CN202926392U - Test and failure warning device of coal mine air quantity sensor - Google Patents
Test and failure warning device of coal mine air quantity sensor Download PDFInfo
- Publication number
- CN202926392U CN202926392U CN 201220534070 CN201220534070U CN202926392U CN 202926392 U CN202926392 U CN 202926392U CN 201220534070 CN201220534070 CN 201220534070 CN 201220534070 U CN201220534070 U CN 201220534070U CN 202926392 U CN202926392 U CN 202926392U
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- circuit board
- coal mine
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Abstract
The utility model provides a test and failure warning device of a coal mine air quantity sensor and belongs to the field of coal mine safety. The test and failure warning device of the coal mine air quantity sensor is characterized by comprising a circuit board (1) and a circuit fixed on the circuit board, wherein the circuit is composed of a buzzer U1, a light emitting diode D1, a resistor R1 and a triode Q1. The anode of a detecting end (4) is connected with the light emitting diode D1 in series and then connected with the collector electrode of the triode Q1, the emitting electrode of the triode Q1 is connected with the buzzer U1 in series and then connected with the cathode of the detecting end (4), and the resistor R1 is connected between the base electrode and the collector electrode of the triode Q1 in series. The test and failure warning device of the coal mine air quantity sensor has the advantages of reflecting working conditions of an underground air duct in real time by means of sound-light alarm and greatly eliminating underground potential risk.
Description
Technical field
The test of colliery air flow sensor and accident warning device belong to the safety of coal mines field.Be specifically related to a kind of the air flow sensor duty be detected, after breaking down and the device of alarm.
Background technology
Air flow sensor is for various tunnels under coal mine, the air port, and the wind speed that ventilating fan well head etc. is located, the detection of air quantity is with the visual plant of the safety in production of guaranteeing the colliery.When air flow sensor monitored the on-the-spot air duct in down-hole and causes air quantity to diminish due to fault, air flow sensor started the lock between air and electricity function, cut off the power supply of whole electric equipment of non-intrinsically safe safety type in the blowing-out district, prevented electric generation electric spark actuation gas.And the air quantity state sensor in the current safety monitoring system that uses is that the ground monitoring main frame can be reported to the police, the down-hole on-the-spot what show also do not have, can't show at all whether air duct disconnects, air quantity diminishes or be not closed completely, the situation such as damage; Simultaneously can not judge whether the lock between air and electricity function is effective, can only whether extinguish by the illuminating lamp of watching driving face to judge.Thereby bring very large inconvenience for producing, stayed simultaneously very large potential safety hazard.
Summary of the invention
The technical problems to be solved in the utility model is: overcome the deficiencies in the prior art, a kind of colliery air flow sensor test and accident warning device that can in time reflect the duty of air duct under colliery by sound and light alarm, eliminate to a great extent potential safety hazard under the colliery is provided.
The technical scheme that its technical problem that solves the utility model adopts is: this colliery air flow sensor test and accident warning device, it is characterized in that: comprise circuit board and the circuit that is fixed on circuit board, circuit is comprised of buzzer U1, light emitting diode D1, resistance R 1 and triode Q1, be connected with the colelctor electrode of triode Q1 after the positive pole series connection light emitting diode D1 of test side, the negative pole that connects the test side after the emitter stage series connection buzzer U1 of triode Q1, parallel resistance R1 between the base stage of triode Q1 and colelctor electrode.
Described circuit board is rectangular plate shape, and alarm lamp is arranged on the centre position of circuit board, and alarm is arranged on the top of alarm lamp, and the test side is arranged on the below of alarm lamp, and control valve is arranged on the left side of test side.
Pad on described circuit board has carried out the sealing processing.
Air flow sensor is to have used tongue tube as operative body.One end of tongue tube has a clip, and there are a Gen Changkai reed and a normally closed reed in the right.Clip contacts with normally closed reed under normal circumstances, when the magnetic field in the zone at tongue tube place reaches some strength, clip and normally closed reed disconnect and with normally closed reed adhesive, when tongue tube breaks away from high-intensity magnetic field, recover again original state.
In practical operation, positive and negative test side of the present utility model is connected on respectively clip and the normally closed reed two ends of tongue tube.When air flow sensor detects air duct in colliery when working properly, produce magnetic field in air flow sensor, the clip of the tongue tube in air flow sensor contacts with often driving reed, and the utility model is not worked; Undesired and when being detected by air flow sensor when air duct work, the air flow sensor action, the clip of tongue tube wherein with often drive reed and break away from and contact with normally closed reed, with the utility model triggering, the utility model sends alarm signal simultaneously.
Compared with prior art, the beneficial effect that has of the present utility model is:
1, the utility model can in time reflect by the form of sound and light alarm the duty of air duct under colliery, avoided whether extinguishing to judge whether out-of-work drawback of air duct by the illuminating lamp of watching driving face, eliminated to a great extent the potential safety hazard under the colliery;
2, utilize simultaneously acoustooptic form to report to the police, effectively avoided in the situation that the possibility of error in judgement can appear when using in the large scene of working environment noise and circumstance complication;
3, saved product casing, made simple in structurely, saved the space, be convenient to fix;
4, the pad on circuit board has all carried out the sealing processing, has avoided the erosion of moisture under the colliery, has avoided simultaneously the possibility of short circuit.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is the utility model circuit theory diagrams.
Wherein: 1, circuit board 2, alarm 3, alarm lamp 4, test side 5, control valve.
The specific embodiment
Fig. 1 ~ 2nd, most preferred embodiment of the present utility model is described further below in conjunction with 1 ~ 2 pair of the utility model of accompanying drawing.
As shown in Figure 1, circuit board 1 is rectangular plate shape, and alarm lamp 3 is arranged on the centre position of circuit board 1, alarm 2 is arranged on the top of alarm lamp 3, test side 4 is arranged on the below of alarm lamp 3, and control valve 5 is arranged on the left side of test side 4, and test side 4 comprises anodal and negative pole the two poles of the earth.
As shown in Figure 2, be connected with the colelctor electrode of triode Q1 after the anode of the anodal connecting luminous diode D1 of test side 4, be connected with the negative pole of test side 4 after the emitter stage series connection buzzer U1 of triode Q1, parallel resistance R1 between the base stage of triode Q1 and colelctor electrode.
In the utility model, what control valve 5 adopted is triode, can also adopt other forms of trigger element, as IGCT; Alarm 2 has adopted buzzer U1, and alarm lamp 3 has adopted light emitting diode D1. the utility model structurally to omit shell simultaneously, and components and parts directly are welded on circuit board, has saved the space and has been convenient to the fixing of product.Carried out the sealing processing in the components and parts bond pad locations, not only can prevent the generation of short circuit phenomenon but also can avoid the erosion of moisture under colliery.
The specific works process is as follows: when Coal Mine Safety Monitoring System need to detect, the positive pole of the test side 4 of this device is connected in parallel on the clip of the tongue tube in air flow sensor, and the negative pole of test side is connected in parallel on the normally closed reed of the tongue tube in air flow sensor.When the air duct in colliery works, air flow sensor works and produces magnetic field, clip and normally closed reed break away from, when the air duct in colliery disconnects or air quantity when reducing, magnetic field intensity in air flow sensor diminishes, and clip contacts with normally closed reed with often opening the reed disengaging, simultaneously the utility model is triggered, the concurrent visual alarm of speaking in time reminds the staff under colliery to keep in repair.
The above, it is only preferred embodiment of the present utility model, be not to be the utility model to be done the restriction of other form, any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the equivalent embodiment of equivalent variations.But every technical solutions of the utility model content that do not break away to any simple modification, equivalent variations and remodeling that above embodiment does, still belongs to the protection domain of technical solutions of the utility model according to technical spirit of the present utility model.
Claims (2)
1. the colliery air flow sensor is tested and accident warning device, it is characterized in that: comprise circuit board (1) and be fixed on circuit on circuit board (1), circuit is comprised of buzzer U1, light emitting diode D1, resistance R 1 and triode Q1, be connected with the colelctor electrode of triode Q1 after the positive pole series connection light emitting diode D1 of test side (4), the negative pole that connects test side (4) after the emitter stage series connection buzzer U1 of triode Q1, parallel resistance R1 between the base stage of triode Q1 and colelctor electrode.
2. the test of colliery according to claim 1 air flow sensor and accident warning device, it is characterized in that: described circuit board (1) is rectangular plate shape, alarm lamp (3) is arranged on the centre position of circuit board (1), alarm (2) is arranged on the top of alarm lamp (3), test side (4) is arranged on the below of alarm lamp (3), and control valve (5) is arranged on the left side of test side (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220534070 CN202926392U (en) | 2012-10-18 | 2012-10-18 | Test and failure warning device of coal mine air quantity sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220534070 CN202926392U (en) | 2012-10-18 | 2012-10-18 | Test and failure warning device of coal mine air quantity sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202926392U true CN202926392U (en) | 2013-05-08 |
Family
ID=48216366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220534070 Expired - Fee Related CN202926392U (en) | 2012-10-18 | 2012-10-18 | Test and failure warning device of coal mine air quantity sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202926392U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103362554A (en) * | 2013-07-24 | 2013-10-23 | 襄垣县树元电器有限公司 | Working state detection and alarm device for mine air-supply system |
| CN107989643A (en) * | 2017-12-13 | 2018-05-04 | 大同煤矿集团有限责任公司 | Wind tunnel sensor |
| CN110286208A (en) * | 2019-07-01 | 2019-09-27 | 贵州大学 | One kind being used for the tendentious detection device of spontaneous combustion of coal seam |
-
2012
- 2012-10-18 CN CN 201220534070 patent/CN202926392U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103362554A (en) * | 2013-07-24 | 2013-10-23 | 襄垣县树元电器有限公司 | Working state detection and alarm device for mine air-supply system |
| CN103362554B (en) * | 2013-07-24 | 2015-06-10 | 襄垣县树元电器有限公司 | Working state detection and alarm device for mine air-supply system |
| CN107989643A (en) * | 2017-12-13 | 2018-05-04 | 大同煤矿集团有限责任公司 | Wind tunnel sensor |
| CN110286208A (en) * | 2019-07-01 | 2019-09-27 | 贵州大学 | One kind being used for the tendentious detection device of spontaneous combustion of coal seam |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130508 Termination date: 20131018 |