Pumping unit packing box gland anti-falling hoop

Abstract

The invention discloses a pumping unit packing box gland anti-falling hoop, which includes a left half ring, a left non-slip rubber, a right half ring, a right non-slip rubber and fastening devices. The pumping unit packing box gland anti-falling hoop is characterized in that the left half ring and the right half ring are opposite to form a circular ring shape, the non-slip rubbers are fixed to the inner walls of the left half ring and the right half ring correspondingly, hinges are arranged at the ends, opposite with each other, of the left half ring and the right half ring correspondingly, two hinge center holes face each other, and a hinge pin shaft is inserted in the hinge holes; and the other ends of the left half ring and the right half ring can be opened oppositely, the fastening devices are arranged at the other ends, opposite with each other, of the left half ring and the right half ring, the fastening devices are provided with supporting clamping lugs on the outer sides of the left half ring and the right half ring correspondingly, the supporting clamping lugs can support a packing box gland and a pressing cap, the supporting clamping lugs are provided with U-shaped opening grooves correspondingly, and connected with butterfly nuts through bolts, wherein one sides of the bolts are fixed on one sides of the supporting clamping lugs through pins. Through operation usingthe pumping unit packing box gland anti-falling hoop, the oil well shutdown time is shortened, and the potential safety hazard is eliminated.

Description

technical field [0001] The invention relates to the technical field of oil recovery in oilfields, in particular to a safety anti-drop protection device for replacing the wellhead packing of a pumping unit, and is an anti-drop hoop for a gland of a pumping unit packing box. Background technique [0002] At present, in the oilfield production process, replacing the wellhead packing of the pumping unit is a relatively frequent daily maintenance work. In the past, when replacing the packing, operators often used iron wires to make hooks or use ropes and other items to fix the glands and caps by hanging on the rope hanger and binding the glands and caps of the packing box, and then In order to replace the packing operation. And when replacing the packing, the donkey head of the pumping unit should be stopped at or close to the bottom dead point before the gland and cap can be fixed. If the position of the pumping unit is not correct, the lower One-step operation, must stop pump...

AI Technical Summary

Problems solved by technology

[0005] Beneficial effects of the present invention: an anti-fall collar of the packing box gland of the pumping unit according to the present invention can be fixed on the polished rod of the wellhead of the pumping unit to block the gland and the cap of the packing box and prevent the gland and the pressure of the packing box. The cap slips off, which realizes the safety protection function in the operation of replacing the packing, solves the problem that the gland and the cap fall and hurt people when the pumping unit replaces the packing, reduces the operating time and labor intensity of the operator, and prolongs the time when the oil well is opened Rate

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