CN202038306U - Air brake valve and air brake system - Google Patents
Air brake valve and air brake system Download PDFInfo
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- CN202038306U CN202038306U CN2011201600457U CN201120160045U CN202038306U CN 202038306 U CN202038306 U CN 202038306U CN 2011201600457 U CN2011201600457 U CN 2011201600457U CN 201120160045 U CN201120160045 U CN 201120160045U CN 202038306 U CN202038306 U CN 202038306U
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- 238000004891 communication Methods 0.000 claims description 10
- 239000007789 gas Substances 0.000 description 52
- 230000006870 function Effects 0.000 description 7
- 238000010073 coating (rubber) Methods 0.000 description 5
- 230000035484 reaction time Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000005489 elastic deformation Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000003534 oscillatory effect Effects 0.000 description 1
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- 238000011084 recovery Methods 0.000 description 1
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Abstract
The utility model provides an air brake valve, which comprises a valve body, a middle piston and a lower cavity piston, wherein a first gap and a second gap are arranged between the middle piston and the lower cavity piston, and a switch is arranged in the first gap or the second gap. The utility model also provides an air brake system, which comprises a service braking pipeline and a parking braking pipeline, wherein the parking braking pipeline comprises a parking braking air chamber, the service braking pipeline comprises the air brake valve, the parking braking pipeline comprises an electromagnetic air valve, and the switch of the air brake valve is electrically connected with the electromagnetic air valve; and the electromagnetic air valve comprises an electromagnetic air valve air inlet, an electromagnetic air valve air outlet and an electromagnetic air valve exhaust port, the electromagnetic air valve air outlet is communicated with the parking braking air chamber, and the electromagnetic air valve exhaust port is communicated with the atmosphere. With the technical scheme, when the service braking system fails, parking braking of the air brake valve and the air brake system can be automatically started so as to avoid dangers caused by experience lack or longer response time of a driver.
Description
Technical field
The utility model relates to air brake valve and Pneumatic braking system, particularly, relates to a kind of air brake valve and Pneumatic braking system with emergency brake function.
Background technology
In existing automobile, brake system is divided into the service brake emergency brake system of unifying, and wherein, the service brake emergency brake system of unifying is separate.Usually, each vehicle bridge of automobile all has running braking function, and promptly each vehicle bridge all is provided with the service brake air chamber, and propons does not have parking braking function usually, that is to say that propons is not provided with the braking during standstill air chamber.
In vehicle traveling process, chaufeur utilizes service braking system to produce braking force usually and makes car deceleration or stop, if but the service braking system of automobile breaks down, service brake was lost efficacy, and chaufeur need find that manually booting emergency brake system again after service brake was lost efficacy could produce braking effect.Like this, whether automobile in case of emergency can the hedging success depend on driver reaction time to a great extent, also just require chaufeur experienced, and there is very big danger in driver reaction time usually greater than 2 seconds at this moment.
Common employed air brake valve also has certain emergency brake function.Existing air brake valve generally includes two chambeies up and down, and the epicoele loop is used for controlling the service brake of back axle (for two-axle motor unit) or middle back axle (for six-wheeler), and the cavity of resorption loop is used for controlling the service brake of propons.This air brake valve comprises valve body 1, push rod 2, epicoele piston 3, middle piston 4 and cavity of resorption piston 5, have the epicoele admission port 11 and the cavity of resorption admission port 13 that are communicated with air receiver on the described valve body 1, and epicoele air extractor duct 12 that is communicated with the service brake air chamber and cavity of resorption air extractor duct 14.Wherein, described epicoele piston 3 contacts with middle piston 4, therefore piston 4 in the mechanical force that puts on described epicoele piston 3 can being passed to, have first gap and second gap between piston 4 and the described cavity of resorption piston 5 in described, the scheme drawing of piston 4 and cavity of resorption piston 5 in Figure 3 shows that, as can be seen from the figure middle piston 4 and cavity of resorption piston 5 all are the shape of bending, middle piston 4 has first end face 41 and is positioned at the first annular table terrace 42 of this first end face inboard, cavity of resorption piston 5 has second end face 51 and is positioned at the second annular table terrace 52 in this second end face outside, first gap is formed between second end face respect to one another and the first annular table terrace 42, second gap is formed between first end face 41 respect to one another and the second annular table terrace 52, and this first gap is greater than second gap usually.
When normally carrying out service brake, chaufeur is stepped on service braking pedal, and braking force is applied on the push rod 2, and push rod 2 promotes epicoele piston 3 and moves down, thereby epicoele admission port 11 and epicoele air extractor duct 12 are communicated with, thereby produces back axle or middle back axle service brake.Meanwhile, the interior gas of valve body that enters air brake valve produces downward pressure to cavity of resorption piston 5, thereby cavity of resorption admission port 13 and cavity of resorption air extractor duct 14 are communicated with, and produces the propons service brake.
When the back axle of service braking system or middle back axle loop et out of order, for example epicoele air extractor duct 12 is to the pipeline fracture of power element, service brake air chamber 150 is destroyed can't to be sealed or the gas feeder breakage of back air receiver 130 etc., even chaufeur is stepped on service braking pedal, the epicoele loop of air brake valve 110 can not be communicated with, so back axle service brake in can't producing.Though the interior no gas of valve body this moment produces downward pressure to cavity of resorption piston 5, piston 4 during but epicoele piston 3 promotes downwards, because first gap between middle piston 4 and the cavity of resorption piston 5 is greater than second gap, so central piston 4 moves down when first end face 41 and the second annular table terrace, 52 complete closures, first gap is still not closed, and just first gap still exists.So middle piston 4 promotes cavity of resorption piston 5 downwards by the closure in described second gap, the epicoele circuit communication, the propons service brake is effective.
However, the braking force of propons is less than 40% of car load braking force usually, and propons is steeraxle, only relies on propons to provide braking force also to have certain danger, especially under speed of a motor vehicle condition with higher.And the judgement whether service brake is broken down can only rely on the perception of chaufeur to braking force, and then takes emergency measures, and not only can prolong the emergency reaction time of chaufeur, and can only rely on experience and can't accurately judge whether et out of order.
The utility model content
The purpose of this utility model provides a kind of air brake valve, and this air brake valve can start braking during standstill automatically when the service brake et out of order.
To achieve these goals, the utility model provides a kind of air brake valve, and this air brake valve comprises valve body, middle piston and cavity of resorption piston, has first gap and second gap between described middle piston and the described cavity of resorption piston, wherein, in described first gap or second gap, be provided with switch.
Preferably, piston has first end face and the first annular table terrace that is positioned at this first end face inboard in described, described cavity of resorption piston has second end face and is positioned at the second annular table terrace in this second end face outside, described first gap is formed between described second end face respect to one another and the described first annular table terrace, and described second gap is formed between described first end face respect to one another and the described second annular table terrace.
Preferably, described first gap is greater than described second gap, and described switch is arranged on described first end face and/or the described second annular table terrace.
Preferably, described second gap is greater than described first gap, and described switch is arranged on described second end face and/or the described first annular table terrace.
Preferably, described second gap is than the described big 0.5～2mm in first gap.
Preferably, described switch is a contact switch.
In addition, the utility model also provides a kind of Pneumatic braking system, this Pneumatic braking system comprises service brake pipeline and braking during standstill pipeline, described braking during standstill pipeline comprises the braking during standstill air chamber, wherein, comprise above-mentioned any described air brake valve of claim in the described service brake pipeline, comprise electromagnetic gas valve in the described braking during standstill pipeline, wherein
The switch of described air brake valve is electrically connected with described electromagnetic gas valve;
Described electromagnetic gas valve comprises electromagnetic gas valve admission port, electromagnetic gas valve air extractor duct and electromagnetic gas valve exhausr port, and described electromagnetic gas valve air extractor duct is communicated with described braking during standstill air chamber, and described electromagnetic gas valve exhausr port is communicated with atmosphere.
Preferably, described Pneumatic braking system also comprises annunciator, and described switch is electrically connected with described annunciator.
Preferably, described Pneumatic braking system also comprises differential relay valve, and this differential relay valve comprises braking during standstill air chamber communication port, and this braking during standstill air chamber communication port is communicated with the electromagnetic gas valve admission port of described electromagnetic gas valve.
Preferably, described Pneumatic braking system also comprises two-way valve, and this two-way valve comprises the two-way valve air extractor duct, and this two-way valve air extractor duct is communicated with the admission port of described electromagnetic gas valve.
Pass through technique scheme, when service braking system (especially back axle or middle back axle service brake) et out of order, air brake valve of the present utility model and Pneumatic braking system can start braking during standstill automatically, thereby have avoided owing to chaufeur is lacked experience or the long danger that causes of reflection time.
Other feature and advantage of the present utility model will partly be described in detail in the specific embodiment subsequently.
Description of drawings
Accompanying drawing is to be used to provide further understanding of the present utility model, and constitutes the part of specification sheets, is used from explanation the utility model with the following specific embodiment one, but does not constitute restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the cutaway view of air brake valve of the present utility model;
Fig. 2 is originally to be scheme drawing with later-model air brake valve;
Fig. 3 is the scheme drawing of Pneumatic braking system of the present utility model;
Fig. 4 is the middle piston of air brake valve of the present utility model and the partial schematic diagram of cavity of resorption piston.
Description of reference numerals
1 valve body, 11 epicoele admission ports
12 epicoele air extractor ducts, 13 cavity of resorption admission ports
14 cavity of resorption air extractor ducts, 100 epicoele air inlet chambers
101 epicoele inlet valves, 102 epicoele exhaust valves
The 103 epicoeles chamber 104 air-flow apertures of giving vent to anger
105 cavity of resorption pressure chamber, 106 cavity of resorption air inlet chambers
107 cavity of resorption inlet valves, 108 cavity of resorption exhaust valves
109 cavity of resorptions chamber 2 push rods of giving vent to anger
Piston in the 3 epicoele pistons 4
41 first end faces, 42 first annular table terraces
5 cavity of resorption pistons, 51 second end faces
52 second annular table terraces, 6 switches
Contact on 61 rubber coatings 62
63 times contact 110 air brake valves
120 electromagnetic gas valves, 121 electromagnetic gas valve admission ports
122 electromagnetic gas valve air extractor ducts, 123 electromagnetic gas valve exhausr ports
130 air receivers, 140 annunciators
150 service brake air chambers, 160 braking during standstill air chambers
170 differential relay valve 171 braking during standstill air chamber communication ports
The specific embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present utility model is elaborated.Should be understood that the specific embodiment described herein only is used for description and interpretation the utility model, is not limited to the utility model.
In the utility model, under the situation of not doing opposite explanation, the noun of locality of use as " on ", D score typically refers to the above and below as shown in the Figure of description; " inboard ", " outside " refer to the inboard and the lateral direction of valve body.
The invention provides a kind of air brake valve, this air brake valve comprises valve body 1, middle piston 4 and cavity of resorption piston 5, have first gap and second gap between piston 4 and the described cavity of resorption piston 5 in described, wherein, in described first gap or second gap, be provided with switch 6.
Preferably, piston has first end face 41 and the first annular table terrace 42 that is positioned at these first end face, 41 inboards in described, described cavity of resorption piston has second end face 51 and is positioned at the second annular table terrace 52 in these second end face, 51 outsides, described first gap is formed between described second end face 51 respect to one another and the described first annular table terrace 42, and described second gap is formed between described first end face 41 respect to one another and the described second annular table terrace 52.
Preferably, described first gap is greater than described second gap, and described switch 6 is arranged on described first end face 41 and/or the described second annular table terrace 52.
Perhaps, preferably, described second gap is greater than described first gap, and described switch 6 is arranged on described second end face 51 and/or the described first annular table terrace 42.
That is to say, switch 6 is arranged among first gap and second gap between the less clearance, and this switch 6 can be arranged on the second opposed end face 51 and/or the first annular table terrace 42 that forms first gap, or on the first relative end face 41 and/or the second annular table terrace 52 that form second gap, it should be noted that, difference according to type, switch 6 can a part be arranged on the middle piston 4, another part is arranged on the cavity of resorption piston 5, close switch when central piston 4 contacts with cavity of resorption piston 5.
Above air brake valve commonly used in the prior art is introduced, air brake valve provided by the utility model also adopts the structure of this two-chamber, wherein epicoele loop control back axle or middle back axle service brake, the service brake of cavity of resorption loop control propons.
Be that example is described in detail with the embodiment in the accompanying drawing below.Under the initial condition of running car, epicoele admission port 11 and cavity of resorption admission port 13 are communicated with epicoele air inlet chamber 100 and cavity of resorption air inlet chamber 106 respectively, epicoele exhaust valve 102 is opened at this moment, epicoele inlet valve 101 is closed, therefore the interior gas of valve body that enters air brake valve 110 is directly discharged, and does not produce service brake.
When normally carrying out service brake, chaufeur is stepped on service braking pedal, braking force is applied on the push rod 2, push rod 2 promotes epicoele piston 3 and moves down, and closes epicoele exhaust valve 102, opens epicoele inlet valve 101, so the gas in the epicoele air inlet chamber 100 enters the epicoele chamber 103 of giving vent to anger, arrive epicoele air extractor ducts 12 from give vent to anger chamber 103 of epicoele again, thereby epicoele admission port 11 and epicoele air extractor duct 12 are communicated with, produce back axle or middle back axle service brake.Meanwhile, the gas that epicoele is given vent to anger in the chamber 103 also arrives cavity of resorption pressure chamber 105 by air-flow aperture 104, and cavity of resorption piston 5 is produced downward pressure, described cavity of resorption piston 5 is descending, close cavity of resorption exhaust valve 108 and open cavity of resorption inlet valve 107,, arrive cavity of resorption air extractor ducts 14 from the cavity of resorption chamber 109 of giving vent to anger again so the gas in the cavity of resorption air inlet chamber 106 enters the cavity of resorption chamber 109 of giving vent to anger, thereby cavity of resorption admission port 13 and cavity of resorption air extractor duct 14 are communicated with, produce the propons service brake.
When the back axle of service braking system or middle back axle loop et out of order, for example epicoele air extractor duct 12 is to the pipeline fracture of power element, service brake air chamber 150 is destroyed can't to be sealed or the gas feeder breakage of back air receiver 130 etc., even chaufeur is stepped on service braking pedal, the epicoele loop of air brake valve 110 can not be communicated with, so back axle service brake in can't producing, and also have only mechanical force this moment and do not have gaseous tension.Though no gases produce downward pressure to cavity of resorption piston 5 in the cavity of resorption pressure chamber 105 at this moment, epicoele piston 3 contacts with middle piston, and relies on piston 4 in the mechanical force promotion downwards.
In preferred implementation of the present utility model shown in the drawings, the middle piston 4 of air brake valve 110 and first gap between the cavity of resorption piston 5 are less than second gap, so central piston 4 moves down when first gap is closed fully, second gap still exists.So middle piston 4 promotes cavity of resorption piston 5 downwards by making described first gap-closing, the epicoele circuit communication, the propons service brake is effective.Meanwhile, in the preferred implementation shown in the drawings, switch 6 is arranged on second end face 51 of cavity of resorption piston 5, thus when the fault of above-mentioned service braking system occurring, described first gap-closing, thus make described switch 6 closures.
Need to prove, more than the structure of preferred implementation shown in the drawings has only been described.In embodiment shown in the drawings, described switch 6 can also be arranged on the first annular table terrace 42, and perhaps switch 6 is a touch switch, and two parts of switch 6 are separately positioned on the second opposed end face 51 and the first annular table terrace 42.In addition, first gap between described middle piston 4 and the cavity of resorption piston 5 also can be greater than second gap, and described like this switch 6 is arranged on first end face 41 and/or the second annular table terrace 52.
Because air brake valve of the present utility model has said structure, therefore when breaking down, service braking system can start emergency brake system automatically.This will describe in detail in the description to Pneumatic braking system of the present utility model hereinafter.
Preferably, described second gap is than the big 0.5～2mm in first gap.In principle, second gap gets final product greater than first gap, but for the ease of factors such as processing, the gap of size can realize function between second gap and first gap when 0.5～2mm, is convenient to processing again.
Preferably, described switch is a contact switch 6.In the preferred implementation as shown in the figure, this contact switch 6 comprises that the lower end is fixed between described first gap on the cavity of resorption piston 5 relative with middle piston 4 and rubber coating 61 that can the pressurized elastic deformation, and the last contact 62 and the following contact 63 that are separately fixed at these rubber coating 61 in-to-in upper surfaces and lower surface and are separated from each other, described contact 62 and the following contact 63 gone up is in contact with one another and makes described contact switch 6 closures when described rubber coating 61 pressurized elastic deformations, do not go up contact 62 and following contact 63 is separated from each other and makes described contact switch 6 disconnections when described rubber coating 61 is described during the pressurized elastic recovery.
Since when the service brake of automobile is broken down, under the effect of mechanical force, first gap or second gap-closing, thus make switch 6 closures.Because space problem, so in the utility model, preferably adopt the embodiment of contact switch as switch, but any by approaching, contact or push and closed switch may be used in the air brake valve of the present utility model, for example near switch or pressure switch etc.
In addition, the utility model also provides a kind of Pneumatic braking system, this Pneumatic braking system comprises service brake pipeline and braking during standstill pipeline, described braking during standstill pipeline comprises braking during standstill air chamber 160, wherein, comprise air brake valve 110 provided by the utility model in the described service brake pipeline, comprise electromagnetic gas valve 120 in the described braking during standstill pipeline, wherein
The switch 6 of described air brake valve 110 is electrically connected with described electromagnetic gas valve 120;
Described electromagnetic gas valve 120 comprises electromagnetic gas valve admission port 121, electromagnetic gas valve air extractor duct 122 and electromagnetic gas valve exhausr port 123, and described electromagnetic gas valve air extractor duct 122 is communicated with described braking during standstill air chamber 160, and described electromagnetic gas valve exhausr port 123 is communicated with atmosphere.
Because switch 6 is connected in the circuit with electromagnetic gas valve 120, therefore electromagnetic gas valve energising when switch 6 closures, this moment, electromagnetic gas valve air extractor duct 122 was communicated with electromagnetic gas valve exhausr port 123, be that braking during standstill air chamber 160 is communicated with atmosphere, gaseous emission in the braking during standstill air chamber 160 is in atmosphere, thus the enforcement braking during standstill; When switch 6 outages, electromagnetic gas valve admission port 121 is communicated with electromagnetic gas valve air extractor duct 122, connects braking mode thereby be in Parking.
Need to prove that herein electromagnetic gas valve 120 is equivalent to be connected on before the braking during standstill air chamber 160 in the brake system, wherein the electromagnetic gas valve air extractor duct is communicated with braking during standstill air chamber 160, the members before electromagnetic gas valve admission port and the braking during standstill air chamber 160.To those skilled in the art clearly, in existing brake system, electromagnetic gas valve admission port 121 can directly be communicated with air receiver 130, also can be connected with preventing the parts of braking stack, hereinafter will the preferred connection situation of electromagnetic gas valve admission port 121 be introduced, repeat no more herein.
Preferably, described Pneumatic braking system also comprises annunciator 140, and described switch 6 is electrically connected with described annunciator 140.
According to the structure of automobile, annunciator 140 can adopt the annunciator of any suitable kind, for example buzzer phone, indicator lamp or oscillatory system etc.In addition, annunciator 140 also can be arranged on any position easy to install and use, is convenient to chaufeur and in time notes abnormalities.
In addition, need to prove that switch 6 both was electrically connected with electromagnetic gas valve 120, because annunciator 140 electrical connections, so the annexation between described electromagnetic gas valve 120 and the annunciator 140 can be in parallel and can be series connection.
Preferably, described Pneumatic braking system also comprises differential relay valve 170, and this differential relay valve 170 comprises braking during standstill air chamber communication port 171, and this braking during standstill air chamber communication port 171 is communicated with described electromagnetic gas valve admission port 121.
In addition, preferably, described Pneumatic braking system also comprises two-way valve, and this two-way valve comprises the two-way valve air extractor duct, and this two-way valve air extractor duct is communicated with the admission port of described electromagnetic gas valve.
Above by the agency of the utility model described electromagnetic gas valve 120 of before braking during standstill air chamber 160, connecting, and described electromagnetic gas valve air extractor duct 122 is communicated with the braking during standstill air chamber, described electromagnetic gas valve exhausr port is communicated with atmosphere, and electromagnetic gas valve admission port 121 is connected with braking during standstill air chamber 160 parts before in the existing brake system.That is to say, electromagnetic gas valve admission port 121 can directly be communicated with air receiver 130, also can in the system that comprises differential relay valve 170, preferably be communicated with, perhaps in comprising the system of two-way valve, preferably be communicated with the two-way valve air extractor duct with the braking during standstill air chamber communication port 171 of differential relay valve 170.Wherein, differential relay valve 170 and two-way valve all are the parts that can play the function that prevents service brake and braking during standstill stack.
Below describe preferred implementation of the present utility model in conjunction with the accompanying drawings in detail; but; the utility model is not limited to the detail in the above-mentioned embodiment; in technical conceive scope of the present utility model; can carry out multiple simple variant to the technical solution of the utility model, these simple variant all belong to protection domain of the present utility model.For example, differential relay valve can be changed into two-way valve or other play the parts of identical or similar functions.
Need to prove in addition, each concrete technical characterictic described in the above-mentioned specific embodiment under reconcilable situation, can make up by any suitable manner, for fear of unnecessary repetition, the utility model is to the explanation no longer separately of various possible array modes.
In addition, also can carry out combination in any between the various embodiment of the present utility model, as long as it is without prejudice to thought of the present utility model, it should be considered as content disclosed in the utility model equally.
Claims (10)
1. air brake valve, this air brake valve comprises valve body (1), middle piston (4) and cavity of resorption piston (5), have first gap and second gap between piston (4) and the described cavity of resorption piston (5) in described, it is characterized in that, in described first gap or second gap, be provided with switch (6).
2. air brake valve according to claim 1, it is characterized in that, piston has first end face (41) and is positioned at the first inboard annular table terrace (42) of this first end face (41) in described, described cavity of resorption piston has second end face (51) and is positioned at the second annular table terrace (52) in this second end face (51) outside, described first gap is formed between described second end face respect to one another (51) and the described first annular table terrace (42), and described second gap is formed between described first end face respect to one another (41) and the described second annular table terrace (52).
3. air brake valve according to claim 2 is characterized in that, described first gap is greater than described second gap, and described switch (6) is arranged on described first end face (41) and/or the described second annular table terrace (52).
4. air brake valve according to claim 2 is characterized in that, described second gap is greater than described first gap, and described switch (6) is arranged on described second end face (51) and/or the described first annular table terrace (42).
5. air brake valve according to claim 4 is characterized in that, described second gap is than the described big 0.5～2mm in first gap.
6. air brake valve according to claim 1 is characterized in that, described switch is contact switch (6).
7. Pneumatic braking system, this Pneumatic braking system comprises service brake pipeline and braking during standstill pipeline, described braking during standstill pipeline comprises braking during standstill air chamber (160), it is characterized in that, comprise any described air brake valve of claim (110) among the claim 1-6 in the described service brake pipeline, comprise electromagnetic gas valve (120) in the described braking during standstill pipeline, wherein
The switch (6) of described air brake valve (110) is electrically connected with described electromagnetic gas valve (120);
Described electromagnetic gas valve (120) comprises electromagnetic gas valve admission port (121), electromagnetic gas valve air extractor duct (122) and electromagnetic gas valve exhausr port (123), described electromagnetic gas valve air extractor duct (122) is communicated with described braking during standstill air chamber (160), and described electromagnetic gas valve exhausr port (123) is communicated with atmosphere.
8. Pneumatic braking system according to claim 7 is characterized in that, described Pneumatic braking system also comprises annunciator (140), and described switch (6) is electrically connected with described annunciator (140).
9. Pneumatic braking system according to claim 7, it is characterized in that, described Pneumatic braking system also comprises differential relay valve (170), this differential relay valve (170) comprises braking during standstill air chamber communication port (171), and this braking during standstill air chamber communication port (171) is communicated with the electromagnetic gas valve admission port (121) of described electromagnetic gas valve (120).
10. Pneumatic braking system according to claim 7 is characterized in that described Pneumatic braking system also comprises two-way valve, and this two-way valve comprises the two-way valve air extractor duct, and this two-way valve air extractor duct is communicated with the admission port of described electromagnetic gas valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201600457U CN202038306U (en) | 2011-05-18 | 2011-05-18 | Air brake valve and air brake system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201600457U CN202038306U (en) | 2011-05-18 | 2011-05-18 | Air brake valve and air brake system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202038306U true CN202038306U (en) | 2011-11-16 |
Family
ID=44965765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201600457U Expired - Fee Related CN202038306U (en) | 2011-05-18 | 2011-05-18 | Air brake valve and air brake system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202038306U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104179745A (en) * | 2014-08-07 | 2014-12-03 | 广东省肇庆方大气动有限公司 | Air channel changeover valve and use method thereof |
| CN105151033A (en) * | 2015-10-08 | 2015-12-16 | 威伯科汽车控制***（中国）有限公司 | Front-axle parking foot brake valve, brake system and detection method of parking brake functions |
| CN107054338A (en) * | 2016-12-27 | 2017-08-18 | 芜湖盛力科技股份有限公司 | A kind of harbour machinery brakes hand braking valve |
| CN109334653A (en) * | 2018-11-12 | 2019-02-15 | 天津清智科技有限公司 | A kind of pilotless automobile chassis braking system backup method |
-
2011
- 2011-05-18 CN CN2011201600457U patent/CN202038306U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104179745A (en) * | 2014-08-07 | 2014-12-03 | 广东省肇庆方大气动有限公司 | Air channel changeover valve and use method thereof |
| CN105151033A (en) * | 2015-10-08 | 2015-12-16 | 威伯科汽车控制***（中国）有限公司 | Front-axle parking foot brake valve, brake system and detection method of parking brake functions |
| CN107054338A (en) * | 2016-12-27 | 2017-08-18 | 芜湖盛力科技股份有限公司 | A kind of harbour machinery brakes hand braking valve |
| CN107054338B (en) * | 2016-12-27 | 2023-10-20 | 芜湖盛力科技股份有限公司 | Manual control brake valve of harbour machinery brake system |
| CN109334653A (en) * | 2018-11-12 | 2019-02-15 | 天津清智科技有限公司 | A kind of pilotless automobile chassis braking system backup method |
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