CN201144543Y

CN201144543Y - Anti-theft single bolt door lock

Info

Publication number: CN201144543Y
Application number: CNU2008200014396U
Authority: CN
Inventors: 黄洪涛
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-01-02
Filing date: 2008-01-02
Publication date: 2008-11-05
Anticipated expiration: 2018-01-02

Abstract

The utility model relates to a burglarproof single-bolt door lock which is characterized in that a burglarproof groove is arranged at the place where an oblique opening of the bolt of a prior single-bolt door lock is near a lock body box, thus preventing the door from being opened abnormally by using a thin sheet to force the bolt to pull back under the effect of external force.

Description

A kind of antitheft single flapper lock

Affiliated technical field

The utility model relates to a kind of antitheft single flapper lock.

Background technology

At present, known single flapper lock is made up of lock body and keeper two parts, the dead bolt of lock body is an angle, the spring interior owing to dead bolt and lock body is connected, dead bolt is scalable, and without key at closing time, dead bolt at first clashes into the keeper edge and is forced to compression, spring into then in the keeper, reach the purpose of locking door.But because dead bolt is an angle, the inclined-plane smoothly and outwardly, dead bolt can compress in lock body, and the certain slit of maintenance between lock body and the keeper, so door lock under locking states, is easy to from firmly disclosing the lock that opens the door by a kind of thin slice outdoors, is about to thin slice and inserts the door lock seam, firmly oppress dead bolt and shrink, can open the door without key.Some thief makes instrument with regard to the thin slice that is to use first generation identity card and so on, can disclose the lock that opens the door, burglary easily.Though having two flappers to lock out, present market sells, an oblique tongue, a square tongue in two tongues, and square tongue is not easy to be disclosed out, and has anti-theft feature.But a lot of users usually shut the door after you, and an inclined tongue of lock and do not lock or forget lock side tongue is therefore to being entered the room the thief with opportunity.

Summary of the invention

Lock the relatively poor problem of antitheft coefficient in order to overcome existing single flapper, the utility model provide a kind of be provided with antitheft groove, can be effectively antitheft novel single flapper lock.

The technical scheme that its technical problem that solves the utility model adopts is: the dead bolt angle at existing single flapper lock is established antitheft groove together by the lock case place.The wide about 6mm of groove, about deeply 3mm.When from door lock seam insertion thin slice, thin slice is introduced directly into antitheft groove, can't stretch to the dead bolt angle, reaches improper situation generation of opening the door thereby fundamentally prevent to use thin slice to oppress the dead bolt contraction under external force.The keeper that matches is also done corresponding transformation, promptly establish the wide oblique bank of about 6mm one at the edge of contact dead bolt angle, so that force dead bolt to shrink by the bump keeper when shutting the door after you, because the dead bolt angle can move about 6mm outward with the contact wire of keeper after having offered antitheft groove.Other technologies and existing single flapper are phase-locked together.

The beneficial effects of the utility model are to prevent to adopt thin slice to apply the situation generation that external force is disclosed out single flapper lock, reach antitheft purpose.And this single flapper lock that is provided with antitheft groove has been arranged, just do not need two flapper locks of the side's of having additional tongue, thereby reduce the cost of production of door lock.

Description of drawings

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

Fig. 1 is the single flapper lock lock body schematic diagram that is provided with antitheft groove, the A handle, and the B lock case is the lock body enclosure portion, the antitheft groove of C, D dead bolt;

Fig. 2 is a lock body dead bolt vertical view, the antitheft groove of E, F dead bolt;

Fig. 3 is the keeper schematic diagram, the oblique bank of G, F keeper.

The specific embodiment

The utility model can be by transforming the productions of dead bolt and keeper mould execution standardization, also can be on the basis of existing single flapper lock, take the way of frustrating antitheft groove and on keeper, installing pad additional opening on the dead bolt, and arrive same anti-theft effect.

Claims

1, the utility model relates to a kind of antitheft single flapper lock, it is characterized in that: the dead bolt angle at existing single flapper lock is established antitheft groove together by the lock case place, fundamentally prevents to use thin slice to oppress the dead bolt contraction under external force and reaches improper situation generation of opening the door.

2, according to the described a kind of antitheft single flapper lock of claim 1, it is characterized in that: tiltedly bank is established together at the keeper edge at contact dead bolt angle, so that force dead bolt to shrink by the bump keeper when shutting the door after you.