2 results about "Porous fiber" patented technology

The invention discloses a noise reduction air duct of an axial flow fan, and relates to the technical field of axial flow fans, the noise reduction air duct comprises a main body device, the axial flow fan is arranged in the main body device, an external protective sleeve is arranged on the outer wall of the axial flow fan, and a bearing adjusting support is arranged below the external protective sleeve; an auxiliary rubber cushion layer is arranged in the axial flow fan, a porous fiber silencing layer is fixedly connected to the inner wall of the auxiliary rubber cushion layer, and a vacuum sound insulation layer is arranged on the inner wall of the porous fiber silencing layer. Noise is eliminated and absorbed through the porous fiber noise reduction layer, the vacuum sound insulation layer, the built-in sound absorption cotton layer and the noise reduction and sound absorption grid layer, and the problem that the working efficiency and rest quality of a user are seriously affected by noise generated in the using process of an existing axial flow fan is solved. And the transmitted noise vibration is captured through the interior of the noise reduction and sound absorption grid layer, so that the noise reduction and sound attenuation effects during operation of the axial flow fan are further ensured.

The invention discloses a liquid package comprising a packaging container, an inner plug and a fiber body. The inner plug is mounted on an opening of the packaging container and is provided with at least two guiding holes for communicating the inside of the packaging container with the outside; the fiber body is installed at the upper end of the inner plug, the lower end of the fiber body covers the guiding holes, one side of the fiber body is connected with at least one conveying tooth, and the conveying teeth and the fiber body are both of porous fiber block structures; when the liquid package is tilted to pour liquid, the liquid in the packaging container flows out of the fiber body through at least one guiding hole, and outside air is supplied to the inside of the packaging container through the at least one remaining guiding hole. In the using process, the liquid flows out to enter the fiber body through the guiding holes, the outside air enters the inside of the packaging container from partial guiding holes, reduction of the internal pressure of the packaging container is avoided, the liquid can continuously flow out, and porous fibers can stabilize the flow rate of the liquid. According to the scheme, stable liquid discharging can be achieved without manually extruding the liquid package, the liquid package is convenient to use, and the liquid package has the good use experience.