Building sound insulation system and construction method thereof

Abstract

The invention discloses a building sound insulation system and a construction method, the building sound insulation system comprises a suspender assembly, the suspender assembly is connected with a sound insulation supporting structure, and the sound insulation supporting structure is connected with a sound insulation structure; the sound insulation supporting structure comprises a first supporting structure, the first supporting structure is connected with a suspender assembly, the first supporting structure is connected with a first plate layer, and the first plate layer is provided with a plurality of porous sound absorption plates; the sound insulation supporting structure further comprises a second supporting structure, the second supporting structure is connected with the suspender assembly, the second supporting structure is connected with a second plate layer, and the second plate layer is provided with a plurality of sealing plates. And the sealing plate is positioned below the porous sound-absorbing plate. According to the description of the scheme, the scheme has the beneficial effects that the structure is simple, the design is reasonable, and the bass noise transmitted from the upper part can be effectively eliminated, so that the impact sound of upstairs floor slabs is isolated.

Description

Technical Field

[0001] The invention relates to the field of building sound insulation, and in particular to a building sound insulation system and a construction method thereof. Background Art

[0002] Our ordinary houses generally use reinforced concrete floor slabs with a thickness of 120 mm. For this type of floor slab, the airborne sound insulation can reach 50 decibels. If the surface is covered with floor tiles, it often reaches 53 decibels. For the floor slab, without any treatment, it can already meet the requirements of domestic high-quality residential buildings. As for impact sound insulation, the impact sound insulation of the 120 mm thick reinforced concrete floor slab is far from meeting the minimum requirements of impact sound insulation for domestic residential buildings. Therefore, the sound insulation problem of the floor slab is mainly impact sound insulation, not airborne sound insulation. Impact sound is a low-frequency noise with a frequency range of 20-500Hz. It has the characteristics of small frequency, long wavelength, long propagation distance, strong penetration and weak attenuation. It has a certain impact on human health and may cause physical and psychological discomfort. Due to the strong penetration and weak attenuation of impact sound insulation, it is actually useless to increase the thickness of the floor slab. The impact sound insulation of 120 mm thick floor slabs and 150 mm thick floor slabs is almost the same; adding sound insulation felt has little effect. Summary of the invention

[0003] The present invention aims at the deficiencies in the prior art and provides a building sound insulation system and a construction method thereof which has a simple structure, a reasonable design and can effectively eliminate the bass noise transmitted from above, thereby isolating the impact sound of the upper floor.

[0004] In order to achieve the above object, the present invention provides a building sound insulation system, including a hanger assembly, the hanger assembly is connected to a sound insulation support structure, and the sound insulation support structure is connected to a sound insulation structure; The sound insulation support structure comprises a support structure 1, the support structure 1 is connected to the suspension rod assembly, the support structure 1 is connected to a board layer 1, and the board layer 1 is provided with a plurality of porous sound absorbing panels; The sound insulation support structure further includes a second support structure, the second support structure is connected to the suspension rod assembly, the second support structure is connected to a second board layer, and the second board layer is provided with a plurality of sealing plates; The supporting structure 1 is located above the supporting structure 2, so that the porous sound-absorbing panel is located above the sealing panel to form the sound insulation structure.

[0005] Furthermore, the hanger assembly includes hanger 1, hanger 1 is connected to the top floor, hanger 1 is connected to a shock absorbing structure, the shock absorbing structure is connected to hanger 2, the upper end of hanger 2 is connected to support structure 1, and the lower end of hanger 2 is connected to support structure 2.

[0006] Furthermore, the shock absorbing structure includes a threaded sleeve 1, a lower end of the suspension rod is provided with an external thread, and the threaded sleeve 1 is threadedly connected to the lower end of the suspension rod; The bottom of the threaded sleeve is fixedly connected to a support plate, the upper surface of the support plate is provided with a rubber block, and the rubber block and the support plate are integrally provided with a through hole one which passes through from top to bottom; The shock absorbing structure further comprises a connecting plate, wherein the connecting plate is provided with a second through hole penetrating the upper and lower surfaces; The shock absorbing structure further comprises a screw rod, the screw rod passes through the through hole 1 and the through hole 2 from bottom to top, the upper end of the screw rod is threadedly connected with at least two nuts, and a disc spring is squeezed and clamped between the nuts; A suspension rod 3 is arranged in the middle of the lower surface of the connecting plate, an external thread is arranged at the lower end of the suspension rod 3, and the lower end of the suspension rod 3 is threadedly connected to the suspension rod 2.

[0007] Furthermore, the second suspension rod comprises a body, the upper end of which is fixedly connected with a second threaded sleeve, and the second threaded sleeve is threadedly connected with the third suspension rod; The outer side of the upper end of the threaded sleeve 2 is evenly provided with four connecting parts 1 extending outward along the normal direction thereof, and the connecting parts 1 are connected to the supporting structure 1; The lower end of the second suspension rod is provided with an external thread and is threadedly connected with a connecting piece, the connecting piece includes a threaded sleeve three, and the outer side of the upper end of the threaded sleeve three is evenly provided with four connecting parts two extending outward along its normal direction, and the connecting parts two are connected to the supporting structure two.

[0008] Further, the supporting structure one / two comprises a supporting beam, the supporting beam comprises a supporting beam web, the two sides of the supporting beam web are respectively connected with downward supporting beam wing plates, the lower side of the supporting beam wing plate is connected with an inwardly bent portion, the lower side of the inwardly bent portion is connected with an outwardly flared portion, and the lower side of the flared portion is connected with an outwardly extending flat portion; The web plate of the support beam, the flange plate of the support beam and the two ends of the inner bending portion are clamped to the connection portion 1 or the connection portion 2, so that the support beam and the connection portion 1 / 2 form a support structure 1 / 2 having multiple rectangular frames; The flat extension portion is connected to the porous sound absorbing plate or the sealing plate.

[0009] Furthermore, tower-shaped sound-absorbing cotton is arranged on the upper surface of the sealing plate.

[0010] Further, the lower end of the second suspension rod is threadedly connected to a support structure 3, the support structure 3 includes a suspension member, the suspension member includes a suspension member upper wing plate, a suspension member web plate, a suspension member lower wing plate and a folded plate parallel to the suspension member web plate, the suspension member upper wing plate is provided with a threaded hole and is threadedly connected to the second suspension rod; A ceiling main beam is sandwiched between the web plate of the hanging member, the lower wing plate of the hanging member and the return plate, and a ceiling secondary beam is connected to the lower side of the ceiling main beam; A tension bolt is arranged between the folded plate and the web of the hanging member.

[0011] Furthermore, the ceiling main beam includes an upper wing plate of the main beam, a web plate of the main beam and a lower wing plate of the main beam, the web plate of the main beam is closely attached to the folded plate, and the lower wing plate of the main beam is closely attached to the lower wing plate of the hanging member; The ceiling sub-beam comprises a sub-beam web, the sub-beam web is connected with an upward sub-beam wing, the sub-beam wing is provided with a folded edge inwardly on the upper side, and the folded edge is closely attached to the lower wing of the main beam; The secondary beam web is connected with a ceiling panel.

[0012] Furthermore, the ceiling main beam and the ceiling secondary beam are connected with a clamping member, the clamping member includes a longitudinal portion, the upper end of the longitudinal portion is provided with a hooking portion hooked to the wing plate on the main beam, the lower end of the longitudinal portion is provided with a hanging portion with a wider portion than the longitudinal portion, and the hanging portion hangs the folded edge; The center line portion of the web of the secondary beam protrudes upward, so that the hanging portion is clamped with the folded edge.

[0013] The construction method of the above-mentioned building sound insulation system comprises the following steps: Step 1: Set up boom 1; Step 2: Set up the shock-absorbing structure, specifically, firstly connect the threaded sleeve 1 with the rubber block and the support plate with the lower end of the suspension rod, then align the through hole 2 of the connecting plate with the through hole, then pass the screw rod upward through the through hole 2 and the through hole 1, and then connect multiple nuts to the upper end of the screw rod, with a disc spring sandwiched between the multiple nuts, and tighten the nuts above and below the disc spring in opposite directions; Step 3: First, thread the second suspension rod to the lower end of the third suspension rod by means of the second threaded sleeve, and then thread the connecting piece to the lower end of the second suspension rod by means of the third threaded sleeve; Step 4: Adjust the angles of the connection part 1 and the connection part 2, and clamp the support beam to form a rectangular frame of the support structure 1 / 2; Step 5: Connect the porous sound-absorbing panel to the flat extension of the support beam of the supporting structure 1 by self-tapping screws; Step 6: Connect the sealing plate with the tower-shaped sound-absorbing cotton to the flat extension part of the supporting beam of the supporting structure 2 by self-tapping screws; Step 7: Install the ceiling fixtures, main ceiling beams, secondary ceiling beams, and ceiling panels.

[0014] The beneficial effects of this scheme can be known from the description of the above scheme. It has a simple structure and reasonable design and has the following advantages: (1) Since the porous sound-absorbing structure can effectively handle low-frequency noise that propagates over a long distance in a high-density object, this solution uses a porous sound-absorbing panel and sets a sealing panel under the porous sound-absorbing panel to form a cavity, which can effectively eliminate the bass noise coming from above and effectively isolate the impact sound of the floor above; (2) Since the frequency of low-frequency noise eliminated by the porous sound-absorbing structure is highly correlated with the aperture, plate thickness and volume behind the porous sound-absorbing panel, but setting sound-absorbing cotton behind the porous sound-absorbing panel can effectively expand the frequency range of eliminating bass noise, so an attraction surface is set, and the material of the tower-shaped sound-absorbing cotton is safe, so the tower-shaped sound-absorbing cotton is used; (3) In sound insulation projects, interrupting the sound bridge is critical, because the rubber damping and shock-absorbing structure can effectively reduce the vibration and sound transmitted downward along the hanger assembly; (4) When setting a ceiling under the sealing plate, the consideration is still to interrupt the sound bridge. The roof usually has lamps installed and wires are led in. If the wires are led down from the floor, it is easy to form a hole from top to bottom, resulting in a sound bridge. Therefore, a ceiling is set up and the wires are passed between the ceiling panel and the sealing plate to prevent the sound bridge from being generated by the hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a structural schematic diagram of the suspension rod assembly of the present invention; Figure 3 for Figure 2 Right view of; Figure 4 It is a structural schematic diagram of the shock absorbing structure of the present invention; Figure 5 It is a structural schematic diagram of the connecting piece of the present invention; Figure 6 for Figure 5 A top view of Figure 7 A bottom view of the present invention under the porous sound-absorbing panel; Figure 8 for Figure 7 Schematic diagram of the structure without the porous sound-absorbing panel; Fig. 9 for Figure 8 A-A section view; Fig.10 for Figure 3 A-A section view; In the figure, 1. suspension rod assembly; 11. suspension rod 1; 12. shock absorbing structure; 121. threaded sleeve 1; 122. support plate; 123. rubber block; 124. connecting plate; 125. screw; 126. nut; 127. disc spring; 128. suspension rod 3; 13. suspension rod 2; 131. threaded sleeve 2; 132. connection part 1; 14. connection piece; 141. threaded sleeve 3; 142. connection part 2; 15. suspension piece; 151. upper wing plate of suspension piece; 152. web plate of suspension piece; 153. lower wing plate of suspension piece; 154. folding plate; 2. sound insulation support structure; 21 , support beam; 211, web of support beam; 212, wing of support beam; 213, inner bending part; 214, flaring part; 215, horizontal extension part; 22, main beam of ceiling; 221, upper wing of main beam; 222, web of main beam; 223, lower wing of main beam; 23, auxiliary beam of ceiling; 231, web of auxiliary beam; 232, wing of auxiliary beam; 233, folding edge; 24, snap-fit ​​part; 241, longitudinal part; 242, hooking part; 243, hanging part; 3, sound insulation structure; 31, porous sound-absorbing panel; 32, sealing plate; 33, tower-shaped sound-absorbing cotton; 34, ceiling panel. DETAILED DESCRIPTION

[0016] In order to clearly illustrate the technical features of this solution, this solution is described below through a specific implementation method.

[0017] like Figure 1 As shown, this embodiment is a building sound insulation system, comprising a hanger assembly 1, the hanger assembly 1 is connected to a sound insulation support structure 2, and the sound insulation support structure 2 is connected to a sound insulation structure 3; The sound insulation support structure 2 includes a support structure 1, the support structure 1 is connected to the suspension rod assembly 1, the support structure 1 is connected to a board layer 1, and the board layer 1 is provided with a plurality of porous sound absorbing panels 31; The sound insulation support structure 2 also includes a support structure 2, the support structure 2 is connected to the suspension rod assembly 1, the support structure 2 is connected to a plate layer 2, and the plate layer 2 is provided with a plurality of sealing plates 32; The supporting structure 1 is located above the supporting structure 2, so that the porous sound absorbing plate 31 is located above the sealing plate 32, thereby forming the sound insulation structure 3.

[0018] Further, such as Figure 2 , 3 As shown, the hanger assembly 1 includes a hanger 11, the hanger 11 is connected to the top floor, the hanger 11 is connected to a shock absorbing structure 12, the shock absorbing structure 12 is connected to a hanger 2 13, the upper end of the hanger 2 13 is connected to the supporting structure 1, and the lower end of the hanger 2 13 is connected to the supporting structure 2.

[0019] Further, such as Figure 4As shown, the shock absorbing structure 12 includes a threaded sleeve 121, the lower end of the suspension rod 11 is provided with an external thread, and the threaded sleeve 121 is threadedly connected to the lower end of the suspension rod 11; The bottom of the threaded sleeve 121 is fixedly connected with a support plate 122, the upper surface of the support plate 122 is provided with a rubber block 123, and the rubber block 123 and the support plate 122 are integrally provided with a through hole 1 which passes through from top to bottom; The shock absorbing structure 12 further includes a connecting plate 124, and the connecting plate 124 is provided with a through hole 2 penetrating the upper and lower surfaces; The shock absorbing structure 12 further includes a screw 125, which passes through the through hole 1 and the through hole 2 from bottom to top. The upper end of the screw 125 is threadedly connected with at least two nuts 126, and the nuts 126 are squeezed and clamped to hold a disc spring 127; A third suspension rod 128 is provided in the middle of the lower surface of the connecting plate 124 , and an external thread is provided at the lower end of the third suspension rod 128 , and the lower end of the third suspension rod 128 is threadedly connected to the second suspension rod 13 .

[0020] Further, such as Figure 2 As shown, the second suspension rod 13 includes a body, the upper end of which is fixedly connected with a second threaded sleeve 131, and the second threaded sleeve 131 is threadedly connected with the third suspension rod 128; Four connecting parts 132 extending outwardly along the normal direction are evenly arranged on the outer side of the upper end of the threaded sleeve 131, and the connecting part 132 is connected to the supporting structure 1; The lower end of the suspension rod 13 is provided with an external thread and is threadedly connected with a connecting piece 14. Figure 5 , 6 As shown, the connecting member 14 includes a threaded sleeve 3 141 , and four connecting portions 2 142 extending outwardly along the normal direction thereof are evenly arranged on the outer side of the upper end of the threaded sleeve 3 141 , and the connecting portions 2 142 are connected to the supporting structure 2.

[0021] Further, such as Figure 7-9 As shown, the support structure 1 / 2 includes a support beam 21, and the support beam 21 includes a support beam web 211, and downward support beam flanges 212 are respectively connected to both sides of the support beam web 211, and an inwardly bent portion 213 is connected to the lower side of the support beam flange 212, and an outwardly slanting expansion portion 214 is connected to the lower side of the inwardly bent portion 213, and an outwardly extending flat portion 215 is connected to the lower side of the expansion portion 214; The web plate 211 of the support beam, the flange plate 212 of the support beam and the two ends of the inner bending portion 213 are clamped to the connection portion 1 132 or the connection portion 2 142, so that the support beam and the connection portion 1 132 / 2 142 form a support structure 1 / 2 having multiple rectangular frames; The flat extension portion 215 is connected to the porous sound absorbing plate 31 or the sealing plate 32 .

[0022] Furthermore, a tower-shaped sound-absorbing cotton 33 is provided on the upper surface of the sealing plate 32 .

[0023] Further, such as Figure 2 , 3 As shown, the lower end of the second suspension rod 13 is threadedly connected to the support structure 3, and the support structure 3 includes a suspension member 15, and the suspension member 15 includes a suspension member upper wing plate 151, a suspension member web plate 152, a suspension member lower wing plate 153 and a return plate 154 parallel to the suspension member web plate 152, and the suspension member upper wing plate 151 is provided with a threaded hole and is threadedly connected to the second suspension rod 13; The ceiling main beam 22 is sandwiched between the web plate 152 of the hanging member, the lower wing plate 153 of the hanging member and the return plate 154, and the ceiling secondary beam 23 is connected to the lower side of the ceiling main beam 22; A tension bolt is provided between the folded plate 154 and the web 152 of the hanging member.

[0024] Further, such as Fig.10 As shown, the ceiling main beam 22 includes a main beam upper wing plate 221, a main beam web plate 222 and a main beam lower wing plate 223, the main beam web plate 222 is closely attached to the return folding plate 154, and the main beam lower wing plate 223 is closely attached to the lower wing plate 153 of the hanging member; The ceiling sub-beam 23 includes a sub-beam web 231, the sub-beam web 231 is connected with an upward sub-beam wing 232, a folded edge 233 is provided inwardly on the upper side of the sub-beam wing, and the folded edge 233 is closely attached to the lower wing 223 of the main beam; The sub-beam web 231 is connected with the ceiling panel 34 .

[0025] Furthermore, the ceiling main beam 22 and the ceiling sub-beam 23 are connected with a clamping member 24, and the clamping member 24 includes a longitudinal portion 241, and the upper end of the longitudinal portion 241 is provided with a hooking portion 242 for hooking the wing plate 221 of the main beam, and the lower end of the longitudinal portion 241 is provided with a hanging portion 243 whose width is larger than the longitudinal portion 241, and the hanging portion 243 is hung with the folding edge 233; The centerline of the auxiliary beam web 231 protrudes upward, so that the hanging portion 243 and the folded edge 233 are clamped.

[0026] The construction method of the above-mentioned building sound insulation system comprises the following steps: Step 1: Set the boom 11; Step 2: Set up the shock-absorbing structure, specifically, firstly, thread the threaded sleeve 121 with the rubber block 123 and the support plate 122 to the lower end of the suspension rod 11, then align the through hole 2 of the connecting plate 124 with the through hole, then pass the screw rod 125 from bottom to top through the through hole 2 and the through hole 1, and then connect multiple nuts 126 to the upper end of the screw rod 125, and sandwich the multiple nuts 126 with disc springs 127, and tighten the nuts 126 above and below the disc springs 127 in opposite directions; Step 3: First, the second suspension rod 13 is threadedly connected to the lower end of the third suspension rod 128 by the second threaded sleeve 131, and then the connecting piece 14 is threadedly connected to the lower end of the second suspension rod 13 by the third threaded sleeve 141; Step 4: Adjust the angles of the connection part 132 and the connection part 2 142, and clamp the support beam 21 to form a rectangular frame of the support structure 1 / 2; Step 5: Connect the porous sound absorbing panel 31 to the flat extension portion 215 of the support beam 21 of the support structure 1 by self-tapping screws; Step 6: Connect the sealing plate 32 with the tower-shaped sound-absorbing cotton 33 to the flat extension portion 215 of the support beam 21 of the second support structure by self-tapping screws; Step 7: Install the hanging parts 15, the ceiling main beams 22, the ceiling sub-beams 23 and the ceiling panels 34.

[0027] Technical features not described in the present invention can be achieved through or by adopting existing technologies and will not be described in detail herein. Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention should also fall within the scope of protection of the present invention.

Claims

1. A building sound insulation system, characterized in that: It comprises a suspension rod assembly (1), wherein the suspension rod assembly (1) is connected to a sound insulation support structure (2), and the sound insulation support structure (2) is connected to a sound insulation structure (3); The sound insulation support structure (2) comprises a support structure 1, the support structure 1 is connected to the suspension rod assembly (1), the support structure 1 is connected to a board layer 1, and the board layer 1 is provided with a plurality of porous sound absorbing panels (31); The sound insulation support structure (2) further comprises a second support structure, wherein the second support structure is connected to the suspension rod assembly (1), the second support structure is connected to a second board layer, and the second board layer is provided with a plurality of sealing plates (32); The first supporting structure is located above the second supporting structure, so that the porous sound absorbing plate (31) is located above the sealing plate (32), thereby forming the sound insulation structure (3).

2. A building sound insulation system according to claim 1, characterized in that: The suspension rod assembly (1) comprises a suspension rod 1 (11), wherein the suspension rod 1 (11) is connected to a top floor slab, the suspension rod 1 (11) is connected to a shock absorbing structure (12), the shock absorbing structure (12) is connected to a suspension rod 3 (13), the upper end of the suspension rod 3 (13) is connected to the supporting structure 1, and the lower end of the suspension rod 3 (13) is connected to the supporting structure 2.

3. A building sound insulation system according to claim 2, characterized in that: The shock absorbing structure (12) comprises a threaded sleeve (121), the lower end of the suspension rod (11) is provided with an external thread, and the threaded sleeve (121) is threadedly connected to the lower end of the suspension rod (11); The bottom of the threaded sleeve (121) is fixedly connected to a support plate (122), the upper surface of the support plate (122) is provided with a rubber block (123), and the rubber block (123) and the support plate (122) are integrally provided with a through hole (1) that passes through from top to bottom; The shock absorbing structure (12) further comprises a connecting plate (124), wherein the connecting plate (124) is provided with a second through hole penetrating the upper and lower surfaces; The shock absorbing structure (12) further comprises a screw rod (125), the screw rod (125) passing through the first through hole and the second through hole from bottom to top, the upper end of the screw rod (125) being threadedly connected to at least two nuts (126), and a disc spring (127) being squeezed and clamped between the nuts (126); A third suspension rod (128) is provided in the middle of the lower surface of the connecting plate (124), and an external thread is provided at the lower end of the third suspension rod (128). The lower end of the third suspension rod (128) is threadedly connected to the third suspension rod (13).

4. A building sound insulation system according to claim 2, characterized in that: The third suspension rod (13) comprises a body, the upper end of which is fixedly connected to a second threaded sleeve (131), and the second threaded sleeve (131) is threadedly connected to the third suspension rod (128); The outer side of the upper end of the threaded sleeve 2 (131) is evenly provided with four connecting parts 1 (132) extending outward along the normal direction thereof, and the connecting parts 1 (132) are connected to the supporting structure 1; The lower end of the suspension rod three (13) is provided with an external thread and is threadedly connected to a connecting piece (14), the connecting piece (14) comprises a threaded sleeve three (141), and the outer side of the upper end of the threaded sleeve three (141) is evenly provided with four connecting parts two (142) extending outward along its normal direction, and the connecting parts two (142) are connected to the supporting structure two.

5. A building sound insulation system according to claim 4, characterized in that: The support structure one / two comprises a support beam (21), the support beam (21) comprises a support beam web (211), both sides of the support beam web (211) are respectively connected to downwardly directed support beam wing plates (212), the lower side of the support beam wing plate (212) is connected to an inwardly directed inner bending portion (213), the lower side of the inner bending portion (213) is connected to an outwardly directed flaring portion (214), and the lower side of the flaring portion (214) is connected to an outwardly directed flat extension portion (215); The web plate (211) of the support beam, the flange plate (212) of the support beam and the two ends of the inner bending portion (213) are clamped to the connection portion 1 (132) or the connection portion 2 (142), so that the support beam (21) and the connection portion 1 (132) / 2 form a support structure 1 / 2 having a plurality of rectangular frames; The flat extension portion (215) is connected to the porous sound absorbing plate (31) or the sealing plate (32).

6. A building sound insulation system according to claim 5, characterized in that: The upper surface of the sealing plate (32) is provided with tower-shaped sound-absorbing cotton (33).

7. A building sound insulation system according to claim 4, characterized in that: The lower end of the suspension rod three (13) is threadedly connected to the support structure three, the support structure three comprises a suspension member (15), the suspension member (15) comprises a suspension member upper wing plate (151), a suspension member web plate (152), a suspension member lower wing plate (153) and a folded plate (154) parallel to the suspension member web plate (152), the suspension member upper wing plate (151) is provided with a threaded hole and is threadedly connected to the suspension rod three (13); A ceiling main beam (22) is sandwiched between the web plate (152) of the hanging member, the lower wing plate (153) of the hanging member, and the return plate (154), and a ceiling secondary beam (23) is connected to the lower side of the ceiling main beam (22); A tension bolt is provided between the folded plate (154) and the web (152) of the hanging member.

8. A building sound insulation system according to claim 7, characterized in that: The ceiling main beam (22) comprises a main beam upper wing plate (221), a main beam web plate (222) and a main beam lower wing plate (223); the main beam web plate (222) is in close contact with the return fold plate (154), and the main beam lower wing plate (223) is in close contact with the suspension member lower wing plate (153); The ceiling sub-beam (23) comprises a sub-beam web (231), the sub-beam web (231) is connected to an upward sub-beam wing plate (232), a folded edge (233) is provided inwardly on the upper side of the sub-beam wing plate (232), and the folded edge (233) is closely attached to the main beam lower wing plate (223); The secondary beam web (231) is connected to a ceiling panel (34).

9. A building sound insulation system according to claim 8, characterized in that: The ceiling main beam (22) and the ceiling secondary beam (23) are connected by a clamping piece (24), the clamping piece (24) comprising a longitudinal portion (241), the upper end of the longitudinal portion (241) being provided with a hooking portion (242) for hooking the wing plate (221) on the main beam, the lower end of the longitudinal portion (241) being provided with a hanging portion (243) having a wider portion than the longitudinal portion (241), the hanging portion (243) being hung on the folded edge (233); The midline portion of the secondary beam web (231) protrudes upwards, so that the hanging portion (243) and the folded edge (233) are clamped.

10. The construction method of the building sound insulation system according to the above claims is characterized in that: The following steps are involved: Step 1: Set up the suspension rod 1 (11); Step 2: Setting a shock-absorbing structure, specifically, firstly threadingly connecting the threaded sleeve 1 (121) with the rubber block (123) and the support plate (122) to the lower end of the suspension rod 1 (11), then aligning the through hole 2 of the connecting plate (124) with the through hole, then passing the screw rod (125) from the bottom to the top through the through hole 2 and the through hole 1, and then connecting a plurality of nuts (126) to the upper end of the screw rod (125), sandwiching a disc spring (127) between the plurality of nuts (126), and tightening the nuts (126) above and below the disc spring (127) in opposite directions; Step 3: First, thread the third suspension rod (13) to the lower end of the third suspension rod (128) by means of the second threaded sleeve (131), and then thread the connecting piece (14) to the lower end of the third suspension rod (13) by means of the third threaded sleeve (141); Step 4: Adjust the angles of the connection part 1 (132) and the connection part 2 (142), and clamp the support beam (21) to form a rectangular frame of the support structure 1 / 2; Step 5: Connect the porous sound-absorbing panel (31) to the flat extension portion (215) of the support beam (21) of the first support structure by using self-tapping screws; Step 6: Connect the sealing plate (32) with the tower-shaped sound-absorbing cotton (33) to the flat extension part (215) of the supporting beam (21) of the second supporting structure by self-tapping screws; Step 7: Install the hanging parts (15), the main ceiling beams (22), the secondary ceiling beams (23) and the ceiling panels (34).

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