Anti-scald beaker

Abstract

The invention relates to the field of laboratory vessels, and discloses an anti-scalding beaker. The anti-scalding beaker comprises a beaker body and a plurality of anti-scalding units. The anti-scalding units are evenly distributed on the outer wall of the beaker body. Each anti-scalding unit comprises a guide pipe, an air bag and liquid storage tanks made of a heat conduction material. The liquid storage tanks are connected with the corresponding air bags through the guide pipes. A carbonic acid solution is contained in each liquid storage tank. Valves are arranged in the corresponding guidepipes. Each valve comprises a valve body and a valve element. Each valve element is connected with a driving mechanism used for driving the valve element to rotate. Flow channels are formed in the valve bodies. PE air permeable membranes used for cutting off the flow channels are formed in the corresponding flow channels. The anti-scalding beaker further comprises elastic bodies used for pushingthe valve elements to open or close the corresponding flow channels, and the elastic bodies make contact with the beaker body. Each elastic body is made of shape memory alloy. The phase-transition temperature of the shape memory alloy is higher than 50 DEG C, and extension or contraction can happen after phase transition. According to the anti-scalding beaker, the anti-scalding function can be started when the beaker temperature exceeds 50 DEG C.

Description

technical field [0001] The invention relates to the field of laboratory utensils. Background technique [0002] The beaker is one of the essential utensils in chemical experiments. Because people are more accustomed to holding the beaker directly with their hands, and the beaker is in a heated state, it is easy to cause burns when directly holding the beaker, so in the chemical experiment, it is necessary to formulate a series of rules for holding the beaker or use some auxiliary tools to hold the beaker to avoid Scald, to ensure the safety of the experiment. However, these rules are directly handy for convenience. [0003] The Chinese utility model patent with the publication number CN206079978U discloses a heat-expanding and anti-scald plastic water cup. The second set is arranged on the outside of the first set, and the second set is densely covered with through holes. The outer wall of the first set is provided with cylindrical airbags corresponding to the through hol...

AI Technical Summary

Problems solved by technology

But in the hot summer, because the temperature is too high, even if there is no high-temperature substance in the water cup, the cylindrical airbag will expand. In addition, the human body will feel hot only when the temperature is above 50°C. When the temperature is below ℃, it may also promote the expansion of the cylindrical airbag

All of these may interfere with the operator's anti-scald operation and affect the normal use of the beaker.

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