Searchlight for ship

Abstract

The invention provides a safe-zooming-mode searchlight for a ship. The searchlight comprises a searchlight cylinder, wherein a reflective bowl, a motor and a movable bracket are arranged in the searchlight cylinder; the movable bracket comprises a ball screw and an L-shaped connecting piece; one end of the L-shaped connecting piece is fixed at the bowl bottom of the reflective bowl; the other end of the L-shaped connecting piece is in threaded connection with the ball screw; the motor is arranged at the bottom of the searchlight cylinder; and the ball screw is coaxially connected with the output shaft of the motor. The searchlight for the ship has the beneficial effects that the relative movement of the L-shaped connecting piece and the ball screw is controlled so as to change the relative position of the reflective bowl by virtue of startup and shutdown operation of the motor, and safe zooming is realized; and due to a sliding rail and a slide block, an effect of limiting the reflective bowl can be achieved, and the reflective bowl can move along the sliding rail.

Description

technical field [0001] The invention belongs to the field of lamps, in particular to a marine searchlight. Background technique [0002] Xenon lamp is also called HID gas discharge headlamp. It replaces the traditional tungsten wire with high-pressure xenon wrapped in a quartz tube, and uses high-voltage current to activate the xenon to form a beam of arc light, which can continuously discharge and emit light between two electrodes. The white super-strong arc light produced by xenon can increase the color temperature of the light and emit sunlight similar to daytime. This light has a significant effect on improving the clarity of sight at night and in fog. In addition, the xenon lamp has no filament, so there is no problem of being scrapped due to broken filament, and the service life is much longer. Xenon lamps are being gradually applied to the field of searchlights due to their higher color temperature, more concentrated illumination and longer service life. [0003] Th...

AI Technical Summary

Problems solved by technology

In order to improve the IP level, the existing marine searchlights are often fully sealed with lamp tubes. This kind of searchlight has poor heat dissipation performance, while high-power xenon lamps produce a lot of heat, which limits the use of high-power xenon lamps.

[0004] In order to realize the free switching between long-distance spotlight irradiation and short-distance astigmatism irradiation, the existing searchlights often zoom by changing the position of the bulb in the lamp tube, but because the xenon lamp will generate tens of thousands of volts of high-voltage electricity when the lamp is just lit , and the xenon bulb is connected to the power supply, using this zoom method will bring great safety hazards to the user

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