Plug-in type backflow prevention straw and container

Abstract

The invention relates to a plug-in type backflow prevention straw and a container. The plug-in type backflow prevention straw consists of an elastic straw head and a soft straw, an upper end of the soft straw is connected to the elastic straw head, a duck-billed backflow prevention valve is arranged on the top end of the elastic straw head 1, and the duck-billed backflow prevention valve is an inverted V shaped or a semi-arc shaped duck-billed backflow prevention valve composed of two valve plates, the two valves plates are laminated to form a slotted opening shape on the top end of the elastic straw head 1. During suction, the slotted opening is opened and water flows out, and when the suction stops, the slotted opening is closed instantaneously due to the resilience of an elastic material to completely isolate backflow of a liquid in an oral cavity. The plug-in type backflow prevention straw can prevent backflow, has high pollution resistance and is simple in structure and low in cost.

Description

technical field [0001] The invention relates to a water suction pipe in the field of daily necessities, in particular to a plug-in anti-backflow suction pipe and a container, which are applied in the hydraulic field and are widely used in various containers using water suction pipes. Background technique [0002] Disposable drinking water containers have been deeply popularized in our lives, and at the same time provide people with safe drinking and travel convenience. However, when people drink bottled water, the saliva and food residue in the oral cavity will flow back into the unfinished bottle due to the negative pressure, and the microorganisms will grow rapidly, so it will be unhealthy for people to drink again. At present, a small number of brands have designed squeeze-type drinking water caps on the cup lids, but because the soft sealing valve is designed in the pipeline, there are still some pipelines in the return flow range, and the valve port is generally a cross...

AI Technical Summary

Problems solved by technology

But when people drink bottled water, due to the negative pressure, the saliva and food residue in the mouth flow back into the unfinished bottle, and the microorganisms multiply rapidly, so it is not good for people's health when they drink it again.

At present, a small number of brands have designed squeeze-type drinking water caps on the cup lids, but because the soft sealing valve is designed in the pipeline, there are still some pipelines in the return flow range, and the valve port is generally a cross. Such a design cannot Completely block backflow, there will still be part of backflow into the pipeline, and because there is no return air system, high negative pressure will be formed in the bottle during the sucking process, and greater backflow will be generated at the moment of stopping sucking, and this squeeze drinking cap Complicated manufacturing, high production cost, waste caused by one-time use

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