positioning hinge

Abstract

The invention discloses a positioning hinge. The positioning hinge comprises a fixing frame, a holding arm, a supporting arm and a cantilever. The holding arm is hinged to one end of the supporting arm. The fixing frame is hinged to the other end of the supporting arm. The fixing frame is provided with a slide rail, a first slider and a second slide. The first slider is hinged to one end of the supporting arm. The second slider is hinged to one end of the cantilever. The supporting arm is hinged to the other end of the cantilever. The slide rail is matched with the first slider and the second slider. The slide rail is provided with a positioning device. Due to a three-connection-rod structure of the hinge, when the hinge is opened, a certain distance is reserved between the supporting arm and the left end of the fixing frame, and the back side of a window sash is convenient to clean. Due to the adoption of a separation installing mode, installation is easy. Positioning is achieved through the cooperation of the concave and convex faces of the slide rail and the concave and convex faces of the sliders, and each time of later positioning can be achieved just through the first time of positioning after installation; and resistance changes are achieved through the gradient of the slide rail, and resistance needed at different positions of the window sash is achieved. The hinge positioning device is simple in structure, can achieve real-time positioning and is good in positioning effect.

Description

Technical field [0001] The invention relates to the field of hardware, in particular to a positioning hinge. Background technique [0002] Hinges are commonly used hardware accessories for casement windows. Commonly used hinges on the market are three-link, four-link or multi-link. Different links have different forces. The most common four-link structure hinges include a fixed frame, a support arm and three cantilevers. , The three cantilever arms and the support arm form a four-bar linkage structure. The four-bar linkage structure connects the two points of the fixed frame, one of which is fixed and hinged, and the other point is connected by a slider. However, the existing hinges are not easy to clean the window sash when opened On the back side, it is troublesome to install. It needs to be installed together with the integral hinge. When the window is opened, the wind pressure acts on the window sash, causing the window sash to shake. When the wind pressure is high, the windo...

AI Technical Summary

Problems solved by technology

[0002] Hinges are commonly used hardware accessories for casement windows. Commonly used hinges on the market include three-link, four-link or multi-link. Different links bear different forces. The most common hinge is a four-link structure, including a fixed frame, a bracket and three cantilevers. , three cantilevers and supporting arms form a four-bar linkage structure, and the four-bar linkage structure connects two points of the fixed frame, one of which is a fixed hinge, and the other is connected by a slider, but the existing hinge is not easy to clean the sash when it is opened The back, and the installation is troublesome, and the overall hinge needs to be installed together; when the window is opened, it is affected by the wind, and the wind pressure acts on the sash, causing the sash to shake. There are security risks

There is a hinge positioning device on the market, which sets a small boss in the slide rail, and then screws it into the locking position, but this positioning method needs to be unscrewed and screwed in for each positioning, and the operation is cumbersome

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