CN209895613U - Mathematical random probability statistical model - Google Patents

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.

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.

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.

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.