CN201377653Y - Non-necking plastic bent pipe fitting piece - Google Patents
Non-necking plastic bent pipe fitting piece Download PDFInfo
- Publication number
- CN201377653Y CN201377653Y CN200920107331U CN200920107331U CN201377653Y CN 201377653 Y CN201377653 Y CN 201377653Y CN 200920107331 U CN200920107331 U CN 200920107331U CN 200920107331 U CN200920107331 U CN 200920107331U CN 201377653 Y CN201377653 Y CN 201377653Y
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- CN
- China
- Prior art keywords
- gap bridge
- tube
- pipe fitting
- bent pipe
- bridge bent
- 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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- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The utility model provides a non-necking plastic bent pipe fitting piece, which consists of a bent pipe fitting, wherein, two ends of the bent pipe fitting are respectively connected with a bend, and the bent pipe fitting is in a smooth arc shape. The ports of the bends are straight pipe interfaces, and the sizes of the inner diameters of all cross sections of the bent pipe fitting are same. The bent pipe fitting and one bend are in one-time injection moulding. The bends of the two ends of the bent pipe fitting piece are connected with a pipe material, and the sizes of the inner diameters of the bent pipe fitting piece are the same with the size of the inner diameter of the pipe material. The material of the non-necking bent pipe fitting piece can select all thermoplastics. The bent pipe fitting part of the non-necking plastic bent pipe fitting piece is in the smooth arc shape, and the sizes of the inner diameters of all cross sections of the bent pipe fitting are same and are the same with the size of the inner diameter of the connected pipe material, so fluid resistance can not be increased due to inner diameter narrowing. The non-necking bent pipe fitting piece has the advantages of compact structure and easy installation.
Description
Technical field
The utility model relates to a kind of no undergauge plastics Gap bridge bent-tube spare.
Background technique
Plastic pipe is widely used in the transportation of various fluids, as each class I liquid I, gas etc., in the intensive zone of some logistics, ducts and pipes crisscross often many, cause physical damnification for fear of mutual extrusion between the cross pipeline, need to use Gap bridge bent-tube spare, cross one another pipeline is set up, be spaced from each other.
Present two kinds of Gap bridge bent-tube spares of ubiquity, a kind of is the Gap bridge bent-tube spare of single injection-molded, another kind is a direct crooked tubing under the situation of heating, the Gap bridge bent-tube spare of formation.
The Gap bridge bent-tube spare of single injection-molded, bend pipe internal fluid channels are not smooth arcs, and for example the sector passage causes serious undergauge, so that the fluid flow amount reduces to increase greatly with pipeline inner fluid resistance greatly.With d20 (S3.2) pipe-line system is example, and the inner latus rectum of the Gap bridge bent-tube spare of prior art reduces usually more than 60%, can have a strong impact on flow, increases the pressure loss of fluid resistance and system.
Bend the Gap bridge bent-tube spare of moulding with tubing, because the memory effect of plastic materials, pass a bridge and curvedly can " recover the tubing shape " gradually.And the curved length of gap bridge that this method forms is oversize, brings inconvenience to installation.
The model utility content
The purpose of this utility model is to improve the deficiencies in the prior art, provides a kind of and can not dwindle the no undergauge plastics Gap bridge bent-tube spare that causes fluid resistance to increase because of internal diameter.
For achieving the above object, the utility model is taked following technological scheme:
A kind of no undergauge plastics Gap bridge bent-tube spare, this Gap bridge bent-tube spare respectively is connected an elbow by a Gap bridge bent-tube and its two ends and is formed, described Gap bridge bent-tube is slick and sly arc tubulose, and the port of described elbow is the straight tube interface, and the internal diameter size of each cross section of this Gap bridge bent-tube is all identical.Make and can not cause fluid resistance to increase by the fluid Gap bridge bent-tube spare of the present utility model of flowing through because of internal diameter dwindles.
Described Gap bridge bent-tube and wherein an elbow once injection moulding, the port that is connected with tubing of this elbow is bellmouth or socket, adopts with tubing and welds or bonding mode is connected.
Described Gap bridge bent-tube is connected by fusion weld mode or bonding way with wherein another elbow, two ports of this elbow all are bellmouths or all are sockets, perhaps to be respectively a port be that bellmouth and another port are sockets to two-port, adopts welding or bonding mode with being connected of tubing.
The material of described no undergauge Gap bridge bent-tube spare is a thermoplastic.
The utility model adopts three-step approach in course of working.The first step is divided into two product molding and forming with no undergauge plastics Gap bridge bent-tube spare of the present utility model.One is a Gap bridge bent-tube and an elbow once injection moulding wherein, becomes Gap bridge bent-tube and the integrated product of an elbow wherein (hereinafter to be referred as the curved assembly of passing a bridge); In second step, another elbow molding and forming becomes an elbow product.In the 3rd step, the curved assembly of will passing a bridge again is connected by fusion weld mode or bonding way with the elbow product.
Because the interior shape of Gap bridge bent-tube is smooth circular arc, so on the pipe-line system that is applied to same pipe series (uniform pressure rank), can not cause fluid resistance to increase because of internal diameter dwindles.
The material of described no undergauge Gap bridge bent-tube spare is a thermoplastic.As homopolymerization polybutylene (PB-H), random copolymerization polybutylene (PB-R), homo-polypropylene (PP-H), atactic copolymerized polypropene (PP-R), block copolymerization polypropylene (PP-B), polyethylene (PE), heat-proof polythene (PE-RT), rigid polyvinyl chloride (PVC-U), chlorinated polynvinyl chloride (CPVC) (PVC-C) or crosslinked polyethylene (PEX) etc.
The gap bridge turn of bilge of Gap bridge bent-tube of the present utility model is divided into slick and sly arc shape, and the internal diameter size of each cross section of this Gap bridge bent-tube is all identical.The internal diameter of Gap bridge bent-tube is identical with the pipe internal diameter of connection, can not cause fluid resistance to increase because of internal diameter dwindles, and no undergauge plastics Gap bridge bent-tube spare compact structure of the present utility model, and is easy for installation.
Below by drawings and Examples the utility model is further specified.
Description of drawings
The structural representation of the no undergauge gap bridge plastic bend tube spare that Fig. 1 provides for the utility model;
The decomposing schematic representation of the no undergauge gap bridge plastic bend tube spare that Fig. 2 provides for the utility model.
Embodiment
No undergauge gap bridge plastic bend tube spare of the present utility model as shown in Figure 1 and Figure 2 comprises pass a bridge curved assembly 1 and elbow 2, wherein, the curved assembly 1 of passing a bridge is the integral body that is obtained by a Gap bridge bent-tube and another elbow once injection moulding, the Gap bridge bent-tube of bending assembly 1 of passing a bridge is slick and sly arc tubulose, the inboard of connected elbow is slick and sly arc tubulose, and outside port is the straight tube interface, is convenient to be connected with tubing; One end of elbow 2 can be connected with the Gap bridge bent-tube of the curved assembly 1 of passing a bridge, and the port of the other end is the straight tube interface, is convenient to be connected with tubing.Like this, Gap bridge bent-tube spare can be connected with tubing by the elbow at two ends; Because Gap bridge bent-tube is slick and sly arc shape, the internal diameter size of each cross section of this Gap bridge bent-tube is all identical with interior wall construction, no change, when being applied to other pipe-line system of uniform pressure level, identical with it by pipe internal diameter that elbow connected, can not cause internal diameter to dwindle and fluid resistance sharply increases.
Material as this no undergauge Gap bridge bent-tube spare, can select all thermoplastics, as homopolymerization polybutylene (PB-H), random copolymerization polybutylene (PB-R), homo-polypropylene (PP-H), atactic copolymerized polypropene (PP-R), block copolymerization polypropylene (PP-B), polyethylene (PE), heat-proof polythene (PE-RT), rigid polyvinyl chloride (PVC-U), chlorinated polynvinyl chloride (CPVC) (PVC-C) or crosslinked polyethylene (PEX) etc.
Claims (4)
1, a kind of no undergauge plastics Gap bridge bent-tube spare, it is characterized in that, this Gap bridge bent-tube spare respectively is connected an elbow by a Gap bridge bent-tube and its two ends and is formed, described Gap bridge bent-tube is slick and sly arc tubulose, the port of described elbow is the straight tube interface, and the internal diameter size of each cross section of this Gap bridge bent-tube is all identical.
2, according to the described no undergauge plastics Gap bridge bent-tube spare of claim 1, it is characterized in that, described Gap bridge bent-tube and wherein an elbow once injection moulding, the port that is connected with tubing of this elbow is bellmouth or socket, adopts with tubing and welds or bonding mode is connected.
3, according to the described no undergauge plastics Gap bridge bent-tube spare of claim 2, it is characterized in that, described Gap bridge bent-tube is connected by fusion weld mode or bonding way with wherein another elbow, two ports of this elbow all are bellmouths or all are sockets, perhaps to be respectively a port be that bellmouth and another port are sockets to two-port, adopts welding or bonding mode with being connected of tubing.
4, according to the described a kind of no undergauge plastics Gap bridge bent-tube spare of claim 1, it is characterized in that the material of described no undergauge Gap bridge bent-tube spare is a thermoplastic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920107331U CN201377653Y (en) | 2009-04-14 | 2009-04-14 | Non-necking plastic bent pipe fitting piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920107331U CN201377653Y (en) | 2009-04-14 | 2009-04-14 | Non-necking plastic bent pipe fitting piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201377653Y true CN201377653Y (en) | 2010-01-06 |
Family
ID=41517761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920107331U Expired - Lifetime CN201377653Y (en) | 2009-04-14 | 2009-04-14 | Non-necking plastic bent pipe fitting piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201377653Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106996495A (en) * | 2017-06-08 | 2017-08-01 | 天津市管道工程集团有限公司 | A kind of new Gap bridge bent-tube |
| JP2019007619A (en) * | 2017-06-22 | 2019-01-17 | 積水化学工業株式会社 | Pipe and piping structure |
-
2009
- 2009-04-14 CN CN200920107331U patent/CN201377653Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106996495A (en) * | 2017-06-08 | 2017-08-01 | 天津市管道工程集团有限公司 | A kind of new Gap bridge bent-tube |
| JP2019007619A (en) * | 2017-06-22 | 2019-01-17 | 積水化学工業株式会社 | Pipe and piping structure |
| JP7071887B2 (en) | 2017-06-22 | 2022-05-19 | 積水化学工業株式会社 | Pipe and piping structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100106 |