Head-mounted VR glasses

Abstract

The invention relates to a pair of head-mounted VR glasses, which comprises a glasses body, a fixed frame is arranged on the glasses body, a partition plate is arranged in the glasses body, the top of the partition plate is connected with the fixed frame, glasses lenses are fixed on the partition plate, a movable cavity is formed in the fixed frame, a demisting assembly is arranged in the movable cavity, and the demisting assembly is arranged in the movable cavity. The demisting assembly is used for carrying out demisting treatment on the spectacle lenses by blowing air; the demisting assembly comprises a positioning seat, the positioning seat is fixed on the fixed frame, a first sliding groove is formed in the fixed frame, a movable seat is connected to the first sliding groove in a sliding mode, and a supporting plate is arranged on the movable seat; according to the technical scheme, by arranging the demisting assembly, when the VR glasses are used, the surfaces of the glasses lenses can be subjected to demisting treatment, and the transparency of the glasses lenses can be kept, so that the watching effect is improved, and the user experience is improved.

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 uses a combination of technologies such as simulation technology, computer graphics, human-computer interface technology, multimedia technology, and sensor technology and network technology. It is a new means of human-computer interaction created with the help of computers and the latest sensor technology. VR glasses are a cross-era product that not only allows every enthusiast to experience it with surprise and joy, but also makes them deeply fascinated by the unknown of its birth and prospects.

[0003] At present, 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. In addition, if the lenses are fogged up, it is generally necessary to take off 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, and the wiping method has a poor defogger effect. Summary of the invention

[0004] The present invention provides a head-mounted VR glasses. By setting a defogger assembly, when the glasses lenses are fogged, air is blown by a hair dryer, and the air is blown out from an air blowing pipe through an air inlet pipe and blown toward the glasses lenses. The glasses 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 taken off to eliminate the fog on the glasses lenses, which is not only time-consuming and labor-intensive, but also troublesome to operate and has a poor defogger effect.

[0005] The present invention provides the following technical solution: a head-mounted VR glasses, comprising a glasses body, a fixed frame is arranged on the glasses body, a partition is arranged inside the glasses body, the top of the partition is connected to the fixed frame, a spectacle lens is fixed on the partition, an active cavity is arranged in the fixed frame, a defogger assembly is arranged in the active cavity, and the defogger assembly defogs the spectacle lens by blowing air; The defogger assembly includes a positioning seat, which is fixed on the fixed frame, a first slide groove is provided on the fixed frame, a movable seat is slidably connected to the first slide groove, a support plate is provided on the movable seat, an air blowing pipe for blowing wind toward the eyeglass lens is provided at the end of the support plate, a hair dryer is fixed on the support plate, an output end of the hair dryer is connected to an air intake pipe, and the air intake pipe is connected to the air blowing pipe.

[0006] As an optional solution for the head-mounted VR glasses described in the present invention, a driving motor is arranged in the movable seat, 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 arranged at the inner bottom of the first slide groove, the rotating shaft is slidably connected to the first slide groove, and the gear is meshed with the rack.

[0007] As an optional solution for the head-mounted VR glasses of 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.

[0008] As an optional solution for the head-mounted VR glasses described in the present invention, a connecting block is fixed on the support plate, the air 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 opened on the inclined surface, a sliding block is fixed on the end of the air pipe, and the sliding block is slidably connected to the second sliding groove.

[0009] 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 arranged 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 arranged in the third slide groove, and the end of the core rod is arranged as a curved surface structure.

[0010] 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 the bottom to the top.

[0011] 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.

[0012] As an optional solution for the head-mounted VR glasses described in the present invention, a lifting groove is provided on the movable seat, 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.

[0013] 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.

[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] The present invention has the following beneficial effects: 1. In the head-mounted VR glasses, a defogger assembly is provided. When the glasses are fogged, air is blown through a hair dryer, and the air is blown out from the air blowing pipe through the air inlet pipe and blown toward the glasses. The glasses are defogged by blowing, which is beneficial to maintaining the transparency of the glasses, thereby improving the viewing effect and user experience. At the same time, a driving motor is provided, so that the movable seat can reciprocate on the surface of the positioning seat. When the movable seat reciprocates on the surface of the positioning seat, it can drive the air blowing pipe to blow reciprocally along the glasses, so that the air blowing pipe can blow air to the entire glasses, further increasing the defogger effect of the glasses. 2. In the head-mounted VR glasses, a slider is arranged at the top of the air blowing tube, and a second slide groove is arranged on the inclined surface, so that when the moving seat carries the air blowing tube to blow air back and forth along the eyeglasses, 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 arranged in cooperation, and the air outlet pipe is rotatably connected with the connecting block, so that the air blowing tube can swing up and down while the air blowing tube slides. When the air blowing tube swings up and down, it is convenient to blow air to the entire eyeglasses, which is conducive to improving the defogging effect; 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, so that when the air blowing tube blows air to the eyeglass lens from top to bottom, 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 better blown to the bottom of the eyeglass lens, thereby improving the defogging effect at the bottom of the eyeglass lens, thereby further improving the overall defogging effect of the eyeglass lens; 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 blowing pipe rotates from top to bottom to blow air toward the eyeglasses, the time for the air blowing pipe to blow air toward the lower end of the eyeglasses can be longer than the time for blowing air toward the upper end of the eyeglasses. Therefore, when the opening degree of the air outlet becomes smaller, the effective area of ​​the gas blown out by the air blowing pipe on the eyeglasses becomes smaller, and the demisting effect can be further improved by increasing the action time of the gas, thereby avoiding the situation that 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, resulting in the demisting effect at the upper end of the eyeglasses being better than the demisting effect at the lower end of the eyeglasses. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0017] Figure 2 This is one of the three-dimensional structural schematic diagrams of the defogger component part of the present invention.

[0018] Figure 3 This is the second schematic diagram of the three-dimensional structure of the defogger component of the present invention.

[0019] Figure 4 It is a structural cross-sectional view of the interior of the eyeglass body of the present invention.

[0020] Figure 5 For the present invention Figure 4 Enlarged view of point A in the middle.

[0021] Figure 6 For the present invention Figure 5 Structural cross-section view.

[0022] Figure 7 For the present invention Figure 6 Enlarged view of point B in the middle.

[0023] Figure 8 This is a distribution diagram of the first sliding groove on the surface of the fixing frame of the present invention.

[0024] Fig. 9 It is a cross-sectional view of the internal structure of the first chute of the present invention.

[0025] Fig.10 It is a top view of the ventilation groove part in the eyeglass body of the present invention.

[0026] Fig.11 This is the third schematic diagram of the three-dimensional structure of the defogger component part of the present invention.

[0027] Fig.12 For the present invention Fig.11 Enlarged view of center C.

[0028] Fig.13 This is a distribution diagram of the second chute on the inclined surface of the present invention.

[0029] Fig.14 It is a structural cross-sectional view of the air blowing pipe and the third chute part of the present invention.

[0030] Fig.15 It is a moving path analysis diagram of the moving seat of the present invention.

[0031] Fig.16 It is a schematic diagram of the distribution of the third chute inside the second chute of the present invention.

[0032] In the figure: 1. eyeglass body; 2. fixed frame; 3. partition; 4. eyeglass lens; 5. movable cavity; 6. defogger assembly; 61. positioning seat; 62. first slide groove; 63. movable seat; 64. support plate; 65. air blower; 66. blower; 67. air inlet pipe; 7. drive motor; 8. rotating shaft; 9. gear; 10. rack; 11. ventilation groove; 12. dustproof and breathable net; 13. connecting block; 14. inclined plane; 15. second slide groove; 16. slider; 17. third slide groove; 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 belt; 28. protective eye mask. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0034] For example, see Figure 1-Figure 16 A head-mounted VR glasses, comprising a glasses body 1, a fixed frame 2 is arranged on the glasses body 1, a partition 3 is arranged 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 arranged in the fixed frame 2, a defogger assembly 6 is arranged in the active cavity 5, and the defogger assembly 6 defogs the glasses lens 4 by blowing air; The defogger assembly 6 includes a positioning seat 61, which is fixed on the fixed frame 2. The fixed frame 2 is provided with a first slide groove 62, and a movable seat 63 is slidably connected to the first slide groove 62. The movable seat 63 is provided with a support plate 64, and an air blowing pipe 65 for blowing wind to the eyeglass lens 4 is provided at the end of the support plate 64. A blower 66 is fixed on the support plate 64, and an air inlet pipe 67 is connected to the output end of the blower 66, and the air inlet pipe 67 is connected to the air blowing pipe 65; A driving motor 7 is arranged in the movable seat 63, and a rotating shaft 8 is connected to the output end of the driving motor 7, and a gear 9 is keyed to the end of the rotating shaft 8. A rack 10 is arranged at the inner bottom of the first slide groove 62, and the rotating shaft 8 is slidably connected to the first slide groove 62, and the gear 9 is meshed with the rack 10; In the present technical solution, two groups of defogger components 6 are provided according to the number of eyeglass lenses 4, and each group of defogger components 6 performs defogger treatment on one eyeglass lens 4. When defoggering, the blower 66 is first turned on, and the blower 66 sends gas into the blowing pipe 65 through the air inlet pipe 67, and blows the gas to the surface of the eyeglass lens 4 through the blowing pipe 65, and the fog of the eyeglass lens 4 is eliminated by 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, and the gear 9 is meshed 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, so that the movable seat 63 moves 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 driving motor 7 reverses and drives 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 driving 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 reciprocatingly along the eyeglass lens 4, so that the air blowing pipe 65 can blow air to the entire eyeglass lens 4, thereby increasing the defogging effect of the eyeglass lens 4; Both sides of the eyeglass body 1 are provided with ventilation grooves 11, which are connected to the active cavity 5, and dust-proof and breathable nets 12 are provided at the ends of the ventilation grooves 11; the ventilation grooves 11 are 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 nets 12 can provide dust protection and prevent foreign matter from entering the ventilation grooves 11. Fig.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; The eyeglass body 1 is provided with a head fixing strap 27, and the eyeglass body 1 is also provided with a protective eye mask 28; the head fixing strap 27 is set as an adjustable fixing strap to facilitate 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.

[0035] 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 Figure 1-Figure 16A 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; In the present technical solution, a slider 16 is arranged at the top of the air blowing tube 65, and the slider 16 is arranged as a cylinder, and a second slide groove 15 is arranged 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 slide groove 15, and by setting the second slide groove 15 as a wave-shaped groove, when the slider 16 slides in the second slide groove 15, it cooperates with the connecting block 13, and the air blowing tube 65 is rotatably connected to the connecting block 13 through a pin shaft, and a torsion spring is arranged 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 is convenient for resetting the air blowing tube 65, and when the air blowing tube 65 slides, it can swing up and down, thereby facilitating the blowing of the entire eyeglass lens 4, which is beneficial to improving the defogging effect.

[0036] In the third embodiment, since the air blowing tube 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 tube 65 is performing an up-and-down reciprocating motion, and the air blowing volume and flow rate of the air blowing tube 65 are certain, 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 tube 65 blows toward the upper end of the eyeglass lens 4 that is closer, it is equivalent to a situation where the wind force is larger, and the demisting effect is good. When the air blowing tube 65 blows toward the lower end of the eyeglass lens 4 that is farther away, the demisting effect is relatively poor compared to a situation where the wind force becomes smaller. In view of this problem, this embodiment is an improvement made on the basis of the second embodiment. For details, please refer to Figure 1-Figure 16 A third slide groove 17 is provided inside the second slide groove 15, an air cavity 18 is provided inside 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 inside 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 a curved surface structure; The inner wall of the third chute 17 is set to 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; 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, and a spring 24 is fixed between the positioning ring 23 and the circular ring 22. The spring 24 is sleeved on the circumference of the core rod 20. In the present technical solution, the air blowing tube 65 drives the slider 16 to slide in the second slide groove 15, and at the same time, the air blowing tube 65 drives the end of the core rod 20 to slide in the third slide groove 17. When the slider 16 is located at the lowest point a of the second slide groove 15, the air blowing tube 65 blows air toward 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 (such as Fig.13 As shown in FIG. 1 , the air blowing tube 65 rotates downward, so that the air blowing tube 65 rotates along the top of the eyeglass lens 4 to blow air toward the bottom. Since the inner wall of the third slide groove 17 is set as a curved surface structure, and the distance from the third slide groove 17 to the second slide groove 15 gradually decreases from the lowest point a to the highest point b of the second slide groove 15 (as shown in FIG. Fig.16 As shown in FIG. 1 , when the air blowing tube 65 rotates along the top end of the eyeglass lens 4 to blow air, the slider 16 slides along the lowest point of the second slide groove 15 to the highest point b, driving the core rod 20 to slide from left to right in the third slide groove 17 (as shown in FIG. 1 ). Fig.16 As shown), at this time, due to the resistance of the third slide groove 17, the core rod 20 is prompted to slide downward along the air blowing pipe 65, and the downward sliding of the core rod 20 drives the plug 21 to move downward, and at the same time stretches the spring 24 to store force in the spring 24. During the downward movement of the plug 21, the plug 21 gradually moves toward the air outlet 19, so that the opening at the air outlet 19 gradually becomes smaller, and the pressure is increased by the gradually smaller air outlet 19, so as to adjust 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 degree 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; When the air blowing tube 65 rotates to blow air toward the upper end of the eyeglass lens 4 which is relatively close, the slider 16 slides along the highest end to the lowest 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 to reset the core rod 20. The resetting of the core rod 20 drives the plug 21 to reset. The resetting of the plug 21 resets the opening degree 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.

[0037] 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 defogging effect than the position with a smaller gas action area. Therefore, the defogging effect of the upper end of the eyeglass lens 4 is better than that of the lower end of the eyeglass lens 4. In view of this problem, this embodiment is an improvement made on the basis of the third embodiment. For details, please refer to Figure 1-Figure 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, and the support plate 64 is slidably set on the circumference of the guide rod 26; 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; In this technical solution, the slope of the first chute 62 from the highest point to the lowest point becomes increasingly steep (e.g. Fig. 9 As shown in the figure, when the driving motor 7 drives the gear 9 to rotate, the gear 9 can drive the moving seat 63 to reciprocate up and down along the positioning seat 61 when the first slide groove 62 moves. When the moving seat 63 reciprocates up and down, the lifting groove 25 is provided so that the support plate 64 and the moving seat 63 can slide relative to each other. At the same time, the guide rod 26 is provided, and the guide rod 26 is provided as a prism, so that the support plate 64 can be limited 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 position of the supporting plate 64 remains unchanged, and when the moving seat 63 reciprocates up and down, it will not affect the work of the blowing pipe 65; By keeping the highest point of the first slide groove 62 and the lowest point of the second slide groove 15 in the same vertical plane, and the lowest point of the first slide groove 62 and the highest and lowest points of the second slide groove 15 in the same vertical plane, when the air blowing pipe 65 drives the slider 16 to slide along the lowest point of the second slide groove 15 to the highest point of the second slide groove 15 (that is, the air blowing pipe 65 rotates from the upper end of the eyeglass lens 4 to the lower end of the eyeglass lens 4 to blow air), the gear 9 just moves from the highest point of the first slide groove 62 to the lowest point of the first slide groove 62; by setting the first slide groove 62 as a corrugated groove with a gradually changing slope, the speed of the moving seat 63 changes from fast to slow during the sliding process of the moving seat 63 along the highest point of the first slide groove 62 to the lowest point of the first slide groove 62, and while the speed of the moving seat 63 changes from fast to slow, the air blowing pipe 65 rotates from the upper end of the eyeglass lens 4 to the lower end of the eyeglass lens 4 to blow air, so that the action time of the air blowing pipe 65 blowing to the lower end of the eyeglass lens 4 is longer than the action time of the air blowing pipe 65 blowing to the upper end of the eyeglass lens 4; 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: Fig.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 passing through S3 is greater than the time passing through S2 and greater than the time passing 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 moving seat 63 slides downward along the positioning seat 61, and the moving seat 63 drives the support plate 64 to slide horizontally along the guide rod 26. Since the speed of the moving seat 63 from top to bottom changes from fast to slow, the speed of the support plate 64 sliding along the guide rod 26 for the same horizontal distance also changes from fast to slow. At the same time, the support plate 64 drives the air blowing pipe 65 to move synchronously, so the speed of the air blowing pipe 65 during horizontal movement also changes from fast to slow, so that when the air blowing pipe 65 rotates, the action time on the lower end of the eyeglass lens 4 is longer than the action time on the upper end of the eyeglass lens 4. 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 at the position with a larger gas action area is better than that at the position with a smaller gas action area under the same action time, resulting in the demisting effect at the upper end of the lens 4 being better than that at the lower end of the lens 4.

[0038] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0039] 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 the scope of protection of the present invention.

Claims

1. A head-mounted VR glasses, comprising a glasses body (1), characterized in that: The eyeglass body (1) is provided with a fixed frame (2), a partition (3) is provided inside the eyeglass body (1), the top of the partition (3) is connected to the fixed frame (2), an eyeglass lens (4) is fixed on the partition (3), an active cavity (5) is provided inside the fixed frame (2), a defogger assembly (6) is provided inside the active cavity (5), and the defogger assembly (6) performs defog treatment on the eyeglass lens (4) by blowing air; The defogger assembly (6) comprises a positioning seat (61), the positioning seat (61) is fixed on the fixed frame (2), a first slide groove (62) is provided on the fixed frame (2), 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 end of the support plate (64) is provided with an air blowing pipe (65) for blowing wind 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).

2. The head-mounted VR glasses according to claim 1, characterized in that: A driving motor (7) is arranged inside the movable seat (63), the output end of the driving motor (7) is connected to a rotating shaft (8), the end of the rotating shaft (8) is key-connected to a gear (9), a rack (10) is arranged 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: Ventilation grooves (11) are provided on both sides of the eyeglass body (1), the ventilation grooves (11) are connected to the active cavity (5), and dust-proof and breathable nets (12) are provided at the ends of the ventilation grooves (11).

4. The head-mounted VR glasses according to claim 3, characterized in that: 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 sliding block (16) is fixed to the end of the air blowing pipe (65), and the sliding block (16) is slidably connected to the second sliding groove (15).

5. The head-mounted VR glasses according to claim 4, characterized in that: 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 a curved surface structure.

6. The head-mounted VR glasses according to claim 5, characterized in that: The inner wall of the third sliding groove (17) is arranged as a curved surface structure, and the distance from the third sliding groove (17) to the second sliding groove (15) gradually decreases from the bottom to the top.

7. The head-mounted VR glasses according to claim 6, characterized in that: 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).

8. The head-mounted VR glasses according to claim 7, characterized in that: The movable seat (63) is provided with a lifting groove (25), 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 on both sides of the fixed frame (2), and the support plate (64) is slidably arranged on the circumference of the guide rod (26).

9. The head-mounted VR glasses according to claim 8, characterized in that: The highest point of the first slide groove (62) and the lowest point of the second slide groove (15) are maintained on the same vertical plane, and the lowest point of the first slide groove (62) and the highest point of the second slide groove (15) are maintained on the same vertical plane.

10. The head-mounted VR glasses according to claim 9, characterized in that: The spectacles body (1) is provided with a head fixing strap (27), and the spectacles body (1) is also provided with a protective eye mask (28).

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