Mechanical type hasp

The utility model relates to a mechanical type hasp, clasp the arm including casing and two, the one end of clasping the arm is located the inside of casing and is connected with the casing by rotating the hinge, and the other end is the outside that the crotch form just stretches out the casing, and two crotches of clasping the arm are held to buckle relatively and form one and are clasped the circle, still be equipped with a gangbar in the casing, inside the one end of gangbar was located the casing, the other end was stretched out by the opening of casing lateral wall, the outside cover ofgangbar is equipped with the sliding block, sliding block and clasp and be equipped with oblique pull rod between the arm, to one side the pull rod both ends through the rotational pin respectively with the sliding block with clasp the arm and be connected, the opening both sides of casing lateral wall still are equipped with the slide, still be equipped with the sliding pin that runs through itssurface on clasping the ar