Expressway pavement crack repairing device

Abstract

The invention discloses an expressway pavement crack repairing device. The device comprises a hard pipe of which the two ends are respectively communicated with a feeding hole of an asphalt conveying device and an elastic pipe, wherein the other end of the elastic pipe is connected with a sprayer, a connecting plate is fixed to the side wall of the hard pipe, and a first shaft and a second shaft are arranged on the two sides of the bottom of the connecting plate respectively. The first shaft is sleeved with and hinged to two first clamping plates which are arranged in an X-shaped crossed mode. And a first spring is fixed between the inner plate surfaces of the lower sides of the two first clamping plates. The second shaft is sleeved with and hinged to two second clamping plates which are arranged in an X-shaped crossed mode. And the outer plate surfaces of the upper sides of the two first clamping plates are clamped between the inner plate surfaces of the lower sides of the two second clamping plates. The elastic pipe is clamped between the upper side inner plate faces of the two second clamping plates, and a second spring is fixed between the lower side inner plate faces of the two second clamping plates. When a pavement crack is subjected to crack pouring repair, the change of the flow of asphalt sprayed by the spray head can be correspondingly adjusted according to the change of the width of the crack so as to implement targeted filling.

Description

technical field [0001] The invention relates to the technical field of pavement repair, in particular to a device for repairing cracks in expressway pavement. Background technique [0002] Most highway pavements refer to various types of road surfaces paved with asphalt materials mixed with mineral materials. Asphalt binders improve the ability of paving aggregates to resist road damage from driving and natural factors, making the road smooth and less dusty , impermeable and durable, it is an extremely extensive high-grade pavement used in road construction. [0003] The most common road surface damage is road cracks. Highway cracks are cracks in the surface layer or cracks in the surface layer caused by the subsidence of the base. The width of the cracks often changes irregularly. When repairing road cracks, it is necessary to fill the cracks with asphalt For repairing, the existing repair device cannot automatically adjust the flow rate of asphalt when filling the crack a...

AI Technical Summary

Problems solved by technology

[0003] The most common road surface damage is road cracks. Highway cracks are cracks in the surface layer or cracks in the surface layer caused by the subsidence of the base. The width of the cracks often changes irregularly. When repairing road cracks, it is necessary to fill the cracks with asphalt For repairing, the existing repair device cannot automatically adjust the flow rate of asphalt when filling the crack according to the width of the crack, and cannot realize more rapid flow of asphalt during the repair of large-size cracks. A smaller amount of asphalt flows out more slowly during the process, making crack repair less scientific and reasonable

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