CN2459404Y

CN2459404Y - Electronic alarm lock

Info

Publication number: CN2459404Y
Application number: CN 00253589
Authority: CN
Inventors: 刘阳
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-12-25
Filing date: 2000-12-25
Publication date: 2001-11-14
Anticipated expiration: 2010-12-25

Abstract

The utility model discloses an electronic alarm lock, which is composed of a lock body, a lock core and a circuit board box. Three contacts are added on the lock body, and are connected with a time delay circuit board. When a key is inserted into a lock hole, a connecting rod is pushed, a guard sheet on the connecting rod compels two of the contacts to be switched on, and a time delay circuit starts to keep time; when definite time is exceeded, a door lock can send out a music alarm, to prompt a master to take the key; when the key is taken off, the music stops, otherwise the alarm is continuous. The utility model has the advantages of simple structure and easy installation, is a multifunctional integrated door lock which simultaneously has locking, door bell and key alarm functions, and provides safety protection for households, enterprises and institutions.

Description

The electronic alarm lock

The utility model relates to a kind of door lock assembly.

In daily life, we run into such a case through regular meeting: people are ending behind the door, owing to hasty or other reason, key are not just taken off from door lock and have been entered house.If kind neighbours are arranged through not bad, if run into unique people, consequence is just hardly imaginable.At this situation, also there is not the way that solves at present.

It is a kind of simple in structure, easy for installation that the purpose of this utility model is to provide, and has the multi-function door lock of locking, doorbell, key warning function simultaneously.

The utility model is made up of lock body, lock core, a bit prolong one section in the lock body inner top side, be connected with three contact a, b, c above, be with spring on the connecting rod, be fixed on the lock body by clamp, the front end of clamp is equipped with a catch, between catch and adjustable pad spring is installed, the switch plectrum at b point place and the relative position of catch are when key is positioned at lockhole, and in the contact of c point place, a, b, c three contacts are connected with circuit board box just.Said connecting rod lock body one end extends in the lockhole, and the other end leaves the flexible space of connecting rod; Said catch is a ring-type; But said connecting rod and catch one-shot forming.

Operating principle of the present utility model is: at ordinary times in the lock during no key, and constant close contact a, b connection.In the time of in key inserts lockhole, connecting rod is promoted backward by key, and catch forces a, b to disconnect, and b, c connect, and delay circuit is started working, if key is not extracted within a certain period of time, and J adhesive in contact in the relay K, owner is reminded in music alarm circuit work.After key was extracted, b, c disconnected, and a, b connect, and electric capacity passes through R ₂Very fast discharge, relay K discharges, and music stops, and circuit enters wait state.K switch ₁Be backup circuit breaker, can be as required with its disconnection, K ₂Be whether normal with checking circuit work, also can be with K ₂Be installed in outdoors, as doorbell.

The utility model has solved the problem that door lock does not in the past have the key alarm function, after if key inserts the interior certain hour of lock, also do not take off, door lock can send music alarm, and the prompting owner reaches key, key takes off, music stops, otherwise will report to the police always, and it has simple in structure, easy for installation, the multifunctional all door lock that has locking, doorbell, key warning function simultaneously is for family, enterprises and institutions provide safety guarantee.

Fig. 1 the utility model structural representation;

Structural representation when Fig. 2 the utility model uses;

Fig. 3 the utility model circuit diagram.

Below in conjunction with accompanying drawing the utility model is described in further detail.

Make circuit board according to Fig. 3, also have battery, loudspeaker in the circuit board box of packing into, box, and be provided with the position of sound releasing hole and switch, it is installed in the door.Locking device is made up of lock body 1 and lock core 2, a on the lock body 1, b, c point link to each other with circuit board box by three leads, connecting rod 4 is a sheet, end in lock body 1 extends to lockhole 3, it is contacted with key, fixing by clamp 5, be with a catch before the clamp, the lock-switch other end leaves the flexible space 9 of connecting rod.When lock is installed, should adjust the quantity of pad 8 according to the thickness of door, make spring 7 be in just compressed state, after key insertion hole was interior, key promoted connecting rod, and catch 6 is thereupon with constant close contact a, b, disconnection, and b, c connect, and delay circuit is started working, and the time is used R ₁Adjust delay time, can be set at 10 seconds or 15 seconds, overtime is promptly reported to the police.

Claims

1. the electronic alarm lock is made up of lock body, lock core, what it is characterized in that the lock body inner top side a bit prolongs one section, be connected with three contact a, b, c above, be with spring on the connecting rod, be fixed on the lock body by clamp, the front end of clamp is equipped with a catch, between catch and adjustable pad spring is installed, the switch plectrum at b point place and the relative position of catch are when key is positioned at lockhole, and in the contact of c point place, a, b, c three contacts are connected with circuit board box just.

2. according to the described electronic alarm lock of claim 1, it is characterized in that said connecting rod lock body one end extends to lockhole, the other end leaves the flexible space of connecting rod.

3. according to the described electronic alarm lock of claim 1, it is characterized in that said catch is a ring-type.

4. lock according to the described electronic alarm of claim 1, but it is characterized in that said connecting rod and catch one-shot forming.