CN111246352B - Automatic adjust audio amplifier of volume - Google Patents

Abstract

The invention discloses a sound box capable of automatically adjusting volume, which comprises a sound box body, wherein a first cavity is arranged in the sound box body, main boxes capable of transmitting sound are symmetrically arranged at the left and right positions of the lower side of the first cavity in the sound box body, each main box comprises a fixed rod fixedly connected with the inner wall of each main box, the number of played sound boxes is increased through transmission of a guide rail shaft and the guide rail rods and pushing of an air cylinder, the purposes of enhancing sound transmission and increasing volume are achieved, meanwhile, directional sound transmission of the sound boxes is realized through a rotating shaft rotatably arranged between a disc base and the sound box body, and a permanent magnet is attracted to make a metal probe contact after an electromagnet is electrified so as to achieve the purpose of communicating a voice coil circuit and playing the sound.

Description

Automatic adjust audio amplifier of volume

Technical Field

The invention relates to the technical field of loudspeakers, in particular to a sound box capable of automatically adjusting volume.

Background

Ordinary audio amplifier is generally fixed, can't accomplish automatic directional broadcast according to people's needs, thereby make the sound of broadcast lower than usual, the transmission efficiency of sound has been reduced, the audio amplifier needs a plurality of speakers combined action if will increase the volume, but a plurality of speakers dress can cause the condition that the sound of propagating was offset and increase the consumption of audio amplifier cost in an audio amplifier, the audio amplifier mainly passes through the audio current and produces the magnetic field of change magnetic field and permanent magnet when passing through the voice coil loudspeaker voice coil and takes place interact, make the voice coil loudspeaker voice coil vibrate along the axial, thereby make sound, consequently the break-make of direct control voice coil loudspeaker voice coil circuit can the broadcast of effective control sound and the consumption of saving cost.

Disclosure of Invention

The invention aims to provide a sound box capable of automatically adjusting volume, which is used for overcoming the defects in the prior art.

The sound box capable of automatically adjusting the volume comprises a sound box body, wherein a first cavity is formed in the sound box body, main boxes capable of transmitting sound are symmetrically arranged on the left side and the right side of the lower side of the first cavity in the sound box body, each main box comprises a fixed rod fixedly connected with the inner wall of each main box, a fixed block fixedly arranged in the corresponding fixed rod, a magnet fixedly arranged on the left side of the corresponding fixed block, and a voice coil fixedly arranged on the left side of the corresponding magnet and capable of generating sound through interaction of the change of audio current and a magnetic field generated by the corresponding magnet, a circuit control device capable of controlling the circuit of a loudspeaker is arranged in each fixed rod, and the circuit control device comprises a first guide chute arranged in the corresponding fixed rod, a permanent magnet slidably arranged in the first guide chute, a telescopic rod connected with the right side of the permanent, The right side of the first cavity is provided with a second guide chute, a rack is arranged in the second guide chute in a sliding manner, the right side of the main box is provided with a piston cavity, the piston cavity is internally provided with a sliding block fixedly connected with the main box on the right side in a sliding manner, the left side of the main box is positioned in the sound box body and is symmetrically provided with a sound broadcasting pipe capable of transmitting sound emitted by the sound box out of the body and a sound returning pipe positioned on the lower side of the sound broadcasting pipe, the front side and the back side of the sound box body are symmetrically provided with a second cavity and a guide rail shaft rotatably arranged in the second cavity, the front side and the back side of the main box are symmetrically provided with guide rail rods which are abutted against the guide rail shaft and can drive the main box to slide up and down through the rotation of the guide rail shaft, the sound box body is provided with a disc base capable of fixing the sound box body and controlling the sound direction, the loudspeaker box body and the disc base are rotatably provided with a first rotating shaft, and the lower side of the first rotating shaft is located in the disc base and is dynamically connected with a first motor.

On the basis of the technical scheme, the left side of the main box is provided with an echo hole communicated with the echo tube, the left side of the voice coil is fixedly provided with a sound frame, and a spring is connected between the sound frame and the voice coil.

On the basis of the technical scheme, the voice coil loudspeaker voice coil downside is connected with first wire, first wire downside is equipped with first metal probe, be equipped with in the dead lever and pass through the wire with external signal and convey in the voice coil loudspeaker voice coil and make the terminal that the voice coil loudspeaker voice coil obtained the electric current, the terminal upside is connected with the second wire, second wire upside is equipped with second metal probe, the electro-magnet with be connected with reset spring between the permanent magnet, the permanent magnet left side is connected with the third wire, third wire front side be equipped with can with second metal probe with thereby the third metal probe of first metal probe butt switch-on circuit.

On the basis of the technical scheme, a third cavity is arranged on the lower side of the first cavity, the front and rear positions of the third cavity are symmetrically arranged and fixedly mounted on the guide rail shaft, rollers are arranged on the left side and the right side of the guide rail shaft in a rotating mode and are arranged in the conveying belt, and the lower side of the guide rail shaft is located in the loudspeaker box body and is dynamically connected with a second motor.

On the basis of the technical scheme, a fourth cavity is arranged on the right side of the second guide chute, a second rotating shaft is installed in the fourth cavity in a rotating mode, a gear meshed with the right side of the rack is fixedly installed on the second rotating shaft, the rear side of the second rotating shaft is located on the rear side of the third motor, and the rack is located on the left side and the right side between the main boxes.

On the basis of the technical scheme, the right side of the sliding block is connected with a piston rod, and the right side of the piston rod is connected with a piston which is slidably installed in the piston cavity.

The invention has the beneficial effects that: the invention increases the number of the played sound boxes by the transmission of the guide rail shaft and the guide rail rod and the pushing of the cylinder so as to achieve the purposes of enhancing the sound transmission and increasing the volume, realizes the directional sound transmission of the sound boxes by the rotating shaft which is rotatably arranged between the disc base and the sound box body, and attracts the permanent magnet to contact the metal probe after the electromagnet is electrified so as to achieve the purposes of communicating the voice coil circuit and playing the sound.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic view of an overall structure of an automatic volume adjusting sound box according to the present invention;

FIG. 2 is a schematic view of the structure in the direction "A-A" of FIG. 1;

FIG. 3 is an enlarged schematic view of "C" in FIG. 1;

fig. 4 is an enlarged structural view of "D" in fig. 3.

Detailed Description

The invention will now be described in detail with reference to fig. 1-4, for convenience of description, the following orientations will now be defined: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.

Referring to fig. 1 to 4, the sound box capable of automatically adjusting volume according to an embodiment of the present invention includes asound box body 11, afirst cavity 12 is disposed in thesound box body 11, amain box 17 capable of transmitting sound is disposed in thesound box body 11 at left and right positions below thefirst cavity 12, themain box 17 includes afixing rod 52 fixedly connected to an inner wall of themain box 17, afixing block 51 fixedly disposed in thefixing rod 52, amagnet 48 fixedly disposed at left side of thefixing block 51, and a voice coil 47 fixedly disposed at left side of themagnet 48 and capable of generating sound by interacting with a magnetic field generated by themagnet 48 according to a change of audio current, acircuit control device 901 capable of controlling a speaker circuit to be connected is disposed in thefixing rod 52, thecircuit control device 901 includes a first sliding guide slot 62, a second sliding guide slot 62, and a third sliding slot 62 disposed, Slidable mounting is inpermanent magnet 60 in the first guide chute 62, with telescopic link 61 that thepermanent magnet 60 right side is connected, with the electro-magnet 63 that telescopic link 61 right side is connected,first cavity 12 right side is equipped withsecond guide chute 18, slidable mounting hasrack 19 in thesecond guide chute 18,main tank 17 right side is equipped withpiston chamber 25, slidable mounting has and the right side inpiston chamber 25main tank 17 fixed connection's slidingblock 24,main tank 17 left side is located thesound box organism 11 is interior from top to bottom position symmetry be equipped with can with theouter broadcast pipe 13 of sound propagation play organism, be locatedbroadcast pipe 13downside echo pipe 14, the interior front and back position symmetry ofsound box organism 11 be equipped withsecond cavity 35, rotate and installguide rail axle 36 in thesecond cavity 35,main tank 17 front and back position symmetry be equipped withguide rail axle 36 butt and can pass through the rotation ofguide rail axle 36 drivesmain tank 17 is gliding from top to bottomGuide rail pole 41,audio amplifier organism 11 is equipped with and can fixesaudio amplifier organism 11 and through rotating thedisc base 28 ofaudio amplifier organism 11 control audio amplifier sound direction,audio amplifier organism 11 with rotate between thedisc base 28 and installfirst rotation axis 29,first rotation axis 29 downside is located power is connected withfirst motor 30 in thedisc base 28.

In addition, in one embodiment, the left side of themain box 17 is provided with aecho hole 15 communicated with theecho tube 14, the left side of the voice coil 47 is fixedly provided with avoice frame 43, and aspring 46 is connected between thevoice frame 43 and the voice coil 47.

In one embodiment, afirst lead 53 is connected to the lower side of the voice coil 47, afirst metal probe 54 is disposed on the lower side of thefirst lead 53, aterminal 58 capable of transmitting an external signal into the voice coil 47 through the lead and obtaining a current from the voice coil 47 is disposed in thefixing rod 52, asecond lead 57 is connected to the upper side of theterminal 58, asecond metal probe 56 is disposed on the upper side of thesecond lead 57, areturn spring 64 is connected between theelectromagnet 63 and thepermanent magnet 60, athird lead 59 is connected to the left side of thepermanent magnet 60, athird metal probe 55 capable of contacting thesecond metal probe 56 and thefirst metal probe 54 to complete a circuit is disposed on the front side of thethird lead 59, and when the voice coil circuit is completed, theelectromagnet 63 is energized to attract thepermanent magnet 60 to slide to the right side, and thethird lead 59 is driven to slide to the right side until thethird metal probe 55 and thefirst metal probe 54 are connected to the, Thesecond metal probe 56 is in contact with the voice coil circuit to be connected.

In addition, in an embodiment,first cavity 12 downside is equipped withthird cavity 31, the symmetry of position is equipped with fixed mounting aroundthird cavity 31 gyro wheel 34 on theguide rail axle 36, the left and right sides gyro wheel 34 rotates and installs inconveyer belt 32,guide rail axle 36 downside is located power connection hassecond motor 33 in theaudio amplifier organism 11, if will move leftmain tank 17 to the top, thensecond motor 33 startsguide rail axle 36 that drives the right side and rotates to drive gyro wheel 34 and rotate, drive leftguide rail axle 36 through the belt drive and rotate, thereby driveguide rail pole 41 upwards slip, drivemain tank 17 to the top, realized the purpose of transportation audio amplifier.

In addition, in an embodiment, afourth cavity 20 is disposed at the right side of the secondsliding guide slot 18, a second rotatingshaft 22 is rotatably mounted in thefourth cavity 20, agear 21 engaged with the right side of therack 19 is fixedly mounted on the second rotatingshaft 22, a third motor 23 is power-connected to the rear side of the second rotatingshaft 22 in thesound box body 11, and therack 19 is located between the left and rightmain boxes 17.

In addition, in an embodiment, the right side of thesliding block 24 is connected with apiston rod 26, the right side of thepiston rod 26 is connected with apiston 27 slidably mounted in thepiston cavity 25, if themain box 17 on the right side is to be sent to abut against the inner wall on the left side of thesound box body 11, the third motor 23 is started to drive the second rotatingshaft 22 to rotate, so as to drive thegear 21 to rotate, therack 19 is driven to slide upwards through the meshing between the gear and the rack, and simultaneously, the air in thepiston cavity 25 is compressed to drive thepiston 27 to push thesliding block 24 to slide leftwards, so as to push themain box 17 on the right side to slide leftwards to abut against the inner wall on the left side of the sound box.

In an initial state, therack 19 is located at the lower end of thesecond guide chute 18, the leftmain box 17 is located at the lower end of thefirst cavity 12, thepiston 27 is located at the right end of thepiston cavity 25, thethird metal probe 55 is not in contact with thefirst metal probe 54 and thesecond metal probe 56, and thepermanent magnet 60 is located at the left end of the first guide chute 62.

When the sound transmission direction needs to be changed, thefirst motor 30 is started to drive the first rotatingshaft 29 to rotate, so that thesound box body 11 is driven to rotate, and the purpose of directional sound box transmission is achieved.

When the sound needs to be played, theelectromagnet 63 is electrified to attract thepermanent magnet 60 to slide leftwards, so that thethird metal probe 55 is driven to be in contact with thefirst metal probe 54 and thesecond metal probe 56, a circuit is connected, and the purpose of playing the sound is achieved. When the transmission of sound and increase volume need be strengthened, third motor 23 starts to driverack 19 upwards to slide,second motor 33 starts to drive theguide rail axle 36 rotation of left and right sides simultaneously, thereby drivemain tank 17 upwards slide to withaudio amplifier organism 11 roof butt, and compress airpropelling sliding block 24 inpiston chamber 25 and slide left, thereby maintank 17 and the left wall butt ofaudio amplifier organism 11 on promotion right side, thereby increased the sound transmission source, realize the transmission of strengthening sound and the purpose of increase volume.

The invention has the beneficial effects that: the invention increases the number of the played sound boxes by the transmission of the guide rail shaft and the guide rail rod and the pushing of the cylinder so as to achieve the purposes of enhancing the sound transmission and increasing the volume, realizes the directional sound transmission of the sound boxes by the rotating shaft which is rotatably arranged between the disc base and the sound box body, and attracts the permanent magnet to contact the metal probe after the electromagnet is electrified so as to achieve the purposes of communicating the voice coil circuit and playing the sound.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (6)

1. The utility model provides an automatic audio amplifier of regulation volume, includes the audio amplifier organism, its characterized in that: the loudspeaker box comprises a loudspeaker box body, wherein a first cavity is arranged in the loudspeaker box body, a main box capable of transmitting sound is symmetrically arranged at the left side and the right side of the lower side of the first cavity in the loudspeaker box body, the main box comprises a fixed rod fixedly connected with the inner wall of the main box, a fixed block fixedly arranged in the fixed rod, a magnet fixedly arranged at the left side of the fixed block, and a voice coil fixedly arranged at the left side of the magnet and capable of generating sound through interaction between the change of audio current and the magnetic field generated by the magnet, a circuit control device capable of controlling the circuit of a loudspeaker is arranged in the fixed rod, the circuit control device comprises a first guide chute arranged in the fixed rod, a permanent magnet slidably arranged in the first guide chute, a telescopic rod connected with the right side of the permanent magnet, and an electromagnet connected with the right side of the telescopic rod, the loudspeaker box comprises a main box and a second guide chute, wherein a rack is arranged in the second guide chute in a sliding manner, a piston cavity is arranged on the right side of the main box, a sliding block fixedly connected with the main box is arranged in the piston cavity in a sliding manner, the left side of the main box is positioned in the loudspeaker box body, the upper part and the lower part of the main box are symmetrically provided with a sound broadcasting pipe capable of broadcasting sound emitted by a loudspeaker box outside the machine body and a sound returning pipe positioned on the lower side of the sound broadcasting pipe, the front part and the rear part of the loudspeaker box body are symmetrically provided with a second cavity and a guide rail shaft rotatably arranged in the second cavity, the front part and the rear part of the main box are symmetrically provided with guide rail rods which are abutted against the guide rail shaft and can drive the main box to slide up and down through the rotation of the guide rail shaft, the loudspeaker box body is provided with a disc base capable of, the lower side of the first rotating shaft is positioned in the disc base and is dynamically connected with a first motor.

2. The sound box of claim 1, wherein the sound volume is automatically adjusted by: the left side of the main box is provided with an echo hole communicated with the echo tube, the left side of the voice coil is fixedly provided with a sound frame, and a spring is connected between the sound frame and the voice coil.

3. The sound box of claim 1, wherein the sound volume is automatically adjusted by: the utility model discloses a voice coil loudspeaker voice coil, including the dead lever, the voice coil loudspeaker voice coil downside is connected with first wire, first wire downside is equipped with first metal probe, be equipped with in the dead lever and pass through the wire and convey external signal in the voice coil loudspeaker voice coil and make the voice coil loudspeaker voice coil obtains the terminal of electric current, the terminal upside is connected with the second wire, second wire upside is equipped with second metal probe, the electro-magnet with be connected with reset spring between the permanent magnet, the permanent magnet left side is connected with the third wire, third wire front side be equipped with can with second metal probe with thereby the third metal probe of first metal probe butt switch-on circuit.

4. The sound box of claim 1, wherein the sound volume is automatically adjusted by: the utility model discloses a loudspeaker box, including guide rail shaft, first cavity downside, fixed mounting, guide rail shaft, conveyer belt, guide rail shaft downside is located the internal power of audio amplifier is connected with the second motor, first cavity downside is equipped with the third cavity, the symmetry of position is equipped with fixed mounting around the third cavity the epaxial gyro wheel of guide rail, the left and right sides the gyro wheel rotates and installs in the conveyer belt, guide rail shaft downside is located the internal power.

5. The sound box of claim 1, wherein the sound volume is automatically adjusted by: the second guide chute right side is equipped with the fourth cavity, the second axis of rotation is installed to the fourth cavity internal rotation, in the second axis of rotation fixed mounting with the gear of rack right side meshing, second axis of rotation rear side position in power is connected with the third motor in the audio amplifier organism, the rack is located the left and right sides between the main tank.

6. The sound box of claim 5, wherein the sound volume is automatically adjusted by: the right side of the sliding block is connected with a piston rod, and the right side of the piston rod is connected with a piston which is slidably installed in the piston cavity.

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