CN214324757U

CN214324757U - Education principle teaching device convenient for demonstration

Info

Publication number: CN214324757U
Application number: CN202022760859.6U
Authority: CN
Inventors: 韦仕英; 李程云; 马月成
Original assignee: Dianxi Science And Technology Normal University
Current assignee: Dianxi Science And Technology Normal University
Priority date: 2020-11-25
Filing date: 2020-11-25
Publication date: 2021-10-01
Anticipated expiration: 2030-11-25

Abstract

The utility model relates to the technical field of teaching aids, in particular to an educational principle demonstration device convenient for demonstration, which comprises a wall body, wherein a blackboard is fixedly connected with the front center of the wall body, moving blocks are arranged at the left ends of the upper and lower sides of the front of the wall body, a pressing plate is arranged at one end of the two moving blocks close to each other, a handle is fixedly connected with the front center of the pressing plate, a groove is arranged at the center of the back of the pressing plate, the position of the pressing plate can be adjusted through the arranged adjusting groove and the adjusting spring, thereby being convenient for using a felt to clean the blackboard, the height of the felt is higher than that of the blackboard, the number of times that the felt needs to be moved when cleaning the blackboard is reduced, thereby reducing the quantity of chalk dust, reducing the possibility of causing adverse effect on the lungs of teachers, and simultaneously improving the cleaning efficiency of the blackboard, avoid causing the influence to the normal clear of class.

Description

Education principle teaching device convenient for demonstration

Technical Field

The utility model relates to a teaching aid technical field specifically is a teaching of education principle teaching device of convenient demonstration.

Background

The education belongs to the national primary subject, is an independent subject, mainly studies human education phenomena and solves the social science of the general education law of education problems and stones, and the social phenomena widely existing in human life are purposefully developed for the activities of social people. In order to conveniently demonstrate education, a blackboard is usually obtained to serve as a teaching device, a blackboard eraser is usually used for erasing the blackboard at the present stage of China, when a teacher needs to erase the blackboard after completing more blackboard writings, the existing blackboard eraser can prolong the erasing time of the teacher on the blackboard, so that the normal operation of class attendance is influenced, a large amount of chalk dust can be brought by the repeated movement of the blackboard eraser, and the lung health of the teacher can be influenced for a long time.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides a teaching of education principle of convenient demonstration device possesses and cleans efficiently, and the chalk dust that has taken up when cleaning is less advantage such as, and it is lower to have solved current blackboard eraser and cleaned efficiency to the more problem of chalk dust that has taken up when cleaning.

The utility model discloses a teaching device for education principle convenient for demonstration, which comprises a wall body, a blackboard fixedly connected with the center of the front of the wall body, moving blocks are arranged at the left ends of the upper and lower sides of the front of the wall body, a pressing plate is arranged at the end where the two moving blocks are close to each other, a handle is fixedly connected with the center of the front of the pressing plate, a groove is arranged at the center of the back of the pressing plate, a fixing plate is slidably connected with the inside of the groove, a felt is fixedly connected with the center of the back of the fixing plate, the height of the felt is larger than that of the blackboard, adjusting grooves are arranged at the center of the two moving blocks close to each other, adjusting springs are fixedly connected with the left ends of the inner walls of the two adjusting grooves, the right ends of the two adjusting springs are respectively fixedly connected with the upper and lower sides of the back of the pressing plate, and the upper and lower ends of the pressing plate are respectively slidably connected with the two adjusting grooves, through the adjustment tank and the adjusting spring that set up, can adjust the position of pressing the clamp plate to be convenient for use the felt to clean the blackboard, the felt that sets up simultaneously highly is greater than the height of blackboard, has reduced the number of times that the felt need remove when cleaning the blackboard, thereby reduces the quantity of chalk dust, has reduced the possibility that causes harmful effects to teacher's lung, has also improved the efficiency of cleaning to the blackboard simultaneously, avoids causing the influence to the normal clear of going on class.

The utility model discloses a convenient education principle teaching device of demonstration, wherein the spout of transverse distribution is all opened to the positive upper and lower both sides of wall body, the side cut-out of spout is protruding type, two the equal fixedly connected with slide bar in central authorities at the movable block back, two the equal fixedly connected with slider in the back of slide bar.

The utility model discloses a convenient education principle teaching device of demonstration, wherein slide bar and slider all with spout sliding connection, and slider and spout looks block, the left end of slider is rotated and is connected with three ball, three the outer wall of ball is laminated mutually with the back of spout inner wall, through the ball that sets up, has reduced the frictional force between slider and the spout to the felt of being convenient for is cleaned the blackboard.

The utility model discloses an education principle teaching device of convenient demonstration, wherein the central authorities at both ends have all seted up flexible groove, two about the recess inner wall of pressing plate the equal fixedly connected with spring telescopic link of central authorities, two of one side are kept away from mutually to flexible inslot wall bottom surface the equal fixedly connected with block of one end that spring telescopic link is close to mutually can add the fixed plate through spring telescopic link and the block that sets up, can be convenient for fixed plate and the dismouting of pressing the pressing plate simultaneously again, be convenient for carry out the dismouting to the felt to be convenient for clear up or change the felt, guaranteed the validity of felt.

The utility model discloses an education principle teaching device of convenient demonstration, wherein the central authorities of both sides all seted up the draw-in groove about the fixed plate, two the draw-in groove respectively with two block looks blocks, the block groove has all been seted up, two to the central authorities of pressing the positive upper and lower both sides of clamp plate the block groove all vertically runs through the front of pressing clamp plate and fixed plate.

The utility model discloses a convenient education principle teaching device of demonstration, wherein the central authorities of two block groove inner wall left and right sides all are equipped with the spring pivot, and are two sets of the one end that the spring pivot is close to each other all rotates and is connected with the block pole, two are the left end of block pole respectively with two block groove looks blocks, through the block pole and the block groove that set up, further strengthened the fixed plate on the basis of spring telescopic link and block piece and pressed being connected between the clamp plate, reduce the fixed plate and press the possibility that the clamp plate takes place to separate, guaranteed the validity of felt.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model discloses an adjustment tank and the adjusting spring that set up can adjust the position of pressing the clamp plate to convenient to use felt cleans the blackboard, the felt that sets up simultaneously highly is greater than the height of blackboard, has reduced the number of times that the felt need remove when cleaning the blackboard, thereby reduces the quantity of chalk dust, has reduced the possibility that causes harmful effects to teacher's lung, has also improved the efficiency of cleaning to the blackboard simultaneously, avoids causing the influence to the normal clear of going on class.

2. The utility model discloses a spring telescopic link and the block that sets up can add the fixed plate and hold, and the dismouting of the fixed plate of being convenient for simultaneously again and press the clamp plate is convenient for carry out the dismouting to the felt to be convenient for clear up or change the felt, guaranteed the validity of felt, through the ball that sets up, reduced the frictional force between slider and the spout, thereby the felt of being convenient for cleans the blackboard.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a left side sectional view of the present invention;

FIG. 3 is an enlarged schematic view of the structure at A in FIG. 2 according to the present invention;

fig. 4 is an enlarged schematic structural diagram of the point B in fig. 2 according to the present invention.

In the figure: 1. a moving block; 2. a handle; 3. a pressing plate; 4. a wall body; 5. a chute; 6. a blackboard; 7. felt; 8. a fixing plate; 9. a slider; 10. a slide bar; 11. an adjustment groove; 12. adjusting the spring; 13. a card slot; 14. a clamping block; 15. a telescopic groove; 16. a spring telescopic rod; 17. a clamping groove; 18. A clamping rod; 19. a spring shaft; 20. and a ball.

Detailed Description

In the following description, numerous implementation details are set forth in order to provide a more thorough understanding of the present invention. It should be understood, however, that these implementation details should not be used to limit the invention. That is, in some embodiments of the invention, details of these implementations are not necessary. In addition, some conventional structures and components are shown in simplified schematic form in the drawings.

In addition, the descriptions related to "first", "second", etc. in the present invention are only for description purposes, not specifically referring to the order or sequence, and are not intended to limit the present invention, but only to distinguish the components or operations described in the same technical terms, and are not to be construed as indicating or implying any relative importance or implicit indication of the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

Referring to fig. 1-4, the teaching device for teaching educational principle convenient for demonstration of the present invention comprises a wall 4, a blackboard 6 fixedly connected to the front center of the wall 4, movable blocks 1 respectively disposed at the left ends of the upper and lower sides of the front of the wall 4, a pressing plate 3 disposed at the end of the two movable blocks 1 adjacent to each other, a handle 2 fixedly connected to the front center of the pressing plate 3, a groove formed in the center of the back of the pressing plate 3, a fixed plate 8 slidably connected to the inside of the groove, a felt 7 fixedly connected to the center of the back of the fixed plate 8, the height of the felt 7 being greater than that of the blackboard 6, an adjusting groove 11 formed in the center of the side of the two movable blocks 1 adjacent to each other, adjusting springs 12 fixedly connected to the left ends of the inner walls of the two adjusting grooves 11, right ends of the two adjusting springs 12 respectively fixedly connected to the upper and lower sides of the back of the pressing plate 3, and upper and lower ends of the pressing plate 3 respectively slidably connected to the two adjusting grooves 11, through the adjustment tank 11 and the adjusting spring 12 that set up, can adjust the position of pressing the clamp plate 3, thereby be convenient for use felt 7 to clean blackboard 6, the felt 7 that sets up simultaneously highly is greater than blackboard 6's height, the number of times that felt 7 need remove when cleaning blackboard 6 has been reduced, thereby reduce the quantity of chalk dust, the possibility that causes harmful effects to teacher's lung has been reduced, the efficiency of cleaning blackboard 6 has also been improved simultaneously, avoid causing the influence to the normal clear of going on class.

The positive upper and lower both sides of wall body 4 all opened transversely distributed's spout 5, the side cut-out of spout 5 is protruding type, the equal fixedly connected with slide bar 10 in central authorities at two movable block 1 backs, the equal fixedly connected with slider 9 in the back of two slide bars 10, slide bar 10 and slider 9 all with spout 5 sliding connection, and

slider

9 and 5 looks blocks of spout, the left end of slider 9 rotates and is connected with three ball 20, the outer wall of three ball 20 and the back of 5 inner walls of spout laminate mutually, through the ball 20 that sets up, the frictional force between slider 9 and spout 5 has been reduced, thereby be convenient for felt 7 to clean blackboard 6.

According to the recess inner wall of pressing plate 3 about the central authorities at both ends all seted up flexible groove 15, the equal fixedly connected with spring telescopic link 16 in central authorities of one side is kept away from each other to two flexible groove 15 inner wall bottom surfaces, the equal fixedly connected with block 14 of one end that two spring telescopic links 16 are close to each other, through spring telescopic link 16 and the block 14 that sets up, can add fixed plate 8 and hold, the dismouting of fixed plate 8 and pressing plate 3 of being convenient for again simultaneously, be convenient for carry out the dismouting to felt 7, thereby be convenient for clear up or change felt 7, the validity of felt 7 has been guaranteed.

Clamping grooves 13 are formed in the centers of the upper side and the lower side of the fixing plate 8, the two clamping grooves 13 are respectively clamped with the two clamping blocks 14, clamping grooves 17 are formed in the centers of the upper side and the lower side of the front surface of the pressing plate 3, the two clamping grooves 17 longitudinally penetrate through the front surfaces of the pressing plate 3 and the fixing plate 8, spring rotating shafts 19 are arranged in the centers of the left side and the right side of the inner wall of the two clamping grooves 17, two groups of spring rotating shafts 19 are rotatably connected with clamping rods 18 at one ends close to each other, the left ends of the two clamping rods 18 are respectively clamped with the two clamping grooves 17, the clamping rods 18 and the clamping grooves 17 are arranged, the connection between the fixing plate 8 and the pressing plate 3 is further enhanced on the basis of the spring telescopic rods 16 and the clamping blocks 14, the possibility of separation between the fixing plate 8 and the pressing plate 3 is reduced, and the effectiveness of the felt 7 is guaranteed.

When using the utility model discloses the time: the handle 2 is held and the handle 2 is pressed towards the blackboard 6, so that the felt 7 is attached to the blackboard 6, the handle 2 is repeatedly pushed and pulled in the transverse direction, the felt 7 can be driven to wipe the blackboard 6, and the blackboard 6 can be thoroughly wiped only by repeatedly pushing the felt 7 for a plurality of times due to the large area of the felt 7, so that the wiping efficiency is improved, and the amount of chalk dust in the wiping process is reduced; after the wiping is finished, the adjusting spring 12 can push the pressing plate 3 towards the direction away from the blackboard 6, so that the felt 7 is away from the blackboard 6; when the felt 7 needs to be cleaned or replaced, the two clamping rods 18 are extruded towards the direction of approaching each other, the two clamping rods 18 rotate by taking the spring rotating shaft 19 as an axis to be separated from the clamping grooves 13, then the fixing plate 8 can be taken out of the groove of the pressing plate 3, after the felt 7 is cleaned or replaced, the fixing plate 8 is placed into the groove of the pressing plate 3, the clamping grooves 17 on the top surface and the bottom surface of the fixing plate 8 are clamped with the clamping blocks 14, then the two clamping rods 18 are extruded towards the direction of approaching each other, the clamping rods 18 are released after the fixing plate 8 is completely placed into the groove of the pressing plate 3, the front ends of the clamping rods 18 are clamped with the clamping grooves 13, and therefore the felt 7 is cleaned or replaced.

The above description is only an embodiment of the present invention, and is not intended to limit the present invention. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. The utility model provides a teaching principle teaching device of education of convenient demonstration, includes wall body (4), its characterized in that: the central portion of the front face of the wall body (4) is fixedly connected with a blackboard (6), the left ends of the upper side and the lower side of the front face of the wall body (4) are respectively provided with a movable block (1), one end of each of the two movable blocks (1) close to each other is provided with a pressing plate (3), the central portion of the front face of the pressing plate (3) is fixedly connected with a handle (2), the central portion of the back face of the pressing plate (3) is provided with a groove, the inner portion of the groove is connected with a fixing plate (8) in a sliding manner, the central portion of the back face of the fixing plate (8) is fixedly connected with a felt (7), the height of the felt (7) is larger than that of the blackboard (6), the central portions of the two movable blocks (1) close to each other are respectively provided with an adjusting groove (11), the left ends of the inner walls of the two adjusting grooves (11) are respectively and fixedly connected with adjusting springs (12), and the right ends of the two adjusting springs (12) are respectively and fixedly connected with the upper side and the lower side of the back face of the pressing plate (3), and the upper end and the lower end of the pressing plate (3) are respectively connected with the two adjusting grooves (11) in a sliding way.

2. An educational principle demonstration apparatus for facilitating presentation according to claim 1, wherein: the upper side and the lower side of the front face of the wall body (4) are both provided with sliding grooves (5) which are transversely distributed, the side cross-sectional view of each sliding groove (5) is convex, the centers of the back faces of the two moving blocks (1) are both fixedly connected with sliding rods (10), and the back faces of the two sliding rods (10) are both fixedly connected with sliding blocks (9).

3. An educational principle demonstration apparatus for facilitating presentation according to claim 2, wherein: slide bar (10) and slider (9) all with spout (5) sliding connection, and slider (9) and spout (5) looks block, the left end of slider (9) rotates and is connected with three ball (20), three the outer wall of ball (20) is laminated with the back of spout (5) inner wall mutually.

4. An educational principle demonstration apparatus for facilitating presentation according to claim 1, wherein: the middle parts of the upper end and the lower end of the inner wall of the groove of the pressing plate (3) are provided with telescopic grooves (15), the bottom surfaces of the inner walls of the telescopic grooves (15) are far away from the middle part of one side of the inner wall of the groove, and the two spring telescopic rods (16) are fixedly connected with a clamping block (14) at the end close to each other.

5. An educational principle demonstration apparatus for facilitating presentation according to claim 1, wherein: clamping grooves (13) are formed in the centers of the upper side and the lower side of the fixing plate (8), the two clamping grooves (13) are respectively clamped with the two clamping blocks (14), clamping grooves (17) are formed in the centers of the upper side and the lower side of the front face of the pressing plate (3), and the two clamping grooves (17) longitudinally penetrate through the front faces of the pressing plate (3) and the fixing plate (8).

6. An educational principle demonstration apparatus for facilitating presentation according to claim 5, wherein: spring rotating shafts (19) are arranged in the centers of the left side and the right side of the inner walls of the two clamping grooves (17), clamping rods (18) are rotatably connected to the ends, close to each other, of the two groups of spring rotating shafts (19), and the left ends of the two clamping rods (18) are respectively clamped with the two clamping grooves (17).