Electric smelting saddle-shaped pipe fitting for gas pipeline and machining method of electric smelting saddle-shaped pipe fitting
A gas pipeline, electrofusion technology, applied in the direction of pipe/pipe joint/pipe fitting, pipeline connection layout, application, etc., can solve the problem of poor flatness of saddle surface, achieve flatness improvement, reduce welding failure rate, circumferential surface smooth effect
Pending Publication Date: 2021-03-12
NINGBO HENGYUAN PRECISION VALVES TECH
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AI Technical Summary
Problems solved by technology
[0009] The purpose of the present invention is to solve the problem of poor flatness of the saddle surface of the saddle-shaped base of the existing electric-fused saddle-shaped pipe fittings, and to provide an improved base structure of the electric-fused saddle-shaped pipe fittings, which can obtain better flatness in this structure. good saddle
Method used
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Embodiment Construction
[0051] The saddle-shaped pipe fitting of the present invention may be one of an electric fusion saddle type straight-through pipe fitting, an electric fusion saddle type bypass pipe fitting and an electric fusion saddle type plugging pipe fitting. The technical scheme of the present invention will be further described below in conjunction with the accompanying drawings by taking the electrofusion saddle bypass pipe fitting as an example.
[0052] refer to Figure 1-4 , an electrofusion saddle-type bypass pipe fitting based on the technical solution of the present invention, including a cap 1 , an intermediate body 2 , a drilling tool 4 and an integral injection molded part 3 . The integral injection molded part 3 is composed of an upper vertical pipe 31, a horizontal pipe 32 communicating with the waist of the vertical pipe 31, and a lower base 33 for connecting with the target pipe. The vertical pipe 31 and the horizontal pipe 32 form an electrofusion The basic part of the m...
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The invention relates to the technical field of gas pipelines, and particularly relates to the technology of connecting a target pipeline with a branch pipeline or blocking a hole in the target pipeline, and discloses an electric smelting saddle-shaped pipe fitting for a gas pipeline and a machining method of the electric smelting saddle-shaped pipe fitting. The electric smelting saddle-shaped pipe fitting comprises a base used for being connected with the target pipeline, wherein the base is of a ring sleeve structure with an opening; a saddle-shaped face is located on the inner side of the ring sleeve structure with the opening; and the ring sleeve structure with the opening is formed by breaking the closed ring sleeve structure formed through injection molding at the opening. The saddle-shaped welding face of the electric smelting saddle-shaped pipe fitting is flat, no concave defect exists, the electric smelting saddle-shaped pipe fitting can be tightly attached to the target pipeline, the electric smelting welding effect is good, and sealing performance is good.
Description
technical field [0001] The invention relates to the technical field of gas pipelines, in particular to the technology of connecting target pipelines and branch pipelines or sealing pores on the target pipeline, and in particular relates to an electrofusion saddle-shaped pipe fitting and a processing method thereof. Background technique [0002] Polyethylene electrofusion saddle fittings are widely used in the field of gas pipelines. They are mainly used to connect branch pipelines at the appropriate position of the target pipeline, or to seal the pores on the target pipeline. Common fused saddle fittings include fused saddle bypass fittings, fused saddle straight-through fittings, fused saddle plugging fittings, etc. Among them, fused saddle bypass fittings generally have built-in drilling tools, which are mostly used for target The transmission of pipeline gas is not easy to stop, but the connection of branch pipelines needs to be completed on the premise that the target pi...
Claims
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IPC IPC(8): F16L47/03F16L47/34B29D23/00
CPCF16L47/03F16L47/34B29D23/001
Inventor 孙志强童津金孙杰
Owner NINGBO HENGYUAN PRECISION VALVES TECH