CN210166996U

CN210166996U - Normal distribution teaching demonstration teaching aid

Info

Publication number: CN210166996U
Application number: CN201921041006.8U
Authority: CN
Inventors: 徐琛
Original assignee: Qilu Normal University
Current assignee: Qilu Normal University
Priority date: 2019-07-05
Filing date: 2019-07-05
Publication date: 2020-03-20
Anticipated expiration: 2029-07-05

Abstract

The utility model discloses a normal distribution teaching demonstration teaching aid, belonging to the teaching demonstration teaching aid field; the demonstration teaching aid comprises a demonstration board, a result board and a flow distribution pipeline, wherein the bottom surface of the demonstration board and the top surface of the result board are connected in a sliding, inserting, combining and matching mode; a plurality of transparent shunting containers which are uniformly and transversely distributed are arranged in front of the result plate; the shunt pipeline is arranged in front of the demonstration board through the splicing mechanism and comprises a plurality of Y-shaped pipes A, Y B and bent pipes which are spliced and matched with each other, the Y-shaped pipes A, Y B and the bent pipes are spliced and matched with each other, and teachers and students can be combined and spliced to form the required shunt pipeline according to experimental requirements; the shunt pipeline, the plug-in mechanism and the demonstration board form a demonstration area, and the result board and the shunt container form a result area; the combination of pegging graft slides between demonstration board and the result board, this novel demonstration teaching aid flexible operation just does not need conditions such as electric power, network, and is lower to the requirement of teaching environment.

Description

Normal distribution teaching demonstration teaching aid

Technical Field

The utility model discloses a normal distribution teaching demonstration teaching aid relates to teaching demonstration teaching aid technical field.

Background

The contents related to normal distribution are taught in the courses of statistics, engineering design, quality management and the like in higher education. In the traditional teaching, normal distribution is mainly taught through methods such as a display formula and a curve graph, the teaching process is boring and difficult to understand, and the teaching effect is poor. When the examples of learning achievement, height and the like are used for displaying, only the result data lack the process of generating data. Part of the teacher uses excel and other software to simulate the data generation process, a certain teaching result is obtained, but the software generates data according to a preset normal distribution formula, and the data extremely conforms to a curve, is over theoretical and does not conform to data in real life. For solving the above problem in normal distribution teaching, the device is designed for meeting classroom teaching.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to prior art's problem provides a normal distribution teaching demonstration teaching aid, and the technical scheme who adopts is: a demonstration teaching aid for normal distribution teaching comprises a demonstration board, a result board and a flow distribution pipeline, wherein the bottom surface of the demonstration board and the top surface of the result board are connected in a sliding, inserting, combining and matching mode;

a plurality of transparent shunting containers which are uniformly and transversely distributed are arranged in front of the result plate;

the shunt pipe is arranged in front of the demonstration board through the insertion mechanism, and the interior of the shunt pipe can be communicated with the interior of the shunt container;

the reposition of redundant personnel pipeline includes Y type pipe A, Y type pipe B and the return bend of the mutual grafting cooperation of several, and the angle between every adjacent pipeline of every Y type pipe A, Y type pipe B and return bend is 120, and wherein one end of every Y type pipe A pipeline and return bend pipeline is the concave head, and the one end of two adjacent pipelines of every Y type pipe B is the concave head, and pipeline and concave head can peg graft the cooperation.

The sliding insertion combination comprises an inverted T-shaped sliding block, an inverted T-shaped sliding groove is formed in one side of the result board, the top surface of the inner wall of the T-shaped sliding groove is communicated with the outside, the T-shaped sliding block is located in the T-shaped sliding groove, and the top surface of the T-shaped sliding block is fixedly connected with the bottom surface of the demonstration board.

The demonstration board is characterized in that a rectangular demonstration groove is formed in the front of the demonstration board, the top surface and the bottom surface of the inner wall of the demonstration groove are communicated with the outside at the same time, and the shunt tubes are movably connected with the rear side of the inner wall of the demonstration groove in an inserting mode through the inserting mechanisms in an inserting mode.

The splicing mechanism comprises a splicing rod and a clamping ring, the clamping ring is fixedly arranged at the front end of the splicing rod, an opening is formed in the front side of the clamping ring, and the A, Y-shaped pipe B and the pipe wall of the bent pipe can be respectively clamped into the clamping ring; the rear side of the inner wall of the demonstration groove is provided with a plurality of plug-in holes which are uniformly distributed, and the rear ends of the plug-in rods can be respectively inserted into the corresponding plug-in holes.

And the bottom surface of the result plate is fixedly provided with a base.

The front of the base is provided with a transverse scale and a normal distribution scale, the scales of the transverse scale and the scales of the normal distribution scale are in one-to-one correspondence with the shunt containers respectively, and the number of the shunt containers is at least 7.

The Y-shaped pipe A, Y type pipe B and the bent pipe are both pipelines made of transparent materials.

The front of the shunt container is provided with a vertical axis scale.

The utility model has the advantages that: the Y-shaped pipe A, Y type pipe B is matched with the bent pipe for insertion, and teachers and students can combine and insert to form a required flow distribution pipeline according to experiment requirements; the shunt pipeline, the plug-in mechanism and the demonstration board form a demonstration area, and the result board and the shunt container form a result area; through the cooperation of the grafting combination of sliding between demonstration board and the result board connection, this novel demonstration teaching aid flexible operation just does not need conditions such as electric power, network, and is lower to teaching environment's requirement, and this novel demonstration teaching aid can show the formation process of normal distribution to the student simultaneously, and teaching effect is better.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.

Fig. 1 is a schematic structural diagram of the present invention; FIG. 2 is an enlarged view of a cross-sectional view taken along line A-A of FIG. 1; FIG. 3 is a view from the direction B of FIG. 1; FIG. 4 is a view in the direction C of FIG. 1; FIG. 5 is a schematic structural view of a Y-tube A4; FIG. 6 is a schematic structural view of a Y-tube B5; fig. 7 is a schematic structural view of the elbow pipe 6.

Reference numerals:

a demonstration board-1; results board-2; a diversion container-3; y-shaped pipe A-4; y-type pipe B-5; a bent pipe-6; a T-shaped sliding block-7; a T-shaped chute-8; a demonstration slot-9; a plug rod-10; a snap ring-11; a plug hole-12; a base-13.

Detailed Description

The present invention is further described with reference to the following drawings and specific embodiments so that those skilled in the art can better understand the present invention and can implement the present invention, but the embodiments are not to be construed as limiting the present invention.

The first embodiment is as follows:

a normal distribution teaching demonstration prop comprises a demonstration board 1, a result board 2 and a shunt pipeline, wherein the bottom surface of the demonstration board 1 and the result board 2 are connected in a sliding, inserting, combining and matching mode;

the sliding insertion combination comprises an inverted T-shaped sliding block 8, an inverted T-shaped sliding groove 9 is formed in one side of the result plate 2, the top surface of the inner wall of the T-shaped sliding groove 9 is communicated with the outside, the T-shaped sliding block 8 is located in the T-shaped sliding groove 9, and the top surface of the T-shaped sliding block 8 is fixedly connected with the bottom surface of the demonstration plate 1;

the front of the result plate 2 is provided with 9 uniformly and transversely distributed shunt containers 3 made of transparent materials, the front of each shunt container 3 is provided with a vertical axis scale, the bottom surface of the result plate 2 is fixedly provided with a base 13, the front of the base 13 is provided with a transverse scale and a normal distribution scale, and the scales of the transverse scale and the scales of the normal distribution scale are respectively in one-to-one correspondence with the shunt containers 3;

the flow distribution pipeline is arranged in front of the demonstration board 1 through the plug-in mechanism and comprises a plurality of transparent Y-shaped pipes A4, Y-shaped pipes B and an elbow 6 which are mutually plugged and matched, one end of each Y-shaped pipe A4 pipeline and one end of each elbow 6 pipeline are both concave heads, one end of each Y-shaped pipe B5 adjacent to each other is a concave head, and the Y-shaped pipes A4, the Y-shaped pipes B and the elbows 6 can be mutually plugged and matched with the concave heads;

before the novel demonstration teaching aid is used for normal distribution teaching, a teacher firstly matches a demonstration board 1 with a result board 2 through a T-shaped sliding block 8 and a T-shaped sliding groove 9 to be in sliding insertion combination, then the teacher can insert and combine a convex head and a concave head among a Y-shaped pipe A4, a Y-shaped pipe B and a bent pipe 6 according to research requirements to form a shunt pipe, and the teacher can start a demonstration experiment after fixing the combined shunt pipe in front of the demonstration board 1 through an insertion structure;

a teacher can pour experimental liquid into a pipeline poured to the upper end of the shunt pipeline by means of a funnel, the liquid flows through the shunt pipeline and flows into the corresponding shunt container 3 according to the shunt condition, students can observe the flow of the experimental liquid through the transparent Y-shaped pipe A4, the transparent Y-shaped pipe B and the elbow pipe 6, then the volume of the liquid in the shunt container is read through the vertical axis scale, the experimental result is compared and referred through the normal distribution scale, and the students can easily observe and analyze the experimental liquid;

this novel demonstration teaching aid's reposition of redundant personnel pipeline is made simply, easily change after damaging, and can be according to the research demand of difference to Y type pipe A4, Y type pipe B and return bend 6 change of pegging graft, the flexible operation just does not need electric power, conditions such as network, requirement to the teaching environment is lower, can be used for the teacher to demonstrate in classroom teaching, also can be used for student's practice, the experiment, it operates by hand in person to have used the student, observe and take notes the experimental result, be of value to the constructor teaching, thereby reinforcing teaching effect.

Example two:

on the basis of the first embodiment, a rectangular demonstration groove 9 is formed in the front of the demonstration plate 1, the top surface and the bottom surface of the inner wall of the demonstration groove 9 are communicated with the outside at the same time, the shunt tube 3 is movably matched with the rear side of the inner wall of the demonstration groove 9 in an inserting mode through an inserting mechanism, the inserting structure comprises an inserting rod 10 and a clamping ring 11, the clamping ring 11 is fixedly installed at the front end of the inserting rod 10, an opening is formed in the front side of the clamping ring 11, a Y-shaped tube A4, a Y-shaped tube B5 and the tube wall of the elbow 6 can be clamped into the clamping ring 11 respectively, a plurality of evenly-distributed inserting holes 12 are formed in the rear side of the inner wall of the demonstration groove 9, and the rear ends of the; after the teacher finishes the grafting of reposition of redundant personnel pipeline, the teacher with snap ring 11 card on the pipeline outer wall of Y type pipe A4, Y type pipe B5 and return bend 6 that correspond, then insert peg graft pole 11 to spliced eye 12 in, fix the reposition of redundant personnel pipeline in demonstration groove 9, guarantee the stability of pegging graft between Y type pipe A4, Y type pipe B5 and the return bend 6 of reposition of redundant personnel pipeline in the experiment to guarantee the experiment effect.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. A normal distribution teaching demonstration teaching aid is characterized by comprising a demonstration board, a result board and a flow distribution pipeline, wherein the bottom surface of the demonstration board and the top surface of the result board are connected in a sliding, inserting, combining and matching mode;

the split-flow pipeline comprises a plurality of Y-shaped pipes A, Y B and an elbow pipe which are mutually inserted and matched, wherein one end of each Y-shaped pipe A pipeline and one end of each elbow pipe pipeline are concave heads, one end of each two adjacent pipelines of each Y-shaped pipe B is a concave head, and the pipelines and the concave heads can be inserted and matched.

2. A demonstration teaching aid according to claim 1, wherein the sliding plug combination comprises an inverted T-shaped sliding block, an inverted T-shaped sliding groove is formed in one side of the result board, the top surface of the inner wall of the T-shaped sliding groove is communicated with the outside, the T-shaped sliding block is located in the T-shaped sliding groove, and the top surface of the T-shaped sliding block is fixedly connected with the bottom surface of the demonstration board.

3. A demonstration teaching aid according to claim 1, wherein a rectangular demonstration groove is formed in the front of the demonstration plate, the top surface and the bottom surface of the inner wall of the demonstration groove are communicated with the outside simultaneously, and the shunt pipe is movably inserted and matched with the rear side of the inner wall of the demonstration groove through an insertion mechanism.

4. A demonstration teaching aid according to claim 3, wherein the plug-in mechanism comprises a plug-in rod and a snap ring, the snap ring is fixedly arranged at the front end of the plug-in rod, an opening is formed in the front side of the snap ring, and the A, Y-shaped tubes B and the tube wall of the bent tube can be respectively clamped into the snap ring; the rear side of the inner wall of the demonstration groove is provided with a plurality of plug-in holes which are uniformly distributed, and the rear ends of the plug-in rods can be respectively inserted into the corresponding plug-in holes.

5. A demonstration teaching aid according to claim 1 wherein the base is fixedly mounted to the underside of the results board.

6. A demonstration teaching aid according to claim 5, characterized in that the base is provided with a transverse scale and a normal distribution scale in front of the base, the scales of the transverse scale and the scales of the normal distribution scale are respectively in one-to-one correspondence with the shunt containers, and the number of the shunt containers is at least 7.

7. A demonstration teaching aid according to any one of claims 1 to 6, wherein the Y-shaped tube A, Y type tube B and the elbow are both transparent tubes.

8. A demonstration teaching aid according to any of claims 1 to 6 wherein the front of the diversion container is provided with a vertical axis scale.