CN218543482U

CN218543482U - Buckle changing joint for oil pipe

Info

Publication number: CN218543482U
Application number: CN202223076930.4U
Authority: CN
Inventors: 杨冬; 赵学冉; 胡静; 郭道凡
Original assignee: Guangdong Xunwei Technology Development Co ltd
Current assignee: Guangdong Xunwei Technology Development Co ltd
Priority date: 2022-11-18
Filing date: 2022-11-18
Publication date: 2023-02-28
Anticipated expiration: 2032-11-18

Abstract

The utility model relates to a become the lock joint field, in particular to change lock joint for later main oil pipe. The body is sequentially provided with a first connecting part, a second connecting part and a third connecting part. The mounting holes are formed in the first connecting portion and the second connecting portion and are arranged along the direction of the second connecting portion along the free end of the first connecting portion, the mounting holes are provided with opening ends and tail ends, the diameter of the mounting holes is gradually reduced along the direction of the tail ends along the opening ends, first threads are arranged on the inner walls of the mounting holes, and second threads connected with the rotary short sections are arranged on the outer walls of the third connecting portions. The problem of different oil pipe diameters need a plurality of change knot to connect is solved.

Description

Buckle changing joint for oil pipe

[ technical field ] A method for producing a semiconductor device

The utility model relates to a become the lock joint field, in particular to change lock joint for later main oil pipe.

[ background of the invention ]

At present, oil pipes and downhole logging tools commonly used at home and abroad all adopt threads of API technical standards, in the logging process, the oil pipes are connected with rotary short sections through variable buckle joints, and oil pipes with different diameters are needed to be used at different operation positions according to actual logging requirements, so that the requirement that the connecting process requirement can be met by connecting the variable buckle joints by using a plurality of variable buckle joints is met, the requirement of the logging process is met, the connection is complex, and the connection precision is difficult to guarantee.

For example, chinese patent publication numbers are: CN202121232909.1 is a convenient-to-install oil pipe change-buckle connector, and the device can be suitable for oil pipes of different sizes by adopting the common cooperation of the connecting blocks, the baffle plates and the springs and the connecting pipes.

When the variable buckle joint of above-mentioned patent structure is installed, still need select the connecting pipe of suitable size according to defeated oil pipe's internal diameter size, then press the connecting block to the joint pipe direction simultaneously, then the connecting block compresses the spring this moment, simultaneously under the restriction of guide bar, make connecting block and joint pipe remain relative perpendicular all the time, then it is outside to rotate the connecting pipe to the connecting block, make its zonulae occludens, then all twine sealed sticky tape at cardboard external surface and connecting pipe external surface, fill in the connecting pipe between the defeated oil pipe is inside again, then rotate the joint pipe, and make the connecting pipe carry out block fastening and part numerous with defeated oil pipe through the screw thread, complex operation.

[ Utility model ] content

Utility model's aim at to prior art's defect with not enough, provide a simple structure, simple to operate's transformer joint for oil pipe.

To the aforesaid problem, the utility model discloses a following technical scheme:

the utility model provides an oil pipe is with becoming knot connects, includes the body, be equipped with first connecting portion, second connecting portion and third connecting portion on the body in proper order, first connecting portion, second connecting portion and third connecting portion structure as an organic whole, set up the mounting hole on first connecting portion and the second connecting portion, the mounting hole sets up to second connecting portion direction along first connecting portion free end, the mounting hole is equipped with open end and tail end, the diameter of mounting hole reduces to the tail end direction along the open end gradually, be equipped with first screw thread on the mounting hole inner wall, the outer wall of third connecting portion is equipped with the second screw thread of being connected with rotatory nipple joint.

By arranging the device between the oil pipe and the rotary short section, the device can be compatible with oil pipes with different diameters, the thread parameters of the device execute API standards, and the universality and interchangeability of products are kept.

In a possible implementation manner, the mounting hole includes a first inclined hole, a second inclined hole and a round head hole, the first inclined hole, the second inclined hole and the round head hole are communicated, the first thread is spirally arranged along the inner wall of the first inclined hole from the opening end to the direction of the second inclined hole, the second inclined hole is arranged between the first inclined hole and the round head hole, the opening end is arranged on the first inclined hole, and the diameter of the first inclined hole gradually decreases from the opening end to the direction of the second inclined hole.

The diameter of different oil pipes can be compatible by gradually reducing the diameter, so that the cost for achieving the purpose of reducing the diameter by increasing other variable buttons is effectively reduced.

In a possible embodiment, the round head hole is arranged in the second connecting portion, and a plurality of air holes are averagely arranged on the outer wall of the second connecting portion and are communicated with the round head hole.

Through arranging the air hole on the second connecting part, when the oil pipe is screwed into the first inclined hole, air in the mounting hole can be discharged from the air hole to balance internal and external pressures

In a possible embodiment, the free end of the third connecting portion is provided with a plurality of annular grooves, which are arranged on one side of the second thread.

Through setting up the annular groove, install the sealing washer on the annular groove, then install rotatory nipple joint again, the sealing washer plays the effect of isolating water, gas, prevents that water, gas from getting into rotatory nipple joint, leads to damaging.

In one possible embodiment, the first, second and third connecting portions are coaxial with the first, second and bullnose holes.

In a possible embodiment, the outer side of the first connection portion is provided with a plurality of clamping surfaces which are uniformly distributed in the circumferential direction.

Through setting up a plurality of clamping faces, at the in-process of installation with the dismantlement, what the spanner can be stable cliies the change lock joint, convenient operation.

In a possible embodiment, the outer wall of the second connecting portion is provided with an outer transition taper.

In a possible embodiment, the inner wall of the second inclined hole is provided with an inner transition conical surface.

Through setting up outside transition conical surface and inside transition conical surface, avoided because of the influence of external diameter reduction to product joint strength.

The utility model relates to an oil pipe is with becoming spiral-lock joint's beneficial effect as follows:

the utility model relates to an oil pipe is with becoming knot connects through setting up inside and outside transition conical surface on second connecting portion and second inclined hole, has avoided oil pipe to reduce the influence to product joint strength because of the external diameter. Because the diameter of first inclined hole reduces to second inclined hole direction along the open end gradually to make the screw thread reduce gradually, thereby carry out threaded connection with the oil pipe that the diameter is different. The utility model discloses a screw thread parameter execution API standard keeps commonality and the interchangeability of product. And set up the clamping face in the outside of first connecting portion, easy to assemble and dismantlement.

The conception, the specific structure and the effects of the present invention will be further described with reference to the accompanying drawings, so as to fully understand the objects, the features and the effects of the present invention.

[ description of the drawings ]

Fig. 1 is a perspective view of the present invention;

fig. 2 is a cross-sectional view of the present invention;

FIG. 3 is a front view of the present invention;

a body 100; a first connection portion 110; a second connecting portion 120; a third connecting portion 130; an open end 200; a tail end 300; a first thread 410; a second thread 420; a first inclined hole 510; a second inclined hole 520; a round head hole 530; an air hole 600; an annular groove 660; a clamping surface 700; an outer transition taper 810; an inner transition taper 820.

[ detailed description ] embodiments

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may for example be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; either directly or indirectly through intervening media, or may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases for those skilled in the art. In addition, in the description of the present invention, "a plurality" or "a plurality" means two or more unless otherwise specified.

Referring to fig. 1-3, fig. 1-3 show a preferred embodiment of a snap-fit joint for tubing:

the utility model provides an oil pipe is with becoming knot connects, includes body 100, and in this implementation, body 100 can be equipped with first connecting portion 110, second connecting portion 120 and third connecting portion 130 in proper order, and first connecting portion 110, second connecting portion 120 and third connecting portion 130 are the integrated configuration, and the integrated configuration has guaranteed the whole rigidity of first connecting portion 110, second connecting portion 120 and third connecting portion 130, when using, can not take place fracture and dislocation.

In this embodiment, mounting holes are formed in the first connecting portion 110 and the second connecting portion 120 for connecting with an oil pipe, the mounting holes are provided with an open end 200 and a tail end 300, the mounting holes Kong Fenwei are provided with a first inclined hole 510, a second inclined hole 520 and a round head hole 530, and the first inclined hole 510, the second inclined hole 520 and the round head hole 530 are communicated.

The inner wall of the mounting hole is provided with a first thread 410 for connecting with an oil pipe, and the outer wall of the third connecting part 130 is provided with a second thread 420 connected with the rotary short section; the first screw thread 410 is spirally arranged along the inner wall of the first inclined hole 510 from the opening end 200 to the second inclined hole 520, the second inclined hole 520 is arranged between the first inclined hole 510 and the round head hole 530, the opening end 200 is arranged on the first inclined hole 510, and the diameter of the first inclined hole 510 gradually decreases along the opening end 200 to the second inclined hole 520; thereby enabling the diameter of the first angled bore 510 to be gradually reduced to accommodate tubing threads of various diameters. The thread parameters of the device execute API standard, and the universality and interchangeability of products are kept. In this example, first thread 410 is 2-3/8"PAC box internal threads with 4 buttons per inch and a taper of 1/8.

During installation, the rotary short section is firstly connected with the second thread 420 of the third connecting part 130, then the oil pipe is connected with the first thread 410, and as the first thread 410 is positioned on the first inclined hole 510, the thread is gradually locked when being gradually screwed in, so that the change-buckle joint is fixed on the oil pipe; for further locking, 6 clamping surfaces 700 are provided on the outer side of the first connecting portion 110, which are evenly distributed in the circumferential direction, and when the first connecting portion is not screwed by hand, the locking is continued by using a wrench.

In this embodiment, the rotary short section adopted is a rotary short section of 1-3/16-12UN, and a suitable rotary short section can be selected according to production needs, which is not repeated herein.

More specifically, the round-head holes 530 are disposed in the second connection portion 120, and a plurality of air holes 600 are averagely disposed along the outer wall of the second connection portion 120, wherein the air holes 600 are communicated with the round-head holes 530. The second connection portion 120 is provided with 4 air holes 600 for balancing internal and external pressures, and since the oil pipe and the variable buckle joint belong to precision parts, when the oil pipe is engaged with the first thread 410 of the variable buckle joint, air in the mounting hole is discharged from the air holes 600, so that the oil pipe is completely engaged with the first thread 410.

By providing the air hole 600 in the second connection portion 120, when the oil pipe is screwed into the first inclined hole 510, the air in the mounting hole is discharged through the air hole 600 to balance the internal and external pressures

More specifically, the free end of the third connecting portion 130 is provided with 2 annular grooves 660, and the annular grooves 660 are provided at one side of the second screw 420. 2 annular groove 660 is used for the cover to establish the sealing washer, and when rotatory nipple joint and the meshing of second screw thread 420, the sealing washer was contradicted with rotatory nipple joint this moment to it gets into rotatory nipple joint at rotatory nipple joint and the junction of second screw thread 420 to separate materials such as water, gas, grit, influences the result of use.

Through setting up annular groove 660, install the sealing washer on annular groove 660, then install rotatory nipple joint again, the sealing washer plays the effect of isolating water, gas, prevents that water, gas from getting into rotatory nipple joint, leads to damaging.

More specifically, the first, second and

third connection parts

110, 120 and 130 are coaxial with the first, second and round-

head holes

510, 520 and 530.

More specifically, the outer wall of the second connecting portion 120 is provided with an outer transition conical surface 810; the taper angle of the outer transition taper surface 810 is 20 °, the inner wall of the second inclined hole 520 is provided with an inner transition taper surface 820, and the taper angle of the inner transition taper surface 820 is 30 °. The outer transition conical surface 810 and the inner transition conical surface 820 are arranged, so that the influence on the product connection strength due to the reduction of the outer diameter is avoided.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an oil pipe is with becoming knot connects which characterized in that: including body (100), be equipped with first connecting portion (110), second connecting portion (120) and third connecting portion (130) on body (100) in proper order, first connecting portion (110), second connecting portion (120) and third connecting portion (130) are the integral structure, set up the mounting hole on first connecting portion (110) and the second connecting portion (120), the mounting hole sets up to second connecting portion (120) direction along first connecting portion (110) free end, the mounting hole is equipped with open end (200) and tail end (300), the diameter of mounting hole reduces to tail end (300) direction along open end (200), be equipped with first screw thread (410) on the mounting hole inner wall, the outer wall of third connecting portion (130) is equipped with second screw thread (420) of being connected with rotatory nipple joint.

2. The buckling-changeable joint for the oil pipe as claimed in claim 1, wherein: the mounting hole comprises a first inclined hole (510), a second inclined hole (520) and a round head hole (530), the first inclined hole (510), the second inclined hole (520) and the round head hole (530) are communicated, a first thread (410) is spirally arranged along the inner wall of the first inclined hole (510) from the opening end (200) to the direction of the second inclined hole (520), the second inclined hole (520) is arranged between the first inclined hole (510) and the round head hole (530), the opening end (200) is arranged on the first inclined hole (510), and the diameter of the first inclined hole (510) is gradually reduced along the opening end (200) to the direction of the second inclined hole (520).

3. The buckling-changeable joint for the oil pipe according to claim 2, wherein: round head hole (530) set up in second connecting portion (120), are equipped with a plurality of gas pockets (600) on the average along second connecting portion (120) outer wall, gas pocket (600) and round head hole (530) intercommunication.

4. The buckling-changeable joint for the oil pipe as claimed in claim 1, wherein: the free end of the third connecting part (130) is provided with a plurality of annular grooves (660), and the annular grooves (660) are arranged on one side of the second thread (420).

5. The buckling-changeable joint for the oil pipe according to claim 2, wherein: the first connecting portion (110), the second connecting portion (120) and the third connecting portion (130) are coaxial with the first inclined hole (510), the second inclined hole (520) and the round head hole (530).

6. The buckling-changeable joint for the oil pipe as claimed in claim 1, wherein: the outer side surface of the first connecting part (110) is provided with a plurality of clamping surfaces (700) which are uniformly distributed in the circumferential direction.

7. The buckling-changeable joint for the oil pipe as claimed in claim 1, wherein: the outer wall of the second connecting part (120) is provided with an outer transition conical surface (810).

8. The buckling-changeable joint for the oil pipe according to claim 2, wherein: the inner wall of the second inclined hole (520) is provided with an inner transition conical surface (820).