CN2518971Y - Safety cylinder lock - Google Patents

Abstract

The utility model provides a safe night lock, which is characterized in that the press spring in the lock body is internally provided with a spring inner support with a length in the following range: the length can be less or equal to the margin of the axial length of the press spring in the lock outer hole and the length of the inner hole of lock plunger; or the length can be larger than the margin of the axial length of the press spring in the lock outer hole subtracting the length of the inner hole of lock plunger and the length of the side hole of lock plunge. Due to the structure, the utility model can ensure that the lock can smoothly open with the key; when a master key or a lock opener opens the lock, the inside night can not be extruded out from the side hole of the lock plunger, forming a destructive lock opening state, thereby the opening of the lock with other keys can be effectively prevented.

Description

A kind of safe spring lock

The utility model patent relates to a kind of cylinder lock, particularly relates to the cylinder lock of a kind of preventing universal key and lockaid gun etc.

Existing cylinder lock (padlock, door lock and other) because structural problem, is not prevent that master key and lockaid gun from unblanking, and is difficult to carry out industrial production exactly.Guarantee the length of stage clip because the locking bolt side opening of cylinder lock is very short again, make stage clip elasticity preferably be arranged, thereby can unblank flexibly inside and outside pellet shot from a slingshot.Therefore when cylinder lock uses master key or lockaid gun to unblank, be easy to be opened.

The utility model purpose is under the basic structure situation that does not change existing cylinder lock, improves the security insurance of cylinder lock, and this lock key of nothing person can not be opened lockset easily.

The utility model patent is realized by following scheme:

The same with common cylinder lock, form by core, lock tube, pellet shot from a slingshot, stage clip etc., just in the lock stage clip, increase a pillar, its diameter is slightly less than the internal diameter of stage clip.Choose in the length scope below: deduct hole length in the locking bolt smaller or equal to the axial length of stage clip in the lock apertura lateralis; Deduct locking bolt endoporus and side opening length greater than the axial length of stage clip in the lock apertura lateralis.Make like this to be locked under the situation of not having this lock key no matter use master key or lockaid gun, lock inboard pellet shot from a slingshot and can all not support out core, therefore, lock can not be unlocked, and the length of lock stage clip also need not change the flexibility when having guaranteed to unblank.

View when accompanying drawing 1 is not unlocked for the safety cylinder lock;

Accompanying drawing 2 is met the view when unblanking such as master key for the safety cylinder lock.

Further specify the utility model patent according to figure now.

(1) core in the accompanying drawing, (2) lock tube, (3) stage clip, (4) outside pellet shot from a slingshot, (5) apertura lateralis, (6) inboard pellet shot from a slingshot, (7) locking bolt side opening, (8) locking bolt endoporus, pillar in the mouth at the bottom of (9) stage clip, (10) spring.

Fig. 1, pillar (10) can be fixed on the outside pellet shot from a slingshot (4) in the spring of intrinsic safety full lock, or is fixed at the bottom of the stage clip on the mouth (9), and pillar (10) places in the stage clip (3) in the spring, and its diameter is slightly less than the internal diameter of stage clip (3), makes stage clip (3) retractable.The length of pillar (10) can be chosen in the length range below in the spring: deduct locking bolt endoporus (8) length smaller or equal to the axial length of stage clip (3) in lock apertura lateralis (5); Deduct the length of locking bolt side opening (7) and locking bolt endoporus (8) greater than the axial length of stage clip in lock apertura lateralis (5).

On making, can all adopt pillar in the spring (10), also can partly adopt, at least to have in a word and be provided with pillar (10) in the spring in one group of stage clip (3), because the length of pillar (10) deducts locking bolt endoporus (8) length smaller or equal to the axial length of stage clip (3) in lock apertura lateralis (5) in the spring, so when unblanking, lock inboard pellet shot from a slingshot (7), can easily be supported out locking bolt endoporus (8) with this lock key, enter lockset position of coupler smoothly, and will lock unlatching.

Fig. 2, when unblanking with master key or lockaid gun, because pillar (10) length deducts the length of locking bolt side opening (7) and locking bolt endoporus (8) in the spring greater than the axial length of stage clip (3) in lock apertura lateralis (5), so inboard pellet shot from a slingshot (6) can all not supported out locking bolt side opening (7), core (1) can't rotate, and lock can not be unlocked.

For above-mentioned reasons, the door lock that makes of the cylinder lock of this patent, padlock, lock etc. are safe.

Claims (1)

1, a kind of safe spring lock, it is characterized in that: by core (1), lock tube (2), stage clip (3), outside pellet shot from a slingshot (4), inboard pellet shot from a slingshot (6), pillar formations such as (10) in the spring, its principal character be in lock body all or have at least pillar in the spring (10) is set in one group of stage clip, pillar (10) diameter is less than the internal diameter of stage clip (3) in the spring, be arranged in the stage clip (3), choose in the length scope below: deduct lock endoporus (8) length smaller or equal to the axial length of stage clip (3) in lock apertura lateralis (5); Deduct locking bolt endoporus (8) length and locking bolt side opening (7) length greater than the axial length of stage clip in the lock apertura lateralis.

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