CN104728544A - Connecting pipe joint - Google Patents
Connecting pipe joint Download PDFInfo
- Publication number
- CN104728544A CN104728544A CN201510122375.XA CN201510122375A CN104728544A CN 104728544 A CN104728544 A CN 104728544A CN 201510122375 A CN201510122375 A CN 201510122375A CN 104728544 A CN104728544 A CN 104728544A
- Authority
- CN
- China
- Prior art keywords
- annular groove
- flange
- connecting pipe
- connecting tube
- pipe joint
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/02—Flanged joints the flanges being connected by members tensioned axially
- F16L23/032—Flanged joints the flanges being connected by members tensioned axially characterised by the shape or composition of the flanges
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/16—Flanged joints characterised by the sealing means
- F16L23/18—Flanged joints characterised by the sealing means the sealing means being rings
- F16L23/22—Flanged joints characterised by the sealing means the sealing means being rings made exclusively of a material other than metal
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gasket Seals (AREA)
Abstract
The invention provides a connecting pipe joint for connection of a fluid delivery pipeline and a pipeline. The connecting pipe joint comprises a connecting pipe, end-face flanges on two sides, flange installation holes, an annular groove and a rubber sealing ring, wherein the annular groove is machined on the end-face flange on any side, the rubber sealing ring is matched with the annular groove in shape and is embedded in the annular groove, the annular groove is located between a flange inner circle and the flange installation holes, the height of the rubber sealing ring is not smaller than the depth of the annular groove, and the section of the annular groove is in the shape of an inverted triangle, or a semicircle or a rectangle. According to the connecting pipe joint, the structure and sealing mode of an existing connecting pipe joint are changed, the problem of leakage of a connecting pipe joint for connection of the fluid delivery pipeline and the pipeline in actual production or life is solved, and the quality of the connecting pipe joint is effectively improved. The connecting pipe joint is high in precision, accurate in positioning, easy and convenient to install, reliable in sealing and long in service life.
Description
Technical field
The present invention relates to the design of current nipple part, specifically refer to the connecting tube joint that a kind of fluid-transporting tubing is connected with pipeline enclosure.
Background technique
The fluids such as liquids and gases cause the wasting of resources in course of conveying phenomenon because of leakage is usually run in actual production, life.Such as, water is carried on paramount hillside by water power plant, usually needs to be carried by the connecting tube be arranged on inclination hillside.When hillside is higher, connecting tube joint must be used to be coupled together by multiple connecting tube, when being full of water in connecting tube, its weight strengthens, on the hillside tilted, this gravity pressure upper and lower to rubber seal is not identical or heterogeneous, due to rubber and metal combination precision not high, easily cause upper and lower gap inconsistent, leak.Analyze it, mainly the problem of connecting tube joint that is connected with pipeline enclosure of fluid-transporting tubing.The quality fluid delivery pipeline of connecting tube joint plays vital effect, requires that its dimensional accuracy is high, easy for installation, sealing is reliable, long service life.Current connecting tube joint mainly adopts metal flange structure and rubber seal to form, joint form mainly places seal ring between two adpting flange end faces, seal ring and end face of flange have same shape, after utilizing screw rod to pass Flange joint dish and seal ring, realize being connected and fixing with nut check, utilize coupling mechanism force to realize the sealing of connecting tube joint, but there is following deficiency in which:
1) two end face of flange contact with seal ring respectively and coordinate, and it is not high to manufacture quality of fit between the metal of flange and the rubber making seal ring;
2) rubber seal is placed between two end face of flange, outside is exposed in air, the liquid that inner side and connecting tube are carried or gas contact, rubber is easily aging in atmosphere, poor to multiple fluid medium corrosion resistance, easily cause seal ring lost efficacy and leaked, not only bring the trouble of replacing but also waste resource.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art part, improve mode of structure and the seal form of existing connecting tube joint, provide that a kind of dimensional accuracy is high, accurate positioning, easy for installation, sealing is reliable, the connecting tube joint of long service life.
For achieving the above object, the present invention takes following technological scheme:
A kind of connecting tube joint, is characterized in that: it comprises connecting tube, both sides end flanges, flange mounting hole, annular groove, rubber seal; The end flanges of any side in the end flanges of described both sides is processed with annular groove; Described rubber seal loop-shaped and annular groove shaped match, and installation by adhering; Described annular groove is between flange inner circle and end face of flange mounting hole.
The height of described rubber seal is not less than the degree of depth of annular groove.
Described annular groove sectional shape is del or semicircle or rectangular.
The present invention has following outstanding advantage compared with existing connecting tube joint:
1, present invention improves over mode of structure and the seal form of existing connecting tube joint, provide that a kind of precision is high, accurate positioning, easy for installation, sealing is reliable, the connecting tube joint of long service life, solve the problems such as the connecting tube joint that is connected with pipeline enclosure of fluid-transporting tubing easily leaks in actual production, life, effectively can improve the quality of connecting tube joint.
2, rubber seal loop-shaped of the present invention and annular groove shaped match, and rubber seal location accurately when mounted, installs simple and convenient;
3, the end face of flange of connecting tube joint both sides of the present invention directly contacts, and because metal flange end face is by accurately machined, thus installs connection and fix rear quality of fit high;
4, rubber seal of the present invention is placed between connecting tube endoporus circumference and end face of flange mounting hole, outside avoids the easy problem of aging being exposed to air, inner side does not directly contact with connection liquid in pipe or gas, decrease the corrosion of rubber seal, the working life of rubber seal can be improved, reduce rubber seal and change.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of end flanges A of connecting tube joint;
Fig. 2 is the structural representation of a kind of end flanges B of connecting tube joint;
Wherein: 1 is connecting tube; 2 is end flanges A; 3 is flange mounting hole; 4 is flange inner circle; 5 is annular groove; 6 is rubber seal; 7 is end flanges B.
Fig. 3 is that del annular groove of the present invention mates schematic diagram with rubber seal;
Fig. 4 is that semicircular rings connected in star of the present invention mates schematic diagram with rubber seal;
Fig. 5 is that rectangular annular groove of the present invention mates schematic diagram with rubber seal.
Embodiment
By following embodiment and accompanying drawing 1 ~ 5, the invention will be further described, but embodiments of the present invention are not limited only to this.
Embodiment 1
As shown in Fig. 1 ~ Fig. 5, a kind of connecting tube joint of the present invention comprises connecting tube 1, both sides end flanges 2 and 7, flange mounting hole 3, annular groove 5, rubber seal 6.As shown in Figure 1, the end flanges A2 of connecting tube joint is processed with annular groove 5; Described rubber seal 6 shape and annular groove 5 mating shapes, described annular groove 5 is between flange inner circle 4 and end face of flange mounting hole 3.The sectional shape of annular groove 5 can be del or semicircle or rectangular.As shown in Figure 3, del annular groove mates schematic diagram with rubber seal.As shown in Figure 4, semicircular rings connected in star mates schematic diagram with rubber seal.As shown in Figure 5, rectangular annular groove mates schematic diagram with rubber seal.The height of described rubber seal 6 is not less than the degree of depth of annular groove 5, is not less than the end face of flange with annular groove after rubber seal 6 embedded rings connected in star 5, and after installing, the end face of flange of connecting tube joint both sides directly contacts.
Embodiment 2
Be applied to the joint of water power plant connecting tube.Connecting tube 1 external diameter is 500mm, and flange inner circle 4 diameter of both sides end flanges 2 and 7 is 500mm, external profile diameter is 750mm; It is rectangular that one side flange (end flanges A2) of connecting tube joint is processed with annular groove 5 section, width is 50mm, the degree of depth is 25mm, annular groove 5 is 10mm apart from the distance of flange inner circle 4, and flange mounting hole 3 diameter is 30mm, mounting hole distance of center circle flange outer rim 30mm; Rubber seal 6 section is also rectangular, and width is 50mm, is highly 26mm.During connecting tube jiont treatment, first both sides end flanges A 2 and flange B7 is welded with connecting tube 1, then rubber seal 6 is embedded in the annular groove 5 of end flanges A2, again by two side flange A 2 and the docking of flange B 7 end face, use bolt through the flange mounting hole 3 of two side flanges, be connected with nut, fix and locking, utilize the pressure of both sides, both sides end flanges A 2 and flange B 7 pairs of rubber seal 6, realize the sealing to connecting tube joint.
Embodiment 3
The present invention is applied to the joint of press machine oil pipe.Connecting tube external diameter is 50mm, and inner circle 4 diameter of flange 2 and 7 is 50mm, external diameter is 100mm; Upper annular groove 5 section of one side flange (end flanges A2) of connecting tube joint is semicircle, width is 5mm, the degree of depth is 2.5mm, annular groove 5 is 5mm apart from the distance of flange inner circle 4, and flange mounting hole diameter is 6mm, mounting hole distance of center circle flange outer rim 6mm; Rubber seal section is also semicircle, and width is 5mm, is highly 2.8mm.During connecting tube jiont treatment, first both sides end flanges A 2 is connected with connecting tube 1 by screw thread with flange B 7, then rubber seal 6 is embedded in the annular groove 5 of end flanges A2, again both sides end face of flange is docked, use bolt through the flange mounting hole 3 of two side flanges, be connected with nut, fix and locking, utilize the pressure of two side flange A 2 and flange B 7 pairs of rubber seal 6, realize the sealing to connecting tube joint.
Claims (3)
1. a connecting tube joint, is characterized in that: it comprises connecting tube, both sides end flanges, flange mounting hole, annular groove, rubber seal; The end flanges of any side in the end flanges of described both sides is processed with annular groove; Described rubber seal loop-shaped and annular groove shaped match, and installation by adhering; Described annular groove is between flange inner circle and end face of flange mounting hole.
2. a kind of connecting tube joint according to claim 1, is characterized in that: the height of described rubber seal is not less than the degree of depth of annular groove.
3. a kind of connecting tube joint according to claim 1, is characterized in that: described annular groove sectional shape is del or semicircle or rectangular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510122375.XA CN104728544A (en) | 2015-03-19 | 2015-03-19 | Connecting pipe joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510122375.XA CN104728544A (en) | 2015-03-19 | 2015-03-19 | Connecting pipe joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104728544A true CN104728544A (en) | 2015-06-24 |
Family
ID=53452727
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510122375.XA Pending CN104728544A (en) | 2015-03-19 | 2015-03-19 | Connecting pipe joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104728544A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109731488A (en) * | 2019-02-26 | 2019-05-10 | 江苏秋泓环境检测有限公司 | Sealed filtering flask for foul smell dilution device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1431419A (en) * | 2003-01-23 | 2003-07-23 | 廖仲力 | Small flange connection fittings for high pressure stainless steel tube |
| CN2674239Y (en) * | 2003-11-28 | 2005-01-26 | 郑桂珍 | Sealing ring for leak of flange |
| CN2821352Y (en) * | 2005-09-21 | 2006-09-27 | 韩文生 | Aluminum and magnesium alloy water transport pipe |
| CN201539655U (en) * | 2009-06-30 | 2010-08-04 | 陈安中 | High leakage-resistant flange joint |
-
2015
- 2015-03-19 CN CN201510122375.XA patent/CN104728544A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1431419A (en) * | 2003-01-23 | 2003-07-23 | 廖仲力 | Small flange connection fittings for high pressure stainless steel tube |
| CN2674239Y (en) * | 2003-11-28 | 2005-01-26 | 郑桂珍 | Sealing ring for leak of flange |
| CN2821352Y (en) * | 2005-09-21 | 2006-09-27 | 韩文生 | Aluminum and magnesium alloy water transport pipe |
| CN201539655U (en) * | 2009-06-30 | 2010-08-04 | 陈安中 | High leakage-resistant flange joint |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109731488A (en) * | 2019-02-26 | 2019-05-10 | 江苏秋泓环境检测有限公司 | Sealed filtering flask for foul smell dilution device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150624 |
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| RJ01 | Rejection of invention patent application after publication |