Acoustic sound insulation space capable of improving internal sound quality effect
By designing acoustic space with right angle trapezoidal shapes and installing specific materials on the inner wall, the problem of insufficient absorption of low-frequency sound is solved, significantly shortening the reverberation time, improving the sound quality effect, and maintaining the sound insulation effect.
Patent Information
- Application Number
- CN202422006814.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-19
- Publication Date
- 2025-06-06
- Estimated Expiration
- 2034-08-19
AI Technical Summary
When the existing acoustic space is sound-insulated, the absorption effect of low-frequency sound is weak, resulting in a long reverberation time of sound and distortion of sound quality.
By designing the shape of the acoustic space to be right-angle trapezoid, and installing GRG plates, GRG perforated plates and centrifugal glass wool on the inner wall, combining galvanized square tubes and rubber vibration isolation pads, the absorption effect of low and medium frequency sound is improved.
It effectively reduces the generation of low-frequency standing waves, shortens the reverberation time of low-frequency sounds, improves the sound quality effect of the acoustic space, and maintains the sound insulation effect.
Smart Images
Figure CN222949562U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of acoustic space, and in particular to an acoustic sound insulation space with the effect of improving internal sound quality. Background Art
[0002] For spaces with acoustic requirements such as piano practice rooms and recording studios, in order to avoid noise impact on the surrounding environment, sound insulation treatment is usually required inside such acoustic spaces. The current common practice is to cover the inner walls of the acoustic space with sound-absorbing materials, such as fiber materials, foam materials, granular materials, etc. Sound-absorbing materials mainly absorb medium and high frequency sounds. The most commonly used ones are fiber materials such as centrifugal glass wool, which have a weak effect on absorbing low-frequency sounds. Low frequency usually refers to sounds with a frequency of 20-200Hz, resulting in the reverberation of medium and high frequency sounds in the acoustic space as low as 0.1s, while the reverberation of low-frequency sounds is about 0.5s, and the sound is seriously distorted. That is, although the current sound insulation method can prevent noise impact on the surrounding environment, there is a problem of serious sound distortion inside the acoustic space. Utility Model Content
[0003] In order to solve the problems existing in the sound insulation of the existing acoustic space, the utility model provides an acoustic sound insulation space with the effect of improving the internal sound quality, which ensures the sound insulation effect while solving the problem of sound distortion in the acoustic space.
[0004] The technical purpose of this utility model is achieved through the following technical solutions:
[0005] An acoustic soundproof space with the effect of improving internal sound quality, the acoustic space comprises an inner bottom, an inner top, and a first inner wall, a second inner wall, a third inner wall and a fourth inner wall which are distributed in a right-angled trapezoid; the first inner wall is arranged parallel to the second inner wall, the third inner wall is arranged vertically between the first inner wall and the second inner wall, the fourth inner wall is arranged obliquely relative to the third inner wall between the first inner wall and the second inner wall, and the width of the first inner wall is smaller than that of the second inner wall; the inclined fourth inner wall forms a right-angled trapezoidal space inside the acoustic space compared with a traditional rectangular space, and the inclined fourth inner wall causes an irregular structure to appear inside the acoustic space, thereby reducing the generation of low-frequency standing waves.
[0006] GRG panels are installed on the first inner wall, the second inner wall, the third inner wall and the fourth inner wall respectively; the GRG panels installed on the second inner wall and the fourth inner wall are corrugated surface GRG panels; the GRG panels installed on the first inner wall and the third inner wall are flat GRG panels, and GRG perforated panels are also provided between the flat GRG panels in the height direction of the first inner wall and the third inner wall, and centrifugal glass wool is provided on the back of the GRG perforated panels; a GRG suspended ceiling is provided under the inner top.
[0007] GRG (Glass Fiber Reinforced Gypsum) is a glass fiber reinforced gypsum product with high plasticity and sound absorption effect; the setting of GRG perforated plate and centrifugal glass wool can improve the absorption of low and medium frequency sounds to a certain extent; the setting of corrugated surface GRG plate can diffuse the reflection of sound, making the reflection more uniform and soft.
[0008] Furthermore, the first inner wall, the second inner wall, the third inner wall and the fourth inner wall are respectively installed with galvanized square tubes, embedded parts are pre-embedded on the rear side of the GRG plate and the GRG perforated plate, and horizontally arranged connecting parts are connected between the galvanized square tubes and the embedded parts.
[0009] Furthermore, rubber vibration isolation pads are arranged between the galvanized square tube and the first inner wall, the second inner wall, the third inner wall and the fourth inner wall.
[0010] Furthermore, the surface density of the GRG board, GRG perforated board and GRG ceiling is not less than 30kg / ㎡, and the perforation rate of the GRG perforated board is not less than 30%.
[0011] Furthermore, an elastic floor is arranged above the insole.
[0012] Furthermore, a door for entering and exiting the acoustic space is provided on the first inner wall.
[0013] Furthermore, the elastic floor comprises a first plywood, a second plywood and an intermediate elastic layer arranged between the first plywood and the second plywood, and the first plywood is arranged above the second plywood.
[0014] Furthermore, a wooden keel is provided at the bottom of the second plywood, an elastic pad is laid under the wooden keel, and an insulating layer is filled between the wooden keels.
[0015] Compared with the prior art, the beneficial effects of the present invention are:
[0016] On the one hand, the acoustic space of the utility model reduces the generation of low-frequency standing waves by setting the shape of the acoustic space, thereby shortening the reverberation time of the low frequency to a certain extent; on the other hand, the absorption of low and medium frequency sounds is increased by setting the GRG perforated plate and centrifugal glass wool; the acoustic sound insulation system of the present application not only achieves the sound insulation effect but also reduces the problem of sound distortion in the acoustic space. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a schematic diagram of the acoustic sound insulation space structure of the utility model.
[0018] Figure 2 It is a schematic diagram of the GRG perforated plate arrangement of the utility model.
[0019] Figure 3It is a schematic diagram of the installation of the corrugated surface GRG plate in the utility model.
[0020] Figure 4 It is a schematic diagram of the installation of a flat GRG plate and a GRG perforated plate in the utility model.
[0021] Figure 5 It is a schematic diagram of the arrangement of the crests and troughs of the corrugated surface GRG plate in the utility model.
[0022] Figure 6 It is a structural schematic diagram of the elastic floor in the utility model.
[0023] Figure 7 It is another structural schematic diagram of the elastic floor in the utility model.
[0024] In the figure, 1. first inner wall; 2. second inner wall; 3. third inner wall; 4. fourth inner wall; 5. corrugated GRG board; 6. flat GRG board; 7. GRG perforated board; 8. door; 9. galvanized square tube; 10. expansion screw; 11. angle code; 12. embedded parts; 13. connector; 14. centrifugal glass wool; 15. rubber vibration isolation pad; 16. first plywood; 17. second plywood; 18. middle elastic layer; 19. wooden keel; 20. elastic pad; 21. insulation layer. DETAILED DESCRIPTION
[0025] The technical solution of the utility model is further described below in conjunction with specific implementation methods:
[0026] An acoustically soundproof space that has the effect of improving the internal sound quality, such as Figure 1 As shown, the acoustic space has an inner bottom, an inner top, and a first inner wall 1, a second inner wall 2, a third inner wall 3, and a fourth inner wall 4 distributed in a right-angle trapezoid; the first inner wall 1 is arranged parallel to the second inner wall 2, the third inner wall 3 is vertically arranged between the first inner wall 1 and the second inner wall 2, the fourth inner wall 4 is inclined relative to the third inner wall 3 and arranged between the first inner wall 1 and the second inner wall 2, and the width of the first inner wall 1 is smaller than the width of the second inner wall 2;
[0027] A door 8 for entering and exiting the acoustic space is arranged at the first inner wall 1; an air vent is arranged at the GRG ceiling of the inner top, an air duct is arranged above the GRG ceiling, and the air vent is connected to the air duct to realize air supply in the acoustic space.
[0028] In one embodiment, an elastic floor is provided above the inner bottom to reduce the noise generated by people walking. Figure 6As shown, it includes a first plywood 16, a second plywood 17 and an intermediate elastic layer 18 disposed between the first plywood 16 and the second plywood 17, and the first plywood is disposed above the second plywood. In this embodiment, the thickness of the first plywood and the second plywood are both 16m, and the intermediate elastic layer is made of rubber material, preferably a chloroprene rubber sheet, and the first plywood and the second plywood are bonded together by the chloroprene rubber sheet, which plays an elastic role and has an adhesive effect.
[0029] As a preference, Figure 7 As shown, a wooden keel 19 is also provided at the bottom of the second plywood 17, and an elastic pad 20 is laid under the wooden keel 19. The elastic body is made of rubber, and an insulating layer 21 is filled between the wooden keels 19. The insulating layer 21 can be filled with insulating materials such as glass wool and mineral wool. The insulating layer plays a role of heat insulation and fire prevention. During construction, a mortar leveling layer needs to be constructed at the bottom of the elastic pad.
[0030] GRG plates are installed on the first inner wall 1, the second inner wall 2, the third inner wall 3 and the fourth inner wall 4 respectively. The GRG plates installed on the second inner wall 2 and the fourth inner wall 4 are corrugated surface GRG plates 5; the GRG plates installed on the first inner wall 1 and the third inner wall 3 are flat surface GRG plates 6. A GRG perforated plate 7 is also provided between the flat surface GRG plates in the height direction of the first inner wall 1 and the third inner wall 3. Figure 2 As shown, centrifugal glass wool 14 is arranged on the back of the GRG perforated plate 7, and the centrifugal glass wool 14 is arranged close to the GRG perforated plate 7; a GRG suspended ceiling is arranged below the inner top.
[0031] In one embodiment, the height at which the GRG perforated plate is set corresponds to the height at which the sound source is emitted, such as in a piano room, where the GRG perforated plate is set corresponding to the height of the piano.
[0032] Specifically, galvanized square tubes 9 are installed on the first inner wall, the second inner wall, the third inner wall and the fourth inner wall respectively, the centrifugal glass wool 7 is arranged between the galvanized square tube 9 and the GRG perforated plate 7, and cavities are formed between the centrifugal glass wool 14 and the first inner wall and between the centrifugal glass wool 14 and the third inner wall to improve the absorption coefficient of low and medium frequency sounds.
[0033] The galvanized square tube 9 is fixed to the side of the first inner wall 1, the second inner wall 2, the third inner wall 3 and the fourth inner wall 4 by expansion screws 10 and angle codes 11. The first inner wall 1, the second inner wall 2, the third inner wall 3 and the fourth inner wall 4 are commonly seen as concrete walls, such as Figure 3 and Figure 4 As shown, an embedded part 12 is pre-embedded and installed on the back side of the GRG plate and the GRG perforated plate, and a horizontally arranged connecting part 13 is connected between the galvanized square tube 9 and the embedded part 12. The connecting part 13 is such as an angle steel, one end of the angle steel is welded to the galvanized square tube 9, and the other end of the angle steel is welded to the embedded part 12.
[0034] Preferably, rubber vibration isolation pads 15 are further provided between the galvanized square tube 9 and the first inner wall, the second inner wall, the third inner wall and the fourth inner wall.
[0035] In one embodiment, the corrugations of the corrugated surface GRG plate 5 have crests and troughs that are continuously and alternately arranged, the spacing between the crests is 100 mm, and the distance from the crest to the trough is 50 mm. Figure 5 shown.
[0036] In another embodiment, the corrugations of the corrugated surface GRG plate 5 have irregular crests and troughs that are continuously alternating, such as the spacing between the crests and the troughs does not vary within the range of 50-100 mm, and the distance from the crest to the trough varies within 50 mm, thereby avoiding the generation of adverse sound grille defects at the corrugated surface GRG plate.
[0037] Preferably, the surface density of GRG board, GRG perforated board and GRG ceiling is not less than 30kg / ㎡, and the perforation rate of the GRG perforated board is not less than 30%. When the perforation rate is 30%, the noise reduction coefficient reaches a higher value. With the increase of the perforation rate, the sound absorption coefficient of high frequency increases, and the sound absorption coefficient of low frequency gradually decreases.
[0038] This embodiment is only a further explanation of the utility model, not a limitation of the utility model. After reading this specification, those skilled in the art can make non-creative modifications to the embodiment as needed, but as long as it is within the scope of the claims of the utility model, it will be protected by the patent law.
Claims
1. An acoustic soundproof space with the effect of improving internal sound quality, characterized in that: The acoustic sound insulation space has an inner bottom, an inner top, and a first inner wall, a second inner wall, a third inner wall, and a fourth inner wall distributed in a right-angle trapezoid; the first inner wall is arranged parallel to the second inner wall, the third inner wall is arranged vertically between the first inner wall and the second inner wall, the fourth inner wall is arranged obliquely relative to the third inner wall between the first inner wall and the second inner wall, and the width of the first inner wall is smaller than the width of the second inner wall; GRG plates are installed on the first inner wall, the second inner wall, the third inner wall and the fourth inner wall respectively; the GRG plates installed on the second inner wall and the fourth inner wall are corrugated surface GRG plates; the GRG plates installed on the first inner wall and the third inner wall are flat GRG plates; a GRG perforated plate is also provided between the flat GRG plates in the height direction of the first inner wall and the third inner wall, and centrifugal glass wool is provided on the back of the GRG perforated plate; a GRG suspended ceiling is provided under the inner top.
2. The acoustic soundproof space having the effect of improving internal sound quality according to claim 1, characterized in that: The first inner wall, the second inner wall, the third inner wall and the fourth inner wall are respectively installed with galvanized square tubes, and embedded parts are pre-embedded on the rear side of the GRG plate and the GRG perforated plate, and horizontally arranged connecting parts are connected between the galvanized square tubes and the embedded parts.
3. The acoustic soundproof space having the effect of improving internal sound quality according to claim 2, characterized in that: Rubber vibration isolation pads are also arranged between the galvanized square tube and the first inner wall, the second inner wall, the third inner wall and the fourth inner wall.
4. The acoustic soundproof space having the effect of improving internal sound quality according to claim 1, characterized in that: The surface density of the GRG board, GRG perforated board and GRG ceiling is not less than 30kg / ㎡, and the perforation rate of the GRG perforated board is not less than 30%.
5. The acoustic soundproof space having the effect of improving internal sound quality according to claim 1, characterized in that: An elastic floor is arranged above the insole.
6. The acoustic soundproof space having the effect of improving internal sound quality according to claim 1, characterized in that: A door for entering and exiting the acoustic space is arranged on the first inner wall.
7. The acoustic soundproof space having the effect of improving the internal sound quality according to claim 5, characterized in that: The elastic floor comprises a first plywood, a second plywood and a middle elastic layer arranged between the first plywood and the second plywood, wherein the first plywood is arranged above the second plywood.
8. The acoustic soundproof space having the effect of improving the internal sound quality according to claim 7, characterized in that: A wooden keel is also arranged at the bottom of the second plywood, an elastic pad is laid under the wooden keel, and an insulating layer is filled between the wooden keels.