Tensioning device

The utility model discloses a tensioning device which comprises a moving seat, a tensioning device and a tensioning device. The mounting mechanism is arranged on the moving seat and is used for mounting main rattans of the rattan bridge; and the telescopic mechanism is provided with a telescopic rod, and the telescopic rod is connected with the moving seat and used for driving the moving seat to move so that the main rattan can be tensioned. When the tensioning device works, the telescopic rod firstly controls the moving seat to move to the side close to the rattan bridge, then an operator installs the main rattan on the hanging mechanism, the rattan bridge is not tensioned at the moment, namely, the main rattan is not tensioned, so that the main rattan is easily installed on the hanging mechanism, then the telescopic rod works to enable the moving seat to move towards the side away from the rattan bridge, and then the main rattan is installed on the hanging mechanism. And at the moment, the main rattan can b