A kind of bidirectional controllable separate locking button features that the soft line or soft strip can form the line segment, pressing line segment, reversing line segment, pressed line segment, and controlline segment on the cylinder, hole, reversing cylinder and pressure transmission plate, with smooth convex curved surface each. The bidirectional separate locking structure is therefore formed. It enables the soft line or soft strip locked, unlocked, shifted leftwards or rightwards, and controlled freely. This idea of separate locking structure extends the design of this kind of products significantly and posseses more than 30 applications in our daily life. The product is featured of small size and flexible, convenient in usage and with a operating method in conformity with human daily custom, so it can be used without learning in advance. |