Adjustable rotating shaft for AR glasses holder

Abstract

This utility model discloses an adjustment shaft for an AR glasses frame, including a frame-L, a frame-R, a rotating plate-L, and a rotating plate-R. This utility model employs an interference fit structure between a sleeve and a raised ring, along with a mounting groove within the connecting cylinder, ensuring stable and wobbly trajectories for the rotating plates-L and-R as they rotate around the pin shaft. The meshing and rolling of the gear and the internal gear ring replaces traditional sliding friction, significantly reducing starting torque and movement resistance, making the adjustment process smoother and more fluid, with a delicate feel, avoiding the jamming or slippage issues common in traditional friction plate structures. By setting a gear on the pin shaft and meshing with the internal gear ring within the rotating cylinder ring, when the user adjusts the temple extension angle, the gear rolls along the internal gear ring, generating a continuous and stable frictional damping torque. This damping torque can be precisely designed according to structural parameters, allowing the temples to smoothly extend and reliably position at any angle, achieving stepless adjustment and significantly improving wearing comfort and usage flexibility.

Description

Technical Field

[0001] This utility model relates to the field of eyeglasses frame technology, and more specifically, to an adjustment shaft for an AR eyeglasses frame. Background Technology

[0002] With the rapid development of augmented reality (AR) technology, AR glasses, as important wearable smart devices, have been widely used in fields such as industrial maintenance, medical assistance, education and training, and consumer entertainment. In the process of improving user experience, the ergonomic design and structural reliability of AR glasses are particularly important, especially the opening and closing adjustment mechanism of the temples, which directly affects the comfort, stability, and ease of operation.

[0003] Currently, most common AR glasses adopt a hinged temple structure, which uses a simple pivot to open and close the temples. Traditional pivot structures generally have problems such as uneven adjustment damping, inaccurate positioning, and easy loosening or wear. Although some products introduce springs or friction washers to provide damping, they often have defects such as stiff feel, unsmooth adjustment, and significant damping decay after long-term use, making it difficult to achieve stable positioning of the temples at any angle. Utility Model Content

[0004] This utility model addresses the technical problems existing in the prior art by providing an adjustment hinge for AR glasses brackets. It solves the problems of common AR glasses that mostly use hinged temple structures, which use simple hinges to open and close the temples. However, these hinges result in stiff opening and closing, unsmooth adjustment, and significant damping attenuation after long-term use, making it difficult to achieve stable positioning of the temples at any angle.

[0005] To achieve the above objectives, this utility model provides an adjusting shaft for an AR glasses bracket, comprising a bracket-L, a bracket-R, a rotating plate-L, and a rotating plate-R. The rotating plate-L and rotating plate-R are each fixedly connected to a connecting cylinder. The two connecting cylinders are respectively disposed in mounting openings provided in the bracket-L and bracket-R. Each of the two connecting cylinders contains a sleeve, and each of the sleeves is fixedly connected to a protruding ring. A pin is provided in both the sleeve and the protruding ring. The connecting cylinder has a mounting groove that matches the protruding ring. The rotating plate-L and rotating plate-R can rotate relative to the bracket-L and bracket-R around the pin to adjust the unfolding angle of the temples on both sides of the AR glasses.

[0006] Preferably, both bracket-L and bracket-R have two symmetrical mounting holes, the two ends of the pin are fixed in the mounting holes of bracket-L and bracket-R, and the sleeve is sleeved on the pin.

[0007] Preferably, both bracket-L and bracket-R are rotatably connected to a rotating ring, and the pin is fixedly connected to a gear. The gear is disposed in the rotating ring, and the inner circumference of the rotating ring is provided with an internal gear ring. The gear meshes with the internal gear ring. When the rotating plate rotates, it drives the pin and the gear to roll or slide along the internal gear ring, generating a preset damping torque to achieve adjustment and positioning.

[0008] Preferably, the bracket-L, bracket-R, rotating plate-L, rotating plate-R, connecting cylinder and rotating cylinder ring are all made of titanium alloy, the pin and gear are all made of stainless steel, and the sleeve and protruding ring are all made of wear-resistant plastic.

[0009] Preferably, the surfaces of the bracket-L, bracket-R, rotating plate-L, rotating plate-R, connecting cylinder and rotating cylinder ring are all sandblasted and coated, and the pin and gear are all magnetically ground.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] 1. The sleeve and the raised ring are fitted with an interference fit structure, which, together with the mounting groove in the connecting cylinder, ensures that the rotating plate-L and rotating plate-R have a stable trajectory and no shaking when rotating around the pin shaft.

[0012] 2. The meshing and rolling of gears and internal gear rings replaces traditional sliding friction, significantly reducing starting torque and motion resistance, making the adjustment process smoother and more fluid, with a delicate feel, and avoiding the jamming or slippage that is prone to occur in traditional friction plate structures.

[0013] 3. By setting a gear on the pin shaft and meshing with the inner gear ring in the rotating cylinder ring, when the user adjusts the opening angle of the temple, the gear rolls along the inner gear ring to generate a continuous and stable frictional damping torque. This damping torque can be precisely designed according to the structural parameters, so that the temple can be smoothly opened and reliably positioned at any angle, realizing the stepless adjustment function and significantly improving wearing comfort and usage flexibility. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the connection structure between the bracket-L and the rotating plate-L in this utility model;

[0015] Figure 2 This is a schematic diagram of the connection structure between the bracket-R and the rotating plate-R in this utility model;

[0016] Figure 3 This is an exploded view of the bracket-L and the rotating plate-L in this utility model;

[0017] Figure 4 This is an exploded view of the bracket-R and the rotating plate-R in this utility model;

[0018] Figure 5This is a diagram showing the state after rotation in this utility model.

[0019] The meanings of the labels in the diagram are as follows:

[0020] 1. Bracket-L; 2. Bracket-R; 3. Rotating plate-L; 4. Rotating plate-R; 5. Connecting cylinder; 6. Pin; 7. Rotating cylinder ring; 8. Sleeve; 9. Gear; 10. Raised ring. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1-5 This embodiment provides an adjustment shaft for an AR glasses holder, including a holder-L1, a holder-R2, a rotating plate-L3, and a rotating plate-R4. Considering that traditional AR glasses temples often use hinged temple structures, which suffer from drawbacks such as stiff opening and closing, unsmooth adjustment, and significant damping attenuation after long-term use, making it difficult to achieve stable positioning of the temples at any angle, both rotating plates-L3 and-R4 are fixedly connected to connecting cylinders-L3 and R4. The two connecting cylinders-L3 and R4 are respectively positioned in the mounting openings of the holder-L1 and holder-R2. Each connecting cylinder-L3 contains a sleeve-8, and each sleeve-8 is fixedly connected to a protruding ring-10. A pin-shaft-6 is shared between the sleeve-L3 and the protruding ring-10. The connecting cylinders-L3 and R4 are provided with... The mounting grooves that match the raised ring 10 allow the rotating plates L3 and R4 to rotate relative to the brackets L1 and R2 around the pin 6, thereby adjusting the unfolding angle of the temples on both sides of the AR glasses. The brackets L1 and R2 each have two symmetrical mounting holes. The two ends of the pin 6 are fixed in the mounting holes of the brackets L1 and R2. The sleeve 8 is fitted onto the pin 6. The brackets L1 and R2 are rotatably connected to the rotating ring 7. The pin 6 is fixedly connected to the gear 9, which is located in the rotating ring 7. The rotating ring 7 has an internal gear ring on its inner circumference. The gear 9 meshes with the internal gear ring. When the rotating plates rotate, they drive the pin and gear to roll or slide along the internal gear ring, generating a preset damping torque to achieve adjustment and positioning.

[0023] In summary, the improvement of this embodiment lies in:

[0024] The interference fit structure of sleeve 8 and raised ring 10, combined with the mounting groove in the connecting sleeve 5, ensures that the rotating plate-L3 and rotating plate-R4 have a stable trajectory without shaking when rotating around the pin 6. The meshing and rolling of gear 10 and internal gear ring replaces the traditional sliding friction, which greatly reduces the starting torque and movement resistance, making the adjustment process smoother and more fluid, with a delicate feel, and avoiding the jamming or slippage that is easy to occur in the traditional friction plate structure. By setting gear 10 on pin 6 and meshing with the internal gear ring in the rotating sleeve ring 9, when the user adjusts the temple opening angle, gear 9 rolls along the internal gear ring to generate a continuous and stable friction damping torque. This damping torque can be precisely designed according to the structural parameters, so that the temple can be smoothly opened and reliably positioned at any angle, realizing the stepless adjustment function and significantly improving wearing comfort and usage flexibility.

[0025] Based on the above, other structures also need to be disclosed in detail, such as:

[0026] Please see Figures 1-5 The bracket-L1, bracket-R2, rotating plate-L3, rotating plate-R4, connecting cylinder 5 and rotating cylinder ring 7 are all made of titanium alloy, specifically TC4 titanium alloy. The pin 6 and gear 9 are both made of stainless steel, specifically SUS304 stainless steel. The sleeve 8 and raised ring 10 are both made of wear-resistant plastic, specifically POM wear-resistant plastic.

[0027] Please see Figures 1-5 To improve the performance of the bracket, the surfaces of bracket-L1, bracket-R2, rotating plate-L3, rotating plate-R4, connecting cylinder 5 and rotating cylinder ring 7 are all sandblasted and coated. Sandblasting significantly improves surface adhesion, and coating greatly improves wear resistance and scratch resistance. Pin 6 and gear 9 are all magnetically ground, which improves smoothness.

[0028] In summary, the working principle of this solution is as follows:

[0029] When the user unfolds or folds the temples of the AR glasses, the rotating plate-L3 and the rotating plate-R4 drive the connecting cylinder 5 to rotate around the pin 6. The protruding ring 10 is set in the mounting groove of the connecting cylinder 5, so that the sleeve 8 and the protruding ring 10 are installed in the connecting cylinder 5 with an interference fit to meet the force requirements during rotation. The protruding ring 10 moves circumferentially along the mounting groove of the connecting cylinder 5, providing a stable rotation trajectory. When the rotating plate rotates, the gear 9 fixed to the pin 6 rotates synchronously and meshes with the inner gear ring of the rotating cylinder ring 7. The gear 9 rolls along the inner gear ring to generate continuous frictional resistance, forming a preset damping torque. When the rotation angle reaches the target position, the meshing self-locking effect of the gear 9 and the inner gear ring achieves stepless positioning, and the temples maintain a stable unfolding angle.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An adjustment shaft for an AR glasses holder, comprising a holder-L (1), a holder-R (2), a rotating plate-L (3), and a rotating plate-R (4), characterized in that: The rotating plate-L (3) and rotating plate-R (4) are both fixedly connected to a connecting cylinder (5). The two connecting cylinders (5) are respectively set in the mounting holes opened in the bracket-L (1) and bracket-R (2). Each of the two connecting cylinders (5) is provided with a sleeve (8). Each of the two sleeves (8) is fixedly connected with a protruding ring (10). The sleeve (8) and the protruding ring (10) are both provided with a pin (6). The connecting cylinder (5) is provided with a mounting groove that matches the protruding ring (10). The rotating plate-L (3) and the rotating plate-R (4) can rotate around the pin (6) relative to the bracket-L (1) and bracket-R (2) to adjust the unfolding angle of the temples on both sides of the AR glasses.

2. The adjustment swivel for an AR glasses holder according to claim 1, characterized in that: The bracket-L (1) and bracket-R (2) each have two symmetrical mounting holes. The pin (6) is fixed at both ends in the mounting holes of the bracket-L (1) and bracket-R (2). The sleeve (8) is sleeved on the pin (6). 3.The adjustable rotation axis for AR glasses holder according to claim 1, characterized in that: Both bracket-L (1) and bracket-R (2) are rotatably connected to a rotating ring (7). The pin (6) is fixedly connected to a gear (9). The gear (9) is set in the rotating ring (7). The inner circumference of the rotating ring (7) is provided with an internal gear ring. The gear (9) meshes with the internal gear ring. When the rotating plate rotates, it drives the pin and the gear to roll or slide along the internal gear ring, generating a preset damping torque to achieve adjustment and positioning.

4. The adjustment swivel for an AR glasses holder according to claim 1, characterized in that: The bracket-L (1), bracket-R (2), rotating plate-L (3), rotating plate-R (4), connecting cylinder (5) and rotating cylinder ring (7) are all made of titanium alloy, the pin (6) and gear (9) are all made of stainless steel, and the sleeve (8) and protruding ring (10) are all made of wear-resistant plastic. 5.The adjustable rotation axis for AR glasses holder according to claim 1, characterized in that: The surfaces of the bracket-L (1), bracket-R (2), rotating plate-L (3), rotating plate-R (4), connecting cylinder (5) and rotating cylinder ring (7) are all sandblasted and coated, and the pin (6) and gear (9) are all magnetically ground.

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