Double-track pulley module

CN224496160UActive Publication Date: 2026-07-14FOSHAN NANHAI OUBOKAI DOOR & WINDOW FITTINGS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
FOSHAN NANHAI OUBOKAI DOOR & WINDOW FITTINGS CO LTD
Filing Date
2025-06-30
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

The existing pulley module cannot adapt to the tilt of the load-bearing part, resulting in uneven force on the pulley, which affects its service life and load-bearing performance.

Method used

The design employs a combination of load-bearing guide components, adjusting drive components, and limiting components. Through the interaction of inclined surfaces and raised structures, the pulley is automatically adjusted, ensuring effective contact between the pulley and the load-bearing part.

Benefits of technology

This design enables the pulleys to adaptively adjust according to the tilt of the load-bearing part, ensuring that both pulleys are in contact with the load-bearing part, thereby improving the load-bearing capacity and service life, and reducing friction and noise.

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Abstract

The utility model relates to a push -and -pull door and window accessory technical field, specifically is a double track pulley module, through the cooperation design of bearing guide piece, adjusting drive component and spacing component, can according to the inclination condition of bearing portion self -adaptation height and position of pulley adjustment, ensure that both sides pulley keep contact with bearing portion simultaneously, thereby avoid the problem of uneven stress, in addition, through the interaction of slope and convex structure, can make bearing wheel assembly realize self -adaptation deflection, to cope with the situation of two sides bearing portion height inconsistency, ensure that both sides pulley can not contact with bearing, thereby improve the bearing effect and the service life of pulley.
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