| 摘要 |
The connector has a spreading device (2) placed on a ring disk (1). Adjusting carriages (3) with supporting surfaces (4) and oval-tapered rollers (5) are arranged at a circumference of the spreading device for retracting the connector into a pipe. The spreading device is designed in form of radially aligned hollow double rods (7), which are uniformly distributed at a circumference of the ring disk. Each pair of the rods forms an isosceles triangle with an opened angle (8) at a tip, and a drive spindle on a base. Ends of the divergent rods are mutually movably connected with the base. |
