Anchoring device of prestressed reinforced material

The present invention provides an anchoring device of prestressed reinforced material, the bottom of the bolt shaft of the external device of the invention fixedly connected to a displacement transducer, displacement transducer means inside two connected together and a small cylindrical structure, a cylindrical structure disposed large displacement transducers external cavity means, connected to the fixed structure is provided at the opening of a small cylindrical displacement transducer external apparatus, a small cylindrical structure with an outer end of the web member, a large cylindrical the radially outer wall of the ring structure of the external device is provided with a set of displacement transducers between an inner wall of the ball, is provided between the inner side of the opening plane of the large displacement transducers external cylindrical structure means the structure of a small cylindrical side another group of ball. The present invention can be easily and accurately applied to the prestressing reinforcements, reinforcements and to avoid rotation while being able to control the prestress reinforcement material, and may be adjusted according to the construction of prestressed and a secondary usage.