A soundproof partition for air ducts

Abstract

This utility model provides a soundproof partition for air ducts, comprising a partition body; a honeycomb noise reduction layer is provided inside the partition body, and a first sound insulation cotton layer and a second sound insulation cotton layer are respectively attached to both sides of the honeycomb noise reduction layer; a first protective plate and a second protective plate are respectively attached to the side of the first sound insulation cotton layer and the side away from the honeycomb noise reduction layer; a sealing frame is provided on the outer side of the partition body, and an installation groove is opened on the inner side of the sealing frame, with the edge of the partition body embedded in the installation groove; a plurality of air guide holes distributed in a rectangular array are opened on the surface of the first protective plate and the air guide holes on the second protective plate are staggered. By setting the honeycomb noise reduction layer, the sound insulation cotton layer and the protective plate inside the partition body, and providing a sealing frame on the outer perimeter, and the staggered air guide holes on the protective plate, the partition can absorb airflow friction noise, suppress airflow and resonance noise, and block the transmission of external noise, thereby improving the soundproofing effect of the partition.

Description

Technical Field

[0001] This utility model belongs to the field of soundproof partition technology, and more specifically, it relates to a soundproof partition for air ducts. Background Technology

[0002] A soundproof chamber is an enclosed space with professional sound insulation and sound absorption design. It provides users with a low-noise, undisturbed independent area in noisy environments (such as offices, shopping malls, and public places) to meet the needs of those who require a quiet environment. The soundproof chamber is equipped with an air duct that is responsible for ventilation inside and outside the chamber. The air duct has partitions that can separate the internal space of the air duct, regulate the airflow direction, and prevent the airflow from mixing directly between different areas. However, the partitions used in traditional air ducts are mostly single metal plates or ordinary boards, lacking professional sound absorption structures. They cannot absorb the noise generated by the friction of the airflow inside the air duct, which allows external noise to enter through the air duct. At the same time, the airflow noise and resonance noise generated by the air duct itself cannot be suppressed, thus affecting the use effect of the soundproof chamber. Utility Model Content

[0003] To address the aforementioned technical problems, this utility model provides a soundproof partition for air ducts, which solves the technical problem that in the prior art, the traditional partition structure in air ducts is simple, making it easy for external sound to enter and for resonance noise to be suppressed, thus affecting the performance of the soundproof chamber.

[0004] The purpose and effect of this utility model for a soundproof partition in an air duct are achieved by the following specific technical means: A soundproof partition for air ducts includes a partition body with a honeycomb noise reduction layer inside. A first sound-insulating cotton layer and a second sound-insulating cotton layer are respectively attached to both sides of the honeycomb noise reduction layer. A first protective plate and a second protective plate are respectively attached to the side of the first sound-insulating cotton layer and the side of the second sound-insulating cotton layer away from the honeycomb noise reduction layer. A sealing frame is provided on the outer side of the partition body, and an installation groove is opened on the inner side of the sealing frame. The edge of the partition body is embedded in the installation groove. A plurality of air guide holes distributed in a rectangular array are opened on the surface of the first protective plate and the air guide holes on the second protective plate are staggered.

[0005] The above technical solution further includes that the cellular noise reduction layer includes a frame and a plurality of cellular units, the plurality of cellular units being evenly distributed within the frame, and the two sides of the frame being fixed to the first sound insulation cotton layer and the second sound insulation cotton layer, respectively.

[0006] The above technical solution further includes that each of the honeycomb units is provided with a sound-absorbing cotton strip, the sound-absorbing cotton strip is attached to the inner wall of the honeycomb unit, and the length of the sound-absorbing cotton strip is consistent with the depth of the honeycomb unit.

[0007] The above technical solution further includes that multiple sets of positioning blocks are provided on the outer side of the sealing frame, the multiple sets of positioning blocks are evenly distributed along the outer edge of the sealing frame, and the positioning blocks are provided with threaded holes, the threaded holes penetrate the positioning blocks and extend into the sealing frame.

[0008] The above technical solution further includes that both the first protective plate and the second protective plate are made of aluminum alloy, and the side of the first protective plate and the second protective plate near the sealing frame is in contact with the inner wall of the mounting groove of the sealing frame.

[0009] The above technical solution further includes that an elastic sealing gasket is provided inside the mounting groove of the sealing frame, the inner side of the elastic sealing gasket is respectively attached to the partition body and the inner side of the mounting groove, and the other side of the elastic sealing gasket is in contact with the sealing frame.

[0010] The above technical solution further includes that the first sound insulation cotton layer and the second sound insulation cotton layer are both made of centrifugal glass wool, the first sound insulation cotton layer is bonded to the first protective plate and the honeycomb noise reduction layer by sound insulation adhesive, and the second sound insulation cotton layer is bonded to the second protective plate and the honeycomb noise reduction layer by sound insulation adhesive.

[0011] Compared with the prior art, the present invention has the following beneficial effects: 1. By setting a honeycomb noise reduction layer inside the partition body, and attaching a first sound insulation cotton layer and a second sound insulation cotton layer to both sides of the honeycomb noise reduction layer respectively, and opening a number of air guide holes arranged in a rectangular array and staggered on the surface of the first protective plate and the second protective plate, the noise generated by the friction of the airflow in the air duct can be absorbed, external noise can be blocked from entering through the air duct, and the airflow noise and resonance noise generated by the air duct itself can be suppressed. This solves the technical problem that the partition inside the air duct cannot handle noise and thus affects the use effect of the soundproof chamber, ensuring that the soundproof chamber maintains a low-noise and undisturbed use environment.

[0012] 2. A sealing frame is provided around the outer perimeter of the partition body, and an installation groove is opened on the inner side of the sealing frame. The edge of the partition body is embedded in the installation groove, and an elastic sealing gasket is provided on the inner side of the installation groove to enhance the sealing between the partition and the air duct and prevent noise leakage from the gaps. Multiple sets of positioning blocks with threaded holes are provided on the outer side of the sealing frame to facilitate the positioning and installation of the partition in the air duct. The first and second protective plates are made of aluminum alloy, which can provide stable support for the partition body, prevent the partition from deforming due to airflow pressure, ensure stable airflow in the air duct, maintain the normal operation of the soundproof chamber air duct system, and improve the overall stability of the soundproof chamber. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the assembled structure of this utility model.

[0014] Figure 2 yes Figure 1 The first explosive structure diagram.

[0015] Figure 3 yes Figure 1 A schematic diagram of the second explosion structure.

[0016] Figure 4 This is a schematic diagram of the assembly structure of the partition body and the honeycomb noise reduction layer of this utility model.

[0017] In the diagram, the correspondence between component names and drawing numbers is as follows: 1. Partition body; 2. Honeycomb noise reduction layer; 3. Sealing frame; 101. First sound insulation cotton layer; 102. Second sound insulation cotton layer; 103. First protective plate; 104. Second protective plate; 201. Frame; 202. Honeycomb unit; 301. Sound-absorbing cotton strip; 401. Positioning block; 601. Elastic sealing gasket. Detailed Implementation

[0018] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate the technical solution of this utility model, but should not be used to limit the scope of protection of this utility model.

[0019] Example:

[0020] like Figures 1 to 4 As shown, this utility model provides a soundproof partition for air ducts, including a partition body 1. A honeycomb noise reduction layer 2 is provided inside the partition body 1. A first sound-insulating cotton layer 101 and a second sound-insulating cotton layer 102 are respectively attached to both sides of the honeycomb noise reduction layer 2. A first protective plate 103 and a second protective plate 104 are respectively attached to the sides of the first and second sound-insulating cotton layers 101 and 102 away from the honeycomb noise reduction layer 2. A sealing frame 3 is provided on the outer side of the partition body 1, and an installation groove is opened on the inner side of the sealing frame 3. The edge of the partition body 1 is embedded in the installation groove. A plurality of air guide holes distributed in a rectangular array are opened on the surfaces of the first and second protective plates 103 and 104, and the air guide holes on the first and second protective plates 103 are staggered. The honeycomb noise reduction layer 2, together with the first and second sound-insulating cotton layers 101 and 102, forms a multi-layer noise reduction structure. The honeycomb noise reduction layer 2 can disperse and weaken noise energy by utilizing its own structural characteristics. The first sound insulation cotton layer 101 and the second sound insulation cotton layer 102 can further absorb noise. The combination of the two can improve the ability to handle noise in the air duct, reduce the noise generated by airflow friction, and at the same time block external noise from entering through the air duct, ensuring the quietness of the internal environment of the soundproof chamber and meeting the low noise requirements of the soundproof chamber.

[0021] The first protective plate 103 and the second protective plate 104 are respectively attached to the outer sides of the first sound insulation cotton layer 101 and the second sound insulation cotton layer 102, which can protect the internal honeycomb noise reduction layer 2, the first sound insulation cotton layer 101, and the second sound insulation cotton layer 102, preventing these structures from being damaged or deformed under the impact of airflow in the duct. At the same time, the air guide holes on the surfaces of both plates can guide the airflow to flow in an orderly manner in the duct, and the staggered arrangement of the air guide holes can change the airflow direction, reduce the noise generated by the airflow directly impacting the duct wall, maintain the stability of airflow delivery, and ensure that the ventilation function of the duct is normal.

[0022] An installation groove is formed on the inner side of the sealing frame 3, and the edge of the partition body 1 is embedded in it, which can achieve a tight connection between the partition body 1 and the sealing frame 3, reducing the gap between the two. This connection method can prevent noise from leaking out of the gaps, and at the same time prevent airflow from short-circuiting through the gaps, ensuring that the airflow passes through the air guide holes and improving the ventilation efficiency of the air duct. The setting of the sealing frame 3 can also enhance the overall structural integrity of the entire silent partition, making the partition more stable during installation and use, and less prone to loosening.

[0023] In the overall structure, each component has a clear division of labor and works in concert. The honeycomb noise reduction layer 2, the first sound insulation cotton layer 101, and the second sound insulation cotton layer 102 are responsible for core noise reduction, while the first protective plate 103 and the second protective plate 104 provide protection and airflow guidance. The sealing frame 3 ensures sealing and structural stability. The collaborative work of each component not only solves the noise problem within the air duct but also ensures the ventilation effect of the air duct, while improving the structural strength and installation stability of the partition itself. This allows the soundproof partition to function stably and continuously within the air duct, meeting the usage requirements of the soundproof chamber.

[0024] like Figures 2 to 4 As shown, the honeycomb noise reduction layer 2 includes a frame 201 and a plurality of honeycomb units 202. The plurality of honeycomb units 202 are evenly distributed within the frame 201, and the two sides of the frame 201 are respectively fixed to the first sound insulation cotton layer 101 and the second sound insulation cotton layer 102. The frame 201 provides an installation carrier for the plurality of honeycomb units 202, ensuring that the honeycomb units 202 are evenly distributed in the set position, avoiding displacement or stacking of the honeycomb units 202, ensuring the regularity of the overall structure of the honeycomb noise reduction layer 2, and providing a basis for subsequent bonding with the first sound insulation cotton layer 101 and the second sound insulation cotton layer 102; while the two sides of the frame 201 are fixed to the first sound insulation cotton layer 101 and the second sound insulation cotton layer 102 respectively, so that the honeycomb noise reduction layer 2 and the two sound insulation cotton layers form a stable connection, reducing gaps between the layers, avoiding the decrease in noise reduction effect due to loosening between layers, and improving the overall integrity of the internal structure of the partition body 1.

[0025] The evenly distributed honeycomb units 202 can increase the contact area with noise. Through the characteristics of the honeycomb structure, the noise energy is dispersed and consumed, enhancing the noise reduction capability of the honeycomb noise reduction layer 2. Together with the first sound insulation cotton layer 101 and the second sound insulation cotton layer 102, the noise treatment effect of the entire soundproof partition is further improved.

[0026] Each honeycomb unit 202 is equipped with a sound-absorbing cotton strip 301. The sound-absorbing cotton strip 301 is attached to the inner wall of the honeycomb unit 202, and its length is consistent with the depth of the honeycomb unit 202. The sound-absorbing cotton strip 301 is attached to the inner wall of the honeycomb unit 202, which can fully fill the internal space of the honeycomb unit 202, avoiding gaps in the honeycomb unit 202 that would cause noise to leak through, and improving the noise absorption efficiency of the honeycomb unit 202. The length of the sound-absorbing cotton strip 301 is consistent with the depth of the honeycomb unit 202, ensuring that the sound-absorbing cotton strip 301 can cover the entire depth direction of the honeycomb unit 202, so that the noise is in contact with the sound-absorbing cotton strip 301 throughout the propagation of the honeycomb unit 202, maximizing the absorption of noise energy. The presence of a sound-absorbing cotton strip 301 in each honeycomb unit 202 gives all honeycomb units 202 independent sound absorption capabilities, ensuring the overall sound absorption effect of the honeycomb noise reduction layer 2 is uniform, and avoiding weak local noise reduction areas from affecting the overall noise reduction performance.

[0027] like Figures 1 to 3 As shown, multiple sets of positioning blocks 401 are provided on the outer side of the sealing frame 3. These positioning blocks 401 are evenly distributed along the outer edge of the sealing frame 3, and each positioning block 401 has a threaded hole that penetrates the positioning block 401 and extends into the sealing frame 3. The threaded holes in the positioning blocks 401 allow for the fixing of the sealing frame 3 to the inner wall of the duct using bolts or other connecting parts, ensuring stable installation of the soundproof partition within the duct and preventing displacement of the partition under airflow impact. The even distribution of multiple positioning blocks 401 along the direction of the sealing frame 3 ensures balanced force distribution across all parts of the sealing frame 3, reducing deformation caused by uneven force after installation and guaranteeing a good fit between the sealing frame 3 and the inner wall of the duct, maintaining a sealing effect. The positioning blocks 401 provide an installation positioning reference for the sealing frame 3, facilitating quick determination of the partition's position within the duct during installation, reducing installation deviations, improving installation efficiency, and ensuring consistency when multiple partitions are installed within the duct, thus guaranteeing the overall ventilation and noise reduction effect of the duct.

[0028] Both the first protective plate 103 and the second protective plate 104 are made of aluminum alloy, and the side of the first protective plate 103 and the second protective plate 104 closest to the sealing frame 3 is in contact with the inner wall of the mounting groove of the sealing frame 3. The aluminum alloy material provides structural strength for the first protective plate 103 and the second protective plate 104, which can withstand the long-term impact of airflow in the duct, avoid deformation or damage to the protective plate, extend the service life of the protective plate, and at the same time maintain the protective function of the protective plate for the internal sound insulation and noise reduction structure. The side of the first protective plate 103 and the second protective plate 104 closest to the sealing frame 3, in contact with the inner wall of the mounting groove, can fill the gap between the protective plate and the sealing frame 3, reduce noise leakage from the gap, and prevent airflow from short-circuiting through the gap, ensuring that the airflow flows along the set path and ensuring the ventilation efficiency of the duct. The aluminum alloy material is lightweight and will not increase the overall weight of the partition body 1, which is convenient for the transportation and installation of the silent partition. At the same time, the aluminum alloy has good corrosion resistance and can adapt to the humid or dusty environment in the duct, avoiding the protective plate from being affected by corrosion.

[0029] like Figures 2 to 3 As shown, an elastic sealing gasket 601 is provided inside the mounting groove of the sealing frame 3. The inner side of the elastic sealing gasket 601 is in contact with both the partition body 1 and the inner side of the mounting groove, while the other side of the elastic sealing gasket 601 is in contact with the sealing frame 3. The inner side of the elastic sealing gasket 601, in contact with the partition body 1 and the inner side of the mounting groove, can fill the tiny gaps between the three, preventing noise from penetrating through the gaps and improving the sound insulation effect at the connection between the sealing frame 3 and the partition body 1. The other side of the elastic sealing gasket 601, in contact with the sealing frame 3, can slow down the vibration transmission between the partition body 1 and the sealing frame 3, reduce the additional noise caused by vibration, and ensure the overall noise reduction performance of the silent partition. The elastic sealing gasket 601 is elastic and can adapt to slight dimensional deviations during installation or use, maintaining a stable fit and preventing the sealing and sound insulation effects from decreasing due to increased gaps after long-term use.

[0030] Both the first sound insulation layer 101 and the second sound insulation layer 102 are made of centrifugal glass wool. The first sound insulation layer 101 is bonded to the first protective plate 103 and the honeycomb noise reduction layer 2 with sound insulation adhesive, and the second sound insulation layer 102 is bonded to the second protective plate 104 and the honeycomb noise reduction layer 2 with sound insulation adhesive. The centrifugal glass wool material has a porous structure, which can absorb the noise generated by the airflow in the duct, providing the core sound insulation capability for the first sound insulation layer 101 and the second sound insulation layer 102, helping the silent partition to achieve the noise reduction effect and meeting the requirements of the silent chamber for a low-noise environment. The sound insulation adhesive bonds the first sound insulation layer 101 to the first protective plate 103 and the honeycomb noise reduction layer 2 respectively, and bonds the second sound insulation layer 102 to the second protective plate 104 and the honeycomb noise reduction layer 2 respectively, which can eliminate the gaps between the layers, prevent noise from penetrating through the gaps between the layers, and at the same time enhance the connection stability of the internal structure of the partition body 1, preventing the layers from separating.

[0031] The sound-insulating adhesive itself has sound-insulating properties. While achieving bonding and fixing, it can further enhance the sound insulation effect. Combined with the sound-insulating cotton layer of centrifugal glass wool, it forms a double sound insulation guarantee, improves the noise handling capability of the entire soundproof partition, and reduces the impact of noise on the use effect of the soundproof chamber.

[0032] The above description is merely an embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A soundproof partition for air ducts, comprising a partition body (1), characterized in that: The partition body (1) is provided with a honeycomb noise reduction layer (2). A first sound insulation cotton layer (101) and a second sound insulation cotton layer (102) are respectively attached to both sides of the honeycomb noise reduction layer (2). A first protective plate (103) and a second protective plate (104) are respectively attached to the side of the first sound insulation cotton layer (101) and the second sound insulation cotton layer (102) away from the honeycomb noise reduction layer (2). A sealing frame (3) is provided on the outside of the partition body (1). An installation groove is opened on the inside of the sealing frame (3). The edge of the partition body (1) is embedded in the installation groove. A plurality of air guide holes distributed in a rectangular array are opened on the surface of the first protective plate (103) and the second protective plate (104). The air guide holes on the first protective plate (103) and the air guide holes on the second protective plate (104) are misaligned.

2. The soundproof partition for air ducts according to claim 1, characterized in that: The honeycomb noise reduction layer (2) includes a frame (201) and a plurality of honeycomb units (202). The plurality of honeycomb units (202) are evenly distributed in the frame (201), and the two sides of the frame (201) are fixed to the first sound insulation cotton layer (101) and the second sound insulation cotton layer (102) respectively.

3. A soundproof partition for air ducts according to claim 2, characterized in that: Each of the honeycomb units (202) is provided with a sound-absorbing cotton strip (301), which is attached to the inner wall of the honeycomb unit (202), and the length of the sound-absorbing cotton strip (301) is consistent with the depth of the honeycomb unit (202).

4. A soundproof partition for air ducts according to claim 1, characterized in that: Multiple sets of positioning blocks (401) are provided on the outer side of the sealing frame (3). The multiple sets of positioning blocks (401) are evenly distributed along the outer edge of the sealing frame (3). The positioning blocks (401) are provided with threaded holes. The threaded holes penetrate the positioning blocks (401) and extend into the sealing frame (3).

5. A soundproof partition for air ducts according to claim 4, characterized in that: Both the first protective plate (103) and the second protective plate (104) are made of aluminum alloy, and the side of the first protective plate (103) and the second protective plate (104) close to the sealing frame (3) is in contact with the inner wall of the mounting groove of the sealing frame (3).

6. A soundproof partition for air ducts according to claim 1, characterized in that: The inner side of the mounting groove of the sealing frame (3) is provided with an elastic sealing gasket (601). The inner side of the elastic sealing gasket (601) is respectively attached to the partition body (1) and the inner side of the mounting groove, and the other side of the elastic sealing gasket (601) is in contact with the sealing frame (3).

7. A soundproof partition for air ducts according to claim 6, characterized in that: The first sound insulation cotton layer (101) and the second sound insulation cotton layer (102) are both made of centrifugal glass wool. The first sound insulation cotton layer (101) is bonded to the first protective plate (103) and the honeycomb noise reduction layer (2) by sound insulation adhesive. The second sound insulation cotton layer (102) is bonded to the second protective plate (104) and the honeycomb noise reduction layer (2) by sound insulation adhesive.

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