A teaching apparatus

Abstract

The present application relates to the technical field of preschool education, in particular to a teaching device, which comprises a fixed seat, a rotating seat and display cards, the display cards are slidingly installed on the top of the rotating seat, the bottom of the display cards is provided with a linear driving device, the inner side of the fixed seat is provided with a brush roller, the bottom of the brush roller is rotatably connected with the inner bottom of the fixed seat, the bottom of the brush roller is further provided with a rotary driving device, the rotary driving device drives the brush roller to rotate, when the rotating seat drives the display cards to rotate to the position of the brush roller and contact with the brush roller, the brush roller sweeps the surface of the display cards. The display cards are installed on the rotating seat which can rotate, when the rotating seat is rotated, the display cards which are retracted in the inside can automatically rise, so as to display the cards in the display cards, which has the effect of teaching.

Description

Technical Field

[0001] This invention belongs to the field of preschool education technology, and specifically relates to a teaching device. Background Technology

[0002] In preschool education, one solution to facilitate children's understanding is to use cards to display information. Cards containing various knowledge are placed in plastic boxes. However, due to teaching needs, there will be multiple different cards, so a lot of display cards need to be prepared. However, with too many display cards, it is inconvenient for teachers to quickly take them out and display them quickly. Summary of the Invention

[0003] The purpose of this invention is to provide a device that can quickly display different cards in order to solve the above-mentioned problems.

[0004] The present invention achieves the above objectives through the following technical solutions:

[0005] A teaching device includes a fixed base, a rotating base, and a display board. The display board is slidably mounted on the top of the rotating base. A linear drive device is provided at the bottom of the display board. A brush roller is provided on the inner side of the fixed base. The bottom of the brush roller is rotatably connected to the inner bottom of the fixed base. A rotary drive device is also installed at the bottom of the brush roller. The rotary drive device drives the brush roller to rotate. When the rotating base drives the display board to rotate to the position of the brush roller and contact the brush roller, the brush roller cleans the surface of the display board.

[0006] As a further optimization of the present invention, a storage groove is provided on the top of the rotating base, and the display board is slidably connected to the storage groove. When the display board is retracted into the storage groove, the top of the display board is flush with the top surface of the rotating base.

[0007] As a further optimization of the present invention, the rotary drive device is a motor, which drives the brush roller to rotate reciprocally.

[0008] As a further optimization of the present invention, a limiting groove is provided on the inner wall of the storage slot, a limiting block is connected to the bottom of the display board, the limiting block is slidably connected to the limiting groove, and a pull rope is connected to the top of the limiting block. When the pull rope is pulled upward under the drive of external force, it causes the limiting block and the display board to rise synchronously.

[0009] As a further optimization of the present invention, a connecting hole is provided inside the rotating seat, and a pull rope is passed through the connecting hole. One end of the connecting hole extends to the top of the limiting groove, and the other end extends to the outer wall of the rotating seat. An iron block is connected to one end of the pull rope near the outer wall of the rotating seat. A magnet is installed on the inner wall of the fixed seat. The iron block and the magnet attract each other, and the attraction between the magnet and the iron block is greater than the weight of the display board.

[0010] As a further optimization of the present invention, a scraping mechanism is also provided on the inner side of the fixed base. The scraping mechanism includes a sealing box, an elastic sheet is connected to the side of the sealing box near the rotating base, and a brush is connected to the side of the elastic sheet near the rotating base. The ends of the brush can contact and scrape the outer wall of the display board.

[0011] As a further optimization of the present invention, a sliding column is provided inside the sealed box, and a sliding hole is provided in the side wall of the fixed seat. The sliding column is slidably connected to the sliding hole. A first spring is also connected between the sliding column and the inner wall of the sliding hole. A push plate is connected to one end of the sliding column near the elastic sheet, and the push plate contacts the elastic sheet.

[0012] As a further optimization of the present invention, a residual gear is connected to the end of the brush roller, and an arc-shaped rack is provided on one side of the residual gear. The arc-shaped rack meshes with the residual gear, and the arc-shaped rack can move back and forth under the drive of the reciprocating device.

[0013] As a further optimization of the present invention, the two ends of the arc-shaped rack are provided with sliding openings, and the sliding openings are provided with limiting posts. The limiting posts are connected to the inner bottom of the fixed base, and a second spring is connected between the limiting posts and the inner wall of the sliding openings.

[0014] As a further optimization of the present invention, one end of the arc-shaped rack is connected to a protrusion, and a lever is provided on the outer wall of the rotating seat. One end of the lever is hinged to the rotating seat, and a third spring is also connected between one end of the lever and the rotating seat. The elastic force of the third spring is greater than that of the second spring. When the lever abuts against the protrusion and moves toward the other side of the protrusion, it can drive the lever and the arc-shaped rack to move synchronously.

[0015] The beneficial effects of this invention are as follows: This invention installs multiple display boards on a rotatable base, and when the base is rotated, the display boards that are retracted inside can automatically rise, thereby displaying the cards inside the display boards and achieving a teaching effect. Attached Figure Description

[0016] Figure 1 This is a perspective view of the present invention;

[0017] Figure 2 This is a top sectional view of the present invention;

[0018] Figure 3 This is a front sectional view of the present invention;

[0019] Figure 4 This is a structural diagram of the pull rope of the present invention;

[0020] Figure 5 This is a structural diagram of the scraping mechanism of the present invention;

[0021] Figure 6This is a top-view sectional view of the present invention.

[0022] In the diagram: 100, fixed base; 110, rotating base; 120, display board; 130, storage slot; 131, limiting slot; 132, limiting block; 133, connecting hole; 134, pull rope; 135, iron block; 136, magnet; 200, scraping mechanism; 210, sealing box; 220, elastic sheet; 230, bristles; 240, push plate; 250, sliding column; 260, sliding hole; 310, arc-shaped rack; 320, limiting column; 330, sliding opening; 340, second spring; 350, protrusion; 360, residual gear; 370, brush roller; 380, lever; 390, third spring. Detailed Implementation

[0023] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0024] Example 1

[0025] like Figure 1 , Figure 2 As shown, a teaching device includes a fixed base 100, a rotating base 110, and a display board 120. The display board 120 is slidably mounted on the top of the rotating base 110. A linear drive device is provided at the bottom of the display board 120. A brush roller 370 is provided on the inner side of the fixed base 100. The bottom of the brush roller 370 is rotatably connected to the inner bottom of the fixed base 100. A rotary drive device is also installed at the bottom of the brush roller 370. The rotary drive device drives the brush roller 370 to rotate. When the rotating base 110 drives the display board 120 to the position of the brush roller 370 and contacts the brush roller 370, the brush roller 370 cleans the surface of the display board 120.

[0026] It should be noted that the aforementioned rotary drive device can be an electric motor.

[0027] like Figures 3-4 As shown, the top of the rotating base 110 is provided with a storage groove 130. The display board 120 is slidably connected to the storage groove 130. When the display board 120 is retracted into the storage groove 130, the top of the display board 120 is flush with the top surface of the rotating base 110. Thus, when not in use, the top of the rotating base 110 can also be used as an ordinary table.

[0028] The rotary drive device is a motor, which is controlled by a PLC. The rotary drive device can drive the brush roller 370 to rotate back and forth, so that the brush roller 370 can scrape the display board 120 back and forth to remove dust.

[0029] The inner wall of the storage slot 130 is provided with a limiting groove 131, and the bottom of the display board 120 is connected to a limiting block 132. The limiting block 132 is slidably connected to the limiting groove 131, and the top of the limiting block 132 is connected to a pull rope 134. When the pull rope 134 is pulled upward under the drive of an external force, it causes the limiting block 132 and the display board 120 to rise synchronously. The aforementioned external force can be an electric telescopic rod.

[0030] The rotating base 110 has a connecting hole 133 inside, and a pull rope 134 is inserted through the connecting hole 133. One end of the connecting hole 133 extends to the top of the limiting groove 131, and the other end extends to the outer wall of the rotating base 110. An iron block 135 is connected to one end of the pull rope 134 near the outer wall of the rotating base 110. A magnet 136 is installed on the inner wall of the fixed base 100. The iron block 135 and the magnet 136 attract each other. The attraction between the magnet 136 and the iron block 135 is greater than the weight of the display board 120.

[0031] With the above scheme, by rotating the rotating seat 110, when the iron block 135 at the end of the pull rope 134 is attracted to the magnet 136, and then rotating the rotating seat 110, the iron block 135 remains stationary due to the attraction, so that the pull rope 134 can pull up the limiting block 132, thereby allowing the display board 120 to rise, achieving the teaching function. Then, when the rotating seat 110 is rotated again, since the limiting block 132 has reached the top, the iron block 135 separates from the magnet 136, and under the action of gravity, the limiting block 132 and the display board 120 descend synchronously.

[0032] like Figure 5 As shown, a scraping mechanism 200 is also provided on the inner side of the fixed base 100. The scraping mechanism 200 includes a sealing box 210. An elastic sheet 220 is connected to the side of the sealing box 210 near the rotating base 110. A brush bristle 230 is connected to the side of the elastic sheet 220 near the rotating base 110. The ends of the brush bristles 230 can contact and scrape the outer wall of the display board 120. When the display board 120 is lowered, the surface of the display board 120 can contact the ends of the brush bristles 230, thereby achieving a certain dust removal effect.

[0033] The sealed box 210 is provided with a sliding column 250 inside, and a sliding hole 260 is provided in the side wall of the fixed seat 100. The sliding column 250 is slidably connected to the sliding hole 260. A first spring 270 is also connected between the sliding column 250 and the inner wall of the sliding hole 260. A push plate 240 is connected to one end of the sliding column 250 near the elastic sheet 220. The push plate 240 contacts the elastic sheet 220.

[0034] With the above scheme, under the action of the first spring 270, the push plate 240 pushes the elastic sheet 220, causing the elastic sheet 220 to expand, thereby bringing the bristles 230 on the outer wall of the elastic sheet 220 closer to the outer wall of the display board 120, achieving a better dust removal effect.

[0035] like Figure 6 As shown, the end of the brush roller 370 is connected to a residual gear 360, and an arc-shaped rack 310 is provided on one side of the residual gear 360. The arc-shaped rack 310 meshes with the residual gear 360. The arc-shaped rack 310 can move back and forth under the drive of the reciprocating device. The reciprocating device can be an electric telescopic rod or other mechanism with reciprocating drive effect.

[0036] The arc-shaped rack 310 has sliding openings 330 at both ends. A limiting post 320 is provided inside the sliding opening 330. The limiting post 320 is connected to the inner bottom of the fixed base 100. A second spring 340 is connected between the limiting post 320 and the inner wall of the sliding opening 330.

[0037] One end of the arc-shaped rack 310 is connected to a protrusion 350. The outer wall of the rotating seat 110 is provided with a lever 380. One end of the lever 380 is hinged to the rotating seat 110. A third spring 390 is also connected between one end of the lever 380 and the rotating seat 110. The elastic force of the third spring 390 is greater than that of the second spring 340. When the lever 380 abuts against the protrusion 350 and the lever 380 moves toward the other side of the protrusion 350, it can drive the lever 380 and the arc-shaped rack 310 to move synchronously.

[0038] With the above scheme, when the rotating seat 110 rotates, the paddle block 380 drives the protrusion 350 and the arc rack 310 to move synchronously. When the arc rack 310 moves to the leftmost position, the third spring 390 begins to compress, so that the paddle block 380 avoids the protrusion 350. Then, driven by the second spring 340, the arc rack 310 resets to the right, so that the arc rack 310 moves in two directions, thereby driving the residual gear 360 to rotate back and forth.

[0039] The workflow of this embodiment:

[0040] Each display board 120 is raised in turn, and then the teaching card is inserted into the display board 120. When teaching is needed, the rotating seat 110 is rotated so that the iron block 135 is close to the magnet 136 and the two are attracted to each other. The rotating seat 110 then rotates. Since the iron block 135 at one end of the pull rope 134 is attracted to the magnet 136, the iron block 135 is fixed. Then the other end of the pull rope 134 drives the limit block 132 and the display board 120 to rise, thereby achieving the teaching effect.

[0041] Then the rotating seat 110 continues to rotate. Since one end of the pull rope 134 has reached the top, the iron block 135 separates from the magnet 136. Under the action of gravity, the display board 120 descends. At the same time as it descends, the surface of the display board 120 contacts the end of the brush bristles 230 on the scraping mechanism 200, achieving a preliminary dust removal effect.

[0042] Then the rotating seat 110 continues to rotate. When the display board 120 rotates to the position of the arc rack 310, the paddle 380 on the rotating seat 110 abuts against the protrusion 350 on the arc rack 310. Since the elastic force of the third spring 390 is greater than that of the second spring 340, the paddle 380 drives the protrusion 350 and the arc rack 310 to move synchronously. When the arc rack 310 moves to the leftmost position, it can no longer move to the left under the action of the limit post 320. At this time, the elastic force of the third spring 390 is overcome, and the paddle 380 avoids the protrusion 350. After avoiding the protrusion, under the elastic force of the second spring 340, the arc rack 310 automatically rebounds to the right, thereby causing the arc rack 310 to move in two directions, thereby driving the residual gear 360 to rotate back and forth, thereby causing the brush roller 370 on the residual gear 360 to swing back and forth, thereby further wiping away dust from the surface of the display board 120.

[0043] The embodiments described above are merely examples of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.

Claims

1. A teaching device, characterized in that, The device includes a fixed base (100), a rotating base (110), and a display board (120). The display board (120) is slidably mounted on the top of the rotating base (110). A linear drive device is provided at the bottom of the display board (120). A brush roller (370) is provided on the inner side of the fixed base (100). The bottom of the brush roller (370) is rotatably connected to the inner bottom of the fixed base (100). A rotary drive device is also installed at the bottom of the brush roller (370). The rotary drive device drives the brush roller (370) to rotate. When the rotating base (110) drives the display board (120) to rotate to the position of the brush roller (370) and contact the brush roller (370), the brush roller (370) cleans the surface of the display board (120). The top of the rotating base (110) is provided with a storage groove (130), the display board (120) is slidably connected to the storage groove (130), the inner wall of the storage groove (130) is provided with a limiting groove (131), the bottom of the display board (120) is connected to a limiting block (132), the limiting block (132) is slidably connected to the limiting groove (131), and the top of the limiting block (132) is connected to a pull rope (134). When the pull rope (134) is pulled upward under the drive of external force, it drives the limiting block (132) and the display board (120) to rise synchronously. The rotating seat (110) has a connecting hole (133) inside. A pull rope (134) is inserted through the connecting hole (133). One end of the connecting hole (133) extends to the top of the limiting groove (131) and the other end extends to the outer wall of the rotating seat (110). An iron block (135) is connected to one end of the pull rope (134) near the outer wall of the rotating seat (110). A magnet (136) is installed on the inner wall of the fixed seat (100). The iron block (135) and the magnet (136) attract each other. The attraction between the magnet (136) and the iron block (135) is greater than the weight of the display board (120).

2. The teaching equipment according to claim 1, characterized in that: When the display board (120) retracts into the storage slot (130), the top of the display board (120) is flush with the top surface of the rotating seat (110).

3. The teaching equipment according to claim 1, characterized in that: The rotary drive device is an electric motor, which drives the brush roller (370) to rotate back and forth.

4. The teaching equipment according to claim 3, characterized in that: The inner side of the fixed base (100) is also provided with a scraping mechanism (200). The scraping mechanism (200) includes a sealing box (210). An elastic sheet (220) is connected to the side of the sealing box (210) near the rotating base (110). A brush (230) is connected to the side of the elastic sheet (220) near the rotating base (110). The end of the brush (230) can contact and scrape the outer wall of the display board (120).

5. The teaching equipment according to claim 4, characterized in that: The sealed box (210) is provided with a sliding column (250) inside. The side wall of the fixed seat (100) is provided with a sliding hole (260). The sliding column (250) is slidably connected to the sliding hole (260). A first spring (270) is also connected between the inner wall of the sliding column (250) and the sliding hole (260). A push plate (240) is connected to one end of the sliding column (250) near the elastic sheet (220). The push plate (240) is in contact with the elastic sheet (220).

6. The teaching equipment according to claim 1, characterized in that: The brush roller (370) is connected to a residual gear (360) at its end. An arc-shaped rack (310) is provided on one side of the residual gear (360). The arc-shaped rack (310) meshes with the residual gear (360). The arc-shaped rack (310) can move back and forth under the drive of the reciprocating device.

7. The teaching equipment according to claim 6, characterized in that: The two ends of the arc-shaped rack (310) are provided with sliding openings (330). The sliding openings (330) are provided with limit posts (320). The limit posts (320) are connected to the inner bottom of the fixed base (100). A second spring (340) is connected between the limit posts (320) and the inner wall of the sliding openings (330).

8. The teaching equipment according to claim 7, characterized in that: One end of the arc-shaped rack (310) is connected to a protrusion (350). A lever (380) is provided on the outer wall of the rotating seat (110). One end of the lever (380) is hinged to the rotating seat (110). A third spring (390) is also connected between the one end of the lever (380) and the rotating seat (110). The elastic force of the third spring (390) is greater than that of the second spring (340). When the display board (120) rotates to the position of the arc-shaped rack (310), the lever (380) on the rotating seat (110) abuts against the protrusion (350) on the arc-shaped rack (310). Since the elastic force of the third spring (390) is greater than that of the second spring (340), the lever (380) on the rotating seat (110) abuts against the protrusion (350) on the arc-shaped rack (310). The elastic force of the third spring (390) is overcome, so the toggle block (380) drives the protrusion (350) and the arc rack (310) to move synchronously. When the arc rack (310) moves to the leftmost side, it can no longer move to the left under the action of the limit post (320). At this time, the elastic force of the third spring (390) is overcome, and the toggle block (380) avoids the protrusion (350). After avoiding, under the elastic force of the second spring (340), the arc rack (310) automatically rebounds to the right, so that the arc rack (310) moves in two directions, thereby driving the residual gear (360) to rotate back and forth, so that the brush roller (370) on the residual gear (360) swings back and forth.

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