A head mounted display device

Abstract

The utility model belongs to the field of head-mounted display technology, and relates to a head-mounted display device, including a host, a transverse headband, and a longitudinal headband. An adjustment mechanism for adjusting the tightness of the longitudinal headband is provided between the longitudinal headband and the host or between the longitudinal headband and the transverse headband. An annular airbag structure arranged around the lens barrel structure is provided on the host, and also includes an elastic gas storage structure connected to the annular airbag structure and an extrusion structure arranged at the corresponding elastic gas storage structure. The extrusion structure is linked with the adjustment mechanism, and when the adjustment mechanism tightens the longitudinal headband, the extrusion structure can be driven to squeeze the elastic gas storage structure. When the adjustment mechanism tightens the longitudinal headband, the gas inside the elastic gas storage structure can be pressed into the annular airbag structure, so that the annular airbag structure expands and fits completely with the user's eyes, thereby solving the problem that the eye protection structure of the existing head-mounted display device cannot meet the use requirements of different users, and improving the user's wearing experience.

Description

Technical Field

[0001] The utility model belongs to the technical field of head-mounted display, and in particular relates to a head-mounted display device. Background Art

[0002] With the development of technology, more and more head-mounted display devices have emerged on the market, such as VR head-mounted display devices, AR head-mounted display devices, and MR head-mounted display devices. They integrate a variety of scientific technologies such as computer graphics technology, computer simulation technology, sensor technology, and display technology, and are a new means of human-computer interaction.

[0003] In order to ensure eye comfort, currently, a sponge pad or leather pad is usually set on the host of the head-mounted display device as an eye protection structure. When the head-mounted display device is worn, the eye protection structure fits the user's eyes. Due to the different sizes and shapes of different users' faces, the requirements for the softness and hardness of the eye protection structure are inconsistent, resulting in the eye protection structure of existing head-mounted display devices being unable to meet the needs of different users, seriously affecting the user's wearing experience. Utility Model Content

[0004] The utility model aims to provide a head mounted display device, aiming to solve the problem that the eye protection structure of the existing head mounted display device cannot meet the use requirements of different users, thereby improving the wearing experience of the user.

[0005] The utility model discloses a head-mounted display device, the head-mounted display device comprises a mainframe, a transverse headband connected to the mainframe, and a longitudinal headband connected between the middle part of the transverse headband and the mainframe, an adjusting mechanism for adjusting the tightness of the longitudinal headband is arranged between the longitudinal headband and the mainframe or between the longitudinal headband and the transverse headband, an annular airbag structure arranged around a lens barrel structure is arranged on the mainframe, and the head-mounted display device also comprises an elastic gas storage structure communicated with the annular airbag structure and an extrusion structure arranged corresponding to the elastic gas storage structure, the extrusion structure is linked with the adjusting mechanism, and when the adjusting mechanism tightens the longitudinal headband, the extrusion structure can be driven to extrude the elastic gas storage structure.

[0006] As an improvement, the adjustment mechanism is arranged between the longitudinal headband and the main unit, and the adjustment mechanism includes a shell fixed on the main unit, a rotating wheel rotatably installed on the outside of the shell, and a damping structure for limiting the rotating wheel to the position where it is rotated is provided between the rotating wheel and the shell; the belt body of the longitudinal headband passes through the shell and the cavity surrounded by the shell, and a stop structure is provided at the end of the belt body of the longitudinal headband passing through the shell and the cavity surrounded by the shell; the adjustment mechanism also includes a moving driving structure arranged inside the cavity surrounded by the shell for driving the belt body of the longitudinal headband to move, and the moving driving structure is transmission connected to the rotating wheel.

[0007] As an improvement, the stop structure is a limit block fixed at the end of the belt body of the longitudinal headband.

[0008] As an improvement, the mobile driving structure is a friction roller rotatably installed inside the cavity surrounded by the outer shell, and the belt body of the longitudinal headband passes between the friction roller and the inner wall of the outer shell on the corresponding side, and the belt body of the longitudinal headband is fitted together with the friction roller.

[0009] As an improvement, the strap body of the longitudinal headband is inserted into the cavity surrounded by the shell from a first side wall of the shell away from the host, and passes through a second side wall of the shell away from the user's face to the outside of the shell.

[0010] As an improvement, the elastic air storage structure is arranged inside the cavity surrounded by the outer shell, and the extrusion structure is fixedly connected to the friction roller.

[0011] As an improvement, the elastic air storage structure is configured to be in an arc shape and is disposed between the extrusion structure and the inner side wall of the second side wall.

[0012] As an improvement, the extrusion structure is a pressure plate arranged along the radial direction of the friction roller.

[0013] As an improvement, the shell is configured to be in a rectangular parallelepiped or cube shape.

[0014] As an improvement, the lens barrel structure includes a left lens barrel and a right lens barrel spaced apart on the main unit, and two annular airbag structures are provided, which are respectively fixed at the barrel openings of the left lens barrel and the right lens barrel, and the two annular airbag structures are connected.

[0015] Due to the adoption of the above technical scheme, the head-mounted display device of the utility model includes a host, a transverse headband connected to the host, and a longitudinal headband connected between the middle part of the transverse headband and the host, an adjustment mechanism for adjusting the tightness of the longitudinal headband is provided between the longitudinal headband and the host or between the longitudinal headband and the transverse headband, an annular airbag structure arranged around the lens barrel structure is provided on the host, and also includes an elastic air storage structure connected to the annular airbag structure and an extrusion structure arranged at the corresponding elastic air storage structure, the extrusion structure is linked with the adjustment mechanism, and when the adjustment mechanism tightens the longitudinal headband, the extrusion structure can be driven to squeeze the elastic air storage structure.

[0016] When wearing the head-mounted display device, the main unit is located on the front side of the user's face, the horizontal headband is arranged around the user's head, and the vertical headband is supported on the top of the user's head; when the adjustment mechanism tightens the vertical headband, the extrusion structure is linked with the adjustment mechanism, which can drive the extrusion structure to squeeze the elastic gas storage structure, and press the gas inside the elastic gas storage structure into the annular airbag structure to expand the annular airbag structure. During the expansion process, the annular airbag structure completely fits the user's eyes, can be suitable for the eyes of different users, and provide more fitting protection for the eyes of different users, which solves the problem that the eye protection structure of the existing head-mounted display device cannot meet the usage needs of different users and improves the user's wearing experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional schematic diagram of a head-mounted display device of the present utility model;

[0018] Figure 2 It is a three-dimensional structural schematic diagram of the extrusion structure of the head-mounted display device of the present invention;

[0019] Among them, 10, main unit; 11, left lens barrel; 12, right lens barrel; 20, horizontal headband; 30, vertical headband; 31, limit block; 40, adjustment mechanism; 41, outer shell; 42, friction roller; 43, rotating wheel; 50, annular airbag; 60, elastic air storage structure; 70, extrusion structure. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0021] Figure 1 and Figure 2 : is a schematic diagram of the structure of the head mounted display device of the utility model, wherein: Figure 1 A three-dimensional schematic diagram of a head mounted display device of the present invention is shown. Figure 2The three-dimensional structure schematic diagram of the extrusion structure of the head mounted display device of the present invention is shown. For the convenience of description, only the parts related to the present invention are shown in the figure.

[0022] Depend on Figure 1 and Figure 2 It can be seen that the head-mounted display device includes a host 10, a transverse headband 20 connected to the host 10, and a longitudinal headband 30 connected between the middle part of the transverse headband 20 and the host 10. An adjustment mechanism 40 for adjusting the tightness of the longitudinal headband 30 is provided between the longitudinal headband 30 and the host 10 or between the longitudinal headband 30 and the transverse headband 20. An annular airbag structure arranged around the lens barrel structure is provided on the host 10, and also includes an elastic air storage structure 60 connected to the annular airbag structure and an extrusion structure 70 arranged at the corresponding elastic air storage structure 60. The extrusion structure 70 is linked with the adjustment mechanism 40, and when the adjustment mechanism 40 tightens the longitudinal headband 30, it can drive the extrusion structure 70 to squeeze the elastic air storage structure 60.

[0023] When wearing the head-mounted display device, the host 10 is located on the front side of the user's face, the horizontal headband 20 is arranged around the user's head, and the vertical headband 30 is supported on the top of the user's head; when the adjustment mechanism 40 tightens the vertical headband 30, due to the linkage between the extrusion structure 70 and the adjustment mechanism 40, the extrusion structure 70 can be driven to squeeze the elastic gas storage structure 60, and the gas inside the elastic gas storage structure 60 is pressed into the annular airbag structure, so that the annular airbag structure expands, and during the expansion process, it completely fits with the user's eyes, which can be suitable for the eyes of different users and provide more fitting protection for the eyes of different users, thereby solving the problem that the eye protection structure of the existing head-mounted display device cannot meet the use needs of different users and improving the user's wearing experience.

[0024] In the utility model, the adjustment mechanism 40 is arranged between the longitudinal headband 30 and the host 10, and the adjustment mechanism 40 includes a shell 41 fixed on the host 10, and a rotating wheel 43 rotatably installed on the outer side of the shell 41. A damping structure for limiting the rotating wheel 43 to the position where the rotating wheel 43 is rotated is provided between the shell 41 and the shell 41. The damping structure is a torsion bearing, and damping plates can also be fixedly installed on the adjacent sides of the shell 41 and the rotating wheel 43 respectively; the belt body of the longitudinal headband 30 passes through the shell 41 and the cavity surrounded by the shell 41, and a stop structure is provided at the end of the belt body of the longitudinal headband 30 passing through the shell 41 and the cavity surrounded by the shell 41. Usually, the stop structure is a limit block 31 fixed at the end of the belt body of the longitudinal headband 30; the adjustment mechanism 40 also includes a moving drive structure arranged inside the cavity surrounded by the shell 41 for driving the belt body of the longitudinal headband 30 to move, and the moving drive structure is connected to the rotating wheel 43 in transmission.

[0025] When the rotating wheel 43 is rotated, after overcoming the damping force of the damping structure of the rotating wheel 43 and the housing 41 , the rotating wheel 43 can drive the movable driving structure to move, thereby driving the belt body of the longitudinal headband 30 to move to adjust the tightness of the longitudinal headband 30 .

[0026] Specifically, the moving driving structure is a friction roller 42 rotatably mounted inside the cavity surrounded by the housing 41, and the belt body of the longitudinal headband 30 passes between the friction roller 42 and the inner side wall of the housing 41 on the corresponding side, and the belt body of the longitudinal headband 30 is attached to the friction roller 42. Since the belt body of the longitudinal headband 30 is attached to the friction roller 42, the belt body of the longitudinal headband 30 can be driven to move by the friction force between the friction roller 42 and the belt body of the longitudinal headband 30.

[0027] In order to facilitate the belt body of the longitudinal headband 30 to always fit together with the friction roller 42, the belt body of the longitudinal headband 30 is inserted into the cavity surrounded by the shell 41 from the first side wall of the shell 41 away from the main unit 10, and after passing through between the friction roller 42 and the inner wall of the shell 41 on the corresponding side, it passes through the second side wall of the shell 41 away from the user's face to the outside of the shell 41.

[0028] For ease of understanding, the tightness adjustment of the longitudinal headband 30 is described as follows:

[0029] After wearing the head mounted display device, the stop structure is pulled away from the user's face to overcome the friction between the longitudinal headband 30 and the friction roller 42, and then the longitudinal headband 30 can be pulled to move, so that the longitudinal headband 30 is initially fitted to the top of the user's head;

[0030] When the damping force of the damping structure is relatively large, the torque acting on the friction roller 42 when the stop structure is pulled is smaller than the torque generated by the damping force of the damping structure between the rotating wheel 43 and the housing 41. When the belt body of the longitudinal headband 30 is pulled to move, the friction roller 42 does not rotate. After the belt body of the longitudinal headband 30 is initially fitted with the top of the user's head, the rotating wheel 43 needs to be rotated again, and the rotating wheel 43 drives the friction roller 42 to rotate, thereby driving the extrusion structure 70 to move and squeeze the elastic gas storage structure 60.

[0031] When the damping force of the damping structure is relatively small, the torque acting on the friction roller 42 when pulling the stop structure is greater than the torque generated by the damping force of the damping structure between the rotating wheel 43 and the outer shell 41. When the belt body of the longitudinal headband 30 is pulled to move, the friction roller 42 rotates accordingly, driving the extrusion structure 70 to squeeze the elastic air storage structure 60. After the belt body of the longitudinal headband 30 is initially fitted with the top of the user's head, continue to rotate the rotating wheel 43 to drive the friction roller 42 to rotate, which can further drive the extrusion structure 70 to move and continue to squeeze the elastic air storage structure 60.

[0032] In some other embodiments, the mobile driving structure includes a gear rotatably installed inside the cavity surrounded by the outer shell 41 and a plurality of transmission teeth correspondingly arranged on the belt body of the longitudinal headband 30, and the engagement between the gear and the plurality of transmission teeth is used to drive the belt body of the longitudinal headband 30 to move.

[0033] In order to facilitate the longitudinal headband 30 to pass through the housing 41 and the cavity surrounded by the housing 41, so that the longitudinal headband 30 is always combined with the mobile drive structure, the first side wall is the side wall of the housing 41 away from the host 10, and the second side wall is the side wall of the housing 41 away from the user's face. Usually, the housing 41 is set to a rectangular parallelepiped or a cube shape, and can also be set to other shapes as needed. Of course, the first side wall can also be the side wall of the housing 41 close to the user's face.

[0034] In the present invention, the elastic gas storage structure 60 is disposed inside the cavity surrounded by the outer shell 41 , and the extrusion structure 70 is fixedly connected to the friction roller 42 .

[0035] Specifically, the pressing structure 70 is a pressing plate disposed along the radial direction of the friction roller 42 .

[0036] like Figure 1 and Figure 2 As shown, the elastic air storage structure 60 is arranged in an arc shape and is arranged between the pressure plate and the inner side wall of the second side wall. Usually, the elastic air storage structure 60 is an elastic telescopic bag.

[0037] For ease of understanding, the elastic expansion bladder is described as follows:

[0038] The elastic and expandable sac is a well-known technology and its specific structure is not described in detail here. The elastic and expandable sac of the utility model is arranged in an arc shape. In order to facilitate the expansion and contraction of the elastic and expandable sac, an arc-shaped guide plate coaxially arranged with the friction roller 42 is fixed inside the cavity surrounded by the outer shell 41. The elastic and expandable sac is arranged along the side of the arc-shaped guide plate close to the friction roller 42. Usually, the arc-shaped guide plate is fixed on the inner wall of the outer shell 41 away from the user's face.

[0039] Of course, the elastic telescopic bag body can also be set as the following form, including a first arc-shaped cylinder and a second arc-shaped cylinder mounted together with the first arc-shaped cylinder, the outer ends of the first arc-shaped cylinder and the second arc-shaped cylinder are closed ends, and also include a long airbag arranged between the closed end of the first arc-shaped cylinder and the closed end of the second arc-shaped cylinder, and the long airbag is connected to the annular airbag structure.

[0040] In the present invention, the lens barrel structure includes a left lens barrel 11 and a right lens barrel 12 spaced apart on a host 10, and two annular airbag structures are provided, which are respectively fixed at the barrel openings of the left lens barrel 11 and the right lens barrel 12, and the two annular airbag structures are connected.

[0041] Specifically, a connecting tube is provided between the two annular airbag structures, and an air supply pipe is provided between the elastic air storage structure 60 and the connecting tube. When the elastic air storage structure 60 is squeezed, the gas inside the elastic air storage structure 60 is supplied to the two annular airbag structures through the air supply pipe and the connecting tube, respectively, so that the two annular airbag structures expand.

[0042] Typically, the annular airbag structure is a toroidal airbag 50 .

[0043] In some other embodiments, the annular airbag structure may also be provided as one, and is disposed around the outer circumference of the left lens barrel 11 and the right lens barrel 12 .

[0044] In the present invention, the transverse headband 20 and the longitudinal headband 30 are elastic belt structures, and of course, they can also be set as soft belt structures.

[0045] Specifically, the structures of the transverse headband 20 and the longitudinal headband 30 are well-known technologies, and their specific structures are not described in detail.

[0046] The above descriptions are only some embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A head mounted display device, comprising a host, a transverse headband connected to the host, and a longitudinal headband connected between the middle of the transverse headband and the host, characterized in that: An adjusting mechanism for adjusting the tightness of the longitudinal headband is provided between the longitudinal headband and the main unit or between the longitudinal headband and the transverse headband. An annular airbag structure arranged around the lens barrel structure is provided on the main unit, and also includes an elastic air storage structure connected to the annular airbag structure and an extrusion structure arranged corresponding to the elastic air storage structure. The extrusion structure is linked to the adjusting mechanism and can drive the extrusion structure to squeeze the elastic air storage structure when the adjusting mechanism tightens the longitudinal headband.

2. The head mounted display device according to claim 1, characterized in that: The adjustment mechanism is arranged between the longitudinal headband and the main unit, and the adjustment mechanism includes a shell fixed on the main unit, a rotating wheel rotatably installed on the outer side of the shell, and a damping structure for limiting the rotating wheel to a rotation position is provided between the rotating wheel and the shell; the belt body of the longitudinal headband passes through the shell and the cavity surrounded by the shell, and a stop structure is provided at the end of the belt body of the longitudinal headband passing through the shell and the cavity surrounded by the shell; the adjustment mechanism also includes a moving driving structure arranged inside the cavity surrounded by the shell for driving the belt body of the longitudinal headband to move, and the moving driving structure is transmission connected to the rotating wheel.

3. The head mounted display device according to claim 2, characterized in that: The stop structure is a limit block fixed at the end of the belt body of the longitudinal headband.

4. The head mounted display device according to claim 2, characterized in that: The mobile driving structure is a friction roller rotatably installed inside the cavity surrounded by the shell. The belt body of the longitudinal headband passes between the friction roller and the inner wall of the shell on the corresponding side, and the belt body of the longitudinal headband is fitted together with the friction roller.

5. The head mounted display device according to claim 4, characterized in that: The belt body of the longitudinal headband is inserted into the cavity surrounded by the shell from the first side wall of the shell away from the host, and passes through the second side wall of the shell away from the user's face to the outside of the shell.

6. The head mounted display device according to claim 5, characterized in that: The elastic air storage structure is arranged inside the cavity surrounded by the shell, and the extrusion structure is fixedly connected to the friction roller.

7. The head mounted display device according to claim 6, characterized in that: The elastic gas storage structure is configured in an arc shape and is disposed between the extrusion structure and the inner side wall of the second side wall.

8. The head mounted display device according to claim 6, characterized in that: The extrusion structure is a pressing plate arranged along the radial direction of the friction roller.

9. The head mounted display device according to claim 5, characterized in that: The shell is configured in a rectangular parallelepiped or a cube shape.

10. The head mounted display device according to any one of claims 1 to 9, characterized in that: The lens barrel structure comprises a left lens barrel and a right lens barrel which are arranged at intervals on the main machine. Two annular airbag structures are provided and are respectively fixed at the barrel openings of the left lens barrel and the right lens barrel. The two annular airbag structures are connected.

Images