Design of an instrument for measuring the gap of elevator door leaf in force exertion state

Shuangchang Feng; Wenhao Shen; Jie Chen; Chen Wang

doi:10.1117/12.2652586

10 November 2022 Design of an instrument for measuring the gap of elevator door leaf in force exertion state

Shuangchang Feng, Wenhao Shen, Jie Chen, Chen Wang

Proceedings Volume 12331, International Conference on Mechanisms and Robotics (ICMAR 2022); 123311H (2022) https://doi.org/10.1117/12.2652586
Event: International Conference on Mechanisms and Robotics (ICMAR 2022), 2022, Zhuhai, China

Abstract

The gap of elevator horizontal sliding door is an important safety index of elevator. When the horizontal sliding door is applied on the most unfavorable point with an external force of 150N in the opening direction, the door gap shall not exceed 30mm. However, the manual measurement has the defect about low efficiency and accuracy. This article designs an instrument for measuring the gap of elevator door leaf in force exertion state. The instrument contains support plates, oil cylinders, scale, drive arm, handle, plunger pumps, ejector rod, positioning hole and spring. While using, the inspector inserts the instrument into the gap of the horizontal sliding door and swings the driving arm. When the second support plate is not aligned with the scale and the ejector rod slides out of the positioning hole, it indicates that the external force of 150N makes the door gap less than 30mm. The operation of the instrument is Optimized, so that single inspector can easily complete the measurement and identify the results directly. The instrument is also convenient to reset after measurement and easy to carry. The instrument has the feature of high accuracy, simple operation and well portability. The horizontal sliding door also can be avoid damaging during the measurement process.

Citation Download Citation

Shuangchang Feng, Wenhao Shen, Jie Chen, and Chen Wang "Design of an instrument for measuring the gap of elevator door leaf in force exertion state", Proc. SPIE 12331, International Conference on Mechanisms and Robotics (ICMAR 2022), 123311H (10 November 2022); https://doi.org/10.1117/12.2652586

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