Cold bridge device of sealing penetration piece for low-temperature and low-pressure experimental equipment

Abstract

The utility model discloses a cold bridge device of a sealing penetration piece for low-temperature and low-pressure experimental equipment, which comprises a first stainless steel pipe connected with a low-temperature and low-pressure laboratory, a flange arranged at the right end of the first stainless steel pipe, another stainless steel pipe, and an upper cover flange and a lower cover flange which are connected with the other stainless steel pipe, the screw rod penetrates through the upper cover flange, the lower cover flange and the flange, the nut is used for fastening the screw rod, the gasket is arranged between the nut and the flange, the sealing gasket is arranged between the flange and the lower cover flange, and the pipeline penetrates through the other stainless steel pipe and the first stainless steel pipe into the low-temperature and low-pressure laboratory. Silicone rubber is filled between the pipeline and the other stainless steel pipe; the first stainless steel pipe and the other stainless steel pipe are tightly connected through the screw and the nut. According to the cold bridge device disclosed by the utility model, the sealing plug is formed by silicon rubber, the structure is simple, the use is convenient, the sealing is reliable, and the purpose and the function of a sealing penetration piece for low-temperature and low-pressure experimental equipment are optimized.

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