Steel-plastic composite pipe convenient to connect

The design of the insert plate and bolt structure solves the problems of troublesome operation and misalignment in the hot-melt connection of steel-plastic composite pipes, realizes a convenient and reliable connection method, and enhances the joint strength.

CN223924118UActive Publication Date: 2026-02-17KANGTAI PLASTIC SCI & TECH GRP CO LTD
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Patent Information

Application Number
CN202520772330.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-23
Publication Date
2026-02-17
Estimated Expiration
2035-04-23

AI Technical Summary

Technical Problem

Existing steel-plastic composite pipes typically require heat fusion for connection, which is cumbersome and prone to misalignment, leading to reduced joint strength.

Method used

The design employs a plug-in plate and bolt structure, utilizing slots and arc grooves in conjunction with bolt tightening to achieve convenient connection of steel-plastic composite pipes, restrict lateral displacement, and avoid the defects of heat fusion connection.

Benefits of technology

This enables convenient installation of steel-plastic composite pipes, improves the reliability of connections and joint strength, and avoids the troubles and misalignment problems caused by hot-melt connections.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of steel-plastic composite pipes, and provides a steel-plastic composite pipe convenient to connect, which comprises a first steel-plastic composite pipe, a second steel-plastic composite pipe and a first connecting plate fixedly connected to one end of the outer side wall of the first steel-plastic composite pipe, and the tops of the multiple mounting blocks are in threaded connection with bolts. The first steel-plastic composite pipe abuts against the second steel-plastic composite pipe by inserting an inserting plate into an inserting groove, then an arc-shaped plate is inserted into an arc-shaped groove by rotating a second connecting plate, then transverse displacement of the first steel-plastic composite pipe and the second steel-plastic composite pipe is limited, and a bolt is rotated to move downwards and penetrate through a through hole, so that the first steel-plastic composite pipe and the second steel-plastic composite pipe are fixed. And the displacement of the arc-shaped plate is limited, at the moment, installation of the first steel-plastic composite pipe and the second steel-plastic composite pipe is completed, and therefore the purpose of conveniently installing the first steel-plastic composite pipe and the second steel-plastic composite pipe is achieved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to steel plastic composite pipe technical field, concretely relates to a steel plastic composite pipe convenient to connect. BACKGROUND

[0002] Steel plastic composite pipe, intermediate layer is steel band layer, and inner and outer layers are plastic layers, and pipe material pressure bearing performance is very good, and unlike aluminium plastic composite pipe, steel plastic composite pipe can produce larger caliber.

[0003] Known Chinese open authorization patent: (application number: CN202223096217.6) discloses a kind of steel plastic composite pipe, including inner layer pipe, steel band layer, outer layer pipe, adhesive layer and combination layer, inner layer pipe, steel band layer, outer layer pipe are bonded by adhesive between them.Inner layer is the PP-R of added ceramic fiber, gives pipe material good high-temperature performance and impact resistance.Aluminum-coated steel band layer has the strength of steel and the heat resistance of aluminum, and the flexibility and strength of pipe material are considered.Outside is the PE-RT of polytetrafluoroethylene coating on outer surface, improves the heat preservation performance and corrosion resistance of pipeline.Port combination layer uses plant fiber to be " sewn " together with inner layer pipe and outer layer pipe each other interlaced, so that the steel band layer of pipe material port position is wrapped, improves the stability of the bonding site between inner layer pipe and steel band layer and outer layer pipe.

[0004] However, in the implementation of the related art, the above-mentioned steel plastic composite pipe has the following problems: the existing steel plastic composite pipe is usually connected by hot melting, but the connection by hot melting is more troublesome, and tools are required to connect it, and the steel plastic composite pipe connected by hot melting is prone to misalignment (misalignment) and reduces the strength of the joint, therefore, a steel plastic composite pipe convenient to connect is proposed. UTILITY MODEL CONTENTS

[0005] The utility model provides a kind of steel plastic composite pipe convenient to connect, solve the problem that the existing steel plastic composite pipe in the related art is usually connected by hot melting, but the connection by hot melting is more troublesome, and tools are required to connect it, and the steel plastic composite pipe connected by hot melting is prone to misalignment (misalignment) and reduces the strength of the joint.

[0006] The technical scheme of the utility model is as follows: a kind of steel plastic composite pipe convenient to connect, comprising: first steel plastic composite pipe and second steel plastic composite pipe;

[0007] First connecting plate fixedly connected to the outer side wall one end of the first steel plastic composite pipe, the outer side wall of the first connecting plate is fixedly installed with multiple installation blocks, the top of multiple installation blocks is screw-threaded with bolt, and the side of multiple installation blocks is provided with arc slot;

[0008] The slot is arranged on one side of the first connecting plate, one end of the outer wall of the second steel-plastic composite pipe is rotationally connected with a second connecting plate, a plug plate is fixedly installed on one side of the second connecting plate, the plug plate is inserted with the slot, a plurality of L-shaped plates are fixedly installed on the outer wall of the second connecting plate, an arc-shaped plate is fixedly installed on one side of the plurality of L-shaped plates, and a through hole is arranged in the arc-shaped plate.

[0009] Preferably, the first steel-plastic composite pipe and the second steel-plastic composite pipe are respectively provided with a metal mesh layer, a steel belt and a metal framework.

[0010] Preferably, the metal mesh layer is located outside the steel belt, and the steel belt is located outside the metal framework.

[0011] Preferably, the outer walls of the first steel-plastic composite pipe and the second steel-plastic composite pipe are coated with a corrosion-resistant coating, and the corrosion-resistant coating is an epoxy resin coating.

[0012] Preferably, the outer walls of the first steel-plastic composite pipe and the second steel-plastic composite pipe are coated with a corrosion-resistant coating, and the corrosion-resistant coating is an epoxy resin coating.

[0013] The working principle and beneficial effects of the utility model are as follows:

[0014] When the first steel-plastic composite pipe and the second steel-plastic composite pipe are installed, the plug plate is inserted into the slot, the first steel-plastic composite pipe and the second steel-plastic composite pipe are in contact, then the arc-shaped plate is inserted into the arc-shaped groove by rotating the second connecting plate, thereby limiting the transverse displacement of the first steel-plastic composite pipe and the second steel-plastic composite pipe, and the bolt is moved downward and passes through the through hole by rotating the bolt, thereby limiting the displacement of the arc-shaped plate. At this time, the installation of the first steel-plastic composite pipe and the second steel-plastic composite pipe is completed, thereby achieving the purpose of facilitating the installation of the first steel-plastic composite pipe and the second steel-plastic composite pipe, and effectively preventing the problems caused by the hot melting connection. BRIEF DESCRIPTION OF DRAWINGS

[0015] The utility model will be further explained in detail in combination with the drawings and specific embodiments.

[0016] Figure 1 The overall three-dimensional structure schematic view of the utility model is shown in the figure.

[0017] Figure 2 The overall side view three-dimensional structure schematic view of the utility model is shown in the figure.

[0018] Figure 3 The first steel-plastic composite pipe and the second steel-plastic composite pipe cross-sectional three-dimensional structure schematic view of the utility model is shown in the figure.

[0019] Figure 4 The sectional view three-dimensional structure schematic diagram of the installation block is provided by the utility model;

[0020] Figure 5 The first steel-plastic composite pipe plane sectional view structure schematic diagram is provided by the utility model;

[0021] In the drawing: 1, first steel-plastic composite pipe;2, second steel-plastic composite pipe;3, first connecting plate;4, installation block;5, bolt;6, arc-shaped slot;7, insertion slot;8, second connecting plate;9, insertion plate;10, L-shaped plate;11, arc-shaped plate;12, through hole;13, metal mesh layer;14, steel belt;15, metal framework;16, anticorrosive coating;17, wear-resistant coating. DETAILED DESCRIPTION

[0022] The technical scheme in the embodiments of the utility model will be apparently and completely described in combination with the embodiments of the utility model, and apparently, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skill in the art without making creative labor are involved in the protection scope of the utility model.

[0023] Please refer to Figure 1 - Figure 5 A steel-plastic composite pipe convenient to connect, comprising: first steel-plastic composite pipe 1 and second steel-plastic composite pipe 2;

[0024] The first connecting plate 3 is fixedly connected to one end of the outer side wall of the first steel-plastic composite pipe 1, a plurality of installation blocks 4 are fixedly installed on the outer side wall of the first connecting plate 3, a plurality of bolts 5 are threadedly connected to the top of the plurality of installation blocks 4, and an arc-shaped slot 6 is formed in one side of the plurality of installation blocks 4.

[0025] The insertion slot 7 is formed in one side of the first connecting plate 3, the second connecting plate 8 is rotatably connected to one end of the outer side wall of the second steel-plastic composite pipe 2, the insertion plate 9 is fixedly installed on one side of the second connecting plate 8, the insertion plate 9 is inserted between the insertion slot 7, a plurality of L-shaped plates 10 are fixedly installed on the outer side wall of the second connecting plate 8, the arc-shaped plate 11 is fixedly installed on one side of the plurality of L-shaped plates 10, and the through hole 12 is formed in the arc-shaped plate 11.

[0026] The utility model provides technical scheme is, when installing first steel -plastic composite pipe 1 and second steel -plastic composite pipe 2, through the plug -in board 9 is inserted into the slot 7, make first steel -plastic composite pipe 1 and second steel -plastic composite pipe 2 and then through the rotation second connecting plate 8, make the arc plate 11 is inserted into the arc slot 6, and then the transverse displacement of first steel -plastic composite pipe 1 and second steel -plastic composite pipe 2 is limited to, and through the rotation bolt 5, make bolt 5 moves down and passes through the through -hole 12, and the arc plate 11 displacement is limited, at this moment, the installation of first steel -plastic composite pipe 1 and second steel -plastic composite pipe 2 is completed, thereby the purpose that first steel -plastic composite pipe 1 and second steel -plastic composite pipe 2 are installed conveniently is realized, and the problem that appears when connecting through hot melt is effectively prevented.

[0027] Further, the first steel-plastic composite pipe 1 and the second steel-plastic composite pipe 2 are respectively provided with a metal mesh layer 13, a steel belt 14 and a metal framework 15.

[0028] Specifically, the metal mesh layer 13, the steel belt 14 and the metal framework 15 effectively improve the pressure resistance of the first steel-plastic composite pipe 1 and the second steel-plastic composite pipe 2.

[0029] Further, the outer walls of the first steel-plastic composite pipe 1 and the second steel-plastic composite pipe 2 are respectively coated with a corrosion-resistant coating 16, and the outer walls of the first steel-plastic composite pipe 1 and the second steel-plastic composite pipe 2 are respectively coated with a wear-resistant coating 17.

[0030] Specifically, the corrosion-resistant coating 16 is used to protect the first steel-plastic composite pipe 1 and the second steel-plastic composite pipe 2 from corrosion and prolong the service life thereof, and the wear-resistant coating 17 is used to improve the wear resistance of the first steel-plastic composite pipe 1 and the second steel-plastic composite pipe 2 and reduce pipeline damage caused by long-time friction.

[0031] The utility model works as follows: when installing the first steel-plastic composite pipe 1 and the second steel-plastic composite pipe 2, the plug-in board 9 is inserted into the slot 7, the first steel-plastic composite pipe 1 and the second steel-plastic composite pipe 2 are in contact, then the arc plate 11 is inserted into the arc slot 6 by rotating the second connecting plate 8, the transverse displacement of the first steel-plastic composite pipe 1 and the second steel-plastic composite pipe 2 is limited, the bolt 5 is moved downward and passes through the through-hole 12 by rotating the bolt 5, and the displacement of the arc plate 11 is limited, at this moment, the installation of the first steel-plastic composite pipe 1 and the second steel-plastic composite pipe 2 is completed, thereby the purpose that the first steel-plastic composite pipe 1 and the second steel-plastic composite pipe 2 are installed conveniently is realized, and the problem that appears when connecting through hot melt is effectively prevented.

[0032] The above merely describes the preferred embodiments of the present application, and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A steel-plastic composite pipe for easy connection, characterized by Include: The first steel plastic composite pipe (1) and the second steel plastic composite pipe (2); The first connecting plate (3) is fixedly connected to one end of the outer side wall of the first steel plastic composite pipe (1), the outer side wall of the first connecting plate (3) is fixedly installed with a plurality of mounting blocks (4), the top of the plurality of mounting blocks (4) is threadedly connected with a bolt (5), and one side of the plurality of mounting blocks (4) is provided with an arc-shaped groove (6); The insertion slot (7) is arranged on one side of the first connecting plate (3), one end of the outer side wall of the second steel plastic composite pipe (2) is rotatably connected with a second connecting plate (8), the second connecting plate (8) is fixedly installed with an insertion plate (9) on one side, the insertion plate (9) is inserted between the insertion slot (7), the outer side wall of the second connecting plate (8) is fixedly installed with a plurality of L-shaped plates (10), one side of the plurality of L-shaped plates (10) is fixedly installed with an arc-shaped plate (11), and a through hole (12) is arranged in the arc-shaped plate (11).

2. A steel-plastic composite pipe according to claim 1, characterized in that: The first steel plastic composite pipe (1) and the second steel plastic composite pipe (2) are respectively provided with a metal mesh layer (13), a steel belt (14) and a metal framework (15).

3. A steel-plastic composite pipe for easy connection according to claim 2, characterized in that: The metal mesh layer (13) is located on the outer side of the steel belt (14), and the steel belt (14) is located on the outer side of the metal framework (15).

4. A steel-plastic composite pipe according to claim 1, wherein: The outer side wall of the first steel plastic composite pipe (1) and the second steel plastic composite pipe (2) is coated with a corrosion-resistant coating (16), and the corrosion-resistant coating (16) is specifically an epoxy resin coating.

5. A steel-plastic composite pipe for easy connection according to claim 4, characterized in that: The outer side wall of the first steel plastic composite pipe (1) and the second steel plastic composite pipe (2) is coated with a corrosion-resistant coating (16), and the corrosion-resistant coating (16) is specifically an epoxy resin coating. The outer side wall of the first steel plastic composite pipe (1) and the second steel plastic composite pipe (2) is coated with a corrosion-resistant coating (16), and the corrosion-resistant coating (16) is specifically an epoxy resin coating.

Citation Information

Patent Citations

  • Steel-plastic composite pipe

    CN219345746U