Continuous fiber reinforced thermoplastic cbf composite pipe

Abstract

This utility model belongs to the field of pipeline structure technology, and discloses a continuous fiber reinforced thermoplastic (CBF) composite pipe, comprising a composite pipe body. The surface of the composite pipe body has three-dimensional threaded grooves that are perpendicular to the longitudinal axis of the composite pipe body and continuously distributed in parallel. The three-dimensional threaded grooves are formed by molding continuous inorganic non-metallic fibers and thermoplastic materials, and reinforcing ribs are formed at the mold closing points. The reinforcing ribs are parallel to the central axis of the composite pipe body and continuous along the longitudinal axis of the composite pipe body. In this technical solution, the surface of the composite pipe body is a three-dimensional threaded groove composed of continuous inorganic non-metallic fibers and thermoplastic materials. The shape of the three-dimensional threaded grooves can be triangular, trapezoidal, or rectangular, and reinforcing ribs composed of continuous fibers and thermoplastic materials are naturally formed at the mold closing points of the composite molding. The three-dimensional threaded grooves and reinforcing ribs enhance the rigidity and stiffness of the CBF composite pipe, facilitate the connection of the composite pipe, and result in neat sealing of the connection end face with good airtightness.

Description

Technical Field

[0001] This utility model belongs to the field of pipeline technology, specifically relating to a continuous fiber reinforced thermoplastic CBF composite pipe. Background Technology

[0002] Composite pipes are commonly used in existing urban water diversion and transmission systems, municipal water supply networks, urban stormwater and sewage networks, farmland irrigation, water conservancy and hydropower, petrochemical and other fields. Existing composite pipes enhance their strength by incorporating reinforcing layers.

[0003] Currently, composite pipes or some other pipe materials are prone to deformation and bending during installation and use, especially in environments with heavy pressure. In particular, the connection of fiber-reinforced composite pipes is very inconvenient, and the pipe end face often results in the destruction of the entire pipeline system due to poor sealing.

[0004] Based on this, a continuous fiber reinforced thermoplastic CBF composite pipe is studied and relates to. Utility Model Content

[0005] This utility model provides a continuous fiber-reinforced thermoplastic (CBF) composite pipe. It mainly features a composite pipe body with multiple parallel, three-dimensional threaded grooves formed by the combination of continuous inorganic non-metallic fibers and thermoplastic materials on its surface. Reinforcing ribs are provided for separation, and these ribs are continuous along the longitudinal axis of the composite pipe body and perpendicular to the parallel axis of the three-dimensional threaded grooves. This enhances the rigidity and stiffness of the CBF composite pipe, reduces the bending degree when the pipe is placed horizontally during use, facilitates the connection of the fiber-reinforced composite pipe, and results in neat and well-sealed pipe connection ends.

[0006] This utility model is achieved through the following technical solution:

[0007] A continuous fiber reinforced thermoplastic (CBF) composite pipe includes a composite pipe body. The surface of the composite pipe body has three-dimensional threaded grooves that are perpendicular to the longitudinal axis of the composite pipe body and are continuously distributed in parallel. The three-dimensional threaded grooves are formed by molding and composite of continuous inorganic non-metallic fibers and thermoplastic materials. Reinforcing ribs are formed at the mold closing point. The reinforcing ribs are parallel to the central axis of the composite pipe body and are continuous along the longitudinal axis of the composite pipe body.

[0008] Preferably, based on the above technical solution, the shape of the three-dimensional threaded groove is any one of triangle, trapezoid, or rectangle.

[0009] Preferably, based on the above technical solution, the depth of the three-dimensional threaded groove is 2mm-20mm, and the width of the three-dimensional threaded groove is 5mm-50mm.

[0010] Preferably, based on the above technical solution, the three-dimensional threaded groove is formed by molding and composite of continuous inorganic non-metallic fibers and thermoplastic materials at 150℃-300℃.

[0011] Preferably, based on the above technical solution, the reinforcing rib is one.

[0012] Preferably, based on the above technical solution, the reinforcing ribs are two in number and are symmetrically distributed with the central axis of the composite tube as the axis of symmetry.

[0013] Preferably, based on the above technical solution, the material of the reinforcing rib is the same as the material of the three-dimensional threaded groove.

[0014] Preferably, based on the above technical solution, the continuous inorganic non-metallic fiber is any one of continuous glass fiber, continuous basalt fiber, continuous carbon fiber, and continuous aramid fiber.

[0015] Preferably, based on the above technical solution, the thermoplastic material is any one of PE, PP, and PA.

[0016] Preferably, based on the above technical solution, the three-dimensional threaded groove structure is adapted to the clamping structure.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1) In this technical solution, the surface of the composite tube is a three-dimensional threaded groove made of continuous inorganic non-metallic fibers and thermoplastic materials. The shape of the three-dimensional threaded groove can be triangular, trapezoidal, or rectangular. Reinforcing ribs made of continuous fibers and thermoplastic materials are naturally formed at the mold closing point of the composite molding. The reinforcing ribs are parallel to the central axis of the composite tube. The three-dimensional threaded groove and the reinforcing ribs effectively enhance the rigidity and stiffness of the CBF composite tube and reduce the bending of the CBF composite tube when placed horizontally.

[0019] 2) The three-dimensional threaded groove in the composite pipe body of this technical solution can be well adapted to the clamp structure in the connection structure when connecting CBF composite pipes. That is, it is convenient to install clamps on the pipe ends of CBF composite pipes, improving the convenience of CBF composite pipe connection. At the same time, when it is necessary to cut CBF composite pipes, it can be cut along the three-dimensional threaded groove. After cutting, the pipe end face is flat, which is conducive to pipe end face sealing and connection with other pipes. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model when it is placed horizontally;

[0021] Figure 2 This is a schematic diagram of the vertically placed structure of this utility model;

[0022] Among them: 1-composite pipe body, 2-three-dimensional threaded groove, 3-reinforcing rib. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description of this utility model is provided in conjunction with the embodiments. The illustrative embodiments and descriptions of this utility model are only used to explain this utility model and are not intended to limit this utility model.

[0024] Example 1:

[0025] like Figures 1-2 As shown, a continuous fiber reinforced thermoplastic (CBF) composite pipe includes a composite pipe body 1. The surface of the composite pipe body 1 has three-dimensional threaded grooves 2 that are perpendicular to the longitudinal axis of the composite pipe body 1 and are continuously distributed in parallel. The three-dimensional threaded grooves 2 are formed by molding and composite of continuous inorganic non-metallic fibers and thermoplastic materials. A reinforcing rib 3 is formed at the mold closing point. The reinforcing rib 3 is parallel to the central axis of the composite pipe body 1 and is continuous along the longitudinal axis of the composite pipe body 1.

[0026] Specifically, the shape of the three-dimensional threaded groove 2 can be any one of a triangle, trapezoid, or rectangle. The depth of the three-dimensional threaded groove 2 is 2mm-20mm, and the width is 5mm-50mm. The three-dimensional threaded groove 2 is formed by molding continuous inorganic non-metallic fibers and thermoplastic materials at 150℃-300℃. In this embodiment, the surface of the CBF composite pipe is a three-dimensional threaded groove 2, with multiple three-dimensional threaded grooves 2 distributed parallel to each other. The three-dimensional threaded groove 2 is formed by molding continuous inorganic non-metallic fibers and thermoplastic materials at 150℃-300℃, resulting in high strength. Besides the preferred triangle, trapezoid, and rectangle shapes, other shapes that enhance the overall strength of the CBF composite pipe can also be used for the shape of the three-dimensional threaded groove 2. The depth and width of the three-dimensional threaded groove 2 effectively ensure the rigidity and stiffness of the CBF pipe.

[0027] Based on the above technical solution, the reinforcing rib 3 is one. In the structure of the CBF composite pipe, the reinforcing rib 3 can be two, symmetrically distributed with the central axis of the composite pipe body 1 as the axis of symmetry. The setting of the reinforcing rib 3 on the CBF composite pipe, based on the three-dimensional threaded groove 2, enhances the strength and rigidity of the entire CBF composite pipe. The surface color of the reinforcing rib 3 can also be set to indicate the type of liquid transported inside the CBF composite pipe, facilitating user identification.

[0028] The CBF composite pipes described in this embodiment are all continuous fiber reinforced thermoplastic CBF composite pipes.

[0029] Example 2:

[0030] This embodiment is a further optimization based on embodiment 1, wherein the material of the reinforcing rib 3 is the same as the material of the three-dimensional threaded groove 2. The reinforcing rib 2 is made of continuous fiber and thermoplastic composite, the same material as the three-dimensional threaded groove 2. The reinforcing rib 3 plays a further role in increasing the rigidity of the CBF composite pipe and reducing the bending degree of the CBF composite pipe when placed horizontally.

[0031] The continuous inorganic non-metallic fiber can be any one of continuous glass fiber, continuous basalt fiber, continuous carbon fiber, or continuous aramid fiber. The thermoplastic material can be any one of PE, PP, or PA. The choice of CBF composite pipe material increases the pipe's pressure-bearing capacity and ring stiffness.

[0032] The CBF composite pipe structure described in the above embodiments, such as the three-dimensional threaded groove 2, not only increases the pipe's pressure-bearing capacity and ring stiffness, but also: 1. The three-dimensional threaded groove 2 structure is compatible with the clamping clamp structure. When installing the CBF composite pipe end, the end needs to be fixed. The clamping clamp structure and the three-dimensional threaded groove 2 structure are compatible, and the annular edge of the clamping clamp is inserted into the three-dimensional threaded groove 2, which facilitates pipe installation and further enhances the connection. 2. When the CBF composite pipe needs to be cut, it can be cut along the three-dimensional threaded groove 2, resulting in a flat pipe end face, facilitating pipe end sealing and connection.

[0033] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A continuous fiber reinforced thermoplastic CBF composite pipe, characterized in that: The system includes a composite tube body (1), the surface of which is a three-dimensional threaded groove (2) that is perpendicular to the longitudinal axis of the composite tube body (1) and is continuously distributed in parallel. The three-dimensional threaded groove (2) is formed by molding and composite of continuous inorganic non-metallic fibers and thermoplastic materials. A reinforcing rib (3) is formed at the mold closing point. The reinforcing rib (3) is parallel to the central axis of the composite tube body (1) and continuous along the longitudinal axis of the composite tube body (1). The shape of the three-dimensional threaded groove (2) is any one of triangle, trapezoid, or rectangle. The depth of the three-dimensional threaded groove (2) is 2mm-20mm, and the width of the three-dimensional threaded groove (2) is 5mm-50mm. The three-dimensional threaded groove (2) is formed by molding and composite of continuous inorganic non-metallic fibers and thermoplastic materials at 150℃-300℃. The structure of the three-dimensional threaded groove (2) is compatible with the structure of the clamp.

2. The continuous fiber reinforced thermoplastic CBF composite pipe according to claim 1, characterized in that: The reinforcing rib (3) is one.

3. The continuous fiber reinforced thermoplastic CBF composite pipe according to claim 1, characterized in that: The reinforcing ribs (3) are two in number and are symmetrically distributed with the central axis of the composite tube (1) as the axis of symmetry.

4. The continuous fiber reinforced thermoplastic CBF composite pipe according to claim 3, characterized in that: The reinforcing rib (3) is made of the same material as the three-dimensional threaded groove (2).

5. The continuous fiber reinforced thermoplastic CBF composite pipe according to claim 4, characterized in that: Continuous inorganic non-metallic fibers can be any one of continuous glass fibers, continuous basalt fibers, continuous carbon fibers, or continuous aramid fibers.

6. The continuous fiber reinforced thermoplastic CBF composite pipe according to claim 5, characterized in that: The thermoplastic material can be any one of PE, PP, or PA.

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