An airtight plug device

Abstract

The invention relates to an airtight bolt device, which is used for detecting air leakage of a seal device. The airtight bolt device includes a seal plug, a pressing plate, and a pressing plate operation mechanism; the pressing plate operation mechanism is used for operating the pressing plate to move so as to allow the pressing plate to possess a locking state and an unlocking state, and when the pressing plate is in the locking state, the pressing plate is pressed against the seal plug; and when the pressing plate is in the unlocking state, the pressing plate is separated from the seal plug. Comparing with the prior art, the airtight bolt device does not interfere with an air inlet pipe, the airtight structure will not generate bubble, and then a detector will not be interfered in a leakage detection process, and the detector can accurately determine welding leakage between the air inlet pipe and a cylinder of the seal device; and the air inlet pipe does not have to be lengthened, a raised ring can be avoided, and the cost can be reduced.

Description

technical field [0001] The invention relates to an airtight plug device for checking the gas leakage of a sealing device, in particular to an airtight plug device for compressor leak detection. Background technique [0002] At present, a kind of airtight plug needs to be used in compressor leak detection, such as figure 1 As shown, the air-tight plug 2' is used to seal the air inlet of the air inlet pipe 11' (intake copper pipe) of the reservoir 10', and then the inspector detects the main body of the air inlet pipe 11' and the liquid reservoir 10' (Cylinder) Whether there is welding leakage between. [0003] However, the structure of the airtight plug 2' used in the prior art is relatively complicated, and the cost of use is relatively high; in addition, after using this airtight plug 2', in order to cooperate with the structure of the airtight plug 2', on the one hand, the advance of the liquid reservoir 10' The length of the air copper pipe 11' is longer than the length...

AI Technical Summary

Problems solved by technology

[0003] However, the structure of the airtight plug 2' used in the prior art is relatively complicated, and the cost of use is relatively high; in addition, after using this airtight plug 2', in order to cooperate with the structure of the airtight plug 2', on the one hand, the advance of the liquid reservoir 10' The length of the air copper pipe 11' is longer than the length required for actual installation, and there is some waste in the use of materials; on the other hand, it is also necessary to add a raised ring near the mouth of the air intake copper pipe 11', Realize the clamping connection between the airtight plug 2' and the intake copper pipe 11'; in this way, it is necessary to add a processing procedure in the production process of the copper pipe, which increases the manufacturing cost

In addition to the cost aspect, there are still some defects in the structure of the airtight plug 2' in the prior art. For example, some air bubbles will appear inside the airtight plug 2' during the leak detection process, which interferes with the inspection of the air intake copper pipe 11' and the airtight plug 2'. Determination of Welding Leakage Between Cylinders of Liquid Storage Tank 10'

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