JOINT DEVICE OF SOUNDPROOFING WALL WITH SOUND ABSORBING PERFORMANCE

摘要

The present invention relates to a soundproof wall joint device having a sound absorption function, including a fixation unit to fixate a pole and a soundproof plate. The soundproof wall joint device having a sound absorption function comprises: a holder having a cavity inside thereof to reduce noise from the outside by letting the noise flow into the cavity and fixate both sides of the soundproof plate to the pole by being inserted into a coupling groove of the pole; a plurality of sound absorption plates arranged in the cavity of the holder and having a plurality of sound absorption holes to reduce noise by making noise flowing in the cavity pass through in stages and be discharged to the outside of the cavity; and a slots arranged in the longitudinal direction of both inner sides of the holder to make both sides of the sound absorption plates be slid and coupled with the holder. As such, a noise colliding with the sound absorption plates, naturally scattered toward both sides of the sound absorption plates, and guided to the fixation unit is guided into the cavity of the holder and absorbed by passing through the sound absorption plates. Therefore, the fixation unit of the present invention can not only improve the performance of the soundproof wall but also perform a fixation function of fixating the soundproof plates to the pole.