Anchor rod drawing detection device

The invention belongs to the technical field of tension detection, and particularly relates to an anchor rod drawing detection device, which comprises an oil pump, a plurality of hydraulic cylinders, a plurality of hydraulic cylinders and a plurality of hydraulic cylinders, the pushing assembly comprises a plurality of jacks and a first mounting plate, each jack comprises a fixed end and a telescopic end, the number of the jacks is equal to that of the oil outlets, the jacks and the oil outlets are in one-to-one correspondence, the jacks are connected with the oil outlets through pipelines, and the fixed ends of the jacks are rotatably arranged on the first mounting plate; the telescopic ends of the jacks are arranged in parallel, the jacks are arranged around the anchor rod, the pushing assembly further comprises a second mounting plate, and the telescopic ends of the jacks are fixedly arranged on the second mounting plate; the force measuring piece is arranged on the second mounting plate, the anchor rod pe