Anti-freezing heating device for guide rail of outdoor electric retractable door

The utility model provides an outdoor electric retractable door guide rail anti-freezing heating device which is laid below a guide rail matched with an electric retractable door and comprises a concrete base layer, a heat preservation layer, a reflecting film layer, a heating layer and a fine sand concrete layer which are sequentially arranged from bottom to top. And the heating wire is electrically connected with an external power supply. The device can heat the guide rail in an outdoor cold environment, and the electric retractable door is prevented from being broken down due to freezing in rainy and snowy weather. 本实用新型提供了一种户外电动伸缩门导轨防冰冻加热装置，铺设于与电动伸缩门配套的导轨下方，包括：由下到上依次设置的混凝土基层、保温层、反射膜层、加热层和细砂混凝土层，所述加热层内均匀铺设有发热线，所述发热线与外部电源电性连接。该装置能够在户外寒冷环境下对导轨加热，防止因雨雪天气结冰，造成电动伸缩门故障。