High polymer coating backflow protection device capable of automatically working based on flowing direction

Abstract

The invention provides a high polymer coating backflow protection device capable of automatically working based on the flowing direction. The device comprises a discharging pipe. The top of the base is rotationally connected with a moving seat. A blocking plate is movably connected in the moving seat in an inserted manner, and a through hole is formed in the blocking plate. The outer side of a rotating shaft is movably connected with an impeller in a sleeved manner. The back face of the rotating shaft is fixedly connected with a rotating disc. Evenly-distributed driving levers are arranged onthe ring side wall of the rotating disc. The top of the moving seat is fixedly connected with cylinders corresponding to the driving levers. When backflow happens in the discharging pipe, coating wells up to drive the impeller to rotate anticlockwise, the impeller drives the rotating shaft and the rotating disc to rotate, the rotating disc drives the moving seat to rotate through the driving levers and the cylinders, and therefore the moving seat rotates anticlockwise; and when a groove in a clamping groove is aligned to a slope segment on the blocking plate, the blocking plate shifts, the through hole and the discharging pipe are staggered to block the discharging pipe, coating is prevented from continuing to flow out, and the problem that when backflow happens to the discharging pipe, discharging continues, and consequently coating is wasted is effectively solved.

Description

technical field [0001] The invention relates to the technical field of polymer coatings, in particular to a backflow protection device for polymer coatings that works automatically based on flow direction. Background technique [0002] Polymer coatings are mainly divided into solvent-based coatings and water-based coatings. Water-based coatings use water as a solvent and are in an amorphous liquid state at room temperature. After being applied, they can form substances with certain thickness and waterproof functions on the surface of the structure. Water-based coatings are widely used in the construction field due to their non-flammable, non-polluting, waterproof and breathable functions. [0003] Polymer water-based paints are generally stored in barrels. During the production, packaging and actual use, the paints are often loaded into barrels, and the produced paints are delivered to individual paint barrels through the feeding tube. Internally, when filling the bucket, i...

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Problems solved by technology

[0003] Polymer water-based paints are generally stored in barrels. During the production, packaging and actual use, the paints are often loaded into barrels, and the produced paints are delivered to individual paint barrels through the feeding tube. Internally, when filling the bucket, if the staff does not pay attention to observation, or the transmission of the paint bucket fails, causing a single paint bucket to stay under the feeding pipe for too long, it will cause the filling of the paint bucket to be too slow, and the paint will flow backwards. Bucket overflows, causing waste

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