CN203587433U - Inner expanding water pressure tool of small-bore pipe - Google Patents
Inner expanding water pressure tool of small-bore pipe Download PDFInfo
- Publication number
- CN203587433U CN203587433U CN201320819080.4U CN201320819080U CN203587433U CN 203587433 U CN203587433 U CN 203587433U CN 201320819080 U CN201320819080 U CN 201320819080U CN 203587433 U CN203587433 U CN 203587433U
- Authority
- CN
- China
- Prior art keywords
- small
- bore pipe
- water pressure
- swollen
- pull bar
- 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 - Lifetime
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title abstract 8
- 238000007789 sealing Methods 0.000 claims abstract description 8
- 238000012360 testing method Methods 0.000 abstract description 12
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000008961 swelling Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model relates to an inner expanding water pressure tool of a small-bore pipe. When a water pressure test of the small-bore pipe is performed, the diameter of a pipe port is small, the test pressure of water pressure is large, and the existing water pressure tool can not meet a water pressure test requirement. The inner expanding water pressure tool provided by the utility model comprises a drainage handle (2), wherein the drainage handle (2) is arranged on a pull rod (3); the middle of the pull rod (3) is provided with a nut (4), the bottom of the pull rod (3) is provided with an expanding piece (6), and the expanding piece (6) is provided with a rubber ring (7); an inner ring of the expanding piece (6) is provided with two cone sleeves (8), the pull rod (3) arranged on the lower ends of the cone sleeves (8) are provided with two check rings (10), and the middles of the check rings (10) are provided with sealing gaskets (9). The inner expanding water pressure tool of the small-bore pipe provided by the utility model is used for sealing the end part of the small-bore pipe in a mechanical manner.
Description
technical field:
the utility model 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 be by sealing in the mode of 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.
utility model content:
the purpose of this utility model is to provide a kind of small-bore pipe internal-expansion type Tool for Hydraulic.
the purpose of this utility model is achieved in that
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 utility model 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.
. the utility model is by flush handle, and rotation flush handle realizes the process of pressure release after the hydraulic testing, draining.
the utility model is simple in structure, easy to operate, efficiency is high, applied widely, improved small-bore pipe hydraulic test efficiency, guarantee the small-bore pipe hydraulic testing quick, safe carrying out.Solved the small-bore pipe hydraulic testing cannot carry out mechanical grip can only be at the technical barrier of end welding end lid, be suitable for multiple caliber.
accompanying drawing explanation:
accompanying drawing 1 is structural representation of the present utility model.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. small-bore pipe internal-expansion type Tool for Hydraulic according to claim 1 and 2, 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 |
|---|---|---|---|
| CN201320819080.4U CN203587433U (en) | 2013-12-13 | 2013-12-13 | Inner expanding water pressure tool of small-bore pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320819080.4U CN203587433U (en) | 2013-12-13 | 2013-12-13 | Inner expanding water pressure tool of small-bore pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203587433U true CN203587433U (en) | 2014-05-07 |
Family
ID=50585336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320819080.4U Expired - Lifetime CN203587433U (en) | 2013-12-13 | 2013-12-13 | Inner expanding water pressure tool of small-bore pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203587433U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103674689A (en) * | 2013-12-13 | 2014-03-26 | 哈尔滨锅炉厂有限责任公司 | Internal-expanded hydraulic pressure tool for minor-caliber pipe |
-
2013
- 2013-12-13 CN CN201320819080.4U patent/CN203587433U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103674689A (en) * | 2013-12-13 | 2014-03-26 | 哈尔滨锅炉厂有限责任公司 | Internal-expanded hydraulic pressure tool for minor-caliber pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140507 |
|
| CX01 | Expiry of patent term |