Oil drain valve structure of hydraulic pump of electric hydraulic horizontal jack

The utility model discloses an oil drain valve structure of a hydraulic pump of an electric hydraulic horizontal jack. The oil drain valve structure comprises a valve block and an oil drain valve arranged on the valve block, the driving part is in contact with the oil drain valve to form extrusion force on the oil drain valve to open the oil drain valve when moving, and the driver is used for controlling the driving part to move. Due to the arrangement of the driving part and the driver, when the oil drain valve needs to be opened, only the driver needs to be started, the driving part is pulled after the driver is started, the driving part extrudes the oil drain valve push rod through the inclined surface during action so as to drive the oil drain valve push rod to downwards extrude the valve element, and therefore the oil return channel is communicated for oil return; when the oil drain valve needs to be cut off or closed, the valve element can be driven to reset to be attached to the valve seat through the