Container structure of anti-accident packing box for self-heating products

Abstract

The invention discloses a novel self-heating product anti-accident packing container inner container structure. As the design ideals of high strength and high rigidity are adopted, after a packing container is suffered from such accident environments as falling, a main structure of an inner container and a sealing structure are in good condition without leaking harmful materials; the inner container is positioned in a buffer part on overall structure to reduce the size of the sealing structure; the inner container adopts the design concepts of high strength and high rigidity to guarantee reliability of the sealing structure under accident environments; under the precondition of guaranteeing the strength and the rigidity, a reinforcing rib structure is adopted to relieve the weight of the inner container as far as possible; the high-temperature influence is eliminated to adopt the following measures: an upper cover cutter edge, a base cutter edge and a metal gasket mutually extrude for installation to realize high-temperature sealing; a specific disc-shaped spring is provided for eliminating the influence caused by thermal deformation to realize stable and reliable sealing; and a layer of high-temperature lubricant is coated on a thread for preventing the blockage phenomenon of contacted surfaces between a screw and a base screw hole by the effects of high-temperature thermal expansion and heat erosion.

Description

technical field [0001] The invention belongs to the field of product packaging, and in particular relates to an inner container structure of an anti-accident packaging box for self-heating products. Background technique [0002] In the stage of high-altitude transportation, the anti-accident packaging box and its contents may be in severe accident environments such as falling from high altitude, fire, and flooding (such as the packaging box falling from the transport plane and then encountering the harsh environment of fire). Under the above-mentioned abnormal accident environment, the anti-accident packaging box must ensure the safety of its shipping contents. [0003] The main function of a typical accident-resistant packaging box is to resist the impact of abnormal accident environments such as high-altitude drop, fire, and water immersion, and reduce the damage of payload components in abnormal environments; if the payload contains radioactive substances, the inner conta...

AI Technical Summary

Problems solved by technology

[0006] 1. The design of the sealing structure is difficult: this is because the buffer component is inside the inner container, resulting in a larger size of the inner container, and the corresponding larger size of the sealing structure, which increases the difficulty of sealing design;

[0007] 2. The rubber sealing structure used cannot meet the high temperature sealing requirements: the temperature tolerance range of most rubbers is below 250°C, which cannot meet the sealing requirements under higher temperature conditions;

[0008] 3. The thin wall of the container will be obviously deformed under high-speed impact, and it cannot be reused: the design concept of the inner container is to absorb energy through the deformation of the inner container, so the wall thickness of the inner container is relatively thin, and it will deform when it is subjected to accidents such as falling even damaged

[0010] 1. The kinetic energy generated by the inner container itself is also large when it is hit at high speed, which endangers the safety of the product: this is because the inner container adopts a thick-walled design to ensure the integrity of the inner container in accidents such as falling, so as to ensure the safety of the inner container. Sealing, which causes its own mass to be large, and the kinetic energy generated by itself is also large when it is hit by high speed;

[0011] 2. The sealing performance is not stable enough: this is due to the difference in thermal deformation of the inner container box, screws and other parts under high temperature conditions, and the structure of the screw plus spring washer cannot well compensate for the deformation difference, resulting in a decline in sealing performance ;

[0012] 3. The contact surface between the screw and the threaded hole of the base is subject to high temperature thermal expansion and thermal erosion, which is easy to get stuck and difficult to disassemble

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