Drill rod detection device for building foundation

Abstract

The invention discloses a drill rod detection device for a building foundation. The device comprises a roller, a mounting rack, an annular rotating plate, a spur gear, a gear ring, a driving seat, a lead screw, a U-shaped mounting plate, a conveying roller, a conveying belt, a guide rod, a guide seat, a U-shaped plate, a square frame, a first chain wheel, a first stepping motor, a guide plate, a limit seat, a drill hammer, a limit hole, a drill rod, a limit pin, a mounting sleeve, an annular plate, a threaded rod, an arc-shaped brush, a second stepping motor, a second chain wheel and an electric pushrod. According to the drill rod detection device, through mutual cooperation of the arranged conveying belt, U-shaped mounting plate, conveying roller, guide plate, guide seat and electric pushrod, the drill hammer can be better driven to move in the vertical direction, the drill hammer is more stable in the moving process, and therefore free falling motion of the drill hammer is better realized; and meanwhile the free falling height of the drill hammer can be better adjusted, so that drill rod detection efficiency is greatly improved.

Description

technical field [0001] The invention relates to a drilling device, in particular to a drilling device for building foundations, and belongs to the technical field of foundations. Background technique [0002] Foundation drilling is a construction process for soil layer detection. The standard diameter steel drill with marked scale is mechanically or manually hit into the foundation soil layer with a hammer of calibrated weight; according to the steel drill enters the foundation to be detected The number of hammers required for the soil layer is used to detect the hidden structure in the soil layer or roughly estimate the allowable bearing capacity of the soil layer. [0003] When drilling the foundation, most of them drive the drill hammer to move in the vertical direction through the chain and the chain lugs, so as to realize the free fall movement of the drill hammer, but the chain is relatively soft, so that the chain lugs drive the drill hammer. The movement of the hamm...

AI Technical Summary

Problems solved by technology

[0003] When drilling the foundation, most of them drive the drill hammer to move in the vertical direction through the chain and the chain lugs, so as to realize the free fall movement of the drill hammer, but the chain is relatively soft, so that the chain lugs drive the drill hammer. The movement of the hammer is unstable, and the height of the free fall of the drill hammer is relatively fixed and difficult to adjust, which greatly reduces the drilling efficiency, and after the foundation drilling is completed, a large amount of soil remains on the drill rod, which is cumbersome to clean up and greatly Improve the working intensity of the staff

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