Telescopic concrete pump pipe assembly

Abstract

The invention provides a telescopic concrete pump pipe assembly. The telescopic concrete pump pipe assembly comprises an original pipe, a telescopic pipe, a cylinder barrel and pressure supply equipment, wherein the telescopic pipe can axially slide relative to the original pipe; one section of the telescopic pipe is sleeved to the cylinder barrel; an annular cavity is formed between the inner wall of the cylinder barrel and the outer wall of the telescopic pipe; the two ends of the annular cavity are respectively closed by a cylinder barrel front end cover and a cylinder barrel rear end cover; the annular cavity is divided into a first cavity and a second cavity which are not communicated with each other through an annular piston; a first injection opening and a second injection opening are respectively formed in positions where the side wall of the cylinder barrel is close to the cylinder barrel front end cover and the cylinder barrel rear end cover; fluid supply equipment injects pressure fluid into the first injection opening or the second injection opening; a piston drives the telescopic pipe to move towards the first injection opening or the second injection opening; the telescopic pipe retracts or extends relative to the original pipe. The invention provides a pipeline capable of performing telescopic control, which can be conveniently lifted according to requirements, and ensures that the height of a pump pipe orifice keeps consistent with that of a concrete liquid level.

Description

technical field [0001] The invention relates to the technical field of design of concrete pump pipes. Background technique [0002] In order to achieve the purpose of intelligent pouring of self-compacting concrete, concrete placing machines are used for concrete pouring. Intelligent pouring requires a constant distance between the distributing pipe nozzle of the distributing machine and the concrete liquid level. During the concrete pouring process, the concrete liquid level will continue to rise, so it is required that the distributing pipe nozzle can also rise with the concrete liquid level. However, in the prior art, there is a lack of effective equipment to achieve this technical purpose. In view of this situation, the present invention designs a telescopic and controllable pipeline with adjustable height. Contents of the invention [0003] The purpose of the present invention is to make up for the deficiencies of the prior art and provide a scalable concrete pump pi...

AI Technical Summary

Problems solved by technology

However, in the prior art, there is a lack of effective equipment to achieve this technical purpose. In view of this situation, the present invention designs a telescopic and controllable pipeline with adjustable height

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