Head-mounted virtual display device for virtual venue

Abstract

The invention relates to the technical field of virtual reality, and discloses a head-mounted virtual display device for a virtual venue, which comprises two mounting cylinders, a display cylinder is mounted in each of the two mounting cylinders, a display is embedded in an opening in one end of each display cylinder, a lens cylinder is embedded in an opening in the other end of each display cylinder, and a lens is embedded in the lens cylinder. A lens is fixed in each lens cylinder; the outer circumferential surface of each lens barrel is sleeved with a moving frame for driving the lens barrel to axially move relative to the display barrel; the ends, close to each other, of the two movable frames are each fixedly provided with a reset block, a pair of reset driving blocks are arranged between the two reset blocks, and each reset driving block is provided with an inclined face used for being matched with the corresponding reset block. The two mounting cylinders get close to each other and drive the reset blocks to move along the inclined planes to move the lenses to get close to the display; the distance between the two displayers and the distance between the displayers and the lenses are reset at the same time, and the workload in the reset process is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of virtual reality, and specifically to a head-mounted virtual display device for virtual venues. Background Art

[0002] At present, head-mounted virtual reality devices on the market are generally equipped with functions for adjusting the interpupillary distance and focal length to meet the needs of different users. In a private environment, users usually only need to make one adjustment and can use it for a long time. However, in public places such as virtual venues, the device will be used by different users in turn. Therefore, each time the user is changed, the interpupillary distance and focal length of the device need to be adjusted individually.

[0003] In public places such as virtual venues, users are usually responsible for adjusting the interpupillary distance and focal length of the head-mounted virtual reality device to a state suitable for themselves, while restoring the device to the initial settings is usually performed by the venue staff. Since the adjustment of the interpupillary distance and focal length needs to be manually adjusted, in order to meet the simultaneous use of multiple people and improve the turnover efficiency of the head-mounted virtual reality device, the venue staff needs to manually reset the interpupillary distance and focal length of multiple head-mounted virtual reality devices in a short time, with a large workload. And since the adjustment of the interpupillary distance and focal length is mainly achieved by means of screw adjustment, the reset of the interpupillary distance and focal length needs to be achieved by reverse screw adjustment, with a lot of manual operations. This will not only further increase the workload, but also may cause the interpupillary distance and focal length of individual head-mounted virtual reality devices not to be fully reset, thus bringing difficulties in alignment and adjustment to subsequent users. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the present invention provides a head-mounted virtual display device for virtual venues, which can effectively solve the problems raised in the background art.

[0005] To achieve the above object, the present invention provides the following technical solution: A head-mounted virtual display device for virtual venues, including two mounting cylinders and an adjustment component for adjusting the distance between the two mounting cylinders. A display cylinder is respectively installed in each of the two mounting cylinders. A display is embedded at the opening of one end of each display cylinder, and a lens cylinder is embedded at the opening of the other end of each display cylinder. A lens is fixed in each lens cylinder; A moving frame for driving the lens cylinder to axially move relative to the display cylinder is sleeved on the outer circumferential surface of each lens cylinder; A reset block is respectively fixed at one end of the two moving frames close to each other, and a pair of reset driving blocks are arranged between the two reset blocks. Each reset driving block has an inclined surface for cooperating with the corresponding reset block; The two mounting cylinders approach each other and drive the reset blocks to move along the inclined surface, moving the lens closer to the display.

[0006] Preferably, the adjusting assembly includes a face gear serving as a power input unit; an energy storage and release assembly is arranged between the face gear and the reset driving block, and the energy storage and release assembly includes a coil spring and a brake disc surrounding the coil spring; the coil spring has a state of increasing elastic potential energy, a state of unchanged elastic potential energy, and a state of decreasing elastic potential energy when the face gear rotates to drive the two mounting cylinders to move away from each other, and the elastic potential energy of the coil spring increases when it is driven by the face gear; the brake disc has a circle of brake grooves.

[0007] Preferably, an energy release control assembly is arranged between the energy storage and release assembly and the reset driving block; the energy release control assembly includes a brake rod, and the coil spring is switched between the state of unchanged elastic potential energy and the state of increasing elastic potential energy by moving the brake rod axially out of and into the brake groove along the brake disc, and the coil spring is switched between the state of unchanged elastic potential energy and the state of decreasing elastic potential energy by moving the brake rod radially out of and into the brake groove along the brake disc.

[0008] Preferably, the energy release control assembly further includes a pressure frame, the brake rod is fixedly connected to the pressure frame through a second spring column, two push blocks are fixed on the pressure frame, the cross-sectional shapes of the two push blocks are both right trapezoids, and the inclined surfaces of the two push blocks are respectively in contact with one end of the two reset driving blocks close to each other.

[0009] Preferably, the movement of the pressure frame drives the two push blocks to push open the two reset driving blocks, moves the inclined surfaces on the two reset driving blocks away from each other to a position where they can cooperate with the corresponding reset blocks, and drives the brake rod to move radially out of the brake groove along the brake disc, so as to switch the coil spring from the state of unchanged elastic potential energy to the state of decreasing elastic potential energy.

[0010] Preferably, a spring that stretches as the distance between the two reset driving blocks increases is fixedly connected between the two reset driving blocks.

[0011] Preferably, the elastic potential energy stored during the stretching process of the spring is used to move the reset driving block back to its original position and move the brake rod radially into the brake groove along the brake disc.

[0012] Preferably, the pressure frame is configured to be manually controllable to move.

[0013] Compared with the prior art, the present invention provides a head-mounted virtual display device for virtual venues, having the following beneficial effects:

[0014] By setting a coil spring and enabling the coil spring to increase its elastic potential energy during the process of increasing the distance between the two displays, the released elastic potential energy of the coil spring acts to reset the distance between the two displays; by setting a reset block, a reset driving block, and an energy release control component, the reset block is connected to the lens, and an inclined surface matching the reset block is provided on the reset driving block. The energy release control component is used to control the release of the elastic potential energy of the coil spring and control the contact between the inclined surface on the reset driving block and the reset block, so that while the distance between the two displays is reduced, the distance between the lens and the display will also be reduced as the reset block moves on the inclined surface of the reset driving block, realizing the simultaneous reset of the distance between the two displays and the distance between the display and the lens. At the same time, the manual operation during the reset process is only to manually press the energy release control component, reducing the manual operation during the reset process, and thus reducing the workload during the reset process. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0016] Figure 2 is an expanded view of a partial structure of the present invention;

[0017] Figure 3 is a schematic diagram of the cooperation between the adjusting component and the mounting cylinder;

[0018] Figure 4 is a schematic diagram of the cooperation between the adjusting component, the energy storage and release component, and the energy release control component;

[0019] Figure 5 is Figure 4 an enlarged view of the structure at A in

[0020] Figure 6 is a schematic diagram of the structure of the energy release control component and the reset driving block;

[0021] Figure 7 is a schematic diagram of the cooperation between the enclosure panel and the moving frame.

[0022] Among them: 1. End plate 1; 2. Shell; 21. Mounting cavity 1; 22. Mounting cavity 2; 23. Mounting slot 1; 24. Mounting slot 2; 25. Mounting slot 3; 3. End plate 2; 4. Enclosure; 41. Through slot 1; 5. Mounting tube; 6. Display tube; 7. Lens tube; 8. Moving frame; 81. Moving column; 82. Slider; 9. Adjustment assembly; 91. Adjustment shaft; 92. Face gear; 93. Moving rod; 931. Rod 1; 932. Rod 2; 94. Adjustment Knob; 10, energy storage and release component; 101, coil spring; 102, coil spring box; 103, positioning column; 104, disc ratchet one; 105, disc ratchet two; 1051, transmission column; 106, gear shaft; 107, brake disc; 11, reset drive block; 111, spring; 12, reset block; 13, energy release control component; 131, pressure frame; 132, push block; 133, spring column two; 134, brake lever; 14, spring column one; 15, cover plate. DETAILED DESCRIPTION

[0023] 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.

[0024] See also Figures 1 to 7 A head-mounted virtual display device for a virtual stadium includes a cover plate 15, a main mounting shell and a secondary mounting shell, the main mounting shell and the secondary mounting shell are arranged opposite to each other and together form a frame for mounting a pair of displays and a pair of lenses, wherein:

[0025] The main installation shell includes an end plate 1 and a shell 2. The shell 2 is formed at one end of the end plate 1. The shell 2 has two installation cavities 1 21 and one installation cavity 22. The two installation cavities 1 21 are parallel to each other. The installation cavity 22 is far away from the end plate 1, and the two installation cavities 1 21 and the one installation cavity 22 together form a "艹"-shaped cavity; a mounting groove 1 23 is opened at one end of the shell 2 near the end plate 1; the mounting groove 1 23 is a semi-cylindrical groove, and the two ends are respectively connected to the two installation cavities 1 21, and the middle part has a semi-annular protrusion;

[0026] The auxiliary mounting shell includes an end plate 2 3 and two enclosure plates 4. The two enclosure plates 4 are formed on one end of the end plate 2 3 facing the housing 2, and the two enclosure plates 4 are used to cover the openings at both ends of the mounting cavity 22 respectively.

[0027] The cover plate 15 is installed on the housing 2 , and the cover plate 15 is used to cover the installation groove 1 23 .

[0028] One mounting cylinder 5 is respectively arranged in each of the two mounting cavities 21. The two mounting cylinders 5 are respectively slidably connected to one end of the first end plate 1 away from the housing 2. One display cylinder 6 is respectively installed in each of the two mounting cylinders 5. A display is embedded at one open end of each display cylinder 6, and a lens cylinder 7 is embedded at the other open end of each display cylinder 6. A lens is fixed in each lens cylinder 7. A moving frame 8 for driving the lens cylinder 7 to axially move relative to the display cylinder 6 is sleeved on the outer circumferential surface of each lens cylinder 7. The two moving frames 8 are both arranged in the second mounting cavity 22, and one end of each of the two moving frames 8 away from each other exposes out of the second mounting cavity 22. A moving column 81 is detachably installed at one end of each of the two moving frames 8 away from each other. The two moving columns 81 respectively penetrate through the two enclosing plates 4 through the first through grooves 41 on the enclosing plate 4. A slider 82 is respectively slidably sleeved on the outer circumferential surfaces of the two moving columns 81. The two sliders 82 are respectively slidably installed at one end of the two enclosing plates 4 away from each other. By sliding the slider 82 on the enclosing plate 4, the moving frame 8 is driven to axially move in the second mounting cavity 22 along the display cylinder 6, so that the lens cylinder 7 and the lens move away from and close to the display.

[0029] As Figure 7 shown, the first through groove 41 is rectangular or long oval, and the length direction of the first through groove 41 is parallel to the axial direction of the display cylinder 6.

[0030] An adjusting assembly 9 is installed between the frame body and the cover plate 15. The adjusting assembly 9 is used to adjust the distance between the two mounting cylinders 5 so as to realize the adjustment of the distance between the two displays and the distance between the two lenses. Specifically:

[0031] As Figure 3 shown, the adjusting assembly 9 includes an adjusting shaft 91, a face gear 92, a moving rod 93 and an adjusting knob 94. A face gear 92 is fixedly sleeved on the outer circumferential surface of the adjusting shaft 91. The adjusting shaft 91 and the face gear 92 together form a "cross" structure and are rotatably installed in the first installation groove 23 between the two first mounting cavities 21. One moving rod 93 is respectively threadedly connected to both ends of the adjusting shaft 91. The two moving rods 93 respectively move in the two first mounting cavities 21 and the two moving rods 93 respectively embed into the two mounting cylinders 5. The face gear 92 is drivingly connected with an adjusting knob 94. The adjusting knob 94 penetrates through and is rotatably connected to the cover plate 15. By rotating the adjusting knob 94, the face gear 92 is driven to rotate, so that the adjusting shaft 91 rotates, driving the two moving rods 93 to move away from or close to each other, driving the two mounting cylinders 5 to move in the two first mounting cavities 21 respectively, and realizing the adjustment of the distance between the two mounting cylinders 5.

[0032] It should be noted that the thread directions at both ends of the adjusting shaft 91 are opposite.

[0033] It should be noted that in a specific embodiment, the moving rod 93 includes a rod one 931 and a rod two 932. The rod one 931 has a T-shaped column structure. The smaller-diameter end of the rod one 931 is the small end, and a thread that mates with the thread on the adjusting shaft 91 is provided on the outer circumferential surface. The larger-diameter end of the rod one 931 is the large end, and when the two mounting cylinders 5 are at the minimum distance, it abuts against the adjusting shaft 91. The rod two 932 is an internal hexagon socket headless stud, and it radially penetrates and is threadedly connected to the large end of the rod one 931 along the large end of the rod one 931. Both ends of the rod two 932 protrude from the rod one 931. One end of the rod two 932 is embedded in the mounting cylinder 5, and the other end of the rod two 932 is located in the second through groove on the cover plate 15. By rotating the rod two 932, the rod two 932 can be connected to or disengaged from the mounting cylinder 5, facilitating the connection and disassembly between the adjusting assembly 9 and the mounting cylinder 5.

[0034] Before the above technical solution is used, the two mounting cylinders 5 are in the state of the minimum distance position, and the lens and the display are in the state of the minimum distance position.

[0035] When the above technical solution is in use, the adjusting knob 94 is rotated according to the pupil distance, so that the face gear 92 rotates. The face gear 92 inputs power to the adjusting shaft 91. The adjusting shaft 91 rotates and drives the two moving rods 93 to move away from each other, so that the two mounting cylinders 5 move away from each other. The two display cylinders 6 are respectively moved in the two first mounting cavities 21 and move away from each other. The two moving frames 8 are both moved in the second mounting cavity 22 and move away from each other, so that the two displays move away from each other and the two lenses move away from each other until the distance between the two lenses is adapted to the pupil distance. Then, according to the vision conditions of the two pupils, the corresponding slider 82 is operated to make the moving column 81 move along the length direction of the first through groove 41, driving the moving frame 8 to move axially along the display cylinder 6 in the second mounting cavity 22, pushing the lens cylinder 7 and the lens to move away from the display until the distance between the display and the lens is adapted to the vision.

[0036] It should be noted that during the process of the two moving frames 8 moving away from and approaching each other, the moving column 81 will axially move relative to the slider 82.

[0037] As a further description of the above technical solution, as Figure 2 shown, a second mounting groove 24 and a third mounting groove 25 are also opened at one end of the housing 2, and the distances from the first mounting groove 23, the second mounting groove 24, and the third mounting groove 25 to the first end plate 1 increase in sequence. The third mounting groove 25 communicates with the second mounting cavities 22 on both sides of it.

[0038] The cover plate 15 is also used to cover the second mounting groove 24 and the third mounting groove 25.

[0039] As Figure 2As shown, an energy storage and release component 10 is installed in the second installation groove 24. The energy storage and release component 10 has a state of increasing elastic potential energy, a state of constant elastic potential energy, and a state of decreasing elastic potential energy. When the adjustment component 9 acts and drives the two installation cylinders 5 to move away from each other, the energy storage and release component 10 acts with the adjustment component 9 and is in a state of increasing elastic potential energy. When the adjustment component 9 acts and drives the two installation cylinders 5 to move closer to each other, the energy storage and release component 10 is in a state of constant elastic potential energy. When the energy storage and release component 10 is in a state of decreasing elastic potential energy, the elastic potential energy released by the energy storage and release component 10 is used to drive the adjustment component 9 to act to reduce the distance between the two installation cylinders 5.

[0040] As Figure 2 shown, a reset driving component is slidably installed in the third installation groove 25. The reset driving component includes a pair of reset driving blocks 11 and a spring 111 fixedly connected between the two reset driving blocks 11. A reset block 12 is fixedly installed at one end of each of the two moving frames 8 close to each other. The reset driving blocks 11 are located between the two reset blocks 12, and the end faces of the two reset driving blocks 11 facing the two reset blocks 12 are respectively provided with inclined surfaces, and the two inclined surfaces are distributed in a "V" shape pointing to the adjustment component 9.

[0041] The reset driving component has a first state and a second state. In the first state, the two reset driving blocks 11 are in the position with the minimum distance and the spring 111 is in a static state. At this time, the two reset driving blocks 11 are both in a state of being spaced apart from the reset block 12. In the second state, the two reset driving blocks 11 are in the position with the maximum distance and the spring 111 is in a stretched state. At this time, the inclined surfaces on the two reset driving blocks 11 can be respectively used to cooperate with the corresponding reset block 12, so that the reset block 12 can be driven to move along the inclined surface on the reset block 12 by the mutual approach of the two installation cylinders 5, moving the lens closer to the display, thereby realizing the synchronous reset of the distance between the two displays and the distances between the lens and the displays.

[0042] As Figure 2 shown, an energy release control component 13 is provided between the energy storage and release component 10 and the two reset driving blocks 11. The energy release control component 13 is used to control the energy storage and release component 10 to switch between the state of constant elastic potential energy and the state of increasing elastic potential energy, and between the state of constant elastic potential energy and the state of decreasing elastic potential energy, and is also used to control the reset driving component to switch between the first state and the second state. When the energy storage and release component 10 switches from the state of constant elastic potential energy to the state of decreasing elastic potential energy, the reset driving component switches from the first state to the second state. When the energy storage and release component 10 switches from the state of decreasing elastic potential energy to the state of constant elastic potential energy, the reset driving component switches from the second state to the first state.

[0043] As Figure 4 and Figure 5As shown, the energy storage and release component 10 includes a spring box 102, a disc-shaped ratchet one 104, a disc-shaped ratchet two 105, a brake disc 107, and a gear shaft 106; the spring box 102, the disc-shaped ratchet one 104, the disc-shaped ratchet two 105, and the brake disc 107 are all rotatably installed in the second installation groove 24; the gear shaft 106 is embedded in the housing 2 between the first installation groove 23 and the second installation groove 24 and is rotatably connected to the housing 2;

[0044] One end of the spring box 102 is open, the other end of the spring box 102 is fixedly connected to the disc-shaped ratchet one 104, the end of the disc-shaped ratchet one 104 away from the spring box 102 is drivingly connected to the disc-shaped ratchet two 105, a prismatic transmission column 1051 is fixed at the end of the disc-shaped ratchet two 105 away from the disc-shaped ratchet one 104, the shaft part of the gear shaft 106 is drivingly sleeved on the surface of the transmission column 1051, and the tooth part of the gear shaft 106 is drivingly connected to the face gear 92; when the face gear 92 rotates and drives the two installation cylinders 5 to move away from each other, the gear shaft 106 rotates with the face gear 92 and drives the disc-shaped ratchet two 105 to rotate through the transmission column 1051, and the disc-shaped ratchet two 105 drives the disc-shaped ratchet one 104 to rotate, thereby driving the spring box 102 to rotate;

[0045] A spring 101 and a positioning column 103 are arranged in the spring box 102, the spring 101 is fixed between the spring box 102 and the positioning column 103, the positioning column 103 protrudes from the spring box 102, and the positioning column 103 outside the spring box 102 is prismatic and is embedded in the housing 2 between the second installation groove 24 and the third installation groove 25; when the spring box 102 rotates with the rotation of the face gear 92, the spring 101 elastically contracts to increase the elastic potential energy.

[0046] The spring 101 drives the face gear 92 to rotate by releasing the elastic potential energy and reduces the distance between the two installation cylinders 5 to the minimum value, that is, resets the distance between the two installation cylinders 5.

[0047] One spring post one 14 is respectively embedded on the housing 2 on both sides of the gear shaft 106, and the movable ends of the two spring posts one 14 both abut against the disc-shaped ratchet two 105. The elastic deformation of the spring post one 14 enables the disc-shaped ratchet two 105 to axially move relative to the disc-shaped ratchet one 104 and disengage from the disc-shaped ratchet one 104. A brake disc 107 is fixedly sleeved on the outer circumferential surface of the spring box 102, and a circle of brake grooves is provided at one end of the brake disc 107.

[0048] As shown in Figure 4 、 Figure 5 and Figure 6 shown, the energy release control component 13 includes a pressure frame 131, one end of the pressure frame 131 penetrates through the cover plate 15 and extends into the third installation groove 25, and two push blocks 132 with a right trapezoid cross-sectional shape are fixed, and the inclined surfaces on the two push blocks 132 are respectively in contact with one end of the two reset driving blocks 11 close to each other.

[0049] The pressing frame 131 can be manually controlled to move towards the third mounting groove 25. When the pressing frame 131 moves into the third mounting groove 25, the two pushing blocks 132 move and push the two reset driving blocks 11 away from each other, stretching the spring 111; when the spring 111 resets, it drives the two reset driving blocks 11 to move closer to each other and drives the pressing frame 131 to move out of the third mounting groove 25.

[0050] The energy storage and control assembly 13 further includes a brake rod 134. One end of the brake rod 134 cooperates with the brake groove on the brake disc 107, and the other end of the brake rod 134 is fixedly connected with a second spring column 133; through the elastic deformation of the second spring column 133, the brake rod 134 can move axially along the brake disc 107 and move in and out of the brake groove. Specifically:

[0051] When the face gear 92 rotates and drives the spiral spring 101 to continuously elastically contract, the brake rod 134 moves back and forth in and out of the brake groove by axially moving relative to the brake disc 107, enabling the brake disc 107 to rotate with the elastic contraction of the spiral spring 101;

[0052] When the spiral spring 101 stops contracting, the brake rod 134 remains in the brake groove.

[0053] It should be noted that when the distance between the two mounting cylinders 5 is in the minimum state, the spiral spring 101 is in an elastically contracted state.

[0054] Both the brake rod 134 and the second spring column 133 are slidably mounted in the cover plate 15. The end of the second spring column 133 away from the brake rod 134 is fixedly connected to the pressing frame 131 located outside the cover plate 15; through the movement of the pressing frame 131, the brake rod 134 can move radially in and out of the brake groove along the brake disc 107. Specifically:

[0055] When the pressing frame 131 moves into the third mounting groove 25 and pushes the two reset driving blocks 11 away from each other, the pressing frame 131 drives the brake rod 134 to move through the second spring column 133, causing the brake rod 134 to move radially along the brake disc 107 towards the central axis of the brake disc 107 and move out of the brake groove;

[0056] When the pressing frame 131 moves out of the third mounting groove 25, the brake rod 134 moves radially along the brake disc 107 and moves into the brake groove.

[0057] By the brake rod 134 moving in and out of the brake groove along the axis of the brake disc 107, the energy storage and release component 10 is switched between the state of constant elastic potential energy and the state of increasing elastic potential energy; by the brake rod 134 moving in and out of the brake groove radially along the brake disc 107, the energy storage and release component 10 is switched between the state of constant elastic potential energy and the state of decreasing elastic potential energy.

[0058] In use, when it is necessary to reset the distance between the two displays and the distances between the lens and the displays, an external force is applied to move the pressure frame 131 towards the housing 2, driving the two push blocks 132 to move and push open the two reset driving blocks 11, stretching the spring 111, and moving the inclined surfaces on the two reset driving blocks 11 away from each other to a position where they can cooperate with the corresponding reset blocks 12. At the same time, the spring post two 133 and the brake lever 134 are both driven to move radially along the brake disc 107 until the brake lever 134 disengages from the brake groove. Then, the torsion spring 101 resets to release elastic potential energy and drives the torsion spring box 102 to rotate, causing the disc-shaped ratchet one 104, the disc-shaped ratchet two 105, the transmission column 1051, and the gear shaft 106 to rotate, driving the face gear 92 and the adjustment shaft 91 to rotate to move the two moving rods 93 closer together, bringing the two mounting cylinders 5 closer to each other, reducing the distance between the two displays, bringing the two reset blocks 12 closer together and moving them along the inclined surfaces on the two reset driving blocks 11 respectively, and moving the lens closer to the display.

[0059] After the distances between the two displays and between the lens and the displays are reset, the external force acting on the pressure frame 131 is removed. The spring 111 contracts to release elastic potential energy, driving the two reset driving blocks 11 to move back to their original positions and disengage from the reset blocks 12, and driving the pressure frame 131 to move back to its original position to move the brake lever 134 into the brake groove.

[0060] It should be noted that during the process of adjusting the distance between the two mounting cylinders 5 to be adapted to the interpupillary distance, when the face gear 92 rotates and drives the distance between the two mounting cylinders 5 to decrease, the gear shaft 106 rotates with the face gear 92 and drives the disc-shaped ratchet two 105 to rotate. However, since the brake lever 134 is located in the brake groove, the disc-shaped ratchet one 104 will not rotate with the disc-shaped ratchet two 105. The disc-shaped ratchet two 105 rotates and axially moves relative to the disc-shaped ratchet one 104, and reciprocally disengages from and contacts the disc-shaped ratchet one 104.

[0061] It should be noted that when the two mounting cylinders 5 are in the state of the minimum distance and the distance between the lens and the display is not in the minimum state, the distance between the lens and the display can still be restored to the minimum state by driving the reset blocks 12 to move by moving the two reset driving blocks 11 away from each other. In this case, since the distance between the moving rod 93 and the adjustment shaft 91 cannot be shortened any further, the torsion spring 101 will not release elastic potential energy after the brake lever 134 disengages from the brake groove.

[0062] In summary, in the present invention, the distance between the two displays is manually adjusted to be adapted to the interpupillary distance, and the distance between the lens and the display is manually adjusted to be adapted to the eyesight; by providing a volute spring 101 and enabling the volute spring 101 to increase elastic potential energy during the process of increasing the distance between the two displays, the released elastic potential energy of the volute spring 101 acts to reset the distance between the two displays; by providing a reset block 12, a reset drive block 11 and an energy release control assembly 13, the reset block 12 is connected to the lens, a slope cooperating with the reset block 12 is provided on the reset drive block 11, and the energy release control assembly 13 is used to control the volute spring 101 to release elastic potential energy and control the slope on the reset drive block 11 to contact the reset block 12, so that while the distance between the two displays is reduced, the distance between the lens and the display will also be reduced as the reset block 12 moves on the slope of the reset drive block 11, realizing the simultaneous reset of the distance between the two displays and the distance between the display and the lens. At the same time, the manual operation during the reset process is only to manually press the energy release control assembly 13, reducing the manual operation during the reset process, and thus reducing the workload during the reset process.

[0063] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A head-mounted virtual display device for a virtual venue, characterized in that It includes two mounting cylinders and an adjusting component for adjusting the distance between the two mounting cylinders. A display cylinder is installed in each of the two mounting cylinders. A display is embedded at one open end of each display cylinder, and a lens cylinder is embedded at the other open end of each display cylinder. A lens is fixed in each lens cylinder; a moving frame for driving the lens cylinder to axially move relative to the display cylinder is sleeved on the outer circumferential surface of each lens cylinder; a reset block is fixed at one end of each of the two moving frames close to each other, and a pair of reset driving blocks are arranged between the two reset blocks. Each reset driving block has an inclined surface for cooperating with the corresponding reset block; the two mounting cylinders approach each other and drive the reset blocks to move along the inclined surface, moving the lens closer to the display.

2. The head-mounted virtual display device for a virtual venue according to claim 1, wherein The adjusting component includes a face gear as a power input unit; an energy storage and release component is arranged between the face gear and the reset driving block. The energy storage and release component includes a coil spring and a brake disc surrounding the coil spring; the coil spring has a state of increasing elastic potential energy, a state of unchanged elastic potential energy, and a state of decreasing elastic potential energy when it is driven by the face gear to elastically contract when the face gear rotates to drive the two mounting cylinders to move away from each other; the brake disc has a circle of brake grooves.

3. The head-mounted virtual display device for virtual venues according to claim 2, wherein, A release energy control component is arranged between the energy storage and release component and the reset driving block; the release energy control component includes a brake rod. By moving the brake rod axially out of and into the brake groove of the brake disc, the coil spring is switched between the state of unchanged elastic potential energy and the state of increasing elastic potential energy. By moving the brake rod radially out of and into the brake groove of the brake disc, the coil spring is switched between the state of unchanged elastic potential energy and the state of decreasing elastic potential energy.

4. The head-mounted virtual display device for virtual venues according to claim 3, wherein The release energy control component further includes a pressure frame. The brake rod is connected and fixed to the pressure frame through a second spring column. Two push blocks are fixed on the pressure frame. The cross-sectional shapes of the two push blocks are both right-angled trapezoids, and the inclined surfaces of the two push blocks are respectively in contact with one end of the two reset driving blocks close to each other.

5. The head-mounted virtual display device for a virtual venue according to claim 4, characterized in that, The movement of the pressure frame drives the two push blocks to push open the two reset driving blocks, moving the inclined surfaces on the two reset driving blocks away from each other to a position where they can cooperate with the corresponding reset blocks, and driving the brake rod to radially move out of the brake groove of the brake disc, so as to switch the coil spring from the state of unchanged elastic potential energy to the state of decreasing elastic potential energy.

6. The head-mounted virtual display device for a virtual venue according to claim 5, wherein, A spring that stretches as the distance between the two reset driving blocks increases is fixedly connected between the two reset driving blocks.

7. The head-mounted virtual display device for a virtual venue according to claim 6, characterized in that, The elastic potential energy accumulated during the stretching process of the spring is used to move the reset driving block back to its original position and move the brake rod radially into the brake groove of the brake disc.

8. The head-mounted virtual display device for a virtual venue according to claim 4, wherein The pressure frame is configured to be manually controllable to move.

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