Door with built-in noise reduction structure

Abstract

This utility model relates to the field of door panels, specifically a door with a built-in noise reduction structure. It includes a door frame with a through-hole mounting groove in the side wall of the frame. A sealing block is fixedly installed on the side wall of the mounting groove. The door panel is rotatably mounted within the mounting groove. A sealing groove is formed in the side wall of the door panel, and a filling groove is formed inside the door panel, with a filling layer fixedly installed within the filling groove. This door with a built-in noise reduction structure features a through-hole mounting groove in the side wall of the door frame to reduce gaps between the door panel and the door frame, thus reducing noise transmission. The rounded corner design of the sealing block reduces airflow turbulence, preventing whistling sounds caused by wind pressure. The rounded corner design of the sealing block also helps reduce wear on the sealing block when the door is closed, extending its service life. Furthermore, it allows for smoother door panel insertion, enhancing ease of use. Simultaneously, the flexible material of the sealing block absorbs impact vibration noise when the door panel closes, and the tight fit between the baffle and the door frame conceals door gaps, increasing the difficulty of prying the door and thus enhancing its security.

Description

Technical Field

[0001] This utility model relates to the field of door panels, and more particularly to doors with built-in noise reduction structures. Background Technology

[0002] Doors play a vital role in our daily lives, whether in residential, commercial, or public facilities. Doors protect people from external threats such as theft and intrusion. Modern doors are often equipped with locks and other security devices to further enhance security. Doors are the first line of defense in a building, using locks and materials to prevent illegal intrusion and protect life and property. Doors provide necessary isolation for personal spaces, ensuring the privacy of residents or users. Whether between family members or office colleagues, doors provide a relatively private space. Doors effectively isolate indoor and outdoor environments, maintaining stable indoor temperature, humidity, and air quality. This contributes to energy conservation and emission reduction, such as keeping indoors warm in winter and blocking hot air from entering in summer. In addition to physical isolation, doors also provide sound insulation, reducing noise pollution and creating a quieter and more comfortable living or working environment. Noise is a significant factor causing stress and can lead to psychological problems such as anxiety, irritability, and depression. Especially in learning and working environments, noise can be distracting, affecting memory and thinking ability, thus reducing efficiency and academic performance. In office environments, good soundproof doors can reduce interference from corridors or adjacent offices, helping employees concentrate and improve work efficiency. By effectively blocking external noise, soundproof doors create a quieter and more comfortable living environment for residents, helping to reduce stress and improve sleep quality. Prolonged exposure to high-intensity noise can lead to hearing damage. Using soundproof doors reduces noise pollution and protects people's hearing health.

[0003] Chinese patent CN221373382U discloses a solid wood noise-reducing door, which is constructed by splicing together a front and a back slope to prevent external noise from entering the room through the door. However, when the door panel is used for sound insulation and noise reduction, there is a problem that the door panel has a simple structure and poor noise reduction effect. In view of this, a door with a built-in noise reduction structure is provided. Utility Model Content

[0004] The main purpose of this utility model is to provide a door with a built-in noise reduction structure to solve the problem in related technologies where the door panel has a single structure and poor noise reduction effect when sound insulation and noise reduction are carried out.

[0005] To achieve the above objectives, according to one aspect of the present invention, a door with a built-in noise reduction structure is provided, including a door frame, wherein a mounting groove is provided through the side wall of the door frame, and a sealing block is fixedly installed on the side wall of the mounting groove; the door also includes a door panel, which is rotatably installed in the mounting groove, wherein a sealing groove is provided on the side wall of the door panel, and a filling groove is provided inside the door panel, wherein a filling layer is fixedly installed in the filling groove, and the noise reduction effect of the door panel is enhanced by the sealing block engaging with the filling layer inside the sealing groove and the filling groove.

[0006] Furthermore, a cover plate is fixedly installed at the edge of the side wall of the mounting groove.

[0007] Furthermore, several sound insulation grooves are symmetrically formed on the surface of the door panel, and the bottom surface of the sound insulation grooves has an arc-shaped structure.

[0008] Furthermore, a baffle is fixedly installed at the edge of the side wall of the door panel.

[0009] Furthermore, the filling layer includes filling plate a, filling plate b, and filling plate c.

[0010] Furthermore, the filling plate a is a damping material.

[0011] Furthermore, the filling board b is made of sound-absorbing cotton.

[0012] Furthermore, the filling plate c is made of honeycomb core material.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. This door with a built-in noise reduction structure has a door frame with a through-hole on the side wall. A door panel is rotatably installed inside the door frame. A sealing block made of flexible material is fixedly installed on the side wall of the mounting groove, with rounded corners on the inner edge of the sealing block. A sealing groove is formed on the side wall of the door panel. A cover plate is fixedly installed near the edge of the side wall of the mounting groove, and a baffle is fixedly installed near the edge of the side wall of the door panel. When the door panel is closed, the sealing block engages with the sealing groove, the side wall of the cover plate fits against the edge of the door panel surface, and the baffle fits against the side wall of the door frame. The flexible sealing block is embedded in the sealing groove, forming a sound wave blocking layer that can absorb mid-to-high frequency noise and reduce noise transmission through the door gap. The tight fit between the cover plate and the edge of the door panel hides the gap between the door panel and the door frame, providing physical noise reduction. The barrier helps reduce noise penetration. The baffle fits snugly against the side wall of the door frame, increasing the airtightness when the door is closed and preventing sound waves from propagating through gaps at the edge of the door panel. It also disperses the impact force when the door is closed, protecting the door frame from damage. This reduces the gap between the door panel and the door frame, thus reducing noise transmission. The rounded corner design of the sealing block reduces airflow turbulence and avoids whistling due to wind pressure. The rounded corner design of the sealing block also helps reduce wear on the sealing block when the door is closed, extending its service life. It also allows the door panel to be pushed into place more smoothly, enhancing ease of use. At the same time, the flexible material of the sealing block absorbs the impact vibration noise when the door panel is closed. The tight fit between the baffle and the door frame hides the door gaps, increasing the difficulty of prying the door and thus increasing the door's security.

[0015] 2. This door with a built-in noise reduction structure has a door panel with several symmetrical sound insulation grooves on its surface. The bottom of the sound insulation grooves has an arc-shaped wall structure. The door panel has a filling groove inside, and a filling layer is fixedly installed in the filling groove. The filling layer consists of filling plate a, filling plate b, and filling plate c. Filling plate a is a damping material, filling plate b is a sound-absorbing cotton material, and filling plate c is a honeycomb core material. The arc-shaped sound insulation grooves diffract and scatter sound waves, reducing noise propagation efficiency through the principle of sound wave interference cancellation and reducing sound wave reflection. Filling plate a absorbs low-frequency vibrations, filling plate b dissipates energy through sound wave refraction through its porous structure, and filling plate c attenuates the remaining mid-frequency sound waves through the resonance of the honeycomb cavity, while blocking the series propagation of sound waves. Filling plate a increases the structural damping coefficient, reducing vibration noise when the door is opened and closed. The different filling layers have different absorption and isolation effects on different frequencies of sound, effectively covering a wider noise spectrum and providing a more comprehensive sound insulation effect. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the door panel installation structure in a preferred embodiment of the present invention;

[0017] Figure 2 This is a schematic diagram of the door frame structure in a preferred embodiment of the present invention;

[0018] Figure 3This is a schematic cross-sectional view of the door frame in a preferred embodiment of the present invention;

[0019] Figure 4 This is a schematic diagram of the door panel structure in a preferred embodiment of the present invention;

[0020] Figure 5 This is a schematic cross-sectional view of the door panel in a preferred embodiment of the present invention;

[0021] Figure 6 This is a cross-sectional view of the filling groove in a preferred embodiment of the present invention.

[0022] Figure label:

[0023] 1. Door frame; 11. Mounting groove; 111. Sealing block; 112. Cover plate;

[0024] 2. Door panel; 21. Sealing groove; 22. Baffle; 23. Sound insulation groove; 24. Filling groove; 25. Filling layer; 251. Filling board a; 252. Filling board b; 253. Filling board c. Detailed Implementation

[0025] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0026] This embodiment provides a door with a built-in noise reduction structure, including a door frame 1. The side wall of the door frame 1 has a through-hole mounting groove 11. A sealing block 111 is fixedly installed on the side wall of the mounting groove 11. The door panel 2 is rotatably installed in the mounting groove 11. The side wall of the door panel 2 has a sealing groove 21. A filling groove 24 is opened in the door panel 2. A filling layer 25 is fixedly installed in the filling groove 24. The sealing block 111 is snapped into the sealing groove 21 and the filling layer 25 in the filling groove 24 to increase the noise reduction effect of the door panel 2.

[0027] like Figure 1 As shown, a cover plate 112 is fixedly installed at the edge of the side wall of the mounting groove 11. When the door panel 2 is closed, the side wall of the cover plate 112 fits against the edge of the surface of the door panel 2 to hide the gap between the door panel 2 and the door frame 1, providing a physical barrier, which helps to reduce noise penetration and increases the difficulty of prying the door, thereby increasing the security of the door panel 2.

[0028] like Figure 1 , Figure 4 As shown, several sound insulation grooves 23 are symmetrically opened on the surface of the door panel 2. The bottom surface of the sound insulation groove 23 is an arc-shaped structure. The arc-shaped sound insulation groove 23 diffracts and scatters sound waves, and reduces the noise propagation efficiency and reduces sound wave reflection through the principle of sound wave interference cancellation.

[0029] like Figure 4 As shown, a baffle 22 is fixedly installed at the edge of the side wall of the door panel 2. When the door panel 2 is closed, the baffle 22 fits against the side wall of the door frame 1, which increases the airtightness of the door panel 2 when it is closed, prevents sound waves from propagating through the gaps at the edge of the door panel 2, and disperses the impact force when the door is closed, protecting the door frame 1 from damage, so as to reduce the gap between the door panel 2 and the door frame 1 and reduce noise transmission.

[0030] like Figure 5 , Figure 6 As shown, the filling layer 25 includes filling plate a251, filling plate b252 and filling plate c253. Filling layers 25 of different materials have different absorption and isolation effects on sounds of different frequencies, effectively covering a wider noise spectrum and providing a more comprehensive sound insulation effect.

[0031] like Figure 2 , Figure 3 As shown, the sealing block 111 is made of flexible material, and the inner sidewall edge of the sealing block 111 is rounded. The sealing block 111 is preferably made of flexible rubber. When the door panel 2 is closed, the sealing block 111 is snapped into the sealing groove 21. The flexible sealing block 111 is embedded in the sealing groove 21 to form a sound wave blocking layer, which can absorb mid-to-high frequency noise and reduce the transmission of noise in the door gap. The rounded corner design of the sealing block 111 reduces airflow turbulence and avoids whistling due to wind pressure. At the same time, it helps to reduce the wear of the sealing block 111 when the door panel 2 is closed, extend its service life, and make it easier to push the door panel 2 into position, enhancing the convenience of use. Meanwhile, the flexible material sealing block 111 absorbs the impact vibration noise when the door panel 2 is closed.

[0032] like Figure 5 As shown, the filling plate a251 is a damping material. The filling plate a251 is preferably a composite material composed of aluminum foil, foam and rubber. The filling plate a251 absorbs low-frequency vibration, improves the structural damping coefficient, and reduces vibration noise when the door is opened and closed.

[0033] like Figure 5 As shown, the filling board b252 is made of sound-absorbing cotton. The filling board b252 is preferably made of environmentally friendly polyurethane sound-absorbing cotton. The filling board b252 dissipates energy through sound wave refraction through its porous structure. Its complex internal fiber structure converts sound energy into heat energy and dissipates it. It is suitable for absorbing mid-to-high frequency noise.

[0034] like Figure 5 As shown, the filling plate c253 is made of honeycomb core material. Preferably, the filling plate c253 is an aluminum alloy honeycomb plate. The filling plate c253 utilizes the resonance of the honeycomb cavity to attenuate the remaining mid-frequency sound waves and block the series propagation of sound waves. The honeycomb cavity forms a sound wave labyrinth, which consumes sound energy through multiple reflections. When it is combined with the filling plate b252, the sound-absorbing cotton blocks the opening of the pores and enhances the frictional sound absorption effect.

[0035] In practical use, when the door panel 2 is closed, the sealing block 111 engages with the sealing groove 21, the side wall of the cover plate 112 adheres to the edge of the door panel 2, and the baffle 22 adheres to the side wall of the door frame 1. The flexible sealing block 111 is embedded in the sealing groove 21, forming a sound wave blocking layer that can absorb mid-to-high frequency noise and reduce noise transmission through the door gap. The tight fit between the cover plate 112 and the edge of the door panel 2 hides the gap between the door panel 2 and the door frame 1, providing a physical barrier and helping to reduce noise penetration. The fit between the baffle 22 and the side wall of the door frame 1 increases the airtightness of the door panel 2 when closed, preventing sound waves from passing through the gaps at the edge of the door panel 2. The sealing block 111 reduces the impact force when closing the door, protecting the door frame 1 from damage. This reduces the gap between the door panel 2 and the door frame 1, thus reducing noise transmission. The rounded corner design of the sealing block 111 reduces airflow turbulence, preventing whistling sounds caused by wind pressure. It also helps reduce wear on the sealing block 111 when closing the door panel 2, extending its service life. Furthermore, it allows the door panel 2 to be pushed into place more smoothly, enhancing ease of use. At the same time, the flexible material of the sealing block 111 absorbs the impact vibration noise when the door panel 2 closes. The tight fit between the baffle 22 and the door frame 1 hides the door gap, increasing the difficulty of prying the door and thus increasing the security of the door panel 2. Several sound insulation grooves 23 are symmetrically formed on the surface of the door panel 2. The bottom of the sound insulation grooves 23 has an arc-shaped wall structure. A filling groove 24 is formed inside the door panel 2. A filling layer 25 is fixedly installed in the filling groove 24. The filling layer 25 consists of filling plate a251, filling plate b252 and filling plate c253. Filling plate a251 is a damping material, filling plate b252 is a sound-absorbing cotton material, and filling plate c253 is a honeycomb core material. The arc-shaped sound insulation grooves 23 diffract and scatter sound waves, reduce noise propagation efficiency through the principle of sound wave interference cancellation, and reduce sound wave reflection. Filling plate a251 absorbs low-frequency vibrations, filling plate b252 consumes energy through sound wave refraction through the porous structure, and filling plate c253 attenuates the remaining mid-frequency sound waves through the resonance of the honeycomb cavity, while blocking the series propagation of sound waves. Filling plate a251 increases the structural damping coefficient and reduces vibration noise when opening and closing the door. The filling layers 25 of different materials have different absorption and isolation effects on sound of different frequencies, effectively covering a wider noise spectrum and providing a more comprehensive sound insulation effect.

[0036] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. Door with built-in noise reduction structure, comprising a door frame (1), characterized in that, The door frame (1) has a through-hole mounting groove (11) on its side wall, and a sealing block (111) is fixedly installed on the side wall of the mounting groove (11). It also includes: The door panel (2) is rotatably installed in the mounting groove (11). The side wall of the door panel (2) is provided with a sealing groove (21). The door panel (2) is provided with a filling groove (24). A filling layer (25) is fixedly installed in the filling groove (24). The filling layer (25) in the sealing groove (21) and the filling groove (24) is connected by a sealing block (111) to increase the noise reduction effect of the door panel (2).

2. The door with a built-in noise reduction structure according to claim 1, characterized in that, A cover plate (112) is fixedly installed at the edge of the side wall of the mounting groove (11).

3. The door with a built-in noise reduction structure according to claim 1, characterized in that, The door panel (2) has several symmetrical sound insulation grooves (23) on its surface, and the bottom surface of the sound insulation grooves (23) is an arc-shaped structure.

4. The door with a built-in noise reduction structure according to claim 1, characterized in that, A baffle (22) is fixedly installed at the edge of the side wall of the door panel (2).

5. The door with a built-in noise reduction structure according to claim 1, characterized in that, The filling layer (25) includes filling plate a (251), filling plate b (252) and filling plate c (253).

6. The door with a built-in noise reduction structure according to claim 1, characterized in that, The sealing block (111) is made of flexible material, and the inner sidewall edge of the sealing block (111) is rounded.

7. The door with a built-in noise reduction structure according to claim 5, characterized in that, The filling plate a(251) is a damping material.

8. The door with a built-in noise reduction structure according to claim 5, characterized in that, The filling plate b (252) is made of sound-absorbing cotton.

9. The door with a built-in noise reduction structure according to claim 5, characterized in that, The filling plate c(253) is made of honeycomb core material.

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