CN103674689A - Internal-expanded hydraulic pressure tool for minor-caliber pipe - Google Patents
Internal-expanded hydraulic pressure tool for minor-caliber pipe Download PDFInfo
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- CN103674689A CN103674689A CN201310677631.2A CN201310677631A CN103674689A CN 103674689 A CN103674689 A CN 103674689A CN 201310677631 A CN201310677631 A CN 201310677631A CN 103674689 A CN103674689 A CN 103674689A
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- hydraulic pressure
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Abstract
The invention relates to an internal-expanded hydraulic pressure tool for a minor-caliber pipe. When the hydraulic pressure testing of the minor-caliber pipe is carried out, the existing hydraulic pressure tool cannot meet the requirements of hydraulic pressure tests due to small diameter of a pipe orifice and high hydraulic pressure testing pressure. The internal-expanded hydraulic pressure tool provided by the invention comprises a water-draining handle (2), wherein the water-draining handle (2) is arranged on a pull rod (3), a nut (4) is arranged at the middle part of the pull rod (3), an expanding piece (6) is arranged at the bottom of the pull rod (3), a rubber ring (7) is arranged on the expanding piece (6), two taper sleeves (8) are arranged on an inner ring of the expanding piece (6), two retainer rings (10) are arranged on the pull rod (3) at the lower ends of the taper sleeves (8), and a sealing gasket (9) is arranged in the middle of the retainer ring (10). The internal-expanded hydraulic pressure tool provided by the invention is suitable for mechanically sealing the end part of the minor-caliber pipe.
Description
technical field:
the present invention relates to a kind of small-bore pipe internal-expansion type Tool for Hydraulic.
background technology:
when carrying out the small-bore pipe hydraulic testing, because nozzle diameter is little, hydraulic test pressure is large, and existing Tool for Hydraulic all can not meet this type of hydraulic testing requirement.Therefore, this type of hydraulic testing can only seal by the mode at pipe end welding end lid.After the hydraulic testing finishes, need end cap to slice off, and line up carries out machining again.This kind of sealing means increases manufacturing process, increased workman's labour intensity, affected the product manufacturing cycle, to production, brought great inconvenience.
summary of the invention:
the object of the present invention is to provide a kind of small-bore pipe internal-expansion type Tool for Hydraulic.
the object of the present invention is achieved like this:
a kind of small-bore pipe internal-expansion type Tool for Hydraulic, its composition comprises: flush handle, described flush handle is arranged on pull bar, described pull bar middle part is provided with nut, described pull bar bottom is provided with swollen, rubber ring is installed on described swollen, and swollen described inner ring is provided with two tapered sleeves, two back-up rings are installed on the pull bar of described tapered sleeve lower end, sealing gasket is installed in the middle of described back-up ring.
described small-bore pipe internal-expansion type Tool for Hydraulic, has cone tank on swollen described outside surface, and the described external diameter of swollen is fixed, and the two ends diameter of the described endoporus of swollen is greater than the mid diameter of endoporus.
described small-bore pipe internal-expansion type Tool for Hydraulic, the internal diameter of described tapered sleeve is fixed, and external diameter one end of described tapered sleeve is greater than the other end.
described small-bore pipe internal-expansion type Tool for Hydraulic, has through hole in the middle of described pull bar, in described flush handle, has through hole, and rubber blanket is installed in the middle of described flush handle and pull bar.
beneficial effect:
the present invention by locking the nut on pull bar swollen mechanical swelling solved to original Tool for Hydraulic in the mode of tube wall cannot the problem of mechanical grip on small-bore pipe.Swollen swelling, in tube wall, by back-up ring crush seal, pad the function of existing water-pressure sealed.
2. the present invention is by flush handle, and rotation flush handle realizes the process of pressure release after the hydraulic testing, draining.
3. the present invention is simple in structure, easy to operate, efficiency is high, applied widely, improved small-bore pipe hydraulic test efficiency, guarantee quick, safe the carrying out of the small-bore pipe hydraulic testing.Solve the small-bore pipe hydraulic testing and cannot carry out the technical barrier that mechanical grip can only be covered in end welding end, applicable multiple caliber.
accompanying drawing explanation:
accompanying drawing 1 is structural representation of the present invention.In figure, 1 is rubber blanket, and 2 is flush handle, and 3 is pull bar, and 4 is nut, and 5 is packing ring, and 6 is swollen, and 7 is rubber ring, and 8 is tapered sleeve, and 9 is sealing gasket, and 10 is back-up ring.
embodiment:
embodiment 1:
a kind of small-bore pipe internal-expansion type Tool for Hydraulic, its composition comprises: flush handle 2, described flush handle 2 is arranged on pull bar 3, described pull bar 3 middle parts are provided with nut 4, described pull bar 3 bottoms are provided with swollen 6, rubber ring 7 are installed on described swollen 6, and swollen described 6 inner rings are provided with two tapered sleeves 8, on the pull bar 3 of described tapered sleeve 8 lower ends, two back-up rings 10 are installed, in the middle of described back-up ring 10, sealing gasket 9 are installed.
embodiment 2:
according to the small-bore pipe internal-expansion type Tool for Hydraulic described in embodiment 1, on swollen described 6 outside surfaces, have cone tank, the described external diameter of swollen 6 is fixed, and the two ends diameter of the described endoporus of swollen 6 is greater than the mid diameter of endoporus.
embodiment 3:
according to the small-bore pipe internal-expansion type Tool for Hydraulic described in embodiment 1, the internal diameter of described tapered sleeve 8 is fixed, and external diameter one end of described tapered sleeve 8 is greater than the other end.
embodiment 4:
according to the small-bore pipe internal-expansion type Tool for Hydraulic described in embodiment 1, in the middle of described pull bar 3, have through hole, in described flush handle 2, have through hole, described flush handle 2 and the middle rubber blanket 1 that is provided with of pull bar 3.
Claims (4)
1. a small-bore pipe internal-expansion type Tool for Hydraulic, its composition comprises: flush handle, it is characterized in that: described flush handle is arranged on pull bar, described pull bar middle part is provided with nut, described pull bar bottom is provided with swollen, rubber ring is installed on described swollen, and swollen described inner ring is provided with two tapered sleeves, two back-up rings are installed on the pull bar of described tapered sleeve lower end, sealing gasket is installed in the middle of described back-up ring.
2. small-bore pipe internal-expansion type Tool for Hydraulic according to claim 1, is characterized in that: on swollen described outside surface, have cone tank, the described external diameter of swollen is fixed, and the two ends diameter of the described endoporus of swollen is greater than the mid diameter of endoporus.
3. small-bore pipe internal-expansion type Tool for Hydraulic according to claim 1 and 2, is characterized in that: the internal diameter of described tapered sleeve is fixed, and external diameter one end of described tapered sleeve is greater than the other end.
4. according to the small-bore pipe internal-expansion type Tool for Hydraulic described in claim 1 or 2 or 3, it is characterized in that: in the middle of described pull bar, have through hole, in described flush handle, have through hole, rubber blanket is installed in the middle of described flush handle and pull bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310677631.2A CN103674689A (en) | 2013-12-13 | 2013-12-13 | Internal-expanded hydraulic pressure tool for minor-caliber pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310677631.2A CN103674689A (en) | 2013-12-13 | 2013-12-13 | Internal-expanded hydraulic pressure tool for minor-caliber pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103674689A true CN103674689A (en) | 2014-03-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310677631.2A Pending CN103674689A (en) | 2013-12-13 | 2013-12-13 | Internal-expanded hydraulic pressure tool for minor-caliber pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103674689A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104764655A (en) * | 2015-03-25 | 2015-07-08 | 中国第一重型机械集团大连加氢反应器制造有限公司 | Adapter tube sealing device for hydrostatic test and use method thereof |
| CN105149703A (en) * | 2015-09-30 | 2015-12-16 | 陕西法士特齿轮有限责任公司 | Externally-tightening and quick-changing hobbing tool for shafts |
| CN107966356A (en) * | 2017-11-30 | 2018-04-27 | 浙江宁松热能锅炉设备有限公司 | Water pressure test mouth plugging apparatus |
| CN111964837A (en) * | 2020-07-29 | 2020-11-20 | 中国航发北京航科发动机控制***科技有限公司 | Device and method for testing centrifugal flyweight and rotating speed of aircraft engine |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101672717A (en) * | 2009-08-28 | 2010-03-17 | 无锡海源重工股份有限公司 | Water pressure inner expansion plug device |
| CN203587433U (en) * | 2013-12-13 | 2014-05-07 | 哈尔滨锅炉厂有限责任公司 | Inner expanding water pressure tool of small-bore pipe |
-
2013
- 2013-12-13 CN CN201310677631.2A patent/CN103674689A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101672717A (en) * | 2009-08-28 | 2010-03-17 | 无锡海源重工股份有限公司 | Water pressure inner expansion plug device |
| CN203587433U (en) * | 2013-12-13 | 2014-05-07 | 哈尔滨锅炉厂有限责任公司 | Inner expanding water pressure tool of small-bore pipe |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104764655A (en) * | 2015-03-25 | 2015-07-08 | 中国第一重型机械集团大连加氢反应器制造有限公司 | Adapter tube sealing device for hydrostatic test and use method thereof |
| CN104764655B (en) * | 2015-03-25 | 2017-08-25 | 中国第一重型机械集团大连加氢反应器制造有限公司 | A kind of water pressure test adapter sealing device and its application method |
| CN105149703A (en) * | 2015-09-30 | 2015-12-16 | 陕西法士特齿轮有限责任公司 | Externally-tightening and quick-changing hobbing tool for shafts |
| CN107966356A (en) * | 2017-11-30 | 2018-04-27 | 浙江宁松热能锅炉设备有限公司 | Water pressure test mouth plugging apparatus |
| CN111964837A (en) * | 2020-07-29 | 2020-11-20 | 中国航发北京航科发动机控制***科技有限公司 | Device and method for testing centrifugal flyweight and rotating speed of aircraft engine |
| CN111964837B (en) * | 2020-07-29 | 2022-05-13 | 中国航发北京航科发动机控制***科技有限公司 | Device and method for testing centrifugal flyweight and rotating speed of aircraft engine |
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Application publication date: 20140326 |
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