Dual -purpose clamping rail of permanent rectangular flashlight pincers

The utility model provides a dual -purpose clamping rail of permanent rectangular flashlight pincers. At present, the clamping rail tonger has characteristics such as simple structure, flexible operation, nevertheless also has simultaneously shortcomings such as the difficult adjustment of clamp force, and the practicality is not strong. The utility model discloses a constitution includes: the box, box (1) is articulated through the axis of ordinates (15) and link (16), and it is articulated with fixed arm (20) that the link passes through cross axle (17), box (1) is connected through bolt and location wheel (19), gear A (4) are installed through screw connection, the motor shaft of motor in box and motor (3), gear A and gear B (5) meshing, gear B and axle A (6) install gear C (8) through key -type connection, an axle A, gear C and gear D (9) meshing, gear D passes through the key -type connection with two -way lead screw (11), two -way lead screw is controlled both ends and is installed slider (10) respectiv