Manual operation locking device, grounding device and manual operation locking control method

By designing a manual operation locking device in the rail transit grounding device, the engaging connection between the locking wheel and the locking member is used to limit the steering of the locking wheel, the problem of manual operation and misoperation risk when the grounding device loses power is solved, the operation safety is improved and the debugging and maintenance process is simplified.

CN119725002APending Publication Date: 2025-03-28ZHUHAI UNITECH POWER TECHNOLOGY CO LTD
0 Cites 0 Cited by

Patent Information

Application Number
CN202411923275.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-25
Publication Date
2025-03-28

AI Technical Summary

Technical Problem

When the grounding device of the rail transit contact network fails to power, there is a risk of misoperation when the manual operation of the switch-closing operation, which may lead to live grounding of the contact network and reduce operation safety.

Method used

A manual operation locking device is designed, including a lock body, a mechanical unlocking module and an electronic unlocking module. The steering of the locking wheel is restricted through the meshing connection between the locking wheel and the locking member, and the locking wheel is moved in one direction when the power is lost, allowing only the opening operation; in the electric unlocking module, the locking wheel is moved in two directions through the electronic unlocking module, allowing the opening and closing operation.

Benefits of technology

It effectively avoids the contact grid being grounded with live grounding caused by the grounding knife switch when the grounding device loses power, improves operational safety, and facilitates debugging and maintenance operations in an electric state.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The invention discloses a manual operation locking device, a grounding device and a manual operation locking control method, the locking device comprises a lock body, a mechanical unlocking module and an electronic unlocking module, a locking piece can be in meshed connection with a locking wheel to limit the steering of the locking wheel, and under the state that the locking piece is in meshed connection with the locking wheel, the locking wheel moves unidirectionally to lock the locking wheel. At the locking position, the locking piece is in meshed connection with the locking wheel so as to lock the locking wheel; at the unlocking position, the locking piece is separated from the locking wheel to unlock the locking wheel, the grounding device has a power-off state and a power-on state, and in the power-off state, the locking piece is in meshed connection with the locking wheel to limit the steering of the locking wheel, so that the locking wheel moves unidirectionally; and in a power-on state, the locking piece is separated from the locking wheel, so that the locking wheel moves bidirectionally. According to the technical scheme, the structure is simple, operation is easy, electrified grounding of the contact network caused by false closing of the grounding knife switch when the grounding device loses power can be avoided, and the operation safety can be improved.
Need to check novelty before this filing date? Find Prior Art