Closed multi-acoustic-interval resonance silencing wooden door structure

Abstract

The utility model discloses a closed multi-acoustic-interval resonance silencing wooden door structure, which belongs to the technical field of wooden door structure silencing, and is characterized by comprising a door frame structure and a door plate structure, the door plate structure is rotatably connected inside the door frame structure, and the door plate structure comprises a door core layer; noise elimination layers are arranged on the front side and the rear side of the door core layer correspondingly, a first sound insulation layer is arranged on the side, away from the door core layer, of each noise elimination layer, a sound absorption layer is arranged on the side, away from the noise elimination layer, of each first sound insulation layer, and a second sound insulation layer is arranged on the side, away from the first sound insulation layer, of each sound absorption layer. The panel layers are arranged on the portions, away from the sound absorption layer, of the second sound insulation layer, and the solid wood sealing plates are arranged on the peripheries between the opposite sides of the two panel layers, so that the problems that the sound insulation effect of an existing conventional wooden door structure is poor, the sound conduction problem caused by vibration caused by sound waves cannot be well solved, the usability of a wooden door is affected, and the service life of the wooden door is prolonged are solved. Therefore, the use effect is influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of wooden door structure sound insulation, in particular to a closed multi-acoustic interval resonance sound insulation wooden door structure. Background Art

[0002] Wooden doors, that is, wooden doors, can be divided into many categories according to material, craftsmanship and purpose. They are widely used in civil, commercial buildings and residences.

[0003] In today's society, people are seeking the security of their privacy, whether in public or at home. Therefore, doors, as partition devices, not only seek to separate rooms, but also need to have high requirements on sound insulation. However, the existing conventional wooden door structure has poor sound insulation effect, and cannot solve the problem of sound conduction caused by vibration caused by sound waves, which affects the usability of wooden doors. Utility Model Content

[0004] The utility model provides a closed multi-acoustic interval resonance sound-absorbing wooden door structure, aiming to solve the problem that the existing conventional wooden door structure has poor sound insulation effect and cannot well solve the problem of sound conduction caused by vibration caused by sound waves, which affects the usability of the wooden door and thus affects the use effect.

[0005] The utility model is implemented as follows: a closed multi-acoustic interval resonance sound-absorbing wooden door structure comprises a door frame structure and a door panel structure, wherein the door panel structure is rotatably connected to the inside of the door frame structure, and the door panel structure comprises a door core layer, the front and rear sides of the door core layer are both provided with a sound-absorbing layer, and a first sound insulation layer is provided on a side of the sound-absorbing layer away from the door core layer, a sound-absorbing layer is provided on a side of the first sound insulation layer away from the sound-absorbing layer, a second sound insulation layer is provided on a side of the sound-absorbing layer away from the first sound insulation layer, and a panel layer is provided on the second sound insulation layer away from the sound-absorbing layer, and solid wood sealing panels are provided around the sides between the two panel layers on opposite sides;

[0006] The sound-absorbing layer comprises a main body structure, and a plurality of spherical cavities are provided on a side of the main body structure away from the door core layer, and a hole neck is provided on a side of the spherical cavity away from the door core layer.

[0007] In order to achieve the effect of improving the service strength of the wooden door structure, as a preferred closed multi-acoustic interval resonance sound-absorbing wooden door structure of the utility model, the door core layer is composed of a bridge hole mechanical plate, and a plurality of holes are arranged inside it.

[0008] In order to achieve the effect of primary sound insulation, as a preferred closed multi-acoustic interval resonance sound-absorbing wooden door structure of the utility model, the first sound insulation layer is composed of polymer rubber-plastic sound insulation felt and is bonded to the side close to the door core layer.

[0009] In order to achieve the effect of absorbing noise, as a preferred closed multi-acoustic interval resonance sound-absorbing wooden door structure of the utility model, the sound-absorbing layer is made of sound-absorbing cotton and is bonded to a side close to the first sound insulation layer.

[0010] In order to achieve the effect of secondary sound insulation, as a preferred closed multi-acoustic interval resonance sound-absorbing wooden door structure of the utility model, the second sound insulation layer is composed of a mineral wool board and is bonded to a side close to the sound-absorbing layer.

[0011] In order to achieve the effect of protecting the internal structure of the door panel structure, as a preferred closed multi-acoustic interval resonance sound-absorbing wooden door structure of the utility model, the panel layer is composed of a wooden veneer and is bonded to the side close to the second sound insulation layer.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The closed multi-acoustic interval resonant sound-absorbing wooden door structure, by setting a sound-absorbing layer, because the hole neck is connected to the spherical cavity, the wavelength of the incident sound wave of the noise is much larger than the hole neck length, so the gas in the cavity can be regarded as an air spring to form a vibration system. Therefore, when the specific frequency in the environmental noise is equivalent to the natural frequency of the sound-absorbing layer, the noise can be made to resonate in the spherical cavity, so that the sound energy is converted into heat energy dissipation during the vibration process, thereby achieving the effect of closed multi-acoustic interval resonant sound absorption, and through the dual setting of the first sound insulation layer and the second sound insulation layer, multiple acoustic interfaces are formed to accelerate the transmission and attenuation of sound waves. At the same time, the sound-absorbing layer is conducive to the absorption of sound waves, so that the noise does not reflect, diffract, or resonate with other structures, thereby greatly improving the sound insulation effect of the wooden door structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is the overall structural diagram of the closed multi-acoustic interval resonance sound-absorbing wooden door structure of the utility model;

[0015] Figure 2 This is an exploded schematic diagram of the door panel structure of the utility model;

[0016] Figure 3 It is a schematic diagram of the decomposition of the sound-absorbing layer in the utility model.

[0017] In the figure, 1. door frame structure; 2. door panel structure; 3. door core layer; 4. sound-absorbing layer; 401. main structure; 402. spherical cavity; 403. hole neck; 5. first sound insulation layer; 6. sound-absorbing layer; 7. second sound insulation layer; 8. panel layer. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0019] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, in the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0020] See also Figure 1-3 The utility model provides a technical solution: a closed multi-acoustic interval resonance sound-absorbing wooden door structure, comprising a door frame structure 1 and a door panel structure 2, the door panel structure 2 is rotatably connected to the inside of the door frame structure 1, and the door panel structure 2 comprises a door core layer 3, the front and rear sides of the door core layer 3 are both provided with a sound-absorbing layer 4, and the side of the sound-absorbing layer 4 away from the door core layer 3 is provided with a first sound insulation layer 5, the side of the first sound insulation layer 5 away from the sound insulation layer 4 is provided with a sound absorbing layer 6, the side of the sound absorbing layer 6 away from the first sound insulation layer 5 is provided with a second sound insulation layer 7, and the side of the second sound insulation layer 7 away from the sound absorbing layer 6 is provided with a panel layer 8, and solid wood sealing panels are provided around the opposite sides of the two panel layers 8;

[0021] The sound-absorbing layer 4 comprises a main body structure 401 , and a plurality of spherical cavities 402 are formed on a side of the main body structure 401 away from the door core layer 3 , and a hole neck 403 is formed on a side of the spherical cavity 402 away from the door core layer 3 .

[0022] In this embodiment: by setting the sound-absorbing layer 4, since the hole neck 403 is connected with the spherical cavity 402, the wavelength of the incoming sound wave of the noise is much larger than the length of the hole neck 403, so the gas in the cavity can be regarded as an air spring to form a vibration system. Therefore, when the specific frequency in the environmental noise is equivalent to the natural frequency of the sound-absorbing layer 4, the noise can be made to resonate in the spherical cavity 402, so that the sound energy is converted into heat energy dissipation during the vibration process, thereby achieving the effect of closed multi-acoustic interval resonance sound absorption, and through the dual setting of the first sound insulation layer 5 and the second sound insulation layer 7, multiple acoustic interfaces are formed to accelerate the transmission and attenuation of sound waves. At the same time, the sound-absorbing layer 6 is conducive to the absorption of sound waves, so that the noise does not reflect, diffract, or resonate with other structures, which greatly improves the sound insulation effect of the wooden door structure.

[0023] As a technical optimization solution of the present invention, the door core layer 3 is composed of a bridge hole mechanical plate, and a plurality of holes are arranged inside it.

[0024] In this embodiment: by setting the door core layer 3 to be composed of a bridge hole mechanical plate, and due to the internal hole structure, the external force can be evenly dispersed to ensure that the wooden door structure does not deform, and the wooden door structure has good sound insulation and strength.

[0025] As a technical optimization solution of the present utility model, the first sound insulation layer 5 is made of polymer rubber-plastic sound insulation felt and is bonded to a side close to the door core layer 3 .

[0026] In this embodiment: by setting the first sound insulation layer 5 to be composed of polymer rubber-plastic sound insulation felt, a first-level sound insulation effect can be achieved, thereby improving the usability and effect of the wooden door structure.

[0027] As a technical optimization solution of the present invention, the sound absorbing layer 6 is made of sound absorbing cotton and is bonded to a side close to the first sound insulation layer 5 .

[0028] In this embodiment: by setting the sound-absorbing layer 6 to be composed of sound-absorbing cotton, it is beneficial to absorb sound waves, so that the noise does not reflect, diffract, or resonate with other structures, thereby greatly improving the sound insulation effect of the wooden door structure.

[0029] As a technical optimization solution of the present utility model, the second sound insulation layer 7 is made of a mineral wool board and is bonded to a side close to the sound absorbing layer 6 .

[0030] In this embodiment, the second sound insulation layer 7 is formed of a mineral wool board, which can be used together with the first sound insulation layer 5 to form multiple acoustic interfaces and accelerate the transmission and attenuation of sound waves.

[0031] As a technical optimization solution of the present invention, the panel layer 8 is made of a wooden veneer and is bonded to a side close to the second sound insulation layer 7 .

[0032] In this embodiment, by setting the panel layer 8 to be composed of a wooden veneer, the effect of protecting the structure between the two panel layers 8 can be achieved.

[0033] Working principle: First, by setting the sound-absorbing layer 4, since the hole neck 403 is connected with the spherical cavity 402, the wavelength of the incoming sound wave of the noise is much larger than the length of the hole neck 403, so the gas in the cavity can be regarded as an air spring to form a vibration system. Therefore, when the specific frequency in the environmental noise is equivalent to the natural frequency of the sound-absorbing layer 4, the noise can be made to resonate in the spherical cavity 402, so that the sound energy is converted into heat energy dissipation during the vibration process, thereby achieving the effect of closed multi-acoustic interval resonance sound absorption, and through the dual setting of the first sound insulation layer 5 and the second sound insulation layer 7, multiple acoustic interfaces are formed to accelerate the transmission and attenuation of sound waves. At the same time, the sound-absorbing layer 6 is conducive to the absorption of sound waves, so that the noise does not reflect, diffract, or resonate with other structures, which greatly improves the sound insulation effect of the wooden door structure.

[0034] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A closed multi-acoustic interval resonance sound-absorbing wooden door structure, comprising a door frame structure (1) and a door panel structure (2), characterized in that: The door panel structure (2) is rotatably connected to the interior of the door frame structure (1), and the door panel structure (2) comprises a door core layer (3), a sound-absorbing layer (4) is arranged on the front and rear sides of the door core layer (3), and a first sound insulation layer (5) is arranged on the side of the sound-absorbing layer (4) away from the door core layer (3), a sound-absorbing layer (6) is arranged on the side of the first sound insulation layer (5) away from the sound-absorbing layer (4), a second sound insulation layer (7) is arranged on the side of the sound-absorbing layer (6) away from the first sound insulation layer (5), and a panel layer (8) is arranged on the side of the second sound insulation layer (7) away from the sound-absorbing layer (6), and solid wood sealing panels are arranged around the two panel layers (8) on opposite sides; The sound-absorbing layer (4) comprises a main body structure (401), and a plurality of spherical cavities (402) are provided on a side of the main body structure (401) away from the door core layer (3), and a hole neck (403) is provided on a side of the spherical cavity (402) away from the door core layer (3).

2. A closed multi-acoustic zone resonance sound-absorbing wooden door structure according to claim 1, characterized in that: The door core layer (3) is composed of a bridge hole mechanical plate, and a plurality of holes are arranged inside the door core layer (3).

3. The closed multi-acoustic zone resonance sound-absorbing wooden door structure according to claim 1 is characterized by: The first sound insulation layer (5) is made of high molecular rubber-plastic sound insulation felt and is bonded to a side close to the door core layer (3).

4. The closed multi-acoustic zone resonance sound-absorbing wooden door structure according to claim 1 is characterized by: The sound absorbing layer (6) is made of sound absorbing cotton and is bonded to a side close to the first sound insulation layer (5).

5. The closed multi-acoustic zone resonance sound-absorbing wooden door structure according to claim 1 is characterized by: The second sound insulation layer (7) is made of a mineral wool board and is bonded to a side close to the sound absorption layer (6).

6. The closed multi-acoustic zone resonance sound-absorbing wooden door structure according to claim 1 is characterized by: The panel layer (8) is made of a wooden veneer and is bonded to a side close to the second sound insulation layer (7).

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