The invention relates to an antibacterial pressure-resistant vacuum dropper combined bottle and its material preparation method, aiming to solve the technical problems of difficult independent combined use of dropper bottles and vacuum bottles in existing products, as well as unreasonable material formula and preparation process of partial components. One end of the combined bottle is a vacuum bottle and the other end is a dropper bottle. A large piston is arranged inside the vacuum bottle body. The inner cover mouth ring is clamped into the edge groove of the vacuum bottle body, the fastening ribs and vertical ribs of the inner cover are respectively locked with the fastening grooves and vertical grooves of the bottle body. The fastening ribs and vertical ribs are disposed on the middle ring surface, with an upper ring surface arranged above. The diameters of the cover mouth ring, fastening ribs and upper ring surface decrease sequentially. The upper ring surface of the dropper bottle is located on the inner wall above the vertical groove of the vacuum bottle body. The nozzle of the dropper bottle forms a conical protrusion from the outer ring to the center with a liquid dropping hole in the middle, and the hole is closely attached to the gasket of the inner cover.
Area Code: CN
Application Number: CN201910490650.1
