The invention provides a connecting device which can prevent the opening and closing rod from moving in the opening direction so that the opening part of the hook is accidentally opened and can be easily manufactured.A pair of fastening holes 20 are arranged on both sides of the hook 2 base of the connector main body 3.21,The two ends of the misoperation preventing member 23 are provided with inward bending and are buckled to the above pair of buckle holes 20.21 one pair of snap parts 26.27,In order to prevent misoperation, the middle part 23a of the member 23 moves freely from the front end side of the hook 2 towards the open operation body 13.And the middle part 23a of the misoperation preventing member 23 is energized from the front end side of the hook 2 toward the open operating body 13.Make the above pair of snap parts 26.27 and a pair of buttonholes 20.Their axes are staggered.And a stop 28 is arranged on the main body 3 of the connector.It resists the activation of the misoperation preventing member 23 and blocks the halfway part 23a of the misoperation preventing member 23 near the open operator 13.本發明提供一種可防止開閉桿於開放方向移動使得鉤之開口部意外地打開、且可容易地製造之連結具。於連結具主體3之鉤2基部之兩側設有一對扣止孔20、21，於誤動作防止構件23之兩端部設有向內方彎曲並扣合於上述一對扣止孔20、21之一對扣合部26、27，以使誤動作防止構件23之中途部23a自鉤2之前端側朝向開放操作體13離合移動自如、且將誤動作防止構件23之中途部23a自鉤2之前端側朝向開放操作體13賦能之方式，使上述一對扣合部26、27及一對扣止孔20、21其軸心相互錯開；且於連結具主體3上設有止擋28，其抵抗誤動作防止構件23之賦能而在靠近開放操作體13之位置擋住誤動作防止構件23之中途部23a。
