High vocational English spelling demonstration board

Abstract

The utility model relates to the technical field of demonstration boards, and discloses a higher vocational English spelling demonstration board which comprises a demonstration board body and a connecting board, fixing boards are fixedly arranged on the two sides of the connecting board, screw rods are rotatably embedded in the lower end faces of the two fixing boards, telescopic cylinders are arranged at the lower ends of the outer surfaces of the two screw rods in a threaded and sleeved mode, and the telescopic cylinders are connected with the connecting board. A rotating shaft is rotatably arranged in the lower end of the connecting plate, and a worm is rotatably embedded in the middle point of the lower end of the front end face of the connecting plate. According to the utility model, the demonstration board can be driven to rotate by rotating the threaded rod, so that the inclination of the demonstration board can be adjusted, and the situation that the demonstration board moves after being adjusted after being used for a long time can be avoided; and meanwhile, a worm fixed with a hand wheel is rotated to drive two screw rods to rotate through a rotating shaft fixed with a worm wheel, so that a telescopic cylinder in threaded sleeve connection can be driven to stretch and extend, and the fixation of the demonstration board can be adjusted more conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of demonstration boards, in particular to a demonstration board for higher vocational English spelling. Background Technique

[0002] An English spelling demonstration board is a teaching tool mainly used to help students improve their spelling ability and vocabulary. It is usually used in the classroom, which can visually display words and spelling rules and promote students' learning and practice.

[0003] Currently, when most existing demonstration boards are used for teaching demonstrations, they need to be adjusted according to different usage conditions. At the same time, most existing demonstration boards adjust and fix the inclination angle of the demonstration board by fixing knobs after rotating the demonstration board. Since the fixing method using fixing knobs may cause the fixing knobs to become stripped after long-term use, it is difficult to fix the demonstration board more stably. At the same time, most demonstration boards are difficult to adjust the height of the demonstration board according to different usage situations. Therefore, those skilled in the art have provided a demonstration board for higher vocational English spelling to solve the problems raised in the above background technique. Content of the Utility Model

[0004] The purpose of the utility model is to solve the deficiencies existing in the prior art, and a demonstration board for higher vocational English spelling is proposed. By rotating the threaded rod, the demonstration board can be driven to rotate, so that the inclination of the demonstration board can be adjusted, and the situation that the demonstration board moves after adjustment after long-term use can also be avoided. At the same time, rotating the worm fixed with a handwheel can drive two screw rods to rotate through the rotating shaft fixed with a worm gear, so that the telescopic cylinder sleeved with threads can be driven to expand and contract, so that the fixation of the demonstration board can be adjusted more conveniently.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A demonstration board for higher vocational English spelling, including a demonstration board main body and a connecting plate. Fixed plates are fixedly arranged on both sides of the connecting plate. The lower ends of the two fixed plates are rotatably embedded with screw rods. Telescopic cylinders are threadedly sleeved on the outer surfaces of the lower ends of the two screw rods. A rotating shaft is rotatably arranged inside the lower end of the connecting plate. A worm is rotatably embedded at the midpoint of the lower end of the front surface of the connecting plate;

[0007] A rotating block is rotatably arranged at the midpoint of the lower end surface of the demonstration board main body. A movable block is slidably arranged at the midpoint of the upper end of the front surface of the connecting plate. A threaded rod is rotatably arranged on the front surface of the movable block. A limiting plate is fixedly arranged at the upper end of the midpoint of the front surface of the connecting plate;

[0008] Through the above technical solution, after the screw rod is rotatably arranged on the lower end face of the fixed plate, when rotating, it can drive the telescopic cylinder sleeved with the thread to extend, so as to change the position height of the demonstration board. At the same time, the rotating shaft rotatably arranged in the connecting plate can drive the rotating shaft to rotate through the worm after the worm gear is fixedly sleeved. At the same time, the movable block rotatably arranged on the lower end face of the demonstration board main body can drive the demonstration board main body to rotate under the action of the threaded rod sleeved with the thread.

[0009] Further, a first bevel gear is fixedly arranged on both sides of the rotating shaft, and a second bevel gear is fixedly arranged on the upper end faces of the two screw rods. The two first bevel gears are respectively meshed and connected with the two second bevel gears;

[0010] Through the above technical solution, after the first bevel gear is fixedly arranged on both sides of the rotating shaft, it can be engaged with the second bevel gear fixedly arranged on the upper end face of the screw rod, so that the rotating shaft can drive the two screw rods to rotate.

[0011] Further, a worm gear is fixedly sleeved at the midpoint of the outer surface of the rotating shaft, and the upper end of the outer surface of the worm is meshed with the lower end of the outer surface of the worm gear;

[0012] Through the above technical solution, after the worm gear is fixedly sleeved on the outer surface of the rotating shaft, the rotating shaft can be driven to rotate through the worm.

[0013] Further, the rotating block is threadedly sleeved on the outer surface of the threaded rod, and the front end of the outer surface of the threaded rod is movably arranged on the front end face of the limiting plate;

[0014] Through the above technical solution, after the rotating block is threadedly sleeved on the outer surface of the threaded rod, the threaded rod can be rotated to drive the demonstration board main body to rotate. At the same time, the fixed limiting plate can prevent the threaded rod from falling off.

[0015] Further, the demonstration board main body is rotatably arranged at the upper end of the opposite sides of the two fixed plates, and a hand wheel is fixedly arranged on the front end face of the worm;

[0016] Through the above technical solution, the fixedly arranged hand wheel can better drive the threaded rod to rotate, and at the same time, the demonstration board main body can be driven by the rotating block to be adjusted at different angles between the fixed plates.

[0017] Further, a storage board is rotatably embedded at the lower end of the front end face of the demonstration board main body, and a fixed strip is fixedly arranged at the lower end of one side of the front end face of the demonstration board main body;

[0018] Through the above technical solution, after the storage board is rotatably arranged on the front end face of the demonstration board main body, the user's items can be placed when it is opened.

[0019] Furthermore, bottom plates are fixedly arranged on the lower end faces of both of the telescopic cylinders, and universal wheels are fixedly arranged at the front end and the rear end of the lower end faces of both of the bottom plates;

[0020] Through the above technical solution, after the bottom plate fixedly provided with the universal wheel is fixed on the lower end face of the telescopic cylinder, the position of the demonstration board can be adjusted according to requirements.

[0021] The utility model has the following beneficial effects:

[0022] 1. For a vocational college English spelling demonstration board proposed by the utility model, after an activity board is slidably arranged at the midpoint of the front end of the front end face of the connecting plate, a threaded rod can be rotatably arranged on the front end face of the activity board. After the rotating block rotatably arranged at the midpoint of the lower end face of the demonstration board main body between two fixed plates is threadedly sleeved on the outer surface of the threaded rod, when the threaded rod is rotated, the demonstration board main body with the rotating block can be driven to rotate, so that the inclination angle of the demonstration board main body can be changed, and the demonstration effect of the demonstration board main body can be improved.

[0023] 2. For a vocational college English spelling demonstration board proposed by the utility model, after a screw rod is rotatably embedded at the lower end face of two fixed plates, a telescopic cylinder can be threadedly sleeved on the outer surface of the screw rod. At the same time, after the device is rotatably embedded in the connecting plate, by rotating a worm fixed with a worm gear, the rotating shaft fixedly sleeved with the worm gear can be driven to rotate, and at the same time, the screw rod can also be driven to rotate by the rotating shaft, so that the telescopic cylinder can be adjusted to be extended, and the position height of the demonstration board main body can be adjusted, and the demonstration effect of the demonstration board can be further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is the first isometric schematic diagram of the utility model;

[0025] Figure 2 is the second isometric schematic diagram of the utility model;

[0026] Figure 3 is the isometric schematic diagram of the demonstration board main body of the utility model;

[0027] Figure 4 is the cross-sectional schematic diagram of the utility model;

[0028] Figure 5 is the side cross-sectional schematic diagram of the utility model;

[0029] Figure 6 is the cross-sectional schematic diagram of the demonstration board main body of the utility model.

[0030] LEGEND DESCRIPTION:

[0031] 1. Demonstration board main body; 2. Fixed plate; 3. Connecting plate; 4. Telescopic cylinder; 5. Storage plate; 6. Limiting plate; 7. Bottom plate; 8. Universal wheel; 9. Movable block; 10. Threaded rod; 11. Handwheel; 12. Rotating block; 13. Fixed strip; 14. First bevel gear; 15. Second bevel gear; 16. Screw; 17. Worm gear; 18. Rotating shaft; 19. Worm. Detailed implementation manners

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0033] Referring to Figure 1-6 , an embodiment provided by the present invention: A vocational English spelling demonstration board includes a demonstration board main body 1 and a connecting plate 3. After fixed plates 2 are fixedly arranged on both sides of the connecting plate 3, the inclination angle of the demonstration board main body 1 can be adjusted by rotating the threaded rod 10. After screw rods 16 are rotatably embedded in the lower end faces of the two fixed plates 2, they can be threadedly sleeved with the telescopic cylinders 4. The telescopic cylinders 4 are threadedly sleeved on the outer surfaces of the two screw rods 16 near the lower end. After the telescopic cylinders 4 and the screw rods 16 are threadedly sleeved, the screw rods 16 can be rotated to drive the telescopic cylinders 4 to extend. A rotating shaft 18 is rotatably arranged inside the lower end of the connecting plate 3, and a worm 19 is rotatably embedded at the midpoint of the front end face of the connecting plate 3. After the rotating shaft 18 is rotatably arranged inside the connecting plate 3, the rotating shaft 18 fixedly sleeved with a worm gear 17 can be driven to rotate by the worm 19;

[0034] After a rotating block 12 is rotatably arranged at the midpoint of the lower end face of the demonstration board main body 1, it can be threadedly sleeved with the threaded rod 10 rotatably arranged on the front end face of the movable plate. A movable block 9 is slidably arranged at the midpoint of the upper end of the front end face of the connecting plate 3, and a threaded rod 10 is rotatably arranged on the front end face of the movable block 9. A limiting plate 6 is fixedly arranged at the upper end near the midpoint of the front end face of the connecting plate 3. After the movable block 9 is slidably arranged in the connecting plate 3, after the demonstration board main body 1 is rotationally adjusted, the movable block 9 rotatably provided with the threaded rod 10 can be driven to move up and down to a certain extent. At the same time, after the outer surface of the threaded rod 10 is movably arranged in the limiting plate 6 at the front end, the situation of the threaded rod 10 falling off can be avoided.

[0035] On both sides of the rotating shaft 18, a first bevel gear 14 is fixedly arranged. On the upper end faces of two screw rods 16, a second bevel gear 15 is fixedly arranged. The two first bevel gears 14 are respectively meshed and connected with the two second bevel gears 15. After meshing and connecting the first bevel gears 14 fixedly arranged on both sides of the rotating shaft 18 with the two second bevel gears 15 fixedly arranged on the upper end faces of the screw rods 16, when the rotating shaft 18 rotates, the two screw rods 16 can be driven to rotate. At the midpoint of the outer surface of the rotating shaft 18, a worm gear 17 is fixedly sleeved. The upper end of the outer surface of the worm 19 is meshed and connected with the lower end of the outer surface of the worm gear 17. After fixedly sleeving the worm gear 17 on the outer surface of the rotating shaft 18, the rotating shaft 18 can be driven to rotate by the meshed worm 19.

[0036] The rotating block 12 is threadedly sleeved on the outer surface of the threaded rod 10. The outer surface of the threaded rod 10 is movably arranged on the front end face of the limiting plate 6. After threadedly sleeving the rotating block 12 on the outer surface of the threaded rod 10, when the threaded rod 10 is rotated, the demonstration board main body 1 provided with the rotating block 12 can be driven to rotate and adjust, so that the inclination angle of the demonstration board main body 1 can be changed, and at the same time, the adjusted demonstration board main body 1 can be fixed. The demonstration board main body 1 is rotatably arranged at the upper end of the relative side of the two fixing plates 2. A hand wheel 11 is fixedly arranged on the front end face of the worm 19. After rotatably arranging the demonstration board main body 1 between the two fixing plates 2, the demonstration board main body 1 can be rotated and adjusted better. The fixedly arranged hand wheel 11 can drive the worm 19 to rotate better.

[0037] A storage board 5 is rotatably embedded at the lower end side of the front end face of the demonstration board main body 1. A fixing strip 13 is fixedly arranged on one side of the front end face of the demonstration board main body 1 near the lower end. By pulling the groove handle fixed on the upper end of the front end face of the storage board 5, the storage board 5 can be pulled out, so that the user's items can be stored. The fixedly arranged fixing strip 13 can play a role in supporting and fixing the storage board 5. The lower end faces of the two telescopic cylinders 4 are both fixedly provided with a bottom plate 7. The front end and the rear end of the lower end faces of the two bottom plates 7 are both fixedly provided with universal wheels 8. After fixedly arranging the bottom plate 7 fixed with the universal wheels 8 on the lower end faces of the telescopic cylinders 4, the position of the demonstration board can be moved according to needs, and the demonstration effect of the demonstration board can be improved.

[0038] Working principle: When in use, the user can rotate the threaded rod 10 fixed with a handle according to the teaching requirements, so as to drive the demonstration board main body 1 rotatably arranged between the fixed plates 2 to rotate and change the inclination angle of the demonstration board main body 1. At the same time, the user can also rotate the handwheel 11 to drive the worm 19 to rotate according to the needs. After pulling out the storage plate 5 arranged to rotate, the user's teaching plan books can be stored. At the same time, the worm 19 can drive the rotating shaft 18 fixed with the worm wheel 17 to rotate, and can also drive the screw rod 16 threadedly sleeved with the telescopic cylinder 4 to rotate, so as to drive the telescopic cylinder 4 to extend and adjust, and adjust the position height of the demonstration board main body 1, and can further improve the demonstration effect of the demonstration board.

[0039] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A vocational English spelling demonstration board, comprising a demonstration board main body (1) and a connecting board (3), characterized in that: Both sides of the connecting plate (3) are fixedly provided with fixing plates (2). The lower end surfaces of the two fixing plates (2) are rotatably embedded with screw rods (16). The outer surfaces of the two screw rods (16) near the lower end are threadedly sleeved with telescopic cylinders (4). The lower end of the connecting plate (3) is rotatably provided with a rotating shaft (18). The midpoint of the lower end of the front surface of the connecting plate (3) is rotatably embedded with a worm (19). A rotating block (12) is rotatably provided at the midpoint of the lower end surface of the demonstration board main body (1). A movable block (9) is slidably provided at the midpoint of the upper end of the front surface of the connecting plate (3). A threaded rod (10) is rotatably provided on the front surface of the movable block (9). A limiting plate (6) is fixedly provided at the upper end of the midpoint of the front surface of the connecting plate (3).

2. The English spelling demonstration board for higher vocational education according to claim 1, characterized in that: Both sides of the rotating shaft (18) are fixedly provided with first bevel gears (14). The upper end surfaces of the two screw rods (16) are fixedly provided with second bevel gears (15). The two first bevel gears (14) are respectively meshed and connected with the two second bevel gears (15).

3. The English spelling demonstration board for higher vocational education according to claim 1, characterized in that: A worm gear (17) is fixedly sleeved at the midpoint of the outer surface of the rotating shaft (18). The upper end of the outer surface of the worm (19) is meshed and connected with the lower end of the outer surface of the worm gear (17).

4. The English spelling demonstration board for higher vocational education according to claim 1, characterized in that: The rotating block (12) is threadedly sleeved on the outer surface of the threaded rod (10). The outer surface of the threaded rod (10) near the front end is movably provided on the front surface of the limiting plate (6).

5. The spelling demonstration board for higher vocational English according to claim 1, characterized in that: The demonstration board main body (1) is rotatably provided at the upper end of the opposite sides of the two fixing plates (2). A handwheel (11) is fixedly provided on the front surface of the worm (19).

6. The English spelling demonstration board for higher vocational education according to claim 1, wherein: A storage board (5) is rotatably embedded on one side of the lower end of the front surface of the demonstration board main body (1). A fixing strip (13) is fixedly provided on one side of the lower end of the front surface of the demonstration board main body (1).

7. The spelling demonstration board for higher vocational English according to claim 1, wherein: Both lower end surfaces of the two telescopic cylinders (4) are fixedly provided with bottom plates (7). Universal wheels (8) are fixedly provided at the front end and the rear end of the lower end surfaces of the two bottom plates (7).

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