CN204801824U - Prevent crowded fork device - Google Patents
Prevent crowded fork device Download PDFInfo
- Publication number
- CN204801824U CN204801824U CN201520494035.5U CN201520494035U CN204801824U CN 204801824 U CN204801824 U CN 204801824U CN 201520494035 U CN201520494035 U CN 201520494035U CN 204801824 U CN204801824 U CN 204801824U
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- CN
- China
- Prior art keywords
- switch
- circuit
- signal
- aerotron
- shunting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Train Traffic Observation, Control, And Security (AREA)
Abstract
The utility model relates to a prevent crowded fork device, including switch pressure detection module and shunting signal detection module, switch pressure switch is drawn together to switch pressure detection module, and shunting signal detection module includes the shunting signal switch, and switch pressure switch and shunting signal switch connect, and a termination of shunting signal switch is first power extremely, and the other end of shunting signal switch connects to ground through the coil of contactor, and the shunting signal 2 of contactor is used for driving ground electromagnetism jar. When the switch malposition really or shunting signal lamp when bright, ground electromagnetism jar gets electricly, the on -vehicle the coil induction of locomotive to electromagnetism jar signal, the automation of locomotive operation monitoring and controlling device reduces the speed limit value, leaks informaton and blocks the shut down car, guarantee the state of shunting under, the locomotive can not cross the signal of cutting out and crowd switch.
Description
Technical field
The utility model relates to a kind of anti-extrusion turnout device.
Background technology
Safety of Shunting Operation is the persistent ailment of restriction China railways safety and stability development always.Under the state of shunting, locomotive operation monitor device can not identify ground signal, is in no-control state applies, can not produce to block and stop action.Now, locomotive operation is handled by bus attendant completely, and bus attendant is subject to mental emotion, physiological law, and the many factors such as degree of fatigue and burst disease affects, and very easily occurs absent minded, and the safety misadventure of blindly conjesturing motor-car occurs.Light then overrunning of signal interference is transported, and heavy then crowded bad track trouble derailing slides down, and more seriously then invades adjacent line initiation and conflicts.
Summary of the invention
The purpose of this utility model is the defect overcoming prior art, provides a kind of structure simple, can control obtaining of surface em cylinder electric, guarantee that locomotive operation monitor device realizes the anti-extrusion turnout device of emergency according to switch location or shunting signal.
For achieving the above object, the utility model adopts so a kind of anti-extrusion turnout device, comprise railroad switch pressure detection module and shunting signal detection module, described railroad switch pressure detection module draws together railroad switch pressure switch, described shunting signal detection module comprises shunting signal switch, described railroad switch pressure switch and described shunting signal switch also connect, one end of described shunting signal switch is connected to the first power supply, the other end of described shunting signal switch is connected to ground through the coil of contactless switch, and the normally open contact of described contactless switch is in order to drive surface em cylinder.Compared with the prior art; the beneficial effects of the utility model are embodied in: when track switch malposition or Traffic signal bright time; surface em cylinder obtains electric; locomotive vehicle-mounted is coil-induced to electromagnetism cylinder signal; locomotive operation monitor device reduces speed limit automatically; leak informaton and block shutdown car, under guaranteeing the state of shunting, the signal that locomotive can not cross cut out pushes through track switch.
Especially, described shunting signal switch is a photoconductive cell, described shunting signal detection module comprises mu balanced circuit, signal acquisition circuit, 555 circuit and driving circuit, 555 described circuit are connected into Schmidt trigger, second source is through described mu balanced circuit, optical coupling isolation circuit picks out current signal, described current signal is through current-limiting resistance, described photoconductive cell is connected to ground, the common connection end of described current-limiting resistance and described photoconductive cell is connected to the signal input part of 555 described circuit, the signal output part of 555 described circuit picks out to the driving circuit described in rear class.By 555 circuit are arranged to Schmidt trigger pattern, make shunting signal detection module can obtain shunting signal accurately, and provide corresponding output, and the impact of signal can not be disturbed; And the strong and weak electricity of signal acquisition circuit and peripheral circuit is isolated, working power is safe and reliable.
Especially, described driving circuit comprises optocoupler, current-limiting circuit and switching valve, the signal output part of 555 described circuit is connected to the input end of described optocoupler, the output collecting electrode of described optocoupler is connected to described second source, the output emitter-base bandgap grading of described optocoupler is connected to the grid of described switching valve through described current-limiting circuit, diode, mu balanced circuit, and the source electrode of described switching valve is connected to ground, and the drain electrode of described switching valve is connected to the drive end of the coil of described contactless switch through a diode.By the setting of above circuit structure, making the driving of switching valve safer, reliable, can not burn out because of causing compared with heavy current the grid of switching valve.
Especially, described current-limiting circuit comprises the first aerotron and the second aerotron, the base stage of the first described aerotron and the emitter of the second described aerotron also connect, the collecting electrode of the first described aerotron and the base stage of the second described aerotron also connect, connect the first resistance between the emitter of the first described aerotron and the base stage of the first described aerotron, the emitter of the first described aerotron is connected to the output emitter-base bandgap grading of described optocoupler, the collecting electrode of the first described aerotron and the inter-collector of the second described aerotron also connect the second resistance, the collecting electrode of the second described aerotron exports control signal to late-class circuit.By the setting of above circuit structure, used two aerotrons dexterously, carried out the restriction of drive current, structure is simple, and cost is low, satisfactory for result.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of mu balanced circuit, signal acquisition circuit and 555 circuit in the device of the utility model embodiment anti-extrusion turnout;
Fig. 2 is the schematic diagram of driving circuit in the device of the utility model embodiment anti-extrusion turnout;
Fig. 3 is the general principles figure of the utility model embodiment anti-extrusion turnout device.
Detailed description of the invention
As shown in Figure 3, a kind of anti-extrusion turnout device, comprise railroad switch pressure detection module and shunting signal detection module, railroad switch pressure detection module draws together railroad switch pressure switch 1, shunting signal detection module comprises shunting signal switch 2, and railroad switch pressure switch 1 and shunting signal switch 2 also connect, and an end of shunting signal switch 2 is connected to the first power supply DY, the other end of shunting signal switch 2 is connected to ground through the coil of contactless switch JC, and the normally open contact JC-1 of contactless switch is in order to drive surface em cylinder.
As shown in Fig. 1 ~ 2, shunting signal switch 2 is a photoconductive cell R6, shunting signal detection module comprises mu balanced circuit, signal acquisition circuit, 555 circuit and driving circuit, 555 circuit are connected into Schmidt trigger, second source DC110V picks out current signal through mu balanced circuit, optical coupling isolation circuit, current signal is connected to ground through current-limiting resistance R7, photoconductive cell R6, the common connection end of current-limiting resistance R7 and photoconductive cell R6 is connected to the signal input part U1-2 of 555 circuit, and the signal output part U1-3 of 555 circuit picks out the driving circuit to rear class.
Driving circuit comprises optocoupler U3, current-limiting circuit and switch transistor T 1, the signal output part U1-3 of 555 circuit is connected to the input end of optocoupler U3, the output collecting electrode of optocoupler U3 is connected to second source DC110V, the output emitter-base bandgap grading of optocoupler U3 is connected to the grid of switch transistor T 1 through current-limiting circuit, diode D3, mu balanced circuit, the source electrode of switch transistor T 1 is connected to ground, and the drain electrode of switch transistor T 1 is connected to the drive end of the coil of contactless switch JC through a diode D5.
Current-limiting circuit comprises the first aerotron T2 and the second aerotron T3, the base stage of the first aerotron T2 and the emitter of the second aerotron T3 also connect, the collecting electrode of the first aerotron T2 and the base stage of the second aerotron T3 also connect, meet the first resistance R9 between the emitter of the first aerotron T2 and the base stage of the first aerotron T2, the emitter of the first aerotron T2 is connected to the output emitter-base bandgap grading of optocoupler U3, the collecting electrode of the first aerotron T2 and the inter-collector of the second aerotron T3 also meet the second resistance R10, and the collecting electrode of the second aerotron T3 exports control signal to late-class circuit.
Claims (4)
1. an anti-extrusion turnout device, it is characterized in that: comprise railroad switch pressure detection module and shunting signal detection module, described railroad switch pressure detection module draws together railroad switch pressure switch, described shunting signal detection module comprises shunting signal switch, described railroad switch pressure switch and described shunting signal switch also connect, one end of described shunting signal switch is connected to the first power supply, the other end of described shunting signal switch is connected to ground through the coil of contactless switch, and the normally open contact of described contactless switch is in order to drive surface em cylinder.
2. anti-extrusion turnout according to claim 1 device, it is characterized in that: described shunting signal switch is a photoconductive cell, described shunting signal detection module comprises mu balanced circuit, signal acquisition circuit, 555 circuit and driving circuit, 555 described circuit are connected into Schmidt trigger, second source is through described mu balanced circuit, optical coupling isolation circuit picks out current signal, described current signal is through current-limiting resistance, described photoconductive cell is connected to ground, the common connection end of described current-limiting resistance and described photoconductive cell is connected to the signal input part of 555 described circuit, the signal output part of 555 described circuit picks out to the driving circuit described in rear class.
3. anti-extrusion turnout according to claim 2 device, it is characterized in that: described driving circuit comprises optocoupler, current-limiting circuit and switching valve, the signal output part of 555 described circuit is connected to the input end of described optocoupler, the output collecting electrode of described optocoupler is connected to described second source, the output emitter-base bandgap grading of described optocoupler is connected to the grid of described switching valve through described current-limiting circuit, diode, mu balanced circuit, the source electrode of described switching valve is connected to ground, and the drain electrode of described switching valve is connected to the drive end of the coil of described contactless switch through a diode.
4. anti-extrusion turnout according to claim 3 device, it is characterized in that: described current-limiting circuit comprises the first aerotron and the second aerotron, the base stage of the first described aerotron and the emitter of the second described aerotron also connect, the collecting electrode of the first described aerotron and the base stage of the second described aerotron also connect, connect the first resistance between the emitter of the first described aerotron and the base stage of the first described aerotron, the emitter of the first described aerotron is connected to the output emitter-base bandgap grading of described optocoupler, the collecting electrode of the first described aerotron and the inter-collector of the second described aerotron also connect the second resistance, the collecting electrode of the second described aerotron exports control signal to late-class circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520494035.5U CN204801824U (en) | 2015-06-29 | 2015-06-29 | Prevent crowded fork device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520494035.5U CN204801824U (en) | 2015-06-29 | 2015-06-29 | Prevent crowded fork device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204801824U true CN204801824U (en) | 2015-11-25 |
Family
ID=54586692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520494035.5U Expired - Fee Related CN204801824U (en) | 2015-06-29 | 2015-06-29 | Prevent crowded fork device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204801824U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111379893A (en) * | 2020-03-20 | 2020-07-07 | 青岛中加特电气股份有限公司 | Device for controlling electromagnetic valve |
-
2015
- 2015-06-29 CN CN201520494035.5U patent/CN204801824U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111379893A (en) * | 2020-03-20 | 2020-07-07 | 青岛中加特电气股份有限公司 | Device for controlling electromagnetic valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151125 Termination date: 20180629 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |