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Advanced mathematics probability demonstration device

A demonstration device and advanced mathematics technology, applied in the field of mathematical probability demonstration devices, can solve the problems of inconvenient demonstration and achieve the effect of high flexibility and high convenience

Inactive Publication Date: 2017-08-18
NANYANG INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current experimental demonstration of the probability distribution of throwing a sieve is inconvenient and urgently needs to be improved

Method used

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Embodiment Construction

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0022] see Figure 1~5 , in the embodiment of the present invention, a kind of advanced mathematical probability demonstration device comprises demonstration box 1, sieve 2, telescopic rod 3, PLC controller 4, base 6, turntable 7 and motor 13, and described demonstration box 1 is provided with sieve 2. The middle part of the rear side of the demonstration box 1 is fixedly provided with a support shaft 10, on which a drum 9 is rotatably set, and the lower side ...

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Abstract

The invention discloses an advanced mathematics probability demonstration device comprising a demonstration box, a sieve, a telescopic rod, a base, a rotating disc and a motor. The sieve is arranged in the demonstration box. A supporting shaft is fixed on the middle part of the rear side of the demonstration box. A rotating cylinder rotatably sleeves the supporting shaft. The telescopic rod is fixedly arranged at the lower side of the rotating cylinder. The motor is fixedly installed on the upper part of the telescopic rod through a motor fixing base. The output shaft of the motor is provided with a second chain wheel. The rear side of the rotating cylinder is provided with a first chain wheel on the supporting shaft. The first chain wheel is connected with the second chain wheel through a transmission chain. The rear end of the supporting shaft is fixedly provided with the rotating disc. The rear side of the rotating disc is provided with a rectangular groove which is internally and rotatably provided with a crank through the rotating shaft. The bottom part of the telescopic rod is provided with the base. Probability demonstration can be conveniently performed, manual and electric demonstration can be performed and the height can be conveniently adjusted so that the flexibility is high.

Description

technical field [0001] The invention relates to an auxiliary teaching aid, in particular to an advanced mathematics probability demonstration device. Background technique [0002] Advanced mathematics refers to the more complicated part of mathematics objects and methods compared with elementary mathematics. Broadly speaking, mathematics other than elementary mathematics is advanced mathematics, and there are also those who refer to the more in-depth algebra, geometry, and simple set theory and logic in middle school as secondary mathematics, and regard them as elementary mathematics in primary and secondary schools and university mathematics. Phase transition to higher mathematics. It is generally believed that advanced mathematics is a basic subject formed by calculus, more in-depth algebra, geometry and the intersecting content between them. [0003] Probability is a concept defined by people according to the law of random events. In college advanced mathematics, in ord...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09B23/02
CPCG09B23/02
Inventor 牛玉俊王国欣曾铄禹刁天博童姗姗
Owner NANYANG INST OF TECH
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