Head-mounted display device

Abstract

The embodiment of the invention provides head-mounted display equipment, the head-mounted display equipment comprises a display main body, an adjusting unit and a head-mounted unit, the adjusting unit comprises an adjusting support and a transmission assembly, and the transmission assembly is movably connected to the adjusting support and can be switched between a first position and a second position. In the head-mounted display device provided by the embodiment of the invention, when the transmission assembly is located at the first position, the transmission assembly can drive the left lens cone and the right lens cone to get close to each other or get away from each other; under the condition that the transmission assembly is located at the second position, the transmission assembly is in transmission connection with the moving structure, so that the head-mounted unit is in a movable state, the two functions of IPD adjustment and ER adjustment are achieved through position adjustment of the same transmission assembly, the structure of the adjustment unit in the head-mounted display device can be simplified, and the adjustment efficiency is improved. And the utilization efficiency of the internal space of the head-mounted display equipment is ensured.

Description

Technical Field

[0001] The present application belongs to the technical field of wearable devices, and specifically, the present application relates to a head-mounted display device. Background Art

[0002] In the prior art, head-mounted display devices such as VR and AR generally display through left and right lens barrels, and fit the user's face through the headband to achieve a stable virtual display effect.

[0003] When head-mounted display devices such as VR and AR are used by different users, the distance between the left lens barrel and the right lens barrel needs to be adjusted to ensure that the display image of the head-mounted display device matches the user's pupil distance; and in order to achieve universality when the user is wearing glasses or not wearing glasses, the distance between the head mount and the user's face needs to be adjusted.

[0004] However, the conventional lens barrel adjustment mechanism and head-mounted adjustment mechanism occupy a large space inside the head-mounted display device, which not only increases the structural complexity of the head-mounted display device, but also reduces the utilization efficiency of the internal space of the head-mounted display device. Summary of the invention

[0005] One purpose of an embodiment of the present application is to provide a technical solution for a head-mounted display device.

[0006] According to a first aspect of an embodiment of the present application, a head mounted display device is provided, comprising:

[0007] A display body, the display body comprising a shell, a body bracket, a left lens barrel and a right lens barrel, the body bracket is arranged in the shell, and the left lens barrel and the right lens barrel are slidably connected to the body bracket;

[0008] An adjustment unit, the adjustment unit comprising an adjustment bracket and a transmission assembly, the adjustment bracket being fixedly connected to the main bracket, and the transmission assembly being movably connected to the adjustment bracket and capable of switching between a first position and a second position;

[0009] A head-mounted unit, the head-mounted unit comprising a head-mounted shell and a moving structure, the head-mounted shell is movably arranged in the shell, and the moving structure is arranged on the head-mounted shell;

[0010] When the transmission assembly is in the first position, the transmission assembly cooperates with the left lens barrel and the right lens barrel in transmission, and can drive the left lens barrel and the right lens barrel to move closer to each other or away from each other;

[0011] When the transmission assembly is in the second position, the transmission assembly is disengaged from the left lens barrel and the right lens barrel, and the transmission assembly is transmission-connected to the movable structure, so that the head-mounted unit is in a movable state.

[0012] Optionally, the transmission assembly includes a transmission gear, the left lens barrel and the right lens barrel are both provided with a first gear row, and the moving structure includes a second gear row;

[0013] When the transmission assembly is in the first position, the transmission gear is in transmission cooperation with the first tooth rows on the left lens barrel and the right lens barrel, and can drive the left lens barrel and the right lens barrel to move closer to each other or away from each other;

[0014] When the transmission assembly is in the second position, the transmission gear is disengaged from the first gear rows on the left lens barrel and the right lens barrel, and the transmission gear is transmission-connected to the second gear rows, so that the head-mounted unit is in a movable state.

[0015] Optionally, the transmission gear comprises a first gear ring and a second gear ring fixed coaxially;

[0016] When the transmission assembly is in the first position, the first gear ring is in transmission cooperation with the first gear rows on the left lens barrel and the right lens barrel, and can drive the left lens barrel and the right lens barrel to move closer to each other or away from each other;

[0017] When the transmission assembly is in the second position, the first gear ring is disengaged from the first gear rows on the left lens barrel and the right lens barrel, and the second gear ring is in transmission connection with the second gear row.

[0018] Optionally, a diameter of the first gear ring is greater than a diameter of the second gear ring.

[0019] Optionally, a transition assembly is further included, the transition assembly includes a first gear and a second gear, the first gear and the second gear are both rotatably connected to the main body bracket and mesh with each other;

[0020] The first gear ring is transmission-connected to the first gear, and the second gear is transmission-connected to the first gear rows on the left lens barrel and the right lens barrel, so that the transmission direction of the first gear ring is changed.

[0021] Optionally, the first gear has first teeth located on its side and second teeth located on its circumference, and the second gear is a spur gear;

[0022] The first gear ring is drivingly connected to the first teeth, and the second teeth are drivingly connected to the second gear.

[0023] Optionally, the second gear includes a third gear ring and a fourth gear ring that are coaxially fixed, and the diameter of the third gear ring is greater than the diameter of the fourth gear ring;

[0024] The second teeth are drivingly connected to the third gear ring, and the fourth gear ring is drivingly connected to the first gear rows on the left lens barrel and the right lens barrel.

[0025] Optionally, the adjustment bracket includes support blocks located on both sides of the transmission assembly, the support blocks are provided with through holes, the transmission assembly includes a transmission rod, the transmission gear is fixed on the transmission rod, and the two ends of the transmission rod are movably connected to the support blocks on both sides of the transmission assembly through the through holes.

[0026] Optionally, an opening is provided on the shell, and part of the transmission gear extends out of the opening.

[0027] Optionally, a sliding rod is provided on the main body bracket, and the left lens barrel and the right lens barrel are both provided with sliding grooves that slidably cooperate with the sliding rod, and the sliding direction of the left lens barrel and the right lens barrel is perpendicular to the moving direction of the head-mounted unit.

[0028] A technical effect of this application is:

[0029] The embodiment of the present application provides a head-mounted display device, which includes a display body, an adjustment unit and a head-mounted unit. When the transmission component is in the first position, the transmission component can drive the left lens barrel and the right lens barrel to move closer to each other or away from each other; when the transmission component is in the second position, the transmission component is connected to the mobile structure, so that the head-mounted unit is in a movable state. The two functions of IPD adjustment and ER adjustment are achieved by adjusting the position of the same transmission component, which can simplify the structure of the adjustment unit in the head-mounted display device and ensure the utilization efficiency of the internal space of the head-mounted display device.

[0030] Other features and advantages of the present application will become apparent from the following detailed description of exemplary embodiments of the present application with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the application and, together with the description, serve to explain the principles of the application.

[0032] Figure 1 A schematic diagram of the internal structure of a transmission component of a head mounted display device provided by an embodiment of the present application in a first position;

[0033] Figure 2 for Figure 1 A partial enlarged view of

[0034] Figure 3 A schematic diagram of the internal structure of a head mounted display device provided by an embodiment of the present application, wherein the transmission component is in a second position;

[0035] Figure 4 A schematic diagram of a transmission component of a head mounted display device provided in an embodiment of the present application in a first position;

[0036] Figure 5 A schematic diagram of a transmission component of a head mounted display device provided in an embodiment of the present application being in a second position.

[0037] in:

[0038] 1. display body; 11. housing; 111. opening; 12. main body bracket; 121. slide bar; 13. left lens barrel; 14. right lens barrel;

[0039] 2. Adjustment unit; 21. Adjustment bracket; 211. Support block; 22. Transmission assembly; 221. First gear ring; 222. Second gear ring; 223. Transmission rod;

[0040] 3. Head-mounted unit; 31. Head-mounted shell; 32. Moving structure;

[0041] 4. Transition assembly; 41. First gear; 42. Second gear. DETAILED DESCRIPTION

[0042] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangement of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present application.

[0043] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present application, its application, or uses.

[0044] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.

[0045] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0046] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0047] Reference Figure 1and Figure 2 , an embodiment of the present application provides a head mounted display device, the head mounted display device comprising:

[0048] The display body 1 includes a shell 11, a main body bracket 12, a left lens barrel 13 and a right lens barrel 14. The main body bracket 12 is arranged in the shell 11, and the left lens barrel 13 and the right lens barrel 14 are slidably connected to the main body bracket 12. Lenses and image sensors can be arranged in the left lens barrel 13 and the right lens barrel 14, so that the display body 1 can display virtual images.

[0049] The adjustment unit 2 and the head-mounted unit 3, the adjustment unit 2 includes an adjustment bracket 21 and a transmission assembly 22, the adjustment bracket 21 is fixedly connected to the main bracket 12, and the transmission assembly 22 is movably connected to the adjustment bracket 21 and can be switched between a first position and a second position to realize different adjustment functions of the head-mounted display device.

[0050] See also Figure 2 The head-mounted unit 3 includes a head-mounted shell 31 and a moving structure 32, wherein the head-mounted shell 31 is movably disposed in the shell 11, and the moving structure 32 is disposed on the head-mounted shell 31;

[0051] See also Figure 1 and Figure 2 When the transmission assembly 22 is in the first position, the transmission assembly 22 cooperates with the left lens barrel 13 and the right lens barrel 14, and can drive the left lens barrel 13 and the right lens barrel 14 to move closer to or away from each other; the transmission cooperation between the transmission assembly 22 and the left lens barrel 13 and the right lens barrel 14 can be a direct transmission cooperation formed by direct connection, or can be an indirect transmission cooperation formed by connection through an intermediate transition assembly.

[0052] See also Figure 3 When the transmission assembly 22 is in the second position, the transmission assembly 22 is disengaged from the left lens barrel 13 and the right lens barrel 14, and the transmission assembly 22 is connected to the movable structure 32, so that the head-mounted unit 3 is in a movable state.

[0053] Specifically, when the transmission assembly 22 is in the first position, the transmission assembly 22 can be in the first adjustment gear, and the transmission assembly 22 drives the left lens barrel 13 and the right lens barrel 14 to move closer to or away from each other, so as to achieve IPD (Interpupilary Distance) adjustment of the head-mounted display device, so as to facilitate matching of the head-mounted display device with different users when in use.

[0054] When the transmission component 22 is in the second position, the transmission component 22 can be in the second adjustment gear, and the transmission component 22 is connected to the mobile structure 32 in transmission, so that the head-mounted unit 3 is in a movable state; when the transmission component 22 drives the head-mounted unit 3 to move through the mobile structure 32, the head-mounted shell 31 can form an integrated head-mounted module with the straps and the face-contacting foam to achieve ER (Eye Relief) adjustment of the head-mounted display device, which is convenient for matching the head-mounted display device with different users when in use, and matching with the same user in different conditions of wearing glasses and not wearing glasses.

[0055] In the head-mounted display device provided in the embodiment of the present application, when the transmission assembly 22 is in the first position, the transmission assembly 22 can drive the left lens barrel 13 and the right lens barrel 14 to move closer to or away from each other to achieve IPD adjustment of the head-mounted display device; when the transmission assembly 22 is in the second position, the transmission assembly 22 is connected to the movable structure 32 through transmission, so that the head-mounted unit 3 is in a movable state to achieve ER adjustment of the head-mounted display device.

[0056] The head-mounted display device integrates IPD adjustment and ER adjustment into a set of adjustment systems, and realizes the two functions of IPD adjustment and ER adjustment by adjusting the position of the same transmission component 22, which can simplify the structure of the adjustment unit in the head-mounted display device, improve the convenience of users in using the head-mounted display device, and ensure the utilization efficiency of the internal space of the head-mounted display device.

[0057] Specifically, the transmission assembly 22 may protrude from the middle position of the upper surface of the shell 11 , so that the shifting gear of the transmission assembly 22 may be located in the middle area of ​​the shell 11 , so that the user can rotate or tilt the transmission assembly 22 .

[0058] In addition, the head-mounted display device provided in the embodiment of the present application may be an XR device, which refers to an imaging display device such as AR (augmented reality), VR (virtual reality) or MR (mixed reality).

[0059] Optionally, the transmission assembly 22 includes a transmission gear, the left lens barrel 13 and the right lens barrel 14 are both provided with a first gear row, and the moving structure 32 includes a second gear row;

[0060] When the transmission assembly 22 is in the first position, the transmission gear cooperates with the first gear rows on the left lens barrel 13 and the right lens barrel 14, and can drive the left lens barrel 13 and the right lens barrel 14 to move closer to each other or away from each other;

[0061] When the transmission assembly 22 is in the second position, the transmission gear is disengaged from the first gear rows on the left lens barrel 13 and the right lens barrel 14, and the transmission gear is transmission-connected to the second gear rows, so that the head-mounted unit 3 is in a movable state.

[0062] Specifically, when the transmission assembly 22 is in the first position, the transmission gear drives the left lens barrel 13 and the right lens barrel 14 to move closer to or away from each other when rotating. It can be understood that the transmission gear is in transmission connection with the first row of teeth on the left lens barrel 13 and the first row of teeth on the right lens barrel 14, so that the transmission gear can drive the left lens barrel 13 and the right lens barrel 14 to move closer to or away from each other when rotating.

[0063] The transmission gear can drive the left lens barrel 13 and the right lens barrel 14 to move closer to or away from each other when rotating. Alternatively, the transmission gear can be connected to the first tooth row on the left lens barrel 13 and the first tooth row on the right lens barrel 14 through a transition gear transmission. Similarly, the transmission gear can drive the left lens barrel 13 and the right lens barrel 14 to move closer to or away from each other when rotating, thereby ensuring that the transmission assembly 22 can adjust the distance between the left lens barrel 13 and the right lens barrel 14.

[0064] When the transmission assembly 22 is in the second position, the transmission gear is disengaged from the first tooth rows on the left lens barrel 13 and the right lens barrel 14, and the transmission gear is transmission-connected to the second tooth row so as to drive the head-mounted unit 3 to move through the second tooth row when the transmission gear rotates.

[0065] In addition, the transmission function of the transmission gear can also be achieved through chain transmission or worm gear transmission.

[0066] Alternatively, see Figure 2 , the transmission gear comprises a first gear ring 221 and a second gear ring 222 fixed coaxially;

[0067] When the transmission assembly 22 is in the first position, the first gear ring 221 is in transmission cooperation with the first gear rows on the left lens barrel 13 and the right lens barrel 14, and can drive the left lens barrel 13 and the right lens barrel 14 to move closer to each other or away from each other;

[0068] When the transmission assembly 22 is in the second position, the first gear ring 221 is disengaged from the first gear rows on the left lens barrel 13 and the right lens barrel 14 , and the second gear ring 222 is in transmission connection with the second gear rows.

[0069] Specifically, the first gear ring 221 can be used for transmission adjustment when the transmission assembly 22 is in the first position, and the second gear ring 222 can be used for transmission adjustment when the transmission assembly 22 is in the second position. When the transmission assembly 22 is in the first position, the transmission gear drives the first gear ring 221 and the second gear ring 222 to rotate when rotating, and the first gear ring 221 is in transmission cooperation with the first tooth row on the left lens barrel 13 and the right lens barrel 14, thereby driving the left lens barrel 13 and the right lens barrel 14 to move closer to or away from each other; at this time, the second gear ring 222 is not in transmission connection with other components, and thus does not play a transmission role.

[0070] When the transmission assembly 22 is in the second position, the transmission gear drives the first gear ring 221 and the second gear ring 222 to rotate when it rotates, and at this time, the first gear ring 221 is disengaged from the first gear rows on the left lens barrel 13 and the right lens barrel 14, that is, at this time, the first gear ring 221 does not play a transmission role; and the second gear ring 222 is connected to the second gear row to drive the head-mounted unit 3 to move through the second gear row when the second gear ring 222 rotates.

[0071] In another embodiment, the transmission gear may also only include a set of spur gear rings. When the transmission assembly 22 is in the first position, the spur gear rings are in transmission cooperation with the first tooth rows on the left lens barrel 13 and the right lens barrel 14. When the transmission assembly 22 is in the second position, the spur gear rings are disengaged from the first tooth rows on the left lens barrel 13 and the right lens barrel 14 and are transmission connected to the second tooth rows.

[0072] However, since the moving direction of the left lens barrel 13 and the right lens barrel 14 is different from the moving direction of the head-mounted unit 3, for example, when the moving direction of the left lens barrel 13 and the right lens barrel 14 are perpendicular to the moving direction of the head-mounted unit 3, the transmission cooperation between the spur gear ring and the first tooth row on the left lens barrel 13 and the right lens barrel 14 can be achieved with the help of a transition gear formed by a helical gear or a face gear.

[0073] Alternatively, see Figure 2 , the diameter of the first gear ring 221 is greater than the diameter of the second gear ring 222.

[0074] Specifically, the diameters of the above-mentioned gear rings are the diameters of the top circles of the gear rings. The moving distance range of the transmission assembly 22 from the first position to the second position can be 2-5 mm. When the diameter of the first gear ring 221 is larger than the diameter of the second gear ring 222, the first gear ring 221 can be used to adjust the larger distance between the left lens barrel 13 and the right lens barrel 14. For example, the farthest distance between the left lens barrel 13 and the right lens barrel 14 can be in the range of 10-30 mm; and the maximum distance of the head-mounted unit 3 moved by the second gear ring 222 can be in the range of 5-18 mm.

[0075] In one embodiment, the movement distance of the transmission assembly 22 from the first position to the second position is 3.5 mm, the maximum range of distance adjustment between the left lens barrel 13 and the right lens barrel 14 achieved by the first gear ring 221 is 20 mm, and the maximum distance the second gear ring 222 moves the head-mounted unit 3 is 12 mm.

[0076] Alternatively, see Figure 1 and Figure 2 The head mounted display device further comprises a transition component 4, wherein the transition component 4 comprises a first gear 41 and a second gear 42, wherein the first gear 41 and the second gear 42 are both rotatably connected to the main support 12 and mesh with each other;

[0077] The first gear ring 221 is drivingly connected to the first gear 41 , and the second gear 42 is drivingly connected to the first gear rows on the left lens barrel 13 and the right lens barrel 14 , so that the transmission direction of the first gear ring 221 is changed.

[0078] Specifically, the first gear 41 and the second gear 42 can be different types of gears. After the first gear ring 221 is connected to the first gear rows on the left lens barrel 13 and the right lens barrel 14 through the transition of the first gear 41 and the second gear 42, the transmission direction of the first gear ring 221 can be changed to improve the transmission flexibility of the transmission assembly 22.

[0079] In one embodiment, see Figure 2 , the first gear 41 has first teeth located on its side and second teeth located on its circumference, that is, the first gear 41 forms a face gear, and the second gear 42 is a spur gear;

[0080] The first gear ring 221 is helical and is drivingly connected to the first teeth, and the second teeth are drivingly connected to the second gear 42. Therefore, the transmission direction of the first gear ring 221 can be changed by the cooperation between the first teeth and the second teeth.

[0081] In another embodiment, the first gear 41 and the second gear 42 may be replaced by bevel gears, which can also achieve the change of the transmission direction of the first ring gear 221.

[0082] Alternatively, see Figure 2 , the second gear 42 includes a third gear ring and a fourth gear ring that are coaxially fixed, and the diameter of the third gear ring is greater than the diameter of the fourth gear ring;

[0083] The second teeth are drivingly connected to the third gear ring, and the fourth gear ring is drivingly connected to the first gear rows on the left lens barrel 13 and the right lens barrel 14 .

[0084] Specifically, the left lens barrel 13 and the right lens barrel 14 are moved closer to or farther from each other, so that the IPD (Interpupilary Distance) of the head-mounted display device can be adjusted. The higher the accuracy of the IPD adjustment, the clearer the picture viewed by the user through the head-mounted display device. When the diameter of the third gear ring is greater than the diameter of the fourth gear ring, the second gear can drive the third gear ring to rotate, and the third gear ring and the fourth gear ring can rotate synchronously. When the fourth gear ring drives the left lens barrel 13 and the right lens barrel 14 to move, the accuracy of the movement of the left lens barrel 13 and the right lens barrel 14 can be ensured, thereby improving the clarity of the picture displayed by the head-mounted display device.

[0085] Alternatively, see Figure 2 The adjusting bracket 21 includes support blocks 211 located on both sides of the transmission component 22, and a through hole is set on the support block 211. The transmission component 22 includes a transmission rod 223, and the transmission gear is fixed on the transmission rod 223. The two ends of the transmission rod 223 are movably connected to the support blocks 211 on both sides of the transmission component 22 through the through holes.

[0086] Specifically, the through hole on the support block 211 can be a circular through hole, the transmission rod 223 can be a cylindrical rod, the transmission gear can be fixed at the middle position of the transmission rod 223, and the two ends of the transmission rod 223 are respectively movably connected to the support blocks 211 on both sides of the transmission assembly 22 through the through holes to facilitate the rotation of the transmission gear and the switching of the transmission gear between the first position and the second position.

[0087] Alternatively, see Figure 4 and Figure 5 The housing 11 is provided with an opening 111 , and part of the transmission gear extends out from the opening 111 .

[0088] Specifically, when the transmission gear rotates relative to the adjustment bracket 21, or when the transmission gear drives the adjustment bracket 21 to tilt, it is necessary to apply a force on the transmission gear to make it rotate or tilt; and in order to facilitate the user to directly apply a force on the transmission gear, an opening 111 can be set on the shell 11, and part of the transmission gear can be extended from the opening 111, thereby improving the convenience of the transmission gear when rotating or tilting.

[0089] Alternatively, see Figure 1 and Figure 2 A sliding rod 121 is provided on the main body bracket 12, and the left lens barrel 13 and the right lens barrel 14 are both provided with sliding grooves that slide with the sliding rod 121, and the sliding directions of the left lens barrel 13 and the right lens barrel 14 are perpendicular to the moving direction of the head-mounted unit 3.

[0090] Specifically, when the transmission gear rotates to drive the left lens barrel 13 and the right lens barrel 14 to move closer to or away from each other, the left lens barrel 13 and the right lens barrel 14 can slide along the same slide bar 121. The slide bar 121 not only provides the moving direction of the left lens barrel 13 and the right lens barrel 14, but also ensures the stability of the movement of the left lens barrel 13 and the right lens barrel 14.

[0091] In another embodiment, a slide rail may be provided on the main support 12, and the left lens barrel 13 and the right lens barrel 14 are both provided with protrusions that slide with the slide rail to enable the left lens barrel 13 and the right lens barrel 14 to slide along the slide rail.

[0092] The sliding direction of the left lens barrel 13 and the right lens barrel 14 is perpendicular to the moving direction of the head-mounted unit 3. When the transmission assembly 22 is in the first position, the transmission assembly 22 can drive the left lens barrel 13 and the right lens barrel 14 to move in the forward and reverse directions. Figure 1 In the X direction as shown, the left lens barrel 13 and the right lens barrel 14 move toward each other or away from each other, that is, the left lens barrel 13 and the right lens barrel 14 move in the left and right directions of the head-mounted display device; when the transmission component 22 is in the second position, the transmission component 22 is connected to the moving structure 32 in a transmission manner, so that the transmission component 22 drives the head-mounted unit 3 to move in the forward and reverse directions. Figure 5 The movement in the Y direction shown, that is, the head-mounted unit 3 moves in the front-rear direction of the head-mounted display device, and the X direction is perpendicular to the Y direction. The two functions of IPD adjustment and ER adjustment of 90-degree cross movement are achieved by adjusting the position of the same transmission component 22.

[0093] Although some specific embodiments of the present application have been described in detail by way of example, it should be understood by those skilled in the art that the above examples are only for illustration, not for limiting the scope of the present application. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present application. The scope of the present application is defined by the appended claims.

Claims

1. A head mounted display device, characterized in that: include: A display body (1), the display body (1) comprising a housing (11), a main body support (12), a left lens barrel (13) and a right lens barrel (14), the main body support (12) being arranged in the housing (11), and the left lens barrel (13) and the right lens barrel (14) being slidably connected to the main body support (12); An adjustment unit (2), the adjustment unit (2) comprising an adjustment bracket (21) and a transmission assembly (22), the adjustment bracket (21) being fixedly connected to the main bracket (12), and the transmission assembly (22) being movably connected to the adjustment bracket (21) and capable of switching between a first position and a second position; A head-mounted unit (3), the head-mounted unit (3) comprising a head-mounted shell (31) and a movable structure (32), the head-mounted shell (31) being movably arranged in the shell (11), and the movable structure (32) being arranged on the head-mounted shell (31); When the transmission assembly (22) is in the first position, the transmission assembly (22) cooperates with the left lens barrel (13) and the right lens barrel (14) in transmission, and can drive the left lens barrel (13) and the right lens barrel (14) to move closer to each other or farther away from each other; When the transmission component (22) is in the second position, the transmission component (22) is disengaged from the left lens barrel (13) and the right lens barrel (14), and the transmission component (22) is transmission-connected to the movable structure (32), so that the head-mounted unit (3) is in a movable state.

2. The head mounted display device according to claim 1, characterized in that: The transmission assembly (22) comprises a transmission gear, the left lens barrel (13) and the right lens barrel (14) are both provided with a first tooth row, and the moving structure (32) comprises a second tooth row; When the transmission assembly (22) is in the first position, the transmission gear is in transmission cooperation with the first tooth rows on the left lens barrel (13) and the right lens barrel (14), and can drive the left lens barrel (13) and the right lens barrel (14) to move closer to each other or farther away from each other; When the transmission assembly (22) is in the second position, the transmission gear is disengaged from the first tooth row on the left lens barrel (13) and the right lens barrel (14), and the transmission gear is in transmission connection with the second tooth row, so that the head-mounted unit (3) is in a movable state.

3. The head mounted display device according to claim 2, characterized in that: The transmission gear comprises a first gear ring (221) and a second gear ring (222) which are coaxially fixed; When the transmission assembly (22) is in the first position, the first gear ring (221) is in transmission cooperation with the first gear rows on the left lens barrel (13) and the right lens barrel (14), and can drive the left lens barrel (13) and the right lens barrel (14) to move closer to each other or farther away from each other; When the transmission assembly (22) is in the second position, the first gear ring (221) is disengaged from the first gear rows on the left lens barrel (13) and the right lens barrel (14), and the second gear ring (222) is in transmission connection with the second gear rows.

4. The head mounted display device according to claim 3, characterized in that: The diameter of the first gear ring (221) is greater than the diameter of the second gear ring (222).

5. The head mounted display device according to claim 3, characterized in that: It also includes a transition assembly (4), the transition assembly (4) including a first gear (41) and a second gear (42), the first gear (41) and the second gear (42) are both rotatably connected to the main body support (12) and mesh with each other; The first gear ring (221) is transmission-connected to the first gear (41), and the second gear (42) is transmission-connected to the first gear rows on the left lens barrel (13) and the right lens barrel (14), so that the transmission direction of the first gear ring (221) is changed.

6. The head mounted display device according to claim 5, characterized in that: The first gear (41) has first teeth located on its side and second teeth located in its circumference, and the second gear (42) is a spur gear; The first gear ring (221) is drivingly connected to the first teeth, and the second teeth are drivingly connected to the second gear (42).

7. The head mounted display device according to claim 6, characterized in that: The second gear (42) comprises a third gear ring and a fourth gear ring which are coaxially fixed, and the diameter of the third gear ring is larger than the diameter of the fourth gear ring; The second teeth are drivingly connected to the third gear ring, and the fourth gear ring is drivingly connected to the first tooth rows on the left lens barrel (13) and the right lens barrel (14).

8. The head mounted display device according to claim 2, characterized in that: The adjustment bracket (21) comprises support blocks (211) located on both sides of the transmission assembly (22), the support blocks (211) being provided with through holes, the transmission assembly (22) comprising a transmission rod (223), the transmission gear being fixed on the transmission rod (223), and the two ends of the transmission rod (223) being movably connected to the support blocks (211) on both sides of the transmission assembly (22) through the through holes.

9. The head mounted display device according to claim 2, characterized in that: The housing (11) is provided with an opening (111), and part of the transmission gear protrudes from the opening (111).

10. The head mounted display device according to claim 1, characterized in that: The main body support (12) is provided with a sliding rod (121), and the left lens barrel (13) and the right lens barrel (14) are both provided with sliding grooves that slidably cooperate with the sliding rod (121), and the sliding directions of the left lens barrel (13) and the right lens barrel (14) are perpendicular to the moving direction of the head-mounted unit (3).

Images