CN215360686U

CN215360686U - Automatic chalk box is used in formula teaching

Info

Publication number: CN215360686U
Application number: CN202121320397.4U
Authority: CN
Inventors: 武东梅
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-06-15
Filing date: 2021-06-15
Publication date: 2021-12-31
Anticipated expiration: 2031-06-15

Abstract

The utility model discloses an automatic chalk box for teaching, which comprises a chalk box main body, a turnover door, a chalk taking port, a motor and a fixed groove, wherein the chalk box main body is provided with the turnover door, the chalk taking port is formed in the chalk box main body, a baffle is fixed inside the chalk box main body, the baffle is connected with a bottom plate, a rotating disc is arranged above the bottom plate, the rotating disc is provided with a limit groove, the baffle is provided with a groove, the bottom plate is provided with a limit plate, the limit plate is provided with spare chalk, the limit plate is provided with a sliding groove, and the sliding groove is provided with a push plate. This automatic chalk box is used in formula teaching is provided with rotatable rolling disc, and the rolling disc shifts to getting pen point department through spacing groove with reserve chalk from the limiting plate in, and only a chalk exposes externally at the same time, has played the guard action to unused chalk, prevents that unused chalk from suffering destruction, improves this chalk utilization ratio of automatic chalk box is used in formula teaching.

Description

Automatic chalk box is used in formula teaching

Technical Field

The utility model relates to the technical field of chalk boxes for teaching, in particular to an automatic chalk box for teaching.

Background

Chalks are widely used in daily life and are generally used for writing on blackboards. Ancient chalks are usually made of natural chalk, but nowadays they are frequently replaced by other substances. The main component of the chalk is calcium sulfate which is a white precipitate, the chalk is not easy to decompose, the particles are larger than dust, a teacher often needs to use the chalk on a blackboard for writing and drawing, the chalk is erased and written for a plurality of times in a class of forty to fifty minutes, and a layer of white chalk dust is usually left on hands, sleeves, even hair and shoulders when the teacher goes to class. Every day, every year, two thirty years after work, the chalk of tens of thousands of times has worn away, therefore the convenience that the chalk used is very important to the teacher, and current teaching is with the chalk box, adopts the box of paper to pack more, need unpack the paper box apart when using, be difficult to after unpack apart protect the chalk that does not use, cause the waste of chalk, and the chalk in the chalk box arranges closely, inconvenient taking it.

We have therefore proposed an automatic teaching chalk case which solves the above-mentioned problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an automatic teaching chalk box, which solves the problems that the prior teaching chalk box in the market is mostly packaged by a paper box, the paper box needs to be disassembled when in use, unused chalk is not easily protected after the paper box is disassembled, the chalk is wasted, and the chalk in the chalk box is arranged closely and is inconvenient to take.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides an automatic formula chalk box for teaching, includes chalk box main part, upset door, gets a mouth, motor and fixed slot, install the upset door in the chalk box main part, and seted up in the chalk box main part and got a mouth, the inside baffle that is fixed with of chalk box main part, be connected with the bottom plate on the baffle, the bottom plate top is provided with the rolling disc, set up the spacing groove on the rolling disc, set up flutedly on the baffle, install the limiting plate on the bottom plate, be provided with reserve chalk on the limiting plate, and seted up the sliding tray on the limiting plate, be provided with the push pedal on the sliding tray, be connected with the spring in the push pedal, be connected with the motor on the rolling disc, the fixed slot has been seted up on the bottom plate.

Preferably, two grooves are formed in the baffle, the baffle surrounds to form a circle, and the height of each groove is equal to that of the baffle.

Preferably, the rotating disc is of a rotating structure on the bottom plate through a motor, the outer diameter of the rotating disc is equal to the inner diameter of the baffle, and the bottom of the baffle is fixed on the bottom plate.

Preferably, four limiting grooves are symmetrically distributed on the rotating disc about the center of the vertical center line of the rotating disc, the diameter of a circle where the limiting grooves are located is equal to the width of the groove, and the depth of each limiting groove is equal to the diameter of the spare chalk.

Preferably, the push plate is of a telescopic structure on the limiting plate through a spring, the telescopic distance of the push plate is equal to the length of the limiting plate, and the push plate is located in the middle of the limiting plate in the vertical direction.

Preferably, the fixed groove is formed in the bottom plate in the pen taking port, the radius of the circle where the fixed groove is located is larger than that of the circle where the limiting groove is located, and the pressure sensor is installed at the bottom of the fixed groove.

Compared with the prior art, the utility model has the beneficial effects that: the automatic chalk box for teaching is provided with a chalk box,

(1) the automatic chalk box for teaching is provided with the rotatable rotating disc, the rotating disc transfers the spare chalk from the limiting plate to the chalk taking port through the limiting groove, only one chalk is exposed outside at the same time, the protection effect on the unused chalk is achieved, the unused chalk is prevented from being damaged, and the chalk utilization rate of the automatic chalk box for teaching is improved;

(2) be provided with the fixed slot, can make the chalk of spacing inslot fall to the fixed slot in automatically, through the rotation of the sensor pause motor of fixed slot bottom, make the chalk be located and get the nib, when using, only need outwards stir the chalk, can take out the chalk and get the nib, can not have the influence of other chalks, improved the convenience that the device used.

Drawings

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

FIG. 2 is a schematic cross-sectional view of the present invention;

FIG. 3 is a schematic view of a vertical cross-section of the rotating disk of the present invention;

FIG. 4 is a side view of the push plate of the present invention.

In the figure: 1. a chalk case main body; 2. turning over the door; 3. taking a pen mouth; 4. a baffle plate; 5. a base plate; 6. rotating the disc; 7. a limiting groove; 8. a groove; 9. a limiting plate; 10. spare chalk; 11. a sliding groove; 12. pushing the plate; 13. a spring; 14. a motor; 15. and fixing the grooves.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: an automatic chalk box for teaching comprises a chalk box main body 1, a turnover door 2, a chalk taking opening 3, a baffle 4, a bottom plate 5, a rotating disc 6, a limiting groove 7, a groove 8, a limiting plate 9, spare chalk 10, a sliding groove 11, a push plate 12, a spring 13, a motor 14 and a fixing groove 15, wherein the turnover door 2 is arranged on the chalk box main body 1, a chalk taking opening 3 is arranged on the chalk box main body 1, a baffle 4 is fixed in the chalk box main body 1, a bottom plate 5 is connected on the baffle 4, a rotating disc 6 is arranged above the bottom plate 5, a limiting groove 7 is arranged on the rotating disc 6, a groove 8 is arranged on the baffle 4, a limiting plate 9 is arranged on the bottom plate 5, a spare chalk 10 is arranged on the limiting plate 9, and the limiting plate 9 is provided with a sliding groove 11, the sliding groove 11 is provided with a push plate 12, the push plate 12 is connected with a spring 13, the rotating disc 6 is connected with a motor 14, and the bottom plate 5 is provided with a fixing groove 15.

Two grooves 8 are formed in the baffle 4, the baffle 4 is circular in surrounding mode, the height of each groove 8 is equal to that of the baffle 4, and the spare chalk 10 can conveniently enter and exit the limiting groove 7 through the grooves 8.

The rotating disc 6 is of a rotating structure on the bottom plate 5 through the motor 14, the outer diameter of the rotating disc 6 is equal to the inner diameter of the baffle plate 4, and the bottom of the baffle plate 4 is fixed on the bottom plate 5, so that spare chalk 10 can be conveniently transferred through the rotating disc 6.

Four limiting grooves 7 are symmetrically distributed on the rotating disc 6 relative to the center of the vertical center line of the rotating disc 6, the diameter of the circle where the limiting grooves 7 are located is equal to the width of the groove 8, and the depth of each limiting groove 7 is equal to the diameter of the spare chalk 10, so that three spare chalks 10 can exist on the rotating disc 6 at the same time, and the moving efficiency of the spare chalk 10 by the spare rotating disc 6 is improved.

The push plate 12 is of a telescopic structure on the limiting plate 9 through the spring 13, the telescopic distance of the push plate 12 is equal to the length of the limiting plate 9, and the push plate 12 is located in the middle of the limiting plate 9 in the vertical direction, so that spare chalk 10 can automatically enter the limiting groove 7 in sequence.

The fixing groove 15 is formed in the bottom plate 5 in the chalk taking opening 3, the radius of the circle where the fixing groove 15 is located is larger than that of the circle where the limiting groove 7 is located, and the pressure sensor is installed at the bottom of the fixing groove 15, so that the spare chalk 10 can conveniently fall into the fixing groove 15 from the bottom plate 5.

The working principle is as follows: when the automatic teaching chalk box is used, the device is firstly moved to a place where chalk is needed to be used and is placed on a horizontal desktop, when the inductor of fixed slot 15 does not receive pressure, can start motor 14, motor 14 drives rolling disc 6 and rotates, rolling disc 6 drives spacing groove 7 and rotates to the recess 8 department on baffle 4 right side, the opening of spacing groove 7 right-hand member aligns with recess 8, spring 13 can promote push pedal 12 left, push pedal 12 slides to left in sliding tray 11, push pedal 12 promotes reserve chalk 10 in the limiting plate 9 left, leftmost reserve chalk 10 is by the propelling movement to spacing groove 7, rolling disc 6 drives reserve chalk 10 through spacing groove 7 and slides on bottom plate 5, until reserve chalk 10 slides to fixed slot 15, reserve chalk 10 falls in fixed slot 15 and triggers the inductor, motor 14 pauses, make rolling disc 6 no longer rotate.

When the automatic chalk box is used, the spare chalk 10 in the chalk opening 3 can be pulled out, the sensor in the fixed groove 15 loses pressure, the motor 14 is started again to rotate until the next spare chalk 10 is moved to the fixed groove 15, after the spare chalk 10 in the limiting plate 9 is used up, the new spare chalk 10 can be added into the limiting plate 9 through the turnover door 2, the use of the automatic chalk box for teaching is completed, and the content which is not described in detail in the specification belongs to the prior art which is known by professionals in the field.

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 various changes in the embodiments and/or modifications of the utility model can be made, and equivalents and modifications of some features of the utility model can be made without departing from the spirit and scope of the utility model.

Claims

1. The utility model provides an automatic chalk box is used in formula teaching, includes chalk box main part (1), upset door (2), gets a mouth (3), motor (14) and fixed slot (15), its characterized in that: the chalk box main body (1) is provided with a turnover door (2), the chalk box main body (1) is provided with a chalk taking opening (3), a baffle (4) is fixed in the chalk box main body (1), a bottom plate (5) is connected on the baffle (4), a rotating disc (6) is arranged above the bottom plate (5), a limit groove (7) is formed in the rotating disc (6), the baffle (4) is provided with a groove (8), the bottom plate (5) is provided with a limiting plate (9), the limiting plate (9) is provided with spare chalk (10), a sliding groove (11) is arranged on the limit plate (9), a push plate (12) is arranged on the sliding groove (11), the push plate (12) is connected with a spring (13), the rotating disc (6) is connected with a motor (14), and the bottom plate (5) is provided with a fixing groove (15).

2. The automatic chalk box for teaching according to claim 1, wherein: two grooves (8) are formed in the baffle (4), the baffle (4) is surrounded to be circular, and the height of each groove (8) is equal to that of the baffle (4).

3. The automatic chalk box for teaching according to claim 1, wherein: the rotating disc (6) is of a rotating structure on the bottom plate (5) through the motor (14), the outer diameter of the rotating disc (6) is equal to the inner diameter of the baffle (4), and the bottom of the baffle (4) is fixed on the bottom plate (5).

4. The automatic chalk box for teaching according to claim 1, wherein: four limiting grooves (7) are symmetrically distributed on the rotating disc (6) in the center of the vertical central line of the rotating disc (6), the diameter of the circle where the limiting grooves (7) are located is equal to the width of the groove (8), and the depth of the limiting grooves (7) is equal to the diameter of the spare chalk (10).

5. The automatic chalk box for teaching according to claim 1, wherein: the push plate (12) is of a telescopic structure on the limiting plate (9) through the spring (13), the telescopic distance of the push plate (12) is equal to the length of the limiting plate (9), and the push plate (12) is located in the middle of the limiting plate (9) in the vertical direction.

6. The automatic chalk box for teaching according to claim 1, wherein: the fixing groove (15) is formed in the bottom plate (5) in the pen taking opening (3), the radius of the circle where the fixing groove (15) is located is larger than that of the circle where the limiting groove (7) is located, and the bottom of the fixing groove (15) is provided with a pressure sensor.