CN214756806U

CN214756806U - Microphone sealing structure

Info

Publication number: CN214756806U
Application number: CN202120784134.2U
Authority: CN
Inventors: 张建德; 杨炯; 杨志法; 周睿京
Original assignee: Intelligent Automation Equipment Zhuhai Co Ltd
Current assignee: Intelligent Automation Equipment Zhuhai Co Ltd; Intelligent Automation Zhuhai Co Ltd
Priority date: 2021-04-16
Filing date: 2021-04-16
Publication date: 2021-11-16
Anticipated expiration: 2031-04-16

Abstract

The utility model aims at providing a convenient to use, firm reliable and sealed effectual microphone seal structure. The utility model discloses a support plate, sealing washer, sleeve briquetting and cam subassembly, be equipped with the microphone connecting hole and the connection cavity that are linked together on the support plate, the microphone connecting hole is equipped with spacing ladder groove, the sealing washer with the sleeve briquetting sets gradually from inside to outside in the spacing ladder groove, the sleeve briquetting is close to the inner edge of the one end of sealing washer is the chamfer form, the cam subassembly is fixed on the support plate and with the other end cooperation of sleeve briquetting. The utility model discloses be applied to connection structure's technical field.

Description

Microphone sealing structure

Technical Field

The utility model discloses be applied to connection structure's technical field, in particular to microphone seal structure.

Background

The application of the microphone in the acoustic testing equipment is very wide, and meanwhile, the microphone has high sealing performance and positioning accuracy in the process of product testing, and meanwhile, the microphone has high structural firmness. The traditional fixing mode is that a workpiece is fixed by screwing a screw, so that the microphone is fixed in an auxiliary mode. In the debugging and test process of test equipment, often need dismouting microphone, the mode that uses the screw fixation wastes time and energy, still needs extra with the help of other instruments, and is very inconvenient and still can influence the progress of test debugging.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that overcome prior art not enough, provide a convenient to use, firm reliable and sealed effectual microphone seal structure.

The utility model adopts the technical proposal that: the utility model discloses a support plate, sealing washer, sleeve briquetting and cam subassembly, be equipped with the microphone connecting hole and the connection cavity that are linked together on the support plate, the microphone connecting hole is equipped with spacing ladder groove, the sealing washer with the sleeve briquetting sets gradually from inside to outside in the spacing ladder groove, the sleeve briquetting is close to the inner edge of the one end of sealing washer is the chamfer form, the cam subassembly is fixed on the support plate and with the other end cooperation of sleeve briquetting.

According to the scheme, after the microphone is installed in the microphone connecting hole, the microphone connecting hole is connected with the sealed acoustic test box through the connecting cavity to collect acoustic data in the acoustic test box, the sleeve pressing block is pressed through the cam assembly, so that the chamfer part of the sleeve pressing block is matched with the stepped limiting groove to exert pressure on the sealing ring and play a guiding role, the sealing ring is tightly pressed on the microphone, effective and reliable sealing is realized, and meanwhile, the microphone is fixed. The size of clamping force applied to the microphone is changed by adjusting the cam component, so that the two states of loosening and clamping are quickly switched, and the microphone is convenient and reliable.

One preferred scheme is, the cam subassembly includes fixed block and rotating cam, the fixed block is fixed on the support plate, be equipped with the microphone spacing groove on the fixed block, rotating cam normal running fit is in the microphone spacing groove.

According to the scheme, the fixed block is arranged to meet the installation requirement of the rotating cam, the protruding part applies pressure to the sleeve pressing block when the cam structure is rotated, and the sleeve pressing block is pushed to move towards the direction close to the sealing ring to achieve extrusion. The microphone limiting groove is used for limiting a cable of the microphone, and stability is improved.

Further preferably, an end of the rotating cam remote from the convex portion is provided with a rotating arm.

According to the scheme, the rotating arm is arranged, so that the rotating cam is driven to rotate more conveniently and easily.

Further preferably, a wire passing groove is formed in the middle of the rotating cam.

According to the scheme, the wire passing groove is arranged to ensure that the rotating cam cannot interfere with the wire of the microphone.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

fig. 2 is a cross-sectional view of the present invention;

fig. 3 is an enlarged view of a portion a in fig. 2.

Detailed Description

As shown in fig. 1 to 3, in this embodiment, the utility model discloses a support plate 1, sealing washer 2, sleeve briquetting 3 and cam subassembly, be equipped with the microphone connecting hole 4 and the connection cavity 5 that are linked together on the support plate 1, microphone connecting hole 4 is equipped with spacing ladder groove, sealing washer 2 with sleeve briquetting 3 only sets gradually inside and outside in the spacing ladder groove, sleeve briquetting 3 is close to the inner edge of the one end of sealing washer 2 is the chamfer form, the cam subassembly is fixed on the support plate 1 and with the other end cooperation of sleeve briquetting 3.

In this embodiment, the cam assembly includes a fixing block 7 and a rotating cam 8, the fixing block 7 is fixed on the carrier plate 1, a microphone limiting groove 9 is formed in the fixing block 7, and the rotating cam 8 is rotatably fitted in the microphone limiting groove 9.

In this embodiment, the end of the rotating cam 8 remote from the convex portion is provided with a rotating arm 10.

In this embodiment, the center of the rotating cam 8 is provided with a wire passage groove.

Claims

1. A microphone sealing structure characterized in that: it includes support plate (1), sealing washer (2), sleeve briquetting (3) and cam pack, be equipped with microphone connecting hole (4) and connection cavity (5) that are linked together on support plate (1), microphone connecting hole (4) are equipped with spacing ladder groove, sealing washer (2) with sleeve briquetting (3) from interior and set gradually outward in the spacing ladder groove, sleeve briquetting (3) are close to the inner edge of the one end of sealing washer (2) is the chamfer form, cam pack fixes on support plate (1) and with the other end cooperation of sleeve briquetting (3).

2. A microphone sealing structure according to claim 1, characterized in that: the cam assembly comprises a fixing block (6) and a rotating cam (7), the fixing block (6) is fixed on the carrier plate (1), a microphone limiting groove (8) is formed in the fixing block (6), and the rotating cam (7) is in running fit with the microphone limiting groove (8).

3. A microphone sealing structure according to claim 2, characterized in that: and a rotating arm (9) is arranged at one end of the rotating cam (7) far away from the convex part.

4. A microphone sealing structure according to claim 2, characterized in that: and a wire passing groove is formed in the middle of the rotating cam (7).