CN85104627A - The seal arrangement that is used for pressure test - Google Patents
The seal arrangement that is used for pressure test Download PDFInfo
- Publication number
- CN85104627A CN85104627A CN85104627.4A CN85104627A CN85104627A CN 85104627 A CN85104627 A CN 85104627A CN 85104627 A CN85104627 A CN 85104627A CN 85104627 A CN85104627 A CN 85104627A
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- CN
- China
- Prior art keywords
- groove
- pipe
- ring
- shell
- support ring
- Prior art date
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Abstract
The present invention relates to a kind of device that is used for pipe testing in the pipe testing press machine, it is by patent ... device in (patent application P3307813) improves and forms.It is characterized in that having one to make the open modifying device of support mechanism by means of a tapered collar.This tapered collar embeds in the groove of holding successfully in advance on the supporting part, makes the tapered collar action by hydraulic pressure.
Description
According to patent ... (patent application P3307813) the present invention relates to a kind of device that is used for pipe testing in the pipe testing press machine.
Its improvement is that the axially mounting ring is made up of some supporting parts, and these supporting parts radially separate, and has mutually at interval, doing under the situation of radial motion, can relatively move each other, and they are used for supporting the Sealing of the principal pressure that bears test pressure.In patent ... in (patent application P3307813), for pipe is imported, supporting part opens by means of pressure spring to be realized.
Present improvement is, opens for making supporting part, and one is placed in the groove that the conical ring axial in the axial groove in the shell inserts supporting part, by means of conical surface, these supporting parts is opened.And the action of tapered collar can realize by hydraulic pressure.Compare with placement force spring in the past, the advantage of this measure is: owing to be not subject to Effect of Environmental, under the situation of environmental pollution, the supporting part of axial pressure ring might open more reliably.
One embodiment of the present of invention are illustrated according to accompanying drawing.Accompanying drawing is a sectional drawing, and it has been expressed according to patent ... (patent application P3307813) also has testing apparatus according to tapered collar of the present invention.
This embodiment shows by patent ... known device in (patent application P3307813), this device have one with liquid pressurization, can be directly because of the pressure that is put to the test be out of shape, thus the Sealing that seals 8.According to invention, on the supporting part 14 of axially mounting 12 groove 30 is arranged, groove 30 is placed into the end 3 of pipe 2 dorsad.Simultaneously, the outer shuttle of groove 30 is preferably an inclined-plane, thereby outer shuttle can be slided on the conical surface 33 of the tapered collar 31 that cooperates with groove 30, and tapered collar can axially move in the groove 32 of shell.When tapered collar 31 was done the axial orientation to-and-fro motion, ring 31 tapering part was deeper in the embedded groove 30.Therefore, because the axial motion of ring causes radially orientation movement outwardly of supporting part 14, axially pressure ring (12) opens simultaneously.Ring 31 outwards moves in the opposite direction and leaves after the groove 30, and by leather cup (16) pressurization, supporting part 14 can be again near pipeline.
The same with supporting part 14 with Sealing 8, the action of tapered collar 31 is also finished by hydraulic pressure.For this reason, tapered collar 31 is equipped with a leather cup 34, and leather cup tightly is pressed in the groove 32 of shell 4, and the pressurization of available liquid.
Claims (2)
1, according to patent ... (patent application P3307813), pipe testing device in a kind of hydraulic pressure pipe test pressure machine, it has a shell, one end of underproof pipe inserts the shell from a side, the opposite side of shell is pressurized by the pressure medium in the introduction tube, simultaneously, leave the gap in the coaxial direction that places shell by the test pipe, an elastic seal ring of encircling pipe is housed in the gap, the sealing circle can be out of shape, and makes the inboard towards pipe of seal ring can closely seal the pipeline periphery.A side that deviates from the tube end that is introduced on the seal ring in shell has groove, this grooved ring is around pipe and coaxial with pipe, the axially support ring that diameter is variable of packing in the groove, its exceed groove, be subjected to the effect of axial force and supporting seal ring towards the front portion of elastomer seal.The axially support ring is made up of some supporting parts, these supporting parts radially separate, have mutually at interval, can relatively move each other by radial motion, a leather cup of embracing supporting part is housed with compressing in the groove, this leather cup is by the liquid pressurization, can draw in together by means of this leather cup supporting part and to open with machinery, at the part that exceeds groove of axially support ring and elastic sealing ring a planar support ring arranged between the front of axially support ring, the internal diameter of this ring adapts with the maximum diameter of pipe at least, it is characterized in that:
On the supporting part (14) of axially support ring (12) groove (30) is arranged, this groove is introduced into the end (3) of pipe (2) dorsad, tapered collar (31) is vertically in the insertion groove (30), and can in the groove (32) of shell (4), axially move, the outer shuttle of the groove (30) in the supporting element (14) is placed on the conical surface (33) of tapered collar (31), like this, the axial orientation to-and-fro motion of tapered collar is opened axially support ring (12).
2, according to the described pipe testing device of claim 1, it is characterized in that:
By means of an annular seal leather cup (34), tapered collar (31) can move, and leather cup (34) places groove (32), can pressurize with liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN85104627.4A CN1004296B (en) | 1985-06-15 | 1985-06-15 | For the seal arrangement of pipe pressure test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN85104627.4A CN1004296B (en) | 1985-06-15 | 1985-06-15 | For the seal arrangement of pipe pressure test |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN85104627A true CN85104627A (en) | 1986-12-10 |
| CN1004296B CN1004296B (en) | 1989-05-24 |
Family
ID=4793965
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN85104627.4A Expired CN1004296B (en) | 1985-06-15 | 1985-06-15 | For the seal arrangement of pipe pressure test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1004296B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101561338B (en) * | 2009-05-11 | 2011-07-27 | 北京市市政工程研究院 | Pipeline pressure test method and device |
| CN103471788A (en) * | 2013-09-10 | 2013-12-25 | 北京市市政工程研究院 | Rubber rings used by coated pipeline pressure testing device |
| CN105675386A (en) * | 2016-03-09 | 2016-06-15 | 南通永大管业股份有限公司 | Sealed pressurizing device for hydraulic press |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017042136A1 (en) * | 2015-09-10 | 2017-03-16 | Tetra Laval Holdings & Finance S.A. | A pressure jaw assembly and a sealing jaw arrangement |
-
1985
- 1985-06-15 CN CN85104627.4A patent/CN1004296B/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101561338B (en) * | 2009-05-11 | 2011-07-27 | 北京市市政工程研究院 | Pipeline pressure test method and device |
| CN103471788A (en) * | 2013-09-10 | 2013-12-25 | 北京市市政工程研究院 | Rubber rings used by coated pipeline pressure testing device |
| CN103471788B (en) * | 2013-09-10 | 2015-09-16 | 北京市市政工程研究院 | The cushion rubber that outer-enwraped type pipeline pressure testing device uses |
| CN105675386A (en) * | 2016-03-09 | 2016-06-15 | 南通永大管业股份有限公司 | Sealed pressurizing device for hydraulic press |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1004296B (en) | 1989-05-24 |
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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 | ||
| C13 | Decision | ||
| GR02 | Examined patent application | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |