Noise elimination device applied to low-altitude aircraft

Abstract

The utility model discloses a noise elimination device applied to a low-altitude aircraft, and the device comprises a housing, a joston core board disposed in the housing, a plurality of USB interfaces disposed at the front end of the joston core board, connection gaps disposed on the front surface of the housing and corresponding to the USB interfaces, and a loudspeaker assembly disposed on the housing. The loudspeaker assembly comprises a loudspeaker cover plate and a loudspeaker main body fixed on the rear surface of the loudspeaker cover plate, and further comprises two rotary quick disassembly and assembly structures arranged between the loudspeaker cover plate and the shell; according to the utility model, by improving and optimizing a noise elimination device applied to a low-altitude aircraft in the prior art and designing a rotary quick-dismounting structure on the loudspeaker cover plate, the problem of low convenience in mounting and dismounting of the loudspeaker in the existing device is solved, the overall assembly of the early-stage device is facilitated, the production efficiency is improved, and the production cost is reduced. And when the subsequent loudspeaker is damaged, the loudspeaker can be quickly detached for replacement and maintenance, so that the later maintenance time and cost of the device are reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to noise elimination technical field, concretely relates to a kind of noise elimination device applied to low altitude aircraft. BACKGROUND

[0002] With the wide application of low altitude aircraft (such as unmanned aerial vehicle, light helicopter etc.) in military reconnaissance, logistics distribution, agricultural plant protection, surveying and mapping exploration and other fields, the strong noise problem generated when it runs is increasingly prominent, in order to reduce the influence of low altitude aircraft noise, a noise elimination device applied to low altitude aircraft emerges as the times require, this noise elimination device usually includes jeston core board, rechargeable battery, multiple USB interfaces support audio input and output, speaker and other parts, its basic working process is: noise speech signal containing noise polluted by aircraft strong noise is collected through audio input device, the collected signal is input to jeston core board for speech enhancement (noise elimination) processing, clean speech signal after processing is output through speaker, in hardware composition aspect, the existing noise elimination device is generally equipped with jeston core board as processing unit, the core board has powerful computing capacity, can process noise speech signal in real time;Rechargeable battery is used to power the device, which ensures the portability and endurance of the device;Multiple USB interfaces are set, support audio input and output, facilitate connection and data transmission with other devices.

[0003] However, the mounting mode of speaker on the existing noise elimination device mostly adopts multiple screws to fix, in the early assembly stage of device, installer needs to use tool to tighten screw one by one, operation process is tedious, time-consuming is longer, and assembly cost and production cycle are increased, and in subsequent use process, when speaker is damaged and needs to be replaced and maintained, disassembly process is also inconvenient, installer needs to use tool to unscrew screw one by one again, not only operation is inconvenient, but also in some emergency situations, speaker cannot be quickly disassembled, which affects timely repair and normal use of equipment, therefore, the utility model provides a noise elimination device applied to low altitude aircraft. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a noise elimination device applied to low altitude aircraft, to solve the problems proposed in the above background.

[0005] In order to achieve the above object, the utility model provides following technical scheme: A kind of noise elimination device applied to low altitude aircraft, including shell, jeston core board being mounted in the inside of shell, multiple USB interfaces being arranged in the front end of jeston core board, connecting gap being opened in the front surface of shell and being corresponding with USB interface, loudspeaker assembly being mounted on shell, the loudspeaker assembly includes loudspeaker cover plate and loudspeaker main body being fixed in the rear surface of loudspeaker cover plate, the front surface of shell is opened with rectangular socket for the insertion of loudspeaker main body, and loudspeaker cover plate is attached to the front surface of shell, further including

[0006] Two rotary quick-release structures are arranged between the loudspeaker cover plate and the shell, the rotary quick-release structure includes a rotating base strip, a shaft block, a cylindrical plug and a rectangular clamping block, the rotating base strip and the cylindrical plug are respectively on the front and rear surfaces of the loudspeaker cover plate, the shaft block is rotatably mounted on the inner wall of the loudspeaker cover plate, and the two ends of the shaft block are fixed with the rotating base strip and the cylindrical plug respectively, the rear end surface of the cylindrical plug is fixed with the rectangular clamping block, the rotary quick-release structure further includes a circular insertion hole opened on the surface of the shell for the cylindrical plug to pass through, a clamping block inlet and outlet are opened between the circular insertion hole and the rectangular socket for the rectangular clamping block to pass through, the rear end of the cylindrical plug passes through to the inside of the shell, and the rectangular clamping block is clamped on the inside surface of the shell.

[0007] Preferably, the rotary quick-release structure further includes a clamping structure, which is arranged between the rotating base strip and the loudspeaker cover plate.

[0008] Preferably, the clamping structure includes an inner groove opened in the loudspeaker cover plate, a spring and a telescopic clamping bead mounted in the inner groove, a circular clamping groove corresponding to the telescopic clamping bead is opened on the rear surface of the rotating base strip, the telescopic clamping bead is movably mounted in the inner groove by the spring, and the front end of the telescopic clamping bead pops into the circular clamping groove.

[0009] Preferably, the front end of the spring is fixed with the telescopic clamping bead, and the rear end of the spring is fixed on the inner wall of the inner groove.

[0010] Preferably, the rotary quick-release structure further includes a positioning structure, which is arranged between the rotating base strip and the loudspeaker cover plate.

[0011] Preferably, the positioning structure includes a rubber pad embeddedly mounted on the front surface of the loudspeaker cover plate, a rubber protrusion arranged on the front surface of the rubber pad, and a positioning groove opened on the rear surface of the rotating base strip and corresponding to the rubber protrusion.

[0012] Preferably, the rubber pad and the rubber protrusion are of an integrated structure.

[0013] Preferably, a plurality of strip-shaped holes are opened on the top surface and the side surface of the shell.

[0014] Compared with the prior art, the utility model discloses the beneficial effect is: the utility model discloses the improvement optimization to the noise elimination device for low altitude aircraft under the prior art, designs the quick detachable structure of rotation on the loudspeaker cover plate, effectively solved the problem of low loudspeaker installation and disassembly convenience in the prior art, not only convenient the overall assembly of the device in the early stage, improve the production efficiency, and when the subsequent loudspeaker is damaged, can be quickly removed and replaced and maintained, reduce the maintenance time and cost of device later period, have good stability simultaneously, can guarantee the reliability of device in the daily use process, bring more efficient, stable support for the noise elimination of low altitude aircraft. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the structural schematic diagram of the utility model;

[0016] Figure 2 It is the utility model Figure 1 The partial close -up of A area in the utility model;

[0017] Figure 3 It is the side view cross -section view of loudspeaker assembly and shell junction of the utility model;

[0018] Figure 4 It is the utility model Figure 3 The partial close -up of B area in the utility model;

[0019] Figure 5 It is the structural schematic diagram of round jack and card block import and export of the utility model;

[0020] In the drawing: 1, shell;11, connecting notch;12, rectangular socket;2, jeston core board;21, USB interface;3, loudspeaker assembly;31, loudspeaker cover plate;32, loudspeaker main body;5, quick detachable structure of rotation;51, rotating base strip;52, positioning structure;521, rubber pad;522, rubber convex;523, positioning groove;53, cylindrical plug;54, rectangular card block;55, round jack;56, card block import and export;57, shaft block;581, inner groove;582, spring;583, telescopic card bead;584, round card slot. DETAILED DESCRIPTION

[0021] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0022] Embodiment 1

[0023] Please refer to Figures 1 to 5 , the first embodiment of the utility model provides a kind of technical scheme: a kind of noise elimination device applied to low altitude aircraft, it include

[0024] Shell 1, jeston core board 2 being mounted in shell 1, multiple USB interfaces 21 being provided in the front end of jeston core board 2, the connecting gap 11 being opened in the front surface of shell 1 and being corresponding with USB interface 21, loudspeaker assembly 3 being installed on shell 1, loudspeaker assembly 3 includes loudspeaker cover plate 31 and loudspeaker main body 32 being fixed in the rear surface of loudspeaker cover plate 31, the front surface of shell 1 is opened with the rectangular socket 12 for loudspeaker main body 32 insertion, and loudspeaker cover plate 31 is attached to the front surface of shell 1, while shell 1 is also provided with rechargeable battery for daily operation power supply, above-mentioned structure is all prior art, and specific structural principle is not too much here, and the rough work flow is that operating personnel connects USB interface 21 with external audio input device, and input noisy voice signal polluted by aircraft strong noise into jeston core board 2, after this, it is carried out voice enhancement noise elimination processing in jeston core board 2, and then output original clean voice is output through loudspeaker assembly 3 output;

[0025] The two rotating quick dismounting structures 5 arranged between the loudspeaker cover plate 31 and the shell 1 comprise a rotating base strip 51, an axle block 57, a cylindrical plug block 53 and a rectangular clamping block 54. The rotating base strip 51 and the cylindrical plug block 53 are respectively arranged on the front and back surfaces of the loudspeaker cover plate 31. The axle block 57 is rotatably arranged on the inner wall of the loudspeaker cover plate 31, and the two ends of the axle block 57 are fixed with the rotating base strip 51 and the cylindrical plug block 53 respectively, so that the rotating base strip 51 can rotate together with the cylindrical plug block 53. The back end surface of the cylindrical plug block 53 is fixed with the rectangular clamping block 54. The rotating quick dismounting structure 5 further comprises a circular insertion hole 55 arranged on the surface of the shell 1 and used for the cylindrical plug block 53 to pass through. The circular insertion hole 55 is arranged with a clamping block inlet and outlet 56 between the rectangular insertion opening 12 and used for the rectangular clamping block 54 to pass through. The back end of the cylindrical plug block 53 penetrates to the inner side of the shell 1, and the rectangular clamping block 54 is clamped on the inner side surface of the shell 1, so as to realize the stable limiting of the loudspeaker cover plate 31 and the loudspeaker main body 32, ensure the installation stability of the loudspeaker assembly 3, and ensure the stable operation of the device. If the loudspeaker assembly 3 needs to be quickly dismounted for maintenance in the future, the rotating base strip 51 only needs to be rotated by 180 degrees, so that the cylindrical plug block 53 rotates with the rectangular clamping block 54, the rectangular clamping block 54 is aligned with the clamping block inlet and outlet 56, and the limiting of the loudspeaker cover plate 31 and the loudspeaker main body 32 can be quickly released. At this time, the loudspeaker cover plate 31 is pulled forward, and the loudspeaker main body 32 can be directly pulled out from the inner side of the shell 1, so as to quickly complete the dismounting of the loudspeaker assembly 3, facilitate the dismounting maintenance of the loudspeaker assembly 3 in the future, and also facilitate the quick assembly of the loudspeaker assembly 3 and the shell 1 in the early stage of device assembly.

[0026] In the embodiment, preferably, the rotating quick dismounting structure 5 further comprises a clamping structure arranged between the rotating base strip 51 and the loudspeaker cover plate 31.

[0027] In the embodiment, preferably, the clamping structure comprises an inner groove 581 arranged in the loudspeaker cover plate 31, a spring 582 arranged in the inner groove 581 and a telescopic clamping bead 583. The back surface of the rotating base strip 51 is arranged with a circular clamping groove 584 corresponding to the telescopic clamping bead 583. The telescopic clamping bead 583 is movably arranged in the inner groove 581 through the spring 582, and the front end of the telescopic clamping bead 583 is popped into the circular clamping groove 584. The telescopic clamping bead 583 can be clamped and limited to the rotating base strip 51 in the daily use process, so as to ensure that the rotating base strip 51 and the cylindrical plug block 53 cannot rotate automatically, thereby ensuring the installation stability of the loudspeaker assembly 3 and the stable operation of the device. If the loudspeaker assembly 3 needs to be dismounted in the future, the rotating base strip 51 only needs to be pushed, so that the end of the telescopic clamping bead 583 is extruded and gradually extruded into the inner groove 581, the rotating base strip 51 can be rotated away from the telescopic clamping bead 583, and the rotation of the cylindrical plug block 53 and the rectangular clamping block 54 can be realized smoothly.

[0028] In the embodiment, preferably, the front end of the spring 582 is fixed with the telescopic clamping bead 583, and the rear end of the spring 582 is fixed on the inner wall of the inner groove 581, so as to ensure the stable installation of the spring 582 and the telescopic clamping bead 583.

[0029] In the embodiment, preferably, a plurality of strip-shaped holes are arranged on the top surface and the side surface of the shell 1.

[0030] Embodiment 2

[0031] Please refer to Figures 1 to 5 For the second embodiment of the utility model, the embodiment is based on the previous embodiment, and the difference is that the auxiliary limiting after the subsequent rotating base strip 51 is rotated by one hundred and eighty degrees can be realized through the setting of the positioning structure 52, and the disassembly and assembly of the loudspeaker assembly 3 are further facilitated.

[0032] Specifically, the rotating quick disassembly and assembly structure 5 further comprises a positioning structure 52, which is arranged between the rotating base strip 51 and the loudspeaker cover plate 31.

[0033] In the embodiment, preferably, the positioning structure 52 comprises a rubber pad 521 embeddedly arranged on the front surface of the loudspeaker cover plate 31, a rubber protrusion 522 arranged on the front surface of the rubber pad 521, and a positioning groove 523 arranged on the rear surface of the rotating base strip 51 and corresponding to the rubber protrusion 522, when the rotating base strip 51 is rotated by one hundred and eighty degrees by the operator in the later period, the positioning groove 523 will be opposite to the rubber protrusion 522, at this time, the rubber protrusion 522 will be squeezed into the positioning groove 523, so as to play a certain auxiliary limiting role on the rotating base strip 51 and the cylindrical plug block 53, prevent the rotating base strip 51 and the cylindrical plug block 53 from rotating at this time, and ensure that the rectangular clamping block 54 is always aligned with the clamping block import and export 56 in the disassembly and assembly process of the loudspeaker assembly 3, so as to effectively ensure the disassembly and assembly convenience of the loudspeaker assembly 3.

[0034] In the embodiment, preferably, the rubber pad 521 and the rubber protrusion 522 are integrated structures, and both are made of rubber material and can be elastically deformed when being squeezed.

[0035] Although the embodiments of the utility model have been shown and described (detailed in the above detailed description), it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A noise cancellation device for use under low-altitude aircraft, comprising a housing (1), a Jeston core board (2) installed inside the housing (1), a plurality of USB ports (21) disposed at the front end of the Jeston core board (2), a connection notch (11) opened on the front surface of the housing (1) and corresponding to the USB ports (21), and a speaker assembly (3) mounted on the housing (1), wherein the speaker assembly (3) comprises a speaker cover plate (31) and a speaker body (32) fixed to the rear surface of the speaker cover plate (31), wherein the front surface of the housing (1) is provided with a rectangular socket (12) for inserting the speaker body (32), and the speaker cover plate (31) is fitted to the front surface of the housing (1), characterized in that: Also includes Two rotary quick-release structures (5) are disposed between the speaker cover (31) and the housing (1). Each rotary quick-release structure (5) includes a rotating base (51), a shaft block (57), a cylindrical insert (53), and a rectangular locking block (54). The rotating base (51) and the cylindrical insert (53) are respectively located on the front and rear surfaces of the speaker cover (31). The shaft block (57) is rotatably mounted on the inner wall of the speaker cover (31), and both ends of the shaft block (57) are respectively connected to the rotating base (51) and the cylindrical insert. (53) Fixing: A rectangular locking block (54) is fixed on the rear end surface of the cylindrical insert (53). The rotary quick-release structure (5) also includes a circular insertion hole (55) opened on the surface of the housing (1) for the cylindrical insert (53) to pass through. A locking block inlet and outlet (56) is opened between the circular insertion hole (55) and the rectangular insertion port (12) for the rectangular locking block (54) to pass through. The rear end of the cylindrical insert (53) passes through to the inner side of the housing (1), and the rectangular locking block (54) is locked on the inner surface of the housing (1).

2. The noise cancellation device for low-altitude aircraft according to claim 1, characterized in that: The rotary quick-release structure (5) also includes a locking structure, which is disposed between the rotating base (51) and the speaker cover (31).

3. A noise cancellation device for use under low-altitude aircraft according to claim 2, characterized in that: The locking structure includes an inner groove (581) inside the speaker cover (31), a spring (582) installed in the inner groove (581), and a telescopic locking ball (583). The rear surface of the rotating base (51) is provided with a circular locking groove (584) corresponding to the telescopic locking ball (583). The telescopic locking ball (583) is movably installed in the inner groove (581) by the spring (582), and the front end of the telescopic locking ball (583) pops out into the circular locking groove (584).

4. A noise cancellation device for use under low-altitude aircraft according to claim 3, characterized in that: The front end of the spring (582) is fixed to the telescopic bead (583), and the rear end of the spring (582) is fixed to the inner wall of the inner groove (581).

5. A noise cancellation device for use under low-altitude aircraft according to claim 1, characterized in that: The rotary quick-release structure (5) also includes a positioning structure (52), which is disposed between the rotating base (51) and the speaker cover (31).

6. A noise cancellation device for use under low-altitude aircraft according to claim 5, characterized in that: The positioning structure (52) includes a rubber pad (521) embedded in the front surface of the speaker cover (31), a rubber protrusion (522) provided on the front surface of the rubber pad (521), and a positioning groove (523) opened on the rear surface of the rotating base (51) and corresponding to the rubber protrusion (522).

7. A noise cancellation device for use under low-altitude aircraft according to claim 6, characterized in that: The rubber pad (521) and the rubber protrusion (522) are an integral structure.

8. A noise cancellation device for use under low-altitude aircraft according to claim 1, characterized in that: The top and side surfaces of the housing (1) are provided with multiple strip-shaped holes.

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