CN105128835B - A kind of emergent deactivation system of car parking brake and its release method - Google Patents

A kind of emergent deactivation system of car parking brake and its release method Download PDF

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Publication number
CN105128835B
CN105128835B CN201510452933.9A CN201510452933A CN105128835B CN 105128835 B CN105128835 B CN 105128835B CN 201510452933 A CN201510452933 A CN 201510452933A CN 105128835 B CN105128835 B CN 105128835B
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China
Prior art keywords
parking brake
hand braking
air inlet
gas receiver
gas
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CN201510452933.9A
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CN105128835A (en
Inventor
孟龙灿
倪良春
邱阳
严伟
王伟
孙春生
褚有任
章顺
曹西朴
黄叶明
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Anhui Ankai Automobile Co Ltd
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Anhui Ankai Automobile Co Ltd
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Priority to CN201510452933.9A priority Critical patent/CN105128835B/en
Publication of CN105128835A publication Critical patent/CN105128835A/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60TVEHICLE 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
    • B60T7/00Brake-action initiating means
    • B60T7/02Brake-action initiating means for personal initiation
    • B60T7/08Brake-action initiating means for personal initiation hand actuated

Abstract

The present invention relates to a kind of emergent deactivation system of car parking brake and its release method.System includes hand braking gas receiver, standby gas receiver, emergency button, inflating pump, parking brake, quick release valve and hand braking air chamber.The check valve of gas outlet first of inflating pump is connected with the first air inlet of hand braking gas receiver.Air inlet, the air inlet of quick release valve of first gas outlet of hand braking gas receiver respectively with parking brake are connected.The gas outlet of parking brake is connected with the control mouth of quick release valve.The gas outlet of quick release valve is connected with the air inlet of hand braking air chamber.Second the second check valve of gas outlet of hand braking gas receiver is connected with the air inlet of standby gas receiver.The gas outlet of standby gas receiver is connected through emergency button with the second air inlet of hand braking gas receiver.The present invention can be broken down in car when can not provide braking pressure for hand braking air chamber, provided compressed air for hand brake system temporarily, enable parking brake normal work, it is to avoid hand braking can not release and the inconvenience that brings is operated and repaired to car.

Description

A kind of emergent deactivation system of car parking brake and its release method
Technical field
The present invention relates to Bus Technology field, and in particular to a kind of emergent deactivation system of car parking brake and its release method.
Background technology
At present, car typically uses air-pressure brake, and compressed air is provided by inflating pump, and by compressed-air-storing in storage Used in inflator for brakes.When not having gas in hand braking air chamber, car will be braked, and hand braking needs are certain It could be released under air pressure.Therefore, it is hand braking to will be unable to release when car failure causes system gas to press through low, to the fortune of car Turn and maintenance is made troubles.
The content of the invention
It is an object of the invention to provide a kind of car parking brake meet an urgent need deactivation system, the system can because car occur therefore When hindering and braking pressure can not be provided for hand braking air chamber, compressed air is provided for hand brake system temporarily, enables hand brake system just Often work, it is to avoid operating and maintenance to car are made troubles.
To achieve the above object, present invention employs following technical scheme:
A kind of car parking brake is met an urgent need deactivation system, including hand braking gas receiver, standby gas receiver, emergency button, inflating pump, Parking brake, quick release valve, the first check valve, the second check valve and hand braking air chamber.
The check valve of gas outlet first of the inflating pump is connected with the first air inlet of hand braking gas receiver;It is described hand-made Air inlet, the air inlet of quick release valve of first gas outlet of dynamic gas receiver respectively with parking brake are connected;The gas outlet of the parking brake with The control mouth of quick release valve is connected;The gas outlet of the quick release valve is connected with the air inlet of hand braking air chamber;The hand braking gas storage Second the second check valve of gas outlet of cylinder is connected with the air inlet of standby gas receiver;The gas outlet of the standby gas receiver is through answering Anxious switch is connected with the second air inlet of hand braking gas receiver.
Air inlet of the gas outlet of the inflating pump also with car other systems is connected.The car other systems include pin Brakes, suspension gas-bag system, passenger doors, air horn etc. use gas system.
The emergency button uses knob pipeline switch, and the break-make of air pipe can be controlled by turn knob.
The invention further relates to a kind of release method of the emergent deactivation system of above-mentioned car parking brake, it is characterised in that:This method Comprise the following steps:
(1)During car normal work, emergency button is closed, inflating pump is through the first check valve, the second check valve to hand braking Gas receiver and standby gas receiver provide compressed air, until system pressure reaches setting;The system pressure is whole car Pressure in system, because each system all connects together, theoretical pressure is identical, and this pressure can be according to car Need to be set.
When car normal work and emergency button closing, the circulation of gas in the emergent deactivation system of described car parking brake Direction is:First, from inflating pump gas outlet air inlet respectively to car other systems, the air inlet of the first check valve;Then, From the gas outlet of the first check valve to the first air inlet of hand braking gas receiver, the second gas outlet of hand braking gas receiver to second The air inlet of check valve;Then, from the gas outlet of the second check valve to the air inlet of standby gas receiver;The outlet of standby gas receiver It is not communicated between mouth and the second air inlet of hand braking gas receiver;First gas outlet of hand braking gas receiver is respectively connected to quick release valve Air inlet, the air inlet of parking brake;
Now, if pulling on parking brake, it is not communicated between the air inlet of parking brake and parking brake gas outlet, the air inlet pipeline of quick release valve is closed Close, the compressed air in hand braking gas receiver can not enter hand braking air chamber, while the compressed air in hand braking air chamber passes through Quick release valve is discharged into air, and parking brake comes into force, and car will be braked;
If leaving behind parking brake again, it is connected between the air inlet of parking brake and parking brake gas outlet, the compression in hand braking gas receiver An air part is entered in quick release valve by parking brake, and the air inlet pipeline of control quick release valve is opened, so that in hand braking gas receiver Another part compressed air entered by quick release valve in hand braking air chamber, release it is hand braking;
(2)When car breaks down, if the compression pressure in hand braking gas receiver is more than or equal to predetermined threshold value, close Close emergency button, car hand brake system normal work;
When car failure and emergency button closing, the circulating direction of gas in the emergent deactivation system of described car parking brake For:It is not communicated between the gas outlet of standby gas receiver and the second air inlet of hand braking gas receiver;The first of hand braking gas receiver Gas outlet is respectively connected to the air inlet of the air inlet of quick release valve, parking brake;
Now, if pulling on parking brake, it is not communicated between the air inlet of parking brake and parking brake gas outlet, the air inlet pipeline of quick release valve is closed Close, the compressed air in hand braking gas receiver can not enter hand braking air chamber, while the compressed air in hand braking air chamber passes through Quick release valve is discharged into air, and parking brake comes into force, and car will be braked;
If leaving behind parking brake again, it is connected between the air inlet of parking brake and parking brake gas outlet, the compression in hand braking gas receiver An air part is entered in quick release valve by parking brake, and the air inlet pipeline of control quick release valve is opened, so that in hand braking gas receiver Another part compressed air entered by quick release valve in hand braking air chamber, release it is hand braking;
(3)When car breaks down, if the compression pressure in hand braking gas receiver is less than predetermined threshold value, and by drawing When lower parking brake can not release hand braking, then emergency button is opened, now, gas in the emergent deactivation system of described car parking brake Circulating direction is:From second air inlet of the gas outlet of standby gas receiver through emergency button to hand braking gas receiver, then from hand-made First gas outlet of dynamic gas receiver is respectively connected to the air inlet of the air inlet of quick release valve, parking brake;A part in standby gas receiver Compressed air, first passes through hand braking gas receiver and enters in parking brake, then is entered by parking brake in quick release valve, controls entering for quick release valve Air pipe is provided a loan, so that the another part compressed air in standby gas receiver enters hand braking air chamber by quick release valve In, release hand braking.
From above technical scheme, the present invention can break down in car effectively to be provided for hand braking air chamber During braking pressure, compressed air is provided for hand brake system temporarily, enables hand brake system normal work, it is to avoid be hand braking to release And the inconvenience brought is operated and repaired to car.
Brief description of the drawings
Fig. 1 is the systematic schematic diagram of the present invention.
Wherein:
1st, hand braking gas receiver, 2, standby gas receiver, 3, emergency button, the 4, second check valve, the 5, first check valve, 6, beat Air pump, 7, parking brake, 8, quick release valve, 81, the air inlet of quick release valve, 82, the gas outlet of quick release valve, 83, the control mouth of quick release valve, 9, Hand braking air chamber, 10, car other systems.
Embodiment
The present invention will be further described below in conjunction with the accompanying drawings:
A kind of car parking brake as shown in Figure 1 is met an urgent need deactivation system, including hand braking gas receiver 1, standby gas receiver 2, should Anxious switch 3, inflating pump 6, parking brake 7, quick release valve 8, the first check valve 5, the second check valve 4 and hand braking air chamber 9.
The first check valve of gas outlet 5 of the inflating pump 6 is connected with the first air inlet of hand braking gas receiver 1.It is described Air inlet, the air inlet 81 of quick release valve 8 of first gas outlet of hand braking gas receiver 1 respectively with parking brake 7 are connected.The parking brake 7 Gas outlet be connected with the control mouth 83 of quick release valve 8.The gas outlet 83 of the quick release valve 8 and the air inlet phase of hand braking air chamber 9 Even.Second the second check valve of gas outlet 4 of the hand braking gas receiver 1 is connected with the air inlet of standby gas receiver 2.It is described standby It is connected with the gas outlet of gas receiver 2 through emergency button 3 with the second air inlet of hand braking gas receiver 1.
Air inlet of the gas outlet of the inflating pump 6 also with car other systems is connected.The car other systems include Foot brake system, suspension gas-bag system, passenger doors, air horn etc. use gas system.
The emergency button 3 uses knob pipeline switch, and the break-make of air pipe can be controlled by turn knob.
The quick release valve 8 includes an air inlet, two gas outlets, an exhaust outlet and a control mouth.Such as Fig. 1 institutes Show, the first gas outlet of the catcher braking gas receiver of air inlet 81 of quick release valve;The a gas outlet 82 catcher braking gas of quick release valve The air inlet of room 9, another gas outlet connects braking light switch;The control mouth 83 of quick release valve take over stop 7 gas outlet.Work as control mouth When 83 ventilation, valve is opened inside quick release valve, and the air inlet 81 of quick release valve is connected with gas outlet 82, allows gas to enter Hand braking air chamber 9 releases braking.When the control mouth 83 of quick release valve is airproof, the air inlet 81 of quick release valve and gas outlet 82 It is not attached to lead to, gas can not enter hand braking air chamber 9, the gas of hand braking air chamber 9 can rapidly be arranged by the exhaust outlet of quick release valve Go out car braking.The effect of quick release valve 8 is to shorten gas flow path and then shorten the braking corresponding time.
The present invention operation principle be:
According to the systematic schematic diagram of the emergent deactivation system of car parking brake shown in Fig. 1, the emergent deactivation system is connected Air pipe.During car normal work, emergency button 3 is closed, and inflating pump 6 can be hand braking gas receiver 1 and the voltage supply of standby gas receiver 2 Contracting air is until system pressure reaches setting.The flow direction of compressed air is as illustrated by the arrows in fig. 1.
Leave behind under normal circumstances parking brake 7, the compressed air part in hand braking gas receiver 1 is entered by parking brake 7 puts soon The air inlet pipeline of the control quick release valve 8 of valve 8 is opened, and now the compressed air in hand braking gas receiver 1 can be entered by quick release valve 8 Hand braking air chamber 9 releases hand braking.It is hand-made because the air inlet pipeline without gas pressure quick release valve 8 will be closed when pulling on parking brake Air in dynamic gas receiver 1 can not enter hand braking air chamber 9, while the compressed air in hand braking air chamber 9 will pass through quick release valve 8 Air is discharged into, now parking brake 7 comes into force, car will be braked.
When car breaks down, such as inflating pump 6 can not work or the gas leakage of other systems 10 causes the gas of inflating pump 6 When can not be effectively passed to hand braking gas receiver 1, hand brake system 7 be will be unable to provide normal barometric pressure, and parking brake 7 can not be released.This When the maintenance of vehicle and transhipment will all be brought inconvenience.By technical solutions according to the invention, above-mentioned ask can effectively solve the problem that Topic.Concrete reason is as follows:
Firstly, since being provided with the first check valve 5, hand braking gas receiver 1 between inflating pump 6 and hand braking gas receiver 1 In gas will not be leaked because of the gas leakage of other systems 10, the compressed air in vehicle abnormality in hand braking gas receiver 1 is still Hand brake system normal operation can be kept for a period of time.When car breaks down, it is empty that inflating pump 6 can not effectively provide compression Gas, gas will not flow from the first check valve 5 toward hand braking gas receiver 1, and at this moment hand braking gas receiver 1 is equivalent to source of the gas.In pressure Under power effect, the gas in hand braking gas receiver 1 can be from outlet toward flowing elsewhere, and now, the effect of the first check valve 5 is just It is to separate the contact between hand brake system 1 and other systems 10, makes gas standard enter to be forbidden preferentially to ensure brake system work Make.Because during braking secure item need it is preferential ensure, if without the first check valve 5, the gas in hand braking gas receiver 1 can It can be lost at other systems 10 or failure.With the use of vehicle, compressed air in parking brake gas receiver 1 can more with less, Air pressure is more and more lower, and because it is also only import but no export to have the gas in the second check valve 4 and rotary switch 3, standby gas receiver 2, Compressed air therein will not flow into hand braking gas receiver 1 because of the pressure step-down of hand braking gas receiver 1, the second check valve 4 Effect with rotary switch 3 is exactly to prevent gas to be lost in completely, can allow driving after gas is finished in hand braking gas receiver 1 Member recognizes that vehicle occurs in that failure is checked in time, and rotary switch 3 is at this moment turned on again can just play a part of emergency use.If Gas in cooperation without the second check valve 4 and rotary switch 3, standby gas receiver 2 can also be consumed with the use of vehicle Fall, do not have the effect promptly used.
Secondly because usually emergency button 3 is closed mode, by the middle of hand braking gas receiver 1 and standby gas receiver 2 Second check valve 4 is set, ensure that standby gas receiver 2 can be only inflated without being vented outward, therefore one in standby gas receiver 2 The straight compressed air for storing authorized pressure value.When parking brake 7 can not proper solution remove when, illustrate the compression in hand braking gas receiver 1 Air also has run out, and car failure can not normally provide compressed air, remind driver's maintenance and inspection vehicle.This When, the compressed air opened in emergency button 3, standby gas receiver 2 will enter hand brake system by the outlet of hand braking gas receiver 1 7, it is that the offer pressure of hand brake system 7 ensures that hand brake system remains to run well to release parking brake.Also due to there is provided first is single To valve 5, it is ensured that the compressed air in standby gas receiver 2 may not flow into other systems and cause gas leakage or air pressure too low, It is preferential to ensure that hand brake system is normally used.
In summary, enough gas is provided for hand brake system when the air pressure of the invention that can be broken down in car is not enough Pressure, ensures hand brake system normal work, facilitates the dragging and maintenance of fault car.
Embodiment described above is only that the preferred embodiment of the present invention is described, not to the model of the present invention Enclose and be defined, on the premise of design spirit of the present invention is not departed from, technical side of the those of ordinary skill in the art to the present invention In various modifications and improvement that case is made, the protection domain that claims of the present invention determination all should be fallen into.

Claims (3)

  1. The deactivation system 1. a kind of car parking brake is met an urgent need, it is characterised in that:Including hand braking gas receiver, standby gas receiver, meet an urgent need and open Pass, inflating pump, parking brake, quick release valve, the first check valve, the second check valve and hand braking air chamber;
    The check valve of gas outlet first of the inflating pump is connected with the first air inlet of hand braking gas receiver;The hand braking storage Air inlet, the air inlet of quick release valve of first gas outlet of inflator respectively with parking brake are connected;The gas outlet of the parking brake with putting soon The control mouth of valve is connected;The gas outlet of the quick release valve is connected with the air inlet of hand braking air chamber;The hand braking gas receiver Second the second check valve of gas outlet is connected with the air inlet of standby gas receiver;Opened through emergent the gas outlet of the standby gas receiver Pass is connected with the second air inlet of hand braking gas receiver;
    The release method of the emergent deactivation system of the car parking brake comprises the following steps:
    (1)During car normal work, emergency button is closed, inflating pump is through the first check valve, the second check valve to hand braking gas storage Cylinder and standby gas receiver provide compressed air, until system pressure reaches setting;
    When car normal work and emergency button closing, the circulating direction of gas in the emergent deactivation system of described car parking brake For:First, from inflating pump gas outlet air inlet respectively to car other systems, the air inlet of the first check valve;Then, from The gas outlet of one check valve is to the first air inlet of hand braking gas receiver, and the second gas outlet of hand braking gas receiver is to second unidirectional The air inlet of valve;Then, from the gas outlet of the second check valve to the air inlet of standby gas receiver;The gas outlet of standby gas receiver with It is not communicated between second air inlet of hand braking gas receiver;First gas outlet of hand braking gas receiver is respectively connected to entering for quick release valve The air inlet of gas port, parking brake;
    Now, if pulling on parking brake, it is not communicated between the air inlet of parking brake and parking brake gas outlet, the air inlet pipeline of quick release valve is closed, Compressed air in hand braking gas receiver can not enter hand braking air chamber, while the compressed air in hand braking air chamber by putting soon Valve is discharged into air, and parking brake comes into force, and car will be braked;
    If leaving behind parking brake again, it is connected between the air inlet of parking brake and parking brake gas outlet, the compressed air in hand braking gas receiver A part is entered in quick release valve by parking brake, and the air inlet pipeline of control quick release valve is opened, so that another in hand braking gas receiver Outer a part of compressed air is entered in hand braking air chamber by quick release valve, is released hand braking;
    (2)When car breaks down, if the compression pressure in hand braking gas receiver is more than or equal to predetermined threshold value, closing should Anxious switch, car hand brake system normal work;
    When car failure and emergency button closing, the circulating direction of gas is in the emergent deactivation system of described car parking brake: It is not communicated between the gas outlet of standby gas receiver and the second air inlet of hand braking gas receiver;First outlet of hand braking gas receiver Mouth is respectively connected to air inlet, the air inlet of parking brake of quick release valve;
    Now, if pulling on parking brake, it is not communicated between the air inlet of parking brake and parking brake gas outlet, the air inlet pipeline of quick release valve is closed, Compressed air in hand braking gas receiver can not enter hand braking air chamber, while the compressed air in hand braking air chamber by putting soon Valve is discharged into air, and parking brake comes into force, and car will be braked;
    If leaving behind parking brake again, it is connected between the air inlet of parking brake and parking brake gas outlet, the compressed air in hand braking gas receiver A part is entered in quick release valve by parking brake, and the air inlet pipeline of control quick release valve is opened, so that another in hand braking gas receiver Outer a part of compressed air is entered in hand braking air chamber by quick release valve, is released hand braking;
    (3)When car breaks down, if the compression pressure in hand braking gas receiver is less than predetermined threshold value, and pass through hand of leaving behind Stop when can not release hand braking, then open emergency button, now, described car parking brake is met an urgent need the circulation of gas in deactivation system Direction is:From second air inlet of the gas outlet of standby gas receiver through emergency button to hand braking gas receiver, then from hand braking storage First gas outlet of inflator is respectively connected to the air inlet of the air inlet of quick release valve, parking brake;Part compression in standby gas receiver Air, first passes through hand braking gas receiver and enters in parking brake, then is entered by parking brake in quick release valve, controls the air inlet pipe of quick release valve Road is opened, so that the another part compressed air in standby gas receiver is entered in hand braking air chamber by quick release valve, solution Except hand braking.
  2. The deactivation system 2. a kind of car parking brake according to claim 1 is met an urgent need, it is characterised in that:The outlet of the inflating pump Air inlet of the mouth also with car other systems is connected.
  3. The deactivation system 3. a kind of car parking brake according to claim 1 is met an urgent need, it is characterised in that:The emergency button is used Knob pipeline switch.
CN201510452933.9A 2015-07-29 2015-07-29 A kind of emergent deactivation system of car parking brake and its release method Active CN105128835B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510452933.9A CN105128835B (en) 2015-07-29 2015-07-29 A kind of emergent deactivation system of car parking brake and its release method

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Application Number Priority Date Filing Date Title
CN201510452933.9A CN105128835B (en) 2015-07-29 2015-07-29 A kind of emergent deactivation system of car parking brake and its release method

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CN105128835B true CN105128835B (en) 2017-08-29

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106427976B (en) * 2016-12-20 2018-12-25 安徽江淮汽车集团股份有限公司 A kind of brake pressure compensation control system and method
CN107054319A (en) * 2017-04-21 2017-08-18 南京金龙客车制造有限公司 A kind of emergent deactivation system of car parking brake and its release method

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1733944A1 (en) * 2005-06-15 2006-12-20 Haldex Brake Corporation Electronic park brake valve system for vehicles with air brakes
CN202608757U (en) * 2012-04-25 2012-12-19 北汽福田汽车股份有限公司 Emergency brake and parking brake device and air-pressure braked vehicle
CN103057535A (en) * 2012-12-19 2013-04-24 三一重工股份有限公司 Air pressure braking system and vehicles with same
CN204095795U (en) * 2014-07-28 2015-01-14 北汽福田汽车股份有限公司 Pneumatic braking device and there is the vehicle of this Pneumatic braking device
CN205113299U (en) * 2015-07-29 2016-03-30 安徽安凯汽车股份有限公司 System is relieved to passenger train manual brake emergency

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1733944A1 (en) * 2005-06-15 2006-12-20 Haldex Brake Corporation Electronic park brake valve system for vehicles with air brakes
CN202608757U (en) * 2012-04-25 2012-12-19 北汽福田汽车股份有限公司 Emergency brake and parking brake device and air-pressure braked vehicle
CN103057535A (en) * 2012-12-19 2013-04-24 三一重工股份有限公司 Air pressure braking system and vehicles with same
CN204095795U (en) * 2014-07-28 2015-01-14 北汽福田汽车股份有限公司 Pneumatic braking device and there is the vehicle of this Pneumatic braking device
CN205113299U (en) * 2015-07-29 2016-03-30 安徽安凯汽车股份有限公司 System is relieved to passenger train manual brake emergency

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