Writing case
A technology for a stationery box and a box body is applied in the field of stationery boxes, which can solve the problems of inconvenient use and time-consuming, and achieve the effect of convenient card replacement.
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[0008] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0009] Such as figure 1 As shown, the pencil case of the present invention includes: a box body 1 and an upper cover 3 fastened on the box body 1 by a hinge 2, and a pair of mutually parallel locking blocks 4 are arranged on the back side of the upper cover 3. The lower part of the inner end surface of the clamping block 4 is respectively provided with engaging slots that cooperate with each other.
[0010] When using, just insert the cards 5 such as curriculum schedules, common formulas or calculation formulas directly into the card slots of the pair of card blocks 4. When replacing, you only need to pull out the old card 5 and insert the new card 5 into the slots of the pair of blocks 4.
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