Noise reduction structure of equipment unit

Abstract

The utility model relates to the technical field of noise reduction of equipment units, and discloses a noise reduction structure of an equipment unit. The noise reduction structure comprises a concrete layer, a damping supporting assembly, a brick layer and a ceiling assembly, and a containing cavity is formed in the concrete layer; the damping supporting assembly is arranged in the containing cavity, and a mounting position for mounting the equipment unit is formed above the damping supporting assembly. The bricking layer is arranged in the accommodating cavity and surrounds the mounting position; the suspended ceiling assembly comprises a sound insulation suspended ceiling, an elastic connecting piece and an elastic damping piece, the sound insulation suspended ceiling is arranged in the brick layer and arranged above the installation position, the elastic connecting piece is connected with the sound insulation suspended ceiling and the inner wall of the containing cavity, and the elastic damping piece is arranged between the sound insulation suspended ceiling and the brick layer. According to the utility model, noise reduction and vibration isolation can be effectively carried out on the equipment unit.

Description

Technical Field

[0001] This utility model relates to the field of equipment unit noise reduction technology, specifically to an equipment unit noise reduction structure. Background Technology

[0002] Theaters and other music venues use a large number of equipment units, which are usually located below the theater. Some of these equipment units generate noise and vibration during operation, affecting the audience's experience.

[0003] CN110748021A discloses a soundproofing device for theaters, including multiple connectors embedded in the wall. Vertical keels are detachably connected to the connectors in the wall, and a soundproofing mechanism is detachably connected between two adjacent keels. The keels have symmetrical slots on opposite sides, and the horizontal cross-section of the slots is T-shaped. The slots are located on the side of the keel closest to the wall. The soundproofing mechanism includes a soundproofing plate and a sound-absorbing plate inserted into the slots.

[0004] The aforementioned soundproofing devices for theaters only soundproof the theater walls, failing to block noise at its source, resulting in limited soundproofing and noise reduction effects. Utility Model Content

[0005] The purpose of this utility model is to overcome the above-mentioned technical deficiencies and propose a noise reduction structure for equipment units, thereby solving the technical problem that the existing technology does not isolate noise at the source.

[0006] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution:

[0007] This utility model provides a noise reduction structure for an equipment unit, including a concrete layer, a vibration damping support assembly, a brick masonry layer, and a ceiling assembly. The concrete layer forms a receiving cavity; the vibration damping support assembly is built into the receiving cavity, and an installation position for installing the equipment unit is formed above it; the brick masonry layer is built into the receiving cavity and surrounds the installation position; the ceiling assembly includes a soundproof ceiling, an elastic connector, and an elastic vibration damper. The soundproof ceiling is built into the brick masonry layer and is positioned above the installation position. The elastic connector connects the soundproof ceiling and the inner wall of the receiving cavity, and the elastic vibration damper is disposed between the soundproof ceiling and the brick masonry layer.

[0008] In one embodiment, the brickwork layer connects the top and bottom inner walls of the receiving cavity.

[0009] In one embodiment, the brick masonry layer is spaced apart from the circumferential inner wall of the receiving cavity, with a spacing greater than 200 mm.

[0010] In one embodiment, the soundproof ceiling includes a first light steel keel layer and a first cement fiber layer connected together, wherein the first cement fiber layer is disposed on the side of the light steel keel layer near the installation position.

[0011] In one embodiment, the soundproof ceiling further includes a second light steel keel layer, a second cement fiber layer, a sound insulation layer, and a third cement fiber layer disposed on the side of the first cement fiber layer near the installation position. The second light steel keel layer, the second cement fiber layer, the sound insulation layer, and the third cement fiber layer are connected in sequence and arranged in sequence in a direction away from the first cement fiber layer.

[0012] In one embodiment, both the first light steel keel layer and the second light steel keel layer are filled with glass wool layers.

[0013] In one embodiment, the distance between the first light steel keel layer and the top inner wall of the receiving cavity is greater than 200 mm.

[0014] In one embodiment, the second light steel keel layer is spaced apart from the first cement fiber layer.

[0015] In one embodiment, the elastic connector includes an anchor, a connecting shell, a first nut, a screw, a second nut, an elastic part, a third nut, and a fourth nut. The anchor is partially embedded in the concrete layer. The connecting shell is sleeved on the anchor. The first nut is built into the connecting shell and threadedly connected to the anchor. One end of the screw is rotatably extended into the connecting shell, and the other end passes sequentially through the first light steel keel layer, the first cement fiber layer, the second light steel keel layer, the second cement fiber layer, the sound insulation layer, and the third cement fiber layer. The second nut is built into the connecting shell and threadedly connected to the screw. The elastic part is disposed between the second nut and the inner wall of the connecting shell. The third nut is threadedly connected to the screw and abuts against the side of the first cement fiber layer opposite to the first light steel keel layer. The fourth nut is threadedly connected to the screw and abuts against the side of the third cement fiber layer opposite to the sound insulation layer.

[0016] In one embodiment, an elastic buffer layer is provided between the connecting shell and the inner wall of the receiving cavity, between the first nut and the inner wall of the connecting shell, and between the elastic part and the inner wall of the connecting shell.

[0017] Compared with existing technologies, the noise reduction structure for the equipment unit provided by this utility model uses a concrete layer to provide a solid foundation and serve as the first sound barrier; a brick layer to enhance sound insulation, absorbing and reflecting sound waves; a soundproof ceiling to isolate vibrations and noise transmitted towards the top of the cavity, further isolating noise and reducing the transmission of noise generated by equipment operation to the top; through built-in vibration damping support components, the equipment unit is installed on the vibration damping support components, which can effectively reduce the transmission of vibrations generated by equipment operation to the building structure, thereby reducing the noise propagated through the structure; elastic connectors ensure a flexible connection between the soundproof ceiling and the inner wall of the cavity, which can reduce the transmission of vibrations from the soundproof ceiling to the concrete layer; elastic damping components act as a buffer between the soundproof ceiling and the brick layer, which can prevent vibrations from being transmitted between the soundproof ceiling and the brick layer, and can also seal the gap between the soundproof ceiling and the brick layer; the noise reduction structure for the equipment unit can achieve noise reduction and vibration damping between the equipment unit and the outside world, and can treat noise at the source. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the noise reduction structure of the equipment unit provided in this embodiment of the utility model;

[0019] Figure 2 yes Figure 1 A magnified view of a portion of point A in the middle;

[0020] Figure 3 yes Figure 1 A magnified view of a portion of point B in the middle.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Concrete layer; 1a cavity; 2. Vibration damping support assembly; 2a mounting position; 3. Brick layer; 4. Ceiling assembly; 41. Soundproof ceiling; 41. First light steel keel layer; 412. First cement fiber layer; 413. Second light steel keel layer; 414. Second cement fiber layer; 415. Sound insulation layer; 416. Third cement fiber layer; 42. Elastic connector; 421. Anchor; 422. Connecting shell; 423. First nut; 424. Screw; 425. Second nut; 426. Elastic part; 427. Third nut; 428. Elastic buffer layer; 429. Elastic damping component; 43. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0024] To address the technical problem of not isolating noise at its source, this utility model provides a noise reduction structure for equipment units that can reduce noise and vibration between the equipment unit and the outside world, thus treating noise at its source.

[0025] It should be noted that the noise reduction structure of the equipment unit described in this utility model is used in, but not limited to, theaters, etc. For ease of explanation, this utility model only uses the application of the noise reduction structure of the equipment unit in a theater as an example. The principle of the noise reduction structure of the equipment unit in other types of places is essentially the same as that in theaters, and will not be described in detail here.

[0026] Please see Figure 1 , Figure 1 This is a schematic diagram of the noise reduction structure of the equipment unit in one embodiment of the present invention. The noise reduction structure of the equipment unit includes a concrete layer 1, a vibration damping support component 2, a brick masonry layer 3, and a ceiling component 4. The concrete layer 1 forms a receiving cavity; the vibration damping support component 2 is built into the receiving cavity 1a, and an installation position 2a for installing the equipment unit is formed above it; the brick masonry layer 3 is built into the receiving cavity 1a and surrounds the installation position 2a; the ceiling component 4 includes a soundproof ceiling 41, an elastic connector 42, and an elastic damping component 43. The soundproof ceiling 41 is built into the brick masonry layer 3 and is set above the installation position 2a. The elastic connector 42 connects the soundproof ceiling 41 and the inner wall of the receiving cavity 1a. The elastic damping component 43 is disposed between the soundproof ceiling 41 and the brick masonry layer 3.

[0027] Specifically, the above structure is used for installation under the theater, but can also be used for installation in other locations. The concrete layer 1 provides a solid foundation and acts as the first sound barrier; the brick layer 3 enhances sound insulation, absorbing and reflecting sound waves; the soundproof ceiling 41 isolates vibrations and noise transmitted towards the top of the cavity 1a, further isolating noise and reducing the transmission of noise generated by equipment operation towards the top; the equipment unit is mounted on the built-in vibration damping support assembly 2, effectively reducing the transmission of vibrations generated during equipment operation to the building structure, thereby reducing noise propagation through the structure; the elastic connector 42 ensures a flexible connection between the soundproof ceiling 41 and the inner wall of the cavity 1a, reducing the transmission of vibrations from the soundproof ceiling 41 towards the concrete layer 1; the elastic damping component 43 acts as a buffer between the soundproof ceiling 41 and the brick layer 3, preventing vibration transmission between them and sealing the gap between them.

[0028] It should be understood that the shock-absorbing support component 2 can be a spring shock absorber or a rubber shock absorber, etc., and the number of shock-absorbing support components 2 can be one, two or more, etc. Specifically, in one embodiment, the number of shock-absorbing support components 2 is multiple, and the multiple shock-absorbing support components 2 are arranged at intervals.

[0029] It should be understood that the mounting position 2a can be a support platform formed by combining multiple shock-absorbing support components 2, or it can be a support plate and support seat set on the support platform.

[0030] It should be understood that the brick masonry layer 3 can be formed by stacking concrete blocks or by stacking other structures. The brick masonry layer 3 can have openings for personnel to enter and exit, and soundproof doors (not shown in the figure) can be installed at the openings.

[0031] It should be understood that the elastic damping component 43 can be a polyurethane damping pad or a rubber damping pad, etc.

[0032] It should be understood that the brickwork layer 3 can be spaced apart from the top inner wall of the receiving cavity 1a, or it can be connected to the top inner wall of the receiving cavity 1a. Specifically, for example... Figure 1 As shown, in one embodiment, the brickwork layer 3 connects the top and bottom inner walls of the receiving cavity 1a.

[0033] The brick masonry layer 3 connects the top and bottom inner walls, forming a more stable support structure, reducing the impact of vibration on the brick masonry layer 3 during equipment operation; the brick masonry layer 3 can more effectively isolate noise within the accommodating cavity 1a, reducing the possibility of noise propagating through the inner wall, thereby improving the overall sound insulation effect.

[0034] It should be understood that the brick masonry layer 3 can be attached to the concrete layer 1 or spaced apart from it. Specifically, for example... Figure 1 As shown, in one embodiment, the brick masonry layer 3 is spaced apart from the circumferential inner wall of the receiving cavity 1a, and the spacing is greater than 200mm.

[0035] Setting intervals can create a space for sound wave attenuation, where sound waves are reflected and absorbed multiple times, thus effectively reducing noise transmission.

[0036] The soundproof ceiling 41 can be made of gypsum board, mineral wool board, wood, etc. Specifically, such as... Figure 2 As shown, in one embodiment, the soundproof ceiling 41 includes a first light steel keel layer 411 and a first cement fiber layer 412 connected to each other, with the first cement fiber layer 412 disposed on the side of the light steel keel layer near the installation position 2a.

[0037] In this embodiment, the light steel keel layer can provide a sturdy support frame to ensure the overall stability of the soundproof ceiling 41; the first cement fiber layer 412 can increase the compressive strength and durability of the ceiling, prevent deformation or damage, and at the same time, the first cement fiber board can absorb mid-to-high frequency sound, thereby achieving wide-band noise control.

[0038] To further enhance the sound insulation effect of the soundproof ceiling 41, therefore, as Figure 2 As shown, in one embodiment, the soundproof ceiling 41 further includes a second light steel keel layer 413, a second cement fiber layer 414, a sound insulation layer 415, and a third cement fiber layer 416 disposed on the side of the first cement fiber layer 412 near the installation position 2a. The second light steel keel layer 413, the second cement fiber layer 414, the sound insulation layer 415, and the third cement fiber layer 416 are connected in sequence and arranged in sequence in a direction away from the first cement fiber layer 412.

[0039] In this embodiment, the light steel keel layer enhances structural strength and provides additional support; the third cement fiber layer 416 has good sound insulation and sound absorption effects, providing initial sound insulation; the sound insulation layer 415 is specifically designed to further block noise, and the third cement fiber layer 416 is used to further enhance the sound insulation effect and provide additional protection; the multi-layer structure design not only improves the sound insulation effect but also enhances the stability of the entire ceiling system, preventing deformation or damage caused by vibration or external forces; the use of multi-layer materials, especially the high fire resistance and heat insulation properties of the second cement fiber layer 414 and the third cement fiber layer 416, gives the entire soundproof ceiling 41 system higher fire resistance and heat insulation performance.

[0040] Among them, the elastic damping component 43 is disposed between the first cement fiber layer 412, the second light steel keel layer 413, the second cement fiber layer 414, the sound insulation layer 415 and the third cement fiber layer 416 and the brick masonry layer 3.

[0041] It should be understood that the sound insulation layer 415 can be damping sound insulation felt or sound insulation cotton, etc.

[0042] Light steel keel is generally a frame structure, and there are sound-permeable cavities in the frame structure. In order to further improve the sound insulation effect of the first light steel keel layer 411 and the second light steel keel layer 413, in one embodiment, both the first light steel keel layer 411 and the second light steel keel layer 413 are filled with glass wool layers.

[0043] Glass wool material is filled into the cavity of the first light steel keel layer 411 and the second light steel keel layer 413 to form a glass wool layer. The glass wool layer can seal the cavity, and at the same time, the glass wool material also has a good sound absorption effect and can suppress the transmission of noise.

[0044] It should be understood that the first light steel keel layer 411 can be fitted to the inner wall of the receiving cavity 1a, or it can be spaced apart from the inner wall of the receiving cavity 1a. Specifically, for example... Figure 1 As shown, in one embodiment, the distance between the first light steel keel layer 411 and the top inner wall of the receiving cavity 1a is greater than 200mm.

[0045] By setting an appropriate distance between the first light steel keel layer 411 and the top inner wall of the receiving cavity 1a, a space for sound wave attenuation can be formed. Sound waves are reflected and absorbed multiple times in this area, thereby effectively reducing noise transmission. At the same time, the appropriate distance reduces the direct contact between the first light steel keel layer 411 and the inner wall of the receiving cavity 1a, reducing the noise amplification phenomenon caused by resonance.

[0046] It should be understood that the second light steel keel layer 413 can be attached to the first cement fiber layer 412, or it can be spaced apart from the first cement fiber layer 412. Specifically, for example... Figure 2 As shown, in one embodiment, the second light steel keel layer 413 and the first cement fiber layer 412 are spaced apart.

[0047] The spacing between the second light steel keel layer 413 and the first cement fiber layer 412 can form a space for sound wave attenuation. Sound waves are reflected and absorbed multiple times in this area, thereby effectively reducing noise transmission. The spacing between the second light steel keel layer 413 and the first cement fiber layer 412 reduces the direct contact between them, thus reducing the noise amplification caused by resonance.

[0048] It should be understood that the elastic damping element 43 can be an elastic rope, an elastic rod, or a spring, etc. Figure 2 and Figure 3 As shown, in one embodiment, the elastic connector 42 includes an anchor 421, a connecting shell 422, a first nut 423, a screw 424, a second nut 425, an elastic part 426, a third nut 427, and a fourth nut 428. The anchor 421 is partially embedded in the concrete layer 1. The connecting shell 422 is sleeved on the anchor 421. The first nut 423 is built into the connecting shell 422 and threadedly connected to the anchor 421. One end of the screw 424 extends rotatably into the connecting shell 422, and the other end passes sequentially through the first light steel keel layer 411 and the first cement fiber layer. 412, second light steel keel layer 413, second cement fiber layer 414, sound insulation layer 415 and third cement fiber layer 416, second nut 425 is built into connecting shell 422 and threadedly connected to screw 424, elastic part 426 is disposed between second nut 425 and inner wall of connecting shell 422, third nut 427 is threadedly connected to screw 424 and abuts against the side of first cement fiber layer 412 away from first light steel keel layer 411, fourth nut 428 is threadedly connected to screw 424 and abuts against the side of third cement fiber layer 416 away from sound insulation layer 415.

[0049] When it is necessary to connect the first light steel keel layer 411, the first cement fiber layer 412, the second light steel keel layer 413, the second cement fiber layer 414, the sound insulation layer 415, and the third cement fiber layer 416 to the inner wall of the receiving cavity 1a, the anchor 421 is anchored in the concrete layer 1, the connecting shell 422 is fitted onto the anchor 421, and then the first nut 423 is threaded to the anchor 421. One end of the screw 424 is inserted into the connecting shell 422, and the other end passes through the first light steel keel layer 411, the first cement fiber layer 412, the second light steel keel layer 413, the second cement fiber layer 414, the sound insulation layer 415, and the third cement fiber layer 416 in sequence. The second nut 425 is placed inside the connecting shell 422 and threaded to one end of the screw 424. The elastic part 426 is provided between the connecting shell 422 and the second light steel keel layer 411, the first cement fiber layer 412, the second light steel keel layer 413, the second cement fiber layer 414, the sound insulation layer 415, and the third cement fiber layer 416. Between nuts 425, the third nut 427 and the fourth nut 428 are respectively connected to the screw 424, and the third nut 427 and the fourth nut 428 respectively abut against the first cement fiber layer 412 and the third cement fiber layer 416, realizing the connection between the first light steel keel layer 411, the first cement fiber layer 412, the second light steel keel layer 413, the second cement fiber layer 414, the sound insulation layer 415 and the third cement fiber layer 416 and the inner wall of the receiving cavity 1a, realizing the spacing between the first cement fiber layer 412 and the second light steel keel layer 413. At the same time, the elastic part 426 can also realize the elastic connection between the first light steel keel layer 411, the first cement fiber layer 412, the second light steel keel layer 413, the second cement fiber layer 414, the sound insulation layer 415 and the third cement fiber layer 416 and the inner wall of the receiving cavity 1a.

[0050] It should be understood that the anchor 421 can be an anchor nail, expansion bolt, etc.; the elastic part 426 can be a spring, elastic block, etc.

[0051] To avoid abnormal noise caused by compression between the connecting shell 422, the inner wall of the receiving cavity 1a, the first nut 423, and the elastic part 426, therefore, as follows: Figure 3 As shown, in one embodiment, an elastic buffer layer 429 is provided between the connecting shell 422 and the inner wall of the receiving cavity 1a, between the first nut 423 and the inner wall of the connecting shell 422, and between the elastic part 426 and the inner wall of the connecting shell 422.

[0052] By providing an elastic buffer layer 429, the elastic buffer layer 429 can separate the connecting shell 422 from the inner wall of the receiving cavity 1a, the first nut 423 from the inner wall of the connecting shell 422, and the elastic part 426 from the inner wall of the connecting shell 422, thereby avoiding hard contact between the two and playing an elastic buffering and vibration reduction role.

[0053] The elastic buffer layer 429 can be made of rubber, latex, silicone, etc.

[0054] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A noise reduction structure for a generator set, characterized in that, include: A concrete layer forms a cavity; A shock-absorbing support assembly is built into the receiving cavity, and a mounting position for installing equipment units is formed above it; A brick masonry layer, built into the receiving cavity and arranged around the mounting position; and The ceiling assembly includes a soundproof ceiling, an elastic connector, and an elastic damping component. The soundproof ceiling is built into the brick masonry layer and positioned above the installation location. The elastic connector connects the soundproof ceiling to the inner wall of the receiving cavity. The elastic damping component is disposed between the soundproof ceiling and the brick masonry layer.

2. The noise reduction structure for the equipment unit according to claim 1, characterized in that: The brickwork layer connects the top and bottom inner walls of the receiving cavity.

3. The noise reduction structure for the equipment unit according to claim 2, characterized in that: The brick masonry layer is spaced apart from the circumferential inner wall of the cavity, with a spacing greater than 200 mm.

4. The noise reduction structure for the equipment unit according to claim 1, characterized in that: The soundproof ceiling includes a first light steel keel layer and a first cement fiber layer connected to each other, with the first cement fiber layer disposed on the side of the light steel keel layer near the installation position.

5. The noise reduction structure for the equipment unit according to claim 4, characterized in that: The soundproof ceiling also includes a second light steel keel layer, a second cement fiber layer, a sound insulation layer, and a third cement fiber layer disposed on the side of the first cement fiber layer near the installation position. The second light steel keel layer, the second cement fiber layer, the sound insulation layer, and the third cement fiber layer are connected in sequence and arranged in sequence in a direction away from the first cement fiber layer.

6. The noise reduction structure for the equipment unit according to claim 5, characterized in that: Both the first and second light steel keel layers are filled with glass wool layers.

7. The noise reduction structure for the equipment unit according to claim 5, characterized in that: The distance between the first light steel keel layer and the top inner wall of the receiving cavity is greater than 200mm.

8. The noise reduction structure for the equipment unit according to claim 5, characterized in that: The second light steel keel layer is spaced apart from the first cement fiber layer.

9. The noise reduction structure for the equipment unit according to claim 5, characterized in that: The elastic connector includes an anchor, a connecting shell, a first nut, a screw, a second nut, an elastic part, a third nut, and a fourth nut. The anchor is partially embedded in the concrete layer. The connecting shell is sleeved on the anchor. The first nut is built into the connecting shell and threadedly connected to the anchor. One end of the screw is rotatably extended into the connecting shell, and the other end passes sequentially through the first light steel keel layer, the first cement fiber layer, the second light steel keel layer, the second cement fiber layer, the sound insulation layer, and the third cement fiber layer. The second nut is built into the connecting shell and threadedly connected to the screw. The elastic part is disposed between the second nut and the inner wall of the connecting shell. The third nut is threadedly connected to the screw and abuts against the side of the first cement fiber layer away from the first light steel keel layer. The fourth nut is threadedly connected to the screw and abuts against the side of the third cement fiber layer away from the sound insulation layer.

10. The noise reduction structure for the equipment unit according to claim 9, characterized in that: An elastic buffer layer is provided between the connecting shell and the inner wall of the receiving cavity, between the first nut and the inner wall of the connecting shell, and between the elastic part and the inner wall of the connecting shell.

Images