CN220644505U

CN220644505U - Fiber reinforced composite pipe

Info

Publication number: CN220644505U
Application number: CN202321678381.XU
Authority: CN
Inventors: 陈文�
Original assignee: Chengdu Full Staff Plastic Pipe Industry Co ltd
Current assignee: Chengdu Full Staff Plastic Pipe Industry Co ltd
Priority date: 2023-06-28
Filing date: 2023-06-28
Publication date: 2024-03-22
Anticipated expiration: 2033-06-28

Abstract

The utility model discloses a fiber reinforced composite pipe, which comprises reinforcing fibers and at least two pipe bodies, wherein a lap joint structure is arranged between two adjacent pipe bodies, the lap joint structure is spirally arranged, and the reinforcing fibers are spirally arranged in the lap joint structure in a penetrating way. The utility model adopts the spiral reinforcing fiber to reinforce the pipe body, so that the performance of the drain pipe is greatly improved, the raw materials are greatly saved, the production cost is greatly reduced, and the service life and the use reliability of the drain pipe are improved.

Description

Fiber reinforced composite pipe

Technical Field

The utility model belongs to the technical field of pipes, and particularly relates to a fiber reinforced composite pipe.

Background

The drain pipe mainly bears the tasks of draining rainwater, sewage, farmland drainage and irrigation and the like, is divided into a plastic drain pipe, a concrete pipe and a reinforced concrete pipe, and has the characteristics of low cost and corrosion resistance to most chemicals for life and industry, so that the drain pipe is widely used. Most of plastic drain pipes in the market at present are made of PE as a main material, and PE is a widely used material of drain pipes, and has many advantages such as simple construction and maintenance, long service life, resistance to corrosion of most chemicals for life and industry, etc., but has a disadvantage that PE resin has low elastic modulus, and more materials must be consumed for the drain pipes to have high ring stiffness. The traditional mode adopts a certain structural form as a main means for increasing the rigidity of the ring, but the water draining pipe is heavy and has high production cost. In addition, the steel skeleton or steel wires are used for increasing the ring rigidity of the drain pipe through various structures, so that a lot of raw materials can be saved, but steel is easy to rust, and once the whole structure of the pipe is corroded, the structure of the whole pipe is collapsed, so that the reinforced pipe has great hidden trouble.

Disclosure of Invention

The object of the present utility model is to provide a fiber reinforced composite pipe for solving the above problems in the prior art.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: the fiber reinforced composite pipe comprises reinforcing fibers and at least two pipe bodies, wherein a lap joint structure is arranged between every two adjacent pipe bodies, the lap joint structure is spirally arranged, and the reinforcing fibers are spirally arranged in the lap joint structure in a penetrating mode.

As an alternative embodiment of the foregoing technical solution, the reinforcing fiber includes a first fiber rope and a second fiber rope, and the first fiber rope and the second fiber rope are both threaded in the gap of the lap joint structure.

As an optional implementation manner of the above technical solution, the gap of the lap joint structure is filled with an adhesive, the first fiber rope is located at the outer side of the adhesive, and the second fiber rope is located at the inner side of the adhesive.

As an optional implementation manner of the above technical solution, a capping layer is disposed at a gap opening of the lapping structure, and the first fiber rope is located at an inner side of the capping layer.

As an optional implementation manner of the above technical solution, the first fiber rope and the second fiber rope are made of carbon fiber, basalt fiber or ultra-high molecular weight polyethylene fiber.

As an optional implementation manner of the above technical scheme, the lapping structure comprises a first spiral flange and a second spiral flange, the first spiral flange and the second spiral flange are respectively arranged at two ends of the pipe body, a lapping groove is formed in the inner side of the first spiral flange, and a lapping block matched with the lapping groove is arranged in the inner side of the second spiral flange.

As an optional implementation manner of the foregoing technical solution, the first spiral flange and the second spiral flange are both hollow structures.

As an optional implementation manner of the above technical solution, the pipe further comprises a sealing layer, wherein the sealing layer is arranged on the inner wall of the pipe body and seals the inner wall of the lap joint structure.

As an alternative embodiment of the above technical solution, the sealing layer includes a sealing portion disposed on the inner wall of the pipe body and a filling portion disposed on the outer side of the sealing portion and filled in the gap between the overlap block and the overlap groove.

As an optional implementation manner of the above technical solution, the pipe body is a PE pipe.

The beneficial effects of the utility model are as follows:

the utility model provides a fiber reinforced composite pipe, which comprises reinforcing fibers and at least two pipe bodies, wherein a lap joint structure is arranged between two adjacent pipe bodies, the lap joint structure is spirally arranged, and the reinforcing fibers are spirally arranged in the lap joint structure in a penetrating way. The utility model adopts the spiral reinforcing fiber to reinforce the pipe body, so that the performance of the drain pipe is greatly improved, the raw materials are greatly saved, the production cost is greatly reduced, and the service life and the use reliability of the drain pipe are improved.

Drawings

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

FIG. 2 is an enlarged view of portion A of FIG. 1;

fig. 3 is a schematic view of the structure of a belt profile in one embodiment of the utility model.

In the figure: 1-reinforcing fibers; 2-a tube body; 3-lap joint structure; 4-a first fiber rope; 5-a second fiber rope; 6-bonding material; 7-capping layer; 8-a first helical flange; 9-a second helical flange; 10-sealing part; 11-a filling part; 12-band-shaped section bar.

Detailed Description

Examples

As shown in fig. 1-3, this embodiment provides a fiber reinforced composite pipe, including a reinforcing fiber 1 and a plurality of pipe bodies 2, pipe body 2 is the PE pipe, is equipped with overlap joint structure 3 between two adjacent pipe bodies 2, overlap joint structure 3 is the spiral setting, reinforcing fiber 1 spiral wears to establish in overlap joint structure 3. The utility model adopts the spiral reinforcing fiber 1 to reinforce the pipe body 2, so that the performance of the drain pipe is greatly improved, the raw materials are greatly saved, the production cost is greatly reduced, and the service life and the use reliability of the drain pipe are improved.

As shown in fig. 2, in particular, the overlap structure 3 includes a first spiral flange 8 and a second spiral flange 9, and the first spiral flange 8 and the second spiral flange 9 are hollow structures. The first spiral flange 8 and the second spiral flange 9 are respectively arranged at two ends of the pipe body 2, the inner side of the first spiral flange 8 is provided with a lap joint groove, and the inner side of the second spiral flange 9 is provided with a lap joint block matched with the lap joint groove. The two adjacent pipe bodies 2 are connected through the first spiral flange 8 and the second spiral flange 9, and the lap joint groove of the first spiral flange 8 is matched with the lap joint block of the second spiral flange 9, so that the connection stability of the two pipe bodies 2 is improved.

As shown in fig. 3, the pipe body 2 is formed by curling a strip-shaped section bar 12, the first spiral flange 8 and the second spiral flange 9 are preset on the strip-shaped section bar 12, and after a plurality of pipe bodies 2 are connected, a plurality of lap joint structures 3 are spirally arranged on the surface of the drain pipe.

The drain pipe also comprises a sealing layer which is arranged on the inner wall of the pipe body 2 and seals the inner wall of the lap joint structure 3. The arrangement of the sealing layer enables the inside of the drain pipe to form a complete whole without connecting joints, thereby avoiding the problem of water leakage.

Specifically, the sealing layer comprises a sealing part 10 and a filling part 11, the sealing part 10 is arranged on the inner wall of the pipe body 2, the filling part 11 is arranged on the outer side of the sealing part 10 and is filled in a gap between the overlap block and the overlap groove, and the sealing effect of the overlap block and the overlap groove is improved.

As shown in fig. 2, in the present embodiment, the reinforcing fiber 1 includes a first fiber rope 4 and a second fiber rope 5, and the first fiber rope 4 and the second fiber rope 5 are each provided in a gap of the lap joint structure 3 in a penetrating manner. The first fiber rope 4 and the second fiber rope 5 are positioned outside the lap joint block and are positioned in the gap between the first spiral flange 8 and the second spiral flange 9, so that the strength of the drain pipe is improved.

Preferably, the gap between the first spiral flange 8 and the second spiral flange 9 is filled with the adhesive 6, the first fiber strands 4 are located outside the adhesive 6, and the second fiber strands 5 are located inside the adhesive 6. The gap opening between the first spiral flange 8 and the second spiral flange 9 is provided with a capping layer 7, said first fibre rope 4 being located inside the capping layer 7. The capping layer 7 seals the gap between the first spiral flange 8 and the second spiral flange 9.

The first fiber ropes 4 and the second fiber ropes 5 are non-metal fiber ropes, the non-metal fiber ropes are made of carbon fibers, basalt fibers or ultra-high molecular weight polyethylene fibers, the tensile strength of the carbon fibers, the basalt fibers and the ultra-high molecular weight polyethylene fibers is several times that of steel with the same volume, the tensile strength of the carbon fibers, the basalt fibers and the ultra-high molecular weight polyethylene fibers is hundreds of times higher than that of high-density PE with the same volume, and the non-metal fiber ropes are mutually matched with PE pipes, so that the strength of a drain pipe is greatly enhanced.

The production mode of the fiber reinforced composite pipe comprises the following steps: extruding PE material through a die head by a first extruder, shaping by a shaping die to form a strip-shaped section 12, and extruding the melted PE material by a second extruder through a co-extrusion die connected with the second extruder, wherein the second extruder coats molten PE material on the bottom and lap joint of the strip-shaped section 12; the ribbon-shaped section 12 is curled into a spiral pipe which is lapped back and forth through a mechanism rotating around the center, then a third extruder is used for extruding molten material to be coated on the lap joint of the spiral pipe, the spiral pipe is stuck into a whole, two nonmetallic fiber ropes are laid at the lap joint to strengthen the strength of the spiral pipe, and then a fourth extruder is used for extruding a capping layer 7 to cover the nonmetallic fiber ropes.

In the description of the present utility model, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be fixedly connected, detachably connected, or integrally formed; may be a mechanical or electrical connection; may be directly connected or indirectly connected through an intermediate medium, and may be in communication with the inside of two elements or in interaction with the two elements, the specific meaning of the terms being understood by those skilled in the art. Furthermore, the particular features, structures, etc. described in the examples are included in at least one embodiment and those of skill in the art may combine features of different embodiments without contradiction. The scope of the present utility model is not limited to the above-described specific embodiments, and embodiments which can be suggested to those skilled in the art without inventive effort according to the basic technical concept of the present utility model are all within the scope of the present utility model.

Claims

1. The fiber reinforced composite pipe is characterized by comprising reinforcing fibers (1) and at least two pipe bodies (2), wherein a lap joint structure (3) is arranged between every two adjacent pipe bodies (2), the lap joint structure (3) is spirally arranged, and the reinforcing fibers (1) are spirally arranged in the lap joint structure (3) in a penetrating manner; the reinforcing fiber (1) comprises a first fiber rope (4) and a second fiber rope (5), and the first fiber rope (4) and the second fiber rope (5) are respectively penetrated in the gap of the lap joint structure (3); the gap of the lap joint structure (3) is filled with adhesive (6), the first fiber rope (4) is positioned at the outer side of the adhesive (6), and the second fiber rope (5) is positioned at the inner side of the adhesive (6); the gap opening of the lap joint structure (3) is provided with a capping layer (7), and the first fiber ropes (4) are positioned on the inner side of the capping layer (7).

2. The fiber reinforced composite pipe according to claim 1, wherein the first fiber rope (4) and the second fiber rope (5) are each made of carbon fiber, basalt fiber or ultra-high molecular weight polyethylene fiber.

3. The fiber reinforced composite pipe according to claim 1, wherein the overlap structure (3) comprises a first spiral flange (8) and a second spiral flange (9), the first spiral flange (8) and the second spiral flange (9) are respectively arranged at two ends of the pipe body (2), an overlap groove is arranged at the inner side of the first spiral flange (8), and an overlap block matched with the overlap groove is arranged at the inner side of the second spiral flange (9).

4. A fibre reinforced composite pipe according to claim 3, characterized in that the first (8) and second (9) spiral flanges are hollow structures.

5. A fibre reinforced composite pipe according to claim 3, further comprising a sealing layer arranged on the inner wall of the pipe body (2) and sealing the inner wall of the overlap structure (3).

6. A fiber reinforced composite pipe according to claim 5, wherein the sealing layer comprises a sealing portion (10) and a filling portion (11), the sealing portion (10) being provided on the inner wall of the pipe body (2), the filling portion (11) being provided outside the sealing portion (10) and filling in the gap between the overlap block and the overlap groove.

7. Fiber reinforced composite pipe according to claim 1, characterized in that the pipe body (2) is a PE pipe.