The engine oil
dipstick locking and sealing device comprises a
dipstick core and a
dipstick tube, the dipstick core comprises a
handle, a rotating mandrel, a dipstick, a pressing block, a sealing plug and a limiting block, the
handle, the rotating mandrel, the dipstick, the pressing block, the sealing plug and the limiting block are sequentially arranged and assembled from top to bottom, the upper end of the dipstick tube is an upper tube opening, and the lower end of the dipstick tube is a lower tube opening. A through hole I is formed in the center of the sealing plug, the limiting block is located below the sealing plug, a through hole II is formed in the center of the limiting block, the pressing block is located above the sealing plug, a
flange is arranged on the pressing block, the lower plane of the
flange makes contact with the upper end face of the ruler tube, and the bottom face of the pressing block tightly presses the sealing plug. A through hole III is formed in the center of the pressing block, and the ruler sequentially penetrates through the through hole III, the through hole I and the through hole II from top to bottom. By the adoption of the technical scheme, the structure is simple, operation is convenient and fast, better sealing and locking functions can be achieved, and terminal user operation is friendly.