8results about How to "Reduce the waterproof effect" patented technology

The application belongs to the technical field of polyacrylate emulsion, and more particularly relates to a fluorine-free polyacrylate emulsion with waterproof and easy-to-clean properties, a preparation method and application thereof. The polyacrylate emulsion is prepared by first synthesizing an amphiphilic polyurethane prepolymer emulsion, then emulsifying acrylate monomers with the polyurethane emulsion and a composite emulsifier as emulsifiers to obtain a pre-emulsion, and finally adding an initiator to initiate polymerization of the acrylate monomers, so as to obtain polyacrylate latex particles with a polyurethane protective colloid shell and a hydrophobic functional component, a crosslinking component and a large steric component as the core. The layered arrangement of the polymers in the emulsion on the substrate endows the substrate with good waterproof and easy-to-clean properties. The preparation method of the polyacrylate emulsion is simple, avoids the use of fluorine-containing monomers, is suitable for industrial production, has both waterproof and easy-to-clean properties, and is suitable for waterproof and easy-to-clean finishing of various fabrics such as chemical fibers, nylon and polyester-cotton.

This invention discloses an anti-corrosion cast-in-place pile and its construction method, belonging to the field of building pile foundation engineering technology. It includes a retaining structure composed of several interconnected PVC ring units. The retaining structure is equipped with a grouting system, an anti-corrosion membrane, a reinforcing cage, and pile shoes. Each ring unit is welded into a cylindrical shape from at least three PVC plates. The grouting system includes grouting pipes, and the anti-corrosion membrane is adhered to the inner wall of the retaining structure. The reinforcing cage has pre-embedded grouting sleeves corresponding to the grouting pipes. The pile shoes are located at the ends of the retaining structure. Construction involves sequentially drilling, installing the retaining structure, applying the anti-corrosion membrane, hoisting the reinforcing cage, underwater concrete pouring, and subsequent grouting reinforcement. This invention effectively solves the problems of cast-in-place piles being susceptible to corrosion, poor construction quality, and irreparable damage in highly corrosive environments. It has advantages such as significant anti-corrosion effect, convenient construction, safety and environmental protection, wide applicability, and strong maintainability. It is suitable for highly corrosive geological environments such as coastal high-chloride salt, inland sulfate / saline-alkali, and weakly acidic environments.

The utility model relates to the technical field of ships, in particular to a fluid invasion protection device which solves the technical problems that in the prior art, a buoy of a ventilation cap for a ship oil tank is clamped or a sealing ring is aged, or the waterproof effect is reduced when a ship has an accident or is in severe weather. According to the technical scheme, a water inflow prevention device is additionally arranged below the ventilation cap, the water inflow prevention effect can be achieved when the waterproof effect of the ventilation cap is reduced, and therefore the driving safety of a ship is guaranteed; when the waterproof effect of the ventilation cap is reduced, water can be prevented from entering the ventilation cap, so that the running safety of a ship is ensured, and the ventilation effect of the oil tank is not influenced at all.

The utility model relates to the technical field of light-emitting cloth, and discloses light-emitting cloth with a waterproof function, which comprises the light-emitting cloth, a waterproof component is arranged in the light-emitting cloth and is used for improving the waterproof performance, an energy-saving component is arranged in the light-emitting component and is used for reducing the energy consumption, and the waterproof component is used for improving the waterproof performance. The waterproof assembly comprises a plurality of sets of transparent lines. According to the light-emitting cloth with the waterproof function, the energy-saving assembly is installed, the optical fiber body can be connected with the optical fiber flat cable, so that the optical fiber of the light-emitting body can normally enter the optical fiber body to achieve light emitting, the built-in wire is arranged in the optical fiber body, and before optical fiber production, the surface of the built-in wire is sprayed with the noctilucent body; when the optical fiber emits light, the noctilucent coating can continuously absorb light, on one hand, the coating can be prevented from falling off, and on the other hand, the noctilucent coating can be still in a luminous state after the luminous body is turned off, so that the energy-saving effect is achieved.

The application relates to a novel cable accessory connecting structure, which belongs to the technical field of cable systems and is used for connecting between a cable metal sheath and a cable accessory metal shell. A coaxial sleeve is arranged on the cable metal sheath, and the coaxial sleeve comprises an electrical connecting part and a waterproof part. The electrical connecting part is used for providing an electrical connecting channel between the cable metal sheath and the cable accessory metal shell, and the waterproof part is used for guaranteeing the waterproof performance between the cable outer sheath and the cable accessory metal shell. The electrical connecting part comprises a conductive layer and a spiral supporting belt arranged in the conductive layer. The electrical connecting part is spirally wound on the exposed cable metal sheath. Under the action of the spiral supporting belt pressure, the conductive layer is kept in abutting contact with the outer wall of the cable metal sheath and the inner wall of the cable accessory metal shell. The application has the effect of reducing the influence of external factors on the electrical continuity and waterproof performance between the cable metal sheath and the cable accessory metal shell.

The utility model belongs to the technical field of building lighting, and particularly provides a building facade embedded LED linear lamp device which comprises an embedded lamp groove and a lamp surface cover, the lamp surface cover is installed at the top of the embedded lamp groove, a plurality of supports are fixedly installed in the embedded lamp groove, a lamp body is detachably installed on the supports, and the building facade embedded LED linear lamp device further comprises a plurality of fixing mechanisms. The fixing mechanisms are distributed around the lamp face cover, the lamp face cover is fixedly connected with the side wall of the embedded lamp groove through the fixing mechanisms, and the top face of the lamp face cover is flush with the surface of the curtain wall. The embedded lamp groove and the arrangement that the top face of the lamp face cover is flush with the surface of the curtain wall are arranged, the integrity of the building vertical face can be guaranteed, the attractive effect is improved, meanwhile, the overall design style of a building can be prevented from being damaged, in addition, the stability and safety of the lamp are guaranteed, and the service life of the lamp is prolonged. In addition, the influence on the appearance and waterproof performance of the curtain wall is effectively reduced, the lamp face cover can be prevented from falling off through the arrangement of a plurality of fixing mechanisms, and the safety performance is improved.

The utility model relates to the field of breast pumps, in particular to a breast pump host waterproof structure and a breast pump. The breast pump main machine waterproof structure comprises a main machine and further comprises an interaction assembly used for being operated by a user and / or used for being connected with external equipment, the main machine is provided with a main machine inner cavity used for installing electric appliance components and an interaction assembly installation hole communicated with the main machine inner cavity, and the interaction assembly has or is locally flexible. The interaction assembly is connected with the interaction assembly mounting hole in an interference fit mode so as to prevent water from entering the inner cavity of the host through the interaction assembly mounting hole. According to the utility model, water is effectively prevented from entering the inner cavity of the host through the connecting gap between the interaction assembly and the interaction assembly mounting hole, so that electrical faults caused by water invasion are avoided, the requirement of additionally arranging a waterproof cover or a sealing ring is reduced, and the structure of the host is simplified.

The utility model relates to waterproof house technical field discloses a waterproof roof structure, including house wall body still including installation groove and waterproof subassembly, the top of house wall body is provided with roof surface, is provided with waterproof baffle to the opposite side water flow direction on the roof surface, is provided with water flow guide pipe to the water flow delivery on the roof surface, waterproof subassembly sets up on the roof surface, fixed installation groove opens in the inside of roof surface. Through the angle of water flow guide pipe with the connecting support plate fixed to the thread connection column in the inside of installation groove with fixed bolt, when meeting rainfall, rainwater can not rapidly, effectively discharge, prevents the partial ponding of roof. Ponding not only will increase the load of roof, increases its service life, makes rainwater can according to the change of wind direction discharge towards the most favorable direction, guarantees the smooth of drainage, prevents the long -term ponding of roof still possibly to roof structure cause damage, guarantees the influence waterproof performance of roof.