CN2320743Y - Built-in lock - Google Patents

Abstract

The utility model relates to a built-in lock, which is arranged on a door for protection. A spring lock bolt 1 is difficult to shift after being locked into a clamping seat 2 after a door is closed, playing the function of reverse locking, and thus an owner can be relaxed. One end of the spring lock bolt extends out of a lock body under a normal state; the protruded end of the spring lock bolt is formed into an end surface 3 which is a cross section; the side face of the clamping seat of the lock bolt is provided with an integrated beveloid 4; the protruded end of the lock body enters into the corresponding hole of the clamping seat after sliding along the beveloid in the process of closing the door to lock the door. The end surface of the lock bolt is not formed into an inclined surface, and thus after the utility model is locked, the lock bolt is difficult to be shifted by other objects, playing the function of reverse locking.

Description

Built-in lock

The utility model relates to a kind of built-in lock that is used on the door.

Built-in lock is that door is gone up a kind of common precautionary measures.It is easy to use, in the process of shutting the door after you on just door lock, and plays safety effect when going out.Comparatively advanced at present built-in lock is that two dead bolts are arranged in the lock body; One is to be subjected to spring controlled dead bolt, and an end always stretches out lock body, and external part is a clinohedral, can claim spring latch; The dead bolt deck that spring latch is fixed in the process of closing the door on the doorframe pushes up back lock body, makes spring latch stretch into this hole under the effect at spring during corresponding aperture on aiming at the dead bolt deck.Another is the dead bolt that is subjected to key control, and in lock body, external do not have an external part, can claim key control dead bolt under the normality, and it is to stretch out to snap on the dead bolt deck in the corresponding aperture under the effect of key, also claims to lock, and it stretches out end face is the cross section, and rectangle or circular face are arranged; Return lock body by key in the process of opening the door, wherein key control dead bolt must could be return lock body by deck under the effect of key.Because habituation dislikes trouble, or go out to worry often to close and no longer lock behind the door, but problem is just going out among carelessness, the lawless person can insert from crack between a door and its frame with harder strip of foil, strip of foil acts on the spring latch angled end-face, can squeeze back lock body to dead bolt with the not long time door is opened, and steals and commits theft, this stolen family of picture and unit are of common occurrence, and generation is often arranged.

The purpose of this utility model is to overcome the deficiency that exists in the above-mentioned present technology, and the built-in lock that provides a kind of spring latch to be difficult for being struck helps safety.

The purpose of this utility model can reach by the following technical programs: spring latch external part formation end face and self axial line are perpendicular, have to make the clinohedral of dead bolt external part along its slip on the side of dead bolt deck.The dead bolt external part is along sliding on the clinohedral in the process of shutting the door after you, and when slipping into the deck end face, the dead bolt external part can spring in the corresponding lockhole, and the first road dead bolt is on the door lock.This dead bolt external part does not form clinohedral, and portion is consistent with body, thereby is difficult for being struck, and can reach purpose of design.

All put on doorframe when the dead bolt deck, does not expose its side, and clinohedral can be fixed on the relevant position, doorframe side, so that the dead bolt termination is along its slip and enter in the deck corresponding aperture.

The utility model is compared with above-mentioned present technology can have following advantage: the spring latch external part does not form clinohedral in this built-in lock, and its end face is the cross section, is difficult for being struck after locking, and plays the effect of locking, and makes owner relieved; Certainly can lock key control dead bolt safer.

Accompanying drawing 1 is the utility model front view;

Accompanying drawing 2 is Fig. 1 vertical views.

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

In conjunction with the accompanying drawings shown in 2, at spring latch 1, this dead bolt stretches out lock body under normal conditions by accompanying drawing 1, and external part is formed end face 3.This end face 3 is that cross section and self axial line are perpendicular; The clinohedral 4 that one is arranged on the side of dead bolt deck 2, the spring latch external part can slide along its clinohedral.When dead bolt deck 2 all is bumped into door frames, its clinohedral 4 can be fixed on the relevant position, doorframe side.

Claims (2)

1, a kind of upward built-in lock of door that is contained in order to take precautions against, have spring latch (1) and dead bolt deck (2), it is characterized in that: spring latch (1) external part forms end face (3), has to make the clinohedral (4) of dead bolt external part along its slip on the side of dead bolt deck (2).

2, built-in lock according to claim 1 is characterized in that: when dead bolt deck (2) all is bumped into door frames, its clinohedral (4) can be fixed on the relevant position, doorframe side.

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