CN2251511Y - High sensitive three proofings alarm device for vehicle - Google Patents

Abstract

The utility model relates to a theft-proof movable alarm arranged on a vehicle, which is composed of a metallic shell, a drawer lock arranged on an upper cover of the shell, a cell clamp, a lock nose of a lower cover of the shell, a circuit power switch, a trigger delay alarm circuit, a movable inductive switch, etc., wherein the circuit power switch, the trigger delay alarm circuit and the movable inductive switch are arranged before the lock nose. The utility model is characterized in that when the drawer lock is locked, and a lock bolt extends to lock the upper and the lower covers of the shell; the lock bolt which extends is simultaneously contacted with the power switch, and a switch closed circuit is made to be switched on to be in the alarm state; when the lock bolt moves, the inductive switch is triggered, the circuit sends alarm sound. The alarm has the advantages of strong destructive resistance, impact protection and high sensitivity, the shell can be prevented from being disassembled, and rainwater can be prevented from flowing into the shell to lead the electric leakage of a cell.

Description

Highly sensitive vehicle three-protection alarm device

The utility model relates to strong, the highly sensitive warning device of a kind of mobile vehicle warning device, especially anti-damage ability.

At present, the known vehicle that can be installed in relies on the Car Burglar Alarm structure of mobile alarm to be: installation is established by cable and is shut in the shell of the system of moulding, and mercury switch and time-delay trigger warning circuit.Establish by cable and shut power on circuitry when locking, mercury switch contact contact when mobile, annunciator sends alert sound.This annunciator adopts mould the system shell and establish by cable to shut easily is removed, and in addition, the mercury switch sensitivity is low.

The purpose of this utility model provides a kind of annunciator, and it not only can send warning when mobile in that vehicle is stolen, and can prevent that shell is disassembled, is impacted, can prevent that the inflow of rainwater causes battery drain, highly sensitive annunciator.

The purpose of this utility model is achieved in that warning circuit, battery etc. is installed in the metal shell that shell is divided into loam cake and lower cover, and loam cake is drawer lock fixedly, and lower cover is established lock not, and lock is not before established source switch.When drawer lock was locked, it is other that the dead bolt of loam cake drawer lock stretches into down cover lock, and upper and lower covers is locked together.Open to prevent that shell is disassembled, the dead bolt that stretches out in addition can touch source switch, makes switch closure, power on circuitry.Circuit is made up of inductive switch and triggering delayed alarm circuit.The center that inductive switch connects silver-plated thin wire by lead button and passes silver-plated electricity circle constitutes.When mobile, silver-jacketed wire touches silver-plated electricity circle, and the warning circuit that energising is on the alert sends warning.The sensitivity of inductive switch is high.Battery is fixed on loam cake, can prevent that the inflow of rainwater causes battery drain.

Owing to adopt such scheme, make annunciator not only have the mobile alarm function, also have anti-dismounting, anti-rainwater, protecting against shock and sensitivity and improve.

Below in conjunction with drawings and Examples the utility model is further specified:

Fig. 1 is the utility model normal cross section constructional drawing:

Fig. 2 is the utility model side sectional structural map; Fig. 3 inductive switch constructional drawing;

Fig. 4 is schematic circuit diagram of the present utility model.

(8) inductive switch among Fig. 1; (9) wiring board;

Other (3) source switch (4) loudspeaker (5) batteries (6) check screws (7) fixed iron piece of (1) drawer lock (2) lock among Fig. 2

The drawer lock of loam cake (1) is when locking in Fig. 2, dead bolt stretch out pass lower cover lock not (2) make metal case two cover locks up and down together, source switch (3) the copper sheet closure that the dead bolt contact of stretching out simultaneously is made up of two copper sheets makes the circuit energized.

The silver-plated electricity circle of (10) silver-plated thin wire (11) lead button (12) among Fig. 3.

Silver-plated thin wire (10) is connected and passes the center of silver-plated electricity circle (12) with lead button (11) in Fig. 3.When being subjected to when mobile, lead button can drive silver-plated thin wire swing, and the silver-plated thin wire of swing touches mutually with silver-plated electricity circle, formation touch type switch.

N1-N6 is made of one six schmidt door integrated circuit among Fig. 4, and when source switch (3) was closed, power on circuitry capacitor C 2 was recharged, and makes N3 output keep the low voltage certain hour, and this time is made for the work of storing.After the C2 charging finishes, make N3 output high level, circuit enters the state of alert.Inductive switch (8) is in static state, N5, N6 output low level, and sound circuit is not triggered, when mobile, the inductive switch state variation, N2 exports high level, gives the C3 fast charge through D1, the N4 output low level, N5, N6 export high level, and the sound circuit output alarm signal that is triggered amplifies through BG and to make loudspeaker (4) send alarm sound, even inductive switch recovers static energy storage owing to C3, circuit is the warning of certain time still.

Claims (1)

1. A kind of annunciator in the shell of the system of moulding, establish by cable shut, mercury switch, delayed alarm circuit be electrically connected in proper order, it is characterized in that: in the metal case, outer casing upper cover is installed drawer lock, lower cover is established lock not, and lock is not before established circuit power switch, and delayed alarm circuit is electrically connected with inductive switch.

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