Automatic positioning folding compass
An automatic positioning and compass technology, applied in the directions of compass, instrument, surveying and navigation, etc., can solve the problems of time waste and difficulty for beginners, and achieve the effect of convenient use, simplified steps and simple structure
Active Publication Date: 2020-05-19
王明奎
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Problems solved by technology
When measuring the next target, it is still necessary to repeat the same steps above. First align the target and then adjust the magnetic needle and the seabed line to read the data, instead of directly reading the data after aligning the target. This method is suitable for different targets. The measurement steps that need to readjust the coincidence of the magnetic needle and the bottom line not only bring a certain degree of difficulty to beginners, but also cause a waste of time for frequent users
Method used
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[0014] Such as figure 1 and figure 2 As shown, the automatic positioning folding compass in this embodiment includes a Tianchi 1, an inner disk 2 and an outer disk 3. The Tianchi 1 includes a thimble, a magnetic needle, a submarine line, a cylindrical outer box 4 and a glass cover, and the inner disk 2 and the cylindrical outer disk on the Tianchi 1. The upper end of the box 4 is fixed, the outer disk 3 is circular, and the crystal lines passing through the periphery of the outer disk 3 and the center hole of the outer disk 3 form a cross to form the Tianxin ten roads, that is, the positioning line 5, and the middle part of the outer disk 3 is provided with a groove 6 for installing Tianchi. The folding compass comprises a shell made of a hinged base 13 and a loam cake 14, the outer end of the loam cake 14 is provided with a sight 15, the middle part of the loam cake 14 is provided with a blister level 16, and the outer end of the pedestal 13 is provided with a A sight 17, a...
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The invention discloses an automatic-positioning folded compass and relates to the field of compass devices. The automatic-positioning folded compass is used for solving the problem of the existing folded compasses that time is wasted due to the fact that a magnetic needle and an ocean floor line are required to be readjusted during the measurement of each subject matter. A plastic bearing is arranged between a groove of an outer disc of the automatic-positioning folded compass and a cylindrical outer box of a heavenly pond, an outer ring of the plastic bearing is embedded into a groove of the heavenly pond, an inner ring of the plastic bearing is fixed with the cylindrical outer box of the heavenly pond in a bonding manner, and an inner disc is fixed with the upper end of the inner ring of the plastic bearing in a bonding manner; a circular hole I is formed in the middle part of the outer disc; a circular hole II is formed in the middle part of a base, and the base is fixedly connected with the outer disc. By using the automatic-positioning folded compass, the structure is simple, the use is convenient, and time is saved.
Description
technical field [0001] The invention relates to a compass device, in particular to an automatic positioning folding compass. Background technique [0002] Compass, also known as compass, is widely used in military, navigation, forestry, exploration, construction and other fields. The compass consists of three parts: the Tianchi, the inner disk and the outer disk. The Tianchi is composed of a thimble, a magnetic needle, a submarine line, a cylindrical outer box and a glass cover; the inner disk is the azimuth disk, and the azimuth disk is fixed with the cylindrical outer box on the Tianchi. The contents are engraved on different rings of the azimuth dial; the outer disk is usually circular, and the crystal lines passing through the periphery of the outer disk and forming a cross in the center hole of the outer disk form the Tianxin Ten Dao, or positioning lines, which are used to read the contents on the inner disk. The outer shell of the folding compass is generally connect...
Claims
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IPC IPC(8): G01C17/02G01C17/18
CPCG01C17/02G01C17/18
Inventor 王明奎
Owner 王明奎