CN116112843B - Bone conduction earphone extension audio amplifier - Google Patents
Bone conduction earphone extension audio amplifier Download PDFInfo
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- CN116112843B CN116112843B CN202310391506.9A CN202310391506A CN116112843B CN 116112843 B CN116112843 B CN 116112843B CN 202310391506 A CN202310391506 A CN 202310391506A CN 116112843 B CN116112843 B CN 116112843B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The invention provides a bone conduction earphone expansion sound box, which relates to the field of bone conduction sound boxes, and comprises a base, wherein a first buffer device is fixedly arranged on the inner wall of the base, a second buffer device is fixedly connected to the top of the first buffer device, a placement device is fixedly connected to the top of the second buffer device, a sound absorbing device for absorbing inverted audio is arranged on the inner side of the placement device, and a sound guiding device for connecting bone conduction earphones is fixedly connected to the top of the placement device.
Description
Technical Field
The invention relates to the field of bone conduction sound boxes, in particular to a bone conduction earphone expansion sound box.
Background
One way of conducting sound waves to the inner ear: the sound wave directly makes perilymph wave through skull route, and activates the spiral device of cochlea to produce hearing. Bone conduction refers to the expansion of the surface of the host bone from the periphery of the implant bed and the proliferation of the oriented osteogenic precursor cells in the bone marrow into the surface of the implanted bone and its lacunae, producing osteoblasts to form new bone.
Bone conduction is a sound conduction mode, i.e. converting sound into mechanical vibrations of different frequencies, transmitting sound waves through the skull, bone labyrinth, inner ear lymph, screw, auditory center of a person. Compared with the classical sound conduction mode of generating sound waves through a vibrating diaphragm, bone conduction omits a plurality of sound wave transmission steps, can realize clear sound restoration in a noisy environment, and the sound waves cannot influence others due to diffusion in the air. Bone conduction techniques are classified into bone conduction speaker techniques for transmitting and listening to sounds, and bone conduction microphone techniques. The air conduction loudspeaker converts the electric signal into sound wave (vibration signal) and transmits the sound wave (vibration signal) to the auditory nerve. While bone conduction speakers are acoustic waves (vibration signals) converted from electrical signals, which are transmitted directly through bone to the acoustic nerve. Bone conduction microphone technology is used for receiving, i.e. collecting sound, with different transmission media for sound waves (vibration signals). The air conduction speech is the transmission of sound waves through the air to the microphone, while the bone conduction speech is directly transmitted through the bone.
Headphones manufactured using these bone conduction techniques are referred to as bone conduction headphones, and are also referred to as bone conduction headphones, bone induction headphones, bone conduction headphones, and bone sensing headphones.
In order to strengthen the function of bone conduction earphone, can set up the extension audio amplifier for it for bone conduction earphone can realize putting the function outward, and bone conduction earphone is with vibration transmission to the box on, makes the box vibrate, thereby makes the sound, and when the box outwards vocalizes, the audio frequency of inverting also can appear in the bottom of its audio amplifier, thereby influences the audio effect of normal audio frequency. In addition, when the sound box is sounding, the sound box can generate vibration, and the sound box and the contact surface generate impact due to the vibration of the sound box, so that the sound quality of the sound box is further poor due to the vibration.
Disclosure of Invention
In order to solve the technical problems, the invention provides a bone conduction earphone expansion sound box.
The invention provides a bone conduction earphone expansion sound box which comprises a base, wherein a first buffer device is fixedly arranged on the inner wall of the base, a second buffer device is fixedly connected to the top of the first buffer device, a placement device is fixedly connected to the top of the second buffer device, a sound absorbing device for absorbing inverted audio is arranged on the inner side of the placement device, and a sound guiding device for connecting bone conduction earphones is fixedly connected to the top of the placement device;
the sound absorbing device comprises a bottom plate and two side frames, wherein a shock absorbing component is arranged on the bottom plate, two ends of the shock absorbing component are fixedly connected to two opposite inner walls of the placement device, a plurality of guide frames which are uniformly arranged are arranged above the bottom plate, the top ends of the guide frames are composed of two inclined plates, the bottom of each inclined plate of each guide frame is a vertical plate guide frame, the outer surface of each inclined plate guide frame is fixedly connected with first sound absorbing cloth, the bottom of each guide frame is fixedly connected with an underframe, the bottom of each underframe is fixedly connected with the top of the bottom plate, two ends of the top of each underframe are respectively connected to the bottom one ends of the two adjacent guide frames, the underframe is of an unclosed annular structure, second sound absorbing cloths are fixedly connected to the inner walls of the underframe, the two side frames are respectively arranged on two sides of the guide frames, the bottom of each side frame is fixedly connected to the top of the underframe, the outer surface of each side frame is fixedly connected with third sound absorbing cloth, one end of each side frame, which is far away from the underframe, is fixedly connected with a connecting component, and one end of each connecting component is fixedly connected to the placement device.
Preferably, the first buffer device comprises a first mounting plate and a first connecting plate, wherein the bottom of the first mounting plate is fixedly connected to the bottom wall of the inner cavity of the base, two grooves formed in the first mounting plate are internally provided with first inserting rods fixedly connected with first telescopic rods, two first moving blocks are movably sleeved on the first inserting rods, first springs are fixedly connected to the side walls of the first moving blocks, the first springs are movably sleeved on the first inserting rods, one ends of the first springs are fixedly connected to the inner walls of the grooves of the first mounting plate, the first connecting plates are provided with two first connecting plates, the two ends of each first connecting plate are respectively and fixedly connected to the two first moving blocks, one side of each first connecting plate is provided with a first fixing block, the bottom of each first fixing block is fixedly connected to the top of the first mounting plate, each first telescopic rod is fixedly connected to the side wall of each first fixing block, and each telescopic end of each first telescopic rod is fixedly connected to the side wall of each first connecting plate.
Preferably, the second buffer device comprises a second mounting plate and a second connecting plate, the bottoms of the second mounting plate are fixedly connected to the tops of the two first connecting plates, two grooves formed in the second mounting plate are internally provided with second inserting rods, two second moving blocks are movably sleeved on the second inserting rods, second springs are fixedly connected to the side walls of the second moving blocks, the second springs are movably sleeved on the second inserting rods, one ends of the second springs are fixedly connected to the inner walls of the grooves of the second mounting plate, two second connecting plates are arranged, two ends of each second connecting plate are respectively fixedly connected to the two second moving blocks, one side of each second connecting plate is provided with a second fixing block, the bottoms of the second fixing blocks are fixedly connected to the tops of the second mounting plate, and second telescopic rods are fixedly connected to the side walls of the second fixing blocks.
Preferably, the placement device comprises a top plate and a placement box, the placement box is located right above the top plate, the bottom of the top plate is fixedly connected with the top of the second connecting plate, the four corners of the top plate are fixedly connected with third springs, the tops of the third springs are fixedly connected with the bottom of the placement box, the inner sides of the third springs are movably provided with third telescopic rods, the fixed ends of the third telescopic rods are fixedly connected with the top of the top plate, and the telescopic ends of the third telescopic rods are fixedly connected with the bottom of the placement box.
Preferably, the connecting assembly comprises a plugboard, the plugboard is movably inserted in a mounting groove formed in the inner wall of the placement box, a certain gap is formed between the top and the bottom of the plugboard and two opposite inner walls of the mounting groove respectively, two sides of the plugboard are fixedly connected with side plates, the side plates are movably arranged in grooves with the corresponding sizes formed in the inner walls of the mounting groove, fixing rods are movably inserted on the side plates, two ends of each fixing rod are fixedly connected to two opposite inner walls of the grooves in the side walls of the mounting groove respectively, a fourth spring is movably sleeved on each fixing rod, one end of each fourth spring is fixedly connected to the side plate, and the other end of each fourth spring is fixedly connected to the inner walls of the grooves in the side walls of the mounting groove.
Preferably, the shock-absorbing assembly comprises two inserted bars and two fourth telescopic bars, the two inserted bars are respectively movably inserted into two through holes formed in the bottom plate, two ends of each inserted bar are respectively fixedly connected to two opposite inner walls of the placement box, a fifth spring is movably sleeved at two ends of each inserted bar, one end of each fifth spring is fixedly connected to the inner wall of the placement box, the other end of each fifth spring is fixedly connected to the side wall of the bottom plate, the two fourth telescopic bars are respectively arranged on two sides of the bottom plate, one end of each fourth telescopic bar is fixedly connected to the side wall of the bottom plate, and the other end of each fourth telescopic bar is fixedly connected to the inner wall of the placement box.
Preferably, the sound guiding device comprises a sound guiding shell, the bottom of the sound guiding shell is fixedly connected to the top of the placement box, the two sides of the sound guiding shell are fixedly connected with mounting plates, a storage groove for placing the vibrating end of the bone conduction earphone is formed in the side wall of each mounting plate, and a limiting component for limiting the bone conduction earphone is mounted at the center of the side wall of the sound guiding shell.
Preferably, the limiting component comprises a connecting piece and a baffle, the connecting piece is fixedly connected to the side wall of the installation disc, one end of the connecting piece is fixedly connected with the baffle, the baffle is attached to the side wall of the installation disc, a movable plate is movably arranged in a groove formed in the side wall of the baffle, a plurality of universal balls are movably connected to the side wall of the movable plate, which is close to the installation disc, of the movable plate, a pressure spring is fixedly connected to the side wall, which is far away from the installation disc, of the movable plate, and one end of the pressure spring is fixedly connected to the bottom wall of the groove of the baffle.
Preferably, the connecting piece includes axis of rotation and rotor plate, the one end fixed connection of axis of rotation is on the mounting disc, and the recess internal activity of seting up at axis of rotation top is provided with flexible post, and the bottom fixedly connected with sixth spring of flexible post, the bottom fixedly connected with of sixth spring are in axis of rotation recess diapire, and the one end that the sixth spring was kept away from to flexible post is hemispherical, through-hole inner wall and the axis of rotation swing joint that rotor plate one end was seted up, and set up a plurality of evenly arranged's spacing groove that is used for the tip interlude of flexible post on the rotor plate through-hole inner wall, the one end fixed connection that the axis of rotation was kept away from to the rotor plate is on the baffle.
Compared with the related art, the bone conduction earphone expansion sound box provided by the invention has the following beneficial effects:
through the sound absorbing device who sets up, after the reverse sound moves down and strikes first sound absorbing cloth, part reverse sound is absorbed by first sound absorbing cloth, then, because the inclined plane at leading truck top, and reflection angle equals the incident angle, so reverse sound is launched to the perpendicular of leading truck on, reverse sound is absorbed by first sound absorbing cloth again, because a plurality of leading trucks evenly set up, so reverse sound can make the back and forth multiple reflection in the perpendicular of two adjacent leading trucks, thereby make reverse sound by the great attenuation in the contact with first sound absorbing cloth many times, finally, the reverse sound that does not get into the chassis, because the chassis is the cyclic annular structure of unclosed, so reverse sound can carry out multiple reflection in the chassis inboard, contact with second sound absorbing cloth many times through reverse sound, thereby absorb reverse sound, in addition, because reverse sound is at the impact to sound absorbing device's whole also can appear the vibration, under damper and coupling assembling's effect, thereby the reverse sound absorbing device is outer the vibrations of sound absorbing device and reverse sound's vibrations, through the damper and the effect that set up, make the vibration that the buffer device has more stable when using the vibration part.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:
fig. 1 is a schematic structural diagram of an expansion sound box of a bone conduction earphone provided by the invention;
FIG. 2 is an exploded view of the bone conduction headset extension speaker of FIG. 1;
FIG. 3 is a schematic view of the structure at D shown in FIG. 2;
FIG. 4 is a schematic view of the first buffer device shown in FIG. 2;
FIG. 5 is a schematic view of the second buffer device shown in FIG. 2;
fig. 6 is a schematic structural view of the sound absorbing device shown in fig. 2;
FIG. 7 is a schematic view of the structure of A shown in FIG. 6;
fig. 8 is a schematic view of the structure of B shown in fig. 6;
fig. 9 is a schematic structural view of C shown in fig. 6;
FIG. 10 is a schematic view of the mounting plate and spacing assembly of FIG. 2;
FIG. 11 is a schematic view of the baffle shown in FIG. 10 after rotation;
FIG. 12 is an exploded view of the connector shown in FIG. 10;
FIG. 13 is a schematic view of the baffle, movable plate and ball shown in FIG. 10;
fig. 14 is an exploded view of the flapper and ball of fig. 10.
Reference numerals in the drawings: 1. a base; 2. a bottom plate; 3. a guide frame; 4. a first sound-absorbing cloth; 5. a chassis; 6. a second sound-absorbing cloth; 7. a side frame; 8. a third sound-absorbing cloth; 9. a first mounting plate; 10. a first plunger; 11. a first moving block; 12. a first connection plate; 13. a first fixed block; 14. a first telescopic rod; 15. a first spring; 16. a second mounting plate; 17. a second plunger; 18. a second moving block; 19. a second spring; 20. a second connecting plate; 21. a second fixed block; 22. a second telescopic rod; 23. a top plate; 24. a third spring; 25. a third telescopic rod; 26. placing a box; 27. inserting plate; 28. a side plate; 29. a rod; 30. a fourth spring; 31. a receiving rod; 32. a fifth spring; 33. a fourth telescopic rod; 34. a sound guiding shell; 35. a mounting plate; 36. a storage groove; 37. a baffle; 38. a movable plate; 39. a pressure spring; 40. a universal ball; 41. a rotating shaft; 42. a telescopic column; 43. a sixth spring; 44. a rotating plate; 45. a limit groove; 46. and a mounting groove.
Detailed Description
The following description of preferred embodiments of the present invention is provided in connection with the accompanying drawings, and it is to be understood that the preferred embodiments described herein are for the purpose of illustration and explanation only and are not intended to limit the invention thereto.
As shown in fig. 1-14, a first buffer device is fixedly installed on the inner wall of a base 1, a second buffer device is fixedly connected to the top of the first buffer device, a placement device is fixedly connected to the top of the second buffer device, a sound absorbing device for absorbing reverse phase audio is installed on the inner side of the placement device, a sound guiding device for connecting bone conduction headphones is fixedly connected to the top of the placement device, the sound absorbing device comprises a bottom plate 2 and two side frames 7, a shock absorbing component is installed on the bottom plate 2, two ends of the shock absorbing component are fixedly connected to two opposite inner walls of the placement device, a plurality of guide frames 3 which are uniformly arranged are arranged above the bottom plate 2, the top ends of the guide frames 3 are composed of two inclined plates, the outer surfaces of the inclined plates of the guide frames 3 are fixedly connected with a first sound absorbing cloth 4, the bottom of the guide frame 3 is fixedly connected with the bottom frame 5, the bottom of the bottom frame 5 is fixedly connected with the top of the bottom plate 2, two ends of the top of the bottom frame 5 are respectively connected with one end of the bottom of two adjacent guide frames 3 in a propping mode, the bottom frame 5 is of an unclosed annular structure, the inner wall of the bottom frame 5 is fixedly connected with second sound absorbing cloth 6, two side frames 7 are respectively positioned at two sides of the guide frames 3, the bottom ends of the side frames 7 are fixedly connected with the top of the bottom frame 5, the outer surfaces of the side frames 7 are fixedly connected with third sound absorbing cloth 8, one end of the side frames 7, far away from the bottom frame 5, is fixedly provided with a connecting component, one end of the connecting component is fixedly connected with a placing device, after reverse sound moves downwards to strike the first sound absorbing cloth 4, part of the reverse sound is absorbed by the first sound absorbing cloth 4, then, due to the inclined surface at the top of the guide frame 3, and the reflection angle is equal to the incidence angle, the reverse sound is emitted to the vertical surface of the guide frame 3, the reverse sound is absorbed by the first sound absorbing cloth 4 again, the reverse sound can be reflected back and forth for a plurality of times on the vertical surface of the two adjacent guide frames 3 due to the uniform arrangement of the guide frames 3, so that the reverse sound is greatly weakened in the contact with the first sound absorbing cloth 4 for a plurality of times, finally, the reverse sound which is not eliminated enters the underframe 5, the underframe 5 is in an unclosed annular structure, the reverse sound can be reflected for a plurality of times on the inner side of the underframe 5, the reverse sound is absorbed by the contact of the reverse sound with the second sound absorbing cloth 6 for a plurality of times, in addition, the whole sound absorbing device can vibrate due to the fact that the reverse sound is impacted on the sound absorbing device, the vibration of the sound absorbing device is relieved under the action of the shock absorbing component and the connecting component, and the vibration of the sound absorbing device is opposite to the vibration of the reverse sound, and the vibration of the sound absorbing component is offset part is more stable when the device is used through the arranged shock absorbing component and the second buffer device;
the first buffer device comprises a first mounting plate 9 and a first connecting plate 12, wherein the bottom of the first mounting plate 9 is fixedly connected to the bottom wall of an inner cavity of the base 1, two grooves formed in the first mounting plate 9 are internally and fixedly connected with first inserting rods 10, two first telescopic rods 14 are movably sleeved on the side walls of the first inserting rods 10, first springs 15 are fixedly connected to the side walls of the first telescopic rods 11, the first springs 15 are movably sleeved on the first inserting rods 10, one ends of the first springs 15 are fixedly connected to the inner walls of the grooves of the first mounting plate 9, the first connecting plate 12 is provided with two, two ends of the first connecting plate 12 are respectively and fixedly connected to the two first telescopic rods 11, one side of the first connecting plate 12 is provided with a first fixed block 13, the bottom of the first fixed block 13 is fixedly connected to the top of the first mounting plate 9, the telescopic ends of the first telescopic rods 14 are fixedly connected to the side walls of the first connecting plate 12, the first moving plates drive the two first telescopic rods 11 to move through the first buffer device, and the first telescopic rods 15 are driven by the first moving plates to carry out telescopic shafts, so that the first springs 15 deform in Y-shaped vibration of a flexible shell 34;
the second buffer device comprises a second mounting plate 16 and a second connecting plate 20, the bottom of the second mounting plate 16 is fixedly connected to the tops of the two first connecting plates 12, two grooves formed in the second mounting plate 16 are fixedly connected with second inserting rods 17, two second moving blocks 18 are movably sleeved on the second inserting rods 17, second springs 19 are fixedly connected to the side walls of the second moving blocks 18, the second springs 19 are movably sleeved on the second inserting rods 17, one ends of the second springs 19 are fixedly connected to the inner walls of the grooves of the second mounting plate 16, the second connecting plates 20 are provided with two, two ends of each second connecting plate 20 are respectively fixedly connected to the two second moving blocks 18, one side of each second connecting plate 20 is provided with a second fixed block 21, the bottoms of the second fixed blocks 21 are fixedly connected to the tops of the second mounting plate 16, the telescopic ends of the second telescopic rods 22 are fixedly connected to the side walls of the second connecting plates 20, and when a sound guide shell 34 is horizontally arranged, the two second springs 23 drive the second connecting plates 20 to move along the second connecting plates, and the second connecting plates 20 move along the second connecting plates, so that the second vibrating shafts are deformed, and the second connecting plates are driven by the second vibrating shafts 34;
the placement device comprises a top plate 23 and a placement box 26, the placement box 26 is positioned right above the top plate 23, the bottom of the top plate 23 is fixedly connected with the top of the second connecting plate 20, the four corners of the top plate 23 are fixedly connected with third springs 24, the tops of the third springs 24 are fixedly connected to the bottom of the placement box 26, the inner sides of the third springs 24 are movably provided with third telescopic rods 25, the fixed ends of the third telescopic rods 25 are fixedly connected to the top of the top plate 23, the telescopic ends of the third telescopic rods 25 are fixedly connected to the bottom of the placement box 26, when the sound guide shell 34 vibrates vertically, the third springs 24 stretch, the third telescopic rods 25 stretch correspondingly, and vibration of the sound guide shell 34 in the vertical direction is relieved under the action of the third telescopic rods 25;
the connecting assembly comprises a plugboard 27, wherein the plugboard 27 is movably inserted into a mounting groove 46 formed in the inner wall of the placement box 26, a certain gap is formed between the top and the bottom of the plugboard 27 and two opposite inner walls of the mounting groove 46 respectively, two sides of the plugboard 27 are fixedly connected with side plates 28, the side plates 28 are movably arranged in grooves with the corresponding sizes formed in the inner walls of the mounting groove 46, fixing rods are movably inserted into the side plates 28, two ends of each fixing rod are respectively and fixedly connected to the two opposite inner walls of the grooves in the side walls of the mounting groove 46, a fourth spring 30 is movably sleeved on each fixing rod, one end of each fourth spring 30 is fixedly connected to the side plate 28, and the other end of each fourth spring 30 is fixedly connected to the inner walls of the grooves in the side walls of the mounting groove 46;
the shock-absorbing assembly comprises two inserted bars 29 and two fourth telescopic bars 33, wherein the two inserted bars 29 are respectively and movably inserted into two through holes formed in the bottom plate 2, two ends of each inserted bar 29 are respectively and fixedly connected to two opposite inner walls of the placement box 26, a fifth spring 32 is movably sleeved at two ends of each inserted bar 29, one end of each fifth spring 32 is fixedly connected to the inner wall of the placement box 26, the other end of each fifth spring 32 is fixedly connected to the side wall of the bottom plate 2, the two fourth telescopic bars 33 are respectively arranged on two sides of the bottom plate 2, one end of each fourth telescopic bar 33 is fixedly connected to the side wall of the bottom plate 2, and the other end of each fourth telescopic bar 33 is fixedly connected to the inner wall of the placement box 26;
the sound guiding device comprises a sound guiding shell 34, the bottom of the sound guiding shell 34 is fixedly connected with the top of a placing box 26, both sides of the sound guiding shell 34 are fixedly connected with a mounting plate 35, a storage groove 36 for placing the vibrating end of a bone conduction earphone is formed in the side wall of the mounting plate 35, a limiting component for limiting the bone conduction earphone is mounted in the center of the side wall of the sound guiding shell 34, the limiting component comprises a connecting piece and a baffle 37, the connecting piece is fixedly connected to the side wall of the mounting plate 35, one end of the connecting piece is fixedly connected with the baffle 37, the baffle 37 is attached to the side wall of the mounting plate 35, a movable plate 38 is movably arranged in a groove formed in the side wall of the baffle 37, a plurality of universal balls 40 are movably connected to the side wall of the movable plate 38, which is close to the side wall of the mounting plate 35, a pressure spring 39 is fixedly connected to the side wall of the movable plate 38, one end of the pressure spring 39 is fixedly connected to the bottom wall of the groove of the baffle 37, the connecting piece comprises a rotating shaft 41 and a rotating plate 44, one end of the rotating shaft 41 is fixedly connected to the mounting plate 35, a telescopic column 42 is movably arranged in a groove formed in the top of the rotating shaft 41, a sixth spring 43 is fixedly connected to the bottom of the telescopic column 42, the bottom of the sixth spring 43 is fixedly connected to the bottom wall of the groove of the rotating shaft 41, one end of the telescopic column 42 far away from the sixth spring 43 is hemispherical, the inner wall of a through hole formed in one end of the rotating plate 44 is movably connected with the rotating shaft 41, a plurality of uniformly arranged limiting grooves 45 for inserting the end of the telescopic column 42 are formed in the inner wall of the through hole of the rotating plate 44, one end of the rotating plate 44 far away from the rotating shaft 41 is fixedly connected to the baffle 37, two vibration ends of the bone conduction earphone are placed in the storage grooves 36 of the two mounting plates 35, then the baffle 37 is rotated, one end of the telescopic column 42 moves from the limiting grooves 45, the sixth spring 43 is compressed, along with the rotation of the baffle 37, the universal ball 40 rotates, when the rotating plate 44 is in a vertical state, the telescopic column 42 faces the other limiting groove 45, at this time, under the action of the sixth spring 43, one end of the telescopic column 42 moves into the other limiting groove 45, and under the action of the compressed pressure spring 39, the movable plate 38 and the universal ball 40 squeeze the vibration end of the bone conduction earphone, so that the vibration end of the bone conduction earphone clings to the bottom wall of the inner cavity of the storage groove 36, and the vibration transmission work of the bone conduction earphone is facilitated.
The working principle provided by the invention is as follows: when the device is used, two vibration ends of the bone conduction earphone are placed in the storage grooves 36 of the two mounting plates 35, then the baffle plate 37 is rotated, one end of the telescopic column 42 moves out of the limiting groove 45, the sixth spring 43 is compressed, the universal ball 40 rotates along with the rotation of the baffle plate 37, when the rotating plate 44 is in a vertical state, the telescopic column 42 faces the other limiting groove 45, at the moment, one end of the telescopic column 42 moves into the other limiting groove 45 under the action of the sixth spring 43, the movable plate 38 and the universal ball 40 press the vibration ends of the bone conduction earphone under the action of the compressed pressure spring 39, so that the vibration ends of the bone conduction earphone are tightly attached to the inner cavity bottom wall of the storage groove 36, the vibration transmission work of the bone conduction earphone is facilitated, when the device is used, the sound conduction shell 34 generates vertical vibration, the third spring 24 stretches, the third telescopic rod 25 stretches and contracts correspondingly, the vibration of the sound guide shell 34 in the vertical direction is relieved under the action of the third telescopic rod 25, when the sound guide shell 34 vibrates in the horizontal direction, the top plate 23 drives the two second connecting plates 20 to move, the second moving plates drive the two second moving blocks 18 to move, the second springs 19 deform, the second telescopic rod 22 stretches and contracts, so that the vibration intensity of the sound guide shell 34 in the X axis is relieved, in addition, the placing box 26 can drive the first connecting plates 12 to move through the second connecting plates 20, the second moving blocks 18 and the second mounting plates 16, the first moving plates drive the two first moving blocks 11 to move, the first springs 15 deform, the first telescopic rods 14 stretch and contract, the vibration intensity of the sound guide shell 34 in the Y axis is relieved, through buffering the sound guide shell 34 in all directions, thus, the vibrations of the sound guiding shell 34 are relieved, the tone quality is improved to a certain extent, in addition, after the reverse sound moves down and hits on the first sound absorbing cloth 4, part of the reverse sound is absorbed by the first sound absorbing cloth 4, then, because the inclined plane at the top of the guide frame 3 and the reflection angle are equal to the incidence angle, the reverse sound is emitted to the vertical plane of the guide frame 3, the reverse sound is absorbed by the first sound absorbing cloth 4 again, because a plurality of guide frames 3 are uniformly arranged, the reverse sound can make a round trip multiple reflections on the vertical planes of the two adjacent guide frames 3, thereby the reverse sound is greatly weakened in the contact with the first sound absorbing cloth 4 for multiple times, finally, the reverse sound which is not eliminated enters into the underframe 5, because the underframe 5 is of an unclosed annular structure, the reverse sound can make multiple reflections on the inner side of the underframe 5, thereby absorb the reverse sound through multiple contacts with the second sound absorbing cloth 6, in addition, because the reverse sound is absorbed on the vertical plane of the guide frame 3, the whole sound absorbing device can also vibrate, in the sound absorbing device, the fourth spring 30 and the fifth spring 32 take place, the fourth spring 33 plays a role of damping the vibration, and the vibration absorber is more stable in the vibration absorber, and the vibration absorber is set up by the fourth spring 33.
Finally, it should be noted that: the foregoing is merely a preferred example of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The bone conduction earphone expansion sound box is characterized by comprising a base (1), wherein a first buffer device is fixedly arranged on the inner wall of the base (1), a second buffer device is fixedly connected to the top of the first buffer device, a placement device is fixedly connected to the top of the second buffer device, a sound absorbing device for absorbing inverted audio is arranged on the inner side of the placement device, and a sound guiding device for connecting bone conduction earphones is fixedly connected to the top of the placement device;
the sound absorbing device comprises a bottom plate (2) and two side frames (7), damping components are installed on the bottom plate (2), two ends of the damping components are fixedly connected to two opposite inner walls of the placement device, a plurality of guide frames (3) which are uniformly arranged are arranged above the bottom plate (2), the top ends of the guide frames (3) are composed of two inclined plates, the bottoms of the inclined plates of the guide frames (3) are vertical plates, the first sound absorbing cloth (4) is fixedly connected to the outer surface of the guide frames (3), the bottom of the guide frames (3) is fixedly connected with an underframe (5), the bottom of the underframe (5) is fixedly connected to the top of the bottom plate (2), two ends of the top of the underframe (5) are respectively connected to one ends of the bottoms of the two adjacent guide frames (3), the underframe (5) are of an unclosed annular structure, the second sound absorbing cloth (6) is fixedly connected to the inner walls of the underframe (5), the two side frames (7) are respectively located on two sides of the guide frames (3), the bottom of the side frames (7) is fixedly connected to the bottom of the underframe (5) and the bottom of the underframe (7) is fixedly connected to the top of the underframe (7), and the side frame (7) is fixedly connected to one end of the underframe (8).
2. The bone conduction earphone extension loudspeaker box according to claim 1, wherein the first buffer device comprises a first mounting plate (9) and a first connecting plate (12), the bottom of the first mounting plate (9) is fixedly connected to the bottom wall of the inner cavity of the base (1), two grooves formed in the first mounting plate (9) are internally and fixedly connected with first inserting rods (10), two first moving blocks (11) are movably sleeved on the first inserting rods (10), first springs (15) are fixedly connected to the side walls of the first moving blocks (11), the first springs (15) are movably sleeved on the first inserting rods (10), one ends of the first springs (15) are fixedly connected to the inner walls of the grooves of the first mounting plate (9), the first connecting plates (12) are provided with two first connecting plates, two ends of each first connecting plate (12) are fixedly connected to the two first moving blocks (11), one side of each first connecting plate (12) is provided with a first fixing block (13), the bottoms of each first fixing block (13) is fixedly connected to the top of each first mounting plate (9), and the first side walls of each first connecting plate (14) are fixedly connected to the first connecting plates (14).
3. The bone conduction earphone extension loudspeaker box according to claim 2, wherein the second buffer device comprises a second mounting plate (16) and a second connecting plate (20), the bottom of the second mounting plate (16) is fixedly connected to the tops of the two first connecting plates (12), two grooves formed in the second mounting plate (16) are fixedly connected with second inserting rods (17), two second moving blocks (18) are movably sleeved on the second inserting rods (17), second springs (19) are fixedly connected to the side walls of the second moving blocks (18), the second springs (19) are movably sleeved on the second inserting rods (17), one ends of the second springs (19) are fixedly connected to the inner walls of the grooves of the second mounting plate (16), the second connecting plates (20) are provided with two, two ends of each second connecting plate (20) are fixedly connected to the two second moving blocks (18), one side of each second connecting plate (20) is provided with a second fixing block (21), the bottom of each second fixing block (21) is fixedly connected to the corresponding second side wall (22) of the second mounting plate (16), and the second side wall (22) is fixedly connected to the second connecting plate (22).
4. The bone conduction earphone extension audio amplifier of claim 3, wherein, placer includes roof (23) and places box (26), place box (26) are located directly over roof (23), roof (23) bottom and second connecting plate (20) top fixed connection, four bight in roof (23) top equal fixedly connected with third spring (24), the top fixed connection of third spring (24) is in the bottom of placing box (26), the inboard activity of third spring (24) is provided with third telescopic link (25), the stiff end fixed connection of third telescopic link (25) is in roof (23) top, the flexible end fixed connection of third telescopic link (25) is in the bottom of placing box (26).
5. The bone conduction earphone extension speaker of claim 4, wherein the connection assembly comprises a plugboard (27), the plugboard (27) is movably inserted into a mounting groove (46) formed in the inner wall of the placement box (26), a certain gap is formed between the top and the bottom of the plugboard (27) and two opposite inner walls of the mounting groove (46), two sides of the plugboard (27) are fixedly connected with side plates (28), the side plates (28) are movably arranged in grooves with the corresponding sizes formed in the inner walls of the mounting groove (46), fixing rods are movably inserted in the side plates (28), two ends of each fixing rod are fixedly connected to two opposite inner walls of the grooves formed in the side walls of the mounting groove (46), a fourth spring (30) is movably sleeved on each fixing rod, one end of each fourth spring (30) is fixedly connected to the side plates (28), and the other end of each fourth spring (30) is fixedly connected to the inner walls of the grooves formed in the side walls of the mounting groove (46).
6. The bone conduction earphone extension speaker of claim 5, wherein the shock-absorbing assembly comprises two inserting rods (29) and two fourth telescopic rods (33), the two inserting rods (29) are respectively movably inserted into two through holes formed in the base plate (2), two ends of each inserting rod (29) are respectively fixedly connected to two opposite inner walls of the placement box (26), a fifth spring (32) is movably sleeved at two ends of each inserting rod (29), one end of each fifth spring (32) is fixedly connected to the inner wall of the placement box (26), the other end of each fifth spring (32) is fixedly connected to the side wall of the base plate (2), the two fourth telescopic rods (33) are respectively arranged at two sides of the base plate (2), one end of each fourth telescopic rod (33) is fixedly connected to the side wall of the base plate (2), and the other end of each fourth telescopic rod (33) is fixedly connected to the inner wall of the placement box (26).
7. The bone conduction earphone extension loudspeaker box of claim 6, wherein the sound guiding device comprises a sound guiding shell (34), the bottom of the sound guiding shell (34) is fixedly connected to the top of the placement box (26), mounting plates (35) are fixedly connected to two sides of the sound guiding shell (34), a storage groove (36) for placing a vibrating end of the bone conduction earphone is formed in the side wall of the mounting plates (35), and a limiting component for limiting the bone conduction earphone is mounted in the center of the side wall of the sound guiding shell (34).
8. The bone conduction earphone extension audio amplifier of claim 7, wherein, limit assembly includes connecting piece and baffle (37), connecting piece fixedly connected with is on mounting disc (35) lateral wall, the one end fixedly connected with baffle (37) of connecting piece, baffle (37) are laminated with mounting disc (35) lateral wall mutually, the recess in the recess of seting up of baffle (37) lateral wall is interior movable plate (38), swing joint has a plurality of universal balls (40) on the lateral wall that movable plate (38) is close to mounting disc (35), fixedly connected with pressure spring (39) on the lateral wall that movable plate (38) kept away from mounting disc (35), pressure spring (39) one end fixedly connected with is in baffle (37) recess diapire.
9. The bone conduction earphone extension audio amplifier of claim 8, wherein, the connecting piece includes axis of rotation (41) and rotor plate (44), the one end fixed connection of axis of rotation (41) is on mounting disc (35), recess internal activity that axis of rotation (41) top was seted up is provided with telescopic column (42), the bottom fixedly connected with sixth spring (43) of telescopic column (42), the bottom fixedly connected with of sixth spring (43) is in axis of rotation (41) recess diapire, the one end that sixth spring (43) was kept away from to telescopic column (42) is hemispherical, through-hole inner wall and axis of rotation (41) swing joint that rotor plate (44) one end was seted up, and set up on rotor plate (44) through-hole inner wall a plurality of evenly arranged's limiting groove (45) that are used for the tip interlude of telescopic column (42), the one end that rotor plate (44) kept away from axis of rotation (41) is fixedly connected with on baffle (37).
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