Multimeter calibration device
By using adjustable-spacing clamping components and densely packed pin-type shifting components, the adaptability and circuit reliability issues of existing multimeter calibration devices are solved, enabling efficient and accurate calibration of different models of multimeters.
CN224287119UActive Publication Date: 2026-05-26CHINA RAILWAY BEIJING BUREAU GRP CO LTD BEIJING INST OF SCI & TECH
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Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA RAILWAY BEIJING BUREAU GRP CO LTD BEIJING INST OF SCI & TECH
- Filing Date
- 2025-05-22
- Publication Date
- 2026-05-26
AI Technical Summary
Technical Problem
The existing multimeter calibration device's fixture cannot accommodate multimeters of different models and sizes, leading to positioning deviations and identification errors. Furthermore, the robotic arm's circuit layout is complex and prone to damage.
Method used
It adopts an adjustable-spacing clamping assembly and a dense pin-type shifting assembly. The clamping assembly includes a positioning part and an adjustable-spacing clamping part. The shifting assembly covers the dial shape with an elastic part to avoid wire tangling and wear.
Benefits of technology
It enables efficient and accurate calibration of different models of multimeters, reduces maintenance costs, and improves system reliability and versatility.
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Smart Images
Figure CN224287119U_ABST
Abstract
This application provides a multimeter calibration device, including a clamping assembly and a shifting assembly. The clamping assembly includes positioning portions and clamping portions spaced apart along a first direction. The positioning portions are adjustable in distance from the clamping portions along the first direction. The clamping portions have at least two output portions spaced apart along a second direction, and the distance between adjacent output portions is adjustable in the second direction to clamp multimeters of different sizes in the second direction. The shifting assembly includes a main body and pressing portions disposed on the main body via elastic portions. Multiple pressing portions are spaced apart, and the multiple pressing portions can cover the dial of the multimeter. When the pressing portions are driven to abut against the dial, the multiple pressing portions adapt to the shape of the dial under the action of the elastic portions. The multimeter calibration device of this application is a highly automated and adaptable multimeter calibration device, compatible with various models of digital multimeters and digital clamp meters, achieving efficient and accurate calibration operations.
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