Drilling tool protecting frame with slurry injection function

Abstract

A drilling tool protecting frame with a slurry injection function comprises a first drilling rod, a second drilling rod, a first cutting wing, a second cutting wing, a first stirring wing, a second stirring wing, a first slurry injection pipe, a second slurry injection pipe, a first rotating connector, a second rotating connector, a first valve, a second valve, a first drilling bit, a second drilling bit, a retaining frame and a slurry injection pipeline. The first slurry injection pipe and the second slurry injection pipe are arranged at the centers of inner cavities of the first drilling rodand the second drilling rod correspondingly, the upper ends of the first slurry injection pipe and the second slurry injection pipe are connected with the first rotating connector and the second rotating connector correspondingly, and the first valve and the second valve are fixedly installed at the lower ends of the first slurry injection pipe and the second slurry injection pipe correspondingly; the retaining frame is formed by butt joint of two symmetrical frame bodies; and the slurry injection pipeline is arranged on the retaining frame, the upper end of the slurry injection pipeline is fixedly provided with a slurry pipe connector and then externally connected with another slurry injection pipeline, and the two ends of the slurry injection pipeline are connected to slurry injection inlets of the first rotating connector and the second rotating connector correspondingly. Slurry does not need to be conveyed through the drilling rods, so that water quality pollution caused by slurryleakage in the process of lengthening and detaching a drilling tool is prevented, the practicability of the drilling tool is improved, energy sources are greatly saved, and operation safety is effectively guaranteed.

Description

technical field [0001] The invention belongs to a drilling tool for building foundation construction and foundation improvement, in particular to a drilling tool guard with grouting function. Background technique [0002] In the process of foundation construction of urban high-rise buildings, subway stations, underground spaces, embankment reinforcement and soft soil foundation improvement, agitator drilling machines are generally used for construction. Drilling tools are essential parts for drilling with mixing drilling machines. Drilling tools are mainly composed of active drill rods, cutting wings, drill bits, and some also have grouting pipes and stirring wings, which are designed and configured according to engineering needs. Drilling tools are mainly used to give pressure and rotary torque to the drill bit during the process of drilling rock and soil layers, and some also transport liquids such as mud into the drilling hole, and then form piles after being stirred even...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a drilling tool guard with grouting function according to the deficiencies in the prior art, which can solve the problem that the drilling tool is easy to intrude into dust and impurities when it is extended and disassembled during work, which affects equipment performance and pile formation. It solves the problem of water pollution caused by the lengthening and dismantling of drill pipes, and solves the problem that drilling tools can only transport slurry through directly connected drill pipes, which requires high sealing performance of drill tool joints

Images