CN2580056Y - Hinge structure - Google Patents

Abstract

A hinge structure includes a fixed seat, a rotating shaft and two springs. The fixing seat passes through a stepped hole in the axial direction, and a longitudinal groove is connected to the side of the large hole of the stepped hole. Two ends of the rotating shaft are respectively provided with a pivoting part and a joint part. The two springs rotate in the opposite direction, and a number of protruding points are arranged on the surface of the inner ring. A plug-in strip extends from the end of each spring. The diameter of the inner ring of these springs is smaller than the outer diameter of the pivoting part of the rotating shaft. The rotating shafts of these springs are sheathed side by side on the pivoting part and are loaded into the stepped holes of the fixing seat, the insertion strips of these springs can be accommodated in the longitudinal groove, and the joint part protrudes from the fixing seat.

Description

hinge structure

【Technical field】

The utility model relates to a hinge structure for a notebook computer, in particular to a hinge structure which is wear-resistant and can adjust clamping force.

【technical background】

In the existing notebook computer, the liquid crystal display and the host are hinged, and the display can be closed on the host when not in use, and can be unfolded from the host when needed. In addition, when the liquid crystal display is unfolded, it can stop at any angle required by the user. Therefore, the hinge must adopt a tighter fit to meet the practical requirements.

Existing hinge, as shown in Figure 1, is that a pivot 93 passes through a shaft sleeve 91, a friction ring 92 is set between the pivot 93 and the shaft sleeve 91, when the pivot 93 is opposite to the shaft sleeve 91 When they rotate relative to each other, friction can be generated. However, friction in the process of relative rotation will cause mutual wear, and after a period of use, the pivotal connection between the display and the host will become loose. In addition, for heavier notebook computers, there may be problems that the friction ring 92 is too tight to open and close, and poor positioning occurs after unfolding.

【Content of invention】

The purpose of the utility model is to provide a hinge structure with wear resistance and adjustable clamping force.

The purpose of the utility model is achieved through the following technical solutions: a hinge structure includes a fixed seat, a rotating shaft and two springs. The fixing seat passes through a stepped hole in the axial direction, and a longitudinal groove is communicated with the large hole of the stepped hole laterally. Two ends of the rotating shaft are respectively provided with a pivoting part and a joint part. The two springs rotate in the opposite direction, and the surface of the inner ring is provided with several protruding points, and a plug-in strip extends from the end of each spring. The diameter of the inner ring of these springs is smaller than the outer diameter of the pivoting part of the rotating shaft. The rotating shafts of these springs are sheathed side by side on the pivoting part and are loaded into the stepped holes of the fixing seat, the insertion strips of these springs can be accommodated in the longitudinal groove, and the joint part protrudes from the fixing seat.

Due to the adoption of the above technical solution, the hinge structure of the utility model has the advantages of wear resistance and adjustable clamping force.

【Description of drawings】

The utility model will be further described below in conjunction with the embodiments with reference to the accompanying drawings.

Fig. 1 is a sectional view of a conventional hinge structure.

Fig. 2 is a three-dimensional exploded view of the hinge structure of the present invention.

Fig. 3 is a sectional view of the hinge structure of the present invention.

4A-D are the layout of the springs in the hinge structure of the present invention.

Fig. 5 is a reference diagram of the use state of the hinge structure of the present invention.

【Detailed ways】

Please refer to FIG. 2 , FIG. 3 and FIG. 5 , the hinge structure of the present invention includes a fixing seat 10 , a rotating shaft 20 and two springs 30 . The fixing seat 10 is matched with the corresponding structure of the notebook computer host 50 , and one end of the rotating shaft 20 is matched with the corresponding structure of the notebook computer display 40 . The rotating shaft 20 sleeved with the springs 30 is accommodated in the fixing base 10 , and the rotating shaft 20 rotates relative to the fixing base 10 , so that the display 40 pivots relative to the host 50 .

The fixing base 10 is substantially columnar and extends through a stepped hole 11 in the axial direction. The stepped hole 11 includes a large hole 13 and a small hole 15 . A shoulder 12 is formed between the large hole 13 and the small hole 15 . The large hole 13 is provided with a longitudinal groove 14 laterally, and the vertical groove 14 communicates with the large hole 13 . Two protruding ribs 16 are formed axially symmetrically on the outside of the fixing base 10 , and a plurality of grooves 17 are formed near the protruding ribs 16 . These ribs 16 and grooves 17 can match with corresponding structures of the host 50 .

The rotating shaft 20 is a long shaft, and is provided with a pivoting portion 22 , a limiting member 23 , a protruding shaft portion 24 and a coupling portion 26 in sequence. The pivoting portion 22 is arranged at one end of the rotating shaft 20. The limiting member 23 protrudes from the adjacent side of the pivoting portion 22. In this embodiment, the limiting member 23 is an annular retaining ring whose outer diameter is smaller than the inner diameter of the large hole 13 of the fixing base 10 and larger than the inner diameter of the large hole 13 of the fixing seat 10. Small hole 15 inner diameter. The protruding shaft portion 24 is disposed adjacent to the limiting member 23 and can be accommodated in the small hole 15 of the fixing seat 10 . The coupling portion 26 is disposed at the other end of the rotating shaft 20 , and the surface of the coupling portion 26 is provided with a plurality of parallel spline grooves along the axial direction, which are used for mating with corresponding structures of the display 40 . The joint portion 26 can be configured in other structures, such as splines or bumps. The limiting member 23 can also be configured in other forms to limit the pivoting portion 22 in the large hole 13 of the fixing base 10 , such as a stopper, a stopper pin, and the like.

These springs 30 are two oppositely helical springs. The diameter of the inner ring is smaller than the outer diameter of the pivoting portion 22 of the rotating shaft 20 , and the springs 30 are sleeved on the pivoting portion 22 to form a tighter fit. The surface of the inner ring of each spring 30 is provided with a plurality of protruding points 32 , during the pivoting process, these protruding points 32 generate frictional force with the surface of the pivoting portion 22 . An end portion of each spring 30 extends with a plug bar 34 that can be accommodated in the longitudinal slot 14 of the fixing base 10 .

When assembling, these springs 30 can be sleeved on the pivot portion 22 of the rotating shaft 20 facing, facing away or parallel to each other according to any of the methods shown in Figure 4A-D, and then the rotating shaft 20 of the tight sleeve spring 30 They are also put into the stepped hole 11 of the fixing seat 10 so that the insertion strip 34 of the spring 30 is accommodated in the longitudinal groove 14 . The limiting member 23 abuts against the shoulder 12 of the fixing base 10 , the protruding shaft portion 24 passes through and is accommodated in the small hole 15 , and the coupling portion 26 protrudes from the small hole 15 . The ribs 16 and grooves 17 of the fixing base 10 can be matched with corresponding structures of the host 50 , and the joint portion 26 of the rotating shaft 20 can be matched with corresponding structures of the display 40 .

Claims (9)

1. A hinge structure, including a fixed seat and a rotating shaft, the fixed seat runs through a stepped hole, the two ends of the rotating shaft are respectively provided with a pivoting part and a joint part, the pivoting part is accommodated in the stepped hole, The joint part protrudes from the fixed seat, and the feature is that the hinge structure also includes two springs sleeved on the pivot part, the rotation direction of these springs is opposite, and the diameter of the inner ring is smaller than the outer diameter of the pivot part, and A plug-in strip is extended at one end, and the lateral connection of the large hole of the stepped hole of the fixing seat can accommodate a longitudinal groove of the plug-in strip. 2. The hinge structure according to claim 1, characterized in that: the rotating shaft is sequentially provided with a limiting member and a protruding shaft portion between the pivoting portion and the coupling portion. 3. The hinge structure according to claim 1, wherein each spring inner ring is provided with a plurality of protruding points capable of generating friction with the pivoting portion. 4. The hinge structure as claimed in claim 3, wherein the springs can be sleeved on the pivoting portion of the rotating shaft in a manner of facing, facing away or paralleling each other. 5. The hinge structure according to claim 2, wherein the limiting member can limit the pivoting portion in the large hole of the stepped hole. 6 . The hinge structure according to claim 6 , wherein the limiting member is an annular retaining ring whose radial dimension is larger than the inner diameter of the small hole and smaller than the inner diameter of the large hole. 7 . 7. The hinge structure as claimed in claim 2, wherein the protruding shaft portion can be accommodated in the small hole of the stepped hole. 8. The hinge structure according to claim 1, characterized in that: several spline grooves are formed on the joint portion. 9. The hinge structure as claimed in claim 1, characterized in that: ribs and grooves are provided on the outside of the fixing seat.

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