CN202788907U - Magnetic-induction air duct sensor - Google Patents
Magnetic-induction air duct sensor Download PDFInfo
- Publication number
- CN202788907U CN202788907U CN201220444944.4U CN201220444944U CN202788907U CN 202788907 U CN202788907 U CN 202788907U CN 201220444944 U CN201220444944 U CN 201220444944U CN 202788907 U CN202788907 U CN 202788907U
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- verge board
- wind tunnel
- contiguous block
- magnetic induction
- tongue tube
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- Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
Abstract
The utility model provides a magnetic-induction air duct sensor which comprises a connecting block, a first wind shield and a second wind shield, wherein the first wind shield and the second wind shield are pivoted on the connecting block; a tongue tube is connected between the connecting block and the first wind shield; a permanent magnet is connected between the connecting block and the second wind shield; and one end of the tongue tube is propped against one end of the permanent magnet and is electrically connected with the other end the tongue tube through a prewarning device. According to the magnetic-induction air duct sensor, a circuit is closed through the tongue tube and the permanent magnet to realize monitoring of the wind volume of an air duct; and the problem that the prewarning device of a traditional air duct sensor fails due to loose contact caused by contact oxidation is solved.
Description
Technical field
The utility model relates to a kind of Wind tunnel sensor, relates in particular to a kind of magnetic induction Wind tunnel sensor.
Background technology
Local ventilation flexible material air duct end is equipped with the Wind tunnel sensor of Real-Time Monitoring local ventilation state usually under the coal mine, as shown in Figure 1, but described Wind tunnel sensor by changeover switch and two each other the cramp frame of opening and closing form, during use, described Wind tunnel sensor is suspended on the suspension ring of air duct top, makes cramp frame top clamp air duct.When air quantity in the air duct was sufficient, the blast in the air duct was so that cramp frame keeps open configuration, and the control bolt on the cramp frame is depressed the button of changeover switch, so that the constant close contact of changeover switch disconnects; When the blast in the air duct descends, two cramp frames can close up because of the weight of self, control the button that bolt just unclamps changeover switch this moment, its constant close contact is closed, this constant close contact signal lead of changeover switch is connected with monitor system substation and similar watch-dog, signal is sent in the monitoring system, realizes the monitoring of air duct duty.But, this contact Wind tunnel sensor in use owing to affected by the down-hole wet environment, the problem of contact oxidation, loose contact often can appear in Wind tunnel sensor, has seriously affected the reliability of Wind tunnel sensor.
The utility model content
For the problem that prior art exists, the purpose of this utility model provides a kind of magnetic induction Wind tunnel sensor, and it can improve the problem of traditional Wind tunnel sensor contact oxidation, loose contact.
Above-mentioned purpose of the present utility model is achieved through the following technical solutions:
A kind of magnetic induction Wind tunnel sensor comprises contiguous block and is articulated in the first verge board and the second verge board on the described contiguous block, wherein,
Be connected with tongue tube between described contiguous block and described the first verge board, be connected with permanent magnet between described contiguous block and described the second verge board, described tongue tube and described permanent magnet butt;
The two ends of described tongue tube arrange respectively pin, and an end pin of described tongue tube is electrically connected with the other end pin of described tongue tube by prior-warning device.
Further, be provided with symmetrically two rotating shafts on the described contiguous block, described the first verge board and described the second verge board articulate by two rotating shafts and described contiguous block respectively.
Further, described the first verge board can swing on the plane at contiguous block place in opposite directions or mutually privately with described the second verge board.
Further, described the first verge board and the second verge board are the arc wind board that nock is oppositely arranged.
Further, be provided with on the described contiguous block for the fixed part of fixing described magnetic induction Wind tunnel sensor.
Further, described fixed part is suspension ring.
Further, described prior-warning device is light emitting diode.
The magnetic induction Wind tunnel sensor that the utility model provides utilizes tongue tube and permanent magnet to come connection circuit, realizes the monitoring to the wind tube wind quantity size, has avoided traditional Wind tunnel sensor because contact oxidation, loose contact and problem that the prior-warning device that causes lost efficacy.
Description of drawings
Fig. 1 is the schematic diagram of Wind tunnel sensor in the prior art;
Fig. 2 is the schematic diagram of a kind of preferred magnetic induction Wind tunnel sensor of the utility model;
Fig. 3 is the first verge board and the schematic diagram of the second verge board under open configuration of magnetic induction Wind tunnel sensor shown in Figure 2.
The specific embodiment
Below in conjunction with accompanying drawing, a preferred embodiment of the present utility model is described in detail.
As shown in Figures 2 and 3, the magnetic induction Wind tunnel sensor that the utility model provides comprises contiguous block 5 and is articulated in the first verge board 11 and the second verge board 12 on the described contiguous block 5, as a kind of preferred version of the present utility model, be provided with symmetrically two rotating shafts 51 and 52 on the contiguous block 5 of present embodiment, described the first verge board 11 and described the second verge board 12 articulate with described contiguous block 5 by described rotating shaft 51 and rotating shaft 52 respectively, described the first verge board 11 can swing on the plane at contiguous block 5 places opposite to each other or mutually privately with described the second verge board 12, adopting rotating shaft to articulate only is a kind of preferred version of the present utility model, other pivot joint mode that the utility model can adopt those skilled in the art to be familiar with for example adopts bearing pin to articulate.
The first verge board 11 and second verge board 12 of present embodiment are preferably the arc wind board that nock is oppositely arranged, present embodiment is oppositely arranged the nock of arc wind board, the active force that the first verge board 11 and the second verge board 12 wind-engagings make progress is easier to swing open, has greatly improved the sensitivity of equipment.Also preferably be provided with the fixed part 4 for fixing described magnetic induction Wind tunnel sensor on the contiguous block 5 of present embodiment, because suspension ring are simple in structure, wide adaptability, it can be applicable to all kinds of roadway support forms such as metallic support, shotcrete, block arch in the down-hole, therefore the fixed part 4 of present embodiment is preferably suspension ring, certainly, suspension ring are a kind of preferred version of the present utility model, other structure with fixed installation effect that the utility model can also adopt those skilled in the art to be familiar with repeats no more herein.
Be connected with tongue tube 2 between the contiguous block 5 of present embodiment and described the first verge board 11, be connected with permanent magnet 3 between described contiguous block 5 and described the second verge board 12; Described tongue tube 2 and described permanent magnet 3 butts, the two ends of described tongue tube 2 are respectively arranged with pin, one end pin of described tongue tube 2 is electrically connected with the other end pin of described tongue tube 2 by prior-warning device, described prior-warning device is preferably light emitting diode, prior-warning device of the present utility model can adopt any device with warning function known in those skilled in the art, for example luminous or sounding class prior-warning device.
During use, described magnetic induction Wind tunnel sensor is suspended on the air duct top by suspension ring, the first verge board and the second verge board are clamped air duct.During the outside air draft of air duct, magnetic induction Wind tunnel sensor the first verge board and the second verge board open, and as shown in Figure 3, at this moment, tongue tube separates with permanent magnet, and circuit also is disconnected, and prior-warning device is not worked, and air quantity is normal in the expression air duct.When calm in the air duct, the first verge board and second verge board of magnetic induction Wind tunnel sensor close up under Action of Gravity Field, as shown in Figure 2, at this moment, tongue tube and permanent magnet butt, the magnetic force of permanent magnet make two mutual adhesives of reed of tongue tube, and circuit is connected, signal is transferred to prior-warning device, in time sends warning signal.The utility model has substituted by touching travel switch by tongue tube and permanent magnet, has realized the monitoring to wind tube wind quantity, avoids producing the electric shock oxidation, the problems such as loose contact, and just can use without the external resistor circuit, wiring is simple, stable, failure rate is low, monitored data are true and reliable.
Above-described embodiment is only for illustration of the utility model; and be not to be to restriction of the present utility model; the those of ordinary skill in relevant technologies field; in the situation that does not break away from spirit and scope of the present utility model; can also make a variety of changes and modification; therefore all equivalent technical solutions also should belong to category of the present utility model, and scope of patent protection of the present utility model should be limited by each claim.
Claims (7)
1. a magnetic induction Wind tunnel sensor is characterized in that, comprise contiguous block and be articulated in the first verge board and the second verge board on the described contiguous block, wherein,
Be connected with tongue tube between described contiguous block and described the first verge board, be connected with permanent magnet between described contiguous block and described the second verge board, described tongue tube and described permanent magnet butt;
The two ends of described tongue tube arrange respectively pin, and an end pin of described tongue tube is electrically connected with the other end pin of described tongue tube by prior-warning device.
2. magnetic induction Wind tunnel sensor according to claim 1 is characterized in that, is provided with symmetrically two rotating shafts on the described contiguous block, and described the first verge board and described the second verge board articulate by two rotating shafts and described contiguous block respectively.
3. magnetic induction Wind tunnel sensor according to claim 2 is characterized in that, described the first verge board can swing on the plane at contiguous block place opposite to each other or mutually privately with described the second verge board.
4. magnetic induction Wind tunnel sensor according to claim 1 is characterized in that, described the first verge board and the second verge board are the arc wind board that nock is oppositely arranged.
5. magnetic induction Wind tunnel sensor according to claim 1 is characterized in that, is provided with the fixed part for fixing described magnetic induction Wind tunnel sensor on the described contiguous block.
6. magnetic induction Wind tunnel sensor according to claim 5 is characterized in that, described fixed part is suspension ring.
7. magnetic induction Wind tunnel sensor according to claim 1 is characterized in that, described prior-warning device is light emitting diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220444944.4U CN202788907U (en) | 2012-09-03 | 2012-09-03 | Magnetic-induction air duct sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220444944.4U CN202788907U (en) | 2012-09-03 | 2012-09-03 | Magnetic-induction air duct sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202788907U true CN202788907U (en) | 2013-03-13 |
Family
ID=47816182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220444944.4U Expired - Lifetime CN202788907U (en) | 2012-09-03 | 2012-09-03 | Magnetic-induction air duct sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202788907U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107060868A (en) * | 2017-06-19 | 2017-08-18 | 阜宁县鑫虎机械有限公司 | A kind of air duct for being easy to adjust blowing angle |
| CN107989643A (en) * | 2017-12-13 | 2018-05-04 | 大同煤矿集团有限责任公司 | Wind tunnel sensor |
| CN109340460A (en) * | 2018-11-06 | 2019-02-15 | 盐城市吉平人造革有限公司 | It is a kind of with the positive pressure ventilating duct for facilitating hanging function |
-
2012
- 2012-09-03 CN CN201220444944.4U patent/CN202788907U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107060868A (en) * | 2017-06-19 | 2017-08-18 | 阜宁县鑫虎机械有限公司 | A kind of air duct for being easy to adjust blowing angle |
| CN107989643A (en) * | 2017-12-13 | 2018-05-04 | 大同煤矿集团有限责任公司 | Wind tunnel sensor |
| CN109340460A (en) * | 2018-11-06 | 2019-02-15 | 盐城市吉平人造革有限公司 | It is a kind of with the positive pressure ventilating duct for facilitating hanging function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130313 |
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| CX01 | Expiry of patent term |