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Device for drawing longitude and latitude lines

A technology of longitude, latitude and latitude, which is applied in the direction of planetarium/globe, instruments, educational appliances, etc., and can solve the problem of drawing tools or devices that do not find the longitude and latitude of the globe

Pending Publication Date: 2021-09-10
杨继兰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Compared with using a globe purchased directly, if students can prepare a globe with their own hands, it will make students more impressed with knowledge and master it more thoroughly. However, there is no device that can easily make a globe at home in the prior art and methods, and in particular no tools or devices for drawing lines of latitude and longitude on a globe have been found

Method used

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  • Device for drawing longitude and latitude lines
  • Device for drawing longitude and latitude lines
  • Device for drawing longitude and latitude lines

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Please refer to Figure 1 to Figure 5 , figure 1 Split structure front view for the present invention; figure 2 Split structure side view for the present invention; image 3 It is the front view of the combined structure of the present invention; Figure 4 It is a side view of the combined structure of the present invention; Figure 5 It is a top view of the combined structure of the present invention.

[0038] A device for drawing warp and latitude, comprising a warp drawing unit for drawing warp and a weft drawing unit for drawing weft.

[0039] When in use, the meridian can be drawn directly on the sphere 12 by the meridian drawing part, and then the latitude can be drawn on the sphere 12 by the latitude drawing part, thereby obtaining a simple globe with longitude and latitude.

[0040]Specifically, the meridian drawing part includes a first seat body, on which a hemispherical supporting structure is arranged, and a longitude scale 4 is arranged at the circula...

Embodiment 2

[0044] Please refer to Figure 1 to Figure 5 , figure 1 Split structure front view for the present invention; figure 2 Split structure side view for the present invention; image 3 It is the front view of the combined structure of the present invention; Figure 4 It is a side view of the combined structure of the present invention; Figure 5 It is a top view of the combined structure of the present invention.

[0045] This embodiment proposes a device for drawing warp and latitude lines. Compared with the device in Embodiment 1, the main difference is that: the second seat body in this embodiment is provided with a vertical shaft rod 11, and the shaft rod 11 is connected with the latitude line. The connecting line of 90°N and 90°S drawn in hole 8 coincides.

[0046] In this embodiment, a vertical shaft rod 11 is set at the center of the parallel drawing hole 8. When drawing the parallel, the shaft rod 11 passes through the south pole and the north pole of the sphere 12, ...

Embodiment 3

[0049] Please refer to Figure 1 to Figure 5 , figure 1 Split structure front view for the present invention; figure 2 Split structure side view for the present invention; image 3 It is the front view of the combined structure of the present invention; Figure 4 It is a side view of the combined structure of the present invention; Figure 5 It is a top view of the combined structure of the present invention.

[0050] This embodiment proposes a device for drawing latitude and longitude lines. Compared with the device in Embodiment 2, the main difference is that: the above-mentioned second base body in this embodiment is provided with a card slot 10 that is engaged with the shaft rod 11 , the card slot 10 is located at the upper end and / or lower end of the weft thread drawing hole 8 .

[0051] In this embodiment, the number of draw-in slots 10 is two, which are located at the upper and lower ends of the weft-drawing holes 8 respectively, and coincide with the connecting l...

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Abstract

The invention provides a device for drawing longitude and latitude lines, and relates to the technical field of globes. The device for drawing longitude and latitude lines comprises a first seat body and a second seat body, a hemispherical bearing structure is arranged on the first seat body, and longitude scales are arranged at a circular opening of the bearing structure; a latitude drawing hole is formed in the second seat body, and latitude scales are arranged at an opening of the latitude drawing hole. The device comprises two main structures, namely the first seat body and the second seat body, and the first seat body and the second seat body are respectively provided with a longitude drawing hole, the latitude drawing hole, a first slot, a second slot, scales and the like, so that the longitude and the latitude on the globe can be easily drawn. The device is simple in structure, convenient to use and operate and very easy to manufacture.

Description

technical field [0001] The invention relates to the technical field of globes, in particular to a device for drawing lines of latitude and longitude. Background technique [0002] The globe is the model of the earth. The globe is to facilitate the understanding of the earth. People imitate the shape of the earth and shrink it according to a certain ratio to make a model of the earth. It is overall and approximately correct to observe the mutual relationship of various scenes. At present, the globe has been widely used in teaching and many fields. Especially in the subject of geography, globes are necessary equipment for geography teaching to popularize geographic knowledge and for home and office use. With the needs of social development and the development of teaching, the scope of use of globes has entered thousands of households from classrooms. In the past, teachers were teaching When dividing the longitude and latitude of the earth, the method of drawing pictures is ge...

Claims

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Application Information

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IPC IPC(8): G09B27/08
CPCG09B27/08
Inventor 杨继兰
Owner 杨继兰
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