CN202493891U - Spiral corrugated pipe formed by nailhead-hole D-shaped framework - Google Patents
Spiral corrugated pipe formed by nailhead-hole D-shaped framework Download PDFInfo
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- CN202493891U CN202493891U CN2012200056183U CN201220005618U CN202493891U CN 202493891 U CN202493891 U CN 202493891U CN 2012200056183 U CN2012200056183 U CN 2012200056183U CN 201220005618 U CN201220005618 U CN 201220005618U CN 202493891 U CN202493891 U CN 202493891U
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- Prior art keywords
- pipe
- shaped metal
- metal pipe
- holes
- metal tube
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- Expired - Fee Related
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- 239000002184 metal Substances 0.000 claims abstract description 49
- 229920003023 plastic Polymers 0.000 claims abstract description 24
- 239000004033 plastic Substances 0.000 claims abstract description 24
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 4
- 241000587161 Gomphocarpus Species 0.000 abstract 3
- 239000004698 Polyethylene Substances 0.000 description 12
- -1 polyethylene Polymers 0.000 description 12
- 229920000573 polyethylene Polymers 0.000 description 12
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 150000001875 compounds Chemical class 0.000 description 4
- 238000003723 Smelting Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 238000013517 stratification Methods 0.000 description 2
- 235000019994 cava Nutrition 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000006073 displacement reaction 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
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Abstract
The utility model relates to a spiral corrugated pipe formed by a nailhead-hole D-shaped framework, effectively allowing not only an increase in the strength of large-diameter corrugated pipes, but also fundamental improvement in the elasticity of large-diameter corrugated pipes. The spiral corrugated pipe comprises an inner pipe. The bottom of a cross section of a D-shaped metal pipe wound on the inner pipe body is provided with openings, in which plastics on the inner pipe wall are inserted. A semi-circular surface of the D-shaped metal pipe is provided with multiple nailhead through holes. Arranged in the inner wall of the D-shaped metal pipe, molten plastic layers are inserted into the multiple nailhead through holes and are cooled to form nailhead covers. The spiral corrugated pipe has the advantages that firstly, the D-shaped metal pipe is spirally wound on the inner pipe, so that the pressure-bearing capacity of the inner pipe is greatly enhanced, and the D-shaped metal pipe is like an arch-bridge structure with high bearing capacity; secondly, as plastic wedges are embedded in through holes which are provided in the bottom surface of the D-shaped metal pipe along the length direction, reliable combination of the D-shaped metal pipe and the inner pipe wall is guaranteed; and thirdly, the D-shaped metal pipe is provided with multiple inner horn-shaped holes, so that when melted and injected into the multiple inner horn-shaped holes in the D-shaped metal pipe, the plastic layers are cooled to form plastic rivet endshields which firmly connect the plastic layers and the D-shaped metal pipe together, thereby guaranteeing that layering of the corrugated pipe in use is avoided.
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 helical bellows that is made up of head of a nail hole D shape skeleton 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 and 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 helical bellows that constitutes by head of a nail hole D shape skeleton that essence improves.
Design proposal: in order to realize above-mentioned purpose of design.1, bottom, D shape metal tube cross section is provided with the design in the plastics embedding opening on opening and the inner tubal wall, is one of technical characteristics of the utility model.The purpose of doing like this is: because D shape metal tube bottom surface opening is to open along the pipe range of D shape metal tube; Be that suitable long through-hole, both sides are the support edge in the middle of the formed pipe bottom surface; And along long through hole with interior pipe compound tense, be used to make molten plastic on the inner tubal wall get into along in the long through-hole and with form snap fit along long through-hole, both played the effect of spacing support edge displacement; Play the rivet effect of riveted joint D shape metal tube again, put forward the intensity of interior pipe; Secondly, D shape metal tube is when receiving the external force extruding, and D shape metal tube is neither outwards taken off and moved, and also can inwardly not contract and move, and has guaranteed reliably compound between D shape metal tube and inner tubal wall.2, the design of a plurality of head of a nail through holes on the semicircle face of D shape metal tube is two of technical characteristicss of the present invention.The purpose of doing like this is: because head of a nail through hole flare structure; When molten plastic and the D shape inner wall of metal tube compound tense that has a plurality of tubaeform through holes; The plastics of its fusion externally effect of pressure get into down a plurality of inside trumpet shape through holes and formation and have nail and cover continuously connected fastener, and this continuously connected fastener firmly is connected as a single entity D shape metal tube and plastic layer.
Technological scheme: a kind of D shape helical bellows; It comprises interior pipe; The D shape metal tube cross section bottom of pipe on the pipe shaft is provided with that plastics embed in the opening on opening and the inner tubal wall in being spirally wound on; Have a plurality of head of a nail through holes on the semicircle face of D shape metal tube, inwall and molten plastic layer that the molten plastic layer is built in D shape metal tube embed cooling formation ailhead lid in a plurality of head of a nail through holes.
The utility model is compared with background technique, and the one, D shape metal tube is spirally wound on interior pipe, has not only greatly improved the bearing capacity of interior 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 has through hole to be embedded with the plastics wedge along having grown, guaranteed reliably compound between D shape metal tube and inner tubal wall; The 3rd, a plurality of inside trumpet shapes hole (head of a nail hole) design on the D shape metal tube; In the time of in fusion is injected into a plurality of inside trumpet shapes hole on the D shape metal tube; The cooling the Plastic Rivets headkerchief that forms plastic layer and D shape metal tube firmly are connected as a single entity, guaranteed that bellows in use stratification can not take place.
Description of drawings
Fig. 1 is the structural representation of the helical bellows that is made up of head of a nail hole D shape 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; The D shape metal tube 2 cross sections bottom of pipe on 1 pipe shaft is provided with that plastics embed in the opening 4 on opening and the inner tubal wall in being spirally wound on, and has a plurality of head of a nail through holes 5 on the semicircle face of D shape metal tube 2, promptly said ailhead lid flare.Inwall and molten plastic layer that molten plastic layer 3 is built in D shape metal tube 2 embed cooling formation ailhead lid in a plurality of head of a nail through holes 5.Said D shape metal tube 2 bottom surface A/Fs are little 20 millimeters.Said opening is meant D shape metal tube length direction opening 4.Said D shape metal tube 2 adopts steel band to make.
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 (4)
1. helical bellows that constitutes by head of a nail hole D shape skeleton; It comprises interior pipe (1); It is characterized in that: be spirally wound on D shape metal tube (2) cross section bottom on interior pipe (1) pipe shaft and be provided with that plastics embed in the openings (4) on opening and the inner tubal wall; Have a plurality of head of a nail through holes (5) on the semicircle face of D shape metal tube (2), inwall and molten plastic layer that molten plastic layer (3) is built in D shape metal tube (2) embed cooling formation ailhead lid in a plurality of head of a nail through holes (5).
2. the helical bellows that is made up of head of a nail hole D shape skeleton according to claim 1 is characterized in that: said D shape metal tube (2) bottom surface A/F is little 20 millimeters.
3. the helical bellows that is made up of head of a nail hole D shape skeleton according to claim 1 and 2 is characterized in that: said opening is meant D shape metal tube length direction shape port.
4. the helical bellows that is made up of head of a nail hole D shape skeleton according to claim 1 is characterized in that: said ailhead lid flare.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200056183U CN202493891U (en) | 2012-01-09 | 2012-01-09 | Spiral corrugated pipe formed by nailhead-hole D-shaped framework |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200056183U CN202493891U (en) | 2012-01-09 | 2012-01-09 | Spiral corrugated pipe formed by nailhead-hole D-shaped framework |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202493891U true CN202493891U (en) | 2012-10-17 |
Family
ID=47000120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200056183U Expired - Fee Related CN202493891U (en) | 2012-01-09 | 2012-01-09 | Spiral corrugated pipe formed by nailhead-hole D-shaped framework |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202493891U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104534256A (en) * | 2014-11-14 | 2015-04-22 | 常州市盈顺电子有限公司 | Casted semicircular tube |
-
2012
- 2012-01-09 CN CN2012200056183U patent/CN202493891U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104534256A (en) * | 2014-11-14 | 2015-04-22 | 常州市盈顺电子有限公司 | Casted semicircular tube |
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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 |