CN2363046Y

CN2363046Y - Oil pumping rod releaser

Info

Publication number: CN2363046Y
Application number: CN 99223221
Authority: CN
Inventors: 王佐
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-03-26
Filing date: 1999-03-26
Publication date: 2000-02-09
Anticipated expiration: 2009-03-26

Abstract

The utility model discloses a sucker rod connector which comprises a multi-claw spring clamp, a butt joint rod, a locking sleeve, a thrust spring and a nut. The utility model is characterized in that the outer end of the multi-pawl spring clamp is provided with a circular bead outer circle, so the multi-pawl spring clamp is in a step cylindrical shape. At least two notches which form spanner bayonets are symmetrically arranged on the circular bead outer circle. Compared with the prior art, the utility model has the advantages of convenient installation and use, etc.

Description

A kind of sucker rod on-off connector

The utility model relates to oil recovery machiner, exactly is a kind ofly to be used for realizing docking between deep-well oil pump piston rod and the sucker rod, throws off the mechanical device of function.

At present, a kind of more advanced bar on-off connector of taking out that people use is that the patent No. is 97246398.4 utility model patent product, and this product is made up of extension bar, lock sleeve, thrust spring and nut multijaw bullet card.Wherein, the cylindrical of multijaw bullet card is isometrical cylindrical.The subject matter that this sucker rod on-off connector in use exists is: when it links by multijaw bullet card outer end internal thread and sucker rod end external screw thread, this connection is installed employed instrument and is only limited to pipe tongs, the unicity of erecting tools brings inconvenience to fitting operation unavoidably.

The purpose of this utility model is for people provide a kind of the use more convenient sucker rod on-off connector to be installed.

The purpose of this utility model is to realize like this, it comprises multijaw bullet card, to extension bar, lock sleeve, thrust spring and nut, be characterized in, one section shoulder cylindrical is made in the outer end of multijaw bullet card, make the profile of this multijaw bullet card be the ladder bar shape, symmetry is made at least two notches on described shoulder cylindrical, and this notch constitutes the wrench bayonet socket.

After the utility model is realized, owing on its multijaw bullet card outer end shoulder cylindrical the spanner bayonet socket is set, so when it links by multijaw bullet card outer end internal thread and sucker rod end external screw thread, it connects erecting tools promptly can be pipe tongs, also can be craft commonly used such as adjustable wrench, single-end spanner its, thereby to bringing convenience property of installation work.In addition, the baseplane of spanner bayonet socket also is people's printed product numbering, and product labellings such as the date of production provide convenience.

Below in conjunction with accompanying drawing embodiment of the present utility model is done explanation in further detail.

Fig. 1 is a structural representation of the present utility model.

As seen from the figure, the utility model is by multijaw bullet card 1, form extension bar 2, lock sleeve 3, thrust spring 4, nut 5.Multijaw bullet card is to be shaped on a radially tubular body member of dividing plate in the endoporus, its outer end promptly illustrates and is shaped on the internal thread that matches with sucker rod end external screw thread in the left end endoporus, its the inner promptly illustrates and is shaped on a plurality of axially opens on the tube wall of right part, make this end tube wall form elastic claw, in this end endoporus, be shaped on an annular groove; To extension bar 2 are axis body parts that shoulder is made at a middle part, this axis body the inner promptly illustrates on the shaft part cylindrical of left side and makes an outer convex ring body, interior annular groove shape, the size of shape, size and multijaw bullet hole clipping of being somebody's turn to do outer convex ring body is complementary, both movingly, this side shaft section cylindrical and multijaw bullet card endoporus are complementary, and both movingly.The extension bar outer end is promptly illustrated right-hand member be shaped on external screw thread, this screw thread and oil well pump piston rod end internal thread are complementary; Lock sleeve 3 is barrel members, be shaped on a through hole at the bottom of its barrel, this through hole with the shoulder right side shaft part cylindrical of extension bar is matched, both matched in clearance, its intracavity diameter and multijaw bullet card cylindrical match, both matched in clearance, its bung outward flanging is shaped on several radial direction through hole on its barrel wall.

The symmetry notch quantity of making is not unique on the shoulder cylindrical of above-mentioned multijaw bullet card, and the quantity of this notch also can be 4,6 etc.

After above-mentioned each part is got all the ready, get final product by the figure assembling.

In the utility model, except that the partial structurtes of multijaw bullet card and prior art were different, the form of structure of all the other each parts and use installation of the present utility model and method of operating were same as the prior art, so be not repeated.

Claims

1. sucker rod on-off connector, comprise multijaw bullet card, to extension bar, lock sleeve, thrust spring and nut, one section shoulder cylindrical is made in the outer end that it is characterized in that multijaw bullet card, make the profile of this multijaw bullet card be the ladder bar shape, symmetry is made at least two notches on described shoulder cylindrical, and this notch constitutes the wrench bayonet socket.