PE (Poly Ethylene) electric melting pipe fitting

Abstract

The utility model discloses a PE electric melting pipe fitting which comprises a pipe body, a heating wire is wound on the inner wall of the pipe body, an annular butt joint table is integrally arranged in the pipe body, and a heating wire is also wound on the inner ring of the butt joint table. The butt-joint table is arranged in the pipe body, the two pipelines can abut against the two sides of the butt-joint table after being inserted into the pipe body, after the heating wire is electrified and heated, the inner side of the electric melting pipe fitting can be melted, the butt-joint table is bonded with the ends of the two pipelines, and the connection leakproofness of the two pipelines can be further improved; and the problem of poor matching tightness with the PE electric melting pipe fitting due to pipeline shrinkage is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe connectors, in particular to a PE electric fusion pipe fitting. Background Art

[0002] Polyethylene pipes or fittings will shrink to varying degrees as the storage time and storage environment temperature change. This will result in different degrees of tightness when the outer diameter of the pipe or fittings is matched with the PE electric fusion fittings. The tightness between the pipe and the PE electric fusion fittings is poor, which reduces the adaptability and stability of the pipe and PE electric fusion fittings after connection. Utility Model Content

[0003] The purpose of the utility model is to avoid the deficiencies of the prior art and provide a PE electric fusion pipe fitting, thereby effectively solving the deficiencies in the prior art.

[0004] To achieve the above purpose, the technical solution adopted by the utility model is: a PE electric fusion pipe fitting, including a pipe body, a heating wire is wound on the inner wall of the pipe body, an annular docking platform is integrally arranged inside the pipe body, and the inner circle of the docking platform is also wound with a heating wire.

[0005] Furthermore, both ends of the tube body are provided with necking rings whose inner diameter is smaller than the inner diameter of the tube body.

[0006] Furthermore, the necking ring is integrally arranged on the inner sides of both ends of the tube body.

[0007] Furthermore, a circular arc is provided between the neck ring and the inner side of the tube body.

[0008] Furthermore, the necking ring is detachably arranged at both ends of the tube body.

[0009] Furthermore, the necking ring comprises a ring body which can be inserted into the tube body and a cover plate which covers the outer end of the tube body.

[0010] Furthermore, the ring body is inserted into the tube body to a position beyond the heating wire.

[0011] Furthermore, an insert ring is provided on the cover plate at one side facing the tube body, and a slot is provided on the side wall of the tube body to match the insert ring.

[0012] The above technical scheme of the utility model has the following beneficial effects: the utility model arranges a docking platform inside the pipe body, and after the two pipes are inserted into the pipe body, they can abut against the two sides of the docking platform. After the heating wire is energized and heated, the inner side of the electric fusion pipe fitting can be melted, and the docking platform is bonded to the ends of the two pipes, which can further improve the airtightness of the connection between the two pipes and avoid the problem of poor tightness of the fitting with the PE electric fusion pipe fitting due to the shrinkage of the pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a cross-sectional schematic diagram of the first embodiment of the utility model;

[0014] Figure 2 It is a cross-sectional schematic diagram of the second embodiment of the utility model. DETAILED DESCRIPTION

[0015] The following is a detailed description of the preferred implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0016] In the description of the present utility model, unless otherwise specified, "multiple" means two or more than two; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0017] like Figure 1-2 As shown, a PE electric fusion pipe fitting of the present embodiment comprises a pipe body 1, on the inner wall of which a heating wire 2 is wound, and an annular docking platform 3 is integrally arranged inside the pipe body 1, and the inner ring of the docking platform 3 is also wound with the heating wire 2; after the two pipes are inserted into the pipe body 1, they can be pressed against the two sides of the docking platform 3, and the inner side of the electric fusion pipe fitting can be melted after the heating wire 2 is energized and heated, and the docking platform 3 is bonded to the ends of the two pipes, which can further improve the airtightness of the connection between the two pipes and avoid the problem of poor tightness of the PE electric fusion pipe fitting due to the shrinkage of the pipes; when the PE electric fusion pipe fitting is manufactured, two docking mold cores can be provided, and an annular groove is provided at the docking position of the two docking mold cores, which is the molding position of the docking platform 3, and the heating wire 2 is wound on the mold core and the annular groove, and then the pipe body 1 is injection molded on the outer side of the heating wire 2, and after cooling and molding, the heating wire 2 and the pipe body 1 become one, and the two mold cores can be pulled out to demould;

[0018] Preferably, both ends of the pipe body 1 are provided with a necking ring 4 whose inner diameter is smaller than the inner diameter of the pipe body 1. When the pipe shrinks, the necking ring 4 can be installed in conjunction with the shrunk pipe.

[0019] In the first embodiment, the necking ring 4 is integrally arranged on the inner sides of both ends of the pipe body 1. The pipe body 1 and the necking ring 4 are made of PE material. The necking ring 4 on the pipe body 1 can be installed in conjunction with the shrunk pipe. For pipes with less shrinkage or no shrinkage, the necking ring 4 can be removed and the inner diameter of the pipe body 1 can be enlarged to fit the pipe.

[0020] Preferably, a circular arc is provided between the neck ring 4 and the inner side of the tube body 1 to facilitate the demoulding step after the tube is formed;

[0021] In the second embodiment, the necking ring 4 is detachably arranged at both ends of the pipe body 1, the necking ring 4 and the pipe body 1 are formed separately, and the necking ring 4 can be installed on the pipe body 1 to adapt to the shrunk pipe;

[0022] Preferably, the necking ring 4 includes a ring body 41 that can be inserted into the pipe body 1 and a cover plate 42 that covers the outer end of the pipe body 1; the necking ring 4 is inserted into the pipe body 1 through the ring body 41 for fixing; the cover plate 42 can play a limiting role when the necking ring 4 is plugged into the pipe, so as to prevent the pipe from pushing the ring body 41 into the pipe body 1;

[0023] Preferably, the ring body 41 is inserted into the tube body 1 to a position beyond the heating wire 2. When the heating wire 2 heats the tube body 1, the ring body 41 can also be heated, so that the ring body 41 and the tube body 1 are melted and bonded into one body, thereby improving the overall stability.

[0024] Preferably, an insert ring 43 is provided on the side of the cover plate 42 facing the tube body 1 , and a slot is provided on the side wall of the tube body 1 to cooperate with the insert ring 43 . The cover plate 42 cooperates with the slot through the insert ring 43 to further improve the stability of the neck ring 4 .

[0025] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A PE electric fusion pipe fitting, characterized in that: The utility model comprises a tube body, the inner wall of which is wound with a heating wire, an annular docking platform is integrally arranged inside the tube body, and the inner circle of the docking platform is also wound with a heating wire.

2. A PE electric fusion pipe fitting according to claim 1, characterized in that: Both ends of the tube body are provided with necking rings whose inner diameter is smaller than the inner diameter of the tube body.

3. A PE electric fusion pipe fitting according to claim 2, characterized in that: The necking ring is integrally arranged on the inner sides of both ends of the tube body.

4. A PE electric fusion pipe fitting according to claim 3, characterized in that: A circular arc is arranged between the neck ring and the inner side of the tube body.

5. A PE electric fusion pipe fitting according to claim 2, characterized in that: The necking rings are detachably arranged at both ends of the tube body.

6. A PE electric fusion pipe fitting according to claim 5, characterized in that: The necking ring comprises a ring body which can be inserted into the pipe body and a cover plate which covers the outer end of the pipe body.

7. A PE electric fusion pipe fitting according to claim 6, characterized in that: The ring body is inserted into the tube body beyond the position of the heating wire.

8. A PE electric fusion pipe fitting according to claim 6, characterized in that: An insert ring is arranged on the side of the cover plate facing the tube body, and a slot is arranged on the side wall of the tube body to match the insert ring.

Images