Push-pull folding door leading sheave device

Abstract

The invention discloses a push-pull folding door leading sheave device. A device body comprises a sheave shaft, a sheave portion installed on an upper sliding sectional material and a hinge portion for being connected with a folding fan, and the sheave portion comprises a connecting nut and a light spring washer which are installed on a sheave body; the hinge portion comprises a lower bearing hinge and a hexagon bolt, a square nut, a supporting shaft, a supporting piece and a cross recess sunk screw which are installed on the lower bearing hinge and fixed to an upper adjusting plate; one end of the sheave shaft is installed on the sheave body, and the other end is fixed to the upper adjusting plate. Door leaves can slide more easily and smoothly under large wind pressure; cooperation of the sheave and a sheave base adopts a simple supporting beam structure, heavier door and window sashes can be borne, and no deformation is caused. The hinge and the fan sectional material are in hook type fit, the weight of the large door leaves can be borne, during rolling friction of the sheave, wear resistance is better, and more loads can be borne; the structural design is reasonable, and installation and usage are convenient; the push-pull folding fan opening and closing force is small, materials are accurately selected, the service life is long, and the design is more user-friendly.

Description

Technical field [0001] The invention belongs to the technical field of building accessories and relates to a sliding and folding door guide pulley device. Background technique [0002] Folding door is a term for furniture, which is mainly used for partition purposes in workshops, shopping malls, office buildings, exhibition halls, home decoration and other places, screens, and both inner and outer doors can be installed and used. It can effectively function as temperature insulation, dust prevention, noise reduction, sound insulation, and shielding. Folding doors are mainly composed of door frames, door leaves, transmission parts, rotating arm parts, transmission rods, and orientation devices. Can be installed indoors and outdoors. Each door has four door leaves, two side door leaves and two middle door leaves. The frame on one side of the side door leaf is connected with the middle door leaf by a hinge, and the upper and lower ends of the door stile on the other side of the s...

AI Technical Summary

Problems solved by technology

The hardware used for folding doors is divided into upper load-bearing and lower load-bearing, each has its own advantages and disadvantages, but in terms of practicability and durability, the existing folding door hardware still needs to be greatly improved

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