Plastic packaging box

Abstract

The invention discloses a plastic packaging box. The box comprises a shell and a cover plate, wherein an anti-rolling mechanism is arranged on the shell, and a vertical limiting mechanism is fixedly mounted in the middle of the lower surface of the cover plate. The anti-rolling mechanism comprises an air inlet nozzle, a check valve, a first pipe, a containing cavity, a strip-shaped air bag, sealing tear tape and a connecting mechanism. The air inlet nozzle is formed in the bottom end of the side surface of one end of the shell. The check valve is arranged at the position, close to the air inlet nozzle, of the side wall of the shell. One end of the check valve is fixedly connected with the first pipe. According to the plastic packaging box, by arranging the anti-rolling mechanism, a spherical object can be effectively fixed and protected through the strip-shaped air bag, the fixing stability of the spherical object is improved, the problem that the spherical object breaks away due to vibration in the transportation process is solved, and meanwhile, as the strip-shaped air bag is arranged in the containing cavity when not inflated, the packaging boxes can be stacked and carried conveniently, and use is convenient to carry out.

Description

technical field [0001] The invention relates to the technical field of packaging boxes, in particular to a plastic packaging box. Background technique [0002] For thousands of years, with the changes of the times and the improvement of technology, China's packaging box industry has undergone earth-shaking changes. It plays an irreplaceable and important role in the world's packaging box industry. With the development of technology, the market demand has gradually changed from the traditional The packaging box is changing to a combination plastic packaging box. The combination plastic packaging box has the advantages of safety and operability, and will gradually replace the traditional packaging box in the future. [0003] Existing patent (notification number: CN207174434U) a kind of plastic packing box, comprises box body and box cover, forms storage cavity between described box body and box cover; Described box body is surrounded by bottom surface and side, and described s...

AI Technical Summary

Problems solved by technology

[0004] In the process of realizing the present invention, the inventor found that at least the following problems in the prior art have not been solved: the prior art can fix items of various sizes and shapes by setting springs to cooperate with the fixing pieces, so as to protect the items from damage, but For spherical objects, especially some more expensive and larger objects, such as spherical robots, using the springs of the prior art to fix with the fixing piece will make the fixing stability poor, and the vibration during transportation will easily make the The spherical object breaks away from the fixing piece, and when the packaging box receives an external force, it is easy to damage the spherical object. At the same time, the existing technology cannot adjust the fixing device according to the size of the object, resulting in only objects of the same type can be fixed. This makes the fixing device less versatile and inconvenient to use

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