A double-layer anti-sound suspended ceiling combined with GRG and aluminum grid

Abstract

The application relates to a GRG underhung aluminum grid combined double-layer anti-sound ceiling, which comprises a steel frame, a GRG anti-sound plate arranged below the steel frame and a grid module arranged below the GRG anti-sound plate; the GRG anti-sound plate is arranged along the full side below the steel frame and extends and is arranged from one side to the other side below the steel frame in an inclined manner, and a sound source area is arranged below the low position corresponding to the inclined extension of the GRG anti-sound plate; the grid module is arranged in an inclined manner along the inclined GRG anti-sound plate, the surface density of the GRG anti-sound plate is 120 kg / m 2 , the thickness is 7 cm, and the air permeability of the grid module is at least 50%. The application forms an anti-sound structure above the sound source through the arrangement of the GRG anti-sound plate, increases the reverberation effect of the sound in the space after the sound source is reflected by the anti-sound plate, and improves the sound quality effect; the grid module provides sound transmission purposes for the GRG anti-sound and can also avoid the uneven appearance of the anti-sound effect and sound defects.

Description

Technical Field

[0001] This invention relates to the field of acoustically insulating ceilings, specifically to a GRG-type double-layer acoustically insulating ceiling with an undermount aluminum grille. Background Technology

[0002] GRG (Glass-fiber Reinforced Gypsum), also known as precast glass fiber reinforced gypsum board, has strong shaping capabilities and acoustic effects. It has a large number of microporous structures and mainly absorbs low-frequency sounds in the 125-250Hz range. It is currently widely used.

[0003] For performance venues with acoustic requirements, such as opera houses, theaters, and concert halls, acoustic reflections with appropriate delays are needed through reflective structures to achieve good reverberation time. Existing technology, such as the ceiling design structure disclosed in CN116905716A, which optimizes the acoustic environment of a large concert hall, involves covering the bottom surface of the ceiling panel and the side and two walls facing the concert hall stage with lightweight non-combustible panels. Reflectors, made of GRG (Glass Reinforced Plastic), are installed on the surface of these panels. Summary of the Invention

[0004] To ensure that the reverberation in performance venues with acoustic requirements meets the requirements, this invention provides a GRG-mounted aluminum grille combined with a double-layer acoustically reflective ceiling, which can meet the acoustically reflective requirements while providing different acoustic variations.

[0005] The technical objective of this invention is achieved through the following technical solution:

[0006] A double-layer acoustically reflective ceiling system with GRG (Glass Reinforced Plastic) undermount aluminum grille includes a steel frame, GRG acoustic reflectors positioned beneath the steel frame, and grille modules positioned below the GRG acoustic reflectors. The GRG acoustic reflectors are fully distributed along the lower part of the steel frame, extending obliquely from one side to the other. The area below the lower edge of the obliquely extending GRG acoustic reflectors is the sound source region. The grille modules are obliquely positioned along the obliquely extending GRG acoustic reflectors. The surface density of the GRG acoustic reflectors is 120 kg / m³. 2 The thickness is 7cm, and the permeability of the grid module is at least 50%.

[0007] Furthermore, several surface light bridges are spaced apart along the inclined extension direction of the GRG reflector, and the surface light bridges are recessed upward relative to the lower surface of the GRG reflector; the grid module forms a recessed structure below each surface light bridge.

[0008] Furthermore, a sound-absorbing curtain is installed in each light bridge, the sound-absorbing curtain is pleated, and the sound-absorbing curtain is located on the high side of the light bridge near the GRG sound reflector.

[0009] Furthermore, the sound-absorbing curtain is a retractable curtain.

[0010] Furthermore, a support frame for mounting and fixing the GRG reflector is provided below the steel frame. The support frame and the steel frame are connected by a first vertical connector. The support frame has a break corresponding to the surface light bridge. The surface light bridge is embedded between the breaks of adjacent support frames. The GRG reflector is installed above the support frame.

[0011] Furthermore, several vertically arranged second vertical connectors are connected to the lower end face of the support frame. The upper end of the second vertical connector is fixedly connected to the lower end face of the support frame, and the lower end of the second vertical connector is provided with a connecting part for connecting the grid module.

[0012] Furthermore, the connecting part includes a threaded rod, a first corner bracket, and a second corner bracket. The upper end of the threaded rod is connected to the lower end of the second vertical connector, and the lower end of the threaded rod is connected to one side of the first corner bracket. The other side of the first corner bracket overlaps with one side of the second corner bracket and is connected by bolts. The other side of the second corner bracket is connected to the grid module.

[0013] Furthermore, a transverse connecting rod is provided at the lower end of the second vertical connecting member perpendicular to the second vertical connecting member, and a U-shaped member is installed on the outside of the transverse connecting rod, with the threaded rod passing through the U-shaped opening of the U-shaped member.

[0014] Furthermore, in the released state, the sound-absorbing curtain extends downward from inside the surface light bridge, with an extension length of 0.5-1.5m.

[0015] Furthermore, the sound-absorbing curtain can be retracted horizontally or vertically.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] 1. This invention utilizes the GRG reflector to create a reflective structure above the sound source. The sound reflected by the reflector increases the reverberation effect within the space, thus improving sound quality. The tilted GRG reflector causes the sound source to reflect downwards, satisfying the reflection requirements at different locations below the GRG reflector.

[0018] 2. This invention utilizes a grille module. On one hand, the grille module provides sound transmission for the GRG reflector, ensuring sound can reach the GRG reflector and providing the necessary conditions for reflection. On the other hand, because the surface of the GRG reflector is relatively flat, sound is reflected in a straight line after reaching the reflector, resulting in uneven reflection and sound defects. Furthermore, the grille module also serves a decorative purpose.

[0019] 3. By cooperating with the first and second corner brackets of the connecting part, the angle between the second corner bracket and the first corner bracket can be adjusted according to different installation angle requirements, so as to meet the requirements of fixing the corner position of the grille module.

[0020] 4. This invention achieves local sound absorption by setting a sound-absorbing curtain inside the light bridge. The sound-absorbing curtain can also be unfolded or retracted according to the acoustic requirements of the site. The sound-absorbing curtain is set inside the light bridge and is covered by the grid module to achieve a hidden sound absorption function. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the GRG-mounted aluminum grille combination double-layer acoustic ceiling in Embodiment 1 of the present invention.

[0022] Figure 2 This is a schematic diagram of the connecting part structure in this invention.

[0023] Figure 3 This is a schematic diagram of the connection between the threaded rod and the second vertical connector via angle brackets in Embodiment 1 of the present invention.

[0024] Figure 4 This is a schematic diagram of the grid module structure in Embodiment 1 of the present invention.

[0025] Figure 5 This is a schematic diagram of the connection between the second corner code and the grid module in Embodiment 1 of the present invention.

[0026] Figure 6 This is a schematic diagram of the GRG-mounted aluminum grille combination double-layer acoustic ceiling in Embodiment 2 of the present invention.

[0027] Figure 7 This is a schematic diagram of the sound-absorbing curtain setup in Embodiment 2 of the present invention.

[0028] Figure 8 This is a schematic diagram of one arrangement of the sound-absorbing curtain in this invention.

[0029] Figure 9 This is a schematic diagram of another configuration of the sound-absorbing curtain in this invention.

[0030] In the diagram, 1. Steel frame; 2. GRG sound reflector; 3. Grille module; 4. Stage; 5. First vertical connector; 6. Support frame; 7. Second vertical connector; 8. Connecting part; 9. Corner bracket; 10. Surface light bridge; 11. Sound-absorbing curtain; 12. Track; 13. Moving trolley; 14. Electric roller.

[0031] 3-1. Grille strip; 3-2. First connecting keel; 3-3. Second connecting keel;

[0032] 7-1. Lateral connecting rod; 7-2. U-shaped component;

[0033] 8-1. Threaded rod; 8-2. First angle bracket; 8-3. Second angle bracket. Detailed Implementation

[0034] The technical solution of the present invention will be further described below with reference to specific embodiments:

[0035] Example 1

[0036] A type of GRG-mounted aluminum grille combined double-layer acoustic ceiling, such as Figure 1 As shown, the system includes a steel frame 1, a GRG reflector 2 positioned below the steel frame 1, and a grille module 3 positioned below the GRG reflector 2. The GRG reflector 2 is fully distributed along the lower part of the steel frame 1, and extends obliquely from one side of the lower part of the steel frame to the other side. The area below the lower part of the oblique extension of the GRG reflector is the sound source area. In this embodiment, the GRG reflector gradually tilts upwards along the stage 4 towards the audience seating area to form a reflective surface. The grille module 3 is obliquely positioned along the obliquely extending GRG reflector, and the grille module has the same or similar tilt angle as the GRG reflector. The surface density of the GRG reflector 2 is 120 kg / m³. 2 The thickness is 7cm, and the permeability of the grid module 3 is at least 50%, that is, the area of ​​the pores of the grid module to the lower end face of each grid module is not less than 50%.

[0037] Steel frame 1 uses galvanized channel steel, galvanized square steel and other profiles. The steel frame is fixed to the top of the building through welding, pre-embedding, chemical bolts and other means, such as steel beam structure and transfer layer structure fixed to the top of the building.

[0038] The first vertical connector 5 extends downward along the steel frame 1. The first vertical connector 5 is, for example, galvanized square steel. The upper end of the first vertical connector 5 is connected to the steel frame 1, and the connection method is such as welding or hoop connection. The lower end is connected to the support frame 6, which is used to support and install the GRG reflector plate 2. The support frame 6 forms a frame structure by welding angle steel or other profiles. The GRG reflector plate 2 is fixed on the frame structure. A metal back frame is set on the top of the GRG reflector plate 2. The metal back frame is welded to the frame structure or connected together with bolts or other connectors.

[0039] Several vertically arranged second vertical connectors 7 are connected to the lower end face of the support frame 6. The upper end of the second vertical connector 7 is connected and fixed to the lower end face of the support frame 6, and the connection method is such as welding. The lower end of the second vertical connector 7 is provided with a connecting part 8 for connecting the grid module 3.

[0040] Specifically, in one embodiment, such as Figure 2As shown, a horizontal connecting rod 7-1 is provided perpendicularly to the lower end of the second vertical connecting member 7. A U-shaped member 7-2 is installed on the outside of the horizontal connecting rod 7-1. The connecting part 8 includes a threaded hanger 8-1, a first angle bracket 8-2, and a second angle bracket 8-3. The upper end of the threaded hanger 7-1 passes through the U-shaped opening of the U-shaped member 7-2 and is connected to the second vertical connecting member 7 through the U-shaped member. The lower end of the threaded hanger 8-1 is connected to one side of the first angle bracket 8-2. The other side of the first angle bracket 8-2 overlaps with one side of the second angle bracket 8-3 and is connected by bolts. The other side of the second angle bracket 8-3 is connected to the grid module.

[0041] In another embodiment, such as Figure 3 As shown,

[0042] The threaded rod 8-1 is connected and fixed to the lower end of the second vertical connector 7 via a bracket 9. Specifically, it is connected to the side of the lower end of the second vertical connector 7. The bracket 9 and the second vertical connector 7 are connected by bolts.

[0043] More specifically, such as Figure 4 As shown, the grille module 3 includes several parallel grille strips 3-1. Each grille strip 3-1 is made of bent aluminum sheet, forming a tubular structure with openings along its length. A first connecting keel 3-2 is perpendicular to the grille strips 3-1 above them, connecting the parallel grille strips 3-1 together. A second connecting keel 3-3 is perpendicular to the first connecting keel 3-2. Both the first and second connecting keels are made of galvanized square steel pipes. The exterior of the grille strips 3-1 can be covered with decorative wood veneer or painted as needed. The first connecting keel 3-2 and the grille strips 3-1 are fixedly connected by rivets, screws, etc., and the second connecting keel 3-3 and the first connecting keel 3-2 are also fixedly connected by rivets, screws, etc.

[0044] When the second angle bracket 8-3 is connected to the grille module, a U-shaped piece 7-2 is fitted onto the outside of the second connecting keel. The second angle bracket is connected to the U-shaped piece via bolts to achieve the connection with the second connecting keel. Figure 5 As shown.

[0045] Example 2

[0046] A type of GRG-mounted aluminum grille combined double-layer acoustic ceiling, such as Figure 6As shown, compared to Embodiment 1, a surface light bridge 10 is added, including a steel frame 1, a GRG sound reflector 2 disposed below the steel frame 1, and a grid module 3 disposed below the GRG sound reflector 2. The GRG sound reflector 2 is fully distributed along the lower part of the steel frame 1, and the GRG sound reflector 2 is arranged obliquely from one side of the lower part of the steel frame to the other side. The area below the lower part of the oblique extension of the GRG sound reflector is the sound source area. Several surface light bridges 10 are arranged at intervals along the oblique extension direction of the GRG sound reflector 2. The surface light bridge 10 is recessed upward relative to the lower surface of the GRG sound reflector. The support frame 6 is provided with a break corresponding to the surface light bridge 10. The surface light bridge 10 is embedded between the breaks of adjacent support frames 6 and connected to the breaks of the support frame 6 by bolts, screws, rivets, etc. The GRG sound reflector 2 is installed above the support frame 6. The grid module 3 forms a recessed structure below each surface light bridge 10. The grille module 3 is inclined along the inclined GRG reflector plate, and the grille module has the same or similar inclination angle as the GRG reflector plate. The surface density of the GRG reflector plate 2 is 120 kg / m³. 2 The permeability of the grid module 3 is at least 50%, that is, the area of ​​the pores of the grid module is not less than 50% of the area of ​​the lower end face of each grid module.

[0047] Preferably, a sound-absorbing curtain 11 is provided in each light bridge, such as Figure 7 As shown, the sound-absorbing curtain 11 has pleats and is positioned within the light bridge on the high side near the GRG sound reflector. The material of the sound-absorbing curtain is a curtain material with sound-absorbing properties, such as velvet or wool serge fabric.

[0048] Preferably, the sound-absorbing curtain is a retractable curtain, which can be retracted horizontally or vertically, and can be retracted when not in use. When the sound-absorbing curtain is extended, it extends downward from inside the surface light bridge to the surface light bridge, with an extension length of 0.5-1.5m.

[0049] In one embodiment, the sound-absorbing curtain 11 is horizontally retractable, and a track 12 is provided along the lateral extension direction of the surface light bridge for the horizontal retraction and retraction of the sound-absorbing curtain, such as... Figure 8 As shown, the sound-absorbing curtain 11 comprises left and right parts. A movable trolley 13 suspends the curtain 11 between tracks 12. The movable trolley 13 moves along the tracks 12 to move the curtain 11 to the sides to achieve its retraction. When needed, the movable trolley 13 moves towards the center to unfold the curtain 11. The movable trolley can be driven by a motor or by gears, rollers, etc., installed on the tracks. Similar designs are common in the curtain industry, such as the drive system for electric curtains in utility model patent document CN201869141U, and the motor drive system disclosed in patent document CN201563026U.

[0050] In another embodiment, such as Figure 9 As shown, the sound-absorbing curtain 11 is vertically retractable. Several motorized rollers 14 are arranged along the transverse extension direction of the surface bridge. The upper end of the sound-absorbing curtain 11 is fixed to the motorized rollers 14, and a counterweight is provided at the lower end of the curtain. The sound-absorbing curtain is either rolled up outside the motorized rollers or unfolded by rotating the motorized rollers 14. The motorized rollers can be driven by a motor shaft to roll up the curtain, or they can be motorized rollers with a self-rotating effect. When using a vertically retractable design, the pleats of the sound-absorbing curtain are preferably arranged in a horizontal direction.

[0051] This embodiment is merely a further explanation of the present invention and is not intended to limit the present invention. Those skilled in the art can make non-inventive modifications to this embodiment as needed after reading this specification, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A GRG-mounted aluminum grille combined double-layer acoustic-reflecting ceiling, characterized in that, The system includes a steel frame, GRG (Glass Reflector) acoustic panels positioned beneath the steel frame, and a grid module positioned below the GRG acoustic panels. The GRG acoustic panels are fully distributed along the lower part of the steel frame, extending obliquely from one side to the other. The area below the lower part of the obliquely extending GRG acoustic panels is the sound source region. The grid module is obliquely positioned along the obliquely extending GRG acoustic panels. The GRG acoustic panels have a surface density of 120 kg / m² and a thickness of 7 cm. The grid module has a permeability of at least 50%, and several surface light bridges are spaced apart along the oblique extension direction of the GRG acoustic panels. The surface light bridge is recessed upwards relative to the lower surface of the GRG sound reflector; the grid module forms a recessed structure below each surface light bridge, and a sound-absorbing curtain is provided in each surface light bridge. The sound-absorbing curtain is pleated and is located on the side of the surface light bridge near the high position of the GRG sound reflector. A support frame for mounting and fixing the GRG sound reflector is provided below the steel frame. The support frame and the steel frame are connected by a first vertical connector. The support frame has a break corresponding to the surface light bridge. The surface light bridge is embedded between the breaks of adjacent support frames. The GRG sound reflector is installed above the support frame.

2. The GRG under-mounted aluminum grille combined double-layer acoustic ceiling according to claim 1, characterized in that, The sound-absorbing curtain is a retractable curtain.

3. The GRG under-mounted aluminum grille combined double-layer acoustic ceiling according to claim 1, characterized in that, A plurality of vertically arranged second vertical connectors are connected to the lower end face of the support frame. The upper end of the second vertical connector is fixedly connected to the lower end face of the support frame, and the lower end of the second vertical connector is provided with a connecting part for connecting the grid module.

4. The GRG under-mounted aluminum grille combined double-layer acoustic ceiling according to claim 3, characterized in that, The connecting part includes a threaded rod, a first corner bracket, and a second corner bracket. The upper end of the threaded rod is connected to the lower end of the second vertical connector, and the lower end of the threaded rod is connected to one side of the first corner bracket. The other side of the first corner bracket overlaps with one side of the second corner bracket and is connected by bolts. The other side of the second corner bracket is connected to the grid module.

5. A GRG-mounted aluminum grille combined double-layer acoustic-reflecting ceiling according to claim 4, characterized in that, A transverse connecting rod is provided at the lower end of the second vertical connector, perpendicular to the second vertical connector. A U-shaped component is installed on the outside of the transverse connecting rod, and the threaded rod passes through the U-shaped opening of the U-shaped component.

6. The GRG under-mounted aluminum grille combined double-layer acoustic ceiling according to claim 1, characterized in that, The sound-absorbing curtain extends downwards from inside the surface light bridge when it is in the deployed state, with an extension length of 0.5-1.5m.

7. A GRG-mounted aluminum grille combined double-layer acoustic ceiling according to claim 2, characterized in that, The sound-absorbing curtain can be retracted horizontally or vertically.

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