CN2830590Y

CN2830590Y - Overtime warning locking device for lock

Info

Publication number: CN2830590Y
Application number: CN 200520052511
Authority: CN
Inventors: 贺哲丰; 贺明
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-11-18
Filing date: 2005-11-18
Publication date: 2006-10-25
Anticipated expiration: 2015-11-18

Abstract

The utility model relates to an overtime warning locking device for a lock. The utility model is suitable for an anti-theft door and a strongbox. The utility model is composed of a lock hole cover plate, a spring, a control switch, an overtime alarm circuit, an electromagnet, a pin bolt, a lock body, a lock core, a lock core cover and a protective cover plate, wherein the lock hole cover plate which is arranged in front of the lock core and is linked with the control switch is the passing position of a key. When unlocking, the lock hole cover plate needs to be firstly pushed away and the overtime alarm circuit is switched on. The utility model uses the critical distinction the required lime for unlocking in a theft mode is longer than the unlocking required lime of the original matching key, the utility model realizes overtime alarm by setting appropriate time delay triggering time and the lock core is locked. The utility model can also duly remind when owners forgot to draw out keys.

Description

Lock with overtime warning locking device

Technical field

The utility model relates to a kind of lock with overtime warning locking device.

Technical background

The related standards regulation: qualified if the lock that was not opened in 15 minutes without original key is, that is to say: most of locks can be opened with various technology unlocking methods, are the problem of length consuming time.The report of " lawless person adopt technology unlocking method enter the room crime " is often arranged on the various medium, report that some place has unlocking tool to sell unexpectedly.If the lawless person has grasped the technology unlocking method, will constitute very big threat to people's lives and properties.So the twice security door has just been pacified by the family that has; Also the somebody has been installed protective cover additional at the lockhole place of security door, and a removable cover that can be pinned by coded lock is arranged in this protective cover.Though these methods can play certain preventive effect, concerning the people who understands the technology unlocking method, also only need to open one lock more.The alarm of principles such as adopting capacitive sensing, infra-red detection, ultrasonic wave is also arranged now, but almost can not see the security door of being furnished with this class alarm on the market.And the people that this class alarm can't be differentiated outdoors mostly is: just the lawless person of pirate of the open lock, or sanitationman who is working or maintenance mans, cause false alarm easily.In addition, indivedual careless owners forget after unblanking and extract key, have also stayed opportunity to the lawless person, have stayed future trouble to oneself.

Summary of the invention

Order of the present utility model is to overcome above-mentioned defective, provides a kind of lock with overtime warning locking device; Promptly attempting the pirate of the open lock as the people time can report to the police and lock lock core, forget the warning locking device that can in time remind when extracting key as the owner.

The technical solution of the utility model is to utilize: the technology unlocking required time is than the difference of the long this point key of required time of unblanking with original key, realizes the function of overtime warning and locking lock core by setting the suitable time-delay triggered time.Lock is to comprise shield plate, Lock cylinder cover, lock core, lock body, locking bolt and warning circuit with overtime warning locking device, it is characterized in that: be provided with the lockhole cover plate in the overtime warning locking device, work spring that resets and circuit box with overtime warning function, promptly between shield plate and lock core, key must be provided with through part and be used to hide lockhole cover plate lockhole, that can move or rotate, its lockhole cover plate one end contacts with gauge tap in the warning circuit and links with gauge tap; Spring one end is fixed, and the other end is pressed on the lockhole cover plate, and there is a pin-and-hole that does not communicate with lockhole the side of lock core.

Warning circuit in the circuit box is overtime warning circuit, it comprises switch, time-base integrated circuit, the warning integrated circuit, triode, relay, loudspeaker and power supply, electromagnet, its electromagnet is arranged on the lock body, gauge tap is arranged between shield plate and the lock body, electromagnet links to each other with circuit box by two leads with gauge tap, by time-base integrated circuit, variable resistor R1, R2, capacitor C 1, C2, C3, C4, diode constitutes time-delay and triggers monostable circuit, the input of time-base integrated circuit is that the time-delay of adopting variable resistor R1 and capacitor C 1 to form triggers the RC circuit, and the RC circuit is controlled by gauge tap.

The lockhole cover plate be hole with lock L shaped cross section metal sheet or be 1/2 lockhole size, have the thin bar of tail shape, tiltedly carve the metal sheet in shape cross section, perhaps for match with the lockhole size, can be around the circular metal plate of a rotation.

Gauge tap is button microswitch or correlation optoelectronic switch or tongue tube or magnetic switch; The normal resistance of variable resistor R1 is that 10K, capacitor C 1 value are 1000 μ F.

The lockhole cover plate is contained in before the lock core, within the protective cover, be that key must be through part, the one end contacts with gauge tap, to realize and the gauge tap interlock that it is in the state of sealing keyhole or trend sealing keyhole all the time under the effect of spring.Must push the lockhole cover plate earlier open when key inserts lockhole, also just promote gauge tap, connected overtime warning circuit, pick up counting but can not report to the police this moment; If the lockhole cover plate resets in the given time, the gauge tap of being controlled by the lockhole cover plate can disconnect, so can not trigger warning; If the lockhole cover plate does not also reset at the fixed time, overtime warning circuit will be triggered and send chimes of doom, electromagnet energising simultaneously produces suction, pin is pushed in the pin-and-hole of lock core, lock core can not be rotated and lock, and this state will be sustained, up to the reset button of pressing overtime warning circuit or with the lockhole cap sheet reset; In case lockhole cap sheet reset, overtime warning circuit stopped to report to the police after a period of time of delaying time again, recovered the monostable state, electromagnet resets, removes the lock-out state of lock core because of outage.

The utility model adopts when being fit to transform existing security door, strongbox respectively or making lock, and is widely applicable.The utility model has the advantages that: only the time just can report to the police and lock lock core there being the people to attempt the pirate of the open lock, avoid the false alarm that triggers because of factors such as someone outdoors work, also have the function that the prompting owner in time extracts key simultaneously.

Description of drawings

Fig. 1 is circuit theory diagrams of the present utility model;

Fig. 2 is the cross-sectional schematic of the utility model embodiment 1;

Fig. 3 is the decomposing schematic representation of the utility model embodiment 1;

Fig. 4 is the cross-sectional schematic of the utility model embodiment 2;

Fig. 5 is the decomposing schematic representation of the utility model embodiment 2.

The specific embodiment

Referring to Fig. 1, circuit part of the present utility model mainly by: power supply DC1, reset button SB1, gauge tap SB2, time-base integrated circuit IC1, warning IC 2, triode VT, relay K, loudspeaker BL and power supply DC2, electromagnet L etc. form.Wherein: constitute time-delay by time-base integrated circuit IC1, variable resistor R1, R2, capacitor C 1, C2, C3, C4, diode VD1 and trigger monostable circuit, it forms the delay time that the RC circuit is controlled its triggering by variable resistor R1 and capacitor C 1, forms the RC circuit by variable resistor R2 and capacitor C 2 and controls the delay time that it resets; Gauge tap SB2 is that the moving disconnection of normal open type is closed, and because of the lockhole cover plate it is depressed at ordinary times to be in off-state, and it is in on-state when pushing the lockhole cover plate open; Reset button SB1 is a combined switch that contains break contact and moving together contact, with deenergization DC1, and makes capacitor C 1 the two poles of the earth short circuit when pressing reset button SB1; Warning IC 2 can produce the alarm signal of sawtooth waveforms; Triode VT is used for amplifying alarm signal; Loudspeaker BL is used for sending alarm sound; Relay K is the break-make that is used for controlling electromagnet L; Resistance R 5 and capacitor C 5 be big according to the starting current of electromagnet L, keep that the little characteristics of electric current are provided with; Diode VD1, VD2 are used for and relay K or electromagnet L constitute the loop, and the induced electromotive force that produces when preventing the inductance element outage damages electronic component.

Embodiment 1: referring to Fig. 2 and Fig. 3, the utility model comprises: shield plate 1, the super circuit box 2 of reporting to the police of band, gauge tap SB2, lockhole cover plate 3, spring 4, Lock cylinder cover 5, lock core 6, lock body 7, pin 8 and electromagnet L form.Described lockhole cover plate 3 be a centre lockhole is arranged, be welded with a push rod, the cross section is L shaped metal sheet, it is contained in before the Lock cylinder cover 5, can slides up and down at the inner surface of shield plate 1, is in the state that obturator hernia or trend are closed obturator hernia that closes under the effect of spring 4 all the time; When being in pass obturator hernia state, it gauge tap SB2 can be depressed the RC circuit that off delay triggers.Spring 4 is cylindrical stage clips, and the one end is fixed, the other end is pressed on the lockhole cover plate 3, the frictional force when its elastic force should be able to overcome lockhole cover plate 3 and slides and gauge tap SB2 can also being depressed, and size is about 10N.There is a pin-and-hole obstructed with lockhole the side of lock core 6.Lock body 7 is used for installing lock core 6, and also there is a pin-and-hole that communicates with the pin-and-hole of lock core 6 side.Electromagnet L adopts the safe voltage that is lower than 36V, can hold armature during energising.Lock cylinder cover 5 is stainless steel covers that are used for protecting lock core 6, and there is the keyhole of a key shape on its surface.Shield plate 1 is the rectangle crown cap that is used for protecting lock body 7, the groove that its surface has a round keyhole that can lead to lock core 6 and to be used for allowing the push rod of lockhole cover plate 3 slide up and down.

Must promote the push rod on the lockhole cover plate 3 earlier when key inserts lockhole, also just unclamp gauge tap SB2, connected overtime warning circuit, pick up counting but can not report to the police this moment; If lockhole cover plate 3 resets in the given time, the gauge tap SB2 that links with lockhole cover plate 3 can disconnect, so can not trigger warning; If lockhole cover plate 3 does not also reset at the fixed time, overtime warning circuit will be triggered and send chimes of doom, electromagnet L energising simultaneously produces suction, with pin 8 via the pin-and-hole on the lock body 7, push in the pin-and-hole of lock core 6, lock core 6 can not be rotated and lock, and this state will be sustained, and reset up to the reset button SB1 that presses overtime warning circuit or with lockhole cover plate 3; In case lockhole cover plate 3 resets, overtime warning circuit stopped to report to the police after a period of time of delaying time again, recovered the monostable state, and electromagnet L resets because of outage, removes the lock-out state of lock core.Trigger warning because lockhole cover plate 3 can not reset when the owner forgets when extracting key, in time remind the owner to extract key.

Embodiment 2: referring to Fig. 4 and Fig. 5, it comprises: shield plate 1, circuit box 2, gauge tap SB2, lockhole cover plate 3, spring 4, Lock cylinder cover 5, lock core 6, lock body 7, pin 8 and electromagnet L form.Be not both with 1 of embodiment: its lockhole cover plate 3 is one and is about lockhole 1/2 size, cross section for tiltedly carving the metal sheet of shape, it be contained in lock core 6 upper surfaces, within Lock cylinder cover 5, rather than be contained in the inner surface of shield plate 1; Electromagnet L is directly installed in the breach of lock body 7 in addition, the most of part of the present utility model that made the lock body upper set so that the manufacturing structure compactness, possess and report to the police and the lockset of lock function.When key inserts lockhole, will run into lockhole cover plate 3 and stop that the thrust of key will promote lockhole cover plate 3 and remove, and also just connect overtime warning circuit downwards on the inclined-plane of lockhole cover plate 3.The course of work of present embodiment and embodiment 1 are identical, therefore repeat no more.

If gauge tap SB2 adopts the optoelectronic switch of correlation, or magnetic control switches such as tongue tube, mercoid switch, then can constitute the embodiment of various ways, its course of work is substantially the same manner as Example 1.

Claims

1, a kind of lock is with overtime warning locking device, and it comprises shield plate (1), Lock cylinder cover (5), lock core (6), lock body (7), locking bolt (8) and warning circuit, it is characterized in that:

Be provided with the spring (4) and the circuit box (2) of lockhole cover plate (3), a reset response in A, the described overtime warning locking device, promptly between shield plate (1) and lock core (6), key must be provided with through part and be used to hide lockhole cover plate (3) lockhole, that can move or rotate, its lockhole cover plate (3) one ends contact with gauge tap (SB2) in the warning circuit and link with gauge tap (SB2);

B, described spring (4) one ends are fixed, and the other end is pressed on the lockhole cover plate (3), and there is a pin-and-hole that does not communicate with lockhole the side of described lock core (6);

C, warning circuit in the described circuit box (2) is overtime warning circuit, it comprises gauge tap (SB2), time-base integrated circuit (IC1), warning integrated circuit (IC2), triode (VT), relay (K), loudspeaker (BL) and power supply (DC1, DC2) and electromagnet (L), its electromagnet (L) is arranged on the lock body, gauge tap (SB2) is arranged between shield plate (1) and the lock body (7), electromagnet (L) links to each other with circuit box (2) by two leads with gauge tap (SB2), by time-base integrated circuit (IC1), variable resistor (R1, R2), electric capacity (C1, C2, C3, C4), diode (VD1) constitutes time-delay and triggers monostable circuit, the input of time-base integrated circuit (IC1) is that the time-delay of adopting variable resistor (R1) and electric capacity (C1) to form triggers the RC circuit, and described RC circuit is controlled by gauge tap (SB2).

2, lock according to claim 1 is with overtime warning locking device, it is characterized in that lockhole cover plate (3) for metal sheet hole with lock, L shaped cross section or be 1/2 lockhole size, have the thin bar of tail shape, tiltedly carve the shape cross section metal sheet or for match with the lockhole size, can be around the circular metal plate of a rotation.

3, lock according to claim 1 is characterized in that with overtime warning locking device described gauge tap (SB2) is button microswitch or correlation optoelectronic switch or tongue tube or magnetic switch.