CN112201123A

CN112201123A - Probability demonstration device

Info

Publication number: CN112201123A
Application number: CN202011313645.2A
Authority: CN
Inventors: 王子子
Original assignee: Yantai Vocational College
Current assignee: Yantai Vocational College
Priority date: 2020-11-20
Filing date: 2020-11-20
Publication date: 2021-01-08

Abstract

The invention discloses a probability demonstration device, and relates to the technical field of teaching. The feeding machine body component comprises a bottom frame for fixing the upper side of the lower placing platform component, a feeding side frame is arranged on the upper side of the bottom frame, two rotating shafts are arranged on the inner surface of the feeding side frame in a penetrating way, the two rotating shafts are vertically arranged, the surface of the rotating shaft at the upper side is provided with a first gear, the surface of the rotating shaft at the lower side is provided with a second gear, the outer end of the rotating shaft at the lower side is fixedly provided with a rotating handle, the demonstration ball is carried up and down by the displacement of the feeding frame component in the feeding machine body component without carrying the ball manually, the ball body demonstration device is simple in structure, free of external power supply and free of limitation of external conditions, and solves the problems that manual feeding is mostly carried out on demonstration balls after use is completed, the use time of people is influenced, teaching time is delayed, and the efficiency of a manual carrying mode is low.

Description

Probability demonstration device

Technical Field

The invention relates to the technical field of teaching, in particular to a probability demonstration device.

Background

In the field of teaching at ordinary times, various demonstration aiming at different teaching directions need to be used, wherein a probability demonstration device is needed aiming at probability demonstration.

One of the probabilities is normal distribution, and the most direct probability demonstration is a Goldon board, and the demonstration device has certain defects in use:

(1) manual feeding is mostly carried out by personnel after the demonstration ball is used, so that the using time of the personnel is influenced, the teaching time is delayed, and the manual carrying mode is low in efficiency and inconvenient to operate;

(2) the demonstration device can not adjust the height and simultaneously meet the adjustment rotation of the angle, and has poor flexibility and inconvenience for the study of the study personnel.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a probability demonstration device, which solves the problems that manual feeding is mostly carried out by personnel after a demonstration ball body is used, the using time of the personnel is influenced, the teaching time is delayed, the efficiency of a manual carrying mode is low, the operation is inconvenient, the demonstration device cannot be adjusted in height, meanwhile, the adjustment rotation of the angle is met, the flexibility is poor, and the study of learners is inconvenient.

In order to achieve the purpose, the invention is realized by the following technical scheme: a probability demonstration device comprises a Golgin demonstration component, a feeding machine body component and a lower placing platform component, wherein the Golgin demonstration component and the feeding machine body component are both arranged on the upper side of the lower placing platform component, and the feeding machine body component is arranged on one side of the lower placing platform component.

The feeding machine body component comprises a bottom frame for fixing the upper side of a lower placing platform component, a feeding side frame is arranged on the upper side of the bottom frame, two rotating shafts penetrate through the inner surface of the feeding side frame and are vertically and vertically arranged, a first gear is arranged on the surface of each rotating shaft on the upper side, a second gear is arranged on the surface of each rotating shaft on the lower side, a rotating handle is fixedly arranged at the outer end of each rotating shaft on the lower side, a chain is meshed with the surfaces of the first gear and the second gear together, the first gear and the second gear are connected through chain transmission, a frame body assembly is fixedly arranged on the surface of the side wall of the chain, a feeding frame component is rotatably arranged on the chain through the frame body assembly, an inclined blocking plate is fixedly arranged on the side wall of the feeding side frame and on the upper side of the feeding side frame, the side wall of the feeding side frame is fixedly provided with a goal sliding plate at the lower side of the inclined baffle plate, and the middle section of the upper surface of the bottom frame is fixedly provided with a forced balancing piece.

As a further scheme of the invention: the feeding frame component comprises a feeding frame main body, four side connecting rods are symmetrically arranged on the side wall of the feeding frame main body, an upper connecting rod is fixedly arranged between every two side connecting rods, guide wheel bosses are fixedly arranged on the upper sides of the two ends of each upper connecting rod, a guide wheel is rotatably arranged in each guide wheel boss, a steering hole is formed in the middle section of each upper connecting rod, and a feeding frame rotating rod is rotatably arranged on the two upper connecting rods through the steering holes;

the forced balance piece comprises a balance piece base body, and forced guide wheels are fixedly arranged at four corners of the upper surface of the balance piece base body.

As a further scheme of the invention: and the feeding frame rotating rod on the feeding frame component is arranged on the frame body assembly in a penetrating way.

As a further scheme of the invention: the Golgin demonstration component comprises a demonstration outer frame, a plurality of cylinders are fixedly arranged at the middle section of the inner surface of the demonstration outer frame, and a plurality of cylinders are uniformly arranged, a plurality of lower baffle plates are fixedly arranged on the inner surface of the demonstration outer frame and positioned at the lower side of the cylinders, the distance values between the adjacent lower baffle plates are equal, a bottom ball outlet sliding plate is arranged at the bottom of the demonstration outer frame, two sliding ball plates are symmetrically and fixedly arranged on the inner surface of the upper side of the demonstration outer frame, an inlet is arranged between the two sliding ball plates, an inlet blocking plate is arranged at the inlet in a penetrating way, a bottom blocking plate is arranged at the upper side position of the ball outlet sliding plate at the bottom of the lower side of the lower blocking plate in a sliding way, the upper side of the demonstration outer frame and the upper side of the sliding ball plate are provided with ball inlets, and a glass observation plate is fixedly arranged on the outer surface of the demonstration outer frame.

As a further scheme of the invention: the lower placing platform assembly comprises an upper mounting platform and a lower mounting platform, an upper turntable is rotatably arranged on the upper surface of the upper mounting platform, a plurality of connecting support columns are fixedly arranged at the bottom of the upper mounting platform, a lower mounting panel is fixedly arranged on the bottom surface of the connecting support columns, a micro-driving motor is fixedly arranged on the upper surface of the lower mounting panel, two sides of one side of the bottom of the upper mounting platform are rotatably connected with one end of a first rotating support rod, the other end of the first rotating support rod is rotatably provided with a rotating roller, a sliding groove is arranged on the surface of the upper mounting platform, which is deviated from the rotation of the first rotating support rod, a sliding groove is arranged at the same side of the lower mounting platform and the upper mounting platform, one end of the first rotating support rod, which is provided with the rotating roller, is slidably arranged in the sliding groove of the lower mounting, the one end both sides that lower mounting platform deviates from the spout all rotate with the one end of second rotation support bar and link to each other, the other end of second rotation support bar rotates and is provided with the rotation gyro wheel, the one end that second rotation support bar was provided with the rotation gyro wheel slides and sets up in the spout of last mounting platform, between two first rotation support bars and between two second rotation support bars all fixed be provided with the connecting rod, the upper surface middle side of mounting platform rotates with one side of driving hydraulic cylinder and links to each other down, it links to each other to rotate between the motion end of driving hydraulic cylinder and the connecting rod on the second rotation support bar.

As a further scheme of the invention: the central shaft side of the upper side rotary table is fixedly connected with the driving end of the micro driving motor through the coupler, and the micro driving motor is electrically connected with an external power supply.

As a further scheme of the invention: the height of the goal slide corresponds to the goal on the goldon demonstration assembly and the position of the bottom ball-out slide corresponds to the upper surface of the bottom frame.

As a further scheme of the invention: the using method comprises the following steps:

step S1: preparing a plurality of demonstration balls and stacking the demonstration balls at the ball inlet, wherein the inlet blocking plate and the bottom blocking plate are both in a blocking state, and the whole device is arranged at a required position;

step S2: the inlet blocking plate is pulled away, a plurality of demonstration balls fall into a compartment formed by a plurality of lower blocking plates from the inlet through a plurality of cylindrical positions, and after the spheres are completely finished, the demonstration distribution of the spheres is observed and recorded;

step S3: the bottom baffle plate is pulled away, the inside demonstration ball flows out from the Golgin demonstration assembly along the position of the ball outlet sliding plate at the bottom, flows into a cavity formed by the feeding side frame and the bottom frame, the rotating handle is rotated while the bottom baffle plate is pulled away, the rotating shaft is rotated, a first gear and a second gear on the rotating shaft are connected through meshing transmission of a chain, a plurality of feeding frame members arranged on the chain carry out digging operation on the demonstration balls in the feeding side frame and the bottom frame, the feeding frame members on the chain are driven to move along the rotating direction along with the rotation of the rotating handle, when the feeding frame members are in contact with the bottom of the inclined baffle plate at the upper side of the feeding side frame, the guide wheels limit the positions of the inclined baffle plate, and the inclined baffle plate is arranged in an inclined manner, so that the whole feeding frame members rotate and incline along the position of the feeding frame rotating rod, dumping the demonstration ball in the feeding frame component onto the ball inlet sliding plate, then demonstrating to flow to the ball inlet along the position of the ball inlet sliding plate, carrying out subsequent demonstration operation, and forcing the balance piece to integrally stabilize the feeding frame component which is rotated from the upper part and does not swing;

step S4: start drive hydraulic cylinder and miniature driving motor, miniature driving motor's start-up drives the rotation of upside carousel, and drive hydraulic cylinder's drive promotes the connecting rod position change to let first rotation bracing piece, second rotate the angle change of bracing piece relatively last mounting platform and lower mounting platform, and then let holistic height and angle change.

Advantageous effects

The invention provides a probability demonstration device. Compared with the prior art, the method has the following beneficial effects:

1. a probability demonstration device comprises a feeding machine body component, a feeding side frame is arranged on the upper side of the bottom frame, two rotating shafts are arranged on the inner surface of the feeding side frame in a penetrating mode and are vertically and vertically arranged, a first gear is arranged on the surface of the rotating shaft on the upper side, a second gear is arranged on the surface of the rotating shaft on the lower side, a rotating handle is fixedly arranged at the outer end of the rotating shaft on the lower side, a chain is meshed on the surfaces of the first gear and the second gear together, the first gear and the second gear are connected through chain transmission, a frame assembly is fixedly arranged on the surface of the side wall of the chain, a feeding frame component is rotatably arranged on the chain through the frame assembly, an inclined separation plate is fixedly arranged on the side wall of the feeding side frame and on the upper side of the feeding side frame, the fixed goal slide that is provided with of downside that lies in the slope baffler on the lateral wall of material loading side frame, the fixed compulsory balance piece that is provided with of upper surface middle part department of bottom frame, the transport operation about will demonstrating the ball through the displacement of material loading frame component in the material loading body subassembly, need not to let the spheroid carry the manual work, and simple structure, need not the external world and provide power, do not receive the external condition restriction, it mostly is personnel and carries out manual material loading after the completion to have solved its demonstration spheroid, long when influencing personnel's use, delay the teaching time, and manual transport mode is inefficient, the problem of inconvenient operation.

2. A probability demonstration device comprises an upper mounting platform and a lower mounting platform through a lower placing platform component, wherein an upper turntable is rotatably arranged on the upper surface of the upper mounting platform, a plurality of connecting support columns are fixedly arranged at the bottom of the upper mounting platform, a lower mounting panel is fixedly arranged on the bottom surfaces of the connecting support columns, a micro-driving motor is fixedly arranged on the upper surface of the lower mounting panel, two sides of one side of the bottom of the upper mounting platform are rotatably connected with one end of a first rotating support rod, the other end of the first rotating support rod is rotatably provided with a rotating roller, a sliding groove is formed in the surface of the upper mounting platform, which is far away from the rotation of the first rotating support rod, a sliding groove is formed in the same side of the lower mounting platform and the upper mounting platform, one end of the first rotating support rod, which is provided with the rotating roller, is slidably arranged in the sliding groove of the lower mounting platform, two sides of one end of the, the other end of second rotation support bar rotates and is provided with the rotation gyro wheel, the second rotation support bar is provided with the one end slip setting of rotation gyro wheel in the spout of last mounting platform, all fixed the connecting rod that is provided with between two first rotation support bars and between two second rotation support bars, the upper surface middle side of lower mounting platform rotates with one side of driving hydraulic cylinder and links to each other, it links to each other to rotate between the motion end of driving hydraulic cylinder and the connecting rod on the second rotation support bar, rotatory rise through upside carousel and last mounting platform, when letting the device can carry out the angular rotation, can carry out the height, make things convenient for outside personnel to observe, it is rotatory to have solved the regulation that satisfies the angle when its presentation device can not carry out height control, the flexibility is relatively poor, the problem of inconvenient study personnel.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic diagram of a Golgin demonstration assembly according to the present invention;

FIG. 3 is a rear side schematic view of a Golgin demonstration assembly according to the present invention;

FIG. 4 is a schematic structural diagram of a feeding machine body assembly according to the present invention;

FIG. 5 is a schematic view of the internal structure of the feeding machine body assembly according to the present invention;

FIG. 6 is a schematic view of the internal front side structure of the feeding machine body assembly according to the present invention;

FIG. 7 is an enlarged view of the structure at A in FIG. 5;

FIG. 8 is a schematic view of a forced balancing member according to the present invention;

FIG. 9 is a schematic view of the lower placement platform assembly of the present invention;

FIG. 10 is a bottom view of the lower placement platform assembly of the present invention.

In the figure: 1. a Golgin demonstration component; 11. a ball board; 12. a demonstration outer frame; 13. a cylinder; 14. a lower barrier plate; 15. a bottom ball discharging sliding plate; 16. an inlet port; 17. a bottom barrier panel; 18. a ball inlet; 19. an inlet baffle plate; 2. a feeding machine body assembly; 21. a feeding side frame; 22. an inclined baffle plate; 23. a feeding frame member; 231. a guide wheel; 232. a guide wheel boss; 233. an upper connecting rod; 234. a side connecting rod; 235. a feeding frame main body; 236. a steering hole; 237. a feeding frame rotating rod; 24. a goal slide plate; 25. a bottom frame; 26. a forced balancing member; 261. a balance member base; 262. a forced guide wheel; 27. rotating the handle; 28. rotating the rotating shaft; 29. a chain; 210. a frame assembly; 211. a first gear; 212. a second gear; 3. a lower placement platform assembly; 31. an upper turntable; 32. an upper mounting platform; 33. a micro drive motor; 34. connecting the supporting columns; 35. a panel is arranged at the lower side; 36. a connecting rod; 37. a first rotating support rod; 38. a second rotary support rod; 39. driving the hydraulic cylinder; 310. a lower mounting platform; 311. a chute; 312. the roller is rotated.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, the present invention provides a technical solution: a probability demonstration device comprises a Golgin demonstration component 1, a feeding machine body component 2 and a lower placing platform component 3, wherein the Golgin demonstration component 1 and the feeding machine body component 2 are both arranged on the upper side of the lower placing platform component 3, and the feeding machine body component 2 is arranged on one side of the lower placing platform component 3;

referring to fig. 4-8, the feeding machine body assembly 2 includes a bottom frame 25 for fixing the upper side of the lower placing platform assembly 3, a feeding side frame 21 is disposed on the upper side of the bottom frame 25, two rotating shafts 28 are disposed on the inner surface of the feeding side frame 21, and the two rotating shafts 28 are vertically disposed, a first gear 211 is disposed on the surface of the rotating shaft 28, a second gear 212 is disposed on the surface of the rotating shaft 28, a rotating handle 27 is fixedly disposed at the outer end of the rotating shaft 28, a chain 29 is engaged with the surfaces of the first gear 211 and the second gear 212, the first gear 211 and the second gear 212 are connected by the chain 29, a frame assembly 210 is fixedly disposed on the surface of the sidewall of the chain 29, a feeding frame member 23 is rotatably disposed on the chain 29 by the frame assembly 210, and an inclined blocking plate 22 is fixedly disposed on the sidewall of the feeding side frame 21 and on the upper side of the feeding side frame 21 A ball inlet sliding plate 24 is fixedly arranged on the side wall of the feeding side frame 21 and positioned at the lower side of the inclined baffle plate 22, a forced balancing piece 26 is fixedly arranged at the middle section of the upper surface of the bottom frame 25, the height value of the ball inlet sliding plate 24 corresponds to the ball inlet 18 on the Golgin demonstration assembly 1, and the position of the bottom ball outlet sliding plate 15 corresponds to the upper side surface of the bottom frame 25.

Referring to fig. 4-8, the feeding frame member 23 includes a feeding frame main body 235, four side connecting rods 234 are symmetrically disposed on a side wall of the feeding frame main body 235, an upper connecting rod 233 is fixedly disposed between every two side connecting rods 234, guide wheel bosses 232 are fixedly disposed on upper sides of two ends of the upper connecting rod 233, a guide wheel 231 is rotatably disposed inside each guide wheel boss 232, a turning hole 236 is disposed at a middle section of each upper connecting rod 233, a feeding frame rotating rod 237 is rotatably disposed on the two upper connecting rods 233 through the turning hole 236, the forced balance 26 includes a balance base 261, forced guide wheels 262 are fixedly disposed at four corners of an upper surface of the balance base 261, and the feeding frame rotating rod 237 on the feeding frame member 23 is disposed on the frame assembly 210 in a penetrating manner.

Referring to fig. 2-3, the goldon demonstration assembly 1 comprises a demonstration housing 12, a plurality of cylinders 13 fixedly provided at the middle section of the inner surface of the demonstration housing 12, and a plurality of cylinders 13 are evenly arranged, the inside surface of demonstration frame 12 is and the downside that is located cylinder 13 is fixed and is provided with a plurality of lower barrier plates 14, the interval value between adjacent lower barrier plates 14 equals, the bottom department of demonstration frame 12 is provided with bottom play ball slide 15, the inside surface symmetry of the upside of demonstration frame 12 is fixed and is provided with two slide ball plates 11, establish to inlet port 16 between two slide ball plates 11, inlet port 16 department runs through and is provided with import barrier plate 19, the upside position department of the downside bottom play ball slide 15 of lower barrier plate 14 slides and is provided with bottom barrier plate 17, the upside of demonstration frame 12 is and the upside that is located slide ball plate 11 establishes to goal 18, the fixed glass that is provided with on the outside surface of demonstration frame 12 observes the board.

Referring to fig. 9-10, the lower platform assembly 3 includes an upper mounting platform 32 and a lower mounting platform 310, an upper turntable 31 is rotatably disposed on the upper surface of the upper mounting platform 32, a plurality of connecting pillars 34 are fixedly disposed at the bottom of the upper mounting platform 32, a lower mounting panel 35 is fixedly disposed on the bottom surface of the connecting pillars 34, a micro-driving motor 33 is fixedly disposed on the upper surface of the lower mounting panel 35, both sides of one side of the bottom of the upper mounting platform 32 are rotatably connected to one end of a first rotating support rod 37, the other end of the first rotating support rod 37 is rotatably disposed with a rotating roller 312, a sliding slot 311 is disposed on the surface of the upper mounting platform 32 that is away from the rotation of the first rotating support rod 37, a sliding slot 311 is disposed at the same side of the lower mounting platform 310 and the upper mounting platform 32, one end of the first rotating support rod 37 having the rotating roller 312 is slidably disposed in the sliding slot 311 of the lower mounting platform 310, lower mounting platform 310 deviates from the one end both sides of spout 311 and all rotates with the one end of second rotation support rod 38 and link to each other, the other end of second rotation support rod 38 rotates and is provided with rotation gyro wheel 312, the one end that second rotation support rod 38 was provided with rotation gyro wheel 312 slides and sets up in the spout 311 of last mounting platform 32, all fixed connecting rod 36 that is provided with between two first rotation support rods 37 and between two second rotation support rods 38, the upper surface middle side of lower mounting platform 310 rotates with one side of driving hydraulic cylinder 39 and links to each other, it links to each other to rotate between the motion end of driving hydraulic cylinder 39 and the connecting rod 36 on the second rotation support rod 38, fixed linking to each other between the central axis side of upside carousel 31 passes through the shaft coupling and the drive end of micro-drive motor 33, electric connection between micro-drive motor 33.

The probability demonstration device comprises the following steps:

step S1: preparing a plurality of demonstration balls and stacking the demonstration balls at the ball inlet 18, wherein the inlet blocking plate 19 and the bottom blocking plate 17 are both in a blocking state, and the whole device is arranged at a required position;

step S2: the inlet blocking plate 19 is pulled away, a plurality of demonstration balls fall into a compartment formed by a plurality of lower blocking plates 14 from the inlet 16 through the positions of the cylinders 13, and after the spheres are completely finished, the demonstration distribution of the spheres is observed and recorded;

step S3: the bottom blocking plate 17 is pulled away, the demonstration ball inside flows out from the Golgin demonstration assembly 1 along the position of the bottom ball outlet sliding plate 15, flows into the cavity formed by the feeding side frame 21 and the bottom frame 25, the rotating handle 27 is rotated while the demonstration ball is pulled away from the bottom blocking plate 17, the rotating shaft 28 is rotated, the first gear 211 and the second gear 212 on the rotating shaft 28 are connected through the meshing transmission of the chain 29, the plurality of feeding frame members 23 arranged on the chain 29 carry out digging operation on the demonstration balls in the feeding side frame 21 and the bottom frame 25, the feeding frame members 23 on the chain 29 are driven to move along the rotating direction along with the rotation of the rotating handle 27, when the feeding frame members 23 are contacted with the bottoms of the inclined blocking plates 22 on the upper side of the feeding side frame 21, the guide wheels 231 limit the positions of the inclined blocking plates 22, and the inclined blocking plates 22 are obliquely arranged, the whole feeding frame member 23 rotates and inclines along the position of the feeding frame rotating rod 237, the demonstration ball in the feeding frame member 23 is poured onto the ball inlet sliding plate 24, then the demonstration ball flows to the ball inlet 18 along the position of the ball inlet sliding plate 24, the subsequent demonstration operation is carried out, and the balance piece 26 is forced to stabilize the feeding frame member 23 which rotates from the upper part and swings variably;

step S4: the driving hydraulic cylinder 39 and the micro driving motor 33 are started, the micro driving motor 33 is started to drive the upper turntable 31 to rotate, the driving hydraulic cylinder 39 is driven to push the connecting rod 36 to change the position, so that the angles of the first rotating support rod 37 and the second rotating support rod 38 relative to the upper mounting platform 32 and the lower mounting platform 310 are changed, and the height and the angle of the whole body are changed.

When the demonstration ball feeding device is used, a plurality of demonstration balls are prepared and stacked at the ball inlet 18, the states of the inlet blocking plate 19 and the bottom blocking plate 17 are both in a blocking state, the device is integrally arranged at a required position, the inlet blocking plate 19 is pulled away, the demonstration balls fall into a compartment consisting of a plurality of lower blocking plates 14 from the inlet 16 through the positions of a plurality of cylinders 13, after all the demonstration balls are finished, the demonstration distribution of the balls is observed and recorded, the bottom blocking plate 17 is pulled away, the internal demonstration balls flow out from the Golgin demonstration assembly 1 along the position of the bottom ball outlet sliding plate 15 and flow into a cavity consisting of the feeding side frame 21 and the bottom frame 25, the rotation handle 27 is rotated while the bottom blocking plate 17 is pulled away, the rotation rotating shaft 28 is rotated, the first gear 211 and the second gear 212 on the rotation shaft 28 are connected through meshing transmission of the chain 29, the plurality of feeding frame members 23 arranged on the chain 29 dig the demonstration balls in the feeding side frame 21 and the bottom frame 25, the feeding frame members 23 on the chain 29 are driven to move along the rotating direction along with the rotation of the rotating handle 27, when the feeding frame members 23 contact with the bottom of the inclined baffle plate 22 at the upper side of the feeding side frame 21, the guide wheels 231 limit the positions of the feeding frame members, the inclined baffle plate 22 is arranged in an inclined manner, the whole feeding frame members 23 rotate and incline along the position of the feeding frame rotating rod 237, the demonstration balls in the feeding frame members 23 are poured onto the ball inlet sliding plate 24, then the demonstration balls flow to the ball inlet 18 along the position of the ball inlet sliding plate 24, the subsequent demonstration operation is carried out, the balance 26 is forced to stabilize the whole feeding frame members 23 which are rotated from the upper side, the driving hydraulic cylinder 39 and the micro-driving motor 33 are started, the start-up of miniature driving motor 33 drives the rotation of upside carousel 31, the drive of drive hydraulic cylinder 39 promotes connecting rod 36 position change, thereby let first rotation bracing piece 37, the relative angle change of last mounting platform 32 and lower mounting platform 310 of second rotation bracing piece 38, and then let holistic height and angle change, carry out transport operation about the demonstration ball through the displacement of material loading frame member 23 in material loading body subassembly 2, need not to let the spheroid carry the manual work, and simple structure, need not the external world and provide power, do not receive the external condition restriction, rise through the rotation of upside carousel 31 and last mounting platform 32, when letting the device can carry out the angular rotation, can carry out the height, make things convenient for outside personnel to observe.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation and a specific orientation configuration and operation, and thus, should not be construed as limiting the present invention. Furthermore, "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

Claims

1. A probability demonstration device comprises a Golgin demonstration component (1), a feeding machine body component (2) and a lower placing platform component (3), and is characterized in that: the Golgin demonstration assembly (1) and the feeding machine body assembly (2) are both arranged on the upper side of the lower placing platform assembly (3), and the feeding machine body assembly (2) is arranged on one side of the lower placing platform assembly (3);

the feeding machine body assembly (2) comprises a bottom frame (25) for fixing the upper side of a lower placing platform assembly (3), a feeding side frame (21) is arranged on the upper side of the bottom frame (25), two rotating shafts (28) penetrate through the inner surface of the feeding side frame (21), the two rotating shafts (28) are vertically arranged, a first gear (211) is arranged on the surface of the rotating shaft (28) on the upper side, a second gear (212) is arranged on the surface of the rotating shaft (28) on the lower side, a rotating handle (27) is fixedly arranged at the outer end of the rotating shaft (28) on the lower side, a chain (29) is meshed with the surfaces of the first gear (211) and the second gear (212) together, and the first gear (211) and the second gear (212) are in transmission connection through the chain (29), the fixed framework sub-assembly (210) that is provided with on the lateral wall surface of chain (29), chain (29) rotate through framework sub-assembly (210) and are provided with material loading frame member (23), on the lateral wall of material loading side frame (21) and the fixed slope baffler (22) that is provided with of upside of material loading side frame (21), the downside that lies in slope baffler (22) on the lateral wall of material loading side frame (21) is fixed and is provided with goal slide (24), the fixed balanced piece (26) of forcing of the upper surface middle section department of bottom frame (25).

2. A probability demonstration apparatus as claimed in claim 1, wherein: the feeding frame member (23) comprises a feeding frame main body (235), four side connecting rods (234) are symmetrically arranged on the side wall of the feeding frame main body (235), an upper connecting rod (233) is fixedly arranged between every two side connecting rods (234), guide wheel bosses (232) are fixedly arranged on the upper sides of the two ends of each upper connecting rod (233), a guide wheel (231) is rotatably arranged in each guide wheel boss (232), a steering hole (236) is formed in the middle section of each upper connecting rod (233), and a feeding frame rotating rod (237) is rotatably arranged on the two upper connecting rods (233) through the steering hole (236);

the forced balance piece (26) comprises a balance piece base body (261), and forced guide wheels (262) are fixedly arranged at four corners of the upper surface of the balance piece base body (261).

3. A probability demonstration apparatus according to claim 2, wherein: the feeding frame rotating rod (237) on the feeding frame member (23) is arranged on the frame body assembly (210) in a penetrating way.

4. A probability demonstration apparatus as claimed in claim 1, wherein: the Golgin demonstration assembly (1) comprises a demonstration outer frame (12), a plurality of cylinders (13) are fixedly arranged at the middle section of the inner surface of the demonstration outer frame (12), the cylinders (13) are uniformly arranged, a plurality of lower baffle plates (14) are fixedly arranged on the inner surface of the demonstration outer frame (12) and positioned at the lower sides of the cylinders (13), the distance values between the adjacent lower baffle plates (14) are equal, a bottom ball outlet sliding plate (15) is arranged at the bottom of the demonstration outer frame (12), two sliding ball plates (11) are symmetrically and fixedly arranged on the inner surface of the upper side of the demonstration outer frame (12), an inlet (16) is arranged between the two sliding ball plates (11), an inlet baffle plate (19) is arranged at the position of the upper side of the ball outlet sliding plate (15) at the bottom of the lower baffle plate (14) in a penetrating manner, a bottom baffle plate (17) is arranged at the position of the upper side of the ball, the upper side of the demonstration outer frame (12) and the upper side of the sliding ball plate (11) are provided with ball inlets (18), and a glass observation plate is fixedly arranged on the outer surface of the demonstration outer frame (12).

5. A probability demonstration apparatus as claimed in claim 1, wherein: the lower placing platform assembly (3) comprises an upper mounting platform (32) and a lower mounting platform (310), an upper side turntable (31) is rotatably arranged on the surface of the upper side of the upper mounting platform (32), a plurality of connecting pillars (34) are fixedly arranged at the bottom of the upper mounting platform (32), a lower side mounting panel (35) is fixedly arranged on the surface of the bottom of the connecting pillars (34), a micro driving motor (33) is fixedly arranged on the upper surface of the lower side mounting panel (35), two sides of one side of the bottom of the upper mounting platform (32) are rotatably connected with one end of a first rotating supporting rod (37), a rotating roller (312) is rotatably arranged at the other end of the first rotating supporting rod (37), a sliding groove (311) is formed in the surface of one side of the upper mounting platform (32) which deviates from the rotation of the first rotating supporting rod (37), the same side of the lower mounting platform (310) and the upper mounting platform (32) is provided with a sliding groove (311), one end of the first rotating support rod (37) provided with a rotating roller (312) is arranged in the sliding groove (311) of the lower mounting platform (310) in a sliding manner, two sides of one end of the lower mounting platform (310) departing from the sliding groove (311) are respectively connected with one end of the second rotating support rod (38) in a rotating manner, the other end of the second rotating support rod (38) is provided with a rotating roller (312) in a rotating manner, one end of the second rotating support rod (38) provided with a rotating roller (312) is arranged in the sliding groove (311) of the upper mounting platform (32) in a sliding manner, connecting rods (36) are fixedly arranged between the two first rotating support rods (37) and between the two second rotating support rods (38), the middle side of the upper surface of the lower mounting platform (310) is connected with one side of a driving hydraulic cylinder (, the moving end of the driving hydraulic cylinder (39) is rotationally connected with a connecting rod (36) on a second rotating supporting rod (38).

6. A probability demonstration apparatus as claimed in claim 5, wherein: the central shaft side of the upper side rotary table (31) is fixedly connected with the driving end of the micro driving motor (33) through a coupler, and the micro driving motor (33) is electrically connected with an external power supply.

7. A probability demonstration apparatus as claimed in claim 1, wherein: the height value of the goal slide (24) corresponds to the goal (18) on the Golgin demonstration assembly (1), and the position of the bottom ball-out slide (15) corresponds to the upper surface of the bottom frame (25).

8. A probability demonstration apparatus as claimed in claim 1, wherein: the using method comprises the following steps:

step S1: preparing a plurality of demonstration balls and stacking the demonstration balls at a ball inlet (18), wherein the inlet blocking plate (19) and the bottom blocking plate (17) are both in a blocking state, and the whole device is arranged at a required position;

step S2: the inlet blocking plate (19) is pulled away, a plurality of demonstration balls fall into a compartment formed by a plurality of lower blocking plates (14) from the inlet (16) through the positions of a plurality of cylinders (13), and after all the balls are finished, the demonstration distribution of the balls is observed and recorded;

step S3: the bottom blocking plate (17) is pulled away, the demonstration balls in the demonstration ball flow out of the Golgin demonstration assembly (1) along the position of the bottom ball outlet sliding plate (15) and flow into a cavity formed by the feeding side frame (21) and the bottom frame (25), the rotating handle (27) is rotated while the demonstration balls are pulled away from the bottom blocking plate (17), the rotating shaft (28) is rotated, the first gear (211) and the second gear (212) on the rotating shaft (28) are connected through the meshing transmission of the chain (29), a plurality of feeding frame members (23) arranged on the chain (29) are used for digging the demonstration balls in the feeding side frame (21) and the bottom frame (25), the feeding frame members (23) on the chain (29) are driven to move along the rotating direction along with the rotation of the rotating handle (27), and when the feeding frame members (23) are contacted with the bottom of the inclined blocking plate (22) on the upper side of the feeding side frame (21), the guide wheel (231) limits the position of the upper material frame component, the inclined blocking plate (22) is arranged in an inclined manner, the whole upper material frame component (23) rotates and inclines along the position of the rotating rod (237) of the upper material frame, demonstration balls in the upper material frame component (23) are poured onto the ball inlet sliding plate (24), then the demonstration balls flow to the ball inlet (18) along the position of the ball inlet sliding plate (24) for subsequent demonstration operation, and the balance piece (26) is forced to stabilize the feeding frame component (23) which rotates from the upper side and does not swing;

step S4: start drive hydraulic cylinder (39) and miniature driving motor (33), the rotation of upside carousel (31) is driven in the start-up of miniature driving motor (33), and the drive of drive hydraulic cylinder (39) promotes connecting rod (36) position change to let first rotation bracing piece (37), second rotation bracing piece (38) go up mounting platform (32) and lower mounting platform (310)'s angle change relatively, and then let holistic height and angle change.