Sound insulation and noise reduction multi-layer structure

Abstract

The utility model discloses a sound insulation and noise reduction multilayer structure which comprises a door frame and a door plate, a plurality of sealing strips are arranged on the door frame, first grooves and second grooves are formed in the sealing strips, sealing blocks corresponding to the sealing strips are arranged on the door plate, buffer cavities are formed in the sealing blocks, and the buffer cavities are communicated with the first grooves and the second grooves. A supporting strip is arranged in the buffer cavity; the interior of the door plate is divided into a plurality of sound insulation cavities through supporting plates, sound insulation cylinders are arranged in the sound insulation cavities, and attraction sponges are arranged in the sound insulation cylinders. By arranging the sealing blocks and the sealing strips around the door plate and the door frame, the gap sealing effect between the door plate and the door frame is improved, and then external noise is reduced; the sound insulation felt board and the noise reduction board are arranged in the door board, the sound insulation cylinder is arranged between the sound insulation felt board and the noise reduction board, and the noise reduction effect of the door board is improved.

Description

Technical Field

[0001] This utility model relates to the field of door and window technology, specifically to a multi-layer structure for sound insulation and noise reduction. Background Technology

[0002] Publication number CN219101086U discloses an aluminum alloy door and window structure with a noise-reducing interlayer, including an inner beam. A sound insulation cavity is provided through the middle of the inner beam, and the sound insulation cavity is filled with sound insulation material. The sound insulation material inside the sound insulation cavity improves the sound insulation performance of the door and window structure. However, the above solution does not seal the gaps between the door panel and the door frame, or the gaps between the windows, allowing wind to blow through the gaps, which can cause noise. At the same time, external noise can also be transmitted through the gaps, resulting in poor sound insulation and noise reduction effect of the door and window, affecting normal life. Utility Model Content

[0003] In view of the above-mentioned technical deficiencies, the purpose of this utility model is to provide a multi-layer structure for sound insulation and noise reduction, so as to solve some or all of the above technical problems.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] This utility model provides a multi-layer structure for sound insulation and noise reduction, including a door frame and a door panel. The door frame is provided with a plurality of sealing strips, and the sealing strips have a first groove and a second groove. The door panel is provided with a sealing block corresponding to the sealing strips, and the sealing block has a buffer cavity. The buffer cavity is provided with a support strip. The interior of the door panel is divided into a plurality of sound insulation cavities by a support plate. The sound insulation cavities are provided with sound insulation cylinders, and the sound insulation cylinders are provided with sound-absorbing sponges.

[0006] Preferably, the first groove is disposed on both sides of the second groove, and the depth of the first groove is greater than the depth of the second groove.

[0007] Preferably, the buffer cavity has a semi-circular structure, the buffer cavity corresponds to the first groove, and the support bar has an arc-shaped structure, and the support bar is fixedly disposed on the inner wall of the buffer cavity.

[0008] Preferably, the soundproof cylinder has several through holes.

[0009] Preferably, a protrusion is provided between the two buffer cavities, and the protrusion corresponds to the second groove.

[0010] Preferably, the door panel is rotatably mounted on the door frame via a hinge.

[0011] Preferably, sound-insulating felt boards and noise-reducing boards are fixedly installed on both sides of the sound insulation cavity.

[0012] The beneficial effects of this utility model are as follows: by setting sealing blocks and sealing strips around the door panel and door frame, the sealing effect of the gap between the door panel and door frame is improved, thereby reducing external noise;

[0013] Sound insulation felt and noise reduction board are installed in the door panel, and a sound insulation cylinder is installed between the sound insulation felt and noise reduction board to improve the noise reduction effect of the door panel. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 A schematic diagram of a multi-layer structure for sound insulation and noise reduction provided in an embodiment of this utility model (viewpoint 1);

[0016] Figure 2 For Figure 1 Enlarged view of A in the middle;

[0017] Figure 3 A schematic diagram of a multi-layered structure for sound insulation and noise reduction (perspective two);

[0018] Figure 4 for Figure 3 Enlarged view of B in the middle;

[0019] Figure 5 This is a schematic diagram of the internal structure of the door panel;

[0020] Figure 6 This is a schematic diagram of the sound insulation felt board.

[0021] Figure 7 This is a schematic diagram of the noise reduction board.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1-Door frame, 2-Door panel, 3-Sealing strip, 31-First groove, 32-Second groove, 4-Sealing block, 41-Buffer cavity, 42-Support strip, 43-Protrusion, 5-Support plate, 51-Sound insulation cavity, 52-Sound insulation cylinder, 53-Sound absorbing sponge, 54-Through hole, 6-Sound insulation felt board, 7-Noise reduction board. 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] Example:

[0026] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, this utility model provides a multi-layer structure for sound insulation and noise reduction, including a door frame 1 and a door panel 2. The door frame 1 is provided with three sealing strips 3, each with a first groove 31 and a second groove 32. The first groove 31 is located on both sides of the second groove 32, and its depth is greater than that of the second groove 32. The door panel 2 is provided with sealing blocks 4 corresponding to the sealing strips 3. Each sealing block 4 has a buffer cavity 41, and a support strip 42 is provided inside the buffer cavity 41. The buffer cavity 41 has a semi-circular structure and corresponds to the first groove 31. A protrusion 43 is provided between the two buffer cavities 41, corresponding to the second groove 32, so that when the door panel 2 is closed, the two buffer cavities on one side of the door panel 2... The punch cavity 41 is engaged in the two first grooves 31, and the protrusion 43 is engaged in the second groove 32. The first groove 31 is deeper than the second groove 32, so that the door panel 2 is engaged in the sealing strip 3 on the door frame 1 by the sealing block 4. The buffer cavity 41 is engaged in the deeper first groove 31, which can prevent the door panel 2 from being dislodged from the door frame 1 due to vibration. The support strip 42 has an arc-shaped structure and is fixedly set on the inner wall of the buffer cavity 41. The arc-shaped support strip 42 is set in the buffer cavity 41, which can restore the compressed sealing strip 3 to its original shape, ensure the buffering effect of the buffer cavity 41, and prevent the buffer cavity 41 from being compressed. The cooperation between the sealing strip 3 and the sealing block 4 seals the gap between the door frame 1 and the door panel 2, avoiding noise generated by wind blowing through the gap.

[0027] Furthermore, such as Figure 5 , Figure 6 and Figure 7As shown, the interior of the door panel 2 is divided into multiple sound insulation cavities 51 by the support plate 5. A sound insulation cylinder 52 is installed inside the sound insulation cavity 51. The outer diameter of the sound insulation cylinder 52 is larger than the inner wall of the sound insulation cavity 51, so that the sound insulation cylinder 52 can be pressed against the inner wall of the sound insulation cavity 51. A sound-absorbing sponge 53 is installed inside the sound insulation cylinder 52. Multiple through holes 54 are opened on the sound insulation cylinder 52. Sound insulation felt 6 and noise reduction plate 7 are fixedly installed on both sides of the sound insulation cavity 51. When the door panel 2 is affected by sound, the vibration is first initially reduced by the sound insulation felt 6 and noise reduction plate 7. Then, the vibration is absorbed by the sound-absorbing sponge 53 installed inside the sound insulation cylinder 52 through the through holes 54, thereby improving the noise reduction effect of the door panel 2.

[0028] Working principle: First, the door panel 2 is secured in the first groove 31 and the second groove 32 on the sealing strip 3 by the buffer cavity 41 and the protrusion 43 on the sealing block 4, respectively, to seal the gap between the door panel 2 and the door frame 1. Then, the sound insulation felt board 6 and the noise reduction board 7 inside the door panel 2 perform initial noise reduction. Next, the noise enters the interior of the sound insulation cylinder 52 through the through hole 54. The sound-absorbing sponge 53 set inside the sound insulation cylinder 52 absorbs the noise by generating vibration, resulting in a better noise reduction effect.

[0029] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A sound insulation and noise reduction multilayer structure comprising a door frame (1) and a door panel (2), a plurality of sealing strips (3) being arranged on the door frame (1), characterized in that, The sealing strip (3) is provided with a first groove (31) and a second groove (32), the door plate (2) is provided with a sealing block (4) corresponding to the sealing strip (3), the sealing block (4) is provided with a buffer cavity (41), and the buffer cavity (41) is provided with a supporting strip (42). The inside of the door plate (2) is divided into several sound insulation cavities (51) by a supporting plate (5), the sound insulation cavities (51) are provided with sound insulation cylinders (52), and the sound insulation cylinders (52) are provided with sound absorption sponges (53).

2. A multi-layered soundproofing and noise reducing structure as claimed in claim 1, wherein, The first groove (31) is arranged on both sides of the second groove (32), and the depth of the first groove (31) is greater than that of the second groove (32).

3. A soundproofing and noise reducing multilayer structure according to claim 1, characterized in that, The buffer cavity (41) is a semicircular structure, the buffer cavity (41) corresponds to the first groove (31), and the supporting strip (42) is an arc-shaped structure and is fixedly arranged on the inner wall of the buffer cavity (41).

4. A soundproofing and noise reducing multilayer structure according to claim 1, characterized in that, The sound insulation cylinder (52) is provided with a plurality of through holes (54).

5. A soundproofing and noise reducing multilayer structure according to claim 3, characterized in that, The two buffer cavities (41) are provided with protrusions (43) corresponding to the second grooves (32).

6. A soundproofing and noise reducing multilayer structure according to claim 1, characterized in that, The door plate (2) is rotatably arranged on the door frame (1) by a hinge.

7. A soundproofing and noise reducing multilayer structure according to claim 1, characterized in that, Sound insulation felt plates (6) and noise reduction plates (7) are fixedly arranged on both sides of the sound insulation cavities (51).

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