CN218563622U - Oil pipe hanger convenient to connect - Google Patents

Abstract

The utility model discloses an oil pipe hanger convenient to connect, including oil pipe head, hanger body, jackscrew assembly and rubber packing ring, the inside shoulder hole of having seted up of oil pipe head, and the unsettled hanger body that is provided with of shoulder hole inside, hanger body middle part is provided with the shaft shoulder, and the hanger body outside from top to bottom in proper order the cover be equipped with clamping ring and lower clamping ring, the oil pipe head outside runs through and installs a plurality of jackscrew assemblies, and the oil pipe head outside rotates and installs the runner, runner one side is connected with the jackscrew assembly through connecting gear. This oil pipe hanger convenient to connect is provided with bulge loop and rubber packing ring, and rubber packing ring inner circle is greater than its middle thickness with outer lane thickness, and when two bulge loops pressurized the rubber packing ring from top to bottom respectively, its deformation volume was compared traditional sealing washer bigger, consequently required lowly to the assembly clearance of rubber packing ring and oil pipe head inner wall, has reduced the installation degree of difficulty of this hanger body then, and it is more convenient to use.

Description

Oil pipe hanger convenient to connect

Technical Field

The utility model relates to a tubing hanger technical field specifically is a tubing hanger convenient to connect.

Background

The tubing hanger is mainly used for sealing an annular space between an oil pipe and a casing, and the sealing effect of the tubing hanger directly influences the operating efficiency of an oil well.

In order to improve the sealing effect of the existing oil pipe hanger, the assembly gap between a rubber gasket sleeved on the surface of the existing oil pipe hanger and an oil pipe head is usually small, so that the oil pipe hanger is difficult to install, the problems of scratching of the rubber gasket and the like are easily caused in the assembly process, the existing oil pipe hanger is usually extruded and fixed by a plurality of independent jackscrew assemblies, and when the jackscrew assemblies extrude the oil pipe hanger independently, the stress of a hanger body is unbalanced, so that the hanger body generates an eccentric shaft, the gap between the annular rubber gasket and the oil pipe head cannot be uniformly sealed, the sealing effect of the oil pipe hanger is reduced, and the existing equipment needs to be improved aiming at the problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an oil pipe hanger convenient to connect to solve the current oil pipe hanger that proposes in the above-mentioned background art and in order to improve sealed effect, the assembly gap between the rubber packing ring of its surface suit and the oil pipe head is less usually, lead to this oil pipe hanger installation difficulty scheduling problem, and current oil pipe hanger relies on a plurality of independent jackscrew assemblies extrusion fixed usually, make the hanger body take place the off-axis, the sealed effect problem of this oil pipe hanger has been reduced.

In order to achieve the above object, the utility model provides a following technical scheme: an oil pipe hanger convenient to connect comprises an oil pipe head, a hanger body, a jackscrew assembly and a rubber gasket, wherein a stepped hole is formed in the oil pipe head, the hanger body is arranged in the stepped hole in a hanging manner, a shaft shoulder is arranged in the middle of the hanger body, and an upper compression ring and a lower compression ring are sequentially sleeved on the outer side of the hanger body from top to bottom;

a plurality of jackscrew assemblies are installed on the outer side of the tubing head in a penetrating mode, a rotating wheel is installed on the outer side of the tubing head in a rotating mode, one side of the rotating wheel is connected with the jackscrew assemblies through a connecting gear, and one end of the connecting gear is connected with the tubing head in a rotating mode.

Preferably, a grease injection hole is formed in one side of the oil pipe head, a control valve is mounted in the grease injection hole, a shunt ring is formed in the middle of the shaft shoulder, and the shunt ring is communicated with the grease injection hole;

by adopting the technical scheme, the external lubricating grease enters the shunt ring through the grease injection hole after being pressurized, and then the lubricating grease uniformly flows into the vicinity of the rubber gasket from the gap between the oil pipe head and the shaft shoulder, so that the rubber gasket is protected, and the service life of the rubber gasket is prolonged.

Preferably, the hanger body is provided with a limiting pin in a next threaded manner, and the installation depth of the limiting pin is greater than the size of the limiting pin;

through adopting above-mentioned technical scheme, rotate the spacer pin and bury inside the hanger body, be convenient for from hanger downside suit push-down ring and rubber packing ring.

Preferably, rubber gaskets are arranged between the upper compression ring and the shaft shoulder and between the lower compression ring and the shaft shoulder, and convex rings are fixed at one ends of the upper compression ring, the shaft shoulder and the lower compression ring, which are close to the rubber gaskets, and the outer ends of the convex rings are attached to the rubber gaskets;

by adopting the technical scheme, the upper pressing ring and the shaft shoulder as well as the lower pressing ring and the shaft shoulder are matched to extrude the two rubber gaskets, so that the rubber gaskets are attached to the inner wall of the oil pipe head and the surface of the shaft shoulder hanger body, and the sealing effect is improved.

Preferably, the taper of one end of the jackscrew assembly is the same as the gradient of the upper compression ring, and one end of the lower compression ring, which is far away from the rubber gasket, is attached to the inner wall of the stepped hole;

through adopting above-mentioned technical scheme, rotating the jackscrew assembly, the jackscrew assembly of being convenient for promotes the decline of last clamping ring, and the lower clamping ring of going up the clamping ring below pastes tight shoulder hole inner wall simultaneously.

Preferably, the number of the jackscrew assemblies and the number of the connecting gears are four, and the four jackscrew assemblies and the four connecting gears are arranged in a cross shape by taking the center line of the rotating wheel as the center;

by adopting the technical scheme, the rotating wheel is rotated, and the rotating wheel simultaneously drives the four jackscrew assemblies to rotate through the connecting gear, so that the four jackscrew assemblies synchronously push the upper compression ring to move downwards.

Compared with the prior art, the beneficial effects of the utility model are that: the oil pipe hanger convenient for connection is provided with a hanging ring,

(1) The hanger is provided with the convex rings and the rubber gaskets, the thickness of the inner ring and the outer ring of each rubber gasket is larger than that of the middle of each rubber gasket, and when the rubber gaskets are respectively pressed from the upper part and the lower part of each convex ring, the deformation amount of each convex ring is larger than that of the traditional sealing ring, so that the requirement on the assembly clearance between the rubber gaskets and the inner wall of the tubing head is low, the mounting difficulty of the hanger body is reduced, and the hanger is more convenient and faster to use;

(2) The rotary wheel and the connecting gears are arranged and rotate, the rotary wheel drives all the connecting gears to rotate, meanwhile, the connecting gears drive the corresponding jackscrew assemblies to rotate, and all the jackscrew assemblies simultaneously extend into the stepped holes and extrude the upper compression ring, so that the upper compression ring and the rubber gasket below the upper compression ring are stressed more uniformly, and the sealing effect is improved;

(3) Be provided with and annotate fat hole and splitter ring, annotate fat equipment and annotate fat hole intercommunication, outside lubricating grease is through annotating the fat hole and flow into the splitter ring, and lubricating grease is smeared on rubber packing ring surface through the even dispersion of splitter ring and through the clearance between shoulder inner wall and the shaft shoulder surface afterwards, has played the effect of protection rubber packing ring, has prolonged rubber packing ring's life.

Drawings

FIG. 1 is a schematic view of the cross-sectional structure of the present invention;

FIG. 2 is a schematic top view of the cross-sectional structure of the present invention;

FIG. 3 is a schematic view of the top cross-sectional structure of the tubing head of the present invention;

fig. 4 is a schematic diagram of the three-dimensional explosion structure of the present invention.

In the figure: 1. the oil pipe comprises an oil pipe head, 2, a stepped hole, 3, a hanger body, 4, a shaft shoulder, 5, an upper pressing ring, 6, a lower pressing ring, 7, a jackscrew assembly, 8, a rotating wheel, 9, a connecting gear, 10, a limiting pin, 11, a grease injection hole, 12, a control valve, 13, a shunt ring, 14, a rubber gasket, 15 and a convex ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides an oil pipe hanger convenient to connect, as shown in fig. 1 and 2, shoulder hole 2 has been seted up to 1 inside of oil pipe head, and 2 inside unsettled hanger bodies 3 that are provided with of shoulder hole, annotate fat hole 11 has been seted up to 1 one side of oil pipe head, and annotate fat hole 11 internally mounted has control valve 12, diverter ring 13 has been seted up at shaft shoulder 4 middle part, and diverter ring 13 is linked together with annotating fat hole 11, the outside notes fat equipment with annotate fat hole 11 intercommunication, open control valve 12, the outside notes fat equipment of being convenient for pours into grease into lubricating grease into to diverter ring 13 through annotating fat hole 11.

As shown in fig. 1 and 4, a shaft shoulder 4 is arranged in the middle of the hanger body 3, an upper pressing ring 5 and a lower pressing ring 6 are sequentially sleeved on the outer side of the hanger body 3 from top to bottom, a limit pin 10 is installed on the hanger body 3 through next threads, the installation depth of the limit pin 10 is larger than the size of the limit pin 10, the limit pin 10 is rotated, the limit pin 10 is completely embedded into the hanger body 3, and the lower pressing ring 6 and the corresponding rubber gasket 14 are conveniently sleeved on the lower side of the hanger body 3.

In further embodiment, all be provided with rubber packing ring 14 between last clamping ring 5 and the shaft shoulder 4 and between lower clamping ring 6 and the shaft shoulder 4, and go up clamping ring 5, shaft shoulder 4 and the one end that lower clamping ring 6 is close to rubber packing ring 14 all are fixed with bulge loop 15, 15 outer ends laminating rubber packing ring 14 of bulge loop set up simultaneously, when jackscrew assembly 7 extrudes last clamping ring 5, lower clamping ring 6, shaft shoulder 4 and two rubber packing ring 14 all are promoted and move down, in the time, clamping ring 5, two rubber packing ring 14 are extruded respectively to a plurality of bulge loops 15 on lower clamping ring 6 and the shaft shoulder 4, and make rubber packing ring 14 take place deformation laminating 2 inner walls of shoulder hole and 3 surfaces of hanger body.

As shown in fig. 1 and 3, a plurality of jackscrew assemblies 7 are installed on the outer side of the tubing head 1 in a penetrating manner, a rotating wheel 8 is installed on the outer side of the tubing head 1 in a rotating manner, the taper of one end of each jackscrew assembly 7 is the same as the gradient of the upper press ring 5, one end, far away from the rubber gasket 14, of the lower press ring 6 is attached to the inner wall of the stepped hole 2, the jackscrew assemblies 7 move to push the upper press ring 5 to move downwards, and meanwhile the lower press ring 6 below the upper press ring 5 is attached to the inner wall of the stepped hole 2 tightly under the action of pressure.

In a further embodiment, one side of the rotating wheel 8 is connected with the jackscrew assembly 7 through the connecting gear 9, one end of the connecting gear 9 is rotatably connected with the tubing head 1, four jackscrew assemblies 7 and four connecting gears 9 are arranged, the four jackscrew assemblies 7 and the four connecting gears 9 are arranged in a cross shape by taking the central line of the rotating wheel 8 as the center, the rotating wheel 8 is rotated, and the rotating wheel 8 drives the four corresponding jackscrew assemblies 7 to rotate along with the rotating wheel 8 through the four connecting gears 9, so that the four jackscrew assemblies 7 simultaneously extrude and push the upper compression ring 5 to move downwards.

During the use, rubber packing ring 14 and last clamping ring 5 suit in proper order in the upside of hanger body 3, rotate spacer pin 10, make spacer pin 10 bury inside hanger body 3, suit another rubber packing ring 14 and lower clamping ring 6 in proper order in the downside of hanger body 3, the spacer pin 10 of antiport, it deviates from hanger body 3 to avoid clamping ring 6 to slide down, put hanger body 3 inside shoulder hole 2, restrict hanger body 3 position through the cooperation of lower clamping ring 6 and shoulder 4, rotate runner 8, runner 8 drives four jackscrew assemblies 7 that correspond through four connecting gear 9 and rotates, four jackscrew assemblies 7 stretch into inside shoulder hole 2 and extrude last clamping ring 5 simultaneously, go up clamping ring 5 under the effect of pressure, two rubber packing ring 14, shoulder 4 and lower shoulder 6 are all promoted to move down, go up clamping ring 5 simultaneously, shoulder 4 and protruding ring 15 on lower shoulder 6 cooperate extrusion rubber packing ring 14, make rubber packing ring 14 take place to deform and paste tight clamping ring hole 2 inner wall and hanger body 3 surface, outside notes fat equipment and the control valve 12, open the even branch flow distribution of fat injection in this field of this technical description of the well-known fat injection in-packed expert among the clamping ring 2, it describes to pass through this technical description of this expert's even grease injection after-up grease injection 12.

The terms "central," "longitudinal," "lateral," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like refer to orientations or positional relationships illustrated in the drawings, and are used merely to simplify the description of the present disclosure, rather than to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the scope of the present disclosure.

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 or portions thereof without departing from the spirit and scope of the invention.

Claims (6)

1. The utility model provides an oil pipe hanger convenient to connect, includes oil pipe head (1), hanger body (3), jackscrew assembly (7) and rubber packing ring (14), its characterized in that: a stepped hole (2) is formed in the tubing head (1), a hanger body (3) is arranged in the stepped hole (2) in a hanging mode, a shaft shoulder (4) is arranged in the middle of the hanger body (3), and an upper pressing ring (5) and a lower pressing ring (6) are sequentially sleeved on the outer side of the hanger body (3) from top to bottom;

a plurality of jackscrew assemblies (7) are installed in the tubing head (1) outside through running through, and the rotation of tubing head (1) outside installs runner (8), runner (8) one side is connected with jackscrew assembly (7) through connecting gear (9), and connecting gear (9) one end is connected with tubing head (1) rotation.

2. A connection facilitating tubing hanger according to claim 1, wherein: grease injection holes (11) are formed in one side of the oil pipe head (1), control valves (12) are installed inside the grease injection holes (11), a shunt ring (13) is formed in the middle of the shaft shoulder (4), and the shunt ring (13) is communicated with the grease injection holes (11).

3. A tubing hanger for facilitating connection according to claim 1, wherein: the hanger body (3) is provided with a limiting pin (10) in a threaded mode next time, and the installation depth of the limiting pin (10) is larger than the size of the limiting pin (10).

4. A tubing hanger for facilitating connection according to claim 1, wherein: go up between clamping ring (5) and shaft shoulder (4) and all be provided with rubber packing ring (14) between clamping ring (6) and shaft shoulder (4) down, and go up clamping ring (5), shaft shoulder (4) and down one end that clamping ring (6) are close to rubber packing ring (14) all be fixed with bulge loop (15), bulge loop (15) outer end laminating rubber packing ring (14) setting simultaneously.

5. A connection facilitating tubing hanger according to claim 1, wherein: the taper of one end of the jackscrew assembly (7) is the same as the gradient of the upper press ring (5), and one end of the lower press ring (6) far away from the rubber gasket (14) is attached to the inner wall of the stepped hole (2).

6. A tubing hanger for facilitating connection according to claim 1, wherein: the four jackscrew assemblies (7) and the four connecting gears (9) are arranged in a cross manner, and the four jackscrew assemblies (7) and the four connecting gears (9) are arranged in a cross manner by taking the center line of the rotating wheel (8) as the center.

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