CN212005100U

CN212005100U - Projector device for multimedia classroom

Info

Publication number: CN212005100U
Application number: CN202020617057.7U
Authority: CN
Inventors: 张庆国; 李亚丽
Original assignee: Zhengzhou Hanzhibo Electronic Technology Co ltd
Current assignee: Zhengzhou Hanzhibo Electronic Technology Co ltd
Priority date: 2020-04-22
Filing date: 2020-04-22
Publication date: 2020-11-24
Anticipated expiration: 2030-04-22

Abstract

The utility model belongs to the technical field of projectors, in particular to a projector device for multimedia classrooms, which is aimed at the problem that some projectors are hung on a ceiling to prevent artificial damage, the height of the projectors is adjusted by an independent lifting system, but the screen also needs the assistance of the lifting system, the two projectors can not work simultaneously, the repeated operation amount is increased, and the time is wasted, the utility model provides a proposal which comprises a box body, the top of the box body is fixedly connected with a fixed rod, the top of the fixed rod is fixedly connected with a fixed plate, a ceiling screw is connected with the fixed plate through a screw thread, the ceiling screw is connected with the ceiling, a cylinder is connected with the inner wall of the top of the box body in a rotating way, when the screen is rotated by a second rotating shaft, the cylinder can be rotated through a third bevel gear, a fourth bevel gear, a first rotating shaft, a second bevel gear and a first bevel gear, and, the screen and the projector move synchronously, and time is saved.

Description

Projector device for multimedia classroom

Technical Field

The utility model relates to a projecting apparatus technical field especially relates to a projecting apparatus device that multimedia classroom used.

Background

The projector, also known as a projector, is a device capable of projecting images or videos onto a curtain, 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.

The existing projector is mostly hung on a ceiling for preventing artificial damage, the height of the projector is adjusted through an independent lifting system, but the curtain also needs the assistance of the lifting system, the curtain and the lifting system cannot work simultaneously, the repeated operation amount is increased, and the time is wasted.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving some projecting apparatus and hanging on the ceiling for preventing that the people from damaging is many, come height-adjusting through independent operating system, but the curtain also needs operating system supplementary, and both can not simultaneous working, increase the repetitive operation volume, the shortcoming of waste time, and the projecting apparatus device that a multimedia classroom was used that proposes.

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

a projector device for a multimedia classroom comprises a box body, wherein the top of the box body is fixedly connected with a fixed rod, the top of the fixed rod is fixedly connected with a fixed plate, the fixed plate is in threaded connection with a ceiling screw, the ceiling screw is in threaded connection with a ceiling, the inner wall of the top of the box body is rotatably connected with a cylinder, a screw rod is in threaded connection with the cylinder, the bottom of the screw rod is fixedly connected with a projector, the inner wall of the bottom of the box body is fixedly provided with a chute, the projector is in sliding connection with the inner wall of the chute, the cylinder is fixedly sleeved with a first bevel gear, the first bevel gear is meshed with a second bevel gear, one side of the second bevel gear is fixedly connected with one end of a first rotating shaft, the bottom of the ceiling is fixedly connected with a curtain box, a second rotating shaft is rotatably arranged in, the fourth bevel gear is fixedly connected to the other side of the first rotating shaft.

Preferably, the fixed cover of one end of first pivot is equipped with first bearing, the first connecting rod of top fixedly connected with of first bearing, and first connecting rod fixed connection is in the bottom of ceiling, and the fixed cover of the other end of first pivot is equipped with the second bearing, the top fixedly connected with second connecting rod of second bearing, second connecting rod fixed connection is on the top inner wall of box.

Preferably, the second rotating shaft is wound with a curtain, a gear is fixedly sleeved at one end of the second rotating shaft, and a lifting rope is arranged on the gear in a meshed mode.

Preferably, the equal fixedly connected with slide bar in top four corners department of projecting apparatus, the sliding sleeve is equipped with the slide cartridge on the slide bar, slide cartridge fixed connection is on the top inner wall of box.

Preferably, equal fixedly connected with motor on the both sides inner wall of box, fixedly connected with heat dissipation fan on the output shaft of motor has seted up a plurality of louvres on the box.

Compared with the prior art, the utility model has the advantages of:

1. this scheme rotates when putting down the curtain in the second pivot, can rotate the drum through third bevel gear, fourth bevel gear, first pivot, second bevel gear and first bevel gear, and then releases the projecting apparatus from the box through the screw rod for curtain and projecting apparatus synchronous movement, save time.

2. This scheme is at the top four corners fixedly connected with slide bar of projecting apparatus, and the slip cap is equipped with the slide cartridge on the slide bar, can restrict projecting apparatus and screw rod through the slide cartridge and follow the drum and rotate to the deviation appears.

Drawings

Fig. 1 is a schematic structural diagram of a side view section of a projector device for a multimedia classroom according to the present invention;

fig. 2 is a schematic structural diagram of a front view section of a projector device for a multimedia classroom according to the present invention;

fig. 3 is a schematic structural diagram of a portion a in fig. 1 of a projector device for a multimedia classroom according to the present invention.

In the figure: the device comprises a box body 1, a fixing rod 2, a fixing plate 3, a ceiling screw 4, a cylinder 5, a screw 6, a projector 7, a sliding chute 8, a first bevel gear 9, a second bevel gear 10, a first rotating shaft 11, a curtain box 12, a second rotating shaft 13, a third bevel gear 14, a fourth bevel gear 15, a first bearing 16, a first connecting rod 17, a second bearing 18, a second connecting rod 19, a curtain 20, a gear 21, a lifting rope 22, a sliding rod 23, a sliding barrel 24, a motor 25, a heat dissipation fan 26 and a heat dissipation hole 27.

Detailed Description

The technical solutions in the embodiments will be described clearly and completely with reference to the drawings in the embodiments, and it is obvious that the described embodiments are only a part of the embodiments, but not all embodiments.

Example one

Referring to fig. 1-3, a projector device for multimedia classroom comprises a box body 1, a fixed rod 2 is fixedly connected to the top of the box body 1, a fixed plate 3 is fixedly connected to the top of the fixed rod 2, a ceiling screw 4 is connected to the fixed plate 3 in a threaded manner, a ceiling is connected to the ceiling screw 4 in a threaded manner, a cylinder 5 is rotatably connected to the inner wall of the top of the box body 1, a screw 6 is connected to the cylinder 5 in a threaded manner, a projector 7 is fixedly connected to the bottom of the screw 6, a chute 8 is fixedly arranged on the inner wall of the bottom of the box body 1, the projector 7 is slidably connected to the inner wall of the chute 8, a first bevel gear 9 is fixedly sleeved on the cylinder 5, a second bevel gear 10 is engaged with the first bevel gear 9, one side of the second bevel gear 10 is fixedly connected to one end of a first rotating shaft 11, the second rotating shaft 13 is fixedly sleeved with a third bevel gear 14, the third bevel gear 14 is engaged with a fourth bevel gear 15, and the fourth bevel gear 15 is fixedly connected to the other side of the first rotating shaft 11 and can keep the second rotating shaft 13, the first rotating shaft 11 and the cylinder 5 to synchronously rotate.

In this embodiment, the fixed cover of one end of first pivot 11 is equipped with first bearing 16, the first connecting rod 17 of top fixedly connected with of first bearing 16, first connecting rod 17 fixed connection is in the bottom on ceiling, the fixed cover of the other end of first pivot 11 is equipped with second bearing 18, the top fixedly connected with second connecting rod 19 of second bearing 18, second connecting rod 19 fixed connection is on the top inner wall of box 1, conveniently fixes first pivot 11.

In this embodiment, the curtain 20 is wound on the second rotating shaft 13, a gear 21 is fixedly sleeved at one end of the second rotating shaft 13, a lifting rope 22 is engaged with the gear 21, and the second rotating shaft 13 can be rotated by the cooperation of the lifting rope 22 and the gear 21.

In this embodiment, the four corners of the top of the projector 7 are fixedly connected with slide bars 23, the slide bars 23 are slidably sleeved with slide cylinders 24, the slide cylinders 24 are fixedly connected to the inner wall of the top of the box body 1, and the projector 7 and the screw 6 can be prevented from rotating along with the cylinder 5 through the slide cylinders 24.

In this embodiment, equal fixedly connected with motor 25 on the both sides inner wall of box 1, fixedly connected with heat dissipation fan 26 on the output shaft of motor 25 has seted up a plurality of louvres 27 on the box 1, the convenient heat dissipation.

Example two

Referring to fig. 1-3, a projector device for multimedia classroom comprises a box body 1, a fixed rod 2 is fixedly welded on the top of the box body 1, a fixed plate 3 is fixedly welded on the top of the fixed rod 2, a ceiling screw 4 is connected on the fixed plate 3 in a threaded manner, a ceiling is connected on the ceiling screw 4 in a threaded manner, a cylinder 5 is rotatably connected on the inner wall of the top of the box body 1, a screw 6 is connected on the cylinder 5 in a threaded manner, a projector 7 is fixedly connected on the bottom of the screw 6 through a screw, a chute 8 is fixedly arranged on the inner wall of the bottom of the box body 1, the projector 7 is slidably connected on the inner wall of the chute 8, a first bevel gear 9 is fixedly sleeved on the cylinder 5, a second bevel gear 10 is engaged on the first bevel gear 9, one side of the second bevel gear 10 is fixedly, the curtain box 12 is rotatably provided with a second rotating shaft 13, the second rotating shaft 13 is fixedly sleeved with a third bevel gear 14, the third bevel gear 14 is meshed with a fourth bevel gear 15, and the fourth bevel gear 15 is fixedly welded on the other side of the first rotating shaft 11 and can keep the second rotating shaft 13, the first rotating shaft 11 and the cylinder 5 to rotate synchronously.

In this embodiment, the fixed cover of one end of first pivot 11 is equipped with first bearing 16, and the fixed welding in top of first bearing 16 has first connecting rod 17, and the fixed welding in bottom at the ceiling of first connecting rod 17, the fixed cover of the other end of first pivot 11 is equipped with second bearing 18, and the fixed welding in top of second bearing 18 has second connecting rod 19, and second connecting rod 19 fixed welding is on the top inner wall of box 1, conveniently fixes first pivot 11.

In this embodiment, the four corners of the top of the projector 7 are fixedly welded with the sliding rods 23, the sliding rods 23 are slidably sleeved with the sliding cylinders 24, the sliding cylinders 24 are fixedly welded on the inner wall of the top of the box body 1, and the projector 7 and the screw 6 can be prevented from rotating along with the cylinder 5 through the sliding cylinders 24.

In this embodiment, all through screw fixedly connected with motor 25 on the both sides inner wall of box 1, fixed welding has heat dissipation fan 26 on the output shaft of motor 25, has seted up a plurality of louvres 27 on the box 1, convenient heat dissipation.

In this embodiment, the gear 23 can be rotated by pulling the lifting rope 22, the gear 23 will drive the second rotating shaft 13 to rotate when rotating, the third bevel gear 14 on the second rotating shaft 13 can drive the first rotating shaft 11 to rotate by the fourth bevel gear 15 when rotating, the cylinder 5 can be rotated by the first bevel gear 9 when the second bevel gear 10 on the first rotating shaft 11 rotates, the projector 7 can be pushed downward by the screw 6 when the cylinder 5 rotates, so that the projector 7 and the curtain 20 descend together, thereby saving time, the slide rod 23 on the projector 7 can slide in the slide cylinder 24 when the projector 7 descends, the slide cylinder 24 can prevent the projector 7 and the screw 6 from rotating together with the cylinder 5, the first bearing 16, the first connecting rod 17 and the second bearing 18 on the first rotating shaft 11, and the second connecting rod 19 can fix the first rotating shaft 11, and the fixing rod 2, The box body 1 can be fixed on a ceiling by matching the fixing plate 3 with the ceiling screw 4, and the probability of artificial damage is small.

The above descriptions are only preferred embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the scope of the present invention, and the technical solutions and the utility model concepts of the present invention are equivalent to, replaced or changed.

Claims

1. A projector device for a multimedia classroom comprises a box body (1) and is characterized in that the top of the box body (1) is fixedly connected with a fixed rod (2), the top of the fixed rod (2) is fixedly connected with a fixed plate (3), the fixed plate (3) is in threaded connection with a ceiling screw (4), the ceiling screw (4) is in threaded connection with a ceiling, the inner wall of the top of the box body (1) is rotatably connected with a cylinder (5), the cylinder (5) is in threaded connection with a screw (6), the bottom of the screw (6) is fixedly connected with a projector (7), the inner wall of the bottom of the box body (1) is fixedly provided with a chute (8), the projector (7) is slidably connected onto the inner wall of the chute (8), the cylinder (5) is fixedly sleeved with a first bevel gear (9), the first bevel gear (9) is engaged with a second bevel gear (10), one side of the second bevel gear (10) is fixedly, the bottom of the ceiling is fixedly connected with a curtain box (12), a second rotating shaft (13) is arranged in the curtain box (12) in a rotating mode, a third bevel gear (14) is fixedly sleeved on the second rotating shaft (13), a fourth bevel gear (15) is arranged on the third bevel gear (14) in a meshed mode, and the fourth bevel gear (15) is fixedly connected to the other side of the first rotating shaft (11).

2. The projector apparatus for multimedia classroom according to claim 1, wherein one end of the first rotating shaft (11) is fixedly sleeved with a first bearing (16), a top of the first bearing (16) is fixedly connected with a first connecting rod (17), the first connecting rod (17) is fixedly connected to the bottom of the ceiling, the other end of the first rotating shaft (11) is fixedly sleeved with a second bearing (18), a top of the second bearing (18) is fixedly connected with a second connecting rod (19), and the second connecting rod (19) is fixedly connected to the inner wall of the top of the box body (1).

3. The projector apparatus for multimedia classroom according to claim 1, wherein the second rotating shaft (13) is wound with a curtain (20), one end of the second rotating shaft (13) is fixedly sleeved with a gear (21), and the gear (21) is engaged with a lifting rope (22).

4. The projector device for the multimedia classroom as claimed in claim 1, wherein the top four corners of the projector (7) are fixedly connected with slide bars (23), slide cylinders (24) are slidably sleeved on the slide bars (23), and the slide cylinders (24) are fixedly connected to the inner wall of the top of the box body (1).

5. The projector device for the multimedia classroom as claimed in claim 1, wherein the inner walls of the two sides of the case (1) are both fixedly connected with a motor (25), an output shaft of the motor (25) is fixedly connected with a heat dissipation fan (26), and the case (1) is provided with a plurality of heat dissipation holes (27).