CN201141238Y

CN201141238Y - Lock with anti-theft warning function

Info

Publication number: CN201141238Y
Application number: CNU2007201704784U
Authority: CN
Inventors: 梁伟基
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-11-02
Filing date: 2007-11-02
Publication date: 2008-10-29
Anticipated expiration: 2017-11-02

Abstract

The utility model provides an antitheft lock with warning function, comprising a lock tongue, a hardware crest slab used to lock the lock tongue when the pole of the lock tongue is moved to the outside of the lock, a first trigger switch arranged on the lock tongue inside the lock, and a trigger circuit which is electrically connected with the first trigger switch and can give warning signals. The contact of the trigger switch is disposed at the back end of the pole of the lock tongue or at the back end of the plate of the lock tongue. Provided with the trigger switch and the rigger circuit which is electrically connected with the first trigger switch and can give warning signals inside, the antitheft lock can give an alarm by conducting the trigger circuit when the lock is opened by force.

Description

The lock that has anti-theft alarm function

Technical field

The utility model relates to a kind of lock, relates in particular to a kind of lock that has anti-theft alarm function.

Background technology

Shown in Fig. 1～3, prior art lock 10, comprise twin columns dead bolt 11, have sphenocephaly single-column dead bolt 12, be embedded in lock 10 fronts outer tapered end 13, be embedded in the inner lock head 14 at lock 10 back sides and be used to block when mobile outside the steering lock by revolving of key and the fixing five metals top board 15 of twin columns dead bolt 11 when twin columns dead bolt 11;

At closing time, monolock tongue 12 is fixed door, insert key outer tapered end 13 or in doors key inserted inner lock head 14 this moment without, the rotation tapered end, the lock 111 that makes twin columns dead bolt 11 moves to by five metals top board 15 outside lock and blocks, the jam plate 112 of twin columns dead bolt 11 is blocked by five metals top board 15 at this moment, and door is locked.

For such lock 10, when the lock 111 of twin columns dead bolt 11 was prized or unblanked with master key, lock 10 can be opened under the situation of no any alarm, lacks anti-theft alarm function.

The utility model content

For this reason, technical problem to be solved in the utility model is: a kind of lock that has anti-theft feature is provided, can sends alarm automatically when this lock is prized or unblanked with master key.

So, the utility model provides a kind of lock that has anti-theft alarm function, and the lock that comprises dead bolt, dead bolt is moved to five metals top board that lock is used to block dead bolt when outside, places first trigger switch on the inner dead bolt of lock and the circuits for triggering that can produce alarm signal that are electrically connected with described first trigger switch.

Wherein, described first trigger switch, its contact places the rearward end and/or described first trigger switch of described dead bolt lock, and its contact places the rearward end of described dead bolt jam plate.

Described lock can also comprise: cipher switch and place inner second trigger switch that is electrically connected with described circuits for triggering of lock, and after in running order and second trigger switch of only described cipher switch is triggered, the described circuits for triggering generation alarm signal that is connected.

Wherein, described cipher switch comprises: encryption key, decryption key, the gear that is rotated by encryption key and deciphering key control and rotated and the movable buckle plate that driven by described gear, when described encryption key is controlled described gear and is rotated and then drive described movable buckle plate and move, movable buckle plate blocks described twin columns dead bolt, when described decryption key was controlled described gear and rotated and then drive described movable buckle plate and move, movable buckle plate separated with the twin columns dead bolt.

Described circuits for triggering comprise: the triggering by described trigger switch can produce the alarm of alarm signal and be the power supply of described circuits for triggering and the power supply of described alarm.

The utility model also provides a kind of lock that has anti-theft alarm function, the lock that comprises dead bolt, dead bolt is moved to the five metals top board that is used to block dead bolt when locking the outside, second trigger switch that places lock inside, the circuits for triggering that can produce alarm signal that are electrically connected with described second trigger switch, and cipher switch, after in running order and second trigger switch of only described cipher switch is triggered, the described circuits for triggering generation alarm signal that is connected.

Described lock can also comprise: place first trigger switch on the inner dead bolt of lock, described first trigger switch is electrically connected with described circuits for triggering.

The utility model, by the circuits for triggering that can produce alarm signal that in lock, described trigger switch are set and are electrically connected with described trigger switch, make and to be prized and/or because the password of input error and when unblanking when lock described in the utility model that conducting by described circuits for triggering produces the alarm signal warning with master key.

Description of drawings

Fig. 1 is the structural representation of prior art lock;

Fig. 2 is a lock Facad structure schematic diagram shown in Figure 1;

Fig. 3 is the structural representation after lock shown in Figure 2 removes front plate;

Fig. 4 is the positive internal construction schematic diagram of the described lock of the utility model embodiment;

Fig. 5 is a lock quilt cover internal construction schematic diagram shown in Figure 4;

Fig. 6 is the Facad structure schematic diagram of the described lock of the utility model embodiment;

Fig. 7 is the structure schematic diagram of the described lock of Fig. 6;

Fig. 8 is the described lock anti-theft alarm function of a utility model embodiment block diagram;

Fig. 9 is the antitheft encrypting and decrypting functional block diagram of the described lock of the utility model embodiment;

Figure 10 is the standby releasing encryption function of the described lock of a utility model embodiment block diagram.

The specific embodiment

Below, in conjunction with the accompanying drawings the utility model embodiment is described in detail.

As Fig. 4～shown in Figure 6, embodiment locks 20 and comprises: twin columns dead bolt 21, have sphenocephaly monolock tongue 22, be embedded in lock 20 fronts outer tapered end 23, be embedded in the inner lock head 24 and the five metals top board 25 at lock 20 back sides;

Block when twin columns dead bolt 21 moves to outside the steering lock by five metals top board 25 by revolving of key, the jam plate 212 of twin columns dead bolt 21 is blocked by five metals top board 25 at this moment, and door is locked.

Wherein, lock 20 also is equipped with first trigger switch 26 on the twin columns dead bolt, and this trigger switch places lock inside, is electrically connected with the circuits for triggering 27 that can produce alarm signal;

First trigger switch 26, its contact can place the rearward end of the lock 211 of twin columns dead bolt 21, also can place the rearward end of the jam plate 212 of twin columns dead bolt 21, also can all be equipped with first trigger switch 26 in the rearward end of twin columns dead bolt lock 211 and the rearward end of lock 212;

Wherein, the twin columns dead bolt also can be single-column dead bolt or multicolumn dead bolt;

Present embodiment adopts and all is equipped with first trigger switch 26 in the rearward end of twin columns dead bolt lock 211 and the rearward end of lock 212; When at closing time, lock 20 monolock tongue 22 is fixed door, and insert key outer tapered end 23 without or in doors key is inserted inner lock head 24 and rotation this moment, makes the lock 211 of twin columns dead bolt 21 outwards move to five metals top board 25 and blocks jam plate 212, is locked;

When the door that lock 20 is installed is during toward the door pushed open within doors, if lock 20 is prized, then lock 211 is triggered first trigger switch 26 after the bending, makes it be communicated with circuits for triggering 27, produces alarm signal and reports to the police;

During the door that draws back outside the room when the door of lock 20 is installed, if lock 20 is prized, then lock 211 is triggered first trigger switch 26 that is installed in jam plate 212 rearward end after the bending, makes it be communicated with circuits for triggering 27, produces alarm signal and reports to the police; For this kind situation, after lock 211 is by bending, because lock 211 and jam plate 212 fuse, therefore when lock 211 during toward the exterior direction bending, triggering is less than first trigger switch 26 of lock rearward end, but along with the bending of lock 211, the perk round about of jam plate 212 rearward end is because the perk of jam plate 212 rearward end makes first trigger switch 26 that is installed in the jam plate rearward end be triggered owing to withstanding the lock shell, be communicated with circuits for triggering 27, produce alarm signal and report to the police;

Here, in order to allow jam plate 212 rearward end because the bending of lock 211 and perk, be provided with spring 2130 at the postmedian of jam plate, this spring places jam plate 212 and locks between the shell, the fixing position of jam plate 212 and lock shell, point action in the time of also can playing perk.

The safety of locking for further increase in the present embodiment, can also be equipped with second trigger switch 28 and the cipher switch 29 that is electrically connected with circuits for triggering 27 in lock 20 inside, when cipher switch 29 is in running order, if second trigger switch 28 is triggered, then circuits for triggering 27 are connected, and produce alarm signal and report to the police; When cipher switch 29 was not in running order, even if second trigger switch 28 is triggered, then circuits for triggering 27 can not be connected, and can not produce alarm signal, do not report to the police;

As shown in Figure 6, cipher switch 29 comprises: encryption key 291, decryption key 292, by encryption key and deciphering key control and gear 293 that rotates and the movable buckle plate 294 that is driven by the rotation of gear 293; Encryption key and decryption key are electrically connected with circuits for triggering 27, rotate with control gear; Wherein, gear 293 also can be a gear train;

When rotating by encryption key 291 control gears 293, and then when driving movable buckle plate 294 and moving, movable buckle plate 294 withstands twin columns dead bolt 21, the startup of encryption key 291 makes cipher switch in running order, at this moment, if second trigger switch 28 is triggered, then can be communicated with circuits for triggering 27 and produces alarm signal; When being rotated by decryption key 292 control gears 293, and then when driving movable buckle plate 294 and moving, movable buckle plate 294 separates with twin columns dead bolt 21, cipher switch is in off position, at this moment, even if second trigger switch 28 is triggered, circuits for triggering 27 can not be communicated with, alarm signal can not be produced;

When cipher switch 29 is in running order, the lock 20 if look on the bright side of things at first must be imported correct password and make decryption key 292 actions, driven gear 293 and movable buckle plate 294 actions, movable buckle plate 294 is separated with twin columns dead bolt 21, at this moment, open the lock with the key, move though the rotation of key can drive five metals top board 25, and then trigger second trigger switch 28, but the releasing of cipher switch 29 really can not be communicated with circuits for triggering 27, can not produce warning;

When if cipher switch 29 is in running order, the password of input error, then decryption key can not move, if cipher switch 29 is still in running order, here, can set the input error of password continuous several times, for example 3 input errors, then second trigger switch can be triggered, and is communicated with circuits for triggering 27, produces alarm signal and reports to the police;

Among the utility model embodiment, in order to reduce the power consumption of power supply, also a unlock switch (not doing sign among the figure) can be set on the code keypad 295 of cipher switch 29, above-mentioned encryption key 291 and decryption key 292 all are arranged on the code keypad 295, after having only unlock switch to be unlocked, the button that the encryption key on the code keypad, decryption key and being used to inputed password just can use.Such setting both can prevent that the keys of keyboard false triggering from reporting to the police, also can save power;

Wherein, described encryption key and decryption key can use same button to finish, and for example the function of use switch is that encryption key is opened when prompt tone is, is that decryption key is opened when prompt tone is two;

In order to realize that lock is positive and to lock the back side and can both finish the encryption and decryption function, add a functional switch 297 at the back side of the described lock 20 of present embodiment, as shown in Figure 7, when pressing this functional switch, represent when its prompt tone is to encrypt and open, when prompt tone is two, represent the deciphering unlatching.

Below, at above-mentioned circuits for triggering 27, be described below:

Circuits for triggering 27 comprise: trigger control circuit, alarm and the power supply of keeping the circuits for triggering electricity consumption;

Wherein, trigger control circuit and alarm can shared power supplys, and perhaps circuits for triggering use different power supply power supplies respectively with alarm; For example, adopting the 3V battery in the present embodiment is described control circuit power supply, is described alarm power supply with the 9V battery;

As further improvement, the described lock 20 of the utility model embodiment can also comprise battery electric quantity prompting device, is used for prompting replacing when battery electric quantity is not enough;

As further improvement, the described lock 20 of the utility model embodiment can also comprise a motor, the rotation that the rotation of controlling motors by the functional switch 297 of locking positive encryption key 291 and decryption key 292 or the lock back side comes driven gear 293;

As further improvement, the above-mentioned lock 20 that has motor, can also comprise standby electric power line 296, as shown in Figure 6, when this standby electric power line 296 is used to forget Password, by these standby electric power line 296 external power supplys, for example, the present embodiment employing adds the 3V battery and removes password, and movable buckle plate 294 is separated with twin columns dead bolt 21.

In sum, the described lock 20 of the utility model embodiment possesses following function:

1, anti-theft alarm function

As shown in Figure 7, after second trigger switch 28 under first trigger switch 26 and/or the encrypted state was triggered connection, circuits for triggering 27 can produce alarm signals, make alarm equipment alarm;

Wherein, circuits for triggering 27 adopt the 3V powered battery, and alarm adopts the 9V powered battery.

2, antitheft encryption and releasing encryption function

As shown in Figure 8, the functional switch 297 at encryption key 291, decryption key 292 or the lock back side is electrically connected with circuits for triggering 27, when encryption key 291, decryption key 292 or functional switch 297 by when connecing, be communicated with circuits for triggering 27, circuits for triggering 27 control gears 293 rotate, and then drive movable buckle plate 294 and move, withstanding and separate with control movable buckle plate 294 and twin columns dead bolt 21.

3, standby releasing encryption function

As shown in Figure 9, if the power supply of circuits for triggering 27 can not normal power supply, then can adopt circumscripted power line 296 external 3V batteries is circuits for triggering 27 power supplies, after alarm is triggered warning, be to improve safety, can use time-delay IC, for example delay time and 20 restart gear 293 after wonderful and rotate, drive movable buckle plate 294 and move, withstanding and separate with control movable buckle plate 294 and twin columns dead bolt 21.

4, cipher switch automatically terminates function

For making the described lock 20 of present embodiment possess not encryption function with the described lock 10 of background technology, when power supply when circuits for triggering 27 can be set less than certain voltage, during for example less than 2.5V, lock 20 automatically terminated encryption function.

Lock 20 described in the utility model, also can only adopt in lock, be provided with second trigger switch 28, circuits for triggering 27, and cipher switch 29 realize the encrypting and decrypting anti-theft alarm function, promptly, first trigger switch is not set on twin columns dead bolt 21 can realizes the encrypting and decrypting anti-theft alarm function yet, can connect the warning of circuits for triggering generation alarm signal after second trigger switch is triggered under the encrypted state when being locked in.

The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all within spirit of the present utility model and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.

Claims

1, a kind of lock that has anti-theft alarm function, the lock that comprises dead bolt and dead bolt is moved to the five metals top board that is used to block dead bolt when locking the outside, it is characterized in that, also comprise: place first trigger switch on the inner dead bolt of lock and the circuits for triggering that can produce alarm signal that are electrically connected with described first trigger switch.

2, lock according to claim 1 is characterized in that, described first trigger switch, and its contact places the rearward end of described dead bolt lock.

3, lock according to claim 1 is characterized in that, described first trigger switch, and its contact places the rearward end of described dead bolt jam plate.

4, according to any described lock of claim 1 to 3, it is characterized in that, also comprise: cipher switch and second trigger switch that places lock inside to be electrically connected with described circuits for triggering, after in running order and second trigger switch of only described cipher switch is triggered, the described circuits for triggering generation alarm signal that is connected.

5, lock according to claim 4, it is characterized in that, described cipher switch comprises: encryption key, decryption key, the gear that is rotated by encryption key and deciphering key control and rotated and the movable buckle plate that driven by described gear, when described encryption key is controlled described gear and is rotated and then drive described movable buckle plate and move, movable buckle plate blocks described twin columns dead bolt, when described decryption key was controlled described gear and rotated and then drive described movable buckle plate and move, movable buckle plate separated with the twin columns dead bolt.

6, lock according to claim 1 is characterized in that, described circuits for triggering comprise: the triggering by described trigger switch can produce the alarm of alarm signal and be the power supply of described circuits for triggering and the power supply of described alarm.

7, a kind of lock that has anti-theft alarm function, the lock that comprises dead bolt and dead bolt is moved to the five metals top board that is used to block dead bolt when locking the outside, it is characterized in that, also comprise: place the second inner trigger switch of lock, the circuits for triggering that can produce alarm signal that are electrically connected with described second trigger switch, and cipher switch, after in running order and second trigger switch of only described cipher switch is triggered, the described circuits for triggering generation alarm signal that is connected.

8, lock according to claim 7 is characterized in that, also comprises: place first trigger switch on the inner dead bolt of lock, described first trigger switch is electrically connected with described circuits for triggering.

9, lock according to claim 8 is characterized in that, described first trigger switch, and its contact places the rearward end of described dead bolt lock.

10, lock according to claim 8 is characterized in that, described first trigger switch, and its contact places the rearward end of described dead bolt jam plate.