CN215204224U

CN215204224U - A calculate presentation device for mathematical education

Info

Publication number: CN215204224U
Application number: CN202121218788.5U
Authority: CN
Inventors: 牟云娴
Original assignee: Dongying Vocational College Of Science & Technology
Current assignee: Dongying Vocational College Of Science & Technology
Priority date: 2021-06-02
Filing date: 2021-06-02
Publication date: 2021-12-17
Anticipated expiration: 2031-06-02

Abstract

The utility model relates to the technical field of teaching aids, in particular to a calculation demonstration device for mathematical education, which comprises a bracket, wherein the bracket comprises a front bracket, a rear bracket and a connecting rod, the height of the front bracket is lower than that of the rear bracket, a rotatable first rotating shaft and a rotatable second rotating shaft are erected on the rear bracket, and a rotatable third rotating shaft is erected on the front bracket; the first winding drum is fixedly sleeved on the first rotating shaft and is positioned at the top of the rear support; the second winding drum is fixedly sleeved on the second rotating shaft and is positioned in the middle of the rear support; the steering cylinder is fixedly sleeved on the third rotating shaft and is positioned at the top of the front bracket; the writing pad is fixed on the connecting rod; the writing paper between the second winding drum and the steering drum forms an inclined shape with the same angle as the writing base plate, and the writing paper and the writing base plate are close to fit with each other; the utility model discloses can remain the process of mathematics calculation demonstration, make things convenient for later stage inspection and review.

Description

A calculate presentation device for mathematical education

Technical Field

The utility model relates to a teaching aid technical field, concretely relates to calculate presentation device for mathematical education.

Background

In the teaching of mathematical education, calculation demonstration is often needed so as to show the derivation process for teaching. If simply write on the blackboard, can face the not enough condition of space of a page, also be convenient for follow-up inspection careless and mistake, current presentation device is inconvenient to remain the blackboard writing of writing and is used inconveniently.

SUMMERY OF THE UTILITY MODEL

First, technical problem to be solved

An object of the utility model is to provide a calculate presentation device for mathematical education can remain the process of mathematics calculation demonstration, makes things convenient for later stage inspection and review.

Second, technical scheme

The utility model discloses a realize through following technical scheme: the utility model provides a calculation presentation device for mathematical education, include:

the support comprises a front support, a rear support and a connecting rod for connecting the front support and the rear support, the front support is lower than the rear support, a rotatable first rotating shaft and a rotatable second rotating shaft are erected on the rear support, and a rotatable third rotating shaft is erected on the front support;

the first winding drum is fixedly sleeved on the first rotating shaft and is positioned at the top of the rear support;

the second winding drum is fixedly sleeved on the second rotating shaft and is positioned in the middle of the rear support;

the steering cylinder is fixedly sleeved on the third rotating shaft and is positioned at the top of the front bracket;

the writing base plate is fixed on the connecting rod;

the writing paper, writing paper winds on the second winding drum and is connected with the first winding drum after bypassing the steering drum, the writing paper between the second winding drum and the steering drum forms the same inclination with the angle of the writing base plate, and the writing paper and the writing base plate are close to the joint.

Further, the inclination angle of the writing pad ranges from 30 to 70 degrees.

Further, be provided with paper device on the writing backing plate, press paper device including fixing rotation seat and the depression bar at the writing backing plate upper surface, rotate the seat and be two, the depression bar rotates between being connected with the rotation seat, the depression bar can use to rotate the seat and rotate to writing backing plate as the center and be close to and keep away from.

Furthermore, the paper pressing device further comprises a first magnetic block fixed at the end of the pressing rod and a second magnetic block arranged on the writing base plate, and the first magnetic block and the second magnetic block are magnetically attracted.

Further, writing backing plate surface still is provided with drive assembly, drive assembly includes driving motor, connects driving gear, the fixed driven gear who establishes on first pivot at the driving motor tip, fix the cover, pass through chain drive between driving gear and the driven gear.

Furthermore, an outer cover shell used for protecting the support is arranged outside the support, an observation window is formed in the surface of the outer cover shell, a region of writing paper between the two pressure bars is arranged right below the observation window, and the length and the width of the observation window correspond to the length and the distance between the two pressure bars; and the surface of the outer housing is provided with a control switch which is used for controlling the forward and reverse rotation and the starting and stopping of the driving motor.

Third, beneficial effect

Compared with the prior art, the utility model, following beneficial effect has:

1. the utility model provides a calculation presentation device for mathematical education writes paper through the rolling of a rolling section of thick bamboo, thereby writes the plane of writing that thereby is close to the laminating formation slope between paper and the writing backing plate, in the use, can constantly the rolling write paper to uninterruptedly carry out the mathematics calculation demonstration, and leave the demonstration process in reserving on writing paper, conveniently after calculating the completion, inspect careless and warm again and study.

2. Through setting up paper pressing device, will write paper and tightly press close to on writing the backing plate, conveniently write.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

FIG. 2 is a partial schematic view of the platen;

fig. 3 is a schematic structural view of the outer casing.

1-a scaffold; 11-a front support; 12-a rear bracket; 13-a first shaft; 14-a second shaft; 15-a third rotating shaft; 2-a first take-up reel; 3-a second take-up reel; 4-a steering cylinder; 5-writing pad; 6-writing paper; 7-a paper pressing device; 71-a rotating seat; 72-a compression bar; 73-a first magnetic block; 74-a second magnetic block; 8-a drive assembly; 81-driving a motor; 82-a drive gear; 83-driven gear; 84-a chain; 9-an outer housing; 91-a viewing window; 92-control switch.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1, the utility model provides a calculation presentation device for mathematical education, including support 1, support 1 includes fore-stock 11, after-poppet 12 and is used for connecting the connecting rod of fore-stock 11 and after-poppet 12, the height of fore-stock 11 is less than after-poppet 12, forms the show surface of slope; a rotatable first rotating shaft 13 and a rotatable second rotating shaft 14 are erected on the rear bracket 12, and a rotatable third rotating shaft 15 is erected on the front bracket 11; wherein, the first winding drum 2 is fixedly sleeved outside the first rotating shaft 13, the second winding drum 3 is fixedly sleeved outside the second rotating shaft 14, the steering drum 4 is fixedly sleeved outside the third rotating shaft 15, the first winding drum 2 is positioned on top of the rear bracket 12, the second winding drum 3 is positioned in the middle of the rear bracket 12, the steering drum 4 is positioned on top of the front bracket 11, preferably, the height of the steering cylinder 4 is not lower than that of the second winding cylinder 3, the writing pad 5 is fixedly connected to the connecting rod, the writing paper 6 is wound on the second winding drum 3, the writing paper 6 is connected with the first winding drum 2 after passing through the steering drum 4, the writing paper 6 between the second take-up reel 3 and the steering reel 4 is formed to be inclined at the same angle as the writing pad 5, the range of the inclination angle is 30 degrees to 70 degrees, and the writing paper 6 is close to the writing pad 5.

In this embodiment, the distance between the first winding drum 2 and the second winding drum 3 is 1.2m, and the diameters of the first winding drum 2, the second winding drum 3 and the steering drum 4 are all 10 cm; the gap between the writing pad 5 and the writing paper 6 is less than 1 mm.

When the multifunctional writing paper support is used, mathematics calculation demonstration is carried out on the writing paper 6, and the writing paper 6 and the writing base plate 5 are close to each other, so that the writing base plate 5 forms a support below the writing paper 6, and writing is facilitated. In the use, rotate first pivot 13, first pivot 13 drives first receipts reel 2 and rotates to roll writing paper 6, make second receipts reel 3 go up the ground writing paper 6 and constantly roll out, conveniently write. After calculation is completed, the writing paper 6 can be rotated and unfolded again for backtracking and omission checking.

As an embodiment of the present invention, please refer to fig. 2, the writing pad 5 is provided with a paper pressing device 7, the paper pressing device 7 includes a rotating seat 71 and a pressing rod 72 fixed on the upper surface of the writing pad 5, the number of the rotating seats 71 is two, the pressing rod 72 is connected with the rotating seat 71 in a rotating manner, and the pressing rod 72 can rotate to approach and keep away from the writing pad 5 by using the rotating seat 71 as a center. The paper pressing device 7 further comprises a first magnetic block 73 fixed at the end of the pressing rod 72 and a second magnetic block 74 arranged on the writing underlay 5, and the first magnetic block 73 and the second magnetic block 74 are magnetically attracted. When the writing pen is used, the pressing rod 72 can be rotated and unfolded, after the position of the writing paper 6 is replaced, the pressing rod 72 is put down again, the first magnetic block 73 and the second magnetic block 74 attract each other, and the writing paper 6 is tightly pressed close to and tightly pressed on the writing base plate 5, so that writing is facilitated.

As an embodiment of the present invention, please refer to fig. 1, the surface of the writing pad 5 is further provided with a driving assembly 8, the driving assembly 8 includes a driving motor 81, a driving gear 82 connected to the end of the driving motor 81, and a driven gear 83 fixedly sleeved on the first rotating shaft 13, and the driving gear 82 and the driven gear 83 are driven by a chain 84. In this embodiment, drive gear 82 through driving motor 81 and rotate, driving gear 82 drives driven gear 83 initiative through chain 84 drive belt, and driven gear 83 drives first rotation pivot to carry out the rolling and write paper 6, the utility model discloses in replace artifical rolling through the mode of mechanical rolling, it is more convenient to use.

As an embodiment of the present invention, please refer to fig. 3, an outer casing 9 for protecting the support 1 is disposed outside the support 1, an observation window 91 is disposed on a surface of the outer casing 9, a region of the writing paper 6 between the two pressing rods 72 is directly under the observation window 91, and a length and a width of the observation window 91 correspond to a length and a distance between the two pressing rods 72; the surface of the outer housing 9 is provided with a control switch 92, the control switch 92 is used for controlling the forward and reverse rotation and the start and stop of the driving motor 81, and the length of the observation window 91 in this embodiment is 2m and the width is 1 m. The position of observation window 91 is promptly the utility model discloses a write the region, outer housing 9 protects support 1 body to improve the aesthetic property of this device to a certain extent, through control switch 92 control driving motor 81's rotation, thereby write the rolling of paper 6, make things convenient for the mr to carry out the calculation demonstration of mathematical content.

The above-described embodiments are merely illustrative of the preferred embodiments of the present invention and are not intended to limit the spirit and scope of the present invention. Without departing from the design concept of the present invention, various modifications and improvements made by the technical solution of the present invention by those skilled in the art should fall into the protection scope of the present invention, and the technical contents claimed by the present invention have been fully recorded in the claims.

Claims

1. A dead reckoning presentation device for mathematical education, comprising:

the writing base plate is fixed on the connecting rod;

2. A dead reckoning demonstration device for mathematical education as claimed in claim 1 wherein the angle of inclination of said writing pad ranges from 30 ° to 70 °.

3. The reckoning demonstration device for mathematics teaching as claimed in claim 1, wherein said writing pad is provided with a paper pressing device, said paper pressing device comprises two rotating seats and two pressing rods fixed on the upper surface of the writing pad, said two rotating seats are rotatably connected with each other, and said pressing rods can rotate to approach and leave from the writing pad by using the rotating seats as the center.

4. The reckoning demonstration device for mathematical education as claimed in claim 3, wherein the paper pressing device further comprises a first magnetic block fixed at the end of the pressing rod and a second magnetic block arranged on the writing base plate, and the first magnetic block and the second magnetic block are magnetically attracted.

5. The calculating demonstration device for the mathematics teaching as claimed in claim 1, wherein the writing underlay surface is further provided with a driving assembly, the driving assembly comprises a driving motor, a driving gear connected to the end of the driving motor, and a driven gear fixedly sleeved on the first rotating shaft, and the driving gear and the driven gear are in transmission through a chain.

6. The calculation demonstration device for the mathematical education as claimed in claim 3, wherein an outer cover shell for protecting the support is arranged outside the support, an observation window is arranged on the surface of the outer cover shell, a region of writing paper between the two compression bars is right under the observation window, and the length and width of the observation window correspond to the length and the distance between the two compression bars; and the surface of the outer housing is provided with a control switch which is used for controlling the forward and reverse rotation and the starting and stopping of the driving motor.