Improved structure pump valve for concrete mixture pumping...

F - Mech Eng,Light,Heat,Weapons – 04 – B

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F04B 53/10 (2006.01) B60P 3/16 (2006.01) F04B 7/00 (2006.01) F04B 15/02 (2006.01)

Patent

CA 2203708

A pump valve for concrete mixture pumping trucks includes a valve assembly and an S-bend pipe. The valve assembly includes a valve body housing a pair of steel rings secured by a front connecting piece. The top end of the S-bend pipe is in conjoinment with another steel ring. Over the top end of the S-bend pipe is a threaded rod. Axially oriented splines are on the threaded rod. The center of the threaded rod is aligned with the center line of the S-bend tube. During utilization, a number of bolts are used to fasten the valve body to the upper ends of two pistons. The S-bend pipe utilizes the axially oriented splines for fastening to a crank tip.

Soupape de pompe pour camions de pompage destinés au mélange de béton et comportant un ensemble de pompe ainsi qu'un tuyau en S. L'ensemble de pompe est constitué du logement d'un corps de pompe abritant une paire d'anneaux en acier assujettis par une pièce de connexion frontale. L'extrémité supérieure du tuyau en S est reliée à un autre anneau en acier et est équipée d'une tige filetée avec cannelures orientées axialement, tige dont le centre s'aligne avec la ligne centrale du tube en S. Lors de son utilisation, un certain nombre de boulons servent à fixer le corps de la soupape sur les extrémités supérieures de deux pistons. Le tuyau en S utilise les cannelures orientées axialement pour se fixer au bout d'une manivelle.

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