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发明公开
CN104196485A 管道内封堵器 无效 - 撤回

管道内封堵器
摘要：
本发明提供一种管道内封堵器，包括中心管，该中心管一端端部设有引导锥体，另一端端部设有液动闸板阀；该中心管管体上由液动闸板阀端向引导锥体端依次设有连接法兰、第一吊耳、法兰连接盘、液压缸、执行套筒、平键、第二吊耳、解封环、锚定装置、剪断半环、密封装置、抗剪半环、引导锥体；该第一吊耳和第二吊耳分别与辅助机构相连接；能够用于大直径管道的封堵，其结构设计合理，操作简便，能保证封堵的稳定性和可靠性。
摘要（英）：

The invention provides an internal plugging device of a pipeline. The internal plugging device comprises a central pipe. A guide cone is arranged at one end of the central pipe. A hydraulic drive sluice valve is arranged at the other end of the central pipe. A connection flange, a first lifting lug, a flange connection disk, a hydraulic cylinder, an execution sleeve, a flat key, a second lifting lug, a deblocking ring, an anchoring device, a shearing semi-ring, a sealing device, a shear-resistant semi-ring and the guide cone are sequentially arranged on a pipe body of the central pipe from the end where the hydraulic drive sluice valve is arranged to the end where the guide cone is arranged. The first lifting lug and the second lifting lug are connected with an assistance mechanism respectively. The internal plugging device can be used for blocking a large-diameter pipeline, is reasonable in structural design and easy and convenient to operate, and can guarantee stability and reliability of blocking.

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