CN2285917Y

CN2285917Y - Box and bag alarm device

Info

Publication number: CN2285917Y
Application number: CN 97208427
Authority: CN
Inventors: 安继康
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-01-17
Filing date: 1997-01-17
Publication date: 1998-07-08
Anticipated expiration: 2007-01-17

Abstract

The utility model relates to a box and bag alarm device. The utility model is composed of an induction sensor, a dislocation sensor, a silicon-controlled switch, a sounder, a control switch and a battery. The silicon-controlled switch which can be turned off is used as a kernel of a circuit of the utility model. The dislocation sensor and the induction sensor are utilized to trigger a controllable silicon to be conducted, so the dislocation alarm and the induction alarm are realized. By making use of the plug structure and the socket structure of the control switch, the conversion of the self-rising state and the pre-alarming state is realized, and the cutting alarm function is realized. The control switch of the controllable silicon which can be turned off is reasonably utilized, so the utility model has the advantages of comprehensive alarm function, compact circuit structure, simple structure and low cost.

Description

Case, wrap dual-purpose alarm

The utility model is a kind of case, wraps dual-purpose alarm that it can be contained on leather trunk or the suitcase, realizes offing normal, respond to, kidnap, cutting the function of reporting to the police.

In prior art, Chinese patent 89200093 provides a kind of and has offed normal, induction type suitcase alarm.This alarm only can be realized offing normal, respond to two kinds of warning functions, so warning function is comprehensive inadequately, and the particularly not anti-warning function of kidnapping, this is very important shortcoming.

The purpose of this utility model is at the problems referred to above, the more comprehensive case of a kind of warning function is provided, wraps dual-purpose alarm.

For achieving the above object, solution of the present utility model is as follows: it is by induction pick-up, the sensor of offing normal, and transwitch, squealer, gauge tap and battery are formed; Described induction pick-up is made of the metal sensing chip that is connected on this on-off circuit base stage of transistor switching circuit A; The described sensor of offing normal is made of with the Closing Switch of offing normal that is serially connected in this on-off circuit base bias circuit transistor switching circuit B; Described transwitch is a kind of controllable silicon that turn-offs, and its anode harmonizing yinyang is serially connected in the positive power source terminal of squealer as the power switch of squealer, and the described silicon controlled control utmost point joins with the output terminal of off normal sensor and induction pick-up; Described gauge tap is connected between the SCR control utmost point and the battery cathode, is used to control the pre-turn-on and turn-off of silicon controlled, and this gauge tap is made of a pair of plug and socket.

The utility model is a circuit core with a transwitch that can turn-off, and can trigger the controllable silicon conducting by off normal sensor and induction pick-up, offs normal and induction alarm with realization; The cooperation of the plug and socket by gauge tap is pegged graft, and the may command controllable silicon is in off state all the time, and plug is extracted and when breaking away from socket, can make controllable silicon be in pre-conducting state, thus the conversion of " carrying certainly " and " early warning " state of realization.Simultaneously, can connect a rope chain on the plug of gauge tap, when being in " carrying certainly " state at alarm, by the rope chain plug and finger are connected together, when hand separated with case, bag when the situation of being held as a hostage occurring, then at this moment plug was by the related socket of pulling out,, off normal or induction pick-up all can trigger the controllable silicon conducting and reports to the police, thereby realize kidnapping warning function.According to the operating principle of gauge tap, when being in " carrying certainly " state at alarm,, can report to the police, thereby realize the function of anti-cutting as long as cut off the lead that is connected between gauge tap and the battery cathode.

By above-mentioned solution as can be seen, superiority of the present utility model is the reasonable utilization by turn-off SCR and gauge tap, to off normal dexterously, respond to, kidnap, cut warning function and the state exchange function combines, make the circuit structure compactness, simple, cost is low.

Describe its structure and principle of work in detail according to embodiment below.

Accompanying drawing, circuit theory diagrams of the present utility model.

Referring to accompanying drawing, the middle transistor switching circuit A of described induction pick-up is connected and composed by complex pipe (1) and pull-up resistor (2), (3), described metal sensing chip (4) is connected on the base input end of complex pipe (1), and is installed on the handle of case, bag or near the handle place.When hand when the handle, the complex pipe conducting is by the exportable induced voltage signal of pull-up resistor (3).Transistor switching circuit B in the described sensor of offing normal is connected and composed by power tube (5), base stage current-limiting resistance (6), pull-up resistor (7), (3), the Closing Switch of offing normal (9) and hand switch (8).The described Closing Switch of offing normal (9) is connected in the base bias circuit of this on-off circuit, and be installed on a certain support foot of case and bag, when case, when bag is placed, the switch of the Closing Switch of offing normal (9) retaining is placed on the face and pushes up, make it to be in off-state, then power tube (5) ends; When case and bag, when lifting, its switch retaining nature falls, and makes it to be in closure state, then power tube (5) conducting, and export the voltage signal of offing normal by pull-up resistor (3).For the sensor of offing normal is insured more, a photodiode (10) in parallel in on-off circuit B, it is installed on the support foot of case, bag with the Closing Switch of offing normal (9).When case and bag lifted, photosensitive tube can be subjected to light and conducting, and exported the voltage signal of offing normal by pull-up resistor (3).When case, bag fall placing flat (as being placed on the goods carrier of railroad car) and alarm when being in alert status, the sensor of offing normal may move and produce false alarm, when running into this situation, uses hand switch (8) and disconnects the sensor of offing normal.Described squealer is connected and composed by audio frequency sounding integrated (11) and loudspeaker (12).The anode of described transwitch (13) and negative electrode are serially connected in the positive power source terminal of audio frequency sounding integrated (11) as switch terminals, its the control utmost point is connected on the positive voltage terminal of pull-up resistor (3), described gauge tap is made up of socket (14) and plug (15), socket is installed in the surface of case, bag, makes plug can insert socket outside case, bag.Two jacks of socket (14) terminate at as two of switch between the control utmost point and battery cathode of controllable silicon (13), and two plug electricity in the plug (15) link to each other.When plug (15) is inserted on the socket (14), be equivalent to two jack short circuits in the socket, promptly the control utmost point ground connection of controllable silicon (13) makes controllable silicon be in locking states, and at this moment, circuit is in " carrying certainly " state; When plug (15) when pulling out, circuit is in " early warning " state, at this moment, as long as someone carries, lifts case, bag, off normal sensor or induction pick-up all can move, then the forward voltage on the pull-up resistor (3) can conducting controllable silicon, make integrated of audio frequency sounding electric and work, the sound signal of its output is sent alarm sound by loudspeaker.Report to the police or during alert status, only need plug (15) is inserted socket (14) when removing, can turn-off or locking controllable silicon again.According to the control principle of described gauge tap, can control serial connection anti-cutting lead (16) between the utmost point and battery cathode at silicon controlled, and anti-cutting lead (16) and case, envelope material are made one.When owner's suitcase, bag, also be alarm when being in " carrying certainly " state, as long as there is the people to cut off lead (16) on case, the envelope material, then alarm is reported to the police at once.For the plug and socket that makes gauge tap has the relation of pegging graft one to one, as same the corresponding key of lock, described plug (15) and socket (14) can be selected multi-pin connector (17) and socket (18) for use, optional two jacks (A, B) are as two ends of gauge tap in multi-core socket, receive between the SCR control utmost point and the battery cathode and replace socket (14), and by two corresponding in the corresponding connection multi-pin connector of a diode (19) plug end (A ', B ').If according to the mathematics Rankine-Hugoniot relations of multiselect two, can make tens of to plug and socket one to one.For example select eight core plugs and socket for use, select two mathematics to arrange according to eight, can obtain 56 kinds of plug and sockets one to one, like this, the gauge tap that can make every case, bag be has the uniqueness of certain limit.In order to allow multi-pin connector and socket have certain anti-misplug warning function, can connect anode by a divider resistance (20) again with behind remaining jack electric connection in the multi-core socket.Like this, if the plug wrong plug, and just run in the multi-pin connector two and be communicated with logical a certain surplus hole of terminations and SCR control utmost point jack, then resistance (20) is connected with pull-up resistor (3), make pull-up resistor (3) go up obtain positive voltage, thus conducting controllable silicon and reporting to the police.

Claims

1, a kind of case, wrap dual-purpose alarm, it is characterized in that:

A, by induction pick-up, the sensor of offing normal, transwitch, squealer, gauge tap and battery are formed;

B, described induction pick-up are made of the metal sensing chip (14) that is connected on this on-off circuit base stage of transistor switching circuit A;

C, the described sensor of offing normal are made of transistor switching circuit B and the Closing Switch of offing normal (9) that is serially connected in this on-off circuit base bias circuit;

D, described transwitch are a kind of controllable silicons that turn-offs (13), and its anode harmonizing yinyang is serially connected in the positive power source terminal of squealer as the power switch of squealer, and the described silicon controlled control utmost point joins with the output terminal of off normal sensor and induction pick-up;

E, described gauge tap are connected between the SCR control utmost point and the battery cathode, are used to control the pre-turn-on and turn-off of silicon controlled, and this gauge tap is made of a pair of plug and socket.

2, case as claimed in claim 1, wrap dual-purpose alarm, it is characterized in that: plug of described gauge tap (15) and socket (14) can be selected multi-pin connector (17) and socket (18) for use, and optional two jacks (A, B) terminate between the SCR control utmost point and the battery cathode as two of gauge tap in multi-core socket, and corresponding two plug end in the multi-pin connector (A ', B ') are communicated with by a diode (19).