Internal support and collapse prevention structure for artificial otter cave

The invention relates to the related field of cave support. The invention discloses an internal supporting and collapse preventing structure for an artificial otter cave, and aims to solve the problem that an existing device is relatively troublesome to carry and mount due to the fact that the existing device is assembled by matching a plurality of connecting rods with structures such as bolts. The device is composed of a one-way opening mechanism and a connection locking mechanism. According to the internal supporting and collapse preventing structure for the artificial otter cave, after the two supporting arc plates are completely unfolded, the outer side of the abutting plate abuts against the inner wall of the cave, at the moment, the deflection plate is stressed to deflect and slides on the inner side of the abutting plate, it is guaranteed that the outer side of the abutting plate applies pressure to the inner wall of the cave, and then a balancing weight is held and pushed upwards; and in the connectin