A sound-absorbing device installed in the area near the traffic track in the city

Abstract

The invention belongs to the technical field of noise reduction, and discloses a noise reduction device installed in the area near the traffic track in the city, including a fixed box, the front of the fixed box is fixedly installed with a placement structure, and the interior of the placement structure is movable and clamped with a noise reduction device. structure, the top of the fixed box is provided with a chute, the inside of the chute is movably engaged with a stabilizing structure, and the back of the fixed box is provided with a reset mechanism. The present invention is provided with a chute so that the slider can slide inside the chute, and by connecting the connecting column and the stabilizing wing, the stabilizing wing is affected by the wind when the train enters the station and has a relatively large downward pressure, further stabilizing The cover plate is provided with the bottom and the transverse groove of the sound-absorbing plates that are mutually adapted and snapped together, so that multiple sound-absorbing plates are locked and fixed with each other, and the stabilization effect is doubled. Compared with the prior art, the present invention has the advantage of good stability .

Description

technical field [0001] The invention belongs to the technical field of noise reduction, and specifically relates to a noise reduction device arranged in an area near a traffic track in a city. Background technique [0002] Urban near-traffic track refers to a vehicle transportation system that adopts a track structure for load-bearing and guidance. Usually, a fully enclosed dedicated track line is set up to transport a certain scale of passenger traffic in the form of trains or bicycles. The urban near-traffic track mainly It is responsible for carrying subways, light rails, bicycles, trams and other vehicles running in the city. At present, it will generate a lot of noise when it is installed in the area near the traffic track in the city. The main source is the vehicle traction motor and its cooling fan and air compression. Among them, the noise impact after the train arrives at the station is the most serious, because passengers generally wait at the station, so it is nec...

AI Technical Summary

Problems solved by technology

[0003] The main form of the existing sound-absorbing devices that are used in urban areas near traffic tracks is assembled sound-absorbing panels, which are placed between the screen door of the station and the train to achieve sound-absorbing, but the train will brake when it is about to arrive at the station At this time, the friction between the wheel and the track becomes larger, causing severe shaking in the station area. The existing sound-absorbing panels do not have a buffer structure, which causes the assembled sound-absorbing panels to loosen under long-term vibration, thereby affecting the sound-absorbing effect. Moreover, When the train enters the station, there will be a lot of wind force, and the wind force will cause damage to the stability of the sound-absorbing panels in different scales. The existing sound-absorbing panels lack the structure to overcome the wind force

[0004] In the prior art, the sound-absorbing panels are mainly fixed by falcon joints or air nails, which is inconvenient to disassemble and install, and the replacement of some damaged sound-absorbing panels also becomes troublesome

[0005] In the process of noise reduction, the noise reduction effect of the existing noise reduction device is not good, which is mainly reflected in the simple structure, which relies too much on the sound absorption function of the noise reduction material, resulting in part of the noise rebounding, and then forming a larger noise

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