7results about How to "Anti-pollution" patented technology

The utility model relates to the technical field of sampling bottles, and provides a sampling bottle drying device for detecting granularity of an oil sample, which comprises a box body, a drying box, a drying component and a drying device, wherein the drying box is fixedly arranged at the top of the box body; the drying assembly comprises a drying mechanism, a nitrogen cleaning mechanism, a lifting mechanism, a rotating mechanism, a plurality of spraying pipes, a U-shaped pipe and a plurality of connecting pipes fixedly installed on the outer side wall of the U-shaped pipe. A motor drives a lead screw to rotate in a sliding groove plate, a spraying pipe is adjusted upwards to stretch into a sampling bottle, gas in a filtering shell is extracted through a first air pump to be used for conducting hot air drying on the interior of the sampling bottle, and nitrogen in a nitrogen box is extracted through a second air pump to be used for cleaning the interior of the sampling bottle; and during air blowing and nitrogen blowing, the first gear is driven by the motor to rotate, and the second gear in linkage meshing connection drives the spray pipe to rotate on the rectangular frame, so that the drying and cleaning efficiency of the sampling bottle is effectively improved.

The application discloses a preparation method of a nanofiltration membrane with high chlorine resistance and pollution resistance. The nanofiltration membrane is prepared by the following steps: on the basis of an activated polytetrafluoroethylene microporous membrane, sequentially performing impregnation of an amine monomer and an acyl chloride monomer, then performing heat treatment, then grafting an amine group containing cyclic substance, and finally introducing a quaternary ammonium modification. The nanofiltration membrane prepared by the method has a magnesium sulfate retention rate of 98.0% after exposure to 24000 ppm.h of active chlorine, and the water flux recovery rate of bovine serum albumin is 95.0%, which is almost unchanged compared with that before exposure. It is shown that the nanofiltration membrane has excellent chlorine resistance and good pollution resistance.

The utility model provides a photovoltaic frame and a photovoltaic assembly, relates to the technical field of photovoltaic parts, and aims to solve the problem that the flow velocity of metal on an A surface is unstable easily in the extrusion forming process of the conventional photovoltaic frame. The photovoltaic frame comprises a surface A, a surface B, a surface C and a surface D which are sequentially arranged, a rectangular cavity is formed among the surface B, the surface C and the surface D, a mounting notch is formed between the surface A and the rectangular cavity, a photovoltaic panel is inserted into the mounting notch, the rectangular cavity is provided with a supporting cavity wall adjacent to the mounting notch, and the photovoltaic frame is provided with a glue overflowing structure. The glue overflowing structure is arranged on the surface, facing the mounting notch, of the supporting cavity wall. According to the utility model, in the forming process of the photovoltaic frame, the flow velocity of metal for extruding and forming the photovoltaic frame is more stable at the position of the A surface.

The utility model discloses a watch comfortable to wear. The watch comprises a watch dial. The first watchband and the second watchband are used for wearing the watch dial, the first watchband is arranged at one end of the watch dial, and the second watchband is arranged at the other end of the watch dial; the comfort mechanism is used for improving the comfort between the watch dial and the skin of the wearer and comprises an arc-shaped plate matched with the wrist of the wearer, and a plurality of elastic telescopic assemblies arranged at equal intervals are arranged at the edge of the top of the arc-shaped plate. According to the utility model, by arranging the arc-shaped plate, the arc-shaped plate can adapt to the wrist of a patient, so that the comfort when the arc-shaped plate is in contact with the wrist of a wearer is improved, and by arranging the elastic telescopic assembly, the buffer effect when the arc-shaped plate is in contact with the wrist of the wearer is improved, so that the wearing comfort of the watch is improved; through the arrangement of the comfortable pad, the contact between the watch dial and the wrist of a wearer is refreshed and comfortable, so that the practicability of the watch is improved to a great extent.

The utility model discloses a boron carbide ceramic coating nuclear radiation prevention garment which comprises an upper garment, trousers, a cap and a face mask, the upper garment, the trousers and the cap respectively comprise an outer wrapping layer, a boron carbide ceramic coating layer of a middle layer and a lining layer, the upper garment, the trousers and the cap are respectively provided with a plurality of breathable assemblies, a tying rope penetrates through a trouser opening of the trousers, and the face mask is arranged on the face mask. A plurality of first buckle heads are arranged on the periphery of the inner side wall of a trouser opening of the trousers, a plurality of first buckle seats matched with the first buckle heads are arranged on the periphery of the edge of the bottom of the upper garment, a V-shaped clamping edge is arranged on the periphery of a cap opening of the cap, the mask comprises a mask body, goggles, a respirator and a connecting edge, a plurality of second buckle seats are arranged on the inner side of the inner edge of the V-shaped clamping edge, and the second buckle seats are arranged on the inner side of the V-shaped clamping edge. And a plurality of second buckle heads matched with the second buckle seats are arranged on the inner side of the connecting edge. The breathable and anti-bacterial fabric is light, thin, soft and good in breathable effect, has the anti-bacterial and anti-pollution effects, and is comfortable to wear and good in breathability.

The utility model relates to an external packaging structure applied to an intelligent tire receiver, which comprises an intelligent tire receiver PCB (Printed Circuit Board) and a box body, and is characterized in that the box body comprises a cover plate and a cover plate side wall which is provided with a first accommodating space and surrounds the first accommodating space; the bottom plate is provided with a second accommodating space and a bottom plate side wall surrounding the second accommodating space; the cover plate and the bottom plate can be clamped and fixed to form a sealed accommodating space for packaging the PCB of the intelligent tire receiver; and the interface units are partially exposed on one side of the side wall of the bottom plate, and the other parts of the interface units are exposed at the matching part of the side wall of the cover plate and the side wall of the bottom plate. The PCB of the intelligent tire receiver is isolated from the outside, the packaging is tight, the intelligent tire receiver has the advantages of dust prevention, pollution prevention and small size, and meanwhile, a plurality of interfaces are reserved, so that the intelligent tire receiver is convenient to use and assemble.

The utility model provides an anti-fouling automatic silk reeling machine silk guide drum wheel which comprises a drum wheel core and drum wheel housings coaxially arranged on the two sides of the drum wheel core, and the drum wheel core and the drum wheel housings on the two sides are coaxially connected through axial fixing assemblies. The drum wheel core is provided with a rotary supporting assembly which is coaxial with the drum wheel housings on the two sides, and the drum wheel core is rotatably arranged on the axial fixing assembly through the rotary supporting assembly; the drum wheel cover shell is provided with a connecting part used for axially positioning the rotary supporting assembly, the connecting part is inserted into the drum wheel core and abuts against the side wall of the rotary supporting assembly, and an anti-fouling blocking face is arranged on the outer side of a rolling gap between the connecting part and the drum wheel core. According to the utility model, the rotation flexibility of the drum wheel core is provided, the inaccurate detection is avoided, and the anti-pollution advantage is also realized.