Handheld LED advertising billboard

Abstract

A handheld LED advertising signboard includes: a signboard frame comprising four frame strips (front, back, left, and right) forming a square frame, thus creating a hollow center; the edges of each frame strip form bevels and are joined together to form a complete frame; a hollow tube is formed inside each frame strip; each frame strip forms a slot facing outwards from the signboard frame; an LED color-changing light strip is embedded in the slot of each frame strip, resulting in a total of four LED color-changing light strips; and an LED white light strip is embedded in the inner side of the signboard frame facing the hollow portion, with each LED white light strip facing inwards from the signboard frame and projecting light into the frame. Therefore, the light emitted by the LED white light strip can be directed into the central cavity. A PC grid heat-resistant board is snapped into the middle of the signboard frame to form a hollow section, which is used for auxiliary light guiding of the LED white light strip. A white light switch and a color switch are located on the outside of the frame strip, and the white light switch and the color switch are electrically connected. A rechargeable battery is located inside the hollow tube to provide power to the internal components. The LED white light strip is electrically connected to the white light switch, and the LED color light strip is electrically connected to the color switch. The white light switch and the color switch are located in front of the front frame strip of the signboard frame, next to a Type-C charging port.

Claims

1. A handheld LED advertising signboard, comprising: a signboard frame comprising four frame strips (front, back, left, and right) forming a square frame, thus the signboard frame has a hollow center; the edges of each frame strip form bevels, and they are joined together to form a complete frame; a hollow channel is formed inside each frame strip; each frame strip forms a slot facing outwards from the signboard frame, and an LED color-changing light strip is inserted into the slot of each frame strip, thus there are four LED color-changing light strips in total; an LED white light strip is inserted into the inner side of the signboard frame facing the hollow portion, each LED white light strip facing inwards from the signboard frame and projecting light into the frame; thus the LED white light... The light emitted by the LED light strip can be directed into the central cavity. A PC grid heat-resistant plate is snapped into the middle of the signboard frame to form a hollow section, which is used for auxiliary light guiding of the LED white light strip. A white light switch and a color switch are located on the outside of the frame strip, and the white light switch and the color switch are electrically connected. A rechargeable battery is located inside the hollow tube to provide power to the internal components. The LED white light strip is electrically connected to the white light switch, and the LED color light strip is electrically connected to the color switch. The white light switch and the color switch are located in front of the front frame strip of the signboard frame, next to a Type-C charging port.

2. The handheld LED advertising signboard as described in claim 1, wherein each frame strip of the signboard frame extends outward toward the upper and lower sides of the hollow portion, thus forming a slot; the slot engages with the PC grid heat-resistant plate.

3. The handheld LED advertising signboard as described in claim 2, wherein sealing strips are glued and fixed to both the upper and lower sides of the slot; after the sealing strip on the inner sidewall of the slot is engaged with the PC grid heat-resistant plate, it is used to fill the gap between the slot and the PC grid heat-resistant plate to prevent foreign objects from entering.

4. As described in claim 2, when the LED white light strip in the frame slot is activated, the light is directly transmitted to the surface of the PC grid heat-resistant plate in the slot, and the light is guided by the PC grid heat-resistant plate to achieve background lighting of the signboard.

5. The handheld LED advertising signboard as described in claim 1, wherein each frame has a corresponding reinforcing block formed at each of the four corners of the hollow tube; each reinforcing block is a long strip with a triangular cross-section, attached to each corner.

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