A multi-layer folding chemical tray

Abstract

The invention discloses a multilayer folded chemical tray. The multilayer folded chemical tray comprises a left tray bottom and a right tray bottom, wherein the left tray bottom and the right tray bottom are hinged with oblique blocks through first rotary shafts; the corresponding oblique blocksarefixedly connected with the surface of the left tray bottom through bolts and hinges; the corresponding oblique blocksarefixedly connected with the surface of the right tray bottom through bolts and hinges; a spring is fixedly connected between two ports of each hinge; the bottom part of the left tray bottom is fixedly connected with a first fixed block; a chute is arranged in the first fixed block; an inner chamber of the chute is glidingly connected with a slider; a first connecting rod, a second connecting rod and a third connecting rod are arranged on the right side of the slider sequentially from left to right. By means of the first connecting rod, the second connecting rod and the third connecting rod, 90-degree included angles can be formed between the second connecting rod and the first connecting rod as well as between the second connecting rod and the third connecting rod, the size of the tray can be reduced by half, and the chemical tray can be folded.

Description

technical field [0001] The invention relates to the technical field of teaching equipment, in particular to a multilayer folded chemical tray. Background technique [0002] Chemical trays refer to trays that can be used to hold chemical reagents and instruments. Chemical trays are often used in chemical experiment classes. When conducting chemical experiments, there are many types of chemical reagents and instruments that need to be used. Currently, chemical trays It cannot be folded, which increases the occupied area of ​​the chemical tray, making it inconvenient to carry and carry the chemical tray, so that the chemical tray is placed in a special storage device when not in use, and a small amount of dust will be generated at the tray mouth, which is not conducive to chemical re-use of pallets. Contents of the invention [0003] The object of the present invention is to provide a multi-layer folded chemical tray to solve the problems raised in the above-mentioned backgr...

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Problems solved by technology

[0002] Chemical trays refer to trays that can be used to hold chemical reagents and instruments. Chemical trays are often used in chemical experiment classes. When conducting chemical experiments, there are many types of chemical reagents and instruments that need to be used. Currently, chemical trays It cannot be folded, which increases the occupied area of ​​the chemical tray, making it inconvenient to carry and carry the chemical tray, so that the chemical tray is placed in a special storage device when not in use, and a small amount of dust will be generated at the tray mouth, which is not conducive to chemical reuse of pallets

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