Thermal insulation device for beverage can or bottle

Abstract

A thermal insulation device for a beverage can or bottle, including a plastic-coated lid and a stainless-steel vacuum cup body. The stainless-steel vacuum cup body is provided with a cavity to accommodate the beverage can or bottle. The plastic-coated lid includes a hard plastic cover and a plastic rubber sleeve, where the plastic rubber sleeve is formed at a mouth part of the hard plastic cover through overmolding. The plastic rubber sleeve is provided with a central limiting hole matched with the beverage can or bottle, and a circumference of the limiting hole is provided with a flexible rubber pressing ring extending outward to compress the beverage can or bottle. An outer wall of the hard plastic cover is provided with a clamping groove which is provided with a silicone sealing sleeve in sealing fit with an inner wall of the stainless-steel vacuum cup body.

What is claimed is: 
     
         1 . A thermal insulation device for a beverage can or bottle, comprising:
 a plastic-coated lid; and   a stainless-steel vacuum cup body;   wherein the stainless-steel vacuum cup body is provided with a cavity to accommodate the beverage can or bottle; the plastic-coated lid comprises a hard plastic cover and a plastic rubber sleeve, wherein the plastic rubber sleeve is formed at a mouth portion of the hard plastic cover through overmolding; the plastic rubber sleeve is provided with a central limiting hole matched with the beverage can or bottle; a circumference of the central limiting hole is provided with a flexible rubber pressing ring extending outward to press the beverage can or bottle; an outer wall of the hard plastic cover is provided with a clamping groove; and the clamping groove is provided with a silicone sealing sleeve in sealing fit with an inner wall of the stainless-steel vacuum cup body.   
     
     
         2 . The thermal insulation device of  claim 1 , wherein the silicone sealing sleeve is provided with at least two sealing clamp rings arranged up and down; the at least two sealing clamp rings are in tight fit with the inner wall of the stainless-steel vacuum cup body; and the at least two sealing clamp rings are respectively provided with a beveled opening for reducing a press-in or pull-out resistance. 
     
     
         3 . The thermal insulation device of  claim 1 , wherein the hard plastic cover is provided with a connecting column; and the connecting column fixedly connected with the plastic rubber sleeve. 
     
     
         4 . The thermal insulation device of  claim 2 , wherein the hard plastic cover is provided with a connecting column; and the connecting column fixedly connected with the plastic rubber sleeve. 
     
     
         5 . The thermal insulation device of  claim 3 , wherein the stainless-steel vacuum cup body comprises a stainless-steel shell and a stainless-steel liner; and
 the stainless-steel shell is fixedly sleeved on the stainless-steel liner; and a thermal insulation vacuum layer is arranged between the stainless-steel liner and the stainless-steel shell.   
     
     
         6 . The thermal insulation device of  claim 4 , wherein the stainless-steel vacuum cup body comprises a stainless-steel shell and a stainless-steel liner; and
 the stainless-steel shell is fixedly sleeved on the stainless-steel liner; and a thermal insulation vacuum layer is arranged between the stainless-steel liner and the stainless-steel shell.