CN2124973U

CN2124973U - Electronic puzzle lock

Info

Publication number: CN2124973U
Application number: CN 92206450
Authority: CN
Inventors: 何宗平
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-04-06
Filing date: 1992-04-06
Publication date: 1992-12-16

Abstract

The utility model discloses an electronic puzzle lock, comprising a key (1), a code disc (2), a comparator (3), a first input end (4), a second input end (5), and a power supply (6). The first input end provides a first one dimensional coding input; the second input end can realize the two dimensional coding through the code disc and can detect the electric potential of the corresponding electrode unit on the key which is inserted in the lock body, and the electric potential is compared with the input of the first input end through the comparator; if the electric potential is the same with the input of the first input end, the comparator can send out the unlocking signal. The second input ends of the different locks can detect the electric potentials of the different electrode units of the same key after the code disc encodes, and a plurality of locks can use the same key. The electronic puzzle lock can be widely used in every lock using situation.

Description

Electronic puzzle lock

The utility model relates to a kind of coded electronic lock.

Lock in the market almost is common mechanical lock entirely, reliability is not high, though some coded lock has certain confidentiality, but the user will remember password, very inconvenient, the existing mechanical lock needs every lock to have a key made to fit the lock in addition, and it is very inconvenient to carry, once key loss, the reprovision key, more renew lock,, often need carry the key of bunchiness especially for staff such as some warehouses, hotels, when unblanking, also need seek corresponding key, cumbersome, to produce the lock of various different key flute profiles in addition in locksmithery, production efficiency is low.

The purpose of this utility model just provides a kind of coded electronic lock, and it had both had the confidentiality and the reliability of height, again can many public same the keys of lock.

The coded electronic lock that the utility model provides is characterised in that: have first, the digital comparator of second input and an output, each input all has the input of n position, above-mentioned first input end provides one-dimensional coding input for the first time, above-mentioned second input is realized for the second time two-dimensional encoded by a code-disc, code-disc is placed in the code-disc groove of lock body, the n of second input input electrode can realize Two dimensional Distribution in the above, and keep Elastic Contact with the respective electrode unit that inserts in the lock body on the key, electrode unit on the key is distributed on the two-dimentional dielectric base, main electrode on the key links to each other, needs according to twice coding can be with the cut-out that is electrically connected of certain electrode unit and main electrode, when inserting lock body, key makes the power connection of system, the electrode unit that links to each other with main electrode all is in high level, and be not in high level with electrode unit that main electrode is not electrically connected, therefore n the electrode that is distributed in second input on the code-disc will detect the current potential of respective electrode unit on the key, and send into digital comparator and compare with the coding input of first input end, if the input of two inputs is identical, digital comparator output control signal can be opened lock.Because n input of second input is to detect the current potential of respective electrode on the key, carry out two-dimensional encoded by code-disc to n input of second input, it is same as the current potential of different electrode units on the key to make n of its second input of different locks input detect, thereby realize many public same the keys of lock, in the secondary coding process, need only once coding difference, then the unlocking cipher of every lock is all inequality, although thereby many lock public same keys, be incoherent mutually between each lock.

The coded electronic lock that the utility model provides, factory only needs the lock ﹠ key of a large amount of production standards, and the password of unblanking can because it has two-dimensional encoded characteristic, can be realized many public keys of lock by the own layout of user.Because it has the secondary coding characteristic, its confidentiality and reliability are all far above common mechanical lock and coded lock, once key loss as long as the coding that change is in time locked can continue to use this lock, needn't more renew lock because of worrying safety.In confidentiality and the high occasion of reliability requirement to lock, as confidential departments such as bank, public security, except making twice coding more the complexity, can also form chain lock to the coded electronic lock with many, promptly only on the basis that last lock opened, just can open a back lock, thereby make lock more safe and reliable.This lock circuit is made improvements slightly, can make that it sends alarm signal when the key of unreserved seating sign indicating number inserts.

The performance of manually unblanking of the present utility model is elaborated with reference to the following drawings by an example now:

Fig. 1 is an electrode unit distribution map on the key.

Fig. 2 is the code-disc structural representation.

Fig. 3 is a manual unlocking mechanism schematic diagram of the present utility model.

Fig. 4 is circuit theory diagrams of the present utility model.

Fig. 5 is the structural representation of anti-copy key.

Be distributed with 4 * 8 array electrode on the key (1), each electrode unit a links to each other with main electrode c by line b, the line b of certain electrode unit with main electrode can be cut off according to the coding needs, make this electrode unit not have electric connection with main electrode;

Code-disc (2) is made up of electrode guide strip A and clamping plate B, one 4 * 8 hole array is arranged on the guide strip A, and the elastic electrode that links to each other with second input can insert in these holes, also has a pair of disjunct electrical contact (8) on it, one connects positive source, the high level input of a welding system circuit.

Revolving body (7) is placed in the sleeve (9), and a finger is equipped with in its end, can rotate with revolving body, and dial (10) revolution that drives when finger rotates in the lock box just can make lock open.There are two grooves revolving body (7) inside, one is key (1) slot, settled code-disc (2) in another groove, key (1) is not when inserting key, a pair of electrical contact on the code-disc (2) does not still link to each other, power supply (6) and circuit system access failure, and electromagnet (12) is failure to actuate, backing pin (11) is inserted in the sulculus on the dial (10), and dial (10) can not be turned round; Insert key (1), its main electrode c goes up a pair of electrical contact (8) with code-disc (2) and links to each other, power supply (6) is connected with circuit system, and key (1) is gone up the electrode unit that links to each other with main electrode c and also is in high level, whether electromagnet this moment (12) moves the input of depending on (3) two inputs of comparison circuit, if adopt 8 bit digital comparison circuits, then each input has 8 inputs respectively, 8 input states of first input end (4) are by coding is definite for the first time, if its 1.3.5.7 input is connected on high level, the 2.4.6.8 input is connected on low level, what note was connected to high level is input as 1, be connected to and low levelly be input as 0, then the coding of first input end (4) the 1st～8 input can be written as 10101010,8 inputs for second input (5), it can be distributed in code-disc (2) and go up any 8 positions, fixed its of this official holiday is distributed in (1.1) (2.1) (2.2) (1.3) (1.4) (2.5) (3.6) (1.8) and locates, then the user must go up key (1) electrode unit corresponding with the 2.4.6.8 input and the line cut-out of main electrode, should link to each other with main electrode c and import corresponding electrode unit with 1.3.5.7, because 8 inputs of second input (5) are respectively by the resistance eutral grounding about a 1K, thereby after key (1) insertion, 8 inputs of second input (5) can be written as 10101010, the same with 8 inputs of first input end (4), comparison circuit (3) output high level, control electromagnet (12) action, to insert backing pin (11) sucking-off in the dial (10), turn key (1) and can make revolving body (7), lock is opened together with dial (10) rotation together.If 8 inputs of second input (5) are different with 8 inputs of first input end (4), comparison circuit (3) output low level then, electromagnet (12) is failure to actuate, and backing pin (11) still is inserted in the sulculus of dial (10), and lock can not be opened.Because key (1) and code-disc (2) are 4 * 8 array distribution, so can open many locks with a key; If there is second lock, if the input coding of its first input end (4) is 10101000, the 1st～8 input electrode of its second input (5) can be inserted in code-disc (2) respectively upward locates (1.1) (2.1) (2.2) (1.3) (1.4) (2.5) (1.7) (1.8), it is different only to make its 7th input and the first lock the 7th input position of second input (5), only need this moment again will be on the key to cut off with the electrode connecting line b of the 7th input (1.7) corresponding position of second lock second input (5), then the signal level that detects on the key of second input will be 10101000, with the coding incoming level one of first input end to, thereby this key can be opened second lock.In like manner as can be known, also can open more lock with this key.If coded electronic lock adopts n bit digital comparison circuit, and its code-disc and key be m * 1 array distribution, and then the repetition rate of coding of this coded electronic lock is 2 ⁿ* (m * 1)! / ［ (m * 1)-n ］! * n! , be 2.69 * 10 for its repetition rate of coding of this example ⁹, and n, m, 1 are big more, and the confidentiality of lock is high more, and the openable lock of key is many more.If make system power supply (6) with dry cell and since only when key (1) inserts key the power supply of system just connect, not power consumption at ordinary times is so can make the lock work a very long time after changing one-shot battery.

Code-disc (2) is mainly used to n input of second input (5) carried out two-dimensional encoded, and it can have multiple structure.

Anti-copy key shown in the accompanying drawing 5 is placed on the line b of main electrode c and electrode unit a between key body (13) and the clamping plate (14), when determined being connected of main electrode c and electrode unit a according to the coding needs after, clamping plate (14) and key body (13) are pasted together, thereby have played anti-effect of duplicating.

The output of coded electronic lock also can be used for controlling the electronic machinery of unblanking, and realizes electronic unblanking.

Claims

A kind of coded electronic lock, it is characterized in that: have first input end (4), the digital comparator (3) of second input (5) and an output, each input all has the input of n position, provide one-dimensional coding input for the first time at above-mentioned first input end (4), above-mentioned second input (5) is realized for the second time two-dimensional encoded by a code-disc (2), code-disc (2) is placed in the code-disc groove of lock body, n input electrode of second input (5) can go up at code-disc (2) and realize Two dimensional Distribution, and with insert in the lock body key (1) and go up the corresponding electrode unit and keep Elastic Contact, electrode unit on the key (1) is distributed on the two-dimentional dielectric base, link to each other with the main electrode on the key (1), needs according to twice coding can be with the cut-out that is electrically connected of certain electrode unit and main electrode, the power supply (6) of system is connected, the electrode unit that links to each other with main electrode all is in high level, and be not in high level with electrode unit that main electrode is not electrically connected, therefore n the input electrode that is distributed in last second input of code-disc (2) (5) will detect the current potential that key (1) is gone up the respective electrode unit, and send into digital comparator (3) and compare with the coding input of first input end (4), if the input of two inputs is identical, then digital comparator (3) output control signal can be opened lock.