Can prevent twining wounded solar protection devices

The utility model discloses a can prevent twining wounded solar protection devices, including upper and lower guide rail and install in but the rolling sunshade thing between upper and lower guide rail, upward install operating system on the guide rail, operating system includes the gear box and installs the first attenuator and the second attenuator of gear box both sides, the rolling rope passes but inside first attenuator, gear box and the second attenuator of passing in proper order of rolling sunshade thing, it reaches to go up the guide rail be equipped with the concatenation groove between the lower guideway, the concatenation groove install in upper and lower guide rail both ends position, but rolling sunshade thing both sides are arranged in concatenation groove direction rolling and expansion can be followed to the concatenation inslot. The utility model discloses a solar protection devices adopts no stay cord structure, and the stay cord existence of avoiding exposing outside twines wounded potential safety hazard, and its easy operation is convenient, only needs can let its stop in the optional position pulling of sunshade thing with the hand, operates steadily. The utility model discloses a wholly beautifully, convenient operation and suitability are strong.