A sound insulation door structure for noise control

Abstract

The invention provides a sound-proof door structure for noise control, which includes a door frame, a main door body and a lock block; a main door body is movably installed on the inner side of the door frame through a rotating shaft. The setting of the sound insulation felt strip is beneficial to reduce the wear of the sound insulation strip. When passing through the sound insulation door, first press the control switch on the side where the user is, and then the control switch will control the four sets of electric push rods to drive the supporting steel plate and the sound insulation felt strip to At this time, the clamp strip and the lock block will also be separated from the outside of the main door body, and then the main door body can be rotated and pushed open. After the user passes through the soundproof door, press the control switch on the other side again, and the control switch will open. Re-control the four sets of electric push rods to push the supporting steel plate and the sound insulation felt strip to move inward, and then the clip strip will be re-embedded in the groove on the outside of the main door body to achieve the effect of sealing and sound insulation. During the process of opening and closing the door, the sound insulation felt The strip will not rub against the main door body, save effort when opening and closing the door and will not cause wear to the sound insulation felt strip, prolonging the service life.

Description

technical field [0001] The invention belongs to the technical field of noise prevention and control, and more specifically relates to an acoustic door structure for noise control. Background technique [0002] Acoustic doors are widely used in studios, theaters, broadcasting studios, sound engineers, cinemas, anechoic rooms, audiometry rooms, machine rooms, sound insulation enclosures, factories and other occasions that require noise control. Among them, the door gap between the door frame and the door leaf can directly affect the sound insulation effect of the sound insulation door. The greater the sound insulation value of the sound insulation door, the greater the impact of the door gap; the experiment shows that when the sound insulation door When the sound insulation is STC60, even if the sum of the door gaps only accounts for 0.001% of the sound insulation door, the sound insulation of the sound insulation door will drop from STC60 to STC50. [0003] For example, the ...

AI Technical Summary

Problems solved by technology

[0007] In order to solve the above-mentioned technical problems, the present invention provides a sound-proof door structure for noise control, to solve the problem that the door gap of the existing sound-proof door is usually fixed with a ring of sealing rings inside the door frame or outside the door body when performing sound insulation treatment. The sound-proof rubber ring can play the role of sealing and sound insulation, but when opening and closing the door, the friction between the door body or the door frame and the rubber ring is relatively large, it is more laborious to open and close the door, and the rubber ring is also more likely to cause wear and tear. The locking devices of the glottis are also installed inside the door body, because the thickness of the door body is mostly thin, and the part where the locking device is installed takes up more space on the door body, which affects the sound insulation effect of this part

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