CN216139729U

CN216139729U - Think political affairs teaching and use blackboard

Info

Publication number: CN216139729U
Application number: CN202121952517.2U
Authority: CN
Inventors: 赵倩; 李明
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-08-19
Filing date: 2021-08-19
Publication date: 2022-03-29
Anticipated expiration: 2031-08-19

Abstract

The utility model discloses a ideological and political affairs teaching blackboard, which relates to the technical field of teaching equipment and comprises a bottom plate, wherein symmetrical support columns are fixedly connected to the upper surface of the bottom plate, the upper surfaces of two support columns are fixedly connected with a same top plate, first sliding grooves are formed in one side surface, close to each other, of the two support columns, first sliding blocks matched with the first sliding grooves are clamped in the two first sliding grooves, the other side surface, close to each other, of the two first sliding blocks is fixedly connected with a same blackboard, fixing strips are fixedly connected to the upper surface and the bottom surface of the blackboard, and second sliding grooves are formed in the front surfaces of the two fixing strips. This think political affairs blackboard for teaching, through the cooperation of second handle, second drive wheel, first drive wheel and belt, can make the user of service light more, nimble pull up the blackboard through the second handle, can more make things convenient for the back row student to observe the blackboard content, very big improvement lecture efficiency.

Description

Think political affairs teaching and use blackboard

Technical Field

The utility model relates to the technical field of teaching equipment, in particular to a think of political affairs teaching blackboard.

Background

The blackboard is not particularly designated to a black board, is a plane which can be repeatedly written by chalk in the traditional sense, is hard and is mainly used for teaching, is generally made of wood boards or ground glass and can be written on by specific writing materials such as chalk and the like, and is mostly black, dark green, white or beige in color, but in China, essential courses from primary schools to colleges in ideological and political schools aim to develop the Marxism and Chinese characteristic social and meaning values. Most of common blackboards on the market are inconvenient to carry out height adjustment, and this can lead to the back row student to observe not good to the content of blackboard lower part, influences study progress and lecture progress, and to long-time lecture simultaneously, it is also comparatively troublesome to erase the content on the blackboard, for this reason, has designed a think political affairs blackboard for teaching.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model provides a think of political affairs teaching blackboard, which solves the problems that the height of the blackboard cannot be adjusted and the blackboard is difficult to erase in the prior blackboard.

In order to achieve the purpose, the utility model provides the following technical scheme: a blackboard for thinking and political affairs teaching comprises a bottom plate, wherein symmetrical support columns are fixedly connected to the upper surface of the bottom plate, the upper surfaces of the two support columns are fixedly connected with a same top plate, a first sliding groove is formed in one side surface, close to each other, of the two support columns, first sliding blocks matched with the first sliding grooves are clamped in the two first sliding grooves, a same blackboard is fixedly connected to one side surface, close to each other, of the two first sliding blocks, fixing strips are fixedly connected to the upper surface and the bottom surface of the blackboard, second sliding grooves are formed in the front surfaces of the two fixing strips, second sliding blocks matched with the second sliding grooves are clamped in the two second sliding grooves, a same long plate is fixedly connected to the front surfaces of the two second sliding blocks, a third sliding groove is formed in one side surface, close to each other, of the two second sliding blocks, and a third sliding block matched with the third sliding grooves is clamped in the two third sliding grooves, two the same blackboard eraser of a side fixedly connected with that the third slider is close to each other, the second through-hole has been seted up at the middle part of roof upper surface, the inside of second through-hole articulates through first round pin axle has first drive wheel, the equal fixedly connected with backup pad of right flank that is located right side support column and roof, two the backup pad all articulates through second round pin axle has the second drive wheel, be located the positive edge fixedly connected with second handle of below second drive wheel, the inside winding that is located below second drive wheel has the belt, the bottom surface fixedly connected with sky groove piece that is located below fixed strip, the inside joint of sky groove piece has the inserted bar with empty groove piece looks adaptation.

Preferably, two equal first spring of fixedly connected with below the first slider, two the bottom of first spring all with the interior diapire fixed connection of first spout, first spring can play the additional function to the rising of first slider, can play the cushioning effect to the lower of second slider simultaneously, prevents that the blackboard from descending too fiercely, causes the influence to teachers and students.

Preferably, the back surfaces of the two third sliding blocks are fixedly connected with second springs, the rear ends of the two second springs are fixedly connected with the inner rear wall of the third sliding groove, the second springs can reduce the descending force of the third sliding blocks, and meanwhile, the second springs can assist the third sliding blocks to rise to drive the eraser to automatically rise.

Preferably, a first through hole is formed in the middle of the front face of the long board, a first handle is fixedly connected to the middle of the front face of the blackboard eraser and is inserted into the first through hole, the first handle can facilitate the long board to be pressed down to clean the blackboard, and meanwhile the long board can be assisted to be lifted up.

Preferably, the belt is in sliding connection with the outer surface of the first driving wheel at the upper second driving wheel, the other end of the belt is fixedly connected with the upper surface of the upper fixing strip, and the belt is in sliding connection with the first driving wheel through the second driving wheel, so that the blackboard is driven to ascend and descend more easily.

Preferably, the left surface that is located the right side support column has seted up a plurality of evenly distributed's jack, the jack is sharp distribution in the left side of right side support column, and a plurality of jacks can make things convenient for the inserted bar to insert at various heights at any time, the height of light fixed blackboard.

Preferably, the left side fixedly connected with third spring of inserted bar, the left end of third spring and the left inner wall fixed connection of empty groove piece, the third spring can play an outside power to the inserted bar, supplementary popping out of inserted bar, can be more convenient, automatic with the inside of inserted bar grafting into the jack.

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

1. this think political affairs blackboard for teaching, through the cooperation of second handle, second drive wheel, first drive wheel and belt, can make the user of service lighter more, nimble pull up the blackboard through the second handle, can more make things convenient for the back row student to observe the blackboard content, very big improvement lecture efficiency, through the cooperation of slot and inserted bar, can make the blackboard highly block extremely at various, the problem that the accident drops can not appear, cause the influence to teachers and students.

2. This think political affairs blackboard for teaching, cooperation through first spring and first slider, first spring can play the additional action to the rising of first slider, can play the cushioning effect to the lower of second slider simultaneously, prevent that the blackboard from descending too fiercely, cause the influence to teachers and students, through the second spring, can slow down the power that the third slider descends, can assist the rise of third slider simultaneously, drive the automatic lifting of blackboard eraser, through the first in command, can make things convenient for the long board to push down and clear up the blackboard, can assist lifting up of long board simultaneously.

Drawings

FIG. 1 is a front cross-sectional view of an insert rod of the present invention;

FIG. 2 is a cross-sectional view of the jack of the present invention from the left;

FIG. 3 is a sectional view of the rear view of the blackboard of the present invention;

FIG. 4 is a top view of the first handle of the present invention.

In the figure: 1. a base plate; 2. a support pillar; 3. a top plate; 4. a first chute; 5. a first slider; 6. a first spring; 7. a blackboard; 8. a fixing strip; 9. a second chute; 10. a second slider; 11. a long plate; 12. a third chute; 13. a third slider; 14. a second spring; 15. erasing the blackboard; 16. a first through hole; 17. a first handle; 18. a second through hole; 19. a first pin shaft; 20. a first drive pulley; 21. a support plate; 22. a second pin shaft; 23. a second transmission wheel; 24. a second handle; 25. a belt; 26. a jack; 27. an empty slot block; 28. inserting a rod; 29. and a third spring.

Detailed Description

Referring to fig. 1-4, a blackboard for thinking and political affairs teaching comprises a bottom plate 1, symmetrical support pillars 2 are fixedly connected to the upper surface of the bottom plate 1, the upper surfaces of the two support pillars 2 are fixedly connected with a same top plate 3, first sliding grooves 4 are respectively formed in the side surfaces of the two support pillars 2 close to each other, first sliding blocks 5 matched with the first sliding grooves 4 are respectively clamped in the two first sliding grooves 4, first springs 6 are respectively fixedly connected to the lower surfaces of the two first sliding blocks 5, the bottom ends of the two first springs 6 are respectively fixedly connected with the inner bottom wall of the first sliding grooves 4, the first springs 6 can assist the rising of the first sliding blocks 5, and can buffer the lower part of the second sliding blocks 10 to prevent the blackboard 7 from falling too hard to affect teachers and students, the same blackboard 7 is fixedly connected to the side surface of the two first sliding blocks 5 close to each other, the upper surface and the bottom surface of the blackboard 7 are fixedly connected with fixing strips 8, the fronts of the two fixing strips 8 are respectively provided with a second chute 9, the insides of the two second chutes 9 are respectively clamped with a second sliding block 10 matched with the second chute 9, the fronts of the two second sliding blocks 10 are fixedly connected with a same long board 11, one side surface of the two second sliding blocks 10 close to each other is respectively provided with a third chute 12, the insides of the two third chutes 12 are respectively clamped with a third sliding block 13 matched with the third chute 12, the back surfaces of the two third sliding blocks 13 are respectively fixedly connected with a second spring 14, the rear ends of the two second springs 14 are respectively fixedly connected with the inner rear wall of the third chute 12, the second springs 14 can reduce the descending force of the third sliding blocks 13 and can assist the rising of the third sliding blocks 13 to drive the board eraser 15 to automatically rise, one side surface of the two third sliding blocks 13 close to each other is fixedly connected with a same board eraser 15, the middle part of the front surface of the long plate 11 is provided with a first through hole 16, the middle part of the front surface of the blackboard eraser 15 is fixedly connected with a first handle 17, the first handle 17 is inserted in the first through hole 16, the first handle 17 can be convenient for the long plate 11 to be pressed down to clean the blackboard 7 and can assist the long plate 11 to be lifted, the middle part of the upper surface of the top plate 3 is provided with a second through hole 18, the inside of the second through hole 18 is articulated with a first driving wheel 20 through a first pin shaft 19, the right side supporting column 2 and the right side surface of the top plate 3 are both fixedly connected with supporting plates 21, the two supporting plates 21 are both articulated with a second driving wheel 23 through a second pin shaft 22, the edge of the front surface of the second driving wheel 23 below is fixedly connected with a second handle 24, the inside of the second driving wheel 23 below is wound with a belt 25, the belt 25 is arranged on the upper part, the second driving wheel 23 is connected with the outer surface of the first driving wheel 20 in a sliding way, the other end of the belt 25 is fixedly connected with the upper surface of the upper fixing strip 8, the belt 25 is in sliding connection with the first driving wheel 20 through the second driving wheel 23, so that the blackboard 7 is driven to ascend and descend more easily, a plurality of jacks 26 which are uniformly distributed are formed in the left side surface of the right side supporting column 2, the jacks 26 are linearly distributed in the left side surface of the right side supporting column 2, the jacks 26 can facilitate insertion of the insertion rods 28 at various heights at any time, the height of the blackboard 7 is fixed easily, the bottom surface of the lower fixing strip 8 is fixedly connected with the hollow groove block 27, the insertion rods 28 which are matched with the hollow groove block 27 are clamped in the hollow groove block 27, the left side surface of the insertion rods 28 is fixedly connected with the third spring 29, the left end of the third spring 29 is fixedly connected with the left inner wall of the hollow groove block 27, the third spring 29 can exert an outward force on the insertion rods 28 to assist in popping up the insertion rods 28, the insertion rod 28 can be inserted into the insertion hole 26 more conveniently and automatically.

The working principle is as follows: when the blackboard 7 needs to be lifted, the second handle 24 is firstly utilized to drive the second driving wheel 23 positioned below to rotate, and further the belt 25 wound on the outer surface of the second driving wheel 23 is driven, the second driving wheel 23 positioned below rotates, the belt 25 is driven to move through the second driving wheel 23 positioned above and the outer surface of the first driving wheel 20, and further the fixing strip 8 positioned above is driven, so that the blackboard 7 is driven to slide upwards, the blackboard 7 is matched with the first sliding grooves 4 and the first sliding blocks 5 through the two sides, the lifting and descending of the blackboard 7 are more flexible, when the proper height is reached, the inserting rod 28 positioned at the bottom surface of the fixing strip 8 positioned below is only required to be opened, the third spring 29 is used for ejecting, the inserting rod is automatically inserted into the insertion hole 26, and therefore the blackboard 7 can be lifted and can be clamped.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a think political affairs teaching and use blackboard, includes bottom plate (1), its characterized in that: the upper surface of the bottom plate (1) is fixedly connected with symmetrical supporting columns (2), the upper surfaces of the two supporting columns (2) are fixedly connected with a same top plate (3), one side surface of the two supporting columns (2) close to each other is respectively provided with a first sliding chute (4), the inner parts of the two first sliding chutes (4) are respectively connected with a first sliding block (5) matched with the first sliding chute (4) in a clamping manner, one side surface of the two first sliding blocks (5) close to each other is fixedly connected with a same blackboard (7), the upper surface and the bottom surface of the blackboard (7) are respectively connected with a fixing strip (8), the front surfaces of the two fixing strips (8) are respectively provided with a second sliding chute (9), the inner parts of the two second sliding chutes (9) are respectively connected with a second sliding block (10) matched with the second sliding chute (9) in a clamping manner, the front surfaces of the two second sliding blocks (10) are fixedly connected with a same long plate (11), one side surface of the two second sliding blocks (10) close to each other is respectively provided with a third sliding chute (12), third sliding blocks (13) matched with the third sliding grooves (12) are respectively clamped inside the two third sliding grooves (12), one side face, close to each other, of each of the two third sliding blocks (13) is fixedly connected with a same eraser (15), a second through hole (18) is formed in the middle of the upper surface of the top plate (3), a first transmission wheel (20) is hinged inside each second through hole (18) through a first pin shaft (19), supporting plates (21) are fixedly connected to the right side faces of the right side supporting column (2) and the top plate (3), second transmission wheels (23) are hinged to the two supporting plates (21) through second pin shafts (22), second handles (24) are fixedly connected to the edges of the front faces of the second transmission wheels (23) below, belts (25) are wound inside the second transmission wheels (23) below, and empty groove blocks (27) are fixedly connected to the bottom faces of the fixing strips (8) below, the inside joint of empty groove piece (27) has inserted bar (28) with empty groove piece (27) looks adaptation.

2. The blackboard for thinking of political affairs teaching of claim 1, characterized in that: two equal fixedly connected with first spring (6) below first slider (5), two the bottom of first spring (6) all with the interior diapire fixed connection of first spout (4).

3. The blackboard for thinking of political affairs teaching of claim 1, characterized in that: the back of the two third sliding blocks (13) is fixedly connected with second springs (14), and the rear ends of the second springs (14) are fixedly connected with the inner rear wall of the third sliding groove (12).

4. The blackboard for thinking of political affairs teaching of claim 1, characterized in that: the middle part of the front surface of the long plate (11) is provided with a first through hole (16), the middle part of the front surface of the eraser (15) is fixedly connected with a first handle (17), and the first handle (17) is inserted in the first through hole (16).

5. The blackboard for thinking of political affairs teaching of claim 1, characterized in that: the belt (25) is connected with the outer surface of the first transmission wheel (20) in a sliding mode through the second transmission wheel (23) above the belt, and the other end of the belt (25) is fixedly connected with the upper surface of the fixing strip (8) above the belt.

6. The blackboard for thinking of political affairs teaching of claim 1, characterized in that: the left side that lies in right side support column (2) is seted up a plurality of evenly distributed's jack (26), jack (26) are the straight line and distribute at the left side of right side support column (2).

7. The blackboard for thinking of political affairs teaching of claim 1, characterized in that: the left side face of inserted bar (28) fixedly connected with third spring (29), the left end of third spring (29) and the left inner wall fixed connection of empty groove piece (27).