SLUICE GATES FOR WATER SUPPLY AND DRAINAGE

摘要

The present invention relates to a water supply and sewage waterway, and since the conventional watermarks are all made of cast iron to withstand unidirectional water pressure, the weight is very heavy, resulting in handling difficulties (during construction or replacement work) and the force required to open and close the watergate. There is a problem that (power) acts relatively large. In addition, since the corrosion of the cast iron is generated in accordance with the long-term use state, the conventional water gate is not easy to install the place where the corrosiveness is strong, there is a problem that does not provide perfect watertight characteristics.;Therefore, the present invention is a high-density polyethylene material of water and sewage combined with a reinforcing rib made of stainless steel and a packing member providing elasticity and elasticity to withstand both directions of hydraulic pressure to reinforce tensile strength in order to solve the above problems. By making the water gate light, its weight is lightened so that installation work in urban sewage treatment plant, water treatment plant, industrial wastewater treatment plant, etc. can be done easily and conveniently, and corrosion caused by long-term use of the gate and overload due to corrosion when opening and closing the gate It is possible to easily install in the very corrosive place by sea water or sea wind, and to reduce the weight so that the force (power) required when opening and closing the gate is small, and the water pressure in both directions through the packing member is prevented. Water and sewage for perfect watertight properties In providing a sluice.