▎ 摘　　要

NOVELTY - Light weight high-rigidity dropper comprises drop cover assembly, which comprises pressing cap (1), rubber head (2), outer cover (3) and dropper (5). The one end of dropper is inserted into bottle mouth of glass bottle (6). A buckle rib at other end of dropper is connected to pipe buckle at one end of rubber head. A channel in dropper communicates with air cavity in rubber head. A hole under pipe buckle of rubber head is abutted against bottle mouth of glass bottle and sealed. The other end of rubber head partially protruding from one end of outer cover is provided with pressing cap. The pressing cap partially protrudes from opening at top of outer cover. The inner diameter of cover opening at other end of outer cover is provided with cover groove, and outer cover at this end is provided with large ring. A step ring of outer diameter of cap is limited to orifice at top of outer cover. The rubber head in outer cover is in contact with inner top of press cap in outer cover. USE - Used as lightweight high-rigidity dropper. ADVANTAGE - The dropper: fastens and fixes cover buckle of the large ring on the cover groove of the outer cover; and engages the gear ring of the large ring with a locating rib of the outer cover. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing the light weight high-rigidity dropper by taking 65-85 pts. wt. polypropylene, 5-15 pts. wt. graphene oxide, 5-10 pts. wt. toughening agent, 5-8 pts. wt. compatibilizer, 5-10 pts. wt. rigid complex modifier, 1-2 pts. wt. antioxidant, 1-1.5 pts. wt. anti-ultraviolet light absorber, and 0.5-1 pts. wt. antistatic agent, where the polypropylene comprises homopolymerized polypropylene with a melt index of 20-100 g/10 minute at 230degreesC/2.16 kg, the toughening agent comprises ethylene-butene polymer, ethylene-octene polymer, and/or ethylene-propylene polymer, the compatibilizer comprises maleic anhydride grafted polyolefin elastomer, maleic anhydride grafted polypropylene, and/or maleic anhydride grafted polypropylene, the content of maleic anhydride is 1.5-3.5%, the rigid complex modifier comprises modified carbon fiber chopped material with a density of 1.78 g/cm3, the antioxidant comprises antioxidant A30, antioxidant HS02, antioxidant H3336 and/or antioxidant H10, the anti-ultraviolet absorber comprises ultraviolet absorber UV320, ultraviolet absorber UV380 and/or ultraviolet absorber UV670, and the antistatic agent comprises HDC-102 antistatic agent or HBS-510 antistatic agent. DESCRIPTION OF DRAWING(S) - The drawing shows an explosion structure of the lightweight high-rigidity dropper. Pressing cap (1) Rubber head (2) Outer cover (3) Dropper (5) Glass bottle (6)