Multifunctional protection device for sucker rod of oil well

The invention provides a multifunctional protection device for an oil well sucker rod. Relates to the technical field of oilfield oil extraction equipment. A load sensing mechanism is arranged between the upper portion of the hanging hammer of the hair braid and the rope penetrating block I. A compression spring is arranged between the outer side of the enclasping block and the guide hole I. A step notch is formed in the lower portion of the enclasping block in the direction facing the sucker rod, the outer face of the clamping hoop is clamped in the step notch of the enclasping block, and the clamping hoop is connected with the sucker rod in a fastened mode. The device has the following beneficial effects that the load sensing mechanism is arranged at the connecting part of the hair braid and the bearing block, the vibration influence of the sucker rod on the load sensing mechanism is reduced, the service life is prolonged, the data accuracy is improved, the damping effect in the load sensing mechanism reduc