Pay-off device for surveying and mapping engineering

The utility model discloses a pay-off device for survey surveying and mapping engineering, and relates to the technical field of surveying and mapping engineering devices, the pay-off device comprises a pay-off device main body, the pay-off device main body comprises a cart, the top of the cart is provided with an electric winding reel, one side of the electric winding reel is provided with a moving device, and the other side of the electric winding reel is provided with a pay-off device main body. And a tensioning device is arranged on one side of the moving device. Through cooperation of the tooth column, the shell, the first threaded wheel, the second threaded wheel, the winding wheel, the fixing base, the fixing column, the first rotating wheel, a belt, a second rotating wheel, a moving rod, a rotating block, a fixing frame, a transmission device, a moving column and a buckling device, when the electric winding reel rotates, the winding wheel is driven to rotate through a pulling line; and when the movabl