CN111306371A - High-strength spiral corrugated pipe - Google Patents
High-strength spiral corrugated pipe Download PDFInfo
- Publication number
- CN111306371A CN111306371A CN202010221209.6A CN202010221209A CN111306371A CN 111306371 A CN111306371 A CN 111306371A CN 202010221209 A CN202010221209 A CN 202010221209A CN 111306371 A CN111306371 A CN 111306371A
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- China
- Prior art keywords
- rib
- stud
- corrugated pipe
- pipe
- helical bellows
- 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.)
- Pending
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- 239000004033 plastic Substances 0.000 claims abstract description 31
- 229920003023 plastic Polymers 0.000 claims abstract description 31
- 238000001125 extrusion Methods 0.000 claims abstract description 22
- 239000000463 material Substances 0.000 claims abstract description 9
- 238000004804 winding Methods 0.000 claims description 9
- 238000013329 compounding Methods 0.000 claims description 6
- 210000003205 muscle Anatomy 0.000 claims description 5
- 239000002131 composite material Substances 0.000 claims description 4
- 238000000465 moulding Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 11
- 241001391944 Commicarpus scandens Species 0.000 abstract description 3
- 230000003014 reinforcing effect Effects 0.000 description 11
- 150000001875 compounds Chemical class 0.000 description 4
- 238000005728 strengthening Methods 0.000 description 4
- 239000007787 solid Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229920000114 Corrugated plastic Polymers 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D23/00—Producing tubular articles
- B29D23/001—Pipes; Pipe joints
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L57/00—Protection of pipes or objects of similar shape against external or internal damage or wear
- F16L57/02—Protection of pipes or objects of similar shape against external or internal damage or wear against cracking or buckling
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The invention relates to a high-rib spiral corrugated pipe which comprises a pipe bottom belt and a plastic section, wherein the plastic section is spirally wound on the outer side of the pipe bottom belt to form an outer corrugated shape, the plastic section comprises a hollow body and a vertical rib, the body is formed by enclosing a bottom edge and two side edges, the vertical rib is positioned in the body and divides a cavity in the body into two parts, and the tops of the two side edges of the body are connected with the side walls of the vertical rib. The corrugated pipe extrusion device can reduce materials required in pipe manufacturing, reduce the meter weight of the whole corrugated pipe, greatly improve the extrusion production speed, ensure the ring stiffness of the corrugated pipe, and improve the tensile strength of the corrugated pipe, so that the whole corrugated pipe is not easy to break.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to a plastic reinforced helical bellows, which is an underground pipe and is widely applied to the laying of various drainage pipelines.
[ background of the invention ]
In recent years, with the great demand for municipal pipes, many plastic pipes, such as PVC pipes, straight water pipes, steel strip reinforced winding structure wall pipes, helical bellows with hollow ribs, and the like, have appeared.
The Chinese patent No. ZL 201610584263.0, which is named as a plastic reinforced winding corrugated pipe, discloses a plastic reinforced winding corrugated pipe, which comprises a pipe bottom belt and a plastic section, wherein the plastic section is spirally wound on the outer side of the pipe bottom belt to form an outer corrugated shape, the plastic section comprises a hollow body and a vertical rib, the body is an isosceles triangle or isosceles trapezoid, the vertical rib is positioned in the body and divides a cavity inside the body into two parts, and the top of the body is arc-shaped; the vertical ribs are provided with longitudinal through holes.
The plastic reinforced winding corrugated pipe is developed and used in the early stage of the company, and the following defects are found: the vertical ribs are completely covered in the plastic section bar body, acting force borne by the corrugated pipe during use mainly acts on the tops of the vertical ribs, namely the ring stiffness of the corrugated pipe is mainly provided by the vertical ribs. Therefore, the body of the plastic profile has a larger overall cross section, so that the material required for manufacturing the pipe is increased inevitably, and the meter weight of the whole corrugated pipe is increased.
Chinese patent No. ZL 201010218818.2, the name is outer ripple type plastics winding arrangement wall tubular product of inner rib reinforcing and manufacturing approach thereof, disclose an inner rib reinforcing outer ripple type plastics winding arrangement wall tubular product, including face of cylinder tubular product body and spiral ring around the strengthening rib in the body outside, the strengthening rib contains the reinforcing inner rib of a perpendicular to pipe wall, this inner rib divides into two cavity chambeies that are side by side with the strengthening rib, the reinforcing inner rib of strengthening rib is formed by two sides and the melten gel fusion of the protruding cavity chamber of tubulose that adjacent heterotypic strip is close to each other. The upper part of the reinforcing rib and the top of the inner rib can be provided with a solid bulge.
The internal rib reinforced external corrugated plastic winding structure wall pipe has the following defects:
1. the welding surface is a circumferential whole tangent plane, so that the ring stiffness of the structural wall pipe is reduced, and once the process is improperly controlled, the tensile strength of the pipe is not enough and the pipe is easy to break, and the corrugation is in a spring shape.
2. The reinforcing inner rib is formed by fusing the melt adhesive, so that the width of the reinforcing inner rib cannot be uniform, namely the ring stiffness of the whole structural wall pipe cannot be ensured, and the meter weight of the pipe is increased.
3. Although it is disclosed that the top of the reinforcing inner rib may have a solid protrusion, the solid protrusion is formed by sol, and the reinforcing inner rib formed by sol must be under a large external pressing force to form a compact structure inside the reinforcing inner rib, so as to form a supporting force. The mode that uses the pinch roller to roll disclosed in this patent not only hardly guarantees that the extrusion volume of sol reaches unanimity, and the extrusion force also hardly controls in addition, so hardly guarantees to reach the required technical index of reinforcing inner rib for whole tubular product can not reach required ring rigidity.
[ summary of the invention ]
In order to solve the above problems, an object of the present invention is to provide a high-strength helical bellows which can ensure the ring stiffness, reduce the required material, reduce the meter weight, increase the tensile strength, and be not easily broken.
In order to achieve the purpose, the invention adopts the technical scheme that: the utility model provides a high muscle helical bellows, includes at the bottom of the tubular product area and plastic material, plastic material spiral winding forms outer ripple shape in the outside at the bottom of the tubular product area, plastic material includes hollow body and founds the muscle, the body is enclosed by a base and two sides and closes and form, found the muscle to be located the body to divide into two with the inside cavity of body, the top of two sides of body with found the lateral wall of muscle is connected.
The high-rib spiral corrugated pipe is further provided with: the vertical ribs are provided with longitudinal through holes.
The high-rib spiral corrugated pipe is further provided with: the longitudinal through holes are positioned in the studs inside the body.
The high-rib spiral corrugated pipe is further provided with: the body and the vertical bars are formed by co-extrusion and composite molding.
The high-rib spiral corrugated pipe is further provided with: when the body and the stud are compounded in a co-extrusion mode, a co-extrusion compounding point is arranged between the bottom edge of the body and the bottom of the stud, and a co-extrusion compounding point is arranged between the tops of the two side edges of the body and the side wall of the stud.
The high-rib spiral corrugated pipe is further provided with: the height from the connecting point between the top of the two side edges of the body and the side wall of the stud to the bottom of the stud is not less than 75% of the height of the whole stud.
The high-rib spiral corrugated pipe is further provided with: the cross section of the stud is in a strip shape, and can also be in a trapezoid shape with a wide lower part and a narrow upper part.
The high-rib spiral corrugated pipe is further provided with: the two side edges of the body are arc-shaped edges and can also be straight edges.
Compared with the prior art, the invention has the following beneficial effects:
1. the vertical ribs are firstly formed, so that the height and the width of the vertical ribs can be determined according to the ring stiffness required by the corrugated pipe, the crossed reinforced inner ribs formed by sol, the size of the vertical ribs, the internal structure and other technical indexes are better controlled, the ring stiffness of the corrugated pipe is ensured, the vertical ribs and the body are co-extruded and formed in a composite mode, heat dissipation is facilitated, and the extrusion production speed can be greatly increased.
2. The plastic section bar body does not follow the height of the stud and completely covers the stud inside the plastic section bar body, the two side edges of the body play a role in obliquely supporting the stud and are used for bearing smaller transverse pressure from a soil layer, so that the whole cross section of the plastic section bar body is smaller, required materials are relatively reduced during pipe manufacturing, and the meter weight of the whole corrugated pipe is reduced.
3. The vertical through holes are formed in the vertical ribs and are located in the vertical ribs inside the body, so that not only is the ring rigidity guaranteed, but also the meter weight of the corrugated pipe is reduced, and the linear speed in production is improved.
4. The corrugated pipe does not have a circumferential welding surface, so that the tensile strength of the corrugated pipe is improved, and the whole corrugated pipe is not easy to break.
[ description of the drawings ]
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is an enlarged schematic view of a portion a in fig. 1.
FIG. 3 is a schematic view of the body of FIG. 2 with two arcuate edges.
Fig. 4 is a schematic structural view of the stud of fig. 2 in a trapezoidal shape with a wide bottom and a narrow top.
In the figure: 1. the pipe bottom belt comprises a pipe bottom belt body 2, a pipe bottom belt body 21, a pipe bottom side 22, a pipe side 3, a vertical rib 4, a co-extrusion compounding point 5, a through hole a, and a height from a connecting point between the tops of the two side edges of the pipe bottom belt body and the side wall of the vertical rib to the bottom of the vertical rib.
[ detailed description ] embodiments
The present invention will be described in further detail with reference to specific embodiments.
As shown in fig. 1 and 2, a high-rib helical bellows comprises a tube bottom belt 1 and a plastic section, wherein the plastic section is spirally wound on the outer side of the tube bottom belt 1 to form an external corrugated shape, the plastic section comprises a hollow body 2 and a stud 3, the cross section of the stud 3 is a long strip shape, as shown in fig. 4, the cross section of the stud 3 can also be a trapezoid with a wide lower part and a narrow upper part, wherein the trapezoidal structure stud 3 with the wide lower part and the narrow upper part has higher supporting force, and the stud 3 can also be in other special-shaped structures, which belong to the protection scope of the present invention. The body 2 is enclosed by a bottom edge 21 and two side edges 22, the two side edges 22 of the body 2 are arc-shaped edges, as shown in fig. 3, the two side edges 22 of the body 2 can also be straight edges, and the two side edges 22 of the body 2 can also be bent structures and other different shapes, which belong to the protection scope of the present invention. The stud 3 is located in the body 2 and divides the cavity inside the body 2 into two parts, and the tops of the two side edges 22 of the body 2 are connected with the side walls of the stud 3.
Preferably, the body 2 and the studs 3 are formed by co-extrusion and composite molding. When the body 2 and the stud 3 are combined in a co-extrusion mode, the co-extrusion compound points 4 are arranged between the bottom edge 21 of the body 2 and the bottom of the stud 3, the co-extrusion compound points 4 are arranged between the tops of the two side edges 22 of the body 2 and the side walls of the stud 3, and a common groove type structure can be arranged to increase firmness during co-extrusion compounding.
Preferably, the stud 3 is provided with a longitudinal through hole 5. Preferably, said longitudinal through holes 5 are located in the studs 3 inside the body 2. Thereby not only ensuring the supporting force of the vertical bars 3, but also reducing the meter weight of the corrugated pipe and improving the linear speed in production. The hole type, number and arrangement of the through holes 5 are not specifically limited in this embodiment, and all fall within the scope of the present invention.
Preferably, the height a from the connecting point between the top of the two sides 22 of the body 2 and the side wall of the stud 3 to the bottom of the stud 3 is not less than 75% of the height of the whole stud 3. Thereby ensuring that the two side edges 22 of the body 2 can provide enough supporting force for the stud 3 and preventing the stud 3 positioned outside the body 2 from collapsing under the action of strong force.
The preparation method of the high-rib spiral corrugated pipe comprises the following steps: during manufacturing, the studs 3 are firstly molded, so that the width of the studs 3 can be determined according to the ring stiffness required by the corrugated pipe, the ring stiffness of the corrugated pipe is ensured, the studs 3 and the body 2 are co-extruded and compounded to form a plastic profile, the body 2 and the studs 3 are co-extruded and compounded, co-extrusion compound points 4 are arranged between the bottom edge 21 of the body 2 and the bottom of the studs 3, and co-extrusion compound points 4 are arranged between the tops of the two side edges 22 of the body 2 and the side walls of the studs 3, so that heat dissipation is facilitated, and the extrusion production speed can be greatly increased. After the plastic section is manufactured, the strip-shaped base band is wound and welded to form the bottom tube band 1, meanwhile, the middle part of the bottom of the plastic section and the joint of the base band are fused, wound and compounded in a thermal state, the plastic section forms an outer corrugated shape on the outer side of the bottom tube band 1, and a socket and a spigot are welded at two ends of the bottom tube band 1 respectively, so that the corrugated tube is formed.
The above-mentioned embodiments are merely illustrative of the principles and effects of the present invention, and some embodiments may be used, not restrictive; it should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the inventive concept of the present invention, and these changes and modifications belong to the protection scope of the present invention.
Claims (8)
1. The utility model provides a high muscle helical bellows, includes area and plastic material at the bottom of the tubular product, and plastic material spiral winding forms outer ripple shape, its characterized in that at the outside of area at the bottom of the tubular product: the plastic section bar comprises a hollow body and a vertical rib, wherein the body is formed by enclosing a bottom edge and two side edges, the vertical rib is positioned in the body and divides a cavity in the body into two parts, and the tops of the two side edges of the body are connected with the side walls of the vertical rib.
2. A high-rib helical bellows as claimed in claim 1, wherein: the vertical ribs are provided with longitudinal through holes.
3. A high-rib helical bellows as claimed in claim 2, wherein: the longitudinal through holes are positioned in the studs inside the body.
4. A high-rib helical bellows as claimed in claim 1, wherein: the body and the vertical bars are formed by co-extrusion and composite molding.
5. A high-rib helical bellows as claimed in claim 4, wherein: when the body and the stud are compounded in a co-extrusion mode, a co-extrusion compounding point is arranged between the bottom edge of the body and the bottom of the stud, and a co-extrusion compounding point is arranged between the tops of the two side edges of the body and the side wall of the stud.
6. A high-rib helical bellows as claimed in claim 1, wherein: the height from the connecting point between the top of the two side edges of the body and the side wall of the stud to the bottom of the stud is not less than 75% of the height of the whole stud.
7. A high-rib helical bellows as claimed in claim 1, wherein: the cross section of the stud is in a strip shape, and can also be in a trapezoid shape with a wide lower part and a narrow upper part.
8. A high-rib helical bellows as claimed in claim 1, wherein: the two side edges of the body are arc-shaped edges and can also be straight edges.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010221209.6A CN111306371A (en) | 2020-03-26 | 2020-03-26 | High-strength spiral corrugated pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010221209.6A CN111306371A (en) | 2020-03-26 | 2020-03-26 | High-strength spiral corrugated pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111306371A true CN111306371A (en) | 2020-06-19 |
Family
ID=71145969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010221209.6A Pending CN111306371A (en) | 2020-03-26 | 2020-03-26 | High-strength spiral corrugated pipe |
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| Country | Link |
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| CN (1) | CN111306371A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202992423U (en) * | 2012-12-26 | 2013-06-12 | 伦慧东 | Flame retardant antistatic thin wall steel plastic composite tube with reinforcing spiral bar |
| CN204785148U (en) * | 2015-07-15 | 2015-11-18 | 江阴市康乐塑胶有限公司 | Outer muscle reinforcing bellows of internal -rib |
| CN107498890A (en) * | 2017-07-28 | 2017-12-22 | 福建佑通科技有限公司 | Reinforcement winding bellows and preparation method thereof |
| CN110630828A (en) * | 2019-10-10 | 2019-12-31 | 张家港戴恩机械有限公司 | Hollow wall porous ribbed winding corrugated pipe |
| CN211875311U (en) * | 2020-03-26 | 2020-11-06 | 张家港戴恩机械有限公司 | High-strength spiral corrugated pipe |
-
2020
- 2020-03-26 CN CN202010221209.6A patent/CN111306371A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202992423U (en) * | 2012-12-26 | 2013-06-12 | 伦慧东 | Flame retardant antistatic thin wall steel plastic composite tube with reinforcing spiral bar |
| CN204785148U (en) * | 2015-07-15 | 2015-11-18 | 江阴市康乐塑胶有限公司 | Outer muscle reinforcing bellows of internal -rib |
| CN107498890A (en) * | 2017-07-28 | 2017-12-22 | 福建佑通科技有限公司 | Reinforcement winding bellows and preparation method thereof |
| CN110630828A (en) * | 2019-10-10 | 2019-12-31 | 张家港戴恩机械有限公司 | Hollow wall porous ribbed winding corrugated pipe |
| CN211875311U (en) * | 2020-03-26 | 2020-11-06 | 张家港戴恩机械有限公司 | High-strength spiral corrugated pipe |
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