Soundproofing and noise reduction suit door

Abstract

This utility model discloses a soundproof and noise-reducing door set, including a door leaf and a door frame. The door leaf includes a door leaf body, a front damping sound insulation board, a front panel, a rear damping sound insulation board, and a middle panel. The door frame includes a front door frame trim panel, a rear door frame trim panel, an inner rear panel, an inner front panel, and a solid wood strip filling layer. A multi-step elastic sound insulation strip is provided at the connection between the inner rear panel and the inner front panel. The door leaf of this utility model uses solid wood strips and magnesium sulfate-oxygenated board to form the door leaf body. A front damping sound insulation board and a rear damping sound insulation board are provided on the front and rear sides of the door leaf body, along with a first high-density sound insulation board located on the rear side of the middle panel, forming a multi-layer sound insulation combination structure. The door frame uses an outer panel, a solid wood strip filling layer, and an inner rear panel. A multi-step elastic sound insulation strip is provided between the door frame and the door leaf, and in conjunction with a second high-density sound insulation board at the connection point, it can effectively block mid-to-high frequency noise and low-frequency noise from all directions.

Description

Technical Field

[0001] This utility model relates to the field of soundproof door technology, specifically to a soundproof and noise-reducing door set. Background Technology

[0002] A door refers to the entrance or exit of a building, or a device installed at the entrance or exit that can be opened and closed. A door is a physical entity that divides a limited space, and its function is to connect and close the entrances or exits of two or more spaces. For places with high sound insulation requirements, such as hotels, offices, and study rooms, ordinary doors have poor sound insulation performance, and the door frame and door leaf have poor sealing, failing to isolate significant noise. Therefore, to address the aforementioned problems, it is necessary to propose a soundproof and noise-reducing door set with better sound insulation performance. Summary of the Invention

[0003] To address the aforementioned shortcomings of existing technologies, this utility model provides a soundproof and noise-reducing door set.

[0004] To achieve the aforementioned objectives, the technical solution adopted by this utility model is as follows: It includes a door leaf and a door frame; the door leaf includes a door leaf body, with a front damping sound insulation board and a front panel sequentially fixed to the front side of the door leaf body, and a rear damping sound insulation board and a middle panel sequentially fixed to the rear side of the door leaf body, forming a first stepped opening between the rear damping sound insulation board and the middle panel and the door leaf body; the door frame includes a front door frame closing panel, a rear door frame closing panel, an outer panel, an inner rear panel, and an inner front panel, with the inner front panel fitting against the side of the door leaf body; a solid wood strip filling layer is provided between the front door frame closing panel, the rear door frame closing panel, the outer panel, the inner rear panel, and the inner front panel; a multi-step stepped portion that cooperates with the door leaf body is provided at the connection between the inner rear panel and the inner front panel, and a multi-step elastic sound insulation strip is provided on the multi-step stepped portion.

[0005] Furthermore, the main body of the door panel includes at least two solid wood strips and a sound-absorbing panel disposed between adjacent solid wood strips, with each sound-absorbing panel having a vertically penetrating sound-absorbing hole.

[0006] Furthermore, a first high-density sound insulation board and a rear panel are sequentially arranged on the rear side of the middle panel, and a second stepped opening is formed between the two sides of the first high-density sound insulation board, the rear panel and the middle panel.

[0007] Furthermore, the inner rear panel includes an inner rear outer panel, a second high-density sound insulation board, and an inner rear middle panel, which are fixed sequentially from the inside out.

[0008] Furthermore, a first step and a second step are formed at the connection between the inner rear panel and the inner front panel, and a third step is formed between the inner rear middle panel and the inner rear outer panel.

[0009] Furthermore, both the front door frame trim panel and the rear door frame trim panel are L-shaped. One side of the rear door frame trim panel is connected to the inner rear panel, and the other end is left with a gap filled by a wood strip layer to the rear side of the outer panel. One end of the front door frame trim panel is located between the outer panel and the inner front panel, and the other end is left with a gap filled by a wood strip layer to the rear side of the outer panel.

[0010] Furthermore, an automatic lifting sealing strip is provided at the bottom of the door leaf, and an installation groove for installing the automatic lifting sealing strip is provided at the bottom of the door leaf.

[0011] Furthermore, the sound-absorbing panel is a magnesium oxysulfate purifying board or a magnesium sulfate fireproof board; both the front damping sound insulation board and the rear damping sound insulation board are ultra-microcrystalline damping sound insulation boards.

[0012] Furthermore, the front panel, middle panel, and rear panel are carbon crystal zero-degree paint-free decorative panels; the front door frame trim panel, rear door frame trim panel, outer panel, inner front panel, and inner rear outer panel are carbon crystal zero-degree paint-free decorative panels.

[0013] Furthermore, the first and second high-density sound insulation boards are fiberglass sound insulation boards, sound insulation felt sound insulation boards, or sound insulation cotton sound insulation boards.

[0014] The beneficial effects of this utility model are as follows: The door leaf of this utility model is made of solid wood strips and magnesium sulfate-oxygenated board to form the main body of the door leaf. Front damping sound insulation board and rear damping sound insulation board are set on the front and rear sides of the main body of the door leaf, and a first high-density sound insulation board is set on the rear side of the middle panel, which together form a multi-layer sound insulation combination structure. The door frame is made of an outer panel, a solid wood strip filling layer and an inner rear panel. A multi-step elastic sound insulation strip is set between the door frame and the door leaf. With the second high-density sound insulation board at the connection, it can effectively block mid-to-high frequency noise and low frequency noise in all directions.

[0015] This utility model uses a high-elasticity nylon sealing strip to seal the door leaf and door frame, ensuring a tight fit between the door leaf and the door frame, reducing friction and noise, and effectively solving the problem of three-way airtightness of the door leaf; the gap left at the bottom of the door leaf is perfectly blocked from sound transmission from all four sides of the door gap by installing an automatic lifting floor silent strip; the door leaf adopts a multi-layer sound insulation and noise reduction structure with sound-absorbing panels, solid wood strips, and a first high-density sound insulation board, which can achieve better sound insulation and noise reduction.

[0016] The door panel of this utility model is equipped with a sound-absorbing panel with elliptical holes. The elliptical hole design can more accurately break the sound wave propagation path. After the sound wave enters, it will be converted into heat energy by friction in the elliptical hole, reducing the intensity of reflected sound waves. It can significantly reduce airborne and solid-borne sound transmission, effectively blocking more than 80% of external noise interference, and blocking mid-to-high frequency noises such as human voices, TV sounds from next door, and footsteps in the corridor outside the door.

[0017] Both the front and rear damping sound insulation panels of this utility model are preferably microcrystalline damping sound insulation panels. The high-density small molecular structure of the microcrystalline damping sound insulation panel makes it hard and has strong sealing properties, which makes it reflect and attenuate sound waves, effectively blocking sound wave penetration and effectively reducing the transmission of weak sound wave vibrations. This keeps low-frequency noises such as air conditioner outdoor unit noise, e-sports hotel audio surround sound, and traffic noise outside the door. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention in Embodiment 1; Figure 2 This is a schematic diagram of the door leaf structure in Example 1; Figure 3 This is a schematic diagram of the overall structure of the door frames on both sides in Example 1; Figure 4 This is a schematic diagram of the door frame structure in Example 1; Figure 5 This is a schematic diagram of the overall structure of the door leaf in Example 2; The symbols for each component are as follows: 1. Door leaf; 11. Door leaf body; 111. Solid wood strips; 112. Sound-absorbing panel; 113. Sound-absorbing holes; 12. Front damping sound insulation panel; 13. Front panel; 14. Rear damping sound insulation panel; 15. Middle panel; 16. First high-density sound insulation panel; 17. Rear panel; 18. First step opening; 19. Second step opening; 2. Door frame; 21. Front door frame trim panel; 22. Rear door frame trim panel; 23. Outer panel; 24. Inner rear panel; 241. Second high-density sound insulation board; 242. Inner rear middle panel; 243. Inner rear outer panel; 25. Inner front panel; 26. Multi-step elastic sound insulation strip; 261. First step; 262. Second step; 263. Third step; 27. Solid wood square strip filling layer. Detailed Implementation

[0019] The specific embodiments of this utility model are described below to enable those skilled in the art to understand this utility model. However, it should be understood that this utility model is not limited to the scope of the specific embodiments. For those skilled in the art, as long as various changes are within the spirit and scope of this utility model as defined and determined by the appended claims, these changes are obvious. All utility model creations utilizing the concept of this utility model are within the scope of protection.

[0020] Example 1 like Figure 1 and 2 As shown, the soundproof and noise-reducing door set includes door leaf 1 and door frame 2, as follows: Figure 2As shown, the door leaf 1 includes a door leaf body 11. A front damping sound insulation plate 12 and a front panel 13 are sequentially fixed to the front side of the door leaf body 11. A rear damping sound insulation plate 14 and a middle panel 15 are sequentially fixed to the rear side of the door leaf body 11. A first stepped opening 18 is formed between the two sides of the rear damping sound insulation plate 14 and the middle panel 15 and the door leaf body 11. A first high-density sound insulation plate 16 and a rear panel 17 are sequentially arranged on the rear side of the middle panel 15. A second stepped opening 19 is formed between the two sides of the first high-density sound insulation plate 16 and the rear panel 17 and the middle panel 15. The first high-density sound insulation plate 16 can be a fiberglass sound insulation plate, a sound insulation felt sound insulation plate, or a sound insulation cotton sound insulation plate. The door leaf body 11 includes at least two solid wood strips 111 and sound-absorbing plates 112 disposed between adjacent solid wood strips 111. Each sound-absorbing plate 112 is provided with a vertically penetrating sound-absorbing hole 113. The sound-absorbing hole 11 can be designed as an elliptical hole. The elliptical hole can more precisely break the sound wave propagation path. After the sound wave enters, it will be converted into heat energy through friction within the elliptical hole, reducing the intensity of reflected sound waves. This significantly weakens airborne and solid-borne sound transmission, effectively isolating more than 80% of external noise interference, blocking mid-to-high frequency noises such as human voices, neighbor's TV sound, and footsteps in the stairwell. The sound-absorbing panel 112 is preferably a three-dimensional carbon nanoporous sound-absorbing panel, a magnesium sulfate-oxygenated sound-absorbing panel, or a magnesium sulfate fireproof panel. Both the front damping sound insulation panel 12 and the rear damping sound insulation panel 14 are preferably ultra-microcrystalline damping sound insulation panels. Due to its high-density small molecular structure, magnesium sulfate fireproof panel is hard and has strong sealing properties, causing sound wave reflection and attenuation, effectively blocking sound wave penetration and effectively reducing the transmission of weak sound wave vibrations, blocking low-frequency noises such as air conditioner outdoor unit noise, surround sound from gaming hotel audio systems, and traffic noise. The front panel 13, middle panel 15, and rear panel 17 are preferably carbon crystal zero-degree paint-free decorative panels. In this embodiment, an automatic lifting sealing strip is provided at the bottom of the door leaf 1, and an installation groove for installing the automatic lifting sealing strip is provided at the bottom of the door leaf 1. The automatic lifting sealing strip can be the door gap automatic lifting sealing strip from DianDianZan Technology. A 7mm gap is left at the bottom of the door leaf 1, and an automatic lifting floor stop silent strip is installed to perfectly block sound transmission from all four sides of the door gap.

[0021] like Figure 3 and 4As shown, the door frame 2 includes a front door frame closing panel 21, a rear door frame closing panel 22, an outer panel 23, an inner rear panel 24, and an inner front panel 25. The inner front panel 25 is fitted to the side of the door leaf body 11. A solid wood strip filling layer 27 is provided between the front door frame closing panel 21, the rear door frame closing panel 22, the outer panel 23, the inner rear panel 24, and the inner front panel 25. A multi-step section that cooperates with the door leaf body 11 is provided at the connection between the inner rear panel 24 and the inner front panel 25. A multi-step elastic sound insulation strip 26 is provided on the multi-step section. In this utility model, a three-step elastic sound insulation strip is preferred. The inner rear panel 24 includes an inner rear outer panel 243, a second high-density sound insulation board 241, and an inner rear middle panel 242, which are fixed sequentially from the inside out. The second high-density sound insulation board 241 can be made of fiberglass, sound insulation felt, or sound insulation cotton. The connection between the inner rear panel 24 and the inner front panel 25 forms a first step 261 and a second step 262. A third step 263 is formed between the inner rear middle panel 242 and the inner rear outer panel 243. The multi-step elastic sound insulation strip 26 can be a three-step high-elasticity nylon sealing strip. The front door frame trim panel 21 and the rear door frame trim panel 22 are both L-shaped. One side of the rear door frame trim panel 22 is connected to the inner rear panel 24, and the other end is connected to the rear side of the outer panel 23 with a gap filled by a layer of wood strips. One end of the front door frame trim panel 21 is located between the outer panel 23 and the inner front panel 25, while the other end has a gap filled by a wood strip layer with the rear side of the outer panel 23. The outer side of the solid wood strip filling layer 27 is C-shaped under the limiting effect of the front door frame trim panel 21, the rear door frame trim panel 22, and the outer panel 23. The front door frame trim panel 21, the rear door frame trim panel 22, the outer panel 23, the inner front panel 25, and the inner rear outer panel 243 are carbon crystal zero-degree paint-free decorative panels. In this embodiment, the thickness of the door frame 2 is 40mm, the thickness of the outer panel 23 is 5mm, the thickness of the solid wood strip filling layer 27 in the inner and outer directions is 30mm, and the thickness of the inner front panel 25, the inner rear middle panel 242, and the inner rear outer panel 243 is 5mm.

[0022] The door leaf 1 of this utility model is formed by solid wood square strips 111 and sound-absorbing panels 112. A front damping sound insulation panel 12 and a rear damping sound insulation panel 14 are set on the front and rear sides of the door leaf body 11, and a first high-density sound insulation panel 16 is set on the rear side of the middle panel 15, which together form a multi-layer sound insulation combination structure. The door frame 2 is composed of an outer panel 23, a solid wood square strip filling layer 27 and an inner rear panel 24. A multi-step elastic sound insulation strip 26 is set between the door frame 1 and the door leaf 2. With the second high-density sound insulation panel 241 at the connection, it can effectively block mid-to-high frequency noise and low frequency noise in all directions.

[0023] Example 2 like Figure 5As shown, the difference between Embodiment 2 and Embodiment 1 is that: the first high-density sound insulation board 16 and the rear panel 17 are not set, the corresponding second step opening 19 is not formed, and the door frame 2 is provided with a matching second-step elastic sound insulation strip.

Claims

1. A soundproof and noise-reducing door set, characterized in that, Includes door leaf (1) and door frame (2); The door leaf (1) includes a door leaf body (11). A front damping sound insulation plate (12) and a front panel (13) are fixed to the front side of the door leaf body (11) in sequence. A rear damping sound insulation plate (14) and a middle panel (15) are fixed to the rear side of the door leaf body (11) in sequence. A first stepped opening (18) is formed between the two sides of the rear damping sound insulation plate (14) and the middle panel (15) and the door leaf body (11). The door frame (2) includes a front door frame closing panel (21), a rear door frame closing panel (22), an outer panel (23), an inner rear panel (24), and an inner front panel (25). The inner front panel (25) is attached to the side of the door body (11). A solid wood square strip filling layer (27) is provided between the front door frame closing panel (21), the rear door frame closing panel (22), the outer panel (23), the inner rear panel (24), and the inner front panel (25). A multi-level stepped part that cooperates with the door body (11) is provided at the connection between the inner rear panel (24) and the inner front panel (25). A multi-level elastic sound insulation strip (26) is provided on the multi-level stepped part.

2. The soundproof and noise-reducing door set according to claim 1, characterized in that, The door panel body (11) includes at least two solid wood strips (111) and sound-absorbing panels (112) disposed between adjacent solid wood strips (111), and each sound-absorbing panel (112) is provided with a vertically penetrating sound-absorbing hole (113).

3. The soundproof and noise-reducing door set according to claim 2, characterized in that, The middle panel (15) is provided with a first high-density sound insulation board (16) and a rear panel (17) in sequence on the rear side. The two sides of the first high-density sound insulation board (16) and the rear panel (17) form a second stepped opening (19) between the middle panel (15) and the middle panel (15).

4. The soundproof and noise-reducing door set according to claim 3, characterized in that, The inner rear panel (24) includes an inner rear outer panel (243), a second high-density sound insulation board (241), and an inner rear middle panel (242) fixed from the inside out.

5. The soundproof and noise-reducing door set according to claim 4, characterized in that, The connection between the inner rear panel (24) and the inner front panel (25) forms a first step (261) and a second step (262), and a third step (263) is formed between the inner rear middle panel (242) and the inner rear outer panel (243).

6. The soundproof and noise-reducing door assembly according to claim 5, characterized in that, Both the front door frame trim panel (21) and the rear door frame trim panel (22) are L-shaped. One side of the rear door frame trim panel (22) is connected to the inner rear panel (24), and the other end is connected to the rear side of the outer panel (23) with a gap filled by a wood strip layer. One end of the front door frame trim panel (21) is located between the outer panel (23) and the inner front panel (25), and the other end is connected to the rear side of the outer panel (23) with a gap filled by a wood strip layer.

7. The soundproof and noise-reducing door set according to claim 6, characterized in that, The bottom of the door leaf (1) is provided with an automatic lifting sealing strip, and the bottom of the door leaf (1) is provided with an installation groove for installing the automatic lifting sealing strip.

8. The soundproof and noise-reducing door set according to claim 2, characterized in that, The sound-absorbing panel (112) is a magnesium oxysulfate silicification board or a magnesium sulfate fireproof board; the front damping sound insulation board (12) and the rear damping sound insulation board (14) are both microcrystalline damping sound insulation boards.

9. The soundproof and noise-reducing door set according to claim 4, characterized in that, The front panel (13), middle panel (15) and rear panel (17) are carbon crystal zero-degree paint-free decorative panels; the front door frame trim panel (21), rear door frame trim panel (22), outer panel (23), inner front panel (25), and inner rear outer panel (243) are carbon crystal zero-degree paint-free decorative panels.

10. The soundproof and noise-reducing door assembly according to claim 4, characterized in that, The first high-density sound insulation board (16) and the second high-density sound insulation board (241) are glass fiber sound insulation boards, sound insulation felt sound insulation boards or sound insulation cotton sound insulation boards.

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