Variable-volume sealing detection cover for motor vehicle engine oil filter dry-type sealing performance test
A technology of oil filter and dry seal, which is applied in the direction of liquid tightness measurement using liquid/vacuum degree, and by measuring the increase and deceleration rate of fluid, etc., which can solve the problem of decreased detection accuracy, reduced sensitivity, misjudgment of defective products, etc. problems, to achieve the effect of improving quality and service life, ensuring detection sensitivity and accuracy, and low cost
Pending Publication Date: 2021-11-02
枣庄金飞汽车设备科技有限公司
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[0002] In the past, the internal volume of the seal detection cover of the dry seal test of motor vehicle oil filters is usually fixed, so that when testing different sizes of motor vehicle oil filters, a gap is formed between the detection cover and the motor vehicle oil filter. The difference in cavity volume is very large, that is, the smaller the motor vehicle oil filter, the larger the cavity volume, which will reduce the sensitivity of the detection method based on the pressure change in the cavity, which often results in detection accuracy. Decline or misjudgment of defective products, causing huge irreparable losses to the enterprise
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[0015] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention.
[0016] refer to Figure 1-2 , the variable volume sealing detection cover of the dry type sealing test of the motor vehicle oil filter, including the upper sealing cover 2 and the lower sealing end 5, the upper sealing cover 2 and the lower sealing end 5 are hermetically connected, and the upper sealing cover 2 The lower end is open, and the inside of the upper sealing cover 2 is provided with a sealing piston 3, and the upper end of the sealing piston 3 is rotatably connected to an end of a screw rod 6, and the upper end of the screw rod 6 passes through the top of the upper sealing cover 2, and the upper end of the upper sealing cover 2 The top of the sealing cover...
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The invention relates to the technical field of engine oil filter detection, in particular to a variable-volume sealing detection cover for a motor vehicle engine oil filter dry-type sealing performance test, which comprises an upper sealing cover and a lower sealing end, the upper sealing cover is connected with the lower sealing end in a sealing manner, the lower end of the upper sealing cover is open, a sealing piston is arranged in the upper sealing cover, the upper end of the sealing piston is rotationally connected with one end of a screw rod, the upper end of the screw rod penetrates through the top end of the upper sealing cover, a screw hole is formed in the top end of the upper sealing cover, the screw rod is connected with the upper sealing cover through threads, and a vacuum extraction opening and a detection opening are further formed in the lower end of the side wall of the upper sealing cover; and the volume of the detection cavity can be conveniently adjusted to be minimum as much as possible to ensure the detection sensitivity and precision, the error that defective products cannot be detected is avoided, the quality of the sealing cover can be greatly improved, the service life of the sealing cover can be greatly prolonged, the structure is simple and reasonable, and the manufacturing cost is low.
Description
technical field [0001] The invention relates to the technical field of engine oil filter detection, in particular to a variable-volume seal detection cover for a dry-type sealing test of an engine oil filter of a motor vehicle. Background technique [0002] In the past, the internal volume of the seal detection cover of the dry seal test of motor vehicle oil filters is usually fixed, so that when testing different sizes of motor vehicle oil filters, a gap is formed between the detection cover and the motor vehicle oil filter. The difference in cavity volume is very large, that is, the smaller the motor vehicle oil filter, the larger the cavity volume, which will reduce the sensitivity of the detection method based on the pressure change in the cavity, which often results in detection accuracy. The decline or misjudgment of defective products will cause huge and irreparable losses to the enterprise. Contents of the invention [0003] The object of the present invention is ...
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IPC IPC(8): G01M3/34
CPCG01M3/34
Inventor 张中军
Owner 枣庄金飞汽车设备科技有限公司
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