Adjustable multimedia exhibition hall projection device

Abstract

The utility model relates to the technical field of projection, in particular to an adjustable multimedia exhibition hall projection device. According to the technical scheme, the device comprises a lifting mechanism, a coupler is installed at the bottom of the lifting mechanism, an adjusting mechanism is installed at the bottom of the coupler and comprises a fixing plate, a first motor, a driving gear and a protective cover, a second motor is installed on one side of the bottom of the fixing plate, and the protective cover is installed at the top of the adjusting mechanism; a driving gear is rotationally mounted in the protective cover, a driven gear is mounted on one side of the driving gear, an adjusting rod penetrates through the fixing plate and is mounted at the bottom of the driven gear, and a mounting mechanism is mounted at the bottom of the adjusting rod; and the mounting mechanism comprises limiting tables and a mounting plate, the limiting tables are mounted on one side of the top of the mounting plate, and a placement frame is rotationally mounted between the limiting tables. According to the utility model, by changing the projection height, direction and angle, the movement range of the projector is enlarged, and the projection effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of projection, in particular to an adjustable multimedia exhibition hall projection device. Background Art

[0002] With the continuous advancement and innovation of science and technology, the traditional flat display method can no longer meet people's needs for information display. People begin to pursue a more vivid, intuitive and immersive display experience. Against this background, multimedia exhibition hall projection technology came into being. In the existing multimedia exhibition hall design, projection equipment is one of the important means of displaying content. Traditional multimedia exhibition hall projection devices can usually only adjust the height of the device according to needs, but when installed in the multimedia exhibition hall, the direction and angle of the projection cannot be adjusted according to the projection needs. Therefore, it is necessary to design an adjustable multimedia exhibition hall projection device. Utility Model Content

[0003] The purpose of the utility model is to provide an adjustable multimedia exhibition hall projection device to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an adjustable multimedia exhibition hall projection device, comprising a lifting mechanism, a coupling is installed at the bottom of the lifting mechanism, an adjusting mechanism is installed at the bottom of the coupling, the adjusting mechanism comprises a fixed plate, a first motor, a driving gear and a protective cover, a second motor is installed at one side of the bottom of the fixed plate, a protective cover is installed at the top of the adjusting mechanism, a driving gear is rotatably installed inside the protective cover, a driven gear is installed at one side of the driving gear, an adjusting rod is installed at the bottom of the driven gear through the fixed plate, and a mounting mechanism is installed at the bottom of the adjusting rod;

[0005] The mounting mechanism includes a limit platform and a mounting plate, wherein the limit platform is installed on one side of the top of the mounting plate, a placement rack is rotatably installed between the limit platforms, a positioning plate is installed on the periphery of the adjusting rod, a third motor is installed on the bottom of the positioning plate, main shafts are installed at both ends of the third motor through a turntable, and the main shaft and the placement rack are connected by a connecting rod.

[0006] Preferably, the lifting mechanism comprises a connecting bolt, a connecting frame and an electric push rod, the bottom of the electric push rod is connected to the coupling, the top of the electric push rod is equipped with a connecting frame, and the connecting bolt is installed inside the connecting frame.

[0007] Preferably, the output end of the second motor passes through the fixed plate and is connected to the coupling, the first motor is installed on the top of the protective cover, the output end of the first motor is connected to the driving gear, and the first bearing matched with the driving gear is installed on the top of the fixed plate.

[0008] Preferably, the mounting mechanism further comprises an indicator light and a reset switch, the indicator light is mounted on one side of the mounting plate, and the reset switch is mounted on the other side of the top of the mounting plate.

[0009] Preferably, the top of the mounting plate is connected to the adjusting rod, and the top of the placement rack is provided with a mounting hole.

[0010] Preferably, bearing seats are installed at both ends of the third motor, and the bearing seats are connected to the positioning plates by bolts.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] By installing the adjustment mechanism and the installation mechanism, the second motor starts to rotate during use, and drives the fixing plate to rotate simultaneously during the rotation process, thereby changing the projection direction of the projector; the output end of the first motor drives the driving gear to rotate, and the driving gear drives the driven gear to rotate simultaneously during the rotation process; the adjustment rod drives the installation mechanism to rotate simultaneously during the rotation process of the driven gear, and then cooperates with the second motor to expand the activity range of the projector and improve the projection effect.

[0013] By installing a placement stand, the third motor drives the turntables at both ends to rotate simultaneously when in use. During the rotation of the turntable, the main shaft is used to drive the connecting rod to move. During the movement of the connecting rod, the placement stand is driven to rotate with the limit table as the center. After rotation, the projection angle of the projector can be changed according to the projection requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a bottom view of the utility model;

[0015] Figure 2 It is a three-dimensional diagram of the utility model;

[0016] Figure 3 It is the front view of the utility model;

[0017] Figure 4 It is a structural schematic diagram of the adjustment mechanism and the installation mechanism of the utility model;

[0018] Figure 5 It is a side structural schematic diagram of the placement rack and the second motor of the utility model.

[0019] In the figure: 1. lifting mechanism; 101. connecting bolt; 102. connecting frame; 103. electric push rod; 2. adjusting mechanism; 201. fixing plate; 202. first motor; 203. driving gear; 204. first bearing; 205. protective cover; 3. placing frame; 4. mounting hole; 5. mounting mechanism; 501. indicator light; 502. limit table; 503. mounting plate; 504. reset switch; 6. adjusting rod; 7. driven gear; 8. coupling; 9. second motor; 10. third motor; 11. turntable; 12. bearing seat; 13. bolt; 14. main shaft; 15. connecting rod; 16. positioning plate. DETAILED DESCRIPTION

[0020] It is easy to understand that according to the technical solution of the utility model, without changing the essential spirit of the utility model, a person skilled in the art can propose a variety of interchangeable structural modes and implementation modes. Therefore, the following specific implementation modes and drawings are only exemplary descriptions of the technical solution of the utility model, and should not be regarded as the entirety of the utility model or as a limitation or restriction to the technical solution of the utility model.

[0021] The utility model provides an adjustable multimedia exhibition hall projection device, which is exemplified as follows: Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the lifting mechanism 1 includes a lifting mechanism 1, a coupling 8 is installed at the bottom of the lifting mechanism 1, and the lifting mechanism 1 includes a connecting bolt 101, a connecting frame 102 and an electric push rod 103. The bottom of the electric push rod 103 is connected to the coupling 8, and the connecting frame 102 is installed on the top of the electric push rod 103. The connecting bolt 101 is installed inside the connecting frame 102; specifically, when in use, the connecting frame 102 is connected to the external structure by using the connecting bolt 101, and the device is hoisted on the top of the exhibition hall after the connection. After the electric push rod 103 is powered on, it can drive the coupling 8 to move up and down, so that the position of the projector can be adjusted according to needs;

[0022] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, an adjusting mechanism 2 is installed at the bottom of the coupling 8, and the adjusting mechanism 2 includes a fixed plate 201, a first motor 202, a driving gear 203 and a protective cover 205. A second motor 9 is installed on one side of the bottom of the fixed plate 201, and a protective cover 205 is installed on the top of the adjusting mechanism 2. The driving gear 203 is rotatably installed inside the protective cover 205, and a driven gear 7 is installed on one side of the driving gear 203. The bottom of the driven gear 7 passes through the fixed plate 201 and an adjusting rod 6 is installed. The bottom of the adjusting rod 6 is installed with a mounting mechanism 5, wherein a first bearing 204 adapted to the driving gear 203 is installed on the top of the fixed plate 201, and the adjusting rod 6 is rotatably connected to the fixed plate 201, and the driving gear 203 is meshed with the driven gear 7; the output end of the second motor 9 passes through the fixed plate 201. The first motor 202 is connected to the coupling 8, and the top of the protective cover 205 is installed with a first motor 202, and the output end of the first motor 202 is connected to the driving gear 203; specifically, the second motor 9 starts to rotate after being energized, because the second motor 9 is connected to the fixed plate 201 by a threaded bolt, and its output end is connected to the coupling 8 by a threaded bolt, during the rotation process, the fixed plate 201 will be driven to rotate at the same time, so as to change the projection direction of the projector, and the output end of the first motor 202 drives the driving gear 203 to rotate after being energized, and the driving gear 203 drives the driven gear 7 to rotate at the same time during the rotation process, and the driven gear 7 drives the mounting mechanism 5 to rotate at the same time during the rotation process by using the adjusting rod 6, and then cooperates with the second motor 9 to expand the activity range of the projector and improve the projection effect;

[0023] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, the mounting mechanism 5 includes a limit platform 502 and a mounting plate 503, the limit platform 502 is installed on one side of the top of the mounting plate 503, the placement rack 3 is rotatably installed between the limit platforms 502, the periphery of the adjustment rod 6 is installed with a positioning plate 16, the bottom of the positioning plate 16 is installed with a third motor 10, the two ends of the third motor 10 are installed with a spindle 14 through a turntable 11, the spindle 14 and the placement rack 3 are connected through a connecting rod 15, the mounting mechanism 5 also includes an indicator light 501 and a reset switch 504, the indicator light 501 is installed on one side of the mounting plate 503, and the reset switch 504 is installed on the other side of the top of the mounting plate 503; wherein, the reset switch 504 is a press switch, and when the placement rack 3 is placed flat, the reset switch 504 disconnects the external power supply to the indicator light 501 The power provided, the connecting rod 15 is rotatably connected with the main shaft 14 and the placement frame 3; specifically, before use, the projector is stably installed on the placement frame 3, and the third motor 10 is powered on to drive the turntables 11 at both ends to rotate simultaneously. During the rotation of the turntable 11, the main shaft 14 is used to drive the connecting rod 15 to move, and during the movement of the connecting rod 15, the placement frame 3 is driven to rotate around the limit table 502 as the center. After the rotation, the projection angle of the projector can be changed according to the projection requirements. When the placement frame 3 rotates, the reset switch 504 is automatically reset, so that the external power supply is connected to the indicator light 501, and the indicator light 501 is on, so that the user can judge whether the projector is in a parallel state with the mounting plate 503 to meet the projection effect of the multimedia exhibition hall;

[0024] like Figure 2 , Figure 3 and Figure 5 As shown, the top of the mounting plate 503 is connected to the adjusting rod 6, a mounting hole 4 is provided on the top of the placement frame 3, bearing seats 12 are installed at both ends of the third motor 10, and the bearing seats 12 and the positioning plate 16 are connected by bolts 13; specifically, the mounting hole 4 can be used to increase the stability between the projector and the placement frame 3 during use, and the bearing seat 12 and the positioning plate 16 are connected by bolts 13. The bearing seat 12 can reduce the amplitude generated during the rotation process without affecting the rotation of the output end of the third motor 10.

[0025] The working principle of this embodiment is as follows: before use, the connecting frame 102 is connected to the external structure by using the connecting bolt 101. After the connection, the device is hoisted on the top of the exhibition hall, and the projector is stably installed on the placement frame 3. After the electric push rod 103 is energized, it can drive the coupling 8 to rise and fall, so that the position of the projector can be adjusted according to needs. After the second motor 9 is energized, it starts to rotate. Since the second motor 9 is connected to the fixed plate 201 by a threaded bolt, and its output end is connected to the coupling 8 by a threaded bolt, during the rotation process, it will drive the fixed plate 201 to rotate at the same time, thereby changing the projection direction of the projector. After the first motor 202 is energized, the output end drives the driving gear 203 to rotate, and during the rotation of the driving gear 203, it drives the driven gear 7 to rotate at the same time. During the rotation of the driven gear 7, the adjusting rod 6 is used to drive the mounting mechanism 5 to rotate at the same time, and the activity range of the projector is expanded in cooperation with the second motor 9. After the third motor 10 is energized, it drives the turntables 11 at both ends to rotate at the same time. During the rotation of the turntable 11, the main shaft 14 is used to drive the connecting rod 15 to move. During the movement of the connecting rod 15, the placement frame 3 is driven to rotate around the limit table 502 as the center. After the rotation, the projection angle of the projector can be changed according to the projection requirements. When the placement frame 3 rotates, the reset switch 504 is automatically reset, so that the external power supply is connected to the indicator light 501, and the indicator light 501 is on, so that the user can judge whether the projector is in a parallel state with the mounting plate 503 to meet the projection effect of the multimedia exhibition hall.

[0026] The above-mentioned specific embodiments are only several preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

Claims

1. An adjustable multimedia exhibition hall projection device, characterized in that: The invention comprises a lifting mechanism (1), wherein a coupling (8) is installed at the bottom of the lifting mechanism (1), an adjusting mechanism (2) is installed at the bottom of the coupling (8), the adjusting mechanism (2) comprises a fixing plate (201), a first motor (202), a driving gear (203) and a protective cover (205), a second motor (9) is installed at one side of the bottom of the fixing plate (201), a protective cover (205) is installed at the top of the adjusting mechanism (2), a driving gear (203) is rotatably installed inside the protective cover (205), a driven gear (7) is installed at one side of the driving gear (203), an adjusting rod (6) is installed at the bottom of the driven gear (7) passing through the fixing plate (201), and a mounting mechanism (5) is installed at the bottom of the adjusting rod (6); The mounting mechanism (5) comprises a limit platform (502) and a mounting plate (503); the limit platform (502) is mounted on one side of the top of the mounting plate (503); a placement rack (3) is rotatably mounted between the limit platforms (502); a positioning plate (16) is mounted on the periphery of the adjustment rod (6); a third motor (10) is mounted on the bottom of the positioning plate (16); a main shaft (14) is mounted on both ends of the third motor (10) via a rotating disk (11); and the main shaft (14) is connected to the placement rack (3) via a connecting rod (15).

2. The adjustable multimedia exhibition hall projection device according to claim 1, characterized in that: The lifting mechanism (1) comprises a connecting bolt (101), a connecting frame (102) and an electric push rod (103); the bottom of the electric push rod (103) is connected to a coupling (8); the top of the electric push rod (103) is mounted with a connecting frame (102); and the interior of the connecting frame (102) is mounted with a connecting bolt (101).

3. The adjustable multimedia exhibition hall projection device according to claim 1, characterized in that: The output end of the second motor (9) passes through the fixed plate (201) and is connected to the coupling (8); the first motor (202) is installed on the top of the protective cover (205); the output end of the first motor (202) is connected to the driving gear (203); and the first bearing (204) adapted to the driving gear (203) is installed on the top of the fixed plate (201).

4. The adjustable multimedia exhibition hall projection device according to claim 1, characterized in that: The mounting mechanism (5) further comprises an indicator light (501) and a reset switch (504); the indicator light (501) is mounted on one side of the mounting plate (503), and the reset switch (504) is mounted on the other side of the top of the mounting plate (503).

5. The adjustable multimedia exhibition hall projection device according to claim 4, characterized in that: The top of the mounting plate (503) is connected to the adjusting rod (6), and the top of the placement rack (3) is provided with a mounting hole (4).

6. An adjustable multimedia exhibition hall projection device according to any one of claims 1 to 5, characterized in that: Bearing seats (12) are installed at both ends of the third motor (10), and the bearing seats (12) and the positioning plate (16) are connected via bolts (13).

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