Random ball taking simulation demonstration device

Abstract

The utility model relates to the technical field of simulation demonstration devices, and discloses a random ball-taking simulation demonstration device, which comprises a transparent ball, a rotating stand, a ball-taking device, a ball-taking device, a ball-taking device, a ball-taking device and a ball-taking device, the transmission gear is arranged at the rear end of the exterior of the transparent ball, a driving gear is rotationally mounted on one side of the rear end of the exterior of the transparent ball, a first driving plate is arranged on one side of the rear end of the exterior of the driving gear, and a first holding rod is rotationally mounted at the upper end of the exterior of the first driving plate; the side frames are arranged on the left side and the right side of the exterior of the transparent ball, a bottom box is arranged at the lower end of each side frame, the transparent ball is rotationally connected with the side frames through a rotating shaft, a second driving plate is arranged at the right end of the exterior of the rotating shaft, and a second holding rod is rotationally installed at the right end of the exterior of the second driving plate. According to the utility model, the stirring structure inside the device is added to cooperate with the overall rotation of the device, so that the balls are uniformly mixed to facilitate simulation demonstration teaching.

Description

Technical Field

[0001] The utility model relates to the technical field of simulation demonstration devices, in particular to a random ball picking simulation demonstration device. Background Art

[0002] Probability is a science and technology that studies random events, and is also mathematical statistics. It studies the quantitative laws of random phenomena. On the one hand, it has its own unique concepts and methods. On the other hand, it is closely related to other branches of mathematics. It is an important part of modern mathematics.

[0003] The random ball simulation device usually consists of a closed box and a set of balls of different colors. The box usually has an opening so that one ball can be drawn at a time. Each ball has a chance to be drawn, and the probability of drawing each ball is equal.

[0004] When using a random ball-picking simulation device, it is necessary to shake the random ball-picking simulation device so that the balls inside are evenly dispersed to prevent affecting the probability of drawing. Simply shaking the square box body prevents the balls from being evenly dispersed inside the box body. For this purpose, a random ball-picking simulation demonstration device is proposed. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the utility model provides a random ball picking simulation demonstration device to solve the problems raised in the above background technology.

[0007] (II) Technical solution

[0008] To achieve the above purpose, the utility model provides the following technical solution: a random ball picking simulation demonstration device, comprising:

[0009] A transparent ball, wherein a rotating frame is rotatably mounted inside the transparent ball;

[0010] A transmission gear is arranged at the rear end of the transparent ball, and the transmission gear is fixedly connected to the rotating frame. A driving gear is rotatably mounted on one side of the rear end of the transparent ball, and the driving gear is meshed with the transmission gear. A first driving plate is arranged on one side of the rear end of the driving gear, and a first gripping rod is rotatably mounted on the upper end of the first driving plate.

[0011] The side frames are arranged on the left and right sides of the outside of the transparent ball, the lower end of the side frames is provided with a bottom box, the transparent ball and the side frames are rotatably connected through a rotating shaft, the right end of the outside of the rotating shaft is provided with a second driving plate, and the right end of the outside of the second driving plate is rotatably installed with a second grip rod.

[0012] Preferably, a top cover is installed on the upper end of the transparent ball, and the top cover is connected to the transparent ball through threaded cooperation, and the top cover is opened so that the ball can be placed into the transparent ball from the upper end.

[0013] Preferably, a ball outlet tube is provided at the lower end of the transparent ball, and the ball outlet tube and the transparent ball are integrally formed, and pull rods are provided on both left and right sides of the outside of the ball outlet tube.

[0014] Preferably, a return spring is installed on the outside of the pull rod, the return spring is fixedly connected to the pull rod, the pull rod is slidably connected to the ball outlet tube, and the return spring enables the pull rod to have automatic return properties.

[0015] Preferably, a pull ball is installed at one end of the outside of the pull rod, and the pull ball is fixedly connected to the pull rod, so that the pull ball makes it more convenient to pull the pull rod.

[0016] Preferably, a carrying strap is installed at the lower end of the bottom box, and the carrying strap is fixedly connected to the bottom box, and the carrying strap is used to lift the bottom box.

[0017] (III) Beneficial effects

[0018] Compared with the prior art, the utility model provides a random ball picking simulation demonstration device, which has the following beneficial effects:

[0019] 1. The utility model rotates the first grip, which drives the first drive plate to rotate the driving gear, and the driving gear and the transmission gear drive the rotating frame to rotate. The rotating frame rotates longitudinally inside the transparent ball to stir the ball to mix it, and then rotates the second grip to rotate the second drive plate, thereby rotating the transparent ball. In this way, multiple balls are evenly mixed, solving the problem raised in the background technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is the overall structural front view of the utility model;

[0021] Figure 2 This is a cross-sectional view of the internal structure of the transparent ball of the utility model;

[0022] Figure 3 It is a side sectional view of the internal structure of the transparent ball of the utility model;

[0023] Figure 4 It is a schematic diagram of the bottom structure of the bottom box of the utility model.

[0024] In the figure: 1. transparent ball; 2. top cover; 3. rotating frame; 4. transmission gear; 5. driving gear; 6. first driving plate; 7. first grip; 8. ball outlet tube; 9. pull rod; 10. return spring; 11. side frame; 12. bottom box; 13. rotating shaft; 14. second driving plate; 15. second grip; 16. carrying strap. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] The utility model provides a technical solution, a random ball picking simulation demonstration device, please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 ,include:

[0027] A transparent ball 1, a rotating frame 3 is rotatably mounted inside the transparent ball 1;

[0028] A transmission gear 4 is arranged at the rear end of the outside of the transparent ball 1, and the transmission gear 4 is fixedly connected to the rotating frame 3. A driving gear 5 is rotatably installed on one side of the rear end of the outside of the transparent ball 1, and the driving gear 5 is meshed and connected with the transmission gear 4. A first driving plate 6 is arranged on one side of the rear end of the outside of the driving gear 5, and a first gripping rod 7 is rotatably installed on the upper end of the outside of the first driving plate 6;

[0029] The side frame 11 is arranged on the left and right sides of the outside of the transparent ball 1. The lower end of the side frame 11 is provided with a bottom box 12. The transparent ball 1 and the side frame 11 are rotatably connected through a rotating shaft 13. A second driving plate 14 is arranged at the right end outside the rotating shaft 13. A second gripping rod 15 is rotatably installed at the right end outside the second driving plate 14.

[0030] See also Figure 1 and Figure 2 A top cover 2 is installed on the upper end of the transparent ball 1, and the top cover 2 is connected to the transparent ball 1 through a threaded fit. The top cover 2 is opened so that the ball can be placed into the transparent ball 1 from the upper end.

[0031] See also Figure 1 and Figure 2 A ball outlet tube 8 is provided at the lower end of the transparent ball 1, and the ball outlet tube 8 is integrally formed with the transparent ball 1, and pull rods 9 are provided on both left and right sides of the outside of the ball outlet tube 8.

[0032] See also Figure 2 A return spring 10 is installed on the outside of the pull rod 9, the return spring 10 is fixedly connected to the pull rod 9, the pull rod 9 is slidably connected to the ball outlet tube 8, and the return spring 10 enables the pull rod 9 to have automatic return performance.

[0033] See also Figure 1 and Figure 2A pull ball is installed at one end of the outside of the pull rod 9, and the pull ball is fixedly connected to the pull rod 9, so that the pull ball makes it more convenient to pull the pull rod 9.

[0034] See also Figure 4 A carrying strap 16 is installed at the lower end of the bottom box 12 , and the carrying strap 16 is fixedly connected to the bottom box 12 , and the carrying strap 16 is used to lift the bottom box 12 .

[0035] This solution: open the top cover 2 to place multiple balls into the transparent ball 1, then close the top cover 2, rotate the first grip 7, the first grip 7 drives the first drive plate 6 to rotate the drive gear 5, the drive gear 5 and the transmission gear 4 drive the rotating frame 3 to rotate, the rotating frame 3 rotates longitudinally inside the transparent ball 1 to stir the balls to mix them, then rotate the second grip 15 to rotate the second drive plate 14, and then rotate the transparent ball 1, through the above method, multiple balls are evenly mixed, when it is necessary to take out the balls, pull the two pull rods 9 to separate them, so that the balls fall from the ball outlet tube 8, release the pull rods 9 and reset the springs 10 to reset the two pull rods 9 to stop the balls from continuing to pass through, flip the bottom box 12 to the upper end, and pull the carrying strap 16 to make the demonstration device easy to carry.

[0036] 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.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A random ball picking simulation demonstration device, characterized in that: include: A transparent ball (1), wherein a rotating frame (3) is rotatably mounted inside the transparent ball (1); A transmission gear (4) is arranged at the rear end of the outside of the transparent ball (1), and the transmission gear (4) is fixedly connected to the rotating frame (3); a driving gear (5) is rotatably mounted on one side of the rear end of the outside of the transparent ball (1), and the driving gear (5) is meshedly connected with the transmission gear (4); a first driving plate (6) is arranged on one side of the rear end of the outside of the driving gear (5), and a first gripping rod (7) is rotatably mounted on the upper end of the outside of the first driving plate (6); The side frame (11) is arranged on the left and right sides of the outside of the transparent ball (1), and a bottom box (12) is arranged at the lower end of the side frame (11). The transparent ball (1) and the side frame (11) are rotatably connected via a rotating shaft (13). A second driving plate (14) is arranged at the right end of the outside of the rotating shaft (13), and a second gripping rod (15) is rotatably mounted at the right end of the outside of the second driving plate (14).

2. A random ball picking simulation demonstration device according to claim 1, characterized in that: A top cover (2) is installed on the upper end of the transparent ball (1), and the top cover (2) is connected to the transparent ball (1) through threaded engagement.

3. A random ball picking simulation demonstration device according to claim 1, characterized in that: A ball outlet tube (8) is provided at the lower end of the transparent ball (1), and the ball outlet tube (8) and the transparent ball (1) are integrally formed, and pull rods (9) are provided on both left and right sides of the outside of the ball outlet tube (8).

4. A random ball picking simulation demonstration device according to claim 3, characterized in that: A return spring (10) is installed outside the pull rod (9), the return spring (10) is fixedly connected to the pull rod (9), and the pull rod (9) is slidably connected to the ball outlet tube (8).

5. A random ball picking simulation demonstration device according to claim 4, characterized in that: A pull ball is installed at one end of the outside of the pull rod (9), and the pull ball is fixedly connected to the pull rod (9).

6. A random ball picking simulation demonstration device according to claim 1, characterized in that: A handle (16) is installed at the lower end of the bottom box (12), and the handle (16) is fixedly connected to the bottom box (12).

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