Multimedia teaching device

Abstract

The utility model relates to the technical field of teaching auxiliary equipment, in particular to a multimedia teaching device which comprises a teaching all-in-one machine, the rear end of the teaching all-in-one machine is connected with a fixing plate, a writing board is installed in the fixing plate, and the lower end of the writing board is connected with a transmission assembly. The transmission assembly comprises a first threaded rod and a second threaded rod, bearings are installed at the joints of the first threaded rod and the fixing plate and the joints of the second threaded rod and the fixing plate, a stepping motor is installed at the rear end of the fixing plate, and the driving end of the stepping motor is connected with a first gear. A fixing plate, a writing plate, a first threaded rod, a second threaded rod, a bearing, a stepping motor, a first gear, a second gear, a connecting block, a pulley and a movable groove are arranged on the rear side of the teaching all-in-one machine, so that a teacher can conveniently compare the teaching all-in-one machine to expand classical Chinese knowledge points on the writing plate, and the writing plate can be conveniently stored by the fixing plate; therefore, the volume of the teaching all-in-one machine is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of teaching auxiliary equipment, in particular to a multimedia teaching device. Background Art

[0002] With the rapid development and popularization of computer technology, multimedia touch teaching all-in-one machines have gradually replaced the previous comprehensive use of multiple teaching media. Multimedia teaching refers to the process of teaching, according to the teaching objectives and the characteristics of the teaching objects, through teaching design, the rational selection and use of modern teaching media, and the organic combination with traditional teaching methods, jointly participating in the whole teaching process, using multiple media information to act on students, forming a reasonable teaching process structure, and achieving the optimal teaching effect.

[0003] The touch screen teaching board in the existing publicly disclosed patent for a multimedia teaching device that can be quickly disassembled and assembled (application number: CN202220214312.2) is easy to disassemble, but when explaining classical Chinese and supplementing the knowledge points of classical Chinese, the touch screen teaching board needs to switch to other writing software or split the screen, which makes it inconvenient for students to understand the full text. The split screen causes the pattern or text to shrink, which is inconvenient for students to watch and is inconvenient to use.

[0004] Therefore, a multimedia teaching device is needed to improve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a multimedia teaching device to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A multimedia teaching device, comprising an integrated teaching machine, a fixed plate is connected to the rear end of the integrated teaching machine, a writing board is installed inside the fixed plate, a transmission assembly is connected to the lower end of the writing board, the transmission assembly comprises a first threaded rod and a second threaded rod, a bearing is installed at the connection between the first threaded rod, the second threaded rod and the fixed plate, a stepper motor is installed at the rear end of the fixed plate, a first gear is connected to the driving end of the stepper motor, a second gear is installed at the connection between the first threaded rod and the second threaded rod, connecting blocks are installed on the outer surfaces of the side ends of the first threaded rod and the second threaded rod, a pulley is connected to the upper end of the writing board, and a movable groove is provided at the connection between the pulley and the fixed plate;

[0008] The lower end of the fixed plate is connected to a support frame, the upper end of the support frame is installed with a support plate, an eraser is placed on the support plate, a placement groove is provided at the connection between the eraser and the support plate, a first magnetic buckle is embedded in the lower end of the eraser, and a second magnetic buckle is embedded in the placement groove.

[0009] As a preferred solution of the utility model, the connection between the writing board and the fixed plate is a sliding connection, and the threads of the first threaded rod and the second threaded rod are turned relative to each other.

[0010] As a preferred solution of the utility model, the first threaded rod and the second threaded rod are both rotatably connected to the fixed plate via bearings, and the first gear and the second gear are connected in a meshing manner.

[0011] As a preferred solution of the utility model, the connection between the connecting block and the first threaded rod and the second threaded rod is a threaded connection, the connection between the connecting block and the writing board is a fixed connection, and the pulley is rollingly connected to the fixed plate through a movable groove.

[0012] As a preferred solution of the utility model, the connection between the support plate and the support frame is a fixed connection, and the eraser is movably connected to the support plate through a placement groove.

[0013] As a preferred solution of the present utility model, the first magnetic buckle and the second magnetic buckle are fixedly adhered to the eraser and the support plate respectively, and the connection method between the first magnetic buckle and the second magnetic buckle is active magnetic attraction.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. In the utility model, a fixed plate, a writing board, a first threaded rod, a second threaded rod, a bearing, a stepper motor, a first gear, a second gear, a connecting block, a pulley and a movable groove are arranged on the rear side of the teaching all-in-one machine. When it is necessary to supplement the classical Chinese knowledge points in Chinese language and literature, in order to facilitate students to refer to the classical Chinese texts on the teaching all-in-one machine, the stepper motor is controlled to operate by remote control, and the stepper motor drives the first threaded rod and the second threaded rod to rotate through the first gear and the second gear. The first threaded rod and the second threaded rod drive the two groups of writing boards to move to the inside or outside of the fixed plate at the same time through the connecting block. This not only facilitates the teacher to expand the classical Chinese knowledge points on the writing board by comparing with the teaching all-in-one machine, but also facilitates the fixed plate to store the writing board, thereby reducing the volume of the teaching all-in-one machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is an overall schematic diagram of the utility model;

[0017] Figure 2 It is a longitudinal section schematic diagram of the fixing plate of the utility model;

[0018] Figure 3 This is a cross-sectional schematic diagram of the fixing plate of the utility model;

[0019] Figure 4This is a schematic diagram of the disassembly of the transmission assembly of the utility model;

[0020] Figure 5 It is a schematic diagram of the disassembly of the eraser and the supporting plate of the utility model.

[0021] In the figure: 1. teaching machine; 2. fixing plate; 3. writing board; 4. transmission assembly; 401. first threaded rod; 402. second threaded rod; 403. bearing; 404. stepping motor; 405. first gear; 406. second gear; 407. connecting block; 5. pulley; 6. movable slot; 7. supporting frame; 8. supporting plate; 9. eraser; 10. placement slot; 11. first magnetic buckle; 12. second magnetic buckle. DETAILED DESCRIPTION

[0022] The following will combine the embodiments of the present utility model to clearly and completely describe the technical solutions in the embodiments of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present utility model.

[0023] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings, and several embodiments of the present invention are given. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0024] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may also be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used in this article includes one or more related listed items and all combinations.

[0026] For examples, see Figure 1-5 , the utility model provides a technical solution:

[0027] A multimedia teaching device includes an integrated teaching machine 1, a fixed plate 2 is connected to the rear end of the integrated teaching machine 1, a writing board 3 is installed inside the fixed plate 2, a transmission assembly 4 is connected to the lower end of the writing board 3, the transmission assembly 4 includes a first threaded rod 401 and a second threaded rod 402, a bearing 403 is installed at the connection between the first threaded rod 401, the second threaded rod 402 and the fixed plate 2, a stepping motor 404 is installed at the rear end of the fixed plate 2, a first gear 405 is connected to the driving end of the stepping motor 404, and a first threaded rod 401 is connected to the second threaded rod 402. A second gear 406 is installed, and a connecting block 407 is installed on the outer surface of the side ends of the first threaded rod 401 and the second threaded rod 402. A pulley 5 is connected to the upper end of the writing board 3, and a movable groove 6 is provided at the connection between the pulley 5 and the fixed plate 2; the connection between the writing board 3 and the fixed plate 2 is a sliding connection, and the threads between the first threaded rod 401 and the second threaded rod 402 are opposite, so that the writing board 3 is convenient for the teacher to write and supplement the knowledge points; the first threaded rod 401 and the second threaded rod 402 are both rotatably connected to the fixed plate 2 through the bearing 403, and the first gear 405 The connection between the first threaded rod 401 and the second threaded rod 402 is a meshing connection, and the bearing 403 can reduce the friction between the first threaded rod 401 and the second threaded rod 402 and the fixed plate 2; the connection between the connecting block 407 and the first threaded rod 401 and the second threaded rod 402 is a threaded connection, and the connection between the connecting block 407 and the writing board 3 is a fixed connection. The pulley 5 is rollingly connected to the fixed plate 2 through the movable groove 6, and the pulley 5 can reduce the friction between the writing board 3 and the fixed plate 2; when it is necessary to supplement the classical Chinese knowledge points of Chinese language and literature, in order to facilitate students Referring to the classical Chinese text on the teaching all-in-one machine 1, the stepper motor 404 is controlled by remote control to run, and the stepper motor 404 drives the first threaded rod 401 and the second threaded rod 402 to rotate through the first gear 405 and the second gear 406. The first threaded rod 401 and the second threaded rod 402 drive the two groups of writing boards 3 to move to the inside or outside of the fixed plate 2 at the same time through the connecting block 407. This not only makes it convenient for teachers to expand the classical Chinese knowledge points on the writing board 3 by comparing with the teaching all-in-one machine 1, but also makes it convenient for the fixed plate 2 to store the writing board 3, thereby reducing the volume of the teaching all-in-one machine 1.

[0028] In this embodiment, reference Figure 1 and Figure 5The lower end of the fixed plate 2 is connected to a support frame 7, and a support plate 8 is installed on the upper end of the support frame 7. A blackboard eraser 9 is placed on the support plate 8. A placement groove 10 is opened at the connection between the blackboard eraser 9 and the support plate 8, and a first magnetic buckle 11 is embedded at the lower end of the blackboard eraser 9, and a second magnetic buckle 12 is embedded in the placement groove 10; the connection mode between the support plate 8 and the support frame 7 is a fixed connection, and the blackboard eraser 9 is movably connected to the support plate 8 through the placement groove 10, and the support plate 8 is convenient to prevent other tools required for teaching; the first magnetic buckle 11 and the second magnetic buckle 12 are fixedly adhered to the blackboard eraser 9 and the support plate 8 respectively, and the connection mode between the first magnetic buckle 11 and the second magnetic buckle 12 is active magnetic attraction; after the teacher removes the blackboard eraser 9 on the support plate 8 to erase the text on the writing board 3, the blackboard eraser 9 is placed upside down in the placement groove 10 on the support plate 8, and the first magnetic buckle 11 at the lower end of the blackboard eraser 9 and the second magnetic buckle 12 in the placement groove 10 are mutually adsorbed, which can prevent the blackboard eraser 9 from falling.

[0029] Specific implementation cases:

[0030] When the multimedia teaching device designed by the present scheme is used in the teaching of Chinese language and literature, when it is necessary to supplement the classical Chinese knowledge points of Chinese language and literature, in order to facilitate students to refer to the classical Chinese texts on the teaching all-in-one machine 1, the stepper motor 404 is controlled by remote control to run, and the connection between the first gear 405 and the second gear 406 is a meshing connection, and the first threaded rod 401 and the second threaded rod 402 are both rotatably connected to the fixed plate 2 through the bearing 403. The stepper motor 404 drives the first threaded rod 401 and the second threaded rod 402 to rotate through the first gear 405 and the second gear 406, and the connection between the connecting block 407 and the first threaded rod 401 and the second threaded rod 402 is a threaded connection, and the writing board 3 and the fixed plate 2 are connected. When the connection mode between them is a sliding connection, the first threaded rod 401 and the second threaded rod 402 drive the two groups of writing boards 3 to move to the inside or outside of the fixed plate 2 at the same time through the connecting block 407, which is not only convenient for the teacher to expand the classical Chinese knowledge points on the writing board 3 by comparing the teaching all-in-one machine 1, but also convenient for the fixed plate 2 to store the writing board 3, thereby reducing the volume of the teaching all-in-one machine 1. After the teacher removes the eraser 9 on the support plate 8 and erases the text on the writing board 3, the eraser 9 is placed upside down in the placement slot 10 on the support plate 8. Under the condition that the connection mode between the first magnetic buckle 11 and the second magnetic buckle 12 is an active magnetic attraction, the first magnetic buckle 11 at the lower end of the eraser 9 and the second magnetic buckle 12 in the placement slot 10 are adsorbed on each other, which can prevent the eraser 9 from falling.

[0031] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multimedia teaching device, comprising an all-in-one teaching machine (1), characterized in that: The rear end of the teaching all-in-one machine (1) is connected to a fixed plate (2), a writing board (3) is installed inside the fixed plate (2), the lower end of the writing board (3) is connected to a transmission assembly (4), the transmission assembly (4) comprises a first threaded rod (401) and a second threaded rod (402), a bearing (403) is installed at the connection between the first threaded rod (401), the second threaded rod (402) and the fixed plate (2), and a stepping motor (403) is installed at the rear end of the fixed plate (2). 404), the driving end of the stepping motor (404) is connected to a first gear (405), a second gear (406) is installed at the connection between the first threaded rod (401) and the second threaded rod (402), the side end outer surfaces of the first threaded rod (401) and the second threaded rod (402) are both installed with connecting blocks (407), the upper end of the writing board (3) is connected to a pulley (5), and a movable groove (6) is provided at the connection between the pulley (5) and the fixed plate (2); The lower end of the fixed plate (2) is connected to a support frame (7), the upper end of the support frame (7) is installed with a support plate (8), an eraser (9) is placed on the support plate (8), a placement groove (10) is provided at the connection between the eraser (9) and the support plate (8), a first magnetic buckle (11) is embedded at the lower end of the eraser (9), and a second magnetic buckle (12) is embedded inside the placement groove (10).

2. A multimedia teaching device according to claim 1, characterized in that: The connection between the writing board (3) and the fixed plate (2) is a sliding connection, and the threads of the first threaded rod (401) and the second threaded rod (402) are turned in opposite directions.

3. A multimedia teaching device according to claim 1, characterized in that: The first threaded rod (401) and the second threaded rod (402) are both rotatably connected to the fixed plate (2) via a bearing (403), and the first gear (405) and the second gear (406) are connected in a meshing manner.

4. A multimedia teaching device according to claim 1, characterized in that: The connection mode between the connection block (407) and the first threaded rod (401) and the second threaded rod (402) is threaded connection, the connection mode between the connection block (407) and the writing board (3) is fixed connection, and the pulley (5) is rollingly connected to the fixed plate (2) through the movable groove (6).

5. A multimedia teaching device according to claim 1, characterized in that: The connection mode between the supporting plate (8) and the supporting frame (7) is a fixed connection, and the eraser (9) is movably connected to the supporting plate (8) through a placement groove (10).

6. A multimedia teaching device according to claim 1, characterized in that: The first magnetic buckle (11) and the second magnetic buckle (12) are fixedly bonded to the eraser (9) and the support plate (8) respectively, and the connection mode between the first magnetic buckle (11) and the second magnetic buckle (12) is active magnetic attraction.

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