GRG lower hanging aluminum grating combined type double-layer anti-sound suspended ceiling

Abstract

The invention relates to a GRG lower hanging aluminum grating combined type double-layer sound reflecting suspended ceiling. The GRG lower hanging aluminum grating combined type double-layer sound reflecting suspended ceiling comprises a steel frame, a GRG sound reflecting plate arranged below the steel frame and a grating module arranged below the GRG sound reflecting plate. The GRG sound reflecting plates are fully distributed below the steel frame, the GRG sound reflecting plates obliquely extend from one side to the other side below the steel frame, and a sound source area is arranged below the lower position where the GRG sound reflecting plates obliquely extend correspondingly; the grating module is obliquely arranged along the obliquely extending GRG sound reflecting plate, the surface density of the GRG sound reflecting plate is 120 kg / m < 2 >, the thickness of the GRG sound reflecting plate is 7 cm, and the air permeability of the grating module is at least 50%. Through the arrangement of the GRG sound reflecting plate, a sound reflecting structure is formed above the sound source, the reverberation effect of sound in a space is improved after the sound source is subjected to sound reflecting through the sound reflecting plate, and the sound quality effect is improved; on one hand, the grating module provides a sound transmission purpose for GRG sound reflection, and can avoid sound defects caused by non-uniform sound reflection effect.

Description

Technical Field

[0001] The invention relates to the field of anti-sound ceilings, and in particular to a GRG bottom-hung aluminum grille combined double-layer anti-sound ceiling. Background Art

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

[0003] For performance venues with acoustic requirements, such as opera houses, theaters, and concert halls, in order to achieve a good reverberation time, it is necessary to provide appropriately delayed acoustic reflections through anti-sound structures. Prior art, such as a ceiling design structure that can optimize the acoustic environment of a large concert hall, disclosed in publication number CN116905716A, is provided with lightweight non-combustible panels on the bottom surface of the ceiling panel and the side and both sides of the wall facing the concert hall stage, and a reflector is provided on the surface of the lightweight non-combustible panel, and the reflector is a GRG panel. Summary of the invention

[0004] In order to ensure that the reverberation in a performance venue with acoustic requirements meets the requirements, the present invention provides a GRG bottom-mounted aluminum grille combined double-layer sound-reflecting ceiling, which can meet the sound-reflecting requirements and provide different acoustic changes.

[0005] The technical objectives of the present invention are achieved through the following technical solutions:

[0006] A GRG bottom-hanging aluminum grille combined double-layer sound-reflecting ceiling comprises a steel frame, a GRG sound-reflecting board arranged below the steel frame, and a grille module arranged below the GRG sound-reflecting board; the GRG sound-reflecting board is fully distributed along the bottom of the steel frame, and the GRG sound-reflecting board is arranged to extend obliquely from one side of the bottom of the steel frame to the other side, and the lower part corresponding to the oblique extension of the GRG sound-reflecting board is the sound source area; the grille module is obliquely arranged along the obliquely extended GRG sound-reflecting board, and the surface density of the GRG sound-reflecting board is 120kg / m 2 , thickness is 7cm, and the air permeability of the grid module is at least 50%.

[0007] Furthermore, a number of surface light bridges are arranged at intervals along the inclined extension direction of the GRG sound-reflecting plate, and the surface light bridges are arranged to be concave upward relative to the lower surface of the GRG sound-reflecting plate; and the grille module forms a concave structure under each surface light bridge.

[0008] Furthermore, a sound-absorbing curtain is arranged in each surface light bridge, the sound-absorbing curtain is provided with folds, and the sound-absorbing curtain is arranged in the surface light bridge on the high side close to the GRG sound-reflecting board.

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

[0010] Furthermore, a bearing frame for installing and fixing the GRG sound-reflecting board is provided under the steel frame. The bearing frame and the steel frame are connected by a first vertical connecting member. A fracture is provided on the bearing frame corresponding to the surface light bridge. The surface light bridge is embedded between the fractures of adjacent bearing frames, and the GRG sound-reflecting board is installed above the bearing frame.

[0011] Furthermore, a plurality of second vertical connectors are vertically connected to the lower end surface of the support frame, the upper ends of the second vertical connectors are connected and fixed to the lower end surface of the support frame, and the lower ends of the second vertical connectors are provided with connecting portions for connecting to the grid modules.

[0012] Furthermore, the connecting part includes a threaded hanger, a first angle code, and a second angle code, the upper end of the threaded hanger is connected to the lower end of the second vertical connecting member, the lower end of the threaded hanger is connected to one side of the first angle code, the other side of the first angle code is overlapped with one side of the second angle code and connected by bolts, and the other side of the second angle code is connected to the grille 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, a U-shaped member is installed outside the transverse connecting rod, and the threaded suspension rod passes through the U-shaped opening of the U-shaped member.

[0014] Furthermore, when the sound-absorbing curtain is released, the surface light bridge is extended downward from the surface light bridge, and the extension length is 0.5-1.5m.

[0015] Furthermore, the sound absorbing curtain can be retracted and extended in a horizontal direction or in a vertical direction.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention forms an anti-sound structure above the sound source by setting the GRG anti-sound board. After the sound source is reflected by the anti-sound board, the reverberation effect of the sound in the space is increased, thereby improving the sound quality. The inclined GRG anti-sound board allows the sound source to reflect downward through the anti-sound board, thereby meeting the anti-sound requirements at different positions below the GRG anti-sound board.

[0018] 2. The present invention sets the grille module. On the one hand, the grille module provides sound transmission for GRG sound reflection, ensuring that the sound can reach the GRG sound reflection board, providing basic conditions for sound reflection. On the other hand, since the surface formed by the GRG sound reflection board is relatively flat, the sound will be reflected in a straight line after reaching the GRG sound reflection board during the sound reflection process, resulting in uneven sound reflection effect and sound defects. In addition, the grille module can also play a decorative effect visually.

[0019] 3. The present invention can adjust the angle between the second angle code and the first angle code according to different installation angle requirements through the cooperation of the first angle code and the second angle code of the connecting part, so as to meet the requirements of connecting and fixing the angle position of the grille module.

[0020] 4. The present invention achieves the purpose of local sound absorption by setting up a sound-absorbing curtain in the surface light bridge. The sound-absorbing curtain can also be unfolded or retracted according to the acoustic requirements on site. The sound-absorbing curtain is set in the surface light bridge and is shielded by the grille module to achieve a hidden sound absorption function. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the GRG under-hung aluminum grille combined double-layer sound-reflecting ceiling in Example 1 of the present invention.

[0022] Figure 2 It is a schematic diagram of the connecting portion structure in the present invention.

[0023] Figure 3 It is a schematic diagram of the connection between the threaded hanger rod and the second vertical connecting member through an angle code in Example 1 of the present invention.

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

[0025] Figure 5 It is a schematic diagram of the connection between the second angle code and the grid module in Example 1 of the present invention.

[0026] Figure 6 It is a schematic diagram of the GRG under-hung aluminum grille combined double-layer sound-reflecting ceiling in Example 2 of the present invention.

[0027] Figure 7 It is a schematic diagram of the setting of the sound-absorbing curtain in Example 2 of the present invention.

[0028] Figure 8 It is a schematic diagram of the arrangement of the sound-absorbing curtain in the present invention.

[0029] Fig. 9 It is another schematic diagram of the arrangement of the sound-absorbing curtain in the present invention.

[0030] In the figure, 1, steel frame; 2, GRG sound-reflecting board; 3, grille module; 4, stage; 5, first vertical connecting piece; 6, bearing frame; 7, second vertical connecting piece; 8, connecting part; 9, corner code; 10, surface light bridge; 11, sound-absorbing curtain; 12, track; 13, mobile trolley; 14, electric reel;

[0031] 3-1, grille bar; 3-2, first connecting keel; 3-3, second connecting keel;

[0032] 7-1, transverse connecting rod; 7-2, U-shaped member;

[0033] 8-1, threaded hanger rod; 8-2, first angle code; 8-3, second angle code. DETAILED DESCRIPTION

[0034] The technical solution of the present invention is further described below in conjunction with specific embodiments:

[0035] Example 1

[0036] A GRG bottom-hanging aluminum grille combined double-layer sound-reflecting ceiling, such as Figure 1 As shown, it includes a steel frame 1, a GRG sound-reflecting board 2 arranged under the steel frame 1, and a grille module 3 arranged under the GRG sound-reflecting board 2; the GRG sound-reflecting board 2 is fully distributed along the bottom of the steel frame 1, and the GRG sound-reflecting board 2 is arranged to extend obliquely from one side of the bottom of the steel frame to the other side, and the lower part corresponding to the oblique extension of the GRG sound-reflecting board is the sound source area. In this embodiment, the GRG sound-reflecting board is gradually inclined upward along the upper direction of the stage 4 toward the auditorium to form a sound-reflecting surface; the grille module 3 is inclined along the obliquely extended GRG sound-reflecting board, and the grille module has the same or similar inclination angle as the GRG sound-reflecting board. The surface density of the GRG sound-reflecting board 2 is 120kg / m 2 , with a thickness of 7 cm, the air permeability of the grille module 3 is at least 50%, that is, the pores of the grille module account for no less than 50% of the area of ​​the lower end surface of each grille module.

[0037] The steel frame 1 is made of galvanized channel steel, galvanized square steel and other profiles, and the steel frame is fixed to the top of the building by welding, embedding, chemical bolts and the like, such as a steel beam structure and a 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, a galvanized square steel. The upper end of the first vertical connector 5 is connected to the steel frame 1 by welding, hoop connection, etc., and the lower end is connected to a bearing frame 6. The bearing frame 6 is used to carry and install the GRG sound-reflecting board 2. The bearing frame 6 is formed into a frame structure by welding profiles such as angle steel, and the GRG sound-reflecting board 2 is fixed above the frame structure. A metal back frame is arranged above the GRG sound-reflecting board 2. The metal back frame is welded to the frame structure or connected to the frame structure by bolts or other connecting members.

[0039] A plurality of second vertical connectors 7 are vertically connected to the lower end surface of the support frame 6 , and the upper ends of the second vertical connectors 7 are fixedly connected to the lower end surface of the support frame 6 by welding, and the lower ends of the second vertical connectors 7 are provided with connecting portions 8 for connecting to the grid module 3 .

[0040] Specifically, in one embodiment, Figure 2As shown, the lower end of the second vertical connecting member 7 is provided with a transverse connecting rod 7-1 perpendicular to the second vertical connecting member 7, and a U-shaped member 7-2 is installed outside the transverse connecting rod 7-1. The connecting portion 8 includes a threaded hanging rod 8-1, a first angle code 8-2, and a second angle code 8-3. The upper end of the threaded hanging rod 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 hanging rod 8-1 is connected to one side of the first angle code 8-2, and the other side of the first angle code 8-2 is overlapped with one side of the second angle code 8-3 and connected by bolts, and the other side of the second angle code 8-3 is connected to the grille module.

[0041] In another embodiment, if Figure 3 As shown,

[0042] The threaded hanger rod 8 - 1 is connected and fixed to the lower end of the second vertical connecting member 7 through the angle code 9 , specifically connected to the side of the lower end of the second vertical connecting member 7 , and the angle code 9 and the second vertical connecting member 7 are connected by bolts.

[0043] More specifically, Figure 4 As shown, the grille module 3 includes a plurality of grille bars 3-1 arranged in parallel, the grille bars 3-1 are formed by bending aluminum plates to form a tube structure with openings along the length direction, a first connecting keel 3-2 is arranged above the grille bars 3-1 and perpendicular to the grille bars, the parallel grille bars 3-1 are connected as a whole through the first connecting keel 3-2, a second connecting keel 3-3 is arranged perpendicular to the first connecting keel 3-2, the first connecting keel and the second connecting keel are such as galvanized square steel pipes; the outside of the grille bars 3-1 can be pasted with decorative veneer, sprayed with paint, etc. as needed. The first connecting keel 3-2 and the grille bars 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 code 8-3 is connected to the grille module, a U-shaped piece 7-2 is sleeved on the outside of the second connecting keel, and the second angle code is connected to the U-shaped piece by bolts to achieve connection with the second connecting keel. Figure 5 shown.

[0045] Example 2

[0046] A GRG bottom-hanging aluminum grille combined double-layer sound-reflecting ceiling, such as Figure 6As shown, compared with Example 1, a surface light bridge 10 is added, including a steel frame 1, a GRG sound-reflecting board 2 arranged under the steel frame 1, and a grille module 3 arranged under the GRG sound-reflecting board 2; the GRG sound-reflecting board 2 is fully distributed along the bottom of the steel frame 1, and the GRG sound-reflecting board 2 is arranged to extend obliquely from one side to the other side below the steel frame, and the low position below the oblique extension of the GRG sound-reflecting board is the sound source area; a plurality of surface light bridges 10 are arranged at intervals along the oblique extension direction of the GRG sound-reflecting board 2, and the surface light bridge 10 is arranged to be concave upward relative to the lower surface of the GRG sound-reflecting board, and the bearing frame 6 is provided with a break corresponding to the surface light bridge 10, and the surface light bridge 10 is embeddedly installed between the breaks of adjacent bearing frames 6, and the surface light bridge 10 is connected to the break of the bearing frame 6 by bolts, screws, rivets, etc., and the GRG sound-reflecting board 2 is installed above the bearing frame 6; the grille module 3 forms a concave structure below each surface light bridge 10. The grille module 3 is arranged obliquely along the obliquely extending GRG sound-reflecting board. The grille module has the same or similar inclination angle as the GRG sound-reflecting board. The surface density of the GRG sound-reflecting board 2 is 120 kg / m 2 The permeability of the grid module 3 is at least 50%, that is, the pores of the grid module account for no less than 50% of the area of ​​the lower end surface of each grid module.

[0047] Preferably, a sound absorbing curtain 11 is provided in each surface light bridge. Figure 7 As shown, the sound-absorbing curtain 11 is provided with folds, and the sound-absorbing curtain 11 is arranged in the surface light bridge near the high side of the GRG sound-reflecting board. The material of the sound-absorbing curtain is a curtain material with sound-absorbing effect such as velvet, wool serge fabric, etc.

[0048] Preferably, the sound absorbing curtain is a retractable curtain, which can be retracted horizontally or vertically and can be folded up when not in use. When the sound absorbing curtain is released, the sound absorbing curtain extends downward from the surface light bridge, and the extension length is 0.5-1.5m.

[0049] In one embodiment, the sound absorbing curtain 11 is retracted and extended in the horizontal direction, and a track 12 for retracting and extending the sound absorbing curtain in the horizontal direction is arranged along the lateral extension direction of the surface light bridge. Figure 8 As shown, the sound-absorbing curtain 11 includes two parts, the left and right parts. The sound-absorbing curtain 11 is suspended between the tracks 12 by a moving trolley 13. The moving trolley 13 moves along the tracks 12 to move the sound-absorbing curtain 11 to both sides to achieve the purpose of folding. When it is needed, the moving trolley 13 moves toward the middle position to unfold the sound-absorbing curtain 11. The moving trolley can be driven by a motor on the trolley, or by setting gears, rollers, etc. on the track to drive the moving trolley. Similar designs are common in the field of curtains, such as the drive system for driving electric curtains in the utility model patent document with publication number CN201869141U, and the motor drive system disclosed in the patent document CN201563026U.

[0050] In another embodiment, if Fig. 9 As shown, the sound-absorbing curtain 11 is retracted and extended in the vertical direction, and a plurality of electric reels 14 are arranged along the lateral extension direction of the surface light bridge. The upper end of the sound-absorbing curtain 11 is fixed on the electric reel 14, and a counterweight block is arranged at the lower end of the sound-absorbing curtain. The sound-absorbing curtain is retracted outside the electric reel or unfolded by the rotation of the electric reel 14. The electric reel can be a motor drive shaft that rotates to achieve the retraction of the sound-absorbing curtain, or it can be an electric roller with a self-rotation effect. When the design of vertical retraction is adopted, the folds of the sound-absorbing curtain are preferably arranged in the horizontal direction.

[0051] This embodiment is only a further explanation of the present invention, not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to this embodiment as needed, but as long as it is within the scope of the claims of the present invention, it will be protected by the patent law.

Claims

1. A GRG bottom-hanging aluminum grille combined double-layer sound-reflecting ceiling, characterized in that: The invention comprises a steel frame, a GRG sound-reflecting plate arranged under the steel frame, and a grille module arranged under the GRG sound-reflecting plate; the GRG sound-reflecting plate is fully distributed along the bottom of the steel frame, and the GRG sound-reflecting plate is arranged to extend obliquely from one side of the bottom of the steel frame to the other side, and the lower part corresponding to the oblique extension of the GRG sound-reflecting plate is the sound source area; the grille module is arranged obliquely along the obliquely extended GRG sound-reflecting plate, and the surface density of the GRG sound-reflecting plate is 120kg / m 2 , with a thickness of 7 cm, and the air permeability of the grid module is at least 50%.

2. The GRG bottom-hanging aluminum grille combined double-layer sound-reflecting ceiling according to claim 1 is characterized in that: A plurality of surface light bridges are arranged at intervals along the inclined extension direction of the GRG sound reflector plate, and the surface light bridges are arranged to be concave upward relative to the lower surface of the GRG sound reflector plate; and the grille module forms a concave structure corresponding to the lower side of each surface light bridge.

3. The GRG bottom-hanging aluminum grille combined double-layer sound-reflecting ceiling according to claim 2 is characterized in that: A sound-absorbing curtain is arranged in each of the surface light bridges. The sound-absorbing curtain is provided with folds. The sound-absorbing curtain is arranged in the surface light bridge on a side close to a high position of the GRG sound-reflecting plate.

4. The GRG bottom-hanging aluminum grille combined double-layer sound-reflecting ceiling according to claim 3 is characterized in that: The sound absorbing curtain is a retractable curtain.

5. The GRG bottom-hanging aluminum grille combined double-layer sound-reflecting ceiling according to claim 2 is characterized in that: A bearing frame for installing and fixing the GRG sound-reflecting board is provided under the steel frame. The bearing frame and the steel frame are connected by a first vertical connecting member. The bearing frame is provided with a break corresponding to the surface light bridge. The surface light bridge is embedded between the breaks of adjacent bearing frames, and the GRG sound-reflecting board is installed above the bearing frame.

6. The GRG bottom-hanging aluminum grille combined double-layer sound-reflecting ceiling according to claim 5 is characterized in that: A plurality of second vertical connectors are vertically connected to the lower end surface of the support frame, the upper ends of the second vertical connectors are connected and fixed to the lower end surface of the support frame, and the lower ends of the second vertical connectors are provided with connecting portions for connecting to the grille modules.

7. The GRG bottom-hanging aluminum grille combined double-layer sound-reflecting ceiling according to claim 6 is characterized in that: The connecting part includes a threaded hanger, a first angle code, and a second angle code. The upper end of the threaded hanger is connected to the lower end of the second vertical connecting member, the lower end of the threaded hanger is connected to one side of the first angle code, the other side of the first angle code is overlapped with one side of the second angle code and connected by bolts, and the other side of the second angle code is connected to the grille module.

8. The GRG bottom-hanging aluminum grille combined double-layer sound-reflecting ceiling according to claim 7 is characterized in that: A transverse connecting rod is arranged at the lower end of the second vertical connecting member perpendicular to the second vertical connecting member, a U-shaped member is installed outside the transverse connecting rod, and the threaded suspension rod passes through the U-shaped opening of the U-shaped member.

9. The GRG bottom-hanging aluminum grille combined double-layer sound-reflecting ceiling according to claim 3 is characterized in that: When the sound-absorbing curtain is released, it extends downward from the surface light bridge, and the extension length is 0.5-1.5m.

10. The GRG bottom-hanging aluminum grille combined double-layer sound-reflecting ceiling according to claim 4 is characterized in that: The sound absorbing curtain can be retracted and extended in a horizontal direction or in a vertical direction.

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