Near-to-eye display device and near-to-eye display system

Abstract

The invention discloses a near-to-eye display device and a near-to-eye display system.The near-to-eye display device comprises a shell and a display screen arranged in the shell, a plurality of guide grooves are formed in the shell, the same support is installed in the guide grooves in a sliding mode, two installation rings are installed on the support in a sliding mode, and the two installation rings are arranged in the guide grooves. A plurality of mounting rings are arranged in the shell, each mounting ring is fixedly provided with an eyepiece, one side of the inner wall of the shell is provided with a focal length adjusting assembly used for adjusting the position of the support, the support is provided with an interpupillary distance adjusting assembly used for adjusting the distance between the two eyepieces, and the side, away from the display screen, in the shell is provided with a shielding plate. According to the invention, different users can adaptively adjust the distance between the two eyepieces according to the interpupillary distance between the two eyes and adaptively adjust the distance between the eyepieces and the eyes of the users according to the focal length of the eyes, so that the use experience of the users is improved, the operation is simple, the use is convenient, and the mechanical linkage is strong.

Description

Technical Field

[0001] The present invention relates to the technical field related to near-eye display devices, and in particular to a near-eye display device and a near-eye display system. Background Art

[0002] Near-eye display devices include head-mounted displays (HMDs) that can project images directly into the eyes of observers. Such near-eye display devices are currently commonly used in the fields of virtual reality (VR) or augmented reality (AR). Generally, the display screen of a near-eye display device is less than ten centimeters away from the user's eyeball. Through special optical processing, the near-eye display device can project images clearly onto the human retina, presenting a virtual large-format image in front of the user's eyes, and thus is used for virtual reality or augmented reality.

[0003] Since the pupil distance and eyes of each user are different, the existing near-eye display device is not convenient for adjusting the distance between the two eyepieces and the distance between the eyepiece and the user's eyes, resulting in different viewing experiences for different users and inconvenience in providing the best user experience for different users. In addition, most of the existing near-eye display devices use elastic pads to make the near-eye display device fit the user's face, but the disadvantage is that due to the differences in face shapes of different users, the traditional elastic pad is not convenient for adaptively fitting the user's face according to the different faces of the users, and the user's wearing comfort is not good. Summary of the invention

[0004] In order to solve the defects in the prior art, the present invention provides a near-eye display device and a near-eye display system.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: The present invention provides a near-eye display device and a near-eye display system, comprising a shell and a display screen arranged in the shell, wherein a plurality of guide grooves are provided in the shell, and a same bracket is slidably installed in a plurality of the guide grooves, two mounting rings are slidably installed on the bracket, and an eyepiece is fixedly installed on each of the mounting rings, a focal length adjustment component for adjusting the position of the bracket is provided on one side of the inner wall of the shell, a pupil distance adjustment component for adjusting the distance between two eyepieces is provided on the bracket, a shielding plate is provided on a side of the shell away from the display screen, a mounting pad matching the shell shape is detachably installed on one side of the shell, a plurality of adaptive components are provided on the mounting pad, and a strap assembly is provided on a side of the shell close to the mounting pad.

[0006] As a preferred technical solution of the present invention, the focal length adjustment component includes a mounting plate fixedly mounted on one side of the inner wall of the shell, a gear ring is fixedly mounted on the mounting plate, a rotating shaft is rotatably mounted between the mounting plate and the inner wall of the shell on the same side, and a connecting plate is fixedly mounted on one end of the rotating shaft, a gear shaft is rotatably mounted on the end of the connecting plate away from the rotating shaft, and a column gear meshing with the gear ring is fixedly mounted on the gear shaft, a rotating handle is fixedly mounted on the end of the gear shaft away from the connecting plate, a connecting rod fixedly connected to the bracket is rotatably mounted on the rotating handle, a horizontally arranged driving shaft is rotatably mounted on one side of the shell, a first driving gear is fixedly mounted on one end of the driving shaft, a first groove for matching the first driving gear is opened on one side of the shell, the top of the first driving gear extends out of the shell, a first bevel gear is fixedly mounted on the other end of the driving shaft, a first worm gear is fixedly mounted on the rotating shaft, a first worm gear arranged vertically and meshing with the first worm gear is rotatably mounted in the shell on the same side of the first worm gear, and a second bevel gear meshing with the first bevel gear is fixedly mounted on the top of the first worm gear.

[0007] As a preferred technical solution of the present invention, a limiting sleeve is fixedly installed on one side of the shell, and the connecting rod is slidably connected to the limiting sleeve.

[0008] As a preferred technical solution of the present invention, the pupil distance adjustment component includes a second worm fixedly mounted on the bracket and a sleeve rotatably mounted on the bracket, one end of the sleeve is fixedly mounted with a second driving gear, the other end of the sleeve is slidably plugged with the second worm, a transmission shaft is rotatably mounted on the bracket, and a second worm wheel meshing with the second worm is fixedly mounted on the end of the transmission shaft close to the second worm, a same bidirectional screw is arranged between the two mounting rings, sleeves are threadedly mounted on the outer surfaces of the two sections of the thread of the bidirectional screw, each of the sleeves is fixedly connected to the mounting ring on the same side, pulleys are fixedly mounted on the middle part of the bidirectional screw and the transmission shaft, a belt is sleeved between the two pulleys and connected by belt transmission, a channel for the belt to pass through is opened on the bracket, a second groove for cooperating with the second driving gear is opened on the other side of the shell, and the top of the second driving gear extends out of the shell.

[0009] As a preferred technical solution of the present invention, a plurality of clamping blocks are fixedly mounted on one end of the second worm near the sleeve, a plurality of clamping slots for cooperating with the clamping blocks are provided in the sleeve, and the clamping blocks slide in the clamping slots on the same side.

[0010] As a preferred technical solution of the present invention, limit blocks are fixedly installed on both the upper and lower sides of the mounting ring, and the inner wall of the bracket is provided with limit grooves used in conjunction with the limit blocks.

[0011] As a preferred technical solution of the present invention, the adaptive component includes an outer cylinder fixedly mounted on a mounting pad, an inner rod is slidably mounted in the outer cylinder and a protective pad is fixedly mounted on one end of the inner rod exposed from the outer cylinder, a telescopic spring is arranged in the outer cylinder, and the two ends of the telescopic spring are respectively fixedly connected to the inner wall of the outer cylinder and the end of the inner rod extending into the outer cylinder, a sweat-absorbent cloth is detachably mounted on the mounting pad, and several of the protective pads are located in a cavity formed between the sweat-absorbent cloth and the mounting pad.

[0012] As a preferred technical solution of the present invention, the strap assembly includes two straps fixedly installed on both sides of the shell, one of the straps is fixedly installed with a clamping sleeve, and the other strap is fixedly installed with a plurality of adjusting teeth, a clamping shaft is rotatably installed on the clamping sleeve and a tightening block used in conjunction with the adjusting teeth is fixedly installed on the outer surface of the clamping shaft, one end of the clamping shaft extends outside the clamping sleeve and is fixedly installed with a paddle, connecting belts are fixedly installed on the clamping sleeve and the shell, and Velcro is provided at the ends of the two connecting belts that are close to each other and adhere to each other.

[0013] As a preferred technical solution of the present invention, a guide rod is fixedly installed in each of the guide grooves, and the bracket slides on the outer surfaces of a plurality of guide rods.

[0014] As a preferred technical solution of the present invention, it also includes a near-eye display system, including a power supply system and any one of the near-eye display devices described above; wherein the power supply system is electrically connected to the near-eye display device.

[0015] The beneficial effects of the present invention are: 1. This near-eye display device and near-eye display system, by providing a focus adjustment component, a bracket and an eyepiece, toggling the first driving gear drives the driving shaft to rotate, the driving shaft rotates under the transmission action of the first bevel gear and the second bevel gear through the first worm and the first worm wheel to drive the rotating shaft to rotate, the rotating shaft rotates to drive the connecting plate to rotate, the connecting plate rotates by driving the column gear to rotate on the gear ring and then drives the gear shaft to rotate, the gear shaft rotates to drive the handle to follow the movement and drives the bracket to move back and forth in the guide groove through the handle and the connecting rod, so that the position of the bracket and the eyepiece arranged on the bracket can be adjusted, which is convenient for different users to adjust the position between the bracket and the eyepiece and the user's eyes according to their own eye perception, and the operation is simple, easy to use, and the adjustment stability is good.

[0016] 2. This near-eye display device and near-eye display system, by providing an interpupillary distance adjustment component, a bracket and an eyepiece, can adjust the distance between the two eyepieces by turning the second driving gear, so that different users can adaptively adjust the distance between the two eyepieces according to the interpupillary distance between their own eyes, thereby improving the user experience, being simple to operate, easy to use, and having strong mechanical linkage.

[0017] 3. This near-eye display device and near-eye display system are provided with a focus adjustment component and a pupil distance adjustment component. When the position of the driving bracket is adjusted by the focus adjustment component, the movement of the bracket drives the second worm to slide in the sleeve. When the second worm slides in the sleeve, it is still engaged with the sleeve through the block and the slot to ensure the stability of the transmission between the sleeve and the second worm. This ensures that after the position of the bracket is changed, the sleeve can still drive the second worm to rotate under the cooperation of the block and the slot when following the second drive gear to adjust the distance between the two eyepieces.

[0018] 4. This near-eye display device and near-eye display system are provided with adaptive components. When the user wears it, the protective pads at different positions will be squeezed to different degrees due to the different facial contours of the users. The protective pads are pressed to drive the inner rod on the same side to move and squeeze the telescopic spring on the same side. Under the action of its own elasticity, the telescopic spring enables the protective pad and the sweat-absorbing cloth to adaptively fit and support the user's face through the inner rod, so that the protective pad can fit the faces of different users and improve the wearing comfort of the users.

[0019] 5. This near-eye display device and near-eye display system, by setting a strap assembly, rotating the paddle to drive the card shaft to rotate and turn up the tightening block, then passing one of the straps through the card sleeve, and then pulling the strap to make the strap fit the user's head. After the near-eye display device remains stable, release the paddle to allow the tightening block to reset and press tightly against the adjustment teeth, and then through the mutual use of two Velcros, the connecting belt can be fixed at the top of the user's head by the Velcro, so that the near-eye display device can be stably worn on the user's head, which can prevent the near-eye display device from slipping due to the user's shaking, thereby improving the stability and safety of the near-eye display device when worn. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings: Figure 1 It is a schematic diagram of the overall structure of a near-eye display device and a near-eye display system of the present invention; Figure 2 It is a schematic diagram of the overall exploded structure of a near-eye display device and a near-eye display system of the present invention; Figure 3 It is a schematic structural diagram of a strap assembly of a near-eye display device and a near-eye display system of the present invention; Figure 4 It is a schematic structural diagram of a focus adjustment component of a near-eye display device and a near-eye display system of the present invention; Figure 5 It is a schematic diagram of a column gear structure of a near-eye display device and a near-eye display system of the present invention; Figure 6 This is a schematic diagram of the installation disk structure of a near-eye display device and a near-eye display system of the present invention. Figure 7 It is a schematic diagram of the structure of a pupil distance adjustment component of a near-eye display device and a near-eye display system of the present invention; Figure 8 It is a schematic diagram of a card block structure of a near-eye display device and a near-eye display system of the present invention; Fig. 9 It is a schematic cross-sectional structure diagram of a sweat-absorbing cloth of a near-eye display device and a near-eye display system of the present invention; Fig.10 It is a schematic diagram of the cross-sectional structure of an outer cylinder of a near-eye display device and a near-eye display system of the present invention; Fig.11 It is a schematic diagram of a near-eye display device and a clamping axis structure of a near-eye display system of the present invention; Fig.12 It is a schematic diagram of a limit block structure of a near-eye display device and a near-eye display system of the present invention; Fig.13 It is a schematic diagram of a guide rod structure of a near-eye display device and a near-eye display system of the present invention.

[0021] In the figure: 1, housing; 2, display screen; 3, guide groove; 4, bracket; 5, mounting ring; 6, eyepiece; 7, focus adjustment assembly; 701, mounting plate; 702, gear ring; 703, rotating shaft; 704, connecting plate; 705, gear shaft; 706, column gear; 707, handle; 708, connecting rod; 709, driving shaft; 710, first driving gear; 711, first bevel gear; 712, first worm gear; 713, first worm; 714, second bevel gear; 715, limiting sleeve; 8, pupil distance adjustment assembly; 801, second worm; 802, shaft sleeve; 803, second driving gear; 804, transmission shaft; 805, first Two worm gears; 806, two-way screw rod; 807, sleeve; 808, pulley; 809, belt; 810, block; 811, slot; 9, baffle; 10, mounting pad; 11, adaptive component; 1101, outer cylinder; 1102, inner rod; 1103, telescopic spring; 1104, sweat-absorbent cloth; 1105, protective pad; 12, strap assembly; 1201, strap; 1202, sleeve; 1203, adjusting teeth; 1204, clamping shaft; 1205, tightening block; 1206, pick; 1207, connecting belt; 1208, Velcro; 1209, reset spring; 13, guide rod; 14, limit block; 15, limit slot. DETAILED DESCRIPTION

[0022] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0023] Example: Figure 1-13 As shown, a near-eye display device and a near-eye display system of the present invention include a shell 1 and a display screen 2 arranged in the shell 1, a plurality of guide grooves 3 are opened in the shell 1, and the same bracket 4 is slidably installed in the plurality of guide grooves 3, two mounting rings 5 ​​are slidably installed on the bracket 4, and an eyepiece 6 is fixedly installed on each mounting ring 5, a focus adjustment component 7 for adjusting the position of the bracket 4 is arranged on one side of the inner wall of the shell 1, a pupil distance adjustment component 8 for adjusting the distance between the two eyepieces 6 is arranged on the bracket 4, a shielding plate 9 is arranged on the side of the shell 1 away from the display screen 2, a mounting pad 10 matching the outer shape of the shell 1 is detachably installed on one side of the shell 1, a plurality of adaptive components 11 are arranged on the mounting pad 10, and a strap component 12 is arranged on the side of the shell 1 close to the mounting pad 10.

[0024] The focus adjustment component 7 can adjust the position of the bracket 4 and the eyepiece 6 relative to the user's eyes according to the different users' own eye perceptions. The pupil distance adjustment component 8 is convenient for adjusting the distance between the two eyepieces 6, so that it can adapt to different users and allow the users to have a better user experience. By setting the adaptive component 11, the contact surface of the device and the user can be adaptively fitted to the user's face when the user wears it, thereby improving the user's wearing comfort. The strap component 12 is used to fix the shell 1 on the user's head for easy wearing by the user.

[0025] Among them, Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 6 and Fig.13As shown, the focus adjustment assembly 7 includes a mounting plate 701 fixedly mounted on one side of the inner wall of the shell 1, a gear ring 702 is fixedly mounted on the mounting plate 701, a rotating shaft 703 is rotatably mounted between the mounting plate 701 and the inner wall of the shell 1 on the same side, and a connecting plate 704 is fixedly mounted on one end of the rotating shaft 703, a gear shaft 705 is rotatably mounted on the end of the connecting plate 704 away from the rotating shaft 703, and a column gear 706 meshing with the gear ring 702 is fixedly mounted on the gear shaft 705, a rotating handle 707 is fixedly mounted on the end of the gear shaft 705 away from the connecting plate 704, and a connecting rod 708 fixedly connected to the bracket 4 is rotatably mounted on the rotating handle 707, and the shell 1 is fixedly mounted on the rotating handle 707. A horizontally arranged driving shaft 709 is rotatably installed on one side of the body 1, and a first driving gear 710 is fixedly installed on one end of the driving shaft 709. A first groove for cooperating with the first driving gear 710 is opened on one side of the shell 1, and the top of the first driving gear 710 extends out of the shell 1. A first bevel gear 711 is fixedly installed on the other end of the driving shaft 709, and a first worm gear 712 is fixedly installed on the rotating shaft 703. A first worm 713 arranged vertically and meshing with the first worm gear 712 is rotatably installed in the shell 1 on the same side of the first worm gear 712, and a second bevel gear 714 meshing with the first bevel gear 711 is fixedly installed on the top of the first worm gear 713.

[0026] The first driving gear 710 is turned to drive the driving shaft 709 to rotate. The driving shaft 709 rotates to drive the first worm 713 to rotate under the transmission action of the first bevel gear 711 and the second bevel gear 714. The first worm 713 rotates to drive the first worm wheel 712 and the rotating shaft 703 to rotate (the first worm 713 and the first worm wheel 712 can be self-locking, which effectively ensures the stability of the positions of the bracket 4 and the eyepiece 6 after adjustment). The rotation of the rotating shaft 703 drives the connecting plate 704 to rotate. The connecting plate 704 rotates to drive the column gear 706 to rotate on the gear ring 702, thereby driving the gear shaft 705 to rotate. The rotation of the gear shaft 705 drives The turning handle 707 follows the movement and drives the connecting rod 708 to move forward and backward through the turning handle 707. The movement of the connecting rod 708 drives the bracket 4 to follow the movement forward and backward in the guide groove 3, so that the position of the bracket 4 and the eyepiece 6 set on the bracket 4 can be adjusted, which is convenient for different users to adjust the position between the bracket 4 and the eyepiece 6 and the user's eyes according to their own eye perception. The operation is simple, easy to use, and the adjustment stability is good. At the same time, the use of mechanical transmission can effectively ensure the service life of the focus adjustment component 7, and effectively avoid the traditional use of sensors and motors to adjust the eyepiece 6. The problem of easy failure and short service life is effectively avoided.

[0027] Among them, Figure 4 and Figure 5As shown, a limiting sleeve 715 is fixedly installed on one side of the shell 1, and the connecting rod 708 is slidably connected to the limiting sleeve 715. The limiting sleeve 715 can guide and limit the movement of the connecting rod 708 and the bracket 4 to ensure the stability of the movement of the connecting rod 708 and the bracket 4.

[0028] Among them, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 6 , Figure 7 , Figure 8 and Fig.13 As shown, the pupil distance adjustment component 8 includes a second worm 801 fixedly mounted on the bracket 4 and a sleeve 802 rotatably mounted on the bracket 4, one end of the sleeve 802 is fixedly mounted with a second driving gear 803, and the other end of the sleeve 802 is slidably plugged with the second worm 801, a transmission shaft 804 is rotatably mounted on the bracket 4, and a second worm wheel 805 meshing with the second worm 801 is fixedly mounted on one end of the transmission shaft 804 close to the second worm 801, and the same bidirectional screw 806 is arranged between the two mounting rings 5. The outer surfaces of the two threaded sections of the bidirectional screw rod 806 are threadedly installed with sleeves 807, and each sleeve 807 is fixedly connected to the mounting ring 5 on the same side. Pulleys 808 are fixedly installed on the middle part of the bidirectional screw rod 806 and the transmission shaft 804. A belt 809 is sleeved between the two pulleys 808 and is connected through the belt 809. A channel for the belt 809 to pass through is provided on the bracket 4, and a second groove for cooperating with the second drive gear 803 is provided on the other side of the shell 1, and the top of the second drive gear 803 extends out of the shell 1.

[0029] The second driving gear 803 is turned to drive the shaft sleeve 802 and the second worm 801 to rotate accordingly. The second worm 801 rotates to drive the transmission shaft 804 through the second worm gear 805. The transmission shaft 804 rotates to drive the bidirectional lead screw 806 under the transmission action of the pulley 808 and the belt 809. The rotation of the bidirectional lead screw 806 drives the sleeves 807 on both sides to move closer to or away from each other. The movement of the sleeve 807 drives the mounting ring 5 on the same side and the eyepiece 6 fixed in the mounting ring 5 to follow the movement. Therefore, the distance between the two eyepieces 6 can be adjusted by turning the second driving gear 803, which is convenient for different users to adaptively adjust the distance between the two eyepieces 6 according to the pupil distance between their own eyes, thereby improving the user experience. The operation is simple, easy to use, and has strong mechanical linkage.

[0030] Among them, Figure 7 and Figure 8As shown, a plurality of blocks 810 are fixedly installed on one end of the second worm 801 close to the shaft sleeve 802, and a plurality of slots 811 for cooperating with the blocks 810 are provided in the shaft sleeve 802. The blocks 810 slide in the slots 811 on the same side. When the position of the driving bracket 4 is adjusted by the focal length adjustment component 7, the bracket 4 moves to drive the second worm 801 to slide in the shaft sleeve 802. When the second worm 801 slides in the shaft sleeve 802, it is still connected with the shaft sleeve 802 through the blocks 810 and the slots 811 to ensure the stability of the transmission between the shaft sleeve 802 and the second worm 801, so as to ensure that after the position of the bracket 4 is changed, the shaft sleeve 802 can still drive the second worm 801 to rotate under the cooperation of the blocks 810 and the slots 811 when following the second driving gear 803 to rotate, so as to adjust the distance between the two eyepieces 6.

[0031] Among them, Figure 7 and Fig.12 As shown, limit blocks 14 are fixedly installed on the upper and lower sides of the mounting ring 5, and a limit groove 15 is provided on the inner wall of the bracket 4 for use with the limit block 14. The limit groove 15 and the limit block 14 can be used in conjunction with each other to guide and limit the movement of the sleeve 807 and the mounting ring 5, thereby ensuring the stability of the mounting ring 5 when following the movement of the sleeve 807.

[0032] Among them, Figure 1 , Figure 2 , Fig. 9 and Fig.10 As shown, the adaptive component 11 includes an outer cylinder 1101 fixedly mounted on the mounting pad 10, an inner rod 1102 is slidably mounted in the outer cylinder 1101, and a protective pad 1105 is fixedly mounted on one end of the inner rod 1102 exposed from the outer cylinder 1101, a telescopic spring 1103 is arranged in the outer cylinder 1101, and the two ends of the telescopic spring 1103 are respectively fixedly connected to the inner wall of the outer cylinder 1101 and the end of the inner rod 1102 extending into the outer cylinder 1101, a sweat-absorbing cloth 1104 is detachably mounted on the mounting pad 10, and a plurality of protective pads 1105 are all located in a cavity formed between the sweat-absorbing cloth 1104 and the mounting pad 10. When the user wears it, due to the contour of the user's face, The different positions of the protective pads 1105 will be squeezed to different degrees. The protective pads 1105 are compressed to drive the inner rod 1102 on the same side to move and squeeze the telescopic spring 1103 on the same side. The telescopic spring 1103, under the action of its own elasticity, enables the protective pads 1105 and the sweat-absorbent cloth 1104 to adaptively fit and support the user's face through the inner rod 1102, so that the protective pads 1105 and the sweat-absorbent cloth 1104 can fit the faces of different users and improve the wearing comfort of the users. The detachable connection between the sweat-absorbent cloth 1104 and the mounting pad 10 makes it easy to disassemble, replace and clean the sweat-absorbent cloth 1104 in time to ensure the cleanliness of the sweat-absorbent cloth 1104.

[0033] Among them, Figure 1 , Figure 2 , Figure 3 and Fig.11 As shown, the strap assembly 12 includes two straps 1201 respectively fixedly mounted on both sides of the shell 1, wherein a clamping sleeve 1202 is fixedly mounted on one of the straps 1201, and a plurality of adjusting teeth 1203 are fixedly mounted on the other strap 1201, a clamping shaft 1204 is rotatably mounted on the clamping sleeve 1202, and a tightening block 1205 used in conjunction with the adjusting teeth 1203 is fixedly mounted on the outer surface of the clamping shaft 1204, one end of the clamping shaft 1204 extends to the outside of the clamping sleeve 1202 and is fixedly mounted with a paddle 1206, connecting belts 1207 are fixedly mounted on both the clamping sleeve 1202 and the shell 1, and Velcro 1208 that are bonded to each other are provided at the ends of the two connecting belts 1207 that are close to each other.

[0034] Rotating the paddle 1206 drives the card shaft 1204 to rotate and turns the tightening block 1205 to compress the reset spring 1209, and then one of the straps 1201 is passed through the card sleeve 1202, and then the strap 1201 is pulled to make the strap 1201 fit the user's head. After the near-eye display device remains stable, release the paddle 1206 to allow the tightening block 1205 to reset and press tightly against the adjustment tooth 1203 under the action of the reset spring 1209, and then the two Velcros 1208 are used in coordination with each other to allow the connecting belt 1207 to be fixed at the top of the user's head through the Velcro 1208, so that the near-eye display device can be stably worn on the user's head, which can avoid the near-eye display device from slipping due to the user's shaking, thereby improving the stability and safety of the near-eye display device when worn. Among them, Figure 6 and Fig.13 As shown, a guide rod 13 is fixedly installed in each guide groove 3, and the bracket 4 slides on the outer surfaces of several guide rods 13. The guide rod 13 can guide and limit the sliding of the bracket 4 in the guide groove 3 to ensure the stability of the bracket 4 when moving in the guide groove 3.

[0035] Among them, it also includes a near-eye display system, including a power supply system and any of the above-mentioned near-eye display devices; wherein the power supply system is electrically connected to the near-eye display device.

[0036] When working, first, the near-eye display device is fixed to the user's head through the straps 1201 on both sides of the near-eye display device, the paddle 1206 is rotated to drive the card shaft 1204 to rotate and turn up the tightening block 1205 and compress the reset spring 1209, and then one of the straps 1201 is passed through the card sleeve 1202, and then the strap 1201 is pulled to make the strap 1201 fit the user's head. After the near-eye display device remains stable, the paddle 1206 is released to make the tightening block 1205 reset and press against the adjustment tooth 1203 under the action of the reset spring 1209, and then the connection is made through the cooperation of the two Velcro strips 1208. The strap 1207 can be fixed on the top of the user's head by a Velcro 1208, so that the near-eye display device can be stably worn on the user's head. When the user wears it, the protective pads 1105 at different positions will be squeezed to different degrees due to the different facial contours of the users. The protective pads 1105 are pressed to drive the inner rod 1102 on the same side to move and squeeze the telescopic spring 1103 on the same side. The telescopic spring 1103, under the action of its own elasticity, enables the protective pad 1105 and the sweat-absorbing cloth 1104 to adaptively fit and support the user's face through the inner rod 1102, so that it can fit the faces of different users and improve the wearing comfort of the users. Then, the distance between the two eyepieces 6 and the user's eyes and the distance between the two eyepieces 6 are adaptively adjusted according to the focal length of the user's eyes and the pupil distance between the two eyes, and the first driving gear 710 is turned to drive the driving shaft 709 to rotate. The driving shaft 709 rotates to drive the first worm 713 to rotate under the transmission action of the first bevel gear 711 and the second bevel gear 714. The first worm 713 rotates to drive the first worm wheel 712 and the rotating shaft 703. The rotating shaft 703 rotates to drive the connecting plate 704 to rotate. The connecting plate 704 rotates to drive the column gear 706 to rotate on the gear ring 702, and then drives the gear shaft 705 to rotate. The gear shaft 705 rotates to drive the handle 707 to follow the movement and drives the connecting rod 708 to move forward and backward through the handle 707. The movement of the connecting rod 708 drives the bracket 4 to follow the movement in the guide groove 3. , so that the positions of the bracket 4 and the eyepiece 6 arranged on the bracket 4 can be adjusted, so that different users can adjust the positions between the bracket 4 and the eyepiece 6 and the user's eyes according to their own eye perception. When the position of the bracket 4 is adjusted by the focus adjustment component 7, the bracket 4 moves to drive the second worm 801 to slide in the shaft sleeve 802. When the second worm 801 slides in the shaft sleeve 802, it is still engaged with the shaft sleeve 802 through the clamping block 810 and the clamping groove 811 to ensure the stability of the transmission between the shaft sleeve 802 and the second worm 801. It can be ensured that after the position of the bracket 4 is changed, the shaft sleeve 802 can still drive the second worm 801 to rotate under the cooperation of the clamping block 810 and the clamping groove 811 when following the second driving gear 803 to rotate, so as to adjust the distance between the two eyepieces 6; The second driving gear 803 is then turned to drive the shaft sleeve 802 and the second worm 801 to rotate accordingly. The rotation of the second worm 801 drives the transmission shaft 804 to rotate through the second worm gear 805. The rotation of the transmission shaft 804 drives the bidirectional screw 806 to rotate under the transmission action of the pulley 808 and the belt 809. The rotation of the bidirectional screw 806 drives the sleeves 807 on both sides to move closer to or away from each other. The movement of the sleeve 807 drives the mounting ring 5 on the same side and the eyepiece 6 fixed in the mounting ring 5 to follow the movement, so that the distance between the two eyepieces 6 can be adjusted by turning the second driving gear 803, which is convenient for different users to adaptively adjust the distance between the two eyepieces 6 according to the pupil distance between their own eyes, thereby improving the user experience, being simple to operate, convenient to use, having strong mechanical linkage, and good adjustment stability. At the same time, the use of mechanical transmission can effectively ensure the service life of the focus adjustment component 7, and effectively avoid the problem of easy failure and short service life when the traditional method of using sensors and motors to adjust the eyepiece 6 is effectively avoided.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A near-eye display device, comprising a housing (1) and a display screen (2) arranged in the housing (1), characterized in that: The shell (1) is provided with a plurality of guide grooves (3), and a same bracket (4) is slidably mounted in the plurality of guide grooves (3); two mounting rings (5) are slidably mounted on the bracket (4); an eyepiece (6) is fixedly mounted on each mounting ring (5); a focus adjustment component (7) for adjusting the position of the bracket (4) is arranged on one side of the inner wall of the shell (1); a pupil distance adjustment component (8) for adjusting the distance between the two eyepieces (6) is arranged on the bracket (4); a shielding plate (9) is arranged on the side of the shell (1) away from the display screen (2); a mounting pad (10) matching the outer shape of the shell (1) is detachably mounted on one side of the shell (1); a plurality of adaptive components (11) are arranged on the mounting pad (10); and a strap component (12) is arranged on the side of the shell (1) close to the mounting pad (10).

2. A near-eye display device according to claim 1, characterized in that: The focal length adjustment assembly (7) comprises a mounting plate (701) fixedly mounted on one side of the inner wall of the housing (1), a gear ring (702) fixedly mounted on the mounting plate (701), a rotating shaft (703) rotatably mounted between the mounting plate (701) and the inner wall of the housing (1) on the same side, a connecting plate (704) fixedly mounted on one end of the rotating shaft (703), a gear shaft (705) rotatably mounted on the end of the connecting plate (704) away from the rotating shaft (703), a column gear (706) meshing with the gear ring (702) fixedly mounted on the gear shaft (705), a rotating handle (707) fixedly mounted on the end of the gear shaft (705) away from the connecting plate (704), and a connecting rod (708) fixedly mounted on the rotating handle (707) and fixedly connected to the bracket (4). A horizontally arranged drive shaft (709) is rotatably mounted on one side of the housing (1), a first drive gear (710) is fixedly mounted on one end of the drive shaft (709), a first groove for cooperating with the first drive gear (710) is opened on one side of the housing (1), the top of the first drive gear (710) protrudes out of the housing (1), a first bevel gear (711) is fixedly mounted on the other end of the drive shaft (709), a first worm gear (712) is fixedly mounted on the rotating shaft (703), a first worm (713) arranged vertically and meshing with the first worm gear (712) is rotatably mounted in the housing (1) on the same side of the first worm gear (712), and a second bevel gear (714) meshing with the first bevel gear (711) is fixedly mounted on the top of the first worm gear (713).

3. A near-eye display device according to claim 2, characterized in that: A limiting sleeve (715) is fixedly mounted on one side of the housing (1), and the connecting rod (708) is slidably connected to the limiting sleeve (715).

4. The near-eye display device according to claim 1, characterized in that: The pupil distance adjustment component (8) comprises a second worm (801) fixedly mounted on a bracket (4) and a shaft sleeve (802) rotatably mounted on the bracket (4); a second driving gear (803) is fixedly mounted on one end of the shaft sleeve (802); the other end of the shaft sleeve (802) is slidably plugged with the second worm (801); a transmission shaft (804) is rotatably mounted on the bracket (4); a second worm wheel (805) meshing with the second worm (801) is fixedly mounted on one end of the transmission shaft (804) close to the second worm (801); a same bidirectional lead screw (806) is provided between the two mounting rings (5); The outer surfaces of the two threads of the bidirectional screw rod (806) are both threadedly mounted with sleeves (807), and each sleeve (807) is fixedly connected to the mounting ring (5) on the same side. A pulley (808) is fixedly mounted on the middle part of the bidirectional screw rod (806) and the transmission shaft (804), and a belt (809) is sleeved between the two pulleys (808) and the two pulleys are connected by the belt (809). The bracket (4) is provided with a channel for the belt (809) to pass through. The other side of the housing (1) is provided with a second groove for matching with the second drive gear (803), and the top of the second drive gear (803) protrudes out of the housing (1).

5. The near-eye display device according to claim 4, characterized in that: A plurality of clamping blocks (810) are fixedly mounted on one end of the second worm (801) close to the shaft sleeve (802), and a plurality of clamping grooves (811) for cooperating with the clamping blocks (810) are provided in the shaft sleeve (802), and the clamping blocks (810) slide in the clamping grooves (811) on the same side.

6. The near-eye display device according to claim 5, characterized in that: Limit blocks (14) are fixedly mounted on both the upper and lower sides of the mounting ring (5), and a limit groove (15) for cooperating with the limit block (14) is formed on the inner wall of the bracket (4).

7. The near-eye display device according to claim 1, characterized in that: The adaptive component (11) comprises an outer cylinder (1101) fixedly mounted on a mounting pad (10), an inner rod (1102) being slidably mounted in the outer cylinder (1101), and a protective pad (1105) being fixedly mounted on one end of the inner rod (1102) protruding from the outer cylinder (1101), a telescopic spring (1103) being arranged in the outer cylinder (1101), two ends of the telescopic spring (1103) being respectively fixedly connected to the inner wall of the outer cylinder (1101) and one end of the inner rod (1102) protruding into the outer cylinder (1101), a sweat-absorbing cloth (1104) being detachably mounted on the mounting pad (10), and a plurality of the protective pads (1105) being located in a cavity formed between the sweat-absorbing cloth (1104) and the mounting pad (10).

8. The near-eye display device according to claim 1, characterized in that: The strap assembly (12) comprises two straps (1201) respectively fixedly mounted on two sides of the housing (1), wherein a clamping sleeve (1202) is fixedly mounted on one of the straps (1201), and a plurality of adjusting teeth (1203) are fixedly mounted on the other strap (1201), a clamping shaft (1204) is rotatably mounted on the clamping sleeve (1202), and a resist for use with the adjusting teeth (1203) is fixedly mounted on the outer surface of the clamping shaft (1204). A tightening block (1205), one end of the clamping shaft (1204) extends outside the clamping sleeve (1202) and is fixedly mounted with a paddle (1206), a connecting belt (1207) is fixedly mounted on the clamping sleeve (1202) and the housing (1), and two ends of the connecting belts (1207) that are close to each other are provided with Velcro (1208) that are bonded to each other, and a return spring (1209) is fixedly mounted between the tightening block (1205) and the clamping sleeve (1202).

9. The near-eye display device according to claim 1, characterized in that: A guide rod (13) is fixedly installed in each guide groove (3), and the bracket (4) slides on the outer surfaces of a plurality of guide rods (13).

10. A near-eye display system, characterized in that: It comprises a power supply system and a near-eye display device as claimed in any one of claims 1 to 9; wherein the power supply system is electrically connected to the near-eye display device.

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