A piston valve body cleanliness detection device

By introducing a multi-stage filter element and a cleaning slide frame extraction-return system into the piston valve body cleanliness testing device, the problem of secondary pollution during air replacement is solved, ensuring the accuracy of the test results.

CN224471638UActive Publication Date: 2026-07-07ANLOCK FLUID TECH (LANGFANG) CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ANLOCK FLUID TECH (LANGFANG) CO LTD
Filing Date
2025-05-22
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

Existing piston valve body cleanliness testing devices are prone to introducing external contaminants when changing air, affecting the accuracy of the test results.

Method used

A piston valve body cleanliness detection device was designed, which adopts a multi-stage filter element and a cleaning slide frame structure. Through the circulation system of the air extraction chamber and the air return chamber, the device maintains a clean environment inside and prevents external air from entering.

Benefits of technology

This effectively maintains a clean environment within the testing frame, prevents secondary pollution from external air, and ensures the accuracy of test results.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224471638U_ABST
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Abstract

This utility model discloses a piston valve body cleanliness testing device, relating to the field of piston valve body testing technology. It includes a testing frame, with a filter screen placed between the inner walls of the frame. A flushing pipe is located on one side of the frame, with its output end extending directly above the filter screen. A circulation top plate is fixedly connected to the top side of the frame, and the top side of the circulation top plate is connected to a cleaning chamber via an air extraction port. This utility model, through the arrangement of multiple cleaning sliding frames and corresponding multi-stage filter elements, extracts air from the testing frame, filters out impurities from the air, and injects cleaned air back into the testing frame through a return air chamber. This maintains a clean environment within the testing frame without replacing the air inside, preventing secondary contamination from external air and ensuring the accuracy of the testing results.
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