Double-layer light steel soundproof wall surface structure

Abstract

The utility model discloses a double -deck light steel sound insulation wall surface structure belongs to building construction technical field. Including prefabricated stair, prefabricated stair is fixed in wall surface and is perpendicular to the setting with wall surface still includes: stair apron, set up in prefabricated stair surface, stair apron is provided with several along the direction of travel of prefabricated stair, the side away from prefabricated stair of stair apron is provided with elastic layer, light steel sound insulation board, fixed in stair apron one side towards wall surface, light steel sound insulation board and wall surface abut, light steel sound insulation board extends along wall surface towards the direction away from stair apron. The utility model discloses through the elastic layer on stair apron can reduce the sound of user's treading prefabricated stair, and through light steel sound insulation board and extension board complete the covering to wall surface, and then reduce the sound of passing through wall surface from stair one side, reach the effect of sound insulation and noise reduction to stair part wall surface.

Description

Technical Field

[0001] This utility model relates to a double-layer light steel soundproof wall structure and belongs to the field of building construction technology. Background Technology

[0002] During interior decoration construction, soundproof wall panels are installed on the wall surface in areas where a high degree of quietness is required to improve the wall's sound insulation and noise reduction capabilities.

[0003] Conventional soundproof walls are usually installed on walls that connect to a flat floor. However, for walls around stairs, since stairs have a stepped structure, conventional prefabricated soundproof walls cannot be used. Furthermore, the noise generated by footsteps on stairs can reduce the sound insulation effect of conventional soundproof walls, thus posing certain problems. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a double-layer light steel soundproof wall structure, which solves the problem that conventional prefabricated soundproof walls cannot be adapted in the prior art, and that the sound insulation effect of conventional soundproof walls is reduced due to the loud noise generated by stepping on stairs.

[0005] The technical problem to be solved by this utility model is achieved by the following technical solution: a double-layer light steel soundproof wall structure, including a prefabricated staircase, the prefabricated staircase being fixed to the wall and perpendicular to the wall, and further including:

[0006] Staircase sidings are installed on the surface of precast stairs. Several staircase sidings are installed along the direction of travel of the precast stairs, and an elastic layer is installed on the side of the staircase sidings away from the precast stairs.

[0007] Lightweight steel sound insulation panels are fixed to the side of the stair railing facing the wall. The panels abut against the wall and extend along the wall away from the stair railing.

[0008] The extension plate is slidably installed inside the light steel sound insulation board, and its end abuts against the outer side of the prefabricated staircase.

[0009] A threaded rod is rotatably mounted on the light steel sound insulation panel. The extension direction of the threaded rod is the same as the sliding direction of the expansion plate. The threaded rod extends into the expansion plate and is threadedly connected to the expansion plate.

[0010] Stacked sound insulation panels are installed on the side of the light steel sound insulation panel away from the stairwell panel. The interior of the stacked sound insulation panels has a hollow structure forming a filling cavity, which is filled with filling material.

[0011] A fixing structure is installed between the stair railing and the prefabricated staircase. The fixing structure is used to fix the stair railing to the prefabricated staircase.

[0012] By adopting the above technical solution, stair railings are laid on the prefabricated stairs and fixed to light steel sound insulation panels. The light steel sound insulation panels cover the wall while the stair railings cover the prefabricated stairs. The elastic layer on the stair railings reduces the sound of users stepping on the prefabricated stairs. By rotating the threaded rod, the extension plate can be adjusted to move out from within the light steel sound insulation panel and abut against the prefabricated stairs. This allows the light steel sound insulation panel and the extension plate to cover the wall, thereby reducing the sound passing through the wall from one side of the stairs. This achieves sound insulation and noise reduction for the stair section of the wall, improving the noise reduction effect of traditional soundproof walls on the stair section.

[0013] The present invention is further configured such that the fixing structure includes:

[0014] Threaded holes are made in prefabricated stairs.

[0015] A rotating block is rotatably mounted on the stair railing, with the rotating block facing the direction of the prefabricated staircase and penetrating through the stair railing.

[0016] A connecting hole is formed through the rotating block, and the connecting hole can be aligned with the threaded hole.

[0017] The connecting bolt has one end located inside the connecting hole, and the other end extends into the threaded hole and is threadedly connected to it.

[0018] The locking nut, with its thread on the connecting bolt, is located on the side of the stair panel facing the precast staircase and abuts against the rotating block.

[0019] By adopting the above technical solution, after placing the stair railing on the prefabricated staircase, the connecting bolts are first passed through the connecting holes, and then the locking nuts are screwed into the connecting bolts so that the locking nuts abut against the rotating block. At this time, the locking nuts and connecting bolts can rotate with the rotating block. By first aligning the connecting bolts with the threaded holes and then rotating the connecting bolts, the connecting bolts can be gradually screwed into the threaded holes, thus completing the connection between the stair railing and the prefabricated staircase. At this time, the distance between the stair railing and the prefabricated staircase can be adjusted by controlling the depth of the connecting bolts screwed into the threaded holes, thereby improving the installation freedom of the stair railing.

[0020] The present invention is further configured such that: a light rod extending in the same direction as the sliding direction of the expansion plate is fixedly installed on the light steel sound insulation board; the end of the light rod is inserted into the expansion plate and slides against the expansion plate; the end of the light rod and the threaded rod away from the expansion plate extends to the outside of the light steel sound insulation board and is inserted into the filling cavity.

[0021] By adopting the above technical solution, by fixing the light rod on the light steel sound insulation board, the stacked sound insulation board can be fixed to the light steel sound insulation board through the threaded rod and the end of the light rod inserted into the filling cavity when the stacked sound insulation board is installed later. After the filling material is set in the filling cavity, the connection strength between the stacked sound insulation board and the light steel sound insulation board can be improved, thereby improving the stability of the stacked sound insulation board.

[0022] The present invention is further configured such that: a plurality of placement slots are provided on the side of the stair railing facing the precast staircase, and airbags are fixedly filled in the placement slots; an air inlet is fixedly provided at one end of the stair railing along the direction of travel of the precast staircase, and an air guide channel is provided at the other end of the stair railing; the air inlet is connected to the airbag and the air guide channel respectively; the air inlet on one stair railing can be inserted into the air guide channel of the adjacent stair railing and connected, and the connection between the air inlet and the air guide channel is sealed.

[0023] By adopting the above technical solution, when there is a gap between the stair railing and the precast stairs, an inflation device is connected to an external air inlet port that is not inserted into the air channel, and the air channel that is not inserted into the air inlet port is blocked. This allows gas to be transmitted through the air inlet port to the airbag and the air channel. At this time, the gas is transmitted through the air channel to the air inlet port of the adjacent stair railing, thereby inflating the airbags in multiple stair railings. After the airbags are inflated, they expand and fill the gap between the stair railing and the precast stairs, while also supporting the stair railing, thereby improving the stability of the connection between the stair railing and the precast stairs.

[0024] The present invention is further configured such that: an external bracket is fixedly installed at one end of the stair railing opposite to the light steel sound insulation board, and an installation groove is provided on the external bracket; the ends of the external brackets on adjacent stair railings are aligned so that the installation grooves are connected to each other to form a through groove.

[0025] The present invention is further configured such that: a number of locking holes are provided through the side of the external bracket away from the stair railing, and studs with their ends extending into the mounting groove are threaded into the locking holes.

[0026] By adopting the above technical solution, a plate-shaped enclosure can be installed in the through groove. After the enclosure is inserted into the installation groove, a stud is inserted into the locking hole and the end of the stud abuts against the enclosure to fix the enclosure, thereby improving the expandability of the stair enclosure.

[0027] The beneficial effects of this utility model are as follows: By laying a stair railing on the prefabricated staircase and fixing the stair railing to the light steel sound insulation board, the light steel sound insulation board covers the wall while the stair railing covers the prefabricated staircase. At this time, the elastic layer on the stair railing can reduce the sound of users stepping on the prefabricated staircase. By rotating the threaded rod, the extension plate can be adjusted to move out from the light steel sound insulation board and abut against the prefabricated staircase. In this way, the light steel sound insulation board and the extension plate can complete the coverage of the wall, thereby reducing the sound passing through the wall from one side of the staircase, achieving the effect of sound insulation and noise reduction of the staircase wall, which is beneficial to improving the noise reduction effect of traditional sound insulation walls on the staircase. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of this utility model;

[0029] Figure 2 This is a structural schematic diagram of the stair railing of this utility model facing the prefabricated staircase.

[0030] Figure 3 This is an exploded view of the structure of this utility model.

[0031] In the diagram: 10. Precast staircase; 11. Threaded hole; 12. Staircase enclosure; 13. Connecting hole; 14. Connecting bolt; 15. Locking nut; 16. Air inlet port; 17. Air duct; 18. External bracket; 19. Mounting slot; 20. Locking hole; 21. Placement slot; 22. Airbag; 23. Light steel sound insulation board; 24. Stacked sound insulation board; 25. Expansion plate; 26. Threaded rod; 27. Smooth rod; 28. Filling cavity; 29. ​​Rotating block. Detailed Implementation

[0032] In order to make the technical means, creative features, objectives and effects of this utility model easier to understand, the following description, in conjunction with specific illustrations, further elaborates on this utility model.

[0033] like Figure 1-2 As shown, the double-layer light steel soundproof wall structure includes a prefabricated staircase 10, which is arranged in a stepped manner and fixed to the wall perpendicular to it. It also includes stair railings 12, light steel soundproof panels 23, stacked soundproof panels 24, extension plates 25, threaded rods 26, and a fixing structure. The stair railings 12 are installed on the surface of the prefabricated staircase 10, and several stair railings 12 are arranged along the direction of travel of the prefabricated staircase 10. An elastic layer is provided on the side of the stair railings 12 away from the prefabricated staircase 10. Adjacent stair railings 12 are stacked on top of each other, i.e., one end of the upper stair railing 12 presses against the lower stair railing 12. Figure 3The stacked state of the two stair balustrades 12 is shown. A light steel sound insulation panel 23 is fixed to the side of the stair balustrade 12 facing the wall, abutting against the wall and extending along the wall away from the stair balustrade 12. An extension plate 25 is slidably disposed within the light steel sound insulation panel 23, with its end abutting against the horizontal and upward-facing side of the prefabricated stair 10. A threaded rod 26 is rotatably disposed on the light steel sound insulation panel 23, extending in the same direction as the sliding of the extension plate 25. The threaded rod 26 extends into the extension plate 25 and is threadedly connected to it. A stacked sound insulation panel 24 is disposed on the side of the light steel sound insulation panel 23 away from the stair balustrade 12. The stacked sound insulation panel 24 has a hollow structure forming a filling cavity 28, which is filled with a filling material, such as expanding foam or concrete mortar. The light steel sound insulation panel 23 and the stacked sound insulation panel 24 can be bonded and filled with adhesive or structural adhesive between them and the wall. A fixing structure is set between the stair railing 12 and the prefabricated stair 10, and the fixing structure is used to fix the stair railing 12 to the prefabricated stair 10.

[0034] like Figure 3 As shown, the fixing structure includes a threaded hole 11, a connecting hole 13, a connecting bolt 14, a locking nut 15, and a rotating block 29. The threaded hole 11 is formed on the precast staircase 10, and several threaded holes 11 are provided. The rotating block 29 is rotatably mounted on the staircase enclosure 12, and the rotating block 29 passes through the staircase enclosure 12 in the direction of the precast staircase 10. The rotating block 29 is vertically aligned with the threaded hole 11. The connecting hole 13 is formed through the rotating block 29 and can be aligned with the threaded hole 11. The end of the connecting hole 13 away from the threaded hole 11 is countersunk. One end of the connecting bolt 14 is located in the connecting hole 13, and the other end of the connecting bolt 14 extends into the threaded hole 11 and is threadedly connected to the threaded hole 11. The countersunk end of the connecting bolt 14 can abut against the connecting hole 13 to restrict the unidirectional displacement of the connecting bolt 14. The locking nut 15 is threaded onto the connecting bolt 14. The locking nut 15 is located on the side of the stair panel 12 facing the precast stair 10 and abuts against the rotating block 29. When the locking nut 15 abuts against the rotating block 29, the connecting bolt 14 cannot move axially and can only rotate by means of the rotating block 29.

[0035] like Figure 3 As shown, a smooth rod 27 extending in the same direction as the sliding direction of the expansion plate 25 is fixedly installed on the light steel sound insulation panel 23. The end of the smooth rod 27 is inserted into the expansion plate 25 and slides against the expansion plate 25. The ends of the smooth rod 27 and the threaded rod 26 away from the expansion plate 25 extend to the outside of the light steel sound insulation panel 23 and are inserted into the filling cavity 28.

[0036] like Figure 1 and Figure 3As shown, the stair railing 12 has several placement slots 21 on its side facing the precast stair 10. Airbags 22 are fixedly filled in the placement slots 21. An air inlet port 16 is fixedly provided at one end of the stair railing 12 along the travel direction of the precast stair 10, and an air guide channel 17 is provided at the other end of the stair railing 12. The air inlet port 16 is connected to the airbags 22 and the air guide channel 17 respectively. When the stair railing 12 is in the installation position, the side with the higher vertical height is the air guide channel 17, and the side with the lower vertical height is the air inlet port 16. The air inlet port 16 and the air guide channel 17 are located in the part of the stair railing 12 that can be stacked. When two adjacent stair railings 12 are stacked, the air inlet port 16 on one stair railing 12 can be inserted into the air guide channel 17 of the adjacent stair railing 12 and connected to the air guide channel 17. A rubber sealing layer is fixedly provided on the outside of the air inlet port 16 to seal the connection between the air inlet port 16 and the air guide channel 17. When inflating the airbag 22 through the air inlet 16, the air channel 17 on the highest stair railing 12 should be sealed by plugging, grouting or other means.

[0037] like Figure 3 As shown, an external bracket 18 is fixedly installed at the end of the stair railing 12 opposite to the light steel sound insulation board 23. The external bracket 18 has an installation groove 19. The ends of the external brackets 18 on adjacent stair railings 12 are aligned so that the installation grooves 19 are interconnected to form a through groove. Several locking holes 20 are provided through the side of the external bracket 18 away from the stair railing 12. Studs extending into the installation groove 19 are threaded into the locking holes 20. A plate-shaped barrier can be installed in the through groove. After the barrier is inserted into the installation groove 19, the studs are inserted into the locking holes 20, and the ends of the studs abut against the barrier to fix it in place. Simultaneously, sealant can be filled into the gap between the barrier and the installation groove 19 to reduce barrier vibration. This improves the expandability of the stair railing 12.

[0038] By laying a staircase enclosure 12 on the prefabricated staircase 10 and fixing the staircase enclosure 12 to the light steel sound insulation board 23, the light steel sound insulation board 23 covers the wall while the staircase enclosure 12 covers the prefabricated staircase 10. At this time, the elastic layer on the staircase enclosure 12 can reduce the sound of users stepping on the prefabricated staircase 10. By rotating the threaded rod 26, the extension plate 25 can be adjusted to move out from the light steel sound insulation board 23 and abut against the prefabricated staircase 10. In this way, the light steel sound insulation board 23 and the extension plate 25 can complete the coverage of the wall, thereby reducing the sound passing through the wall from one side of the staircase, achieving the effect of sound insulation and noise reduction of the staircase wall, which is beneficial to improving the noise reduction effect of traditional sound insulation walls on the staircase.

[0039] After placing the stair railing 12 on the prefabricated stair 10, first pass the connecting bolt 14 through the connecting hole 13, and then screw the locking nut 15 onto the connecting bolt 14 so that the locking nut 15 abuts against the rotating block 29. At this time, the locking nut 15 and the connecting bolt 14 can rotate with the rotating block 29. By first aligning the connecting bolt 14 with the threaded hole 11, and then rotating the connecting bolt 14, the connecting bolt 14 can be gradually screwed into the threaded hole 11, thus completing the connection between the stair railing 12 and the prefabricated stair 10. At this time, the distance between the stair railing 12 and the prefabricated stair 10 can be adjusted by controlling the depth of the connecting bolt 14 screwed into the threaded hole 11, thereby improving the installation freedom of the stair railing 12.

[0040] By fixing the light steel sound insulation panel 23 with the light rod 27, when the stacked sound insulation panel 24 is subsequently installed, the stacked sound insulation panel 24 can be fixed to the light steel sound insulation panel 23 by inserting the threaded rod 26 and the light rod 27 into the end of the filling cavity 28. After the filling material is placed in the filling cavity 28, the connection strength between the stacked sound insulation panel 24 and the light steel sound insulation panel 23 can be improved, thereby improving the stability of the stacked sound insulation panel 24.

[0041] When there is a gap between the stair railing 12 and the prefabricated stair 10, an inflation device is connected to an external air inlet port 16 that is not inserted into the air channel 17, and the air channel 17 that is not inserted into the air inlet port 16 is blocked, so that the gas is transmitted through the air inlet port 16 to the airbag 22 and the air channel 17. At this time, the gas is transmitted through the air channel 17 to the air inlet port 16 of the adjacent stair railing 12, thereby inflating the airbags 22 in multiple stair railings 12. After the airbags 22 are inflated, they expand and fill the gap between the stair railing 12 and the prefabricated stair 10, while supporting the stair railing 12, thereby improving the stability of the connection between the stair railing 12 and the prefabricated stair 10.

[0042] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments, and various changes and modifications can be made without departing from the spirit and scope of this utility model. All such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A double-layer light steel soundproof wall structure, including a prefabricated staircase (10), wherein the prefabricated staircase (10) is fixed to the wall and installed perpendicular to the wall, characterized in that: Also includes: Staircase siding (12) is installed on the surface of the precast staircase (10). Several staircase sidings (12) are installed along the travel direction of the precast staircase (10). An elastic layer is provided on the side of the staircase siding (12) away from the precast staircase (10). A light steel sound insulation panel (23) is fixed to the side of the stair railing (12) facing the wall. The light steel sound insulation panel (23) abuts against the wall and extends along the wall in a direction away from the stair railing (12). An extension plate (25) is slidably installed inside a light steel sound insulation board (23), and the end of the extension plate (25) abuts against the outer side of the prefabricated staircase (10). A threaded rod (26) is rotatably mounted on a light steel sound insulation plate (23). The extension direction of the threaded rod (26) is the same as the sliding direction of the expansion plate (25). The threaded rod (26) extends into the expansion plate (25) and is threadedly connected to the expansion plate (25). Stacked sound insulation panels (24) are placed on the side of the light steel sound insulation panel (23) away from the stair railing (12). The interior of the stacked sound insulation panels (24) is a hollow structure forming a filling cavity (28), and the filling cavity (28) is filled with filling material. A fixing structure is installed between the stair railing (12) and the prefabricated staircase (10). The fixing structure is used to fix the stair railing (12) to the prefabricated staircase (10).

2. The double-layer light steel soundproof wall structure according to claim 1, characterized in that: The fixed structure includes: A threaded hole (11) is provided on the precast staircase (10). A rotating block (29) is rotatably mounted on the stair railing (12). The rotating block (29) passes through the stair railing (12) in the direction of the prefabricated staircase (10). A connecting hole (13) is formed through the rotating block (29), and the connecting hole (13) can be aligned with the threaded hole (11). The connecting bolt (14) has one end located inside the connecting hole (13), and the other end extends into the threaded hole (11) and is threadedly connected to the threaded hole (11). A locking nut (15) is threaded onto a connecting bolt (14). The locking nut (15) is located on the side of the stair panel (12) facing the precast staircase (10) and abuts against the rotating block (29).

3. The double-layer light steel soundproof wall structure according to claim 1, characterized in that: A smooth rod (27) with the same extension direction as the sliding direction of the expansion plate (25) is fixedly installed on the light steel sound insulation board (23). The end of the smooth rod (27) is inserted into the expansion plate (25) and slides against the expansion plate (25). The ends of the smooth rod (27) and the threaded rod (26) away from the expansion plate (25) extend to the outside of the light steel sound insulation board (23) and are inserted into the filling cavity (28).

4. The double-layer light steel soundproof wall structure according to claim 1, characterized in that: The stair railing (12) has several placement slots (21) on the side facing the precast staircase (10). Airbags (22) are fixedly filled in the placement slots (21). An air inlet port (16) is fixedly provided at one end of the stair railing (12) along the direction of travel of the precast staircase (10). An air guide channel (17) is provided at the other end of the stair railing (12). The air inlet port (16) is connected to the airbag (22) and the air guide channel (17) respectively. The air inlet port (16) on one stair railing (12) can be inserted into the air guide channel (17) of the adjacent stair railing (12) and connected. The connection between the air inlet port (16) and the air guide channel (17) is sealed.

5. The double-layer light steel soundproof wall structure according to claim 1, characterized in that: An external bracket (18) is fixedly installed at one end of the stair railing (12) opposite to the light steel sound insulation board (23). An installation groove (19) is opened on the external bracket (18). The ends of the external brackets (18) on adjacent stair railings (12) are aligned so that the installation grooves (19) are connected to each other to form a through groove.

6. The double-layer light steel soundproof wall structure according to claim 5, characterized in that: The side of the external bracket (18) away from the stair railing (12) has several locking holes (20) through it, and the locking holes (20) are threaded with studs whose ends extend into the mounting groove (19).

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