Vacuum gas distribution disc with high sealing performance and adjustable pumping speed

Abstract

The invention discloses a vacuum gas distribution disc with high sealing performance and adjustable pumping speed. The gas distribution disc comprises a vacuum gas distribution disc body, wherein thevacuum gas distribution disc body comprises a central shaft, a base plate, a lower gas distribution disc, an intermediate gas distribution disc, an upper gas distribution disc, a deflation seat and agas suction disc. The upper side of the central shaft is fixedly connected to the base plate, the upper side of the base plate is movably connected to the lower gas distribution disc, and the upper side of the lower gas distribution disc is provided with the intermediate gas distribution disc. The upper side of the intermediate gas distribution disc is fixedly provided with the upper gas distribution disc, and the upper side of the upper gas distribution disc is connected to the deflation seat in the detachable mode. The upper side of the deflation seat is movably connected to the gas suctiondisc, and the outside of the gas suction disc is fixedly connected with a speed regulation mechanism. The vacuum gas distribution disc is provided with a sealing sleeve. In the gas pumping process ofthe gas suction disc, the sealing sleeve on the outside can prevent external gas from entering the gas suction disc. The sealing sleeve is designed into a wave structure and can be changed with vertical movement of a piston in the gas suction disc, so that the sealing effect can be improved.

Description

technical field [0001] The invention relates to the technical field of vacuum machines, in particular to a vacuum gas distribution plate with high sealing performance and adjustable pumping speed. Background technique [0002] In the process of vacuuming the packaging bag, the vacuum machine needs to extract the gas inside the packaging bag through the vacuum gas distribution plate, which has achieved the purpose of vacuum. The traditional vacuum gas distribution plate will cause vacuum separation during long-term use. The airtightness of the air tray becomes poor, resulting in slower vacuum pumping speed, and prone to incomplete vacuum, which leads to corruption of the items in the package and affects the shelf life of the items. For this reason, need to design a new scheme to give improvement. Contents of the invention [0003] The purpose of the present invention is to provide a vacuum gas distribution tray with high sealing performance and adjustable pumping speed, wh...

AI Technical Summary

Problems solved by technology

[0002] In the process of vacuuming the packaging bag, the vacuum machine needs to extract the gas inside the packaging bag through the vacuum gas distribution plate, which has achieved the purpose of vacuum. The traditional vacuum gas distribution plate will cause vacuum separation during long-term use. The airtightness of the air tray becomes poor, resulting in slow vacuum pumping speed, and prone to incomplete vacuum, which leads to corruption of the items in the package and affects the shelf life of the items

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