Door hinge with concealed bearing
A hinge device and hidden technology, which is applied in door/window accessories, wing leaf parts, hinge boards, etc., can solve the problems of severe wear of hinge devices, high wear of bearing devices, and inconvenience for people
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[0012] A door hinge device is composed of an inner and outer door hinge unit. The inner and outer door hinge units include additional devices that can be installed on the door frame or door; the inner door hinge unit is installed on the door frame or door; Between two or more cylindrical bearing parts on the outer door hinge unit; inside the bearing part, a first bearing sleeve and a second bearing sleeve are arranged, and the bearing sleeve is made of special engineering material plastic steel POM PTFE Made; between the first bearing sleeve and the second bearing sleeve is provided with a ball, the ball is made of metal material, the door hinge device also includes a supporting bolt and an adjusting screw, the first bearing sleeve is close to the inner The direction of the department hinge unit is firmly sleeved on the free end of the supporting bolt; the adjusting screw can be screwed into the bearing part; the second bearing sleeve is subjected to the ball's back pressure away ...
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