Composite noise reduction straw silencing plate

Abstract

The utility model belongs to the technical field of silencing plates, and particularly relates to a composite noise reduction straw silencing plate which comprises a frame and a hanging ring, a silencing device is arranged on the outer surface of the frame, the silencing device comprises a straw layer, and the straw layer processes reflection and transmission of sound. The circular plate is rotationally connected with the frame, rotation of the circular plate is not affected while the circular plate is fixed, the circular plate and the sliding block are fixedly installed, the sliding block is slidably connected with the frame in an inserted mode, so that the flexible adjusting function is provided, the arc-shaped groove is formed in the outer surface of the frame, the angle of the arc-shaped groove is 90 degrees, and sliding of the sliding block is limited; the fixing block and the sliding block are fixedly installed on the frame through bolts, the circular plate and the hanging ring are fixedly installed, rotation of the circular plate drives the hanging ring to rotate, and the hanging ring is used for hanging the whole device.

Description

Technical Field

[0001] The utility model relates to the technical field of sound-absorbing panels, in particular to a composite noise-reducing straw sound-absorbing panel. Background Art

[0002] Sound-absorbing panels use acoustic principles, such as the reflection, absorption, and propagation of sound waves, to reduce noise. Their design usually includes sound-absorbing materials and special geometric structures to deal with noise in a specific frequency range. Commonly used sound-absorbing materials include polyester fiber, mineral wool, foam, etc. These materials have high sound absorption coefficients and can effectively reduce the spread of sound.

[0003] The Chinese patent with authorization announcement number CN205776848U discloses a sound-absorbing panel, which relates to the technical field of sound-absorbing panels for decoration. The sound-absorbing panel adopts a combination of grooves and holes, has a simple structure, is easy to use, and has a good sound-absorbing effect. It includes a plate body, and a plurality of sound-absorbing grooves with equal spacing and parallel to each other are axially provided on the outer surface of the plate body, and the groove center line of each sound-absorbing groove is parallel to the outer surface of the plate body, and each sound-absorbing groove connects one end of the plate body with the other end of the plate body; a plurality of sound-absorbing holes are respectively provided on the mounting surface of the plate body along the groove center line of each sound-absorbing groove, and each sound-absorbing hole is connected to the corresponding sound-absorbing groove, the hole center line of each sound-absorbing hole is perpendicular to the mounting surface of the plate body, the extension line of the hole center line of each sound-absorbing hole intersects the groove center line of the corresponding sound-absorbing groove at right angles to each other, and the lower end port of each sound-absorbing hole is on the same horizontal plane as the groove bottom surface of the corresponding sound-absorbing groove; a mounting groove is provided on the left end surface of the plate body, and a mounting protrusion corresponding to the mounting groove is provided on the right end surface of the plate body.

[0004] However, when the above scheme uses the sound-absorbing board, the holes and grooves can change the propagation direction and path of the sound waves, but the absorption capacity of the sound waves is limited. It is not effective when dealing with low-frequency or high-frequency noise, and may even cause sound wave reflection. Once the assembled sound-absorbing board is fixed, its position and angle are difficult to adjust. If it is necessary to change the sound-absorbing effect or rearrange the space, it may be very troublesome to reinstall or adjust the assembled sound-absorbing board. Therefore, a composite noise-reducing straw sound-absorbing board is proposed to solve the above-mentioned problems. Utility Model Content

[0005] Based on the existing technical problems that when using silencer panels, holes and grooves can change the propagation direction and path of sound waves, but the ability to absorb sound waves is limited, and the effect is not good when dealing with low-frequency or high-frequency noise, and once the assembled silencer panels are fixed, their position and angle are difficult to adjust, and reinstallation or adjustment is very troublesome, the utility model proposes a composite noise-reducing straw silencer panel.

[0006] The utility model provides a composite noise reduction straw silencer plate, which comprises a frame and a hanging ring. The outer surface of the frame is provided with a silencer, which comprises a straw layer, and the straw layer processes the reflection and transmission of sound.

[0007] The outer surface of the frame is provided with a suspension device, which includes a circular plate. The rotation of the circular plate adjusts the horizontal and vertical directions of the hanging ring.

[0008] Preferably, the silencer further comprises a non-woven cotton layer, which is fixedly mounted on the inner wall of the groove of the frame, and a rubber layer is fixedly mounted on the inner wall of the groove of the frame, and the outer surface of the rubber layer contacts the outer surface of the non-woven cotton layer.

[0009] Through the above technical solution, the non-woven cotton layer is fixedly installed on the inner wall of the frame, which has excellent sound absorption ability and can reduce sound propagation. The sound insulation effect can be enhanced by fixing the frame and the rubber layer to further reduce the spread of noise.

[0010] Preferably, the inner wall of the non-woven cotton layer is fixedly mounted to the outer surface of the straw layer, a foam layer is fixedly mounted on the inner wall of the straw layer, and a circular hole panel and a hexagonal hole panel are slidably inserted into the inner wall of the groove of the frame.

[0011] Through the above technical solution, the non-woven cotton layer and the straw layer are fixedly installed. The straw layer has good sound absorption and isolation characteristics. The foam layer is fixedly installed on the inner wall of the straw layer to provide additional sound absorption and isolation. The frame is slidably connected with the circular hole panel and the hexagonal hole panel to facilitate disassembly and installation. The shape of the circular hole can effectively disperse and reduce the reflection of sound waves, especially in the low-frequency range, and the design of the hexagonal hole panel usually has a better absorption effect on medium and high-frequency sounds. Its geometric shape can provide better sound diffusion and multi-directional sound wave processing. When it is necessary to process sounds of different frequencies, the panel position can be replaced as needed.

[0012] Preferably, a fixing plate is fixedly mounted on the outer surface of the frame by means of bolts, and the outer surface of the fixing plate is slidably plugged into the inner wall of the groove of the frame.

[0013] Through the above technical solution, the frame and the fixed plate are fixed with bolts, which is convenient for installation and disassembly. The fixed plate and the frame are slidably plugged in, and the grooves set on the fixed plate cooperate with the grooves of the frame to fix the circular hole panel and the hexagonal hole panel.

[0014] Preferably, the suspension device further comprises a fixed block, the fixed block is fixedly mounted on the outer surface of the circular plate, the outer surface of the circular plate is rotatably connected to the outer surface of the frame, and a slider is fixedly mounted on the outer surface of the circular plate.

[0015] Through the above technical solution, the fixed block is fixedly installed with the circular plate to fix it, the circular plate is rotatably connected to the frame to fix it without affecting its rotation, the circular plate is fixedly installed with the slider to fix it, and the slider is slidably plugged into the frame to provide flexible adjustment function.

[0016] Preferably, an arc-shaped groove is formed on the outer surface of the frame, and the inner wall of the arc-shaped groove is slidably plugged into the outer surface of the sliding block.

[0017] Through the above technical solution, an arc groove is opened on the outer surface of the frame, and the angle of the arc groove is 90 degrees. While limiting the sliding of the slider, it can only drive the hanging ring fixed on the circular plate to rotate horizontally and vertically, so as to achieve precise positioning and adjustment.

[0018] Preferably, the outer surface of the fixing block and the outer surface of the sliding block are fixedly mounted to the outer surface of the frame by bolts, and the outer surface of the circular plate is fixedly mounted to the outer surface of the hanging ring.

[0019] Through the above technical solution, the fixed block and the slider are fixed to the frame through bolts, so that the circular plate can be fixed after rotation. The circular plate is fixed to the hanging ring, and the rotation of the circular plate drives the hanging ring to rotate. The hanging ring is used to suspend the entire device, and the rotation of the hanging ring facilitates the adjustment of the hanging angle.

[0020] The beneficial effects of the present invention are:

[0021] 1. By setting up a silencer, the reflection and transmission of sound are processed. The non-woven cotton layer is fixedly installed on the inner wall of the frame, which has excellent sound absorption capacity and can reduce sound transmission. The rubber layer can enhance the sound insulation effect. The straw layer inside the non-woven cotton layer has good sound absorption and isolation characteristics. The foam layer is fixedly installed on the inner wall of the straw layer to provide additional sound absorption and isolation. The frame is slidably plugged into the circular hole panel and the hexagonal hole panel, which is convenient for disassembly and installation. When it is necessary to process sounds of different frequencies, the position of the panel can be replaced as needed. The frame and the fixing plate are fixed with bolts for easy installation and disassembly. The grooves set on the fixing plate cooperate with the grooves of the frame to fix the circular hole panel and the hexagonal hole panel, which solves the technical problem that when using the silencer, the holes and grooves can change the propagation direction and path of the sound waves, but the sound wave absorption capacity is limited, and the effect is not good when processing low-frequency or high-frequency noise, and may even cause sound wave reflection.

[0022] 2. By setting a hanging device, the horizontal and vertical directions of the hanging ring can be adjusted. The circular plate is rotatably connected to the frame, and its rotation is not affected while being fixed. The circular plate and the slider are fixedly installed, and the slider is slidably plugged into the frame to provide flexible adjustment function. An arc groove is provided on the outer surface of the frame, and the angle of the arc groove is 90 degrees. While limiting the sliding of the slider, it can only drive the hanging ring fixed on the circular plate to rotate horizontally and vertically. The fixed block and the slider are fixed to the frame by bolts, which is convenient for fixing the circular plate after rotation. The circular plate and the hanging ring are fixedly installed, and the rotation of the circular plate drives the hanging ring to rotate. The hanging ring is used to suspend the entire device, and the rotation of the hanging ring makes it easy to adjust the hanging angle, which solves the technical problem that when using the silencer, once the assembled silencer is fixed, its position and angle are difficult to adjust. If it is necessary to change the silencer effect or rearrange the space, reinstalling or adjusting the assembled silencer may be very troublesome. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of a composite noise reduction straw silencer board proposed in the utility model;

[0024] Figure 2 This is a three-dimensional diagram of the hexagonal hole panel structure of the composite noise reduction straw silencer proposed in the utility model;

[0025] Figure 3 This is a three-dimensional diagram of the foam layer structure of a composite noise reduction straw sound-absorbing board proposed in the utility model;

[0026] Figure 4 This is a three-dimensional diagram of the fixed plate structure of a composite noise reduction straw silencer proposed in the utility model;

[0027] Figure 5 This is a three-dimensional diagram of the arc groove structure of a composite noise reduction straw silencer proposed in the utility model;

[0028] Figure 6 This is a three-dimensional diagram of the hanging ring structure of the composite noise-reducing straw silencer board proposed in the utility model.

[0029] In the figure: 1. frame; 11. hanging ring; 2. non-woven cotton layer; 21. rubber layer; 3. straw layer; 31. foam layer; 32. circular hole panel; 33. hexagonal hole panel; 4. fixing plate; 5. fixing block; 51. circular plate; 52. slider; 6. arc groove. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0031] Reference Figures 1-6 A composite noise reduction straw silencer board includes a frame 1 and a hanging ring 11. The outer surface of the frame 1 is provided with a silencer, and the silencer includes a straw layer 3. The straw layer 3 processes the reflection and transmission of sound.

[0032] In order to reduce the propagation of sound, the silencer also includes a non-woven cotton layer 2, which is fixedly mounted on the inner wall of the groove of the frame 1. A rubber layer 21 is fixedly mounted on the inner wall of the groove of the frame 1. The outer surface of the rubber layer 21 contacts the outer surface of the non-woven cotton layer 2. The non-woven cotton layer 2 is fixedly mounted on the inner wall of the frame 1. It has excellent sound absorption capacity and can reduce sound propagation. The frame 1 is fixedly mounted with the rubber layer 21 to enhance the sound insulation effect so as to further reduce the propagation of noise.

[0033] In order to provide additional sound absorption and isolation, the inner wall of the non-woven cotton layer 2 is fixedly installed with the outer surface of the straw layer 3, and the inner wall of the straw layer 3 is fixedly installed with a foam layer 31. The inner wall of the groove of the frame 1 is slidably plugged with a circular hole panel 32 and a hexagonal hole panel 33. By fixing the non-woven cotton layer 2 and the straw layer 3, the straw layer 3 has good sound absorption and isolation properties. The inner wall of the straw layer 3 is fixedly installed with the foam layer 31, providing additional sound absorption and isolation. The frame 1 is slidably plugged with the circular hole panel 32 and the hexagonal hole panel 33, which is convenient for disassembly and installation. The shape of the circular hole can effectively disperse and reduce the reflection of sound waves, especially in the low frequency range, and the design of the hexagonal hole panel 33 usually has a better absorption effect on medium and high frequency sounds. Its geometric shape can provide better sound diffusion and multi-directional sound wave processing. When sounds of different frequencies need to be processed, the panel position can be replaced as needed.

[0034] In order to fix the circular hole panel 32 and the hexagonal hole panel 33, a fixing plate 4 is fixed to the outer surface of the frame 1 by bolts, and the outer surface of the fixing plate 4 is slidably inserted into the inner wall of the groove of the frame 1. The frame 1 and the fixing plate 4 are fixed by bolts, which is convenient for installation and disassembly. The fixing plate 4 is slidably inserted into the frame 1, and the groove set on the fixing plate 4 cooperates with the groove of the frame 1, thereby fixing the circular hole panel 32 and the hexagonal hole panel 33.

[0035] By setting up a silencer, the reflection and transmission of sound are processed. The non-woven cotton layer 2 is fixedly installed on the inner wall of the frame 1, which has excellent sound absorption capacity and can reduce sound propagation. The rubber layer 21 can enhance the sound insulation effect. The straw layer 3 inside the non-woven cotton layer 2 has good sound absorption and isolation characteristics. The foam layer 31 is fixedly installed on the inner wall of the straw layer 3 to provide additional sound absorption and isolation. The frame 1 is slidably plugged into the circular hole panel 32 and the hexagonal hole panel 33, which is convenient for disassembly and installation. When it is necessary to process sounds of different frequencies, the position of the panels can be replaced as needed. The frame 1 is fixed to the fixing plate 4 by bolts, which is convenient for installation and disassembly. The grooves provided on the fixing plate 4 cooperate with the grooves of the frame 1 to fix the circular hole panel 32 and the hexagonal hole panel 33, thereby solving the technical problem that when using a silencer panel, the holes and grooves can change the propagation direction and path of the sound waves, but the absorption capacity of the sound waves is limited, the effect is not good when processing low-frequency or high-frequency noise, and even sound wave reflection may occur.

[0036] In order to adjust the horizontal and vertical directions of the hanging ring 11 , a suspension device is provided on the outer surface of the frame 1 . The suspension device includes a circular plate 51 . The rotation of the circular plate 51 adjusts the horizontal and vertical directions of the hanging ring 11 .

[0037] In order to provide a flexible adjustment function, the suspension device also includes a fixed block 5, which is fixedly mounted on the outer surface of the circular plate 51. The outer surface of the circular plate 51 is rotatably connected to the outer surface of the frame 1. A slider 52 is fixedly mounted on the outer surface of the circular plate 51. The fixed block 5 is fixedly mounted on the circular plate 51 to fix it. The circular plate 51 is rotatably connected to the frame 1 to fix it without affecting its rotation. The circular plate 51 is fixedly mounted on the slider 52 to fix it. The slider 52 is slidably plugged into the frame 1 to provide a flexible adjustment function.

[0038] In order to achieve precise positioning and adjustment, an arc-shaped groove 6 is provided on the outer surface of the frame 1. The inner wall of the arc-shaped groove 6 is slidably inserted into the outer surface of the slider 52. The arc-shaped groove 6 is provided on the outer surface of the frame 1. The angle of the arc-shaped groove 6 is 90 degrees. While limiting the sliding of the slider 52, it can only drive the hanging ring 11 fixedly installed on the circular plate 51 to rotate horizontally and vertically, so as to achieve precise positioning and adjustment.

[0039] In order to drive the hanging ring 11 to rotate, the outer surface of the fixed block 5 and the outer surface of the slider 52 are fixed to the outer surface of the frame 1 by bolts, and the outer surface of the circular plate 51 is fixed to the outer surface of the hanging ring 11. The fixed block 5 and the slider 52 are fixed to the frame 1 by bolts, so that the circular plate 51 is fixed after it is rotated. The circular plate 51 is fixed to the hanging ring 11, and the rotation of the circular plate 51 drives the hanging ring 11 to rotate. The hanging ring 11 is used to suspend the entire device, and the rotation of the hanging ring 11 facilitates the adjustment of the hanging angle.

[0040] The cam 51 is fixed to the frame 1 so that the cam 51 can be adjusted in the horizontal and vertical directions.

[0041] Working principle: When it is necessary to process sounds of different frequencies, the circular hole panel 32 and the hexagonal hole panel 33 are slidably inserted on the frame 1. The shape of the circular hole can effectively disperse and reduce the reflection of sound waves, especially in the low-frequency range, while the design of the hexagonal hole panel 33 usually has a better absorption effect on medium and high-frequency sounds. Its geometric shape can provide better sound diffusion and multi-directional sound wave processing. The position can be swapped as needed. After the swap is completed, the fixing plate 4 is fixed to the frame 1 by bolts. The grooves provided on the fixing plate 4 match the grooves of the frame 1, thereby fixing the circular hole panel 32 and the hexagonal hole panel 33;

[0042] When the installation angle needs to be adjusted, the circular plate 51 is rotated, and the slider 52 fixed to the circular plate 51 slides in the arc groove 6 opened on the frame 1. The arc groove 6 has an angle of 90 degrees, which limits the sliding of the slider 52 so that it can only drive the hanging ring 11 fixed to the circular plate 51 to rotate horizontally and vertically. After the angle adjustment is completed, the slider 52 fixed to the circular plate 51 and the fixed block 5 are installed with the frame 1 by bolts;

[0043] After installation, the sound enters the non-woven cotton layer 2 inside the frame 1 through the holes opened on the panel, which performs preliminary processing on the sound propagation. The internal straw layer 3 further absorbs the sound. The foam layer 31 is fixedly installed on the inner wall of the straw layer 3 to provide additional sound absorption and isolation. The rubber layer 21 fixed to the frame 1 and in contact with the non-woven cotton layer 2 enhances the sound insulation effect and further reduces the spread of noise.

[0044] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A composite noise reduction straw muffler board, comprising a frame (1) and a hanging ring (11), characterized in that: The outer surface of the frame (1) is provided with a silencer, the silencer comprising a straw layer (3), and the straw layer (3) processes the reflection and transmission of sound; The outer surface of the frame (1) is provided with a suspension device, which comprises a circular plate (51). The rotation of the circular plate (51) adjusts the horizontal and vertical directions of the hanging ring (11).

2. The composite noise reduction straw muffler according to claim 1, characterized in that: The silencer device further comprises a non-woven cotton layer (2), the non-woven cotton layer (2) being fixedly mounted on the inner wall of the groove of the frame (1), a rubber layer (21) being fixedly mounted on the inner wall of the groove of the frame (1), and the outer surface of the rubber layer (21) being in contact with the outer surface of the non-woven cotton layer (2).

3. The composite noise reduction straw muffler according to claim 2, characterized in that: The inner wall of the non-woven cotton layer (2) is fixedly mounted on the outer surface of the straw layer (3), a foam layer (31) is fixedly mounted on the inner wall of the straw layer (3), and a circular hole panel (32) and a hexagonal hole panel (33) are slidably inserted into the inner wall of the groove of the frame (1).

4. The composite noise reduction straw muffler according to claim 1, characterized in that: A fixing plate (4) is fixedly mounted on the outer surface of the frame (1) by means of bolts, and the outer surface of the fixing plate (4) is slidably plugged into the inner wall of the groove of the frame (1).

5. The composite noise reduction straw muffler according to claim 1, characterized in that: The suspension device further comprises a fixed block (5), wherein the fixed block (5) is fixedly mounted on the outer surface of the circular plate (51), the outer surface of the circular plate (51) is rotatably connected to the outer surface of the frame (1), and a slider (52) is fixedly mounted on the outer surface of the circular plate (51).

6. The composite noise reduction straw muffler board according to claim 5, characterized in that: An arc-shaped groove (6) is provided on the outer surface of the frame (1), and the inner wall of the groove of the arc-shaped groove (6) is slidably plugged into the outer surface of the slider (52).

7. The composite noise reduction straw muffler according to claim 5, characterized in that: The outer surface of the fixed block (5) and the outer surface of the sliding block (52) are fixedly mounted to the outer surface of the frame (1) via bolts, and the outer surface of the circular plate (51) is fixedly mounted to the outer surface of the hanging ring (11).

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