CN206111108U - Anti -drop oil pipe elevator backing pin device - Google Patents

Abstract

The utility model provides a rings, catch spring are upper end confined shaped as frame not that anti -drop oil pipe elevator backing pin device, bolt and oil pipe elevator be supporting to be inserted to block in the jack of oil pipe elevator both sides and hangs the oil pipe elevator the opening form by the difference in height at catch spring both ends, the one end of catch spring injects one side of bolt, the other end of catch spring injects the opposite side of bolt, the both ends of catch spring are not on same height, can produce the moment of torsion when making the catch spring rotate on the bolt, the width of catch spring both sides is greater than the width in the oil pipe elevator jack outside, wind advance the rings groove of oil pipe elevator in the outside that makes the catch spring can follow the oil pipe elevator, it hangs in the rings groove of oil pipe elevator the time to play down the oil pipe rings, the bolt blocks rings and does not deviate from in the follow rings groove, the lower level of catch spring is blocked by the top in rings groove, it is blocked all the time to make the bolt not pop out rings from the jack of oil pipe elevator in, rings are not deviate from in can not following the rings groove of oil pipe elevator, can not take place oil pipe falls and injures the accident of operating the workman by a crashing object from the high altitude.

Description

A kind of slip-off preventing pipe elevator backing pin device

Technical field

The utility model belongs to oil field oil, water well operation instrument, is the corollary apparatus on the elevator of lower oil tube, particularly one Plant slip-off preventing pipe elevator backing pin device.

Background technology

During oil-water well operation, by thousands of rice bran oil pipes from ground G.I.H, or from well by it go out, it is and oily Pipe is usually to be formed by connecting by 9 meters of single oil pipes how long, therefore, thousands of rice bran oil pipes are coupled together by hundreds of oil pipes, Hundreds of oil pipes are entered down one by one during operation or rise, need to be stuck on the box cupling on every oil pipe top with pipe elevator, So as to be sling, the work of lower oil tube is realized.After pipe elevator is stuck on the box cupling on oil pipe top, by under two suspension ring In two that hang over pipe elevator symmetrical symmetrical suspension ring grooves of portion, then on pipe elevator latch is inserted again, make suspension ring groove Close, it is ensured that suspension ring can not be deviate from from suspension ring groove during lower oil tube, Accident prevention occurs.But because Jing often has during lower oil tube Vibration, latch is easy to springing, loses the barrier effect to suspension ring, and suspension ring are deviate from from suspension ring groove, falls the oil pipe being lifted Fall, personal injury accident occurs.

The content of the invention

The purpose of this utility model is to provide a kind of slip-off preventing pipe elevator backing pin device, overcomes asking for existing elevator presence Topic, makes latch not eject from the jack of pipe elevator, prevents oil pipe from injuring operator by a crashing object from falling from high altitude, prevents suspension ring from squeezing wound Operator.

What the purpose of this utility model was realized in：Including latch, catch spring, latch is supporting with pipe elevator can insertion oil The suspension ring for hanging pipe elevator, the frame shape that catch spring is not closed in upper end are blocked in the jack of pipe elevator both sides, described opening is Formed by the difference in height at catch spring two ends, the side of latch is injected in one end of catch spring, the other end of catch spring injects the another of latch Side, the two ends of catch spring enable catch spring that moment of torsion is produced when rotating on latch not on sustained height, and the width of catch spring both sides is more than Width on the outside of pipe elevator jack, allows catch spring to move into from the outside of pipe elevator in the suspension ring groove of pipe elevator.

The beneficial effects of the utility model are：Not on the same axis, there is difference in height at the two ends of catch spring, make catch spring in latch Moment of torsion can be produced during upper rotation, when lower oil tube suspension ring are hung in the suspension ring groove of pipe elevator, the hypomere insertion oil pipe of latch hangs After the jack of card, outside of the catch spring in pipe elevator rotates catch spring, and catch spring energy storage, latch falls, and under elastic force effect gear is made Spring is moved in the suspension ring groove of pipe elevator from the outside of pipe elevator, and latch blocks suspension ring, suspension ring is not deviate from from suspension ring groove, The following of catch spring is blocked above suspension ring groove, latch is not ejected from the jack of pipe elevator, and suspension ring are blocked all the time, hang Ring will not be deviate from from the suspension ring groove of pipe elevator, and the accident that oil pipe injures operator by a crashing object from falling from high altitude will not occur.

Description of the drawings

Fig. 1 is state diagram when the utility model is arranged on pipe elevator.1 is suspension ring in figure, and 2 is suspension ring groove, and 3 is oil Pipe elevator, 4 is latch, and 5 is catch spring.

Fig. 2 is structure chart of the present utility model.

Fig. 3 is the top view after cutting open from A-A in Fig. 2.

Specific embodiment

Embodiment of the present utility model is illustrated below in conjunction with the accompanying drawings.

As seen from the figure, embodiment of the present utility model includes latch 4, catch spring 5, and latch 4 is supporting with pipe elevator can insertion The suspension ring for hanging pipe elevator, the frame shape that catch spring 5 is not closed in upper end, described opening are blocked in the jack of pipe elevator both sides It is to be formed by the difference in height at the two ends of catch spring 5, the side of latch 4 is injected in one end of catch spring 5, the other end of catch spring 5 injects latch 4 Opposite side, the two ends of catch spring 5 enable catch spring 5 that moment of torsion, the both sides of catch spring 5 are produced when rotating on latch 4 not on sustained height Width more than the width on the outside of pipe elevator jack, allow catch spring 5 that hanging for pipe elevator is moved into from the outside of pipe elevator In annular groove.

During lifting oil pipe, pipe elevator is stuck in tubing coupling, suspension ring is linked into from elevator groove, the hypomere of latch 4 After the jack of insertion pipe elevator, outside of the catch spring 5 in pipe elevator rotates catch spring 5, and latch 4 falls to making catch spring 5 from oil pipe In the suspension ring groove of pipe elevator is moved on the outside of elevator, latch 4 blocks suspension ring and does not deviate from from suspension ring groove, the quilt below of catch spring 5 Block above suspension ring groove, latch 4 is not ejected from the jack of pipe elevator, suspension ring are blocked all the time, and suspension ring will not be from oil Deviate from the suspension ring groove of pipe elevator, the accident that oil pipe injures operator by a crashing object from falling from high altitude will not occur.

Claims (1)

1. a kind of slip-off preventing pipe elevator backing pin device, including latch（4）, catch spring（5）, latch（4）With the supporting energy of pipe elevator The suspension ring for hanging pipe elevator are blocked in the jack of insertion pipe elevator both sides, be it is characterized in that：Catch spring（5）Frame in upper end open Shape, described opening is by catch spring（5）What the difference in height at two ends was formed, catch spring（5）One end inject latch（4）Side, gear Spring（5）The other end inject latch（4）Opposite side, catch spring（5）Two ends not on sustained height, make catch spring（5）In latch （4）Moment of torsion, catch spring can be produced during upper rotation（5）The width of both sides makes catch spring more than the width on the outside of pipe elevator jack（5）Can With in the suspension ring groove that pipe elevator is moved into from the outside of pipe elevator.