Application number: 200820002423.7 Application date: 2008.01.04 Name: Porcelain plastic thermos cup Publication (announcement) number: CN201131576 Publication (announcement) date: 2008.10.15 Main classification number: A47G19/22(2006.01)I Divisional original application number: Classification number: A47G19/22(2006.01)I;A47J41/02(2006.01)I Issuance date: Priority: Applicant (patent right): Sun Defu Address: 333000 Jingcheng, Changjiang District, Jingdezhen City, Jiangxi Province Zhenhu Tiancun Defu Ceramics Store Inventor (designer): Sun Defu International application: International publication: Date of entry into the country: Patent agency: Jingdezhen Gaoling Patent Office Agent: Cheng Lei Abstract The utility model relates to a kind of porcelain plastic thermal insulation The cup includes a cup lid, a ceramic liner 1, a transparent plastic shell 2, and a stainless steel bottom shell 5. It is characterized by: there is a circle of protruding ribs 1b under the edge 1a of the ceramic liner 1, and the transparent plastic shell 2 A stainless steel ring 3 is provided at the upper end, and a sealing ring 4 is sandwiched between the protruding ribs and the stainless steel ring. Since the sealing ring is located between the protruding ribs and the stainless steel ring, it has the characteristics of low manufacturing cost, simple structure and good sealing performance.