CN2031026U - Mechanical and electronic safety cipher lock - Google Patents

Abstract

The utility model discloses a mechanical and electronic safety cipher lock, comprising a mechanical lock on whose lock tongue a braking slot hole is provided, an electromagnetic controller and a touch electronic cipher controller. The safety performance of the lock is increased. In the blocking state, an armature which is a stopper on the electromagnetic controller is bulged into the braking slot hole of the lock tongue for preventing the movement of the lock tongue and the unlocking without ciphers. After the unlocking person rightly presses the touch key ciphers, the electromagnetic controller can temporarily eliminate the braking to the lock tongue. Thus, the lock can be unlocked by the key. Because the needed electromagnetic control force is very small, the utility model has the advantages of small size, low cost and anti-pry. The utility model can be used for modifying the existed door lock.

Description

Mechanical and electronic safety cipher lock

The utility model belongs to mechano-electronic cipher control technology, relates to a kind of mechano-electronic double insurance coded lock with electronic cipher and electromagnetic controller control dead bolt.

In order to improve the confidentiality of lock, prior art adopts following three kinds of practices;

(1) mechanical cipher, its complex structure and manufacturing cost height, confidentiality is poor, and this lock is easy to be opened by experienced " safety cabinet king ".

(2) single electronic password lock of directly unblanking with electronic cipher control electromagnet.The shortcoming of this lock be unblank need be bigger electromagnetic force, thereby need the executive component of big power consumption, take electric, the cost height.And in order to improve confidentiality, its password is quite complicated.For example useful ten commutators will preset ten bit complements as the cipher switch sign indicating number earlier before unblanking, and then with ten password unlockings.This lock not only uses inconvenience, and is also high-leveled and difficult to apply because of manufacturing cost.

(3) lock body one side at mechanical lock adds sensor formation electronic alarm lock, and this lock does not increase function of keeping secret.

Existing electronic password lock, adopt mechanical commutator or press button method both at home and abroad mostly, the control circuit of the coded lock of seeing at present with regard to us of touch type electronic preferably, its security performance is still not strong, for example electronics is reported 1986 48 phases the 4th edition a kind of touch type electronic coded lock of being published, change traditional trigger button switch into touch sheet metal, this is its progress.But its (referring to accompanying drawing one) needs to adopt four controllable silicons and two relays etc. could form three passwords, and as seen its cost is quite high.Next its each error code key K ₄-K ₁₀All directly be connected, be easy to tested come out, even and the password of three remaining unlock key does not go to debate not, as long as handle is pinned this three keys simultaneously, just can open electronic lock.As seen the reliability of this electronic lock is still not high.

In addition, existing various electronic lock all is to drive dead bolt or serve as dead bolt with the movable core of electromagnet through cipher control circuit control electromagnet, so unblank to require great effort, makes the power consumption of circuit big, generally AC-powered can only be used, the difficulty of unblanking when having a power failure can not be overcome.

It is low that the purpose of this utility model provides a kind of cost; easy to use and reliable; confidentiality is high; the mechano-electronic dual fail-safe coded lock new construction of power consumptive province; need can not only be used to the various locks of reinforced safety; but also can be used to reequip existing mechanical lock easily, make it to increase the function of cryptoguard, pick-proof and warning.

The utility model mechano-electronic dual fail-safe coded lock is by forming through mechanical lock, dead bolt electromagnetic controller and touch type electronic password control device three parts of the transformation of the way.

Technical characterictic of the present utility model is structure that above-mentioned three parts are formed and the indirect method for unlocking that is adopted, promptly decide this lock to be opened, thereby reach requirements such as the dual control in power consumptive province and key and electronic cipher, safety are good by key by the dead bolt electromagnetic controller that is subjected to Crypto Control Unit restriction.

Mechanical lock is the like this transformation of the way: promptly process braking specially with groove or hole on the back side of dead bolt 2 or side, the size of slotted eye is more bigger and the position is corresponding than the size of dead bolt controller.

The dead bolt electromagnetic controller is made up of the electromagnetic coil 4 that is located at tongue nest one side, iron core 5, spring 6, armature 7, porose dividing plate 8 and tongue nest housing 3, the end of armature 7 becomes block 9, and its other end and spring 6 join, when the energising of coil end, armature is subjected to the elastic force effect, and its terminal block can protrude in breaker slot (or braking) hole of dead bolt automatically, prevent the sledge lock and do not have password unlocking, armature is by the iron core adhesive when coil electricity, and block braking slotted eye just away from keyboard just can be opened lock.In the tongue nest and be in and also be provided with perforate dividing plate 8 between block and the dead bolt, the position of institute's perforate and shape are corresponding with block and braking slotted eye, in order to the protection block.

The touch type electronic Crypto Control Unit is by comprising a time-delay power supply membrane keyboard K ₁, three unlocking cipher membrane keyboard K ₂, K ₃, K ₄And several error codes block membrane keyboard K ₅-K ₁₂And the membrane keyboard group that constitutes, time-delay power supply unit 102, cryptochannel parts 103, error code lockout circuit parts 105, decision means 104, the parts 106 of unblanking, warning piece 108 and power supply 101 and form.Wherein power supply 101 is through time-delay power supply unit 102, give cryptochannel parts 103 and 105 power supplies of error code lockout circuit parts respectively, decision means 104 is accepted the signal of cryptochannel 103 and error code lockout circuit 105 respectively, with the whether conducting of decision unlock circuit 106, if 106 conductings then will make the coil 4 energising adhesives of electromagnetic controller 107, then lock body 109 is that available key 110 is opened.

The operating principle of the utility model dual fail-safe coded locks is described below in conjunction with accompanying drawing 6 and accompanying drawing 7: the people has touched time-delay power key K ₁After, connect tens seconds of power supplys can automatically for cryptochannel parts 103 and error code lockout circuit parts 105.If touch K more successively ₂, K ₃, K ₄Key just can make decision means 104 send unlocking signal, makes parts 106 energisings of unblanking, and makes the coil 4 energising adhesives of the dead bolt controller 107 that is connected with it, removes the braking to dead bolt, just can unblank.If touching K ₂-K ₄Process in touch arbitrary key K of error code lockout circuit parts ₅-K ₁₂, not only can not be at a period of time drawback lock, but also cause alarm signal, report to the police by warning piece 108.

Below in conjunction with accompanying drawing 7 explanation the utility model electronic cipher controller circuit, the cryptochannel parts 103 in the used touch Crypto Control Unit of the utility model are by two flip and flop generator T ₁And T ₂, one with a door Y ₁, a triode BG ₁, four resistance R ₁-R ₄Be formed by connecting.First flip and flop generator T wherein ₁S ₁End leads to two cryptographic key K of younger brother ₂, R ₁One two input of termination and door Y ₁, this and door Y ₁Input and resistance R ₁Polyphone back ground connection, another input leads to password the 4th and triggers key K ₄, Q ₁Termination password decision means and door Y ₃Input, Q ₁Non-termination triode BG ₁Colelctor electrode, this triode BG ₁Base stage serial resistance R ₄After lead to password the 3rd and trigger key K ₃, and BG ₁Emitter stage through resistance R ₃Receive positive source.Second flip and flop generator T ₂S ₂End is also received triode BG ₁Emitter stage on, and T ₂R ₂End is through resistance R ₂Ground connection.Q ₂The non-end password section of declaring parts Y ₃Input.Here said two flip and flop generator T ₁, T ₂An and and door Y ₁Can combine by integrated circuit, triode, diode and resistance.

Error code lockout circuit parts 105 are by a flip and flop generator T ₃, one with a door Y ₂And resistance R ₅And form.The S of trigger wherein ₃Terminate to many inputs and door Y ₂Output, and Y ₂Each input all each is received each error code through diode and triggers key, just all be in high resistance state, trigger T between each key to protect ₃R ₃End is through resistance R ₅Ground connection, Q ₃Terminate to cipher control parts and door Y ₃Input.

The parts 106 of unblanking are by three triode BG ₂-BG ₄, three resistance R ₆, R ₇, R ₈, a capacitor C ₁With a diode D ₁Form, so that the electric current of unblanking to be provided.Directly enter from the unlocking signal of decision means 104 and to unblank to control triode BG ₂Base stage, and BG ₂Emitter stage meet the D of diode ₁Negative terminal, D ₁Positive pole connect positive source, BG ₂Colelctor electrode receive BG ₃Base stage, and BG ₃Grounded emitter, colelctor electrode is through the coil J and the triode BG of electromagnetic controller ₄Colelctor electrode link to each other.Resistance R ₆And R ₇Be connected on BG after the series connection ₃Colelctor electrode and BG ₄Base stage between, at R ₆Two ends shunt capacitance C ₁, BG ₄A utmost point through resistance R ₈Connect positive source.And an other utmost point also connects positive source.

Used cryptochannel parts can and connect two covers or more than three covers in the utility model, with the figure place of further increase password, and two this cryptochannel of cover parts in parallel, then unlock code is seven passwords, three covers in parallel then are ten passwords.

Said each membrane keyboard of the utility model K in addition ₁-K ₁₂Can replace with key switch, when key switch was pressed, the relative trigger end can be connected by negative pole temporary transient and power supply, and when hand left button, trigger end just disconnected with power cathode.Replace original circuit working principle and the structure in back not change like this.

The utility model mechano-electronic double insurance coded lock has been compared following advantage with existing mechanical lock, Puzzle electronic lock:

(1) braked by block at the blocking dead bolt, make dead bolt increase tamper-resistant function.

(2) confidentiality height, have key and electronic cipher double insurance function, 1000 kinds of a kind of shaped as key bit deficient changes of model, and the password that will touch in 12 keys 4 keys just has 11800 kinds, so mechano-electronic password double insurance is than adopting key can improve ten thousand times.

(3) the dead bolt electromagnetic controller can be done very for a short time, thereby is suitable for putting in the tongue nest of common lock, can be conveniently used for reequiping existing mechanical lock, makes it to increase the electronic cipher defencive function.

(4) the required electromagnetic force of control dead bolt is very little, and has adopted the power saving measure in unlock circuit again, can make unblank to keep Current Control must be less than 20 milliamperes, static power consumption is unblanked ten times less than 2 microamperes every day, four joint No.5 cells can be with 1 year.

(5) all be to be in high resistance state between each membrane keyboard, promptly be difficult for measuring password.

(6) free defencive function in the Crypto Control Unit; even touch right unlocking cipher more continuously behind the error code key and can not open if touched earlier; just can reenter unlock operation after delay circuit such as having only to quit work, this people that can make the sort of attempt sound out password by rapid touch can't succeed.

(7) the utility model can dry cell power supply, but also AC/DC when only using up again with the electricity of dry cell power supply and dry cell, can also be used password unlocking from the external dry cell power supply of assignment key, and is safe and reliable to guarantee.

(8) the used element of the utility model is few and give full play to its effect, has saved the electromagnet and the element of big power consumption again, so cost is low, is convenient to popularization.

Description of drawings

Fig. 1 is existing a kind of cryptochannel schematic diagram that touches Puzzle electronic lock.

Fig. 2 is the mechanical construction drawing of first kind of embodiment of the present utility model.

Fig. 3 is the improvement scaled-down version of Fig. 2, and electromagnetic controller can be contained in the dead bolt nest.

Fig. 4 is the mechanical construction drawing of the utility model another embodiment, is to have breaker slot or brake hole in the side of dead bolt.

Fig. 5 is the mechanical construction drawing of a mutation of the present utility model, and armature becomes movable core, and its end is as directly the come in and go out braking slotted eye of dead bolt of block.

Fig. 6 is the utility model control system block diagram, 101-dc source wherein, the 102-power supply of delaying time, 103-cryptochannel parts, 105-error code lockout circuit parts, the 104-decision means, the 106-parts of unblanking, 107-dead bolt electromagnetic controller, the 108-warning piece, 109-mechanical lock lock body, the 110-key

Fig. 7 is the circuit theory diagrams of the utility model electronic cipher controller, wherein K ₁-K ₁₂Be membrane keyboard, R ₁-R ₈Be resistance, BG ₁-BG ₄Be triode, TK is time-delay power supply, C ₁-C ₄Be electric capacity, D ₁-D ₅Be diode, Y ₁-Y ₃For with door, T ₁-T ₃Be flip and flop generator.

Claims (8)

1, a kind of mechano-electronic double insurance coded lock, it and common the mechanical lock of opening with key, and it is all inequality directly to drive the electronic password lock of dead bolt with electromagnet, is with through the mechanical lock of the transformation of the way and add the upper lock tongue electromagnetic controller and form on the basis of improved touch type electronic Crypto Control Unit.The person of unblanking has only earlier by right password of unblanking, and could open this lock with key after making the adhesive of dead bolt electromagnetic controller.It is characterized in that:

The method for remanufacturing of A. said mechanical lock through changing a social system is the braking slotted eye of special processing on dead bolt.Said dead bolt electromagnetic controller is by at electromagnetic coil, iron core, spring, armature, porose dividing plate and the tongue nest housing of the one side setting of dead bolt nest and form.One end of armature becomes block, and when not switching on, armature is subjected to the elastic force effect, and its terminal block can protrude into the braking slotted eye of dead bolt automatically.When coil electricity, armature is by the iron core adhesive, and link stopper is the braking slotted eye of dead bolt away from keyboard just, just can unblank.Dividing plate is fixed in the tongue nest and is between block and the dead bolt, is having corresponding hole with the corresponding position of block on pulling.

B. said touch type electronic Crypto Control Unit, membrane keyboard group, time-delay power supply unit, cipher control parts, the error code of being made up of time-delay power key, several unlock key and several error code keys block parts, unblank parts and power supply are formed.

2, the further feature of mechano-electronic dual fail-safe coded lock is to process specific breaker slot or hole specially at the back side of dead bolt or the appropriate location of side according to claim 1, the armature block of electromagnetic controller can protrude into this slotted eye under the elastic force effect when blocking, the shape and the position of the block on the position of slotted eye and shape and the armature are similar but bigger, so that block stops dead bolt to be opened automatically.

3; mechano-electronic dual fail-safe coded lock as claimed in claim 1 is further characterized in that the electromagnetic controller that is installed in tongue nest one side; it is by electromagnetic coil; the soft iron iron core; spring is formed with the armature that has block; armature is under the elastic force effect at ordinary times; block the breaker slot of dead bolt through the dividing plate hole; can not unblank; only when electromagnetic coil connection power supply makes armature be lived by the iron core adhesive; could remove the braking action of block to dead bolt; just can unblank with key etc.; be fixed with the perforate dividing plate, the shape of institute's perforate on the dividing plate near the dead bolt place in this external tongue nest; position and block and braking slotted eye are corresponding, and password is unblanked by force or the sledge lock in order to prevent from not have; and electromagnetic controller had protective effect, said here spring can also can be the sheet spring for the silk spring.

4, mechano-electronic dual fail-safe coded lock as claimed in claim 1 is further characterized in that the cipher control parts of said touch type electronic Crypto Control Unit are by two flip and flop generator T ₁And T ₂, one and a door Y ₁, a triode BG ₁, four resistance R ₁-R ₄Be formed by connecting.First flip and flop generator T wherein ₁S ₁End leads to second cryptographic key K ₂, and R ₁One two input of termination and door Y ₁, this and door Y ₁Input and resistance R ₁Polyphone back ground connection; Another input leads to password the 4th and triggers key K ₄, Q ₁Termination password decision means and door Y ₃Input, Q ₁Non-termination triode BG ₁Colelctor electrode, this triode BG ₁Base stage serial resistance R ₄After lead to password the 3rd and trigger key K ₃, and BG ₁Emitter stage through resistance R ₃Receive positive source.Second flip and flop generator T ₂S ₂End is also received triode BG ₁Emitter stage on, and R ₂End is through resistance R ₂Ground connection, Q ₂The non-end password section of declaring parts Y ₂Input.Here said two flip and flop generator T ₁, T ₂An and and door Y ₁Can combine by integrated circuit, triode, diode and resistance.

5, mechano-electronic dual fail-safe coded lock is further characterized in that described error code lockout circuit parts are by a flip and flop generator T according to claim 1 ₃, one with a door Y ₂And resistance R ₅And form.The S of trigger wherein ₃Terminate to many inputs and door Y ₂Output, and Y ₂Each input all each is received each error code through diode and triggers key, just all be in high resistance state, trigger T between each key to protect ₃R ₃End is through resistance R ₅Ground connection, Q ₃Termination and door Y ₃Input.

6, mechano-electronic dual fail-safe coded lock is further characterized in that the parts of unblanking according to claim 1, by password decision means and door Y ₃The unlocking signal of output enters unblanks to control triode BG ₂Base stage, and BG ₂Emitter stage meet diode D ₁Negative terminal, D ₁Positive pole connect positive source, BG ₂Colelctor electrode receive BG ₃Base stage, and BG ₃Grounded emitter, colelctor electrode is through the coil J and the triode BG of electromagnetic controller ₄Colelctor electrode link to each other resistance R ₆And R ₇Be connected on BG after the series connection ₃Colelctor electrode and BG ₄Base stage between, at R ₆Two ends shunt capacitance C ₁, BG ₄Colelctor electrode through resistance R ₈Connect positive source; BG ₄Emitter stage is also linked positive source.

7, cryptochannel parts as claimed in claim 4 can two covers in parallel in the utility model or more than three covers, with the figure place of further increase password, and two this cryptochannel of cover parts in parallel, then unlock code is seven passwords, three covers in parallel then are ten passwords.

8, the mechano-electronic dual fail-safe coded lock described in claim 1 is further characterized in that described each membrane keyboard can replace with key switch, when key switch is pressed, the relative trigger end can be connected by negative pole temporary transient and power supply, when hand left button, trigger end just disconnected with power cathode.

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