CN216979966U - A light-strip normal distribution model - Google Patents
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- CN216979966U CN216979966U CN202220126088.1U CN202220126088U CN216979966U CN 216979966 U CN216979966 U CN 216979966U CN 202220126088 U CN202220126088 U CN 202220126088U CN 216979966 U CN216979966 U CN 216979966U
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- 238000009826 distribution Methods 0.000 title claims abstract description 28
- 239000011324 bead Substances 0.000 claims abstract description 22
- 238000009434 installation Methods 0.000 claims abstract description 11
- 238000001179 sorption measurement Methods 0.000 claims description 5
- 238000013016 damping Methods 0.000 claims description 4
- 239000003086 colorant Substances 0.000 claims description 3
- 239000000696 magnetic material Substances 0.000 claims description 3
- 238000005315 distribution function Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 2
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
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Abstract
Description
技术领域technical field
本实用新型涉及教学模型技术领域,尤其涉及一种灯带式正态分布模型。The utility model relates to the technical field of teaching models, in particular to a lamp strip type normal distribution model.
背景技术Background technique
正态分布,也称“常态分布”,又名高斯分布,最早由棣莫弗在求二项分布的渐近公式中得到,C.F.高斯在研究测量误差时从另一个角度导出了它,P.S.拉普拉斯和高斯研究了它的性质,是一个在数学、物理及工程等领域都非常重要的概率分布,在统计学的许多方面有着重大的影响力。Normal distribution, also known as "normal distribution", also known as Gaussian distribution, was first obtained by De Moivre in the asymptotic formula for binomial distribution, C.F. Gauss derived it from another angle when studying measurement error, P.S. Plath and Gauss studied its properties. It is a probability distribution that is very important in mathematics, physics, and engineering, and has a significant impact on many aspects of statistics.
概率论与数理统计教学实践过程中,在教师给学生讲授连续型随机变量的分布的章节时,正态分布无疑是三种分布里面最重要的一种分布,也是日常生活中最常见的一种分布,但是由于正态分布的分布函数和概率密度函数比较复杂,为了加强对概率密度函数的理解,我们制作了一种可发光的磁性正态分布灯带。In the process of teaching probability theory and mathematical statistics, when teachers teach students about the distribution of continuous random variables, the normal distribution is undoubtedly the most important distribution among the three distributions, and it is also the most common one in daily life. However, due to the complex distribution function and probability density function of normal distribution, in order to strengthen the understanding of probability density function, we have made a luminous magnetic normal distribution light strip.
实用新型内容Utility model content
本实用新型的目的是为了解决现有技术中学生对于正态分布函数和概率密度函数的理解较为废力的问题,而提出的一种灯带式正态分布模型。The purpose of the utility model is to solve the problem that the understanding of the normal distribution function and the probability density function is relatively wasteful for middle school students in the prior art, and a lamp strip type normal distribution model is proposed.
为了实现上述目的,本实用新型采用了如下技术方案:In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions:
一种灯带式正态分布模型,包括展示板、X轴板、Y轴板、多个灯珠和多个安装块,所述展示板的前侧开设有两个交错设置的凹槽,所述X轴板和Y轴板的表面分别开设有卡槽,所述X轴板和Y轴板之间通过两个卡槽卡接设置,所述X轴板和Y轴板分别固定设置于对应的凹槽的内部,每个所述灯珠分别与对应的安装块固定连接,每个所述安装块均放置于展示板的表面,相邻的两个灯珠之间分别通过第一导线电性连接,所述展示板的前侧固定设置有供电机构,所述展示板的后侧固定设置有支撑机构。A light strip-type normal distribution model includes a display board, an X-axis board, a Y-axis board, a plurality of lamp beads and a plurality of mounting blocks, and two staggered grooves are provided on the front side of the display board, so the The surfaces of the X-axis plate and the Y-axis plate are respectively provided with clamping grooves, the X-axis plate and the Y-axis plate are clamped by two clamping grooves, and the X-axis plate and the Y-axis plate are respectively fixed and arranged in the corresponding position. Inside the groove, each of the lamp beads is fixedly connected to the corresponding mounting block, each of the mounting blocks is placed on the surface of the display board, and the two adjacent lamp beads are electrically connected through first wires respectively. The front side of the display board is fixedly provided with a power supply mechanism, and the rear side of the display board is fixedly provided with a support mechanism.
优选的,所述供电机构包括矩形框和可充电蓄电池,所述矩形框固定设置于展示板的前侧拐角处,所述可充电蓄电池固定设置于矩形框的内部,所述可充电蓄电池通过第二导线与其中一个灯珠电性连接。Preferably, the power supply mechanism includes a rectangular frame and a rechargeable battery, the rectangular frame is fixedly arranged at the front corner of the display board, the rechargeable battery is fixedly arranged inside the rectangular frame, and the rechargeable battery passes through the first The two wires are electrically connected to one of the lamp beads.
优选的,所述支撑机构包括转杆和两个安装板,两个所述安装板对称固定设置于展示板的后侧,所述转杆设置于两个安装板之间且两端杆壁分别通过阻尼套与对应的安装板转动连接,所述转杆的杆壁通过两个连接杆固定连接有支撑杆。Preferably, the support mechanism includes a rotating rod and two mounting plates, the two mounting plates are symmetrically fixed on the rear side of the display board, the rotating rod is disposed between the two mounting plates, and the rod walls at both ends are respectively The damping sleeve is rotatably connected with the corresponding mounting plate, and the rod wall of the rotating rod is fixedly connected with a support rod through two connecting rods.
优选的,所述展示板采用磁性材料制造而成,每个所述安装块均采用磁铁,每个所述安装块均与展示板吸附连接。Preferably, the display board is made of magnetic material, each of the mounting blocks is a magnet, and each of the mounting blocks is connected to the display board by adsorption.
优选的,所述支撑杆的杆壁对称固定套接有两个防滑套。Preferably, the rod wall of the support rod is symmetrically and fixedly sleeved with two anti-skid sleeves.
优选的,每个所述第一导线与第二导线的颜色均不同。Preferably, the colors of each of the first wires and the second wires are different.
与现有技术相比,本实用新型提供了一种灯带式正态分布模型,具备以下有益效果:Compared with the prior art, the utility model provides a light strip type normal distribution model, which has the following beneficial effects:
1、该灯带式正态分布模型,通过设置的安装块与展示板之间的吸附连接,能够实现对每个安装块的位置固定,即对每个灯珠的位置固定,从而尽量避免在通过模型讲解正态分布函数时灯珠的位置发生移动。1. The light strip-type normal distribution model can fix the position of each installation block through the adsorption connection between the installed installation block and the display board, that is, the position of each lamp bead is fixed, so as to avoid When the normal distribution function is explained through the model, the position of the lamp bead moves.
2、该灯带式正态分布模型,通过设置的支撑机构,能够在课堂上课时通过支撑机构对展示板进行支撑,从而能够便于不同位置的学生观看。2. The light strip-type normal distribution model can support the display board through the support mechanism during class, so that it can be easily viewed by students in different positions.
3、该灯带式正态分布模型,通过设置的多个安装块和多个第一导线,能够利用每个第一导线形成的函数曲线反映偏度。3. In the light strip-type normal distribution model, the skewness can be reflected by the function curve formed by each of the first wires by setting a plurality of installation blocks and a plurality of first wires.
该装置中未涉及部分均与现有技术相同或可采用现有技术加以实现,本实用新型通过模型演示,能够有效帮助学生理解正态分布函数。The parts not involved in the device are the same as the existing technology or can be realized by using the existing technology. The utility model can effectively help students understand the normal distribution function through model demonstration.
附图说明Description of drawings
图1为本实用新型提出的一种灯带式正态分布模型的结构示意图;Fig. 1 is the structural representation of a kind of lamp strip type normal distribution model proposed by the utility model;
图2为图1中展示板的后视图;Fig. 2 is the rear view of the display board in Fig. 1;
图3为图1中局部A部分的结构放大图。FIG. 3 is an enlarged view of the structure of part A in FIG. 1 .
图中:1展示板、2X轴板、3Y轴板、4多个灯珠、5安装块、 6第一导线、7矩形框、8可充电蓄电池、9第二导线、10转杆、11 安装板、12阻尼套、13连接杆、14支撑杆、15防滑套。In the picture: 1 display board, 2X axis board, 3Y axis board, 4 multiple lamp beads, 5 mounting block, 6 first lead wire, 7 rectangular frame, 8 rechargeable battery, 9 second lead wire, 10 rotating rod, 11 installation Plate, 12 damping sleeves, 13 connecting rods, 14 supporting rods, 15 anti-skid sleeves.
具体实施方式Detailed ways
下面将结合本实用新型实施例中的附图,对本实用新型实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本实用新型一部分实施例,而不是全部的实施例。The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example.
在本实用新型的描述中,需要理解的是,术语“上”、“下”、“前”、“后”、“左”、“右”、“顶”、“底”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系,仅是为了便于描述本实用新型和简化描述,而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作,因此不能理解为对本实用新型的限制。In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inside", The orientation or positional relationship indicated by "outside" is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation , are constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.
参照图1-3,一种灯带式正态分布模型,包括展示板1、X轴板2、 Y轴板3、多个灯珠4和多个安装块5,展示板1的前侧开设有两个交错设置的凹槽,X轴板2和Y轴板3的表面分别开设有卡槽,X轴板2和Y轴板3之间通过两个卡槽卡接设置,X轴板2和Y轴板3分别固定设置于对应的凹槽的内部,每个灯珠4分别与对应的安装块5 固定连接,每个安装块5均放置于展示板1的表面,相邻的两个灯珠 4之间分别通过第一导线6电性连接,展示板1的前侧固定设置有供电机构,展示板1的后侧固定设置有支撑机构。1-3, a light strip-type normal distribution model includes a
供电机构包括矩形框7和可充电蓄电池8,矩形框7固定设置于展示板1的前侧拐角处,可充电蓄电池8固定设置于矩形框7的内部,可充电蓄电池8通过第二导线9与其中一个灯珠4电性连接,通过可充电蓄电池8对灯珠4进行供电,从而能够使整个模型在任意时刻使用,无需使用时寻找电源。The power supply mechanism includes a
支撑机构包括转杆10和两个安装板11,两个安装板11对称固定设置于展示板1的后侧,转杆10设置于两个安装板11之间且两端杆壁分别通过阻尼套12与对应的安装板11转动连接,转杆10的杆壁通过两个连接杆13固定连接有支撑杆14,便于通过支撑杆14对展示板1进行支撑,从而能够使展示板1从多个角度进行展示。The support mechanism includes a rotating
展示板1采用磁性材料制造而成,每个安装块5均采用磁铁,每个安装块5均与展示板1吸附连接,便于在将展示板1垂直放置时能够正常进行展示。The
支撑杆14的杆壁对称固定套接有两个防滑套15,通过设置的两个防滑套15能够有效增加支撑杆14的表面的摩擦力,从而使展示板 1放置时保持稳定。The rod wall of the
每个第一导线6与第二导线9的颜色均不同,尽量避免学生将第二导线9与多个第一导线6形成的函数曲线混淆。The colors of each of the
本实用新型中,通过设置的安装块5与展示板1之间的吸附连接,能够实现对每个安装块5的位置固定,即对每个灯珠4的位置固定,从而尽量避免在通过模型讲解正态分布函数时灯珠4的位置发生移动,通过设置的多个安装块5和多个第一导线6,能够利用每个第一导线6形成的函数曲线反映偏度,通过设置的支撑机构,能够在课堂上课时通过支撑机构对展示板1进行支撑,从而能够便于不同位置的学生观看,在不使用时,转动支撑杆14,支撑杆14通过两个连接杆 13带动转杆10转动,从而使支撑杆14贴合展示板1的后侧壁,进而能够便于对整个模型进行存放。In the present invention, through the adsorption connection between the installed
以上所述,仅为本实用新型较佳的具体实施方式,但本实用新型的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本实用新型揭露的技术范围内,根据本实用新型的技术方案及其实用新型构思加以等同替换或改变,都应涵盖在本实用新型的保护范围之内。The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited to this. Equivalent replacement or modification of the new technical solution and its utility model concept shall be included within the protection scope of the present utility model.
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