CN210034664U - Large-diameter steel reinforced plastic pipe and flange - Google Patents
Large-diameter steel reinforced plastic pipe and flange Download PDFInfo
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- CN210034664U CN210034664U CN201920680110.5U CN201920680110U CN210034664U CN 210034664 U CN210034664 U CN 210034664U CN 201920680110 U CN201920680110 U CN 201920680110U CN 210034664 U CN210034664 U CN 210034664U
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Abstract
The utility model relates to a large-diameter steel reinforced plastic pipe and a flange, the steel reinforced plastic pipe comprises a plastic inner pipe and a steel pipe, the outer diameter of the plastic inner pipe is matched with the inner diameter of the steel pipe, the plastic inner pipe comprises a plurality of pipe pieces, each pipe piece is provided with at least one countersunk hole, each countersunk hole corresponds to one hole, all the holes are positioned on the inner wall of the steel pipe, each countersunk hole is connected with the corresponding hole through a bolt, the countersunk hole countersunk head corresponding to each bolt head is connected with a plastic cover plate, and two adjacent pipe pieces are welded by hot melting; wherein, every section of jurisdiction is the straight plate, through the bolt crimping that corresponds in the steel pipe inner wall, the restraint is the bent plate. The large-caliber steel reinforced plastic pipe has the advantages that the plastic inner pipe and the steel pipe are effectively connected into a whole through the bolt, steel and plastic separation is avoided, the corrosion resistance of the plastic inner pipe and the pressure resistance of the steel pipe are fully kept, the bolt head is sealed through the plastic cover plate, the inner wall of the plastic inner pipe is kept consistent, the steel reinforced plastic pipe is simple in structure, convenient to manufacture and good in effect.
Description
Technical Field
The utility model relates to the field of pipelines, especially a heavy-calibre steel reinforcing plastic tubing and flange.
Background
The manufacture of large-diameter (diameter is larger than 2m) plastic pressure pipes is always a difficult problem in the industry, for example, if the large-diameter plastic pressure pipes are produced by adopting an extrusion molding method, production equipment is expensive, and meanwhile, the pressure pipe wall thickness is easy to generate and cannot meet the requirements, eccentricity is poor, air bubbles exist and the like, so that the problems that the quality is not met with the requirements, the yield is low and the like are caused, and therefore, the industry provides a way for producing the large-diameter plastic pressure pipes in a segment assembling mode (similar to the way that supporting segments of tunnels are combined into circular tunnels in shield subway construction).
However, the plastic pressure tube sheet has large size, large thickness and large production difficulty, such as difficult cooling, large deformation after cooling and the like, so that the process for manufacturing the large-caliber plastic pressure tube by adopting the assembly method is complex, the required equipment is more and expensive, the production cost is high, and the efficiency is low, so that the problems need to be solved.
SUMMERY OF THE UTILITY MODEL
The invention of the utility model aims to: aiming at the problems of complex process, more and expensive required equipment, high production cost and low efficiency of manufacturing the large-caliber plastic pressure pipe by adopting an assembly method in the prior art, the large-caliber steel reinforced plastic pipe and the flange are provided.
In order to realize the purpose, the utility model discloses a technical scheme be:
a large-diameter steel reinforced plastic pipe comprises a plastic inner pipe and a steel pipe, wherein the outer diameter of the plastic inner pipe is matched with the inner diameter of the steel pipe, the plastic inner pipe comprises a plurality of pipe pieces, all the pipe pieces can be sequentially spliced to form the plastic inner pipe, each pipe piece is provided with at least one countersunk hole, each countersunk hole corresponds to one hole, all the holes are arranged on the inner wall of the steel pipe, each countersunk hole is connected with the corresponding hole through a bolt, a plastic cover plate is connected to the countersunk head corresponding to each bolt head, and two adjacent pipe pieces are subjected to hot melting welding;
each duct piece is a straight plate, and is in press-connection with the inner wall of the steel pipe through the corresponding bolt, so that the duct pieces are restrained to form a bent plate.
Adopt a heavy-calibre steel reinforced plastic pipe, the section of jurisdiction of straight board and the steel pipe of heavy-calibre all possess ripe production line, easily make, with low costs, with section of jurisdiction and the effectual integrative of connecting into one through the bolt, avoid steel to mould the separation, the plastics inner tube that becomes an organic whole is connected to all sections of jurisdiction, fully keeps the corrosion-resistant and withstand voltage characteristic of steel pipe in the plastics inner tube, through the sealed bolt head of plastics apron, makes the plastics inner tube wall keep unanimous, this steel reinforced plastic pipe simple structure, it is convenient to make, respond well.
Preferably, the bolt is a plastic bolt.
Preferably, the outer wall of the steel pipe is connected with a protection pipe to protect the outer wall of the steel pipe from corrosion.
Preferably, the protection tube is a plastic outer tube, and the inner wall of the plastic outer tube is bonded to the outer wall of the steel tube.
Preferably, two adjacent counter bores are staggered.
Preferably, the plastic inner pipe is welded with all the plastic cover plates in a hot melting mode.
Preferably, the outer wall of the plastic inner pipe is bonded to the inner wall of the steel pipe.
Preferably, the steel pipe comprises an inner steel pipe and an outer steel pipe, and a plurality of steel stiffening ribs are connected between the inner steel pipe and the outer steel pipe.
By adopting the structure, the weight of the steel pipe can be reduced while the pressure bearing capacity of the steel pipe is kept.
Preferably, the plastic inner pipe and the plastic outer pipe are both PE plastic pipes.
The utility model also provides a heavy-calibre steel reinforcing plastic tubing, including plastics inner tube and steel pipe, the external diameter adaptation of plastics inner tube the internal diameter of steel pipe, be connected with at least one deck steel mesh on the steel pipe inner wall, all the steel mesh inlay in the plastics inner tube.
Adopt a heavy-calibre steel reinforcing plastic tubing, through connect the steel mesh on the steel pipe inner wall, and utilize the steel pipe inner wall as the exterior sheathing, set up the mandrel in the steel pipe, hot melt injection moulding plastics inner tube between exterior sheathing and the mandrel, the parcel steel mesh completely of moulding plastics, perhaps coat in the plastics fuse-element on the steel mesh, with the pinch roller compaction, thereby it is intraductal to make steel mesh embedding fashioned plastics inner tube, make the steel pipe firmly connect plastics inner tube, avoid steel to mould the separation, fully keep the corrosion-resistant and steel pipe withstand voltage's characteristic of plastics inner tube, this steel reinforcing plastic tubing simple structure, and convenient manufacture, excellent in effect.
Preferably, the steel pipe comprises an inner steel pipe and an outer steel pipe, a plurality of steel stiffening ribs are connected between the inner steel pipe and the outer steel pipe, at least one layer of steel mesh is connected to the inner wall of the inner steel pipe, and all the steel meshes are embedded in the plastic inner pipe.
By adopting the structure, the weight of the steel pipe can be reduced while the pressure bearing capacity of the steel pipe is kept.
Preferably, the outer wall of the steel pipe is connected with a protection pipe to protect the outer wall of the steel pipe from corrosion.
Preferably, the protection tube is a plastic outer tube, the outer wall of the steel tube is connected with at least one layer of steel mesh, and all the steel meshes are embedded in the plastic outer tube.
Preferably, the inner wall of the plastic outer pipe is bonded to the outer wall of the steel pipe.
Preferably, the outer wall of the plastic inner pipe is bonded to the inner wall of the steel pipe.
Preferably, all of said steel meshes are welded to said steel tube wall.
Preferably, the plastic inner pipe and the plastic outer pipe are both PE plastic pipes.
The utility model also provides a heavy-calibre steel reinforcing plastic flange, including steel pipe and the steel flange dish of being connected rather than, the inside and outside wall of steel pipe and the surface of steel flange dish all is connected with at least one deck steel mesh, all the steel mesh inlays in the plastics in situ, be equipped with a plurality of flange hole on the steel flange dish, all the flange hole passes and corresponds the steel mesh with correspond the plastics layer.
Adopt a heavy-calibre steel reinforced plastic flange, through connect the steel mesh on the surface at steel pipe inside and outside wall and steel ring flange, in steel mesh position hot melt plastic-coated shaping plastic layer, the plastic-coated wraps up the steel mesh completely, in the fashioned plastic layer of steel mesh embedding, make steel pipe inside and outside wall and steel ring flange surface formation plastic protection layer, make full use of plastic layer corrosion-resistant and steel pipe and the withstand voltage characteristic of steel ring flange, this steel is moulded composite flange simple structure, it is convenient to make, respond well.
Preferably, all of said steel meshes are welded to said steel pipe wall and to said steel flange surface.
Preferably, the plastic layer is a PE plastic layer.
To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:
1. the large-caliber steel reinforced plastic pipe has the advantages that the pipe piece of the straight plate and the large-caliber steel pipe are both provided with mature production lines, the manufacturing is easy, the cost is low, the pipe piece and the steel pipe are effectively connected into a whole through the bolt, the steel-plastic separation is avoided, all the pipe pieces are connected into the integrated plastic inner pipe, the corrosion resistance of the plastic inner pipe and the pressure resistance of the steel pipe are fully kept, the bolt head is sealed through the plastic cover plate, the inner walls of the plastic inner pipe are kept consistent, the steel reinforced plastic pipe is simple in structure, the manufacturing is convenient, and the effect is good;
2. the large-caliber steel reinforced plastic pipe has the advantages that the steel mesh is connected onto the inner wall of the steel pipe, the inner wall of the steel pipe is used as an outer template, the core mold is arranged in the steel pipe, the plastic inner pipe is formed by hot melting and injection molding between the outer template and the core mold, the steel mesh is completely wrapped by injection molding, or a plastic melt is coated on the steel mesh and is compacted by the pressing wheel, so that the steel mesh is embedded into the formed plastic inner pipe, the steel pipe is firmly connected with the plastic inner pipe, the steel and plastic separation is avoided, the corrosion resistance and pressure resistance of the steel pipe of the plastic inner pipe are fully maintained, the steel reinforced plastic pipe is simple in;
3. application a heavy-calibre steel reinforcing plastic flange, through connect the steel mesh on the surface at steel pipe inside and outside wall and steel ring flange, in steel mesh position hot melt plastic-coated shaping plastic layer, the plastic-coated wraps up the steel mesh completely, in the fashioned plastic layer of steel mesh embedding, make steel pipe inside and outside wall and steel ring flange surface formation plastic protection layer, make full use of plastic layer corrosion-resistant and steel pipe and the withstand voltage characteristic of steel ring flange, this steel is moulded composite flange simple structure, it is convenient to make, respond well.
Drawings
Fig. 1 is a schematic structural view of a large-caliber steel reinforced plastic pipe according to the present invention;
FIG. 2 is a schematic longitudinal cross-sectional view of a large-caliber steel reinforced plastic pipe as described in example 1;
FIG. 3 is a schematic longitudinal sectional view of another large caliber steel reinforced plastic pipe as described in example 1;
FIG. 4 is a schematic longitudinal cross-sectional view of a large caliber steel reinforced plastic pipe as described in example 2;
FIG. 5 is a schematic longitudinal sectional view of another large caliber steel reinforced plastic pipe as described in example 2;
fig. 6 is a schematic structural view of the large-caliber steel reinforced plastic flange of the present invention.
The labels in the figure are: 1-plastic inner pipe, 11-countersunk hole, 12-segment, 2-steel pipe, 21-hole, 22-inner steel pipe, 23-outer steel pipe, 24-steel stiffening rib, 3-bolt, 4-plastic cover plate, 5-protection pipe, 6-steel mesh, 7-steel flange plate, 8-plastic layer, 9-flange hole.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
Example 1
As shown in figures 1-3, the utility model discloses a heavy-calibre steel reinforced plastic pipe, including plastic inner tube 1 and steel pipe 2, the external diameter adaptation of plastic inner tube 1 the internal diameter of steel pipe 2.
As shown in fig. 1, the plastic inner pipe 1 comprises a plurality of pipe pieces 12, all the pipe pieces 12 can be spliced in sequence to form the plastic inner pipe 1, and the plastic inner pipe 1 is a plastic pipe made of PE.
As shown in fig. 2, each segment 12 is provided with at least one countersunk hole 11, two adjacent countersunk holes 11 are arranged in a staggered manner, each countersunk hole 11 corresponds to one hole 21, and all the holes 21 are located on the inner wall of the steel pipe 2.
Each countersunk hole 11 is connected with the corresponding hole 21 through a bolt 3, the bolt 3 is a plastic bolt, a plastic cover plate 4 is connected to the countersunk hole 11 corresponding to the bolt 3, the plastic inner pipe 1 is welded with all the plastic cover plates 4 in a hot melting mode, and the outer wall of the plastic inner pipe 1 is bonded to the inner wall of the steel pipe 2.
Every section of jurisdiction 12 is the straight plate, through corresponding 3 crimping of bolt in 2 inner walls of steel pipe, the restraint is the bent plate, adjacent two heat fusion welding between the section of jurisdiction 12.
The outer wall of the steel pipe 2 is connected with a protection pipe 5 for protecting the outer wall of the steel pipe 2 from corrosion, the protection pipe 5 is a plastic outer pipe, the inner wall of the plastic outer pipe is bonded on the outer wall of the steel pipe 2, and the plastic outer pipe is a PE plastic pipe.
As a preferable scheme of this embodiment, as shown in fig. 3, the steel pipe 2 includes an inner steel pipe 22 and an outer steel pipe 23, and a plurality of steel stiffeners 24 are connected between the inner steel pipe 22 and the outer steel pipe 23, and with this structural arrangement, the weight of the steel pipe 2 can be reduced while the pressure-bearing capacity of the steel pipe 2 is maintained.
Application a heavy-calibre steel reinforcing plastic tubing, the section of jurisdiction 12 of straight board and the steel pipe 2 of heavy-calibre all possess ripe production line, easily make, and is with low costs, through the bolt with section of jurisdiction 12 and 2 effectual linking into an organic whole of steel pipe, avoid steel to mould the separation, all sections of jurisdiction 12 are connected into plastic inner tube 1 as an organic whole, fully keep the corrosion-resistant and the withstand voltage characteristic of steel pipe 2 of plastic inner tube 1, through the sealed bolt head of plastic apron 4, make 1 inner wall of plastic inner tube keep unanimous, this steel reinforcing plastic tubing simple structure, and it is convenient to make, and is effectual.
Example 2
As shown in figures 1, 4 and 5, the utility model discloses a heavy-calibre steel reinforced plastic pipe, including plastic inner tube 1 and steel pipe 2, the external diameter adaptation of plastic inner tube 1 the internal diameter of steel pipe 2.
As shown in fig. 4, at least one layer of steel mesh 6 is welded on the inner wall of the steel pipe 2, all the steel meshes 6 are embedded in the plastic inner pipe 1, the outer wall of the plastic inner pipe 1 is bonded on the inner wall of the steel pipe 2, and the plastic inner pipe 1 is a PE plastic pipe.
The outer wall of the steel pipe 2 is connected with a protection pipe 5 for protecting the outer wall of the steel pipe 2 is not easy to corrode, the protection pipe 5 is a plastic outer pipe, at least one layer of steel mesh 6 is welded on the outer wall of the steel pipe 2, all the steel mesh 6 is embedded in the plastic outer pipe, the inner wall of the plastic outer pipe is bonded on the outer wall of the steel pipe 2, and the plastic outer pipe is a PE plastic pipe.
As a preferable scheme of this embodiment, as shown in fig. 5, the steel pipe 2 includes an inner steel pipe 22 and an outer steel pipe 23, a plurality of steel stiffening ribs 24 are connected between the inner steel pipe 22 and the outer steel pipe 23, at least one layer of steel mesh 6 is welded on the inner wall of the inner steel pipe 22, and all the steel meshes 6 are embedded in the plastic inner pipe 1, so that the weight of the steel pipe 2 can be reduced while the pressure bearing capacity of the steel pipe 2 is maintained.
Application a heavy-calibre steel reinforcing plastic tubing, through connect steel mesh 6 on 2 inner walls of steel pipe, and utilize 2 inner walls of steel pipe as the exterior sheathing, set up the mandrel in the steel pipe, hot melt injection moulding plastics inner tube 1 between exterior sheathing and the mandrel, it wraps up steel mesh 6 completely to mould plastics, perhaps coat in the plastic melt on steel mesh 6, with the pinch roller compaction, thereby make in the fashioned plastics inner tube 1 of steel mesh 6 embedding, make 2 firm connection plastics inner tubes 1 of steel pipe, avoid steel to mould the separation, fully keep the corrosion-resistant and steel pipe 2 withstand voltage characteristic of plastics inner tube 1, this steel reinforcing plastic tubing simple structure, and convenient manufacture, and good effects.
Example 3
As shown in figure 6, the utility model discloses a heavy-calibre steel reinforced plastic flange, including steel pipe 2 and the steel flange dish 7 rather than being connected.
The inside and outside wall of steel pipe 2 and the surface of steel ring flange 7 all welds has at least one deck steel mesh 6, all steel mesh 6 inlays in plastic layer 8, be equipped with a plurality of flange hole 9 on the steel ring flange 7, all the flange hole 9 passes and corresponds the steel mesh 6 with correspond plastic layer 8, plastic layer 8 is the PE material plastic layer.
Application a heavy-calibre steel reinforcing plastic flange, through connect steel mesh 6 on 2 inside and outside walls of steel pipe and steel ring flange 7 surfaces, locate position hot melt plastic-coated shaping plastic layer 8 at steel mesh 6, plastic-coated wraps up steel mesh 6 completely, in 6 embedding fashioned plastic layer 8 of steel mesh, make 2 inside and outside walls of steel pipe and 7 surface formation plastic protection layers of steel ring flange, make full use of plastic layer 8 is corrosion-resistant and steel pipe 2 and the withstand voltage characteristic of steel ring flange 7, this steel-plastic composite flange simple structure, it is convenient to make, and is effectual.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The large-caliber steel reinforced plastic pipe comprises a plastic inner pipe (1) and a steel pipe (2), and is characterized in that the outer diameter of the plastic inner pipe (1) is matched with the inner diameter of the steel pipe (2), the plastic inner pipe (1) comprises a plurality of pipe segments (12), all the pipe segments (12) can be sequentially spliced to form the plastic inner pipe (1), each pipe segment (12) is provided with at least one countersunk hole (11), each countersunk hole (11) corresponds to one hole (21), all the holes (21) are located on the inner wall of the steel pipe (2), each countersunk hole (11) is connected with the corresponding hole (21) through a bolt (3), a plastic cover plate (4) is connected to the countersunk part, corresponding to the head of each bolt (3), of the countersunk holes (11), and two adjacent pipe segments (12) are subjected to hot melt welding;
each duct piece (12) is a straight plate, and is in press-connection with the inner wall of the steel pipe (2) through the corresponding bolt (3) to be restrained to form a bent plate.
2. Heavy caliber steel reinforced plastic pipe according to claim 1, characterized in that the outer wall of the steel pipe (2) is connected with a protective pipe (5).
3. The heavy caliber steel reinforced plastic pipe according to claim 2, wherein the protective pipe (5) is an outer plastic pipe, and the inner wall of the outer plastic pipe is bonded to the outer wall of the steel pipe (2).
4. A large caliber steel reinforced plastic pipe according to any one of claims 1 to 3, wherein the steel pipe (2) comprises an inner steel pipe (22) and an outer steel pipe (23), and a plurality of steel stiffening ribs (24) are connected between the inner steel pipe (22) and the outer steel pipe (23).
5. The utility model provides a heavy-calibre steel reinforcing plastic tubing, includes plastics inner tube (1) and steel pipe (2), its characterized in that, the external diameter adaptation of plastics inner tube (1) the internal diameter of steel pipe (2), be connected with at least one deck steel mesh (6) on steel pipe (2) inner wall, all steel mesh (6) inlay in plastics inner tube (1).
6. The large-caliber steel reinforced plastic pipe according to claim 5, wherein the plastic inner pipe (1) comprises a plurality of pipe pieces (12), all the pipe pieces (12) can be spliced in sequence to form the plastic inner pipe (1), and the heat fusion welding is carried out between the adjacent two pipe pieces (12).
7. The large-caliber steel reinforced plastic pipe according to claim 5, wherein the steel pipe (2) comprises an inner steel pipe (22) and an outer steel pipe (23), a plurality of steel stiffening ribs (24) are connected between the inner steel pipe (22) and the outer steel pipe (23), at least one layer of steel mesh (6) is connected to the inner wall of the inner steel pipe (22), and all the steel meshes (6) are embedded in the plastic inner pipe (1).
8. Heavy caliber steel reinforced plastic pipe according to any one of claims 5 to 7, characterized in that the outer wall of the steel pipe (2) is connected with a protective pipe (5).
9. The large-caliber steel-reinforced plastic pipe according to claim 8, wherein the protective pipe (5) is a plastic outer pipe, at least one layer of steel mesh (6) is connected to the outer wall of the steel pipe (2), and all the steel meshes (6) are embedded in the plastic outer pipe.
10. The utility model provides a heavy-calibre steel reinforced plastic flange, includes steel pipe (2) and steel ring flange (7) rather than being connected, its characterized in that, the inside and outside wall of steel pipe (2) and the surface of steel ring flange (7) all is connected with at least one deck steel mesh (6), all steel mesh (6) inlay in plastic layer (8), be equipped with a plurality of flange hole (9) on steel ring flange (7), all flange hole (9) pass and correspond steel mesh (6) and correspond plastic layer (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920680110.5U CN210034664U (en) | 2019-05-13 | 2019-05-13 | Large-diameter steel reinforced plastic pipe and flange |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920680110.5U CN210034664U (en) | 2019-05-13 | 2019-05-13 | Large-diameter steel reinforced plastic pipe and flange |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210034664U true CN210034664U (en) | 2020-02-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920680110.5U Expired - Fee Related CN210034664U (en) | 2019-05-13 | 2019-05-13 | Large-diameter steel reinforced plastic pipe and flange |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210034664U (en) |
-
2019
- 2019-05-13 CN CN201920680110.5U patent/CN210034664U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200207 Termination date: 20210513 |
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| CF01 | Termination of patent right due to non-payment of annual fee |