CN203052054U - Nonmetal pipe fast connecting device - Google Patents
Nonmetal pipe fast connecting device Download PDFInfo
- Publication number
- CN203052054U CN203052054U CN 201320056936 CN201320056936U CN203052054U CN 203052054 U CN203052054 U CN 203052054U CN 201320056936 CN201320056936 CN 201320056936 CN 201320056936 U CN201320056936 U CN 201320056936U CN 203052054 U CN203052054 U CN 203052054U
- Authority
- CN
- China
- Prior art keywords
- sealing
- seal
- tubing
- ring
- snap ring
- 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 - Lifetime
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- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
The utility model discloses a nonmetal pipe fast connecting device. The nonmetal pipe fast connecting device comprises snap rings (3) which are assembled on the end portions of pipes (7) which are relatively arranged at intervals, wherein cylindrical sealing bosses (6) are arranged on the end portion of each pipe, sealing grooves (4) are formed in the middles of the snap rings, compressing ring steps (2) are arranged on the two sides of the sealing grooves on the snap rings, sealing rings (5) which are matched with the sealing grooves and the sealing bosses are arranged inside the sealing grooves, limiting baffle rings (1) which are matched with the lateral sides of the sealing bosses and can limit axial movement of the pipe are arranged at the two ends of the snap rings, cross sections of the sealing grooves are trapezoid-shaped, the snap rings are fastened through lock bolts (8), and the snap rings and the sealing rings form into one and are clamped on the sealing bosses. The nonmetal pipe fast connecting device has the advantages of being simple in structure, convenient to connect, reliable in sealing, and capable of greatly reducing connecting cost and labor intensity of workers, and improving installation efficiency of the pipeline.
Description
Technical field
The utility model relates to tubing, especially relates to the connection set of steel-plastic composite pipe.
Background technique
As everyone knows, nonmetal tubing, especially for chemical industry, municipal administration, oil, the steel-plastic composite pipe that industries such as combustion gas are used, present stage mainly is to adopt electric smelting to be connected two kinds of forms with flange in connecting construction, because the special circumstances of pipework job site and the needs of design conditions, often having in construction and installation, needs employing flange connection connects tubing, and the sealing surface of flange connection is the end at tubing, therefore for guaranteeing that connecting tubing does not leak, just require that connecting bolt has uniform pretightening force on the smooth and flange plate of the sealing surface of tubing end, even these all meet the demands, flange pipe end sealing surface owing to steel-plastic composite pipe in using is the plastic layer that is formed by injection moulding, thereby when working temperature changes, cause flange facing the gap to occur because the linear expansion coeffcient of plastics and two kinds of materials of metal differs, cause pipeline leakage accident to occur at flange connections.
The model utility content
At nonmetal tubing, the particularly existing problem of steel-plastic composite pipe flange connecting apparatus in the above-mentioned prior art, it is a kind of not only simple in structure that the utility model provides, easy to connect and reliable sealing composite steel-plastic pipe fitting Quick Connect Kit.
The technological scheme that the technical problems to be solved in the utility model is taked is: described a kind of nonmetal tubing Quick Connect Kit comprises the snap ring that is assemblied on the two tubing ends, described tubing end is provided with columniform seal boss, be provided with seal groove in the middle of the described snap ring, seal groove both sides on the described snap ring are provided with the pressure ring step, be provided with the seal ring that matches with seal groove and seal boss in the described seal groove, the limit baffle ring that two ends are provided with that restriction tubing moves axially and match with the seal boss side in the described snap ring, described seal groove cross section is trapezoidal, described snap ring is fastening by lock bolt, and sealing contacts the formation one and is stuck on the seal boss with seal ring to make snap ring.
The utility model makes this connection set have good sealing property because its rubber seal and snap ring adopt distinctive self sealing structure design, and increases the corresponding enhancing of its sealing with the tubing fluid pressure.Because this device leaves certain axial clearance after installing, guaranteed that tubing can freely stretch when operating mode and temperature variation, thus inconsistent because of the linear expansion coeffcient of plastics and two kinds of materials of metal when adopting axial seal face to solve that flange connects because of sealing surface, cause pipeline the problem of leaking to occur at flange connections.
The utility model is owing to produce a seal boss in nonmetal tubing end, and use the seal ring of the C shape elastic structure that has selfsealings match with it, be installed in two snap rings, reach the purpose of the tubing that is tightly connected by two snap ring bolton, the utility model is simple in structure, easy to connect, sealing is reliable, compare the work that can significantly reduce link cost and workman with the flange connection of existing Steel Skeleton composite pipe strong, improved the installation efficiency of pipeline
Description of drawings
Fig. 1 is the utility model sectional structure schematic representation,
In Fig. 1,1, limit baffle ring 2, pressure ring step 3, snap ring 4, seal groove 5, seal ring
6, seal boss 7, tubing 8, lock bolt.
Embodiment
In Fig. 1, described a kind of nonmetal tubing Quick Connect Kit comprises two snap rings 3 on two tubing, 7 ends that are fitted in the relative spacing setting, two snap rings form an annulus, described tubing end is provided with columniform seal boss 6, be provided with seal groove 4 in the middle of the described snap ring, seal groove both sides on the described snap ring are provided with pressure ring step 2, be provided with the seal ring 5 that matches with seal groove and seal boss in the described seal groove, described snap ring two ends are provided with the limit baffle ring 1 that can limit that tubing moves axially and match with the seal boss side, described seal groove cross section is trapezoidal, described snap ring is fastening by lock bolt 8, makes snap ring contact formation one and being stuck on the seal boss with seal ring.Described snap ring 3 is made for bearing shell shape and with metallic material, described snap ring can be formed a circle by four, the snap ring two ends have bolt hole, described seal ring inner circumference becomes C shape opening, snap ring is fastening by lock bolt, sealing contact and forms one and be stuck on the end sealing boss pressure ring step that makes snap ring with seal ring, thereby realization tubing is tightly connected.When connecting tubing, earlier seal ring is enclosed within and snap ring is enclosed within on tubing seal boss and the seal ring again on the seal boss of tubing, use the lock bolt Joining clasp, fastening lock bolt links together snap ring, by pressure ring step location seal ring, utilize seal ring elasticity and the sealing of selfsealings realization tubing end, and by the limit baffle ring on the snap ring, the axial motion of restriction tubing, thus realize that tubing is tightly connected.
Claims (1)
1. nonmetal tubing Quick Connect Kit, it is characterized in that: it comprises the snap ring (3) that is contained on tubing (7) two end part, described tubing end is provided with columniform seal boss (6), be provided with seal groove (4) in the middle of the described snap ring, seal groove both sides on the described snap ring are provided with pressure ring step (2), be provided with the seal ring (5) that matches with seal groove and seal boss in the described seal groove, described snap ring two ends are provided with the limit baffle ring (1) that can limit that tubing moves axially and match with the seal boss side, described seal groove cross section is trapezoidal, described snap ring is fastening by lock bolt (8), and sealing contacts the formation one and is stuck on the seal boss with seal ring to make snap ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320056936 CN203052054U (en) | 2013-02-01 | 2013-02-01 | Nonmetal pipe fast connecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320056936 CN203052054U (en) | 2013-02-01 | 2013-02-01 | Nonmetal pipe fast connecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203052054U true CN203052054U (en) | 2013-07-10 |
Family
ID=48735007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320056936 Expired - Lifetime CN203052054U (en) | 2013-02-01 | 2013-02-01 | Nonmetal pipe fast connecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203052054U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109442126A (en) * | 2018-11-16 | 2019-03-08 | 中国石油天然气集团有限公司 | A kind of non-metal composite pipe jointing and manufacturing method |
-
2013
- 2013-02-01 CN CN 201320056936 patent/CN203052054U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109442126A (en) * | 2018-11-16 | 2019-03-08 | 中国石油天然气集团有限公司 | A kind of non-metal composite pipe jointing and manufacturing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 337003 No. 1 Jade Lake Road, Pingxiang economic and Technological Development Zone, Jiangxi, Pingxiang Patentee after: ANYUAN PIPELINE INDUSTRIAL CO.,LTD. Address before: 337000, 1, Yu Hu Road, Pingxiang hi tech Industrial Park, Jiangxi, China Patentee before: ANYUAN PIPELINES INDUSTRIAL Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130710 |