Conveniently opened and closed lubricating oil filling door for suspension

The invention discloses a conveniently opened and closed lubricating oil filling door for a suspension. According to the technical scheme, the lubricating oil filling door comprises a luggage compartment baffle, wherein a door hole is formed in the luggage compartment baffle; a filling door frame is arranged in the door hole; a flexible rubber strip is arranged at the periphery of the filling door frame; a filling door plate is arranged on the lower part of the filling door frame through a single-shaft hinge; a fixing nut is arranged on the upper part of the filling door frame; and a bolt hole and a fastening bolt matched with the fixing nut are arranged on the top of the filling door plate. The lubricating oil filling door has the advantages that the lubricating oil filling door is simple in structure, low in machining and manufacturing cost and convenient to operate; the door can be conveniently opened so as to fill lubricating oil on the premise that the original structure and parts are not destroyed; when