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Multifunctional plane type sundial

A planar, multi-functional technology, applied to mechanically driven clocks, instruments, etc., can solve the problem of lack of teaching aids for demonstrating sundial functions, and achieve the effects of simple structure, convenient operation, and good practicability

Inactive Publication Date: 2008-06-11
XIANGMING MIDDLE SCHOOL SHANGHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem of lack of teaching aids for demonstrating the function of the sundial, and to design a multifunctional planar sundial

Method used

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  • Multifunctional plane type sundial
  • Multifunctional plane type sundial
  • Multifunctional plane type sundial

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Experimental program
Comparison scheme
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Embodiment Construction

[0022] As shown in the figure, the present invention provides a multifunctional planar sundial, which is composed of a sundial pin 1, a panel 2, a base plate 3, an angle fixer 4 and a hinge 5, and the hinge 5 is used to connect the panel 2 and the base plate 3 Each end, and the panel 2 and the base plate 3 near the hinge 5 are installed with a fixed angle 4, and the sundial 1 is installed at the center of the panel 2.

[0023] The teaching aid of the present invention can demonstrate various forms of sundials, and only need to adjust the teaching aid according to the needs. Various demonstration situations are now explained:

[0024] 1. Horizontal sundial:

[0025] Put the panel 2 and the bottom plate 3 together and place them horizontally, such as figure 2 shown.

[0026] 2. Equatorial sundial:

[0027] Separate the panel 2 from the bottom plate 3, adjust the angle fixer 4 to adjust the α angle to be consistent with the latitude angle of the location, and make the sundial ...

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Abstract

The invention belongs to the field of a time measuring tool, in particular to multifunctional plane type sundial, which comprises a dial pin (1), a panel (2), a soleplate (3), an angle fixer (4) and a gemel (5). The utility model has simple structure and convenient operation; through the simple device, various functions of sundial can not only be simulated, but also the difficulty of lacking teaching aids of the kind is solved and good practicality is realized.

Description

technical field [0001] The invention belongs to the field of time-measuring tools, and in particular relates to a multifunctional planar sundial. Background technique [0002] The sundial is an ancient timing tool that uses the angle change of the sun's shadow to measure time. It measures the time of day according to the angle change of the sun's shadow on the sundial. Today, it can be used to let young people learn astronomical knowledge and cultivate Three-dimensional space imagination ability and scientific experiment ability. Although there are many types of sundials, there is one type that uses the changes in the sun’s shadow of the sundial needle on the plane sundial surface to measure time, including equatorial, horizontal, meridional, mortal, oblique, and vertical. However, due to the lack of such teaching aids, there will be many difficulties in teaching, and it is impossible to demonstrate it intuitively to students. If we can design a time measurement method that...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G04B49/02
Inventor 王嘉琪王嘉瑶李捷于力黄曾新
Owner XIANGMING MIDDLE SCHOOL SHANGHAI