CN201386906Y - Connector for hydraulic test of high-pressure seamless steel cylinder - Google Patents
Connector for hydraulic test of high-pressure seamless steel cylinder Download PDFInfo
- Publication number
- CN201386906Y CN201386906Y CN200920114417U CN200920114417U CN201386906Y CN 201386906 Y CN201386906 Y CN 201386906Y CN 200920114417 U CN200920114417 U CN 200920114417U CN 200920114417 U CN200920114417 U CN 200920114417U CN 201386906 Y CN201386906 Y CN 201386906Y
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- China
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- sleeve
- connector
- fittings body
- connecting pipe
- locking nut
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- Expired - Lifetime
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Abstract
The utility model discloses a connector for hydraulic test of a high-pressure seamless steel cylinder, which comprises a connector body connected with a bottle mouth in a sealed manner and a connecting pipe arranged in the connector body and used for filling water. The lower end of the connecting pipe penetrates through the connector head, an extruding body is fixedly connected at the end part of the lower end, a sealing gasket unit used for sealing is sheathed on the connecting pipe between the extruding body and the connector body, a radial protuberance is arranged at the upper end of the connecting pipe, a locking nut and a sleeve capable of vertically sliding are sheathed at the upper part of the connector body, a flat key is arranged between the sleeve and the connector body, the locking nut drives the sleeve, the connecting pipe and the extruding body to rise up when moving upwards, and the extruding body is used for extruding the sealing gasket so that the sealing gasket is sealed with the bottle mouth. The connector has good sealing performance, avoids the problem of planar leakage due to deformation of a red steel pad of paper or poor quality of bottle mouth plane processing, also saves a hydraulic mechanism in the prior art and is more convenient and simpler in installation.
Description
Technical field
The utility model relates to the joint of using when the high-pressure seamless steel cylinder carried out the internal test method hydrostatic test, belongs to the special device of a kind of high-pressure seamless gas cylinder internal test method hydrostatic test.
Background technique
High-pressure seamless gas cylinder is widely used in equipping with gas storage on industry, the ship, and automobile dynamic system is with storing compressed natural gas (CNG)., make in the production process in the Security that fills, transports, uses each side, reliability in order to ensure it, pursue by manufacturer's standard requirement bottle and only carry out the detection that hydraulic test method carries out Security, reliability at it.
It is common forced that the joint that the hydrostatic test is adopted mostly is.As shown in Figure 1, fittings body 3 adopts red steel paper pad 1 to carry out plane sealing with the bottle mouth of gas cylinder joint, holds out against the surface of contact of fittings body 3 and bottleneck by hydraulic oil cylinder driving depression bar 2.After pressing in bearing in the bottle, plastic deformation easily takes place in red steel paper pad 1, and the Transverse plane degree of finish of bottleneck, planeness do not reach when requiring, and leak on fittings body 3 and plane, bottleneck joint, and hydrostatic test operation can't normally be carried out.
Summary of the invention
It is a kind of reasonable in design that the utility model provides, structure is tight, the simple load and unload joint that is used for the hydrostatic test of high-pressure seamless steel cylinder, remedy the common forced joint of the hydrostatic test because of distortion of red steel paper pad or the bad plane leakage problem that produces of bottleneck plane quality of processing, sealing is effectively guaranteed.
The joint that is used for the hydrostatic test of high-pressure seamless steel cylinder of the present utility model comprises being used for the fittings body that is tightly connected with bottleneck, is arranged on the adapter that is used for water filling in the fittings body.The lower end of described adapter passes fittings body, and this end end is fixedly connected with pressing body, cover is useful on the gasket seal group of sealing in the adapter between pressing body and the fittings body, the upper end of taking over is provided with radial protrusion, be with locking nut and the sleeve that can slide up and down on fittings body top, be provided with flat key between sleeve and the fittings body, drive sleeve, adapter and pressing body when locking nut moves upward and rise, pressing body crush seal pad makes the sealing of gasket seal and bottleneck.
For fittings body and bottleneck better are tightly connected, the bottom of fittings body is provided with the conical external screw thread that matches with whorl of bottleneck.
On fittings body, can be provided with handle with sleeve, rotate by the lever drive fittings body.
On locking nut, can be provided with handle with sleeve, by the rotation of lever drive locking nut.
Described pressing body is a set screw nut, is connected with the adapter lower end by screw thread.
The utility model has the advantages that:
1, adopt tapered thread and bottleneck to be sealed and matched, seal washer is set below fittings body then cooperates with the bottle bore seal, sealability is better, has prevented because of distortion of red steel paper pad or the bad plane leakage problem that produces of bottleneck plane quality of processing;
2, carry out the secondary seal of seal washer by locking nut, adapter and pressing body, save the hydraulic mechanism of prior art, install more convenient simple.
Description of drawings
Fig. 1 is the structural representation of common forced joint;
Fig. 2 is the structural representation of joint of the present utility model;
Fig. 3 is the scheme of installation of joint of the present utility model.
Embodiment
The structural representation of joint as shown in Figure 2, with the fittings body 4 that bottleneck is tightly connected, the tapered thread 5 of lower end for matching with whorl of bottleneck is provided with the screw that connects handle with sleeve 6 at the fittings body middle part, and handle with sleeve 6 is fixedlyed connected with fittings body 4 by screw thread.
Fittings body 4 inside are provided with the cavity of up/down perforation, and take over 9 and be arranged in the cavity, and by O-ring seals 10 and cavity inner wall sealing.
Taking over 9 bottoms that pass fittings body 4, be with gasket seal group 7.Taking over 9 lower ends fixedlys connected with pressing body.Describedly squeeze that to take body by force can be set screw nut 8, and take over 9 lower ends by being threaded.
As shown in Figure 3, the tapered thread of fittings body 4 is connected with the bottle internal thread, plays interconnect function on the one hand, plays the effect of check screw thread on the other hand.Be connected with handle with sleeve 15 on the locking nut 12.Handle with sleeve 15 drives when rising on sleeves 13 and flat key 14 positions, and sleeve 13 is by the projection 11 of apical grafting pipe 9, drives to take over 9 and rise along fittings body 4 inner chambers.Take over the set screw nut 8 crush seal shim pack 7 of 9 lower ends, make its stressed outside expansion, it is big that size becomes, and in the tapered thread sealing, carries out favourable double seal.
When carrying out the hydrostatic test, bottle is subjected to the effect of internal pressure, the effect that gasket seal group 7 is pressed in also being subjected to simultaneously with adapter 9, gasket seal group 7 is adjacent to and outwards rises big, seal more reliable, fittings body 4 with take over 9 places 10 sealings of O RunddichtringO arranged, be not prone to leakage.After the off-test, unscrew locking nut 12, resiliently deformable takes place in gasket seal group 7, restores, and the handle 6 on the swivel body 4 can safe ready be pulled down joint.
Claims (5)
1, a kind of joint that is used for the hydrostatic test of high-pressure seamless steel cylinder, comprise and be used for the fittings body (4) that is tightly connected with bottleneck, be arranged on the adapter that is used for water filling (9) in the fittings body (4), it is characterized in that: the lower end of described adapter (9) passes fittings body (4), and this end end is fixedly connected with pressing body (8), the gasket seal group (7) that cover is useful on sealing is gone up in adapter (9) between pressing body (8) and the fittings body (4), the upper end of taking over (9) is provided with radial protrusion (11), be with locking nut (12) and the sleeve that can slide up and down (13) on fittings body (4) top, be provided with flat key (14) between sleeve (13) and the fittings body (4), locking nut (12) drives sleeve (13) when moving upward, taking over (9) and pressing body (8) rises, pressing body (8) crush seal shim pack (7) makes gasket seal group (7) and bottleneck sealing.
2, joint according to claim 1 is characterized in that: the bottom of described fittings body (4) is provided with conical external screw thread.
3, joint according to claim 1 is characterized in that: described fittings body (4) is provided with handle with sleeve (6).
4, joint according to claim 1 is characterized in that: described locking nut (12) is provided with handle with sleeve (15).
5, joint according to claim 1 is characterized in that: described pressing body (8) is a set screw nut, is connected with adapter (9) lower end by screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920114417U CN201386906Y (en) | 2009-02-26 | 2009-02-26 | Connector for hydraulic test of high-pressure seamless steel cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920114417U CN201386906Y (en) | 2009-02-26 | 2009-02-26 | Connector for hydraulic test of high-pressure seamless steel cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201386906Y true CN201386906Y (en) | 2010-01-20 |
Family
ID=41579441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920114417U Expired - Lifetime CN201386906Y (en) | 2009-02-26 | 2009-02-26 | Connector for hydraulic test of high-pressure seamless steel cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201386906Y (en) |
-
2009
- 2009-02-26 CN CN200920114417U patent/CN201386906Y/en not_active Expired - Lifetime
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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: 20100120 |
|
| CX01 | Expiry of patent term |