A bone conduction earphone with an adjustable tightness structure

Abstract

The present invention relates to the field of bone conduction headphones, and more specifically, to a bone conduction headphone with an adjustable tension structure, comprising a headphone strap and a headphone body, the headphone body being provided with two support blocks fixedly connected to the two ends of the headphone strap, the headphone strap being U-shaped, the upper ends of both sides of the headphone strap being fixedly connected to support blocks, the two support blocks being provided with a slide groove on the adjacent side, the middle portion of the upper end of the headphone strap being fixedly connected to a fixed block, the fixed block being provided with a cavity, the cavity being provided with an elastic mechanism installed inside the cavity, and the elastic mechanism being connected to a twisting mechanism. The present invention provides an elastic mechanism on a fixed shell, the two connecting cords of the elastic mechanism being connected to the two sides of the headphone strap, and the elastic mechanism being connected to a twisting mechanism. When the clamping force of the headphone strap weakens later, the twisting mechanism can be used to drive the winding reel to rotate, so that the connecting cord is sleeved on the winding reel, so that the present invention can be tightly clamped on the user's head to avoid affecting the user's use.

Description

Technical Field

[0001] The present invention relates to the field of bone conduction earphones, in particular to a bone conduction earphone with a tightness adjustment structure. Background Art

[0002] Bone conduction is a method of sound conduction, which converts sound into mechanical vibrations of different frequencies and transmits sound waves through the human skull, bony labyrinth, inner ear lymph, spiral organ, and auditory center. Headphones made using bone conduction technology are called bone conduction headphones, also known as bone conduction headphones, bone-sensing headphones, bone conduction headphones, and bone sensing headphones.

[0003] Currently, most bone conduction headphones are put directly on the head when in use, and are clamped to the user's head only by the elastic force of the headphone strap itself. However, as the headphones are used more and more times, the clamping force of the headphone strap will weaken, which will cause the headphones to stick tightly to the user's head, affecting the use effect. After wearing the headphones, if the user is exercising at the same time, the middle part of the headphone strap will sink, which will cause the headphones to be misplaced, requiring staff to frequently straighten them, and at the same time, it will put a large load on the user's ears. Summary of the Invention

[0004] In response to the problems in the prior art, the present invention provides a bone conduction earphone with an adjustable tightness structure.

[0005] The technical solution adopted by the present invention to solve its technical problem is: a bone conduction earphone with an adjustable tension structure, including an earphone band and an earphone main body, the earphone main body is provided with two and respectively fixedly connected to the two end parts of the earphone band, the earphone band is a U-shaped structure, the upper ends of both sides of the inner side of the earphone band are fixedly connected with supporting blocks, and the two supporting blocks are provided with a sliding groove on the side close to each other, the middle part of the upper end of the earphone band is fixedly connected with a fixed block, the interior of the fixed block is provided with a cavity, the interior of the cavity is installed with an elastic mechanism, and the elastic mechanism is connected to a torsion mechanism, the back of the fixed block is installed with a supporting mechanism, the back of the upper end of the fixed block is fixedly connected with a mounting block, and the middle part of the mounting block is penetrated by an insertion rod.

[0006] Specifically, the tensioning mechanism includes a winding drum, the front and rear parts of the winding drum are fixedly connected with a baffle ring concentrically, the middle part of the winding drum is penetrated by and fixedly connected with a rotating rod, the back end of the rotating rod is inserted into the interior of the fixed block and the end is fixedly connected to a baffle, the baffle is rotatably connected to the interior of the fixed block, the front end of the rotating rod is penetrated by and rotatably connected to the front side wall of the cavity, and connecting ropes are fixedly connected to the outer walls of both sides of the winding drum, and the two connecting ropes extend to the outside of the fixed block and are symmetrically fixedly connected to the headphone band.

[0007] Specifically, the torsion mechanism includes a rotating disk, which is fixedly connected to the front end of the rotating rod of the loosening mechanism and rotatably connected to the front side wall of the fixed block, a first sliding cavity is opened inside both sides of the rotating disk, a through groove is opened on the front side walls of the two first sliding cavities, a fixed disk is fixedly connected to the front middle part of the rotating disk, a clamping groove is opened on the outer walls of both sides of the fixed disk, a second sliding cavity is opened inside both sides of the fixed disk, and a first slide is slidably connected to the interior of the two second sliding cavities, the two first slides are fixedly connected to the interior of the second sliding cavity by a fixing spring on the side where the two first slides are close to each other, the two first slides are fixedly connected to the arc plate by the second slide on the side where the two first slides are far away from each other, the two second slides are slidably connected between the second sliding cavity and the clamping groove on the same side, the backs of the two arc plates are fixedly connected to the third slide by a connecting plate, the two third slides are slidably connected to the interior of the first sliding cavity on the same side, the two third slides are fixedly connected to the second plug plate on the side where the two third slides are far away from each other, and the sides of the two second plug plates away from the third slide on the same side pass through the side wall of the first sliding cavity on the same side and are inserted into the interior of the fixed block.

[0008] Specifically, the support mechanism includes a mounting seat, the mounting seat is fixedly connected to the back of the fixed block, the upper end of the mounting seat is fixedly connected to a support plate, one end of the back of the insertion rod is inserted into the inside of the support plate, the inside of the mounting seat is rotatably connected to a rotating plate through a rotating shaft, the middle part of the back of the rotating plate is fixedly connected to a first plug-in plate, a plurality of through holes are opened at equal intervals on the first plug-in plate, a sleeve plate is sleeved on the outer side of the first plug-in plate and slidably connected, a positioning plate is inserted on the upper end side wall of the sleeve plate, and the positioning plate is inserted into the inside of the corresponding through hole at this time, and one end of the back of the sleeve plate is fixedly connected to the support rod.

[0009] Specifically, the two connecting ropes are both slidably connected to the fixed block, and the two connecting ropes are both slidably connected to the inside of the sliding groove on the supporting block on the same side.

[0010] Specifically, the two arc-shaped plates are both slidably connected to the outer side of the through slot on the same side, and a plurality of friction plates are fixedly connected at equal intervals to the side of the two arc-shaped plates away from the fixed disk.

[0011] Specifically, the two arc-shaped plates are located on the same center line, and the sizes of the two arc-shaped plates match the size of the card slot on the same side.

[0012] Specifically, the front of the rotating plate is a semi-cylindrical structure, and the front of the rotating plate is against the front inner wall of the mounting seat, and the upper end of the rotating plate is in contact with the upper inner wall of the mounting seat.

[0013] Beneficial effects of the present invention:

[0014] (1) The present invention provides an elastic mechanism on the fixed shell. The two connecting ropes of the elastic mechanism are respectively connected to the two sides of the headphone band, and the elastic mechanism is connected to a twisting mechanism. When the clamping force of the headphone band weakens in the later stage, the winding drum can be driven to rotate by the twisting mechanism, and the connecting rope can be connected to the winding drum, so that the present invention can be tightly clamped on the user's head to avoid affecting the user's use.

[0015] (2) The present invention provides a support mechanism on the fixed block. When in use, the sleeve of the support mechanism can be pulled and the support rod can be placed against the neck of the user to support the fixed block, i.e., the earphone strap, thereby preventing the earphone body from sliding and dislocating on the user's head and reducing the load on the user's ears. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below with reference to the accompanying drawings and examples.

[0017] Figure 1 A cutaway diagram provided for the present invention;

[0018] Figure 2 A front cross-sectional view of the supporting mechanism, the tightening mechanism and the twisting mechanism provided by the present invention on the fixed block;

[0019] Figure 3 for Figure 2 The area map at A in the middle;

[0020] Figure 4 A schematic diagram of the back external structure of the support mechanism and the twisting mechanism provided by the present invention on the fixed block;

[0021] Figure 5 for Figure 1 The area map at B in the middle;

[0022] Figure 6 A schematic diagram of the top view of the twisting mechanism provided by the present invention;

[0023] Figure 7 This is a schematic diagram of the rotating plate structure provided by the present invention.

[0024] In the figure: 1. earphone strap; 2. earphone body; 3. support block; 4. slide groove; 5. fixed block; 6. support mechanism; 61. mounting seat; 62. rotating shaft; 63. rotating plate; 64. sleeve plate; 65. through hole; 66. positioning plate; 67. support rod; 68. support plate; 69. first plug-in plate; 7. cavity; 8. tensioning mechanism; 81. winding drum; 82. retaining ring; 83. rotating rod; 84. retaining plate; 85. connecting rope; 9. twisting mechanism; 91. rotating plate; 92. first sliding cavity; 93. through groove; 94. fixing plate; 95. card slot; 96. second sliding cavity; 97. first slide plate; 98. fixed spring; 99. second slide plate; 910. arc plate; 911. friction plate; 912. connecting plate; 913. third slide plate; 914. second plug-in plate; 10. mounting block; 11. plug-in rod. Implementation Method

[0025] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0026] like Figure 1-Figure 7 As shown, the bone conduction earphone with an adjustable tension structure described in the present invention includes an earphone band 1 and an earphone main body 2, the earphone main body 2 is provided with two and respectively fixedly connected to the two end parts of the earphone band 1, the earphone band 1 is a U-shaped structure, the upper ends of both sides of the inside of the earphone band 1 are fixedly connected with supporting blocks 3, and the two supporting blocks 3 are provided with a slide groove 4 on the side close to each other, the middle part of the upper end of the earphone band 1 is fixedly connected with a fixing block 5, the interior of the fixing block 5 is provided with a cavity 7, the interior of the cavity 7 is provided with an elastic mechanism 8, and the elastic mechanism 8 is connected with a twisting mechanism 9, the back of the fixing block 5 is provided with a supporting mechanism 6, the back of the upper end of the fixing block 5 is fixedly connected with a mounting block 10, and the middle part of the mounting block 10 is penetrated by an insertion rod 11. When in use, the insertion rod 11 and the supporting mechanism 6 are connected to fix the state of the supporting mechanism 6.

[0027] Specifically, the tensioning mechanism 8 includes a winding drum 81, the front and rear parts of the winding drum 81 are fixedly connected to a baffle ring 82 concentrically, the middle part of the winding drum 81 passes through and is fixedly connected to a rotating rod 83, the back end of the rotating rod 83 is inserted into the interior of the fixed block 5 and the end is fixedly connected to a baffle 84, the baffle 84 is rotatably connected to the interior of the fixed block 5, the front end of the rotating rod 83 passes through and is rotatably connected to the front side wall of the cavity 7, and the outer walls on both sides of the winding drum 81 are fixedly connected to connecting ropes 85, and the two connecting ropes 85 are slidably connected to the fixed block 5, and the two connecting ropes 85 are slidably connected to the support block 3 on the same side. Inside the slide groove 4 on the upper, the two connecting ropes 85 extend to the outside of the fixed block 5 and are symmetrically fixedly connected to the headphone band 1; the torsion mechanism 9 includes a turntable 91, which is fixedly connected to the front end of the rotating rod 83 of the elastic mechanism 8 and is rotatably connected to the front side wall of the fixed block 5, and a first sliding cavity 92 is provided inside both sides of the turntable 91, and a through groove 93 is provided on the front side wall of the two first sliding cavities 92. A fixed plate 94 is fixedly connected to the middle of the front of the turntable 91, and a card slot 95 is provided on the outer walls of both sides of the fixed plate 94. A second sliding cavity 96 is provided inside both sides of the fixed plate 94, and the two The interior of the second sliding cavity 96 is slidably connected to a first slide plate 97, and the two first slide plates 97 are fixedly connected to the interior of the second sliding cavity 96 on the side close to each other by a fixing spring 98, and the two first slide plates 97 are fixedly connected to an arc plate 910 on the side away from each other by a second slide plate 99, and the two arc plates 910 are slidably connected to the outside of the through slot 93 on the same side, and a plurality of friction plates 911 are fixedly connected to the side of the two arc plates 910 away from the fixed disk 94 at equal intervals, and the two arc plates 910 are located on the same center line, and the sizes of the two arc plates 910 match the size of the slot 95 on the same side. The slides 99 are both slidably connected between the second sliding cavity 96 and the card slot 95 on the same side, and the back sides of the two curved plates 910 are fixedly connected to the third slide 913 through the connecting plate 912. The two third slides 913 are both slidably connected to the inside of the first sliding cavity 92 on the same side, and the two third slides 913 are fixedly connected to the second plug plate 914 on the side away from the third slide 913 on the same side. The two second plug plates 914 on the side away from the third slide 913 on the same side pass through the side wall of the first sliding cavity 92 on the same side and are inserted into the inside of the fixed block 5. When in use, the rotating rod 83 is rotated by the twisting mechanism 9 to facilitate winding the connecting rope 85, tightening the headphone strap 1, and increasing the clamping force of the headphone strap 1.

[0028] Specifically, the support mechanism 6 includes a mounting seat 61, which is fixedly connected to the back of the fixed block 5. The upper end of the mounting seat 61 is fixedly connected to a support plate 68. One end of the back of the insertion rod 11 is inserted into the inside of the support plate 68. The inside of the mounting seat 61 is rotatably connected to a rotating plate 63 through a rotating shaft 62. The front of the rotating plate 63 is a semi-cylindrical structure, and the front of the rotating plate 63 is against the front inner wall of the mounting seat 61. The upper end of the rotating plate 63 is in contact with the upper inner wall of the mounting seat 61. A first plug plate 69 is fixedly connected to the middle of the back side of the rotating plate 63, and a plurality of through holes 65 are opened on the first plug plate 69 at equal intervals. A sleeve plate 64 is sleeved and slidably connected to the outer side of the first plug plate 69, and a positioning plate 66 is inserted into the upper side wall of the sleeve plate 64, and the positioning plate 66 is inserted into the corresponding through hole 65 at this time. A support rod 67 is fixedly connected to one end of the back side of the sleeve plate 64, which is used to support the fixed block 5 and the headphone band 1 when in use to prevent the headphone body 2 from sliding on the user's head.

[0029] When in use, rotate the rotating plate 63 until the rotating plate 63 is stuck on the mounting seat 61, press the insertion rod 11, insert the insertion rod 11 on the support plate 68, fix the position of the rotating plate 63, unplug the positioning plate 66, pull the sleeve plate 64, adjust the length between the sleeve plate 64 and the rotating plate 63 according to the length of the user's neck, and then fix the position of the sleeve plate 64 at this time by the positioning plate 66, then put the earphone band 1 on the user's head, and stick the earphone body 1 to the outside of the user's ear hole to ensure that the support rod 67 is against the user's neck at this time, start the earphone body 2 by the switch, connect it to the electronic device, and start using it. During use, the support mechanism 6 will support the fixing block 5, that is, the earphone band 1, to prevent the sinking force of the earphone band 1 from acting entirely on the user's ears, thereby reducing the user's The load borne by the ear; later, when the clamping force of the headphone band 2 becomes weaker, use your fingers to squeeze the curved plate 910 to move the curved plate 910 in the direction close to the fixed plate 94 until the curved plate 910 is squeezed into the interior of the card slot 95. During this process, the curved plate 910 will drive the third slide plate 913 to slide inside the first sliding cavity 92 through the connecting plate 912, and retract the second plug plate 914 to the inside of the turntable 91, and the curved plate 910 continuously squeezes the fixed spring 98 through the second slide plate 99 and the first slide plate 97, and then twists the turntable 91. The turntable 91 drives the winding reel 81 to rotate in the cavity 7 through the rotating rod 83, and continuously winds the connecting rope 85 to tighten the headphone band 1. When used later, the elastic force of the connecting rope 85 and the headphone band 1 is used to clamp the present invention on the user's head.

[0030] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above-described embodiments. The above-described embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A bone conduction earphone with an adjustable tension structure, comprising an earphone strap (1) and an earphone body (2), characterized in that: The earphone body (2) is provided with two and respectively fixedly connected to the two ends of the earphone band (1), the earphone band (1) is in a U-shaped structure, the upper ends of both sides of the inner side of the earphone band (1) are fixedly connected with supporting blocks (3), and the two supporting blocks (3) are provided with a sliding groove (4) on the side close to each other, the middle part of the upper end of the earphone band (1) is fixedly connected with a fixing block (5), the interior of the fixing block (5) is provided with a cavity (7), the interior of the cavity (7) is provided with an elastic mechanism (8), and the elastic mechanism (8) is connected with a twisting mechanism (9), the back of the fixing block (5) is provided with a supporting mechanism (6), the back of the upper end of the fixing block (5) is fixedly connected with a mounting block (10), and the mounting block (10) is fixedly connected to the upper end of the fixing block (5). The middle part of the winding drum (81) is penetrated and inserted with an insertion rod (11); the elastic mechanism (8) includes a winding drum (81), the front and rear parts of the winding drum (81) are fixedly connected to a retaining ring (82) concentrically, the middle part of the winding drum (81) is penetrated and fixedly connected with a rotating rod (83), the back end of the rotating rod (83) is inserted into the interior of the fixed block (5) and the end is fixedly connected with a retaining plate (84), the retaining plate (84) is rotatably connected to the interior of the fixed block (5), the front end of the rotating rod (83) is penetrated and rotatably connected to the front side wall of the cavity (7), and the outer walls on both sides of the winding drum (81) are fixedly connected with a connecting rope (85), and the two connecting ropes (85) are extended to the outside of the fixed block (5) and are symmetrically fixedly connected to the headphone band (1);The twisting mechanism (9) includes a rotating disk (91), which is fixedly connected to the front end of the rotating rod (83) of the loosening mechanism (8) and rotatably connected to the front side wall of the fixed block (5). First sliding cavities (92) are provided inside both sides of the rotating disk (91), and through grooves (93) are provided on the front side walls of the two first sliding cavities (92). A fixed disk (94) is fixedly connected to the middle of the front of the rotating disk (91), and slots (95) are provided on the outer walls of both sides of the fixed disk (94). Second sliding cavities (96) are provided inside both sides of the fixed disk (94), and first slide plates (97) are slidably connected inside the two second slide plates (96). The two first slide plates (97) are fixedly connected to the inside of the second slide plates (96) on the sides close to each other through fixed springs (98). The two first slide plates (97) are fixedly connected to the inside of the second slide plates (96) on the sides away from each other through a second slide plate (99). The two second slide plates (99) are fixedly connected to the arc plate (910) on the sides away from each other. The two arc plates (910) are both slidably connected between the second sliding cavity (96) and the card slot (95) on the same side. The back sides of the two arc plates (910) are fixedly connected to the third slide plate (913) through the connecting plate (912). The two third slide plates (913) are both slidably connected to the inside of the first sliding cavity (92) on the same side. The two third slide plates (913) are fixedly connected to the second plug plate (914) on the side away from the third slide plate (913) on the same side. The two second plug plates (914) pass through the side wall of the first sliding cavity (92) on the same side and are inserted into the inside of the fixed block (5); the support mechanism (6) includes a mounting seat (61), the mounting seat (61) is fixedly connected to the back side of the fixed block (5), the upper end of the mounting seat (61) is fixedly connected to the support plate (68), one end of the back side of the insertion rod (11) is inserted into the inside of the support plate (68), and the inside of the mounting seat (61) is rotatably connected to the rotating plate (63) through the rotating shaft (62). A first plug plate (69) is fixedly connected to the middle of the back of the rotating plate (63), and a plurality of through holes (65) are opened on the first plug plate (69) at equal intervals. A sleeve plate (64) is sleeved and slidably connected to the outer side of the first plug plate (69), and a positioning plate (66) is inserted into the upper side wall of the sleeve plate (64), and the positioning plate (66) is inserted into the corresponding through hole (65). A support rod (67) is fixedly connected to one end of the back of the sleeve plate (64).

2. The bone conduction earphone with an adjustable tension structure according to claim 1, characterized in that: The two connecting ropes (85) are both slidably connected to the fixed block (5), and the two connecting ropes (85) are both slidably connected to the inside of the sliding groove (4) on the supporting block (3) on the same side.

3. The bone conduction earphone with an adjustable tension structure according to claim 1, characterized in that: The two arc-shaped plates (910) are both slidably connected to the outside of the through slot (93) on the same side, and a plurality of friction plates (911) are fixedly connected at equal intervals on the side of the two arc-shaped plates (910) away from the fixed disk (94).

4. The bone conduction earphone with an adjustable tension structure according to claim 1, characterized in that: The two arc-shaped plates (910) are located on the same center line, and the sizes of the two arc-shaped plates (910) match the size of the card slot (95) on the same side.

5. The bone conduction earphone with an adjustable tension structure according to claim 1, characterized in that: The front of the rotating plate (63) is a semi-cylindrical structure, and the front of the rotating plate (63) abuts against the front inner wall of the mounting seat (61), and the upper end of the rotating plate (63) contacts the upper inner wall of the mounting seat (61).

Images