Engine oil environment-friendly paper core not prone to breakage

The utility model belongs to the technical field of engine oil filtration, and particularly relates to a difficult-to-break engine oil environment-friendly paper core, which comprises a central tube and a filter paper structure, a paper core top cover is mounted at the top of the central tube, a paper core bottom cover is mounted at the bottom of the central tube, embedding grooves are formed in the paper core top cover and the paper core bottom cover, and the paper core top cover and the paper core bottom cover are connected with the filter paper structure. Embedding openings are formed in the paper core top cover and the paper core bottom cover, second springs are installed in the embedding openings, elastic blocks are fixed to one ends of the second springs, notches are formed in the inner side of the paper core top cover and the inner side of the paper core bottom cover, a filter paper structure is installed on the outer side of the center pipe, and a groove is formed in the top of the filter paper struct