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Mathematical probability demonstration device

A demonstration device and probability technology, applied in the field of mathematical probability demonstration device, can solve problems such as multi-time, occupation of statisticians, time-consuming and labor-intensive, etc.

Inactive Publication Date: 2021-08-03
XUCHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In this way, it takes a lot of time for statisticians, and it is time-consuming and labor-intensive. Therefore, we propose a mathematical probability demonstration device to solve the above problems

Method used

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Embodiment

[0025] see Figure 1-5 , in the illustration: this embodiment is a preferred implementation of this technical solution, a mathematical probability demonstration device, including a base plate 1, and two symmetrically arranged connecting plates 2 are fixedly installed on the top of the base plate 1, and the two connecting plates The same baffle plate 3 is fixedly installed on the side of the plates 2 close to each other, the bottom of the bottom plate 1 is provided with a rotary groove 28, and the rotating column 4 is installed in the rotary groove 28, and the top of the connecting plate 2 is provided with a circular groove. A limiting groove 17 is provided on the inside of one side, and the top inner wall and the bottom inner wall of the limiting groove 17 are fixedly installed with the same fixed column 18, and the lifting plate 21 is slidably installed on the fixed column 18, and the bottom of the lifting plate 21 is fixed. One end of a spring 22, the other end of the first ...

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Abstract

The invention relates to the technical field of demonstration devices, in particular to a mathematical probability demonstration device which comprises a bottom plate, two symmetrically-arranged connecting plates are fixedly installed at the top of the bottom plate, the same baffle is fixedly installed on the sides, close to each other, of the two connecting plates, a rotating groove is formed in the bottom of the bottom plate, and a rotating column is rotationally installed in the rotating groove; a circular groove is formed in the top of each connecting plate, a limiting groove is formed in one side of the circular groove, a same fixing column is fixedly installed on the inner wall of the top and the inner wall of the bottom of the limiting groove, a lifting plate is slidably installed on the fixing column, one end of a first spring is fixedly installed at the bottom of the lifting plate, the other end of the first spring is fixedly installed on the inner wall of the bottom of the limiting groove, one side of the lifting plate extends into the circular groove and is fixedly provided with a sliding plate, a connecting groove is formed in the inner wall of the bottom of the circular groove, a fixing rod is fixedly installed on the inner wall of the bottom of the connecting groove, and the sliding plate is installed on the fixing rod in a sliding mode.

Description

technical field [0001] The invention relates to the technical field of demonstration devices, in particular to a mathematical probability demonstration device. Background technique [0002] In advanced mathematics, probability is a difficult knowledge point to understand. When tossing a coin, to count the probability that the coin is either heads up or tails up is equal, the statistician needs to hold the coin and throw it into the air, then wait for the coin to fall on the ground, and repeat the above action several times. In this way, it takes a lot of time for the statistician, and it is time-consuming and labor-intensive. Therefore, we propose a mathematical probability demonstration device to solve the above problems. Contents of the invention [0003] The purpose of the present invention is to provide a mathematical probability demonstration device to solve the problems raised in the background art above. [0004] In order to achieve the above object, the present i...

Claims

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Application Information

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IPC IPC(8): G09B23/02
CPCG09B23/02
Inventor 郭延涛
Owner XUCHANG UNIV
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