Continuous nonmetal winding reinforced thermoplastic composite pipe connector structure

Abstract

The utility model discloses a continuous non-metal winding reinforced thermoplastic composite pipe connector structure, which is characterized in that a part of pipe inner layer is stripped from the inner wall of the end of a composite pipe, and a plurality of through holes are formed in the stripped position; the connector wraps the inner wall and the outer wall of the end of the composite pipe and is divided into a connector inner layer and a connector outer layer by the end of the composite pipe, and the connector inner layer and the connector outer layer are connected into a whole at the end and the through hole. The utility model has the advantages of simple structure, strong plasticity, convenience in manufacture and convenience and quickness in installation, and meets the safety requirement of a pipeline system.

Description

Technical Field

[0001] This utility model belongs to the technical field of continuous glass fiber reinforced thermoplastic composite pipe, and particularly relates to a connector structure for a continuous non-metallic wound reinforced thermoplastic composite pipe. Background Technology

[0002] Continuous fiberglass reinforced thermoplastic composite pipes possess characteristics such as high heat resistance, high pressure resistance, light weight, non-corrosiveness, long service life, recyclability, and designability, making them a future direction for pipeline development. However, due to the difficulty in manufacturing composite pipe connection interfaces, currently available continuous fiber reinforced plastic composite pipes generally use pure plastic or metal fittings, which cannot meet the high-pressure requirements of pipeline systems and are relatively expensive. Utility Model Content

[0003] To address the aforementioned problems, this utility model provides a continuous non-metallic wound reinforced thermoplastic composite pipe connector structure.

[0004] This utility model discloses a continuous non-metallic wound reinforced thermoplastic composite pipe connector structure. Part of the inner layer of the composite pipe is peeled off from the inner wall of the end of the composite pipe, and several through holes are formed at the peeled-off location. The connector wraps around the inner and outer walls of the end of the composite pipe and is divided into an inner layer and an outer layer by the end of the composite pipe. The inner layer and the outer layer are connected into a whole at the end and through hole positions.

[0005] Furthermore, the connector is integrally injection molded.

[0006] Furthermore, the inner diameter of the connector's inner layer is the same as the inner diameter of the composite pipe, and the outer diameter of the connector's inner layer is the same as the inner diameter of the composite pipe after part of the inner layer has been removed; the inner diameter of the connector's outer layer is the same as the outer diameter of the composite pipe, and the outer surface of the connector's outer layer is stepped.

[0007] Furthermore, the outer oxide layer on the end of the composite pipe needs to be removed.

[0008] Furthermore, through holes are evenly distributed around the ends of the composite pipe, with 3-6 groups of holes, each group containing 2-3 holes.

[0009] Furthermore, half the thickness of the inner layer of the composite pipe is removed, and the removal length is greater than 2cm.

[0010] Furthermore, the end of the connector is a thermowelded joint.

[0011] Furthermore, a flange joint baffle is provided on the outer side of the end of the connector to limit the flange joint when the two composite pipes are connected.

[0012] The beneficial technical effects of this utility model are as follows:

[0013] This utility model has a simple structure, high plasticity, is easy to manufacture and install, and meets the safety requirements of pipeline systems. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the continuous non-metallic wound reinforced thermoplastic composite pipe connector of this utility model.

[0015] Figure 2 This is a schematic diagram of the installation of the continuous non-metallic wound reinforced thermoplastic composite pipe connector structure of this utility model.

[0016] In the diagram: 1-Composite pipe (11-Outer layer of pipe; 12-Inner layer of pipe, with a reinforcing core layer between the inner and outer layers); 2-Connector (21-Outer layer of connector; 22-Inner layer of connector); 3-Through hole; 4-Hot-melt weld joint; 5-Flange joint. Detailed Implementation

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and specific implementation methods.

[0018] This utility model discloses a continuous non-metallic wound reinforced thermoplastic composite pipe connector structure, as follows: Figure 1 As shown, part of the inner layer 12 of the composite pipe 1 is removed from the inner wall of the end, and several through holes 3 are formed at the removal location. The connector 2 wraps around the inner and outer walls of the end of the composite pipe 1 and is divided into an inner connector layer 22 and an outer connector layer 21 by the end of the composite pipe 1. The inner connector layer 22 and the outer connector layer 21 are connected as a whole at the end and the through holes 3.

[0019] Furthermore, connector 2 is integrally injection molded.

[0020] Furthermore, the inner diameter of the inner layer 22 of the connector 2 is the same as the inner diameter of the composite pipe 1, and the outer diameter of the inner layer 22 is the same as the inner diameter of the composite pipe 1 after removing part of the inner layer 12; the inner diameter of the outer layer 21 of the connector 2 is the same as the outer diameter of the composite pipe 1, and the outer surface of the outer layer 21 is stepped.

[0021] Furthermore, the outer oxide layer 11 of the composite pipe 1 needs to be removed. This is because during the injection molding of the connector 2, the composite pipe 1 and connector 2 are firmly bonded, providing tensile strength. Combined with the thickness of connector 2, this increases the compressive strength of the connection.

[0022] Furthermore, through holes 3 are evenly distributed around the end of the composite tube 1, with 3-6 groups of 2-3 holes in each group. Their function is to fill the through holes 3 with thermoplastic plastic during the injection molding of the connector 2, forming the inner and outer layers of the connector 2 with the composite tube 1 as a single unit, thus providing stability and tensile strength.

[0023] Furthermore, half the thickness of the inner layer 12 of the composite pipe 1 is removed, with a removal length greater than 2cm, covering the evenly distributed through holes 3 at the end of the composite pipe. The purpose is to ensure that the inner and outer walls of the connector 2 are firmly bonded to the composite pipe 1 during injection molding, forming an integral whole with the plastic inside the through holes 3, thus enhancing tensile strength.

[0024] Furthermore, the end of connector 2 is a thermoplastic weld joint 4. During thermoplastic welding, the sealing line needs to be removed, and the oxide layer of the thermoplastic weld joint 4 needs to be removed as well.

[0025] Furthermore, a flange joint baffle is provided on the outer side of the end of the connector 2, which is used to limit the flange joint 5 when the two composite pipes 1 are connected.

[0026] The manufacturing and installation process of the connector of this utility model:

[0027] First, holes are drilled in the composite pipe, the outer oxide layer is removed, and part of the inner layer is peeled off. The pipe is then placed in an injection mold to injection mold the connector. During the hot-melt welding of the composite pipe... Figure 2 As shown, a flange joint is used, that is, a combined semi-circular flange is fitted onto the stop, or the flange is pre-fitted onto the composite pipe and then the connector is injection molded, and the two pipes are connected to the flange. If a heat fusion connection is used, the sealing line is removed, and the oxide layer of the heat fusion weld joint is removed, and then the joint is heat fused together.

[0028] It should be noted that in this invention, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A continuous non-metallic wound reinforced thermoplastic composite pipe connector structure, characterized in that, A portion of the inner layer (12) of the composite pipe (1) is peeled off from the inner wall of the end, and several through holes (3) are formed by drilling holes at the peeling location; the connector (2) wraps around the inner and outer walls of the end of the composite pipe (1) and is divided into an inner layer (22) and an outer layer (21) by the end of the composite pipe (1). The inner layer (22) and the outer layer (21) are connected as a whole at the end and through holes (3).

2. The continuous non-metallic wound reinforced thermoplastic composite pipe connector structure according to claim 1, characterized in that, The connector (2) is integrally injection molded.

3. The continuous non-metallic wound reinforced thermoplastic composite pipe connector structure according to claim 1, characterized in that, The inner diameter of the inner layer (22) of the connector (2) is the same as the inner diameter of the composite pipe (1), and the outer diameter of the inner layer (22) is the same as the inner diameter of the composite pipe (1) after removing part of the inner layer (12); the inner diameter of the outer layer (21) of the connector (2) is the same as the outer diameter of the composite pipe (1), and the outer surface of the outer layer (21) is stepped.

4. The continuous non-metallic wound reinforced thermoplastic composite pipe connector structure according to claim 1, characterized in that, The outer oxide layer of the end of the composite pipe (1) needs to be removed.

5. The continuous non-metallic wound reinforced thermoplastic composite pipe connector structure according to claim 1, characterized in that, The through holes (3) are evenly distributed around the end of the composite pipe (1), and there are 3-6 groups, with 2-3 holes in each group.

6. The continuous non-metallic wound reinforced thermoplastic composite pipe connector structure according to claim 1, characterized in that, The inner layer (12) of the composite pipe (1) has half of its thickness removed, and the removal length is greater than 2 cm.

7. The continuous non-metallic wound reinforced thermoplastic composite pipe connector structure according to claim 1, characterized in that, The end of the connector (2) is a thermowelded joint (4).

8. The continuous non-metallic wound reinforced thermoplastic composite pipe connector structure according to claim 1, characterized in that, The connector (2) is provided with a flange joint baffle on the outer side of its end, which is used to limit the flange joint (5) when the two composite pipes (1) are connected.

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