CN2252144Y - Agricultural tricycle anti-theft alarm - Google Patents

Abstract

The utility model discloses an agricultural tricycle burglar alarm who comprises power, trigger circuit, stereo set circuit, its characteristics lie in having adopted the trigger self-locking circuit who comprises silicon controlled rectifier and triode and the touch trigger circuit who comprises touch wire F, LC oscillator and triode BG3 with shake the trigger circuit that shakes that vibration contact switch KX, diode D3 are constituteed. The open circuit trigger circuit consists of a triode BG4, normally closed switches K1 and K2, and sockets CZ3, CZ4, CZ5 and CZ 6. The alarm has three triggering modes of touch, shaking and open circuit, overcomes the defects of single triggering mode, insensitive alarm and poor confidentiality of the existing alarm, and has the characteristics of simple structure, easy manufacture, reasonable design and low price.

Description

The agricultural tricycle burglar alarm

The utility model relates to a kind of agricultural tricycle burglar alarm.

The motor vehicle burglar alarm of Chu Shouing in the market, as using on the motor bike, its triggering mode is single, it is insensitive to report to the police, other then have specific (special) requirements to the structure of vehicle as the burglar alarm of using on the automobile, as need ignition system, door and window etc., and their complex structures, expensive price, be not suitable for agricultural tricycle simple in structure.

The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, and a kind of simple in structure, low price of the three kinds of triggering modes that have touch, rock and open a way is provided, and is best suited for the burglar alarm of agricultural tricycle.

Concrete solution of the present utility model is: this burglar alarm is made up of power circuit 1, trigger circuit 2 and acoustics circuit 3, the mouth of power circuit 1 connects trigger circuit 2 input ends, the mouth of trigger circuit 2 connects acoustics circuit 3 input ends, it is characterized in that:

The trigger circuit 2 of described annunciator comprise a triggering latching circuit 24 and be attached thereto three kinds derived circuit independently each other: touch trigger circuit 21, rock trigger circuit 22 and open circuit trigger circuit 23,

Touching trigger circuit 21 is by touching lead F, LC oscillator and aerotron BG ₃Form potential device W, resistance R ₂, R ₃Be aerotron BG ₂Base bias voltage is provided, and BG ₂Emitter is then by a diode D ₂With BG ₃Base stage link to each other BG ₃Collecting electrode extremely link to each other with the control of silicon control MCR;

Rocking trigger circuit 22 is to shake contact switch KX and the diode D that hits exactly vertical insertion from KX by one that connects power supply ₃Form D ₃Negative pole connect the control utmost point of described silicon control MCR.

Open circuit trigger circuit 23 are by aerotron BG ₄And be serially connected in the normally closed switch K that circuit signal point A point and shorted to earth point B are ordered ₁, K ₂, socket CZ ₃, CZ ₄, CZ ₅, CZ ₆The short-circuit network of forming is formed, BG ₄Base stage link to each other BG with signal location A ₄Emitter be connected with the control utmost point of described silicon control MCR.

Triggering latching circuit 24 is by described silicon control MCR and aerotron BG ₅Form, the anode of silicon control MCR connects power supply, and cathode end is by diode D ₄With BG ₅Base stage connect BG ₅Collecting electrode be connected with power supply, emitter is connected with acoustics circuit 3.

This burglar alarm also comprises a wireless transmitting system, and it is and touches trigger circuit 21 shared oscillating circuits that the signal of described acoustics circuit 3 outputs is through capacitor C ₂Be coupled to aerotron BG ₂Base stage, realize the base stage modulation, modulation signal is launched by touching lead F.

This burglar alarm is joined one and described socket CZ outward ₂Corresponding plug special CT ₂, this plug is a contact of a normal stereo headset plug to be connected with the common pole short circuit make.

The contact switch KX that shakes of this burglar alarm is stretched by the power spring of several millimeters of diameters to form.

The burglar alarm that adopts this programme to make by touching, rock and the triggering of the three kinds of triggering modes of opening a way, can prevent well that vehicle is stolen, and has highly sensitive, strong security, simple in structure, advantage such as price is cheap.

Fig. 1 is a functional-block diagram of the present utility model.

Fig. 2 is schematic circuit diagram of the present utility model.

Fig. 3 is plug special CT ₂With the structural representation that shakes contact switch KX.

As shown in Figure 1, this burglar alarm is made up of power circuit 1, trigger circuit 2, acoustics circuit 3, and power circuit 1 mouth connects trigger circuit 2, and trigger circuit 2 mouths connect acoustics circuit 3.Trigger circuit 2 comprise a triggering latching circuit 24 and be attached thereto three kinds derived circuit independently each other: touch trigger circuit 21, rock trigger circuit 22 and open circuit trigger circuit 23.

Schematic circuit diagram as shown in Figure 2, this annunciator have external electric supply socket CZ ₁, adopt dual power supply, adopt at ordinary times to exchange adjustable rectifier power source power supply, to cut down the consumption of energy, during as mains failure or artificial destruction, self-contained battery is because of diode D ₁Conducting and incircuit.Do not establish switch in the power circuit 1, by aerotron BG ₁And plug special CT ₂The control circuit break-make is as socket CZ ₂When being in closed condition, power connection, annunciator is in running order, at this moment socket CZ ₂In no matter insert conductor, still stop all can not be with supply disconnecton in insulation, annunciator is in running order all the time, then needs at CZ when not needing annunciator ₂The interior plug special CT that inserts as shown in Figure 3 ₂, at this moment power supply is cut off, and annunciator is not in work.

As socket CZ ₂In when inserting conductor, by socket CZ ₂Common pole Z ₀Connect normally closed contact Z by conductor ₁, Z ₂Moving plate, with short circuit, aerotron BG at this moment ₁Three utmost points be in equipotential simultaneously, inoperative, power supply is by socket CZ ₂Supply with other circuit working.

As socket CZ ₂In when inserting insulator, socket CZ ₂Two groups of normally closed contact Z ₁, Z ₂All be disconnected, circuit can not short circuit making, BG at this moment ₁Base stage be in active potential, emitter is in high potential, BG ₁Satisfy and close conducting, collecting electrode output high potential is supplied with other circuit working.

As socket CZ ₂The interior plug special CT that inserts ₂The time, plug special CT ₂Be a contact T a normal stereo headset plug ₂With common pole T ₀The short circuit bonded assembly, plug CT ₂Two contact T ₁With T ₂Be and socket CZ ₂Two normally closed contact Z ₁And Z ₂Corresponding, when CT ₂Insert CZ ₂The time, T ₁Point makes Z ₁With Z ₀Insulation, T ₂Point makes Z ₂With Z ₀Connect, like this aerotron BG ₁Base stage be in high potential, emitter also is in equipotential, BG ₁Be in off condition, power supply is disconnected, and owing to such structure, has increased the confidentiality of this annunciator.

Touch trigger circuit 21: by potential device W, resistance R ₂, R ₃Form potential-divider network, be aerotron BG ₂Provide base bias, after the starting of oscillation of LC oscillator, by BG ₂Emitter output AC signal is through diode D ₂Detection output high potential removes to control aerotron BG ₃Base stage, make BG ₃Satisfy and close conducting, BG ₃Collecting electrode output active potential, silicon control MCR controls utmost point triggerless voltage and not conducting.And when the timesharing of staff touch vehicle metal part, be and vehicle metal part phase-splitting bonded assembly that resonance is forced to failure of oscillation, BG by the body capacitance parallel connection owing to touch lead F ₂Emitter does not have the output of interchange, BG ₃Base stage is no-bias and ending then, at this moment BG ₃Collecting electrode be in high potential, the silicon control MCR self-locking that is triggered.

Rock trigger circuit 22, be by as shown in Figure 3 shake contact switch KX and diode D ₃Form, K switch X is that the power spring by 3 millimeters of diameters stretches and forms, and vertically inserts diode D in the center of K switch X ₃, D ₃Another negative pole connect silicon control NCR control utmost point, K switch X other end power connection positive pole is when K switch X is rocked contact diode D ₃During the positive pole pin, D ₃Conducting, the silicon control MCR self-locking that is triggered.

Open circuit trigger circuit 23 are by aerotron BG ₄And be serially connected in the normally closed switch K that circuit signal point A point and shorted to earth point B are ordered ₁, K ₂, socket CZ ₃, CZ ₄, CZ ₅, CZ ₆The short-circuit network of forming is formed, BG ₄Base stage link to each other BG with signal location A ₄Emitter is connected with the control utmost point of silicon control MCR.Short-circuit network forms a closed loop system, when short-circuit network is in short-circuit condition, and BG ₄Base stage be zero level, BG ₄End emitter no-output, the silicon control self-locking that can not be triggered.When short-circuit network is in open-circuit condition, BG ₄Base stage obtains bias voltage and satisfies and close conducting, BG ₄The self-locking that is triggered of emitter output high potential, silicon control MCR.Socket CZ ₃, CZ ₄Make open type, two plugs that connecting must be inserted simultaneously at ordinary times, short-circuit network can short circuit, socket CZ ₅, CZ ₆Only used normally closed contact wherein.Normally closed switch K no matter ₁, K ₂Be disconnected, or socket CZ ₃, CZ ₄Two plugs or one of them be drawn out of or socket CZ ₅, CZ ₆In inserted anything, all will make short-circuit network open circuit and trigger and report to the police.Such structure has increased the sensitivity of annunciator.

Because socket CZ ₂, CZ ₅, CZ ₆Be random and be staggered, increased the security performance of reporting to the police simultaneously.

In a single day silicon control MCR is triggered, and promptly is self-locking in conducting state, and electric current is through diode D ₄And resistance R ₁₀To aerotron BG ₅Base current is provided, makes BG ₅Full closing conducting, is the acoustics circuit power supply, loud-speaker Y pronunciation warning, simultaneously with alerting signal through capacitor C ₂Be coupled to aerotron BG ₂Base stage is because LCBG ₂The oscillator reality of forming also is a frequency-modulated transmitter, historical facts or anecdotes has showed the base stage modulation, and modulation signal is launched by touching lead F, and available FM receiver receives clear bright alerting signal in 100 meters scopes, and when loud-speaker was destroyed in the machine, transmitting and receiving signal was unaffected.

Claims (4)

1, a kind of agricultural tricycle burglar alarm, form by power circuit (1), trigger circuit (2), acoustics circuit (3), power circuit (1) mouth connects trigger circuit (2) input end, and trigger circuit (2) mouth connects acoustics circuit (3) input end, it is characterized in that:

A supply disconnecton network is arranged in the power circuit of described annunciator (1), and it is by aerotron BG ₁With socket CZ ₂Form BG ₁Base stage gang socket CZ ₂Normally closed contact Z ₂, emitter links to each other with power supply, collecting electrode and socket CZ ₂Another normally closed contact Z ₁Connect, and connect power output end;

The trigger circuit of described annunciator (2) comprise a triggering latching circuit (24) and be attached thereto three kinds derived circuit independently each other: touch trigger circuit (21), rock trigger circuit (22) and the trigger circuit (23) of opening a way,

Touching trigger circuit (21) is by touching lead F, LC oscillator and aerotron BG ₃Form potential device W, resistance R ₂, R ₃Be aerotron BG ₂Base bias voltage is provided, and BG ₂Emitter then by a diode D ₂With BG ₃Base stage link to each other BG ₃Collecting electrode extremely link to each other with the control of silicon control MCR;

Rocking trigger circuit (22) is to shake contact switch KX and the diode D that hits exactly vertical insertion from KX by one that connects power supply ₃Form D ₃Negative pole connect the control utmost point of described silicon control MCR;

Open circuit trigger circuit (23) are by aerotron BG ₄And be serially connected in the normally closed switch K that circuit signal point A point and shorted to earth point B are ordered ₁, K ₂, socket CZ ₃, CZ ₄, CZ ₅, CZ ₆The short-circuit network of forming is formed, BG ₄Base stage link to each other BG with signal location A ₄Emitter be connected with the control utmost point of described silicon control MCR;

Triggering latching circuit (24) is by described silicon control MCR and aerotron BG ₅Form, the anode of silicon control MCR connects power supply, and cathode end is by diode D ₄With BG ₅Base stage connect BG ₅Collecting electrode be connected with power supply, emitter is connected with acoustics circuit (3).

2, agricultural tricycle burglar alarm according to claim 1, it is characterized in that: described annunciator also comprises a wireless transmitting system, it is and touches the shared oscillating circuit of trigger circuit (21) that the signal of described acoustics circuit (3) output is through capacitor C ₂Be coupled to aerotron BG ₂Base stage, realize the base stage modulation, modulation signal is launched by touching lead F.

3, agricultural tricycle burglar alarm according to claim 1 is characterized in that: described annunciator is joined one and described socket CZ outward ₂Corresponding plug special CT ₂, this plug is a contact of a normal stereo headset plug to be connected with the common pole short circuit make.

4, agricultural tricycle burglar alarm according to claim 1 is characterized in that the described contact switch KX that shakes is stretched by the power spring of several millimeters of diameters to form.

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