Suspension type horizontal-opening door electric door-opening device
A technology of swing doors and door openers, which is applied in door/window accessories, power control mechanisms, building fastening devices, etc., and can solve the problems of scratching the ground, safety, and marking marks on the ground, etc.
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[0044] The method of closing and opening the door adopted, in Fig. 1, the support on the wall (a) corresponds to the traction point e on the hinge (d) on the wall (A) and the door a little outward, and the height of the fulcrum (b) is The door body (c) is closed and the projection is viewed from above (the hinge is drawn as a plane mechanism). The symmetrical centerline (I) of the door body (I) passes through the hinge (d) center and the connection line is the yardstick, and the vertical direction of the plane is higher than a certain height. This height is the moment arm of the closed state door rotation at the door (c), see line of action (f). The support on the wall (a) is set at a position further outward from the hinge (d), so that the pivot point (b) on the wall is always higher than the symmetrical line of the door body during the whole process before the door (c) is opened to 90 degrees. For the connecting line of the hinge, see the line of action (g);
[0045] At the...
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