A foldable multimedia display device

Abstract

The application discloses a foldable multimedia display device, which comprises a box body and a limiting block, a driving rotating shaft is arranged in the box body, and a first display screen is connected with a second display screen through an electric roller. The foldable multimedia display device is driven to rotate by a motor, and the driving rotating shaft drives the display screen to rotate out of the box body and keep vertical when rotating, and the electric roller drives the second display screen to rotate out of the back side of the first display screen, so that the display area formed by the first display screen and the second display screen can be used for display, and the display angle of the second display screen on the two sides can be flexibly adjusted by controlling the electric roller, thereby meeting different requirements. Similarly, the first display screen and the second display screen can be folded and stored in the box body by controlling the motor and the electric roller to rotate reversely, so that the first display screen and the second display screen can be prevented from being damaged by collision during transportation.

Description

Technical Field

[0001] This invention relates to the field of multimedia display device technology, specifically to a foldable multimedia display device. Background Technology

[0002] Multimedia, or multimedia information service, represents the highest standard of SMS technology development. The biggest feature of multimedia devices is their support for multimedia functions. Utilizing high-speed transmission technologies like EDGE and GPRS, and using WAP as the carrier, they transmit video clips, images, audio, and text. This allows for multimedia transmission not only between mobile phones but also between mobile phones and computers. Multimedia display devices are a type of multimedia device. A search revealed a typical example of a high-quality multimedia display device, as described in publication number CN111065241A. This device includes a mounting frame, a display screen, a hanging rod, and a base plate. The mounting frame has four mounting plates connected end-to-end, forming a closed loop structure. The display screen is fixedly mounted on the outer end face of the mounting plates. The mounting frame is fixedly connected to the base plate via the hanging rod. An internal heat dissipation mechanism, including aluminum fins and a fan, is installed within the mounting frame. Its main characteristics are simple structure, robustness, good stability, and excellent heat dissipation, resulting in a high-quality multimedia display device with excellent display effects.

[0003] In summary, most existing multimedia display devices are integrated fixed structures, which occupy a large amount of storage space during transportation and storage. At the same time, due to their dispersed structure, the display components are easily damaged by accidental contact. To address these issues, existing devices need to be improved. Summary of the Invention

[0004] The purpose of this invention is to provide a foldable multimedia display device to solve the problems mentioned in the background art, which are mostly integrated fixed structures, thus occupying a large storage space during transportation and storage, and are prone to damage to the display components due to their dispersed structure.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a foldable multimedia display device, comprising a housing and a limiting block.

[0006] An active rotating shaft is installed inside the housing, and one end of the active rotating shaft is connected to the output end of the motor. A mounting block is provided on the top of the active rotating shaft, and a first display screen is mounted on the top of the mounting block. The first display screen is connected to a second display screen through an electric roller. The active rotating shaft is connected to a first driven rotating shaft through a first belt drive structure, and the first driven rotating shaft is connected to a linkage roller through a second belt drive structure. A second driven rotating shaft is provided on one side of the linkage roller, and support feet are connected to both the first and second driven rotating shafts.

[0007] Preferably, the top of the box is fitted with a lid, and the inner wall of the lid is symmetrically provided with limiting grooves. At the same time, a telescopic handle is provided on one side of the outer wall of the lid. The left and right outer walls of the box are connected to the self-locking bracket by hinges, and the bottom of the self-locking bracket is symmetrically provided with two sets of folding legs, which are stored inside the folding groove at the bottom of the self-locking bracket.

[0008] Preferably, the active rotating shaft is positioned above the second driven rotating shaft, and the active rotating shaft is installed at the top opening on one side wall of the housing.

[0009] Preferably, the second display screen is symmetrically arranged on both sides of the first display screen, and the second display screen is connected to the first display screen through an electric roller, while the electric roller is installed in a groove on the rear wall of the first display screen.

[0010] Preferably, the support feet on the first driven shaft and the support feet on the second driven shaft are staggered, and the first driven shaft, the linkage roller and the second driven shaft are all rotatably connected inside the housing.

[0011] Preferably, the first driven shaft and the second driven shaft rotate in opposite directions, and the first driven shaft is disposed on one side of the second driven shaft.

[0012] Preferably, the support feet are provided in four sets, and the bottom of the support feet is provided with suction cups, which are engaged in the limiting grooves on the lid.

[0013] Preferably, the support foot is positioned above the rotating groove, and the rotating groove is located at the bottom of the housing.

[0014] Preferably, the linkage roller is connected to the second driven shaft via a gear transmission structure, and the second driven shaft, the gear transmission structure, the linkage roller, the second belt transmission structure, the first belt transmission structure, the first driven shaft, the driving shaft, and the motor constitute a rotating structure.

[0015] Preferably, one side wall of the limiting block is connected to one side inner wall of the housing via a telescopic spring, and the other side wall of the limiting block is connected to the side wall of the first display screen away from the mounting block. Meanwhile, rollers are symmetrically installed at the bottom of the housing.

[0016] Compared with the prior art, the beneficial effects of the present invention are: this foldable multimedia display device,

[0017] (1) The present invention can effectively solve the problem that most existing multimedia display devices are integrated fixed structures, which occupy a large storage space during transportation and storage, and are easily damaged by accident due to their dispersed structure. The motor drives the active rotating shaft to rotate. When the active rotating shaft rotates, the first display screen is rotated out from the inside of the cabinet through the mounting block to keep it vertical. At the same time, the electric roller drives the second display screen, which is separately stored behind the first display screen, to rotate out. Then, the display area formed by the first display screen and the second display screen can be used for related display. At the same time, the display angle of the second display screen on both sides can be flexibly adjusted by controlling the electric roller to meet different display needs. Similarly, after use, the first display screen and the electric roller can be folded and stored in the inside of the cabinet by controlling the motor and the electric roller to prevent the first display screen and the second display screen from being damaged by collision during transportation or storage.

[0018] (2) The present invention can effectively solve the problem that existing display devices usually have a table or other support components at the bottom for easy viewing, which is a certain structural defect. The motor drives the active rotating shaft to rotate and display the first and second display screens. At the same time, the first driven rotating shaft will be driven to rotate synchronously through the first belt transmission structure. When the first driven rotating shaft rotates, the linkage roller will be driven to rotate in the same direction through the second belt transmission structure. The linkage roller will push the second driven rotating shaft to rotate in the opposite direction with the cooperation of the gear transmission structure. When the first and second driven rotating shafts rotate in opposite directions, the support feet and suction cups connected above them will rotate out of the rotating groove. The support feet can then be used to support the height of the device, so that the device can be used independently without external assistance. The entire unfolding operation is synchronized with the first and second display screens and does not require additional driving equipment. The degree of automation is high.

[0019] (3) The present invention can effectively solve the problem of poor portability caused by the dispersed structure of existing multimedia display devices by using the combination of limiting blocks and telescopic springs. When the motor drives the active rotating shaft to rotate and store the first display screen and the second display screen into the inside of the box, the first display screen will squeeze the limiting block and compress the telescopic spring. At the same time, under the rebound thrust of the telescopic spring, the limiting block will limit the first display screen to prevent it from colliding with the inside of the box or shaking when the device is moved and transported. Then, the staff will lock the box cover on the top of the box, so that they can hold the telescopic handle and push the roller to move the device, thereby improving the portability of the device. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the connection relationship between the active rotating shaft, the first driven rotating shaft, and the second driven rotating shaft of the present invention;

[0021] Figure 2 This is a schematic diagram of the overall structure of the present invention;

[0022] Figure 3 This is a schematic diagram of the overall structure of the device of the present invention during use;

[0023] Figure 4 This is a schematic diagram of the overall structure of the support legs distributed inside the housing according to the present invention;

[0024] Figure 5 For the present invention Figure 3 Enlarged structural diagram at point A in the middle;

[0025] Figure 6 For the present invention Figure 4 Enlarged structural diagram at point B.

[0026] In the diagram: 1. Box body; 2. Box cover; 3. Drive shaft; 4. Motor; 5. Mounting block; 6. First display screen; 7. Second display screen; 8. Electric roller; 9. First belt drive structure; 10. First driven shaft; 11. Support foot; 12. Suction cup; 13. Second belt drive structure; 14. Second driven shaft; 15. Linkage roller; 16. Gear drive structure; 17. Limiting block; 18. Telescopic spring; 19. Rotating groove; 20. Hinge; 21. Self-locking bracket; 22. Roller; 23. Telescopic handle. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] Please see Figure 1-6 The present invention provides a technical solution: a foldable multimedia display device, embodiment one.

[0029] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, an active rotating shaft 3 is installed inside the housing 1, and one end of the active rotating shaft 3 is connected to the output end of the motor 4. A mounting block 5 is provided on the top of the active rotating shaft 3, and a first display screen 6 is installed on the top of the mounting block 5. The first display screen 6 is connected to a second display screen 7 through an electric roller 8. The active rotating shaft 3 is connected to a first driven rotating shaft 10 through a first belt drive structure 9, and the first driven rotating shaft 10 is connected to a linkage roller 15 through a second belt drive structure 13. A second driven rotating shaft 14 is provided on one side of the linkage roller 15, and support feet 11 are connected to both the first driven rotating shaft 10 and the second driven rotating shaft 14.

[0030] In a further embodiment, the top of the box body 1 is snapped with a box cover 2, and the inner wall of the box cover 2 is symmetrically provided with limiting grooves. At the same time, a telescopic handle 23 is provided on the outer wall of one side of the box cover 2. The left and right outer walls of the box body 1 are connected to the self-locking bracket 21 by hinges 20. The bottom of the self-locking bracket 21 is symmetrically provided with two sets of folding legs, and the folding legs are stored inside the folding groove at the bottom of the self-locking bracket 21.

[0031] In a further embodiment, the active rotating shaft 3 is disposed above the second driven rotating shaft 14, and the active rotating shaft 3 is installed at the top opening on one side wall of the housing 1.

[0032] In a further embodiment, the second display screen 7 is symmetrically arranged on both sides of the first display screen 6, and the second display screen 7 is connected to the first display screen 6 through an electric roller 8, while the electric roller 8 is installed in a groove on the rear wall of the first display screen 6.

[0033] In a further embodiment, the support feet 11 on the first driven shaft 10 and the support feet 11 on the second driven shaft 14 are staggered, and the first driven shaft 10, the linkage roller 15 and the second driven shaft 14 are all rotatably connected inside the housing 1.

[0034] In a further embodiment, the first driven shaft 10 and the second driven shaft 14 rotate in opposite directions, and the first driven shaft 10 is disposed on one side of the second driven shaft 14.

[0035] In a further embodiment, four sets of support feet 11 are provided, and suction cups 12 are provided at the bottom of the support feet 11, while the suction cups 12 are engaged in the limiting grooves on the box cover 2.

[0036] In a further embodiment, the support foot 11 is disposed above the rotating groove 19, and the rotating groove 19 is formed at the bottom of the housing 1.

[0037] In a further embodiment, the linkage roller 15 is connected to the second driven shaft 14 via the gear transmission structure 16, and the second driven shaft 14, the gear transmission structure 16, the linkage roller 15, the second belt transmission structure 13, the first belt transmission structure 9, the first driven shaft 10, the driving shaft 3 and the motor 4 constitute a rotating structure.

[0038] Specifically, in actual operation, the lid 2 is removed from the top of the box 1 and placed on the ground. Then, the device is started, and the motor 4 drives the active rotating shaft 3 to rotate. When the active rotating shaft 3 rotates, it drives the first display screen 6 to rotate out of the box 1 through the mounting block 5, keeping it vertical. At the same time, the electric roller 8 drives the second display screen 7, which is separately stored behind the first display screen 6, to rotate out. Thus, relevant displays can be made through the display area formed by the first display screen 6 and the second display screen 7. At the same time, the display angle of the second display screen 7 on both sides can be flexibly adjusted by controlling the electric roller 8. On the other hand, the first driven rotating shaft 10 will rotate synchronously with the active rotating shaft 3 under the drive of the first belt drive structure 9. When the first driven rotating shaft 10 rotates, it drives the linkage roller 15 to rotate in the same direction through the second belt drive structure 13. The linkage roller 15 is in the gear transmission structure With the cooperation of mechanism 16, the second driven shaft 14 will be driven to rotate in the opposite direction. When the first driven shaft 10 and the second driven shaft 14 rotate in opposite directions, they will drive the support foot 11 and suction cup 12 connected above to rotate out of the rotating groove 19. Then, the operator can place the support foot 11 in the groove inside the box cover 2 to stably support the device. After the device is used, the operator can control the motor 4 and the electric roller 8 to reset, so that the second display screen 7 can be flipped and folded to the rear of the first display screen 6, and the first display screen 6 can be rotated and folded into the inside of the box 1. At this time, the first driven shaft 10 and the second driven shaft 14 drive the support foot 11 to rotate synchronously so that it can be folded and stored in the inside of the box 1 through the rotating groove 19. Then, the operator can lock the box cover 2 on the top of the box 1, and then hold the telescopic handle 23 to push the roller 22 to move the entire device.

[0039] Example 2

[0040] This embodiment is a further description of the above embodiments. It should be understood that this embodiment includes all the aforementioned technical features and is further described in detail.

[0041] like Figure 3 , Figure 4 and Figure 6 As shown, in a further embodiment, one side wall of the limiting block 17 is connected to one side inner wall of the housing 1 by a telescopic spring 18, and the other side wall of the limiting block 17 is connected to the side wall of the first display screen 6 away from the mounting block 5. Meanwhile, rollers 22 are symmetrically arranged at the bottom of the housing 1.

[0042] Specifically, the limiting block 17, together with the telescopic spring 18, can squeeze, limit, and support the first display screen 6 and its connected structure, preventing it from shaking up and down when the device moves, thereby protecting the first display screen 6 and the second display screen 7 and extending their service life.

[0043] Although the present invention 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 invention should be included within the protection scope of the present invention.

Claims

1. A foldable multimedia display device, comprising a housing (1) and a limiting block (17), characterized in that: The housing (1) is equipped with an active rotating shaft (3), one end of which is connected to the output end of a motor (4). A mounting block (5) is provided on the top of the active rotating shaft (3), and a first display screen (6) is mounted on the top of the mounting block (5). The first display screen (6) is connected to a second display screen (7) via an electric roller (8). The active rotating shaft (3) is connected to a first driven rotating shaft (10) via a first belt drive structure (9), and the first driven rotating shaft (10) is connected to a linkage roller (15) via a second belt drive structure (13). The linkage roller (15) is connected to the second driven shaft (14) on one side, and the first driven shaft (10) and the second driven shaft (14) are both connected to support feet (11). The linkage roller (15) is connected to the second driven shaft (14) through a gear transmission structure (16), and the second driven shaft (14), gear transmission structure (16), linkage roller (15), second belt transmission structure (13), first belt transmission structure (9), first driven shaft (10), drive shaft (3) and motor (4) constitute a rotating structure.

2. The foldable multimedia display device according to claim 1, characterized in that: The top of the box (1) is fitted with a box cover (2), and the inner wall of the box cover (2) is symmetrically provided with limiting grooves. At the same time, a telescopic handle (23) is provided on the outer wall of one side of the box cover (2). The left and right outer walls of the box (1) are connected to the self-locking bracket (21) by hinges (20). The bottom of the self-locking bracket (21) is symmetrically provided with two sets of folding legs, and the folding legs are stored inside the folding groove at the bottom of the self-locking bracket (21).

3. The foldable multimedia display device according to claim 1, characterized in that: The active rotating shaft (3) is positioned above the second driven rotating shaft (14), and the active rotating shaft (3) is installed at the top opening on one side wall of the housing (1).

4. A foldable multimedia display device according to claim 1, characterized in that: The second display screen (7) is symmetrically arranged on both sides of the first display screen (6), and the second display screen (7) is connected to the first display screen (6) through an electric roller (8). At the same time, the electric roller (8) is installed in a groove on the rear wall of the first display screen (6).

5. A foldable multimedia display device according to claim 1, characterized in that: The support feet (11) on the first driven shaft (10) and the support feet (11) on the second driven shaft (14) are staggered. At the same time, the first driven shaft (10), the linkage roller (15) and the second driven shaft (14) are all rotatably connected inside the housing (1).

6. A foldable multimedia display device according to claim 1, characterized in that: The first driven shaft (10) and the second driven shaft (14) rotate in opposite directions, and the first driven shaft (10) is located on one side of the second driven shaft (14).

7. A foldable multimedia display device according to claim 1, characterized in that: The support feet (11) are provided in four sets, and the bottom of the support feet (11) is provided with suction cups (12), which are engaged in the limiting groove on the box cover (2).

8. A foldable multimedia display device according to claim 1, characterized in that: The support foot (11) is located above the rotating groove (19), and the rotating groove (19) is located at the bottom of the box (1).

9. A foldable multimedia display device according to claim 1, characterized in that: One side wall of the limiting block (17) is connected to one side inner wall of the box (1) by a telescopic spring (18), and the other side wall of the limiting block (17) is connected to the side wall of the first display screen (6) away from the mounting block (5). Meanwhile, rollers (22) are symmetrically installed at the bottom of the box (1).

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