Shading device for solar panel of thermal solar system, has lever arm that is movably mounted on sliding structure by pin, and spring that is arranged between housing and sliding structure

摘要

The shading device has housing (1), and variable-length expansion element (2). The expansion element is rigidly connected to a sliding structure (3). A lever arm (9) is movably mounted on the sliding structure by a pin (6). The pin arranged at the end of the lever arm is slidingly inserted into a recess (7) of the housing. A spring (4) is arranged between the housing and sliding structure. A film (10) is fixed at the lever arm.