3results about How to "Good aerodynamic shape" patented technology

The novel wingtip combined navigation lamp for the unmanned aerial vehicle comprises navigation lamp bodies, the navigation lamp bodies are arranged on a left wing and a right wing of the unmanned aerial vehicle correspondingly, each navigation lamp body comprises a lampshade, pressing plates, a shell, a printed board assembly, a cover plate, an electric connector and a light source assembly, the lampshade covers the shell, the pressing plates are arranged above the two ends of the lampshade, and the pressing plates are arranged above the two ends of the lampshade. The lampshade is fixed to the shell through the pressing force of the pressing plate in the vertical direction, the prism structure and the bead face structure are arranged on the surface of the lampshade, and the lampshade, the prism and the bead face are integrally machined, so that integrated design of the lampshade, the prism and the bead face is achieved, compared with the prior art, spatial light distribution better meets the corresponding index requirement, and the light quality is improved. The device has the advantages of being small in size, light in weight, compact in structure and beneficial to small-size integration of products, and technical support is provided for precise light distribution of the combined navigation lamp of the unmanned aerial vehicle.

The utility model relates to a kind of gliding guidance aircrafts suitable for multiple air drop platform, including hanger and glider, the upper end of hanger is equipped with upper connector, the lower end of hanger is equipped with lower connector and restraint, the upper end of glider is equipped with multiple lifting lugs, restraint is symmetrically arranged in the both sides of hanger, the both sides of glider are symmetrically articulated with spring wing, lifting lug is equipped on spring wing, drive mechanism is equipped in hanger, the output end of drive mechanism is connected with bolt and restraint, bolt is used to connect or separate lower connector and lifting lug, restraint is used to connect or release lifting lug. By connecting glider with hanger, the design constraint of carrier storebracket scheme to glider is simplified or even eliminated. In order to adapt to different carrier storebracket, only need to adjust the connection relationship of hanger and carrier storebracket, and glider is not affected, greatly reduce the difficulty of system modification design, use adjustment, significantly shorten modification design cycle, increase the application range of gliding guidance aircraft.

This invention discloses a windbreak wall, comprising a windbreak panel and an angle adjustment device. The windbreak panel is arranged on one or both sides of a railway bridge, with its leeward side facing the train. The angle adjustment device includes two columns respectively arranged on the left and right sides of the windbreak panel. The lower part of the windbreak panel is rotatably connected to the lower part of the columns, and a motor is installed on the upper part of the columns. The output shaft of the motor faces the windbreak panel and is connected to a gear. Mounting plates are connected to the left and right sides of the upper part of the windbreak panel, perpendicular to the windbreak panel. An arc-shaped rack is fixed to the mounting plate, and the gear meshes with the arc-shaped rack to drive the windbreak panel to adjust its angle. The windbreak wall provided by this invention can adjust its angle according to the actual wind and sand environment, thereby reducing the overturning moment of strong winds on the train, ensuring the safe operation of the train in strong wind and sand environments, and ensuring the safety of passengers.