Pipeline connecting structure

Abstract

The invention relates to the technical field of pipeline sealing, and discloses a pipeline connecting structure. The pipeline connecting structure comprises a pipeline piece, a matching piece, a conical surface piece, a pressing piece, a connecting flange and a locking piece, wherein a flaring portion is arranged at the end, facing the matching piece, of the pipeline piece, the conical surface piece is coaxially arranged on the matching piece and is matched with the flaring portion, the matching surface of the conical surface piece and the flaring portion is a conical surface, the pressing piece is arranged on the peripheral side of the flaring portion in a sleeving mode so as to press the flaring portion on the conical surface piece, and the connecting flange is arranged on the peripheral sides of the pipeline piece and the pressing piece in a sleeving mode and is connected with the matching piece through the locking piece. According to the pipeline connecting structure, the rigidity requirement of the flaring portion is reduced, then deviation generated in the machining and assembling process is made up, it is ensured that the matching surface of the conical surface piece and the flaring portion is in an ideal connection state, the sealing effect is good, and the machining and assembling requirements are low.

Description

technical field [0001] The invention relates to the technical field of pipeline sealing, in particular to a pipeline connection structure. Background technique [0002] During the operation of the equipment, it is often necessary to transmit liquids such as high-pressure servo oil and fuel oil, and a relatively rigid connection method is often used between two components. However, in actual use, due to factors such as machining accuracy and installation accuracy, this rigid connection method often makes it difficult for the sealing surface between the two components to achieve the expected sealing effect, and leakage often occurs, especially when the pressure inside the pipe is high. , or when the equipment is in a vibrating state, the leakage phenomenon is more frequent. In addition, for large mechanical equipment or equipment operating at high speed, it is not convenient to approach or shut down for maintenance. Contents of the invention [0003] Based on the above pro...

AI Technical Summary

Problems solved by technology

However, in actual use, due to factors such as machining accuracy and installation accuracy, this rigid connection method often makes it difficult for the sealing surface between the two components to achieve the expected sealing effect, and leakage often occurs, especially when the pressure inside the pipe is high. , or when the equipment is in a state of vibration, the leakage phenomenon is more frequent

In addition, for large mechanical equipment or high-speed operating equipment, it is not convenient to approach or shut down for maintenance

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