Automatically opened and closed rainwater grate

The invention provides an automatically opened and closed rainwater grate. The automatically opened and closed rainwater grate comprises a rainwater grate module and a control circuit controlling opening/closing of the rainwater grate; the movable baffle of the rainwater grate module is embedded with or released from every drainage port of a grate component through protruded units to achieve opening and closing of the rainwater grate, which are driven by a driving device; the control circuit is used for controlling connection and disconnection of a rainfall control circuit and a fine weather control circuit according to detected rainfall signals to achieve control over forward or backward rotation of the motor of the driving device as well as automatic opening and closing of the rainwatergrate. The automatically opened and closed rainwater grate can ease the condition of clogging of drainage pipes and achieve good drainage effects. 本发明提供了种自动启闭式雨水篦子，包括雨水篦子组件与控制雨水篦子开/闭的控制电路，雨水篦子组件的可移动挡板以各凸出部与格栅构件的各排水口相嵌合或相脱离，形成