Groove excavating device

The utility model discloses a groove excavating device which comprises a base, the base is fixedly connected with a stand column, the stand column is provided with a containing block, the containing block is fixedly connected with an extension rod, the extension rod is hollow, one end of the extension rod is provided with an opening, and a secondary rod is rotatably arranged in an inner cavity of the extension rod in a penetrating mode. The end, extending out of the opening of the extension rod, of the secondary rod is connected with a disc-shaped fixing block, the fixing block is located outside the opening end of the extension rod, the side wall of the fixing block is fixedly connected with a plurality of shovel plates in the circumferential direction of the fixing block, the containing block is hollow, a motor is arranged in an inner cavity of the containing block, and an output shaft of the motor is fixedly connected to the secondary rod. 本实用新型公开了一种沟槽挖掘装置，包括底座，所述底座固定连接有立柱，所述立柱设置有容纳块，所述容纳块固定连接有延伸杆，所述延伸杆呈中空