Inflation clamp with dual adjustment for refrigerator and refrigerator inflation method

Abstract

The invention provides an inflation clamp with dual adjustment for a refrigerator and a refrigerator inflation method. A first adjusting mechanism and a second adjusting mechanism are arranged in the middle and at the top end of an inflation valve rod correspondingly. The first adjusting mechanism in the middle of the inflation valve rod is an auxiliary adjusting mechanism and can finely adjust axial movement of the inflation valve rod, and the extending length of an internal hexagonal wrench at the lower end of the inflation valve rod can be slowly adjusted through the first adjusting mechanism so as to meet the depth requirements of inflation connectors of different refrigerators. The second adjusting mechanism at the top of the inflation valve rod is a main adjusting mechanism, axial movement of the inflation valve rod can be rapidly and greatly adjusted, and the assembling efficiency is improved. According to the inflation clamp with dual adjustment for the refrigerator and the refrigerator inflation method, the structure of an existing inflation clamp is slightly changed, only threads are additionally arranged in the middle of the inflation valve rod, the second adjusting mechanism is additionally arranged, and the transformation cost is reduced; and after the second adjusting mechanism is independently detached, the inflation clamp can be used as a traditional inflation clamp.

Description

technical field [0001] The invention relates to a refrigerator, in particular to an inflatable fixture for a refrigerator with double regulation and an inflation method for the refrigerator. Background technique [0002] The free-piston Stirling refrigerator, hereinafter referred to as "refrigerator", is an important cold source of the Stirling low-temperature refrigerator, which mainly provides the cooling capacity required for the working process of the low-temperature refrigerator. In order to maintain the normal operation of the refrigerator, it is necessary to fill a certain amount of high-pressure gas into the tightly sealed refrigerator before the refrigerator works. If the high-pressure gas cylinder is used for filling, its repeatability cannot be guaranteed, and it is not conducive to maintaining Due to the good sealing of the refrigerator itself, an inflation fixture coupled with the gas charging port of the refrigerator can be used to make the inflation operation ...

AI Technical Summary

Problems solved by technology

[0004] In the prior art of the inflatable fixture, due to the fixed processing length of the hexagon wrench at the bottom, in order to adapt to the depth requirements of different hexagon socket screws at the air inlet of the refrigerator, it is generally necessary to press the second rotating part to compress the inner column spring of the fixture to adjust it during use. The extended length makes it inconvenient to operate, and the spring is prone to deformation after repeated use, resulting in the scrapping of the fixture

In addition, the lower end inflation valve seat and the bottom threaded joint are usually manufactured in an integrated manner, and the thread size is fixed, so it cannot be used to match the refrigerant charging interface with different thread sizes, and because the wall thickness of the bottom of the threaded joint is thin, it is a thin-walled part. Therefore, when it is used repeatedly, it may be broken due to the combined action of other factors such as the extrusion of the compression spring and the thread seizure of the threaded joint, which will lead to the scrapping of the entire set of fixtures.

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