Corner welding reinforcement for plastic-steel doors and windows

Abstract

The invention relates to a plastic steel door and window corner welding reinforcement member. The plastic steel door and window corner welding reinforcement member is provided with a first reinforcement corner member and a second reinforcement corner member having the same structure as the first reinforcement corner member; the first and second reinforcement corner members are square bodies having a 45-degree slope on one end; the 45-degree slopes of the two reinforcement corner members are combined to form an L-shaped right-angle shape; each 45-degree slope is provided with raised blocks and a recessed melting groove; grooves are formed in the side surface of the square bodies; sawtooth-shaped internal fastening teeth and stabilizing columns are placed in the grooves; the plastic steel door and window corner welding reinforcement member is further provided with a first slide positioning device and a second slide positioning device; the internal surface of each slide positioning device is provided with an external fastening tooth and a stabilizing hole matched with each internal fastening tooth and each stabilizing column; push rods are mounted on the upper ends of the first and second slide positioning devices; fine anti-back teeth are arranged on tooth surfaces of the internal and external fastening teeth; and the push rod of each slide positioning device is provided with a pull ring and a reset break point. The plastic steel door and window corner welding reinforcement member can be applied to corner connection of a plastic steel sash; the plastic steel door and window corner welding reinforcement member has novel structure and convenient use; and sash corner connection can be firmly connected, service life can be prolonged and maintenance can be reduced.

Description

technical field [0001] The invention relates to the field of corner welding of doors and windows of architectural plastic-steel door and window hardware, in particular to a corner welding reinforcement of plastic-steel doors and windows. Background technique [0002] The corners on the existing door and window body, that is, the connection between the horizontal frame and the vertical frame, often adopts a connection corner code, such as a kind of movable corner code disclosed in CN203394295U, which is arranged on the corner of the window frame or sash , including the hook angle code and the right angle code. One end of the hook angle code and the right angle code are fitted together to form a right angle, and they are connected together by bolts. The hook angle code and the right angle code are respectively provided with a cavity in the structure. There is a spring, one end of the spring is connected to the card, and the other end is connected to the bayonet. The bayonet is...

AI Technical Summary

Problems solved by technology

[0002] The corners on the existing door and window body, that is, the connection between the horizontal frame and the vertical frame, often adopts a connection corner code, such as a kind of movable corner code disclosed in CN203394295U, which is arranged on the corner of the window frame or sash , including the hook angle code and the right angle code. One end of the hook angle code and the right angle code are fitted together to form a right angle, and they are connected together by bolts. The hook angle code and the right angle code are respectively provided with a cavity in the structure. There is a spring, one end of the spring is connected to the card, and the other end is connected to the bayonet. The bayonet is installed on the horizontal frame or mullion of the form. However, in this way, there is a problem of corner drop during use, and maintenance after corner drop The workload is relatively large, and the cost also increases. During the repair process, wooden or plastic fixing parts are often added to the corners of the corner code base. , the wooden block will be moldy, which will affect the use; and when using plastic, the strength is relatively low, and it is easy to loosen under the action of external force; another example is the publication number: CN2050068U discloses a door and window frame corner connector door, the corner connection The piece has a square sleeve corner body and two plug posts extending vertically to a predetermined length from the adjacent two sides of one corner of the body, and ratchets are distributed on the surface of the plug posts, and their width is slightly larger than the width of the inner space of the frame material. , in this way, the ratchet teeth will loosen with the prolongation of use time

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