L-shaped anti-noise structure
By setting an L-shaped noise-reducing structure at the inside corner of the downpipe, with an inner noise-reducing layer and a reinforced outer layer, and fixing it with a seal, the problems of poor sound insulation and insufficient durability when the L-shaped thin-walled component surrounds the downpipe are solved, achieving the effects of noise reduction and structural stability.
Patent Information
- Application Number
- CN202520168143.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-24
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-01-24
AI Technical Summary
Existing L-shaped thin-walled components have poor sound insulation, insufficient durability, and inadequate stability when enclosing downpipes.
The L-shaped noise reduction structure includes a vertical first plate and a second plate, with a noise-reducing inner layer and a reinforcing outer layer inside. The noise-reducing inner layer is made of lightweight material, and the reinforcing outer layer is made of slurry. The inner layer has a perforated or recessed structure, and the outer layer is filled with a perforated or recessed structure. It is then sealed and fixed to the building wall through vertical gaps.
It effectively reduces the impact of water noise, improves impact and pressure resistance, prevents structural cracking, improves mechanical properties, and ensures a stable connection between the structure and the wall.
Smart Images
Figure CN223838339U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of building noise reduction technology, and more specifically, relates to an L-shaped noise reduction structure. Background Technology
[0002] Currently, there are generally three types of noise reduction measures for building downpipes: The first is to enclose the downpipe with brick masonry and the building's internal corner wall. This method is costly, time-consuming, and occupies a large area, making it unsuitable for modern prefabricated and dry construction requirements. The second is to assemble lightweight wall panels and enclose the downpipe with the building's internal corner wall. Although this method meets the requirements of modern prefabricated and dry construction, it still suffers from high cost, long construction period, and large area occupation. The third is to use L-shaped thin-walled components to enclose the downpipe with the building's internal corner wall. This method solves the above shortcomings, but the sound insulation effect is poor. The L-shaped thin-walled structure has low strength, and its side edges are fixed to the wall with metal clips, resulting in poor durability and stability. Utility Model Content
[0003] The purpose of this application is to provide an L-shaped noise reduction structure, which aims to solve the technical problems of poor sound insulation, poor durability and stability when L-shaped thin-walled components surround downpipes in the prior art.
[0004] To achieve the above objectives, the technical solution adopted in this application embodiment is as follows: An L-shaped noise reduction structure is provided, installed at the inside corner of the drainpipe in the room, surrounding the drainpipe. It includes a first plate and a second plate perpendicular to each other. The first plate and / or the second plate includes a noise-reducing inner layer and a reinforcing outer layer. The noise-reducing inner layer is formed from a lightweight material, and the reinforcing outer layer is formed by curing a slurry. The noise-reducing inner layer has a perforated structure and / or a concave structure. The slurry of the reinforcing outer layer fills the perforated structure and / or the concave structure. The side edges of the first plate and the second plate are sealed and fixed to the building wall or air duct.
[0005] Specifically, the cross-sectional shape of the open structure and / or the concave hole structure is strip-shaped, circular, or irregular.
[0006] Specifically, the reinforcing outer layer contains a reinforcing material, which is at least one of steel bars, steel wires, metal mesh, short metal filaments, short fibers, fiber bundles, and fiber mesh.
[0007] Specifically, the noise-reducing inner layer is at least one of extruded polystyrene board, polystyrene board, polyurethane board, damping board, sound insulation cotton, mineral wool board, fiber bundles, ceramsite, sponge board, bubble board, foaming adhesive or foaming agent molded material.
[0008] Specifically, the outer surface of the reinforced outer layer is a convex-concave surface.
[0009] Specifically, the side edges of the first plate and the second plate are provided with vertical notches with outward openings. When the L-shaped noise reduction structure is installed, the vertical notches are enclosed with the building wall or air duct to form a vertical gap with outward openings. By filling the vertical gap with sealant, the L-shaped noise reduction structure is sealed and fixed to the building wall or air duct.
[0010] Specifically, an inspection port is provided on the first or second plate.
[0011] Specifically, the noise reduction inner layer is a single-layer hollow board; or, the noise reduction inner layer is composed of multiple hollow boards stacked together.
[0012] Specifically, the left and right sides and / or the top and bottom edges of the first and second plates are formed by curing slurry.
[0013] Specifically, the reinforcement is exposed on the left and right sides of the first plate and the second plate.
[0014] In this application, an L-shaped noise reduction structure is used for noise reduction treatment of building downpipes. It is installed on the outside of the building downpipe, wrapping the downpipe inside. Since the inner side of the L-shaped noise reduction structure is provided with a noise reduction inner layer, it can effectively reduce the impact of water noise on the indoor environment. At the same time, the noise reduction inner layer has a perforated and / or concave structure, and the slurry of the reinforcing outer layer fills the perforated and / or concave structure. This strengthens the connection between the noise reduction inner layer and the reinforcing outer layer, effectively preventing the separation between the two layers, improving the impact and compressive strength of the L-shaped noise reduction structure, preventing the L-shaped noise reduction structure from cracking, and improving the mechanical properties of the L-shaped noise reduction structure. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This is a three-dimensional schematic diagram of the L-shaped noise reduction structure provided in Embodiment 1 of this application;
[0017] Figure 2 for Figure 1 Top-view sectional view of the L-shaped noise reduction structure during installation;
[0018] Figure 3 This is a three-dimensional schematic diagram of the L-shaped noise reduction structure provided in Embodiment 2 of this application;
[0019] Figure 4 for Figure 3 Top-view sectional view of the L-shaped noise reduction structure during installation;
[0020] Figure 5 This is a three-dimensional schematic diagram of the L-shaped noise reduction structure provided in Embodiment 3 of this application;
[0021] Figure 6 for Figure 5 Top-view sectional view of the L-shaped noise reduction structure during installation;
[0022] The following are the labeling elements in the figure:
[0023] 10-Downpipe;
[0024] 20-Floor slab;
[0025] 30 - Building walls;
[0026] 40-L-shaped noise reduction structure; 41-First flat plate; 42-Second flat plate; 43-Noise reduction inner layer; 44-Reinforced outer layer; 45-Open structure; 46-Reinforcement material; 47-Vertical notch; 48-Vertical gap; 49-Inspection port; 410-Concave hole structure; 411-Convex and concave surface;
[0027] 50 - Sealing grout;
[0028] 60-Waterproof sill;
[0029] 70-Water supply pipe;
[0030] 80-Air duct. Detailed Implementation
[0031] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.
[0032] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.
[0033] It should be understood that the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.
[0034] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, and "several" means one or more, unless otherwise explicitly specified.
[0035] Example 1
[0036] See Figure 1 , Figure 2 As shown in Embodiment 1 of this application, an L-shaped noise reduction structure 40 is provided, which is installed at the inside corner of the downpipe 10 in the room, supported by the floor slab 20 and enclosed by the building wall 30 to form a rectangular space, with the downpipe 10 located within the rectangular space. The L-shaped noise reduction structure 40 includes a first plate 41 and a second plate 42 that are perpendicular to each other. The first plate 41 and / or the second plate 42 include a noise-reducing inner layer 43 and a reinforcing outer layer 44. The noise-reducing inner layer 43 is formed from a lightweight material, and the reinforcing outer layer 44 is formed by curing slurry. The noise-reducing inner layer 43 has a perforated structure 45, and the slurry of the reinforcing outer layer 44 fills the perforated structure 45. When the L-shaped noise reduction structure 40 is installed at the inside corner of the downpipe 10, the side edges of the first plate 41 and the second plate 42 are sealed and fixed to the building wall 30.
[0037] In this application, the L-shaped noise reduction structure 40 is used for noise reduction treatment of the building downpipe 10. It is set on the outside of the building downpipe 10 and wraps the building downpipe 10 inside. Since the inner side of the L-shaped noise reduction structure 40 is provided with a noise reduction inner layer 43, it can effectively reduce the impact of water noise on the indoor environment. At the same time, the noise reduction inner layer 43 is provided with a perforated structure 45. The slurry of the reinforced outer layer 44 fills the perforated structure 45, which strengthens the connection between the noise reduction inner layer 43 and the reinforced outer layer 44, effectively preventing the separation between the inner and outer layers, and improving the impact and pressure resistance of the L-shaped noise reduction structure 40, preventing the L-shaped noise reduction structure 40 from cracking, and improving the mechanical properties of the L-shaped noise reduction structure 40.
[0038] Specifically, the cross-sectional shape of the open structure 45 is strip-shaped, circular, or irregular.
[0039] Specifically, the outer reinforcing layer 44 is formed by curing cement mortar, and the internal reinforcement 46 is a metal mesh to enhance the crack resistance and impact resistance of the L-shaped noise-reducing structure 40. Of course, the reinforcement 46 can also be replaced by steel bars, steel wires, short metal filaments, short fibers, fiber bundles, fiber mesh, etc.
[0040] In this embodiment, the noise-reducing inner layer 43 is an extruded polystyrene board. This board is lightweight and has a certain strength, which facilitates the molding of the L-shaped noise-reducing structure 40 and helps to improve the strength of the L-shaped noise-reducing structure 40. Of course, the noise-reducing inner layer 43 can also be replaced by other sound-absorbing materials such as lightweight polystyrene board, polyurethane board, damping board, sound insulation cotton, mineral wool board, fiber bundles, ceramsite, sponge board, bubble board, foamed adhesive or foaming agent molded products.
[0041] Reference Figure 1 In this embodiment, the side edges of the first plate 41 and the second plate 42 are provided with vertical notches 47 facing outwards. (Refer to...) Figure 2 During installation, the L-shaped noise-reducing structure 40 forms an outward-facing vertical gap 48 by enclosing the vertical notch 47 with the building wall 30. By filling the vertical gap 48 with sealant 50, the L-shaped noise-reducing structure 40 is firmly sealed to the building wall 30, effectively ensuring the stability of the decorative surfaces such as facing bricks on the L-shaped noise-reducing structure 40, preventing cracking and hollowing, and forming a firm, stable, closed rectangular space outside the downpipe 10. In this embodiment, the cross-sectional shape of the vertical gap 48 is polygonal. This shape improves the adhesion between the side edges of the first plate 41 and the second plate 42 and the building wall 30.
[0042] In this embodiment, the noise-reducing inner layer 43 and the reinforcing outer layer 44 are integrally formed. Of course, they can also be spliced, bound, or glued together.
[0043] In this embodiment, the noise-reducing inner layer 43 is a single-layer extruded polystyrene board. Of course, the noise-reducing inner layer 43 can be a single-layer hollow board, or it can be composed of multiple layers of hollow boards stacked together.
[0044] In this embodiment, the left and right sides and / or top and bottom edges of the first plate 41 and the second plate 42 are formed by curing slurry. The L-shaped noise reduction structure 40 is edged with cured slurry, which strengthens the flexural strength of the L-shaped noise reduction structure 40.
[0045] Example 2
[0046] See Figure 3 , Figure 4 As shown, in the L-shaped noise reduction structure 40 provided in Embodiment 2 of this application, the cross-section of the vertical gap 48 formed by the vertical notch 47 of the side edges of the first plate 41 and the second plate 42 and the building wall 30 is triangular. This shape makes it easier to form the side edges of the first plate 41 and the second plate 42.
[0047] Moreover, in this embodiment, the L-shaped noise reduction structure 40 is supported on the waterproof sill 60, and the L-shaped noise reduction structure 40 and the building wall 30 not only enclose the downpipe 10, but also the water supply pipe 70.
[0048] In this embodiment, the L-shaped noise reduction structure 40 is provided with an inspection port 49, and the inspection port 49 is provided with a sealing device (not labeled in the figure). By providing the inspection port 49, the sealing device can be opened to facilitate the inspection and maintenance of the internal downpipe 10.
[0049] In this embodiment, there is no floor slab 20 in the rectangular space enclosed by the L-shaped noise reduction structure 40 and the building wall 30, that is, the rectangular space enclosed by the L-shaped noise reduction structure 40 and the building wall 30 is vertically connected.
[0050] In this embodiment, the other structures of the L-shaped noise reduction structure 40 are the same as in Embodiment 1, and will not be described again here.
[0051] Example 3
[0052] Reference Figure 5 , Figure 6 In the L-shaped noise reduction structure 40 provided in Embodiment 3 of this application, the cross-section of the vertical gap 48 formed by the vertical notches 47 on the side edges of the first plate 41 and the second plate 42 and the building wall 30 is different from that in Embodiments 1 and 2. In this embodiment, the cross-section has an arc-shaped edge and is a segmented externally opening vertical gap 48. In this way, the L-shaped noise reduction structure 40 can be installed firmly and saves the filling sealant 50. In this embodiment, one of the first plate 41 and the second plate 42 is sealed and fixed to the building wall 30, and the other plate is sealed and fixed to the air duct 80.
[0053] In this embodiment, the noise-reducing inner layer 43 has a recessed hole structure 410. Compared with the open structure 45, the recessed hole structure 410 does not penetrate the noise-reducing inner layer 43. The slurry of the reinforcing outer layer 44 fills the recessed hole structure 410, which also strengthens the connection between the noise-reducing inner layer 43 and the reinforcing outer layer 44. At the same time, the recessed hole structure 410 also facilitates demolding when manufacturing the L-shaped noise-reducing structure 40.
[0054] In this embodiment, the outer surface of the reinforcing outer layer 44 of the first plate 41 and the second plate 42 is a convex-concave surface 411. The convex-concave surface 411 has better pull-out force, thus improving the adhesion performance when decorative stickers are applied to the convex-concave surface 411.
[0055] In this embodiment, the reinforcement 46 of the outer layer 44 is exposed on the left and right sides of the first plate 41 and the second plate 42. In this way, the exposed reinforcement 46 combines with the filling grout of the vertical gap 48, resulting in stronger tensile strength and enabling a more secure installation of the L-shaped noise reduction structure 40 to the building wall or air duct.
[0056] In this embodiment, the other structures of the L-shaped noise reduction structure 40 are the same as in Embodiment 1, and will not be described again here.
[0057] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application.
Claims
1. An L-shaped noise reduction structure, characterized in that: Located at the inside corner of the drainpipe in the room, surrounding the drainpipe, it includes a first plate and a second plate perpendicular to each other. The first plate and / or the second plate includes a noise-reducing inner layer and a reinforcing outer layer. The noise-reducing inner layer is formed from a lightweight material, and the reinforcing outer layer is formed by curing slurry. The noise-reducing inner layer has a perforated structure and / or a concave structure. The slurry of the reinforcing outer layer fills the perforated structure and / or the concave structure. The side edges of the first plate and the second plate are sealed and fixed to the building wall or air duct.
2. The L-shaped noise reduction structure as described in claim 1, characterized in that: The cross-sectional shape of the open structure and / or the concave structure is strip-shaped or circular.
3. The L-shaped noise reduction structure as described in claim 1, characterized in that: The reinforced outer layer contains a reinforcing material, which is at least one of steel bars, steel wires, metal mesh, short metal filaments, short fibers, fiber bundles, and fiber mesh.
4. The L-shaped noise reduction structure as described in claim 1, characterized in that: The noise-reducing inner layer is at least one of the following: extruded board, polystyrene board, polyurethane board, damping board, sound insulation cotton, mineral wool board, fiber bundle, ceramsite, sponge board, bubble board, foaming adhesive or foaming agent molded material.
5. The L-shaped noise reduction structure as described in claim 1, characterized in that: The outer surface of the reinforced outer layer is convex and concave.
6. The L-shaped noise reduction structure as described in claim 1, characterized in that: The first plate and the second plate have vertical notches with outward openings on their side edges. When the L-shaped noise reduction structure is installed, the vertical notches are enclosed with the building wall or air duct to form a vertical gap with an outward opening. By filling the vertical gap with sealant, the L-shaped noise reduction structure is sealed and fixed to the building wall or air duct.
7. The L-shaped noise reduction structure as described in claim 1, characterized in that: An inspection port is provided on the first or second plate.
8. The L-shaped noise reduction structure as described in claim 1, characterized in that: The noise reduction inner layer is a single-layer hollow board; or, the noise reduction inner layer is composed of multiple hollow boards stacked together.
9. The L-shaped noise reduction structure as described in claim 1, characterized in that: The left and right sides and / or top and bottom edges of the first and second plates are formed by curing slurry.
10. The L-shaped noise reduction structure as described in claim 3, characterized in that: The reinforcement is exposed on the left and right sides of the first plate and the second plate.