Pipeline connecting structure applicable to narrow spaces

Abstract

The invention belongs to a pipeline connecting structure applicable to narrow spaces. The pipeline connecting structure comprises a liquid guide pipe, a seal device, a pressure sleeve, a retaining washer and a nut. The seal device is disposed at joint surfaces of the liquid guide pipe and a pipeline to be connected. The pressure sleeve, the retaining washer and the nut are arranged at the end, connected with the pipeline to be connected, of the liquid guide pipe. The liquid guide pipe is provided with an external thread matching with the nut. Seal rings are arranged at joints of the pressure sleeve with the liquid guide pipe and the pipeline to be connected. The pipeline connecting structure can be used to connect hydraulic pipelines in an extremely narrow space and guarantees sealing of the hydraulic pipelines. The pipeline connecting structure has the advantages of simple structure, low cost, easiness to process, convenience to mount and the like. The pipeline connecting structure is applicable to narrow spaces and is also applicable to other conventional environments and conditions.

Description

[0001] Field [0002] The invention belongs to a connection structure of pipeline passages, especially suitable for the connection of hydraulic motor-pump group structures in narrow spaces, and the connection of related pipeline devices, and is also suitable for hydraulic motors, pumps, etc. in other machine tools or machinery. , The connection of the pneumatic pipeline. Background technique [0003] The patent of this invention is a divisional application based on the invention patent of "compact hydraulic motor pump set and its pipeline connection device", the original application number: 201010512258.1, the original application date: 2010.10.19. [0004] In modern machine tools or engineering mechanical devices, such as the special functional part of CNC gantry boring and milling machine - mechanical high torque CNC five-axis attachment milling head, due to the high spindle speed of this functional part, large cutting power and torque, the main function of this functional p...

AI Technical Summary

Problems solved by technology

Through the analysis of this structural principle, it can be known that the compression seal is used, so it can only seal the joint surface at one end of the pipeline. When the same sealing structure is used at both ends of the pipeline, it may be pulled apart. One end forms a situation that cannot be sealed, so the technical solution described in this patent is only suitable for the sealing of flexible pipelines, and is not suitable for the connection of rigid pipelines when it is required to seal both ends of the pipeline at the same time

[0006] In many practical applications, due to the design of functional parts of machinery or machine tools, the structure is often relatively compact, and the connection of various pipelines is realized in a narrow and limited space, and it is impossible to connect steel pipes or hoses through pipe joints.

Therefore, when it is necessary to connect rigid pipelines in a narrow space, the existing patented technology is obviously not satisfactory.

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