CN216623550U

CN216623550U - Primary school's mathematics circle area cognitive teaching is with exploring instrument

Info

Publication number: CN216623550U
Application number: CN202122884816.3U
Authority: CN
Inventors: 唐小锋
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-11-23
Filing date: 2021-11-23
Publication date: 2022-05-27
Anticipated expiration: 2031-11-23

Abstract

The application discloses study instrument is explored with cognitive teaching of primary school's mathematics circle area, including disc, transmission shaft, painting brush, little short section of thick bamboo, big short section of thick bamboo, bar board, screw hole piece, screw rod, first motor and second motor. This application is rational in infrastructure, circle piece and the coupling part that connects through the transmission axis are driven through the second motor and are rotated at 1 top surface of disc, do benefit to the painting brush and draw the circle on circle thin slice surface, and demonstrate the big or small data of circle area on the display, it rotates to drive the screw rod through the first motor of operation, reach the effect that drives the big stub section of thick bamboo removal through the screw hole piece is connected, can change the position of the painting brush of connecting through little stub, do benefit to drawing different radial circles, play the effect of exploring circle area size variation factor, through installing on the painting brush in little stub section of thick bamboo and little stub section of thick bamboo through reset spring and the inside elastic connection of big stub section of thick bamboo, can guarantee painting brush bottom and circle thin slice surface contact all the time, do benefit to and carry out the circle at any time.

Description

Primary school's mathematics circle area cognitive teaching is with exploring instrument

Technical Field

The application relates to the field of mathematics teaching aids, in particular to a study tool for primary school mathematics circle area cognition teaching.

Background

The teaching aid is a real object aiming at spreading science and technology and educating people, is a complete science and technology medium, is an indispensable device in teenager science and technology activities, and comprises a real object teaching aid and a duplicate teaching aid.

The degree of proficiency of the pupils in learning the area of the mathematical circle is determined by the pupils, and the traditional circle drawing teaching aid is single in structure and not strong in functionality. Therefore, a research tool for primary school mathematics circle area cognition teaching is provided aiming at the problems.

Disclosure of Invention

The embodiment provides a research tool for primary school mathematics circle area cognition teaching, which is used for solving the problems in the prior art.

According to an aspect of the application, a study instrument is used in cognitive teaching of primary school's mathematics circle area is provided, including disc, transmission shaft, painting brush, little short section of thick bamboo, big short section of thick bamboo, strip shaped plate, screw hole piece, screw rod, first motor and second motor, the disc middle part is passed through the bearing and is connected with the rotation of transmission shaft middle part, and the transmission shaft both ends are connected with the axostylus axostyle end of second motor respectively and the circle piece is connected, the painting brush sets up in little short section of thick bamboo mouth, and little short section of thick bamboo enclosed end passes through reset spring and big short section of thick bamboo in elastic connection, big short section of thick bamboo blind end and screw hole piece bottom fixed connection, and screw hole piece thread installs on the screw rod, the screw rod rotates to be installed in the bar is downthehole, and screw rod one end face is connected with the axostylus axostyle end of first motor.

Furthermore, the top surface of the disc is provided with a circular slice, the surface of the circular slice is provided with three scale marks in an annular and equidistant manner, and the circular slice is a handwriting carrier.

Further, the second motor is installed in the middle of the top in the circular groove, and the circular groove is formed in the bottom surface of the disc.

Further, first motor and second motor all pass through wire and PCB board and PLC controller electric connection, and the PCB board is installed in the circular slot, and the PLC controller is located the PCB board.

Furthermore, a rectangular groove is formed in the surface of the top of the disc, a display is installed in the rectangular groove, and the display is electrically connected with the PLC through a wire and a PCB.

Further, the first motor is installed in a placing groove, and the placing groove is formed in one end of the top surface of the strip-shaped plate.

Further, the outer end of the painting brush exceeds the opening of the small short barrel, and the outer end of the painting brush is in contact with the surface of the round thin sheet.

Furthermore, the two side surfaces of the screw hole block are in sliding contact with the two side walls in the strip-shaped hole.

Furthermore, an electric control switch is arranged at a position corresponding to the annular surface of the disc.

Further, one third part of the small short cylinder is positioned in the large short cylinder.

Through the above-mentioned embodiment of this application, circle piece and the coupling part that connects through the transmission shaft are driven through the second motor and are rotated at 1 top surface of disc, do benefit to the painting brush and draw a circle on circle thin slice surface, and demonstrate the big or small data of circle area on the display, it rotates to drive the screw rod through operation first motor, reach the effect that drives the big stub removal through the screw hole piece is connected, can change the position of the painting brush of connecting through little stub, do benefit to drawing different radial circles, play the effect of exploring circle area size variation factor, through installing on the painting brush in little stub and little stub through reset spring and big stub inside elastic connection, can guarantee the painting brush bottom and do benefit to circle thin slice surface contact all the time, draw a circle at any time.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.

FIG. 1 is a perspective view of the overall structure of one embodiment of the present application;

FIG. 2 is a top view of the overall structure of one embodiment of the present application;

fig. 3 is a schematic view of an overall backside structure according to an embodiment of the present application.

In the figure: 1. a disc; 2. a round thin sheet; 3. scale lines; 4. a rectangular groove; 5. a display; 6. a bearing; 7. a drive shaft; 8. painting brushes; 9. a small short cylinder; 10. a large and short cylinder; 11. a strip plate; 12. a strip-shaped hole; 13. a screw hole block; 14. a screw; 15. a first motor; 16. a placement groove; 17. a round block; 18. a circular groove; 19. a PCB board; 20. a PLC controller; 21. a second motor.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all 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 application.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

The exploring tool in this embodiment may be suitable for learning of the area of the primary school mathematics circle, for example, the following ruler for primary school mathematics is provided in this embodiment.

The ruler for primary school mathematics comprises a body, wherein a first groove is formed in the upper surface of the body, a first liquid level meter is fixedly arranged in the first groove, a second groove is formed in one side of the body, a second liquid level meter is fixedly arranged in the second groove, a circular groove is further formed in one side of the body, and a first knob, a first threaded rod, a compass tip, a second threaded rod, a supporting block and a chalk placing groove are arranged, so that the ruler for primary school mathematics can be used for drawing a circle, and the functionality of the ruler for primary school mathematics is improved; set up spout, supporting shoe, nut, second threaded rod and second knob for can be through adjusting the second threaded rod, draw the circle of equidimension not, thereby improved the suitability of chi for primary school's mathematics, reduced the drawing degree of difficulty, improved the drawing quality.

Here, a detailed description is omitted, and a description is given below of a research tool according to an embodiment of the present application.

Referring to fig. 1-3, a research tool for learning circle and area in primary school mathematics comprises a disc 1, a transmission shaft 7, a painting brush 8, a small short cylinder 9, a large short cylinder 10, a strip-shaped plate 11, a screw hole block 13, a screw 14, a first motor 15 and a second motor 21, wherein the middle part of the disc 1 is rotatably connected with the middle part of the transmission shaft 7 through a bearing 6, two ends of the transmission shaft 7 are respectively connected with a shaft rod end of the second motor 21 and a round block 17, the painting brush 8 is arranged in the opening of the small short cylinder 9, the closed end surface of the small short cylinder 9 is elastically connected with the inside of the large short cylinder 10 through a return spring, the closed end of the large short cylinder 10 is fixedly connected with the bottom of the screw hole block 13, the screw hole block 13 is installed on the screw 14 in a threaded manner, the screw 14 is rotatably installed in the strip-shaped hole 12, and one end surface of the screw 14 is connected with the shaft rod end of the first motor 15.

The top surface of the disc 1 is provided with a round slice 2, the surface of the round slice 2 is annularly and equidistantly provided with three scale marks 3, and the round slice 2 is a handwriting carrier; the second motor 21 is arranged in the middle of the top in the circular groove 18, and the circular groove 18 is formed in the bottom surface of the disc 1; the first motor 15 and the second motor 21 are both electrically connected with the PLC 20 through a lead and a PCB 19, the PCB 19 is arranged in the circular groove 18, and the PLC 20 is positioned on the PCB 19; the top surface of the disc 1 is provided with a rectangular groove 4, a display 5 is arranged in the rectangular groove 4, and the display 5 is electrically connected with a PLC (programmable logic controller) 20 through a lead and a PCB (printed circuit board) 19; the first motor 15 is installed in a placing groove 16, and the placing groove 16 is formed in one end of the top surface of the strip-shaped plate 11; the outer end of the painting brush 8 exceeds the opening of the small short cylinder 9, and the outer end of the painting brush 8 is in contact with the surface of the round slice 2; the surfaces of two sides of the screw hole block 13 are in sliding contact with the side walls of two sides in the strip-shaped hole 12; an electric control switch is arranged at a position corresponding to the annular surface of the disc 1; one third of the small short cylinder 9 is positioned in the large short cylinder 10.

When the operation switch is turned on, the second motor 21 drives the round block 17 and the connecting part which are connected through the transmission shaft 7 to rotate on the top surface of the disc 1, so that a painting brush 8 can draw a circle on the surface of the round slice 2 conveniently, and the display 5 presents the size data of the area of the circle;

the first motor 15 is operated to drive the screw 14 to rotate, so that the effect of driving the large and short cylinders 10 connected through the screw hole block 13 to move is achieved, the positions of the paintbrushes 8 connected through the small and short cylinders 9 can be changed, circles with different radiuses can be drawn conveniently, and the function of researching the change factors of the circle area size is achieved;

through installing on painting brush 8 in a little short section of thick bamboo 9 and a little short section of thick bamboo 9 through reset spring and the inside elastic connection of a big short section of thick bamboo 10, can guarantee 8 bottoms of painting brush all the time with 2 surface contact of circle thin slice, do benefit to and carry out the circle of drawing at any time.

The application has the advantages that:

1. the structure of the drawing device is reasonable, the second motor 21 drives the round block 17 and the connecting part which are connected through the transmission shaft 7 to rotate on the top surface of the disc 1, the drawing brush 8 is facilitated to draw a circle on the surface of the round slice 2, and the display 5 presents the size data of the circle area;

2. the drawing device is reasonable in structure, the position of the drawing pen 8 connected through the small short barrel 9 can be changed, circles with different radiuses can be drawn conveniently, and the effect of researching the change factors of the circle area is achieved;

3. this application is rational in infrastructure, through with installing on painting brush 8 in a little short section of thick bamboo 9 and a little short section of thick bamboo 9 through reset spring and the inside elastic connection of a big short section of thick bamboo 10, can guarantee that 8 bottoms of painting brush all the time with 2 surface contact of circle thin slice, do benefit to and carry out the drawing circle at any time.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. The utility model provides a cognitive teaching of primary school's mathematics circle area is with exploring instrument which characterized in that: comprises a disc (1), a transmission shaft (7), a painting brush (8), a small short tube (9), a large short tube (10), a strip-shaped plate (11), a screw hole block (13), a screw rod (14), a first motor (15) and a second motor (21), the middle part of the disc (1) is rotationally connected with the middle part of the transmission shaft (7) through a bearing (6), two ends of the transmission shaft (7) are respectively connected with the shaft end of the second motor (21) and the round block (17), the painting brush (8) is arranged in the opening of the small short cylinder (9), the closed end surface of the small and short cylinder (9) is elastically connected with the inside of the large and short cylinder (10) through a return spring, the closed end of the big and short cylinder (10) is fixedly connected with the bottom of the screw hole block (13), and the screw hole block (13) is arranged on the screw rod (14) in a threaded manner, the screw rod (14) is rotatably arranged in the strip-shaped hole (12), and one end face of the screw (14) is connected with the shaft rod end of the first motor (15).

2. The exploring tool for learning circle area in primary school mathematics as claimed in claim 1, wherein: the top surface of the disc (1) is provided with a round slice (2), three scale marks (3) are annularly and equidistantly arranged on the surface of the round slice (2), and the round slice (2) is a handwriting carrier.

3. The exploring tool for learning circle area in primary school mathematics as claimed in claim 1, wherein: the second motor (21) is arranged in the middle of the inner top of the circular groove (18), and the circular groove (18) is formed in the bottom surface of the disc (1).

4. The exploring tool for learning circle area in primary school mathematics as claimed in claim 1, wherein: first motor (15) and second motor (21) all pass through wire and PCB board (19) and PLC controller (20) electric connection, and install in circular slot (18) PCB board (19), and PLC controller (20) are located PCB board (19).

5. The exploring tool for learning circle area in primary school mathematics as claimed in claim 1, wherein: rectangular channel (4) have been seted up to disc (1) top surface, and install display (5) in rectangular channel (4), display (5) pass through wire and PCB board (19) and PLC controller (20) electric connection.

6. The exploring tool for learning circle area in primary school mathematics as claimed in claim 1, wherein: the first motor (15) is installed in the placing groove (16), and the placing groove (16) is formed in one end of the top surface of the strip-shaped plate (11).

7. The exploring tool for learning circle area in primary school mathematics as claimed in claim 1, wherein: the outer end of the painting brush (8) exceeds the opening of the small short cylinder (9), and the outer end of the painting brush (8) is in surface contact with the round slice (2).

8. The exploring tool for learning circle area in primary school mathematics as claimed in claim 1, wherein: the surfaces of two sides of the screw hole block (13) are in sliding contact with the side walls of two inner sides of the strip-shaped hole (12).

9. The exploring tool for learning circle area in primary school mathematics as claimed in claim 1, wherein: an electric control switch is arranged at the position corresponding to the annular surface of the disc (1).

10. The exploring tool for learning circle area in primary school mathematics as claimed in claim 1, wherein: one third part of the small and short cylinder (9) is positioned in the large and short cylinder (10).