CN204331946U - A kind of gate inhibition breaks monitoring alarm - Google Patents
A kind of gate inhibition breaks monitoring alarm Download PDFInfo
- Publication number
- CN204331946U CN204331946U CN201420748578.0U CN201420748578U CN204331946U CN 204331946 U CN204331946 U CN 204331946U CN 201420748578 U CN201420748578 U CN 201420748578U CN 204331946 U CN204331946 U CN 204331946U
- Authority
- CN
- China
- Prior art keywords
- resistance
- open circuit
- relay
- gate inhibition
- triode
- 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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- Emergency Alarm Devices (AREA)
Abstract
The utility model discloses a kind of gate inhibition to break monitoring alarm, comprise open circuit inductor, the first resistance to the 4th resistance, direct supply, triode, relay and loudspeaker.Gate inhibition's cable is installed on by enabling place of inhibit gate, if gate inhibition's cable disconnects, the break-make test side, two loops of open circuit inductor is equivalent to open circuit, the output terminal output low level of open circuit inductor, triode ON, relay adhesive, the contact switch of relay closes, connect the direct supply of alarm circuit, so sound the alarm.Compared with prior art, the utility model has the advantage that circuit structure is simple, with low cost, employing electronic component is few, and warning effect especially of the present utility model is good, has the value promoted the use of, and ordinary consumer can both bear.
Description
Technical field
The utility model relates to a kind of gate inhibition's watch-dog, particularly relates to a kind of gate inhibition and to break monitoring alarm.
Background technology
The one of gate inhibition's Control Room anti-thefting facility, ideal effect is played in anti-theft security, and gate inhibition's watch-dog of the prior art is all advanced, its circuit structure is complicated, employing electronic component is many, cost is high, though good effect can be played, but be unfavorable for popularizing, general family can not bear.
Utility model content
The purpose of this utility model is just to provide to solve the problem a kind of gate inhibition to break monitoring alarm.
The utility model is achieved through the following technical solutions above-mentioned purpose:
The utility model comprises open circuit inductor, first resistance is to the 4th resistance, direct supply, triode, relay and loudspeaker, the positive pole of described direct supply is connected with the first end of described first resistance, second end of described first resistance is connected with the first end of the first end of described second resistance and the contact switch of described relay respectively, second end of described second resistance is connected with the power positive end of described open circuit inductor and the emitter of described triode respectively, the base stage of described triode is connected with the first end of described 3rd resistance and the first end of described 4th resistance respectively, second end of described 3rd resistance is connected with the output terminal of described open circuit inductor, second end of described 4th resistance respectively with the earth terminal of described open circuit inductor, the first end of described relay, the first end of described loudspeaker is connected with the negative pole of described direct supply, second end of described relay is connected with the collector of described triode, second end of described loudspeaker is connected with the second end of the contact switch of described relay, the two ends of gate inhibition's cable are connected with the break-make test side, two loops of described open circuit inductor respectively.
The beneficial effects of the utility model are:
The utility model is that a kind of gate inhibition breaks monitoring alarm, compared with prior art, the utility model has the advantage that circuit structure is simple, with low cost, employing electronic component is few, especially warning effect of the present utility model is good, there is the value promoted the use of, and ordinary consumer can both bear.
Accompanying drawing explanation
Fig. 1 is circuit structure schematic diagram of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
As shown in Figure 1: the utility model comprises open circuit inductor LSE, first resistance R1 is to the 4th resistance R4, direct supply V, triode VT, relay J and loudspeaker BY, the positive pole of direct supply V is connected with the first end of the first resistance R1, second end of the first resistance R1 is connected with the first end of the first end of the second resistance R2 and the contact switch J1 of relay respectively, second end of the second resistance R2 is connected with the power positive end of open circuit inductor LSE and the emitter of triode VT respectively, the base stage of triode VT is connected with the first end of the 3rd resistance R3 and the first end of the 4th resistance R4 respectively, second end of the 3rd resistance R3 is connected with the output terminal of open circuit inductor LSE, second end of the 4th resistance R4 respectively with the earth terminal of open circuit inductor LSE, the first end of relay J, the first end of loudspeaker BY is connected with the negative pole of direct supply V, second end of relay J is connected with the collector of triode VT, second end of loudspeaker BY is connected with second end of the contact switch J1 of relay, the two ends of gate inhibition's cable DL are connected with the break-make test side, two loops of open circuit inductor LSE respectively.
As shown in Figure 1: gate inhibition's cable DL is installed on by enabling place of inhibit gate, when gate inhibition's cable DL is intact, break-make test side, two loops series connection of open circuit inductor LSE, the output terminal of open circuit inductor LSE exports high level, triode VT ends, relay J is in release conditions, and loudspeaker BY does not work.If gate inhibition's cable DL disconnects, the break-make test side, two loops of open circuit inductor LSE is equivalent to open circuit, the output terminal output low level of open circuit inductor LSE, triode VT conducting, relay J adhesive, the contact switch J1 of relay closes, and has connected the direct supply V of alarm circuit, so sound the alarm.
Claims (1)
1. a gate inhibition breaks monitoring alarm, it is characterized in that: comprise open circuit inductor, first resistance is to the 4th resistance, direct supply, triode, relay and loudspeaker, the positive pole of described direct supply is connected with the first end of described first resistance, second end of described first resistance is connected with the first end of the first end of described second resistance and the contact switch of described relay respectively, second end of described second resistance is connected with the power positive end of described open circuit inductor and the emitter of described triode respectively, the base stage of described triode is connected with the first end of described 3rd resistance and the first end of described 4th resistance respectively, second end of described 3rd resistance is connected with the output terminal of described open circuit inductor, second end of described 4th resistance respectively with the earth terminal of described open circuit inductor, the first end of described relay, the first end of described loudspeaker is connected with the negative pole of described direct supply, second end of described relay is connected with the collector of described triode, second end of described loudspeaker is connected with the second end of the contact switch of described relay, the two ends of gate inhibition's cable are connected with the break-make test side, two loops of described open circuit inductor respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420748578.0U CN204331946U (en) | 2014-12-03 | 2014-12-03 | A kind of gate inhibition breaks monitoring alarm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420748578.0U CN204331946U (en) | 2014-12-03 | 2014-12-03 | A kind of gate inhibition breaks monitoring alarm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204331946U true CN204331946U (en) | 2015-05-13 |
Family
ID=53168277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420748578.0U Expired - Fee Related CN204331946U (en) | 2014-12-03 | 2014-12-03 | A kind of gate inhibition breaks monitoring alarm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204331946U (en) |
-
2014
- 2014-12-03 CN CN201420748578.0U patent/CN204331946U/en not_active Expired - Fee Related
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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: 20150513 Termination date: 20191203 |