CN210660992U - Double-end fastening bolt of blowout preventer - Google Patents
Double-end fastening bolt of blowout preventer Download PDFInfo
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- CN210660992U CN210660992U CN201921722218.2U CN201921722218U CN210660992U CN 210660992 U CN210660992 U CN 210660992U CN 201921722218 U CN201921722218 U CN 201921722218U CN 210660992 U CN210660992 U CN 210660992U
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- blowout preventer
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Abstract
The utility model discloses a preventer stud fastening bolt, which comprises a bolt, the diameter of bolt and the bolt groove phase-match setting of preventer, the bolt bottom is provided with the expansion post, the surface of expansion post is same horizontal plane with the surface of bolt, be provided with the opening in the expansion post, the opening is the setting of radius frustum shape, be provided with the spread groove on the bolt, spread groove diameter and opening top surface diameter are to unanimous, and be linked together with the opening, be provided with reverse screw thread on the spread groove inner wall, and be provided with reverse bolt with reverse screw thread phase-match, reverse bolt highly be greater than the height of bolt and expansion post, reverse bolt top is hexagon bolt structure setting, the diameter of reverse bolt sets up with the diameter phase-match of spread groove. The utility model discloses it is effectual to have firm, can not produce not hard up beneficial effect after the long-term service, its mainly used installation fixed preventer.
Description
Technical Field
The utility model relates to a mechanical connecting part technical field, specific preventer double-end fastening bolt that says so.
Background
The blowout preventer is used for closing a well mouth in the operation processes of oil testing, well repairing, well completion and the like to prevent blowout accidents, integrates the full sealing function and the half sealing function into a whole, has the characteristics of simple structure, easy operation, high pressure resistance and the like, is a well mouth safety sealing device for preventing blowout commonly used in oil fields, is the most important well control device, has an important role in the drilling process, particularly the underbalanced drilling process, is installed on a well mouth casing head to control a blowout device for high pressure oil, gas and water during oil drilling, and needs to be fixedly installed with the well mouth casing head when the blowout preventer is installed, but when the existing bolt is installed, the fixing effect is general, the bolt can be loosened after long use time, the use of the blowout preventer can be influenced, and potential safety hazards can be generated in serious cases.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned weak point that exists among the prior art, the utility model aims at providing a firm effectual, can not produce not hard up preventer double-end fastening bolt after the long service life.
The utility model discloses a realize that the technical scheme that above-mentioned purpose adopted is: double-end fastening bolt of preventer, including the bolt, the diameter of bolt with the bolt groove phase-match of preventer sets up, the bolt bottom is provided with the expansion post, the surface of expansion post with the surface of bolt is same horizontal plane, be provided with the opening in the expansion post, the opening is the setting of inverted circular truncated cone shape, be provided with the spread groove on the bolt, the spread groove diameter with opening top surface diameter to unanimity, and with the opening is linked together, be provided with reverse screw on the spread groove inner wall, and with reverse screw assorted is provided with reverse bolt, reverse bolt highly be greater than the height of bolt and expansion post, reverse bolt top is hexagon bolt structure setting, reverse bolt's diameter with the diameter phase-match of spread groove sets up.
The material of the expansion column is a rubber expansion column.
The height of the expansion column is more than 1 cm and less than 2 cm.
The bolt is made of stainless steel.
The reverse bolt is made of the same material as the bolt.
The expansion column is fixedly connected with the bolt.
The utility model has the advantages that: firm effectual, can not produce after the live time and become flexible, when installing, because reverse bolt and reverse screw thread are that the phase-match sets up, so can not influence the bolt inslot that the bolt installed the preventer, after installing the bolt, reverse rotation reverse bolt, make it move down in the spread groove, because the opening that sets up in the expansion post is the setting of inverted circular truncated cone, and opening top surface and spread groove diameter are to unanimous, so after reverse bolt gets into the opening, can prop the expansion post open, make its outside inflation, thereby can fill the bolt groove of preventer, make its structure inseparabler, can prevent that the long condition that takes place to become flexible of bolt fastening time from taking place.
Drawings
FIG. 1 is a schematic sectional view of the main body of the structure of the present invention;
FIG. 2 is a schematic view of the structural connecting groove of the present invention;
fig. 3 is a schematic top view of the structure of the present invention.
In the figure: 1 bolt, 2 expansion columns, 3 openings, 4 connecting grooves, 5 reverse threads and 6 reverse bolts.
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.
Please refer to fig. 1-3, the stud fastening bolt of the blowout preventer comprises a bolt 1, the diameter of the bolt 1 is matched with the bolt groove of the blowout preventer, the bottom of the bolt 1 is provided with an expansion column 2, the outer surface of the expansion column 2 and the outer surface of the bolt 1 are on the same horizontal plane, an opening 3 is arranged in the expansion column 2, the opening 3 is in an inverted frustum shape, a connecting groove 4 is arranged on the bolt 1, the diameter of the connecting groove 4 is consistent with the diameter of the top surface of the opening 3 and is communicated with the opening 3, a reverse thread 5 is arranged on the inner wall of the connecting groove 4, a reverse bolt 6 is arranged in match with the reverse thread 5, the height of the reverse bolt 6 is larger than the height of the bolt 1 and the expansion column 2, the top of the reverse bolt 6 is in a hexagon bolt.
In the utility model, the material of the expansion column 2 is the rubber expansion column 2, which is wear-resistant and has good expansibility;
the height of the expansion column 2 is larger than 1 cm and smaller than 2 cm, so that the influence of the overhigh height of the expansion column 2 on the installation of the bolt 1 is prevented;
the bolt 1 is made of stainless steel, so that the bolt is wear-resistant, corrosion-resistant and long in service life;
the reverse bolt 6 is made of the same material as the bolt 1, and has wear resistance, corrosion resistance and long service life;
the expansion column 2 is fixedly connected with the bolt 1, so that the structural stability is improved.
The utility model discloses a theory of operation is: during the use, because reverse bolt 6 and reverse screw thread 5 are the phase-match setting, so can not influence the bolt inslot that bolt 1 installed the preventer, after installing bolt 1, reverse rotation reverse bolt 6, make it move down in spread groove 4, because opening 3 that sets up in the expansion column 2 is the setting of inverted circular truncated cone, and opening 3 top surface and spread groove 4 diameter are to unanimous, so after reverse bolt 6 gets into opening 3, can prop expansion column 2 open, make its outside inflation, thereby can fill the bolt groove of preventer, make its structure inseparabler, can prevent that bolt 1 fixed time from taking place the condition of becoming flexible and taking place for a long time.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (6)
1. Blowout preventer stud fastening bolt includes bolt (1), its characterized in that: the diameter of the bolt (1) is matched with the bolt groove of the blowout preventer, an expansion column (2) is arranged at the bottom of the bolt (1), the outer surface of the expansion column (2) is the same horizontal plane with the outer surface of the bolt (1), an opening (3) is arranged in the expansion column (2), the opening (3) is in an inverted frustum shape, a connecting groove (4) is arranged on the bolt (1), the diameter of the connecting groove (4) is consistent with the diameter of the top surface of the opening (3) and communicated with the opening (3), reverse threads (5) are arranged on the inner wall of the connecting groove (4), reverse bolts (6) are arranged in a way of being matched with the reverse threads (5), the height of the reverse bolts (6) is larger than the heights of the bolt (1) and the expansion column (2), and the top of the reverse bolts (6) is in a hexagon bolt structure, the diameter of the reverse bolt (6) is matched with that of the connecting groove (4).
2. The blowout preventer stud fastening bolt of claim 1, wherein: the material of the expansion column (2) is the rubber expansion column (2).
3. The blowout preventer stud fastening bolt of claim 1, wherein: the height of the expansion column (2) is more than 1 cm and less than 2 cm.
4. The blowout preventer stud fastening bolt of claim 1, wherein: the bolt (1) is made of stainless steel.
5. The blowout preventer stud fastening bolt of claim 1, wherein: the reverse bolt (6) is consistent with the bolt (1) in material.
6. The blowout preventer stud fastening bolt of claim 1, wherein: the expansion column (2) is fixedly connected with the bolt (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921722218.2U CN210660992U (en) | 2019-10-15 | 2019-10-15 | Double-end fastening bolt of blowout preventer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921722218.2U CN210660992U (en) | 2019-10-15 | 2019-10-15 | Double-end fastening bolt of blowout preventer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210660992U true CN210660992U (en) | 2020-06-02 |
Family
ID=70839853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921722218.2U Active CN210660992U (en) | 2019-10-15 | 2019-10-15 | Double-end fastening bolt of blowout preventer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210660992U (en) |
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2019
- 2019-10-15 CN CN201921722218.2U patent/CN210660992U/en active Active
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