Non-shoulder-carrying device for school supplies

Abstract

The invention provides a non-shoulder-carrying device for school supplies. The non-shoulder-carrying device comprises an upper folding bag, universal wheels, inner buckles, side buckles, reinforcing rods, an upper clamping plate and a lower clamping plate. A lower folding bag is hinged to the lower part of the upper folding bag; an upper chain seam is vertically formed in the middle of the upper folding bag; the upper sliding groove is divided into a left position and a right position and is formed in the two sides of the front lower portion of the upper folding bag, a lower chain seam is vertically formed in the middle of the lower folding bag, the two sides of the front portion of the upper surface of the lower folding bag are provided with locking block grooves respectively, a lower sliding groove is formed in the upper portion of the lower folding bag, and lower locking handles are fixedly connected to the two sides of the lower folding bag. The upper folding bag and the lower folding bag can be unfolded and thus the upper folding bag and the lower folding bag form a high double-layer bag body. The lower end of the lower folding bag is provided with the universal wheels; aftera telescopic rod is unfolded, a student can pull the telescopic rod to walk, so that situations that the spine protrudes backwards, protrudes laterally, inclines forwards or twists because the knapsack is too heavy, muscles are possibly fatigued due to extreme tension, and the neck, shoulders and the back are easily injured are avoided.

Description

technical field [0001] The invention belongs to the technical field of school supplies, and more specifically relates to a non-shoulder carrying device for school supplies. Background technique [0002] With the continuous improvement of the social education system, the society's education for students is more stringent. In order to improve their academic performance, the school will prepare a lot of homework and learning materials for students. After many investigations and interviews, the company found that the backpack weight of ordinary junior high school students is 10 It weighs about five catties. Sometimes before the holidays, students are used to bringing more learning materials and textbook homework home. If they are carried in traditional schoolbags, it will be very tiring for students to walk with backpacks. The weight of schoolbags should not exceed three-twentieth of the body weight, otherwise it will seriously hinder the growth of bones. Overweight backpacks an...

AI Technical Summary

Problems solved by technology

[0004] Based on the retrieval of the above-mentioned patents, combined with the structure in the prior art, it is very inconvenient for students to use this schoolbag to carry more textbooks and homework when the schoolbag is approaching the holiday period. Kyphosis, scoliosis, anteversion, or twisting

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