A multi-ring porous construction device for cutting off uncured cement concrete pile heads

Abstract

The invention relates to a multi-ring porous construction device for cutting uncured cement concrete pile heads, which includes a fan-shaped blade box, a multi-ring porous ring body, and a transmission shaft, and is characterized in that the outside of the transmission shaft is rotatably connected by a bearing There is a fan-shaped blade box, the outer wall of the fan-shaped blade box is fixedly connected with the inner wall of the multi-ring porous torus, the outer side of the transmission shaft is connected with the multi-ring porous torus through a rectangular steel sheet, and the multi-ring porous torus The body is provided with elliptical holes, and there are several elliptical holes in total, and the several elliptical holes are distributed in a circular array on the multi-ring porous ring body. The elliptical hole on the multi-ring porous torus is used in conjunction with it, which can be applied to concrete piles with various steel bar quantities, positions, diameters, and distributions. It has strong flexibility and a wide range of applications. The combination of fan-shaped blades and multi-ring porous torus , can cut off the wet concrete as a whole.

Description

technical field [0001] The invention belongs to the technical field of building and bridge construction, and in particular relates to a multi-ring porous construction device for cutting uncured cement concrete pile heads. Background technique [0002] During the pouring of cast-in-place concrete piles, due to vibration, the cement slurry will return upwards and rise together with the air bubbles inside the concrete, forming laitance within a certain range on the top of the pile, so the strength of the concrete at the pile head is difficult to guarantee; When the concrete is placed, the mud and mortar mixture at the pile head will accumulate the most, resulting in loose concrete at the pile head, and the strength cannot meet the requirements. Therefore, during the construction of concrete pouring piles, the actual elevation of the pile head is required to be 500-1000mm higher than the design elevation, and the higher part is removed manually or mechanically, which is usually ...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a multi-ring porous construction device for cutting uncured cement concrete pile heads, so as to solve the problem of high construction strength, low efficiency, relatively large damage to steel bars, and easy generation of a large amount of concrete debris. crumbs problem

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