Small-size variable-speed governor for door

By designing the base and transmission rod gear structure, the problem of the large size of the worm gear drive is solved, achieving miniaturization and power amplification, making it suitable for the installation needs of electric doors and windows.

CN223839693UActive Publication Date: 2026-01-27FOSHAN NANHAI DISTRICT SYMBOL HARDWARE DOORS & WINDOWS FACTORY
0 Cites 0 Cited by

Patent Information

Application Number
CN202422775504.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-14
Publication Date
2026-01-27
Estimated Expiration
2034-11-14

AI Technical Summary

Technical Problem

The existing worm gear drive design for electric doors and windows results in a large drive unit size, which affects installation and consumer experience.

Method used

It adopts a base, transmission rod and gear structure design, and realizes the conversion of lateral power into longitudinal power through oblique thread transmission and synchronous rotation connection. Combined with the difference in the number of gear teeth, it realizes speed change and power increase, reduces the size of the transmission device and increases the torque.

Benefits of technology

It effectively reduces the size of the transmission unit, making installation easier, while providing sufficient transmission power to meet the needs of heavy-duty doors and windows.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The utility model relates to the technical field of door and window accessory transmission, in particular to a small-size variable-speed governor for a door, which comprises a base, one end of the base is fixedly connected with a motor, a first transmission rod is designed at one end of the base close to the motor, and a second transmission rod is designed in the middle of the base. A third transmission rod is designed at the position, close to the right side, of the base, an output rod extends out of the middle of the motor, and a transmission wheel corresponding to the output rod is designed on the first transmission rod. If a large door body is needed, the large door body is not well applicable and the like.
Need to check novelty before this filing date? Find Prior Art