CN202733322U - Pipe mouth sealing device used for pipe hydraulic testing - Google Patents
Pipe mouth sealing device used for pipe hydraulic testing Download PDFInfo
- Publication number
- CN202733322U CN202733322U CN 201220400277 CN201220400277U CN202733322U CN 202733322 U CN202733322 U CN 202733322U CN 201220400277 CN201220400277 CN 201220400277 CN 201220400277 U CN201220400277 U CN 201220400277U CN 202733322 U CN202733322 U CN 202733322U
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- pipe
- screw rod
- expansion
- diameter
- sealing device
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- Expired - Fee Related
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model discloses a pipe mouth sealing device used for pipe hydraulic testing. The pipe mouth sealing device used for the pipe hydraulic testing comprises a screw rod, wherein an end cap is fixed at one end of the screw rod, the other end of the screw rod is in threaded connection with a fastening nut, the screw rod situated between the end cap and the fastening nut is sequentially provided with a sealing rubber ring and an expansion mechanism in a sleeved mode, the expansion mechanism can be locked with the inner wall of the mouth of a pipe. According to the structure of the pipe mouth sealing device used for the pipe hydraulic testing, a pair of chock plugs and a pair of expansion pipes are provided, the chock plugs are respectively provided with a tapered end, the expansion pipes are located between the chock plugs and are respectively provided with a bifurcate expansion piece opening end, the tapered ends of the two chock plugs are distributed in face to face mode, the bifurcate expansion piece opening ends of the two expansion pipes are distributed in back to back mode, the diameter of a minor-caliber end of each tapered end is smaller than the diameter of the bifurcate expansion piece opening end of each expansion pipe, the diameter of a big-caliber end of each tapered end is smaller than the diameter of the bifurcate expansion piece opening end of each expansion pipe, when the fastening nut moves towards the direction of the end cap, and expansion pieces of the bifurcate expansion piece opening ends are opened along the tapered ends and are locked with the inner wall of the mouth of the pipe. The pipe mouth sealing device used for the pipe hydraulic testing has the advantages of being simple in structure and low in cost.
Description
Technical field
The utility model relates to the orifice sealing device for the tubing hydrostatic test.
Background technique
The hydrostatic test is a kind of test method of testing the tubing Safety performance of commonly using, it is that a end with tubing seals with orifice sealing device, the other end links to each other with tubing compression resistance testing machine, by the water filling pressurization in the tubing of tubing compression resistance testing machine, after overpressure is increased to certain value, pressurize a period of time is in order to detect the withstand voltage properties of tubing.The structure of present employed orifice sealing device all complicated, equipment cost is high, bulky.
The model utility content
The purpose of this utility model provide a kind of simple in structure, easy to operate, cost is low is used for the orifice sealing device of the tubing hydrostatic test.
For achieving the above object, the utility model has adopted following technological scheme: described orifice sealing device for the tubing hydrostatic test, wherein: comprising: an end is fixed with the screw rod of end cap, the other end of screw rod with tighten up nut thread and be connected, at end cap and tighten up on the screw rod between the nut and be set with successively sealing rubber ring, the expansion mechanism that can lock mutually with the internal wall of pipe orifice of tubing, the structure of described expansion mechanism is: be set in a pair of chock plug with tapered end on the screw rod, a pair of expand tube with the swollen sheet opening end of Y-shaped between chock plug, the tapered end of described two chock plugs distributes in opposite directions, the then opposing distribution of sheet opening end of expanding of the Y-shaped of two expand tubes, the diameter of the small-caliber end of described chock plug tapered end is less than the diameter of the swollen sheet opening end of Y-shaped of expand tube, the diameter of the heavy caliber end of chock plug tapered end is greater than the diameter of the swollen sheet opening end of Y-shaped of expand tube, when guaranteeing to tighten up nut and moving to the end cap direction, the tapered end that can promote each expand tube edge chock plug relative with it moves, and the swollen sheet of the swollen sheet opening end of Y-shaped of expand tube is opened, and lock mutually with the internal wall of pipe orifice of tubing.
Further, aforesaid orifice sealing device for the tubing hydrostatic test, wherein: be positioned at and also be provided with locking nut on the screw rod that tightens up the nut outer end.
By the enforcement of technique scheme, the utlity model has advantage simple in structure, easy to operate, lower-cost.
Description of drawings
Fig. 1 is the structural representation of the orifice sealing device for the tubing hydrostatic test described in the utility model.
Fig. 2 is that swollen sheet struts status architecture schematic diagram when tubing sealed on the expand tube shown in Fig. 1.
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Such as Fig. 1, shown in Figure 2, described orifice sealing device for the tubing hydrostatic test, comprise: an end is fixed with the screw rod 1 of end cap 2, the other end of screw rod 1 with tighten up nut 3 and be threaded, at end cap 2 and tighten up on the screw rod 1 between the nut 3 and be set with successively sealing rubber ring 4, the expansion mechanism that can lock mutually with the place internal wall of pipe orifice, in the present embodiment, the structure of described expansion mechanism is: be set in a pair of chock plug 5 with tapered end on the screw rod 1,51, be positioned at chock plug 5, a pair of expand tube 6 with the swollen sheet opening end of Y-shaped between 51,61, chock plug 5,51 tapered end 10,101 distribute in opposite directions, expand tube 6, the then opposing distribution of sheet opening end of expanding of 61 Y-shaped, the diameter of the small-caliber end of tapered end 10 is less than the diameter of the swollen sheet opening end of Y-shaped of expand tube 6, the diameter of the small-caliber end of tapered end 101 is less than the diameter of the swollen sheet opening end of Y-shaped in the expand tube 61, the diameter of the heavy caliber end of tapered end 10 is greater than the diameter of the swollen sheet opening end of Y-shaped of expand tube 6, the diameter of the heavy caliber end of tapered end 101 is greater than the diameter of the swollen sheet opening end of Y-shaped of expand tube 61, when guaranteeing to tighten up nut 3 and moving to end cap 2 directions, after the tapered end 10 of the chock plug 5 that expand tube 6 edges are relative with it moves, the swollen sheet 7 of the swollen sheet opening end of Y-shaped of expand tube 6 is opened, and lock mutually with the internal wall of pipe orifice of tubing 9, equally, when the tapered end 101 of the chock plug 51 that expand tube 61 edges are relative with it moves, the swollen sheet 71 of the swollen sheet opening end of Y-shaped of expand tube 61 is opened, and lock mutually with the internal wall of pipe orifice of tubing 9; In the present embodiment, be positioned on the screw rod 1 that tightens up nut 3 outer ends and also be provided with locking nut 8, like this can be better with the sheet 7 that expands, 71 and the internal wall of pipe orifice of tubing 9 be fastened.
Working principle of the present utility model is as follows: the fixedly end cap 2 on the screw rod 1 and sealing rubber ring 4, two chock plugs 5,51 and two expand tubes 6,61 are put in the mouth of pipe of tubing 9 together, screw and tighten up nut 3, tightening up nut 3 promotes swollen sheet 7,71 and moves along chock plug 5,51 the conical surface respectively, until swollen sheet 7,71 opens and locks mutually with the internal wall of pipe orifice of tubing 9, then, screw again locking nut 8; In this process, along with the movement of tightening up nut 3, sealing rubber ring 4 can be extruded radially and open, and forms the seal ring line up and seals, and by aforesaid operations, has namely finished the sealing to the mouth of pipe of tubing 9.The utlity model has advantage simple in structure, easy to operate, with low cost.
Claims (2)
1. the orifice sealing device that is used for the tubing hydrostatic test, it is characterized in that: comprising: an end is fixed with the screw rod of end cap, the other end of screw rod with tighten up nut thread and be connected, at end cap and tighten up on the screw rod between the nut and be set with successively sealing rubber ring, the expansion mechanism that can lock mutually with the internal wall of pipe orifice of tubing, the structure of described expansion mechanism is: be set in a pair of chock plug with tapered end on the screw rod, a pair of expand tube with the swollen sheet opening end of Y-shaped between chock plug, the tapered end of described two chock plugs distributes in opposite directions, the then opposing distribution of sheet opening end of expanding of the Y-shaped of two expand tubes, the diameter of the small-caliber end of described chock plug tapered end is less than the diameter of the swollen sheet opening end of Y-shaped of expand tube, the diameter of the heavy caliber end of chock plug tapered end is greater than the diameter of the swollen sheet opening end of Y-shaped of expand tube, when guaranteeing to tighten up nut and moving to the end cap direction, the tapered end that can promote each expand tube edge chock plug relative with it moves, and the swollen sheet of the swollen sheet opening end of Y-shaped of expand tube is opened, and lock mutually with the internal wall of pipe orifice of tubing.
2. the orifice sealing device for the tubing hydrostatic test according to claim 1 is characterized in that: be positioned at and also be provided with locking nut on the screw rod that tightens up the nut outer end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220400277 CN202733322U (en) | 2012-08-14 | 2012-08-14 | Pipe mouth sealing device used for pipe hydraulic testing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220400277 CN202733322U (en) | 2012-08-14 | 2012-08-14 | Pipe mouth sealing device used for pipe hydraulic testing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202733322U true CN202733322U (en) | 2013-02-13 |
Family
ID=47659021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220400277 Expired - Fee Related CN202733322U (en) | 2012-08-14 | 2012-08-14 | Pipe mouth sealing device used for pipe hydraulic testing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202733322U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102809018A (en) * | 2012-08-14 | 2012-12-05 | 张家港华东锅炉有限公司 | Pipe orifice seal device for pipe hydraulic test |
| CN103822045A (en) * | 2014-03-11 | 2014-05-28 | 济钢集团国际工程技术有限公司 | Dismountable pipeline plugging device |
-
2012
- 2012-08-14 CN CN 201220400277 patent/CN202733322U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102809018A (en) * | 2012-08-14 | 2012-12-05 | 张家港华东锅炉有限公司 | Pipe orifice seal device for pipe hydraulic test |
| CN103822045A (en) * | 2014-03-11 | 2014-05-28 | 济钢集团国际工程技术有限公司 | Dismountable pipeline plugging device |
| CN103822045B (en) * | 2014-03-11 | 2016-01-20 | 济钢集团国际工程技术有限公司 | The detachable plugging device of pipeline |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130213 Termination date: 20180814 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |