1. The system employs parallel-type winches with sliding ring rope clamps, featuring high-precision spools. The rope threading holes of the two winches are located at both ends of the spools. The ropes for the upper and lower rails are fixed on the sliding rings of the parallel spools, ensuring the rope exit aligns vertically with the threading holes on the fabric. This simplifies rope threading and reduces friction. The sliding ring rope fixation and high-precision spools ensure neat and uniform rope arrangement, guaranteeing identical rope patterns for each spool in the system, consistent lifting heights, and level fabric alignment.  2. The system utilizes left and right pull bead heads to control the upper (middle) and lower rails of the curtain fabric. With a 1:3 reduction ratio, it delivers efficient force-saving and rapid lifting speeds. It enables independent control of the upper and lower rails for single-width fabric, allowing flexible adjustment of shading positions and light transmission. Additionally, it supports dual-layer fabric control (semi-transparent and opaque), enabling real-time room brightness adjustments for artistic curtain operation.  3. The system incorporates weightless clutches and parallel limiters. When the lower rail does not contact the upper (middle) rail, the pull bead heads at both ends independently control the free movement of the upper (middle) rail or lower rail. Upon contact, if the lower rail continues to rise, the weightless clutch mounted on the hexagonal shaft of the upper (middle) rail engages, disconnecting from the pull bead head. Under the limiter's action, the winch controlling the upper (middle) rail's vertical movement synchronizes with the winch driving the lower rail, ensuring simultaneous ascent to the limit position. This maintains neat and orderly spool winding, ensuring system operation.  4. The system's use of parallel winches, parallel controllers, and weightless clutches facilitates easy installation, long lifespan, and precise positioning.  5. The system supports honeycomb fabric widths of 38 or 45mm, or 25mm fabric. The main rail measures 50mm in width and 36mm in height, accommodating 2.4-meter-wide, up to 3-meter-high day-night honeycomb curtains. The maximum unloaded weight capacity is 4kg, with a 25% force-saving ratio.

Suitable for homes, hotels, guesthouses, conference rooms, etc