CN215068770U

CN215068770U - College chinese teaching demonstration board

Info

Publication number: CN215068770U
Application number: CN202121041296.3U
Authority: CN
Inventors: 刘昉昉; 吴婷婷
Original assignee: Fujian Chuanzheng Communications College
Current assignee: Fujian Chuanzheng Communications College
Priority date: 2021-05-15
Filing date: 2021-05-15
Publication date: 2021-12-07
Anticipated expiration: 2031-05-15

Abstract

The utility model discloses a college chinese teaching demonstration board, including base and roof, the middle-end fixedly connected with fixed block of under base surface, the motor groove has been seted up to the middle-end of fixed block upper surface, the middle-end fixedly connected with servo motor at motor groove top, servo motor's output runs through the middle-end and the first gear of fixedly connected with of base inner chamber bottom, the middle-end swing joint on base right side has the screw rod, the right side fixedly connected with second gear of screw rod surface, the equal threaded connection in the left and right sides of screw rod surface has the second slider, the middle-end swing joint of second slider upper surface has the connecting rod, the top swing joint of connecting rod is in the middle-end of roof lower surface. The utility model discloses set up connecting rod, first gear, second gear and servo motor, reached the purpose of being convenient for go up and down, solved current college chinese teaching demonstration board lift difficulty, unable quick adjustment height when leading to its use influences the problem of teaching effect.

Description

College chinese teaching demonstration board

Technical Field

The utility model relates to a chinese teaching technical field specifically is a college chinese teaching demonstration board.

Background

Along with the development of society, people attach more and more importance to next generation education, university's chinese is a basic subject in the education of our country, often need use demonstration board to carry out a large amount of blackboard writings in the teaching in-process of university's chinese, the teaching board is the face of placing in the classroom or meeting room usually, write the content with chalk or water-based pen, play the effect of explanation demonstration, demonstration board plays vital role in teaching process, demonstration board can make things convenient for mr's explanation, through demonstrating can make the more accelerated grasp knowledge point of student, and current university's chinese teaching demonstration board goes up and down difficultly, lead to its unable quick adjustment height when using, influence teaching effect, for this reason, we propose a university's chinese teaching demonstration board.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a college chinese teaching demonstration board possesses the advantage of being convenient for to go up and down, has solved current college chinese teaching demonstration board lift difficulty, can't quick adjustment height when leading to its use, influences the problem of teaching effect.

In order to achieve the above object, the utility model provides a following technical scheme: a university Chinese teaching demonstration board comprises a base and a top plate, wherein a fixed block is fixedly connected to the middle end of the lower surface of the base, a motor groove is formed in the middle end of the upper surface of the fixed block, a servo motor is fixedly connected to the middle end of the top of the motor groove, the output end of the servo motor penetrates through the middle end of the bottom of an inner cavity of the base and is fixedly connected with a first gear, a screw rod is movably connected to the middle end of the right side of the base, a second gear is fixedly connected to the right side of the outer surface of the screw rod, the first gear is meshed with the second gear, a second sliding block is in threaded connection with the left side and the right side of the outer surface of the screw rod, a connecting rod is movably connected to the middle end of the upper surface of the second sliding block, the top end of the connecting rod is movably connected to the middle end of the lower surface of the top plate, a limiting rod is fixedly connected to the right side of the upper surface of the base, and a pointer is arranged at the top of the limiting rod, the fixed slot has been seted up on the positive right side of roof, the middle-end fixedly connected with demonstration board body of roof upper surface.

Preferably, the sliding groove is formed in the left side of the front face of the top plate, the first sliding block is connected to the right side of the bottom of the sliding groove in a sliding mode, and the fixing rod is fixedly connected to the middle end of the lower surface of the first sliding block.

Preferably, the lower end of the left side of the fixing rod is fixedly connected with a placing box, and the middle end of the left side of the placing box is fixedly connected with a pull ring.

Preferably, the middle end of the left side of the fixing groove is movably connected with a second pulley, and the right end of the second pulley is in contact with the left side of the limiting rod.

Preferably, the left side and the right side of the lower surface of the base are fixedly connected with shock absorbers, and the bottoms of the shock absorbers are movably connected with first pulleys.

Preferably, the lower ends of the left side and the right side of the fixing block are fixedly connected with electric telescopic rods, and the telescopic ends of the electric telescopic rods are fixedly connected with limiting blocks.

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

the utility model is provided with a connecting rod, a first gear, a second gear and a servo motor, through the arranged shock absorber and a first pulley, the demonstration board is convenient to move, the electric telescopic rod is opened to expand through an external controller, the electric telescopic rod drives a limit block to expand, the first pulley is fixed, a pull ring is pulled, the pull ring drives a first slider to slide left and right in a chute through a placing box, a teaching aid can be placed in the placing box, the servo motor is opened to work through the external controller, the servo motor drives the first gear to rotate, the first gear drives a screw rod to rotate through a second gear, the screw rod drives a second slider to slide left and right in an inner cavity of a base, the second slider drives the connecting rod to move, the connecting rod lifts a top plate, the stability of the top plate during lifting can be increased through the arranged limit rod and the second pulley, the purpose of convenient lifting is achieved, the lifting difficulty of the existing demonstration board for teaching of college language is solved, the height of the teaching aid can not be quickly adjusted when the teaching aid is used, and the teaching effect is affected.

Drawings

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

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

FIG. 3 is an enlarged schematic view of the structure at the position A of the present invention;

fig. 4 is an enlarged schematic view of the position B of the present invention.

In the figure: 1. a base; 2. a shock absorber; 3. a first pulley; 4. a top plate; 5. placing the box; 6. a demonstration board body; 7. a pointer; 8. a limiting rod; 9. a fixed block; 10. a first slider; 11. a chute; 12. a pull ring; 13. fixing the rod; 14. a second slider; 15. a limiting block; 16. an electric telescopic rod; 17. a connecting rod; 18. a screw; 19. a first gear; 20. a motor slot; 21. a second gear; 22. a servo motor; 23. fixing grooves; 24. a second pulley.

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.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "connected", and the like are to be construed broadly, 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.

The utility model discloses a base 1, bumper shock absorber 2, first pulley 3, roof 4, place box 5, demonstration board body 6, teacher's pointer 7, gag lever post 8, fixed block 9, first slider 10, spout 11, pull ring 12, dead lever 13, second slider 14, stopper 15, electric telescopic handle 16, connecting rod 17, screw rod 18, first gear 19, motor groove 20, second gear 21, servo motor 22, fixed slot 23 and second pulley 24 part are the parts that general standard or technical personnel in the field know, its structure and principle all are this technical staff's accessible technical manual learn or learn through conventional experimental method.

Referring to fig. 1-4, a university Chinese teaching demonstration board comprises a base 1 and a top plate 4, wherein the left side and the right side of the lower surface of the base 1 are both fixedly connected with a damper 2, the bottom of the damper 2 is movably connected with a first pulley 3, the lower ends of the left side and the right side of a fixed block 9 are both fixedly connected with an electric telescopic rod 16, the telescopic end of the electric telescopic rod 16 is fixedly connected with a limit block 15, the middle end of the lower surface of the base 1 is fixedly connected with the fixed block 9, the middle end of the upper surface of the fixed block 9 is provided with a motor groove 20, the middle end of the top of the motor groove 20 is fixedly connected with a servo motor 22, the output end of the servo motor 22 penetrates through the middle end of the bottom of the inner cavity of the base 1 and is fixedly connected with a first gear 19, the middle end of the right side of the base 1 is movably connected with a screw 18, the right side of the outer surface of the screw 18 is fixedly connected with a second gear 21, the first gear 19 is meshed with the second gear 21, the left side and the right side of the outer surface of the screw 18 are both in threaded connection with a second slider 14, the middle end of the upper surface of the second slider 14 is movably connected with a connecting rod 17, the top end of the connecting rod 17 is movably connected with the middle end of the lower surface of the top plate 4, the front left side of the top plate 4 is provided with a chute 11, the right side of the bottom of the chute 11 is slidably connected with a first slider 10, the middle end of the lower surface of the first slider 10 is fixedly connected with a fixed rod 13, the left lower end of the fixed rod 13 is fixedly connected with a placing box 5, the left middle end of the placing box 5 is fixedly connected with a pull ring 12, the right side of the upper surface of the base 1 is fixedly connected with a limiting rod 8, the top of the limiting rod 8 is provided with a pointer 7, the front right side of the top plate 4 is provided with a fixed groove 23, the left middle end of the fixed groove 23 is movably connected with a second pulley 24, the right end of the second pulley 24 is in contact with the left side of the limiting rod 8, the middle end of the upper surface of the top plate 4 is fixedly connected with a demonstration plate body 6, the demonstration board is convenient to move by arranging the connecting rod 17, the first gear 19, the second gear 21 and the servo motor 22, the electric telescopic rod 16 is opened to stretch by an external controller through the arranged shock absorber 2 and the first pulley 3, the electric telescopic rod 16 drives the limiting block 15 to stretch, the first pulley 3 is fixed, the pull ring 12 is pulled, the pull ring 12 drives the first slider 10 to slide left and right in the sliding groove 11 through the placing box 5, a teaching aid can be placed in the placing box 5, the servo motor 22 is opened to work through the external controller, the servo motor 22 drives the first gear 19 to rotate, the first gear 19 drives the screw rod 18 to rotate through the second gear 21, the screw rod 18 drives the second slider 14 to slide left and right in the inner cavity of the base 1, the second slider 14 drives the connecting rod 17 to move, the connecting rod 17 lifts the top board 4, the stability of the lifting of the top board 4 can be increased by the arranged limiting rod 8 and the second pulley 24, the purpose of being convenient for go up and down has been reached, and external controller is the PLC controller in this application, and simultaneously, two wiring ends of external controller are connected with power plug through the wire, and adopt the commercial power to supply power in this application.

When in use, the connecting rod 17, the first gear 19, the second gear 21 and the servo motor 22 are arranged, the demonstration board is convenient to move through the arranged shock absorber 2 and the first pulley 3, the electric telescopic rod 16 is opened to extend through the external controller, the electric telescopic rod 16 drives the limiting block 15 to extend, the first pulley 3 is fixed, the pull ring 12 is pulled, the pull ring 12 drives the first slide block 10 to slide left and right in the chute 11 through the placing box 5, the teaching aid can be placed in the placing box 5, the servo motor 22 is opened to work through the external controller, the servo motor 22 drives the first gear 19 to rotate, the first gear 19 drives the screw rod 18 to rotate through the second gear 21, the screw rod 18 drives the second slide block 14 to slide left and right in the inner cavity of the base 1, the second slide block 14 drives the connecting rod 17 to move, the connecting rod 17 drives the top board 4, the limiting rod 8 and the second pulley 24 are arranged, stability when 4 lifts of multiplicable roof has reached the purpose of being convenient for to go up and down, has solved current college chinese teaching demonstration board and has gone up and down the difficulty, can't quick adjustment height when leading to its use, influences the problem of teaching effect.

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. The utility model provides a university's chinese teaching demonstration board, includes base (1) and roof (4), its characterized in that: the middle end of the lower surface of the base (1) is fixedly connected with a fixed block (9), the middle end of the upper surface of the fixed block (9) is provided with a motor groove (20), the middle end of the top of the motor groove (20) is fixedly connected with a servo motor (22), the output end of the servo motor (22) penetrates through the middle end of the bottom of the inner cavity of the base (1) and is fixedly connected with a first gear (19), the middle end of the right side of the base (1) is movably connected with a screw rod (18), the right side of the outer surface of the screw rod (18) is fixedly connected with a second gear (21), the first gear (19) is meshed with the second gear (21), the left side and the right side of the outer surface of the screw rod (18) are both in threaded connection with a second sliding block (14), the middle end of the upper surface of the second sliding block (14) is movably connected with a connecting rod (17), and the top end of the connecting rod (17) is movably connected with the middle end of the lower surface of the top plate (4), the demonstration board comprises a base (1), a limiting rod (8) is fixedly connected to the right side of the upper surface of the base (1), a pointer (7) is arranged at the top of the limiting rod (8), a fixing groove (23) is formed in the right side of the front face of a top plate (4), and a demonstration board body (6) is fixedly connected to the middle end of the upper surface of the top plate (4).

2. The university Chinese teaching demonstration board according to claim 1, wherein: spout (11) have been seted up to the positive left side of roof (4), the right side sliding connection of spout (11) bottom has first slider (10), the middle-end fixedly connected with dead lever (13) of first slider (10) lower surface.

3. The university Chinese teaching demonstration board according to claim 2, wherein: the lower end of the left side of the fixed rod (13) is fixedly connected with a placing box (5), and the middle end of the left side of the placing box (5) is fixedly connected with a pull ring (12).

4. The university Chinese teaching demonstration board according to claim 1, wherein: the middle end on the left side of the fixing groove (23) is movably connected with a second pulley (24), and the right end of the second pulley (24) is in contact with the left side of the limiting rod (8).

5. The university Chinese teaching demonstration board according to claim 1, wherein: the equal fixedly connected with bumper shock absorber (2) of the left and right sides of base (1) lower surface, the bottom swing joint of bumper shock absorber (2) has first pulley (3).

6. The university Chinese teaching demonstration board according to claim 1, wherein: the equal fixedly connected with electric telescopic handle (16) of lower extreme of fixed block (9) left and right sides, the flexible end fixedly connected with stopper (15) of electric telescopic handle (16).