Head-mounted virtual reality device

Abstract

The head-mounted virtual reality device provided by the present disclosure relates to the technical field of display devices and is used to solve the technical problem that the wire is damaged and the service life is reduced due to the friction between the strap and the wire when the tightness of the strap assembly is adjusted. The head-mounted virtual reality device comprises a first strap and a second strap, the second end of the first strap and the second end of the second strap are both arranged in a stacked manner in a shell, part of the wire is gathered on a first side of the shell, the second end of the second strap has an open slot to form a second sliding groove, the open slot is opposite to the wire, and the extension direction of the open slot is consistent with the moving direction of the second strap. When the length of the first strap and the second strap located outside the shell needs to be adjusted, the second end of the second strap moves towards the area where the wire is located, the wire can be accommodated in the open slot, the end of the second strap can be prevented from rubbing against the wire, and thus the service life of the wire is improved.

Description

Technical Field

[0001] This disclosure relates to the field of display device technology, and more particularly to a head-mounted virtual reality device. Background Technology

[0002] With the advancement and development of display technology, head-mounted virtual reality devices are gradually being applied to scenarios such as gaming and social interaction. Head-mounted virtual reality devices utilize VR principles to achieve the integration of virtual environments, interactive three-dimensional dynamic vision, and simulation of physical behavior, allowing users to immerse themselves in the virtual reality environment and experience a better sensory experience.

[0003] The head-mounted virtual reality device includes a display device at the front, a battery compartment assembly at the rear, a strap assembly between the two, and a strap adjustment mechanism. The battery compartment assembly includes a housing and a battery assembly located within the housing. The strap assembly includes a first strap and a second strap arranged on the left and right sides, respectively. One end of each of the first and second straps is connected to the display device, and the other end is connected to the strap adjustment mechanism, which can adjust the length of the strap assembly. The first strap integrates a wire; the first end of the wire is connected to the display device, and the second end of the wire is used to connect to the battery assembly, providing signals and operating current to the display device. The second end of the wire has a length allowance and is contained within the housing.

[0004] However, when adjusting the tightness of the strap assembly using the strap adjustment mechanism, the second strap may come into contact with and rub against the wire, causing damage to the wire and reducing its service life. Summary of the Invention

[0005] In view of the above problems, this disclosure provides a head-mounted virtual reality device that, when adjusting the tightness of the strap assembly using the strap adjustment mechanism, can prevent the first and second straps from meeting, thereby reducing the risk of friction on the wires and improving the service life of the wires.

[0006] To achieve the above objectives, the present disclosure provides the following technical solutions:

[0007] This disclosure provides a head-mounted virtual reality device including: a display device, a battery compartment assembly, a first strap, a second strap, a wire, and a strap adjustment mechanism; the battery compartment assembly includes a housing, the strap adjustment mechanism is disposed within the housing, the strap adjustment mechanism includes a drive gear and a first rack and a second rack meshing with and arranged opposite to the drive gear; a first end of the first strap and a first end of the second strap are respectively connected to both sides of the display device; a second end of the first strap and a second end of the second strap are respectively stacked within the housing; the second end of the first strap has a first slide, and the first rack is disposed on the side wall of the first slide; the wire is used to connect to the display device, and a portion of the wire is gathered on the first side of the housing; the second end of the second strap has a second slide, the second slide has an opening groove opposite to the wire, the extension direction of the opening groove is consistent with the extension direction of the second slide; the second rack is disposed on the side wall of the opening groove, and when the drive gear rotates and the second end of the second strap meets the wire on the first side of the housing, the wire is located within the opening groove.

[0008] The head-mounted virtual reality device provided in this embodiment has a first strap and a second strap, both of which are stacked inside a housing. Some wires are gathered on the first side of the housing. The second end of the second strap has an opening groove to form a second slide. When the wires meet the second strap, the wires can be accommodated in the second slide, thus avoiding interference with the second strap.

[0009] Compared with related technical solutions, where the second end of the second strap moves toward the area where the wire is located when the length of the first strap and the second strap outside the housing is adjusted by the strap adjustment mechanism, and the end of the second strap interferes with the wire, the second strap in this embodiment has an open groove. When the second end of the second strap moves toward the area where the wire is located, the wire can be accommodated in the open groove, which can avoid the end of the second strap from interfering with the wire, thereby avoiding friction on the wire and improving the service life of the wire.

[0010] In one alternative embodiment, the drive gear is centrally located within the housing; the second end of the first strap is located on the second side of the drive gear, and the second end of the second strap is located on the first side of the drive gear, with a variable overlap area between the second ends of both.

[0011] In one optional embodiment, the housing is provided with a first limiting structure and a second limiting structure; the first strap is provided with a first limiting portion, configured such that when the first limiting portion abuts against the first limiting structure, the first strap is at its longest position; the second strap is provided with a second limiting portion, configured such that when the second limiting portion abuts against the second limiting structure, the second strap is at its longest position. With this configuration, the housing in this embodiment of the present disclosure, equipped with the first and second limiting structures, can indicate the extreme positions of the maximum lengths of the first and second straps, improving the user experience.

[0012] In one optional embodiment, the first limiting structure is a limiting baffle disposed within the housing; along the extending direction of the first slide, the limiting baffle is disposed within the first slide and located on the second side of the drive gear, and is spaced apart from the drive gear.

[0013] In one optional embodiment, a through hole is provided at the second end of the first strap along its length to form the first slide; the portion between the first slide and the second end of the first strap forms a first limiting portion, and the first limiting portion is located on the second side of the drive gear.

[0014] In an optional embodiment, the through hole is a rectangular hole; the through hole includes a first sidewall, a second sidewall, a third sidewall, and a fourth sidewall, wherein the first sidewall and the second sidewall are arranged opposite each other along the length direction of the first strap, and the wire may be located between the first sidewall and the second sidewall; the first rack is located on the first sidewall or the second sidewall, the third sidewall is arranged opposite to the fourth sidewall and connected between the first sidewall and the second sidewall, wherein the fourth sidewall is located on the second side of the drive gear and forms the first limiting part.

[0015] In one optional embodiment, the second strap includes two strips forming the opening groove; the two strips are arranged parallel to each other and opposite to each other, the conductor may be located between the two strips, and the second rack is located on one of the strips; each strip is provided with a limiting post to form the second limiting portion.

[0016] In one optional embodiment, the housing is provided with a limiting ear to form the second limiting structure; the limiting ear is located on the movement path of the second strap, and the limiting ear is provided with a limiting groove that mates with the limiting post.

[0017] In an optional embodiment, the housing is further provided with guide surfaces opposite to each of the belts; one end of the limiting post is connected to the belt, and the other end of the limiting post extends to the guide surface and slides along the guide surface. This arrangement ensures that both belts slide along the guide surface, keeping them parallel during movement, thereby reducing the transmission resistance between the drive gear and the second rack and improving the mechanical transmission effect.

[0018] In one optional embodiment, the battery compartment assembly further includes a battery assembly; the housing has a battery compartment, and the limiting ear is disposed on the side wall of the battery compartment; the battery assembly is disposed within the battery compartment and forms an accommodating cavity with the bottom wall of the battery compartment; the first limiting structure and the second limiting structure are both disposed within the accommodating cavity.

[0019] In one optional embodiment, the battery assembly includes a main board and two opposing guide ribs; one side of the guide rib is connected to the main board, and the other side extends toward the bottom wall of the battery compartment, and one side of the guide rib forms the guide surface, which is in contact with the limiting post; the guide rib is provided with a through hole that mates with the limiting ear, and part of the limiting ear passes through the through hole and abuts against the guide post.

[0020] In one optional embodiment, the battery compartment assembly further includes a battery cover and a knob; the battery cover covers the housing and seals the battery compartment; the knob is rotatably connected to the battery cover, and one end of the drive gear passes through the battery assembly and is connected to the knob. This configuration allows the knob to be rotatably connected to the battery cover, and rotating the knob facilitates adjustment of the lengths of the first and second straps outside the housing, improving the user experience.

[0021] In one optional embodiment, the housing is provided with a first opening and a second opening on both sides, and the second ends of the first strap and the second strap extend into the accommodating cavity through the first opening and the second opening, respectively, and are connected to a portion of the drive gear located in the accommodating cavity.

[0022] In one optional embodiment, a portion of the wire is integrated within the first strap, while a portion of the wire is exposed outside the first strap. A first end of the wire is connected to the display device, and a second end of the wire is coiled and arranged within the receiving cavity, connecting to the side of the battery assembly near the battery cover. This arrangement, integrating the wire within the first strap, prevents damage to the wire and extends its lifespan.

[0023] In one optional embodiment, the second strap is positioned above the first strap and slides relative to it. This arrangement provides a larger arrangement space above the second strap, increasing the bending radius of the wire and preventing damage due to excessive bending, thereby extending the wire's lifespan. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this disclosure or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a first-angle schematic diagram of a head-mounted virtual reality device provided in an embodiment of this disclosure;

[0026] Figure 2 This is a second-angle schematic diagram of a head-mounted virtual reality device provided in an embodiment of this disclosure;

[0027] Figure 3 This is an exploded view of a head-mounted virtual reality device provided in an embodiment of this disclosure;

[0028] Figure 4 A schematic diagram illustrating the connection between the first strap, the second strap, and the strap adjustment mechanism provided in this embodiment of the disclosure. Figure 1 ;

[0029] Figure 5 A schematic diagram illustrating the connection between the first strap, the second strap, and the strap adjustment mechanism provided in this embodiment of the disclosure. Figure 2 ;

[0030] Figure 6 A schematic diagram showing the arrangement of the conductor at the second end of the first strap according to an embodiment of this disclosure;

[0031] Figure 7 This is a schematic diagram of the structure of the second end of the second strap provided in an embodiment of the present disclosure;

[0032] Figure 8 This is a schematic diagram showing the guide surface of the battery assembly and the second limiting part being installed together in a disclosed embodiment.

[0033] Explanation of reference numerals in the attached figures:

[0034] 10-Strap assembly;

[0035] 11-First strap; 111-First slide; 112-First limiting part;

[0036] 12-Second strap; 121-Second slide; 122-Second limiting part; 123-Strip;

[0037] 20 - Shell;

[0038] 21-Battery compartment;

[0039] 211 - First limiting structure; 212 - Second limiting structure;

[0040] 30 - Battery assembly;

[0041] 31-Main board; 32-Guide rib plate; 321-Guide surface;

[0042] 40-Battery cover;

[0043] 50-Wire;

[0044] 60 - Strap adjustment mechanism;

[0045] 61-Drive gear;

[0046] 62-First rack;

[0047] 63 - Second rack;

[0048] 70 - Knob;

[0049] 100 - Head-mounted virtual reality device;

[0050] 101 - Display device;

[0051] 102-Battery compartment assembly. Detailed Implementation

[0052] As described in the background section, in related technologies, when adjusting the tightness of the head-mounted virtual reality device using a strap adjustment mechanism, friction occurs between the wires and the strap assembly, leading to wire wear. The inventors have discovered that this problem arises because the head-mounted virtual reality device includes a strap adjustment mechanism, a strap assembly for connecting a front-end display device and a rear-end battery compartment assembly, and the battery compartment assembly includes a housing and a battery assembly housed within the housing. The strap assembly includes a first strap and a second strap arranged on the left and right sides. One end of the first and second straps is connected to the front-end display device, and the other end is connected to the strap adjustment mechanism, which adjusts the length of the strap assembly. The first strap integrates wires; the first end of the wire connects to the display device, and the second end connects to the battery assembly, providing signals and operating current to the display device. The second end of the wire has a length allowance and is contained within the housing.

[0053] However, the first and second straps are stacked, with the second end of the second strap facing the wire. When the length of the first and second straps outside the housing is adjusted using the strap adjustment mechanism, the second end of the second strap moves toward the area where the wire is located, and the end of the second strap collides with the wire, thereby rubbing against the wire and causing it to wear.

[0054] To address the aforementioned technical problems, this disclosure provides a head-mounted virtual reality device. By providing an opening groove at the second end of the second strap, when the second end of the second strap moves toward the area where the wire is located, the wire can be accommodated in the opening groove, which can avoid interference between the end of the second strap and the wire, thereby preventing the wire from being rubbed and improving the service life of the wire.

[0055] To make the above-mentioned objects, features, and advantages of the embodiments of this disclosure more apparent and understandable, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are merely some embodiments of this disclosure, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0056] For the purpose of illustrating the embodiments of this disclosure, as follows: Figure 1 The dashed line L in the diagram is the center line, according to Figure 1 The portion to the left of the dashed line L shown in the diagram can be defined as the first side of the head-mounted virtual reality device, the portion to the right of the dashed line L can be positioned as the second side of the head-mounted virtual reality device, and the front and rear ends of the head-mounted virtual reality device can be defined along the direction indicated by the arrow.

[0057] like Figure 1 and Figure 2 As shown, the head-mounted virtual reality device 100 provided in this embodiment includes a display device 101, a battery compartment assembly 102, a strap assembly 10, a cable 50, a strap adjustment mechanism 60, etc., wherein the display device 101 is located at the front end of the entire device, and the battery compartment assembly 102 is located at the rear end of the entire device. The battery compartment assembly 102 includes a housing 20 and a battery assembly 30 located within the housing 20, wherein the strap adjustment mechanism 60 is installed within the housing 20 for adjusting the length of the strap assembly 10.

[0058] The strap assembly 10 is disposed between the battery compartment assembly 102 and the display device 101. The strap assembly 10 includes a first strap 11 and a second strap 12. The first end of the first strap 11 is connected to the first side of the display device 101, and the second end of the first strap 11 extends into the housing 20 and is connected to the strap adjustment mechanism 60 located in the housing 20. The first end of the second strap 12 is connected to the second side of the display device 101, and the second end of the second strap 12 extends into the housing 20 and is connected to the head-mounted adjustment mechanism located in the housing 20.

[0059] When a user uses the aforementioned head-mounted virtual reality device 100, since different users have different head circumferences, the length of the strap assembly 10 needs to be adjusted using the head-mounted adjustment mechanism 60 to ensure that the strap assembly 10 fits snugly against the head. This makes the head-mounted virtual reality device 100 suitable for different users, improving its applicability. After being worn, the battery compartment assembly 102 is positioned behind the user's head, and the display device 101 is positioned on the user's face, in front of the user's eyes.

[0060] like Figure 3 As shown, the battery compartment assembly 102 provided in this embodiment includes not only a housing 20 and a battery assembly 30, but also a battery cover 40. The housing 20 has a battery compartment 21 for installing the battery assembly 30. The battery assembly 30 is installed and fixed within the battery compartment 21, forming an accommodating cavity between the battery assembly 30 and the bottom wall of the battery compartment 21. The battery cover 40 is detachably connected to the housing 20 and can seal the entire opening of the battery compartment 21, meaning the battery assembly 30 is located between the battery cover 40 and the bottom wall of the housing 20, and the battery cover 40 can protect the battery assembly 30.

[0061] The sidewall of the housing 20 is provided with a first opening and a second opening. The first opening is located on the first side of the housing 20 and is configured to cooperate with the second end of the first strap 11 so that the second end of the first strap 11 extends into the aforementioned receiving cavity through the first opening. Similarly, the second opening is located on the second side of the housing 20 and is configured to cooperate with the second strap 12 so that the second end of the second strap 12 extends into the aforementioned receiving cavity through the second opening, and the second opening can be configured opposite to the first opening.

[0062] Furthermore, the battery compartment assembly 102 also includes a knob 70, which is rotatably connected to the battery cover 40 and connected to the strap adjustment mechanism 60. Specifically, the strap adjustment mechanism 60 includes a drive gear 61, a first rack 62 and a second rack 63 meshing with the drive gear 61, wherein the drive gear 61 is generally cylindrical, and the outer circumferential surface of the drive gear 61 is provided with transmission teeth extending along its axial direction, which mesh with the first rack 62 and the second rack 63 respectively.

[0063] One end of the drive gear 61 passes through the battery assembly 30 and is rotatably connected to the knob 70. Rotating the knob 70 can drive the drive gear 61 to rotate, thereby causing the first rack 62 and the second rack 63 to move. For example, by controlling the rotation direction of the knob 70, the first rack 62 and the second rack 63 can move in opposite directions or in the same direction.

[0064] For example, the drive gear 61 can be centrally arranged within the housing 20, that is, the drive gear 61 is centrally arranged within the receiving cavity, and the second end of the first strap 11 is located on the second side of the drive gear 61, meaning that the second end of the first strap 11 can extend to the second side of the housing 20. The second end of the second strap 12 is located on the first side of the drive gear 61, meaning that the second end of the second strap 12 can extend to the first side of the housing 20. With this arrangement, the second ends of the first strap 11 and the second ends of the second strap 12 have an overlapping area, and the drive gear 61 can be located within the overlapping area. When the first rack and the second rack move, the overlapping area can change, thereby increasing the overall length of the adjustable strap assembly 10.

[0065] like Figure 4 and Figure 5 As shown, in this embodiment, the second end of the first strap 11 is located within the accommodating cavity and is connected to the drive gear 61 for transmission. The second end of the first strap 11 is provided with a first slide rail 111. The first slide rail 111 can be an opening groove or a through hole formed on the first strap 11, and the extending direction of the opening groove or through hole is consistent with the adjustable length direction of the first strap 11. A first rack 62 is disposed on the inner wall of the first slide rail 111, and the extending direction of the first rack 62 is consistent with the adjustable length direction of the first strap 11.

[0066] The aforementioned drive gear 61 is located within the first slide rail 111. Part of the first slide rail 111 is located on the first side of the housing 20, and part of the first slide rail 111 is located on the second side of the housing 20. That is, part of the first slide rail 111 can extend to the second side (right side) of the drive gear 61, and the first rack 62 meshes with the drive gear 61.

[0067] The wire 50 provided in this embodiment is used to connect the battery assembly 30 and the display device 101. For example, the wire 50 can be a power line, signal line, etc., and provides signals and operating current to the display device 101. The wire 50 is disposed on the first strap 11, for example, the wire 50 is integrated into the first strap 11. In this way, the first strap 11 can protect the wire 50, prevent the wire 50 from being damaged, and further improve the service life of the wire 50.

[0068] The first end of the wire 50 is connected to the display device 101, and the second end of the wire 50 is exposed from the second end of the first strap 11. The exposed part of the wire 50 can be curled up on the first side of the housing 20 and located in the first slide rail 111.

[0069] For example, the wire 50 is arranged in the middle of the first strap 11, and the part exposed from the first strap 11 can be accommodated in the first slide rail 111. The wire 50 has a certain margin to adapt to the length change of the first strap 11. The wire 50 is arranged in a coiled shape in the accommodating cavity and is located on the first side of the drive gear 61.

[0070] Furthermore, the second end of the wire 50 is connected to the battery assembly 30; the second end of the wire 50 can be wound around to the surface of the battery assembly 30 near the battery cover 40 and connected to the device on the battery assembly 30; in this way, the layout of the battery assembly 30 and the wire 50 can be optimized, the volume of the entire housing 20 can be reduced, and it is beneficial to achieve device miniaturization.

[0071] Similarly, the second end of the second strap 12 is located inside the accommodating cavity and is connected to the drive gear 61. The second end of the second strap 12 is provided with a second slide 121. The second slide 121 can be an open groove formed on the second strap 12. The extension direction of the open groove is consistent with the adjustable length direction of the second strap 12, and the opening of the open groove faces the wire 50. That is, the open groove can be arranged opposite to the wire 50. When the wire 50 meets the second strap 12, the wire 50 can be accommodated in the open groove, thus avoiding interference between the wire 50 and the second strap 12 when they meet.

[0072] The aforementioned drive gear 61 is located within the second slide rail 121. Part of the second slide rail 121 is located on the first side of the housing 20, and part of the second slide rail 121 is located on the second side of the housing 20. That is, part of the second slide rail 121 can extend to the first side (left side) of the drive gear 61. The second rack 63 is disposed on the inner wall of the second slide rail 121. The second rack 63 meshes with the drive gear 61, and the second rack 63 is opposite to the first rack 62. That is, the first rack 62 and the second rack 63 respectively mesh with the transmission teeth of the drive gear 61. When the drive gear 61 is rotated, the first rack 62 and the second rack 63 move in opposite directions.

[0073] In this embodiment, the second ends of the first strap 11 and the second strap 12 are located in different planes, meaning the second ends of the first strap 11 and the second strap 12 are stacked within the accommodating cavity. For example, the second end of the first strap 11 is positioned above the second end of the second strap 12, and the first strap 11 and the second strap 12 are slidable relative to each other. Preferably, in this embodiment, the wire 50 is integrated onto the first strap 11, allowing the second end of the first strap 11 to be positioned below the second end of the second strap 12.

[0074] With this configuration, the space between the first strap 11 and the battery assembly 30 is larger, which is more conducive to arranging the wires 50 that are exposed from the first strap 11. This increases the bending radius of the wires 50 and prevents the wires 50 from being damaged due to excessive bending, thereby improving the service life of the wires 50.

[0075] In this embodiment of the present disclosure, when adjusting the tightness of the strap assembly 10 using the strap adjustment mechanism 60, the adjustment process is as follows:

[0076] When the length of the strap assembly 10 needs to be increased, the drive gear 61 is rotated to move the second end of the first strap 11 from the second side toward the first side (which can be defined as the first direction in this embodiment); correspondingly, the movement direction of the second strap 12 is opposite to the movement direction of the first strap 11, and the second end of the second strap 12 moves from the first side toward the second side (which can be defined as the second direction in this embodiment). At this time, the adjustable length of the first strap 11 increases and the adjustable length of the second strap 12 increases.

[0077] Conversely, when the length of the strap assembly 10 needs to be reduced, the drive gear 61 is rotated to move the second end of the first strap 11 from the first side toward the second side (second direction); correspondingly, the movement direction of the second strap 12 is opposite to that of the first strap 11, and the second end of the second strap 12 moves from the second side toward the first side (first direction). At this time, the adjustable length of the first strap 11 and the adjustable length of the second strap 12 both decrease.

[0078] However, when the second end of the second strap 12 meets the wire 50 on the first side of the housing 20, the wire 50 can be accommodated in the second slide 121, which can prevent the wire 50 from interfering with the second strap 12 and causing friction damage.

[0079] Compared with the existing technical solution, where the first strap 11 and the second strap 12 move in opposite directions when the length of the first strap 11 and the second strap 12 outside the housing 20 is adjusted by the strap adjustment mechanism 60, and the end of the second strap 12 interferes with the wire 50, the second strap 12 in this embodiment has an open groove. When the second end of the second strap 12 moves toward the area where the wire 50 is located and meets it, the wire 50 can be accommodated in the open groove, which can avoid the end of the second strap 12 interfering with the wire 50, thereby avoiding friction on the wire 50 and improving the service life of the wire 50.

[0080] like Figure 6 and Figure 7 As shown, based on the above embodiments, in this embodiment, the housing 20 is further provided with a first limiting structure 211 and a second limiting structure 212. The first limiting structure 211 is used to limit the maximum adjustment length of the first strap 11. Similarly, the second limiting structure 212 is used to limit the maximum adjustment length of the second strap 12.

[0081] The first strap 11 is provided with a first limiting part 112, which cooperates with a first limiting structure 211. The first limiting structure 211 is located on the movement path of the first strap 11. When the first limiting part 112 abuts against the first limiting structure 211, the first strap 11 is at its longest position, that is, the length of the first strap 11 outside the housing 20 is the longest.

[0082] Similarly, the second strap 12 is provided with a second limiting part 122, which is configured to cooperate with the second limiting structure 212, which is located on the movement path of the second strap 12. When the second limiting part 122 abuts against the second limiting structure 212, the second strap 12 is at its longest position, that is, the length of the second strap 12 outside the housing 20 is the longest.

[0083] It should be noted that when the first limiting structure 211 abuts against the first limiting part 112, the first rack 62 remains engaged with the drive gear 61. Correspondingly, when the second limiting structure 212 abuts against the second limiting part 122, the second rack 63 remains engaged with the drive gear 61. Furthermore, in this embodiment, the minimum adjustment length of the first strap 11 and the second strap 12 can be achieved by reasonably designing the layout space of the accommodating cavity, the length and position of the first rack 62 and the second rack 63, which will not be elaborated further in this embodiment.

[0084] Based on the above embodiments, in this embodiment, the second end of the first strap 11 can form a first limiting portion 112 while forming the first slide 111. For example... Figure 6As shown, a through hole is provided at the second end of the first strap 11 along its length direction, and the extension direction of the through hole is consistent with the length direction of the first strap 11, so as to form a first slide rail 111 at the second end of the first strap 11. The portion between the first slide rail 111 and the second end of the first strap 11 forms a first limiting portion 112, and the first limiting portion 112 is located on the second side of the drive gear 61, that is, the drive gear 61 is located in the through hole.

[0085] For example, in this embodiment of the present disclosure, the through hole provided at the second end of the first strap 11 can be a rectangular hole. The through hole includes a first sidewall and a second sidewall disposed opposite to each other, and the first sidewall and the second sidewall are long sidewalls, that is, the extending direction of the first sidewall and the second sidewall is consistent with the length direction of the through hole.

[0086] Furthermore, the first rack 62 can be selectively arranged on the first sidewall or the second sidewall. For example, the first rack 62 can be arranged on the first sidewall, and the two can be an integral structure, that is, the first rack 62 is directly formed on the first sidewall of the through hole; this can improve the connection reliability between the first rack 62 and the first strap 11.

[0087] The through-hole also includes a third sidewall and a fourth sidewall disposed between the first sidewall and the second sidewall. The third and fourth sidewalls are disposed opposite to each other and are used to connect the first and second sidewalls to form a closed rectangular hole. The third and fourth sidewalls are short sidewalls, that is, the extension direction of the third and fourth sidewalls is consistent with the width direction of the through-hole, and the width of the through-hole must be greater than the width of the wire 50 so that the wire 50 can pass through the wall surface of the third sidewall and be located inside the through-hole.

[0088] The fourth sidewall is located on the second side of the drive gear 61. The portion between the fourth sidewall and the second end edge of the second strap 12 forms a first limiting portion 112. The first limiting portion 112 is located on the second side of the drive gear 61 and does not contact the drive gear 61. This arrangement can improve the structural strength of the second end of the first strap 11, so that the second end of the first strap 11 can slide stably within the accommodating cavity.

[0089] Based on the above embodiment, the first limiting structure 211 is disposed in the accommodating cavity and located on the second side of the drive gear 61. In order to prevent the first limiting part 112 from contacting the drive gear 61, the first limiting structure 211 and the drive gear 61 are kept apart along the moving direction of the first strap 11. The first limiting structure 211 and the drive gear 61 are both located in the through hole, and the first limiting part 112 is located on the side of the first limiting structure 211 away from the drive gear 61.

[0090] For example, the bottom wall of the battery compartment 21 is provided with a limiting baffle, which is located between the drive gear 61 and the first limiting part 112, and the limiting baffle can abut against the fourth side wall. Preferably, the abutting surface between the limiting baffle and the fourth side wall can be a plane to improve the abutting effect.

[0091] For example, the limiting baffle can be a rectangular plate. One end of the limiting baffle is fixed to the bottom wall of the battery compartment 21, and the other end can protrude from the surface of the first strap 11. The limiting baffle can be set parallel to the fourth side wall and smaller than the width of the fourth side wall so that the first strap 11 can slide smoothly relative to the limiting baffle.

[0092] In this embodiment, rotating the knob 70 in the set direction can cause the drive gear 61 to move the first strap 11 and the second strap 12. When the first limiting part 112 abuts against the first limiting structure 211, the portion of the second end of the first strap 11 inside the accommodating cavity decreases, and the portion outside the accommodating cavity increases. That is, the adjustable length of the first strap 11 outside the housing 20 increases, and the adjustable length is at its maximum.

[0093] like Figure 7 As shown, in this embodiment of the present disclosure, the second end of the second strap 12 is provided with an opening groove to form a second slide 121. The second strap 12 includes two opposite and parallel strips 123 arranged to form the opening groove, and the gap between the two strips 123 forms the second slide 121. The width of the gap between the two strips 123 is greater than the width of the wire 50, so that the wire 50 can be accommodated in the opening groove and interference is avoided when the wire 50 meets the second strap 12.

[0094] Furthermore, the second rack 63 can be selectively arranged on the side wall of a belt 123; or the second rack 63 and a belt 123 can be integrally formed, i.e., transmission teeth can be made on a belt 123 to form the second rack 63. The second rack 63 can be arranged opposite to the first rack 62 and mesh with the drive gear 61 respectively. Each belt 123 has a limiting post at its end to form a second limiting part 122. For example, one end of the limiting post can be vertically connected to the top surface of the belt 123, and the other end extends in a direction perpendicular to the moving direction of the second strap 12, i.e., the extending direction of the limiting post is consistent with the axial direction of the drive gear 61.

[0095] Correspondingly, a second limiting structure 212 that cooperates with the limiting post is provided inside the housing 20. The second limiting structure 212 may be a limiting ear provided inside the housing 20. The limiting ear may be provided on the side wall of the battery compartment 21 and the limiting ear is located on the moving path of the second strap 12 so that the limiting post can abut against the limiting ear.

[0096] A limiting groove is provided on the side of the limiting ear facing the limiting post. When the second strap 12 moves from the first side to the second side, the limiting post can move to the limiting ear and be further embedded in the limiting groove so that the limiting post abuts against the limiting ear, that is, the aforementioned second limiting part 122 abuts against the second limiting structure 212. At this time, the portion of the second end of the second strap 12 inside the accommodating cavity decreases, and the portion outside the accommodating cavity increases, that is, the adjustable length of the second strap 12 outside the housing 20 increases, and the adjustable length is at its maximum.

[0097] like Figure 8 As shown, the housing 20 provided in this embodiment of the present disclosure is also provided with a guide surface 321. The guide surface 321 is configured to cooperate with the limiting post so that the limiting post can slide on the guide surface 321 during the movement of the second strap 12, so that the two straps 123 remain parallel to each other, thereby reducing the transmission resistance between the drive gear 61 and the second rack 63 and improving the mechanical transmission effect.

[0098] Specifically, the battery assembly 30 in this embodiment includes a main board 31 and two oppositely arranged guide ribs 32, wherein the two guide ribs 32 are located on the side of the main board 31 facing the receiving cavity, the top of the guide ribs 32 is connected to the main board 31, the guide ribs 32 extend vertically toward the bottom wall of the battery compartment 21, and the side of the guide ribs 32 is used to form a guide surface 321.

[0099] The space between the two guide ribs 32 is opposite to the first slide rail 111 and the second slide rail 121, respectively. The surfaces of the two guide ribs 32 facing each other are the first surfaces of the guide ribs 32, and the other surface of the two guide ribs 32 is the second surface. When the battery assembly 30 is installed into the battery compartment 21, the second surface of the guide ribs 32 can fit against the guide post, so that the guide post can move along the guide surface 321. Under the limitation of the two guide ribs 32, the two strips 123 of the second strap 12 can remain parallel, preventing the two strips 123 from interfering and avoiding affecting the mechanical transmission effect.

[0100] It should be noted that in this embodiment, the side wall of the battery compartment 21 where the limiting ear is fixed is close to the first surface of the guide rib plate 32. That is, the side wall of the battery compartment 21 where the limiting ear is located and the limiting post are located on opposite sides of the guide rib plate 32. Therefore, the guide rib plate 32 is also provided with a through hole so that part of the limiting ear can pass through the through hole and part of the limiting ear can protrude from the guide surface 321 of the guide rib plate 32, so that when the limiting post slides on the guide surface 321, it can abut against the limiting ear.

[0101] The various embodiments or implementation methods described in this specification are presented in a progressive manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the embodiments can be referred to each other.

[0102] It should be noted that the terms "one embodiment," "embodiment," "exemplary embodiment," "some embodiments," etc., mentioned in the specification indicate that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Moreover, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not, is within the knowledge scope of those skilled in the art.

[0103] Generally speaking, terms should be understood at least in part by their use in context. For example, at least in part by context, the term "one or more" as used in the text can be used to describe any feature, structure, or characteristic of the singular meaning, or a combination of features, structures, or characteristics of the plural meaning. Similarly, at least in part by context, terms such as "a" or "the" can also be understood to convey either singular or plural usage.

[0104] It should be readily understood that the terms “on,” “above,” and “on top of” in this disclosure should be interpreted in the broadest possible sense, such that “on” means not only “directly on something” but also “on something” with an intermediate feature or layer therebetween, and that “above” or “on top of” means not only “on top of something” but also “on top of something” without an intermediate feature or layer therebetween (i.e., directly on something).

[0105] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure, and are not intended to limit them. Although this disclosure has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this disclosure.

Claims

1. A head-mounted virtual reality device, characterized in that, include: Display device, battery compartment assembly, first strap, second strap, wires, and strap adjustment mechanism; The battery compartment assembly includes a housing, and the strap adjustment mechanism is disposed within the housing. The strap adjustment mechanism includes a drive gear and a first rack and a second rack that mesh with the drive gear and are arranged opposite to each other. The first end of the first strap and the first end of the second strap are respectively connected to the two sides of the display device; the second ends of the first strap and the second strap are stacked inside the housing. The second end of the first strap has a first slide rail, and the first rack is disposed on the side wall of the first slide rail; the wire is used to connect to the display device, and a portion of the wire is gathered on the first side of the housing; The second end of the second strap has a second slide, the second slide has an opening groove opposite to the wire, and the extending direction of the opening groove is consistent with the extending direction of the second slide. The second rack is disposed on the side wall of the opening slot. When the drive gear rotates and the second end of the second strap meets the wire on the first side of the housing, the wire is located in the opening slot.

2. The head-mounted virtual reality device according to claim 1, characterized in that, The drive gear is centrally located within the housing; The second end of the first strap is located on the second side of the drive gear, and the second end of the second strap is located on the first side of the drive gear, with a variable overlap area between the second ends of both.

3. The head-mounted virtual reality device according to claim 2, characterized in that, The housing is provided with a first limiting structure and a second limiting structure; The first strap is provided with a first limiting part, and the first strap is configured such that when the first limiting part abuts against the first limiting structure, the first strap is located at its longest position. The second strap is provided with a second limiting part, and the second strap is configured such that when the second limiting part abuts against the second limiting structure, the second strap is located at its longest position.

4. The head-mounted virtual reality device according to claim 3, characterized in that, The first limiting structure is a limiting baffle disposed within the housing; Along the extending direction of the first slide, the limiting baffle is disposed within the first slide and located on the second side of the drive gear, and is spaced apart from the drive gear.

5. The head-mounted virtual reality device according to claim 3, characterized in that, The second end of the first strap has a through hole along its length to form the first slide rail; The portion between the first slide and the second end of the first strap forms a first limiting portion, and the first limiting portion is located on the second side of the drive gear.

6. The head-mounted virtual reality device according to claim 5, characterized in that, The through hole is a rectangular hole; The through hole includes a first sidewall, a second sidewall, a third sidewall, and a fourth sidewall, wherein the first sidewall and the second sidewall are arranged opposite each other along the length direction of the first strap, and the wire may be located between the first sidewall and the second sidewall; The first rack is located on the first sidewall or the second sidewall, the third sidewall is disposed opposite to the fourth sidewall and connected between the first sidewall and the second sidewall, wherein the fourth sidewall is located on the second side of the drive gear and forms the first limiting part.

7. The head-mounted virtual reality device according to claim 3, characterized in that, The second strap includes two strips forming the opening slot; The two strips are arranged opposite to each other and parallel to each other, the conductor can be located between the two strips, and the second rack is located on one of the strips; each strip is provided with a limit post to form the second limit part.

8. The head-mounted virtual reality device according to claim 7, characterized in that, The housing is provided with a limiting lug to form the second limiting structure; The limiting ear is located on the moving path of the second strap, and the limiting ear is provided with a limiting groove that cooperates with the limiting post.

9. The head-mounted virtual reality device according to claim 8, characterized in that, The housing is also provided with guide surfaces that are respectively opposite to each of the strips; One end of the limiting post is connected to the strip, and the other end of the limiting post extends to the guide surface and slides along the guide surface.

10. The head-mounted virtual reality device according to claim 9, characterized in that, The battery compartment assembly also includes a battery assembly; The housing has a battery compartment, and the limiting ear is disposed on the side wall of the battery compartment; The battery assembly is disposed within the battery compartment and forms an accommodating cavity with the bottom wall of the battery compartment. Both the first limiting structure and the second limiting structure are disposed within the accommodating cavity.

11. The head-mounted virtual reality device according to claim 10, characterized in that, The battery assembly includes a main board and two guide ribs arranged opposite each other; One side of the guide rib plate is connected to the main board, and the other side extends toward the bottom wall of the battery compartment. One side of the guide rib plate forms the guide surface, and the guide surface is in contact with the limiting post. The guide rib plate is provided with a through hole that mates with the limiting ear, and part of the limiting ear passes through the through hole and abuts against the limiting post.

12. The head-mounted virtual reality device according to claim 10, characterized in that, The battery compartment assembly also includes a battery cover and a knob; The battery cover is placed on the housing and seals the battery compartment; The knob is rotatably connected to the battery cover, and one end of the drive gear passes through the battery assembly and is connected to the knob.

13. The head-mounted virtual reality device according to claim 10, characterized in that, The shell has a first opening and a second opening on its two sides, respectively. The second end of the first strap and the second end of the second strap extend into the receiving cavity through the first opening and the second opening, respectively, and are connected to a portion of the drive gear located in the receiving cavity.

14. The head-mounted virtual reality device according to claim 12, characterized in that, Some of the wires are integrated within the first strap, while some of the wires are exposed outside the first strap; The first end of the wire is connected to the display device, the second end of the wire is coiled and arranged in the accommodating cavity, and the second end of the wire is connected to the side of the battery assembly near the battery cover.

15. The head-mounted virtual reality device according to any one of claims 1 to 14, characterized in that, The second strap is positioned above the first strap and slides relative to the first strap.

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