CN2157961Y

CN2157961Y - Anti-theft alarming door lock

Info

Publication number: CN2157961Y
Application number: CN 92236561
Authority: CN
Inventors: 曹新和
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-10-08
Filing date: 1992-10-08
Publication date: 1994-03-02
Anticipated expiration: 2002-10-08

Abstract

The utility model relates to an anti-theft alarming door lock device which belongs to the technical field of the safety equipment. The fixing bolt structure of an ordinary built-in lock and the opening and closing structure of a door are utilized and are matched with each other, and the utility model is connected with a simple alarm circuitry control part which is composed of a relay control switch, a door lock control switch, a doorframe limit switch, a fuse, an alarm, a transformer and a circuit switch; so the utility model is a safety-typed door lock which has anti-theft and alarming functions. The utility model has the advantages of simple structure and low cost. The utility model can be used for family and various office places.

Description

Anti-theft alarming door lock

A kind of novel burglar-proof alarm door lock belongs to security personnel's equipment technology field.

Existing multiple alarm door lock, though its certain effect is all arranged, but they are in that to utilize the lock body self structure to install additional aspect the line construction of warning device and controlling alarm part all comparatively complicated, the production application cost is higher, be difficult to promote, be directed to this, the applicant proposes a kind of new comparatively simple technical scheme.

The purpose of this utility model is to provide a kind of safety type door lock that can play the burglar alarm effect.

The principle that the utility model design adopts circuit control to report to the police, promptly when the door that alarm door lock is installed was opened by impact, the doorframe limit switch resetted, and the engage relay gauge tap also makes alarm work.

The technical solution of the utility model is to utilize the on-off structure of the slow-witted tongue structure of lock body itself and door and is connected comparatively simply the controlling alarm line unit forms a kind of alarm door lock.

The utlity model has simple in structure, be easy to produce, advantage that cost is very low, existing common built-in lock improved a little it is become have warning function, the safety type door lock of anti-theft effect, be suitable for applying.

Accompanying drawing 1 is the control circuit schematic diagram of alarm door lock; It also is appointed Figure of abstract.

Accompanying drawing 2 is the structural representation of door lock gauge tap KK.

Further specified and provided embodiment below in conjunction with accompanying drawing.

Referring to accompanying drawing 1, the alarm door lock device is interconnected and connected alarm FN by door lock gauge tap KK, relay XJ, contactor K, doorframe limit switch XK, transformer B to be formed.Relay XJ has two often to start and close contact XJ ₁And XJ ₂, contactor K is by fuse RD and often start and close contact XJ ₁FN is connected with alarm, often starts and closes contact XJ ₂Be connected with door lock gauge tap KK with the doorframe limit switch and constitute the work loop, doorframe limit switch XK is connected with door lock gauge tap KK and controls alarm FN by relay.Referring to accompanying drawing 2, door lock gauge tap KK is made up of lock body ［ 1 ］, movable lug ［ 2 ］, slow-witted tongue ［ 3 ］, electrode reed ［ 4 ］ and insulating slab ［ 5 ］.Electrode reed ［ 4 ］ is installed on an end of insulating slab ［ 5 ］ and insulate with lock body ［ 1 ］, electrode reed ［ 4 ］ is as the electrode contacts of gauge tap KK, be installed near below the slow-witted tongue ［ 3 ］ of tapered end, another contact conductor of gauge tap KK fixedly is connected on the lock body, when the slow-witted tongue of this lock stretches out, two electrode contacts of door lock gauge tap KK are connected, and promptly reed electrode and lock body electrode are connected; When the slow-witted tongue of this lock is regained, two electrode contacts of KK disconnect, therefore, door interlock switch KK can be connected in the lock core fixed electrode spring leaf and is fixed on the electrode on the lock body shell and connect and be attached thereto the alarm circuit that connects by the telescopic movable of the dead bolt in the door lock key control lock body.Door interlock switch uses the safe voltage of 6V.The limit switch KK of door lock is located at dress hinge door or doorframe position on one side, digging a sulculus on the door or on the doorframe and putting into a switch as the alarm command switch, the generation of angle or disappear to change change the action of switch between the hinge between door and the doorframe when door is opened or shuts is connected the constant close contact of its limit switch XK to reset or is disconnected.Door interlock switch KK and limit switch XK interconnect and are used, promptly when opening door lock with key, because slow-witted tongue withdrawal resets, the electrode contacts of door interlock switch disconnects, although this moment, limit switch was connected alarm circuit, alarm FN can not work yet, when door is closed, limit switch disconnects alarm circuit, even door interlock switch is connected alarm circuit, alarm FN can not work yet.When using this alarm door lock, should earlier door be closed, the constant close contact of limit switch XK is disconnected, cause the relay XK can not adhesive work, will stay tongue with key again and stretch out, make door interlock switch KK connect, at this moment, the alarm instruction that all can accept limit switch XK is at any time reported to the police.When not using this device, the slow-witted tongue of door lock should be regained, cut off door interlock switch KK circuit, make the relay XJ can not adhesive work, also can it be quit work the contactor K manual-lock in the line unit.

Claims

1, a kind of alarm door lock is characterized in that it is connected by contactor K, relay control switch XJ, door lock gauge tap KK, doorframe limit switch XK, transformer B, the mutual circuit of fuse RD, alarm FN and is connected with fixed electrode spring leaf in the lock core and a kind of alarm door lock of forming; Doorframe limit switch XK is the position controlling switch on a kind of hinge doorframe on one side that is located at door; Said door interlock switch KK is a kind of Alarming control switch of being connected fixed electrode spring in the lock core and be connected with alarm circuit by the telescopic movable of door lock key control dead bolt; Said electrode spring sheet is fixed on the insulating slab and is installed in the lock core near staying tongue on one side, electrode spring sheet in the lock body and lock body insulation.