CN2280137Y

CN2280137Y - Two pins vertical insertion type alarming door lock

Info

Publication number: CN2280137Y
Application number: CN 96247983
Authority: CN
Inventors: 仝运长
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-12-16
Filing date: 1996-12-16
Publication date: 1998-04-29
Anticipated expiration: 2006-12-16

Abstract

The utility model discloses a two-pin vertically inserted type alarm door lock which comprises a lock body, a lock catch, an alarm circuit and a conducting wire, wherein, the lock catch is composed of an upper and a lower concentric lock noses, wherein, one of which is provided with a pressure switch. The utility model has the advantages of novel structure and reliable performance, and is especially suitable for installation and use of anti-theft doors and house doors.

Description

Two pawl vertical insertion type alarm door locks

The utility model relates to a kind of alarm door lock, especially a kind of pair of pawl vertical insertion type alarm door lock.

The alarm door lock of Chu Xianing is mostly installed microswitch in lock body in the market, connect warning circuit by the action of microswitch and send chimes of doom, this kind alarm door lock can play antitheft preferably effect, but also there are some shortcomings, because the lock body inner body is more, can utilize the space little, microswitch is loaded in the lock body, very difficult during installation, switch easily produces misoperation, and the lead-out wire of switch all needs to receive on the wall by door leaf again, and appearance is very not attractive in appearance, because door leaf often rotates, thereby makes the lead frangibility on the door leaf influence the warning performance.

The purpose of this utility model provides a kind of novel structure, two pawl vertical insertion type alarm door locks convenient, the warning dependable performance connect up.

The technical solution of the utility model is: a kind of pair of pawl vertical insertion type alarm door lock, comprise lock body, snap close, warning circuit, battery and lead, wherein snap close is made up of two parallel concentric lock noses up and down, on the inwall of a lock nose an annular insulating layer is housed therein, on insulating layer, be equipped with a pressure switch, this pressure switch is made up of two arc metal plates, and the lead of drawing from sheet metal links to each other with warning circuit with power switch respectively.

Because this warning door lock is contained in switch in the lock nose of snap close, the lead-in wire of switch can be drawn from doorframe, and needn't connect up on door leaf, and the wiring amount of this alarm door lock is significantly reduced, in the lock nose, the faulty action preventing pressure switch has been installed simultaneously, can have further strengthened the reliability of this alarm door lock.

Below in conjunction with drawings and Examples the utility model is described in further detail;

Fig. 1 is the lock body structure schematic diagram;

Fig. 2 is the lock nose structural representation that pressure switch is housed;

Fig. 3 is the buckle structure schematic diagram;

Fig. 4 is the utility model circuit diagram.

Structure of the present utility model such as Fig. 1, Fig. 2, shown in Figure 3 are made of snap close 1 and lock body 8, and two lock pawls 7 are arranged in the lock body 8, and two lock noses 2 are arranged on the snap close 1, and the structure of lock nose 2 is equipped with an annular insulating layer 10 as shown in Figure 2 on the inwall.One pressure switch K is housed on insulating layer 10, and this pressure switch is made up of two arc metal plates 11,12.

The utility model circuit control principle as shown in Figure 4, two outputs of pressure switch K respectively with power switch K ₁Link to each other with warning circuit, warning circuit is by XG902N pattern piece, and alarm, lead and battery are formed, with power switch K ₁Closure, warning circuit is ready.

The course of work of the present utility model makes door lock be in the full lock state, locks pawl 7 this moment and inserts in the lock nose 2, when external force is hit door or is forced open the door, lock pawl 7 extrusion metal sheet 11 at first, after external force surpassed the elastic force that sheet metal 11 sets, sheet metal 11 guide alarm circuit that contacts with 12 sounded the alarm.

Claims

1, a kind of pair of pawl vertical insertion type alarm door lock, comprise lock body, snap close, warning circuit, battery and lead, wherein snap close is made up of two parallel concentric lock noses up and down, it is characterized in that, on the inwall of a lock nose an annular insulating layer is housed therein, be equipped with a pressure switch on insulating layer, this pressure switch is made up of two arc metal plates, and the lead of drawing from sheet metal links to each other with warning circuit with power switch respectively.