CN2580048Y

CN2580048Y - Radio anti-theft alarm lock

Info

Publication number: CN2580048Y
Application number: CN 02279755
Authority: CN
Inventors: 潘昌盛
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-10-28
Filing date: 2002-10-28
Publication date: 2003-10-15
Anticipated expiration: 2012-10-28

Abstract

The utility model relates to a wireless anti-theft and alarm lock. The utility model comprises a lock body, a lock rod, a connecting rod, position sensing switches and a telescopic small tongue which are arranged on an anti-theft door, an alarm signal transmitter and an alarm signal receiver. The anti-theft door is provided with the position sensing switch S2 corresponding to the end part of the connecting rod of the lock. The telescopic small tongue is positioned on the side surface of the anti-theft door, and is provided with the position sensing switch S1. An alarm signal transmitting circuit is composed of a triggering module MK, an encoding unit IC and a high-frequency transmitting circuit 3. The utility model has remote alarm function, large warning range and strong invisibility. The transmitted alarm signal can penetrate through the metal shielding layer of the lock body. Compared with antitheft products of other types, the utility model has no use of the remote controller, which furthest avoids false alarm caused by improper use. The utility model has no need of the external power supply, which avoids the failure alarm caused by power failure or man-made sabotage on power utilization facilities. The utility model is suitable for various occasions of house doors, garage doors, file cabinets, safe cabinets, etc.

Description

Wireless anti-theft alarming world lock

Technical field

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

Background technology

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.The fence coverage of onsite alarming is very limited, and the thief that is stolen easily is vindictive damages and lost efficacy.World lock is present security door a kind of mechanical lock commonly used, though it has good pick-proof performance, can not stop the burglar to sabotage.

Summary of the invention

The purpose of this utility model is in order to solve the deficiency that the above-mentioned background technology exists, to provide a kind of and can come the wireless anti-theft alarming world lock of alarm host machine duty in the control room according to the action that world lock opens the door, closes the door, locks a door.

The utility model adopts following technical scheme for achieving the above object: a kind of wireless anti-theft alarming world lock comprises the lock body, locking bar, connecting rod, position sensing switch and the flexible uvula that are loaded on the security door; The receiver each several part of alarm signal emitter and this signal, it is characterized in that: on security door, position sensing switch S2 is housed with lock interlinking lever end corresponding position, the world, flexible uvula is positioned at the side of security door, at flexible uvula place one position sensing switch S1 is housed; 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.

Capacitor C 5 in the described high frequency transmission circuit 3 links with the colelctor electrode of capacitor C W and antenna 4 backs in parallel and 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.When flexible uvula A indentation, S1 links to each other with contact P point, and when stretching out, S1 links to each other with the Q point; When world lock pinned, S2 linked to each other with contact Q, and when opening, S2 links to each other with contact P.

Position sensing switch S1 of the present utility model, S2 also are placed in simultaneously on the security door position that can sensed position changes respectively, and trigger module can change according to the Different Logic of its signal input part level be discerned normal switch or force open the door action.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.

Concrete operating principle of the present utility model is: when the user at closing time, in the flexible uvula indentation door, the position sensing switch S1 that meanwhile is positioned at flexible uvula place disconnects, when the user locks a door with key, along with the action of world lock, world lock interlinking lever end can be pushed down position sensing switch S2, and S2 is closed, circuit part is along with sending high-frequency carrier signal, comes that alarm host machine is on the alert in the control room.After this, if there is the people illegally to enter the room from balcony or window, indoor infrared probe sends the signal enabling alarm host machine at once, notifies the user with liaison mode, and the scene does not have sound, also can install the onsite alarming device as required additional; When the user used the key normal door, lock interlinking lever end meeting released position sensitive switch S2 in the world opened S2, removes the state of alert of indoor alarm host machine; If the thief forces open the door and goes into, flexible uvula can eject automatically, and the position sensing switch S1 of its connection and then closes, and reports to the police thereby send the signal enabling alarm host machine.

The utlity model has the remote alarms function, fence coverage is big, disguised strong, the alarm signal of emission can penetrate the lock body metal screen layer, compare with the anti-theft product of other type, remote controller of no use, avoided to greatest extent because the wrong report that improper use causes: its external power supply of no use, avoided because failing to report of causing of power failure or artificial destruction electricity consumption facility.The utility model is applicable to door, and multiple occasion such as car door, file cabinet, safety cabinet is used.

Description of drawings

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 alarm signal receiver circuit figure.

Among the figure, 1-security door, 2-doorframe, 3-high frequency transmission circuit, 4-antenna, 5-world lock interlinking lever end, 6-world lock locking bar, 7-connecting rod, flexible uvula 8.

The specific embodiment

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; Pin 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.The utility model alarm signal transmitter circuitry can be locked apart arrangement with the world.

Switch or the state of forcing open the door corresponding to world lock are like this: the user is at closing time, and in the flexible uvula 8 indentation doors, the position sensing switch S1 that meanwhile is positioned at flexible uvula 8 places links to each other with contact P.When the user locked a door with key, along with the action of world lock, world lock interlinking lever end 5 can press position position sensing switch S2 to link to each other with contact Q, MK3 termination low level, and MK2 termination high level, MK does not work, 5 pin no-outputs; When turning the key in the lock, world lock interlinking lever end 5 can contact with contact Q by released position sensitive switch S2, and switch S 2 is linked to each other with contact P, and after door was opened, flexible uvula 8 ejected, and the position sensing switch S1 that is positioned at flexible uvula 8 places links to each other with the Q point, and MK does not work; When entering when forcing open the door, flexible uvula 8 can eject, and position sensing switch S1 links to each other with Q point, the S2 state [generation when locking into] that continues to keep to link to each other by the world with Q point, at this moment MK promptly export a 20S high level pulse to high frequency transmission circuit, the startup radiating circuit.

In Fig. 3 transmitter circuitry, tunable capacitor Cw gets 2-10P, and 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.

Claims

1, a kind of wireless anti-theft alarming world lock comprises the world lock lock body, world lock locking bar, connecting rod, position sensing switch and the flexible uvula that are loaded on the security door; The receiver each several part of alarm signal emitter and this signal is characterized in that: with the interlinking lever end corresponding position position sensing switch S2 is housed on security door, flexible uvula is positioned at the side of security door, at flexible uvula place one position sensing switch S1 is housed; 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, lock according to the described wireless anti-theft alarming of claim 1 world, it is characterized in that the capacitor C 5 back colelctor electrode with triode N2 in parallel with capacitor C W and antenna (4) in the described high frequency transmission circuit (3) links, and is connected to an inductance L 1 on another node of this parallel circuit.

3,, it 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 according to the described wireless anti-theft alarming of claim 1 world lock.

4, lock according to the described wireless anti-theft alarming of claim 1 world, 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, when flexible uvula indentation, S1 links to each other with contact P point, and when stretching out, S1 links to each other with the Q point; When world lock pinned, S2 linked to each other with contact Q, and when opening, S2 links to each other with contact P.