CN2602151Y

CN2602151Y - Small-size safety hook for pumping rod

Info

Publication number: CN2602151Y
Application number: CN 02259156
Authority: CN
Inventors: 张敬福; 王天正; 王志安; 孙月东; 石光仁
Original assignee: 孙月东
Priority date: 2002-10-09
Filing date: 2002-10-09
Publication date: 2004-02-04
Anticipated expiration: 2012-10-09

Abstract

The utility model provides a safe sucker rod crotchet for the oil-field workover operation consisting of a flying ring, a pin roll of the flying ring, a shielding cover, a teleflex, a looseness-proof pin, a shaft pin, a handle, a locking pin, a wirerope, a hook body, a frame cover, a torsional spring, a pin roll of a safety shield, a shielding cap, a bolt and a safety shield. The utility model solves the unhooking problem in the process of the suck rod being lifted or lowered when a collision occurs, avoids the accidents of human injuries or machinery damages, guarantees safety in production, improves labor conditions of the employees and has a higher economic and social benefit.

Description

The little hook of a kind of sucker rod safety

The utility model is the workover tool in the oil well repairing operation, particularly is the little hook of a kind of sucker rod safety.

In the oil well repairing operation process, will be one from oil well, puts forward of sucker rod, one by one following in oil well again after the completion, hang the suspension ring of sucker rod jig and put into the suspension hook that hangs sucker rod, because suspension hook is an opening, in the process of lifting or whereabouts, runs into collision and easily produce the unhook problem, cause machinery or personal injury accident, the influence safety in production.

The purpose of this utility model is developed the little hook of a kind of sucker rod safety exactly, prevents that effectively suspension ring are deviate from suspension hook when playing lower sucker rod, guarantees safe production.

Above-mentioned purpose is realized by following technical proposals:

The little hook of this sucker rod safety is made up of suspension ring, suspension ring bearing pin, interstage sleeve, pivoted housing, check pin, pivot pin, handle, safetied pin, wire rope, coupler body, backplate, torsion spring, safety screen bearing pin, retaining cap, screw and safety screen.Suspension ring are fixed on the pivoted housing with being threaded, and fix with check pin, and interstage sleeve is fixed on the coupler body axle with being threaded, and lock interstage sleeve with the suspension ring bearing pin, and pivoted housing is fixed on the coupler body axle by interstage sleeve, and suspension ring can rotate along the coupler body axle.Handle is fixed on the pivot pin, can rotate along pivot pin, safety screen is fixed on the safety screen bearing pin, can rotate along the safety screen bearing pin, and have torsion spring that its safety screen is resetted, handle is connected by wire rope with safety screen, one of wire rope is contained on the safety screen with the retaining cap, and the other end is fixed on the handle with safetied pin, pulling and decontrol handle, the drive safety screen rotates, and can open and close the suspension hook mouth.Backplate is screwed.

After technique scheme enforcement, solve sucker rod and in the process of removing, run into the unhook problem that collision produces, avoid causing machinery or personal injury accident, ensured safety in production, improved worker's condition of labor, high economic benefit and social benefit are arranged.

Accompanying drawing 1 is a structure chart of the present utility model.

In conjunction with the accompanying drawings embodiment of the present utility model is described below:

Among the figure, the 1st, suspension ring, the 2nd, suspension ring bearing pin, the 3rd, interstage sleeve, the 4th, pivoted housing, the 5th, check pin, the 6th, pivot pin, the 7th, handle, the 8th, safetied pin, the 9th, wire rope, the 10th, coupler body, the 11st, backplate, the 12nd, torsion spring, the 13rd, safety screen bearing pin, the 14th, retaining cap, the 15th, screw, the 16th, safety screen.

Suspension ring 1 usefulness is threaded and is fixed on the pivoted housing 4, and fixing with check pin 5, interstage sleeve 3 usefulness are threaded and are fixed on the coupler body axle, and locks interstage sleeves 3 with suspension ring bearing pin 2, and pivoted housing 4 is fixed on the coupler body axle by interstage sleeve 3, and suspension ring 1 can rotate along the coupler body axle.Handle 7 is fixed on the pivot pin 6, can rotate along pivot pin 6, safety screen 16 is fixed on the safety screen bearing pin 13, can rotate along safety screen bearing pin 13, and there is torsion spring 12 that its safety screen 16 is resetted, handle 7 is connected by wire rope 9 with

safety screen

16, and 9 one of wire rope are contained on the safety screen with retaining cap 14, and the other end is fixed on the handle 7 with safetied pin 8.Pulling handle 7 drives safety screen 16 and rotates, and can open the suspension hook mouth, the suspension ring that hang the sucker rod jig are put into suspension hook, and release handle 7 is under the effect of torsion spring 12, drive safety screen 16 and rotate, close the suspension hook mouth, prevent that effectively suspension ring are deviate from suspension hook when playing lower sucker rod.Same method can be opened the suspension hook mouth, takes out from suspension hook hanging sucker rod jig suspension ring.Backplate 11 usefulness screws 15 are fixing, protection safety screen bearing pin 13, torsion spring 12 and safety screen 16.

Claims

1, the little hook of a kind of sucker rod safety is characterized in that being made up of suspension ring, suspension ring bearing pin, interstage sleeve, pivoted housing, check pin, pivot pin, handle, safetied pin, wire rope, coupler body, backplate, torsion spring, safety screen bearing pin, retaining cap, screw and safety screen; Suspension ring are fixed on the pivoted housing with being threaded, and fix with check pin, and interstage sleeve is fixed on the coupler body axle with being threaded, and lock interstage sleeve with the suspension ring bearing pin, and pivoted housing is fixed on the coupler body axle by interstage sleeve, and suspension ring can rotate along the coupler body axle; Handle is fixed on the pivot pin, can rotate along pivot pin, safety screen is fixed on the safety screen bearing pin, can rotate along the safety screen bearing pin, and have torsion spring that its safety screen is resetted, handle is connected by wire rope with safety screen, one of wire rope is contained on the safety screen with the retaining cap, and the other end is fixed on the handle with safetied pin, pulling and decontrol handle, the drive safety screen rotates, and can open and close the suspension hook mouth.