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, each lower expansion rod comprises a connecting part in linked connection with the corresponding upper expansion rod and a bent part located at the lower end of the connecting part, the bent parts and the upper expansion rods are hinged withthe lower fixed tray and the upper fixed tray respectively, a container is located in the drive frame, an extension part corresponding to each bent part extends inwards from the bent part to be hingedwith the container, 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 thecontainer is increased, the container drives the extension parts to sink to enable the expansion structures to retract inwards so as to support the elastic sleeve, and the elastic sleeve retracts inwards. 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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