PIPE WITH EXPANSION AND FLEXIBLE CAPACITY

摘要

The present invention connects various conduits such as water pipes, gas and oil pipes to conduits, or connects to valves. It's about the coffin.;The pipelines used for water purification facilities, water intake, and tap water are buried along with other facilities as the ship's structure. In other words, it connects with concrete structures such as drainage sites and pumping stations, and passes through places where sealing parts, water pipe bridges, mounting parts, and buried conditions change rapidly. The damage of pipelines due to ground changes, such as settlement, liquefaction, and flow of pipes, and the effects of earthquake movement are caused by the mutual movement of pipelines and structures or pipelines due to differences in the natural period of structures and pipelines or differences in laying conditions. As a result, powerful force is applied to the connection part or the place where the buried condition is rapidly changed, so that there is not much damage such as crack of the tube or breakage of the damaged connection part.;In order to prevent damage to the pipeline and maintain its function, it is necessary to fully consider the above conditions so that the pipeline has higher seismic resistance. Therefore, technology development on the improvement of the earthquake resistance at the material or the joint of the tube is in progress, and a product having an excellent seismic structure is being developed. Among them, the expansion movable tube is one of rapid developments, and is designed to have seismic performance, especially seismic performance to attenuate the influence of seismic force or shock absorption performance due to earthquake changes.;The proposed product improved by the purpose of devising to achieve the maximum performance in the above-described conditions by combining the airtight performance, bending property and elasticity together.