CN212249935U

CN212249935U - Make things convenient for interior preventer of dismouting

Info

Publication number: CN212249935U
Application number: CN202020822010.4U
Authority: CN
Inventors: 吴丽娟; 张志斌; 杜野; 徐萌; 韩靖; 许岩峰; 金贵全; 陈大伟
Original assignee: HEILONGJIANG NORTH SHUANGJIA DRILLING TOOLS CO Ltd
Current assignee: HEILONGJIANG NORTH SHUANGJIA DRILLING TOOLS CO Ltd
Priority date: 2020-05-18
Filing date: 2020-05-18
Publication date: 2020-12-29
Anticipated expiration: 2030-05-18

Abstract

The utility model discloses a make things convenient for interior preventer of dismouting, including lower casing, the release tool body and release lever, casing top is provided with the casing down, and goes up the casing and be provided with first sealing washer down between the casing, it is provided with first engaging lug to go up the casing lateral wall, first bolt lower extreme runs through first engaging lug and second engaging lug threaded connection has first nut, release tool body lower extreme contacts with last casing, and is provided with the second sealing washer between the release tool body and the last casing, the specific lateral wall of release tool is provided with the third engaging lug, the release lever lower extreme runs through release tool body upper surface and is provided with the case, and the lower extreme of case is provided with the spring. This make things convenient for interior preventer of dismouting, casing and last casing contact department set up to the conical surface down, and the casing overlaps in the last casing outside down, utilizes first bolt to run through first engaging lug and the first nut of second engaging lug threaded connection, and it is fixed to last casing and lower casing connection, and convenient the dismantlement is to its inside maintenance.

Description

Make things convenient for interior preventer of dismouting

Technical Field

The utility model relates to an interior preventer technical field specifically is an interior preventer of convenient dismouting.

Background

The inner blowout preventer is a one-way valve with large pressure drop, can be connected with a drill stem, can protect a water faucet, a water hose and a vertical pipe, and can be used for preventing high-pressure blowout before a high-pressure pump.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a make things convenient for interior preventer of dismouting to the maintenance is not convenient for dismantle to the current interior preventer that proposes in solving above-mentioned background art, is provided with the dedicated release tool body on the interior preventer, and threaded connection installs between the common interior preventer and the release tool body, prevents for a long time that the use is accelerated the wearing and tearing of its threaded connection department easily, reduces life's problem.

In order to achieve the above object, the utility model provides a following technical scheme: an internal blowout preventer convenient to disassemble and assemble comprises a lower shell, a releasing tool body and a releasing rod, wherein an upper shell is arranged above the lower shell, a first sealing ring is arranged between the upper shell and the lower shell, a first connecting lug is arranged on the side wall of the upper shell, a first bolt is arranged on the first connecting lug, the lower end of the first bolt penetrates through the first connecting lug and is in threaded connection with a first nut, a second connecting lug is arranged on the side wall of the lower shell, the lower end of the releasing tool body is in contact with the upper shell, a second sealing ring is arranged between the releasing tool body and the upper shell, a third connecting lug is arranged on the side wall of the releasing tool body, a second bolt is arranged on the third connecting lug, the lower end of the second bolt penetrates through the third connecting lug and is in threaded connection with a second nut, and a fourth connecting lug is arranged on the side wall of the upper shell, the lower end of the release rod penetrates through the upper surface of the release tool body to be provided with a valve core, the lower end of the valve core is provided with a spring, and the spring is arranged on the inner side wall of the lower shell.

It has the second engaging lug to be the annular array form distribution on the casing down, and second engaging lug, first bolt and first nut present the one-to-one relation, go up the casing including the third sealing washer, and the third sealing washer sets up on the inside wall of last casing, it has the third engaging lug to be the annular array form distribution on the release tool body, and third engaging lug, second bolt, fourth engaging lug and second nut present the one-to-one relation, the release tool body is including fastening screw, and threaded connection has fastening screw on the release tool body, the release lever is including the fixed orifices, and the fixed orifices setting is on the release lever.

Compared with the prior art, the beneficial effects of the utility model are that: the inner blowout preventer convenient to disassemble and assemble is provided with a plurality of annular grooves,

(1) the contact part of the lower shell and the upper shell is a conical surface, the lower shell is sleeved outside the upper shell, meanwhile, a first bolt penetrates through the first connecting lug and the second connecting lug to be in threaded connection with a first nut, the upper shell and the lower shell are connected and fixed, the inner maintenance of the upper shell and the lower shell is convenient to disassemble, and in addition, a third sealing ring is arranged in the upper shell, so that the sealing effect when the valve core is closed can be enhanced;

(2) go up the casing and release the tool body contact department and also set up to the conical surface, will go up the casing cover in the release tool body outside, utilize the second bolt to run through third engaging lug and fourth engaging lug threaded connection second nut, to last casing and release tool body fixed connection, compare in the original mode of going up threaded connection between casing and the release tool body, reducible threaded connection department wearing and tearing lock the release lever through fastening screw.

Drawings

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

FIG. 2 is an enlarged schematic view of the structure of FIG. 1 at C according to the present invention;

FIG. 3 is an enlarged schematic view of the structure of FIG. 1 at B according to the present invention;

fig. 4 is an enlarged schematic structural view of a portion a in fig. 1 according to the present invention.

In the figure: 1. the lower shell, 2, the upper shell, 201, the third sealing washer, 3, the first sealing washer, 4, first engaging lug, 5, first bolt, 6, the second engaging lug, 7, the first nut, 8, the release tool body, 801, the fastening screw, 9, the second sealing washer, 10, the third engaging lug, 11, the second bolt, 12, the fourth engaging lug, 13, the second nut, 14, the release lever, 1401, the fixed orifices, 15, the case, 16, the spring.

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: an inner blowout preventer convenient to disassemble and assemble is characterized in that an upper shell 2 is arranged above a lower shell 1, a first sealing ring 3 is arranged between the upper shell 2 and the lower shell 1, a first connecting lug 4 is arranged on the side wall of the upper shell 2, a first bolt 5 is arranged on the first connecting lug 4, the lower end of the first bolt 5 penetrates through the first connecting lug 4 and a second connecting lug 6 to be connected with a first nut 7 in a threaded manner, a second connecting lug 6 is arranged on the side wall of the lower shell 1, the lower end of a releasing tool body 8 is in contact with the upper shell 2, a second sealing ring 9 is arranged between the releasing tool body 8 and the upper shell 2, a third connecting lug 10 is arranged on the side wall of the releasing tool body 8, a second bolt 11 is arranged on the third connecting lug 10, the lower end of the second bolt 11 penetrates through the third connecting lug 10 and a fourth connecting lug 12 to be connected with a second nut 13 in a threaded manner, and the fourth connecting lug 12 is arranged on the side wall, the lower end of the release rod 14 is provided with a valve core 15 penetrating through the upper surface of the release tool body 8, the lower end of the valve core 15 is provided with a spring 16, and the spring 16 is arranged on the inner side wall of the lower shell 1.

Specifically, it has second engaging lug 6 to be annular array form distribution on the casing 1 down, and second engaging lug 6, first engaging lug 4, first bolt 5 and first nut 7 present the one-to-one correspondence, runs through first engaging lug 4 and 6 threaded connection of second engaging lug and fix it on first nut 7 through first bolt 5 between casing 1 and the last casing 2 down, and the convenient dismantlement is maintained.

Specifically, the upper housing 2 includes a third sealing ring 201, and the third sealing ring 201 is disposed on the inner side wall of the upper housing 2, and the third sealing ring 201 enhances the sealing effect when the valve element 15 is closed.

Specifically, it has third engaging lug 10 to be the annular array form distribution on the release tool body 8, and third engaging lug 10, second bolt 11, fourth engaging lug 12 and second nut 13 present the one-to-one correspondence, runs through third engaging lug 10, fourth engaging lug 12 threaded connection second nut 13 and last casing 2 through second bolt 11 between the release tool body 8 and is connected, avoids threaded connection's between the former mode, prevents spouting for a long time and accelerates the wearing and tearing of its threaded connection department.

Specifically, the releasing tool body 8 includes a fastening screw 801, and the fastening screw 801 is screwed on the releasing tool body 8, and the fastening screw 801 may be used to lock the releasing lever 14.

Specifically, the release lever 14 comprises a fixing hole 1401, and the fixing hole 1401 is arranged on the release lever 14, and the fixing hole 1401 is matched and connected with the fastening screw 801 to facilitate the position fixing of the release lever 14.

The working principle is as follows: when the inner blowout preventer convenient to assemble and disassemble is used, the release rod 14 is used for pressing the valve core 15 to compress the spring 16, the valve core 15 and the third sealing ring 201 in the upper shell 2 are separated from contact, the fastening screw 801 is screwed to extend into the fixing hole 1401 to lock the release rod 14, the inner blowout preventer is in a normally open standby state at the moment, when well mud or oil flows out from an disassembled drill rod joint when a kick is induced, the inner blowout preventer is quickly connected to a drill rod, the inner blowout preventer is in an open state, the well mud or oil can flow out through the inner blowout preventer, the inner blowout preventer is easily connected to the drill rod, the fastening screw 801 is opened, the release rod 14 has no action on the valve core 15, the valve core 15 rises under the action of the mud or oil to close the blowout preventer, the third sealing ring 201 enhances the sealing effect at the valve core 15, the first sealing ring 3 enhances the sealing effect at the joint of the upper shell 2 and the lower shell 1, and the second sealing ring 9 enhances, the removal of the first bolt 5 facilitates servicing of the interior of the blowout preventer, and what is not described in detail in this specification is well within the skill of those skilled in the art.

The terms "central," "longitudinal," "lateral," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for ease of description, but are not intended 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 considered limiting of the scope of the invention.

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

1. The utility model provides a make things convenient for interior preventer of dismouting, includes lower casing (1), release tool body (8) and release lever (14), its characterized in that: lower casing (1) top is provided with casing (2), and is provided with first sealing washer (3) between last casing (2) and lower casing (1), it is provided with first engaging lug (4) to go up casing (2) lateral wall, and is provided with first bolt (5) on first engaging lug (4), first bolt (5) lower extreme runs through first engaging lug (4) and second engaging lug (6) threaded connection has first nut (7), and second engaging lug (6) set up under on the lateral wall of casing (1), release tool body (8) lower extreme contacts with last casing (2), and is provided with second sealing washer (9) between release tool body (8) and last casing (2), the lateral wall of release tool body (8) is provided with third engaging lug (10), and is provided with second bolt (11) on third engaging lug (10), the lower extreme of second bolt (11) runs through third engaging lug (10) and fourth engaging lug (12) screw thread The second nut (13) is connected, the fourth connecting lug (12) is arranged on the side wall of the upper shell (2), the lower end of the release rod (14) penetrates through the upper surface of the release tool body (8) and is provided with a valve core (15), the lower end of the valve core (15) is provided with a spring (16), and the spring (16) is arranged on the inner side wall of the lower shell (1).

2. The internal blow out preventer of claim 1, wherein: second connection lugs (6) are distributed on the lower shell (1) in an annular array shape, and the second connection lugs (6), the first connection lugs (4), the first bolts (5) and the first nuts (7) are in one-to-one correspondence.

3. The internal blow out preventer of claim 1, wherein: go up casing (2) including third sealing washer (201), and third sealing washer (201) set up on the inside wall of last casing (2).

4. The internal blow out preventer of claim 1, wherein: third connection lugs (10) are distributed on the releasing tool body (8) in an annular array shape, and the third connection lugs (10), the second bolts (11), the fourth connection lugs (12) and the second nuts (13) are in one-to-one correspondence.

5. The internal blow out preventer of claim 1, wherein: the releasing tool body (8) comprises a fastening screw (801), and the fastening screw (801) is connected to the releasing tool body (8) in a threaded mode.

6. The internal blow out preventer of claim 1, wherein: the release lever (14) comprises a fixing hole (1401), and the fixing hole (1401) is arranged on the release lever (14).