Slide wheel device for plastic sliding doors and windows

Abstract

The invention discloses a slide wheel device for plastic sliding doors and windows. The slide wheel device comprises a slide wheel and a guide slot matched with the slide wheel; a longitudinal raised slide rail is arranged in the middle of the upper portion of a slot body; the upper surface of the slide rail is in the shape of semi-circular arc; a spherical slot matched with the upper surface of the raised slide rail is formed in the bottom of the slide wheel; the slide wheel strides across the slide rail; a group of circular slots with variable diameters is symmetrically formed in each of upper surfaces at the two ends, in the length direction, of the slide rail; each group of circular slots is arranged from big to small according to the size of the diameters; and a rubber mat which is matched with each circular slot in diameter and height is arranged in each circular slot. According to the slide wheel device disclosed by the invention, an existing guide slot is creatively designed, and the slide rail with circular-arc surface and the spherical slot are designed, so that the contact area between the slide rail and the spherical slot is increased; the rubber mats with diameters which change regularly are arranged on the upper surfaces at the two ends of the slide rail; and the slide wheel is buffered and decelerated by virtue of progressively increasing friction force, so that collision force generated when window sashes are in contact with window frames is reduced, and service lives of the window frames and the window sashes are prolonged.

Description

technical field [0001] The invention relates to the field of doors and windows, in particular to a pulley device for plastic sliding doors and windows. Background technique [0002] Sliding windows have the advantages of not occupying indoor space, beautiful appearance, economical price, good sealing performance, and flexible opening. Coupled with large pieces of glass, it not only increases indoor lighting, but also improves the overall shape of the building. The existing push-pull windows realize the push-pull function of the window frame through the parallel sliding of the pulley on the guide groove, but the bottom surface of the existing guide groove is generally flat, which makes the contact area between the pulley and the bottom surface of the guide groove smaller. After pushing and pulling for many times, it is easy to produce wear marks in the guide groove, and it will also make the sliding window easy to shake due to imbalance. In addition, when opening and closin...

AI Technical Summary

Problems solved by technology

The existing push-pull windows realize the push-pull function of the window frame through the parallel sliding of the pulley on the guide groove, but the bottom surface of the existing guide groove is generally flat, which makes the contact area between the pulley and the bottom surface of the guide groove smaller. After many times of pushing and pulling, it is easy to produce wear marks in the guide groove, and the sliding window is easy to shake due to imbalance

In addition, when opening and closing the sliding window manually, it is easy to make the sliding window not decelerate or even accelerate when it translates in the guide groove under the action of great force. When it finally comes into contact with the window frame, a large impact force is generated, which affects the window frame. Frame and sash life

Images