CN2140461Y - Straight-through pipe joint for connecting retangular water pipe - Google Patents
Straight-through pipe joint for connecting retangular water pipe Download PDFInfo
- Publication number
- CN2140461Y CN2140461Y CN 92221656 CN92221656U CN2140461Y CN 2140461 Y CN2140461 Y CN 2140461Y CN 92221656 CN92221656 CN 92221656 CN 92221656 U CN92221656 U CN 92221656U CN 2140461 Y CN2140461 Y CN 2140461Y
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- CN
- China
- Prior art keywords
- rectangular
- tooth
- profile
- length
- free flow
- 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 straight-through pipe joint which is made of innocuous rubber material through vulcanization and is used for connecting rectangular plastic water pipes. The utility model comprises a joint main body and connecting bodies which are respectively positioned on both ends of the joint main body, wherein, each connecting body is provided with a rectangular inner hole of which the edge length conforms to or is slightly smaller than the corresponding edge length of a connected rectangular water pipe. The hole wall of the rectangular inner hole is at least provided with two circles of tooth-shaped sealing annular bands. The sectional area of the space of an inner cavity of the joint main body can be used for accommodating the sectional area of the rectangular water pipe. The utility model has the advantage of convenient operation, can relieve the reprocessing of both ends of the rectangular water pipe, and can compensate for the change of the length of the water pipe caused by temperature.
Description
The utility model is about piping attachment, particularly about pipe joint.
Home poultry raising in the particularly large-scale batch production home poultry raising, often adopts the pipe type drinking-water system to the poultry supply drinking-water of being raised.Because with cooperating and the needs of installation etc. of other feeding facility, these water pipes by the non-toxic plastic manufacturing are changing over the rectangular cross-section from circular cross-section in recent years one after another.Connection between this change supply pipe has brought huge difficulty.At present, the technological scheme that solves an above-mentioned difficult problem is that the two ends with rectangular water tubes are extended to traditional circular cross-section respectively, still uses original round plastic pipe joint.The technique scheme deficiency is: 1, the manufacturing of supply pipe is made troubles.2, tube wall is extended to the circular nonuniformity that not only makes the tube wall attenuation but also cause wall thickness by rectangle, when employing is threaded form, can cause tube wall to penetrate.If when adopting tapered sleeve to compress Connecting format, often, leak easily because outer wall loses circle.3, no matter the round plastic pipe joint is that form of being threaded or tapered sleeve compress Connecting format, inconvenience not only is installed, and because of being the hard connection of inductility, plastic water pipe is often broken because of contraction during winter.
The purpose of this utility model is to provide a kind of free flow coupling that is used for the rectangular plastic water pipe.This free flow coupling does not need that rectangular plastic water pipe two ends are extended to circle just can directly connect ， And and antileaking with two rectangular plastic water pipes easily.This free flow coupling also can compensate plastic water pipe because of stretching that temperature effect produces simultaneously.
The purpose of this utility model is achieved in that a kind of free flow coupling that is vulcanized the rectangular water tubes of making by rubber material, it is characterized in that being provided with the joint body that its intracavity space sectional area can hold the rectangular water tubes sectional area, with lay respectively at above-mentioned joint body two ends have that the length of side conforms to the rectangular water tubes length of side or the union body of smaller rectangular opening, be provided with two circle profile of tooth seal bands on the hole wall of described rectangular opening at least.
Below in conjunction with accompanying drawing the utility model is further described.
Fig. 1 is a kind of structural representation of the present utility model.
Fig. 2 is the side view cutaway drawing of Fig. 1.
Fig. 3 is the triangular tooth of seal band.
Fig. 4 is the sawtooth profile of tooth of seal band.
Fig. 5 is the hangnail profile of tooth of seal band.
Fig. 6 is the another kind of structure side view cutaway drawing of the utility model.
Embodiment 1.Free flow coupling comprises joint body 2 and lays respectively at the union body 1 and the 3(Fig. 1 at joint body 2 two ends), its profile is cylindric.Union body 1 and 3 is respectively arranged with rectangular opening 5(Fig. 1 and 2).The length of side a of rectangular opening 5 conforms to the corresponding length of side of the rectangular water tubes that is connect with b or is smaller.The hole wall of rectangular opening 5 is provided with profile of tooth seal band 4.The quantity of profile of tooth seal band 4 is at least two circles, and its profile of tooth can be triangular tooth shown in Figure 3, and perhaps sawtooth profile of tooth as shown in Figure 4 perhaps is a hangnail profile of tooth (Fig. 5).Union body 1 is the wave duct shape, and its minimum diameter is more than or equal to cornerwise length of rectangular opening 5.Union body also can be hollow cylindrical (not having figure), and its internal diameter is more than or equal to cornerwise length of rectangular opening 5.Whole free flow coupling is made through sulfuration by nontoxic natural rubber or various asynthetic rubber's material.
Embodiment 2.Is quarter bend shape (referring to Fig. 6) by nontoxic natural rubber or various asynthetic rubber through the profile of the free flow coupling of over cure manufacturing, and it comprises joint body 7 and lays respectively at the union body at joint body 7 two ends.The union body at described two ends is respectively arranged with rectangular opening 5.The length of side a of rectangular opening 5 conforms to the corresponding length of side of the rectangular water tubes that is connect with b or is smaller.The hole wall of rectangular opening 5 is provided with at least two circle profile of tooth seal bands 4.The profile of tooth of profile of tooth seal band 4 can be triangular tooth (Fig. 3) or sawtooth profile of tooth (Fig. 4) or hangnail profile of tooth (Fig. 5).Two length of sides of the rectangle endoporus of joint body 7 are respectively greater than the corresponding length of side of rectangular opening 5, i.e. a '＞a and b '＞b.
The utility model if an end of rectangular water tubes that will be connect respectively from the rectangular opening 5 of union body Cha Ru And extend the joint body position, just two rectangular water tubes can be tied effectively, therefore both exempted the reprocessing at rectangular water tubes two ends, made this connection work easy again.Because the structure of free flow coupling permission rectangular water tubes moves axially, rectangular water tubes stretches into the enough length of free flow coupling again, so when low temperature causes that the plastics rectangular water tubes is shunk, allow the rectangular water tubes freedom to move outward and do not influence the performance of connection, thereby realized temperature compensation function, can prevent the fracture of water stopping tube effectively.
Claims (5)
1, a kind of free flow coupling of the rectangular water tubes of making through sulfuration by rubber material, it is characterized in that including the joint body that its intracavity space sectional area can hold the rectangular water tubes sectional area, the union body with its length of side and rectangular water tubes corresponding edge appearance symbol or smaller rectangular opening with laying respectively at above-mentioned joint body two ends is provided with two circle profile of tooth seal bands at least on the hole wall of described rectangular opening.
2, free flow coupling according to claim 1, the profile of tooth that it is characterized in that described profile of tooth seal band are triangular tooth, sawtooth profile of tooth or hangnail profile of tooth.
3, free flow coupling according to claim 1 and 2 is characterized in that described joint body is the wave duct shape, and its minimum diameter is more than or equal to cornerwise length of described rectangular opening.
4, free flow coupling according to claim 1 and 2 is characterized in that described joint body is hollow cylindrical, and its internal diameter is more than or equal to cornerwise length of described rectangular opening.
5, free flow coupling according to claim 1 and 2 is characterized in that described joint body is the quarter bend shape, and two length of side is respectively greater than the corresponding length of side of described rectangular opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92221656 CN2140461Y (en) | 1992-11-18 | 1992-11-18 | Straight-through pipe joint for connecting retangular water pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92221656 CN2140461Y (en) | 1992-11-18 | 1992-11-18 | Straight-through pipe joint for connecting retangular water pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2140461Y true CN2140461Y (en) | 1993-08-18 |
Family
ID=33768405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92221656 Expired - Fee Related CN2140461Y (en) | 1992-11-18 | 1992-11-18 | Straight-through pipe joint for connecting retangular water pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2140461Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110469740A (en) * | 2019-08-30 | 2019-11-19 | 佛山联博工程科技有限公司 | It is star-like from lock interface |
-
1992
- 1992-11-18 CN CN 92221656 patent/CN2140461Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110469740A (en) * | 2019-08-30 | 2019-11-19 | 佛山联博工程科技有限公司 | It is star-like from lock interface |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |