Rotating shaft structure and smart wearable device

Abstract

The utility model discloses a kind of rotating shaft structure and intelligent wearable equipment, including stator cavity, rotor and axle stem;The rotor is rotatably installed in the inside of the stator cavity, and the rotor outer surface is provided with convex hull;The stator cavity inner wall is provided with at least two self-locking grooves matched with the convex hull, so that the rotor rotates to first position and second position and is relatively fixed when not subjected to external force;The axle stem penetrates the stator cavity, and is fixedly connected with the rotor, for driving the rotor relative to the stator cavity rotation.The utility model is set as above, so that the adaptation equipment miniaturization and light weight demand can also improve the comfort and stability when user wears.

Description

Technical Field

[0001] This utility model relates to the field of consumer electronics devices, and in particular to a hinge structure and a smart wearable device. Background Technology

[0002] With the rapid development of smart wearable devices in the consumer electronics field, smart sports glasses have become the choice of more and more users due to their portability and versatility. This trend has driven the industry to place higher demands on the core components of smart sports glasses, such as the hinge. As a key structure connecting the frame and temples, the hinge not only needs to adapt to the trend of miniaturization and lightweighting of devices, but also needs to meet users' core needs in terms of wearing comfort and stability.

[0003] Therefore, a rotating shaft structure and a smart wearable device are proposed to meet the above application requirements. Utility Model Content

[0004] The purpose of this invention is to provide a hinge structure and a smart wearable device that can meet the needs of device miniaturization and lightweighting, while also improving the comfort and stability of the user when wearing it.

[0005] To solve the above-mentioned technical problems, this utility model provides a rotating shaft structure, including a stator cavity, a rotor, and a shaft. The rotor is rotatably mounted inside the stator cavity, and the outer surface of the rotor is provided with a protrusion. The inner wall of the stator cavity is provided with at least two self-locking grooves that match the convex bulge, so that the rotor remains relatively fixed when it rotates to the first position and the second position and is not subjected to external force; The shaft passes through the stator cavity and is fixedly connected to the rotor, and is used to drive the rotor to rotate relative to the stator cavity.

[0006] Furthermore, it also includes a torsion spring sleeved on the outside of the shaft; The torsion spring has a fixed end and a movable end; The fixed end is fixedly connected to the inner wall of the stator cavity, and the movable end is used to abut or separate from the rotor; When the rotor rotates to the third position, the torsion spring provides a restoring force to the rotor.

[0007] Furthermore, the outer wall of the rotor is provided with an arc-shaped groove, and the movable end extends into the arc-shaped groove, so that when the rotor rotates relative to the stator cavity, a gap or abutment is formed between the movable end and the inner wall of the arc-shaped groove.

[0008] Furthermore, the first position, the second position, and the third position are sequentially arranged along the rotation direction of the rotor; Wherein, the first position is the initial position, the angle between the second position and the first position is 90°, and the angle between the third position and the first position is greater than 90° and less than 102°.

[0009] Furthermore, the stator cavity includes a detachably connected and relatively fixed housing and a top cover; The two self-locking grooves are provided on the inner wall of the top cover.

[0010] Furthermore, the inner wall of the top cover is provided with a limiting protrusion for limiting the rotor, so that the rotor rotates relative to the stator cavity within a preset angle range.

[0011] Furthermore, the housing has a through hole in the middle for mounting the FPC board.

[0012] Furthermore, both the convex hull and the self-locking groove are configured as arc-shaped structures, and a guide slope is provided on one side of the self-locking groove.

[0013] Furthermore, the bottom outer wall of the shaft is provided with a flat cut surface, and the top of the shaft is provided with an embossed structure; The rotor has a groove at its bottom that matches the bottom end of the shaft for interference fit with the shaft.

[0014] On the other hand, this utility model also proposes a smart wearable device, including the rotating shaft structure described in the above embodiments; The smart wearable device is smart glasses.

[0015] Compared with the prior art, the present invention has at least the following beneficial effects: By setting a shaft fixedly connected to the rotor and a protrusion on the outer surface of the rotor, and setting at least two self-locking grooves matching the protrusion on the inner wall of the stator cavity, when the shaft drives the rotor to rotate to the first position and the second position and is not subjected to external force, the two can be relatively fixed by means of the matching of the protrusion and the self-locking groove, that is, the self-locking function is achieved. This effectively avoids the situation where the rotor is in a critical position (such as the core state position when the smart wearable device is in use or stored) and the smart wearable device is damaged by collision with external objects.

[0016] Furthermore, by setting a torsion spring and an arc-shaped groove on the outer wall of the rotor that abuts against or separates from the movable end of the torsion spring, when the rotor rotates to the third position under the drive of the shaft, the movable end abuts against the arc-shaped groove to provide a reset spring force, thereby driving the rotor to rotate in the opposite direction, and thus providing a pre-tight clamping force to the user wearing the smart wearable device, so as to ensure that the smart wearable device will not fall off during use.

[0017] Furthermore, by providing flat cut surfaces and embossed structures on the bottom outer wall and top of the shaft respectively, and by providing matching insertion grooves on the bottom of the rotor, the shaft and rotor can be interference-fitted, and the shaft can also be interference-fitted to the frame / temple of the smart wearable device through the embossed structure. Thus, when the entire shaft structure is installed in the smart wearable device, only the stator cavity and the temple / frame need to be locked and fixed by locking components, which effectively reduces the number of locking components required, thereby effectively meeting the lightweight application requirements of smart wearable devices. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the rotating shaft structure in one embodiment of the present invention; Figure 2 This is an exploded view of the rotating shaft structure in one embodiment of the present invention; Figure 3 This is an exploded view of the top cover and rotor of the rotating shaft structure in one embodiment of the present invention; Figure 4 This is a partial structural diagram of the rotor of the rotating shaft structure in one embodiment of the present invention when it rotates to the first position; Figure 5 This is a partial structural diagram of the rotor of the rotating shaft structure in one embodiment of the present invention when it rotates to the second position; Figure 6 This is a partial structural diagram of the rotor of the rotating shaft structure in one embodiment of the present invention when it rotates to the third position; Figure 7 This is an exploded view of the stator cavity of the rotating shaft structure in one embodiment of the present invention.

[0019] Reference numerals: 1. Stator cavity; 11. Housing; 12. Top cover; 2. Rotor; 21. Protrusion; 22. Arc-shaped slot; 23. Flat section; 3. Shaft; 31. Flat section; 32. Embossed structure; 4. Self-locking groove; 5. Torsion spring; 51. Fixed end; 52. Movable end; 6. Limiting protrusion; 7. Wire hole; 8. FPC board. Detailed Implementation

[0020] The rotating shaft structure and smart wearable device of this utility model will be described in more detail below with reference to the schematic diagrams, which illustrate preferred embodiments of this utility model. It should be understood that those skilled in the art can modify the utility model described herein while still achieving the advantageous effects of this utility model. Therefore, the following description should be understood as being of general knowledge to those skilled in the art and is not intended to limit this utility model.

[0021] Furthermore, based on the teachings of this specification, those skilled in the art can form new technical solutions through cross-combination of different implementation methods without creating technical contradictions. Such variations should all be considered to fall within the protection scope of this patent.

[0022] The present invention will be described in more detail below by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become clearer from the following description. It should be noted that the drawings are in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of the present invention.

[0023] Example 1 like Figures 1 to 7 As shown in the figure, this utility model embodiment proposes a rotating shaft structure, including a stator cavity 1, a rotor 2, and a shaft 3.

[0024] The rotor 2 is rotatably mounted inside the stator cavity 1, and a protrusion 21 is provided on the outer surface of the rotor 2. The internal mounting method of the rotor 2 can compress the volume of the entire shaft structure to meet the requirements of miniaturization, and the protrusion 21 is used to cooperate with the stator cavity 1 to achieve a self-locking function in key positions (such as when wearing or storing).

[0025] Specifically, the inner wall of the stator cavity 1 is provided with at least two self-locking grooves 4 that match the convex 21, so that the rotor 2 remains relatively fixed when it rotates to the first position and the second position and is not subjected to external force.

[0026] It should be noted that the first position is the position of rotor 2 when the angle between the temple and the frame of the smart wearable device is 0°, while the second position is the position of rotor 2 when the angle between the temple and the frame of the smart wearable device is 90°. This ensures that rotor 2 does not shake when there is no external force, so as to meet the user's needs for not shifting when wearing and maintaining stability when storing, and effectively avoid the situation where rotor 2 shakes at key positions, causing the smart wearable device to collide with and be damaged by external objects.

[0027] Meanwhile, the fit between the convex bulge 21 and the self-locking groove 4 only exerts force at key positions, avoiding the problem of rapid wear of components caused by the rotor 2 and stator cavity 1 in the shaft structure being self-locked by friction throughout the entire process (such as self-locking achieved by friction damping), thus extending the service life of the shaft structure.

[0028] It should also be noted that both the convex 21 and the self-locking groove 4 are designed as arc-shaped structures, and a guide slope is provided on one side of the self-locking groove 4. By designing the convex 21 and the self-locking groove 4 as arc-shaped structures, wear caused by relative rotation between the two is reduced. Furthermore, by providing a guide slope on one side of the self-locking groove 4, the convex 21 is guided to slide smoothly into the self-locking groove 4, avoiding significant resistance during rotation and preventing jamming, thus improving the user experience.

[0029] In this embodiment, the shaft 3 passes through the stator cavity 1 and is fixedly connected to the rotor 2, and is used to drive the rotor 2 to rotate relative to the stator cavity 1.

[0030] In a specific example, the bottom outer wall of the shaft 3 is provided with a flat cut surface 31, and the top of the shaft 3 is provided with an embossed structure 32.

[0031] The rotor 2 has a groove 23 at its bottom that matches the bottom end of the shaft 3, for interference fit with the shaft 3.

[0032] By matching the bottom flat surface 31 of the shaft 3 with the insertion slot 23 of the rotor 2, the shaft 3 and the rotor 2 are always fixed in the direction around their axis, thereby improving the stability when the shaft 3 drives the rotor 2 to rotate, that is, there will be no relative rotation between the two. Furthermore, the interference fit ensures that the shaft 3 and the rotor 2 are tightly connected, effectively avoiding problems such as easy loosening of screw connections and complex assembly. Since no additional fasteners are required during the connection process, the weight of the shaft structure and the assembly steps can be reduced, meeting the production requirements of lightweight and efficient assembly.

[0033] In particular, by setting an embossed structure 32 at the top of the shaft 3 to increase its friction with the plastic parts of the temple / frame of the smart wearable device, and fixing it by interference fit, the number of fasteners is further reduced, thereby achieving the function of lightweighting.

[0034] It should be noted that in the existing technology, the temples / frames of smart wearable devices are mostly made of plastic materials with a certain degree of elasticity and plasticity (such as ABS, PC, PA+GF, etc.). Therefore, the embossed structure 32 can achieve interference fit between the two through physical extrusion during assembly and elastic deformation and plastic filling of the plastic material, so as to achieve the purpose of fixing without additional fasteners.

[0035] In other embodiments, in order to provide preload force when the smart wearable device is worn to ensure that it will not fall off during use and to improve stability during use, a torsion spring 5 is also added.

[0036] Specifically, the rotating shaft structure also includes a torsion spring 5 sleeved outside the shaft 3, that is, the torsion spring 5 and the shaft 3 do not contact each other and do not interfere with each other.

[0037] The torsion spring 5 has a fixed end 51 and a movable end 52.

[0038] The fixed end 51 is fixedly connected to the inner wall of the stator cavity 1, and the movable end 52 is used to abut or separate from the rotor 2. It should be noted that when the rotor 2 rotates to the third position, the torsion spring 5 provides a reset force to the rotor 2.

[0039] It should also be noted that the first position, the second position, and the third position are arranged sequentially along the rotation direction of the rotor 2.

[0040] Wherein, the first position is the initial position (i.e., the position of rotor 2 when the smart wearable device is in the storage state and the angle between the temple and the frame is 0°), the angle between the second position and the first position is 90°, and the angle between the third position and the first position is greater than 90° and less than 102°.

[0041] Since the angle between the temple and the frame of a smart wearable device is greater than 90° when the device is worn, the function of providing pre-tight clamping force when the user wears the smart wearable device is achieved by limiting the angle between the third position and the first position.

[0042] To ensure that the torsion spring 5 provides a restoring force to the rotor 2 only in a specific position (i.e., the third position), and that there is no interaction force between the torsion spring 5 and the rotor 2 in other positions, so as to prevent interference with the self-locking between the rotor 2 and the stator cavity 1, the connection method between the rotor 2 and the torsion spring 5 is further defined here.

[0043] Specifically, the outer wall of the rotor 2 is provided with an arc-shaped groove 22, and the movable end 52 extends into the arc-shaped groove 22, so that when the rotor 2 rotates relative to the stator cavity 1, a gap or abutment is formed between the movable end 52 and the inner wall of the arc-shaped groove 22.

[0044] like Figure 4 and Figure 5 As shown, when the rotor 2 rotates to the first position and the second position, the movable end 52 of the torsion spring 5 is always located inside the arc-shaped slot 22, that is, there is a gap between it and the inner wall of the arc-shaped slot 22, so there is no interaction force between the two, thus ensuring that the setting of the torsion spring 5 will not interfere with the relative fixation of the rotor 2 and the stator cavity 1 in the first position and the second position.

[0045] like Figure 6As shown, when the rotor 2 rotates to the third position, the movable end 52 of the torsion spring 5 will abut against and press against one side wall of the arc-shaped slot 22. In turn, the torsion spring 5 will provide a reset spring force opposite to the rotation direction of the rotor 2, so that the temple of the smart wearable device provides a pre-tight clamping force to the user's head, thereby ensuring that the smart wearable device will not fall off during use and improving the stability of the smart wearable device when worn.

[0046] like Figure 7 As shown, in other embodiments, the stator cavity 1 is further defined to facilitate the machining of the self-locking groove 4 and the installation of the torsion spring 5.

[0047] Specifically, the stator cavity 1 includes a detachably connected and relatively fixed housing 11 and a top cover 12.

[0048] Two self-locking grooves 4 are provided on the inner wall of the top cover 12. The stator cavity 1 is divided into two parts, the housing 11 and the top cover 12, and the self-locking grooves 4 are provided on the top cover 12 to facilitate the forming and processing of the self-locking grooves 4.

[0049] In addition, a positioning hole is provided on the top cover 12, and the fixed end 51 of the torsion spring 5 is fixedly inserted into the positioning hole.

[0050] In a further embodiment, the inner wall of the top cover 12 is provided with a limiting protrusion 6 for limiting the rotor 2, so that the rotor 2 rotates relative to the stator cavity 1 within a preset angle range, so that the rotation range of the rotor 2 is between 0° and 102°, preventing damage caused by excessive rotation between the temple and the frame of the smart wearable device.

[0051] In other embodiments, the housing 11 is provided with a through hole 7 for mounting the FPC board 8 in the middle, so as to meet the installation requirements of the FPC board 8 of the smart wearable device.

[0052] Example 2 This embodiment proposes a smart wearable device based on Embodiment 1, including the rotating shaft structure described in Embodiment 1, and the smart wearable device is smart glasses.

[0053] It should be noted that the assembly can be completed by interlocking the two ends of the frame / temple of the smart glasses with the shaft 3 and by locking the temple / frame of the smart glasses with the stator cavity 1 with locking components (such as screws). Since the shaft 3 does not need to be connected and locked with locking components in this process, the number of locking components required is effectively reduced, thereby effectively meeting the application requirements of lightweight smart wearable devices.

[0054] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A rotating shaft structure, characterized in that, Includes the stator cavity, rotor, and shaft; The rotor is rotatably mounted inside the stator cavity, and the outer surface of the rotor is provided with a protrusion. The inner wall of the stator cavity is provided with at least two self-locking grooves that match the convex bulge, so that the rotor remains relatively fixed when it is rotated to the first position and the second position and is not subjected to external force; The shaft passes through the stator cavity and is fixedly connected to the rotor, and is used to drive the rotor to rotate relative to the stator cavity.

2. The rotating shaft structure as described in claim 1, characterized in that, It also includes a torsion spring sleeved on the outside of the shaft; The torsion spring has a fixed end and a movable end; The fixed end is fixedly connected to the inner wall of the stator cavity, and the movable end is used to abut or separate from the rotor; When the rotor rotates to the third position, the torsion spring provides a restoring force to the rotor.

3. The rotating shaft structure as described in claim 2, characterized in that, The outer wall of the rotor is provided with an arc-shaped groove, and the movable end extends into the arc-shaped groove, so that when the rotor rotates relative to the stator cavity, a gap or abutment is formed between the movable end and the inner wall of the arc-shaped groove.

4. The rotating shaft structure as described in claim 2, characterized in that, The first position, the second position, and the third position are arranged sequentially along the rotation direction of the rotor; Wherein, the first position is the initial position, the angle between the second position and the first position is 90°, and the angle between the third position and the first position is greater than 90° and less than 102°.

5. The rotating shaft structure as described in claim 1, characterized in that, The stator cavity includes a detachably connected and relatively fixed housing and a top cover; The two self-locking grooves are provided on the inner wall of the top cover.

6. The rotating shaft structure as described in claim 5, characterized in that, The inner wall of the top cover is provided with a limiting protrusion to limit the rotor, so that the rotor rotates relative to the stator cavity within a preset angle range.

7. The rotating shaft structure as described in claim 5, characterized in that, The housing has a wire hole in the middle for mounting the FPC board.

8. The rotating shaft structure as described in claim 1, characterized in that, Both the convex hull and the self-locking groove are configured as arc-shaped structures, and a guide slope is provided on one side of the self-locking groove.

9. The rotating shaft structure as described in claim 1, characterized in that, The bottom outer wall of the shaft has a flat cut surface, and the top of the shaft has an embossed structure. The rotor has a groove at its bottom that matches the bottom end of the shaft for interference fit with the shaft.

10. A smart wearable device, characterized in that, Includes the shaft structure as described in any one of claims 1-9; The smart wearable device is smart glasses.

Images