Multimedia photoelectric projection device

Abstract

The utility model provides a multimedia photoelectric projection device which comprises a mounting plate, a transmission mechanism is arranged at the center point of the top of the mounting plate through a bearing, a key groove at one end of the transmission mechanism is connected with a first motor, and the first motor and the mounting plate are fixedly mounted. And the other end of the transmission mechanism penetrates through the mounting plate and is in key groove connection with a connecting shaft, and a first fixing frame is fixedly mounted at the bottom end of the connecting shaft. According to the multimedia photoelectric projection device provided by the utility model, the angle needs to be adjusted according to actual use conditions in the use process of the multimedia projection device, a projected picture is ensured to be more real, the first motor works to drive the transmission mechanism to rotate, and the transmission mechanism rotates to drive the connecting shaft to rotate, so that the angle is adjusted. The connecting shaft rotates to drive the first fixing frame to rotate, then the angle of the projection device body is changed, adjustment according to requirements is facilitated, the second motor works to drive the second fixing frame to rotate, then the angle of the projection device body is changed, and the structure is simple.

Description

Technical Field

[0001] The utility model relates to the field of optoelectronic projection devices, in particular to a multimedia optoelectronic projection device. Background Art

[0002] A projector, also known as a projection machine, is a device that can project images or videos onto a screen. It can be connected to a computer, VCD, DVD, BD, game console, DV, etc. through different interfaces to play corresponding video signals. Projectors are widely used in homes, offices, schools, and entertainment venues. According to different working methods, there are different types such as CRT, LCD, DLP, 3LCD, etc.

[0003] However, in the process of using the existing optoelectronic projection devices in the market, it is not convenient to change the angle of the projection device according to the specific usage situation, resulting in a fixed projection position of the projection device. When it is necessary to change the projection position, manual adjustment is required, which has low efficiency.

[0004] Therefore, it is necessary to provide a multimedia optoelectronic projection device to solve the above technical problems. Summary of the Invention

[0005] The utility model provides a multimedia optoelectronic projection device, which solves the problem that in the process of using the existing optoelectronic projection devices in the market, it is not convenient to change the angle of the projection device according to the specific usage situation, resulting in a fixed projection position of the projection device. When it is necessary to change the projection position, manual adjustment is required, which has low efficiency.

[0006] The utility model provides a multimedia optoelectronic projection device, including: a mounting plate. At the center point of the top of the mounting plate, a transmission mechanism is provided through a bearing. One end of the transmission mechanism is key-connected to a first motor, and the first motor is fixedly installed on the mounting plate. The other end of the transmission mechanism penetrates the mounting plate and is key-connected to a connecting shaft. The bottom end of the connecting shaft is fixedly installed with a first fixing frame. Inside the first fixing frame, a second fixing frame is rotatably installed through a bearing. One end of the second fixing frame penetrates the first fixing frame and is key-connected to a second motor fixedly installed with the first fixing frame.

[0007] Preferably, a positive and reverse screw rod is rotatably installed through a bearing between the two sides inside the second fixing frame. One end of the positive and reverse screw rod penetrates the second fixing frame and is key-connected to a first knob.

[0008] Preferably, the outer part of the positive and reverse screw rod is meshed with a moving frame, and the number of moving frames is two. A limiting rod is fixedly installed between the two sides inside the second fixing frame and on one side of the positive and reverse screw rod. The two moving frames are slidably installed with the limiting rod.

[0009] Preferably, a projection device main body is placed between the two moving frames. Threaded rods are connected to the tops of the two moving frames. Second knobs are keyway-connected to the tops of the two threaded rods. Lower pressing plates are rotatably installed at the bottoms of the two threaded rods.

[0010] Preferably, connecting rods are fixedly installed at the four corners of the top of the mounting plate, and the number of connecting rods is four. Fixing plates are fixedly installed at the tops of the four connecting rods.

[0011] Preferably, bolts penetrate through the tops of the four fixing plates, and the number of bolts is multiple.

[0012] Compared with the related art, a multimedia optoelectronic projection device provided by the present utility model has the following beneficial effects:

[0013] During the use of the multimedia projection device, the angle needs to be adjusted according to the actual use situation to ensure that the projected image is more realistic. The first motor works to drive the transmission mechanism to rotate. The transmission mechanism rotates to drive the connecting shaft to rotate. The connecting shaft rotates to drive the first fixing frame to rotate, thereby changing the angle of the projection device main body, which is convenient for adjustment according to requirements. The second motor works to drive the second fixing frame to rotate, thereby changing the angle of the projection device main body. The structure is simple and convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic structural diagram of a preferred embodiment of a multimedia optoelectronic projection device provided by the present utility model;

[0015] Figure 2 For Figure 1 the schematic installation structure diagram of the limiting rod shown;

[0016] Figure 3 For Figure 1 the schematic installation structure diagram of the lower pressing plate shown.

[0017] In the figure: 1, mounting plate; 2, transmission mechanism; 3, first motor; 4, connecting shaft; 5, first fixing frame; 6, second fixing frame; 7, second motor; 8, positive and negative screw rod; 9, first knob; 10, moving frame; 11, limiting rod; 12, projection device main body; 13, threaded rod; 14, second knob; 15, lower pressing plate; 16, connecting rod; 17, fixing plate; 18, bolt. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The technical solutions of the present utility model will be further specifically described below through embodiments and in conjunction with the drawings.

[0019] Embodiment: A multimedia optoelectronic projection device, as Figures 1-3As shown in the figure, it includes: a mounting plate 1. At the center point of the top of the mounting plate 1, a transmission mechanism 2 is provided through a bearing. One end of the transmission mechanism 2 is keyed to a first motor 3. The first motor 3 is fixedly installed with the mounting plate 1. The other end of the transmission mechanism 2 penetrates through the mounting plate 1 and is keyed to a connecting shaft 4. The bottom end of the connecting shaft 4 is fixedly installed with a first fixing frame 5. Inside the first fixing frame 5, a second fixing frame 6 is rotatably installed through a bearing. One end of the second fixing frame 6 penetrates through the first fixing frame 5 and is keyed to a second motor 7 fixedly installed with the first fixing frame 5. During the use of the multimedia projection device, the angle needs to be adjusted according to the actual use situation to ensure that the projected image is more real. By the operation of the first motor 3, the transmission mechanism 2 is driven to rotate. The rotation of the transmission mechanism 2 drives the connecting shaft 4 to rotate. The rotation of the connecting shaft 4 drives the first fixing frame 5 to rotate, thereby changing the angle of the projection device main body 12, which is convenient for adjustment according to requirements. By the operation of the second motor 7, the second fixing frame 6 is driven to rotate, thereby changing the angle of the projection device main body 12. The structure is simple and convenient to use.

[0020] Inside the second fixing frame 6, a left - right screw 8 is rotatably installed through a bearing between the two sides. One end of the left - right screw 8 penetrates through the second fixing frame 6 and is keyed to a first knob 9. The outer part of the left - right screw 8 is meshed with a moving frame 10, and the number of moving frames 10 is two. Inside the second fixing frame 6, on one side of the left - right screw 8 between the two sides, a limiting rod 11 is fixedly installed. The two moving frames 10 are slidably installed with the limiting rod 11. Between the two moving frames 10, a projection device main body 12 is placed. The tops of the two moving frames 10 are both threadedly connected with lead screws 13. The tops of the two lead screws 13 are both keyed to a second knob 14. The bottoms of the two lead screws 13 are both rotatably installed with a lower pressing plate 15. When installing the projection device main body 12, first place the projection device main body 12 between the two moving frames 10. Rotate the first knob 9. The first knob 9 drives the left - right screw 8 to rotate. The rotation of the left - right screw 8 causes the two moving frames 10 to slide along the length direction of the limiting rod 11. The two moving frames 10 move closer to each other, thereby effectively clamping the projection device main body 12. Then rotate the second knob 14. The second knob 14 drives the lead screw 13 to rotate. The rotation of the lead screw 13 drives the lower pressing plate 15 to move downward. The bottom of the lower pressing plate 15 is in contact with the top of the projection device main body 12, further pressing and fixing the projection device main body 12, improving the stability.

[0021] At the four corners of the top of the mounting plate 1, four connecting rods 16 are fixedly installed, and the number of connecting rods 16 is four. At the tops of the four connecting rods 16, four fixing plates 17 are fixedly installed. Through the four fixing plates 17, multiple bolts 18 penetrate. The bolts 18 effectively fix the fixing plates 17 to the roof. The connecting function of the four connecting rods 16 improves the stability of the mounting plate 1, and thus improves the stability of the projection device.

[0022] The working principle of a multimedia optoelectronic projection device provided by the present utility model is as follows:

[0023] First step: The fixing plate 17 is effectively fixed to the roof through the bolt 18. The connection of the four connecting rods 16 improves the stability of the mounting plate 1, and thus improves the stability of the projection device. When installing the projection device main body 12, first place the projection device main body 12 between the two moving frames 10. Rotate the first knob 9, and the first knob 9 drives the forward and reverse screw rod 8 to rotate. The rotation of the forward and reverse screw rod 8 causes the two moving frames 10 to slide along the length direction of the limiting rod 11, and the two moving frames 10 approach each other, thereby effectively clamping the projection device main body 12. Then rotate the second knob 14, and the second knob 14 drives the lead screw 13 to rotate. The rotation of the lead screw 13 drives the lower pressing plate 15 to move downward, and the bottom of the lower pressing plate 15 fits against the top of the projection device main body 12, further pressing and fixing the projection device main body 12, improving the stability.

[0024] Second step: During the use of the multimedia projection device, the angle needs to be adjusted according to the actual use situation to ensure that the projected image is more realistic. The first motor 3 works to drive the transmission mechanism 2 to rotate. The rotation of the transmission mechanism 2 drives the connecting shaft 4 to rotate. The rotation of the connecting shaft 4 drives the first fixing frame 5 to rotate, thereby changing the angle of the projection device main body 12, which is convenient for adjustment according to requirements. The second motor 7 works to drive the second fixing frame 6 to rotate, thereby changing the angle of the projection device main body 12. The structure is simple and convenient to use.

[0025] Finally, it should be pointed out that the above embodiments are only relatively representative examples of the present utility model. Obviously, the present utility model is not limited to the above embodiments and can have many variations. Any simple modification, equivalent change, and modification made to the above embodiments based on the technical essence of the present utility model shall be considered to fall within the protection scope of the present utility model.

Claims

1. A multimedia optoelectronic projection device, comprising: The mounting plate (1) is characterized in that: a transmission mechanism (2) is provided at the top center point of the mounting plate (1) through a bearing, one end of the transmission mechanism (2) is connected to a first motor (3) through a keyway, the first motor (3) is fixedly mounted on the mounting plate (1), the other end of the transmission mechanism (2) passes through the mounting plate (1) and is connected to a connecting shaft (4) through the keyway, a first fixing frame (5) is fixedly mounted on the bottom end of the connecting shaft (4), a second fixing frame (6) is rotatably mounted inside the first fixing frame (5) through a bearing, one end of the second fixing frame (6) passes through the first fixing frame (5) and is connected to a second motor (7) fixedly mounted on the first fixing frame (5) through the keyway.

2. A multimedia optoelectronic projection device according to claim 1, characterized in that: A forward and reverse screw rod (8) is rotatably mounted between the two sides of the second fixing frame (6) via a bearing, one end of the forward and reverse screw rod (8) passes through the second fixing frame (6) and a first knob (9) is connected to the keyway.

3. A multimedia optoelectronic projection device according to claim 2, characterized in that: The outside of the forward and reverse screw rods (8) are meshedly connected with a movable frame (10), and the number of movable frames (10) is two. A limit rod (11) is fixedly installed between the two sides of the inside of the second fixed frame (6) and on one side of the forward and reverse screw rods (8). The two movable frames (10) and the limit rod (11) are slidably installed. A projection device body (12) is placed between the two movable frames (10). The tops of the two movable frames (10) are both threadedly connected with a screw rod (13). The tops of the two screw rods (13) are both keyedly connected with a second knob (14). The bottoms of the two screw rods (13) are both rotatably installed with a lower pressure plate (15).

4. A multimedia optoelectronic projection device according to claim 3, characterized in that: Connecting rods (16) are fixedly mounted at the four corners of the top of the mounting plate (1), and the number of the connecting rods (16) is four. A fixing plate (17) is fixedly mounted on the top of the four connecting rods (16).

5. A multimedia optoelectronic projection device according to claim 4, characterized in that: Bolts (18) are passed through the tops of the four fixing plates (17), and the number of the bolts (18) is multiple.

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