CN2349309Y

CN2349309Y - Puzzle lock for safe

Info

Publication number: CN2349309Y
Application number: CN 98217682
Authority: CN
Inventors: 仝运长; 孙君曼
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-07-28
Filing date: 1998-07-28
Publication date: 1999-11-17
Anticipated expiration: 2008-07-28

Abstract

The utility model discloses a puzzle lock for a safe, comprising a mechanical puzzle device, a composite lock tongue device, a power supply and an electric magnet control circuit. The mechanical puzzle device comprises a driving rotor plate (4), a first and a second driven rotor plates (5, 6). The facade of the driving rotor plate (4) and the back surface of the first driven rotor plate (5) are respectively provided with permanent magnets (10), (11), the edge of the second driven rotor plate (6) is provided with more than one permanent magnet fixing groove (28), wherein, a permanent magnet (12) is arranged in one fixing groove. The permanent magnets on three rotor plates are respectively connected with the electric magnet control circuit. The utility model has novel structure, large puzzle key amount, strong time limitation and reliable performance.

Description

A kind of safety cabinet coded lock

The utility model relates to a kind of coded lock, especially a kind of safety cabinet coded lock.

The safety cabinet coded lock of selling on market at present mostly is old three mechanical code locks.The advantage of this coded lock is simple in structure, and manufacturing technique requirent is not high, and is with low cost, its major defect is that size of key is little, and the password legibility is during from the external damage coded lock, three rotatable lamellas in the lock come off easily, lose insurance function, are easy to so just coded lock to be destroyed safety cabinet is opened.The novel combination type mechanical code lock of import, size of key is big, safety performance height, but manufacture process requirement height, domestic production producer is difficult to produce and the price height, and the customer is difficult to accept.

The purpose of this utility model provides a kind of novel structure, and Electronic Control and frame for movement are combined dexterously, the safety cabinet coded lock that size of key is big and safety performance is high.

The technical solution of the utility model is: a kind of safety cabinet coded lock, comprise the mechanical cipher device, compound dead bolt device, power supply and control circuit for electromagnet, above-mentioned mechanical cipher device comprises the dial handle, fixed disc, digital disk, the active rotor, the first passive rotor, second passive rotor and the turning cylinder, be equipped with two permanent magnets in the front of active rotor, the vertical rotor of its magnetic pole plane, be equipped with a permanent magnet at the back side of the first passive rotor, its magnetic pole is perpendicular to the rotor plane, more than one permanent magnet holddown groove is arranged at the edge of the second passive rotor, being equipped with its magnetic pole of permanent magnet in permanent magnet holddown groove therein is the rotor radial direction, above-mentioned control circuit for electromagnet is by input latching circuit second level control circuit and three, level Four outage delay circuit constitutes, wherein, the input latching circuit is linked to each other with the positive pole of power supply E1 by the colelctor electrode of triode BGl, emitter stage links to each other with the negative pole of power supply E1 with resistance R 2 series connection backs, base stage links to each other with the end of dry-reed tube switch CKl with capacitor C 1 series connection back with resistance R 1, the other end of dry-reed tube switch CK1 links to each other with the positive pole of power supply E1, second level control circuit is by triode BG2, resistance R 3 and R4, dry-reed tube switch CK2 forms the on-off circuit of emitter-follower form, third level outage delay circuit is by triode BG3, dry-reed tube switch CK3, capacitor C 2, resistance R 5 and 16 is formed the on-off circuit of emitter-follower form, fourth stage outage delay circuit is by triode BG4, BG5, resistance R 7, capacitor C 3, dry-reed tube switch CK4, button AN1, diode D2 and electromagnet coil L1 form the on-off circuit of emitter-follower form.

Above-mentioned compound dead bolt device comprises handle device and dead bolt device, the handle device comprises handle, plectrum, sliding tray is arranged on plectrum, the dead bolt device comprises circular straight tongue and bar shaped dead bolt, be provided with two pawls at the front end of bar shaped dead bolt and collude the tongue device, the middle part is provided with the transmission nail, and the rear portion has the armature socket, wherein the transmission nail matches with sliding tray on the plectrum, and the control dead bolt moves.Two pawls collude the tongue device by preceding colluding pawl, and back claw and return spring constitute, and precedingly collude pawl and back claw is combined as a whole by draw-barring, and return spring is preceding colluding between pawl and the back claw.

In the armature socket of bar shaped dead bolt, be equipped with armature, outside the armature socket, be equipped with an armature guard shield.

Described fixed disc is positioned at the outside of digital disk, and having the digital peep hole back side on the surface of fixed disc has the screw blind hole.

The rear end of described turning cylinder connects mutually with the active rotor, and front end connects mutually with the turning cylinder support, has the screw that links with the door body on the turning cylinder support.

The utility model has following advantage:

1, frame for movement and Electronic Control are combined to reach size of key big and safety performance is high.

The utility model is being led, is being set up permanent magnet on the passive rotor, the realization make-break operation that can combine with the dry-reed tube switch of electronic control part of this permanent magnet, thereby reach machinery sign indicating number and electronics sign indicating number can be set simultaneously on same master, passive rotor, the size of key of this coded lock is exactly the combined amount of machinery sign indicating number and electronics sign indicating number so.The electronic control circuit of this coded lock has the time limit function, and requirement must successively could be opened password good electronics sign indicating number and machinery sign indicating number in the time that limits.The auto-lock function of electronic circuit requires once success of operation, otherwise continued operation is unblanked.So also just make the robber not fill the surplus time and try to dial decoding.Simultaneously, because armature is inserted dead bolt extremely, also can't try to dial decoding.

2, can prevent effectively that instruments such as electric drill, abrasive machine from destroying coded lock from the outside.

Since the utility model with three masters of Old Password lock, passive rotor by screw from cabinet outdoors the mode that connects of portion change into from cabinet door inner Join, simultaneously, the digital disk of Old Password lock is positioned at the fixed disc outside to be changed digital disk into and is positioned at fixed disc inside, even the burglar also can't take away coded lock destruction rotatable lamella with boring from the door body like this, can reach good antitheft purpose.

3, the armature of this utility model electromagnet is in the closed system, in any direction all armature can't be transferred to from the dead bolt jack, and dead bolt just can not move, and can not be opened to guarantee door.

Below in conjunction with drawings and Examples the utility model is described in further detail:

Fig. 1 is the utility model structural representation;

Fig. 2 is a handle apparatus structure schematic diagram;

Fig. 3 is a dead bolt apparatus structure schematic diagram;

Fig. 4 colludes tongue apparatus structure schematic diagram for two pawls;

Fig. 5 is a Bar lock tongue structure schematic diagram;

Fig. 6 is the sectional view of Fig. 5 at the A-A face;

Fig. 7 is control circuit for electromagnet figure;

Fig. 8 has standby group control circuit for electromagnet figure.

Structure of the present utility model such as Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, shown in Figure 6, comprise the mechanical cipher device, compound dead bolt device, wherein the mechanical cipher device comprises dial handle 1, fixed disc 2, digital disk 3, initiatively rotor 4, the first passive rotor 5, the second passive rotor 6, turning cylinder 7, active rotor 4 the front be equipped with

permanent magnet

10 and 32, its magnetic pole is perpendicular to the rotor plane, be equipped with permanent magnet 11 at the back side of the first passive rotor 5, its magnetic pole has more than one permanent magnet holddown groove 28 perpendicular to the rotor plane at the edge of the second passive rotor 6, be equipped with permanent magnet 12 in a permanent magnet holddown groove therein, its magnetic pole is the rotor radial direction.Compound dead bolt device package handle device and dead bolt device, the handle device comprises handle 14, plectrum 15, sliding tray 16 is arranged on plectrum 15, the dead bolt device comprises circular straight tongue 17 and bar shaped dead bolt 18, is provided with two pawls at the front end of bar shaped dead bolt 18 and colludes the tongue device, and the middle part is provided with transmission nail 20, the rear portion has armature socket 21, is inserted with the armature 36 of available electron circuit control adhesive in armature socket 21.Wherein transmission nail 20 matches with sliding tray 16 on the plectrum 15, can control compound dead bolt.Two pawls collude the tongue device and constitute by preceding colluding pawl 22, back claw 23 and return spring 24, precedingly collude pawl 22 and back claw 23 is combined as a whole by draw-barring 25, and return spring 24 is preceding colluding between pawl 22 and the back claw 23.Armature socket 21 places at bar shaped dead bolt 18 are equipped with armature guard shield 26.

The recited above pair of pawl colludes the tongue device and door firmly can be colluded with cabinet and be in the same place, and the pick-proof of cabinet is anti-to be pounded function and improve greatly thereby make.

Above-mentioned fixed disc 2 is positioned at the outside of digital disk 3, have digital peep hole on the surface of fixed disc 2, there is the screw blind hole at the back side, and this structure can fix fixed disc 2 from the door inboard with screw, thereby can avoid the burglar with instruments such as electric drills lock body to be destroyed.

The rear end of above-mentioned turning cylinder 7 connects mutually with active rotor 4, front end connects mutually with swinging mounting 8, on turning cylinder support 8, have the fixing hole 9 that links with the door body, this structure is changed the rotatable lamella that Old Password is locked, is cabinet door inner Join by screw from outer type, be easy to the drawback just rotatable lamella taken away thereby can overcome the burglar after with the external damage of electric drill, thereby the safety performance of this safety lock is further improved lock.

Control circuit for electromagnet of the present utility model as shown in Figure 7.It is by the input latching circuit, second level control circuit and three, level Four outage delay circuit constitutes, wherein the input latching circuit is linked to each other with the positive pole of power supply E1 by the colelctor electrode of triode BG1, emitter stage links to each other with the negative pole of power supply E1 with resistance R 2 series connection backs, base stage links to each other with the end of dry-reed tube switch CK1 with capacitor C 1 series connection back with resistance R 1, the other end of dry-reed tube switch CK1 links to each other with the positive pole of power supply E1, second level control circuit is by triode BG2, dry-reed tube switch CK2, resistance R 3 and R4 form the on-off circuit of emitter-follower form, third level outage delay circuit is by triode BG3, dry-reed tube switch CK3, capacitor C 2, resistance R 5 and R6 form the on-off circuit of emitter-follower form, fourth stage outage delay circuit is by triode BG4, BG5, resistance R 7, capacitor C 3, dry-reed tube switch CK4, button AN1, diode D2 and electromagnet coil L1 form the on-off circuit of emitter-follower form.

The course of work of the present utility model is as follows:

When stirring dial handle 1 with hand, drive digital disk 3 and initiatively rotor 4 rotations, initiatively rotor 4 drives the second passive rotor by transmission screw 29, the second passive rotor 6 drives the first passive rotor 5 by transmission screw 30 again and rotates, when digital disk 3 forwards electronic cipher the 1st number of setting to, permanent magnet 11 correspondences of dry-reed tube switch CK1 and its configuration, dry-reed tube switch CK1 connects, this, capacitor C 1 was equivalent to short circuit moment, electric current makes triode BG1 saturation conduction by current-limiting resistance R1 to triode BG1 and resistance R 2 immediately, capacitor C 1 begins charging subsequently, capacitor C 1 both end voltage is pressed index law and is risen, triode BG1 enters magnifying state by saturation state, the base voltage UE of triode BG1 from large to small, the base voltage UE ≈ 0 of triode BG1 when capacitor C 1 is full of electric charge, whether no matter open reed pipe switch CK1 this moment disconnects, the base stage no current of triode BG1 is that capacitor C 1 has been sealed input, the self-locking action of capacitor C that Here it is 1, have only capacitor C 1 slow discharge off, capacitor C 1 branch road could lead to again.Be the Blackout period of the first order input discharge time of capacitor C 1.When digital disk 3 forwards electronics sign indicating number the 2nd number of setting to, permanent magnet 12 corresponding connections of dry-reed tube switch CK2 and its configuration, when digital disk 3 forwards electronics sign indicating number the 3rd number of setting to, permanent magnet 10 corresponding connections of dry-reed tube switch CK3 and its configuration, when digital disk 3 forwards electronics sign indicating number the 4th number of setting to, permanent magnet 32 corresponding connections of dry-reed tube switch CK4 and its configuration, require the second level, the dry-reed tube switch CK2 of these three grades of circuit of the third level and the fourth stage, CK3 and CK4 must connect in the period of saturation of triode BG1, this just requires the person of unblanking not only to know password but also operation wants quick, one connects dry-reed tube switch CK2, the period of saturation that the time sum of CK3 and CK4 surpasses triode BG1 must bear with the first order and spend the Blackout period again by dry-reed tube switch CK1, CK2, CK3 and CK4 connect in turn, when the dry-reed tube switch CK4 in the fourth stage connects, electromagnet coil L1 gets electric adhesive armature 36 and sucks back from armature socket 21, compound dead bolt could move with handle 14, and electromagnet coil L1 leans on capacitor C 3 discharges to keep after the base voltage UE of triode BG3 descends pickup time.The operation of mechanical cipher must be finished in the adhesive phase at electromagnet coil L1, otherwise waits first order operation in tandem by electronic cipher and mechanical cipher after the Blackout period again.In order to prevent the generation of fortuitous event, also be provided with a stand-by circuit.Its circuit as shown in Figure 8, standby group of circuit is identical with group circuit commonly used, just because the position of dry-reed tube switch CK5, CK6, CK7, CK8 is different with dry-reed tube switch CK1, CK2, CK3, CK4 respectively, so standby group of password with commonly used organize different.

Standby group of circuit uses under following three kinds of situations:

1, group circuit commonly used hinders inefficacy for some reason.

2, owner forgets the password of group commonly used for a certain reason, and can't avoid the Blackout period and must open safety cabinet again at once this moment, presses the AN2 switch power supply is received on standby group, opens the door by standby group of password.

3, check the working condition of once standby group circuit at set intervals.

Click the AN1 button at every turn when locking a door, allow the armature adhesive, this moment, dead bolt was free to rotate.

This coded lock is not only applicable to safety cabinet, can also be used for places such as national treasury door, file cabinet door, important warehouse door.

Claims

1, a kind of safety cabinet coded lock, comprise the mechanical cipher device, compound dead bolt device, power supply and control circuit for electromagnet, it is characterized in that: above-mentioned mechanical cipher device comprises dial handle (1), fixed disc (2), digital disk (3), active rotor (4), the first passive rotor (5), the second passive rotor (6) and turning cylinder (7), front at active rotor (4) is equipped with permanent magnet (10,32), its magnetic pole is equipped with a permanent magnet (11) perpendicular to the rotor plane at the back side of the first passive rotor (5), its magnetic pole is perpendicular to the rotor plane, at the edge of the second passive rotor (6) more than one permanent magnet holddown groove (28) is arranged, being equipped with its magnetic pole of permanent magnet (12) in permanent magnet holddown groove therein is the rotor radial direction, above-mentioned control circuit for electromagnet is by the input latching circuit, second level control circuit and three, level Four outage delay circuit constitutes, wherein, the input latching circuit is linked to each other with the positive pole of power supply E1 by the colelctor electrode of triode BG1, emitter stage links to each other with the negative pole of power supply E1 with resistance R 2 series connection backs, base stage links to each other with the end of dry-reed tube switch CK1 with capacitor C 1 series connection back with resistance R 1, the other end of dry-reed tube switch CK1 links to each other with the positive pole of power supply E1, second level control circuit is by triode BG2, resistance R 3 and R4, dry-reed tube switch CK2 forms the on-off circuit of emitter-follower form, third level outage delay circuit is by triode BG3, dry-reed tube switch CK3, capacitor C 2, resistance R 5 and R6 form the on-off circuit of emitter-follower form, fourth stage outage delay circuit is by triode BG4, BG5, resistance R 7, capacitor C 3, dry-reed tube switch CK4, button AN1, diode D2 and electromagnet coil L1 form the on-off circuit of emitter-follower form.

2, safety cabinet coded lock according to claim 1, it is characterized in that: above-mentioned compound dead bolt device comprises handle device and dead bolt device, the handle device comprises handle (14), plectrum (15), sliding tray (16) is arranged on plectrum (15), the dead bolt device comprises circular straight tongue (17) and bar shaped dead bolt (18), being provided with two pawls at the front end of bar shaped dead bolt (18) colludes tongue device middle part and is provided with transmission nail (20), the rear portion has armature socket (21), wherein transmission nail (20) matches with sliding tray (16) on the plectrum (15), two pawls collude the tongue device by preceding colluding pawl (22), back claw (23) and return spring (24) constitute, before collude pawl (22) and back claw (23) is combined as a whole by draw-barring (25), collude between pawl (22) and the back claw (23) before return spring (24) is positioned at.

3, safety cabinet coded lock according to claim 2 is characterized in that: be equipped with armature (36) in the armature socket (21) of bar shaped dead bolt (18), be equipped with an armature guard shield (26) outside armature socket (21).

4, safety cabinet coded lock according to claim 1 is characterized in that: described fixed disc (2) is positioned at the outside of digital disk (3), has digital peep hole on the surface of fixed disc (2), and there is the screw blind hole at the back side.

5, safety cabinet coded lock according to claim 1 is characterized in that: the rear end of described turning cylinder (7) connects mutually with active rotor (4), and front end connects mutually with turning cylinder support (8), has the screw (9) that links with the door body on turning cylinder support (8).