CN213815038U

CN213815038U - Multimedia playing device for education and teaching

Info

Publication number: CN213815038U
Application number: CN202120126203.0U
Authority: CN
Inventors: 李燕燕; 王琳; 杨歆歆
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-01-18
Filing date: 2021-01-18
Publication date: 2021-07-27
Anticipated expiration: 2031-01-18

Abstract

The utility model belongs to the technical field of teaching aid, specifically be a multimedia playing device for education and teaching, including the base, the bottom fixedly connected with connecting rod of base. The utility model discloses a set up No. two electric motor, No. two electric motor pass through the fixed axle on the carousel and drive the hollow slab and control the removal with the sector plate, the sector plate drives the rack plate on the slide and controls the removal through the arc rack plate of bottom, position control about realizing the slide, rethread electric motor's setting drives a gear revolve, a gear drives the dust guard who accepts the board top through No. two gears and dwang and rotates, realize preventing dust to the projecting apparatus, avoid the dust to pile up and cause the camera lens pollution at the top of projecting apparatus, influence the broadcast effect of projecting apparatus, still set up two fixed plates, fixedly connected with connecting plate between two fixed plates, the effect of support is played to the connecting rod to being provided with of connecting plate, also play stable effect simultaneously.

Description

Multimedia playing device for education and teaching

Technical Field

The utility model relates to a teaching aid technical field specifically is a multimedia playing device for education and teaching.

Background

With the development of science and technology, multimedia devices are becoming more and more popular in education and teaching in schools, a projector and a projection screen are one of the multimedia devices for playing teaching video contents, the projector is also called a projector, is a device capable of projecting images or videos onto the screen, and can be connected with a computer, a VCD, a DVD, a BD, a game machine, a DV, and the like through different interfaces to play corresponding video signals.

However, the existing projector is installed on an installation plate at the top of a classroom, and a lot of dust can appear at the top of the projector due to long-term high altitude, so that the dust can permeate into the projector to cause lens pollution and influence the playing effect of the projector.

In order to solve the above problems, a multimedia playing device for education and teaching is provided in the present application.

SUMMERY OF THE UTILITY MODEL

Objects of the invention

For solving the technical problem who exists among the background art, the utility model provides a multimedia play device for education and teaching has and carries out dirt-proof characteristics to the projecting apparatus.

(II) technical scheme

In order to solve the technical problem, the utility model provides a multimedia playing device for education and teaching, which comprises a base, wherein the bottom of the base is fixedly connected with a connecting rod, the left side and the right side of the connecting rod are connected with a third fixed plate, the inside of the third fixed plate is rotatably connected with a rotating shaft, one end of the rotating shaft is fixedly connected with a second electric motor, the second electric motor is fixedly connected with the inside of the third fixed plate, the other end of the rotating shaft is fixedly connected with a rotating disc, one side of the rotating disc is fixedly connected with a fixed shaft, the outer side of the fixed shaft is slidably connected with a hollow plate, the bottom of the hollow plate is fixedly connected with a sector plate, the hollow plate and the sector plate are integrally formed, the bottom of the sector plate is provided with an arc-shaped rack plate, the left side and the right side of the connecting rod are fixedly connected with a second fixed plate below the third fixed plate, the spout has been seted up to the inside of No. two fixed plates, the inside sliding connection of spout has the slide, the top fixedly connected with rack plate of slide, the left inside of slide rotates and is connected with the dwang, the board is accepted to the outside fixedly connected with of dwang, the top fixedly connected with dust guard of accepting the board, the bottom fixedly connected with projecting apparatus of connecting rod.

Preferably, the left side and the right side of the base are fixedly connected with fixing blocks, and the inner threads of the fixing blocks are connected with bolts.

Preferably, the bottom of base fixedly connected with two fixed plates No. one, two fixedly connected with connecting plate between the fixed plate, the middle part and the connecting rod fixed connection of connecting plate.

Preferably, the bottom of the sliding plate is fixedly connected with a first electric motor, the output end of the first electric motor is fixedly connected with a first gear, and the first gear is meshed with a second gear.

Preferably, the left and right sides of connecting rod just is located two backup pads of below fixedly connected with of No. two fixed plates, two the bottom fixed connection of backup pad and No. two fixed plates.

Preferably, the third fixing plate is connected with the hollow plate through a connecting shaft, and the connecting shaft is rotatably connected with the hollow plate.

The above technical scheme of the utility model has following profitable technological effect:

1. the utility model discloses a set up electric motor No. two, No. two electric motor pass through the fixed axle on the carousel and drive and control about hollow core plate and the sector plate, hollow core plate and sector plate integrated into one piece, the sector plate drives the rack plate on the slide and controls through the arc rack plate of bottom and removes, position control about realizing the slide, the setting of rethread electric motor drives a gear revolve, a gear drives the dust guard rotation of accepting the board top through No. two gears and dwang, the realization is dustproof to the projecting apparatus, avoid the dust to pile up and cause the camera lens to pollute at the top of projecting apparatus, influence the broadcast effect of projecting apparatus.

2. The utility model discloses a set up two fixed plates, fixedly connected with connecting plate between two fixed plates, the effect that does benefit to the connecting rod and play the support that is provided with of connecting plate also plays stable effect simultaneously.

Drawings

FIG. 1 is a schematic view of the internal structure of the present invention;

FIG. 2 is a schematic side view of the third fixing plate of the present invention;

fig. 3 is a schematic view of a top view structure of the slide board of the present invention.

Reference numerals:

1. a first fixing plate; 2. a connecting rod; 3. a second fixing plate; 4. a third fixing plate; 5. a turntable; 6. a hollow slab; 7. a slide plate; 8. a projector; 9. an electric motor; 10. a first gear; 11. a second gear; 12. a connecting shaft; 13. a second electric motor; 14. a base; 15. a sector plate; 16. a dust guard.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

As shown in FIGS. 1-3, the utility model provides a multimedia playing device for education and teaching, which comprises a base 14, a connecting rod 2 is fixedly connected to the bottom of the base 14, a third fixing plate 4 is connected to the left and right sides of the connecting rod 2, a rotating shaft is rotatably connected to the inside of the third fixing plate 4, a second electric motor 13 is fixedly connected to one end of the rotating shaft, the second electric motor 13 is fixedly connected to the inside of the third fixing plate 4, a rotary disc 5 is fixedly connected to the other end of the rotating shaft, a fixing shaft is fixedly connected to one side of the rotary disc 5, a hollow plate 6 is slidably connected to the outer side of the fixing shaft, a sector plate 15 is fixedly connected to the bottom of the hollow plate 6, the hollow plate 6 and the sector plate 15 are integrally formed, an arc-shaped rack plate is arranged at the bottom of the sector plate 15, a second fixing plate 3 is fixedly connected to the left and right sides of the connecting rod 2 and below the third fixing plate 4, the spout has been seted up to fixed plate 3's inside No. two, and the inside sliding connection of spout has slide 7, and the top fixedly connected with rack plate of slide 7, the left inside rotation of slide 7 is connected with the dwang, and the board is accepted to the outside fixedly connected with of dwang, accepts the top fixedly connected with dust guard 16 of board, and the bottom fixedly connected with projecting apparatus 8 of connecting rod 2, the use combination of two rack plates is favorable to driving slide 7 and removes.

Further, the left and right sides fixedly connected with fixed block of base 14, the inside threaded connection of fixed block has the bolt, and the setting of bolt does benefit to and fixes base 14 on the mounting panel, has played the fixed action, prevents that the phenomenon that drops from appearing in connecting rod 2 and the projecting apparatus 8 of base 14 bottom.

Further, two fixed plates 1 of bottom fixedly connected with of base 14, fixedly connected with connecting plate between two fixed plates 1, the middle part and the connecting rod 2 fixed connection of connecting plate, the setting of connecting plate is favorable to playing the effect of support to connecting rod 2, also plays stable effect to connecting rod 2 simultaneously.

Further, the bottom fixedly connected with electric motor 9 of slide 7, No. one gear of output fixedly connected with 10 of electric motor 9, No. one gear 10 and No. two gears 11 meshing are connected, drive No. one gear 10 through an electric motor 9 and rotate, and No. one gear 10 drives the dwang through No. two gears 11 and rotates, and the rotation of dwang is favorable to driving the dust guard 16 at accepting the board top and rotates.

Further, the left and right sides of connecting rod 2 just is located two backup pads of below fixedly connected with of No. two fixed plates 3, two backup pads and No. two fixed plate 3's bottom fixed connection, and one side and the connecting rod 2 of two backup pads are connected, and the opposite side is connected with No. two fixed plate 3's bottom, and two backup pads have the effect of supporting to No. two fixed plates 3.

Furthermore, No. three fixed plate 4 is connected with hollow plate 6 through connecting axle 12, and connecting axle 12 is connected with hollow plate 6 rotation, after starting No. two electric motor 13, drives the fixed axle on carousel 5 through the pivot and slides in hollow plate 6, because connecting axle 12 links No. three fixed plate 4 and hollow plate 6 together, along with the removal of fixed axle in hollow plate 6, drives the sector plate 15 rotation of hollow plate 6 bottom.

The utility model discloses a theory of operation and use flow: firstly, two sides of a base 14 are provided with fixed blocks, bolts are arranged inside the fixed blocks, the base 14 is fixed on a mounting plate through the bolts, the top of the base 14 is provided with two first fixed plates 1, a connecting plate is arranged between the two first fixed plates 1 and has the functions of supporting and stabilizing the connecting rod 2, the projector 8 at the bottom of the connecting rod 2 is fixed, then a second electric motor 13 is started, the second electric motor 13 drives a rotary disc 5 to rotate through a rotating shaft, one side of the rotary disc 5 is provided with a fixed shaft which is arranged in a hollow plate 6, the fixed shaft slides in the hollow plate 6 along with the rotation of the rotary disc 5, and further drives an arc-shaped rack plate at the bottom of a sector plate 15 to move left and right, and the arc-shaped rack plate is meshed and connected with a rack plate at the top of a sliding plate 7, so that the sliding plate 7 can be driven to move left and right in a sliding chute formed by the second fixed plates 3, starting an electric motor 9 at last, an electric motor 9 drives No. two gears 11 through a gear 10 and rotates, No. two gears 11 drive the socket board through the dwang and rotate, and the dwang also rotates in slide 7 and connects simultaneously, and the socket board drives dust guard 16 and rotates, is favorable to preventing dust to projecting apparatus 8 along with dust guard 16's rotation, reaches dirt-proof effect.

It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.

Claims

1. The utility model provides a multimedia playing device for education and teaching, includes base (14), its characterized in that, the bottom fixedly connected with connecting rod (2) of base (14), the left and right sides of connecting rod (2) is connected with No. three fixed plates (4), the inside rotation of No. three fixed plates (4) is connected with the pivot, the one end fixedly connected with electric motor (13) No. two of pivot, the inside fixed connection of No. two electric motor (13) and No. three fixed plates (4), the other end fixedly connected with carousel (5) of pivot, one side fixedly connected with fixed axle of carousel (5), the outside sliding connection of fixed axle has hollow plate (6), the bottom fixedly connected with sector plate (15) of hollow plate (6), hollow plate (6) and sector plate (15) integrated into one piece, the bottom of sector plate (15) is equipped with arc rack plate, the utility model discloses a novel fixing device for the motor vehicle, including connecting rod (2), fixed plate (3) No. two below fixedly connected with of both sides and being located No. three fixed plate (4), the spout has been seted up to the inside of No. two fixed plate (3), the inside sliding connection of spout has slide (7), the top fixedly connected with rack plate of slide (7), the left inside of slide (7) is rotated and is connected with the dwang, the outside fixedly connected with connecting plate of dwang, the top fixedly connected with dust guard (16) of connecting plate, the bottom fixedly connected with projecting apparatus (8) of connecting rod (2).

2. The multimedia playing device for education and teaching according to claim 1, wherein the left and right sides of the base (14) are fixedly connected with fixing blocks, and the inner threads of the fixing blocks are connected with bolts.

3. The multimedia playing device for education and teaching according to claim 1, wherein two first fixing plates (1) are fixedly connected to the bottom of the base (14), a connecting plate is fixedly connected between the two first fixing plates (1), and the middle of the connecting plate is fixedly connected with the connecting rod (2).

4. The multimedia playing device for education and teaching according to claim 1, wherein the first electric motor (9) is fixedly connected to the bottom of the sliding plate (7), the first gear (10) is fixedly connected to the output end of the first electric motor (9), and the first gear (10) is meshed with the second gear (11).

5. The multimedia playing device for education and teaching according to claim 1, wherein two support plates are fixedly connected to the left and right sides of the connecting rod (2) and below the second fixing plate (3), and the two support plates are fixedly connected to the bottom of the second fixing plate (3).

6. The multimedia player for educational teaching according to claim 1, wherein the third fixing plate (4) is connected to the hollow plate (6) by a connecting shaft (12), and the connecting shaft (12) is rotatably connected to the hollow plate (6).