CN218972066U

CN218972066U - Coupling special for lining oil pipe

Info

Publication number: CN218972066U
Application number: CN202223283863.3U
Authority: CN
Inventors: 董宝利; 王非飞
Original assignee: Shaanxi Shengda Drilling Technology Co ltd
Current assignee: Shaanxi Shengda Drilling Technology Co ltd
Priority date: 2022-12-08
Filing date: 2022-12-08
Publication date: 2023-05-05
Anticipated expiration: 2032-12-08

Abstract

The utility model discloses a special coupling for lining oil pipes, which comprises an oil pipe coupling body, wherein threads are fixedly arranged at the port of the inner wall of the oil pipe coupling body, the oil pipe coupling body is in threaded connection with an oil pipe, connecting rods are fixedly connected to the top end and the bottom end of the oil pipe coupling body, the connecting rods are fixedly connected with supporting plates, rotating rods are rotatably connected to two sides on the supporting plates, the rotating rods penetrate through the supporting plates and are in threaded connection with compression collars, anti-skid pads are fixedly connected to the bottom ends of the compression collars, and guide rods are fixedly connected to the bottom ends of two sides of the supporting plates, and the special coupling has the beneficial effects that: the oil pipe is compressed through the compression sleeve ring to play a fixing role, in addition, the anti-skid sleeve can prevent the oil pipe from sliding under the fixation of the compression sleeve ring, and the compression sleeve ring and the anti-skid sleeve are matched with each other, so that the pressure of the threaded connection part of the oil pipe and the oil pipe coupling is effectively relieved, the possibility of sliding of the connection part of the oil pipe coupling and the oil pipe is reduced, and oil leakage is avoided.

Description

Coupling special for lining oil pipe

Technical Field

The utility model relates to the technical field of oil pipes, in particular to a coupling special for lining an oil pipe.

Background

The oil pipe coupling is one kind of oil field drilling tool and is used mainly in oil pipe connection, and the oil pipe end is connected with the inner wall of the coupling body in conic screw mode and the end of the coupling body is connected with the oil pipe in flat screw mode.

The existing tubing coupling is arranged at the port of the inner wall and is in threaded connection with the head end of the tubing, however, as the tubing and the tubing coupling are in a high-pressure working environment for a long time, looseness can occur at the threaded connection, and oil leakage and sliding teeth can be caused once looseness occurs.

Disclosure of Invention

The utility model aims to provide a special coupling for lining an oil pipe, which solves the problems in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a special coupling of inside lining oil pipe, includes the oil pipe coupling body, oil pipe coupling body inner wall port department is fixed to be equipped with A screw thread, oil pipe coupling body threaded connection oil pipe, oil pipe coupling body top and the equal fixedly connected with connecting rod of bottom, connecting rod fixedly connected with backup pad, the both sides in the backup pad all rotate and are connected with the dwang, the dwang passes backup pad threaded connection and compresses tightly the lantern ring, it has the slipmat to compress tightly lantern ring bottom fixedly connected with, backup pad both sides bottom fixedly connected with guide bar.

Preferably, the surface of the bottom of the rotating rod is fixedly provided with B threads.

Preferably, the compressing sleeve ring is internally fixedly provided with a C thread.

Preferably, the bottom end of the guide rod passes through the compaction lantern ring.

Preferably, the compaction collar is semicircular.

Compared with the prior art, the utility model has the beneficial effects that: the oil pipe is compressed through the compression sleeve ring to play a fixing role, in addition, the anti-skid sleeve can prevent the oil pipe from sliding under the fixation of the compression sleeve ring, and the compression sleeve ring and the anti-skid sleeve are matched with each other, so that the pressure of the threaded connection part of the oil pipe and the oil pipe coupling is effectively relieved, the possibility of sliding of the connection part of the oil pipe coupling and the oil pipe is reduced, and oil leakage is avoided.

Drawings

FIG. 1 is a schematic diagram of a front cross-sectional structure of a coupling specially used for lining an oil pipe;

FIG. 2 is a schematic diagram of a connection structure between a tubing coupling body and a tubing, which is lined with a tubing-specific coupling according to the present utility model;

FIG. 3 is a schematic side view of a coupling for lining an oil pipe according to the present utility model;

fig. 4 is an enlarged schematic view of the structure of the portion a in fig. 2 of the coupling specially used for lining the oil pipe according to the present utility model.

In the figure: 1. a tubing coupling body; 2. a thread; 3. an oil pipe; 4. a connecting rod; 5. a support plate; 6. a rotating lever; 7. compressing the lantern ring; 8. an anti-slip pad; 9. a guide rod; 10. b thread; 11. c thread.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, the present utility model provides a technical solution: the utility model provides a special coupling of inside lining oil pipe, including oil pipe coupling body 1, oil pipe coupling body 1 inner wall port department is fixed to be equipped with A screw thread 2, oil pipe coupling body 1 threaded connection oil pipe 3, oil pipe coupling body 1 top and the equal fixedly connected with connecting rod 4 of bottom, connecting rod 4 fixedly connected with backup pad 5, the both sides on the backup pad 5 all rotate and are connected with dwang 6, dwang 6 passes backup pad 5 threaded connection and compresses tightly lantern ring 7, compress tightly lantern ring 7 bottom fixedly connected with slipmat 8, backup pad 5 both sides bottom fixedly connected with guide bar 9.

The fixed screw thread that is equipped with in dwang 6 bottom surface mounting compresses tightly lantern ring 7 internal fixation and is equipped with the screw thread, and dwang 6 passes through B screw thread 10 and C screw thread 11 threaded connection with compressing tightly lantern ring 7, and guide bar 9 bottom passes compresses tightly lantern ring 7, and guide bar 9 compresses tightly lantern ring 7 and confirms the direction of movement for compressing tightly lantern ring 7, compresses tightly lantern ring 7 and is semi-circular, conveniently fixes oil pipe 3.

Specifically, when the utility model is used, firstly, the oil pipe coupling body 1 and the oil pipe 3 are connected well through the thread A2, then, the pressing collar 7 is moved downwards through the guide rod 9 by rotating the rotating rod 6 until the anti-skid pad 8 on the pressing collar 7 contacts the surface of the oil pipe 3, and then, the rotating rod 6 is screwed down by a large force to enable the pressing collar 7 to tightly press the oil pipe 3.

In the description of the present utility model, it should be understood that the terms "coaxial," "bottom," "one end," "top," "middle," "another end," "upper," "one side," "top," "inner," "front," "center," "two ends," etc. indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," "third," "fourth," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, whereby features defining "first," "second," "third," "fourth" may explicitly or implicitly include at least one such feature.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "configured," "connected," "secured," "screwed," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intermediaries, or in communication with each other or in interaction with each other, unless explicitly defined otherwise, the meaning of the terms described above in this application will be understood by those of ordinary skill in the art in view of the specific circumstances.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a special coupling of inside lining oil pipe, its characterized in that, including oil pipe coupling body (1), oil pipe coupling body (1) inner wall port department is fixed to be equipped with A screw thread (2), oil pipe coupling body (1) threaded connection oil pipe (3), oil pipe coupling body (1) top and the equal fixedly connected with connecting rod (4) of bottom, connecting rod (4) fixedly connected with backup pad (5), all rotate in both sides on backup pad (5) and be connected with dwang (6), dwang (6) pass backup pad (5) threaded connection and compress tightly lantern ring (7), compress tightly lantern ring (7) bottom fixedly connected with slipmat (8), backup pad (5) both sides bottom fixedly connected with guide bar (9).

2. The lined tubing specific coupling of claim 1, wherein: the surface of the bottom of the rotating rod (6) is fixedly provided with a B thread (10).

3. The lined tubing specific coupling of claim 1, wherein: the compressing lantern ring (7) is internally and fixedly provided with a C thread (11).

4. The lined tubing specific coupling of claim 1, wherein: the bottom end of the guide rod (9) passes through the compaction lantern ring (7).

5. The lined tubing specific coupling of claim 1, wherein: the compaction lantern ring (7) is semicircular.