Forest resource survey tree height estimation device

The utility model discloses a forest resource survey tree height estimation device. The device comprises a frame body and infrared rays, a connecting plate is arranged in the middle of the frame body;a graduated scale is fixed on the outer surface of the frame body; the outer surface of the frame body is connected with a pointer, the upper end of the frame body is connected with a connecting rod,the upper end of a first gear is engaged with a second gear, an infrared ray is fixed to the left end of the connecting rod, a measuring tape is installed at the lower end of a sliding block, a torsion spring is arranged in the measuring tape, and the upper surface of a connecting plate is connected with a height calculating instrument. The invention discloses a forest resource survey tree heightestimation device. The supporting legs can be limited within a certain range through the fixing angles of the limiting grooves, the lower ends of the supporting legs are sharp-corner-shaped and can be better fixed, the sharp-c