Composite material door and window with noise reduction function
By using a combination design of polyester fiber sound insulation board, polyurethane foam layer and wooden sound absorption board in composite material doors and windows, combined with sealing components and air pump, the problem of poor sound insulation and noise reduction performance of composite material doors and windows is solved, and better noise isolation effect is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NEIJIANG XINGXING TECH CO LTD
- Filing Date
- 2025-06-03
- Publication Date
- 2026-05-08
AI Technical Summary
Existing composite material doors and windows have poor sound insulation and noise reduction performance, resulting in the ability to clearly hear external noise indoors.
The design combines polyester fiber sound insulation board, polyurethane foam layer, wooden sound absorption board and hollow rubber bladder. Combined with sealing components and air pump, it forms a noise reduction board through the connection of threaded grooves, mounting holes, slots and pins. It utilizes the sound absorption and sound insulation properties of each material to fill the gap between the fixed frame and the door and window to reduce vibration transmission.
It improves indoor quietness and enhances sound insulation and noise reduction by absorbing and isolating noise, thus reducing noise transmission.
Smart Images

Figure CN224214073U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of composite door and window technology, specifically to a composite material door and window with noise reduction function. Background Technology
[0002] Composite material doors and windows are high-performance door and window products that combine the advantages of multiple materials. By scientifically combining materials with different properties (such as aluminum alloy, wood, PVC, and fiberglass), they achieve a comprehensive improvement in strength, heat insulation, sound insulation, aesthetics, and durability. Common types include aluminum-wood composite, thermally broken aluminum alloy, and PVC. Through the scientific ratio and structural optimization of different materials, these doors and windows can achieve comprehensive performance that cannot be achieved by a single material.
[0003] Existing composite material doors and windows are widely used, but their sound insulation and noise reduction performance is generally poor, and external noise can be clearly heard indoors. Therefore, in order to address the above problems, a composite material door and window with noise reduction function is proposed. Utility Model Content
[0004] The purpose of this invention is to provide a composite material door and window with noise reduction function to solve the problem of poor sound insulation and noise reduction performance of existing devices mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A composite material door and window with noise reduction function includes a composite door and window, a fixed frame fixedly connected to the front side of the composite door and window, a noise reduction plate slidably connected to the inner side of the fixed frame, multiple threaded grooves opened at the bottom of the noise reduction plate, horizontally arranged mounting plates symmetrically arranged below the threaded grooves, multiple vertically penetrating mounting holes opened inside the mounting plates, mounting bolts provided inside the mounting holes, a handle fixedly connected between two mounting plates, a fixed plate fixedly connected to the front side of the handle, slots symmetrically opened on the left and right sides of the fixed plate, a sliding groove symmetrically opened at the bottom front side of the fixed frame, a pin slidably connected inside the sliding groove, and a sealing component installed inside the fixed frame on one side of the noise reduction plate.
[0007] Preferably, the threaded groove and the mounting hole are vertically aligned, the mounting bolt is threaded into the inner side of the threaded groove, the slot and the slide are horizontally aligned, and the pin is inserted into the inner side of the slot.
[0008] Preferably, the noise reduction board includes a polyester fiber sound insulation board disposed inside the fixed frame, a polyurethane foam layer fixedly connected to the rear side of the polyester fiber sound insulation board, a wooden sound-absorbing board fixedly connected to the rear side of the polyurethane foam layer, and a hollow rubber bladder fixedly connected inside the polyurethane foam layer.
[0009] Preferably, there are multiple hollow rubber bladders, which are evenly distributed inside the polyurethane foam layer, and the hollow rubber bladders penetrate the wooden sound-absorbing panel and are fixedly connected to the wooden sound-absorbing panel.
[0010] Preferably, the threaded groove is formed at the bottom end of the polyurethane foam layer, and the wooden sound-absorbing panel is tightly fitted to the composite door and window on the side closest to the composite door and window.
[0011] Preferably, the sealing assembly includes a hollow sealing strip fixedly connected to the inner side of the fixed frame, a connector that penetrates the hollow sealing strip is fixedly connected to one side of the hollow sealing strip, and an air pump that penetrates the hollow sealing strip is fixedly connected to the side of the connector away from the hollow sealing strip.
[0012] Preferably, the air pump is installed on the outside of the fixed frame, and the hollow sealing strip is in close contact with the polyester fiber sound insulation board on the side closest to the polyester fiber sound insulation board.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] 1. In this utility model, through the setting of a fixed frame, noise reduction plate, threaded groove, mounting plate, mounting hole, mounting bolt, handle, fixing plate, slot, slide and pin, when external noise is generated, the wooden sound-absorbing plate and polyurethane foam layer can absorb the external noise, the hollow rubber bladder can provide support for the polyurethane foam layer and further absorb noise, the polyester fiber sound insulation board can isolate the noise, and the design of the noise reduction plate and its connecting components can reduce vibration transmission to reduce noise, thereby improving the quietness of the room;
[0015] 2. In this utility model, by setting a sealing component, a hollow sealing strip, a connector, and an air pump, the air pump is started after the noise reduction board is installed, causing the hollow sealing strip to expand until the side of the hollow sealing strip near the polyester fiber sound insulation board is tightly fitted with the polyester fiber sound insulation board, and the side of the wooden sound-absorbing board near the composite door and window is tightly fitted with the composite door and window, thereby completing the installation of the device. This design can fill the gap between the noise reduction board and the fixed frame and composite door and window, and improve the sound insulation and noise reduction function of the device. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This utility model Figure 1 A schematic diagram of the structure at point A;
[0018] Figure 3 This is a schematic diagram of the noise reduction board installation structure of this utility model;
[0019] Figure 4This is a schematic diagram of the disassembly structure of the noise reduction board of this utility model;
[0020] Figure 5 This utility model Figure 4 A schematic diagram of the structure at point B;
[0021] Figure 6 This is a schematic diagram of the inner structure of the fixed version of this utility model;
[0022] Figure 7 This is a schematic diagram of the air pump connection component of this utility model.
[0023] In the diagram: 1. Composite door and window; 2. Fixed frame; 3. Noise reduction board; 31. Polyester fiber sound insulation board; 32. Polyurethane foam layer; 33. Wooden sound-absorbing board; 34. Hollow rubber bladder; 4. Threaded groove; 5. Mounting plate; 6. Mounting hole; 7. Mounting bolt; 8. Handle; 9. Fixing plate; 10. Slot; 11. Slide; 12. Pin; 13. Sealing assembly; 131. Hollow sealing strip; 132. Connector; 133. Air pump. Detailed Implementation
[0024] 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.
[0025] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" 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. Unless otherwise stated, these directional terms 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, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.
[0026] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.
[0027] Please see Figure 1-7 This utility model provides a technical solution:
[0028] A composite material door and window with noise reduction function includes a composite door and window 1. A fixed frame 2 is fixedly connected to the front side of the composite door and window 1. A noise reduction plate 3 is slidably connected to the inner side of the fixed frame 2. The bottom of the noise reduction plate 3 has multiple threaded grooves 4. A horizontally arranged mounting plate 5 is symmetrically arranged below the threaded grooves 4. Multiple vertically penetrating mounting holes 6 are opened inside the mounting plate 5. Mounting bolts 7 are provided inside the mounting holes 6. A handle 8 is fixedly connected between two mounting plates 5. A fixed plate 9 is fixedly connected to the front side of the handle 8. The fixed plate 9 has symmetrical openings on the left and right sides. The frame 2 has a slot 10 and a sliding groove 11 symmetrically opened on the bottom front side. A pin 12 is slidably connected to the inner side of the sliding groove 11. A sealing component 13 is installed on one side of the noise reduction plate 3 and installed inside the frame 2. The threaded groove 4 and the mounting hole 6 are vertically aligned. The mounting bolt 7 is threadedly connected to the inner side of the threaded groove 4. The slot 10 and the sliding groove 11 are horizontally aligned. The pin 12 is inserted into the inner side of the slot 10. The noise reduction plate 3 includes a polyester fiber sound insulation board 31 set inside the frame 2. A polyurethane foam sound insulation board is fixedly connected to the rear side of the polyester fiber sound insulation board 31. A polyurethane foam layer 32 is formed, and a wooden sound-absorbing panel 33 is fixedly connected to the rear side of the polyurethane foam layer 32. Multiple hollow rubber bladders 34 are fixedly connected inside the polyurethane foam layer 32 and are evenly distributed within it. Each hollow rubber bladder 34 penetrates the wooden sound-absorbing panel 33 and is fixedly connected to it. A threaded groove 4 is formed at the bottom of the polyurethane foam layer 32. The wooden sound-absorbing panel 33 is tightly fitted to the composite door / window 1 on the side closest to it, via a fixed frame. 2. Noise-reducing panel 3, threaded groove 4, mounting plate 5, mounting hole 6, mounting bolt 7, handle 8, fixing plate 9, slot 10, slide 11, and pin 12. When external noise is generated, the wooden sound-absorbing panel 33 and the polyurethane foam layer 32 can absorb the external noise. The hollow rubber bladder 34 can provide support for the polyurethane foam layer 32 and further absorb noise. The polyester fiber sound insulation panel 31 can isolate noise. The design of the noise-reducing panel 3 and its connecting components can reduce vibration transmission to reduce noise, thereby improving the quietness of the room.
[0029] The sealing assembly 13 includes a hollow sealing strip 131 fixedly connected to the inner side of the fixed frame 2. A connector 132, which passes through the hollow sealing strip 131, is fixedly connected to one side of the hollow sealing strip 131. An air pump 133, which passes through the hollow sealing strip 131, is fixedly connected to the side of the connector 132 away from the hollow sealing strip 131. The air pump 133 is installed on the outer side of the fixed frame 2. The side of the hollow sealing strip 131 closest to the polyester fiber sound insulation board 31 is tightly fitted to the polyester fiber sound insulation board 31. Through the provided sealing assembly 13, After the noise reduction panel 3 is installed, the air pump 133 is activated to expand the hollow sealing strip 131 until the side of the hollow sealing strip 131 closest to the polyester fiber sound insulation panel 31 is tightly fitted with the polyester fiber sound insulation panel 31, and the side of the wooden sound-absorbing panel 33 closest to the composite door and window 1 is tightly fitted with the composite door and window 1, thus completing the installation of the device. This design can fill the gap between the noise reduction panel 3 and the fixed frame 2 and the composite door and window 1, and improve the sound insulation and noise reduction function of the device.
[0030] Workflow: Before use, power on the device and connect it to an external controller. First, install the various components of the device. Install the composite door / window 1 on the windowsill or door frame. Install the fixing frame 2 on the composite door / window 1, making the fixing frame 2 protrude outwards. In actual use, the direction of the fixing frame 2 can be changed according to needs, thus leaving sufficient space for the installation of the noise reduction panel 3. Then, install the polyester fiber sound insulation board 31 and the wooden sound absorption board 33 on both sides of the polyurethane foam layer 32 to assemble the noise reduction panel 3. Next, place the mounting plate 5 at the bottom of the noise reduction panel 3, insert the mounting bolt 7 into the mounting hole 6 and screw it into the threaded groove 4 to complete the installation of the noise reduction panel 3. Next, pull the handle 8 to insert the noise reduction panel 3 into the fixing frame 2 and move the pin 12 inside the slide groove 11 to move the pin 12 into the slot 10 to limit the fixing plate 9, thereby positioning the noise reduction panel 3. Finally, start the air pump 133. The air pump 133 pours outside air into the hollow sealing strip 131 through the connector 132, causing the hollow sealing strip 131 to expand until the side of the hollow sealing strip 131 near the polyester fiber sound insulation board 31 is tightly fitted with the polyester fiber sound insulation board 31, and the side of the wooden sound-absorbing board 33 near the composite door and window 1 is tightly fitted with the composite door and window 1, thus completing the installation of the device. The design of the sealing component 13 and its connecting components can fill the gap between the noise reduction board 3 and the fixed frame 2 and the composite door and window 1, improving the sound insulation and noise reduction function of the device. When external noise is generated, the wooden sound-absorbing board 33 and the polyurethane foam layer 32 can absorb the external noise. The hollow rubber bladder 34 can provide support for the polyurethane foam layer 32 and further absorb noise. The polyester fiber sound insulation board 31 can isolate noise. The design of the noise reduction board 3 and its connecting components can reduce vibration transmission to reduce noise, thereby improving the quietness of the room.
[0031] Contents not described in detail in this specification are existing technologies known to those skilled in the art. Standard parts used in this invention can all be purchased commercially, and irregularly shaped parts can be custom-made according to the description and drawings. The specific connection methods for each part all employ conventional methods such as bolts, rivets, and welding, which are already mature technologies. The machinery, parts, and equipment all use conventional models from the prior art, and the circuit connections also employ conventional connection methods from the prior art, which will not be detailed here.
[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A composite material door and window with noise reduction function, comprising a composite door and window (1), characterized in that: The composite door and window (1) is fixedly connected to a fixed frame (2) on the front side. A noise reduction plate (3) is slidably connected to the inside of the fixed frame (2). The noise reduction plate (3) has multiple threaded grooves (4) at the bottom. A horizontally arranged mounting plate (5) is symmetrically arranged below the threaded grooves (4). A multiple vertically penetrating mounting hole (6) is opened inside the mounting plate (5). A mounting bolt (7) is provided inside the mounting hole (6). A handle (8) is fixedly connected between two mounting plates (5). A fixed plate (9) is fixedly connected to the front of the handle (8). Slots (10) are symmetrically opened on the left and right sides of the fixed plate (9). A sliding groove (11) is symmetrically opened at the bottom of the front side of the fixed frame (2). A pin (12) is slidably connected inside the sliding groove (11). A sealing component (13) installed inside the fixed frame (2) is provided on one side of the noise reduction plate (3).
2. The composite material door and window with noise reduction function according to claim 1, characterized in that: The threaded groove (4) and the mounting hole (6) are vertically aligned. The mounting bolt (7) is threaded into the inside of the threaded groove (4). The slot (10) and the slide (11) are horizontally aligned. The pin (12) is inserted into the inside of the slot (10).
3. A composite material door and window with noise reduction function according to claim 1, characterized in that: The noise reduction board (3) includes a polyester fiber sound insulation board (31) disposed inside the fixed frame (2), a polyurethane foam layer (32) is fixedly connected to the rear side of the polyester fiber sound insulation board (31), a wooden sound absorption board (33) is fixedly connected to the rear side of the polyurethane foam layer (32), and a hollow rubber bladder (34) is fixedly connected inside the polyurethane foam layer (32).
4. A composite material door and window with noise reduction function according to claim 3, characterized in that: The number of hollow rubber bladders (34) is multiple. The hollow rubber bladders (34) are evenly distributed inside the polyurethane foam layer (32). The hollow rubber bladders (34) penetrate the wooden sound-absorbing panel (33) and are fixedly connected to the wooden sound-absorbing panel (33).
5. A composite material door and window with noise reduction function according to claim 3, characterized in that: The threaded groove (4) is opened at the bottom of the polyurethane foam layer (32), and the wooden sound-absorbing board (33) is closely fitted to the composite door and window (1) on the side close to the composite door and window (1).
6. A composite material door and window with noise reduction function according to claim 5, characterized in that: The sealing assembly (13) includes a hollow sealing strip (131) fixedly connected to the inside of the fixed frame (2). A connector (132) communicating with the hollow sealing strip (131) is fixedly connected to one side of the hollow sealing strip (131). An air pump (133) communicating with the hollow sealing strip (131) is fixedly connected to the side of the connector (132) away from the hollow sealing strip (131).
7. A composite material door and window with noise reduction function according to claim 6, characterized in that: The air pump (133) is installed on the outside of the fixed frame (2), and the hollow sealing strip (131) is closely fitted to the polyester fiber sound insulation board (31) on the side near the polyester fiber sound insulation board (31).