A transmission bar for windows and doors

CN224379725UActive Publication Date: 2026-06-19LELING JIJIA HARDWARE PROD CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
LELING JIJIA HARDWARE PROD CO LTD
Filing Date
2025-07-23
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

The existing transmission strip and transmission box are an integral structure, which means that different transmission strips need to be installed for doors and windows of different sizes. This is complicated to manufacture, costly, and the toothed connection is prone to tooth breakage, making installation inconvenient and affecting the performance.

Method used

Design a separately designed transmission bar with a groove and cover plate, suitable for windows and doors of different sizes. It connects to the profile through embedded parts to achieve stable sliding and can be cut to the required length for installation.

Benefits of technology

It achieves versatility and stability of the drive bar, reduces production costs, facilitates installation and maintenance, is suitable for PVC and wooden windows and doors, and has good sliding smoothness.

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Abstract

This utility model belongs to the technical field of door and window transmission devices, and specifically relates to a transmission strip for windows and doors, including a transmission strip body and connecting ends at both ends. The transmission strip body has a sliding groove arranged along its length, allowing it to slide back and forth stably within the assembly groove of the profile. The transmission strip body has a cover plate. This utility model provides a transmission strip for windows and doors, which is designed separately to form a separate structural form, no longer integrated with the transmission box. It can be adapted to different usage scenarios. The appropriate length can be cut as needed to install all components into the groove. Then, the dimensions between the connection points are measured, and the transmission strip is cut, punched, and installed according to the measured dimensions. It has excellent applicability, is easy to handle, reduces production costs, and is easy to manufacture.
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