Noise reduction earmuff

Abstract

The utility model discloses a noise reduction earmuff, relates to the technical field of earphones, and solves the problems that the earmuff of a noise reduction earphone in the market is generally processed by using a PVC (Polyvinyl Chloride) sheath and filling sponge, so that the earmuff plays a certain role in reducing external noise, but the sound insulation effect is insufficient in an occasion with higher decibel. An ear groove is formed in one side of the ear base, an earphone is installed on the inner wall of the ear groove, isolation cloth is installed on the inner wall of the ear groove, a sealing cavity is formed in the ear base, a sound insulation mechanism is arranged in the sealing cavity, a rotating base is rotationally connected to the other side of the ear base, and the rotating base is in transmission connection with the sound insulation mechanism. And a plurality of clamping plates are mounted on the rotating seat. The piston plate is in sliding connection with the sealing cavity, and the threaded groove is in threaded connection with the connecting rod, so that the rotating seat can form a vacuum effect in the sealing cavity, and sound insulation and noise reduction can be facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to earphone field especially is related to a noise reduction earmuff. BACKGROUND

[0002] The earphone needs to be equipped with the earmuff, and two main functions of reducing external noise and improving wearing comfort are played.Earmuff, from its function, is mainly divided into cold-proof earmuff, noise-proof earmuff, hearing aid earmuff and the like, and for the noise-proof earphone, the earmuff is generally used to cover the ear shell outside to prevent the noise of the outside from entering the ear to achieve the noise reduction effect and strengthen the sound effect of the earphone.

[0003] The earmuff of the noise reduction earphone on the market is usually processed by using PVC outer skin and filling sponge, and such earmuff has certain effect on reducing external noise, but the sound insulation effect is insufficient in the situation of high decibel.

[0004] Therefore, the noise reduction earmuff is provided. UTILITY MODEL CONTENTS

[0005] In order to improve the earmuff of the noise reduction earphone on the market, which is usually processed by using PVC outer skin and filling sponge, and such earmuff has certain effect on reducing external noise, but the sound insulation effect is insufficient in the situation of high decibel, the utility model provides a noise reduction earmuff.

[0006] The utility model provides a noise reduction earmuff adopts the following technical scheme:

[0007] A noise reduction earmuff, including the ear seat, the ear seat one side is equipped with the ear groove, the ear groove inner wall is installed with the earphone, the ear groove inner wall is installed with the isolation cloth, the ear seat is equipped with the sealed cavity, the sealed cavity is equipped with the sound insulation mechanism, the ear seat opposite side is connected with the rotating seat, the rotating seat with the sound insulation mechanism transmission is connected, the rotating seat is installed with a plurality of clamping plates, the ear seat one side is equipped with the attached sealing mechanism, the attached sealing mechanism with the sound insulation mechanism transmission is connected.

[0008] Through the above technical scheme, the vacuum effect is formed in the sealed cavity, the intermediary of the ear seat to the sound propagation is reduced, the noise propagation is reduced, and the attached sealing mechanism is arranged, the ear seat and the ear of the people are sealed and attached, and the noise transmission is reduced.

[0009] Optionally, the sound insulation mechanism includes a piston plate, the piston plate is slidably installed on the inner wall of the sealed cavity, a connecting rod is fixedly installed on one side of the piston plate, a threaded groove is formed on one side of the rotating seat, and the threaded groove is threadedly connected with the connecting rod.

[0010] By adopting the technical scheme, the rotating rotating seat is connected with the connecting rod through the threaded groove, so that the connecting rod can be moved, the connecting rod drives the piston plate to move, the piston plate pumps the space on one side of the sealed cavity, a vacuum is formed in the sealed cavity, and sound insulation effect is formed, and the other side of the piston plate extrudes the air.

[0011] Optionally, an annular liquid cavity is formed on the ear seat, a filling groove is formed on the inner wall of the annular liquid cavity, a connecting hole is formed on the inner wall of the filling groove, and the connecting hole and the sealed cavity are in communication.

[0012] By adopting the technical scheme, the air extruded in the sealed cavity is introduced into the filling groove through the connecting hole and acts on the annular liquid cavity.

[0013] Optionally, a top plate is slidably connected to the inner wall of the filling groove, the top plate is in close contact with the inner wall of the filling groove, fixed blocks are fixedly installed on the two inner walls of the filling groove, a sliding rod is fixedly installed on the fixed blocks, the sliding rod is slidably connected with the top plate, and the sliding rod is fixedly connected with the inner wall of the filling groove.

[0014] By adopting the technical scheme, the gas in the sealed cavity extrudes the top plate, so that the liquid in the annular liquid cavity is extruded through the top plate, and the sliding rod and the top plate are slidably connected, so that the top plate can be limited.

[0015] Optionally, the attachment sealing mechanism comprises an annular rubber capsule, a guide hole is formed on one side of the inner wall of the annular liquid cavity, and the guide hole and the annular rubber capsule are in communication.

[0016] By adopting the technical scheme, the liquid in the annular liquid cavity is extruded under the action of the top plate in the filling groove, and is introduced into the annular rubber capsule through the guide hole, so that the annular rubber capsule is filled with liquid, and the annular rubber capsule is conveniently attached to the face, and the liquid in the annular rubber capsule is used for sound insulation and noise reduction.

[0017] Optionally, a liquid guide opening is installed on the other side of the ear seat, and the liquid guide opening and the annular liquid cavity are in communication.

[0018] By adopting the technical scheme, the liquid guide opening can be used to supplement the liquid in the annular liquid cavity.

[0019] Optionally, a ring-shaped sliding groove is formed on one side of the rotating seat, a positioning ring is slidably connected to the inner wall of the ring-shaped sliding groove, and the positioning ring is fixedly connected with the ear seat.

[0020] By adopting the technical scheme, the ring-shaped sliding groove and the positioning ring are slidably connected, so that the rotating state of the rotating seat can be positioned.

[0021] Optionally, a positioning groove is formed in the inner wall of one side of the annular sliding groove, and two positioning blocks are slidably connected to the inner wall of the positioning groove, and the two positioning blocks are fixedly connected with the positioning ring.

[0022] By adopting the above technical scheme, the positioning blocks are slidably connected with the positioning groove, so that the rotating seat can be positioned left and right by the positioning ring.

[0023] In summary, the utility model has the following beneficial effects:

[0024] 1. The utility model discloses a piston plate and the sliding connection of sealing cavity, and the threaded connection of threaded groove and connecting rod, so that the rotating rotating seat can form the vacuum effect in the sealing cavity, and then can conveniently sound insulation and noise reduction.

[0025] 2. The utility model discloses the setting of annular liquid cavity and annular rubber capsule, can conveniently carry out liquid sound insulation to the lateral direction of ear seat, and conveniently completely adhere ear seat and human face, reduce the invasion of noise. DRAWINGS

[0026] Figure 1 It is the whole structure schematic diagram of the utility model.

[0027] Figure 2 It is the side view structure schematic diagram of the utility model.

[0028] Figure 3 It is the rotating seat structure schematic diagram of the utility model.

[0029] Figure 4 It is the structure schematic diagram of A part in the utility model. Figure 2

[0030] Mark explanation:

[0031] 1, ear seat;2, ear groove;3, earphone;4, isolation cloth;5, sealing cavity;6, piston plate;7, rotating seat;8, threaded groove;9, connecting rod;10, clamping plate;11, annular liquid cavity;12, filling groove;13, fixed block;14, sliding rod;15, top plate;16, connecting hole;17, annular rubber capsule;18, guide hole;19, liquid guide port;20, annular sliding groove;21, positioning ring;22, positioning groove;23, positioning block. Specific implementation

[0032] The following will be combined with the drawings of the utility model embodiment in the utility model embodiment. Figures 1-4 ​In order to make the technical solutions in the embodiments of the present application clear and complete, obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0033] Please refer to Figures 1-4 A noise reduction ear cap, including ear seat 1, one side of ear seat 1 is provided with ear slot 2, earphone 3 is installed on the inner wall of ear slot 2, isolation cloth 4 is installed on the inner wall of ear slot 2, sealing cavity 5 is provided in ear seat 1, sound insulation mechanism is arranged in sealing cavity 5, vacuum effect is formed in sealing cavity 5, the intermediary of ear seat 1 is reduced when sound propagation, so as to reduce noise propagation, the other side of ear seat 1 is rotatably connected with rotating seat 7, rotating seat 7 is in transmission connection with sound insulation mechanism, a plurality of clamping plates 10 are installed on rotating seat 7, one side of ear seat 1 is provided with attached sealing mechanism, attached sealing mechanism is in transmission connection with sound insulation mechanism, through the setting of attached sealing mechanism, ear seat 1 and the ear of people are sealed and fitted, so as to reduce the transmission of noise.

[0034] Refer to Figure 1 The sound insulation mechanism includes piston plate 6, the piston plate 6 is slidably installed on the inner wall of the sealing cavity 5, the connecting rod 9 is fixedly installed on one side of the piston plate 6, the threaded groove 8 is formed on one side of the rotating seat 7, the threaded groove 8 is in threaded connection with the connecting rod 9, the rotating rotating seat 7 is in threaded connection with the connecting rod 9 through the threaded groove 8, so as to drive the connecting rod 9 to move, the connecting rod 9 drives the piston plate 6 to move, the piston plate 6 exhausts the space on one side of the sealing cavity 5, so that the vacuum is formed in the sealing cavity 5, and then the sound insulation effect is formed, and the other side of the piston plate 6 extrudes the air.

[0035] Refer to Figure 1 The annular liquid cavity 11 is formed on the ear seat 1, the filling groove 12 is formed on the inner wall of the annular liquid cavity 11, the connecting hole 16 is formed on the inner wall of the filling groove 12, the connecting hole 16 is in communication with the sealing cavity 5, the top plate 15 is slidably connected to the inner wall of the filling groove 12, the top plate 15 is in close contact with the inner wall of the filling groove 12, the fixed block 13 is fixedly installed on the inner wall of the filling groove 12, the sliding rod 14 is fixedly installed on the fixed block 13, the sliding rod 14 is in sliding connection with the top plate 15, and the sliding rod 14 is fixedly connected with the inner wall of the filling groove 12, the air extruded in the sealing cavity 5 is introduced into the filling groove 12 through the connecting hole 16 and acts on the annular liquid cavity 11, the gas in the sealing cavity 5 extrudes the top plate 15, so as to extrude the liquid in the annular liquid cavity 11 through the top plate 15, and the sliding rod 14 is in sliding connection with the top plate 15, so as to limit the top plate 15.

[0036] Refer to Figure 1 AndFigure 2 The attaching and sealing mechanism comprises an annular rubber capsule 17, a guide hole 18 is formed in the inner wall of one side of the annular liquid cavity 11, the guide hole 18 is in communication with the annular rubber capsule 17, the liquid in the annular liquid cavity 11 is extruded under the action of the top plate 15 in the filling groove 12, and is guided into the annular rubber capsule 17 through the guide hole 18, so that the annular rubber capsule 17 is filled with liquid, and then the annular rubber capsule 17 is conveniently attached to the face of a person, and sound insulation is realized through the liquid in the annular rubber capsule 17.

[0037] With reference to Figure 1 The other side of the ear seat 1 is provided with a liquid guide hole 19, the liquid guide hole 19 is in communication with the annular liquid cavity 11, and the liquid guide hole 19 is arranged to conveniently supplement the liquid in the annular liquid cavity 11.

[0038] With reference to Figure 1 And Figure 4 One side of the rotating seat 7 is provided with an annular sliding groove 20, the inner wall of the annular sliding groove 20 is slidably connected with a positioning ring 21, the positioning ring 21 is fixedly connected with the ear seat 1, one side of the inner wall of the annular sliding groove 20 is provided with a positioning groove 22, the inner wall of the positioning groove 22 is slidably connected with two positioning blocks 23, the two positioning blocks 23 are fixedly connected with the positioning ring 21, the annular sliding groove 20 is slidably connected with the positioning ring 21, so that the rotating state of the rotating seat 7 can be positioned, and the positioning blocks 23 are slidably connected with the positioning groove 22, so that the rotating seat 7 can be positioned leftward and rightward through the positioning ring 21.

[0039] The working principle of the utility model is as follows: in working, the rotating seat 7 is rotated, the rotating seat 7 is threadedly connected with the connecting rod 9 through the threaded groove 8, so as to drive the connecting rod 9 to move, the connecting rod 9 drives the piston plate 6 to move, the piston plate 6 exhausts the space on one side of the sealing cavity 5, so that a vacuum is formed in the sealing cavity 5, and then sound insulation effect is formed, meanwhile, the other side of the piston plate 6 extrudes air, the air extruded in the sealing cavity 5 is guided into the filling groove 12 through the connecting hole 16, and acts on the annular liquid cavity 11, the gas in the sealing cavity 5 extrudes the top plate 15, so as to extrude the liquid in the annular liquid cavity 11 through the top plate 15, meanwhile, the sliding rod 14 is slidably connected with the top plate 15, so as to position the top plate 15, the liquid in the annular liquid cavity 11 is extruded under the action of the top plate 15 in the filling groove 12, and is guided into the annular rubber capsule 17 through the guide hole 18, so that the annular rubber capsule 17 is filled with liquid, and then the annular rubber capsule 17 is conveniently attached to the face of a person, and sound insulation is realized through the liquid in the annular rubber capsule 17.

[0040] The above are preferred embodiments of the present application, and are not intended to limit the protection scope of the present application, so that: any equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A noise reducing ear muff comprising an ear mount (1), characterized in that The ear seat (1) is provided with an ear groove (2) on one side, an earphone (3) is installed on the inner wall of the ear groove (2), a sound insulation cloth (4) is installed on the inner wall of the ear groove (2), a sealing cavity (5) is formed in the ear seat (1), a sound insulation mechanism is arranged in the sealing cavity (5), the other side of the ear seat (1) is rotatably connected with a rotating seat (7), the rotating seat (7) is in transmission connection with the sound insulation mechanism, a plurality of clamping plates (10) are installed on the rotating seat (7), and a sealing mechanism is arranged on one side of the ear seat (1). The sealing mechanism is in transmission connection with the sound insulation mechanism.

2. A noise reducing ear muff according to claim 1, characterized in that: The sound insulation mechanism comprises a piston plate (6), the piston plate (6) is slidably installed on the inner wall of the sealing cavity (5), a connecting rod (9) is fixedly installed on one side of the piston plate (6), a threaded groove (8) is formed in one side of the rotating seat (7), and the threaded groove (8) is in threaded connection with the connecting rod (9).

3. A noise reducing ear muff according to claim 2, characterized in that: An annular liquid cavity (11) is formed in the ear seat (1), a filling groove (12) is formed in the inner wall of the annular liquid cavity (11), a connecting hole (16) is formed in the inner wall of the filling groove (12), and the connecting hole (16) is in communication with the sealing cavity (5).

4. A noise reducing ear muff according to claim 3, characterized in that: A top plate (15) is slidably connected to the inner wall of the filling groove (12), the top plate (15) is in mutual adhesion with the inner wall of the filling groove (12), fixed blocks (13) are fixedly installed on the inner walls of both sides of the filling groove (12), a sliding rod (14) is fixedly installed on the fixed block (13), the sliding rod (14) is in sliding connection with the top plate (15), and the sliding rod (14) is fixedly connected with the inner wall of the filling groove (12).

5. A noise reducing ear muff according to claim 4, characterized in that: The sealing mechanism comprises an annular rubber capsule (17), a guide hole (18) is formed in one side of the inner wall of the annular liquid cavity (11), and the guide hole (18) is in communication with the annular rubber capsule (17).

6. The noise reducing ear muff of claim 1, wherein: A liquid guide hole (19) is installed on the other side of the ear seat (1), and the liquid guide hole (19) is in communication with the annular liquid cavity (11).

7. A noise reducing ear muff according to claim 5, characterized in that: An annular sliding groove (20) is formed in one side of the rotating seat (7), a positioning ring (21) is slidably connected to the inner wall of the annular sliding groove (20), and the positioning ring (21) is fixedly connected with the ear seat (1).

8. A noise reducing ear muff according to claim 7, characterized in that: A positioning groove (22) is formed in one side of the inner wall of the annular sliding groove (20), two positioning blocks (23) are slidably connected to the inner wall of the positioning groove (22), and the two positioning blocks (23) are fixedly connected with the positioning ring (21).

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