CN215292424U

CN215292424U - Petroleum lubricator connecting device

Info

Publication number: CN215292424U
Application number: CN202121385150.0U
Authority: CN
Inventors: 卢清华
Original assignee: Hubei Shile Petroleum Machinery Co ltd
Current assignee: Hubei Shile Petroleum Machinery Co ltd
Priority date: 2021-06-22
Filing date: 2021-06-22
Publication date: 2021-12-24
Anticipated expiration: 2031-06-22

Abstract

The utility model belongs to the petroleum machinery field specifically is a petroleum lubricator connecting device, include: the top of the top cover is provided with an air vent, and a ball cavity is formed inside the top cover; the rubber core is arranged in the spherical cavity, the shell is arranged below the top cover, the annular cavity is arranged on the inner side of the shell, the piston is arranged in the annular cavity, the lower end of the shell is provided with a communicating pipe, the shell is also provided with an adjusting surface, the adjusting surface is provided with a push rod, the middle part of the push rod is in threaded connection with the shell, and the upper end of the push rod is in rotary connection with the bottom of the annular piston; the utility model solves the problems of high cost, complex structure, high installation requirement and high working condition of the hydraulic system drive in the prior art; the utility model has simple structure and convenient operation; a mechanical driving mode is adopted, so that a stable working effect is achieved; the circular arc surface of the annular rubber enables the rubber core to form a funnel effect when being closed under the extrusion of the piston, and the funnel effect is beneficial to playing a guiding role for a drill rod in the rubber core.

Description

Petroleum lubricator connecting device

Technical Field

The utility model relates to the field of petroleum machinery, specifically a petroleum lubricator connecting device.

Background

In the process of oil exploitation, well blowout and other situations often occur, fire disasters and even explosions can be caused in severe cases, in order to prevent safety accidents of the type, an annular blowout preventer is often used, in the annular blowout preventer in the prior art, a piston is driven by hydraulic oil to push a rubber core upwards, so that the rubber core is closed to achieve the aim of blowout prevention, and a hydraulic system is high in driving cost, complex in structure, high in installation requirements and high in working conditions; to solve the above problems, an oil lubricator connecting device is now proposed.

Disclosure of Invention

The utility model aims at solving the problem and providing a connecting device of an oil lubricator.

The utility model has the following concrete scheme: an oil lubricator connection comprising: the top of the top cover is provided with a vent, and a ball cavity is formed inside the top cover; the rubber core is arranged in the spherical cavity, the shell is arranged below the top cover, the annular cavity is arranged on the inner side of the shell, the piston is arranged in the annular cavity, the lower end of the shell is provided with a communicating pipe, the shell is further provided with an adjusting surface, the adjusting surface is provided with a push rod, the middle of the push rod is in threaded connection with the shell, and the upper end of the push rod is rotatably connected with the bottom of the annular piston.

The rubber core comprises annular rubber, wherein the inner side of the annular rubber is provided with an arc surface, a plurality of guide claws are uniformly arranged on the periphery of the annular rubber, the guide claws are made of spring steel, and the lower ends of the guide claws are embedded into the annular rubber and are integrated with the annular rubber; the upper end of the guide claw extends out of the annular rubber, and all the guide claws are connected with the spherical cavity in a sliding manner.

Furthermore, the lower end of the top cover is provided with a compression surface, a spring is arranged below the compression surface, and the lower end of the spring is connected with the piston and used for assisting the piston to reset.

Furthermore, guide posts are sleeved in all the springs, and the upper ends of the guide posts are fixedly connected with the compression surface of the top cover.

Further, the lower end of the push rod is provided with a handle, the handle takes the axis of the push rod as a rotation center, and the rotation radius of the handle is larger than the distance from the push rod to the communicating pipe, so that the handle is rotated to enable the push rod to ascend or descend.

Furthermore, sealing rings are arranged between the piston and the top cover as well as between the piston and the shell.

Further, the locking cover is sleeved between the top cover and the shell, the upper end of the locking cover is in threaded connection with the top cover through a bolt A, and the lower end of the locking cover is in threaded connection with the shell through a bolt B, so that the firmness of the upper shell is enhanced.

Furthermore, at least two connecting seats are arranged above the top cover, and connecting holes are formed in the connecting seats.

Further, the lower end of the communicating pipe is provided with pipe threads.

Further, the volume of the annular cavity is larger than that of the piston, and the surface of the annular cavity is coated with lubricating grease for assisting the piston to slide in the annular cavity.

The utility model discloses a theory of operation: in the process of oil exploitation, blowout phenomena occur, and other conditions that a well mouth needs to be opened or closed; when the rubber core needs to be sealed, the push rod is pushed upwards by rotating the handle, the piston is pushed up by the push rod, the piston extrudes the rubber core, the rubber core slides upwards in the spherical cavity, and at the moment, the annular rubber forms radial extrusion force and continuously extrudes towards the center until the rubber core is sealed; when the push-type button needs to be opened, the handle is rotated to enable the push rod to move downwards, and at the moment, the piston completes reset under the positive pressure of the spring; the rubber core is reset because the pressure of the piston is removed.

The utility model discloses following beneficial effect has: 1. the structure is simple, and the operation is convenient; 2. a mechanical driving mode is adopted, so that a stable working effect is achieved; 3. the circular arc surface of the annular rubber enables the rubber core to form a funnel effect when being closed under the extrusion of the piston, and the funnel effect is beneficial to playing a guiding role for a drill rod in the rubber core.

Drawings

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

FIG. 2 is an enlarged view of a portion J of FIG. 1;

FIG. 3 is an enlarged cross-sectional view of the glue core;

in the figure: 1-top cover, 101-compression surface, 2-shell, 3-vent, 4-ball cavity, 5-rubber core, 501-annular rubber, 502-arc surface, 503-guide claw, 6-piston, 7-communicating pipe, 8-push rod, 9-connecting seat, 10-connecting hole, 11-spring, 12-guide column, 13-sealing ring, 14-anti-loose cover, 15-bolt A, 16-bolt B, 17-handle, 18-pipe thread and 19-annular cavity.

Detailed Description

Referring to fig. 1-3, the present embodiment is an oil lubricator coupling device comprising: the top cover 1 is provided with a vent hole at the top and is communicated with the outside through a vent hole 3; the top cover 1 is internally provided with a spherical cavity 4, and the surface of the spherical cavity 4 is smooth; be equipped with gluey core 5 in the ball die cavity 4, 1 below of top cap is equipped with

casing

2, 2 inboards of casing are equipped with annular chamber 19, piston 6 is equipped with in the annular chamber 19, promotes gluey core 5 motion through

piston

6, 2 lower extremes of casing have communicating pipe 7, through the pipe connection of communicating pipe 7 with the below, still be equipped with the regulation face on the casing 2, be equipped with push rod 8 on the regulation face, 8 middle parts of push rod and 2 threaded connection of casing, 8 upper ends of push rod are rotated with 6 bottoms of annular piston and are connected.

Preferably, the rubber core 5 comprises an annular rubber 501, wherein an arc surface 502 is arranged on the inner side of the

annular rubber

501, 8 guide claws 503 are uniformly arranged on the periphery of the annular rubber 501, the guide claws 503 are made of 11 steel springs, and the lower ends of the guide claws 503 are embedded into the annular rubber 501 and are integrated with the annular rubber 501; the upper end of the annular rubber 501 extends out, all the guide claws 503 are connected with the spherical cavity 4 in a sliding way, the guide claws 503 play a role in guiding in the spherical cavity 4, and the rubber core 5 is automatically reset when the wellhead is conveniently opened.

Preferably, the lower end of the top cover 1 is provided with a compression surface 101, a spring 11 is arranged below the compression surface 101, and the lower end of the spring 11 is connected with the piston 6 for assisting the piston 6 to reset.

Preferably, all the springs 11 are internally provided with guide posts 12, and the upper ends of the guide posts 12 are fixedly connected with the compression surface 101 of the top cover 1 and used for controlling the movement direction of the springs 11.

Preferably, the lower end of the push rod 8 is provided with a handle 17, the handle 17 uses the axis of the push rod 8 as a rotation center, and the rotation radius of the handle 17 is larger than the distance from the push rod 8 to the communication pipe 7, so as to rotate the handle 17 to enable the push rod 8 to ascend or descend.

Preferably, a sealing ring 13 and a dust ring are arranged between the piston 6 and the top cover 1 and the shell 2, so as to prevent leakage and block dust.

Preferably, a locking cover 14 is sleeved between the top cover 1 and the casing 2, the section of the locking cover 14 is L-shaped, the upper end of the locking cover is in threaded connection with the top cover 1 by a bolt a15, and the lower end of the locking cover is in threaded connection with the casing 2 by a bolt B16, so as to enhance the firmness of the upper casing 2.

Preferably, top cap 1 top is equipped with two at least connecting seats 9, be equipped with connecting hole 10 on the connecting seat 9, be favorable to connecting through external equipment, transport and hoist and mount work.

Preferably, the lower end of the communicating pipe 7 is provided with a pipe thread 18 for connecting with a lower pipeline.

Preferably, the volume of the annular cavity 19 is larger than that of the piston 6, the two are in clearance fit, and the surface of the annular cavity 19 is coated with lubricating grease for assisting the piston 6 to slide in the annular cavity 19.

The foregoing is directed to the preferred embodiments of the present invention, and it will be understood by those skilled in the art that various changes and modifications may be made without departing from the principles of the invention, and that such changes and modifications are intended to be included within the scope of the invention.

Claims

1. An oil lubricator connection comprising: the top of the top cover is provided with a vent, and a ball cavity is formed inside the top cover; the spherical cavity is provided with a rubber core, the lower part of the top cover is provided with a shell, the inner side of the shell is provided with an annular cavity, a piston is arranged in the annular cavity, and the lower end of the shell is provided with a communicating pipe, which is characterized in that: the shell is further provided with an adjusting surface, a push rod is arranged on the adjusting surface, the middle of the push rod is in threaded connection with the shell, and the upper end of the push rod is rotatably connected with the bottom of the annular piston.

2. The petroleum lubricator attachment defined in claim 1, wherein: the rubber core comprises annular rubber, wherein the inner side of the annular rubber is provided with an arc surface, a plurality of guide claws are uniformly arranged around the annular rubber, the guide claws are made of spring steel, and the lower ends of the guide claws are embedded into the annular rubber and are integrated with the annular rubber; the upper end of the guide claw extends out of the annular rubber, and all the guide claws are connected with the spherical cavity in a sliding manner.

3. The petroleum lubricator attachment defined in claim 1, wherein: the lower end of the top cover is provided with a compression surface, a spring is arranged below the compression surface, and the lower end of the spring is connected with the piston and used for assisting the piston to reset.

4. A petroleum lubricator attachment according to claim 3, wherein: guide posts are sleeved in all the springs, and the upper ends of the guide posts are fixedly connected with the compression surface of the top cover.

5. The petroleum lubricator attachment defined in claim 1, wherein: the handle is arranged at the lower end of the push rod, the handle takes the axis of the push rod as a rotation center, and the rotation radius of the handle is larger than the distance from the push rod to the communicating pipe and is used for rotating the handle to enable the push rod to ascend or descend.

6. The petroleum lubricator attachment defined in claim 1, wherein: and sealing rings are arranged between the piston and the top cover as well as between the piston and the shell.

7. The petroleum lubricator attachment defined in claim 1, wherein: the anti-loosening cover is sleeved between the top cover and the shell, the upper end of the anti-loosening cover is in threaded connection with the top cover through a bolt A, and the lower end of the anti-loosening cover is in threaded connection with the shell through a bolt B and is used for enhancing the firmness of the upper shell.

8. The petroleum lubricator attachment defined in claim 1, wherein: at least two connecting seats are arranged above the top cover, and connecting holes are formed in the connecting seats.

9. The petroleum lubricator attachment defined in claim 1, wherein: and the lower end of the communicating pipe is provided with pipe threads.

10. The petroleum lubricator attachment defined in claim 1, wherein: the volume of the annular cavity is larger than that of the piston, and the surface of the annular cavity is coated with lubricating grease for assisting the piston to slide in the annular cavity.