4results about How to "Avoid panning" patented technology

The present application relates to the field of ecological revetment in the field of hydraulic engineering, and particularly relates to a riprapping ecological revetment system suitable for water level drawdown. The system comprises an ecological soil base layer, a filter layer, a riprapping revetment, a simulated wood pile scour protection belt and a planting groove; the ecological soil base layer has a compaction degree of greater than or equal to 93%, providing a dense support; the filter layer ensures smooth seepage and prevents soil loss; the riprapping revetment is formed by stacking large-diameter block stones according to gradation, forming a rigid skeleton resistant to scour; the planting groove is fixed in the riprapping structure, providing space for vegetation and anchoring the surface riprapping. The present application forms a closed-loop protection system through the cooperation of the five, effectively solving the problems of traditional riprapping revetment, such as easy scouring and instability during water level drawdown, and high maintenance cost, and has the advantages of scour resistance, ecology and universality, and is suitable for water level rapid rise and fall scenes such as regulating and storing lakes, reservoir drawdown zones, tidal river shorelines and the like.

The application belongs to the technical field of wood processing tools and discloses a wood multidirectional cutting guide plate with a positioning scale, which comprises a guide plate main body, a mounting groove is formed in the side surface of the guide plate main body, and a ruler is inserted and mounted in the mounting groove. The positioning protrusion of the positioning column cooperates with the positioning gap in the convex column positioning groove, can be directly clamped into the gap corresponding to the preset angle, and mechanical positioning is realized. This structure does not need manual repeated measurement, controls the angle error in the mechanical tolerance range, can quickly switch various cutting angles, solves the problem of the traditional mode of "depending on experience and large error", cooperates with the length positioning of the ruler, can complete straight line cutting, can realize 45° bevel cutting, arbitrary angle mortise and tenon cutting and the like, covers the diversified needs of furniture manufacturing, decoration and the like scenes, breaks through the limitation of the traditional guide plate "single function", meanwhile, the plug-in connection of the positioning column and the positioning groove limits rotation, the magnet adsorption cutting platform prevents translation.

The utility model belongs to the field of quality inspection equipment, specifically is a kind of quality inspection equipment for optical lens processing, including base;The upper end of the base is connected with air float clamp, the outside of air float clamp is connected with adjusting assembly, the upper end of the base is connected with quality inspection assembly;The air float clamp includes disc, the disc is fixedly connected at the upper end of base, the outside of disc is fixedly connected with ring one;By setting air float clamp, when carrying out quality inspection to optical lens, open air pump, air pump will compressed air pass through gas pipe, main pipe, communicating pipe, finally respectively input each annular pipeline, finally from jet pipe spouts, the airflow formed air film can be placed on its optical lens suspended support, to optical lens play the role of supporting positioning, it is convenient to carry out quality inspection to optical lens, and will not directly form contact with optical lens, prevent because mechanical clamping easily scratch mirror surface coating.