CN203846895U - Safety protection device of manhole cover of locomotive - Google Patents
Safety protection device of manhole cover of locomotive Download PDFInfo
- Publication number
- CN203846895U CN203846895U CN201420216598.3U CN201420216598U CN203846895U CN 203846895 U CN203846895 U CN 203846895U CN 201420216598 U CN201420216598 U CN 201420216598U CN 203846895 U CN203846895 U CN 203846895U
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- locomotive
- electric lock
- indicator lamp
- battery
- microswitch
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Abstract
The utility model relates to the technical field of locomotive safety, in particular to a safety protection device of a manhole cover of a locomotive. The manhole cover is locked to the top of the locomotive through an electric lock, a collection unit is installed at the top of the locomotive and used for determining whether a locomotive roof power grid has voltage or not and outputting a signal to a controller, and the controller outputs a drive signal so as to open or close the electric lock according to received information. Whether the locomotive roof power grid has voltage or not is determined through the collection unit, motions of the electric lock are executed after processing is conducted through the controller, and human factors are avoided. When the power grid has high voltage, the safety protection device can forbid an operator to open the manhole cover, safety is very high, and the operator is prevented from getting an electric shock.
Description
Technical field
The utility model relates to motorcycle safety technical field, particularly a kind of locomotive manhole cover safety device.
Background technology
China's Electrified Railways is used the high-tension electricity supply of 25 kilovolts, along with popularizing of electric railway, and the life security that the injury of getting an electric shock is jeopardizing rail man.Current locomotive, no matter be diesel locomotive or electric locomotive, on the manhole cover at its locomotive top, all do not configure effective high-voltage safety equipment, for preventing getting an electric shock, conventional way has: each maintenance department often adopts the passive mode of scribbling protection poster and repeating to lock to prevent charged injury; Operating personnel carries out operation in strict accordance with operation procedure, on ground, contact net is carried out to power-off, then gets on the bus and by manual operation locomotive high-voltage alarm, detect contact net and whether have electricity, after confirming there is no electricity, then opens the manhole cover operation of climbing to the top of a mountain.These two kinds of ways all need operating personnel to carry out operation in strict accordance with operation procedure, but consider in daily operation, because needing driver and ground service maintainer, the work such as troubleshooting, maintenance frequently step on roof operation, the carelessness of operating personnel's occasional, in strict accordance with step, do not carry out, the operation once operating personnel climbs to the top of a mountain the in the situation that of roof contact net electrification, the casualty accident of will getting an electric shock, the production safety of serious threat railway interests.
Utility model content
The purpose of this utility model is to provide a kind of locomotive manhole cover safety device, fundamentally stops the hidden danger of getting an electric shock.
For realizing above object, the technical solution adopted in the utility model is: a kind of locomotive manhole cover safety device, manhole cover is locked together in locomotive top by electric lock, locomotive top is provided with collecting unit, described collecting unit is used for obtaining roof electrical network to be had no-voltage and outputs signal to controller, and controller is according to open/sealed described electric lock of the information output drive signal receiving.
Compared with prior art, there is following technique effect in the utility model: by collecting unit, gathers roof electrical network and have or not high pressure, after processing, carries out by controller the action of electric lock, avoided the participation of human factor, when electrical network has high pressure, this device can forbid that operating personnel opens manhole cover, and safety is very high, avoids operating personnel to get an electric shock.
Accompanying drawing explanation
Fig. 1 is theory diagram of the present utility model;
Fig. 2 is circuit theory diagrams of the present utility model;
Fig. 3 is collecting unit structural representation of the present utility model;
Fig. 4 is electric lock structural representation of the present utility model, the open mode that wherein dotted line is door handle.
The specific embodiment
Below in conjunction with Fig. 1 to Fig. 4, the utility model is described in further detail.
Consult Fig. 1, a kind of locomotive manhole cover safety device, manhole cover is locked together in locomotive top by electric lock 10, locomotive top is provided with collecting unit 20, described collecting unit 20 has no-voltage and outputs signal to controller 30 for obtaining roof electrical network, and controller 30 is according to open/sealed described electric lock 10 of the information output drive signal receiving.By electric lock 10, manhole cover is locked together in to locomotive top, when operating personnel need to open, the switch of electric lock 10 is not artificial controlled, but the information collecting according to collecting unit 20 is judged, if roof electrical network has high pressure, controller 30 is not opened electric lock 10, if roof electrical network is without high pressure, controller 30 is opened electric lock 10, and operating personnel carries out operation with regard to the roof that goes that can be safe.By 10 enforcements to electric lock initiatively, control, avoided people for maloperation, safety significantly promotes.
Further, described controller 30 comprises high-voltage detecting circuit 33 and electric lock drive circuit 34, high-voltage detecting circuit 33 for receive the signal of collecting unit 20 output and this signal is processed after output control signals to electric lock drive circuit 34, electric lock drive circuit 34 is according to open/sealed described electric lock 10 of control signal output drive signal.The high-voltage signal that collecting unit 20 collects need to pass through high-voltage detecting circuit 33 judge whether belong to high pressure, and high-voltage detecting circuit 33, according to the difference of result of determination, is exported control signal.The opening and closing of electric lock 10 are all electronic, and some electric lock 10 carries drive circuit, just do not need to arrange electric lock drive circuit 34, only the output of high-voltage detecting circuit 33 need be connected with the input that electric lock 10 carries drive circuit.
Preferably, described controller 30 also comprises power circuit 31, and power circuit 31 comprises battery, microswitch S2, and battery provides electric energy for controller 30, and microswitch S2 controls the break-make of battery and high-voltage detecting circuit 33, electric lock drive circuit 34; Described electric lock 10 comprises door handle 11, and microswitch S2 is arranged on rotating shaft place of door handle 11, and door handle 11 is closed to microswitch S2 in open mode process by closure state, otherwise microswitch S2 disconnects.Under normal conditions, door handle 11 is closure state at place, and microswitch S2 disconnects, and battery is connected disconnection with other circuit in controller 30, stops consuming electric energy; When operating personnel need to climb to the top of a mountain operation, turn the handle 11, door handle 11 is closed by microswitch S2 in the process of rotating, and controller 30 energisings are started working, and do like this and have saved to greatest extent power consumption.The not power consumption of the utility model static state, the common dry cell of a joint can be used and within 1 year, just need to change.Certainly, battery also can charge by locomotive, just repeats no more here.
Consult Fig. 2, Fig. 4, further, in order to guarantee the reliability of controller 30, described controller 30 also comprises that battery undervoltage testing circuit 32 is for detection of the voltage of battery, and battery undervoltage testing circuit 32 comprises indicator lamp LED2, and indicator lamp LED2 is a light emitting diode, when cell voltage is normal, indicator lamp LED2 extinguishes, and during battery undervoltage, indicator lamp LED2 lights.When battery is under-voltage, controller 30 does not have enough energy to go work, electric lock 10 is in locked state, when electrical network has high pressure, electric lock 10, also in locked state, for fear of operating personnel's erroneous judgement, arranges indicator lamp LED2 here, after indicator lamp LED2 lights, represent that battery is under-voltage, rather than electrical network there is high pressure, now need to change battery or battery is charged.
More preferably, in order to make operating personnel clearly see whether controller 30 is in duty, described power circuit 31 comprises indicator lamp LED3, indicator lamp LED3 is a light emitting diode, the positive pole of indicator lamp LED3 is connected with the positive pole of battery by resistance R 9, microswitch S2, and the negative pole of indicator lamp LED3 is connected with the negative pole of battery.Indicator lamp LED3 lights, represent that microswitch S2 is closed, controller 30 is in duty, when if door handle 11 is in open mode, indicator lamp LED3 does not also light, illustrate that door handle 11 microswitch S2 in rotation process does not open or controller 30 produces fault, now need to carry out fault eliminating.
As preferred version of the present utility model, described high-voltage detecting circuit 33 comprises indicator lamp LED1, buzzer HA, and when electrical network has high pressure, indicator lamp LED1 lights and buzzer HA powers alarm, and electrical network is during without high pressure, and indicator lamp LED1 extinguishes and buzzer HA power-off.In order to improve operating personnel's vigilance, when electrical network has high pressure, not only do not open electric lock 10, also by indicator lamp LED1 and buzzer HA, remind.
More preferably, described electric lock drive circuit 34 comprises microswitch S1, relay J and triode Q5, after microswitch S2 closure, is rotated further door handle 11 microswitch S1 closed; The output of high-voltage detecting circuit 34 is connected with the base stage of triode Q5 by microswitch S1, resistance R 5, one end of relay J coil is connected with battery positive voltage by microswitch S2, the other end of coil is connected with the colelctor electrode of triode Q5, the emitter stage of triode Q5 is connected with the negative pole of battery, and during the coil electricity of relay J, electric lock 10 is opened.By microswitch S1 is set, can further reduce electric energy loss, and the closure of microswitch S1, S2, be all in the process of open mode, to be touched by closure state at door handle 11, meet operating personnel's operating habit completely.
Consult Fig. 3, described collecting unit 20 comprises antenna 21, radome box 22 and antenna lid 23; Radome box 22 consists of square floor and two side plates parallel to each other, and the cross section of radome He22Yan locomotive overall length direction is U-shaped, and radome box 22 is made and ground connection by iron sheet; Described antenna 21 is arranged in radome box 22, and antenna 21 is connected with controller 30; Antenna lid 23 is downward opening square box shape, and antenna lid 23 covers are buckled on radome box 22.Two side plates of radome box 22 can be avoided the interference of adjacent railway line electrical network electric field, make antenna 21 only respond to the high voltage electric field of roof electrical network, and the signal that collecting unit 20 is obtained is accurate, reliable, can not produce erroneous judgement.
Below the circuit in conjunction with concrete is described in further detail operating principle of the present utility model:
As shown in Figure 2, Figure 4 shows, when turning the handle 11 time, microswitch S2 is first closed, and circuit working indicator lamp LED3 lights.If now battery tension is normal, triode Q3 conducting, Q4 cut-off, indicator lamp LED2 does not work; When battery is under-voltage, triode Q3 cut-off, Q4 conducting, indicator lamp LED2 lights, and need to change battery.
FET Q1 and comparator IC form high-voltage detecting circuit 33, in the present embodiment, comparator IC is NE555 chip, and electrical network is during without high pressure, not conducting of triode Q2, indicator lamp LED1 and buzzer HA no power, if now continue, pull door handle 11, microswitch S1 is closed, and triode Q5 is because of the high level conducting of comparator IC output, relay J adhesive, just can open electric lock 10 when door handle 11 forwards open mode to.When electrical network has high pressure, triode Q2 conducting, indicator lamp LED1 and buzzer HA energising, send sound and light alarm, if now continue, pull door handle 11, the base stage output low level of comparator IC to triode Q5, triode Q5 cut-off, relay J no power, due to electric lock 10 mechanical self-latching effects, even if door handle 11 turns to open position, electric lock 10 is still in locked state, cannot unblank, avoid operating personnel to get an electric shock.
In this circuit, variable resistor RP1 is for regulating the sensitivity of high-voltage detecting circuit 33, and variable resistor RP2 is for arranging the under-voltage value of battery.
Claims (8)
1. a locomotive manhole cover safety device, it is characterized in that: manhole cover is locked together in locomotive top by electric lock (10), locomotive top is provided with collecting unit (20), described collecting unit (20) has no-voltage and outputs signal to controller (30) for obtaining roof electrical network, and controller (30) is according to open/sealed described electric lock (10) of the information output drive signal receiving.
2. locomotive manhole cover safety device as claimed in claim 1, it is characterized in that: described controller (30) comprises high-voltage detecting circuit (33) and electric lock drive circuit (34), high-voltage detecting circuit (33) for receive the signal of collecting unit (20) output and this signal is processed after output control signals to electric lock drive circuit (34), electric lock drive circuit (34) is according to open/sealed described electric lock (10) of control signal output drive signal.
3. locomotive manhole cover safety device as claimed in claim 2, it is characterized in that: described controller (30) also comprises power circuit (31), power circuit (31) comprises battery, microswitch S2, battery is that controller (30) provides electric energy, the break-make of microswitch S2 control battery and high-voltage detecting circuit (33), electric lock drive circuit (34); Described electric lock (10) comprises door handle (11), and door handle (11) is closed to microswitch S2 in open mode process by closure state, otherwise microswitch S2 disconnects.
4. locomotive manhole cover safety device as claimed in claim 3, it is characterized in that: described controller (30) also comprises that battery undervoltage testing circuit (32) is for detection of the voltage of battery, battery undervoltage testing circuit (32) comprises indicator lamp LED2, indicator lamp LED2 is a light emitting diode, when cell voltage is normal, indicator lamp LED2 extinguishes, and during battery undervoltage, indicator lamp LED2 lights.
5. locomotive manhole cover safety device as claimed in claim 4, it is characterized in that: described power circuit (31) comprises indicator lamp LED3, indicator lamp LED3 is a light emitting diode, the positive pole of indicator lamp LED3 is connected with the positive pole of battery by resistance R 9, microswitch S2, and the negative pole of indicator lamp LED3 is connected with the negative pole of battery.
6. locomotive manhole cover safety device as claimed in claim 4, it is characterized in that: described high-voltage detecting circuit (33) comprises indicator lamp LED1, buzzer HA, when electrical network has high pressure, indicator lamp LED1 lights and buzzer HA powers alarm, electrical network is during without high pressure, and indicator lamp LED1 extinguishes and buzzer HA power-off.
7. locomotive manhole cover safety device as claimed in claim 4, it is characterized in that: described electric lock drive circuit (34) comprises microswitch S1, relay J and triode Q5, after microswitch S2 closure, be rotated further door handle (11) microswitch S1 closed; The output of high-voltage detecting circuit (34) is connected with the base stage of triode Q5 by microswitch S1, resistance R 5, one end of relay J coil is connected with battery positive voltage by microswitch S2, the other end of coil is connected with the colelctor electrode of triode Q5, the emitter stage of triode Q5 is connected with the negative pole of battery, and during the coil electricity of relay J, electric lock (10) is opened.
8. the locomotive manhole cover safety device as described in claim 1-7 any one, is characterized in that: described collecting unit (20) comprises antenna (21), radome box (22) and antenna lid (23); Radome box (22) consists of square floor and two side plates parallel to each other, and radome box (22) is U-shaped along the cross section of locomotive overall length's direction, and radome box (22) is made and ground connection by iron sheet; Described antenna (21) is arranged in radome box (22), and antenna (21) is connected with controller (30); Antenna lid (23) is downward opening square box shape, and antenna lid (23) cover is buckled on radome box (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420216598.3U CN203846895U (en) | 2014-04-29 | 2014-04-29 | Safety protection device of manhole cover of locomotive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420216598.3U CN203846895U (en) | 2014-04-29 | 2014-04-29 | Safety protection device of manhole cover of locomotive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203846895U true CN203846895U (en) | 2014-09-24 |
Family
ID=51559930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420216598.3U Expired - Fee Related CN203846895U (en) | 2014-04-29 | 2014-04-29 | Safety protection device of manhole cover of locomotive |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203846895U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107143223A (en) * | 2017-07-07 | 2017-09-08 | 北京新能源汽车股份有限公司 | A kind of electronic lock detection circuit and electric automobile |
| CN114749279A (en) * | 2022-03-09 | 2022-07-15 | 重庆钢铁股份有限公司 | Safety early warning system and method for electric dust removal device of sintering machine head |
-
2014
- 2014-04-29 CN CN201420216598.3U patent/CN203846895U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107143223A (en) * | 2017-07-07 | 2017-09-08 | 北京新能源汽车股份有限公司 | A kind of electronic lock detection circuit and electric automobile |
| CN107143223B (en) * | 2017-07-07 | 2019-06-25 | 北京新能源汽车股份有限公司 | A kind of electronic lock detection circuit and electric car |
| CN114749279A (en) * | 2022-03-09 | 2022-07-15 | 重庆钢铁股份有限公司 | Safety early warning system and method for electric dust removal device of sintering machine head |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140924 Termination date: 20200429 |