Dial for sextant

A sextant, disc body technology, applied in sextant and other directions, can solve the problems of heavy weight, affect accuracy, bumps and other problems, and achieve the effect of improving service life, improving stability and reducing weight

Inactive Publication Date: 2014-01-01
CHANGZHOU HAOMAI MARINE EQUIP TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The dial structure of the existing sextant is unreasonable, resulting in heavy weight. When holding the sextant for a long time, you will feel tired because of its weight
At t...

Method used

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  • Dial for sextant

Examples

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Embodiment Construction

[0012] See figure 1 As shown, a dial for a sextant has a disc body 1, and the disc body 1 is an integrally formed fan-shaped structure, and the disc surface of the disc body 1 has six adjacent special-shaped holes 4. The outer edge of the disc body 1 is provided with a scale display plate 2, the front of the scale display plate 2 is provided with a scale reading value, and the end at the outer edge of the scale display plate 2 is provided with a bar-shaped groove 3. Its working principle is: the six special-shaped holes 4 distributed on the surface of the disc body 1 not only reduce the weight of the sextant, but also can be taken and placed by grasping the holes, which improves the stability. Engraving the scale reading value on the scale display panel 2 is not only beneficial to the clarity, but also improves the service life of the scale reading value.

[0013] The specific embodiments described above have further described the purpose, technical solutions and beneficial ...

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PUM

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Abstract

The present invention discloses navigation mapper equipment, and particularly relates to a dial for a sextant. The dial comprises a disc body, wherein the disc body is an integrally forming sector structure, the disc surface of the disc body is provided with six adjacent special-shaped holes, and the outer edge of the disc body is provided with a scale display disc. According to the present invention, according to the mechanical principle, the six adjacent special-shaped holes are utilized so as to essentially reduce a weight of the sextant dial, improve stability, easily achieve taking or placing, and ensure product quality; and scale readings are arranged on the scale display disc, such that a service life of the scale readings is increased, and the problem that the scale readings can be aged or unclear due to often friction can not be generated.

Description

technical field [0001] The invention relates to a nautical surveying and mapping device, in particular to a dial for a sextant. Background technique [0002] In the field of navigation, a sextant is an optical instrument commonly used to measure the angle between two distant targets. It is usually used to measure the angle between the sun or other celestial bodies and the sea level or horizon at a certain moment, so as to quickly know the latitude and longitude of the position of the ship or aircraft. The structure of the dial of the existing sextant is unreasonable, resulting in heavy weight. After holding the sextant for a long time, you will feel tired because of its weight. At the same time, it is inconvenient to take such a sextant, and it is easy to cause bumps. The scale on the surface of the sextant is often rubbed, which affects its accuracy. Contents of the invention [0003] The object of the present invention is to solve the above-mentioned existing problems...

Claims

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Application Information

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IPC IPC(8): G01C1/08
CPCG01C1/08
Inventor 朱亮狄丹岩
Owner CHANGZHOU HAOMAI MARINE EQUIP TECH
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