Sleeve type indication rod for electric hydraulic switch machine

Abstract

The invention provides a sleeve type indication rod for an electric hydraulic switch machine, which comprises an outer indication rod and an inner indication rod. The outer indication rod and the inner indication rod are sleeved together, the outer indication rod at one end of the indication rod is provided with a notch to allow the end of the inner indication rod to be exposed, and a connecting structure is arranged at the end of the inner indication rod and the end of the outer indication rod at the end of the indication rod. The sleeve type indication rod for the electric hydraulic switch machine is easier to be structurally sealed with a box, strength and rigidity of the indication rod can be improved, and the sleeve type indication rod is more reasonable in structure. In addition, by means of the notch structure of the sleeve type indication rod and a junction bend matched with the notch structure, the indication rod can be locked more reliably to guarantee inserting and withdrawing of the moving junction turn to be more reliable.

Description

technical field [0001] The invention relates to an electrohydraulic switch machine, in particular to a sleeve-type indicating rod for the electrohydraulic switch machine. Background technique [0002] The electro-hydraulic switch machine is a special equipment for centralized control of switching switches in railways, underground railways, and urban rail transit stations. It can convert and lock the point rail or center rail of the switch, and at the same time give the position indication of the corresponding point rail. [0003] After the turnout is converted, the position of the turnout is transmitted to the switch machine by the indicating rod connected to the switch rail or the core rail. Constitutes the conditions given by the switch machine. [0004] The turnout has two different positions. Inside the switch machine, there are two different contact groups. Correspondingly, two indicating rods are used to cooperate with the two contact groups. [0005] The display me...

AI Technical Summary

Problems solved by technology

A square shape means that the rod extends out of the case, two pieces means that there is a gap between the rods, and a square shape means that it is difficult to seal between the rods and between the main rod and the auxiliary rod, so the sealing of the switch machine case is poor

At the same time, when the indicating rod is stretched out, the two indicating rods are respectively connected by the indicating rod joint with bolts and long holes. This kind of connection structure between the main rod and the auxiliary rod has the problem of looseness, and the strength and rigidity of the indicating rod are relatively low, which is easy to fracture

In addition, the existing point machine uses the inspection column inserted to indicate the gap of the rod, and indirectly checks the position of the switch rail. There are many intermediate links in the drive of the inspection column, and the reliability is poor.

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