CN202617316U

CN202617316U - Multifunctional megaphone

Info

Publication number: CN202617316U
Application number: CN 201120459277
Authority: CN
Inventors: 吴胜东
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-11-18
Filing date: 2011-11-18
Publication date: 2012-12-19
Anticipated expiration: 2021-11-18

Abstract

The utility model relates to the megaphone technology field and especially relates to a multifunctional megaphone. The megaphone comprises a shell, a power supply, a microphone, a power amplification circuit, a charging circuit, a loudspeaker, an illuminating lamp, an audible and visual alarm, a switch, a receiver and a remote controller which is provided with a transmitter. The receiver is connected with the transmitter through a wireless signal. The receiver comprises a coding switch, an integrated circuit, an antenna and the power amplification circuit. The coding switch, the antenna and the power amplification circuit are connected with the integrated circuit. The transmitter comprises the coding switch, the integrated circuit, the antenna and a mode selection circuit. The coding switch, the antenna and the mode selection circuit are connected with the integrated circuit. The multifunctional megaphone of the utility model has the following advantages that: a sound amplifying function of the common megaphone is possessed and an illumination function is also possessed; and a remote-control acousto-optic alarm function is possessed so that a user can be convenient to speak in various kinds of occasions and ask for help.

Description

Multi-functional megaphone

Technical field

The utility model relates to the megaphone technical field, is meant a kind of multi-functional megaphone especially.

Background technology

The megaphone of convention only has sound amplification function, after promptly amplifying voice signal through amplifier, through the loud speaker sounding; Thereby reach the purpose that increases volume, its circuit diagram mainly comprises microphone 3, charging circuit 4, loud speaker 5, lighting circuit 6, comparison circuit 7 shown in Fig. 6 to 8; During use; The user is through microphone 3 pickups, and after converting sound wave to the signal of telecommunication via IC, control loudspeaker 5 is reduced to sound wave; Said megaphone also can carry out certain illumination through lighting circuit 6, and charges through comparison circuit 7 and charging circuit 4; But the megaphone function singleness of prior art; Simple in structure; The miscellaneous function that does not have outbalance, during like the security personnel of community and parking lot security personnel's chance emergency, the tour conductor is when meeting with emergency case; The megaphone of prior art can't give the alarm, and particularly small and exquisite, the portable remote control that passes through makes megaphone report to the police.

The applicant utilizes its professional eye and professional knowledge because the disappearance and the inconvenience of above-mentioned convention megaphone are being adhered to the spirit that research is innovated, kept on improving, and works out a kind of multi-functional megaphone.

Summary of the invention

The purpose of the utility model is to overcome the deficiency of prior art, and a kind of multi-functional megaphone is provided.

The utility model is realized through following technical scheme, comprises shell, power supply, microphone, power amplification circuit, charging circuit, loud speaker, illuminating lamp, audible-visual annunciator, switch, also comprises receiver and a remote controller that is provided with transmitter; Said receiver is connected through wireless signal with transmitter.

Said receiver comprises code switch, integrated circuit (PT2294), antenna and power amplification circuit; Said code switch, antenna, power amplification circuit all link to each other with IC 1.

Said transmitter comprises code switch, integrated circuit (PT2264), antenna and mode selection circuit; Said code switch, antenna, mode selection circuit all link to each other with integrated circuit.

The advantage of the utility model is not only to have the sound amplification function of common megaphone, also has illumination functions, especially has the remote control acousto-optic warning function, and person easy to use propagandas directed to communicate and seeks help in various occasions.

Description of drawings:

Fig. 1 is the functional-block diagram of receiver;

Fig. 2 is the functional-block diagram of transmitter;

Fig. 3 is the circuit diagram of receiver;

Fig. 4 is the circuit diagram of transmitter;

Fig. 5 is the megaphone sketch map;

Fig. 6 is prior art circuits figure;

Fig. 7 is prior art speaker circuit figure;

Fig. 8 is the prior art block diagram.

Embodiment:

Preferred embodiment below in conjunction with 1 to 5 pair of the utility model of accompanying drawing is described further; The utility model comprises shell 9, microphone, charging circuit, loud speaker, lighting circuit, comparison circuit, also comprises receiver 2 and a remote controller that is provided with transmitter 1; Said receiver 2 and transmitter 1 are connected through wireless signal.

Said receiver 2 comprises code switch SW2 (DIP-8), IC 2 (PT2294), antenna 11 and power amplification circuit 22; Said code switch SW2, antenna 21, power amplification circuit 22 all link to each other with IC 2.

Said transmitter 1 comprises code switch SW1 (DIP-8), IC 1 (PT2264), antenna 11 and mode selection circuit 12; Said code switch SW1, antenna 11, mode selection circuit 12 all link to each other with IC 1.

The concrete structure of receiver 2 is following, and is as shown in Figure 3, and 1 pin of code switch SW2 links to each other 9 pin to 16 pin of code switch SW2 and 9 pin ground connection of IC 2 respectively with 8 pin with 1 pin, 8 pin of IC 2; 10,11,12 pin of IC 2 connect power amplification circuit 22; Wherein 10,11,12 pin connect resistance R 1, R7 respectively, R2, R6, R3, R5; Resistance R 1, R2, R3 distinguish ground connection and are connected power cathode; Positive source connects three switch A, B, C, and resistance R 5, R6, R7 connect switch C, B, A and corresponding diode cathode respectively, and each diode cathode connects 18 pin of IC 2; 17 pin of IC 2 connect antenna 21,14,15 pin and connect resistance R 4.

The concrete structure of transmitter 1 is following, and is as shown in Figure 4, and 1 pin of code switch SW1 links to each other with 8 pin with 1 pin of IC 1 respectively with 8 pin, 9 pin to 16 pin of code switch SW1 and 9 pin ground connection of IC 1; 10,11,12 pin connection modes of IC 1 are selected circuit 12; Wherein 10 pin connect resistance R 7; The other end of resistance R 7 connects base stage and the resistance R 8 of triode Q4, the grounded emitter of the other end of resistance R 8 and triode Q4, and collector electrode connects delay switch; 11 pin connect resistance R 5, and the other end of resistance R 5 connects base stage and the resistance R 6 of triode Q3, the grounded emitter of the other end of resistance R 6 and triode Q3, and collector electrode connects resistance R 9 and triode Q5, the grounded emitter of the other end of resistance R 9 and triode Q5; 12 pin connect resistance R 3, and the other end of resistance R 3 connects base stage and the resistance R 4 of triode Q2, the grounded emitter of the other end of resistance R 4 and triode Q2, and collector electrode connects resistance R 2 and triode Q1, the grounded emitter of the other end of resistance R 2 and triode Q1; 18 pin of IC 1 are through two capacity earths of parallel connection, and 17 pin connect antenna 11,14,15 pin and connect resistance R 1.

During use; This megaphone is except that accomplishing the function of propagandaing directed to communicate normally through microphone; Also can send wireless signal through the transmitter 1 of remote controller; The loud speaker that starts megaphones by receiver 2 sounds the alarm and lighting circuit is flashed, thereby lets other people can hear alarm song or see the warning photoflash lamp, can understand that the someone needs the assistance relief.

Said multi-functional megaphone also comprises following execution mode,

1. use in the time of need asking other people or neighbours to assist because of the bed old man who falls down or contract a serious illness suddenly;

2. the women that walks alone night meets to seize on both sides by the arms to steal can use when robbing and sends emergency sound and light signal;

Can use when 3. security personnel of community and parking lot security personnel meet emergency;

When 4. single villa needs neighbours to assist;

5. the tour conductor uses when meeting with emergency case;

6. disaster scene is caused to be used for calling out when having a power failure like earthquake, fire and is rescued or succour other people.

Hence one can see that, and the advantage of the utility model is not only to have the sound amplification function of common megaphone, also has illumination functions, especially has the remote control acousto-optic warning function, and person easy to use uses in various occasions.

The above embodiment has only expressed a kind of execution mode of the utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model claim.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model design, can also make some distortion and improvement, these all belong to the protection range of the utility model.Therefore, the protection range of the utility model patent should be as the criterion with accompanying claims.

Claims

1. multi-functional megaphone comprises shell, power supply, microphone, power amplification circuit, charging circuit, loud speaker, illuminating lamp, it is characterized in that: also comprise receiver and a remote controller that is provided with transmitter; Said receiver is connected through wireless signal with transmitter.

2. multi-functional megaphone according to claim 1 is characterized in that: said receiver comprises code switch, integrated circuit PT2294, antenna and power amplification circuit; Said code switch, antenna, power amplification circuit all link to each other with IC I.

3. multi-functional megaphone according to claim 1 is characterized in that: said transmitter comprises code switch, integrated circuit PT2264, antenna and mode selection circuit; Said code switch, antenna, mode selection circuit all link to each other with integrated circuit.