CN202868125U - D-shaped riveting helical bellow - Google Patents
D-shaped riveting helical bellow Download PDFInfo
- Publication number
- CN202868125U CN202868125U CN 201220005621 CN201220005621U CN202868125U CN 202868125 U CN202868125 U CN 202868125U CN 201220005621 CN201220005621 CN 201220005621 CN 201220005621 U CN201220005621 U CN 201220005621U CN 202868125 U CN202868125 U CN 202868125U
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- pipe
- metal pipe
- shaped metal
- face
- shaped
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- 239000002184 metal Substances 0.000 claims abstract description 53
- 229920003023 plastic Polymers 0.000 claims abstract description 30
- 239000004033 plastic Substances 0.000 claims abstract description 30
- 238000002844 melting Methods 0.000 abstract description 8
- 230000008018 melting Effects 0.000 abstract description 8
- 229920000573 polyethylene Polymers 0.000 description 12
- 239000004698 Polyethylene Substances 0.000 description 9
- -1 polyethylene Polymers 0.000 description 9
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 229920000098 polyolefin Polymers 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
- 238000010586 diagram 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
- 238000004804 winding Methods 0.000 description 1
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- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The utility model relates to a D-shaped riveting helical bellow which can not only improve the strength of a large-caliber bellow effectively, but also cause the elasticity of the large-caliber bellow to be improved fundamentally. The D-shaped riveting helical bellow comprises an inner pipe; a metal pipe is wound on the pipe body of the inner pipe; the section of the metal pipe is D-shaped; a plurality of through holes are formed in the semi-circular surface of the D-shaped metal pipe; each through hole takes the shape of an inward horn; and a plastic layer is compounded on the pipe face of the D-shaped metal pipe, and is embedded into the through holes to form a plastic rivet joint. The D-shaped riveting helical bellow has the advantages that firstly, the bottom surface of the D-shaped metal pipe is in surface contact with the surface of the inner pipe, so that when the D-shaped metal pipe is pressed, the pressure to the inner pipe is reduced greatly, and as the D-shaped metal pipe adopts a structure like an arch bridge, the bearing capability is high; and secondly, since a plurality of circular truncated cone holes are formed in the pipe face of the D-shaped metal pipe and when the plastic layer positioned on the pipe face of the D-shaped metal pipe is compounded through melting, the plastic layer is injected into the circular truncated cone holes in the pipe face of the D-shaped metal pipe to form a plastic riveting head cover; and the riveting head cover connects the plastic layer on the pipe face of the D-shaped metal pipe with the pipe face of the D-shaped metal pipe firmly, so that the phenomenon that the bellow is layered in use is avoided.
Description
Technical field
The utility model relates to a kind of heavy caliber bellows that can not only effectively improve to be strengthened, and can make the elasticity of heavy caliber bellows obtain a kind of D shape riveted joint helical bellows that essence improves, and belongs to bellows and makes the field.
Background technique
CN201078525Y, title " steel strip enhancement polythene helical bellows of spigot-and-socket electric melting connecting type ", it is used for solving the problem of the easy seepage of steel band reinforced polyethylene spiral ripple pipe connection interface and poor reliability.Steel strip enhancement polythene helical bellows of spigot-and-socket electric melting connecting type, with outer layer polyethylene the metal frame that twines to be fixed on the inner 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 steel strip enhancement polythene helical bellows of spigot-and-socket electric melting connecting type, can be widely used in the connection construction of plastic tube.Its deficiency: the one, metal frame is the outer structure of taking off, what form with inner layer polyethylene is that the line face contacts, rather than face contact, not only plyability is poor, and under the effect of external force, metal frame is easily outer takes off movement, 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, its metal frame both sides of external pressure are outwards mobile, not only cause 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 different materials, be subjected to temperature to affect its coefficient that expands with heat and contract with cold different, so stratification in use occurs 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 effectively improve and strengthen, and can make the elasticity of heavy caliber bellows obtain a kind of D shape riveted joint helical bellows that essence improves.
Design proposal: in order to realize above-mentioned purpose of design.Having the design that a plurality of through holes and through hole are inside trumpet shape on the semicircle face of D shape metal tube, is technical characteristics of the present utility model.The purpose of doing like this is: because a plurality of through hole inside trumpet shape structures on the semicircle face of D shape metal tube, when molten plastic and the semicircle face compound tense that is furnished with the D shape metal tube of a plurality of inside trumpet shape through holes, the plastics of its melting externally enter a plurality of inside trumpet shape through holes and form with nail under the effect of pressure and cover continuously connected fastener, and plastic layer and D shape metal tube face that this continuously connected fastener will be compounded on the D shape metal tube face firmly are connected as a single entity.
Technological scheme: a kind of D shape helical bellows, it comprises inner tube, be wrapped in metal tube cross section on the inner tube pipe shaft and be and have a plurality of through holes on D shape metal tube and the semicircle face of D shape metal tube and through hole is inside trumpet shape, the pipe face of D shape metal tube has plastic layer and plastic layer to embed to form the plastic riveting head in a plurality of through holes again.
The utility model is compared with background technique, the one, D shape metal tube bottom surface and inner tube plane-plane contact, so that during D shape metal tube pressurized, greatly alleviated the pressure to inner tube, and D shape metal tube is just as the arch bridge structure, and bearing capacity is large; The 2nd, owing to having a plurality of inside trumpet shape holes on the D shape metal tube face and being positioned at plastic layer on the D shape metal tube face at the melting compound tense, be injected in a plurality of inside trumpet shapes hole on the D shape metal tube face, form the Plastic Rivets headkerchief, plastic layer and D shape metal tube face that this Plastic Rivets headkerchief will be positioned on the D shape metal tube face firmly are connected as a single entity, and have guaranteed that bellows in use stratification can not occur.
Description of drawings
Fig. 1 is the structural representation of D shape riveted joint helical bellows.
Fig. 2 is the cross section structure schematic diagram 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, it comprises inner tube 1, be wrapped in metal tube 2 cross sections on inner tube 1 pipe shaft be have on D shape metal tube and the D shape metal tube 2 semicircle faces a plurality of through holes 4 and through hole 4 near the area of plastic layers less than being inside trumpet shape near via area, the pipe face of D shape metal tube 2 has plastic layer 3 and plastic layer to embed a plurality of through hole 4 interior formation plastic riveting heads again.Described D shape metal tube 2 adopts steel band to make.Its making method: adopt the metal tube producer that steel band is made the bottom and be the semicircle D shape metal tube of plane of the opening, then adopt the heavy caliber polyolefin of claimant's manufacturing to twine growth pipe production line in making bellows inner tube 1 process, make the bellows inner tube on one side, on one side semicircle D shape pipe is wrapped in a plurality of through holes 4 interior formation plastic riveting heads that plastics on the bellows and on the corrugated pipe wall embed semicircle D shape metal tube face, namely because D shape metal tube 2 inwalls are tactile mutually with the inner tube melting, therefore the plastics of melting externally enter D shape metal tube under the effect of pressure in upper a plurality of inside trumpet shape through holes and form with nail and cover continuously connected fastener, plastic layer and D shape metal tube face that this continuously connected fastener will be compounded on the D shape metal tube face firmly are connected as a single entity, and adopt at last the heavy caliber polyolefin winding growth pipe production line of claimant's manufacturing that molten plastic is compounded on the semicircle D shape pipe face.
What need to understand is: although above-mentioned to the mentality of designing of the present utility model detailed text description of contrasting; 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 present utility model.
Claims (1)
1. a D shape is riveted helical bellows, it comprises inner tube (1), it is characterized in that: be wrapped in metal tube (2) cross section on inner tube (1) pipe shaft be have on D shape metal tube and the semicircle face of D shape metal tube (2) a plurality of through holes (4) and through hole (4) near the area of plastic layer less than being inside trumpet shape near via area, the pipe face of D shape metal tube (2) has plastic layer (3) and plastic layer to embed to form the plastic riveting head in a plurality of through holes (4) again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220005621 CN202868125U (en) | 2012-01-09 | 2012-01-09 | D-shaped riveting helical bellow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220005621 CN202868125U (en) | 2012-01-09 | 2012-01-09 | D-shaped riveting helical bellow |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202868125U true CN202868125U (en) | 2013-04-10 |
Family
ID=48034845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220005621 Expired - Fee Related CN202868125U (en) | 2012-01-09 | 2012-01-09 | D-shaped riveting helical bellow |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202868125U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108700228A (en) * | 2015-10-09 | 2018-10-23 | 欧莱克桑德·米克拉约维奇·博拉新 | Spiral welded polymer products with porous walls and thermoplastic profiles for their production |
| CN109774737A (en) * | 2019-03-13 | 2019-05-21 | 常州今创风挡系统有限公司 | Windscreen in a kind of novel motor-car |
-
2012
- 2012-01-09 CN CN 201220005621 patent/CN202868125U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108700228A (en) * | 2015-10-09 | 2018-10-23 | 欧莱克桑德·米克拉约维奇·博拉新 | Spiral welded polymer products with porous walls and thermoplastic profiles for their production |
| CN109774737A (en) * | 2019-03-13 | 2019-05-21 | 常州今创风挡系统有限公司 | Windscreen in a kind of novel motor-car |
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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: 20130410 Termination date: 20190109 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |