IPD adjusting structure of VR glasses
Patent Information
- Application Number
- CN202522766234.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-26
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-12-26
AI Technical Summary
Existing VR glasses' IPD adjustment solutions mostly use dual-motor drives, resulting in high production costs, increased weight, and complex control systems.
A single motor drive mechanism is adopted, and the synchronous adjustment of the left and right lens barrels is achieved through a synchronous drive mechanism. The parallelism and angle adjustment of the lens barrels are achieved by using bevel gears and lead screws.
This reduces the production cost and weight of VR glasses, while simplifying the control system and enabling synchronous adjustment of the lens barrel.
Smart Images
Figure CN224934256U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of VR glasses, and more specifically, to an IPD adjustment structure for VR glasses. Background Technology
[0002] Currently, most VR headsets on the market use a dual-motor IPD adjustment solution, where one motor drives one lens barrel to move, thereby achieving IPD adjustment. When the two lens barrels are parallel, a single-motor component solution can be used; for VR headsets with angled left and right lens barrels, a dual-motor solution is mostly used.
[0003] Using dual-motor drive not only increases production costs, but also increases the overall weight of VR glasses and assembly difficulty. Furthermore, during synchronous adjustment, the controller needs to control both motors separately, making the entire control system structure complex.
[0004] Therefore, it is necessary to provide a single-motor integrated solution that can meet the requirements of the lens barrel having angle requirements. Utility Model Content
[0005] The main purpose of this application is to provide an IPD adjustment structure for VR glasses, which achieves synchronous adjustment of the left and right lens barrels through a single motor.
[0006] To achieve the above objectives, in a first aspect, this application provides an IPD adjustment structure for VR glasses, including a module bracket, a left lens barrel and a right lens barrel slidably disposed on the module bracket, and a synchronous drive mechanism disposed on the module bracket for driving the left lens barrel and the right lens barrel to slide synchronously. The synchronous drive mechanism includes a drive motor, a left lead screw and a right lead screw rotatably disposed on the module bracket, and a transmission mechanism disposed between the left lead screw and the right lead screw and the drive motor. A threaded sleeve cooperating with the left lead screw is connected to the left lens barrel, and a threaded sleeve cooperating with the right lead screw is connected to the right lens barrel.
[0007] Optionally, the left lens barrel includes a left lens barrel body and a left drive block fixedly connected to the left lens barrel body, and the right lens barrel includes a right lens barrel body and a right drive block fixedly connected to the right lens barrel body, with the threaded sleeve respectively disposed on the left drive block and the right drive block.
[0008] Optionally, both the left and right lens barrel bodies are provided with connecting holes, and the left and right drive blocks are respectively provided with connecting portions that cooperate with the connecting holes.
[0009] Optionally, the transmission mechanism includes a first bevel gear fixedly mounted on the motor shaft of the drive motor, a second bevel gear and a third bevel gear fixedly mounted on the left lead screw and the right lead screw respectively, wherein the second bevel gear and the third bevel gear mesh with the first bevel gear respectively.
[0010] Optionally, bearings are provided between one end of the left lead screw and the second bevel gear, and between one end of the right lead screw and the third bevel gear, and flange bearings are provided at the other ends of the left lead screw and the right lead screw.
[0011] Optionally, a motor bracket is fixedly mounted on the module bracket, the drive motor is fixedly mounted on the motor bracket, the left lead screw and the right lead screw are rotatably mounted on the motor bracket, and a first guide mechanism is provided between the motor bracket and the left drive block and the right drive block respectively.
[0012] Optionally, the first guiding mechanism includes a left guide rod and a right guide rod fixedly mounted on the motor bracket. The left drive block has a left guide hole that cooperates with the left guide rod, and the right drive block has a right guide hole that cooperates with the right guide rod.
[0013] Optionally, the drive motor is fixed to the motor bracket by a fixed motor bracket, and there is a receiving cavity between the fixed motor bracket and the motor bracket to accommodate the drive motor. The fixed motor bracket and the motor bracket are fixedly connected by a number of fasteners.
[0014] Optionally, the left lens barrel and the right lens barrel are respectively provided with a second guide mechanism between the module bracket. The second guide mechanism includes an upper pin and a lower pin fixedly disposed on the module bracket. The left lens barrel and the right lens barrel are respectively provided with guide holes that cooperate with the upper pin and the lower pin.
[0015] Optionally, the angle between the left lead screw and the right lead screw is in the range of 0°-60°.
[0016] The present invention provides an IPD adjustment structure for VR glasses. Compared with the prior art, its advantages are that by setting a synchronous drive mechanism, the synchronous adjustment of the left and right lens barrels can be achieved by relying on a single motor, thereby reducing the weight and production cost of VR products. Attached Figure Description
[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application. In the drawings: Figure 1 This is an exploded view of this utility model; Figure 2 This is an exploded view of the drive mechanism and drive motor; Figure 3 This is a schematic diagram showing the connection between the left and right lens barrels and the drive motor; Figure 4 This is a cross-sectional view of the connection between the left and right mirror tubes and the drive motor.
[0018] The components are as follows: 1. Module bracket; 2. Motor bracket; 3. Fixed motor bracket; 4. Drive motor; 5. First bevel gear; 6. Second bevel gear; 7. Third bevel gear; 8. Left lead screw; 9. Right lead screw; 10. Left lens barrel body; 11. Right lens barrel body; 12. Left drive block; 13. Right drive block; 14. Left guide rod; 15. Right guide rod; 16. Bearing; 17. Flange bearing; 18. Upper pin; 19. Lower pin; 20. Screw; 21. Left drive block. Detailed Implementation
[0019] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.
[0020] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.
[0021] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.
[0022] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.
[0023] In addition, the term "multiple" should mean two or more.
[0024] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.
[0025] like Figures 1-4 As shown, an IPD adjustment structure for VR glasses includes a module bracket 1, a left lens barrel and a right lens barrel slidably disposed on the module bracket 1, and a synchronous drive mechanism disposed on the module bracket 1 to drive the left lens barrel and the right lens barrel to slide synchronously. The synchronous drive mechanism includes a drive motor 4, a left lead screw 8 and a right lead screw 9 rotatably disposed on the module bracket 1, and a transmission mechanism disposed between the left lead screw 8 and the right lead screw 9 and the drive motor 4. A threaded sleeve that cooperates with the left lead screw 8 is connected to the left lens barrel, and a threaded sleeve that cooperates with the right lead screw 9 is connected to the right lens barrel.
[0026] The transmission mechanism includes a first bevel gear 5 fixedly mounted on the motor shaft of the drive motor 4, a second bevel gear 6 and a third bevel gear 7 fixedly mounted on the left lead screw 8 and the right lead screw 9 respectively, and the second bevel gear 6 and the third bevel gear 7 respectively mesh with the first bevel gear 5.
[0027] The above structure, namely the bevel gear engagement, not only achieves synchronous transmission control, but more importantly, it can meet the requirements of parallelism and angularity between the left and right lens barrels. Therefore, in this embodiment, the angle range between the left lead screw 8 and the right lead screw 9 is 0°-60°, meaning that the left and right lens barrels can be set in parallel or at an angle.
[0028] For ease of installation, the left lens barrel includes a left lens barrel body 10 and a left drive block 11 fixedly connected to the left lens barrel body 10. The right lens barrel includes a right lens barrel body 11 and a right drive block 12 fixedly connected to the right lens barrel body 11. The threaded sleeves are respectively disposed on the left drive block 11 and the right drive block 12. Specifically, both the left lens barrel body 10 and the right lens barrel body 11 are provided with connecting holes. The left drive block 11 and the right drive block 12 are respectively provided with connecting parts that cooperate with the connecting holes. That is, when the drive motor 4 drives the left lead screw 8 and the right lead screw 9 to rotate, it drives the left drive block 11 and the right drive block 12 to move synchronously, thereby realizing the synchronous sliding of the left lens barrel body 10 and the right lens barrel body 11.
[0029] During specific installation, bearings 15 are provided between one end of the left lead screw 8 and the second bevel gear 6, and between one end of the right lead screw 9 and the third bevel gear 7. Flange bearings 16 are provided at the other ends of the left lead screw 8 and the right lead screw 9. A motor bracket 2 is fixedly mounted on the module bracket 1, and the drive motor 4 is fixedly mounted on the motor bracket 2. The left lead screw 8 and the right lead screw 9 are rotatably mounted on the motor bracket 2. First guide mechanisms are provided between the motor bracket 2 and the left drive block 11 and the right drive block 12, respectively. The first guiding mechanism includes a left guide rod 13 and a right guide rod 14 fixedly mounted on the motor bracket 2. The left drive block 11 has a left guide hole that mates with the left guide rod 13, and the right drive block 12 has a right guide hole that mates with the right guide rod 14. The drive motor 4 is fixed to the motor bracket 2 by a fixed motor bracket 3. There is a receiving cavity between the fixed motor bracket 3 and the motor bracket 2 to accommodate the drive motor 4. The fixed motor bracket 3 and the motor bracket 2 are fixedly connected by a number of fasteners, which are fixed by screws 19.
[0030] The left and right lead screws and left and right guide rods 14 pass through the left and right drive blocks 12 and the bearings 15. The bevel gears are fixed to the ends of the left and right lead screws by interference fit and installed in the motor bracket 2. The motor passes through the fixed motor bracket 3. The bevel gears are fixed to the motor shaft by interference fit. The fixed motor bracket 3 is fixed to the motor bracket 2 by motor fixing screws. Finally, the flange bearing 16 is sleeved on the end of the lead screw and fixed to the motor bracket 2.
[0031] To ensure the stability of the lens barrel's movement and facilitate assembly, the left and right lens barrels are respectively provided with a second guide mechanism between the module support 1. The second guide mechanism includes an upper pin 17 and a lower pin 18 fixedly mounted on the module support 1. The left and right lens barrels are respectively provided with guide holes that cooperate with the upper pin 17 and the lower pin 18.
[0032] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. An IPD adjustment structure for VR glasses, characterized in that, The device includes a module bracket, a left lens barrel and a right lens barrel slidably mounted on the module bracket, and a synchronous drive mechanism on the module bracket for driving the left lens barrel and the right lens barrel to slide synchronously. The synchronous drive mechanism includes a drive motor, a left lead screw and a right lead screw rotatably mounted on the module bracket, and a transmission mechanism between the left lead screw and the right lead screw and the drive motor. A threaded sleeve that mates with the left lead screw is connected to the left lens barrel, and a threaded sleeve that mates with the right lead screw is connected to the right lens barrel.
2. The IPD adjustment structure for VR glasses as described in claim 1, characterized in that: The left lens barrel includes a left lens barrel body and a left drive block fixedly connected to the left lens barrel body. The right lens barrel includes a right lens barrel body and a right drive block fixedly connected to the right lens barrel body. The threaded sleeves are respectively disposed on the left drive block and the right drive block.
3. The IPD adjustment structure for VR glasses as described in claim 2, characterized in that: Both the left and right lens barrel bodies are provided with connection holes, and the left and right drive blocks are respectively provided with connection parts that cooperate with the connection holes.
4. The IPD adjustment structure for VR glasses as described in claim 3, characterized in that: The transmission mechanism includes a first bevel gear fixedly mounted on the motor shaft of the drive motor, a second bevel gear and a third bevel gear fixedly mounted on the left lead screw and the right lead screw respectively, and the second bevel gear and the third bevel gear meshing with the first bevel gear respectively.
5. The IPD adjustment structure for VR glasses as described in claim 4, characterized in that: Bearings are provided between one end of the left lead screw and the second bevel gear, and between one end of the right lead screw and the third bevel gear. Flange bearings are provided at the other ends of the left and right lead screws.
6. The IPD adjustment structure for VR glasses as described in claim 2, characterized in that: A motor bracket is fixedly mounted on the module bracket, the drive motor is fixedly mounted on the motor bracket, the left lead screw and the right lead screw are respectively rotatably mounted on the motor bracket, and a first guide mechanism is provided between the motor bracket and the left drive block and the right drive block respectively.
7. The IPD adjustment structure for VR glasses as described in claim 6, characterized in that: The first guiding mechanism includes a left guide rod and a right guide rod fixedly mounted on the motor bracket. The left drive block has a left guide hole that cooperates with the left guide rod, and the right drive block has a right guide hole that cooperates with the right guide rod.
8. The IPD adjustment structure for VR glasses as described in claim 6, characterized in that: The drive motor is fixed to the motor bracket by a fixed motor bracket. There is a receiving cavity between the fixed motor bracket and the motor bracket to accommodate the drive motor. The fixed motor bracket and the motor bracket are fixedly connected by a number of fasteners.
9. The IPD adjustment structure for VR glasses as described in claim 1, characterized in that: The left and right lens barrels are respectively provided with a second guide mechanism between the module bracket. The second guide mechanism includes an upper pin and a lower pin fixedly mounted on the module bracket. The left and right lens barrels are respectively provided with guide holes that cooperate with the upper pin and the lower pin.
10. The IPD adjustment structure for VR glasses as described in claim 4, characterized in that: The angle between the left lead screw and the right lead screw is in the range of 0°-60°.