CN2193300Y - Motorcycle self-locking anti-theft alarm - Google Patents

Abstract

The utility model relates to a motorcycle self-locking anti-theft alarm, which is composed of a state testing circuit for a motorcycle body, a delay circuit, a self-locking switching circuit, a testing circuit for a motorcycle circuit, and an alarm circuit. The utility model is characterized in that the status testing circuit for a motorcycle body is mainly composed of a mercury switch HgK1 and three NAND gates F1, F2 and F3. The state change of the position of the motorcycle body is transmitted to the F1, the F2 and the F3 to be processed in the form of electrical signals by the change of the on-off state of the HgK1, so that an alarm can be sent out and the motorcycle can be locked automatically. In addition, the utility model is also provided with the delay circuit which is composed of a thyristor SCR, a relay J, a capacitor C1, a capacitor R4 and a diode VD7; so that the actual use of the motorcycle self-locking anti-theft alarm is convenient.

Description

Motorcycle self-locking anti-theft alarm

The utility model belongs to a kind of motorcycle anti-theft alarm in the application electric technology field.

It is CN922188 24 that Patent Office of the People's Republic of China discloses a kind of patent No., 6 motor bike is from lock anti-theft alarm, this annunciator is to utilize two orthogonal mercury switches to monitor the location status of vehicle body, and realizes self-locking and warning by latching circuit and warning circuit.But this annunciator is in actual use, require behind the vehicle parking two water very switch must one be in closure state, another is in off-state, annunciator could normal operation.This just uses actual installation and has produced certain specific (special) requirements, has brought certain degree of difficulty to the user.In addition, this annunciator promptly enters the state of alert after cutting out ignition lock, do not have surge time, still feels inconvenience during actual the use.

The purpose of this utility model provide a kind of do not have special mounting require and can delay time enter the state of alert motor bike from lock anti-theft alarm.

Technical solution of the present utility model mainly is to form the vehicle body state detection circuit with a mercury switch, three NAND gate, diode and electric capacity, resistance.The change of the on off mode by mercury switch is transferred to warning circuit and reaches the warning purpose thereby the vehicle body location status is changed form with electric signal, in addition, also is provided with the testing circuit of time delay circuit and motor bike self circuit state.

Below, in conjunction with the accompanying drawings technical solution of the present utility model and principle of work are described in detail.

Fig. 1 is an electrical schematic diagram of the present utility model.

Mercury switch HgK among the figure ₁, NAND gate F ₁, F ₂, F ₃, capacitor C ₂, C ₃, resistance R ₅, F ₆, F ₇, diode VD ₈Constitute the vehicle body state detection circuit.HgK ₁One termination power negative pole, another termination F ₁Input end also passes through resistance R ₅The power connection positive pole, F ₁Output termination F ₂Input end also passes through C ₂Be connected to F ₃One input end, F ₂Mouth passes through C ₃Be connected to F ₃Another input end, F ₃Two input ends pass through R respectively ₆, R ₇Be connected to positive source, F ₃Output termination isolation diode VD ₈Anodal; Thyristor SCR, relay J, capacitor C ₁, resistance R ₄, diode VD ₇Constitute time delay circuit.One group of open contact JK of J ₁Be parallel to C ₁Two ends, C ₁Pass through R ₃The power connection positive pole passes through VD simultaneously ₇Be connected to the SCR control utmost point, SCR negative electrode connecting resistance R ₁₁Transistor VT ₂, VD ₁, resistance R ₈, R ₂, capacitor C ₄, NAND gate F ₃And motor bike self circuit (A) constitutes motor bike circuit state testing circuit.F ₃One input end passes through R ₈Connect the transistor e utmost point, C ground connection, C ₄Be connected to b, the c utmost point, the b utmost point and pass through VD ₁Resistance R ₁To the A point, the A point connects the motor bike circuit; Relay J, transistor VD ₅, VD ₆, VD ₂, VD ₄, VT ₁Resistance R ₁, R ₃Constitute the self-lock switch circuit.VT ₁C utmost point power connection positive pole, e succeeds electrical equipment J, the b utmost point is by R in parallel ₃, VD ₄Ground connection is passed through VD simultaneously ₂And R ₁To motor bike circuit A point, the common ground connection of J, normally closed contact meets VD ₆Negative pole and VD ₅Negative pole, VD ₆Positive pole meets VT ₂The C utmost point, VD ₅Positive pole connects motorcycle ignition wire loop B point; NAND gate F ₄, transistor VT ₃, VD ₉, integrated IC, resistance R ₉, R ₁₀, capacitor C ₅, C ₆Constitute the alarm switch output circuit.F ₄Input termination VD ₈Negative pole also passes through C in parallel ₅, R ₉Ground connection, mouth passes through R ₁₀Meet VT ₃The b utmost point, the e utmost point meets R ₁₁, the C utmost point is by VD in parallel ₉, C ₆, IC ground connection, and pass through R ₁₂Meet VT ₄The B utmost point, the mouth of IC passes through C ₇Meet VT ₄The B utmost point; Transistor VT ₄, VT ₅, resistance R ₁₁, R ₁₃, capacitor C ₇, step-up transformer B and alarming horn SP constitute the alerting signal power output circuit.VT ₄, VT ₅Constitute NPN type multiple unit tube, R ₁₃Be serially connected with VT ₅Emitter circuit, collecting electrode pass through the first polar curve circle of B to positive source, inferior loudspeaker SP extremely taking alarm.

The utility model principle of work is as follows: when the motorcycle ignition switch connection, the A point is a high level, VT ₁Conducting, J adhesive, open contact JK ₁Closed with C ₁Discharge, normally closed contact JK ₂Disconnect, the breaking alarm power supply, annunciator quits work, and after ignition key was transferred to, J discharged, JK ₂The closed annunciator power supply of connecting, high-tension coil passes through VD simultaneously ₅, JK ₂Shorted to earth is realized auto-lock function, open contact JK ₁Disconnect C ₁Pass through R ₄Charging.This moment, SCR did not have conducting, even moving vehicle, IC does not send warning because of there being power supply not work.C after the several seconds kind ₁Charging valtage raises gradually, up to the SCR triggering and conducting, decides into the buffering work of delaying time.In between time delay, if motor bike moves or other circuit is switched on (as hanging neutral gear, braking, open steering indicating light etc.), then SCR can not conducting, and until the motor bike engage a gear and close after all switches park, delay working again just is after the conducting of delaying time.Annunciator promptly is in alert status, because R ₆, R ₇With F ₃Input end power connection positive pole keeps high level, F ₃Output low level, if this moment is mobile vehicle body, then mercury switch HgK ₁On off mode change, its signal is through F ₁Back input F ₂, at F ₁Or F ₂Mouth produces a low level pulse, and this pulse is through C ₂Or C ₃Be coupled to F ₃Input end, F ₃To export a high level pulse, through diode VD ₈To C ₅Charging makes F ₄Input end is a high level, and mouth is put down VT for low ₃Conducting, power supply is through SCR, R ₁₁, VT ₃IC is powered.The alerting signal that IC produces is through C ₇Be coupled to VT ₄Base stage is through VT ₄, VT ₅Carry out power gain, step-up transformer B exports warning loud-speaker SP to and sends chimes of doom.Along with R ₉To C ₅Be discharged to F ₄When input end is low level, circuit upset, VT ₃End, warning stops, and reenters alert status.Under alert status, if hang neutral gear or each on off state change of motor bike, then the A point is a low level, VT ₂Conducting, F ₃The output high level also will trigger warning.

Claims (3)

1, a kind of motor bike comprises self-lock switch circuit, vehicle body state detection circuit and warning circuit from lock anti-theft alarm, it is characterized in that the vehicle body state detection circuit is by mercury switch Hgk ₁NAND gate F ₁, F ₂, F ₃, capacitor C ₂, C ₃, resistance R ₅, R ₆, R7, diode VD ₈Constitute Hgk ₁One end ground connection, another termination F ₁Input end also passes through resistance R ₅The power connection positive pole, F ₁Output termination F ₂Input end also passes through C ₂Be connected to F ₃One input end, F ₂Mouth passes through C ₃Be connected to F ₃Another input end, F ₃Two input ends pass through R respectively ₆, R ₇Be connected to positive source, F ₃Output termination isolation diode VD ₈Anodal.

2, it is characterized in that also being provided with from lock anti-theft alarm according to right 1 described motor bike by thyristor SCR, relay J, capacitor C ₁, resistance R ₄With diode VD ₇The time delay circuit that constitutes, the open contact JK of J ₁Be parallel to C ₁Two ends, C ₁Pass through R ₄The power connection positive pole, pass through VD simultaneously ₇, be connected to the SCR control utmost point, SCR negative electrode connecting resistance R ₁₁

3, motor bike self-locking alarm according to claim 1 and 2 is characterized in that also being provided with NAND gate F ₃, transistor VT ₂, VD ₁, capacitor C ₄, resistance R ₈, R ₂And the motor bike circuit state testing circuit of motor bike self circuit (A) formation, F ₃One input end passes through R ₈Connect transistor emitter, base stage is passed through VD ₁Connect motor bike circuit (A) and pass through R ₂The power connection positive pole.

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