CN2727322Y - Anti-prying door lock - Google Patents

Abstract

The utility model relates to an anti-prying door lock which is used in families or other occasions to prevent from prying and the theft. The utility model comprises a rectangular lock body (1), a bolt (2) with an inclined surface, a lock case (3) containing the bolt; the bolt and the lock body are integrative; the anti-prying door lock is characterized in that the shape of the bolt (2) with an inclined surface is changed into a rectangle; the position of the bolt (2) on the lock body is not changed; the lock body and the bolt (2) are connected together, via the lock core. The anti-prying door lock has a broad range of application, relating to tens of thousands of families; therefore, the economical and social benefits are obvious.

Description

A kind of pick-proof door lock

Technical field

The utility model relates to a kind of Door lock guarding against prizing, relates to a kind of mechanical Door lock guarding against prizing or rather, belongs to the family public security equipment technical field.

Background technology

With the raising of seeing development and national economy and people's lives, domestic environment progressively improves, and the household safe criminal of preventing problem is just put in face of each family member.Be furnished with on the minority family wear the security door of anti-sledge lockset, all the other are most, and other still adopts is the door lock of selling on city's field boundary.

At present, existing safe-guard door lock is divided into two classes basically: one is mechanical door lock; Two is the electronic type door lock.The latter is senior door lock, generally is fit to luxurious hotel and grand hotel; Mechanical door lock is fit to family or general restaurant or common office formula door use because it is simple in structure, cost is low.

The mechanical type safe-guard door lock, its typical structure is: tapered end and dead bolt and lock housing, the dead bolt majority is a triangle.This dead bolt with inclined-plane has advantage simple in structure, easy to use, but also provides opportunity for the robber.

Summary of the invention

The purpose of this utility model is to provide a kind of safe-guard door lock, and the dead bolt of this door lock is a kind of cuboid, and the inclined-plane of dead bolt makes to be the plane into, just not by the tamper tool with card or chi and so on.

In order to achieve the above object, technical solution scheme of the present utility model is: keep lock head structure constant substantially, just only need change the dead bolt shape: as square or circular, add that a snap close gets final product.

The beneficial effects of the utility model: because door lock relates to huge numbers of families, use face is extremely wide, and this door latch structure is simple, cost is low, and anti-sledge performance is good, has considerable economic.

Description of drawings

Fig. 1 is a Door lock guarding against prizing prior art constructions schematic diagram;

Fig. 2 is the structural representation of Door lock guarding against prizing of the present utility model;

Fig. 3 is the structural representation of another embodiment of the present utility model;

Fig. 4 installs and uses the contrast schematic diagram for the Door lock guarding against prizing of the utility model and prior art.

Below in conjunction with drawings and Examples to the utility model detailed explanation of making comparisons.

The specific embodiment

With reference to Fig. 1, this is a kind of prior art constructions schematic diagram of Door lock guarding against prizing.

1 is the tapered end of door lock among the figure, and 2 is dead bolt, is the dead bolt of a band slope shape, is positioned at the right-hand member of tapered end, and tapered end mostly is installed on the door, and lock housing 3 is relative therewith, is installed on the doorframe, and when locking a door, dead bolt stretches into lock housing, just can be with on the door lock.The door lock that has also has snap close, to ensure that lock is not arbitrarily pried open.This is the situation of the door lock of prior art.

With reference to Fig. 2, this is a Door lock guarding against prizing structural representation of the present utility model.

4 is the tapered end of Door lock guarding against prizing of the present utility model among the figure, and 5 is dead bolt, and this dead bolt is a rectangle, substitute the latch bolt position on the existing tapered end, this dead bolt is withdrawn in the tapered end 4 at ordinary times, with rotating in the key insertion tapered end, just dead bolt can be released when locking a door, enter lock housing 6, add the lock in the tapered end, just door lock can be fixed on this state, do not have identical key, just do not open the pick-proof door lock, reach the purpose of anti-theft pick-proof.

With reference to Fig. 3, this is the structural representation of another embodiment of the present utility model.

The schematic diagram of the above embodiments is to improve later knot Chinese holly, is suitable for the door lock of most of type on the market, as long as the inclined-plane dead bolt makes the right angle on figure, the dead bolt external member is added that an inclined-plane gets final product.

(Fig. 4-A, Fig. 4-B), this is that the door lock of prior art is when locking a door and the utility model pick-proof door lock situation schematic diagram when locking a door with reference to Fig. 4.

As can be seen, after dead bolt stretches into lock housing, from putting in instrument such as a card outdoors, just tapered end can be pushed back in the tapered end at leisure among Fig. 4-A, door is pried open, and robber just inlet chamber commits theft.

With reference to Fig. 4-B as can be seen, dead bolt can't promote when card stretches into to make in its withdrawal tapered end owing to be the rectangle slope-less, thereby plays the effect of pick-proof and anti-theft.

Claims (2)

1, a kind of pick-proof door lock, be used for family or other field boundarys close anti-theft pick-proof, it comprises that the dead bolt (2) and on a square tapered end (1), a band inclined-plane holds the lock housing (3) of dead bolt, dead bolt and tapered end are one, it is characterized in that: described dead bolt (2) changes into rectangular-shaped by the shape on band inclined-plane, invariant position on installation site and the tapered end, the rectangle dead bolt just stretches into lock housing (3) when locking a door.

2, pick-proof door lock as claimed in claim 1 is characterized in that:

Core body in described dead bolt (2) and the tapered end (1) links together.

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