Portable Digital Signage

Abstract

The utility model relates to the technical field of signage equipment, and discloses a portable digital signage, including a front frame component, a rear frame component, and a rear backpack component, wherein the front frame component is arranged in front of the rear frame component, and the rear backpack component is arranged behind the rear frame component, wherein the front frame component includes tempered glass, a profile frame, a decorative plate, and a rubber pad, wherein the tempered glass and the decorative plate are embedded in the profile frame and fixed by structural adhesive, and the rubber pad is fixedly installed at the bottom of the profile frame; wherein the rear frame component includes a light bar, a photosensitive system, a display, a mobile pusher, a rear frame plate, and a speaker, and the rear frame plate is fixedly installed on the profile frame. The portable digital signage has a display screen that uses LCD backlight technology and a constant current source drive, which ensures that the advertising content is clearly visible in an environment with strong sunlight, improves the display effect, and reduces energy consumption, and the display screen is designed as a touch screen, which improves the user interaction experience and increases the attractiveness of the advertisement.

Description

Technical Field

[0001] The utility model relates to the technical field of signage equipment, in particular to a portable digital signage. Background Art

[0002] With the development of economy and the progress of society, energy conservation has become inevitable and social consensus. New technologies and new products are emerging around us. Digital signage is one of them, and it plays an increasingly important role in modern cities. Traditional digital signage usually relies on external power sources such as power grids or generators, which limits their deployment locations and flexibility. They need to be close to power outlets, which increases the complexity of installation and operation, and in areas where power is unavailable or unstable, the operation of digital signage will be affected. In order to adapt to the demand for energy conservation and meet the market demand for more efficient, environmentally friendly and user-friendly advertising solutions. Technological progress has driven more advanced display and interactive functions, environmental protection requirements have driven energy independence and energy-saving design, market competition has prompted product innovation and differentiation, user experience has driven stronger interactivity and viewing experience, and flexibility and scalability are to quickly adapt to market changes.

[0003] Digital signage in existing technologies usually has the following problems:

[0004] Energy consumption: Digital signage usually needs to run around the clock, which results in high energy consumption. Especially in strong sunlight, the screen brightness needs to be increased, further increasing energy consumption;

[0005] Environmental adaptability: Digital signage needs to cope with various adverse weather conditions, such as high temperature, low temperature, rain, ultraviolet rays, etc., which requires digital signage to have high environmental adaptability. However, existing digital signage is often not good enough in terms of waterproofing and sun protection, which affects the life of the equipment and the advertising display effect;

[0006] Difficult maintenance: Since digital signage is usually installed in public places, it is difficult to maintain. For example, replacing damaged parts or cleaning the screen usually requires shutting down the device, which affects the playback of advertisements and the audience's experience. For this reason, we propose portable digital signage to solve the above problems. Utility Model Content

[0007] The purpose of the utility model is to provide a portable digital signage to solve the problems raised in the above background technology.

[0008] To achieve the above object, the utility model provides the following technical solution: a portable digital signage comprises a front frame assembly, a rear frame assembly and a rear backpack assembly, wherein the front frame assembly is arranged in front of the rear frame assembly, and the rear backpack assembly is arranged behind the rear frame assembly.

[0009] The front frame assembly includes a tempered glass, a profile frame, a decorative plate, and a first rubber pad. The tempered glass and the decorative plate are embedded in the profile frame and fixed by structural adhesive. The first rubber pad is fixedly installed at the bottom of the profile frame.

[0010] The rear frame assembly includes a light bar, a photosensitive system, a display, a movable handle, a rear frame plate, and a speaker. The rear frame plate is fixedly mounted on the profile frame, a movable handle is fixedly mounted on the upper back of the rear frame plate, the display is fixedly mounted on the front of the rear frame plate, and the display is embedded in the profile frame, and a light bar, a photosensitive system, and a speaker are fixedly mounted below the front of the rear frame plate, and the light bar and the photosensitive system are passed through the front of the profile frame;

[0011] The backpack assembly includes a power display, a cooling fan, a hinge, a power charging interface, a folding support pneumatic rod, a rear backpack door, a mobile tire, a mainboard mounting plate, a battery protection cover, a battery power control switch, a battery frame, and a backpack sheet metal box. A battery frame is provided at the bottom of the backpack sheet metal box, and a battery is clamped inside the battery frame. A battery protection cover is fixedly installed on the top of the battery. A hinge that cooperates with the rear frame plate is fixedly installed on one side above the backpack sheet metal box. Mobile tires are movably installed at the bottom of the left and right sides of the backpack sheet metal box, and brakes are provided on the mobile tires. A mainboard mounting plate is fixedly installed inside the backpack sheet metal box, and a programmable control board is fixedly installed on the mainboard mounting plate. A cooling fan is provided on the top of the mainboard mounting plate, and a power board reinforcement rib is provided on the back. A power display and a power control switch are fixedly installed on the upper part of the back of the backpack sheet metal box, and a power charging interface is provided on the side. Folding support pneumatic rods are provided at the contact positions of the left and right sides of the backpack sheet metal box with the rear frame plate, and a rear backpack door is hinged on the back of the backpack sheet metal box.

[0012] As a further solution of the utility model: a plurality of front and rear frame connecting holes cooperating with each other are provided on the profile frame and the rear frame plate, a plurality of locking screen strips cooperating with the display are welded on the front side of the rear frame plate, and the display is mounted on the locking screen strips by screws.

[0013] As a further solution of the utility model: a light bar fixing bracket is welded at the lower part of the front side of the rear frame plate, and a light bar fixing hole is opened on the light bar fixing bracket, a light bar fixing plate matching the light bar is fixedly installed on the light bar fixing bracket by screws, and a speaker fixing hole is fixedly installed at the lower part of the front side of the rear frame plate.

[0014] As a further solution of the utility model: a push handle reinforcement rib is welded on the upper part of the front side of the rear frame plate, and a push handle connecting hole is opened on the push handle reinforcement rib, and the movable push handle is fixedly connected to the push handle reinforcement rib by screws, and the movable push handle is located in the middle of the left and right sides of the rear frame plate.

[0015] As a further solution of the utility model: a rib plate 1 is welded on the front of the rear frame plate, a rib plate 2 is welded on the inner side of the backpack sheet metal box at a position corresponding to the rib plate 1, and the hinge is fixed to the rib plate 1 position of the rear frame plate and the rib plate 2 position of the backpack sheet metal box by bolts.

[0016] As a further solution of the utility model: a pneumatic rod reinforcement plate is welded on the front side of the rear frame plate near the folding support pneumatic rod, and a pneumatic rod fixing hole is opened on the pneumatic rod reinforcement plate, one end of the folding support pneumatic rod is fixedly connected to the pneumatic rod reinforcement plate by screws, and the other end is fixedly installed on the backpack sheet metal box by screws.

[0017] As a further solution of the utility model: a battery fixing reinforcing rib that can support the battery frame is welded to the bottom of the battery frame, and a battery handle is fixedly installed on the top of the battery protection cover.

[0018] As a further solution of the utility model: fixing screw rods are provided at the bottom of the left and right sides of the backpack sheet metal box, the movable tire is movably mounted on the backpack sheet metal box through the fixing screw rods, the bottom of the brake is provided with brake reinforcement ribs, and a rubber pad 2 is fixedly installed at the lower part of the front of the backpack sheet metal box by screws.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] 1. The portable digital signage is powered by a battery, eliminating the reliance on an external power source, making the digital signage more flexible and portable, reducing restrictions on the use environment, and thus expanding its application range.

[0021] 2. The portable digital signage uses LCD backlight technology and constant current source drive to ensure that the advertising content is clearly visible in a strong sunlight environment, improve the display effect, and reduce energy consumption. At the same time, the display is a touch screen design to improve the user interaction experience and increase the attractiveness of the advertisement.

[0022] 3. The portable digital signage has a rear frame and a display screen that are integrally hinged to the rear backpack assembly, and the inclination of the display screen can be adjusted by folding the supporting gas pressure rod, which is more ergonomically designed and easy to carry and use.

[0023] 4. The portable digital signage is made of special rainproof and heat-resistant materials, and is waterproof and dustproof as a whole to ensure that the digital signage can work normally in harsh environments and extreme weather.

[0024] 5. The portable digital signage adopts a modular design as a whole, which facilitates the independent and quick replacement of each module, improves the sustainability and maintainability of the digital signage, and facilitates subsequent upgrades and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the structure of the utility model after overall assembly;

[0026] Figure 2 It is a schematic diagram of the overall side view of the structure of the utility model;

[0027] Figure 3 It is a schematic diagram of the overall structure of the utility model from a top view;

[0028] Figure 4 It is a schematic diagram of the structure of a partial cross-section in the utility model;

[0029] Figure 5 It is a schematic diagram of the overall cross-section structure of the utility model;

[0030] Figure 6 For the utility model Figure 5 Schematic diagram of the structure of the AA section view.

[0031] In the figure: 1. Tempered glass; 2. Profile frame; 3. Light bar; 4. Photosensitive system; 5. Decorative plate; 6. Rubber pad 1; 7. Display; 8. Mobile push handle; 9. Rear frame plate; 10. Backpack assembly; 11. Power display; 12. Cooling fan; 13. Hinge; 14. Power charging interface; 15. Folding support gas pressure rod; 16. Backpack door at the rear; 17. Mobile tire; 18. Fixing screw rod; 19. Front and rear frame connection holes; 20. Push handle reinforcement rib; 21. Push handle connection hole; 22. Lock screen strip; 23 , rib plate one; 24, rib plate two; 25, mainboard mounting plate; 26, battery handle; 27, light bar fixing plate; 28, speaker; 29, speaker fixing hole; 30, battery protection cover; 31, battery; 32, light bar fixing hole; 33, light bar fixing bracket; 34, battery fixing reinforcement rib; 35, brake; 36, brake reinforcement rib; 37, gas rod reinforcement plate; 38, gas rod fixing hole; 39, rubber pad two; 40, power control switch; 41, power board reinforcement rib; 42, battery frame; 43, backpack sheet metal box. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] See also Figure 1-6In the embodiment of the utility model, the portable digital signage includes a front frame assembly, a rear frame assembly and a rear backpack assembly 10. The front frame assembly is arranged in front of the rear frame assembly, and the rear backpack assembly 10 is arranged behind the rear frame assembly. The overall modular design is adopted to facilitate independent and rapid replacement of each module, thereby improving the sustainability and maintainability of the digital signage and facilitating subsequent upgrades and maintenance.

[0034] The front frame assembly includes a tempered glass 1, a profile frame 2, a decorative panel 5, and a rubber pad 6. The tempered glass 1 and the decorative panel 5 are embedded in the profile frame 2 and fixed by structural adhesive. The tempered glass 1 can protect the display 7 to prevent the display 7 from being damaged by impact. The tempered glass 1 and the decorative panel 5 are fixed by structural adhesive during installation to ensure that the tempered glass 1 and the decorative panel 5 are firmly installed and improve the waterproof and dustproof effect of the connection. The rubber pad 6 is fixedly installed at the bottom of the profile frame 2. The rubber pad 6 is glued to the bottom of the profile frame 2 to reduce the friction of the profile frame 2 when in use.

[0035] The rear frame assembly includes a light bar 3, a photosensitive system 4, a display 7, a movable handle 8, a rear frame plate 9, and a speaker 28. The rear frame plate 9 is fixedly mounted on the profile frame 2. The movable handle 8 is fixedly mounted on the upper back of the rear frame plate 9. The display 7 is fixedly mounted on the front of the rear frame plate 9, and the display 7 is embedded in the interior of the profile frame 2. The display 7 adopts LCD backlight technology and constant current source drive to ensure that the advertising content is clearly visible in an environment with strong sunlight, improve the display effect, and reduce energy consumption. At the same time, the display 7 is a touch screen design to improve the user interaction experience and increase the attractiveness of the advertisement. The light bar 3, the photosensitive system 4 and the speaker 28 are fixedly mounted below the front of the rear frame plate 9, and the light bar 3 and the photosensitive system 4 are penetrated to the front of the profile frame 2;

[0036] The backpack assembly 10 includes a power display 11, a cooling fan 12, a hinge 13, a power charging interface 14, a folding support pneumatic rod 15, a small rear backpack door 16, a mobile tire 17, a mainboard mounting plate 25, a battery protection cover 30, a battery 31 power control switch 40, a battery frame 42, and a backpack sheet metal box 43. A battery frame 42 is provided at the bottom of the backpack sheet metal box 43, and a battery 31 is connected to the inside of the battery frame 42. The battery 31 is used for power supply, eliminating the dependence on an external power source, making the digital sign more flexible and easy to move, reducing restrictions on the use environment, and thus expanding its application range. A battery protection cover 30 is fixedly installed on the top of the battery 31, and a hinge 13 cooperating with a rear frame plate 9 is fixedly installed on one side above the backpack sheet metal box 43. The rear frame plate 9 is hinged to the backpack assembly 10 as a whole, and the inclination of the display screen can be adjusted by the folding support pneumatic rod 15, which is more in line with human needs. The ergonomic design is convenient for carrying and use. The bottom of the left and right sides of the backpack sheet metal box 43 are movably installed with mobile tires 17, and the mobile tires 17 are provided with brakes 35. The interior of the backpack sheet metal box 43 is fixedly installed with a mainboard mounting plate 25, and the mainboard mounting plate 25 is fixedly installed with a programmable control board. The top of the mainboard mounting plate 25 is provided with a cooling fan 12, and the back is provided with a power board reinforcement rib 41. The upper part of the back of the backpack sheet metal box 43 is fixedly installed with a power display 11 and a power control switch 40, and a power charging interface 14 is provided on the side. The left and right sides of the backpack sheet metal box 43 are provided with folding support pneumatic rods 15 at the contact positions with the rear frame plate 9. The back of the backpack sheet metal box 43 is hinged with a rear backpack door 16. The digital sign is made of special rainproof and heat-resistant material as a whole, and is waterproof and dustproof as a whole to ensure the normal operation of the digital sign in harsh environments and extreme weather.

[0037] As a further implementation scheme of the above invention: a plurality of front and rear frame connecting holes 19 that cooperate with each other are opened on the profile frame 2 and the rear frame plate 9, and a plurality of locking screen strips 22 that cooperate with the display 7 are welded on the front of the rear frame plate 9. The connection parts of the digital signage shell and other parts are filled with sealant and other waterproof and dustproof designs to ensure the normal operation of the digital signage in harsh environments and extreme weather. The display 7 is installed on the locking screen strips 22 by screws, and the display 7 is fixed to the plurality of locking screen strips 22 by screws to ensure that the display 7 is firmly installed and easy to disassemble and assemble. The display 7 is designed as a touch screen and adopts LCD backlight technology and constant current source drive to improve display effect and reduce energy consumption.

[0038] As a further implementation scheme of the above invention: a light bar fixing bracket 33 is welded to the lower part of the front side of the rear frame plate 9, and a light bar fixing hole 32 is opened on the light bar fixing bracket 33, and a light bar fixing plate 27 cooperating with the light bar 3 is fixedly installed on the light bar fixing bracket 33 by screws, and the position of the light bar 3 can be limited by the light bar fixing bracket 33 and the light bar fixing plate 27 to ensure the stability of the light bar 3 when working, and a speaker fixing hole 29 is fixedly installed on the lower part of the front side of the rear frame plate 9, and the position of the speaker 28 can be limited by the speaker fixing hole 29 to ensure the stability of the speaker 28.

[0039] As a further implementation scheme of the above invention: a push handle reinforcement rib 20 is welded on the upper front side of the rear frame plate 9, and a push handle connecting hole 21 is opened on the push handle reinforcement rib 20, and the mobile push handle 8 is fixedly connected to the push handle reinforcement rib 20 by screws. The mobile push handle 8 is located in the middle of the left and right sides of the rear frame plate 9. The digital signage can be pushed to move by the mobile push handle 8, which is convenient for carrying the digital signage.

[0040] As a further implementation scheme of the above invention: a rib plate 23 is welded on the front side of the rear frame plate 9, a rib plate 24 is welded on the inner side of the backpack sheet metal box 43 at a position corresponding to the rib plate 23, a hinge 13 is fixedly installed on the rib plate 23 of the rear frame plate 9 and the rib plate 24 of the backpack sheet metal box 43 by bolts, and the backpack sheet metal box 43 is hinged to the rear frame plate 9 by the hinge 13 to ensure a stable connection between the two, and the inclination angle of the rear frame plate 9 and the display 7 can be adjusted at the same time.

[0041] As a further implementation scheme of the above invention: a pneumatic rod reinforcement plate 37 is welded on the front side of the rear frame plate 9 near the folding support pneumatic rod 15, and a pneumatic rod fixing hole 38 is opened on the pneumatic rod reinforcement plate 37. One end of the folding support pneumatic rod 15 is fixedly connected to the pneumatic rod reinforcement plate 37 by screws, and the other end is fixedly installed on the backpack sheet metal box 43 by screws. The inclination angle of the rear frame plate 9 and the display 7 can be adjusted through the folding support pneumatic rod 15 on the side of the backpack sheet metal box 43, which is convenient for viewing the digital signage.

[0042] As a further implementation scheme of the above invention: a battery fixing reinforcement rib 34 is welded to the bottom of the battery frame 42 for supporting it. The battery fixing reinforcement rib 34 can provide auxiliary support to the battery frame 42 to ensure the firmness of the battery frame 42 and the brake 35 when in use. A battery handle 26 is fixedly installed on the top of the battery protection cover 30. By providing the battery handle 26, it is convenient to take out the battery 31, and the battery 31 is convenient to inspect and replace.

[0043] As a further implementation scheme of the above invention: fixing screw rods 18 are provided at the bottom of the left and right sides of the backpack sheet metal box 43, and the mobile tire 17 is movably installed on the backpack sheet metal box 43 through the fixing screw rods 18. The fixing screw rods 18 can limit the mobile tire 17 to ensure that the mobile tire 17 is firmly connected to the backpack sheet metal box 43, and at the same time, the mobile tire 17 can rotate stably. A brake reinforcement rib 36 is provided at the bottom of the brake 35, and a rubber pad 2 39 is fixedly installed at the lower front of the backpack sheet metal box 43 by screws. By providing the rubber pad 2 39, collision between the rear frame plate 9 and the backpack sheet metal box 43 is avoided, thereby preventing the display 7 inside the rear frame plate 9 from being damaged by hand collision.

[0044] During specific implementation: the assembly method of the front frame component is: the tempered glass 1 and the decorative panel 5 are embedded in the profile frame 2 and fixed by structural adhesive, and the adhesive pad 6 is glued to the bottom of the profile frame 2 to reduce the friction of the profile frame 2 when in use; the assembly method of the rear frame component is: the movable push handle 8 is fixedly connected to the push handle connection hole 21 by screws, the display 7 is installed on the locking screen strip 22 on the front of the rear frame plate 9 by screws, the photosensitive system 4 is fixed on the light bar fixing plate 27, and the photosensitive system 4 is installed below the light bar 3 on the front of the rear frame plate 9, and the speaker 28 is fixed to the speaker fixing hole 29 by screws; the assembly method of the backpack component 10 is: one side of the hinge 13 is installed on the rib plate 1 23 position of the rear frame plate 9 by screws, and the other side is installed on the rib plate 2 24 position of the backpack sheet metal box 43 to realize the hinge connection between the rear frame plate 9 and the backpack sheet metal box 43, one end of the folding support gas pressure rod 15 is installed on the gas pressure rod reinforcement plate 37 position of the rear frame plate 9 by screws, and the folding support The other end of the pneumatic rod 15 is installed on the backpack sheet metal box 43 by screws. The inclination angle of the rear frame plate 9 is adjusted by folding and supporting the pneumatic rod 15. The small door 16 of the rear backpack is opened, and the battery 31, the mainboard mounting plate 25, the programmable control board, the power display 11, the cooling fan 12, and the power charging interface 14 are installed, and the circuit is laid out. Mobile tires 17 are installed at the bottom ends of both sides of the backpack sheet metal box 43, and brakes 35 are set; the digital sign is powered by the battery 31 to eliminate the dependence on the external power supply, making the digital sign more flexible and easy to move, and reducing the restrictions on the environment. The display 7 is designed as a touch screen and adopts LCD backlight technology and constant current source drive to improve the display effect and reduce energy consumption. The connection parts of the digital sign housing and other parts are filled with sealant and other waterproof and dustproof designs to ensure the normal operation of the digital sign in harsh environments and extreme weather. The overall modular design is adopted to facilitate independent and rapid replacement of each module.

[0045] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A portable digital signage, comprising a front frame assembly, a rear frame assembly and a rear backpack assembly (10), wherein the front frame assembly is arranged in front of the rear frame assembly, and the rear backpack assembly (10) is arranged behind the rear frame assembly, characterized in that: The front frame assembly comprises a tempered glass (1), a profile frame (2), a decorative plate (5), and a first rubber pad (6); the tempered glass (1) and the decorative plate (5) are embedded in the profile frame (2) and fixed by structural adhesive; the first rubber pad (6) is fixedly mounted on the bottom of the profile frame (2); The rear frame assembly comprises a light bar (3), a photosensitive system (4), a display (7), a movable push handle (8), a rear frame plate (9), and a speaker (28); the rear frame plate (9) is fixedly mounted on the profile frame (2); the movable push handle (8) is fixedly mounted on the upper part of the back of the rear frame plate (9); the display (7) is fixedly mounted on the front of the rear frame plate (9), and the display (7) is embedded in the interior of the profile frame (2); the light bar (3), the photosensitive system (4), and the speaker (28) are fixedly mounted on the lower part of the front of the rear frame plate (9); and the light bar (3) and the photosensitive system (4) are penetrated to the front of the profile frame (2); The backpack assembly (10) comprises a power display (11), a cooling fan (12), a hinge (13), a power charging interface (14), a folding support pneumatic rod (15), a small door (16) at the rear backpack, a moving tire (17), a mainboard mounting plate (25), a battery protection cover (30), a battery (31) power control switch (40), a battery frame (42), and a backpack sheet metal box (43). The bottom of the backpack sheet metal box (43) is provided with a battery frame (42), and the battery (31) is clamped inside the battery frame (42). The top of the battery (31) is fixedly installed with a battery protection cover (30). A hinge (13) that cooperates with the rear frame plate (9) is fixedly installed on one side above the backpack sheet metal box (43). The left and right sides of the backpack sheet metal box (43) are The bottom of the backpack sheet metal box (43) is movably mounted with a mobile tire (17), and the mobile tire (17) is provided with a brake (35); a mainboard mounting plate (25) is fixedly mounted inside the backpack sheet metal box (43), and a programmable control board is fixedly mounted on the mainboard mounting plate (25); a cooling fan (12) is arranged on the top of the mainboard mounting plate (25), and a power board reinforcement rib (41) is arranged on the back; a power display (11) and a power control switch (40) are fixedly mounted on the upper part of the back of the backpack sheet metal box (43), and a power charging interface (14) is arranged on the side; folding support pneumatic rods (15) are arranged at the contact positions of the left and right sides of the backpack sheet metal box (43) and the rear frame plate (9); and a rear backpack small door (16) is hinged on the back of the backpack sheet metal box (43).

2. The portable digital signage according to claim 1, characterized in that: The profile frame (2) and the rear frame plate (9) are provided with a plurality of front and rear frame connection holes (19) that cooperate with each other, and a plurality of locking screen strips (22) that cooperate with the display (7) are welded on the front side of the rear frame plate (9), and the display (7) is mounted on the locking screen strips (22) by means of screws.

3. The portable digital signage according to claim 1, characterized in that: A light bar fixing bracket (33) is welded below the front surface of the rear frame plate (9), and a light bar fixing hole (32) is provided on the light bar fixing bracket (33). A light bar fixing plate (27) matching the light bar (3) is fixedly mounted on the light bar fixing bracket (33) by screws, and a speaker fixing hole (29) is fixedly mounted below the front surface of the rear frame plate (9).

4. The portable digital signage according to claim 1, characterized in that: A push handle reinforcement rib (20) is welded above the front surface of the rear frame plate (9), and a push handle connection hole (21) is opened on the push handle reinforcement rib (20). The movable push handle (8) is fixedly connected to the push handle reinforcement rib (20) by screws. The movable push handle (8) is located in the middle of the left and right sides of the rear frame plate (9).

5. The portable digital signage according to claim 1, characterized in that: A rib plate 1 (23) is welded on the front of the rear frame plate (9), a rib plate 2 (24) is welded on the inner side of the rear backpack sheet metal box (43) at a position corresponding to the rib plate 1 (23), and the hinge (13) is fixedly installed at the rib plate 1 (23) position of the rear frame plate (9) and the rib plate 2 (24) position of the rear backpack sheet metal box (43) by bolts.

6. The portable digital signage according to claim 1, characterized in that: A pneumatic rod reinforcement plate (37) is welded on the front of the rear frame plate (9) near the folding support pneumatic rod (15), and a pneumatic rod fixing hole (38) is opened on the pneumatic rod reinforcement plate (37); one end of the folding support pneumatic rod (15) is fixedly connected to the pneumatic rod reinforcement plate (37) by screws, and the other end is fixedly installed on the backpack sheet metal box (43) by screws.

7. The portable digital signage according to claim 1, characterized in that: A battery fixing reinforcing rib (34) capable of supporting the battery frame (42) is welded to the bottom thereof, and a battery handle (26) is fixedly mounted on the top of the battery protection cover (30).

8. The portable digital signage according to claim 1, characterized in that: The bottom of the left and right sides of the backpack sheet metal box (43) are both provided with fixing screw rods (18), the movable tire (17) is movably mounted on the backpack sheet metal box (43) through the fixing screw rods (18), the bottom of the brake (35) is provided with a brake reinforcement rib (36), and a rubber pad 2 (39) is fixedly mounted at the lower part of the front of the backpack sheet metal box (43) by screws.

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