CN214152176U

CN214152176U - Cycloid demonstration teaching aid for advanced math teaching

Info

Publication number: CN214152176U
Application number: CN202120295101.1U
Authority: CN
Inventors: 于长生
Original assignee: Yongcheng Vocational College
Current assignee: Yongcheng Vocational College
Priority date: 2021-02-02
Filing date: 2021-02-02
Publication date: 2021-09-07
Anticipated expiration: 2031-02-02

Abstract

The utility model discloses a higher mathematics teaching is with cycloid demonstration teaching aid relates to the teaching aid field, including the outrigger, the inside drawing board that is equipped with of outrigger, the inboard bottom fixed surface of outrigger is connected with the rack, the rack top is equipped with drive screw, drive screw one end fixedly connected with roll motor, drive screw surface threaded connection has the connecting seat, connecting seat one side is rotated and is connected with the drawing fluted disc, the adjustment tank has been seted up on the drawing fluted disc, the inside drawing mechanism that is equipped with of adjustment tank, a plurality of recesses have been seted up to drawing fluted disc rear side surface, and is a plurality of the mechanism is erased all to install inside the recess. The utility model discloses a driving motor drives two-way drive screw and rotates, and two-way drive screw rotates and drives two movable rods and remove, and two movable rods remove and promote the connecting rod and remove, will erase the piece and put up out the recess, paste on the drawing board, when the fluted disc rollback of drawing, utilize the erasure piece to erase the figure, improve the convenience of using.

Description

Cycloid demonstration teaching aid for advanced math teaching

Technical Field

The utility model relates to a teaching aid field, in particular to cycloid demonstration teaching aid for advanced math teaching.

Background

Cycloid, also called trochoid line and cycloidal line, is defined as the locus formed by a certain point on the boundary of a circle when the circle moves along a straight line in mathematics, and a teacher needs to draw a rough figure on a blackboard during cycloid teaching.

In the prior art, a partial cycloid demonstration device is composed of a roller and other parts, corresponding graphs can be drawn on a drawing board on the device in an ascending mode, however, the graphs on the drawing board are inconvenient to erase, different graphs are drawn next time under the influence, and the use is inconvenient.

Therefore, it is necessary to invent a cycloid demonstration teaching aid for advanced mathematics teaching to solve the above problems.

Disclosure of Invention

An object of the utility model is to provide a cycloid demonstration teaching aid for advanced mathematics teaching to solve the inconvenient problem of erasing of the figure that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a cycloidal demonstration teaching aid for advanced mathematic teaching comprises an outer frame, wherein a drawing board is arranged in the outer frame, a rack is fixedly connected to the surface of the bottom of the inner side of the outer frame, a driving screw is arranged at the top of the rack, one end of the driving screw is fixedly connected with a rolling motor, the surface of the driving screw is in threaded connection with a connecting seat, one side of the connecting seat is rotatably connected with a drawing fluted disc, an adjusting groove is formed in the drawing fluted disc, a drawing mechanism is arranged in the adjusting groove, a plurality of grooves are formed in the rear side surface of the drawing fluted disc, and erasing mechanisms are arranged in the grooves;

the erasing mechanism comprises a bidirectional driving screw, one end of the bidirectional driving screw is fixedly connected with a driving motor, the surface of the bidirectional driving screw is in threaded connection with two movable rods, two ends of the movable rods are fixedly connected with first rotating seats, the first rotating seats are internally rotatably connected with connecting rods, one ends, far away from the first rotating seats, of the connecting rods are rotatably connected with second rotating seats, and one ends of the second rotating seats are fixedly connected with erasing blocks.

Preferably, two the movable rods are symmetrically arranged on two sides of the surface of the bidirectional driving screw rod, and are connected with the inner wall of the groove in a sliding mode, so that the two movable rods can move in the groove in opposite directions.

Preferably, the drawing mechanism comprises a movable mounting seat, wherein the surface of the movable mounting seat is provided with threads, and the movable mounting seat can be fixed at any position on the adjusting groove by matching with a locking nut, so that different cycloid graphs can be drawn.

Preferably, remove mount pad one end fixedly connected with stopper, remove mount pad surface threaded connection and have lock nut, lock nut and stopper can grasp adjustment tank both sides to can effectively fix the removal mount pad.

Preferably, an insertion hole is formed in the movable mounting seat, and a drawing pen is inserted into the insertion hole, so that the drawing pen is convenient to replace.

Preferably, the outrigger bottom rotates and is connected with flexible support column, install locking bolt on the flexible support column for can adjust whole height, thereby can make things convenient for the student to observe.

Preferably, flexible support column bottom fixedly connected with removes the base, remove the base bottom and install a plurality of universal wheels, conveniently remove.

The utility model discloses a technological effect and advantage:

1. the bidirectional driving screw is driven to rotate through the rotation of the output shaft of the driving motor, the bidirectional driving screw drives the two movable rods to move, the two movable rods move to push the connecting rod to move, the erasing block is erected into the groove and attached to the drawing board, and when the drawing fluted disc rolls back, the pattern is erased through the erasing block, so that the use convenience is improved;

2. by arranging the movable mounting seat, the drawing pen can be conveniently replaced by the movable mounting seat, and the movable mounting seat can be fixed by utilizing the locking nut and the limiting block, so that the position adjustment is convenient;

3. through setting up flexible support column, flexible support column can adjust whole height to can make things convenient for the student to observe, and can utilize a plurality of universal wheels to conveniently remove.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a rear view of the drawing fluted disc structure of the present invention.

Fig. 3 is an enlarged view of a structure in fig. 2.

Fig. 4 is a schematic structural view of the movable mounting base of the present invention.

In the figure: 1. an outer frame; 2. drawing boards; 3. a rack; 4. a drive screw; 5. a rolling motor; 6. a connecting seat; 7. drawing a fluted disc; 8. an adjustment groove; 9. a drawing mechanism; 10. an erasing mechanism; 11. a bi-directional drive screw; 12. a drive motor; 13. a movable rod; 14. a first rotating base; 15. a connecting rod; 16. a second rotating base; 17. erasing the block; 18. moving the mounting seat; 19. a limiting block; 20. a locking nut; 21. an insertion hole; 22. a telescopic support column; 23. a locking bolt; 24. moving the base; 25. a universal wheel.

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.

The utility model provides a cycloid demonstration teaching aid for advanced math teaching as shown in figures 1-4, which comprises an outer frame 1 as shown in figures 1-3, wherein a drawing board 2 is arranged in the outer frame 1, a rack 3 is fixedly connected with the surface of the bottom of the inner side of the outer frame 1, a driving screw rod 4 is arranged on the top of the rack 3, one end of the driving screw rod 4 is fixedly connected with a rolling motor 5, the surface of the driving screw rod 4 is in threaded connection with a connecting seat 6, one side of the connecting seat 6 is rotatably connected with a drawing fluted disc 7, an adjusting groove 8 is arranged on the drawing fluted disc 7, a drawing mechanism 9 is arranged in the adjusting groove 8, the driving screw rod 4 can be driven to rotate by the rotation of an output shaft of the rolling motor 5, the driving screw rod 4 drives the connecting seat 6 to move, the connecting seat 6 drives the drawing fluted disc 7 to roll on the rack 3, thereby the cycloid drawing can be completed, a plurality of grooves are formed in the rear side surface of the drawing fluted disc 7, so that the erasing block 17 is prevented from erasing the graph in the drawing process;

secondly, the erasing mechanism 10 is installed inside a plurality of grooves, the erasing mechanism 10 comprises a bidirectional driving screw 11, one end of the bidirectional driving screw 11 is fixedly connected with a driving motor 12, the surface of the bidirectional driving screw 11 is in threaded connection with two movable rods 13, the two movable rods 13 are symmetrically arranged on two sides of the surface of the bidirectional driving screw 11, the two movable rods 13 are in sliding connection with the inner wall of the groove, so that the two movable rods 13 can move oppositely inside the groove, two ends of the movable rods 13 are both fixedly connected with a first rotating seat 14, the inside of the first rotating seat 14 is in rotating connection with a connecting rod 15, one end of the connecting rod 15, which is far away from the first rotating seat 14, is in rotating connection with a second rotating seat 16, one end of the second rotating seat 16 is fixedly connected with an erasing block 17, and the output shaft of the driving motor 12 can be utilized to rotate to drive the bidirectional driving screw 11 to rotate, the bidirectional driving screw 11 rotates to drive the two movable rods 13 to move, the two movable rods 13 move to push the connecting rod 15 to move, the erasing block 17 is erected out of a groove and attached to the drawing board 2, and when the drawing fluted disc 7 rolls back, the pattern is erased by the erasing block 17.

As shown in fig. 1 and 4, the drawing mechanism 9 includes a movable mounting seat 18, the surface of the movable mounting seat 18 is provided with threads, and the movable mounting seat 18 can be fixed at any position on the adjusting groove 8 by matching with a locking nut 20, so that different cycloid patterns can be drawn, one end of the movable mounting seat 18 is fixedly connected with a limiting block 19, the surface of the movable mounting seat 18 is connected with the locking nut 20 by threads, the locking nut 20 and the limiting block 19 can clamp two sides of the adjusting groove 8, so that the movable mounting seat 18 can be effectively fixed, an insertion hole 21 is formed inside the movable mounting seat 18, a drawing pen is inserted into the insertion hole 21, and the drawing pen is conveniently replaced.

As shown in fig. 1, the bottom of the outer frame 1 is rotatably connected with a telescopic supporting column 22, a locking bolt 23 is installed on the telescopic supporting column 22, so that the whole height can be adjusted, the student can observe conveniently, a movable base 24 is fixedly connected with the bottom end of the telescopic supporting column 22, a plurality of universal wheels 25 are installed at the bottom of the movable base 24, and the movable base is convenient to move.

The utility model discloses the theory of operation:

when the utility model is used in practice, the rolling motor 5 is started, the output shaft of the rolling motor 5 rotates to drive the driving screw rod 4 to rotate, the driving screw rod 4 rotates to drive the connecting seat 6 to move, and the connecting seat 6 moves to drive the drawing fluted disc 7 to roll on the rack 3, so that the drawing of cycloid can be completed;

then, the output shaft of the driving motor 12 rotates to drive the bidirectional driving screw 11 to rotate, the bidirectional driving screw 11 rotates to drive the two movable rods 13 to move, the two movable rods 13 move to push the connecting rod 15 to move, the erasing block 17 is erected into a groove and attached to the drawing board 2, and when the drawing fluted disc 7 rolls back, the pattern is erased by the erasing block 17, so that the use convenience is improved.

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 and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a cycloid demonstration teaching aid for advanced math teaching which characterized in that: the drawing board type external frame comprises an external frame (1), wherein a drawing board (2) is arranged inside the external frame (1), the surface of the bottom of the inner side of the external frame (1) is fixedly connected with a rack (3), the top of the rack (3) is provided with a driving screw (4), one end of the driving screw (4) is fixedly connected with a rolling motor (5), the surface of the driving screw (4) is in threaded connection with a connecting seat (6), one side of the connecting seat (6) is rotatably connected with a drawing fluted disc (7), an adjusting groove (8) is formed in the drawing fluted disc (7), a drawing mechanism (9) is arranged inside the adjusting groove (8), a plurality of grooves are formed in the rear side surface of the drawing fluted disc (7), and erasing mechanisms (10) are arranged inside the grooves;

erase mechanism (10) including two-way drive screw (11), two-way drive screw (11) one end fixedly connected with driving motor (12), two-way drive screw (11) surface threaded connection has two movable rods (13), the first seat (14) that rotates of the equal fixedly connected with in movable rod (13) both ends, first seat (14) internal rotation that rotates is connected with connecting rod (15), the one end that first seat (14) rotated is kept away from in connecting rod (15) rotates and is connected with the second and rotates seat (16), seat (16) one end fixedly connected with erasing block (17) is rotated to the second.

2. The cycloid demonstration teaching aid for higher mathematics teaching of claim 1, characterized in that: two movable rods (13) are symmetrically arranged on two sides of the surface of the bidirectional driving screw rod (11), and the two movable rods (13) are connected with the inner wall of the groove in a sliding mode.

3. The cycloid demonstration teaching aid for higher mathematics teaching of claim 1, characterized in that: the drawing mechanism (9) comprises a movable mounting seat (18), and the surface of the movable mounting seat (18) is provided with threads.

4. The cycloid demonstration teaching aid for higher mathematics teaching of claim 3, characterized in that: the movable mounting seat is characterized in that one end of the movable mounting seat (18) is fixedly connected with a limiting block (19), and the surface of the movable mounting seat (18) is in threaded connection with a locking nut (20).

5. The cycloid demonstration teaching aid for higher mathematics teaching of claim 3, characterized in that: an insertion hole (21) is formed in the movable mounting seat (18), and a drawing pen is inserted into the insertion hole (21).

6. The cycloid demonstration teaching aid for higher mathematics teaching of claim 1, characterized in that: the bottom of the outer frame (1) is rotatably connected with a telescopic supporting column (22), and a locking bolt (23) is installed on the telescopic supporting column (22).

7. The cycloid demonstration teaching aid for higher mathematics teaching of claim 6, characterized in that: the telescopic supporting column (22) is fixedly connected with a movable base (24) in the bottom end, and a plurality of universal wheels (25) are installed at the bottom of the movable base (24).