A projection device for computer video playback

CN224665695UActive Publication Date: 2026-08-21MAOMING SHENLAN COMPUTER CO LTD
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Patent Information

Application Number
CN202521574310.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-07-28
Publication Date
2026-08-21
Estimated Expiration
2035-07-28

AI Technical Summary

Technical Problem

[0003]在计算机使用过程中,为了方便将电脑屏幕上的视频内容投射到大屏幕上,使得信息能够更广泛地共享和交流,需要使用到投影仪,投影仪在长时间使用后,内部光学器件会因静电吸附空气中的灰尘,灰尘堆积会降低光学元件的透光率,导致画面亮度下降、对比度变差,甚至出现色斑或暗角,为了提高投影仪的投影效果,需要定期对投影仪进行清理维护,现有投影仪采用固定支架安装在天花板底部,在进行拆卸维护时,需要使用梯子等工具进行拆卸工作,在高处进行拆卸的过程存在安全隐患,不便于对投影仪进行清理维护

Benefits of technology

[0015]本实用新型通过设置投影装置、安装板、投影仪和安装组件等结构部件,通过投影装置进行视频投影播放,通过安装组件将投影仪固定在天花板底部,通过调节组件对投影仪进行旋转调节,通过固定组件使投影仪在安装板的底部固定稳定,达到了便于对投影仪进行拆卸维护的效果。

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Abstract

The utility model relates to computer technical field, the utility model discloses a kind of projection equipment of computer video play, including projection device and installation component, the projection device includes mounting plate and projector, the projector is installed in the bottom of mounting plate, the installation component includes fixed box, winding motor, winding rod and tow rope, the bottom of winding motor is fixedly connected with the bottom inside fixed box.
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Description

Technical Field

[0001] This utility model belongs to the field of computer technology, and in particular relates to a projection device for computer video playback. Background Technology

[0002] A computer is a modern intelligent electronic device that can run according to a program and automatically and quickly process massive amounts of data. It is commonly known as a "computer". It can perform numerical calculations and logical calculations, and also has storage and memory functions. It plays a vital role in all areas of human society.

[0003] During computer use, projectors are needed to project video content from the computer screen onto a large screen for wider information sharing and communication. After prolonged use, the internal optical components of a projector can attract dust from the air due to static electricity. Dust accumulation reduces the light transmittance of the optical components, leading to decreased screen brightness, poor contrast, and even color spots or dark corners. To improve the projection effect, projectors need to be cleaned and maintained regularly. Existing projectors are mounted on fixed brackets at the bottom of the ceiling. Disassembly and maintenance require the use of ladders and other tools, which poses safety hazards at heights and makes cleaning and maintenance inconvenient. Utility Model Content

[0004] In view of the problems existing in the prior art, the present invention provides a computer video playback projection device that can overcome the above problems or at least partially solve the above problems.

[0005] This utility model is implemented as follows: a projection device for computer video playback includes a projection unit and an installation assembly. The projection unit includes a mounting plate and a projector. The projector is mounted on the bottom of the mounting plate. The installation assembly includes a fixing box, a winding motor, a winding rod, and a traction rope. The bottom of the winding motor is fixedly connected to the bottom of the inside of the fixing box. The left side of the surface of the winding rod is movably connected to the left side of the inside of the fixing box. The left side of the output end of the winding motor is fixedly connected to the right side of the winding rod. The top end of the traction rope is fixedly connected to the surface of the winding rod. The bottom of the traction rope is fixedly connected to the inside of the mounting plate.

[0006] The projection device is used for video projection and playback;

[0007] The mounting assembly is used to secure the projector to the bottom of the ceiling.

[0008] To improve the stability of the mounting plate, preferably, fixing rods are fixedly connected to both the left and right sides of the bottom of the fixing box, and the bottom of both fixing rods are movably connected to the top of the mounting plate. An adjusting block is movably connected to the bottom of the fixing box, and the surface of the adjusting block is inserted into the interior of the mounting plate. An adjusting component is provided inside the fixing box, and fixing components are provided on both the left and right sides of the bottom of the mounting plate. The two fixing rods limit the two sides of the top of the mounting plate to prevent the mounting plate from tilting, thereby improving the stability of the mounting plate.

[0009] To prevent the projector from being misaligned during installation, preferably, the adjustment assembly includes an adjustment motor, a first gear, and a second gear. The top of the adjustment motor is fixedly connected to the top of the interior of the mounting box. The surface of the first gear meshes with the surface of the output end of the adjustment motor. The top of the second gear is fixedly connected to the bottom of the first gear. The surface of the second gear meshes with the interior of the adjustment block. During installation, the adjustment block is inserted into the mounting plate. The adjustment motor drives the first gear to rotate. During the rotation of the first gear, the second gear drives the adjustment block to rotate. During the rotation of the adjustment block, the mounting plate drives the projector to rotate and adjust, thereby preventing the projector from being misaligned.

[0010] For the installation and fixation of the projector, preferably, the fixing component on the left includes a fixing frame, a connecting rod, and a mounting cylinder. The top of the fixing frame is fixedly connected to the bottom of the mounting plate. The surface of the connecting rod is movably connected to the interior of the fixing frame. The interior of the mounting cylinder is movably connected to the surface of the fixing frame. The front and rear sides of the connecting rod are fixedly connected to the front and rear sides of the interior of the mounting cylinder, respectively. The side of the mounting cylinder closest to the projector is movably connected to the surface of the projector. The mounting cylinder supports the projector, and the side of the mounting cylinder closest to the projector clamps and fixes the projector to the mounting plate, thereby making the projector stable and fixed at the bottom of the mounting plate.

[0011] To support the adjusting block, preferably, a fixing ring is fixedly connected to the bottom of the fixing box, and a limit ring is fixedly connected inside the fixing ring. The surface of the limit ring is movably connected to the surface of the adjusting block, thereby limiting the position of the adjusting block and preventing it from moving downward.

[0012] To facilitate the movement of the mounting cylinder, preferably, a threaded rod is movably connected inside the fixing frame. The surface of the threaded rod is threadedly connected to the inside of the connecting rod. A limit block is fixedly connected to the top of the surface of the threaded rod. The surface of the limit block is movably connected to the inside of the mounting plate. By rotating the threaded rod, the connecting rod moves during the rotation, and the mounting cylinder moves during the movement of the connecting rod.

[0013] To reduce wear on the traction rope, preferably, two fixed shafts are fixedly connected to the bottom inside the fixing box. Connecting sleeves are movably connected to the surfaces of the two fixed shafts, and the surfaces of the two connecting sleeves are movably connected to the surface of the traction rope. The traction rope is limited by the two connecting sleeves to prevent friction between the traction rope and the fixing box, thereby reducing wear on the traction rope.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] This utility model, by setting up structural components such as a projection device, a mounting plate, a projector, and mounting components, allows for video projection playback through the projection device, fixes the projector to the bottom of the ceiling through the mounting components, allows for rotational adjustment of the projector through the adjustment components, and fixes the projector to the bottom of the mounting plate through the fixing components, thus achieving the effect of facilitating the disassembly and maintenance of the projector. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural schematic diagram provided in an embodiment of the present utility model;

[0017] Figure 2 This is a three-dimensional structural diagram of the interior of the fixing box provided in an embodiment of the present utility model;

[0018] Figure 3 This is a three-dimensional structural diagram of the adjustment component provided in an embodiment of the present utility model;

[0019] Figure 4 This is a three-dimensional structural diagram of the fixing component provided in an embodiment of the present utility model.

[0020] In the diagram: 1. Projection device; 101. Mounting plate; 102. Projector; 2. Mounting assembly; 201. Fixing box; 202. Rewinding motor; 203. Rewinding rod; 204. Traction rope; 3. Fixing rod; 4. Adjusting block; 5. Adjusting assembly; 501. Adjusting motor; 502. First gear; 503. Second gear; 6. Fixing assembly; 601. Fixing frame; 602. Connecting rod; 603. Mounting cylinder; 7. Fixing ring; 8. Limiting ring; 9. Threaded rod; 10. Limiting block; 11. Fixing shaft; 12. Connecting sleeve. Detailed Implementation

[0021] To further understand the invention content, features and effects of this utility model, the following embodiments are provided, and detailed descriptions are given in conjunction with the accompanying drawings.

[0022] The structure of this utility model will now be described in detail with reference to the accompanying drawings.

[0023] like Figures 1 to 4As shown in the figure, this utility model provides a projection device for computer video playback, including a projection device 1 and a mounting assembly 2. The projection device 1 includes a mounting plate 101 and a projector 102, which is mounted on the bottom of the mounting plate 101. The mounting assembly 2 includes a fixing box 201, a winding motor 202, a winding rod 203, and a traction rope 204. The bottom of the winding motor 202 is fixedly connected to the bottom of the interior of the fixing box 201. The left side of the surface of the winding rod 203 is movably connected to the left side of the interior of the fixing box 201. The left side of the output end of the winding motor 202 is fixedly connected to the right side of the winding rod 203. The top end of the traction rope 204 is fixedly connected to the surface of the winding rod 203, and the bottom of the traction rope 204 is fixedly connected to the mounting plate 101. The mounting plate 102 is fixedly connected internally; the projection device 1 is used for video projection playback; the mounting assembly 2 is used to fix the projector 102 to the bottom of the ceiling. To improve the stability of the mounting plate 101, fixing rods 3 are fixedly connected to the left and right sides of the bottom of the fixing box 201. The bottom of the two fixing rods 3 is movably connected to the top of the mounting plate 101. An adjusting block 4 is movably connected to the bottom of the fixing box 201. The surface of the adjusting block 4 is inserted into the interior of the mounting plate 101. An adjusting assembly 5 is provided inside the fixing box 201. Fixing assemblies 6 are provided on the left and right sides of the bottom of the mounting plate 101. The two fixing rods 3 limit the two sides of the top of the mounting plate 101 to prevent the mounting plate 101 from tilting, thereby improving the stability of the mounting plate 101. To prevent the projector 102 from being misaligned during installation, the adjustment assembly 5 includes an adjustment motor 501, a first gear 502, and a second gear 503. The top of the adjustment motor 501 is fixedly connected to the top of the interior of the mounting box 201. The surface of the first gear 502 meshes with the surface of the output end of the adjustment motor 501. The top of the second gear 503 is fixedly connected to the bottom of the first gear 502, and the surface of the second gear 503 meshes with the interior of the adjustment block 4. During installation, the adjustment block 4 is inserted into the mounting plate 101. The adjustment motor 501 drives the first gear 502 to rotate. During the rotation of the first gear 502, the second gear 503 drives the adjustment block 4 to rotate. During the process, the projector 102 is rotated and adjusted by the mounting plate 101 to prevent directional misalignment. To secure the projector 102, the left-side fixing assembly 6 includes a fixing frame 601, a connecting rod 602, and a mounting cylinder 603. The top of the fixing frame 601 is fixedly connected to the bottom of the mounting plate 101. The surface of the connecting rod 602 is movably connected to the interior of the fixing frame 601. The interior of the mounting cylinder 603 is movably connected to the surface of the fixing frame 601. The front and rear sides of the connecting rod 602 are fixedly connected to the front and rear sides of the interior of the mounting cylinder 603, respectively. The side of the mounting cylinder 603 closest to the projector 102 is movably connected to the surface of the projector 102, thus supporting the projector 102.The mounting cylinder 603 clamps and fixes the projector 102 to the mounting plate 101 on the side near the projector 102, thereby making the projector 102 stable at the bottom of the mounting plate 101. In order to support the adjusting block 4, a fixing ring 7 is fixedly connected to the bottom of the fixing box 201. The fixing ring 7 is fixedly connected to the inside of the fixing ring 7. The surface of the limiting ring 8 is movably connected to the surface of the adjusting block 4. The limiting ring 8 restricts the position of the adjusting block 4 and prevents the adjusting block 4 from moving downward. In order to move the mounting cylinder 603, a threaded rod 9 is movably connected to the inside of the fixing bracket 601. The surface of the threaded rod 9 is threadedly connected to the inside of the connecting rod 602. The top of the surface of the threaded rod 9 is fixedly connected to a limiting rod. Block 10, the surface of the limiting block 10 is movably connected to the interior of the mounting plate 101. By rotating the threaded rod 9, the connecting rod 602 moves, and the mounting cylinder 603 moves. To reduce wear on the traction rope 204, two fixed shafts 11 are fixedly connected to the bottom inside the fixing box 201. Connecting sleeves 12 are movably connected to the surfaces of both fixed shafts 11, and the surfaces of both connecting sleeves 12 are movably connected to the surface of the traction rope 204. The two connecting sleeves 12 limit the traction rope 204, preventing friction between the traction rope 204 and the fixing box 201, thereby reducing wear on the traction rope 204.

[0024] The working principle of this utility model:

[0025] When disassembling and maintaining the projector 102, the take-up motor 202 is started, which drives the take-up rod 203 to rotate. The take-up rod 203 unwinds the traction rope 204, causing the projector 102 to move downwards due to its own weight. After the projector 102 reaches its lowest point, the threaded rod 9 is reversed. During the rotation of the threaded rod 9, the connecting rod 602 moves downwards, which in turn moves the mounting cylinder 603 downwards, thus allowing for the disassembly and maintenance of the projector 102. After the maintenance of the projector 102 is completed, it is placed on top of the mounting cylinder 603. The threaded rod 9 is then rotated, causing the mounting cylinder 603 to move upwards. 3. The projector 102 is clamped and fixed to the mounting plate 101, making the projector 102 stable at the bottom of the mounting plate 101. The winding motor 202 is started, and the winding rod 203 winds up the traction rope 204. The projector 102 moves upward, and the mounting plate 101 is sleeved on the outside of the adjusting block 4. The adjusting motor 501 is started, and the adjusting motor 501 drives the first gear 502 to rotate. During the rotation of the first gear 502, the adjusting block 4 is driven to rotate through the second gear 503. During the rotation of the adjusting block 4, the projector 102 is rotated and adjusted through the mounting plate 101, so that the projector 102 is rotated to a suitable angle, thereby completing the installation of the projector 102.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0027] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can exercise their rights without departing from the scope of the present utility model.

Claims

1. A projection device for computer video playback, comprising a projection unit (1) and a mounting assembly (2), characterized in that: The projection device (1) includes a mounting plate (101) and a projector (102). The projector (102) is mounted on the bottom of the mounting plate (101). The mounting assembly (2) includes a fixed box (201), a winding motor (202), a winding rod (203), and a traction rope (204). The bottom of the winding motor (202) is fixedly connected to the bottom of the inside of the fixed box (201). The left side of the surface of the winding rod (203) is movably connected to the left side of the inside of the fixed box (201). The left side of the output end of the winding motor (202) is fixedly connected to the right side of the winding rod (203). The top end of the traction rope (204) is fixedly connected to the surface of the winding rod (203). The bottom of the traction rope (204) is fixedly connected to the inside of the mounting plate (101). The projection device (1) is used for video projection playback; The mounting assembly (2) is used to fix the projector (102) to the bottom of the ceiling.

2. The projection device for computer video playback as described in claim 1, characterized in that: Fixing rods (3) are fixedly connected to the left and right sides of the bottom of the fixing box (201). The bottom of the two fixing rods (3) is movably connected to the top of the mounting plate (101). Adjusting blocks (4) are movably connected to the bottom of the fixing box (201). The surface of the adjusting blocks (4) is inserted into the interior of the mounting plate (101). Adjusting components (5) are provided inside the fixing box (201). Fixing components (6) are provided on the left and right sides of the bottom of the mounting plate (101).

3. The projection device for computer video playback as described in claim 2, characterized in that: The adjustment assembly (5) includes an adjustment motor (501), a first gear (502) and a second gear (503). The top of the adjustment motor (501) is fixedly connected to the top of the inside of the fixed box (201). The surface of the first gear (502) is meshed with the surface of the output end of the adjustment motor (501). The top of the second gear (503) is fixedly connected to the bottom of the first gear (502). The surface of the second gear (503) is meshed with the inside of the adjustment block (4).

4. The projection device for computer video playback as described in claim 2, characterized in that: The fixing component (6) on the left includes a fixing frame (601), a connecting rod (602), and a mounting cylinder (603). The top of the fixing frame (601) is fixedly connected to the bottom of the mounting plate (101). The surface of the connecting rod (602) is movably connected to the interior of the fixing frame (601). The interior of the mounting cylinder (603) is movably connected to the surface of the fixing frame (601). The front and rear sides of the connecting rod (602) are fixedly connected to the front and rear sides of the interior of the mounting cylinder (603), respectively. The side of the mounting cylinder (603) closest to the projector (102) is movably connected to the surface of the projector (102).

5. The projection device for computer video playback as described in claim 2, characterized in that: The bottom of the fixed box (201) is fixedly connected to a fixed ring (7), and a limit ring (8) is fixedly connected inside the fixed ring (7). The surface of the limit ring (8) is movably connected to the surface of the adjusting block (4).

6. The projection device for computer video playback as described in claim 4, characterized in that: The fixed frame (601) is internally connected to a threaded rod (9), the surface of which is threadedly connected to the inside of the connecting rod (602), and a limiting block (10) is fixedly connected to the top of the surface of the threaded rod (9), the surface of which is internally connected to the mounting plate (101).

7. The projection device for computer video playback as described in claim 1, characterized in that: The bottom of the fixed box (201) is fixedly connected to two fixed shafts (11), and the surfaces of the two fixed shafts (11) are movably connected to connecting sleeves (12), and the surfaces of the two connecting sleeves (12) are movably connected to the surface of the traction rope (204).