CN220272023U - Mathematics teaching aid model - Google Patents

Abstract

The utility model discloses a mathematical teaching aid model, which comprises a bottom plate, wherein one side of the upper end of the bottom plate is fixedly provided with a stand column, the upper end of the stand column is movably provided with a shell through a rotating shaft, the outer side surface of the shell is provided with a visual glass window, the interior of the shell is provided with a model mechanism for teaching, the model mechanism comprises a storage bucket, fixing columns and a collecting tank, the upper end of the interior of the shell is fixedly provided with the storage bucket, the middle part of the interior of the shell is uniformly provided with a plurality of fixing columns, and the lower end of the interior of the shell is fixedly provided with the collecting tank. The utility model has good use effect, the weight of the small balls in each collecting tank can be measured in real time through the weighing mechanism, then the single weight of the small balls is removed, the specific number of the small balls in each collecting tank can be obtained, and then the number of the fixed columns is changed, so that students can conveniently know the mutual probability relation between the number of the fixed columns and the number of the balls which should enter each collecting tank, and the teaching effect is improved.

Description

Mathematics teaching aid model

Technical Field

The utility model relates to the technical field of mathematical teaching aids, in particular to a mathematical teaching aid model.

Background

The basic structure of the mathematical teaching aid model for simulating normal distribution in the prior art is that a storage bin for storing a plurality of small balls is arranged, after the balls are overturned, the small balls collide with fixed columns on a falling path and randomly fall into a storage tank at the lowest position, and finally the small balls form a normal curve which is bell-shaped, and the normal curve is low at two ends and high in middle and is symmetrical left and right due to the bell shape, so people are often called bell-shaped curves, and the mathematical teaching aid model is commonly used in probability teaching.

However, in the prior art, it is not known how many balls are specifically introduced into each storage tank, and students can only observe the normal curve formed by the balls, but cannot learn the mutual probability relation between how many fixing columns and how many balls should be introduced into each storage tank, so that a mathematical teaching aid model is needed to improve the problem.

Disclosure of Invention

The utility model aims to provide a mathematical teaching aid model for solving the problems in the background art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a mathematics teaching aid model, includes the bottom plate, bottom plate upper end one side is fixed to be provided with the stand, the stand upper end is provided with the casing through the pivot activity, the casing outside surface is provided with visual glass window, the inside model mechanism that is used for teaching that is provided with of casing, model mechanism includes storage bucket, fixed column, collecting vat, the inside upper end of casing is fixed to be provided with storage bucket, the inside middle part of casing evenly is provided with a plurality of fixed columns, the inside lower extreme of casing is fixed to be provided with the collecting vat, the inside lower extreme of casing is provided with the weighing machine who is used for measuring ball quantity in every collecting vat and constructs, weighing machine constructs including atress board, measurement scale, the inside lower extreme of collecting vat is fixed to be provided with the atress board, the inside fixed measurement scale that is provided with of atress board lower extreme.

Preferably, the visual glass window is fixed on the outer side surface of the shell in a magnetic attraction mode, and the visual glass window is fixed in a magnetic attraction mode, so that the visual glass window can be conveniently detached later, the number and the positions of the fixing columns in the shell can be conveniently and randomly changed, the magnetic attraction is fixed by adopting strong magnetism, and bolts can be selected to be fixed as required.

Preferably, a plurality of clamping grooves are uniformly formed in the side wall of the inner side of the shell, the fixing columns are arranged inside the shell through movable clamping of the clamping grooves, the fixing columns are fixed through the clamping grooves, the fixing columns are convenient and fast, different numbers of fixing columns at different positions can be fixed randomly according to requirements, then the number of small balls collected in each collecting groove is matched, and students can conveniently know the number of the fixing columns, the positions of the fixing columns and the mutual probability relation of the number of balls which should enter in each groove, so that the teaching effect is improved.

Preferably, guide plates are fixedly arranged on two sides of the lower end of the storage hopper, and the small balls can be guided back into the storage hopper through the guide plates.

Preferably, the rotating shaft where the shell is located is a damping rotating shaft, and the shell can not rotate under the condition that no manual operation is ensured through the damping rotating shaft.

Preferably, the bottom plate is internally provided with a balancing weight, and the stability of the whole device in use can be improved through the balancing weight.

Compared with the prior art, the utility model has the beneficial effects that:

1. the utility model can measure the weight of the pellets in each collecting tank in real time through the weighing mechanism, then remove the single weight of the pellets, and obtain the specific number of the pellets in each collecting tank, thereby facilitating students to know the number of the pellets in each collecting tank, and then can make a bar graph to help know the changing curve.

2. When the utility model is used, the positions and the number of the fixing columns can be changed arbitrarily according to the needs, and as the fixing columns are fixed in the shell through the clamping grooves, the fixing columns are convenient to detach and mount, so that the fixing columns with different numbers and different positions can be fixed arbitrarily according to the needs, and then the number of the balls collected in each collecting groove is matched, so that students can conveniently know the number of the fixing columns, the mutual probability relation between the positions and the number of the balls which should enter each groove, and the teaching effect is improved.

Drawings

FIG. 1 is a schematic diagram of the overall structure of a mathematical teaching aid model of the present utility model;

FIG. 2 is a view showing the internal structure of a mathematical teaching aid model housing according to the present utility model;

fig. 3 is a view showing the opening of a clamping groove of a mathematical teaching aid model of the utility model.

In the figure: 1. a bottom plate; 2. a column; 3. a housing; 4. a visual glass window; 5. a storage hopper; 6. fixing the column; 7. a collection tank; 8. a force-bearing plate; 9. a measuring scale; 10. a clamping groove; 11. and a guide plate.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-3, the present utility model provides a technical solution: the utility model provides a mathematics teaching aid model, includes bottom plate 1, bottom plate 1 upper end one side is fixed to be provided with stand 2, stand 2 upper end is provided with casing 3 through the pivot activity, casing 3 outside surface is provided with visual glass window 4, the inside model mechanism that is used for teaching that is provided with of casing 3, model mechanism is including storing bucket 5, fixed column 6, collecting vat 7, the inside upper end of casing 3 is fixed to be provided with and is stored bucket 5, the inside middle part of casing 3 evenly is provided with a plurality of fixed columns 6, the inside lower extreme of casing 3 is fixed to be provided with collecting vat 7, the inside lower extreme of casing 3 is provided with the weighing machine who is arranged in measuring the pellet quantity in every collecting vat 7 constructs, weighing machine constructs including atress board 8, measurement scale 9, the inside lower extreme of collecting vat 7 is fixed to be provided with atress board 8, the inside of casing 3 is fixed to be provided with measurement scale 9 at atress board 8 lower extreme.

The visual glass window 4 is fixed on the outer side surface of the shell 3 in a magnetic attraction mode, and the visual glass window 4 is fixed in a magnetic attraction mode, so that the visual glass window 4 can be conveniently detached later, the number and the positions of the fixing columns 6 in the shell 3 can be conveniently and randomly changed, the magnetic attraction is fixed by adopting strong magnetism, and bolts can be selected to be fixed according to the requirement; a plurality of clamping grooves 10 are uniformly formed in the side wall of the inner side of the shell 3, the fixing columns 6 are movably clamped and arranged in the shell 3 through the clamping grooves 10, and the fixing columns 6 are fixed through the clamping grooves 10, so that the fixing columns 6 in different numbers and positions can be fixed at will according to requirements, and then the number of the balls collected in each collecting groove 7 is matched, so that students can conveniently know the mutual probability relation between the number and the positions of the fixing columns 6 and the number of the balls which should enter each groove, and the teaching effect is improved; guide plates 11 are fixedly arranged on two sides of the lower end of the storage hopper 5, and small balls can be guided back into the storage hopper 5 through the guide plates 11; the rotating shaft where the shell 3 is located is a damping rotating shaft, and the shell 3 can not rotate under the condition that no manual operation is ensured through the damping rotating shaft; the bottom plate 1 is inside to be provided with the balancing weight, can improve the stability when whole device uses through the balancing weight.

Working principle: when the device is used, balls can be stored in the storage hopper 5, when the storage hopper 5 is inverted, the balls naturally fall down and can form normal distribution under the collision action with the fixed columns 6 and are stored in the collecting grooves 7, the weight of the balls in each collecting groove 7 can be measured in real time through the weighing mechanism, then the single weight of the balls is removed, the specific ball number in each collecting groove 7 can be obtained, so that students can conveniently know the ball number in each collecting groove 7, then the balls can be made into a histogram to help know the changing curve, and the position and the number of the fixed columns 6 can be changed randomly according to the requirement when the device is used, because the fixed columns 6 are fixed in the shell 3 through the clamping grooves 10, the fixed columns 6 are convenient to detach and install, the fixed columns 6 with different positions can be fixed randomly according to the requirement, and then the ball number collected in each collecting groove 7 can be matched, so that students can conveniently know the mutual probability relation between the positions of the fixed columns 6 and the balls entering in each groove, and the teaching effect is improved, and the teaching effect is the working principle of the utility model.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. A mathematical teaching aid model comprising a base plate (1), characterized in that: the utility model discloses a floor (1), including bottom plate (1), bottom plate (2) are fixed to be provided with stand (2), stand (2) upper end is provided with casing (3) through the pivot activity, casing (3) outside surface is provided with visual glass window (4), casing (3) inside is provided with the model mechanism that is used for the teaching, model mechanism is including storing fill (5), fixed column (6), collecting vat (7), casing (3) inside upper end is fixedly provided with and stores fill (5), casing (3) inside middle part evenly is provided with a plurality of fixed columns (6), casing (3) inside lower extreme is fixedly provided with collecting vat (7), casing (3) inside lower extreme is provided with the weighing machine who is used for measuring the ball quantity in every collecting vat (7), weighing machine constructs including atress board (8), measurement scale (9), inside lower extreme fixed being provided with of collecting vat (7) is provided with atress board (8) inside.

2. A mathematical teaching aid model according to claim 1 and wherein: the visual glass window (4) is fixed on the outer side surface of the shell (3) in a magnetic attraction mode.

3. A mathematical teaching aid model according to claim 1 and wherein: a plurality of clamping grooves (10) are uniformly formed in the inner side wall of the shell (3), and the fixing columns (6) are movably clamped and arranged inside the shell (3) through the clamping grooves (10).

4. A mathematical teaching aid model according to claim 1 and wherein: guide plates (11) are fixedly arranged on two sides of the lower end of the storage hopper (5).

5. A mathematical teaching aid model according to claim 1 and wherein: the rotating shaft where the shell (3) is located is a damping rotating shaft.

6. A mathematical teaching aid model according to claim 1 and wherein: the bottom plate (1) is internally provided with a balancing weight.