CN2470477Y - Anti-theft alarming steel-wire lock - Google Patents

Abstract

An anti-theft alarm steel wire lock, which particularly generates the alarm sound when the steel wire is cut by a larcenist so as to scare the larcenist to make the vehicle not lost. A warning buzzer, a battery, a relay and a trigger line whose outer surface is insulated are added based on the ordinary steel wire lock. The trigger line is enwound from the head to the tail end along a steel wire spiral line; a conductive line is educed from the steel wire, which forms a self-locking circuitry together with the buzzer, the battery, the relay and the trigger line. When the steel wire is cut by the larcenist, the insulation layer of the trigger line is destroyed so that the trigger line will be communicated with the steel wire to make the relay closed and maintain self-locking state. Then the battery keeps providing power for the buzzer which generates alarm sound, thereby scaring the larcenist so as to avoid the loss of the vehicle.

Description

The burglar alarm steel wire lock

The utility model relates to a kind of burglar alarm steel wire lock, particularly can send the steel wire lock of chimes of doom when the lockset steel wire partly is subjected to shearing.

At present, the steel wire lockset is because of its practicality; Convenient; Firmly and in daily life generally use.It is mainly used to lock bicycle motorcycle and various article.Its specification is of a great variety, and main distinguish is at the branch of wire rope thickness; The branch of wire rope length; The branch of tapered end size.Structure mainly reaches the wire rope that connects with tapered end by tapered end and forms.The wire rope latter end has dead bolt, and tapered end partly has lockhole.So just steel wire penetrating locked object body can be turned back to then tapered end and dead bolt be inserted lockhole object is pinned, so utilize general purpose tool steel wire lock can't be destroyed.But just be easy to steel wire is partly cut off, so cause bicycle motorcycle to lose this phenomenon easily with cutting pliers.If the increase steel wire diameter, though can make the guiding principle silk be difficult to cut off like this, the volume weight of lockset own all increases, and brings inconvenience again for the user.

The purpose of this utility model provides a kind of steel wire lock, and it not only plays the effect of general lockset, and, when steel wire is cut and do not cut off,, this lock stealer is got a fright avoid vehicle to lose thereby sending chimes of doom.

The purpose of this utility model is achieved in that has increased the 15v laminated cell on the basis of original steel wire lock; Have the 12v relay of one group of normally closed constant open contact and can send the buzzer of chimes of doom.The positive pole of 15v battery connects the input endpoint of buzzer and relay coil simultaneously, on the common point of common connection of the exit point of relay and buzzer simultaneously and relay, forms configuration in parallel.In addition the exit point of relay coil also to connect the insulation of external surface lead as triggering line, this root conductor length is decided on steel wire length, and from first to last is wrapped on the wire rope external surface.The negative pole of 15v battery connects with wire rope, and connects the constant open contact of relay simultaneously, has formed the self-locking alarm circuit like this.When stealer is sheared wire rope, because the wire rope external surface is twining the triggering line, under the effect of shearing force, destroyed the insulating layer that triggers line, cause and trigger line and wire rope conducting.Connect the relay coil exit point because of triggering line, wire rope connects the 15v GND, and it causes relay coil to get electric and adhesive after leading together.The common point of relay and constant open contact are connected after the adhesive, connect the exit point of buzzer and relay coil on the common point simultaneously, form self-locking state like this.To buzzer and relay coil power supply, buzzer sends chimes of doom to the 15v battery, and stealer is got a fright, thereby avoids vehicle to lose simultaneously.

Because adopt such scheme, steel wire lock has warning device, thereby avoids vehicle to lose.And the self-locking circuit is simple and reliable.

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 be of the present utility model be circuit theory diagrams.

Fig. 2 is the anatomic construction figure of burglar alarm steel wire lock embodiment.

Among the figure: 1, shell 2, tapered end 3, relay 4, laminated cell 5, buzzer 6, relay coil 7, relay normally open contact 8, wire rope 9, trigger 10, vocal hole.

In figure one, buzzer (5) is configuration in parallel with relay coil (6), wherein connects with laminated cell (4) is anodal, and another point connects with the relay common point.This point also will connect triggering line (9) simultaneously.Laminated cell (4) negative pole and constant open contact (7) wire rope (8) are linked in sequence.

In figure two example illustrated, tapered end (2) relay (3) laminated cell (4) buzzer (5) is packed in the steel tubular shell (1) together, and presses circuit shown in the figure one and connect, and fixes with poured with epoxy resin then.Have circular hole in the relative part with keyhole of shell, key can be unblanked in this insertion.Have circular hole in the relative part with lockhole of shell, dead bolt can will pin in this insertion.

Claims (4)

1, a kind of steel wire lock of being made up of tapered end and wire rope is characterized in that: by relay; Laminated cell; Buzzer; Trigger line; Wire rope is formed the self-locking alarm circuit.

2, steel wire lock according to claim 1 is characterized in that: relay coil connects the anodal and relay common point of laminated cell respectively with after buzzer is in parallel.

3, steel wire lock according to claim 1, its special levying is: the triggering line is connected with the relay common point and from first to last is wrapped on the wire rope closely.

4, steel wire lock according to claim 1 is characterized in that: tapered end; Laminated cell; Buzzer; Relay is packed in the tubular metal housing together, and is being drilled with several vocal holes near the buzzer position.

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