CN212986339U

CN212986339U - High-strength oil well pipe joint structure

Info

Publication number: CN212986339U
Application number: CN202020826363.1U
Authority: CN
Inventors: 杨定金; 黄爱翠
Original assignee: Yancheng Yandu Longgang Fenghuang Petroleum Machinery Factory
Current assignee: Yancheng Yandu Longgang Fenghuang Petroleum Machinery Factory
Priority date: 2020-05-18
Filing date: 2020-05-18
Publication date: 2021-04-16
Anticipated expiration: 2030-05-18

Abstract

The utility model discloses a high strength oil well pipe joint structure relates to oil well pipe joint technical field, specifically is a high strength oil well pipe joint structure, including the lower plate, the back at lower plate top articulates there is the lower plate, the lower plate has sealing rubber pad with the equal movable mounting in the inside left side of punch holder, the bottom of lower plate and the equal fixed mounting in top of punch holder have the engaging lug. This high strength oil well pipe joint structure, inside lower plate and the punch holder through advancing the oil well pipe card left and right sides, through screw rod to lower plate and punch holder fixed connection, and carry out fixed connection through engaging lug and connecting screw to the lower plate and the punch holder of the left and right sides, install sealing rubber pad and anti-skidding line additional in the inside of lower plate and punch holder, and make anti-skidding line and oil well pipe in close contact with, thereby fix the oil well pipe of lower plate and punch holder inside, the intensity of the device when connecting the oil well pipe has been improved.

Description

High-strength oil well pipe joint structure

Technical Field

The utility model relates to an oil well pipe joint technical field specifically is a high strength oil well pipe joint structure.

Background

An oil well pipe, also called a special oil pipe, is a foundation of the oil industry, and a casing, an oil pipe and a drill string component (a drill pipe, a drill collar, a kelly, and the like) are collectively called an oil well pipe.

In the prior art, the clamp is additionally arranged outside two oil well pipes to connect the oil well pipes and is connected through the clamp, because the fixing effect of the clamp is limited, the two oil well pipes are easy to be disconnected in the subsequent use process, meanwhile, the oil well pipes are connected only through the clamp, the sealing performance cannot be guaranteed, and petroleum can be leaked in the petroleum transportation process.

SUMMERY OF THE UTILITY MODEL

The not enough to prior art, the utility model provides a high strength oil well tubular joint structure has advantages such as improve joint strength, improve the leakproofness, has solved the problem that proposes in the above-mentioned background art.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a high strength oil well casing joint structure, includes the lower plate, the back at lower plate top articulates there is the lower plate, the equal movable mounting in left side of lower plate and punch holder inside has sealing rubber pad, the bottom of lower plate and the equal fixed mounting in top of punch holder have the engaging lug, and the side screw thread of engaging lug has cup jointed connecting screw, anti-skidding line has all been seted up with the inside left side of punch holder to the lower plate, the fixed ear of mutually supporting is installed with the front fixed mounting of punch holder to the lower plate.

Preferably, the sealing strips are arranged on the front side and the rear side of the bottom of the upper clamping plate inner side sealing rubber pad, and the sealing groove matched with the sealing strips is formed in the top of the lower clamping plate inner side sealing rubber pad.

Preferably, the clamping strips which are uniformly distributed are arranged on the outer side of the sealing rubber gasket, sliding grooves which are matched with the clamping strips are formed in the inner sides of the lower clamping plate and the upper clamping plate which are arranged outside the sealing rubber gasket, and the end face of the sealing rubber gasket is located on the outer sides of the right ends of the lower clamping plate and the upper clamping plate.

Preferably, the antiskid lines are uniformly distributed on the left sides of the inner parts of the lower clamping plate and the upper clamping plate, and the inner diameter value of the sealing rubber pad is smaller than that of the antiskid lines.

Preferably, the number of lower plate, punch holder is two, and the inside of two lower plate, punch holder all adds and is equipped with sealing rubber pad, anti-skidding line, engaging lug, connecting screw.

The utility model provides a high strength oil well pipe joint structure possesses following beneficial effect:

1. this high strength oil well pipe joint structure, through lower plate and the punch holder inside with the oil well pipe card advances the left and right sides, through screw rod to lower plate and punch holder fixed connection, and carry out fixed connection through engaging lug and connecting screw to the lower plate and the punch holder of the left and right sides, install sealing rubber pad and anti-skidding line additional in the inside of lower plate and punch holder, and make anti-skidding line and oil well pipe in close contact with, thereby fix the inside oil well pipe of lower plate and punch holder, the intensity of the device when connecting the oil well pipe has been improved, simultaneously behind lower plate and punch holder fixed connection, sealing rubber pad's medial surface and the outside close laminating of oil well pipe, frictional force between the device and the oil well pipe has been increased, prevent that the oil well pipe from droing, the joint strength has further been improved.

2. This high strength oil well pipe joint structure, when oil well pipe card advances lower plate and punch holder inside, rotate the punch holder, make the sealing strip card of the inboard sealing rubber pad bottom of punch holder advance in the seal groove at the inboard sealing rubber pad top of lower plate, and at the in-process of lower plate and punch holder locking gradually, it closely cooperates with the oil well pipe outside to seal inside the sealing rubber pad of messenger, the leakproofness of the device has been increased, in addition, the top of sealing rubber pad is located the outside on lower plate and punch holder top, lower plate to the left and right sides, during punch holder fixed connection, make the sealing rubber pad in close contact with of the left and right sides, along with the engaging lug locking gradually of both sides, make the sealing rubber pad of both sides closely laminate, further improve the leakproofness of the device.

Drawings

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

FIG. 2 is a schematic structural view of the interior of the lower and upper clamping plates of the present invention;

fig. 3 is a schematic structural diagram of the bottom of the sealing rubber pad of the present invention.

In the figure: 1. a lower splint; 2. an upper splint; 3. fixing the ear; 4. sealing the rubber pad; 5. anti-skid lines; 6. connecting lugs; 7. connecting a screw rod; 8. and (6) clamping the strip.

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.

Referring to fig. 1 to 3, the present invention provides a technical solution: a high-strength oil well pipe joint structure comprises a lower clamp plate 1, wherein the back surface of the top of the lower clamp plate 1 is hinged with the lower clamp plate 1, sealing rubber pads 4 are movably mounted on the left sides of the inner sides of the lower clamp plate 1 and the upper clamp plate 2, sealing strips are respectively arranged on the front side and the rear side of the bottom of the sealing rubber pad 4 on the inner side of the upper clamp plate 2, a sealing groove matched with the sealing strips is formed in the top of the sealing rubber pad 4 on the inner side of the lower clamp plate 1, when the lower clamp plate 1 and the upper clamp plate 2 are closed, the sealing strips at the bottom of the sealing rubber pad 4 on the inner side of the upper clamp plate 2 are clamped into the sealing groove at the top of the sealing rubber pad 4 on the lower side, and when the lower clamp plate 1 and the upper clamp plate 2 are locked, the sealing strips are tightly matched with the sealing groove, the sealing performance of the device is improved, the end face of the sealing rubber pad 4 is positioned at the outer side of the right end of the lower clamping plate 1 and the upper clamping plate 2, the bottom of the sealing rubber pad 4 is provided with clamping strips 8 which are uniformly distributed, the sealing rubber pad 4 is clamped into the lower clamping plate 1 and the upper clamping plate 2 through the clamping strips 8 at the bottom of the sealing rubber pad 4, after the lower clamping plate 1 and the upper clamping plate 2 are locked, the inner wall of the sealing rubber pad 4 inside the lower clamping plate 1 and the upper clamping plate 2 is tightly attached to the outside of the oil well pipe, the friction force between the device and the oil well pipe is increased, the strength of the device when the oil well pipe is connected is improved, in addition, the end face of the sealing rubber pad 4 is positioned at the outer side of the right end of the lower clamping plate 1 and the upper clamping plate 2, when the lower clamping plate 1 and the upper clamping plate 2 at the left side and the right side are locked, the top ends of the sealing, the bottom of the lower clamp plate 1 and the top of the upper clamp plate 2 are fixedly provided with connecting lugs 6, the side surfaces of the connecting lugs 6 are in threaded sleeve connection with connecting screw rods 7, the left sides of the inner parts of the lower clamp plate 1 and the upper clamp plate 2 are both provided with anti-skidding threads 5, the front surfaces of the lower clamp plate 1 and the upper clamp plate 2 are fixedly provided with fixing lugs 3 which are matched with each other, the anti-skidding threads 5 are uniformly distributed on the left sides of the inner parts of the lower clamp plate 1 and the upper clamp plate 2, the inner diameter value of the sealing rubber gasket 4 is smaller than that of the anti-skidding threads 5, after the lower clamp plate 1 and the upper clamp plate 2 are locked, the anti-skidding threads 5 in the inner parts of the lower clamp plate 1 and the upper clamp plate 2 are tightly attached to the outer part of the oil well pipe, the strength of the device is improved when the oil well pipe is connected, in addition, the inner diameter value of the sealing rubber gasket 4 is smaller than that of, prevent that anti-skidding line 5 from influencing sealing rubber pad 4, sealing rubber pad 4's validity has been guaranteed, lower plate 1, the quantity of punch holder 2 is two, and two lower plate 1, punch holder 2's inside all adds and is equipped with sealing rubber pad 4, anti-skidding line 5, engaging lug 6, connecting screw 7, lower plate 1 in the left and right sides, punch holder 2 card is when the oil well pipe is outside, through engaging lug 6, connecting screw 7 carries out fixed connection to the lower plate 1 of the left and right sides, punch holder 2, carry out fixed connection to two sections oil well pipes, the validity of the device has been guaranteed.

In conclusion, this high strength oil well pipe joint structure, during the use, with the device card outside the oil well pipe at both ends, and make two oil well pipe tops laminate, rotate the punch holder 2 of the left and right sides, make the sealing strip card of the inboard sealing rubber pad 4 bottom of punch holder 2 go into the inside of the seal groove at below sealing rubber pad 4 top, fix the ear 3 of fixing on the side of punch holder 1 and punch holder 2 through the screw in advance, through connecting screw 7 with the left and right sides punch holder 1, the engaging lug 6 of punch holder 2 outside locks, after the engaging lug 6 of the left and right sides locks, through the screw with the fixing ear 3 of punch holder 2 side locking, make punch holder 1 and the inside anti-skidding line 5 of punch holder 2, sealing rubber pad 4 hug closely the oil well pipe outside, can.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a high strength oil well tubular joint structure, includes lower plate (1), its characterized in that: the back at lower plate (1) top articulates there is lower plate (1), lower plate (1) and the equal movable mounting in left side of punch holder (2) inside have sealing rubber pad (4), the bottom of lower plate (1) and the equal fixed mounting in top of punch holder (2) have engaging lug (6), and the side screw thread of engaging lug (6) has cup jointed connecting screw (7), antiskid line (5) have all been seted up in the left side of lower plate (1) and punch holder (2) inside, the fixed ear (3) of mutually supporting are installed to the front fixed mounting of lower plate (1) and punch holder (2).

2. The high-strength oil country tubular good joint structure according to claim 1, wherein: sealing strips are arranged on the front side and the rear side of the bottom of the inner side sealing rubber pad (4) of the upper clamping plate (2), and sealing grooves matched with the sealing strips are arranged at the top of the inner side sealing rubber pad (4) of the lower clamping plate (1).

3. The high-strength oil country tubular good joint structure according to claim 1, wherein: evenly distributed's card strip (8) are seted up in the outside of sealing rubber pad (4), the spout of mutually supporting with card strip (8) is seted up in the inboard of sealing rubber pad (4) outside lower plate (1) and punch holder (2), the terminal surface of sealing rubber pad (4) is located the outside of lower plate (1) and punch holder (2) right-hand member.

4. The high-strength oil country tubular good joint structure according to claim 1, wherein: antiskid line (5) evenly distributed in the inside left side of lower plate (1) and punch holder (2), the internal diameter value of sealing rubber pad (4) is less than the internal diameter value of antiskid line (5).

5. The high-strength oil country tubular good joint structure according to claim 1, wherein: the number of the lower clamping plates (1) and the upper clamping plates (2) is two, and sealing rubber pads (4), anti-skidding lines (5), connecting lugs (6) and connecting screw rods (7) are additionally arranged in the two lower clamping plates (1) and the upper clamping plates (2).