Drainage pipeline plug preventing people from going down into well for inspection and using method thereof

Abstract

The invention discloses a drainage pipeline plug preventing people from going down into a well for inspection and a using method thereof. The drainage pipeline plug and the using method are mainly used in transformation, emergency maintenance, dredging and the like of municipal drainage pipelines. The drainage pipeline plug comprises a section of main tube body, wherein a nut base and a screw are arranged on the upper end portion of the main tube body, a movable operation turnplate is arranged at the upper end head of the screw, and the lower end head of the screw is in butt joint with a connector in the middle of the upper end head of the connection rod; parallelogram mechanisms are symmetrically arranged on two sides of the lower portion of the main tube body, each parallelogram mechanism comprises an upper support arm, a lower support arm and a sealing plate connection base, and a sealing plate is arranged on the sealing plate connection base; and the lower portion of the connection rod penetrates out of the main tube body, ejector rods are symmetrically hinged to two sides of the lower end of the connection rod, and the other ends of the ejector rods are hinged to the middle portions of the lower support arms of the parallelogram mechanisms. The drainage pipeline plug is safe and reliable, easy and convenient to operate, low in manufacturing cost and long in service life, and capable of effectively avoiding casualty accidents caused by the fact that construction staff going down into the well for operation inhale poisonous gases and has large market values and using values.

Description

technical field [0001] The invention relates to a plugging device for a drainage pipe of a free inspection well and a method for using the device, which is mainly used for water blocking in the reconstruction, emergency repair and dredging of municipal drainage pipes. Background technique [0002] In municipal engineering, especially in the construction of sewage pipelines, it is often necessary to partially block the sewage pipelines and pump out the water in the sewage pipelines so that construction workers can enter the sewage pipelines to work. The traditional sewage pipe plugging method is to use a plugging air bag to block water. [0003] The working principle of the plugging airbag for water blocking is to use the pipe sealing airbag made of high-quality rubber to inflate it by inflation. The frictional force generated by the pipeline blocking air bag wall and the pipeline blocks the water leakage, so as to achieve the purpose of no water seepage in the target pipe s...

AI Technical Summary

Problems solved by technology

However, the airbag must be blocked by construction workers. When the water level in the well is high, it is difficult to seal it due to excessive pressure; and there are toxic gases such as hydrogen chloride in the well, and countless casualties occur every year across the country.

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