Contact system

US10286935B2 · kind B2 · utility

Assignee

• XI'AN NATIONAL RAILWAY EQUIPMENT RESEARCH OF SIGNAL & COMMUNICATION CO., LTD · CN

Inventors

• Hui Zhang · Hubei, CN
• Xiaogang Yang · Seattle, US
• Xiaoqi Wang · Bellevue, US
• Tielu Zhao · Tuji, CN
• Yuanchou Du · Tuji, CN
• Deping Li · Fujian, CN
• Shuzhen Hua · Tuji, CN

Key dates

• Filing date: Jan 28, 2016
• Grant date: May 14, 2019
• Expiry date: Jan 28, 2036

Classification

• Technology area (CPC E): Fixed Constructions
• CPC primary: E01B7/20
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A contact system employs a swing link (1) to drive set of movable contacts (5) to engage with a left or right set of contacts (24, 25) respectively on two sides thereof, so as to achieve indication of a separate or closure position. Particularly, a drive shaft (2) along with an operating plate (3) and a snap plate (4) on the drive shaft (2) are driven by the swing link (1) to change a motion trajectory of a roller (10) on a movable contact shaft (12), aided by action of a snap-action claw (11) and a tension spring (9), thereby achieving, quick action of set of movable contacts (5), and realizing a contact with or disconnection from set of fixed contacts (6) to achieve indication of the separation or in closure position. The system has a simple structure and a small size, responds quickly and accurately, and is cheap to manufacture, install, and maintain.