Connector hard sealing structure for corrugated stainless steel hose

Abstract

The invention discloses a connector hard sealing structure for a corrugated stainless steel hose. The connector hard sealing structure comprises the corrugated hose, a nut and an externally threaded connector. The corrugated hose and the externally threaded connector penetrate into the nut from the two ends of the nut respectively and are connected through the nut. The connector hard sealing structure further comprises a split type clamping ring capable of stopping the nut from being disengaged, the clamping ring is arranged on the corrugated neck portion at the end of the corrugated hose which penetrates into the nut, and a ring cavity of the clamping ring is a cone. A pipe opening corrugated ring, placed in the ring cavity of the clamping ring, of the corrugated hose is a conical ring which is clamped on the conical face of the ring cavity of the clamping ring in a corrugation shaping mode. A metal ring is inlaid on the end conical face of the externally threaded connector with the nut and the corrugated hose screwed therein, and the end conical face of the externally threaded connector is matched with the conical ring. The connector hard sealing structure for the corrugated stainless steel hose is simple in structure, convenient to manufacture, rapid to dismount and mount, firm and reliable, capable of replacing an original rubber pad sealing structural mode, capable of achieving efficient sealing, high in practicability, low in material cost, small and exquisite in connector size, compact and attractive in appearance, high in superior product rate, long in service life and particularly suitable for rapidly connecting small-caliber metal hoses.

Description

technical field [0001] The invention relates to an end face sealing joint for connecting a stainless steel corrugated hose to a pipe fitting, in particular to a hard sealing structure of a stainless steel corrugated hose joint, which belongs to the technical field of conveying pipelines. Background technique [0002] As sensitive components, shock absorbing components, compensating components, sealing components, valve components and pipeline connectors, metal bellows are widely used in automatic control and measuring instruments, vacuum technology, machinery industry, electric power industry, transportation and atomic energy industry and other fields . [0003] The stainless steel corrugated hose is installed in the pipeline system as a flexible pressure-resistant pipe fitting to compensate for the mutual displacement of the connecting ends of the pipeline or machine or equipment, absorb vibration energy, and can play the role of vibration reduction and noise reduction. It ...

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Problems solved by technology

[0005] For the application field of transportation pipelines, the connection and sealing performance of stainless steel corrugated hoses and other pipe fittings is strictly required, so the processing and equipment precision of the connection joints must also be very high, otherwise there will be safety hazards of pipeline substance leakage during actual use

However, there are various joint structures on the market, but the quality varies greatly. The general joints adopt the structure of end rubber gasket seal. When used in high temperature environment, due to the phenomenon of aging, the sealing performance is poor. Not very well guaranteed, and the service life is greatly limited

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