CN214963347U

CN214963347U - Multimedia teaching lectern

Info

Publication number: CN214963347U
Application number: CN202023042497.3U
Authority: CN
Inventors: 许军
Original assignee: Hefei Yichuang Information Technology Co ltd
Current assignee: Hefei Yichuang Information Technology Co ltd
Priority date: 2020-12-17
Filing date: 2020-12-17
Publication date: 2021-12-03
Anticipated expiration: 2030-12-17

Abstract

The utility model discloses a multimedia teaching lectern relates to multimedia teaching lectern field, to the problem that current multimedia teaching lectern surface covering chalk dust and unable disposable open equipment, the scheme as follows is put forward now, it includes the lectern, lectern upper end fixed mounting has first fixed case, the inside fixed mounting of first fixed case has the biax motor, one side slidable mounting of lectern inside has the storage tank, the fixed cover of output that the biax motor is close to storage tank one side is equipped with the auxiliary chain wheel, the top fixed mounting that the storage tank is close to the biax motor has first rack plate. The utility model discloses novel structure, and the device is equipped with the cleaning roller that can make a round trip to reciprocate to clean the desktop, has reduced the dust on multimedia lectern surface to the drive through biax motor can drive multiple functions's use simultaneously, and the device novel structure, easy operation, suitable popularization.

Description

Multimedia teaching lectern

Technical Field

The utility model relates to a multimedia teaching lectern field especially relates to a multimedia teaching lectern.

Background

The multimedia teaching lectern is a multi-functional integration teaching lectern, and the performance is superior very, accords with present most teacher's demand of giving lessons, and various equipment of multimedia teaching lectern can let the student more thorough understanding the knowledge that teacher taught in lessons.

But can cover a large amount of chalk dust on the multimedia teaching lectern after class, not only seem unsightly, also can threaten teacher's health simultaneously, present multimedia teaching lectern is mostly all separately opened moreover, and the process is loaded down with trivial details, and waste time to this, we provide a multimedia teaching lectern.

SUMMERY OF THE UTILITY MODEL

The utility model provides a pair of multimedia teaching lectern has solved multimedia teaching lectern surface covering chalk dust and the unable problem of once only opening equipment.

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

a multimedia teaching lectern comprises a lectern, the upper end of the lectern is fixedly provided with a first fixed box, the interior of the first fixed box is fixedly provided with a double-shaft motor, one side of the interior of the lectern is slidably provided with a storage box, the double-shaft motor is provided with an auxiliary chain wheel close to an output fixed sleeve on one side of the storage box, the storage box is provided with a first rack plate close to the top end of the double-shaft motor, the interior of the lectern is rotatably provided with a first positioning shaft along the width direction thereof, the first positioning shaft is positioned between the auxiliary chain wheel and the first rack plate, the first positioning shaft is fixedly provided with a first gear, the first gear is meshed with the first rack plate, the auxiliary chain wheel is connected with the first gear through a second chain, the output fixed sleeve of the double-shaft motor far away from the auxiliary chain wheel is provided with a main chain wheel, the top end of the lectern is far away from the first fixed box which is fixedly provided with a second fixed box, the inside second axis of rotation of installing that rotates of the fixed incasement portion of second, the second axis of rotation is located the fixed incasement portion of second body of rod circumference lateral wall and has fixedly cup jointed the third sprocket, driving sprocket, dwang and third sprocket pass through first chain and connect, rotate on one of them chain link of first chain and install the dwang, just the clean cylinder of one end fixedly connected with of first chain is kept away from to the dwang, the inside one end of keeping away from the storage tank of lectern is provided with slider.

Preferably, the sliding device comprises a first chain wheel, a second chain wheel, a third chain, a fourth chain, a second positioning shaft, a sliding cover, a second rack plate, a first rotating shaft and a second gear, the second rotating shaft extends out of the side wall of the circumference of the rod body of the second fixing box and is fixedly sleeved with the first chain wheel, the inner wall of the teaching table far away from one end of the storage box is fixedly provided with the second positioning shaft, the second positioning shaft is positioned below the second rotating shaft, the end part of the second positioning shaft is fixedly connected with the second gear, the first chain wheel is connected with the second gear through the third chain, the surface of the teaching table is slidably provided with the sliding cover, the bottom end of the sliding cover is fixedly provided with the second rack plate, the lower end of one side of the second rack plate close to the second fixing box is rotatably provided with the first rotating shaft, the first rotating shaft is rotatably connected with the inner wall of the teaching table, the end part of the first rotating shaft is fixedly connected with a second chain wheel, the second chain wheel is meshed with a second rack plate, and the second chain wheel is connected with the second gear through a fourth chain.

Preferably, the surface of the cleaning roller is provided with a soft brush.

Preferably, the lower end of the teacher desk is provided with two drawers which are symmetrically arranged in a sliding way.

Preferably, the cleaning roller is arranged on the first chain and is used for cleaning the surface of the teacher's desk through the forward and reverse rotation of the double-shaft motor.

The utility model has the advantages that:

1. the device can be through setting up circulating reciprocating motion's cleaning roller to the chalk dust that talkback table surface cover sweeps away, has reached the effect of clearance lectern.

2. The device passes through the drive of biax motor to make the multi-functional drawer open, clean cylinder makes a round trip to clean and the slip lid is opened, once only realized the application of multiple functions, effectually solved multimedia teaching lectern and used loaded down with trivial details problem, reached swift convenient effect.

In conclusion, the device is provided with the cleaning roller capable of cleaning the tabletop back and forth in a reciprocating mode, dust on the surface of the multimedia teacher's desk is reduced, the multifunctional desk can be driven to be used through the driving of the double-shaft motor, and the device is novel in structure, simple to operate and suitable for popularization.

Drawings

FIG. 1 is a front cross-sectional view of the present invention;

fig. 2 is a top view of the present invention;

fig. 3 is a side sectional view of the present invention.

Reference numbers in the figures: 1. a teacher desk; 2. a first stationary box; 3. a second stationary box; 4. a first chain; 5. a secondary sprocket; 6. a first gear; 7. a second chain; 8. a storage box; 9. a first rack plate; 10. a sliding cover; 11. a second rack plate; 12. cleaning the roller; 13. a first sprocket; 14. a second gear; 15. a second sprocket; 16. a third chain; 17. a fourth chain; 18. A main sprocket; 19. a first rotating shaft; 20. a second rotating shaft; 21. rotating the rod; 22. a third sprocket; 23. a second positioning shaft; 24. a first positioning shaft; 25. a two-shaft motor.

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 multimedia teaching lectern, includes lectern 1, lectern 1 upper end fixed mounting has first fixed case 2, lectern 1 lower extreme slidable mounting has two drawers that are the symmetry and set up, the inside fixed mounting of first fixed case 2 has double-shaft motor 25, one side slidable mounting of lectern 1 inside has storage tank 8, double-shaft motor 25 is close to the fixed cover of output of storage tank 8 one side and is equipped with auxiliary chain wheel 5, storage tank 8 is close to the top fixed mounting of double-shaft motor 25 has first rack plate 9, and the inside of lectern 1 is rotated along its width direction and is installed first locating shaft 24, and first locating shaft 24 is located between auxiliary chain wheel 5 and the first rack plate 9, the fixed cover of first locating shaft 24 is equipped with first gear 6, just first gear 6 meshes with first rack plate 9, auxiliary chain wheel 5 is connected through second chain 7 with first gear 6, the fixed cover of output that vice sprocket 5 was kept away from to biax motor 25 is equipped with the main chain wheel 18, the fixed case 3 of first fixed case 2 fixed mounting is kept away from on the top of lectern 1, the fixed case 3 of second is inside to rotate and to install second axis of rotation 20, second axis of rotation 20 is located the fixed third sprocket 22 that has cup jointed of body of rod circumference lateral wall inside the fixed case 3 of second, main chain wheel 18, dwang 21 and third sprocket 22 are connected through first chain 4, rotate on one of them chain link of first chain 4 and install dwang 21, just the one end fixedly connected with cleaning roller 12 that first chain 4 was kept away from to dwang 21, cleaning roller 12 gets surface mounting and has soft brush, cleaning roller 12 makes cleaning roller 12 clean on lectern 1 surface through the positive and negative rotation of biax motor 25 on first chain 4, the one end that the incasement 8 was kept away from to lectern 1 inside is provided with slider, the sliding device comprises a first chain wheel 13, a second chain wheel 15, a third chain 16, a fourth chain 17, a second positioning shaft 23, a sliding cover 10, a second rack plate 11, a first rotating shaft 19 and a second gear 14, wherein the second rotating shaft 20 extends out of the circumferential side wall of the rod body of the second fixed box 3 and is fixedly sleeved with the first chain wheel 13, the inner wall of one end of the storage box 8, far away from the inside of the lectern 1, is fixedly provided with the second positioning shaft 23, the second positioning shaft 23 is positioned below the second rotating shaft 20, the end part of the second positioning shaft 23 is fixedly connected with the second gear 14, the first chain wheel 13 is connected with the second gear 14 through the third chain 16, the surface of the lectern 1 is slidably provided with the sliding cover 10, the bottom end of the sliding cover 10 is fixedly provided with the second rack plate 11, the second rack plate 11 is rotatably provided with the first rotating shaft 19 near the lower end of one side of the second fixed box 3, first axis of rotation 19 rotates with the inner wall of lectern 1 and is connected, the tip fixedly connected with second sprocket 15 of first axis of rotation 19, just second sprocket 15 meshes with second rack board 11, second sprocket 15, pass through fourth chain 17 with second gear 14 and be connected.

The working principle is as follows: when the device is used, firstly, the double-shaft motor 25 is turned on, output shafts at two ends of the double-shaft motor 25 respectively drive the auxiliary chain wheel 5 and the main chain wheel 18, the auxiliary chain wheel 5 rotates to enable the second chain 7 to rotate, so that the first gear 6 rotates, then the first gear 6 rotates to enable the first rack plate 9 to slide outwards, and simultaneously the storage box 8 is driven to slide outwards until the storage box is completely opened, the main chain wheel 18 drives the first chain 4 to rotate, so that the rotating rod 21 rotates along with the first chain 4, the rotating rod 21 simultaneously drives the cleaning roller 12 to clean on a table top, then the third chain wheel 22 drives the second rotating shaft 20 to rotate, so that the first chain wheel 13 is driven, the first chain wheel 13 rotates to drive the fourth chain 17, then the fourth chain 17 enables the second chain wheel 15 to rotate, the second chain wheel 15 drives the second rack plate 11 to horizontally move towards one side of the second fixed box 3, the second rack plate 11 drives the sliding cover 10 on the surface of the lectern 1 to slide, can accomplish the operation, the device is when closing, the reversal of biax motor 25, secondary sprocket 5 rotates and makes second chain 7 rotate, thereby make first gear 6 rotate, later first gear 6 rotates and makes first rack board 9 slide to lectern 1, it is until closing completely to drive storage tank 8 inside slip simultaneously, thereby main sprocket 18 drives first chain 4 and rotates and make dwang 21 and third sprocket 22 rotate, dwang 21 reciprocates on sliding tray 26 and rotates, it cleans once more to drive cleaning roller 12 on the desktop simultaneously, last first sprocket 13 rotates and drives fourth chain 17, later fourth chain 17 makes second sprocket 15 rotate, second sprocket 15 drives second rack board 11 towards one side horizontal migration of first fixed case 2, the operation is also closed to the lid 10 that slides simultaneously.

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 utility model provides a multimedia teaching lectern, includes lectern (1), its characterized in that, lectern (1) upper end fixed mounting has first fixed case (2), first fixed case (2) inside fixed mounting has double-shaft motor (25), one side slidable mounting of lectern (1) inside has storage tank (8), double-shaft motor (25) are close to the fixed cover of output of storage tank (8) one side and are equipped with auxiliary chain wheel (5), top fixed mounting that storage tank (8) are close to double-shaft motor (25) has first rack plate (9), the inside of lectern (1) is rotated along its width direction and is installed first locating shaft (24), and first locating shaft (24) are located between auxiliary chain wheel (5) and first rack plate (9), first locating shaft (24) fixed cover is equipped with first gear (6), just first gear (6) and first rack plate (9) meshing, the auxiliary chain wheel (5) is connected with the first gear (6) through the second chain (7), the fixed cover of output of keeping away from auxiliary chain wheel (5) of double-shaft motor (25) is equipped with main chain wheel (18), the top of lectern (1) is kept away from first fixed case (2) fixed mounting and is had the fixed case of second (3), the fixed case of second (3) internal rotation installs second axis of rotation (20), second axis of rotation (20) are located the fixed third sprocket (22) of having cup jointed of the inside body of rod circumference lateral wall of second fixed case (3), main chain wheel (18), dwang (21) and third sprocket (22) are connected through first chain (4), rotate on one of them chain link of first chain (4) and install dwang (21), just the one end fixedly connected with cleaning roller (12) of first chain (4) are kept away from to dwang (21), a sliding device is arranged at one end, far away from the storage box (8), of the inside of the teacher desk (1).

2. The teaching desk for multimedia teaching as claimed in claim 1, wherein the sliding device comprises a first chain wheel (13), a second chain wheel (15), a third chain (16), a fourth chain (17), a second positioning shaft (23), a sliding cover (10), a second rack plate (11), a first rotating shaft (19) and a second gear (14), the second rotating shaft (20) extends out of the circumferential side wall of the rod body of the second fixing box (3) and is fixedly sleeved with the first chain wheel (13), the inner wall of the teaching desk (1) far away from one end of the storage box (8) is fixedly provided with the second positioning shaft (23), the second positioning shaft (23) is positioned below the second rotating shaft (20), the end part of the second positioning shaft (23) is fixedly connected with the second gear (14), and the first chain wheel (13) is connected with the second gear (14) through the third chain (16), desk (1) surface sliding installs slip lid (10), the bottom fixed mounting of slip lid (10) has second rack board (11), one side lower extreme that second rack board (11) are close to the fixed case of second (3) is rotated and is installed first rotation axis (19), first rotation axis (19) are connected with the inner wall rotation of desk (1), the tip fixedly connected with second sprocket (15) of first rotation axis (19), just second sprocket (15) and second rack board (11) meshing, second sprocket (15), be connected through fourth chain (17) with second gear (14).

3. The teacher's desk as claimed in claim 1, wherein the cleaning roller (12) has a surface mounted with soft brushes.

4. The teacher's desk for multimedia teaching according to claim 1, wherein two drawers are installed at the lower end of the teacher's desk (1) in a sliding manner and are symmetrically arranged.

5. A multimedia teaching lectern according to claim 1 wherein the cleaning roller (12) is arranged to clean the surface of the lectern (1) by forward and reverse rotation of the dual shaft motor (25) on the first chain (4) by the cleaning roller (12).