CN202493790U - Helical corrugated pipe consisting of groove-shaped framework - Google Patents
Helical corrugated pipe consisting of groove-shaped framework Download PDFInfo
- Publication number
- CN202493790U CN202493790U CN2012200054489U CN201220005448U CN202493790U CN 202493790 U CN202493790 U CN 202493790U CN 2012200054489 U CN2012200054489 U CN 2012200054489U CN 201220005448 U CN201220005448 U CN 201220005448U CN 202493790 U CN202493790 U CN 202493790U
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- Prior art keywords
- pipe
- groove
- shaped
- corrugated pipe
- strip
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- Expired - Fee Related
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- 239000002184 metal Substances 0.000 claims abstract description 38
- 229920003023 plastic Polymers 0.000 claims abstract description 9
- 239000004033 plastic Substances 0.000 claims abstract description 9
- 239000004698 Polyethylene Substances 0.000 description 12
- -1 polyethylene Polymers 0.000 description 12
- 229920000573 polyethylene Polymers 0.000 description 12
- 238000000034 method Methods 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000003723 Smelting Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 229920000098 polyolefin Polymers 0.000 description 2
- 235000019994 cava Nutrition 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000013517 stratification Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The utility model relates to a helical corrugated pipe consisting of a groove-shaped framework and the helical corrugated pipe can effectively improve the strength of the large-caliber corrugated pipe and fundamentally improve elasticity of the large-caliber corrugated pipe and comprises an inner pipe. Strip-shaped grooves are compressed in a metal pipe bottom helically wrapping on the inner pipe body and a plastic layer is covered on an inner wall of the metal pipe with strip-shaped grooves. The corrugated pipe is advantageous in that by means of the surface contact of the D-shaped metal pipe bottom with the inner pipe surface, pressure on the inner pipe is greatly mitigated when the D-shaped metal pipe is pressed and the D-shaped metal pipe is like an arch bridge structure, so bearing capacity is large; and because strip-shaped grooves of the D-shaped metal pipe bottom and the inner pipe form clamp connection cooperation, support intensity and loading capacity of the inner pipe are greatly improved and that the inner pipe and the D-shaped metal pipe surface cannot be divided into layers is ensured and integral intensity of the corrugated pipe is greatly raised.
Description
Technical field
The utility model relates to a kind ofly can not only improve heavy caliber bellows intensity effectively, and can make the elasticity of heavy caliber bellows obtain a kind of D shape helical bellows and the making method that essence improves, and belongs to bellows and makes the field.
Background technique
CN201078525Y, title " socket joint electric smelting jointing type steel band reinforced polyethylene spiral ripple pipe ", it is used to solve the problem of easy seepage of steel band reinforced polyethylene spiral ripple pipe connection interface and poor reliability.Socket joint electric smelting jointing type steel band reinforced polyethylene spiral ripple pipe; Be the metal frame that twines to be fixed on the inner layer polyethylene with outer layer polyethylene; Particularly an end of bellows is provided with socket, and the other end of bellows is provided with bellmouth, imbeds a circle electric heating element on the bellmouth inwall and forms.Adopt this socket joint electric smelting jointing type steel band reinforced polyethylene spiral ripple pipe, can be widely used in the connection construction of plastic tube.Its deficiency: the one, metal frame is the outer structure of taking off, and what form with inner layer polyethylene is that the line face contact, rather than face contacts; Not only plyability is poor; And under the effect of external force, metal frame is prone to take off mobile outward, causes inner layer polyethylene is destroyed; The quality of direct shadow pipe matter, even cause inner layer polyethylene damaged; The 2nd, support strength is low, because metal frame is the outer structure of taking off, outwards move its metal frame both sides of external pressure, not only causes the layering of metal frame and inner layer polyethylene, and cause the direct reduction of inner layer polyethylene intensity; The 3rd, because outer layer polyethylene and metal frame are two kinds of material different, had nothing in common with each other by its coefficient that expands with heat and contract with cold of Influence of Temperature, therefore stratification in use takes place inevitably, cause bellows intensity sharply to descend, bellows caves in.
Summary of the invention
Purpose of design: avoid the deficiency in the background technique, design a kind of heavy caliber bellows that can not only improve effectively and strengthen, and can make the elasticity of heavy caliber bellows obtain a kind of helical bellows that constitutes by the groove shaped skeleton that essence improves.
Design proposal: in order to realize above-mentioned purpose of design.The metal tube cross section is the design of D shape, is the major technique characteristic of the utility model.The purpose of doing like this is: because D shape metal tube bottom recesses is that plastic strip that this groove is embedded and inner tubal wall are one, have both played the effect of support limit along the compacting of D shape metal pipe range; Played the effect of wedge again; Guaranteed that interior pipe and D shape metal tube are not stratified, and improved the compressive strength of interior pipe effectively, when D shape metal tube is receiving external force when extruding; D shape metal tube can not be shifted, and has guaranteed reliably compound between D shape metal tube and inner tubal wall.
Technological scheme: a kind of D shape helical bellows, it comprises interior pipe, and the metal tube bottom surface in being spirally wound on the pipe pipe shaft is pressed with strip groove, and the inner tube wall that has the strip groove metal tube is covered with plastic layer.
The utility model is compared with background technique, and the one, D shape metal tube bottom surface contacts with the inner tube surface face, when making D shape metal tube pressurized, has greatly alleviated the pressure of internal pipe, and D shape metal tube is just as the arch bridge structure, and bearing capacity is big; The 2nd, because D shape metal tube bottom surface strip groove and interior pipe formation snap fit has not only greatly improved interior pipe support strength and bearing capacity, and guaranteed that interior pipe and D shape metal tube face are not stratified, greatly improved the bulk strength of bellows.
Description of drawings
Fig. 1 is the structural representation of the helical bellows that is made up of the groove shaped skeleton.
Fig. 2 is the cross section structure schematic representation of D shape metal tube among Fig. 1.
Embodiment
Embodiment 1: with reference to accompanying drawing 1-2.A kind of D shape helical bellows, pipe 1 in it comprises, metal tube 2 bottom surfaces in being spirally wound on pipe 1 pipe shaft are pressed with strip groove, and the inner tube wall that has strip groove 4 metal tubes 2 is covered with plastic layer 3.The bottom land of said strip groove 4 is wide, notch is little.Said strip groove 4 is meant D shape metal tube length direction groove.Said D shape metal tube 2 adopts steel band to make.Its making method: adopt the metal tube producer that steel band is processed the semicircle D shape metal tube that the bottom has groove; Adopt the heavy caliber polyolefin winding growth pipe production line of claimant's manufacturing in making bellows, to manage in 1 process then; While make pipe in the bellows, with semicircle D shape pipe be wrapped on the bellows and the ripple tube wall on plastics embed in the groove of semicircle D shape pipe, adopt the heavy caliber polyolefin of claimant's manufacturing to twine at last to increase the pipe production line that molten plastic is compounded in semicircle D shape pipe and go up and formation plastic layer 3 (skin).
What need understand is: the detailed text description though above-mentioned mentality of designing to the utility model is contrasted; But these text descriptions; Just the simple text of the utility model mentality of designing is described, rather than to the restriction of the utility model mentality of designing, any combination that does not exceed the utility model mentality of designing; Increase and modification, all fall in the protection domain of the utility model.
Claims (3)
1. helical bellows that is made up of the groove shaped skeleton, it comprises interior pipe, it is characterized in that: the metal tube bottom surface in being spirally wound on the pipe pipe shaft is pressed with strip groove, and the inner tube wall that has the strip groove metal tube is covered with plastic layer.
2. the helical bellows that is made up of the groove shaped skeleton according to claim 1 is characterized in that: the bottom land of said strip groove is wide, notch is little.
3. the helical bellows that is made up of the groove shaped skeleton according to claim 1 and 2 is characterized in that: said strip groove is meant D shape metal tube length direction groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200054489U CN202493790U (en) | 2012-01-09 | 2012-01-09 | Helical corrugated pipe consisting of groove-shaped framework |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200054489U CN202493790U (en) | 2012-01-09 | 2012-01-09 | Helical corrugated pipe consisting of groove-shaped framework |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202493790U true CN202493790U (en) | 2012-10-17 |
Family
ID=47000019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200054489U Expired - Fee Related CN202493790U (en) | 2012-01-09 | 2012-01-09 | Helical corrugated pipe consisting of groove-shaped framework |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202493790U (en) |
-
2012
- 2012-01-09 CN CN2012200054489U patent/CN202493790U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121017 Termination date: 20190109 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |