (6) is connected with the moving plate (7-1) of parking brake (7)；
nullIt is characterized in that: also include push rod roller valve (2)、Solenoid directional control valve (3)、Gas bag (4)、With controlling organization (13)，The push rod (2-1) of described push rod roller valve (2) and the car door (100) of vehicle connect，The air inlet P mouth of push rod roller valve (2) is connected with gas bag (4)，The execution mouth A mouth of push rod roller valve (2) is connected with the gas control mouth A mouth of controlling organization (13)，Controlling organization (13) is connected with the terminals of solenoid directional control valve (3)，The oil inlet P mouth of solenoid directional control valve (3) is connected with the oil-out of hydraulic pump (1)，The execution mouth A mouth of solenoid directional control valve (3) is connected with the oil inlet P mouth of stopping brake valve (10)，The execution mouth A mouth of stopping brake valve (10) is connected with the rod chamber of shut-down hydraulic cylinder (6)，The oil return inlet T mouth of described solenoid directional control valve (3) and the oil return inlet T mouth of stopping brake valve (10) are all connected with fuel tank (5).
2. opening door of vehicle stopping brake according to claim 1 controls device, it is characterized in that: described controlling organization (13) includes power supply (8) and air control switch (9), the execution mouth A mouth of described push rod roller valve (2) is connected with the gas control mouth A mouth of air control switch (9), and the electrical signal of air control switch (9) is connected with the terminals of solenoid directional control valve (3) by power supply (8).
3. opening door of vehicle stopping brake according to claim 1 controls device, it is characterized in that: described controlling organization (13) includes pressure transducer (14) and master controller (15), the execution mouth A mouth of described push rod roller valve (2) is connected with the gas control mouth A mouth of pressure transducer (14), the electrical signal of pressure transducer (14) is connected with master controller (15), and master controller (15) is connected with the terminals of solenoid directional control valve (3).
4. the opening door of vehicle stopping brake according to claim 1-3 controls device, it is characterised in that: being provided with drainback passage between oil-out and the fuel tank (5) of described hydraulic pump (1), relief valve (12) is arranged in this drainback passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610273154.7A CN105774775A (en) | 2016-04-28 | 2016-04-28 | Vehicle door opening and parking brake control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610273154.7A CN105774775A (en) | 2016-04-28 | 2016-04-28 | Vehicle door opening and parking brake control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105774775A true CN105774775A (en) | 2016-07-20 |
Family
ID=56399764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610273154.7A Pending CN105774775A (en) | 2016-04-28 | 2016-04-28 | Vehicle door opening and parking brake control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105774775A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106089453A (en) * | 2016-07-29 | 2016-11-09 | 王付民 | The exhaust brake flameout system of vehicle |
| CN106194442A (en) * | 2016-08-02 | 2016-12-07 | 朱明德 | The throttle of a kind of vehicle, gear, exhaust brake combination control method |
| CN106240540A (en) * | 2016-08-29 | 2016-12-21 | 徐工集团工程机械股份有限公司科技分公司 | A kind of automatic breaking system |
| CN107323445A (en) * | 2017-06-19 | 2017-11-07 | 中国煤炭科工集团太原研究院有限公司 | A kind of brake hard protection device |
| CN108177640A (en) * | 2018-01-30 | 2018-06-19 | 袁菊花 | The stop device of vehicle |
| CN110254411A (en) * | 2019-06-26 | 2019-09-20 | 刘剑 | The stopping brake control device of vehicle |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5533795A (en) * | 1994-08-09 | 1996-07-09 | Brooks; Louie J. | Brake safety system for vehicles with seat and door control |
| CN102358281A (en) * | 2011-08-03 | 2012-02-22 | 石家庄中煤装备制造股份有限公司 | Parking braking protection system |
| CN103879394A (en) * | 2014-03-28 | 2014-06-25 | 常州科研试制中心有限公司 | Stopping brake system of trailer used under coal mine shaft |
| CN204355025U (en) * | 2014-11-21 | 2015-05-27 | 常州科研试制中心有限公司 | Railless free-wheeled vehicle power cutoff automatic parking system |
| CN204354837U (en) * | 2014-11-21 | 2015-05-27 | 常州科研试制中心有限公司 | Railless free-wheeled vehicle enabling flameout control device |
| CN105346537A (en) * | 2015-12-01 | 2016-02-24 | 常州轻工职业技术学院 | United start-up, extinguishment and manual brake control system for vehicle |
-
2016
- 2016-04-28 CN CN201610273154.7A patent/CN105774775A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5533795A (en) * | 1994-08-09 | 1996-07-09 | Brooks; Louie J. | Brake safety system for vehicles with seat and door control |
| CN102358281A (en) * | 2011-08-03 | 2012-02-22 | 石家庄中煤装备制造股份有限公司 | Parking braking protection system |
| CN103879394A (en) * | 2014-03-28 | 2014-06-25 | 常州科研试制中心有限公司 | Stopping brake system of trailer used under coal mine shaft |
| CN204355025U (en) * | 2014-11-21 | 2015-05-27 | 常州科研试制中心有限公司 | Railless free-wheeled vehicle power cutoff automatic parking system |
| CN204354837U (en) * | 2014-11-21 | 2015-05-27 | 常州科研试制中心有限公司 | Railless free-wheeled vehicle enabling flameout control device |
| CN105346537A (en) * | 2015-12-01 | 2016-02-24 | 常州轻工职业技术学院 | United start-up, extinguishment and manual brake control system for vehicle |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106089453A (en) * | 2016-07-29 | 2016-11-09 | 王付民 | The exhaust brake flameout system of vehicle |
| CN106089453B (en) * | 2016-07-29 | 2019-08-09 | 湖北正兴设备制造有限公司 | The exhaust brake flameout system of vehicle |
| CN106194442A (en) * | 2016-08-02 | 2016-12-07 | 朱明德 | The throttle of a kind of vehicle, gear, exhaust brake combination control method |
| CN106240540A (en) * | 2016-08-29 | 2016-12-21 | 徐工集团工程机械股份有限公司科技分公司 | A kind of automatic breaking system |
| CN107323445A (en) * | 2017-06-19 | 2017-11-07 | 中国煤炭科工集团太原研究院有限公司 | A kind of brake hard protection device |
| CN107323445B (en) * | 2017-06-19 | 2023-09-12 | 中国煤炭科工集团太原研究院有限公司 | Emergency braking protection device |
| CN108177640A (en) * | 2018-01-30 | 2018-06-19 | 袁菊花 | The stop device of vehicle |
| CN110254411A (en) * | 2019-06-26 | 2019-09-20 | 刘剑 | The stopping brake control device of vehicle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105774775A (en) | Vehicle door opening and parking brake control device | |
| CN107914688B (en) | A kind of vehicle gear selecting, stopping brake combination control method | |
| CN103318158B (en) | Integrated electronic hydraulic brake system of automobile | |
| CN103895634B (en) | Hydraulic device for automobile braking energy recovery | |
| CN104648368A (en) | Electronic hydraulic brake system | |
| CN103879394A (en) | Stopping brake system of trailer used under coal mine shaft | |
| CN204736836U (en) | Flame proof rubber tyre vehicle gas protection device | |
| CN203601023U (en) | Intelligent error-stepping preventing accelerator protection system | |
| CN106218624A (en) | A kind of vehicle electric brake fluid system and control method thereof | |
| CN205553924U (en) | Vehicle automatic flameout electrically controlled device that opens door | |
| CN108119576A (en) | A kind of gas servo-clutch booster and its method of work | |
| CN203713856U (en) | Automatic parking and unlocking indicating system | |
| CN204726237U (en) | Collision prevention of vehicle controller | |
| CN203766748U (en) | Hydraulic device for recovering automobile braking energy | |
| CN203819220U (en) | Parking brake system of trailer for underground coal mine | |
| CN109263623B (en) | Parking braking system of engineering truck and control method thereof | |
| CN107200003A (en) | Hydraulic braking system for automobile | |
| CN204641733U (en) | A kind of underground coal mine shovel car gas control accumulator valve group | |
| CN107487442B (en) | Hydraulic actuating system | |
| CN103754721B (en) | Elevator car manual brake set | |
| CN104590226B (en) | A kind of hill start servicing unit and vehicle | |
| CN206374734U (en) | A kind of vehicle electric brake fluid system | |
| CN203601019U (en) | Intelligent protection system avoiding stepping on accelerator mistakenly | |
| CN204985413U (en) | Mining car automatic clutch operating mechanism | |
| CN201089453Y (en) | Brake operating device for big power wheeled tractor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160720 |