CN215770157U

CN215770157U - A explanation device for education and teaching

Info

Publication number: CN215770157U
Application number: CN202120243060.1U
Authority: CN
Inventors: 彭开秀; 毕晓君; 黎燕
Original assignee: SICHUAN COLLEGE OF TRADITIONAL CHINESE MEDICINE
Current assignee: SICHUAN COLLEGE OF TRADITIONAL CHINESE MEDICINE
Priority date: 2021-01-28
Filing date: 2021-01-28
Publication date: 2022-02-08
Anticipated expiration: 2031-01-28

Abstract

The utility model discloses an explanation device for education and teaching, which belongs to the field of teaching tools and comprises a supporting plate, wherein four corners of the lower end of the supporting plate are respectively and rotatably provided with a first rotating shaft, the lower end of the first rotating shaft is fixedly provided with a roller, the supporting plate is fixedly provided with an air cylinder, the lower end of the air cylinder is provided with a piston rod, the lower end of the piston rod is fixedly connected with a supporting seat, the display plate can rotate forwards and backwards through a second rotating shaft, the front and back sides of the display plate can be conveniently used, the using area in teaching is increased, the sponge eraser can be conveniently moved leftwards and rightwards through a sliding trolley positioned in a sliding groove, the sponge eraser can be more conveniently and laborsaving in moving leftwards and rightwards due to the fact that the sliding friction force is replaced by the rolling friction force, when the sponge eraser is moved to two sides through the width relation of the sponge eraser, the overturning of the display plate can not be influenced, the supporting seat is put down through the action, replace the gyro wheel support originally, increased the holistic stability of device, reduce the teacher and when writing, take place the condition of quivering.

Description

A explanation device for education and teaching

Technical Field

The utility model relates to the field of teaching aids, in particular to an explanation device for education and teaching.

Background

The training room can not adopt the blackboard similar to that in the classroom of school to explain for the student because the restriction in place under the general condition, and it is convenient to mostly adopt to remove, and the less show board of volume gives student's teaching, and the degree of teaching is deepened, and the blackboard writing is often just big more than long-pending, and the next lesson of many cases needs blackboard writing many times more talent, if utilize traditional blackboard eraser, must delay student's time very much. The explanation device on the existing market is mostly convenient to move, but the stability is poor, the teacher vibrates very easily when writing on a blackboard, and lacks the device of wiping the show board fast, some general structure is complicated, the troublesome poeration hardly adapts to the classroom teaching of fast rhythm, and the use experience is relatively poor.

SUMMERY OF THE UTILITY MODEL

Aiming at the problems in the prior art, the utility model aims to provide an explanation device for education and teaching, wherein the sliding trolley positioned in the sliding groove is convenient for the sponge eraser to move left and right, the sliding friction force is replaced by the rolling friction force, so that the sponge eraser can move left and right more conveniently and more conveniently, labor is saved, the supporting seat is put down under the action of the supporting seat to replace the original roller support, the integral stability of the device is improved, and the vibration condition of a teacher during writing is reduced.

In order to solve the above problems, the present invention adopts the following technical solutions.

An explanation device for education and teaching comprises a supporting plate, wherein four corners of the lower end of the supporting plate are respectively and rotatably provided with a first rotating shaft, the lower end of the first rotating shaft is fixedly provided with a roller, the supporting plate is fixedly provided with an air cylinder, the lower end of the air cylinder is provided with a piston rod, the lower end of the piston rod is fixedly connected with a supporting seat, two sides of the upper end of the supporting plate are respectively and fixedly connected with a supporting frame, the inner side of the middle of the supporting frame at two sides is fixedly provided with a second rotating shaft, a display plate is rotatably arranged between the second rotating shafts, the upper end and the lower end of the supporting frame are respectively and fixedly connected with a first sliding chute and a second sliding chute, the first sliding chute is internally and slidably connected with a first sliding trolley, the second sliding chute is internally and slidably connected with a second sliding trolley, and a sponge eraser is fixedly arranged between the first sliding trolley and the second sliding trolley, through the second pivot, can make the show board rotate just in the reverse direction, the convenience is to the use of show board positive and negative, usable floor area when having increased the teaching.

Furthermore, the first sliding groove is a C-shaped sliding groove with a lower opening, the second sliding groove is a U-shaped sliding groove with an upper opening, the sponge eraser is convenient to move left and right through the sliding trolley positioned in the sliding grooves, and the sliding friction force is replaced by the rolling friction force, so that the sponge eraser is more convenient and labor-saving to move left and right.

Furthermore, the width of the sponge wiper is smaller than the length of the second rotating shaft, and the sponge wiper can move to two sides without influencing the turnover of the display board through the width relation of the sponge wiper.

Further, the cylinder is total two and is located the central line both sides of backup pad respectively, the path length of cylinder is far greater than the radius sum of first pivot and gyro wheel, through the supporting seat effect, puts down the supporting seat, replaces the gyro wheel support originally, has increased the holistic stability of device, reduces the teacher and when writing, takes place the condition that vibrates.

Further, the model of the cylinder is CDS2F 125-400.

Compared with the prior art, the utility model has the advantages that:

(1) this scheme passes through the second pivot, can make the show board rotate just in the reverse direction, and the convenience has increased the usable floor area when teaching to the use of show board positive and negative.

(2) The sponge eraser is convenient to move left and right through the sliding trolley positioned in the sliding groove, and the sliding friction force is replaced by the rolling friction force, so that the sponge eraser is more convenient and labor-saving to move left and right.

(3) Through the width relation of the sponge wiper, when the sponge wiper moves to two sides, the overturning of the display board can not be influenced.

(4) Through the supporting seat effect, put down the supporting seat, replace the gyro wheel support originally, increased the holistic stability of device, reduce the teacher and when writing, take place the condition that vibrates.

Drawings

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

FIG. 2 is a cross-sectional view of the overall structure of the present invention;

FIG. 3 is a schematic view of the overall structure of the roller support according to the present invention;

FIG. 4 is a schematic view of the internal structure of the first sliding chute according to the present invention;

fig. 5 is a schematic view of the internal structure of the second chute of the present invention.

The reference numbers in the figures illustrate:

the device comprises a supporting plate 1, a first rotating shaft 2, a roller 3, a cylinder 4, a piston rod 5, a supporting seat 6, a supporting frame 7, a second rotating shaft 8, a display plate 9, a first sliding groove 10, a second sliding groove 11, a sponge eraser 12, a first sliding trolley 13 and a second sliding trolley 14.

Detailed Description

The technical solution in 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; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.

Referring to fig. 1-5, an explanation device for education and teaching comprises a supporting plate 1, referring to fig. 1, a first rotating shaft 2 is respectively rotatably installed at four corners of the lower end of the supporting plate 1, a roller 3 is fixedly installed at the lower end of the first rotating shaft 2, an air cylinder 4 is fixedly installed on the supporting plate 1, a piston rod 5 is installed at the lower end of the air cylinder 4, a supporting seat 6 is fixedly connected to the lower end of the piston rod 5, supporting frames 7 are respectively and fixedly connected to two sides of the upper end of the supporting plate 1, a second rotating shaft 8 is fixedly installed at the inner side of the middle of the supporting frames 7 at two sides, a display plate 9 is rotatably installed between the second rotating shafts 8, a first sliding chute 10 and a second sliding chute 11 are respectively and fixedly connected to the upper end and the lower end of the supporting frame 7, a first sliding trolley 13 is slidably connected to the inside of the first sliding chute 10, a second sliding trolley 14 is slidably connected to the inside of the second sliding chute 11, a sponge eraser 12 is fixedly installed between the first sliding trolley 13 and the second sliding trolley 14, through second pivot 8, can make show board 9 rotate just reversing, conveniently to the use of show board 9 positive and negative, usable floor area when having increased the teaching.

Referring to fig. 1, the first sliding groove 10 is a C-shaped sliding groove with a lower opening, the second sliding groove 11 is a U-shaped sliding groove with an upper opening, and the sliding trolley located in the sliding grooves facilitates the left and right movement of the sponge eraser 12, and the sliding friction force is replaced by the rolling friction force, so that the left and right movement of the sponge eraser 12 is more convenient and labor-saving, the width of the sponge eraser 12 is smaller than the length of the second rotating shaft, and the sponge eraser 12 can be moved to two sides without affecting the turnover of the display board 9 due to the width relationship of the sponge eraser 12.

Referring to fig. 1, two cylinders 4 are provided and are respectively located on two sides of a center line of the support plate 1, a travel length of the cylinders 4 is far longer than a sum of radii of the first rotating shaft 2 and the roller 3, the support base 6 is lowered under the action of the support base 6 to replace the original roller 3 for supporting, overall stability of the device is improved, vibration of a teacher during writing is reduced, and the cylinders 4 are CDS2F 125-400.

Firstly, the supporting seat 6 is lifted by the adjusting cylinder 4, the roller 3 is contacted with the ground, the whole device is converted into the roller 3 to support, then the pushing device is pushed to a position required by teaching, then the cylinder 4 is adjusted again, the supporting seat 6 is lowered, after the horizontal position of the supporting seat 6 exceeds the lower end of the roller 3, the cylinder 4 is stopped, the device is converted into the supporting seat 6 to support, the supporting seat 6 is put down by the action of the supporting seat 6 to replace the original roller 3 to support, the whole stability of the device is increased, the vibration condition of a teacher during writing is reduced, then teaching writing can be carried out on the display board 9, when the front side of the display board 9 is fully written, the display board 9 can be rotated to be turned over to the back side to carry out writing again, the use of the front side and the back side of the display board 9 is convenient, the use area during teaching is increased, when the blackboard writing on the display board 9 needs to be wiped, the sponge eraser 12 is moved for wiping, the first sliding groove 10 is a C-shaped sliding groove with a lower opening, the second sliding groove 11 is a U-shaped sliding groove with an upper opening, the sponge eraser 12 can be conveniently moved left and right through the sliding trolley positioned in the sliding grooves, and the sliding friction force is replaced by the rolling friction force, so that the sponge eraser 12 can be more conveniently and more conveniently moved left and right.

The foregoing is only a preferred embodiment of the present invention; the scope of the utility model is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.

Claims

1. An explanation device for educational teaching, comprising a support plate (1), characterized in that: the device is characterized in that a first rotating shaft (2) is respectively rotatably installed at four corners of the lower end of the supporting plate (1), rollers (3) are fixedly installed at the lower end of the first rotating shaft (2), a cylinder (4) is fixedly installed on the supporting plate (1), a piston rod (5) is installed at the lower end of the cylinder (4), a supporting seat (6) is fixedly connected to the lower end of the piston rod (5), supporting frames (7) are respectively and fixedly connected to two sides of the upper end of the supporting plate (1), a second rotating shaft (8) is fixedly installed at the inner side of the middle of each supporting frame (7) at two sides, a display plate (9) is rotatably installed between the second rotating shafts (8), a first sliding groove (10) and a second sliding groove (11) are respectively and fixedly connected to the upper end and the lower end of each supporting frame (7), a first sliding trolley (13) is slidably connected to the inside of the first sliding groove (10), and a second sliding trolley (14) is slidably connected to the inside of the second sliding groove (11), a sponge wiper (12) is fixedly arranged between the first sliding trolley (13) and the second sliding trolley (14).

2. An explanation device for educational instruction according to claim 1, characterized in that: the first sliding groove (10) is a C-shaped sliding groove with a lower opening, and the second sliding groove (11) is a U-shaped sliding groove with an upper opening.

3. An explanation device for educational instruction according to claim 1, characterized in that: the width of the sponge wiper (12) is less than the length of the second rotating shaft (8).

4. An explanation device for educational instruction according to claim 1, characterized in that: the two cylinders (4) are respectively positioned on two sides of the center line of the support plate (1), and the length of the row path of the cylinders (4) is far greater than the sum of the radiuses of the first rotating shaft (2) and the roller (3).

5. An explanation device for educational instruction according to claim 1, characterized in that: the model of the cylinder (4) is CDS2F 125-400.