Elastic gasket, screw assembly and nut assembly of anti-loose screw combined structure

Abstract

The invention discloses an elastic gasket of an anti-loose screw combined structure. The elastic gasket comprises a ring body with a port, anti-slip ratchets are arranged on the bottom surface of thering body, the top surface of the ring body extends upwards to form an anti-loose ring, the anti-loose ring is tapered, so that an outer inclined surface is formed on the outer side surface of the anti-loose ring, a plurality of notches are uniformly distributed in the periphery of the top surface of the anti-loose ring, and the top surface of the anti-loose ring is enabled to form a plurality offirst one-way teeth by the plurality of notches . According to the anti-loose screw combined structure, the elastic gasket, screws and unts are simple in structure, the structure has the functions ofanti-theft, anti-loosening and the like, and solves a series of problems caused by the fact that the screws in existing mechanical equipment cannot ensure to be absolutely anti-loosened and cause loosening of the equipment during running; the structure is stable, the machining is convenient, the batch production is facilitated, the manufacturing cost is low, and the marketization can be conveniently realized; and the invention further discloses a screw assembly of the anti-loose screw combined structure and a nut assembly of the anti-loose screw combined structure.

Description

technical field [0001] The invention relates to an anti-loosening screw assembly structure, in particular to a spring washer, a screw assembly and a nut assembly of an anti-loosening screw assembly structure. Background technique [0002] Anti-loosening screw combination structure, usually the screw passes through the through hole of the workpiece, and two nuts are screwed with the screw to achieve the purpose of anti-loosening, or the screw passes through the through hole of the workpiece and is inserted into the screw Washers, spring washers, and finally screwed nuts can also achieve the purpose of anti-loosening. However, this conventional anti-loosening screw combination structure is used in special fields (such as: high-speed vibration workpieces, aviation fields, etc.) , because the contact surfaces of the nut, the screw and the workpiece, and the contact surface of the nut and the spring washer or washer are all flat, when the thread slope slides due to the vibration ...

AI Technical Summary

Problems solved by technology

However, the nuts, bolts and washers of the above structure have the following defects: 1) Under extreme conditions, the washers are prone to breakage, and due to the infinite structure of the washers, the washers spread outward after breaking, thus losing the anti-loosening effect. 2) It can be concluded from the drawings in the manual that the continuous slope and the occlusal slope are symmetrical up and down, which leads to the existence of the thinnest part and the thickest part of the gasket. At the thinnest part, the thickness of the gasket is small, and its overall bearing The strength is low, and it is easy to break; 3) There is a gap on the outer peripheral surface of the gasket, which is used for inserting the claws of special tools, so that the nut and the gasket can be rotated, but the gap also reduces the overall strength of the gasket; 4) The gasket is exposed and easily corroded by external factors, resulting in a decrease in the anti-loosening performance

Images