CN213070162U

CN213070162U - Rotary teaching demonstration device for Chinese teaching

Info

Publication number: CN213070162U
Application number: CN202022161378.3U
Authority: CN
Inventors: 王宏; 熊如意
Original assignee: Chongqing Vocational College of Transportation
Current assignee: Chongqing Vocational College of Transportation
Priority date: 2020-09-28
Filing date: 2020-09-28
Publication date: 2021-04-27
Anticipated expiration: 2030-09-28

Abstract

The utility model discloses a chinese teaching is with rotation type teaching presentation device belongs to the teaching device field, the mounting bracket comprises a mounting bracket, the equal fixedly connected with fixed axle of upper and lower inner wall of mounting bracket, it is connected with two-sided teaching board to rotate between two fixed axles, both parts are all cut up about the left end of fixed axle have first spout, equal sliding connection has the rectangle slider in two first spouts, the equal fixedly connected with extension plate in left end of two rectangle sliders, two equal activities of extension plate run through the left end of fixed axle and extend left, the left end fixedly connected with mounting panel of two extension plates, the right-hand member fixedly connected with display screen of mounting panel, the display screen is located between two extension plates, the left end of fixed axle is cut up and is received the groove, it can realize being convenient for accomodate the display screen, and is convenient for carry, and the height-adjusting.

Description

Rotary teaching demonstration device for Chinese teaching

Technical Field

The utility model relates to a teaching device field, more specifically say, relate to a rotation type teaching presentation device for chinese teaching.

Background

The Chinese is short for language, literature and culture, and comprises oral language and written language; the oral language is more random and can be directly understood, and the written language is precise and grammatical; the literature includes Chinese, foreign, ancient and modern literature and the like. This interpretation concept is narrow because articles in the language not only have literature and art (literature, art of art, etc.), but also have many practical articles (application). Colloquially speaking, language is the art of speaking. Generally considered as a comprehensive family of languages and cultures. The simple general names of languages and articles, language knowledge and cultural knowledge, etc. can not be separated from the text. It is a general term for language and character abilities and knowledge, such as listening, speaking, reading, writing, translating and compiling, and cultural knowledge. It can also be said that the language is a combination of spoken and written language and speech, which is the sum of the language laws and the speech activity process of the speech work formed by applying the language laws. The Chinese language is a teaching subject in a basic education course system, the teaching content is language culture, and the running form is also language culture. The ability of Chinese is the basis of learning other disciplines and science, and is also an important human and social discipline, a tool for people to communicate ideas. Has the unified characteristics of tool and humanity. The Chinese language is a general term of disciplines which emphasizes the study of language and characters from the literature, and generally comprises character study, the training of the mother-of-war, phonology, and proofreading. In China, ancient literatures are rich, characters are special, and languages are developed, and generalized languages also include linguistics, i.e., the general names of linguistics and literacy, but at present, since linguistics in international academic departments are a large category, linguistics are rather subordinate to linguistics, and become a branch of linguistics. The Chinese ability is the foundation for learning other disciplines and sciences, is also an important human and social science, and is a tool for people to mutually exchange ideas and the like. The Chinese language is also a main subject established by education institutions such as Chinese schools, and Chinese language textbooks generally teach Chinese language.

The existing Chinese teaching board usually only uses a large writing board, and the display is installed at the right end, so that the board is inconvenient to carry or move.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved

To the problem that exists among the prior art, the utility model aims to provide a rotation type teaching presentation device is used in chinese teaching, it can realize being convenient for accomodate the display screen, portable, the height-adjusting of being convenient for.

2. Technical scheme

In order to solve the above problem, the utility model adopts the following technical scheme:

a rotary teaching demonstration device for Chinese teaching comprises a mounting frame, wherein the upper inner wall and the lower inner wall of the mounting frame are fixedly connected with fixed shafts, a double-sided teaching board is rotatably connected between the two fixed shafts, the upper part and the lower part of the left end of each fixed shaft are provided with first sliding grooves, rectangular sliding blocks are slidably connected in the two first sliding grooves, the left ends of the two rectangular sliding blocks are fixedly connected with extension plates, the two extension plates movably penetrate through the left ends of the fixed shafts and extend leftwards, the left ends of the two extension plates are fixedly connected with mounting plates, the right ends of the mounting plates are fixedly connected with display screens, the display screens are positioned between the two extension plates, the left ends of the fixed shafts are provided with accommodating grooves, the display screens are movably inserted in the accommodating grooves, the ends, far away from the two extension plates, of the two extension plates are respectively provided with fourth sliding grooves, and the left and right parts of the inner walls, opposite to the fourth sliding grooves, are, the tilting of fixed axle has the installation piece, two the one end that the installation piece is close to mutually all is provided with chucking mechanism, and the lower extreme of two mounting panels all is provided with the support column, and it can realize being convenient for accomodate the display screen, portable, the height-adjusting of being convenient for.

As an optimized scheme of the utility model, two chucking mechanism all includes pivot, circular slider and semicircle ring, two pivot two installation pieces of fixed connection respectively, two the pivot is the activity respectively and runs through the inner wall that two first spouts were kept away from mutually, two circular slider fixed connection respectively is in the one end that two pivots were kept away from mutually, two circular slider sliding connection respectively is in two fourth spouts, two semicircle ring fixed connection respectively is in the one end that two circular sliders kept away from mutually, two semicircle ring activity respectively cup joints in two locating pieces.

As an optimized scheme of the utility model, two the lower extreme of mounting panel is all dug there is the second spout, two the support column is sliding connection respectively in two second spouts, two the equal fixedly connected with base of lower extreme of support column.

As a preferred scheme of the utility model, two the jack that has a plurality of evenly distributed has all been dug to the one end that the support column was kept away from mutually, the one end that fixed axle and mounting panel were kept away from mutually all is provided with draws the piece, two draw the equal fixedly connected with inserted bar of one end that the piece is close to mutually, two the inserted bar activity respectively runs through the inner wall that two second spouts are close to mutually and inwards extend, two the inserted bar activity respectively is pegged graft in a plurality of jacks.

As a preferred scheme of the utility model, it has the third spout, two all to open the chisel in mounting panel and the fixed axle equal sliding connection has the slider in the third spout, two the slider is fixed connection respectively in the circumferential surface of two inserted bars, and the circumferential surface that is located two drawing blocks in two third spouts all overlaps and is equipped with the spring, two the spring is located one side that two sliders kept away from mutually respectively.

As a preferred scheme of the utility model, the upper end fixedly connected with handle of fixed axle, the junction fixedly connected with base of display screen and mounting panel.

3. Advantageous effects

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

(1) the double-sided teaching board is rotationally connected between the two fixed shafts, so that the double-sided teaching board can rotate by taking the two fixed shafts as shafts, the front end and the rear end of each fixed shaft are respectively provided with a writing surface, the double-sided teaching board is convenient for teachers to use, the utilization rate is improved, the rectangular sliding blocks are arranged to play a limiting role, the two rectangular sliding blocks are respectively and slidably connected into the two first sliding grooves, the two rectangular sliding blocks drive the two extension boards to slide when sliding left and right, the width and the height of the two rectangular sliding blocks are both larger than those of the two rectangular sliding blocks, when the two rectangular sliding blocks are respectively contacted with the left inner walls of the two first sliding grooves, the two extension boards slide left to the maximum distance, the spring is positioned at the left side of the double-sided teaching board, the accommodating groove is arranged to play a role in accommodating the display screen, when the two rectangular sliding blocks are respectively contacted with the inner walls of the two first sliding grooves, the display screen is completely inserted into the containing groove, the containing groove is convenient to contain, the base is matched with the containing groove, the sealing property can be effectively improved, dust is prevented from entering the containing groove, the service life of the display screen is prolonged, the installation blocks are arranged to play a role of rotating the semicircular rings, when the two extension plates move to the maximum distance, the two installation blocks are rotated to respectively drive the two rotating shafts to rotate, the two rotating shafts respectively drive the two circular sliding blocks, the two circular sliding blocks respectively drive the two semicircular rings to rotate, so that the two semicircular rings are respectively positioned at the left sides of the two positioning blocks at the right side, the two semicircular rings block the two positioning blocks at the moment, the two positioning blocks can not move rightwards, the position fixing of the display screen is realized, and similarly when the display screen is contained in the containing groove, rotate two installation pieces for two semicircle rings are located the left side of two locating pieces on right side respectively, make two locating pieces can't move left, realize the position of fixed mounting board and mounting bracket, can carry this device through the handle this moment, realize portable.

(2) This scheme draws the setting of piece for the height of fixed stay post, when two support columns of sliding from top to bottom are adjusted to suitable height, draw two to the direction that is close to with two and remove, two draw the piece to drive two inserted bars respectively and insert rather than the jack of same height, two inserted bars stop two support columns respectively this moment, realize the height of two fixed support columns.

(3) The setting of this scheme spring plays automatic re-setting's effect, removes about and draws the piece two, and two draw the piece to drive two inserted bar horizontal slip, and two inserted bars drive two slider horizontal slips respectively, and two sliders drive two springs respectively and control flexible, loosen two and draw the piece, and two springs drive the direction that two sliders are close to mutually respectively and slide, and two sliders drive two inserted bars respectively and are close to mutually, two support columns of the automatic fixation of being convenient for.

Drawings

FIG. 1 is an overall perspective view of the present invention;

fig. 2 is a top perspective view of the present invention;

fig. 3 is a cross-sectional view of the present invention;

fig. 4 is an enlarged view of fig. 3A of the present invention;

fig. 5 is a perspective view of a part of the mechanism of the present invention.

The reference numbers in the figures illustrate:

1. a mounting frame; 2. a fixed shaft; 3. a double-sided teaching board; 4. a first chute; 5. a rectangular slider; 6. an extension plate; 7. mounting a plate; 8. a display screen; 9. a receiving groove; 10. a second chute; 11. a support pillar; 12. a base; 13. a sealing plate; 14. a jack; 15. pulling the block; 16. a third chute; 17. a slider; 18. a spring; 19. inserting a rod; 20. a fourth chute; 21. mounting blocks; 22. a handle; 23. positioning blocks; 24. a rotating shaft; 25. a circular slider; 26. a semicircular ring.

Detailed Description

The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention. Obviously, 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 based on the embodiments of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "sleeved/connected", "connected", and the like are to be understood in a broad sense, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b):

referring to fig. 1-5, a rotary teaching demonstration device for Chinese teaching comprises a mounting frame 1, wherein the upper and lower inner walls of the mounting frame 1 are fixedly connected with fixing shafts 2, a double-sided teaching board 3 is rotatably connected between the two fixing shafts 2, the upper and lower parts of the left end of each fixing shaft 2 are respectively provided with a first chute 4, the two first chutes 4 are respectively and slidably connected with rectangular sliders 5, the left ends of the two rectangular sliders 5 are respectively and fixedly connected with extension boards 6, the two extension boards 6 movably penetrate through the left ends of the fixing shafts 2 and extend leftwards, the left ends of the two extension boards 6 are fixedly connected with a mounting board 7, the right end of the mounting board 7 is fixedly connected with a display screen 8, the display screen 8 is positioned between the two extension boards 6, the left end of each fixing shaft 2 is provided with a containing groove 9, the display screen 8 is movably inserted in the containing groove 9, the end of each extension board 6, which is far away from is provided with, the left portion and the right portion of the inner wall of each of the two fourth sliding grooves 20 which are opposite to each other are fixedly connected with a positioning block 23, the fixing shaft 2 rotates up and down to be provided with an installation block 21, one end, close to each other, of each of the two installation blocks 21 is provided with a clamping mechanism, and the lower ends of the two installation plates 7 are provided with support columns 11.

In the embodiment, the fixing shafts 2 are arranged to play a role of positioning and rotating the double-sided teaching board 3, the double-sided teaching board 3 is rotatably connected between the two fixing shafts 2, so that the double-sided teaching board 3 can rotate by taking the two fixing shafts 2 as axes, the front end and the rear end of each fixing shaft 2 are provided with writing surfaces, the double-sided teaching board is convenient for teachers to use, the utilization rate is improved, the rectangular sliding blocks 5 are arranged to play a limiting role, the two rectangular sliding blocks 5 are respectively and slidably connected in the two first sliding grooves 4, the two rectangular sliding blocks 5 drive the two extension boards 6 to slide when sliding left and right, the width and the height of the two rectangular sliding blocks 5 are both larger than those of the two rectangular sliding blocks 5, when the two rectangular sliding blocks 5 are respectively contacted with the left inner walls of the two first sliding grooves 4, the two extension boards 6 slide to the maximum distance leftwards, at the moment, the spring 18 is positioned, the installation plate 7 is pushed to move rightwards, the installation plate 7 drives the two extension plates 6 to slide rightwards, when the two rectangular sliding blocks 5 are respectively contacted with the inner walls of the two first sliding grooves 4, the display screen 8 is completely inserted into the containing groove 9, the containing groove 9 is convenient to contain, the base 12 is matched with the containing groove 9, the sealing performance can be effectively improved, dust is prevented from entering the containing groove 9, the service life of the display screen 8 is prolonged, the installation blocks 21 are arranged to play a role of rotating the semicircular rings 26, when the two extension plates 6 move to the maximum distance, the two installation blocks 21 are rotated, the two installation blocks 21 respectively drive the two rotating shafts 24 to rotate, the two rotating shafts 24 respectively drive the two circular sliding blocks 25 to rotate, the two circular sliding blocks 25 respectively drive the two semicircular rings 26 to rotate, so that the two semicircular rings 26 are respectively positioned at the left side of the two positioning blocks 23 at the right side, two semicircle rings 26 stop two locating pieces 23 this moment, make two locating pieces 23 can't move to the right, realize the rigidity with display screen 8, the same reason is when display screen 8 is accomodate in accomodating groove 9, rotate two installation pieces 21, make two semicircle rings 26 be located the left side of two locating pieces 23 on right side respectively, make two locating pieces 23 can't move left, realize the position of fixed mounting board 7 and mounting bracket 1, can carry this device through handle 22 this moment, realize portable.

Specifically, please refer to fig. 2 and 5, the two clamping mechanisms each include a rotating shaft 24, a circular slider 25 and a semicircular ring 26, the two rotating shafts 24 are respectively and fixedly connected to the two mounting blocks 21, the two rotating shafts 24 respectively and movably penetrate through the inner walls of the two first sliding grooves 4 away from each other, the two circular sliders 25 are respectively and fixedly connected to one ends of the two rotating shafts 24 away from each other, the two circular sliders 25 are respectively and slidably connected to the two fourth sliding grooves 20, the two semicircular rings 26 are respectively and fixedly connected to one ends of the two circular sliders 25 away from each other, and the two semicircular rings 26 are respectively and movably sleeved on the two positioning blocks 23.

In this embodiment, the mounting block 21 is arranged to rotate the semi-circular ring 26, when the two extension plates 6 are moved to the maximum distance, the two mounting blocks 21 are rotated, the two mounting blocks 21 respectively drive the two rotating shafts 24 to rotate, the two rotating shafts 24 respectively drive the two circular sliding blocks 25, the two circular sliding blocks 25 respectively drive the two semicircular rings 26 to rotate, so that the two semicircular rings 26 are respectively positioned at the left sides of the two positioning blocks 23 at the right side, at this time, the two semicircular rings 26 block the two positioning blocks 23, so that the two positioning blocks 23 can not move rightwards, the position of the display screen 8 is fixed, similarly, when the display screen 8 is accommodated in the accommodating groove 9, the two mounting blocks 21 are rotated, so that the two semicircular rings 26 are respectively located at the left sides of the two positioning blocks 23 at the right side, so that the two positioning blocks 23 cannot move leftwards, and the positions of the mounting plate 7 and the mounting frame 1 are fixed.

Specifically, referring to fig. 3, the lower ends of the two mounting plates 7 are both provided with second sliding grooves 10, the two supporting columns 11 are respectively slidably connected in the two second sliding grooves 10, and the lower ends of the two supporting columns 11 are both fixedly connected with a base 12.

In this embodiment, two support columns 11 slide up and down, the height of the double-sided teaching board 3 and the height of the display screen 8 can be adjusted, and the base 12 is used for supporting the device.

Specifically, referring to fig. 4, a plurality of jacks 14 are drilled at the ends of the two support columns 11 away from each other, a pull block 15 is disposed at each end of the fixed shaft 2 away from the mounting plate 7, an insertion rod 19 is fixedly connected at each end of the two pull blocks 15 close to each other, the two insertion rods 19 respectively movably penetrate through the inner walls of the two second sliding grooves 10 close to each other and extend inward, and the two insertion rods 19 are respectively movably inserted into the jacks 14.

In this embodiment, pull the setting of piece 15 for the height of fixed support post 11, when two support posts 11 that slide from top to bottom adjust to suitable height, pull two pieces 15 and remove to the direction that is close to mutually, two pull pieces 15 drive respectively two inserted bars 19 insert rather than the jack 14 of co-altitude, two inserted bars 19 stop two support posts 11 respectively this moment, realize the height of two fixed support posts 11.

Specifically, referring to fig. 4, third sliding grooves 16 are drilled in the mounting plate 7 and the fixed shaft 2, sliding blocks 17 are connected to the two third sliding grooves 16 in a sliding manner, the two sliding blocks 17 are fixedly connected to the circumferential surfaces of two insertion rods 19 respectively, springs 18 are sleeved on the circumferential surfaces of two pulling blocks 15 located in the two third sliding grooves 16, and the two springs 18 are located on one side, away from the two sliding blocks 17, respectively.

In this embodiment, spring 18's setting plays automatic re-setting's effect, remove about and control two and draw piece 15, two draw piece 15 to drive two inserted bar 19 horizontal slip, two inserted bar 19 drive two sliders 17 horizontal slips respectively, two sliders 17 drive two springs 18 respectively and stretch out and draw back about, loosen two and draw piece 15, two springs 18 drive two sliders 17 respectively and slide in the direction that is close to mutually, two sliders 17 drive two inserted bar 19 respectively and are close to mutually, two support columns 11 of the automatic fixation of being convenient for.

Specifically, referring to fig. 1, the upper end of the fixed shaft 2 is fixedly connected with a handle 22, and the joint of the display screen 8 and the mounting plate 7 is fixedly connected with a base 12.

In the embodiment, the handle 22 is provided for the device for teachers to write, and the surface of the handle 22 is covered with rubber, so that friction force can be increased, and slipping is avoided.

The working principle is as follows: the double-sided teaching board 3 is rotatably connected between the two fixing shafts 2, so that the double-sided teaching board 3 can rotate by taking the two fixing shafts 2 as shafts, the front end and the rear end of each fixing shaft 2 are respectively provided with a writing surface, the double-sided teaching board is convenient for teachers to use, the utilization rate is improved, the rectangular sliders 5 are arranged to play a limiting role, the two rectangular sliders 5 are respectively and slidably connected into the two first sliding grooves 4, the two rectangular sliders 5 drive the two extension boards 6 to slide when sliding left and right, the width and the height of the two rectangular sliders 5 are both larger than those of the two rectangular sliders 5, when the two rectangular sliders 5 are respectively contacted with the left inner walls of the two first sliding grooves 4, the two extension boards 6 slide left to the maximum distance, at the moment, the spring 18 is positioned at the left side of the double-sided teaching board 3, the accommodating groove 9 is arranged to play a role, the mounting plate 7 drives the two extension plates 6 to slide rightwards, when the two rectangular sliding blocks 5 are respectively contacted with the inner walls of the two first sliding grooves 4, the display screen 8 is completely inserted into the accommodating groove 9, the accommodating groove 9 is convenient to accommodate, the base 12 is matched with the accommodating groove 9, the sealing performance can be effectively improved, dust is prevented from entering the accommodating groove 9, the service life of the display screen 8 is prolonged, the mounting blocks 21 are arranged to play a role of rotating the semicircular rings 26, when the two extension plates 6 move to the maximum distance, the two mounting blocks 21 are rotated, the two mounting blocks 21 respectively drive the two rotating shafts 24 to rotate, the two rotating shafts 24 respectively drive the two circular sliding blocks 25, the two circular sliding blocks 25 respectively drive the two semicircular rings 26 to rotate, so that the two semicircular rings 26 are respectively positioned at the left sides of the two positioning blocks 23 at the right side, at the moment, the two semicircular rings 26 block the two positioning blocks, make two locating pieces 23 can't move right, realize the rigidity with display screen 8, when display screen 8 is accomodate in accomodating groove 9, rotate two installation pieces 21 like the same, make two semicircle rings 26 be located the left side of two locating pieces 23 on right side respectively, make two locating pieces 23 can't move left, realize the position of fixed mounting board 7 and mounting bracket 1, can carry this device through handle 22 this moment, realize portable.

The above description is only the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can substitute or change the technical solution and the improvement concept of the present invention within the technical scope disclosed in the present invention.

Claims

1. The utility model provides a chinese teaching is with rotation type teaching presentation device which characterized in that: the teaching board comprises a mounting rack (1), wherein fixed shafts (2) are fixedly connected to the upper inner wall and the lower inner wall of the mounting rack (1), two double-sided teaching boards (3) are rotatably connected between the fixed shafts (2), first sliding grooves (4) are formed in the upper portion and the lower portion of the left end of each fixed shaft (2), rectangular sliding blocks (5) are slidably connected into the two first sliding grooves (4), extension boards (6) are fixedly connected to the left ends of the two rectangular sliding blocks (5), the two extension boards (6) movably penetrate through the left ends of the fixed shafts (2) and extend leftwards, mounting boards (7) are fixedly connected to the left ends of the extension boards (6), display screens (8) are fixedly connected to the right ends of the mounting boards (7), the display screens (8) are located between the two extension boards (6), accommodating grooves (9) are formed in the left ends of the fixed shafts (2), display screen (8) activity is pegged graft in accomodating groove (9), two the one end that extension plate (6) kept away from mutually all opens chisel and has fourth spout (20), two equal fixedly connected with locating piece (23) in two parts about the inner wall that fourth spout (20) are opposite, the tilting of fixed axle (2) has installation piece (21), two the one end that installation piece (21) are close to mutually all is provided with chucking mechanism, and the lower extreme of two mounting panels (7) all is provided with support column (11).

2. A rotary teaching demonstration apparatus for Chinese teaching according to claim 1 further comprising: two chucking mechanism all includes pivot (24), circular slider (25) and semicircle ring (26), two pivot (24) is two installation piece (21) of fixed connection respectively, two pivot (24) activity respectively runs through the inner wall that two first spouts (4) kept away from mutually, two circular slider (25) fixed connection respectively in the one end that two pivots (24) kept away from mutually, two circular slider (25) sliding connection respectively in two fourth spouts (20), two semicircle ring (26) fixed connection respectively in the one end that two circular slider (25) kept away from mutually, two semicircle ring (26) activity respectively cup joints in two locating pieces (23).

3. A rotary teaching demonstration apparatus for Chinese teaching according to claim 2 wherein: two the lower extreme of mounting panel (7) all opens chisel and has second spout (10), two support column (11) sliding connection respectively in two second spouts (10), two the equal fixedly connected with base (12) of lower extreme of support column (11).

4. A rotary teaching demonstration apparatus for Chinese teaching according to claim 3 wherein: two the one end that support column (11) kept away from mutually all cuts jack (14) that have a plurality of evenly distributed, the one end that fixed axle (2) and mounting panel (7) kept away from mutually all is provided with draws piece (15), two draw the equal fixedly connected with inserted bar (19) of one end that piece (15) are close to mutually, two inserted bar (19) activity respectively runs through the inner wall that two second spout (10) are close to mutually and inwards extend, two inserted bar (19) activity respectively is pegged graft in a plurality of jacks (14).

5. The rotary teaching demonstration device for Chinese teaching according to claim 4 wherein: all opening in mounting panel (7) and fixed axle (2) and chiseling has third spout (16), two equal sliding connection has slider (17), two in third spout (16) slider (17) fixed connection respectively is in the circumference surface of two inserted bars (19), and the circumference surface that is located two third spout (16) and draws piece (15) all overlaps and is equipped with spring (18), two spring (18) are located one side that two slider (17) kept away from mutually respectively.

6. A rotary teaching demonstration apparatus for Chinese teaching according to claim 5 wherein: the upper end fixedly connected with handle (22) of fixed axle (2), the junction fixedly connected with base (12) of display screen (8) and mounting panel (7).