CN2191257Y

CN2191257Y - Electromic permutation lock

Info

Publication number: CN2191257Y
Application number: CN 93243673
Authority: CN
Inventors: 李永元; 刘振生
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-11-05
Filing date: 1993-11-05
Publication date: 1995-03-08
Anticipated expiration: 2003-11-05

Abstract

The utility model relates to an electronic cipher lock used for safe doors, safety doors, house doors, etc. The electronic cipher lock comprises an electronic control circuit and a mechanical actuating mechanism. The control circuit is composed of the main circuit of an integrated circuit IC 1, the door opening control circuit of an IC 2, the sense and acoustic-optic alarm circuit of an IC 3, and a power supply circuit. The electronic cipher lock has the advantages of large cipher capacity, low price, complete function, easy use and high safety and reliability, and meanwhile, has the functions of preventing pry, preventing knock, preventing move, preventing error-cipher acoustic-optic alarm, etc.

Description

Electromic permutation lock

The utility model relates to a kind of safety door latch, especially a kind of safe door that is suitable for, the electronic password lock that safety door, house door etc. is located to use.

In the prior art, electronic password lock needs development rapidly along with many-sided.Yet some computer lock function improves and costs an arm and a leg, though some numerical control lock is multiple functional, but input is very few, can hold the password combination deficiency; Some makes electronic password lock with counter/decoder IC, though cheaply be decrypted or the like easily.So existing coded lock can not adapt to society and people's lives needs, and its application is restricted.

The purpose of this utility model is intended to propose the extensive CMOS security code of a kind of use special circuit.Be equipped with peripheral and the time-delay control circuit that opens the door, and have and prevent the electronic password lock taking off sled, knock, move sensing and error code sound and light of alarm, satisfying needs of society to overcome the deficiencies in the prior art part.

The purpose of this utility model is to realize like this.

Electronic password lock comprises electronic control circuit and mechanical actuating mechanism, and it is characterised in that control circuit by IC 1 SH901 main circuit, and with IC2 555 control circuit that opens the door, IC3LH9561 sensing and sound light alarming circuit and power circuit are formed; Wherein, IC1SH901 main circuit P17 enabling nulse output is connected to the IC2 555 control circuit P2 that opens the door through switching tube BG1 and triggers output; IC1SH901 main circuit P15 warning pulse output end is connected to the IC3LH9561 power positive end through switching tube BG2; The DW power supply magnetic padlock DCS of power circuit and the compound level of reporting to the police, the IC4 output is for IC1, IC2, IC3 etc.Its mechanical actuating mechanism be the contact of the end of electromagnet DCS armature have one with its servo-actuated, and the lock of installing with jointed shaft.

Below in conjunction with embodiment and accompanying drawing, the utility model is described in detail.

Fig. 1 electronic password lock schematic diagram;

Fig. 2 electronic password lock circuit theory diagrams.

The main circuit of electronic password lock control circuit connects positive source on the P9 of IC1SH901, connect power cathode on the P3, connects on the P4 and restores capacitor C 2; Between D18 and the P1, be connected to oscillating element R1 and C1 between P1 and the P3; Keyboard is connected to P5 to P8 and P10, P11 and zero level end; Between P8 and the P12 and be connected with one or more groups sensitive switch SS, microswitch HgS; Be connected to storage switch MS between P13 and the negative pole; Be connected to buzzer between P14 and the positive pole.

The control circuit that opens the door of electronic password lock control circuit, it is the true output of P17 that the P2 of time delayer circuit IC2 555 is connected to main circuit IC1SH901 by diode BG1, wherein the base stage of BG1 meets the P17 of SH901, emitter stage meets 555 P2, between the P7 that links to each other and P6 and negative pole, be connected to capacitor C 3 as timing element, and be connected to resistance R 6 between the positive pole; 555 P3 succeeds electrical equipment J1, and the contact J1-1 of J1 connects electromagnet DCS.In addition, diode D4 and D5 are the coil protect diode, and capacitor C 6 is a relay contact arc extinguishing electric capacity.

In the sensing and sound light alarming circuit of electronic password lock control circuit, the input of IC 3LH9561 is connected to the P15 of main circuit IC1SH901 through diode BG2; The negative pole of photosensitive tube PD is connected to the BG2 base stage, and the positive pole of PD connects negative pole; Between BG3 emitter resistance R11 and negative pole, also be connected to warning LED 1.The resistance R 7 that is connected between BG2 base stage and positive source through adjusting, can change the light sensation sensitivity.

The power circuit of electronic password lock control circuit, being used for civil power 220VAC transformation is 9V, through rectifier bridge OL rectification, after voltage-stabiliser tube DW and 4 7806 voltage stabilizings of three-terminal voltage-stabilizing IC circuit, provides 9VDC and 6VDC operating voltage respectively.During power failure, battery E inserts automatically, guarantees operate as normal.Capacitor C 5, C7 and C8 are filter capacitor.Diode D6 and D7 are that diode is irritated in counnter attack.Luminous tube LED2 and LED3 are respectively power supply indicator and enabling signal lamp.

The bottom of the electromagnet DCS armature of electronic password lock mechanical actuating mechanism be pressed in lock pin 1 above, in the outer end of lock pin one side, a bearing spring 2 is housed, be used for when electromagnetic actuation, lock pin being held up.

The photosensitive tube PD of electronic password lock, concealed installation are not shone by light in the gap of keyboard 3 inside.It is very little that sensitive switch SS is installed on electromagnet armature frame 4 places itself and armature clearance, meets picking lock and get final product triggering and conducting.Mercury contact switch HgS is installed on the corner on safety cabinet inner bag or cabinet door internal layer upper strata.

Electronic password lock can be self-editing according to user's needs, storage and Change Password, and password figure can be appointed between the 1-12 position and got.During storage, connect storage switch MS, behind the key entry coding,,, promptly finish storage or memory successively again with the MS reposition by store instruction key " M ".Access to your password when opening the door, behind the key entry proper password, connect the instruction key that opens the door " K ", then IC1P17 exports the negative pulse of opening the door and adds to the BG1 base stage, makes its conducting, and trigger delayer IC2, makes it enter temporarily steady state; Simultaneously, IC2P3 exports high level, the relay adhesive, and electromagnet armature lifts, at this moment, and rotational lock core or handle, door can be opened.Digital and former when depositing password not match when keying in, after preceding twice buzzer BD echo, be right after and send one very brief " ticking " sound, with the announcement of warning; Error code for the third time, IC1P14 be output pulse string to buzzer, 60 seconds warning negative pulse of P15 output pulse width adds to the BG2 base stage, make its conducting, thereby IC3 obtains power supply, begins to send the siren signal, amplify through BG4 and BG5, give the alarm synchronously inside and outside making at once, red light is in an emergency with bright.When taking off sled, if the keyboard lid is opened, the photoelectric tube PD that volt is put is subjected to light, and the backward resistance bust is setovered and conducting the base stage of transistor BG2, and it is reported to the police at once.When attempting to force open the door, knock or move, then fine motion sensing SS or inclination sensing HgS are inspired, and detect P15 and the P15 alert signal of also delivering newspaper synchronously through IC1.For the elimination of alarm, only need to key in proper password and get final product.

In addition, when key feeding cipher opened the door, IC1P16 output state control level with control motor forward or reverse, through transmission mechanism, realized opening the door automatically or closing the door.

The utility model circuit is simple, and components and parts are few, thereby cost is low, and it has up to 10 simultaneously ²The password capacity, and have and anti-take off sled, knock, move functions such as sensing and error code sound and light alarm, applicable to the occasions such as chain control of various safe doors, safety door, the peaceful door of house door and window.Through suitably adjusting also applicable to automobile etc.

Claims

1, a kind of electronic password lock comprises electronic control circuit and mechanical actuating mechanism, and it is characterised in that control circuit by IC 1SH901 main circuit, and with the IC2555 control circuit that opens the door, IC3LH9561 sensing and sound light alarming circuit and power circuit are formed; Wherein, IC1SH901 main circuit P17 enabling nulse output is connected to the IC2555 control circuit P2 that opens the door through switching tube BG1 and triggers output; IC1SH901 main circuit P15 warning pulse output end is connected to the IC3LH9561 power positive end through switching tube BG2; The DW power supply magnetic padlock DCS of power circuit and the compound level of reporting to the police, the IC4 output is for IC1, IC2, IC3; Its mechanical actuating mechanism be the contact of the end of electromagnet DCS armature have one with its servo-actuated, and the lock of installing with jointed shaft.

2, according to the described coded lock of claim 1, it is characterized in that the main circuit of control circuit connects positive source on the P9 of IC1SH901, connect power cathode on the P3, connect on the P4 and restore capacitor C 2; Between D18 and the P1, be connected to oscillating element R1 and C1 between P1 and the P3; Keyboard is connected to P5 to P8 and P10, P11 and zero level end; Between P8 and the P12 and be connected with one or more groups sensitive switch SS, microswitch HgS; Be connected to storage switch MS between P13 and the negative pole; Be connected to buzzer between P14 and the positive pole.

3, according to the described coded lock of claim 1, the control circuit that opens the door that it is characterized in that control circuit, it is the P17 output that the P2 of time delayer circuit IC2 555 is connected to main circuit IC1SH901 by diode BG1, wherein the base stage of BG1 meets the P17 of SH901, emitter stage meets 555 P2, between the P7 that links to each other and P6 and negative pole, be connected to capacitor C 3 as timing element, and be connected to resistance R 6 between the positive pole; 555 P3 succeeds electrical equipment J1, and the contact J1-1 of J1 connects electromagnet DCS.

4,, it is characterized in that in sensing and the sound light alarming circuit that the input of IC3LH9561 is connected to the P15 of main circuit IC1SH901 through diode BG2 according to the described coded lock of claim 1; The negative pole of photosensitive tube PD is connected to the BG2 base stage, and the positive pole of PD connects negative pole; Between BG3 emitter resistance R11 and negative pole, also be connected to warning LED 1.

5, according to the described coded lock of claim 1, the bottom of electromagnet DCS armature that it is characterized in that its executing agency of mechanism be pressed in lock pin above, one side is equipped with a bearing spring in the outer end of lock pin.

6,, it is characterized in that the gap of photosensitive tube PD concealed installation in keyboard according to claim 1 or 4 described coded locks.

7,, it is characterized in that sensitive switch SS is installed on the DCS armature bracket according to claim 1 or 2 described coded locks.

8, according to claim 1 or 2 described coded locks, it is characterized in that mercury contact switch HgS, it is installed on the upper corner place of safety cabinet inner bag or cabinet door internal layer.