Fabricated noise reduction floor firm in connection

Abstract

The invention discloses a firmly-connected assembly type noise reduction floor, and belongs to the technical field of assembly floors, the firmly-connected assembly type noise reduction floor comprises a vibration reduction panel and a sound absorption base, the vibration reduction panel is mounted at the top of the sound absorption base, the sound absorption base comprises a sound insulation supporting box, and a plurality of first sound absorbers and a plurality of second sound absorbers are arranged in the sound insulation supporting box; the first sound absorbers and the second sound absorbers are evenly distributed in an array mode, sound conducted from bottom to top is absorbed through the first sound absorbers, sound conducted from top to bottom is absorbed through the second sound absorbers, and the vibration reduction panel comprises a first vibration reduction plate. A second vibration reduction plate, a third vibration reduction plate, a fourth vibration reduction plate and a sound insulation supporting plate are sequentially arranged on the lower portion of the first vibration reduction plate from top to bottom, the sound insulation supporting plate and a sound insulation supporting box are mutually clamped and fixed, various scratching and scraping damages in the external environment are borne, various liquid pollutants and solid pollutants are blocked, overall damage and pollution are avoided, and the sound insulation effect is good. And a user can conveniently take care.

Description

Technical Field

[0001] This invention relates to the field of prefabricated flooring technology, specifically a securely connected prefabricated sound-absorbing floor. Background Technology

[0002] Prefabricated flooring is assembled from panels, stringers, adjustable supports, etc. of various specifications, models, and materials.

[0003] Application document CN118498645A discloses a type of wood flooring, comprising multiple horizontally spliced ​​wood flooring modules. Each wood flooring module includes a substrate and an assembly board that are bonded and assembled together. The surface of the substrate bonded to the assembly board has multiple assembly holes, and the surface of the assembly board bonded to the substrate has multiple flexible assembly units corresponding to the assembly holes. The assembly holes extend along a first direction and form locking grooves that are recessed in a second direction. The flexible assembly units extend along the first direction and form locking portions that are protruding in the second direction, which are suitable for the flexible assembly units to be compressed and bent when moving in the assembly holes along the first direction, and to reshape themselves when they are engaged with the locking portions and locking grooves. An elastic element is provided in the assembly holes for applying a locking force along the second direction to the locking portions, so that they are engaged with the locking grooves.

[0004] Based on the aforementioned patents and existing technologies, it can be concluded that the aforementioned patents lack sound-absorbing structures with good sound absorption capabilities, which easily leads to poor sound insulation effects and makes it easy for the generated noise to be unable to be reduced. Furthermore, the aforementioned patents are prone to generating noise during damage such as impacts, shocks, and scratches, and the noise generated has a poor absorption effect. Summary of the Invention

[0005] The purpose of this invention is to address the aforementioned problems and shortcomings by providing a securely connected prefabricated sound-absorbing floor, thereby improving overall work efficiency.

[0006] This invention solves at least one of the following technical problems: (1) The above-mentioned patent lacks a sound-absorbing structure with good sound absorption capacity, which easily leads to poor sound insulation effect and makes it easy to cause the generated noise to not be reduced; (2) The above-mentioned patents are prone to generating noise during the process of being damaged by impact, shock, scratch, etc., and the noise generated has poor absorption effect.

[0007] The objective of this invention can be achieved through the following technical solution: a firmly connected prefabricated sound-absorbing floor, comprising a vibration damping panel and a sound-absorbing base. The vibration damping panel is installed on top of the sound-absorbing base, which includes a sound insulation support box. The sound insulation support box contains a plurality of first sound absorbers and a plurality of second sound absorbers, which are evenly distributed in an array. The first sound absorbers absorb sound transmitted from bottom to top, and the second sound absorbers absorb sound transmitted from top to bottom. The vibration damping panel includes a first vibration damping plate, and the lower part of the first vibration damping plate is provided with a second vibration damping plate, a third vibration damping plate, a fourth vibration damping plate, and a sound insulation support plate in sequence from top to bottom. The sound insulation support plate and the sound insulation support box are interlocked and fixed together.

[0008] Preferably, both the first and second sound absorbers include a microporous plate with a plurality of sound-absorbing micropores evenly distributed in a rectangular array on the microporous plate. A plurality of sound-absorbing square tubes arranged in a coaxial nested arrangement are installed on the side of the microporous plate near the sound source, and the top of each sound-absorbing square tube is fixedly connected to the microporous plate.

[0009] Preferably, the length of each sound-absorbing square tube increases sequentially from the inside to the outside, and the cavity formed by the gap between adjacent sound-absorbing square tubes is connected to the top of the microporous plate through sound-absorbing micropores.

[0010] Preferably, the cavity formed by the gap between adjacent sound-absorbing tubes is filled with a first filler, a second filler, and a third filler in sequence from the side closer to the microporous plate to the side farther away.

[0011] Preferably, the bottom of the first damping plate is fixedly connected with several connecting columns evenly distributed in a rectangular array. The middle of the second damping plate, the third damping plate, the fourth damping plate and the sound insulation support plate are all provided with through grooves, and the connecting columns are correspondingly inserted into the through grooves, and the connecting columns and the through grooves are interference fit.

[0012] Preferably, a limiting protrusion is fixedly sleeved on the lower outer periphery of the connecting column, and a number of limiting rubber rings are provided between the limiting protrusion and the end face of the through groove. The limiting rubber rings are interference-fitted and filled between the limiting protrusion and the end face of the through groove.

[0013] Preferably, a connecting square ring is fixedly sleeved on the outer periphery of the second damping plate, and a frame is spliced ​​on the outer periphery of the first damping plate.

[0014] Preferably, a plurality of first inserts are fixedly connected to the contact surfaces of the frame and the connecting square ring in an alternating manner. Second inserts are fixedly connected to the inner sidewalls of the frame near the outer peripheral sidewall of the first damping plate and the outer peripheral sidewall of the connecting square ring. The outer peripheral sidewall of the first damping plate and the outer peripheral sidewall of the connecting square ring are provided with grooves for engaging and fixing with the second inserts.

[0015] Preferably, the sound insulation support plate and the sound insulation support box are fixed by connecting clips. The abutting surfaces of the sound insulation support plate and the sound insulation support box are respectively provided with positioning slots that match the connecting clips. The upper and lower outer peripheries of the connecting clips are fitted with connecting rings. The inner periphery of the positioning slot is provided with a groove corresponding to the connecting ring.

[0016] Preferably, adjacent sound-absorbing bases are fixed by connecting tenons, and the top and bottom of the four sides of the sound-absorbing base are provided with grooves for interference fit of the connecting tenons.

[0017] The beneficial effects of this invention are: (1) When working, the sound field is separated by the sound-absorbing base. The sound transmitted downward from above the sound-absorbing base and the sound transmitted upward from below are fully absorbed. Through the composite assembly of the first damping plate, the second damping plate, the third damping plate and the fourth damping plate, the functions of each part are superimposed. It can withstand various scratches and abrasions in the external environment, block various liquid and solid pollutants, avoid overall damage and pollution, and make it easy for users to maintain. It can withstand heavy pressure and impact for a long time and remain undamaged and dented. It absorbs the vibration generated by impacts, knocks and other blows, reduces the loudness and sound energy of the generated sound, and widens the frequency range of overall sound energy absorption. (2) During operation, several sound-absorbing square tubes arranged in a coaxial nested manner form cavities of different depths and diameters. Through the sound-absorbing micropores of the microporous plate, the first filler, the second filler and the third filler, the sound absorption combination structure further increases the number of absorption peaks and obtains the best absorption efficiency for more frequency bands. This further increases the overall efficiency of sound absorption for various guide sound-absorbing square tubes, obtains better sound insulation effect, fully absorbs the sound of various frequencies generated in the process of life and production, and is supported by the mutual combination of the rigidity of each sound-absorbing square tube, the first filler, the second filler, the third filler and the microporous plate, thereby obtaining the overall support rigidity and supporting the vibration damping panel. (3) During operation, the flooring of various shapes and sizes is adapted by splicing and combining. Several sound-absorbing bases are quickly and stably connected and engaged by several connecting tenons and corresponding interference fit slots, simplifying the assembly steps and difficulty, and reducing assembly time. Through the interference fit of the connecting column and the through groove, as well as the interference fit of the limiting rubber ring and the filling of the limiting rubber ring, the first damping plate, the second damping plate, the third damping plate, the fourth damping plate and the sound insulation support plate can be tightly connected without glue and do not slide against each other, thereby avoiding the sound reflection phenomenon caused by the glue coating, and transmitting the received sound to the sound-absorbing base or absorbing it itself as much as possible. Attached Figure Description

[0018] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0019] Figure 1 This is a front view of the overall structure of the present invention after the parts are spliced ​​together; Figure 2 This is a front view of the overall structure of the present invention; Figure 3 for Figure 2 Front view of section AA; Figure 4 for Figure 2 Front view of section BB; Figure 5 This is a cross-sectional view of the internal structure of the first sound absorber of the present invention; Figure 6 for Figure 3 Enlarged view of region C in the middle; Figure 7 for Figure 4 Enlarged schematic diagram of region D in the middle; In the diagram: 101, vibration damping panel; 102, sound-absorbing base; 201, first vibration damping plate; 202, second vibration damping plate; 203, third vibration damping plate; 204, fourth vibration damping plate; 205, sound insulation support plate; 301, sound insulation support box; 302, first sound absorber; 303, second sound absorber; 304, connecting tenon; 401, micro-perforated plate; 402, sound-absorbing square tube; 403, first filler; 404, second filler; 405, third filler; 406, sound-absorbing micropores; 501, connecting post; 502, through groove; 503, limiting protrusion ring; 504, limiting rubber ring; 505, connecting square ring; 506, frame; 507, first insert strip; 508, second insert strip; 509, connecting post; 510, positioning slot; 511, connecting insert ring. Detailed Implementation

[0020] The specific embodiments of the present invention will be described in detail below, but it should be understood that the scope of protection of the present invention is not limited to the specific embodiments.

[0021] Please see Figure 1-7As shown: A securely connected prefabricated sound-absorbing floor includes a vibration damping panel 101 and a sound-absorbing base 102. The vibration damping panel 101 is mounted on top of the sound-absorbing base 102. The sound-absorbing base 102 includes a sound insulation support box 301, which contains a plurality of first sound absorbers 302 and a plurality of second sound absorbers 303. The first sound absorbers 302 and the second sound absorbers 303 are evenly distributed in an array. The first sound absorbers 302 absorb sound transmitted from bottom to top, and the second sound absorbers 303 absorb sound transmitted from bottom to top. 03 Absorbs sound transmitted from top to bottom. The vibration damping panel 101 includes a first vibration damping plate 201. The lower part of the first vibration damping plate 201 is provided with a second vibration damping plate 202, a third vibration damping plate 203, a fourth vibration damping plate 204 and a sound insulation support plate 205 from top to bottom. The sound insulation support plate 205 and the sound insulation support box 301 are interlocked and fixed. Adjacent sound-absorbing bases 102 are interlocked and fixed by connecting tenons 304. The top and bottom of the four sides of the sound-absorbing base 102 are provided with slots for interference fit of the connecting tenons 304. In this embodiment, sound insulation is achieved through the sound-absorbing base 102, which serves as the boundary for sound field separation. It effectively absorbs sound transmitted downwards from above and upwards from below. Through splicing and assembly, it adapts to flooring of various shapes and sizes. During assembly, several connecting tenons 304 and corresponding interference-fit slots quickly and stably connect and engage several sound-absorbing bases 102, simplifying assembly steps and reducing assembly time. The composite assembly of the first damping plate 201, second damping plate 202, third damping plate 203, and fourth damping plate 204 combines the functions of each component. The first damping plate 201 bears the load... It is resistant to various scratches and abrasions from the external environment, and blocks various liquid and solid contaminants to prevent overall damage and pollution. It is also easy for users to maintain. The second damping plate 202 absorbs the vibrations generated by the first damping plate 201 when it is subjected to impacts, knocks, etc., thereby reducing the loudness and sound energy of the generated sound. The third damping plate 203 and the fourth damping plate 204 have sound energy absorption peaks in different frequency ranges, which further absorb the vibrations and sound energy of the transmitted sound, thereby widening the frequency range of sound energy absorption of the damping panel 101 as a whole, and reducing and absorbing the sound generated by the first damping plate 201 as much as possible, thus working with the sound-absorbing base 102 to achieve noise reduction.

[0022] In this embodiment, the first damping plate 201 is made of high-density PC material, the second damping plate 202 is made of polyurethane-based colloid material, the third damping plate 203 is made of needle-punched nonwoven fabric material, and the fourth damping plate 204 is made of felt fabric material. Other types of materials can also be combined. By using composite materials, a wider absorption frequency range can be obtained, while maintaining stable support and impact resistance. It can withstand heavy pressure and impact for a long time without damage or dents.

[0023] Both the first sound absorber 302 and the second sound absorber 303 include a microporous plate 401. The microporous plate 401 has a plurality of sound-absorbing micropores 406 evenly distributed in a rectangular array. A plurality of sound-absorbing square tubes 402 arranged in a coaxial nested manner are installed on the side of the microporous plate 401 near the sound source. The top of each sound-absorbing square tube 402 is fixedly connected to the microporous plate 401. The length of each sound-absorbing square tube 402 increases sequentially from the inside to the outside. The cavity formed by the gap between adjacent sound-absorbing square tubes 402 is connected to the top of the microporous plate 401 through the sound-absorbing micropores 406. The cavity formed by the gap between adjacent sound-absorbing square tubes 402 is filled sequentially from the side closer to the microporous plate 401 to the side farther away by a first filler 403, a second filler 404, and a third filler 405. In this embodiment, several coaxially nested sound-absorbing tubes 402 form cavities of different depths and diameters, thereby obtaining several absorption peaks for different frequency bands, i.e., optimal absorption efficiency. This allows for the full absorption of various frequencies of sound generated during daily life and production, achieving uniform and efficient sound absorption. The structure of the sound-absorbing combination of the micro-pores 406 of the microporous plate 401, the first filler 403, the second filler 404, and the third filler 405 further increases the number of absorption peaks, achieving optimal absorption efficiency for more frequency bands. This further increases the overall efficiency of sound absorption by various guiding sound-absorbing tubes 402, resulting in better sound insulation. The rigidity of each sound-absorbing tube 402, the first filler 403, the second filler 404, the third filler 405, and the microporous plate 401 provides mutual support, thereby achieving overall support rigidity and supporting the vibration damping panel 101.

[0024] In this embodiment, the first filler 403 is a sponge, the second filler 404 is a porous foam with a pore size of no more than two millimeters and a pore density of at least 10,000 per cubic centimeter, and the third filler 405 is polyurethane foam. By forming a pore structure of different densities through various fillers, a variety of absorption peak types and absorption efficiency peaks are obtained, so as to maximize the overall sound energy absorption efficiency and obtain the best sound absorption effect.

[0025] The bottom of the first damping plate 201 is fixedly connected with several connecting columns 501 evenly distributed in a rectangular array. The middle of the second damping plate 202, the third damping plate 203, the fourth damping plate 204 and the sound insulation support plate 205 are all provided with through grooves 502. The connecting columns 501 are correspondingly inserted into the through grooves 502, and the connecting columns 501 and the through grooves 502 are interference fit. The lower outer periphery of the connecting column 501 is fixedly sleeved with a limiting protrusion ring 503. Several limiting rubber rings 504 are provided between the limiting protrusion ring 503 and the end face of the through groove 502. The limiting rubber rings 504 are interference fit and fill the space between the limiting protrusion ring 503 and the end face of the through groove 502. In this embodiment, through the interference fit between the connecting column 501 and the through groove 502, the interference fit of the limiting rubber ring 504, and the filling of the limiting rubber ring 504, the first damping plate 201, the second damping plate 202, the third damping plate 203, the fourth damping plate 204, and the sound insulation support plate 205 can be tightly connected without glue and do not slide against each other, thereby avoiding the sound reflection phenomenon caused by the glue coating, and transmitting the received sound to the sound-absorbing base 102 or absorbing it itself as much as possible.

[0026] A connecting square ring 505 is fixedly sleeved on the outer periphery of the second damping plate 202, and a frame 506 is spliced ​​and sleeved on the outer periphery of the first damping plate 201. Several staggered first inserts 507 are fixedly connected to the contact surfaces of the frame 506 and the connecting square ring 505. Second inserts 508 are fixedly connected to the inner sidewalls of the frame 506 near the outer periphery of the first damping plate 201 and the outer periphery of the connecting square ring 505. 05 The outer periphery sidewalls are all provided with grooves for engaging and fixing with the second insert 508. The sound insulation support plate 205 and the sound insulation support box 301 are engaged and fixed by the connecting pin 509. The abutting surfaces of the sound insulation support plate 205 and the sound insulation support box 301 are respectively provided with positioning slots 510 that engage with the connecting pin 509. The upper and lower outer periphery of the connecting pin 509 are both fitted with connecting rings 511. The inner periphery sidewalls of the positioning slots 510 are provided with grooves that engage with the connecting rings 511. In this embodiment, the surrounding sides of the first damping plate 201, the second damping plate 202, the third damping plate 203, and the fourth damping plate 204 are covered and protected by the frame 506. Adjacent frame 506s are tightly and interference-fitted to avoid sliding friction and noise. A gap is maintained between the bottom surface of the frame 506 and the sound insulation support plate 205, creating a cavity when assembled to absorb the transmitted sound. This is achieved through the interlocking first inserts 507 and the nested second inserts 507. 8. This design ensures that the frame 506 is stably fitted onto the vibration-damping panel 101, while avoiding sound reflection from the adhesive coating. The simple structure of the connecting posts 509 and connecting rings 511 simplifies the splicing process, reduces assembly time, and allows for quick replacement, simplifying maintenance. Furthermore, even after cutting to fit different wall and boundary contours, the cut vibration-damping panel 101 can still be stably spliced ​​using the remaining connecting posts 509 and positioning slots 510, thus adapting to different wall and floor contours and improving overall sound insulation and noise reduction.

[0027] In summary, the sound field is divided with the sound-absorbing base 102 as the boundary, and the sound transmitted downward from above the sound-absorbing base 102 and the sound transmitted upward from below are fully absorbed. Through the composite assembly of the first damping plate 201, the second damping plate 202, the third damping plate 203 and the fourth damping plate 204, the functions of each part are superimposed. It can withstand various scratches and abrasions in the external environment, block various liquid and solid pollutants, avoid overall damage and pollution, and is easy for users to clean. It can withstand heavy pressure and impact for a long time and remain undamaged and dent-free. It absorbs the vibration generated by impacts, knocks and other blows, reduces the loudness and sound energy of the generated sound, and widens the frequency range of overall sound energy absorption. Several coaxially nested sound-absorbing tubes 402 form cavities of different depths and diameters. Through the sound-absorbing combination structure of the sound-absorbing micropores 406 of the microporous plate 401, the first filler 403, the second filler 404, and the third filler 405, the number of absorption peaks is further increased, achieving optimal absorption efficiency for more frequency bands. This further increases the overall efficiency of sound absorption for various directional sound-absorbing tubes 402, resulting in better sound insulation. It fully absorbs various frequencies of sound generated during daily life and production. The rigidity of each sound-absorbing tube 402, the first filler 403, the second filler 404, the third filler 405, and the microporous plate 401 are combined and supported to achieve overall support rigidity, thus supporting the vibration damping panel 101. By splicing and combining, various shapes and sizes of flooring can be adapted. Several connecting tenons 304 and corresponding interference-fit grooves can quickly and stably connect and engage several sound-absorbing bases 102, simplifying assembly steps and reducing difficulty, and reducing assembly time. Through the interference fit between the connecting column 501 and the through groove 502, as well as the interference fit and filling of the limiting rubber ring 504, the first damping plate 201, the second damping plate 202, the third damping plate 203, the fourth damping plate 204 and the sound insulation support plate 205 can be tightly connected without glue and do not slip between each other, thereby avoiding sound reflection caused by glue coating and transmitting the received sound to the sound-absorbing base 102 or absorbing it itself as much as possible.

[0028] The above-disclosed embodiments are merely a few specific examples of the present invention. However, the embodiments of the present invention are not limited thereto, and any variations that can be conceived by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A securely connected prefabricated sound-absorbing floor, characterized in that, The system includes a vibration damping panel (101) and a sound-absorbing base (102). The vibration damping panel (101) is mounted on top of the sound-absorbing base (102). The sound-absorbing base (102) includes a sound insulation support box (301). The sound insulation support box (301) contains a plurality of first sound absorbers (302) and a plurality of second sound absorbers (303). The first sound absorbers (302) and the second sound absorbers (303) are evenly distributed in an array. Through the first sound absorbers ( 302) Absorbs sound transmitted from bottom to top, and absorbs sound transmitted from top to bottom through the second sound absorber (303). The vibration damping panel (101) includes a first vibration damping plate (201). The lower part of the first vibration damping plate (201) is provided with a second vibration damping plate (202), a third vibration damping plate (203), a fourth vibration damping plate (204) and a sound insulation support plate (205) from top to bottom. The sound insulation support plate (205) and the sound insulation support box (301) are interlocked and fixed.

2. The assembled sound-absorbing floor with a firm connection according to claim 1, characterized in that, The first sound absorber (302) and the second sound absorber (303) both include a microporous plate (401). The microporous plate (401) has a number of sound-absorbing micropores (406) evenly distributed in a rectangular array. A number of sound-absorbing square tubes (402) arranged in a coaxial nested pattern are installed on the side of the microporous plate (401) near the sound source. The top of each sound-absorbing square tube (402) is fixedly connected to the microporous plate (401).

3. The assembled sound-absorbing floor with a firm connection according to claim 2, characterized in that, The length of each of the sound-absorbing square tubes (402) increases sequentially from the inside to the outside, and the cavity formed by the gap between adjacent sound-absorbing square tubes (402) is connected to the top of the microporous plate (401) through the sound-absorbing micropores (406).

4. The assembled sound-absorbing floor with a firm connection according to claim 3, characterized in that, The cavity formed by the gap between the adjacent sound-absorbing square tubes (402) is filled with a first filler (403), a second filler (404) and a third filler (405) in sequence from the side closer to the microporous plate (401) to the side farther away.

5. A securely connected prefabricated sound-absorbing floor according to claim 1, characterized in that, The bottom of the first damping plate (201) is fixedly connected with a number of connecting columns (501) evenly distributed in a rectangular array. The middle of the second damping plate (202), the third damping plate (203), the fourth damping plate (204) and the sound insulation support plate (205) are all provided with through grooves (502). The connecting columns (501) are correspondingly inserted into the through grooves (502), and the connecting columns (501) and the through grooves (502) are interference fit.

6. A securely connected prefabricated sound-absorbing floor according to claim 5, characterized in that, The lower outer periphery of the connecting column (501) is fixedly sleeved with a limiting protrusion ring (503). A plurality of limiting rubber rings (504) are provided between the limiting protrusion ring (503) and the end face of the through groove (502). The limiting rubber rings (504) are interference-fitted and filled between the end face of the limiting protrusion ring (503) and the through groove (502).

7. A securely connected prefabricated sound-absorbing floor according to claim 1, characterized in that, The outer periphery of the second damping plate (202) is fixedly fitted with a connecting square ring (505), and the outer periphery of the first damping plate (201) is spliced ​​with a frame (506).

8. A securely connected prefabricated sound-absorbing floor according to claim 7, characterized in that, On the contact surfaces where the frame (506) and the connecting square ring (505) abut, a plurality of first inserts (507) are fixedly connected in an alternating manner. On the inner sidewalls of the frame (506) near the outer peripheral sidewall of the first damping plate (201) and the outer peripheral sidewall of the connecting square ring (505), a second insert (508) is fixedly connected. The outer peripheral sidewall of the first damping plate (201) and the outer peripheral sidewall of the connecting square ring (505) are both provided with grooves for engaging and fixing with the second inserts (508).

9. A securely connected prefabricated sound-absorbing floor according to claim 1, characterized in that, The sound insulation support plate (205) and the sound insulation support box (301) are fixed by connecting pins (509). The contact surfaces of the sound insulation support plate (205) and the sound insulation support box (301) are respectively provided with positioning slots (510) that cooperate with the connecting pins (509). The upper and lower outer peripheries of the connecting pins (509) are fitted with connecting rings (511). The inner periphery of the positioning slots (510) is provided with grooves that correspond to the connecting rings (511).

10. A securely connected prefabricated sound-absorbing floor according to claim 1, characterized in that, The adjacent sound-absorbing bases (102) are fixed by connecting tenons (304). The top and bottom of the four sides of the sound-absorbing bases (102) are provided with slots that fit the connecting tenons (304) for interference fit.

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