CN210129297U

CN210129297U - Novel demonstration is used in mathematical education explanation device

Info

Publication number: CN210129297U
Application number: CN201920105827.7U
Authority: CN
Inventors: 唐天国
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-01-22
Filing date: 2019-01-22
Publication date: 2020-03-06
Anticipated expiration: 2029-01-22

Abstract

The utility model provides a novel demonstration is used in mathematical education explanation device, the on-line screen storage device comprises a base, four corners of base bottom surface are all articulated to be connected and are removed the wheel, the outside of removing the wheel is equipped with the brake block, the brake block is articulated to be connected with removing the wheel, the middle part fixed mounting electric telescopic handle of base top surface, electric telescopic handle's top is equipped with the demonstration board, the bearing fixed mounting is passed through with electric telescopic handle's expansion end to the demonstration board, the equal fixed mounting diaphragm in the preceding upper and lower both sides of demonstration board, first spout is all seted up to the inboard of diaphragm, be equipped with a montant in two first spouts, the back fixed mounting. The utility model discloses can play the animation, attract student's attention, arouse student's interest in learning, when explaining the graphic question, can directly pass through display device with the image and show, need not draw, practice thrift the plotting time, when blackboard content need be changed, can erase by a large scale, save time improves classroom efficiency.

Description

Novel demonstration is used in mathematical education explanation device

Technical Field

The utility model belongs to teaching is presentation device for explanation field, and specifically speaking is a novel presentation device for mathematical education explanation.

Background

Mathematics is an important course in the teaching, the good or bad direct relation of mathematics education effect arrives the formation of student's logical thinking, the teaching stage of whole blackboard-writing is mostly still stopped to current mathematics teaching mode, partial classroom presentation device can only be put on the podium, this kind of teaching mode is boring and directly perceived inadequately, students that nature activity wave is good are difficult to be interested in the teaching content, so the teaching effect is not good, and time waste when complicated image is drawn, when blackboard content need be updated, erase extravagant classroom time, influence the progress of going to class.

SUMMERY OF THE UTILITY MODEL

The utility model provides a novel mathematics teaching is demonstration for explanation device for solve the defect among the prior art.

The utility model discloses a following technical scheme realizes:

a novel demonstration device for teaching explanation of mathematics comprises a base, four corners of the bottom surface of the base are hinged with a movable wheel, the outer side of the movable wheel is provided with a brake block, the brake block is hinged with the movable wheel, the middle part of the top surface of the base is fixedly provided with an electric telescopic rod, a demonstration board is arranged above the electric telescopic rod, the movable ends of the demonstration board and the electric telescopic rod are fixedly arranged through bearings, the upper side and the lower side of the front surface of the demonstration board are fixedly provided with transverse plates, the inner side of each transverse plate is provided with a first chute, two first chutes are internally provided with a vertical rod, the rear surface of each vertical rod is fixedly provided with a mounting plate wiping strip, the plate wiping strip is contacted with the front surface of the demonstration board, the inner side of each transverse plate is provided with a second chute, the second chute is positioned on the left side of each transverse plate and is positioned on the front side of the first chute, the left side of the transverse, the slide bar is arranged in corresponding second spout and can move along the second spout, and the left side fixed mounting control center of demonstration board bottom surface, control center and display screen electric connection.

As the novel demonstration device for mathematical education explanation, the upper end and the lower end of the vertical rod are hinged with the connecting roller.

The novel demonstration device for mathematical education explanation is characterized in that a first handle is fixedly mounted in the middle of the front of the vertical rod.

As the novel demonstration device for mathematical education explanation, the bottom surface of the second sliding groove of the lower side is provided with the plurality of arc-shaped grooves, the arc-shaped grooves are internally provided with the balls, and the balls are in contact with the bottom surface of the sliding strip of the lower side.

As above a novel presentation device is used in mathematical education explanation, the inside top surface of second spout of upside set up the recess, the right side fixed mounting slider of the draw runner top surface of upside, the slider is arranged in the recess and can be followed the recess and slided.

The novel demonstration device for mathematical education explanation is characterized in that a second handle is fixedly installed in the middle of the left side of the display screen.

The utility model has the advantages that: the utility model discloses can play the animation, attract student's attention, arouse student's interest in learning, when explaining the graphic problem, can directly show the image through display device, do not need the drawing, practice thrift the drawing time, when the blackboard content needs to be changed, can erase by a large scale, save time, improve classroom efficiency; when the utility model is used, the device is pushed, the moving wheel rotates, the device is moved to a proper position, the brake block is pressed down, the position of the device is fixed, the electric telescopic rod is opened, the electric telescopic rod extends, the length of the demonstration board is adjusted through the electric telescopic rod according to the height of a teacher, the demonstration board is adjusted to a proper height, the control center is opened, the control center displays the courseware content through the display screen, the display screen can display animation and attract the attention of the student, when the graph is explained, the display screen is pushed to the left side, the display screen drives the slide bar to slide to the left side along the second groove, the image is displayed on the display screen, the teacher points the image with the teaching rod to explain, the explaining process is written on the left side of the demonstration board, when the left side is not written, the display screen is pushed to the right side, the display panel drives the slide bar to slide to the right side along the second groove, when the slide bar moves to the rightmost side of the second groove, the display screen blocks the left side of demonstration board, the teacher continues to write the process of solving the problem on the right side of demonstration board, point at the image with the religion pole when writing, guide the student, after writing the completion, push away the display screen to leftmost side, let classmates arrange in order this problem, the in-process of arrangement, rotate the demonstration board, the demonstration board rotates along electric telescopic handle, care for the classmates of both sides, make classmates can both see clearly the typeface of blackboard, the student arranges in order and accomplishes the back, promote the montant and remove to the left side, the montant drives the blackboard eraser strip and moves to the left side, the typeface of board eraser strip on to the demonstration board is cleaned, control the round trip movement montant, the board eraser strip cleans the handwriting on the demonstration board totally, clean more swiftly, practice thrift classroom time.

Drawings

In order to more clearly illustrate the embodiments of the present invention 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 described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.

Fig. 1 is a schematic structural diagram of the present invention; FIG. 2 is an enlarged view of the view from the direction A of FIG. 1; FIG. 3 is an enlarged view of a portion I of FIG. 1; fig. 4 is an enlarged view of a portion ii of fig. 1.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

A novel demonstration device for teaching and explaining mathematics comprises a base 1, a movable wheel 2 is hinged and connected with four corners of the bottom surface of the base 1, a brake block 3 is arranged on the outer side of the movable wheel 2, the brake block 3 is hinged and connected with the movable wheel 2, an electric telescopic rod 4 is fixedly arranged in the middle of the top surface of the base 1, a demonstration board 5 is arranged above the electric telescopic rod 4, the demonstration board 5 is fixedly arranged with the movable end of the electric telescopic rod 4 through a bearing, transverse plates 6 are fixedly arranged on the upper side and the lower side of the front surface of the demonstration board 5, first chutes 7 are arranged on the inner sides of the transverse plates 6, a vertical rod 8 is arranged in each of the two first chutes 7, wiping strips 9 are fixedly arranged on the back surfaces of the vertical rods 8, the wiping strips 9 are in contact with the front surface of the demonstration board 5, a second chute 10 is arranged on the inner side of the transverse plate 6, the second chute 10 is positioned on the left side of the transverse plate 6 and on, demonstration board 5's left side is equipped with display screen 11, the equal fixed mounting draw runner 12 in the upper and lower both sides of display screen 11, and corresponding second spout 10 is arranged in and can be followed to draw runner 12 and remove, and demonstration board 5's bottom surface's left side fixed mounting control center 13,

control center

13 and 11 electric connection of display screen are the well-known technique in this field, do not explain here again. The utility model discloses can play the animation, attract student's attention, arouse student's interest in learning, when explaining the graphic problem, can directly show the image through display device, do not need the drawing, practice thrift the drawing time, when the blackboard content needs to be changed, can erase by a large scale, save time, improve classroom efficiency; when the utility model is used, the device is pushed, the moving wheel 2 rotates, the device is moved to a proper position, the brake block 3 is pressed, the position of the device is fixed, the electric telescopic rod 4 is opened, the electric telescopic rod 4 extends, the length of the demonstration board 5 is adjusted through the electric telescopic rod 4 according to the height of a teacher, the demonstration board 5 is adjusted to a proper height, the control center 13 is opened, the control center 13 displays the courseware content through the display screen 11, the display screen 11 can display animation and attract the attention of students, when explaining the graph, the display screen 11 is pushed to the left side, the display screen 11 drives the slide bar 12 to slide to the left side along the second groove 10, the image is displayed on the display screen 11, the teacher indicates the image for explaining by using the teaching rod, simultaneously, the explaining process is written on the left side of the demonstration board 5, when the left side is not opened, the display screen 11 is pushed to the right side, the display screen 11 drives the slide bar 12 to slide to the right side along the second groove 10, when the slide bar 12 moves to the rightmost side of the second groove 10, the display screen 11 blocks the left side of the demonstration board 5, a teacher continues to write the problem solving process on the right side of the demonstration board 5, the teacher points at an image with a teaching rod while writing, the student is guided, after the writing is completed, the display screen 11 is pushed to the leftmost side, students can sort the problem, in the sorting process, the demonstration board 5 is rotated, the demonstration board 5 rotates along the electric telescopic rod 4, the students on two sides are cared for, the fonts of the blackboard can be seen clearly by the students, after the sorting of the students is completed, the vertical bar 8 is pushed to move to the left side, the vertical bar 8 drives the board wiping bar 9 to move to the left side, the board wiping bar 9 wipes the fonts on the demonstration board 5, the vertical bar 8 moves back and forth left, the board wiping bar 9 wipes the fonts on the demonstration board 5 cleanly, the wiping is faster, and the classroom time is saved.

Specifically, as shown in the drawings, the upper and lower ends of the vertical rod 8 are hinged to the rollers 14. The vertical rod 8 drives the roller 14 to slide along the first sliding groove 7, so that the friction force between the vertical rod 8 and the first sliding groove 7 is reduced, and the vertical rod 8 moves more smoothly along the first sliding groove 7.

Specifically, as shown in the drawings, a first handle 15 is fixedly installed in the middle of the front of the vertical rod 8. The vertical plate 8 is driven to move left and right through the first handle 15, and the vertical plate 8 moves left and right more conveniently.

Further, as shown in the drawings, a plurality of arc-shaped grooves 16 are formed in the bottom surface of the second sliding chute 10 on the lower side in the embodiment, balls 17 are arranged in the arc-shaped grooves 16, and the balls 17 are in contact with the bottom surface of the slide bar 12 on the lower side. When the slide bar 12 on the lower side moves along the second slide groove 10 on the lower side, the balls 17 are driven to rotate along the arc-shaped grooves 16, sliding friction between the slide bar 12 and the second slide groove 10 is changed into rolling friction between the balls 17 and the slide bar 12, friction force between the slide bar 12 on the lower side and the second slide groove 10 on the lower side is reduced, and the movement is smoother.

Furthermore, as shown in the drawings, a groove 18 is formed in the top surface of the inside of the second sliding chute 10 at the upper side in the embodiment, a sliding block 19 is fixedly installed at the right side of the top surface of the slide bar 12 at the upper side, and the sliding block 19 is placed in the groove 18 and can slide along the groove 18. When the slide block 19 moves to the leftmost side of the groove 18, the slide block 19 stops moving, and the slide block 19 and the groove 18 play a limiting role to prevent the slide bar 12 from sliding out of the second sliding groove 10.

Further, as shown in the drawings, the second handle 20 is fixedly installed at the middle portion of the left side of the display screen 11 according to the embodiment. The second handle 20 is pulled to drive the display screen 11 to move left and right, so that the operation is more convenient.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. The utility model provides a novel demonstration is used in mathematical education explanation device which characterized in that: comprises a base (1), four corners of the bottom surface of the base (1) are hinged with movable wheels (2), the outer sides of the movable wheels (2) are provided with brake pads (3), the brake pads (3) are hinged with the movable wheels (2), the middle part of the top surface of the base (1) is fixedly provided with an electric telescopic rod (4), a demonstration board (5) is arranged above the electric telescopic rod (4), the demonstration board (5) is fixedly arranged with the movable end of the electric telescopic rod (4) through a bearing, the upper side and the lower side of the front surface of the demonstration board (5) are fixedly provided with transverse boards (6), the inner sides of the transverse boards (6) are provided with first chutes (7), two first chutes (7) are internally provided with a vertical rod (8), the rear surface of the vertical rod (8) is fixedly provided with a wiping strip (9), the wiping strip (9) is contacted with the front surface of the demonstration board (5), the inner sides of the transverse boards (6, second spout (10) are located the left side of diaphragm (6) and are located the front side of first spout (7), the left surface parallel and level of second spout (10) and diaphragm (6), the left side of demonstration board (5) is equipped with display screen (11), the equal fixed mounting draw runner (12) in upper and lower both sides of display screen (11), corresponding second spout (10) are arranged in and the second spout (10) that can be followed in draw runner (12) removal, left side fixed mounting control center (13) of demonstration board (5) bottom surface, control center (13) and display screen (11) electric connection.

2. The novel demonstration device for mathematics teaching explanation according to claim 1, characterized in that: the upper end and the lower end of the vertical rod (8) are hinged with the roller (14).

3. The novel demonstration device for mathematics teaching explanation according to claim 1, characterized in that: a first handle (15) is fixedly arranged in the middle of the front of the vertical rod (8).

4. The novel demonstration device for mathematics teaching explanation according to claim 1, characterized in that: the bottom surface of the second sliding groove (10) on the lower side is provided with a plurality of arc-shaped grooves (16), the arc-shaped grooves (16) are internally provided with balls (17), and the balls (17) are contacted with the bottom surface of the sliding strip (12) on the lower side.

5. The novel demonstration device for mathematics teaching explanation according to claim 1, characterized in that: a groove (18) is formed in the top surface of the inner portion of the second sliding groove (10) on the upper side, a sliding block (19) is fixedly installed on the right side of the top surface of the sliding strip (12) on the upper side, and the sliding block (19) is arranged in the groove (18) and can slide along the groove (18).

6. The novel demonstration device for mathematics teaching explanation according to claim 1, characterized in that: and a second handle (20) is fixedly arranged in the middle of the left side of the display screen (11).