CN203519260U - Tool for testing hydraulic pressure of internal screwed pipe - Google Patents
Tool for testing hydraulic pressure of internal screwed pipe Download PDFInfo
- Publication number
- CN203519260U CN203519260U CN201320489648.0U CN201320489648U CN203519260U CN 203519260 U CN203519260 U CN 203519260U CN 201320489648 U CN201320489648 U CN 201320489648U CN 203519260 U CN203519260 U CN 203519260U
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- CN
- China
- Prior art keywords
- jacking block
- rifled tube
- pull bar
- hydraulic pressure
- screwed pipe
- 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.)
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Abstract
The utility model relates to a tool for testing the hydraulic pressure of an internal screwed pipe. The tool is inserted into the internal screwed pipe. The tool comprises a pull bar which is inserted into the internal screwed pipe after penetrating through a fastening nut and an adjusting nut. Under the adjusting nut, a first support block is sleeved on the pull bar; a ring of compact block is arranged between the first support block and the top of the internal screwed pipe; a first rubber sealing ring is arranged outside the first support block and under the compact block; under the first rubber sealing ring, a second support block is sleeved on the first support block; a second rubber sealing ring is arranged at the lower end of the first support block and at the upper end of the second support block; three expansion sheets are arranged at the lower end of the pull bar; multiple second gaskets for reducing wearing of the compact block are arranged between the compact block and the internal screwed pipe; and a first gasket for reducing the force required by rotation of nuts is arranged between the fastening nut and the adjusting nut. The tool of the utility model is novel in structure, convenient to prepare and dismount, low in cost, good in sealing performance, resistant to pressure and free of leakage.
Description
Technical field
The utility model relates to a kind of frock, especially a kind of seamless steel tube for boiler rifled tube hydraulic pressure frock.
Background technology
In order to check intensity and the tightness of pressure-containing member, general pressure-containing member produce or in all to carry out working pressure test after repairing light maintenance, after the productions such as seamless steel tube for boiler, must do the hydraulic testing by root.Rifled tube in water-cooled wall apparatus is used more common now.More difficult to this class rifled tube hydraulic testing, unrealistic by classic method, because tube wall has screw thread, cannot seal by double thread inwall.
Summary of the invention
In order to address the above problem, the utility model provides a kind of novel internal-expansion type hydraulic testing hermetically-sealed construction, has successfully solved the hydraulic testing difficulty of rifled tube.
In order to achieve the above object, the utility model is achieved through the following technical solutions:
The utility model is a kind of rifled tube hydraulic pressure frock, in rifled tube, insert frock, frock comprises pull bar, pull bar is inserted in rifled tube after passing clamp nut and adjusting nut, below adjusting nut, the outside of pull bar is arranged with the first jacking block, on the top of the first jacking block and rifled tube, be provided with a circle compact heap, outside the first jacking block, compact heap below is arranged with the first rubber seal, below the first rubber seal, the first jacking block be arranged with the second jacking block outward, lower end at the first jacking block, the upper end of the second jacking block is provided with the second rubber seal, in the lower end of pull bar, be provided with three swollen.
Further improvement of the utility model is: between compact heap and rifled tube, be provided with the second packing ring that reduces compact heap wearing and tearing.
Further improvement of the utility model is: the first packing ring that is provided with the required power of several minimizing nut rotations in the middle of clamp nut and adjusting nut.
Further improvement of the utility model is: three swollen is swollen with sawtooth.
Further improvement of the utility model is: the xsect of the first jacking block is T-shaped.
The beneficial effects of the utility model are: frock of the present utility model is by rotating clamp nut, promote compact heap by the first rubber seal distending, the first rubber seal is positioned on the shiny surface surface of rifled tube, after distending, play sealing function, rotate rotation adjusting nut, promoting the second jacking block seals the second rubber seal distending, rotate again clamp nut and tighten up pull bar conehead part, make three swollen embeddings with sawtooth on frock top tightly at rifled tube inwall, thereby reach the effect of sealing, the first packing ring has reduced the required power of adjusting nut, the second packing ring has reduced the wearing and tearing of compact heap, played labour-saving effect.
The utility model novel structure, easy to make, with low cost, good airproof performance, withstand voltage, nothing is leaked, easy accessibility.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Wherein: 1-pull bar, 2-clamp nut, 3-the first packing ring, 4-adjusting nut, 5-the first jacking block, 6-compact heap, 7-the second packing ring, 8-the first rubber seal, 9-the second jacking block, 10-the second rubber seal, 11-is swollen slice, 12-rifled tube.
Embodiment
In order to deepen, to understanding of the present utility model, below in conjunction with drawings and Examples, the utility model to be described in further detail, this embodiment, only for explaining the utility model, does not form and limits protection domain of the present utility model.
As shown in Fig. 1, the utility model is a kind of rifled tube hydraulic pressure frock, in the interior insertion frock of rifled tube 12, described frock comprises pull bar 1, after passing clamp nut 2 and adjusting nut 4, described pull bar 1 is inserted in described rifled tube 12, in the middle of described clamp nut 2 and adjusting nut 4, be provided with the first packing ring 3 of the required power of several minimizing nut rotations, below described adjusting nut 4, the outside of described pull bar 1 is arranged with the first jacking block 5, the xsect of described the first jacking block 5 is T-shaped, at described the first jacking block 5, be provided with a circle compact heap 6 with the top of described rifled tube 12, between described compact heap 6 and described rifled tube 12, be provided with the second packing ring 7 that reduces described compact heap 6 wearing and tearing, outside described the first jacking block 5, described compact heap 6 belows are arranged with the first rubber seal 8, below described the first rubber seal 8, described outer second jacking block 9 that is arranged with of the first jacking block 5, lower end at described the first jacking block 5, the upper end of described the second jacking block 9 is provided with the second rubber seal 10, in the lower end of described pull bar 1, be provided with three swollen 11, described three swollen 11 is swollen with sawtooth.
The course of work of frock of the present utility model is: by rotating clamp nut, promote compact heap by the first rubber seal distending, the first rubber seal is positioned on the shiny surface surface of rifled tube, after distending, play sealing function, rotate rotation adjusting nut, promoting the second jacking block seals the second rubber seal distending, rotate again clamp nut and tighten up pull bar conehead part, make three swollen embeddings with sawtooth on frock top tightly at rifled tube inwall, thereby reach the effect of sealing, the first packing ring has reduced the required power of adjusting nut, the second packing ring has reduced the wearing and tearing of compact heap, played labour-saving effect.
The utility model has changed the problem that original frock cannot seal rifled tube, solved the hydraulic testing seal request of rifled tube, utilize screw cap principle that the helical motion of nut is transformed into along the rectilinear motion of bolt axis, very little reason is converted into the very large power that a bolt shaft makes progress, reaches the needed power of sealing.
The utility model novel structure, easy to make, with low cost, good airproof performance, withstand voltage, nothing is leaked, easy accessibility.
Claims (5)
1. a rifled tube hydraulic pressure frock, in rifled tube (12), insert frock, described frock comprises pull bar (1), described pull bar (1) is inserted in described rifled tube (12) after passing clamp nut (2) and adjusting nut (4), it is characterized in that: the below in described adjusting nut (4), the outside of described pull bar (1) is arranged with the first jacking block (5), on described the first jacking block (5) and the top of described rifled tube (12), be provided with a circle compact heap (6), outside described the first jacking block (5), described compact heap (6) below is arranged with the first rubber seal (8), in described the first rubber seal (8) below, outer the second jacking block (9) that is arranged with of described the first jacking block (5), lower end at described the first jacking block (5), the upper end of described the second jacking block (9) is provided with the second rubber seal (10), in the lower end of described pull bar (1), be provided with three swollen (11).
2. a kind of rifled tube hydraulic pressure frock according to claim 1, is characterized in that: between described compact heap (6) and described rifled tube (12), be provided with the second packing ring (7) that reduces described compact heap (6) wearing and tearing.
3. a kind of rifled tube hydraulic pressure frock according to claim 1, is characterized in that: the first packing ring (3) that is provided with the required power of several minimizing nut rotations in the middle of described clamp nut (2) and adjusting nut (4).
4. a kind of rifled tube hydraulic pressure frock according to claim 1, is characterized in that: described three swollen (11) are swollen with sawtooth.
5. a kind of rifled tube hydraulic pressure frock according to claim 1, is characterized in that: the xsect of described the first jacking block (5) is T-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320489648.0U CN203519260U (en) | 2013-08-13 | 2013-08-13 | Tool for testing hydraulic pressure of internal screwed pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320489648.0U CN203519260U (en) | 2013-08-13 | 2013-08-13 | Tool for testing hydraulic pressure of internal screwed pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203519260U true CN203519260U (en) | 2014-04-02 |
Family
ID=50378178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320489648.0U Expired - Fee Related CN203519260U (en) | 2013-08-13 | 2013-08-13 | Tool for testing hydraulic pressure of internal screwed pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203519260U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105258859A (en) * | 2015-11-12 | 2016-01-20 | 江苏绿叶锅炉有限公司 | Inner threaded pipe pump water tool |
| CN106950114A (en) * | 2017-03-29 | 2017-07-14 | 中国石油大学(华东) | One-way hydraulic drive-type totally cleaves line pipeline break analogue experiment installation and experimental method |
| CN107870129A (en) * | 2017-12-14 | 2018-04-03 | 南京新核复合材料有限公司 | Heavy-caliber fiber reinforced plastic pipe jacket type water test unit |
| KR102474992B1 (en) * | 2022-03-22 | 2022-12-05 | 강봉중 | Jig apparatus for water pressure test |
| EP3995727A4 (en) * | 2019-07-03 | 2023-09-27 | Kang, Sugjae | Pipe sealing device |
-
2013
- 2013-08-13 CN CN201320489648.0U patent/CN203519260U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105258859A (en) * | 2015-11-12 | 2016-01-20 | 江苏绿叶锅炉有限公司 | Inner threaded pipe pump water tool |
| CN106950114A (en) * | 2017-03-29 | 2017-07-14 | 中国石油大学(华东) | One-way hydraulic drive-type totally cleaves line pipeline break analogue experiment installation and experimental method |
| CN106950114B (en) * | 2017-03-29 | 2019-07-16 | 中国石油大学(华东) | One-way hydraulic drive-type totally cleaves line pipeline break imitative experimental appliance and experimental method |
| CN107870129A (en) * | 2017-12-14 | 2018-04-03 | 南京新核复合材料有限公司 | Heavy-caliber fiber reinforced plastic pipe jacket type water test unit |
| EP3995727A4 (en) * | 2019-07-03 | 2023-09-27 | Kang, Sugjae | Pipe sealing device |
| KR102474992B1 (en) * | 2022-03-22 | 2022-12-05 | 강봉중 | Jig apparatus for water pressure test |
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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: 20140402 Termination date: 20180813 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |