Abstract: A reinforcing device for a bathtub consists of a bathtub body and a reinforcing base. The bathtub body has four feet beneath the bottom of the bathtub body. The reinforcing base has four basic holes corresponding to the four feet of the bathtub body. The four feet of the bathtub body are capable of being, respectively, inserted into the four basic holes of the reinforcing base. Each foot of the bathtub body and each basic hole of the reinforcing base are screwed up by a screw member, by which the reinforcing base is capable of being fastened with the bathtub body so as to increase the bearing strength and the durability of the bathtub body.

Abstract: A collapsible shelf for bathrooms having a pair of hollow E-shaped frames, two deposit plates for putting things thereon and hanging rod unit for hanging towels or the like, the E-shaped frames respectively having a vertical portion and three horizontal portions extending from the vertical portion to assemble the two deposit plates and the rod unit between them by lateral side opposite grooves in the plates and the rod unit and a slot in each horizontal portion, and two lateral side rods in the plates and the rod unit fitting in hollow interiors of the vertical portions.

Abstract: An auto-inflated life buoy has a belt-like air bag and an air container. The belt-like air bag defines a hollow bag, and has tongue secured on the inside wall of one end and a groove secured on the inside wall of the other end. The air container secured on the outside wall of one end of the belt-like air bag includes an air inlet, an internal chamber and an inlet nozzle. The air inlet coupled to the belt-like air bag is in open communication with the internal chamber which has a press button on the top and a film on the bottom. The lower part of the press button is combined with a pressure spring.