Soundproofing shutter and soundproofing shutter window
By designing a double-layered soundproof louver, combined with sound-absorbing materials and fireproof and waterproof fabric, the problems of poor sound insulation and insufficient fire resistance of traditional louvers are solved, achieving a comprehensive effect of efficient sound insulation and fire resistance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- MEITU (FUJIAN) ALUMINUM CO LTD
- Filing Date
- 2025-06-06
- Publication Date
- 2026-06-26
AI Technical Summary
Traditional louvered blinds have poor sound insulation and lack fire-retardant properties, failing to meet the noise control and fire safety requirements of factories and workshops.
Design a soundproof louver with a double-layer structure consisting of upper and lower blades. Fill it with sound-absorbing material and set sound-absorbing holes on the lower blade. Combine it with fireproof and waterproof cloth to form a multi-layer soundproof louver. Optimize sound wave transmission and drainage through a bent channel structure.
It significantly improves sound insulation, enhances fire and heat insulation performance, ensures that the sound-absorbing material is not damaged by water, and also has drainage function, meeting the noise control and safety requirements of factories and workshops.
Smart Images

Figure CN224413488U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of window profile technology, and in particular to a soundproof louver and a soundproof louver window. Background Technology
[0002] Venetian blinds are a type of structure installed on buildings for ventilation and shading. They are commonly used in office buildings and residential buildings, as well as in factory and workshop buildings. Since factories and workshops generate a lot of noise during production, the venetian blinds used in them generally have a certain sound insulation function. Factories and workshops are high-risk areas for fire accidents. Current venetian blinds have a simple structure, and the single slats provide poor sound insulation and do not have fire-retardant properties. Utility Model Content
[0003] This utility model discloses a soundproof louver and a soundproof louver window, which mainly solves the problems of poor sound insulation effect and lack of fireproof and flame-retardant function of traditional louvers.
[0004] To achieve the aforementioned objective, the technical solution of this utility model is implemented as follows:
[0005] In a first aspect, this utility model provides a soundproof louver, comprising an upper blade and a lower blade arranged in parallel and a sound-absorbing material filled between the upper blade and the lower blade. A fireproof and waterproof cloth is provided between the sound-absorbing material and the lower blade. The two ends of the upper blade and the lower blade are connected to each other, and a plurality of sound-absorbing holes are penetrating the lower blade.
[0006] In one embodiment, the lower blade includes a first lower inclined plate, a second lower inclined plate, a third lower inclined plate, and a fourth lower inclined plate connected in sequence, with the ends of the first lower inclined plate and the fourth lower inclined plate respectively connected to the two ends of the upper blade.
[0007] In one embodiment, the lower blade includes a first lower vertical plate, the two ends of which are respectively connected to the two ends of the upper blade.
[0008] In one embodiment, the upper blade includes a first upper vertical plate and a second upper vertical plate, with a first upper bending plate connecting the first upper vertical plate and the second upper vertical plate. The ends of the first upper vertical plate and the second upper vertical plate away from the first upper bending plate are respectively connected to the ends of the first lower inclined plate and the fourth lower inclined plate. The first upper bending plate includes a first upper inclined plate, a second upper inclined plate, a third upper inclined plate, and a fourth upper inclined plate connected in sequence. The first upper inclined plate is parallel to the first lower inclined plate, the second upper inclined plate is parallel to the second lower inclined plate, the third upper inclined plate is parallel to the third lower inclined plate, and the fourth upper inclined plate is parallel to the fourth lower inclined plate, so that the upper blade, the lower blade, the sound-absorbing material, and the fireproof and waterproof cloth constitute a first soundproof louver.
[0009] In one embodiment, the upper blade includes a third upper vertical plate and a fourth upper vertical plate, with a first upper horizontal plate connecting the third upper vertical plate and the fourth upper vertical plate. The ends of the third upper vertical plate and the fourth upper vertical plate away from the first upper horizontal plate are respectively connected to the ends of the first lower inclined plate and the fourth lower inclined plate, so that the upper blade, the lower blade, the sound-absorbing material and the fireproof and waterproof cloth form a second soundproof louver.
[0010] In one embodiment, the upper blade includes a fifth upper vertical plate and a sixth upper vertical plate, with a second upper bent plate connecting the fifth and sixth upper vertical plates. The ends of the fifth and sixth upper vertical plates away from the second upper bent plate are respectively connected to the two ends of a first lower vertical plate. The second upper bent plate includes a second upper horizontal plate, a fifth upper inclined plate, a sixth upper inclined plate, a third upper horizontal plate, a seventh upper vertical plate, and a fourth upper horizontal plate connected in sequence, so that the upper blade, the lower blade, the sound-absorbing material, and the fireproof and waterproof cloth form a third soundproof louver.
[0011] In one embodiment, the upper blade has a first slot with its opening facing upward at both ends, and the lower blade has a second slot with its opening facing downward at both ends. The first slot and the second slot at the corresponding ends of the upper blade and the lower blade are inserted together.
[0012] In one embodiment, the sound-absorbing material is rock wool.
[0013] In one embodiment, the upper blade is made of a 2mm thick aluminum plate, and the lower blade is made of a 0.8mm thick aluminum plate.
[0014] The advantages or beneficial effects of the above technical solution include at least the following: the double-layer structure composed of upper and lower blades can greatly increase the sound loss when the sound is transmitted in the soundproof louver, thus achieving the sound insulation effect; the sound-absorbing material filled in the soundproof louver can absorb the sound entering the upper and lower blades, thereby further improving the sound insulation effect; the sound-absorbing holes set on the lower blade can further improve the sound penetration of the lower blade and reach the sound-absorbing material, thereby improving the quietness effect; the fireproof and waterproof cloth set in the soundproof louver can effectively improve the fireproof and heat insulation performance of the soundproof louver and prevent water from entering the sound-absorbing material through the sound-absorbing holes, thereby ensuring the sound absorption effect of the sound-absorbing material.
[0015] Secondly, this utility model provides a soundproof louver, comprising one or more of the following: a first soundproof louver, a second soundproof louver, or a third soundproof louver, composed of the aforementioned upper blade, lower blade, sound-absorbing material, and fireproof and waterproof fabric. Symmetrically arranged window frames are installed at both ends of the first soundproof louver, the second soundproof louver, or the third soundproof louver. A first bending channel is formed between the first soundproof louver and between the first soundproof louver and the second soundproof louver. A second bending channel is formed between the first soundproof louver and the third soundproof louver.
[0016] The first bent channel includes a first inclined channel, a second inclined channel and a third inclined channel. The lower sidewall of the first inclined channel is connected to one end of the second inclined channel and the other end is connected to one end of the third inclined channel. The height of the second inclined channel is less than the height of the third inclined channel.
[0017] The second bending channel includes a fourth inclined channel and a fifth inclined channel, wherein the lower sidewall of the fourth inclined channel is connected to one end of the fifth inclined channel;
[0018] The first inclined channel is parallel to the fourth inclined channel, and the second, third, and fifth inclined channels are parallel to each other.
[0019] The advantages or beneficial effects of the above technical solution include at least the following: with the cooperation of the first soundproof louver, the second soundproof louver and the third soundproof louver, a first bending channel and a second bending channel are formed on the soundproof louver window. With the structural arrangement of the first bending channel and the second bending channel, the lower blades of the first soundproof louver, the second soundproof louver and the third soundproof louver can fully contact the sound, thereby further improving the sound insulation and sound absorption effect. In addition, the first bending channel and the second bending channel can also play a role in drainage. Attached Figure Description
[0020] The accompanying drawings illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the principles of the present invention. These drawings are included to provide a further understanding of the present invention and are incorporated in and constitute a part of this specification.
[0021] Figure 1 A schematic diagram of the first sound-insulating louver of this utility model is shown;
[0022] Figure 2 A schematic diagram of the upper blade of the first sound-insulating louver of this utility model is shown;
[0023] Figure 3 A schematic diagram of the lower blades of the second and third sound-insulating louvers of this utility model is shown.
[0024] Figure 4 A schematic diagram of the second sound-insulating louver of this utility model is shown;
[0025] Figure 5 A schematic diagram of the third sound-insulating louver of this utility model is shown;
[0026] Figure 6 A schematic diagram of the soundproof louver of this utility model is shown;
[0027] Figure 7 This utility model is shown Figure 6 A cross-sectional schematic diagram;
[0028] Figure 8 This utility model is shown Figure 7 A partial schematic diagram;
[0029] Figure 9 This utility model is shown Figure 7 Another partial schematic diagram.
[0030] Explanation of reference numerals in the attached figures:
[0031] 1. Upper blade;
[0032] 11. First upper vertical plate; 12. Second upper vertical plate; 13. First upper bent plate; 131. First upper inclined plate; 132. Second upper inclined plate; 133. Third upper inclined plate; 134. Fourth upper inclined plate; 14. Third upper vertical plate; 15. Fourth upper vertical plate; 16. First upper horizontal plate; 17. Fifth upper vertical plate;
[0033] 18. Sixth vertical plate; 19. Second curved plate; 191. Second horizontal plate; 192. Fifth sloping plate; 193. Sixth sloping plate; 194. Third horizontal plate; 195. Seventh vertical plate; 196. Fourth horizontal plate;
[0034] 2. Lower blade;
[0035] 21. Sound-absorbing hole; 22. First lower inclined plate; 23. Second lower inclined plate; 24. Third lower inclined plate; 25. Fourth lower inclined plate; 26. First lower vertical plate;
[0036] 3. Sound-absorbing materials;
[0037] 4. Fireproof and waterproof fabric;
[0038] 5. First card slot;
[0039] 6. Second card slot;
[0040] 7. Window frame;
[0041] 8. First bend in the passageway;
[0042] 81. First inclined channel; 82. Second inclined channel; 83. Third inclined channel;
[0043] 9. Second bend in the passageway;
[0044] 91. Fourth inclined channel; 92. Fifth inclined channel. Detailed Implementation
[0045] Embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While some embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the present invention. It should be understood that the accompanying drawings and embodiments of the present invention are for illustrative purposes only and are not intended to limit the scope of protection of the present invention.
[0046] It should be noted that, where there is no conflict, the embodiments and features described in these embodiments can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0047] The term "comprising" and its variations as used herein are open-ended, meaning "including but not limited to". The term "based on" means "at least partially based on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments". Definitions of other terms will be given in the following description. It should be noted that the concepts of "first", "second", etc., mentioned in this utility model are only used to distinguish different devices, modules, or units, and are not used to limit the order of functions performed by these devices, modules, or units or their interdependencies.
[0048] It should be noted that the terms "a" and "a plurality of" used in this utility model are illustrative rather than restrictive. Those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".
[0049] The names of the messages or information exchanged between the multiple devices in this embodiment of the invention are for illustrative purposes only and are not intended to limit the scope of these messages or information.
[0050] Example 1
[0051] See Figure 1 , Figure 4 and Figure 5This utility model provides a soundproof louver, comprising an upper blade 1 and a lower blade 2 arranged in parallel, and a sound-absorbing material 3 filled between the upper blade 1 and the lower blade 2. A fireproof and waterproof cloth 4 is provided between the sound-absorbing material 3 and the lower blade 2. The two ends of the upper blade 1 and the lower blade 2 are connected to each other, and multiple sound-absorbing holes 21 penetrate the lower blade 2. The two ends of the upper blade 1 and the lower blade 2 can be connected in a non-rigid manner or in a rigid manner. Specifically, the rigid connection can be a screw, bolt, or welding connection. The sound-absorbing material 3 can be rock wool for absorbing sound waves. The upper blade 1 can be made of 2mm thick aluminum plate, which has a better sound insulation effect and can effectively block sound waves from penetrating the soundproof outer panel. The lower blade 2 can be made of 0.8mm thick aluminum plate, which facilitates the passage of sound waves through the lower blade 2 and to the sound-absorbing material 3.
[0052] The above-described structure, consisting of an upper blade 1 and a lower blade 2, greatly increases the sound loss during transmission within the soundproof louver, thus achieving a sound insulation effect. The sound-absorbing material 3 filled in the soundproof louver absorbs sound entering the upper blade 1 and lower blade 2, further enhancing the sound insulation effect. The sound-absorbing holes 21 on the lower blade 2 further improve sound penetration and reach the sound-absorbing material 3, thereby improving the noise reduction effect. The fireproof and waterproof cloth 4 installed in the soundproof louver effectively improves the fireproof and heat insulation performance of the soundproof louver and prevents water from entering the sound-absorbing material 3 through the sound-absorbing holes 21, ensuring the sound absorption effect of the sound-absorbing material 3.
[0053] In one embodiment, see Figure 1 , Figure 3 and Figure 7 The lower blade 2 includes a first lower inclined plate 22, a second lower inclined plate 23, a third lower inclined plate 24 and a fourth lower inclined plate 25 connected in sequence. The ends of the first lower inclined plate 22 and the fourth lower inclined plate 25 are respectively connected to the two ends of the upper blade 1.
[0054] The upper blade 1 includes a first upper vertical plate 11 and a second upper vertical plate 12. A first upper bending plate 13 is connected between the first upper vertical plate 11 and the second upper vertical plate 12. The ends of the first upper vertical plate 11 and the second upper vertical plate 12 away from the first upper bending plate 13 are respectively connected to the corresponding ends of the first lower inclined plate 22 and the fourth lower inclined plate 25. The first upper bending plate 13 includes a first upper inclined plate 131, a second upper inclined plate 132, a third upper inclined plate 133 and a fourth upper inclined plate 134 connected in sequence. The first upper inclined plate 131 is parallel to the first lower inclined plate 22, the second upper inclined plate 132 is parallel to the second lower inclined plate 23, the third upper inclined plate 133 is parallel to the third lower inclined plate 24, and the fourth upper inclined plate 134 is parallel to the fourth lower inclined plate 25, so that the upper blade 1, the lower blade 2, the sound-absorbing material 3 and the fireproof and waterproof cloth 4 form the first soundproof louver. In practical applications, the structure of the upper blade 1 and the lower blade 2 of the first soundproof louver can increase the length of the ventilation channel between the upper blade 1 of the first soundproof louver and the lower blade 2 of the adjacent first soundproof louver, thereby increasing the contact area between the sound and the lower blade 2, thus increasing the sound absorption and further enhancing the sound insulation effect; the structure of the first upper inclined plate 131, the second upper inclined plate 132, the third upper inclined plate 133 and the fourth upper inclined plate 134 of the first upper bending plate 13 can realize the drainage function.
[0055] The upper blade 1 includes a third upper vertical plate 14 and a fourth upper vertical plate 15. A first upper horizontal plate 16 connects the third upper vertical plate 14 and the fourth upper vertical plate 15. The ends of the third upper vertical plate 14 and the fourth upper vertical plate 15 away from the first upper horizontal plate 16 are respectively connected to the corresponding ends of the first lower inclined plate 22 and the fourth lower inclined plate 25, so that the upper blade 1, the lower blade 2, the sound-absorbing material 3, and the fireproof and waterproof cloth 4 form a second soundproof louver. In practical applications, the structural cooperation of the upper blade 1 and the lower blade 2 of the second soundproof louver can increase the length of the ventilation channel between the upper blade 1 of the first soundproof louver and the lower blade 2 of the adjacent second soundproof louver, thereby increasing the contact area between sound and the lower blade 2, thus increasing the amount of sound absorption and further enhancing the sound insulation effect.
[0056] In one embodiment, see Figure 4 and Figure 7 The lower blade 2 includes a first lower vertical plate 26, the two ends of which are respectively connected to the two ends of the upper blade 1.
[0057] The upper blade 1 includes a fifth upper vertical plate 17 and a sixth upper vertical plate 18. A second upper bent plate 19 is connected between the fifth upper vertical plate 17 and the sixth upper vertical plate 18. The ends of the fifth upper vertical plate 17 and the sixth upper vertical plate 18 away from the second upper bent plate 19 are respectively connected to the two ends of the first lower vertical plate 26. The second upper bent plate 19 includes a second upper horizontal plate 191, a fifth upper inclined plate 192, a sixth upper inclined plate 193, a third upper horizontal plate 194, a seventh upper vertical plate 195, and a fourth upper horizontal plate 196 connected in sequence, so that the upper blade 1, the lower blade 2, the sound-absorbing material 3, and the fireproof and waterproof cloth 4 form a third soundproof louver. In practical applications, the structure of the upper blade 1 of the third soundproof louver increases the length of the ventilation channel between the upper blade 1 of the third soundproof louver and the lower blade 2 of the adjacent first soundproof louver, thereby increasing the contact area between sound and the lower blade 2 and thus increasing the absorption of sound, further enhancing the sound insulation effect. Furthermore, the structure of the lower blade 2 of the third soundproof louver allows sound to pass directly through the lower blade 2 and be absorbed by the sound-absorbing material 3, ensuring the sound insulation effect. The second upper horizontal plate 191, the fifth upper inclined plate 192, the sixth upper inclined plate 193, the third upper horizontal plate 194, the seventh upper vertical plate 195, and the fourth upper horizontal plate 196 of the second upper bent plate 19 enable drainage.
[0058] In one embodiment, see Figure 1 , Figure 2 and Figure 3 In order to achieve a non-rigid connection between the upper blade 1 and the lower blade 2, specifically, the upper blade 1 has an upward-facing first slot 5 at both ends, and the lower blade 2 has a downward-facing second slot 6 at both ends. The first slot 5 and the second slot 6 at the corresponding ends of the upper blade 1 and the lower blade 2 are inserted together.
[0059] Example 2
[0060] See Figures 1 to 9 This utility model provides a soundproof louver window, comprising one or more of the following: a first soundproof louver, a second soundproof louver, or a third soundproof louver, consisting of an upper blade 1, a lower blade 2, sound-absorbing material 3, and fireproof and waterproof fabric 4. Symmetrically arranged window frames 7 are installed at both ends of the first, second, or third soundproof louvers. First bending channels 8 are formed between the first and second soundproof louvers, and second bending channels 9 are formed between the first and third soundproof louvers. The upper blade 1 of the first, second, or third soundproof louvers can be directly and rigidly fixed to the window frame 7.
[0061] In one embodiment, see Figure 8and Figure 9 The first bent channel 8 includes a first inclined channel 81, a second inclined channel 82, and a third inclined channel 83. The lower sidewall of the first inclined channel 81 is connected to one end of the second inclined channel 82, and the other end is connected to one end of the third inclined channel 83. The height of the second inclined channel 82 is less than the height of the third inclined channel 83. Through the structural cooperation of the first inclined channel 81, the second inclined channel 82, and the third inclined channel 83 of the first bent channel 8, the function of drainage can be realized.
[0062] The second bend channel 9 includes a fourth inclined channel 91 and a fifth inclined channel 92. The lower side wall of the fourth inclined channel 91 is connected to one end of the fifth inclined channel 92. Through the structural cooperation of the fourth inclined channel 91 and the fifth inclined channel 92 of the second bend channel 9, the function of drainage can be realized.
[0063] The first inclined channel 81 is parallel to the fourth inclined channel 91, and the second inclined channel 82, the third inclined channel 83 and the fifth inclined channel 92 are parallel to each other.
[0064] Among them, such as Figure 6 and Figure 7 The soundproof louver shown can have multiple first soundproof louvers, with multiple first soundproof louvers positioned between second and third soundproof louvers. The second soundproof louvers are positioned at the top of the soundproof louver, and the third soundproof louvers are positioned at the bottom of the soundproof louver.
[0065] The first, second, and third soundproof louvers of the soundproof louver are not limited to the above-mentioned arrangement; multiple first, second, or third soundproof louvers can also be set individually; or a combination of at least one first soundproof louver and at least one second soundproof louver or at least one third soundproof louver can also be used; or a combination of at least one second soundproof louver and at least one third soundproof louver can also be used.
[0066] With the above structure, the first, second and third soundproof louvers work together to form a first bent channel 8 and a second bent channel 9 on the soundproof louver. The structure of the first bent channel 8 and the second bent channel 9 allows the lower blades 2 of the first, second and third soundproof louvers to fully contact the sound, thereby further improving the sound insulation and sound absorption effect. In addition, the first bent channel 8 and the second bent channel 9 can also serve the function of drainage.
[0067] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "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 utility model 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 utility model.
[0068] Those skilled in the art should understand that the above embodiments are merely for clearly illustrating the present invention and are not intended to limit the scope of the present invention. For those skilled in the art, other changes or modifications can be made based on the above-described invention, and these changes or modifications still fall within the scope of the present invention.
Claims
1. A soundproofing blind, characterized in that, It includes an upper blade and a lower blade arranged in parallel, and a sound-absorbing material filled between the upper blade and the lower blade. A fireproof and waterproof cloth is provided between the sound-absorbing material and the lower blade. The two ends of the upper blade and the lower blade are connected to each other, and multiple sound-absorbing holes are penetrating the lower blade.
2. The soundproof louver as described in claim 1, characterized in that, The lower blade includes a first lower inclined plate, a second lower inclined plate, a third lower inclined plate, and a fourth lower inclined plate connected in sequence. The ends of the first lower inclined plate and the fourth lower inclined plate are respectively connected to the two ends of the upper blade.
3. The soundproofing blind of claim 1, wherein The lower blade includes a first lower vertical plate, the two ends of which are respectively connected to the two ends of the upper blade.
4. The soundproof louver as described in claim 2, characterized in that, The upper blade includes a first upper vertical plate and a second upper vertical plate, with a first upper bending plate connecting the first upper vertical plate and the second upper vertical plate. The ends of the first upper vertical plate and the second upper vertical plate away from the first upper bending plate are respectively connected to the corresponding ends of the first lower inclined plate and the fourth lower inclined plate. The first upper bending plate includes a first upper inclined plate, a second upper inclined plate, a third upper inclined plate, and a fourth upper inclined plate connected in sequence. The first upper inclined plate is parallel to the first lower inclined plate, the second upper inclined plate is parallel to the second lower inclined plate, the third upper inclined plate is parallel to the third lower inclined plate, and the fourth upper inclined plate is parallel to the fourth lower inclined plate, so that the upper blade, the lower blade, the sound-absorbing material, and the fireproof and waterproof cloth constitute the first soundproof louver.
5. The soundproof louver as described in claim 2, characterized in that, The upper blade includes a third upper vertical plate and a fourth upper vertical plate, and a first upper horizontal plate is connected between the third upper vertical plate and the fourth upper vertical plate. The ends of the third upper vertical plate and the fourth upper vertical plate away from the first upper horizontal plate are respectively connected to the corresponding ends of the first lower inclined plate and the fourth lower inclined plate, so that the upper blade, the lower blade, the sound-absorbing material and the fireproof and waterproof cloth form a second soundproof louver.
6. The soundproof louver as described in claim 3, characterized in that, The upper blade includes a fifth upper vertical plate and a sixth upper vertical plate, and a second upper bent plate is connected between the fifth upper vertical plate and the sixth upper vertical plate. The ends of the fifth upper vertical plate and the sixth upper vertical plate away from the second upper bent plate are respectively connected to the two ends of the first lower vertical plate. The second upper bent plate includes a second upper horizontal plate, a fifth upper inclined plate, a sixth upper inclined plate, a third upper horizontal plate, a seventh upper vertical plate, and a fourth upper horizontal plate connected in sequence, so that the upper blade, the lower blade, the sound-absorbing material, and the fireproof and waterproof cloth form a third soundproof louver.
7. The soundproof louver as described in any one of claims 1-5, characterized in that, The upper blade has a first slot with its opening facing upward at both ends, and the lower blade has a second slot with its opening facing downward at both ends. The first slot and the second slot at the corresponding ends of the upper blade and the lower blade are inserted together.
8. The soundproof louver as described in any one of claims 1-5, characterized in that, The sound-absorbing material is rock wool.
9. The soundproof louver as described in any one of claims 1-5, characterized in that, The upper blade is made of 2mm thick aluminum plate, and the lower blade is made of 0.8mm thick aluminum plate.
10. A soundproof louver, characterized in that, The soundproof louver comprises one or more of the following: a first soundproof louver, a second soundproof louver, or a third soundproof louver, consisting of an upper blade, a lower blade, a sound-absorbing material, and a fireproof and waterproof cloth as described in any one of claims 1-9. Symmetrically arranged window frames are installed at both ends of the first soundproof louver, the second soundproof louver, or the third soundproof louver, so that a first bending channel is formed between the first soundproof louver and the first soundproof louver and the second soundproof louver, and a second bending channel is formed between the first soundproof louver and the third soundproof louver. The first bent channel includes a first inclined channel, a second inclined channel and a third inclined channel. The lower sidewall of the first inclined channel is connected to one end of the second inclined channel and the other end is connected to one end of the third inclined channel. The height of the second inclined channel is less than the height of the third inclined channel. The second bending channel includes a fourth inclined channel and a fifth inclined channel, wherein the lower sidewall of the fourth inclined channel is connected to one end of the fifth inclined channel; The first inclined channel is parallel to the fourth inclined channel, and the second, third, and fifth inclined channels are parallel to each other.