CN2278048Y

CN2278048Y - Multi-protection door lock with alarm

Info

Publication number: CN2278048Y
Application number: CN 96236931
Authority: CN
Inventors: 肖承仑
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-05-14
Filing date: 1996-05-14
Publication date: 1998-04-08
Anticipated expiration: 2006-05-14

Abstract

The utility model relates to a lock. The utility model is characterized in that an electronic sounding alarm system is arranged in a lock body of an ordinary double-safety door lock; a time limitation circuit which is used for preventing a false key is used is composed of a contact point device SK which is arranged on a lock core ball hole, a controlled silicon which is connected in series with the contact point device SK, etc.; a vibration contact point device ZK is connected with a signal circuit which is used for preventing digging holes on the door and arranged between the back part of a switch K [0] and the anode of a C [2]; a thermal sensing element is connected with a high temperature cutting resistance signal circuit arranged between the back part of the switch K [0] and the anode of the C [2]; an anti-violence door breaking signal circuit is arranged between back part of the switch K [0] and the anode of the C [2]; the four signal circuits are connected with a sounding alarm circuit composed of an electronic switch, an IC amplifier, a trumpet, etc. The utility model has the advantages of wide protecting range, stable operation and low production cost.

Description

The alarm door locks of taking precautions against more

A kind of antitheft many strick precautions alarm door lock, genus lock technology field of being used for.

Many alarm door locks are arranged in the market, have certain effect to improving home safety, but also exist the few shortcoming of preventing function as: with false pseudo-key unlocking, dig a hole to stretch out one's hand from door and unblank to unload lock from indoor, with light-duty high temperature instrument cutting safe-guard door lock, push alarm switch after violence is forced open the door rapidly and end situations such as warning, fail well to take precautions against to report to the police, the robber might be committed a crime succeed.

The purpose of this utility model provides a kind of alarm door lock of taking precautions against more, makes it to above-mentioned multiple situation robber's crime good strick precaution warning effect be arranged all.

The technical solution of the utility model is, it comprises dead bolt, lock core, lock body and be loaded on its interior electronic audio warning system, it is characterized in that the electronic audio warning system has: (1) is located at contact arrangement SK in the lock core marble hole and the controllable silicon CT that connects with this contact, is connected to the capacitor C of the CT control utmost point in lock body ₁, CT is anodal and the potentiometer W of control interpolar ₁The time limited signal circuit of the pseudo-key unlocking of forming of anti-vacation; (2) be located at the interior vibrating contact device ZK of lock body, an end is through potentiometer W ₂With capacitor C ₂Anodal continuous, the other end and power switch K ₀Link to each other, form the vibration delayed alarm signal circuit of digging a hole on the anti-door; (3) be located at the interior temperature-sensing element WK of lock body ₁One end and K ₀Link to each other the other end and C ₂The anti-high-temperature machining circuit that positive pole is connected to form: (4) are by being located at slide bar and Square lock bolt in the lock body, tiltedly locking the sliding button switch MK contact MK that flat raft is settled ₁, MK ₂Be connected on BG respectively ₂Between emitter stage and the colelctor electrode, K ₀Back and C ₂Positive interpolar, the anti-violence of the composition instant delayed alarm signal circuit of forcing open the door.(5) above 4 kinds of signal circuits are all through R ₃Be connected to BG ₁, BG ₂The compound transistor electronic switch of forming; BG ₁, BG ₂Colelctor electrode links to each other with IC simulated sound integrated package 1 pin, and the IC3 pin passes through K ₀Link to each other with positive source, the IC output is through BG ₃Amplifier links to each other with loudspeaker Y, forms audible alarm circuit.

The electronic audio warning system has the power state detection device.It is by voltage-stabiliser tube DW and LED ₁Be one the tunnel and LED ₂, resistance R ₁After another road parallel connection, connect with test button switch AN again, be connected on both ends of power.

Defeated socket CZ outside the lock housing edge is equipped with an alert tone signal.

Fig. 1 is the utility model electronic audio warning system electrical schematic diagram.

Fig. 2 is the utility model master lock body internal works structural representation.

Fig. 3 has the lock core marble hole sectional drawing of contact arrangement SK.

Fig. 4 key turnover locked groove, SK contact situation of change schematic diagram in the pellet shot from a slingshot hole.

Fig. 5 vibrating contact device ZK structural representation.

Fig. 6 temperature control heat sensor WK structural representation.

Fig. 7 sliding button switch MK structural representation.

Sequence number 2-1 power switch compressing bar among the figure is attached on the Square lock bolt and its interlock, 2-2 Square lock bolt, the oblique dead bolt of 2-3,2-4 lock core, 2-5 battery case and wiring board.The 3-1 connecting thread, 3-2 spring, 3-3 spring, 3-4 sheet metal, 3-5 bakelite, 3-6 metal corpusculum, 3-7 turn groove, 3-8 lead.4-1 is the SK contact closure condition, and 4-2 is a SK contact separation state.The 5-1 insulating base, the lead that 5-2 links to each other with spring, 5-3 plastics tubule, 5-4 elasticity hand hammer, 5-5 metal garden ring, the lead that 5-6 links to each other with metal garden ring.The 6-1 bimetal leaf, 6-2 metal corpusculum.

Below in conjunction with accompanying drawing, the utility model structure and operating principle are described further.

Referring to Fig. 1～7, go out in the time of need setting up defences when leaving home, pick-proof door switch MK shuts the door ₁, MK ₂Disconnect, key inserts locked groove reverse three circles and lock is locked power switch K ₀Closure is taken out key, and alarming lock enters stand-by state.Attempt to unblank when the robber uses vacation, pseudo-key, then contact arrangement SK connects power supply.Electric current is through W ₁Give C ₁Charging, approximately through about 10 seconds, miniature controllable silicon CT triggering and conducting, electric current is given capacitor C through SK, CT ₂Charging reaches when a certain amount of electronic switch BG ₁, BG ₂Conducting simulates acoustics circuit IC, BG ₃Work, send warning.If the one of own side opens the door with true key, the time is of short duration, and the several seconds finishes, and lock is opened, and power supply disconnects so can not send alarm signal.Have only when using pseudo-key unlocking, may not necessarily finish smoothly tens of seconds, so foregoing circuit work can be sent warning.Be the loose contact of avoiding single contact to occur, be provided with many in the desirable a plurality of pellets shot from a slingshot of lock core hole the use in parallel of SK contact.Potentiometer W ₁Can regulate C ₁The charging CT working time.C ₃Work to improve the electronic switch operating efficiency.

When robber system is taken at the crime method of digging a hole on the door, door leaf can vibrate, the interrupted break-make of vibrating contact device ZK, and electric current is through W ₂Give C ₂Charging repeatedly, sustained vibration is about one minute, C ₂Reach capacity and make electronic switch BG ₁, BG ₂Conducting, warning circuit work.Visiting the knocking at the door of kith and kin waited door leaf vibration common in the daily life at ordinary times, generally do not have continuous one a minute action, unlikelyly causes wrong report.And time-delay length also can be passed through W ₂Adjusting change.

When the robber commits a crime with the high-temperature machining door lock, about 60 ℃ of lock body Nei Wenduda, heat sensor WK contact is connected, C ₂The instantaneous charging that reaches capacity, simulates audible alarm circuit work at electronic switching circuit, gives the alarm immediately, and after stopping to heat, alert sound still continues more than several minutes.

Force open the door when crime when the robber takes violence, main lock body separates with auxiliary lock body and reaches more than the 5mm or door is rushed open then sliding button switch contact MK ₁, MK ₂Close MK simultaneously ₁It is constant directly to connect the alert at once sound your writing of warning circuit.MK ₂Then connect electronic switching circuit, give delay capacitor C ₂Instantaneous charging is saturated, BG ₁, BG ₂Conducting forms MK ₁, MK ₂The warning circuit of connecting in parallel.This moment, attempt was ended to report to the police, then because of C if push slip button switch MK ₂Being filled with saturated charge still can delayed alarm work about 2 minutes, treats C ₂Electric charge is through resistance R ₂Releasing finishes, and warning stops; This moment, sound is rapid to be risen if release button then can be warned again, must lock be opened power switch K with true key ₀Disconnect and to remove warning.

When pressing the button switch AN, if power supply (battery) voltage is at normal range (NR) (5～6V) LED then ₁Green light is bright, LED ₂Amber light is bright.Then voltage-stabiliser tube DW blocking-up is obstructed if be lower than 5V, the green light only LED that do not work ₂Amber light is bright, and the prompting battery should be changed, the then battery failure if two lamps all do not work.

The CZ jack is that three-way dual-purpose socket, lock are interior, the outer loudspeaker of lock is shared.When the networking of needs and warning net maybe will be warned sound when transmitting at a distance, just can as long as terminal pin plugged.

Outstanding advantage of the present utility model is the unique texture that has adopted electromechanical integration, circuit design is simply effective, to robber's burglary the various common means of committing a crime on the door as: open the door with false pseudo-key, dig a hole on the door, high temperature burns cutting, violence collision is forced open the door etc., all taked multiple warning measure, stable performance reliable operation to prevent that scope is wide targetedly, cost of production low production market prospects are good.Sample gives the phase effect through on probation reaching.Important technological parameters is:

1, static state is waited for below the electric current 3uA.

2, about maximum operating currenbt 300mA.

3, locate for positive about 1 meter apart from loudspeaker, sound equipment can reach 85 decibels.

Claims

1, a kind of alarm door lock of taking precautions against comprises dead bolt, lock core, lock body and is loaded on its interior electronic audio warning system more, it is characterized in that the electronic audio warning system has:

(1) the contact arrangement SK that is located in the lock core marble hole reaches the controllable silicon CT that connects with this contact, the capacitor C that is connected to the CT control utmost point in lock body ₁, CT is anodal and the potentiometer W of control interpolar ₁The time limited signal circuit of the anti-false key unlocking of forming;

(2) be located at the interior vibrating contact device ZK of lock body, an end is through potentiometer W ₂With capacitor C ₂Anodal continuous, the other end and power switch K ₀Link to each other, form the vibration delayed alarm signal circuit of digging a hole on the anti-door;

(3) be located at the interior temperature-sensing element WK of lock body ₁One end and K ₀Link to each other the other end and C ₂The anodal anti-high-temperature machining circuit that links to each other;

(4) by being located at slide bar and Square lock bolt in the lock body, the oblique contact MK of the sliding button switch MK that settles of dead bolt flat raft ₁, MK ₂Be connected on BG respectively ₂Between emitter stage and the colelctor electrode, K ₀Back and C ₂Positive interpolar, the anti-violence of the composition instant delayed alarm signal circuit of forcing open the door;

(5) above 4 kinds of signal circuits are all through R ₃Be connected to BG ₁, BG ₂The compound transistor electronic switch of forming; BG ₁, BG ₂Colelctor electrode links to each other with IC simulated sound integrated package 1 pin, and the IC3 pin passes through K ₀Link to each other with positive source, the IC output is through BG ₃Amplifier links to each other with loudspeaker Y, forms audible alarm circuit.

2, alarm door lock according to claim 1 is characterized in that, the electronic audio warning system has the power state detection device, and it is by voltage-stabiliser tube DW LED ₁Be one the tunnel and LED ₂, resistance R ₁After another road parallel connection, connect with test button switch AN again, be connected on both ends of power.