CN204025736U - A kind of PE ball valve for gas pipeline - Google Patents
A kind of PE ball valve for gas pipeline Download PDFInfo
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- CN204025736U CN204025736U CN201420467431.4U CN201420467431U CN204025736U CN 204025736 U CN204025736 U CN 204025736U CN 201420467431 U CN201420467431 U CN 201420467431U CN 204025736 U CN204025736 U CN 204025736U
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- seal ring
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- support seal
- ball valve
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Abstract
The utility model belongs to combustion gas transportation art, particularly a kind of PE ball valve for gas pipeline.A kind of PE ball valve for gas ductwork, comprise valve body, spool, reducing, support, support seal ring, reverse pivot pin, reverse pivot pin seal ring and spanner cap, valve inner is provided with spool, between valve body and reducing, be provided with support, between support and reducing, be provided with support seal ring, spool top is provided with torsion pivot pin, reverse pivot pin and connecting spanner cap, between spool and torsion pivot pin, be provided with and reverse pivot pin seal ring, support and the support seal ring middle part of unifying side that matches is provided with a groove, and reducing and the support seal ring middle part of unifying side that matches is provided with a groove.Compared to existing technology, when the support seal ring of the PE ball valve that gas ductwork of the present utility model is used is squeezed, support seal ring is collapsible in rack groove and reducing groove; When support seal ring is not or not the time being squeezed, support seal ring can freely eject again from rack groove and reducing groove.
Description
Technical field
The utility model belongs to combustion gas transportation art, particularly a kind of PE ball valve for gas ductwork.
Background technique
Along with a large amount of uses of PE (polyethylene) pipeline in gas supply pipe net, the demand of PE ball valve increases day by day, but the PE ball valve that sell market at present has the following disadvantages:
The PE ball valve that existing gas ductwork is used, support seal ring middle part is fixed by support and reducing inclined-plane.When PE ball valve is closed, support seal ring middle part needs to overcome support and reducing bevel friction power moves laterally; When PE ball valve is opened, support seal ring middle part need to overcome support and reducing bevel friction power medial movement equally, and while causing PE ball valve to open and close, moment of torsion is large, and reduce working life.
Model utility content
Goal of the invention: the problem that the utility model exists for above-mentioned prior art is made improvement, and the utility model provides a kind of PE ball valve for gas ductwork.
Technological scheme: a kind of PE ball valve for gas ductwork, comprise valve body, spool, reducing, support, support seal ring, reverse pivot pin, reverse pivot pin seal ring and spanner cap, described valve inner is provided with spool, between described valve body and described reducing, be provided with described support, between described support and described reducing, be provided with described support seal ring, described spool top is provided with described torsion pivot pin, described torsion pivot pin is connecting described spanner cap, between described spool and described torsion pivot pin, be provided with and reverse pivot pin seal ring, described support and the described support seal ring middle part of unifying side that matches is provided with a groove, described reducing and the described support seal ring middle part of unifying side that matches is provided with a groove.
As a kind of preferred version of a kind of PE ball valve for gas ductwork of the present utility model, described support seal ring is annular seal circle, by described support seal ring axis radially described support seal ring is cut open with respect to described support seal ring, described support seal ring cross section is similar to T shape
The cavity forming between described support and described reducing matches with described support seal ring.
As a kind of preferred version of a kind of PE ball valve for gas ductwork of the present utility model, the both sides on the top, cross section of described support seal ring are provided with bevelling, and the angle of described bevelling is 30 °～60 °.
As a kind of preferred version of a kind of PE ball valve for gas ductwork of the present utility model, the both sides, intermediate portion, cross section of described support seal ring are oblique line, bottom, described cross section is large R shape cambered surface, and described large R shape cambered surface intermediate portion is smoothly connected with protruding laterally little R cambered surface.
As a kind of preferred version of a kind of PE ball valve for gas ductwork of the present utility model, described support seal ring is to adopt nitrile butadiene rubber or ethylene propylene diene rubber to make.The seal ring that adopts nitrile butadiene rubber or ethylene propylene diene rubber to make, has strengthened support seal ring elasticity and sealability.
As a kind of preferred version of a kind of PE ball valve for gas ductwork of the present utility model, described support and intermediate portion, described support seal ring cooperation place are oblique line.
As a kind of preferred version of a kind of PE ball valve for gas ductwork of the present utility model, described reducing and intermediate portion, support seal ring cooperation place are oblique line.
As a kind of preferred version of a kind of PE ball valve for gas ductwork of the present utility model, described in cooperation place, groove is provided with screens outside described support and described support seal ring.
As a kind of preferred version of a kind of PE ball valve for gas ductwork of the present utility model, described in cooperation place, groove is provided with screens outside described reducing and described support seal ring.
When a kind of PE ball valve for gas ductwork of the present utility model carries out closing operation: PE ball valve, in opening state, inserts spanner cap, clockwise direction 90-degree rotation by key (or spanner);
When a kind of PE ball valve for gas ductwork of the present utility model carries out open operation: PE ball valve, in closed condition, inserts spanner cap by key (or spanner), counterclockwise 90-degree rotation.
Beneficial effect: the PE ball valve for gas ductwork that the utility model provides has following beneficial effect: compared to existing technology, the PE ball valve that gas ductwork described in the utility model is used, while having the PE of keying ball valve, moment of torsion is low, the advantage such as good sealing effect and long service life, this is while being squeezed due to support seal ring, and support seal ring may be collapsed in rack groove and reducing groove; When support seal ring is not or not the time being squeezed, support seal ring can freely eject again from rack groove and reducing groove, has avoided seal ring because the risk that excessive compression lost efficacy.
Brief description of the drawings
Fig. 1 is the PE ball valve longitudinal sectional view described in the utility model embodiment
Fig. 2 is P place partial enlarged view in Fig. 1
Fig. 3 is the partial view of Fig. 2 medium-height trestle
Fig. 4 is the partial view of reducing in Fig. 2
Fig. 5 is the partial view of Fig. 2 medium-height trestle seal ring
Wherein:
1-valve body 2-spool
The screens of 3-reducing 3a-reducing
The intermediate portion of the oblique line 3c-reducing oblique line of 3b-reducing
The circular arc 4-support of 3d-reducing groove
The oblique line of the screens 4b-support of 4a-support
The circular arc of the intermediate portion 4d-rack groove of 4c-support oblique line
The inner side oblique line of 5-support seal ring 5a-support seal ring
The oblique line 5c-bevelling, outside of 5b-support seal ring
The little R shape of the large R shape of 5e-cambered surface 5f-cambered surface
6-reverses pivot pin 7-and reverses pivot pin seal ring
8-spanner cap
Embodiment:
In order to make the purpose of this utility model, technological scheme and advantage are clearer, followingly in connection with accompanying drawing, model utility mode of execution are described in further detail.
For sake of convenience, hereinafter alleged " on " D score " left side " " right side " is consistent with the direction up and down in accompanying drawing, but structure of the present utility model is not provided constraints.
Specific embodiment 1
As shown in Figure 1, the PE ball valve that a kind of gas ductwork is used, comprise valve body 1, spool 2, reducing 3, support 4, support seal ring 5, reverse pivot pin 6, reverse pivot pin seal ring 7 and spanner cap 8, valve body 1 inside is provided with spool 2, between valve body 1 and reducing 3, be provided with support 4, between support 4 and reducing 3, be provided with support seal ring 5, spool 2 tops are provided with reverses pivot pin 6, reverse pivot pin 6 and connecting spanner cap 8, between spool 2 and torsion pivot pin 6, be provided with and reverse pivot pin seal ring 7, support 4 and support seal ring 5 middle part of unifying side that matches is provided with a groove, reducing 3 and support seal ring 5 middle part of unifying side that matches is provided with a groove.
In the present embodiment, as shown in Figure 5, support seal ring 5 is annular seal circle, by support seal ring 5 axis radially support seal ring 5 is cut open with respect to support seal ring 5, support seal ring 5 cross sections are similar to T shape, and T section intermediate portion arranged on left and right sides is oblique line 5a and 5b
The cavity forming between support 4 and reducing 3 matches with support seal ring 5, and the cavity forming between support 4 and reducing 3 matches with shape, the size of support seal ring 5.
In the present embodiment, as shown in Figure 5, the both sides of the cross section upper right quarter of support seal ring 5 are provided with bevelling 5c, and the angle of bevelling 5c is 45 °.
In the present embodiment, as shown in Figure 5, the both sides, intermediate portion, cross section of support seal ring 5 are oblique line, and bottom, cross section is large R shape cambered surface 5e, and large R shape cambered surface 5e intermediate portion is smoothly connected with protruding laterally little R cambered surface 5f.
In the present embodiment, support seal ring 5 is to adopt nitrile butadiene rubber to make.The seal ring that adopts nitrile butadiene rubber to make, has strengthened support seal ring elasticity and sealability.
In the present embodiment, as shown in Figure 3, support 4 is oblique line 4b with support seal ring 5 intermediate portions, cooperation place, and oblique line intermediate portion 4c can smoothly contact with the circular arc 4d of groove.
In the present embodiment, as shown in Figure 4, reducing 3 is oblique line 3b with support seal ring 5 intermediate portions, cooperation place, and oblique line intermediate portion 3c can smoothly contact with the circular arc 3d of groove.
In the present embodiment, as shown in Figure 3, support 4 is provided with screens 3a with support seal ring 5 cooperation place, outside grooves.
In the present embodiment, as shown in Figure 4, reducing 3 is provided with screens 4a with support seal ring 5 cooperation place, outside grooves.
The utility model embodiment working procedure:
Closing operation: PE ball valve, in opening state, inserts spanner cap 8 by key (or spanner), clockwise direction 90-degree rotation,
Open operation: PE ball valve, in closed condition, inserts spanner cap 8 by key (or spanner), counterclockwise 90-degree rotation.
Specific embodiment 2
Roughly the same with specific embodiment 1, difference is only:
1, support seal ring 5 is to adopt ethylene propylene diene rubber to make;
2, the both sides of the cross section upper right quarter of support seal ring 5 are provided with bevelling 5c, and the angle of bevelling 5c is 60 °.
Specific embodiment 3
Roughly the same with specific embodiment 1, difference is only:
1, support seal ring 5 is to adopt ethylene propylene diene rubber to make;
2, the both sides of the cross section upper right quarter of support seal ring 5 are provided with bevelling 5c, and the angle of bevelling 5c is 30 °.
By reference to the accompanying drawings mode of execution of the present utility model is described in detail above.But the utility model is not limited to above-mentioned mode of execution, in the ken possessing at affiliated technical field those of ordinary skill, can also under the prerequisite that does not depart from the utility model aim, make a variety of changes.
Claims (8)
1. the PE ball valve for gas ductwork, it is characterized in that, comprise valve body, spool, reducing, support, support seal ring, reverse pivot pin, reverse pivot pin seal ring and spanner cap, described valve inner is provided with spool, between described valve body and described reducing, be provided with described support, between described support and described reducing, be provided with described support seal ring, described spool top is provided with described torsion pivot pin, described torsion pivot pin is connecting described spanner cap, between described spool and described torsion pivot pin, be provided with and reverse pivot pin seal ring, described support and the described support seal ring middle part of unifying side that matches is provided with a groove, described reducing and the described support seal ring middle part of unifying side that matches is provided with a groove.
2. a kind of PE ball valve for gas ductwork as claimed in claim 1, it is characterized in that, described support seal ring is annular seal circle, by described support seal ring axis radially described support seal ring is cut open with respect to described support seal ring, described support seal ring cross section is similar to T shape
The cavity forming between described support and described reducing matches with described support seal ring.
3. a kind of PE ball valve for gas ductwork as claimed in claim 2, is characterized in that, the both sides on the top, cross section of described support seal ring are provided with bevelling, and the angle of described bevelling is 30 °～60 °.
4. a kind of PE ball valve for gas ductwork as claimed in claim 2, it is characterized in that, the both sides, intermediate portion, cross section of described support seal ring are oblique line, and bottom, described cross section is large R shape cambered surface, and described large R shape cambered surface intermediate portion is smoothly connected with protruding laterally little R cambered surface.
5. a kind of PE ball valve for gas ductwork as claimed in claim 1, is characterized in that, described support and intermediate portion, described support seal ring cooperation place are oblique line.
6. a kind of PE ball valve for gas ductwork as claimed in claim 1, is characterized in that, described reducing and intermediate portion, support seal ring cooperation place are oblique line.
7. a kind of PE ball valve for gas ductwork as claimed in claim 1, is characterized in that, outside described support and described support seal ring described in cooperation place groove with screens.
8. a kind of PE ball valve for gas ductwork as claimed in claim 1, is characterized in that, outside described reducing and described support seal ring described in cooperation place groove with screens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420467431.4U CN204025736U (en) | 2014-08-19 | 2014-08-19 | A kind of PE ball valve for gas pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420467431.4U CN204025736U (en) | 2014-08-19 | 2014-08-19 | A kind of PE ball valve for gas pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204025736U true CN204025736U (en) | 2014-12-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420467431.4U Active CN204025736U (en) | 2014-08-19 | 2014-08-19 | A kind of PE ball valve for gas pipeline |
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| CN (1) | CN204025736U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104180009A (en) * | 2014-08-19 | 2014-12-03 | 北京京燃凌云燃气设备有限公司 | PE (poly ethylene) ball valve for gas pipeline network |
-
2014
- 2014-08-19 CN CN201420467431.4U patent/CN204025736U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104180009A (en) * | 2014-08-19 | 2014-12-03 | 北京京燃凌云燃气设备有限公司 | PE (poly ethylene) ball valve for gas pipeline network |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |