Switch box with locking device

By designing a switch box with a locking device, and utilizing the cooperation of a slider and an elastic element, the safety hazards of operating the rotary switch in the energized state are solved, achieving safe locking of the rotary switch and ensuring operational reliability and safety.

CN224554210UActive Publication Date: 2026-07-24KEDU ELECTRIC CO LTD +1
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Patent Information

Application Number
CN202521843611.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-27
Publication Date
2026-07-24
Estimated Expiration
2035-08-27

AI Technical Summary

Technical Problem

In the existing technology, rotary switches are easily operated when energized, posing a safety hazard and failing to effectively prevent operators from performing live operations.

Method used

A switch box with a locking device was designed. Through the cooperation of a slider, an elastic element and a knob, the knob can be locked and unlocked in different states, ensuring that the cover cannot be opened or the knob can be turned when the rotary switch is closed.

Benefits of technology

It prevents the cover from opening and the knob from turning when the rotary switch is closed, thus improving operational safety. It has a simple structure, few parts, and is easy to assemble, ensuring operational reliability.

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Abstract

The utility model discloses a switch box with a locking device. The switch box comprises a bottom shell; the upper cover and the bottom shell are matched to form a containing cavity, and a through hole is formed in the side wall of the containing cavity; the side, facing the bottom shell, of the upper cover is provided with an abutting face and a through groove. The rotary switch is accommodated in the accommodating cavity; the knob is matched with the knob switch; the knob is provided with a locking hole and a limiting block; the sliding block is provided with a locking part; the elastic piece is contained in the containing cavity and provides elastic force for the sliding block to move towards the upper cover. In a first state, the upper cover is separated from the bottom shell, and the locking part is locked and matched with the locking hole; in the second state, the upper cover and the bottom shell are spliced, the abutting face drives the sliding block to move towards the bottom shell, and the locking part and the locking hole are unlocked; in the third state, the knob rotates, and the limiting block rotates into the through groove to be locked; by the adoption of the structure, the protective locking effect is achieved through cooperation of a plurality of structures, the number of overall parts is small, the structure is simple, assembling is convenient, operation and locking are reliable, and personnel safety is guaranteed.
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