Steel pipe plugging device

Abstract

The invention relates to a steel pipe plugging device which comprises a base pipe and an elastic sleeve barrel, one end of the base pipe is fixedly connected with a center pipe, openings are formed in the pipe wall of the center pipe, an adjusting column is slidably connected into each opening, one end of each adjusting column is fixedly connected with an adjusting block, the adjusting blocks are arranged in the elastic sleeve barrel, and trapezoidal grooves are formed in the two ends of each adjusting block; a supplementing block is arranged between the trapezoid grooves of every two adjacent adjusting blocks, the two ends of each supplementing block are fixed into the trapezoid grooves of the adjusting blocks through tension springs respectively, a center shaft is rotationally connected into the base pipe, one end of the center shaft is fixedly connected with an adjusting disc, a plane spiral protruding strip is arranged on one side of the adjusting disc, and a spiral groove is formed in the adjusting column. The center shaft and the adjusting disc can rotate by rotating a hand wheel, and when the adjusting disc rotates, the adjusting columns are driven to reciprocate under the action of the planar spiral convex strip and the spiral groove, so that the adjusting block extrudes the elastic sleeve barrel, the diameter of the elastic sleeve barrel is increased, and the steel pipe plugging device is suitable for plugging steel pipes with different pipe diameters.

Description

technical field [0001] The invention relates to the technical field of pipe bending, in particular to a steel pipe sealing device. Background technique [0002] When bending a steel pipe, in order to prevent the steel pipe from being deformed during bending, a medium is usually filled in the steel pipe to ensure that the steel pipe will not collapse during the bending process. In the prior art, the pipe is usually filled with sand, After the bending is carried out by the bending machine, after the sand is filled, the sand is easy to leak from both ends of the pipe during the moving process, resulting in insufficient sand filling in the pipe, and there is still a risk of deformation of the steel pipe during the bending process. Contents of the invention [0003] In order to make up for the deficiencies in the prior art, a steel pipe plugging device proposed by the present invention can solve the technical problems in the prior art. [0004] The technical solution adopted b...

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Problems solved by technology

[0002] When bending a steel pipe, in order to prevent the steel pipe from being deformed during bending, a medium is usually filled in the steel pipe to ensure that the steel pipe will not collapse during the bending process. In the prior art, the pipe is usually filled with sand, After the bending is carried out by the bending machine, after the sand is filled, the sand is easy to leak from both ends of the pipe during the moving process, resulting in insufficient sand filling in the pipe, and there is still a risk of deformation of the steel pipe during the bending process

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