Billboard device

Abstract

The invention discloses a billboard device which comprises an installation frame and a clamping column, wherein a billboard is fixedly arranged on the front end surface of the clamping column; a guide convex rod which is located at the center and is expanded from front to back is arranged on the bottom wall of an installation cavity of the installation frame; a guide concave hole matched with the guide convex rod is formed in the bottom wall of the clamping column; left and right corresponding promoting grooves are formed in the bottom wall of the clamping column; first limiting grooves are correspondingly formed in two sides of the promoting grooves; fluctuation devices poking into the promoting grooves are correspondingly arranged at the left and right of the bottom wall of the installation cavity of the installation frame; each fluctuation device comprises a movable groove and a movable plate, wherein the inlet of the movable groove faces the installation cavity, and the movable plate is movably arranged in the movable groove; a threaded sleeve shell is fixedly arranged at the center of the lower end of the movable plate; a screw rod is arranged in the threaded sleeve shell in screw-thread fit; and the screw rod is connected with an electric rotating machine fixedly arranged at the bottom end of the movable groove.

Description

technical field [0001] The invention relates to the field of cargo transportation, in particular to a billboard device. Background technique [0002] Nowadays, billboards are widely used. Billboards are used to display the product information of enterprises or merchants and play a role in publicity. As the products of enterprises or merchants are updated, the content displayed on billboards also needs to be updated. Billboards are generally installed on high places. It is fixed on the mounting frame body by fastening bolts. When the billboard needs to be replaced, the traditional installation method needs to remove all the fastening bolts, which is extremely inconvenient to operate and greatly reduces the work efficiency of the staff. Contents of the invention [0003] The object of the present invention is to provide a billboard device and its usage method, which can overcome the above-mentioned defects of the prior art. [0004] According to the present invention, a bil...

AI Technical Summary

Problems solved by technology

[0002] Nowadays, billboards are widely used. Billboards are used to display the product information of enterprises or merchants and play a role in publicity. As the products of enterprises or merchants are updated, the content displayed on billboards also needs to be updated. Billboards are generally installed on high places. It is fixed on the installation frame body by fastening bolts. When the billboard needs to be replaced, the traditional installation method needs to remove all the fastening bolts, which is extremely inconvenient to operate and greatly reduces the working efficiency of the staff.

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