Abstract: An electrolysis device for preparation of hypochlorous water is provided, comprising an electrolytic cell, and cathodic and anodic electrolytic sheets arranged in the electrolytic cell, wherein the electrolytic cell is separated to form an inner tank for containing hydrochloric acid and an outer tank for circulating tap water, a central portion of the inner tank is sealed and separated relative to the outer tank, and a chlorine discharge outlet connected to the outer tank is provided at the upper end of the inner tank; the cathodic and anodic electrolytic sheets are located on both sides of the inner tank. The electrolysis device without a membrane utilizes tap water and hydrochloric acid as raw materials, having an inner tank for containing hydrochloric acid and an outer tank for circulating tap water. Chlorine generated through electrolysis of hydrochloric acid is discharged from the chlorine discharge outlet and combined with tap water in the outer tank to generate hypochlorous acid.

Abstract: The invention relates to a kind of volumetric pipet. It includes an outer casing. At the lower part of the outer casing, there is a fetching mouth which is detachably mounted to a liquid container. At the top of the outer casing, there is a detachably sealed top cover. Inside the outer casing, there is a hollow core with a top opening. There is an inlet mouth on the side wall of the core that corresponds to the fetching mouth. The internal wall of the outer casing can slide against the external wall of the core. The core's rotating or sliding along its longitudinal orientation makes the fetching mouth and the inlet mouth correspond or stagger. This invention provides an easy-to-operate, precise rationing, quick and sanitary volumetric pipet.