DEVICE FOR ADJUSTING WATER LEVEL, WATER LEVEL-ADJUSTABLE WATER RECEIVER AND WATER LEVEL-ADJUSTABLE PLANTER

摘要

PROBLEM TO BE SOLVED: To provide a device for adjusting water levels capable of bringing the device to be small, a water level-adjustable water receiver and a water level-adjustable planter. SOLUTION: A case 10 is tightly closed at its side faces and its upper face and open at its bottom face and has a water injection port 16 and an air vent 17 and has a vent hole 18 on the lower part of the side faces. A first float 20 having a ventilation stopper 24 is put in the upper part of the case 10 to be movable upward and downward by its buoyancy to water and self-weight and the ventilation stopper 24 opens and shuts the air vent 17 by water level. A second float 30 having a water injection stopper 34 is put in the inside of the case 10 to be movable upward and downward by its buoyancy to water and self-weight. The water injection stopper 34 shuts the water injection port 16 depending on the water level in the case 10 and, when the water level is in a state in which the vent hole 18 is communicating with the air, the water injection stopper 34 opens the water injection port 16.