CN203321130U

CN203321130U - Electronic anti-theft device for locks

Info

Publication number: CN203321130U
Application number: CN2013203762281U
Authority: CN
Inventors: 关天晗; 杨先桂; 石霜霜; 罗雪; 赖天华; 肖晓华
Original assignee: Southwest Petroleum University
Current assignee: Southwest Petroleum University
Priority date: 2013-06-28
Filing date: 2013-06-28
Publication date: 2013-12-04
Anticipated expiration: 2023-06-28

Abstract

The utility model relates to an electronic anti-theft device for the locks of families, offices, storerooms and the like, which expands the use range of anti-theft devices and reduces the cost of the anti-theft devices. According to the technical scheme of the electronic anti-theft device, a key part is composed of a metal key and a transmission signal working circuit, the metal key is installed on a key packaging housing, and the transmission signal working circuit consisting of a button cell, a button switch and a coding chip which are connected in series is arranged in the key packaging housing; the outer layer of a lock body part is a lock body housing, the inner layer of the lock body part is a lock core, a lock hole is formed in the center of the lock core, one end of a metal lock sheet is connected with the lock core, the other end of the metal lock sheet is dead against a lock body part working circuit, and the lock body part working circuit is connected with the metal lock sheet and a metal joint by circuit connection wires respectively; and the lock body part working circuit is a closed circuit consisting of a lithium-ion rechargeable battery, a mechanical switch, a diode, a relay, a decoding reception switch and a buzzer which are connected. The electronic anti-theft device is simple to operate, low in price, and practical and has a good anti-theft effect.

Description

A kind of electric anti-thief device for lockset

Technical field

The utility model relates to a kind of electric anti-thief device of the lockset for fields such as family, office, storehouse, bicycle, battery truck, motorcycles.

Background technology

Present lock mostly is mechanical lock, simple coded lock etc., and mechanical lock structure is simple, and loss by theft rate is high; Though the electronic lock theftproof performance is better, cost is high.And along with social development, the raising of living standards of the people, property is worth and also increases, if stolen, can cause very large economic loss to them, and therefore, they wish to have bought a lock that anti-theft capability is strong and cheap very much.Undoubtedly, this lock can meet their requirement.This lock and common phase-locked ratio, the cost had more is exactly a set of sending and receiving apparatus, and the cost of lock is slightly expensive than usual, economical and practical.

Summary of the invention

The purpose of this utility model is: in order to enlarge the scope of application of anti-theft device, reduce the cost of anti-theft device, the spy provides a kind of electric anti-thief device for lockset.

For achieving the above object, the utility model adopts following technical scheme: a kind of electric anti-thief device for lockset is partly to consist of lock body part and key.Code And Decode system of the present utility model adopts the general coding-decoding circuit of CMOS low-power consumption low price of Taiwan Pu Cheng company, key and the encoding and decoding of lock body two parts are corresponding settings one by one, to adopt the PT2262/PT2272 codec chip, can pass through 12 any combination, 531441 group address codes are provided; Wherein key partly adopts coding chip PT2262 to produce one group of code signal of setting, through radio transmitter, sends; After lock body part receives code signal, by decoding chip, PT2272 is decoded, and its address code is relatively checked confirmation through twice, controls the switch of lock body buzzer, thereby guarantees whether report to the police.

Wherein, the key part is comprised of metal key, the operating circuit that transmits, and metal key is fixedly mounted on the key package casing, at the inner operating circuit that transmits be composed in series by button cell, press button and coding chip that arranges of key package casing; Be provided with the press button contact on the key package casing.When pressing the button switch contact, the press button closure, coding chip is just launched signal one time; The release button switch contact, press button is automatic disconnection, and the operating circuit that transmits quits work.

Lock body part is totally enclosed, lock body shell, lock core, lockhole, metal locking plate, metal joint, circuit connection and lock body part operating circuit, consists of; The lock body part skin is the lock body shell, be provided with the USB charging inlet of rechargeable lithium ion batteries on the lock body shell, internal layer is lock core, the centre of lock core is provided with lockhole, metal locking plate one end is connected on lock core, the other end is over against the lock body part operating circuit, and the lock body part operating circuit is connected with metal joint with the metal locking plate respectively with circuit connection, and metal locking plate and metal joint form mechanical switch.

The circuit one of lock body part operating circuit is comprised of rechargeable lithium ion batteries wire series connection mechanical switch, relay A and diode A, forms closed-loop path; Circuit two is comprised of the switch of rechargeable lithium ion batteries wire SRE B, diode B and decoding chip controls, forms closed-loop path; Circuit three is to form closed-loop path by rechargeable lithium ion batteries wire series connection time-delay relay and diode C; The line bag two ends of each relay are a diode of parallel connection all, is the measure of taking for protective relay line bag; The time-delay relay wire connects buzzer, then connects rechargeable lithium ion batteries formation closed-loop path, and the connection design by several like this circuit, realize anti-theft alarm function.

Metal locking plate and metal joint form mechanical switch, and while unblanking, metal key is inserted the lockhole rotation, and trigger metal locking plate and metal joint and form mechanical switch, the mechanical switch closure, whole lock body circuit is started working.For this circuit supply be chargeable lithium ion battery, by USB interface, it is charged.

The beneficial effect of the utility model anti-theft device is: utilize sending and receiving apparatus to realize the Intelligent Recognition of lock and key, theftproof performance improves greatly; This burglary-resisting system is simple to operate, and cheap practicality can be played anti-theft effect, well for the lockset in the fields such as family, office, storehouse, bicycle, battery truck, motorcycle.

The accompanying drawing explanation

Key part, lock body part structural representation that Fig. 1 is the utility model anti-theft device

The schematic diagram of the lock body part operating circuit 6 that Fig. 2 is the utility model anti-theft device

In figure: 1, metal key, 2, button cell, 3, press button, 4, coding chip, 5, the key package casing, 6, the lock body part operating circuit, 7, lock body shell, 8, lock core, 9, lockhole, 10, the metal locking plate, 11, metal joint, 12, circuit connection, 13, rechargeable lithium ion batteries, 14, mechanical switch, 15, relay A, 16, diode A, 17, relay B, 18, diode B, 19, the switch that decoding chip is controlled, 20, time-delay relay, 21, diode C, 22, buzzer.The specific embodiment

Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.

Shown in Fig. 1, metal key 1 is fixed on key package casing 5, inner by an operating circuit transmitted be comprised of button cell 2, press button 3 and coding chip 4.Wherein, the press button contact on key package casing 5 surfaces can control button switch 3.When pressing the button switch contact, press button 3 closures, coding chip 4 is just launched signal one time; The release button switch contact, 3 automatic disconnections of press button, the operating circuit transmitted is in off state.

Shown in Fig. 1, metal key 1 is inserted lockhole 9 and is opened while locking, and metal locking plate 10 and metal joint 11 contact, and are equivalent to mechanical switch 14 closures, and the lock body part operating circuit 6 in lock body is started working.Wherein, metal locking plate 10 and metal joint 11 have formed mechanical switch 14.

Shown in Fig. 2, rechargeable lithium ion batteries 13, mechanical switch 14, the switch 19 that decoding chip is controlled, relay A15, relay B17, time-delay relay 20, diode A16, diode B18, diode C21, buzzer 22 has formed closed-loop path.Wherein, rechargeable lithium ion batteries 13, charge to it by the USB interface on lock body shell 7.

The whole system workflow is: during use, metal key 1 is inserted lockhole 9 and is opened while locking, mechanical switch 14 closures that formed by metal locking plate 10 and metal joint 11, rechargeable lithium ion batteries 13 is whole circuit supply, relay A15 line bag obtains the power supply adhesive, its adhesive contact is relay B17 power supply, thereby relay B17 line bag obtains the power supply adhesive; Now, because remote control code receiver not yet receives the code signal of unique pairing with it of coding chip 4 emission, after the switch 19 that decoding chip is controlled completes user's identification, control switch 19 that decoding chip controls in normally off.Now, even disconnect mechanical switch 14, owing to being now switch 19 closures of being controlled by decoding chip, give the power supply of relay B17 line bag by it, so circuit still can work.After relay B17 adhesive, the switch 19 of controlling by decoding chip is time-delay relay 20 line bag power supplies, time-delay relay 20 is started working, automatic pick after time delay 5 seconds, under this state, if within the time of 5 seconds, the user presses the press button 3 on key package casing 5, coding chip 4 emission one group coding signals, once the switch 19 that decoding chip is controlled is received this group coding signal, after completing user's identification, control at once switch 19 disconnections that decoding chip is controlled, time-delay relay 20 loses power supply, immediately in off-state, buzzer 22 warning that stops piping, if the switch 19 that decoding chip is controlled in 5S does not receive the code signal of coding chip 4 emissions, the switch 19 that decoding chip is controlled is always in closure state, circuit is in channel status, after time delay 5S, buzzer 22 warning that pipes, now, if the user presses the press button 3 on key package casing 5, coding chip 4 emission one group coding signals, once the switch 19 that decoding chip is controlled is received this group coding signal, after completing user's identification, disconnect at once, time-delay relay 20 loses power supply, immediately in off-state, buzzer 22 stop alarms, so far whole lock body part operating circuit returns to original state.

Claims

1. the electric anti-thief device for lockset, by key part and lock body part, formed, it is characterized in that: the key part is comprised of metal key (1) and the operating circuit that transmits, metal key (1) is fixedly mounted on key package casing (5), inside at key package casing (5) arranges the operating circuit that transmits be composed in series by button cell (2), press button (3) and coding chip (4), is provided with the contact of press button (3) on key package casing (5); Lock body part is totally enclosed, lock body shell (7), lock core (8), lockhole (9), metal locking plate (10), metal joint (11), circuit connection (12) and lock body part operating circuit (6), consists of; The lock body part skin is lock body shell (7), be provided with the USB charging inlet of rechargeable lithium ion batteries (13) on lock body shell (7), internal layer is lock core (8), the centre of lock core (8) is provided with lockhole (9), metal locking plate (10) one ends are connected on lock core (8), the other end is over against lock body part operating circuit (6), lock body part operating circuit (6) is connected with metal joint (11) with metal locking plate (10) respectively with circuit connection (12), and metal locking plate (10) forms mechanical switch (14) with metal joint (11).

2. to require the 1 described electric anti-thief device for lockset according to right, it is characterized in that: the circuit one of described lock body part operating circuit (6) is by rechargeable lithium ion batteries (13) wire series connection mechanical switch (14), relay A(15) and diode A (16) form, the formation closed-loop path; Circuit two is comprised of the switch (19) of rechargeable lithium ion batteries (13) wire SRE B (17), diode B (18) and decoding chip controls, forms closed-loop path; Circuit three is to form closed-loop path by rechargeable lithium ion batteries (13) wire series connection time-delay relay (20) and diode C (21); The line bag two ends of each relay are a diode of parallel connection all; Time-delay relay (20) wire connects buzzer (22), then connects rechargeable lithium ion batteries (13) formation closed-loop path.

3. according to the described electric anti-thief device for lockset of claim 1 or 2, it is characterized in that: the coding and decoding chip of described key part and lock body part is corresponding setting one by one, be to adopt the PT2262/PT2272 codec chip, by 12 any combination, provide 531441 group address codes; Key partly adopts coding chip PT2262 to produce one group of code signal of setting, through radio transmitter, sends; After lock body part receives code signal, by decoding chip, PT2272 is decoded, and its address code is relatively checked confirmation through twice, controls the switch of lock body buzzer (22).