CN2627321Y - Plastic helical bellow - Google Patents
Plastic helical bellow Download PDFInfo
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- CN2627321Y CN2627321Y CN 03249333 CN03249333U CN2627321Y CN 2627321 Y CN2627321 Y CN 2627321Y CN 03249333 CN03249333 CN 03249333 CN 03249333 U CN03249333 U CN 03249333U CN 2627321 Y CN2627321 Y CN 2627321Y
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- spiral
- pipe
- reinforced structure
- pipe wall
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Abstract
A plastic spiral corrugated pipe is provided. The peripheral surface of the pipe wall structure is provided with an outer convex rib reinforced structure with spiral wrap type; the pipe wall structure is the form of a sequent solid-wall pipe-shaped structure that the continuous strip sheets take the pipe center line as the axial line to conduct the spiral wrap and use each adjacent sheet edge in the spiral circumference to successively conduct the mutual bonding and amalgamation; the rib reinforced structure with arcuate protruding cross section of the continuous structure body form provided with a hatch takes the same spiral wrap form to be connected with the peripheral surface of the pipe wall structure. The arcuate structure two ends of the rib reinforced structure cross section are provided with connection fins used for the pipe wall structure fusion. On the basis of effective guarantee and improvement of long-term and short-term quality reliability of the pipe, compared with pipe by adopting the closed structure reinforce rib as the reinforcement, the plastic spiral corrugated pipe has a more reasonable structure, and under the condition of the same pipe weight, the stiffness is higher, which can save the used amount of the material with better economic benefits.
Description
Technical field
What the present invention relates to is a kind of plastic ripple tubing that the spirality stiffening rib strengthens structure that has.
Background technique
In the sewer and various drain pipe in city, the use of various forms plastic tube is more and more.Usually do not have pressure owing in its pipe,, be provided with the existing many reports of plastic tube and the use of multi-form reinforcing rib structure in the tube wall periphery for improving the performance of its opposing extraneous pressure or impact.The plastic tube of present this structural type and corresponding preparation method can have following several: a kind of is the plastic tube that adopts direct extruding and moulding.Tool representative be double-wall corrugated pipe and ring-stiffened pipe by direct extruding and moulding, its inner wall layer is continuously smooth-going surface, outer wall layer then is respectively the waveform configuration of hollow or solid cyclic rib type structure.During manufacturing, the inner wall layer of this class tubing is to extrude the continuous tubing that forms by the plastics under the molten state; Outer wall layer as reinforcing rib structure, then be at the plastics of inner tube wall layer also not fully under the situation of cooling, corresponding " trough " the position welding of continuous reinforcing rib structure layer that another is had appropriate configuration form such as hollow ripple ring rib is on the outer circumferential face of tube wall.Though the reinforced structure of forms such as the hollow ripple ring rib of this outer pipe wall layer can strengthen the rigidity of tubing effectively, the price of its manufacturing equipment is very expensive, and the difficulty of applying is very big.
Another kind of type is with helically-wound shaped plastic tube.Wherein representative structure, be at common form or the special-shaped rectangular tube that has a fin is extruded and thoroughly behind the cooling and shaping, again by double heating to molten state, make the sidewall between the adjacent rectangle pipe or the tube wall of the corresponding tubing of adjacent fin mutual welding formation.Therefore in the structural pipe wall of these tubing, by double heating and the welded seam that forms all through its whole tube wall internal and external layer.Thereby the quality of these tubing depends on the quality of formed welded seam after this double heating fully.Because these welded seams of outer room in the whole tube wall are very long (as on 500 millimeters waste pipes of diameter, the welded seam length of per 100 mitron materials can reach 5000m), in case these must cause whole tubing to lose efficacy through a certain local cracking that occurs of the welded seam of whole structural pipe wall.
It then is one of key factor that guarantees its quality that the weld portion potential energy of tubing is kept with mother metal equal strength and equivalent life as far as possible.By employing double heating mode the plastic article under two normal temperature being fused into an integral body, and will making the intensity at its welded seam place and life-span consistent with mother metal, is very high in technologic requirement.At first the control to heating-up temperature must be in a very narrow scope; Next is that the claimed range of positive pressure size that face of weld is applied is also very narrow, and pressing time is longer, and also require very long cool time to face of weld under certain positive pressure having.These conditions and requirement Chang Buneng in the process of making tubing is guaranteed.No matter be on the manufacturing process temperature, to change, still be subjected to the influence (as at winter, Xia Liangji that the very big temperature difference can be arranged usually) that ambient temperature changes, or welded seam applied the size of positive pressure and/or the variation of time etc., all the molten quality that makes seam crossing and mother metal equal strength and equivalent life there are considerable influence.Particularly in the manufacture process of above-mentioned helical bellows, for welding during to the fin heating of these abnormal shape rectangular tube both sides, what all adopt usually is to be higher than 1000 ℃ flame directly to roast.Though the flap surface fusion of flame place of arrival, high temperature also very easily causes macromolecular decomposition of plastics and chain rupture simultaneously, and the quality at its welded seam position just more is difficult to guarantee.Therefore can see these tubing in actual use and be subjected to falling in loading and unloading, transportation or work progress and bump or part when being squeezed, Chang Yi causes the welded seam position cracking of tubing, or spring-like is scattered and the phenomenon destroyed in the shape of a spiral.
The model utility content
At above-mentioned situation, the utility model will provide a kind of plastic spiral bellows of new structure form, make its deficiency that can overcome above-mentioned all kinds of tubing, guarantee effectively and improve tubing reliability recent and at a specified future date.Simultaneously, compare as the tubing that strengthens body with the remain silent stiffening rib of structural type of employing, also can be more reasonable on the structure, and save material consumption, have the more economic benefit of reason.
Plastic spiral bellows of the present utility model is the outer convex rib shape reinforced structure that the spiral wrap style is arranged on the outer circumferential face of structural pipe wall.Wherein, the structural pipe wall of this helical bellows is to be that the axis spiral twines by the strip sheet material with the center line of pipe, and with each the adjacent sheet edge in its spiral circumference successively mutually overlap joint merge and form continuous solid wall pipe shape structure; The muscle shape reinforced structure that cross section is the band opening continuous structure bodily form formula of arciform evagination is engaged on the outer circumferential face of structural pipe wall with same spiral winding form, and the two ends of the arching of this muscle shape reinforced structure cross section have the engagement tabs that fuses usefulness with structural pipe wall.
Because the structural pipe wall of the utility model said structure form plastic spiral bellows, be to overlap mutually successively with its each neighboring edge by the strip plastic sheet of doing the spiral winding to merge the overall structure that forms, therefore adopt suitable rolling body to the molten sheet material edge of mutual overlap joint impose roll after, can form a seamless and smooth-going real wall light wall pipe structure continuously so that the mutual fusion of this overlapping part engages.Because this real wall light wall pipe structure is to be formed by the mutual fusion of sheet material under molten state that spiral twines, thereby can guarantee that it fuses having same intensity and life-span of seam position and silver mother metal, and there is not essential difference with the real wall light wall pipe structure that obtains with the direct extrusion way of routine.Then, again will be equally thermoplastic and make muscle shape reinforced structure body that same spiral twines form and press and be melted into this structural pipe wall periphery that still remains molten state, after its mutual fusion is engaged, promptly become the plastic spiral bellows that the above-mentioned inwall of the utility model is smooth, outer wall has spiral salient muscle shape enhancing structure.Its remarkable advantage is with regard to being to reduce sex change such as the macromolecular decomposition of plastics, chain rupture to greatest extent and influence equal strength and the equivalent life that it fuses position and slip mother metal and/or reinforcing rib structure and pipe wall material.
In said structure,, in the optimal way of more recommending, can include though the position that fuses of the outer convex rib shape reinforced structure of said this spiral wrap style on the structural pipe wall periphery can not have special requirement:
A kind of mode, be adopt make said do that spiral twines and with each neighboring edge successively mutually the mutual clinch potential energy of each strip sheet material of merging of overlap joint have the overlapping width of enough overlap joints, and make each engagement tabs in the said outer convex rib shape reinforced structure, all be stacked and placed on the form at the fusion overlapping part place of each the corresponding strip sheet material neighboring edge on the structural pipe wall respectively.This kind structural type helps further improving the intensity at corresponding each the fusion overlapping part place in the structural pipe wall, help further improving the withstand voltage of tubing and anti-ly destroy, the reliability of anti-sealing-off cracking undoubtedly can both be desirable more, guarantees and improve the reliability of the recent and quality at a specified future date of tubing effectively.
Another kind of mode is the form that adopts on the fusion overlapping part place of the strip sheet material neighboring edge that the opening portion that makes in the arciform cross section of said outer convex rib shape reinforced structure each corresponding spiral on the structural pipe wall twines.Even the advantage of this kind structural type be the overlapping part place certain some problems appear, a little leakage of material also can be closed in the arciform cavity volume of this outer convex rib shape reinforced structure in the pipe, thereby plays complementary secondary seal effect.
Concrete form or shape as for said this outer convex rib shape reinforced structure in the said structure can adopt as required.For example, concrete form for the arciform cross section of this outer convex rib shape reinforced structure, can be for being the trapezoidal continuous structure body of opening, or opening rectangle or square continuous structure body, also can be adopted as the continuous structure body etc. of the arciform cross section of smooth curve form of band opening.
In addition, above-mentioned said this outer convex rib shape reinforced structure removes and can adopt the single layer structure of single material form external, can also adopt the arciform cross section continuous structure body of the composite structure form that is made of two or more material layers as required.
Test shows, the plastic spiral bellows of the utility model said structure form can overcome the deficiency of above-mentioned present similar tubing, guarantees effectively and has improved tubing reliability recent and at a specified future date.Simultaneously, compare with the employing stiffening rib of structural type blends into the structural pipe wall periphery as strengthening body the similar tubing of remaining silent, also more reasonable on its structure.When the weight of tubing was identical, the rigidity of the utility model tubing was higher, and can save the consumption of material, had the more economic benefit of reason.
According to foregoing, do not breaking away under the above-mentioned basic fundamental thought of the utility model prerequisite modification, replacement or the change that can also make various ways according to the ordinary skill knowledge and the customary means of related domain.
Below in conjunction with embodiment, foregoing of the present utility model is described in further detail again by the accompanying drawing illustrated embodiment.But this should be interpreted as that the scope of the above-mentioned theme of the utility model only limits to following example.All technology that is realized based on the utility model foregoing all belong to scope of the present utility model.
Description of drawings
Fig. 1 is the schematic representation of a kind of structure of the utility model plastic spiral bellows.
Fig. 2 is the schematic representation of a kind of preferred structure in the utility model plastic spiral bellows.
Fig. 3 is the structural representation that adopts another kind of evagination strength bar among Fig. 2.
Fig. 4 is the structural representation that adopts another evagination strength bar among Fig. 2.
Fig. 5 is the schematic representation of another kind of preferred structure in the utility model plastic spiral bellows.
Fig. 6 is the structural representation that adopts the utility model plastic spiral bellows of compound evagination strength bar.
Embodiment
In the utility model plastic spiral bellows shown in Figure 1, the outer convex rib shape reinforced structure 4 of spiral wrap style is arranged on the outer circumferential face of structural pipe wall 1.Structural pipe wall 1 wherein is to be that the axis spiral twines by continuous strip sheet material 2 with the center line of pipe, and with each the adjacent sheet edge in its spiral circumference successively mutually overlap joint merge formed continuous solid wall pipe shape structure; This outer convex rib shape reinforced structure 4 is the continuous structure bodily form formula of the trapezoidal evagination arcuate zone opening of opening for cross section, and blend on the outer circumferential face of structural pipe wall 1 with same spiral winding form, the two ends of these muscle shape reinforced structure 4 cross section archings have the engagement tabs 5 that fuses usefulness with structural pipe wall 1.The juncture of the outer convex rib of this shown in figure shape reinforced structure 4 on structural pipe wall 1 periphery wherein is that the neighboring edge of the strip sheet material 2 that twines of each spiral merges overlapping part and all is in form between each outer convex rib shape reinforced structure 4.
A kind of preferred construction form that shown in Figure 2 is in the utility model plastic spiral bellows.Be with the different of Fig. 1 structure, spiral is twined and with its neighboring edge successively mutually the mutual fusion overlapping part 3 of the strip sheet material 2 that merges of overlap joint have the overlapping width of enough overlap joints, and make the engagement tabs 5 of each outer convex rib shape reinforced structure 4 all be stacked and placed on overlapping part 3 places that corresponding each sheet material 2 neighboring edge merge mutually respectively.
Plastic spiral bellows shown in Figure 3 and the difference of Fig. 2 are that the cross section that this outer convex rib shape reinforced structure 4 adopts is the arciform continuous structure body of the smooth curve form of being with opening.
Plastic spiral bellows shown in Figure 4 and the difference of Fig. 2 are that what this outer convex rib shape reinforced structure 4 adopted is rectangle or the square arciform continuous structure body that cross section is opening.
Shown in Figure 5 is another kind of preferred construction form in the utility model plastic spiral bellows.Be with the different of Fig. 1 structure, this outer convex rib shape reinforced structure 4 engages with structural pipe wall 1, what adopt is the arciform opening portion that makes in said outer convex rib shape reinforced structure 4 cross sections, the form on fusion overlapping part 3 places that formed by each sheet material 2 neighboring edge on the structural pipe wall 1.
The continuous structure body of the complex form that constitutes by a kind of material layer 6 and another kind of material layer 7 that the structure of plastic spiral bellows shown in Figure 6 and the basically identical of Fig. 2, difference are that outer convex rib shape reinforced structure 4 adopts.
Claims (7)
1. plastic spiral bellows, the outer convex rib shape reinforced structure that the spiral wrap style is arranged on the outer circumferential face of structural pipe wall, the structural pipe wall (1) that it is characterized in that helical bellows is to be that the axis spiral twines by continuous strip sheet material (2) with the center line of pipe, and with each the adjacent sheet edge in its spiral circumference successively mutually overlap joint merge to form continuous solid wall pipe shape structure, the muscle shape reinforced structure (4) that cross section is the band opening continuous structure bodily form formula of arciform evagination is engaged on the outer circumferential face of structural pipe wall (1) with the form that same spiral twines, and the arching two ends of this muscle shape reinforced structure (4) cross section have the engagement tabs (5) that fuses usefulness with structural pipe wall (1).
2. plastic spiral bellows as claimed in claim 1 is characterized in that the overlapping part place that the said outer convex rib shape reinforced structure (4) and the form that the engages neighboring edge that corresponding each spiral twines strip sheet material (2) for each engagement tabs (5) all is stacked and placed on respectively of structural pipe wall (1) merge mutually.
3. plastic spiral bellows as claimed in claim 1 is characterized in that on the overlapping part place that neighboring edge that the form that engages of said outer convex rib shape reinforced structure (4) and structural pipe wall (1) is twined strip sheet material (2) for the opening portion in its arciform cross section across corresponding each spiral merges mutually.
4. plastic spiral bellows as claimed in claim 1 is characterized in that said outer convex rib shape reinforced structure (4) is for being the continuous structure body of the trapezoidal arciform cross section of opening.
5. plastic spiral bellows as claimed in claim 1 is characterized in that said outer convex rib shape reinforced structure (4) is for being the continuous structure body of opening rectangle or square arciform cross section.
6. plastic spiral bellows as claimed in claim 1 is characterized in that said outer convex rib shape reinforced structure (4) is for being the continuous structure body of the arciform cross section of smooth curve form of being with opening.
7. as the described plastic spiral bellows of one of claim 1 to 6, the arciform cross section continuous structure of the complex form body that it is characterized in that serving as reasons said outer convex rib shape reinforced structure (4) two-layer at least different materials constitutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03249333 CN2627321Y (en) | 2003-07-03 | 2003-07-03 | Plastic helical bellow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03249333 CN2627321Y (en) | 2003-07-03 | 2003-07-03 | Plastic helical bellow |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2627321Y true CN2627321Y (en) | 2004-07-21 |
Family
ID=34252665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03249333 Expired - Lifetime CN2627321Y (en) | 2003-07-03 | 2003-07-03 | Plastic helical bellow |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2627321Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103832006A (en) * | 2014-03-04 | 2014-06-04 | 昆山盛夏复合材料科技有限公司 | Carbon fiber tube |
| CN105984158A (en) * | 2015-02-04 | 2016-10-05 | 四川金石东方新材料设备股份有限公司 | Forming method and device for spiral corrugated pipe |
| CN114787548A (en) * | 2019-12-11 | 2022-07-22 | 株式会社Posco | Spiral tube |
-
2003
- 2003-07-03 CN CN 03249333 patent/CN2627321Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103832006A (en) * | 2014-03-04 | 2014-06-04 | 昆山盛夏复合材料科技有限公司 | Carbon fiber tube |
| CN105984158A (en) * | 2015-02-04 | 2016-10-05 | 四川金石东方新材料设备股份有限公司 | Forming method and device for spiral corrugated pipe |
| CN105984158B (en) * | 2015-02-04 | 2018-12-11 | 四川金石东方新材料设备股份有限公司 | The forming method and molding machine of helical bellows |
| CN114787548A (en) * | 2019-12-11 | 2022-07-22 | 株式会社Posco | Spiral tube |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SICHUAN GOLDSTONE ORIENT NEW MATERIAL EQUIPMENT CO Free format text: FORMER OWNER: KUAI YIXI Effective date: 20110630 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 610072 ROOM 418, CHUANLU BUILDING, NO. 79, CAOTANG NORTH BRANCH ROAD, CHENGDU CITY, SICHUAN PROVINCE TO: 610200 WANJIA COMMUNITY, JIUJIANG TOWN, SHUANGLIU COUNTY, CHENGDU CITY, SICHUAN PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20110630 Address after: 610200 Sichuan Chengdu Shuangliu County Jiujiang town ten thousand communities Patentee after: Sichuan Jinshi Dongfang new material equipment Co., Ltd. Address before: Chengdu City, Sichuan Province, North Branch 610072 Cottage Road No. 79 building room 418 Patentee before: Kuai Yixi |
|
| C56 | Change in the name or address of the patentee |
Owner name: SICHUAN GOLDSTONE ORIENT NEW METERIAL EQUIPMENT SH Free format text: FORMER NAME: SICHUAN GOLDSTONE ORIENT NEW METERIAL EQUIPMENT CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 610200 Sichuan Chengdu Shuangliu County Jiujiang town ten thousand communities Patentee after: SICHUAN GOLDSTONE ORIENT NEW MATERIAL EQUIPMENT CO., LTD. Address before: 610200 Sichuan Chengdu Shuangliu County Jiujiang town ten thousand communities Patentee before: Sichuan Jinshi Dongfang new material equipment Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20130703 Granted publication date: 20040721 |