Filter

Abstract

The filter comprises a filter element arranged in a shell, a cover plate is arranged in an opening in the top of the shell, a liquid outlet pipe and a liquid inlet pipe are arranged on the cover plate, a supporting mechanism and a locking mechanism which are used for fixing the filter element are arranged in the shell, the cover plate is in threaded connection with the shell, a circle of surrounding edge is further arranged on the edge of the top of the cover plate, and the liquid outlet pipe is connected with the liquid inlet pipe. A sealing ring is arranged on the outer side of the surrounding edge, a mounting hole penetrating through the sealing ring is formed in the side wall of the surrounding edge, a fixing hole corresponding to the mounting hole is formed in the inner wall of the shell, and a limiting rod with one end penetrating through the mounting hole and embedded into the fixing hole is arranged in an opening of the surrounding edge. Wherein a hemispherical convex seat is arranged at the tail end of the limiting rod in the opening of the surrounding edge, a spring I is arranged on the limiting rod between the convex seat and the surrounding edge, a circular ring is arranged in the opening of the surrounding edge above the limiting rod, a screw tube is screwed in the circular ring, and a circle of extrusion part with a right triangle-shaped section is arranged at the bottom of the screw tube. The device is simple in structure and convenient to use.

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