CN2209189Y - Combined lock - Google Patents

Abstract

The utility model discloses a mother-son lock. Teeth on the mother key are more than the quantity of cylinder holes on a lock body. The positions of cylinder holes are limited according to the arrangement and the assemblage of the teeth on the mother key; the length of each cylinder is limited according to the size of the teeth on the mother key; a son key is made out according to the positions of the cylinder holes on each lock or the tooth shape of the mother key. Accordingly, the mother key can open a complete set lock, and the son key can only open the corresponding lock. The lock is suitable for the institution, such as a hotel, a school, an apartment, etc.; the use is convenient, and the management is convenient. The utility model also has the characteristics of simple processing technology and low cost.

Description

Combined lock

The utility model belongs to a kind of lockset.

In daily life, particularly in the hotel, unit such as school, apartment, all exist a key management problem.All inequality because of the key in each room, to cause administrative staff must hold many different keys and go to unblank, the time of so promptly having wasted is not easy to management again.No. the 7th, Chinese patent 91224301.5(patent gazette the 9th volume) a kind of " multifunctional ligand shell type cylinder of spring lock " disclosed, it will increase cover core and one deck pellet shot from a slingshot of a cylinder between the outer core of original lock core and the inner core, form two cover stop sign indicating numbers of lock core by the permutation and combination of three layers of pellet shot from a slingshot, corresponding every lock core all is equipped with the key operated of two kinds of different passwords, wherein public key can be shared in supporting whole lock cores, private key can only be opened a corresponding lock core, the cylinder lock made from this lock core, can open a complete set of lock to public key with one, also can use jointly by two kinds of keys.This being locked in increased by row's pellet shot from a slingshot and difficulty of processing increased in the manufacture process, cost improves.

The purpose of this utility model provides a kind of primary and secondary lock, and its mother key can be opened a complete set of lock, and sub-key can only be opened a corresponding lock, compares with common lock, and processing technology is similar, and does not increase cost of production.

The purpose of this utility model is achieved in that the number of the number of tooth on the mother key 5 of primary and secondary lock more than pellet shot from a slingshot hole 7 in the lock core, the permutation and combination of different teeth forms a series of combination teeth, the position in pellet shot from a slingshot hole 7 is set according to each group combination tooth profile of tooth on the mother key 5 on the primary and secondary lock lock core, like this, each group combination tooth on the mother key 5 just can flick corresponding pellet shot from a slingshot 4 and open a lock, and many group combinations can flick all pellets shot from a slingshot and open a whole set of lock; And then the position in the pellet shot from a slingshot hole 7 of locking according to every handle prepares corresponding sub-key 6, can realize that sub-key 6 makes a corresponding lock, and mother key 5 opened the purpose of a whole set of lock.

Below in conjunction with embodiment and accompanying drawing the utility model is further described.

Figure one is primary and secondary lock lock body and mother key structural representation.

Figure two is structural representations of sub-key.

Among the figure: 1, positioning boss, 2, lock core, 3, spring, 4, pellet shot from a slingshot, 5, mother key, 6, sub-key, 7, the pellet shot from a slingshot hole, 8, lock body.

Common cylinder lock generally is provided with five pellet shot from a slingshot holes, and the key of five teeth can only be opened a corresponding lock.In the manufacture process of primary and secondary lock, design the profile of tooth of mother key 5 earlier, the number of tooth is more than the number of locking pellet shot from a slingshot hole 7 on the mother key 5, as five pellet shot from a slingshot holes 7 have been locked, then has the tooth more than six on the mother key 5 at least, when mother key 5 is designed to seven teeth, just can change the position in pellet shot from a slingshot hole 7 when making lock according to the position of seven teeth, the position in the position in the corresponding a kind of pellet shot from a slingshot of the first five tooth hole or the corresponding another kind of pellet shot from a slingshot of back five teeth hole for example ... permutation and combination can be made into the lock that many handles are fit to mother key 6 like this, after mother key 5 inserts lock core 2, always have corresponding five the pellet shot from a slingshot holes of five teeth and the pellet shot from a slingshot 4 that plays a part pin in connection lock core 2 and the lock body 8 is withdrawed from from lock core 2, enter fully in the lock body 8, and the contact surface of two pellets shot from a slingshot 4 up and down in pellet shot from a slingshot hole 7 is just in time overlapped with the boundary of lock body 8 and lock core 2, lock core 2 just can rotate in lock body 8 like this, and rotational lock core 2 can be opened lock again.The position that 6 of sub-keys are locked pellet shot from a slingshot hole 7 according to every handle has been made into five teeth, can only open a corresponding lock.

Primary and secondary lock provided by the utility model because its female lock is can open a whole set of lock and sub-key can only be opened a corresponding lock, uses in the apartment, the units such as hotel, school, have easy to use, characteristics of being convenient to manage, and production technology is simple, cost is low.

Claims (2)

1, a kind of primary and secondary lock comprises lock body, mother key, sub-key, it is characterized in that: the number of tooth is more than the number in pellet shot from a slingshot hole on the lock core in the lock body on the mother key, and the position in pellet shot from a slingshot hole is set according to the permutation and combination of the tooth on the mother key on the lock core.

2, primary and secondary lock according to claim 1 is characterized in that: sub-key determines that according to the position in pellet shot from a slingshot hole the number of the tooth of sub-key is identical with the number in pellet shot from a slingshot hole.

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