WO2013010191A1 - Pipe connector fittings and method - Google Patents
Pipe connector fittings and method Download PDFInfo
- Publication number
- WO2013010191A1 WO2013010191A1 PCT/ZA2012/000044 ZA2012000044W WO2013010191A1 WO 2013010191 A1 WO2013010191 A1 WO 2013010191A1 ZA 2012000044 W ZA2012000044 W ZA 2012000044W WO 2013010191 A1 WO2013010191 A1 WO 2013010191A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- pipe
- nut
- fitting
- tooth
- spigot
- 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.)
- Ceased
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L33/00—Arrangements for connecting hoses to rigid members; Rigid hose-connectors, i.e. single members engaging both hoses
- F16L33/22—Arrangements for connecting hoses to rigid members; Rigid hose-connectors, i.e. single members engaging both hoses with means not mentioned in the preceding groups for gripping the hose between inner and outer parts
- F16L33/223—Arrangements for connecting hoses to rigid members; Rigid hose-connectors, i.e. single members engaging both hoses with means not mentioned in the preceding groups for gripping the hose between inner and outer parts the sealing surfaces being pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L47/00—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
- F16L47/04—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics with a swivel nut or collar engaging the pipe
- F16L47/041—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics with a swivel nut or collar engaging the pipe the plastic pipe end being flared either before or during the making of the connection
Definitions
- a pipe connector fitting comprises a pipe fitting body and a nut, the body having a spigot with an external circumferential tooth, and the nut having an internal circumferential tooth, the arrangement being such that the pipe may be threaded through the nut and pushed onto the spigot and the nut screwed onto the body so that the internal tooth of the nut and spigot bite into the pipe from the outside and inside of the pipe and the pipe is locked onto the fitting body.
- the nut may have a raised area after the thread that has a diameter that is just smaller than the thread.
- Figure 7 is a perspective view of the assembled fitting
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
A pipe connector fitting comprising a pipe fitting body 1 and a nut 2a or 2b, the body having a spigot with an external circumferential tooth, and the nut having an internal circumferential tooth, the arrangement being such that the pipe 3 may be threaded through the nut and pushed onto the spigot and the nut screwed onto the body so that the internal tooth of the nut and spigot bite into the pipe from the outside and inside of the pipe and the pipe is locked onto the fitting body.
Description
PIPE CONNECTOR FITTINGS AND METHOD.
FIELD OF THE INVENTION This invention relates to a method for connecting pipes, valves and any other fittings to each other. In particular this invention is aimed at the agricultural and the plumbing sector.
BACKGROUND TO THE INVENTION
There are many methods for connecting pipes. When a connection is made one must ensure that a proper seal is made and that the pipe will not pull out. The present invention seeks to fulfill these criteria.
SUMMARY OF THE INVENTION
A pipe connector fitting according to the invention comprises a pipe fitting body and a nut, the body having a spigot with an external circumferential tooth, and the nut having an internal circumferential tooth, the arrangement being such that the pipe may be threaded through the nut and pushed onto the spigot and the nut screwed onto the body so that the internal tooth of the nut and spigot bite into the pipe from the outside and inside of the pipe and the pipe is locked onto the fitting body. Further the nut may have a raised area after the thread that has a diameter that is just smaller than the thread.
Further the nut may have an extra tooth on the end of the nut. Further the teeth may be chamfered.
r
The invention also covers a method for connecting pipes in which a pipe is threaded through a nut having an internal circumferential tooth and pushed onto a pipe fitting body having a spigot with an external circumferential tooth and the nut is screwed
onto the body such that the tooth of the nut and spigot bite into the pipe from the outside and inside of the pipe and the pipe is locked onto the fitting body.
BRIEF DESCRIPTION OF THE DRAWINGS
The invention is now described, by way of non-limiting example, with reference to the accompanying drawings wherein:
Figure 1 shows the components that make up the fitting;
Figure 2 shows a detail of the fitting body end;
Figure 3 shows a sectional detail of the end of nut type 1 ;
Figure 4 shows a sectional detail of the end of nut type 2;
Figure 5 shows the fitting assembled to an Agricultural/ plumbing pipe;
Figure 6 is a cross section of the assembled fitting shown in Figure 5;
Figure 7 is a perspective view of the assembled fitting;
Figure 8 is a detailed sectioned view of the pipe in the fitting with nut type 1 ; and
Figure 9 is a detailed sectioned view of the pipe in the fitting with nut type 2.
DETAILED DESCRIPTION OF THE INVENTION
The fitting consists of the following components as shown in Figure 1 :
A fitting body 1 , a nut 2a , or nut 2b and a pipe 3.The way to assemble the fitting is illustrated in figure 5 and 6. The nut 2a or 2b is pushed over the pipe 3. Ensure that the nut 2 (a or b) is facing the correct way with the hexagonal part away from the fitting body 1.
Next push the pipe 3 over the fitting body 1 until flush with the threaded part.
To complete the assembly screw the nut 2 (a or b) onto the fitting body 1 until flush to the end. A spanner may be used but is not necessary.
The method of sealing is now described with reference to Figures 2,3,4,8 and 9. As seen in Figure 2 the end of fitting body 1 has teeth 4 and 5 that can bite into the
inside of pipe 3. This is to prevent the pipe 3 from pulling out after the nut 2 (a or b) has been tightened.
There are two types of nuts that can be used, either nut 2a or nut 2b.
The nut 2a has a special chamfered tooth 6 after the threaded part as shown in Figure 3. This tooth 6 provides an extra tooth to bite into the pipe 3 but this time from the outside of the pipe 3. There is a raised area 7 after the thread that has a diameter that is just smaller than the thread. Due to the nature of Agricultural / plumbing pipe the pipe 3 will form over the fitting body 1 as shown in Figure 8. The teeth 4 and 5 on the fitting body 1 and the tooth 6 on the nut 2 bite into the pipe 3 and prevent it from pulling out. The area 7 forces the pipe 3 inwards and when the nut 2a is screwed on it forces the thread of the nut 2a to push the pipe into the outside teeth 4 and 5.
The nut 2b has extra teeth 8 on the end of the nut. These teeth will bite into the pipe 3 when the nut 2b is screwed onto the pipe 3. The teeth 8 will also force the pipe 3 on to the body 1 and this ensures that the teeth 4 and 5 on the body 1 bite into the pipe 3. This means that teeth bite into the pipe 3 from both the inside and outside. To re-use the fitting assembly unscrew the nut 2 (a or b) and pull the pipe 3 off the fitting body 1.
Claims
1. A pipe connector fitting comprising a pipe fitting body and a nut, the body having a spigot with an external circumferential tooth, and the nut having an internal circumferential tooth, the arrangement being such that the pipe may be threaded through the nut and pushed onto the spigot and the nut screwed onto the body so that the internal tooth of the nut and spigot bite into the pipe from the outside and inside of the pipe and the pipe is locked onto the fitting body.
2. A pipe connector fitting as claimed in claim 1 in which the nut has a raised area after the thread that has a diameter that is just smaller than the thread.
3. A pipe connector fitting as claimed in claim 2 in which the nut has an extra tooth on the end of the nut.
4. A pipe connector fitting as claimed in claims 2 or 3 in which the teeth are chamfered.
5. A method for connecting pipes in which a pipe is threaded through a nut having an internal circumferential tooth and pushed onto a connecting body having a spigot with and external circumferential tooth and the nut is screwed onto the body such that the tooth of the nut and spigot bite into the pipe from the outside and inside of the pipe and the pipe is locked onto the fitting body.
6. A pipe connector fitting body substantially as described herein with reference to the accompanying drawings.
7. A pipe connector fitting nut substantially as described herein with reference to the accompanying drawings.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ZA2011/5115 | 2011-07-12 | ||
| ZA201105115 | 2011-07-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2013010191A1 true WO2013010191A1 (en) | 2013-01-17 |
Family
ID=46599030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/ZA2012/000044 Ceased WO2013010191A1 (en) | 2011-07-12 | 2012-06-18 | Pipe connector fittings and method |
Country Status (1)
| Country | Link |
|---|---|
| WO (1) | WO2013010191A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014145396A (en) * | 2013-01-28 | 2014-08-14 | Nippon Pillar Packing Co Ltd | Pipe joint nut |
| CN110500460A (en) * | 2019-09-03 | 2019-11-26 | 徐州华显凯星信息科技有限公司 | A kind of tensile type hose sealing connector |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040245776A1 (en) * | 2000-12-07 | 2004-12-09 | Ql Holdings, Llc | Hose coupling device |
| US7648178B1 (en) * | 2008-10-22 | 2010-01-19 | Andros Matthew J | Connector for joining with agricultural drip tape |
-
2012
- 2012-06-18 WO PCT/ZA2012/000044 patent/WO2013010191A1/en not_active Ceased
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040245776A1 (en) * | 2000-12-07 | 2004-12-09 | Ql Holdings, Llc | Hose coupling device |
| US7648178B1 (en) * | 2008-10-22 | 2010-01-19 | Andros Matthew J | Connector for joining with agricultural drip tape |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014145396A (en) * | 2013-01-28 | 2014-08-14 | Nippon Pillar Packing Co Ltd | Pipe joint nut |
| CN110500460A (en) * | 2019-09-03 | 2019-11-26 | 徐州华显凯星信息科技有限公司 | A kind of tensile type hose sealing connector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
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| NENP | Non-entry into the national phase |
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| 122 | Ep: pct application non-entry in european phase |
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