Multi-angle rotating projection device

Abstract

The utility model discloses a kind of multi-angle rotating projection devices, it is related to projector technical field, including projector, further include: clamping component, for the projection device is fixed on support surface;Lifting assembly, it is set on the clamping component, for driving the projector to carry out lifting movement;Rotary component, it is set on the lifting assembly, for driving the projector to carry out horizontal direction rotation.The utility model is through setting clamping component, through rotating handle operating screw rod, laborsaving and accurate.Using person can be intuitively controlled the tightness degree of clamping by rotating number, avoid damaging equipment due to excessive force, simultaneously chuck can be rotatably arranged at the end of screw rod, prevent rotating friction piano surface, cause scratch to appear on the surface of piano cover, and by cooperation between L-shaped rod and spring, chuck two sides can be abutted to the side of piano cover, avoid chuck autorotation.

Description

Technical Field

[0001] This utility model relates to the field of projector technology, specifically a multi-angle rotating projection device. Background Technology

[0002] In piano teaching, especially in group lessons or observation sessions, teachers often need to demonstrate details of sheet music, fingering, or playing techniques to students. Traditional teaching methods involve the teacher demonstrating personally or using a separate projector to project the content onto a wall or screen.

[0003] The existing patent (authorization announcement number: CN222416949U) discloses a multimedia teaching projection device. The key technical points of the solution are: by positioning the projection lens at a suitable projection height, the projection lens can be moved to its highest position when not in use, which can effectively prevent damage caused by collision. By adjusting the height and rotation angle of the mounting box, the mounting box can drive the projection lens to rotate to the optimal projection state. In daily use, the dust cover can shield the outside of the mounting box and the projection lens, which can effectively reduce the dust on the outside of the mounting box and the projection lens and reduce the cleaning burden on personnel.

[0004] However, the above technical solutions still have certain drawbacks. In piano teaching, using a projector supported by a tripod requires additional floor space, which can be inconvenient in a crowded practice room. Furthermore, the equipment has poor stability, and even a slight touch can cause the projected image to shift. Simply placing the projector on the top of the piano is not only unsafe, but also prone to slipping or shaking due to vibrations during piano playing. Therefore, a multi-angle rotating projection device is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a projection device that rotates at multiple angles to solve the problems in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A multi-angle rotating projection device includes a projector and further includes: A clamping assembly for fixing the projection device to the support surface; A lifting assembly is mounted on the clamping assembly and is used to drive the projector to move up and down. A rotating component, mounted on the lifting component, is used to drive the projector to rotate horizontally; An adjustment component, mounted on the rotating component, is used to mount and drive the projector to adjust its pitch angle; The clamping assembly includes a mounting frame, a screw, and a chuck. The screw passes through the mounting frame and is rotatable relative to it. One end of the screw is provided with a rotating handle, and the other end is rotatably connected to the chuck.

[0007] Based on the above technical solutions, this utility model also provides the following optional technical solutions: As a further embodiment of this utility model: the lifting assembly includes a frame fixedly installed on the side of the mounting bracket, a rotating handle is rotatably installed on the top of the frame, the rotating handle is located on the top of the frame and connected to the threaded rod, the threaded rod is threadedly engaged with the frame, and a suction cup is rotatably provided at the bottom end of the threaded rod.

[0008] As a further embodiment of this utility model: the rotating assembly includes a first fixing member fixed at the suction cup, a first rotating plate and a vertical rotating mechanism, the first fixing member being disposed at the bottom end of the threaded rod, and the first rotating plate being hinged to the first fixing member.

[0009] As a further embodiment of this utility model: the adjustment component includes a base, a drive motor and a transmission mechanism. The base is fixed on the second rotating plate, the output end of the drive motor is connected to a rotating seat through the transmission mechanism, and the projector is mounted on the rotating seat.

[0010] As a further improvement of this utility model: extension blocks are provided on both sides of the clamp, an L-shaped rod is slidably installed in the extension block, and a spring is provided between the L-shaped rod and the extension block.

[0011] As a further embodiment of this utility model: the vertical rotation mechanism includes a second fixing member, a threaded member, and a second rotating plate. The second fixing member is hinged to the first rotating plate, and the threaded member is fixedly connected to the second fixing member, with its end abutting against the second rotating plate.

[0012] As a further embodiment of this utility model: the transmission mechanism includes a worm and a worm wheel, the worm is connected to the output end of the drive motor, the worm wheel meshes with the worm and is coaxially and fixedly connected to the rotating seat.

[0013] As a further improvement of this utility model, the projector and the rotating base are detachably connected.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model features a clamping assembly that operates the screw via a rotating handle, making it labor-saving and precise. Users can intuitively control the clamping tightness by rotating the screw a few times, preventing damage to the equipment due to excessive force. The chuck is rotatably positioned at the end of the screw to prevent rotational friction against the piano surface, thus avoiding scratches on the piano lid. Furthermore, the L-shaped rod and spring work together to ensure that both sides of the chuck abut against the sides of the piano lid, preventing the chuck from rotating on its own.

[0015] 2. By setting up an adjustment component, this utility model allows teachers to stand at the front of the classroom and remotely fine-tune the projected image in a piano teaching scenario, without having to run back and forth to the piano to operate it manually, thus improving the smoothness and convenience of teaching. At the same time, the self-locking characteristics of the worm gear prevent the projector from shaking, providing a better learning experience. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the clamping assembly of this utility model; Figure 3 For the present utility model Figure 2 A schematic diagram of the structure of the enlarged view at point A in the middle; Figure 4 This is a schematic diagram of the lifting assembly of this utility model; Figure 5 This is a schematic diagram of the structure of the rotating component of this utility model; Figure 6 This is a schematic diagram of the structure of the adjustment component of this utility model.

[0017] Figure reference numerals: 1. Clamping assembly; 2. Lifting assembly; 3. Rotating assembly; 4. Adjusting assembly; 11. Mounting bracket; 12. Rotating handle; 13. Screw; 14. Chuck; 15. L-shaped rod; 16. Spring; 21. Frame; 22. Rotating handle; 23. Threaded rod; 24. Suction cup; 31. First fixing component; 32. First rotating plate; 33. Second fixing component; 34. Threaded component; 35. Second rotating plate; 41. Base; 42. Drive motor; 43. Worm gear; 44. Worm wheel; 45. Rotating seat; 46. Projector. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0019] In one embodiment, such as Figures 1-6As shown, a multi-angle rotating projection device includes a projector 46, and further includes: a clamping assembly 1 for fixing the projection device to a support surface; a lifting assembly 2 disposed on the clamping assembly 1 for driving the projector 46 to move up and down; a rotating assembly 3 disposed on the lifting assembly 2 for driving the projector 46 to rotate horizontally; and an adjusting assembly 4 disposed on the rotating assembly 3 for mounting and driving the projector 46 to adjust its pitch angle. In this embodiment, the entire device is first securely fixed to a support surface, such as the open lid of a piano, using clamping component 1 to ensure stability. After clamping, operating lifting component 2 allows all components above it to move vertically up and down. Once the height is determined, rotating component 3 allows the projector 46 to rotate horizontally. This function allows the projection light to sweep horizontally, precisely projecting the image onto the center of the target area. Finally, adjusting component 4 adjusts the direction the projector 46 faces for targeted projection.

[0020] In one embodiment, such as Figure 2 and Figure 3 As shown, the clamping assembly 1 includes a mounting bracket 11, a screw 13, and a chuck 14. The screw 13 passes through the mounting bracket 11 and is rotatable relative to it. One end of the screw 13 is provided with a rotating handle 12, and the other end is rotatably connected to the chuck 14. Extension blocks are provided on both sides of the chuck 14. An L-shaped rod 15 is slidably installed in the extension block, and a spring 16 is provided between the L-shaped rod 15 and the extension block. When the mounting bracket 11 is placed on the edge of the piano lid, the rotating handle 12 is rotated clockwise. The moving screw 13 rotates and moves downward in the threaded hole of the mounting bracket 11. The collet 14 at the lower end of the screw 13 descends accordingly until it contacts the surface of the piano lid. Since the collet 14 and the screw 13 are rotatably connected, after the collet 14 contacts the surface of the piano lid, its bottom surface can always remain parallel and in contact with the surface of the piano lid, and will not rotate with the rotation of the screw 13, thus avoiding scratching the surface. At the same time, the L-shaped rod 15 will always maintain pressure on the edge of the piano through the spring 16 to prevent the collet 14 from rotating excessively and causing unstable clamping.

[0021] In one embodiment, such as Figure 4As shown, the lifting assembly 2 includes a frame 21 fixedly installed on the side of the mounting bracket 11. A rotating handle 22 is rotatably installed on the top of the frame 21. The rotating handle 22 is located on the top of the frame 21 and connected to the threaded rod 23. The threaded rod 23 is threadedly engaged with the frame 21, and a suction cup 24 is rotatably installed at the bottom end of the threaded rod 23. The user manually rotates the rotating handle 22 installed on the top of the frame 21. The rotation of the rotating handle 22 directly drives the threaded rod 23 fixedly connected to it to rotate. Through the up and down movement of the threaded rod 23, the rotating assembly 3 and the adjusting assembly 4 are driven to rise and fall synchronously.

[0022] In one embodiment, such as Figure 5 As shown, the rotating assembly 3 includes a first fixing member 31 fixed at the suction cup 24, a first rotating plate 32 and a vertical rotation mechanism. The first fixing member 31 is disposed at the bottom end of the threaded rod 23, and the first rotating plate 32 is hinged to the first fixing member 31. The first rotating plate 32 rotates along the first fixing member 31 as a reference plane, thereby allowing for horizontal adjustment, and the second rotating plate 35 is limited and fixed by its own pressure.

[0023] In one embodiment, such as Figure 5 As shown, the vertical rotation mechanism includes a second fixing member 33, a threaded member 34, and a second rotating plate 35. The second fixing member 33 is hinged to the first rotating plate 32, and the threaded member 34 is fixedly connected to the second fixing member 33, with its end abutting against the second rotating plate 35. When the elevation angle needs to be adjusted, the threaded member 34 is rotated, which will adjust the angle of the second rotating plate 35 by rotating the second fixing member 33, thereby causing the adjustment component 4 to change its angle relative to the horizontal plane.

[0024] In one embodiment, such as Figure 6 As shown, the adjustment component 4 includes a base 41, a drive motor 42, and a transmission mechanism. The base 41 is fixed on the second rotating plate 35. The output end of the drive motor 42 is connected to a rotating seat 45 through the transmission mechanism. The projector 46 is mounted on the rotating seat 45. When the angle of the second rotating plate 35 changes, the angle of the adjustment component 4 will also change accordingly.

[0025] In one embodiment, such as Figure 6As shown, the transmission mechanism includes a worm gear 43 and a worm wheel 44. The worm gear 43 is connected to the output end of the drive motor 42. The worm wheel 44 meshes with the worm gear 43 and is coaxially and fixedly connected to the rotating seat 45. The projector 46 is detachably connected to the rotating seat 45. The drive motor 42 drives the worm gear 43 to drive the worm wheel 44 to rotate the rotating seat 45. The worm wheel 44 transmission has a large reduction ratio and reverse self-locking characteristics, which can naturally lock the angle without the need for an additional braking device. The projection direction of the projector 46 can be adjusted by rotating the worm wheel 44. The projected image can be remotely fine-tuned from the front of the classroom without having to run back and forth to the piano to operate it manually, thus improving the smoothness and convenience of teaching.

[0026] The above embodiment discloses a multi-angle rotating projection device, wherein the mounting bracket 11 of the clamping component 1 is clamped on the edge of the piano lid, the rotating handle 12 is rotated and fixed to the surface of the piano lid by the screw 13 and the buffered clamp 14, the rotating handle 22 at the top of the lifting component 2 is rotated, which drives the threaded rod 23 to rise and fall, thereby changing the height of the projector 46 as a whole, the vertical adjustment mechanism of the rotating component 3 is operated to push the first rotating plate 32 to rotate left and right in the horizontal plane, the threaded part 34 of the vertical rotation mechanism is operated to push the second rotating plate 35 to perform pitch movement, the drive motor 42 of the adjustment component 4 is controlled by remote control or button, the motor drives the rotating seat 45 and the projector 46 to perform pitch angle fine adjustment through the worm gear 44 and worm 43 transmission mechanism.

[0027] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A multi-angle rotating projection device comprising a projector (46), characterized in that, Also includes: Clamping assembly (1) for fixing the projection device to the support surface; The lifting assembly (2) is mounted on the clamping assembly (1) and is used to drive the projector (46) to move up and down. A rotating component (3) is mounted on the lifting component (2) and is used to drive the projector (46) to rotate horizontally. An adjustment component (4) is mounted on the rotating component (3) and is used to mount and drive the projector (46) to adjust the pitch angle; The clamping assembly (1) includes a mounting frame (11), a screw (13) and a chuck (14). The screw (13) passes through the mounting frame (11) and can rotate relative to it. One end of the screw (13) is provided with a rotating handle (12), and the other end is rotatably connected to the chuck (14).

2. The multi-angle rotating projection device according to claim 1, wherein, The lifting assembly (2) includes a frame (21) fixedly installed on the side of the mounting frame (11). A rotating handle (22) is rotatably installed on the top of the frame (21). The rotating handle (22) is located on the top of the frame (21) and connected to a threaded rod (23). The threaded rod (23) is threadedly engaged with the frame (21), and a suction cup (24) is rotatably installed at the bottom end of the threaded rod (23).

3. A multi-angle rotating projection device according to claim 2, wherein, The rotating assembly (3) includes a first fixing member (31) fixed at the suction cup (24), a first rotating plate (32) and a vertical rotating mechanism. The first fixing member (31) is located at the bottom end of the threaded rod (23), and the first rotating plate (32) is hinged to the first fixing member (31).

4. A multi-angle rotating projection device according to claim 3, wherein, The adjustment component (4) includes a base (41), a drive motor (42) and a transmission mechanism. The base (41) is fixed on the second rotating plate (35). The output end of the drive motor (42) is connected to the rotating seat (45) through the transmission mechanism. The projector (46) is mounted on the rotating seat (45).

5. The multi-angle rotating projection device of claim 1, wherein, The clamp (14) has extension blocks on both sides, and an L-shaped rod (15) is slidably installed in the extension block. A spring (16) is provided between the L-shaped rod (15) and the extension block.

6. The multi-angle rotating projection device of claim 3, wherein, The vertical rotation mechanism includes a second fixing member (33), a threaded member (34), and a second rotating plate (35). The second fixing member (33) is hinged to the first rotating plate (32), and the threaded member (34) is fixedly connected to the second fixing member (33), with its end abutting against the second rotating plate (35).

7. The multi-angle rotating projection device of claim 4, wherein, The transmission mechanism includes a worm (43) and a worm wheel (44). The worm (43) is connected to the output end of the drive motor (42). The worm wheel (44) meshes with the worm (43) and is coaxially fixedly connected to the rotating seat (45).

8. A multi-angle rotating projection device according to claim 1, characterized in that, The projector (46) is detachably connected to the rotating base (45).

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