CN210890437U - Steel-plastic composite pipe convenient to connect - Google Patents

Abstract

The utility model belongs to the technical field of compound pipe, concretely relates to compound pipe is moulded to steel convenient to connect, include: the pipe comprises pipe bodies, wherein each pipe body comprises an inner layer, an outer layer and an intermediate layer, the inner layer and the outer layer are compounded through the intermediate layer, one end of each pipe body is provided with a joint, the other end of each pipe body is provided with a connecting piece embedded into the joint, and the two adjacent pipe bodies are detachably connected through fasteners after being embedded into the joints through the connecting pieces; the end surface of the middle layer of the pipe body, which is positioned at one end of the connecting piece, is concave inwards, and the end surfaces of the inner layer and the outer layer are suitable for forming a connecting cavity; the connecting piece comprises a first connecting end embedded into the connecting cavity and a second connecting end protruding out of the end face of the tube body, and the first connecting end and the second connecting end sequentially form two tube bodies with different diameters. The steel-plastic composite pipe of the utility model has the advantages of quick and convenient connection, and simultaneously improves the connection strength and the connection sealing property between the pipe bodies.

Description

Steel-plastic composite pipe convenient to connect

Technical Field

The utility model relates to a compound pipeline technical field, concretely relates to compound pipe is moulded to steel convenient to connect.

Background

At present, the end face of plastic pipe with full plastic solid wall is milled flat, the heating plate is placed between the end faces of two pipes, a certain force is applied to the two pipes relatively to melt the end faces of the pipes, the heating plate is removed, the two melted end faces are butted and applied with a certain relative force, the two pipes are tightly fused together, the plastic pipe can be connected after cooling, and the joint can realize the same bearing force as other parts of the pipes.

However, the steel-plastic composite pipe is a plastic-steel composite pipe capable of bearing higher pressure, and because the steel pipe sandwiched in the middle cannot be connected by hot melting like an all-plastic solid-wall pipe, the difficulty in connecting adjacent plastic-steel composite pipes is higher, and the bearing capacity of the joint is relatively low.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a compound pipe is moulded to steel convenient to connect to carry and reduce the connection degree of difficulty, improve joint strength, increase the bearing capacity at connection position.

In order to solve the technical problem, the utility model provides a compound pipe is moulded to steel convenient to connect: the pipe comprises pipe bodies, wherein each pipe body comprises an inner layer, an outer layer and an intermediate layer, the inner layer and the outer layer are compounded through the intermediate layer, one end of each pipe body is provided with a joint, the other end of each pipe body is provided with a connecting piece embedded into the joint, and the two adjacent pipe bodies are detachably connected through fasteners after being embedded into the joints through the connecting pieces;

the end face of the middle layer of the pipe body, which is positioned at one end of the connecting piece, is inwards concave to the end faces of the inner layer and the outer layer, and is suitable for forming a connecting cavity;

the connecting piece comprises a first connecting end embedded into the connecting cavity and a second connecting end protruding out of the end face of the tube body, and the first connecting end and the second connecting end sequentially form two tube bodies with different diameters.

Wherein, the joint, the connecting piece and the pipe body are integrally formed through injection molding.

The joint comprises a cylinder and a connecting surface arranged at one end of the cylinder;

the inner surface of the barrel is abutted to the outer surface of the outer layer, the connecting surface is abutted to the end face of the pipe body, and one end, close to the central axis of the pipe body, of the connecting surface and the inner surface of the inner layer are on the same circumferential surface.

Wherein, be provided with the constant head tank with second link looks adaptation on connecting the face.

The outer circle of the second connecting end is provided with a positioning hole;

and the outer circle of the connecting surface is provided with a threaded hole matched with the positioning hole.

And a metal mesh layer is arranged on the outer circular surface of the second connecting end.

Wherein the intermediate layer is a metal framework;

the inner layer and the outer layer are made of high polymer materials.

The beneficial effects of the utility model are that, the utility model discloses a compound pipe is moulded to steel through connecting with the integrative injection moulding of connecting piece and body, has at first ensured the joint strength of joint and connecting piece and body, then has utilized the connecting piece and connect to form excessive connection, and the second link outside of connecting piece is provided with and imbeds through fastener and articulate in the joint behind the metal mesh layer, connects simple and conveniently to improve the bearing capacity at connection position greatly.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a cross-sectional view of the present invention.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for purposes of illustration and explanation only and are not intended to limit the invention.

It should be noted that these drawings are simplified schematic views, and the basic structure of the present invention is described only in a schematic manner, and therefore, only the configuration related to the present invention is shown.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1, this embodiment 1 provides a steel-plastic composite pipe which is easy to connect: the pipe body 10 comprises an inner layer 11, an outer layer 13 and an intermediate layer 12, wherein the inner layer 11 and the outer layer 13 are compounded through the intermediate layer 12, the intermediate layer 12 is a metal framework, the inner layer 11 and the outer layer 13 are made of high polymer materials, the metal framework of the intermediate layer is heated, and then the inner layer 11 and the outer layer 13 are subjected to thermal coating, so that the pipe has the characteristics of corrosion resistance, wear resistance and rust resistance;

the connecting structure is characterized in that a connector 20 is arranged at one end of each pipe body 10, a connecting piece 30 embedded into the connector 20 is arranged at the other end of each pipe body, two adjacent pipe bodies are embedded into the connector 20 through the connecting pieces 30 and then are detachably connected through fasteners, the connecting pieces 30 are embedded into the connector 20, firstly, the connection tightness and the sealing performance are improved, then, the pipe bodies are connected through the fasteners, the disassembly is convenient, the fasteners can be screws or positioning pins, and the connecting structure is particularly selected according to use requirements and is simple and convenient to connect;

the end surface of the middle layer 12 of the pipe body 10 at one end of the connecting piece 30 is concave to the end surfaces of the inner layer 11 and the outer layer 13, and is suitable for forming a connecting cavity 4;

the connecting piece 30 comprises a first connecting end 31 embedded in the connecting cavity 4 and a second connecting end 32 protruding out of the end face of the pipe body 10, and the first connecting end 31 and the second connecting end 32 sequentially form two cylinder bodies with different diameters, so that the function of excessive connection is achieved, and meanwhile, the connecting strength is improved.

Further, the joint 20 and the connecting piece 30 are integrally formed with the pipe body 10 through injection molding, and are tightly connected and high in strength.

Further, the joint 20 includes a cylinder 21 and a connecting surface 22 disposed at one end of the cylinder 21; the inner surface of the cylinder 21 is abutted with the outer surface of the outer layer 11, the connecting surface 22 is abutted with the end face of the pipe body 10, and one end, close to the central axis of the pipe body 10, of the connecting surface 22 and the inner surface of the inner layer 13 are on the same circumferential surface, so that the joint 20 and the pipe body 10 are ensured to be on the same axis, and the defect that the strength of the pipe body in the same circumference is different is avoided.

Further, be provided with the constant head tank 221 with second link 32 looks adaptation on connecting face 22, in second link 32 embedding constant head tank 221 realized the plug-in connection, had the connection position accuracy, connect quick reliable characteristics, consequently, simplified the connection work of compound pipe.

Further, a positioning hole 321 is formed in the outer circle of the second connecting end 32; the excircle of the connecting surface 22 is provided with a threaded hole matched with the positioning hole, so that quick connection is realized.

Further, the outer circular surface of the second connecting end 32 is provided with a metal mesh layer 6, so that the bearing capacity of the connecting part is improved.

In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims (7)

1. A steel-plastic composite pipe for easy joining, comprising: the body, the body includes inlayer, skin and intermediate level, the inlayer with the skin passes through the intermediate level is compound, its characterized in that:

one end of each pipe body is provided with a joint, the other end of each pipe body is provided with a connecting piece embedded into the joint, and the adjacent two pipe bodies are detachably connected by using a fastening piece after being embedded into the joints through the connecting pieces;

the end face of the middle layer of the pipe body, which is positioned at one end of the connecting piece, is inwards concave to the end faces of the inner layer and the outer layer, and is suitable for forming a connecting cavity;

the connecting piece comprises a first connecting end embedded into the connecting cavity and a second connecting end protruding out of the end face of the tube body, and the first connecting end and the second connecting end sequentially form two tube bodies with different diameters.

2. The easy-to-connect steel-plastic composite pipe according to claim 1, wherein:

the joint and the connecting piece are integrally formed with the pipe body through injection molding.

3. The easy-to-connect steel-plastic composite pipe according to claim 1, wherein:

the joint comprises a cylinder body and a connecting surface arranged at one end of the cylinder body;

the inner surface of the barrel is abutted to the outer surface of the outer layer, the connecting surface is abutted to the end face of the pipe body, and one end, close to the central axis of the pipe body, of the connecting surface and the inner surface of the inner layer are on the same circumferential surface.

4. The easy-to-connect steel-plastic composite pipe according to claim 3, wherein:

and a positioning groove matched with the second connecting end is arranged on the connecting surface.

5. The easy-to-connect steel-plastic composite pipe according to claim 3, wherein:

the outer circle of the second connecting end is provided with a positioning hole;

and the outer circle of the connecting surface is provided with a threaded hole matched with the positioning hole.

6. The easy-to-connect steel-plastic composite pipe according to claim 1, wherein:

and a metal mesh layer is arranged on the outer circular surface of the second connecting end.

7. The easy-to-connect steel-plastic composite pipe according to claim 1, wherein:

the middle layer is a metal framework;

the inner layer and the outer layer are made of high polymer materials.

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