CN211816776U

CN211816776U - Polyethylene steel reinforced four-cavity high-resistance pipe

Info

Publication number: CN211816776U
Application number: CN201922253052.0U
Authority: CN
Inventors: 曹能健
Original assignee: Shanghai Ruihuang Pipe Technology Co ltd
Current assignee: Shanghai Ruihuang Pipe Technology Co ltd
Priority date: 2019-12-16
Filing date: 2019-12-16
Publication date: 2020-10-30
Anticipated expiration: 2029-12-16

Abstract

The utility model relates to a polyethylene steel reinforced four-cavity high-resistance pipe, which comprises a pipe body formed by spirally winding a winding unit, a steel reinforcing belt wound outside the pipe body and an outer cover sheet covering the pipe body and the steel reinforcing belt; the pipe body is provided with a wave crest and a wave trough which extend in a spiral way, and the steel reinforcing belt is wound at the wave trough in a spiral way; the winding unit comprises bulges with cavities at two sides and a concave part between the two bulges, and an internal reinforcing belt is arranged at the concave part; the cross section of the steel reinforcing belt is in a curved shape, and two side parts of the steel reinforcing belt are directly contacted with the outer surface of the inner reinforcing belt. The trough position of the tube body is provided with a spirally extending inner reinforcing belt, the trough position of the tube body is spirally wound with a steel reinforcing belt, and the steel reinforcing belt is not in direct contact with the appearance of the single-layer tube wall but in contact with the appearance of the inner reinforcing belt, so that the strength of the tube wall part is enhanced, the stress condition of the tube wall part is improved, the radial height of the steel reinforcing belt can be reduced, and the radial support stability of the steel reinforcing belt is optimized.

Description

Polyethylene steel reinforced four-cavity high-resistance pipe

Technical Field

The utility model belongs to the pipeline field especially relates to a four chamber high resistance pipes of polyethylene steel reinforcing.

Background

With the pace of urban construction quickening, the use of the drain pipe is more and more extensive, and the requirement on the drain pipe is higher and higher. An important parameter index of the drain pipe is ring stiffness, the ring stiffness is an important index of the drain pipe bearing radial acting force under the ground, the ring stiffness is high, the radial bearing force of the drain pipe is greatly improved after the drain pipe is buried, namely, the drain pipe is higher in safety after being buried, and the possibility of crushing is reduced, so that all drain pipe manufacturers are researching how to improve the ring stiffness of the drain pipe.

To increase ring rigidity, can realize through the mode that increases pipeline wall thickness, that is to say through increasing the material quantity, but the whole weight of tubular product can be aggravated after the material quantity increases, and the material of tubular product increases for tubular product cost increase, the cost of transportation also can rise.

Therefore, the design is made, the ring stiffness of the pipeline is improved by adding the steel reinforcing belt in the pipeline, but most of the existing steel reinforcing belts are wound on the concave parts of the pipe belt, the steel reinforcing belts are directly contacted with the appearance of the pipe wall of the pipe belt, the radial acting force acts on the appearance of the pipe wall through the steel reinforcing belts, the stress condition of the pipe wall part is improved slightly, the steel reinforcing belts are directly exposed or plastic-coated layers are coated outside the steel reinforcing belts, but the contact between the convex parts on the two sides of the pipe belt and the steel reinforcing belts is less, and the unified integrated bearing structure cannot be realized.

Disclosure of Invention

The utility model provides a four chamber high resistance pipes of polyethylene steel reinforcing, set up the interior strengthening band in the concave part outward appearance of pipe area, the steel strengthening band contacts with the outward appearance of interior strengthening band to strengthen the intensity at pipe wall position, improve the atress condition at pipe wall position, also can reduce the radial height of steel strengthening band simultaneously, optimize its support stability in the radial; and meanwhile, the outer cover plate covers the convex part and the concave part of the pipe belt, the outer cover plate also covers the top position of the steel reinforcing belt, and the convex parts and the concave parts on the two sides of the pipe belt are linked with each other, so that an integrated bearing structure is realized.

The utility model discloses a concrete technical scheme does: a polyethylene steel reinforced four-cavity high-resistance pipe comprises a pipe body formed by spirally winding a winding unit, a steel reinforcing belt wound outside the pipe body and an outer cover sheet covering the pipe body and the steel reinforcing belt; the pipe body is provided with a wave crest and a wave trough which extend in a spiral way, and the steel reinforcing belt is wound at the wave trough in a spiral way; the winding unit comprises bulges with cavities at two sides and a concave part between the two bulges, and an internal reinforcing belt is arranged at the concave part; the cross section of the steel reinforcing belt is in a curved shape, and two side parts of the steel reinforcing belt are directly contacted with the outer surface of the inner reinforcing belt.

The inner reinforcing belt is arranged at the concave part of the winding unit and spirally wound along with the winding unit, so that the spirally extending inner reinforcing belt is arranged at the trough position of the pipe body, the steel reinforcing belt is spirally wound at the trough position of the pipe body, and the steel reinforcing belt is not directly contacted with the appearance of the single-layer pipe wall but contacted with the appearance of the inner reinforcing belt, thereby enhancing the strength of the pipe wall part, improving the stress condition of the pipe wall part, simultaneously reducing the radial height of the steel reinforcing belt and optimizing the support stability of the steel reinforcing belt in the radial direction; and meanwhile, the outer cover plate covers the convex part and the concave part of the pipe belt, the outer cover plate also covers the top position of the steel reinforcing belt, and the convex parts and the concave parts on the two sides of the pipe belt are linked with each other, so that an integrated bearing structure is realized.

Further preferably, the winding unit includes the bottom, is in both sides position and bottom looks vertically side and the interior limit of bending form connection bottom and side, and two interior limits on the bottom are relative, and bottom, side and interior limit enclose out the side cavity, and interior strengthening band sets up the concave part between two interior limits.

Preferably, the inner edge has a short straight edge and a long arc edge, the short straight edge is perpendicular to the bottom layer, the long arc edge is arc-shaped, and the long arc edge is connected with the edge of the side edge and the edge of the short straight edge. The inner edges comprise short straight edges and long arc edges, the short straight edges are perpendicular to the bottom layer, and when the pipe is buried in the ground and is supported by stress, the bearing structure of the pipe is optimized through the dispersion of the long arc edges and the radial action of the short straight edges on the bottom layer.

Further preferably, the inner reinforcing belt is integrally formed with the winding unit; or the inner reinforcing band is formed separately and then combined between the two protrusions of the winding unit.

Further preferably, the inner reinforcing band is of a solid structure or a hollow structure, and after the inner reinforcing band is arranged, an inner cavity is formed in the concave part between the cavities at the two sides.

Preferably, the cross section of the steel reinforcing belt is of a symmetrical structure, the top of the steel reinforcing belt is an arc top, two sides of the steel reinforcing belt are bent into an arc shape, and the arc bending directions of the two sides are opposite to the arc bending direction of the top. The steel reinforcing belt is of an arc-shaped bending structure at two sides, and the bending direction is opposite to that of the top, so that when the steel reinforcing belt is radially pressed, acting force is converted into axial force by the steel reinforcing belt, and the radial stress of the pipe is reduced.

Further preferably, the arc-shaped top is connected with the two side edges in a straight surface mode.

Further preferably, the arcuate outer surfaces on both sides of the steel reinforcing strip are in contact with the outer surface of the inner reinforcing strip. The contact is linear contact, when the steel reinforcing belt is pressed, the contact part can move and contact in an arc shape, and the steel reinforcing belt is prevented from damaging the inner reinforcing belt.

Preferably, the edges of the two sides of the steel reinforcing band are flared, the flared parts are attached to the opposite surfaces of the protrusions, and after the steel reinforcing band is arranged, a deformation gap is formed at the transition position between the protrusions and the inner reinforcing band.

Preferably, the top of the steel reinforcing belt is higher than the top of the protrusion of the winding unit, and the outer cover plate is arched in an arc shape; the bottom of the winding unit is compounded with a yellow inner layer.

The utility model has the advantages that: the inner reinforcing belt is arranged at the concave part of the winding unit and spirally wound along with the winding unit, so that the spirally extending inner reinforcing belt is arranged at the trough position of the pipe body, the steel reinforcing belt is spirally wound at the trough position of the pipe body, and the steel reinforcing belt is not directly contacted with the appearance of the single-layer pipe wall but contacted with the appearance of the inner reinforcing belt, thereby enhancing the strength of the pipe wall part, improving the stress condition of the pipe wall part, simultaneously reducing the radial height of the steel reinforcing belt and optimizing the support stability of the steel reinforcing belt in the radial direction; and meanwhile, the outer cover plate covers the convex part and the concave part of the pipe belt, the outer cover plate also covers the top position of the steel reinforcing belt, and the convex parts and the concave parts on the two sides of the pipe belt are linked with each other, so that an integrated bearing structure is realized.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic view of a winding unit structure of the present invention;

FIG. 3 is a schematic structural view of a second winding unit of the present invention;

in the figure: 1. winding unit, 2, welding part, 3, bottom layer, 4, side edge, 5, inner edge, 6, side cavity, 7, outer cover plate, 8, steel reinforcing band, 9, outer cavity, 10, inner reinforcing band, 11, inner cavity, 12, supporting bent part, 13 and inner layer.

Detailed Description

The invention will be further described with reference to specific embodiments and with reference to the accompanying drawings.

Example 1:

as shown in fig. 1 and fig. 2, the polyethylene steel reinforced four-cavity high-resistance pipe comprises a pipe body formed by spirally winding a winding unit 1, a steel reinforcing strip 8 wound outside the pipe body, and an outer cover sheet 7 covering the pipe body and the steel reinforcing strip. The pipe body is provided with a wave crest and a wave trough which extend in a spiral shape, and the steel reinforcing belt is wound at the wave trough in a spiral mode.

The winding unit comprises bulges with side cavities at two sides and a concave part between the two bulges, an inner reinforcing belt 10 is arranged at the concave part, the cross section of the steel reinforcing belt is in a bent shape, and the two side parts of the steel reinforcing belt are directly contacted with the outer surface of the inner reinforcing belt. The winding unit includes that the side 4 and the interior limit 5 of bending form connection bottom and side of the perpendicular bottom in bottom 3, both sides, two interior limits on the bottom are relative, and bottom, side and interior limit enclose out side cavity 6, and interior strengthening band sets up the concave part between two interior limits. The inner edge is provided with a short straight edge and a long arc edge, the short straight edge is perpendicular to the bottom layer, the long arc edge is arc-shaped, and the long arc edge is connected with the edge of the side edge and the edge of the short straight edge. The inner reinforcing belt is formed separately and compounded between the two protrusions of the winding unit, the inner reinforcing belt is of a hollow structure, and after the inner reinforcing belt is arranged, an inner cavity 11 is formed in the concave part between the cavities at the two sides.

The cross section of the steel reinforcing belt is of a symmetrical structure, the top is an arc top, two sides of the steel reinforcing belt are bent into an arc shape to form a supporting bent part 12, and the arc bending directions of the two sides are opposite to the arc bending direction of the top. The arc top is connected with the edges of the two sides in a straight surface mode, and the outer surfaces of the supporting bent parts on the two sides of the steel reinforcing belt are in contact with the outer surface of the inner reinforcing belt.

The edges of two sides of the steel reinforcing belt are flared, the flared parts are attached to the opposite surfaces of the bulges, and after the steel reinforcing belt is arranged, a deformation gap is formed at the transition position between the bulges and the inner reinforcing belt. The top of the steel reinforcing belt is higher than the top of the winding unit, the outer cover sheet is arched in an arc shape, and an outer cavity 9 is formed between the outer cover sheet and the inner reinforcing belt.

As shown in figure 3, the bottom of the winding unit is compounded with a yellow inner layer 13, a gap is left between adjacent sides to form a welding part 2 in the spiral winding process of the winding unit, and hot melt adhesive is injected into the welding part.

The above, only be the utility model discloses a preferred embodiment, it is not right the utility model discloses do any restriction, all according to the utility model discloses the technical entity all still belongs to any simple modification, change and equivalent transformation of doing above embodiment the utility model discloses technical scheme's protection scope.

Claims

1. The polyethylene steel reinforced four-cavity high-resistance pipe is characterized by comprising a pipe body formed by spirally winding a winding unit (1), a steel reinforcing belt (8) wound outside the pipe body and an outer cover sheet (7) covering the pipe body and the steel reinforcing belt; the pipe body is provided with a wave crest and a wave trough which extend in a spiral way, and the steel reinforcing belt is wound at the wave trough in a spiral way; the winding unit comprises bulges with cavities at two sides and a concave part between the two bulges, and an internal reinforcing belt (10) is arranged at the concave part; the cross section of the steel reinforcing belt is in a curved shape, and two side parts of the steel reinforcing belt are directly contacted with the outer surface of the inner reinforcing belt.

2. The polyethylene steel reinforced four-chamber high-resistance pipe according to claim 1, wherein the winding unit comprises a bottom layer (3), side edges (4) which are perpendicular to the bottom layer at two sides, and inner edges (5) which are connected with the bottom layer and the side edges in a bending manner, the two inner edges on the bottom layer are opposite, the bottom layer, the side edges and the inner edges enclose a side cavity (6), and the inner reinforcing belt is arranged in a concave part between the two inner edges.

3. The polyethylene steel reinforced four-chamber high resistance pipe according to claim 2, wherein the inner edge has a short straight edge perpendicular to the bottom layer and a long arc edge having a circular arc shape, the long arc edge connecting the edges of the side edges and the short straight edge.

4. The polyethylene steel reinforced four-chamber high resistance pipe according to claim 1, 2 or 3, wherein the inner reinforcing band is integrally formed with the winding unit; or the inner reinforcing band is formed separately and then combined between the two protrusions of the winding unit.

5. The polyethylene steel reinforced four-chamber high-resistance pipe according to claim 4, wherein the inner reinforcing band is of a solid structure or a hollow structure, and an inner cavity (11) is formed at a concave part between two cavities after the inner reinforcing band is arranged.

6. The polyethylene steel reinforced four-chamber high-resistance pipe according to claim 1, 2 or 3, wherein the cross section of the steel reinforcing strip is of a symmetrical structure, the top is an arc top, two side parts of the steel reinforcing strip are bent into an arc shape, and the arc bending directions of the two side parts are opposite to the arc bending direction of the top.

7. The polyethylene steel reinforced four-chamber high-resistance pipe according to claim 6, wherein the arc-shaped top is connected with the two side edges in a straight surface mode.

8. The polyethylene steel reinforced four-chamber high resistance pipe according to claim 6, wherein the arc-shaped outer surfaces of both sides of the steel reinforcing band are in contact with the outer surface of the inner reinforcing band.

9. The polyethylene steel reinforced four-chamber high-resistance pipe according to claim 1, 2 or 3, wherein two side edges of the steel reinforcing strip are flared, the flared parts are attached to the opposite outer surfaces of the protrusions, and deformation gaps are formed at the transition positions between the protrusions and the inner reinforcing strip after the steel reinforcing strip is arranged.

10. The polyethylene steel reinforced four-chamber high-resistance pipe according to claim 1, 2 or 3, wherein the top of the steel reinforced belt is higher than the top of the protrusion of the winding unit, and the outer cover plate is arched in an arc shape; the bottom of the winding unit is compounded with a yellow inner layer (13).