Pupil distance adjusting device for VR equipment

Abstract

The invention relates to the technical field of VR equipment, and discloses an interpupillary distance adjusting device for VR equipment, which comprises a shell, a rotating shaft assembly, a driven wheel, a driving gear assembly and a first track, an adjusting through groove is formed in one side of the top surface of the shell; the rotating shaft assembly is rotationally connected to the two opposite inner side walls of the shell, and two symmetrically-arranged arc-shaped grooves are formed in the rotating shaft assembly. The driven wheel is mounted at one end of the rotating shaft component; the driving gear assembly is rotationally connected to the inner side wall of the shell, the top of the driving gear assembly penetrates through the adjusting through groove, and the driving gear assembly is in meshing transmission with the driven wheel; the first rails are installed on the two opposite inner side walls of the shell, two first sliding blocks are connected to the first rails in a sliding mode, the two first sliding blocks are connected with the two arc-shaped grooves in a sliding mode respectively, lens assemblies are installed at the bottoms of the first sliding blocks, and the bottoms of the two lens assemblies are both connected with the inner bottom wall of the shell in a sliding mode. The interpupillary distance can be accurately and synchronously adjusted, the operation is simple and convenient, and the reliability is high.

Description

Technical Field

[0001] The present invention relates to the technical field of VR equipment, and in particular to a pupil distance adjustment device for VR equipment. Background Art

[0002] In the field of virtual reality devices, interpupillary distance adjustment is one of the core parameters that influences the user experience. Interpupillary distance refers to the distance between the centers of the pupils of the two eyes, and this distance varies significantly between users. If the distance between the lenses of a VR device does not match the user's interpupillary distance, it can cause visual ghosting, dizziness, and even eye fatigue, severely reducing immersion and user comfort.

[0003] Traditional VR devices often use electric drive for pupil distance adjustment, but the complex multi-stage transmission system significantly increases the weight and volume of the device, and the manufacturing cost is high. Furthermore, the electronic components are at risk of failure over long-term use, resulting in loss of adjustment function or reduced adjustment accuracy. While some devices do not use electric drive, they use a single-sided slider or asymmetric transmission structure, which results in inconsistent movement rates of the two lens components, easily leading to unilateral adjustment errors, causing the lenses to deviate from their symmetrical positions, which in turn causes visual deviation and poor adjustment results.

[0004] To this end, a pupil distance adjustment device for VR equipment is proposed. Summary of the Invention

[0005] The object of the present invention is to provide a pupil distance adjustment device for VR equipment, aiming to solve or improve at least one of the above-mentioned technical problems.

[0006] To achieve the above-mentioned object, the present invention provides the following solution: The present invention provides a pupil distance adjustment device for VR equipment, comprising:

[0007] A housing, wherein one side of the top surface of the housing is provided with an adjustment slot;

[0008] A rotating shaft assembly, the rotating shaft assembly being rotatably connected to two opposite inner side walls of the housing, and the rotating shaft assembly being provided with two symmetrically arranged arcuate grooves;

[0009] A driven wheel, the driven wheel being mounted on one end of the rotating shaft assembly;

[0010] a driving gear assembly, the driving gear assembly being rotatably connected to the inner side wall of the housing, the top of the driving gear assembly passing through the adjustment slot, and the driving gear assembly meshing with the driven wheel for transmission;

[0011] The first track is installed on the two opposite inner side walls of the shell, and two first sliders are slidably connected to the first track. The two first sliders are slidably connected to the two arc-shaped grooves respectively. A lens assembly is installed at the bottom of the first slider, and the bottoms of the two lens assemblies are slidably connected to the inner bottom wall of the shell.

[0012] According to a pupil distance adjustment device for VR equipment provided by the present invention, the lens assembly includes a frame and a lens, the lens is installed in the frame, an upper connecting rod is installed on the top of the frame, two upper connecting rods are respectively installed on the bottom of two first sliders, and the bottom of the frame is slidably connected to the inner bottom wall of the shell.

[0013] According to a pupil distance adjustment device for VR equipment provided by the present invention, a second track is installed on the inner bottom wall of the shell, two second sliders are slidably connected to the second track, a lower connecting rod is installed at the bottom of the frame, and the bottoms of the two lower connecting rods are respectively fixed to the two second sliders.

[0014] According to a pupil distance adjustment device for VR equipment provided by the present invention, the driving gear assembly includes a large gear and a gear shaft, the gear shaft is rotatably connected to the top of the inner wall of the shell, the large gear is fixedly installed on the gear shaft, the large gear is meshed with the driven wheel for transmission, and the top of the large gear passes through the adjustment slot and extends out of the shell.

[0015] According to a pupil distance adjustment device for VR equipment provided by the present invention, the rotating shaft assembly includes a rotating drum, and a first rotating shaft and a second rotating shaft are fixedly installed at both ends of the rotating drum, respectively. The first rotating shaft and the second rotating shaft are respectively rotatably connected to the two opposite inner side walls of the shell, and the two arc-shaped grooves are symmetrically opened on the outer wall of the rotating drum, and the driven wheel is installed on the first rotating shaft.

[0016] According to a pupil distance adjustment device for a VR device provided by the present invention, the first track includes two sliding rods arranged side by side, the two ends of the sliding rods are respectively fixed to the two opposite inner walls of the shell, and the first slider is provided with two through holes, and the two sliding rods are respectively slidably connected to the hole walls of the two through holes.

[0017] According to the interpupillary distance adjustment device for VR equipment provided by the present invention, the inner wall of the arc-shaped groove is provided with a PTFE coating.

[0018] According to the interpupillary distance adjustment device for VR equipment provided by the present invention, a connecting wing plate is installed at the bottom of the first slider, and the connecting wing plate is detachably connected to the upper connecting rod.

[0019] The present invention discloses the following technical effects:

[0020] The present invention directly converts the rotational motion of the driving gear assembly into synchronous reverse translation of the two lens assemblies through the sliding cooperation between the arc groove of the rotating shaft assembly and the first slider. This eliminates the motor, reducer and multi-stage transmission components required for traditional electric adjustment, significantly reducing the weight and manufacturing cost of the equipment, while avoiding electronic component failures and improving the reliability of the device.

[0021] The present invention ensures that the two lens assemblies always move in opposite directions at the same rate through the symmetrically arranged arc groove and double slider structure, effectively eliminating unilateral adjustment errors, so that the pupil distance adjustment range covers a wider range of people. During the adjustment process, the optical axis of the lens always remains symmetrical, avoiding visual deviation and achieving precise and synchronous adjustment of the pupil distance. The present invention only requires manually rotating the part of the gear assembly that extends out of the adjustment slot to achieve stepless adjustment through gear meshing transmission. The operating torque is small, the feedback is intuitive, and the operation is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 It is a structural schematic diagram of the present invention;

[0024] Figure 2 Schematic diagram of the connection between the rotating shaft assembly and the first track in the present invention;

[0025] Figure 3 Schematic diagram of the connection between the driving gear assembly and the driven wheel in the present invention.

[0026] Among them, 1. Shell; 2. Arc groove; 3. Driven wheel; 4. First slider; 5. Frame; 6. Lens; 7. Upper connecting rod; 8. Second track; 9. Lower connecting rod; 10. Second slider; 11. Large gear; 12. Gear shaft; 13. Rotating drum; 14. First rotating shaft; 15. Second rotating shaft; 16. Sliding rod; 17. Through hole; 18. Connecting wing plate. DETAILED DESCRIPTION

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] Reference Figure 1-Figure 3 The present invention provides a pupil distance adjustment device for VR equipment, comprising:

[0030] The housing 1 has an adjustment slot on one side of the top surface of the housing 1;

[0031] A shaft assembly is rotatably connected to two opposite inner side walls of the housing 1, and has two symmetrically arranged arcuate slots 2;

[0032] A driven wheel 3, which is mounted on one end of the rotating shaft assembly;

[0033] The driving gear assembly is rotatably connected to the inner wall of the housing 1, the top of the driving gear assembly passes through the adjustment slot, and the driving gear assembly is meshed with the driven wheel 3 for transmission;

[0034] The first track is mounted on two opposite inner side walls of the housing 1. Two first sliders 4 are slidably connected to the first track. The two first sliders 4 are slidably connected to the two arc-shaped grooves 2 respectively. A lens assembly is mounted on the bottom of the first slider 4. The bottoms of the two lens assemblies are slidably connected to the inner bottom wall of the housing 1.

[0035] With this arrangement, the present invention directly converts the rotational motion of the driving gear assembly into synchronous reverse translation of the two lens assemblies through the sliding cooperation between the arcuate groove 2 of the rotating shaft assembly and the first slider 4. This eliminates the motor, reducer, and multi-stage transmission components required for traditional electric adjustment, significantly reducing the weight and manufacturing cost of the equipment, while avoiding electronic component failures and improving the reliability of the device.

[0036] The present invention ensures that the two lens assemblies always move in opposite directions at the same rate through the symmetrically arranged arc groove 2 and the double slider structure, effectively eliminating unilateral adjustment errors, so that the pupil distance adjustment range covers a wider range of people. In addition, the optical axis of the lens always remains symmetrical during the adjustment process, avoiding visual deviation and achieving precise and synchronous adjustment of the pupil distance. The present invention only requires manually rotating the part of the gear assembly that extends out of the adjustment slot to achieve stepless adjustment through gear meshing transmission. The operating torque is small, the feedback is intuitive, and the operation is convenient.

[0037] Further optimized, the lens assembly includes a frame 5 and a lens 6, the lens 6 is installed in the frame 5, an upper connecting rod 7 is installed on the top of the frame 5, the two upper connecting rods 7 are respectively installed on the bottom of the two first sliders 4, and the bottom of the frame 5 is slidably connected to the inner bottom wall of the housing 1;

[0038] The lens 6 is embedded in the frame 5 to form an independent optical unit. The top of the frame 5 is rigidly connected to the first slider 4 via an upper connecting rod 7, and the bottom is fixedly connected to the second slider 10 via a lower connecting rod 9, forming a dual-point constraint mechanism. When the first slider 4 is driven to translate by the arcuate groove 2, the upper connecting rod 7 transmits the horizontal displacement to the frame 5. Simultaneously, the lower connecting rod 9 guides the second slider 10 to slide synchronously along the second track 8, constraining the lens assembly vertically within the dual-track guidance. This design eliminates the rotational freedom of the lens assembly through the rigid connection of the upper and lower connecting rods, ensuring translation of the lens 6 and preventing lens tilt caused by unilateral sliding, significantly improving optical stability during pupil distance adjustment.

[0039] To further optimize the solution, a second track 8 is installed on the inner bottom wall of the shell 1, and two second sliders 10 are slidably connected to the second track 8. A lower connecting rod 9 is installed on the bottom of the frame 5, and the bottoms of the two lower connecting rods 9 are fixedly connected to the two second sliders 10 respectively.

[0040] A further optimized solution is that the driving gear assembly includes a large gear 11 and a gear shaft 12. The gear shaft 12 is rotatably connected to the top of the inner wall of the shell 1, and the large gear 11 is fixedly mounted on the gear shaft 12. The large gear 11 is meshed with the driven wheel 3 for transmission. The top of the large gear 11 passes through the adjustment slot and extends out of the shell 1; when the user rotates the large gear 11, its tooth surface meshes with the driven wheel 3 to generate torque transmission, driving the shaft assembly to rotate, and realizing the deceleration and torque increase effect through gear meshing, thereby reducing the manual operating torque.

[0041] A further optimized solution is that the shaft assembly includes a rotating drum 13, and the first rotating shaft 14 and the second rotating shaft 15 are fixedly installed at both ends of the rotating drum 13. The first rotating shaft 14 and the second rotating shaft 15 are respectively rotatably connected to the two opposite inner walls of the shell 1, and two arc-shaped grooves 2 are symmetrically opened on the outer wall of the rotating drum 13, and the driven wheel 3 is installed on the first rotating shaft 14.

[0042] To further optimize the solution, the first track includes two sliding rods 16 arranged side by side, and the two ends of the sliding rod 16 are respectively fixed to the two opposite inner walls of the shell 1. Two through holes 17 are opened on the first slider 4, and the two sliding rods 16 are respectively slidably connected to the hole walls of the two through holes 17.

[0043] To further optimize the solution, a PTFE coating is provided on the inner wall of the arc groove 2; the PTFE coating sprayed on the inner wall of the arc groove 2 forms a self-lubricating interface, and its low friction coefficient characteristic reduces the sliding friction resistance between the first slider 4 and the arc groove 2.

[0044] To further optimize the solution, a connecting wing plate 18 is installed at the bottom of the first slider 4, and the connecting wing plate 18 is detachably connected to the upper connecting rod 7, so that the lens maintenance time is shortened, and the modular structure supports the rapid replacement of lenses of different powers.

[0045] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" and the like to indicate orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0046] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. A person skilled in the art will be able to make other variations or modifications based on the above description. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A pupil distance adjustment device for VR equipment, characterized in that: include: A housing (1), wherein an adjustment slot is provided on one side of a top surface of the housing (1); A rotating shaft assembly, the rotating shaft assembly being rotatably connected to two opposite inner side walls of the housing (1), and the rotating shaft assembly being provided with two symmetrically arranged arc-shaped grooves (2); A driven wheel (3), the driven wheel (3) being mounted on one end of the rotating shaft assembly; A driving gear assembly, the driving gear assembly being rotatably connected to the inner side wall of the housing (1), the top of the driving gear assembly passing through the adjustment slot, and the driving gear assembly meshing with the driven wheel (3) for transmission; A first track is installed on two opposite inner side walls of the housing (1); two first sliders (4) are slidably connected to the first track; the two first sliders (4) are slidably connected to the two arc-shaped grooves (2) respectively; a lens assembly is installed at the bottom of the first slider (4); the bottoms of the two lens assemblies are slidably connected to the inner bottom wall of the housing (1).

2. The interpupillary distance adjustment device for VR equipment according to claim 1, characterized in that: The lens assembly comprises a frame (5) and a lens (6), wherein the lens (6) is mounted in the frame (5), an upper connecting rod (7) is mounted on the top of the frame (5), two upper connecting rods (7) are respectively mounted on the bottoms of the two first sliders (4), and the bottom of the frame (5) is slidably connected to the inner bottom wall of the housing (1).

3. The interpupillary distance adjustment device for VR equipment according to claim 2, characterized in that: A second track (8) is installed on the inner bottom wall of the shell (1), and two second sliders (10) are slidably connected to the second track (8). A lower connecting rod (9) is installed on the bottom of the mirror frame (5), and the bottoms of the two lower connecting rods (9) are respectively fixed to the two second sliders (10).

4. The interpupillary distance adjustment device for VR equipment according to claim 1, characterized in that: The driving gear assembly comprises a large gear (11) and a gear shaft (12), wherein the gear shaft (12) is rotatably connected to the top of the inner wall of the housing (1), and the large gear (11) is fixedly mounted on the gear shaft (12). The large gear (11) is meshed with the driven wheel (3) for transmission, and the top of the large gear (11) passes through the adjustment slot and extends out of the housing (1).

5. The interpupillary distance adjustment device for VR equipment according to claim 1, characterized in that: The rotating shaft assembly includes a rotating drum (13), and a first rotating shaft (14) and a second rotating shaft (15) are fixedly installed at both ends of the rotating drum (13), and the first rotating shaft (14) and the second rotating shaft (15) are respectively rotatably connected to the two opposite inner side walls of the shell (1), and the two arc-shaped grooves (2) are symmetrically opened on the outer wall of the rotating drum (13), and the driven wheel (3) is installed on the first rotating shaft (14).

6. The interpupillary distance adjustment device for VR equipment according to claim 1, characterized in that: The first track comprises two slide bars (16) arranged side by side, the two ends of the slide bars (16) being fixedly connected to the two inner side walls opposite to each other of the shell (1), the first slider (4) being provided with two through holes (17), the two slide bars (16) being slidably connected to the hole walls of the two through holes (17) respectively.

7. The interpupillary distance adjustment device for VR equipment according to claim 1, characterized in that: The inner wall of the arc-shaped groove (2) is provided with a PTFE coating.

8. The interpupillary distance adjustment device for VR equipment according to claim 2, characterized in that: A connecting wing plate (18) is installed at the bottom of the first sliding block (4), and the connecting wing plate (18) is detachably connected to the upper connecting rod (7).

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