CN201198866Y - Double-bag type automatic locking pivot device with double blocking surfaces - Google Patents

Abstract

A double-enclosed automatic locking pivot device with double stop surfaces mainly has two planes on the shaft portion of the rotating shaft, and two stop surfaces are respectively formed on the two shaft sleeves of the double-enclosed element. The double stop surface structure formed by the two planes on the shaft portion and the two stop surfaces improves the automatic locking function of the pivot device.

Description

Dual Pack Auto-Locking Knobs with Dual Stops

technical field

The utility model relates to a hinge structure in a foldable electronic device, in particular to a double-pack type automatic locking hinge device with double retaining surfaces.

Background technique

Knobs are used in foldable electronic devices, such as mobile phones, to provide folding functions. In FIG. 1 , a double-wrap type automatic locking hinge device 9 is shown, which is mainly composed of a rotating shaft 91 and a double-wrap 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 retaining surface 924 is formed on 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, when the edge of the plane 913 of the shaft part 912 turns to contact with the retaining surface 924, after exceeding a certain angle, due to the restoring force of the bushing 922, the shaft part 912 will automatically rotate to the plane 913 and the retaining surface 924 resist, as shown in Figure 2B, to achieve automatic locking.

Since the double-wrapped element 92 is formed by punching a sheet metal, as in the known technology, only one flat surface 913 and one retaining surface 924 are used to achieve the automatic locking function, the locking force is small, and it is easy to be easily opened; and the shaft part 912 Only one blocking surface 924 provides automatic locking, and its active force is small, so the automatic locking effect is poor; meanwhile, only one blocking surface 924 actuates the shaft portion 912, which is prone to fatigue on the shaft sleeve 922, which needs to be improved.

Contents of the invention

Aiming at the shortcomings of the known technology, the purpose of this utility model is to provide a double-pack type automatic locking pivot device with double retaining surfaces, through the double retaining surface structure formed by two planes and two retaining surfaces on the shaft, to Improve the automatic locking function of the hinge.

According to the above purpose, a double-pack type automatic locking hinge device with double retaining surfaces includes:

a rotating shaft having a connecting portion and a shaft portion, the surface of the shaft portion has two planes along the axial direction; and

A double-wrapped element has a connection plane, and extends from the side of the connection plane to provide elastic force so that the shaft can rotate in it, and is positioned side by side at any angle. has a notch and covers the shaft;

Wherein, each of the bushings forms two stop surfaces corresponding to the two planes of the shaft portion for automatic stoppers on the two planes of the shaft portion, thereby enabling the hinge to have an automatic locking function.

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: the double-pack type automatic locking pivot device with double retaining surfaces provided by the utility model has two retaining surfaces on the shaft sleeve and two planes of the shaft to resist, so after locking, The locking force is much stronger than the known technology, and it is not easy to be accidentally opened.

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

Description of drawings

Fig. 1 is an exploded view of a known double-pack type automatic locking hinge device,

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

Fig. 3 is an exploded view of the utility model,

Fig. 4 is the composite diagram of the present utility model,

Fig. 5A and Fig. 5B are the cross-section and the schematic diagram of the automatic locking action of the utility model.

Detailed ways

Please refer to FIG. 3 and FIG. 4 , the double-pack type automatic locking hinge device provided by the utility model is mainly composed of a rotating shaft 1 and a double-pack element 2 .

The rotating shaft 1 has a connecting portion 11 and a shaft portion 12 . The connecting part 11 is connected with the rotating part of the foldable electronic device, and the shaft part 12 has two planes 13 . Two oil grooves 14 are opened on the shaft portion 12 opposite to the two bushings 22 of the double-wrapped element 2 to achieve lubricating effect.

The double package element 2 has a connection plane 21 connected to the body of the foldable electronic device, and extends from the side of the connection plane 21 two side-by-side sleeves 22, each sleeve 22 has a gap 23, and covers the Shaft part 12. The sleeve 22 provides elastic force so that the shaft portion 12 can rotate in the sleeve 22 and be positioned at any angle. The two retaining surfaces 24 of each bushing 22 are arranged symmetrically with respect to the notch 23 .

And the main improvement of the utility model is that each axle sleeve 22 forms two retaining surfaces 24 corresponding to the two planes 13 of the shaft portion 12, and the two planes 13 of the shaft portion 12 are formed by the two retaining surfaces 24 automatically. The stopper makes the hinge have an automatic locking function.

The automatic locking action of the hinge device of the utility model can be referred to FIG. 5A first. The shaft part 12 rotates in the shaft sleeve 22 to widen the gap of the shaft sleeve 22 to cause deformation. When the edges of the two planes 13 on the shaft part 12 turn to Contacting with the two retaining surfaces 24, when exceeding a certain angle, due to the restoring force of the bushing 22, the shaft portion 12 will automatically turn to the two planes 13 and the two retaining surfaces 24 to resist along the direction indicated by the arrow. As shown in Figure 5B, to achieve automatic locking.

Because the utility model is provided with two planes 13 and two retaining surfaces 24 on the shaft sleeve 22 on the shaft portion 12, the automatic locking function of the pivot device is improved through the double retaining surface structure when locking. At the same time, since the two retaining surfaces 24 have two action points on the shaft portion 12 , the rotation of the rotating shaft 1 is relatively smooth during automatic locking, and the retaining surfaces 24 of the shaft sleeve 22 are less likely to be fatigued or damaged.

Claims (3)

1. the double-contracting formula of the two block faces of tool automatically locks pivot, comprising:

One rotating shaft has an a junction and an axial region, and this axial region surface has two planes vertically; And

One double-contracting element has one and connects the plane, and this connection planar side is extended two in order to providing elastic force that this axial region can be rotated within it certainly, and at the axle sleeve side by side of arbitrary angular positioning, each this axle sleeve has a breach, and is coated on this axial region;

It is characterized in that: each this axle sleeve forms two corresponding to two planes of this axial region and forms automatic backstop in order to two planes to this axial region, and then makes this pivot produce the block face of AutoLock feature.

2. the double-contracting formula according to the two block faces of the described tool of claim 1 automatically locks pivot, it is characterized in that two block faces of each axle sleeve are symmetrical arranged with respect to this breach.

3. the double-contracting formula according to the two block faces of the described tool of claim 1 automatically locks pivot, 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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