1results about How to "Extend the light time" patented technology

This utility model relates to the field of double-arch greenhouse technology, specifically a novel double-arch double-film solar greenhouse, including a rear wall and two gable walls. Several outer and inner arch frames are fixedly connected at intervals on the rear wall. The outer arch frames are covered with a light-transmitting film. A retractable inner cotton quilt roll is installed at the top of the inner arch frame, which is covered with a sunshade curtain. One end of the sunshade curtain is fixedly connected to the highest point of the inner arch frame, and the other end is wound around a first film roller, which is connected to the gable wall. An outwardly protruding support is fixedly connected to the top of the outer side of the rear wall. A baffle rod is fixedly connected to the outside of the support, and a retractable outer cotton quilt roll is installed inside the baffle rod. Frost-proof boards are installed at the bottom of all four sides of the greenhouse. This utility model improves upon the forward-leaning slope of the original greenhouse rear wall, allowing the outer cotton quilt roll to retract directly above the rear wall, reducing sunlight obstruction and increasing the light exposure time for crops near the rear wall. Simultaneously, the frost-proof boards at the bottom of the greenhouse further enhance heat preservation.