WATER TANK DEVICE FOR ADAPTING LIVE CRAB TO THE SURFACE OF THE SEA WATER

摘要

A water tank device for an activity is disclosed. The present invention relates to a water tank for an active water, comprising a plurality of protrusions protruding horizontally at an upper portion of the inner surface of the water tank, A water tub main body having a ring formed at an upper portion thereof; A sponge disposed on an outer edge of the water tank body in a shape of a rectangular plate so as to be horizontally inserted into the water tank body and having a handle provided to be held by a user near a top edge thereof, A pressure plate having a fixing strap fixed to the handle; Each of which has a predetermined length and is formed in the shape of a stick having a "?" Shape in cross section, is fitted between the water tub main body and the sponge, and prevents the pressure plate from hitting the protrusion; An expansion unit installed at a lower portion of the pressure plate to pressurize or decompress the pressure of the seawater contained in the seawater chamber as the high pressure water is injected or discharged and the volume contracts or expands; And a plurality of individual tanks formed in the water tank main body, in which an independent accommodation space is formed in which a plurality of balls are independently accommodated.