Patent attributes
A simple engaging device comprises a locating base with at least a longitudinal hole, and at least a locating stem with an engaging head and a joining part corresponding to the longitudinal hole. Two flat locating parts are oppositely disposed at two lateral sides of the longitudinal hole; each flat locating part has a slant plane, a first slender retaining projection, a step, and a second slender retaining projection; the slant plane makes the joining part easy to be assembled and is capable of tightly guiding the joining part to reach the first slender retaining projection at which the joining part can be retained firmly without loosening, and the step and the second slender retaining projection are capable of engaging with the joining part in case of the engaging head and the joining part being worn out.
