CN211403749U

CN211403749U - Demonstration board for education

Info

Publication number: CN211403749U
Application number: CN202020477817.9U
Authority: CN
Inventors: 任寰; 赵骏; 韩珏
Original assignee: Nanyang Institute of Technology
Current assignee: Nanyang Institute of Technology
Priority date: 2020-04-03
Filing date: 2020-04-03
Publication date: 2020-09-01
Anticipated expiration: 2030-04-03

Abstract

The utility model discloses a demonstration board for education, which comprises a base, wherein a bottom plate is welded at the bottom of the base, two connecting rods which are symmetrical by taking the central point of the bottom plate as a symmetry center are rotatably connected at the top of the bottom plate, a loop bar is welded at one end of each connecting rod, which is far away from the bottom plate, and a square limiting groove is formed in the inner side wall of the loop bar; after this demonstration board removes to the assigned position, the telescopic shaft that can pass through the on-off control telescopic link stretches out, the telescopic shaft forms certain contained angle with loop bar and lead screw, when the telescopic shaft drives the commentaries on classics board and extends to the ground, the telescopic shaft, the loop bar, the lead screw, base and blackboard form triangle-shaped, this triangle-shaped supports and has fixed the blackboard, make the teacher can be relieved one-hand write, it is very convenient, teaching efficiency has been increased, and simultaneously, can manually rotate the change, adjust the length of lead screw, and then adjust this demonstration board area, can change area according to actual conditions.

Description

Demonstration board for education

Technical Field

The utility model relates to an education technical field specifically is an education is with demonstration board.

Background

Education is a social science that studies human educational activities and their laws. It is widely present in human life. The general rule of education is revealed through the research on educational phenomena and educational problems. After the middle of the 19 th century, the Marxist was generated, which laid the foundation of dialectical materialist philosophy and natural science for the scientification of education. The rapid development of modern production and scientific technology and the universality and richness of educational practices further promote the development of education. The independence of any subject depends primarily on the subject being a particular subject, or on subjects having a different subject from other subjects. Educational subjects are human educational phenomena and problems, as well as the general rules of education. When an instructor educates students, the instructor often needs to write by using a demonstration board to help the students to better understand learning contents.

Present, general mobilizable demonstration plate structure is comparatively single, writes on the blackboard of teacher's needs demonstration board, and when writing the dynamics great, platelike demonstration board inclines easily to turn on one's side for the teacher need go fixed demonstration board with another hand when writing, and is very troublesome, reduces teaching efficiency. To this end, a demonstration board for education is proposed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a demonstration board for education to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a demonstration board for education, includes the base, the bottom welding of base has the bottom plate, the top of bottom plate is rotated and is connected with quantity for two connecting rods that use the central point of bottom plate as the symmetry center symmetry, the one end welding that the bottom plate was kept away from to the connecting rod has the loop bar, square spacing groove has been seted up to the inside wall of loop bar, the inside sliding connection of square spacing groove has square limiting plate, the top fixedly connected with lead screw of square limiting plate, the top of lead screw extends to the outside of loop bar through the inner circle of loop bar, the one end rotation that the connecting rod was kept away from to the loop bar is connected with the swivel, the inside wall of swivel passes through the lateral wall threaded connection of internal thread and lead screw, the top welding of lead screw has even piece, one side welding that the lead screw was kept away from to even piece has the second.

As further preferable in the present technical solution: one side of the connecting block far away from the base is welded with a third support, the outer side wall of the third support is rotatably connected with a rotating plate, and one side of the rotating plate far away from the connecting block is bonded with an anti-slip plate.

As further preferable in the present technical solution: the bottom of bottom plate rotates and is connected with quantity be four evenly distributed's carousel, the bottom welding of carousel has the support frame, one side of support frame rotates and is connected with the gyro wheel.

As further preferable in the present technical solution: the utility model discloses a blackboard, including base, top fixedly connected with fixed plate, the top fixedly connected with blackboard of fixed plate, the cover is installed at the top of blackboard, one side fixedly connected with switch of fixed plate, the top welding of fixed plate has the U template, one side and blackboard fixed connection of U template.

As further preferable in the present technical solution: one side welding that the U template was kept away from to the blackboard has first support, the one end of first support is rotated and is connected with the telescopic link, the output shaft welding of telescopic link has the telescopic shaft, the one end that first support was kept away from to the telescopic shaft is connected with the second leg rotation.

As further preferable in the present technical solution: the electrical output end of the switch is electrically connected with the electrical input end of the telescopic rod.

Compared with the prior art, the beneficial effects of the utility model are that: after this demonstration board removes to the assigned position, the telescopic shaft that can pass through the on-off control telescopic link stretches out, the telescopic shaft forms certain contained angle with loop bar and lead screw, when the telescopic shaft drives the commentaries on classics board and extends to the ground, the telescopic shaft, the loop bar, the lead screw, base and blackboard form triangle-shaped, this triangle-shaped supports and has fixed the blackboard, make the teacher can be relieved one-hand write, it is very convenient, teaching efficiency has been increased, and simultaneously, can manually rotate the change, adjust the length of lead screw, and then adjust this demonstration board area, can change area according to actual conditions.

Drawings

Fig. 1 is a schematic side view of the present invention;

fig. 2 is a side view of the present invention;

FIG. 3 is an enlarged schematic view of the structure of the area A in FIG. 1 according to the present invention;

fig. 4 is an enlarged schematic view of the structure of the area B in fig. 1 according to the present invention.

In the figure: 1. a base; 2. a base plate; 3. a turntable; 4. a support frame; 5. a roller; 6. a fixing plate; 7. a switch; 8. a U-shaped plate; 9. a blackboard; 10. a shield cover; 11. a first bracket; 12. a telescopic rod; 13. a telescopic shaft; 14. a second bracket; 15. connecting blocks; 16. a third support; 17. rotating the plate; 18. an anti-skid plate; 19. a screw rod; 20. rotating the ring; 21. an anti-slip sleeve; 22. a loop bar; 23. a square limiting groove; 24. a square limit plate; 25. a connecting rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Examples

Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a demonstration board for education, includes base 1, the bottom welding of base 1 has bottom plate 2, the top of bottom plate 2 is rotated and is connected with quantity for two connecting rod 25 that the central point that uses bottom plate 2 is symmetry center symmetry, the one end welding that bottom plate 2 was kept away from to connecting rod 25 has loop bar 22, square spacing groove 23 has been seted up to the inside wall of loop bar 22, the inside sliding connection of square spacing groove 23 has square limiting plate 24, the top fixedly connected with lead screw 19 of square limiting plate 24, the top of lead screw 19 extends to the outside of loop bar 22 through the inner circle of loop bar 22, the one end rotation that connecting rod 25 was kept away from to loop bar 22 is connected with swivel 20, swivel 20's inside wall passes through the lateral wall threaded connection of internal thread and lead screw 19, the top welding of lead screw 19 has link 15, link 15 keeps away from one side welding of lead screw 19 has second support 14, the outer side wall of the swivel 20 is adhered with an anti-slip sleeve 21.

In this embodiment, specifically: one side of the connecting block 15, which is far away from the base 1, is welded with a third support 16, the outer side wall of the third support 16 is rotatably connected with a rotating plate 17, one side of the rotating plate 17, which is far away from the connecting block 15, is bonded with an anti-skid plate 18, the rotating plate 17 is used for supporting on the ground, and the anti-skid plate 18 can increase the friction force.

In this embodiment, specifically: the bottom of bottom plate 2 is rotated and is connected with the evenly distributed's that quantity is four carousel 3, the bottom welding of carousel 3 has support frame 4, one side of support frame 4 is rotated and is connected with gyro wheel 5, and through above setting, gyro wheel 5 and ground contact for the teacher can promote this demonstration board.

In this embodiment, specifically: the utility model discloses a blackboard, including base 1, top fixedly connected with fixed plate 6, top fixedly connected with blackboard 9 of fixed plate 6, the cover 10 is installed at the top of blackboard 9, one side fixedly connected with switch 7 of fixed plate 6, the top welding of fixed plate 6 has U template 8, one side and blackboard 9 fixed connection of U template 8 form the chalk groove between U template 8 and the blackboard 9, and the teacher of being convenient for uses.

In this embodiment, specifically: one side welding that U template 8 was kept away from to blackboard 9 has first support 11, the one end of first support 11 is rotated and is connected with telescopic link 12, the output shaft welding of telescopic link 12 has telescopic shaft 13, the one end that first support 11 was kept away from to telescopic shaft 13 rotates with second support 14 to be connected, and telescopic link 12 can control the extension length of telescopic shaft 13.

In this embodiment, specifically: the electrical output end of the switch 7 is electrically connected with the electrical input end of the telescopic rod 12, and the switch 7 controls the telescopic rod 12 to be opened and closed.

In this embodiment, the telescopic rod 12 is a TGA-100 lifting rod.

Theory of operation or structure, in use, promote this demonstration board to the specified area, open switch 7, telescopic shaft 13 of telescopic link 12 stretches out, telescopic shaft 13 and promotion loop bar 22 and lead screw 19, form certain contained angle between it, when telescopic shaft 13 drives commentaries on classics board 17 and extends to the ground, telescopic shaft 13, loop bar 22, lead screw 19, form triangle-shaped between base 1 and the blackboard 9, this triangle-shaped supports and has fixed blackboard 9, make the teacher can write by the single hand of reassurance, it is very convenient, teaching efficiency has been increased, and simultaneously, can manually rotate swivel 20, adjust the effective length that stretches out of lead screw 19, and then adjust telescopic shaft 13, loop bar 22, lead screw 19, form triangle-shaped's size between base 1 and the blackboard 9, adjust this demonstration board area.

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 invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A demonstration board for education, comprising a base (1), characterized in that: the welding of the bottom of base (1) has bottom plate (2), the top of bottom plate (2) is rotated and is connected with quantity for two connecting rod (25) that use the central point of bottom plate (2) as symmetry center symmetry, the welding of the one end that bottom plate (2) were kept away from in connecting rod (25) has loop bar (22), square spacing groove (23) have been seted up to the inside wall of loop bar (22), the inside sliding connection of square spacing groove (23) has square limiting plate (24), the top fixedly connected with lead screw (19) of square limiting plate (24), the inner circle that the top of lead screw (19) was passed through loop bar (22) extends to the outside of loop bar (22), the one end that connecting rod (25) was kept away from in loop bar (22) is rotated and is connected with swivel (20), the inside wall of swivel (20) passes through the lateral wall threaded connection of internal thread and lead screw (19), the welding of the top of lead screw (19) has link, one side of the connecting block (15) far away from the screw rod (19) is welded with a second support (14), and the outer side wall of the rotating ring (20) is bonded with an anti-skidding sleeve (21).

2. An educational demonstration board according to claim 1, wherein: one side of the connecting block (15) far away from the base (1) is welded with a third support (16), the outer side wall of the third support (16) is rotatably connected with a rotating plate (17), and one side of the rotating plate (17) far away from the connecting block (15) is bonded with an anti-slip plate (18).

3. An educational demonstration board according to claim 1, wherein: the bottom of bottom plate (2) is rotated and is connected with quantity be four evenly distributed's carousel (3), the bottom welding of carousel (3) has support frame (4), one side of support frame (4) is rotated and is connected with gyro wheel (5).

4. An educational demonstration board according to claim 1, wherein: the utility model discloses a blackboard, including base (1), top fixedly connected with fixed plate (6), the top fixedly connected with blackboard (9) of fixed plate (6), shielding cover (10) are installed at the top of blackboard (9), one side fixedly connected with switch (7) of fixed plate (6), the top welding of fixed plate (6) has U template (8), one side and blackboard (9) fixed connection of U template (8).

5. An educational demonstration board according to claim 4, wherein: one side welding that U template (8) were kept away from in blackboard (9) has first support (11), the one end of first support (11) is rotated and is connected with telescopic link (12), the output shaft welding of telescopic link (12) has telescopic shaft (13), the one end and the second support (14) rotation that first support (11) were kept away from in telescopic shaft (13) are connected.

6. An educational demonstration board according to claim 4, wherein: the electrical output end of the switch (7) is electrically connected with the electrical input end of the telescopic rod (12).