Floor Impact Sound Insulation Structure for Reduction of Interfloor Noise

Abstract

This invention relates to a floor impact sound blocking structure for blocking floor impact sound from being transmitted to a lower floor, wherein a base layer structure is formed by combining a stopper-type support member or a mat support panel equipped with the same with a breathable mat, and a filter layer, a reinforcing layer, and a finishing mortar layer are sequentially provided on the upper side thereof, wherein the stopper-type support member is equipped with a support body and an elastic cap, and the elastic cap is compressed stepwise by a load transmitted through the support body to relieve the load and simultaneously limit the descent of the support body at a certain height, thereby improving the floor impact sound blocking efficiency and preventing cracks from occurring or local sinking in the finishing mortar layer due to large local deformation of the breathable mat.

Description

Technology Field

[0001] This invention relates to a floor impact sound blocking structure for preventing inter-floor noise, and more specifically, to a structure for preventing inter-floor noise in which a breathable mat is provided on the upper surface of a slab of a building structure, and the breathable mat is provided with a stopper-type support member or a mat support panel having the same, wherein the stopper-type support member includes a support body and an elastic cap, wherein the elastic cap is provided with a cylindrical body part that is press-fitted to the support leg of the support body and is preferentially compressed by the load transmitted through the support body to relieve the load, and a stopper part that is integrally formed on the inner lower side of the cylindrical body part to relieve the remaining load in stages and limit the excessive descent of the support body, thereby providing a floor impact sound blocking structure for preventing inter-floor noise more effectively. Background Technology

[0002] Generally, inter-floor noise refers to noise generated when loads resulting from the use of equipment or impacts caused by walking in multi-story residential buildings such as apartments are transmitted to lower-floor units through concrete slabs, and such inter-floor noise is causing many social problems.

[0003] Accordingly, the Housing Act, enacted to create a pleasant and livable residential environment, stipulates structural standards for floor impact sound insulation between floors to prevent noise. The stipulated "floor impact sound insulation structure" refers to a floor structure that has been recognized after verifying the performance of the floor impact sound insulation structure. The performance of the floor impact sound insulation structure refers to a floor structure that has been recognized after verifying that the heavy impact sound (floor impact sound caused by heavy and soft impacts) is 50 dB or less and the light impact sound (floor impact sound caused by relatively light and hard impacts) is 58 dB or less.

[0004] As illustrated in FIG. 1a, conventionally, a floor structure in which a cushioning material (1a), lightweight foamed concrete (1b), finishing mortar (1c), and floor finishing material (1d) are sequentially stacked and constructed on a slab (SB) of a multi-story building has been widely used. However, since the lightweight foamed concrete (1b) and finishing mortar (1c) must be poured and cured separately, the construction is complex and requires a large amount of manpower and time, which not only leads to an increase in the selling price but also has limitations in that the cushioning material (1a) and lightweight foamed concrete (1b) must be constructed to a thickness greater than a certain level to ensure stable noise blocking and thermal insulation, thereby reducing the space utilization within the unit. Furthermore, although the cushioning material (1a) is mostly made of EVA or EPS, there was a problem in that even if the impact in the vertical direction is partially absorbed, the vibration transmitted in the horizontal direction is still transmitted to the lower unit through the side wall.

[0005] Meanwhile, another conventional floor structure is formed by sequentially stacking a coil mat (2a) and a cushioning material (2b) on top of a slab to form a cushioning layer, as shown in FIG. 1b, and sequentially stacking a finishing mortar layer (2c) and a floor finishing layer (2d) on top of the cushioning layer. Although this floor structure is designed to reduce inter-floor noise using the coil mat (2a) and the cushioning material (2b), the coil mat (2a) and the cushioning material (2b) are easily deformed locally due to impact or load, resulting in the problem of partial cracks, deformation, and sinkholes occurring in the finishing mortar layer (2c).

[0006] Considering these problems, Korean Registered Patent No. 10-2722194 (registered on October 22, 2024, hereinafter referred to as the 'prior art document') has been proposed as a prior art document regarding an improved inter-floor impact sound blocking structure that effectively blocks inter-floor noise while preventing cracks and local deformation. As shown in FIG. 1c, the inter-floor impact sound blocking structure according to the prior art document is configured such that a coil mat (3a), a sound insulation sheet (3b), a cushioning material (3c), a finishing mortar layer (3d), and a floor finishing material (3e) are sequentially stacked on top of a slab (SB) to form a floor structure.

[0007] The floor impact sound insulation structure of the prior art document is provided with a plurality of support dampers (3f) on the coil mat (3a), and the plurality of support dampers (3f) sufficiently resist the load, thereby preventing cracks and local deformation occurring in the finishing mortar layer (3d) and aiming to extend the lifespan.

[0008] However, the floor impact sound blocking structure of the prior art literature does not have a separate structure to limit the compressive deformation of the support damper (3f), so when a large load is transmitted, the support damper (3f) is excessively compressive deformed, and thus cracks and local deformation may still occur in the finishing mortar layer (3d), and there is a limitation in that floor impact sound cannot be completely blocked. Prior art literature

[0009] Korean Registered Patent No. 10-2722194 (Registered on Oct. 22, 2024) The problem to be solved

[0010] This invention was devised to solve the above-mentioned problems, and the purpose of this invention is to provide a floor impact sound blocking structure formed based on a breathable mat on the upper part of a slab of a building structure and a plurality of stopper-type support members installed on the breathable mat to support the breathable mat, or a mat support panel equipped with such members, wherein the stopper-type support members relieve the load in stages and prevent excessive compression to prevent inter-floor noise.

[0011] Another objective of this invention is to provide a floor impact sound blocking structure for preventing inter-floor noise that can smoothly disperse surrounding air when a stopper-type support member is compressed by a load. means of solving the problem

[0012] A floor impact sound blocking structure for preventing inter-floor noise according to one embodiment of the present invention, which performs the task of achieving the above-mentioned purpose and eliminating conventional problems, comprises an inter-floor impact sound blocking structure (A) for preventing noise provided on the upper part of a concrete slab (SB), which is a base floor structure of a building structure, wherein the inter-floor impact sound blocking structure (A) is provided with a breathable mat (10) on the upper part of the concrete slab (SB), and a plurality of through holes (11) are provided at regular intervals in the breathable mat (10), and a stopper-type support member (20) is inserted into the through holes (11) of the breathable mat (10), wherein a cylindrical elastic cap (220) is forcibly fitted to the lower part of the support body (210) of the stopper-type support member (20), and the support body (210) has a support leg (211) in the shape of a truncated cone that is wider at the top and narrower at the bottom, and a seating end (212) that is seated on the upper surface of the breathable mat (10) is integrally formed on the upper part of the support leg (211). The elastic cap (220) is provided with a stopper portion (222) formed protruding upward on the inner side of the bottom surface of the cylindrical main body portion (221), and is characterized in that the cylindrical main body portion (221) of the elastic cap (220) is fitted and coupled from the bottom to the support leg (211) of the support main body (210).

[0013] Meanwhile, a floor impact sound blocking structure for preventing inter-floor noise according to another embodiment of the present invention is a floor impact sound blocking structure (A) for preventing inter-floor noise provided on the upper surface of a concrete slab (SB), which is a base floor structure of a building structure, wherein the inter-floor impact sound blocking structure (A) is provided with a breathable mat (10) on the upper surface of the concrete slab (SB), and a plurality of mat support panels (MP) are provided in abutment to the entire upper surface of the breathable mat (10), and the mat support panels (MP) are formed such that a plurality of stopper-type support members (20) protrude from the lower surface of a square grid-type frame (70), wherein a cylindrical elastic cap (220) is forcibly fitted to the lower part of the support body (210) of the stopper-type support member (20), and the support body (210) is provided with a support leg (211) in the shape of a truncated cone that is wider at the top and narrower at the bottom, and a seating portion (212) formed integrally with the grid-type frame is provided integrally on the upper end of the support leg (211). The above elastic cap (220) is characterized by having a stopper part (222) formed protruding upward on the inner side of the bottom surface of the cylindrical main body part (221), so that the cylindrical main body part (221) of the elastic cap (220) is fitted and coupled from the bottom to the support leg (211) of the support main body (210).

[0014] Additionally, a central protrusion (222a) may be provided at the center of the stopper part (222) to protrude upward to form a first gap (G1) from the support leg (211), and a peripheral protrusion (222b) may be provided around the central protrusion (222a) to protrude upward to form a second gap (G2) larger than the first gap (G1).

[0015] Additionally, a hemispherical insertion groove (215) is provided concavely upward on the bottom surface of the support leg (211) of the support body (210), and a hemispherical central protrusion (222a) is provided convexly upward on the center of the bottom surface of the elastic cap (220), so that the central protrusion (222a) provided on the bottom surface of the elastic cap (220) corresponds to the insertion groove (215) provided on the bottom surface of the support leg (211).

[0016] Additionally, the bottom surface of the stopper part (222) of the elastic cap (220) is provided with a pumping groove (224) that pumps air from the bottom during the process in which the stopper part (222) is pressed and compressed by the support leg (211) of the support body (210), and a plurality of dispersion grooves (225) that extend radially from the pumping groove (224) and disperse the pumped air to the surroundings are provided on the bottom surface of the stopper part (222), and a plurality of communication holes (226) connected to the dispersion grooves (225) are formed penetrating the stopper part (222).

[0017] In addition, the outer surface of the support leg (211) of the support body (210) is characterized by having a plurality of inlet holes (214) formed so that air flowing between the support leg (211) and the elastic cap (220) through the communication hole (226) of the elastic cap (220) flows into the interior of the support leg (211).

[0018] Additionally, as shown in FIG. 3, the above-mentioned mounting member (212) is integrally provided with an inner ring (212a) having an expanded diameter at the top of the support leg (211), and an outer ring (212b) is provided spaced apart from the inner ring (212a). The inner ring (212a) and the outer ring (212b) are connected by a plurality of connecting ribs (212c) to form the structure, and a plurality of air outlet grooves (212d) may be formed radially in the inner ring (212a).

[0019] In addition, as shown in FIG. 14, the grid-shaped frame (70) is formed by a plurality of horizontal members (71) and a plurality of vertical members (72) intersecting each other, and reinforcing ribs (711) and (721) may be integrally formed protruding along the longitudinal direction on the bottom surfaces of the horizontal members (71) and vertical members (72).

[0020] Additionally, the grid-type frame (70) is formed by a plurality of horizontal members (71) and a plurality of vertical members (72) intersecting each other, and a stopper-type support member (20) integrally provided with the grid-type frame (70) can be provided in a cell (73) formed by the horizontal members (71) and the vertical members (72). As shown in FIGS. 14 and 15, the mounting end (212) of the stopper-type support member (20) integrally provided with the grid-type frame (70) has an inner ring (212a) integrally provided to have an expanded diameter at the top of the support leg (211), and a connecting rib (212c) is provided on the outer side of the inner ring (212a) to be directly connected to the horizontal member (71) and vertical member (72) of the grid-type frame (70), and the inner ring (212a) of the mounting end (212) has circular side walls on the inner and outer sides to form a circular groove, and an air outflow groove is formed in the inner and outer side walls.

[0021] Additionally, on the upper part of the breathable mat (10) equipped with the stopper-type support member (20), one or more adsorption panels (31) are provided to form a filter layer (30), and on the upper part of the filter layer (30), one or more hollow panels (41) are provided to form a reinforcing layer (40), and on the upper part of the reinforcing layer (40), a finishing mortar is poured and hardened to form a finishing mortar layer (50).

[0022] Additionally, on the upper part of the reinforcing layer (40), a cushioning material (CM) in which a heating pipe (HP) is placed by a plurality of fixing pins (FP) may be provided so as to be embedded by a finishing mortar, or a heating panel (60) to which the heating pipe (HP) is fitted may be provided so as to be embedded by a finishing mortar.

[0023] In addition, the cylindrical main body (221) and the stopper (222) can be integrated by being connected by a plurality of thin connecting parts (223) having a thickness thinner than that of the stopper (222).

[0024] And, the heating panel (60) is formed by integrally providing a plurality of pipe support members (62) that partially fix a heating pipe (HP) to a grid-shaped base frame (61), wherein the pipe support members (62) are formed in the shape of triangular columns and have four support members (621) arranged to face each other with the heating pipe (HP) in between, and each support member (621) may have an opening (622) formed at the bottom so that internal air is discharged to the outside when pouring finishing mortar. Effects of the invention

[0025] According to the floor impact sound blocking structure for preventing inter-floor noise of the present invention, each of the plurality of stopper-type support members provided in the breathable mat is formed with a support body and an elastic cap, and the elastic cap is provided with a stopper part interposed between the support body and the slab to restrict the support body from descending below a set height, thereby preventing the floor impact sound blocking efficiency from decreasing due to excessive compression of the stopper-type support member supporting the breathable mat, and preventing cracks from occurring or local sinking from occurring in the finishing mortar layer due to large local deformation of the breathable mat.

[0026] In particular, the elastic cap can effectively block floor impact noise transmitted to lower floors by first relieving the load as the cylindrical main body is compressed, and then gradually relieving the load as the central protrusion and the peripheral protrusion come into contact with the supporting main body with a time difference.

[0027] Furthermore, the central protrusion protruding in a hemispherical shape and the corresponding insertion groove recessed in a hemispherical shape come into contact with each other over a relatively large area and relieve the load, thereby improving sound insulation efficiency.

[0028] In addition, the hemispherical pumping groove formed on the bottom surface of the elastic cap is compressed during the process in which the stopper part is pressurized by the support body, thereby pumping the air at the bottom of the elastic cap to disperse to the surroundings, so that the stopper part is naturally compressed and deformed, and the load can be gently relieved.

[0029] In addition, the air dispersed to the surroundings by the pumping groove is introduced into the interior of the elastic cap through the dispersion groove and the communication hole, and then into the interior of the support body through the inlet hole formed in the support leg and dispersed into the breathable mat, thereby resolving all problems caused by air stagnation or concentration in a specific space.

[0030] Moreover, since the cylindrical main body and the stopper part constituting the elastic cap are interconnected by a plurality of thin connecting parts, allowing for relatively free relative movement, the cylindrical main body and the stopper part are sequentially compressed by the supporting body, and the load can be smoothly relieved step by step. Brief explanation of the drawing

[0031] FIGS. 1a and 1b are cross-sectional views illustrating a conventional floor impact sound insulation structure. FIG. 1c is a cross-sectional view illustrating a floor impact sound insulation structure according to prior art literature, FIG. 2 is a cross-sectional view illustrating a floor impact sound blocking structure according to a first embodiment of the present invention, FIG. 3 is a perspective view illustrating the combined structure of a breathable mat and a stopper-type support member according to a first embodiment of the present invention. FIG. 4 is a cross-sectional view illustrating a state in which a breathable mat and a stopper-type support member according to the first embodiment of the present invention are provided on a slab to form a base layer structure. FIG. 5 is a bottom perspective view illustrating the lower structure of a stopper-type support member according to a first embodiment of the present invention, FIG. 6 is a cross-sectional view of an elastic cap according to a first embodiment of the present invention, FIG. 7 is a cross-sectional view illustrating a state in which a stopper-type support member according to a first embodiment of the present invention is inserted into a through hole. FIG. 8 is a perspective view illustrating the structure of a filter layer and a reinforcing layer according to a first embodiment of the present invention. FIG. 9 is a cross-sectional view illustrating a floor impact sound blocking structure according to a second embodiment of the present invention, FIG. 10 is a cross-sectional view illustrating a floor impact sound blocking structure according to a third embodiment of the present invention, FIG. 11 is a perspective view of a heating panel according to a third embodiment of the present invention, FIG. 12 is a bottom perspective view of a heating panel according to a third embodiment of the present invention, FIG. 13 is a cross-sectional view illustrating a floor impact sound blocking structure according to a fourth embodiment of the present invention, FIG. 14 is a perspective view illustrating a combined structure of a breathable mat and a mat support panel provided in a floor impact sound blocking structure according to a fourth embodiment of the present invention. FIG. 15 is a bottom perspective view of a mat support panel according to a fourth embodiment of the present invention. Specific details for implementing the invention

[0032] In the following, preferred embodiments of the invention are described in detail based on the drawings; however, specific descriptions of related known functions or configurations are omitted if it is determined that such descriptions may unnecessarily obscure the essence of the invention.

[0033] In the following description, the load is a load that causes floor impact sound and may include loads transmitted to the slab (SB) when a person moves or furniture moves, loads transmitted to the slab (SB) by an object falling on the floor, and loads repeatedly transmitted to the slab (SB) due to the operation of machinery / equipment.

[0034] A floor impact sound blocking structure (A) for preventing inter-floor noise according to the first embodiment of the present invention is provided on the upper part of a concrete slab (SB) of a building structure and, as shown in FIG. 2, includes a breathable mat (10), a plurality of stopper-type support members (20), a filter layer (30), a reinforcing layer (40), and a finishing mortar layer (50). A plurality of stopper-type support members (20) are combined with the breathable mat (10) to form a base layer structure of the floor impact sound blocking structure (A), and the filter layer (30), the reinforcing layer (40), and the finishing mortar layer (50) are sequentially stacked on the upper part to form the floor impact sound blocking structure (A) of the present invention.

[0035] The above breathable mat (10) is positioned to form an air layer of a certain thickness on the upper surface of the slab (SB), and one or more breathable mats (10) may be positioned to cover the entire upper surface area of ​​the slab (SB).

[0036] Such a breathable mat (10) may be provided as a non-woven mat or a coil mat, but it is preferable to provide it as a non-woven mat to form a more effective floor impact sound blocking structure (A) through combination with the stopper-type support member (20). At this time, the coil mat may be manufactured by processing irregularly twisted yarns to form a predetermined thickness, and the non-woven mat may be manufactured by processing a plurality of non-woven fabrics in a stacked state and pressing them with a hydraulic press to form a predetermined thickness.

[0037] Additionally, as illustrated in FIGS. 3 to 5, the breathable mat (10) is provided with a plurality of through holes (11) into which the stopper-type support member (20) is inserted and installed, and the through holes (11) are provided by being perforated in a circular shape, and the plurality of through holes (11) can be provided so as to be spaced apart from each other at a certain distance in the horizontal and vertical directions and distributed uniformly in the breathable mat (10).

[0038] The above stopper-type support member (20) is provided to be inserted into a through hole (11) of the breathable mat (10) to support the breathable mat (10), and a plurality of stopper-type support members (20) are provided to be distributed in the breathable mat (10). The plurality of stopper-type support members (20) are basically provided in the breathable mat (10) to be uniformly distributed, but may be exceptionally densely arranged in areas where a large impact or load is expected to be applied.

[0039] A stopper-type support member (20) of this type includes a support body (210) and an elastic cap (220), and the elastic cap (220) is press-fitted onto a support leg (211) of the support body (210) to form a stopper-type support member (20). At this time, the support body (210) is formed of a plastic-based synthetic resin, and the elastic cap (220) can be formed of any one of TPV (Thermoplastic Vulcanizate), SEBS (Styrene-Ethylene-Butylene-Styrene), EPDM (Ethylene Propylene Diene Monomer), other synthetic resin rubbers, and silicone, and it is preferable that the elastic cap (220) be formed of silicone.

[0040] The above support body (210) includes a support leg (211) in the shape of a truncated cone that is wider at the top and narrower at the bottom, and a seating portion (212) that is integrally formed at the top of the support leg (211) and is seated on the upper surface of the breathable mat (10).

[0041] A plurality of annular binding protrusions (213) are formed protruding from the outer surface of the upper part of the support leg (211) so that an elastic cap (220) that is forcibly fitted is stably fixed, and a plurality of inlet holes (214) for the inflow and outflow of air are formed radially on the lower part of the annular binding protrusions (213).

[0042] In particular, the bottom surface of the support leg (211) is provided with a hemispherical insertion groove (215) into which the central protrusion (222a) of the stopper part (222) described later is inserted and contacted, and a flat bottom surface (216) is provided in an annular structure centered on the insertion groove (215).

[0043] The above-mentioned mounting member (212) includes an inner ring (212a), an outer ring (212b), and a plurality of connecting ribs (212c) connecting the inner ring (212a) and the outer ring (212b). The inner ring (212a) is integrally formed at the top of the support leg (211) to have a diameter larger than that of the support leg (211), and the outer ring (212b) is provided to be spaced outwardly and concentric with the inner ring (212a). The plurality of connecting ribs (212c) are provided to extend radially from the inner ring (212a) to connect the inner ring (212a) and the outer ring (212b).

[0044] Additionally, as shown in FIG. 3, the above-mentioned mounting member (212) is integrally provided with an inner ring (212a) having an expanded diameter at the top of the support leg (211), and an outer ring (212b) is provided spaced apart from the inner ring (212a). The inner ring (212a) and the outer ring (212b) are connected by a plurality of connecting ribs (212c) to form the structure, and a plurality of air outlet grooves (212d) may be formed radially in the inner ring (212a).

[0045] The support body (210) is installed such that the support leg (211) is inserted into the through hole (11) and the seating portion (212) is seated on the upper surface of the breathable mat (10). At this time, it is preferable that the support leg (211) has a length shorter than the thickness of the breathable mat (10) so that its lower end is spaced apart from the upper surface of the slab (SB).

[0046] As illustrated in FIGS. 4 to 7, the elastic cap (220) includes a cylindrical main body (221) and a stopper (222) formed integrally on the inner lower side of the cylindrical main body (221), and the cylindrical main body (221) and the stopper (222) are connected by a plurality of thin connecting parts (223) to form an integrated structure.

[0047] The above cylindrical main body (221) is compressed by the load transmitted through the seating portion (212) to relieve the load, and the upper end is in close contact with the bottom surface of the seating portion (212) and the lower end is in close contact with the upper surface of the slab (SB), and has an inner diameter corresponding to the outer diameter of the support leg (211) so as to be forcibly fitted to the support leg (211).

[0048] The above stopper part (222) is interposed between the support leg (211) and the slab (SB) to further relieve the load transmitted from the support body (210) and to restrict the support body (210) from descending below a set height, and includes a central protrusion (222a) and a peripheral protrusion (222b).

[0049] The central protrusion (222a) is formed to protrude upward from the center of the stopper part (222) so as to be inserted into the insertion groove (215), and is provided so as to form a first gap (G1) of about 0.5 to 1 mm in size between it and the insertion groove (215).

[0050] It is preferable that such a central protrusion (222a) be formed in a hemispherical shape corresponding to the hemispherical insertion groove (215) so that the contact area with the insertion groove (215) is increased and the load can be stably relieved without directional restrictions.

[0051] The above peripheral protrusion (222b) is formed around the central protrusion (222a) so as to be in close contact with the bottom surface (216) of the support leg (211), and has a flat upper surface corresponding to the bottom surface (216) of the support leg (211), and is provided so as to form a second gap (G2) of about 1 to 2 mm in size between it and the bottom surface (216).

[0052] In this way, the central protrusion (222a) and the peripheral protrusion (222b) protrude at different heights to form a first gap (G1) and a second gap (G2), respectively. When a load is applied and the support body (210) descends, the central protrusion (222a) first comes into contact with the support leg (211) and is compressed to relieve the initial load, and then the peripheral protrusion (222b) comes into contact with the bottom surface (216) of the support leg (211) and is compressed to relieve the remaining load and limit the descent of the support body (210).

[0053] Additionally, a pumping groove (224) is provided at the center of the bottom surface of the elastic cap (220), and a plurality of dispersion grooves (225) are provided to extend radially from the center of the pumping groove (224), and each of the plurality of dispersion grooves (225) is connected to a plurality of communication holes (226) formed between the thin connecting parts (223).

[0054] Meanwhile, the pumping groove (224) is provided to be recessed in a hemispherical shape corresponding to the central protrusion (222a), thereby reducing the effective cross-sectional area of ​​the center of the stopper part (222) where the central protrusion (222a) is located. Accordingly, when a load is applied to the central protrusion (222a) through the support leg (211), the central protrusion (222a) can smoothly undergo compressive deformation to relieve the load, and in this process, the pumping groove (224) contracts and pumps the internal air, and the pumped air flows into the space between the support leg (211) and the elastic cap (220) through the dispersion groove (225) and the communication hole (226), and then flows into the interior of the support leg (211) through a plurality of inlet holes (214) and is dispersed into the breathable mat (10).

[0055] In this way, during the process in which the stopper part (222) is compressed by the support body (210), the elastic cap (220) pumps and disperses the air from the bottom, thereby preventing the air from stagnating or concentrating in a specific area of ​​the breathable mat (10).

[0056] The above-mentioned thin connecting part (223) is formed to have a thin structure having a thinner thickness than the stopper part (222), extending radially from the center of the stopper part (222) to connect the cylindrical main body part (221) and the stopper part (222). In this way, the cylindrical main body part (221) and the stopper part (222) are manufactured integrally by the thin connecting part (223), thereby eliminating the assembly process of the cylindrical main body part (221) and the stopper part (222), which can reduce the number of construction processes, and the cylindrical main body part (221) and the stopper part (222) can move independently to gradually mitigate impact or load.

[0057] As described above, the stopper-type support member (20), formed by combining the support body (210) and the elastic cap (220), can be provided in the breathable mat (10) by arranging the support leg (211) and the elastic cap (220) to be inserted into the through hole (11) of the breathable mat (10) placed on the upper part of the slab (SB). In this manner, a plurality of stopper-type support members (20) are distributed and installed in the breathable mat (10) to form a base structure of the floor impact sound blocking structure (A) for preventing inter-floor noise.

[0058] As shown in FIGS. 2 and 8, a filter layer (30), a reinforcing layer (40), and a finishing mortar layer (50) are sequentially stacked on the upper part of the base layer structure, thereby forming a floor impact sound blocking structure (A) according to the first embodiment of the present invention.

[0059] The filter layer (30) may be formed by providing a plurality of adsorption panels (31) formed in a square or rectangular shape so as to be placed against each other. Of course, if one adsorption panel (31) can cover the entire upper surface of the breathable mat (10), one adsorption panel (31) may be placed on the upper surface of the breathable mat (10) to form the filter layer (30).

[0060] The adsorption panel (31) arranged to form the filter layer (30) is formed as a fibrous sheet having an irregular fiber arrangement in which fibers are randomly intertwined, so as to block solids of the finishing mortar from entering the breathable mat (10).

[0061] The reinforcing layer (40) is formed to be stacked on top of the filter layer (30) to distribute the load over a wider area, and can be formed by a plurality of hollow panels (41) in a square or rectangular shape being placed against each other on top of the filter layer (30). Of course, if a single hollow panel (41) can cover the entire upper surface of the filter layer (30), a single hollow panel (41) may be placed on top of the filter layer (30) to form the reinforcing layer (40), and if a plurality of hollow panels (41) are placed against each other, tape may be attached to the connection portions of the hollow panels (41) to block the gaps in the connection portions.

[0062] The hollow panel (41) arranged to form the reinforcing layer (40) as described above may be formed from a plastic corrugated board having a plurality of channels (C) extending in one direction, in which an upper sheet layer (411) and a lower sheet layer (412) are joined so as to face each other with a plurality of reinforcing ribs (413) in between.

[0063] Meanwhile, as shown in FIG. 9, depending on the embodiment, a cushioning material (CM) in which a heating pipe (HP) is placed by a plurality of fixing pins (FP) may be provided on the upper part of the reinforcing layer (40) and buried by a finishing mortar (FM), or as shown in FIG. 10, a heating panel (60) in which a heating pipe (HP) is fitted may be provided on the upper part of the reinforcing layer (40) and buried by a finishing mortar.

[0064] As illustrated in FIGS. 11 and 12, the heating panel (60) comprises a grid-shaped base frame (61) forming a basic skeletal structure and a plurality of pipe support members (62) integrally distributed on the base frame (61) to partially fix the heating pipe (HP). Each pipe support member (62) may be formed by including four support members (621) arranged to face each other with the heating pipe (HP) in between, each of which is formed in the shape of a triangular prism. An opening (622) may be formed at the bottom of each support member (621) formed in the shape of a triangular prism so that internal air is discharged to the outside when the finishing mortar is poured, allowing the finishing mortar to be filled uniformly.

[0065] In the following description, a floor impact sound blocking structure (A) for preventing inter-floor noise according to the fourth embodiment of the present invention is described. Components identical or similar to the components of the first embodiment described above are given the same reference numerals, and detailed descriptions are omitted to avoid redundant explanations.

[0066] A floor impact sound blocking structure (A) for preventing inter-floor noise according to the fourth embodiment of the present invention comprises, as shown in FIGS. 13 to 15, a breathable mat (10), a mat support panel (MP), a filter layer (30), a reinforcing layer (40), and a finishing mortar layer (50), wherein the mat support panel (MP) is assembled to the breathable mat (10) to form a base layer structure of the floor impact sound blocking structure (A). On the upper part of the base layer structure formed by combining the breathable mat (10) and the mat support panel (MP), the filter layer (30) and the reinforcing layer (40) are sequentially stacked, and a finishing mortar is poured and hardened on the upper part of the reinforcing layer (40) to form a finishing mortar layer (50).

[0067] Of course, as in the second embodiment, a finishing mortar layer (50) in which the heating pipe (HP) is embedded may be formed by pouring and hardening a finishing mortar with a cushioning material (CM) in which the heating pipe (HP) is placed by a plurality of fixing pins (FP) on the upper part of the reinforcing layer (40), or as in the third embodiment, a finishing mortar layer (50) in which the heating pipe (HP) is embedded may be formed by pouring and hardening a finishing mortar with a heating panel (60) in which the heating pipe (HP) is fitted and coupled, installed on the upper part of the reinforcing layer (40).

[0068] The above mat support panel (MP) includes a grid-shaped frame (70) placed on top of a breathable mat (10) and a plurality of stopper-shaped support members (20) integrally formed to protrude from the bottom surface of the grid-shaped frame (70), and the plurality of stopper-shaped support members (20) are provided to be uniformly distributed over the entire area of ​​the grid-shaped frame (70).

[0069] The above grid-type frame (70) may be formed by combining a pair of horizontal members (71) and a pair of vertical members (72) to form a square frame (FR), and a square grid-type frame (70) may be formed by having a plurality of cells (73) defined by the horizontal members (71) and vertical members (72) intersecting within the square frame (FR). This grid-type frame (70) may be formed from a plastic-based synthetic resin, just like the support body (210).

[0070] In order for the grid-type frame (70), formed from a plastic-based synthetic resin, to have sufficient rigidity, reinforcing ribs (711) and (721) extending along the longitudinal direction of each member are integrally formed protruding from the bottom surfaces of the horizontal member (71) and vertical member (72). That is, reinforcing ribs (711) extending in the horizontal direction are integrally formed protruding from the bottom surface of the horizontal member (71), and reinforcing ribs (721) extending in the vertical direction are integrally formed protruding from the bottom surface of the vertical member (72). The reinforcing ribs (711) and (721) have a rectangular cross-section extending long in the vertical direction to provide sufficient resistance to vertical loads.

[0071] The above stopper-type support member (20) includes a support body (210) and an elastic cap (220), and the support body (210) is formed by having a support leg (211) in the shape of a truncated cone that is wider at the top and narrower at the bottom, and a seating portion (212) formed integrally with the grid-type frame (70) at the top.

[0072] At this time, the above-mentioned mounting member (212) may be integrally formed with the grid-shaped frame (70) by including an inner ring (212a) formed with an expanded diameter at the top of the support leg (211), and a plurality of connecting ribs (212c) that extend radially from the inner ring (212a) and are connected to the horizontal member (71) and the vertical member (72).

[0073] Meanwhile, a plurality of support bodies (210) are provided on the bottom surface of the grid-shaped frame (70) so as to protrude downward, and the elastic cap (220) is press-fitted onto all or part of the plurality of support bodies (210) to form a mat support panel (MP). The mat support panel (MP) formed in this way has a stopper-type support member (20) inserted into the through hole (11) of the breathable mat (10), and the grid-shaped frame (70) is provided on the breathable mat (10) so as to be seated on the breathable mat (10).

[0074] Meanwhile, the seating portion (212) of the stopper-type support member (20) integrally provided with the grid-type frame (70) is integrally provided with an inner ring (212a) having an expanded diameter at the top of the support leg (211) as shown in FIGS. 14 and 15, and a connecting rib (212c) is provided on the outer side of the inner ring (212a) to be directly connected to the horizontal member (71) and vertical member (72) of the grid-type frame (70), and the inner ring (212a) of the seating portion (212) is provided with circular side walls on the inner and outer sides to form a circular groove, and an air outflow groove is formed in the inner and outer side walls.

[0075] Additionally, one or more of the mat support panels (MP) are placed on the upper surface of the breathable mat (10) to cover all areas of the breathable mat (10), and when multiple mat support panels (MP) are placed, the side portions of adjacent mat support panels (MP) are arranged to be in contact with each other.

[0076] As described above, a breathable mat (10) is provided on the upper surface of a slab (SB) of a building structure, and a stopper-type support member (20) is provided in the through hole (11) of the breathable mat (10) to form a base layer structure, and a filter layer (30), a reinforcement layer (40), and a finishing mortar layer (50) are sequentially provided on the upper surface to form a floor impact sound blocking structure (A) of the present invention, wherein a load generated from an upper floor unit is transmitted to the stopper-type support member (20) through the finishing mortar layer (50), the reinforcement layer (40), and the filter layer (30), and the stopper-type support member (20) sequentially compresses the cylindrical body part (221) and the stopper part (222) of the elastic cap (220) by the descent of the support body (210), thereby gradually relieving the load, and finally, the descent of the support body (210) is restricted by the stopper part (222), thereby the floor It is possible to effectively block impact sounds while preventing cracks or localized sinking in the finishing mortar layer (50) due to localized large deformation of the breathable mat (10).

[0077] More specifically, when the support body (210) is lowered by the transmitted load, the cylindrical body part (221) of the elastic cap (220) is pressed and compressed by the seating part (212), and in this process, 70 to 80 percent of the load is absorbed and relieved by the elastic cap (220).

[0078] In this way, as the cylindrical main body (221) is compressed and absorbs a significant portion of the load, the stopper part (222), which is separated from the support leg (211) by the first gap (G1) and the second gap (G2), is maintained in its initial state.

[0079] Meanwhile, as the support body (210) continues to descend, the central protrusion (222a) of the stopper part (222) is inserted into the insertion groove (215) formed at the center of the bottom surface of the support leg (211) and comes into close contact. This compresses the central protrusion (222a) and relieves the remaining load, and subsequently, the peripheral protrusion (222b) comes into close contact with the bottom surface (216) of the support leg (211) and is compressed, thereby further relieving the remaining load and simultaneously limiting the descent of the support body (210). Therefore, it is possible to prevent the breathable mat (10) from being excessively compressed and deformed by the load.

[0080] In this way, the stopper-type support member (20) of the present invention can effectively block floor impact noise transmitted to the lower floors by relieving the load in stages through the organic combination of the support body (210) and the elastic cap (220) and preventing the breathable mat (10) from being excessively compressed locally, while also preventing cracks from occurring or local sinking in the finishing mortar layer (50).

[0081] It will be understood by those skilled in the art that the floor impact sound blocking structure for preventing inter-floor noise according to the present invention, described above, can be implemented in other specific forms without altering the technical concept or essential features of the present invention.

[0082] Therefore, the embodiments described above should be understood as illustrative in all respects and not limiting, and the scope of the invention is defined by the claims set forth below rather than by the foregoing detailed description, and all modifications or variations derived from the meaning and scope of the claims and equivalent concepts should be interpreted as being included within the scope of the invention. Explanation of the symbols

[0083] A: Floor impact sound insulation structure MP: Mat support panel 10: Breathable mat 11: Through holes 20: Stopper-type support member 210: Support body 211: Support legs 212: Landing platform 212a: Inner ring 212b: Outer ring 212c: Connecting rib 213: Annular binding projection 214: Inlet port 215: Insertion groove 216: Bottom surface 220: Elastic cap 221: Cylindrical main body part 222: Stopper part 222a: Central protrusion 222b: Peripheral protrusion 223: Box-shaped connector 224: Pumping groove 225: Dispersion groove 226: Chimney hole 30: Filter layer 31: Adsorption panel 40: Reinforcement layer 41: Hollow panel 50: Finishing mortar layer 60: Heating panel 70: Grid frame 71: Horizontal member 711: Reinforcement bar 72: Vertical member 721: Reinforcement meat 73: Cell

Claims

Claim 1 In an inter-floor impact sound blocking structure (A) for noise prevention provided on the upper surface of a concrete slab (SB), which is a base floor structure of a building structure, the inter-floor impact sound blocking structure (A) comprises a breathable mat (10) provided on the upper surface of the concrete slab (SB), and a plurality of through holes (11) provided at regular intervals in the breathable mat (10), wherein a stopper-type support member (20) is inserted into the through holes (11) of the breathable mat (10), wherein a cylindrical elastic cap (220) is forcibly fitted to the lower part of a support body (210) of the stopper-type support member (20), and the support body (210) is integrally provided with a seating end (212) that is seated on the upper surface of the breathable mat (10) at the top of a support leg (211) in the shape of a truncated cone that is wider at the top and narrower at the bottom, and the elastic cap (220) is on the inner side of the bottom surface of the cylindrical body part (221). A floor impact sound blocking structure for preventing inter-floor noise, characterized in that a stopper portion (222) is formed protruding upward, so that the cylindrical body portion (221) of the elastic cap (220) is fitted and coupled from the bottom to the support leg (211) of the support body (210), a central protrusion (222a) is provided to protrude upward from the center of the stopper portion (222) of the elastic cap (220) so that a first gap (G1) is formed from the support leg (211), and a peripheral protrusion (222b) is provided to protrude upward from the center of the central protrusion (222a) so that a second gap (G2) larger than the first gap (G1) is formed. Claim 2 In an inter-floor impact sound blocking structure (A) for noise prevention provided on the upper surface of a concrete slab (SB), which is a base floor structure of a building structure, the inter-floor impact sound blocking structure (A) is provided with a breathable mat (10) on the upper surface of the concrete slab (SB), and a plurality of mat support panels (MP) are provided in abutment to the entire upper surface of the breathable mat (10). The mat support panels (MP) are formed by providing a plurality of stopper-type support members (20) protruding from the lower surface of a square grid-type frame (70). A cylindrical elastic cap (220) is forcibly fitted to the lower part of a support body (210) of the stopper-type support member (20). The support body (210) is provided with a seating portion (212) integrally formed on the upper end of a support leg (211) in the shape of a truncated cone that is wider at the top and narrower at the bottom, and the elastic cap (220) is of the cylindrical body part (221). A floor impact sound blocking structure for preventing inter-floor noise, characterized in that a stopper portion (222) is formed protruding upward on the inner side of the bottom surface, and the cylindrical body portion (221) of the elastic cap (220) is fitted and coupled from the bottom to the support leg (211) of the support body (210), and a central protrusion (222a) is provided to protrude upward from the center of the stopper portion (222) of the elastic cap (220) so as to form a first gap (G1) from the support leg (211), and a peripheral protrusion (222b) is provided to protrude upward around the central protrusion (222a) so as to form a second gap (G2) larger than the first gap (G1). Claim 3 delete Claim 4 A floor impact sound blocking structure for preventing inter-floor noise, characterized in that, in claim 1 or 2, a hemispherical insertion groove (215) is provided concavely upward on the bottom surface of a support leg (211) of the support body (210), and a hemispherical central protrusion (222a) is provided convexly upward on the center of the bottom surface of the elastic cap (220), so that the central protrusion (222a) provided on the bottom surface of the elastic cap (220) corresponds to the insertion groove (215) provided on the bottom surface of the support leg (211). Claim 5 A floor impact sound blocking structure for preventing inter-floor noise according to claim 1 or 2, wherein a pumping groove (224) for pumping air from the bottom is provided on the bottom surface of the stopper part (222) of the elastic cap (220) during the process in which the stopper part (222) is pressed and compressed by the support leg (211) of the support body (210), a plurality of dispersion grooves (225) for dispersing the pumped air to the surroundings are provided on the bottom surface of the stopper part (222) extending radially from the pumping groove (224), and a plurality of communication holes (226) connected to the dispersion grooves (225) are formed penetrating the stopper part (222). Claim 6 A floor impact sound blocking structure for preventing inter-floor noise, characterized in that, in claim 5, a plurality of inlet holes (214) are formed on the outer surface of the support leg (211) of the support body (210) so that air flowing between the support leg (211) and the elastic cap (220) through the communication hole (226) of the elastic cap (220) flows into the interior of the support leg (211).

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