CN1844724A - Opposite-clamping pipe joint - Google Patents
Opposite-clamping pipe joint Download PDFInfo
- Publication number
- CN1844724A CN1844724A CN 200610050560 CN200610050560A CN1844724A CN 1844724 A CN1844724 A CN 1844724A CN 200610050560 CN200610050560 CN 200610050560 CN 200610050560 A CN200610050560 A CN 200610050560A CN 1844724 A CN1844724 A CN 1844724A
- Authority
- CN
- China
- Prior art keywords
- seal ring
- pipe
- tubular shape
- step cutting
- arc groove
- 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
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- Flanged Joints, Insulating Joints, And Other Joints (AREA)
Abstract
The invention relates to a connector of tube, which comprises two tube connectors connecting the tube. Wherein, two connectors have round steps at connecting ends; the outer steps are incline taper while two round steps are mounted with semi-circular compressors; two semi-circular compressors are mounted with bolt mounting holes, while there is inner arc groove between them; two side walls of inner arc groove have incline taper matched with outer steps; the connecting ends of connectors have sealing rings; via compressing the mounting nuts of two semi-circular compressors, the inner incline taper is deeply matched with the outer incline taper of connector. The invention forces the connector be matched sealed with sealing ring, which can reduce material, improve mounting reliability and better fireproof property.
Description
Technical field
The present invention relates to a kind of pipe joint.The present invention is applicable between pipeline and the pipeline, the jointing between pipeline and the equipment.
Background technique
At present, the long-distance transport pipes in industrial or agricultural and city all are that the pipeline by certain-length is formed by connecting, between this pipeline and the pipeline be connected and pipeline and equipment between, modal Placement is that flange connects.The major defect of flange connection is: the volume of flange plate is bigger, need to consume more material, the construction bolt of flange plate circumference is more simultaneously, trouble is installed, and the impacting force of circumferencial direction construction bolt is difficult to reach even, make flange plate circumferencial direction sealing force inconsistent, the joint sealing performance is unreliable.In addition, flanged connecting structure generally needs to establish the soft seal pad between two flange facings, and this soft seal pad in use easily wears out and leaks, and fireproof performance is poor.
Summary of the invention
The objective of the invention is the shortcoming that exists at prior art, a kind of material economy, easy for installation, sealability is reliable, fireproof performance is good wafer type pipe coupling are provided.
The technological scheme that realizes the object of the invention comprises two pipe joints that are connected with connected pipe, two pipe joints interconnect end and are shaped on step cutting pattern, mainly be that the outer table top of described step cutting pattern is the oblique cone face, semicircle compressing member is housed on two step cutting patterns, two semicircle compressing members are provided with bolt mounting holes, be shaped on interior arc groove in the middle of the semicircle compressing member, the two side of arc groove is shaped on the oblique cone face that cooperatively interacts with the outer table top of step cutting pattern in being somebody's turn to do, and interconnects end at two pipe joints seal ring is set.
In above technological scheme, described seal ring is the tubular shape seal ring that has with the pipe joint same inner diameter, two mouth of pipe cylindrical walls of tubular shape seal ring are shaped on the cylindrical conical seal (contact) face respectively, and the interior angle at the two pipe joint places of interconnecting has the inner conical sealing surface that cooperatively interacts with tubular shape seal ring two cylindrical conical seal (contact) faces.
In above technological scheme, the axially middle annular convex shoulder of tubular shape seal ring with protrusion.
The present invention's beneficial effect compared with prior art is the cooperating structure that adopts the interior oblique cone face of the outer oblique cone face of pipe joint step cutting pattern and semicircle compressing member arc groove, by compressing the installation nut of two semicircle compressing members, oblique cone face deeply cooperates with outer oblique cone face on the pipe joint in it, compress two pipe joints by force and its seal ring is sealed and matched, have economical with materials, easy for installation, advantage such as sealability is reliable, fireproof performance is good.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the structure sectional view of A-A direction among Fig. 1 of the present invention.
Embodiment
Wafer type pipe coupling as shown in Figure 1 and Figure 2, comprise two pipe joints that are connected with connected pipe 1,2, two pipe joints 1,2 interconnect end and are shaped on step cutting pattern 3,4, described step cutting pattern 3,4 outer table tops are the oblique cone face, semicircle compressing member 5,6 is housed on two step cutting patterns 3,4, two semicircle compressing members 5,6 are provided with bolt mounting holes 7, arc groove 8,9 in being shaped in the middle of the semicircle compressing member 5,6, two side of arc groove 8,9 is shaped on the interior oblique cone face that the outer oblique cone face with step cutting pattern 3,4 outer table tops cooperatively interacts in this.When two conical surfaces cooperatively interact state, retention gap α between the inner arc surface of semicircle compressing member 5,6 and two pipe joints, 1, the 2 cylindrical walls, retention gap δ between outer 3,4 circumferential surfacies of the interior arc groove bottom surface of semicircle compressing member 5,6 and pipe joint 1,2 step cutting patterns, retention gap β between two semicircle compressing members 5,6.Interconnect end at two pipe joints 1,2 seal ring 10 is set, sealing circle 10 has the tubular shape ring structure with pipe joint 1,2 same inner diameter, two mouth of pipe cylindrical walls of tubular shape seal ring are made outer cone sealing surface 11,12 structures, and the interior angle at two pipe joints, 1,2 places of interconnecting has the female cone sealing surface that cooperatively interacts with tubular shape seal ring two outer cone sealing surfaces 11,12.The axially middle annular convex shoulder 13 of tubular shape seal ring with protrusion, this annular convex shoulder 13 is embedded between step cutting pattern 3,4 inner planes of two pipe joints 1,2, and and retention gap between two pipe joints, 1,2 step cutting patterns, 3,4 inner planes, seal ring 10 is played the role of positioning.Two semicircle compressing members 3,4 adopt bolt 15 and nut 14 to install and compress, be respectively equipped with an above bolt mounting holes 7 on one side, present embodiment adopts two bolt mounting holes 7, when gland nut 14, gap beta between two semicircle compressing members 3,4 diminishes, oblique cone face deeply cooperates with outer oblique cone face on the pipe joint 1,2 in it, compress two pipe joints 1,2 by force, the female cone sealing surface compact tubular shape seal ring two outer cone sealing surfaces 11,12 at pipe joint 1,2 interior angle places are realized being sealed and matched.Described semicircle compressing member 3,4 also can adopt the compressing member of other circular arc degree, as the compressing member of 1/3rd circular arc degree, is best structure but select semicircle.Semicircle compressing member 3,4, pipe joint 1,2, tubular shape seal ring all adopt the metal stainless steel material, the two ends of two pipe joints 1,2 are connected with connected metallic conduit welding or other modes respectively, one of them pipe joint also can with the import and export of pipe-line equipment welding, as the import of valve with export and be connected.
In above embodiment, if connected pipe is a plastic materials, then semicircle compressing member 3,4, pipe joint 1,2, tubular shape seal ring all adopt plastic materials.
Claims (3)
1, a kind of wafer type pipe coupling, comprise two pipe joints that are connected with connected pipe (1,2), two pipe joints (1,2) interconnect end and be shaped on step cutting pattern (3,4), it is characterized in that described step cutting pattern (3,4) outer table top is the oblique cone face, at two step cutting patterns (3, semicircle compressing member (5 is housed 4), 6), two semicircle compressing members (5,6) be provided with bolt mounting holes (7), semicircle compressing member (5,6) be shaped on interior arc groove (8 in the middle of, 9), arc groove (8 in being somebody's turn to do, 9) two side is shaped on and step cutting pattern (3,4) the oblique cone face that cooperatively interacts of outer table top is at two pipe joints (1,2) interconnect end seal ring (10) is set.
2, wafer type pipe coupling according to claim 1, it is characterized in that described seal ring (10) is for having the tubular shape seal ring with pipe joint (1,2) same inner diameter, two mouth of pipe cylindrical walls of tubular shape seal ring are made outer cone sealing surface (11,12) structure, and the interior angle at two pipe joints (1, the 2) place of interconnecting has the female cone sealing surface that cooperatively interacts with tubular shape seal ring two outer cone sealing surfaces (11,12).
3, wafer type pipe coupling according to claim 2 is characterized in that the axially middle annular convex shoulder (13) with protrusion of tubular shape seal ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610050560 CN1844724A (en) | 2006-04-26 | 2006-04-26 | Opposite-clamping pipe joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610050560 CN1844724A (en) | 2006-04-26 | 2006-04-26 | Opposite-clamping pipe joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1844724A true CN1844724A (en) | 2006-10-11 |
Family
ID=37063672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610050560 Pending CN1844724A (en) | 2006-04-26 | 2006-04-26 | Opposite-clamping pipe joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1844724A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105423021A (en) * | 2016-01-08 | 2016-03-23 | 王小娟 | Petroleum pipeline flange connection structure |
| CN105715888A (en) * | 2016-04-14 | 2016-06-29 | 安庆宜源石油机械配件制造有限责任公司 | Tight flange connecting piece |
-
2006
- 2006-04-26 CN CN 200610050560 patent/CN1844724A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105423021A (en) * | 2016-01-08 | 2016-03-23 | 王小娟 | Petroleum pipeline flange connection structure |
| CN105715888A (en) * | 2016-04-14 | 2016-06-29 | 安庆宜源石油机械配件制造有限责任公司 | Tight flange connecting piece |
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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 | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |