Hanging section stretching anchor rod stress automatic monitoring device and usage method thereof

The invention discloses a hanging section stretching anchor rod stress automatic monitoring device and a usage method thereof. One end of an external pipe (4) is connected with one end of an inner pipe (3) to form a connecting pipe, end parts of the connecting pipe are provided with protective covers, the inner pipe (3) is provided with at least a stretching device (9), the stretching device (2) is provided with a support pipe (10), an inner wall of the inner pipe (3) is provided with at least one vibrating wire transducer (5) and a collecting wire (9) electrically connected with the vibrating wire transducer (5), the other end of the inner pipe (3) is provided with a stretching device controller (8), and the other end of the external pipe (4) is provided with a pallet (6) and a fastening cap (7) with a baffle. According to the hanging section stretching anchor rod stress automatic monitoring device and the usage method thereof, the installation is rapid, and the usage is convenient.