Automobile fuel sealing expedite test device

Abstract

The invention relates to a device for testing the smoothness of an automobile fuel seal. The inner part of the cylinder body of the testing device is provided with a piston matching the inner wall of the cylinder body; one end of the rod body of a plug rod is fixedly connected with the piston, while the other end passes through the lower end cover of the cylinder body, and the end part is provided with a rod head; the rod body exposing at the outside of the cylinder body is provided with a seal component which is mutually sealed with a carbon cylinder month; a spring is arranged between the upper end cover of the cylinder body and the piston; the piston is moved downwards by the elastic force of the spring; a gas inlet pipe passes through the pipe hole of the upper end cover to be connected with a through hole arranged on the piston. In the technical proposal, the device is provided with the spring, therefore, when in smoothness test, the plug can be loosen timely by the resilience force of the spring, thus avoiding the situation that whether the operation is successful or not, the test is determined by the timeliness of the action of a person. Therefore, the invention has the advantages that the operation is convenient, the test result is precise, and the one-time percent of pass and the precision of the measure are improved.

Description

technical field [0001] The invention relates to a testing device for the unimpededness of the fuel oil seal of an automobile. Background technique [0002] At present, with the rapid development of the economy and the improvement of people's living standards, cars gradually enter the family and become a means of transportation, which makes the safety of cars particularly important. In our country, the sealing smoothness of automobile fuel system must be tested according to the standard of GB18352.2-2005 F7 production consistency inspection. In the sealing test, the plug needs to block the opening of the carbon tank. In the unblocking test, the plug must be loosened so that the carbon tank can be directly opened to the atmosphere. Now the plug is mostly used as a pneumatic sealing plug, which makes the After the sealing test, due to the influence of the gas in the cylinder, the plug is often not loosened in time, and must be pulled out manually in time, otherwise the unblock...

AI Technical Summary

Problems solved by technology

In the sealing test, the plug needs to block the opening of the carbon tank. In the unblocking test, the plug must be loosened so that the carbon tank can be directly opened to the atmosphere. Now the plug is mostly used as a pneumatic sealing plug, which makes the After the sealing test, due to the influence of the gas in the cylinder, the plug is often not loosened in time, and must be pulled out manually in time, otherwise the unblocking test will be regarded as unqualified

It can be seen that this structure needs to rely on the operation of employees to control the whole process, which is not only inconvenient but also the test results are not accurate enough

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