Waterproof and breathable plug

Abstract

A waterproof and breathable plug includes a plug body having a mounting base, an air vent on the mounting base, a tubular screw rod at one side of the mounting base and arched blocks at the other side of the mounting base, a waterproof and breathable membrane covering the air vent, and a cover member having a cap nut threaded onto the arched blocks and air valves mounted in the cap nut and movable with rotation of the cap nut to adjust the open rate of the opening between each two adjacent arched blocks of the plug body and to further regulating the breathing rate.

Description

BACKGROUND OF THE INVENTION[0001]1. Field of the Invention[0002]The present invention relates to plugs for use in a waterproof box or electrical box and more particularly, to a waterproof and breathable plug, which prohibits permeation of outside water and allows ventilation of the waterproof box or electrical box to expel moisture.[0003]2. Description of the Related Art[0004]A waterproof box or electrical box has electric and electronic components mounted therein. The box body may be made of metal. When outside water molecules enter the box body or during exchange between hot air and cold air in the box body, the internal electric and electronic components may get rusted. In order to expel internal moisture, an electrical box generally provides a through hole and a waterproof and breathable plug mounted in the through hole. A conventional waterproof and breathable plug for this purpose is known comprising a plug body defining therein a air passage, a hollow cap nut fastened to plug...

AI Technical Summary

Benefits of technology

"The present invention provides a waterproof and breathable plug that can be used in an electrical box to prevent water from entering while still allowing breathing. The plug has an adjustable breathing rate to fit different weather conditions and can be installed without damaging the waterproof and breathable membrane. Additionally, the invention allows for the use of added waterproof and breathable membranes to enhance waterproof effects. The plug can be used in any waterproof electrical box and includes a cover member that can be opened and closed to control the air exchange. The cushion ring holds the membrane in place and multiple membranes can be used for enhanced waterproof effects."

Problems solved by technology

When outside water molecules enter the box body or during exchange between hot air and cold air in the box body, the internal electric and electronic components may get rusted.

Further, it is difficult to insert the thin waterproof and breathable membrane into the inside of the air passage and then to fixedly secure the thin waterproof and breathable membrane in place.

During installation, the thin waterproof and breathable membrane may be damaged easily.

After a long use, the adhesive may be aged and fall out of place to clog the air passage.

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