CN2099887U - Straight-sealed lightweight union - Google Patents
Straight-sealed lightweight union Download PDFInfo
- Publication number
- CN2099887U CN2099887U CN 90215122 CN90215122U CN2099887U CN 2099887 U CN2099887 U CN 2099887U CN 90215122 CN90215122 CN 90215122 CN 90215122 U CN90215122 U CN 90215122U CN 2099887 U CN2099887 U CN 2099887U
- Authority
- CN
- China
- Prior art keywords
- sealing
- union
- pipe
- cap
- centering
- 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.)
- Withdrawn
Links
- 210000004907 gland Anatomy 0.000 claims description 15
- 238000007789 sealing Methods 0.000 abstract description 16
- 239000007789 gas Substances 0.000 abstract description 4
- 239000012530 fluid Substances 0.000 abstract description 2
- 239000002341 toxic gas Substances 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract 1
- 230000000295 complement effect Effects 0.000 description 2
- 229910052755 nonmetal Inorganic materials 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000013507 mapping Methods 0.000 description 1
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- Gasket Seals (AREA)
Abstract
本实用新型公开了一种用于管子的连接与密封 的活接头，它由两对半圆形卡环，定心密封套、连接帽 和压帽组成。它彻底抛弃活接头与管体采用管螺纹 连接，活接头与管体的组合存在三个密封口且必须三 个密封口同时有效才能完成一个接头上的连接与密 封，而提供一种组合卡环式定位连接方式来实现只有 唯一密封口的管端直接对口密封，本活接头特别适合 于有高度密封可靠性要求的管道连接，如可燃气体、 有毒气体、高压流体管道。
The utility model discloses a joint used for connecting and sealing pipes, which is composed of two pairs of semicircular snap rings, a centering sealing sleeve, a connecting cap and a pressing cap. It completely abandons the connection between the union and the pipe body using pipe threads. There are three sealing ports in the combination of the union and the pipe body, and the three sealing ports must be effective at the same time to complete the connection and sealing on a joint, and provide a combined snap ring The joint positioning connection method realizes the direct sealing of the pipe end with only one sealing port. This union is especially suitable for pipeline connection with high sealing reliability requirements, such as combustible gas, toxic gas, and high-pressure fluid pipelines.
Description
The utility model relates to a kind of connection of pipe and the union of sealing, and the pipeline that is particularly suitable for the high-seal reliability requirement connects, as inflammable gas, toxic gas, high-pressure fluid pipes.It comprises following structure characteristic: two double garden shape snap ring ［ 2,6 ］, centering stuffing box gland ［ 4 ］, attachment cap ［ 5 ］, pressure cap ［ 7 ］ are formed.
The common trait of known union is that union adopts pipe thread to be connected with body, there are three sealed mouths in union with the combination of body and must effectively just can finish being connected and sealing on the contact simultaneously by three sealed mouths, the probability height of sealing random failure, from sealing the essence of base reason, there is gap at the bottom of tooth top and the tooth in pipe thread engagement, should not do gas seal, the form of pipe end smallest cross-sectional is the narrow groove in the point end, stress is concentrated, when pipeline is bent, not bending deflection on Nie He the tooth root, damage easily is corroded, shown in the first heavy machinery ZH--67 of Ministry of Machine-Building Industry, along with the exploitation and the science and technology development of high-pressure gas well, the unreliability of pipe thread seal is familiar with by people, the purpose of this utility model is to avoid above-mentioned deficiency of the prior art, based on further investigation, cast off the Placement of union and body screw thread once and for all, and provide a kind of modular card loop mapping Placement to realize having only the direct counterpart sealing of pipe end of unique sealed mouth body intensity.
The utility model is achieved in that union is made up of half garden shape snap ring, ring cap, centering stuffing box gland, attachment cap and pressure cap.The two ends that are connected pipe are respectively processed a circular groove and the cone seal end face that is complementary, half garden shape snap ring of convex in one pair of the holding on the circular groove of a pipe end, make the ring cap that is enclosed within advance on the body, attachment cap by the ring cap realize between ring cap, snap ring, the body three mutual location be connected; Holding one and half garden shape snap rings on the circular groove of another pipe end, the centering stuffing box gland that is embedded with nonmetal elastic ring is sleeved on body and the snap ring, by the screw thread that is enclosed within pressure cap on the body and centering stuffing box gland in advance spin the mutual location of realizing centering stuffing box gland, body, snap ring three be connected, at last two tube openings are docked in the centering stuffing box gland, the tightening attachment cap is promptly finished being connected of pipe and sealing with the screw thread of centering stuffing box gland.
The purpose of this utility model can also reach by following measure: two flange plate are enclosed within on connected two pipes in advance, two double garden shape snap rings are stuck on the pipe end circular groove, after respectively adorning a setting sleeve dock two tube openings at two ends, then two flange plate is compressed connection and the sealing that promptly realizes pipe.
Fig. 1 is the erection drawing of light union of the utility model direct-closing type and body.
Provide embodiment of the present utility model below in conjunction with accompanying drawing:
Connected two pipe ends are respectively processed a circular groove and the cone seal end face that is complementary; Holding is a pair of on the circular groove of a pipe end have in half garden shape snap ring ［ 2 ］ of convex, make the ring cap ［ 1 ］ that is enclosed within advance on the body by being enclosed within the mutual location of promptly realizing ring cap ［ 1 ］, snap ring ［ 2 ］ and body three on the snap ring ［ 2 ］ and being connected; Holding one and half garden shape snap rings ［ 6 ］ on the circular groove of another pipe end, the centering stuffing box gland ［ 4 ］ that will be embedded with nonmetal elastic ring ［ 3 ］ is sleeved on body and the snap ring ［ 6 ］, spin with centering stuffing box gland ［ 4 ］ screw thread by the pressure cap ［ 7 ］ that is enclosed within advance on the body, the mutual location of realizing centering stuffing box gland ［ 4 ］, snap ring ［ 6 ］, body three be connected, with the butt joint in centering stuffing box gland ［ 4 ］ of two tube openings, tightening attachment cap ［ 5 ］ is promptly finished being connected of pipe and sealing with the screw thread of centering stuffing box gland ［ 4 ］ at last.
Claims (3)
1, a kind of pipe that is used for connects and the union that seals, and is made up of snap ring [2,6], centering stuffing box gland [4], attachment cap [5], pressure cap [7], it is characterized in that snap ring [2,6] is two double gardens rings, and wherein [2] are convex half garden ring in a pair; Feel relieved between stuffing box gland [4] and attachment cap [5], the pressure cap [7] to being threaded.
2, union according to claim 1 is characterized in that described snap ring ［ 2,6 ］ is stuck in the circular groove that is connected the pipe pipe end.
3, union according to claim 1 is characterized in that described centering stuffing box gland ［ 4 ］ is the setting sleeve location, and flange connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90215122 CN2099887U (en) | 1990-11-21 | 1990-11-21 | Straight-sealed lightweight union |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90215122 CN2099887U (en) | 1990-11-21 | 1990-11-21 | Straight-sealed lightweight union |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2099887U true CN2099887U (en) | 1992-03-25 |
Family
ID=4894444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90215122 Withdrawn CN2099887U (en) | 1990-11-21 | 1990-11-21 | Straight-sealed lightweight union |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2099887U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100342091C (en) * | 2002-07-20 | 2007-10-10 | A－J古马有限公司 | Fluid connection assembly |
| CN101832434A (en) * | 2010-05-20 | 2010-09-15 | 龚岳强 | Connecting device of compressed air tube and application thereof |
-
1990
- 1990-11-21 CN CN 90215122 patent/CN2099887U/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100342091C (en) * | 2002-07-20 | 2007-10-10 | A－J古马有限公司 | Fluid connection assembly |
| CN101832434A (en) * | 2010-05-20 | 2010-09-15 | 龚岳强 | Connecting device of compressed air tube and application thereof |
| CN101832434B (en) * | 2010-05-20 | 2011-10-19 | 龚岳强 | Connecting device of compressed air tube and application thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |