CN102358281A - Parking braking protection system - Google Patents
Parking braking protection system Download PDFInfo
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- CN102358281A CN102358281A CN2011102208176A CN201110220817A CN102358281A CN 102358281 A CN102358281 A CN 102358281A CN 2011102208176 A CN2011102208176 A CN 2011102208176A CN 201110220817 A CN201110220817 A CN 201110220817A CN 102358281 A CN102358281 A CN 102358281A
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Abstract
The invention provides a parking braking protection system, which comprises a parking brake valve, a pressure pump, an oil tank, parking brakes and an air-operated hydraulic directional control valve, wherein an air inlet a of the parking brake valve is connected with an air source, and an air outlet of the parking brake valve is connected with the parking brakes and a control port of the air-operated hydraulic directional control valve by a pipeline; an air vent is communicated with the atmosphere; the air outlet is connected with a control port by a pipeline with a throttle valve; and an inlet of the pressure pump is connected with the oil tank, and an outlet of the pressure pump is connected with the parking brakes and a normally closed valve position interface of the air-operated hydraulic directional control valve. By the technical scheme provided by the invention, the occurrence of vehicle slipping can be effectively avoided, the safety of a vehicle and a driver/passengers is protected and the safe production of an underground transport vehicle can be ensured.
Description
Technical field
The present invention relates to mining rubber tire transport trolley field, more specifically, relate to a kind of mining railless free-wheeled vehicle with emergency braking and braking during standstill protection system.
Background technology
The explosion-proof railless free-wheeled vehicle of present mining diesel engine is applied to material and personnel's transportation in large-scale colliery, because the coal mine roadway space is narrow and small, and is mostly domatic.In order to guarantee vehicle and personnel's safety, the actv. emergency brake system particular importance that seems.Existing mining diesel engine railless free-wheeled vehicle adopts the stopping brake valve through row braking protection; In the production process of reality; Often occur forgetting after chaufeur is got off pulling the hand brake and not implementing stopping brake, cause vehicle that sloping incident takes place to slip, cause injury to personnel, damaged vehicle accident.
Therefore, need a kind of braking during standstill protection system, at chaufeur during with the operator's compartment car door opening, the self-opening emergency brake system avoids vehicle that sloping accident takes place to slip, protection vehicle and personnel's safety.
Summary of the invention
Forget and pull the hand brake and make vehicle that sloping accident take place to slip in order to solve in the above-mentioned prior art problem chaufeur; Cause casualties with technical matters such as damaged vehicle or one of at least; The invention provides a kind of braking during standstill protection system, can effectively overcome the above-mentioned defective of prior art.
The invention provides a kind of braking during standstill protection system, it is characterized in that,
Comprise braking during standstill valve 1, force (forcing) pump 2, fuel tank 3, Parking Brake 4, Pneumatic and hydraulic change-over valve 5; The admission port a of said braking during standstill valve 1 connects source of the gas; Air extractor duct c connects the control mouth 5d of said force (forcing) pump 2 and said Pneumatic and hydraulic change-over valve 5 through pipeline; Exhausr port b leads to atmosphere; Said air extractor duct c is connected through the pipeline of band flow regulating valve 7 with control mouthful d, and the import of said force (forcing) pump 2 is connected, exports through pipeline with said fuel tank 3 and is connected with the normally closed valve position interface 5a of said Parking Brake 4 and said Pneumatic and hydraulic change-over valve 5, and the outlet 5c of said Pneumatic and hydraulic change-over valve 5 is connected with said fuel tank 3.During driving, pull up the button of said braking during standstill valve 1, said admission port a and said air extractor duct c connect; The pressure gas compression spring at said control mouthful d place; Keep said braking during standstill valve 1 and be in the said position that pulls up, the said force (forcing) pump 2 of the compressed gas-driven of said air extractor duct c is with delivering to said Parking Brake 4 after the pressurization of the hydraulic oil in the said fuel tank 3; Said Parking Brake 4 unclamps axletree 6, the braking of freeing vehicle; During parking; Press said braking during standstill valve 1, said air extractor duct c and exhausr port b connect and release, and then said force (forcing) pump 2 quits work; And said Pneumatic and hydraulic change-over valve 5 resets under the effect of spring; Hydraulic oil flows back to said fuel tank 3 through said Pneumatic and hydraulic change-over valve 5, and said Parking Brake 4 is held said axletree 6 tightly under the reset response of spring, carry out braking during standstill.
Preferably, also comprise the said hand change over valve of controlling between mouthful 5d 8 that is arranged on said braking during standstill valve 1 said air extractor duct c and said Pneumatic and hydraulic change-over valve 5.Press said hand change over valve 8 handles; The pressurized air of the said control mouthful 5d of said Pneumatic and hydraulic change-over valve 5 is discharged into the atmosphere through the position, a left side of said hand change over valve 8; Hydraulic oil through after said booster pump 2 pressurizations is back to said fuel tank 3 through said Pneumatic and hydraulic change-over valve 5; Said Parking Brake 4 releases are also held said axletree 6 tightly under the reset response of spring, carry out braking during standstill.
Preferably; Comprise also and the said mouthful roller change-over valve 9 of d connection of controlling of said braking during standstill valve 1 that an end of said roller change-over valve 9 is provided with spring, the other end connects the car door axle of operator's compartment; When said operator's compartment car door is opened, said roller brake activation valve 9 right position work.The said mouthful pressure gas at d place of controlling of said braking during standstill valve 1 is discharged into the atmosphere through said roller brake activation valve 9; Under the effect of spring; The said air extractor duct c of said braking during standstill valve 1 and said exhausr port b UNICOM; Said Parking Brake 4 releases are also held axletree 6 tightly under the reset response of spring, carry out braking during standstill.
Preferably; Also comprise the emergency brake valve of connecting with the control mouth d of said braking during standstill valve 1 10; Said braking during standstill valve 10 is arranged on the rear portion of car body or is arranged on objective railway carriage or compartment; When the passenger finds that abnormal condition appear in vehicle, press the button of said emergency brake valve 10, said emergency brake valve 10 right position work.The pressure gas at said control mouthful d place is discharged into the atmosphere through the right position of emergency brake valve 10; Under the effect of spring; The said air extractor duct c of said braking during standstill valve 1 and said exhausr port b UNICOM; Said Parking Brake 4 releases are also held axletree tightly under the reset response of spring, carry out braking during standstill.
Preferably, also comprise the pilot operated directional control valve of connecting with the control mouth d of said braking during standstill valve 1 11, the machine oil hydraulic pipeline of a termination driving engine of said pilot operated directional control valve 11, the other end is a spring.When said machine oil hydraulic is lower than operation pressure; Said pilot operated directional control valve 11 is the work of position, a left side under the effect of said spring; The pressure gas at said control mouthful d place is discharged into the atmosphere through said pilot operated directional control valve 11, under the effect of spring, the said air extractor duct c of said braking during standstill valve 1 and said exhausr port b UNICOM; Said Parking Brake 4 releases are also held axletree tightly under the reset response of spring, carry out braking during standstill.
Preferably, hand change over valve 8, roller change-over valve 9, emergency brake valve 10 and pilot operated directional control valve 11 can perhaps three or three perhaps be arranged in the said braking during standstill protection system according to the control needs in twos simultaneously.
Preferably, said braking during standstill valve 1, hand change over valve 8, roller change-over valve 9, emergency brake valve 10, pilot operated directional control valve 11 are two position three-way valve.
Preferably, also comprise Parking Brake oil pressure indicator 12.
Preferably, said Parking Brake 4 is installed on the back axle of vehicle.
Through braking during standstill protection system provided by the invention, can effectively avoid mining transport trolley that sloping incident takes place to slip, when chaufeur is opened the operator's compartment car door, forget like chaufeur to pull the hand brake, then implement braking during standstill automatically, protection vehicle and personnel's safety.The present invention simultaneously also provides braking during standstill in emergency circumstances, when vehicle is caused danger situation, through implementing braking during standstill by emergency stop button, protection vehicle and personnel's safety.
Description of drawings
Fig. 1 shows first embodiment according to braking during standstill protection system of the present invention;
Fig. 2 shows second embodiment according to braking during standstill protection system of the present invention;
Fig. 3 shows the 3rd embodiment according to braking during standstill protection system of the present invention;
Fig. 4 shows the 4th embodiment according to braking during standstill protection system of the present invention;
Fig. 5 shows the 5th embodiment according to braking during standstill protection system of the present invention;
Fig. 6 shows the 6th embodiment according to braking during standstill protection system of the present invention;
Fig. 7 shows the scheme drawing of the releasing braking during standstill of system shown in Figure 6.
The specific embodiment
Below in conjunction with description of drawings according to the specific embodiment of the present invention.
Set forth a lot of details in the following description so that make much of the present invention, still, the present invention can also adopt other to be different from other modes described here and implement, and therefore, the present invention is not limited to the restriction of following disclosed specific embodiment.
Fig. 1 shows first embodiment according to braking during standstill protection system of the present invention.
As shown in Figure 1, A is a source of the gas, and the arrow direction is an airintake direction; Braking during standstill protection system provided by the invention; Comprise braking during standstill valve 1, force (forcing) pump 2, fuel tank 3, Parking Brake 4, Pneumatic and hydraulic change-over valve 5, the admission port a of said braking during standstill valve 1 connects source of the gas; Air extractor duct c connects the control mouth 5d of said force (forcing) pump 2 and said Pneumatic and hydraulic change-over valve 5 through pipeline; Exhausr port b leads to atmosphere, and said air extractor duct c is connected through flow regulating valve 7 with a control mouthful d, is provided with said force (forcing) pump 2 between said air extractor duct c and the said Parking Brake 4; The import of said force (forcing) pump 2 is connected, exports through pipeline with said fuel tank 3 and is connected with the normally closed valve position interface 5a of said Parking Brake 4 and said Pneumatic and hydraulic change-over valve 5, and the outlet 5c of said Pneumatic and hydraulic change-over valve 5 is connected with said fuel tank 3.During driving, pull up the button of said braking during standstill valve 1, said admission port a and said air extractor duct c connect; The pressure gas compression spring at said control mouthful d place; Keep said braking during standstill valve 1 and be in the said position that pulls up, the said force (forcing) pump 2 of the compressed gas-driven of said air extractor duct c is with delivering to said Parking Brake 4 after the pressurization of the hydraulic oil in the said fuel tank 3; Said Parking Brake 4 unclamps axletree 6, the braking of freeing vehicle; During parking, press said braking during standstill valve 1, hydraulic oil is through 5 times said fuel tanks 3 of said Pneumatic and hydraulic change-over valve, and said Parking Brake 4 is held said axletree 6 tightly under the reset response of spring, carry out braking during standstill.
Shown in Figure 1 is the scheme drawing of removing the state of braking during standstill, and braking during standstill valve 1 is pulled out, and the pressure gas of air source A gets into system through admission port a, air extractor duct c; Air extractor duct c is connected through the pipeline that contains flow regulating valve 7 with a control mouthful d, and the spring of the pressure gas compression braking during standstill valve 1 of control mouthful d makes braking during standstill valve 1 keep the position of extracting; The other end of air extractor duct c is with compressed gas-driven force (forcing) pump 2, and force (forcing) pump 2 is delivered in the hydraulic actuating cylinder of Parking Brake 4 compression spring with the hydraulic oil in the fuel tank 3; The contact vehicle braked, if braking during standstill valve 1 is pressed, then pressure gas drains into the atmosphere from exhausr port b; Pneumatic and hydraulic change-over valve 5 does not have keeping of pressure gas; Hydraulic oil through pressurization is back in the fuel tank 3, and Parking Brake 4 is held axletree 6 tightly, and vehicle gets into the braking during standstill state.
Fig. 2 shows second embodiment according to braking during standstill protection system of the present invention.
As shown in Figure 2, be the braking during standstill state, second embodiment of the present invention, its structure and structure shown in Figure 1 are basic identical, and difference is:
Be provided with hand change over valve 8 in the upper end of said Pneumatic and hydraulic change-over valve 5.Said hand change over valve 8; Can verify whether braking during standstill is normal, press the button of said hand change over valve 8,8 left side position work of said hand change over valve; Two interface 8a of said hand change over valve 8,8c break off; Then the pressurized air of the admission port 5d of Pneumatic and hydraulic change-over valve 5 discharges through the position, a left side of hand change over valve 8, and two interface 5a, 5c of Pneumatic and hydraulic change-over valve communicate, and the hydraulic oil after 2 pressurizations of process force (forcing) pump is through said Pneumatic and hydraulic change-over valve 5 oil sump tanks 3; Rear-axle parking brake 4 is held axletree 6, stopping brake tightly under the effect of spring.If after pressing hand change over valve 5, vehicle gets into the braking during standstill state, explains that emergency brake system is normal, if can not in time get into the braking during standstill state, explains that then the emergency brake system pipeline or the pump housing have fault, need maintain.
On the pipeline of said Parking Brake 4, be connected to Parking Brake oil pressure indicator 12.Can show the oil pressure in the Parking Brake 4 in real time, prevent the accident that oil pressure is too high or oil pressure is not enough.
Fig. 3 shows the 3rd embodiment according to braking during standstill protection system of the present invention.
As shown in Figure 3, be the state of the braking during standstill protection of opening the door, the 3rd embodiment of the present invention, its structure and structure shown in Figure 2 are basic identical, and difference is:
On the control mouth d of said braking during standstill valve 1, be connected to roller change-over valve 9, said roller change-over valve 9 has two, is arranged on the car door place, the left and right sides of operator's compartment, also can arrange adjustment according to the concrete number and the structure of operator's compartment car door.The admission port 9a of said roller change-over valve 9 links to each other with said control mouth d; One end of said roller change-over valve 9 is provided with spring; The other end connects the car door axle of operator's compartment, and when said operator's compartment car door was opened, said roller change-over valve 9 was discharged into the atmosphere the pressurized air at said control mouthful d place two interface 9a, 9c through roller change-over valve 9; Said Parking Brake 4 is held axletree tightly under the reset response of said compression spring, carry out braking during standstill.
Fig. 3 shows at the parking back chaufeur that goes and has forgotten the situation of pressing braking during standstill valve 1 and opening the door and get off; When the operator's compartment car door was opened, roller change-over valve 9 is the work of position, a left side under the effect of retracing spring, and this moment, the pressurized air of d mouth was discharged into the atmosphere through the position, a left side of roller change-over valve 9; Pressurized air can not be very fast under the throttling action of flow regulating valve 7 the additional pressurized air that discharges; Then discharge into the atmosphere in braking during standstill valve 1 right position, and booster pump 2 quits work, the 5 the next work of Pneumatic and hydraulic change-over valve; Two interface 5a of Pneumatic and hydraulic change-over valve, 5c connect; Through this valve oil sump tank 3, then rear-axle parking brake 4 is held axletree 6 tightly under the effect of spring, carries out braking during standstill through the hydraulic oil after booster pump 2 pressurizations.
Fig. 4 shows the 4th embodiment according to braking during standstill protection system of the present invention.
As shown in Figure 4, be urgent braking during standstill guard mode, the 4th embodiment of braking during standstill protection system of the present invention, its structure and structure shown in Figure 2 are basic identical, and its difference is:
Control mouth d at said braking during standstill valve 1 is connected with emergency brake valve 10, and said braking during standstill valve 10 is arranged on the rear portion of car body or is arranged on objective railway carriage or compartment, when the passenger finds that abnormal condition appear in vehicle; Press the button of said emergency brake valve 10, said emergency brake valve 10 right position work, the pressure gas at said control mouthful d place is released in the atmosphere; The additional pressurized air that discharges that can not be very fast under the throttling action of flow regulating valve 7; Then discharge into the atmosphere in braking during standstill valve 1 right position, and booster pump 2 quits work, the 5 the next work of Pneumatic and hydraulic change-over valve; Two interface 5a of Pneumatic and hydraulic change-over valve 5,5c connect; Through this valve oil sump tank 3, then rear-axle parking brake 4 is held axletree 6 tightly under the effect of spring, carries out braking during standstill through the hydraulic oil after booster pump 2 pressurizations.
Like this, when the passenger finds that vehicle is in error state, also can implement braking during standstill, protection vehicle and personnel's safety to vehicle.
Fig. 5 shows the 5th embodiment according to braking during standstill protection system of the present invention.
As shown in Figure 5, for machine oil hydraulic is crossed the braking during standstill guard mode when low, the 5th embodiment of the present invention, its structure and structure shown in Figure 2 are basic identical, and difference is:
Control mouth d place at said braking during standstill valve 1 connects pilot operated directional control valve 11; The machine oil hydraulic pipeline of one termination driving engine of said pilot operated directional control valve 11, another termination spring is when said machine oil hydraulic is lower than operation pressure; Said pilot operated directional control valve 11 is under the effect of spring; Discharge into the atmosphere controlling interface 11b, the 11c of mouthful pressure gas at d place through pilot operated directional control valve, said Parking Brake 4 is held axletree tightly under the reset response of said compression spring, carry out braking during standstill.
Like this, can when engine motor oil is not enough, for vehicle carries out braking during standstill, effectively avoid the generation of accident automatically, protection vehicle and personnel's safety.
Fig. 6 shows the 6th embodiment according to braking during standstill protection system of the present invention.
As shown in Figure 6, be the braking during standstill state, its structure and structure shown in Figure 2 are basic identical, and its difference is: said hand change over valve 8, roller change-over valve 9, emergency brake valve 10 and said pilot operated directional control valve 11 are arranged on simultaneously on the said car body and use.
Preferably, said hand change over valve 8, roller change-over valve 9, emergency brake valve 10 and pilot operated directional control valve 11 can be according to the control needs in twos or 33 or be arranged on simultaneously in the said braking during standstill protection system
Shown in Figure 6, for said hand change over valve 8, roller change-over valve 9, emergency brake valve 10 and said pilot operated directional control valve 11 are arranged on when using on the said car body not starting state of vehicle simultaneously, vehicle is in braking during standstill; At this moment, operator's compartment is in the state of closing the door, and the admission port 9a of roller brake activation valve 9 closes; Braking during standstill hand valve 1 is pressed, and admission port a closes, and driving engine is in not mode of operation; So engine oil pressure is a normal atmosphere (An), two interface 11b of pilot operated directional control valve 11,11c are communicated with, and lead to atmosphere; Two interface 5a of Pneumatic and hydraulic change-over valve 5,5c are communicated with; Through the hydraulic oil oil sump tank 3 that force (forcing) pump 2 pressurizeed, Parking Brake 4 is held axletree 6 tightly under the reset response of spring, carry out braking during standstill.
In system shown in Figure 6, any one valve in roller brake activation valve 9, hand change over valve 8, emergency brake valve 10, the pilot operated directional control valve 11 can carry out braking during standstill to system, also can work simultaneously, and system is carried out braking during standstill.
Fig. 7 shows the scheme drawing of the releasing braking during standstill of system shown in Figure 5.
As shown in Figure 7, during for driving, close the operator's compartment car door; The admission port 9a of roller brake activation valve 9 closes, and pulls up braking during standstill valve 1, and admission port a and air extractor duct c are communicated with; Source of the gas is system's voltage supply gas that contracts, and air extractor duct c and control mouthful d are communicated with, and keeps braking during standstill valve 1 and is in and pulls up the position; Start the engine, machine oil hydraulic rise, and the admission port 11b of pilot operated directional control valve 11 is blocked; Compressed gas-driven force (forcing) pump 2 is delivered to Parking Brake 4 after the hydraulic oil in the fuel tank 3 is pressurizeed, and removes braking during standstill, and Pneumatic and hydraulic change-over valve 5 is in upper work under the effect of pressure gas; Two interface 5a, 5c of Pneumatic and hydraulic change-over valve 5 are in the partition state, hydraulic oil can not from the interface 5a of Pneumatic and hydraulic change-over valve,, the 5c oil sump tank, guarantee to remove braking during standstill.
Further, among above-mentioned each embodiment, said braking during standstill valve 1, hand change over valve 8, roller change-over valve 9, emergency brake valve 10, pilot operated directional control valve 11 are two position three-way valve.
Described braking during standstill protection system also comprises Parking Brake oil pressure indicator 12, understands the pressure condition of hydraulic braking system at any time.
Said Parking Brake 4 is installed on the back axle of vehicle, the braking more firmly, more steady
It should be appreciated by those skilled in the art; Emergency braking function of the present invention, the braking during standstill defencive function that opens the door, the automatic function of implementing braking during standstill when hydraulic oil is not enough; All be to realize, as connect emergency brake valve, roller brake activation valve, pilot operated directional control valve and wait and realize automatic parking brake in the external triggering control cock of the control mouth of braking during standstill valve 1.Other states of vehicle such as engine off, blow out, the Low oil Fuel condition of waiting for bus in the fuel tank; All can adopt corresponding sensor to know; And realize braking during standstill through the control mouth that corresponding control cock is connected on braking during standstill valve 1; Protection vehicle and personnel's safety, every employing braking during standstill valve of the present invention is realized the method and apparatus of various automatic parking brakes, all should be included within protection scope of the present invention.
The above is merely the preferred embodiments of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. braking during standstill protection system; It is characterized in that; Comprise braking during standstill valve (1), force (forcing) pump (2), fuel tank (3), Parking Brake (4), Pneumatic and hydraulic change-over valve (5); The admission port (a) of said braking during standstill valve (1) connects source of the gas; Air extractor duct (c) connects the control mouth (5d) of said force (forcing) pump (2) and said Pneumatic and hydraulic change-over valve (5) through pipeline, and exhausr port (b) leads to atmosphere, and said air extractor duct (c) is connected through being with flow regulating valve (7) with control mouthful (d); The import of said force (forcing) pump (2) is connected, exports through pipeline with said fuel tank (3) and is connected with the normally closed valve position interface (5a) of said Parking Brake (4) and said Pneumatic and hydraulic change-over valve (5), and the outlet (5c) of said Pneumatic and hydraulic change-over valve (5) is connected with said fuel tank (3).
2. emergency braking according to claim 1 and braking during standstill protection system; It is characterized in that, also comprise the hand change over valve (8) between the said control mouthful (5d) that is arranged on said air extractor duct of said braking during standstill valve (1) (c) and said Pneumatic and hydraulic change-over valve (5).
3. braking during standstill protection system according to claim 1; It is characterized in that; Also comprise the roller change-over valve of connecting with the said control mouthful (d) of said braking during standstill valve (1) (9), an end of said roller change-over valve (9) is provided with spring, and the other end connects the car door axle of operator's compartment; When said operator's compartment car door is opened, said roller brake activation valve (9) right position work.
4. braking during standstill protection system according to claim 1; It is characterized in that; Also comprise the emergency brake valve of connecting with the control mouth (d) of said braking during standstill valve (1) (10), said braking during standstill valve (10) is arranged on the rear portion of car body or is arranged on objective railway carriage or compartment, when the passenger finds that abnormal condition appear in vehicle; Press the button of said emergency brake valve (10), carry out braking during standstill.
5. braking during standstill protection system according to claim 1; It is characterized in that; Also comprise the pilot operated directional control valve of connecting with the control mouth (d) of said braking during standstill valve (1) (11), the machine oil hydraulic pipeline of a termination driving engine of said pilot operated directional control valve (11), the other end is a spring.
6. braking during standstill protection system according to claim 1; It is characterized in that; Said hand change over valve (8), roller change-over valve (9), emergency brake valve (10) and pilot operated directional control valve (11) can perhaps three or three perhaps be arranged in the said braking during standstill protection system according to the control needs in twos simultaneously.
7. according to the arbitrary described braking during standstill protection system of claim 1 to 6, it is characterized in that said braking during standstill valve (1), hand change over valve (8), roller change-over valve (9), emergency brake valve (10), pilot operated directional control valve (11) are two position three-way valve.
8. braking during standstill protection system according to claim 7 is characterized in that, also comprises Parking Brake oil pressure indicator (12).
9. braking during standstill protection system according to claim 8 is characterized in that, said Parking Brake (4) is installed on the back axle of vehicle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110220817 CN102358281B (en) | 2011-08-03 | 2011-08-03 | Parking braking protection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110220817 CN102358281B (en) | 2011-08-03 | 2011-08-03 | Parking braking protection system |
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| CN102358281A true CN102358281A (en) | 2012-02-22 |
| CN102358281B CN102358281B (en) | 2013-08-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201110220817 Active CN102358281B (en) | 2011-08-03 | 2011-08-03 | Parking braking protection system |
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| 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 |
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| CN104325969A (en) * | 2014-10-09 | 2015-02-04 | 浙江万向精工有限公司 | Brake-by-wire assisted parking device and realization method |
| CN105216772A (en) * | 2015-10-23 | 2016-01-06 | 湖南晟通天力汽车有限公司 | Parking and handling interlock system |
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| CN109017732A (en) * | 2018-08-25 | 2018-12-18 | 刘剑 | The stop device of vehicle |
| CN110127238A (en) * | 2019-05-23 | 2019-08-16 | 江西制氧机有限公司 | A kind of riveted type stainless valve case and its installation method |
| CN113613975A (en) * | 2018-12-28 | 2021-11-05 | 纳博特斯克汽车零部件有限公司 | Air supply circuit |
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| 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 |
| CN103935350A (en) * | 2014-04-15 | 2014-07-23 | 三一矿机有限公司 | Gas-liquid composite braking structure and mining mechanical vehicle |
| CN103935350B (en) * | 2014-04-15 | 2017-02-01 | 三一重型装备有限公司 | Gas-liquid composite braking structure and mining mechanical vehicle |
| CN104325969A (en) * | 2014-10-09 | 2015-02-04 | 浙江万向精工有限公司 | Brake-by-wire assisted parking device and realization method |
| CN104325969B (en) * | 2014-10-09 | 2017-04-19 | 浙江万向精工有限公司 | Brake-by-wire assisted parking device and realization method |
| CN105216772A (en) * | 2015-10-23 | 2016-01-06 | 湖南晟通天力汽车有限公司 | Parking and handling interlock system |
| CN105216772B (en) * | 2015-10-23 | 2017-11-03 | 湖南晟通天力汽车有限公司 | Parking and handling interlock system |
| CN105774775A (en) * | 2016-04-28 | 2016-07-20 | 朱明德 | Vehicle door opening and parking brake control device |
| CN108297627A (en) * | 2017-01-11 | 2018-07-20 | 比亚迪股份有限公司 | Automobile flat tire is met an urgent need protective device, tire and automobile |
| CN107972650B (en) * | 2017-08-04 | 2020-07-03 | 中国煤炭科工集团太原研究院有限公司 | Hydraulic-pneumatic composite braking system with door protection for explosion-proof rubber-tyred vehicle |
| CN107972650A (en) * | 2017-08-04 | 2018-05-01 | 中国煤炭科工集团太原研究院有限公司 | Hydraulic-pneumatic composite braking system for the protection of flame proof rubber tyre vehicle band door |
| CN107867270A (en) * | 2017-11-07 | 2018-04-03 | 刘剑 | The overspeed braking device of trailer |
| CN107867270B (en) * | 2017-11-07 | 2019-11-19 | 马鞍山楚锐科技信息咨询有限公司 | The overspeed braking device of trailer |
| CN109017732A (en) * | 2018-08-25 | 2018-12-18 | 刘剑 | The stop device of vehicle |
| CN113613975A (en) * | 2018-12-28 | 2021-11-05 | 纳博特斯克汽车零部件有限公司 | Air supply circuit |
| CN110127238A (en) * | 2019-05-23 | 2019-08-16 | 江西制氧机有限公司 | A kind of riveted type stainless valve case and its installation method |
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| CN102358281B (en) | 2013-08-21 |
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