Thermal insulation lunch box

Abstract

The invention relates to the technical field of diet, in particular to a thermal insulation lunch box, aiming at solving the technical problem that the existing thermal insulation lunch box is not strong in thermal insulation effect, so that a farmer has to eat cold rice on the mountain. In order to the solve the technical problem, the invention provides a thermal insulation lunch box, comprisinga thermal insulation barrel; the top of the thermal insulation barrel is connected with a barrel cover by means of screw threads; a rice containing bucket is welded in the thermal insulation barrel; heat conduction pipes are arranged between the rice containing bucket and the thermal insulation barrel; the tops and bottoms of the heat conduction pipes are fixedly connected with circular plates bymeans of screws; each heat conduction pipe is internally provided with a kinetic energy amplifier and iron balls. When a person carrying the thermal insulation lunch box walks on the mountain, the iron balls move up and down in the heat conduction pipes so as to cause friction with the heat conduction pipes and the air; the lost heat of the thermal insulation barrel is compensated by using the heat produced by the friction, so that the heat insulation effect of the thermal insulation lunch box is better, and the farmer can have a hot meal at the noon.

Description

technical field [0001] The invention relates to the technical field of catering, in particular to a thermal insulation lunch box. Background technique [0002] The thermal insulation lunch box is an ordinary lunch box with a thermal insulation shell, which is filled with foam plastic in the inner and outer layers, and then coated with a metal film on the inner layer. [0003] Due to technical problems, the insulated lunch box cannot achieve 100% heat preservation. It can only reduce the cooling speed of the rice. When the time is longer or the external temperature is low, the heat preservation effect will be reduced, resulting in faster cooling of the rice. Therefore In autumn, because the temperature in the mountains is low, when farmers pick herbs on the mountains until noon, the temperature inside the insulated lunch box is already cold, and they need to be reheated before they can be eaten. However, in order to pick more herbs and earn more money, many farmers, He did n...

AI Technical Summary

Problems solved by technology

[0006] Aiming at the deficiencies of the prior art, the present invention provides a thermal insulation lunch box, which solves the problem that the existing thermal insulation lunch box has a weak thermal insulation effect and causes farmers to eat cold rice on the mountain

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