CN201875307U - Square shoulder joint being suitable for O-shaped ring seal - Google Patents
Square shoulder joint being suitable for O-shaped ring seal Download PDFInfo
- Publication number
- CN201875307U CN201875307U CN 201020655252 CN201020655252U CN201875307U CN 201875307 U CN201875307 U CN 201875307U CN 201020655252 CN201020655252 CN 201020655252 CN 201020655252 U CN201020655252 U CN 201020655252U CN 201875307 U CN201875307 U CN 201875307U
- Authority
- CN
- China
- Prior art keywords
- shoulder joint
- square shoulder
- main body
- seal
- flat shoulder
- 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.)
- Expired - Fee Related
Links
- 210000000323 shoulder joint Anatomy 0.000 title abstract 11
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 10
- 229910052802 copper Inorganic materials 0.000 abstract description 10
- 239000010949 copper Substances 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 7
- 238000003466 welding Methods 0.000 abstract description 5
- 239000010425 asbestos Substances 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 4
- 229910052895 riebeckite Inorganic materials 0.000 abstract description 4
- 238000010276 construction Methods 0.000 abstract description 3
- 239000002341 toxic gas Substances 0.000 abstract description 3
- 239000011324 bead Substances 0.000 abstract 2
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 abstract 1
- 239000003921 oil Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
- 238000007789 sealing Methods 0.000 description 7
- 238000012856 packing Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- Gasket Seals (AREA)
Abstract
The utility model relates to a square shoulder joint, in particular to a square shoulder joint being suitable for O-shaped ring seal. The utility model aims to solve the problems that toxic gas can be released if an asbestos rubber sheet is adopted by the traditional CB56 standard lap welding square shoulder joint to carry out seal, if a copper washer is adopted to carry out the seal, the copper washer is complicated to process and has high cost, and the seal effect can be achieved by applying a larger external force to make the copper washer to generate plastic deformation in the construction process. The square shoulder joint comprises a square shoulder joint main body; the square shoulder joint main body is in a sleeve shape; one end of the square shoulder joint main body is provided with a circular bead; the end surface of one end of the square shoulder joint main body, which is provided with the circular bead, is provided with a groove; and the middle part of the inner wall of the square shoulder joint main body is provided with a boss. The square shoulder joint is used for pipeline coupling in oil, water and gas systems of which the pressure is lower than 25MPa.
Description
Technical field
The utility model relates to a kind of flat shoulder grafting head, is specifically related to a kind of flat shoulder grafting head that is applicable to seal with O ring.
Background technique
After flat shoulder grafting head and the pipeline joint welding, link together by cap nut and pipe joint, at present, the flat shoulder grafting head of the joint welding of CB56 standard all adopts asbestos packing sheet or copper washer to seal, because asbestos packing sheet can discharge toxic gas, be not suitable for using the use that progressively has been under an embargo, copper washer processed complex at this confined space of boats and ships, the cost height, and in the pipeline construction process, need apply bigger external force and make copper washer generation plastic deformation, thereby reach the effect of sealing.
The model utility content
The utility model can discharge toxic gas for the flat shoulder grafting head of the joint welding that solves present CB56 standard adopts asbestos packing sheet to seal, adopt copper washer to seal, copper washer processed complex, cost height, in work progress, need to apply bigger external force and make copper washer generation plastic deformation just can reach the problem of sealing effect, and then propose a kind of flat shoulder grafting head that is applicable to seal with O ring.
The utility model is to address the above problem the technological scheme of taking to be: the utility model comprises flat shoulder grafting head main body, described flat shoulder grafting head main body is a sleeve shape, and an end of flat shoulder grafting head main body is provided with shoulder, the end face that described flat shoulder grafting head main body is provided with shoulder one end has groove, and the inwall middle part of described flat shoulder grafting head main body is provided with convex.
The beneficial effects of the utility model are: the utility model is by offering groove at the joint end face, realized the pipe joint end face seal, the following pressure rating working medium of 25MPa there is good sealing effect, and easy construction, quick, laborsaving, do not need to apply bigger external force and can reach sealing effect, the utility model can reach more than 2.5 times of flat shoulder grafting head sealing load grade of CB56 standard, and processing is simple, has reduced engineering cost.
Description of drawings
Fig. 1 is an overall structure plan view of the present utility model, and Fig. 2 is the enlarged view at A place among Fig. 1, and Fig. 3 is the utility model schematic representation when being connected with pipeline.
Embodiment
Embodiment one: as Figure 1-3, the described a kind of flat shoulder grafting head of seal with O ring that is applicable to of present embodiment comprises flat shoulder grafting head main body 1, described flat shoulder grafting head main body 1 is a sleeve shape, and an end of flat shoulder grafting head main body 1 is provided with shoulder 1-1, the end face that described flat shoulder grafting head main body 1 is provided with shoulder 1-1 one end has groove 1-2, and the inwall middle part of described flat shoulder grafting head main body 1 is provided with convex 1-3.Present embodiment guaranteed pipe joint in the face of 25MPa once the pressure rating working medium have good sealing effect, improve more than 2.5 times than the flat shoulder grafting head sealing load grade of CB56 standard.
Embodiment two: as Figure 1-3, the outer side wall of the groove 1-2 of the described a kind of flat shoulder grafting head that is applicable to seal with O ring of present embodiment is than the high 0.1mm～0.2mm of madial wall.Present embodiment has guaranteed that the outer side wall of groove 1-2 puts forth effort earlier, avoids the madial wall extrusion-deformation of outer cover nut thread pretightening force with groove 1-2.Other composition and annexation are identical with embodiment one.
Embodiment three: as Figure 1-3, the width b of the groove 1-2 of the described a kind of flat shoulder grafting head that is applicable to seal with O ring of present embodiment is 12mm.Please inventor's supplementary invention effect.Other composition and annexation are identical with embodiment one or two.
Working principle
Behind the utility model and copper pipe or the seamless steel pipe overlap joint, assembly welding is an one, the O-ring seals setting-in is gone into groove 1-2 after, utilize cap nut with the utility model with screw in inipple, a pipe screw joint, intermediate thread joint and link together.
Claims (3)
1. flat shoulder grafting head that is applicable to seal with O ring, it comprises flat shoulder grafting head main body (1), described flat shoulder grafting head main body (1) is a sleeve shape, and an end of flat shoulder grafting head main body (1) is provided with shoulder (1-1), it is characterized in that: the end face that described flat shoulder grafting head main body (1) is provided with shoulder (1-1) end has groove (1-2), and the inwall middle part of described flat shoulder grafting head main body (1) is provided with convex (1-3).
2. according to the described a kind of flat shoulder grafting head that is applicable to seal with O ring of claim 1, it is characterized in that: the outer side wall of described groove (1-2) is than the high 0.1mm～0.2mm of madial wall.
3. according to claim 1 or 2 described a kind of flat shoulder grafting heads that are applicable to seal with O ring, it is characterized in that: the width (b) of described groove (1-2) is 12mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020655252 CN201875307U (en) | 2010-12-13 | 2010-12-13 | Square shoulder joint being suitable for O-shaped ring seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020655252 CN201875307U (en) | 2010-12-13 | 2010-12-13 | Square shoulder joint being suitable for O-shaped ring seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201875307U true CN201875307U (en) | 2011-06-22 |
Family
ID=44163224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020655252 Expired - Fee Related CN201875307U (en) | 2010-12-13 | 2010-12-13 | Square shoulder joint being suitable for O-shaped ring seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201875307U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103409641A (en) * | 2013-07-16 | 2013-11-27 | 辽宁科技大学 | Plugging method for bottom water tank and crystallizer during stripping electroslag re-melting |
| CN108343799A (en) * | 2017-12-28 | 2018-07-31 | 武汉船舶通信研究所（中国船舶重工集团公司第七二二研究所） | A kind of plumbing installation |
| CN108506604A (en) * | 2018-06-25 | 2018-09-07 | 海盐双赢管件制造有限公司 | It is a kind of to be convenient for being welded to connect stable straight coupling |
-
2010
- 2010-12-13 CN CN 201020655252 patent/CN201875307U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103409641A (en) * | 2013-07-16 | 2013-11-27 | 辽宁科技大学 | Plugging method for bottom water tank and crystallizer during stripping electroslag re-melting |
| CN108343799A (en) * | 2017-12-28 | 2018-07-31 | 武汉船舶通信研究所（中国船舶重工集团公司第七二二研究所） | A kind of plumbing installation |
| CN108506604A (en) * | 2018-06-25 | 2018-09-07 | 海盐双赢管件制造有限公司 | It is a kind of to be convenient for being welded to connect stable straight coupling |
| CN108506604B (en) * | 2018-06-25 | 2023-06-30 | 海盐双赢管件制造有限公司 | Through joint convenient to welded connection is stable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110622 Termination date: 20131213 |