CN209895613U

CN209895613U - Mathematical random probability statistical model

Info

Publication number: CN209895613U
Application number: CN201920404564.XU
Authority: CN
Inventors: 程慧燕; 吴秀才; 陈凤华; 孙海燕; 杜明银
Original assignee: Zhengzhou Business College
Current assignee: Zhengzhou Business College
Priority date: 2019-03-27
Filing date: 2019-03-27
Publication date: 2020-01-03
Anticipated expiration: 2029-03-27

Abstract

The utility model discloses a mathematical random probability statistical model, the power distribution box comprises a box body, be equipped with the opening on a lateral wall of box, sealed fixedly connected with glass board in the opening, launch the track with right side inner wall fixedly connected with arc in the box, the arc launches the track and is equipped with ejection mechanism, the orbital exit of arc ejection is equipped with a plurality of spacer blocks that are pyramid distribution, and is a plurality of the crisscross setting of spacer block, the box lower extreme is equipped with a plurality of exports, and is a plurality of the export corresponds with a plurality of standing groove positions that a plurality of spacer blocks of downside formed respectively, be equipped with the closing mechanism who seals a plurality of exports on the box, one side that the glass board was kept away from to the box is equipped with supporting mechanism, be equipped with the import that corresponds with ejection mechanism position on the glass. The utility model discloses rational in infrastructure, through planar show, can observe directly perceivedly and study the random probability of mathematics, the statistics record of being convenient for simultaneously.

Description

Mathematical random probability statistical model

Technical Field

The utility model relates to a probability statistics technical field especially 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.

Through retrieval, the Chinese patent No. CN206672463U discloses a statistical model, which comprises a cone, wherein a plurality of clapboards are uniformly distributed on the cone, and a slideway is arranged between the clapboards; the variable ball body falls from the upper part of the cone body and randomly passes through the slide way on the cone body to carry out random data statistics, for the convenience of observation, a transparent shell is arranged outside the cone body, a channel is arranged at the top of the transparent shell, so that external factors can be removed, and a funnel is arranged above the channel, so that the variable ball body is convenient to put in; in order to facilitate the placement and the recovery of the variable ball body, the bottom of the transparent shell and the bottom of the cone are provided with detachable lower seats.

The existing statistical model has the following defects: the whole is non-planar, so that the experiment and statistics are inconvenient, and the falling process of all the small balls cannot be visually seen.

To this end, we propose a mathematical stochastic probabilistic statistical model to solve the above problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a mathematical random probability statistical model.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a mathematical random probability statistical model, includes the box, be equipped with the opening on a lateral wall of box, sealed fixedly connected with glass board in the opening, launch the track with right side inner wall fixedly connected with arc in the box, the arc launches the track and is equipped with ejection mechanism, the orbital exit of arc ejection is equipped with a plurality of spacer blocks that are pyramid distribution, and is a plurality of the spacer block is crisscross to be set up, the box lower extreme is equipped with a plurality of exports, and is a plurality of the export corresponds with a plurality of standing groove positions that a plurality of spacer blocks of downside formed respectively, be equipped with the closing mechanism who seals a plurality of exports on the box, one side that the glass board was kept away from to the box is equipped with supporting mechanism, be equipped with the import that corresponds with ejection mechanism position.

Preferably, the ejection mechanism comprises a sliding block arranged in the arc ejection track, the sliding block is in sliding contact with the arc ejection track, a pull rope is arranged between the sliding block and the inner bottom wall of the box body, one end of the pull rope is fixedly connected with the sliding block, the other end of the pull rope penetrates through the bottom wall of the box body and is fixedly connected with a pull ring, a spring is sleeved on the pull rope, one end of the spring is fixedly connected with the sliding block, and the other end of the spring is fixedly connected with the inner bottom wall of the box.

Preferably, the closing mechanism is including setting up the bar recess at the box up end, and a plurality of exports all communicate with the bar recess, the matching is equipped with the picture peg in the bar recess, outside picture peg one end extended to the bar recess, the contact surface fixedly connected with rubber layer of picture peg and box.

Preferably, the supporting mechanism comprises a supporting plate arranged on one side, far away from the glass plate, of the box body, the upper end of the supporting plate is rotatably connected with the box body, and a limiting mechanism for the supporting plate is arranged on the box body.

Preferably, stop gear includes and keeps away from glass board lateral wall fixed connection's spacing rope with the box, the one end that the box was kept away from to the spacing rope runs through backup pad and fixedly connected with spacing ball, be equipped with the rope clip between spacing ball and the backup pad, and the rope clip centre gripping is on the spacing rope.

Preferably, the lower end surface of the box body is provided with a receiving groove corresponding to the plurality of outlets.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the small balls are ejected through the ejection mechanism, pass through the arc ejection track to a plurality of spacing block positions distributed in a pyramid shape, and finally randomly stand in a placing groove formed by any two bottom side partition plates, so that a mathematical random probability statistical test is performed.

2. All operations of the whole device can be displayed in a planar mode, so that students can observe the tracks of all small balls more visually and test results, interestingness is achieved, and meanwhile, tests and statistics are carried out more conveniently.

Drawings

Fig. 1 is a schematic structural diagram of a mathematical random probability statistic model provided by the present invention;

fig. 2 is a schematic side view of a mathematical random probability statistic model according to the present invention;

fig. 3 is a schematic structural diagram at a in fig. 2.

In the figure: the device comprises a box body 1, a glass plate 2, an arc ejection track 3, an ejection mechanism 4, a spacer block 5, a sealing mechanism 6, a supporting mechanism 7, a sliding block 8, a pull rope 9, a pull ring 10, a spring 11, an insertion plate 12, a supporting plate 13, a limiting mechanism 14, a limiting rope 15, a limiting ball 16, a rope clamp 17 and a bearing groove 18.

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.

Referring to fig. 1-3, a mathematical random probability statistic model comprises a box body 1, an opening is arranged on one side wall of the box body 1, a glass plate 2 is fixedly connected in the opening in a sealing manner and can be observed while being sealed, an arc ejection track 3 is fixedly connected with the inner wall of the right side in the box body 1 and plays a role in guiding, an ejection mechanism 4 is arranged in the arc ejection track 3, the ejection mechanism 4 comprises a slide block 8 arranged in the arc ejection track 3, the slide block 8 is in sliding contact with the arc ejection track 3, a pull rope 9 is arranged between the slide block 8 and the inner bottom wall of the box body 1, one end of the pull rope 9 is fixedly connected with the slide block 8, the other end of the pull rope 9 penetrates through the bottom wall of the box body 1 and is fixedly connected with a pull ring 10, the pull ring 10 can drive the slide block 8 through the pull rope 9, a spring 11 is, the spring 11 provides elasticity to reset the slider 8.

A plurality of pyramid-shaped distributed spacing blocks 5 are arranged at the outlet of the arc-shaped ejection track 3, the spacing blocks 5 are arranged in a staggered way, can play and let the bobble drop at random, 1 lower extreme of box is equipped with a plurality of exports, a plurality of exports correspond with a plurality of groove positions of placing that a plurality of spacer blocks of downside 5 formed respectively, 1 terminal surface is equipped with the groove 18 of accepting that corresponds with a plurality of exports under the box, accept the bobble that the export falls, conveniently take, be equipped with the closing mechanism 6 that seals a plurality of exports on the box 1, closing mechanism 6 is including setting up the bar recess at 1 up end of box, a plurality of exports all communicate with the bar recess, it is equipped with picture peg 12 to match in the bar recess, picture peg 12 one end extends to outside the bar recess, picture peg 12 can play limiting displacement, it can make the bobble drop from the export to take picture peg 12 out, picture peg 12 and box 1's contact surface fixedly connected with rubber layer.

One side that glass board 2 was kept away from to box 1 is equipped with supporting mechanism 7, supporting mechanism 7 is including setting up backup pad 13 of keeping away from glass board 2 one side at box 1, backup pad 13 upper end is rotated with box 1 and is connected, backup pad 13 can support, be equipped with stop gear 14 to backup pad 13 on the box 1, stop gear 14 includes the spacing rope 15 of keeping away from glass board 2 lateral wall fixed connection with box 1, the one end that box 1 was kept away from to spacing rope 15 runs through backup pad 13 and fixedly connected with spacing ball 16, avoid spacing rope 15 to drop, be equipped with rope clip 17 between spacing ball 16 and backup pad 13, and rope clip 17 centre gripping is on spacing rope 15, rope clip 17 can change the length of spacing rope 15 between backup pad 13 and the box 1, make the inclination of box 1 change, be equipped with the import that corresponds with ejection mechanism 4 positions on the glass board 2, can put the bobble.

The utility model discloses in, drive stay cord 9 through pull ring 10, stay cord 9 drives slider 8 and removes to the import downside, put into box 1 with arbitrary a bobble from the import, then loosen pull ring 10, slider 8 resets rapidly under spring 11's effect, thereby pop out the bobble, the bobble launches track 3 to a plurality of 5 positions that are the spacer block that the pyramid distributes along the arc, last bobble is static at random in the standing groove of two arbitrary spacer block 5 formation of downside, after the multiple operation, then make statistics of, take out picture peg 12, then the bobble drops to accepting in the groove 18 from the export, when experimental, can remove the length that rope clip 17 changes the rope between backup pad 13 and the box 1, thereby change box 1's inclination.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The mathematical random probability statistical model comprises a box body (1) and is characterized in that an opening is formed in one side wall of the box body (1), a glass plate (2) is fixedly connected with the opening in a sealing mode, an arc ejection track (3) is fixedly connected with the inner wall of the right side in the box body (1), an ejection mechanism (4) is arranged in the arc ejection track (3), a plurality of separation blocks (5) distributed in a pyramid mode are arranged at the outlet of the arc ejection track (3), the separation blocks (5) are arranged in a staggered mode, a plurality of outlets are formed in the lower end of the box body (1) and correspond to a plurality of placing grooves formed by a plurality of separation blocks (5) at the lowest side respectively, a sealing mechanism (6) for sealing the outlets is arranged on the box body (1), and a supporting mechanism (7) is arranged on one side, far away from the glass plate (2), of the box body (1), and the glass plate (2) is provided with an inlet corresponding to the ejection mechanism (4).

2. The mathematical random probability statistic model according to claim 1, wherein the ejection mechanism (4) comprises a slide block (8) disposed in the arc-shaped ejection track (3), the slide block (8) is in sliding contact with the arc-shaped ejection track (3), a pull rope (9) is disposed between the slide block (8) and the inner bottom wall of the box body (1), one end of the pull rope (9) is fixedly connected with the slide block (8), the other end of the pull rope (9) penetrates through the bottom wall of the box body (1) and is fixedly connected with a pull ring (10), a spring (11) is sleeved on the pull rope (9), one end of the spring (11) is fixedly connected with the slide block (8), and the other end of the spring (11) is fixedly connected with the inner bottom wall of the box body (1).

3. The mathematical random probability statistical model according to claim 1, wherein the closing mechanism (6) comprises a bar-shaped groove arranged on the upper end surface of the box body (1), a plurality of outlets are communicated with the bar-shaped groove, an inserting plate (12) is arranged in the bar-shaped groove in a matching manner, one end of the inserting plate (12) extends out of the bar-shaped groove, and a rubber layer is fixedly connected with the contact surface of the inserting plate (12) and the box body (1).

4. A mathematical random probability statistic model according to claim 1, wherein the support mechanism (7) comprises a support plate (13) disposed on one side of the box body (1) far from the glass plate (2), the upper end of the support plate (13) is rotatably connected with the box body (1), and a limit mechanism (14) for the support plate (13) is disposed on the box body (1).

5. A mathematical random probability statistic model according to claim 4, characterized in that the limiting mechanism (14) comprises a limiting rope (15) fixedly connected with the side wall of the box body (1) far away from the glass plate (2), one end of the limiting rope (15) far away from the box body (1) penetrates through the supporting plate (13) and is fixedly connected with a limiting ball (16), a rope clamp (17) is arranged between the limiting ball (16) and the supporting plate (13), and the rope clamp (17) is clamped on the limiting rope (15).

6. A mathematical stochastic probability statistic model according to claim 1, wherein the lower end surface of the box body (1) is provided with receiving grooves (18) corresponding to a plurality of outlets.