Secondary terminal electric isolation guard

By designing a secondary terminal electric isolation protection device, and utilizing an anti-accidental contact mechanism and strong magnet adsorption, the problem of poor terminal contact and safety hazards caused by the detachment of insulating tape was solved, achieving the effects of stable coverage and cost reduction.

CN119765084BActive Publication Date: 2026-04-07GUO WANG ZHE JIANG SHENG DIAN LI YOU XIAN GONG SI CI XI SHI GONG DIAN GONG SI +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-12-11
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

In existing technologies, when using insulating tape to seal secondary terminal blocks, the adhesive is prone to falling off, leading to poor terminal contact and safety hazards, and the cost of consumables is high.

Method used

Design a secondary terminal electric isolation protection device, which adopts an anti-accidental contact mechanism, strong magnetic adsorption, eccentric shaft design and locking mechanism. It achieves reliable coverage and fixation through a roller and shielding strip to prevent the tape from falling off. The tension of the shielding strip is adjusted by a drive mechanism.

Benefits of technology

This achieves a secure cover with the shielding strip, reduces material costs, avoids safety hazards caused by tape detachment, and ensures the safe and stable operation of the equipment.

✦ Generated by Eureka AI based on patent content.

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    Figure CN119765084B_ABST
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Abstract

This invention proposes a secondary terminal electrically isolated protective device, comprising two opposing anti-accidental contact mechanisms and a shielding strip connecting them. The base of the anti-accidental contact mechanism has a strong magnet at its bottom and internally houses a spool, an eccentric tensioning shaft, and a drive mechanism. One end of the shielding strip is fixed to the spool after wrapping around the tensioning shaft. Springs on both sides of the spool cause the shielding strip to wind in a first direction. The locking mechanism on the base includes a one-way separation shaft, a pivot shaft, and a pawl. The one-way separation shaft slides within the base and has a first connecting part facing the spool end, which matches a second connecting part of the spool and has a coupled handle. Pushing or pulling the handle can disengage the connecting part. The ratchet portion on the outer periphery of the one-way separation shaft engages with the pawl. In the first rotation direction, the pawl moves to a first position and disengages from the ratchet; in the second direction, the pawl engages to a second position. This provides a secondary terminal electrically isolated protective device that replaces adhesive, reducing material costs and offering a stable structure and convenient use.
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Citation Information

Patent Citations

  • Outdoor power distribution cabinet

    CN118712898A

  • Protective shielding cover tool for secondary equipment

    CN218732754U