Probability demonstration device for applied mathematics

Abstract

The utility model relates to the technical field of mathematics probability demonstration, and discloses a probability demonstration device for applied mathematics, which comprises a base, the upper surface of the base is fixedly connected with a hydraulic cylinder, the output end of the hydraulic cylinder is fixedly connected with a transmission plate, and the inner wall of the transmission plate is slidably connected with a first sliding rail. The lower surface of the first sliding rail is fixedly connected to the upper surface of the base, a fixing rod is slidably connected to the interior of the transmission plate, a rotating plate is fixedly connected to the outer wall of the rear side of the fixing rod, and a limiting assembly is arranged on the outer wall of the upper side of the base and used for limiting the L-shaped plate. According to the probability demonstration device, the hydraulic cylinder is started to push the transmission plate to drive the fixed rod and the rotating plate to rotate, drive the connecting rod and the L-shaped plate to rotate, drive the telescopic rod to move rightwards and stretch at the same time, then angle adjustment is conducted on the demonstration box, diversified probability demonstration is achieved, and the learning experience effect is enhanced.

Description

Technical Field

[0001] This utility model relates to the field of mathematical probability demonstration technology, and in particular to a probability demonstration device that applies mathematics. Background Technology

[0002] Applied mathematics is the study of the application and solutions of mathematical theories to practical problems. It encompasses the establishment, analysis, and optimization of mathematical models, using mathematical tools and methods to solve various practical problems from fields such as physics, engineering, economics, and biology, helping people understand the behavior and patterns of complex systems. To intuitively demonstrate and understand the concept of probability, a probability demonstration device is used. This device visualizes the frequency and probability distribution of random events, allowing learners to directly observe the practical application of the law of large numbers and probability theory.

[0003] Existing probability demonstration devices typically fix the display box on a flat surface for probability demonstrations. The lack of angle adjustment for the display box limits the demonstration to fixed conditions, which affects the learning experience. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a probability demonstration device based on applied mathematics, which aims to improve the problem that probability demonstration devices lack the ability to adjust the angle of the display box during use.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A probability demonstration device for applied mathematics includes a base. A hydraulic cylinder is fixedly connected to the upper surface of the base. A transmission plate is fixedly connected to the output end of the hydraulic cylinder. A slide rail is slidably connected to the inner wall of the transmission plate. The lower surface of the slide rail is fixedly connected to the upper surface of the base. A fixed rod is slidably connected inside the transmission plate. A rotating plate is fixedly connected to the rear outer wall of the fixed rod. A connecting rod is fixedly connected inside the rotating plate. A U-shaped plate is rotatably connected to the outer wall of the connecting rod. An L-shaped plate is fixedly connected to the middle outer wall of the connecting rod. A support column is provided on the lower surface of the L-shaped plate. A fixed frame is fixedly connected to the upper surface of the L-shaped plate. A display box is fixedly connected to the upper surface of the fixed frame. A limit component is provided on the upper outer wall of the base for limiting the L-shaped plate.

[0007] Preferably, the limiting component includes a telescopic rod, the lower inner side of which is rotatably connected to the upper outer wall of the base, and the upper inner side of which is rotatably connected to the lower outer wall of the L-shaped plate.

[0008] Preferably, the lower surface of the transmission plate is slidably connected to the upper surface of the base, the lower surface of the U-shaped plate is fixedly connected to the upper surface of the base, and the lower surface of the support column is fixedly connected to the upper surface of the base.

[0009] Preferably, an inlet pipe is fixedly connected to the upper surface of the display box, a circular plate is fixedly connected to the inside of the display box, a collection box is provided on the lower surface of the display box, and a fixing base is fixedly connected to the lower surface of the display box.

[0010] Preferably, a guide cylinder is fixedly connected inside the circular plate, the lower outer wall of the guide cylinder is fixedly connected to the inner wall of the display box, and a short column is fixedly connected inside the fixing base.

[0011] Preferably, a sliding rod is slidably connected inside the short column, and a limit block is fixedly connected to the right outer wall of the sliding rod.

[0012] Preferably, the right outer wall of the limiting block is slidably connected to the inner wall of the collection box, the left outer wall of the limiting block is fixedly connected to a spring, and the left outer wall of the spring is fixedly connected to the right outer wall of the short column.

[0013] Preferably, the inner wall of the limiting block is slidably connected to a second slide rail, and the upper surface of the second slide rail is fixedly connected to the lower surface of the fixed base.

[0014] This utility model has the following beneficial effects:

[0015] 1. In this utility model, by starting the hydraulic cylinder, the transmission plate is driven to rotate the fixed rod and the rotating plate, which in turn drives the connecting rod and the L-shaped plate to rotate. This causes the telescopic rod to move to the right and stretch, thereby adjusting the angle of the display box to achieve diversified probability demonstrations and enhance the learning experience.

[0016] 2. In this utility model, by pulling the slide rod, the limiting block slides to the left on the outer wall of the slide rail two, which compresses the spring and causes the outer wall of the limiting block to slide out of the inner wall of the collection box, thus no longer restricting the collection box. This achieves the effect of quick installation and disassembly of the collection box, making it easy to clean. Attached Figure Description

[0017] Figure 1 This is a three-dimensional view of a probability demonstration device applying mathematics proposed in this utility model;

[0018] Figure 2 This is a partial structural diagram of the telescopic rod of a probability demonstration device applying mathematics proposed in this utility model.

[0019] Figure 3 A cross-sectional view of the internal structure of the display box of a probability demonstration device for applied mathematics proposed in this utility model;

[0020] Figure 4 This is a partial structural diagram of the fixed base of a probability demonstration device applying mathematics proposed in this utility model.

[0021] Legend:

[0022] 1. Base; 2. Hydraulic cylinder; 3. Transmission plate; 4. Slide rail one; 5. Fixed rod; 6. Rotating plate; 7. Connecting rod; 8. L-shaped plate; 9. Support column; 10. Telescopic rod; 11. Fixing frame; 12. Display box; 13. Inlet tube; 14. Circular plate; 15. Guide cylinder; 16. Collection box; 17. Fixed seat; 18. Slide rail two; 19. Short column; 20. Slide rod; 21. Spring; 22. Limiting block; 23. U-shaped plate. Detailed Implementation

[0023] 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.

[0024] Reference Figure 1 and Figure 2 This utility model provides an embodiment of a probability demonstration device using applied mathematics, comprising a base 1, a hydraulic cylinder 2 fixedly connected to the upper surface of the base 1, a transmission plate 3 fixedly connected to the output end of the hydraulic cylinder 2, a slide rail 4 slidably connected to the inner wall of the transmission plate 3, the lower surface of the slide rail 4 fixedly connected to the upper surface of the base 1, a fixed rod 5 slidably connected inside the transmission plate 3, a rotating plate 6 fixedly connected to the rear outer wall of the fixed rod 5, a connecting rod 7 fixedly connected inside the rotating plate 6, and a rotatable connection between the outer wall of the connecting rod 7 and the base 1. There is a U-shaped plate 23, and an L-shaped plate 8 is fixedly connected to the middle outer wall of the connecting rod 7. A support column 9 is provided on the lower surface of the L-shaped plate 8, and a fixing frame 11 is fixedly connected to the upper surface of the L-shaped plate 8. A display box 12 is fixedly connected to the upper surface of the fixing frame 11. A limit component is provided on the upper outer wall of the base 1. The limit component is used to limit the L-shaped plate 8. The limit component includes a telescopic rod 10. The lower inner side of the telescopic rod 10 is rotatably connected to the upper outer wall of the base 1, and the upper inner side of the telescopic rod 10 is rotatably connected to the lower outer wall of the L-shaped plate 8.

[0025] Specifically, when the display case 12, after angle adjustment, needs to return to its original position, the hydraulic cylinder 2 is activated to pull the transmission plate 3 to slide to the right. The slide rail 4 achieves the effect of offset limitation on the sliding of the transmission plate 3. The transmission plate 3 drives the fixed rod 5 and the rotating plate 6 to rotate to the left, which in turn drives the connecting rod 7 and the L-shaped plate 8 to rotate to the right. This causes the telescopic rod 10 to move to the left and shorten, so that the lower surface of the L-shaped plate 8 fits against the upper surface of the support column 9, thereby returning the display case 12 to its original position. The U-shaped plate 23 provides support for the rotation of the connecting rod 7, the support column 9 provides support for the flat L-shaped plate 8, and the telescopic rod 10 limits the range of rotation of the L-shaped plate 8. Since the display case 12 is a transparent box, it is easy to observe the demonstration.

[0026] Reference Figure 2 The lower surface of the transmission plate 3 is slidably connected to the upper surface of the base 1, the lower surface of the U-shaped plate 23 is fixedly connected to the upper surface of the base 1, and the lower surface of the support column 9 is fixedly connected to the upper surface of the base 1.

[0027] Specifically, the upper surface of the base 1 supports the transmission plate 3, and the upper surface of the base 1 fixes the support column 9.

[0028] Reference Figure 3 and Figure 4 The upper surface of the display case 12 is fixedly connected to the inlet tube 13, the interior of the display case 12 is fixedly connected to the circular plate 14, the lower surface of the display case 12 is provided with the collection box 16, and the lower surface of the display case 12 is fixedly connected to the fixing seat 17; the interior of the circular plate 14 is fixedly connected to the guide cylinder 15, the lower outer wall of the guide cylinder 15 is fixedly connected to the inner wall of the display case 12, the interior of the fixing seat 17 is fixedly connected to the short column 19; the interior of the short column 19 is slidably connected to the slide rod 20, the right outer wall of the slide rod 20 is fixedly connected to the limit block 22; the right outer wall of the limit block 22 is slidably connected to the inner wall of the collection box 16, the left outer wall of the limit block 22 is fixedly connected to the spring 21, the left outer wall of the spring 21 is fixedly connected to the right outer wall of the short column 19; the inner wall of the limit block 22 is slidably connected to the slide rail 18, and the upper surface of the slide rail 18 is fixedly connected to the lower surface of the fixing seat 17;

[0029] Specifically, the circular plate 14 and guide cylinder 15 inside the display box 12 achieve the effect of probability demonstration. By pulling the slide bar 20, the limiting block 22 slides to the left, compressing the spring 21 and bringing the upper surface of the collection box 16 into contact with the lower surface of the display box 12. Releasing the slide bar 20, under the elastic force of the spring 21, causes the limiting block 22 to slide to the right and into the inner wall of the collection box 16, limiting the collection box 16 and achieving the effect of quick installation. The slide rail 28 provides support for the limiting block 22, and the inside of the short column 19 limits the sliding of the slide bar 20.

[0030] Working principle: When using this device, the sphere or other object to be demonstrated is placed into the inlet pipe 13, passes through the circular plate 14, and randomly enters the guide cylinder 15. The demonstration result is then displayed inside the collection box 16. Simultaneously, by pulling the slide rod 20, which slides inside the short column 19, the limiting block 22 slides to the left on the outer wall of the second slide rail 18, compressing the spring 21. This causes the outer wall of the limiting block 22 to slide out of the outer wall of the collection box 16, no longer restricting it, achieving the effect of quick installation and disassembly of the collection box 16, thus facilitating observation of the demonstration result. When diverse demonstrations are required, the hydraulic cylinder 2 is activated to push the transmission plate 3 to slide on the outer wall of the first slide rail 4, bringing... The fixed rod 5 and the rotating plate 6 rotate around the connecting rod 7 as the center, causing the connecting rod 7 to rotate inside the U-shaped plate 23, which in turn causes the L-shaped plate 8 to rotate to the right. This causes the telescopic rod 10 to stretch while rotating, thus limiting the rotation of the L-shaped plate 8. The angle of the display box 12 can be adjusted through the L-shaped plate 8, thereby achieving the effect of demonstrating diversity and interest. During use, this device not only allows for angle adjustment of the display box 12 to achieve diversified demonstrations of probability, thereby deepening the understanding of probability theory, but also enables quick installation and disassembly of the collection box 16, facilitating observation of demonstration results and making it convenient for cleaning or maintenance.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A probability demonstration device for applied mathematics, comprising a base (1), characterized in that: A hydraulic cylinder (2) is fixedly connected to the upper surface of the base (1). A transmission plate (3) is fixedly connected to the output end of the hydraulic cylinder (2). A slide rail (4) is slidably connected to the inner wall of the transmission plate (3). The lower surface of the slide rail (4) is fixedly connected to the upper surface of the base (1). A fixing rod (5) is slidably connected inside the transmission plate (3). A rotating plate (6) is fixedly connected to the rear outer wall of the fixing rod (5). A connecting rod is fixedly connected inside the rotating plate (6). (7) A U-shaped plate (23) is rotatably connected to the outer wall of the connecting rod (7). An L-shaped plate (8) is fixedly connected to the middle outer wall of the connecting rod (7). A support column (9) is provided on the lower surface of the L-shaped plate (8). A fixing frame (11) is fixedly connected to the upper surface of the L-shaped plate (8). A display box (12) is fixedly connected to the upper surface of the fixing frame (11). A limiting component is provided on the upper outer wall of the base (1). The limiting component is used to limit the L-shaped plate (8).

2. The probability demonstration device for applied mathematics according to claim 1, characterized in that: The limiting component includes a telescopic rod (10), the lower inner side of which is rotatably connected to the upper outer wall of the base (1), and the upper inner side of which is rotatably connected to the lower outer wall of the L-shaped plate (8).

3. The probability demonstration device for applied mathematics according to claim 1, characterized in that: The lower surface of the transmission plate (3) is slidably connected to the upper surface of the base (1), the lower surface of the U-shaped plate (23) is fixedly connected to the upper surface of the base (1), and the lower surface of the support column (9) is fixedly connected to the upper surface of the base (1).

4. The probability demonstration device for applied mathematics according to claim 1, characterized in that: The upper surface of the display box (12) is fixedly connected to an inlet pipe (13), the inside of the display box (12) is fixedly connected to a circular plate (14), the lower surface of the display box (12) is provided with a collection box (16), and the lower surface of the display box (12) is fixedly connected to a fixing seat (17).

5. The probability demonstration device for applied mathematics according to claim 4, characterized in that: The circular plate (14) is fixedly connected to a guide cylinder (15), the lower outer wall of the guide cylinder (15) is fixedly connected to the inner wall of the display box (12), and the fixed base (17) is fixedly connected to a short column (19).

6. The probability demonstration device for applied mathematics according to claim 5, characterized in that: The short column (19) is internally slidably connected to a slide rod (20), and a limit block (22) is fixedly connected to the right outer wall of the slide rod (20).

7. The probability demonstration device for applied mathematics according to claim 6, characterized in that: The right outer wall of the limiting block (22) is slidably connected to the inner wall of the collection box (16), and the left outer wall of the limiting block (22) is fixedly connected to a spring (21), and the left outer wall of the spring (21) is fixedly connected to the right outer wall of the short column (19).

8. The probability demonstration device for applied mathematics according to claim 6, characterized in that: The inner wall of the limiting block (22) is slidably connected to a slide rail (18), and the upper surface of the slide rail (18) is fixedly connected to the lower surface of the fixed seat (17).

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