CN207978123U

CN207978123U - Megaphone

Info

Publication number: CN207978123U
Application number: CN201820376796.4U
Authority: CN
Inventors: 璁搁『; 许顺
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-03-20
Filing date: 2018-03-20
Publication date: 2018-10-16
Anticipated expiration: 2028-03-20

Abstract

The utility model discloses a kind of megaphone, including shell, handle, loud speaker, microphone and control button plate, it is provided with control button on the control button plate, the control button outer rim is surrounded with transparent ring, it is additionally provided with light source on the inside of the control button plate, the light that the light source is sent out can pass through transparent ring, the microphone is double microphone microphones, it is connected with anti-self-oscillation circuit between two microphones, the accumulator selects lithium battery, the handle is removably arranged on the shell, it is provided with accumulator in the handle, there are two electric stakes for the handle upper end setting, there are two take electric piece with setting at electric stake opposite position on the shell, battery capacity is big, it is convenient that button and sound quality height are observed under dark surrounds.

Description

Megaphone

Technical field

The utility model is related to megaphone field more particularly to a kind of megaphones of electronics.

Background technology

Megaphone is the tool that commonly amplifies in people's life, and existing megaphone includes mainly shell, handle, raises one's voice Device, microphone and control button plate are equipped with battery inside the shell, since shell can be that the space that battery provides is smaller, Lead zinc battery is mainly used at this stage, and pollution is big, and reserve of electricity is small, replaces trouble, and available space is larger in handle, does not have but It is effectively utilized, and control button is inconvenient to observe under dark situations.

Invention content

It is an object of the invention to overcome deficiency in the prior art, provide a kind of battery capacity it is big, conveniently in dark ring Button and the good megaphone of sound quality are observed under border.

The utility model is achieved through the following technical solutions：A kind of megaphone, including shell, handle, loud speaker, wheat Gram wind and control button plate are provided with control button on the control button plate, and the control button outer rim is surrounded with Bright ring, the control button plate inside are additionally provided with light source, and the light that the light source is sent out can pass through transparent ring, the microphone For double microphone microphones, anti-self-oscillation circuit is connected between two microphones, the accumulator selects lithium battery, the handle Dismountable setting on the shell, is provided with accumulator, there are two electric stakes for the handle upper end setting, described outer in the handle There are two take electric piece with setting at electric stake opposite position on shell.

Further, the handle upper end is hinged with mounting base, and the mounting base upper end, which is provided with, to be used for and cage connection Track groove, the mounting base lower end is provided with U-shaped opening, and the handle upper end is hinged on by main shaft in U-shaped opening, the electricity Stake setting is extended in U-shaped opening bottom, the electricity stake upper end in track groove, and the handle upper end is provided with and electric stake lower end phase The electrode tip of cooperation.

Further, the track trench bottom is provided with clamping device, the clamping device include connection track groove with it is U-shaped The through-hole of opening, the through-hole lower end are provided with push rod, and the push rod upper end is provided with push plate, is set between the push plate and push rod It is equipped with resetting spring, the push plate upper end is provided with stop block, and the stop block upper surface is towards the oblique of track groove input end Face, the through-hole upper end are provided with barrier plate, and the barrier plate is provided with for the pilot hole across stop block, on the handle End is cam-like, and the handle can push stop block to be moved upward to beyond through-hole during along main axis.

Further, it is provided with compression spring between the push plate and barrier plate.

Further, the handle upper end both sides are provided with the opening that section is major arc, and the arc angle of major arc is 200-220 °, It is provided between the U-shaped opening both wings and the matched gag lever post for being limited to handle that is open.

Further, the opening inner wall is additionally provided with cushion.

Further, the track groove inner end closing, track groove inner end is additionally provided with shrapnel.

The beneficial effects of the utility model are：Be arranged it is transparent change and light source, under dark surrounds easy-to-look-up control press Button is conveniently operated；Lithium battery is selected, it is small, power capacity is big, and environmental protection；The double microphones of setting and anti-self-oscillation circuit, energy Enough improve the sound quality of microphone acquisition sound；Accumulator is mounted in handle, it is big for the space that utilizes, it can place larger The battery of volume and capacity, improves battery replacement cycle, and handle can removably be realized more with cage connection, replacement handle Change accumulator, fast and easy；Mounting base is set, the replacement between handle and shell is facilitated；Clamping device is set, can prevent from pacifying Seat and handle is filled to be detached from shell.

Description of the drawings

Fig. 1 is intended to for 1 structural diagrams of embodiment；

Fig. 2 is mounting base and handle connection relation sectional view schematic diagram；

Fig. 3 is base vertical view schematic diagram；

Fig. 4 is anti-self-oscillation circuit circuit diagram；

Fig. 5 is partial enlarged view schematic diagram at A；

Wherein：1- shells, 2- handles, 3- mounting bases, 4- main shafts, 5- sound holes, 6- control button plates, 7- control buttons, 8- Track groove, 9- shrapnels, 10- electricity stakes, 11-U types opening, 12- gag lever posts, 13- push plates, 14- openings, 15- electrode tips, 16- push rods, 17- resetting springs, 18- stop blocks, 19- barrier plates, 20- compression springs, 21- cushions.

Specific implementation mode

The technical solution of the utility model is illustrated below in conjunction with specific embodiment.

Embodiment 1

As shown in Figs. 1-5, a kind of megaphone, including shell 1, handle 2, loud speaker, microphone and control button plate 6, outside Control button plate 6 is installed on shell 1, sound hole 5, control button 7 are provided on control button plate 6, control button 7 includes that switch is pressed Button, volume regulation button, light source switch button, 7 outer rim of control button is around transparent ring is fixed with, and 6 inside of control button plate is also Light source is installed, light source is LED lamp, and the light that light source is sent out can pass through transparent ring, light than it is dark in the case of, pass through light Source switch button opens light source, allows the operator to see clearly the mark on button, is conveniently operated.

Microphone is double microphone microphones, and anti-self-oscillation circuit is connected between two microphones, can prevent from impulsing certainly It dissipates one's fortune raw interference, improves the sound quality of microphone acquisition sound.

2 upper end of handle is hinged with mounting base 3, and 3 upper end of mounting base is integrally fixed with for the track groove 8 with cage connection, 1 lower end integrated injection molding of shell have with the 8 matched edge of a wing of track groove, by the cooperation of the edge of a wing and track groove 8 by mounting base 3 It is connect with shell 1,3 lower end of mounting base is provided with U-shaped opening 11, and 2 upper end of handle is hinged on by main shaft in U-shaped opening 11, handle 2 Accumulator is inside installed, accumulator uses lithium battery, and environmentally friendly and capacity is big, and voltage output is stablized, and there are two the installations of 2 upper end of handle Electric stake 10 corresponds to the anode and cathode of accumulator respectively, and electric stake 10 is mounted on 11 bottom of U-shaped opening, and 10 upper end of electric stake extends to In track groove 8,2 upper end of handle is equipped with and the matched electrode tip 15 in electric 10 lower end of stake, when handle 2 is vertical, 10 lower end of electric stake It is contacted with electrode tip 15, electrode tip 15 is connected to the electrode of accumulator, track trench bottom peace by the conducting wire being embedded in handle 2 Equipped with clamping device, clamping device includes the through-hole for being connected to track groove 8 and U-shaped opening 11, and through-hole lower end is coated with push rod 16, pushes away 16 lower face of bar is arc surface, and 16 upper end of push rod is equipped with push plate 13, resetting spring 17 is equipped between push plate 13 and push rod 16, 13 upper end of push plate is equipped with stop block 18,18 rectangular cross-section of stop block, and 18 upper surface of stop block is towards track groove input end Inclined-plane, through-hole upper end is equipped with barrier plate 19, and barrier plate 19 is provided with for the pilot hole across stop block 18, pilot hole and card Stops clearance fit is equipped with compression spring 20 between push plate 13 and barrier plate 19,2 upper end of handle is cam-like, and handle 2 is on edge Main shaft 4 can push stop block 18 to be moved upward to beyond through-hole during rotating, on shell 1 with 10 opposite position of electric stake Place's installation is provided on shell 1 with stop block 18 to corresponding groove, 8 inner end of track groove is closed, track groove 8 there are two electric piece is taken Inner end is also equipped with shrapnel 9.

2 upper end both sides of handle are provided with the opening 14 that section is major arc, and the arc angle of major arc is 200 °, 11 both wings of U-shaped opening it Between be equipped with be open the matched gag lever post 12 for limit to handle, be open inner wall be further fixed on cushion 21, limit Bar 12 is caught in opening 14, is limited to handle 2.

The handling mode of handle is as follows：Shell lower end is inserted by the edge of a wing in U-shaped opening, in this process, under shell End is pressed downward stop block, until the groove on shell is moved at stop block, stop block is under the promotion of resetting spring to moving up It is dynamic, shell is engaged, shell lower end compresses with shrapnel, electric piece is taken to be touched with electric staking at this time, when unloading handle, rotating handle to water Flat, corresponding gag lever post is caught in opening, at this point, at the nearly hub of handle upper end with push rod face, under the action of compression spring, Stop block moves down, and can remove mounting base and handle at this time.

Claims

1. a kind of megaphone, including shell, handle, loud speaker, microphone and control button plate, it is characterised in that：The control Control button is provided on button panel, the control button outer rim is surrounded with transparent ring, is gone back on the inside of the control button plate Be provided with light source, the light that the light source is sent out can pass through transparent ring, and the microphone is double microphone microphones, two microphones it Between be connected with anti-self-oscillation circuit, removably setting on the shell, is provided with accumulator, institute to the handle in the handle State accumulator and select lithium battery, handle upper end setting there are two electric stake, on the shell with set at electric stake opposite position Electric piece is taken there are two setting.

2. megaphone according to claim 1, it is characterised in that：The handle upper end is hinged with mounting base, the installation Seat upper end is provided with for the track groove with cage connection, and the mounting base lower end is provided with U-shaped opening, and the handle upper end passes through Main shaft is hinged in U-shaped opening, and in U-shaped opening bottom, the electricity stake upper end extends in track groove, described for the electricity stake setting Handle upper end is provided with and the matched electrode tip in electric stake lower end.

3. megaphone according to claim 2, it is characterised in that：The track trench bottom is provided with clamping device, described Clamping device includes the through-hole for being connected to track groove and U-shaped opening, and the through-hole lower end is provided with push rod, the push rod upper end setting There is push plate, be provided with resetting spring between the push plate and push rod, the push plate upper end is provided with stop block, on the stop block End face is towards the inclined-plane of track groove input end, and the through-hole upper end is provided with barrier plate, and the barrier plate is provided with for wearing The pilot hole of stop block is crossed, the handle upper end is cam-like, and the handle being capable of push card during along main axis Stops is moved upward to beyond through-hole.

4. megaphone according to claim 3, it is characterised in that：Compression bullet is provided between the push plate and barrier plate Spring.

5. megaphone according to claim 2, it is characterised in that：It is major arc that the handle upper end both sides, which are provided with section, The arc angle of opening, major arc is 200-220 °, is provided between the U-shaped opening both wings matched for limiting handle with opening The gag lever post of position.

6. megaphone according to claim 5, it is characterised in that：The opening inner wall is additionally provided with cushion.

7. megaphone according to claim 2, it is characterised in that：The track groove inner end closing, track groove inner end is also set It is equipped with shrapnel.