Teaching device

Abstract

The utility model relates to a teaching device which comprises a fixing plate, a folding box is fixed to the bottom end of the fixing plate through bolts, a lower sliding groove is formed in the top end of the folding box, stabilizing grooves are formed in the two ends of the inner side of the folding box, a blackboard is slidably embedded into the inner side of the lower sliding groove, and a limiting groove is formed in the outer side of one end of the folding box in a penetrating mode. A sliding rod is welded to the outer side of one end of the blackboard body, the outer side of the sliding rod is sleeved with a height limiting stopper, and a guide roller is fixed to the outer side of one end of the blackboard body through a bolt. Compared with the prior art, the display screen has the advantages that writing of a teacher can be smoother, watching of side students is not delayed, butt joint of the display screen and external equipment can be facilitated, and the effect of being more convenient to butt joint with the external equipment is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of teaching aids, and in particular to a teaching device. Background Art

[0002] Among traditional teaching aids, blackboard and display screen have become the most standard combination, which can realize the intervention of multimedia without delaying normal teaching. The display screen can be used to teach students reaction processes or phenomena that are difficult to understand verbally in class. Such a combination can improve the quality of teaching and students' learning interest.

[0003] Compared with the existing teaching devices in actual use, one combination of a blackboard and a display is to install the display screen horizontally inside the blackboard, and realize the function switching of the two by setting the blackboard into a horizontal pull-type splicing assembly structure. However, since the external interfaces of the display screen are on both sides of the display screen, this switching method will make the two sides of the display screen appear closed to the outside world. When it is necessary to connect the external equipment with the display screen, the outer shell of the blackboard needs to be removed, which is very inconvenient.

[0004] Therefore, in order to solve the above problems, the present application provides a teaching device.

[0005] The above information disclosed in the background technology is only used to increase the understanding of the background technology of the present application, and therefore, it may include information that does not constitute the prior art known to ordinary technicians in the field. Utility Model Content

[0006] In order to solve the problem of external difficulties of the display screen, the present application provides a teaching device.

[0007] A teaching device provided by the present application includes a fixed plate, a folding box is fixed to the bottom end of the fixed plate by bolts, a sliding groove is provided at the top of the folding box, stabilizing grooves are provided at both ends of the inner side of the folding box, a blackboard is slidably embedded in the inner side of the sliding groove, a limiting groove is provided through the outer side of one end of the folding box, a sliding rod is welded to the outer side of one end of the blackboard, a height limiter is sleeved on the outer side of the sliding rod, and a guide roller is fixed to the outer side of one end of the blackboard by bolts.

[0008] Preferably, one end of the sliding rod penetrates and is slidably embedded in the inner side of the limiting groove, the height limiter is a bolt limiter, and the height limiter is outside the folding box.

[0009] Preferably, two drag-reducing grooves are provided on the outer side of one end of the fixed plate, and drag-reducing pulleys are fixed at the four corners of the outer side of one end of the blackboard by bolts.

[0010] Preferably, the drag reduction pulley is slidably embedded in the inner side of the drag reduction slide groove.

[0011] Preferably, a dust baffle is embedded on the top of the blackboard via a rotating shaft, and a return spring is sleeved on the outer side of the rotating shaft of the dust baffle.

[0012] Preferably, a display screen is fixed to the outer side of one end of the fixing plate on the inner side of the blackboard by means of bolts, and the width of the display screen is smaller than the width of the dust shield.

[0013] In summary, this application includes the following beneficial technical effects:

[0014] 1. By changing the horizontal switching structure of the blackboard and the display screen to vertical switching, this can not only preserve the overall integrity of the blackboard, but also make the teacher's writing smoother and not delay the viewing of sideways students. It can also facilitate the connection between the display screen and external devices. Compared with the existing technology, it has the effect of more convenient connection with external devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the fixing plate installation structure in the first embodiment of the present application;

[0016] Figure 2 This is a schematic diagram of the display screen installation structure in Example 1 of the present application;

[0017] Figure 3 It is a schematic diagram of the installation structure of the drag reduction pulley in Example 1 of the present application.

[0018] Explanation of the accompanying drawings: 1. Fixed plate; 2. Folding box; 3. Lower slide groove; 4. Stabilizing groove; 5. Blackboard; 6. Limiting groove; 7. Sliding rod; 8. Height limiter; 9. Guide roller; 10. Drag reduction slide groove; 11. Drag reduction pulley; 12. Dust baffle; 13. Reset spring; 14. Display screen. DETAILED DESCRIPTION

[0019] The following is combined with Figure 1-Figure 3 This application is described in further detail.

[0020] Embodiment 1

[0021] Reference Figure 1-Figure 3A teaching device comprises a fixed plate 1, a folding box 2 is fixed to the bottom end of the fixed plate 1 by bolts, a sliding groove 3 is provided at the top of the folding box 2, and stable grooves 4 are provided at both ends of the inner side of the folding box 2. A blackboard 5 is slidably embedded in the inner side of the sliding groove 3. In order to fold the blackboard 5 so that the display screen 14 can be better displayed, a limiting groove 6 is penetrated through the outer side of one end of the folding box 2, a sliding rod 7 is welded to the outer side of one end of the blackboard 5, and a height limiter 8 is sleeved on the outer side of the sliding rod 7. A guide roller 9 is fixed to the outer side of one end of the blackboard 5 by bolts. In order to ensure that the sliding process is more stable, one end of the sliding rod 7 penetrates and is slidably embedded in the limiting groove On the inner side of the positioning groove 6, the height limiter 8 is a bolt limiter, and the height limiter 8 is on the outside of the folding box 2. In order to fix the height of the blackboard 5, two drag reduction grooves 10 are opened on the outside of one end of the fixed plate 1, and drag reduction pulleys 11 are fixed at the four corners of the outer side of one end of the blackboard 5 by bolts. The drag reduction pulley 11 is slidably embedded in the inner side of the drag reduction groove 10, and a dust baffle 12 is embedded on the top of the blackboard 5 through a rotating shaft. A reset spring 13 is sleeved on the outer side of the rotating shaft of the dust baffle 12. A display screen 14 is fixed to the inner side of the blackboard 5 by bolts on the outer side of one end of the fixed plate 1, and the width of the display screen 14 is smaller than the width of the dust baffle 12.

[0022] Working principle: first, when the blackboard 5 is at the top, the operator can write on the blackboard 5 without obstruction. The complete blackboard can make the typesetting of writing more convenient and more convenient for students to watch. When the display screen 14 is needed, the operator needs to loosen the height limiter 8 located on the outside of one end of the folding box 2. At that time, the height limiter 8 will lose the limit on the slide bar 7. At that time, the blackboard 5 will use its own gravity to slide toward the inside of the folding box 2 that folds itself. The blackboard 5 will slide into the inside of the folding box 2 through the lower slide groove 3 opened at the top of the folding box 2. At that time, the slide bar 7 welded at the bottom end of one side of the blackboard 5 will slide downward inside the limiting groove 6 opened through the outside of one end of the folding box 2, and the drag reducing pulley 11 fixed by bolts at the bottom end of the other side of the blackboard 5 will slide downward inside the stabilizing groove 4 opened at the inner end of the folding box 2.

[0023] In this way, both ends of the blackboard 5 can be in the same sliding position when the blackboard 5 slides down, preventing the blackboard 5 from being stuck in the folding box 2 when it slides down. At the same time, the dust baffle 12 installed at the top of the blackboard 5 by the return spring 13 during the sliding period will flip upwards due to touching the display screen 14 during the sliding period, and be held by the outer side of one end of the display screen 14 for limiting. And because the length of the dust baffle 12 is longer than the display screen 14, the dust baffle 12 will limit the highest point on the outer side of the display screen 14, which can prevent the blackboard 5 from getting stuck during the upward sliding process. The drag reduction pulley 11 installed on the outer side of one end of the blackboard 5 by bolts and fixed by bolts will slide inside the drag reduction slide groove 10 opened on the outer side of one end of the fixed plate 1, which can prevent the blackboard 5 from escaping from the limit of the fixed plate 1 and shaking when sliding. After the blackboard 5 is completely folded into the folding box 2, both sides of the display screen 14 will be completely exposed to the outside, which can facilitate the docking of external equipment. Such a design can make the combination of the display screen 14 and the blackboard 5 more practical and more fully displayed.

[0024] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A teaching device, comprising a fixing plate (1), characterized in that: A folding box (2) is fixed to the bottom end of the fixed plate (1) by bolts, a sliding groove (3) is provided at the top of the folding box (2), stabilizing grooves (4) are provided at both ends of the inner side of the folding box (2), a blackboard (5) is slidably embedded in the inner side of the sliding groove (3), a limiting groove (6) is provided through the outer side of one end of the folding box (2), a sliding rod (7) is welded to the outer side of one end of the blackboard (5), a height limiter (8) is sleeved on the outer side of the sliding rod (7), and a guide roller (9) is fixed to the outer side of one end of the blackboard (5) by bolts.

2. A teaching device according to claim 1, characterized in that: One end of the sliding rod (7) penetrates and is slidably embedded in the inner side of the limiting groove (6); the height limiter (8) is a bolt limiter, and the height limiter (8) is located outside the folding box (2).

3. A teaching device according to claim 1, characterized in that: Two drag-reducing slide grooves (10) are provided on the outer side of one end of the fixed plate (1), and drag-reducing pulleys (11) are fixed at the four corners of the outer side of one end of the black plate (5) by bolts.

4. A teaching device according to claim 3, characterized in that: The drag reduction pulley (11) is slidably embedded in the inner side of the drag reduction slide groove (10).

5. A teaching device according to claim 1, characterized in that: A dust shield (12) is embedded on the top of the blackboard (5) via a rotating shaft, and a return spring (13) is sleeved on the outer side of the rotating shaft of the dust shield (12).

6. A teaching device according to claim 5, characterized in that: A display screen (14) is fixed to the inner side of the blackboard (5) via bolts on the outer side of one end of the fixing plate (1), and the width of the display screen (14) is smaller than the width of the dust shield (12).

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