CN201221553Y - Double-bag type automatic locking pivot device - Google Patents

Abstract

A double-package automatic locking pivot device is mainly characterized in that a double-package element with a shaft part of a rotating shaft wrapped by two shaft sleeves is provided with a supporting sheet on a connecting plane of the double-package element, the supporting sheet is close to the edge of a blocking surface at the tail end of the two shaft sleeves on the double-package element to form two inclined convex blocks, and the two inclined convex blocks are respectively supported on the outer edges of the two blocking surfaces. According to the structure, the two inclined convex blocks can support the blocking surfaces at the tail ends of the two shaft sleeves so as to keep the shaft sleeves not easy to deform and improve the automatic locking function.

Description

Double Pack Automatic Locking Hinge

technical field

The utility model relates to a hinged structure of electronic equipment, in particular to a double-pack type automatic locking hinge.

Background technique

Hubs are used in foldable electronic devices, such as mobile phones, to provide folding functions. In FIG. 1 , a double-wrapped automatic locking hinge is shown, which is mainly composed of a rotating shaft 91 and a double-wrapped element 92 .

The rotating shaft 91 has a connecting portion 911 and a shaft portion 912 , and a surface of the shaft portion 912 has a plane 913 in the axial direction. The double-wrap element 92 has a connection plane 921, and extends two side-by-side shaft sleeves 922 from the side of the connection plane 921, each shaft sleeve 922 has a gap 923, and covers the shaft portion 912; the shaft sleeve 922 provides The elastic force enables the shaft portion 912 to rotate in the sleeve 922 and be positioned at any angle.

A blocking surface 924 is formed at the end of the shaft sleeve 922 , which interacts with the flat surface 913 on the shaft portion 912 to generate an autolock function. As can be seen in Figure 2A, the edge of the plane 913 of the shaft part 912 turns to contact with the retaining surface 924. When a certain angle is exceeded, due to the restoring force of the shaft sleeve 922, the shaft part 912 will automatically rotate in the direction of the arrow in the figure to The plane 913 resists against the blocking surface 924, as shown in FIG. 2B, to achieve automatic locking.

When the shaft part 912 rotates in the shaft sleeve 922, the plane 913 contacts with the retaining surface 924 and the shaft sleeve 922 will be deformed. Since the force on the retaining surface 924 is the largest, this will easily deform the retaining surface 924, and then This makes the shaft sleeve 922 loosen around the shaft portion 912 , which reduces the positioning and automatic locking functions of the shaft sleeve 922 , which needs to be improved.

Contents of the invention

The purpose of the utility model is to provide a double-pack type automatic locking hinge to overcome the shortcomings of the known technology, keep the bushing from deformation, improve the automatic locking function, and further increase the service life of the hinge.

According to the above purpose, a double-pack type automatic locking hinge is characterized in that it includes:

A rotating shaft has a connecting part and a shaft part, and the surface of the shaft part has a plane along the axial direction;

A double pack element has a connection plane, and extends from the side of the connection plane two side-by-side sleeves to provide elastic force and enable the shaft to rotate and be positioned at any angle, each of the shaft The sleeve has a notch and covers the shaft; the end of each of the bushes close to the notch is formed with a retaining surface that can form an automatic locking function with the plane of the shaft; and

A support piece is fixed on the connection plane with at least one locking element, and two oblique projections are formed on the edge of the support piece close to the end stop surfaces of the two bushings, and the two oblique projections are respectively supported on the two The outer edge of the retaining face.

Wherein, the supporting sheet extends from the connection plane of the double-wrapped element and folds over.

Wherein, the support sheet is a single sheet body.

Wherein, two oil grooves are opened on the shaft part opposite to the two shaft sleeves of the double-wrapped element.

Beneficial effects of the utility model:

Through the design of the oblique protrusions of the supporting piece of the utility model, the retaining surface at the end of the shaft sleeve can be supported to keep the shaft sleeve from being easily deformed, improve the automatic locking function, and further increase the service life of the hinge.

Hereinafter, the structural features and usage effects of the present utility model will be described in detail according to the embodiments shown in the drawings.

Description of drawings

Figure 1 shows an exploded view of a known double-pack type automatic locking hinge,

Fig. 2A and Fig. 2B show the section of Fig. 1 and the schematic diagram of automatic locking action,

Fig. 3 shows the three-dimensional appearance diagram of the utility model,

Fig. 4 represents the exploded view of the utility model,

Fig. 5 shows the sectional view of the utility model,

Fig. 6 shows a perspective view of another embodiment of the present invention.

Detailed ways

Please refer to FIG. 3 to FIG. 5 , a double-pack type automatic locking hinge provided by the utility model is mainly composed of a rotating shaft 1 , a double-package element 2 and a support piece 3 .

The rotating shaft 1 has a connecting part 11 and a shaft part 12. The surface of the shaft part 12 has a plane 13 in the axial direction; the shaft part 12 is provided with two oil grooves 14 opposite to the two bushings 22 of the double-wrapped element 2. In order to achieve the lubrication effect.

The double-wrapped element 2 has a connection plane 21 , and two side-by-side sleeves 22 extend from the side of the connection plane 21 . Each sleeve 22 has a notch 23 and covers the shaft portion 12 . The shaft sleeve 22 provides elastic force so that the shaft portion 12 can rotate in the shaft sleeve 22 and be positioned at any angle; and the end of each sleeve 22 connected to the notch 23 forms a blocking surface 24 . The blocking surface 24 and the flat surface 13 of the shaft portion 12 form an automatic locking function, which can be referred to in the prior art.

The utility model is mainly provided with a support piece 3 on the connection plane 21, and the support piece 3 is fixed on the connection plane 21 with two locking elements 31 (such as rivets shown in the figure), and the support piece 3 is connected to two shafts. Two oblique protrusions 32 are formed on the edge of the retaining surface 24 at the end of the sleeve 22 , and the two oblique protrusions 32 are respectively supported on the outer edges of the two retaining surfaces 24 .

The setting of the oblique protrusion 32 of the supporting piece 3 can support the retaining surface 24 at the end of the bushing 22, which can keep the bushing 22 from being easily deformed, improve the automatic locking function of the hinge, and further improve the service life of the hinge.

In the embodiment of the present invention shown in FIGS. 3 to 5 , the supporting sheet 3 is formed by extending from the connection plane 21 of the double pack element 2 and turning over. As shown in FIG. 6 , the support piece 4 is a separate piece, fixed on the connection plane 21 with two locking elements 41, and the two oblique projections 42 are respectively supported on the outer edges of the two retaining surfaces 24. It is another variation embodiment of the utility model.

Claims (4)

1. a double-contracting formula automatically locks pivot device, it is characterized in that, comprising:

One rotating shaft has an a junction and an axial region, and this axial region surface has a plane vertically;

One double-contracting element has one and connects the plane, and this connection planar side is extended two in order to elastic force to be provided and this axial region can be rotated and can be at the axle sleeve side by side of arbitrary angular positioning within it certainly, and each this axle sleeve has a breach, and is coated on this axial region; Each this axle sleeve is formed with a block face that can form AutoLock feature with this axial region plane near the end of this breach; And

One support plate is fixed on this connection plane with at least one locking element, and at the edge of this support plate near the terminal block face of this two axle sleeve, is formed with two oblique projections, and this two oblique projection is supported in the outer rim of this two block face respectively.

2. automatically lock pivot device according to the described double-contracting formula of claim 1, it is characterized in that, support plate extends turnover from the connection plane of this double-contracting element.

3. automatically lock pivot device according to the described double-contracting formula of claim 1, it is characterized in that, support plate is an independent lamellar body.

4. automatically lock pivot device according to the described double-contracting formula of claim 1, it is characterized in that, two axle sleeves of relative this double-contracting element offer the twice oil duct on the axial region.

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