3results about How to "Seal reached" patented technology

The invention discloses a rubber and plastic composite retaining dam bag material as well as a preparation method and application thereof, and belongs to the technical field of rubber retaining dams. The rubber and plastic composite retaining dam bag material sequentially comprises a rubber sealing filling layer, an ultra-high molecular weight polyethylene fiber layer, a bonding transition layer and an ultra-high molecular weight polyethylene protection layer from inside to outside. The thickness of the rubber sealing filling layer is 3.2 + / -0.2 mm, the thickness of the ultra-high molecular weight polyethylene fiber layer is 10 + / -0.5 mm, the thickness of the bonding transition layer is 1 + / -0.1 mm, and the thickness of the ultra-high molecular weight polyethylene protection layer is 10 + / -0.5 mm. The rubber and plastic composite retaining dam bag material has the advantages of aging resistance, wear resistance, impact resistance and stable chemical property, the service life of a dam bag can be effectively prolonged, and meanwhile, the maintenance and management cost is reduced.

This invention discloses a liquid nitrogen storage tank with liquid level and temperature monitoring, belonging to the technical field of liquid nitrogen storage equipment. It includes a tank body with an inlet pipe connected to the upper outer wall and a drain pipe connected to the lower outer wall, with a drain valve connected to the drain pipe. A dual-point level gauge and a temperature monitor are also connected to the tank body. A through hole is opened in the upper part of the tank body, and a basket assembly is movably embedded in the through hole. A semen storage tube is installed inside the basket assembly, and a sealing cap is threaded to the upper part of the semen storage tube. A seal is formed between the upper part of the basket assembly and the through hole. A locking component is provided in the upper part of the tank body, and the locking component is movably fitted with the upper part of the basket assembly. This invention not only achieves sealing, locking, and opening of the basket assembly during insertion into the tank, but also unlocks, closes, and seals the basket assembly when it is removed from the tank, avoiding the problem of low-temperature nitrogen overflowing from the tank, causing frostbite to workers' hands, and preventing waste.

This utility model relates to the field of inflatable decorative lights, specifically an inflatable decorative lamp, comprising an inflatable, expandable bladder made of plastic, with a wire outlet on the bladder, and a conductive wire wrapped with rubber. A sealing section is integrally formed on the outside of the conductive wire, and a welding plate is provided on the outside of the sealing section. The welding plate is fused to the inflatable bladder and covers the outer ring of the wire outlet to seal it. One end of the conductive wire extends into the inflatable bladder, and the other end is outside the inflatable bladder. The end of the conductive wire inside the inflatable bladder is connected to a light source, and the end of the conductive wire outside the inflatable bladder is connected to a power source or plug. This utility model ensures a sealing effect within a cavity while facilitating the arrangement of the light source.