| 摘要 |
The present invention relates to an automatic water supply apparatus, which comprises a water container containing water supplied from outside, a container holding soil where a plant is planted, and an inlet connected to the inside of the water container and fixed to the inside of the container on one end, is installed on the end of the inlet, and supplies water to the container by controlling water flowed in through the inlet. The automatic water supply apparatus comprises a body having a discharge port, which guides the water flowed in to the inlet to the inside of the container, formed on one side; an opening/closing means opening/closing the discharge port, and having a protrusion which is elastically supported by a spring installed inside and projected to outside; and a pressurizing means formed in a bag shape, made of a foaming resin material, which becomes to have a larger volume and soft if water is absorbed, and becomes contracted and stiff if dried, and installed to surround the end of the inlet so as to contain the body and the opening/closing means. The non-powered automatic water supply apparatus corresponding to drying of soil moisture is characterized in that when the inside of the container becomes dry, the pressurizing means pressurizes the protrusion to open the discharge port so as to supply water, and when water is supplied enough to make the pressurizing means soft, the protrusion is withdrawn backward to block the supplying water. |
