Silencing hole of soundproof room

Abstract

The utility model relates to the technical field of soundproof rooms, in particular to a silencing hole of a soundproof room, which comprises a soundproof board mounted on the wall of the soundproof room, a plurality of silencing holes arranged in a matrix are arranged on the surface of the soundproof board, a reflecting board, a wave guide board and a sound absorption layer are sequentially arranged in each silencing hole from front to back, a plurality of protruding blocks are arranged on the front side of each reflecting board, and the protruding blocks are arranged on the front side of each reflecting board. A plurality of grooves are formed in the front side of the reflecting plate, a plurality of guide holes are formed in the front side of the wave guide plate, and the sound absorption layer comprises a plurality of sound absorption cotton plates which are arranged at equal intervals front and back. A multi-layer structure is introduced into the silencing holes of the soundproof room and comprises the reflecting plate, the wave guide plate and the sound absorption layer, noise of different frequency bands is absorbed and attenuated to the maximum extent by means of the synergistic effect of the characteristics of different materials, the sound absorption layer is formed by arranging the multiple sound absorption cotton plates at equal intervals, and the sound absorption effect is better than that of a single material through the multi-layer structure; and the overall noise attenuation capability is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of soundproof rooms, in particular to a soundproof hole of a soundproof room. Background Art

[0002] A soundproof room is a structure designed to reduce ambient noise and prevent sound leakage. It is widely used in recording studios, laboratories, audiology testing rooms, and industrial settings requiring a quiet environment. The walls, floors, and ceilings of a soundproof room are typically constructed from soundproof panels containing multiple layers of sound-absorbing material to absorb and attenuate noise as much as possible.

[0003] To improve sound insulation, existing technologies often create sound-absorbing holes in soundproof panels. These holes enhance noise absorption and attenuation through specialized structures and material configurations. However, existing designs still have some drawbacks in practical applications:

[0004] Single configuration of sound-absorbing materials: The sound-absorbing materials used in the silencer holes are mostly of a single type, which fails to give full play to the comprehensive sound-absorbing effect of multiple materials.

[0005] Insufficient low-frequency noise processing: Due to its long wavelength and strong penetrating power, low-frequency noise is difficult to be effectively absorbed by traditional designs, resulting in residual low-frequency noise.

[0006] To address the above issues, we proposed a soundproof room anechoic hole. By introducing a multi-layer structure inside the anechoic hole, including a reflective layer, a sound-absorbing layer, and a wave-guiding layer, it can maximize the absorption and attenuation of noise in different frequency bands. Utility Model Content

[0007] The purpose of the present invention is to provide a sound-absorbing hole for a soundproof room to solve the problems raised in the above-mentioned background technology.

[0008] To achieve the above objectives, the present invention provides the following technical solutions:

[0009] A soundproofing hole for a soundproof room, comprising a soundproofing board mounted on a wall of the soundproofing room, with a plurality of soundproofing holes arranged in a matrix on the surface of the soundproofing board. The soundproofing board constitutes the main part of the wall of the soundproofing room, and the plurality of soundproofing holes are provided on its surface to achieve a further sound absorption effect. A reflective plate, a waveguide plate, and a sound-absorbing layer are sequentially arranged in the soundproofing hole from front to back. The reflective plate is used to reflect and disperse the initial incoming sound waves, the waveguide plate is used to guide and regulate the sound waves passing through the reflective plate to more effectively enter the sound-absorbing layer, and the sound-absorbing layer concentrates on absorbing the residual sound wave energy passing through the first two layers, thereby further reducing noise.

[0010] The front side of the reflective plate is provided with a plurality of raised blocks for enhancing the reflection and dispersion effect of the sound waves and reducing the sound energy entering the silencer hole. The front side of the reflective plate is provided with a plurality of grooves for further assisting in the dispersion of the sound waves. The front side of the waveguide plate is provided with a plurality of guide holes for further guiding the sound waves through the channel structure to reduce its energy. The channel structure adopts a spiral or stepped channel. The sound-absorbing layer includes a plurality of sound-absorbing cotton panels arranged equidistantly in front and back, and is arranged in a front-to-back manner to provide the core sound-absorbing capacity for the sound-absorbing layer.

[0011] Preferably, the outer wall of the reflective plate is bonded to the inner wall of the muffler hole, and the reflective plate is made of high-density polyethylene material, so that the reflective plate is fixed in the muffler hole.

[0012] Preferably, a plurality of first limiting columns are provided on the rear side of the reflecting plate, and the rear ends of the first limiting columns are abutted against the front side of the waveguide plate. The function of the first limiting columns is to limit and support so that the position of the reflecting plate is fixed to ensure a stable connection between the reflecting plate and the waveguide plate.

[0013] Preferably, the outer wall of the waveguide plate is bonded to the inner wall of the muffler hole so that the waveguide plate is fixed in the muffler hole, and the waveguide plate is a porous silica gel plate.

[0014] Preferably, a plurality of second limiting columns are provided on the rear side of the waveguide plate, and the rear ends of the second limiting columns are abutted against the front side of the frontmost sound-absorbing cotton board to support and limit the position of the waveguide plate.

[0015] Preferably, the outer wall of the sound-absorbing cotton board is bonded to the inner wall of the sound-absorbing hole so that the sound-absorbing cotton board is fixed in the sound-absorbing hole, and the sound-absorbing cotton board is made of polyester sound-absorbing cotton material.

[0016] Preferably, a plurality of third limiting columns are provided between two adjacent sound-absorbing cotton boards arranged front and back, so as to maintain the spacing and stability between the sound-absorbing cotton boards and reduce the noise transmission that may be generated during the stacking process.

[0017] Preferably, the aperture of the silencer hole is 4-6 cm, and a reflective plate, a waveguide plate and a sound-absorbing layer are sequentially arranged inside, which work together to absorb and attenuate noise. An annular baffle is provided at the rear end of the inner wall of the silencer hole, and the front side of the annular baffle is against the rear side of the rearmost sound-absorbing cotton board, providing final support for the entire silencer structure, preventing the sound-absorbing layer from falling through the silencer hole, and facilitating installation.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] 1. The soundproof room’s silencer holes have a multi-layer structure, including a reflector, a waveguide and a sound-absorbing layer. The characteristics of different materials work together to maximize the absorption and attenuation of noise in different frequency bands.

[0020] 2. The silencer hole, reflector, waveguide plate and sound-absorbing cotton board of the soundproof room are limited and fixed by limiting columns respectively, ensuring the fixed and stable connection between the layers inside the silencer hole, reducing the possibility of structural looseness and noise transmission.

[0021] 3. The outer walls of the silencer hole, reflector, waveguide plate and sound-absorbing cotton board of the soundproof room are respectively bonded to the inner wall of the silencer hole, and the final support is provided by the annular baffle to prevent the sound-absorbing layer from falling, which is conducive to installation.

[0022] 4. The sound-absorbing layer of the soundproof room's silencer holes is composed of multiple equally spaced sound-absorbing cotton panels. The multi-layer structure is superior to a single material in terms of sound absorption effect, effectively improving the overall noise attenuation capability. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0024] Figure 2 This is a schematic diagram of the overall decomposition structure of the utility model;

[0025] Figure 3 Schematic diagram of the cross-sectional structure of the sound insulation board in the present utility model;

[0026] Figure 4 This is one of the partial structural diagrams of the utility model;

[0027] Figure 5 This is the second schematic diagram of the partial structure of the utility model;

[0028] In the figure: 1. Sound insulation board; 10. Silence hole; 11. Annular baffle; 2. Reflection plate; 20. Raised block; 21. Groove; 22. First limiting column; 3. Waveguide plate; 30. Guide hole; 31. Second limiting column; 4. Sound-absorbing layer; 40. Sound-absorbing cotton board; 41. Third limiting column. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0031] See also Figure 1-Figure 5 , the utility model provides a technical solution:

[0032] A soundproofing hole for a soundproof room includes a soundproofing board 1 mounted on a wall of the soundproofing room. The surface of the soundproofing board 1 is provided with a plurality of soundproofing holes 10 arranged in a matrix. The soundproofing board 1 constitutes the main part of the wall of the soundproofing room. The plurality of soundproofing holes 10 are provided on its surface to achieve a further sound absorption effect. A reflective plate 2, a waveguide plate 3, and a sound-absorbing layer 4 are sequentially arranged in the soundproofing hole 10 from front to back. The reflective plate 2 is used to reflect and disperse the initially entering sound waves. The waveguide plate 3 is used to guide and regulate the sound waves passing through the reflective plate 2 to more effectively enter the sound-absorbing layer 4. The sound-absorbing layer 4 concentrates on absorbing the residual sound wave energy passing through the first two layers, thereby further reducing noise.

[0033] A plurality of raised blocks 20 are provided on the front side of the reflecting plate 2 to enhance the reflection and dispersion effect of the sound waves and reduce the sound energy entering the silencer hole 10. A plurality of grooves 21 are provided on the front side of the reflecting plate 2 to further assist in the dispersion of the sound waves. A plurality of guide holes 30 are provided on the front side of the waveguide plate 3 to further guide the sound waves through the channel structure to reduce their energy. The channel structure adopts a spiral or stepped channel. The sound-absorbing layer 4 includes a plurality of sound-absorbing cotton panels 40 arranged equidistantly in the front and back, and is arranged in a front-to-back manner to provide the sound-absorbing layer 4 with core sound-absorbing capacity.

[0034] In this embodiment, the outer wall of the reflective plate 2 is bonded to the inner wall of the muffler hole 10 . The reflective plate 2 is made of high-density polyethylene material, so that the reflective plate 2 is fixed in the muffler hole 10 .

[0035] Specifically, a plurality of first limiting columns 22 are provided on the rear side of the reflecting plate 2, and the rear end of the first limiting columns 22 is against the front side of the waveguide plate 3. The function of the first limiting columns 22 is to limit and support so that the position of the reflecting plate 2 is fixed to ensure a stable connection between the reflecting plate 2 and the waveguide plate 3.

[0036] Furthermore, the outer wall of the waveguide plate 3 is bonded to the inner wall of the muffler hole 10 so that the waveguide plate 3 is fixed in the muffler hole 10 . The waveguide plate 3 is a porous silica gel plate.

[0037] Furthermore, a plurality of second limiting columns 31 are provided on the rear side of the waveguide plate 3 , and the rear ends of the second limiting columns 31 abut against the front side of the frontmost sound-absorbing cotton board 40 to support and limit the position of the waveguide plate 3 .

[0038] Furthermore, the outer wall of the sound-absorbing cotton board 40 is bonded to the inner wall of the sound-absorbing hole 10 so that the sound-absorbing cotton board 40 is fixed in the sound-absorbing hole 10. The sound-absorbing cotton board 40 is made of polyester sound-absorbing cotton material.

[0039] Furthermore, a plurality of third limiting columns 41 are provided between two adjacent front and rear sound-absorbing cotton boards 40 for maintaining the spacing and stability between the sound-absorbing cotton boards 40 and reducing the noise transmission that may be generated during the stacking process.

[0040] Furthermore, the aperture of the silencer hole 10 is 4-6 cm, and a reflective plate 2, a waveguide plate 3 and a sound-absorbing layer 4 are sequentially arranged inside, which work together to absorb and attenuate noise. An annular baffle 11 is provided at the rear end of the inner wall of the silencer hole 10, and the front side of the annular baffle 11 is against the rear side of the rearmost sound-absorbing cotton board 40, providing final support for the entire silencer structure, preventing the sound-absorbing layer 4 from falling through the silencer hole 10, which is conducive to installation.

[0041] When the sound insulation holes of the sound insulation room of this embodiment are in use, the sound insulation board 1 is installed on the wall of the sound insulation room, and a plurality of sound insulation holes 10 are opened on the sound insulation board, which are arranged in a matrix; a reflecting plate 2, a waveguide plate 3 and a sound absorbing layer 4 are installed in each sound insulation hole in sequence, arranged from front to back; the sound absorbing layer 4 is composed of a plurality of sound absorbing cotton boards 40, which are arranged equidistantly from front to back, and the outer wall of the sound absorbing cotton board 40 is bonded to the inner wall of the sound insulation hole 10 to absorb residual noise; the outer wall of the waveguide plate 3 is bonded to the inner wall of the sound insulation hole 10, and the waveguide plate 3 is made of a porous silica gel plate, and a guide hole 30 is provided on the front side thereof, which uses a spiral or stepped channel to guide the sound waves into the sound absorbing layer 4; the outer wall of the reflecting plate 2 is bonded to the inner wall of the sound insulation hole 10, reflecting the sound waves. The plate 2 is made of high-density polyethylene, and a protrusion 20 and a groove 21 are provided on its front side for reflecting and dispersing incoming sound waves; the first limiting column 22 fixes the position between the reflecting plate 2 and the waveguide plate 3 to ensure stability; the second limiting column 31 supports the waveguide plate 3 and is connected to the sound-absorbing cotton board 40; the third limiting column 41 stabilizes the distance between the front and rear adjacent sound-absorbing cotton boards 40 to reduce possible noise transmission; an annular baffle 11 is provided at the rear end of the inner wall of the silencer hole 10, which is against the rear side of the last sound-absorbing cotton board 40 to provide final support for the structure and prevent components from falling; through the above steps, it is ensured that the various components in the silencer hole can work together to maximize the absorption and attenuation of noise in different frequency bands and improve the sound insulation effect of the soundproof room.

[0042] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A soundproofing hole of a soundproof room, comprising a soundproofing board (1) mounted on a wall of the soundproof room, characterized in that: The surface of the sound insulation board (1) is provided with a plurality of sound-absorbing holes (10) arranged in a matrix. A reflecting plate (2), a waveguide plate (3) and a sound-absorbing layer (4) are sequentially provided in the sound-absorbing holes (10) from front to back. The front side of the reflecting plate (2) is provided with a plurality of protrusions (20). The front side of the reflecting plate (2) is provided with a plurality of grooves (21). The front side of the waveguide plate (3) is provided with a plurality of guide holes (30). The sound-absorbing layer (4) includes a plurality of sound-absorbing cotton boards (40) arranged at equal distances from front to back.

2. The sound-isolating hole of the soundproof room according to claim 1, characterized in that: The outer wall of the reflective plate (2) is bonded to the inner wall of the muffler hole (10), and the reflective plate (2) is made of high-density polyethylene material.

3. The sound-proofing hole of the soundproof room according to claim 1, characterized in that: A plurality of first limiting columns (22) are provided on the rear side of the reflector plate (2), and the rear ends of the first limiting columns (22) abut against the front side of the waveguide plate (3).

4. The sound-isolating hole of the soundproof room according to claim 1, characterized in that: The outer wall of the waveguide plate (3) is bonded to the inner wall of the muffler hole (10), and the waveguide plate (3) is a porous silica gel plate.

5. The sound-isolating hole of the soundproof room according to claim 1, characterized in that: A plurality of second limiting columns (31) are provided on the rear side of the waveguide plate (3), and the rear ends of the second limiting columns (31) abut against the front side of the frontmost sound-absorbing cotton board (40).

6. The sound-isolating hole of the soundproof room according to claim 1, characterized in that: The outer wall of the sound-absorbing cotton board (40) is bonded to the inner wall of the muffler hole (10), and the sound-absorbing cotton board (40) is made of polyester sound-absorbing cotton material.

7. The sound-isolating hole of the soundproof room according to claim 1, characterized in that: A plurality of third limiting columns (41) are provided between two adjacent sound-absorbing cotton panels (40) arranged front and back.

8. The sound-isolating hole of the soundproof room according to claim 1, characterized in that: The aperture of the muffler hole (10) is 4-6 cm. An annular baffle (11) is provided at the rear end of the inner wall of the muffler hole (10). The front side of the annular baffle (11) abuts against the rear side of the rearmost sound-absorbing cotton board (40).

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