Probability statistics device

Abstract

The utility model discloses a probability statistics device which comprises a device shell, a fixed hopper is fixedly connected to the inner wall of the device shell, and a throwing mechanism is arranged on the fixed hopper. According to the probability statistics device provided by the utility model, the small balls used for probability statistics are put into the fixed hopper, then the handle is rotated to drive the rolling ball to rotate, the small balls in the fixed hopper fall into the ball groove firstly, and then the small balls in the ball groove fall into the device shell along with the rotation of the rolling ball, so that the probability statistics is realized in the process. The ball column can be tightly attached to the outer portion of the limiting disc under the action of the elastic force of the first spring, the ball column can be clamped in the clamping groove along with rotation of the rotating shaft, then the force for rotating the handle needs to be increased so that the ball column can be squeezed into the sleeve shell, the ball column can leave the clamping groove, and interval type hindering can be formed on rotation of the handle; the situation of accidental collision caused by short interval time of the falling small balls is reduced, so that the accuracy of final probability statistics is ensured.

Description

Technical Field

[0001] This utility model relates to the field of applied mathematics technology, and in particular to a probability and statistics device. Background Technology

[0002] Applied mathematics is a discipline that uses mathematical methods to solve practical problems. It has applications in fields such as economics and finance, engineering and technology. The applied mathematics major cultivates senior professionals who have mastered the basic theories and methods of mathematical science, have the ability to use mathematical knowledge and computers to solve practical problems, receive preliminary training in scientific research, and can engage in research and teaching in science and technology, education and economic sectors, or engage in practical application, development research and management in production, operation and management departments.

[0003] For example, Chinese Utility Model Patent (CN219574988U) discloses a probability and statistics device applied to mathematics, which describes: "During a teaching demonstration, a luminous ball enters the falling area through the first through-hole of the first partition in the throwing area. It is then diverted by the baffle in the falling area and finally passes through the second through-hole of the second partition, falling into the corresponding transparent statistical bin. Because the luminous ball can emit light, the height of the luminous balls piled up in each transparent statistical bin is clearly visible, and students far from the device can also see the statistical results. The height of the luminous ball pile can be accurately measured through height markings, and even if the heights are similar, the difference can be determined by the height value, resulting in better teaching effectiveness. Therefore, the probability and statistics device applied to mathematics provided by this utility model embodiment has the advantages of clear display and good teaching effect." It also describes the technical problem: "In probability courses, probability and statistics devices are used, but the existing probability and statistics devices have unclear display effects, making it difficult for students far from the device to see the statistical results. If adjacent bar statistical results are similar, with similar heights and indistinct differences, it affects the teaching effect."

[0004] In summary, the existing technology uses a plug plate to control the switch of the first through hole, thereby controlling the falling of the ball. However, this method has the following technical problems: after the plug plate is pulled, multiple balls may fall at the same time. The balls falling at the same time may collide with each other during the fall, which may cause the trajectory of the balls to deviate, causing the balls to deviate from the position they should fall into, thus affecting the accuracy of probability statistics. Therefore, this application proposes a probability statistics device to provide a new technical solution to solve the technical problems mentioned in the above patent. Utility Model Content

[0005] Based on this, it is necessary to provide a probability statistics device to address the aforementioned technical problems. The device involves placing a small ball used for probability statistics into a fixed container, then rotating a handle to drive a rotating shaft. This rotating shaft, in turn, causes the rolling ball to rotate. The ball inside the fixed container first falls into a ball groove. As the rolling ball rotates, the ball inside the groove falls into the device's outer casing. During this process, the ball is pressed tightly against the outside of a limiting disc by the force of a first spring. Furthermore, as the rotating shaft rotates, the ball gets stuck in a slot. Increased force is needed to rotate the handle to force the ball into the casing, causing it to leave the slot. This creates intermittent resistance to the rotation of the handle. The balls fall from the fixed container into the device's outer casing at certain intervals. This intermittent resistance reduces the possibility of accidental collisions caused by short intervals between falling balls, thus ensuring the accuracy of the final probability statistics.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A probability and statistics device for use in applied mathematics teaching.

[0008] The probability statistics device specifically includes:

[0009] The device housing has a fixed hopper fixedly connected to its inner wall, a dispensing mechanism on the fixed hopper, a stirring mechanism on the top of the device housing, a first guide plate fixedly connected to the inner wall of the device housing directly below the fixed hopper, first baffles fixedly connected to the inner wall of the device housing on both the left and right sides of the first guide plate, two second guide plates fixedly connected to the inner wall of the device housing, multiple second baffles fixedly connected to the inner wall of the device housing, and multiple collection frames slidably connected inside the device housing.

[0010] The dispensing mechanism includes a handle, a rotating shaft, a separating component, and a limiting component. The rotating shaft is rotatably connected to the inner wall of the fixed hopper, and a handle is fixedly connected to one end of the rotating shaft located outside the fixed hopper.

[0011] In a preferred embodiment of the probability statistics device provided by this utility model, the separating component includes a rolling ball, and the rolling ball is fixedly connected to the outer wall of the rotating shaft and located inside the fixed bucket. The rolling ball has multiple ball grooves on its outer side.

[0012] In a preferred embodiment of the probability and statistics device provided by this utility model, the limiting component includes a fixed outer shell, the outer wall of the fixed bucket is fixedly connected to the fixed outer shell, the rotating shaft is rotatably connected to the inner wall of the fixed outer shell, the outer wall of the rotating shaft is fixedly connected to a limiting disk, the outer side of the limiting disk is provided with a plurality of slots, the inner wall of the fixed outer shell is fixedly connected to a sleeve, the inner wall of the sleeve is slidably connected to a ball column adapted to the slots, one end of the ball column located inside the sleeve is fixedly connected to a first spring, and the end of the first spring away from the ball column is fixedly connected to the inner wall of the sleeve.

[0013] In a preferred embodiment of the probability statistics device provided by this utility model, the stirring mechanism includes an air pump, a cover, an air blowing component, and a fixing component. The air pump is fixedly installed on the top of the device housing, and the cover is rotatably connected to the top of the fixed hopper.

[0014] In a preferred embodiment of the probability statistics device provided by this utility model, the air blowing assembly includes a hollow ring, the top of the device housing is fixedly connected to the hollow ring, the air outlet pipe of the air pump is fixedly connected to the inner wall of the hollow ring, the top of the hollow ring is fixedly connected to multiple fixed pipes, the ends of the multiple fixed pipes away from the hollow ring are all fixedly connected to the inner wall of the fixed hopper, and the cover is provided with multiple air outlet holes.

[0015] In a preferred embodiment of the probability statistics device provided by this utility model, the fixing component includes a plug, the plug is slidably connected to the inner wall of the cover, the plug is movably inserted into the fixing bucket, the fixing ring is fixedly connected to the outer wall of the plug, the fixing ring is slidably connected to the inner wall of the cover, and a second spring is sleeved on the outside of the plug, the two ends of the second spring being fixedly connected to the inner wall of the cover and the outer wall of the fixing ring, respectively.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The probability statistics device provided by this utility model involves placing a small ball used for probability statistics into a fixed container, then rotating the handle to drive the rotating shaft to rotate. The rotating shaft, in turn, drives the rolling ball to rotate. The small ball inside the fixed container first falls into the ball groove, and then, as the rolling ball rotates, the small ball inside the ball groove falls into the outer shell of the device. During this process, the ball column will be pressed tightly against the outside of the limiting plate under the action of the first spring force, and as the rotating shaft rotates, the ball column will be stuck in the slot. Then, it is necessary to increase the force of rotating the handle to squeeze the ball column into the shell, so that the ball column leaves the slot, forming an intermittent obstruction to the rotation of the handle. There is a certain interval between the small balls falling from the fixed container into the outer shell of the device, and due to the intermittent obstruction, the accidental collision caused by the short interval between falling balls is reduced, so as to ensure the accuracy of the final probability statistics.

[0018] The probability statistics device provided by this utility model allows the insertion post to be pulled and the cover to be placed on top of the fixed hopper. After the insertion post is released, the second spring force causes the insertion post to be inserted into the fixed hopper, ensuring the cover is stably placed on the fixed hopper. This reduces the chance of small balls flying out of the fixed hopper and improves the stability of the device. Subsequently, the air pump is controlled to deliver air into the hollow ring and then into the fixed hopper through the fixed tube, thereby blowing air into the small balls inside the fixed hopper. This causes the small balls inside the fixed hopper to tumble in the air, achieving a stirring effect and ensuring that the small balls are evenly distributed inside the fixed hopper, thus guaranteeing the accuracy of the final probability statistics. Attached Figure Description

[0019] To more clearly illustrate the solutions in this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 A schematic diagram of the overall structure of the probability and statistics device provided by this utility model;

[0021] Figure 2 A schematic diagram of the internal structure of the probability and statistics device provided by this utility model;

[0022] Figure 3 A schematic diagram of the internal structure of the fixed bucket of the probability statistics device provided by this utility model;

[0023] Figure 4 The probability and statistics device provided by this utility model Figure 3 Enlarged view of A in the middle;

[0024] Figure 5 A schematic diagram of the internal structure of the lid of the probability statistics device provided by this utility model;

[0025] Figure 6 The probability and statistics device provided by this utility model Figure 5 A magnified view of B in the middle.

[0026] The markings in the diagram are explained as follows:

[0027] 1. Device outer casing; 2. Fixed hopper; 3. Dispensing mechanism; 4. Agitating mechanism; 5. First guide plate; 6. First baffle; 7. Second guide plate; 8. Second baffle; 9. Collection frame; 10. Handle; 11. Rotating shaft; 12. Rolling ball; 13. Ball groove; 14. Fixed outer casing; 15. Limiting disc; 16. Slot; 17. Sleeve; 18. Ball column; 19. First spring; 20. Air pump; 21. Hollow ring; 22. Fixed tube; 23. Cover; 24. Air outlet; 25. Insert column; 26. Fixed ring; 27. Second spring. Detailed Implementation

[0028] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0029] As described in the background art, after the insert plate is pulled, multiple balls in the device may fall at the same time. The balls falling at the same time may collide with each other during the fall, which may cause the trajectory of the balls to deviate, causing the balls to deviate from the position they should fall into, thus affecting the accuracy of probability statistics.

[0030] To solve this technical problem, this utility model provides a probability and statistics device that can be applied to applied mathematics teaching.

[0031] For details, please refer to Figures 1-2 The probability and statistics device specifically includes:

[0032] The device consists of a housing 1, a fixed hopper 2 fixedly connected to the inner wall of the housing 1, a dispensing mechanism 3 on the fixed hopper 2, a stirring mechanism 4 on the top of the housing 1, a first guide plate 5 fixedly connected to the inner wall of the housing 1 directly below the fixed hopper 2, first baffles 6 fixedly connected to the inner wall of the housing 1 on both the left and right sides of the first guide plate 5, two second guide plates 7 fixedly connected to the inner wall of the housing 1, multiple second baffles 8 fixedly connected to the inner wall of the housing 1, and multiple collection frames 9 slidably connected inside the housing 1.

[0033] The dispensing mechanism 3 includes a handle 10, a rotating shaft 11, a dividing component, and a limiting component. The rotating shaft 11 is rotatably connected to the inner wall of the fixed hopper 2, and the handle 10 is fixedly connected to one end of the rotating shaft 11 located outside the fixed hopper 2.

[0034] The probability statistics device provided by this utility model involves placing a small ball used for probability statistics into a fixed container 2, then rotating the handle 10 to drive the rotating shaft 11 to rotate. The rotating shaft 11 will then drive the rolling ball 12 to rotate. The small ball inside the fixed container 2 will first fall into the ball groove 13. Then, as the rolling ball 12 rotates, the small ball inside the ball groove 13 will fall into the device housing 1. During this process, the ball column 18 will be pressed tightly against the outside of the limiting disc 15 under the elastic force of the first spring 19. As the rotating shaft 11 rotates, the ball column 18 will be stuck in the slot 16. Then, the force of rotating the handle 10 needs to be increased to squeeze the ball column 18 into the housing 17, so that the ball column 18 leaves the slot 16, forming an intermittent obstruction to the rotation of the handle 10. There is a certain interval between the small balls falling from the fixed container 2 into the device housing 1. Due to the intermittent obstruction, the situation of accidental collision caused by the short interval between falling balls is reduced, so as to ensure the accuracy of the final probability statistics.

[0035] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0036] Example 1:

[0037] Please refer to Figures 3-4 A probability and statistics device, comprising:

[0038] The separating component includes a ball 12, which is fixedly connected to the outer wall of the rotating shaft 11 and located inside the fixed bucket 2. Multiple ball grooves 13 are opened on the outside of the ball 12. The small balls used for probability statistics can be completely placed in the ball grooves 13. As the ball 12 rotates, the small balls in the ball grooves 13 move from the top to the bottom and fall into the outer shell 1 of the device.

[0039] The limiting component includes a fixed outer shell 14, which is fixedly connected to the outer wall of the fixed bucket 2. A rotating shaft 11 is rotatably connected to the inner wall of the fixed outer shell 14. A limiting disk 15 is fixedly connected to the outer wall of the rotating shaft 11. Multiple slots 16 are provided on the outside of the limiting disk 15. A sleeve 17 is fixedly connected to the inner wall of the fixed outer shell 14. A ball post 18 that is adapted to the slots 16 is slidably connected to the inner wall of the sleeve 17. A first spring 19 is fixedly connected to one end of the ball post 18 inside the sleeve 17. The end of the first spring 19 away from the ball post 18 is fixedly connected to the inner wall of the sleeve 17. The slots 16 are provided with rounded corners to facilitate the ball post 18 moving out of the slots 16.

[0040] Through the above structural design, by placing the small ball used for probability statistics into the fixed bucket 2, and then rotating the handle 10 to drive the rotating shaft 11 to rotate, the rotating shaft 11 will drive the rolling ball 12 to rotate. The small ball inside the fixed bucket 2 will first fall into the ball groove 13. Then, as the rolling ball 12 rotates, the small ball inside the ball groove 13 will fall into the outer shell 1 of the device. During this process, the rotating shaft 11 will rotate along with the limiting disk 15. The ball column 18 will be pressed tightly against the outside of the limiting disk 15 under the action of the elastic force of the first spring 19. As the rotating shaft 11 rotates, the ball column 18 will be stuck in the slot 16. Then, the force of rotating the handle 10 needs to be increased to squeeze the ball column 18 into the shell 17, so that the first spring 19 will deform and the ball column 18 will leave the slot 16, forming an intermittent obstruction to the rotation of the handle 10.

[0041] Example 2:

[0042] The probability statistics device provided in Example 1 is further optimized, specifically, as follows: Figures 5-6 As shown, the stirring mechanism 4 includes an air pump 20, a cover 23, an air blowing assembly, and a fixing assembly. The air pump 20 is fixedly installed on the top of the device housing 1, and the cover 23 is rotatably connected to the top of the fixed bucket 2. The cover 23 can prevent the small ball from leaving the top opening of the fixed bucket 2.

[0043] The air blowing assembly includes a hollow ring 21. The hollow ring 21 is fixedly connected to the top of the device housing 1. The air outlet pipe of the air pump 20 is fixedly connected to the inner wall of the hollow ring 21. Multiple fixed pipes 22 are fixedly connected to the top of the hollow ring 21. The ends of the multiple fixed pipes 22 away from the hollow ring 21 are all fixedly connected to the inner wall of the fixed bucket 2. Multiple air outlets 24 are opened on the cover 23. The air pump 20 introduces gas into the hollow ring 21, and then transmits it into the interior of the fixed bucket 2 through the fixed pipes 22. This blows up and tumbles the small balls inside the fixed bucket 2, so as to achieve the effect of uniformly mixing the small balls inside the fixed bucket 2. This is suitable for the probability statistics of small balls of different colors.

[0044] The fixing component includes a post 25, which is slidably connected to the inner wall of the cover 23. The post 25 is movably inserted into the fixing bucket 2 and can be inserted into the fixing bucket 2 to prevent the cover 23 from being accidentally opened. A fixing ring 26 is fixedly connected to the outer wall of the post 25 and is slidably connected to the inner wall of the cover 23. A second spring 27 is sleeved on the outside of the post 25, and the two ends of the second spring 27 are fixedly connected to the inner wall of the cover 23 and the outer wall of the fixing ring 26, respectively.

[0045] Through the above structural design, by pulling the insert 25, the fixing ring 26 can slide inside the cover 23, causing the second spring 27 to deform. After the cover 23 is closed on the top of the fixed hopper 2, the insert 25 can be released. Then, under the action of the elastic force of the second spring 27, the insert 25 is inserted into the fixed hopper 2. Then, the air pump 20 can be controlled to deliver air to the hollow ring 21 and input into the fixed hopper 2 through the fixing tube 22, thereby blowing air into the small balls inside the fixed hopper 2, causing the small balls inside the fixed hopper 2 to suspend and roll, thereby achieving the stirring effect of the small balls and making the small balls inside the fixed hopper 2 evenly distributed.

Claims

1. A probability and statistics device, comprising a device housing (1), characterized in that: A fixed bucket (2) is fixedly connected to the inner wall of the device housing (1). A dispensing mechanism (3) is provided on the fixed bucket (2). A stirring mechanism (4) is provided on the top of the device housing (1). A first guide plate (5) is fixedly connected to the inner wall of the device housing (1) and directly below the fixed bucket (2). A first baffle (6) is fixedly connected to the inner wall of the device housing (1) on both the left and right sides of the first guide plate (5). Two second guide plates (7) are fixedly connected to the inner wall of the device housing (1). Multiple second baffles (8) are fixedly connected to the inner wall of the device housing (1). Multiple collection frames (9) are slidably connected inside the device housing (1). The dispensing mechanism (3) includes a handle (10), a rotating shaft (11), a separating component, and a limiting component. The inner wall of the fixed bucket (2) is rotatably connected to the rotating shaft (11), and the handle (10) is fixedly connected to one end of the rotating shaft (11) located outside the fixed bucket (2).

2. The probability and statistics device according to claim 1, characterized in that, The separating component includes a ball (12), and the ball (12) is fixedly connected to the outer wall of the rotating shaft (11) and inside the fixed bucket (2). The ball (12) has multiple ball grooves (13) on its outer side.

3. The probability and statistics device according to claim 1, characterized in that, The limiting component includes a fixed outer shell (14), the outer wall of the fixed bucket (2) is fixedly connected to the fixed outer shell (14), the rotating shaft (11) is rotatably connected to the inner wall of the fixed outer shell (14), the outer wall of the rotating shaft (11) is fixedly connected to a limiting disk (15), the outer side of the limiting disk (15) is provided with multiple slots (16), the inner wall of the fixed outer shell (14) is fixedly connected to a sleeve (17), the inner wall of the sleeve (17) is slidably connected to a ball column (18) that is adapted to the slot (16), one end of the ball column (18) located inside the sleeve (17) is fixedly connected to a first spring (19), and the end of the first spring (19) away from the ball column (18) is fixedly connected to the inner wall of the sleeve (17).

4. The probability and statistics device according to claim 1, characterized in that, The stirring mechanism (4) includes an air pump (20), a cover (23), an air blowing assembly, and a fixing assembly. The air pump (20) is fixedly installed on the top of the device housing (1), and the cover (23) is rotatably connected to the top of the fixed bucket (2).

5. The probability and statistics device according to claim 4, characterized in that, The air blowing assembly includes a hollow ring (21), the top of the device housing (1) is fixedly connected to the hollow ring (21), the air outlet pipe of the air pump (20) is fixedly connected to the inner wall of the hollow ring (21), the top of the hollow ring (21) is fixedly connected to a plurality of fixed pipes (22), the ends of the plurality of fixed pipes (22) away from the hollow ring (21) are all fixedly connected to the inner wall of the fixed bucket (2), and the cover (23) is provided with a plurality of air outlet holes (24).

6. The probability and statistics device according to claim 4, characterized in that, The fixing component includes a plug (25), the inner wall of the cover (23) is slidably connected to the plug (25), the plug (25) is movably inserted into the fixing bucket (2), the outer wall of the plug (25) is fixedly connected to a fixing ring (26), the fixing ring (26) is slidably connected to the inner wall of the cover (23), and a second spring (27) is sleeved on the outside of the plug (25), the two ends of the second spring (27) are respectively fixedly connected to the inner wall of the cover (23) and the outer wall of the fixing ring (26).

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