Accurate butting and rapid locking joint for pipelines

Abstract

The invention provides an accurate butting and rapid locking joint for pipelines. The accurate butting and rapid locking joint for the pipelines comprises a stepped flange, a sealing gasket and more than one buckle-type locking assembly, wherein a bulged cylindrical pin is arranged on the end surface of a large-diameter end of the stepped flange, the sealing gasket is installed on the cylindricalpin in a sleeved manner, and makes contact with the end surface of the large-diameter end of the stepped flange, and a small-diameter end of the stepped flange is used for being fixedly connected withone pipeline; and the more than one buckle-type locking assembly is uniformly fixed to a platform in the outer circumference of the large-diameter end of the stepped flange, the end surface of the large-diameter end of the stepped flange makes relative contact with the end surface of the outer side of the butted pipeline flange, the cylindrical pin forms clearance fit with an unthreaded hole of the butted pipeline flange to realize butting, and meanwhile, locking is realized through the matching of the buckle-type locking assembly and the end surface of the inner side of the butted pipeline flange. The accurate butting and rapid locking joint for the pipelines is capable of realizing accurate butting and rapid locking between pipelines, saving the labor, and increasing the efficiency.

Description

technical field [0001] The invention relates to the technical field of pipeline connection, in particular to a precise butt joint and fast locking joint of pipelines. Background technique [0002] At present, when fluid (such as compressed gas, water, oil) equipment is tested (pipeline cleaning, sealing), most of the two pipelines are connected by bolts evenly distributed on the end faces of the flanges. A single test requires repeated disassembly and assembly of several pipelines. Bolts not only take a lot of time, but also because the operator needs to use nuts to lock the bolts while moving the pipe flange, which greatly consumes the physical strength of the operator, and requires the cooperation of two or more operators. Finish. Therefore, in order to achieve the goal of "plug and play, convenient connection", it is urgent to design a joint that can realize quick docking and locking of pipelines. Contents of the invention [0003] In view of this, the present inventi...

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Problems solved by technology

[0002] At present, when fluid (such as compressed gas, water, oil) equipment is tested (pipeline cleaning, sealing), most of the two pipelines are connected by bolts evenly distributed on the end faces of the flanges. A single test requires repeated disassembly and assembly of several pipelines. Bolts not only take a lot of time, but also because the operator needs to use nuts to lock the bolts while moving the pipe flange, which greatly consumes the physical strength of the operator, and requires the cooperation of two or more operators. Finish

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