Chinese language and literature contrast explaining board

Abstract

The utility model discloses a Chinese language and literature contrast explaining board which comprises a blackboard body, limiting sliding grooves are formed in the edges of the top and the bottom of the front surface of the blackboard body, a lifting displacement frame is arranged on the front surface of the blackboard body, and a book placing backup plate is installed on the lifting displacement frame. A lifting sliding sleeve is installed on the rear surface of the book placing backup plate, a positioning bolt is arranged on one side of the lifting sliding sleeve, and a book supporting plate is arranged at the bottom of the front surface of the book placing backup plate. According to the explaining board with the book clamping and placing structure, when the explaining board is used for Chinese language and literature teaching and the content on the book needs to be written on the board, the Chinese language and literature book can be clamped and fixed through the book clamping and placing structure, a teacher does not need to hold the book by hand, the height of the book can be adjusted, and the teaching efficiency is improved. The Chinese language and literature teaching aid is suitable for being used by different teachers, meanwhile, the convenience of Chinese language and literature explanation is improved, and the comfort of blackboard writing is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of blackboards, and particularly relates to a Chinese language and literature comparative explanation board. Background Art

[0002] Chinese language and literature is a discipline that studies the Chinese language, literature, its history and culture. It covers multiple fields such as ancient literature, modern literature, linguistics, and philology, aiming to deeply understand the characteristics, evolution and application of the Chinese language, as well as the development, style and ideological connotations of Chinese literature. After graduating from the Chinese language and literature major, students can find employment opportunities in multiple fields such as education, publishing, journalism, and cultural institutions. They can hold positions such as teachers, editors, journalists, and cultural communicators, contributing to the promotion of Chinese culture and the promotion of cultural exchanges between China and foreign countries. In the existing Chinese language and literature teaching, a blackboard is usually needed to explain Chinese language and literature through the blackboard.

[0003] A new type of Chinese language and literature comparative explanation board is disclosed in the patent with the application number 202120173878.0. The explanation board in this application can adjust the height of the backboard to prevent students in the back row from not being able to see the content on the drawing board when the teacher is teaching. At the same time, it can adjust the writing area of the drawing board to avoid frequent wiping of the drawing board; through the set oil inlet pipe, oil transmission channel and lubricating groove, when the friction between the first through groove and the connecting rod becomes larger, lubricating oil can be added to the inner wall of the first through groove to make the connecting rod move more smoothly inside the first through groove; combining the above application and aiming at the existing explanation and comparison blackboard used in Chinese language and literature teaching, usually when in use, the teacher needs to write on the blackboard according to the content in the book. If there is a lot of writing on the blackboard during the explanation, the teacher needs to hold the book in one hand and write on the blackboard with the other hand. Holding the book for a long time will cause the arm to become sore and numb, thus affecting the efficiency of Chinese language and literature explanation and the comfort during writing on the blackboard. For this reason, we propose a Chinese language and literature comparative explanation board. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a Chinese language and literature comparative explanation board to solve the problem that in the existing Chinese language and literature teaching, when using the explanation and comparison blackboard, usually when in use, the teacher needs to write on the blackboard according to the content in the book. If there is a lot of writing on the blackboard during the explanation, the teacher needs to hold the book in one hand and write on the blackboard with the other hand. Holding the book for a long time will cause the arm to become sore and numb, thus affecting the efficiency of Chinese language and literature explanation and the comfort during writing on the blackboard, as mentioned in the above background art.

[0005] To achieve the above object, the present utility model provides the following technical solution: A Chinese language and literature comparative explanation board, including a blackboard main body, wherein limiting sliding grooves are opened at the top and bottom edges of the front surface of the blackboard main body, a lifting displacement frame is arranged on the front surface of the blackboard main body, a book placing backrest is installed on the lifting displacement frame, a lifting sliding sleeve is installed on the rear surface of the book placing backrest, a positioning bolt is arranged on one side of the lifting sliding sleeve, a book supporting plate is arranged at the bottom of the front surface of the book placing backrest, a torsion spring is installed on the book supporting plate, and a book pressing clip is arranged inside the torsion spring.

[0006] Preferably, limiting sliding blocks are arranged on the rear surfaces of both ends of the lifting displacement frame, and the lifting displacement frame and the blackboard main body are slidably installed through the limiting sliding blocks and the limiting sliding grooves.

[0007] Preferably, the book placing backrest is slidably installed on the lifting displacement frame through the lifting sliding sleeve, and at the same time, the lifting sliding sleeve and the lifting displacement frame are fixedly installed through the positioning bolt.

[0008] Preferably, the book placing backrest moves horizontally and vertically.

[0009] Preferably, a chalk dust collecting water tank is arranged at the bottom of the front surface of the blackboard main body, a material dropping hopper is arranged at the top inside the chalk dust collecting water tank, a dust discharging port is further arranged at one end of the bottom of the chalk dust collecting water tank, and a sealing rotary cover is installed on the dust discharging port.

[0010] Preferably, a sealing gasket is arranged inside the sealing rotary cover, and the dust discharging port and the sealing rotary cover are hermetically installed through the sealing gasket.

[0011] Compared with the prior art, the beneficial effects of the present utility model are:

[0012] (1) By setting the explanation board with a book clamping and placing structure, when using the explanation board to teach Chinese language and literature, when it is necessary to write the content in the book on the blackboard, the Chinese language and literature book can be clamped and fixed through the set book clamping and placing structure, without the need for the teacher to hold it by hand, and the height of the book can also be adjusted, which is suitable for different teachers to use, while improving the convenience during the explanation of Chinese language and literature and the comfort during writing on the blackboard;

[0013] (2) When writing relevant content of Chinese language and literature on the blackboard, a certain amount of chalk dust will be generated during the writing process. By setting a chalk dust collecting water tank at the bottom of the blackboard, when writing and erasing the blackboard, the chalk dust will fall into the chalk dust collecting water tank. The chalk dust collecting water tank can prevent the chalk dust from spreading during cleaning, thereby avoiding inhaling it into the body, thus improving the practicability of the blackboard. Description of the Drawings

[0014] Figure 1 is a schematic structural view of the present utility model;

[0015] Figure 2 is a top - view structural schematic diagram of the book - placing backboard of the present utility model;

[0016] Figure 3 is the present utility model Figure 1 a schematic structural view of the position A in;

[0017] In the figure: 100, blackboard main body; 200, lifting displacement frame; 201, book - placing backboard; 202, limit slider; 203, limit chute; 204, torsion spring; 205, book - pressing clip; 206, book - supporting plate; 207, lifting sliding sleeve; 208, positioning bolt; 300, chalk - dust collecting water tank; 301, blanking hopper; 302, ash - discharging port; 303, sealing rotary cover; 304, sealing gasket. Specific embodiments

[0018] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0019] Embodiment 1

[0020] Please refer to Figure 1 and Figure 2, the present utility model provides a technical solution: The learning content of Chinese language and literature is very rich, including the reading and analysis of classic works such as ancient poems, essays, novels, etc., the study of modern Chinese grammar, rhetoric and pragmatics, as well as knowledge in aspects such as literary theory, literary history, and cultural criticism. During teaching, teachers will conduct explanations on the blackboard with reference to the content and writing on the blackboard. A Chinese language and literature comparative explanation board includes a blackboard main body 100. At the top and bottom edges of the front surface of the blackboard main body 100, T-shaped limit sliding grooves 203 are opened. An elevating displacement frame 200 is installed on the front surface of the blackboard main body 100. A book placement backrest 201 is installed on the elevating displacement frame 200. An elevating sliding sleeve 207 is integrally formed on the rear surface of the book placement backrest 201. A positioning bolt 208 is rotatably installed on one side of the elevating sliding sleeve 207. A book support plate 206 is provided at the bottom of the front surface of the book placement backrest 201. The book support plate 206 is used to place Chinese language and literature books. The book placement backrest 201 is used to stabilize the books. A torsion spring 204 is installed on the book support plate 206, and a book clamp 205 is arranged inside the torsion spring 204. The book clamp 205 is rotationally limited by the torsion spring 204. When using the blackboard writing in this application, in order to facilitate teachers to write the content in Chinese language and literature books on the blackboard for convenient comparative explanations, the books that need to be held by hand can be placed on the book placement backrest 201 and the book support plate 206. Before placing, the book clamp 205 can be rotated and opened, then the book is placed on the book support plate 206 and leaned against the book placement backrest 201, and then the book clamp 205 is released to clamp the book. Teachers can conveniently fix the book without holding it by hand. The height of the book placement backrest 201 can also be adjusted according to the height of the book. When adjusting, loosen the positioning bolt 208, and the elevating sliding sleeve 207 on the back of the book placement backrest 201 slides up and down on the elevating displacement frame 200, so as to be suitable for teachers of different heights to use. Moreover, the book placement backrest 201 can also slide horizontally, which is better for blackboard writing, improving the convenience and comfort during blackboard writing, and making it more convenient for comparative explanations and use of Chinese language and literature.

[0021] Specifically, limit sliding blocks 202 are fixedly welded to the rear surfaces of both ends of the elevating displacement frame 200. The elevating displacement frame 200 and the blackboard main body 100 are slidably installed through the limit sliding blocks 202 and the limit sliding grooves 203. The book placement backrest 201 can move horizontally, so as to facilitate teachers to write during teaching. The book placement backrest 201 is slidably installed on the elevating displacement frame 200 through the elevating sliding sleeve 207. At the same time, the elevating sliding sleeve 207 and the elevating displacement frame 200 are installed and fixed through the positioning bolt 208. The book placement backrest 201 moves in the vertical direction. When teachers of different heights are using it, the placement height of the book can be adjusted, so as to better refer to the content in the Chinese language and literature book for blackboard writing.

[0022] Embodiment 2

[0023] Please refer to Figure 1 and Figure 3 , the present utility model provides a technical solution: a Chinese language and literature comparison explanation board. A chalk dust collection water tank 300 is fixedly installed at the bottom of the front surface of the blackboard main body 100. A Y-shaped blanking hopper 301 is arranged at the top inside the chalk dust collection water tank 300. One end of the bottom of the chalk dust collection water tank 300 is also provided with an ash discharge port 302. A sealing rotary cover 303 is installed on the ash discharge port 302. At the same time, a sealing gasket 304 is placed and padded inside the sealing rotary cover 303. And the ash discharge port 302 and the sealing rotary cover 303 are hermetically installed through the sealing gasket 304. When writing on the blackboard and erasing the writing on the blackboard main body 100, chalk dust will be generated. The generated chalk dust will fall into the chalk dust collection water tank 300 through the blanking hopper 301 and be mixed with the water poured into the chalk dust collection water tank 300. When cleaning, directly open the sealing rotary cover 303 at the bottom of the ash discharge port 302 for collection, avoiding the scattering of chalk dust during cleaning and preventing it from being inhaled, so as to better use the blackboard, thereby improving the practicability of the blackboard.

[0024] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A Chinese language and literature comparative explanation board, comprising a blackboard main body (100), characterized in that: At the top and bottom edges of the front surface of the blackboard main body (100), limiting sliding grooves (203) are provided. On the front surface of the blackboard main body (100), a lifting displacement frame (200) is arranged. A book placement backrest (201) is installed on the lifting displacement frame (200). A lifting sliding sleeve (207) is installed on the rear surface of the book placement backrest (201). A positioning bolt (208) is arranged on one side of the lifting sliding sleeve (207). A book support plate (206) is arranged at the bottom of the front surface of the book placement backrest (201). A torsion spring (204) is installed on the book support plate (206), and a book pressing clip (205) is arranged inside the torsion spring (204).

2. A Chinese language and literature comparative explanation board according to claim 1, characterized in that: Limiting sliders (202) are arranged on the rear surfaces of both ends of the lifting displacement frame (200). The lifting displacement frame (200) and the blackboard main body (100) are slidably installed through the limiting sliders (202) and the limiting sliding grooves (203).

3. A Chinese language and literature comparative explanation board according to claim 1, characterized in that: The book placement backrest (201) is slidably installed on the lifting displacement frame (200) through the lifting sliding sleeve (207). At the same time, the lifting sliding sleeve (207) and the lifting displacement frame (200) are fixedly installed through the positioning bolt (208).

4. A Chinese language and literature comparative explanation board according to claim 1, characterized in that: The book placement backrest (201) moves horizontally and also moves in the vertical direction.

5. A Chinese language and literature comparative explanation board according to claim 1, characterized in that: At the bottom of the front surface of the blackboard main body (100), a chalk dust collection water trough (300) is provided. A blanking hopper (301) is arranged at the inner top of the chalk dust collection water trough (300). A dust discharge port (302) is also arranged at one end of the bottom of the chalk dust collection water trough (300). A sealing rotary cover (303) is installed on the dust discharge port (302).

6. The Chinese language and literature comparative explanation board according to claim 5, characterized in that: A sealing gasket (304) is arranged inside the sealing rotary cover (303). The dust discharge port (302) and the sealing rotary cover (303) are hermetically installed through the sealing gasket (304).

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