Drilling and sampling device for road detection

Abstract

The invention discloses a drilling and sampling device for road detection. The drilling and sampling device comprises a guide rail and a drilling barrel, a supporting plate is fixedly installed on theguide rail, a hydraulic rod is fixedly installed on the supporting plate, a driving rod is fixedly installed on the drilling barrel, a connecting plate is installed on the driving rod, and a throughhole matched with the driving rod is formed in the connecting plate; a bearing is fixedly installed between the through hole and the driving rod, a driving motor is fixedly installed on the connectingplate, and the output end of the driving motor is fixedly connected with the driving rod; two connecting rods are fixedly installed on the connecting plate; and two screw holes are formed in each ofthe two connecting rods. The drilling and sampling device has the advantages that when drilling sampling operation is carried out, only one-time drilling operation needs to be carried out, then a sample in the hole diameter is taken out, the operation mode is simple and convenient, the damage degree to the road surface is relatively small, moreover, the shaking amplitude of the drilling barrel inthe drilling process is relatively small, and the damage degree to the road surface and the possibility of damage to the device can be reduced.

Description

technical field [0001] The invention relates to the technical field of road inspection, in particular to a drilling sampling device for road inspection. Background technique [0002] Highway is an engineering facility for various vehicles (trackless) and pedestrians. According to its use characteristics, it is divided into urban roads, highways, factory and mine roads, forest roads and rural roads. With the development of society, the number of private and freight vehicles is gradually increasing. , resulting in a gradual increase in the workload of the road, the construction quality of the road determines the life cycle of the road and its workload. [0003] Therefore, after the completion of highway construction, its quality inspection is required, including subgrade inspection, on-site inspection of subgrade soil compactness, subgrade and base layer deflection inspection, pavement core inspection, base bearing capacity test, and road slope inspection. [0004] Among them...

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Problems solved by technology

[0004] Among them, when inspecting the compactness of the subgrade soil, it is necessary to randomly carry out sampling operations on the road. The current sampling operations are mostly carried out by drilling sampling devices. The existing drilling sampling devices have the following deficiencies during use: the use of drill The drilling operation on the road surface makes multiple drill holes form a ring, and then the samples are taken out. This operation forms a large cavity on the road surface and takes a long time to operate; the drill bit and its upper casing are prone to shaking during the drilling process , leading to cracks in the subgrade around the aperture, reducing the service life of the road, and when the shaking is large, it is easy to cause damage to the drilling device

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