Locking mechanism for sealing detection of oil filter and application method thereof

Abstract

The invention discloses a locking mechanism for sealing detection of an oil filter and an application method thereof. The locking mechanism for the sealing detection of the oil filter includes a detection platform upper part assembly for holding the oil filter to be detected and a detection platform lower part assembly for detecting the oil filter, and is characterized in that: the lower part assembly is fixedly provided with a metal seal cylinder with a smooth inner wall; a pneumatic clamp is arranged in the meta seal cylinder; a piston is arranged below the pneumatic clamp; the piston is driven by an air cylinder; the upper end of the pneumatic clamp is provided with a movable finger; a support is arranged outside the pneumatic clamp; the support is provided with a hanging shaft and a tensioning hanging piece; the tensioning hanging piece is connected with the cylindrical support via the hanging shaft; the pneumatic clamp is arranged inside the cylindrical support; the finger part of the pneumatic clamp is embedded inside a groove at the lower part of the tensioning hanging piece; the lower part of the support is arranged on a special piston; air supply of the pneumatic clamp is that an air passing hole specially designed on the special piston is connected with a control solenoid valve; the lower part of the special piston is provided with a movable air cylinder; the special piston is driven by the control solenoid valve to move up and down along the smooth inner wall of the metal sealing cylinder; the upper part assembly is a replaceable platform; and the upper part assembly and the lower part assembly are combined as a whole through a bolt.

Description

technical field [0001] The invention relates to a special sealing and locking mechanism for a dry-type leak detection machine of an oil filter, in particular to a locking mechanism for detecting the airtightness of an oil filter. Background technique [0002] At present, the seal tensioning mechanism of the filter dry leak detector usually uses a large-diameter cylinder to directly tighten the seal. Since the tie rod and the grab head are used in the middle, a sealing ring is required between the pull rod and the shaft sleeve. Due to the possible non-axis Strong friction can easily damage the sealing ring and cause air leakage, resulting in poor stability of the test results. Contents of the invention [0003] The present invention proposes a locking mechanism for detecting the tightness of an oil filter. The sealing performance of the sealing cavity of the locking mechanism is better, and a better detection means for the tightness of the oil filter is provided for the det...

AI Technical Summary

Problems solved by technology

[0003] The present invention proposes a locking mechanism for detecting the tightness of an oil filter. The sealing performance of the sealing cavity of the locking mechanism is better, and a better detection means for the tightness of the oil filter is provided for the detection of the tightness of the oil filter. The purpose of flushing stable compressed air inside the oil filter is to avoid the defect that the existing mechanism is prone to air leakage, and it is stable and reliable

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