Sound insulation glass magnesium board

Abstract

The utility model relates to the technical field of building materials, in particular to a sound insulation glass magnesium board. Comprising a plate body, the plate body is provided with first cavities and second cavities, the first cavities and the second cavities are located on the two sides of the width direction of the plate body respectively, the first cavities are multiple in number in the length direction of the plate body, every two adjacent first cavities are partially overlapped, and the extending direction of the first cavities is inclined to the length direction of the plate body; a plurality of second cavities are formed in the length direction of the plate body, every two adjacent second cavities are partially overlapped, the extending direction of the second cavities is inclined to the length direction of the plate body, the first cavities and the second cavities are in one-to-one correspondence in the length direction of the plate body, first sound insulation filling bodies are arranged in the first cavities, and second sound insulation filling bodies are arranged in the second cavities. And a second sound insulation filling body is arranged in the second cavity. The sound insulation door is good in sound insulation effect.

Description

Technical Field

[0001] This utility model relates to the field of building materials technology, and in particular to a sound-insulating magnesium oxide board. Background Technology

[0002] Magnesium oxide board, also known as magnesium oxide board, is a lightweight building material made primarily of a cementitious material composed of magnesium oxide, magnesium chloride, and water, with the addition of appropriate reinforcing materials such as fiberglass mesh. Patent application number 202420357254.8 discloses a sound-insulating magnesium oxide board, comprising a hollow magnesium oxide board body. The hollow magnesium oxide board body has multiple cavities inside, with each cavity penetrating the front and rear ends of the hollow magnesium oxide board body. Rigid sound-insulating core materials are inserted into the interior of each cavity. The front and rear ends of the hollow magnesium oxide board body each have receiving grooves, and two sealing plates are embedded in each of the receiving grooves. The sealing plates are fixedly connected to the receiving grooves, and the inner surfaces of the two sealing plates each have multiple positioning grooves corresponding to the rigid sound-insulating core materials. The two ends of the rigid sound-insulating core materials are inserted into the corresponding positioning grooves. This utility model discloses a sound-insulating magnesium oxide board with a reasonable structure. By setting a rigid sound-insulating core material in the internal cavity of the hollow magnesium oxide board body, the sound insulation effect of the magnesium oxide board is enhanced. However, the rigid sound-insulating core material is set at intervals along the length of the hollow magnesium oxide board body, resulting in poor sound insulation effect between two adjacent rigid sound-insulating core materials. Utility Model Content

[0003] The purpose of this invention is to provide a sound-insulating magnesium oxide board in order to solve the above-mentioned problems.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a sound-insulating magnesium oxide board, including a board body, wherein a first cavity and a second cavity are provided on the board body and are respectively located on both sides of the width direction of the board body. The first cavity has multiple overlapping first cavities in the length direction of the board body, and the extension direction of the first cavity is inclined to the length direction of the board body. The second cavity has multiple overlapping second cavities in the length direction of the board body, and the extension direction of the second cavity is inclined to the length direction of the board body. The first cavity and the second cavity correspond one-to-one in the length direction of the board body. A first sound-insulating filler is provided in the first cavity, and a second sound-insulating filler is provided in the second cavity.

[0005] Preferably, the first cavity and the second cavity are symmetrical about the width of the plate.

[0006] Preferably, the angle between the extension direction of the first cavity and the length direction of the plate is 30°.

[0007] Compared with the prior art, the present invention has the following advantages: 1. The first cavity is provided with multiple adjacent first cavities partially overlapping in the length direction of the plate, and the extension direction of the first cavity is inclined to the length direction of the plate. The second cavity is provided with multiple adjacent second cavities partially overlapping in the length direction of the plate, and the extension direction of the second cavity is inclined to the length direction of the plate. The first cavity and the second cavity are respectively provided with a first sound insulation filler and a second sound insulation filler, which makes the sound insulation effect of the glass magnesium board of the present application better. 2. The first cavity and the second cavity are symmetrical about the width direction of the plate, and the angle between the extension direction of the first cavity and the length direction of the plate is 30°. Sound with a propagation direction parallel to the first cavity passes directly between the two adjacent first cavities and is difficult to pass directly between the two adjacent second cavities. Attached Figure Description

[0008] Figure 1 This is a structural diagram of a sound-insulating magnesium oxide board.

[0009] In the diagram: 1. Plate; 2. First cavity; 3. Second cavity; 4. First sound insulation filler; 5. Second sound insulation filler. Detailed Implementation

[0010] To make the utility model's objectives, features, and advantages more apparent and understandable, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0011] Detailed implementation method: combined with Figure 1As shown, a sound-insulating magnesium oxide board includes a board body 1. The board body 1 has a first cavity 2 and a second cavity 3, located on opposite sides of its width. Multiple first cavities 2 are arranged along the length of the board body 1, with adjacent first cavities partially overlapping. The extension direction of the first cavities 2 is inclined to the length direction of the board body 1. Preferably, the multiple first cavities 2 are evenly spaced along the length direction of the board body 1. Multiple second cavities 3 are arranged along the length of the board body 1, with adjacent second cavities partially overlapping. The extension direction of the second cavities 3 is inclined to the length direction of the board body 1. The first cavities 2 and the second cavities 3 correspond one-to-one along the length direction of the board body 1. A first sound-insulating filler 4 is disposed within the first cavity 2, and a second sound-insulating filler 5 is disposed within the second cavity 3. The first cavities 2 and the second cavities 3 do not penetrate either of the upper or lower ends of the board body 1 (they may have originally penetrated but were later sealed). The first sound-insulating filler 4 and the second sound-insulating filler 5 can be rock wool or other sound-insulating materials. Because the two adjacent first sound insulation fillers 4 overlap, the sound travels a longer distance between them and is lost more. Similarly, the two adjacent second sound insulation fillers 5 overlap, which also increases the sound travels a longer distance between them and is lost more. Therefore, the sound insulation effect is better.

[0012] Furthermore, the first cavity 2 and the second cavity 3 are symmetrical about the width of the plate 1. The surfaces of adjacent first cavities 2 are parallel to each other, and the surfaces of adjacent second cavities 3 are also parallel to each other. When sound enters the plate 1 from the outside, upon reaching the first cavity 2 (or second cavity 3), a portion enters the first cavity 2, most of which is absorbed by the absorbent material, while the remaining portion is reflected. The reflected sound will be reflected multiple times between the adjacent first cavities 2, and will be lost in the process. This loss is of two types: one is that a portion is lost with each reflection, and the other is lost while passing through the plate 1. When the sound enters between the adjacent second cavities 3, it will be lost again. To improve the sound insulation effect, the overlap between the adjacent first cavities 2 is maximized. Since the path between the adjacent first cavities 2 and the path between the adjacent second cavities 3 are not straight, sound propagating parallel to the first cavity 2, after passing directly between the adjacent first cavities 2 (without reflection), is unlikely to pass directly between the adjacent second cavities 3 (because reflection will occur).

[0013] Furthermore, the angle between the extension direction of the first cavity 2 and the length direction of the plate 1 is 30°, which makes the sound reflection angle smaller, allowing for more reflections and increasing sound loss. At this angle, the path between two adjacent first cavities 2 (or second cavities 3) is relatively long but not too long, giving the plate 1 higher strength.

[0014] The above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A sound-insulating magnesium oxide board, comprising a board body (1), characterized in that: The plate (1) is provided with a first cavity (2) and a second cavity (3) and the two are respectively located on both sides of the width direction of the plate (1). The first cavity (2) has multiple adjacent first cavities (2) partially overlapping in the length direction of the plate (1). The extension direction of the first cavity (2) is inclined to the length direction of the plate (1). The second cavity (3) has multiple adjacent second cavities (3) partially overlapping in the length direction of the plate (1). The extension direction of the second cavity (3) is inclined to the length direction of the plate (1). The first cavity (2) and the second cavity (3) correspond one-to-one in the length direction of the plate (1). The first cavity (2) is provided with a first sound insulation filler (4), and the second cavity (3) is provided with a second sound insulation filler (5).

2. The sound-insulating magnesium oxide board according to claim 1, characterized in that: The first cavity (2) and the second cavity (3) are symmetrical about the width of the plate (1).

3. A sound-insulating magnesium oxide board according to any one of claims 1-2, characterized in that: The angle between the extension direction of the first cavity (2) and the length direction of the plate (1) is 30°.

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