CN214384693U

CN214384693U - Probability experimental device

Info

Publication number: CN214384693U
Application number: CN202120814725.XU
Authority: CN
Inventors: 于金莉
Original assignee: Changchun University of Science and Technology College of Optical and Electronical Information
Current assignee: Changchun University of Science and Technology College of Optical and Electronical Information
Priority date: 2021-04-20
Filing date: 2021-04-20
Publication date: 2021-10-12
Anticipated expiration: 2031-04-20

Abstract

The utility model belongs to the technical field of teaching experiment device, especially, be a probability experimental apparatus, comprising a main body, the inside bidirectional sloping board about separating that is equipped with of main part, bidirectional sloping board's below is equipped with from the top down quantity increases in proper order and a plurality of nail post that the interval equals, the below of nail post is equipped with a plurality of and is the baffle that linear array distributes along the horizontal direction, set up the intercommunication mouth that is used for the probability experiment pellet to pass through on the bidirectional sloping board, and its side runs through there is the baffle rather than sliding connection along the horizontal direction, the back of main part rotates through the connecting axle and is connected with the backup pad. The utility model discloses a set up the two-way swash plate and run through the baffle of two-way swash plate, be convenient for emit and accomodate the experiment bobble, rotate between setting up main part and backup pad and connect, utilize to change the main part upset of being convenient for, make the experiment bobble get back to the top of two-way swash plate, easy operation is convenient for repeatedly experiment.

Description

Probability experimental device

Technical Field

The utility model relates to a teaching experiment technical field specifically is a probability experimental apparatus.

Background

Normal distribution, also called "normal distribution", also called gaussian distribution, is a probability distribution that is very important in the fields such as mathematics, physics and engineering, has a great influence in many aspects of statistics, and university teachers need to carry out the experimental demonstration of normal distribution to students during mathematical education, and the following problems exist in the common experimental apparatus for demonstrating normal distribution:

1. the experimental device in the prior art has a simple and crude structure, a single function and complicated operation; moreover, the pellets are inconvenient to store after the experiment is completed.

2. The angle of placing of common probability experimental apparatus is fixed usually, and the regulation of angle is inconvenient to carry out, and is convenient inadequately in the show of teaching experiment.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a probability experimental apparatus has solved the inconvenient problem of accomodating and the device is inconvenient to carry out angle modulation of the experimental bobble that mentions in the above-mentioned technical background.

The second technical proposal.

The utility model discloses a realize above-mentioned purpose and specifically adopt following technical scheme:

the utility model provides a probability experimental apparatus, includes the main part, the inside bidirectional inclined plate about separating that is equipped with of main part, the below of bidirectional inclined plate is equipped with from the top down quantity and increases in proper order and a plurality of nail post that the interval equals, the below of nail post is equipped with the baffle that a plurality of is linear array and distributes along the horizontal direction, offer the intercommunication mouth that is used for the probability experiment to pass through for the bobble, and its side runs through the baffle along horizontal direction rather than sliding connection, the back of main part rotates through the connecting axle and is connected with the backup pad, the backup pad endotheca is equipped with the fagging of being the rotation connection along its upper end, be equipped with the extension structure in the fagging, the front end of main part is equipped with transparent ya keli board.

Furthermore, one side of the baffle is provided with a notch matched with the communicating port, one end of the baffle is connected with a handle used for pushing and pulling the baffle, and the other end of the baffle is connected with a lug used for avoiding the baffle from being separated.

Further, the extension structure comprises a sleeve arranged on the inclined supporting plate, an extension plate which is connected in a sliding mode along the extension direction of the sleeve is sleeved in the sleeve, and the extension plate is fixed in the sleeve through a bolt.

Furthermore, the extension plate is provided with positioning holes which are distributed in a linear array along the extension direction of the extension plate, and the bolt is in threaded connection with the positioning holes.

Further, the lower extreme of extension board both sides all is equipped with cylindrical rubber pad, the both sides of sleeve lower extreme all are seted up with cylindrical rubber pad assorted draw-in groove.

Furthermore, the two sides of the main body are provided with rotating handles.

(III) advantageous effects

Compared with the prior art, the utility model provides a probability experimental apparatus possesses following beneficial effect:

1. the utility model discloses, through setting up the two-way swash plate and running through the baffle of two-way swash plate, be convenient for emit and accomodate the experiment bobble, rotate between through setting up main part and backup pad and connect, utilize to change the top of being convenient for overturn the main part, make the experiment bobble get back to two-way swash plate, easy operation is convenient for repeatedly experiment.

2. The utility model discloses, through setting up the extension structure on the backup pad that rotates the oblique fagging of connection and the oblique fagging in the backup pad, the inclination of the adjusting device positive orientation of being convenient for easily shows the experiment content to the student, through setting up the handle to the side of the main part, when experimenting, is difficult for sheltering from inside the main part.

Drawings

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

fig. 2 is a schematic view of another three-dimensional structure of the present invention;

FIG. 3 is a schematic front view of the present invention;

fig. 4 is a cross-sectional view along the direction a-a of the present invention.

In the figure: 1. a main body; 2. a bidirectional sloping plate; 3. nailing columns; 4. a partition plate; 5. a communication port; 6. a baffle plate; 601. a notch; 602. a handle; 603. a bump; 7. a connecting shaft; 8. a support plate; 9. a diagonal bracing plate; 10. an elongated structure; 1001. a sleeve; 1002. an extension plate; 1003. positioning holes; 11. a cylindrical rubber pad; 12. a card slot; 13. a bolt; 14. and (4) turning the handle.

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.

Examples

As shown in figures 1, 2 and 3, the probability experiment device provided by one embodiment of the invention comprises a main body 1, a bidirectional inclined plate 2 for separating the upper part and the lower part is arranged in the main body 1, a plurality of nail posts 3 with equal intervals are arranged below the bidirectional inclined plate 2 from top to bottom, a plurality of partition plates 4 distributed in a linear array along the horizontal direction are arranged below the nail posts 3, a communication port 5 for passing a pellet for probability experiments is arranged on the bidirectional inclined plate 2, a baffle plate 6 connected with the bidirectional inclined plate in a sliding way along the horizontal direction penetrates through the side surface of the bidirectional inclined plate, a support plate 8 is rotatably connected with the back surface of the main body 1 through a connecting shaft 7, an inclined support plate 9 rotatably connected along the upper end of the support plate 8 is sleeved in the support plate 8, an extension structure 10 is arranged on the inclined support plate 9, a transparent acrylic plate is arranged at the front end of the main body 1, and the bidirectional inclined plate 2 and the baffle plate 6 penetrating through the bidirectional inclined plate 2 are arranged, be convenient for emit and accomodate the experiment bobble, rotate between through setting up main part 1 and backup pad 8 and be connected, be convenient for with the upset of main part 1, make the experiment bobble get back to the top of two-way swash plate 2, easy operation, the repetition of being convenient for is tested.

As shown in fig. 3, in some embodiments, a notch 601 matched with the communication port 5 is formed in one side of the baffle 6, one end of the baffle is connected with a handle 602 for pushing and pulling the baffle 6, the other end of the baffle 6 is connected with a projection 603 for preventing the baffle 6 from coming off, the experimental pellets can be conveniently released and blocked by the handle 602, and the baffle 6 can be conveniently prevented from coming off completely by the projection 603.

As shown in fig. 4, in some embodiments, the elongated structure 10 includes a sleeve 1001 disposed on the inclined strut plate 9, an elongated plate 1002 slidably connected along an extending direction of the sleeve 1001 is sleeved in the sleeve 1001, the elongated plate 1002 is fixed in the sleeve 1001 through a bolt 13, and the inclination angle of the main body 1 is conveniently controlled through the arrangement of the elongated plate 1002.

As shown in fig. 4, in some embodiments, the elongated plate 1002 has positioning holes 1003 arranged in a linear array along the extending direction thereof, and the bolts 13 are screwed into the positioning holes 1003, so that the positioning holes 1003 and the bolts 13 are arranged to facilitate the control of the extending length of the elongated plate 1002.

As shown in fig. 2, in some embodiments, the lower ends of the two sides of the extension plate 1002 are provided with cylindrical rubber pads 11, the two sides of the lower end of the sleeve 1001 are provided with clamping grooves 12 matched with the cylindrical rubber pads 11, and the extension structure 10 is stabilized by the arrangement of the cylindrical rubber pads 11, and the clamping grooves 12 are clamped with the cylindrical rubber pads 11 when the extension plate 1002 is completely retracted into the sleeve 1001.

As shown in FIG. 2, in some embodiments, the main body 1 is provided with rotating handles 14 on both sides, and the rotation of the main body 1 is facilitated by the arrangement of the rotating handles 14, so that the laboratory ball returns to the upper side of the bidirectional inclined plate 2.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A probabilistic experimental device comprising a body (1), characterized in that: the utility model discloses a probability experiment is characterized in that main part (1) is inside to be equipped with two-way swash plate (2) about separating, the below of two-way swash plate (2) is equipped with from the top down quantity increases in proper order and a plurality of nail post (3) that the interval equals, the below of nail post (3) is equipped with baffle (4) that a plurality of is linear array along the horizontal direction and distributes, set up intercommunication mouth (5) that are used for the probability experiment to pass through for the bobble, and its side runs through baffle (6) rather than sliding connection along the horizontal direction, the back of main part (1) is rotated through connecting axle (7) and is connected with backup pad (8), backup pad (8) endotheca is equipped with and is rotation connection's fagging (9) along its upper end, be equipped with extension structure (10) on fagging (9), the front end of main part (1) is equipped with transparent ya keli board.

2. A probabilistic experimental device according to claim 1, wherein: one side of the baffle (6) is provided with a notch (601) matched with the communication port (5), one end of the baffle is connected with a handle (602) used for pushing and pulling the baffle (6), and the other end of the baffle (6) is connected with a lug (603) used for avoiding the baffle (6) from being separated.

3. A probabilistic experimental device according to claim 1, wherein: the extension structure (10) comprises a sleeve (1001) arranged on the inclined supporting plate (9), an extension plate (1002) connected in a sliding mode along the extension direction of the sleeve (1001) is sleeved in the sleeve (1001), and the extension plate (1002) is fixed in the sleeve (1001) through a bolt (13).

4. A probabilistic experimental device according to claim 3, wherein: the extension plate (1002) is provided with positioning holes (1003) which are distributed in a linear array along the extension direction of the extension plate, and the bolts (13) are in threaded connection with the positioning holes (1003).

5. A probabilistic experimental device according to claim 3, wherein: the lower extreme of extension board (1002) both sides all is equipped with cylindrical rubber pad (11), draw-in groove (12) with cylindrical rubber pad (11) assorted are all seted up to both sides of sleeve (1001) lower extreme.

6. A probabilistic experimental device according to claim 1, wherein: the two sides of the main body (1) are provided with rotating handles (14).