A multimedia projection device that is easy to debug in exhibition halls

Abstract

This application relates to the field of projection equipment and discloses a multimedia projection device that is easy to debug in exhibition halls. In this application, the connecting frame, its side surface-connected connecting shaft, plug-in frame, and placement box constitute an external frame connecting component for connecting and mounting the projection device. The horizontal rotating shaft serves as the entire connecting component, and the horizontal plug-in sleeve rotatably inserts onto it. The horizontal angle scale on its outer surface corresponds to the horizontal angle pointer, and after determination, the horizontal angle limiting bolt is tightened inward to fix the horizontal rotating shaft in rotation. Through the above components, operators can achieve initial installation of the entire projection device, using the relevant digital scale as initial installation guidance, thus saving a significant amount of comparison work during subsequent installation.

Description

Technical Field

[0001] This application belongs to the field of projection equipment, specifically a multimedia projection device that is easy to debug in exhibition halls. Background Technology

[0002] Multimedia projection equipment for exhibition halls is a high-tech device used for exhibition displays. It mainly includes a projector, projection screen, and multimedia playback system. By connecting to a computer, video player, or other multimedia sources, it projects high-definition, dynamic images, videos, and animations onto a screen or other display surface, providing viewers with a vivid and intuitive visual experience. It is commonly used in product demonstrations, themed exhibitions, and historical and cultural introductions, enhancing the display effect and increasing audience participation and interest.

[0003] For example, CN222186374U discloses a multimedia projection device that is easy to debug in exhibition halls. It aims to solve the cumbersome technical problems in the installation, fixing, and debugging of current multimedia projection devices. The device includes a projector body. Support plates are connected to both sides of the bottom of the projector body via carrier plates. Multiple locking bolts are connected to the support plates via multiple threaded holes. A concave plate is connected to the other end of the support plate via a connecting beam. A worm gear is connected to the other end of the concave plate via a rotating head. A worm is connected to one side of the rotating head via a first servo motor. The top of the rotating head is fixedly connected to the output end of a second servo motor. The mounting end of the second servo motor is fixedly connected to the middle of a mounting frame. A track beam is installed on one side of the mounting frame. This invention can install and fix the projector body according to its length, improving the convenience of installation, fixing, and debugging.

[0004] However, in actual use, it was found that: with the increasing popularity of centralized exhibitions, multiple multimedia projection devices in the exhibition hall are often installed at once. While the installation process itself does not significantly affect the installers, excessive time and effort are often spent on repeatedly checking the angles. This is especially true after installing multiple duplicate projection devices, as most devices lack corresponding alignment marks during installation, leading to numerous repetitive calibrations, low efficiency, and a significant increase in the workload of the staff. Utility Model Content

[0005] The purpose of this application is to provide a multimedia projection device that is easy to debug in exhibition halls, in order to solve the problem of designing an alignment device in the debugging process of the multimedia equipment installation device mentioned above.

[0006] The technical solution adopted in this application is as follows: a multimedia projection device that is easy to debug in an exhibition hall, wherein a connecting central shaft is rotatably inserted into the side surface of the connecting frame, a plug-in frame is fixedly inserted into the side surface of the connecting central shaft, a placement box is fixedly connected to the side surface of the plug-in frame, a horizontal rotating shaft is fixedly connected to the upper surface of the connecting frame, a horizontal plug-in sleeve is inserted into the side surface of the horizontal rotating shaft relative to one end of the connecting frame, a horizontal angle scale is provided on the side surface of the horizontal plug-in sleeve, a horizontal angle limiting bolt is provided on the side surface of the horizontal plug-in sleeve, and a horizontal angle pointer is fixedly inserted into the side surface of the horizontal rotating shaft.

[0007] By adopting the above technical solution, operators can construct an external frame connecting component for mounting the projection device using a connecting bracket, connecting central axis, plug-in bracket, and placement box. The horizontal rotating shaft serves as the entire connecting component, with a horizontal plug-in sleeve whose outer surface's horizontal angle scale corresponds to the horizontal angle pointer. After confirmation, the horizontal angle limiting bolt is tightened inward to fix the horizontal rotating shaft in rotation. Using this component, operators can achieve initial installation of the entire projection device, with the relevant digital scale serving as initial guidance, saving significant comparison time during subsequent installation.

[0008] The connecting frame serves as the overall frame component for installation, while the connecting central shaft, which is fixedly inserted into the side surface, serves as the insertion component. The insertion bracket, which is fixedly inserted into the central shaft, serves as the chassis component of the entire installation component, and the placement box placed on the central shaft serves as the box-type component for installing the projection device.

[0009] The top of the device connects to the entire frame via a horizontal rotating shaft, allowing the shaft to rotate the entire assembly. The rotation between the shaft and the horizontal connector is fixed by a horizontal angle limiting bolt, which, when tightened inwards, secures the rotation. A horizontal angle pointer, fixedly attached to the shaft, serves as a reference point for comparison with the horizontal angle scale, facilitating easy reading of the corresponding markings and providing parameter comparisons for subsequent repeated installations.

[0010] In a preferred embodiment, a plurality of vertical insertion sleeves are inserted into the side surface of the connecting central shaft, the side surface of the vertical insertion sleeves is provided with vertical angle scales, a plurality of vertical angle pointers are fixedly inserted into the side surface of the connecting central shaft, a vertical angle limiting bolt is provided on the side surface of the vertical insertion sleeves, and a plurality of anti-slip rings are fixedly inserted into the side surface of the connecting central shaft.

[0011] By adopting the above technical solution, the vertical insertion sleeve and the connecting central shaft are rotated and inserted. Since the connecting central shaft is the main component of the insertion, the vertical angle pointer fixed at one end of it serves as a reference for the vertical angle scale on the vertical insertion sleeve. After the vertical angle limiting bolt is used for fixing, the operator can directly read the corresponding number. When the corresponding number is read, it can be used as a reference for subsequent installation, which greatly reduces the need for repeated adjustments.

[0012] In a preferred embodiment, the side surface of the placement box is provided with a plurality of clamping bolts, and the side surface of the placement box is provided with a cable outlet.

[0013] By adopting the above technical solution, the projector is connected and fixed by tightening the bolts inward, and the cable outlet is used as the line outlet of the projector to facilitate the connection between the external power supply and the power line of the projector.

[0014] In a preferred embodiment, a projector is fixedly connected to the inner side surface of the placement box, and a lifting rod is fixedly connected to the upper surface of the horizontal insertion sleeve.

[0015] By adopting the above technical solution, the lifting rod is used to raise and lower the entire projection device, allowing the entire projection device to hover at a suitable height to achieve subsequent projection operations. The projector then serves as the main body of the entire projection device.

[0016] In a preferred embodiment, the side surface of the lifting rod is provided with a plurality of height limiting holes, and the upper surface of the lifting rod is slidably inserted with a lifting hollow groove.

[0017] By adopting the above technical solution, a height limiting hole is used as a connector to restrict the raising and lowering of the lifting rod. The raising and lowering of the entire multimedia projection device is achieved by sliding between the lifting hollow groove and the lifting rod.

[0018] In a preferred embodiment, a height limiting bolt is slidably inserted into the height limiting hole through an opening, and a connecting seat is connected to the upper surface of the lifting hollow groove.

[0019] By employing the above technical solution, the lifting position of the lifting rod is fixed through the insertion of the height limiting bolt and the height limiting hole. The connecting bracket, on the other hand, allows for the connection of the entire multimedia frame.

[0020] In a preferred embodiment, a mounting backplate is connected to the upper surface of the connector.

[0021] By adopting the above technical solution, the installation of multimedia projection devices can be achieved by using the mounting backplate to contact the ceiling or wall of the exhibition hall.

[0022] In a preferred embodiment, the side surface of the mounting back plate is provided with a plurality of mounting holes.

[0023] By adopting the above technical solution, installation is achieved by using the insertion between the mounting hole and the screw.

[0024] In summary, due to the adoption of the above technical solution, the beneficial effects of this application are:

[0025] In this application, the connecting frame serves as the overall frame component for installation, and the connecting central shaft fixedly inserted to its side surface serves as the insertion component. The insertion bracket fixedly inserted to it serves as the chassis component of the entire installation component, and the placement box placed on it serves as the box-type component for installing the projection device.

[0026] The top of the device connects to the entire frame via a horizontal rotating shaft, allowing the shaft to rotate the entire assembly. The rotation between the shaft and the horizontal connector is fixed by a horizontal angle limiting bolt, which, when tightened inwards, secures the rotation. A horizontal angle pointer, fixedly attached to the shaft, serves as a reference point for comparison with the horizontal angle scale, facilitating easy reading of the corresponding markings and providing parameter comparisons for subsequent repeated installations.

[0027] With the above components, operators can perform a preliminary installation of the entire projection device. The relevant digital scales serve as initial guidance for installation, saving a significant amount of comparison work in subsequent installation processes. Attached Figure Description

[0028] Figure 1 This is a three-dimensional structural diagram of the overall device of this application;

[0029] Figure 2 This is a detailed schematic diagram of the box placement in this application;

[0030] Figure 3 This is a detailed schematic diagram of the clamping bolt in this application;

[0031] Figure 4 This is a detailed schematic diagram of the horizontal insertion sleeve in this application.

[0032] The markings in the diagram are: 1. Connecting frame; 2. Connecting central shaft; 3. Plug-in frame; 4. Placement box; 5. Horizontal rotating shaft; 6. Horizontal plug-in sleeve; 7. Horizontal angle scale; 8. Horizontal angle limit bolt; 9. Horizontal angle pointer; 10. Vertical plug-in sleeve; 11. Vertical angle scale; 12. Vertical angle pointer; 13. Vertical angle limit bolt; 14. Anti-slip ring; 15. Tightening bolt; 16. Cable outlet; 17. Projector; 18. Lifting rod; 19. Height limit hole; 20. Lifting hollow groove; 21. Height limit bolt; 22. Connecting seat; 23. Mounting back plate; 24. Mounting hole. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the embodiments of this application. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0034] Reference Figure 1-4 ,

[0035] Example: A multimedia projection device for easy debugging in an exhibition hall, wherein a connecting frame 1 has a connecting central shaft 2 rotatably inserted into its side surface, a connecting frame 3 is fixedly inserted into its side surface, a placement box 4 is fixedly connected to its side surface, a horizontal rotating shaft 5 is fixedly connected to its upper surface, a horizontal insertion sleeve 6 is inserted into one end of the horizontal rotating shaft 5 relative to the connecting frame 1, a horizontal angle scale 7 is provided on the side surface of the horizontal insertion sleeve 6, a horizontal angle limiting bolt 8 is provided on the side surface of the horizontal insertion sleeve 6, and a horizontal angle pointer 9 is fixedly inserted into the side surface of the horizontal rotating shaft 5.

[0036] The operator uses the connecting bracket 1, connecting central axis 2, plug-in bracket 3, and placement box 4 to construct an external frame connecting component for mounting the projection device. The horizontal rotating shaft 5 serves as the entire connecting component, with a horizontal plug-in sleeve 6 rotatably inserted onto it. The horizontal angle scale 7 on the outer surface of this sleeve corresponds to the horizontal angle pointer 9. After confirmation, the horizontal angle limiting bolt 8 is tightened inward to fix the horizontal rotating shaft 5 in rotation. Using these components, the operator can achieve initial installation of the entire projection device. The relevant digital scales serve as initial installation guidance, saving a significant amount of comparison work during subsequent installation.

[0037] The connecting frame 1 serves as the overall frame component for installation, while the connecting shaft 2, which is fixedly inserted into the side surface, serves as the insertion component. The insertion bracket 3, which is fixedly inserted into the shaft, serves as the chassis component of the entire installation component, and the placement box 4 placed on the shaft serves as the box-type component for installing the projection device.

[0038] The top of the device is connected to the entire frame component via a horizontal rotating shaft 5, allowing the entire device to rotate. The rotation between the horizontal rotating shaft 5 and the horizontal insertion sleeve 6 is fixed by tightening the horizontal angle limiting bolt 8, which serves as the angle fixing component. The horizontal angle pointer 9, fixedly inserted on the horizontal rotating shaft 5, acts as a reference component, allowing for easy comparison with the horizontal angle scale 7 to read the corresponding scale. This provides corresponding parameter comparisons for subsequent repeated installations.

[0039] Multiple vertical insertion sleeves 10 are inserted into the side surface of the connecting central shaft 2. The side surface of each vertical insertion sleeve 10 has a vertical angle scale 11. Multiple vertical angle pointers 12 are fixedly inserted into the side surface of the connecting central shaft 2. A vertical angle limiting bolt 13 is provided on the side surface of the vertical insertion sleeve 10. Multiple anti-slip rings 14 are fixedly inserted into the side surface of the connecting central shaft 2. The vertical insertion sleeve 10 and the connecting central shaft 2 are connected by a rotating insertion mechanism. Since the connecting central shaft 2 is the main component of the insertion, the vertical angle pointer 12 fixedly inserted at one end serves as a reference, and the vertical angle scale 11 on the vertical insertion sleeve 10 is used as a reference. After being fixed using the vertical angle limiting bolt 13, the operator can directly read the corresponding number. When the corresponding number is read, subsequent installation can be directly used as a reference, greatly reducing the need for repeated adjustments.

[0040] The side surface of the placement box 4 is provided with multiple clamping bolts 15, and the side surface of the placement box 4 is provided with a cable outlet 16. The clamping bolts 15 are tightened inward to connect and fix the projection device, and the cable outlet 16 is used as the line outlet of the projection device to facilitate the connection between the external power supply and the power line of the projection device.

[0041] The projector 17 is fixedly connected to the inner side surface of the placement box 4, and the lifting rod 18 is fixedly connected to the upper surface of the horizontal insertion sleeve 6. The lifting rod 18 is used to raise and lower the entire projection device, allowing the entire projection device to hover at a suitable height for subsequent projection operations. The projector 17 then serves as the main body of the entire projection device.

[0042] The lifting rod 18 has multiple height limiting holes 19 on its side surface, and a lifting hollow groove 20 is slidably inserted into its upper surface. The height limiting holes 19 are used as insertion components to limit the lifting and lowering of the lifting rod 18. The entire multimedia projection device is raised and lowered by sliding between the lifting hollow groove 20 and the lifting rod 18.

[0043] A height limiting bolt 21 is slidably inserted into the height limiting hole 19 through an opening, and a connecting seat 22 is connected to the upper surface of the lifting hollow groove 20. The lifting position of the lifting rod 18 is fixed by the insertion between the height limiting bolt 21 and the height limiting hole 19. The connecting seat 22 is used to connect the entire multimedia frame.

[0044] The upper surface of the connector 22 is connected to a mounting backplate 23. The mounting backplate 23 contacts the ceiling or wall of the exhibition hall to facilitate the installation of multimedia projection devices.

[0045] The side surface of the mounting backplate 23 has multiple mounting holes 24. Mounting is achieved by interlocking the mounting holes 24 with screws.

[0046] The implementation principle of this application's embodiment of a multimedia projection device for easy debugging in exhibition halls is as follows: The operator uses a connecting frame 1, a connecting central axis 2, a plug-in frame 3, and a placement box 4 to construct an external frame connecting component for connecting and mounting the projection device. The horizontal rotating shaft 5 serves as the entire connecting component, and the horizontal plug-in sleeve 6, which is rotatably plugged into it, has a corresponding component with its outer surface horizontal angle scale 7 and horizontal angle pointer 9. After confirmation, the horizontal angle limiting bolt 8 is tightened inward to fix the horizontal rotating shaft 5 in rotation. Through the above components, the operator can achieve initial corresponding installation of the entire projection device. The relevant digital scale serves as initial installation guidance, saving a significant amount of comparison work during subsequent installation.

[0047] The connecting frame 1 serves as the overall frame component for installation, while the connecting shaft 2, which is fixedly inserted into the side surface, serves as the insertion component. The insertion bracket 3, which is fixedly inserted into the shaft, serves as the chassis component of the entire installation component, and the placement box 4 placed on the shaft serves as the box-type component for installing the projection device.

[0048] The top of the device is connected to the entire frame component via a horizontal rotating shaft 5, allowing the entire device to rotate. The rotation between the horizontal rotating shaft 5 and the horizontal insertion sleeve 6 is fixed by tightening the horizontal angle limiting bolt 8, which serves as the angle fixing component. The horizontal angle pointer 9, fixedly inserted on the horizontal rotating shaft 5, acts as a reference component, allowing for easy comparison with the horizontal angle scale 7 to read the corresponding scale. This provides corresponding parameter comparisons for subsequent repeated installations.

[0049] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A multimedia projection device for easy debugging in exhibition halls, comprising a connecting frame (1), characterized in that: The connecting frame (1) has a connecting shaft (2) rotatably inserted into its side surface. The connecting shaft (2) has a connector (3) fixedly inserted into its side surface. The connector (3) has a placement box (4) fixedly connected to its side surface. The connecting frame (1) has a horizontal rotating shaft (5) fixedly connected to its upper surface. The horizontal rotating shaft (5) has a horizontal connector sleeve (6) inserted into one end of its side surface relative to the connecting frame (1). The horizontal connector sleeve (6) has a horizontal angle scale (7) on its side surface. The horizontal connector sleeve (6) has a horizontal angle limiting bolt (8) on its side surface. The horizontal rotating shaft (5) has a horizontal angle pointer (9) fixedly inserted into its side surface.

2. The multimedia projection equipment for exhibition halls that is easy to debug as described in claim 1, characterized in that: Multiple vertical insertion sleeves (10) are inserted into the side surface of the connecting central shaft (2). The side surface of the vertical insertion sleeve (10) is provided with vertical angle scales (11). Multiple vertical angle pointers (12) are fixedly inserted into the side surface of the connecting central shaft (2). The side surface of the vertical insertion sleeve (10) is provided with vertical angle limiting bolts (13). Multiple anti-slip rings (14) are fixedly inserted into the side surface of the connecting central shaft (2).

3. The multimedia projection device for exhibition halls that is easy to debug, as described in claim 2, is characterized in that: The side surface of the placement box (4) is provided with a plurality of clamping bolts (15), and the side surface of the placement box (4) is provided with a cable outlet (16).

4. The multimedia projection device for exhibition halls that is easy to debug as described in claim 1, characterized in that: The projector (17) is fixedly connected to the inner side surface of the placement box (4), and the lifting rod (18) is fixedly connected to the upper surface of the horizontal plug sleeve (6).

5. The multimedia projection device for exhibition halls that is easy to debug as described in claim 4, characterized in that: The lifting rod (18) has multiple height limiting holes (19) on its side surface, and a lifting hollow groove (20) is slidably inserted into the upper surface of the lifting rod (18).

6. The multimedia projection device for exhibition halls that is easy to debug as described in claim 5, characterized in that: The height limiting hole (19) is slidably connected to the height limiting bolt (21) through the hole, and the upper surface of the lifting hollow groove (20) is connected to the connecting seat (22).

7. The multimedia projection device for exhibition halls that is easy to debug as described in claim 6, characterized in that: The upper surface of the connector (22) is connected to the mounting back plate (23).

8. The multimedia projection device for exhibition halls that is easy to debug as described in claim 7, characterized in that: The side surface of the mounting back plate (23) is provided with a plurality of mounting holes (24).

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