CN2366508Y

CN2366508Y - Passing through type radio theft-proof lock with alarming means

Info

Publication number: CN2366508Y
Application number: CN 99237242
Authority: CN
Inventors: 潘昌盛
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-02-26
Filing date: 1999-02-26
Publication date: 2000-03-01
Anticipated expiration: 2009-02-26

Abstract

The utility model relates to a penetration type wireless theft-proof alarm lock. A main lock head (1) is provided with one position sensitive switch S2. A branch lock head (2) is provided with one position sensitive switch S1. An emission circuit is composed of a trigger module MK, a code unit IC and a high-frequency emission circuit (3). The output end, which is the collector electrode of a triode N2, of a high-frequency modulation circuit is connected with a high-frequency emission circuit which is composed of capacitors C5, CW, an antenna (4) and an inductor L1. The utility model can identify normal door-switching actions or door-prizing actions. When a door is prized, the utility model emits alarm signals. A receiver receives alarm signals, and then, completes alarm programs. The utility model has the advantages of remote-alarm functions, large guard range and strong invisibility. The alarm signals can travel through a metal shield layer of a lock body. The utility model is suitable for house doors, car doors, file cabinets, safety cabinets, etc.

Description

Penetration wireless anti-theft alarming lock

The utility model relates to a kind of electronic safety lock, particularly a kind of penetration wireless anti-theft alarming lock.

Existing electronic lock is many works hard at aspects such as password setting or opening ways.Its type of alarm generally is an onsite alarming, or does not have warning function.The fence coverage of onsite alarming is very limited, and the thief that is stolen easily is vindictive damages and lost efficacy.

The purpose of this utility model provides and a kind ofly places in the lock body and can penetrate the lock body metallic shield and launch the wireless anti-theft alarming lock of alarm signal.

Described penetration wireless anti-theft alarming lock comprises the tapered end, dead bolt, the switch that are loaded on the lock body; Be loaded on the alarm signal emitter in the lock body and break away from, it is characterized in that: a position sensing switch S2 is housed on described alarming lock master tapered end (1), a position sensing switch S1 is housed on its minute tapered end (2) in the receiver each several part of this signal of lock body; The alarm signal radiating circuit is by trigger module MK, and coding unit IC and high-frequency emission road (3) are formed; The end of the input of trigger module MK and position sensing switch S1, S2 links, and the input of its output and coding unit IC links, and the output of IC unit links through the base stage of the input triode N2 of cloudy R5 of electricity and high frequency transmission circuit (3); Be connected to capacitor C3, C4 on the base stage of N2 simultaneously, resistance R 5, capacitor C 4, C3, triode N2 are formed the high frequency modulated circuit, and the output of this high frequency modulated circuit is to be connected to the high frequency transmission circuit of being made up of capacitor C 5, CW, antenna (4) and inductance L 1 on the colelctor electrode of triode N2.Capacitor C 5 in the described high frequency transmission circuit (3) back in parallel with capacitor C W and antenna (4) links with the colelctor electrode of triode N2, is connected to an inductance L 1 on another node of this parallel circuit.Described position sensing switch S1 is through one by resistance R 1, R2, the pulsed triggering circuit that capacitor C 2 and triode N1 form and linking with the input of trigger module MK.Described position sensing switch S1 and S2 are respectively equipped with P separately and Q two gears are put the sensing contact, contact P ground connection, and contact Q links through resistance R 3 and power supply.Transmitting antenna (4) is exactly the metal lock body.

The position that contact P and Q also are placed in main tapered end (1) simultaneously respectively and divide tapered end (2) can respond to the tapered end change in location, trigger module can change according to the Different Logic of its signal input part level discerns the normal switch door or the action of forcing open the door.When its input signal end S1, S2 link with the Q end simultaneously, the trigger module action, the output high level pulse is given coding unit, starts high frequency transmission circuit, sends alarm signal, and receiver is promptly finished alert program after receiving alarm signal.The utlity model has the remote alarms function, fence coverage is big, and disguised strong, the alarm signal of emission can penetrate the lock body metal screen layer, is applicable to door, multiple occasions such as car door, file cabinet, safety cabinet.

Fig. 1 is the utility model circuit block diagram.

Fig. 2 is the utility model lock body structure schematic diagram.

Fig. 3 is the utility model alarm signal transmitter circuitry figure.

Fig. 4 is the utility model master tapered end and position sensing switch S2 syndeton schematic diagram.

Fig. 5 divides tapered end and position sensing switch S1 syndeton schematic diagram for the utility model.

Fig. 6 is the utility model alarm signal receiver circuit figure.

Trigger module MK is powered by 6 pin, 1 pin ground connection, and 2,3 pin are trigger end, and 2 pin are the level triggers end, and 3 pin are the pulse-triggered end, and 4 pin are that module is removed the dried end of scratching, and 5 pin are output, and C6 is the dried electric capacity of scratching of filter.The pin 1-8 of coding unit IC is the geocoding end, and each pin can unsettledly also can connect electronegative potential, and 9 pin are earth terminal;

15 and 16 links by resistance R 4, and for IC provides intrinsic frequency, 17 pin are output, link to each other with modulation circuit, and the 10-12 pin is a coding side, 14 pin ground connection.The trigger module MK work-based logic and the course of work are: when 2,3 pin were low level entirely, complete machine was not worked, 5 pin no-outputs; When 2 for high level 3 has pulse when input, the high level that 5 pin output time is 20S.Corresponding to the switch of lock body or the state of forcing open the door is like this: lock body is at closing time, and switch S 1 all links to each other with contact P with S2, MK2,3 termination low levels, and MK does not work, 5 pin no-outputs; When main tapered end (1) being locked when advancing one grade again with key, switch S 2 is linked to each other with the Q point, S1 is constant, the MK no-output; When turning the key in the lock, switch S 2 is linked to each other with contact P, S1 links to each other with the Q point, and MK does not work; When entering when forcing open the door, divide tapered end (2) to eject, switch S 1 links to each other with Q point, the S2 state [generation when advancing] that continues to keep to link to each other by main tapered end (1) lock with Q point, at this moment MK promptly export a 20S high level pulse to high frequency transmission circuit, the startup radiating circuit.

Show in the transmitter circuitry tunable capacitor C at Fig. 3 _wGet 2-10P, C5 gets 10P, C4 and gets that 3.9P, C3 get 3.9P, inductance L 1 is 3.3 μ H, and resistance R 5 is 47K.The MK module is selected SM108 for use, and IC selects the LM8021 chip for use.Receiver circuit shown in Figure 6 is a circuit common, and no specific (special) requirements is not protected, and description is omitted.Emitter quiescent current≤2MA launches effective air line distance≤100M.(5) are lock body among Fig. 2, and (6) are dead bolt, and (7) are knob.

Claims

1, a kind of penetration wireless anti-theft alarming lock comprises the tapered end, dead bolt, the switch that are loaded on the lock body; Be loaded on the alarm signal emitter in the lock body and break away from, it is characterized in that: a position sensing switch S2 is housed on described alarming lock master tapered end (1), a position sensing switch S1 is housed on its minute tapered end (2) in the receiver each several part of this signal of lock body; The alarm signal radiating circuit is by trigger module MK, and coding unit IC and high frequency transmission circuit (3) are formed; The end of the input of trigger module MK and position sensing switch S1, S2 links, and the input of its output and coding unit IC links, and the output of IC unit links through the base stage of resistance R 5 with the input triode N2 of high frequency transmission circuit (3); Be connected to capacitor C3, C4 on the base stage of N2 simultaneously, resistance R 5, capacitor C 4, C3, triode N2 are formed the high frequency modulated circuit, and the output of this high frequency modulated circuit is to be connected to the high frequency transmission circuit of being made up of capacitor C 5, CW, antenna (4) and inductance L 1 on the colelctor electrode of triode N2.

2, penetration wireless anti-theft alarming lock as claimed in claim 1, it is characterized in that: the back in parallel with capacitor C W and antenna (4) of the capacitor C 5 in the described high frequency transmission circuit (3) links with the colelctor electrode of triode N2, is connected to an inductance L 1 on another node of this parallel circuit.

3, penetration wireless anti-theft alarming as claimed in claim 1 lock is characterized in that: described position sensing switch S1 is through one by resistance R 1, R2, the pulsed triggering circuit that capacitor C 2 and triode N1 form and linking with the input of trigger module MK.

4, penetration wireless anti-theft alarming lock as claimed in claim 1, it is characterized in that: described position sensing switch S1 and S2 are respectively equipped with P separately and Q two gears are put the sensing contact, contact P ground connection, contact Q links through resistance R 3 and power supply.

5, penetration wireless anti-theft alarming lock as claimed in claim 1, it is characterized in that: described transmitting antenna (4) is the metal lock body.