Noise reduction structure of Bluetooth earphone

Abstract

The utility model discloses a bluetooth earphone noise reduction structure, comprising a housing, a sound production assembly, a soft cushion, a head band assembly and an adjusting assembly, the sound production assembly is arranged on one side of the housing, the soft cushion is arranged on one side of the housing, the head band assembly is arranged above the housing, the adjusting assembly is arranged on one side of the head band assembly, and the adjusting assembly is arranged on the other side of the head band assembly. A gear, a rack and a headband assembly are fixedly connected, a connecting plate is fixedly connected with the headband assembly, a rotating shaft is rotationally connected with a fixing sleeve, and the rotating shaft is fixedly connected with the gear, so that when the headband assembly needs to be adjusted, a rotating handle is rotated to drive the gear to synchronously rotate through the rotating shaft, and the gear drives the rack to do telescopic motion; the rack drives the head band assembly to synchronously stretch out and draw back, through meshing resistance of the gear and the rack, the head band does not loosen when stretching out and drawing back, and the device solves the problem that the head band stretches out and draws back and looses.

Description

TECHNICAL FIELD

[0001] The utility model relates to earphone technology specifically, and relates to a bluetooth earphone noise reduction structure. BACKGROUND

[0002] Earphone is a pair of conversion unit, it accepts from the electric telegraph sign of media player or receiver, utilizes the loudspeaker close to ear to translate into audible sound wave, earphone can separate with media player, can under not affecting the person, alone listens to the sound, also can separate the sound of surrounding environment.

[0003] The existing bluetooth earphone is in the process of using, when the external noise is reduced, the internal noise reduction chip usually generates the sound wave opposite to the outside and bounces back, thereby realizing the noise reduction, but the lower hertz sound cannot be filtered, leading to poor noise reduction effect, and although the head-mounted bluetooth earphone has the size function of telescopic adjustment, but in the process of using, automatic telescopic may occur, causing loosening, thereby needing to repeatedly adjust, causing inconvenient use. SUMMARY

[0004] In view of the problems in the prior art, the utility model provides a bluetooth earphone noise reduction structure to overcome the above technical problems existing in the prior art.

[0005] Therefore, the utility model adopts the specific technical scheme as follows:

[0006] A bluetooth earphone noise reduction structure, including shell, sound production subassembly, soft pad, headband assembly and adjusting assembly, sound production subassembly sets up at one side of shell, soft pad sets up at one side of shell, headband assembly sets up at the top of shell, adjusting assembly sets up at one side of headband assembly.

[0007] The utility model further discloses that adjusting assembly includes adjusting shell, gear, rack, connecting plate, pivot, fixed sleeve and handle, adjusting shell sets up at one side of headband assembly, gear sets up in the inside of adjusting shell, rack sets up at one side of gear and is connected through sawtooth engagement, connecting plate sets up at one side of gear, pivot sets up at the top of gear, fixed sleeve sets up at the top of adjusting shell, handle sets up at the top of fixed sleeve.

[0008] The utility model further discloses that sound production subassembly includes protection shell, sound absorbing cotton, shock absorbing cotton and loudspeaker, protection shell sets up at one side of shell, sound absorbing cotton sets up at the inboard of protection shell, shock absorbing cotton sets up at the inboard of sound absorbing cotton, loudspeaker sets up at the inboard of shock absorbing cotton.

[0009] The utility model further illustrates: the soft pad is arranged in one side of the shell, the inboard of soft pad is provided with sound insulation cover, the inboard of sound insulation cover is provided with sealing ring.

[0010] The utility model further illustrates: the soft pad is arranged in one side of the shell, the inboard of soft pad is provided with sound insulation cover, the inboard of sound insulation cover is provided with sealing ring.

[0011] The utility model further illustrates: the dust cover is arranged in one side of the shell, and the dust cover is connected with the sound-absorbing cotton.

[0012] The utility model further illustrates: the arc plate is rotatably connected with the mounting plate, the mounting plate is fixedly connected with the protective shell, the side band is fixedly connected with the rack, and the side band is fixedly connected with the connecting plate.

[0013] The utility model further illustrates: one end of the rotating shaft is fixedly connected with the gear, and the other end of the rotating shaft is fixedly connected with the handle through the fixed sleeve.

[0014] The utility model discloses the beneficial effect is: through being provided with gear, the rack is fixedly connected with headband assembly, the connecting plate is fixedly connected with headband assembly, the rotating shaft is rotatably connected with the fixed sleeve, and the rotating shaft is fixedly connected with the gear, when needing to adjust headband assembly, rotating the handle and driving the gear synchronous rotation through the rotating shaft, and the gear drives the rack to carry out telescopic motion, and the rack drives headband assembly to carry out synchronous telescopic motion, through the meshing resistance of gear and rack, so that headband does not occur loose when telescoping.

[0015] Through being provided with sound-absorbing cotton, when using the noise reduction function, the loudspeaker transmits sound, and the process will vibrate, and the shock-absorbing cotton reduces the vibration caused by the loudspeaker, and the sound-absorbing cotton absorbs the small sound entering the shell from the outside, thereby increasing the noise reduction effect. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments, and obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without paying creative labor.

[0017] Figure 1 It is the overall structure schematic diagram according to the utility model embodiment;

[0018] Figure 2 It is the telescopic expansion structure schematic diagram according to the utility model embodiment;

[0019] Figure 3 This is a cross-sectional structural schematic diagram according to an embodiment of the present utility model;

[0020] Figure 4 This is a disassembly diagram of an embodiment of the present utility model;

[0021] Figure 5 According to the embodiments of this utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0022] In the picture:

[0023] 1. Outer shell; 11. Dust cover; 2. Sound-generating component; 21. Protective shell; 22. Sound-absorbing cotton; 23. Vibration-damping cotton; 24. Speaker; 3. Soft pad; 31. Soundproof cover; 4. Headband assembly; 41. Side straps; 42. Curved plate; 43. Mounting plate; 5. Adjustment assembly; 51. Adjustment shell; 52. Gear; 53. Rack; 54. Connecting plate; 55. Shaft; 56. Fixing sleeve; 57. Handle. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] According to an embodiment of the present invention, a Bluetooth headset noise reduction structure is provided.

[0026] like Figures 1-5 As shown, the Bluetooth headset noise reduction structure according to an embodiment of the present utility model includes a shell 1, a sound-generating component 2, a soft pad 3, a headband component 4, and an adjustment component 5. The sound-generating component 2 is disposed on one side of the shell 1, the soft pad 3 is disposed on one side of the shell 1, the headband component 4 is disposed on the top of the shell 1, and the adjustment component 5 is disposed on one side of the headband component 4.

[0027] The adjusting assembly 5 comprises an adjusting shell 51, a gear 52, a rack 53, a connecting plate 54, a rotating shaft 55, a fixing sleeve 56 and a rotating handle 57, the adjusting shell 51 is arranged at one side of the headband assembly 4, the gear 52 is arranged in the interior of the adjusting shell 51, the rack 53 is arranged at one side of the gear 52 and is connected through the engagement of the sawtooth, the connecting plate 54 is arranged at one side of the gear 52, the rotating shaft 55 is arranged above the gear 52, the fixing sleeve 56 is arranged above the adjusting shell 51, the rotating handle 57 is arranged above the fixing sleeve 56, the rack 53 is fixedly connected with the headband assembly 4, the connecting plate 54 is fixedly connected with the headband assembly 4, the rotating shaft 55 is rotatably connected with the fixing sleeve 56, and the rotating shaft 55 is fixedly connected with the gear 52, when it is required to adjust the headband assembly 4, the rotating handle 57 is rotated to drive the gear 52 to rotate synchronously through the rotating shaft 55, the gear 52 drives the rack 53 to perform the extension and contraction movement, the rack 53 drives the headband assembly 4 to perform the extension and contraction movement synchronously, and the meshing resistance of the gear 52 and the rack 53 enables the headband to not be loosened during the extension and contraction;

[0028] The sound generating assembly 2 comprises a protection shell 21, sound absorbing cotton 22, shock absorbing cotton 23 and a loudspeaker 24, the protection shell 21 is arranged at one side of the shell 1, the sound absorbing cotton 22 is arranged at the inner side of the protection shell 21, the shock absorbing cotton 23 is arranged at the inner side of the sound absorbing cotton 22, and the loudspeaker 24 is arranged at the inner side of the shock absorbing cotton 23, when the noise reduction function is used, the loudspeaker 24 transmits sound, vibration occurs in the process, the shock absorbing cotton 23 reduces the vibration caused by the loudspeaker, and meanwhile the sound absorbing cotton 22 absorbs small sound entering the shell 1 from the outside, thereby increasing the noise reduction effect.

[0029] The headband assembly 4 comprises a side band 41, an arc-shaped plate 42 and a mounting plate 43, the side band 41 is arranged at one side of the adjusting shell 51, the arc-shaped plate 42 is arranged below the side band 41, and the mounting plate 43 is arranged at one side of the protection shell 21 and at the inner side of the arc-shaped plate 42.

[0030] The soft pad 3 is arranged at one side of the shell 1, the inner side of the soft pad 3 is provided with a sound insulation cover 31, the inner side of the sound insulation cover 31 is provided with a sealing ring, one side of a dust cover 11 arranged at one side of the shell 1 is fixedly connected with the sound absorbing cotton 22;

[0031] The arc-shaped plate 42 is rotatably connected with the mounting plate 43, the mounting plate 43 is fixedly connected with the protection shell 21, the side band 41 is fixedly connected with the rack 53, the side band 41 is fixedly connected with the connecting plate 54, one end of the rotating shaft 55 is fixedly connected with the gear 52, and the other end of the rotating shaft 55 penetrates through the fixing sleeve 56 and is fixedly connected with the rotating handle 57;

[0032] In order to facilitate the understanding of the above technical scheme of the utility model, the working principle or operation mode of the utility model in the actual process is described in detail below.

[0033] In actual application, the rack 53 is fixedly connected with the headband assembly 4, the connecting plate 54 is fixedly connected with the headband assembly 4, the rotating shaft 55 is rotatably connected with the fixed sleeve 56, the rotating shaft 55 is fixedly connected with the gear 52, when it is needed to adjust the headband assembly 4, the rotating handle 57 is rotated to drive the gear 52 to rotate synchronously through the rotating shaft 55, the gear 52 drives the rack 53 to perform telescopic movement, the rack 53 drives the headband assembly 4 to perform telescopic movement synchronously, the meshing resistance of the gear 52 and the rack 53 enables the headband not to be loosened when performing telescopic movement, when the noise reduction function is used, the loudspeaker 24 transmits sound, vibration occurs in the process, the shock-absorbing cotton 23 reduces the vibration caused by the loudspeaker, and the sound-absorbing cotton 22 absorbs small sound entering the shell 1 from outside, so that the noise reduction effect is increased.

[0034] The above merely describes the preferred embodiment of the present application, and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A noise reduction structure for Bluetooth earphones, characterized in that, The device includes a housing (1), a sound-generating component (2), a soft pad (3), a headband assembly (4), and an adjustment component (5). The sound-generating component (2) is located on one side of the housing (1), the soft pad (3) is located on one side of the housing (1), the headband assembly (4) is located above the housing (1), and the adjustment component (5) is located on one side of the headband assembly (4). The adjustment component (5) includes an adjustment shell (51), a gear (52), a rack (53), a connecting plate (54), a rotating shaft (55), and a fixing sleeve (56). 6) and the handle (57), the adjusting shell (51) is located on one side of the headband assembly (4), the gear (52) is located inside the adjusting shell (51), the rack (53) is located on one side of the gear (52) and is connected by serrated meshing, the connecting plate (54) is located on one side of the gear (52), the rotating shaft (55) is located above the gear (52), the fixing sleeve (56) is located above the adjusting shell (51), and the handle (57) is located above the fixing sleeve (56).

2. The Bluetooth headset noise reduction structure according to claim 1, characterized in that, The sound-generating component (2) includes a protective shell (21), sound-absorbing cotton (22), vibration-damping cotton (23), and a speaker (24). The protective shell (21) is located on one side of the outer shell (1), the sound-absorbing cotton (22) is located inside the protective shell (21), the vibration-damping cotton (23) is located inside the sound-absorbing cotton (22), and the speaker (24) is located inside the vibration-damping cotton (23).

3. The Bluetooth headset noise reduction structure according to claim 2, characterized in that, The headband assembly (4) includes a side strap (41), an arc plate (42), and a mounting plate (43). The side strap (41) is located on one side of the adjustment shell (51), the arc plate (42) is located below the side strap (41), and the mounting plate (43) is located on one side of the protective shell (21) and inside the arc plate (42).

4. The Bluetooth headset noise reduction structure according to claim 3, characterized in that, The soft pad (3) is disposed on one side of the outer shell (1), and a soundproof cover (31) is disposed on the inner side of the soft pad (3), and a sealing ring is disposed on the inner side of the soundproof cover (31).

5. The Bluetooth headset noise reduction structure according to claim 4, characterized in that, A dust cover (11) is provided on one side of the outer shell (1), and one side of the dust cover (11) is connected to the sound-absorbing cotton (22).

6. The Bluetooth headset noise reduction structure according to claim 5, characterized in that, The arc plate (42) is rotatably connected to the mounting plate (43), the mounting plate (43) is fixedly connected to the protective shell (21), the side strip (41) is fixedly connected to the rack (53), and the side strip (41) is fixedly connected to the connecting plate (54).

7. The Bluetooth headset noise reduction structure according to claim 6, characterized in that, One end of the rotating shaft (55) is fixedly connected to the gear (52), and the other end of the rotating shaft (55) passes through the fixing sleeve (56) and is fixedly connected to the handle (57).

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