CN204571520U - A kind of theftproof lock - Google Patents

Abstract

An anti-theft lock, which adds an electronic mechanism on the basis of ordinary keys and locks. The key rod is provided with a piezoelectric ceramic battery and an infrared emission tube. A ceramic battery and an infrared emitting tube; an infrared receiving tube corresponding to the infrared emitting tube is arranged in the lock hole of the lock cylinder, and the infrared receiving tube is connected to the controller of the electronic lock; An electric push rod is arranged in the lock, the outer end of the electric push rod is fixed in the electronic lock, and the inner end is provided with a plate corresponding to the groove, and the controller is connected with the electric push rod. The appearance of the electronic key of the utility model is the same as that of the traditional key, and the utility model is convenient to use, low in cost, strong in reliability and good in anti-theft effect.

Description

an anti-theft lock

Technical field:

The utility model belongs to the technical field of anti-theft equipment, in particular to an anti-theft lock.

Background technique:

Anti-theft doors are an important barrier to protect the property, life, health and safety of ordinary citizens. In order to make the anti-theft doors more difficult to be opened, the anti-theft doors on the market have adopted measures such as adding deadbolts and thickening the door panels, but the anti-theft locks on the anti-theft doors 2. The anti-theft key is still the weak link in the safety of the anti-theft door. The anti-theft door can still be easily opened by forging keys, master keys and other professional unlocking tools.

Existing methods to increase the security of anti-theft locks and anti-theft keys mainly include: increasing the number of teeth of the anti-theft key or changing the type of key teeth, such as cross keys, under the same length and tooth density, the number of teeth is that of ordinary keys Four times, or use a flat key, replace the teeth with the pits on the flat key to increase the difficulty of being imitated; use new locks such as electronic locks and combination locks. With the advancement of science and technology, new electric unlocking tools can still open locks that have added teeth or use pits instead of teeth, while new anti-theft locks such as electronic locks and combination locks have better anti-theft performance, but their cost is relatively high. The structure of the key and the lock is different from the structure of the existing key and the lock, and its versatility is not good, and the reliability is unstable, which may cause obstacles in usage habits.

Utility model content:

In order to solve the problems existing in the prior art, the utility model proposes an anti-theft lock with low cost, reliable structure, convenient use and good anti-theft effect.

In order to achieve the above object, the utility model adopts the following technical solutions: an anti-theft lock, including an electronic lock and an electronic key, the electronic lock includes a lock core, and a number of marbles are arranged in the lock hole of the lock core; the electronic key includes a key Rod and key handle, the key rod is provided with a number of key teeth corresponding to the marbles, which is characterized in that: the key rod is provided with a piezoelectric ceramic battery and an infrared emission tube, and the key handle is provided with a drive chip for the infrared emission tube , the drive chip is connected to the piezoelectric ceramic battery and the infrared emitting tube; the lock hole of the lock cylinder is provided with an infrared receiving tube corresponding to the infrared emitting tube, and the infrared receiving tube is connected to the controller of the electronic lock; There is a groove, and an electric push rod is arranged in the electronic lock. The outer end of the electric push rod is fixed in the electronic lock, and the inner end is provided with a plug plate corresponding to the groove, and the controller is connected with the electric push rod. .

The electric push rod includes a housing, the lower part of the housing is fixed with an electromagnet, the upper part is movable with an armature, and a spring is arranged between the electromagnet and the armature, and the armature is connected with the plugboard outside the housing through a transmission rod, and the electromagnet is connected with the control The device is connected, and the shell is fixedly arranged in the electronic lock.

The driver chip is a pic10f20x single-chip microcomputer.

The infrared emitting tube is a concave emitting tube.

Beneficial effects of the utility model: the appearance of the electronic key of the utility model is the same as that of the traditional key, which is convenient to use, low in cost, strong in reliability and good in anti-theft effect.

Description of drawings:

Fig. 1 is the structural representation of the electronic key of the present utility model;

Fig. 2 is a structural schematic diagram of the cooperation of the electronic key of the present utility model with the lock cylinder of the electronic lock;

Fig. 3 is a schematic structural view of the electric push rod of Fig. 2;

Among them: 1-lock cylinder, 2-pin, 3-key lever, 4-key handle, 5-key tooth, 6-piezoelectric ceramic battery, 7-infrared emitting tube, 8-drive chip, 9-infrared receiving tube, 10-groove, 11-board, 12-electric push rod, 13-housing, 14-electromagnet, 15-armature, 16-transmission rod, 17-spring.

Detailed ways:

Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail:

As shown in Figures 1 to 2, an anti-theft lock includes an electronic lock and an electronic key, the electronic lock includes a lock cylinder 1, and a plurality of marbles 2 are arranged in the lock hole of the lock cylinder 1; the electronic key includes a key rod 3. The key handle 4, the key rod 3 is provided with several key teeth 5 corresponding to the marbles 2, the key rod 3 is provided with a piezoelectric ceramic battery 6, and the key rod 3 is provided with a recessed infrared emission tube 7 , the driver chip 8 of the infrared emission tube 7 is arranged in the key handle 4, the driver chip adopts a pic10f20x single-chip microcomputer, its power consumption is small, it is packaged in sot23, the volume is about 3mm*3mm*1.2mm, and it can be built in the key handle 4. The drive chip 8 is connected to the piezoelectric ceramic battery 6 and the infrared emitting tube 7; the infrared receiving tube 9 corresponding to the infrared emitting tube 7 is arranged in the lockhole, and the infrared receiving tube 9 is connected to the controller of the electronic lock to control The device adopts 8051 single-chip microcomputer, its performance is relatively reliable, and it can encrypt the signal in the direct communication between the infrared emitting tube 7 and the infrared receiving tube 9, the outer surface of the lock cylinder 1 is provided with a groove 10, and an electric push rod is provided in the electronic lock 12. The electric push rod 12 is connected to the controller. The electric push rod 12 includes a housing 13, the lower part of the housing 13 is fixed with an electromagnet 14, and the upper part is movable with an armature 15. A spring 17 is arranged between the electromagnet 14 and the armature 15. The flashboard 11 is connected, the electromagnet 14 is connected with the controller, the housing 13 is fixed in the electronic lock, the groove 10 corresponds to the flashboard 11, and when the electromagnet 14 is not electrified, the armature 15, the transmission rod 16, and the flashboard 11 is in a state away from the electromagnet 14, thereby locking the lock cylinder 1 and preventing it from rotating. When the electromagnet 14 is electrified, the armature 15 is attracted to the electromagnet 14, and the plug plate 11 is pulled out from the groove 10, and the lock cylinder 1 able to turn.

The following is an unlocking process of this embodiment:

The matching electronic key is inserted into the keyhole of the electronic lock. During the insertion process, the piezoelectric ceramic battery 6 is under pressure to generate electric potential energy, thereby starting the driving chip 8, and then making the infrared emitting tube 7 emit infrared light. After the infrared receiving tube 9 receives the infrared light, it will send a signal to the controller, and the controller energizes the electromagnet 14, sucks the armature 15 and pulls the plate 11 out of the groove 10 through the transmission rod 16. Since the key teeth 5 of different heights push the upper edge of the corresponding pin 2 to the edge of the inner core of the lock cylinder, the electronic key can be turned and the electronic lock can be opened at this moment.

The existing key matching process is mainly to match the same key tooth 5, and the infrared emitting tube 7 is a concave emitting tube in the present embodiment, which can be hidden in the mounting hole on the electronic key, because the appearance of the electronic key of the present utility model is different from that of ordinary The keys are the same, and it is difficult to notice that the key obtained is not an ordinary key when the key is matched maliciously. It will only be matched with the same key tooth 5, and it is difficult to make the same drive chip Infrared ray emitting tube 7, and the unlocking tool cannot accurately judge the position of the infrared ray receiving tube 9, nor can it forge the signal of the infrared ray emitting tube 7, so even if the traditional method can be used to push the marbles 2 to the proper position, the inserting plate 11 and the recessed The slot 10 also prevents the rotation of the lock cylinder 1, so that the electronic lock cannot be opened. Since the electronic key of the utility model has the same appearance and the same method of use as the common key, no additional buttons are needed, and the anti-theft performance is improved without changing the user's usage habits.

Claims (4)

1. a theftproof lock, comprises electronic lock and electron key, and described electronic lock comprises lock core, is provided with some pellets in the lockhole of lock core; Described electron key comprises key bar and the shank of the key, key bar is provided with the some key bits corresponding with described pellet, it is characterized in that: key bar is provided with piezoelectric ceramics battery and infrared emission tube, be provided with the driving chip of infrared emission tube in the shank of the key, driving chip connects piezoelectric ceramics battery and infrared emission tube; Be provided with the infrared receiver tube corresponding with described infrared emission tube in the lockhole of lock core, infrared receiver tube is connected to the controller of electronic lock; Lock core lateral surface is provided with groove, in electronic lock, be provided with electric pushrod, and the outer end of electric pushrod is fixed in electronic lock, and its inner is provided with the plate corresponding with described groove, and controller is connected with electric pushrod.

2. theftproof lock according to claim 1, it is characterized in that: described electric pushrod comprises shell, in shell, bottom is fixedly installed electromagnet, top movable is provided with armature, spring is provided with between electromagnet and armature, armature is connected with the plate outside shell by drive link, and electromagnet is connected with controller, and shell is fixedly installed in electronic lock.

3. theftproof lock according to claim 1, is characterized in that: described driving chip is pic10f20x single-chip microcomputer.

4. theftproof lock according to claim 1, is characterized in that: described infrared emission tube is recessed head transmitting tube.