Safety protection equipment and safety protection methods

By integrating clamping equipment, voltage divider equipment and control equipment on the grounding member, the reliable grounding and pressure state of the grounding member is detected and ensured, the problems of poor grounding and grounding protection of the traditional grounding member are solved, and efficient grounding protection and safety guarantee are achieved.

CN114336296BActive Publication Date: 2025-03-25SHUOHUANG RAILWAY DEV
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Patent Information

Application Number
CN202111646716.5
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2021-12-29
Publication Date
2025-03-25
Estimated Expiration
2041-12-29

AI Technical Summary

Technical Problem

The grounding method of traditional grounding parts has problems of rust and poor contact, and cannot be reliable grounding and cannot meet the needs of ensuring the safety of on-site equipment. At the same time, in the prior art, the power supply air switch for grounding protection and disconnecting the high-voltage switch are two independent safety measures, and there is no linkage between them, and the safety is poor.

Method used

Provided is a safety protection device, including grounding parts, housings, clamping devices, voltage dividers, detection devices and control devices. By detecting the position information of the grounding member and the applied pressure value, the control device connects the voltage divider into series into the control circuit of the high-voltage switch to ensure that the grounding member is reliable and prevents the high-voltage switch from closing incorrectly during misoperation.

Benefits of technology

Reliable grounding of the grounding member is achieved, preventing the high-voltage switch from being closed by mistake, avoiding instantaneous high-voltage and high current, and providing protection to the high-voltage wires in the area near the grounding point, meeting the needs of ensuring the safety of on-site equipment.

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Abstract

The present application relates to a safety protection device and a safety protection method, wherein the safety protection device comprises a grounding piece, a shell, a clamping device, a voltage dividing device, a first detection device, a second detection device and a control device; one end of the grounding piece is connected to an electric wire; the shell is grounded; the clamping part of the clamping device provided on the shell is used to clamp the grounding piece; the first detection device detects the position information of the grounding piece; the second detection device is provided on the clamping part, and is used to detect the pressure value applied by the grounding piece to the clamping device; the control device obtains the position information and the pressure value, and connects the voltage dividing device in series to the control circuit of the high-voltage switch according to the position information and the pressure value. The reliable grounding of the grounding piece is ensured, and even if the corresponding operator mistakenly presses the closing button on the control circuit of the high-voltage switch during the maintenance process, the high-voltage switch will not be mistakenly closed, and no instantaneous high voltage and large current will be generated, and the high-voltage wires in the area near the docking location play a protective role.
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