4results about How to "Good light blocking effect" patented technology

The invention discloses a method for producing degradable mulching film paper by utilizing bamboo fibers and coffee grounds, and solves the technical problem that the raw material source of the degradable mulching film paper is relatively limited. The method comprises the steps of cooking, washing, pulping, burdening, forming on a net, squeezing, sizing, drying, reeling, rewinding and packaging, the raw materials adopt 90% by mass of bamboo fibers and 10% by mass of coffee grounds, the raw materials are pulped at a high concentration of 10%-15% and then ground into pulp through a thick disc mill, then the pulp is formed on the net, the concentration of the net is set to be 0.35%-0.5%, and the pH value of the net is set to be 6.5-7.5. The bamboo fibers and the coffee grounds are used as the raw materials, so that the raw material sources of the mulching film paper are enriched, and the performance of the mulching film paper is improved to a certain extent.

The application discloses a construction method of a road and bridge safety guardrail, and comprises the following steps: (a) marking a construction area; (b) installing a first cross beam between two stand columns to obtain a stand column combination; (c) installing a buffer cylinder between two stand column combinations; (d) butting a second cross beam with a connecting seat, and then installing the connecting seat on the first cross beam; (e) butting the second cross beam with two adjacent connecting seats; (f) fixing the stand column in place; (g) installing on the second cross beam; (h) locking a first anti-glare plate; and (i) installing a limiting rod between two adjacent anti-glare plates. The application has the advantages of simple construction, small quantity of bolts, low operation difficulty, low labor intensity, high construction efficiency, step-by-step order, guaranteed assembly quality of the guardrail, reliable and effective light blocking wall formed by the anti-glare plates, difficult penetration of light of an opposite vehicle, good light blocking effect, and solved problem of opposite vehicle light glare.

The utility model discloses a novel car lamp structure which comprises a shell and a double-color thick-wall lampshade arranged at one end of the shell, and a light source module and a reflecting piece are arranged in the shell. The double-color thick-wall lampshade comprises a transparent piece part on the outer side and a black piece part on the inner side, the middle of the side, close to the black piece part, of the transparent piece part is provided with a light inlet face, the light inlet face is located in the light emitting direction of the reflecting piece, and an identification piece is embedded in the middle of the transparent piece part. The marking piece is embedded in the thick-wall lampshade, the light blocking effect of the lamp can be guaranteed on the premise that the internal space of the automobile lamp is not affected, and the identification degree and the attractiveness of the automobile lamp are improved.

The utility model discloses an LC adapter and an optical transmission device, the LC adapter comprises a housing and a dustproof cover, one end of the housing is provided with a first accommodating groove, two opposite side walls of the first accommodating groove are provided with lap joint projections, and one surface of the lap joint projections facing the groove bottom of the first accommodating groove is set as a lap joint surface; one end of the dustproof cover is rotationally mounted on the groove wall of the first containing groove, the outer side face of the dustproof cover abuts against the lap joint face, and the peripheral side face of the dustproof cover is in clearance fit with the groove wall of the first containing groove; an assembling protrusion is formed on the portion, close to the rotating axis of the dustproof cover, of the lap joint face, an assembling concave part is arranged on the edge of the dustproof cover corresponding to the assembling protrusion, and the assembling protrusion is matched with the assembling concave part. In this way, the outer side face of the dustproof cover is attached to the lap joint protrusion, the peripheral side face of the dustproof cover is attached to the groove wall of the first containing groove, external interference light and dust are difficult to enter the groove from a bending gap between the dustproof cover and the groove wall of the first containing groove, and the dustproof effect and the light blocking effect are better.