Screen adjusting mechanism and VR glasses

Abstract

The utility model provides a screen adjusting mechanism and VR glasses, the screen adjusting mechanism comprises a lens cone, a lens assembly, a display screen and a pressure adjusting assembly, the pressure adjusting assembly comprises a pressure adjusting device, an elastic sealing part and a plurality of pressure adjusting pipelines; the elastic sealing part is connected between the display screen and the second end of the lens cone in a sealing manner and comprises a plurality of sealing cavities, and the sealing cavities can deform when the internal pressure changes; the first end of each pressure regulating pipeline is connected with the corresponding sealing cavity, and the second end is connected with a pressure regulating device. According to the screen adjusting mechanism, the sealing chambers can be independently pressurized or depressurized through the pressure adjusting devices and the corresponding pressure adjusting pipelines, so that the deformation degrees of the sealing chambers are different, the volumes of some sealing chambers are increased, and the volumes of some sealing chambers are reduced or kept unchanged; therefore, inclination of the display screen in different directions relative to the lens cone is realized, and multi-degree-of-freedom adjustment of the display screen is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of VR equipment, and in particular to a screen adjustment mechanism capable of realizing screen partition adjustment and VR glasses using the screen adjustment mechanism. Background Art

[0002] The screen distance adjustment in current VR modules mostly adopts mechanical transmission such as lead screw, worm gear and other adjustment means. The adjustment method is single and can only make the screen move forward and backward along the axis of the lens barrel as a whole. The screen cannot be adjusted to be tilted relative to the axis of the lens barrel. In addition, the mechanical transmission structure is relatively complex and the production cost is high. In order to ensure the sealing of the lens barrel, the sealing of the space between the screen and the lens barrel is required to be high. The forward and backward movement of the screen relative to the lens barrel will inevitably affect the sealing between the screen and the lens barrel, thereby affecting the dustproof effect of the VR module.

[0003] The above information disclosed in the background technology is only used to increase the understanding of the background technology of the present application, and therefore, it may include information that does not constitute the prior art known to ordinary technicians in the field. Summary of the invention

[0004] The utility model provides a screen adjustment mechanism and VR glasses, which can solve the problems in the prior art that the screen can only move forward and backward along the axis of the lens barrel as a whole, cannot be tilted and adjusted, and the reliability of the space sealing between the screen and the lens barrel is difficult to ensure.

[0005] In order to achieve the purpose of solving the above technical problems, the screen adjustment mechanism proposed by the present invention adopts the following technical solutions to achieve the purpose: a screen adjustment mechanism, comprising:

[0006] A lens barrel having a first end and a second end disposed opposite to each other;

[0007] A lens assembly disposed on the first end of the lens barrel;

[0008] A display screen, which is arranged on the second end of the lens barrel;

[0009] A pressure regulating assembly comprises a pressure regulating device, an annular elastic sealing component and a plurality of pressure regulating pipelines; the elastic sealing component is sealingly connected between the display screen and the second end of the lens barrel, and comprises a plurality of sealed chambers arranged along its circumference and isolated from each other, wherein the sealed chambers are deformable when the internal pressure changes; the first end of each of the pressure regulating pipelines is connected to the corresponding sealed chamber, and the second end is connected to the pressure regulating device.

[0010] The elastic sealing component is formed by connecting a rubber tube or a rubber spring tube end to end, and a plurality of partitions arranged at intervals along the circumferential direction are formed in the tube to form a plurality of the sealing chambers.

[0011] The elastic sealing component is bonded to the display screen and the second end of the lens barrel.

[0012] The plurality of sealing chambers are evenly distributed along the circumference of the elastic sealing component.

[0013] Each of the pressure regulating pipelines is provided with a pressure regulating device.

[0014] The second ends of the plurality of pressure regulating pipelines are connected to a main pipeline, the number of the pressure regulating device is one, which is arranged on the main pipeline, and each of the pressure regulating pipelines is provided with an electric regulating valve.

[0015] The pressure regulating assembly further comprises a pressure sensor and a controller, wherein the pressure sensor is arranged in a one-to-one correspondence with the pressure regulating pipeline and is arranged on the sealed chamber or on the pressure regulating pipeline;

[0016] The pressure sensor, the electric regulating valve and the pressure regulating device are all electrically connected to the controller.

[0017] The second ends of the plurality of pressure regulating pipelines are integrated on an intermediate adapter box, the intermediate adapter box is connected to the main pipeline, and each of the electric regulating valves is correspondingly arranged on the second end of the pressure regulating pipeline and exposed from the intermediate adapter box.

[0018] The plurality of pressure regulating pipelines are arranged around the circumferential outer side of the elastic sealing component.

[0019] The utility model also proposes a pair of VR glasses, comprising the above-mentioned screen adjustment mechanism.

[0020] Compared with the prior art, the utility model has the following advantages and positive effects:

[0021] 1. The screen adjustment mechanism of the utility model comprises a lens barrel, a lens assembly, a display screen and a pressure adjustment assembly, wherein the pressure adjustment assembly comprises a pressure adjustment device, an annular elastic sealing component and a plurality of pressure-regulating pipelines; the elastic sealing component is sealed and connected between the display screen and the second end of the lens barrel, and comprises a plurality of sealed chambers arranged along its circumference and isolated from each other, and the sealed chambers can be deformed when the internal pressure changes; the first end of each pressure-regulating pipeline is connected to the corresponding sealed chamber, and the second end is connected to the pressure adjustment device; the sealed chambers can be independently pressurized or depressurized by the pressure adjustment device and the corresponding pressure adjustment pipeline, so that the deformation degree of each sealed chamber is different, the volume of some sealed chambers increases, and the volume of some sealed chambers decreases or remains unchanged, thereby realizing the inclination of the display screen in different directions relative to the lens barrel, realizing the multi-degree-of-freedom adjustment of the display screen, realizing the adjustment of the optical effect, and compensating for the processing error of the structural parts; multiple sealed chambers can also be pressurized or depressurized by the same amount at the same time, so that the deformation degree is kept consistent, so that the display screen can move forward and backward relative to the lens barrel;

[0022] 2. The elastic sealing component is sealed between the display screen and the second end of the lens barrel, and can also take into account the sealing and dustproof effects of the VR glasses, ensuring the reliability of the space sealing between the screen and the lens barrel.

[0023] After reading the specific embodiments of the present invention in conjunction with the accompanying drawings, other features and advantages of the present invention will become more clear. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the cross-sectional structure of the screen adjustment mechanism in the embodiment of the utility model;

[0025] Figure 2 This is a schematic diagram of the three-dimensional structure of the pressure regulating assembly in the embodiment of the utility model;

[0026] Figure 3 It is a schematic diagram of the cross-sectional structure of the pressure regulating assembly in the embodiment of the utility model.

[0027] Reference numerals:

[0028] 10. lens barrel; 11. first end of lens barrel; 12. second end of lens barrel;

[0029] 20. Lens assembly;

[0030] 30. Display screen;

[0031] 40. Pressure regulating assembly; 41. Pressure regulating device; 42. Elastic sealing component; 421. Sealing chamber; 422. Partition; 43. Pressure regulating pipeline; 44. Main pipeline; 45. Electric regulating valve; 46. Pressure sensor; 47. Intermediate transfer component. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] It should be noted that in the description of the present invention, the terms "upper", "lower", "left", "right", "inner", "outer" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0034] Reference Figures 1 to 3 In some embodiments of the present invention, a screen adjustment mechanism is proposed, including a lens barrel 10, a lens assembly 20, a display screen 30 and a pressure adjustment assembly 40.

[0035] The lens barrel 10 has a first end and a second end that are arranged opposite to each other. In the wearing state, the first end 11 of the lens barrel is the rear end thereof, and the second end 12 of the lens barrel is the front end thereof.

[0036] The lens assembly 20 is disposed on the first end 11 of the lens barrel.

[0037] The display screen 30 is disposed on the second end 12 of the lens barrel.

[0038] The pressure regulating assembly 40 includes a pressure regulating device 41, an annular elastic sealing component 42 and a plurality of pressure regulating pipelines 43. The elastic sealing component 42 is sealed and connected between the display screen 30 and the second end 12 of the lens barrel, that is, it seals the annular gap between the display screen 30 and the second end 12 of the lens barrel. The elastic sealing component 42 includes a plurality of sealed chambers 421 arranged along its circumference and isolated from each other. Since the elastic sealing component 42 is elastic, the sealed chambers 421 can be deformed when the internal pressure changes; at the two ends of each pressure regulating pipeline 43, the first end thereof is connected to the corresponding sealed chamber 421, and the second end is connected to the pressure regulating device 41.

[0039] The screen adjustment mechanism in this embodiment can independently pressurize or reduce the pressure of each sealed chamber 421 through the pressure adjustment device 41 and the corresponding pressure regulating pipeline 43, so that each sealed chamber 421 has different deformation degrees. If the volume of some sealed chambers 421 increases, the display screen 30 part in the corresponding area moves forward more relative to the lens barrel 10, and if the volume of some sealed chambers 421 decreases or remains unchanged, the display screen 30 part in the corresponding area moves forward less or not at all relative to the lens barrel 10, thereby realizing the partition adjustment of the display screen 30 relative to the lens barrel 10, so that the display screen 30 can be adjusted to the desired position. The display screen 30 as a whole can be tilted in different directions relative to the lens barrel 10, so that the display screen 30 can be adjusted with multiple degrees of freedom to achieve optical effect adjustment and compensate for structural component processing errors; multiple sealed chambers 421 can also be pressurized or depressurized at the same time to keep their deformation degrees consistent, so that the display screen 30 can move forward and backward relative to the lens barrel 10; the elastic sealing component 42 is sealed between the display screen 30 and the second end 12 of the lens barrel, and can also take into account the sealing and dustproof effects of the VR glasses, thereby ensuring the reliability of the space sealing between the screen and the lens barrel 10.

[0040] As Figure 3 Taking the elastic sealing component 42 shown as including four sealed chambers 421, namely, No. ①, No. ②, No. ③ and No. ④, as an example, if sealed chamber No. ① 421 is pressurized, sealed chamber No. ③ 421 is depressurized, and sealed chambers No. ② and No. ④ remain unchanged, the area corresponding to sealed chamber No. ① 421 of the display screen 30 can be convex to the maximum relative to the second end 12 of the lens barrel, and the area corresponding to sealed chamber No. ③ 421 can be convex to the minimum relative to the second end 12 of the lens barrel, thereby realizing that the display screen 30 is tilted toward the side where sealed chamber No. ③ 421 is located.

[0041] In some embodiments of the present invention, the elastic sealing component 42 can be formed by connecting a rubber tube or a rubber spring tube end to end, that is, a section of rubber tube or rubber spring tube is bent and connected end to end into an annular structure, and a plurality of partitions 422 are arranged in the tube along the circumferential direction to divide the space inside the tube into a plurality of sealed chambers 421. Alternatively, each sealed chamber 421 is formed by an independent and strip-shaped hollow elastic member, and then each independent sealed chamber 421 is sequentially bonded end to end to form a complete annular elastic sealing component 42. The specific structural form of the elastic sealing component 42 is not specifically limited here.

[0042] Regarding the connection between the elastic sealing component 42, the display screen 30 and the lens barrel 10, in some embodiments of the present invention, a sealant may be used to bond one side of the elastic sealing component 42 to the display screen 30, and a sealant may be used to bond the other side of the elastic sealing component 42 to the second end 12 of the lens barrel to form a fixed connection. The sealant can not only achieve bonding between the elastic sealing component 42, the display screen 30 and the lens barrel 10, but also ensure the sealing of the bonding point, and the sealant may be water-based glue, hot melt glue, etc.

[0043] In some embodiments of the present invention, Figure 3 As shown, the plurality of sealing chambers 421 are evenly distributed along the circumference of the elastic sealing component 42 . Figure 3 In the figure, four sealed chambers 421 are set as an example for schematic illustration. Of course, the number of sealed chambers 421 is not limited to four, and the number of chambers can be increased or decreased based on the actual adjustment accuracy. For example, if a higher adjustment accuracy is required, the number of sealed chambers 421 can be appropriately increased. Relatively, the volume of each sealed chamber 421 (referring to the volume in the natural state) is relatively small. The more the number of partitions of the display screen 30 is, the higher the adjustment accuracy is. If a lower adjustment accuracy is required, the number of sealed chambers 421 can be appropriately reduced. Relatively, the volume of each sealed chamber 421 (referring to the volume in the natural state) is relatively large. The fewer the number of partitions of the display screen 30 is, the lower the adjustment accuracy is.

[0044] In some embodiments of the utility model, the second ends of multiple pressure regulating pipelines 43 are connected to a main pipeline 44, the number of pressure regulating devices 41 is one, which is arranged on the main pipeline 44, and each pressure regulating pipeline 43 is provided with an electric regulating valve 45. When it is necessary to adjust the pressure of a sealed chamber 421, it is only necessary to open the corresponding electric regulating valve 45, so that the pressure regulating device can pass through the main pipeline 44 and then through the corresponding pressure regulating pipeline 43 to adjust the pressure of the sealed chamber 421. The electric regulating valve 45 can specifically adopt a proportional solenoid valve, etc.

[0045] To achieve automatic pressure regulation, in some embodiments of the present invention, the pressure regulating assembly 40 further includes a pressure sensor 46 and a controller (not shown), and the pressure sensor 46 is arranged in a one-to-one correspondence with the pressure regulating pipeline 43, which is arranged on the sealed chamber 421 or on the pressure regulating pipeline 43; for example, Figure 3 Taking the four sealed chambers 421 shown as an example, there are four corresponding pressure regulating pipelines 43, and four pressure sensors 46 are set accordingly. The pressure sensor 46 of sealed chamber No. 1 421 is set on sealed chamber No. 1 421 or on the pressure regulating pipeline 43 corresponding to sealed chamber No. 1 421, the pressure sensor 46 of sealed chamber No. 2 421 is set on sealed chamber No. 2 421 or on the pressure regulating pipeline 43 corresponding to sealed chamber No. 2 421, and so on.

[0046] The pressure sensor 46, the electric regulating valve 45, and the pressure regulating device 41 are all electrically connected to the controller. When it is necessary to regulate the pressure of a sealed chamber 421, the controller controls the corresponding electric regulating valve 45 to open, and controls the pressure regulating device 41 to operate, and regulates the pressure of the sealed chamber 421. When the pressure sensor 46 corresponding to the sealed chamber 421 detects that the pressure of the sealed chamber 421 reaches the target pressure for regulation, the detection signal is sent to the controller, and the controller controls the corresponding electric regulating valve 45 to close and the pressure regulating device 41 to stop operating.

[0047] In order to simplify the pipeline structure and make it more compact and simple, the second ends of all the pressure regulating pipelines 43 are integrated on a hollow box-shaped intermediate adapter component 47, and then the intermediate adapter component 47 is connected to the main pipeline 44, and each electric regulating valve 45 is correspondingly arranged on the second end of the pressure regulating pipeline 43 and exposed from the intermediate adapter component 47. By installing the intermediate adapter component 47 on the inner wall of the host shell of the VR glasses, the second ends of all the pressure regulating pipelines 43 and the electric regulating valves 45 can be installed in a centralized and unified manner, which improves the convenience of assembly.

[0048] The pressure regulating device 41 can also be installed on the intermediate transition component 47, such as on the outer wall of the shell of the intermediate transition component 47, or directly installed on the inner wall of the host shell of the VR glasses.

[0049] To further make the structure of the entire pressure regulating assembly 40 more compact, as Figures 1 to 3 As shown in FIG. 1 , all the pressure regulating pipelines 43 are arranged around the circumferential outer side of the elastic sealing component 42. Figure 3 Taking the four sealed chambers 421 shown as an example, there are corresponding four pressure regulating pipelines 43. The pressure regulating pipelines 43 of the two sealed chambers 421 on the left (i.e., sealed chamber No. ① 421 and sealed chamber No. ② 421) are arranged on the left side of the elastic sealing component 42, and the pressure regulating pipelines 43 of the two sealed chambers 421 on the right (i.e., sealed chamber No. ③ 421 and sealed chamber No. ④ 421) are arranged on the right side of the elastic sealing component 42, so that all the pressure regulating pipelines 43 are distributed as symmetrically as possible on both sides of the circumference of the elastic sealing component 42, so as to reasonably and fully utilize the space, make the structure of the entire pressure regulating assembly 40 more compact, reduce space occupancy, and facilitate installation in the limited space of the R glasses host.

[0050] In some embodiments of the present invention, each pressure regulating pipeline 43 may be provided with a pressure regulating device 41 , and when the pressure of a sealed chamber 421 needs to be regulated, the corresponding pressure regulating device 41 can be operated.

[0051] In some embodiments of the present invention, the pressure regulating device 41 may be a cylinder, a hydraulic cylinder or a piston column, etc. The pressure medium in the sealed chamber 421 may be gas or liquid. To ensure the accuracy of the regulating effect, the pressure regulating assembly 40 should be pressure calibrated in advance to obtain the pressure-deformation curve of the sealed chamber 421.

[0052] In some embodiments of the present invention, a VR glasses is also provided, including a host and the above-mentioned screen adjustment mechanism. The specific structure of the screen adjustment mechanism is as described in the above-mentioned embodiments and the attached drawings. Figures 1 to 3 Since the VR glasses in this embodiment adopt all the technical solutions of all the aforementioned embodiments, they at least have all the beneficial effects brought by the technical solutions of the embodiments, which will not be described one by one here.

[0053] In some embodiments of the present invention, the screen adjustment mechanism is disposed in the inner space of the shell of the host.

[0054] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the above embodiments, it is still possible for a person skilled in the art to modify the technical solutions described in the above embodiments, or to replace some of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions claimed to be protected by the present invention.

Claims

1. A screen adjustment mechanism, characterized in that: include: A lens barrel having a first end and a second end disposed opposite to each other; A lens assembly disposed on the first end of the lens barrel; A display screen, which is arranged on the second end of the lens barrel; A pressure regulating assembly, comprising a pressure regulating device, an annular elastic sealing component and a plurality of pressure regulating pipelines; The elastic sealing component is sealingly connected between the display screen and the second end of the lens barrel, and includes a plurality of sealed chambers arranged along its circumference and isolated from each other, and the sealed chambers can be deformed when the internal pressure changes; the first end of each pressure regulating pipeline is connected to the corresponding sealed chamber, and the second end is connected to the pressure regulating device.

2. The screen adjustment mechanism according to claim 1, characterized in that: The elastic sealing component is formed by connecting a rubber tube or a rubber spring tube end to end, and a plurality of partitions arranged at intervals along the circumferential direction are formed in the tube to form a plurality of the sealing chambers.

3. The screen adjustment mechanism according to claim 2, characterized in that: The elastic sealing component is bonded to the display screen and the second end of the lens barrel.

4. The screen adjustment mechanism according to claim 2, characterized in that: The plurality of sealing chambers are evenly distributed along the circumference of the elastic sealing component.

5. The screen adjustment mechanism according to claim 1, characterized in that: Each of the pressure regulating pipelines is provided with a pressure regulating device.

6. The screen adjustment mechanism according to claim 1, characterized in that: The second ends of the plurality of pressure regulating pipelines are connected to a main pipeline, the number of the pressure regulating device is one, which is arranged on the main pipeline, and each of the pressure regulating pipelines is provided with an electric regulating valve.

7. The screen adjustment mechanism according to claim 6, characterized in that: The pressure regulating assembly further comprises a pressure sensor and a controller, wherein the pressure sensor is arranged in a one-to-one correspondence with the pressure regulating pipeline and is arranged on the sealed chamber or on the pressure regulating pipeline; The pressure sensor, the electric regulating valve and the pressure regulating device are all electrically connected to the controller.

8. The screen adjustment mechanism according to claim 6, characterized in that: The second ends of the plurality of pressure regulating pipelines are integrated on an intermediate adapter box, the intermediate adapter box is connected to the main pipeline, and each of the electric regulating valves is correspondingly arranged on the second end of the pressure regulating pipeline and exposed from the intermediate adapter box.

9. The screen adjustment mechanism according to claim 1, characterized in that: The plurality of pressure regulating pipelines are arranged around the circumferential outer side of the elastic sealing component.

10. A VR glasses, characterized in that: The invention comprises the screen adjustment mechanism according to any one of claims 1 to 9.

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