Valve body for double-cartridge filter

Abstract

The invention relates to a valve body, in particular to a valve body mounted between two filter cartridges in a double-cartridge filter. The valve body comprises a casing, wherein upper inlets are formed in the upper parts of a group of opposite side walls of the casing, and lower openings are formed in the lower parts of the group of the side walls of the casing. An inlet is formed in the lower part of the side wall of the casing, and an outlet is formed in the upper part of the side wall of the casing. A partition board is arranged in the middle of an inner cavity of the casing. A central shaft in vertical arrangement is arranged in the casing. The valve body is characterized in that an upper linkage piston is arranged between the two upper inlets and comprises upper piston units respectively positioned in the two upper inlets, and an upper connecting mechanism is arranged between the two upper piston units. A lower linkage piston is arranged between the two lower outlets and comprises lower piston units respectively positioned in the two lower outlets, and a lower connecting mechanism is arranged between the two lower piston units. An upper eccentric wheel is arranged on the section, between the upper piston units, of the central shaft, and a lower eccentric wheel is arranged on the section, between the two lower piston units, of the central shaft. The valve body is not liable to leak, and long in service life.

Description

technical field [0001] The invention relates to a valve body, specifically a valve body installed between two filter cylinders in a double cylinder filter. Background technique [0002] The duplex filter, also known as the duplex oil return line filter, is composed of two filter cartridges and a valve body located between the two filter cartridges. [0003] At present, the valve body for the duplex filter used in the hydraulic system includes a housing with an inner cavity. The upper part of a group of opposite side walls of the housing has an upper inlet, and the lower part of the side wall of the housing corresponds to the position of the upper inlet. Both have exits. The lower part of the side wall of the housing has an inlet and the upper part has an outlet. The middle part of the inner chamber of the housing has a horizontally arranged partition, and the surrounding of the partition is in a sealed fit with the inner wall of the housing. The upper inlet and outlet are ...

AI Technical Summary

Problems solved by technology

[0004] The problem to be solved by the present invention is to provide a valve body for a double cylinder filter, which is not prone to leakage and has a long service life

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