Waterproof and moisture-proof packaging box for elevator equipment
A packaging box and equipment technology, applied in the field of elevator packaging, can solve the problems of inflexible use, poor waterproof performance and high cost, and achieve the effects of flexible use, improved rainproof performance and reduced weight
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Embodiment 1
[0033] Example 1, such as Figure 1-2 As shown, a heavy-duty waterproof corrugated cardboard for elevators comprises a lining paper 1, a middle corrugated support layer 2 and a face paper 3 which are sequentially bonded from the inside to the outside. The gram weight, the gram weight of the facial tissue 3 is more than 200 grams / square meter. The grammage of each sheet of paper involved in the middle corrugated support layer 2 should exceed 100 grams per square meter.
[0034] Both the lining paper 1 and the surface paper 3 can be American cardboard and preferably have a flat and solid structure. The middle corrugated support layer 2 is a support layer structure with corrugated paper. The lining paper 1 can better protect the inner elevator and For related equipment, the inside and outside of the corrugated cardboard refers to the direction of the inside and outside of the package after the corrugated cardboard is made into a package such as a box or box, that is, the directi...
Embodiment 2
[0045] Example 2, such as Figure 3-9 As shown, a waterproof and moisture-proof packaging box for elevator equipment includes a box body with an opening facing upwards and a box cover b with an opening facing down and can cover the upper opening of the box body. The box body includes a box bottom c and is installed on The box body a on the upper side of the box bottom c, the box body a and the box cover b are all corrugated cardboard bodies. The box body a and the box cover b are made of corrugated cardboard, and the corrugated cardboard in this embodiment can adopt various schemes of the corrugated cardboard structure in Example 1 as the main packaging box covering structure, and the bottom c of the box is due to There can be more options at the bottom of the structure. The box body a is the part of the main support between the top and bottom of the box, and the box cover b is closed at the upper opening of the box body, that is, the box cover b covers the upper opening of t...
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