Easily transportable advertising machine

Abstract

An easily transportable advertising machine, comprising a first display screen (A), a second display screen (B), a hinge (15), and a locking member (13). The first display screen (A) and the second display screen (B) are rotatably connected via the hinge (15), and can be relatively unfolded or folded. The locking member (13) comprises a connecting hook (1303) and a locking rod (1304), wherein the connecting hook (1303) is rotatably connected to the first display screen (A); the connecting hook (1303) is provided with a rotation driving portion (1305) that exposes a frame body of the first display screen (A); the locking rod (1304) is arranged on the second display screen (B); and the connecting hook (1303) and the locking rod (1304) are both arranged at corresponding joints between the first display screen (A) and the second display screen (B). When the first display screen (A) and the second display screen (B) are rotated and unfolded, the connecting hook (1303) inside the first display screen (A) locks onto the locking rod (1304) inside the second display screen (B), thereby keeping the first display screen (A) and the second display screen (B) unfolded.

Description

An easy-to-transport advertising machine Technical Field

[0001] This application relates to the field of advertising machine technology, specifically an advertising machine that is easy to transport. Background Technology

[0002] For ease of transportation, existing technologies, such as the multi-purpose LED display advertising machine disclosed in patent application number 202311207941.8, achieve hinged folding or unfolding of the upper and lower display units through several foldable and self-locking hinge components on the advertising machine screen.

[0003] However, a hinge assembly contains numerous parts, each with a complex structure. From a mechanical perspective, this type of hinge assembly is prone to failure because its handle switch, multiple sets of slots, rotating holes, and ear plates form a cam-like structure that needs to overcome rotation dead points and the tension spring force, resulting in uneven relative rotation between the upper and lower display units. Relying on friction and the tension spring force to maintain the predetermined angle results in poor stability. After repeated use, fatigue damage is likely to occur, leading to difficulties in rotation and folding, requiring frequent replacement and maintenance of the hinge assembly.

[0004] Utility Model Content

[0005] This utility model addresses the above-mentioned problems by proposing an advertising machine that is easy to transport, aiming to solve the technical problems in the background art.

[0006] To achieve the above objectives, this utility model provides an advertising machine that is easy to transport, including a first display screen, a second display screen, a hinge, and a locking component; the first display screen and the second display screen are rotatably connected by the hinge and can be relatively flattened or folded; the locking component includes a connecting hook and a locking rod; the connecting hook is rotatably connected to the first display screen; the connecting hook has a rotation drive part that exposes the frame of the first display screen; the locking rod is located on the second display screen; and the connecting hook and the locking rod are both located at the corresponding connection points of the first display screen and the second display screen; when the first display screen and the second display screen are rotated flattened, the locking rod in the second display screen is locked by the connecting hook in the first display screen to keep the first display screen and the second display screen flattened.

[0007] Furthermore, the locking component also includes a first support housing and a second support housing; the connecting hook is disposed in the inner cavity of the first support housing and is rotatably connected to the first support housing; the rotation drive part protrudes from the first support housing; the locking rod is disposed in the inner cavity of the second support housing; and the corresponding connection points of the first display screen and the second display screen are provided with mounting positions corresponding to the first support housing and the second support housing.

[0008] Furthermore, it includes an unfolding retainer; when the first display screen and the second display screen are rotated and flattened, one end of the unfolding retainer is detachably attached to the first display screen, and the other end is detachably attached to the second display screen.

[0009] Furthermore, it includes a magnetic suction element, which is disposed on the first display screen and / or the second display screen. When the first display screen and the second display screen are rotated and folded, the magnetic suction element magnetically attracts and keeps the first display screen and the second display screen folded.

[0010] Furthermore, it includes a reinforcing plate; both the first and second display screens include a display panel, a middle frame, side edging plates, and a back cover plate; the display panel includes multiple splicable display panel units, laid on one end face of the middle frame; the back cover plate is connected to the other end face of the middle frame; the side edging plates surround and connect the sides of the display panel, middle frame, and back cover plate; the middle frame is provided with a connection position, and the display panel unit is detachably connected to the middle frame through the connection position; the reinforcing plate connects the middle frame, side edging plates, and back cover plate of the first and / or second display screens.

[0011] Furthermore, the middle frame located on the rotating connection side of the first display screen and the second display screen is provided with a wiring hole.

[0012] Furthermore, the side edging plate is detachably connected to the middle frame; the left and right sides of the middle frame are respectively provided with mounting positions for installing the locking components.

[0013] Furthermore, the left and right sides of the middle frame and / or the corresponding connection points between the first display screen and the second display screen are respectively provided with alignment members and docking positions that dock with the alignment members.

[0014] Furthermore, the alignment member is a ball-head plunger; the mating position is a groove corresponding to the ball head of the ball-head plunger.

[0015] Furthermore, the second display screen has a base at the end away from the first display screen, and the second display screen is detachably connected to the base via a mounting plate; the lower end of the base is provided with casters; the housing of the base is provided with a speaker, a first display screen receiving card, a power board, a power amplifier, a display screen main control card, and a second display screen receiving card; the base is provided with a sound transmission hole corresponding to the speaker; the base is also provided with an interface base fixing plate.

[0016] Furthermore, the width of the base is at most equal to the width of the first display screen and the second display screen.

[0017] Furthermore, a damping element is provided at the rotatable connection between the connecting hook and the first support housing.

[0018] This application also provides a conveniently transportable advertising machine, including a first display screen, a second display screen, and a hinge; the first and second display screens are rotatably connected by the hinge and can be relatively flattened or folded; each of the first and second display screens includes a display panel, a middle frame, a splicing part, and a side edging plate; the splicing part is located on the left and right sides of the first and second display screens, and the splicing part is provided with a locking component; the locking component includes a connecting hook and a locking rod; the connecting hook and the locking rod are both located inside the first and second display screens; the connecting hook is rotatably connected to the first and second display screens; the connecting hook is provided with a rotation drive part that protrudes from the frame of the first and second display screens; among multiple conveniently transportable advertising machines, one conveniently transportable advertising machine locks the locking rod of another conveniently transportable advertising machine through the connecting hook of the splicing part, keeping it locked, spliced, and flat.

[0019] Furthermore, it includes a reinforcing plate and a back cover plate; the display panel includes multiple splicable display panel units, laid on one end face of the middle frame; the back cover plate is connected to the other end face of the middle frame; the side edging plate surrounds and connects the sides of the display panel, the middle frame, and the back cover plate; the middle frame is provided with a connection position, and the display panel unit is detachably connected to the middle frame through the connection position; the reinforcing plate connects the middle frame, side edging plate, and back cover plate of the first display screen and / or the second display screen; the end of the second display screen away from the first display screen is provided with a base, and the second display screen is detachably connected to the base through a mounting plate.

[0020] Compared with existing technologies, this utility model provides an advertising machine that is easy to transport. The first mounting position is located inside the first and second display screens, allowing the locking mechanism to be concealed and improving the machine's aesthetic appearance. It also prevents accidental operation by unauthorized twisting of the drive unit, which could lead to locking failure. The locking mechanism securely holds the first and second display screens flat, and the use of readily available, simple, stable, and inexpensive hinges as the rotating connection makes this advertising machine easy to operate, easy to manufacture, reliable, long-lasting, and requires less maintenance. Attached Figure Description

[0021] Figure 1 is a schematic diagram of an advertising machine structure that is easy to transport according to this application.

[0022] Figure 2 is a schematic diagram of the structure of an advertising machine that is easy to transport according to this application from another perspective.

[0023] Figure 3 is an exploded view of the structure of an advertising machine that is easy to transport according to this application.

[0024] Figure 4 is a schematic diagram of the middle frame structure of an advertising machine that is easy to transport according to this application.

[0025] Figure 5 is a schematic diagram of the locking mechanism structure of an advertising machine that is easy to transport according to this application.

[0026] Figure 6 is a partial exploded view of the structure of an advertising machine that is easy to transport according to this application.

[0027] Figure 7 is a partial exploded view of another perspective of an advertising machine that is easy to transport according to this application.

[0028] The reference numerals in the figure are as follows: 1. Caster; 2. Base; 2010. Upper housing; 2011. Sound hole; 2020. Base plate; 3. Speaker; 4. First display screen receiver card; 5. Display panel; 510. Display panel unit; 6. Mounting plate; 7. Middle frame; 710. Connection position; 720. Cable routing hole; 8. Left side edge banding plate; 9. Top side edge banding plate; 11. Right side edge banding plate; 12. Back cover plate; 13. Locking element; 1301. First support housing; 1302. 1303. Second support housing; 1304. Connecting hook; 1305. Locking rod; 1306. Rotation drive unit; 14. Unfolding retaining member; 15. Hinge; 16. Reinforcing plate; 1610. Receiving groove; 17. Alignment member; 1701. Docking position; 18. Interface seat fixing plate; 19. Power board; 20. Power amplifier; 21. Display screen main control card; 22. Second display screen receiving card; 23. Magnetic suction member; 24. Mounting position; 25. Splicing part; A. First display screen; B. Second display screen. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model. It is understood that the accompanying drawings are provided for reference and illustration only and are not intended to limit the present utility model. The connection relationships shown in the drawings are only for clear description and do not limit the connection method.

[0030] It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component, or there may be an intervening component. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. It should also be noted that, unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral connection; as a mechanical connection or an electrical connection; or as a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the invention.

[0031] It should also be noted that in the description of this utility model, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0032] Please refer to Figures 1-6. This embodiment provides an advertising machine that is easy to transport, including: a first display screen A, a second display screen B, a hinge 15, and a locking component 13; the first display screen A and the second display screen B are rotatably connected by the hinge 15, and when unfolded, the display planes are on the same plane, resulting in a larger display area;

[0033] When folded, the outer contours overlap, facilitating transportation and delivery. Compared to traditional advertising machines, this reduces packaging volume and allows it to be used as a double-sided advertising machine.

[0034] It is worth noting that when the first display screen A and the second display screen B are rotated and unfolded relative to each other, their display planes are located on the same plane, which is approximately the same plane. This is because it is difficult to guarantee zero error when the manufactured display screen products are assembled. When the first display screen A and the second display screen B are unfolded, their display planes are located on the same plane, which is only an ideal state used to describe the positional relationship. The same applies when they are folded, and their outer contours are roughly aligned.

[0035] Example 1

[0036] The connecting hook 1303 is rotatably connected to the first display screen A; the connecting hook 1303 is provided with a rotation drive part 1305 that exposes the frame of the first display screen; the locking rod 1304 is provided on the second display screen B.

[0037] Example 2

[0038] The locking component 13 includes a first support housing 1301, a second support housing 1302, a connecting hook 1303, and a locking rod 1304; the connecting hook 1303 is disposed in the inner cavity of the first support housing 1301 and is rotatably connected to the first support housing 1301, and a damping component (not shown) is provided at the rotatable connection.

[0039] The connecting hook 1303 is provided with a rotation drive part 1305 that exposes the first support housing 1301;

[0040] In some embodiments, the rotation drive 1305 can be an internal hexagonal screw hole, which can drive the connecting hook 1303 to rotate relative to the first support housing 1301 by using an external hexagonal wrench.

[0041] The locking rod 1304 is located in the inner cavity of the second support housing 1302; the first display screen and the second display screen are respectively provided with mounting positions 24 corresponding to the first support housing 1301 and the second support housing 1302 at their respective connection points; when the first display screen and the second display screen are rotated and flattened, the locking rod 1304 is locked by rotating the connecting hook 1303 to keep the first display screen and the second display screen flattened.

[0042] By connecting the connecting hook 1303 and the locking rod 1304 through the first support housing 1301 and the second support housing 1302 respectively, the locking member 13 forms a standard structural component, which is convenient for installation or maintenance and replacement to be connected to the mounting position 24.

[0043] By using a damping element, the rotational friction between the connecting hook 1303 and the first support housing 1301 is enhanced, ensuring that the connecting hook 1303 remains fixed relative to the first support housing 1301 when the rotational force applied to the rotational drive unit 1305 is stopped by a tool. Due to the rotational connection between the connecting hook 1303 and the first support housing 1301, even if the damping element fails due to fatigue later, as long as the connecting hook 1303 rotates and extends into the inner cavity of the second support housing 1302 to hook and lock the locking rod 1304, the connecting hook 1303 and the locking rod 1304 remain stable and undisconnected without the need for a tool to operate the rotational drive unit 1305, thus ensuring that the first display screen and the second display screen remain flat.

[0044] The mounting position 24 is located inside the first display screen A and the second display screen B, allowing the locking component 13 to be concealed, thus improving the aesthetic appearance of the advertising machine. It also prevents accidental operation by others, such as twisting or turning the drive unit 1305, which could cause the locking mechanism to fail.

[0045] The locking element 13 secures the first display screen A and the second display screen B in a flattened position. The use of a common, readily available, simple, stable, and inexpensive hinge 15 as a rotating connection element makes this advertising machine easy to operate, easy to manufacture, reliable in operation, long in service life, and reduces maintenance.

[0046] The relative positional relationship between the connecting hook 1303 and the hinge 15 is as follows: the virtual plane formed by the rotation of the connecting hook 1303 and the virtual plane formed by the rotation of the first display screen A relative to the second display screen B through the hinge 15 are preferably perpendicular to each other. This ensures that the connecting hook 1303 hooks onto the locking rod 1304 and will not easily detach.

[0047] Please refer to Figures 2 and 3, including the unfolding retainer 14; when the first display screen and the second display screen are rotated and flattened, one end of the unfolding retainer 14 is detachably attached to the first display screen and the other end is detachably attached to the second display screen.

[0048] In some embodiments, the unfolding retainer 14 is a profile plate with a flat end face, which is detachably attached to the first display screen and the second display screen by bolts.

[0049] Please refer to Figures 2 and 6. The device includes a magnetic suction member 23, which is disposed on the first display screen and / or the second display screen. When the first display screen and the second display screen are rotated and folded, the magnetic suction member 23 magnetically attracts and keeps the first display screen and the second display screen folded.

[0050] In some embodiments, the magnetic element 23 is a magnet, disposed in the middle frame 7 on the side of the back cover plate 12 of the first display screen A, and the reinforcing plate 16 connected to the second display screen B is provided with a receiving groove 1610 corresponding to the magnet. In this way, when the first display screen A and the second display screen B are folded, the magnetic element 23 will not abut against the outer wall, thus preventing gaps.

[0051] Please refer to Figures 1-4 and 6, including the reinforcing plate 16; both the first display screen and the second display screen include a display panel 5, a middle frame 7, a side edging plate, and a back cover plate 12.

[0052] The side edging plates located on the left and right sides of the middle frame are the left side edging plate 8 and the right side edging plate 11. The side edging plate located on the top side of the middle frame 7 of the first display screen is the top side edging plate 9. The side edging plate located on the bottom side of the middle frame of the second display screen has threaded connection holes, which serve to connect with the base 2, i.e., the mounting plate 6.

[0053] The display panel 5 includes multiple splicable display panel units 510, which are laid on one end face of the middle frame 7; the back cover plate 12 is connected to the other end face of the middle frame 7; the side edging plate surrounds and connects the sides of the display panel 5, the middle frame 7, and the back cover plate 12; the middle frame 7 is provided with a connection position 710, and the display panel unit 510 is detachably connected to the middle frame 7 through the connection position 710; the reinforcing plate 16 connects the middle frame 7, the side edging plate, and the back cover plate 12 of the first display screen A and / or the second display screen B.

[0054] In some embodiments, there are two reinforcing plates 16, which are specifically connected to the middle frame 7, the left side edge banding plate 8, the right side edge banding plate 11, and the back cover plate 12 of the second display screen B.

[0055] The reinforcing plate 16 can also connect the middle frame 7, the left side edge banding plate 8, the right side edge banding plate 11, and the back cover plate 12 of the first display screen A to reinforce the structure of the first display screen A.

[0056] The reinforcing plate 16 can be a profile plate.

[0057] The display panel unit 510 that makes up the display panel 5 can be disassembled from the connection position 710 and replaced individually for easy maintenance. Preferably, the middle frame 7 has screw connection holes, i.e. connection positions 710, only on the periphery of the display panel unit 510, and the rest of the middle frame 7 is a hollow through hole.

[0058] Preferably, the back cover 12 has ventilation and heat dissipation holes.

[0059] The frame of the first display screen A includes at least a middle frame 7. After the back cover plate 12 is connected to the middle frame 7, it covers the locking member 13, preventing the rotation drive part 1305 from being exposed.

[0060] Please refer to Figure 4. The middle frame 7 located on the rotating connection side of the first display screen and the second display screen has a wiring hole 720.

[0061] The display panel 5 within the first display screen A transmits video data signals and receives power via a cable passing through the wiring hole 720.

[0062] Please refer to Figures 3 and 6. The left side edging plate 8 and the right side edging plate 11 are detachably connected to the middle frame 7. The left and right sides of the middle frame 7 are respectively provided with mounting positions for installing the first support housing 1301 and the second support housing 1302.

[0063] The width of the base 2 is at most equal to the width of the first display screen and the second display screen.

[0064] This design allows multiple advertising machines to be connected side-by-side horizontally using locking components 13 to form a larger display screen.

[0065] Please refer to Figures 3 and 6. The left and right sides of the middle frame 7 and / or the corresponding connection points between the first display screen A and the second display screen B are respectively provided with alignment members 17 and docking positions 1701 that dock with the alignment members 17.

[0066] In some embodiments, the alignment member 17 is a ball-head plunger; the mating position 1701 is a groove corresponding to the ball head of the ball-head plunger.

[0067] When the first display screen A and the second display screen B rotate and flatten relative to each other vertically or when multiple advertising machines are horizontally arranged side by side and connected as a whole using locking parts 13, in order to ensure the flatness of the docking and sufficient alignment, and to achieve good continuity of the displayed image, alignment is achieved by the cooperation of a ball-head plunger with a groove. When the ball-head plunger does not fall into the corresponding groove, the ball head of the plunger will abut against the side wall of the adjacent advertising machine, creating a gap, which is easy to identify and allows the installer to make timely adjustments. At the same time, thanks to the spherical ball head of the plunger and the spring built into the plunger, the appearance of adjacent advertising machines will not be scratched by the ball-head plunger during the alignment stage.

[0068] Please refer to Figures 2 and 3. The second display screen is provided with a base 2 at the end away from the first display screen. The base 2 specifically includes an upper shell 2010 and a bottom plate 2020. The bottom plate 2020 and the upper shell 2010 enclose the inner cavity of the shell.

[0069] The second display screen is detachably connected to the base 2 via the mounting plate 6; the lower end of the base 2 is provided with casters 1; the housing of the base 2 is provided with a speaker 3, a first display screen receiving card 4, a power board 19, a power amplifier 20, a display screen main control card 21, and a second display screen receiving card 22; the base 2 is provided with a sound transmission hole 2011 corresponding to the speaker 3; the base 2 is also provided with an interface seat fixing plate 18.

[0070] The sound transmission hole 2011 is located on the left and right side walls of the upper shell 2010.

[0071] The interface mounting plate 18 can be used to fix video input interfaces, power supply interfaces, and data transmission interfaces.

[0072] Preferably, the caster 1 has an adjustable wheel height, which facilitates fine-tuning of the height when splicing and installing multiple LED advertising machines.

[0073] It is worth noting that the structure of this advertising machine is not limited to the vertical connection of the first display screen A and the second display screen B, and multiple advertising machines are not limited to the horizontal connection; the first display screen A and the second display screen B, which adopt the same structural principle, can be connected horizontally; and multiple advertising machines can be connected vertically.

[0074] Referring to Figures 1-7, this application also provides a conveniently transportable advertising machine, including a first display screen A, a second display screen B, and a hinge 15; the first display screen A and the second display screen B are rotatably connected by the hinge 15 and can be relatively flattened or folded; both the first display screen A and the second display screen B include a display panel 5, a middle frame 7, a splicing part 25, and a side edging plate; the splicing part 25 is located on the left and right sides of the first display screen A and the second display screen B, and the splicing part 25 is provided with a locking member 13; the locking member includes a connecting hook 1303 and a locking rod 1304. The connecting hook 1303 and locking rod 1304 are both located inside the first display screen A and the second display screen B. The connecting hook 1303 is rotatably connected to the first display screen A and the second display screen B. The connecting hook 1303 is provided with a rotating drive part 1305 that exposes the frame of the first display screen A and the second display screen B. Among multiple transportable advertising machines, one transportable advertising machine locks the locking rod 1304 of another transportable advertising machine through the connecting hook 1303 of the splicing part 25 to keep the machine locked, spliced ​​and flat.

[0075] When multiple identical advertising machines or multiple advertising machines with the same splicing part 25 are spliced ​​together, the connecting hooks 1303 set on the left and right sides of the first display screen A and the second display screen B lock the locking rods 1304 on one side of the other identical advertising machines or advertising machines with the same splicing part 25, so as to keep the splicing of multiple advertising machine displays flat and stable.

[0076] In the specification and claims of this application, the terms "comprising / including" and "having / including" and variations thereof are used to specify the presence of the stated features, values, steps or components, but do not exclude the presence or addition of one or more other features, values, steps, components or combinations thereof.

[0077] Some features of this invention are described in different embodiments for clarity; however, these features may also be described in combination in a single embodiment. Conversely, some features of this invention are described only in a single embodiment for brevity; however, these features may also be described individually or in any suitable combination in different embodiments.

[0078] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements 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. An advertising machine that is easy to transport, characterized in that, The device includes a first display screen, a second display screen, a hinge, and a locking component. The first and second display screens are rotatably connected by the hinge and can be relatively flattened or folded. The locking component includes a connecting hook and a locking rod. The connecting hook is rotatably connected to the first display screen. The connecting hook has a rotation drive part that exposes the frame of the first display screen. The locking rod is located on the second display screen. Both the connecting hook and the locking rod are located at the corresponding connection points of the first and second display screens. When the first and second display screens are rotated flattened, the locking rod in the second display screen is locked by the connecting hook in the first display screen to keep the first and second display screens flattened.

2. The conveniently transportable advertising machine according to claim 1, characterized in that, The locking component further includes a first support housing and a second support housing; the connecting hook is disposed in the inner cavity of the first support housing and is rotatably connected to the first support housing; the rotation drive part is exposed outside the first support housing. The locking rod is located inside the second support housing; the first display screen and the second display screen are respectively provided with mounting positions corresponding to the first support housing and the second support housing at their respective connection points.

3. The conveniently transportable advertising machine according to claim 1, characterized in that, It includes an unfolding retainer; when the first display screen and the second display screen are rotated and flattened, one end of the unfolding retainer is detachably attached to the first display screen and the other end is detachably attached to the second display screen.

4. The conveniently transportable advertising machine according to claim 1, characterized in that, Includes a magnetic suction component, which is disposed on the first display screen and / or the second display screen. When the first display screen and the second display screen are rotated and folded, the magnetic suction component magnetically attracts them, keeping the first display screen and the second display screen folded.

5. The conveniently transportable advertising machine according to claim 1, characterized in that, The system includes a reinforcing plate; both the first and second display screens include a display panel, a middle frame, side edging plates, and a back cover plate; the display panel includes multiple splicable display panel units, laid on one end face of the middle frame; the back cover plate is connected to the other end face of the middle frame; the side edging plates surround and connect the sides of the display panel, middle frame, and back cover plate; the middle frame has a connection position, through which the display panel units are detachably connected to the middle frame; the reinforcing plate connects the middle frame, side edging plates, and back cover plate of the first and / or second display screens.

6. The conveniently transportable advertising machine according to claim 5, characterized in that, The middle frame located on the rotating connection side of the first display screen and the second display screen has a wiring hole.

7. The conveniently transportable advertising machine according to claim 5, characterized in that, The side edging plate is detachably connected to the middle frame; the left and right sides of the middle frame are respectively provided with mounting positions for installing the locking components.

8. The conveniently transportable advertising machine according to claim 5, characterized in that, Alignment components and mating positions that mate with the alignment components are respectively provided on the left and right sides of the middle frame and / or at the corresponding connection points between the first display screen and the second display screen.

9. An advertising machine that is easy to transport according to claim 8, characterized in that, The alignment component is a ball-head plunger; the mating position is a groove corresponding to the ball head of the ball-head plunger.

10. An advertising machine that is easy to transport according to claim 1, characterized in that, The second display screen has a base at the end away from the first display screen, and the second display screen is detachably connected to the base via a mounting plate; the lower end of the base is provided with casters; the housing of the base is provided with a speaker, a first display screen receiving card, a power board, a power amplifier, a display screen main control card, and a second display screen receiving card; the base is provided with a sound transmission hole corresponding to the speaker; the base is also provided with an interface base fixing plate.

11. An advertising machine that is easy to transport according to claim 10, characterized in that, The width of the base is at most equal to the width of the first display screen and the second display screen.

12. The conveniently transportable advertising machine according to claim 2, characterized in that, A damping element is provided at the rotatable connection between the connecting hook and the first support housing.

13. An advertising machine that is easy to transport, characterized in that, The system includes a first display screen, a second display screen, and a hinge. The first and second display screens are rotatably connected via the hinge and can be relatively flattened or folded. Each of the first and second display screens includes a display panel, a middle frame, a splicing part, and side edging plates. The splicing part is located on the left and right sides of the first and second display screens and is equipped with locking components. The locking components include a connecting hook and a locking rod. The connecting hook and locking rod are both located inside the first and second display screens. The connecting hook is rotatably connected to the first and second display screens. The connecting hook has a rotation drive part that protrudes from the frame of the first and second display screens. Among multiple transportable advertising machines, one transportable advertising machine locks the locking rod of another transportable advertising machine through the connecting hook of the splicing part, keeping the spliced ​​and flattened machine locked.

14. The conveniently transportable advertising machine according to claim 13, characterized in that, The system includes a reinforcing plate and a back cover plate; the display panel comprises multiple splicable display panel units, laid on one end face of the middle frame; the back cover plate is connected to the other end face of the middle frame; the side edging plate surrounds and connects the sides of the display panel, the middle frame, and the back cover plate; the middle frame has a connecting position, through which the display panel unit is detachably connected to the middle frame; the reinforcing plate connects the middle frame, side edging plate, and back cover plate of the first display screen and / or the second display screen; the second display screen has a base at the end away from the first display screen, and the second display screen is detachably connected to the base through a mounting plate.

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