Pipe burying and paying-off device convenient to replace

The utility model discloses a buried pipe pay-off device convenient to replace, which comprises a buried pipe pay-off device, the top of the buried pipe pay-off device is provided with a fixing rod, the top of the fixing rod is provided with a fixing groove, the inside of the fixing groove is slidably connected with a moving plate, and the two sides of the top of the moving plate are fixedly connected with supporting wheels. The motor is started, the output end of the motor drives the worm to rotate, the worm rotates to drive the worm wheel to rotate, the worm wheel rotates to drive the screw rod to rotate, the screw rod rotates to drive the moving plate to move downwards, limiting of the supporting wheel to the clamping rod is canceled, and the clamping rod rotates into the fixing groove; and then a user takes out the used cable coil and then replaces the used cable coil with a new cable coil, so that the buried pipe pay-off device achieves the effect of conveniently replacing the cable coil, an existing mod