CN201802216U

CN201802216U - Dual control safe capable of being unlocked through key input password

Info

Publication number: CN201802216U
Application number: CN2010202952302U
Authority: CN
Inventors: 蔡海善
Original assignee: Ningbo Yongfa Group Co Ltd
Current assignee: Ningbo Yongfa Group Co Ltd
Priority date: 2010-08-13
Filing date: 2010-08-13
Publication date: 2011-04-20
Anticipated expiration: 2020-08-13

Abstract

The utility model relates to a dual control safe capable of being unlocked through a key input password. An unlocking key is provided with a key circuit, a conductive billiard and a mechanical billiard corresponding to a conductive contact and a mechanical contact of the unlocking key are arranged in a lock cylinder, a single-chip microcomputer chip and a memory are arranged in the safe, a triggering detection circuit is connected with an input end of the single-chip microcomputer chip, an output end of the single-chip microcomputer chip is respectively connected with an unlocking electromagnet component and a digital tube display, storage passwords corresponding to output passwords of the unlocking key and passwords of an integrated circuit (IC) card emergency key are stored in the memory, and the key circuit of the unlocking key is connected with the triggering detection circuit of the input end of the single-chip microcomputer chip to form an unlocking key input signal circuit. The dual control safe reserves the traditional unlocking way of the electronic safe and eliminates the emergency lock cylinder with high failure rate and large security risks. The key buttons and seven-segment digital tube are used instead of operating buttons and a liquid crystal display, thus the design concept of the safe lock is innovated, the production cost of the whole safe is reduced, and the safety factor of the electronic safe is increased.

Description

The two control safety cabinets of key input password unlocking

Technical field

The utility model relates to a kind of safety cabinet lock, particularly a kind of electromechanical integration two control cipher key and lockset of unblanking with key input digit password and machinery.

Background technology

China upgraded about the standard GB 10409-2001 of theft proof strongbox so far in calendar year 2001, the lockset of electronic password lock safety cabinet does not have great change always, for a long time, adopt panel operation keyboard input password, display screen display operation code data, the cheap plum blossom key of use cost is as emergent unlocking device, become the standard configuration of each Electronic safe on the market now.

As shown in Figure 4, it is the cut-away view of the most salable small-sized safety cabinet coded lock on the market, comprise master control borad 37, LCDs 25, input button 26, core of emergency lock 41, core of emergency lock connecting rod 39, electromagnet assembly 33, electromagnet brace 40, main dead bolt trace 31, main lock core 38 etc., these parts are installed on the safe door.Main lock core 38 is turning-bolt lock cores, it connects tongue switching bar 32 by drive link 27, one headgear of tongue switching bar 32 is in the stopper slot 29 of dead bolt trace 31, main lock core 38 tongue switching bar 32 when rotating is done equidirectional motion in company with main lock core 38, also driven dead bolt gangbar 31 and done moving of horizontal direction, the dead bolt 28 that is fixed on the dead bolt trace 31 is moved horizontally.When the user normally unblanks at ordinary times, press the input button 26 of appointment earlier, receive button input and connection, after master control borad 37 receives instruction, point brightness liquid crystal display screen 25, the explicit user machine is normal, the user inputs password on key panel 26, master control borad 37 comparison input passwords and user are pre-stored in the password on the master chip, if the password unanimity, master control borad is connected solenoid circuit, and magnet exciting coil 36 flows through electric current, iron core 34 in the limit spring 35 is inhaled down, and the user can insert key 43 rotations and dead bolt 28 levels retreated open safety cabinet in the regular hour.

Core of emergency lock 41 is a kind of plum blossom lock cores, and the afterbody of core of emergency lock has been fixed an emergent lock connecting rod 39, the direction of motion unanimity of connecting rod 39 with core of emergency lock 41 of should meeting an urgent need when core of emergency lock rotates.Should emergent connecting rod 39 be positioned at electromagnet brace 40 directly over, when the emergency key 42 that is complementary inserts core of emergency lock 41 and rotates, emergent lock connecting rod 39 and then moves down, just depress electromagnet brace 40, dead bolt gangbar 31 can be moved to the direction of unblanking under the drive of main lock core 38, lock also can be unlocked, and this device mainly is the energency-unlocking of user when forgeing password.Using emergent unlocking device to come the opening safety case, plum blossom lock core and plum blossom key all are the very simple mechanical locks of structure, be very easy to be copied and utilize its technical opening safety cabinet by the unprincipled fellow, because the control line of electromagnet all is installed on the outer plastic cover plate of safety cabinet, the unprincipled fellow also can destroy plastic cover plate easily, and the switch of control electromagnet reaches the purpose of opening safety cabinet.CN101187272A proposes a kind of monolithic processor controlled mechanical-electronic puzzle lock, though it proposes be provided with on the key and corresponding password of single-chip microcomputer preset password and encryption memory, in the corresponding contact of lock core keyhole outer periphery, but can not be used for safety cabinet, particularly can not be used for emergent unlocking, its power supply and signal circuit complex structure, also inapplicable puzzle lock.

Summary of the invention

The utility model is at the existing defective of existing safety cabinet electronic password lock; design a kind of merges machinery and electronics is dynamo-electric pair of control integrated lockset and keys of one; can in same lock core, carry out normal or emergent unlocking; same key realizes that electronic cipher is imported and machinery is unblanked; refuse illegal key and password unlocking and report to the police, stop the possibility of technology unlocking.

The technical solution of the utility model is: the two control safety cabinets of key input password unlocking, comprise the Double control type lock core that is located in the safety cabinet, the control unlock circuit, electromagnet assembly and audible alarm circuit, and unblank key and the IC-card emergency key that are provided with conductive contact and mechanical contact, it is characterized in that unblanking being provided with on the key key circuit, be provided with conductive contact and corresponding conduction pellet shot from a slingshot of mechanical contact and mechanical billiard in the lock core with the described key of unblanking, be provided with singlechip chip and memory in the safety cabinet, be connected to the detection trigger circuit of singlechip chip input, the singlechip chip output connects unlock solenoid assembly and charactron display respectively, store memory has and described key output password and the corresponding storage password of IC-card emergency key password of unblanking, and the key circuit of the described key of unblanking connects the detection trigger circuit of singlechip chip input and forms the key input signal circuit of unblanking.

Compare with the existing market cabinet electronic password lock of insuring, the utility model has been cancelled the emergent unlocking lock core of original Electronic safe, normally unblank lock core and emergent unlocking lock core are united two into one, employing has the unblank key and the IC-card emergency key of key circuit, the user inserts key and can open safety cabinet with button input password under normal condition, when forgeing password, by starting the emergent unlocking program of master control borad, the user can use legal IC-card emergency key and the normal legal key of unblanking to come the opening safety cabinet by same lock core.The utility model has kept the traditional form that Electronic safe is unblanked, and has cancelled higher core of emergency lock, Password Operations button and the LCDs that has big potential safety hazard again of fault rate.Fundamentally reform the mentality of designing of safety cabinet lockset, not only reduced the cost of production of whole safety cabinet, and improved the safety factor of Electronic safe.

Description of drawings

Fig. 1 is lock core and matched key structure chart, and Fig. 1 a is the key of unblanking, and Fig. 1 b is the lock core sectional drawing.

Fig. 2 is circuit theory diagrams.

Fig. 3 is the Single-chip Controlling workflow diagram of unblanking.

Fig. 4 is primary electron lock safety cabinet structural perspective, and wherein Fig. 4 a is the lock body internal construction, and Fig. 4 b is the lock panel schematic diagram.

The specific embodiment

Referring to shown in Figure 1, the key handle 1 of unblanking is established key circuit 2 and is connected conductive contacts 3, establish in the lock core that conduction pellet shot from a slingshot 5 and key conductive contact are 3 corresponding, conduction pellet shot from a slingshot 5 is by isolator 8 insulation, the same with the key of unblanking, establish IC-card circuit and key conductive contact on the IC-card emergency key, the corresponding password of storage in the IC-card emergency key.It is corresponding with the key mechanical pellet shot from a slingshot hole 4 of unblanking to establish corresponding mechanical billiard 6 in the lock core lumen pore, conduction pellet shot from a slingshot 5 is connected to the input contact 13 of singlechip chip V1 by conductor wire 9, lock core rotating shaft one end in the lock core cavity 7 connects dead bolt 10, peripheral and the power supply minus earth metal lock body 11 of lock core, when key inserts, key contacts with the metal lock body, and the power supply negative pole connects key metallic object 12.

Referring to shown in Figure 2, the key circuit of establishing on the key handle 1 of unblanking 2 is made up of the button K1 and the K2 of resistance YR1, YR2 and series connection, and the end of button K1 and K2 is connected key metallic object 12.

The detection trigger circuit is made up of resistance R 1, R2, R3 and reverser V2A, V2B, V2C, a termination power Vcc of resistance R 1, R2, R3 series connection, and an end of resistance R 1 is connected the back by contact 13 and is connected with the P32 pin of singlechip chip with reverser V2A; Resistance R 1 is connected with reverser V2B with the contact 14 of R2 and then is connected with the P31 pin of singlechip chip; Resistance R 2 is connected with reverser V2C with the contact 15 of R3 and then is connected with the P30 pin of singlechip chip.Unblank after key inserts in the lock core cavity 7, the conductive contact 3 of unblanking on the key contacts with the contact 13 of the resistance R 1 of detection trigger circuit by lock core conduction pellet shot from a slingshot 5, imports the key signal of telecommunication of unblanking.The P35 pin of singlechip chip V1 and P34 pin connected storage V3 read unblank key and emergency key password that memory is preserved.Output termination charactron display V4, electromagnet assembly DCT and the warning circuit B1 of singlechip chip V1.Unlock circuit is made up of P17 pin, resistance R 12, the triode Q2 of singlechip chip V1, and electromagnet assembly DCT is connected between triode Q2 and the power Vcc.Warning circuit is made up of P37 pin, resistance R 11, triode Q1 and the sound equipment B1 of singlechip chip V1.V4 is that 7 hop count sign indicating numbers show, form by the R16～P10 pin of resistance R 4～R10 connection singlechip chip respectively, show " 0～9 " or "-", " || ", " H " symbol by single-chip microcomputer continuously according to the detection signal of input, display speed and conversion frequency are by the program software control of singlechip chip.

When unblanking key insertion lock core cavity 7, conductive contact 3 with connect 11 short circuits of negative pole lock core metal, contact 13 is a low level, output high level after oversampling circuit V2A is reverse, the P32 pin input high level of singlechip chip V1, resistance R 3, the dividing potential drop of R2 and R1 makes contact 14 voltages be lower than the threshold voltage of V2B, make V2B go out high level, the P31 pin of single-chip microcomputer is a high level, resistance R 3 and R2, the dividing potential drop of R1 makes contact 15 voltages be lower than the threshold voltage of V2C, make V2C go out high level, the P30 pin of single-chip microcomputer is a high level, this signal prompt single-chip microcomputer has key to insert, and wake single-chip microcomputer work up, unblank after key inserts, the resistance R 1 of detection trigger circuit, R2, the threshold voltage that the voltage division signal of the R3 and the key resistance YR1 that unblanks makes contact 13 voltages be lower than V2A makes V2A go out high level, the P32 pin of single-chip microcomputer is a high level,

contact

14 and 15 is higher than the threshold voltage of V2B and V2C respectively, make V2B and V2C go out low level, the P31 of single-chip microcomputer and P30 pin are low level, the single-chip microcomputer key voltage signal of unblanking is provided, whether singlechip chip V1 detects is the key of unblanking, it is the key of unblanking, the seven segment numerical tube display shows "-", the input of wait password, press key button K1, resistance R 3, R2, R1 and YR1, the voltage division signal of YR2 makes contact 14 voltages be lower than the threshold voltage of V2B, make V2B go out high level, the P31 pin of singlechip chip V1 is a high level, resistance R 3 and R1, R2, YR1, the voltage division signal of YR2 makes contact 15 voltages be higher than the threshold voltage of V2C, make V2C go out low level, the P30 pin of singlechip chip V1 is a low level, the K1 button provides the single-chip microcomputer operation signal, after single-chip microcomputer detects this signal, the control display is from " 0; 1; 2; 3; 4; 5,6,7,8,9 ;-" Automatic Cycle shows, after choosing wherein arbitrary symbol, decontrol the K1 button, the seven segment numerical tube display shows chooses code data, after for example choosing 3, decontrol behind the button K1 3 first items that are password, press K1 again, display still from " 0～9 ;-" Automatic Cycle shows, if after choosing 7,7 are second password behind the relieving button, the rest may be inferred, if can input each figure place of password. display shows this password mistake, press key button K1, reselect this code data, if display shows that this password is correct, press key ACK button K2, K2 connects the voltage negative pole with YR1 and YR2 short circuit, the same when inserting with key, single-chip microcomputer P30, P31, all go out high level with P32, ACK button K2 is provided operation signal, after single-chip microcomputer detects this signal, represent this bit code end of input, sound equipment prompting 1 time, and the input of next sign indicating number of wait or terminating symbol.Choose "-" to be end mark if press key button K1, press key again and confirm button K2, represent whole password end of input.

Behind the password end of input, the password that single-chip microcomputer will be inputed password and memory V3 preservation compares, and password is more correct, and display shows that " || " allows to unblank to indicate, Single-chip Controlling electromagnet DCT adhesive, and the B1 music tip allows the key unlocking of unblanking.Comparison error, seven segment numerical tube display show that " H " points out again the password input, and password input error number of times is less than 3 times, sound equipment prompting 3 times, if password input error number of times equals or exceeds 3 times, Single-chip Controlling B1 reports to the police.

After if key inserts, it is not the key of unblanking that single-chip microcomputer detects, it is the IC-card emergency key, be the P30 of singlechip chip, P31 and P32 pin are low level entirely, singlechip chip P32 pin is by the code data of contact 13 input emergency keys, reading data is IC-card emergency key code datas, the IC-card emergency key code data that the IC-card emergency key code data that reads and memory V3 are preserved compares, and relatively more consistent, key is legal, the seven segment numerical tube display shows that " || " allows the bis of unblanking, the insertion key of unblanking, Single-chip Controlling electromagnet DCT adhesive, B1 music tip, the key that allows to unblank drives lock core and rotates, and makes dead bolt 10 motions; More inconsistent, key is illegal, and Single-chip Controlling B1 reports to the police.

If after key inserted, the single-chip microcomputer testing result exceeded schedule time neither the key of unblanking is not again the IC-card emergency key, and safety cabinet is forbidden unblanking, single-chip microcomputer starts B1 and reports to the police.

The program software of sketching singlechip chip V1 below in conjunction with Fig. 2 and Fig. 3 detects the correlated process of judging that the key of unblanking, IC-card emergency key enter lock core, at first to deposit the password of IC-card emergency key in memory V3 with unblank key cipher and command code, and collated correct.

Unblank key 100 inserts in the mechanical locks 120, by lock core conductive contact input singlechip chip V1 pin P32 is that high level P31 pin and P32 pin are when being low level, single-chip microcomputer V1 testing result is the key insertion of unblanking, single-chip microcomputer carries out key and detects 140, it is the key operated button K1 input data cryptogram 150 of unblanking, operation push-button K2 confirms, the machine-readable password 160 of monolithic, running through single-chip microcomputer behind the password will input the password of password and storage and compare 170, if password is correct, allow to unblank 180, Single-chip Controlling electromagnetic actuation 200; Password is more incorrect, allows to re-enter 171 three times, if continuous three times or above mistake, audible alarm 210;

IC-card emergency key 101 inserts mechanical lock interior 120, promptly enter lock core conductive contact 130, the pin P32 of singlechip chip V1 changes detection key attribute 140 from high to low by contact 13 and reverser V2A level, be judged as the IC-card emergency key, the machine-readable IC-card emergency key of monolithic password 111, and with memory in deposited password relatively 121, the comparative result password is correct, allow to unblank 180, singlechip chip V1 controls electromagnetic actuation 200; If IC-card emergency key password mistake then starts audible alarm 210.

No matter be unblank key or emergency key insertion mechanical lock, detect through singlechip chip V1 and judge that if being judged as illegal key enters, singlechip chip V1 can start audible alarm 210.If be judged as legal key, the available key turns dead bolt 10 of unblanking is normally unblanked.

Claims

1. key is imported the two control safety cabinets of password unlocking, comprise the Double control type lock core that is located in the safety cabinet, the control unlock circuit, electromagnet assembly and audible alarm circuit, and unblank key and the IC-card emergency key that are provided with conductive contact and mechanical contact, it is characterized in that unblanking being provided with on the key key circuit, be provided with conductive contact and corresponding conduction pellet shot from a slingshot of mechanical contact and mechanical billiard in the lock core with the described key of unblanking, be provided with singlechip chip and memory in the safety cabinet, be connected to the detection trigger circuit of singlechip chip input, the singlechip chip output connects unlock solenoid assembly and charactron display respectively, store memory has and described key output password and the corresponding storage password of IC-card emergency key password of unblanking, and the key circuit of the described key of unblanking connects the detection trigger circuit of singlechip chip input and forms the key input signal circuit of unblanking.

2. the two control safety cabinets of key input password unlocking according to claim 1, it is characterized in that the key circuit (2) established on the described key handle of unblanking (1) is made up of the button K1 and the K2 of resistance YR1, YR2 and series connection, the end of button K1 and K2 is connected key metallic object (12).

3. the two control safety cabinets of key input password unlocking according to claim 1, it is characterized in that described detection trigger circuit is made up of resistance R 1, R2, R3 and reverser V2A, V2B, V2C, one termination power Vcc of resistance R 1, R2, R3 series connection, an end of resistance R 1 is connected the back by contact 13 and is connected with the P32 pin of singlechip chip with reverser V2A; Resistance R 1 is connected with reverser V2B with the contact 14 of R2 and then is connected with the P31 pin of singlechip chip; Resistance R 2 is connected with reverser V2C with the contact 15 of R3 and then is connected with the P30 pin of singlechip chip.

4. the two control safety cabinets of key according to claim 1 input password unlocking is characterized in that described conductive contact (3) of unblanking on the key contacts with the contact 13 of the resistance R 1 of detection trigger circuit by lock core conduction pellet shot from a slingshot (5) to import the key signal of telecommunication of unblanking.

5. the two control safety cabinets of key according to claim 1 input password unlocking is characterized in that described control unlock circuit is made up of P17 pin, resistance R 12, the triode Q2 of singlechip chip V1, and electromagnet assembly DCT is connected between triode Q2 and the power Vcc.