CN102556108B - Electromagnetic valve for train tail device - Google Patents
Electromagnetic valve for train tail device Download PDFInfo
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- CN102556108B CN102556108B CN201210038923.7A CN201210038923A CN102556108B CN 102556108 B CN102556108 B CN 102556108B CN 201210038923 A CN201210038923 A CN 201210038923A CN 102556108 B CN102556108 B CN 102556108B
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Abstract
An electromagnetic valve for a train tail device comprises an electromagnetic valve cavity, an air inlet pipe, a pilot mechanism and at least two spools, wherein the air inlet pipe and the pilot mechanism are mounted on the electromagnetic valve cavity, and the spools are mounted in the electromagnetic valve cavity. The pilot mechanism comprises a pilot valve and an electromagnetic coil acting to the pilot valve, and each spool comprises a piston and a valve. The electromagnetic coil can drive the pilot valve to be switched on, so that air from the air inlet pipe can enter the electromagnetic valve cavity and drive the spools to act. By the aid of the at least two spools arranged in the electromagnetic valve cavity, when one of the spools cannot act due to faults, the other one can be switched on and off normally, and thereby air exhaust can be realized and the requirements of emergency brake of a train can be met.
Description
Technical field
The present invention relates to a kind of electromagnetic valve, be specifically related to a kind of electromagnetic valve for passenger train tail device.
Background technology
The disconnection of last vehicle of train compartment is major safety risks in train operation, often has the accident of this respect to occur in recent years.For eliminating safe hidden trouble, ensureing the traffic safety of train, generally have employed the measure of installing wind pressure alarm equipment at last vehicle of train.When adopting above-mentioned design plan, general needs mounts a train tail apparatus at train trailer.This train tail apparatus carries out communication by radio station and locomotive, thus realizes multiple function, such as, show the wind pressure value of last vehicle of train, confirm the integraty of train, and carries out automatically detecting to the leakage of airduct.This train tail apparatus is also referred to as train tail host.
In the prior art, in order to ensure passenger train traffic safety, can redesign train tail host.Such as, when happening suddenly emergency case, train operator sends instruction by control capsule, and the electromagnetic valve of instruction passenger train tail device assists air draft to brake, thus triggers the emergency braking of train.
But the passenger train broad categories run at present, effective air draft bore of the electromagnetic valve of the train used in railway visitor tail apparatus is little, and it only can the emergency braking requirement of triggering part train, poor universality.
Therefore, the electromagnetic valve for train visitor tail apparatus providing a kind of emergency braking being applicable to all passenger trains to require is needed.
Summary of the invention
For above technical matters, the invention provides a kind of electromagnetic valve for passenger train tail device, comprising: electromagnetic valve cavity; Be arranged on the air inlet pipe on described electromagnetic valve cavity and pilot mechanism, described pilot mechanism comprises priority valve and acts on the magnet coil of described priority valve; Be arranged on the spool in described electromagnetic valve cavity, described spool comprises piston and valve.Described magnet coil can drive described priority valve to open, and the gas from described air inlet pipe can be entered in described electromagnetic valve cavity and cause described valve core movement.Wherein, in described electromagnetic valve cavity, at least two spools are provided with.
In one embodiment, described spool comprises piston and valve, described electromagnetic valve cavity comprises the piston cavity for holding described piston and the valve cavity for holding described valve, and described valve is normally closed on the aperture being communicated with described piston cavity and valve cavity.
In one embodiment, when described priority valve is opened, described gas enters in described piston cavity, drives described valve motion and said ports.
In one embodiment, described pilot mechanism comprises at least two induction openings.
In one embodiment, effective air draft bore of described electromagnetic valve is more than or equal to 15mm.
In one embodiment, described pilot mechanism comprises at least two priority valves.
In one embodiment, the quantity of described magnet coil is equal with the quantity of described priority valve.
In one embodiment, in described electromagnetic valve cavity, be also provided with the sensor for gathering gas circuit wind pressure value.
Double spool design is adopted according to the electromagnetic valve for passenger train tail device of the present invention.Like this, when one of them spool because of fault cannot action time, another still can realize normal opening and closing function, thus produces air draft action.Like this, even if one of them spool et out of order, the emergency braking requirement of train can also be met.
In addition, two induction openings are comprised according to the pilot mechanism of electromagnetic valve of the present invention.Like this, even if there is an induction opening to be plugged, another one induction opening also can produce air draft action by driven electromagnetic valve.Therefore, even if when an induction opening is blocked, the emergency braking requirement of train can also be met wherein.
In addition, simple and reasonable according to electromagnetic valve of the present invention, and to be driven by double copies and air discharge structure achieves very high safety and reliability.The compact conformation of this electromagnetic valve, volume is little, can be arranged on easily in the train tail apparatus of existing passenger vehicle.
Accompanying drawing explanation
Fig. 1 is the front elevation according to the electromagnetic valve for passenger train tail device of the present invention;
Fig. 2 is the left view of electromagnetic valve shown in Fig. 1;
Fig. 3 is each exploded view of electromagnetic valve shown in Fig. 1;
Fig. 4 shows the concrete structure of spool;
Fig. 5 is the cutaway view of electromagnetic valve shown in Fig. 1, shows its off-position; With
Fig. 6 is the cutaway view of electromagnetic valve shown in Fig. 1, shows its "on" position.
Detailed description of the invention
To come that the invention will be further described hereinafter by reference to the accompanying drawings.
As illustrated in fig. 1 and 2, according to the invention provides a kind of electromagnetic valve 100 for passenger train tail device.This electromagnetic valve 100 is fixed in passenger train tail device, and working pressure range is 0.15 ~ 0.7MPa, and employing is electric, pneumatic to be jointly controlled and internal pilot unlatching exhaust way.Electromagnetic valve 100 mainly comprises the parts such as magnet coil 1, pilot mechanism 2, air inlet pipe 3 and electromagnetic valve cavity 4, spool 5 and sensor 8.
Show the decomposition view of each parts of electromagnetic valve 100 in figure 3.As shown in the figure, pilot mechanism 2 is arranged on electromagnetic valve cavity 4 by seal ring 18 and bolt 20, is arranged on the top of electromagnetic valve cavity 4 in the illustrated embodiment.Priority valve 25 (see Figure 4 and 5) is provided with in pilot mechanism 2.Magnet coil 1 is arranged on pilot mechanism 2.In addition, there is also mounted air inlet pipe 3 at the upper side of electromagnetic valve cavity 4, it is connected with the air main (not shown) of passenger train.
In electromagnetic valve cavity 4, be provided with spool 5, it comprises piston 6 and valve 7, as shown in Figure 4.Electromagnetic valve cavity 4 is divided into two parts, and namely valve 7 is in valve cavity 30 wherein and piston 6 and is in plunger shaft 35 wherein, and both is communicated with by aperture 28, as shown in Figures 4 and 5.Valve 7 is supported by valve rack 12, and piston 6 is spacing by piston packing block 13.Good spacing in order to realize, at valve rack 12 and piston packing block 13 place, circlip for bore 16 and 19 also can be set.In order to realize good sealing, seal ring (not indicating in figure) also can be set in the Baltimore groove of valve rack 12 and piston packing block 13.
The sensor 8 for gathering gas circuit wind pressure value is also provided with in cavity 4.Sensor 8 is installed by sensor seal gasket 9, sensor backing plate 10 and sensor pressing plate 11.Also lower air draft block 14 and sensor shield 15 is separately installed with by bolt 20 and 21 in the bottom of cavity 4.When gas enters after in valve cavity 30, sensor 8 can detect atmospheric pressure value, and by the read-out being connected to circuit card, this atmospheric pressure value is supplied to operating personal.
Fig. 5 shows the off-position of electromagnetic valve 100.As shown in Figure 5, the air inlet pipe 3 of electromagnetic valve 100 is connected with the air main of passenger train, and the air pressure in the air main of passenger train can be entered in the valve cavity 30 of electromagnetic valve through air inlet pipe 3.Air pressure in air main is such as 0.6MPa.This air pressure produces thrust, valve 7 is fitted tightly on the aperture 28 of cavity 4, guarantees that electromagnetic valve 100 is in failure-free normally off, prevent gas pressure leak.Meanwhile, in valve cavity, the air pressure of 30 enters in pilot mechanism 2.But the priority valve 25 now in pilot mechanism 2, because being in normally off by spring pressure, therefore can prevent gas pressure leak.
Fig. 6 shows the "on" position of electromagnetic valve 100.When passenger train burst emergency, the control capsule of operating personal operation locomotive, sends air draft instruction.Now, passenger train tail device impels the magnet coil 1 of electromagnetic valve 100 to be energized, and magnet coil 1 is promoted by magnetically-actuated priority valve 25, thus makes the air pressure in air main can enter piston cavity 35 by priority valve.Owing to there is area pressure difference between valve 7 and piston 6, therefore piston 6 and valve 7 can overcome the application force of retracing spring 17 and be moved to the left, and valve 7 is opened.Now, air main air pressure realizes air draft, as shown in the direction of arrow in figure by the exhaust outlet 40 of electromagnetic valve 100.
Otherwise when electromagnetic valve 100 power-off, the priority valve 25 in pilot mechanism 2 is because closing by spring pressure, and the air pressure in plunger shaft 35 is discharged by magnet coil 1.Now, move right under the effect of the air main air pressure of spool 5 in valve cavity 30 and retracing spring 17, valve 7 is closed.
As shown in Fig. 3 to 6, the electromagnetic valve cavity 4 according to electromagnetic valve 100 of the present invention is dual chamber structure, is wherein provided with two spools 5.Like this, when one of them spool because of fault cannot action time, another still can realize normal opening and closing function, thus produces air draft action.Like this, even if one of them spool et out of order, the emergency braking requirement of train can also be met.
In this case, two magnet coils 1 can be set.Meanwhile, pilot mechanism 2 comprises two priority valves 25.Each magnet coil 1 works to a corresponding priority valve 25.
Usually all can have impurity in the air main of train, therefore when electromagnetic valve 100 air draft, impurity is easily along with air-flow is mixed in electromagnetic valve cavity 4.The pilot mechanism of the electromagnetic valve 100 of current use is only provided with an induction opening, if impurity blocks this induction opening, then electromagnetic valve 100 can not be driven to carry out air draft.Therefore, in one embodiment, two induction openings are comprised similarly according to the pilot mechanism 2 of electromagnetic valve 100 of the present invention.Therefore, air main air pressure can enter in pilot mechanism 2 by 30 these two induction openings of process in valve cavity.Like this, even if there is an induction opening to be plugged, another one induction opening also can produce air draft action by driven electromagnetic valve 100.Therefore, even if when an induction opening is blocked, the emergency braking requirement of train can also be met wherein.
In a specific embodiment, the effective air draft bore according to single cavity of electromagnetic valve 100 of the present invention is more than or equal to 11mm, and effective air draft bore of dual chamber is more than or equal to 15mm.This design can meet the needs of most passenger train.
Simple and reasonable according to electromagnetic valve of the present invention, and to be driven by double copies and air discharge structure achieves very high safety and reliability.In addition, the compact conformation of this electromagnetic valve, volume is little, can be arranged on easily in the train tail apparatus of existing passenger vehicle.
Easy understand, although be illustrated for the structure of double spool and two induction opening hereinbefore, but the quantity of spool and induction opening also can needs as the case may be and suitably changing, such as, be three or more individual.
The foregoing is only the preferred embodiment of the present invention; but scope is not limited thereto; any those skilled in the art, in technical scope disclosed by the invention, can easily carry out changing or changing, and this change or change all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claims.
Claims (7)
1., for an electromagnetic valve for passenger train tail device, comprising:
Electromagnetic valve cavity;
Be arranged on the air inlet pipe on described electromagnetic valve cavity and pilot mechanism, described pilot mechanism comprises priority valve and acts on the magnet coil of described priority valve; With
Be arranged on the spool in described electromagnetic valve cavity, described spool comprises piston and valve,
Wherein, described magnet coil can drive described priority valve to open, and the gas from described air inlet pipe can be entered in described electromagnetic valve cavity and cause described valve core movement,
It is characterized in that, at least two spools are provided with in described electromagnetic valve cavity, and described electromagnetic valve cavity comprises the piston cavity for holding described piston and the valve cavity for holding described valve, described valve is normally closed on the aperture being communicated with described piston cavity and valve cavity
When needs air draft, described magnet coil drives described priority valve to open, make the gas in described air inlet pipe enter described piston cavity by described priority valve, and promote valve core movement described at least one, make the described valve open of spool described at least one to realize air draft.
2. electromagnetic valve according to claim 1, is characterized in that, when described priority valve is opened, described gas enters in described piston cavity, drives described valve motion and said ports.
3. electromagnetic valve according to claim 1 and 2, is characterized in that, described pilot mechanism comprises at least two induction openings.
4. electromagnetic valve according to claim 1 and 2, is characterized in that, effective air draft bore of described electromagnetic valve is more than or equal to 15mm.
5. electromagnetic valve according to claim 1 and 2, is characterized in that, described pilot mechanism comprises at least two priority valves.
6. electromagnetic valve according to claim 5, is characterized in that, the quantity of described magnet coil is equal with the quantity of described priority valve.
7. electromagnetic valve according to claim 1 and 2, is characterized in that, is also provided with the sensor for gathering gas circuit wind pressure value in described electromagnetic valve cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210038923.7A CN102556108B (en) | 2012-01-20 | 2012-02-20 | Electromagnetic valve for train tail device |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220027618.3 | 2012-01-20 | ||
| CN2012200276183 | 2012-01-20 | ||
| CN201220027618 | 2012-01-20 | ||
| CN201210038923.7A CN102556108B (en) | 2012-01-20 | 2012-02-20 | Electromagnetic valve for train tail device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102556108A CN102556108A (en) | 2012-07-11 |
| CN102556108B true CN102556108B (en) | 2015-05-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210038923.7A Active CN102556108B (en) | 2012-01-20 | 2012-02-20 | Electromagnetic valve for train tail device |
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| CN (1) | CN102556108B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105276237B (en) * | 2015-11-17 | 2017-07-25 | 天津铁路信号有限责任公司 | A kind of 3-position-3-way electric-control stop valve |
| CN106064635B (en) * | 2016-07-20 | 2018-08-07 | 克诺尔车辆设备(苏州)有限公司 | Parking brake control unit with long-range mitigation capability |
| CN109955856B (en) * | 2017-12-25 | 2024-01-09 | 北京世纪东方智汇科技股份有限公司 | Train tail tuber pipe installation component |
| CN112303257B (en) * | 2020-10-31 | 2022-05-10 | 江苏明通福路流体控制设备有限公司 | High-universality valve with lock |
| CN112455407B (en) * | 2020-12-09 | 2022-05-03 | 成都威奥畅通科技有限公司 | Method for suppressing train tail host exhaust echo |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3729222A1 (en) * | 1987-09-02 | 1989-03-16 | Wabco Westinghouse Fahrzeug | ELECTROMAGNETICALLY ACTUABLE VALVE DEVICE |
| CN2244636Y (en) * | 1995-12-08 | 1997-01-08 | 天津市汉沽区液压气动件厂 | Pilot-operated electromagnetic valve |
| CN101508307A (en) * | 2009-03-25 | 2009-08-19 | 南京航空航天大学 | Rail vehicle non-skid vent valve based on double-piezoelectricity guide valve |
| CN101576170A (en) * | 2008-12-19 | 2009-11-11 | 上海电气液压气动有限公司 | Safety valve |
| CN201826916U (en) * | 2010-09-15 | 2011-05-11 | 北汽福田汽车股份有限公司 | Electromagnetic valve, exhaust brake valve and exhaust brake system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08309684A (en) * | 1995-05-16 | 1996-11-26 | Myotoku Kk | Vacuum sucker with exhaust flow adjusting mechanism |
-
2012
- 2012-02-20 CN CN201210038923.7A patent/CN102556108B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3729222A1 (en) * | 1987-09-02 | 1989-03-16 | Wabco Westinghouse Fahrzeug | ELECTROMAGNETICALLY ACTUABLE VALVE DEVICE |
| CN2244636Y (en) * | 1995-12-08 | 1997-01-08 | 天津市汉沽区液压气动件厂 | Pilot-operated electromagnetic valve |
| CN101576170A (en) * | 2008-12-19 | 2009-11-11 | 上海电气液压气动有限公司 | Safety valve |
| CN101508307A (en) * | 2009-03-25 | 2009-08-19 | 南京航空航天大学 | Rail vehicle non-skid vent valve based on double-piezoelectricity guide valve |
| CN201826916U (en) * | 2010-09-15 | 2011-05-11 | 北汽福田汽车股份有限公司 | Electromagnetic valve, exhaust brake valve and exhaust brake system |
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| CN102556108A (en) | 2012-07-11 |
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Effective date of registration: 20180111 Address after: 102600 Beijing city Daxing District Zhongguancun science and Technology Park Daxing bio pharmaceutical industry base, No. 21 courtyard, Tianrong street, building No. 1 Patentee after: Beijing Century Dongfang Communication Equipment Co., Ltd. Address before: 100070 Beijing, Fengtai District, Fengtai District, Fourth Ring West Road, No. twelve district, 31 building century Eastern Mansion Patentee before: Beijing Century East China Railway Technology Co., Ltd. |
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Address after: 102600 Beijing Daxing District Zhongguancun Science and Technology Park Daxing Biomedical Industry Base, No. 1 Building, 21 Tianrong Street Patentee after: Beijing Century Oriental Zhihui Technology Co.,Ltd. Address before: 102600 Beijing Daxing District Zhongguancun Science and Technology Park Daxing Biomedical Industry Base, No. 1 Building, 21 Tianrong Street Patentee before: BEIJING CENTURY DONGFANG COMMUNICATION EQUIPMENT Co.,Ltd. |