Direction board device for bridge

Abstract

The invention discloses a direction board device for a bridge. The direction board device for the bridge comprises a base. A pushing cavity is formed in the base. Sliding connection cavities are formed in the upper side and the lower side of the pushing cavity correspondingly. Each sliding connection cavity is provided with a spiral rod, and the right side end of each spiral end is in power connection with a first driver. A sliding connection block is arranged in the pushing cavity. Pushing blocks extending into the sliding connection cavities correspondingly are arranged on the upper side and the lower side of the sliding connection block correspondingly. The pushing blocks are connected with the spiral rods through spiral threads in a matched mode. An external spiral thread joint part is arranged on the left side of the sliding connection block. A storage tank is arranged in the external spiral thread joint part. Sliding holes are formed in the position, on the right side of the storage tank, in the sliding connection block. Plug holes are formed in the corresponding inner wall, on the right side of the sliding holes, of the base. A direction board is arranged on the left side of the storage tank correspondingly. The direction board device for the bridge is simple in structure, convenient to operate and high in safety, power supply connection is firm, and the risk that people get an electric shock when touching the plug holes is effectively avoided.

Description

technical field [0001] The invention relates to the technical field of sign boards used on bridges, in particular to a sign board device used on bridges. Background technique [0002] Various signboards can often be seen on some bridges, which are mainly used for traffic guidance to passing vehicles or to remind or warn vehicles passing on the bridge under bad weather conditions. However, the signage needs to be powered when it is working. In the prior art, the power supply is generally through the plug-in method. The power supply method is not stable. When the wind on the bridge is strong, the signboard is easily shaken due to the large force-bearing area. As a result, the plug port is loose and the power supply connection is interrupted, causing traffic disorder and seriously affecting the normal passage of vehicles on the bridge. At the same time, the traditional signage connection method makes the power port easily exposed to the outside world. It is very prone to condu...

AI Technical Summary

Problems solved by technology

However, the signage needs to be powered when it is working. In the prior art, the power supply is generally through the plug-in method. The power supply method is not stable. When the wind on the bridge is strong, the signboard is easily shaken due to the large force-bearing area. As a result, the plug port is loose and the power supply connection is interrupted, causing traffic disorder and seriously affecting the normal passage of vehicles on the bridge. At the same time, the traditional signage connection method makes the power port easily exposed to the outside world. Very prone to conduction phenomenon, there is a greater safety hazard

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