Hole-forming pulling pipe for pile foundation quality ultrasonic detection

Abstract

The invention belongs to the technical field of building construction, and particularly relates to a hole-forming pulling pipe for pile foundation quality ultrasonic detection. The hole-forming pulling pipe comprises an inner pipe and an outer pipe; the outer pipe sleeves the inner pipe, and a plurality of annular airbags are fixedly connected to the outer side wall of the inner pipe in a sleevingmode and filled with air; a plurality of vertically penetrating through holes are formed in the side wall of the outer pipe, and annular sealing rings are fixedly connected to the side walls of the through holes; the outer side walls of the annual airbags are fixedly connected with sealing heads; and the ends, away from the annular airbags, of the sealing heads extend into the through holes, andthe two ends of the outer pipe are provided with clamping mechanisms used for sealing a gap between the outer pipe and the inner pipe. The hole-forming pulling pipe has the advantages that a soap solution permeates into an interlayer between the outer pipe and the inner pipe through the through holes and is extruded through expansion of the annular airbags, the utilization rate is high, and the lubrication effect is better; and the position between the outer pipe and the inner pipe is filled with the annular airbags, the capacity of resisting extrusion deformation of the pulling pipe is improved, the service life of the pulling pipe is prolonged, and the working efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of building construction, in particular to a hole-forming extraction pipe used for ultrasonic detection of pile foundation quality. Background technique [0002] The extraction tube is a new type of mandrel used for forming small-diameter holes in concrete components, and is mainly used for forming holes in concrete in the construction industry. Among them, the rubber extraction tube takes advantage of its high strength, high elasticity and incompressible rubber volume. When the tube body is stressed in the axial direction, it will elongate in the axial direction and bend naturally in the radial direction, which has good economic benefits. [0003] Before each use of the extraction tube, the surface of the extraction tube must be evenly smeared with soap solution, so as to prevent the extraction tube from sticking to the concrete and lubricate it during extraction, which can greatly improve the repeated use ...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the problem that the extraction tube in the prior art has a short service life and complex operation when used, and proposes a hole-forming extraction tube for ultrasonic testing of pile foundation quality that is easy to operate and has a long service life.

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