CN2931911Y - biaxial pivot - Google Patents

Abstract

A dual-axis pivoting device is mainly provided with a cam group for positioning on a vertical rotating shaft which is vertically connected to a horizontal rotating shaft, wherein a fixed cam is integrally formed with the vertical rotating shaft, and a rotating cam is engaged with a bracket and can rotate together on the vertical shaft. Thus, by integrally forming the fixed cam with the vertical rotating shaft, the number of assembled parts can be reduced, and a good average verticality and easy control can be ensured, thereby improving the stability of the pivoting device.

Description

biaxial pivot

technical field

The utility model relates to a pivot device structure, in particular to a double-axis pivot device with an improved structure.

Background technique

In some foldable electronic products, such as mobile phones, in addition to having a display screen that can be opened or folded relative to the main body, a biaxial pivot device arranged therebetween allows the display screen to be opened relative to the main body. 360° rotation to improve the use function of folding electronic products.

The double-axis pivot device can be positioned at certain angles under the function of providing the folding display screen with a 360° rotation, so a set of cams must be provided on the vertical shaft; it consists of a fixed cam fixed on the vertical shaft. and a rotating cam that can rotate on a vertical shaft; using the bumps and grooves designed on the contact surface of the fixed cam and the rotating cam, the rotating cam that rotates together with the bracket that connects the folding display screen can produce a certain Positioning functions at certain rotation angles, such as 0°, 90° and 180°.

In the traditional double-axis pivot design, the fixed cam is an independently manufactured part. The non-circular shaft on the vertical shaft is assembled with the perforation in the fixed cam, so that the fixed cam is fixed on the vertical shaft without rotation. . Such a design will result in an increase in the combined parts of the entire biaxial pivot, especially the tolerance of the combination of the fixed cam and the vertical shaft, plus the tolerance of the rotating cam, which will easily lead to the combination of the biaxial pivot. The verticality is not easy to control and ensure, which increases the instability of the biaxial pivot and needs to be improved.

Contents of the invention

In view of the structural shortcomings of the conventional dual-axis pivot device proposed above, the utility model provides a dual-axis pivot device with an improved structure, which reduces the assembly parts, and there is no tolerance problem between the fixed cam and the vertical shaft. It ensures good average verticality and easy handling of the entire biaxial pivot to improve stability.

The technical solution of the utility model: a biaxial pivot device located between the body of the foldable electronic product and the display screen that can be opened or folded; it is characterized in that it includes:

A horizontal rotating shaft cover, one end of which is a connecting end of the horizontal rotating shaft used for combination with the body, and a combination hole in the middle;

a vertical rotating shaft, the bottom end of which is connected to the combination hole covered by the above-mentioned horizontal rotating shaft, and a fixed cam is integrally formed with a positioning groove on the contact surface of the fixed cam;

A rotating cam, which fits on the above-mentioned vertical rotating shaft, has a positioning protrusion on its contact surface for rotating and positioning relative to the above-mentioned vertical rotating shaft and matching with the positioning groove of the above-mentioned fixed cam; The other end face has a slot;

A bracket, the bottom surface of which is provided with an inlay that fits into the slot of the above-mentioned rotating cam, a circular hole is provided in the middle for the passage of the above-mentioned vertical rotating shaft, and a recess is provided above the circular hole;

an elastic element fit on the above-mentioned vertical shaft, one end of which is located in the recess of the above-mentioned bracket; and

A positioning ring is pressed on the other end of the above-mentioned elastic element and matched with the above-mentioned vertical shaft, and the above-mentioned positioning projection is embedded in the above-mentioned positioning groove.

Wherein, the horizontal rotating shaft is covered by a zinc alloy piece.

Wherein, the rotating cam and the fixed cam have positioning positions at an angle of 0°, 90° or 180°.

Wherein, the bracket is connected with the folding display screen.

Wherein, the elastic element is a spring.

Beneficial effects of the utility model: through the above-mentioned structure, the utility model integrally manufactures the fixed cam and the vertical shaft to achieve the reduction of combined parts, and since there is no tolerance problem between the fixed cam and the vertical shaft, the entire biaxial pivot This ensures good average verticality, ease of handling and increased stability.

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

Description of drawings

Fig. 1 is the three-dimensional assembly diagram of the present utility model,

Fig. 2 is an exploded view of the utility model,

Fig. 3 is the rear view of the utility model,

Fig. 4 is a side view of the utility model,

Fig. 5 is the usage example figure of the utility model.

Detailed ways

Please refer to Fig. 1 and Fig. 2, the biaxial pivot device 1 of the present utility model mainly comprises a horizontal shaft cover (cover) 11, a vertical shaft 12, a rotating cam 13, a bracket (bracket) 14, an elastic element (spring) 15 and a positioning ring 16.

The horizontal shaft cover 11 can be a zinc alloy piece, one end of which is a connection end 111, which is connected with a horizontal shaft (not shown) combined with the body; the horizontal shaft cover 11 still has a combination hole 112 in the middle, which is connected to the vertical shaft 12 The bottom end 121 is connected. A fixed cam 122 is integrally formed on the vertical shaft 12, and a positioning groove 123 is formed on the contact surface thereof.

The rotating cam 13 is sleeved on the vertical rotating shaft 12, and a positioning protrusion 131 is formed on its contact surface, which cooperates with the positioning groove 123 on the fixed cam 122, and can be rotated when the rotating cam 13 is rotated to a certain angle relative to the vertical rotating shaft 12. A positioning effect is generated, such as 0°, 90° and 180°, etc.; the other end surface of the rotating cam 13 relative to the positioning projection 131 is formed with a slot 132, which is embedded with the insert 141 on the bottom surface of the bracket 14, as shown in FIG. 3 And FIG. 4 , so that the bracket 14 will rotate together with the rotating cam 13 .

The bracket 14 is connected with the foldable display screen, and has a round hole 142 in the middle for the vertical shaft 12 to pass through; a recess 143 is formed above the round hole 142 for accommodating the elastic element 15 .

Elastic element 15 can be a spring, fits on the vertical shaft 12, one end of which is placed in the recess 143 of bracket 14, and the other end is pressed by a positioning ring 16, so that the rotating cam 13 and the vertical shaft 12 below the bracket 14 The contact surface of the fixed cam 122 on the top keeps the positioning groove 123 biting into the positioning protrusion 131, as can be seen in Figure 4, and uses the positioning ring 16 to closely cooperate with the vertical shaft 12, so that the rotating cam 13, the bracket 14, the elastic element 15 and the positioning The rings 16 are sequentially assembled on the vertical shaft 12 without breaking away. At the same time, due to the elastic force provided by the elastic element 15, the bracket 14 and the rotating cam 13 can be rotated relative to the vertical shaft 12 as the central axis, and then the positioning protrusion 131 of the rotating cam 13 is used to cooperate with the positioning groove 123 on the fixed cam 122, When the bracket 14 is rotated to certain angles, it will produce a positioning effect, such as 0°, 90° and 180°.

Furthermore, referring to Fig. 5, the utility model is combined with an embodiment of a foldable electronic product. Taking a mobile phone as an example, the foldable display screen 3 can be opened or folded relative to the main body 2 by using the horizontal shaft of the biaxial pivot device 1. (refer to arrow G1), and the bracket 14 of the biaxial pivot device 1 can be rotated on the vertical shaft 12, so that the folding display screen 3 connected to the bracket can also rotate 360° relative to the main body 2 after opening (Refer to arrow G2). Using the positioning projection 131 between the contact surface of the rotating cam 13 and the fixed cam 122 of the biaxial pivot device to cooperate with the positioning groove 123, the positioning effect can be generated at certain angles, such as 0 °, 90 ° and 180 °, etc. .

It is worth noting that the utility model can achieve the reduction of combined parts due to the integral molding of the fixed cam 122 and the vertical shaft 12, and because there is no tolerance problem between the fixed cam 122 and the vertical shaft 12, the average of the entire biaxial pivot Verticality is better controlled and ensured to improve stability.

In addition, what is shown in the drawing is only a preferred embodiment of the utility model, but it does not limit the patent scope of the utility model, but simple changes made according to the technical idea of the utility model, for example, the elastic element is replaced by a shrapnel group, Or any other equivalent replacements, all belong to the protection scope of the present utility model.

Claims (5)

1. A biaxial pivot device located between the body of the foldable electronic product and the display screen that can be opened or folded; it is characterized in that it includes: A horizontal rotating shaft cover, one end of which is a connecting end of the horizontal rotating shaft used for combination with the body, and a combination hole in the middle; a vertical rotating shaft, the bottom end of which is connected to the combination hole covered by the above-mentioned horizontal rotating shaft, and a fixed cam is integrally formed with a positioning groove on the contact surface of the fixed cam; A rotating cam, which fits on the above-mentioned vertical rotating shaft, has a positioning protrusion on its contact surface for rotating and positioning relative to the above-mentioned vertical rotating shaft and matching with the positioning groove of the above-mentioned fixed cam; The other end face has a slot; A bracket, the bottom surface of which is provided with an inlay that fits into the slot of the above-mentioned rotating cam, a circular hole is provided in the middle for the passage of the above-mentioned vertical rotating shaft, and a recess is provided above the circular hole; an elastic element fit on the above-mentioned vertical shaft, one end of which is located in the recess of the above-mentioned bracket; and A positioning ring is pressed on the other end of the above-mentioned elastic element and matched with the above-mentioned vertical shaft, and the above-mentioned positioning projection is embedded in the above-mentioned positioning groove. 2. The biaxial pivot device according to claim 1, wherein the horizontal shaft is covered by a zinc alloy piece. 3. The dual-axis pivot device according to claim 1, wherein the rotating cam and the fixed cam have positioning positions at an angle of 0°, 90° or 180°. 4. The biaxial pivot device as claimed in claim 1, wherein the bracket is connected to the folding display screen. 5. The biaxial pivot device as claimed in claim 1, wherein the elastic element is a spring.

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