CN2126098U

CN2126098U - Electronic fireworks

Info

Publication number: CN2126098U
Application number: CN 92224616
Authority: CN
Inventors: 陈韶浈; 张敬祥
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-06-09
Filing date: 1992-06-09
Publication date: 1992-12-30

Abstract

The utility model relates to an electronic firecracker which is composed of a pulse generating and shaping circuit, an RS triggering circuit, a power amplification circuit, a power circuit, a loudspeaker, a sound box, a string gun, a lighter, etc. As the RS triggering circuit is artfully matched with the pulse generating and shaping circuit, sound which is similar to firecracker ignition can be sent out, and the sound speed is adjustable. The appearance of the utility model looks like a bundle of large firecrackers, and a long string gun is hung under the firecrackers. Fume is generated when the sound is sent out. The cost is low, and the utility model can become the best substitute for the existing firecracker.

Description

Electronic fireworks

The utility model relates to a kind of firecrackers, particularly a kind of electronic firecracker.

Traditional firecrackers are combustible and explosive articles, have forbidden setting off in a lot of big cities, and the substitute that has occurred is to inflate the ball or the recording of setting off firecrackers, but poor effect.Inflating the sound of ball and real firecrackers sound differs greatly, and we can say and has no alike part.With the way cost height that plays a record, and can not produce firecrackers sound continuously for a long time, and this sound is stereotyped, has also just lost the sense of reality.

The purpose of this utility model is to avoid above-mentioned the deficiencies in the prior art part and provides a kind of profile all very similar to firecrackers with sound, but is not the electronic firecracker of combustible and explosive articles.

The purpose of this utility model can reach by following measure: the utility model comprises power circuit, loudspeaker, string big gun, it is characterized in that: also have pulse generation and shaping circuit, RS circuits for triggering, power amplification circuit, audio amplifier, igniter, the pulse signal that pulse generation and shaping circuit produce is delivered to the RS circuits for triggering, and the output of RS circuits for triggering is delivered to loudspeaker by power amplification circuit.

The purpose of this utility model can also reach by following measure: audio amplifier is made 90,000 bundle firecrackers shapes, loudspeaker and electronic circuit board are installed in the audio amplifier, the string big gun adopts plastics to make, the inside hollow, igniter by the garden cylindricality metal shell that is drilled with many apertures and be contained in the inside smoke agent form.The output of not gate A1 is joined by input 1 pin of NAND gate F1, F2 in capacitor C 2, not gate A2, resistance R 2 and the RS circuits for triggering in pulse generation and the shaping circuit, input 2 pin of F1 and output 3 pin of F2 join, and connecing input 1 pin of computing amplification circuit IC1 by not gate A3, A4, resistance R 5, output 3 pin of IC1 connect loudspeaker by capacitor C 6.

Fig. 1 is a functional-block diagram for the utility model;

Fig. 2 is a contour structures schematic diagram of the present utility model;

Fig. 3 is an electrical schematic diagram of the present utility model.

With reference to Fig. 1, Fig. 2, the utility model is made up of pulse generation and shaping circuit 1, rest-set flip-flop 2, power amplification circuit 3, power circuit 4, loudspeaker 5, audio amplifier 6, string big gun 7, igniter 8 etc.Audio amplifier 6 is by the plank manufacturing, and profile is a garden shape, and decorative appearance becomes the bundle firecrackers shape of 90,000 (or other specifications); Except that loudspeaker are installed, electronic circuit board and rectifier transformer are installed also in the audio amplifier 6, the potentiometer W1 in the power circuit 4 can be installed on the panel of audio amplifier 6, regulates the speed that W1 can change " firecrackers sound ".Need as the user, also can adorn a micro-blower at audio amplifier 6 back sides and blow out flying chip realization " completely red ".Hang a string big gun 7 below the audio amplifier 6, this string big gun 7 is made by plastics, and the size of string big gun and length are looked the different product specification and different; String big gun 7 is false big guns, and the inside does not have gunpowder, does not blast.Igniter 8 hangs over string big gun 7 lower ends, and the flame agent of sending out by the garden cylindricality metal shell that is drilled with many apertures and inside being contained in is formed.The agent of igniting after-fume is sent dense smoke and is not had flame, also can send fragrance, and igniting agent is nontoxic material.

With reference to Fig. 3, pulse generation and shaping circuit 1 comprise not gate A1, A2, capacitor C 1～C3, resistance R 1, R2, R6 etc.; RS circuits for triggering 2 comprise NAND gate F1, F2, not gate A3, A4, capacitor C 4, resistance R 3, R5 etc.; Power amplification circuit 3 comprises IC 1, capacitor C 5, C6 etc.; Power circuit 4 comprises transformer B, rectifier bridge Z, electric capacity R4, LED 1, potentiometer W1 etc.

The key of this circuit is ingenious the utilization on the rest-set flip-flop.As the R of RS circuits for triggering 2, when the S input is all high level, its output state is constant, and when being all low level, its output state is indefinite.1 pin of F1, F2 in the RS circuits for triggering 2 is joined, and under the pulse signal control that is produced by pulse generation and shaping circuit 1, then the waveform of its output is irregular and at random, and amplifies back promotion loudspeaker through IC1 and send to exactly like and light firecrackers sound.The sound that produces with sort circuit never has the sensation that repeats.Not gate A1, resistance R 6 etc. can produce pulse signal in addition, deliver to input 1 pin of F1, F2 through the A2 shaping.The output of power circuit provides dc source via potentiometer W1 to pulse signal generation and shaping circuit and RS circuits for triggering.

The utility model has following advantage compared to existing technology:

1. all closely similar with traditional firecrackers from sound to the profile, sound is sustainable constantly and do not have the sensation that repeats, and the speed of the sound can be regulated, and also produces smog in the time of sounding, and can emit fragrance.

2. simple in structure, circuit is reasonable, and is with low cost, be perfectly safe, supplied by AC/DC electricity all can, can become the existing best substitute of firecrackers.

Claims

1, a kind of electronic firecracker, comprise power circuit 4, loudspeaker 5, string big gun 7, it is characterized in that: also have pulse generation and shaping circuit 1, RS circuits for triggering 2, power amplification circuit 3, audio amplifier 6, igniter 8, the pulse signal that pulse generation and shaping circuit 1 produce is delivered to RS circuits for triggering 2, and the output of RS circuits for triggering 2 is delivered to loudspeaker 5 by power amplification circuit 3.

2, firecrackers according to claim 1, it is characterized in that: audio amplifier 6 is made 90,000 bundle firecrackers shapes, loudspeaker 5 and electronic circuit board are installed in the audio amplifier 6, string big gun 7 adopts plastics to make, the inside hollow, igniter by the garden cylindricality metal shell that is drilled with many apertures and be contained in the inside smoke agent form.

3, firecrackers according to claim 1, it is characterized in that: the output of not gate A1 is joined by input 1 pin of NAND gate F1, F2 in capacitor C 2, not gate A2, resistance R 2 and the RS circuits for triggering 2 in pulse generation and the shaping circuit 1, input 2 pin of F1 and F2 export 3 pin and join, and connecing input 1 pin of computing amplification circuit IC1 by not gate A3, A4, resistance R 5, output 3 pin of IC1 connect loudspeaker 5 by capacitor C 6.