CN2199118Y - Multifunctional induction bicycle bell - Google Patents

Abstract

The utility model relates to a multifunctional induction bicycle bell. A circuit board is arranged in an upper cover, an induction tablet is arranged in a bar-shaped cavity at the joint of the upper and a lower covers, and the induction table and a lead wire of an induction socket are connected with the circuit board. Front ends of the upper and the lower covers are provided with a front shroud, the front shroud and a buzzer are embedded in annular grooves of the upper and the lower covers, a battery cabin is arranged in the lower cover, and the lower end of the outer part of the lower cover is connected with a fixing clamp through screws. The utility model can be fixed on the head of a bicycle and rings when a hand is laid on a casing and in the vicinity of the induction tablet. A lead wire is led from the induction socket to be connected with one random metal piece, and the utility model rings when a man approaches or contacts the utility model. The utility model can serve as a bicycle bell, a doorbell or a theft-prevention alarm.

Description

Multifunctional induction bicycle bell

The utility model relates to the electronic induction technical field.

Bicycle is as a kind of vehicle, and all very universal in the China and even the whole world, existing bicycle all is to form with the metallic material punch process, by manually reaching the purpose of striking bell, though cheap, often run into the stuck phenomenon of getting rusty, very inconvenient during use.

The purpose of this utility model is, provide a kind of can be simple to operate, convenient and practical again multi-functional induction bicycle bell.When this bicycle bell uses 1, hand need only be placed on it above shell, can send the tinkle of bells; 2, answer Kong Yinyi root plain conductor from responding to insert, be connected on the metal piece of bicycle, when any part of bicycle except that handgrip, tire, seat board is touched, will send the tinkle of bells, play theft-proof effect; 3, draw a plain conductor from the induction jack, be connected door lock or be fixed on the sheetmetal of door on (frame), can make induction type anti-theft alarm device or induction type doorbell usefulness again, will send the tinkle of bells automatically when the people comes close to or in contact with.

The accompanying drawing summary

Fig. 1 is a constructional drawing of the present invention

Fig. 2 is an electrical schematic diagram of the present invention

As shown in Figure 2, because there being a distribution capacity Co between inductor A and the ground, this electric capacity and L, C1, BG1 form electric capacity 3 points The formula oscillator, in the loop that is formed by Co, C1, L, see that from alternating current path Co and C1 contact, during unmanned close A, the Co capacity is littler, it is with after C1 connects, and is higher in the dividing potential drop at Co two ends, and lower in the dividing potential drop at C1 two ends, the higher high frequency voltage in C0 two ends feeds back to the BG1 base stage by C3, is enough to keep bikini oscillator and produces vibration. The at this moment voltage drop on the R3 is higher, then the BG2 conducting, the multiple tube cut-off that BG3, BG4 form, IC is because can not get the operating voltage no-output. During someone close A, the Co value increases, and the high frequency dividing potential drop at Co two ends diminishes, and can not keep BG1 by capacitor C 3 feedback BG1 base stage positive feedback voltages and produce vibration, BG1 failure of oscillation. The at this moment voltage drop on the R3 is littler, the BG2 cut-off, and the BG3BG4 conducting, thus the power supply of connection IC sends the tinkle of bells.

Implementation of the present utility model is, circuit card and induction coil are arranged on the loam cake internal fixation, difference pig-tail wire and buzzer phone on the circuit card, power supply, sensing chip links to each other, and sensing chip is arranged on, in the commissural bar shaped cavity in lower cover edge, sensing chip, the lead-in wire of induction jack all links to each other with induction point on the circuit card, the front end of upper and lower covers is provided with a front shroud, front shroud and buzzer phone are embedded in, in the circular groove of lower cover, in lower cover inside one battery compartment is set, outside lower end links to each other with geometrical clamp by screw, can be fixed on the handle-bar, on, lower cover is in conjunction with tight, and is waterproof, anti-dust storm.Hand is placed on and promptly sends the tinkle of bells on the shell near the sensing chip.Induction jack place can go between and link to each other with other metal piece, when the people leans on or contacting metal spare promptly sends the tinkle of bells.

The utility model is convenient and practical, and is simple in structure, easy to manufacture, and cost is low.And of many uses, can make bicycle bell, doorbell, anti-theft alarm etc.

Talk an embodiment below in conjunction with accompanying drawing 1

Among the figure: the 1st, circuit card, the 2nd, loam cake, the 3rd, output line, the 4th, front shroud, the 5th, buzzer phone, the 6th, lower cover, the 7th, battery, the 8th, screw, the 9th, geometrical clamp, the 10th, power lead, the 11st, induction jack, the 12nd, sensing chip, the 13rd, induction line, the 14th, inductance coil

Circuit card, induction coil are fixed in the loam cake, and sensing chip is arranged in the commissural bar shaped of the upper and lower covers chamber, and buzzer phone and front shroud are embedded in the circular groove of upper and lower covers front portion, load onto battery, first-class geometrical clamp.

Claims (1)

1. A kind of multi-functional induction bicycle bell, mainly form by loam cake, lower cover, circuit card, sensing chip, induction jack, buzzer phone, front shroud, geometrical clamp, it is characterized in that: in the commissural bar shaped cavity of upper and lower covers, a sensing chip is set, sensing chip links to each other with circuit card, the induction human body signal, the work of control buzzer phone; Other establishes an induction jack, and can draw lead from the induction jack and link to each other with other any metal piece, thus the induction human body signal, the work of distance control buzzer phone.

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