Optical imaging lens of VR glasses

Abstract

The invention relates to the technical field of VR equipment, in particular to an optical imaging lens of VR glasses, which comprises a mounting frame and a VR glasses main body for fixing the mounting frame, two lens main bodies and a driving gear are arranged on the mounting frame, and lenses, nuts, racks and ball screws rotationally mounted in the nuts are arranged on the two lens main bodies. And a small motor is arranged in the VR glasses main body. The rotating speed ratio of the two ball screws can be changed through the speed change assembly, the distance between the two lens bodies and the eyes of a user can be rapidly and adaptively adjusted, and an image observed by the eyes of the user can be rapidly in a clear state according to the actual myopia degree of the eyes; according to the VR glasses main body, the lens main body can be conveniently adjusted to the position where the lens main body is respectively focused with the two eyes, the adjusting efficiency is improved, when other people use the VR glasses main body to carry out visual training, the position of the lens main body can be adjusted according to own degrees, and the applicability of the lens main body is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of VR equipment, and in particular to an optical imaging lens for VR glasses. Background Art

[0002] VR, or virtual reality technology, allows users to immerse themselves in a virtual environment by simulating the sensory experience of the real world. One of the core technologies to achieve VR technology is optical imaging technology, which can project virtual scenes into the eyes of users, giving them a realistic visual experience.

[0003] VR glasses include display, lens, processor, sensor, controller, and power supply. Lens is the main component of optical imaging lens. The principle of VR glasses is similar to that of our eyes. Two lenses are equivalent to eyes, but they are far less "intelligent" than human eyes. In addition, VR glasses generally split the content into two halves and realize superimposed imaging through lenses. This often causes the center of the pupil of the human eye, the center of the lens, and the center of the screen (after splitting the screen) to be not in a straight line, resulting in poor visual effects, unclearness, deformation and many other problems. The ideal state is that the center of the pupil of the human eye, the center of the lens, and the center of the screen (after splitting the screen) should be in a straight line. At this time, it is necessary to adjust the "pupillary distance" of the lens to make it coincide with the pupil distance of the human eye, and then use software to adjust the center of the picture to ensure that the three points are in a straight line, so as to obtain the best visual effect. Some domestic equipment is adjusted physically, and needs to be adjusted through the knob on the top;

[0004] With the development of VR technology, some companies have innovatively used virtual reality technology to treat diseases such as amblyopia through automatic viewing angle adjustment and brightness adjustment of VR devices. In the process of using VR glasses for treatment, the owner of the VR glasses adjusts the initial parameters of the lens according to his or her own condition, plays the corresponding video through the program, and trains by adjusting the distance, size, and position of the focus target. Mechanical variable focus is the mainstream solution for focal length adjustment, which can alleviate the dizziness that occurs during the use of VR glasses. It drives a precision gear set through a small motor, and adjusts the spacing between the two sets of lens components of the VR glasses to match the user's pupil distance. In order to ensure binocular synchronization training and reduce the overall weight of the VR device, a single small motor is usually used for driving. When there is a large difference in the ratio between the binocular degrees of different users, the adjustment of binocular adaptation training will change greatly, and a single small motor cannot meet different adjustment needs.

[0005] To this end, an optical imaging lens for VR glasses is proposed to solve the problem that the focal length cannot be quickly adjusted by a single motor when there is a large difference in the ratio between the diopter of the user's eyes. Summary of the invention

[0006] The purpose of the present invention is to provide an optical imaging lens for VR glasses, which changes the rotation speed ratio of two ball screws through a speed change component, quickly adaptively adjusts the distance between the two lens bodies and the user's eyes, and quickly adjusts the two lens bodies to positions that focus on the eyes respectively.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] A VR glasses optical imaging lens comprises a mounting frame and a VR glasses body for fixing the mounting frame, wherein the mounting frame is provided with two lens bodies and a driving gear, and the two lens bodies are provided with lenses, nuts, racks and a ball screw rotatably installed in the nut, and a small motor is provided in the VR glasses body, and the output end of the small motor is provided with a first pulley, a second pulley and a first transmission belt, the first pulley is connected to the driving gear, and the second pulley is connected to one of the ball screws, and the front end of the small motor is provided with a clutch assembly for controlling the driving gear and the two ball screws to operate independently, which can realize that the driving gear and the ball screw are driven independently by the small motor, and the pupil distance and focal length of the lens body can be adjusted by the same motor respectively, thereby saving the number of driving sources used and reducing The overall weight of the VR device is reduced, and the corresponding components are made of lightweight materials, which further reduces the weight of the VR device, reduces the burden on users during wearing, and improves the user experience. The ends of the two ball screws are also provided with a speed change component for adjusting the speed ratio of the ball screws, and the speed change component includes a driving wheel and a driven wheel, and the driving wheel and the driven wheel are respectively connected to one of the ball screws, and the driving wheel and the driven wheel are jointly sleeved with a second transmission belt, and the driving gear is provided with an adjustment component for automatically adjusting the tightness of the second transmission belt. During the pupil distance adjustment process, the distance between the ball screws in the nut changes with the adjustment of the pupil distance. At this time, the tightness of the second transmission belt will change accordingly. The adjustment component can adaptively adjust the tightness of the second belt during the pupil distance adjustment process, so as to ensure the speed change effect of the speed change component.

[0009] Through the above scheme, when a user with a difference in the ratio of myopia between both eyes uses the VR lens for vision training, the ball screw is driven by a small motor to make the lens body slide along the ball screw to adjust the focal length of the lens body. At the same time, the speed ratio of the two ball screws is changed by the speed change component, so that the distance between the two lens bodies and the user's eyes can be quickly adaptively adjusted, and the image observed by the user's eyes can be quickly made clear according to the actual myopia degree of both eyes, so that the two lens bodies can be quickly adjusted to the position focusing on the two eyes respectively, thereby improving the adjustment efficiency. When other people borrow the VR glasses body for vision training, they can also adjust the position of the lens body according to their own degree, thereby improving the applicability of the lens body.

[0010] Optionally, the ball screw can be replaced by a threaded screw. The ball screw uses rolling friction to transmit the effect and has higher precision, while the threaded screw uses sliding friction for adjustment and has poor precision. In the case of VR glasses with short distances such as focal length and certain requirements for precision, it is more appropriate to use a ball screw. The ball screw uses rolling friction, and the noise during the transmission process is low, which can reduce noise disturbance when the user is immersing in the VR device. At the same time, the ball screw has lower mechanical wear and a longer service life than a threaded screw, so it is more appropriate to use a ball screw.

[0011] Preferably, the clutch assembly includes a first lever, a bearing sleeve, an active ratchet gear, a first ratchet gear, and a second ratchet gear. The active ratchet gear is slidably mounted on the output shaft of the small motor, and the inner wall of the active ratchet gear is embedded in the output shaft of the small motor. The first ratchet gear is fixedly mounted on the first pulley. The central axes of the first pulley and the first ratchet gear are both rotatably sleeved on the output shaft of the small motor. The second ratchet gear is connected to the driving gear. The two ends of the active ratchet gear are respectively meshed with the first ratchet gear and the second ratchet gear. The bearing sleeve is sleeved on the outer wall of the active ratchet gear. The first lever is fixedly mounted on the top end of the bearing sleeve, and the top end of the first lever extends outside the VR glasses body.

[0012] Through the above scheme, the first lever pushes the active ratchet gear to engage with the first ratchet gear and the second ratchet gear respectively, so that the driving gear and the ball screw can be driven separately, and the pupil distance and focal length of the lens body can be adjusted by the same small motor, thereby reducing the cost of use.

[0013] Optionally, the sliding mode of the active ratchet gear can be driven by an electric method such as an electric telescopic rod, but in order to reduce the weight of the equipment and the production cost, the first lever is manually pushed to make the active ratchet gear mesh with the first ratchet gear and the second ratchet gear respectively.

[0014] Preferably, the central axis of the driving gear rotatably mounted on the mounting frame is made of damping material, which can increase the friction force that needs to be overcome when the driving gear rotates, and can ensure the stability of the driving gear when it is stationary. The two racks are respectively located on both sides of the driving gear, and the two side walls of the end of the driving gear tooth are tightly fitted with the inner wall of the rack gap, and the three teeth on the driving gear are in a meshing state with the rack, and the length of the driving gear is the same as the length of the ball screw.

[0015] Through the above scheme, when the pupil distance of the lens body is adjusted and the ball screw is driven to adjust the focal length of the lens body, the stopped driving gear can provide guidance for the nut on the outside of the ball screw and the lens body, thereby ensuring that the lens body slides smoothly during the adjustment process, avoiding the use of additional guide components, and reducing production costs.

[0016] Preferably, the speed change assembly further includes a strong spring, a second lever, and a disc, the driving wheel includes a first movable half wheel and a first fixed half wheel symmetrically arranged, the driven wheel includes a second movable half wheel and a second fixed half wheel symmetrically arranged, the outer walls of the first fixed half wheel and the second fixed half wheel are respectively connected to the ball screw, and the central axis of the first fixed half wheel is fixedly connected to the central axis of the second pulley, the second movable half wheel is slidably mounted on the central axis of the second fixed half wheel, the first movable half wheel is slidably mounted on the connecting shaft of the second pulley and the first fixed half wheel, and the disc is fixedly mounted on the center axis of the second pulley On the shaft, the strong spring is located between the disc and the first movable half wheel, the first movable half wheel, the first fixed half wheel, the second movable half wheel and the second fixed half wheel have the same diameter and the inner walls are all set to conical surfaces, the cross-section of the second transmission belt is designed to be trapezoidal, which can always keep in contact with the second transmission belt when the inner diameters of the driving wheel and the driven wheel change, and the two side surfaces of the second transmission belt are in contact with the inner walls of the first movable half wheel, the first fixed half wheel, the second movable half wheel and the second fixed half wheel, the bottom end of the second lever is fixedly connected to the central axis of the second movable half wheel, and the top end of the second lever extends to the outside of the VR glasses body.

[0017] Through the above scheme, the trapezoidally arranged second transmission belt can fit with the conical side walls of the first movable half-wheel, the first fixed half-wheel, the second movable half-wheel and the second fixed half-wheel, thereby ensuring the stability of the transmission. By changing the distance between the second movable half-wheel and the second fixed half-wheel, the inner diameter of the driven wheel can be changed. When the length of the transmission belt remains unchanged, the inner diameter of the driving wheel will also change accordingly, thereby realizing the adjustment of different speed ratios of the two ball screws, so that people with different myopia degrees can adjust the focal length of the lens body.

[0018] Preferably, the adjustment assembly includes a cam, an auxiliary pulley, and a connecting rod. The central axes at both ends of the cam are fixedly connected to the central axis of the driving gear and the central axis of the second ratchet gear, respectively. The top end of the connecting rod is rotatably mounted on the edge of the inner wall of the cam, the central axis of the auxiliary pulley is rotatably mounted on the bottom end of the connecting rod, and the bottom end of the second transmission belt is clamped on the auxiliary pulley. The initial position of the connecting rod is located at the center of the right edge of the cam.

[0019] Through the above scheme, the second transmission belt will be in a loose or tightened state during the adjustment of the interpupillary distance. When the interpupillary distance of the lens body is adjusted by rotating the driving gear, the cam will rotate accordingly with the rotation of the driving gear. When the driving gear rotates clockwise to drive the interpupillary distance of the two lens bodies to shrink, the second transmission belt will be loosened. At this time, the auxiliary pulley at the bottom end of the cam will slide upward, and the auxiliary pulley will tighten the loosened second transmission belt. Similarly, when the interpupillary distance of the lens body becomes larger, the second transmission belt will be tightened. At this time, the auxiliary pulley at the bottom end of the cam will slide downward. At this time, the driving wheel and the driven wheel at the two gradually moving away ends of the ball screw will tighten the second transmission belt that was loosened during the downward movement of the auxiliary pulley, so that the second transmission belt can be automatically maintained in the set state during the adjustment of the interpupillary distance, so as to ensure the normal operation of the speed change assembly, and at the same time ensure the stability of the tightness of the second transmission belt, reduce the time consumed in adjusting the second transmission belt.

[0020] Optionally, the cam and the connecting rod can also be replaced by elastic components such as springs. The elasticity of the spring can be used to make the rotating axis of the auxiliary pulley elastically slide up and down in the process of changing the tightness of the second transmission belt according to the change in pupil distance within a certain range, thereby completing automatic adjustment of the tightness. However, in this case, since the distance between the first movable half-wheel and the first fixed half-wheel is adaptively adjusted by a strong spring, the use of elastic components such as springs will affect the setting state of the second transmission belt, further affecting the speed change effect. Therefore, this case uses a cam, which drives the auxiliary pulley to automatically adjust the tightness of the second transmission belt when it rotates synchronously with the driving gear.

[0021] Preferably, the VR glasses body also includes a cushioning mask, a light-shielding sealing ring, an observation tube, a fastening belt, a control button and an integrated circuit board, a display screen, and a battery arranged at the outer wearing part thereof, and the center of gravity of the VR glasses body is located at the outer wearing part thereof, the lens body is inserted in the observation tube, the light-shielding sealing ring is designed to be annular, the outer wall of the light-shielding sealing ring is fixedly connected to the inner wall of the observation tube, and the inner wall of the light-shielding sealing ring is sleeved on the lens body.

[0022] Through the above scheme, the center of gravity is located at the wearing part of the VR glasses main body, which will greatly improve the user's wearing experience and can avoid excessive load on the user's face during wearing. The light-shielding sealing ring can always fit with the inner wall of the lens body during the adjustment of the lens body, which can ensure the sealing and light-shielding properties of the lens body, avoid external light from entering the VR glasses main body and affect the viewing of the image on the display screen, which can further improve the user experience.

[0023] Preferably, a movable groove adapted to the movable trajectory of the first lever and the movable trajectory of the second lever is opened on the top of the VR glasses body, an air intake pipe connected to the inside of the VR glasses body is opened on the side wall at the top of the movable groove, and the air intake pipe is designed to be S-shaped, and a blackout cloth is fixedly installed on the bottom end of the movable groove, and the blackout cloth is made of elastic blackout material, and the inner walls of the two blackout cloths are respectively in contact with the first lever and the second lever.

[0024] Through the above scheme, the air intake pipe can ensure that the air enters the VR glasses body along the air intake pipe, while the S-shaped tube body can prevent external light from directly irradiating the VR glasses body. The blackout cloth can further ensure the blackout property of the VR glasses body, and the blackout cloth made of elastic material can always maintain the blackout property of the movable groove during the sliding of the first lever and the second lever, which can further improve the user experience.

[0025] Preferably, the outer sides of the two ball screws are both covered with silicone sleeves, which can reduce the noise generated by the ball screw during the contact process with the nut, and at the same time avoid direct contact between the balls in the nut and the ball screw, thereby reducing the wear of the ball screw. The connection between the ball screw and the first fixed half wheel and the second fixed half wheel is provided with a cylinder, and turbine blades are rotatably installed in the cylinder. The cylinder is also provided with a plurality of open grooves, and a through hole connected to the cylinder is provided at the center of the ball screw, and the through hole is opened through the left side of the ball screw, and the left side of the ball screw is also covered with an exhaust pipe. The top end of the exhaust pipe extends to the outside of the VR glasses body, the exhaust pipe is L-shaped, and a plurality of spoilers are staggered on the inner wall of the top end of the exhaust pipe. The plurality of spoilers are tilted upward, and the topmost spoiler covers the top end of the exhaust pipe and extends to the outside of the exhaust pipe. The L-shaped exhaust pipe can prevent light from directly entering the VR glasses body. Since the counterclockwise rotation of the ball screw cannot cause the turbine blades to generate gas flow, the outermost spoiler can prevent the exhausted hot air from flowing back into the VR glasses body during the counterclockwise rotation of the ball screw. At the same time, the spoiler can further ensure the light shielding property.

[0026] Through the above scheme, in the process of the turbine blades rotating with the ball screw, the turbine blades can drive the hot air in the VR glasses body to enter the exhaust pipe through the through hole in the ball screw, and further be discharged through the exhaust pipe to complete the ventilation work. In addition, due to the characteristic that the ball screw needs to rotate continuously during the vision training process, the rotation of the ball screw drives the turbine blades to rotate to complete the ventilation, saving the driving source, and at the same time avoiding the brightness reduction and color deviation of the display screen in the VR glasses body caused by hot air, which can ensure that the user can clearly identify the image on the display screen during the training process, thereby ensuring the training effect.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] 1. The speed ratio of the two ball screws can be changed through the speed change component, and the distance between the two lens bodies and the user's eyes can be quickly adaptively adjusted. The image observed by the user's eyes can be quickly made clear according to the actual myopia degree of the eyes, and the two lens bodies can be quickly adjusted to the positions that focus on the eyes respectively, thereby improving the adjustment efficiency. When other people borrow the VR glasses body for vision training, they can also adjust the position of the lens body according to their own degrees, thereby improving the applicability of the lens body. In the process of clockwise rotation of the ball screw, the turbine blades can rotate clockwise with the ball screw, which can drive the hot air in the VR glasses body to be discharged, completing ventilation and saving the driving source. At the same time, it can avoid the brightness reduction and color deviation of the display screen in the VR glasses body caused by hot air, so that users can clearly identify the image on the display screen and ensure the training effect.

[0029] 2. By setting a clutch assembly, the first lever pushes the active ratchet gear to engage with the first ratchet gear and the second ratchet gear respectively, so that the driving gear and the ball screw can be driven separately, and the pupil distance and focal length of the lens body can be adjusted by the same small motor, thereby reducing the cost of use. When the pupil distance of the lens body is adjusted, the ball screw is driven to adjust the focal length of the lens body, and the stopped driving gear can provide guidance for the nut on the outside of the ball screw and the lens body, thereby ensuring that the lens body slides smoothly during the adjustment process, avoiding the use of additional guide components, and reducing production costs.

[0030] 3. By setting an adjustment component, since the second transmission belt may be in a loose or tightened state during the adjustment of the pupil distance, and when the pupil distance of the lens body is adjusted by rotating the driving gear, the cam will rotate accordingly with the rotation of the driving gear. When the driving gear rotates clockwise to drive the pupil distance of the two lens bodies to shrink, the second transmission belt will be loosened. At this time, the auxiliary pulley at the bottom end of the cam will slide upward, and the auxiliary pulley will tighten the loosened second transmission belt. Similarly, when the pupil distance of the lens body becomes larger, the second transmission belt will be tightened. At this time, the auxiliary pulley at the bottom end of the cam will slide downward. At this time, the driving wheel and the driven wheel at the ends of the two gradually moving away ball screws will tighten the second transmission belt that was loosened during the downward movement of the auxiliary pulley, so that the second transmission belt can be automatically maintained in the set state during the adjustment of the pupil distance, so as to ensure the normal operation of the speed change component, and reduce the time consumed in adjusting the second transmission belt while ensuring the stability of the tightness of the second transmission belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the structure in the mounting frame of the present invention;

[0032] Figure 2 It is a schematic diagram of the overall structure of the VR glasses of the present invention;

[0033] Figure 3 for Figure 2 Cross-section of the middle BB;

[0034] Figure 4 It is a structural schematic diagram of the end of the lens body of the present invention;

[0035] Figure 5 for Figure 3 A magnified view of middle;

[0036] Figure 6 It is a structural schematic diagram of one side of the output end of the small motor of the present invention;

[0037] Figure 7 It is a schematic diagram of a partial cross-sectional structure of the central axis of the first movable half wheel of the present invention;

[0038] Figure 8 It is a schematic diagram of the structure of the other side of the output end of the small motor of the present invention;

[0039] Fig. 9 It is a schematic diagram of a partial cross-sectional structure of the central axis of the second pulley of the present invention;

[0040] Fig.10 It is a schematic diagram of the cross-sectional structure of the exhaust pipe of the present invention.

[0041] In the figure: 1, mounting frame; 101, lens body; 102, lens; 103, nut; 104, rack; 105, driving gear; 2, clutch assembly; 201, first lever; 202, bearing sleeve; 203, active ratchet gear; 204, first ratchet gear; 205, second ratchet gear; 3, small motor; 301, first pulley; 302, second pulley; 303, first transmission belt; 4, adjustment assembly; 401, cam; 402, auxiliary pulley; 403, connecting rod; 5, speed change assembly; 501, active wheel; 5011, first movable half wheel; 5012, first fixed half wheel; 502, driven wheel; 5021, The second movable half wheel; 5022, the second fixed half wheel; 503, the second transmission belt; 504, the strong spring; 505, the second lever; 506, the disc; 6, the ball screw; 601, the silicone sleeve; 602, the cylinder; 6021, the turbine blade; 6022, the opening groove; 603, the exhaust pipe; 6031, the spoiler; 604, the through hole; 7, the VR glasses body; 701, the movable groove; 7011, the air intake pipe; 7012, the shading cloth; 702, the buffer mask; 703, the shading sealing ring; 704, the observation tube; 705, the fastening belt; 706, the control button; 707, the integrated circuit board; 708, the display screen; 709, the battery. DETAILED DESCRIPTION

[0042] 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.

[0043] See also Figures 1 to 10 The present invention provides a VR glasses optical imaging lens, and the technical solution is as follows:

[0044] A VR glasses optical imaging lens, comprising a mounting frame 1 and a VR glasses body 7 for fixing the mounting frame 1, wherein the mounting frame 1 is provided with two lens bodies 101 and a driving gear 105, and the two lens bodies 101 are both provided with a lens 102, a nut 103, a rack 104, and a ball screw 6 rotatably installed in the nut 103, and a small motor 3 is provided in the VR glasses body 7, and the output end of the small motor 3 is provided with a first pulley 301, a second pulley 302 and a first transmission belt 303, wherein the first pulley 301 is connected to the driving gear 105, and the second pulley 302 ... The front end of the small motor 3 is connected to one of the ball screws 6, and a clutch assembly 2 for controlling the driving gear 105 and the two ball screws 6 to operate independently is provided. The ends of the two ball screws 6 are also provided with a speed change assembly 5 for adjusting the speed ratio of the ball screws 6. The speed change assembly 5 includes a driving wheel 501 and a driven wheel 502, and the driving wheel 501 and the driven wheel 502 are respectively connected to one of the ball screws 6. The driving wheel 501 and the driven wheel 502 are jointly sleeved with a second transmission belt 503, and the driving gear 105 is provided with an adjustment assembly 4 for automatically adjusting the tightness of the second transmission belt 503.

[0045] In this embodiment, the small motor 3 can respectively drive the driving gear 105 and one of the ball screws 6 to operate through the first pulley 301, the second pulley 302 and the first transmission belt 303, and the two ball screws 6 are linked with the second transmission belt 503 through the driving wheel 501 and the driven wheel 502. The speed change component 5 can quickly and adaptively adjust the distance between the two lens bodies 101 and the user's eyes, so that the lens body 101 can be adjusted to a position that focuses on the eyes respectively, and the clutch component 2 can realize the separate driving of the driving gear 105 and the ball screw 6, so that the pupil distance and focal length of the lens body 101 are adjusted by the same small motor 3. At the same time, the second transmission belt 503 can be automatically maintained in a set state during the adjustment of the pupil distance through the adjustment component 4, so that the normal operation of the speed change component 5 can be guaranteed. While ensuring the stability of the tightness of the second transmission pulley 503, the time consumed in adjusting the second transmission belt 503 is reduced.

[0046] As an embodiment of the present invention, refer to Figure 8The clutch assembly 2 includes a first lever 201, a bearing sleeve 202, an active ratchet gear 203, a first ratchet gear 204, and a second ratchet gear 205. The active ratchet gear 203 is slidably mounted on the output shaft of the small motor 3, and the inner wall of the active ratchet gear 203 is embedded in the output shaft of the small motor 3. The first ratchet gear 204 is fixedly mounted on the first pulley 301. The central axes of the first pulley 301 and the first ratchet gear 204 are both rotatably sleeved on the output shaft of the small motor 3. The second ratchet gear 205 is connected to the driving gear 105. The two ends of the active ratchet gear 203 are respectively meshed with the first ratchet gear 204 and the second ratchet gear 205. The bearing sleeve 202 is sleeved on the outer wall of the active ratchet gear 203. The first lever 201 is fixedly mounted on the top of the bearing sleeve 202, and the top of the first lever 201 extends to the outside of the VR glasses body 7.

[0047] In this embodiment, when the first lever 201 is moved, the first lever 201 can drive the active ratchet gear 203 inside the bearing sleeve 202 to slide on the output shaft of the small motor 3. Since the inner wall of the active ratchet gear 203 is embedded in the output shaft of the small motor 3, when the active ratchet gear 203 is meshed with the second ratchet gear 205, the working small motor 3 will drive the driving gear 105 to rotate. At this time, by controlling the rotation direction of the driving gear 105, the sliding direction of the rack 104 can be controlled, and the pupil distance of the lens body 101 can be adjusted. After the pupil distance adjustment is completed, The active ratchet gear 203 is moved to engage with the first ratchet gear 204. At this time, the first pulley 301 can rotate synchronously with the output shaft of the small motor 3, so that the active wheel 501 on the central axis of the second pulley 302 can drive the driven wheel 502 to rotate through the second transmission belt 503. At this time, the two ball screws 6 can rotate synchronously, which is convenient for adjusting the focal length of the lens body 101, and can realize the separate driving of the driving gear 105 and the ball screw 6, thereby realizing the function of adjusting the pupil distance and focal length of the lens body 101 through the same small motor 3, thereby reducing the cost of use.

[0048] As an embodiment of the present invention, refer to Figure 4 The central axis of the driving gear 105 rotatably mounted on the mounting frame 1 is made of damping material, and the two racks 104 are respectively located on both sides of the driving gear 105. The two side walls of the end of the tooth of the driving gear 105 are tightly fitted with the inner wall of the gap of the rack 104, and the three teeth on the driving gear 105 are in a meshing state with the rack 104. The length of the driving gear 105 is the same as the length of the ball screw 6.

[0049] In this embodiment, during the process of adjusting the focal length of the lens body 101 by means of the ball screw 6, the stopped driving gear 105 can provide guidance for the nut 103 on the outside of the ball screw 6 and the lens body 101, thereby avoiding the use of additional guiding components and reducing production costs. In addition, since the two side walls of the end of the driving gear 105 are tightly fitted with the inner wall of the gap of the rack 104, during the guiding process, it can be ensured that the lens body 101 slides smoothly during the adjustment process. At the same time, the central axis of the driving gear 105 made of damping material can increase the friction force that needs to be overcome when the driving gear 105 rotates, thereby ensuring the stability of the driving gear 105 when it is stationary.

[0050] As an embodiment of the present invention, refer to Figure 6 , Figure 8 The speed change assembly 5 also includes a strong spring 504, a second lever 505, and a disc 506. The driving wheel 501 includes a first movable half wheel 5011 and a first fixed half wheel 5012 that are symmetrically arranged. The driven wheel 502 includes a second movable half wheel 5021 and a second fixed half wheel 5022 that are symmetrically arranged. The outer walls of the first fixed half wheel 5012 and the second fixed half wheel 5022 are respectively connected to the ball screw 6, and the central axis of the first fixed half wheel 5012 is fixedly connected to the central axis of the second pulley 302. The second movable half wheel 5021 is slidably mounted on the central axis of the second fixed half wheel 5022. The first movable half wheel 5011 is slidably mounted on the connecting axis of the second pulley 302 and the first fixed half wheel 5012. The disc 506 is fixedly mounted on the central axis of the second pulley 302, and the strong spring 504 is located between the disc 506 and the first movable half wheel 5011. The diameters of the first movable half wheel 5011, the first fixed half wheel 5012, the second movable half wheel 5021 and the second fixed half wheel 5022 are the same and the inner walls are all set to conical surfaces. The cross-section of the second transmission belt 503 is designed to be trapezoidal, and the two side surfaces of the second transmission belt 503 are in contact with the inner walls of the first movable half wheel 5011, the first fixed half wheel 5012, the second movable half wheel 5021 and the second fixed half wheel 5022. The bottom end of the second lever 505 is fixedly connected to the central axis of the second movable half wheel 5021, and the top end of the second lever 505 extends to the outside of the VR glasses body 7.

[0051] In this embodiment, when the second lever 505 is pushed outward, the second lever 505 can drive the second movable half wheel 5021 to slide on the central axis of the second fixed half wheel 5022. When the distance between the second movable half wheel 5021 and the second fixed half wheel 5022 gradually increases, the inner diameter of the driven wheel 502 will decrease. At this time, since the length of the second transmission belt 503 remains unchanged, the second transmission belt 503 that fits on the driven wheel 502 will decrease. At this time, the strong spring 504 can squeeze the second movable half wheel 5021 to slide on the central axis of the second fixed half wheel 5022. The first movable half wheel 5011 makes the first movable half wheel 5011 slide toward the first fixed half wheel 5012. At this time, the distance between the first movable half wheel 5011 and the first fixed half wheel 5012 is reduced, so the inner diameter of the driving wheel 501 becomes larger. At this time, the rotation speed of the driving wheel 501 is lower than the rotation speed of the driven wheel 502. Similarly, when the second lever 505 is pushed inward, the distance between the second movable half wheel 5021 and the second fixed half wheel 5022 gradually decreases, and the inner diameter of the driven wheel 502 becomes larger. At this time, the second transmission belt 503 fitted on the driven wheel 502 will increase, and at this time, the second transmission belt 503 can squeeze the first movable half wheel 5011 to overcome the thrust of the strong spring 504, and the first movable half wheel 5011 can slide to the outside of the first fixed half wheel 5012. At this time, the inner diameter of the driving wheel 501 becomes smaller, and the rotation speed of the driving wheel 501 is higher than the rotation speed of the driven wheel 502. By shifting the position of the second lever 505, the speed ratio of the two ball screws 6 can be changed, and the distance between the two lens bodies 101 and the user's eyes can be quickly adaptively adjusted. The image observed by the user's eyes can be quickly made clear according to the actual myopia degree of the eyes, and the two lens bodies 101 can be quickly adjusted to the position focused on the eyes respectively, thereby improving the adjustment efficiency. When other people borrow the VR glasses body 7 for vision training, they can also adjust the position of the lens body 101 according to their own degree, thereby improving the applicability of the lens body 101.

[0052] As an embodiment of the present invention, refer to Figure 4 The adjusting assembly 4 includes a cam 401, an auxiliary pulley 402, and a connecting rod 403. The central axes at both ends of the cam 401 are fixedly connected to the central axis of the driving gear 105 and the central axis of the second ratchet gear 205, respectively. The top end of the connecting rod 403 is rotatably mounted on the edge of the inner wall of the cam 401, the central axis of the auxiliary pulley 402 is rotatably mounted on the bottom end of the connecting rod 403, and the bottom end of the second transmission belt 503 is clamped on the auxiliary pulley 402. The initial position of the connecting rod 403 is located at the center of the right edge of the cam 401.

[0053] In this embodiment, when the pupil distance of the lens body 101 is adjusted by rotating the driving gear 105, the cam 401 will rotate accordingly with the rotation of the driving gear 105. When the driving gear 105 rotates clockwise to drive the pupil distance of the two lens bodies 101 to shrink, the second transmission belt 503 will be loosened. At this time, the auxiliary pulley 402 at the bottom of the cam 401 will slide upward, and the auxiliary pulley 402 will tighten the loose second transmission belt 503. Similarly, when the pupil distance of the lens body 101 increases, the second transmission belt 503 will be pulled. The auxiliary pulley 402 at the bottom of the cam 401 will slide downward, and the driving wheel 501 and the driven wheel 502 at the two ends of the ball screw 6 that are gradually moving away from each other will tighten the second transmission belt 503 that is loosened during the downward movement of the auxiliary pulley 402, so that the second transmission belt 503 can be automatically maintained in a set state during the adjustment of the pupil distance, thereby ensuring the normal operation of the speed change assembly 5, and reducing the time consumed in adjusting the second transmission belt 503 while ensuring the stability of the tightness of the second transmission belt 503.

[0054] As an embodiment of the present invention, refer to Figure 3-Figure 4 The VR glasses body 7 also includes a buffer mask 702, a light-shielding sealing ring 703, an observation tube 704, a fastening belt 705, a control button 706 and an integrated circuit board 707, a display screen 708, and a battery 709 arranged at the outer wearing part thereof, and the center of gravity of the VR glasses body 7 is located at the outer wearing part thereof, the lens body 101 is inserted in the observation tube 704, the light-shielding sealing ring 703 is designed to be annular, the outer wall of the light-shielding sealing ring 703 is fixedly connected to the inner wall of the observation tube 704, and the inner wall of the light-shielding sealing ring 703 is sleeved on the lens body 101.

[0055] In this embodiment, after the VR glasses body 7 is worn on the head by means of the fastening strap 705, the center of gravity is located at the wearing part of the VR glasses body 7, which greatly improves the wearing experience of the user and can avoid excessive load on the face of the user during wearing. In addition, the light-shielding sealing ring 703 can always fit with the inner wall of the lens body 101 during the adjustment of the lens body 101, thereby ensuring the sealing and light-shielding properties of the lens body 101, preventing external light from entering the VR glasses body 7 and affecting the viewing of images on the display screen 708, thereby further improving the user experience.

[0056] As an embodiment of the present invention, refer to Figure 2-Figure 3 , Figure 5The top of the VR glasses body 7 is provided with an active groove 701 adapted to the active trajectory of the first lever 201 and the active trajectory of the second lever 505. An air inlet pipe 7011 connected to the inside of the VR glasses body 7 is provided on the side wall at the top of the active groove 701. The air inlet pipe 7011 is designed to be S-shaped. A shading cloth 7012 is also fixedly installed at the bottom of the active groove 701, and the shading cloth 7012 is made of elastic shading material. The inner walls of the two shading cloths 7012 are respectively in contact with the first lever 201 and the second lever 505.

[0057] In this embodiment, the air intake pipe 7011 can ensure that air enters the VR glasses body 7 along the air intake pipe 7011, while its S-shaped tube body can prevent external light from directly irradiating the VR glasses body 7. The blackout cloth 7012 can further ensure the blackout property of the VR glasses body 7. The blackout cloth 7012 made of elastic material can always maintain the blackout property of the movable groove 701 during the sliding of the first lever 201 and the second lever 505, which can further improve the user experience.

[0058] As an embodiment of the present invention, refer to Figure 7-Figure 10 , the outer sides of the two ball screws 6 are both sleeved with silicone sleeves 601, and the connection between the ball screw 6 and the first fixed half wheel 5012 and the second fixed half wheel 5022 is provided with a cylinder 602, and a turbine blade 6021 is rotatably installed in the cylinder 602. The cylinder 602 is also provided with a plurality of open grooves 6022, and a through hole 604 connected to the cylinder 602 is provided at the center of the ball screw 6, and the through hole 604 is opened through the left side of the ball screw 6, and an exhaust pipe 603 is also sleeved on the left side of the ball screw 6, and the top end of the exhaust pipe 603 extends to the outside of the VR glasses body 7, and the exhaust pipe 603 is arranged in an L shape, and a plurality of spoilers 6031 are staggered on the inner wall of the top end of the exhaust pipe 603, and the plurality of spoilers 6031 are arranged obliquely upward, and the topmost spoiler 6031 covers the top end of the exhaust pipe 603 and extends to the outside of the exhaust pipe 603.

[0059] In this embodiment, during the vision training process, the two ball screws 6 continuously drive the lens body 101 to move synchronously, and the silicone sleeve 601 can reduce the noise generated by the ball screw 6 during the contact with the nut 103, while avoiding direct contact between the balls in the nut 103 and the ball screw 6, thereby reducing the wear of the ball screw 6. In the process of the turbine blades 6021 rotating with the ball screw 6, the turbine blades 6021 can drive the hot air in the VR glasses body 7 to enter the exhaust pipe 603 from the through hole 604 in the ball screw 6, and further be discharged through the exhaust pipe 603 to complete the ventilation work. In addition, due to the characteristic that the ball screw 6 needs to rotate continuously during the vision training process, the rotation of the ball screw 6 drives the turbine blades 6021 to rotate to complete the ventilation, thereby saving the driving source, and at the same time avoiding the brightness reduction and color deviation of the display screen 708 in the VR glasses body 7 caused by the heat, so that the user can clearly identify the image on the display screen 708, thereby ensuring the training effect.

[0060] Working principle: After the user wears the VR glasses body 7 on the head through the fastening belt 705, the cushioning mask 702 can be comfortable, and the corresponding functions can be controlled through the control button 706. The battery 709 can provide energy for the integrated circuit board 707, the display screen 708 and the small motor 3. The center of gravity is located in the wearing part of the VR glasses body 7, which will greatly improve the user's wearing experience and avoid excessive load on the face during the user's wearing process. In addition, the light-shielding sealing ring 703 can always fit with the inner wall of the lens body 101 during the adjustment of the lens body 101, which can ensure the sealing and light-shielding properties of the lens body 101, and prevent external light from entering the VR glasses body 7 to affect the viewing of the image on the display screen 708, which can further improve the user experience;

[0061] Before training vision, after the first lever 201 is moved, the first lever 201 can drive the active ratchet gear 203 inside the bearing sleeve 202 to slide on the output shaft of the small motor 3. Since the inner wall of the active ratchet gear 203 is embedded in the output shaft of the small motor 3, when the active ratchet gear 203 is meshed with the second ratchet gear 205, the working small motor 3 will drive the driving gear 105 to rotate. At this time, by controlling the rotation direction of the driving gear 105, the sliding direction of the rack 104 can be controlled, and the pupil distance of the lens body 101 can be adjusted. After the pupil distance adjustment is completed, at this time The active ratchet gear 203 is moved to mesh with the first ratchet gear 204. At this time, the first pulley 301 can rotate synchronously with the output shaft of the small motor 3, so that the active wheel 501 on the central axis of the second pulley 302 can drive the driven wheel 502 to rotate through the second transmission belt 503. At this time, the two ball screws 6 can rotate synchronously, which is convenient for adjusting the focal length of the lens body 101. The driving gear 105 and the ball screw 6 can be driven separately, and the pupil distance and focal length of the lens body 101 can be adjusted by the same small motor 3, which reduces the use cost;

[0062] In the process of adjusting the focal length of the lens body 101, when the second lever 505 is pushed outward, the second lever 505 can drive the second movable half wheel 5021 to slide on the central axis of the second fixed half wheel 5022. When the distance between the second movable half wheel 5021 and the second fixed half wheel 5022 gradually increases, the inner diameter of the driven wheel 502 will decrease. At this time, since the length of the second transmission belt 503 remains unchanged, the second transmission belt 503 that fits on the driven wheel 502 will decrease. At this time, the strong spring 504 can squeeze the first movable half wheel 5011, so that the first movable half wheel 5011 slides toward the first fixed half wheel 5012. At this time, the distance between the first movable half wheel 5011 and the first fixed half wheel 5012 is reduced, so the inner diameter of the driving wheel 501 becomes larger. At this time, the speed of the driving wheel 501 is lower than the speed of the driven wheel 502. Similarly, when the second lever 505 is pushed inward, the distance between the second movable half wheel 5021 and the second fixed half wheel 5022 gradually decreases, and the inner diameter of the driven wheel 502 increases. The diameter will become larger, and the second transmission belt 503 attached to the driven wheel 502 will increase. At this time, the second transmission belt 503 can squeeze the first movable half wheel 5011 to overcome the thrust of the strong spring 504, and the first movable half wheel 5011 can slide to the outside of the first fixed half wheel 5012. At this time, the inner diameter of the driving wheel 501 becomes smaller. At this time, the rotation speed of the driving wheel 501 is higher than the rotation speed of the driven wheel 502. By shifting the position of the second lever 505, the speed ratio of the two ball screws 6 can be changed, and the distance between the two lens bodies 101 and the user's eyes can be quickly adaptively adjusted. The image observed by the user's eyes can be quickly made clear according to the actual myopia degree of the eyes, and the two lens bodies 101 can be quickly adjusted to the positions that focus on the eyes respectively, which improves the adjustment efficiency. When other people borrow the VR glasses body 7 for vision training, they can also adjust the position of the lens body 101 according to their own degree, which improves the applicability of the lens body 101.

[0063] In the process of adjusting the pupil distance of the lens body 101, the cam 401 will rotate accordingly with the rotation of the driving gear 105. When the driving gear 105 rotates clockwise to drive the pupil distance of the two lens bodies 101 to shrink, the second transmission belt 503 will be relaxed. At this time, the auxiliary pulley 402 at the bottom of the cam 401 will slide upward, and the auxiliary pulley 402 will tighten the relaxed second transmission belt 503. Similarly, when the pupil distance of the lens body 101 increases, the second transmission belt 503 will be tightened. At this time, the auxiliary pulley 402 at the bottom of the cam 401 will slide downward. At this time, the driving wheel 501 and the driven wheel 502 at the ends of the two gradually moving away ball screws 6 will tighten the second transmission belt 503 that is loosened during the downward movement of the auxiliary pulley 402, so that the second transmission belt 503 can be automatically maintained in the set state during the adjustment of the pupil distance, so as to ensure the normal operation of the speed change assembly 5, and at the same time as ensuring the stability of the tightness of the second transmission belt 503, the time consumed in adjusting the second transmission belt 503 is reduced;

[0064] After the adjustment is completed, the driving wheel 501 and the driven wheel 502 are restored to the state of having the same inner diameter, and then the two lens bodies 101 are made to slide back and forth in the VR glasses body 7 by continuously changing the rotation direction of the small motor 3, so that the eyes can continuously see distant scenes and nearby scenes, which can exercise the ciliary muscles of the eyes and achieve the purpose of training vision;

[0065] During the training process, the two ball screws 6 continuously drive the lens body 101 to move synchronously, and the silicone sleeve 601 can reduce the noise generated by the ball screw 6 during the contact with the nut 103, while avoiding direct contact between the balls in the nut 103 and the ball screw 6, thereby reducing the wear of the ball screw 6. In the process of the turbine blades 6021 rotating with the ball screw 6, the turbine blades 6021 can drive the hot air in the VR glasses body 7 to enter the exhaust pipe 603 from the through hole 604 in the ball screw 6, and further be discharged through the exhaust pipe 603 to complete the ventilation work. The L-shaped exhaust pipe 603 can prevent light from directly entering the VR glasses body 7. Since the counterclockwise rotation of the ball screw 6 cannot cause the turbine blades 6021 to generate gas flow, the outermost spoiler 6031 can prevent the exhausted hot air from flowing back into the VR glasses body 7 during the counterclockwise rotation of the ball screw 6. At the same time, the spoiler 6031 can To further ensure the light-shielding property, the ball screw 6 needs to rotate continuously during the vision training process. The rotation of the ball screw 6 drives the turbine blade 6021 to rotate to complete the ventilation, saving the driving source. At the same time, it can prevent the heat from causing the brightness reduction and color deviation of the display screen 708 in the VR glasses body 7, so that the user can clearly identify the image on the display screen 708, which can ensure the training effect. The air intake pipe 7011 can ensure that the air enters the VR glasses body 7 along the air intake pipe 7011 to ensure the circulation of air, and its S-shaped tube body can prevent external light from directly irradiating the VR glasses body 7. The light-shielding property of the VR glasses body 7 can be further guaranteed by cooperating with the light-shielding cloth 7012. The light-shielding cloth 7012 made of elastic material can always maintain the light-shielding property of the active groove 701 during the sliding of the first lever 201 and the second lever 505, which can further improve the use experience.

[0066] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A VR glasses optical imaging lens, comprising a mounting frame (1) and a VR glasses body (7) for fixing the mounting frame (1), characterized in that: The mounting frame (1) is provided with two lens bodies (101) and a driving gear (105); the two lens bodies (101) are both provided with a lens (102), a nut (103), a rack (104) and a ball screw (6) rotatably mounted in the nut (103); a small motor (3) is provided in the VR glasses body (7); the output end of the small motor (3) is provided with a first pulley (301), a second pulley (302) and a first transmission belt (303); the first pulley (301) is connected to the driving gear (105); the second pulley (302) is connected to one of the ball screws (6); the small motor (3) is provided with a first belt pulley (301), a second belt pulley (302) and a first transmission belt (303); the first belt pulley (301) is connected to the driving gear (105); the second belt ... The front end of the lever (3) is provided with a clutch assembly (2) for controlling a driving gear (105) and two ball screws (6) to operate independently, and the ends of the two ball screws (6) are also provided with a speed change assembly (5) for adjusting the speed ratio of the ball screws (6), the speed change assembly (5) comprising a driving wheel (501) and a driven wheel (502), and the driving wheel (501) and the driven wheel (502) are respectively connected to one of the ball screws (6), the driving wheel (501) and the driven wheel (502) are jointly sleeved with a second transmission belt (503), and the driving gear (105) is provided with an adjustment assembly (4) for automatically adjusting the tightness of the second transmission belt (503).

2. The optical imaging lens for VR glasses according to claim 1, characterized in that: The clutch assembly (2) comprises a first lever (201), a bearing sleeve (202), an active ratchet gear (203), a first ratchet gear (204), and a second ratchet gear (205); the active ratchet gear (203) is slidably mounted on the output shaft of the small motor (3), and the inner wall of the active ratchet gear (203) is embedded in the output shaft of the small motor (3); the first ratchet gear (204) is fixedly mounted on the first pulley (301); the first pulley (301) and the first ratchet gear (204) The central axis of the first and second ratchet gears (205) are rotatably sleeved on the output shaft of the small motor (3); the second ratchet gear (205) is connected to the driving gear (105); the two ends of the active ratchet gear (203) are respectively meshed with the first ratchet gear (204) and the second ratchet gear (205); the bearing sleeve (202) is sleeved on the outer wall of the active ratchet gear (203); the first lever (201) is fixedly mounted on the top end of the bearing sleeve (202), and the top end of the first lever (201) extends outside the VR glasses body (7).

3. The optical imaging lens for VR glasses according to claim 2, characterized in that: The central axis of the driving gear (105) rotatably mounted on the mounting frame (1) is made of a damping material, and the two racks (104) are respectively located on both sides of the driving gear (105). The two side walls of the end of the tooth of the driving gear (105) are tightly fitted with the inner wall of the gap of the rack (104), and the three teeth on the driving gear (105) are in a meshing state with the rack (104). The length of the driving gear (105) is the same as the length of the ball screw (6).

4. The optical imaging lens for VR glasses according to claim 1, characterized in that: The speed change assembly (5) further comprises a strong spring (504), a second lever (505), and a disc (506); the driving wheel (501) comprises a first movable half wheel (5011) and a first fixed half wheel (5012) which are symmetrically arranged; the driven wheel (502) comprises a second movable half wheel (5021) and a second fixed half wheel (5022) which are symmetrically arranged; the outer walls of the first fixed half wheel (5012) and the second fixed half wheel (5022) are respectively connected to the ball screw (6); the central axis of the first fixed half wheel (5012) is fixedly connected to the central axis of the second pulley (302); the second movable half wheel (5021) is slidably mounted on the central axis of the second fixed half wheel (5022); the first movable half wheel (5011) is slidably mounted on the connecting axis of the second pulley (302) and the first fixed half wheel (5012); The disc (506) is fixedly mounted on the central axis of the second pulley (302); the strong spring (504) is located between the disc (506) and the first movable half wheel (5011); the first movable half wheel (5011), the first fixed half wheel (5012), the second movable half wheel (5021) and the second fixed half wheel (5022) have the same diameter and their inner walls are all set as conical surfaces; the cross-section of the second transmission belt (503) is designed to be trapezoidal, and the two side surfaces of the second transmission belt (503) are in contact with the inner walls of the first movable half wheel (5011), the first fixed half wheel (5012), the second movable half wheel (5021) and the second fixed half wheel (5022); the bottom end of the second lever (505) is fixedly connected to the central axis of the second movable half wheel (5021), and the top end of the second lever (505) extends to the outside of the VR glasses body (7).

5. The optical imaging lens for VR glasses according to claim 4, characterized in that: The adjusting assembly (4) comprises a cam (401), an auxiliary pulley (402), and a connecting rod (403); the central axes at both ends of the cam (401) are fixedly connected to the central axis of the driving gear (105) and the central axis of the second ratchet gear (205), respectively; the top end of the connecting rod (403) is rotatably mounted on the edge of the inner wall of the cam (401); the central axis of the auxiliary pulley (402) is rotatably mounted on the bottom end of the connecting rod (403); and the bottom end of the second transmission belt (503) is clamped on the auxiliary pulley (402); and the initial position of the connecting rod (403) is located at the center of the right edge of the cam (401).

6. The optical imaging lens for VR glasses according to claim 4, characterized in that: The VR glasses body (7) further comprises a cushioning mask (702), a light shielding sealing ring (703), an observation tube (704), a fastening belt (705), a control button (706) and an integrated circuit board (707), a display screen (708) and a storage battery (709) arranged at the outer wearing part thereof, and the center of gravity of the VR glasses body (7) is located at the outer wearing part thereof, the lens body (101) is inserted at the observation tube (704), the light shielding sealing ring (703) is designed to be annular, the outer wall of the light shielding sealing ring (703) is fixedly connected to the inner wall of the observation tube (704), and the inner wall of the light shielding sealing ring (703) is sleeved on the lens body (101).

7. The optical imaging lens for VR glasses according to claim 6, characterized in that: The top of the VR glasses body (7) is provided with an active groove (701) adapted to the active trajectory of the first lever (201) and the active trajectory of the second lever (505); an air intake pipe (7011) connected to the inside of the VR glasses body (7) is provided on the side wall at the top of the active groove (701); the air intake pipe (7011) is designed to be S-shaped; a shading cloth (7012) is fixedly mounted at the bottom of the active groove (701); the shading cloth (7012) is made of an elastic shading material; the inner walls of the two shading cloths (7012) are respectively in contact with the first lever (201) and the second lever (505).

8. The optical imaging lens for VR glasses according to claim 1, characterized in that: The outer sides of the two ball screws (6) are both covered with a silicone sleeve (601), and the connection between the ball screw (6) and the first fixed half wheel (5012) and the second fixed half wheel (5022) is provided with a cylinder (602), and a turbine blade (6021) is rotatably installed in the cylinder (602), and a plurality of open grooves (6022) are also provided on the cylinder (602), and a through hole (604) connected to the cylinder (602) is provided at the center of the ball screw (6), and the through hole (604) passes through The left side of the ball screw (6) is opened, and the left side of the ball screw (6) is also sleeved with an exhaust pipe (603), the top end of the exhaust pipe (603) extends to the outside of the VR glasses body (7), the exhaust pipe (603) is arranged in an L shape, and a plurality of spoilers (6031) are arranged alternately on the inner wall of the top end of the exhaust pipe (603), the plurality of spoilers (6031) are arranged obliquely upward, and the topmost spoiler (6031) covers the top end of the exhaust pipe (603) and extends to the outside of the exhaust pipe (603).

Images