Novel interactive multimedia teaching equipment

Abstract

A novel interactive multimedia teaching device disclosed by the present invention comprises a placement base and a teaching projection device, the teaching projection device is placed on the placement base, a U-shaped connecting frame is fixedly connected to the placement base, limiting sliding grooves are symmetrically formed in the front and back of the U-shaped connecting frame, and limiting sliding blocks are slidably installed in the limiting sliding grooves. A first threaded sleeve block is installed in the limiting sliding block in an embedded mode, an extrusion screw rod is installed in the first threaded sleeve block in a threaded mode, a telescopic connecting rod is fixedly connected to the upper face of the U-shaped connecting frame, and a rotating disc is fixedly connected to the upper end of the telescopic connecting rod. Teaching projection equipment is placed on the placing base, the extruding screw rod drives the rubber pad to move downwards to extrude the teaching projection equipment, the teaching projection equipment can be pressed and fixed on the placing base, and teaching projection equipment of different models can be fixed by adopting an extruding and fixing mode; and the teaching projection equipment can be conveniently updated in the later period.

Description

Technical Field

[0001] The present invention relates to a teaching device, and more particularly to a new type of interactive multimedia teaching device. Background Art

[0002] Multimedia teaching is a teaching method that has emerged in recent years. It refers to the process of teaching, according to the characteristics of teaching objectives and teaching objects, through teaching design, reasonably selecting and applying modern teaching media, and organically combining them with traditional teaching means to jointly participate in the whole process of teaching. The audience of multimedia teaching is extensive. Multimedia teaching can form a reasonable teaching process structure and achieve the optimal teaching effect, with excellent application results. When conducting multimedia teaching, multimedia teaching equipment needs to be applied.

[0003] For example, a new type of interactive multimedia teaching device with the publication number of CN117053073B disclosed in the Chinese patent includes a mounting top plate. A universal joint is provided on the bottom surface of the mounting top plate. A guide ball is movably installed inside the universal joint. One end of the guide ball is fixedly installed with a telescopic shaft. The bottom end of the telescopic shaft is fixedly installed with a mounting shell. An internal slide rail is horizontally fixedly installed inside the mounting shell. A teaching projector is slidably installed outside the internal slide rail. In the present invention, through the matching setting of a control component, with this design, when a situation such as a picture imbalance occurs during teaching, the horizontal and spatial positions of the teaching projector can be quickly adjusted, so that the teaching picture can be quickly adjusted to a suitable position, the adjustment is convenient and fast, time-saving and labor-saving, effectively solving the problem that it is not easy to operate because the equipment is installed at a high place and it is difficult to correct the teaching picture in a short time, and improving the actual application effect of the equipment. However, this patent has the following problems:

[0004] First, the telescopic shaft is rotatably connected to the top plate through a universal joint. Due to the suspension method, the suspended projection device below is extremely prone to vibration, resulting in continuous shaking of the projected picture.

[0005] Second, a special connection mechanism is used to connect with the teaching projector, resulting in the problem that when updating common and mature teaching projection equipment on the market later, it cannot be directly connected and matched with the suspension mechanism. Summary of the Invention

[0006] The purpose of the present invention is to provide a new type of interactive multimedia teaching device to solve the existing problems mentioned in the above background art.

[0007] To achieve the above object, the present invention provides the following technical solution: A novel interactive multimedia teaching device, including a placement base and a teaching projection device, the teaching projection device is placed on the placement base, a U-shaped connecting frame is fixedly connected to the placement base, limiting sliding grooves are symmetrically opened in the front and rear of the U-shaped connecting frame, limiting sliders are slidably installed in the limiting sliding grooves, a first threaded sleeve block is embedded in the limiting sliders, an extrusion screw is threadedly installed in the first threaded sleeve block, a telescopic connecting rod is fixedly connected to the U-shaped connecting frame, a rotating disk is fixedly connected to the upper end of the telescopic connecting rod, a height adjusting rod is fixedly connected to the U-shaped connecting frame and on one side of the telescopic connecting rod, the upper end of the height adjusting rod is rotatably connected to the rotating disk, a connecting ball head is fixedly connected to the rotating disk, a ball cage is rotatably sleeved on the connecting ball head, and a fixed foot is fixedly connected to the upper end of the ball cage.

[0008] Preferably, a rubber pad is fixedly connected to the lower end of the extrusion screw, and a knob is fixedly connected to the upper end of the extrusion screw.

[0009] Preferably, a motor bracket is fixedly connected to one side of the rotating disk, and an adjusting motor is fixedly connected to the other end of the motor bracket.

[0010] Preferably, a driving gear is fixedly connected to the output end of the adjusting motor.

[0011] Preferably, the height adjusting rod includes a threaded rod and a threaded sleeve, and the threaded rod is threadedly installed in the threaded sleeve.

[0012] Preferably, the lower end of the threaded rod is fixedly connected to the U-shaped connecting frame, and the upper end of the threaded sleeve is rotatably connected to the rotating disk.

[0013] Preferably, a driven gear is fixedly connected to the position of the threaded rod near the upper end, and the driven gear meshes with the driving gear.

[0014] Preferably, a plurality of through holes are opened in the rotating disk.

[0015] Preferably, a second threaded sleeve block is embedded in one side of the ball cage, and a fixing bolt is rotatably installed in the second threaded sleeve block.

[0016] Preferably, a rubber anti-slip head is fixedly connected to the end of the fixing bolt, and the rubber anti-slip head cooperates with the connecting ball head.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. By placing the teaching projection device on the placement base and using the extrusion screw to drive the rubber pad to move downwards to press the teaching projection device, the teaching projection device can be pressed and fixed on the placement base. By adopting the extrusion fixation method, teaching projection devices of different models can be fixed, which is convenient for later replacement and upgrading of the teaching projection device.

[0019] 2. It is slidably installed inside the limit chute through a limit slider, and the position of the limit slider can be adjusted left and right, thereby driving the extrusion screw to move and adjusting the contact position between the extrusion screw and the upper part of the teaching projection device, avoiding interference between the extrusion screw and the components on the teaching projection device.

[0020] 3. Rotating the second threaded sleeve block can drive the rubber anti-slip head at the end to move, so that the rubber anti-slip head presses and fits the surface of the connecting ball head, thereby restricting the rotation of the connecting ball head inside the ball cage and relatively fixing the rotating disc, avoiding the phenomenon of continuous shaking during the use of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 is a schematic diagram of the overall structure of the other side of the present invention;

[0023] Figure 3 is a cross-sectional view of the present invention;

[0024] Figure 4 is the Figure 3 enlarged view of part A in the present invention;

[0025] Figure 5 is a partial exploded view of the present invention.

[0026] In the figure: 1. Placing base; 101. U-shaped connecting frame; 102. Limit chute; 2. Limit slider; 201. First threaded sleeve block; 202. Extrusion screw; 203. Rubber pad; 204. Knob; 3. Rotating disc; 301. Telescopic connecting rod; 302. Motor bracket; 303. Adjusting motor; 304. Driving gear; 305. Connecting ball head; 4. Height adjusting rod; 401. Threaded rod; 402. Threaded sleeve; 403. Driven gear; 5. Fixed foot; 501. Ball cage; 502. Second threaded sleeve block; 503. Fixed bolt; 9. Teaching projection device. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] 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 of 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.

[0028] As Figures 1-5 shown, the present invention has the following specific embodiments.

[0029] Embodiment 1

[0030] A new type of interactive multimedia teaching device includes a placement base 1 and a teaching projection device 9. The teaching projection device 9 is placed on the placement base 1. A U-shaped connecting frame 101 is fixedly connected to the placement base 1. Limiting sliding grooves 102 are symmetrically opened in the front and rear of the U-shaped connecting frame 101. Limiting sliding blocks 2 are slidably installed in the limiting sliding grooves 102. A first threaded sleeve block 201 is embedded in the limiting sliding block 2. An extrusion screw rod 202 is threadedly installed in the first threaded sleeve block 201. A telescopic connecting rod 301 is fixedly connected to the upper surface of the U-shaped connecting frame 101. The upper end of the telescopic connecting rod 301 is fixedly connected to a rotating disk 3. A height adjusting rod member 4 is fixedly connected to the upper surface of the U-shaped connecting frame 101 and on one side of the telescopic connecting rod 301. The upper end of the height adjusting rod member 4 is rotatably connected to the rotating disk 3. A connecting ball head 305 is fixedly connected to the rotating disk 3. A ball cage 501 is rotatably sleeved on the connecting ball head 305. The upper end of the ball cage 501 is fixedly connected to a fixed foot 5.

[0031] In this implementation scheme, by placing the teaching projection device 9 on the placement base 1, then rotating the extrusion screw rod 202 so that its lower end contacts the upper surface of the teaching projection device 9, and then using the extrusion screw rod 202 to squeeze and fix the teaching projection device 9 on the placement base 1. At the same time, the limiting sliding block 2 is slidably installed inside the limiting sliding groove 102, and the position of the limiting sliding block 2 can be adjusted left and right, thereby driving the extrusion screw rod 202 to move and adjusting the contact position between the extrusion screw rod 202 and the upper surface of the teaching projection device 9, avoiding interference between the extrusion screw rod 202 and the control components on the upper surface of the teaching projection device 9. By adopting the extrusion fixation method, teaching projection devices 9 of different models can be clamped and fixed, which is convenient for later replacement with new teaching projection devices 9. It can be directly matched with the hanging rack. The fixed foot 5 can cooperate with bolts to fix the rotating disk 3 on the roof. The height adjusting rod member 4 can adjust its length, and cooperating with the telescopic connecting rod 301 can adjust the height of the placement base 1.

[0032] Embodiment 2

[0033] A rubber pad 203 is fixedly connected to the lower end of the extrusion screw rod 202. A knob 204 is fixedly connected to the upper end of the extrusion screw rod 202. A motor bracket 302 is fixedly connected to one side of the rotating disk 3. The other end of the motor bracket 302 is fixedly connected to an adjusting motor 303. The output end of the adjusting motor 303 is fixedly connected to a driving gear 304. The height adjusting rod member 4 includes a threaded rod 401 and a threaded sleeve 402. The threaded rod 401 is threadedly installed in the threaded sleeve 402. The lower end of the threaded rod 401 is fixedly connected to the U-shaped connecting frame 101. The upper end of the threaded sleeve 402 is rotatably connected to the rotating disk 3. A driven gear 403 is fixedly connected to the position of the threaded rod 401 near the upper end. The driven gear 403 meshes with the driving gear 304.

[0034] In this implementation scheme, by contacting the upper surface of the teaching projection device 9 with the rubber pad 203, it is avoided that the rubber pad 203 scratches and damages the upper surface of the teaching projection device 9. The knob 204 facilitates directly rotating and extruding the screw rod 202. Starting the adjustment motor 303 can drive the driving gear 304 to rotate. The driving gear 304 and the driven gear 403 are meshed with each other. Further, the rotation of the driving gear 304 can drive the driven gear 403 to rotate. The driven gear 403 is fixed on the threaded rod 401. Further, the rotation of the driven gear 403 can drive the threaded rod 401 to rotate. The threaded rod 401 is threadedly installed inside the threaded sleeve 402. The rotation of the threaded rod 401 can adjust the overall length of the height adjustment rod member 4, and further adjust the height of the placement base 1.

[0035] Embodiment 3

[0036] A number of through holes are formed in the rotating disk 3. One side of the ball cage 501 is embedded and installed with a second threaded sleeve block 502. A fixing bolt 503 is rotatably installed inside the second threaded sleeve block 502. The end of the fixing bolt 503 is fixedly connected with a rubber anti-slip head, and the rubber anti-slip head cooperates with the connecting ball head 305.

[0037] In this implementation scheme, the overall weight of the rotating disk 3 can be reduced through the through holes formed in the rotating disk 3. During installation, since the whole device is suspended, the connecting ball head 305 is rotatably connected with the ball cage 501, which is convenient for adjusting the downward direction and angle of the placement base 1, so that the teaching projection device 9 can quickly align with the curtain. Rotating the second threaded sleeve block 502 can drive the rubber anti-slip head at the end to move, so that the rubber anti-slip head presses and fits the surface of the connecting ball head 305, and further restricts the rotation of the connecting ball head 305 inside the ball cage 501, relatively fixing the rotating disk 3, and avoiding the phenomenon of continuous shaking during the use of the device.

[0038] The working principle and usage process of the present invention: Before use, it is necessary to loosen the second threaded sleeve block 502 to release the restriction on the connecting ball head 305. At this time, the directions of the placement base 1 and the teaching projection device 9 can be adjusted arbitrarily, so that the irradiation direction of the teaching projection device 9 is aligned with the curtain. Subsequently, tighten the second threaded sleeve block 502. Starting the adjustment motor 303 can drive the threaded rod 401 to rotate, and further adjust the height of the placement base 1 and the irradiation height of the teaching projection device 9. Then, the multimedia teaching can be carried out by using the teaching projection device 9. When it is necessary to update and replace the teaching projection device 9, it is necessary to drive the extrusion screw rod 202 to rotate by using the knob 204 to release the extrusion on the teaching projection device 9, and then the teaching projection device 9 can be removed for replacement. Place the new teaching projection device 9 on the placement base 1, and continue to tighten the extrusion screw rod 202 to drive the rubber pad 203 to press the upper surface of the teaching projection device 9.

[0039] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art will appreciate that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A novel interactive multimedia teaching device, comprising a placement base (1) and a teaching projection device (9), wherein the teaching projection device (9) is placed on the placement base (1), and is characterized in that: A U-shaped connecting frame (101) is fixedly connected to the placement base (1), and a limiting sliding groove (102) is symmetrically provided on the front and rear of the U-shaped connecting frame (101). A limiting sliding block (2) is slidably installed in the limiting sliding groove (102), and a first threaded sleeve (201) is embedded and installed in the limiting sliding block (2), and an extrusion screw (202) is installed in the inner thread of the first threaded sleeve (201). A telescopic connecting rod (301) is fixedly connected to the U-shaped connecting frame (101). ), the upper end of the telescopic connecting rod (301) is fixedly connected to a rotating disk (3), a height adjustment rod (4) is fixedly connected to the upper end of the U-shaped connecting frame (101) and located on one side of the telescopic connecting rod (301), the upper end of the height adjustment rod (4) is rotatably connected to the rotating disk (3), a connecting ball head (305) is fixedly connected to the upper end of the rotating disk (3), a ball cage (501) is rotatably sleeved on the connecting ball head (305), and a fixed foot (5) is fixedly connected to the upper end of the ball cage (501).

2. A novel interactive multimedia teaching device according to claim 1, characterized in that: The lower end of the extrusion screw (202) is fixedly connected to a rubber pad (203), and the upper end of the extrusion screw (202) is fixedly connected to a knob (204).

3. A novel interactive multimedia teaching device according to claim 1, characterized in that: A motor bracket (302) is fixedly connected to one side of the rotating disk (3), and an adjusting motor (303) is fixedly connected to the other end of the motor bracket (302).

4. A novel interactive multimedia teaching device according to claim 3, characterized in that: The output end of the regulating motor (303) is fixedly connected with a driving gear (304).

5. A novel interactive multimedia teaching device according to claim 4, characterized in that: The height adjustment rod (4) comprises a threaded rod (401) and a threaded sleeve (402), wherein the threaded rod (401) is threadedly mounted in the threaded sleeve (402).

6. A novel interactive multimedia teaching device according to claim 5, characterized in that: The lower end of the threaded rod (401) is fixedly connected to the U-shaped connecting frame (101), and the upper end of the threaded sleeve (402) is rotatably connected to the rotating disk (3).

7. A novel interactive multimedia teaching device according to claim 5, characterized in that: A driven gear (403) is fixedly connected to a position near the upper end of the threaded rod (401), and the driven gear (403) and the driving gear (304) are meshed with each other.

8. A novel interactive multimedia teaching device according to claim 1, characterized in that: A plurality of through holes are provided in the rotating disk (3).

9. A novel interactive multimedia teaching device according to claim 1, characterized in that: A second threaded sleeve (502) is embedded and installed on one side of the ball cage (501), and a fixing bolt (503) is rotatably installed in the second threaded sleeve (502).

10. A novel interactive multimedia teaching device according to claim 9, characterized in that: A rubber anti-slip head is fixedly connected to the end of the fixing bolt (503), and the rubber anti-slip head cooperates with the connecting ball head (305).

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