CN2053658U - Special electronic secret code lock for safe - Google Patents

Abstract

The utility model discloses a special electronic cipher lock for a safe, which belongs to the application of the electronic technology and the mechanical principle in the renewal and the generation of the safe. The electronic cipher lock and the alarm system of the prior art has the defects of complex circuit and incomplete anti-theft and alarm function, or is not suitable for the need of the safe. The special electronic cipher lock and the alarm system for the safe of the utility model has the advantages of simple circuit structure, high security, reliable security performance, convenient operation, comprehensive anti-theft and alarm function and true alarm phenomenon, and is matched with a corresponding mechanical mechanism.

Description

Special electronic secret code lock for safe

The utility model belongs to electronic technology and the application of theory of mechanics in the update of safety cabinet.

The electronic password lock of prior art and warning system, circuit is complicated usually, and anti-theft alarm function improves or is not suitable for the needs of safety cabinet inadequately.

The purpose of this utility model is to overcome above-mentioned shortcoming, adopts simple circuit configuration and reasonably frame for movement as far as possible, obtains multiple functional electronic password lock that is applicable to safety cabinet and warning system.Safety cabinet after use updating, for society provides a kind of high security that has, security personnel's dependable performance, easy to use, anti-theft alarm function is comprehensive, does not have the novel safety cabinet of making a false report alert phenomenon.

Accompanying drawing is enforcement principle, the structure chart of the utility model in the update of safety cabinet.

Fig. 1 is the safety cabinet shape assumption diagram, and Fig. 2 is a longitudinal sectional drawing, and Fig. 3 is the safe door rear elevation.Cabinet (1), first sect (2), second sect (4).Go up the installing electronic password lock in second sect (4), code keypad (5) is housed on the door face board, have 10 buttons.Also have power supply lock (7), AC Power supply socket (8), Direct current power source socket (9), power supply indicator (6).

The electronic password lock that the utility model adopts, its circuit theory such as Fig. 5, shown in the dotted portion, machine construction principle is as shown in Figure 4.Be described in detail as follows:

In accompanying drawing five frame of broken lines, 6 d type flip flops connect as follows: the Q output of d type flip flop 1 and the D input of d type flip flop 2 join; The Q output of d type flip flop 2 and the D of d type flip flop 3 input are joined.Promptly shown in the figure five, Q1 meets Q2; Q2 meets Q3; Q3 meets D4; Q4 meets D5; Q5 meets D6.After the presetting end and all connect the removing end of 6 triggers of high potential (promptly putting 1) and connect of 6 d type flip flops, charge-discharge circuit and the power supply formed by R26, R29, C5 join.The D input of d type flip flop 1 is by high potential (being 1), and the Q output Q6 of d type flip flop 6 is the output of unlocking signal.

When circuit was connected power supply, electric current, charged the initial moment to capacitor C 5 chargings through R26, and removing end is 0, and the Q output that presets end and be 1,6 d type flip flop is 0; After the of short duration time, the C5 charging finishes, and the removing terminal potential rises to certain value and becomes 1 by 0, and preset end this moment is 1, and removing end is 1; The Q output does not change, and still is 0.Therefore, behind the connection power supply, the stable initial state of each trigger is as follows:

D type flip flop 1; Be predisposed to 1; Removing is 1; The D input is 1.

D type flip flop 2-6; Be predisposed to 1; Removing is 1; The D input is 0.

The Q output of d type flip flop 1-6 all is 0.

Because the input-output characteristic of d type flip flop as can be known, five d type flip flops of 2-6 are not controlled by the CP input, and are from CP end input pulse, inoperative to trigger.Q end remains 0, has only d type flip flop 1 to be in slave mode, imports a pulse from CP1, and d type flip flop 1 overturn immediately, and Q1 becomes 1 by 0, and the D2 end that makes d type flip flop 2 is also from 0 change 1, and d type flip flop 2 changes controlled state into by uncontrolled like this.Hence one can see that, and this method of attachment of 6 d type flip flops wants last trigger upset, even Q6 is output as 1, and must be successively from CP1, CP2, CP3, CP4, CP5, CP6 input pulse.This circuit has designed code keypad and encoder according to above principle.

Code keypad is made up of 10 two contact buttons, in connected mode such as the accompanying drawing five, shown in the K1-K10.Constant close contact series connection ground connection, constant open contact links to each other with power supply after meeting a resistance R 1-R10 respectively, pushes button, and its constant close contact disconnects, and prevents misoperation; The constant open contact closure, restore the back of letting go.

Encoder is made up of 10 pairs of line bar connectors, as representing with symbol " " in the accompanying drawing five; " ↓ " expression inserted link, expression socket.Inserted link is fixing in the circuit board, and wherein 6 indicate A, B, C, D, E, 1 inserted link, are connected with CP1, CP2, CP3, CP4, CP5, CP6 respectively, indicates two of " 0 " symbol in all the other 4 inserted links and is connected with removing to hold, indicate "! " two inserted links and the outage J2 of symbol join.Socket with lead respectively with R1, R2, R3, R4, R5 ... R10 joins.Each socket all can be inserted on arbitrary inserted link, also can arbitrarily dial down and other arbitrary socket transpositions, thereby reach the purpose of random coding.Each coding is put on a number on socket, is respectively 0-9, and 10 buttons are also put on the number of 0-9 respectively on the same code keypad, and corresponding one by one with number on the coding socket.

The course of work of the electronic password lock in the utility model is such:

(1) coding: selected one group of password, for example: 294630, from coding carrying seat, select wherein 6 corresponding sockets, press the order of password, order is inserted on A, B, C, D, E, the F inserted link, and then the password of safety cabinet is 294630 by compiling and editing just, and other sockets insert respectively on all the other 4 inserted links.

(2) connect power supply, turn on the power switch lock, the K13 closure among the figure five then, power supply uses for d type flip flop after the voltage stabilizing that T7, T1 form.

(3) press on the code keypad, indicate the button of 2,9,4,6,3,0 numeral, 6 d type flip flops overturn successively, and Q6 end output high potential makes T6 become conducting by ending, relay J 1 action, and the KJ1 closure, electromagnet L action is unblanked.If press button not according to the sequence of coden of compiling and editing, then Q6 can not export high potential, and electromagnet is failure to actuate, and can not unblank.

Except 6 cryptographic keies, also have 2 clear keys to be mixed in wherein in (4) 10 buttons, if mistake is by in two buttons wherein any, C5 is by short circuit dischange, and all d type flip flops are put 0 and can't be unblanked.Also have two alarm keys also to be mixed in wherein simultaneously, mistake is by the alert key of reporting to the police, and then relay J 2 is connected the power supply action, and the KJ2-1 constant close contact disconnects T6 to be ended, the closed J2 self-locking of constant open contact.KJ2-2 disconnects simultaneously, alarm equipment alarm.Even this moment is later on by also unblanking to password.

By above description as can be known: electronic password lock of the present utility model has following advantage:

(1) line construction is very simple, only needs integrated package (or three couples of DIC) and a few components with a 6D trigger.Significantly reduced the chance that breaks down, adapted to and produce in batches.

(2) use is very convenient, can arbitrarily encode, and the figure place of password also is easy to increase (increase a d type flip flop and can increase one digit number)

(3) except that two alarm keys, all the other 8 buttons are careless disorderly by not reporting to the police, and can not unblank.Can avoid the false alarm phenomenon so on the one hand, even have on the scene the unblanking of people also can not found password simultaneously by others, because the user can be earlier in order disorderly by sign indicating number, (remembeing not press alarm keys) pressed figure key according to the order of password more in due course and unblanked.

To sum up state (2), (3) point, make electronic password lock of the present utility model have high security.(shortcoming of error code newspaper lock is must be once by attached password, be easy to divulge a secret and the false alarm phenomenon takes place).

The frame for movement of electronic password lock of the present utility model as shown in Figure 4, is made up of bolt (22) shift fork (18) electromagnetic valve exchange (19), bolt guide rail (17), guide rail guide-localization piece (20), spring (16) (21) etc.

At closing time, swing handle, then the shift fork that links to each other with handle (18) is stirred the pulling force that bolt (22) overcomes spring (16) (21) and is moved right, when putting in place, the iron core of electromagnet lower end (24) stops bolt to reset in the effect of its back-moving spring (27) falls into the slotted eye (25) of guide rail (17), and door is locked.

When opening the door, electromagnet coil power, its top iron stamen (23) produces magnetic, because bottom iron stamen (24) has fallen into the slotted eye (25) of guide rail (17), has the about 5mm in gap between the upper and lower two iron stamens, adds upper and lower side iron stamen and is blocked by the guide rail hole hole wall.Therefore need very big gravitation to pick up lower end iron stamen, therefore need huge electromagnet, the utility model has designed following motion process in order to overcome this shortcoming.

When opening the door, rotate shift fork by handle and do garden arc motion, the pushing bolt continues to the right to move, the lower end iron stamen (24) and the hole wall of the slotted eye (25) of guide rail are disengaged, the other end of shift fork moves downward to lower compression top iron stamen (23) simultaneously, upper and lower two parts iron stamen (23) and (24) are contacted, and tightly hold bottom iron stamen.Handle is to counter-rotation then, and it is in aggregates that the iron stamen (24) that lock pin is served as in the bottom is held the back, and by back-moving spring (26) pull-up of top iron stamen, under the elastic force effect of spring (21) (16), bolt resets, and opens the door.

This structure just can be controlled huge safety cabinet bolt with less electromagnet, makes direct current supply voltage can reduce to 12V or lower, has reduced user's usage charges, also brings convenience.

Electronic password lock in the utility model, not power consumption at ordinary times, several seconds internal consumption electric energy when opening the door only, gate controlled switch K11 cuts off the power supply automatically among the back Fig. 5 that opens the door.

The warning system that the utility model adopts, the dashed line free frame is lived part in its circuit theory such as the accompanying drawing 5.

This warning system is made up of multiple alarm signal transfering circuit and alarm signal generator two large divisions.Channeling alarm signal transfer circuit such as one group of contact KJ2-2 of transistor T 8, T9, circuit breaker J3, levelness, vibration degree sensor K14, relay J 2 and resistance R 28, R26, R13, R14 wherein.Form the alarm signal generator that can send the police whistle sound as the police car by institute's target resistor R 15-R25, capacitor C 7-C12, loudspeaker Y D etc. among transistor T 10-T16 and Fig. 5, its peak power output can reach 2 watts.This warning system has two identical subsystems; One is contained in the safety cabinet, position, second sect (4), and one is contained in outside the cabinet, shown in (11), links to each other with cabinet with filament (12).Select suitable position to place by the user.Each warning subsystem all has independently dc source, and KJ3-1 disconnects at ordinary times, and the alarm signal generator is consumed power not.T8 conducting in the multiple alarm signal transfering circuit, T9 ends, and total current has only about 1mA.

The function of the whole warning system of following division

When (1) opening the door by password, if mistake press alarm code, then, J2 energising action K J2-2 disconnects, and the base resistance R28 of T8 disconnects, and T8 is become by conducting and ends, and the T9 base potential rises in this process, and T9 is then by by the change conducting.The J3 action, the KJ3-1 closure is connected the alarm signal generator power, and the feedback effect by R13 is ended T8 simultaneously, and this state of T9 conducting remains unchanged, and alarm successively sounds the alarm in the cabinet.Meanwhile, because the J3 action disconnects another group contact KJ3-2 of J3, the outer warning system of cabinet repeats said process and also reports to the police simultaneously.Open cabinet behind the door until owner, gate controlled switch K12 deenergization just can stop to report to the police.

(2) structure of the K14 in the accompanying drawing 5 is shown in Figure 6, is levelness, the vibration degree sensor of a mono-pendulum type, and it is installed in the position of (10) in the safety cabinet, is connected on the position of K14 with two leads.

Safety cabinet horizontal positioned at ordinary times, pendulum-type (26) transfixion, swing ball and shell (25) mutual insulating is equivalent to K14 and disconnects.When cabinet is shifted, its level inclination was greater than 5 o'clock, or cabinet is subjected to powerful vibration, and the amplitude of fluctuation that makes swing ball greatly to a certain degree the time swing ball (26) contact with shell (25), be equivalent to K14 closure among the figure five, T9 becomes conducting J3 action meanwhile, KJ3-1 closure by ending immediately, KJ3-2 disconnects, and repeats the process of above-mentioned (1).

(3) outer warning subsystem is contained in the box shown in (11), and the interior warning subsystem interior with lead 12 and cabinet interrelates.

If cut off line or dial and remove attachment plug, or with two thin wires (12) short circuit, its result is the same with the principle of one group of contact KJ3-2 disconnection of Fig. 5 repeat circuit J3, and outer alarm sounds the alarm immediately.

The thin wire that outer alarm links to each other with cabinet also can be arranged in appropriate locations such as door, window, also can be arranged in appropriate location in the cabinet, and anti-electricity, gas welding cutting are reported to the police.

In sum, this warning system can prevent effectively the robber use remove, prize, pound, brill, electrogas welding, cutting, etc. violent means commit theft.Add the double door structure of safety cabinet and use electronic password lock, make the novel safety cabinet after the update have high security, security personnel's dependable performance, easy to use, the outstanding advantage that anti-theft alarm function is complete.

Claims (1)

1, a kind of safety cabinet special electronic coded lock, its spy is:

A. the digital circuit formed by d type flip flop 1,2,3,4,5,6 and resistance R 29, R26, capacitor C 5 of the circuit structure of said electronic password lock; Be contained in code keypad on the cabinet door face board by what K switch 1-K10 formed; By connector A, B, C, D, E, F, O, O,! ! The encoder of forming;

B. the door lock mechanism formed by the electromagnet 19, bolt guide rail 17, guide rail guide-localization piece 20, the spring 21 that divide upper and lower two iron leg cores 23,24 to form of the frame for movement of said electronic password lock.

Images