CN211145757U - Natural gas line end cap - Google Patents
Natural gas line end cap Download PDFInfo
- Publication number
- CN211145757U CN211145757U CN201921535016.7U CN201921535016U CN211145757U CN 211145757 U CN211145757 U CN 211145757U CN 201921535016 U CN201921535016 U CN 201921535016U CN 211145757 U CN211145757 U CN 211145757U
- Authority
- CN
- China
- Prior art keywords
- pipeline
- lining pipe
- plate
- natural gas
- port
- 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 relates to a natural gas pipeline end cap, connect with the port of the pipeline of the natural gas, the port of the pipeline is provided with the ring flange, including inside lining pipe, sealed pad, clamp plate, grip block, locating pin post and extrusion bolt, inside lining pipe is pegged graft in the port of the pipeline, the outer end of inside lining pipe is provided with the connection pad of laminating mutually with the ring flange, the grip block has with the centre gripping groove and via the clamping groove clamp ring flange and connection pad, relative through-hole has been seted up on grip block, connection pad, ring flange, locating pin post is pegged graft in the through-hole; the diameter of the lining pipe is smaller than the inner diameter of the pipeline, and one end of the lining pipe, which is positioned in the pipeline, is connected with a fixing plate with the diameter equal to the inner diameter of the pipeline; the sealing gasket hoop is sleeved on the inner liner tube and is attached to the fixed plate; the pressing plate comprises a clamping ring positioned outside the lining pipe and an extrusion plate positioned inside the lining pipe, and the clamping ring is connected with the extrusion plate through a plurality of ribs penetrating through the strip-shaped holes; the extrusion bolt is screwed into the inner tube.
Description
Technical Field
The utility model relates to a natural gas line end cap.
Background
The natural gas pipeline needs to be subjected to pressure testing before being put into use, the pressure bearing condition of the pipeline under high air pressure is detected, the pipeline is repaired in time when a dew point appears, and production accidents caused after the pipeline is put into use are avoided. When a pressure test is carried out, a port of a pipeline needs to be sealed; in the prior art, a hard plug is filled in a port of a pipeline in an interference fit manner, the plug is fixed by virtue of static friction force between the plug and the inner wall of the port of the pipeline, but certain damage to the inner wall of the pipeline is inevitably formed, and the strength of the port of the pipeline is influenced.
Disclosure of Invention
The utility model aims to solve the above problem, provide a natural gas line end cap specifically realizes by following technical scheme:
a natural gas pipeline plug is connected with a port of a natural gas pipeline, a flange plate is arranged at the port of the pipeline and comprises an inner lining pipe, a sealing gasket, a pressing plate, a clamping plate, a positioning pin column and an extrusion bolt, the inner lining pipe is inserted into the port of the pipeline, a connecting disc attached to the flange plate is arranged at the outer end of the inner lining pipe, the clamping plate is provided with a clamping groove and clamps the flange plate and the connecting disc through the clamping groove, opposite through holes are formed in the clamping plate, the connecting disc and the flange plate, and the positioning pin column is inserted into the through holes; the diameter of the lining pipe is smaller than the inner diameter of the pipeline, and one end of the lining pipe, which is positioned in the pipeline, is connected with a fixing plate with the diameter equal to the inner diameter of the pipeline; the sealing gasket hoop is sleeved on the inner liner tube and is attached to the fixing plate; the side wall of the middle part of the lining pipe is provided with a plurality of strip-shaped holes which are longitudinally arranged, the pressing plate comprises a clamping ring which is positioned outside the lining pipe and an extrusion plate which is positioned inside the lining pipe, and the clamping ring is connected with the extrusion plate through a plurality of ribs which penetrate through the strip-shaped holes; the clamping ring is positioned on one side, away from the fixing plate, of the sealing gasket; the inner wall of the outer side of the lining pipe is provided with internal threads, and the extrusion bolt is connected in the inner pipe in a threaded mode.
The natural gas pipeline plug is further designed in that the sealing gasket is annular, the inner diameter of the sealing gasket is equal to the outer diameter of the lining pipe, and the outer diameter of the sealing gasket is equal to the inner diameter of the pipeline.
The natural gas pipeline plug is further designed in that the thickness of the sealing gasket is not less than 5 mm.
The beneficial effects of the utility model reside in that:
the utility model discloses utilize extrusion bolt, clamp plate to sealed the pad extrude make sealed pad produce radial extension to make sealed the pad realize the shutoff to the pipeline port, this structure can not cause any destruction to pipeline port portion, and the structure is easily installed and removed.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a schematic view of a platen structure.
Detailed Description
The invention is further described with reference to the drawings and examples in the following description:
the natural gas pipeline plug is connected with a port of a natural gas pipeline 1, a flange plate 11 is arranged at the port of the pipeline and comprises a lining pipe 2, a sealing gasket 3, a pressing plate 4, a clamping plate 5, a positioning pin column 6 and an extrusion bolt 7, the lining pipe is inserted into the port of the pipeline, a connecting disc 21 attached to the flange plate is arranged at the outer end of the lining pipe 2, the clamping plate is provided with a clamping groove and clamps the flange plate and the connecting disc through the clamping groove, opposite through holes are formed in the clamping plate, the connecting disc and the flange plate, and the positioning pin column 6 is inserted into the through hole; the diameter of the lining pipe is smaller than the inner diameter of the pipeline, and one end of the lining pipe, which is positioned in the pipeline, is connected with a fixing plate 22 with the diameter equal to the inner diameter of the pipeline; the sealing gasket 3 is sleeved on the inner liner tube and is attached to the fixing plate; the middle side wall of the lining pipe 2 is provided with a plurality of strip-shaped holes 23 which are longitudinally arranged, the pressing plate 4 comprises a clamping ring 41 which is positioned outside the lining pipe and a squeezing plate 42 which is positioned inside the lining pipe, and the clamping ring is connected with the squeezing plate through a plurality of ribs 43 which penetrate through the strip-shaped holes; the clamping ring is positioned on one side, away from the fixing plate, of the sealing gasket; the inner wall of the outer side of the lining pipe is provided with internal threads, and the extrusion bolt 7 is connected in the inner pipe in a threaded mode.
In practice, the fixing plate 22 is removably connected to the end of the inner liner tube, in fact by means of a screw thread, so as to collar the gasket on the inner liner tube, although it is possible to directly collar it, thanks to the elasticity of the gasket; after the sealing gasket is sleeved, inserting the inner lining pipe into the port of the pipeline, and fixing the inner lining pipe by using the clamping plate and the positioning pin; and then, rotating the extrusion bolt to enable the extrusion bolt to apply pressure to the sealing gasket through the pressing plate, so that the sealing gasket is radially expanded violently, and the port of the pipeline is completely blocked.
Specifically, the sealing gasket is annular, the inner diameter of the sealing gasket is equal to the outer diameter of the lining pipe, and the outer diameter of the sealing gasket is equal to the inner diameter of the pipeline. And the thickness of the gasket is not less than 5 mm.
The utility model discloses utilize extrusion bolt, clamp plate to sealed the pad extrude make sealed pad produce radial extension to make sealed the pad realize the shutoff to the pipeline port, this structure can not cause any destruction to pipeline port portion, and the structure is easily installed and removed.
Claims (3)
1. A natural gas pipeline plug is connected with a port of a natural gas pipeline, a flange plate is arranged at the port of the pipeline, and the plug is characterized by comprising an inner lining pipe, a sealing gasket, a pressing plate, a clamping plate, a positioning pin and an extrusion bolt, wherein the inner lining pipe is inserted into the port of the pipeline; the diameter of the lining pipe is smaller than the inner diameter of the pipeline, and one end of the lining pipe, which is positioned in the pipeline, is connected with a fixing plate with the diameter equal to the inner diameter of the pipeline; the sealing gasket hoop is sleeved on the inner liner tube and is attached to the fixing plate; the side wall of the middle part of the lining pipe is provided with a plurality of strip-shaped holes which are longitudinally arranged, the pressing plate comprises a clamping ring which is positioned outside the lining pipe and an extrusion plate which is positioned inside the lining pipe, and the clamping ring is connected with the extrusion plate through a plurality of ribs which penetrate through the strip-shaped holes; the clamping ring is positioned on one side, away from the fixing plate, of the sealing gasket; the inner wall of the outer side of the lining pipe is provided with internal threads, and the extrusion bolt is connected in the inner pipe in a threaded mode.
2. The natural gas conduit plug of claim 1, wherein the gasket is annular and has an inner diameter equal to the outer diameter of the liner tube and an outer diameter equal to the inner diameter of the conduit.
3. The natural gas pipe plug as in claim 1, wherein the gasket has a thickness of not less than 5 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921535016.7U CN211145757U (en) | 2019-09-16 | 2019-09-16 | Natural gas line end cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921535016.7U CN211145757U (en) | 2019-09-16 | 2019-09-16 | Natural gas line end cap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211145757U true CN211145757U (en) | 2020-07-31 |
Family
ID=71767222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921535016.7U Expired - Fee Related CN211145757U (en) | 2019-09-16 | 2019-09-16 | Natural gas line end cap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211145757U (en) |
-
2019
- 2019-09-16 CN CN201921535016.7U patent/CN211145757U/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: 20200731 Termination date: 20210916 |