Foldable tray device for gas cylinder of stove

A foldable tray device for a gas cylinder of a stove, the foldable tray device comprising a tray body, a connecting rod and a base, wherein a plurality of universal wheels are arranged at a lower end of the tray body, the connecting rod has a first end fixed to a side wall of the tray body and a second end hingedly coupled to the base, a locking mechanism is arranged between the second end of the connecting rod and the base, and a fixing mechanism configured to be connected to a frame of the stove is arranged on the base,

• wherein a plurality of supports are fixed to the side wall of the tray body, and the plurality of universal wheels are respectively fixed to the supports in a one-to-one manner such that the plurality of universal wheels are radially outward from the tray body,
• wherein an accommodating cavity is formed in the tray body and vertically penetrates through the tray body, a butterfly bolt is screwed on at least one of the supports, a tail end of the butterfly bolt sequentially penetrates through the at least one of the supports and the tray body to extend into the accommodating cavity, and a contact piece is fixed to the tail end of the butterfly bolt.