CN2515383Y

CN2515383Y - Electronic theft-proof lock

Info

Publication number: CN2515383Y
Application number: CN 02201806
Authority: CN
Inventors: 戴榜恩
Original assignee: DAI BANG'EN
Current assignee: DAI BANG'EN
Priority date: 2002-01-01
Filing date: 2002-01-01
Publication date: 2002-10-09
Anticipated expiration: 2012-01-01

Abstract

The utility model relates to a building intercommunication (picture) system electronic anti-theft lock, which comprises a lock body which is mounted on the inner side of a door frame, a marble tapered end in the outer side of the door frame, and a hasp which is equipped on a door, the lock body is composed of a control device which is melted on a printing circuit board, and an actuating mechanism which comprises a coil, an armature iron, an iron corn, a connecting bar, a spring and a bolt. The control device comprises an unlocking and time-delay circuit, unlocking sound prompting circuit, a photoelectric switch, an automatic door-controlling control circuit, a time-delay circuit, and a drive circuit. A lock can be controlled to unlock by unlocking and time-delay circuit which is added by that an unlocking signal on a user extension telephone, and an unlocking signal which is given by a bolt of a marble tapered end which is used as a deflector rod, or a microswitch which is controlled by an outside unlocking button on the right side of the lock body. Because the closing a door speed of the lock can extremely slow, noise which is caused by impacting when closing a door can be eliminated, and further the shortcoming that an electromagnetic lock must be driven by power is overcome. An appearance of the lock is nearly the same with a mechanical electric control lock, and locks which are mounted on an anti-theft door have interchangeability. The utility model has the advantages of little mechanic parts in a lock, simple structure, which is cheaper than an electromagnetic lock.

Description

Electronic safety lock

1, technical field:

The utility model relates to the safe antitheft lockset, especially is fit to the electronic safety lock that building talkback (visual) system or other security doors are used.

2, background technology:

At present the security door of building talkback (visual) system generally uses two kinds of mechanical electric control lock and electromagnetic locks.The machinery electric control lock produces impact noise because of the bigger speed of closing the door of needs, and also there was a mechanical failure easily.Electromagnetic lock does not have impact noise, but must have electricity just can lock a door, and obviously reduces owing to electromagnetic attraction during brownout, even can't lock door.And the price height of electromagnetic lock.

The utility model purpose is the shortcoming that overcomes above-mentioned two kinds of locks, designs the more simple theftproof lock of a kind of structure.

3, summary of the invention:

The purpose of this utility model is achieved by the following technical programs.

This building talkback (visual) system security door electronic safety lock, comprise the lock body that is installed in the doorframe inboard, the ball lock head in the doorframe outside and be installed in snap close on the door is characterized in that: the front of the lock body unlock button of going out has controller and executing agency two partly in the lock body.

Controller is by unblanking and delay circuit, the auditory tone cues electric circuit of unblanking, optoelectronic switch, and automatic locking gate control circuit, delay circuit and drive circuit etc. are partly formed.Optoelectronic switch (9) is through resistance R ₁, R ₂Ea joins with power supply, and the phototriode colelctor electrode in the optoelectronic switch (9) is connected to the resistance R in the automatic locking gate control circuit ₃, R ₅The other end be connected to transistor Q ₁Base stage, Q ₁Colelctor electrode link to each other Q with diode D with power supply Ea through relay (J) ₁Emitter stage and the normally closed contact of relay (J) ground connection all.The changeover contact of relay (J) is through resistance R ₄Meet power supply Ea and meet transistor Q through capacitor C ₂Base stage, Q ₂Base stage also through resistance R ₅Ea joins with power supply, Q ₂Emitter stage meet power supply Ea, Q ₂Colelctor electrode through resistance R ₆Ground connection, Q ₂The colelctor electrode output signal be connected to delay circuit, drive circuit.

Executing agency is by coil (23), armature (22), and iron core (25), connecting rod (11), spring (12) and latch (10) are formed.It is characterized in that adopting twin coil (23), double armature (22) and double-iron core (25), two coils (23) are connected in series, a termination dc source anode of coil (23), the output of another termination drive circuit.

The utility model has overcome mechanical electric control lock impact noise at closing time, and having overcome electromagnetic lock does not have the shortcoming that electricity can not be locked a door yet.And the installation on security door and mechanical electric control lock have interchangeability.Machine components are few, simple in structure in the lock, and price is cheaper than electromagnetic lock.

4, description of drawings:

The utility model has the following drawings:

Figure one electronic anti-theft is locked in scheme of installation on the security door;

Figure two electronic safety lock lock body cut-away views;

Figure three executing agency's structure charts;

Figure quadrielectron theftproof lock operating principle block diagram;

Figure five optoelectronic switches and automatic locking gate control circuit figure.

5, the specific embodiment:

The contrast accompanying drawing is made an explanation to the utility model in conjunction with the embodiments below:

This embodiment electronic safety lock comprises being installed in the inboard lock body (5) of doorframe (2) ball lock head (3) in doorframe (2) outside and the snap close (4) on the door (1).Lock body (5) comprises the end (6) and lid (7), the unlock button (8) of going out on the lid (7).

There is printed circuit board (PCB) (13) on (6) the interior left side, the end, has welded about 70 of whole electronics unit, the device of controller on the printed circuit board (PCB) (13).Be printed on 12 in the front of four-core connector assembly on the printed circuit board (PCB) ^V"+" "-" and " L+ " " L-" join wherein 12 through through wires holes (20) and outside with four leads ^V"+" "-" be connected to the power source special case, " L+ " " L-" receives on " unblanking " switch on intercommunication (visual) extension set of user family.

There is an optoelectronic switch (9) lower left of printed circuit board (PCB) (13), joins with three leads and printed circuit board (PCB) (13).Microswitch (18) is connected to printed circuit board (PCB) (13) with two leads.

Executing agency is by coil (23), armature (22), and iron core (25), connecting rod (11), spring (12) is formed with latch (10).Armature (22) links to each other with latch (10) by connecting rod (11).Be with spring (12) on the connecting rod (11).Two coils (23) adopt series connection, and the series connection back is two ends one termination power anode in addition, the output of another termination drive circuit.Coil adopts the QZ-I enamel-covered wire, encloses around 600 with φ 0.55.

Specific implementation method is as follows:

5.1 unblank:

Security door (1) mortise lock (10) when being locked is inserted in the snap close (4), can draw (pushing away) to open with security door (1) after mortise lock (10) must being retracted in the lock body (5) when driving security door (1).

5.1.1 remote-control unlocking:

When the guest comes to visit, press " unblanking " button on the intercommunication that owner stays at home (visual) extension set, promptly there be " unlocking signal " to be added to printed circuit board (PCB) (13) " unblanking and delay circuit " through cable, give coil (23) power supply through drive circuit, coil (23) produces electromagnetic attraction with armature (22) adhesive, the elastic force that armature (22) overcomes spring (12) is retracted to latch (10) in the lock body (5) by connecting rod (11), can draw (pushing away) to open with security door (1).

" unblank and delay circuit " when unlocking signal is added to " drive circuit ", also to add to " auditory tone cues electric circuit of unblanking " generation " tick---, drip---... " voice prompt of having unblanked.Unlocking signal is delayed time about 5 seconds, promptly latch (10) be retracted to time in the lock body (5) be about 5 seconds after coil (22) be de-energized, electromagnetic attraction disappears, the elastic force of spring (12) is released latch (10) outside the lock body (5), prompting sound also stops.

5.1.2 key unlocking:

When owner enters key is inserted in the ball lock head (3), the clockwise dead bolt (1 6) that turns an angle drives rotating disk (17) and rotates, to promote the move right stage clip (19) of depressing microswitch (18) of pressing plate (15) microswitch (18) is connected, provide that " unlocking signal is identical with (5.1.1) to its course of work of " unlock circuit " back.

Unblank 5.1.3 go out:

The button (8) that clicks when going out on the lid (7) is connected microswitch (18), and its course of work is identical with (5.1.2).

5.2 lock a door automatically:

Promptly stretched automatically time in about 5 seconds that latch (10) was retracted in the lock body (5) after security door was unblanked, and will lock a door after go out (or entering) to make latch (10) be retracted in the lock body (5) once more, and this process must be finished automatically.

At closing time, when security door (1) forwards to when making snap close (4) to the position of optoelectronic switch (9), the infrared light of infrarede emitting diode in the optoelectronic switch (9) emission is promptly reflexed on the phototriode of optoelectronic switch (9) by snap close (4) and makes the phototriode conducting, and the phototriode conducting makes transistor Q ₁Base voltage is zero, triode Q ₁End, relay (J) disconnects, and normally closed point is connected the unexpected ground connection of left end that makes capacitor C, triode Q ₂Base stage obtains a negative pulse input, Q ₂Positive pulse of colelctor electrode output, this pulse signal is given coil (23) power supply through " delay circuit " " drive circuit ", armature (22) adhesive is retracted in the lock body (5) latch (10), door shuts back coil (23) outage, latch (10) is released by spring (12) and is inserted in the snap close (4), and door is locked.

Latch (10) ST length can be by the potentiometer adjustment in " delay circuit ".Distance about 25 when the position that the snap close (4) from security door (1) forwards optoelectronic switch (9) to door shuts ^MmDoor closer is low because of winter temperature, and inner oil viscosity is big, and the speed of closing the door is slow, with 10 ^Mm/ second calculate, need 2.5 seconds approximately, adjust in use and generally be decided to be about 4 seconds.

5.3 opening the door and locking a door during outage:

Do not open the door and lock a door by following method when under special circumstances, having power supply:

When entering key is inserted into ball lock head (3), clockwise changes about 90 ° and can open the door, and after entering the pull bar (21) of lock body (5) right-hand member is turned right to draw back latch (10) to be retracted in the lock body (5) shut up the door carefully, can lock a door.

When going out with above-mentioned opposite carrying out.

Claims

1, a kind of building talkback (visual) system security door electronic safety lock comprises the lock body (5) that is installed in the doorframe inboard, the ball lock head (3) in the doorframe outside and be contained in snap close (4) on the door.It is characterized in that: the front of lock body (5) unlock button (8) of going out, controller and executing agency's two parts are arranged in the lock body (5),

Controller is by unblanking and delay circuit, the auditory tone cues electric circuit of unblanking, and optoelectronic switch, the automatic locking gate control circuit, compositions such as delay circuit and drive circuit, optoelectronic switch (9) is through resistance R ₁, R ₂Ea joins with power supply, and the phototriode colelctor electrode in the optoelectronic switch (9) is connected to the resistance R in the automatic locking gate control circuit ₃, R ₃Another termination transistor Q ₁Base stage, Q ₁Colelctor electrode link to each other Q with diode D with power supply Ea through relay (J) ₁Emitter stage and the normally closed contact of relay (J) ground connection all, the changeover contact of relay (J) is through resistance R ₄Meet power supply Ea, be connected to transistor Q through capacitor C again ₂Base stage, Q ₂Base stage also through resistance R ₅Ea joins with power supply, Q ₂Emitter stage and power supply Ea join Q ₂Colelctor electrode through resistance R ₆Ground connection, Q ₂The colelctor electrode output signal be connected to delay circuit, drive circuit,

Executing agency is by coil (23), armature (22), iron core (25), connecting rod (11), spring (12) and latch (10) are formed, and it is characterized in that twin coil (23), double armature (22) and double-iron core (25), two coils are connected in series, coil one termination dc source anode, and the other end is connected to the output of drive circuit.