Automatic Peaceful Iron Courtyard Door for Noise-Sensitive Spaces

Engineered for convenience and quiet operation, the automatic peaceful iron courtyard door integrates smart technology with noise-reducing features. Equipped with a brushless DC motor and gear drive system, the door opens and closes silently (operation noise ≤45dB) at a customizable speed (0.3–1.2m/s). Sensors (infrared, microwave, or RFID) trigger the opening mechanism, while a soft-start/stop function prevents abrupt movements. The door panel is constructed from 3mm thick galvanized steel with a honeycomb core for sound absorption, achieving sound insulation of ≥32dB. Reinforced hinges with self-lubricating bearings support door weights up to 250kg, ensuring smooth operation over 500,000 cycles. Surface treatments include a zinc-nickel alloy electroplate (10μm) and polyurethane topcoat with anti-static properties, reducing dust accumulation. An emergency manual override and backup battery system ensure functionality during power outages. This door suits commercial complexes, hotels, or modern residences, offering hands-free access while maintaining a peaceful courtyard atmosphere.