CN2062081U

CN2062081U - Domestic lock controlled alarm

Info

Publication number: CN2062081U
Application number: CN 90203414
Authority: CN
Inventors: 赵福民
Original assignee: Individual
Current assignee: Individual
Priority date: 1990-03-22
Filing date: 1990-03-22
Publication date: 1990-09-12

Abstract

The utility model discloses a domestic lock controlled alarm belonging to the alarming device. The domestic lock controlled alarm is composed of a power supply, a sensing head, a triggering control circuit, an alarming circuit push-button switch, a music doorbell sounding circuit, a delay clear circuit and a speaker. The domestic lock controlled alarm has functions of a burglar alarm and a music doorbell, and the domestic lock controlled alarm has a delay alarming function. The domestic lock controlled alarm has the advantages of high integration, small static power consumption, strong anti destructive performance and high cost performance.

Description

Domestic lock controlled alarm

The utility model relates to a kind of warning device that is used for household safe protection, the lock control household alarm that departments such as particularly a kind of suitable resident family, enterprises and institutions, accounting office, archive office, secret chamber use.

At present, various burglar alarms have been asked the city successively, and the ratio of performance to price of these alarms is all on the low side, are difficult to apply in vast common resident family.

The purpose of this utility model is will provide a kind of can have the higher lock control household alarm of warning delay function and its ratio of performance to price as music door-bell again as burglar alarm.

The purpose of this utility model is achieved in that the utility model comprises power supply (1), adds switch K by being installed in locking on the door lock ₂, magnetic switch K ₃And sensing head ((2), trigger control circuit (3), warning circuit (4), music doorbell circuit (5), the button switch K of magnet composition ₁(6), time-delay clear circuit (7) and loudspeaker (8), its special character is that described trigger circuit (3) comprise a JK flip-flop or d type flip flop, the JK end or the D termination noble potential of described JK flip-flop or d type flip flop, S holds ground connection, and the CP end passes through capacitor C ₁Link to each other resistance R with ground ₁And resistance R ₂After the series connection, a termination power positive pole, the CP end of described JK flip-flop of another termination or d type flip flop, diode D ₁Anode connect the Q end of JK flip-flop or d type flip flop, diode D ₁Negative electrode connects the CP end of JK flip-flop or d type flip flop, locks to add switch K ₂Contact and magnetic switch K ₃Be connected on resistance R after the contact parallel connection ₁And R ₂Tie point and ground between, the alerting signal of the Q of described JK flip-flop or d type flip flop end output is by resistance R in the warning circuit (4) ₄With triode BG ₁Base stage link to each other triode BG ₁Emitter connect positive source, collector divides two-way, one the tunnel in time-delay clear circuit (7) and trigger control circuit (3) R of JK flip-flop or d type flip flop hold and link to each other, pronunciation integrated package in another road circuit taking alarm (4), the signal of described pronunciation integrated package output is through triode BG ₃Amplify the back and drive loudspeaker Y _D(8) work.

When using the utility model, power turn-on switch at first under normal circumstances, locks and adds switch K ₂With magnetic switch K ₃A closure is always arranged, and JK flip-flop or d type flip flop CP end are electronegative potential, and trigger does not overturn, so the trigger output alarm signal is zero, thereby do not report to the police.When Subscriber Application Barring Lock go out outdoors or in lock a door have a rest after, lock and add switch K ₂Be in " disconnection " state, force open the door if the robber is not with key twistlock or pivot frame are entered the room then on the door or the magnetic switch K on the window ₃Also can disconnect immediately, at this moment, positive source is through resistance R ₁, R ₂Be connected to the CP end of JK flip-flop or d type flip flop, JK flip-flop or d type flip flop upset, the Q end of trigger is exported a high level immediately through diode D ₁CP end is embedded in carries out pulse blocking on the noble potential, after this switch door and window all can not make JK flip-flop or trigger reset again, and simultaneously, the Q of JK flip-flop or d type flip flop end is turned to electronegative potential by noble potential, so triode BG ₁Conducting provides a high level to the pronunciation integrated package, and alerting signal of pronunciation integrated package output is through triode BG ₃Amplify the back and promote loudspeaker Y _bSend loud chimes of doom, simultaneously, triode BG ₁Collector is to capacitor C ₃Provide a high level, through resistance R ₃To capacitor C ₂Charging is through (the warning delay time that this time behaviour worker sets) behind the certain hour, capacitor C ₂Be charged to noble potential, because the clear terminal R and the capacitor C of JK flip-flop or d type flip flop ₂Positive pole link to each other, so JK flip-flop or d type flip flop reset immediately, trigger Q end is reduced to electronegative potential, Q holds and is reduced to noble potential, triode BG ₁End, reporting to the police stops, and the utility model dropped into the state of alert again automatically through about two minutes, need not the people for resetting capacitor C ₂It is reliable in order to guarantee zero clearing to play the work of keeping a period of time high level, resistance R ₅Be capacitor C ₂And capacitor C ₃Provide discharge loop that alarm is restored as early as possible.But the utility model also double as music door-bell uses.

Advantage of the present utility model is: function is complete, have music door-bell concurrently, function such as antitheft, has warning delay function (delay time can according to the customer requirements adjustment), volume not only greatly but also kept with loudspeaker and make the warning sound source, and integrated degree height, quiescent dissipation is little, anti-destructive is strong, ratio of performance to price height.

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is the utility model circuit block diagram.

Fig. 3 is the utility model circuit theory diagrams.

Further describe the utility model below in conjunction with accompanying drawing by embodiment.

Embodiment:

The utility model is by alarm (9), power switch K ₄(10), doorbell switch K ₁(6), door is gone up magnet (13) along last magnetic switch 12 and door, and magnet (15) on magnetic switch on the windowsill (14) and the window is installed in locking on two flapper locks (16) and adds switch K ₂(17), doorbell plug (18) is with alarm plug (19) and be connected cable in plastics (11), (20), (21), as shown in Figure 1; Described alarm comprises power supply (1), sensing head (2), trigger control circuit (3), warning circuit (4), music doorbell circuit (5), doorbell switch K ₁(6), time-delay clear circuit (7) and loudspeaker (8), described sensing head (2) by door along last magnetic switch K ₅(12) and door go up magnet (13), magnetic switch K on the windowsill ₃(14) magnet (15) and lock and add switch K and on the window ₂(17) form, as shown in Figure 2; Described trigger control circuit (3) comprises a two JK flip-flop KD27, the JK termination noble potential of described pair of first JK flip-flop of JK flip-flop KD27, and S holds ground connection, and the CP end passes through capacitor C ₁Link to each other resistance R with ground ₁And resistance R ₂After the series connection, a termination power positive pole, the CP end of first JK flip-flop of described couple of JK flip-flop KD27 of another termination, diode D ₁Anode connect the Q end of two first JK flip-flop of JK flip-flop KD27, diode D ₁Negative electrode connect the CP end of two first JK flip-flop of JK flip-flop KD27, lock and add switch K ₂(17) contact and magnetic switch K ₃(12), be connected on resistance R after (14) contact parallel connection ₁And R ₂Tie point and ground between, the alerting signal of the Q of described pair of first JK flip-flop of JK flip-flop KD27 end output is by resistance R in the warning circuit (4) ₄To triode BG ₁Base stage, triode BG ₁Emitter connect positive source, collector divides two-way, the one tunnel via resistance R ₃, R ₅And capacitor C ₂, C ₃The time-delay clear circuit of forming (7) links to each other with the R end of two first JK flip-flop of JK flip-flop in the trigger control circuit (3), four tones of standard Chinese pronunciation pronunciation integrated package KD9561 in another road circuit taking alarm (4), the signal of four tones of standard Chinese pronunciation pronunciation integrated package KD9561 output is through triode BG ₃Amplify the back and drive loudspeaker Y _D(8) work, as shown in Figure 3.

Claims

1, a kind of lock control household alarm comprises power supply (1), adds switch K by being installed in locking on the door lock ₂, magnetic switch K ₃And the sensing head (2) of magnet composition, trigger control circuit (3), warning circuit (4), music doorbell circuit (5), button switch K ₁(6), time-delay clear circuit (7) and loudspeaker (8) is characterized in that described trigger circuit (3) comprise a JK flip-flop or d type flip flop, the JK end or the D termination noble potential of described JK flip-flop or d type flip flop, and S holds ground connection, and the CP end passes through capacitor C ₁Link to each other resistance R with ground ₁And resistance R ₂After the series connection, a termination power positive pole, the CP end of described JK flip-flop of another termination or d type flip flop, diode D ₁Anode connect the Q end of JK flip-flop or d type flip flop, diode D ₁Negative electrode connect the CP end of JK flip-flop or d type flip flop, lock and add switch K ₂Contact and magnetic switch K ₃Be connected on resistance R after the contact parallel connection ₁And R ₂And between tie point and the ground, the alerting signal of the Q of described JK flip-flop or d type flip flop end output is by resistance R in the warning circuit (4) ₄To triode BG ₁Base stage, triode BG ₁Emitter connect positive source, collector divides two-way, one the tunnel in time-delay clear circuit (7) and trigger control circuit (3) R of JK flip-flop or d type flip flop hold and link to each other, the pronunciation integrated package in another road circuit taking alarm (4), the signal that described pronunciation integrated package is exported is through triode BG ₃Amplify the back and drive loudspeaker Y _D(8) work.

2, lock control household alarm as claimed in claim 1 is characterized in that described time-delay clear circuit (7) comprises resistance R ₃, R ₅, capacitor C ₂And C

, described resistance R ₃, capacitor C ₂And C ₃Constitute π shape delay circuit, resistance R ₅Be attempted by capacitor C ₃On.