Pressure-meeting equalizer-free stopper
A plug and equalizer technology, applied in the direction of pipes/pipe joints/fittings, mechanical equipment, pipe components, etc., can solve the problems of hidden leakage of short plugs, complicated installation steps, left pipelines, etc., so as to improve the sealing performance. The effect of blocking performance, reasonable structure and convenient use
Active Publication Date: 2013-01-09
新疆三叶管道技术有限责任公司
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Problems solved by technology
[0003] The invention provides a pressure-resisting equalizer-free occluder, which solves the problem that the existing occluder must be equipped with an equalizer when used, the installation steps are complicated, and there will be short joint plugs left in the pipeline and there is a hidden danger of leakage. The problem
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[0020] The present invention is not limited by the following examples, and specific implementation methods can be determined according to the technical solutions of the present invention and actual conditions.
[0021] Below in conjunction with preferred embodiment and accompanying drawing, the present invention will be further described:
[0022] as attached figure 1 As shown, the pressure-free equalizer type occluder includes a connecting shell 1, a hydraulic cylinder 2, a connecting rod 3, a plug seat 4, a plug rotating shaft 5 and a plugging head, and the lower end of the connecting shell 1 has a fixing method. The flange 6 can be fixedly installed on the maintenance hole 8 of the pipeline through the splint valve 7, the upper end of the connection housing 1 is equipped with a hydraulic cylinder 2, and the inside of the connection housing 1 has a connection housing lumen 9, and the plug seat 4 is installed on the Connecting the lumen 9 of the housing and moving up and dow...
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The invention relates to the technical field of low-pressure pipeline under-pressure plugging devices, and provides a pressure-meeting equalizer-free stopper, which comprises a connecting shell, a hydraulic cylinder, a connecting rod, a plug seat, a plug rotating shaft and a plug. The lower end of the connecting shell is provided with a fixing flange and can be fixedly arranged on a maintenance hole of a pipeline through a sandwich valve; the upper end of the connecting shell is provided with the hydraulic cylinder; a connecting shell cavity is formed in the connecting shell; the plug seat isarranged in the connecting shell cavity; the plug is hinged to the plug seat through the plug rotating shaft and can rotate by meeting the flow direction of liquid in the pipeline so as to realize plugging; and a plugging cup is arranged on the plug. The pressure-meeting equalizer-free stopper has the advantages of reasonable and compact structure and convenient use, does not need an equalizer, can realize the plugging through the plug rotating by meeting the pressure, obviously improves the plugging performance of the plug through a large-diameter rear sandwich, the plugging cup with an external sealing lip and a cushion block capable of lifting the plugging cup, and has the characteristics of safety, labor saving, simpleness, convenience, and high efficiency.
Description
1. Technical field [0001] The invention relates to the technical field of plugging devices under pressure for low-pressure pipelines, and relates to a pressure-facing and equalizer-free plugging device. 2. Background technology [0002] During the emergency repair or connection of the pipeline, in order to facilitate the rapid organization of construction, it is often necessary to immediately block the pipeline. At present, the pipeline mechanical pressure sealing technology is often used to seal the pipeline, because it has good feasibility, safety and economy. , Fast and efficient, it is often used in special operations such as maintenance and emergency repair of in-service pipelines. Mechanical sealing of pipelines under pressure means that when installing pipelines, a plugging tee with maintenance holes and splint valves is installed between two sections of pipelines in advance. The splint valve is installed on the outlet of the maintenance hole, and the closed splint va...
Claims
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IPC IPC(8): F16L55/10
Inventor 孙文成台熙鑫杨自力刘晨东周林元邵泽义吴民毛新东崔振中邓云峰张子灵张炜晔
Owner 新疆三叶管道技术有限责任公司