Strong anti-falling hinge

Abstract

The invention relates to a strong anti-falling hinge. The strong anti-falling hinge comprises an upper fixing seat (1), a rocker arm (2), a lower fixing seat (3) and a pin shaft (4), the upper fixing seat (1) and the lower fixing seat (3) are same in structure, three fixing holes are formed in the upper fixing seat (1), a pin hole is formed in one side of the upper fixing seat, a plurality of fixing holes are formed in the rocker arm (2), a pin hole is formed in one side of the rocker arm (2), and the pin shaft (4) penetrates through the pin holes of the upper fixing seat (1), the rocker arm (2) and the lower fixing seat (3). The hinge is provided with the two fixing seats and can prevent the pin shaft (4) from bending and deforming under the torsional force of a door, and the three fixing holes in the upper fixing seat (1) and the lower fixing seat (3) can bear the greater torsional force under the condition of bearing the gravity of the door and prevent the hinge from tilting and causing the door to fall.

Description

technical field [0001] The invention relates to the field of hinges, in particular to a strong anti-drop hinge. Background technique [0002] A hinge is a device that connects a door to a door frame. At present, most hinges are mainly of single fixed seat and single rocker arm structure. Due to the direction of force, the fixed seat of the hinge is fixed on the door, the rocker arm is fixed on the door frame, and the rocker arm and the fixed seat are connected by a pin shaft. The door swings open or close smoothly. The door itself is very heavy, and all the weight is applied to the hinge. When the hinge bears the weight of the door for many years, the pin shafts of the two rocker hinges will bend, which will cause the door to tilt and fall, and cause friction or collision with the door frame. Moreover, the fixing holes on the hinge fixing base are mostly arranged in a straight line or broken line type, and the fixing base is fixed on the door frame through the fixing holes...

AI Technical Summary

Problems solved by technology

The fixed seat of the door hinge used for the freezer is in direct contact with the rocker arm. During the opening and closing of the door, the contact point between the rocker arm and the pin hole of the fixed seat will be worn. Since the wear occurs on the side close to the door, the hinge on the hinge The wear is unbalanced. Under the years of wear and tear, a slope will be formed at the pin hole of the hinge. Under the gravity of the door, the hinge will automatically turn to the lowest point of the slope, which is not conducive to the opening and closing of the door, and the replacement of the hinge is troublesome. And the damage of the door frame is large, and the replacement hinge is not suitable for daily life

[0005] Another example is the door hinge structure of a new anti-fall door with the application number 201820114818.X. The door hinge structure fixing seat of the anti-fall door is an L-shaped structure, which is not suitable for installation on the side of the jamb and the door panel of the door frame, and The door hinge structure of the anti-fall door is provided with threads, straight key grooves and spiral grooves inside, and the processing procedures are many and the installation procedures are complicated.

There are problems of high manufacturing cost, difficult installation and low installation efficiency

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