Demolding mechanism for upside-down structure on product

The utility model discloses a demoulding mechanism for an upside-down structure on a product, which comprises a sliding block main body, the lower surface of the sliding block main body is sequentially provided with a sliding groove and a spring mounting cavity, and the central axes of the sliding groove and the spring mounting cavity coincide; a fixing plate is installed at the bottom of the sliding groove, a sliding cavity is defined by the fixing plate and the sliding groove, and a drag hook is movably installed in the sliding cavity. A limiting wall cavity is formed in one side wall of the sliding groove, a limiting block corresponding to the limiting wall cavity is detachably installed at the inner end of the drag hook, and the limiting block is arranged in the limiting wall cavity and slides relatively; a nitrogen spring is installed in the spring installation cavity, one end of the nitrogen spring abuts against the inner end of the drag hook, and the other end of the nitrogen spring is fixed to the sli