A connection elbow that can be fixedly installed

Abstract

The invention provides a connecting bent head capable of realizing fixed installation. A bent head through cavity (3) is arranged on a bent head main body (1), a seat lug (2) is fixedly connected onto the bent head main body (1), a through hole (4) is formed in the seat lug (2), and an included angle between center axial lines of two end surfaces of the bent head main body (1) is 110 degrees to 130 degrees. Compared with the prior art, the connecting bent head has the advantages that the connecting bent head and a bent head installing seat can be conveniently, directly and fixedly connected through the through hole formed in the seat lug via a connecting screw bolt, the defects of the traditional fixing mode of the connecting bent head and a connected pipeline assembly of the connecting bent head are overcome, and the impact resistance and collision resistance performance of the connecting bent head is improved, so the reliability after the connection between the connecting bent head and the pipeline assembly is ensured, the safety of a pipeline system is favorably protected, and the outstanding advantages of convenient fixation, reliable connection, simple structure and the like are realized.

Description

technical field [0001] The invention relates to a connecting elbow, in particular to a connecting elbow which can be fixedly installed. Background technique [0002] The connecting elbow used for the hose connection at the end of the rolling stock belongs to the key part of the air pipeline system. The connecting elbow in the prior art has the following disadvantages: first, the connecting elbow is a sweeping curve around a 135° bending curve. Due to the relatively large opening angle of the connecting elbow of 135° for the swept body of revolution, the pipeline connected to the connecting elbow is too bent due to the limitation of the pipeline layout space, such as the locomotive air pipe pipeline system, thereby affecting the safety of the pipeline system; second, the existing connecting elbow cannot be fixed during installation. If it needs to be fixed, it can only be fixed by fixing the steel pipe connected to it or the metal connector at the end of the hose. The pipe c...

AI Technical Summary

Problems solved by technology

[0002] The connecting elbow used for the hose connection at the end of the rolling stock belongs to the key part of the air pipeline system. The connecting elbow in the prior art has the following disadvantages: first, the connecting elbow is a sweeping curve around a 135° bending curve. Due to the relatively large opening angle of the connecting elbow of 135° for the swept body of revolution, the pipeline connected to the connecting elbow is too bent due to the limitation of the pipeline layout space, such as the locomotive air pipe pipeline system, thereby affecting the safety of the pipeline system; second, the existing connecting elbow cannot be fixed during installation

If it needs to be fixed, it can only be fixed by fixing the steel pipe connected to it or the metal connector at the end of the hose. The pipe connection and fixing effect are very bad

In case of accidental collision, especially when touching the steel pipe connected to the connecting elbow or the metal connector at the end of the hose, it is very easy to damage the elbow and the steel pipe connected to it or the metal connector at the end of the hose, seriously affecting ensure the normal operation of the air piping system

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