CN210166993U

CN210166993U - Mathematical random probability statistical model

Info

Publication number: CN210166993U
Application number: CN201920191850.2U
Authority: CN
Inventors: 王九福; 李伟欣; 姜晓; 郭丽华; 杨婷婷
Original assignee: Shandong Business Institute
Current assignee: Shandong Business Institute
Priority date: 2019-02-12
Filing date: 2019-02-12
Publication date: 2020-03-20
Anticipated expiration: 2029-02-12

Abstract

The utility model discloses a mathematics random probability statistics model, concretely relates to probability statistics technical field, the on-line screen storage device comprises a base, the ring channel has been seted up on the base, be equipped with the division board in the ring channel, the quantity of division board sets up to a plurality of, adjacent two be equipped with the collecting vat between the division board, the base top is equipped with the conical seat, conical seat outer wall cover is equipped with the annular slab, the conical seat top is equipped with the bearing, it has the rotation axis to peg graft in the bearing, the rotation axis top is equipped with places the case, place the bottom half and seted up the small opening. The utility model discloses an utilize rotatory case of placing and offering the small opening placing the bottom half, the ball that makes to place can fall on the outer wall of toper seat from the small opening of different positions at random to through the regulation of annular plate, make the random uncontrollable of the drop point of ball, can carry out random probability statistics, guaranteed random probability statistics's validity.

Description

Mathematical random probability statistical model

Technical Field

The utility model relates to a probability statistics technical field, more specifically says, the utility model relates to a mathematical random probability statistics model.

Background

The mathematical probability statistics is that an objective scientific judgment is made on the probability of a certain result of a random phenomenon according to the statistical rule of a large number of similar random phenomena, and the occurrence probability is quantitatively described; comparing the sizes of these possibilities, and studying the relationship between them, a whole set of mathematical theories and methods is formed.

The existing mathematical probability statistical models comprise coin positive and negative statistical probability and normal distribution statistical probability models, however, the probability statistical model for a large number of random variables does not exist at present, the large number of random variables can be more intuitively counted, and the learning interest of students can be favorably cultivated.

SUMMERY OF THE UTILITY MODEL

In order to overcome the above-mentioned defect of prior art, the embodiment of the utility model provides a mathematical random probability statistics model, through utilizing rotatory case of placing and offering the small opening placing the bottom half, the ball that makes to place can fall on the outer wall of toper seat from the small opening of different positions at random to through the regulation of annular plate, the drop point that makes the ball is uncontrollable at random, can carry out random probability statistics, guaranteed random probability statistics's validity.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a mathematical random probability statistical model, includes the base, the ring channel has been seted up on the base, be equipped with the division board in the ring channel, the quantity of division board sets up to a plurality ofly, adjacent two be equipped with the collecting vat between the division board, the base top is equipped with the toper seat, toper seat outer wall cover is equipped with the annular slab, the toper seat top is equipped with the bearing, it has the rotation axis to peg graft in the bearing, the rotation axis top is equipped with places the case, it has seted up the small opening to place the bottom half.

In a preferred embodiment, the annular groove, the collecting groove and the base are integrally arranged, the plurality of partition plates are sequentially and uniformly arranged inside the annular groove, the number of the collecting grooves is multiple, and the sizes of the plurality of collecting grooves are the same.

In a preferred embodiment, the conical seat is internally vacuum-arranged, and the conical seat is made of an aluminum alloy material.

In a preferred embodiment, the number of the annular plates is provided in plurality, the annular plates are sequentially and uniformly arranged on the outer wall of the conical seat, and the inner diameters of the annular plates are sequentially increased from top to bottom.

In a preferred embodiment, the placing box is fixedly arranged at the top end of the rotating shaft, the placing box is movably connected with the conical seat through the rotating shaft and a bearing, and the cross section of the placing box is in an isosceles trapezoid shape.

In a preferred embodiment, the number of the leak holes is multiple and the leak holes are the same, the leak holes are arranged right above the top of the inclined outer wall of the conical seat, and the bottom of the placing box is arranged in a protruding manner.

The utility model discloses a technological effect and advantage:

1. the ball placing device has the advantages that the placed balls can randomly fall on the outer wall of the conical seat from the leak holes in different positions by utilizing the rotary placing box and arranging the leak holes at the bottom of the placing box, the falling points of the balls are randomly uncontrollable through adjustment of the annular plate, random probability statistics can be carried out, and the effectiveness of the random probability statistics is guaranteed;

2. the continuous rotation of accessible is placed the case and is placed the ball, can realize quick experiment and observation to utilize the collecting vat to realize quick collection, its convenient to use is convenient for make statistics of, makes random probability simple more high-efficient when making a large amount of statistics.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic top view of the present invention.

Fig. 3 is a schematic cross-sectional view taken along a-a in fig. 2 according to the present invention.

The reference signs are: the device comprises a base 1, an annular groove 2, a separation plate 3, a collecting groove 4, a conical seat 5, an annular plate 6, a bearing 7, a rotating shaft 8, a placing box 9 and a leak hole 10.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model provides a mathematical random probability statistics model as shown in fig. 1-3, the on-line screen storage device comprises a base 1, ring channel 2 has been seted up on the base 1, be equipped with division board 3 in the ring channel 2, division board 3's quantity sets up to a plurality of, adjacent two be equipped with collecting vat 4 between the division board 3, base 1 top is equipped with

conical seat

5, 5 outer wall covers of conical seat are equipped with

annular slab

6, 5 tops of conical seat are equipped with bearing 7, it has rotation axis 8 to peg graft in the

bearing

7, 8 tops of rotation axis are equipped with places case 9, place case 9 bottoms and seted up small opening 10.

Further, ring channel 2, collecting vat 4 and base 1 integration set up, and are a plurality of division board 3 evenly sets up in the inside of ring channel 2 in proper order, the quantity of collecting vat 4 sets up to a plurality of, and is a plurality of the size homogeneous phase of collecting vat 4 is the same.

Further, the conical seat 5 is arranged in a vacuum mode, and the conical seat 5 is made of an aluminum alloy material.

Further, the number of the annular plates 6 is set to be a plurality, the annular plates 6 are sequentially and uniformly arranged on the outer wall of the conical seat 5, and the inner diameters of the annular plates 6 are sequentially increased from top to bottom.

Further, place case 9 and fix and set up in the top of rotation axis 8, place case 9 through rotation axis 8 and bearing 7 and toper seat 5 swing joint, the cross-section of placing case 9 sets up to isosceles trapezoid.

Further, the quantity of weeping hole 10 sets up to a plurality of and the size is the same, and is a plurality of weeping hole 10 sets up directly over toper seat 5 slope outer wall top, it is protruding setting to place 9 bottoms of case.

The utility model discloses the theory of operation:

referring to the attached drawings 1-3 of the specification, during operation, a ball corresponding to the diameter of a leak hole 10 is selected, the placing box 9 is rotated by hands, the placing box 9 is made to automatically pass through the top of the conical seat 5 by the inertia of acting force through a rotating shaft 8 arranged at the bottom of the placing box 9 and a bearing 7 arranged at the bottom end of the rotating shaft 8, then the ball is placed in the placing box 9, the ball slowly descends on the inner wall of the placing box 9 under the rotating force of the placing box 9 after falling into the placing box 9, the placing box 9 stops rotating slowly due to the inertia of the placing rotation, at the moment, the ball falls from the leak hole 10 formed at the bottom of the placing box 9, falls on the outer wall of the conical seat 5, and randomly falls into a collecting tank 4 formed on the base 1 after being adjusted by a plurality of annular plates 6 in sequence, the falling position of the ball is counted by utilizing the falling of the ball for a plurality of times, accomplish the statistics to random probability incident, the case 9 is placed in the continuous rotation of accessible and the ball is placed, can realize quick experiment and observation, and can realize quick collection, its convenient to use, easy operation is convenient for make statistics of.

The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;

secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are referred to, and other structures can refer to the common design, and under the condition of no conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

and finally: the above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A mathematical stochastic probabilistic statistical model comprising a base (1), characterized in that: the improved structure of the oil filter is characterized in that the annular groove (2) is formed in the base (1), the partition boards (3) are arranged in the annular groove (2), the number of the partition boards (3) is set to be a plurality of and adjacent two, the collecting groove (4) is formed between the partition boards (3), the top of the base (1) is provided with the conical seat (5), the outer wall of the conical seat (5) is sleeved with the annular board (6), the top of the conical seat (5) is provided with the bearing (7), the rotating shaft (8) is inserted in the bearing (7), the top of the rotating shaft (8) is provided with the placing box (9), and the bottom of the placing box (9) is provided.

2. A mathematical stochastic probability statistical model as claimed in claim 1, wherein: annular groove (2), collecting vat (4) and base (1) integration set up, and is a plurality of division board (3) evenly set up in the inside of annular groove (2) in proper order, the quantity of collecting vat (4) sets up to a plurality of, and is a plurality of the size homogeneous phase of collecting vat (4) is the same.

3. A mathematical stochastic probability statistical model as claimed in claim 1, wherein: the conical seat (5) is arranged in a vacuum mode, and the conical seat (5) is made of an aluminum alloy material.

4. A mathematical stochastic probability statistical model as claimed in claim 1, wherein: the number of the annular plates (6) is set to be a plurality of, the annular plates (6) are sequentially and uniformly arranged on the outer wall of the conical seat (5), and the inner diameters of the annular plates (6) are sequentially increased from top to bottom.

5. A mathematical stochastic probability statistical model as claimed in claim 1, wherein: the placing box (9) is fixedly arranged at the top end of the rotating shaft (8), the placing box (9) is movably connected with the conical seat (5) through the rotating shaft (8) and the bearing (7), and the cross section of the placing box (9) is in an isosceles trapezoid shape.

6. A mathematical stochastic probability statistical model as claimed in claim 1, wherein: the quantity of small opening (10) sets up to a plurality of and the size is the same, and is a plurality of small opening (10) set up directly over toper seat (5) slope outer wall top, place case (9) bottom and be protruding setting.