CN2091916U

CN2091916U - Cylinder lock for door with double safety means

Info

Publication number: CN2091916U
Application number: CN 91205838
Authority: CN
Inventors: 赵树华
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-04-09
Filing date: 1991-04-09
Publication date: 1992-01-01

Abstract

The utility model relates to a lock, in particular to a dual safety cylinder lock for a door, mainly solving the disadvantage that an existing cylinder lock has poor safety property, complicated structure, etc. The utility model has the technical proposal that a lock core is a dual lock core comprising an inner lock core and an outer lock core; the outer lock core is firstly unlocked through a key, and then the inner lock core is unlocked; the inner lock core is threaded through a gear rack, and the gear rack drives a lock tongue to lock or unlock a lock. The utility model has simple structure and good safety property, and is suitable for various doors, file cabinets, and safes.

Description

Cylinder lock for door with double safety means

The utility model relates to a kind of lock, particularly a kind of dual fail-safe pin tumbler lock.

The various pin tumbler lockes that prior art is used, though kind is more, the technical scheme of employing is also had nothing in common with each other, the ubiquity safety is poor, or complex structure, perhaps can only solve simple functions such as pick-proof, anti-drilling, warning.

The purpose of this utility model is, designs a kind of simple in structurely, easy to use, and the novel insurance pin tumbler lock that safety performance is good is to overcome the deficiencies in the prior art.

The purpose of this utility model is to realize like this, the two-core that core in lock body is made up of outer lock core and inner lock core, dead bolt connects with tooth bar, gears engaged on tooth bar and the inner lock core, two core central key holes are "+" or " ┬ " font, and two keyhole phase differences are 90 ° or 180 °.

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

Accompanying drawing 1 is the utility model schematic diagram.

Accompanying drawing 2 is the sectional view of accompanying drawing 1.

Referring to accompanying drawing, key inserts the central key hole from outer lock core 1, open outer lock core 1, with 90 ° of key turns or 180 °, at this moment outer lock core 1 and inner lock core 2 central key holes overlap fully, at this moment key can insert inner lock core 2 central key holes, inner lock core 2 is opened, be rotated further key, in lock body 13, inner lock core 2 can rotate by driven gear 3, gear 3 drives tooth bar 5, dead bolt 4 is moved, realize lock open or locked, be intensity and the increase safety that increases key, key and keyhole are made "+" or " ┬ " font, and to differ the position be 90 ° or 180 ° outer lock core 1 and inner lock core 2 central key holes, have only during use outer lock core 1 opened rotation after, key could insert core 2, lock is opened, because dead bolt 4 is by tooth bar 5, with the intensity of gear 3 engagements having increased dead bolt 4, the pellet shot from a slingshot 14 on core 1 and the inner lock core 2 can be provided with arbitrarily in "+" or " ┬ " word direction in addition, can same direction setting, also can be provided with simultaneously, reduce the repetitive rate of key, increase safety at both direction.

The utility model also can increase other locking device, as file cabinet, the lockset that uses on the safety cabinet, need to increase by handle 17, rotating disk 15, lower plunger 16 in the control, rotating disk 15 locked or to open be to drive cam 6 by outer lock core 1, drag link 7, pull bar slide block 8, fork 9, check lock lever slide block 10, make check lock lever 11 leave rotating disk 15 and open rotating disk, perhaps insert in the breach on the rotating disk 15 rotating disk 15 is stuck, for drag link 7 is contacted with cam 6 all the time, on drag link 7, be provided with spring 12, the purpose of fork 9 is the positions that increase the stroke of check lock lever 11 or change check lock lever 11, the utility model also can be with pull bar slide block 8, fork 9, locking slide block 10 saves directly by drag link 7 as check lock lever.

The utlity model has simple in structurely, safety is good, and cost is low, and is easy to use, can be widely used on various doors, file cabinet and the safety cabinet to use.

Claims

1, a kind of dual fail-safe pin tumbler lock is made up of lock body, core, dead bolt etc., it is characterized in that:

A, described core are made up of outer lock core 1 and inner lock core 2, and inner lock core 2 one ends are provided with gear 3,

B, described dead bolt 4 in lock body 13 and the tooth bar that is meshed with gear 35 connect,

C, described outer lock core 1 and inner lock core 2 central key holes are all "+" or " T " font, and 90 ° or 180 ° of outer lock core 1 and inner lock core 2 central key hole phase differences.

2, pin tumbler lock according to claim 1 is characterized in that described outer lock core 1 one ends also can be provided with cam 6, cam contour and drag link 7 one end in contact, and drag link 7 is through pull bar slide block 8.Fork 9 check lock lever slide blocks 10 connect with check lock lever 11.

3,, it is characterized in that the pellet shot from a slingshot group 14 on described outer lock core 1 and the inner lock core 2 can be provided with arbitrarily in "+" or " ┬ " word direction according to claim 1 and 2 described pin tumbler lockes.

4, pin tumbler lock according to claim 2 is characterized in that described drag link 7 and check lock lever 11 can be same bars.