CN204004827U - Screw type corrugated tubing - Google Patents
Screw type corrugated tubing Download PDFInfo
- Publication number
- CN204004827U CN204004827U CN201420072032.8U CN201420072032U CN204004827U CN 204004827 U CN204004827 U CN 204004827U CN 201420072032 U CN201420072032 U CN 201420072032U CN 204004827 U CN204004827 U CN 204004827U
- Authority
- CN
- China
- Prior art keywords
- screw type
- tubing
- type corrugated
- protruding
- font
- 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
Links
- 238000003466 welding Methods 0.000 claims abstract description 26
- 239000004831 Hot glue Substances 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims description 7
- -1 polyethylene Polymers 0.000 claims description 6
- 238000004804 winding Methods 0.000 claims description 6
- 239000004698 Polyethylene Substances 0.000 claims description 5
- 239000004743 Polypropylene Substances 0.000 claims description 5
- 229920000573 polyethylene Polymers 0.000 claims description 5
- 229920001155 polypropylene Polymers 0.000 claims description 5
- 238000010276 construction Methods 0.000 abstract description 5
- 230000035939 shock Effects 0.000 abstract description 2
- 229910000831 Steel Inorganic materials 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 9
- 239000010959 steel Substances 0.000 description 9
- 239000002131 composite material Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 229920001903 high density polyethylene Polymers 0.000 description 3
- 239000004700 high-density polyethylene Substances 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
Abstract
The utility model discloses a kind of screw type corrugated tubing, its structural feature is that the section bar that is " protruding " font by a cross-sectional shape is entwined in a spiral manner, between the section bar of " protruding " font, use hot melt adhesive to be welding together, described " protruding " font section bar is divided into three rectangle frames, each rectangle frame inside is hollow structure, high rectangle frame in the middle of being respectively and the short rectangle frame of both sides symmetry, middle high rectangle frame forms the crest of tubing, and the short rectangle frame on both sides forms the trough of tubing.The advantage such as the screw type corrugated tubing of the utility model has that ring stiffness is high, shock resistance good, good economy performance, construction are convenient.
Description
Technical field
The utility model relates to a kind of industrial tubing, relates in particular to a kind of screw type corrugated tubing.
Background technique
The tubing in the fields such as draining blowdown is at present generally steel and moulds composite helical bellows and the hot structural walls entwining tube of HDPE (carat pipe), wherein steel is moulded composite helical bellows and is had following shortcoming: 1, the cementability of steel and plastics is poor, in course of working, there is great internal stress in steel band, cause tubing after outdoor placement certain hour, because of the impact of factors such as expanding with heat and contract with cold, steel is moulded and is occurred serious segregation phenomenon, thereby cause tubing after buried, its ring stiffness degradation, causes engineering accident; 2, because the corrosion resistance of steel band is poor, in production and work progress, easily cause steel band corrosion, cause engineering accident thereby destroy tubing; 3, because its production is spiral winding technique, therefore the welded seam of tubing is longer, has weak spot, is prone to welded seam poor attachment phenomenon; 4, impact property is poor, and steel-plastic composite pipe is in the time being subject to external impacts, and steel is moulded and is prone to layering; 5, trough place ring stiffness is low, and because its trough place is real wall construction, overall wall thickness is thinner, therefore ring stiffness is lower, is generally 8kN/m
2below; 6, tubing construction is more loaded down with trivial details, and because of steel band helix structure, tube end face cannot be accomplished smooth, and therefore trouble of docking is installed.
There is following shortcoming in the hot structural walls entwining tube of HDPE (carat pipe): 1, the hot structural walls entwining tube of HDPE (carat pipe) crest height is lower, particularly trough place is real wall construction, and wall thickness is thinner, and crushing resistance is poor, therefore integral loop rigidity is lower, is generally no more than 8 kN/m
2; 2, cost is higher, because of structural imperfection, therefore it reaches identical ring stiffness, need to consume more raw material; 3, speed of production is slower, and because its production process adopts air cooling way, speed is extremely low, is generally 0.1m/min, causes thus cost of production higher.
Summary of the invention
The purpose of this utility model is the technical problem existing in order to solve prior art, provides that a kind of ring stiffness is high, erosion-resisting characteristics good, good economy performance, screw type corrugated tubing that construction convenience is good.
The purpose of this utility model is achieved in that described screw type corrugated tubing, the section bar that is " protruding " font by a cross-sectional shape is entwined in a spiral manner, between the section bar of " protruding " font, use hot melt adhesive to be welding together, described " protruding " font section bar is divided into three rectangle frames, each rectangle frame inside is hollow structure, high rectangle frame in the middle of being respectively and the short rectangle frame of both sides symmetry, middle high rectangle frame forms the crest of tubing, and the short rectangle frame on both sides forms the trough of tubing.
The bottom of the screw type corrugated tubing that the section bar that described cross-sectional shape is " protruding " font forms by continuous winding is inwall, and inwall is planomural shape; Crest and trough are the outer wall of tubing, and the outer wall of tubing is corrugated.
The crest of described outer wall ripple and the thickness of trough are 1～20mm.
The thickness of described inwall is 1-20mm.
The crest height of described outer wall ripple is that 30-400mm, width are 10～200mm, and the trough height of outer wall ripple is that 15-200mm, width are 10-200mm.
Between the section bar that described adjacent cross-sectional shape is " protruding " font, by after hot melt adhesive welding, the welding layer thickness that its hot melt adhesive welding forms is 2-10mm.
Described cross-sectional shape for the section bar of " protruding " font and welding layer are, make by modified polypropene or modified polyethylene material.
The arc radius of each corner of three rectangle frames of the section bar that described cross-sectional shape is " protruding " font is 5-50mm.
The production method of above-mentioned screw type corrugated tubing, the steps include:
Step 1, extrude cross-sectional shape for the section bar of " protruding " font with A extruder;
Step 2, cross-sectional shape is wrapped on the running roller of a specific standard (diameter of running roller is consistent with pipe internal diameter specification) for the section bar of " protruding " font, then extrudes vertical bar shape hot melt adhesive with B extruder, make the mutual welding of each " protruding " font section bar;
Step 3, extrude transverse sheet shape hot melt adhesive with C extruder again, to guarantee that two adjacent " protruding " font section bars form "T"-shaped welding mutually, ensure welding effect, form screw type corrugated tubing finally by cooling and shaping.
The screw type corrugated tubing of the utility model has the following advantages: because crest and trough are hollow structure, thereby in the case of using the material of identical weight, can greatly improve the moment of inertia of tubing, therefore improve the ring stiffness of tubing, make its ring stiffness can reach 16 kN/m
2above, particularly trough place ring stiffness is greatly improved; Because structure is good, more than tubing bore specification can maximum be accomplished 3000mm; Tubing is overall plastic material, and therefore corrosion resistance is good, and because adopting modified poly ethylene or modified polypropylene material, the shock resistance of tubing is good simultaneously, can meet cryogenic conditions and use; Tubing speed of production is very fast, and more than can reaching 0.25m/min, cost of production is lower; In addition, tubing Placement is various, and installation is very convenient, good airproof performance.
Brief description of the drawings
Fig. 1 is that the master of the screw type corrugated tubing of the utility model cuts open structural representation.
Fig. 1-1st, the A part enlarged view in Fig. 1.
Fig. 1-2 is welding layer enlarged view in Fig. 1.
Fig. 2 is the perspective view of the screw type corrugated tubing of the utility model.
Embodiment
Below in conjunction with specific embodiment, the utility model is described in detail.
Refer to shown in Fig. 1 and Fig. 1-1, it is Novel spiral type corrugated pipe described in the utility model, comprise section bar, its structural feature is the section bar that its cross-sectional shape of described section bar is " protruding " font, the section bar that is " protruding " font by a cross-sectional shape in a spiral manner continuous winding forms (as shown in Figure 2), between the section bar of adjacent " protruding " font, use hot melt adhesive to be welding together, described " protruding " font section bar is divided into three rectangle frames, each rectangle frame inside is hollow structure, high rectangle frame in the middle of being respectively and the short rectangle frame of both sides symmetry, middle high rectangle frame forms the crest of tubing, the short rectangle frame on both sides forms the trough of tubing, the bottom of the screw type corrugated tubing that the section bar continuous winding that described cross-sectional shape is " protruding " font forms is inwall 1, and inwall is planomural shape, and inwall is smooth smooth, crest and trough are the outer wall 2 of screw type corrugated tubing, and outer wall is bellows-shaped.Between the section bar that described adjacent cross-sectional shape is " protruding " font, by after hot melt adhesive welding, the thickness D1 of the welding layer 3 that its hot melt adhesive welding forms is 2-10mm.
The crest D2 of described outer wall ripple and the thickness of trough D3 are 1～20mm, the thickness D4 of described inwall is 1-20mm, the crest height H1 of described outer wall ripple is 30-400mm, width W 1 is 10～200mm, the trough height H 2 of outer wall ripple is 15-200mm, width W 2 is 10-200mm, described welding layer thickness D1 is 2-10mm, described hollow " convex shape " ripple and welding layer is modified polypropene or modified polyethylene material is made, the arc radius R of each corner of three rectangle frames of described hollow " convex shape " ripple is 5-50mm, the section bar that tubing overall structure is " protruding " font by continuous cross-sectional shape is formed by connecting by welding layer 3 grade after continuous winding becomes screw type, the bottom of the corrugated pipe of screw type is inwall 1, thereby can greatly promote the ring stiffness of tubing, simultaneously because the specific surface area of its outer wall is larger, increase the area of contact with soil, be conducive to form pipe-native acting in conjunction, thereby improve the compression resistance of tubing.
The thickness of described inwall is 1-20mm, and cross-sectional shape is modified polypropene or modified polyethylene material (technology that can realize for general technology) for the section bar of " protruding " font and welding layer, and its structure is smooth, is conducive to improve the flow efficiency of fluid.
The production method of screw type corrugated tubing described in the utility model is: first extrude " protruding " font section bar with A extruder, again " protruding " font section bar is wrapped on the running roller of a specific standard (diameter of running roller is consistent with pipe internal diameter specification), then extrude vertical bar shape hot melt adhesive with B extruder, make the mutual welding of each " protruding " font section bar; Finally extrude transverse sheet shape hot melt adhesive with C extruder, to guarantee that two adjacent " protruding " font section bars form "T"-shaped welding mutually, ensure welding effect, form screw type corrugated tubing finally by cooling and shaping.
Claims (8)
1. a screw type corrugated tubing, it is characterized in that: the section bar that is " protruding " font by a cross-sectional shape is entwined in a spiral manner, between the section bar of " protruding " font, use hot melt adhesive to be welding together, described " protruding " font section bar is divided into three rectangle frames, each rectangle frame inside is hollow structure, high rectangle frame in the middle of being respectively and the short rectangle frame of both sides symmetry, middle high rectangle frame forms the crest of tubing, and the short rectangle frame on both sides forms the trough of tubing.
2. screw type corrugated tubing according to claim 1, is characterized in that: the bottom of the screw type corrugated tubing that the section bar that described cross-sectional shape is " protruding " font forms by continuous winding is inwall, and inwall is planomural shape; Crest and trough are the outer wall of tubing, and the outer wall of tubing is corrugated.
3. screw type corrugated tubing according to claim 2, is characterized in that: the crest of described outer wall ripple and the thickness of trough are 1～20mm.
4. screw type corrugated tubing according to claim 2, is characterized in that: the thickness of described inwall is 1-20mm.
5. screw type corrugated tubing according to claim 2, is characterized in that: the crest height of described outer wall ripple is that 30-400mm, width are 10～200mm, and the trough height of outer wall ripple is that 15-200mm, width are 10-200mm.
6. screw type corrugated tubing according to claim 1 and 2, is characterized in that: between described adjacent hollow " convex shape " ripple, by after hot melt adhesive welding, the welding layer thickness that its hot melt adhesive welding forms is 2-10mm.
7. screw type corrugated tubing according to claim 6, is characterized in that: described hollow " convex shape " ripple and welding layer are that modified polypropene or modified polyethylene material make.
8. according to the screw type corrugated tubing described in claim 1 or 2 or 3, it is characterized in that: the arc radius of each corner of three rectangle frames of described hollow " convex shape " ripple is 5-50mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420072032.8U CN204004827U (en) | 2014-02-20 | 2014-02-20 | Screw type corrugated tubing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420072032.8U CN204004827U (en) | 2014-02-20 | 2014-02-20 | Screw type corrugated tubing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204004827U true CN204004827U (en) | 2014-12-10 |
Family
ID=52044830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420072032.8U Expired - Lifetime CN204004827U (en) | 2014-02-20 | 2014-02-20 | Screw type corrugated tubing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204004827U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104676142A (en) * | 2015-02-03 | 2015-06-03 | 戴爱清 | Pipeline with inner rib winding structure wall reinforced by polypropylene framework and manufacturing method of pipeline |
| CN108591631A (en) * | 2018-07-04 | 2018-09-28 | 上海瑞皇管业科技有限公司 | FRPE enhances composite structure wall pipe |
| CN109787181A (en) * | 2019-01-10 | 2019-05-21 | 福建和盛塑业有限公司 | A kind of electric power and communications cable pipe gallery pipeline comb method |
-
2014
- 2014-02-20 CN CN201420072032.8U patent/CN204004827U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104676142A (en) * | 2015-02-03 | 2015-06-03 | 戴爱清 | Pipeline with inner rib winding structure wall reinforced by polypropylene framework and manufacturing method of pipeline |
| CN108591631A (en) * | 2018-07-04 | 2018-09-28 | 上海瑞皇管业科技有限公司 | FRPE enhances composite structure wall pipe |
| CN109787181A (en) * | 2019-01-10 | 2019-05-21 | 福建和盛塑业有限公司 | A kind of electric power and communications cable pipe gallery pipeline comb method |
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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: 20141210 |