CN211308547U - High-voltage safety protection device for locomotive skylight - Google Patents
High-voltage safety protection device for locomotive skylight Download PDFInfo
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- CN211308547U CN211308547U CN201922081026.4U CN201922081026U CN211308547U CN 211308547 U CN211308547 U CN 211308547U CN 201922081026 U CN201922081026 U CN 201922081026U CN 211308547 U CN211308547 U CN 211308547U
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Abstract
The utility model relates to a locomotive skylight high pressure safety protection device, including control processor and the pronunciation alarm module, light display module, high pressure sensor module, the trigger button of unblanking, the electric control lock module that are connected with control processor, high pressure sensor module includes non-contact high pressure sensor, and non-contact high pressure sensor is connected to control processor's input through signal filtering plastic unit, signal amplification unit, and non-contact high pressure sensor still is connected to control processor through sensor state feedback module; the electric control lock control module comprises an electric control lock driving unit, and the electric control lock driving unit is connected to the control processor through the electric control lock and the skylight state module which are arranged in sequence in a feedback mode. The utility model provides a locomotive skylight high pressure safety device, electric control lock have locking feedback function, lock automatically, prevent "false lock"; the high-voltage sensor adopts a non-contact type, safety accidents caused by direct contact with high voltage are avoided, and meanwhile, the state feedback is realized, and the fault can be displayed by lamplight.
Description
Technical Field
The utility model relates to a locomotive safety protection technical field especially relates to locomotive skylight high pressure safety device.
Background
In order to protect the safety of maintainers and prevent the locomotive roof from climbing up under the condition that a contact net of the locomotive roof is electrified, the locomotive roof protector is generally provided with a protection device for controlling the opening/closing of a skylight, and is used for reminding an operator of electrification or failure on the contact net through voice or light warning, and the existing protection device is basically provided with a skylight electric control lock, a high-voltage sensor and a voice light warning module and has the following problems: 1. The electric control lock has no feedback function and cannot be automatically locked; 2. the danger coefficient of contact detection of the sensor is large.
SUMMERY OF THE UTILITY MODEL
In order to overcome prior art's the aforesaid not enough, the utility model provides a locomotive skylight high pressure safety device solves the unable automatic technical problem who locks, sensor contact detection danger height in current locomotive skylight electric control lock.
The utility model discloses a realize through following technical scheme:
the locomotive skylight high-voltage safety protection device comprises a control processor, a voice alarm module and a light display module, wherein the voice alarm module and the light display module are connected with the control processor; the electric control lock control module comprises an electric control lock driving unit connected with the control processor, and the electric control lock driving unit is connected to the control processor through the electric control lock and the skylight state module which are arranged in sequence in a feedback mode.
Furthermore, an ADS1115AD conversion logic chip for detecting signals of the input end and the output end of the sensor is arranged in the non-contact high-voltage sensor.
Further, the electric control lock driving unit comprises a Darlington tube ULN2002, and a pull-down resistor is connected to a pin 7 of the Darlington tube ULN 2002; an output pin of the Darlington tube ULN2002 is connected with a relay SRD-05VDC-SL-C, and the output of the relay SRD-05VDC-SL-C is connected to the electric control lock through a freewheeling diode.
Furthermore, the voice alarm module comprises an audio amplification module connected with the control processor, and the output of the audio amplification module is connected to the voice loudspeaker.
Further, light display module includes the light display element who is connected with control processor, light display element is connected with net electric indicator, sensor trouble pilot lamp, power indicator respectively.
Compared with the prior art, the beneficial effects of the utility model reside in that:
the high-pressure safety protection device for the locomotive skylight has the advantages that the adopted control lock has a locking feedback function, and can be automatically locked after the platform door is closed; when the electric control lock is opened and the door is not opened within the set time, the device can control the electric control lock to automatically lock, so as to prevent the electric control lock from being in a false lock state; the high-voltage sensor adopts a non-contact detection mode, so that electric shock safety accidents caused by direct contact with high voltage are avoided, and meanwhile, the non-contact high-voltage sensor has a state feedback function, and the device can display light when the sensor fails; the unlocking trigger button can automatically open the skylight electric control lock when the contact network is in no power.
Drawings
FIG. 1 is a block diagram of a high-voltage safety protection device for a skylight of a locomotive according to an embodiment of the present invention;
fig. 2 is a connection circuit diagram of the ADS1115AD conversion logic chip according to an embodiment of the present invention;
fig. 3 is a circuit diagram of a driving unit of the electric control lock according to the embodiment of the present invention;
fig. 4 is a circuit diagram of the unlocking trigger button according to the embodiment of the present invention.
Detailed Description
The following examples are presented to illustrate certain embodiments of the invention and should not be construed as limiting the scope of the invention. The present disclosure may be modified from materials, methods, and reaction conditions at the same time, and all such modifications are intended to be within the spirit and scope of the present invention.
The locomotive skylight high-voltage safety protection device shown in fig. 1 comprises a control processor, a voice alarm module and a light display module which are connected with the control processor, wherein the control processor is also connected with a high-voltage sensor module, an unlocking trigger button and an electric control lock module, the high-voltage sensor module comprises a non-contact high-voltage sensor, the non-contact high-voltage sensor is connected to the input end of the control processor through a signal filtering and shaping unit and a signal amplifying unit, and the non-contact high-voltage sensor is also connected to the control processor through a sensor state feedback module; the electric control lock control module comprises an electric control lock driving unit connected with the control processor, the electric control lock driving unit is connected to the control processor through an electric control lock and a skylight state module which are sequentially arranged, the electric control lock is provided with a magnetic induction circuit, when the electric control lock body is separated from the electric control lock catch, a magnetic induction element conducts a door magnetic switch, the electric control lock feeds back a high-level signal to the control processor, and the control processor can judge whether the skylight is closed or not through the feedback signal; the voice alarm module comprises an audio amplification module connected with the control processor, and the output of the audio amplification module is connected to the voice loudspeaker; the lamplight display module comprises a lamplight display unit connected with the control processor, and the lamplight display unit is respectively connected with the network power indicator lamp, the sensor fault indicator lamp and the power indicator lamp; after the power supply is powered on, the power supply indicator lamp in the power supply indicator lamp acquisition device system is lightened when the power supply is normal, and when the system power supply fails, the power supply indicator lamp is turned off to prompt the system failure; the non-contact high-voltage sensor detects a high-voltage electromagnetic signal of a roof contact net, the signal is processed into a direct-current signal which can be identified by the operational amplifier through the filter shaping circuit, the operational amplifier amplifies the acquired weak signal and transmits the amplified weak signal to the control processor, and the operational processor drives a net electricity indicator lamp of the light display part to flicker after detecting the high-voltage signal so as to remind an operator of electrifying the contact net; when the non-contact high-voltage sensor breaks down, fault information is transmitted to the control processor, and when the control processor detects a sensor fault signal, the sensor fault indicating lamp of the light display part is driven to flicker, so that the fault of the high-voltage sensor is prompted.
The ADS1115AD conversion logic chip for detecting the signals of the input and output ends of the sensor is arranged in the non-contact high-voltage sensor, as shown in FIG. 2, the self fault of the sensor is judged by detecting the signal comparison between the input end and the output end of the sensor, and the sensor outputs a level signal to the control processor after the fault.
As shown in fig. 3, the electric control lock driving unit includes a darlington tube ULN2002, and a pull-down resistor is connected to a 7 pin of the darlington tube ULN 2002; an output pin of the Darlington tube ULN2002 is connected with a relay SRD-05VDC-SL-C, and the output of the relay SRD-05VDC-SL-C is connected to the electric control lock through a freewheeling diode so as to drive the electric control lock; the base electrode of the Darlington tube is connected with a resistor in series, can be directly connected with a TTL/COMS circuit under the working voltage of 5V, and can directly process data which needs a standard logic buffer to process originally. The voltage resistance of the circuit can reach 50V, which is far higher than the 24V power supply voltage of the system, and the stability of the device is ensured. Compared with the traditional field effect transistor driving circuit, the circuit has higher integration level and more stable performance, and reduces the phenomenon of misoperation of the electric control lock.
The unlocking trigger button is shown in fig. 4, and the operator can unlock the door when entering or exiting the door respectively.
The specific working process is as follows: when non-contact high voltage transducer detected there was the electricity on the touch screen, if when unblanking trigger button moved, control processor was through the signal remove tremble the processing back, sent audio signal to audio amplification unit, amplified the audio frequency after-treatment and then driven voice loudspeaker and send "there is the electricity danger, the speech prompt who does not need to be close to" reminds the operation personnel to have the electricity on the touch screen, can not open the skylight, and control processor locking electric control lock prevents that personnel from opening the skylight of roof by mistake simultaneously.
When a contact network on the roof is not electrified, if the unlocking trigger button acts, the control processor starts the electric control lock driving unit to open the electric control lock, and at the moment, an operator can normally open the skylight and get on the roof for operation.
The electric control lock feeds back a skylight state signal to the control processor after the skylight is opened, when an operator finishes roof operation and the skylight is not closed or is not closed in place, if the locomotive enters a contact network electrified area, the control processor transmits an audio signal to the audio amplification unit, the audio amplification post-processing drives the voice loudspeaker to send out a voice prompt of ' electrified danger and ' no approach ', and the voice alarm prompt is closed by the control processor until the skylight of the locomotive is closed.
When the contact network is electroless, the operating personnel press the trigger button of unblanking, and the control treater controls electric control lock drive unit to open the electric control lock after the signal shivering is handled, and the control treater discerns that the electric control lock is opened for a long time, and when the skylight was not opened, the control treater will be automatic locking skylight lock once more, prevents that the locomotive skylight is in "false lock" state, and the operating personnel mistake is stepped on the roof and takes place the incident.
When the system is in power failure or the controller is damaged and cannot work normally, a key can be inserted into a lock hole of the electric control lock to rotate 90 degrees in a counter clock mode, and then the guardrail door can be opened by screwing an unlocking knob on the electric control lock to carry out roof operation.
In conclusion, the locomotive skylight high-voltage safety protection device can be used for detecting whether a locomotive roof contact net is electrified or not, can intelligently control the opening and closing states of the electric control lock on the locomotive skylight, reflects whether the locomotive roof is safe or not through the voice alarm, and prevents the locomotive roof from getting on when the locomotive roof contact net is electrified to cause an electric shock accident.
The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.
Claims (5)
1. The locomotive skylight high-voltage safety protection device comprises a control processor, and a voice alarm module and a light display module which are connected with the control processor, and is characterized in that the control processor is also connected with a high-voltage sensor module, an unlocking trigger button and an electric control lock module, wherein the high-voltage sensor module comprises a non-contact high-voltage sensor, the non-contact high-voltage sensor is connected to the input end of the control processor through a signal filtering and shaping unit and a signal amplifying unit, and the non-contact high-voltage sensor is also connected to the control processor through a sensor state feedback module; the electric control lock control module comprises an electric control lock driving unit connected with the control processor, and the electric control lock driving unit is connected to the control processor through the electric control lock and the skylight state module which are arranged in sequence in a feedback mode.
2. The locomotive skylight high-voltage safety protection device according to claim 1, wherein an ADS1115AD conversion logic chip for detecting signals at the input and output ends of the sensor is arranged in the non-contact high-voltage sensor.
3. The locomotive skylight high-voltage safety protection device according to claim 1, wherein said electrically controlled lock driving unit comprises a darlington tube ULN2002, and a pull-down resistor is connected to a 7 pin of said darlington tube ULN 2002; an output pin of the Darlington tube ULN2002 is connected with a relay SRD-05VDC-SL-C, and the output of the relay SRD-05VDC-SL-C is connected to the electric control lock through a freewheeling diode.
4. The locomotive skylight high pressure safety guard according to any of claims 1-3, characterized in that said audio alarm module comprises an audio amplification module connected to a control processor, the output of said audio amplification module being connected to a voice speaker.
5. The locomotive skylight high-voltage safety protection device according to any one of claims 1-3, wherein the light display module comprises a light display unit connected with the control processor, and the light display unit is respectively connected with a power grid indicator lamp, a sensor fault indicator lamp and a power supply indicator lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922081026.4U CN211308547U (en) | 2019-11-27 | 2019-11-27 | High-voltage safety protection device for locomotive skylight |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922081026.4U CN211308547U (en) | 2019-11-27 | 2019-11-27 | High-voltage safety protection device for locomotive skylight |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211308547U true CN211308547U (en) | 2020-08-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922081026.4U Active CN211308547U (en) | 2019-11-27 | 2019-11-27 | High-voltage safety protection device for locomotive skylight |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211308547U (en) |
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2019
- 2019-11-27 CN CN201922081026.4U patent/CN211308547U/en active Active
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