Improved self-closing device

The utility model provides an improved self-closing device which is good in stability and simple in structure, and a drawer is more labor-saving to close. The shifting block is matched with the sliding block in a shifting mode through a connection groove in the top of the sliding block, the body is provided with a sliding guide structure and a spring groove which are communicated, the sliding block is arranged in the sliding guide structure, the spring is arranged in the spring groove and connected with the sliding block, a first sliding column is arranged at the front end of the sliding block, and a second sliding column is arranged below the connection groove and on the sliding block. The sliding guide structure comprises a cavity formed in the length direction of the main body strip, the side wall of the cavity is provided with a first horizontal guide groove allowing the first sliding column to slide and a second horizontal guide groove allowing the second sliding column to slide, the front end of the fir