CN218939106U

CN218939106U - Novel probability demonstration instrument

Info

Publication number: CN218939106U
Application number: CN202222531127.9U
Authority: CN
Inventors: 王亚孟; 张二丽; 王冰雪; 孟鸽
Original assignee: Zhengzhou Institute of Finance and Economics
Current assignee: Zhengzhou Institute of Finance and Economics
Priority date: 2022-09-24
Filing date: 2022-09-24
Publication date: 2023-04-28
Anticipated expiration: 2032-09-24

Abstract

The utility model discloses a novel probability demonstration tool, which comprises a bottom plate, wherein a spring seat is fixedly arranged at the right center of the top of the bottom plate, a spring group is assembled at the top of the spring seat, a bottom box is fixedly arranged at the top end of the spring group, the bottom box is a transparent box body, a sleeve cover is movably sleeved at the top of the bottom box, the sleeve cover is an opaque cover body, and an inlet seat is assembled at the top of the sleeve cover; the bottom box is a rectangular box body; this novel probability presentation instrument, through the setting of bottom plate top end box, can cooperate the spring group to rock it, thereby can rock the inboard coin of seat of shaking, and then reach the effect of throwing the coin, and the setting of cover, be convenient for place the spheroid in end box, then cooperate the cover to shelter from it, rock end box and cover simultaneously, can make spheroid intensive mixing, guarantee follow-up effect of touching ball probability demonstration, solved current device and be difficult to synchronous the problem of touching ball and throwing coin probability demonstration operation.

Description

Novel probability demonstration instrument

Technical Field

The utility model relates to the technical field of teaching tools, in particular to a novel probability demonstration tool.

Background

Through retrieving, in the application of patent application number CN201320657762.X, disclose a university is probability demonstration teaching aid for mathematics, belong to the teaching tool field, solved at present and have not had simple effectual probability demonstration teaching aid's problem, it contains a plurality of transparent boxes, a plurality of transparent boxes fixed connection in proper order all are provided with the coin in a plurality of transparent boxes.

In the existing probability demonstration process, the general forms are coin throwing and ball touching, the components can only complete the common coin throwing demonstration operation, but cannot carry out corresponding ball touching demonstration, and the conventional general box body is adopted for ball touching demonstration, so that the operation is complex and the effect is general.

Therefore, we propose a novel probability demonstration tool.

Disclosure of Invention

(one) solving the technical problems

Aiming at the defects of the prior art, the utility model provides a novel probability demonstration tool, which solves the problem that the prior device is difficult to synchronously carry out the probability demonstration operation of touching and throwing coins.

(II) technical scheme

In order to achieve the above purpose, the utility model is realized by the following technical scheme: the utility model provides a novel probability presentation instrument, includes the bottom plate, the positive center department fixed mounting at bottom plate top has the spring holder, the top of spring holder is equipped with spring group, and spring group's top fixed mounting has a end box, end box is transparent box body, the top activity cover of end box is equipped with the cover, the cover is the opaque cover body, and the top of cover is equipped with the import seat.

Preferably, the bottom box is a rectangular box body, a shaking seat is fixedly arranged at the bottom of the inner side of the bottom box, and an inverted wedge-shaped bottom groove is formed in the inner side of the shaking seat.

Preferably, the bottom of the bottom box is fixedly connected with an arc-shaped L-shaped pull handle, and the outer end wall of the pull handle is fixedly provided with a pull ring.

Preferably, the bottom plate is a rectangular plate, a clamping groove is formed in the right end side of the top surface of the bottom plate, a clamping handle is fixedly mounted on the left side wall of the bottom plate, and the clamping handle and the clamping groove are in a T shape with the shape being matched with the specification.

Preferably, the bottom of the inner side of the clamping groove is fixedly provided with a magnetic plate seat, and the clamping handle and the magnetic plate seat are made of magnets with different magnetism.

Preferably, the main body of the sleeve cover is a rectangular tubular bracket, and the sleeve cover is sleeved with opaque black cloth positioned on the outer side wall of the tubular bracket.

(III) beneficial effects

The utility model provides a novel probability demonstration tool. The beneficial effects are as follows:

1. this novel probability presentation instrument, through the setting of bottom plate top end box, can cooperate the spring group to rock it, thereby can rock the inboard coin of seat of shaking, and then reach the effect of throwing the coin, and the setting of cover, be convenient for place the spheroid in end box, then cooperate the cover to shelter from it, rock end box and cover simultaneously, can make spheroid intensive mixing, guarantee follow-up effect of touching ball probability demonstration, solved current device and be difficult to synchronous the problem of touching ball and throwing coin probability demonstration operation.

2. This novel probability presentation instrument through the setting of draw-in groove and clamping handle on the bottom plate, can assemble multiunit end box and cover according to the demand of different ball probability demonstrations, increases the practicality and the suitability of the device.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of the structure of the bottom case of the present utility model;

FIG. 3 is a schematic view of a spring seat according to the present utility model;

fig. 4 is a schematic side view of the present utility model.

In the figure: 1. a bottom plate; 2. a spring seat; 3. a spring set; 4. a bottom box; 5. a cover; 6. a clamping groove; 7. a clamping handle; 8. a pull ring; 9. a shaking seat; 10. a magnetic plate base; 11. an inlet seat.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, the embodiment of the present utility model provides a technical solution: the novel probability demonstration tool comprises a bottom plate 1, a spring seat 2 is fixedly arranged at the right center of the top of the bottom plate 1, a spring group 3 is assembled at the top of the spring seat 2, a bottom box 4 is fixedly arranged at the top end of the spring group 3, the bottom box 4 is a transparent box body, a sleeve cover 5 is movably sleeved at the top of the bottom box 4, the sleeve cover 5 is an opaque cover body, and an inlet seat 11 is assembled at the top of the sleeve cover 5;

wherein, in this embodiment, it is to supplement the explanation, this novel probability presentation instrument, through the setting of bottom plate 1 top end box 4, can cooperate spring group 3 to rock it, thereby can rock the inboard coin of seat 9 to shaking, and then reach the effect of throwing the coin, and the setting of mantle 5, be convenient for place the spheroid in end box 4, then cooperate mantle 5 to shelter from it, shake end box 4 and mantle 5 simultaneously, can make spheroid intensive mixing, guarantee the effect of follow-up ball touching probability demonstration, the problem that current device is difficult to synchronous ball touching and throw coin probability demonstration operation has been solved.

In this embodiment, it should be noted that, the bottom case 4 is a rectangular case, the bottom of the inner side of the bottom case 4 is fixedly provided with a shake seat 9, and the inner side of the shake seat 9 is provided with an inverted wedge-shaped bottom groove;

the wedge-shaped bottom groove of the shaking seat 9 is convenient for the coins on the inner side to shake, so that the effect of efficiently throwing the coins is achieved.

In the embodiment, it should be noted that, the bottom of the bottom case 4 is fixedly connected with an arc-shaped L-shaped pull handle, and the outer end wall of the pull handle is fixedly provided with a pull ring 8;

wherein, the setting of pull ring 8 is convenient for pull end box 4 makes its inboard spheroid or coin fully rock, guarantees the probability demonstration effect of device.

In this embodiment, it should be noted that, the bottom plate 1 is a rectangular plate, the right end side of the top surface of the bottom plate 1 is provided with a clamping groove 6, the left side wall of the bottom plate 1 is fixedly provided with a clamping handle 7, and the shape of the clamping handle 7 and the clamping groove 6 is a T shape with a specification adapted;

in this embodiment, it should be further described that the bottom of the inner side of the clamping groove 6 is fixedly provided with a magnetic plate seat 10, and the clamping handle 7 and the magnetic plate seat 10 are made of magnets with different magnetism;

the novel probability demonstration tool can assemble the multi-group bottom box 4 and the sleeve cover 5 according to the requirements of different ball touching probability demonstration through the arrangement of the clamping groove 6 and the clamping handle 7 on the bottom plate 1, and the practicability and the suitability of the device are improved.

In this embodiment, it should be noted that the main body of the cover 5 is a rectangular tubular support, and the cover 5 is sleeved with an opaque black cloth on the outer side wall of the tubular support.

The working principle and the using flow of the utility model are as follows: when the device is required to carry out corresponding probability demonstration operation, the bottom plates 1 with different numbers and the bottom boxes 4 and the covers 5 at the tops of the bottom plates are assembled in advance according to the requirements, when coins need to shake, the covers 5 are disassembled, the shake and the result of the coins on the inner side of the bottom boxes 4 can be visually observed, when the probability of touching a ball needs to be demonstrated, the balls with corresponding numbers are placed in the bottom boxes 4 in advance, then the covers 5 are movably sleeved on the bottom boxes 4, and then the pull rings 8 are pulled to shake the balls, so that the mixing effect of the balls is guaranteed, and the probability of touching the ball is demonstrated conveniently.

While the fundamental and principal features of the utility model and advantages of the utility model have been shown and described, it will be apparent to those skilled in the art that the utility model is not limited to the details of the foregoing exemplary embodiments, but may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims

1. A novel probability demonstration instrument, its characterized in that: including bottom plate (1), the positive center department fixed mounting at bottom plate (1) top has spring holder (2), spring group (3) are equipped with at the top of spring holder (2), and the top end of spring group (3) has end box (4), end box (4) are transparent box body, cover (5) are equipped with to the top movable cover of end box (4), cover (5) are the opaque cover body, and the top of cover (5) is equipped with import seat (11).

2. The novel probabilistic demonstration instrument of claim 1, wherein: the bottom box (4) is a rectangular box body, a shaking seat (9) is fixedly arranged at the bottom of the inner side of the bottom box (4), and an inverted wedge-shaped bottom groove is formed in the inner side of the shaking seat (9).

3. The novel probabilistic demonstration instrument of claim 1, wherein: the bottom of the bottom box (4) is fixedly connected with an arc-shaped L-shaped pull handle, and a pull ring (8) is fixedly arranged on the outer end wall of the pull handle.

4. The novel probabilistic demonstration instrument of claim 1, wherein: the bottom plate (1) is a rectangular plate, a clamping groove (6) is formed in the right end side of the top surface of the bottom plate (1), a clamping handle (7) is fixedly mounted on the left side wall of the bottom plate (1), and the clamping handle (7) and the clamping groove (6) are in a T shape with a specification being matched with each other.

5. The novel probabilistic demonstration instrument of claim 4, wherein: the bottom of the inner side of the clamping groove (6) is fixedly provided with a magnetic plate seat (10), and the clamping handle (7) and the magnetic plate seat (10) are manufactured by magnets with different magnetism.

6. The novel probabilistic demonstration instrument of claim 1, wherein: the main body of the sleeve cover (5) is a rectangular tubular bracket, and the sleeve cover (5) is sleeved with opaque black cloth positioned on the outer side wall of the tubular bracket.