CN204153350U - A kind of trapezoidal sealing configuration high-pressure air pipe joint - Google Patents
A kind of trapezoidal sealing configuration high-pressure air pipe joint Download PDFInfo
- Publication number
- CN204153350U CN204153350U CN201420547882.9U CN201420547882U CN204153350U CN 204153350 U CN204153350 U CN 204153350U CN 201420547882 U CN201420547882 U CN 201420547882U CN 204153350 U CN204153350 U CN 204153350U
- Authority
- CN
- China
- Prior art keywords
- joint
- cap nut
- grafting head
- shoulder grafting
- internal diameter
- 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
Links
Abstract
The utility model relates to pipe joint technical field, be specifically related to a kind of trapezoidal sealing configuration high-pressure air pipe joint, comprise the screw-in joint peace shoulder grafting head connected by cap nut, between described screw-in joint peace shoulder grafting head, trapezoidal gasket seal is set, the internal diameter of this trapezoidal gasket seal is identical with the internal diameter screwing in joint peace shoulder grafting head, arranges and lubricate plain cushion between described flat shoulder grafting head and cap nut.The beneficial effects of the utility model are: structure is simple, is skillfully constructed; On gasket seal, the internal diameter of sealing surface is identical with the internal diameter screwing in joint and flat shoulder grafting head, need only overcome the thread friction moment between cap nut and screw-in joint and the friction torque between cap nut and lubrication plain cushion when cap nut is tightened.
Description
Technical field
The utility model relates to pipe joint technical field, is specifically related to a kind of trapezoidal sealing configuration high-pressure air pipe joint.
Background technique
High-pressure air joint is the vitals in high pressure airline, and it plays the effects such as connection device, system pipeline and change medium direction.After pipe-line system working pressure raises, the screw-down torque that pipe joint needs increases, thus can cause the problem of mutually killing between joint part and small space middle joint cannot be dismantled and install, and existing pipe joint cannot solve the problem.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned deficiency, provides a kind of trapezoidal sealing configuration high-pressure air pipe joint, realizes low screw-down torque, bite-resistant.
For realizing above-mentioned technical purpose, the scheme that the utility model provides is: a kind of trapezoidal sealing configuration high-pressure air pipe joint, comprise the screw-in joint peace shoulder grafting head connected by cap nut, between described screw-in joint peace shoulder grafting head, trapezoidal gasket seal is set, the internal diameter of this trapezoidal gasket seal is identical with the internal diameter screwing in joint peace shoulder grafting head, arranges lubrication plain cushion between described flat shoulder grafting head and cap nut.
And the material of described lubrication plain cushion is aluminum bronze.
And described cap nut adopts high strength anti-bite alloy.
The beneficial effects of the utility model are: structure is simple, is skillfully constructed; On gasket seal, the internal diameter of sealing surface is identical with the internal diameter screwing in joint and flat shoulder grafting head, need only overcome the thread friction moment between cap nut and screw-in joint and the friction torque between cap nut and lubrication plain cushion when cap nut is tightened.
Accompanying drawing explanation
Fig. 1 is structure principle chart of the present utility model.
Wherein: 1, screw in joint, 2, cap nut, 3, trapezoidal gasket seal, 4, lubrication plain cushion, 5, flat shoulder grafting head.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.
The present embodiment provides a kind of trapezoidal sealing configuration high-pressure air pipe joint, as shown in Figure 1, comprise the peaceful shoulder grafting head 5 of the screw-in joint 1 connected by cap nut 2, between described screw-in joint 1 peaceful shoulder grafting head 5, trapezoidal gasket seal 3 is set, the internal diameter of this trapezoidal gasket seal 3 is identical with the internal diameter screwing in joint 1 peaceful shoulder grafting head 5, arranges and lubricate plain cushion 4 between described flat shoulder grafting head 5 and cap nut 2.Relative to other types pad, trapezoidal gasket seal high-pressure air joint has the advantages that screw-down torque is little and gas circulating resistance is little.
Further, the material of above-mentioned lubrication plain cushion 4 is aluminum bronze.
Further, above-mentioned cap nut 2 adopts high strength anti-bite alloy, can not and other part between kill.
When the utility model uses, on gasket seal, the internal diameter of sealing surface is identical with the internal diameter screwing in joint 1 and flat shoulder grafting head 5, by tightening cap nut 2, screwing in joint 1 and producing relative axial pressing force with between flat shoulder grafting head 5, compress trapezoidal gasket seal 3, produce sealing effect; Install additional between cap nut 2 and flat shoulder grafting head 5 and lubricate plain cushion 4, lubrication plain cushion 4 material is aluminum bronze, can reduce the screw-down torque of cap nut 2; Cap nut 2 adopts high strength anti-bite alloy, and can not lubricate plain cushion 4 and kills with screw-in joint 1, be convenient to joint disassembly and keep in repair in cap nut 2 tight condition.
The above is only preferred implementation of the present utility model; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the utility model principle; can also make some improvement or distortion, these improve or distortion also should be considered as protection domain of the present utility model.
Claims (2)
1. a trapezoidal sealing configuration high-pressure air pipe joint, comprise the screw-in joint peace shoulder grafting head connected by cap nut, it is characterized in that: between described screw-in joint peace shoulder grafting head, trapezoidal gasket seal is set, the internal diameter of this trapezoidal gasket seal is identical with the internal diameter screwing in joint peace shoulder grafting head, arranges lubrication plain cushion between described flat shoulder grafting head and cap nut.
2. one according to claim 1 trapezoidal sealing configuration high-pressure air pipe joint, is characterized in that: the material of described lubrication plain cushion is aluminum bronze.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420547882.9U CN204153350U (en) | 2014-09-23 | 2014-09-23 | A kind of trapezoidal sealing configuration high-pressure air pipe joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420547882.9U CN204153350U (en) | 2014-09-23 | 2014-09-23 | A kind of trapezoidal sealing configuration high-pressure air pipe joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204153350U true CN204153350U (en) | 2015-02-11 |
Family
ID=52511465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420547882.9U Expired - Fee Related CN204153350U (en) | 2014-09-23 | 2014-09-23 | A kind of trapezoidal sealing configuration high-pressure air pipe joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204153350U (en) |
-
2014
- 2014-09-23 CN CN201420547882.9U patent/CN204153350U/en not_active Expired - Fee Related
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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: 20150211 Termination date: 20150923 |
|
| EXPY | Termination of patent right or utility model |