Novel protective cover with closing-up opening for small ship

The utility model discloses a novel small ship protective cover with a close-up opening, which structurally comprises a close-up opening positioning block, an upper connecting cover body, a stern connecting cover, a butt joint block, a side edge cover body, a connecting stay wire and an exhaust block, and is characterized in that the whole cover body is nested on a ship body; the cover body can be fixed to the ship body by positioning and fixing the closing-in positioning block and then pulling the connecting pull wire, when gas in the cover body needs to be quickly emptied, the exhaust block on the exhaust block can be pressed, and the exhaust block can be driven to slide on the butt joint cylinder; according to the protective cover, the exhaust block is arranged in the butt joint cylinder, the exhaust port in the exhaust block can be in butt joint with the connecting hole in the butt joint cylinder, redundant gas in the cover body can be exhausted through the exhaust port, then the exhaust block is loosened