CN215574844U

CN215574844U - Device for detecting sound transmission performance of screen material

Info

Publication number: CN215574844U
Application number: CN202121705043.1U
Authority: CN
Inventors: 罗强音
Original assignee: Beijing Grand Technology Ltd
Current assignee: Beijing Grand Technology Ltd
Priority date: 2021-07-26
Filing date: 2021-07-26
Publication date: 2022-01-18
Anticipated expiration: 2031-07-26

Abstract

The utility model discloses a device for detecting sound transmission performance of a screen material, which comprises a main body, wherein a sound receiving device is arranged at the top of the main body, a fixed seat is arranged at the bottom of the main body, a telescopic device is connected with the fixed seat, and one end, far away from the fixed seat, of the telescopic device is connected with a tripod. According to the device for detecting the sound transmission performance of the screen material, the sound collector is placed in the locking ring, the sound collector is locked and fixed through the tightening and loosening bolt assembly, meanwhile, the size of the opening of the locking ring can be adjusted through the tightening and loosening bolt assembly, so that the sound collectors of different specifications are fixed, the structure is simple, the sound collector is convenient to fix and detach, the clamping block is pressed to extrude the spring, the upper pressing rod can stretch and move in the lower connecting rod, the clamping block is embedded into different limiting holes, the height adjustment of the main body is realized, the collection of sounds with different heights is facilitated, manual movement adjustment is not needed, and the detection efficiency is improved.

Description

Device for detecting sound transmission performance of screen material

Technical Field

The utility model relates to the field of detection devices, in particular to a device for detecting sound transmission performance of a screen material.

Background

The screen refers to a white screen displaying a projection when in a discharge shadow. With the improvement of living standard of people, the cinema becomes the place where people go for leisure and entertainment, and the development speed of the cinema is fast, so that the sound effect of the cinema screen is more and more required by audiences, and as a cinema party, the sound transmission performance of the screen needs to be detected. However, in the existing equipment, the collection of sound needs the collection of the manual hand-held collector, the workload of personnel is increased, meanwhile, the height of the existing equipment is inconvenient to adjust, and different heights possibly need manual movement and transportation, so that inconvenience is brought to detection.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a device for detecting the sound transmission performance of a screen material, which has the characteristics that a sound receiver is easy to fix and the height of a detection device can be adjusted, and solves the problems in the prior art.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a detect device of screen material sound transmission performance, includes the main part, and the top of main part is equipped with the sound receiving device, and the bottom of main part is equipped with the fixing base, and the fixing base be connected with the telescoping device, and the one end that the fixing base was kept away from to the telescoping device is connected with the tripod. The sound collecting device comprises a sound collecting cover, an adjusting device, a sound collector, a support column, a stand column and a base, wherein the support column is connected to the inner wall of the sound collecting cover, the other end of the support column is connected with the adjusting device, the sound collector is placed in the adjusting device, the bottom of the sound collecting cover is fixedly connected with the stand column, and the other end of the stand column is fixedly connected with the base. The telescoping device comprises an upper pressure rod and a lower connecting rod, the upper pressure rod is sleeved in the lower connecting rod, and the upper pressure rod is movably connected with the lower connecting rod.

Preferably, the surface of the body is provided with a wave display.

Preferably, the adjusting device comprises a locking ring, a bolt assembly and a fixing block, the fixing block is fixedly connected to an opening of the locking ring, and the fixing block is connected through the bolt assembly.

Preferably, the sound receiver is placed in the locking ring, and the outer peripheral surface of the sound receiver is connected with the locking ring.

Preferably, the base is installed on the top of the main body, and the sound receiving device is fixedly connected with the main body through the base.

Preferably, the upper pressure lever comprises a cavity, a spring and a clamping block, the bottom of the lower pressure lever is provided with the cavity, one end of the spring is fixed on the inner wall of the cavity, and the other end of the spring is connected with the clamping block.

Preferably, the lower connecting rod is provided with a limiting hole, the end part of the clamping block is embedded into the limiting hole, and the limiting hole is movably connected with the clamping block.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the device for detecting the sound transmission performance of the screen material, the sound collector is placed in the locking ring, the peripheral surface of the sound collector is connected with the locking ring, the fixing block is arranged at the opening of the locking ring and connected through the bolt assembly, the sound collector is locked and fixed through tightening and loosening the bolt assembly, and meanwhile, the size of the opening of the locking ring can be adjusted through tightening and loosening the bolt assembly, so that sound collectors of different specifications are fixed, the structure is simple, and the sound collector is convenient to fix and disassemble.

2. According to the device for detecting the sound transmission performance of the screen material, the upper pressure rod is sleeved into the lower connecting rod, the upper pressure rod is movably connected with the lower connecting rod, the bottom of the lower pressure rod is provided with the cavity, one end of the spring is fixed on the inner wall of the cavity, the other end of the spring is connected with the fixture block, the lower connecting rod is provided with the limiting hole, the end part of the fixture block is embedded into the limiting hole, the limiting hole is movably connected with the fixture block, the fixture block is pressed to extrude the spring, the upper pressure rod can stretch and move in the lower connecting rod, the fixture block is embedded into different limiting holes, therefore, the height adjustment of the main body is achieved, the collection of sounds with different heights is facilitated, manual movement adjustment is not needed, and the detection efficiency is improved.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic structural view of a harvesting apparatus according to the present invention;

FIG. 3 is a schematic view of a locking ring structure of the present invention;

FIG. 4 is a cross-sectional view of the interior of the retractor of the present invention;

fig. 5 is a perspective view of the retractor of the present invention.

In the figure: 1. a main body; 11. a fixed seat; 12. a wave display; 2. a sound receiving device; 21. a sound collection cover; 22. an adjustment device; 221. locking a ring; 222. a bolt assembly; 223. a fixed block; 23. a sound receiver; 24. a pillar; 25. a column; 26. a base; 3. a tripod; 4. a telescoping device; 41. an upper pressure lever; 411. a cavity; 412. a spring; 413. a clamping block; 42. a lower connecting rod; 421. and a limiting hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, a device for detecting sound transmission performance of a screen material comprises a main body 1, a sound collecting device 2 is arranged at the top of the main body 1, sound is collected by the sound collecting device 2 for detection and analysis, a fixed seat 11 is arranged at the bottom of the main body 1, a wave display 12 is arranged on the surface of the main body 1, a wave result after detection and analysis is displayed on the wave display 12, a telescopic device 4 is connected to the fixed seat 11, the height of the main body 1 can be adjusted by extending the telescopic device 4, one end, far away from the fixed seat 11, of the telescopic device 4 is connected with a tripod 3, and the main body 1 is stabilized on the bottom surface through the tripod 3.

Referring to fig. 2-3, the sound collecting device 2 includes a sound collecting cover 21, an adjusting device 22, a sound collector 23, a pillar 24, a pillar 25 and a base 26, the sound collecting cover 21 collects sound at one location to facilitate sound collection, the pillar 24 is connected to an inner wall of the sound collecting cover 21, the other end of the pillar 24 is connected to the adjusting device 22, the adjusting device 22 is fixed by the pillar 24, the sound collector 23 is disposed in the adjusting device 22, the bottom of the sound collecting cover 21 is fixedly connected to the pillar 25, the other end of the pillar 25 is fixedly connected to the base 26, the base 26 is mounted on the top of the main body 1, and the sound collecting device 2 is fixedly mounted on the top of the main body 1 by the base 26.

The adjusting device 22 comprises a locking ring 221, a bolt assembly 222 and a fixing block 223, the fixing block 223 is fixedly connected to an opening of the locking ring 221, the fixing block 223 is connected through the bolt assembly 222, the sound receiver 23 is placed in the locking ring 221, the outer peripheral surface of the sound receiver 23 is connected with the locking ring 221, the sound receiver 23 is locked and fixed through the bolt assembly 222, meanwhile, the size of the opening of the locking ring 221 can be adjusted through the bolt assembly 222 being loosened, and therefore the sound receivers 23 of different specifications are fixed.

Referring to fig. 4-5, the retractable device 4 includes an upper pressing rod 41 and a lower connecting rod 42, the upper pressing rod 41 is sleeved inside the lower connecting rod 42, the upper pressing rod 41 is movably connected with the lower connecting rod 42, the upper pressing rod 41 includes a cavity 411, a spring 412 and a block 413, the bottom of the upper pressing rod 41 is provided with the cavity 411, one end of the spring 412 is fixed on the inner wall of the cavity 411, the other end of the spring 412 is connected with the block 413, the lower connecting rod 42 is provided with a limit hole 421, the end of the block 413 is embedded into the limit hole 421, the limit hole 421 is movably connected with the block 413, the block 413 is pressed to press the spring 412, so that the upper pressing rod 41 can perform retractable movement inside the lower connecting rod 42, when passing through the limit hole 421, the spring 412 further inserts the block 413 into the limit hole 421 by a pushing force, and inserts the block 413 into different limit holes 421, thereby realizing height adjustment of the main body 1 and facilitating collection of sounds with different heights, the manual movement and adjustment are not needed, and the detection efficiency is improved.

In summary, the following steps: the device for detecting the sound transmission performance of the screen material comprises a main body 1, wherein the top of the main body 1 is provided with a sound collecting device 2, a sound collecting cover 21 collects sound at one position, a sound receiver 23 is convenient to collect the sound, the inner wall of the sound collecting cover 21 is connected with a support column 24, an adjusting device 22 is fixed through the support column 24, the sound receiver 23 is placed in a locking ring 221, the outer peripheral surface of the sound receiver 23 is connected with the locking ring 221, the opening of the locking ring 221 is fixedly connected with a fixing block 223, the fixing block 223 is connected through a bolt component 222, the sound receiver 23 is fixed in a locking mode through loosening the bolt component 222, meanwhile, the size of the opening of the locking ring 221 can be adjusted through loosening the bolt component 222, the sound receivers 23 of different specifications can be fixed, the structure is simple, the fixing and the dismounting of the sound receiver 23 are convenient, an upright post 25 below the sound collecting cover 21 is fixedly connected with a base 26, the sound collecting device 2 is fixedly arranged at the top of the main body 1 through the base 26, after the collected sound is detected and analyzed, the result is displayed on the wave display 12, the larger the amplitude is, the larger the sound is, the higher the penetrating power is, and vice versa, the bottom of the main body 1 is provided with the fixing seat 11, the fixing seat 11 is connected with the telescopic device 4, the upper pressure rod 41 is sleeved in the lower connecting rod 42, the bottom of the upper pressure rod 41 is provided with the cavity 411, one end of the spring 412 is fixed on the inner wall of the cavity 411, the other end of the spring 412 is connected with the fixture block 413, the fixture block 413 is pressed to extrude the spring 412, so that the upper pressure rod 41 can perform telescopic movement in the lower connecting rod 42, when passing through the limiting hole 421, the spring 412 further inserts the fixture block 413 into the limiting hole 421 through thrust, and inserts into different limiting holes 421 through the fixture block 413, thereby realizing the height adjustment of the main body 1, and facilitating the collection of the sound with different heights, need not artifical removal adjustment, improved the efficiency of detection, the one end that fixing base 11 was kept away from to telescoping device 4 is connected with tripod 3, and main part 1 is stabilized on the bottom surface through tripod 3.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A device for detecting the sound transmission performance of a screen material comprises a main body (1), and is characterized in that: the sound receiving device (2) is arranged at the top of the main body (1), the fixed seat (11) is arranged at the bottom of the main body (1), the telescopic device (4) is connected to the fixed seat (11), and one end, far away from the fixed seat (11), of the telescopic device (4) is connected with the tripod (3); the sound collecting device (2) comprises a sound collecting cover (21), an adjusting device (22), a sound collector (23), a support column (24), an upright column (25) and a base (26), wherein the inner wall of the sound collecting cover (21) is connected with the support column (24), the other end of the support column (24) is connected with the adjusting device (22), the sound collector (23) is placed in the adjusting device (22), the bottom of the sound collecting cover (21) is fixedly connected with the upright column (25), and the other end of the upright column (25) is fixedly connected with the base (26); the telescopic device (4) comprises an upper pressure rod (41) and a lower connecting rod (42), the upper pressure rod (41) is sleeved inside the lower connecting rod (42), and the upper pressure rod (41) is movably connected with the lower connecting rod (42).

2. The apparatus for detecting the sound transmission performance of the screen material according to claim 1, wherein: the surface of the main body (1) is provided with a wave display (12).

3. The apparatus for detecting the sound transmission performance of the screen material according to claim 1, wherein: the adjusting device (22) comprises a locking ring (221), a bolt assembly (222) and a fixing block (223), the fixing block (223) is fixedly connected to an opening of the locking ring (221), and the fixing block (223) is connected through the bolt assembly (222).

4. The apparatus for detecting the sound transmission performance of the screen material according to claim 1, wherein: the sound absorber (23) is placed in the locking ring (221), and the outer peripheral surface of the sound absorber (23) is connected with the locking ring (221).

5. The apparatus for detecting the sound transmission performance of the screen material according to claim 1, wherein: the base (26) is installed on the top of the main body (1), and the sound receiving device (2) is fixedly connected with the main body (1) through the base (26).

6. The apparatus for detecting the sound transmission performance of the screen material according to claim 1, wherein: go up depression bar (41) including cavity (411), spring (412) and fixture block (413), go up the bottom of depression bar (41) and be equipped with cavity (411), the one end of spring (412) is fixed on the inner wall of cavity (411), the other end and the fixture block (413) of spring (412) are connected.

7. The apparatus for detecting the sound transmission performance of the screen material according to claim 1, wherein: the lower connecting rod (42) is provided with a limiting hole (421), the end part of the clamping block (413) is embedded into the limiting hole (421), and the limiting hole (421) is movably connected with the clamping block (413).