| 摘要 |
<p>Disclosed is a multi-piece combined turnover louver blade which includes a main blade (1) and rotary blades (2). The main blade (1) is composed of an outside blade (11) and an inside blade (12) integrated together. A juncture part of the two blades is formed at the inner end of the outside blade (11) in the width direction and the outer end of the inside blade (12) in the width direction. An included angle 1 is formed between the outside blade (11) and the outside horizontal plane of the louver blade, and an included angle 2 is formed between the inside blade (12) and the inside horizontal plane of the louver blade. The rotary blades (2) are arranged on the main blade (1), rotatably connected with the main blade (1) and driven to rotate by a mechanism. A sun-shading and light-guiding louver system formed by the multi-piece combined turnover louver blades can achieve the optimization of controlling retro-reflection and deflection import volume of direct sunlight according to season change and specific requirements of persons. High transmissivity is simultaneously kept whether solar altitude angle is high or low.</p> |
