CN211550808U - Natural gas pipe joint - Google Patents
Natural gas pipe joint Download PDFInfo
- Publication number
- CN211550808U CN211550808U CN201921742225.9U CN201921742225U CN211550808U CN 211550808 U CN211550808 U CN 211550808U CN 201921742225 U CN201921742225 U CN 201921742225U CN 211550808 U CN211550808 U CN 211550808U
- Authority
- CN
- China
- Prior art keywords
- connecting groove
- nut
- pipe joint
- natural gas
- air inlet
- 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
Images
Landscapes
- Joints With Pressure Members (AREA)
Abstract
The utility model discloses a natural gas pipe joint, which comprises an air inlet pipe, a pipe joint body, an air outlet pipe, a first nut and a second nut, wherein the outer wall of the air outlet end of the air inlet pipe is provided with a first flange; the outer wall of the air inlet end of the air outlet pipe is provided with a second flange; the two ends of the pipe joint body are symmetrically provided with a first connecting groove and a second connecting groove; a communicating cavity is arranged between the first connecting groove and the second connecting groove; the connecting end of the first connecting groove is provided with a first sealing washer; a second sealing washer is arranged at the connecting end of the second connecting groove; the outer walls of the first connecting groove and the second connecting groove are respectively provided with a first external thread and a second external thread; the inner walls of the first nut and the second nut are respectively provided with a first internal thread and a second internal thread corresponding to the first external thread and the second external thread; inner holes are formed in the middles of the first nut cap and the second nut cap; the diameter of the inner hole is the same as the outer diameters of the air inlet pipe and the air outlet pipe. The utility model discloses a convenient to detach and installation to the leakproofness of connecting is good, convenient to use.
Description
Technical Field
The utility model belongs to the technical field of natural gas line connecting device and specifically relates to a natural gas pipe connects is related to.
Background
The natural gas refers to all gases naturally existing in nature, including gases formed in various natural processes in an atmospheric space, a water space and a rock space, and includes oil field gas, gas field gas, mud volcanic gas, coal bed gas, biogenetic gas and the like.
At present, the transportation of natural gas is mainly with pipeline transportation, because need the connecting piece to be connected between pipeline and the pipeline, the joint body position of current coupling for gas generally adopts screw-thread fit, sealing performance is relatively poor, the gas leakage phenomenon can appear in long-time use, because natural gas has certain toxicity and very high flammability, pipeline leakage probably leads to the poisoning, environmental pollution or the condition such as explosion, so the sealed of coupling and junction between the pipeline is very important in the natural gas transportation, and the place that natural gas pipeline leaks most easily is exactly the pipeline kneck, so need provide a convenient to use, and the natural gas coupling that has high leakproofness is in order to solve prior art's problem.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a natural gas coupling convenient to install fast and dismantle to the leakproofness of connecting is good.
In order to solve the technical problem, the utility model discloses a technical scheme does: a natural gas pipe joint comprises an air inlet pipe, a pipe joint body, an air outlet pipe, a first nut and a second nut, wherein a first flange is arranged on the outer wall of the air outlet end of the air inlet pipe; the outer wall of the air inlet end of the air outlet pipe is provided with a second flange; the two ends of the pipe joint body are symmetrically provided with a first connecting groove and a second connecting groove; a communicating cavity is arranged between the first connecting groove and the second connecting groove; the connecting end of the first connecting groove is provided with a first sealing washer; a second sealing washer is arranged at the connecting end of the second connecting groove; the outer walls of the first connecting groove and the second connecting groove are respectively provided with a first external thread and a second external thread; the inner walls of the first nut and the second nut are respectively provided with a first internal thread and a second internal thread corresponding to the first external thread and the second external thread; inner holes are formed in the middles of the first screw cap and the second screw cap; the diameter of the inner hole is the same as the outer diameters of the air inlet pipe and the air outlet pipe.
Preferably, a first sealing ring is arranged at the joint of the first flange and the first connecting groove; and a second sealing ring is also arranged at the joint of the second flange and the second connecting groove.
Preferably, the communication chamber is hollow cylindrical.
Preferably, the inner diameters of the communication cavities are smaller than the inner diameters of the first connecting groove and the second connecting groove.
Preferably, the pipe joint body is made of stainless steel.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses in the in-process that uses, pass the hole of first nut with the intake pipe, through screwing up first nut on first connecting groove outer wall, the end of giving vent to anger of intake pipe just supports first seal ring, make first seal ring can firmly laminate with first connecting groove, avoid the gaseous leakage of junction of inlet end, and the same principle, pass the hole of second nut with the outlet duct, through screwing up the second nut on second connecting groove outer wall, the inlet end of outlet duct just supports second seal ring, make the second seal ring also can firmly laminate with the second connecting groove, avoid the gaseous leakage of junction of the end of giving vent to anger, and whole installation use process adopts the screw thread to dismantle connected mode, the installation is very convenient with the dismantlement, the leakproofness after the installation is better, effectively avoid gaseous leakage.
Drawings
Fig. 1 is a schematic structural diagram of a natural gas pipe joint of the present invention.
Detailed Description
The following describes the present invention with reference to the accompanying drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features related to the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
As shown in fig. 1, the natural gas pipe joint of the present invention specifically includes an air inlet pipe 1, a pipe joint body 2, an air outlet pipe 3, a first nut 4 and a second nut 5, wherein the pipe joint body 2 is made of stainless steel, the stainless steel has the advantages of hard material, long service life, etc., of course, plastic material can be selected according to the requirement, and the outer wall of the air outlet end of the air inlet pipe 1 is provided with a first flange 11; the outer wall of the air inlet end of the air outlet pipe 3 is provided with a second flange 31; the two ends of the pipe joint body 2 are symmetrically provided with a first connecting groove 21 and a second connecting groove 22; a communication cavity 23 is arranged between the first connecting groove 21 and the second connecting groove 22; the connecting end of the first connecting groove 21 is provided with a first sealing washer 6; the connecting end of the second connecting groove 22 is provided with a second sealing gasket 7, wherein the first sealing gasket 6 and the second sealing gasket 7 are made of soft rubber, so that the sealing performance is better; the outer walls of the first connecting groove 21 and the second connecting groove 22 are respectively provided with a first external thread and a second external thread (not marked in the figure); the inner walls of the first nut 4 and the second nut 5 are respectively provided with a first internal thread and a second internal thread (which are not marked in the figure) corresponding to the first external thread and the second external thread; inner holes are formed in the middles of the first screw cap 4 and the second screw cap 5; the diameter of the inner hole is the same as the outer diameters of the air inlet pipe 1 and the air outlet pipe 3.
The utility model discloses specific use as follows: when a pipeline needs to be connected, the air inlet pipe 1 penetrates through the inner hole of the first nut 4, the first nut 4 is screwed on the outer wall of the first connecting groove 21, the air outlet end of the air inlet pipe 1 just props against the first sealing washer 6, so that the first sealing ring 6 can be firmly attached to the first connecting groove 21 to avoid the leakage of gas at the joint of the gas inlet end, the gas outlet pipe 3 penetrates through the inner hole of the second screw cap 5 at the other end, by screwing the second nut 5 onto the outer wall of the second connecting groove 22, the air inlet end of the air outlet pipe 3 just abuts against the second sealing washer 7, so that the second sealing ring 7 can be firmly attached to the second connecting groove 22, the gas leakage at the joint of the gas outlet end is avoided, and whole installation use adopts the screw thread to dismantle connected mode, and the installation is very convenient with the dismantlement, and the leakproofness after the installation is better, effectively avoids gaseous leakage.
In order to better ensure the sealing, a first sealing ring 8 is arranged at the joint of the first flange 11 and the first connecting groove 21; the second sealing ring 9 is also arranged at the joint of the second flange 31 and the second connecting groove 22, and when the first nut 4 and the second nut 5 are screwed down, the first flange 11 and the second flange 31 just press the first sealing ring 8 and the second sealing ring 9 respectively, so that the sealing performance of the whole pipe joint is greatly enhanced, and the integral sealing performance is very good.
The utility model discloses a intercommunication chamber 23 is hollow circular cylinder shape, and in order to guarantee the leakproofness, the internal diameter of intercommunication chamber 23 all is less than the internal diameter of first spread groove 21 and second spread groove 22. This enables the first and second sealing gaskets 6, 7 to better seal the outlet, and the sealing is greatly enhanced.
Finally, it should be noted that the contents not described in detail in the specification belong to the prior art known to those skilled in the art, and those skilled in the art can implement the contents without creative efforts, so that the details are not described herein.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principles and spirit of the invention, and the scope of the invention is to be accorded the full scope of the claims.
Claims (5)
1. A natural gas pipe joint comprises an air inlet pipe (1), a pipe joint body (2), an air outlet pipe (3), a first nut (4) and a second nut (5), and is characterized in that a first flange (11) is arranged on the outer wall of the air outlet end of the air inlet pipe (1); a second flange (31) is arranged on the outer wall of the air inlet end of the air outlet pipe (3); a first connecting groove (21) and a second connecting groove (22) are symmetrically arranged at two ends of the pipe joint body (2); a communication cavity (23) is arranged between the first connecting groove (21) and the second connecting groove (22); a first sealing washer (6) is arranged at the connecting end of the first connecting groove (21); a second sealing washer (7) is arranged at the connecting end of the second connecting groove (22); the outer walls of the first connecting groove (21) and the second connecting groove (22) are respectively provided with a first external thread and a second external thread; the inner walls of the first nut (4) and the second nut (5) are respectively provided with a first internal thread and a second internal thread corresponding to the first external thread and the second external thread; inner holes are formed in the middles of the first screw cap (4) and the second screw cap (5); the diameter of the inner hole is the same as the outer diameters of the air inlet pipe (1) and the air outlet pipe (3).
2. The natural gas pipe joint according to claim 1, wherein a first sealing ring (8) is provided at a junction of the first flange (11) and the first connection groove (21); and a second sealing ring (9) is also arranged at the joint of the second flange (31) and the second connecting groove (22).
3. The natural gas pipe joint according to claim 1, wherein the communication chamber (23) is hollow cylindrical.
4. The natural gas pipe joint according to claim 1, wherein the communication chamber (23) has an inner diameter smaller than that of each of the first connection groove (21) and the second connection groove (22).
5. The natural gas pipe joint according to claim 1, wherein the joint body (2) is made of stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921742225.9U CN211550808U (en) | 2019-10-17 | 2019-10-17 | Natural gas pipe joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921742225.9U CN211550808U (en) | 2019-10-17 | 2019-10-17 | Natural gas pipe joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211550808U true CN211550808U (en) | 2020-09-22 |
Family
ID=72498921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921742225.9U Expired - Fee Related CN211550808U (en) | 2019-10-17 | 2019-10-17 | Natural gas pipe joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211550808U (en) |
-
2019
- 2019-10-17 CN CN201921742225.9U patent/CN211550808U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203927135U (en) | A kind of corrugated stainless steel tubing rapid pipe joint | |
| CN216158522U (en) | Pipeline leakage-proof structure | |
| CN209959960U (en) | Liquefied gas safety valve convenient to dismantle | |
| CN211550808U (en) | Natural gas pipe joint | |
| CN204879152U (en) | Gas pipe of belt lacing | |
| CN204554170U (en) | A kind of flexible pipe and hard tube of making carries out the structure be connected fast | |
| CN202152893U (en) | Joint convenient for quick assembling and disassembling | |
| CN205278627U (en) | Soft joint of rubber | |
| CN201715154U (en) | Special joint applied on fuel gas corrugated flexible pipe | |
| CN214947062U (en) | Double-thread connection round steel pipe | |
| CN204254108U (en) | Metal roof means of press seals type quick joint of corrugated pipe | |
| CN211039977U (en) | Metal hose connecting net sleeve with good sealing performance | |
| CN201502816U (en) | Novel air pipe connector | |
| CN203517055U (en) | Taper thread stainless steel tube | |
| CN204692849U (en) | A kind of bellows Quick connection part | |
| CN203147131U (en) | Four-way pipe connector with inner threads | |
| CN221170850U (en) | Air belt connector capable of exhausting air | |
| CN201297467Y (en) | Quick plug pipeline joint | |
| CN205136870U (en) | Fire oil pipe connection structure | |
| CN203868588U (en) | Pipeline leakage detecting sealing device | |
| CN211175853U (en) | Obtuse angle joint for high-temperature hose of automobile | |
| CN205534699U (en) | Circumscribed buckle structure | |
| CN204692827U (en) | Combustion gas polyethylene pipe | |
| CN220600782U (en) | Clutch booster gear-shifting control valve sealing structure | |
| CN202501151U (en) | Fuel gas pipeline connection system |
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: 20200922 Termination date: 20201017 |