Head-mounted VR glasses

Abstract

The present invention relates to a head-mounted VR glasses, comprising a glasses body, a fixed frame being provided on the glasses body, a partition being provided inside the glasses body, a top of the partition being connected to the fixed frame, a lens being fixed on the partition, a movable cavity being provided in the fixed frame, a defogger assembly being provided in the movable cavity, and the defogger assembly defogs the lens by blowing air; the defogger assembly comprises a positioning seat, the positioning seat being fixed to the fixed frame, a first slide groove being provided on the positioning seat, a movable seat being slidably connected to the first slide groove, and a support plate being provided on the movable seat; the present technical solution, by providing the defogger assembly, can defog the surface of the lens when the VR glasses are in use, which is beneficial to maintaining the transparency of the lens, thereby improving the viewing effect and enhancing the user experience.

Description

Technical Field

[0001] The present invention relates to the technical field of VR glasses, and in particular to head-mounted VR glasses. Background Art

[0002] VR glasses, also known as virtual reality glasses, are a product that integrates multiple technologies, including simulation, computer graphics, human-computer interface, multimedia, sensing, and networking. Leveraging computers and the latest sensor technology, they offer a brand-new means of human-computer interaction. VR glasses are a groundbreaking product, not only inspiring wonder and delight in every enthusiast, but also a deep fascination with the unknowns surrounding their creation and future.

[0003] Currently, there are some problems when using head-mounted VR glasses: after using the VR glasses for a period of time, some hot air will be generated. If the hot air comes into contact with the lenses of the VR glasses, condensation will occur, causing the lenses to fog up. In addition, when users use VR glasses, if they sweat through exercise, a large amount of heat will be generated, which will also cause the lenses to fog up, affecting the viewing effect and reducing the user experience. Moreover, if the lenses are fogged up, it is generally necessary to remove the head-mounted VR glasses and wipe them to eliminate the fog on the lenses. This is not only time-consuming and labor-intensive, but also troublesome to operate. In addition, the wiping method has a poor defogging effect. Summary of the Invention

[0004] The present invention provides a pair of head-mounted VR glasses. By providing a defogging assembly, when the lenses of the glasses are fogged, air is blown by a hair dryer, and the air is blown out from an air blow pipe through an air inlet pipe and blown toward the lenses. The lenses are defogged by blowing air, thereby solving the problem mentioned in the above background technology that the head-mounted VR glasses need to be removed to eliminate the fog on the lenses, which is not only time-consuming and labor-intensive, but also troublesome to operate and has a poor defogging effect.

[0005] The present invention provides the following technical solution: a head-mounted VR glasses, comprising a glasses body, a fixed frame provided on the glasses body, a partition provided inside the glasses body, the top of the partition connected to the fixed frame, glasses lenses fixed on the partition, an active cavity provided in the fixed frame, a demisting assembly provided in the active cavity, the demisting assembly demisting the glasses lenses by blowing air;

[0006] The defogger assembly includes a positioning seat, which is fixed on the fixed frame, and a first slide groove is provided on the positioning seat, and a movable seat is slidably connected to the first slide groove, and a support plate is provided on the movable seat, and an air blowing pipe for blowing air toward the eyeglass lens is provided at the end of the support plate, and a hair dryer is fixed on the support plate, and an air intake pipe is provided at the output end of the hair dryer, and the air intake pipe is connected to the air blowing pipe.

[0007] As an optional solution for the head-mounted VR glasses described in the present invention, a driving motor is provided in the movable base, the output end of the driving motor is connected to a rotating shaft, the end key of the rotating shaft is connected to a gear, a rack is provided at the inner bottom of the first slide groove, the rotating shaft is slidably connected to the first slide groove, and the gear is engaged with the rack.

[0008] As an optional solution for the head-mounted VR glasses described in the present invention, ventilation grooves are provided on both sides of the glasses body, the ventilation grooves are connected to the active cavity, and dust-proof and breathable nets are provided at the ends of the ventilation grooves.

[0009] As an optional solution for the head-mounted VR glasses described in the present invention, a connecting block is fixed to the support plate, the air blowing pipe is rotatably connected to the connecting block, an inclined surface is provided on the inner wall of the fixed frame, a second sliding groove is provided on the inclined surface, a slider is fixed on the end of the air blowing pipe, and the slider is slidably connected to the second sliding groove.

[0010] As an optional solution for the head-mounted VR glasses described in the present invention, a third slide groove is opened on the inner side of the second slide groove, an air cavity is opened in the air blowing tube, an air outlet is provided at the end of the air cavity, a core rod is elastically arranged in the air cavity, a plug is fixed at the bottom end of the core rod, the top end of the core rod is slidably set in the third slide groove, and the end of the core rod is set to a curved surface structure.

[0011] As an optional solution for the head-mounted VR glasses described in the present invention, the inner wall of the third slide groove is set to a curved surface structure, and the distance from the third slide groove to the second slide groove gradually decreases from bottom to top.

[0012] As an optional solution for the head-mounted VR glasses described in the present invention, a circular ring is fixed in the air cavity, the core rod is slidably connected to the circular ring, a positioning ring is fixed on the circumference of the core rod, a spring is fixed between the positioning ring and the circular ring, and the spring is sleeved on the circumference of the core rod.

[0013] As an optional solution for the head-mounted VR glasses described in the present invention, a lifting groove is provided on the movable seat, and the end of the support plate is slidably arranged in the lifting groove. A guide rod is fixed between the inner walls on both sides of the fixed frame, and the support plate is slidably arranged on the circumference of the guide rod.

[0014] As an optional solution for the head-mounted VR glasses described in the present invention, the highest point of the first slide groove and the lowest point of the second slide groove are maintained on the same vertical plane, and the lowest point of the first slide groove and the highest point of the second slide groove are maintained on the same vertical plane.

[0015] As an optional solution for the head-mounted VR glasses described in the present invention, the highest point of the first slide groove and the lowest point of the second slide groove are maintained on the same vertical plane, and the lowest point of the first slide groove and the highest point of the second slide groove are maintained on the same vertical plane.

[0016] The present invention has the following beneficial effects:

[0017] 1. In the head-mounted VR glasses, a defogger assembly is provided. When the lenses are fogged, air is blown out through the air blower through the air inlet pipe and blown toward the lenses. The lenses are defogged by blowing air, which is beneficial to maintaining the transparency of the lenses, thereby improving the viewing effect and enhancing the user experience. At the same time, a driving motor is provided to enable the movable base to reciprocate on the surface of the positioning base. When the movable base reciprocates on the surface of the positioning base, it can drive the air blower to blow reciprocally along the lenses, thereby facilitating the air blower to blow air to the entire lenses, further enhancing the defogging effect of the lenses.

[0018] 2. In the head-mounted VR glasses, a slider is provided at the top of the air blowing tube, and a second slide groove is provided on the inclined surface. When the movable seat carries the air blowing tube to blow air back and forth along the lens, the air blowing tube can drive the slider to slide in the second slide groove. When the slider slides in the second slide groove, the connecting block is provided, and the air outlet pipe is rotatably connected to the connecting block. The air blowing tube can swing up and down while it slides. When the air blowing tube swings up and down, it can be convenient to blow air to the entire lens, which is conducive to improving the defogging effect.

[0019] 3. In the head-mounted VR glasses, the air blowing tube drives the slider to slide in the second slide groove, and at the same time, the air blowing tube drives the end of the core rod to slide in the third slide groove, so that the core rod can drive the plug to reciprocate at the air outlet, thereby adjusting the opening size of the air outlet. When the air blowing tube blows air from top to bottom on the glasses, the opening degree of the air outlet can be reduced. When the air outlet becomes smaller, the gas is squeezed, so that the gas can be blown to the bottom of the glasses better, thereby improving the defogging effect at the bottom of the glasses, thereby further improving the defogging effect of the glasses as a whole;

[0020] 4. In the head-mounted VR glasses, by setting the first sliding groove as a corrugated groove with a gradually changing slope, when the air blower rotates from top to bottom to blow air toward the eyeglass lens, the time for the air blower to blow air toward the lower end of the eyeglass lens is longer than the time for blowing air toward the upper end of the eyeglass lens. As a result, when the opening degree of the air outlet becomes smaller, the effective area of ​​the gas blown out by the air blower on the eyeglass lens becomes smaller, and the demisting effect can be further improved by increasing the action time of the gas, thereby avoiding the situation where, under the same action time, the demisting effect is better at the position with a larger gas action area than at the position with a smaller gas action area, resulting in the demisting effect at the upper end of the eyeglass lens being better than the demisting effect at the lower end of the eyeglass lens. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0022] Figure 2 This is one of the three-dimensional structural schematic diagrams of the demisting component part of the present invention.

[0023] Figure 3 This is the second schematic diagram of the three-dimensional structure of the demisting component part of the present invention.

[0024] Figure 4 This is a cross-sectional view of the structure inside the eyeglass body of the present invention.

[0025] Figure 5 For the present invention Figure 4 Enlarged view of point A in the middle.

[0026] Figure 6 For the present invention Figure 5 Structural cross-sectional view.

[0027] Figure 7 For the present invention Figure 6 Enlarged view of point B in the middle.

[0028] Figure 8 This is a distribution diagram of the first sliding groove on the surface of the fixed frame of the present invention.

[0029] Figure 9 This is a cross-sectional view of the internal structure of the first chute of the present invention.

[0030] Figure 10 It is a top view of the ventilation groove portion in the eyeglass body of the present invention.

[0031] Figure 11 This is the third schematic diagram of the three-dimensional structure of the demisting component part of the present invention.

[0032] Figure 12 For the present invention Figure 11 Enlarged view of point C in the middle.

[0033] Figure 13 This is a distribution diagram of the second chute on the inclined surface of the present invention.

[0034] Figure 14 This is a structural cross-sectional view of the air blowing pipe and the third chute portion of the present invention.

[0035] Figure 15 This is a moving path analysis diagram of the mobile seat of the present invention.

[0036] Figure 16 This is a schematic diagram of the distribution of the third chute inside the second chute of the present invention.

[0037] In the figure: 1. Eyeglass body; 2. Fixed frame; 3. Partition; 4. Eyeglass lens; 5. Movable cavity; 6. Demisting assembly; 61. Positioning seat; 62. First slide; 63. Moving seat; 64. Support plate; 65. Air blower; 66. Blower; 67. Air inlet pipe; 7. Driving motor; 8. Rotating shaft; 9. Gear; 10. Rack; 11. Ventilation groove; 12. Dust-proof and breathable net; 13. Connecting block; 14. Inclined surface; 15. Second slide; 16. Slider; 17. Third slide; 18. Air cavity; 19. Air outlet; 20. Core rod; 21. Plug; 22. Ring; 23. Positioning ring; 24. Spring; 25. Lifting groove; 26. Guide rod; 27. Head fixing strap; 28. Protective eye mask. DETAILED DESCRIPTION

[0038] 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.

[0039] For example 1, please refer to Figures 1-16 A head-mounted VR glasses comprises a glasses body 1, a fixed frame 2 is provided on the glasses body 1, a partition 3 is provided inside the glasses body 1, the top of the partition 3 is connected to the fixed frame 2, a glasses lens 4 is fixed on the partition 3, an active cavity 5 is provided in the fixed frame 2, a demisting component 6 is provided in the active cavity 5, and the demisting component 6 defogs the glasses lens 4 by blowing air;

[0040] The demisting assembly 6 includes a positioning seat 61, which is fixed to the fixed frame 2. A first slide groove 62 is formed on the positioning seat 61, and a movable seat 63 is slidably connected to the first slide groove 62. A support plate 64 is provided on the movable seat 63. An air blowing pipe 65 for blowing air toward the eyeglass lens 4 is provided at the end of the support plate 64. A blower 66 is fixed to the support plate 64. The output end of the blower 66 is connected to an air inlet pipe 67, which is connected to the air blowing pipe 65.

[0041] A drive motor 7 is provided in the movable seat 63. The output end of the drive motor 7 is connected to a rotating shaft 8. The end of the rotating shaft 8 is keyed to a gear 9. A rack 10 is provided at the inner bottom of the first chute 62. The rotating shaft 8 is slidably connected to the first chute 62, and the gear 9 is meshed with the rack 10.

[0042] In the present technical solution, two groups of defogger assemblies 6 are provided according to the number of the glasses lenses 4. Each group of defogger assemblies 6 performs defogger processing on one glasses lens 4. When defoggering, the blower 66 is first turned on. The blower 66 sends gas into the blowing pipe 65 through the air inlet pipe 67. The gas is blown toward the surface of the glasses lens 4 through the blowing pipe 65, and the fog of the glasses lens 4 is eliminated by the air flow. Specifically, when defoggering, the driving motor 7 rotates forward, driving the rotating shaft 8 to rotate forward, and the rotating shaft 8 drives the gear 9 to rotate. The gear 9 is engaged with the rack 10, so that the gear 9 moves in the first slide groove 62, so that the rotating shaft 8 moves along the first slide groove 62. The slide groove 62 slides, thereby making the movable seat 63 move on the surface of the positioning seat 61; after the gear 9 moves from one end of the first slide groove 62 to the other end, the drive motor 7 reverses, driving the rotating shaft 8 to rotate in the opposite direction, so that the gear 9 moves back along the first slide groove 62 until it returns to the starting point, and the drive motor 7 repeats the above action, so that the movable seat 63 can reciprocate on the surface of the positioning seat 61. When the movable seat 63 reciprocates on the surface of the positioning seat 61, it can drive the air blowing pipe 65 to blow air back and forth along the eyeglass lens 4, thereby facilitating the air blowing pipe 65 to blow air to the entire eyeglass lens 4, thereby enhancing the defogging effect of the eyeglass lens 4;

[0043] Both sides of the eyeglass body 1 are provided with ventilation grooves 11, which are connected to the active cavity 5, and a dust-proof and breathable mesh 12 is provided at the end of the ventilation groove 11; the ventilation groove 11 is connected to the active cavity 5, so that the hair dryer 66 can maintain air circulation when blowing, thereby increasing the defogging effect, and the dust-proof and breathable mesh 12 can provide dust protection and prevent foreign matter from entering the ventilation groove 11. Figure 10 As shown, the ventilation groove 11 and the active cavity 5 are staggered, so that the light generated at the connection between the ventilation groove 11 and the outside will not be transmitted to the connection between the ventilation groove 11 and the active cavity 5, thereby not affecting the use effect of the head-mounted VR glasses;

[0044] The glasses body 1 is provided with a head fixing strap 27 and a protective eye mask 28; the head fixing strap 27 is set to an adjustable size fixing strap, which is convenient for wearing by different people. The protective eye mask 28 adopts a rubber structure to increase the comfort when wearing, and can fit the human eye contour, play a shading effect, and improve the viewing effect.

[0045] In the second embodiment, when the movable seat 63 carries the air blowing pipe 65 to blow air back and forth along the eyeglass lens 4, the air can only be blown along a horizontal line of the eyeglass lens 4. Since the eyeglass lens 4 is generally a circular structure, the defogging effect at the upper end or the lower end of the eyeglass lens 4 is poor. To address this problem, this embodiment is an improvement made on the basis of the first embodiment. For details, please refer to Figures 1-16 A connecting block 13 is fixed on the support plate 64, and the air blowing pipe 65 is rotatably connected to the connecting block 13. An inclined surface 14 is provided on the inner wall of the fixed frame 2, and a second slide groove 15 is provided on the inclined surface 14. A slider 16 is fixed to the end of the air blowing pipe 65, and the slider 16 is slidably connected to the second slide groove 15;

[0046] The second guide groove 15 is provided on the inclined surface 14 so that when the movable seat 63 carries the air blowing tube 65 to blow air back and forth along the eyeglass lens 4, the air blowing tube 65 can drive the slider 16 to slide in the second guide groove 15. The second guide groove 15 is provided as a wavy groove. Therefore, when the slider 16 slides in the second guide groove 15, it cooperates with the provided connecting block 13, and the air blowing tube 65 is rotatably connected to the connecting block 13 through a pin shaft. A torsion spring is provided on the pin shaft so that when the air blowing tube 65 swings downward, the torsion spring accumulates force, and when the air blowing tube 65 swings upward, the torsion spring releases force, which facilitates the resetting of the air blowing tube 65. When the air blowing tube 65 slides, the air blowing tube 65 can swing up and down, thereby facilitating the blowing of the entire eyeglass lens 4, which is beneficial to improving the defogging effect.

[0047] In the third embodiment, since the air blowing pipe 65 is closer to the upper end of the eyeglass lens 4 and farther from the lower end of the eyeglass lens 4 when the air blowing pipe 65 is performing an up-and-down reciprocating motion, and the air blowing volume and flow rate of the air blowing pipe 65 are constant, the force generated by blowing the gas at the same pressure toward an object that is closer is greater than the force generated by blowing toward an object that is farther away. Therefore, when the air blowing pipe 65 blows toward the upper end of the eyeglass lens 4 that is closer, it is equivalent to a case where the wind force is stronger, and the demisting effect is good. When the air blowing pipe 65 blows toward the lower end of the eyeglass lens 4 that is farther away, the demisting effect is relatively poor compared to a case where the wind force becomes smaller. To address this problem, this embodiment is an improvement made on the basis of the second embodiment. For details, please refer to Figures 1-16 A third chute 17 is provided on the inner side of the second chute 15, an air cavity 18 is provided in the air blowing tube 65, an air outlet 19 is provided at the end of the air cavity 18, a core rod 20 is elastically provided in the air cavity 18, a plug 21 is fixed at the bottom end of the core rod 20, the top end of the core rod 20 is slidably provided in the third chute 17, and the end of the core rod 20 is provided with a curved surface structure;

[0048] The inner wall of the third chute 17 is configured as a curved surface structure, and the distance between the third chute 17 and the second chute 15 gradually decreases from the bottom to the top;

[0049] A circular ring 22 is fixed in the air cavity 18, and the core rod 20 is slidably connected to the circular ring 22. A positioning ring 23 is fixed on the circumference of the core rod 20. A spring 24 is fixed between the positioning ring 23 and the circular ring 22, and the spring 24 is sleeved on the circumference of the core rod 20.

[0050] In this technical solution, the air blowing pipe 65 drives the slider 16 to slide in the second slide groove 15, and at the same time, the air blowing pipe 65 drives the end of the core rod 20 to slide in the third slide groove 17. When the slider 16 is at the lowest point a of the second slide groove 15, the air blowing pipe 65 blows air to the top of the eyeglass lens 4. When the slider 16 slides along the second slide groove 15 and slides to the highest point b (as shown in FIG. Figure 13 As shown), the air blowing pipe 65 rotates downward, so that the air blowing pipe 65 rotates along the top of the eyeglass lens 4 to the bottom end to blow air. Since the inner wall of the third chute 17 is set to a curved surface structure, and the distance from the third chute 17 to the second chute 15 gradually decreases from the lowest point a to the highest point b of the second chute 15 (as shown), the air blowing pipe 65 rotates downward, so that the air blowing pipe 65 rotates along the top of the eyeglass lens 4 to blow air. Figure 16 As shown), when the air blowing tube 65 rotates along the top to the bottom of the eyeglass lens 4 to blow air, the slider 16 slides along the lowest point to the highest point b of the second slide groove 15, driving the core rod 20 to slide from left to right in the third slide groove 17 (as shown). Figure 16 As shown in the figure, at this time, due to the interference of the third slide groove 17, the core rod 20 is prompted to slide downward along the air blowing pipe 65. The downward sliding of the core rod 20 drives the plug 21 to move downward, and at the same time, the spring 24 is stretched, so that the spring 24 accumulates force. During the downward movement of the plug 21, the plug 21 gradually moves toward the air outlet 19, thereby gradually reducing the opening at the air outlet 19. The pressure is increased by the gradually reduced air outlet 19, thereby adjusting the flow rate of the blown gas, so that when the air blowing pipe 65 blows air to the eyeglass lens 4 from top to bottom, the opening of the air outlet 19 can be reduced. After the air outlet 19 becomes smaller, the gas is squeezed, so that the gas can be better blown to the bottom of the eyeglass lens 4, thereby improving the defogging effect at the bottom of the eyeglass lens 4, thereby further improving the overall defogging effect of the eyeglass lens 4;

[0051] When the air blowing tube 65 rotates to blow air toward the upper end of the closer eyeglass lens 4, the slider 16 slides along the highest end to the bottom end of the second slide groove 15. At this time, the core rod 20 slides from top to bottom in the third slide groove 17. Since the end of the core rod 20 loses the resistance of the inclined surface 14 of the third slide groove 17, the spring 24 releases the force, causing the core rod 20 to reset. The reset of the core rod 20 drives the reset of the plug 21. The reset of the plug 21 resets the opening of the air outlet 19, so that when the air blowing tube 65 blows air to the eyeglass lens 4 from bottom to top, the flow rate of the air outlet 19 is restored.

[0052] In the fourth embodiment, since the opening of the air outlet 19 becomes smaller, the air outlet cross-section of the air outlet 19 also becomes smaller, and the gas action area of ​​the air blowing pipe 65 toward the upper end of the eyeglass lens 4 is larger than the gas action area of ​​the air blowing pipe 65 toward the lower end of the eyeglass lens 4. Under the same action time, the position with a larger gas action area has a better demisting effect than the position with a smaller gas action area. Therefore, the demisting effect of the upper end of the eyeglass lens 4 is better than that of the lower end of the eyeglass lens 4. To address this problem, this embodiment is an improvement made on the basis of the third embodiment. For details, please refer to Figures 1-15 The first slide groove 62 is set as a corrugated groove with a gradually changing slope. The movable seat 63 is provided with a lifting groove 25. The end of the support plate 64 is slidably set in the lifting groove 25. A guide rod 26 is fixed between the inner walls of both sides of the fixed frame 2. The support plate 64 is slidably set on the circumference of the guide rod 26.

[0053] The highest point of the first chute 62 and the lowest point of the second chute 15 are kept on the same vertical plane, and the lowest point of the first chute 62 and the highest and lowest points of the second chute 15 are kept on the same vertical plane;

[0054] In this technical solution, the slope of the first chute 62 from the highest point to the lowest point becomes increasingly steep (e.g. Figure 9 As shown), when the driving motor 7 drives the gear 9 to rotate, so that the gear 9 moves in the first slide groove 62, it can drive the movable seat 63 to reciprocate up and down along the positioning seat 61. When the movable seat 63 reciprocates up and down, the lifting groove 25 is provided, so that the support plate 64 and the movable seat 63 can slide relative to each other. At the same time, the guide rod 26 is provided, and the guide rod 26 is set as a prism to limit the support plate 64 so that the support plate 64 can only move horizontally along the guide rod 26, thereby ensuring that the position of the blowing pipe 65 relative to the support plate 64 remains unchanged, and when the movable seat 63 reciprocates up and down, it will not affect the work of the blowing pipe 65;

[0055] When the cam 65 is in the downward direction, the lower limit of the cam 65 is set, and the lower limit of the cam 65 is set, so that the cam 65 moves from the upper end of the cam 62 to the lower end of the cam 62.

[0056] In the process of the moving seat 63 sliding along the highest point of the first slide groove 62 to the lowest point of the first slide groove 62, the principle of the speed of the moving seat 63 changing from fast to slow is specifically as follows: Figure 15 As shown, the total length of the path from the highest point of the first chute 62 to the lowest point of the first chute 62 is divided into three sections, namely S1, S2, and S3. Because the inclination of the first chute 62 gradually increases, the length of the path S3>S2>S1, and the speed at which the drive motor 7 drives the gear 9 to rotate remains unchanged, so the time it takes to pass through S3 is greater than the time it takes to pass through S2, which is greater than the time it takes to pass through S1. According to the above principle, when the drive motor 7 rotates at a constant speed, when the gear 9 slides from the highest point of the first chute 62 to the lowest point, The movable seat 63 slides downward along the positioning seat 61, and the movable seat 63 drives the support plate 64 to slide horizontally along the guide rod 26. Since the speed of the movable seat 63 decreases from high to low, the speed of the support plate 64 when sliding the same horizontal distance along the guide rod 26 also decreases. At the same time, the support plate 64 drives the air blowing tube 65 to move synchronously. Therefore, the speed of the air blowing tube 65 when it moves horizontally also decreases. When the air blowing tube 65 rotates, the time it acts on the lower end of the eyeglass lens 4 is longer than that on the upper end of the eyeglass lens 4.

[0057] In summary, in the present technical solution, when the opening degree of the air outlet 19 becomes smaller, the effective area of ​​the gas blown out by the air pipe 65 on the lens 4 becomes smaller, and the demisting effect is further improved by increasing the action time of the gas, thereby avoiding the situation where the demisting effect of the position with a larger gas action area is better than that of the position with a smaller gas action area under the same action time, resulting in the demisting effect of the upper end of the lens 4 being better than that of the lower end of the lens 4.

[0058] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0059] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A head-mounted VR glasses, comprising a glasses body (1), characterized in that: The spectacles body (1) is provided with a fixed frame (2), a partition (3) is provided inside the spectacles body (1), the top of the partition (3) is connected to the fixed frame (2), a spectacle lens (4) is fixed on the partition (3), an active cavity (5) is provided inside the fixed frame (2), a defogging assembly (6) is provided inside the active cavity (5), and the defogging assembly (6) performs defogging on the spectacle lens (4) by blowing air; The demisting assembly (6) includes a positioning seat (61), the positioning seat (61) is fixed on the fixed frame (2), a first sliding groove (62) is provided on the positioning seat (61), a movable seat (63) is slidably connected to the first sliding groove (62), a support plate (64) is provided on the movable seat (63), an end of the support plate (64) is provided with an air blowing pipe (65) for blowing air toward the eyeglass lens (4), a blower (66) is fixed on the support plate (64), an output end of the blower (66) is connected to an air inlet pipe (67), and the air inlet pipe (67) is connected to the air blowing pipe (65); Both sides of the eyeglass body (1) are provided with ventilation grooves (11), the ventilation grooves (11) are connected to the active cavity (5), and the ends of the ventilation grooves (11) are provided with dustproof and breathable nets (12); A connecting block (13) is fixed on the support plate (64), the air blowing pipe (65) is rotatably connected to the connecting block (13), an inclined surface (14) is provided on the inner wall of the fixed frame (2), a second sliding groove (15) is provided on the inclined surface (14), a slider (16) is fixed to the end of the air blowing pipe (65), and the slider (16) is slidably connected to the second sliding groove (15); A third slide groove (17) is provided on the inner side of the second slide groove (15), an air cavity (18) is provided in the air blowing pipe (65), an air outlet (19) is provided at the end of the air cavity (18), a core rod (20) is elastically provided in the air cavity (18), a plug (21) is fixed at the bottom end of the core rod (20), the top end of the core rod (20) is slidably provided in the third slide groove (17), and the end of the core rod (20) is provided with an arc surface structure.

2. The head-mounted VR glasses according to claim 1, characterized in that: A driving motor (7) is provided in the movable seat (63), the output end of the driving motor (7) is connected to a rotating shaft (8), the end key of the rotating shaft (8) is connected to a gear (9), a rack (10) is provided at the inner bottom of the first sliding groove (62), the rotating shaft (8) is slidably connected to the first sliding groove (62), and the gear (9) is meshed with the rack (10).

3. The head-mounted VR glasses according to claim 1, characterized in that: The inner wall of the third chute (17) is configured as a curved surface structure, and the distance between the third chute (17) and the second chute (15) gradually decreases from the bottom to the top.

4. The head-mounted VR glasses according to claim 3, wherein: A circular ring (22) is fixed in the air cavity (18), the core rod (20) is slidably connected to the circular ring (22), a positioning ring (23) is fixed on the circumference of the core rod (20), a spring (24) is fixed between the positioning ring (23) and the circular ring (22), and the spring (24) is sleeved on the circumference of the core rod (20).

5. The head-mounted VR glasses according to claim 4, characterized in that: A lifting groove (25) is provided on the movable seat (63), and the end of the support plate (64) is slidably arranged in the lifting groove (25). A guide rod (26) is fixed between the inner walls of both sides of the fixed frame (2), and the support plate (64) is slidably arranged on the circumference of the guide rod (26).

6. The head-mounted VR glasses according to claim 5, characterized in that: The highest point of the first chute (62) and the lowest point of the second chute (15) are maintained on the same vertical plane, and the lowest point of the first chute (62) and the highest point of the second chute (15) are maintained on the same vertical plane.

7. The head-mounted VR glasses according to claim 6, characterized in that: The spectacles body (1) is provided with a head fixing belt (27), and the spectacles body (1) is also provided with a protective eye mask (28).

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