Double layer heat insulation adsorption plastic cup sleeve

Abstract

The invention discloses a double-layer heat-insulating and adsorbing plastic cup cover, comprising: an inner sheath, an outer sheath is arranged on the outside of the inner sheath, the inner sheath is concentric with the outer sheath, and the inner sheath The top and bottom of the sheath and the outer sheath are respectively connected to form a closed cavity. The inner wall of the inner sheath is provided with several tapered holes, and the center of the tapered hole is provided with a closed container. Ventilation holes connected to the cavities. Through the above method, the double-layer heat-insulating and adsorbing plastic cup sleeve of the present invention has a double-layer structure and good heat insulation effect. After the inner sheath is attached to the outside of the cup, press the outer sheath to discharge the gas in the closed cavity , Loosen the outer sheath, the outer sheath elastically recovers to form a negative pressure at the tapered hole, adsorbed on the surface of the cup, which improves the connection fixity between the inner sheath and the cup, avoids the problem of the inner sheath slipping, and improves the use stability.

Description

technical field [0001] The invention relates to the field of plastics, in particular to a double-layer heat-insulating and adsorbing plastic cup cover. Background technique [0002] With the development of plastic production technology, the materials of plastic water cups are becoming more and more safe. Compared with glass water cups, plastic water cups are more portable, not easy to break, and are widely used. [0003] The heat transfer of the plastic water cup is relatively direct. If the water temperature in the plastic water cup is high, the high temperature will be directly transmitted to the outside, and it is difficult to operate directly by hand. Therefore, some water cups are equipped with heat insulation sleeves, but ordinary heat insulation sleeves are single-layer Yes, the heat insulation effect is poor, and it is difficult to fix on the outer wall of the cup, and it is easy to slide down. Contents of the invention [0004] The technical problem mainly solved...

AI Technical Summary

Problems solved by technology

[0003] The heat transfer of the plastic water cup is relatively direct. If the water temperature in the plastic water cup is high, the high temperature will be directly transmitted to the outside, and it is difficult to operate directly by hand. Therefore, some water cups are equipped with heat insulation sleeves, but ordinary heat insulation sleeves are single-layer Yes, the heat insulation effect is poor, and it is difficult to fix on the outer wall of the cup, and it is easy to slide

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