| 摘要 |
The invention discloses an air-pump type operator, which receives high-viscosity materials such as toothpaste into a cylindrical casing, the casing having a corrugated flexible tube or the like connected thereto, and which dispenses contents using air pressure generated during compression of the corrugated flexible tube, and a casing provided with the same. The casing comprises an air-pump type operator, a tube-shaped body and a piston. The operator is made up of a corrugated flexible tube being open at one end and closed at the other end. A part of the closed end is protruded to create a push portion having an interior space, and an air inlet is provided to the push portion. The tube-shaped body stores a viscous material inside, and its open end is connected to an open end of the corrugated flexible tube, while the other closed end is in a funnel form having a projected centre with an outlet protrusively formed thereat. The corrugated flexible tube and the tube-shaped body are screw-connected together. The piston has a shape corresponding to the inner surface of the other end of the tube-shaped body for close adhesion. A unidirectional open check valve is provided inside the push portion of the corrugated flexible tube. According to the invention constructed as above, the high-viscosity material inside the casing is easily and neatly dispensed without spills and therefore economic loss may be reduced, the convenience in use is attained, and production costs can be lowered because of the simple construction. |
