Pulley device and sliding door and window with the pulley device

Abstract

The invention discloses a pulley device. The pulley device comprises a first pressure cylinder, an adjusting module and a pulley module; the first pressure cylinder includes a first closing cylinder body, a driving piston and a first adjusting piston; one end of the driving piston is slidingly accommodated in the first closing cylinder body, and divides the first closing cylinder body into a first cavity filled with a fluid medium and a second cavity not filled with the fluid medium; the adjusting module is connected with the other end, positioned out of the first closing cylinder body, of the driving piston; one end of the first adjusting piston is slidingly accommodated in the first cavity; and the pulley module is connected with the other end, positioned out of the first closing cylinder body, of the first adjusting piston. In the pulley device and a sliding door / window, the pulley module is connected with the first adjusting piston arranged in the first cavity; and the adjusting module adjusts the position of the driving piston corresponding to the first closing cylinder body, so that the first adjusting piston in the first cavity drives the pulley module to move corresponding to the first closing cylinder body under the effect of the fluid medium to adjust the height of the pulley module.

Description

Technical field [0001] The invention relates to a door and window spare part, in particular to a pulley device and a sliding door and window with the pulley device. Background technique [0002] In the design of sliding doors and windows, in order to increase the lighting area and aesthetics, the size of the door leaf is usually increased, which causes the load-bearing performance of the pulley to become larger. Secondly, in the actual installation and construction, the pulleys and the profile at the left and right ends of the profile are rigidly connected. It is difficult to achieve synchronous adjustment during the adjustment process, and it is easy to appear uneven, which causes the fan material to tilt, which increases the difficulty of construction. Moreover, in the actual installation and construction, the height of the pulley needs to be adjusted after the door and window are lifted into the frame to adjust the height of the bottom of the profile and the slide rail. The am...

AI Technical Summary

Problems solved by technology

[0002] In the design of sliding doors and windows, in order to increase the lighting area and aesthetics, the size of the door leaf is usually increased, resulting in an increasing load-bearing capacity of the pulleys; secondly, in actual installation and construction, the pulleys at the left and right ends of the bottom of the profile are rigidly connected to the profile. It is difficult to achieve synchronous adjustment during the adjustment process, and it is prone to unevenness, which leads to the tilt of the fan material and increases the difficulty of construction; moreover, in the actual installation and construction, after the door and window are lifted into the frame, the height of the pulley needs to be adjusted to adjust the distance between the bottom of the profile and the slide rail. The amount of overlap, and due to the gravity of the doors and windows, the adjustment is laborious

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