Limit switch and actuating mechanism

The utility model discloses a limit switch which comprises a hollow shell, two opposite end faces of the shell are provided with through holes which are coaxially arranged and used for a rotating shaft to penetrate through, a rotating induction block and at least two electromagnetic induction proximity switches are arranged in the shell, the rotating induction block is fixedly connected with the rotating shaft, and the electromagnetic induction proximity switches are arranged in the shell. The two electromagnetic induction proximity switches are located on the two sides of the rotating shaft respectively, the rotating induction block synchronously rotates along with the rotating shaft in the shell, and when the rotating shaft rotates to the positive and negative limit positions, the rotating induction block gets close to and triggers the electromagnetic induction proximity switch on the corresponding side. Position state monitoring is achieved in an electromagnetic induction mode, direct contact of parts is a