Road sign device with self-cleaning function

Abstract

The invention discloses a road sign device with a self-cleaning function, which comprises a mounting column, an air collecting box is fixedly arranged at the upper end of the mounting column, a flat elastic air bag is fixedly arranged on the side, away from the mounting column, of the air collecting box, and a road sign plate is fixedly arranged on the side, away from the air collecting box, of the elastic air bag; a first one-way valve is arranged on the side edge of the elastic air bag and leads to the interior of the elastic air bag from the outside, a second one-way valve is arranged between the elastic air bag and the air collecting box and leads to the interior of the air collecting box from the interior of the elastic air bag, and vertically-arranged sliding cavities are formed in the two sides of the road sign plate, a piston block is arranged in the sliding cavity in a sliding and sealing mode, and a gas collection box communicates with a gas guide pipe through a pressure valve. According to the road sign device, the elastic air bag is arranged between the road sign body and the mounting column, the elastic air bag plays a good role in buffering and damping, and when the road sign body is suddenly stressed by external force, impact at the joint of the mounting column and the air collecting box is relieved.

Description

technical field [0001] The invention belongs to the technical field of road traffic, in particular to a road marking device with self-cleaning function. Background technique [0002] Road signs are graphics and text that display road information, which can express recent road information vividly and concretely. Road signs are generally fixedly installed on the installation column, and the fixed configuration of the installation column is on the ground. [0003] Due to the flat structure of the road sign, when a foreign object hits the road sign, it will cause an impact on the connection between the road sign and the installation column, and the connection is prone to loosening, which not only affects the display of information, but also has safety Hidden dangers; and in areas with large wind changes, sudden wind changes will also cause the above-mentioned impact on road signs; [0004] At the same time, dust or debris in the air will adhere to road signs. In order not to a...

AI Technical Summary

Problems solved by technology

[0003] Due to the flat structure of the road sign, when a foreign object hits the road sign, it will cause an impact on the connection between the road sign and the installation column, and the connection is prone to loosening, which not only affects the display of information, but also has safety Hidden dangers; and in areas with large wind changes, sudden wind changes will also cause the above-mentioned impact on road signs;

[0004] At the same time, dust or debris in the air will adhere to road signs. In order not to affect the display of road information, it needs to be cleaned regularly by manpower. Manual cleaning is time-consuming and laborious. It is more difficult to clean road signs at high places.

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