CN201228471Y

CN201228471Y - Lock and key

Info

Publication number: CN201228471Y
Application number: CNU2008201170315U
Authority: CN
Inventors: 吴承望
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-06-11
Filing date: 2008-06-11
Publication date: 2009-04-29
Anticipated expiration: 2018-06-11

Abstract

The utility model discloses a lock and a key. Scraggy serrate bars are arranged inside the lock core hole on the side without pins; a row of holes is arranged in the middle of the key, key pins with larger upper parts and smaller lower parts are arranged inside the holes, and a key spring is arranged on the smaller lower part of each key pin to allow the pin to conduct contraction movement. In the case of out of use, the spring pins are orderly arranged by facing the large upper parts thereof outside. A lawless person can not acquire the accurate shape information of the key in the case of unlocking the lock, so as not to copy out the key from the shape of the key, thereby improving the safety factor of the lock.

Description

A kind of lock and key

Affiliated technical field

The utility model belongs to lock technology field.

Background technology

Present common spring padlock, pin tumbler lock, its key is that an appearance is changeless, if opened up the pattern of next key accidentally by the people, just can be according to the type shape of pattern, with the key billet of same specification, file is made the key that can open this lock and is come, and the stolen of property will be taken place.

Summary of the invention

The purpose of this utility model is to provide a kind of and can not copies out the lockset that can open the lock that is complementary with it from this key in shape.

For reaching above-mentioned purpose, technical measures of the present utility model are: its lock has pellet shot from a slingshot, and structural principle is identical with common lockset on one side, on non-marble lock core hole face on one side scraggly dentation bar is arranged; In the middle of the key round is arranged, up big and down small key pins is arranged in the hole, key pins microcephaly has the key spring, makes pellet shot from a slingshot can carry out contraction movement.

Adopt such structure, when not using, the key pins major part outwardly, proper alignment; Do not know the interior shape of lock core, also just can't know the accurate shape of the key in the time of opening lock, the stranger can't copy the key that can open this lock and come on the profile of key at all.During use, key is injected lockhole, and the scraggly dentation bar of lock core hole face is with the big end in contact of key pins, promote key pins, the key pins small end is exposed, form the scraggly tooth bar of key another side, the pellet shot from a slingshot of key injustice, promote lock core marble, make the contact surface of lock core marble and lock spring, just on the rotation interface of lock core and lock body, thereby a lock is opened.

Description of drawings

Accompanying drawing is a sectional view of the present utility model.

Specific embodiment

Lock as shown in the figure and key, by lock body 1, lock core 2 and key 3 are formed, and non-marble has scraggly dentation bar 4 on one side in the lock core hole; There is a round 5 centre of key 3, and up big and down small key pins 6 is arranged in the hole 5, and the microcephaly of key pins 6 has key spring 7, and key pins 6 is moved up and down.Time spent not, key pins 6 major parts outwardly, proper alignment, the key bit ordered state when not knowing that key 3 is opened, other people can't copy the key that can open this lock from profile at all and come.During use, key 3 is injected lockhole, the big end in contact of scraggly dentation bar 4 and key pins 6, compression key spring 7, the small end of key pins 6 is exposed, form the scraggly unlatching tooth bar of another side of key 3, the small end of the key pins 6 that exposes promotes lock core marble 8, the contact surface that makes lock core marble 8 and lock body 9 just on the rotation interface of lock core 2 and lock body 1, has just been opened this lock.

Claims

1. lock and key for one kind, form, it is characterized in that: on one side non-marble has scraggly dentation bar in the lock core hole by lock body, lock core and key; In the middle of the key round is arranged, up big and down small key pins is arranged in the hole, key pins microcephaly is with the key spring.