CN216788353U

CN216788353U - Novel polish rod sealer for mechanical oil extraction double-pipe wellhead

Info

Publication number: CN216788353U
Application number: CN202220388307.3U
Authority: CN
Inventors: 孙建勇; 马延峰; 吴波; 常鲁慧; 程静; 周家祥; 杜锋; 吴斌; 陈华; 徐惠
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-02-24
Filing date: 2022-02-24
Publication date: 2022-06-21
Anticipated expiration: 2032-02-24

Abstract

The utility model relates to the technical field of oil extraction, and discloses a novel polished rod sealer of a mechanical oil extraction double-pipe wellhead, which comprises a base, a first connecting pipe and a splicing pipe, wherein the splicing pipe and the first connecting pipe are movably connected with the base through a disassembling mechanism, the disassembling mechanism comprises an inserting rod, an upper fastening ring, a lower fastening ring, a clamping groove and a sealing gasket, the upper fastening ring and the lower fastening ring are both in threaded connection with the first connecting pipe, the upper end surface of the first connecting pipe is provided with the clamping groove, the inserting rod is fixedly connected with the splicing pipe, the inserting rod is inserted into the clamping groove, the sealing gasket is fixedly connected with the first connecting pipe, through the disassembling mechanism, a plurality of splicing pipes are connected end to form a hollow pipe, on the basis of realizing the effect of flexibly changing the length of a pipeline in the prior art, the scheme adopts a mode of inserting the splicing pipe and the first connecting pipe to realize more convenient installation compared with a mode of spirally rotating the prior art, the efficiency is higher.

Description

Novel polish rod sealer for mechanical oil extraction double-tube wellhead

Technical Field

The utility model relates to the technical field of oil extraction, in particular to a novel polish rod sealer for a mechanical oil extraction double-pipe wellhead.

Background

The prior art discloses a novel polish rod sealer (CN202121160231.0) of double-barrelled well head of mechanical oil recovery, it includes mount pad, second grade sealer, second grade seal pressure cap, one-level seal pressure cap, apron and spring, and the first installation cavity that link up from top to bottom is equipped with in the middle part of the second grade sealer, is equipped with first spacing ring platform in the first installation cavity, and the inboard fixed mounting in first installation cavity that corresponds first spacing ring platform lower side position has the mount pad. The polished rod sealing device has the advantages of reasonable and compact structure and convenience in use, the secondary sealing body and the primary sealing body are arranged to carry out double sealing on the outer side of the polished rod, the polished rod sealing device has a good sealing effect to prevent oil and gas from leaking, the mounting seat can be applied to different wells, the application range is wider, and the polished rod sealing device has the characteristics of safety, labor saving, simplicity, convenience and high efficiency.

The inventor finds that the technical scheme still has at least the following defects that a plurality of hollow pipes are spliced together to form a pipeline in a spiral rotating mode in the prior art, and the pipeline needs to be repeatedly rotated and screwed in the installation process, so that certain inconvenience exists.

Therefore, a novel polish rod sealer for a mechanical oil extraction double-pipe wellhead is provided.

SUMMERY OF THE UTILITY MODEL

The utility model mainly solves the technical problems in the prior art and provides a novel polish rod sealer for a mechanical oil extraction double-pipe wellhead.

In order to achieve the purpose, the novel polished rod sealer for the mechanical oil extraction double-pipe wellhead comprises a base, a first connecting pipe and a splicing pipe, wherein the first connecting pipe is movably connected with the base, the splicing pipe is movably connected with the first connecting pipe, the splicing pipe and the first connecting pipe are movably connected with the base through a disassembling mechanism, the disassembling mechanism comprises an inserting rod, an upper fastening ring, a lower fastening ring, a clamping groove and a sealing gasket, the upper fastening ring and the lower fastening ring are both in threaded connection with the first connecting pipe, the clamping groove is formed in the upper end face of the first connecting pipe, the inserting rod is fixedly connected with the splicing pipe, the inserting rod is inserted into the clamping groove, and the sealing gasket is fixedly connected with the first connecting pipe.

Preferably, the up end of base sets up the circular port with first connecting pipe adaptation, and first connecting pipe passes the circular port of base, and last clamping ring is located the base top, and lower clamping ring is located the below of first connecting pipe, and the horizontal cross-section of draw-in groove is rectangle and draw-in groove and inserted bar looks adaptation, and sealed the embedding is in the up end of first connecting pipe.

Preferably, the disassembling mechanism further comprises a horizontal pipe, a pulling rod, an inserting rod, a reset spring, a separating ring, a limiting block and a clamping tooth, the horizontal pipe is fixedly connected with the first connecting pipe, the pulling rod is slidably connected with the horizontal pipe, the inserting rod is fixedly connected with the pulling rod, the separating ring is fixedly connected with the horizontal pipe, the inserting rod penetrates through the separating ring, the reset spring is sleeved on the surface of the inserting rod, the limiting block is fixedly connected with the inserting rod, the clamping tooth is arranged on the side wall of the limiting block, and a notch matched with the clamping tooth is arranged on the wall surface of the inserting rod.

As preferred, the horizontal pipe is hollow circular pipe, the terminal surface of horizontal pipe and the outer wall fixed connection of first connecting pipe, pulling rod and horizontal pipe adaptation and pulling rod and horizontal pipe internal face sliding connection, separate the ring and be the ring form and separate the ring and the interior circumference fixed connection of horizontal pipe, alternate the pole and the terminal surface fixed connection of pulling rod, reset spring's one end and the lateral wall fixed connection who alternates the pole and reset spring's the other end and the terminal surface fixed connection who cuts off the ring.

Preferably, the horizontal pipe is a hollow pipe, the horizontal pipe is divided into two sections, the first section of the horizontal pipe is internally rectangular hollow, the second section of the horizontal pipe is internally circular hollow, the end face of the horizontal pipe is fixedly connected with the outer wall face of the first connecting pipe, the pulling rod is matched with the first section of the horizontal pipe and is in sliding connection with the inner wall face of the horizontal pipe, the partition ring is circular and is fixedly connected with the inner circumferential face of the partition ring and the horizontal pipe, the insertion rod is fixedly connected with the end face of the pulling rod, one end of the reset spring is fixedly connected with the side wall face of the insertion rod, and the other end of the reset spring is fixedly connected with the end face of the partition ring.

Preferably, the limiting block is a rectangular block, a rectangular groove matched with the limiting block is formed in the circumferential surface of the first connecting pipe, the limiting block penetrates through the circumferential surface of the first connecting pipe, the limiting block is attached to the insertion rod, and a clamping tooth is formed in one surface, attached to the insertion rod, of the limiting block, and the clamping tooth is triangular prism-shaped.

Preferably, the splicing pipes and the first connecting pipes are circular pipes with the same diameter, the same disassembling mechanisms are arranged on the outer circumferential surfaces of the splicing pipes, the number of the splicing pipes is at least three, and the adjacent splicing pipes are connected end to end through the same disassembling mechanisms.

Advantageous effects

The utility model provides a novel polish rod sealer for a mechanical oil extraction double-pipe wellhead. The method has the following beneficial effects:

1. this novel polished rod sealer of double-barrelled well head of mechanical oil recovery disassembles the mechanism through setting up, utilizes many spliced tubes head and the tail to link to each other and forms a hollow tube, on realizing the nimble effect basis that changes pipeline length of prior art, the spiral pivoted mode of this scheme prior art relatively adopts spliced pipe and first connecting pipe grafting mode, and it is more convenient to install, and efficiency is higher.

2. This novel polished rod sealer of double-barrelled well head of mechanical oil recovery, through when pegging graft splicing pipe and first connecting pipe, promote the stopper through the notch on splicing rod surface and slide, the stopper drives interlude pole and pulling rod towards the direction motion and tensile reset spring of keeping away from first connecting pipe, the latch separates with the grafting pole, after in the grafting pole gets into the draw-in groove completely, reset spring's elasticity promotes to alternate the pole and makes the stopper laminate with the grafting pole once more, realize spacing to the grafting pole, avoid grafting pole and first connecting pipe to break away from, on the basis of realizing embodiment one, improve the steadiness that splicing pipe and first connecting pipe pegged graft, convenient to detach when being convenient for to install.

3. This novel polished rod sealer of double-barrelled well head of mechanical oil recovery sets the rectangular block through promoting the pole to pull, promotes when the stopper keeps away from first connecting pipe at the peg graft pole, and the pole that pulls keeps the horizontal slip can not rotate, on the basis of realizing the two effects of embodiment, keeps the stability of stopper slip in-process, ensures the stability that latch can peg graft the pole block and then improve whole installation.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

The structures, the proportions, the sizes, and the like shown in the specification are only used for matching with the contents disclosed in the specification, so that those skilled in the art can understand and read the present invention, and do not limit the conditions for implementing the present invention, so that the present invention has no technical essence, and any modifications of the structures, changes of the proportion relation, or adjustments of the sizes, should still fall within the scope of the technical contents disclosed in the present invention without affecting the efficacy and the achievable purpose of the present invention.

FIG. 1 is an exploded view of the present invention;

FIG. 2 is an enlarged view of A of FIG. 1 according to the present invention;

FIG. 3 is an exploded view of the pulling rod and horizontal tube of the present invention;

FIG. 4 is an enlarged view of B of FIG. 3 according to the present invention;

FIG. 5 is an exploded view of the pulling rod and the horizontal tube in the third embodiment of the present invention.

Illustration of the drawings:

10. a base; 11. a first connecting pipe; 12. splicing the tubes; 20. a plug rod; 21. an upper fastening ring; 22. a lower fastening ring; 23. a card slot; 24. a gasket; 25. a horizontal tube; 26. pulling a rod; 27. inserting the rod; 28. a return spring; 29. a blocking ring; 30. a limiting block; 31. and (4) clamping teeth.

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.

The first embodiment is as follows: a novel polish rod sealer for a mechanical oil production double-tube wellhead comprises a base 10, a first connecting tube 11 and a splicing tube 12, wherein the first connecting tube 11 is movably connected with the base 10, the splicing tube 12 is movably connected with the first connecting tube 11, the splicing tube 12 and the first connecting tube 11 are movably connected with the base 10 through a disassembling mechanism, the disassembling mechanism comprises an inserting rod 20, an upper fastening ring 21, a lower fastening ring 22, a clamping groove 23 and a sealing gasket 24, the upper fastening ring 21 and the lower fastening ring 22 are both in threaded connection with the first connecting tube 11, the upper end face of the first connecting tube 11 is provided with the clamping groove 23, the inserting rod 20 is fixedly connected with the splicing tube 12, the inserting rod 20 is inserted into the clamping groove 23, the sealing gasket 24 is fixedly connected with the first connecting tube 11, the upper end face of the base 10 is provided with a circular hole matched with the first connecting tube 11, the first connecting tube 11 penetrates through the circular hole of the base 10, the upper fastening ring 21 is positioned above the base 10, lower tighrening ring 22 is located the below of first connecting pipe 11, the horizontal cross-section of draw-in groove 23 is rectangle and draw-in groove 23 and peg graft 20 looks adaptation, sealed pad 24 is embedded in the up end of first connecting pipe 11, disassemble the mechanism through setting up, utilize many spliced pipes 12 end to form a hollow tube, on the effect basis of realizing the nimble pipeline length that changes of prior art, this scheme is prior art's spiral pivoted mode relatively, adopt spliced

pipe

12 and 11 grafting modes of first connecting pipe, it is more convenient to install, efficiency is higher.

Example two: as shown in fig. 1-5, the disassembly mechanism further includes a horizontal tube 25, a pulling rod 26, a penetrating rod 27, a return spring 28, a partition ring 29, a limiting block 30 and a latch 31, the horizontal tube 25 is fixedly connected to the first connecting tube 11, the pulling rod 26 is slidably connected to the horizontal tube 25, the penetrating rod 27 is fixedly connected to the pulling rod 26, the partition ring 29 is fixedly connected to the horizontal tube 25, the penetrating rod 27 penetrates the partition ring 29, the return spring 28 is sleeved on the surface of the penetrating rod 27, the limiting block 30 is fixedly connected to the penetrating rod 27, the side wall of the limiting block 30 is provided with the latch 31, the wall of the inserting rod 20 is provided with a notch adapted to the latch 31, the horizontal tube 25 is a hollow circular tube, the end surface of the horizontal tube 25 is fixedly connected to the outer wall surface of the first connecting tube 11, the pulling rod 26 is adapted to the horizontal tube 25, and the pulling rod 26 is slidably connected to the inner wall surface of the horizontal tube 25, the partition ring 29 is circular ring-shaped, the partition ring 29 is fixedly connected with the inner circumferential surface of the horizontal pipe 25, the inserting rod 27 is fixedly connected with the end surface of the pulling rod 26, one end of the reset spring 28 is fixedly connected with the side wall surface of the inserting rod 27, the other end of the reset spring 28 is fixedly connected with the end surface of the partition ring 29, the limiting block 30 is a rectangular block, the circumferential surface of the first connecting pipe 11 is provided with a rectangular groove matched with the limiting block 30, the limiting block 30 penetrates through the circumferential surface of the first connecting pipe 11, the limiting block 30 is attached to the inserting rod 20, one surface of the limiting block 30 attached to the inserting rod 20 is provided with a latch 31, the latch 31 is triangular prism-shaped, the splicing pipe 12 and the first connecting pipe 11 are circular pipes with equal diameters, the same mechanisms are arranged on the outer circumferential surface of the splicing pipe 12, at least three splicing pipes 12 are provided, adjacent splicing pipes 12 are connected end to end by the same disassembly mechanism, when the splicing pipe 12 is inserted into the first connecting pipe 11, the notch on the surface of the insertion rod 20 pushes the limiting block 30 to slide, the limiting block 30 drives the insertion rod 27 and the pulling rod 26 to move towards the direction away from the first connecting pipe 11 and stretch the reset spring 28, the latch 31 is separated from the insertion rod 20, after the insertion rod 20 completely enters the clamping groove 23, the elastic force of the reset spring 28 pushes the insertion rod 27 to enable the limiting block 30 to be attached to the insertion rod 20 again, the limitation on the insertion rod 20 is achieved, the insertion rod 20 is prevented from being separated from the first connecting pipe 11, on the basis of the first embodiment, the insertion stability of the insertion pipe 12 and the first connecting pipe 11 is improved, and the installation and the disassembly are facilitated.

Example three: a novel polish rod sealer for a mechanical oil extraction double-tube wellhead is shown in figures 1-5, wherein a horizontal tube 25 is a hollow tube, the horizontal tube 25 is divided into two sections, the interior of the front half section of the horizontal tube 25 is rectangular hollow, the interior of the rear half section of the horizontal tube 25 is circular hollow, the end surface of the horizontal tube 25 is fixedly connected with the outer wall surface of a first connecting tube 11, a pulling rod 26 is matched with the front half section of the horizontal tube 25, the pulling rod 26 is in sliding connection with the inner wall surface of the horizontal tube 25, a breaking ring 29 is circular ring-shaped, the breaking ring 29 is fixedly connected with the inner circumferential surface of the horizontal tube 25, an inserting rod 27 is fixedly connected with the end surface of the pulling rod 26, one end of a reset spring 28 is fixedly connected with the side wall surface of the inserting rod 27, the other end of the reset spring 28 is fixedly connected with the end surface of the breaking ring 29, the pulling rod 26 is set to be a rectangular block, when the inserting rod 20 pushes a limit block 30 to be far away from the first connecting tube 11, the pulling rod 26 keeps horizontal sliding and can not rotate, on the basis of realizing the second effect of the embodiment, the stability of the limiting block 30 in the sliding process is kept, and the clamping teeth 31 can be clamped by the inserting rod 20, so that the stability of the whole installation process is improved.

The working principle of the utility model is as follows: inserting the splicing pipe 12 into the first connecting pipe 11, inserting the inserting rod 20 into the clamping groove 23, pushing the limiting block 30 to slide by the notch on the surface of the inserting rod 20, driving the inserting rod 27 and the pulling rod 26 to move towards the direction far away from the first connecting pipe 11 by the limiting block 30 and stretching the reset spring 28, separating the latch 31 from the inserting rod 20, and after the inserting rod 20 completely enters the clamping groove 23, pushing the inserting rod 27 by the elastic force of the reset spring 28 to enable the limiting block 30 to be attached to the inserting rod 20 again, so that the limiting of the inserting rod 20 is realized.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. Novel polished rod sealer of double-barrelled well head of mechanical oil recovery, including base (10), first connecting pipe (11) and concatenation pipe (12), first connecting pipe (11) and base (10) swing joint, concatenation pipe (12) and first connecting pipe (11) swing joint, its characterized in that: splicing pipe (12) and first connecting pipe (11) are through disassembling mechanism and base (10) swing joint, disassemble the mechanism and include peg graft pole (20), go up fastening ring (21), fastening ring (22) down, draw-in groove (23) and sealed pad (24), go up fastening ring (21) and fastening ring (22) down all with first connecting pipe (11) threaded connection, draw-in groove (23) are seted up to the up end of first connecting pipe (11), peg graft pole (20) and splicing pipe (12) fixed connection and peg graft pole (20) and draw-in groove (23) and peg graft, sealed pad (24) and first connecting pipe (11) fixed connection.

2. The novel polish rod sealer for mechanical oil extraction double-barreled wellhead according to claim 1, characterized in that: the circular port with first connecting pipe (11) adaptation is seted up to the up end of base (10), and the circular port of base (10) is passed in first connecting pipe (11), goes up fastening ring (21) and is located base (10) top, and lower fastening ring (22) are located the below of first connecting pipe (11), and the horizontal cross-section of draw-in groove (23) is rectangle and draw-in groove (23) and peg graft pole (20) looks adaptation, and sealed the up end that inlays in first connecting pipe (11) in pad (24).

3. The novel polish rod sealer for mechanical oil extraction double-barreled wellhead according to claim 1, characterized in that: the disassembly mechanism further comprises a horizontal pipe (25), a pulling rod (26), a penetrating rod (27), a reset spring (28), a partition ring (29), a limiting block (30) and a clamping tooth (31), the horizontal pipe (25) is fixedly connected with the first connecting pipe (11), the pulling rod (26) is slidably connected with the horizontal pipe (25), the penetrating rod (27) is fixedly connected with the pulling rod (26), the partition ring (29) is fixedly connected with the horizontal pipe (25), the penetrating rod (27) penetrates through the partition ring (29), the reset spring (28) is sleeved on the surface of the penetrating rod (27), the limiting block (30) is fixedly connected with the penetrating rod (27), the clamping tooth (31) is arranged on the side wall of the limiting block (30), and a notch matched with the clamping tooth (31) is arranged on the wall surface of the inserting rod (20).

4. The novel polish rod sealer of mechanical oil extraction double-barreled wellhead according to claim 3, characterized in that: horizontal pipe (25) are hollow pipe, and the terminal surface of horizontal pipe (25) and the outer wall fixed connection of first connecting pipe (11), pulling rod (26) and horizontal pipe (25) adaptation and pulling rod (26) and horizontal pipe (25) internal face sliding connection, separate ring (29) and be the ring form and separate the inner peripheral face fixed connection of ring (29) and horizontal pipe (25), alternate the terminal surface fixed connection of pole (27) and pulling rod (26), the other end of the one end of reset spring (28) and the lateral wall face fixed connection of alternate pole (27) and reset spring (28) and the terminal surface fixed connection that separates ring (29).

5. The novel polish rod sealer for mechanical oil recovery double-barreled wellhead according to claim 3, characterized in that: horizontal pipe (25) is the hollow tube, and horizontal pipe (25) divide into two sections, and the first half section inside of horizontal pipe (25) is rectangle cavity, and the latter half section inside of horizontal pipe (25) is circular cavity, and the terminal surface of horizontal pipe (25) and the outer wall fixed connection of first connecting pipe (11), pulling rod (26) and the first half section adaptation of horizontal pipe (25) and pulling rod (26) and horizontal pipe (25) internal face sliding connection, separate ring (29) and be the ring form and separate interior circumference fixed connection of ring (29) and horizontal pipe (25), end fixed connection of interlude pole (27) and pulling rod (26), the one end of reset spring (28) and the side wall fixed connection of interlude pole (27) and the other end of reset spring (28) and the end fixed connection that separates ring (29).

6. The novel polish rod sealer for mechanical oil recovery double-barreled wellhead according to claim 3, characterized in that: the limiting block (30) is a rectangular block, a rectangular groove matched with the limiting block (30) is formed in the circumferential surface of the first connecting pipe (11), the limiting block (30) penetrates through the circumferential surface of the first connecting pipe (11), the limiting block (30) is attached to the insertion rod (20), clamping teeth (31) are formed in one surface, attached to the insertion rod (20), of the limiting block (30), and the clamping teeth (31) are triangular prisms.

7. The novel polish rod sealer for mechanical oil recovery double-barreled wellhead according to claim 6, characterized in that: the splicing tubes (12) and the first connecting tubes (11) are round tubes with the same diameter, the same disassembling mechanisms are arranged on the outer circumferential surfaces of the splicing tubes (12), the number of the splicing tubes (12) is at least three, and the adjacent splicing tubes (12) are connected end to end through the same disassembling mechanisms.