Elastic-friction rotational-positioning hinge

Abstract

The invention relates to an elastic-friction rotational-positioning hinge, which passes through and is arranged on a backing-up screw through a spacer block, an elastic element, a hinge plate A, an elastic element, a hinge plate B, another elastic element, and another spacer block in turn; the hinge plate A is a bent plate at a right angle, wherein the central position of one side plate is provided with a hole of which the outer edge is provided with a stopper plate, and the other side plate is provided with a mounting hole; the hinge plate B is a bent plate at a right angle, wherein the central position of one side plate is provided with a hole of which the outer edge is provided with a stopper groove, and the other side plate is provided with a mounting hole; and the stopper plate is arranged in the stopper groove. The hinge has the characteristics of simple structure, good self-locking performance and convenient mounting, and damage prevention. In addition, the hinge can be widely used in industries such as household appliances, furniture, jewelry boxes, portable communication terminals and the like.

Description

technical field [0001] The invention relates to a hinge, in particular to an elastic friction rotary positioning hinge for maintaining a certain angle or a certain position of an object. Background technique [0002] Many appliances, electrical appliances, communication terminals, etc. have hinges that need to be rotated and fixed. Many of them do not have self-locking position devices. The existing hinges with self-locking position function mainly have the following aspects The problem: [0003] 1. The traditional hinge is generally composed of two fixed shafts connected to the fixed bracket to clamp a rotating shaft connected to the moving bracket and fastening bolts, and then fixed by bolt fastening. This kind of hinge is easy to damage the bolts during use. The thread (commonly known as broken teeth); and the positioning effect is poor, after repeated tightening of the bolts, it is still prone to loosening. [0004] 2. The self-locking hinge used in common notebooks. W...

AI Technical Summary

Problems solved by technology

[0003] 1. The traditional hinge is generally composed of two fixed shafts connected to the fixed bracket to clamp a rotating shaft connected to the moving bracket and fastening bolts, and then fixed by bolt fastening. This kind of hinge is easy to damage the bolts during use. The thread (commonly known as broken teeth); and the positioning effect is poor, after repeated tightening of the bolts, it is still prone to loosening

[0004] 2. The self-locking hinge used in common notebooks. When the computer monitor is opened at a certain angle and the monitor is adjusted, the spring clip in the hinge device opens under pressure, which can keep the monitor at a certain angle. Although this hinge has its advantages, but Its structure is complicated, its manufacture is also complicated, and its torque value is small

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