CN2256017Y - Digital coding electronic lock with safeguard mechanism - Google Patents

Abstract

The utility model relates to a digital coding electronic lock with a safeguard mechanism. The utility model is composed of a code output keyboard, a main control circuitboard, an electromagnetic lock head, an alarm device, an alarm bell and an alarm light which are connected with each other to form an integrative structure by conducting-wire cables. The power supply switches of the lock head and the alarm system respectively adopt a bidirectional controlled silicon chip, and the bidirectional controlled silicon chips are controlled by the door opening of the TTL electrical level or an alarming signal. When the utility model is used, the working range is 3V to 800V, the load current can be reached by more than 8 A, and the alternating current and the direct current can be used together. According to the need of a user, the door-opening code output mode can adopt a single keystroke with multi-digit code, a miniature code wheel and a word with a key code. The utility model has multi-function, and the utility model has the integrative function of a coding electronic lock, a protector and an alarm. The utility model has the advantages that flexible and various functions are realized, the easy use is realized, the wide service application is realized, the code is difficult to decode, the user is easy to change the code, and the code-identifying ability is strong.

Description

The numerical control Puzzle electronic lock of band protector

The utility model relates to lockset, particularly the digital integrated electronic lock of band security personnel, warning device.

So far, as the patent No. is that 91224581.6 " multifunctional electronic coded lock " discloses a kind of " 0 " or 0 coding circuit of " 1 " binary one, can realize with one piece of 74LS147, to password itself, can only can be regarded as is that a decimal system number compares " password is not close ", and no user conveniently changes a yard device arbitrarily, true and false on-off circuit each only one road sign indicating number improve confidentiality, the property decoded is bigger at random.The patent No. is that " coded electronic lock " coding circuit of 92206450.4 is two inputs of an analog signal comparator, one end is set up a certain level signal in advance, the other end provides signal by code-disc, and conduct to another input of comparator through key, comparator is exported whether equal signal of two level, this technique decodes is easy, if from the beginning code-disc is turned to tail, though can touch and report to the police but also can touch a yard equal voltage levels, be that analog level signal compares in addition, the user sets up the signal difficulty, job insecurity, manufacture craft difficulty.

The utility model purpose is the deficiency at above electronic lock technology, a kind of numerical control Puzzle electronic lock that is one with multinomial function collection such as Puzzle electronic lock and protectors is provided, this lock is according to the password correctness of input, auto-unlocking and warning automatically, and for being subjected to the trespasser conveniently to send the rescue alarm signal at any time.

The utility model takes following measure to realize: the numerical control Puzzle electronic lock of band protector comprises defeated sign indicating number keyboard, main control board, tapered end and warning device, it is characterized in that with leader cable will fail a yard keyboard, main control board, electromagnetic type tapered end, warning device, the alert tinkling of pieces of jade, warning lamp fuses, be installed in indoor and outdoor respectively, and synergy, finish door lock function.Tapered end is an electromagnetic type standard machinery tapered end, the power switch of this tapered end and warning system is respectively with one piece of bidirectional triode thyristor chip BCR8A or BCR10A, controlled by the enabling signal and the alarm signal of main control board Transistor-Transistor Logic level, working range is 3 volts to 800 volts, load current reaches more than 8 peaces, and AC/DC; Defeated sign indicating number keyboard has three kinds of code-disc patterns such as single press-key lock multi-position code, single dial-up keyboard and a word one key to select for the user.This keyboard is installed in door and makes the defeated sign indicating number of a door opener usefulness outward, and keyboard is provided with figure key 5, password comparison key 3, contradiction key 2, reset key 4 and be installed in sign green light 1 on the keyboard.Key 5 and key 3 are finished defeated sign indicating number jointly; Key 5 is finished digital input, and key 3 is finished password comparison, differentiation and record.Be the contradiction key of avoiding the electromagnetic type tapered end to be subjected to electricity to generate heat and damage the solenoid actuated coil, be provided with one piece of dual-use function for a long time, correct when failing sign indicating number, the sign indicating number process that the inner pre-lock of input code and master control borad is put automatically relatively, automatically after the generation signal level makes the signal green light bright, pressing the contradiction key could go driving to open the door by output drive signal, bidirectional triode thyristor conducting, electromagnet tapered end get electric switch from opening; Wrong when defeated sign indicating number, produce alarm signal automatically and go to drive the conducting of warning bidirectional triode thyristor, warning system gets electric warning automatically immediately.Appoint and to touch the contradiction key and also will produce warning, this function is by digital trigger and the realization of combination of numbers gate circuit.Main control board is a surface-mounted integrated circuit, code-locked is put by the miniature digital switch lock of multidigit in this plate, put sign indicating number and change sign indicating number for the user, with chip 74LS151 or 74LS153 is numerical selector password of gating one by one, deliver to digital comparator 74L,S85 one end, deposit sign indicating number, code fetch, the correctness of comparison code, the door lock start signal, generation and the function circuit that drives signal of reporting to the police is digit chip 74LS160,74LS147,74LS85,74LS74,74LS153,74LS151,74LS04, and the digital integrated electronic circuit generation of 74LS14 formation, for example the password of code-disc input utilizes digital encoder 74LS147 to be converted into 4 binary-coded decimals; These 4 binary-coded decimals are transfused to digital comparator 74L,S85 one port, and the comparator another port is 4 BCD passwords that master control borad presets in the lock, and whether the two equates that comparator will produce " 1 " or " 0 " signal, be preserved by the sequential register circuit.When defeated next bit password, the automatic gating next bit of numerical selector 74LS151 or 74LS153 presetting cipher, deliver to comparator one end and treat and input password relatively, so circulation is totally lost until password by turn, and is also just intacter, little green light on the code-disc is just bright, if arbitrary password inputed by mistake, defeated sign indicating number is intact, reports to the police automatically.Defeated sign indicating number keyboard of the present utility model also can select miniature dial 6 to replace figure key 5 by different needs, and the code-disc diverse location is different digital from 0 to 9.In addition, figure key 5 also available ten pieces of numerical keys 0～9 is formed, and one yard on a key needs the defeated digital correspondent button of pressing to get final product.

The utility model compared with prior art its advantage is: function is many, integrates Puzzle electronic lock, protector, alarm, and flexible function is various, and is easy to use, of many uses.Since adopted individual palpation key, single dial and a word one key dish locking multidigit decimal number, the setting of the variation of sign indicating number keyboard structure and security personnel's contradiction key, the electronic lock password more is difficult to decode, and for example locks 4 decimal codes, and password combination just reaches 10,000 kinds more than.Governor circuit is made up of digital integrated electronic circuit entirely, and mirror sign indicating number ability is strong.Reflection is rapid, and reaching nanosecond is 10 ^-9Second, dependable performance, very simple and convenient is produced, debugs, installs and uses all to compact conformation.Main control board is provided with the microswitch that changes sign indicating number for the user, the user can revise password at any time arbitrarily, make password setting flexible, increased the randomness of password and the property decoded not, be beneficial to high security occasion such as bank, arsenal or personnel especially and change frequent occasion such as warehouse, hotel.Alarm source is numerous, incorrectly powers on, defeated sign indicating number is wrong, arbitrarily touch security personnel's contradiction key, at electronic circuit just often, uses mechanical key all can send warning.Owing to used the specific function of security personnel's contradiction key, finally when unblanking to touch this key, whenever but (defeated sign indicating number to, when the little green light of sign ignites exception), touch this key, system reports to the police immediately automatically, and theftproof is greatly improved, and can send the rescue alarm signal easily being endangered moment, only moment is subjected to electricity to the drive coil of electromagnetic type tapered end opening the door constantly, has avoided because of being subjected to the electricity heating to damage the solenoid actuated coil for a long time.Drive power switch is powerful bidirectional triode thyristor, and load capacity is big, and AC and DC is dual-purpose, can connect emergency power supply.Can join mechanical key emergent use when system's dead electricity or electronic circuit break down.

Below providing embodiment further specifies in conjunction with the accompanying drawings.

Fig. 1 is the EM equipment module of the numerical control Puzzle electronic lock of band protector;

Fig. 2 is the operating principle flow chart of the numerical control Puzzle electronic lock of band protector;

Fig. 3 is the main control board electronic circuit schematic diagram of the numerical control Puzzle electronic lock of band protector;

Fig. 4 is the defeated code-disc of individual palpation key;

Fig. 5 is the defeated sign indicating number of the miniature dial-type keyboard of the numerical control Puzzle electronic lock of band protector;

Fig. 6 is ten pieces of digital key boards of numeral of the numerical control Puzzle electronic lock of band protector.

Main control board and automatically controlled motherboard power supply are installed in little can, place indoor to make things convenient for the user to open box at any time, change password, tapered end is positioned on the door for the electromagnetic mechanical tapered end, having a power failure and electronic circuit when breaking down, can join mechanical key and unblank, defeated sign indicating number key plate is contained in outdoors.Indoor people directly presses electromagnetic type tapered end button, and door lock is from opening.Outdoor personnel utilize the defeated sign indicating number of defeated sign indicating number keyboard.The number of times that number key 5 is pressed among Fig. 4 is input password number, presses password comparison key 3 and finishes digital comparison, differentiation, record.For example password is " 9247 " first button 5 nine times, again button 3 once, button 5 twice, key 3 are once; Again button 5 four times, key 3 once, button 5 seven times, button 3 are once just finished defeated sign indicating number.If with the defeated sign indicating number of the miniature dial-type figure key among Fig. 5, the indicated number of dialling on dish is defeated yardage, is carved with the mark that 0～9 numeral shows on code-disc successively, then button 3 is once finished defeated sign indicating number.Figure key among also available Fig. 6, this figure key are ten pieces of digital keyboard-types of numeral, are made up of ten key, need defeated yardage to get final product, stagger the time when failing sign indicating number, once by reset key 4 by respective digital, can fail sign indicating number again again, have only behind the defeated sign indicating number after the correct little green light of sign is bright, be from opening by contradiction key door.The chip 74LS153 of Fig. 3 in main control board makes multichannel and selects peek usefulness, and 74LS147 is used for coding, the 74LS85 device of making comparisons, and 74LS160 makes register memory usefulness, and 74LS125,74LS04,74LS14,74LS08,74LS32 make logic and judge.

Claims (5)

1. the numerical control Puzzle electronic lock of band protector comprises defeated sign indicating number keyboard, main control board, tapered end and warning device, it is characterized in that will fail a yard keyboard, main control board, electromagnetic type tapered end, warning device, alarm bell, warning lamp with leader cable fuses, be installed in indoor and outdoor respectively, and synergy, finish door lock function.Tapered end is an electromagnetic type standard machinery tapered end, the power switch of this tapered end and warning system is respectively with one piece of bidirectional triode thyristor chip BCR8A or BCR10A, controlled by the enabling signal and the alarm signal of main control board Transistor-Transistor Logic level, working range is 3 volts to 800 volts, load current reaches more than 8 peaces, and AC/DC; Defeated sign indicating number keyboard is used as the defeated sign indicating number of door opener.

According to the numerical control Puzzle electronic lock of the described band protector of claim 1 it is characterized in that the defeated sign indicating number of individual palpation key multidigit keyboard be provided with the figure key (5) of finishing digital input, have the password comparator function and differentiate the password comparison key (3) of record, realize control function contradiction key (2) and change wrong defeated sign indicating number resetting by digital trigger and combination of numbers gate circuit after the reset key (4) of defeated sign indicating number again again, keyboard is provided with and indicates green light (1).

3. the numerical control Puzzle electronic lock of band protector according to claim 1 and 2, it is characterized in that main control board is a surface-mounted integrated circuit, code-locked is put by the lock of the multidigit microswitch in the master control borad, and delivers to digital comparator 74L,S85 one end by multi-path digital selector 74LS151 and 74LS153 gating password.Generation and the function circuit of depositing sign indicating number, code fetch, sign indicating number comparison, door lock start signal, the driving signal of reporting to the police are the digital integrated electronic circuit generations of 74LS160 in the digit chip, 74LS147,74LS85,74LS74,74LS153,74LS04,74LS14 chip formation.

4. the numerical control Puzzle electronic lock of band protector according to claim 1 is characterized in that the figure key on the defeated sign indicating number keyboard can also be miniature dial, and code-disc is marked with the digital numeral that needs input code.

5. according to the numerical control Puzzle electronic lock of the described band protector of claim 1, it is characterized in that the figure key on the defeated sign indicating number keyboard can also be one yard key of a word, indicate key combination with numeral 0～9 and form.

Images