Expandable storage tank

Abstract

The invention provides an expandable storage tank. The storage tank comprises a drive frame and an elastic sleeve covering the outer side of the drive frame, wherein the drive frame comprises an upperfixed tray, a lower fixed tray and a plurality of expansion structures, each expansion structure comprises an upper expansion rod and a lower expansion rod, the upper ends of the upper expansion rodsare hinged with the upper fixed tray while the lower ends are first free ends, the lower ends of the lower expansion rods are hinged with the lower fixed tray while the upper ends are second free ends, a container is located in the drive frame, each expansion structure also comprises an upper propping rod and a lower propping rod, two opposite ends of each upper propping rod are hinged with the container and the corresponding upper expansion rod respectively, two opposite ends of each lower propping rod are hinged with the container and the corresponding lower expansion rod respectively, a feeding port is formed in the upper fixed tray, an inlet directly facing the feeding port is formed in the upper end surface of the container, and when the storage amount of the container is increased,the container sinks to enable the expansion structures to open outwards so as to support the elastic sleeve, and the elastic sleeve expends outwards. The expandable storage tank has the benefits as follows: the market blank is filled up and the shape of the expandable storage tank can change with the change of the storage amount.

Description

technical field [0001] The invention relates to the technical field of equipment for storing objects and money, in particular to a storage tank that can grow up. Background technique [0002] Storage jars are the most common accommodating devices in life, such as money saving piggy banks for storing coins. In addition to storing coins, modern piggy banks also have the function of decorating the home. Many parents are used to buying piggy banks for their children to cultivate their savings and financial management skills and improve their awareness of thrift. After investigation, it is found that there are many products and different shapes in the piggy bank market today, but there is no piggy bank that can automatically grow the piggy bank itself along with the increase in the number of stored coins. Contents of the invention [0003] In view of this, the embodiment of the present invention provides a piggy bank that can fill the gap in the market and can automatically g...

AI Technical Summary

Problems solved by technology

After investigation, it is found that there are many products in the piggy bank market today, with different shapes, but there is no piggy bank that can automatically grow the piggy bank itself as the number of stored coins increases.

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