Advertising machine and handling device

Abstract

The application provides an advertising machine and a carrying device, the advertising machine comprising a display structure and a conversion plate; the display structure is used for displaying an image; the conversion plate comprises an interface; wherein the conversion plate is detachably arranged with the display structure, and the interface is an output interface for external power supply. The conversion plate is detachably connected, and when the interface fails, the interface can be maintained by detaching the conversion plate, so that the interface is convenient to replace.

Description

Technical Field

[0001] This utility model relates to the field of advertising equipment technology, and in particular to an advertising machine and a conveying device. Background Technology

[0002] Advertising machines are a new-era method of information dissemination, using images, videos, music, and other means to spread information. They are widely used in densely populated areas such as shopping malls, train stations, and airports. In addition to advertising, most advertising machines have interfaces. Frequent use and improper plugging and unplugging of these interfaces can easily lead to damage or broken contacts. Faulty interfaces are difficult to repair or replace, affecting the regular broadcasting of the advertising machine. Utility Model Content

[0003] This application provides an advertising machine and a handling device, which aims to solve the problem that the interfaces of the advertising machine are difficult to repair and replace in the prior art.

[0004] To solve the aforementioned technical problems, the first technical solution provided in this application is: an advertising machine, comprising:

[0005] Display structure, used to display images;

[0006] Adapter board, including interfaces;

[0007] The adapter board and display structure are detachable, and the interface is an output interface used for external power supply.

[0008] In some embodiments, the interface includes at least one of a universal serial bus interface and a DC power socket.

[0009] In some embodiments, the advertising machine further includes a bracket; a slot is provided on the side of the display structure; the bracket is at least partially disposed in the slot; an adapter plate is connected to the bracket and disposed in the slot; a contact is provided on the side wall of the slot, and the contact abuts against the pads of the adapter plate.

[0010] In some embodiments, the adapter plate and the bracket are detachably connected.

[0011] In some embodiments, the adapter plate and the bracket are connected by threads.

[0012] In some embodiments, the bracket and the display structure are detachably connected.

[0013] In some embodiments, the bracket and the display structure are connected by at least one of the following methods: push-pull slide, snap-fit, thread, magnetic attraction, and rotary lock.

[0014] In some embodiments, the adapter plate is located within the space enclosed by the display structure and the bracket, and the interface is exposed on the bracket; wherein, the slot extends through one side surface of the display structure; the bracket is inserted into the slot and covers the opening of the slot; or, the slot is located at the connection between two adjacent surfaces of the display structure and extends through both adjacent surfaces of the display structure; the bracket covers the opening of the slot and covers the outer edge of the slot; the portion of the bracket covering the outer edge of the slot is threadedly connected to the display structure.

[0015] In some embodiments, the advertising machine further includes a motherboard; the motherboard is disposed on the back of the display structure and is detachably connected to the display structure; the motherboard supplies power to the adapter board; the display structure and the adapter board operate independently.

[0016] To solve the above-mentioned technical problems, the second technical solution provided in this application is: to provide a handling device. The handling device includes a trolley and the aforementioned advertising machine.

[0017] The beneficial effects of this application are as follows: Unlike the prior art, this application provides an advertising machine and a conveying device. The advertising machine includes a display structure and an adapter plate. The display structure is used to display images. The adapter plate includes an interface. The adapter plate and the display structure are detachably connected, and the interface is an output interface for supplying power to the outside. Because the adapter plate is detachably connected, the interface can be repaired by disassembling the adapter plate in case of failure, facilitating interface replacement. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0019] Figure 1 This application provides a schematic diagram of the interface and motherboard structure in the prior art.

[0020] Figure 2 This is a front structural diagram of the first embodiment of the advertising machine provided in this application;

[0021] Figure 3 This is a schematic diagram of the rear structure assembly of the first embodiment of the advertising machine provided in this application;

[0022] Figure 4 This is a schematic diagram of the disassembly and assembly of the rear structure of the first embodiment of the advertising machine provided in this application;

[0023] Figure 5 This is a side view of the assembly of the advertising machine according to the first embodiment of this application;

[0024] Figure 6 This is a schematic diagram of the contact points and pads of the advertising machine provided in this application;

[0025] Figure 7 This is a schematic diagram of the sink of the advertising machine provided in this application;

[0026] Figure 8 This is a schematic diagram of the mainboard of the advertising machine provided in this application;

[0027] Figure 9 This is a schematic diagram of the conveying device provided in this application.

[0028] Reference numerals: 1. Advertising machine; 2. Transport device; 3. Trolley; 10. Display structure; 11. Slot; 12. Slot; 111. Contact point; 20. Adapter board; 21. Interface; 22. Solder pad; 30. Bracket; 40. Main board. Detailed Implementation

[0029] The embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0030] In the following description, specific details such as particular system architectures, interfaces, and technologies are presented for illustrative purposes rather than for limiting purposes, in order to provide a thorough understanding of this application.

[0031] The technical solutions of the embodiments of this application 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 this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0032] The terms "first," "second," and "third" in this application are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified. All directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationships and movements between components in a specific orientation (as shown in the figures). If the specific orientation changes, the directional indications also change accordingly. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or devices.

[0033] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0034] The present application will now be described in detail with reference to the accompanying drawings and embodiments.

[0035] Please see Figure 1 , Figure 1 This is a schematic diagram of the interface and motherboard structure in the prior art provided in this application.

[0036] like Figure 1 As shown, in existing technologies, the interface is located on the motherboard and is an integral part of the motherboard structure. This solution leads to frequent and improper plugging and unplugging of the female connector and the male connector of the charging cable, making the interface prone to damage. Furthermore, because the interface is an integral part of the motherboard structure, it is inconvenient for repair and replacement.

[0037] Please see Figures 2 to 5 , Figure 2 This is a front structural diagram of the first embodiment of the advertising machine provided in this application; Figure 3 This is a schematic diagram of the rear structure assembly of the first embodiment of the advertising machine provided in this application; Figure 4 This is a schematic diagram of the disassembly and assembly of the rear structure of the first embodiment of the advertising machine provided in this application; Figure 5 This is a side view of the assembly of the advertising machine according to the first embodiment of this application.

[0038] To solve the above-mentioned technical problems, this application provides an advertising machine 1, which includes a display structure 10 and an adapter board 20; the display structure 10 is used to display images; the adapter board 20 includes an interface 21; wherein the adapter board 20 and the display structure 10 are detachably configured, and the interface 21 is an output interface for supplying power to the outside.

[0039] The display structure 10 can be an LCD (Liquid Crystal Display), OLED (Organic Light Emitting Diode), or other similar structures; the choice is not limited here and depends on actual needs. The display structure 10 is used to play advertising content, displaying promotional advertisements to the outside world through multimedia formats such as video and music.

[0040] The adapter board 20 is a circuit board with an interface 21 soldered on it. The adapter board 20 integrates the relevant circuits of the interface 21 and supplies power to the interface 21, enabling the interface 21 to supply power to external devices.

[0041] The adapter board 20 is detachably connected to the display structure 10. In case of interface 21 failure, the adapter board 20 with a normal interface 21 can be replaced by disassembly to restore the power supply function of the advertising machine 1. By modularizing the interface 21 and integrating the relevant circuits of the interface 21 into the detachable adapter board 20, the replacement and maintenance of the interface 21 are more convenient, reducing the maintenance cost of the advertising machine 1 and extending its service life.

[0042] There should be at least one adapter board 20; there is no restriction here, and the choice should be made according to actual needs.

[0043] For example, there are multiple adapter boards 20. Multiple adapter boards 20 are disposed on the display structure 10, and each adapter board 20 has an interface 21 soldered on it. If the interface 21 fails, only the adapter board 20 corresponding to the failed interface 21 can be replaced, while the adapter boards 20 that are working properly are retained, which reduces the maintenance cost of the advertising machine 1.

[0044] For example, there is one adapter board 20.

[0045] Interface 21 can be at least one; there is no restriction here, and the choice can be made according to actual needs.

[0046] For example, there is one interface 21 and one adapter board 20, that is, one interface 21 is provided on one adapter board 20.

[0047] For example, there are multiple interfaces 21. At least one interface 21 is provided on the adapter board 20.

[0048] Multiple interfaces 21 are soldered onto the same adapter board 20, which is set on the display structure 10. The installation of the adapter board 20 is simpler, reducing the assembly difficulty of the advertising machine 1.

[0049] In one specific embodiment, an adapter plate 20 is provided with two interfaces 21. The two interfaces 21 are arranged side by side along the plate surface of the adapter plate 20, which reduces the space occupied by the interfaces 21, helps to thin the advertising machine 1, and increases the aesthetics of the advertising machine 1.

[0050] In some embodiments, interface 21 includes at least one of a Universal Serial Bus (USB) interface and a Direct Current (DC) socket.

[0051] Universal Serial Bus (USB) interface, including USB Type-A female and USB Type-C female.

[0052] DC power outlets, including standard round DC outlets and miniature DC outlets in various inner and outer diameter sizes.

[0053] Interface 21 includes at least one of the aforementioned USB interface and DC interface; an external data cable is plugged into interface 21, and interface 21 provides external power.

[0054] In one specific embodiment, interface 21 includes a USB Type-A female connector and a USB Type-C female connector, both interfaces 21 being disposed on the same adapter board 20. These two types of interfaces 21 are the most common and widely used charging female connectors, which can be plugged into the male connectors of most external data cables to provide external power, meeting most usage scenarios and improving the versatility of the advertising machine 1, enabling it to adapt to most usage scenarios.

[0055] Please see Figures 6 to 7 , Figure 6 A schematic diagram of the contacts and pads of the advertising machine provided in this application; Figure 7 This is a schematic diagram of the sink of the advertising machine provided in this application.

[0056] In some embodiments, the advertising machine 1 further includes a bracket 30; a slot 11 is provided on the side of the display structure 10; the bracket 30 is at least partially disposed in the slot 11; the adapter plate 20 is connected to the bracket 30 and disposed in the slot 11; a contact 111 is provided on the inner wall of the slot 11, and the contact 111 abuts against the solder pad 22 of the adapter plate 20.

[0057] For example, a slot 11 is provided on at least one surface of the display structure 10.

[0058] The slot 11 can be a single-sided slot that penetrates one surface of the display structure 10, or it can be a junction slot or transition slot located at the junction of multiple surfaces of the display structure 10.

[0059] For example, the bracket 30 is plate-shaped and can cover the slot 11, which can provide better dust protection. The material of the bracket 30 is not limited here and can be flexibly adjusted and selected according to the actual situation.

[0060] For example, the bracket 30 has a plate-shaped hollow structure to facilitate heat dissipation of the advertising machine 1.

[0061] The support 30 can also be other structures.

[0062] When the slot 11 is a single-sided slot, the bracket 30 is correspondingly set as a flat cover plate; when the slot 11 is a junction slot at the junction of multiple surfaces, the bracket 30 is correspondingly set as a multi-faceted three-dimensional cover plate (L-shaped, T-shaped, or angular cover plate) that can cover multiple surfaces.

[0063] The pad 22 is disposed on the adapter plate 20 and can supply power to the adapter plate 20. The adapter plate 20 is disposed on the bracket 30 facing the slot 11. When the bracket 30 covers the slot 11, the adapter plate 20 is also located in the slot 11. The position of the pad 22 of the adapter plate 20 corresponds to the position of the contact 111 on the inner wall of the slot 11. When the adapter plate 20 is located in the slot 11, the pad 22 abuts against the contact 111 to supply power to the adapter plate 20.

[0064] The bracket 30 reduces the difficulty of replacing the adapter plate 20. The adapter plate 20 can be supported by the bracket 30, making it easier to install or remove the adapter plate 20 from the slot 11.

[0065] For example, the contact 111 is disposed on the side wall of the inner wall of the slot 11, corresponding to the position of the pad 22 of the adapter plate 20.

[0066] For example, the contact 111 is disposed on the bottom wall of the inner wall of the slot 11, corresponding to the position of the pad 22 of the adapter plate 20.

[0067] Preferably, the support 30 is made of ABS (acrylonitrile-butadiene-styrene copolymer), which has higher strength and is easier to manufacture and process.

[0068] Preferably, the display structure 10 is provided with a recessed groove 12, and a slot 11 is provided on at least one side surface of the display structure 10. The recessed groove 12 surrounds the slot 11 and is provided on the periphery of the slot 11. The shape of the bracket 30 corresponds to the slot 11. The depth of the recessed groove 12 is the same as the thickness of the bracket 30. The size and shape of the recessed groove 12 also correspond to the bracket 30. This allows the bracket 30 to be embedded in the display structure 10 while covering the slot 11, making the bracket 30 flush with the surface of the display structure 10. This improves the flatness and aesthetics of the surface of the advertising machine 1 and makes the bracket 30 less likely to fall off due to external friction and collision.

[0069] In some embodiments, the adapter plate 20 and the bracket 30 are detachably connected.

[0070] The adapter plate 20 is connected to the bracket 30 by means of snap-fit, magnetic attraction, or press-to-pop.

[0071] In some embodiments, the bracket 30 and the adapter plate 20 are connected by a snap-fit ​​connection. Specifically, the bracket 30 has a positioning groove on its surface facing the slot 11, and the adapter plate 20 has a protrusion structure corresponding to the positioning groove. The positioning groove and the protrusion structure form a snap-fit ​​connection. The positioning groove and the protrusion structure engage to connect the bracket 30 and the adapter plate 20. When disassembling the adapter plate 20, the protrusion structure is moved out of the positioning groove, thus separating the bracket 30 and the adapter plate 20. The snap-fit ​​connection structure is simple and easy to manufacture.

[0072] In some embodiments, a magnetic attractor is provided on the side surface of the bracket 30 facing the slot 11, and a magnetic element is provided on the adapter plate 20 at the position corresponding to the magnetic attractor. The bracket 30 and the adapter plate 20 can be connected to each other by attracting the magnetic element through the magnetic attractor. When disassembling the adapter plate 20, the bracket 30 and the adapter plate 20 can be separated by separating the magnetic element and the magnetic attractor.

[0073] In some embodiments, the bracket 30 has a slot on its surface facing the slot 11. The slot contains a spring-loaded mechanical structure and a ratchet mechanism, which is a typical snap-in and snap-out structure. When fixing the adapter plate 20, insert the adapter plate 20 into the slot and press it down to fix it to the bracket 30. When removing the adapter plate 20, press the adapter plate 20 again to separate the bracket 30 from the adapter plate 20.

[0074] The adapter plate 20 and the bracket 30 are detachably connected, so that when the adapter plate 20 is replaced, the bracket 30 does not need to be replaced, which reduces the number of parts that need to be replaced when replacing the adapter plate 20 and reduces the difficulty of maintenance.

[0075] In some embodiments, the adapter plate 20 and the bracket 30 are connected by threads.

[0076] The adapter plate 20 is connected to the bracket 30 by means of external screws, threaded holes, etc.

[0077] In some embodiments, the surface of the bracket 30 is provided with a protruding stud facing the slot 11, and the adapter plate 20 is provided with a threaded hole corresponding to the stud position. The bracket 30 stud is screwed into the threaded hole of the adapter plate 20 to achieve a fixed connection between the two. When disassembling the adapter plate 20, the stud is unscrewed from the threaded hole to achieve disassembly and separation. No external parts are required, and a simpler structure is used to achieve a detachable connection between the bracket 30 and the adapter plate 20.

[0078] In some embodiments, threaded holes are provided at corresponding positions on the bracket 30 and the adapter plate 20. External screws are simultaneously screwed into the threaded holes of both, thereby tightening and fixing them together. When disassembling the adapter plate 20, the screws are unscrewed from the threaded holes of both, thus separating them. The bracket 30 and the adapter plate 20 have a simple structure, requiring only threaded holes, and are easy to manufacture.

[0079] In some embodiments, the bracket 30 and the display structure 10 are detachably connected.

[0080] This allows the bracket 30 to be replaced separately when it becomes damaged or aged, reducing the maintenance cost of the advertising machine 1.

[0081] In some embodiments, the bracket 30 and the display structure 10 are connected by at least one of the following methods: push-pull groove, snap-fit, thread, magnetic attraction, and rotary lock.

[0082] It can be understood that the connection methods between the bracket 30 and the display structure 10 include, but are not limited to, push-pull grooves, buckles, threads, magnetic attraction, and rotating locks. In some cases, multiple fixing methods can be combined to achieve a more ideal connection effect between the bracket 30 and the display structure 10.

[0083] For example, the bracket 30 is connected to the display structure 10 via a push-pull slide groove. After the bracket 30 reaches the preset position of the display structure 10, the bracket 30 is fixed to the preset position of the display structure 10 by a threaded connection.

[0084] Preferably, PM3x6 screws can be used to thread the bracket 30 and the display structure 10. PM3x6 screws are more precise and can achieve a lighter weight. While achieving the basic fixing function, they can improve the aesthetics and also make the bracket 30 relatively smaller.

[0085] In some embodiments, the adapter plate 20 is located within the space enclosed by the display structure 10 and the bracket 30, and the interface 21 is exposed on the bracket 30; wherein, the slot 11 penetrates one side surface of the display structure 10; the bracket 30 is inserted into the slot 11 and covers the opening of the slot 11; or, the slot 11 is provided at the connection between two adjacent surfaces of the display structure 10 and penetrates both adjacent surfaces of the display structure 10; the bracket 30 covers the opening of the slot 11 and covers the outer edge of the slot 11; the portion of the bracket 30 covering the outer edge of the slot 11 is threadedly connected to the display structure 10.

[0086] It can be understood that the bracket 30 and the interface 21 are provided with through holes at the corresponding positions, so that the interface 21 is exposed to the bracket 30 and can be powered to the outside. The adapter plate 20 is set in the space enclosed by the display structure 10 and the bracket 30.

[0087] In one specific embodiment, the slot 11 is disposed on one side surface of the display structure 10, and the adapter plate 20 is fixed to the surface of the bracket 30 facing the slot 11. The bracket 30 carries the adapter plate 20, allowing the adapter plate 20 to enter the slot 11, and the bracket 30 covers the opening of the slot 11. The slot 11 is disposed on one side surface of the display structure 10, which allows for more flexible placement and simplifies the structure of the slot 11 and the bracket 30, reducing the processing and manufacturing difficulty of each component.

[0088] In another specific embodiment, the slot 11 is provided at the connection between the side and the back of the display structure 10, and the slot 11 penetrates through the side and the back of the display structure 10.

[0089] The recessed groove 12 is disposed on the side and back of the display structure 10, surrounding the slot 11, which penetrates the bottom wall of the recessed groove 12; the back of the display structure 10 is the opposite side of its display side.

[0090] The adapter plate 20 is disposed on the surface of the bracket 30 facing the slot 11.

[0091] The bracket 30 is an L-shaped three-dimensional structure that simultaneously covers the side and back slots 11 of the display structure 10. The bracket 30 has a through hole at the corresponding interface 21. The interface 21 is exposed to the outside through the through hole of the bracket 30 and can be powered externally.

[0092] The bracket 30 supports the adapter plate 20, covers the slot of the slot 11 and places the adapter plate 20 in the slot 11. The recess 12 surrounds the periphery of the slot 11 and corresponds in size to the bracket 30, so that the bracket 30 can be embedded in the recess 12. The part of the bracket 30 outside the slot 11 is threadedly connected to the display structure 10.

[0093] The slot 11 extends through both the side and back of the display structure 10, making the bracket 30 less prone to disassembly due to aging or deformation, thus facilitating its installation and removal. The recessed groove 12 allows the bracket 30 to be embedded in the surface of the display structure 10, with the surface of the bracket 30 flush with the surface of the display structure 10, enhancing the aesthetics and durability of the display structure 10. The portion of the bracket 30 outside the slot 11 is threadedly connected to the display structure 10, achieving a fixing function while also minimizing interference from screws and other threaded fasteners used in the threaded connection on the adapter plate 20.

[0094] Please see Figure 8 , Figure 8 This is a schematic diagram of the motherboard of the advertising machine provided in this application.

[0095] In some embodiments, the advertising machine 1 further includes a motherboard 40; the motherboard 40 is disposed on the back of the display structure 10 and is detachably connected to the display structure 10; the motherboard 40 supplies power to the adapter board 20; the display structure 10 and the adapter board 20 operate independently.

[0096] The motherboard 40, used to drive and control the advertising machine 1, is detachably installed inside the back of the display structure 10. In addition to driving the display structure 10 to play advertising content normally, it also supplies power to the adapter board 20, enabling the interface 21 to supply power to the outside normally. When the adapter board 20 fails, it does not affect the function of the motherboard 40 driving the display structure 10. That is, the display structure 10 and the adapter board 20 work independently and do not affect each other.

[0097] Please see Figure 9 , Figure 9 This is a schematic diagram of the handling device provided in this application.

[0098] This application provides a transport device 2, including a trolley 3 and the aforementioned advertising machine 1.

[0099] The handling device 2 can be applied to the field of public transportation, such as airports, train stations, high-speed rail stations and other scenarios where baggage handling is required. The handling device 2 also includes the advertising machine 1. In crowded scenarios, the advertising machine 1 has a better advertising effect.

[0100] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0101] The above are merely embodiments of this application and do not limit the scope of patent protection of this application. Any equivalent structural or procedural changes made using the content of this application’s specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the scope of patent protection of this application.

Claims

1. An advertising machine, characterized in that, include: Display structure, used to display images; Adapter board, including interfaces; The adapter board and the display structure are detachable, and the interface is an output interface used for external power supply.

2. The advertising machine according to claim 1, characterized in that, The interface includes at least one of a universal serial bus interface and a DC power socket.

3. The advertising machine according to claim 1, characterized in that, The advertising machine also includes a bracket; the display structure has a slot on its side. The bracket is at least partially disposed in the slot; the adapter plate is connected to the bracket and disposed in the slot; the inner wall of the slot is provided with a contact point, which abuts against the pads of the adapter plate.

4. The advertising machine according to claim 3, characterized in that, The adapter plate and the bracket are detachably connected.

5. The advertising machine according to claim 4, characterized in that, The adapter plate is connected to the bracket by threads.

6. The advertising machine according to claim 3, characterized in that, The bracket and the display structure are detachably connected.

7. The advertising machine according to claim 6, characterized in that, The bracket and the display structure are connected by at least one of the following methods: push-pull sliding groove, snap fastener, thread, magnetic attraction, and rotary lock.

8. The advertising machine according to claim 6, characterized in that, The adapter board is located within the space enclosed by the display structure and the bracket, and the interface is exposed on the bracket; The slot extends through one side surface of the display structure; the bracket is inserted into the slot and covers the opening of the slot. or, The slot is provided at the connection between two adjacent surfaces of the display structure and extends through the two adjacent surfaces of the display structure; The bracket covers the opening of the slot and the outer edge of the slot; the portion of the bracket covering the outer edge of the slot is threadedly connected to the display structure.

9. The advertising machine according to claim 3, characterized in that, The advertising machine also includes a motherboard; the motherboard is located on the back of the display structure and is detachably connected to the display structure; The motherboard supplies power to the adapter board; the display structure and the adapter board operate independently of each other.

10. A conveying device, characterized in that, Includes a trolley and an advertising machine according to any one of claims 1 to 9.

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