Two-way buffer pulley system

Abstract

The invention relates to a buffering pulley system and provides a bidirectional buffering pulley system, which can be suitable for both wider and narrower doors and windows, and is higher in applicability, simpler in integral structure and more stable in performance. The adopted technical scheme is that a damping buffer is arranged; two ends of the damping buffer are respectively in pin joint with a silence head pulley block and a silence secondary pulley block; a silence guide rail is arranged; two ends of the silence guide rail are respectively and fixedly provided with a buffering stopper, and the damping buffer can do reciprocating motion between the two buffering stoppers; a damping rod fixed seat is embedded into the middle part of the damping buffer; a unidirectional damping rod is embedded into the damping rod fixed seat; two sliding blocks are symmetrically arranged, and are respectively in pin joint with two ends of the damping rod fixed seat and the damping rod; an extension spring is also arranged between the two sliding blocks to serve as a buffering drive part; the two sliding blocks are respectively provided with a turning block, and each turning block is matched with an anti-disconnection groove formed in the corresponding buffering stopper, and thus, each turning block can be buckled on the corresponding buffering stopper during a working stroke, and disconnection is prevented.

Description

technical field [0001] The invention relates to the field of architectural hardware fittings, in particular to a buffer pulley system. Background technique [0002] At present, the damping pulley with one-way single damping rod structure is commonly used in the market, that is, the single damping rod is directly combined with a pulley block to realize the one-way buffer function. If the aforementioned pulley is used to realize the two-way buffer opening and closing function of the door or window, It is necessary to install a set of damping pulleys on the left and right ends of a door or window to play a two-way buffering effect. Due to the limitation of the working stroke of the damping rods, it is necessary to consider the working strokes of the damping rods installed on both sides. , poor adaptability to the width of the door or window, and the use of two sets of damping pulleys will also increase the cost and waste resources. CN202170702U discloses a two-way buffer devic...

AI Technical Summary

Problems solved by technology

The working part of the reset mechanism is stuck in a housing groove, and a buckle groove is provided at each end to be locked into the clamping block to limit the position. Since the buckle groove is a straight groove, when the clamping block is buckled in, there will be collision and noise , and it is also prone to jamming when the block is withdrawn; in addition, because the front bump on the snap body is lower than the rear bump, when the reset mechanism is "wound", it will be unhooked because the buckle cannot be engaged. "Winding", thereby disabling the reset mechanism

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