Measuring device for ship draught

Abstract

The invention relates to a measuring device for ship draught, comprising a cuboid container, wherein the bottom of the cuboid container is provided with a hole for a sleeve to enter; one side of the top of the cuboid container is provided with a top plate; a grate is set above the top plate to hold a laser ranging device; a magnet is set above the edge of the top plate; a hanging ring is respectively set on the middle parts of the two corresponding sides on the top of the cuboid container and is for connecting a long rope; a steel wire rope is set below the laser spacing device, wherein the middle part of the steel wire rope is sleeved with a floater; the upper surface of the floater is coated with a reflection plate; the other end of the steel wire rope is connected with a counterweight block. The invention eliminates influence on measuring caused by waves, and avoids inconvenience to ensure ship draught caused by weather conditions like fogging. The invention has a simple structure, lower production cost, and easy operation. The invention largely raises measuring precision on ship draught.

Description

technical field [0001] The invention relates to the technical field of ship wharf draft measurement, in particular to a device for ship draft measurement. Background technique [0002] Now the ships built by various shipyards are developing towards large-scale, with the tonnage ranging from tens of thousands of tons to hundreds of thousands of tons or even 300,000 to 400,000 tons. A difference of several centimeters in the draft will have an impact on the load capacity of the ship by hundreds of tons, so accurate ship draft measurement is a concern of shipyards and shipowners. [0003] The staff confirmed the draft at the pier. When the weather is foggy, it is difficult to read accurate data with the naked eye from a distance. When the pier is windy and waves are strong, the ups and downs of the waves also make it difficult for the staff to confirm which scale the calm water surface should accurately correspond to. , so there is a certain error in visual inspection. At pre...

AI Technical Summary

Problems solved by technology

However, because it is a glass product, it is easy to be damaged when it comes into contact with the steel hull, and the contact positioning with the hull requires the cooperation of many staff. It is difficult for the staff to take samples in the water, and there is a certain degree of insecurity.

This measurement method requires a lot of manpower, is not easy to operate, and also has potential safety hazards

At present, ultrasonic waves are also used to measure the draft distance of ships, but the distance measurement accuracy is relatively low, and it cannot be used in windy places

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