Ventilation shutter with noise reduction function

Abstract

The utility model discloses a ventilation louver with sound elimination and noise reduction function is installed in the cabin wall and is located in the cabin, including frame, even distribution has a plurality of middle plates in the frame, a plurality of middle plates are mutually parallelly arranged, the middle plate is inverted v type, the middle plate includes sound elimination layer, the sound elimination layer top side towards the cabin outside is equipped with the baffle, the sound elimination layer bottom both sides and sound elimination layer top side towards the cabin are equipped with the sound elimination board, even distribution has a plurality of sound elimination holes in the sound elimination board, the utility model discloses a ventilation louver with sound elimination and noise reduction function, and the middle plate is inverted v type setting, can make the propagation path zigzag of sound wave long, makes sound energy dispersion, thereby realizes the noise reduction, and cooperates sound elimination layer and sound elimination board, can absorb sound wave, further realizes sound elimination and noise reduction.

Description

Technical Field

[0001] This utility model relates to marine technology, specifically a ventilation louver with sound absorption and noise reduction function. Background Technology

[0002] Louvers are generally used on the air ducts of air conditioning and ventilation systems on various types of ships that require fire protection. They typically consist of a square frame and multiple evenly distributed blades. Their main functions include regulating airflow in the cabin, preventing water ingress, protecting equipment inside the cabin, providing natural ventilation, and allowing light to pass through.

[0003] However, existing blades are generally made of sheet metal, which cannot reduce noise. Utility Model Content

[0004] To address the shortcomings of the existing technology, this utility model provides a ventilation louver with noise reduction function, which can reduce noise.

[0005] To achieve the above technical objectives, the present invention adopts the following technical solution: a ventilation louver with sound absorption and noise reduction function, installed on the cabin wall and located inside the cabin, including a frame, wherein a plurality of intermediate plates are evenly distributed within the frame, the plurality of intermediate plates are arranged parallel to each other, the intermediate plates are inverted V-shaped, the intermediate plates include a sound absorption layer, a baffle is provided on the top side of the sound absorption layer facing outward, and sound absorption plates are provided on both sides of the bottom of the sound absorption layer and on the top side of the sound absorption layer facing inward, the sound absorption plates having a plurality of sound absorption holes evenly distributed.

[0006] Preferably, the top two sides of the frame are provided with top plates, the bottom of the top plates are inclined towards the middle of the frame, the sound-absorbing layer is provided in the middle of the top plate, the sound-absorbing plate is provided at the bottom of the top plate, and the baffle is provided at the top of the top plate and on the side facing outward.

[0007] Preferably, the bottom of the frame is provided with a base plate, the top of the base plate is inverted V-shaped, a gap is left between the bottom of the base plate and the bottom wall of the frame, the sound-absorbing layer is provided in the middle of the base plate, the sound-absorbing plate is provided on the side of the base plate facing the cabin, and the baffle is provided on the bottom of the base plate and the side facing the cabin.

[0008] Preferably, the bottom of the frame is provided with a water baffle on the side facing the interior of the cabin.

[0009] Preferably, the frame has two lugs at the top.

[0010] Preferably, the frame is provided with mounting plates on all four sides.

[0011] Preferably, both the sound-absorbing plate and the baffle are made of aluminum alloy.

[0012] Preferably, the sound-absorbing layer is covered with glass cloth on the outside, and the glass cloth is located between the sound-absorbing layer and the sound-absorbing plate.

[0013] Preferably, the sound-absorbing layer is an ultra-fine glass wool filler layer.

[0014] In summary, this utility model achieves the following technical effects:

[0015] The ventilation louver with sound absorption and noise reduction function of this utility model has an inverted V-shaped middle plate, which makes the sound wave propagation path more tortuous and longer, thus dispersing the sound energy and achieving noise reduction. In addition, in conjunction with the sound absorption layer and sound absorption plate, it can absorb sound waves and further achieve sound absorption and noise reduction. Attached Figure Description

[0016] Figure 1 This is a structural schematic diagram of the ventilation louver with sound absorption and noise reduction function of this utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the middle plate of the ventilation louver with sound absorption and noise reduction function of this utility model;

[0018] Figure 3 This is a schematic diagram of the top plate of the ventilation louver with sound absorption and noise reduction function of this utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the base plate of the ventilation louver with sound absorption and noise reduction function of this utility model;

[0020] Explanation of the markings in the attached drawings: 1. Frame; 2. Top plate; 3. Middle plate; 4. Bottom plate; 5. Water baffle; 6. Mounting base plate; 8. Lifting lug; 10. Baffle; 11. Sound-absorbing plate; 12. Fiberglass cloth; 13. Sound-absorbing layer. Detailed Implementation

[0021] The present invention will be further described in detail below with reference to the accompanying drawings.

[0022] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

[0023] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0024] 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 utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0025] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0027] Example 1:

[0028] like Figure 1As shown in Figure 2, a ventilation louver with sound absorption and noise reduction function is installed on the bulkhead and located inside the cabin. It includes a frame 1, and several intermediate plates 3 are evenly distributed inside the frame 1. The intermediate plates 3 are arranged parallel to each other and are inverted V-shaped. The intermediate plates 3 include a sound absorption layer 13. A baffle 10 is provided on the top side of the sound absorption layer 13 facing outward. Sound absorption plates 11 are provided on both sides of the bottom of the sound absorption layer 13 and on the top side of the sound absorption layer 13 facing inward. Several sound absorption holes are evenly distributed on the sound absorption plates 11.

[0029] In this embodiment, the ventilation louver with sound absorption and noise reduction function has an inverted V-shaped middle plate 3, which makes the sound wave propagation path more tortuous and longer, thus dispersing the sound energy and achieving noise reduction. In addition, in conjunction with the sound absorption layer 13 and the sound absorption plate 11, it can absorb sound waves and further achieve sound absorption and noise reduction.

[0030] like Figure 3 As shown, top plates 2 are provided on both sides of the top of the frame 1. The bottom of the top plate 2 is inclined toward the middle of the frame 1. The sound-absorbing layer 13 is provided in the middle of the top plate 2. The sound-absorbing plate 11 is provided at the bottom of the top plate 2. The baffle 10 is provided at the top of the top plate 2 and on the side facing outward.

[0031] like Figure 4 As shown, a bottom plate 4 is provided at the bottom of the frame 1. The top of the bottom plate 4 is inverted V-shaped. A gap is left between the bottom of the bottom plate 4 and the bottom wall of the frame 1. The sound-absorbing layer 13 is provided in the middle of the bottom plate 4. The sound-absorbing plate 11 is provided on the side of the bottom plate 4 facing the cabin. The baffle 10 is provided at the bottom of the bottom plate 4 and on the side facing the cabin.

[0032] The bottom of the frame 1 is provided with a water baffle 5 facing the inside of the cabin; the water baffle 5 can prevent rainwater and seawater from flowing into the cabin from the bottom of the frame 1.

[0033] The top of the frame 1 is provided with two lifting lugs 8; the lifting lugs 8 can facilitate the hoisting of the frame 1, thereby facilitating the installation of the frame 1 on the bulkhead.

[0034] The frame 1 is provided with mounting plates 6 on all four sides; the mounting plates 6 are welded to the inner side of the bulkhead, and the mounting plates 6 can be provided with screw holes, so that the frame 1 can be fixed to the bulkhead by screws or bolts.

[0035] Both the sound-absorbing plate 11 and the baffle 10 are made of aluminum alloy.

[0036] The sound-absorbing layer 13 is covered with a glass cloth 12, which is located between the sound-absorbing layer 13 and the sound-absorbing plate 11.

[0037] The sound-absorbing layer 13 is an ultra-fine glass wool filler layer.

[0038] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall fall within the scope of the technical solution of the present utility model.

Claims

1. A ventilating louver with sound-attenuating noise reduction function, installed in a bulkhead and located in a cabin, characterized in that, The system includes a frame, within which several intermediate plates are evenly distributed and arranged parallel to each other. Each intermediate plate is inverted V-shaped and includes a sound-absorbing layer. A baffle is provided on the top side of the sound-absorbing layer facing outwards from the cabin, and sound-absorbing plates are provided on both sides of the bottom of the sound-absorbing layer and on the top side of the sound-absorbing layer facing inwards from the cabin. Several sound-absorbing holes are evenly distributed on the sound-absorbing plates.

2. The ventilating louver with noise reduction function according to claim 1, characterized in that, The frame has top plates on both sides, with the bottom of the top plates inclined toward the middle of the frame. The sound-absorbing layer is located in the middle of the top plate, the sound-absorbing plate is located at the bottom of the top plate, and the baffle is located at the top of the top plate and on the side facing outwards.

3. The ventilating louver with noise reduction function according to claim 1, characterized in that, The bottom of the frame is provided with a base plate, the top of the base plate is inverted V-shaped, and there is a gap between the bottom of the base plate and the bottom wall of the frame. The sound-absorbing layer is provided in the middle of the base plate, the sound-absorbing plate is provided on the side of the base plate facing the cabin, and the baffle is provided on the bottom of the base plate and the side facing the cabin.

4. The ventilating louver with noise reduction function according to claim 3, characterized in that, The bottom of the frame is equipped with a water baffle on the side facing the interior of the cabin.

5. The louvered window with noise reduction function according to claim 1, characterized in that, The frame has two lugs at the top.

6. The louvered window with noise reduction function according to claim 1, characterized in that, Mounting plates are provided on all four sides of the frame.

7. The louvered window with noise reduction function according to claim 1, characterized in that, Both the sound-absorbing plate and the baffle are made of aluminum alloy.

8. The louvered window with noise reduction function according to claim 1, characterized in that, The sound-absorbing layer is covered with glass cloth on the outside, and the glass cloth is located between the sound-absorbing layer and the sound-absorbing plate.

9. The louvered window with noise reduction function according to claim 1, characterized in that, The sound-absorbing layer is an ultra-fine glass wool filler layer.

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