Environmental noise reduction device

A noise reduction device and noise technology, applied in the fields of noise suppression, space heating and ventilation details, household heating, etc., can solve the problems of large noise at the exhaust outlet of the air conditioner, affecting daily life, etc.
CN108709302BActive Publication Date: 2020-07-14众坤北京航空设备有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
众坤北京航空设备有限公司
Publication Date
2020-07-14

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Abstract

The invention relates to an environment-friendly noise removing device which comprises a base and a shell. The shell is provided with a plurality of noise removing holes, a two-way lead screw is rotationally connected to the interior of the shell, the middle of the two-way screw is provided with a smooth portion, one end of the two-way lead screw penetrates through the shell and is fixedly connected with multiple rotary blades, the two ends of the two-way lead screw are in threaded connection with nuts, supporting air bags are arranged on the inner walls of the nuts, multiple abutting rods areevenly distributed on the supporting air bags, the free ends of the abutting rods are all face towards the circle centers of the nuts, the free ends of the abutting rods are fixedly connected with abutting blocks, the multiple abutting blocks can abut against each other and are spliced into a circular ring, and the abutting blocks are provided with threads. The two-way lead screw is sleeved witha noise removing air bag set which comprises multiple noise removing air bags, each noise removing air bag is provided with a reset spring, every two adjacent noise removing air bags have the height difference, first air guide pipes are arranged between the noise removing air bags at the two ends of the noise removing air bag set and the supporting air bags in a communicating mode, and the noise removing air bags are provided with air outlets. Noise produced by an air outlet of an air conditioner can be reduced.
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Description

technical field

[0001] The invention relates to the technical field of environmental protection and noise reduction, in particular to an environmental protection noise reduction device. Background technique

[0002] Noise is produced by the vibration of objects. Physiologically speaking, it is any sound that hinders people's normal rest, study and work, and the sound that interferes with the sound that people want to listen to. In this sense, there are many sources of noise, such as: the sound of cars on the street, the sound of talking in a quiet library, the sound of machinery on a construction site, and the loud sound of a neighbor's TV set are all noise. According to the mechanical characteristics of the sound source, noise pollution can be divided into: noise generated by gas disturbance, noise generated by solid vibration, noise generated by liquid impact, and electromagnetic noise generated by electromagnetic action.

[0003] The long-term impact on the human body in...

Claims

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