Application of screw looseness prevention technique on hinge
I. application of products
Hinges are widely used and are found between doors and cabinets, almost everywhere.
Two, the current situation of product use
1. basic principles
The 2 screws are used to ensure that the theme between the doors and cabinets ensures adequate space to move and will not tilt.
2. why do you need this kind of regulation?
Due to mechanical, abrasive can not 100% accurate, so put the door will appear after a certain deviation, then we must adjust the 2 screws, the relative position between the adjusting groove and the screw holes on the cabinet body, in order to achieve good effect and nice.
3., the birth of defects
1, when the position of the 2 screws relative level, the door cabinet will produce a pull and pressure to Lewis, repeated after the screw position will be offset. Thus causing the door to be offset, so the use of a period of time after the door askew.
2) 2 the other screws relative clearance after locking the door cabinet should be relatively stable, prevent the relative gap after locking, the contact surface of moving parts and matrix with lateral pit to increase its positioning friction, prevent displacement. In the actual process, because the moving parts hinge and the substrate has a small angle), when the door opening and closing, moving parts by the pulsating tension due to the angle of the existence of a, the force is transmitted to the B screw, the pulsating pressure and tension, stress after several cycles. Screw B and matrix and a thread will produce fatigue deformation, will gradually loosening, caused by the moving parts so that the door will shift, shift, and the main body of the cabinet can not guarantee constant clearance and deformation, no longer beautiful appearance, the operation is not flexible and smooth, the extreme situation will cause the door off, endanger the user's personal safety.
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