CN111852353B

CN111852353B - Connect oil pipe device soon

Info

Publication number: CN111852353B
Application number: CN202010702095.7A
Authority: CN
Inventors: 陈根华
Original assignee: Jilin Xinben Petroleum Equipment Co ltd
Current assignee: Jilin Xinben Petroleum Equipment Co.,Ltd.
Priority date: 2020-07-21
Filing date: 2020-07-21
Publication date: 2022-03-22
Anticipated expiration: 2040-07-21
Also published as: CN111852353A

Abstract

The invention relates to the technical field of oil pipes, in particular to a quick oil pipe connecting device, which can realize quick connection and disassembly of an oil pipe, a second connector is fixed by a movable rod to prevent a joint from being separated, and the connection strength of a first connector and a second connector is improved by the mutual matching of a limiting block and a limiting groove, so that the quick oil pipe connecting device has good connection strength, can reduce the working strength of operators, improves the working efficiency, has practical significance and popularization value, can be expected to generate good economic benefit, and comprises a pipe body, wherein the first connector and the second connector are respectively arranged at two ends of the pipe body.

Description

Connect oil pipe device soon

Technical Field

The invention relates to the technical field of oil pipes, in particular to a quick oil pipe connecting device.

Background

The oil pipe plays an important role in the process of downhole operation, is a pipeline for transporting crude oil and natural gas from a hydrocarbon reservoir to the surface after drilling is completed, bears huge pressure applied in the process of exploitation, and is a necessary technical means for ensuring the safe transportation of the crude oil in the process of downhole operation and oil field exploration.

An oil well usually extends into the ground to reach the depth of thousands of meters, and a method adopted at present is to connect a plurality of oil pipes according to the depth of underground operation so as to adapt to the underground operation at different depths; still need often take out oil pipe in actual production and carry out operations such as tripping, maintenance and can go into the well, and oil pipe's sealing connection is the main step that consumes the manpower, is unfavorable for the improvement of production efficiency, and what oil pipe connection adopted at present is that oil pipe detains to connect, and it is loaded down with trivial details and waste time and energy to go up to unload a mouthful, if improve based on prior art, research and development one kind can quick connection, oil pipe dismantled has positive meaning to improving between the current situation.

Disclosure of Invention

The invention aims to provide a quick oil pipe connecting device to solve the problems of troublesome assembly and disassembly of an oil pipe, time consumption and labor consumption in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme that the device comprises a pipe body, wherein a first connector and a second connector are respectively arranged at two ends of the pipe body, the first connector is provided with an inner cavity matched with the second connector, a plurality of clamping devices are arranged at the top of the first connector, an annular clamping block is arranged in the middle of the inner cavity, a plurality of groove bodies are arranged at the bottom of the inner cavity, a gear is rotatably arranged in each groove body, the center of the gear is connected with a connecting rod, one end, far away from the gear, of the connecting rod is connected with an arc-shaped limiting block, an annular groove is arranged outside the second connector, the clamping devices clamp the annular groove to fix the first connector and the second connector, a sealing ring matched with the annular clamping block is further arranged on the second connector, spiral teeth matched with the gear are arranged on the outer side of the bottom of the second connector, the second connector is further provided with a limiting groove which penetrates through the spiral teeth and the second connector, and the limiting groove is matched with the limiting block.

Preferably, the clamping device comprises a through hole, a baffle, a moving rod and a spring, the through hole is formed in the first connecting head, the baffle is arranged in the through hole, the moving rod penetrates through the baffle to form a moving pair with the baffle, a convex block is arranged on the moving rod, the spring is sleeved on the moving rod and located between the convex block and the baffle, and a pull ring is arranged at the outer end of the moving rod.

Preferably, the limiting block is in a block shape of 1/4 circular rings.

Preferably, the cross section of the through hole is rectangular, and the diameter of the pull ring is larger than the wide side of the through hole and smaller than the long side of the through hole.

Preferably, the clamping devices are equidistantly arranged on the top of the first connecting head.

Preferably, the moving rod and the lug are of an integrated structure.

Preferably, the number of the clamping devices is 4.

Preferably, the contact end of the moving rod and the annular groove is arc-surface-shaped.

From the above description of the structure of the present invention, compared with the prior art, the present invention has the following advantages:

when the quick oil pipe connecting device is used, a second connector of an oil pipe to be connected is inserted into an inner cavity of a first connector of another pipeline, when the second connector enters the bottom of the inner cavity, the spiral teeth drive the gear to rotate, so that the gear drives the limiting block on the connecting rod to rotate, when the second connector enters the bottom end of the inner cavity, the limiting block just enters the limiting groove, the limiting block is clamped in the limiting groove to avoid the first connector and the second connector from generating transverse displacement, then the pull ring is rotated, and as the diameter of the pull ring is larger than the wide edge of the through hole and smaller than the long edge of the through hole, when the pull ring rotates to one side of the long edge of the through hole, the pull ring enters the through hole, the spring relaxes to force the moving rod to move to abut against the annular groove, and at the moment, the moving rod abuts against the annular groove to avoid the first connector and the second connector from being separated.

When oil pipe is required to be disassembled, the pull ring is hooked out by using tools, then the pull ring is rotated to enable the pull ring to be located on the wide side of the through hole, the diameter of the pull ring is larger than the wide side of the through hole and smaller than the long side of the through hole, therefore, when the pull ring rotates to one side of the wide side of the through hole, the pull ring is clamped outside the through hole, the spring is compressed, the moving rod cannot abut against the annular groove, the first connector and the second connector can be separated, and when the second connector is pulled out, the spiral teeth drive the gears to rotate so that the limiting block leaves the limiting groove to be accommodated in the groove body.

The movable connecting rod can realize quick connection and disassembly of oil pipes, the second connector is fixed by the movable rod to prevent the separation of the connection part, and the limit block and the limit groove are matched with each other to improve the connection strength of the first connector and the second connector, so that the movable connecting rod has good connection strength, can reduce the working strength of operators and improve the working efficiency, has practical significance and popularization value, and can be expected to generate good economic benefit.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic (partial) cross-sectional configuration of the present invention;

FIG. 2 is a schematic (partial) view of a joint construction of the present invention;

FIG. 3 is an enlarged view of portion A of FIG. 1;

FIG. 4 is an enlarged view of the portion B in FIG. 1;

FIG. 5 is an enlarged view of the portion C in FIG. 1;

FIG. 6 is an enlarged view of the portion D in FIG. 2;

in the figure: the pipe body 1, the first connector 2, the inner cavity 21, the clamping device 22, the through hole 221, the baffle 222, the movable rod 223, the spring 224, the projection 225, the pull ring 226, the annular fixture block 23, the groove body 24, the gear 25, the connecting rod 26, the limiting block 27, the second connector 3, the annular groove 31, the sealing ring 32, the spiral teeth 33 and the limiting groove 34.

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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Examples

With reference to fig. 1-6, a quick oil pipe connecting device comprises a pipe body 1, a first connector 2 and a second connector 3 are respectively arranged at two ends of the pipe body 1, the first connector 2 is provided with an inner cavity 21 matched with the second connector 3, 4 clamping devices 22 are equidistantly arranged at the top of the first connector 2, each clamping device 22 comprises a through hole 221, a baffle 222, a moving rod 223 and a spring 224, the through hole 221 is arranged on the first connector 2, the baffle 222 is arranged in the through hole 221, the moving rod 223 penetrates through the baffle 222 to form a moving pair with the baffle, a convex block 225 is integrally arranged on the moving rod 223, the spring 224 is sleeved on the moving rod 223 and positioned between the convex block 225 and the baffle 222, a pull ring 226 is arranged at the outer end of the moving rod 223, and the contact end of the annular groove 31 are in an arc surface shape, the cross section of the through hole 221 is rectangular, the diameter of the pull ring 226 is larger than the wide side of the through hole 221 and smaller than the long side of the through hole 221, an annular clamping block 23 is arranged in the middle of the inner cavity 21, a plurality of groove bodies 24 are arranged at the bottom of the inner cavity 21, a gear 25 is rotatably arranged in the groove bodies 24, the center of the gear 25 is connected with a connecting rod 26, one end, far away from the gear 25, of the connecting rod 26 is connected with an arc-shaped limiting block 27, the limiting block 27 is in the shape of a 1/4 circular clamping block, an annular groove 31 is arranged outside the second connector 3, the moving rod 223 clamps the annular groove 31 to fix the first connector 2 and the second connector 3, a sealing ring 32 matched with the annular clamping block 23 is further arranged on the second connector 3, a spiral tooth 33 matched with the gear 25 is arranged outside the bottom of the second connector 3, the second connector 3 is further provided with a limiting groove 34 which penetrates through the spiral teeth 33 and the second connector 3, and the limiting groove 34 is matched with the limiting block 27.

The first connector 2 and the second connector 3 are parts which are arranged at two ends of the pipe body 1 and play a role in connecting the pipe body 1.

The moving bar 223 is a rod-shaped member that can move, the moving bar 223 has a size that matches the width of the annular groove 31 and can move along the opening penetrating the baffle 222, and the end of the moving bar 223 is formed in an arc shape in order to increase the contact area between the moving bar 223 and the annular groove 31 so that the end of the moving bar 223 can be tightly pressed against the annular groove 31.

The spring 224 is a member having elasticity in the prior art, and the spring 224 in the present invention is specifically a stainless steel spring 224 formed by winding along a rectangle matching the through hole 221.

The sealing ring 32 is a ring-shaped member having a sealing function, and is provided to improve the sealing property between the annular block 23 and the second connector 3.

The working principle of the invention is as follows: when in use, the second connector 3 of the oil pipe to be connected is inserted into the inner cavity 21 of the first connector 2 of the other pipeline, when the second connector 3 enters the bottom of the inner cavity 21, the spiral teeth 33 drive the gear 25 to rotate, so that the gear 25 drives the stop block 27 on the connecting rod 26 to rotate, when the second connector 3 enters the bottom end of the inner cavity 21, the limit block 27 just enters the limit groove 34, at this time, the limit block 27 is clamped in the limit groove 34 to prevent the first connector 2 and the second connector 3 from generating lateral displacement, then the pull ring 226 is rotated, since the diameter of the pull ring 226 is larger than the wide side of the through-hole 221 and smaller than the long side of the through-hole 221, therefore, when the pull ring 226 rotates to one side of the long side of the through hole 221, the pull ring 226 enters the through hole 221, the spring 224 expands to force the moving rod 223 to move against the annular groove 31, and the moving rod 223 presses against the annular groove 31 to prevent the first connector 2 and the second connector 3 from being separated.

When oil pipe is required to be disassembled, the pull ring 226 is hooked out by using a tool, then the pull ring 226 is rotated to enable the pull ring 226 to be located on the wide side of the through hole 221, the diameter of the pull ring 226 is larger than that of the wide side of the through hole 221 and smaller than that of the long side of the through hole 221, therefore, when the pull ring 226 rotates to one side of the wide side of the through hole 221, the pull ring 226 is clamped outside the through hole 221, the spring 224 is compressed, the moving rod 223 can not abut against the annular groove 31, the first connector 2 and the second connector 3 can be separated, and when the second connector 3 is pulled out, the spiral teeth 33 drive the gear 25 to rotate so that the limit block 27 is separated from the limit groove 34 and is contained in the groove body 24.

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. The utility model provides a connect oil pipe device soon, includes body (1), body (1) both ends are equipped with first connector (2) and second connector (3) respectively, its characterized in that:

the first connector (2) is provided with an inner cavity (21) matched with the second connector (3), the top of the first connector (2) is provided with a plurality of clamping devices (22), the middle of the inner cavity (21) is provided with an annular clamping block (23), the bottom of the inner cavity (21) is provided with a plurality of groove bodies (24), a gear (25) is rotatably arranged in each groove body (24), the center of the gear (25) is connected with a connecting rod (26), and one end, far away from the gear (25), of the connecting rod (26) is connected with an arc-shaped limiting block (27);

second connector (3) outside is equipped with annular groove (31), chucking device (22) chucking annular groove (31) are realized the fixed of first connector (2) and second connector (3), still be equipped with on second connector (3) with annular fixture block (23) complex sealing washer (32), second connector (3) bottom outside be equipped with gear (25) complex spiral tooth (33), still be equipped with on second connector (3) and link up spiral tooth (33) spacing groove (34) of second connector (3), spacing groove (34) with stopper (27) match.

2. The quick connect tubing assembly of claim 1, wherein: chucking device (22) include through-hole (221), baffle (222), carriage release lever (223) and spring (224), through-hole (221) are located on first connecting head (2), baffle (222) are located in through-hole (221), carriage release lever (223) run through baffle (222) rather than constituting the sliding pair, be equipped with lug (225) on carriage release lever (223), spring (224) cover is located on carriage release lever (223) lie in lug (225) with between baffle (222), carriage release lever (223) outer end is equipped with pull ring (226).

3. The quick connect tubing assembly of claim 1, wherein: the limiting block (27) is in a block shape of 1/4 circular rings.

4. The quick connect tubing assembly of claim 2, wherein: the cross section of the through hole (221) is rectangular, and the diameter of the pull ring (226) is larger than the wide side of the through hole (221) and smaller than the long side of the through hole (221).

5. The quick connect tubing assembly of claim 1, wherein: the clamping devices (22) are equidistantly arranged at the top of the first connecting head (2).

6. The quick connect tubing assembly of claim 2, wherein: the moving rod (223) and the lug (225) are of an integrated structure.

7. The quick connect tubing assembly of claim 1, wherein: the number of the clamping devices (22) is 4.

8. The quick connect tubing assembly of claim 2, wherein: the contact end of the moving rod (223) and the annular groove (31) is arc-surface-shaped.