CN2318342Y

CN2318342Y - Lock with I-shaped step flat ball and key with changable teeth

Info

Publication number: CN2318342Y
Application number: CN 97251395
Authority: CN
Inventors: 陈汉长
Original assignee: CHEN HAUCHANG
Current assignee: CHEN HAUCHANG
Priority date: 1997-12-31
Filing date: 1997-12-31
Publication date: 1999-05-12
Anticipated expiration: 2007-12-31

Abstract

The utility model relates to an I-shaped flat ball password key and lock. A flat ball with an I-shaped flat ball is adopted in a lock head, which can effectively prevent technical locking. In order to prevent the copying of the key, the method of the combination of fixed teeth and changeable teeth is adopted, or only the changeable teeth are used for making the key, and the key becomes a new key having the function of a password lock. When the key is not used for locking, the copying of the key can be effectively prevented through artificially shifting a changeable gear, even if the key is lost or is stolen by others, the lock can not be unlocked if a person carrying the key does not know the password of the gear. The utility model successfully overcome the defects of the existing spring lock.

Description

I-shaped flat pearl cipher key lock

The utility model relates to the parts transformation of all kinds of hoodle ball lock heads and the technological transformation of key.

Lock is a kind of general security personnel's instrument, its type is also very various, be still the spring type mechanical anti-theft lock but use the most generally now, such lock not only type is wide, various in style, and present spring type mechanical lock has increased the sense of security for people's life, working and learning through continuous development with improve and had well anti-drilling, anti-saw, pick-proof, protecting against shock performance.But present spring type mechanical anti-theft lock still has 2 deficiencies: the anti-technical opening function of the first is poor, and it two is that key is duplicated by the people easily.So-called anti-technical opening is meant the clean working time of being opened lock by the professional with special tool.The standard of state ministry of public security (GA/T73-94) regulation, A level lock is 1 minute, B level lock is just to be qualified lock in 5 minutes, and Duan time is too short for the stealer of having grasped the skilled unlocking secret of success really like this, yet owing to the structural property of present cylinder lock can only be made regulation like this.So far still do not have not by the cylinder lock of technical unlocking, this is unsafty really.For duplicating of key, well-known present key all has certain shape, though the key shape difference of each lock, but because fixed in shape, thus all can be by the clay die, scribe, or duplicate with original key, in case so key loss is stolen, its lockset just will lose its effect thereupon.These all are the things that people very worry at present, and therefore necessity of being improved arranged very much.

The purpose of this utility model is to provide a kind of new marble lock that can not be replicated by technical unlocking and key, and the part of only making tapered end and key is improved and just can be realized above-mentioned purpose.

According to implementer's case that the purpose of this utility model proposed be: change present employed cylindric flat pearl into I-shaped flat pearl at tapered end, so just, can prevent the technical unlocking lock effectively, become band to become the code type key of tooth key design again simultaneously, just can prevent duplicating of key effectively again.

The utility model will be further described below in conjunction with accompanying drawing:

Fig. 1 is the mated condition figure that the utility model tapered end and band become teeth key;

Fig. 2 is the I-shaped flat pearl amplification assumption diagram of the utility model;

Fig. 3 is the view of the utility model I-shaped flat pearl when skilled unlocking;

Fig. 4 is the variable tooth code type of a utility model Key structure schematic diagram;

Fig. 5 is the pure change teeth key of a utility model constructional drawing.

From accompanying drawing as can be seen, the utility model comprises tapered end 1, and lock core 2 and key more than 8 parts is characterized in that, hoodle 5 on the tapered end 1 in the hoodle hole 4 is the I-shaped flat pearl of cylinder shape groove 6 in the middle part of being and having, and two 7 of

hoodle

5 and 22 is the equal diameter cylinder.Like this because of the diameter of groove 6 less than the hoodle bore dia in tapered end and the lock core, so the shell hole when tapered end and lock core when skilled unlocking misplaces, skilled unlocking is leaveed no choice but shell hole is misplaced, this moment, I-shaped flat pearl will be stuck because of the dislocation run-off the straight of shell hole, I-shaped flat pearl just can't be pushed up from the lower end, so just can prevent skilled unlocking effectively.

In order to prevent duplicating of key, the utility model also adopts the key of variable tooth, permanent tooth 9 is arranged on key 8 and become tooth 10 two parts, also can singly cancel permanent tooth 9 (as shown in Figure 4) with becoming tooth 10, it becomes tooth 10 and is made up of the one group of variable polygon or the circular gear teeth 11, on the gear teeth 11, have the groove 12 or the hole 20 and corresponding of the different depths with the hoodle in the lock core, the gear teeth 11 are embarked on journey by a gear teeth axle 13 polyphones and are listed as into a password shape side by side, one end of gear teeth axle 13 is stuck on the head 21 of key 8, the root of gear teeth axle then is stuck in the root 14 of key 8, on gear shaft 13 and a locking nut 15 arranged, locking nut 15 can be by the screw-threaded coupling gear teeth 11 on the gear teeth axle 13.As long as adjust gear teeth group in use, make it to adapt, just can unblank, when not unblanking at ordinary times, can arbitrarily gear teeth group not dialled unrest with the hoodle of lock core, even if key is lost or stolen by the people like this, take the people of key also can't unblank because of the built-up sequence of not knowing its gear teeth.

Accompanying drawing 4 has provided another embodiment, key has been cancelled fixed teeth in this scheme, key 8 is made up of one group of simple speed gear group 16, gear teeth group 16 is embarked on journey by mandrel 17 series connection, at gear teeth core assembly axle 17 heads, one taper 18 that is made of one with mandrel is arranged, and wheels 16 kinks are on mandrel 17 and fastening by the holding screw 19 that places the key handle position.

Novel pellet shot from a slingshot machinery anti-theft puzzle lock provided by the utility model has successfully solved anti-skilled unlocking, and the problem of duplicating of key, thereby the perfect performance of marble mechanical lock, improved the fail-safe of spring type lock, and made simply, improved easily.Be suitable for all adopting or only improving lockset, have the value of extensively promoting the use of with the flat pearl of two steps at all kinds of cylinder locks.

Claims

1, I-shaped flat pearl cipher key lock comprises tapered end 1, lock core 2 and key more than 8 parts, it is characterized in that; On the tapered end 1 in the hoodle hole 4 hoodles 5 be and have the middle part and be the I-shaped flat pearl of cylinder shape groove 6, and two 7 of hoodle 5 and 22 be the equal diameter cylinder, key 8 is made up of permanent tooth 9 and change tooth 10 two parts simultaneously.

2, cipher key lock as claimed in claim 1, the change tooth that it is characterized in that key 8 can change polygon by one group or the circular gear teeth 11 are formed, on the gear teeth 11, have the groove 9 of the different depths and corresponding with the hoodle in the lock core, the gear teeth 11 are embarked on journey by gear teeth axle 13 polyphones and are arranged into a password shape, one end of gear teeth axle 13 is stuck on the head 21 of key 8, the root of gear teeth axle then is stuck in the root 14 of key 8, on this external gear teeth axle 13 and a locking nut 15 arranged, locking nut 15 can be by the screw-threaded coupling gear teeth 11 on the gear teeth axle 13.

3, as claim 1 and 2 described cipher key locks, it is characterized in that, key 8 is made of speed gear tooth group 16 merely, its gear teeth group 16 is embarked on journey by mandrel 17 series connection, at the head of gear teeth mandrel 17 taper 18 that is made of one with mandrel is arranged, gear teeth group 16 kinks are on mandrel 17, and are and fastening by the holding screw 19 that places the key handle position.