A sound insulation structure for a door and a door frame

Abstract

The utility model relates to sound insulation door technical field especially, relate to a sound insulation structure of door and door frame. The utility model wants to solve the technical problem provides a kind of sound insulation structure of door and door frame, which can significantly improve sound insulation effect, and structure is stable and reliable. A kind of sound insulation structure of door and door frame, including door frame and the door body that is hinged in the door frame by hinge;The side of the door frame towards the door body is equipped with ladder groove, the edge of the door body is adapted with the ladder groove, and the bottom of the ladder groove is fixedly provided with sound insulation sealing strip;The cavity is provided in the door frame, and the cavity is filled with door frame sound insulation material;The door body includes outer door panel, inner door panel and the frame connected to the outer door panel and the outer side edge of the inner door panel, and the outer door panel, inner door panel and frame jointly enclose door body cavity. The utility model reaches the effect of significantly improving sound insulation performance, and structure is stable and reliable.

Description

Technical Field

[0001] This utility model relates to the field of soundproof door technology, and in particular to a soundproof structure for a door and door frame. Background Technology

[0002] With the increasing demands of society for acoustic environments in residential, office, and special locations, soundproof doors, as key components ensuring privacy and quietness, are of paramount importance. Existing soundproof doors generally improve sound insulation by increasing door weight or filling with a single sound-insulating material. However, this single approach has significant limitations: the door is too heavy, placing extremely high demands on the load-bearing capacity of the hinges and door frame, and its effectiveness in isolating low-frequency noise is poor. Furthermore, traditional single-cavity filling structures easily form sound bridges within the door, allowing sound, especially resonant sound waves, to easily penetrate. Therefore, there is an urgent need to develop a soundproofing structure for doors and door frames that can significantly improve sound insulation while maintaining structural stability and reliability. Utility Model Content

[0003] In order to overcome the shortcomings of existing soundproof doors that generally improve sound insulation by increasing the weight of the door or filling it with a single sound insulation material, resulting in poor sound insulation, this utility model aims to provide a sound insulation structure for a door and door frame that can significantly improve sound insulation and has a stable and reliable structure.

[0004] This utility model is achieved by the following specific technical means: A soundproofing structure for a door and door frame includes a door frame and a door body hinged within the door frame. The door frame has a stepped groove on one side facing the door body, the stepped groove fitting the edge of the door body, and a soundproof sealing strip fixedly installed at the bottom of the stepped groove. A cavity is provided inside the door frame, filled with door frame soundproofing material. The door body includes an outer door panel, an inner door panel, and a frame connecting the outer edges of the outer and inner door panels, the outer door panel, inner door panel, and frame together forming the door body cavity. A first soundproofing layer, a second soundproofing layer, and a vacuum soundproofing panel are sequentially arranged within the door body cavity from the outer door panel towards the inner door panel. The vacuum soundproofing panel includes a panel body with a vacuum chamber inside, and a supporting structure is provided within the vacuum chamber. A vacuum extraction port connected to the vacuum chamber is provided on one side of the panel body, and the vacuum extraction port is sealed.

[0005] Furthermore, the supporting structure consists of crisscrossing support partitions that divide the vacuum chamber into multiple interconnected sub-chambers; this ensures the structural stability of the vacuum chamber while reducing solid-borne sound transmission and ensuring sound insulation.

[0006] Furthermore, both the outer door panel and the inner door panel are metal plates; their high density characteristics efficiently reflect and dissipate sound wave energy while providing robust support and protection.

[0007] Furthermore, the first sound insulation layer is made of high-density gypsum board; high-density gypsum board has excellent sound insulation performance and good fire resistance.

[0008] Furthermore, the second sound insulation layer is made of rock wool; through its numerous tiny pores, sound waves entering it generate intense air friction and viscous resistance, thereby converting sound energy into heat energy and consuming it.

[0009] Compared with the prior art, the present invention has the following beneficial effects: This invention achieves a significant improvement in sound insulation while maintaining a stable and reliable structure. Attached Figure Description

[0010] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0011] Figure 2 This is a partial cross-sectional view of the present invention.

[0012] Figure 3 This is a cross-sectional view of the vacuum sound insulation panel of this utility model.

[0013] The labels in the attached diagram are as follows: 1-door frame, 2-door body, 3-hinge, 4-soundproof sealing strip, 11-door frame soundproofing material, 21-outer door panel, 22-inner door panel, 23-frame, 24-first soundproofing layer, 25-second soundproofing layer, 26-vacuum soundproofing panel, 261-panel body, 262-supporting structure, 263-vacuum port. Detailed Implementation

[0014] The present invention will be further described below with reference to the accompanying drawings: Example

[0015] A soundproofing structure for doors and door frames, such as Figure 1-3As shown, the device includes a door frame 1 and a door body 2 hinged within the door frame 1 by hinges 3. A stepped groove is formed on the side of the door frame 1 facing the door body 2, the stepped groove fitting the edge of the door body 2, and a sound-insulating sealing strip 4 is fixedly installed at the bottom of the stepped groove. A cavity is formed inside the door frame 1, and the cavity is filled with door frame sound-insulating material 11. The door body 2 includes an outer door panel 21, an inner door panel 22, and a frame 23 connecting the outer door panel 21 and the outer door panel 22's outer edges. 21. The inner door panel 22 and the frame 23 together form a cavity for the door body 2; a first sound insulation layer 24, a second sound insulation layer 25 and a vacuum sound insulation board 26 are arranged sequentially from the outer door panel 21 to the inner door panel 22 in the cavity of the door body 2; the vacuum sound insulation board 26 includes a board body 261, and a vacuum chamber is provided inside the board body 261, and a support structure 262 is provided inside the vacuum chamber; a vacuum port 263 connected to the vacuum chamber is provided on one side of the board body 261, and the vacuum port 263 is sealed.

[0016] Working principle: This invention utilizes a multi-layered, multi-material composite sound insulation design to effectively block and dissipate sound wave energy, thereby achieving highly efficient sound insulation. When sound waves impact the outside of the door 2, they are initially blocked by the outer door panel 21. The outer door panel 21, being a metal plate, reflects most of the sound waves due to its high density, effectively reducing the transmission of sound energy. After passing through the outer door panel 21, the sound waves enter the first sound insulation layer 24 within the cavity of the door 2. The first sound insulation layer 24 is made of high-density gypsum board. High-density gypsum board has a high density and excellent sound insulation performance, further blocking and reflecting sound waves. Its good fire resistance also enhances the safety of the door 2. Subsequently, the sound waves reach the second sound insulation layer 25, which is made of rock wool. The second sound insulation layer 25 is filled with numerous micropores and fiber structures. When sound waves enter, they experience intense air friction and viscous resistance as they travel through these pores, effectively converting the sound energy. The sound waves are converted into heat and consumed, significantly weakening their intensity. After being attenuated multiple times, the remaining sound waves eventually reach the core vacuum soundproof panel 26. The vacuum chamber inside this panel is close to a state without a sound wave propagation medium, fundamentally blocking the airborne sound transmission path of the sound waves. The crisscrossing support partitions inside the chamber maintain structural stability and prevent the panel 261 from collapsing. Their discrete arrangement also minimizes the solid-borne sound bridge effect and reduces the solid-borne sound transmitted through the support structure 262. At the junction of the door body 2 and the door frame 1, the stepped groove and the soundproof sealing strip 4 at its bottom constitute a key gap seal. When the door is closed, the edge of the door body 2 presses against the sealing strip, forming a tight acoustic seal, effectively preventing sound waves from leaking from the door gap. At the same time, the door frame 1, filled with door frame soundproofing material 11, can also absorb and block lateral sound waves that attempt to propagate through the door frame 1 structure.

[0017] Although this disclosure has been described in detail with reference to exemplary embodiments, it is not limited thereto, and it will be apparent to those skilled in the art that various modifications and changes may be made thereto without departing from the scope of this disclosure.

Claims

1. A sound insulation structure for a door and door frame, characterized in that, The system includes a door frame (1) and a door body (2) hinged to the door frame (1) via a hinge (3); the door frame (1) has a stepped groove on one side facing the door body (2), the stepped groove is adapted to the edge of the door body (2), and a soundproof sealing strip (4) is fixedly installed at the bottom of the stepped groove; the door frame (1) has a cavity inside, and the cavity is filled with door frame soundproofing material (11); the door body (2) includes an outer door panel (21), an inner door panel (22), and a frame (23) connecting the outer door panel (21) and the outer edge of the inner door panel (22). 1) The inner door panel (22) and the frame (23) together form a cavity of the door body (2); the cavity of the door body (2) is provided with a first sound insulation layer (24), a second sound insulation layer (25) and a vacuum sound insulation board (26) in sequence from the outer door panel (21) to the inner door panel (22); the vacuum sound insulation board (26) includes a board body (261), the board body (261) is provided with a vacuum chamber, and a support structure (262) is provided in the vacuum chamber; a vacuum port (263) connected to the vacuum chamber is provided on one side of the board body (261), and the vacuum port (263) is sealed.

2. The sound insulation structure for a door and door frame according to claim 1, characterized in that, The support structure (262) consists of crisscrossing support partitions that divide the vacuum chamber into multiple interconnected sub-chambers.

3. The sound insulation structure for a door and door frame according to claim 1, characterized in that, Both the outer door panel (21) and the inner door panel (22) are metal plates.

4. The sound insulation structure for a door and door frame according to claim 1, characterized in that, The first sound insulation layer (24) is high-density gypsum board.

5. The sound insulation structure for a door and door frame according to claim 1, characterized in that, The second sound insulation layer (25) is rock wool.

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