CN114526019A

CN114526019A - Tubing coupling convenient for loosening threads

Info

Publication number: CN114526019A
Application number: CN202210133208.5A
Authority: CN
Inventors: 国际; 张笑天; 王伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-02-09
Filing date: 2022-02-09
Publication date: 2022-05-24

Abstract

The invention discloses an oil pipe coupling convenient for thread loosening, which relates to the technical field of oil pipe couplings, in particular to an oil pipe coupling convenient for thread loosening. This tubing coupling convenient to pine screw thread, through promoting the drive block, the drive block can extrude spacing spring this moment, make spacing spring take place compression deformation, thereby realize moving right, utilize the drive block can drive the piston and remove, utilize the piston can extrude the lubricating oil in the flourishing oil groove of seting up inside the drive base member, thereby derive the lubricating oil of drive base member inner chamber, make lubricating oil get into coupling and oil pipe's junction, can effectually avoid coupling and the easy rusty problem of oil pipe, and then can be convenient for become flexible screw thread between coupling and the oil pipe.

Description

Tubing coupling convenient for loosening threads

Technical Field

The invention relates to the technical field of tubing couplings, in particular to a tubing coupling convenient for thread loosening.

Background

A large number of oilfield pipelines can be paved underground in an oilfield, the length of a single oilfield pipeline is limited, the oilfield well is deep, the oilfield pipelines need to be connected in a sealing mode through tubing couplings to be paved for use, the tubing couplings are one of oilfield drilling tools and are mainly used for connection of oil pipes, the problem that existing couplings are prone to fatigue and breakage due to stress concentration is mainly solved, the existing tubing couplings are designed to be simple and only are sections of common threaded pipes, the sealing performance of oilfield pipeline connection positions cannot be guaranteed after the oilfield pipelines are connected, leakage accidents occur easily, rusting can easily occur between the couplings and the oil pipes due to the fact that a threaded connection mode is adopted, and therefore disassembly and maintenance are difficult to achieve is achieved.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a tubing coupling convenient for loosening threads, and solves the problems in the background technology.

In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a tubing coupling convenient to pine screw thread, includes the coupling, the internal chamber of coupling has seted up the external screw thread, threaded connection has oil pipe in the external screw thread of seting up in the coupling inner chamber, the front side of coupling surface is provided with first clamp, the second clamp is installed to the rear side of coupling surface, the spread groove has been seted up with the both ends of second clamp to first clamp, install the lock screw rod in the spread groove, the equal threaded connection in back both sides of lock screw rod surface has the lock nut, the positive fixed mounting of lock nut has the connecting rod, the other end fixed mounting of connecting rod has the installation base.

Optionally, a mounting plate is fixedly mounted on the inner side of the mounting base, a sliding groove is formed in the inner side of the mounting plate, a first limiting block is movably mounted in the sliding groove formed in the inner side of the mounting plate, and a driving base body is fixedly mounted at the other end of the first limiting block.

Optionally, a driving groove is formed in the inner side of the mounting base, a jacking block is movably mounted in the driving groove formed in the inner side of the mounting base and located on the front side of the driving base body, a threaded groove is formed in the left side of the mounting base, a driving threaded rod is connected to the threaded groove formed in the left side of the mounting base in a threaded manner, and the driving threaded rod is in movable contact with the jacking block.

Optionally, the equal fixed mounting in both ends has first fixed block about the installation base is inboard, the surface movable mounting of first fixed block has the centre gripping arm, the mounting groove has all been seted up at both ends around the centre gripping arm, movable mounting has the centre gripping wheel in the mounting groove that both ends were seted up around the centre gripping arm.

Optionally, the last fixed surface of drive base member installs the second fixed block, the positive fixed mounting of second fixed block has the support column, the other end fixed mounting of support column has the second stopper, the surface of support column is provided with spacing spring, the front side movable mounting of support column surface has the drive block, flourishing oil groove has been seted up to the inside of drive base member, movable mounting has the piston in the flourishing oil groove that the drive base member is inside to be seted up, piston fixed connection is in the bottom of drive block.

Optionally, a driving groove matched with the driving block is formed in the upper surface of the driving base body, and a sealing plug is installed in the driving groove formed in the upper surface of the driving base body.

Optionally, the jacking block is a T-shaped protrusion, and the driving groove formed in the inner side of the mounting base is T-shaped and matched with the jacking block.

Optionally, a mounting groove is formed in a driving groove formed in the inner side of the mounting base, a ball is mounted in the mounting groove, and the jacking block is in movable contact with the ball.

The invention provides an oil pipe coupling convenient for loosening threads, which has the following beneficial effects:

1. this tubing coupling convenient to pine screw thread can drive the jacking piece through rotating the drive threaded rod for the jacking piece moves right, thereby makes the jacking piece carry out the jacking to the drive base member, utilizes the drive base member to drive the centre gripping arm, thereby makes the upper end of centre gripping wheel carry out the centre gripping to oil pipe, and stability coupling and oil pipe that can be further avoid traditional single threaded connection mode to cause coupling and the unstable problem of tubing connection easily.

2. This tubing coupling convenient to pine screw thread, through promoting the drive block, the drive block can extrude spacing spring this moment, make spacing spring take place compression deformation, thereby realize moving right, utilize the drive block can drive the piston and remove, utilize the piston can extrude the lubricating oil in the flourishing oil groove of seting up inside the drive base member, thereby derive the lubricating oil of drive base member inner chamber, make lubricating oil get into coupling and oil pipe's junction, can effectually avoid coupling and the easy rusty problem of oil pipe, and then can be convenient for become flexible screw thread between coupling and the oil pipe.

3. This tubing coupling convenient to pine screw thread through fixing first clamp and second clamp at the surface of coupling, utilizes the connecting rod to support the installation base, can dismantle the installation base from the surface of coupling, can the person of facilitating the use carry out the dismouting, and the person of facilitating the use overhauls, can reuse simultaneously, avoids the problem that can't use the installation base after the coupling damages, can effectual saving manufacturing cost, can realize the effective distribution of resource.

Drawings

FIG. 1 is a schematic side view of the present invention;

FIG. 2 is a schematic view of a three-dimensional explosion at the first band of the present invention;

FIG. 3 is a schematic three-dimensional structure of the present invention at the installation base;

FIG. 4 is a schematic three-dimensional structure of the jacking block of the present invention;

FIG. 5 is a schematic perspective view of the mounting plate of the present invention;

fig. 6 is a sectional structural view of the driving base according to the present invention.

In the figure: 1. a coupling; 2. an oil pipe; 3. a first clamp; 4. a second clamp; 5. tightly closing the screw rod; 6. tightening the nut; 7. a connecting rod; 8. installing a base; 9. a first fixed block; 10. a clamp arm; 11. a clamping wheel; 12. mounting a plate; 13. a first stopper; 14. a drive substrate; 15. jacking blocks; 16. a ball bearing; 17. driving the threaded rod; 18. a second fixed block; 19. a support pillar; 20. a second limiting block; 21. a limiting spring; 22. a drive block; 23. a piston; 24. and (4) sealing the plug.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1 and fig. 2, the present invention provides a technical solution: a tubing coupling convenient for loosening threads comprises a coupling 1, wherein an inner cavity of the coupling 1 is provided with external threads, the external threads arranged in the inner cavity of the coupling 1 are in threaded connection with a tubing 2, the front side of the outer surface of the coupling 1 is provided with a first collar 3, the rear side of the outer surface of the coupling 1 is provided with a second collar 4, an installation base 8 can be fixed on the outer side of the tubing 2 by utilizing the first collar 3 and the second collar 4, the installation base 8 can be conveniently detached and maintained by a user, two ends of the first collar 3 and the second collar 4 are provided with connecting grooves, tightening screws 5 are arranged in the connecting grooves, both rear sides of the outer surface of the tightening screws 5 are in threaded connection with tightening nuts 6, and friction force between the tightening nuts 6 and the first collar 3 and the second collar 4 can play a role of fixing the first collar 3 and the second collar 4 on the outer surface of the coupling 1, the front fixed mounting of lock nut 6 has connecting rod 7, utilizes connecting rod 7 can be in the same place first clamp 3 with installation base 8 fixed connection, and the other end fixed mounting of connecting rod 7 has installation base 8.

Please refer to fig. 5, an installation plate 12 is fixedly installed on the inner side of the installation base 8, a sliding groove is formed on the inner side of the installation plate 12, a first limiting block 13 is movably installed in the sliding groove formed on the inner side of the installation plate 12, in the process that the driving base 14 is lifted, the driving base 14 can be limited by the first limiting block 13 and the installation plate 12, the installation plate 12 can be more stable, the driving base 14 is prevented from shaking, the driving base 14 is fixedly installed on the other end of the first limiting block 13, the bottom of the driving base 14 is inclined downwards towards the right side, the driving base 14 can be lifted by the lifting block 15, the lifting purpose of the driving base 14 is realized, limiting grooves matched with the clamping wheels 11 are formed in the left side and the right side of the driving base 14, and the tightness between the clamping wheels 11 and the driving base 14 can be improved by the limiting grooves.

Referring to fig. 3 and 4, a driving groove is formed on the inner side of the mounting base 8, a jacking block 15 is movably mounted in the driving groove formed on the inner side of the mounting base 8, the jacking block 15 is in a T-shaped convex block shape, the driving groove formed on the inner side of the mounting base 8 is in a T-shaped shape matched with the jacking block 15, so that the contact area between the jacking block 15 and the mounting base 8 can be increased, thereby make jacking piece 15 more stable, avoid jacking piece 15 to appear rocking the problem in driving process, jacking piece 15 is in the front side of drive base member 14, the thread groove has been seted up in the left side of installation base 8, threaded connection has drive threaded rod 17 in the thread groove that installation base 8 left side was seted up, swing contact between drive threaded rod 17 and the jacking piece 15, utilize drive threaded rod 17 to drive jacking piece 15, the mode that utilizes threaded connection simultaneously can carry on spacingly to jacking piece 15.

Referring to fig. 4, a first fixing block 9 is fixedly mounted at each of left and right ends of an inner side of the mounting base 8, a clamping arm 10 is movably mounted on an outer surface of the first fixing block 9, the clamping arm 10 can be driven by driving the base 14 to ascend, so that the upper end of the clamping arm 10 moves inwards, the purpose of clamping the oil pipe 2 is achieved, mounting grooves are formed in the front end and the rear end of the clamping arm 10, and clamping wheels 11 are movably mounted in the mounting grooves formed in the front end and the rear end of the clamping arm 10.

Referring to fig. 6, a second fixed block 18 is fixedly installed on the upper surface of the driving base 14, a supporting column 19 is fixedly installed on the front surface of the second fixed block 18, the supporting column 19 can be used for supporting a limiting spring 21, so as to prevent the limiting spring 21 from being damaged due to bending when the limiting spring 21 is compressed and deformed, and reduce the service life of the limiting spring 21, a second limiting block 20 is fixedly installed on the other end of the supporting column 19, the second limiting block 20 can limit a driving block 22, the limiting spring 21 is installed on the outer surface of the supporting column 19, when the limiting spring 21 is compressed and deformed, the elastic force generated by the recovered elastic force can limit a piston 23, the driving block 22 is movably installed on the front side of the outer surface of the supporting column 19, an oil containing groove is formed in the driving base 14, and the piston 23 is movably installed in the oil containing groove formed in the driving base 14, the piston 23 is fixedly connected to the bottom of the driving block 22.

Referring to fig. 6, a driving groove adapted to the driving block 22 is formed in the upper surface of the driving base 14, and a sealing plug 24 is installed in the driving groove formed in the upper surface of the driving base 14, so that the driving groove can be sealed by the sealing plug 24, and the problem of leakage of the lubricating oil in the oil containing groove is solved.

Referring to fig. 4, a mounting groove is formed in a driving groove formed in the inner side of the mounting base 8, a ball 16 is mounted in the mounting groove, the jacking block 15 and the ball 16 are in movable contact, sliding friction between the jacking block 15 and the mounting base 8 can be changed into rolling friction by using the ball 16, friction between the jacking block 15 and the mounting base 8 is reduced, loss between the jacking block 15 and the mounting base 8 is reduced, and the service life is prolonged.

In conclusion, when the tubing coupling convenient for loosening threads is used, a user firstly needs to connect a tubing 2 in an inner cavity of the coupling 1 in a threaded manner, then places a first clamp 3 and a second clamp 4 above the outer surface of the coupling 1, then installs a fastening screw 5 in a connecting groove of the first clamp 3 and the second clamp 4, then connects fastening nuts 6 at two ends of the fastening screw 5 in a threaded manner, so that the fastening nuts 6 are tightly connected with the first clamp 3 and the second clamp 4, the coupling 1 and the tubing 2 can be fixed on the outer surface of the coupling 1 by using the friction force between the fastening nuts 6 and the first clamp 3 as well as the second clamp 4, at the moment, the installation base 8 is positioned at the front side of the tubing 2, then needs to rotate a driving threaded rod 17, the driving threaded rod 17 can drive a jacking block 15, so that the jacking block 15 moves rightwards, and the jacking block 15 can jack a driving base body 14, utilize drive base member 14 to drive centre gripping arm 10, thereby make the upper end of centre gripping wheel 11 move to the inboard, and then accomplish and carry out the centre gripping to oil pipe 2, need promote drive block 22 after the installation is accomplished, drive block 22 can extrude spacing spring 21 this moment, make spacing spring 21 take place compression deformation, thereby realize moving rightwards, utilize drive block 22 to drive piston 23 and remove, utilize piston 23 can extrude the lubricating oil in the flourishing oil groove of seting up inside the drive base member 14, thereby derive the lubricating oil of drive base member 14 inner chamber, make lubricating oil get into coupling 1 and oil pipe 2's junction, avoid coupling 1 and the easy rusty problem of oil pipe 2, so can.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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

Claims

1. A tubing coupling convenient for loosening threads comprises a coupling (1) and is characterized in that: the internal chamber of coupling (1) has seted up the external screw thread, threaded connection has oil pipe (2) in the external screw thread of seting up in coupling (1) inner chamber, the front side of coupling (1) surface is provided with first clamp (3), second clamp (4) are installed to the rear side of coupling (1) surface, the spread groove has been seted up with the both ends of second clamp (4) in first clamp (3), install in the spread groove and tightly close screw rod (5), the equal threaded connection in rear both sides of tightly closing screw rod (5) surface has lock nut (6), the positive fixed mounting of lock nut (6) has connecting rod (7), the other end fixed mounting of connecting rod (7) has installation base (8).

2. A tubing coupling for facilitating loosening of threads according to claim 1, wherein: the mounting structure is characterized in that a mounting plate (12) is fixedly mounted on the inner side of the mounting base (8), a sliding groove is formed in the inner side of the mounting plate (12), a first limiting block (13) is movably mounted in the sliding groove formed in the inner side of the mounting plate (12), and a driving base body (14) is fixedly mounted at the other end of the first limiting block (13).

3. A tubing coupling for facilitating loosening of threads according to claim 1, wherein: the drive groove has been seted up to the inboard of installation base (8), movable mounting has jacking piece (15) in the drive groove that installation base (8) inboard was seted up, jacking piece (15) are in the front side of drive base member (14), the thread groove has been seted up in the left side of installation base (8), threaded connection has drive threaded rod (17) in the thread groove that installation base (8) left side was seted up, swing contact between drive threaded rod (17) and jacking piece (15).

4. The tubing coupling facilitating unscrewing of claim 1 wherein: the utility model discloses an installation base, including installation base (8), the equal fixed mounting in both ends has first fixed block (9) about installation base (8) inboard, the surface movable mounting of first fixed block (9) has centre gripping arm (10), the mounting groove has all been seted up at both ends around centre gripping arm (10), movable mounting has centre gripping wheel (11) in the mounting groove that both ends were seted up around centre gripping arm (10).

5. A tubing coupling for facilitating loosening of threads according to claim 2, wherein: the last fixed surface of drive base member (14) installs second fixed block (18), the positive fixed mounting of second fixed block (18) has support column (19), the other end fixed mounting of support column (19) has second stopper (20), the surface of support column (19) is provided with spacing spring (21), the front side movable mounting of support column (19) surface has drive block (22), flourishing oil groove has been seted up to the inside of drive base member (14), movable mounting has piston (23) in the flourishing oil groove of drive base member (14) inside seting up, piston (23) fixed connection is in the bottom of drive block (22).

6. A tubing coupling for facilitating unscrewing as defined in claim 5 wherein: the upper surface of the driving base body (14) is provided with a driving groove matched with the driving block (22), and a sealing plug (24) is arranged in the driving groove formed in the upper surface of the driving base body (14).

7. A tubing coupling for facilitating loosening of threads according to claim 3, wherein: the jacking blocks (15) are T-shaped convex blocks, and the driving grooves formed in the inner sides of the mounting bases (8) are T-shaped and matched with the jacking blocks (15).

8. A tubing coupling for facilitating loosening of threads according to claim 3, wherein: the mounting base is characterized in that a mounting groove is formed in a driving groove formed in the inner side of the mounting base (8), a ball (16) is mounted in the mounting groove, and the jacking block (15) is in movable contact with the ball (16).