Gear hovering structure and VR glasses

Abstract

The utility model relates to a gear hovering structure, in particular to a gear hovering structure and VR glasses, which comprise a shell, a scale gear, a ball and an elastic piece, a guide groove is formed in the shell, an opening is formed in one end of the guide groove in the length direction, a closed end is formed in the other end of the guide groove, and the scale gear is rotationally connected with the shell; the elastic piece is arranged in the guide groove, one end of the elastic piece abuts against the closed end of the guide groove, the other end of the elastic piece is connected with the ball, and the elastic force of the elastic piece enables the ball to have the trend of moving away from the closed end so that the ball can abut against the outer teeth of the scale gear all the time. The utility model has the advantages of simple structure and low cost.

Description

Technical Field

[0001] This utility model belongs to the field of gear hovering structure, and particularly relates to a gear hovering structure and VR glasses. Background Technology

[0002] In the current VR device field, VR devices are already capable of refractive adjustment to accommodate users with myopia or hyperopia. Existing VR devices use self-locking gears to maintain the gear angle after the external force is removed, ensuring the VR device is at the appropriate refractive power. However, using self-locking gears is costly. Therefore, there is an urgent need for a low-cost angle adjustment mechanism. Summary of the Invention

[0003] The technical problem this invention aims to solve is that the existing VR devices using self-locking gears to maintain diopter are costly. This invention provides a low-cost angle adjustment mechanism.

[0004] To address the aforementioned problems, this utility model provides a gear hovering structure, comprising a housing, a graduated gear, a ball bearing, and an elastic element.

[0005] The housing is provided with a guide groove, one end of which is open and the other end is closed, and the scale gear is rotatably connected to the housing;

[0006] The elastic element is placed in the guide groove, with one end of the elastic element abutting against the closed end of the guide groove and the other end connected to the ball. The elastic force of the elastic element causes the ball to tend to move away from the closed end, so that the ball always abuts against the outer teeth of the scale gear.

[0007] Optionally, the tooth groove width of the graduated gear is greater than or equal to the diameter of the ball, such that at least half of the ball can be engaged in the tooth groove of the graduated gear.

[0008] Optionally, it also includes a knob and a rotating shaft, the knob being disposed outside the housing, the scale gear being disposed inside the housing, the rotating shaft passing through the housing, one end of the rotating shaft being connected to the knob, and the other end of the rotating shaft being connected to the scale gear.

[0009] Optionally, the width of the guide groove is greater than the diameter of the ball.

[0010] Optionally, the housing is provided with a receiving groove, which is connected to the guide groove. The receiving groove is circular and is used to receive the scale gear.

[0011] Optionally, the inner wall of the receiving groove and the outer periphery of the graduated gear are spaced apart.

[0012] Optionally, the diameter of the ball is smaller than the thickness of the graduated gear.

[0013] Optionally, the openings of the graduated gear and the guide groove are spaced apart.

[0014] On the other hand, this utility model also provides a VR glasses, including an optical engine and the aforementioned gear hovering structure, wherein the scale gear is connected to the optical lens of the optical engine.

[0015] This utility model provides a gear suspension structure. In this embodiment, when an external force drives the graduated gear to rotate, a ball moves from one tooth groove to another until the external force is removed. At this point, the ball is engaged in the groove, thus restricting the rotation of the graduated gear without external force, thereby stopping the graduated gear and maintaining its stationary state at that angle. When it is necessary to rotate the graduated gear, an external force can drive it to rotate. Notably, the external force can drive the graduated gear to rotate clockwise or counterclockwise. This utility model has the advantages of simple structure and low cost. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is an overall schematic diagram of the gear hovering structure provided in one embodiment of the present utility model;

[0018] Figure 2 This is a cross-sectional schematic diagram of a gear hovering structure provided in one embodiment of the present invention.

[0019] The reference numerals in the accompanying drawings are as follows:

[0020] 1. Housing; 11. Receiving groove; 12. Guide groove; 2. Scale gear; 3. Ball bearing; 4. Elastic element; 5. Knob. Detailed Implementation

[0021] To make the technical problems solved, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0022] In the description of this utility model, it should be understood that the terms "longitudinal," "radial," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] like Figure 1 and Figure 2 As shown, one embodiment of this utility model provides a gear hovering structure, including a housing 1, a graduated gear 2, a ball bearing 3, and an elastic element 4; the housing 1 is provided with a guide groove 12, one end of the guide groove 12 is open in the length direction, and the other end is closed, the graduated gear 2 is rotatably connected to the housing 1; the elastic element 4 is placed in the guide groove 12, one end of the elastic element 4 abuts against the closed end of the guide groove 12, and the other end is connected to the ball bearing 3, the elastic force of the elastic element 4 causes the ball bearing 3 to have a tendency to move away from the closed end, so that the ball bearing 3 always abuts against the outer teeth of the graduated gear 2.

[0025] In this embodiment, when an external force drives the graduated gear 2 to rotate, the ball 3 moves from one slot of the graduated gear 2 into another until the external force is removed. At this point, the ball 3 is engaged in the slot, thus limiting the rotation of the graduated gear 2 without external force, thereby stopping the graduated gear 2 and maintaining its stationary state at that angle. When it is necessary to rotate the graduated gear 2, an external force can drive it to rotate. It is worth mentioning that the external force can drive the graduated gear 2 to rotate clockwise or counterclockwise. Generally, the graduated gear 2 is connected to one of the components inside the housing 1, and the angle of this component relative to the housing 1 is changed by the gear suspension structure. Since the ball, spring, etc. are common components, the processing technology is mature, and the procurement cost is low.

[0026] In this embodiment, when the machining accuracy can ensure that the tooth grooves of the graduated gear 2 are narrower, or when the backlash design and transmission ratio of the graduated gear 2 can ensure precise stopping at the target position, a high-precision positioning function is achieved. In this embodiment, the ball 3 is a steel ball, and the gear is also a metal gear. Both are rigid structures, which can maintain a consistent hovering position during multiple operations, reducing calibration requirements.

[0027] Furthermore, because the graduated gear 2 and the ball bearing 3 maintain their position through mechanical engagement, accidental displacement can be minimized under vibration or shaking conditions, resulting in high stability of their engagement. Moreover, the mechanical engagement remains intact even when the equipment is powered off.

[0028] In addition, in applications where equipment is frequently started and stopped, the mechanical meshing of the graduated gear 2 and the ball bearing 3 enables smooth hovering, which can reduce impact damage to gears and transmission components.

[0029] In one embodiment, the tooth groove width of the graduated gear 2 is greater than or equal to the diameter of the ball 3, such that at least half of the ball 3 can be engaged in the tooth groove of the graduated gear 2. Commonly, the tooth groove width of the graduated gear 2 is equal to the radius of the ball 3, allowing half of the ball 3 to be embedded in the tooth groove, thereby improving the stability of their meshing.

[0030] In one embodiment, the system further includes a knob 5 and a rotating shaft. The knob 5 is disposed outside the housing 1, the graduated gear 2 is disposed inside the housing 1, and the rotating shaft passes through the housing 1. One end of the rotating shaft is connected to the knob 5, and the other end of the rotating shaft is connected to the graduated gear 2. In this embodiment, the knob 5 and the rotating shaft facilitate the rotation of the graduated gear 2 by a person outside the housing 1.

[0031] In one embodiment, the housing 1 is provided with a receiving groove 11, which communicates with the guide groove 12. The receiving groove 11 is circular and is used to accommodate the graduated gear 2. The housing 1 is made of plastic, and both the receiving groove 11 and the guide groove 12 are injection molded.

[0032] In one embodiment, the inner wall of the receiving groove 11 and the outer periphery of the graduated gear 2 are spaced apart. Due to limitations in machining accuracy and cost, the size of the receiving groove 11 is generally made larger than the size of the graduated gear 2 to facilitate the installation of the graduated gear 2.

[0033] In one embodiment, the openings of the graduated gear 2 and the guide groove 12 are spaced apart. When the distance between the openings of the graduated gear 2 and the guide groove 12 is greater than or equal to the diameter of the ball 3, part of the elastic element 4 extends out of the guide groove 12. When the graduated gear 2 rotates, the ball 3 does not need to enter the guide groove 12 to avoid it, and does not affect the normal rotation of the graduated gear 2.

[0034] In one embodiment, the width of the guide groove 12 is greater than the diameter of the ball 3. Due to limitations in processing precision and cost, the width of the guide groove 12 is slightly larger than the diameter of the ball 3, allowing the ball 3 to enter the guide groove 12. When the opening gap between the graduated gear 2 and the guide groove 12 is too small, the ball 3 can enter the guide groove 12 and press against the elastic element 4 to prevent the normal rotation of the graduated gear 2. This makes the selection range of the elastic element 4 or the selection range of the graduated gear 2 in this embodiment wider, improving the applicability of the gear suspension structure.

[0035] In one embodiment, the diameter of the ball bearing 3 is smaller than the thickness of the graduated gear 2. Referring to the accompanying drawings, the diameter of the ball bearing 3 does not need to be too large, otherwise it will affect the width of the guide groove 12. The ball bearing 3 only needs to be able to fit into the graduated gear 2. This setting allows the diameter of commonly available steel balls to be used in this embodiment, eliminating the need to use ball bearings 3 of special sizes, thereby reducing production costs.

[0036] In addition, one embodiment of this utility model provides a VR glasses, including an optical engine and the aforementioned gear suspension structure. The scale gear 2 is connected to the optical lens of the optical engine. When the scale gear 2 is rotated, it can drive the optical lens to rotate, thereby realizing the diopter adjustment of the VR glasses.

[0037] The above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model, and should all be included within the protection scope of this utility model.

Claims

1. A gear hover structure, characterized by, Includes housing, graduated gears, ball bearings, and elastic components; The housing is provided with a guide groove, one end of which is open and the other end is closed, and the scale gear is rotatably connected to the housing. The elastic element is placed in the guide groove, with one end of the elastic element abutting against the closed end of the guide groove and the other end connected to the ball. The elastic force of the elastic element causes the ball to tend to move away from the closed end, so that the ball always abuts against the outer teeth of the scale gear.

2. The gear hover structure of claim 1, wherein, The tooth groove width of the graduated gear is greater than or equal to the diameter of the ball, such that at least half of the ball can be engaged in the tooth groove of the graduated gear.

3. The gear hover structure of claim 1, wherein, It also includes a knob and a rotating shaft. The knob is disposed outside the housing, the scale gear is disposed inside the housing, and the rotating shaft passes through the housing. One end of the rotating shaft is connected to the knob, and the other end of the rotating shaft is connected to the scale gear.

4. The gear hover structure of claim 1, wherein, The width of the guide groove is greater than the diameter of the ball.

5. The gear hover structure of claim 1, wherein, The housing is provided with a receiving groove, which is connected to the guide groove. The receiving groove is circular and is used to accommodate the scale gear.

6. The gear hover structure of claim 5, wherein, The inner wall of the receiving groove and the outer periphery of the graduated gear are spaced apart.

7. The gear hovering structure according to claim 1, characterized in that, The diameter of the ball is smaller than the thickness of the graduated gear.

8. The gear hover structure of claim 1, wherein, The openings of the graduated gear and the guide groove are spaced apart.

9. A VR glasses, characterized in that, It includes an optical engine and a gear hovering structure according to any one of claims 1 to 8, wherein the graduated gear is connected to the optical lens of the optical engine.

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