CN2209709Y

CN2209709Y - Combined lock core

Info

Publication number: CN2209709Y
Application number: CN 95201285
Authority: CN
Inventors: 唐林坤
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-01-25
Filing date: 1995-01-25
Publication date: 1995-10-11
Anticipated expiration: 2005-01-25

Abstract

The utility model relates to a combined lock core, which belongs to the technical field of hardware. The lock core alters the traditional condition that a key can only unlock a lock, and the circular cylinder along the axial direction of the lock core is made into a circular cylinder with different diameters. The large and the small circular cylinders are bored with a plurality of holes with different diameters. At the time of unlocking a large lock, the key is completely inserted into the lock. At the time of unlocking a small lock, one the front part of the key is inserted into the lock. Consequently, the purpose of one key unlocking a plurality of locks is achieved.

Description

Combined lock core

The utility model relates to a kind of compound a chain of lock core, belongs to the hardware technical field.

The various metal latch of existing use, type is numerous and jumbled various.Every lock just has a key, and common people have been many keys at one's side.Bring inconvenience to daily life, especially in summer, people's thin one big string key of wearing the clothes often can be put at one's side nowhere.Develop many key chains, key case for solving the key-placing problem on the market, but still can't solve many these difficult problems of key.

The purpose of this utility model is to design a kind of compound a chain of lock core, and this a chain of lock core can make in family or the office several locks only just can meet the demands with a key.

The utility model is the lock core according to the quantity design equal number of required lock, during a lock, lock core is the cylinder of same diameter, many when lock lock core be have a plurality of diameters the cylinder lock core on same axis for having the cylinder of one or more steps, lock core diameter changes from small to big, its diameter variation quantity is identical with the quantity of same lock set, and the number of steps of different its lock cores of lock is inequality in the same lock set.Identical with common lock is the hole that is drilled with several different-diameters on the lock core, and spring and lock pin are housed in the hole.

The utility model has the advantages that: a key can be driven several locks.The staff of working, a home-use key, office is with a key, the user is easy to carry, also reduce owing to the corresponding key that repeats within the specific limits of key in addition, thereby the corresponding raising of safety factor, also saved a large amount of key materials simultaneously for country.

Fig. 1, the structural representation of big lock with lock set of compound a chain of lock core

Fig. 2, the structural representation of little lock with lock set of compound a chain of lock core

The utility model is further described with embodiment below in conjunction with accompanying drawing:

Driving two locks with a key is example, and the lock set with compound a chain of lock core of the utility model design is two kinds of lock cores, little lock core 4 promptly not with the level, as shown in Figure 2, with the compound big lock core 3 of a step, as shown in Figure 1.Be drilled with the hole of array different-diameter on the lock core, the same spring 1 and the lock pin 2 of in lock core hole, being equipped with common lock.The same with common lock when unblanking as long as a key inserts.The part that key only inserts the front when using little lock gets final product, and key all inserts when driving big lock.

General step of lock core gets final product, and lock core can be made several steps as required.

Claims

1, a kind of compound a chain of lock core is made up of spring (1), lock pin (2) and lock core cylinder, on lock core, be drilled with the hole of several different-diameters, spring and lock pin are housed in the hole, it is characterized in that: lock core is the cylinder with one or more steps on same axis, lock core diameter changes from small to big, and the number of steps of different its lock cores of lock is inequality in the same lock set.