Pumping mechanism and material pumping equipment comprising same

Abstract

Disclosed is a pumping mechanism of material pumping equipment, wherein a rod chamber (21) and a non-rod chamber (22) of a transfer cylinder thereof are in communication with a suction pipe (4) of the pumping mechanism respectively via a first valve (41) and a second valve (42), and the rod chamber (21) and the non-rod chamber (22) are in communication with a discharge pipe (5) of the pumping mechanism respectively via a third valve (51) and a fourth valve (52). When a piston (31) of the transfer cylinder moves to the end of the non-rod chamber (22), the second valve (42) and the third valve (51) are closed and the first valve (41) and the fourth valve (52) are opened. When the piston (31) of the transfer cylinder moves to the end of the rod chamber (21), the second valve (42) and the third valve (51) are opened and the first valve (41) and the fourth valve (52) are closed. The pumping mechanism can improve the continuity of the spraying operation. Also disclosed is material pumping equipment comprising the pumping mechanism mentioned above.

Description

technical field [0001] The invention relates to the technical field of engineering machinery, in particular to a pumping mechanism of material pumping equipment. In addition, the present invention also relates to a material pumping device comprising the above-mentioned pumping mechanism. Background technique [0002] Mortar spraying machine is a commonly used material pumping equipment. It is a machine that disperses mortar into mist and sprays it on the surface of the object to be coated. It is suitable for reinforcement, leveling, and painting. It can be used for ordinary mortar plastering of interior and exterior walls. Smoothing plaster, insulation mortar, bonding mortar, lime plaster, repair plaster, face plaster, tile bonding and filling mortar, etc. [0003] The mortar spraying machine is mainly composed of a pumping mechanism, a power unit, an air compressor, a stirring device and a hopper. It is transported to the outlet of the front end by the pumping mechanism, ...

AI Technical Summary

Problems solved by technology

[0007] It can be seen that the pressure controllable mortar pump disclosed in Chinese patent document CN200920090858.6 can realize the pumping of mortar, however, the reciprocating motion of the piston type pump body of this mortar pump can only complete one suction and discharge process at a time, resulting in Mortar pumps work less efficiently

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