A dynamic simulation experiment box for probability distribution

Abstract

The utility model discloses a kind of probability distribution dynamic simulation experiment box, it is related to educational auxiliary device technical field, including the sample storage box for storing sample ball, the sample storage box lower end is equipped with adjustable quantitative ball dropping assembly, the adjustable quantitative ball dropping assembly lower end is equipped with probability distribution display area, the probability distribution display area lower end is equipped with recovery area, valve assembly is equipped between the recovery area and probability distribution display area, the recovery area one side is equipped with circulating conveying assembly, the utility model passes through adjustable quantitative ball dropping assembly, the quantitative adjustment of single sample amount is realized, reaches sample capacity on-site adjustable, without replacing hardware can compare the purpose of different sample amount distribution curve.

Description

Technical Field

[0001] This utility model relates to the field of educational auxiliary device technology, specifically a probability distribution dynamic simulation experimental box. Background Technology

[0002] In fields such as probability theory and mathematical statistics teaching, popular science demonstrations, and Monte Carlo algorithm verification, mechanical devices are often used to visualize the distribution patterns of a "large number of independent random events." The traditional Galton plate is the most representative device: several small balls fall freely from a single entrance at the top, randomly collide in an alternating array of pins, and finally fall into a narrow slot of equal width at the bottom, forming a cumulative image that approximates a normal distribution.

[0003] However, traditional Galton plate devices still have certain problems in use. On the one hand, most existing products are "single-ball release" or "one-time pouring" structures, which cannot flexibly change the sample size for each experiment without changing the hardware, making it difficult to demonstrate the dynamic process of "increasing sample size - distribution stabilization" on site. On the other hand, manual collection and reloading are required after each experiment, which cannot achieve continuous and long-term dynamic observation, reduces the demonstration efficiency, and also limits the linkage with electronic modules such as data sampling and real-time statistics.

[0004] Based on this, a probability distribution dynamic simulation experimental box is now provided, which can eliminate the drawbacks of existing devices. Utility Model Content

[0005] The purpose of this invention is to provide a probability distribution dynamic simulation experimental box to solve the problems in the background technology.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A probability distribution dynamic simulation experimental chamber includes a sample storage box for storing sample balls, an adjustable quantitative ball-feeding assembly at the lower end of the sample storage box, a probability distribution display area at the lower end of the adjustable quantitative ball-feeding assembly, a recovery area at the lower end of the probability distribution display area, a valve assembly between the recovery area and the probability distribution display area, and a circulation conveying assembly on one side of the recovery area.

[0007] Based on the above technical solutions, this utility model also provides the following optional technical solutions: In one alternative: the sample storage box has a discharge port at its lower end, and the lower end of the discharge port is connected to a first mounting slot for installing an adjustable quantitative ball assembly.

[0008] In one alternative: the adjustable quantitative ball assembly includes a cylinder rotatably mounted in a first mounting groove, the cylinder being driven by a first motor, the cylinder having a material receiving groove for receiving samples, the material receiving groove having a second mounting groove, two guide grooves symmetrically provided on the side wall of the material receiving groove, and an adjustment component installed in the second mounting groove.

[0009] In one alternative embodiment: the adjusting component includes a support plate slidably installed in the material receiving groove and a worm gear disposed in the second mounting groove. Two guide blocks are symmetrically provided on both sides of the support plate and slidably installed in the guide groove. A sleeve is provided on the side of the support plate near the second mounting groove. A screw is fixed on the worm gear and the screw is threadedly connected to the sleeve. A worm is engaged with one side of the worm gear and the worm is driven by a second motor.

[0010] In one alternative: the probability distribution display area includes a transparent display area, which is divided into equally spaced vertical slots by several vertical plates. Several baffles are provided above the transparent display area, and the baffles are distributed in a staggered "plum blossom" shape.

[0011] In one alternative: the recycling area includes a hopper located below the transparent display area, the lower end of the hopper is provided with a discharge chute, one end of the discharge chute is connected to the circulating conveying assembly.

[0012] In one alternative: the valve assembly includes a movable base plate that is slidably mounted at the bottom of the transparent display area, and an electrically operated telescopic rod is provided on one side of the movable base plate.

[0013] In one alternative: the circulating conveying assembly includes a vertical pipe connecting the recycling area and the sample storage box, the lower end of the vertical pipe having an inlet connected to the discharge trough, the upper end of the vertical pipe having a return port connected to the sample storage box, and an auger inside the vertical pipe, the auger being driven by a third motor.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model achieves quantitative adjustment of single sample volume through an adjustable quantitative ball assembly, enabling on-site adjustment of sample volume and comparison of different sample volume distribution curves without hardware replacement.

[0015] 2. This utility model uses the linkage between the circulating conveying component and the valve component to make the ball automatically flow back to the sample storage box after completing one distribution experiment, achieving the effect of continuous circulation and long-term dynamic observation, which significantly improves the smoothness and participation of classroom and popular science demonstrations. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the structure of the circulating conveying component in this utility model.

[0018] Figure 3 This is a schematic diagram of the adjustable quantitative ball lowering assembly in this utility model.

[0019] Figure reference numerals: 100, Sample storage box; 101, Discharge port; 102, First mounting slot; 200, Adjustable quantitative ball lowering assembly; 201, Cylinder; 202, First motor; 203, Material receiving slot; 204, Second mounting slot; 205, Guide slot; 206, Support plate; 207, Guide block; 208, Sleeve; 209, Worm gear; 210, Screw; 211, Worm gear; 212, Second motor Machine; 300, Probability Distribution Display Area; 301, Transparent Display Area; 302, Vertical Plate; 303, Baffle; 400, Recycling Area; 401, Collection Hopper; 402, Discharge Chute; 500, Valve Assembly; 501, Movable Base Plate; 502, Electric Telescopic Rod; 600, Circulating Conveying Assembly; 601, Vertical Pipeline; 602, Feed Inlet; 603, Return Inlet; 604, Screw Conveyor; 605, Third Motor. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0021] In one embodiment, such as Figure 1 and Figure 2 As shown, a probability distribution dynamic simulation experimental box includes a sample storage box 100 for storing sample balls. An adjustable quantitative ball-feeding assembly 200 is located at the lower end of the sample storage box 100. A probability distribution display area 300 is located at the lower end of the adjustable quantitative ball-feeding assembly 200, and a recovery area 400 is located at the lower end of the probability distribution display area 300. A valve assembly 500 is located between the recovery area 400 and the probability distribution display area 300. A circulation conveying assembly 600 is located on one side of the recovery area 400. In use, the sample balls in the sample storage box 100 are fed into the probability distribution display area 300 through the adjustable quantitative ball-feeding assembly 200, so that the sample balls are distributed in the probability distribution display area 300 according to a certain probability distribution principle for observation. Then, the valve assembly 500 is opened, so that the sample balls in the probability distribution display area 300 are sent back to the sample storage box 100 through the recovery area 400 and the circulation conveying assembly 600, so as to facilitate the next probability distribution experiment.

[0022] In one embodiment, such as Figure 2 and Figure 3As shown, the sample storage box 100 has a discharge port 101 at its lower end. The lower end of the discharge port 101 is connected to a first mounting groove 102 for installing an adjustable quantitative ball-feeding assembly 200. The adjustable quantitative ball-feeding assembly 200 includes a cylinder 201 rotatably installed in the first mounting groove 102. The outer surface of the cylinder 201 is in close contact with the inner wall of the first mounting groove 102 to prevent the sample balls in the receiving groove 203 from falling out during the rotation of the cylinder 201. The cylinder 201 is driven by a first motor 202, and the cylinder 201 is provided with a sample receiving device. The material receiving trough 203 has a second mounting groove 204 inside it. Two guide grooves 205 are symmetrically arranged on the side wall of the material receiving trough 203. An adjusting component is installed in the second mounting groove 204. The adjusting component includes a support plate 206 slidably installed in the material receiving trough 203 and a worm gear 209 disposed in the second mounting groove 204. Two guide blocks 207 are symmetrically arranged on both sides of the support plate 206 and slidably installed in the guide grooves 205. A sleeve 208 is provided on the side of the support plate 206 near the second mounting groove 204. A screw is fixed to the worm gear 209. 210, the screw 210 is threadedly connected to the sleeve 208, and the worm gear 209 is meshed with a worm 211 on one side. The worm 211 is driven by the second motor 212. The probability distribution display area 300 includes a transparent display area 301. The transparent display area 301 is divided into equally spaced vertical grooves by several vertical plates 302. Several baffles 303 are provided above the transparent display area 301. The baffles 303 are arranged in a staggered "plum blossom" pattern. In use, a certain number of sample balls in the sample storage box 100 fall into the receiving groove 203 through the discharge port 101. Inside, the first motor 202 drives the cylinder 201 to rotate until the material receiving groove 203 moves to the bottom. The sample balls in the material receiving groove 203 fall freely into the probability distribution display area 300 under the action of gravity. After passing the area of ​​the baffle 303, they fall into the vertical groove of the transparent display area 301. The second motor 212 drives the worm gear 211 to rotate, which drives the worm wheel 209 and the screw 210 to rotate together, so that the support plate 206 slides up and down along the material receiving groove 203, thereby changing the number of sample balls that the material receiving groove 203 can carry at one time.

[0023] In one embodiment, such as Figure 2As shown, the recycling area 400 includes a hopper 401 located below the transparent display area 301. The hopper 401 has a discharge chute 402 at its lower end, one end of which is connected to the circulation conveying assembly 600. The valve assembly 500 includes a movable base plate 501 slidably installed at the bottom of the transparent display area 301. An electric telescopic rod 502 is located on one side of the movable base plate 501. The circulation conveying assembly 600 includes a vertical pipe 601 connecting the recycling area 400 and the sample storage box 100. The lower end of the vertical pipe 601 has an inlet 602 connected to the discharge chute 402, and the upper end of the vertical pipe 601 has a... There is a return port 603 connected to the sample storage box 100. The vertical pipe 601 is equipped with an auger 604, which is driven by a third motor 605. When the experiment is completed, the electric telescopic rod 502 is controlled to retract, which drives the movable base plate 501 away from the transparent display area 301, so that the sample balls in the transparent display area 301 fall into the collection hopper 401 at the lower end, and enter the vertical pipe 601 through the discharge chute 402 and the inlet 602. Then, the auger 604 is driven by the third motor 605 to rotate, which transports the sample balls upward and returns them to the sample storage box 100 from the return port 603.

[0024] The above embodiment discloses a probability distribution dynamic simulation experimental box. In use, a certain number of sample balls in the sample storage box 100 fall into the receiving trough 203 through the discharge port 101. Then, the first motor 202 drives the cylinder 201 to rotate until the receiving trough 203 moves to its lowest position. The sample balls in the receiving trough 203 then fall freely into the probability distribution display area 300 under gravity. After passing the baffle 303 area, they fall into the vertical groove of the transparent display area 301. The second motor 212 drives the worm gear 211 to rotate, which in turn drives the worm wheel 209 and the screw 210... The same rotation causes the tray 206 to slide up and down along the material receiving groove 203, thereby changing the number of sample balls that the material receiving groove 203 can hold at one time. After the experiment is completed, the electric telescopic rod 502 is controlled to retract, driving the movable base plate 501 to leave the transparent display area 301, so that the sample balls in the transparent display area 301 fall into the lower collection hopper 401, and enter the vertical pipe 601 through the discharge groove 402 and the inlet 602. Then, the auger 604 is driven to rotate by the third motor 605 to transport the sample balls upward, so that they return to the sample storage box 100 from the return port 603.

[0025] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A probability distribution dynamic simulation experimental chamber, characterized in that, The sample storage box (100) is used to store sample pellets. The lower end of the sample storage box (100) is provided with an adjustable quantitative pellet feeding assembly (200). The lower end of the adjustable quantitative pellet feeding assembly (200) is provided with a probability distribution display area (300). The lower end of the probability distribution display area (300) is provided with a recovery area (400). A valve assembly (500) is provided between the recovery area (400) and the probability distribution display area (300). A circulation conveying assembly (600) is provided on one side of the recovery area (400).

2. The probability distribution dynamic simulation experimental box according to claim 1, characterized in that, The sample storage box (100) is provided with a discharge port (101) at the lower end, and the lower end of the discharge port (101) is connected to the first mounting groove (102) for installing the adjustable quantitative ball assembly (200).

3. The probability distribution dynamic simulation experimental box according to claim 1, characterized in that, The adjustable quantitative ball assembly (200) includes a cylinder (201) rotatably installed in a first mounting groove (102). The cylinder (201) is driven by a first motor (202). The cylinder (201) is provided with a material receiving groove (203) for receiving samples. The material receiving groove (203) is provided with a second mounting groove (204). Two guide grooves (205) are symmetrically provided on the side wall of the material receiving groove (203). An adjusting component is installed in the second mounting groove (204).

4. The probability distribution dynamic simulation experimental box according to claim 3, characterized in that, The adjusting component includes a support plate (206) slidably installed in the material receiving groove (203) and a worm gear (209) set in the second mounting groove (204). The support plate (206) has two guide blocks (207) symmetrically installed in the guide groove (205) on both sides. The support plate (206) has a sleeve (208) on the side near the second mounting groove (204). A screw (210) is fixed on the worm gear (209). The screw (210) is threadedly connected to the sleeve (208). A worm (211) is meshed on one side of the worm gear (209). The worm (211) is driven by a second motor (212).

5. The probability distribution dynamic simulation experimental box according to claim 1, characterized in that, The probability distribution display area (300) includes a transparent display area (301), which is divided into equally spaced vertical slots by several vertical plates (302). Several baffles (303) are provided above the transparent display area (301), and the baffles (303) are distributed in a staggered "plum blossom" shape.

6. The probability distribution dynamic simulation experimental box according to claim 1, characterized in that, The recycling area (400) includes a hopper (401) located below the transparent display area (301), and a discharge chute (402) is provided at the lower end of the hopper (401). One end of the discharge chute (402) is connected to the circulating conveying assembly (600).

7. The probability distribution dynamic simulation experimental box according to claim 1, characterized in that, The valve assembly (500) includes a movable base plate (501) that is slidably mounted on the bottom of the transparent display area (301), and an electric telescopic rod (502) is provided on one side of the movable base plate (501).

8. The probability distribution dynamic simulation experimental box according to claim 1, characterized in that, The circulating conveying assembly (600) includes a vertical pipe (601) connecting the recycling area (400) and the sample storage box (100). The lower end of the vertical pipe (601) is provided with an inlet (602) communicating with the discharge trough (402). The upper end of the vertical pipe (601) is provided with a return port (603) communicating with the sample storage box (100). An auger (604) is provided inside the vertical pipe (601), and the auger (604) is driven by a third motor (605).

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