Composite pipe connector

Abstract

The utility model relates to the technical field of thermoplastic composite pipe connection, and discloses a composite pipe connector which comprises a composite pipe body and universal connector bodies connected to the two ends of the composite pipe body in an electric smelting mode. The universal connector body comprises a large connector and a small connector which are integrally formed through injection molding, and electric heating fuses are arranged in the large connector and the small connector; through cooperation between the composite pipe body and the universal connector body, the universal connector body is used for improving the adaptability of connection of the composite pipe body, the universal connector body can be suitable for connection of pipelines of different specifications, the pipeline connection cost is reduced, meanwhile, the connection strength of the composite pipe body is improved, and by increasing the thickness of the universal connector body, the service life of the universal connector body is prolonged. The tensile property and the compression resistance of the connecting end of the composite pipe body are further improved, overall installation is convenient and fast, the construction difficulty and the time cost are reduced, and practicability is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to thermoplastic composite pipe connecting technical field, concretely is a kind of composite pipe connector. BACKGROUND

[0002] Continuous non-metal winding reinforced thermoplastic engineering plastic pipeline system, after being fused and wound by hot melt winding machine to continuous non-metal prepreg tape, it has the characteristics of high heat resistance, high pressure resistance, light weight, non-corrosion, long life, etc., on the basis of greatly improving product quality and expanding product use, relying on the high tensile strength of flexible non-metal prepreg tape to greatly reduce the material consumption of manufacturing pipeline, realize the low-cost production of continuous non-metal reinforced thermoplastic engineering pipeline system, it is the direction of future pipeline large-caliber and high-pressure development;

[0003] However, the continuous non-metal winding reinforced thermoplastic composite pipe in the prior art generally adopts two ways of electric melting pipe fitting connection and metal clamping connection, and the existing composite pipe connection technology has the following problems:

[0004] 1. The traditional composite pipe flange connection has poor adaptability, resulting in high cost.

[0005] 2. The sealing stability of hot melt butt joint is unstable, and leakage is easily caused by size error.

[0006] Therefore, we need to propose a composite pipe connector. UTILITY MODEL CONTENTS

[0007] The utility model aims at providing a composite pipe connector, which innovates the structure of the connector to enable the connector to be tightly connected with the composite pipe after electric melting heating, and to be connected by flange, increase the adaptability, optimize the thickness of the connector, improve the strength of the connector, and thus improve the tensile and compressive properties, reduce the construction difficulty of the composite pipe, to solve the problems in the above background technology.

[0008] To achieve the above object, the utility model provides the following technical scheme: a composite pipe connector, comprising:

[0009] A composite pipe body and a universal connector body electrically fused at both ends of the composite pipe body;

[0010] The universal connector body includes a large connector and a small connector integrally injection molded, and electric heating fuses are arranged in the large connector and the small connector;

[0011] The composite pipe body is sequentially provided with a composite pipe inner layer, a fiber reinforced layer and a composite pipe outer layer from inside to outside, one end of the large connector opposite the small connector is provided with a water sealing line, and the hot melt butt joint part is arranged at the splicing part of the two groups of composite pipe inner layers connected by hot melting.

[0012] Preferably, the length of the fiber reinforced layer is the same as the length of the outer layer of the composite pipe, and the length of the fiber reinforced layer is less than the length of the inner layer of the composite pipe.

[0013] Preferably, the inner diameter of the large connector is the same as the outer diameter of the inner layer of the composite pipe, the inner diameter of the small connector is the same as the outer diameter of the outer layer of the composite pipe, and the outer diameter of the large connector is larger than the outer diameter of the small connector.

[0014] Preferably, the flange connector mainly comprises two groups of flanges and a plurality of connecting bolts, the two groups of flanges are sleeved on both ends of the two groups of general connector bodies, and the two groups of flanges are fixedly connected through the plurality of connecting bolts.

[0015] Compared with the prior art, the utility model has the beneficial effects that:

[0016] The utility model discloses a composite pipe body and general connector body cooperation, using general connector body improves the adaptability of composite pipe body connection, can be applicable to different specifications of pipeline connection, reduces pipeline connection cost, improves the strength of composite pipe body connection simultaneously, further improves the tensile and compression performance of composite pipe body connection end through increasing the thickness of general connector body, overall installation is convenient, reduces construction difficulty and time cost, improves practicality. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the composite pipe body structure schematic diagram of the utility model;

[0018] Figure 2 It is the composite pipe electric melting connection structure schematic diagram of the utility model;

[0019] Figure 3 It is the composite pipe electric melting connection section structure schematic diagram of the utility model;

[0020] Figure 4 It is the general connector body structure schematic diagram of the utility model;

[0021] Figure 5 It is the composite pipe flange connection structure schematic diagram of the utility model;

[0022] Figure 6 It is the composite pipe flange connection section structure schematic diagram of the utility model.

[0023] In the figure: 1, composite pipe body; 11, composite pipe inner layer; 12, fiber reinforced layer; 13, composite pipe outer layer; 14, hot melt butt joint; 2, general connector body; 21, large connector; 22, small connector; 23, electric hot melt wire; 3, flange connector; 31, flange; 32, connecting bolt; 4, water sealing line. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0025] Embodiment 1

[0026] Please refer to Figures 1-4 The utility model provides a technical scheme: a composite pipe connector, comprising:

[0027] The composite pipe body 1 and the general connector body 2 electrically fused at both ends of the composite pipe body 1;

[0028] The general connector body 2 comprises integrally injection-molded large connector 21 and small connector 22, and the electric hot melt wire 23 is arranged in the large connector 21 and the small connector 22;

[0029] The composite pipe body 1 is sequentially provided with the composite pipe inner layer 11, the fiber reinforced layer 12 and the composite pipe outer layer 13 from inside to outside, one end of the large connector 21 opposite the small connector 22 is provided with the water sealing line 4, the hot melt butt joint 14 is arranged at the splicing position of the two groups of composite pipe inner layers 11 through hot melt connection, and the general connector body 2 is injection molded by removing the oxidation layer of the composite pipe outer layer 13 of the outer wall of the composite pipe body 1, stripping the fiber reinforced layer 12 and embedding the electric hot melt wire 23, so that different specifications of composite pipes can be adapted.

[0030] The length of the fiber reinforced layer 12 is the same as the length of the composite pipe outer layer 13, and the length of the fiber reinforced layer 12 is less than the length of the composite pipe inner layer 11.

[0031] The inner diameter of the large connector 21 is the same as the outer diameter of the composite pipe inner layer 11, the inner diameter of the small connector 22 is the same as the outer diameter of the composite pipe outer layer 13, the outer diameter of the large connector 21 is greater than the outer diameter of the small connector 22, the size of the general connector body 2 is designed according to the pressure grade, and the inner diameter of the general connector body 2 matches the outer diameter of the composite pipe body 1 after the composite pipe outer layer 13 and the fiber reinforced layer 12 are stripped.

[0032] In the production process of the composite pipe, firstly, the oxide layer on the outer wall of the composite pipe body 1 is removed, and then the composite pipe outer layer 13 and the fiber reinforced layer 12 at the port of the composite pipe body 1 are stripped according to the preset length (the axial length to be stripped = the designed pressure of the pipe * the outer diameter of the pipe / 2 times the tensile strength of the material), thereby reserving the installation space of the universal connector body 2, selecting the injection mold of the universal connector body 2 according to the specification of the composite pipe body 1, embedding the hot melting wire during injection, and the universal connector body 2 embedded with the electric hot melting wire 23 is as shown in Figure 3 The thickness of the large connector 21 is increased by 3-5mm below DN200 and increased by 5-20mm above DN200 (DN is diameter);

[0033] As shown in Figure 3 When the composite pipe body 1 needs to be hot-melt connected, the water sealing line 4 on the large connector 21 is stripped, and the composite pipe inner layer 11 is heated to 200-220 DEG C by using a hot-melt machine for pressure welding.

[0034] Embodiment 2

[0035] The composite pipe body 1 and the implementation principle and the use effect that can be achieved are the same, and the same content is not repeated, and the difference from embodiment 1 is that, as shown in Figures 5-6 Two groups of flanges 31 are respectively sleeved outside the small connectors 22 of the two groups of universal connector bodies 2, and the flanges 31 abut against the large connectors 21, and then the two groups of flanges 31 are fixed by using a plurality of connecting bolts 32, and at the same time, the two groups of flanges 31 can be fused after being sleeved on the small connectors 22 in advance, further enhancing the stability of the connection between the flanges 31 and the universal connector bodies 2

[0036] It also includes a flange connecting piece 3, which mainly consists of two groups of flanges 31 and a plurality of connecting bolts 32, the two groups of flanges 31 are respectively sleeved at both ends of the two groups of universal connector bodies 2, and the two groups of flanges 31 are fixedly connected through the plurality of connecting bolts 32, the large and small heads of the universal connector body 2 match the national standard flanges, and the adaptability is strong, which significantly improves the tensile strength and sealing performance, and is suitable for complex pipe systems.

[0037] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A composite pipe joint, characterized by comprising: The utility model relates to a composite pipe and a universal connector, and belongs to the field of pipe connection. The utility model discloses a composite pipe body (1) and the universal connector body (2) of electrically fused connection in the both ends of composite pipe body (1); The universal connector body (2) includes integrally injection molded large connector (21) and small connector (22), and the electric heating fuse (23) is arranged in large connector (21) and small connector (22); The composite pipe body (1) is sequentially provided with composite pipe inner layer (11), fiber reinforced layer (12) and composite pipe outer layer (13) from inside to outside, and the large connector (21) is provided with water sealing line (4) relative to one end of small connector (22), and the hot melt butt joint (14) is arranged relative to the splicing of two groups of composite pipe inner layer (11) through hot melt connection.

2. A composite pipe joint according to claim 1, characterised in that: The length of fiber reinforced layer (12) is same with the length of composite pipe outer layer (13), and the length of fiber reinforced layer (12) is less than the length of composite pipe inner layer (11).

3. A composite pipe joint according to claim 2, wherein: The inner diameter of large connector (21) is same with the outer diameter of composite pipe inner layer (11), the inner diameter of small connector (22) is same with the outer diameter of composite pipe outer layer (13), and the outer diameter of large connector (21) is greater than the outer diameter of small connector (22).

4. The composite pipe coupling of claim 1, wherein: The utility model further includes flange connecting piece (3), which mainly consists of two groups of flange plates (31) and multiple groups of connecting bolts (32), two groups of flange plates (31) are respectively sleeved in both ends of two groups of universal connector bodies (2), and two groups of flange plates (31) are fixedly connected through multiple groups of connecting bolts (32).

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