An adjustable intelligent building access control device

CN224287556UActive Publication Date: 2026-05-26SHAANXI QICAI ELECTRONIC TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHAANXI QICAI ELECTRONIC TECHNOLOGY CO LTD
Filing Date
2025-08-25
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing building access control devices suffer from poor installation adaptability, high maintenance costs, and are prone to loosening and jamming due to their non-adjustable roller door length and fixed transmission structure. They are also complex to operate and difficult to quickly adapt to different installation scenarios.

Method used

It adopts a telescopic rod structure and a motor-driven gear transmission mechanism, combined with the cooperation of a limit plate and a spring, to achieve flexible adaptation of the roller door length and automatic opening and closing, ensuring that the roller door is taut during the opening and closing process.

Benefits of technology

It achieves flexible adaptation of roller door length, improves the versatility and stability of the device, simplifies the operation process, reduces maintenance costs, and ensures the smooth operation and stability of the access control system.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224287556U_ABST
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Abstract

This utility model relates to the field of building access control equipment technology. It proposes an adjustable intelligent building access control device, addressing the problems of existing access control devices having fixed roller door lengths, inability to adapt to different spacing of the access control body, easy loosening of the roller door, and complex operation. The device features symmetrical fixed plates inside the access control body, with an adjusting shaft movably installed between the two plates. The roller door is mounted on the adjusting shaft, with one end connected to the adjusting shaft and the other end connected to a clamping rod. A motor is mounted on the upper fixed plate, with its output connected to a first gear. A second gear meshing with the first gear is located at the top of the rotating shaft. Limiting plates are fixed to the adjusting shaft at both ends of the roller door, with springs fitted between the limiting plates and the fixed plates and onto the adjusting shaft. A roller is movably fitted in the middle of the rotating shaft, with limiting blocks fixed to the rotating shaft on both sides of the roller. The limiting blocks are connected to telescopic rods, with the other end of the telescopic rods connected to a clamping rod. The telescopic rods adjust for different spacings, while the springs ensure the roller door remains taut, making operation convenient and improving the device's versatility and stability.
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