Magnetic railing ruler sensor for elevator and elevator

By using a roller to fix it on the mounting base in the elevator magnetic scale sensor and close to the stainless steel substrate surface of the magnetic scale, the existing magnetic scale sensors are solved by the problem of noise and wear caused by local friction, achieving a longer service life and higher accuracy.

CN120172213APending Publication Date: 2025-06-20SHANGHAI MITSUBISHI ELEVATOR CO LTD
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Patent Information

Application Number
CN202510468063.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-04-15
Publication Date
2025-06-20

AI Technical Summary

Technical Problem

Existing magnetic scale sensors are prone to noise caused by local friction during use, and due to flexibility and wear of magnetic materials, the sensor function may fail, resulting in a decrease in service life and accuracy.

Method used

A magnetic scale sensor for elevators is designed, which is fixed to the mount with a roller, close to the stainless steel substrate surface of the magnetic scale, rolls along the surface of the magnetic scale through the roller to reduce the noise generated by sliding friction, and limit the magnetic scale through the roller to avoid tilt and wear.

Benefits of technology

It effectively reduces noise during friction, ensures that the magnetic scale is fully tightened inside the sensor, and avoids wear of magnetic materials, thereby improving the service life and accuracy of the magnetic scale sensor.

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Abstract

The invention discloses a magnetic railing ruler sensor for an elevator. The magnetic railing ruler sensor comprises an outer shell, a mounting seat, a magnetic railing ruler, a roller fixing shaft, a plastic liner and a roller, the mounting seat is fixed at the end part of the outer shell, a square groove is formed in the middle of the outer shell, the magnetic railing ruler is inserted into the square groove, and the stainless steel substrate surface of the magnetic railing ruler faces the plastic liner; and the roller is sleeved on the roller fixing shaft in a penetrating manner, is mounted on the mounting seat, and is tightly attached to the stainless steel substrate surface of the magnetic railing ruler. Abrasion of the magnetic railing ruler can be avoided, the service life of the magnetic railing ruler is prolonged, and the accuracy of the magnetic railing ruler is improved.
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