Valve core service life detection device and method

Abstract

A valve core service life detection device and method are provided. The detection device comprises a sample fixing plate 2 and a telescopic device, wherein the telescopic device is fixedly connected with a punching plate 3; the sample fixing plate 2 is provided with at least one hole 7 to be connected to a valve core 8; the telescopic device is connected with a power device; the power device moves the telescopic device up and down and brings the punching plate 3 into contact with the valve core 8; the sample fixing plate 2 is provided with an intake valve 6; the intake valve 6 is connected with an intake valve control device; the intake valve control device inflates the sample fixing plate 2; and a pressure test device is disposed in the sample fixing plate 2. According to the sealing principle and structure of the valve core 8, the valve core 8 is disposed on the sample fixing plate 2 and the sample fixing plate 2 is inflatable. When the valve core 8 is repeatedly opened and closed, whether the valve core 8 has failed is determined based on a pressure change of the pressure test device. Thus, the service life of the valve core 8 is automatically detected.

Description

technical field [0001] The invention belongs to the field of valve cores, and mainly relates to a valve core life detection device and method. [0002] technical background [0003] The valve core is a cylinder with a hollow upper end and a solid lower end. When it is closed, it can prevent the internal and external air circulation. When it is open, the internal and external air can circulate. It is applied to the stop valve of the air conditioner, which is convenient for installation and maintenance. Extraction and filling of refrigerant. During the working process of the valve core, the internal compression spring has deformation and other failures after long-term use, resulting in poor sealing of the valve core and abnormal leakage of refrigerant. Therefore, there is an urgent need to make a valve core life testing tool, which repeatedly opens and closes the valve core to test the service life of the valve core. Contents of the invention [0004] The present invention ...

AI Technical Summary

Problems solved by technology

During the working process of the valve core, the internal compression spring has deformation and other failures after long-term use, resulting in poor sealing of the valve core and abnormal leakage of refrigerant. , so it is urgent to make a valve core life test tool, which repeatedly opens and closes the valve core to test the service life of the valve core

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