Observation sighting device for easy storage of magnetic compass azimuth circle.

With the development of science and technology, the application of many advanced navigation equipment in navigation, navigation technology has gradually moved from traditional experience navigation to digital navigation. However, ocean-going transport ships sail on the boundless sea. No matter how advanced the navigation equipment is and how the digitalization process of navigation technology develops, classic navigation technology is still one of the skills that ocean-going ship drivers must master. Among them, the target positioning is a basic skill. The target positioning is to place the azimuth circle on the azimuth sub-compass of the magnetic compass or gyro compass. The observer uses the visual sighting frame and the object standard sighting frame on the azimuth circle. Visually observe the bearing of the objects (some markedly fixed on land, marked on the chart) (the bearing circle is placed on the magnetic compass, which is the magnetic bearing, and the bearing circle is placed on the gyro compass bearing subcompass, which is the true bearing), Thus, a ship position line is obtained on the chart, and then another bearing line is measured or the distance between the object and the ship is directly measured by the radar, and the position of the ship can be determined. However, due to the long length of the observation sighting device on the current magnetic compass azimuth ring, the storage can only be simply turned inward and folded, but the safety of the inner side and the upper end is still very low, and it is inconvenient to carry and store.

    Therefore, in order to solve the above problems, the manufacturer provides an observation and sighting device for easy storage of the magnetic compass azimuth circle.

    The new easy-to-storage magnetic compass azimuth circle observation sight device is composed of an upper frame and a lower frame connected by a hinge mechanism, and four convenient upper and lower frames are fixed on the upper and lower ends of the upper frame and the lower frame to form the observation sight. The compass and the flip-folded magnetic block greatly facilitate the storage and carrying of the entire magnetic compass azimuth circle, and improve the safety of the observation and sighting device.