Foldable multimedia display equipment

Abstract

The invention discloses a foldable multimedia display device which comprises a box body and a limiting block, a driving rotating shaft is installed in the box body, and a first display screen is connected with a second display screen through an electric roller. According to the foldable multimedia display equipment, the motor drives the driving rotating shaft to rotate, when the driving rotating shaft rotates, the display screen is driven by the mounting block to rotate out of the interior of the box body so that the display screen can be kept vertical, and meanwhile, the electric roller drives the second display screen which is stored on the rear side of the first display screen to rotate out; therefore, relevant display can be carried out through a display driving area formed by the first display screen and the second display screens, and meanwhile, the display angles of the second display screens on the two sides can be flexibly adjusted by independently controlling the electric roller, so that different requirements are met; and similarly, after use, 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 are prevented from being collided and damaged during transportation.

Description

Technical Field

[0001] The present invention relates to the technical field of multimedia display devices, and in particular to a foldable multimedia display device. Background Art

[0002] Multimedia, or multimedia information service, is one of the highest standards of SMS technology development at present. The biggest feature of multimedia equipment is that it can support multimedia functions. With the help of high-speed transmission technology EDGE and GPRS, video clips, pictures, sounds and texts are transmitted using WAP as a carrier. It can not only transmit multimedia between mobile phones. And it can be transmitted between mobile phones and computers. Multimedia display devices belong to a type of multimedia equipment. After searching, it is found that the typical multimedia display devices in the prior art are multimedia display devices with good display effects such as publication number CN111065241A, including a mounting frame, a display screen, a suspension rod and a base plate. The mounting frame is provided with four mounting plates connected end to end, and a closed return structure is formed between the mounting plates. The display screen is fixedly mounted on the outer end surface of the mounting plate, and the mounting frame is fixedly connected to the base plate through a suspension rod. The interior of the mounting frame is provided with a heat dissipation mechanism, and the heat dissipation mechanism includes heat dissipation aluminum fins and a fan. Its main features are simple structure, firmness, good stability, good heat dissipation effect, and good display effect of multimedia display devices.

[0003] In summary, most of the existing multimedia display devices are integrated fixed structures, which occupy a large storage space during transportation and storage. At the same time, due to their dispersed structures, the display components are easily damaged by accidental contact. In view of the above problems, it is necessary to improve the existing devices. Summary of the invention

[0004] The object of the present invention is to provide a foldable multimedia display device to solve the problem that most of the existing multimedia display devices mentioned in the above background technology are integrated fixed structures, which occupy a large storage space during transportation and storage, and the display components are easily damaged by accident due to their dispersed structures.

[0005] To achieve the above object, the present invention provides the following technical solution: a foldable multimedia display device, comprising a box and a limit block,

[0006] A driving shaft is installed inside the box, and one end of the driving shaft is connected to the output end of the motor, a mounting block is provided on the top of the driving shaft, and a first display screen is installed on the top of the mounting block, the first display screen is connected to the second display screen through an electric roller, the driving shaft is connected to the first driven shaft through a first belt transmission structure, and the first driven shaft is connected to the linkage roller through a second belt transmission structure, a second driven shaft is provided on one side of the linkage roller, and support feet are connected to both the first driven shaft and the second driven shaft.

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

[0008] Preferably, the driving rotating shaft is arranged above the second driven rotating shaft, and the driving rotating shaft is installed at a top opening on a side wall of the box body.

[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, and the electric roller is installed in a groove on the rear wall of the first display screen.

[0010] Preferably, the supporting feet on the first driven shaft and the supporting feet on the second driven shaft are arranged alternately, and the first driven shaft, the linkage roller and the second driven shaft are all rotatably connected inside the box.

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

[0012] Preferably, four groups of supporting legs are provided, and suction cups are provided at the bottoms of the supporting legs, and the suction cups are engaged in limiting grooves on the box cover.

[0013] Preferably, the support legs are arranged above the rotating groove, and the rotating groove is opened at the bottom of the box body.

[0014] Preferably, the linkage roller is connected to the second driven shaft through 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 limit block is connected to an inner wall of one side of the box through a telescopic spring, and the other side wall of the limit block is connected to a side wall of the first display screen away from the mounting block, and rollers are symmetrically installed on the bottom of the box.

[0016] Compared with the prior art, the present invention has the following beneficial effects: the foldable multimedia display device,

[0017] (1) The present invention can effectively solve the problem that most of the existing multimedia display devices are integrated fixed structures, which occupy a large storage space during transportation and storage, and are easily damaged by accidental collision due to their dispersed structures. The motor drives the active shaft to rotate. When the active shaft rotates, it drives the first display screen to rotate out of the interior of the box through the mounting block to keep it vertical. At the same time, the electric roller drives the second display screen that is separately stored behind the first display screen to rotate out, so that the display area formed by the first display screen and the second display screen can be used for relevant display. At the same time, the electric roller can be controlled to flexibly adjust the display angles of the second display screens on both sides to meet different display requirements. Similarly, after use, the motor and the electric roller can be controlled to rotate in the opposite direction to fold the first display screen and store it in the interior of the box, thereby preventing 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 the existing display device usually has a padded table or other supporting components at the bottom for easy viewing, that is, its structure has certain defects, by using the first driven shaft and the second driven shaft in combination. The motor drives the active shaft to rotate to display the first display screen and the second display screen, and at the same time drives the first driven shaft to rotate synchronously through the first belt transmission structure. When the first driven shaft rotates, it drives the linkage roller to rotate in the same direction through the second belt transmission structure. The linkage roller pushes the second driven shaft to rotate in the opposite direction with the cooperation of the gear transmission structure. When the first driven shaft and the second driven shaft rotate in different directions, they drive the supporting feet and the suction cup connected above them to rotate out of the rotating groove, so that the supporting feet can be used to support the device at a high level, so that the device can be used alone without external assistance, and the entire unfolding work is carried out synchronously with the first display screen and the second display screen, and does not require additional driving equipment to drive, and the degree of automation is high;

[0019] (3) The present invention can effectively solve the problem of poor portability of existing multimedia display devices due to their dispersed structures through the coordinated use of limit blocks and telescopic springs. When the motor drives the active shaft to rotate the first display screen and the second display screen to be stored inside the box, the first display screen will squeeze the limit block to compress the telescopic spring. At the same time, under the rebound thrust of the telescopic spring, the limit 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 snap the box cover onto the top of the box, so that they can hold the telescopic handle to push the roller to move the device, thereby improving the portability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0021] Figure 2 It 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 when in use;

[0023] Figure 4 This is a schematic diagram of the overall structure of the distribution of the support legs inside the box of the present invention;

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

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

[0026] In the figure: 1. box body; 2. box cover; 3. driving shaft; 4. motor; 5. mounting block; 6. first display screen; 7. second display screen; 8. electric roller; 9. first belt transmission structure; 10. first driven shaft; 11. supporting foot; 12. suction cup; 13. second belt transmission structure; 14. second driven shaft; 15. linkage roller; 16. gear transmission structure; 17. limit block; 18. telescopic spring; 19. rotating groove; 20. hinge; 21. self-locking bracket; 22. roller; 23. telescopic handle. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] See also Figure 1-6 The present invention provides a technical solution: a foldable multimedia display device, embodiment 1

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

[0030] In a further embodiment, a box cover 2 is snap-fittedly connected to the top of the box body 1, and limiting grooves are symmetrically provided on the inner wall of the box cover 2. At the same time, a telescopic handle 23 is provided on the outer wall of one side wall of the box cover 2. The left and right outer walls of the box body 1 are connected to the self-locking bracket 21 through a hinge 20, and two groups of folding legs are symmetrically provided at the bottom of the self-locking bracket 21, 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 driving rotating shaft 3 is disposed above the second driven rotating shaft 14 , and the driving rotating shaft 3 is installed at a top opening on a side wall of the box body 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, and 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 supporting feet 11 on the first driven shaft 10 and the supporting feet 11 on the second driven shaft 14 are arranged alternately, and the first driven shaft 10, the linkage roller 15 and the second driven shaft 14 are all rotatably connected inside the box body 1.

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

[0035] In a further embodiment, four groups of supporting legs 11 are provided, and suction cups 12 are provided at the bottoms of the supporting legs 11 , and the suction cups 12 are engaged in limiting grooves on the box cover 2 .

[0036] In a further embodiment, the support foot 11 is disposed above the rotation slot 19 , and the rotation slot 19 is opened at the bottom of the box body 1 .

[0037] In a further embodiment, the linkage roller 15 is connected to the second driven shaft 14 through a 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 the actual working process, the box cover 2 is removed from the top of the box body 1 and placed on the ground, and then the device is started, and the motor 4 drives the active shaft 3 to rotate. When the active shaft 3 rotates, it drives the first display screen 6 to rotate out from the inside of the box body 1 through the mounting block 5 to keep it vertical. At the same time, the electric roller 8 drives the second display screen 7 that is separately stored on the rear side of the first display screen 6 to rotate out, and then the display area formed by the first display screen 6 and the second display screen 7 can be used for relevant display. 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 separately. On the other hand, driven by the first belt transmission structure 9, the first driven shaft 10 will rotate synchronously with the active shaft 3, and when the first driven shaft 10 rotates, it drives the linkage roller 15 to rotate in the same direction through the second belt transmission structure 13. The linkage roller 15 is in the gear transmission structure. With the cooperation of the structure 16, the second driven shaft 14 will be pushed to rotate in the opposite direction. When the first driven shaft 10 and the second driven shaft 14 rotate in different directions, the supporting feet 11 and the suction cup 12 connected above them will be driven out of the rotating groove 19. Then the staff can place the supporting feet 11 in the groove on the inner side of the box cover 2 to stably support the device. After the device is used, the staff 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 back side of the first display screen 6, and the first display screen 6 is rotated and folded to the inside of the box body 1. At this time, the first driven shaft 10 and the second driven shaft 14 drive the supporting feet 11 to rotate synchronously so that they are folded and stored in the inside of the box body 1 through the rotating groove 19. Then the staff can engage the box cover 2 on the top of the box body 1, and then hold the telescopic handle 23 to push the roller 22 to move the device as a whole.

[0039] Embodiment 2

[0040] This embodiment is a further description of the above embodiment. 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 limit block 17 is connected to an inner wall of one side of the box body 1 through a telescopic spring 18, and the other side wall of the limit block 17 is connected to a side wall of the first display screen 6 away from the mounting block 5, and at the same time, rollers 22 are symmetrically installed on the bottom of the box body 1.

[0042] Specifically, the limit block 17 and the telescopic spring 18 can squeeze, limit and support the first display screen 6 and the structure connected to it, so as to prevent 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 aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A foldable multimedia display device, comprising a box (1) and a limit block (17), characterized in that: A driving shaft (3) is installed inside the box (1), and one end of the driving shaft (3) is connected to the output end of the motor (4); a mounting block (5) is arranged on the top of the driving 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 the second display screen (7) through an electric roller (8); the driving shaft (3) is connected to the first driven shaft (10) through a first belt transmission structure (9), and the first driven shaft (10) is connected to a linkage roller (15) through a second belt transmission structure (13); a second driven shaft (14) is arranged on one side of the linkage roller (15), and support feet (11) are connected to both the first driven shaft (10) and the second driven shaft (14).

2. A foldable multimedia display device according to claim 1, characterized in that: The top of the box body (1) is snap-fitted with a box cover (2), and a limiting groove is symmetrically provided on the inner wall of the box cover (2). A telescopic handle (23) is provided on the outer wall of one side wall of the box cover (2). The left and right outer walls of the box body (1) are connected to the self-locking bracket (21) through hinges (20), and two groups of folding legs are symmetrically provided at the bottom of the self-locking bracket (21), and the folding legs are stored in 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 driving rotating shaft (3) is arranged above the second driven rotating shaft (14), and the driving rotating shaft (3) is installed at a top opening on a side wall of the box body (1).

4. The 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) via an electric roller (8), while the electric roller (8) is installed in a groove on the rear wall of the first display screen (6).

5. The foldable multimedia display device according to claim 1, characterized in that: The supporting feet (11) on the first driven rotating shaft (10) and the supporting feet (11) on the second driven rotating shaft (14) are arranged alternately, and the first driven rotating shaft (10), the linkage roller (15) and the second driven rotating shaft (14) are all rotatably connected inside the box body (1).

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

7. The foldable multimedia display device according to claim 1, characterized in that: The supporting legs (11) are provided in four groups, and a suction cup (12) is provided at the bottom of the supporting legs (11), and the suction cup (12) is engaged in a limiting groove on the box cover (2).

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

9. The foldable multimedia display device according to claim 1, characterized in that: The linkage roller (15) is connected to the second driven rotating shaft (14) via a gear transmission structure (16), and the second driven rotating 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 rotating shaft (10), the driving rotating shaft (3) and the motor (4) constitute a rotating structure.

10. The foldable multimedia display device according to claim 1, characterized in that: One side wall of the limit block (17) is connected to an inner wall of one side of the box body (1) via a telescopic spring (18), and the other side wall of the limit block (17) is connected to a side wall of the first display screen (6) away from the mounting block (5), and rollers (22) are symmetrically mounted on the bottom of the box body (1).

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