A locking mechanism for oil filter airtightness detection and its application method
A technology of oil filter and leak detection, which is applied in the direction of measuring the increase and deceleration rate of the fluid, using liquid/vacuum degree to measure the liquid tightness, etc., so as to avoid the effect of air leakage
Active Publication Date: 2018-02-27
邯郸市中泽新材料有限公司
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[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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[0016] The present invention will be described in detail below in conjunction with the accompanying drawings.
[0017] figure 1 It is a structural schematic diagram of the locking mechanism of the oil filter airtightness test of the present invention; in the figure, the tension pendant 1, the hanging shaft 2, the pneumatic clamp 3, the cylindrical support 4, the top wire 5, the moving finger 6, the pneumatic clamp Air hole 7, special piston 8, motion cylinder 9, connection shaft between motion cylinder and piston 10, solenoid valve 12 for controlling motion cylinder, solenoid valve 13 for controlling pneumatic clamp, inflation valve 14, compressed air 15, upper assembly 16, lower assembly 17. Sample 18 of the tested oil filter, sealing ring 19, metal sealing cylinder 20, O-ring 21, sealing cover 22, electromagnetic valve connecting the sealing cover and sensor through air pipe 23, atmosphere 24, sensor 25, standard air chamber 26, the electromagnetic valve 27, atmosphere 28, ...
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The invention discloses a locking mechanism for detecting the tightness of an oil filter and a using method thereof. The locking mechanism for oil filter tightness detection includes an upper assembly of a detection platform for placing the oil filter to be tested and a lower assembly of a detection platform for detection, and is characterized in that: the lower assembly is fixed with a smooth inner metal Sealing cylinder, the metal sealing cylinder is equipped with a pneumatic clamp, a piston is arranged under the pneumatic clamp, the piston is driven by the cylinder, a moving finger is arranged on the upper end of the pneumatic clamp, a bracket is arranged outside the pneumatic clamp, and a hanging shaft and a tension pendant are arranged on the bracket. The tension pendant is connected with the cylindrical support through the hanging shaft, the pneumatic clamp is installed inside the cylindrical support, the finger part of the pneumatic clamp is embedded in the groove of the lower part of the tension pendant, and the lower part of the support is installed on the special piston, the supply of the pneumatic clamp The air is connected to the control solenoid valve through the specially designed air hole on the special piston. The movement cylinder is installed at the bottom of the special piston, and the special piston is driven to move up and down along the smooth inner wall of the metal sealing cylinder through the control of the solenoid valve. The upper component is a replaceable platform, and the upper component It is integrally connected with the lower part by bolts.
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...
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IPC IPC(8): G01M3/32
Inventor 江彩凤
Owner 邯郸市中泽新材料有限公司