Method for improving sound quality of bone conduction loudspeaker and bone conduction loudspeaker

Abstract

The invention relates to the field of bone conduction loudspeakers, in particular to a method for improving the tone quality of a bone conduction loudspeaker and the bone conduction loudspeaker, and the bone conduction loudspeaker comprises a shell mechanism, an elastic mechanism is arranged in the shell mechanism, and a bone conduction mechanism is slidably connected to the elastic mechanism. A pressing mechanism is arranged at the top end of the interior of the shell mechanism and abuts against the elastic mechanism, a positioning mechanism is arranged at the top end of the shell mechanism, the upper end of the positioning mechanism abuts against the pressing mechanism, the shell mechanism comprises a shell, a mounting groove is formed in the lower surface of the shell, and the pressing mechanism abuts against the mounting groove. The groove wall of the mounting groove is fixedly connected with a connecting wire, during use, the angle of the conduction piece can be adjusted through rotation of the ball in the ball hole, and the elasticity of the spring is enhanced by driving the lower pressing plate to descend; the spring pushes the conduction piece to be tightly attached to the skin of the human body surface, and the bone conduction effect is enhanced to enhance the tone quality.

Description

Technical Field

[0001] The present invention relates to the field of bone conduction loudspeakers, in particular to a method for improving the sound quality of a bone conduction loudspeaker and a bone conduction loudspeaker. Background Art

[0002] In the existing market, bone conduction technology is mostly used in the military market. At the same time, with the continuous in-depth research on the technology, it is gradually moving into people's daily lives. Since the sound transmission is achieved by vibration transmission, it has strong anti-interference ability and does not need to receive sound through the external auditory canal for transmission. In daily life, you can receive information from the outside world while freeing your ears. Existing bone conduction speakers (bone conduction vibrators with moving iron structures in the military field) cannot have the same frequency response curve as traditional speakers due to the constraints of their structure and material properties, which makes it difficult for them to have a place in the civilian market and their usage scenarios are greatly limited.

[0003] When in use, a bone conduction speaker is generally attached to the head next to the ear. However, this part of the human body is uneven due to the bones and the surface skin of the human body, so that the bone conduction patch cannot be tightly attached to the surface of the human body under the support of the outer shell, resulting in a significant decrease in the sound quality of the bone conduction speaker when in use. Therefore, it is necessary to propose a method for improving the sound quality of a bone conduction speaker and a bone conduction speaker. Summary of the invention

[0004] In view of the problems in the prior art, the present invention provides a method for improving the sound quality of a bone conduction speaker and a bone conduction speaker.

[0005] The technical solution adopted by the present invention to solve its technical problem is: a bone conduction speaker for improving the sound quality of the bone conduction speaker, including a shell mechanism, an elastic mechanism is arranged inside the shell mechanism, a bone conduction mechanism is slidably connected to the elastic mechanism, a downward pressing mechanism is arranged at the top end of the shell mechanism, the downward pressing mechanism is abutted against the elastic mechanism, and a positioning mechanism is arranged at the top end of the shell mechanism, and the upper end of the positioning mechanism is abutted against the downward pressing mechanism.

[0006] Specifically, the shell mechanism includes a shell, a mounting groove is opened on the lower surface of the shell, a connecting wire is fixedly connected to the groove wall of the mounting groove, one end of the connecting wire extends through the shell, and the other end of the connecting wire extends through the mounting groove, and a rubber sealing layer is fixedly connected to the groove opening of the mounting groove.

[0007] Specifically, the elastic mechanism includes two fixing rods, the two fixing rods are fixedly connected to the upper end groove wall of the mounting groove, and the lower ends of the two fixing rods are fixedly connected to a fixing plate, the two fixing plates are fixedly connected to the groove wall of the mounting groove, and a mounting plate is commonly provided at a position above the two fixing plates, and the mounting plate has two fixing holes penetrating at positions corresponding to the two fixing rods, the mounting plate is slidably connected to the two fixing rods through the two fixing holes, and the two fixing rods are each sleeved with a first spring, and the lower ends of the two first springs are both against the upper surface of the mounting plate.

[0008] Specifically, the bone conduction mechanism includes a ball hole, which is opened through the mounting plate, and a ball is rollingly connected in the ball hole, a conduction rod is fixedly sleeved in the ball, the upper end of the conduction rod extends through the mounting groove and is fixedly connected to a magnetic part, a protective shell is fixedly connected to the outer wall of the magnetic part, and the lower end of the conduction rod extends through the shell and is fixedly connected to a conduction sheet.

[0009] Specifically, the pressing mechanism includes a bearing, which is fixedly installed in the mounting groove at the center of the groove wall, and a threaded rod is fixedly sleeved in the bearing, the upper end of the threaded rod extends through and extends to the outside of the shell and is fixedly connected to a rotating decorative plate, and a layer of tooth pattern is provided on the outer wall of the rotating decorative plate, the lower end of the threaded rod extends through and extends into the mounting groove and is fixedly connected to a limit plate at the lower end, a threaded sleeve is threadedly connected to the rod wall of the threaded rod in the mounting groove, and a lower pressing plate is fixedly sleeved on the outer wall of the threaded sleeve, and two lower pressing holes are penetrated through the lower pressing plate, and the lower pressing plate is slidably connected to the two fixing rods through the two lower pressing holes, and the lower surface of the lower pressing plate is against the upper ends of the two first springs.

[0010] Specifically, the positioning mechanism includes two positioning grooves, the two positioning grooves are both provided on the upper surface of the shell, and a positioning toothed ring is fixedly connected to the lower surface of the rotating decorative plate corresponding to the position of the two positioning grooves, the groove bottoms of the two positioning grooves are both fixedly connected with a second spring, the upper ends of the two second springs are both fixedly connected with a positioning block, the upper ends of the two positioning blocks are both provided with a layer of tooth patterns and are both against the positioning toothed ring, a receiving groove is provided on the two positioning blocks, and a positioning hole is penetrated through the groove wall of the two positioning grooves, a positioning rod is slidably connected in the two positioning holes, one end of the two positioning rods is inclined and extends through the two receiving grooves respectively, the other ends of the two positioning rods extend through the outside of the shell, two sliding grooves are penetrated through the hole walls of the two positioning holes, a slider is slidably connected in the four sliding grooves, one end of the four sliders extends through the two positioning holes respectively, and one end of the four sliders located in the two positioning holes is fixedly connected to the two positioning rods respectively.

[0011] Specifically, one end of the connecting wire located in the installation groove is fixedly installed on the protective shell and connected to the magnetic component, and the rubber sealing layer is fixedly sleeved on the outer side wall of the conductive sheet.

[0012] A method for using a bone conduction speaker to improve the sound quality of the bone conduction speaker comprises the following steps: Step 1: First, wear the bone conduction speaker and make the shell contact with the human body surface. At the same time, the conduction sheet outside the shell contact with the human body surface skin, and the human body surface skin pushes the conduction sheet into the installation slot. At this time, the first spring pushes the installation plate, and the installation plate drives the ball through the ball hole, and the ball pushes the conduction sheet through the conduction rod. Due to the ups and downs of the human body surface skin, the conduction sheet will adjust its angle by the ball rotating in the ball hole under the support of the skin bulge and the subsequent push, so that the conduction sheet is tilted and closely attached to the human body surface skin. Step 2: Press the positioning rod into the positioning hole. The positioning rod can only move parallel to the limit of the slide groove and the slider. The positioning rod will contact the lower end notch of the storage groove through the inclined surface, and push the positioning block downward. The descent of the positioning block will release the engagement with the positioning toothed ring, thereby releasing the fixation of the rotating decorative plate. Step 3: At this time, the tooth pattern can be used to drive the rotating decorative plate to rotate, and the rotating decorative plate will drive the threaded rod to rotate, and the threaded rod will drive the lower pressure plate to descend by cooperating with the threaded sleeve, and the lowering of the lower pressure plate will squeeze the first spring, thereby enhancing the elasticity of the first spring, and causing the first spring to increase the pressure on the mounting plate, thereby increasing the downward pressure on the conductive sheet, so that it is more closely attached to the surface of the human body; Step 4: At this time, the positioning rod can be loosened, and the second spring will push the positioning block upward, and make the positioning block rise to the position against the positioning toothed ring, so that the rotating decorative plate can be fixed. At the same time, the positioning block will push the positioning rod out through the storage groove, and the rotating decorative plate will fix the threaded rod, thereby fixing the height of the lower pressure plate, thereby maintaining pressure on the first spring, the mounting plate and the conductive plate.

[0013] Beneficial effects of the present invention: (1) The method for improving the sound quality of a bone conduction speaker and the bone conduction speaker described in the present invention are provided with a shell mechanism, an elastic mechanism, a bone conduction mechanism, a pressing mechanism and a positioning mechanism. When in use, the bone conduction speaker is worn, and the conduction sheet located outside the shell is pressed against the skin on the surface of the human body, and the skin on the surface of the human body pushes the conduction sheet into the mounting groove. At this time, the first spring pushes the mounting plate, and the mounting plate drives the ball through the ball hole, and the ball pushes the conduction sheet through the conduction rod. Due to the undulation of the skin on the surface of the human body, the conduction sheet is supported by the skin protrusion and subsequently pushed, and the angle is adjusted by the ball rotating in the ball hole, so that the conduction sheet is tilted and closely attached to the skin on the surface of the human body, thereby enhancing the bone conduction effect and the sound quality.

[0014] (2) The method for improving the sound quality of a bone conduction speaker and the bone conduction speaker described in the present invention are provided with a shell mechanism, an elastic mechanism, a bone conduction mechanism, a pressing mechanism and a positioning mechanism. When in use, the positioning block is pushed down by pressing the positioning rod and the fixing of the rotating decorative plate is released. Then, the lower pressing plate is driven down by the rotating decorative plate and the first spring is squeezed. Then, the positioning rod is released. At this time, the second spring pushes the positioning block to return to its original position and fixes the rotating decorative plate. The lower pressing plate also keeps pressing down on the first spring. At this time, the first spring will exert pressure on the conduction sheet, so that the conduction sheet is more closely attached to the human body surface skin and the bone conduction effect is enhanced to enhance the sound quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0016] Figure 1 A schematic diagram of the standby state structure of a bone conduction speaker for improving the sound quality of the bone conduction speaker provided by the present invention; Figure 2 A schematic diagram of the structure of a bone conduction speaker in a wearing state for improving the sound quality of the bone conduction speaker provided by the present invention; Figure 3 A schematic diagram of the structure of a bone conduction speaker in a pressurized state for improving the sound quality of the bone conduction speaker provided by the present invention; Figure 4A schematic diagram of the structure of a bone conduction speaker in a pressurized wearing state for improving the sound quality of the bone conduction speaker provided by the present invention; Figure 5 A bone conduction speaker for improving the sound quality of a bone conduction speaker provided by the present invention Figure 2 A schematic diagram of the enlarged structure of part A; Figure 6 A schematic structural diagram of a bone conduction mechanism of a bone conduction speaker for improving the sound quality of a bone conduction speaker provided by the present invention; Figure 7 A schematic structural diagram of a rotating decorative plate of a bone conduction speaker for improving the sound quality of the bone conduction speaker provided by the present invention.

[0017] In the figure: 1. shell mechanism; 11. shell; 12. mounting groove; 13. connecting wire; 14. rubber sealing layer; 2. elastic mechanism; 21. fixing rod; 22. fixing plate; 23. mounting plate; 24. fixing hole; 25. first spring; 3. bone conduction mechanism; 31. ball hole; 32. ball; 33. conduction rod; 34. magnetic member; 35. protective shell; 36. conduction sheet; 4. pressing mechanism; 41. bearing; 42. threaded rod; 43. rotating decorative plate; 44. tooth pattern; 45. limit plate; 46. threaded sleeve; 47. pressing plate; 48. pressing hole; 5. positioning mechanism; 51. positioning groove; 52. positioning tooth pattern ring; 53. second spring; 54. positioning block; 55. storage groove; 56. positioning hole; 57. positioning rod; 58. slide groove; 59. slider. Implementation

[0018] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0019] like Figure 1-Figure 7 As shown, a bone conduction speaker for improving the sound quality of a bone conduction speaker according to the present invention comprises a shell mechanism 1, an elastic mechanism 2 is arranged inside the shell mechanism 1, a bone conduction mechanism 3 is slidably connected to the elastic mechanism 2, a pressing mechanism 4 is arranged at the top end inside the shell mechanism 1, the pressing mechanism 4 is abutted against the elastic mechanism 2, a positioning mechanism 5 is arranged at the top end of the shell mechanism 1, and the upper end of the positioning mechanism 5 is abutted against the pressing mechanism 4.

[0020] Among them, the shell mechanism 1 includes a shell 11, and a mounting groove 12 is opened on the lower surface of the shell 11. A connecting wire 13 is fixedly connected to the groove wall of the mounting groove 12. One end of the connecting wire 13 extends to the outside of the shell 11, and the other end of the connecting wire 13 extends to the inside of the mounting groove 12. A rubber sealing layer 14 is fixedly connected to the groove of the mounting groove 12.

[0021] Among them, the elastic mechanism 2 includes two fixing rods 21, the two fixing rods 21 are fixedly connected to the upper end groove wall of the mounting groove 12, and the lower ends of the two fixing rods 21 are fixedly connected to a fixing plate 22, the two fixing plates 22 are fixedly connected to the groove wall of the mounting groove 12, and a mounting plate 23 is commonly arranged at a position above the two fixing plates 22, and the mounting plate 23 has two fixing holes 24 penetrating the positions of the two fixing rods 21, and the mounting plate 23 is slidably connected to the two fixing rods 21 through the two fixing holes 24, and the two fixing rods 21 are sleeved with a first spring 25, and the lower ends of the two first springs 25 are both against the upper surface of the mounting plate 23.

[0022] Among them, the bone conduction mechanism 3 includes a ball hole 31, which is opened on the mounting plate 23, and a ball 32 is rollingly connected in the ball hole 31, and a conduction rod 33 is fixedly sleeved in the ball 32. The upper end of the conduction rod 33 extends through the mounting groove 12 and is fixedly connected to a magnetic part 34. A protective shell 35 is fixedly connected to the outer wall of the magnetic part 34, and the lower end of the conduction rod 33 extends through the shell 11 and is fixedly connected to a conduction sheet 36.

[0023] Among them, the pressing mechanism 4 includes a bearing 41, which is fixedly installed in the mounting groove 12 at the center of the groove wall, and a threaded rod 42 is fixedly sleeved in the bearing 41, the upper end of the threaded rod 42 extends through the outside of the shell 11 and is fixedly connected to a rotating decorative plate 43, and a layer of tooth pattern 44 is provided on the outer wall of the rotating decorative plate 43, the lower end of the threaded rod 42 extends through the mounting groove 12 and is fixedly connected to a limit plate 45 at the lower end, and a threaded sleeve 46 is threadedly connected on the rod wall of the threaded rod 42 located in the mounting groove 12, and a pressing plate 47 is fixedly sleeved on the outer wall of the threaded sleeve 46, and two pressing holes 48 are penetrated on the pressing plate 47, and the pressing plate 47 is slidably connected to the two fixing rods 21 through the two pressing holes 48, and the lower surface of the pressing plate 47 is against the upper ends of the two first springs 25.

[0024] The positioning mechanism 5 includes two positioning grooves 51, and the two positioning grooves 51 are both provided on the upper surface of the housing 11. A positioning toothed ring 52 is fixedly connected to the lower surface of the rotating decorative plate 43 corresponding to the position of the two positioning grooves 51. The groove bottoms of the two positioning grooves 51 are both fixedly connected with a second spring 53. The upper ends of the two second springs 53 are both fixedly connected with a positioning block 54. The upper ends of the two positioning blocks 54 are both provided with a layer of toothed patterns and are both against the positioning toothed ring 52. A receiving groove 55 is provided on the two positioning blocks 54, and a groove wall of the two positioning grooves 51 is penetrated with a There are two positioning holes 56, each of which is slidably connected to a positioning rod 57. One end of the two positioning rods 57 is arranged in an inclined shape and extends through the two receiving grooves 55 respectively. The other ends of the two positioning rods 57 extend to the outside of the shell 11. Two sliding grooves 58 are penetrated on the hole walls of the two positioning holes 56. A slider 59 is slidably connected in the four sliding grooves 58. One end of the four sliders 59 extends through the two positioning holes 56 respectively, and one end of the four sliders 59 located in the two positioning holes 56 is fixedly connected to the two positioning rods 57 respectively.

[0025] One end of the connecting wire 13 located in the installation groove 12 is fixedly mounted on the protective shell 35 and connected to the magnetic member 34 , and the rubber sealing layer 14 is fixedly sleeved on the outer side wall of the conductive sheet 36 .

[0026] A method for using a bone conduction speaker to improve the sound quality of the bone conduction speaker comprises the following steps: Step 1: First, wear the bone conduction speaker and make the shell 11 contact with the human body surface. At the same time, the conduction sheet 36 outside the shell 11 will contact with the human body surface skin, and the human body surface skin will push the conduction sheet 36 into the mounting groove 12. At this time, the first spring 25 will push the mounting plate 23, and the mounting plate 23 will drive the ball 32 through the ball hole 31, and the ball 32 will push the conduction sheet 36 through the conduction rod 33. Due to the ups and downs of the human body surface skin, the conduction sheet 36 will be supported by the skin protrusion and the subsequent push, and the ball 32 will rotate in the ball hole 31 to adjust its angle, so that the conduction sheet 36 is tilted and closely attached to the human body surface skin; Step 2: Press the positioning rod 57 into the positioning hole 56. The positioning rod 57 can only move parallel to the position of the slide groove 58 and the slider 59. The positioning rod 57 will abut against the lower end notch of the storage groove 55 through the inclined surface, and will push the positioning block 54 downward. The positioning block 54 will be released from the engagement with the positioning toothed ring 52 when it descends, thereby releasing the fixation of the rotating decorative plate 43. Step 3: At this time, the tooth pattern 44 can be used to drive the rotating decorative plate 43 to rotate, and the rotating decorative plate 43 will drive the threaded rod 42 to rotate, and the threaded rod 42 will drive the lower pressing plate 47 to descend by cooperating with the threaded sleeve 46, and the lowering of the lower pressing plate 47 will squeeze the first spring 25, thereby enhancing the elasticity of the first spring 25, and making the first spring 25 increase the pressure on the mounting plate 23, thereby increasing the downward pressure on the conductive sheet 36, so that it is more closely attached to the surface of the human body; Step 4: At this time, the positioning rod 57 can be loosened, and the second spring 53 will push the positioning block 54 upward, and make the positioning block 54 rise to abut against the positioning toothed ring 52, so that the rotating decorative plate 43 can be fixed. At the same time, the positioning block 54 will push the positioning rod 57 out through the storage groove 55, and at the same time, the rotating decorative plate 43 will fix the threaded rod 42, thereby fixing the height of the lower pressure plate 47, thereby maintaining the pressure on the first spring 25, the mounting plate 23 and the conductive sheet 36.

[0027] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A bone conduction speaker for improving the sound quality of a bone conduction speaker, comprising a housing structure (1), characterized in that: An elastic mechanism (2) is arranged inside the shell mechanism (1), a bone conduction mechanism (3) is slidably connected to the elastic mechanism (2), a pressing mechanism (4) is arranged at the top end inside the shell mechanism (1), the pressing mechanism (4) abuts against the elastic mechanism (2), and a positioning mechanism (5) is arranged at the top end of the shell mechanism (1), the upper end of the positioning mechanism (5) abuts against the pressing mechanism (4).

2. A bone conduction speaker for improving the sound quality of a bone conduction speaker according to claim 1, characterized in that: The housing mechanism (1) comprises a housing (11), a mounting groove (12) being provided on the lower surface of the housing (11), a connecting wire (13) being fixedly connected to the groove wall of the mounting groove (12), one end of the connecting wire (13) extending through the housing (11), and the other end of the connecting wire (13) extending through the mounting groove (12), and a rubber sealing layer (14) being fixedly connected to the groove opening of the mounting groove (12).

3. A bone conduction speaker for improving the sound quality of a bone conduction speaker according to claim 1, characterized in that: The elastic mechanism (2) comprises two fixing rods (21), the two fixing rods (21) are fixedly connected to the upper end groove wall of the mounting groove (12), and the lower ends of the two fixing rods (21) are fixedly connected to a fixing plate (22), the two fixing plates (22) are fixedly connected to the groove wall of the mounting groove (12), a mounting plate (23) is commonly provided at a position above the two fixing plates (22), two fixing holes (24) are penetrated through the mounting plate (23) at positions corresponding to the two fixing rods (21), the mounting plate (23) is slidably connected to the two fixing rods (21) through the two fixing holes (24), and a first spring (25) is sleeved on the two fixing rods (21), and the lower ends of the two first springs (25) are both against the upper surface of the mounting plate (23).

4. A bone conduction speaker for improving the sound quality of a bone conduction speaker according to claim 1, characterized in that: The bone conduction mechanism (3) comprises a ball hole (31), the ball hole (31) is formed through the mounting plate (23), and a ball (32) is rollingly connected in the ball hole (31), a conduction rod (33) is fixedly sleeved in the ball (32), the upper end of the conduction rod (33) extends through the mounting groove (12) and is fixedly connected to a magnetic member (34), a protective shell (35) is fixedly connected to the outer wall of the magnetic member (34), and the lower end of the conduction rod (33) extends through the housing (11) and is fixedly connected to a conduction sheet (36).

5. A bone conduction speaker for improving the sound quality of a bone conduction speaker according to claim 1, characterized in that: The pressing mechanism (4) comprises a bearing (41), the bearing (41) being fixedly mounted in the mounting groove (12) at the center of the groove wall, and a threaded rod (42) being fixedly sleeved in the bearing (41), the upper end of the threaded rod (42) extending through the housing (11) and fixedly connected to a rotating decorative plate (43), the outer wall of the rotating decorative plate (43) being provided with a layer of tooth pattern (44), the lower end of the threaded rod (42) extending through the mounting groove (12) and fixedly connected to the housing (11), A limit plate (45) is fixedly connected thereto; a threaded sleeve (46) is threadedly connected to the rod wall of the threaded rod (42) located in the mounting groove (12); a lower pressing plate (47) is fixedly sleeved on the outer wall of the threaded sleeve (46); two lower pressing holes (48) are formed through the lower pressing plate (47); the lower pressing plate (47) is slidably connected to the two fixed rods (21) through the two lower pressing holes (48); and the lower surface of the lower pressing plate (47) abuts against the upper ends of the two first springs (25).

6. A bone conduction speaker for improving the sound quality of a bone conduction speaker according to claim 1, characterized in that: The positioning mechanism (5) comprises two positioning grooves (51), the two positioning grooves (51) are both formed on the upper surface of the housing (11), a positioning toothed ring (52) is fixedly connected to the lower surface of the rotating decorative plate (43) corresponding to the positions of the two positioning grooves (51), the groove bottoms of the two positioning grooves (51) are both fixedly connected to a second spring (53), the upper ends of the two second springs (53) are both fixedly connected to a positioning block (54), the upper ends of the two positioning blocks (54) are both provided with a layer of toothed patterns and are both against the positioning toothed ring (52), the two positioning blocks (54) are both provided with a receiving groove (55), and the groove walls of the two positioning grooves (51) are both provided with a through-hole. The housing (11) comprises a plurality of positioning holes (56), each of the two positioning holes (56) being slidably connected to a positioning rod (57), one end of each of the two positioning rods (57) being arranged in an inclined shape and respectively extending through the two receiving grooves (55), and the other end of each of the two positioning rods (57) extending through the housing (11), two sliding grooves (58) being provided through the hole walls of the two positioning holes (56), each of the four sliding grooves (58) being slidably connected to a slider (59), one end of each of the four sliders (59) extending through the two positioning holes (56), and one end of each of the four sliders (59) being located in the two positioning holes (56) being fixedly connected to the two positioning rods (57).

7. A bone conduction speaker for improving the sound quality of a bone conduction speaker according to claim 2, characterized in that: One end of the connecting wire (13) located in the mounting groove (12) is fixedly mounted on the protective shell (35) and connected to the magnetic member (34), and the rubber sealing layer (14) is fixedly sleeved on the outer side wall of the conductive sheet (36).

8. A method for using a bone conduction speaker for improving the sound quality of a bone conduction speaker according to any one of claims 1 to 7, characterized in that: The following steps are involved: The first step: firstly, the bone conduction speaker is worn, and the housing (11) is pressed against the surface of the human body, and at the same time, the conduction sheet (36) located outside the housing (11) is pressed against the skin on the surface of the human body, and the skin on the surface of the human body pushes the conduction sheet (36) into the mounting groove (12), at which time the first spring (25) pushes the mounting plate (23), and the mounting plate (23) drives the ball (32) through the ball hole (31), and the ball (32) pushes the conduction sheet (36) through the conduction rod (33), and due to the ups and downs of the skin on the surface of the human body, at this time, the conduction sheet (36) is supported by the skin protrusion and is subsequently pushed, and the ball (32) rotates in the ball hole (31) to adjust its angle, so that the conduction sheet (36) is tilted and closely adheres to the skin on the surface of the human body; Step 2: Press the positioning rod (57) into the positioning hole (56), and the positioning rod (57) can only move parallel to the position of the slide groove (58) and the slider (59), and the positioning rod (57) will abut against the lower end notch of the storage groove (55) through the inclined surface, and will push the positioning block (54) downward, and the positioning block (54) will release the engagement with the positioning toothed ring (52) when it descends, thereby releasing the fixation of the rotating decorative plate (43); Step 3: At this time, the tooth pattern (44) can be used to drive the rotating decorative plate (43) to rotate, and the rotating decorative plate (43) will drive the threaded rod (42) to rotate, and the threaded rod (42) will drive the lower pressing plate (47) to descend by cooperating with the threaded sleeve (46), and the descent of the lower pressing plate (47) will squeeze the first spring (25), thereby enhancing the elasticity of the first spring (25), and causing the first spring (25) to increase the pressure on the mounting plate (23), thereby increasing the downward pressure on the conductive sheet (36), so that it is more closely attached to the surface of the human body; Step 4: At this time, the positioning rod (57) can be loosened, and the second spring (53) will push the positioning block (54) upward, and make the positioning block (54) rise to abut against the positioning toothed ring (52), so that the rotating decorative plate (43) can be fixed. At the same time, the positioning block (54) will push the positioning rod (57) out through the receiving groove (55), and the rotating decorative plate (43) will fix the threaded rod (42), thereby fixing the height of the lower pressure plate (47), thereby maintaining the pressure on the first spring (25), the mounting plate (23) and the conductive sheet (36).

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