CN202789927U - Pipe coupling - Google Patents
Pipe coupling Download PDFInfo
- Publication number
- CN202789927U CN202789927U CN 201220333564 CN201220333564U CN202789927U CN 202789927 U CN202789927 U CN 202789927U CN 201220333564 CN201220333564 CN 201220333564 CN 201220333564 U CN201220333564 U CN 201220333564U CN 202789927 U CN202789927 U CN 202789927U
- Authority
- CN
- China
- Prior art keywords
- steel
- pipe coupling
- inner walls
- steel ring
- steel pipes
- 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 pipe coupling which enables a front steel pipe and a rear pipe to be connected together when the steel pipes are wound with transform polythene anti-corrosion layers in a spiral production line. The problems that a flower-basket-type pipe coupling used currently is heavy in weight and the inner walls of the steel pipes are easy to scratch are mainly solved. The pipe coupling comprises a steel ring with an opening, and the inner walls of two sides of the steel ring are respectively welded with a nut. The two nuts are provided with double-thread screws with reverse threads and obverse threads. The pipe coupling has the advantages of being simple in structure, light in weight and safe and convenient to use, and due to the large contacting area of the steel ring and the inner walls of the steel pipes, the inner walls of the steel pipes can not be scratched.
Description
Technical field:
The utility model relates to a kind of when twining the modified poly ethylene anticorrosive coat to steel pipe on the spiral production line, the union coupling that the front and back steel pipe connecting is connected together.
Background technique:
On the spiral production line, twine the modified poly ethylene anticorrosive coat to steel pipe, carry out continuously in order to make production, need with union coupling the front and back steel pipe connecting to be connected together, what use at present all is flower basket formula union coupling, flower basket formula union coupling weight is large, be contained in and only have four fulcrums to contact with steel pipe inner wall in the steel pipe, because fulcrum is few, easily scratch steel pipe inner wall.
Summary of the invention:
Technical problem to be solved in the utility model provides a kind of lightweight, can not scratch the union coupling of steel pipe inner wall.
Above-mentioned purpose is achieved in that it comprises and steel ring with opening is welded with respectively nut on the inwall of steel ring opening both sides, is equipped with in two nuts with the double threaded screw of screw thread anyway.
Using method and advantage: when on the spiral production line, twining the modified poly ethylene anticorrosive coat to steel pipe, the utility model is contained in the joint of two steel pipes that need connection, rotating screw bolt, the steel ring opening amplifies, make the steel ring swelling on the inwall of two steel pipe joints that needs connect, the purpose that realization is connected together two steel pipe connectings in front and back is with carrying out continuously of guaranteeing to produce; The backward rotation screw rod dwindles the steel ring opening, and the utility model can take off.Advantage is: simple in structure, lightweight, safe and convenient to use, and again because the area of contact of steel ring and steel pipe inner wall is large, so can not scratch steel pipe inner wall.
Description of drawings:
Fig. 1 is main TV structure schematic representation of the present utility model;
Fig. 2 is side-looking structural representation of the present utility model.
Embodiment:
With reference to Fig. 1,2, it comprises the steel ring 1 with opening, is welded with respectively nut 2 on the inwall of steel ring opening both sides, is equipped with in two nuts with the double threaded screw 3 of screw thread anyway.
Claims (1)
1. union coupling is characterized in that: comprise the steel ring (1) with opening, be welded with respectively nut (2) on the inwall of steel ring opening both sides, be equipped with in two nuts with the double threaded screw of screw thread (3) anyway.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220333564 CN202789927U (en) | 2012-07-11 | 2012-07-11 | Pipe coupling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220333564 CN202789927U (en) | 2012-07-11 | 2012-07-11 | Pipe coupling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202789927U true CN202789927U (en) | 2013-03-13 |
Family
ID=47817193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220333564 Expired - Fee Related CN202789927U (en) | 2012-07-11 | 2012-07-11 | Pipe coupling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202789927U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104632800A (en) * | 2015-01-04 | 2015-05-20 | 刘青建 | Four-hole balance locking device |
| CN106089878A (en) * | 2016-03-29 | 2016-11-09 | 泉州市海恩德机电科技发展有限公司 | A kind of locking device and application thereof |
-
2012
- 2012-07-11 CN CN 201220333564 patent/CN202789927U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104632800A (en) * | 2015-01-04 | 2015-05-20 | 刘青建 | Four-hole balance locking device |
| CN104632800B (en) * | 2015-01-04 | 2016-08-17 | 刘青建 | A kind of four hole balance locking devices |
| CN106089878A (en) * | 2016-03-29 | 2016-11-09 | 泉州市海恩德机电科技发展有限公司 | A kind of locking device and application thereof |
| CN106089878B (en) * | 2016-03-29 | 2018-07-06 | 泉州市海恩德机电科技发展有限公司 | A kind of application of locking device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130313 Termination date: 20130711 |