The invention relates to the technical field of
ditch drainage, in particular to a planting
ditch drainage device which comprises a frame mounted above a
ditch, a gate driven by a driving mechanism is slidably connected to an inner cavity of the frame, and a liquid level detection
assembly is arranged on the left side of the frame. According to the planting ditch drainage device, when drainage is not needed, an electric hoist lowers a gate, the gate descends along a frame, then the rear portion of the gate abuts against the left side of a sealing
gasket and continues to be pressed downwards, at the moment, the gate enters an inner concave section, the lower portion of the gate extrudes the upper portion of a waterproof pad, and an
extrusion air bag is extruded downwards through a bearing plate; then air in the
extrusion air bag enters the elastic air bag
cushion through the communicating pipeline, the elastic air bag
cushion extrudes the sealing
cushion towards the gate to seal the gap between the gate and the right side ditch, water can be effectively blocked, and the gate does not need to be lowered to the lowest side through the arrangement of the inner concave section; the normal closing and sealing of the gate cannot be influenced even if impurities and the like are arranged below for blocking.