CN209800905U - Novel steel-plastic adapter for gas - Google Patents
Novel steel-plastic adapter for gas Download PDFInfo
- Publication number
- CN209800905U CN209800905U CN201920589150.9U CN201920589150U CN209800905U CN 209800905 U CN209800905 U CN 209800905U CN 201920589150 U CN201920589150 U CN 201920589150U CN 209800905 U CN209800905 U CN 209800905U
- Authority
- CN
- China
- Prior art keywords
- pipe fitting
- screw thread
- novel steel
- terminal surface
- sealing gasket
- 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
Links
Landscapes
- Non-Disconnectible Joints And Screw-Threaded Joints (AREA)
Abstract
The utility model relates to a novel steel-plastic crossover sub for gas, it includes first pipe fitting and second pipe fitting, first pipe fitting and second pipe fitting pass through screw thread A and connect, just the second pipe fitting cover is established the interior terminal surface of first pipe fitting, the interior terminal surface of joint department of second pipe fitting all is provided with the screw thread, the second pipe fitting is connected with the fixed cover that is used for fastening the second pipe fitting through screw thread B, the interior terminal surface of second pipe fitting is provided with the arch, be provided with the sealed pad that is used for sealing on the bellied left end face, the sealed pad sets up between the right-hand member face and the arch of first pipe fitting, the sealed pad adopts the rubber packing pad, the structural shape of first pipe fitting, second pipe fitting and fixed cover is the hollow tube, the sum of the length of screw thread A and sealed pad is not less than the length of screw thread B; therefore, the utility model has the advantages of firm combination, strong compressive capacity and reasonable structure.
Description
Technical Field
The utility model belongs to the technical field of the gas pipe fitting connects, concretely relates to crossover sub is moulded with novel steel to gas.
Background
Along with the increasing development and technological progress of gas conveying pipelines, the technical requirements on the steel-plastic conversion pipe fitting of the gas conveying pipeline are correspondingly higher and higher, but limited by the structure, the connection structure is complicated, and the main problems exist that the wall thickness of a PE pipe end at a joint part is thinned due to extrusion, the axial drawing force of the steel-plastic conversion pipe fitting is reduced, the tensile property and the sealing property can not be ensured when the steel-plastic conversion pipe fitting is used under severe environmental conditions such as earthquakes, mountain landslides and the like, and especially, the potential safety hazard exists when the steel-plastic conversion pipe fitting is used for a buried gas pipeline system; the local drift diameter of the pipe fitting is reduced due to the existence of the support ring in the pipe fitting, so that the pipe fitting generates larger pressure drop in the test and actual operation, and aiming at the defects, a novel gas steel-plastic adapter with firm combination, strong pressure resistance and reasonable structure is required to be developed; therefore, the development of the novel steel-plastic adapter for the fuel gas, which is firm in combination, strong in pressure resistance and reasonable in structure, has very important significance.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the defects of the prior art and providing a novel steel-plastic adapter for gas, which has firm combination, strong compressive capacity and reasonable structure.
The purpose of the utility model is realized like this: the utility model provides a crossover sub is moulded to novel steel for gas, it includes first pipe fitting and second pipe fitting, first pipe fitting and second pipe fitting pass through screw thread A and connect, just the second pipe fitting cover is established the interior terminal surface of first pipe fitting, the interior terminal surface of joint department of second pipe fitting all is provided with the screw thread, the second pipe fitting is connected with through screw thread B and is used for the fastening the fixed cover of second pipe fitting, the interior terminal surface of second pipe fitting is provided with the arch, be provided with on the bellied left end face and be used for sealed the pad.
The sealing gasket is arranged between the right end face of the first pipe fitting and the protrusion, and the sealing gasket is a rubber sealing gasket.
The first pipe fitting, the second pipe fitting and the fixing sleeve are all hollow pipes in structural shapes.
The sum of the lengths of the thread A and the sealing gasket is not less than the length of the thread B.
The first pipe fitting, the second pipe fitting and the fixing sleeve are made of steel-plastic materials.
The bulge and the second pipe are integrally connected.
The structure of protruding and sealed pad is the structure of ring shape leather packing, just protruding width is greater than the width of sealed pad.
The utility model has the advantages that: the utility model has the advantages that the purpose of further fixing the first pipe fitting and the second pipe fitting is achieved by arranging the threads on the inner and outer pipe walls of the joint of the second pipe fitting, and the first pipe fitting and the second pipe fitting are connected by the threads in the prior art, so that the connection is not firm, the compression resistance and the tensile resistance are not strong, and the underground pipeline is not applicable; the fixing sleeve is added in the device, the fixing sleeve can be made of steel and can also be a stainless steel connecting sleeve with the surface subjected to corrosion prevention treatment, and the problem that the interface is not pressure-resistant due to the fact that the interface is weak is solved; therefore, the utility model has the advantages of firm combination, strong compressive capacity and reasonable structure.
Drawings
Fig. 1 is a front view of the novel gas steel-plastic adapter of the utility model.
Fig. 2 is a connection structure pattern of fig. 1.
Fig. 3 is a left side view of the harness of fig. 1.
In the figure: 1. the pipe fitting comprises a first pipe fitting 2, a second pipe fitting 3, a fixing sleeve 4, a sealing gasket 5, a protrusion 6, a thread A7 and a thread B.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
Example 1
As shown in fig. 1-3, a crossover sub is moulded to novel steel for gas, it includes first pipe fitting 1 and second pipe fitting 2, first pipe fitting 1 and second pipe fitting 2 are connected through screw thread a6, just the second pipe fitting 2 cover is established the interior terminal surface of first pipe fitting 1, the interior terminal surface of joint department of second pipe fitting 2 all is provided with the screw thread, second pipe fitting 2 is connected with through screw thread B7 and is used for the fastening the fixed cover 3 of second pipe fitting 2, the interior terminal surface of second pipe fitting 2 is provided with arch 5, be provided with on arch 5's the left end face and be used for sealed the pad 4.
The embodiment has the advantages that the purpose of further fixing the first pipe fitting and the second pipe fitting is achieved by arranging the threads on the inner pipe wall and the outer pipe wall of the joint of the second pipe fitting, the first pipe fitting and the second pipe fitting are connected through the threads in the prior art, the connection is not firm, the compression resistance and the tensile resistance are not strong, and the method is not suitable for underground pipelines; the fixing sleeve is added in the device, the fixing sleeve can be made of steel and can also be a stainless steel connecting sleeve with the surface subjected to corrosion prevention treatment, and the problem that the interface is not pressure-resistant due to the fact that the interface is weak is solved; therefore, the utility model has the advantages of firm combination, strong compressive capacity and reasonable structure.
Example 2
The sealing gasket 4 is arranged between the right end face of the first pipe fitting 1 and the protrusion 5, the sealing gasket 4 is made of rubber sealing gaskets, and the structural shapes of the first pipe fitting 1, the second pipe fitting 2 and the fixing sleeve 3 are hollow pipes.
In this embodiment, by considering the sealing performance, the sealing gasket is arranged and is arranged between the right end surface of the first pipe and the protrusion, because when the first pipe and the second pipe are connected, the position of air leakage is most likely to be at the threaded interface, and therefore, a sealing gasket is required to be arranged at the interface, and the sealing gasket is made of rubber and has strong compressibility.
Example 3
The sum of the lengths of the thread A6 and the sealing gasket 4 is not less than the length of the thread B7, and the first pipe fitting 1, the second pipe fitting 2 and the fixing sleeve 3 are made of steel-plastic materials.
In this embodiment, the mode that the sum of the lengths of the screw thread a and the sealing gasket is not less than the length of the screw thread B is adopted, the purpose is also for better leakproofness, the rubber sealing gasket can expand gradually after being compressed, the expanded sealing gasket can fill up the empty part around, and also can expand to the threaded connection, and then reach better sealed effect.
Example 4
Protruding 5 with the connected mode before the second pipe fitting 2 is integrated into one piece, protruding 5 and the structure of sealed 4 of filling up are the structure of ring shape leather packing, just protruding 5's width is greater than the width of sealed 4 of filling up.
In the embodiment, the bulge and the second pipe fitting are designed to be integrally formed, so as to improve the firmness of the bulge; the structure of the bulge and the sealing gasket is the structure of the circular leather gasket, and the advantage is that the ventilation is not influenced while the sealing is carried out; the width of the protrusion is larger than that of the sealing gasket, so that safety is ensured, and the narrow protrusion can cause extrusion of the sealing gasket and affect the sealing effect.
The present invention is further described in the detailed description, rather than in the limited form thereof, and it will be obvious to those skilled in the art that changes may be made in the structure without departing from the spirit and scope of the invention, and it is intended that all such changes be covered by the appended claims.
Claims (7)
1. The utility model provides a crossover sub is moulded to novel steel for gas, it includes first pipe fitting and second pipe fitting, its characterized in that: first pipe fitting and second pipe fitting pass through screw thread A and connect, just the second pipe fitting cover is established the interior terminal surface of first pipe fitting, the interior terminal surface of joint department of second pipe fitting all is provided with the screw thread, the second pipe fitting is connected with through screw thread B and is used for the fastening the fixed cover of second pipe fitting, the interior terminal surface of second pipe fitting is provided with the arch, be provided with on the bellied left end face and be used for sealed the pad.
2. The novel steel-plastic adapter for gas use according to claim 1, characterized in that: the sealing gasket is arranged between the right end face of the first pipe fitting and the protrusion, and the sealing gasket is a rubber sealing gasket.
3. The novel steel-plastic adapter for gas use according to claim 1, characterized in that: the first pipe fitting, the second pipe fitting and the fixing sleeve are all hollow pipes in structural shapes.
4. The novel steel-plastic adapter for gas use according to claim 1, characterized in that: the sum of the lengths of the thread A and the sealing gasket is not less than the length of the thread B.
5. The novel steel-plastic adapter for gas use according to claim 1, characterized in that: the first pipe fitting, the second pipe fitting and the fixing sleeve are made of steel-plastic materials.
6. The novel steel-plastic adapter for gas use according to claim 1, characterized in that: the bulge and the second pipe are integrally connected.
7. The novel steel-plastic adapter for gas use according to claim 1, characterized in that: the structure of protruding and sealed pad is the structure of ring shape leather packing, just protruding width is greater than the width of sealed pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920589150.9U CN209800905U (en) | 2019-04-27 | 2019-04-27 | Novel steel-plastic adapter for gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920589150.9U CN209800905U (en) | 2019-04-27 | 2019-04-27 | Novel steel-plastic adapter for gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209800905U true CN209800905U (en) | 2019-12-17 |
Family
ID=68831358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920589150.9U Expired - Fee Related CN209800905U (en) | 2019-04-27 | 2019-04-27 | Novel steel-plastic adapter for gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209800905U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114484101A (en) * | 2021-12-27 | 2022-05-13 | 武汉航空仪表有限责任公司 | Pressure seal interface process equipment capable of being quickly disassembled and assembled |
-
2019
- 2019-04-27 CN CN201920589150.9U patent/CN209800905U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114484101A (en) * | 2021-12-27 | 2022-05-13 | 武汉航空仪表有限责任公司 | Pressure seal interface process equipment capable of being quickly disassembled and assembled |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109667934B (en) | Pipeline interface sealing device and preparation method | |
| CN202469293U (en) | Pipeline sealing structure | |
| CN103016871A (en) | Connecting arrangement | |
| CN209800905U (en) | Novel steel-plastic adapter for gas | |
| CN106122639A (en) | A kind of hose connection device | |
| CN104712865A (en) | Expansion compensation connecting pipe fitting | |
| CN207437963U (en) | Glass reinforced plastic push pipe joint pressure testing device | |
| CN211039989U (en) | Gas pipeline joint with antidetonation function | |
| CN212131569U (en) | Anti-leakage corrugated pipe | |
| CN205745740U (en) | A kind of conduit coupling of good airproof performance | |
| CN104279381A (en) | Pipe fitting locking connector | |
| CN207316305U (en) | A kind of bite type seal tube connector | |
| CN202416361U (en) | Inspection well for improving sealing performance of interface and branch pipe connected with inspection well | |
| CN204901157U (en) | Nonrust corrugated steel pipe's connector | |
| CN211258703U (en) | Telescopic pipe for gas drainage in coal mine | |
| CN212178170U (en) | Gas tubular product convenient to installation | |
| CN211259911U (en) | Petroleum pipeline sealing device | |
| CN204175198U (en) | A kind of good antiscale property tubing coupling structure | |
| CN103162029A (en) | Pipe connector of anchor ear type quick-change pipeline | |
| CN219692512U (en) | Enhanced water-stopping socket | |
| CN107152584B (en) | High pressure underground gas well underground method for repairing leakage | |
| CN201696804U (en) | Expansion type leather cup | |
| CN205806699U (en) | A kind of rubber tubing axial compression fastener | |
| CN201228831Y (en) | Universal joint compensating mechanism for pressure conduit | |
| CN206723704U (en) | High pressure underground gas well underground repairing leakage device |
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: 20191217 Termination date: 20210427 |