Teaching equipment convenient to carry

Abstract

The utility model relates to the technical field of teaching equipment, and discloses portable teaching equipment which comprises a lower box, two folding steel frames, three reinforcing steel frames and a main board, an upper box is hinged to the upper side of the rear end face of the lower box, side grooves are formed in the two sides of the inner bottom face of the lower box, and the lower box is hinged to the side grooves. An adjusting mechanism is slidably arranged between the two side grooves, a second extension plate is hinged to the upper side of the front end face of the main plate, first extension plates are hinged to the two sides of the rear end face of the main plate, and auxiliary plates are hinged to the front sides of the upper end faces of the two first extension plates; two stabilizing sleeves are arranged on the outer end faces of the two folding steel frames in a sliding mode. According to the teaching equipment, the folding steel frame, the main plate, the first extension plate, the second extension plate and the auxiliary plate of the teaching equipment can be folded to be stored between the upper box and the lower box, so that the whole teaching equipment is more convenient to carry, and the teaching equipment can be more flexibly used.

Description

Technical Field

[0001] The utility model relates to the technical field of teaching equipment, in particular to a teaching equipment that is easy to carry. Background Art

[0002] Teaching equipment refers to various tools and facilities used to promote learning, enhance teaching effectiveness and improve learning efficiency in the process of education and training. Teaching equipment is a tool used by teachers to write, draw and display information. Teaching equipment enables teachers to convey knowledge more effectively. Choosing appropriate teaching equipment can promote more efficient learning and teaching.

[0003] Most existing teaching equipment is a teaching board erected by multiple brackets. The teaching board is large in size and fixedly connected to the brackets, making the entire teaching equipment difficult to carry. Therefore, those skilled in the art have provided a teaching equipment that is easy to carry to solve the problems raised in the above background technology. Utility Model Content

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to provide a portable teaching device, which makes the teaching device more convenient to carry.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a teaching device that is easy to carry, comprising a lower box, two folding steel frames, three reinforcing steel frames and a main board, the upper box is hingedly provided at the upper side position of the rear end surface of the lower box, side grooves are provided at both sides of the inner bottom surface of the lower box, an adjustment mechanism is slidably provided between the two side grooves, a second extension plate is hingedly provided at the upper side position of the front end surface of the main board, a first extension plate is hingedly provided at both sides of the rear end surface of the main board, sub-plates are hingedly provided at the front sides of the upper ends of the two first extension plates, two stabilizing sleeves are slidably provided on the outer end surfaces of the two folding steel frames, a first upper shell is fixedly provided at the lower side position of the rear end surfaces of the two sub-plates, and a second upper shell is fixedly provided at the lower side position of the rear end surface of the second extension plate;

[0006] The adjustment mechanism includes an adjustment plate and two folding rods, the opposite end surfaces of the lower sides of the two folding rods are fixedly provided with a clamping column, the opposite end surfaces of the two folding rods are fixedly provided with a push spring, and the upper end surfaces of the two folding rods are fixedly provided with a slide.

[0007] Furthermore, a first lower shell is fixedly provided on the upper side of the rear end surface of the two first extension plates, a first vertical plate is slidably provided on the inner walls of the two first upper shells, and the two first vertical plates are slidably provided on the inner walls of the two first lower shells respectively.

[0008] Furthermore, a second lower shell is fixedly provided on the upper side of the rear end surface of the main board, a second vertical plate is slidably provided on the inner wall of the second upper shell, and the second vertical plate is slidably provided on the inner wall of the second lower shell.

[0009] Furthermore, side rods are slidably provided on the upper positions of the inner walls on both sides of the second upper shell, and the two side rods are respectively slidably provided on the upper inner walls of the two first upper shells, and the two folding steel frames are respectively fixed on the lower side of the main board by bolts.

[0010] Furthermore, the front end surfaces of the two folding steel frames are each provided with three mounting grooves, the three reinforcing steel frames are respectively slidably arranged on the inner walls of the six mounting grooves, and the inner walls of the front end surfaces of the four stabilizing sleeves are each threaded with fixing bolts.

[0011] Furthermore, bottom pads are fixedly provided at the front and rear positions on both sides of the lower end surface of the lower box, and a long pad is fixedly provided at the front position of the upper end surface of the upper box.

[0012] Furthermore, fixed connecting parts are fixedly provided on both sides of the upper end surface of the adjustment plate, the lower sides of the two folding steel frames are respectively fixed on the inner walls of the two fixed connecting parts, and the two clamping columns are respectively clamped on the inner walls of the two side grooves.

[0013] Furthermore, inner grooves are provided on both sides of the upper end surface of the adjustment plate, the two folding rods are slidably arranged on the inner walls of the two inner grooves, and the two push springs are fixedly arranged on the inner walls on the opposite sides of the two inner grooves.

[0014] The utility model has the following beneficial effects:

[0015] 1. The utility model proposes a teaching device that is easy to carry. The teaching board of the teaching device is set on a folding steel frame. The folding steel frame can be vertically folded and completely stored in the lower box. The teaching board consists of a main board, a first extension board, a second extension board and a sub-board. The first extension board and the second extension board can be folded at the end face of the main board, and the sub-board can be folded at the end face of the first extension board, so that the teaching equipment can be completely stored between the lower box and the upper box. The teaching equipment stored between the two boxes is more convenient to carry.

[0016] 2. The utility model proposes a portable teaching device. When using the teaching device, the slider can be slid to drive the two sides of the folding rod box inside the adjustment plate to slide, and then the adjustment plate between the side plates is slid to the middle position of the lower box. At this time, the spring pushes the folding rod to clamp the side groove of the clamping column, so that the teaching board is more stable when erected. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is an axonometric diagram of the storage of the present invention;

[0018] Figure 2 It is a schematic diagram of the expansion of the utility model;

[0019] Figure 3 This is an enlarged schematic diagram of the convex portion A of the present invention;

[0020] Figure 4 A rear view schematic diagram showing the present invention;

[0021] Figure 5 It is a front cross-sectional schematic diagram of the lower box of the present utility model.

[0022] Legend:

[0023] 1. Bottom pad; 2. Lower box; 3. Upper box; 4. Long pad; 5. Adjustment mechanism; 6. Side groove; 7. Reinforced steel frame; 8. Stabilizing sleeve; 9. Folding steel frame; 10. First extension plate; 11. Sub-plate; 12. Main plate; 13. Second extension plate; 14. First lower shell; 15. First vertical plate; 16. First upper shell; 17. Side rod; 18. Second vertical plate; 19. Second upper shell; 20. Second lower shell; 21. Mounting slot; 22. Fixing bolt; 501. Adjustment plate; 502. Slide plate; 503. Fixed connector; 504. Inner groove; 505. Folding rod; 506. Clamping column; 507. Push spring. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] Reference Figure 1 、 Figure 2 、 Figure 3 、 Figure 4The utility model provides an embodiment of a portable teaching device, comprising a lower box 2, two folding steel frames 9, three reinforcing steel frames 7 and a main board 12, an upper box 3 is hingedly provided at the upper side of the rear end surface of the lower box 2, side grooves 6 are provided on both sides of the inner bottom surface of the lower box 2, an adjustment mechanism 5 is slidingly provided between the two side grooves 6, a second extension plate 13 is hingedly provided at the upper side of the front end surface of the main board 12, a first extension plate 10 is hingedly provided at both sides of the rear end surface of the main board 12, a sub-plate 11 is hingedly provided at the front side positions of the upper end surfaces of the two first extension plates 10, two stabilizing sleeves 8 are slidingly provided on the outer end surfaces of the two folding steel frames 9, a first upper shell 16 is fixedly provided at the lower side positions of the rear end surfaces of the two sub-plates 11, and a second upper shell 19 is fixedly provided at the lower side position of the rear end surface of the second extension plate 13;

[0026] The upper side positions of the rear end surfaces of the two first extension plates 10 are fixedly provided with a first lower shell 14, the inner walls of the two first upper shells 16 are slidably provided with a first vertical plate 15, and the two first vertical plates 15 are respectively slidably provided on the inner walls of the two first lower shells 14. The upper side position of the rear end surface of the main board 12 is fixedly provided with a second lower shell 20, and the inner wall of the second upper shell 19 is slidably provided with a second vertical plate 18. The second vertical plate 18 is slidably provided on the inner wall of the second lower shell 20. The upper side positions of the inner walls on both sides of the second upper shell 19 are slidably provided with side rods 17, and the two side rods 17 are respectively slidably provided on the upper inner walls of the two first upper shells 16. Wall, two folding steel frames 9 are fixed on the lower side of the main board 12 by bolts respectively, three mounting grooves 21 are opened on the front end faces of the two folding steel frames 9, three reinforcing steel frames 7 are slidably arranged on the inner walls of the six mounting grooves 21, and the inner walls of the front end faces of the four stabilizing sleeves 8 are threaded with fixing bolts 22. The front and rear positions on both sides of the lower end face of the lower box 2 are fixed with bottom pads 1, and the front position of the upper end face of the upper box 3 is fixed with long pads 4. The lower sides of the two folding steel frames 9 are respectively fixed on the inner walls of the two fixed connectors 503, and the two clamping columns 506 are respectively clamped on the inner walls of the two side grooves 6.

[0027] Specifically, when using the teaching equipment, open the upper box 3 and take out the main board 12 and put it into the upper box 3 first. The main board 12 will drive the folding steel frame 9 to straighten, and then the folding steel frame 9 is erected on the inner wall of the fixed connection piece 503 and fixed by tightening the bolts. The erected and fixed folding steel frame 9 supports the upper side, and the segmented rod of the folding steel frame 9 is turned over, and the stabilizing sleeve 8 is slid into the connection of the folding steel frame 9 and fixed by the fixing bolts 22, so that the folding steel frame 9 is completely erected, and then the main board 12 is turned over and the main board 12 is fixed vertically by tightening the bolts, and then the reinforcing steel frame 7 is slid into between the folding steel frames 9 through the mounting slot 21, so that the strength between the steel frames is stronger. High, flip the first extension plate 10 to both sides, the first extension plate 10 will block the bolts connecting the main board 12 and the folding steel frame 9, and then flip the second extension plate 13 and the sub-plate 11 upwards, the first vertical plate 15 and the second vertical plate 18 on the inner wall of the first upper shell 16 and the second upper shell 19 slide down under the influence of weight into the first lower shell 14 and the second lower shell 20, and then pull the side rod 17 to slide into the first upper shell 16 to form a fixed position, so that the teaching range is expanded and teaching is more convenient. Although a long pad 4 is provided on the top of the upper box 3, the connection between the upper box 3 and the lower box 2 is hinged. If the weight is at the rear, it is easy to cause the upper box 3 and the lower box 2 to fold.

[0028] Reference Figure 4 、 Figure 5 The adjustment mechanism 5 includes an adjustment plate 501 and two folding rods 505. The end surfaces of the opposite sides of the lower sides of the two folding rods 505 are fixedly provided with a clamping column 506. The end surfaces of the opposite sides of the two folding rods 505 are fixedly provided with a push spring 507. The upper end surfaces of the two folding rods 505 are fixedly provided with a slide plate 502. Inner grooves 504 are provided on both sides of the upper end surface of the adjustment plate 501. The two folding rods 505 are respectively slidably arranged on the inner walls of the two inner grooves 504. The two push springs 507 are respectively fixed on the inner walls of the opposite sides of the two inner grooves 504. Fixed connecting members 503 are fixedly provided on both sides of the upper end surface of the adjustment plate 501.

[0029] Specifically, the folding steel frame 9 is erected on the adjustment mechanism 5. By sliding the slide plate 502 to both sides, the folding rod 505 drives the clamping column 506 to slide to both sides to release the clamping inside the opposite side groove 6, and the adjustment plate 501 is slid to the middle position of the side groove 6. The slide plate 502 is released to push the spring 507 to push the folding rod 505 to allow the clamping column 506 to clamp the opposite side groove 6, thereby fixing the adjustment mechanism 5 to prevent it from sliding on its own.

[0030] Working principle: When using the teaching equipment, open the upper box 3 and take out the main board 12 to straighten the folding steel frame 9, then stand up the inner wall of the folding steel frame 9 fixing connector 503 and fix it by tightening the bolts, then flip the segmented rod of the folding steel frame 9, and then slide the stabilizing sleeve 8 into the connection of the folding steel frame 9, fix the stabilizing sleeve 8 by fixing the bolts 22, then flip up the main board 12 and fix the vertical main board 12 by tightening the bolts, flip the first extension plate 10 to both sides, and then flip up the second extension plate 13 and the sub-plate 11, the first vertical plate 15 and the second vertical plate 18 of the inner wall of the first upper shell 16 and the second upper shell 19 slide down under the influence of weight into the first lower shell 14 and the second lower shell 20, and then pull the side rod 17 to slide into the first upper shell 16 to be fixed;

[0031] Secondly, you can squat down and slide the slide plate 502 to drive the folding rod 505 to slide to both sides to let the clamping column 506 loosen the fixation of the adjustment mechanism 5, so that the adjustment mechanism 5 can slide inside the side groove 6 to adjust the upright position of the main board 12. A round hole is opened inside the side groove 6. Loosen the slide plate 502 to push the spring 507 to pull the folding rod 505, so that the clamping column 506 clamps the adjustment mechanism 5. A bottom pad 1 is provided under the lower box 2, so that the middle position of the lower box 2 is very stable.

[0032] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A portable teaching device comprising a lower box (2), two folding steel frames (9), three reinforcing steel frames (7) and a main board (12), characterized in that: The upper box (3) is hingedly provided at the upper side position of the rear end surface of the lower box (2), and side grooves (6) are provided on both sides of the inner bottom surface of the lower box (2), and an adjustment mechanism (5) is slidably provided between the two side grooves (6). The second extension plate (13) is hingedly provided at the upper side position of the front end surface of the main board (12), and the first extension plate (10) is hingedly provided at both sides of the rear end surface of the main board (12), and the front side positions of the upper end surfaces of the two first extension plates (10) are hingedly provided with auxiliary plates (11), and the outer end surfaces of the two folding steel frames (9) are slidably provided with two stabilizing sleeves (8), and the lower side positions of the rear end surfaces of the two auxiliary plates (11) are fixedly provided with a first upper shell (16), and the lower side position of the rear end surface of the second extension plate (13) is fixedly provided with a second upper shell (19); The adjustment mechanism (5) comprises an adjustment plate (501) and two folding rods (505), wherein the opposite end surfaces on the lower sides of the two folding rods (505) are fixedly provided with a clamping column (506), the opposite end surfaces on the two folding rods (505) are fixedly provided with a pushing spring (507), and the upper end surfaces of the two folding rods (505) are fixedly provided with a sliding plate (502).

2. The portable teaching device according to claim 1, characterized in that: A first lower shell (14) is fixedly provided on the upper side of the rear end surface of the two first extension plates (10), a first vertical plate (15) is slidably provided on the inner walls of the two first upper shells (16), and the two first vertical plates (15) are respectively slidably provided on the inner walls of the two first lower shells (14).

3. The portable teaching device according to claim 1, characterized in that: A second lower shell (20) is fixedly provided on the upper side of the rear end surface of the main board (12), a second vertical plate (18) is slidably provided on the inner wall of the second upper shell (19), and the second vertical plate (18) is slidably provided on the inner wall of the second lower shell (20).

4. The portable teaching device according to claim 1, characterized in that: Side rods (17) are slidably provided on the upper side positions of the inner walls on both sides of the second upper shell (19), and the two side rods (17) are slidably provided on the upper inner walls of the two first upper shells (16), respectively. The two folding steel frames (9) are respectively fixed on the lower side of the main board (12) by bolts.

5. The portable teaching device according to claim 1, characterized in that: The front end surfaces of the two folding steel frames (9) are each provided with three mounting grooves (21), the three reinforcing steel frames (7) are respectively slidably arranged on the inner walls of the six mounting grooves (21), and the inner walls of the front end surfaces of the four stabilizing sleeves (8) are each threadedly provided with fixing bolts (22).

6. The portable teaching device according to claim 1, characterized in that: Bottom pads (1) are fixedly provided at the front and rear positions on both sides of the lower end surface of the lower box (2), and a long pad (4) is fixedly provided at the front position of the upper end surface of the upper box (3).

7. The portable teaching device according to claim 1, characterized in that: Fixed connecting pieces (503) are fixedly provided on both sides of the upper end surface of the adjustment plate (501), the lower sides of the two folding steel frames (9) are fixedly provided on the inner walls of the two fixed connecting pieces (503), and the two clamping columns (506) are clamped on the inner walls of the two side grooves (6).

8. The portable teaching device according to claim 1, characterized in that: Inner grooves (504) are provided on both sides of the upper end surface of the adjustment plate (501), the two folding rods (505) are respectively slidably arranged on the inner walls of the two inner grooves (504), and the two pushing springs (507) are respectively fixedly arranged on the inner walls on the opposite sides of the two inner grooves (504).

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