PE water supply reinforced pipe fitting

Abstract

The utility model relates to a PE water supply reinforced pipe fitting, which comprises a pipe fitting plastic body, a heating wire and a steel skeleton structure layer, the heating wire is spirally arranged on the inner wall of the pipe fitting, the steel skeleton structure layer is wound on the outer side of the heating wire, the steel skeleton structure layer is a latticed steel belt with holes, a plurality of positioning nails are arranged in the steel skeleton structure layer, and the positioning nails are arranged on the inner wall of the pipe fitting. At least one binding post is arranged on the pipe fitting plastic body, and the electric heating wire is connected with the binding post. The PE water supply reinforced pipe fitting has the advantages of high strength, high rigidity and low cost of steel, the maximum designed pressure can reach 3.5 MPa, and ultrahigh pressure water conveying can be met.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic pipe water supply, in particular to a PE water supply enhanced pipe fitting. Background Art

[0002] PE plastic pipes are widely used in municipal, chemical, civil water and gas transmission fields due to their light weight, convenient transportation and construction, and corrosion resistance. In ultra-high pressure water supply, plastic pipes can be improved in compressive strength through continuous winding of steel wire mesh, but pipe fittings are difficult to produce using this process because they are injection molding processes. Utility Model Content

[0003] In order to solve the technical problems existing in the prior art, the utility model provides a PE water supply reinforcement pipe fitting.

[0004] To achieve the above purpose, the technical solution of the utility model is as follows:

[0005] A PE water supply enhanced pipe fitting comprises a pipe fitting plastic body, an electric heating wire and a steel skeleton structure layer. The electric heating wire is spirally arranged on the inner wall of the pipe fitting, and the steel skeleton structure layer is wound around the outside of the electric heating wire. The steel skeleton structure layer is a grid-like steel belt with holes. A plurality of positioning nails are arranged in the steel skeleton structure layer. At least one terminal is arranged on the pipe fitting plastic body, and the electric heating wire is connected to the terminal.

[0006] As a preferred technical solution, the thickness of the steel strip is 0.2 mm to 0.5 mm, and the hole diameter is 0.5 mm to 2.5 mm.

[0007] As a preferred technical solution, the net distance between the inner side of the steel belt of the steel skeleton structure layer and the heating wire is not less than 4.8 mm, and the distance between the outer side of the steel belt and the outer wall of the pipe is not less than 2.0 mm.

[0008] As a preferred technical solution, observation holes are provided at both the upper and lower ends of the plastic body of the pipe fitting.

[0009] As a preferred technical solution, two connecting posts are provided on the plastic body of the pipe fitting, and the two ends of the heating wire are respectively connected to the two connecting posts in a one-to-one correspondence.

[0010] As a preferred technical solution, the heating wire is buried in the inner layer of the plastic body of the pipe fitting through a post-wire laying process.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The PE water supply reinforced pipe fittings of the utility model have the advantages of high strength, high rigidity and low cost of steel materials themselves, and the maximum design pressure can reach 3.5MPa, which can meet the requirements of ultra-high pressure water transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a front view of the PE water supply reinforced pipe fitting of the utility model;

[0014] Figure 2 It is a side view of the PE water supply reinforced pipe fitting of the utility model;

[0015] Figure 3 It is a horizontal cross-sectional view of the PE water supply reinforcement pipe fitting of the utility model;

[0016] Figure 4 It is a schematic diagram of the steel skeleton structure layer of the PE water supply reinforced pipe fitting of the utility model.

[0017] In the figure: 1. Plastic body of the pipe; 2. Heating wire; 3. Steel skeleton structure layer; 4. Observation hole; 5. Terminal. DETAILED DESCRIPTION

[0018] The technical solution of the utility model is further described below in conjunction with specific implementation methods:

[0019] like Figure 3 As shown, a PE water supply reinforced pipe fitting includes a pipe fitting plastic body 1, an electric heating wire 2 and a steel skeleton structure layer 3. The electric heating wire 2 is spirally arranged on the inner wall of the pipe fitting, and the steel skeleton structure layer 3 is wound around the outside of the electric heating wire 2. The steel skeleton structure layer 3 is a grid-shaped steel belt with holes, and a number of positioning nails are arranged in the steel skeleton structure layer 3. At least one terminal 5 is arranged on the pipe fitting plastic body 1, and the electric heating wire 2 is connected to the terminal 5. The steel skeleton structure layer 3 has high porosity and strength, and it is not easy to delaminate between the pipe fitting plastic body 1 and the steel skeleton structure layer 3. The structure is relatively stable and has good compressive resistance.

[0020] like Figure 4 As shown, the thickness of the steel strip is 0.2mm to 0.5mm, and the hole diameter is 0.5mm to 2.5mm.

[0021] The net distance between the inner side of the steel belt of the steel skeleton structure layer 3 and the electric heating wire 2 is not less than 4.8 mm, and the distance between the outer side of the steel belt and the outer wall of the pipe is not less than 2.0 mm.

[0022] like Figure 2 As shown, observation holes 4 are provided at both the upper and lower ends of the plastic body 1 of the pipe fitting, so as to facilitate judging the hot melting conditions of the pipe and the pipe fitting during welding.

[0023] like Figure 1As shown, two terminals 5 are provided on the plastic body 1 of the pipe fitting, and the two ends of the heating wire 2 are connected to the two terminals 5 one by one. The heating wire 2 is buried in the inner layer of the plastic body 1 of the pipe fitting through the post-wire laying process. The resistance wire is heated by an electric fusion welding machine, and the heating energy is used to connect the PE pipe fitting and the pipe. After the gaps on both sides of the pipe fitting are closed, the molten material in the interface melting zone will diffuse outwards under the action of high temperature and working pressure, so that the electric welding strength of the interface after natural cooling can achieve the safe and reliable electric welding connection requirements. Compared with the general hot-melt socket fitting process, the hot-melt effect is safer.

[0024] This embodiment is only a further explanation of the present invention, not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to this embodiment as needed, but as long as it is within the scope of the claims of the present invention, it will be protected by the patent law.

Claims

1. A PE water supply reinforced pipe fitting, characterized in that: It includes a plastic body of the pipe fitting, an electric heating wire and a steel skeleton structure layer. The electric heating wire is spirally arranged on the inner wall of the pipe fitting, and the steel skeleton structure layer is wound around the outside of the electric heating wire. The steel skeleton structure layer is a grid-like steel belt with holes. A plurality of positioning nails are arranged in the steel skeleton structure layer. At least one terminal is arranged on the plastic body of the pipe fitting, and the electric heating wire is connected to the terminal.

2. A PE water supply reinforced pipe fitting according to claim 1, characterized in that: The thickness of the steel belt is 0.2 mm to 0.5 mm, and the hole diameter is 0.5 mm to 2.5 mm.

3. A PE water supply reinforced pipe fitting according to claim 1, characterized in that: The net distance between the inner side of the steel belt of the steel skeleton structure layer and the heating wire is not less than 4.8 mm, and the distance between the outer side of the steel belt and the outer wall of the pipe is not less than 2.0 mm.

4. A PE water supply reinforced pipe fitting according to claim 1, characterized in that: The upper and lower ends of the pipe plastic body are both provided with observation holes.

5. A PE water supply reinforced pipe fitting according to claim 1, characterized in that: The plastic body of the pipe is provided with two connecting posts, and the two ends of the heating wire are respectively connected to the two connecting posts in a one-to-one correspondence.

6. A PE water supply reinforced pipe fitting according to claim 1, characterized in that: The heating wire is buried in the inner layer of the plastic body of the pipe through a post-wire laying process.

Images