CN204328271U - A kind of vacuum leak hunting joint - Google Patents
A kind of vacuum leak hunting joint Download PDFInfo
- Publication number
- CN204328271U CN204328271U CN201420694800.3U CN201420694800U CN204328271U CN 204328271 U CN204328271 U CN 204328271U CN 201420694800 U CN201420694800 U CN 201420694800U CN 204328271 U CN204328271 U CN 204328271U
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- CN
- China
- Prior art keywords
- plug
- pipe joint
- joint
- periphery
- gland
- 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 - Fee Related
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Abstract
The utility model relates to a kind of vacuum leak hunting joint in leak hunting technology field, comprise pipe joint, plug and nut gland, described pipe joint is connected with the sealing joint of to be checked, described pipe joint one end stuffing box gland is connected to plug periphery, described pipe joint periphery has been threaded nut gland, plug periphery on the upside of described pipe joint is provided with the outer step for stop nut gland position, described nut suitable for reading be provided with outer step against in step, the plug periphery on the upside of described nut gland is provided with circlip.Monitoring tap of the present utility model, is connected by the outlet of pipe joint with cooler to be checked, is tightly connected between plug and pipe joint, and by nut gland lock sealing, can realize the vacuum seal of cooler outlet.Sealing configuration of the present utility model is by screw-threaded coupling, and easy accessibility, sealing is reliable.
Description
Technical field
The utility model relates to leak hunting technology field, a kind of monitoring tap of particularly cooler vacuum leak hunting.
Background technique
Need to hunt leak before the finished product of cooler or condenser class cooling unit dispatches from the factory, inflating air sealing can be adopted to hunt leak or vacuumize leak detection.Whether more common is tightness leak detection, is filled with certain pressed gas, puts into water in device, observe and leak gas and leakage point.This kind of leak hunting method needs by plug, one of import and export to be blocked, and when inflating in cooler, plug bears certain outside pressure, if Rig up error, easily collapses suddenly to hurt sb.'s feelings during pressurization.And vacuum leak hunting adopts leak detection plug to block one of import and export wherein, make cooler produce certain degree of vacuum, plug can not be there is and collapse the problem to hurt sb.'s feelings.The plug that now vacuum is in the art leaked generally adopts the plug of certain taper to block up, and inhales stifled, take out inconvenience after leak detection by negative pressure, easily damages connection mouth or the plug of cooler.
Model utility content
The utility model, for prior art Problems existing, provides a kind of vacuum leak hunting joint for cooler or condenser vacuum leak hunting.
The purpose of this utility model realizes like this, a kind of vacuum leak hunting joint, comprise pipe joint, plug and nut gland, described pipe joint is connected with the sealing joint of to be checked, described pipe joint one end stuffing box gland is connected to plug periphery, described pipe joint periphery has been threaded nut gland, plug periphery on the upside of described pipe joint is provided with the outer step for stop nut gland position, described nut suitable for reading be provided with outer step against in step, the plug periphery on the upside of described nut gland is provided with circlip.
Monitoring tap of the present utility model, is connected by the outlet of pipe joint with cooler to be checked, is tightly connected between plug and pipe joint, and by nut gland lock sealing, can realize the vacuum seal of cooler outlet.Sealing configuration of the present utility model is by screw-threaded coupling, and easy accessibility, sealing is reliable.
For ensureing sealability, the periphery that described plug coordinates with pipe seal is provided with seal groove, is provided with seal ring in described seal groove.
For improving sealability further, the circumference that described plug coordinates with pipe seal is that the conical surface seal shunk to plugged end direction coordinates.This kind of conical seal (contact) face structure, improves the sealability of sealing configuration further.
For a step improves sealability again, between end corresponding with pipe joint on the downside of the limited step of described plug, be provided with sealing gasket.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the structure of vacuum leak hunting joint of the present utility model.
Wherein, 1 circlip, 2 sealing gaskets, 3 seal rings, 4 nut glands, 5 plugs, 6 pipe joints.
Embodiment
Be illustrated in figure 1 vacuum leak hunting joint of the present utility model, comprise pipe and connect 6, plug 5 and nut gland 4, pipe joint 6 is connected with the sealing joint of to be checked, pipe joint 6 one end stuffing box gland is connected to plug 5 periphery, pipe joint 6 periphery has been threaded nut gland 4, plug 5 periphery on the upside of pipe joint 6 is provided with the outer step for stop nut gland 4 position, nut gland 4 suitable for reading be provided with outer step against in step, plug 5 periphery on the upside of nut gland 4 is provided with circlip 1; The periphery that plug 5 and pipe joint 6 are sealed and matched is provided with seal groove, is provided with seal ring 3 in seal groove; The circumference that plug 5 and pipe joint 6 are sealed and matched is that the conical surface seal shunk to plugged end direction coordinates.This kind of conical seal (contact) face structure, improves the sealability of sealing configuration further; Sealing gasket 2 is provided with between end corresponding with pipe joint 6 on the downside of the limited step of plug 5.
Monitoring tap of the present utility model, is connected by the outlet of pipe joint 6 with cooler to be checked, is tightly connected between plug 5 and pipe joint 6, and by nut gland 4 lock sealing, can realize the vacuum seal of cooler outlet.Sealing configuration of the present utility model is by screw-threaded coupling, and easy accessibility, sealing is reliable.
Claims (4)
1. a vacuum leak hunting joint, comprise pipe joint, plug and nut gland, described pipe joint is connected with the sealing joint of to be checked, it is characterized in that, described pipe joint one end stuffing box gland is connected to plug periphery, and described pipe joint periphery has been threaded nut gland, and the plug periphery on the upside of described pipe joint is provided with the outer step for stop nut gland position, described nut suitable for reading be provided with outer step against in step, the plug periphery on the upside of described nut gland is provided with circlip.
2. vacuum leak hunting joint according to claim 1, is characterized in that, the periphery that described plug coordinates with pipe seal is provided with seal groove, is provided with seal ring in described seal groove.
3. vacuum leak hunting joint according to claim 1, is characterized in that, the circumference that described plug coordinates with pipe seal is that the conical surface seal shunk to plugged end direction coordinates.
4. vacuum leak hunting joint according to claim 1, is characterized in that, is provided with sealing gasket between end corresponding with pipe joint on the downside of the limited step of described plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420694800.3U CN204328271U (en) | 2014-11-19 | 2014-11-19 | A kind of vacuum leak hunting joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420694800.3U CN204328271U (en) | 2014-11-19 | 2014-11-19 | A kind of vacuum leak hunting joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204328271U true CN204328271U (en) | 2015-05-13 |
Family
ID=53164630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420694800.3U Expired - Fee Related CN204328271U (en) | 2014-11-19 | 2014-11-19 | A kind of vacuum leak hunting joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204328271U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108775990A (en) * | 2018-08-14 | 2018-11-09 | 中国航发南方工业有限公司 | Casing component oil circuit package seal checker and detection method |
-
2014
- 2014-11-19 CN CN201420694800.3U patent/CN204328271U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108775990A (en) * | 2018-08-14 | 2018-11-09 | 中国航发南方工业有限公司 | Casing component oil circuit package seal checker and detection method |
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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: 20150513 Termination date: 20151119 |
|
| EXPY | Termination of patent right or utility model |