Probability calculation demonstration device for mathematics education

Abstract

The invention discloses probability calculation demonstration equipment for mathematics education, and belongs to the technical field of probability calculation demonstration. The demonstration equipment for probability calculation comprises a bottom plate, and a driving assembly, a supporting plate, a buffer assembly and a fixing plate which are sequentially arranged on the bottom plate, the buffering assembly comprises a third long block, a first protruding block, a rectangular block, a third connecting rod, an elastic component, a fourth connecting rod, a fifth connecting rod, a second protruding block, a second corner lug, a third connecting plate, a fourth connecting plate, a third corner lug and a fourth corner lug. Equipment is pushed to a designated position through cooperation of multiple sets of pulleys, the equipment jolts in the moving process, a fixing plate moves downwards along the exterior of a fifth connecting rod, meanwhile, the fixing plate extrudes a third angle lug, the third angle lug drives a third connecting plate, the third connecting plate moves along the interior of a second angle lug, and the equipment is pushed to the designated position. And meanwhile, the other adjacent group of rectangular blocks extrude the springs to be stressed and compressed, and shaking generated during jolting is buffered through the springs.

Description

Technical Field

[0001] The invention belongs to the technical field of probability calculation demonstration, and in particular relates to a probability calculation demonstration device used for mathematics education. Background Art

[0002] In traditional mathematics teaching, the concept of probability is relatively abstract. Simple theoretical explanations are often difficult for students to truly understand and grasp the essence and practical application of probability due to the lack of intuition. Therefore, it is necessary to use demonstration equipment to transform abstract probability problems into specific and visual experimental scenarios to improve students' learning interest and understanding. Demonstration equipment for probability calculations in mathematics education is designed to help students better understand and master the concept of probability in an intuitive and interactive way. Such equipment usually combines mechanical structures and electronic technologies to provide a variety of demonstration methods to enhance students' learning experience.

[0003] Firstly, during the use of the probability calculation demonstration equipment for mathematics education, the equipment needs to be moved back and forth according to different environments or occasions, but the existing probability calculation demonstration equipment for mathematics education is not equipped with a device to buffer and reduce shock during the movement. Most of the existing equipment only uses springs for buffering, but the stability of spring buffering is low, which may cause the equipment to shake and become unstable, thereby affecting the normal operation and use of the equipment, and may also cause damage to the internal components of the equipment. In addition, the existing probability calculation demonstration equipment for mathematics education does not have the function of height adjustment. When demonstrating in the classroom, students sitting in the back may not be able to see the specific demonstration process, resulting in certain limitations of the equipment.

[0004] In summary, a demonstration device for probability calculation for mathematics education is proposed. Summary of the invention

[0005] In order to solve the problems raised in the above-mentioned background technology, the present invention provides a demonstration device for probability calculation for mathematics education, which solves the problem that most existing devices use springs for buffering, but the stability of spring buffering is low, which may cause the device to shake and become unstable, thereby affecting the normal operation and use of the device, and may also cause damage to the internal components of the device. In addition, the existing demonstration device for probability calculation for mathematics education does not have a height adjustment function. When demonstrating in the classroom, students sitting in the back may not be able to see the specific demonstration process, resulting in certain limitations of the device.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A demonstration device for probability calculation used in mathematics education, the demonstration device for probability calculation comprising: a bottom plate and a driving component, a supporting plate, a buffer component and a fixing plate arranged on the bottom plate in sequence,

[0008] The buffer component comprises:

[0009] A third long block mounted on the top surface of the support plate;

[0010] First protrusions fixedly arranged on both sides of the lower end of the third long block;

[0011] a rectangular block mounted on top of the third long block;

[0012] a third connecting rod sleeved inside the rectangular block;

[0013] an elastic component disposed outside the third connecting rod;

[0014] a fourth connecting rod fixedly connected to an outer side of the third connecting rod;

[0015] A fifth connecting rod installed around the top surface of the support plate;

[0016] Second protrusions mounted on both sides of the outside of the rectangular block;

[0017] a second angle ear mounted on the exterior of the second projection;

[0018] A third connecting plate and a fourth connecting plate respectively hinged to the inside of the second corner ear;

[0019] A third triangular ear hinged to the outer top end of the third connecting plate;

[0020] A fourth corner ear is hingedly connected to the outer bottom end of the fourth connecting plate.

[0021] Preferably, the driving assembly also includes a second connecting block and a fourth connecting block respectively installed on the bottom surface of the support plate, the second connecting block is hinged with a first connecting plate inside, the first connecting plate is connected to the first connecting block at one end outside, and a first long block is installed at the bottom of the first connecting block.

[0022] Preferably, the fourth connecting block is hinged with a second connecting plate inside, the second connecting plate is hinged with a third connecting block at one end outside, a second long block is fixedly installed at the bottom of the third connecting block, and the first connecting rod and the second connecting rod are respectively sleeved on both ends inside the second long block.

[0023] Preferably, a threaded rod is sleeved at the inner middle position of the first long block, first angle ears are fixedly mounted on both outer ends of the first connecting rod, and one outer end of the threaded rod is mounted on the output shaft of the motor.

[0024] Preferably, the outside of the threaded rod is provided with positive and negative threads, and the first long block and the second long block move in opposite directions through the threaded rod, the first connecting rod and the second connecting rod.

[0025] Preferably, a T-shaped groove is formed on the top surface of the support plate, and the third long block and the first protrusion slide horizontally in the T-shaped groove.

[0026] Preferably, two ends of the spring are in contact with the outside of the rectangular block, and two ends of the outside of the third connecting rod are provided with round blocks.

[0027] Preferably, there are multiple fifth connecting rods, and the multiple fifth connecting rods are equidistantly disposed around the top surface of the support plate.

[0028] Preferably, a pulley is installed at the bottom of the base plate, and the pulleys are equidistantly arranged around the top of the base plate, and a handle is installed on one side of the top surface of the fixed plate.

[0029] Preferably, there are three groups of the first corner ears, and the three groups of first corner ears are respectively installed on the outer ends of the first connecting rod, the threaded rod, and the second connecting rod.

[0030] The probability calculation demonstration device for mathematics education according to the embodiment of the present invention has at least one of the following advantages:

[0031] The present invention pushes the whole device through the handle, and pushes the device to the designated position through the cooperation of multiple groups of pulleys. The device will be bumpy during the movement. The fixed plate moves down along the outside of the fifth connecting rod, and at the same time, the fixed plate squeezes the third angle ear. The third angle ear drives the third connecting plate, so that the third connecting plate moves along the inside of the second angle ear. At the same time, the third connecting plate drives the fourth connecting plate, so that the fourth connecting plate changes along the inside of the fourth angle ear. The second protrusion is pushed by the third connecting plate and the fourth connecting plate, and the second protrusion drives the rectangular block and the third long block to move. The first protrusion is driven by the third long block to slide horizontally in the T-shaped groove opened on the top surface of the support plate, so that the rectangular block moves along the outside of the third connecting rod and squeezes the spring to be compressed. At the same time, another group of adjacent rectangular blocks squeezes the spring to be compressed. The spring buffers the shaking caused by the bump. In this process, the rectangular block, the spring, the third long block, the first protrusion, the third connecting plate, and the fourth connecting plate are used in cooperation, so that the stability of the device is improved and the damage of the components inside the device is reduced.

[0032] The present invention starts a motor to drive the threaded rod to rotate, so that the first long block and the second long block move along the positive and negative threads on the outside of the motor, and at the same time, the second long block and the first long block move toward the middle position of the bottom plate along the outside of the first connecting rod and the second connecting rod. The first long block drives the first connecting plate, and the second long block drives the second connecting plate, so that the overall height of the support plate is raised, and at the same time, the buffer assembly, the fixing plate, and the demonstration assembly installed on the top are raised through the support plate, so that it is convenient for students sitting in the back of the classroom to watch the demonstration process. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] These and / or other aspects and advantages of the present invention will become apparent and readily understood from the following description of the preferred embodiments in conjunction with the accompanying drawings, in which:

[0034] Figure 1 A schematic diagram of the overall structure of a probability calculation demonstration device for mathematics education according to the present invention;

[0035] Figure 2 for Figure 1 A schematic cross-sectional structure diagram of a drive assembly;

[0036] Figure 3 for Figure 1 A schematic diagram of the combined structure of the drive components;

[0037] Figure 4 for Figure 1 A schematic cross-sectional structure diagram of a buffer component;

[0038] Figure 5 for Figure 1 A schematic diagram of the combined structure of the buffer component;

[0039] Figure 6 for Figure 1 Schematic diagram of the combined exploded structure of the buffer components.

[0040] In the figure: 1 bottom plate; 2 driving assembly; 201 first angle ear; 202 first long block; 203 first connecting block; 204 first connecting plate; 205 second connecting block; 206 first connecting rod; 207 second long block; 208

[0041] The third connecting block; 209 the second connecting plate; 210 the fourth connecting block; 211 the threaded rod; 212 the motor; 213 the second connecting rod; 3 the supporting plate; 4 the buffer assembly; 401 the third long block; 402 the first protrusion; 403 the rectangular block; 404 the third connecting rod; 405 the spring; 406 the fourth connecting rod; 407 the fifth connecting rod; 408 the second protrusion; 409 the second corner ear; 410 the third connecting plate; 411 the third corner ear; 412 the fourth connecting plate; 413 the fourth corner ear; 5 the fixing plate; 6 the demonstration assembly; 601 the observation box; 602 the input port; 603 the storage cylinder; 604 the agitator; 605 the ball outlet; 606 the recovery box; 607 the servo motor. DETAILED DESCRIPTION

[0042] The technical solution of the present invention is further specifically described below by examples and in conjunction with the accompanying drawings. In the specification, the same or similar reference numerals indicate the same or similar components. The following description of the embodiments of the present invention with reference to the accompanying drawings is intended to explain the overall inventive concept of the present invention and should not be construed as a limitation of the present invention.

[0043] See also Figure 1 The embodiment of the present invention provides a probability calculation demonstration device for mathematics education. The probability calculation demonstration device includes a bottom plate 1, a driving component 2 mounted on the top surface of the bottom plate 1, a support plate 3 mounted on the top of the driving component 2, a buffer component 4 mounted on the top surface of the support plate 3, a fixing plate 5 arranged on the top of the buffer component 4, and a demonstration component 6 mounted on the top surface of the fixing plate 5.

[0044] Specifically, see Figure 2 and Figure 3 The driving assembly 2 includes a second connecting block 205 and a fourth connecting block 210 respectively installed on the bottom surface of the support plate 3, the interior of the second connecting block 205 is hinged with the first connecting plate 204, the outer end of the first connecting plate 204 is connected to the first connecting block 203, and the bottom of the first connecting block 203 is installed with the first long block 202.

[0045] The fourth connecting block 210 is hinged with the second connecting plate 209 inside, the third connecting block 208 is hinged with one end outside the second connecting plate 209, the second long block 207 is fixedly installed at the bottom of the third connecting block 208, and the first connecting rod 206 and the second connecting rod 213 are respectively sleeved on the two ends inside the second long block 207.

[0046] A threaded rod 211 is sleeved at the middle position of the first long block 202, first angle ears 201 are fixedly mounted on both ends of the outside of the first connecting rod 206, and one end of the threaded rod 211 is mounted on the output shaft of the motor 212;

[0047] The outside of the threaded rod 211 is provided with positive and negative threads, and the first long block 202 and the second long block 207 move in opposite directions through the threaded rod 211, the first connecting rod 206 and the second connecting rod 213; there are three groups of first angle ears 201, and the three groups of first angle ears 201 are respectively installed on the outer ends of the first connecting rod 206, the threaded rod 211, and the second connecting rod 213.

[0048] The above scheme is adopted: by starting the motor 212 to drive the first long block 202 and the second long block 207, the first long block 202 and the second long block 207 are moved along the positive and negative threads set on the outside of the first connecting rod 206, the second connecting rod 213 and the outside of the threaded rod 211, and the first long block 202 and the second long block 207 are brought close to each other, driving the first connecting plate 204 and the second connecting plate 209 to push the support plate 3 to be lifted as a whole, and driving the buffer assembly 4, the fixed plate 5, and the demonstration assembly 6 to be lifted through the support plate 3, so that students sitting at the back of the classroom can better watch the demonstration process.

[0049] See also Figures 4 to 6 The demonstration component 6 includes an observation box 601 installed on the top surface of the fixed plate 5, a storage cylinder 603 is arranged inside the observation box 601, an agitator 604 is installed inside the storage cylinder 603, a ball outlet 605 is opened at the lower end of the outside of the storage cylinder 603, a servo motor 607 is installed at one end of the outside of the agitator 604, and an inlet 602 is fixedly connected to the upper end of the outside of the storage cylinder 603.

[0050] The buffer assembly 4 includes a third long block 401 installed on the top surface of the support plate 3, and the first protrusions 402 are fixedly installed on both sides of the lower end of the third long block 401, and a rectangular block 403 is installed on the top of the third long block 401. The interior of the rectangular block 403 is sleeved with a third connecting rod 404, and the outside of the third connecting rod 404 is provided with a spring 405. The outer side of the third connecting rod 404 is fixedly connected to a fourth connecting rod 406, and a fifth connecting rod 407 is installed around the top surface of the support plate 3. Second protrusions 408 are fixedly installed on both sides of the exterior of the rectangular block 403, and a second corner ear 409 is installed on the outside of the second protrusion 408. The interior of the second corner ear 409 is respectively hinged with a third connecting plate 410 and a fourth connecting plate 412, the outer top of the third connecting plate 410 is hinged with a third corner ear 411, and the outer bottom of the fourth connecting plate 412 is hinged with a fourth corner ear 413.

[0051] The above scheme is adopted: by starting the motor 212 to drive the threaded rod 211 to rotate, the first long block 202 and the second long block 207 are moved along the positive and negative threads on the outside of the motor 212, and at the same time, the second long block 207 and the first long block 202 are moved closer to the middle position of the bottom plate 1 along the outside of the first connecting rod 206 and the second connecting rod 213, and the first long block 202 drives the first connecting plate 204, and the second long block 207 drives the second connecting plate 209, so that the overall height of the support plate 3 is raised, and at the same time, the buffer component 4, the fixed plate 5, and the demonstration component 6 installed on the top are raised through the support plate 3, so that it is convenient for students sitting in the back position in the classroom to watch the demonstration. When the equipment needs to be moved, by holding the handle on one side of the outside of the fixed plate 5, the equipment is pushed as a whole through the handle, and the equipment is pushed to the specified position through the cooperation of multiple sets of pulleys. The equipment may be bumpy during the movement. At this time, the fixing plate 5 moves downward along the outside of the fifth connecting rod 407. At the same time, the fixing plate 5 squeezes the third corner ear 411, and drives the third connecting plate 410 through the third corner ear 411, so that the third connecting plate 410 moves along the inside of the second corner ear 409. At the same time, the third connecting plate 410 drives the fourth connecting plate 412, so that the fourth connecting plate 412 changes along the inside of the fourth corner ear 413. The second protrusion 408 is pushed by the third connecting plate 410 and the fourth connecting plate 412, and the second protrusion 408 drives the rectangular block 403 and the third long block 401 to move. The first protrusion 402 is driven by the third long block 401 to slide horizontally in the T-shaped groove opened on the top surface of the support plate 3, so that the rectangular block 403 moves along the outside of the third connecting rod 404 and squeezes the spring 405 to be compressed.

[0052] like Figure 4 As shown, a T-shaped groove is provided on the top surface of the support plate 3, and the third long block 401 and the first protrusion 402 slide horizontally in the T-shaped groove;

[0053] Both ends of the spring 405 are in contact with the outside of the rectangular block 403, and both ends of the outside of the third connecting rod 404 are provided with round blocks;

[0054] There are multiple fifth connecting rods 407, and the multiple fifth connecting rods 407 are equidistantly arranged around the top surface of the support plate 3; a pulley is installed at the bottom of the base plate 1, and the pulleys are equidistantly arranged around the top of the base plate 1, and a handle is installed on one side of the top surface of the fixed plate 5.

[0055] The buffer component 4 moves downward along the outside of the plurality of fifth connecting rods 407 and pushes the third corner ear 411, and the third corner ear 411 drives the third connecting plate 410 to move along the inside of the second corner ear 409, and at the same time drives the fourth connecting plate 412 to move along the inside of the fourth corner ear 413, and the second protrusion 408 is pushed by the cooperation of the third connecting plate 410, the fourth corner ear 413 and the second corner ear 409, so that the second protrusion 408 drives the rectangular block 403 and the third long block 401 to slide horizontally along the inside of the T-slot, and the rectangular block 403 squeezes the spring 405 to be compressed, and the spring 405 is compressed to buffer the shaking caused by the bump, thereby reducing the damage to the internal components of the equipment.

[0056] The working principle and usage process of the probability calculation demonstration device for mathematics education will be explained in detail below:

[0057] First, demonstration balls of different colors are placed from the input port 602 into the storage cylinder 603 installed inside the observation box 601, and then the servo motor 607 is turned on to drive the stirrer 604 to rotate, so that the demonstration balls inside the storage cylinder 603 are fully stirred, ensuring the uniformity and randomness of the mixing of demonstration balls of different colors, so that the demonstration balls of different colors can fall out along the ball outlet 605, and the colors of the demonstration balls can be recorded, and then the operation can be repeated. When the height of the equipment needs to be adjusted, the motor 212 is started to drive the threaded rod 211 to rotate , so that the first long block 202 and the second long block 207 move along the positive and negative threads on the outside of the motor 212, and at the same time, the second long block 207 and the first long block 202 move toward the middle position of the bottom plate 1 along the outside of the first connecting rod 206 and the second connecting rod 213, and the first long block 202 drives the first connecting plate 204, and the second long block 207 drives the second connecting plate 209, so that the overall height of the support plate 3 is raised, and at the same time, the buffer component 4, the fixing plate 5, and the demonstration component 6 installed on the top are raised through the support plate 3, so that it is convenient for students sitting in the back of the classroom to watch the demonstration process.

[0058] When the equipment needs to be moved, the handle on one side of the outside of the fixing plate 5 is held, and the whole equipment is pushed through the handle, and the equipment is pushed to the specified position through the cooperation of multiple sets of pulleys. The equipment will be bumpy during the movement. At this time, the fixing plate 5 moves down along the outside of the fifth connecting rod 407, and at the same time, the fixing plate 5 squeezes the third corner ear 411, and drives the third connecting plate 410 through the third corner ear 411, so that the third connecting plate 410 moves along the inside of the second corner ear 409, and at the same time, the third connecting plate 410 drives the fourth connecting plate 412, so that the third connecting plate 410 The four connecting plates 412 change along the inside of the fourth corner ear 413, and the second protrusion 408 is pushed by the third connecting plate 410 and the fourth connecting plate 412, and the second protrusion 408 drives the rectangular block 403 and the third long block 401 to move, and the first protrusion 402 is driven by the third long block 401 to slide horizontally along the T-shaped groove opened on the top surface of the support plate 3, so that the rectangular block 403 moves along the outside of the third connecting rod 404 and squeezes the spring 405 to be compressed, and the shaking caused by the bumps can be buffered by the spring 405.

[0059] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0060] Although some embodiments of the present general inventive concept have been shown and described, it will be appreciated by those skilled in the art that changes may be made to these embodiments without departing from the principles and spirit of the present general inventive concept, the scope of which is defined by the claims and their equivalents.

Claims

1. A demonstration device for probability calculation for mathematics education, the demonstration device for probability calculation comprising: A base plate (1) and a driving assembly (2), a supporting plate (3), a buffer assembly (4) and a fixing plate (5) which are sequentially arranged on the base plate (1). The buffer component (4) comprises: A third long block (401) mounted on the top surface of the support plate (3); First protrusions (402) fixedly arranged on both sides of the lower end of the third long block (401); A rectangular block (403) mounted on the top of the third long block (401); a third connecting rod (404) sleeved inside the rectangular block (403); an elastic component (405) arranged outside the third connecting rod (404); a fourth connecting rod (406) fixedly connected to an outer side of the third connecting rod (404); A fifth connecting rod (407) installed around the top surface of the support plate (3); Second protrusions (408) mounted on both sides of the outside of the rectangular block (403); A second angle ear (409) mounted on the outside of the second protrusion (408); A third connecting plate (410) and a fourth connecting plate (412) respectively hinged inside the second corner ear (409); A third triangular ear (411) hingedly connected to the outer top end of the third connecting plate (410); A fourth corner ear (413) is hingedly connected to the outer bottom end of the fourth connecting plate (412).

2. The probability calculation demonstration device according to claim 1, characterized in that: The fixing plate (5) moves downward along the outside of the fifth connecting rod (407), and at the same time, the fixing plate (5) squeezes the third corner ear (411), and drives the third connecting plate (410) through the third corner ear (411), so that the third connecting plate (410) moves along the inside of the second corner ear (409), and at the same time, the third connecting plate (410) drives the fourth connecting plate (412), so that the fourth connecting plate (412) changes along the inside of the fourth corner ear (413), and the second protrusion (408) is pushed by the third connecting plate (410) and the fourth connecting plate (412), and the second protrusion (408) drives the rectangular block (403) and the third long block (401) to move, and the first protrusion (402) is driven by the third long block (401) to slide horizontally along the top surface of the support plate (3), so that the rectangular block (403) moves along the outside of the third connecting rod 404 and squeezes the elastic component (405) to be compressed.

3. The probability calculation demonstration device according to claim 2, characterized in that: The top surface of the support plate (3) is provided with a T-shaped groove, and the first protrusion (402) is driven by the third long block (401) to slide horizontally along the T-shaped groove provided on the top surface of the support plate (3), so that the rectangular block (403) moves along the outside of the third connecting rod (404) and compresses the spring (405) to be compressed.

4. The probability calculation demonstration device according to claim 1, characterized in that: Both ends of the spring (405) are in contact with the outside of the rectangular block (403), and both ends of the outside of the third connecting rod (404) are provided with round blocks.

5. The probability calculation demonstration device according to claim 1, characterized in that: There are multiple fifth connecting rods (407), and the multiple fifth connecting rods (407) are equidistantly arranged around the top surface of the support plate (3).

6. The probability calculation demonstration device according to any one of claims 1 to 5, characterized in that: The demonstration component (6) further comprises: An observation box (601) mounted on the top surface of the fixing plate (5), A storage cylinder (603) is arranged inside the observation box (601), an agitator (604) installed inside the storage cylinder (603), A ball outlet (605) is provided at the lower end of the storage tube (603). A servo motor (607) mounted on an outer end of the stirrer (604), A feed port (602) is fixedly connected to the outer upper end of the storage cylinder (603).

7. The probability calculation demonstration device according to claim 1, characterized in that: The driving assembly (2) further comprises: A second connecting block (205) and a fourth connecting block (210) respectively mounted on the bottom surface of the support plate (3), and a first connecting plate (204) hingedly connected to the inside of the second connecting block (205). a first connection block (203) connected to an outer end of the first connection plate (204), A first long block (202) is mounted on the bottom of the first connecting block (203).

8. The probability calculation demonstration device according to claim 7, characterized in that: The fourth connecting block (210) is hingedly connected to a second connecting plate (209) at one end outside the second connecting plate (209), a second long block (207) is fixedly mounted at the bottom of the third connecting block (208), and the first connecting rod (206) and the second connecting rod (213) are respectively sleeved at two ends inside the second long block (207).

9. The probability calculation demonstration device according to claim 8, characterized in that: A threaded rod (211) is sleeved at the middle position inside the first long block (202), first angle ears (201) are fixedly mounted at both ends of the outside of the first connecting rod (206), and one end of the outside of the threaded rod (211) is mounted on the output shaft of the motor (212).

10. The probability calculation demonstration device according to claim 9, characterized in that: The threaded rod (211) is provided with positive and negative threads on its exterior, and the first long block (202) and the second long block (207) move in opposite directions via the threaded rod (211), the first connecting rod (206) and the second connecting rod (213); A pulley is installed at the bottom of the base plate (1), and the pulleys are equidistantly arranged around the top of the base plate (1); There are three groups of the first corner ears (201), and the three groups of the first corner ears (201) are respectively installed on the outer ends of the first connecting rod (206), the threaded rod (211), and the second connecting rod (213).

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