Pupil distance adjusting mechanism for VR glasses

Abstract

The utility model discloses a VR glasses interpupillary distance adjusting mechanism, comprising a support and two lens assemblies, each lens assembly is provided with at least one group of sliding structure, each sliding structure comprises two symmetrically arranged guide seats, each guide seat is provided with a guide hole, a rubber sleeve member is installed in each guide hole, the support is provided with a through groove, and each through groove is provided with a through hole. A guide rod is arranged in the through groove, the guide seat extends into the through groove, and the guide rod penetrates through the guide hole and enables the rubber sleeve piece to be arranged on the guide rod in a sleeved mode. The interpupillary distance adjusting mechanism can respectively adjust the free positions of the left lens and the right lens, the rubber sleeve piece is arranged in the guide hole, so that the rubber sleeve piece and the guide rod have certain interference magnitude, the rubber sleeve piece mainly bears the sliding function of the lens assembly, hard friction between the guide hole and the guide rod is reduced, friction and abnormal sound of movement of parts are avoided, and the damping feeling is smoother.

Description

Technical Field

[0001] The utility model relates to the technical field of adjusting mechanisms, and more specifically to an IPD adjusting mechanism for VR glasses. Background Art

[0002] The IPD adjustment module is a module for adjusting optical devices, and is commonly used in AR / VR glasses to adjust the interpupillary distance of the human eye. The purpose is to adjust the optical device to a suitable position relative to the human eye pupil to achieve an appropriate visual state.

[0003] There are generally two types of existing IPD adjustment module mechanisms: ① The adjustment structure is a gear-rack transmission mechanism with an intermediate idler gear. Generally, it is a left-right synchronous adjustment. This structure generally has a left-right symmetric synchronous movement and cannot achieve the free position of the left and right lenses; ② A guide rod and guide shaft structure is adopted, but there is a gap between the guide rod and the guide hole in this structure, and there is no structure to eliminate the gap. Moreover, there is a relatively large abnormal sound during the adjustment process of this structure, the damping feeling is relatively poor, and the sliding is not smooth. Summary of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides an IPD adjusting mechanism for VR glasses. This IPD adjusting mechanism can separately adjust the free positions of the left and right lenses. And by setting a rubber sleeve in the guide hole, there is a certain interference fit between the rubber sleeve and the guide rod. The rubber sleeve mainly bears the sliding function of the lens assembly, reduces the hard friction between the guide hole and the guide rod, avoids the friction and abnormal sound during the movement of the components, and the damping feeling is smoother.

[0005] To achieve the above object, the utility model provides the following technical solutions:

[0006] An IPD adjusting mechanism for VR glasses, comprising a bracket and two lens assemblies. At least one set of sliding structures is arranged on the lens assembly. The sliding structure includes two symmetrically arranged guide seats. A guide hole is arranged on the guide seat. A rubber sleeve is installed in the guide hole. A through groove is arranged on the bracket. A guide rod is arranged in the through groove. The guide seat extends into the through groove, and the guide rod passes through the guide hole and the rubber sleeve is sleeved on the guide rod.

[0007] Furthermore, a side hole is arranged on the side surface of the bracket. The side hole is communicated with the through groove. The guide rod passes through the side hole and is located in the through groove.

[0008] Furthermore, a clearance fit is provided between the guide rod and the guide hole, and an interference fit is provided between the guide rod and the rubber sleeve.

[0009] Furthermore, a sliding hole is arranged in the rubber sleeve. A plurality of annular protrusions are arranged in the sliding hole. The rubber sleeve is sleeved on the guide rod through the sliding hole, and a plurality of annular protrusions all abut against the guide rod.

[0010] Furthermore, through holes are provided on both sides inside the guiding holes, positioning posts are provided on both sides of the rubber sleeve assembly, and the rubber sleeve assembly is installed in the guiding holes with the positioning posts extending into the through holes.

[0011] Furthermore, two sets of sliding structures are provided. The two sets of sliding structures are respectively located above and below the side of the lens assembly facing the bracket, and through slots are provided both above and below on the bracket.

[0012] Furthermore, the through slots include two left sliding slots and two right sliding slots. The two guiding seats of the two lens assemblies are respectively located in the two left sliding slots and the two right sliding slots, and the guiding rods sequentially pass through and are located in the two left sliding slots and the two right sliding slots.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] 1. For the interpupillary distance adjustment mechanism of the present utility model, by improving the structure to utilize the structural form of guiding rods, through slots, guiding seats and guiding holes, and there is no interconnection and sliding between the two lens assemblies, so that the free positions of the left and right lenses can be adjusted separately;

[0015] 2. By providing a rubber sleeve assembly inside the guiding hole, there is a certain interference fit between the rubber sleeve assembly and the guiding rod. The rubber sleeve assembly mainly bears the sliding function of the lens assembly, reducing the hard friction between the guiding hole and the guiding rod, avoiding the friction and abnormal noise of the movement of the components, and the damping feeling is smoother;

[0016] 3. Compared with the existing structure, this interpupillary distance adjustment mechanism reduces the intermediate gear components and is lighter in weight. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings, where:

[0018] Figure 1 is an exploded view of an interpupillary distance adjustment mechanism of a VR glasses; Figure 1 ;

[0019] Figure 2 is an internal cross-sectional view of an interpupillary distance adjustment mechanism of a VR glasses;

[0020] Figure 3 is an exploded view of an interpupillary distance adjustment mechanism of a VR glasses; Figure 2 ;

[0021] Figure 4Schematic diagram of the structure of the guide seat and the rubber kit

[0022] Figure 5 Schematic diagram of the structure of an assembled pupil distance adjustment mechanism for a VR glasses

[0023] The markings in the figure are: 1. Bracket; 101. Through groove; 102. Side hole; 2. Lens assembly; 201. Guide seat; 202. Guide hole; 203. Positioning hole; 3. Rubber kit; 301. Positioning post; 302. Annular protrusion; 303. Sliding hole; 4. Guide rod Detailed implementation mode

[0024] In the description of the present invention, it should be noted that for orientation terms, if there are terms such as "center", "transverse (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the orientation and position relationships indicated are based on the orientation or position relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, 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 should not be construed as limiting the specific protection scope of the present invention

[0025] In addition, if there are terms "first" and "second", they are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, the meanings of "several" and "a number of" are two or more, unless otherwise specifically defined

[0026] A pupil distance adjustment mechanism for a VR glasses, as Figures 1-5 shown, includes a bracket 1 and two lens assemblies 2. At least one set of sliding structures is provided on the lens assembly 2. The sliding structure includes two symmetrically arranged guide seats 201. A guide hole 202 is provided on the guide seat 201. A rubber kit 3 is installed in the guide hole 202. A through groove 101 is provided on the bracket 1. A guide rod 4 is provided in the through groove 101. The guide seat 201 extends into the through groove 101, and the guide rod 4 passes through the guide hole 202 and the rubber kit 3 is sleeved on the guide rod 4

[0027] Preferably, a side hole 102 is provided on the side of the bracket 1. The side hole 102 communicates with the through groove 101. The guide rod 4 passes through the side hole 102 and is located in the through groove 101, so as to realize the installation of the guide rod 4

[0028] Preferably, a clearance fit is provided between the guide rod 4 and the guide hole 202, and an interference fit is provided between the guide rod 4 and the rubber sleeve assembly 3, so that the rubber ring mainly bears the sliding function of the lens assembly 2, reducing the hard friction between the guide hole 202 and the guide rod 4, avoiding the friction and abnormal noise of the movement of the components, and making the sliding damping feeling of the lens assembly 2 smoother.

[0029] Preferably, a sliding hole 303 is provided in the rubber sleeve assembly 3, and a plurality of annular protrusions 302 are provided in the sliding hole 303. The rubber sleeve assembly 3 is sleeved on the guide rod 4 through the sliding hole 303, and a plurality of annular protrusions 302 all abut against the guide rod 4, thereby realizing the interference connection of the rubber sleeve assembly 3 to the guide rod 4.

[0030] Preferably, through positioning holes 203 are provided on both sides inside the guide hole 202, positioning posts 301 are provided on both sides of the rubber sleeve assembly 3, and the rubber sleeve assembly 3 is installed in the guide hole 202 and the positioning posts 301 extend into the positioning holes 203, thereby realizing the positioning installation of the rubber sleeve assembly 3.

[0031] Preferably, two sets of sliding structures are provided. The two sets of sliding structures are respectively located above and below the side of the lens assembly 2 facing the bracket 1. Through grooves 101 are provided both above and below on the bracket 1, so as to ensure that both the upper and lower parts of the lens assembly 2 can perform guiding sliding, realizing the stable and precise sliding adjustment of the lens assembly 2.

[0032] Preferably, the through groove 101 includes two left sliding grooves and two right sliding grooves. The two guide seats 201 of the two lens assemblies 2 are respectively located in the two left sliding grooves and the two right sliding grooves, and the guide rod 4 sequentially passes through and is located in the two left sliding grooves and the two right sliding grooves.

[0033] Preferably, the rubber sleeve assembly 3 can be made of rubber material or silicone material.

[0034] Specifically, when assembling the interpupillary distance adjusting mechanism, first install the rubber sleeve assembly 3 in the guide hole 202 and realize the positioning installation through the positioning posts 301. Subsequently, install the two lens assemblies 2 and the bracket 1, so that the guide seats 201 of the two lens assemblies 2 respectively extend into the two left sliding grooves and the two right sliding grooves. Finally, insert the guide rod 4 into the side hole 102 and extend it into the guide hole 202 of the guide seat 201, and finally complete the assembly of the interpupillary distance adjusting mechanism.

[0035] Advantages:

[0036] 1. For the interpupillary distance adjusting mechanism of the present invention, by improving the structure to the structural form using the guide rod 4, the through groove 101, the guide seat 201 and the guide hole 202, and there is no interconnected sliding between the two lens assemblies 2, so that the free positions of the left and right lenses can be adjusted respectively;

[0037] 2. By arranging the rubber kit 3 in the guiding hole 202, there is a certain interference fit between the rubber kit 3 and the guiding rod 4. The rubber kit 3 mainly bears the sliding function of the lens assembly 2, reduces the hard friction between the guiding hole 202 and the guiding rod 4, avoids the friction and abnormal noise of the movement of the components, and the damping feeling is smoother.

[0038] 3. Compared with the existing structure, this pupil distance adjusting mechanism reduces the intermediate gear components and is lighter.

[0039] The above are only the preferred embodiments of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions falling within the idea of the present invention belong to the protection scope of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A VR glasses pupil distance adjustment mechanism, characterized by: It comprises a bracket and two lens assemblies, wherein the lens assemblies are provided with at least one set of sliding structures, wherein the sliding structures comprise two symmetrically arranged guide seats, wherein the guide seats are provided with guide holes, wherein a rubber kit is installed in the guide holes, wherein a through groove is provided on the bracket, wherein a guide rod is provided in the through groove, wherein the guide seat extends into the through groove, and the guide rod passes through the guide hole and the rubber kit is sleeved on the guide rod.

2. The interpupillary distance adjustment mechanism for VR glasses according to claim 1, characterized in that: A side hole is arranged on the side of the bracket, the side hole is communicated with the through slot, and the guide rod passes through the side hole and is located in the through slot.

3. The interpupillary distance adjustment mechanism for VR glasses according to claim 1, characterized in that: There is a clearance fit between the guide rod and the guide hole, and there is an interference fit between the guide rod and the rubber sleeve.

4. The interpupillary distance adjustment mechanism for VR glasses according to claim 3, characterized in that: The rubber sleeve is provided with a sliding hole, and a plurality of annular protrusions are provided in the sliding hole. The rubber sleeve is sleeved on the guide rod through the sliding hole, and the plurality of annular protrusions all abut against the guide rod.

5. The interpupillary distance adjustment mechanism for VR glasses according to claim 1, characterized in that: Penetrating positioning holes are arranged on both sides of the guide hole, positioning columns are arranged on both sides of the rubber sleeve, the rubber sleeve is installed in the guide hole and the positioning columns extend into the positioning holes.

6. The interpupillary distance adjustment mechanism for VR glasses according to claim 1, characterized in that: The sliding structure is provided with two groups, and the two groups of sliding structures are respectively located above and below the side of the lens assembly facing the bracket, and through grooves are provided above and below the bracket.

7. The interpupillary distance adjustment mechanism for VR glasses according to claim 6, characterized in that: The through slot comprises two left sliding slots and two right sliding slots, the two guide seats of the two lens assemblies are respectively located in the two left sliding slots and the two right sliding slots, and the guide rod passes through and is located in the two left sliding slots and the two right sliding slots in sequence.

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