High-definition audio and video playing all-in-one machine
By using the pole, slide, and rotating rod structure of the high-definition audio and video playback all-in-one machine, the problems of cumbersome disassembly and easy damage of traditional elevator advertising video projectors are solved, achieving convenient maintenance and stable operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING QINGYUAN ZHIXIN TECH CO LTD
- Filing Date
- 2025-05-27
- Publication Date
- 2026-04-17
AI Technical Summary
Traditional elevator advertising video projectors are cumbersome to disassemble, inconvenient to maintain, and prone to damage during disassembly.
A high-definition audio and video playback all-in-one machine was designed. Through the combination structure of the plug, slide plate and rotating rod, the height of the player body is reduced and the stability is improved, the operating space is increased and the cumbersome process of disassembly and installation is reduced.
It simplifies the maintenance process, reduces the risk of equipment damage, and improves maintenance efficiency and ease of operation.
Smart Images

Figure CN224135525U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of audio and video player technology, and in particular to a high-definition audio and video playback all-in-one machine. Background Technology
[0002] In the advertising and media industry, elevator advertising is increasingly favored by advertisers as an efficient and precise delivery method. As a major form of advertising, elevator video projectors typically use high-definition LCD screens that support high-resolution video playback, ensuring that the advertising content can present delicate and clear audio-visual effects during playback. They are usually installed inside the elevator car to play advertising videos during the idle time of elevator passengers.
[0003] Traditional video projectors are typically fixed directly inside the elevator car with brackets and bolts, positioned at a high point in the line of sight. When maintenance is required, disassembly often necessitates the use of professional tools. Furthermore, due to their height, disassembly is difficult for staff to operate, resulting in excessive time spent on disassembly and reassembly, significantly impacting work efficiency. Additionally, when the projector is fixed to a wall, one side of the player is obstructed, limiting the operator's reach. This necessitates manually lifting the player from the wall, which may cause it to wobble, potentially leading to the projector or its internal components falling to the ground and causing damage. Utility Model Content
[0004] The technical problem to be solved by this utility model is that the existing technology has the disadvantages of complicated disassembly process and inconvenience in maintenance. Therefore, we propose a high-definition audio and video playback all-in-one machine.
[0005] To achieve the above objectives, this application adopts the following technical solution: a high-definition audio and video playback all-in-one machine, including a support plate, with sliding shells fixedly connected to both sides of the support plate, mounting plates fixedly connected to both sides of the top and bottom of the sliding shells, an L-shaped plate fixedly connected to one side of the sliding shell, a plug rod threadedly connected to one end of the L-shaped plate, a sliding plate slidably connected inside the sliding shell, a first rotating rod rotatably connected to the bottom of the sliding plate, a second rotating rod rotatably connected to the bottom of the first rotating rod via a rotating shaft, a player body rotatably connected to the top of the second rotating rod via a shaft, and insertion holes provided on both sides of the player body.
[0006] Preferably, springs are fixedly connected to both sides of the bottom of the skateboard, and the bottom of the springs is fixedly connected to the skateboard shell.
[0007] Preferably, both ends of the slide plate are provided with slide grooves, and both sides of the slide shell are fixedly connected with slide rods. The slide rods are slidably connected to the inner wall of the slide grooves, and the slide rods are placed within the inner diameter of the spring.
[0008] Preferably, the bottom of the front end of the support plate is provided with an elongated groove, the inner wall of the elongated groove is slidably connected with a ball bearing, and the front end of the elongated groove is fixedly connected with a transparent plate.
[0009] Preferably, an extension plate is fixedly connected to the bottom of the support plate, and a coil is fixedly connected to one side of the extension plate.
[0010] Preferably, the rear end of the sliding shell is five centimeters away from the rear end of the player body.
[0011] The technical effects and advantages of this utility model are as follows:
[0012] In this invention, when the user unscrews the plug from the socket, the plug's limiting effect on the player body is removed. At this point, the components inside the sliding shell are no longer restricted, allowing the user to pull the player body forward, causing the second rotating rod to rotate and exit from the inside of the first rotating rod. Simultaneously, the top first rotating rod is rotatably connected to the sliding plate, allowing the first rotating rod to rotate forward with the second rotating rod. This forms a support, extending the player body forward and lowering its height. The sliding plate then slides up and down inside the sliding shell, allowing it to move downwards to the bottom of the shell. This lowers the player body's height, bringing it closer to the ground and ensuring relative stability. This prevents wobbling and displacement, avoiding the possibility of components falling and damaging the player body during wall-mounted maintenance. Furthermore, the back of the player body is away from the wall, freeing the back area from wall restrictions and increasing the operator's control space. This facilitates maintenance operations, reducing the tedious process of repeatedly disassembling and reassembling the player body, thus improving maintenance efficiency. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the main structure of this utility model;
[0014] Figure 2 This is an exploded view of the main structure of this utility model;
[0015] Figure 3 For the present utility model Figure 2 Enlarged view of the structure at point A in the middle;
[0016] Figure 4 This is an exploded view of the back structure of this utility model.
[0017] Legend: 1. Support plate; 2. Sliding shell; 3. Mounting plate; 4. L-shaped plate; 5. Insert rod; 6. Slide plate; 7. First rotating rod; 8. Second rotating rod; 9. Player body; 10. Socket; 11. Spring; 12. Slide groove; 13. Slide rod; 14. Long groove; 15. Ball bearing; 16. Transparent plate; 17. Extension plate; 18. Cable reel. Detailed Implementation
[0018] The present invention will now be described in further detail with reference to the accompanying drawings and preferred embodiments. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.
[0019] Reference Figure 1 - Figure 4 As shown, this utility model provides a technical solution: a high-definition audio and video playback all-in-one machine, including a support plate 1, with sliding shells 2 fixedly connected to both sides of the support plate 1, mounting plates 3 fixedly connected to both sides of the top and bottom of the sliding shells 2, an L-shaped plate 4 fixedly connected to one side of the sliding shell 2, a plug rod 5 threadedly connected to one end of the L-shaped plate 4, a sliding plate 6 slidably connected inside the sliding shell 2, a first rotating rod 7 rotatably connected to the bottom of the sliding plate 6, a second rotating rod 8 rotatably connected to the bottom of the first rotating rod 7 via a rotating shaft, and a player body 9 rotatably connected to the top of the second rotating rod 8 via a shaft. The player body 9 has insertion holes 10 on both sides. When the user unscrews the plug rod 5 from the insertion hole 10, the plug rod 5 restricts the movement of the player body 9. At this time, the components inside the sliding shell 2 are no longer restricted, allowing the user to pull the player body 9 forward, causing the second rotating rod 8 to rotate and exit from the first rotating rod 7. The first rotating rod 7 is rotatably connected to the sliding plate 6, allowing the first rotating rod 7 to rotate forward with the second rotating rod 8. This forms a support structure, extending the player body 9 forward and lowering its height. The sliding plate 6 then slides up and down inside the sliding shell 2, allowing it to move downwards to the bottom of the shell 2. This lowers the height of the player body 9, bringing it closer to the ground and ensuring relative stability. This prevents wobbling and displacement, reducing the possibility of parts falling and being damaged during wall-mounted repairs. Furthermore, the back of the player body 9 is further away from the wall, increasing the operator's control space and facilitating repairs. This reduces the tedious process of repeatedly disassembling and reassembling the player body 9, improving repair efficiency.
[0020] Reference Figure 2 - Figure 4As shown in this embodiment: Springs 11 are fixedly connected to both sides of the bottom of the slide plate 6. The bottom of the springs 11 is fixedly connected to the slide shell 2. When the slide plate 6 moves downward to lower the height of the player body 9 for maintenance, the slide plate 6 can push the springs 11 downward to compress and store force. When the operator rotates the first rotating rod 7 and the second rotating rod 8 to a vertical state, preparing to move the slide plate 6 to the top of the slide shell 2 and rotate the first rotating rod 7 into the slide shell 2, the force generated when the slide plate 6 is pressed down is released by the springs 11, causing the springs 11 to rebound upward and push the slide plate 6 upward to reset the position of the slide plate 6. This makes it easier for the first rotating rod 7 to retract into the slide shell 2, eliminating the step of the operator pushing the slide plate 6 upward to the top.
[0021] Reference Figure 2 and Figure 3 As shown in this embodiment: both ends of the slide plate 6 are provided with slide grooves 12, and both sides of the slide shell 2 are fixedly connected with slide rods 13. The slide rods 13 are slidably connected to the inner wall of the slide grooves 12. The slide rods 13 are placed within the inner diameter of the spring 11. Through the sliding connection between the slide rods 13 and the slide grooves 12, the vertical movement trajectory of the slide plate 6 is restricted, ensuring the straight vertical movement trajectory of the slide plate 6. At the same time, the load-bearing capacity of the slide plate 6 is distributed, improving the load-bearing capacity of the slide plate 6, preventing the slide plate 6 from shifting under force and causing the slide plate 6 to tilt inside the slide shell 2, ensuring the stability of the slide plate 6 during movement, and avoiding damage to the internal components of the player body 9 due to shaking.
[0022] Reference Figure 2 As shown in this embodiment: a long groove 14 is provided at the bottom of the front end of the support plate 1. A ball bearing 15 is slidably connected to the inner wall of the long groove 14. A transparent plate 16 is fixedly connected to the front end of the long groove 14. The horizontal opening of the long groove 14 allows the ball bearing 15 to roll left and right in the inner wall of the long groove 14. The transparent material of the transparent plate 16 allows the user to observe the position of the ball bearing 15 in the long groove 14 from the outside. When the player body 9 is installed at an angle, the ball bearing 15 rolls left and right in the inner wall of the long groove 14 according to the angle of the player body 9 under the influence of gravity. This makes it easier for the staff to control the installation angle and position of the player body 9 during installation, ensuring the horizontal state of the player body 9 after installation and avoiding the impact of the installation tilt on the use effect of the player body 9.
[0023] Reference Figure 4As shown in this embodiment: an extension plate 17 is fixedly connected to the bottom of the support plate 1, and a wire reel 18 is fixedly connected to one side of the extension plate 17. In the actual installation of the player body 9, if the wire used to connect to the player body 9 is too long, the wire reel 18 allows the staff to wrap the excess wire around the surface of the wire reel 18 to roll up the excessively long wire, preventing the wire from hanging down and affecting the overall aesthetics, and also avoiding safety hazards such as tripping caused by the excessively long wire.
[0024] Reference Figure 1 - Figure 4 As shown in this embodiment, the rear end of the sliding shell 2 is 5 cm away from the rear end of the player body 9. After the player body 9 is fixed to the wall by the support plate 1 and the sliding shell 2, the overall thickness of the sliding shell 2 and the positional distance of the player body 9 create an air circulation area between the player body 9 and the wall through the gap of the sliding shell 2. This increases the contact area between the rear side of the player body 9 and the air, ensuring that the temperature on the rear side of the player body 9 can be dissipated normally and cooled by contact with the air, improving the heat dissipation efficiency of the player body 9, and preventing the player body 9 from being too close to the wall, which would reduce the heat dissipation effect. The design of keeping the player body 9 away from the wall by the sliding shell 2 can also effectively reduce the possibility of moisture or water dripping from the wall into the player body 9 and corroding the electronic components.
[0025] Working principle: When the user unscrews the plug 5 from the socket 10, the plug 5 restricts the movement of the player body 9. At this point, the components inside the sliding shell 2 are no longer restricted, allowing the user to pull the player body 9 forward, causing the second rotating rod 8 to rotate and exit from inside the first rotating rod 7. Simultaneously, the top first rotating rod 7 is rotatably connected to the sliding plate 6, allowing the first rotating rod 7 to rotate forward with the second rotating rod 8. This forms a support between the first rotating rod 7 and the second rotating rod 8, extending the player body 9 forward and lowering its height. Then, the sliding plate 6 slides up and down inside the sliding shell 2, allowing the sliding plate 6 to move downwards to the bottom of the sliding shell 2, lowering the height of the player body 9 and bringing it closer to the ground, thus achieving a relatively stable state. The sliding plate 6 is designed to prevent shaking and displacement, avoiding the possibility of parts falling and being damaged during wall-mounted maintenance. Simultaneously, the back of the player body 9 is far from the wall, freeing the back area from wall constraints and increasing the operator's control space. This facilitates maintenance operations and reduces the tedious process of repeatedly disassembling and reinstalling the player body 9, improving efficiency. When the sliding plate 6 moves downwards to lower the player body 9 for maintenance, it compresses the spring 11 to store power. When the operator rotates the first and second levers 7 to a vertical position, preparing to move the sliding plate 6 to the top of the sliding shell 2... When the first rotating rod 7 rotates into the sliding shell 2, the force generated by the downward pressure of the sliding plate 6 is released by the spring 11, causing the spring 11 to rebound upward and push the sliding plate 6 upward, resetting the position of the sliding plate 6. This makes it easier for the first rotating rod 7 to retract into the sliding shell 2, eliminating the need for the operator to push the sliding plate 6 to the top. Through the sliding connection between the sliding rod 13 and the sliding groove 12, the vertical movement trajectory of the sliding plate 6 is restricted, ensuring a straight up-down movement trajectory. At the same time, the load-bearing capacity of the sliding plate 6 is distributed, improving its load-bearing capacity and preventing displacement of the sliding plate 6 under force, which could cause the sliding plate 6 to tilt inside the sliding shell 2. This ensures the stability of the sliding plate 6 during movement and avoids damage to the internal components of the player body 9 due to shaking. To prevent damage, the horizontal opening of the long groove 14 allows the ball bearing 15 to roll left and right within the inner wall of the long groove 14. The transparent material of the transparent plate 16 allows the user to observe the position of the ball bearing 15 within the long groove 14 from the outside. When the player body 9 is installed at an angle, the ball bearing 15, influenced by gravity, rolls left and right within the inner wall of the long groove 14 according to the tilt angle of the player body 9. This facilitates the operator's control over the installation angle and position of the player body 9, ensuring its horizontal position after installation and preventing the tilt from affecting its performance. In the actual installation of the player body 9, if the cable connecting to the player body 9 is too long, a cable reel 18 can be used to...This design allows workers to wind excess wiring onto the surface of the reel 18, preventing excessively long wiring from drooping and affecting the overall aesthetics. It also avoids potential tripping hazards caused by excessively long wiring. Once the player body 9 is fixed to the wall via the support plate 1 and the sliding shell 2, the overall thickness of the sliding shell 2 and the distance between it and the player body 9 create an airflow area between the player body 9 and the wall. This increases the contact area between the rear of the player body 9 and the air, ensuring that the rear temperature of the player body 9 can dissipate normally and cool down through contact with the air, improving the heat dissipation efficiency of the player body 9. It also prevents the player body 9 from being too close to the wall, which would reduce heat dissipation. Furthermore, the design of keeping the player body 9 away from the wall through the sliding shell 2 effectively reduces the possibility of moisture or water dripping from the wall onto the player body 9 and corroding the electronic components.
[0026] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A high-definition audio and video playback all-in-one machine, comprising a support plate (1), characterized in that: The support plate (1) is fixedly connected to both sides of the sliding shell (2). The top and bottom sides of the sliding shell (2) are fixedly connected to the mounting plate (3). The sliding shell (2) is fixedly connected to one side of the sliding shell (2). The L-shaped plate (4) is threadedly connected to one end of the L-shaped plate (4). The sliding plate (6) is slidably connected inside the sliding shell (2). The bottom of the sliding plate (6) is rotatably connected to the first rotating rod (7). The bottom of the first rotating rod (7) is rotatably connected to the second rotating rod (8) through a rotating shaft. The top of the second rotating rod (8) is rotatably connected to the player body (9) through a shaft. The player body (9) is provided with insertion holes (10) on both sides.
2. The high-definition audio and video playing integrated machine according to claim 1, characterized in that: Springs (11) are fixedly connected to both sides of the bottom of the slide plate (6), and the bottom of the springs (11) is fixedly connected to the slide shell (2).
3. The high-definition audio and video playing integrated machine according to claim 1, characterized in that: The slide plate (6) has a slide groove (12) at both ends. The slide shell (2) has a slide rod (13) fixedly connected to both sides. The slide rod (13) is slidably connected to the inner wall of the slide groove (12) and is placed in the inner diameter of the spring (11).
4. The high-definition audio and video playing integrated machine according to claim 1, characterized in that: The support plate (1) has a long groove (14) at the bottom of its front end. A ball bearing (15) is slidably connected to the inner wall of the long groove (14), and a transparent plate (16) is fixedly connected to the front end of the long groove (14).
5. The high-definition audio and video playing integrated machine according to claim 1, characterized in that: An extension plate (17) is fixedly connected to the bottom of the support plate (1), and a coil (18) is fixedly connected to one side of the extension plate (17).
6. A high-definition audio and video playback all-in-one machine according to claim 1, characterized in that: The rear end of the sliding shell (2) is five centimeters away from the rear end of the player body (9).