Probability statistics device
By introducing the design of falling ball tracks and scale lines into the probability statistics device, the intuitive display and automatic recovery of the number of small balls is realized, which solves the troublesome problems of manual recording and manual recycling in the prior art, and improves the convenience of use.
Patent Information
- Application Number
- CN202420563134.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-22
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2034-03-22
AI Technical Summary
The existing probability statistics device requires manual recording of the number of sample balls in the collection tank, and the number cannot be seen intuitively, and the falling sample balls need to be manually recycled, which is more troublesome.
A probability statistics device is designed, including ball falling tracks and scale lines. The automatic recycling and intuitive display of small balls are achieved through electric doors and electromagnetic doors. The setting of the turntable and small ball boxes allows the position of the small ball boxes to be changed, realizing the automatic ball games. Recycle.
Users can intuitively see the number of balls in the falling ball track, which improves the convenience of use, does not require manual recycling of balls, and improves the convenience of the device.
Smart Images
Figure CN222167784U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of teaching demonstration tools, in particular to a probability statistics device. Background Art
[0002] Probability statistics is a mathematical method for studying the statistical laws of random phenomena in nature, which is called probability statistics, also known as mathematical statistics methods. In order to allow students to intuitively contact the concept of probability statistics, some probability statistics demonstration devices have been proposed in the prior art, such as a statistical probability demonstration device proposed in the authorized patent with application number CN202021875447.0, which includes a base, a guide plate, a sample ball and a motor. The left side of the base is fixedly connected with a support column, the inner side of the base is provided with a collection groove, and the upper side of the base is installed with a guide plate, the outer surface of the guide plate is provided with a slide groove, and the inner side of the slide groove is fixedly installed with a wool belt, the right side of the support rod is fixedly connected with a cylinder, and the inside of the cylinder is connected with a control rod, and the upper end of the cylinder is fixedly installed with a ball inlet and other components. When the above scheme is used, it is necessary to manually record the number of sample balls in the collection groove, and the number of sample balls in the collection groove cannot be intuitively seen; and the fallen sample balls need to be manually recovered, which is more troublesome; based on this, the present application proposes a probability statistics device. Utility Model Content
[0003] The utility model provides a probability statistics device, which solves the problem that the number of sample balls in the collecting tank needs to be manually recorded, the number of sample balls in the collecting tank cannot be visually seen, and the fallen sample balls need to be manually retrieved, which is troublesome.
[0004] The utility model provides the following technical solutions: a probability statistics device, comprising a support frame, a fixed plate is fixed on the top of the support frame, a turntable is movably connected to the outer ring of the fixed plate, a small ball box is fixed on the top and bottom of the turntable, a ball inlet and outlet are provided at one end of the small ball box close to the fixed plate, a ball falling track is fixed on the front of the fixed plate, an electric door is provided at the ball scoring end of the ball falling track, an electromagnetic door is provided at the ball outlet end of the ball falling track, and a scale line is provided at the ball outlet end of the ball falling track, a shielding plate is fixed to the front of the fixed plate by bolts, and the back of the shielding plate is in contact with the ball falling track.
[0005] Preferably, a gear ring is fixed to the inner wall of the back side of the turntable, a rotating motor is fixed to the back side of the fixed plate, and a gear meshing with the gear ring is fixedly connected to the end of the output shaft of the rotating motor.
[0006] Preferably, the electric door includes a door opening motor fixedly connected to a fixed plate, an opening and closing door is fixedly connected to the end of the output shaft of the door opening motor, the outer diameter of the opening and closing door is the same as the inner diameter of the turntable, and the opening and closing door is adapted to the goal end of the ball falling track.
[0007] Preferably, the electromagnetic door includes a limit plate fixed to a fixed plate, the outer ring of the limit plate is movably connected to a sliding door, the top of the limit plate is fixedly connected to a support block, the limit plate and the support block are connected by a spring, an electromagnet is provided in the middle of the support block, and when the electromagnet is energized, the electromagnet and the sliding door are magnetically attracted to each other.
[0008] Preferably, the sliding door is L-shaped, the horizontal end of the sliding door is adapted to the discharge end of the ball drop track, the vertical end of the sliding door is movably connected to the limit plate, and the top of the horizontal end of the sliding door is at the same height as the bottom of the ball drop track.
[0009] Preferably, the inner cavity of the ball-falling track only accommodates the movement of one small ball.
[0010] Preferably, the shielding plate is made of transparent material, the distance between the bottom of the scale line and the bottom of the ball falling track is the radius of the ball, and the distance between two adjacent lines in the scale line is the same as the diameter of the ball.
[0011] Compared with the prior art, the utility model has the following beneficial effects:
[0012] 1. The probability statistics device, through the setting of the ball falling track and the scale line, allows the user to intuitively see the number of small balls in each discharge end of the ball falling track and the specific number of small balls, thereby improving the convenience of using the device.
[0013] 2. The probability statistics device, through the setting of the turntable and the small ball box, the rotation of the turntable causes the positions of the two small ball boxes to be swapped, thereby realizing automatic recovery of the small balls. As a result, when the device is in use, there is no need for manual recovery of the small balls, thereby improving the convenience of the device when in use. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is a front view of the structure of the utility model;
[0015] Figure 2 The utility model structure Figure 1 Back side diagram;
[0016] Figure 3 The utility model structure Figure 1 Internal schematic diagram;
[0017] Figure 4 The utility model structure Figure 3 Front view schematic diagram;
[0018] Figure 5 This is a schematic diagram of the electromagnetic door structure of the utility model.
[0019] In the figure: 1. Support frame; 2. Fixing plate; 3. Bolt; 4. Shielding plate; 5. Small ball box; 6. Turntable; 7. Gear ring; 8. Gear; 9. Rotating motor; 10. Ball falling track; 11. Sliding door; 12. Ball inlet and outlet; 13. Opening and closing door; 14. Limiting plate; 15. Support block; 16. Electromagnet; 17. Spring; 18. Scale line; 19. Door opening motor. DETAILED DESCRIPTION
[0020] 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.
[0021] The utility model provides a probability statistics device, including a support frame 1, a fixed plate 2 is fixed on the top of the support frame 1, a turntable 6 is movably connected to the outer ring of the fixed plate 2, a gear ring 7 is fixed to the inner wall of the back of the turntable 6, a rotating motor 9 is fixed to the back of the fixed plate 2, and a gear 8 meshing with the gear ring 7 is fixedly connected to the end of the output shaft of the rotating motor 9 through a reducer. Through the setting of the rotating motor 9, the operation of the rotating motor 9 can drive the gear 8 fixedly connected thereto to rotate, and the gear 8 drives the turntable 6 to rotate through the gear ring 7 meshing therewith.
[0022] Small ball boxes 5 are fixed to the top and bottom of the turntable 6, and a ball inlet and outlet 12 is provided at one end of the small ball box 5 close to the fixed plate 2. Through the arrangement of the turntable 6, when the turntable 6 rotates, the positions of the two small ball boxes 5 can be swapped, so that the device can be used continuously when in use, thereby improving the convenience of the device when in use.
[0023] A ball-dropping track 10 is fixed to the front of the fixed plate 2, an electric door is provided at the goal-scoring end of the ball-dropping track 10, and an electromagnetic door is provided at the ball-discharging end of the ball-dropping track 10. In some embodiments of the present application, the electric door includes a door-opening motor 19 fixedly connected to the fixed plate 2, and an opening and closing door 13 is fixedly connected to the end of the output shaft of the door-opening motor 19 through a reducer, and the outer diameter of the opening and closing door 13 is the same as the inner diameter of the turntable 6, and the opening and closing door 13 is adapted to the goal-scoring end of the ball-dropping track 10. Through the setting of the door-opening motor 19, the rotation of the door-opening motor 19 can drive the opening and closing door 13 fixedly connected thereto to rotate, and the electric door can be opened and closed. When the electric door is opened, the small ball in the small ball box 5 located at the top of the turntable 6 can fall into the ball-dropping track 10.
[0024] The electromagnetic door includes a limit plate 14 fixed to the fixed plate 2, the outer ring of the limit plate 14 is movably connected to the sliding door 11, the top of the limit plate 14 is fixedly connected to the support block 15, the limit plate 14 and the support block 15 are connected by a spring 17, and an electromagnet 16 is provided in the middle of the support block 15. When the electromagnet 16 is energized, the electromagnet 16 and the sliding door 11 are magnetically attracted, and the sliding door 11 is L-shaped, the horizontal end of the sliding door 11 is adapted to the discharging end of the ball falling track 10, the vertical end of the sliding door 11 is movably connected to the limit plate 14, and the top of the horizontal end of the sliding door 11 is at the same height as the bottom of the ball falling track 10.
[0025] Through the setting of the electromagnetic door, when the electromagnet 16 is energized, the sliding door 11 can be away from the discharge end of the ball falling track 10, and the small balls in the ball falling track 10 can fall into the small ball box 5 located below the turntable 6 under the action of gravity, thereby realizing automatic picking up of the small balls. When the electromagnet 16 is powered off, the sliding door 11 can block the discharge end of the ball falling track 10 under the action of the rebound force of the spring 17, thereby facilitating the reuse of the device.
[0026] The inner cavity of the ball-dropping track 10 accommodates only one small ball to move, and the user can intuitively see how many small balls are contained in each discharge end of the ball-dropping track 10. The discharge end of the ball-dropping track 10 is provided with a scale line 18, and the distance between the bottom of the scale line 18 and the bottom of the ball-dropping track 10 is the radius of the small ball, and the distance between two adjacent lines in the scale line 18 is the same as the diameter of the small ball, so that the user can accurately see the number of small balls in each discharge end of the ball-dropping track 10.
[0027] The front of the fixing plate 2 is fixed with a shielding plate 4 by bolts 3. The shielding plate 4 is made of transparent material, and the back of the shielding plate 4 contacts the ball-dropping track 10. The arrangement of the bolts 3 facilitates the disassembly and assembly of the shielding plate 4.
[0028] The electrical components involved in this application are all prior art, and technicians in this field are familiar with their connection methods. Through these technicians, all the electrical components in this application are connected to their compatible power supplies through wires, and according to the actual situation, a suitable controller is selected to meet the control requirements. The specific connection and control sequence are described below. The electrical connection is completed in a sequential working order, and the detailed connection means are well known in the art. The following mainly introduces the working principle and process, and no further explanation of the electrical control is given.
[0029] To sum up: when the probability statistics device is in use, when the electric door is opened, the balls in the small ball box 5 located above the turntable 6 can fall into the ball falling track 10 under the action of gravity, and the balls move in the ball falling track 10. The user can accurately see the number of balls in each discharge end of the ball falling track 10 through the scale line 18, which is convenient for the ball throwing probability statistics; and when the electromagnetic door is opened, the balls can fall into the small ball box located below the turntable 6 under the action of gravity. When the turntable 6 rotates, the positions of the two small ball boxes 5 are swapped, so that the device does not need to be used to manually recover the balls, thereby improving the convenience of the device when used.
[0030] The standard parts used in the utility model can be purchased from the market, and the special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art and will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field. Although the embodiments of the utility model have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and modifications can be made to these embodiments without departing from the principle and spirit of the utility model. The scope of the utility model is defined by the attached claims and their equivalents.
Claims
1. A probability statistics device, comprising a support frame (1), Features: A fixed plate (2) is fixed on the top of the support frame (1), and a turntable (6) is movably connected to the outer ring of the fixed plate (2). A small ball box (5) is fixed on the top and bottom of the turntable (6). An end of the small ball box (5) close to the fixed plate (2) is provided with a ball inlet and outlet (12). A ball drop track (10) is fixed on the front of the fixed plate (2). An electric door is provided at the ball entry end of the ball drop track (10), an electromagnetic door is provided at the ball exit end of the ball drop track (10), and a scale line (18) is provided at the ball exit end of the ball drop track (10). A shielding plate (4) is fixed on the front of the fixed plate (2) by means of bolts (3), and the back of the shielding plate (4) is in contact with the ball drop track (10).
2. A probability statistics device according to claim 1, Features: A gear ring (7) is fixed to the inner wall of the back of the rotating disk (6), a rotating motor (9) is fixed to the back of the fixed plate (2), and a gear (8) meshing with the gear ring (7) is fixedly connected to the end of the output shaft of the rotating motor (9).
3. A probability statistics device according to claim 1, Features: The electric door comprises a door opening motor (19) fixedly connected to a fixed plate (2); an opening and closing door (13) is fixedly connected to the end of an output shaft of the door opening motor (19); the outer diameter of the opening and closing door (13) is the same as the inner diameter of a turntable (6); and the opening and closing door (13) is adapted to the goal end of a ball-dropping track (10).
4. A probability statistics device according to claim 1, Features: The electromagnetic door comprises a limit plate (14) fixed to a fixed plate (2); the outer ring of the limit plate (14) is movably connected to the sliding door (11); the top of the limit plate (14) is fixedly connected to a support block (15); the limit plate (14) and the support block (15) are connected via a spring (17); an electromagnet (16) is provided in the middle of the support block (15); when the electromagnet (16) is energized, the electromagnet (16) and the sliding door (11) are magnetically attracted to each other.
5. A probability statistics device according to claim 4, Features: The sliding door (11) is L-shaped, the horizontal end of the sliding door (11) is adapted to the discharge end of the ball-dropping track (10), the vertical end of the sliding door (11) is movably connected to the limit plate (14), and the top of the horizontal end of the sliding door (11) is at the same height as the bottom of the ball-dropping track (10).
6. A probability statistics device according to claim 1, Features: The inner cavity of the ball-falling track (10) only accommodates one small ball to move.
7. A probability statistics device according to claim 1, Features: The shielding plate (4) is made of transparent material, the distance between the bottom of the scale line (18) and the bottom of the ball-falling track (10) is the radius of the ball, and the distance between two adjacent lines in the scale line (18) is the same as the diameter of the ball.