A provisional flower pot of flood protection of the present invention comprises main bodies and water-proof plates. The main body entirely has a hexahedral shape. The main body is composed of a containing space with an opened upper portion and guide grooves vertically formed on both lateral surfaces of the main body. Transfer rollers are formed at the bottom portion of the main body such that the transfer rollers are able to move through rotation. A blocking film is coupled with the bottom portion of the main body such that it is stretched downwardly outside of the main body. When the main bodies are positioned adjacent to each other, the water-proof plates are inserted into and coupled with the grooves of the neighboring main bodies. The main bodies may be used as flower pots by planting landscape trees therein, sand pockets for disaster prevention may be contained in the main bodies. At the time of flood, such main bodies are arranged at predetermined intervals in the region requiring water proofing, such as a boundary between the sidewalk and the driveway, both end portions of the water-proof plates are inserted into and coupled with the guide grooves of the neighboring main bodies, thereby preventing flood. At normal times, the main bodies serve as flower pots for landscape trees or storerooms for disaster preventing product. However, at the time of flood, the water-proof plates are inserted into the main bodies, thereby completely forming a water-proof wall.본 발명의 홍수방어용 간이화단은 전체적으로 육면체의 형상으로 상부가 뚫려 내부에 형성되는 수납공간과, 양측면에 수직으로 형성되는 가이드홈이 구성되며, 하부에는 회전하여 이송가능하도록 이송롤러가 형성되며, 하단부에는 차단막이 외측 하부로 쳐지도록 결합구성되는 본체； 상기 본체를 다수개 이웃하도록 위치시키고, 상기 이웃하는 본체의 가이드홈에 끼워져 결합되는 차수판；으로 구성되어, 조경수를 식재하여 화분으로 사용하거나 방재용 모래주머니를 수납할 수 있는 본체를 인도와 차도의 경계 등 홍수 시에 차수가 필요한 장소에 일정간격으로 배치시켜 놓고, 차수가 필요한 경우에, 인접한 본체들의 가이드홈에 차수판의 양단부를 끼워 결합하여 홍수를 방지할 수 있도록 구성되어, 평상시에는 조경수의 화분 또는 방재용품의 저장고로서의 역할을 하면서도 홍수 시에는 차수판을 끼워 넣기만 하면 완벽하게 차수벽을 형성할 수 있다.
