Multi-layer sound insulation structure of hollow sound insulation shielding window

Abstract

The utility model relates to the technical field of soundproof windows, in particular to a multilayer soundproof structure of a hollow soundproof shielding window, which comprises a frame, an outer glass plate, a middle glass plate and an inner glass plate are sequentially arranged in the frame from back to front, and a first hollow cavity is arranged between the outer glass plate and the middle glass plate. A second hollow cavity is formed between the middle glass plate and the inner glass plate, the opposite side faces of the outer glass plate and the inner glass plate are each provided with a flexible damping coating, and the front side and the rear side of the middle glass plate are each provided with a flexible damping coating. According to the multi-layer sound insulation structure of the hollow sound insulation shielding window, by means of the design that the multi-layer glass plate structure, the flexible damping coating and the hollow cavity are filled with inert gas, noise can be effectively blocked, the full-band sound insulation effect is achieved, and especially for low-frequency roars in traffic noise and medium-high-frequency sharp noise generated by industrial equipment, the sound insulation effect is good. The remarkable shielding capability is provided, and the requirement of modern buildings for high sound insulation performance is met.

Description

Technical Field

[0001] This utility model relates to the field of soundproof window technology, specifically to a multi-layer soundproof structure for hollow soundproof shielding windows. Background Technology

[0002] With rapid urbanization and industrial modernization, environmental noise pollution has become increasingly serious, posing a significant threat to residents' lives and health worldwide. Particularly in residential and office areas near major roads, high-speed railways, airports, and industrial zones, the continuous intrusion of environmental noise not only affects daily comfort but can also lead to sleep disorders, anxiety, cardiovascular diseases, and other health problems. Studies have shown that long-term exposure to noise levels exceeding 60 decibels can have a significant impact on human physical and mental health. Therefore, sound insulation technology has become particularly important in modern building design, with soundproof windows, as a crucial component of the building envelope, playing a key role in noise control.

[0003] Existing soundproof window technologies primarily employ single-pane, double-pane, or triple-pane insulated glass structures, enhancing sound insulation through airtight design. However, these traditional designs exhibit significant limitations when facing complex noise categories, such as low-frequency rumbling in traffic or mid-to-high-frequency sharp noise from industrial equipment. For instance, low-frequency noise, due to its longer wavelength, is more difficult to effectively shield and may propagate into the room; while high-frequency noise can leak through tiny sealing gaps, reducing sound insulation. Furthermore, the hollow cavity design of existing soundproof windows is relatively simple, typically filled with air or inert gas. While this reduces heat transfer to some extent, the improvement in sound insulation performance remains limited. Therefore, we propose a multi-layered soundproof structure for insulated soundproof windows. Utility Model Content

[0004] The purpose of this invention is to provide a multi-layer sound insulation structure for hollow soundproof windows to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] The multi-layer sound insulation structure of the hollow soundproof window includes a frame for supporting and fixing each glass panel to form the overall frame structure of the window, while providing installation positions for the three glass panels and achieving a sealing function. The frame is provided with an outer glass panel, a middle glass panel and an inner glass panel from back to front.

[0007] A first spacer frame is provided between the outer glass plate and the middle glass plate. The outer glass plate, the middle glass plate and the first spacer frame form a first hollow cavity. The first spacer frame is used to separate the outer glass plate and the middle glass plate to form a first hollow cavity, providing a closed space for the filling of inert gas, and effectively preventing the propagation of sound waves.

[0008] A second spacer frame is provided between the middle glass plate and the inner glass plate. The middle glass plate, the inner glass plate and the second spacer frame form a second hollow cavity. The second spacer frame is similar to the first spacer frame and is used to separate the middle glass plate and the inner glass plate to form a second hollow cavity, which further enhances the sound shielding effect.

[0009] Both the first and second hollow cavities are filled with inert gas, such as argon or sulfur hexafluoride, which can reduce the propagation speed of sound waves and reduce noise propagation. At the same time, it has a low thermal conductivity, which can improve the heat insulation performance of the window. The outer and inner glass panels are provided with flexible damping coatings on their opposite sides, and the middle glass panel is provided with flexible damping coatings on both the front and back sides. These coatings are used to absorb the vibration energy of sound waves, reduce the propagation efficiency of sound waves, and significantly improve the sound insulation performance of the glass.

[0010] Preferably, the inner wall of the frame is provided with a mounting groove, the rear side of the inner wall of the mounting groove is provided with a first groove, the front side of the inner wall of the mounting groove is provided with a third groove, and the inner wall of the mounting groove and located between the first groove and the third groove are provided with a second groove, so as to provide a stable mounting position for the glass plate.

[0011] Preferably, the outer glass plate, the middle glass plate, and the inner glass plate are located in the first groove, the second groove, and the third groove, respectively, to achieve structural stability and robustness.

[0012] Preferably, the inner walls of the first, second, and third grooves are all provided with frame-shaped sound-absorbing pads of suitable shape and size. The frame-shaped sound-absorbing pads are made of polyester fiber sound-absorbing cotton and are used to absorb multi-frequency noise and reduce the vibration and noise propagation of the frame.

[0013] Preferably, the inner walls of the three frame-shaped sound-absorbing pads are provided with frame-shaped rubber pads. The inner walls of the three frame-shaped rubber pads are tightly fitted to the outer walls of the outer glass plate, the middle glass plate, and the inner glass plate, respectively. The joints between the frame-shaped rubber pads and the outer glass plate are sealed with sealant, the joints between the frame-shaped rubber pads and the middle glass plate are sealed with sealant, and the joints between the frame-shaped rubber pads and the inner glass plate are sealed with sealant. The sealant achieves airtightness and watertightness, while absorbing vibrations between the glass plate and the frame, further improving the sound insulation effect.

[0014] Preferably, the outer glass layer has a thickness of 6-8mm and includes two tempered glass panels arranged symmetrically front to back. A transparent PVB film is provided between the two tempered glass panels. The tempered glass has high strength and impact resistance, while the transparent PVB film provides sound absorption and enhances the safety and explosion-proof performance of the glass.

[0015] Preferably, the thickness of the intermediate glass panel is 4-6mm, and the intermediate glass panel is low-emissivity glass to reduce indoor heat loss and improve sound insulation.

[0016] Preferably, the thickness of the inner glass layer is 6-8mm, and the inner glass layer comprises two float glass sheets arranged symmetrically front to back, with a polyurethane film between the two float glass sheets. The float glass has good light transmission performance, and the polyurethane film sandwiched between the two glass sheets can further absorb sound waves and reduce noise propagation.

[0017] Preferably, the front side of the float glass is provided with a sound-absorbing coating, which is a transparent polyurethane coating with a thickness of 0.1-0.3mm. This allows the inner glass plate to further absorb and attenuate sound waves, especially with a significant shielding effect on low-frequency noise, while ensuring mechanical strength and indoor safety.

[0018] Preferably, the thickness of the flexible damping coating is 0.5-1mm, and the flexible damping coating is a transparent polyurethane coating that covers the glass surface to absorb the vibration energy of sound waves, reduce the propagation efficiency of sound waves, significantly improve the sound insulation performance of the glass, and maintain transparency.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] 1. The multi-layer sound insulation structure of this hollow soundproof window utilizes a multi-layer glass panel structure, a flexible damping coating, and a hollow cavity filled with inert gas to effectively block noise and achieve sound insulation across the entire frequency band. It provides significant shielding capabilities, especially for low-frequency rumbling noise in traffic noise and mid-to-high-frequency sharp noise generated by industrial equipment, meeting the high sound insulation performance requirements of modern buildings.

[0021] 2. The multi-layered sound insulation structure of this hollow soundproof window, through the layered design of the outer glass panel, the middle glass panel and the inner glass panel, as well as the first hollow cavity and the second hollow cavity, effectively disperses and absorbs sound wave energy, reducing the propagation efficiency of sound waves.

[0022] 3. The multi-layer sound insulation structure of this hollow soundproof window has a transparent polyurethane flexible damping coating on the surface of the outer glass panel, the middle glass panel and the inner glass panel. Utilizing its excellent vibration absorption performance, it effectively absorbs and attenuates the vibration energy of sound waves, significantly reducing the transmission efficiency of noise.

[0023] 4. The multi-layered soundproof structure of this hollow soundproof window has a first groove, a second groove, and a third groove on the inner wall of the frame, and is equipped with a frame-shaped sound-absorbing pad and a frame-shaped rubber pad. The frame-shaped sound-absorbing pad is made of polyester fiber sound-absorbing cotton, which can effectively absorb the noise transmission caused by frame vibration. The frame-shaped rubber pad further improves the air tightness and water tightness through sealant, and at the same time absorbs the vibration between the glass plate and the frame, further improving the sound insulation performance. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0025] Figure 2 This is a schematic diagram of the overall cross-sectional structure of this utility model;

[0026] Figure 3 This is a schematic diagram of the overall exploded structure of this utility model;

[0027] Figure 4 This is a schematic diagram of the outer glass plate structure in this utility model;

[0028] Figure 5 This is a schematic diagram of the intermediate glass plate structure in this utility model;

[0029] Figure 6 This is a schematic diagram of the inner glass plate structure in this utility model;

[0030] In the diagram: 1. Frame; 10. First groove; 11. Second groove; 12. Third groove; 2. Outer glass plate; 20. Tempered glass; 21. Transparent PVB film; 3. Middle glass plate; 4. Inner glass plate; 40. Float glass; 41. Polyurethane film; 42. Sound-absorbing coating; 5. First spacer frame; 6. Second spacer frame; 7. Frame-shaped sound-absorbing pad; 8. Frame-shaped rubber pad; 9. Flexible damping coating; 13. First hollow cavity; 14. Second hollow cavity. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", 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 component 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.

[0033] Please see Figures 1-6 This utility model provides a technical solution:

[0034] The multi-layer sound insulation structure of the hollow soundproof window includes a frame 1, which is used to support and fix each glass panel to form the overall frame structure of the window, while providing installation positions for the three glass panels and achieving a sealing function. The frame 1 has an outer glass panel 2, a middle glass panel 3 and an inner glass panel 4 arranged from back to front.

[0035] A first spacer frame 5 is provided between the outer glass plate 2 and the middle glass plate 3. The outer glass plate 2, the middle glass plate 3 and the first spacer frame 5 form a first hollow cavity 13. The first spacer frame 5 is used to separate the outer glass plate 2 and the middle glass plate 3 to form a first hollow cavity 13, providing a closed space for the filling of inert gas, while effectively preventing the propagation of sound waves.

[0036] A second spacer frame 6 is provided between the middle glass plate 3 and the inner glass plate 4. The middle glass plate 3, the inner glass plate 4 and the second spacer frame 6 form a second hollow cavity 14. The second spacer frame 6 is similar to the first spacer frame 5 and is used to separate the middle glass plate 3 and the inner glass plate 4 to form a second hollow cavity 14, which further enhances the sound shielding effect.

[0037] Both the first hollow cavity 13 and the second hollow cavity 14 are filled with inert gas, which is argon or sulfur hexafluoride. This inert gas can reduce the propagation speed of sound waves and reduce the propagation of noise. At the same time, it has a low thermal conductivity, which can improve the heat insulation performance of the window. Flexible damping coatings 9 are provided on the opposite sides of the outer glass plate 2 and the inner glass plate 4, and flexible damping coatings 9 are provided on the front and rear sides of the middle glass plate 3. These are used to absorb the vibration energy of sound waves, reduce the propagation efficiency of sound waves, and significantly improve the sound insulation performance of the glass.

[0038] In this embodiment, the inner wall of the frame 1 is provided with an installation groove, the rear side of the inner wall of the installation groove is provided with a first groove 10, the front side of the inner wall of the installation groove is provided with a third groove 12, and the inner wall of the installation groove and the position between the first groove 10 and the third groove 12 is provided with a second groove 11, so as to provide a stable installation position for the glass plate.

[0039] Specifically, the outer glass plate 2, the middle glass plate 3, and the inner glass plate 4 are located in the first groove 10, the second groove 11, and the third groove 12, respectively, to achieve the stability and robustness of the structure.

[0040] Furthermore, the inner walls of the first groove 10, the second groove 11 and the third groove 12 are all provided with frame-shaped sound-absorbing pads 7 with matching shape and size. The frame-shaped sound-absorbing pads 7 are made of polyester fiber sound-absorbing cotton and are used to absorb multi-frequency noise and reduce the vibration of the frame and the propagation of noise.

[0041] Furthermore, the inner walls of the three frame-shaped sound-absorbing pads 7 are all provided with frame-shaped rubber pads 8. The inner walls of the three frame-shaped rubber pads 8 are tightly fitted to the outer walls of the outer glass plate 2, the middle glass plate 3, and the inner glass plate 4, respectively. The joints between the frame-shaped rubber pads 8 and the outer glass plate 2 are sealed with sealant, the joints between the frame-shaped rubber pads 8 and the middle glass plate 3 are sealed with sealant, and the joints between the frame-shaped rubber pads 8 and the inner glass plate 4 are sealed with sealant. The sealant achieves airtightness and watertightness, while absorbing the vibration between the glass plate and the frame 1, further improving the sound insulation effect.

[0042] Furthermore, the outer glass plate 2 has a thickness of 6-8mm and includes two tempered glass 20 arranged symmetrically front to back. A transparent PVB film 21 is provided between the two tempered glass 20. The tempered glass 20 has high strength and impact resistance, and the transparent PVB film 21 provides sound absorption and enhances the safety and explosion-proof performance of the glass.

[0043] Furthermore, the thickness of the middle glass panel 3 is 4-6mm. The middle glass panel 3 is low-emissivity glass, which reduces indoor heat loss and improves sound insulation.

[0044] Furthermore, the inner glass plate 4 has a thickness of 6-8mm and includes two float glass 40 arranged symmetrically front to back. A polyurethane film 41 is provided between the two float glass 40. The float glass 40 has good light transmission performance. The polyurethane film 41 sandwiched between the two glass layers can further absorb sound waves and reduce noise transmission.

[0045] Furthermore, the front side of the float glass 40 is provided with a sound-absorbing coating 42, which is a transparent polyurethane coating with a thickness of 0.1-0.3mm. This allows the inner glass plate 4 to further absorb and attenuate sound waves, especially with a significant shielding effect on low-frequency noise, while ensuring mechanical strength and indoor safety.

[0046] Furthermore, the flexible damping coating 9 has a thickness of 0.5-1mm. The flexible damping coating 9 is a transparent polyurethane coating that covers the glass surface to absorb the vibration energy of sound waves, reduce the propagation efficiency of sound waves, significantly improve the sound insulation performance of the glass, and maintain transparency.

[0047] In this embodiment, the multi-layered soundproof structure of the hollow soundproof window utilizes the outer glass panel 2 as an external barrier to effectively resist external impacts, wind pressure, and rain. Simultaneously, its internal transparent PVB film 21 absorbs noise and enhances safety. The middle glass panel 3, with its low-emissivity characteristics, not only reflects outdoor heat radiation but also blocks some noise from entering the room. The inner glass panel 4, being closer to the interior, further absorbs and attenuates residual noise transmitted from the middle glass panel 3. The interlayer polyurethane film 41 and the front sound-absorbing coating 42 are particularly effective at shielding low-frequency noise while maintaining indoor lighting. The flexible damping coating 9 of the hollow soundproof window covers the surface of the glass panel, effectively absorbing the energy generated by sound wave vibrations during daily use, thereby reducing sound propagation efficiency and preventing noise from entering the room. Through the multi-band noise absorption of the frame-shaped sound-absorbing pad 7 and the buffering and vibration-damping effect of the frame-shaped rubber pad 8, the noise propagation caused by vibration between the glass and the frame is further reduced, thus significantly improving the soundproofing effect.

[0048] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. Multilayer soundproofing structure of a hollow soundproofing screen window comprising a frame (1), characterized in that: The frame (1) is provided with an outer glass plate (2), an intermediate glass plate (3) and an inner glass plate (4) from back to front in sequence, a first spacing frame (5) is arranged between the outer glass plate (2) and the intermediate glass plate (3), the outer glass plate (2), the intermediate glass plate (3) and the first spacing frame (5) form a first hollow cavity (13), a second spacing frame (6) is arranged between the intermediate glass plate (3) and the inner glass plate (4), the intermediate glass plate (3), the inner glass plate (4) and the second spacing frame (6) form a second hollow cavity (14), the first hollow cavity (13) and the second hollow cavity (14) are filled with inert gas, the opposite sides of the outer glass plate (2) and the inner glass plate (4) are provided with flexible damping coating (9), and the front and back sides of the intermediate glass plate (3) are provided with flexible damping coating (9).

2. The multi-layer soundproofing structure of the hollow soundproofing screen window according to claim 1, characterized in that: The inner wall of the frame (1) is provided with a mounting groove, the rear side of the inner wall of the mounting groove is provided with a first groove (10), the front side of the inner wall of the mounting groove is provided with a third groove (12), and the inner wall of the mounting groove and located between the first groove (10) and the third groove (12) is provided with a second groove (11).

3. The multi-layer soundproofing structure of the hollow soundproofing screen window according to claim 2, characterized in that: The outer glass plate (2), the intermediate glass plate (3) and the inner glass plate (4) are located in the first groove (10), the second groove (11) and the third groove (12) respectively.

4. The multi-layer soundproofing structure of the hollow soundproofing screen window according to claim 2, characterized in that: The inner walls of the first groove (10), the second groove (11) and the third groove (12) are provided with frame-shaped sound-absorbing pads (7) with matching shapes and sizes, and the frame-shaped sound-absorbing pads (7) are made of polyester fiber sound-absorbing cotton.

5. The multi-layer soundproofing structure of a hollow soundproof shielding window according to claim 4, characterized in that: The inner walls of the three frame-shaped sound-absorbing pads (7) are provided with frame-shaped rubber pads (8), and the inner walls of the three frame-shaped rubber pads (8) are tightly attached to the outer walls of the outer glass plate (2), the intermediate glass plate (3) and the inner glass plate (4) respectively.

6. The multi-layer soundproofing structure of a hollow soundproof shielding window according to claim 1, characterized in that: The thickness of the outer glass plate (2) is 6-8mm, the outer glass plate (2) comprises two front and back symmetrical tempered glass (20), and a transparent PVB film (21) is arranged between the two tempered glass (20).

7. The multi-layer soundproofing structure of a hollow soundproof shielding window according to claim 1, characterized in that: The thickness of the intermediate glass plate (3) is 4-6mm, and the intermediate glass plate (3) is low emissivity glass.

8. The multi-layer soundproofing structure of a hollow soundproof shielding window according to claim 1, characterized in that: The thickness of the inner glass plate (4) is 6-8mm, the inner glass plate (4) comprises two front and back symmetrical float glass (40), and a polyurethane film (41) is arranged between the two float glass (40).

9. The multi-layer soundproofing structure of a hollow soundproof shielding window according to claim 8, characterized in that: The front side of the front float glass (40) is provided with a sound-absorbing coating (42), the sound-absorbing coating (42) is a transparent polyurethane coating, and the thickness of the sound-absorbing coating (42) is 0.1-0.3mm.

10. The multi-layer soundproofing structure of a hollow soundproof shielding window according to claim 1, characterized in that: The thickness of the flexible damping coating (9) is 0.5-1mm, and the flexible damping coating (9) is a transparent polyurethane coating.

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