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A sound-absorbing and noise-reducing device

A noise reduction and noise reduction technology, applied in the direction of noise absorption devices, buildings, etc., can solve problems such as inability to buffer, and achieve strong safety protection and high economic use value

Active Publication Date: 2019-08-06
源沅(深圳)技术转移有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The invention has a significant noise reduction effect, but it cannot cushion the impact of impact

Method used

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  • A sound-absorbing and noise-reducing device
  • A sound-absorbing and noise-reducing device
  • A sound-absorbing and noise-reducing device

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0036] Combine below Figure 1-14 Describe this embodiment, a sound-absorbing and noise-reducing device, including a fixed frame plate 1, an anti-collision sound-absorbing component 2 and a sound-absorbing block 3, and the fixed frame plate 1 includes a rear sound insulation board 1-1, a left fixed plate 1-2, a right A fixed plate 1-3 and a plurality of sound wave reflection columns 1-4, the left and right ends of the rear sound insulation plate 1-1 are respectively fixedly connected to the left fixed plate 1-2 and the right fixed plate 1-3, and the rear sound insulation plate 1 A plurality of sound wave reflection columns 1-4 are uniformly arranged on the front surface of -1, and the plurality of sound wave reflection columns 1-4 are used to reflect sound waves, thereby weakening the transmission of sound;

[0037] The sound wave reflection column 1-4 includes a support column 1-4-1 and a polygonal pyramid 1-4-2, and the polygonal pyramid 1-4-2 is fixedly connected to one end...

specific Embodiment approach 2

[0040] Combine below Figure 1-14 Describe this embodiment, this embodiment will further explain Embodiment 1, a spring is sleeved on the sound wave reflection column 1-4, and the spring is located between the sound-absorbing block 3 and the rear sound insulation board 1-1, and the spring can be used for preventing The impact sound-absorbing component 2 has a better cushioning effect when it is impacted, and the anti-collision sound-absorbing component 2 can always be located at the front end of the device without being impacted or squeezed, so that the sound-absorbing block 3 and the sound wave reflection column 1-4 The spacing can ensure that the sound wave is reflected to the sound-absorbing block 3 through the polygonal pyramid 1-4-2.

specific Embodiment approach 3

[0042] Combine below Figure 1-14 Describe this embodiment, this embodiment will further explain Embodiment 1, the anti-collision sound-absorbing assembly 2 includes anti-collision block I2-1 and anti-collision block II2-2, and the anti-collision block I2-1 and anti-collision block II2 -2 is connected by bolts, the anti-collision block I2-1 and anti-collision block II2-2 are provided with grooves, and the grooves on the anti-collision block I2-1 and anti-collision block II2-2 are combined to form a plug hole 2-3, the cross-sectional shape of the jack 2-3 is the same as the cross-sectional shape of the support column 1-4-1, and the front aperture of the jack 2-3 is smaller than the rear aperture of the jack 2-3, so The cross-sectional area of ​​the front end of the jack 2-3 is smaller than the cross-sectional area of ​​the support column 1-4-1, and the cross-sectional area of ​​the rear end of the jack 2-3 is larger than the cross-sectional area of ​​the support column 1-4-1; w...

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Abstract

The invention relates to a sound absorption and noise reduction device, and particularly relates to the sound absorption and noise reduction device. The sound absorption and noise reduction device comprises fixed frame plates, anti-collision sound-absorption assemblies and sound attenuation blocks, wherein each fixed frame plate comprises a rear sound absorbing plate, a left fixed plate, a right fixed plate and a plurality of sound wave reflection columns; the left end and the right end of each rear sound absorbing plate are respectively connected with the corresponding left fixed plate and the corresponding right fixed plate; the plurality of sound wave reflection columns are uniformly arranged on the front end surface of the corresponding rear sound absorbing plate; each sound wave reflection column comprises a support column and a polygonal pyramid; each polygonal pyramid is fixedly connected to one end of each support column and the other end of each support column is fixedly connected to each rear sound absorbing plate; the plurality of anti-collision sound-absorption assemblies are arranged between one corresponding left fixed plate and one corresponding right fixed plate; the quantity of the anti-collision sound-absorption assemblies is identical to that of the sound wave reflection columns. The sound absorption and noise reduction device has the beneficial effects thatan optimal sound absorption and noise reduction effect is achieved, and a buffer effect on the sound absorption and noise reduction device can be achieved when the sound absorption and noise reductiondevice is hit.

Description

technical field [0001] The invention relates to a sound-absorbing and noise-reducing device, in particular to a sound-absorbing and noise-reducing device. Background technique [0002] Sound insulation means that when sound waves propagate in the air, various substances that are easy to absorb energy are used to consume the energy of the sound waves, so that the sound energy is blocked in the propagation path and cannot be passed directly. For example, a highway sound barrier with a patent application number of CN201510716078.8 includes a column, a beam, an anti-collision structure, a rubber vibration isolation layer, and a sound-absorbing sound-insulating board. Among them, the anti-collision structure is located on the outside of the road, and its top is provided with a rubber vibration isolation layer; there are multiple columns, located on the outside of the anti-collision structure; adjacent columns are connected by beams at the same height; the columns are inverted L-s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01F8/00
Inventor 赵佐平
Owner 源沅(深圳)技术转移有限责任公司
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