Advertising lamp box

Abstract

The invention relates to the technical field of advertising equipment, and discloses an advertising lamp box which comprises a shell, transparent plates are arranged on the front side and the rear side of the shell respectively, and cloth winding pieces are arranged at the positions, located at multiple inner corners, in the shell respectively; the driving assembly comprises two power rollers which are arranged in a spaced mode in the left-right direction, the two power rollers can rotate along the axis in the up-down direction, a cloth penetrating channel is formed in the outer sides of the power rollers, and the cloth penetrating channel extends in the radial direction of the power rollers; the light source assembly comprises two lamp panels which are arranged in the shell at intervals in the front-back direction, and the two lamp panels emit light towards the two transparent plates correspondingly. Propaganda cloth is directly wound on the power rollers, the propaganda content is replaced and displayed in the mode that one power roller is wound, and the other power roller is unwound; the space occupied by the propaganda cloth in the shell is reduced, internal heat can be discharged easily, and the overall size can be better controlled.

Description

Technical Field

[0001] This invention relates to the field of advertising equipment technology, and in particular to an advertising light box. Background Technology

[0002] Advertising light boxes are used in parking lots along roads and streets. They consist of a light box frame and an advertising display. The frame is typically made of aluminum alloy or stainless steel, while the surface is made of acrylic glass. The frame houses fluorescent or neon tubes, and the advertising display is usually photographic film or banner. Some advertising light boxes only have the advertising display on the surface; since the display is fixed, the amount of content that can be displayed is limited. To display more content, some light boxes have multiple rollers inside, which wind the banner back and forth. During use, the banner can be moved between the rollers to change the content displayed on the surface. However, this type of advertising light box, with its multiple rollers and the need for space for the banner to move, results in a larger size, poorer heat dissipation, and reduced overall practicality. Therefore, there is an urgent need for a more practical advertising light box. Summary of the Invention

[0003] The purpose of this invention is to provide an advertising lightbox to solve one or more technical problems existing in the prior art, and at least provide a beneficial option or create conditions.

[0004] The solution to the technical problem of this invention is: An advertising lightbox includes: a shell with transparent panels on its front and rear sides, and fabric wrapping components located at multiple inner corners inside the shell; a drive assembly including two power rollers spaced apart in a left-right direction, each power roller being rotatable along an axis in a up-down direction, and a fabric-passing channel extending radially along the outer side of each power roller; and a light source assembly including two light panels spaced apart in a front-back direction within the shell, each light panel emitting light toward the two transparent panels.

[0005] This technical solution has at least the following beneficial effects: Before use, the promotional cloth to be displayed is wrapped around multiple wrapping parts inside the outer shell. When the cloth passes through the left and right power rollers, for example, the cloth is passed through the cloth-passing channel of the left power roller and rotated, causing the cloth to be rolled up outside the power roller. Then, both ends of the cloth are guided to the right power roller and positioned in the cloth-passing channel of this power roller. During use, the content displayed on the cloth can be seen from the transparent panels on the front and rear sides of the outer shell. Two light panels emit light through the cloth to the two transparent panels, thereby improving the promotional display effect. When the content to be displayed needs to be changed, the right power roller is rolled up and the left power roller is unrolled, thus changing the content displayed on the transparent panel. In this way, the cloth is directly rolled up on the power roller, and the content can be changed by rolling up one power roller and unrolling the other. This reduces the space occupied by the cloth inside the outer shell, facilitates the dissipation of internal heat, and better controls the overall volume.

[0006] As a further improvement to the above technical solution, a motor is installed inside the outer casing. The motor is driven to rotate the two power rollers. The same motor provides rotational driving force to the two power rollers, causing one power roller to roll up the advertising cloth while the other unrolls it.

[0007] As a further improvement to the above technical solution, the drive assembly further includes a drive unit, which includes a driven gear, a drive gear, a transmission wheel, and a synchronous belt. The ends of the two drive rollers are coaxially connected to driven gears. Two drive gears are spaced apart in the left-right direction within the housing, and each drive gear meshes with one of the driven gears. A motor is housed within the housing, driving one of the drive gears. The motor is connected within the housing, and transmission wheels are coaxially connected to each of the two drive gears. The synchronous belt is connected to each of the two transmission wheels. The motor drives one drive gear to rotate, and the drive gear transmits power through its meshing driven gear, driving one drive roller to rotate. Simultaneously, the drive gear transmits power through the transmission wheel and the synchronous belt, driving the other drive gear to rotate. Similarly, power is transmitted through the meshing of the drive gear and the driven gear, driving the other drive roller to rotate.

[0008] As a further improvement to the above technical solution, drive units are respectively provided at the upper and lower ends of the two power rollers. When the motor is working, it transmits power to either drive unit, thereby enabling the two power rollers to rotate simultaneously, while the other drive unit is also driven to perform transmission. In this way, the two drive units stabilize the upper and lower ends of the power rollers respectively, further improving the stability of changing the content of the advertising cloth.

[0009] As a further improvement to the above technical solution, a heat dissipation channel extending vertically is provided inside the housing, with the two lamp panels respectively located close to the front and rear sides of the heat dissipation channel. External airflow can enter the heat dissipation channel, pass through it vertically, and flow out. During use, the heat generated by the two lamp panels can be transferred to the front and rear sides of the heat dissipation channel, and the heat within the channel is carried away by the airflow passing through it. This improves the heat dissipation efficiency of the lamp panels and helps extend their service life.

[0010] As a further improvement to the above technical solution, a ventilation component is provided within the heat dissipation channel, and the ventilation component includes a deflector that can move vertically. When the deflector moves vertically within the heat dissipation channel, it can disturb the air inside the channel, accelerate heat exchange between the inside and outside of the channel, and thus further improve the heat dissipation efficiency of the lamp panel.

[0011] As a further improvement to the above technical solution, the ventilation assembly includes a belt conveyor disposed within the heat dissipation channel. The belt conveyor has a conveying surface that can rotate in a vertical direction, and multiple air deflectors are respectively disposed on the conveying surface. When the belt conveyor is in operation, it can drive the multiple air deflectors to rotate in a vertical direction within the heat dissipation channel. At this time, the belt conveyor drives the multiple air deflectors downward on one side of the heat dissipation channel, promoting the formation of a downward airflow at this position, while the belt conveyor drives the multiple air deflectors upward on the other side of the heat dissipation channel, promoting the formation of a downward airflow at this position, thereby improving the heat dissipation effect of the heat dissipation channel.

[0012] As a further improvement to the above technical solution, the ventilation assembly includes a first bevel gear and a second bevel gear. The first bevel gear is respectively mounted on one of the two power gears, and the second bevel gear is respectively mounted inside the housing at positions corresponding to the two first bevel gears. The two first bevel gears mesh with the two second bevel gears, and a drive shaft is coaxially connected to each of the two second bevel gears. The two drive shafts extend into the heat dissipation channel and are connected to the belt conveyor. When the content displayed on the promotional cloth needs to be changed, the two drive wheels rotate, driving the first bevel gears on the two drive wheels to rotate. Since the first and second bevel gears mesh, power can be transmitted to the two drive shafts, thereby providing power to the belt conveyor and causing multiple deflectors on the conveyor surface to move up and down.

[0013] As a further improvement to the above technical solution, a cover is provided on the top side of the outer casing, which covers the heat dissipation channel, and an airflow gap is provided between the cover and the top side of the outer casing. The cover can shield the heat dissipation channel from the outside air, preventing rainwater and debris from directly entering the heat dissipation channel, thus better protecting the structure inside the heat dissipation channel, while the airflow gap allows for heat exchange between the outside air and the inside of the heat dissipation channel.

[0014] As a further improvement to the above technical solution, multiple wrapping components are rotatably connected within the outer casing along vertical axes, and the multiple wrapping components are roller-shaped. When the advertising cloth passes around and moves relative to the multiple wrapping components, the wrapping components can rotate within the outer casing, thus reducing friction between the advertising cloth and the wrapping components and improving the smoothness of unwinding and rewinding the advertising cloth. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly explained below. Obviously, the described drawings are only a part of the embodiments of the present invention, and not all of them. Those skilled in the art can obtain other design schemes and drawings based on these drawings without creative effort.

[0016] Figure 1 This is an overall front view of the present invention.

[0017] Figure 2 yes Figure 1 A schematic diagram of the AA cross-sectional structure.

[0018] Figure 3 yes Figure 2 A magnified view of part B.

[0019] In the attached diagram: 1-outer shell, 11-transparent plate, 12-wrapping fabric, 13-heat dissipation channel, 21-power roller, 22-driven gear, 23-power gear, 24-synchronous belt, 3-light panel, 41-air deflector, 42-belt conveyor, 43-first bevel gear, 44-second bevel gear, 5-baffle. Detailed Implementation

[0020] The following will clearly and completely describe the concept, specific structure, and technical effects of the present invention in conjunction with embodiments and accompanying drawings, so as to fully understand the purpose, features, and effects of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are all within the scope of protection of the present invention. Furthermore, all connection relationships mentioned herein do not simply refer to direct connection of components, but rather to the ability to form a better connection structure by adding or reducing connecting accessories according to specific implementation conditions. The various technical features in this invention can be combined interactively without contradicting each other.

[0021] Reference Figure 1 An advertising lightbox includes: a housing 1, with transparent panels 11 on its front and rear sides, and fabric wrapping components 12 located at multiple inner corners inside the housing 1; a driving assembly including two power rollers 21 spaced apart in the left-right direction, the two power rollers 21 being rotatable along an axis in the up-down direction, and a fabric passage being provided on the outer side of the power rollers 21, the fabric passage extending radially along the power rollers 21; and a light source assembly including two light panels 3 spaced apart in the front-back direction inside the housing 1, the two light panels 3 emitting light toward the two transparent panels 11.

[0022] Before use, the advertising cloth to be displayed in this advertising lightbox is wrapped around the multiple wrapping parts 12 inside the outer casing 1. When the advertising cloth passes through the left and right power rollers 21, for example, the advertising cloth is passed through the cloth passage located on the left power roller 21 and rotated, so that the advertising cloth is rolled up outside the power roller 21. Then, the two ends of the advertising cloth are respectively guided to the right power roller 21 and positioned in the cloth passage of this power roller 21. When in use, the content displayed on the advertising cloth can be seen from the transparent panels 11 on the front and rear sides of the outer casing 1. 3. Light is emitted through the advertising cloth to the two transparent panels 11 respectively, thereby improving the advertising display effect. When it is necessary to change the display content, the power roller 21 on the right side is rolled up and the power roller 21 on the left side is unrolled, so that the display content on the transparent panel 11 can be changed. In this way, the advertising cloth is directly rolled up on the power roller 21. The advertising content can be changed by rolling up one power roller 21 and unrolling the other power roller 21, which reduces the space occupied by the advertising cloth inside the outer shell 1, facilitates the discharge of internal heat, and better controls the overall volume.

[0023] The housing 1 can be equipped with drive sources at the positions of the two drive rollers 21 to provide power to them. In this embodiment, the housing 1 is equipped with a motor, which is connected to the two drive rollers 21 and can drive them to rotate. The same motor provides rotational driving force to the two drive rollers 21, so that one drive roller 21 rolls up the advertising cloth while the other drive roller 21 unrolls it.

[0024] As a specific structural embodiment that utilizes a single motor to drive two power rollers 21 to rotate simultaneously, such as Figure 2 and Figure 3 As shown, the drive assembly further includes a drive unit, which includes a driven gear 22, a drive gear 23, a transmission wheel, and a synchronous belt 24. The ends of the two drive rollers 21 are coaxially connected to the driven gears 22. Two drive gears 23 are spaced apart in the left-right direction within the housing 1. Each drive gear 23 meshes with one of the driven gears 22. A motor is installed within the housing 1, driving one of the drive gears 23. The motor is connected to the housing 1, and transmission wheels are coaxially connected to each of the two drive gears 23. The synchronous belt 24 is connected to each of the two transmission wheels. The motor drives one of the drive gears 23 to rotate, and the drive gear 23 transmits power through its meshing driven gear 22, driving one drive roller 21 to rotate. Simultaneously, the drive gear 23 transmits power through the transmission wheel and the synchronous belt 24, driving the other drive gear 23 to rotate. Similarly, the meshing of the drive gear 23 with the driven gear 22 transmits power, driving the other drive roller 21 to rotate.

[0025] There can be only one drive unit. In this case, power is provided to the two power rollers 21 from one end, causing the two power rollers 21 to rotate synchronously. In this embodiment, the drive units are respectively provided at the upper and lower ends of the two power rollers 21. When the motor is working, it transmits power to either drive unit, thereby realizing the simultaneous rotation of the two power rollers 21. The other drive unit is also driven to perform transmission. In this way, the two drive units stabilize the upper and lower ends of the power rollers 21 respectively, further improving the stability of changing the content of the promotional cloth.

[0026] When the lamp panel 3 is in operation, it generates a large amount of heat, which needs to be dissipated from the outer casing 1 in a timely manner. In this embodiment, a heat dissipation channel 13 extending vertically is provided inside the outer casing 1, and the two lamp panels 3 are respectively close to the front and rear sides of the heat dissipation channel 13. External airflow can enter the heat dissipation channel 13, pass through the heat dissipation channel 13 vertically, and flow out. During use, the heat generated by the two lamp panels 3 can be transferred to the front and rear sides of the heat dissipation channel 13, and the heat inside the heat dissipation channel 13 is carried away by the airflow passing through the heat dissipation channel 13. This can improve the heat dissipation efficiency of the lamp panel 3 and help extend the service life of the lamp panel 3.

[0027] Furthermore, a ventilation assembly is provided within the heat dissipation channel 13, and the ventilation assembly includes a deflector 41 that can move vertically. When the deflector moves vertically within the heat dissipation channel 13, it can disturb the air inside the heat dissipation channel 13, accelerate the heat exchange between the inside and outside of the heat dissipation channel 13, and thus further improve the heat dissipation efficiency of the lamp panel 3.

[0028] There are various structural forms for the air deflectors 41 that move up and down within the heat dissipation channel 13. For example, a drive source such as an electric screw, cylinder, or hydraulic cylinder can be installed within the heat dissipation channel 13 to drive the air deflectors 41 to move up and down. In this embodiment, the ventilation assembly includes a belt conveyor 42 disposed within the heat dissipation channel 13. The belt conveyor 42 has a conveying surface that can rotate in the vertical direction, and multiple air deflectors 41 are respectively disposed on the conveying surface. When the belt conveyor 42 is working, it can drive multiple air deflectors 41 to rotate in the vertical direction within the heat dissipation channel 13. At this time, the belt conveyor 42 drives multiple air deflectors 41 downward on one side of the heat dissipation channel 13, promoting the formation of airflow from top to bottom at this position. On the other side of the heat dissipation channel 13, the belt conveyor 42 drives multiple air deflectors 41 upward, promoting the formation of airflow from bottom to top at this position, thereby improving the heat dissipation effect of the heat dissipation channel 13.

[0029] The belt conveyor 42 can be a belt conveyor or a chain conveyor. An independent drive source can be configured inside the belt conveyor 42 to drive its movement. To save on drive source resources, in this embodiment, the ventilation assembly includes a first bevel gear 43 and a second bevel gear 44. The first bevel gear 43 is respectively mounted on the two power gears 23, and the second bevel gear 44 is respectively mounted inside the housing 1 at positions corresponding to the two first bevel gears 43. The two first bevel gears 43 mesh with the two second bevel gears 44, and a drive shaft is coaxially connected to each of the two second bevel gears 44. The two drive shafts extend into the heat dissipation channel 13 and are connected to the belt conveyor 42. When the content displayed on the promotional cloth needs to be changed, the two drive wheels rotate, driving the first bevel gears 43 on the two drive wheels to rotate. Since the first bevel gears 43 and the second bevel gears 44 mesh, power can be transmitted to the two drive shafts, thereby providing power to the belt conveyor 42 and causing the multiple air deflectors 41 on the conveying surface of the belt conveyor 42 to move up and down.

[0030] In some embodiments, a cover 5 is provided on the top side of the outer casing 1, the cover 5 covering the heat dissipation channel 13, and an airflow gap is provided between the cover 5 and the top side of the outer casing 1. The cover 5 can shield the heat dissipation channel 13 from the top, preventing rainwater and debris from directly entering the heat dissipation channel 13, thus better protecting the structure inside the heat dissipation channel 13, while the airflow gap allows for heat exchange between the outside air and the inside of the heat dissipation channel 13.

[0031] The wrapping element 12 can be a columnar structure fixed inside the outer casing 1. In this embodiment, multiple wrapping elements 12 are rotatably connected to the outer casing 1 along vertical axes, and the shapes of the multiple wrapping elements 12 are roller-shaped. When the advertising cloth passes around the multiple wrapping elements 12 and moves relative to the multiple wrapping elements 12, the wrapping elements 12 can rotate inside the outer casing 1. This reduces friction between the advertising cloth and the wrapping elements 12, improving the smoothness of unwinding and rewinding the advertising cloth.

[0032] The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited to the embodiments described. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.

Claims

1. An advertising light box, characterized in that: include: The outer shell (1) has transparent plates (11) on its front and back sides respectively, and the outer shell (1) has fabric wrapping pieces (12) located at multiple inner corners. The drive assembly includes two power rollers (21) spaced apart in the left-right direction. The two power rollers (21) are rotatable along the axis in the up-down direction. A fabric passage is provided on the outer side of the power rollers (21), and the fabric passage extends radially along the power rollers (21). The light source assembly includes two lamp panels (3) spaced apart in the front-to-back direction within the housing (1), with the two lamp panels (3) emitting light toward the two transparent plates (11) respectively.

2. An advertising light box according to claim 1, characterized in that: A motor is installed inside the outer casing (1), and the motor is connected to the two power rollers (21) for transmission. The motor can drive the two power rollers (21) to rotate.

3. An advertising light box according to claim 2, characterized in that: The drive assembly further includes a drive unit, which includes a driven gear (22), a power gear (23), a transmission wheel, and a synchronous belt (24). The ends of the two power rollers (21) are coaxially connected to the driven gears (22). Two power gears (23) are spaced apart in the left-right direction inside the housing (1). The two power gears (23) mesh with the two driven gears (22) respectively. A motor is provided inside the housing (1). The motor is connected to any one of the power gears (23). The motor is connected inside the housing (1). Transmission wheels are coaxially connected to the two power gears (23). The synchronous belt (24) is connected to the two transmission wheels respectively.

4. An advertising light box according to claim 3, characterized in that: The two power rollers (21) are respectively provided with drive units at their upper and lower ends.

5. An advertising light box according to claim 3, characterized in that: The outer casing (1) is provided with a heat dissipation channel (13) extending in the vertical direction, and the two lamp panels (3) are respectively close to the front and rear sides of the heat dissipation channel (13).

6. An advertising light box according to claim 5, characterized in that: The heat dissipation channel (13) is provided with a ventilation component, and the ventilation component is provided with a deflector (41) that can move in the up and down direction.

7. An advertising light box according to claim 6, characterized in that: The ventilation assembly includes a belt conveyor (42) disposed in the heat dissipation channel (13), the belt conveyor (42) having a conveying surface that can rotate in the up and down direction, and a plurality of the deflector blades (41) being disposed on the conveying surface.

8. An advertising light box according to claim 7, characterized in that: The ventilation assembly includes a first bevel gear (43) and a second bevel gear (44). The first bevel gear (43) is respectively provided on the two power gears (23). The second bevel gear (44) is respectively provided in the housing (1) at the positions corresponding to the two first bevel gears (43). The two first bevel gears (43) mesh with the two second bevel gears (44). The two second bevel gears (44) are coaxially connected to the two drive shafts. The two drive shafts extend into the heat dissipation channel (13) and are connected to the belt conveyor (42) for transmission.

9. An advertising light box according to claim 5, characterized in that: A cover (5) is provided on the top side of the outer shell (1), the cover (5) covers the heat dissipation channel (13), and an airflow gap is provided between the cover (5) and the top side of the outer shell (1).

10. An advertising light box according to claim 1, characterized in that: Multiple fabric wrapping components (12) are rotatably connected to the outer shell (1) along the vertical axis, and the multiple fabric wrapping components (12) are roller-shaped.

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