Hinge structure

Abstract

The invention discloses a hinge structure comprising a pivot shaft, a rotary bracket, a fixed bracket, a fixing part, a limiting part and a locking part, wherein the rotary bracket and the limiting part are in nonrotational connection with the pivot shaft; the fixed bracket and the fixing part are in rotational connection with the pivot shaft; the fixing part and the fixed bracket are fixedly connected; the fixing part is provided with a limiting groove; the periphery of the limiting part extends towards the fixing part to form a limiting piece used for sliding in the limiting groove of the fixing part so as to limit the rotation angle range of the rotary bracket relative to the fixed bracket.

Description

technical field [0001] The invention relates to a hinge structure, in particular to a hinge structure with a limiting unit. Background technique [0002] At present, portable electronic devices such as notebook computers generally include a body and a cover, and a display screen is disposed on the cover. In order to make the display screen have a better viewing angle, it is usually necessary to rotatably connect the cover to the body through a hinge structure. [0003] see figure 1 , an existing hinge structure 10, including a pivot 11, a fixed bracket 12, a rotating bracket 13, a limiting member 14, a fixing member 15, a rotating positioning member 16, a shrapnel group 17 and a nut 18. The pivot 11 has a non-circular cross section, a flange 111 is formed at one end, and a threaded portion 112 is formed at the other end. The fixing bracket 12 defines a circular pivot hole 121 through which the pivot shaft 11 passes, and a limiting protrusion 122 is formed near the pivot h...

AI Technical Summary

Problems solved by technology

[0006] However, the limiting member 14 is made of powder metallurgy material, while the fixed bracket 12 is made of an alloy material with general hardness, and the limiting protrusion 122 is generally directly formed on the fixing bracket 12 by a stamping process, so the limiting After the positioning member 14 is rotated for many times, the limit protrusion 122 on the fixed bracket 12 is likely to be worn, thereby affecting the rotation angle range of the rotating bracket 13 relative to the fixed bracket 12

Therefore, the service life of this kind of hinge structure 10 is generally shorter

In addition, if the entire fixing bracket 12 is made of powder metallurgy materials, although the limiting protrusion 122 can have higher hardness and wear resistance, it will lead to a higher manufacturing cost of the entire hinge structure 10

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