CN220204942U

CN220204942U - Composite reinforced drain pipe

Info

Publication number: CN220204942U
Application number: CN202321593189.0U
Authority: CN
Inventors: 刘洋; 曾世艳
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-06-20
Filing date: 2023-06-20
Publication date: 2023-12-19
Anticipated expiration: 2033-06-20

Abstract

A composite reinforced drain pipe relates to a water supply and drain pipeline, and belongs to the field of pipe manufacture. The strip-shaped profile is formed by winding and bonding molten materials after being lapped, hollow fins are respectively arranged on the left side and the right side of the strip-shaped profile along the length direction, ribs are arranged at the tops of the outer side walls of the hollow fins, and grooves are arranged at the bottoms of the hollow fins. The utility model has the beneficial effects that: the metal wires are laid on the pipeline body and the hollow wing plates, so that the pipeline has higher ring stiffness, is light and handy, is convenient to construct, and simultaneously reduces the production cost.

Description

Composite reinforced drain pipe

Technical field:

a composite reinforced drain pipe relates to a water supply and drain pipeline, and belongs to the field of pipe manufacture.

The background technology is as follows:

most PE drain pipes in the market are made of PE, and the structure of the PE drain pipe is either internally and externally flat (A type) or internally flat, and the outer wall corrugation (B type) is of a pure plastic structure. PE is a widely used material for drain pipes, which has many advantages, but has a disadvantage of low modulus of elasticity. However, to make the drain pipe have high ring rigidity, more PE material must be consumed, so that the drain pipe has high meter weight, the production cost is high, and the pipeline is heavy and inconvenient to construct during construction. Therefore, it is necessary to develop a PE drain pipe with high ring stiffness and light weight.

Chinese patent No. CN201620695555.7 discloses a "ribbed helical bellows with locking structure", which is formed by winding a strip material, wherein the strip material has hollow fins, and the hollow fins are provided with angular welding cavities, and after two adjacent fins are bonded, the corresponding two angular welding cavities are welded to form the drain pipe. The drainage pipe with the structure has the advantages that the middle wing piece plays a role in improving the strength of the pipe, but the ring rigidity is low, and the meter weight is high.

The utility model comprises the following steps:

the utility model aims to solve the problems of providing the drain pipe with high ring stiffness and light weight. The technical scheme is as follows:

a composite reinforced drain pipe is formed by winding and overlapping strip-shaped sections and bonding the strip-shaped sections through molten materials, wherein hollow fins are respectively arranged on the left side and the right side of each strip-shaped section along the length direction, convex edges are arranged at the tops of the outer side walls of the hollow fins, and grooves are arranged at the bottoms of the hollow fins.

2-5 metal wires are laid in the bottom of the strip-shaped section along the length direction.

And reinforcing ribs are arranged on the outer surface of the strip-shaped section bar.

Compared with the prior art, the utility model has the following beneficial effects:

1. the pipeline body and the hollow wing plates are both coated with metal wires (such as steel wires), and the tensile strength of the steel wires is about 100 times that of plastic, so that the pipeline has higher ring rigidity.

2. The ring stiffness is improved, and under the condition that the specifications such as the diameter and the like are the same, the PE raw material can be consumed less (the PE raw material with the same ring stiffness can be saved by about 30 percent), and the rice weight is naturally reduced. The current weight per meter of the pipe is 28 kg, and the pipe of the utility model is about 17 kg, in terms of a pipe with a diameter of 600 mm and a ring stiffness of 8 kilonewtons. The pipeline is light and convenient to construct, and the production cost is reduced (the cost of the steel wire material is about 5% of the cost of the whole pipeline under the condition that the PE material is saved by about 30%).

3. The upper part and the lower part of the pipeline are provided with the lock catches, so that the sectional materials are firmly connected together and are not easy to fall off.

4. The outer wall of the pipeline is provided with at least one reinforcing rib, so that the strength of the outer wall of the pipe is improved.

Description of the drawings:

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is an enlarged schematic cross-sectional view of the band profile of the present utility model;

FIG. 3 is an enlarged schematic view of the portion of FIG. 1A;

fig. 4 is a schematic cross-sectional view of another embodiment of the band profile of the present utility model.

The specific embodiment is as follows:

referring to fig. 1 to 3, a composite reinforced drain pipe is formed by winding and overlapping a strip-shaped section bar 1 and bonding the strip-shaped section bar with a molten material 8, wherein hollow fins 2 are respectively arranged on the left side and the right side of the strip-shaped section bar 1 along the length direction, convex edges 5 are arranged at the tops of the outer side walls of the hollow fins 2, and grooves 6 are arranged at the bottoms of the outer side walls of the hollow fins.

2-5 metal wires 3 are laid in the longitudinal direction in the bottom of the strip-shaped section bar 1.

The outer surface of the strip-shaped profile 1 is positioned between the two hollow fins 2, and reinforcing ribs 7 protruding from the surface are arranged along the length direction.

When the drainage pipeline is produced, the method comprises the following steps:

1) The metal wire 3 passes through a shaping die to form an internal metal wire at the bottom of the strip-shaped section bar 1, the pe melt is extruded by a first extruder through a die head, and the strip-shaped section bar 1 with the hollow wing pieces 2, the convex edges 5, the grooves 6 and the steps 4 is formed by shaping through the shaping die; the bottom of the strip-shaped section bar 1, the step 4 and the concave cavity formed by the two convex edges 5 are uniformly provided with metal wires 3, and the metal wires 3 are preferably steel wires;

2) Through a mechanism rotating around the center, the strip-shaped section bar 1 is wound into a spiral pipe which is lapped front and back, meanwhile, a second extruder extrudes PE melt 8 to be coated on the left side or the right side of the section bar, the melt glues the strip-shaped section bar 1 into a whole, meanwhile, a steel wire 3 is respectively laid on the step part and the top of the section bar, then a third extruder extrudes the melt to cover the steel wire on the top of the hollow wing piece, an upper lock catch 9 is formed, and the melt filled in the groove 6 forms a lower lock catch 10.

Claims

1. A composite reinforced drain pipe is formed by bonding molten materials (8) after winding and lapping strip-shaped sectional materials (1), wherein hollow fins (2) are respectively arranged on the left side and the right side of the strip-shaped sectional materials (1) along the length direction, convex edges (5) are arranged at the tops of the outer side walls of the hollow fins (2), and grooves (6) are arranged at the bottoms of the hollow fins.

2. A composite reinforced drain pipe according to claim 1, characterized in that 2-5 wires (3) are laid in length direction inside the bottom of the strip profile (1).

3. A composite reinforced drain pipe according to claim 1, characterized in that the outer surface of the strip-shaped profile (1) is provided with reinforcing ribs (7).

4. The composite reinforced drain pipe according to claim 1, wherein the number of steps (4) of the outer side wall of the hollow fin (2) is 1 to 5.