Telescopic mechanism of walking device of wetland excavator

The utility model relates to the technical field of excavators and discloses a telescopic mechanism of a walking device of a wetland excavator, which comprises a main body, a walking structure is arranged on the side wall of the main body, and a telescopic device is arranged in the main body. The telescopic device comprises a fixed cylinder, a fixed plate, a bearing, a screw rod, a telescopic sleeve, a connecting plate, a motor, a rotating rod, a first bevel gear, a second bevel gear and a guide device, a user can start the motor to drive the rotating rod at an output shaft of the motor to rotate, and the rotating rod rotates to drive the first bevel gear on the surface of the rotating rod to rotate; the first bevel gear drives the second bevel gear meshed with the first bevel gear and the screw rods in the first bevel gear to rotate, the two sets of screw rods synchronously rotate through synchronous belt transmission, the screw rods rotate to drive the telescopic sleeves on the surfaces of the screw rods to