Mono-spiral groove self closing hinge structure

Abstract

The invention relates to a hardware door accessory, and provides a mono-spiral groove self closing hinge structure which can realize the functions of automatic door closing and hovering and location at a certain angle. The mono-spiral groove self closing hinge structure comprises a moving hinge assembly and a fixed hinge assembly; the fixed hinge assembly comprises a spiral mechanism and an elastic force adjusting mechanism. In the spiral mechanism, a position between the rotary shaft and a moving hinge piece is relatively fixed in a rotary direction, when the rotary shaft rotates, a roller pin rolls in a spiral track, such that a spiral sleeve moves downwards to extrude a spring, and a release force of the spring pushes the spiral sleeve to move upwards, such that the rotary shaft rotates to drive the moving hinge to rotate, and automatic door closing is realized. One section in the spiral track is horizontal, when the roller pin rolls in such section, the spring cannot release the elastic force, and free hovering of a door is realized.

Description

[0001] Technical field: [0002] The invention belongs to the category of door hinges, and in particular relates to a door hinge capable of automatic door closing and positioning after the door is opened. [0003] Background technique: [0004] At present, ordinary door hinges widely used in the market do not have the functions of automatic door closing and positioning. Every time the door is opened, it is operated by a person and needs to be "closed at hand", so it cannot satisfy the user's functions of automatic door closing and hovering positioning at a specific angle. , This is not only laborious and time-consuming, but also causes a lot of trouble to life. Although there are also automatic door closing devices using special devices such as spring power storage and dampers on the market, there are defects such as complex structure, many parts, large installation space, time-consuming and labor-intensive installation, and high cost. [0005] Invention content: [0006] Aim...

AI Technical Summary

Problems solved by technology

[0004] At present, ordinary door hinges widely used in the market do not have the functions of automatic door closing and positioning. Every time the door is opened, it is operated by a person and needs to be "closed at hand", so it cannot satisfy the user's functions of automatic door closing and hovering positioning at a specific angle. , which is not only laborious and time-consuming, but also causes a lot of trouble to life

Although automatic door closing devices using special devices such as spring power storage and dampers have also appeared on the market, they have defects such as complex structure, many parts, large installation space, time-consuming and labor-intensive installation, and high costs.

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