Height limiting board used for road construction

Abstract

The invention discloses a height limiting board used for road construction. The height limiting board comprises a crossbeam. An LED display screen is fixedly connected to the middle portion of the crossbeam. A first installation box and a second installation box are welded to the two ends of the crossbeam. The end, close to the second installation box, of the crossbeam is fixedly connected with astorage battery. The end, close to the first installation box, of the crossbeam is fixedly connected with a motor. A transmission shaft is rotationally connected to the inner portion of the first installation box. The end, close to the motor, of the transmission shaft is connected with a shaft sleeve in a sliding mode. The shaft sleeve is fixedly connected with an output shaft of the motor. A clamping groove is formed in the shaft sleeve. The outer side of the end, close to the motor, of the transmission shaft is sleeved with a snap ring. The height limiting board is novel in structure, the limiting height can be adjusted freely according to requirements, the height limiting board can be installed at a low height initially, after being installed on the ground, the height limiting board canascend to the required height through transmission of friction wheels, danger of upper-air operation is avoided, and meanwhile the LED display screen can be used brightly day and night.

Description

technical field [0001] The invention relates to the technical field of road height limitation, in particular to a height limitation board for road construction. Background technique [0002] After the road construction is completed, in some road sections, due to poor road conditions, bridge load restrictions, etc., height-limiting devices are often installed at both ends of the corresponding passing roads to restrict vehicles of a certain height from passing through the section; but because some The driver driving the vehicle did not notice the existence of the height limiter when passing the road section, or underestimated the height of his own vehicle, which caused the top of the vehicle to scratch the height limiter, causing damage to the vehicle or goods, and even casualties in severe cases . Contents of the invention [0003] The purpose of the present invention is to solve the shortcomings in the prior art, and propose a height limit board for road construction. ...

AI Technical Summary

Problems solved by technology

[0002] After the road construction is completed, in some road sections, due to poor road conditions, bridge load restrictions, etc., height-limiting devices are often installed at both ends of the corresponding passing roads to restrict vehicles of a certain height from passing through the section; but because some The driver driving the vehicle did not notice the existence of the height limiter when passing the road section, or underestimated the height of his own vehicle, which caused the top of the vehicle to scratch the height limiter, causing damage to the vehicle or goods, and even casualties in severe cases

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