Probability statistics device for applied mathematics

Abstract

The utility model relates to the technical field of teaching equipment, in particular to a probability statistics device for applied mathematics, which comprises a shell, a support frame is fixedly mounted at the bottom of the shell, a throwing window is arranged on the upper side of the outer surface of the shell, a protection box is fixedly mounted at the top of the shell, and a partition plate is fixedly mounted at the upper part in the shell. According to the probability statistics device for applied mathematics, the shell, the supporting frame, the putting window, the collecting cylinder, the protection box, the transmission shaft, a first bevel gear, a vertical shaft, a second bevel gear, a first hand wheel, a stabilizing frame, a second hand wheel, a worm gear, a fixing shaft, a baffle, an operation block, a through hole, a worm and a stirring mechanism are used in cooperation; the device is provided with a second hand wheel capable of being operated remotely and a first hand wheel capable of being operated nearby, so that a teacher can randomly use the device according to field conditions when using the device, and when the second hand wheel is used remotely, shielding to the device during operation is reduced.

Description

Technical Field

[0001] This utility model relates to the field of teaching equipment technology, specifically a probability and statistics device for applied mathematics. Background Technology

[0002] The major of Applied Mathematics cultivates senior professionals who have mastered the basic theories and methods of mathematical science, possess the ability to apply mathematical knowledge and use computers to solve practical problems, receive preliminary training in scientific research, and are able to engage in research and teaching work in science and technology, education and economic sectors, or in practical application, development research and management work in production, operation and management departments.

[0003] Chinese Patent CN221125399U discloses a probability and statistics device for applied mathematics. It includes a protective housing, an operating housing, and a stirring structure. The operating housing is connected to the protective housing, and the stirring structure is located inside both the protective housing and the operating housing. By placing a colored ball inside the operating housing and rotating the shaft by hand, a push plate rotates inside the operating housing, thus stirring the colored ball. This ensures comprehensive agitation of the colored ball within the operating housing. The movement of the colored ball can be controlled manually according to the teaching content, increasing interaction between teachers and students. Furthermore, it does not require electricity and necessitates no maintenance.

[0004] Regarding the aforementioned technologies, this device has some shortcomings. In actual use, since the handle is installed on the top of the device, teachers or students will be very close to the device when operating it, which will obstruct the device from a certain direction. This makes it inconvenient for students to view the demonstration effect of the device from various angles, thus reducing the teaching effect. Therefore, it is necessary to provide a probability and statistics device for applied mathematics to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this invention is to provide a probability and statistics device for applied mathematics to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A probability and statistics device for applied mathematics, comprising:

[0008] The shell has a support frame fixedly installed at its bottom, an injection window opened on the upper side of the outer surface of the shell, a protective box fixedly installed at the top of the shell, a partition fixedly installed at the upper part of the interior of the shell, a fixed shaft rotatably installed on the partition, the top end of the fixed shaft penetrating the shell and extending into the interior of the protective box, the bottom end of the fixed shaft extending to the bottom of the partition, a stirring mechanism provided at the bottom end of the fixed shaft, and a stabilizing frame fixedly installed on the upper part of one side of the outer surface of the shell.

[0009] The protective box is rotatably mounted inside, and the stabilizer is rotatably mounted on the drive shaft, with one end of the drive shaft passing through the protective box and extending into the interior of the protective box to be fixedly connected to one end of the worm gear.

[0010] A worm gear is fixedly installed on the top outer wall of the fixed shaft, and the worm gear meshes with the worm. A second handwheel is fixedly installed at the other end of the transmission shaft. Several statistical mechanisms are provided at the bottom of the housing.

[0011] Preferably, the stirring mechanism includes a rotating plate, which is fixedly connected to the bottom end of a fixed shaft. Several connecting rods are equidistantly and uniformly rotatably installed on the bottom of the rotating plate. A push plate is fixedly installed at the bottom end of each connecting rod. An annular toothed plate is fixedly installed at the bottom of the partition plate. The top end of each connecting rod passes through the rotating plate and extends to the top of the rotating plate. A gear is fixedly installed at the top end of each connecting rod, and the gear meshes with the annular toothed plate.

[0012] Preferably, a vertical shaft is rotatably mounted on the top side of the stabilizer near the housing, a second bevel gear is fixedly mounted on the top end of the vertical shaft, a first bevel gear is fixedly mounted on the outer wall of the drive shaft, and the first bevel gear meshes with the second bevel gear, the bottom end of the vertical shaft passes through the stabilizer and extends to below the bottom of the stabilizer, and a first handwheel is fixedly mounted on the bottom end of the vertical shaft.

[0013] Preferably, the statistical mechanism includes several through holes, which are equidistantly and evenly opened at the bottom of the housing. A collecting cylinder is threadedly connected to the bottom opening of each through hole, and a baffle is movably inserted into the top of the collecting cylinder. An operating block is fixedly installed on one side of the baffle.

[0014] Preferably, the number of push plates is at least four.

[0015] Preferably, both the shell and the collecting cylinder are made of transparent material.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. This utility model utilizes the combined use of a shell, support frame, dispensing window, collection cylinder, protective box, transmission shaft, first bevel gear, vertical shaft, second bevel gear, first handwheel, stabilizing frame, second handwheel, worm gear, fixed shaft, baffle, operating block, through hole, worm, and stirring mechanism. The device features a second handwheel operable from a distance and a first handwheel operable from close proximity, allowing teachers to use it flexibly according to the situation. Using the second handwheel from a distance reduces obstruction of the device during operation, making it easier for students to view the device from various angles. Using the first handwheel allows both teachers and students to approach the device for close-up operation and communication. This dual-handwheel design not only improves the ease of use of the device but also significantly enhances the teaching effect, enabling students to understand and participate in the teaching content more intuitively and comprehensively.

[0018] 2. This invention utilizes the combined use of gears and a ring-shaped gear plate to achieve both revolution and rotation of the push plate, resulting in a random motion of the colored balls within the shell. This motion ensures that the colored balls are fully agitated in every corner of the shell. This efficient agitation method makes the movement of the colored balls within the shell more comprehensive and random, greatly improving the accuracy and reliability of statistical data. This is particularly important for teaching activities that require recording and analyzing the movement of the colored balls. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a frontal sectional view of the present invention.

[0021] Figure 3 This is a top view schematic diagram of the connection structure between the annular toothed plate and the gear in this utility model;

[0022] Figure 4 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0023] Figure 5 For the present utility model Figure 2 Enlarged structural diagram at point B.

[0024] In the diagram: 1. Shell; 2. Support frame; 3. Dispensing window; 4. Collection cylinder; 5. Protective box; 6. Drive shaft; 7. First bevel gear; 8. Vertical shaft; 9. Second bevel gear; 10. First handwheel; 11. Stabilizer; 12. Second handwheel; 13. Partition plate; 14. Rotating plate; 15. Connecting rod; 16. Push plate; 17. Worm gear; 18. Fixed shaft; 19. Gear; 20. Ring toothed plate; 21. Baffle; 22. Operating block; 23. Through hole; 24. Worm. Detailed Implementation

[0025] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0026] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] The technical solutions of the present utility model 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 utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figures 1-5 One embodiment provided by this utility model:

[0030] A probability and statistics device for applied mathematics, comprising:

[0031] The shell 1 has a support frame 2 fixedly installed at its bottom. An injection window 3 is opened on the upper side of the outer surface of the shell 1. A protective box 5 is fixedly installed on the top of the shell 1. A partition 13 is fixedly installed on the upper part of the interior of the shell 1. A fixed shaft 18 is rotatably installed on the partition 13. The top end of the fixed shaft 18 passes through the shell 1 and extends into the interior of the protective box 5. The bottom end of the fixed shaft 18 extends to the bottom of the partition 13. A stirring mechanism is provided at the bottom end of the fixed shaft 18. A stabilizing frame 11 is fixedly installed on the upper part of one side of the outer surface of the shell 1.

[0032] A worm gear 24 is rotatably mounted inside the protective box 5, and a drive shaft 6 is rotatably mounted on the stabilizer 11. One end of the drive shaft 6 passes through the protective box 5 and extends into the interior of the protective box 5, where it is fixedly connected to one end of the worm gear 24.

[0033] A worm gear 17 is fixedly installed on the top outer wall of the fixed shaft 18, and the worm gear 17 meshes with the worm 24. A second handwheel 12 is fixedly installed on the other end of the transmission shaft 6. Several statistical mechanisms are provided at the bottom of the housing 1.

[0034] The stirring mechanism includes a rotating plate 14, which is fixedly connected to the bottom end of a fixed shaft 18. Several connecting rods 15 are equidistantly and uniformly mounted on the bottom of the rotating plate 14. A pusher plate 16 is fixedly mounted on the bottom end of each connecting rod 15. An annular toothed plate 20 is fixedly mounted on the bottom of a partition plate 13. The top ends of the connecting rods 15 penetrate the rotating plate 14 and extend above the top of the rotating plate 14. A gear 19 is fixedly mounted on the top end of each connecting rod 15, and the gear 19 meshes with the annular toothed plate 20.

[0035] In one embodiment, a vertical shaft 8 is rotatably mounted on the top side of the stabilizer 11 near the housing 1. A second bevel gear 9 is fixedly mounted on the top of the vertical shaft 8. A first bevel gear 7 is fixedly mounted on the outer wall of the drive shaft 6, and the first bevel gear 7 meshes with the second bevel gear 9. The bottom end of the vertical shaft 8 passes through the stabilizer 11 and extends to the bottom of the stabilizer 11. A first handwheel 10 is fixedly mounted on the bottom end of the vertical shaft 8.

[0036] In one preferred embodiment, the statistical mechanism includes a plurality of through holes 23, which are equidistantly and uniformly opened at the bottom of the housing 1. A collection cylinder 4 is threadedly connected to the bottom opening of the through holes 23, and a baffle 21 is movably inserted into the top of the collection cylinder 4. An operating block 22 is fixedly installed on one side of the baffle 21.

[0037] In one embodiment, the number of agitator plates 16 is at least four, enabling uniform, efficient, and random movement of the color spheres within the housing 1. This multi-aggregator plate design significantly improves the agitation effect and the accuracy of statistical data, enhancing the intuitiveness and interactivity of teaching and experiments.

[0038] In one preferred embodiment, both the housing 1 and the collecting cylinder 4 are made of transparent material. By using transparent material, teachers and students can intuitively observe the operation inside the device, realizing the visualization of the color ball's movement and enhancing students' understanding and participation.

[0039] The working principle of this utility model is as follows: All parts of the device not described herein are the same as or can be implemented using existing technology. In use, multiple colored balls are placed into the housing 1 through the delivery window 3. Next, the teacher begins to stir the colored balls inside the housing 1 using a stirring mechanism. The teacher can stand away from the device and then manually rotate the second handwheel 12. The rotation of the second handwheel 12 drives the transmission shaft 6 to rotate, which in turn drives the worm gear 24 to rotate. Through the meshing of the worm gear 24 with the worm wheel 17, the worm wheel 17 drives... The fixed shaft 18 rotates, driving the stirring mechanism to agitate the colored balls inside the shell 1. After agitation, the baffle 21 is pulled out from the top of the collection cylinder 4 via the operating block 22. At this time, the colored balls will randomly fall into the corresponding collection cylinder 4 through the through hole 23 under the influence of gravity. During the falling of the colored balls, the teacher or student can still rotate the second handwheel 12 to drive the stirring mechanism to agitate the colored balls inside the shell 1, ensuring that all the colored balls can enter the collection cylinder 4. Based on the colored balls entering the corresponding collection cylinder 4, the following is demonstrated. When probabilities arise, teachers and students can discuss them together. The device has a first handwheel 10 installed near the device itself. When students gather around to observe the device, the teacher can also approach and rotate the first handwheel 10. The rotation of the first handwheel 10 drives the vertical shaft 8, which in turn drives the second bevel gear 9. Through the meshing of the second bevel gear 9 with the first bevel gear 7, the first bevel gear 7 drives the transmission shaft 6, still achieving the stirring effect of the stirring mechanism. Therefore, by setting a second handwheel 12 that can be operated remotely and a first handwheel 10 that can be operated nearby, the device allows the teacher to use it randomly according to the situation. Using the second handwheel 12 reduces obstruction of the device during operation, making it easier for students to view the device from various angles. Using the first handwheel 10 allows both teachers and students to approach the device for close-up operation and communication. This dual-handwheel design not only improves the ease of use of the device but also significantly enhances the teaching effect, enabling students to understand and participate in the teaching content more intuitively and comprehensively.

[0040] During operation, the rotation of the fixed shaft 18 drives the rotating plate 14 to rotate. The rotating plate 14, through the connecting rod 15, drives the push plate 16 to rotate. Simultaneously, the rotation of the connecting rod 15 drives the gear 19 to revolve around the annular toothed plate 20. Through the meshing of the gear 19 with the annular toothed plate 20, the gear 19 rotates on its own axis while revolving. This rotation of the gear 19, through the connecting rod 15, drives the push plate 16 to rotate. Therefore, the push plate 16 achieves both revolution and rotation, resulting in a random motion of the colored balls inside the shell 1. This motion ensures that the colored balls are fully agitated in every corner of the shell 1. This efficient agitation method makes the movement of the colored balls within the shell 1 more comprehensive and random, greatly improving the accuracy and reliability of statistical data. This is particularly important for teaching activities that require recording and analyzing the movement of the colored balls.

[0041] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A probability and statistics device for applied mathematics, characterized in that, It includes: The shell (1) has a support frame (2) fixedly installed at the bottom of the shell (1), an injection window (3) is opened on the upper side of the outer surface of the shell (1), a protective box (5) is fixedly installed on the top of the shell (1), a partition (13) is fixedly installed on the upper inside of the shell (1), a fixed shaft (18) is rotatably installed on the partition (13), and the top end of the fixed shaft (18) penetrates the shell (1) and extends into the interior of the protective box (5), the bottom end of the fixed shaft (18) extends to the bottom of the partition (13), a stirring mechanism is provided at the bottom end of the fixed shaft (18), and a stabilizing frame (11) is fixedly installed on the upper side of one side of the outer surface of the shell (1). The protective box (5) is rotatably mounted with a worm gear (24), and the stabilizer (11) is rotatably mounted with a drive shaft (6). One end of the drive shaft (6) passes through the protective box (5) and extends into the interior of the protective box (5) to be fixedly connected to one end of the worm gear (24). A worm gear (17) is fixedly installed on the top outer wall of the fixed shaft (18), and the worm gear (17) meshes with the worm (24). A second handwheel (12) is fixedly installed at the other end of the transmission shaft (6). Several statistical mechanisms are provided at the bottom of the housing (1).

2. The probability and statistics device for applied mathematics according to claim 1, characterized in that: The stirring mechanism includes a rotating plate (14), and the bottom end of the rotating plate (14) is fixedly connected to the fixed shaft (18). Several connecting rods (15) are equidistantly and uniformly rotated at the bottom of the rotating plate (14). A push plate (16) is fixedly installed at the bottom end of the connecting rod (15). An annular toothed plate (20) is fixedly installed at the bottom of the partition plate (13). The top end of the connecting rod (15) passes through the rotating plate (14) and extends to the top of the rotating plate (14). A gear (19) is fixedly installed at the top end of the connecting rod (15), and the gear (19) meshes with the annular toothed plate (20).

3. The probability and statistics device for applied mathematics according to claim 1, characterized in that: A vertical shaft (8) is rotatably mounted on the top of the stabilizer (11) near the side of the housing (1). A second bevel gear (9) is fixedly mounted on the top of the vertical shaft (8). A first bevel gear (7) is fixedly mounted on the outer wall of the transmission shaft (6), and the first bevel gear (7) meshes with the second bevel gear (9). The bottom end of the vertical shaft (8) passes through the stabilizer (11) and extends to the bottom of the stabilizer (11). A first handwheel (10) is fixedly mounted on the bottom end of the vertical shaft (8).

4. A probability and statistics device for applied mathematics according to claim 1, characterized in that: The statistical mechanism includes several through holes (23), and the several through holes (23) are equidistantly and evenly opened at the bottom of the housing (1). A collection cylinder (4) is threadedly connected to the bottom opening of the through hole (23). A baffle (21) is movably inserted into the top of the collection cylinder (4). An operating block (22) is fixedly installed on one side of the baffle (21).

5. A probability and statistics device for applied mathematics according to claim 2, characterized in that: The number of push plates (16) is at least four.

6. A probability and statistics device for applied mathematics according to claim 4, characterized in that: Both the shell (1) and the collection tube (4) are made of transparent material.

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