Advertising machine convenient to transport

Abstract

The utility model discloses an advertising machine convenient to transport. The advertising machine comprises a first display screen, a second display screen, a hinge and a locking piece. The first display screen and the second display screen are rotationally connected through the hinge and can be relatively flattened or folded; the locking piece comprises a connecting hook and a locking rod; the connecting hook is rotationally connected with the first display screen; the connecting hook is provided with a rotation driving part which is exposed out of the frame body of the first display screen; the lock rod is arranged on the second display screen; the connecting hook and the locking rod are arranged at the corresponding joint of the first display screen and the second display screen; and after the first display screen and the second display screen are rotated to be flattened, locking a locking rod in the second display screen through a connecting hook in the first display screen, and keeping the first display screen and the second display screen to be flattened. Comprising an unfolding retainer; one end of the display screen is detachably connected with the first display screen in an attached mode, and the other end of the display screen is detachably connected with the second display screen in an attached mode.

Description

Technical Field

[0001] The present application relates to the technical field of advertising machine devices, and in particular to an advertising machine that is easy to transport. Background Art

[0002] In order to facilitate transportation, the prior art discloses a multi-purpose LED display advertising machine disclosed in the patent document with patent application number 202311207941.8, in which the upper display unit and the lower display unit are hingedly folded or unfolded through several foldable and self-locking hinge components on the advertising machine screen.

[0003] However, the hinge assembly contains numerous parts, and the structure of each part is complex. From the perspective of the mechanical field, a hinge assembly with such characteristics is more prone to failure, because its handle switch, multiple sets of slots, rotating holes, and ear plates constitute a structure similar to the activity of a cam group, which needs to overcome the dead point of rotation and the elastic force of the tensioning spring, resulting in the upper display unit and the lower display unit not rotating smoothly relative to each other; it relies on friction and the elastic force of the tensioning spring to maintain the predetermined angle, and has poor stability; after repeated use, it is prone to fatigue damage, and problems such as difficulty in rotation and folding occur, and the hinge assembly needs to be frequently replaced for maintenance. Utility Model Content

[0004] The present invention mainly aims at the above problems and proposes an advertising machine that is easy to transport, aiming to solve the technical problems in the background technology.

[0005] To achieve the above-mentioned objectives, the present invention provides an advertising machine that is easy to transport, including a first display screen, a second display screen, a hinge, and a locking member; the first display screen and the second display screen are rotatably connected by the hinge and can be relatively flattened or folded; the locking member includes a connecting hook and a locking rod; the connecting hook is rotatably connected to the first display screen; the connecting hook is provided with a rotation driving portion of the frame that exposes the first display screen; the locking rod is provided on the second display screen; and the connecting hook and the locking rod are both provided at the corresponding connection points between the first display screen and the second display screen; when the first display screen and the second display screen are rotated and 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 flat.

[0006] Furthermore, the locking member also includes a first supporting shell and a second supporting shell; the connecting hook is arranged in the inner cavity of the first supporting shell and is rotatably connected to the first supporting shell; the rotation driving part is exposed from the first supporting shell; the locking rod is arranged in the inner cavity of the second supporting shell; the corresponding connection points of the first display screen and the second display screen are provided with installation positions corresponding to the first supporting shell and the second supporting shell.

[0007] Furthermore, it includes an unfolding retaining member; when the first display screen and the second display screen are rotated and flattened, one end of the unfolding retaining member is detachably connected to the first display screen, and the other end is detachably connected to the second display screen.

[0008] Furthermore, it includes a magnetic component, which is arranged 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 component magnetically adsorbs to keep the first display screen and the second display screen folded.

[0009] Furthermore, it includes a reinforcement plate; the first display screen and the second display screen both include a display panel, a middle frame, a side edging plate, and a back cover plate; the display panel includes a plurality of splicable display panel units, which are 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 enclose and connect 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 units are detachably connected to the middle frame through the connection position; the reinforcement plate is connected to the middle frame, the side edging plates, and the back cover plate of the first display screen and / or the second display screen.

[0010] Furthermore, a wiring hole is provided in the middle frame body located at the rotation connection side of the first display screen and the second display screen.

[0011] Furthermore, the side edging plates are detachably connected to the middle frame; and installation positions for installing the locking member are respectively provided on the left and right sides of the middle frame.

[0012] 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 docked with the alignment members.

[0013] Furthermore, the alignment member is a ball plunger; and the docking position is a groove corresponding to the ball head of the ball plunger.

[0014] Furthermore, a base is provided at one end of the second display screen away from the first display screen, and the second display screen is detachably connected to the base through a mounting plate; casters are provided at the lower end of the base; a speaker, a first display screen receiving card, a power supply board, a power amplifier, a display screen main control card, and a second display screen receiving card are provided in the shell of the base; a sound hole is provided in the base corresponding to the speaker; and the base is also provided with an interface seat fixing plate.

[0015] Furthermore, the width of the base is at most equal to the width of the first display screen and the second display screen.

[0016] Furthermore, a damping member is provided at the rotational connection between the connecting hook and the first supporting shell.

[0017] The present application also provides an advertising machine that is easy to transport, including a first display screen, a second display screen, and a hinge; the first display screen and the second display screen are rotatably connected by the hinge and can be relatively flattened or folded; the first display screen and the second display screen both include a display panel, a middle frame, a splicing part, and a side edging panel; the splicing part is arranged on the left and right sides of the first display screen and the second display screen, and the splicing part is provided with a locking part; the locking part includes a connecting hook and a locking rod; the connecting hook and the locking rod are both arranged in the first display screen and the second display screen; the connecting hook is rotatably connected to the first display screen and the second display screen; the connecting hook is provided with a rotating drive part that exposes the first display screen and the second display screen frame; among multiple advertising machines that are easy to transport, one advertising machine that is easy to transport locks the locking rod of another advertising machine that is easy to transport through the connecting hook of the splicing part to keep the locked, spliced ​​and flattened.

[0018] Furthermore, it includes a reinforcing plate and a back cover plate; the display panel includes a plurality of splicable display panel units, which are 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 enclose and connect the sides of the display panel, middle frame and back cover plate; the middle frame is provided with a connecting position, and the display panel units are detachably connected to the middle frame through the connecting position; the reinforcing plate is connected to the middle frame, side edging plates and back cover plate of the first display screen and / or the second display screen; the second display screen is provided with 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.

[0019] Compared to existing technologies, the present invention provides a conveniently transportable advertising machine. Its first mounting position allows it to be located within the first and second display screens, concealing the locking member, thereby enhancing the display's aesthetics. This also prevents misoperation by tampering with the rotating drive unit, which could cause the locking mechanism to fail. The locking member secures the first and second display screens in a flat position. Furthermore, the use of a readily available, simple, stable, and inexpensive hinge as the rotating connector makes this advertising machine easy to operate, manufacture, operate reliably, and maintain a long service life, minimizing maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of an advertising machine that is easy to transport.

[0021] Figure 2 This is a structural diagram of an advertising machine that is easy to transport from another perspective in this application.

[0022] Figure 3 This is a schematic diagram of the structural decomposition of an advertising machine that is easy to transport.

[0023] Figure 4 This is a schematic diagram of the middle frame structure of an advertising machine that is easy to transport.

[0024] Figure 5 This is a schematic diagram of the locking structure of an advertising machine that is easy to transport in this application.

[0025] Figure 6 This is a schematic diagram of the partial structure of an advertising machine that is easy to transport in this application.

[0026] Figure 7 This is a schematic diagram of the partial structural decomposition of an advertising machine that is easy to transport in this application from another perspective.

[0027] Reference numerals shown in the figure: 1, caster; 2, base; 2010, upper shell; 2011, sound hole; 2020, bottom plate; 3, speaker; 4, first display screen receiving card; 5, display panel; 510, display panel unit; 6, mounting plate; 7, middle frame; 710, connection position; 720, wiring hole; 8, left side edging plate; 9, top side edging plate; 11, right side edging plate; 12, back cover; 13, locking member; 1301, first support shell; 1302 , second supporting shell; 1303, connecting hook; 1304, locking rod; 1305, rotation drive unit; 14, unfolding retaining member; 15, hinge; 16, reinforcement plate; 1610, accommodating groove; 17, alignment member; 1701, docking position; 18, interface seat fixing plate; 19, power supply board; 20, power amplifier; 21, display screen main control card; 22, second display screen receiving card; 23, magnetic member; 24, installation position; 25, splicing part; A, first display screen; B, second display screen. DETAILED DESCRIPTION

[0028] 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 making creative work are within the scope of protection of the present invention. It is understood that the drawings are only provided for reference and illustration purposes and are not used to limit the present invention. The connection relationship shown in the drawings is only for the convenience of clear description and does not limit the connection method.

[0029] 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 intermediate component at the same time. Unless otherwise defined, all technical and scientific terms used in this document have the same meaning as those generally understood by technicians in the technical field of the present invention. It should also be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The terms used in this document in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0030] 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., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate 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.

[0031] Please refer to Figure 1 - Figure 6 This embodiment provides an advertising machine that is easy to transport, 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 by the hinge 15, and when flattened, the display planes are located on the same plane, thereby increasing the display area;

[0032] Or when folded, the outer contours overlap, which is convenient for transportation and delivery. Compared with traditional advertising machines, the packaging volume is reduced and it can be used as a double-sided advertising machine;

[0033] 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, the display planes are located in the same plane, which is approximately the same plane. Because it is difficult to ensure zero error in the production of display screen products combined with assembly; the display planes of the first display screen A and the second display screen B are located in the same plane when they are flattened, which is only an ideal state used to describe the positional relationship; the same applies when the two are folded, and the outer contours overlap, which is approximately overlap.

[0034] Example 1

[0035] 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 of the frame body that is exposed from the first display screen; and the locking rod 1304 is provided on the second display screen B.

[0036] Example 2

[0037] The locking member 13 includes a first supporting shell 1301, a second supporting shell 1302, a connecting hook 1303, and a locking rod 1304; the connecting hook 1303 is disposed in the inner cavity of the first supporting shell 1301 and is rotatably connected to the first supporting shell 1301, and a damping member (not shown) is provided at the rotatable connection;

[0038] The connecting hook 1303 is provided with a rotation driving portion 1305 exposed from the first supporting shell 1301;

[0039] In some embodiments, the rotation driving portion 1305 may be an internal hexagonal screw hole, and an external hexagonal wrench may be used to drive the connecting hook 1303 to rotate relative to the first supporting shell 1301 .

[0040] The locking rod 1304 is arranged in the inner cavity of the second supporting shell 1302; the corresponding connection points of the first display screen and the second display screen are provided with installation positions 24 corresponding to the first supporting shell 1301 and the second supporting shell 1302; 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 flat.

[0041] By connecting the connecting hook 1303 and the locking rod 1304 through the first supporting shell 1301 and the second supporting shell 1302 respectively, the locking member 13 forms a standard structural member, which is easy to connect to the installation position 24 for installation or maintenance and replacement.

[0042] The damping element enhances the rotational friction between the connecting hook 1303 and the first supporting shell 1301, ensuring that the connecting hook 1303 remains fixed relative to the first supporting shell 1301 when the tool stops applying the rotational force to the rotation drive unit 1305. Due to the rotational connection between the connecting hook 1303 and the first supporting shell 1301, even if the damping element later experiences fatigue failure, as long as the connecting hook 1303 rotates and extends into the inner cavity of the second supporting shell 1302, unhooking and locking the locking rod 1304, without using a tool to rotate the rotation drive unit 1305, the connecting hook 1303 and the locking rod 1304 will remain stable and will not release, ensuring that the first and second display screens remain flat.

[0043] The mounting position 24 is located inside the first display screen A and the second display screen B, and the locking member 13 can be hidden, so that the appearance of the advertising machine is improved, and the misoperation of others is prevented, and the rotating driving part 1305 is prevented from being twisted, so that the locking is not invalidated.

[0044] By the locking member 13, the first display screen A and the second display screen B are fixed and kept flat, and the hinge 15 which is common, convenient to purchase, simple in structure, stable in operation, low in cost and long in service life is used as the rotating connecting member, so that the advertising machine is convenient to operate, easy to produce and manufacture, reliable in operation and long in service life.

[0045] The relative position relationship between the connecting hook 1303 and the hinge 15 is that the virtual plane formed by the rotation of the connecting hook 1303 is perpendicular to the virtual plane formed by the rotation of the first display screen A relative to the second display screen B through the hinge 15, so that the connecting hook 1303 can be hooked on the locking rod 1304 and cannot be easily separated.

[0046] Please refer to Figure 2 and Figure 3 , which comprise an unfolding retaining member 14; when the first display screen and the second display screen are unfolded, one end of the unfolding retaining member 14 is detachably and abuttingly connected with the first display screen, and the other end is detachably and abuttingly connected with the second display screen.

[0047] In some embodiments, the unfolding retaining member 14 is a profile plate body with one flat end surface, which is detachably and abuttingly connected with the first display screen and the second display screen through bolts.

[0048] Please refer to Figure 2 and Figure 6 , which comprise a magnetic attraction member 23 arranged on the first display screen and / or the second display screen, and the magnetic attraction member 23 is magnetically attracted to keep the first display screen and the second display screen folded when the first display screen and the second display screen are folded.

[0049] In some embodiments, the magnetic attraction member 23 is a magnet, which is arranged 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 with 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 attraction member 23 cannot be resisted by the outer wall and cause a gap.

[0050] Please refer to Figure 1 - Figure 4 , Figure 6 , which comprise a reinforcing plate 16; the first display screen and the second display screen each comprise a display panel 5, a middle frame 7, a side edge wrapping plate and a back cover plate 12.

[0051] The side edge wrapping plates located on the left and right sides of the middle frame are a left side edge wrapping plate 8 and a right side edge wrapping plate 11, and the side edge wrapping plate located on the top side of the middle frame 7 of the first display screen is a top side edge wrapping plate 9; the side edge wrapping plate located on the bottom side of the middle frame of the second display screen is provided with a threaded connection hole, which plays a connecting role with the base 2, that is, the mounting plate 6.

[0052] The display panel 5 includes a plurality of splicable display panel units 510, which are laid on one end surface of the middle frame 7; the back cover plate 12 is connected with the other end surface of the middle frame 7; the side edge wrapping plates surround and connect the side edges 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 with the middle frame 7 through the connection position 710; the reinforcing plate 16 connects the middle frame 7, the side edge wrapping plate and the back cover plate 12 of the first display screen A and / or the second display screen B.

[0053] In some embodiments, the number of reinforcing plates 16 is two, which specifically connect the middle frame 7, the left side edge wrapping plate 8 and the right side edge wrapping plate 11 of the second display screen B, and the back cover plate 12.

[0054] The reinforcing plate 16 can also connect the middle frame 7, the left side edge wrapping plate 8 and the right side edge wrapping plate 11 of the first display screen A, and the back cover plate 12, to reinforce the structure of the first display screen A.

[0055] The reinforcing plate 16 can be a profiled plate.

[0056] The display panel unit 510 constituting the display panel 5 can be replaced individually by being detached from the connection position 710, which is convenient for maintenance. Preferably, the middle frame 7 only has screw connection hole positions corresponding to the circumferential edges of the display panel unit 510, that is, the connection position 710, and the rest of the middle frame 7 is hollow.

[0057] Preferably, the back cover plate 12 is provided with a ventilation and heat dissipation hole.

[0058] The frame of the first display screen A includes at least the middle frame 7. After the back cover plate 12 is connected with the middle frame 7, the locking member 13 is covered, and the rotating driving part 1305 is blocked from being exposed.

[0059] Please refer to Figure 4 The middle frame 7 body located at the rotating connection side of the first display screen and the second display screen is provided with a wiring hole 720.

[0060] The display panel 5 in the first display screen A transmits video data signals and power supply through the cable passing through the wiring hole 720.

[0061] Please refer to Figure 3 and Figure 6The 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 installation positions for installing the first support shell 1301 and the second support shell 1302.

[0062] The width of the base 2 is at most equal to the width of the first display screen and the second display screen.

[0063] With this design, multiple advertising machines can be arranged side by side horizontally and connected as a whole using the locking member 13 to form a larger display screen.

[0064] Please refer to Figure 3 and Figure 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 docked with the alignment members 17.

[0065] In some embodiments, the alignment member 17 is a ball plunger; the docking position 1701 is a groove corresponding to the ball head of the ball plunger.

[0066] When the first display screen A and the second display screen B are rotated relative to each other and flattened to connect vertically, or when multiple advertising machines are horizontally arranged side by side and connected together using the locking member 13, in order to ensure the flatness of the connection and sufficient alignment so that the display screens also have good coherence, the ball head plunger cooperates with the groove to align the position. When the ball head plunger does not fall into the corresponding groove, the ball head of the ball head plunger will hit the side wall of the adjacent advertising machine, creating a gap for easy identification and allowing the installer to make timely adjustments. At the same time, due to the spherical ball head of the ball head plunger and the built-in spring of the plunger, the two adjacent advertising machines will not be scratched by the ball head plunger during the alignment stage.

[0067] Please refer to Figure 2 and Figure 3 A base 2 is provided at one end of the second display screen 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 an inner cavity of the shell.

[0068] The second display screen is detachably connected to the base 2 via a mounting plate 6; a caster 1 is provided at the lower end of the base 2; a speaker 3, a first display screen receiving card 4, a power supply board 19, a power amplifier 20, a display screen main control card 21, and a second display screen receiving card 22 are provided in the shell of the base 2; a sound hole 2011 is provided on the base 2 corresponding to the speaker 3; the base 2 is also provided with an interface seat fixing plate 18.

[0069] The sound holes 2011 are located on the left and right side walls of the upper shell 2010 .

[0070] The interface seat fixing plate 18 can be used to fix the video input interface, power supply interface, and data transmission interface.

[0071] Preferably, the caster 1 can adjust the height of the wheel from the ground, which is convenient for fine-tuning the height when multiple LED advertising machines are spliced ​​and installed.

[0072] It is worth noting that in the structure of this advertising machine, the first display screen A and the second display screen B are not limited to being connected up and down, and multiple advertising machines are not limited to being connected left and right; the first display screen A and the second display screen B using the same structural principle can be connected left and right; multiple advertising machines can be connected up and down.

[0073] Please refer to Figure 1 - Figure 7 The present application also provides an advertising machine that is easy to transport, 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; the first display screen A and the second display screen B each include a display panel 5, a middle frame 7, a splicing part 25, and a side edging plate; the splicing part 25 is provided 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 The connecting hook 1303 and the locking rod 1304 are both provided in 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 portion 1305 that exposes the frame of the first display screen A and the second display screen B; among multiple conveniently transported advertising machines, one conveniently transported advertising machine locks the locking rod 1304 of another conveniently transported advertising machine through the connecting hook 1303 of the splicing part 25, keeping the locked, spliced ​​and flattened.

[0074] When multiple identical advertising machines or multiple advertising machines with the same splicing portion 25 design are spliced ​​together, the connection hooks 1303 provided on the left and right sides of the first display screen A and the second display screen B are used to lock the locking rods 1304 on one of the left and right sides of the other identical advertising machines or advertising machines with the same splicing portion 25 design, thereby keeping the display screens of the multiple advertising machines flat and stable.

[0075] In the description and claims of this application, the words "include / comprise" and the words "have / include" and their variations are used to specify the existence of stated features, values, steps or components, but do not exclude the existence or addition of one or more other features, values, steps, components or their combinations.

[0076] Some features of the present invention are described in separate embodiments for clarity of explanation, however, these features may also be described in combination in a single embodiment. Conversely, some features of the present invention are described in a single embodiment for brevity, however, these features may also be described in different embodiments individually or in any suitable combination.

[0077] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An advertising machine that is easy to transport, characterized in that: The display screen includes a first display screen, a second display screen, a hinge, and a locking member; the first display screen and the second display screen are rotatably connected by the hinge and can be relatively flattened or folded; the locking member includes a connecting hook and a locking rod; the connecting hook is rotatably connected to the first display screen; the connecting hook is provided with a rotation drive portion of a frame that exposes the first display screen; the locking rod is provided on the second display screen; and the connecting hook and the locking rod are both provided at the corresponding connection points between the first display screen and the second display screen; when the first display screen and the second display screen are rotated and 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 flat.

2. The conveniently transportable advertising machine according to claim 1, characterized in that: The locking member further includes a first supporting shell and a second supporting shell; the connecting hook is disposed in the inner cavity of the first supporting shell and is rotatably connected to the first supporting shell; the rotation driving portion is exposed from the first supporting shell; The locking rod is arranged in the inner cavity of the second supporting shell; the corresponding connecting parts of the first display screen and the second display screen are both provided with installation positions corresponding to the first supporting shell and the second supporting shell.

3. The easily transportable advertising machine according to claim 1, characterized in that: It comprises an unfolding retaining member; when the first display screen and the second display screen are rotated and flattened, one end of the unfolding retaining member is detachably connected to the first display screen, and the other end is detachably connected to the second display screen.

4. The easily transportable advertising machine according to claim 1, characterized in that: A magnetic attraction component is included, and the magnetic attraction component is arranged 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 attraction component magnetically attracts and keeps the first display screen and the second display screen folded.

5. The easily transportable advertising machine according to claim 1, characterized in that: It includes a reinforcing plate; the first display screen and the second display screen both include a display panel, a middle frame, a side edging plate, and a back cover plate; the display panel includes a plurality of splicable display panel units, which are 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 enclose and connect the sides of the display panel, the middle frame, and the back cover plate; the middle frame is provided with a connecting position, and the display panel units are detachably connected to the middle frame through the connecting position; the reinforcing plate is connected to the middle frame, the side edging plates, and the back cover plate of the first display screen and / or the second display screen.

6. The easily transportable advertising machine according to claim 5, characterized in that: The middle frame body located at the rotation connection side of the first display screen and the second display screen is provided with a wiring hole.

7. The easily transportable advertising machine according to claim 5, characterized in that: The side edging plates are detachably connected to the middle frame; and mounting positions for mounting the locking members are respectively provided on the left and right sides of the middle frame.

8. The easily transportable advertising machine according to claim 5, characterized in that: The left and right sides of the middle frame and / or the corresponding joints between the first display screen and the second display screen are respectively provided with alignment members and docking positions docked with the alignment members.

9. The easily transportable advertising machine according to claim 8, characterized in that: The alignment member is a ball plunger; the docking position is a groove corresponding to the ball head of the ball plunger.

10. The easily transportable advertising machine according to claim 1, characterized in that: A base is provided at one end of the second display screen away from the first display screen, and the second display screen is detachably connected to the base through a mounting plate; casters are provided at the lower end of the base; 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 are provided in the shell of the base; a sound hole is provided in the base corresponding to the speaker; and the base is also provided with an interface seat fixing plate.

11. The easily transportable advertising machine 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 easily transportable advertising machine according to claim 2, characterized in that: A damping member is provided at the rotational connection between the connecting hook and the first supporting shell.

13. An advertising machine that is easy to transport, characterized in that: It includes a first display screen, a second display screen, and a hinge; the first display screen and the second display screen are rotatably connected by the hinge and can be relatively flattened or folded; the first display screen and the second display screen both include a display panel, a middle frame, a splicing part, and a side edging panel; the splicing part is arranged on the left and right sides of the first display screen and the second display screen, and the splicing part is provided with a locking part; the locking part includes a connecting hook and a locking rod; the connecting hook and the locking rod are both arranged in the first display screen and the second display screen; the connecting hook is rotatably connected to the first display screen and the second display screen; the connecting hook is provided with a rotating drive part that exposes the first display screen and the second display screen frame; among multiple advertising machines that are easy to transport, one advertising machine that is easy to transport locks the locking rod of another advertising machine that is easy to transport through the connecting hook of the splicing part to keep the locked, spliced ​​and flattened.

14. The easily transportable advertising machine according to claim 13, characterized in that: It includes a reinforcing plate and a back cover plate; the display panel includes a plurality of splicable display panel units, which are 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 connecting position, and the display panel units are detachably connected to the middle frame through the connecting position; the reinforcing plate is connected to the middle frame, side edging plates and back cover plate of the first display screen and / or the second display screen; the second display screen is provided with 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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