Concrete pumping device and pumping mechanism thereof

Abstract

The invention discloses a pumping mechanism, which comprises a conveyer cylinder, a water tank and a concrete piston in cooperation with a cylinder barrel of the conveyer cylinder, wherein the cylinder barrel of the conveyor cylinder is communicated with the inner cavity of the water tank, and the pumping mechanism further comprises a centering device for supporting the concrete piston, wherein the centering device is arranged in the inner cavity of the water tank, so that the central line of the concrete piston coincides with that of the cylinder barrel when the concrete piston is on the centering device. By using the pumping mechanism disclosed by the invention, the concrete piston is lifted up in disassembly and assembly of the concrete piston, without need of manpower support, and thus the centering work can be conveniently carried out when the concrete piston in the pumping mechanism is replaced. The invention also discloses a concrete pumping device comprising the pumping mechanism.

Description

technical field [0001] The invention relates to the technical field of engineering machinery, in particular to a pumping mechanism of concrete pumping equipment; the invention also relates to a concrete pumping equipment including the above-mentioned pumping mechanism. Background technique [0002] With the rapid development of the national economy and urban construction, the improvement of project quality requirements, and the emergence of the quality advantages of industrialization and specialized mass production of concrete, ready-mixed concrete has been increasingly adopted by the majority of builders, and pre-mixed concrete Concrete is pumped to the target position through concrete conveying equipment, which greatly improves work efficiency. Therefore, concrete conveying equipment has attracted more and more attention. [0003] The pumping mechanism is the main device of the concrete pumping equipment. Most of them have a double cylinder structure. Through the alternati...

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Problems solved by technology

[0010] Although the above method can make the disassembly of the concrete piston 13 more convenient, when the concrete piston 13 is replaced, when the concrete piston 13 withdraws from the delivery cylinder 11 and enters the water tank 12, it still needs to be artificially lifted and centered. It cannot be loosened until the bolt connection is completed, which is very time-consuming and laborious

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