CN102261531A - Gas screwed loose joint - Google Patents
Gas screwed loose joint Download PDFInfo
- Publication number
- CN102261531A CN102261531A CN2010101873897A CN201010187389A CN102261531A CN 102261531 A CN102261531 A CN 102261531A CN 2010101873897 A CN2010101873897 A CN 2010101873897A CN 201010187389 A CN201010187389 A CN 201010187389A CN 102261531 A CN102261531 A CN 102261531A
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- China
- Prior art keywords
- pipeline
- combustion gas
- upper shield
- silk mouth
- union
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Abstract
The invention discloses a gas screwed loose joint which is used for connecting a first pipeline with a second pipeline. The gas screwed loose join comprises a main body, a sleeve cover, a sealing ring and a flat washer, wherein the main body is tubular; the first pipeline is connected to one end of the main body; the second pipeline penetrates through the sleeve cover to be inserted to the other end of the main body, and the sleeve cover is connected with the main body; the sealing ring and the flat washer both are sleeved to the second pipeline; the sealing ring is located between the main body and the second pipeline; and the flat washer is located between the sealing ring and the sleeve cover. The gas screwed loose joint of the invention is convenient to mount, capable of effectively preventing occurrence of leakage accidents and suitable for conveying dry gas.
Description
Technical field
The present invention relates to the component in the gas distribution system, gas network, relate in particular to the union of a kind of combustion gas silk mouth.
Background technique
At present in gas distribution system, gas network, the section of tubing of bright arm is spliced and is adopted the long screw part on the ground, as shown in Figure 1, long screw part 13 is used to connect two pipelines 11 and 12 that need splice together, described long screw part 13 comprises connecting tube 131 and the sleeve pipe 132 that is enclosed within on the described connecting tube 131, one end outer wall of described connecting tube 131 is provided with outside thread, described sleeve pipe 132 is enclosed within the other end of described connecting tube 131, also be provided with outside thread 14 on the other end outer wall of this connecting tube 131, internal thread on this outside thread 14 and described sleeve pipe 132 inwalls is complementary, and described sleeve pipe 132 can rotate on described connecting tube 131 and rise or descend.During installation, earlier described connecting tube 131 is inserted in the described pipeline 12, described connecting tube 131 is tightened in rotation, finish being connected of described long screw part 13 and described pipeline 12, then described pipeline 11 is inserted in the described sleeve pipe 132, rotate up and tighten described pipeline 11, finish being connected of described long screw part 13 and described pipeline 11.
Adopt the long screw part pipeline of splicing that following shortcoming is arranged:
1, adopt the long screw part pipeline of splicing, outside thread 14 parts on connecting tube 131 outer walls are exposed outside, rot easily to damage to cause gas leakage;
2, adopt the long screw part pipeline of splicing, its Placement be that silk mouthful connects, the butter sealing, is not suitable for dried combustion gas, as rock gas, does not meet the development trend of use combustion gas;
3, in the repairing of the bright arm of combustion gas, two pipelines 11 and 12 will be changed simultaneously, and install inconvenient.
Summary of the invention
The object of the present invention is to provide the union of a kind of combustion gas silk mouth, easy for installation, can prevent effectively that the leakage accident from taking place, and is applicable to the conveying of doing combustion gas.
To achieve the above object, the invention provides the union of a kind of combustion gas silk mouth, be used to connect first pipeline and second pipeline, it is characterized in that, comprise body, upper shield, seal ring and plain washer; Described body in a tubular form; Described first pipeline is connected with an end of described body; Described second pipeline passes the other end that described upper shield inserts described body, and this upper shield is connected with described body; Described seal ring and plain washer all are enclosed within on described second pipeline, and described seal ring is between described body and described second pipeline, and described plain washer is between described seal ring and described upper shield.
The union of above-mentioned combustion gas silk mouth, wherein, the inwall of described body is provided with groove, and an O-ring seals is arranged in this groove, and this O-ring seals is between described body and described second pipeline.
The union of above-mentioned combustion gas silk mouth wherein, also comprises spring ring, and this spring ring is enclosed within on described second pipeline, between described plain washer and described upper shield.
The union of above-mentioned combustion gas silk mouth, wherein, described seal ring is trapezoidal seal ring.
The union of above-mentioned combustion gas silk mouth, wherein, an end of described inner body wall is provided with internal thread, and this internal thread is used for being connected with described first pipeline; The other end of described inner body wall is a chamfer surface, and the shape of this chamfer surface and the shape of described trapezoidal seal ring match; Described body is provided with outside thread with the outer wall of the end that described second pipeline is connected.
The union of above-mentioned combustion gas silk mouth, wherein, described cover is covered with a hole, and described second pipeline passes described upper shield by this hole; The inwall of described upper shield is provided with internal thread, and the outside thread of this internal thread and described body is complementary.
The union of above-mentioned combustion gas silk mouth, wherein, the outer wall of described body is provided with a plurality of mounting bars, and described a plurality of mounting bars surround annular, and are symmetrically distributed.
The union of above-mentioned combustion gas silk mouth, wherein, described body and upper shield adopt ductile cast iron material to make.
The union of above-mentioned combustion gas silk mouth wherein, is coated with the iron oxide red epoxy paint on the inwall of described body, be coated with acrylic acid double self-drying paint on the outer wall of described body.
The union of above-mentioned combustion gas silk mouth wherein, is coated with acrylic acid double self-drying paint on the outer surface of described upper shield.
Combustion gas silk mouth of the present invention union is connected in silk mouth mode with first pipeline, be connected in the sleeve mode with second pipeline, the sealing of employing rubber seal, be applicable to the conveying of doing combustion gas, and all there is not screw thread exposed outside on the outer wall of first pipeline and second pipeline, can not leak because of long-term corrosion, safe and reliable; Adopt trapezoidal seal ring and O-ring seals double seal measure, strengthened sealing, increased bearing capacity, and can compensate displacement, dislocation and deflection in described pipeline 52 certain limits; It is convenient that combustion gas silk mouth union of the present invention is installed, and in the bright arm repairing of combustion gas, do not need to change simultaneously first pipeline and second pipeline; The body length of body is longer, the two less pipelines of spacing that both can be used for splicing, and the two bigger pipelines of spacing that also can be used for splicing, use is flexible, applicability is strong; The outer surface of body and upper shield all scribbles lacquer, plays anticorrosion, antirust effect, and attractive in appearance; Plain washer can effectively prevent natural gas leaking; Spring ring can prevent effectively that upper shield from using the back loosening situation to occur for a long time.
Description of drawings
Combustion gas silk mouth of the present invention union is provided by following embodiment and accompanying drawing.
Fig. 1 is the splice schematic representation of pipeline of available technology adopting long screw part.
Fig. 2 is the sectional view of combustion gas silk mouth of the present invention union.
Fig. 3 is the sectional view of upper shield among the present invention.
Fig. 4 is the sectional view of body among the present invention.
Embodiment
Union is described in further detail to combustion gas silk mouth of the present invention below with reference to Fig. 2～Fig. 4.
Referring to Fig. 2, combustion gas silk mouth of the present invention union is used to connect two pipelines 51 and 52, and it comprises body 20, upper shield 30, trapezoidal seal ring 41, plain washer 42, O-ring seals 43 and spring ring 44;
Described body 20 in a tubular form;
Described pipeline 51 is connected with an end of described body 20;
Described pipeline 52 passes the other end that described upper shield 30 inserts described body 20, and this upper shield 30 is connected with described body 20;
Described trapezoidal seal ring 41 and O-ring seals 43 all are arranged between described body 20 and the described pipeline 52;
Described plain washer 42 and spring ring 44 are successively set between described trapezoidal seal ring 41 and the described upper shield 30.
Referring to Fig. 3, the central authorities of described upper shield 30 are provided with a hole 32, and described pipeline 52 passes described upper shield 30 by this hole 32;
The inwall of described upper shield 30 is provided with internal thread 31, and this internal thread 31 is used for being connected with described body 20.
The surface-coated of described upper shield 30 has acrylic acid double self-drying paint film, and this paint film is middle yellow, and the thickness of this paint film is more than or equal to 30um.
Can play corrosion protection, antirust effect at the surface-coated acrylic acid double self-drying paint film of described upper shield 30, and attractive in appearance.
Described upper shield 30 adopts ductile cast iron material to make.
Referring to Fig. 4, described body 20 in a tubular form, the inwall of these body 20 1 ends is provided with internal thread 22;
The outer wall of described pipeline 51 is provided with outside thread, the internal thread 22 of described body 20 is complementary with the outside thread of described pipeline 51, internal thread 22 by described body 20 and the outside thread of described pipeline 51 are realized being connected of described body 20 and described pipeline 51, and an end of promptly described body 20 is connected in silk mouth mode with described pipeline 51;
The inwall of described body 20 the other ends is a chamfer surface 24, the shape of the shape of this chamfer surface 24 and described trapezoidal seal ring 41 matches, described pipeline 52 inserts described body 20 by this end of described body 20, and described trapezoidal seal ring 41 is between the outer wall of this chamfer surface 24 and described pipeline 52;
Described body 20 is provided with outside thread 21 with the outer wall of the end that described pipeline 52 is connected, this outside thread 21 is complementary with the internal thread 31 of described upper shield 30, by outside thread 21 and the described body 20 of internal thread 31 realizations of described upper shield 30 and being connected of described upper shield 30 of described body 20;
Described body 20 is connected in the sleeve mode with described pipeline 52;
The inwall of described body 20 is provided with a groove 23, and this groove 23 is near described chamfer surface 24, and described O-ring seals 43 is arranged in this groove 23;
The outer wall of described body 20 is provided with a plurality of mounting bars 25, and described a plurality of mounting bars 25 surround annular, and is symmetrically distributed, and in the present embodiment, 4 mounting bars 25 is arranged on the outer wall of described body 20.
Be coated with iron oxide red epoxy paint film on the inwall of described body 20, the thickness of this paint film is coated with acrylic acid double self-drying paint film more than or equal to 30um on the outer wall of described body 20, and this paint film is middle yellow, and the thickness of this paint film is more than or equal to 30um.
Described body 20 adopts ductile cast iron material to make.
On the inwall of described body 20, apply iron oxide red epoxy paint film, on the outer wall of described body 20, apply acrylic acid double self-drying paint film and can play corrosion protection, antirust effect, and attractive in appearance.
The body length of described body 20 can design longlyer, along with the environment difference of using combustion gas silk mouth of the present invention union, described pipeline 52 inserts the degree of depth difference of described body 20, spacing between described pipeline 51 and described pipeline 52 hour, it is darker that described pipeline 52 inserts described body 20, when the spacing between described pipeline 51 and the described pipeline 52 is big, it is more shallow that described pipeline 52 inserts described body 20, that is to say, the combustion gas silk mouth of the present invention union two less pipelines of spacing that can be used for splicing, the two bigger pipelines of spacing that also can be used for splicing use flexibly, applicability is strong.
Described plain washer 42 is an annular, and this plain washer 42 is enclosed within on the described pipeline 52, and between described trapezoidal seal ring 41 and described spring ring 44, the effect of described plain washer 42 is to prevent natural gas leaking.
Described spring ring 44 is the cyclic spring eyelet, and this spring ring 44 is enclosed within on the described pipeline 52, and between described plain washer 42 and described upper shield 30, the effect of described spring ring 44 is to prevent that described upper shield 30 from becoming flexible.
Described trapezoidal seal ring 41, plain washer 42 and O-ring seals 43 all adopt combustion gas to make with rubber material.
When using combustion gas silk mouth of the present invention union to splice described pipeline 51 and described pipeline 52, earlier described body 20 is enclosed within on the described pipeline 51, internal thread 22 by described body 20 is tightened in described body 20 on the described pipeline 51, when described body 20 is tightened in rotation, spanner is stuck on the mounting bar 25 on described body 20 outer walls, it is stressed that described mounting bar 25 had both helped described body 20, can prevent that again acrylic acid double self-drying paint film on described body 20 outer walls is subjected to the spanner wearing and tearing and comes off, again with described upper shield 30, spring ring 44, plain washer 42 and trapezoidal seal ring 41 are set on the described pipeline 52 successively, coat the soap solution sufficient lubrication in the joint of described pipeline 52, then described pipeline 52 is inserted in the described body 20, tighten described upper shield 30, finish being connected of described pipeline 51 and described pipeline 52.
It is convenient that combustion gas silk mouth union of the present invention is installed, and in the bright arm repairing of combustion gas, do not need to change simultaneously described pipeline 51 and described pipeline 52.
The sealing principle of combustion gas silk mouth of the present invention union is: described O-ring seals 43 is the interference sealing; When tightening described upper shield 30, described trapezoidal seal ring 41 is under the extruding of described upper shield 30, rely on the mutual gradient between the chamfer surface 24 of itself and described body 20, the periphery that is pressed on described pipeline 52 seals, be that the double seal measure is adopted in combustion gas silk mouth union of the present invention, strengthen sealing, increased bearing capacity, and can compensate displacement, dislocation and deflection in described pipeline 52 certain limits.
Combustion gas silk mouth of the present invention union is connected in silk mouth mode with described pipeline 51, be connected in the sleeve mode with described pipeline 52, the sealing of employing rubber seal, be applicable to the conveying of doing combustion gas, and all there is not screw thread exposed outside on the outer wall of described pipeline 51 and described pipeline 52, can not leak because of long-term corrosion, safe and reliable.
Claims (10)
1. combustion gas silk mouth union is used to connect first pipeline and second pipeline, it is characterized in that, comprises body, upper shield, seal ring and plain washer;
Described body in a tubular form;
Described first pipeline is connected with an end of described body;
Described second pipeline passes the other end that described upper shield inserts described body, and this upper shield is connected with described body;
Described seal ring and plain washer all are enclosed within on described second pipeline, and described seal ring is between described body and described second pipeline, and described plain washer is between described seal ring and described upper shield.
2. combustion gas silk mouth as claimed in claim 1 union is characterized in that the inwall of described body is provided with groove, and an O-ring seals is arranged in this groove, and this O-ring seals is between described body and described second pipeline.
3. combustion gas silk mouth as claimed in claim 1 union is characterized in that, also comprises spring ring, and this spring ring is enclosed within on described second pipeline, between described plain washer and described upper shield.
4. as claim 1,2 or 3 described combustion gas silk mouth unions, it is characterized in that described seal ring is trapezoidal seal ring.
5. combustion gas silk mouth as claimed in claim 4 union is characterized in that an end of described inner body wall is provided with internal thread, and this internal thread is used for being connected with described first pipeline; The other end of described inner body wall is a chamfer surface, and the shape of this chamfer surface and the shape of described trapezoidal seal ring match; Described body is provided with outside thread with the outer wall of the end that described second pipeline is connected.
6. combustion gas silk mouth as claimed in claim 5 union is characterized in that described cover is covered with a hole, and described second pipeline passes described upper shield by this hole; The inwall of described upper shield is provided with internal thread, and the outside thread of this internal thread and described body is complementary.
7. as claim 1,2 or 3 described combustion gas silk mouth unions, it is characterized in that the outer wall of described body is provided with a plurality of mounting bars, described a plurality of mounting bars surround annular, and are symmetrically distributed.
8. combustion gas silk mouth as claimed in claim 1 union is characterized in that, described body and upper shield adopt ductile cast iron material to make.
9. as claim 1 or 8 described combustion gas silk mouth unions, it is characterized in that, be coated with the iron oxide red epoxy paint on the inwall of described body, be coated with acrylic acid double self-drying paint on the outer wall of described body.
10. as claim 1 or 8 described combustion gas silk mouth unions, it is characterized in that, be coated with acrylic acid double self-drying paint on the outer surface of described upper shield.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101873897A CN102261531A (en) | 2010-05-28 | 2010-05-28 | Gas screwed loose joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101873897A CN102261531A (en) | 2010-05-28 | 2010-05-28 | Gas screwed loose joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102261531A true CN102261531A (en) | 2011-11-30 |
Family
ID=45008287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101873897A Pending CN102261531A (en) | 2010-05-28 | 2010-05-28 | Gas screwed loose joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102261531A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2365495Y (en) * | 1998-10-27 | 2000-02-23 | 王华胜 | Cutting sleeve type pipe coupling sealed with rubber sealing ring |
| CN2418336Y (en) * | 2000-03-15 | 2001-02-07 | 罗显顺 | Fastening-sleeve type connector for pipeline |
| CN201354907Y (en) * | 2009-02-06 | 2009-12-02 | 伍婧绫 | Pipe junction |
| CN201772163U (en) * | 2010-05-28 | 2011-03-23 | 上海大众燃气有限公司 | Screwed movable joint |
-
2010
- 2010-05-28 CN CN2010101873897A patent/CN102261531A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2365495Y (en) * | 1998-10-27 | 2000-02-23 | 王华胜 | Cutting sleeve type pipe coupling sealed with rubber sealing ring |
| CN2418336Y (en) * | 2000-03-15 | 2001-02-07 | 罗显顺 | Fastening-sleeve type connector for pipeline |
| CN201354907Y (en) * | 2009-02-06 | 2009-12-02 | 伍婧绫 | Pipe junction |
| CN201772163U (en) * | 2010-05-28 | 2011-03-23 | 上海大众燃气有限公司 | Screwed movable joint |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20111130 |