CN212156156U - Mounting structure of petroleum pipeline sealing fastening nut assembly - Google Patents
Mounting structure of petroleum pipeline sealing fastening nut assembly Download PDFInfo
- Publication number
- CN212156156U CN212156156U CN202020446716.5U CN202020446716U CN212156156U CN 212156156 U CN212156156 U CN 212156156U CN 202020446716 U CN202020446716 U CN 202020446716U CN 212156156 U CN212156156 U CN 212156156U
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- CN
- China
- Prior art keywords
- nut
- flange
- bolt
- sealing
- petroleum pipeline
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model belongs to the fastener field, concretely relates to mounting structure of petroleum pipeline seal fastening nut sub-assembly, including first flange, the second flange, the bolt, gland nut and outer nut, first flange and second flange are laminated mutually, the bolt hole that has the intercommunication on two flanges, first screw hole is seted up in the left side of first flange, the second screw hole is seted up on the right side of second flange, the head of bolt is through the first screw hole spiro union of first external screw thread with first flange, cup joint gland nut and outer nut in the pole portion of bolt, gland nut's outer wall passes through the second screw hole spiro union of second external screw thread with the second flange, outer nut offsets with the pole portion spiro union of bolt and with gland nut. The utility model discloses a first external screw thread of bolt and the first screw hole spiro union of first flange, through seal nut's second external screw thread and the second screw hole spiro union of second flange, still strengthen the seal between seal nut and the outer nut through rubber seal, make sealing capacity strengthen greatly.
Description
Technical Field
The utility model belongs to the fastener field, concretely relates to mounting structure of sealed fastening nut sub-assembly of petroleum pipeline.
Background
In the two prior arts, the hidden danger of leakage still exists at the positions where the bolts and the nuts are installed on the two flanges, so the applicant proposes an installation structure of a nut assembly for sealing and fastening the petroleum pipeline, so as to solve the above problems.
SUMMERY OF THE UTILITY MODEL
In order to compensate for the defects of the prior art, the utility model provides a mounting structure technical scheme of a petroleum pipeline sealing fastening nut sub-assembly.
The mounting structure of the petroleum pipeline sealing fastening nut assembly is characterized by comprising a first flange and a second flange, the bolt, gland nut and outer nut, laminate mutually about first flange and the second flange, the bolt hole that has the intercommunication on two flanges, the first screw hole rather than the bolt hole intercommunication is seted up in the left side of first flange, the second screw hole rather than the bolt hole intercommunication is seted up on the right side of second flange, the head side of bolt sets up first external screw thread, the bolt hole of two flanges is inserted in the pole portion of bolt, the head of bolt passes through the first screw hole spiro union of first external screw thread with first flange, gland nut and outer nut cup joint from a left side to the right side in proper order on the pole portion tail end of bolt, gland nut's outer wall sets up the second external screw thread, gland nut's outer wall passes through the second external screw thread and the second screw hole spiro union of second flange, outer nut offsets with gland nut with the pole portion spiro union of bolt.
The mounting structure of the petroleum pipeline sealing and fastening nut assembly is characterized in that a rubber sealing ring is arranged between the sealing nut and the outer nut.
The mounting structure of the fastening nut assembly for petroleum pipeline sealing is characterized in that a first counter bore communicated with a nut hole of the external nut is formed in the left side of the external nut, a second counter bore communicated with a through hole of the sealing nut is formed in the right side of the sealing nut, a rubber sealing ring is bonded and embedded in the first counter bore, and the left side of the rubber sealing ring is embedded and abutted against the second counter bore.
The mounting structure of the petroleum pipeline sealing and fastening nut assembly is characterized in that the outer diameters of the sealing nut and the outer nut are the same.
The mounting structure of the petroleum pipeline sealing and fastening nut assembly is characterized in that the inner wall of the sealing nut is in clearance fit with the rod part of the bolt.
Compared with the prior art, the utility model discloses a sealed of this one end of first flange is realized to the first external screw thread of bolt and the first screw hole spiro union of first flange, and second external screw thread through gland nut and the second screw hole spiro union of second flange realize the sealed of this one end of second flange, still strengthens sealed between gland nut and the external nut through rubber seal in addition, and sealing capacity strengthens greatly.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic view of the bolt structure of the present invention;
fig. 3 is a cross-sectional view of a first flange of the present invention;
fig. 4 is a cross-sectional view of a second flange according to the present invention;
fig. 5 is a cross-sectional view of the seal nut of the present invention;
fig. 6 is a cross-sectional view of the rubber seal ring of the present invention;
fig. 7 is a sectional view of the outer nut of the present invention.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
As shown in the figure, the mounting structure of the petroleum pipeline sealing and fastening nut assembly comprises a first flange 1, a second flange 2, a bolt 3, a sealing nut 4 and an outer nut 5, wherein the first flange 1 and the second flange 2 are attached to each other left and right, the two flanges are respectively provided with a communicated bolt hole, the left side of the first flange 1 is provided with a first threaded hole 100 communicated with the bolt hole, the right side of the second flange 2 is provided with a second threaded hole 200 communicated with the bolt hole, the side surface of the head of the bolt 3 is provided with a first outer thread 300, the rod part of the bolt 3 is inserted into the bolt holes of the two flanges, the head of the bolt 3 is in threaded connection with the first threaded hole 100 of the first flange 1 through the first outer thread 300, the tail end of the rod part of the bolt 3 extends out of the screw hole of the second flange 2, the sealing nut 4 and the outer nut 5 are sequentially sleeved on the bolt from left to right, the outer wall of the gland nut 4 is screwed with the second threaded hole 200 of the second flange 2 through a second external thread 400, and the external nut 5 is screwed with the rod part of the bolt 3 and abuts against the gland nut 4.
As the utility model discloses an optimize structure: a rubber sealing ring 6 is arranged between the sealing nut 4 and the outer nut 5, and the rubber material has good oil sealing performance.
As the utility model discloses an optimize structure: the left side of outer nut 5 sets up the first counter bore 500 rather than nut hole intercommunication, first counter bore 500 diameter is greater than nut hole diameter, the right side of gland nut 4 sets up the second counter bore 401 rather than the through-hole intercommunication, second counter bore 401 diameter is greater than corresponding through-hole diameter, rubber seal 6's right side is inlayed through glue and is located first counter bore 500, rubber seal 6's left side is inlayed and is supported in second counter bore 401, rubber seal 6's left side holding promptly is in second counter bore 401, and offset with second counter bore 401 pore wall.
As the utility model discloses an optimize structure: the gland nut 4 has the same outer diameter as the outer nut 5.
As the utility model discloses an optimize structure: the inner wall of the gland nut 4 is in clearance fit with the rod part of the bolt 3.
The utility model discloses during the use, through the first external screw thread 300 of bolt 3 and the first screw hole 100 spiro union of first flange 1, realize the sealed of this one end of first flange 1, through the second external screw thread 400 of gland nut 4 and the second screw hole 200 spiro union of second flange 2, realize the sealed of this one end of second flange 2, still strengthen the sealed between gland nut 4 and the outer nut 5 through rubber seal 6 in addition, sealing capacity strengthens greatly.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (5)
1. The mounting structure of the fastening nut assembly for sealing the petroleum pipeline is characterized by comprising a first flange and a second flange, the bolt, gland nut and outer nut, laminate mutually about first flange and the second flange, the bolt hole that has the intercommunication on two flanges, the first screw hole rather than the bolt hole intercommunication is seted up in the left side of first flange, the second screw hole rather than the bolt hole intercommunication is seted up on the right side of second flange, the head side of bolt sets up first external screw thread, the bolt hole of two flanges is inserted in the pole portion of bolt, the head of bolt passes through the first screw hole spiro union of first external screw thread with first flange, gland nut and outer nut cup joint from a left side to the right side in proper order on the pole portion tail end of bolt, gland nut's outer wall sets up the second external screw thread, gland nut's outer wall passes through the second external screw thread and the second screw hole spiro union of second flange, outer nut offsets with gland nut with the pole portion spiro union of bolt.
2. The mounting arrangement for a petroleum pipeline sealing and fastening nut assembly as defined in claim 1, wherein a rubber gasket is disposed between the sealing nut and the outer nut.
3. The mounting structure of the fastening nut assembly for petroleum pipeline sealing as claimed in claim 2, wherein the left side of the outer nut is provided with a first counter bore communicated with the nut bore, the right side of the sealing nut is provided with a second counter bore communicated with the through hole, the right side of the rubber sealing ring is adhered and embedded in the first counter bore, and the left side of the rubber sealing ring is embedded and abutted against the second counter bore.
4. The mounting arrangement for a petroleum pipeline sealing and fastening nut assembly as recited in claim 1, wherein said sealing nut has the same outside diameter as said external nut.
5. The mounting arrangement for a petroleum pipeline seal fastener nut assembly as recited in claim 1, wherein said inner wall of said seal nut is a clearance fit with said shank portion of said bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020446716.5U CN212156156U (en) | 2020-03-31 | 2020-03-31 | Mounting structure of petroleum pipeline sealing fastening nut assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020446716.5U CN212156156U (en) | 2020-03-31 | 2020-03-31 | Mounting structure of petroleum pipeline sealing fastening nut assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212156156U true CN212156156U (en) | 2020-12-15 |
Family
ID=73725458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020446716.5U Expired - Fee Related CN212156156U (en) | 2020-03-31 | 2020-03-31 | Mounting structure of petroleum pipeline sealing fastening nut assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212156156U (en) |
-
2020
- 2020-03-31 CN CN202020446716.5U patent/CN212156156U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201215 |