Saddle-type bypass with pressure opening connection device for conveying pipeline

Abstract

The invention discloses a saddle-type bypass pressure tapping connecting device for a delivery pipe, and belongs to the technical field that a branch pipe line is installed on and connected with a main delivery pipe. The saddle-type bypass pressure tapping connecting device aims at solving the problems that an existing saddle-type bypass pressure tapping connecting device for the delivery pipe is unreasonable in structural design, the apertures of tapped holes are small, and use is limited. The saddle-type bypass pressure tapping connecting device comprises a saddle-type bypass pressure tapping mechanism, a pipe bypass plugging mechanism and a pipe bypass closing and connecting mechanism. The saddle-type bypass pressure tapping mechanism is characterized in that a T-type connecting pipe base, a three-way pipe base, an inversed-T-type connecting pipe base, a rotary knife connecting base and a lock catch thread nut with a locking handle are installed on an electric smelting saddle-type bypass body in a connected mode, wherein the rotary knife connecting base is connected to the inversed-T-type connecting pipe base, and a tapping rotary knife and a rotary knife stop table are installed in the rotary knife connecting base. The pipe bypass plugging mechanism is characterized in that one end of a plugging pipe base is connected with the three-way pipe base, the other end of the plugging pipe base is connected with a thrusting sleeve and a handle rotary cover, and a plugging plug and a plugging lead screw are installed in the pipe bypass plugging mechanism. The pipe bypass closing and connecting mechanism is characterized in that a leakage-proof sealing plug screw and a pipe opening sealing cap are installed on and connected to a through pipe opening part of the electric smelting saddle-type bypass body. The saddle-type bypass pressure tapping connecting device is simple in structure and suitable for pressure tapping connecting of branch pipes of delivery pipes for fuel gas, water and the like.

Description

technical field [0001] The invention belongs to the technical field of installation and connection of branch pipelines for main pipelines, and relates to a pressure-opening connection device for saddle-type bypasses of pipelines. Background technique [0002] With the increasing development and wide application of transmission pipelines, especially the laying of a large number of gas, fuel oil and water supply pipelines, the technical requirements for pressure installation and connection of branch lines of transmission pipelines are also getting higher and higher. In the known technology, the existing conveying pipeline saddle-type bypass with pressure opening connection device is mainly composed of an electric fusion saddle-type bypass main body, a hole opening rotary knife, a rotary knife seat cover, a rotary knife guide connecting rod with a handle, However, due to the limitation of its structure, although a sealing rubber ring is installed between the rotary knife seat c...

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the deficiencies of the existing technology and solve the problem of unreasonable structural design of the existing saddle-type bypass with pressure opening connection device for the pipeline, the hole diameter of the opening is small, and the use is limited.

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