One-way valve rubber tube positive pressure opening and negative pressure leakage detection device and operation method

Abstract

The invention relates to a one-way valve rubber tube positive pressure opening and negative pressure leakage detection device and operation method. The detection device comprises a positive pressure opening test circuit and a negative pressure leakage test circuit; the control of the positive pressure charging of the positive pressure opening circuit is realized by a positive pressure regulating valve 1; in the negative pressure leakage circuit, negative pressure is generated by adopting a vacuum generator 2, and the control of the negative pressure charging is realized by a negative pressure regulating valve 3; and the on-off of both the circuits is controlled by an electromagnetic valve 4, and the two circuits are in parallel connection, so that the mutual interference between the two circuits is avoided, and the functions of the detection of positive pressure opening and negative pressure leakage can be performed individually. The detection device comprises a touch screen of a man-machine interface, the touch screen of the man-machine interface realizes the input of test parameters, charge pressure, time and pressure detection value are preset through the interface, and work orders are given by a control system. Detection parameters can be set by workers according to the actual specifications and requirements of a rubber tube to be detected, and thus, the flexibility in detection is enlarged. The one-way valve rubber tube positive pressure opening and negative pressure leakage detection device is simple in structure, easy to operate by workers and high in degree of intelligence and can be popularized and applied to rubber tube enterprises.

Description

technical field [0001] The invention relates to the field of rubber hose detection, in particular to a positive pressure opening and negative pressure leakage detection device and operation method for a rubber hose of a one-way valve. Background technique [0002] The one-way valve hose is used in the vacuum booster system, in which the one-way valve plays the role of maintaining the vacuum inside the booster. The quality of the check valve has received more and more attention, and its installation direction on the hose is also particularly important. If the one-way valve cannot generate enough vacuum inside the booster, the boosting effect will be poor or even impossible when the engine reaches high-speed rotation. At present, the common method for positive pressure opening and negative pressure leakage detection of the check valve hose is: take the hose equipped with the check valve, the worker blows the positive pressure opening end of the hose with his mouth, and puts h...

AI Technical Summary

Problems solved by technology

[0003] This detection method is time-consuming and labor-intensive. Due to human differences, the input air pressure is unstable and the detection process is poor in operability. Moreover, workers cannot monitor whether the test results are correct or not, and the accuracy of the test results is difficult to guarantee.

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