70results about How to "Guaranteed waterproof sealing" patented technology

The invention provides a reaction bonding wet-laid polymer waterproof coiled material and a preparation method thereof, belonging to the technical field of waterproof materials. The waterproof membrane includes a polyolefin thermoplastic elastomer base layer on the upper layer, a modified asphalt adhesive layer in the middle, and an isolation film protection layer on the lower layer. The polyolefin thermoplastic elastomer is mainly made of the following raw materials: polyisobutylene, ethylene and octene copolymer, ethylene-propylene rubber, modified polypropylene, antioxidant, anti-aging agent, softener, filler; the preparation method is to prepare the modified asphalt binder and polyolefin thermoplastic elastomer respectively , bond the two with heat and pressure, control the thickness and set the shape, cover the protective layer of the isolation film, and wind up. The waterproof membrane is made of modified asphalt binder to make a base layer with more suitable performance, by increasing the crack resistance of the base layer and increasing the bonding force between the modified asphalt binder and the base layer, avoiding the appearance of the membrane Cracks ensure the waterproof sealing effect of the membrane.

The invention discloses a household intelligent glass cup heating stirring machine comprising a cup lid, a glass cup positioning mechanism, a coupler, a stirring rod and a host. The cup lid is formed by a cup lid cap, a cup lid cap stainless steel ring, a cup lid cap sealing ring, a cup lid decorative stainless steel ring, a plastic cup lid main body, an inner lid sealing ring, an inner lid fixing ring, a stainless steel inner lid and a cup lid sealing ring; the glass cup positioning mechanism is formed by a glass cup, a cutter shaft assembly, a heating disc hardware ring, a heating disc, a heating disc sealing ring, a nut, a heating disc fixing plate, a cup seat sealing ring and a cup seat; and the cutter shaft assembly is formed by a stirring cutter, a cutter shaft, a cutter shaft sleeve, an oil seal, a bearing, a supporting member, a cutter shaft sealing ring, a jump ring and a connection head. The household intelligent glass cup heating stirring machine is smartly designed, can be conveniently used, has long service life, stable performance and safety and reliability, and is energy-saving and environment protective.

The invention relates to the technical field of teaching devices, and discloses an electronic learning device for Chinese education, comprising: a protective case and a protective base, the main body of the learning machine is arranged in a cavity formed by the protective case and the protective base, and the protective case and the protective base The rear side of the protective shell is hinged, the upper end surface of the protective base has a first groove, the first groove runs through the inner side wall of the protective base, the lower end surface of the protective shell has a boss, and the bottom wall of the first groove is fixedly connected with an elastic member. The left and right sides of the elastic member are provided with sealing plates, the elastic member is arranged between the first groove and the first sealing strip, the lower end surface of the boss is fixedly connected with the second sealing strip, and the contact between the protective shell and the protective base is respectively provided with There are a first sealing ring and a second sealing ring, and the present invention uses the tight fit between the first sealing strip and the second sealing strip arranged between the protective shell and the protective base, and through the sealing strips not provided between the protective shell and the protective base. A sealing ring is set at the position to ensure the effect of waterproof sealing and improve the performance of the main body of the learning machine.

The invention relates to an LED lamp with an inserting type wire outlet position waterproof structure. The wire outlet positions of an existing waterproof LED lamp are usually connected through screws or buckles, and therefore the waterproofness or the tensile strength is poor. The LED lamp comprises a base, a cover and an LED lamp panel, the base is provided with the wire outlet position waterproof structure with wire outlets and sliding blocks, the wire outlets and the sliding blocks are provided with upper threads and lower threads respectively, and the wire outlets and the sliding blocks are clamped tightly through the upper threads and the lower threads to form channels allowing wires to extend outwards, so that sealing and waterproofness of the wire outlet positions are achieved. Clamping parts in the original structure are formed by the sliding blocks and the wire outlets, the connecting modes between the clamping parts are changed from an original screw connecting mode and an original button stand connecting mode to an inserting connecting mode, the connecting portions of the sliding blocks and the connecting portions of the wire outlets have connecting strength and waterproof sealing performance due to the fact that the sliding blocks and the wire outlets are connected in the inserting mode, the tensile strength of the wires is guaranteed, and therefore the wires cannot be separated from the LED lamp panel even if external force is exerted on the wires.