CN210378008U

CN210378008U - Graphic demonstrator for primary mathematics

Info

Publication number: CN210378008U
Application number: CN201920767574.XU
Authority: CN
Inventors: 张世茂
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-05-27
Filing date: 2019-05-27
Publication date: 2020-04-21
Anticipated expiration: 2029-05-27

Abstract

The utility model discloses a graphic presentation ware for primary school's mathematics, including the toolbox, the right side of toolbox is provided with the runner, the right-hand member fixed mounting of runner has the handle, the left side welded fastening of runner has the connecting rod, the left end of connecting rod is fixed to have cup jointed main bevel gear, main bevel gear's left side is rotated through the gear interlock and is connected with driven bevel gear, driven bevel gear is fixed to be cup jointed on the dwang, the lower extreme of dwang is rotated and is installed in the inner wall of toolbox, and its upper end welded fastening is on the rolling disc, the rolling disc is the disc, and angle welded fastening such as its upper end has the connecting pipe, the utility model relates to a teaching technical field. This graphic demonstration ware for primary school's mathematics has reached student's oneself and has operated, rotates the handle and then the different model of auto-eject, has certain interest, makes things convenient for the student to study, and improves the enthusiasm that the student studied, and then improves teaching effect, satisfies user demand's purpose.

Description

Graphic demonstrator for primary mathematics

Technical Field

The utility model relates to a teaching technical field specifically is a graphics presentation ware for primary school's mathematics.

Background

In the primary school mathematics teaching, if teachers directly make students read the textual description when teaching various figures, shapes of the figures and contents of the figures, the primary school students are difficult to learn, and the students are difficult to form systematic knowledge in mind, which brings difficulty to the students. However, the pupils can easily understand and accept what they see objectively, so it is very important to have a corresponding graphic demonstration device. At present, the present graphic demonstration ware for primary school's mathematics, the structure is complicated, the student operation of being not convenient for, and can not let the student oneself go to touch with one's hands, can not deepen student's memory, can't satisfy the user demand.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides a graphic demonstration ware for primary school's mathematics has solved current graphic demonstration ware for primary school's mathematics, and the structure is complicated, and the student operation of being not convenient for, and can not let the student oneself go to touch with one's hands, can't deepen student's memory, can't satisfy user demand's problem.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a graphic demonstrator for primary mathematics comprises a tool box, wherein a rotating wheel is arranged on the right side of the tool box, a handle is fixedly arranged at the right end of the rotating wheel, a connecting rod is fixedly welded on the left side of the rotating wheel, a main bevel gear is fixedly sleeved on the left side of the connecting rod, the left side of the main bevel gear is rotatably connected with a driven bevel gear through gear meshing, the driven bevel gear is fixedly sleeved on a rotating rod, the lower end of the rotating rod is rotatably arranged in the inner wall of the tool box, the upper end of the rotating rod is fixedly welded on a rotating disc, the rotating disc is in a disc shape, connecting pipes are angularly welded and fixed on the upper end of the rotating disc in an equal angle mode, the connecting pipes are ten in number, the connecting rotating bars are slidably connected inside the connecting rotating bars, threaded holes are formed in the upper end of the connecting rotating bars, the connecting rotating rod upwards penetrates through the tool box, a display opening is formed in the joint, the display opening is formed in the front side of the upper end of the tool box, a supporting rod is welded and fixed to the middle of the upper end of the tool box, and a display board is welded and fixed to the upper end of the supporting rod.

Preferably, the connecting rod rotates to the left side and penetrates through the tool box to be connected, a connecting hole is formed in the connecting position, and the connecting hole is formed in the inner wall of the lower portion of the right side of the tool box.

Preferably, the connecting rotating rod has certain ductility, is a hard rotating rod, and is welded and fixed with a limiting disc at the lower end.

Preferably, the upper end of the limiting disc is fixedly welded with a compression spring, the compression spring is sleeved on the connecting rotating rod and is placed inside the connecting pipe, and the upper end of the compression spring is fixedly welded on the inner wall of the connecting pipe.

Preferably, the sliding ring is circular and is slidably connected to a sliding groove formed in the upper wall of the tool box.

Preferably, the lower extreme fixed mounting of toolbox has the wheel, the wheel is provided with four, and the symmetrical distribution is in the lower extreme four corners department of toolbox.

(III) advantageous effects

The utility model provides a graphic demonstrator for primary school mathematics, which is characterized in that a plurality of pattern models are arranged in a tool box, a rotating handle drives a rotating wheel to rotate to drive a connecting rod to rotate, a rotating rod is driven to rotate to drive a rotating disc to rotate, and further the model is driven to rotate, when the model is arranged in the tool box, a compression spring is in a stretching state, when the model rotates to the position of a display port, the compression spring contracts to automatically push out the model for convenient display, and the model can be touched by students, and corresponding images can be drawn on a display board by chalk, the memory is deepened, then the model is pressed into the tool box, the rotating wheel is continuously rotated to replace the next model, the student operates the model, the rotating handle further automatically pops out different models, the model has certain interest, and is convenient for students to learn, the enthusiasm of students is improved, and the teaching effect is further, the purpose of meeting the use requirement is achieved.

Drawings

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

fig. 2 is a schematic structural view of the overall plan view of the present invention;

FIG. 3 is a schematic view of the structure of the rotating disc of the present invention;

fig. 4 is a schematic view of the tension structure of the compression spring of the present invention;

fig. 5 is a schematic view of the return structure of the compression spring of the present invention;

fig. 6 is a schematic structural diagram of the model of the present invention.

In the figure: 1 toolbox, 2 runners, 3 handles, 4 connecting rods, 5 connecting holes, 6 main bevel gears, 7 driven bevel gears, 8 rotating rods, 9 rotating disks, 10 connecting pipes, 11 connecting rotating rods, 12 limiting disks, 13 compression springs, 14 threaded rods, 15 models, 16 sliding rings, 17 sliding grooves, 18 display ports, 19 supporting rods, 20 display boards and 21 wheels.

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.

Referring to fig. 1-6, the present invention provides a technical solution: a graphic demonstrator for primary mathematics comprises a tool box 1, a rotating wheel 2 is arranged on the right side of the tool box 1, a handle 3 is fixedly arranged at the right end of the rotating wheel 2, a connecting rod 4 is fixedly welded on the left side of the rotating wheel 2, a main bevel gear 6 is fixedly sleeved on the left side of the connecting rod 4, a driven bevel gear 7 is rotatably connected on the left side of the main bevel gear 6 through gear engagement, the driven bevel gear 7 is fixedly sleeved on a rotating rod 8, the lower end of the rotating rod 8 is rotatably arranged in the inner wall of the tool box 1, the upper end of the rotating rod 8 is fixedly welded on a rotating disc 9, the rotating disc 9 is disc-shaped, a connecting pipe 10 is fixedly welded on the upper end of the rotating disc 9 at equal angles, ten connecting pipes 10 are arranged, the connecting rotating rod 11 is slidably connected inside the connecting pipe, a threaded hole is arranged, the top end of the model 15 is provided with a sliding ring 16, the connecting rotating rod 11 upwards penetrates through the tool box 1, a display opening 18 is arranged at the joint, the display opening 18 is arranged at the front side of the upper end of the tool box 1, a support rod 19 is fixedly welded at the middle part of the upper end of the tool box 1, a display board 20 is fixedly welded at the upper end of the support rod 19, the purpose that students operate by themselves is achieved, a handle is rotated to automatically pop out different models, the model has certain interestingness, the students can conveniently learn, the learning enthusiasm of the students is improved, the teaching effect is improved, the use requirement is met, the connecting rod 4 rotates to the left side to penetrate through the tool box 1, the joint is provided with a connecting hole 5, the connecting hole 5 is arranged in the inner wall of the lower part of the right side of the tool box 1, the connecting rotating rod 11 has certain ductility and is a hard rotating rod, the lower end is fixedly welded with a limiting, the compression spring 13 is sleeved on the connecting rotating rod 11 and placed inside the connecting pipe 10, the upper end of the compression spring is welded and fixed on the inner wall of the connecting pipe 10, the sliding ring 16 is circular and is connected in the sliding groove 17 in a sliding mode, the sliding groove 17 is formed in the upper wall of the tool box 1, the lower end of the tool box 1 is fixedly provided with four wheels 21, and the four wheels 21 are symmetrically distributed at four corners of the lower end of the tool box 1.

When the tool box is used, a student holds the handle 3 to drive the rotating wheel 2 to rotate, the connecting rod 4 is driven to rotate, the main bevel gear 6 is driven to rotate, the driven bevel gear 7 is driven to rotate, the rotating rod 8 is driven to rotate, the rotating disc 9 is driven to rotate, the connecting pipe 10 is driven to rotate, when the model 15 is positioned inside the tool box 1, the internal compression spring 13 of the connecting pipe 10 is in a stretching state, the top of the model 15 is in sliding connection with the sliding ring 16, when the model 15 rotates to the position of the display opening 18, the elastic potential energy of the compression spring 13 is converted into kinetic energy to drive the limiting disc 12 to move, the connecting rotating rod 11 is driven to move, the model 15 is further pushed out, the student can conveniently conduct touch learning, the tool box has certain interestingness, corresponding patterns can be drawn on the display board 20, the memory is improved, when the next model 15 needs to be switched, the model 15 is pressed down, the student oneself has been reached and has been operated, rotates the handle and then the different models of auto-eject, has certain interest, makes things convenient for the student to study, and improves the enthusiasm that the student studied, and then improves teaching effect, satisfies user demand's purpose.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The use of the phrase "comprising one of the elements does not exclude the presence of other like elements in the process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A graphic demonstrator for primary mathematics, comprising a tool box (1), characterized in that: the right side of the tool box (1) is provided with a rotating wheel (2), the right end of the rotating wheel (2) is fixedly provided with a handle (3), the left side of the rotating wheel (2) is fixedly welded and fixed with a connecting rod (4), the left end of the connecting rod (4) is fixedly sleeved with a main bevel gear (6), the left side of the main bevel gear (6) is rotatably connected with a driven bevel gear (7) through gear meshing, the driven bevel gear (7) is fixedly sleeved on a rotating rod (8), the lower end of the rotating rod (8) is rotatably installed in the inner wall of the tool box (1), the upper end of the rotating rod is fixedly welded on a rotating disc (9), the rotating disc (9) is disc-shaped, the upper end of the rotating disc is fixedly welded at equal angles with a connecting pipe (10), the connecting pipe (10) is provided with ten connecting rotating rods (11), the inner part of the connecting, and rotate through the gear interlock and be connected with threaded rod (14), the upper end fixed mounting of threaded rod (14) has model (15), model (15) top is provided with slip ring (16), connect bull stick (11) and upwards run through toolbox (1), and seted up show mouth (18) in the junction, the upper end front side in toolbox (1) is seted up in show mouth (18), the upper end middle part welded fastening of toolbox (1) has bracing piece (19), the upper end welded fastening of bracing piece (19) has show board (20).

2. The graphic demonstrator of claim 1, wherein: the connecting rod (4) rotates to the left side to penetrate through the tool box (1), a connecting hole (5) is formed in the connecting position, and the connecting hole (5) is formed in the inner wall of the lower portion of the right side of the tool box (1).

3. The graphic demonstrator of claim 1, wherein: the connecting rotating rod (11) has certain ductility, is a hard rotating rod, and is fixedly welded with a limiting disc (12) at the lower end.

4. A graphic demonstrator for primary mathematics as claimed in claim 3, wherein: the upper end of the limiting disc (12) is fixedly welded with a compression spring (13), the compression spring (13) is sleeved on the connecting rotating rod (11) and is placed inside the connecting pipe (10), and the upper end of the compression spring is fixedly welded on the inner wall of the connecting pipe (10).

5. The graphic demonstrator of claim 1, wherein: the sliding ring (16) is in a ring shape and is connected in a sliding groove (17) in a sliding mode, and the sliding groove (17) is formed in the upper wall of the tool box (1).

6. The graphic demonstrator of claim 1, wherein: the lower extreme fixed mounting of toolbox (1) has wheel (21), wheel (21) are provided with four, and the distribution of symmetry is in the lower extreme four corners department of toolbox (1).