Noise reduction device for aviation voice terminal

Abstract

The utility model discloses a noise reduction device for an aviation voice terminal, and relates to the technical field of noise reduction devices, the noise reduction device comprises a main body, the upper end of the main body is provided with a wire harness, the wire harness is connected with the main body through a plug, the upper end of the main body is fixedly provided with a reel, and the outer surface of the reel is provided with a spiral groove. A cover plate is arranged on the outer side of the winding shaft, a through groove is formed in one side of the cover plate, a base is arranged below the main body, and a mounting shaft is arranged in the base. Compared with an existing common noise reduction device, the noise reduction device for the aviation voice terminal has the advantages that after the wire harness is connected with the main body, the wire harness is wound on the wire winding shaft and located in the groove, after winding is completed, the cover plate covers the wire harness, and the wire harness penetrates out of the through groove; in this way, through cooperation of the cover plate and the wire winding shaft, the situation that the wire harness is pulled to damage or influence the plugging port can be prevented, and therefore the stability of the device in the working process can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of noise reduction devices, in particular to a noise reduction device for an aviation voice terminal. Background Art

[0002] A speaker is a transducer that converts electrical signals into sound signals. The performance of the speaker has a great impact on the sound quality. The speaker is the weakest component in the audio equipment, but it is also the most important component for the sound effect. There are many types of speakers, and the prices vary greatly. Audio electrical energy vibrates the cone or diaphragm through electromagnetic, piezoelectric or electrostatic effects and resonates with the surrounding air to produce sound.

[0003] As the application number is 201921681018.7, the utility model relates to the technical field of audio devices, specifically a noise reduction device for a loudspeaker, comprising a main body frame, a loudspeaker body is fixedly installed on one side of the inner part of the main body frame, a noise reduction mechanism is fixedly installed on one side of the outer surface of the main body frame, sliding grooves are provided on both sides of the outer surface of the noise reduction mechanism, a substrate layer is provided on one side of the inner part of the noise reduction mechanism, a foam board is provided on the side of the inner part of the noise reduction mechanism close to the substrate layer, a waterproof layer is provided on the side of the inner part of the noise reduction mechanism close to the foam board, and a plurality of groups of connecting rods are fixedly installed on one side of the outer surface of the main frame corresponding to the noise reduction mechanism. The noise reduction device for a loudspeaker described in the utility model can effectively reduce the noise of the overall device, effectively improve the quality of the device, improve the practicality of the overall device, and bring better prospects for use. However, when the noise reduction device is in use, it is not convenient to reduce the probability of noise.

[0004] Therefore, in view of this, the existing structural deficiencies are studied and improved, and a noise reduction device for aviation voice terminals is proposed. Utility Model Content

[0005] The utility model aims to provide a noise reduction device for an aviation voice terminal to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a noise reduction device for an aviation voice terminal, comprising a main body, a wiring harness is arranged at the upper end of the main body, and the wiring harness is connected to the main body through a plug, a winding shaft is fixedly arranged at the upper end of the main body, and a spiral groove is provided on the outer surface of the winding shaft, a cover plate is arranged on the outer side of the winding shaft, and a through groove is provided on one side of the cover plate, and a base is arranged below the main body.

[0007] Preferably, a mounting shaft is disposed inside the base, a threaded groove is formed at the lower end of the mounting shaft, and the mounting shaft is meshed with the base through the threaded groove.

[0008] Preferably, a mounting ring is provided below the mounting shaft, and the mounting ring is engaged through a threaded groove, and a mounting groove is provided on a side of the mounting ring opposite to the mounting shaft.

[0009] Preferably, a shielding layer is slidably disposed inside the mounting groove, and a damper is fixedly disposed inside the base.

[0010] Preferably, springs are arranged around the damper, and the lower ends of the springs are fixedly connected to the base.

[0011] Preferably, the upper ends of the spring and the damper are both slidably connected to the main body, and a washer is fixedly provided on the inner surface of the base.

[0012] Preferably, the gasket is located above one side of the damper.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The utility model is provided with a main body, a wire harness, a winding shaft, a cover plate and a through groove. After the wire harness is connected to the main body, it is wound on the winding shaft and placed in the groove. After the winding is completed, the cover plate is closed and the wire harness is passed through the through groove. In this way, the cooperation between the cover plate and the winding shaft can prevent the wire harness from being damaged or affected by the tension on the plug interface, thereby improving the stability of the device during operation.

[0015] 2. The utility model is provided with a base, a mounting shaft, a threaded groove, a mounting groove, a mounting ring and a shielding layer. When installing the device, the shielding layer is first inserted into the mounting groove of the mounting shaft in sequence, and then the mounting ring is screwed into the threaded groove so that the lower end of the shielding layer enters the mounting groove of the mounting ring, so that the shielding layer can be fixed, and finally the mounting shaft is screwed into the inner side of the base to complete the installation. In this way, when the device is working, the probability of the electromagnetic field affecting the device is reduced, and noise can be avoided;

[0016] 3. The utility model is provided with a main body, a base, a damper, a spring and a washer. After the mounting shaft is screwed in, the main body can be pressed against the upper end of the damper and the spring, thereby improving the working effect of the damper and the spring, and can reduce the impact force on the device, thereby protecting the electronic components inside the device and reducing the probability of their loosening. In addition, the washer on one side can prevent the main body from hitting the base. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the cross-sectional structure of the installation shaft of the utility model;

[0019] Figure 3This is a schematic diagram of the cross-sectional structure of the base of the utility model;

[0020] Figure 4 For this utility model Figure 3 Enlarged structural diagram at A in the middle.

[0021] In the figure: 1, main body; 2, wire harness; 3, winding shaft; 4, cover plate; 5, through groove; 6, base; 7, mounting shaft; 8, threaded groove; 9, mounting groove; 10, mounting ring; 11, shielding layer; 12, damper;

[0022] 13. Spring; 14. Washer. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] like Figure 1-Figure 2 As shown, a noise reduction device for an aviation voice terminal includes a main body 1, a wire harness 2 is arranged at the upper end of the main body 1, and the wire harness 2 is connected to the main body 1 through a plug, a winding shaft 3 is fixedly arranged at the upper end of the main body 1, and a spiral groove is provided on the outer surface of the winding shaft 3, a cover plate 4 is arranged on the outer side of the winding shaft 3, and a through groove 5 is provided on one side of the cover plate 4, and a base 6 is arranged below the main body 1. After the wire harness 2 is connected to the main body 1, it is wound on the winding shaft 3 and placed in the groove. After the winding is completed, the cover plate 4 is covered, and the wire harness 2 is passed through the through groove 5, so that the cooperation between the cover plate 4 and the winding shaft 3 can prevent the wire harness 2 from being damaged or affected by the tension on the plug interface, thereby improving the stability of the device when working;

[0025] Furthermore, the cover plate 4 is mainly used to limit the range of movement of the wire harness 2 to prevent the wire harness 2 from spreading out, and the cover plate 4 is clamped on the outside of the winding shaft 3 by utilizing the insulating layer outside the wire harness 2 .

[0026] like Figure 2-Figure 4As shown, a mounting shaft 7 is provided inside the base 6, a threaded groove 8 is provided at the lower end of the mounting shaft 7, and the mounting shaft 7 is meshed with the base 6 through the threaded groove 8, a mounting ring 10 is provided below the mounting shaft 7, and the mounting ring 10 is meshed with the threaded groove 8, a mounting groove 9 is provided on the side opposite to the mounting shaft 7, a shielding layer 11 is slidably provided inside the mounting groove 9, a damper 12 is fixedly provided inside the base 6, a spring 13 is provided around the damper 12, the lower end of the spring 13 is fixedly connected to the base 6, the upper ends of the spring 13 and the damper 12 are both slidably connected to the main body 1, a washer 14 is fixedly provided on the inner surface of the base 6, and the washer 14 is located above one side of the damper 12. When the device is installed, First, insert the shielding layer 11 into the mounting groove 9 of the mounting shaft 7 in sequence, and then screw the mounting ring 10 into the threaded groove 8 so that the lower end of the shielding layer 11 enters the mounting groove 9 of the mounting ring 10, so that the shielding layer 11 can be fixed, and finally screw the mounting shaft 7 into the inner side of the base 6 to complete the installation, so that when the device is working, the probability of the electromagnetic field affecting the device can be reduced to avoid noise; after the mounting shaft 7 is screwed in, the main body 1 can be pressed against the upper end of the damper 12 and the spring 13, which improves the working effect of the damper 12 and the spring 13, and can facilitate reducing the impact force on the device, thereby protecting the electronic components inside the device and reducing the probability of their loosening, and the gasket 14 on one side can prevent the main body 1 from hitting the base 6.

[0027] Furthermore, the shielding layer 11 may be made of copper, aluminum, etc., and the number of layers and combination of the shielding layer 11 may be increased or decreased according to usage requirements.

[0028] Working principle: When using the noise reduction device for aviation voice terminal, first, after the wire harness 2 is connected to the main body 1, it is wound on the winding shaft 3 and placed in the groove. After winding, the cover plate 4 is covered and the wire harness 2 is passed through the through groove 5. In this way, the cooperation between the cover plate 4 and the winding shaft 3 can prevent the wire harness 2 from being damaged or affected by the tension on the plug interface, thereby improving the stability of the device during operation. Secondly, when installing the device, first insert the shielding layer 11 into the mounting groove 9 of the mounting shaft 7 in sequence, and then screw the mounting ring 10 into the threaded groove 8 to make the shielding layer 11 The lower end of the mounting ring 10 is inserted into the mounting groove 9 of the mounting ring 10, so that the shielding layer 11 can be fixed, and finally the mounting shaft 7 is screwed into the inner side of the base 6 to complete the installation, so that when the device is working, the probability of the electromagnetic field affecting the device can be reduced to avoid noise; finally, after the mounting shaft 7 is screwed in, the main body 1 can be pressed against the upper end of the damper 12 and the spring 13, so that the working effect of the damper 12 and the spring 13 is improved, which can facilitate the reduction of the impact force on the device, thereby protecting the electronic components inside the device and reducing the probability of their loosening, and the gasket 14 on one side can prevent the main body 1 from hitting the base 6. This is the working principle of the noise reduction device for aviation voice terminals.

Claims

1. A noise reduction device for an aviation voice terminal, comprising a main body (1), characterized in that: A wire harness (2) is arranged at the upper end of the main body (1), and the wire harness (2) is connected to the main body (1) through a plug; a winding shaft (3) is fixedly arranged at the upper end of the main body (1), and a spiral groove is provided on the outer surface of the winding shaft (3); a cover plate (4) is arranged on the outer side of the winding shaft (3), and a through groove (5) is provided on one side of the cover plate (4); and a base (6) is arranged below the main body (1).

2. The noise reduction device for an aviation voice terminal according to claim 1, characterized in that: A mounting shaft (7) is arranged inside the base (6), a thread groove (8) is provided at the lower end of the mounting shaft (7), and the mounting shaft (7) is meshed with the base (6) through the thread groove (8).

3. The noise reduction device for an aviation voice terminal according to claim 2, characterized in that: A mounting ring (10) is provided below the mounting shaft (7), and the mounting ring (10) is meshed with the threaded groove (8). A mounting groove (9) is provided on a side of the mounting ring (10) opposite to the mounting shaft (7).

4. The noise reduction device for an aviation voice terminal according to claim 3, characterized in that: A shielding layer (11) is slidably arranged inside the installation groove (9), and a damper (12) is fixedly arranged inside the base (6).

5. The noise reduction device for aviation voice terminal according to claim 4, characterized in that: Springs (13) are arranged around the damper (12), and the lower end of the spring (13) is fixedly connected to the base (6).

6. The noise reduction device for an aviation voice terminal according to claim 5, characterized in that: The upper ends of the spring (13) and the damper (12) are both slidably connected to the main body (1), and a washer (14) is fixedly provided on the inner surface of the base (6).

7. The noise reduction device for an aviation voice terminal according to claim 6, characterized in that: The washer (14) is located above one side of the damper (12).

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