CN211319531U

CN211319531U - Mathematical statistics presentation device

Info

Publication number: CN211319531U
Application number: CN202020364000.0U
Authority: CN
Inventors: 江喜林
Original assignee: Hubei Normal University
Current assignee: Hubei Normal University
Priority date: 2020-03-20
Filing date: 2020-03-20
Publication date: 2020-08-21
Anticipated expiration: 2030-03-20

Abstract

The utility model discloses a mathematical statistics presentation device, including the demonstration case, the welding has a base on the bottom tank wall of demonstration case, the front side of demonstration case is a clear glass, demonstration roof portion tank wall vertical welding has a statistics board, the middle part position welding of demonstration incasement wall has a horizontally baffle, be equipped with the dice presentation device of throwing in the demonstration case, be equipped with adjustable statistics device on the statistics board, the dice presentation device of throwing includes the dice board of throwing. The utility model discloses be equipped with the dice presentation device of throwing, through pressing the dice board that the demonstration case both sides extend, remove and press the back and throw the dice board and upwards slide under the spring action of first spring, when the both ends of throwing the dice board offset with vertical spout upper end, the dice on the dice board is thrown because of inertia, then on the dice board of throwing again, and the process of throwing the dice and the point of dice are shot down by the camera and are enlargied the broadcast for the student through the display, have guaranteed the teaching quality.

Description

Mathematical statistics presentation device

Technical Field

The utility model relates to a teaching presentation device technical field especially relates to a mathematical statistics presentation device.

Background

Along with the development of economy, people have higher and higher requirements on teaching quality, governments pay more and more attention to education, and auxiliary equipment for teaching is more and more.

The mathematical statistics is a branch of mathematics, which is divided into description statistics and inference statistics, and is based on probability theory to research the statistical regularity of a large number of random phenomena, wherein the dice is rolled to make an example widely applied in probability theory teaching.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a mathematical statistics demonstration device.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a mathematical statistics presentation device, includes the demonstration case, the welding has a base on the bottom tank wall of demonstration case, the front side of demonstration case is a clear glass, demonstration roof portion tank wall vertical welding has a statistics board, the middle part position welding of demonstration incasement wall has a horizontally baffle, be equipped with the dice presentation device of throwing in the demonstration case, be equipped with adjustable statistics device on the statistics board.

Preferably, the dice rolling demonstration device comprises a dice rolling plate, vertical sliding grooves are formed in two side box walls of the lower end of the demonstration box, two ends of the dice rolling plate are connected with the vertical sliding grooves in two sides of the demonstration box in a sliding mode, two ends of the dice rolling plate penetrate through the two side box walls of the demonstration box and extend out of the box, three first springs are welded to the inner wall of the bottom of the demonstration box, the upper ends of the three first springs are fixedly connected with the lower end face of the dice rolling plate, a displayer is installed in the demonstration box above the partition plate, a camera is installed in the center of the lower end face of the partition plate, and the camera is connected with the displayer through a data line.

Preferably, adjustable statistics device includes six sliding blocks, six vertical sliding trays have been seted up on the statistics board, every sliding tray and a sliding block sliding connection, every a plurality of recesses have been seted up on the both sides cell wall of sliding tray.

Preferably, a cavity and four communicating ports are formed in each sliding block, the four communicating ports are located on two sides of each sliding block respectively and communicated with the corresponding cavity, two U-shaped sliding blocks are connected in the cavity in a sliding mode, two U-shaped ends of the two U-shaped sliding blocks are connected with side walls of the four communicating ports in a sliding mode, the opening directions of the two U-shaped sliding blocks are opposite, and a second spring is connected between the two U-shaped sliding blocks.

Preferably, the width of the front side of the sliding block is 100mm wider than that of the rear side, the difference between two ends of the U-shaped sliding block is 40mm, and the distance between every two adjacent grooves is equal.

Preferably, the display is a liquid crystal display of model PE24QA2, and the camera is a high-definition camera of model C270 i.

The utility model discloses in, compare with prior art, the utility model has the advantages of:

1. the utility model discloses be equipped with the dice presentation device of throwing, through pressing the dice board that the demonstration case both sides extend, remove and press the back and throw the dice board and upwards slide under the spring action of first spring, when the both ends of throwing the dice board offset with vertical spout upper end, the dice on the dice board is thrown because of inertia, then on the dice board of throwing again, and the process of throwing the dice and the point of dice are shot down by the camera and are enlargied the broadcast for the student through the display, have guaranteed the teaching quality.

2. The utility model discloses the number of points that the dice of every turn obtained can be recorded on the board of making statistics, through the U type slider one end of pinching sliding block both sides, makes the U type slider other end leave the recess, removes the restriction, and the sliding block that slides this moment changes its position to corresponding numerical value department, and after whole experiment was accomplished, whole statistical data just can be on the board of making statistics three-dimensional showing, improves student's interest.

Drawings

Fig. 1 is the utility model provides a structure schematic diagram of a mathematical statistics presentation device.

Fig. 2 is an enlarged schematic view of a point a of the mathematical statistics demonstration apparatus provided by the utility model.

Fig. 3 is the utility model provides a sliding block inner structure cross-sectional view of mathematical statistics presentation device.

In the figure: the teaching demonstration box comprises a demonstration box 1, a base 2, a vertical sliding groove 3, a dice-throwing plate 4, a first spring 5, a partition plate 6, a display 7, a camera 8, a statistical plate 9, a sliding groove 10, a sliding block 11, a groove 12, a cavity 13, a communication port 14, a U-shaped sliding block 15 and a second spring 16.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Referring to fig. 1-3, a mathematical statistics presentation device, including demonstration case 1, the welding has a base 2 on the bottom tank wall of demonstration case 1, and the front side of demonstration case 1 is a transparent glass, not only can see the process of throwing the dice, also can protect display 7, and demonstration case 1 top tank wall vertical welding has a statistics board 9, and the middle part position welding of demonstration case 1 inner wall has a horizontally baffle 6, is equipped with the dice presentation device of throwing in the demonstration case 1, is equipped with adjustable statistics device on the statistics board 9.

The dice rolling demonstration device comprises a dice rolling plate 4, vertical sliding grooves 3 are formed in two side box walls of the lower end of a demonstration box 1, two ends of the dice rolling plate 4 are connected with the vertical sliding grooves 3 in two sides of the demonstration box 1 in a sliding mode, two ends of the dice rolling plate 4 penetrate through the two side box walls of the demonstration box 1 and extend out of the box, three first springs 5 are welded to the inner wall of the bottom of the demonstration box 1, the upper ends of the three first springs 5 are fixedly connected with the lower end face of the dice rolling plate 4, a display 7 is installed in the demonstration box 1 above a partition plate 6, a camera 8 is installed in the center position of the lower end face of the partition plate 6, the camera 8 is connected with the display 7 through a data line, the display 7 is a liquid crystal display of type PE24QA2, the camera 8 is a camera of type C270i, and shot pictures are clearer.

Adjustable statistical device includes six sliding blocks 11, six vertical sliding chutes 10 have been seted up on statistics board 9, every

sliding chute

10 and 11 sliding connection of a sliding block, a plurality of recesses 12 have been seted up on the both sides cell wall of every sliding chute 10, cavity 13 and four intercommunication mouth 14 have been seted up in every sliding block 11, four intercommunication mouths 14 are located the both sides of sliding block 11 respectively, four intercommunication mouths 14 and equal cavity 13 intercommunication, sliding connection has two U type sliders 15 in the cavity 13, two U type sliders 15's U type both ends respectively with four intercommunication mouth 14's lateral wall sliding connection, two U type sliders 15's opening opposite direction, be connected with a second spring 16 between two U type sliders 15, sliding block 11's front side width is than the wide 100mm of rear side width, U type slider 15's both ends differ 40mm, the distance between every two adjacent recesses 12 equals.

The utility model discloses in, prevent to arrange this presentation device in on the smooth desktop, open display 7 and camera 8, both hands press the dice board 4 that the demonstration case 1 both sides extend downwards respectively, later remove to press, dice board 4 upwards slides under the spring action of first spring 5, when the both ends of dice board 4 offset with vertical spout 3 upper ends, dice on the dice board 4 is thrown because of inertia, then on the dice board 4 is thrown again, and the process of dice and the point of dice are shot by camera 8 and are got down and enlargeed the broadcast for the student through display 7, the overall process of dice is thrown to the student in whole classroom all can be clear observation.

The number of points obtained by throwing the dice every time can be recorded on the counting plate 10, one ends of the U-shaped sliding blocks 15 on the two sides of the sliding block 11 are pinched, the other ends of the U-shaped sliding blocks 15 leave the grooves 12, limitation is removed, the sliding block 11 changes the position to the corresponding numerical value, and after the whole experiment is completed, the whole statistical data can be displayed on the counting plate 9 in a three-dimensional mode, so that the interest and teaching quality of students can be improved.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a mathematical statistics presentation device, includes demonstration case (1), its characterized in that, the welding has a base (2) on the bottom tank wall of demonstration case (1), the front side of demonstration case (1) is a clear glass, demonstration case (1) top tank wall vertical welding has a statistics board (9), the middle part position welding of demonstration case (1) inner wall has a horizontally baffle (6), be equipped with the dice throw presentation device in demonstration case (1), be equipped with adjustable statistics device on statistics board (9).

2. A mathematical statistics presentation device according to claim 1, characterized in that the dice rolling presentation device comprises a dice rolling board (4), vertical sliding grooves (3) are respectively arranged on the box walls on the two sides of the lower end of the demonstration box (1), two ends of the dice-throwing plate (4) are connected with the vertical chutes (3) at two sides of the demonstration box (1) in a sliding way, two ends of the dice-throwing plate (4) penetrate through the two side box walls of the demonstration box (1) and extend out of the box, the inner wall of the bottom of the demonstration box (1) is welded with three first springs (5), the upper ends of the three first springs (5) are fixedly connected with the lower end face of the dice-throwing plate (4), a display (7) is arranged in the demonstration box (1) above the clapboard (6), a camera (8) is arranged at the center of the lower end surface of the clapboard (6), the camera (8) is connected with the display (7) through a data line.

3. A mathematical statistics presentation device as claimed in claim 1, characterized in that said adjustable statistics device comprises six sliding blocks (11), said statistics board (9) is provided with six vertical sliding grooves (10), each sliding groove (10) is slidably connected with one sliding block (11), and two side walls of each sliding groove (10) are provided with a plurality of grooves (12).

4. A mathematical statistics demonstration device according to claim 3, characterized in that each sliding block (11) is provided with a cavity (13) and four communication ports (14), the four communication ports (14) are respectively located at two sides of the sliding block (11), the four communication ports (14) are communicated with the cavity (13), two U-shaped sliders (15) are slidably connected in the cavity (13), two U-shaped ends of the two U-shaped sliders (15) are respectively slidably connected with side walls of the four communication ports (14), the opening directions of the two U-shaped sliders (15) are opposite, and a second spring (16) is connected between the two U-shaped sliders (15).

5. A mathematical statistic presentation device according to claim 4, wherein said sliding block (11) has a front width 100mm wider than a rear width, the two ends of said U-shaped sliding block (15) differ by 40mm, and the distance between each two adjacent grooves (12) is equal.

6. A device according to claim 2, wherein said display (7) is a liquid crystal display of the type PE24QA2 and said camera (8) is a high definition camera of the type C270 i.