CN210271275U

CN210271275U - Teaching device using computer multimedia

Info

Publication number: CN210271275U
Application number: CN201920562482.8U
Authority: CN
Inventors: 李林; 门涛; 李彬; 苏炳均
Original assignee: Leshan Normal University
Current assignee: Leshan Normal University
Priority date: 2019-04-23
Filing date: 2019-04-23
Publication date: 2020-04-07
Anticipated expiration: 2029-04-23

Abstract

The utility model belongs to the technical field of the multimedia teaching technique and specifically relates to an utilize computer multimedia's teaching device, the on-line screen storage device comprises a base, the upper end mid-mounting of base has electric telescopic handle, electric telescopic handle's upper end is connected with the connecting seat, the upper end middle part of connecting seat has seted up flutedly, the inside rotation of recess is connected with the bracing piece, the upper end of bracing piece is connected with the mounting bracket of U type, two rotate between the axis body and be connected with the projection board, just set up the rotation groove that uses with the axis body cooperation on the projection board, the axis body is close to the one end in rotation groove and has seted up square groove, one side upper portion intercommunication that the projection board was kept away from in square groove has logical groove, the lower extreme of. Compared with the prior art, the utility model has the advantages of reasonable design, it is convenient to use, has stronger practicality and functionality, facilitates the use more.

Description

Teaching device using computer multimedia

Technical Field

The utility model relates to a multimedia teaching technical field especially relates to an utilize computer multimedia's teaching device.

Background

The multimedia teaching is that in the teaching process, according to the characteristics of a teaching target and a teaching object, modern teaching media are reasonably selected and applied through teaching design, and are organically combined with the traditional teaching means to jointly participate in the whole teaching process, and various media information acts on students to form a reasonable teaching process structure so as to achieve the optimized teaching effect. In multimedia teaching, projection is an essential link.

The projection board that present common convenient removal is fixed the setting mostly, and its height can not adjust, and the projection board also can't rotate, produces the reflection of light easily when the student on classroom both sides watches, and the effect is relatively poor, can't carry out effectual study, has great use limitation. To this end, we propose a computer multimedia teaching device that can solve such problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art, and providing a teaching device utilizing computer multimedia, which is more convenient to use.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a teaching device utilizing computer multimedia is designed, comprising a base, wherein an electric telescopic rod is installed in the middle of the upper end of the base, a connecting seat is connected with the upper end of the electric telescopic rod, a groove is formed in the middle of the upper end of the connecting seat, a supporting rod is rotatably connected inside the groove, a U-shaped mounting rack is connected with the upper end of the supporting rod, shaft bodies are respectively and fixedly connected with the upper parts of the left side and the right side of the inner wall of the mounting rack, a projection plate is rotatably connected between the two shaft bodies, a rotating groove matched with the shaft bodies is formed in the projection plate, a square groove is formed in one end, close to the rotating groove, of the shaft body, a threaded rod is rotatably connected inside the square groove through a bearing, a limiting slide block is in threaded connection with the right side of the outer part of the, the upper part of one side of the square groove far away from the projection plate is communicated with a through groove, the inside of the through groove is rotatably connected with a rotating shaft through a bearing, and the lower end of the rotating shaft is connected with a second bevel gear meshed with the first bevel gear.

Preferably, the four corners of the lower end of the base are respectively provided with a roller wheel, and the roller wheels are self-locking universal wheels.

Preferably, the inner wall of the groove is equidistantly connected with an arc-shaped elastic part, and the outer surface of the arc-shaped elastic part is in contact with the supporting rod.

Preferably, the middle part of the upper end of the mounting rack is symmetrically connected with the placing boxes.

Preferably, the upper end of the rotating shaft is connected with a handle.

The utility model provides an utilize computer multimedia's teaching device, beneficial effect lies in: through control electric telescopic handle's flexible, can drive the projection board and reciprocate and carry out altitude mixture control, adapt to the teaching of co-altitude not, drive second bevel gear through the forward rotation pivot and rotate, can make first bevel gear and threaded rod forward rotation, drive the inside in limit slide withdrawal square groove, the projection board can the swing back and forth this moment, carry out angle modulation, avoid producing reflection of light phenomenon, improve student's viewing effect, adjust and accomplish the back, through the counter-rotation pivot, can drive limit slide and stretch into the inside in rotation groove, and with the inner wall extrusion contact in rotation groove, thereby can be fixed the projection board, and rotate the bracing piece through applying external force, can drive the projection board rotatory on the horizontal plane, make things convenient for the student of classroom both sides to watch more. Compared with the prior art, the utility model has the advantages of reasonable design, it is convenient to use, has stronger practicality and functionality, facilitates the use more.

Drawings

Fig. 1 is a schematic structural view of a teaching device using computer multimedia according to the present invention;

fig. 2 is an enlarged schematic view of a structure of a part a of a teaching device using computer multimedia according to the present invention;

fig. 3 is a top view of a partial structure in a teaching device using computer multimedia.

In the figure: base 1, electric telescopic handle 2, connecting seat 3, recess 4, bracing piece 5, mounting bracket 6, axis body 7, projection board 8, rotation groove 9, square groove 10, threaded rod 11, spacing slider 12, first bevel gear 13, lead to groove 14, pivot 15, second bevel gear 16, handle 17, gyro wheel 18, arc elastic component 19, place box 20.

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.

Referring to fig. 1-3, a teaching device using computer multimedia comprises a base 1, wherein four corners of the lower end of the base 1 are respectively provided with a roller 18, the rollers 18 are self-locking universal wheels, the self-locking universal wheels can be conveniently moved by the aid of the four rollers 18, and the self-locking universal wheels can be self-locked, so that stability of the device in use is guaranteed, and sliding phenomenon cannot occur.

Base 1's upper end mid-mounting has electric telescopic handle 2, electric telescopic handle 2's upper end is connected with connecting seat 3, recess 4 has been seted up at the upper end middle part of connecting seat 3, recess 4's inside rotation is connected with bracing piece 5, the equidistance is connected with arc elastic component 19 on recess 4's the inner wall, and arc elastic component 19's surface contacts with bracing piece 5, the elasticity extrusion bracing piece 5 of arc elastic component 19, can carry out limiting displacement to bracing piece 5, only exert external force and just can rotate bracing piece 5, can avoid 5 free rotations of bracing piece.

The upper end of bracing piece 5 is connected with the mounting bracket 6 of U type, and the upper end middle part symmetric connection of mounting bracket 6 has places box 20, places box 20 and can be used for placing instruments such as pen, remote controller, avoids the instrument to lose, conveniently seeks the use.

The upper parts of the left side and the right side of the inner wall of the mounting frame 6 are respectively fixedly connected with shaft bodies 7, a projection plate 8 is rotatably connected between the two shaft bodies 7, a rotating groove 9 matched with the shaft bodies 7 for use is formed in the projection plate 8, a square groove 10 is formed in one end, close to the rotating groove 9, of each shaft body 7, a threaded rod 11 is rotatably connected inside each square groove 10 through a bearing, a limiting slider 12 is in threaded connection with the outer right side of each threaded rod 11, the limiting slider 12 is matched with the square groove 10, a first bevel gear 13 is fixedly sleeved on the outer left side of each threaded rod 11, a through groove 14 is communicated with the upper part, far away from the projection plate 8, of each square groove 10, a rotating shaft 15 is rotatably connected inside each through a bearing, the lower end of the rotating shaft 15 is connected with a second bevel gear 16 meshed with the first bevel gear 13, the using effect of the device is further improved.

The working principle is as follows: during the use, through the flexible of control electric telescopic handle 2, can drive projection board 8 and reciprocate and carry out altitude mixture control, adapt to the teaching of co-altitude not, drive second bevel gear 16 through forward rotation pivot 15 and rotate, can make first bevel gear 13 and threaded rod 11 forward rotation, drive the inside of spacing slider 12 withdrawal square groove 10, projection board 8 can the swing back and forth this moment, carry out angle modulation, avoid producing reflection of light phenomenon, improve student's viewing effect, after the regulation is accomplished, through reverse rotation pivot 15, can drive spacing slider 12 and stretch into the inside of rotating groove 9, and with the inner wall extrusion contact of rotating groove 9, thereby can be fixed projection board 8, and rotate bracing piece 5 through exerting external force, can drive projection board 8 and rotate on the horizontal plane, make things convenient for the student of classroom both sides to watch more.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The teaching device utilizing the computer multimedia comprises a base (1) and is characterized in that an electric telescopic rod (2) is installed in the middle of the upper end of the base (1), a connecting seat (3) is connected to the upper end of the electric telescopic rod (2), a groove (4) is formed in the middle of the upper end of the connecting seat (3), a supporting rod (5) is rotatably connected to the inside of the groove (4), a U-shaped mounting frame (6) is connected to the upper end of the supporting rod (5), shaft bodies (7) are respectively and fixedly connected to the upper portions of the left side and the right side of the inner wall of the mounting frame (6), a projection plate (8) is rotatably connected between the two shaft bodies (7), a rotating groove (9) matched with the shaft bodies (7) for use is formed in the projection plate (8), a square groove (10) is formed in one end, close, the inside of square groove (10) is rotated through the bearing and is connected with threaded rod (11), the outside right side threaded connection of threaded rod (11) has limiting slide block (12), just limiting slide block (12) and square groove (10) looks adaptation, the fixed cover in outside left side of threaded rod (11) has first bevel gear (13), one side upper portion intercommunication that projection board (8) were kept away from in square groove (10) has logical groove (14), the inside that leads to groove (14) is rotated through the bearing and is connected with pivot (15), the lower extreme of pivot (15) is connected with second bevel gear (16) with first bevel gear (13) engaged with.

2. The teaching device using computer multimedia as claimed in claim 1, wherein rollers (18) are respectively installed at four corners of the lower end of the base (1), and the rollers (18) are self-locking universal wheels.

3. The teaching apparatus using computer multimedia as claimed in claim 1, wherein the inner wall of said groove (4) is connected with arc-shaped elastic members (19) at equal intervals, and the outer surface of said arc-shaped elastic members (19) is in contact with the supporting bar (5).

4. The teaching apparatus using computer multimedia as claimed in claim 1, wherein the middle of the upper end of the mounting frame (6) is symmetrically connected with a placing box (20).

5. The computer-based multimedia teaching apparatus according to claim 1, wherein a handle (17) is connected to the upper end of the rotary shaft (15).