Rotating mechanism of support arm and electronic equipment

Abstract

The utility model discloses a rotating mechanism of a support arm and electronic equipment, and relates to the technical field of support design, the rotating mechanism comprises a bottom plate and a rotating disc, the bottom plate is provided with a fixedly installed toothed plate; the turntable is pivotally connected to the bottom plate, a driving assembly and a support arm are arranged on the turntable, the driving assembly comprises a motor, a transmission wheel set and an output wheel, the output wheel is meshed with the toothed plate, and the motor can drive the transmission wheel set to rotate so as to drive the output wheel to rotate, so that the turntable and the support arm rotate relative to the bottom plate. The transmission wheel set is provided with a plurality of pairs of speed reduction wheel sets which are meshed with one another, so that the large speed reduction ratio is achieved, the angle adjusted by single-time starting of the motor can be reduced, the flexible fine adjustment function is achieved, and the use experience is improved.

Description

Technical Field

[0001] This utility model relates to the field of bracket design technology, and in particular to a rotating mechanism and electronic device for a support arm. Background Technology

[0002] With the development of technology, personal portable electronic products such as laptops and tablets are widely used in daily life. However, the limited size of portable electronic products often requires stands for support to flexibly adapt to different usage scenarios. Current stands can electrically adjust height and rotation angle; however, the angle adjusted by the motor at a single start is relatively large, making fine adjustments difficult in actual use and resulting in a poor user experience. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a rotating mechanism and electronic equipment for a support arm, which can reduce the angle adjusted by a single motor start-up, thereby improving the flexibility of fine-tuning.

[0004] The rotating mechanism of the support arm according to the first aspect of the present invention includes:

[0005] The base plate is equipped with a toothed plate for fixed installation;

[0006] The turntable is pivotally connected to the base plate. The turntable is equipped with a drive assembly and a support arm. The drive assembly includes a motor, a transmission wheel set and an output wheel. The transmission wheel set has multiple pairs of meshing reduction gear sets. The output wheel meshes with a toothed plate. The motor can drive the transmission wheel set to rotate, thereby driving the output wheel to rotate, thus realizing the rotation of the turntable and the support arm relative to the base plate.

[0007] The rotating mechanism of the support arm according to the first aspect embodiment of the present invention has at least the following beneficial effects:

[0008] In this embodiment, a toothed plate is fixedly mounted on the base plate. A motor, a transmission wheel assembly, and an output wheel are mounted on the turntable. When the motor rotates, it drives the transmission wheel assembly, which in turn drives the output wheel, thus enabling the turntable and the support arm to rotate relative to the base plate, thereby adjusting the rotation angle of the support arm. The transmission wheel assembly has multiple pairs of meshing reduction gears, achieving a large reduction ratio. This reduces the angle adjusted per motor start, enabling flexible fine-tuning and improving the user experience.

[0009] According to an embodiment of the first aspect of the present invention, the drive assembly includes a mounting frame, which is fixedly mounted on a turntable, a motor is fixedly mounted on the mounting frame, and a transmission wheel set is located between the mounting frame and the turntable.

[0010] According to an embodiment of the first aspect of the present invention, the transmission wheel assembly includes a first transmission wheel, a second transmission wheel, a third transmission wheel, and a fourth transmission wheel. The first transmission wheel has a first tooth and a second tooth, the second transmission wheel has a third tooth and a fourth tooth, the third transmission wheel has a fifth tooth and a sixth tooth, and the fourth transmission wheel has a seventh tooth.

[0011] According to an embodiment of the first aspect of the present invention, the reduction gear set includes a first gear set, a second gear set, and a third gear set. The first gear set includes a second tooth and a third tooth that mesh with each other. The second gear set includes a fourth tooth and a fifth tooth that mesh with each other. The third gear set includes a sixth tooth and a seventh tooth that mesh with each other.

[0012] According to an embodiment of the first aspect of the present invention, the motor is provided with a fifth transmission wheel, which meshes with the first tooth.

[0013] According to an embodiment of the first aspect of the present invention, the outer diameter of the second tooth is smaller than the outer diameter of the third tooth, the outer diameter of the fourth tooth is smaller than the outer diameter of the fifth tooth, and the outer diameter of the sixth tooth is smaller than the outer diameter of the seventh tooth.

[0014] According to an embodiment of the first aspect of the present invention, the transmission wheel set further includes a connecting wheel, which rotates coaxially with the fourth transmission wheel and meshes with the output wheel.

[0015] According to an embodiment of the first aspect of the present invention, a toothed plate covers the outer periphery of the turntable, and a plurality of connecting teeth are provided on the inner peripheral wall of the toothed plate near the turntable.

[0016] According to an embodiment of the first aspect of the present invention, a connecting frame is provided on the turntable, and a support arm is connected to the connecting frame.

[0017] According to an embodiment of the second aspect of the present invention, an electronic device is provided, including the aforementioned rotating mechanism of the support arm.

[0018] The electronic device according to the second aspect embodiment of the present invention has at least the following beneficial effects:

[0019] In this embodiment, the support arm's rotation mechanism features a fixedly mounted toothed plate on the base plate. A motor, transmission wheel assembly, and output wheel are mounted on the turntable. When the motor rotates, it drives the transmission wheel assembly, which in turn drives the output wheel, thus allowing the turntable and support arm to rotate relative to the base plate, thereby adjusting the support arm's rotation angle. The transmission wheel assembly has multiple pairs of meshing reduction gears, achieving a large reduction ratio. This reduces the angle adjusted per motor start, enabling flexible fine-tuning and improving the user experience.

[0020] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0022] Figure 1 This is a perspective view of the rotating mechanism of the support arm in the first aspect of the present invention.

[0023] Figure 2 An exploded view of the rotating mechanism of the support arm in an embodiment of the first aspect of this utility model;

[0024] Figure 3 for Figure 2 A magnified view of A in the middle;

[0025] Figure 4 This is a perspective view of the transmission wheel assembly in an embodiment of the first aspect of this utility model.

[0026] Figure label:

[0027] Base plate 100; toothed plate 101; connecting tooth 102; mounting cavity 103; washer 104;

[0028] Turntable 110; Connecting frame 111; Support arm 112;

[0029] Drive assembly 120; motor 121; output wheel 122; fifth transmission wheel 123; mounting bracket 124;

[0030] Transmission wheel assembly 130; First transmission wheel 131; First tooth 1311; Second tooth 1312; Second transmission wheel 132; Third tooth 1321; Fourth tooth 1322; Third transmission wheel 133; Fifth tooth 1331; Sixth tooth 1332; Fourth transmission wheel 134; Seventh tooth 1341; Connecting wheel 135; First wheel assembly 136; Second wheel assembly 137; Third wheel assembly 138. Detailed Implementation

[0031] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0032] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0033] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0034] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0035] With the development of technology, personal portable electronic products such as laptops and tablets are widely used in daily life. However, the limited size of portable electronic products often requires stands for support to flexibly adapt to different usage scenarios. Current stands can electrically adjust height and rotation angle; however, the angle adjusted by the motor at one time is relatively large, making fine adjustments difficult in actual use and resulting in a poor user experience.

[0036] To solve the above problems, refer to Figure 1 and Figure 2The rotating mechanism of the support arm according to the first aspect embodiment of this utility model includes a base plate 100 and a turntable 110. The base plate 100 has a mounting cavity 103 and a fixedly mounted toothed plate 101, which is embedded in the mounting cavity 103. The turntable 110 is pivotally connected to the base plate 100 and embedded in the mounting cavity 103, which can improve the space utilization of the base plate 100. It is understood that the bottom wall of the turntable 110 is provided with a washer 104. The washer 104, facing away from the bottom wall of the turntable 110, presses against the inner bottom wall of the mounting cavity 103. The washer 104 is used to prevent the turntable 110 from directly rubbing against the base plate 100 and can reduce the rotational resistance between the turntable 110 and the base plate 100, which is beneficial to improving the transmission efficiency. Understandably, the turntable 110 is equipped with a drive assembly 120 and a support arm 112. The turntable 110 also has a connecting bracket 111 for mounting the support arm 112. The connecting bracket 111 is fixed to the turntable 110, allowing the support arm 112 to rotate with the turntable 110. The drive assembly 120 includes a motor 121, a transmission wheel set 130, and an output wheel 122. The transmission wheel set 130 has multiple pairs of meshing reduction gears. The output wheel 122 meshes with the gear plate 101. The motor 121 drives the transmission wheel set 130 to rotate, thereby driving the output wheel 122 to rotate, thus enabling the turntable 110 and the support arm 112 to rotate relative to the base plate 100. Understandably, by setting multiple pairs of meshing reduction gears, a larger reduction ratio is achieved, reducing the angle adjusted by the motor 121 in a single start, thus enabling flexible fine-tuning and improving the user experience.

[0037] Specifically, refer to Figure 2 The drive assembly 120 includes a mounting bracket 124, which is fixedly mounted on the turntable 110. A space for accommodating the transmission wheel assembly 130 is provided between the bottom wall of the mounting bracket 124 and the top wall of the turntable 110. A motor 121 is fixedly mounted on the mounting bracket 124. A fifth transmission wheel 123 is provided on the output shaft of the motor 121, which passes through the mounting bracket 124, thus placing the fifth transmission wheel 123 at the bottom of the mounting bracket 124.

[0038] It is understood that the transmission gear set 130 includes a first transmission gear 131, a second transmission gear 132, a third transmission gear 133, and a fourth transmission gear 134. The first transmission gear 131 has a first tooth 1311 and a second tooth 1312; the second transmission gear 132 has a third tooth 1321 and a fourth tooth 1322; the third transmission gear 133 has a fifth tooth 1331 and a sixth tooth 1332; and the fourth transmission gear 134 has a seventh tooth 1341. It is also understood that the first tooth 1311, the second tooth 1312, the third tooth 1321, the fourth tooth 1322, the fifth tooth 1331, the sixth tooth 1332, and the seventh tooth 1341 are all gears with connecting teeth 102 on their outer circumference.

[0039] Understandably, the first tooth 1311 and the second tooth 1312 are coaxial and rotate synchronously, with the outer diameter of the first tooth 1311 being larger than that of the second tooth 1312. Similarly, the third tooth 1321 and the fourth tooth 1322 are coaxial and rotate synchronously, with the outer diameter of the third tooth 1321 being larger than that of the fourth tooth 1322. Likewise, the fifth tooth 1331 and the sixth tooth 1332 are coaxial and rotate synchronously, with the outer diameter of the fifth tooth 1331 being larger than that of the sixth tooth 1332. It is understandable that the "outer diameter" of the first tooth 1311 is the maximum outer diameter of the first tooth 1311, which is twice the maximum value of the distance between the outer peripheral wall of the connecting tooth 102 on the outer periphery of the first tooth 1311 and the rotation axis of the first tooth 1311. Similarly, the outer diameters of the second tooth 1312, the third tooth 1321, the fourth tooth 1322, the fifth tooth 1331, the sixth tooth 1332 and the seventh tooth 1341 are their respective maximum outer diameters, which will not be elaborated here.

[0040] It is understandable that the first tooth 1311, the second tooth 1312, the third tooth 1321, the fourth tooth 1322, the fifth tooth 1331, and the sixth tooth 1332 can be fixed by integral molding or by assembly.

[0041] Reference Figure 3 and Figure 4It is understood that the reduction gear set includes a first gear set 136, a second gear set 137, and a third gear set 138. The first gear set 136 includes a second toothed portion 1312 and a third toothed portion 1321 that mesh with each other. It is understood that the outer diameter of the second toothed portion 1312 is smaller than the outer diameter of the third toothed portion 1321, thereby achieving the transmission reduction function, which is beneficial to improving the transmission torque of the motor 121 and reducing the rotation angle adjusted by the motor 121 in a single start. It is understood that the second gear set 137 includes a fourth toothed portion 1322 and a fifth toothed portion 1331 that mesh with each other. The outer diameter of the fourth toothed portion 1322 is smaller than the outer diameter of the fifth toothed portion 1331, thereby achieving the transmission reduction function, which is beneficial to improving the transmission torque of the motor 121 and reducing the rotation angle adjusted by the motor 121 in a single start. Understandably, the third gear set 138 includes a sixth tooth 1332 and a seventh tooth 1341 that mesh with each other. The outer diameter of the sixth tooth 1332 is smaller than the outer diameter of the seventh tooth 1341, thereby achieving a transmission reduction function. This is beneficial for increasing the transmission torque of the motor 121 and reducing the rotation angle adjusted by the motor 121 in a single start, thus improving the flexibility of adjustment. Furthermore, the fifth transmission wheel 123 of the motor 121 meshes with the first tooth 1311. The outer diameter of the fifth transmission wheel 123 is smaller than the outer diameter of the first tooth 1311, thereby achieving a reduction function. Understandably, the three sets of reduction gears enable step-by-step reduction, which is beneficial for increasing the torque of the motor 121 and improving adjustment efficiency. It also reduces the rotation angle adjusted by the motor 121 in a single start, improving the user experience during fine-tuning.

[0042] It is understood that the transmission wheel assembly 130 also includes a connecting wheel 135, which is fixed to the fourth transmission wheel 134. The connecting wheel 135 and the fourth transmission wheel 134 are coaxial and rotate synchronously. The connecting wheel 135 meshes with the output wheel 122, thereby realizing the power transmission between the fourth transmission wheel 134 and the output wheel 122. Furthermore, the outer diameter of the connecting wheel 135 is smaller than the outer diameter of the output wheel 122, thus achieving a speed reduction function. It is understood that the toothed plate 101 has connecting teeth 102 on its inner circumferential wall near the turntable 110. The outer diameter of the output wheel 122 is smaller than the inner diameter of the toothed plate 101, enabling a speed reduction function. It is understood that the inner diameter of the toothed plate 101 is the minimum inner diameter of its inner circumferential wall, which is the minimum value of twice the distance between the connecting teeth 102 on the toothed plate 101 and the rotation axis of the turntable 110.

[0043] The electronic device according to the second aspect of this utility model includes the aforementioned rotating mechanism of the support arm. It is understood that the electronic device incorporates all the technical features of the rotating mechanism of the support arm, and therefore the electronic device possesses at least all the beneficial effects of the rotating mechanism of the support arm.

[0044] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A rotating mechanism for a support arm, characterized in that, include: The base plate is equipped with a toothed plate for fixed installation; A turntable is pivotally connected to the base plate. The turntable is equipped with a drive assembly and a support arm. The drive assembly includes a motor, a transmission wheel set, and an output wheel. The transmission wheel set has multiple pairs of meshing reduction gear sets. The output wheel meshes with the toothed plate. The motor can drive the transmission wheel set to rotate, thereby driving the output wheel to rotate, thus realizing the rotation of the turntable and the support arm relative to the base plate.

2. The rotating mechanism of the support arm according to claim 1, characterized in that, The drive assembly includes a mounting frame, which is fixedly mounted on the turntable. The motor is fixedly mounted on the mounting frame, and the transmission wheel set is located between the mounting frame and the turntable.

3. The rotating mechanism of the support arm according to claim 1, characterized in that, The transmission wheel assembly includes a first transmission wheel, a second transmission wheel, a third transmission wheel, and a fourth transmission wheel. The first transmission wheel has a first tooth and a second tooth, the second transmission wheel has a third tooth and a fourth tooth, the third transmission wheel has a fifth tooth and a sixth tooth, and the fourth transmission wheel has a seventh tooth.

4. The rotating mechanism of the support arm according to claim 3, characterized in that, The reduction gear set includes a first gear set, a second gear set, and a third gear set. The first gear set includes a second tooth and a third tooth that mesh with each other. The second gear set includes a fourth tooth and a fifth tooth that mesh with each other. The third gear set includes a sixth tooth and a seventh tooth that mesh with each other.

5. The rotating mechanism of the support arm according to claim 3, characterized in that, The motor is provided with a fifth transmission wheel, which meshes with the first toothed part.

6. The rotating mechanism of the support arm according to claim 3, characterized in that, The outer diameter of the second tooth is smaller than that of the third tooth, the outer diameter of the fourth tooth is smaller than that of the fifth tooth, and the outer diameter of the sixth tooth is smaller than that of the seventh tooth.

7. The rotating mechanism of the support arm according to claim 3, characterized in that, The transmission wheel assembly also includes a connecting wheel, which rotates coaxially with the fourth transmission wheel and meshes with the output wheel.

8. The rotating mechanism of the support arm according to claim 1, characterized in that, The toothed plate covers the outer periphery of the turntable, and a plurality of connecting teeth are provided on the inner peripheral wall of the toothed plate near the turntable.

9. The rotating mechanism of the support arm according to claim 1, characterized in that, The turntable is provided with a connecting frame, and the support arm is connected to the connecting frame.

10. An electronic device, characterized in that, It includes the rotating mechanism of the arm as described in any one of claims 1 to 9.

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