CN203487886U - Lock with main key and auxiliary key - Google Patents

Abstract

The utility model discloses a theft-proof door lock with a main key and an auxiliary key. The door lock with the main key and the auxiliary key is obtained in the way that an auxiliary marble set, an auxiliary marble spring (13), a sliding key cylinder (20), an auxiliary key hole (23), the auxiliary key (11) and a sliding key cylinder spring (18) are additionally arranged based on an original single-row marble set, as a result, the unlocking difficulty of the lock is increased, and the safety performance of the lock is improved.

Description

Major-minor Lock opened with two keys

Technical field

The utility model relate to a kind of at right angle setting door theftproof lock, its do not have will to open under the prerequisite of secondary key very difficult.

Background technology

At present, many to be latched in safety factor not high, and its shortcoming is that lock core marble is disguised poor, and there is certain Modulatory character upper pellet and the linable position of lower pellet group, when there is no key, also can not open, and this has just reduced the security performance of these locks.

Summary of the invention

The utility model solves its technology and asks that putting forward adopted technical scheme is: the lock at existing single key lock installs a set of secondary key apparatus with it additional, in device: secondary key, secondary keyhole, secondary keyhole angle upper hopper chute slip lock core chute, slip lock core, slip lock core keyhole, slip lock core spring, auxiliary marble hole, pellet in pair, secondary lower pellet, secondary lower pellet bolt, secondary marble spring, secondary pellet bolt chute, secondary keyhole angle gliding groove, in this device a peculiar slip lock core it by the secondary pellet group of the inside and outside almost every sky, secondary pellet group is pushed and lower main lock core is blocked at secondary marble spring, pellet group under pellet group in pair and pair to be drawn and allowed together main lock core rotation only have with secondary key, so be difficult to outside pellet under pair is inside drawn neat and allow master key that lock is opened across slip lock core, for the lock of security door because being that the straight pellet group of installing of hammer is directly telemechanical up and down of hammer, so marble hole is interior without mounting spring in pair.

Beneficial effect

One, the theftproof of lock is greatly improved.Two, simple in structure, easy to use.Three, with low cost, be easy to promote .

Accompanying drawing explanation

Fig. 1 is the three-dimensional schematic illustration of the side imageization of a kind of novel anti-theft major-minor of the utility model Lock opened with two keys embodiment, in accompanying drawing.Wherein part is:

Master key (1), lock body (2), lock core (3), main lower pellet (4), Your Majesty's pellet (5), main marble spring (6), main marble hole (7), master key hole (8), locking bolt (9), secondary keyhole angle gliding groove (10), secondary key (11), auxiliary marble hole (12), secondary marble spring (13), secondary lower pellet bolt (14), pellet in pair (15)), secondary lower pellet (16), secondary pellet bolt chute (17), slip lock core spring (18), slip lock core keyhole (19), slip lock core (20), slip lock core chute (21), secondary keyhole angle upper hopper chute (22), secondary keyhole (23).

the specific embodiment

Below in conjunction with accompanying drawing, the present invention is described in further detail:

The secondary key (11) of the door lock of major-minor Lock opened with two keys inserts the oblique sliding slip lock core keyhole (23) that inserts of secondary keyhole (12) secondary key (11) under the guiding of secondary keyhole angle upper hopper chute (22) and secondary keyhole angle gliding groove (10) slip lock core (20) is pushed slide to lock core spring (18) on one side, secondary key (11) hook the pellet bolt of secondary lower pellet group pellet group under pair is all moved to main lock core and lock body contact position, and at this moment master key inserts keyhole and just can open lock.

Claims (1)

1. an antitheft major-minor Lock opened with two keys, it is for the secondary key apparatus of locking of security door, it is characterized in that, on the basis of existing single key lock, at lock, increased a set of secondary key apparatus with it, comprise: secondary key hole deviation mouth gliding groove (10), secondary key (11), auxiliary marble hole (12), secondary marble spring (13), secondary lower pellet bolt (14), pellet in pair (15)), secondary lower pellet (16), secondary pellet bolt chute (17), slip lock core spring (18), slip lock core keyhole (19), slip lock core (20), slip lock core chute (21), secondary keyhole angle upper hopper chute (22), secondary keyhole (23), described slip lock core secondary pellet group and outside every sky, described secondary marble spring makes secondary pellet group strengthen the rotation that prevents of main lock core.