Exhaust packaging film

Abstract

The utility model provides an exhaust packaging film which comprises a packaging film body, an exhaust part and a controller, the exhaust part is arranged on the front portion of the packaging film body, a cavity is formed in the middle of the exhaust part, an air pump is arranged on the side face of the exhaust part, the cavity is communicated with the interior of the packaging film body through a first electronic valve, and a plurality of second electronic valves are arranged on the side face of the exhaust part. The multiple second electronic valves are connected with an exhaust pipe, multiple exhaust holes are formed in the exhaust pipe, an opening part is formed in the rear portion of the packaging film body and comprises an upper closing part and a lower closing part, a circular groove is formed in the bottom face of the upper closing part, a circular protruding strip is arranged on the top face of the lower closing part, and the groove and the protruding strip are in interference fit and have the opening, closing and sealing functions. The multiple exhaust pipes are arranged in the packaging film body, the multiple exhaust holes are formed in the exhaust pipes and distributed in all the positions in the packaging film body, the problem that the exhaust holes are blocked by objects can be avoided, air in all the positions can be smoothly exhausted, the exhaust time is saved, and therefore the exhaust efficiency is improved.

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