53results about How to "Has a barrier effect" patented technology

The invention discloses a soundproof door. The soundproof door comprises a frame and door panels, a mounting groove matched with the door panels is formed in the frame, two door panels are arranged, the two door panels are rotatably connected with the frame, the opening directions of the two door panels face the outer side of the frame, the opening rotation directions of the two door panels are the same, the frame is integrally formed, and an air pipe communicated with the outside is arranged above the middle of the frame. When one door panel is closed and then the other door panel is closed,gas between the two door panels is compressed, and the gas flows to the outside through the air pipe; since both the door panels are in the closed state, the overall sound insulation effect of the soundproof door is improved.

The invention discloses a protective isolation garment for medical rescue. The protective isolation garment comprises a protective isolation garment body composed of an upper garment, a pair of trousers, a head mask and gloves, which are integrally connected; a zipper for put-on and take-off is arranged on the protective isolation garment body; a top fly used for shielding the zipper is arranged outside the zipper; the front portion of the head mask is provided with an opening; the lower half section of the opening is connected with a mouth mask through a bonding buckle; the protective isolation garment body, the top fly and the mouth mask are all made of a composite non-woven fabric; the composite non-woven fabric comprises a thermoplastic elastomer base layer; and the upper surface of the thermoplastic elastomer base layer is connected with a polyamide non-woven fabric surface layer through an adhesive layer. Through the protective isolation garment body consisting of the upper garment, the trousers, the head mask and the gloves, which are integrated, and the mouth mask, rescue personnel can be effectively protected and isolated; and the thermoplastic elastomer base layer of thefabric of the protective isolation garment body has the advantages of rubber and plastics, and has good isolation and protection effects on dangerous blood.

A gauze mask is prepared by weave or nonwoven material which can adapt to conformation features of faces, which is provided with a nasal dent, or a nose positioning space, an extended chin space, and an area which is closely attached to face, the invention can be used in a medical environment, or general public. The gauze mask can reach stabilization and closely match with faces through a holdingband whose positioning has a little elasticity, an upper band is located on a position from the upper nose portion to the top portion of an ear, a lower band is located on a position from a middle point of the gauze mask to the lower portion of an ear, and the band forms a ring which surrounds ears. Each force and each vector of the whole gauze mask are directed to the periphery of a balanced point of the gauze mask, and any movements on a direction of the gauze mask can be totally offset by each force on other directions. In addition, the gauze mask can inhibit and kill nanometer technology antibacterial component through combing, which can prevent a wearer from contacting pollen and the similar allergens, and provide a protection which avoids cross contamination and affection.