Negative pressure prevention cup lid

The utility model relates to a cup lid, in particular to a negative pressure prevention cup lid. The negative pressure prevention cup lid is composed of a cup lid body and a sealing ring, wherein the sealing ring is arranged inside the cup lid body, a plurality of cavitation bubbles are arranged on...

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Bibliographic Details
Main Author QI SHUJUN
Format Patent
LanguageChinese
English
Published 01.05.2013
Subjects
COFFEE MILLS
DOMESTIC ARTICLES OR APPLIANCES
FURNITURE
HOUSEHOLD OR TABLE EQUIPMENT
HUMAN NECESSITIES
SPICE MILLS
SUCTION CLEANERS IN GENERAL
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Summary:The utility model relates to a cup lid, in particular to a negative pressure prevention cup lid. The negative pressure prevention cup lid is composed of a cup lid body and a sealing ring, wherein the sealing ring is arranged inside the cup lid body, a plurality of cavitation bubbles are arranged on the circumference of the inner bore of the sealing ring at intervals, vent holes which correspond to the cavitation bubbles are arranged in the sealing ring, and the vent holes and the cavitation bubbles are communicated. The negative pressure prevention cup lid is simple in structure, low in cost, convenient to operate, capable of solving the problems that the purpose of opening the cup lid can be achieved, however, operation processes are complicated and consumers can not accept the cup lid easily, capable of effectively preventing negative pressure inside a cup from generating, reliable in performance, and safe in using.
Bibliography:Application Number: CN20122578190U