CN204239922U - A kind of ground lower contact of applying in fuel gas transportation pipeline - Google Patents
A kind of ground lower contact of applying in fuel gas transportation pipeline Download PDFInfo
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- CN204239922U CN204239922U CN201420737997.4U CN201420737997U CN204239922U CN 204239922 U CN204239922 U CN 204239922U CN 201420737997 U CN201420737997 U CN 201420737997U CN 204239922 U CN204239922 U CN 204239922U
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Abstract
The utility model discloses a kind of ground lower contact of applying in fuel gas transportation pipeline, comprise main pipe, inner support sleeve pipe and gland, main pipe two ends are provided with screw thread, one end of gland be provided with screw thread and and be threaded connection mode between main pipe and fix, the bore of the other end of gland is less than the bore of main pipe, the inwall of main pipe is provided with snap ring, snap ring is positioned on the inwall of main pipe, inner support pipe box is arranged in main pipe, predetermined gap is there is between inner support pipe box and main pipe's inwall, main pipe be provided with the tapped hole for encapsulating and sealed by plug.The utility model can be good at moulding with steel pipe, steel by screw thread and changes pipe fitting and be connected.Simultaneously steel mould conversion pipe fitting with after upper connection is connected, then fix steel further by the mode of encapsulating and mould conversion pipe fitting.In addition, encapsulating is moulded conversion pipe fitting to steel and is also served protective action, when steel mould conversion pipe fitting be used in comparatively also be not easy under rugged environment damaged.
Description
Technical field
The utility model relates to fuel gas transportation pipeline technology, especially relates to a kind of ground lower contact of applying in fuel gas transportation pipeline.
Background technique
In gas pipeline and water supply line course of conveying, steel is moulded conversion pipe fitting and is used widely.Country's correlation engineering specification regulation, plastic pipe can not direct access user end.Therefore, when after polyvinyl fuel gas pipeline pressure regulation, to register one's residence and the steel pipe of having ventilated and polyethylene pipe grid-connected connection have all needed steel to mould to change pipe fitting to have come.
Steel is moulded conversion pipe fitting and is mostly embedded in underground use, and polyethylene gas pipe produces wall thickness because being squeezed in the connecting part with high-speed transitions part thinning, causes steel to mould the axial pulling capacity of conversion pipe fitting and declines.This causes when comparatively badly conversion pipe fitting moulded by lower use steel to environmental conditions, and its tensility and sealability cannot ensure, make the gas pipeline system being embedded in underground there is potential safety hazard.It is therefore existing that to mould the technical requirements of conversion pipe fitting to the steel of fuel gas transportation pipeline also more and more higher.Now inventing a kind of ground lower contact of applying in fuel gas transportation pipeline, moulding conversion pipe fitting and polyethylene pipe for connecting steel.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of ground lower contact of applying in fuel gas transportation pipeline.
The utility model solves the problems of the technologies described above adopted technological scheme: a kind of ground lower contact of applying in fuel gas transportation pipeline, comprise main pipe, inner support sleeve pipe and gland, described main pipe two ends are provided with screw thread, one end of described gland be provided with screw thread and and be threaded connection mode between main pipe and fix, the bore of the other end of described gland is less than the bore of main pipe, the inwall of described main pipe is provided with snap ring, described snap ring is positioned on the inwall of main pipe, described inner support pipe box is arranged in main pipe, predetermined gap is there is between described inner support pipe box and main pipe's inwall, described main pipe is provided with the tapped hole for encapsulating and is sealed by plug,
Polyethylene gas pipe and main pipe one end are fixed with thread connecting mode, steel is moulded conversion pipe fitting and to be inserted in main pipe by the other end of main pipe and by gland, steel is moulded conversion pipe fitting and be stuck in main pipe, steel is moulded conversion pipe fitting and is inserted part in main pipe between inner support sleeve pipe and main pipe's inwall, now open plug and carry out encapsulating by tapped hole in main pipe, colloid is full of after the gap of changing between pipe fitting and main pipe moulded by steel and screws plug.
One end of described main pipe is provided with O shape circle, described O shape circle is positioned at main pipe, one end of inner support pipe box is provided with limited ring, described limited ring diameter is greater than the diameter of inner support pipe box, described limited ring is between gland and snap ring, be provided with the fastening fixed ring of dense block between described limited ring and snap ring, inner support pipe box is clamped in main pipe by the fastening fixed ring of described dense block.After conversion pipe fitting insertion main pipe moulded by steel, the fastening fixed ring of dense block is moulded conversion pipe fitting to steel simultaneously and is played fixation, makes it not easily relative position occur.
Be provided with transition gland ring in described main pipe, described transition gland ring is arranged between O shape circle and the fastening fixed ring of dense block, and described transition gland ring is corresponding with described limited ring.Transition gland ring, between right body and the fastening fixed ring of dense block, plays the effect of a buffering, and simultaneously corresponding with limited ring, can install inner support pipeline better.
Be provided with metallic packing ring between described main pipe and gland, described metallic packing ring is close on the sidewall of main pipe, is provided with screens ring in described gland, is provided with pad between described screens ring and metallic packing ring.Pad, between metallic packing ring and screens ring, plays a fixing effect with cushioning.
The inwall of the left end of main pipe is provided with the screw thread be fixedly connected with polyethylene gas pipe, the outer wall of the right-hand member of described main pipe is provided with the screw thread be fixedly connected with gland.The two ends, left and right of main pipe are provided with screw thread, for being fixedly connected with gland and conversion pipe fitting moulded by steel.
The madial wall of described gland left end is provided with screw thread, and one end of gland is fixed in the mode be threaded with the right-hand member of main pipe.Gland is connected with main pipe, and steel can be moulded conversion pipe fitting be stuck in main pipe.
Compared with prior art, the utility model has the advantage of to mould to change at polyethylene gas pipe and steel and between pipe fitting, to be connected with ground lower contact, can be good at being connected with both by the screw thread at lower contact two ends, ground.Steel mould conversion pipe fitting with after lower contact is connected, then fix steel further by the mode of encapsulating and mould conversion pipe fitting.Meanwhile, encapsulating is moulded conversion pipe fitting to steel and is also served protective action, though steel mould conversion pipe fitting be used in comparatively also be not easy under rugged environment damaged.Reduce the technical requirements that conversion pipe fitting moulded by steel, making steel mould conversion pipe fitting can use under rugged environment.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, embodiment is described in further detail the utility model.
As shown in Figure 1: a kind of ground lower contact of applying in fuel gas transportation pipeline, comprise main pipe 5, interior support sleeve pipe 6 and gland 1, main pipe 5 two ends are provided with screw thread, one end of gland 1 be provided with screw thread and and be threaded connection mode between main pipe 5 and fix, the bore of the other end of gland 1 is less than the bore of main pipe 5, the inwall of main pipe 5 is provided with snap ring 11, snap ring 11 is positioned on the inwall of main pipe 5, interior support pipe box 6 is arranged in main pipe 5, predetermined gap is there is between interior support pipe box 6 and main pipe 5 inwall, main pipe 5 be provided with the tapped hole 12 for encapsulating and sealed by plug 10,
Polyethylene gas pipe and main pipe 5 one end are fixed with thread connecting mode, steel is moulded conversion pipe fitting and to be inserted in main pipe 5 by the other end of main pipe 5 and by gland 1, steel is moulded conversion pipe fitting and be stuck in main pipe 5, steel is moulded conversion pipe fitting and is inserted part in main pipe 5 between interior support sleeve pipe 6 and main pipe 5 inwall, now open plug 10 and carry out encapsulating by tapped hole 12 in main pipe 5, colloid is full of after the gap of changing between pipe fitting and main pipe 5 moulded by steel and screws plug 10.
One end of main pipe 5 is provided with O shape circle 9, O shape circle 9 is positioned at main pipe 5, one end of interior support pipe box 6 is provided with limited ring 13, limited ring 13 diameter is greater than the diameter of interior support pipe box 6, limited ring 13 is between gland 1 and snap ring 11, be provided with the fastening fixed ring 7 of dense block between limited ring 13 and snap ring 11, interior support pipe box 6 is clamped in main pipe 5 by the fastening fixed ring of dense block 7.Be provided with transition gland ring 8 in main pipe 5, transition gland ring 8 is arranged between O shape circle 9 and the fastening fixed ring 7 of dense block, and transition gland ring 8 is corresponding with limited ring 13.
Be provided with metallic packing ring 4 between main pipe 5 and gland 1, metallic packing ring 4 is close on the sidewall of main pipe 5, is provided with screens ring 2 in gland 1, is provided with pad 3 between screens ring 2 and metallic packing ring 4.The inwall of the left end of main pipe 5 is provided with the screw thread be fixedly connected with polyethylene gas pipe, the outer wall of the right-hand member of main pipe 5 is provided with the screw thread be fixedly connected with gland 1.The madial wall of gland 1 left end is provided with screw thread, and one end of gland 1 is fixed in the mode be threaded with the right-hand member of main pipe 5.
Claims (6)
1. a ground lower contact of applying in fuel gas transportation pipeline, it is characterized in that comprising main pipe, inner support sleeve pipe and gland, described main pipe two ends are provided with screw thread, one end of described gland be provided with screw thread and and be threaded connection mode between main pipe and fix, the bore of the other end of described gland is less than the bore of main pipe, the inwall of described main pipe is provided with snap ring, described snap ring is positioned on the inwall of main pipe, described inner support pipe box is arranged in main pipe, predetermined gap is there is between described inner support pipe box and main pipe's inwall, described main pipe is provided with the tapped hole for encapsulating and is sealed by plug,
Polyethylene gas pipe and main pipe one end are fixed with thread connecting mode, steel is moulded conversion pipe fitting and to be inserted in main pipe by the other end of main pipe and by gland, steel is moulded conversion pipe fitting and be stuck in main pipe, steel is moulded conversion pipe fitting and is inserted part in main pipe between inner support sleeve pipe and main pipe's inwall, now open plug and carry out encapsulating by tapped hole in main pipe, colloid is full of after the gap of changing between pipe fitting and main pipe moulded by steel and screws plug.
2. a kind of ground lower contact of applying in fuel gas transportation pipeline according to claim 1, it is characterized in that one end of described main pipe is provided with O shape circle, described O shape circle is positioned at main pipe, one end of inner support pipe box is provided with limited ring, described limited ring diameter is greater than the diameter of inner support pipe box, described limited ring is between gland and snap ring, be provided with the fastening fixed ring of dense block between described limited ring and snap ring, inner support pipe box is clamped in main pipe by the fastening fixed ring of described dense block.
3. a kind of ground lower contact of applying in fuel gas transportation pipeline according to claim 2, it is characterized in that being provided with transition gland ring in described main pipe, described transition gland ring is arranged between O shape circle and the fastening fixed ring of dense block, and described transition gland ring is corresponding with described limited ring.
4. a kind of ground lower contact of applying in fuel gas transportation pipeline according to claim 1, it is characterized in that being provided with metallic packing ring between described main pipe and gland, described metallic packing ring is close on the sidewall of main pipe, be provided with screens ring in described gland, between described screens ring and metallic packing ring, be provided with pad.
5. a kind of ground lower contact of applying in fuel gas transportation pipeline according to claim 1, the inwall that it is characterized in that the left end of main pipe is provided with the screw thread be fixedly connected with polyethylene gas pipe, the outer wall of the right-hand member of described main pipe is provided with the screw thread be fixedly connected with gland.
6. a kind of ground lower contact of applying in fuel gas transportation pipeline according to claim 5, it is characterized in that the madial wall of described gland left end is provided with screw thread, one end of gland is fixed in the mode be threaded with the right-hand member of main pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420737997.4U CN204239922U (en) | 2014-11-26 | 2014-11-26 | A kind of ground lower contact of applying in fuel gas transportation pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420737997.4U CN204239922U (en) | 2014-11-26 | 2014-11-26 | A kind of ground lower contact of applying in fuel gas transportation pipeline |
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| Publication Number | Publication Date |
|---|---|
| CN204239922U true CN204239922U (en) | 2015-04-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420737997.4U Active CN204239922U (en) | 2014-11-26 | 2014-11-26 | A kind of ground lower contact of applying in fuel gas transportation pipeline |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104455809A (en) * | 2014-11-26 | 2015-03-25 | 宁波志清实业有限公司 | Underground connector applied to fuel gas transmission pipeline |
-
2014
- 2014-11-26 CN CN201420737997.4U patent/CN204239922U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104455809A (en) * | 2014-11-26 | 2015-03-25 | 宁波志清实业有限公司 | Underground connector applied to fuel gas transmission pipeline |
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| GR01 | Patent grant |