Linkage joint for large-diameter hydraulic pipe and small-diameter hydraulic pipe

Abstract

A linkage joint for a large-diameter hydraulic pipe and a small-diameter hydraulic pipe comprises the first hydraulic pipe, the second hydraulic pipe and a pipe joint body used for connecting the first hydraulic pipe with the second hydraulic pipe. The linkage joint is characterized in that the pipe joint body comprises an annular fastening ring and a connecting piece; a first thread and a second thread which are used for linkage and clamping are formed on the outer circular face of the fastening ring and the inner circular face of the connecting piece correspondingly; the first hydraulic pipe is installed in the connecting piece in a sleeved mode; the second hydraulic pipe is tightly clamped in the inner ring of the fastening ring; the fastening ring is embedded in the connecting piece through clamping of the first thread and the second thread; a plurality of openings used for installing positioning pins are formed in the position where the connecting piece and the fastening ring are clamped. By the adoption of the design, the large-diameter hydraulic pipe and the small-diameter hydraulic pipe can be well linked; in addition, installation is convenient, the service life is long, the hidden danger of leakage is avoided, and normal production can be carried out for a long time.

Description

technical field [0001] The invention relates to the technical field of hydraulic equipment, in particular to a large and small hydraulic pipe connecting joint. Background technique [0002] At present, in the assembly of various hydraulic systems, it is necessary to make the hydraulic pipelines have different changes in length, direction and size. Therefore, multiple hydraulic pipes are often connected to form a delivery pipeline. However, the contact between two adjacent hydraulic pipes There will be seams in the area and there is a risk of leakage. The existing connecting joints are unreasonably designed and the structure is too simple. The stainless steel joints commonly used are easy to loosen under high temperature, high pressure, strong vibration and other environments, and cannot form a good fixation and penetration of two adjacent hydraulic joints, and the sealing effect is poor. Poor, the service life is too short, and the faults caused by the overall operating equ...

AI Technical Summary

Problems solved by technology

[0002] At present, in the assembly of various hydraulic systems, it is necessary to make the hydraulic pipelines have different changes in length, direction and size. Therefore, multiple hydraulic pipes are often connected to form a delivery pipeline. However, the contact between two adjacent hydraulic pipes There will be seams in the area, and there is a risk of leakage

The existing connecting joints are unreasonably designed and the structure is too simple. The stainless steel joints commonly used are easy to loosen under high temperature, high pressure, strong vibration and other environments, and cannot form a good fixation and penetration of two adjacent hydraulic joints. The sealing effect is poor. Poor, the service life is too short, and the faults caused by the overall operating equipment are frequent, which seriously affects the development of normal production

Moreover, for the connection of large-diameter hydraulic pipes and small-diameter hydraulic pipes, there is even a lack of special connecting pipe joints. In the process of fault maintenance, it is more difficult to find matching joints. Therefore, the matching accuracy between the two hydraulic pipe joints Poor, there are more potential safety hazards of leakage in later use

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