Groundwater meter and water supply line protection device

摘要

The present invention relates to an apparatus to protect a groundwater meter and a water supply line, and more specifically, to a new concept technique to remove foreign materials, such as sand, rock fragments, etc., included in groundwater pumped from a tubular well, so as to prevent breakage of the groundwater meter and prevent the foreign materials from being clogged in the water supply line. In an existing groundwater top protection hole, an impeller of a groundwater meter installed inside an existing groundwater top protection hole is abraded and damaged by sand and rock fragments moving inside the water supply line, a replacement request is frequently generated. The sand and the rock fragments are stacked in the water supply line and inhibit a smooth flow of the groundwater, so a problem not stably supplying the reliable groundwater to a user is caused. To solve such problems, a vortex is generated and the groundwater bumps on a drum screen during a process moving the groundwater pumped up through a pumping pipe along an inner circumferential surface of the drum screen installed in a filtering tank, so the foreign materials, such as sand, etc., are filtered and dropped to a lower part by the drum screen, and only the clean groundwater is supplied to the water supply line.