A tubing variable buckling sub that is easy to install

Abstract

The utility model belongs to petroleum equipment technical field especially relates to an oil pipe variable buckle joint convenient to installation, including first oil pipe and second oil pipe, the first oil pipe end portion is equipped with the threaded joint, second oil pipe end portion is equipped with the threaded sleeve head, threaded joint is equipped with the lantern ring away from second oil pipe one end, the lantern ring outside is equipped with annular rotation groove. Through the rotatable ring that installs outside first oil pipe, and install a plurality of guide posts on the ring, let the guide groove on the second oil pipe align a plurality of guide posts, let the guide post align the plug-in of a plurality of jack hole in the guide groove, let a plurality of guide posts guide the moving path of threaded sleeve head, let threaded sleeve head can accurately align the second oil pipe on first oil pipe, thereby effectively prevent the deviation of joint alignment, avoid the problem of threaded damage and reduce the sealing performance of joint, effectively reduce the difficulty when the first oil pipe and second oil pipe butt joint, the threaded joint and threaded sleeve head quick butt joint installation are convenient.

Description

Technical Field

[0001] This utility model relates to the field of petroleum equipment technology, and in particular to an easy-to-install oil pipe coupling. Background Technology

[0002] In the fields of oil drilling, development, and production, tubing or casing with external threads is typically connected using couplings with internal threads to form tubing strings that are hundreds or even thousands of meters long. However, actual production processes place increasingly complex demands on tubing structures, requiring the installation of tubing of different diameters at different work locations, thus necessitating the connection of different types of tubing.

[0003] However, in actual assembly, existing tubing adapters often suffer from problems due to limited downhole working space and harsh operating environments. Workers typically need to align the adapters visually or with simple tools. Even a tiny positional deviation can prevent the threads from being screwed in properly or result in tilted screwing. Tilted screwing not only damages the threads and reduces the sealing performance of the adapter, but can also cause oil and gas leaks in high-pressure, highly corrosive downhole environments, and even lead to serious safety accidents such as tubing string breakage. Therefore, we propose an easy-to-install tubing adapter to solve these problems. Utility Model Content

[0004] The purpose of this invention is to provide an easy-to-install oil pipe coupling to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an easy-to-install oil pipe threaded connector, comprising a first oil pipe and a second oil pipe, wherein a threaded connector is installed at the end of the first oil pipe, and a threaded sleeve is installed at the end of the second oil pipe, wherein a collar is installed at the end of the threaded connector away from the second oil pipe, wherein an annular groove is formed on the outside of the collar, and a rotating ring is provided on the outside of the collar, wherein the rotating ring is rotatably connected to the annular groove on the collar by a retaining ring, wherein multiple sets of guide rods are installed at equal intervals at the end of the rotating ring facing the second oil pipe, wherein multiple sets of insertion holes are formed at equal intervals on the threaded sleeve, wherein a guide groove communicating with the multiple sets of insertion holes is formed at the end of the threaded sleeve facing the first oil pipe, and a locking device is provided on the outside of the collar.

[0006] As an improved technical solution, the locking device includes three sets of rotating seats with the outer side of the collar installed at equal intervals. Each rotating seat has a rotating cylinder rotatably connected inside it. Each rotating cylinder has a locking rod installed outside it. The end of the locking rod away from the rotating cylinder has an external thread. The external thread is connected to a threaded ring. Multiple sets of locking grooves are opened at equal intervals on the outer side of the rotating ring.

[0007] As an improved technical solution, the end of the guide rod facing the second oil pipe is hemispherical, and the inlet of the insertion hole is chamfered.

[0008] As an improved technical solution, both sides of the guide groove are designed to be inclined.

[0009] As an improved technical solution, the outer wall of the guide rod is fully fitted with the inner wall of the socket.

[0010] As an improved technical solution, an extension plate is installed at the end of the clamp rod away from the rotating cylinder, and the diameter of the extension plate is larger than the inner diameter of the threaded ring.

[0011] As an improved technical solution, multiple sets of anti-slip grooves are equally spaced on the outside of the threaded ring.

[0012] After adopting the above technical solution, the beneficial effects of this utility model are: I. This utility model features a rotatable rotating ring installed outside the first oil pipe, with multiple sets of guide rods mounted on the rotating ring. This allows the guide grooves on the second oil pipe to align with the guide rods, and the guide rods to align with multiple insertion holes within the guide grooves for insertion. The guide rods guide the movement path of the threaded sleeve, ensuring accurate alignment of the threaded sleeve with the second oil pipe on the first oil pipe. This effectively prevents misalignment during joint alignment, avoids thread damage and reduced sealing performance, and significantly reduces the difficulty of connecting the first and second oil pipes, facilitating quick and easy installation of threaded joints and threaded sleeves.

[0013] II. This utility model has three sets of rotatable locking rods installed on the outside of the collar. The locking rods can be pushed to allow the rotating drum to drive the locking rods to rotate along the inside of the rotating seat and enter the corresponding locking grooves on the rotating ring. Then, the threaded ring at the end of the locking rod is rotated to lock the position of the locking rod. This allows the three sets of locking rods to limit the rotation of the rotating ring, and also allows the multiple sets of guide rods on the rotating ring to limit the rotation of the threaded sleeve. This prevents the threaded sleeve from loosening accidentally and improves the stability of the connection between the first oil pipe and the second oil pipe. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a side view of the structure of this utility model; Figure 3 This is a schematic diagram of the first disassembled state of this utility model; Figure 4 This is a schematic diagram of the second disassembled state structure of this utility model; Figure 5 For the present utility model Figure 2 A magnified structural diagram at point A.

[0015] In the diagram: 1. First oil pipe; 2. Second oil pipe; 3. Threaded joint; 4. Threaded sleeve; 5. Collar; 6. Annular groove; 7. Rotary ring; 8. Snap ring; 9. Guide rod; 10. Insertion hole; 11. Guide groove; 12. Rotary seat; 13. Rotary cylinder; 14. Snap rod; 15. External thread; 16. Threaded ring; 17. Snap groove. Detailed Implementation

[0016] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0017] This utility model provides a technical solution: such as Figures 1 to 5 As shown in this embodiment, an easy-to-install oil pipe adapter includes a first oil pipe 1 and a second oil pipe 2. A threaded connector 3 is installed at the end of the first oil pipe 1, and a threaded sleeve 4 is installed at the end of the second oil pipe 2. A collar 5 is installed at the end of the threaded connector 3 away from the second oil pipe 2. An annular groove 6 is provided on the outside of the collar 5. A rotating ring 7 is provided on the outside of the collar 5. The rotating ring 7 is rotatably connected to the annular groove 6 on the collar 5 through a retaining ring 8. Multiple sets of guide rods 9 are installed at equal intervals at the end of the rotating ring 7 facing the second oil pipe 2. Multiple sets of insertion holes 10 are provided at equal intervals on the threaded sleeve 4. A guide groove 11 communicating with the multiple sets of insertion holes 10 is provided at the end of the threaded sleeve 4 facing the first oil pipe 1. A locking device is provided on the outside of the collar 5.

[0018] When the second oil pipe 2 needs to be installed, align the guide groove 11 on the second oil pipe 2 with the multiple sets of guide rods 9, and then rotate the threaded sleeve 4 to align the guide rods 9 with the multiple sets of insertion holes 10 in the guide groove 11. The multiple sets of guide rods 9 guide the movement path of the threaded sleeve 4, so that the threaded sleeve 4 can accurately align with the second oil pipe 2 on the first oil pipe 1. This effectively prevents deviations during joint alignment, avoids thread damage and reduced sealing performance of the joint, effectively reduces the difficulty of connecting the first oil pipe 1 and the second oil pipe 2, and facilitates the quick connection and installation of the threaded joint 3 and the threaded sleeve 4.

[0019] In other embodiments, the locking device includes three sets of rotating seats 12 that are equally spaced on the outside of the collar 5. Each rotating seat 12 is rotatably connected to a rotating cylinder 13. Each rotating cylinder 13 is equipped with a locking rod 14. The end of the locking rod 14 away from the rotating cylinder 13 is provided with an external thread 15. The external thread 15 is threaded to a threaded ring 16. Multiple sets of locking grooves 17 are equally spaced on the outside of the rotating ring 7. By installing three sets of rotatable locking rods 14 on the outside of the collar 5, after the first oil pipe 1 and the second oil pipe 2 are connected, the locking rods 14 can be pushed so that the rotating drum 13 drives the locking rods 14 to rotate along the rotating seat 12 and enter the corresponding slot 17 on the rotating ring 7. Then, the threaded ring 16 at the end of the locking rod 14 is rotated so that the threaded ring 16 locks the position of the locking rod 14. Thus, the three sets of locking rods 14 form a rotation limit on the rotating ring 7, and the multiple sets of guide rods 9 on the rotating ring 7 also form a rotation limit on the threaded sleeve 4, thereby preventing the threaded sleeve 4 from loosening accidentally and improving the stability of the connection between the first oil pipe 1 and the second oil pipe 2.

[0020] In other embodiments, the end of the guide rod 9 facing the second oil pipe 2 is hemispherical, and the inlet of the insertion hole 10 is chamfered; With this design, when multiple sets of guide rods 9 move to the end of the socket 10, it is easy for multiple sets of guide rods 9 to be smoothly inserted into multiple sets of sockets 10, thereby reducing the difficulty of guide rods 9 entering the socket 10.

[0021] In other embodiments, both sides of the guide groove 11 are designed to be inclined; This design facilitates guiding multiple sets of guide rods 9 along the guide groove 11 into the socket 10, further reducing the difficulty of the guide rods 9 entering the socket 10.

[0022] In other embodiments, the outer wall of the guide rod 9 is fully fitted with the inner wall of the socket 10; With this design, when multiple sets of guide rods 9 are inserted into multiple sets of insertion holes 10 on the threaded sleeve 4, it is ensured that the threaded sleeve 4 can be smoothly aligned with the threaded joint 3 on the first oil pipe 1 along the surface of the guide rods 9.

[0023] In other embodiments, an extension plate is mounted on the end of the lever 14 away from the rotating drum 13, the diameter of the extension plate being larger than the inner diameter of the threaded ring 16; This design effectively prevents the threaded ring 16 from detaching from the outside of the locking rod 14, thus preventing the threaded ring 16 from falling off and being lost.

[0024] In other embodiments, multiple sets of anti-slip grooves are equally spaced on the outside of the threaded ring 16; This design effectively increases the friction between the threaded ring 16 and the user's hand, thus facilitating the effective rotation of the threaded ring 16.

[0025] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An easy-to-install oil pipe threaded adapter, comprising a first oil pipe (1) and a second oil pipe (2), wherein a threaded connector (3) is installed at the end of the first oil pipe (1) and a threaded sleeve (4) is installed at the end of the second oil pipe (2), characterized in that: The threaded connector (3) is equipped with a collar (5) at the end away from the second oil pipe (2). The collar (5) has an annular groove (6) on its outside. The collar (5) is also equipped with a rotating ring (7) on its outside. The rotating ring (7) is rotatably connected to the annular groove (6) on the collar (5) by a retaining ring (8). The rotating ring (7) is equipped with multiple sets of guide rods (9) at equal intervals at the end facing the second oil pipe (2). The threaded sleeve (4) has multiple sets of insertion holes (10) at equal intervals. The threaded sleeve (4) has a guide groove (11) at the end facing the first oil pipe (1) that communicates with the multiple sets of insertion holes (10). The collar (5) is equipped with a locking device on its outside.

2. The easy-to-install oil pipe adapter according to claim 1, characterized in that: The locking device includes three sets of rotating seats (12) with equidistant rings (5) installed on the outside. Each rotating seat (12) is rotatably connected to a rotating cylinder (13). Each rotating cylinder (13) is equipped with a locking rod (14). The end of the locking rod (14) away from the rotating cylinder (13) is provided with an external thread (15). The external thread (15) is connected to a threaded ring (16). The rotating ring (7) is provided with multiple sets of locking grooves (17) at equal intervals on the outside.

3. The easy-to-install oil pipe adapter according to claim 1, characterized in that: The end of the guide rod (9) facing the second oil pipe (2) is hemispherical, and the inlet of the socket (10) is chamfered.

4. The easy-to-install oil pipe adapter according to claim 1, characterized in that: Both sides of the guide groove (11) are designed to be inclined.

5. The easy-to-install oil pipe adapter according to claim 1, characterized in that: The outer wall of the guide rod (9) is fully fitted with the inner wall of the socket (10).

6. The easy-to-install oil pipe adapter according to claim 2, characterized in that: An extension plate is installed at the end of the lever (14) away from the rotating cylinder (13), and the diameter of the extension plate is greater than the inner diameter of the threaded ring (16).

7. The easy-to-install oil pipe adapter according to claim 2, characterized in that: The threaded ring (16) has multiple sets of anti-slip grooves at equal intervals on its outer surface.

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