Head-mounted device and headrest assembly for head-mounted device

Abstract

The present application discloses a head-mounted device and a headrest assembly for the head-mounted device, belonging to the field of intelligent device technology. In the headrest assembly, the main shell is used to contact the user's head; the extension shell is connected to the main shell and extends to a side away from the main shell; the flexible bracket is provided on the extension shell; the functional parts are provided on the flexible bracket, and the functional parts include electrodes, which are used to contact the user to output pulse current. The present application sets functional parts on the headrest assembly to assist the head-mounted device in providing the needs of the user, and can output pulse signals through the electrodes to enhance the user's tactile experience and massage experience when using the device. Among them, the flexible bracket can facilitate the maintenance of the functional parts in contact with the user.

Description

Technical Field

[0001] The present application belongs to the technical field of smart devices, and in particular relates to a head-mounted device and a headrest assembly for the head-mounted device. Background Art

[0002] Virtual Reality (VR) technology is a computer simulation system that allows users to create and experience a virtual world. Existing VR devices block users' visual and auditory senses, creating a sense of being in a virtual environment. This creates an immersive experience for the wearer. However, VR devices, which create a virtual environment solely through vision and hearing, are unable to meet user needs. Summary of the Invention

[0003] In one aspect, the present application provides a headrest assembly for a head-mounted device, comprising:

[0004] a main housing, configured to contact the user's head;

[0005] An extension shell is connected to the main shell and extends to a side away from the main shell;

[0006] a flexible bracket, disposed on the extension housing; and

[0007] The functional component is arranged on the flexible bracket, and the functional component includes an electrode. The electrode is used to contact the user to output a pulse current.

[0008] On one hand, the present application provides a head-mounted device, comprising:

[0009] a headrest assembly, configured to contact the user's head, with a functional component disposed below the headrest assembly, the functional component configured to contact the user; and

[0010] The first strap and the second strap are arranged opposite to each other. Each of the first strap and the second strap includes a bracket, a flexible part and a cross-linking part connected together in sequence. In the first strap and the second strap, the two cross-linking parts are cross-linked with each other in the headrest assembly.

[0011] On one hand, the present application provides a head-mounted device, comprising:

[0012] Host housing;

[0013] A headrest assembly is arranged opposite to the main body housing, and the headrest assembly includes:

[0014] main housing;

[0015] An extension shell is connected to the main shell and extends downward from the main shell;

[0016] a flexible bracket, disposed on a side of the extension housing close to the main housing; and

[0017] A functional component is provided on a side of the flexible bracket close to the host housing;

[0018] A first tether and a second tether are arranged opposite to each other, each of the first tether and the second tether respectively connecting the main body shell and the headrest assembly; and

[0019] The tension adjustment component is arranged on the main shell and is connected to the first lace and the second lace to adjust the length of the cross-linking between the first lace and the second lace.

[0020] The technical solution described in this application has the following beneficial effects: The application provides functional components on the headrest assembly to assist the head-mounted device in meeting user needs, and can output pulse signals through electrodes to enhance the user's tactile and massage experience during use. The flexible bracket facilitates maintaining contact between the functional components and the user. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic structural diagram of a head-mounted device in some embodiments of the present application;

[0022] Figure 2 for Figure 1 A schematic structural diagram of the head-mounted device shown in another perspective;

[0023] Figure 3 for Figure 2 The structure diagram of the wearing assembly shown in some embodiments;

[0024] Figure 4 for Figure 3 A schematic structural diagram of a partially disassembled wearing assembly in the illustrated embodiment;

[0025] Figure 5 for Figure 1 A schematic diagram of the structure of the lacing assembly in some embodiments of the embodiment shown;

[0026] Figure 6 for Figure 5 An exploded view of the bracket and the flexible member in the illustrated embodiment;

[0027] Figure 7 for Figure 6 A schematic structural diagram of the bracket in the embodiment shown;

[0028] Figure 8 for Figure 6 An exploded view of the bracket in the illustrated embodiment;

[0029] Figure 9 for Figure 6 An exploded schematic diagram of a flexible member in one embodiment of the embodiment shown;

[0030] Figure 10 for Figure 6 A schematic diagram of the structure of the flexible member in the illustrated embodiment in other embodiments;

[0031] Figure 11 for Figure 10 An exploded schematic diagram of a flexible member in one embodiment of the embodiment shown;

[0032] Figure 12 for Figure 10 A cross-sectional view of the flexible member along line XII-XII in the illustrated embodiment;

[0033] Figure 13 for Figure 10 A cross-sectional view of the flexible member of the illustrated embodiment along line XII-XII when mated with the circuit trace 102 in other embodiments;

[0034] Figure 14 for Figure 5 A schematic diagram of the structure of the flexible member and the cross-linking member when they cooperate in some embodiments;

[0035] Figure 15 for Figure 14 A schematic cross-sectional view of the flexible member and the cross-linking member when they are mated in some embodiments;

[0036] Figure 16 for Figure 1 The structure diagram of the wearing assembly and the bracket, and the bracket in some embodiments;

[0037] Figure 17 for Figure 1 Schematic diagram of the structure of the middle headrest assembly and the force-bearing assembly;

[0038] Figure 18 for Figure 17 A schematic diagram of the structure of the middle headrest assembly and the force-bearing assembly when they are in cooperation from another perspective;

[0039] Figure 19 for Figure 17 Schematic diagram of at least a portion of the structure of a headrest assembly in some embodiments;

[0040] Figure 20 for Figure 19 A schematic structural diagram of at least a portion of a headrest assembly in another embodiment shown in FIG;

[0041] Figure 21 for Figure 1 Schematic diagram of the structure of the first tether, the second tether and the headrest assembly in some embodiments;

[0042] Figure 22 for Figure 21 A schematic structural diagram of the cooperation between the first tether and the first assembly rack in the illustrated embodiment;

[0043] Figure 23 for Figure 21 A cross-sectional view taken along line XXIII-XXIII of the illustrated embodiment when the first tether is engaged with the first assembly jig;

[0044] Figure 24 for Figure 18 A schematic diagram of the structure of the functional components shown;

[0045] Figure 25 for Figure 24 A schematic diagram of the structure of the functional components in the illustrated embodiment when cooperating with the processor 103 in other embodiments;

[0046] Figure 26 for Figure 17 A schematic diagram of the structure of the tension adjustment assembly and the main housing in some embodiments shown in the embodiment;

[0047] Figure 27 for Figure 26 An exploded view of a tension adjustment assembly in some embodiments is shown;

[0048] Figure 28 for Figure 27 An exploded view of the tension adjustment assembly shown in another perspective;

[0049] Figure 29 for Figure 28 An exploded schematic diagram of a portion of the structure of the ratchet and pawl mechanism in some embodiments shown in the embodiment;

[0050] Figure 30 for Figure 28 A schematic diagram of the structure of the ratchet and pawl mechanism in some embodiments cooperating with the main housing;

[0051] Figure 31 This is a schematic diagram of the rack, the rack, and the tension adjustment component in cooperation with each other in one embodiment of the present application;

[0052] Figure 32 for Figure 31 A cross-sectional view taken along line XXXII-XXXII of the rack, rack, and tension adjustment assembly shown when the rack and rack are in cooperation;

[0053] Figure 33 This is a schematic structural diagram of the tension adjustment assembly and the main housing in other embodiments of the present application;

[0054] Figure 34 for Figure 33A schematic structural diagram of the embodiment shown, showing the tension adjustment assembly and the main housing in cooperation with each other from another perspective;

[0055] Figure 35 for Figure 34 An exploded view of a tension adjustment assembly in some embodiments is shown;

[0056] Figure 36 for Figure 35 An exploded view of the tension adjustment assembly shown in another perspective;

[0057] Figure 37 for Figure 36 A schematic structural diagram of the ratchet and pawl mechanism in another embodiment of the embodiment shown;

[0058] Figure 38 for Figure 37 A schematic structural diagram of the ratchet and pawl mechanism in the illustrated embodiment from another perspective;

[0059] Figure 39 for Figure 35 A schematic diagram of a portion of the structure of the tension adjustment assembly in the illustrated embodiment. DETAILED DESCRIPTION

[0060] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0061] References to "embodiments" herein mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0062] This application describes a head-mounted device. This head-mounted device can be an augmented reality or virtual reality device, such as augmented reality (AR) or virtual reality glasses. Of course, this head-mounted device can also be other devices that need to be worn on the head, such as glasses, or devices that have other functions such as lighting and can be worn on the head, which will not be described in detail. The following detailed description uses AR or virtual reality glasses as an example.

[0063] In the example of augmented reality or virtual reality glasses, a head-mounted device can be configured to transmit data to and receive data from an external processing device via a signal connection, which can be a wired connection, a wireless connection, or a combination thereof. However, in other scenarios, the head-mounted device can be used as a standalone device, i.e., data processing is performed within the head-mounted device itself. The signal connection can be configured to carry any type of data, such as image data (e.g., still images and / or full-motion video, including 2D and 3D images), audio, multimedia, voice, and / or any other type of data. The external processing device can be, for example, a game console, a personal computer, a tablet computer, a smartphone, or other type of processing device. The signal connection can be, for example, a Universal Serial Bus (USB) connection, a Wi-Fi connection, a Bluetooth or Bluetooth Low Energy (BLE) connection, an Ethernet connection, a cable connection, a DSL connection, a cellular connection (e.g., 3G, LTE / 4G, or 5G), or a combination thereof. Additionally, the external processing device may communicate with one or more other external processing devices via a network, which may be or include, for example, a local area network (LAN), a wide area network (WAN), an intranet, a metropolitan area network (MAN), the global Internet, or a combination thereof.

[0064] The head mounted device may include a display assembly, optical components, sensors, a battery, and a processor 103 (see Figure 25 ) and so on. In the example of augmented reality or virtual reality glasses, the display component is designed to implement the functions of virtual reality glasses, for example, by projecting light into the user's eyes, for example, by overlaying images on the user's view of their real-world environment to implement the functions of augmented reality glasses. The head-mounted device may also include an ambient light sensor, and may also include control circuitry to control at least some of the above components and perform associated data processing functions. The control circuitry may include, for example, one or more processors 103, one or more memories, and circuit traces 102 (see FIG. 102 ) that implement electrical connections between the internal electronic components of the head-mounted device. Figure 13 ).

[0065] See also Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the structure of a head-mounted device in some embodiments of the present application. Figure 2 for Figure 1 The head-mounted device 100 may include a wearing assembly 10, a first strap 20 and a second strap 30 connected to the wearing assembly 10, a headrest assembly 40 disposed opposite the wearing assembly 10, a tension adjustment assembly 50 mounted on the headrest assembly 40 and connected to the first strap 20 and the second strap 30, and a force-bearing assembly 60 disposed on the wearing assembly 10 and the headrest assembly 40.

[0066] The first strap 20 and the second strap 30 are disposed opposite each other. The wearing assembly 10, the first strap 20, the second strap 30, and the headrest assembly 40 can form an annular frame for easy wearing by the user. The force-bearing assembly 60 can be disposed on the annular frame to serve as a component of the annular frame that directly contacts the user, thereby making the head-mounted device 100 more comfortable for the user. The first strap 20 and the second strap 30 can form a strap assembly 200. Of course, the strap assembly 200 is not limited to the first strap 20 and the second strap 30 and can also include other structures.

[0067] It should be noted that the terms "first," "second," etc., etc., herein and hereinafter, are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the technical features indicated. Therefore, features specified as "first," "second," etc., etc., may explicitly or implicitly include one or more of the aforementioned features.

[0068] See also Figure 1 and Figure 2 The wearing assembly 10 may include a host shell 11 that is arranged opposite to the headrest assembly 40 and is respectively connected to the first strap 20 and the second strap 30.

[0069] The host shell 11 can be made of at least a hard material. Of course, other materials can also be added or directly used to achieve certain special functions of the host shell 11, such as tactile effects, visual effects, light effects (such as light transmission, refraction, display), etc.

[0070] The host housing 11 includes a housing 101 to accommodate the host, battery, and other components. It is understood that the host may include the display assembly, optical components, sensors, and processor 103 described above. Of course, the host may also include at least the control circuit described above. Furthermore, the host and battery may also be part of the wearable component 10. Of course, the wearable component 10 is not limited to the host housing 11, the host, and the battery, and may also include other components.

[0071] The host housing 11 can be worn in front of the user's eyes to realize the display function of the display component, realize augmented reality or virtual reality function in front of the user's eyes, and of course can also realize other functions of the head-mounted device 100, which are not described in detail. The host housing 11 can contact the user's head, such as the forehead, around the eyes, etc., at least through the force-bearing component 60 to reduce the discomfort caused by direct contact between the host housing 11 and the user's head.

[0072] See also Figure 3 and Figure 4 , Figure 3 for Figure 2 The structure diagram of the wearing assembly 10 in some embodiments is shown. Figure 4 for Figure 3 A schematic diagram of the partially disassembled structure of the wearing assembly 10 in the illustrated embodiment. A decorative piece 12 is provided on the main housing 11 to wrap around the ends of the strap assembly 200, such as the first strap 20 and the second strap 30, thereby shielding the ends of the strap assembly 200, such as the first strap 20 and the second strap 30, and enhancing the appearance of the head-mounted device 100.

[0073] The decorative member 12 is disposed on one side of the main body housing 11 close to the force-bearing component 60 and is located above the main body housing 11 and the force-bearing component 60. Of course, the location of the decorative member 12 can be adjusted according to needs, which will not be described in detail.

[0074] The decorative member 12 is provided with an installation space 1201 to communicate with the accommodating space 101, thereby enabling the routing of the circuit trace 102 from the installation space 1201 to the accommodating space 101. In addition, in some embodiments, the installation space 1201 can accommodate the ends of the tether assembly 200, such as the first tether 20 and the second tether 30.

[0075] The decorative member 12 may be a shell-like structure. It may include a first snap-fit ​​housing 121 and a second snap-fit ​​housing 122 that snap together to form an installation space 1201. The first snap-fit ​​housing 121 and the second snap-fit ​​housing 122 snap together to form an installation space 1201. The ends of the tether assembly 200, such as the first tether 20 and the second tether 30, may be clamped within the installation space 1201.

[0076] In some embodiments, the first snap-fit ​​shell 121 may be located above the second snap-fit ​​shell 122. Of course, the relative position relationship between the first snap-fit ​​shell 121 and the second snap-fit ​​shell 122 may be adjusted according to needs. For example, the first snap-fit ​​shell 121 may also be located on the side of the second snap-fit ​​shell 122 facing the main body shell 11.

[0077] In some embodiments, the first snap-fit ​​housing 121 and / or the second snap-fit ​​housing 122 can be fixedly connected to the strap assembly 200, such as the first strap 20 and the second strap 30, for example, by snap connection, welding, bonding, screw connection, etc., to achieve the relative arrangement of the first strap 20 and the second strap 30, and can achieve the wearing of the host housing 11 by cooperating with the first strap 20 and the second strap 30. Of course, the first snap-fit ​​housing 121 and / or the second snap-fit ​​housing 122 can also be rotatably connected to the strap assembly 200, such as the first strap 20 and the second strap 30.

[0078] In some embodiments, the first snap-fit ​​shell 121 can be connected to the second snap-fit ​​shell 122 to clamp the lacing assembly 200, such as the first lacing 20 and the second lacing 30, to achieve a rotational connection between the first snap-fit ​​shell 121 and the second snap-fit ​​shell 122 and the lacing assembly 200, such as the first lacing 20 and the second lacing 30.

[0079] In some embodiments, the first snap-fit ​​shell 121 and the second snap-fit ​​shell 122 may be an integral structure. In some embodiments, the decorative part 12, such as the first snap-fit ​​shell 121 and the second snap-fit ​​shell 122, may be omitted, and the main body shell 11 may be connected to the lacing assembly 200, such as the first lacing 20 and the second lacing 30, through other structures.

[0080] Please also read Figure 1 、 Figure 2 and Figure 5 , Figure 5 for Figure 1 The illustrated embodiment is a schematic diagram of the structure of the strap assembly 200 in some embodiments. The strap assembly 200 may include a first strap 20 and a second strap 30 arranged in opposition to each other. The first strap 20 and the second strap 30 are both connected to the wearing assembly 10, such as the main body housing 11, and are both connected to the tension adjustment assembly 50. In some embodiments, the structure of the first strap 20 may be the same as that of the second strap 30, but of course, they may also be different. Here, the first strap 20 is introduced in detail. The specific structure and function of the second strap 30 can be set with reference to the structure and function of the first strap 20.

[0081] See also Figure 5 The first strap 20 may include a bracket 21 connected to the wearing component 10, such as the host shell 11, a flexible member 22 connected to the bracket 21 and extending toward one side of the headrest component 40, and a cross-linking member 23 connected to the flexible member 22 and extending into the headrest component 40.

[0082] The bracket 21 cooperates with the wearable assembly 10, such as the main housing 11, to support the wearable assembly 10, such as the main housing 11, so that the wearable assembly 10, such as the main housing 11, can be better positioned in front of the user's eyes. The flexible member 22 is bendable, thereby allowing the first strap 20 to bend and further cooperate with the headrest assembly 40. The cross-linking member 23 can be indirectly connected to the headrest assembly 40 via the tension adjustment assembly 50, enabling the relative positioning of the headrest assembly 40 and the wearable assembly 10, such as the main housing 11, and the wearing of the head-mounted device 100.

[0083] See also Figure 5 and Figure 6 , Figure 6 for Figure 5 An exploded view of the bracket 21 and flexible member 22 in the illustrated embodiment. The bracket 21 may include a bracket body 211 connected to the flexible member 22, and a connecting assembly 212 connected to the bracket body 211 and the wearable component 10, such as the main body housing 11. The bracket body 211 is connected to the wearable component 10, such as the main body housing 11, via the connecting assembly 212.

[0084] See also Figure 7 and Figure 8 , Figure 7 for Figure 6 The structural diagram of the bracket 21 in the embodiment shown is as follows: Figure 8 for Figure 6 An exploded view of the bracket 21 in the illustrated embodiment. The bracket body 211 can be made of a hard material to provide support and shape. The bracket body 211 can be tubular, with either a solid or hollow interior. Of course, the bracket body 211 can also have other shapes, such as a frame structure or a sheet structure.

[0085] The bracket body 211 has two opposite ends, namely a first end 2111 connected to the flexible member 22 and a second end 2112 connected to the connecting assembly 212 .

[0086] The bracket body 211 has a wiring channel 2101 extending in the direction of extension, allowing the circuit trace 102 to be arranged within the wiring channel 2101. The wiring channel 2101 is arranged between a first end 2111 and a second end 2112. In some embodiments, the wiring channel 2101 can be coupled with the flexible member 22 to connect to the bracket body 211. For example, the wiring channel 2101 can allow the flexible member 22 to extend into the wiring channel 2101 and connect to the bracket body 211.

[0087] In some embodiments, the bracket body 211 is provided with a fixing hole 2113 at the first end 2111 , which is in communication with the wiring channel 2101 , so as to cooperate with the flexible member 22 to achieve the connection between the bracket body 211 and the flexible member 22 .

[0088] In some embodiments, a limiting notch 2114 is provided on the edge of the first end 2111 of the bracket body 211 to cooperate with the flexible member 22 to limit the relative position of the bracket body 211 and the flexible member 22 .

[0089] In some embodiments, the second end 2112 of the bracket body 211 can extend into the installation space 1201 of the wearing component 10, such as the decorative component 12, so that the end of the bracket body 211 is placed in the installation space 1201.

[0090] In some embodiments, the bracket body 211 can be bent toward a side close to the second strap 30 at the second end 2112 .

[0091] See also Figure 7The connecting component 212 may include a movable member 2121 connected to the second end 2112 of the support body 211 and a fixed member 2122 rotatably connected to the movable member 2121. The fixed member 2122 is fixed to the wearable component 10, such as the host housing 11, and the movable member 2121 is connected to the support body 211. When the movable member 2121 and the fixed member 2122 rotate relative to each other, the wearable component 10, such as the host housing 11, and the support body 211 can rotate relative to each other.

[0092] The movable part 2121 can be made of a hard material, and of course it can also be made of the same material as the bracket body 211. The movable part 2121 can be a tubular structure, and of course it can also be other structures. The movable part 2121 can be fixed to the bracket body 211 by snapping, bonding, welding, screwing, etc. In some embodiments, the movable part 2121 can be an integral structure with the bracket body 211. That is, in some embodiments, the movable part 2121 can be a part of the bracket body 211. That is, in some embodiments, the movable part 2121 can be omitted, the bracket body 211 is rotatably connected to the fixed part 2122, and the structure on the movable part 2121 that cooperates with the fixed part 2122 can be set at the second end 2112 of the bracket body 211.

[0093] The movable member 2121 can be disposed within the installation space 1201 of the wearing component 10, such as the decorative member 12, to prevent the movable member 2121 from being exposed. Of course, in some embodiments, the movable member 2121 can be partially exposed according to installation requirements, and in some embodiments, the second end 2112 of the bracket body 211 can be not located within the installation space 1201 of the wearing component 10, such as the decorative member 12.

[0094] In some embodiments, the movable member 2121 may have a configuration space 2102, allowing the bracket body 211 to extend into the configuration space 2102, while the movable member 2121 is disposed around the bracket body 211. Alternatively, the movable member 2121 may extend into the wiring channel 2101, while the bracket body 211 is disposed around the movable member 2121. The configuration space 2102 and the wiring channel 2101 are connected, and the configuration space 2102 and the wiring channel 2101 jointly arrange the circuit trace 102, allowing the circuit trace 102 to extend into the installation space 1201 of the decorative member 12 and further into the accommodation space 101 of the host housing 11, thereby connecting to the host, battery, and other structures. It is understood that the circuit trace 102 may also extend directly through the wiring channel 2101 into the installation space 1201 of the decorative member 12, and further into the accommodation space 101 of the host housing 11, without passing through the configuration space 2102.

[0095] In some embodiments, the movable member 2121 is provided with a first limiting structure 2123 to cooperate with the fixed member 2122 to limit the relative rotation angle between the movable member 2121 and the fixed member 2122. In some embodiments, the first limiting structure 2123 can be a sliding groove or a protrusion.

[0096] The fixing member 2122 can be made of a hard material, and of course can also be made of the same material as the movable member 2121, the bracket body 211, etc. The fixing member 2122 can be a tubular structure, and of course can also be other structures.

[0097] The fixing member 2122 can be arranged in the installation space 1201 of the wearing component 10, for example, the decorative member 12, to avoid the fixing member 2122 from being exposed. Of course, in some embodiments, according to the needs of installation, part of the fixing member 2122 can be exposed.

[0098] The fixing member 2122 can be fixed to the decorative member 12, such as the first snap-fit ​​housing 121 and / or the second snap-fit ​​housing 122. In some embodiments, the fixing member 2122 can be integrally formed with the decorative member 12, such as the first snap-fit ​​housing 121 and the second snap-fit ​​housing 122. In some embodiments, the fixing member 2122 can be fixed to other structures of the host housing 11, rather than to the decorative member 12, such as the first snap-fit ​​housing 121 and the second snap-fit ​​housing 122.

[0099] The fixed member 2122 can be mounted on the movable member 2121, or it can extend into the configuration space 2102 to achieve a rotational connection between the fixed member 2122 and the fixed member 2122. In some embodiments, the fixed member 2122 is provided with a second limiting structure 2124 that cooperates with the first limiting structure 2123 to limit the relative rotation angle between the movable member 2121 and the fixed member 2122. In some embodiments, the second limiting structure 2124 can be a protrusion that is positioned within and slidably engages with a chute, or a chute that accommodates a protrusion and slidably engages with the protrusion.

[0100] In some embodiments, the connecting component 212 and a portion of the bracket body 211 can be placed in the accommodating space 101 of the wearing component 10, such as the host shell 11.

[0101] See also Figure 6 and Figure 9 , Figure 9 for Figure 6 An exploded view of a flexible member 22 in one embodiment is shown. The flexible member 22 may include a flexible body 221 connected to the cross-linking member 23, and a plug assembly 222 connected to the flexible body 221 and plugged into the support 21, such as the support body 211. The flexible body 221 is removably connected to the support 21, such as the support body 211, via the plug assembly 222.

[0102] The flexible body 221 has a bendable property and can be made of a flexible material such as resin, plastic, fiber, etc. The flexible body 221 can be a tubular structure with a solid or hollow interior. Of course, the flexible body 221 can also have other shapes such as a frame structure, a sheet structure, etc.

[0103] The flexible body 221 has two opposite ends in the extension direction, namely a third end 2211 connected to the plug assembly 222 and a fourth end 2212 connected to the cross-linking member 23. The flexible body 221 has a wiring channel 2201 extending in the extension direction, so that the circuit wiring 102 can be arranged in the wiring channel 2201. The wiring channel 2201 is arranged between the third end 2211 and the fourth end 2212. In some embodiments, the wiring channel 2201 can cooperate with the flexible body 221 to connect with the plug assembly 222. For example, the wiring channel 2201 can allow the plug assembly 222 to extend into the wiring channel 2201 and connect with the flexible body 221. In some embodiments, the wiring channel 2201 can be provided only in a portion of the flexible body 221, for example, only at the end portions such as the third end 2211 and the fourth end 2212.

[0104] The flexible body 221 is provided with a first plug hole 2213 at the third end 2211 to cooperate with the plug assembly 222 to achieve the connection between the flexible body 221 and the plug assembly 222 .

[0105] The plug assembly 222 may include a plug member 223 connected to the flexible body 221 , for example, the third end 2211 , and used to be connected to the bracket body 211 , for example, the first end 2111 .

[0106] The plug connector 223 may include a plug body 2231 connected to the flexible body 221 , such as the third end 2211 , and a buckle portion 2232 provided on the plug body 2231 and used to connect to the bracket body 211 , such as the first end 2111 .

[0107] The plug body 2231 can be fixed to the flexible body 221, such as the third end 2211, by plugging, welding, snapping, screwing, etc. Of course, in some embodiments, the plug body 2231 can be an integral structure with the flexible body 221.

[0108] The plug-in body 2231 can be made of a hard material, and of course can also be made of the same material as the movable member 2121, the bracket body 211, etc. The plug-in body 2231 can be a tubular structure, and of course can also be other structures.

[0109] The plug body 2231 can extend into the flexible body 221, such as the wiring channel 2201, and connect with the flexible body 221. In some embodiments, the plug body 2231 can be provided with a clearance space 2202, so that the flexible body 221 can extend into the plug body 2231, such as the clearance space 2202, and connect with the plug body 2231, and facilitate the mutual communication between the clearance space 2202, the wiring channel 2201, and the wiring channel 2101, so as to arrange the circuit wiring 102.

[0110] In some embodiments, the plug body 2231 is provided with a second insertion hole 2234 that communicates with the clearance space 2202. When the flexible body 221 is inserted into the plug body 2231, such as into the clearance space 2202, the second insertion hole 2234 cooperates with the first insertion hole 2213 to connect the plug body 2231 with the flexible body 221. For example, when the flexible body 221 is inserted into the plug body 2231, such as into the clearance space 2202, the second insertion hole 2234 communicates with the first insertion hole 2213, facilitating insertion of the insertion post 2233 into the second insertion hole 2234 and the first insertion hole 2213, thereby connecting the plug body 2231 with the flexible body 221. It is understood that the insertion post 2233 may also be part of the plug assembly 222. In some embodiments, the insertion post 2233 may be a latch.

[0111] The buckle portion 2232 can be made of a hard material, or can be made of the same material as the plug body 2231. The buckle portion 2232 can extend from the plug body 2231 to a side away from the flexible body 221, such as the third end 2211.

[0112] There can be multiple locking portions 2232 , which are arranged around the clearance space 2202 .

[0113] The latch portion 2232 can extend from the first end 2111 of the bracket body 211 into the bracket body 211, for example, within the wiring channel 2101, and be plugged and locked with the bracket body 211, thereby connecting the clearance space 2202 with the wiring channel 2101 and arranging the circuit traces 102. Alternatively, the plug body 2231 can at least partially extend into the bracket body 211, for example, within the wiring channel 2101. Of course, in certain embodiments, the first end 2111 of the bracket body 211 can also extend into the clearance space 2202 between the latch portions 2232, and be plugged and locked with the latch portions 2232. Alternatively, the first end 2111 of the bracket body 211 can extend into the plug body 2231, for example, within the clearance space 2202.

[0114] In some embodiments, the snap portion 2232 is provided with a fixing protrusion 2235 to cooperate with the flexible body 221, such as the fixing hole 2113. For example, when the snap portion 2232 is plugged and fixed to the bracket body 211, the fixing protrusion 2235 is located in the fixing hole 2113. It is understandable that when the snap portion 2232 is plugged and fixed to the bracket body 211, the snap portion 2232 can be elastically deformed under force so that the fixing protrusion 2235 is placed in the fixing hole 2113 and is fixed in the fixing hole 2113 under the force of restoring the original shape generated by the elastic deformation of the snap portion 2232.

[0115] In some embodiments, a limiting protrusion 2236 is provided on the buckle portion 2232 to cooperate with the flexible body 221, such as the limiting notch 2114. For example, the limiting protrusion 2236 can be placed in the limiting notch 2114 to cooperate with the insertion and fixing of the buckle portion 2232 and the flexible body 221.

[0116] In some embodiments, the limiting protrusion 2236 can be set at the location where the buckle portion 2232 is connected to the bracket body 211.

[0117] See also Figure 10 、 Figure 11 and Figure 12 , Figure 10 for Figure 6 The schematic diagram of the structure of the flexible member 22 in other embodiments in the embodiment shown is as follows: Figure 11 for Figure 10 The flexible member 22 in the embodiment shown is an exploded schematic diagram in one embodiment, Figure 12 for Figure 10 The flexible member 22 is shown in a cross-sectional view along line XII-XII in the embodiment shown. The plug assembly 222 may further include a clamping member 224 disposed in the plug body 2231 , such as in the clearance space 2202 , and a stopper 225 engaged with the clamping member 224 .

[0118] The clamping member 224 and the limiting member 225 cooperate to clamp the flexible body 221. The clamping member 224 is used to connect with the plug body 2231, so that the flexible body 221 is connected to the plug body 2231 through the clamping member 224 and the limiting member 225.

[0119] The structure of the fastening member 224 can be similar to that of the combination of the plug-in body 2231 and the buckle portion 2232. The fastening member 224 can be made of a hard material, or the same material as the plug-in body 2231 and the buckle portion 2232.

[0120] The clamping member 224 may be a tubular structure, with an assembly space 2203 provided therein to accommodate the limiting member 225 and the flexible body 221 , such as the third end 2211 .

[0121] The assembly space 2203 of the clamping member 224 can accommodate the flexible body 221 , for example, the third end 2211 , so that the clamping member 224 is sleeved on the third end 2211 of the flexible body 221 .

[0122] The clamping member 224 may have elastic deformation properties. For example, the clamping member 224 may extend into the insertion body 2231, such as within the clearance space 2202, and be squeezed by the insertion body 2231, causing elastic deformation. This compresses the flexible body 221 within the assembly space 2203, causing the flexible body 221 to elastically deform. In some embodiments, the clamping member 224 elastically deforms to squeeze the flexible body 221 between the clamping member 224 and the stopper 225, thereby securing the flexible body 221.

[0123] The clamping member 224 can extend into the plug-in body 2231 , for example, into the clearance space 2202 , so that the assembly space 2203 is connected to the clearance space 2202 , and the circuit traces 102 are arranged.

[0124] The fastening member 224 may include a fastening body 2241 that can be disposed around the stopper 225 and an elastic portion 2242 that extends to one side from the fastening body 2241. There may be at least one elastic portion 2242. The elastic portion 2242 and the fastening body 2241 can cooperate to form an assembly space 2203.

[0125] The elastic portion 2242 can elastically deform when the fastening member 224 extends into the plug body 2231, such as the clearance space 2202. In some embodiments, the elastic portion 2242 can cooperate with the plug body 2231, such as the second insertion hole 2234. For example, the elastic portion 2242 is provided with a securing portion 2243. When the fastening member 224 extends into the plug body 2231, such as the clearance space 2202, the elastic portion 2242 is positioned within the plug body 2231, such as the second insertion hole 2234, thereby securing the elastic portion 2242 and preventing it from falling off the plug body 2231. In some embodiments, the elastic portion 2242 is provided with two symmetrical securing portions 2243, and there are also two second insertion holes 2234, with each securing portion 2243 positioned within one of the second insertion holes 2234. In some embodiments, the edge of the second plug hole 2234 is inclined, specifically, it can be arranged at an angle with respect to the plugging direction of the clamping member 224 and the plug body 2231. This allows the clamping portion 2243 to be inserted into the second plug hole 2234, and the elastic portion 2242 to be forced to move away from the plug body 2231, so that the clamping portion 2243 slides within the second plug hole 2234. The clamping portion 2243, when restricted by the second plug hole 2234, drives the elastic portion 2242 to undergo elastic deformation, thereby better securing the flexible body 221.

[0126] The stopper 225 and the fastening member 224 cooperate to secure the flexible body 221. The stopper 225 can be made of a rigid material, or it can be made of the same material as the plug body 2231, the buckle portion 2232, the fastening member 224, and so on. The stopper 225 can be a tubular structure with a connecting channel 2204 disposed therein, thereby connecting with the plug body 2231, such as the clearance space 2202, the fastening member 224, such as the assembly space 2203, and the flexible body 221, such as the wiring channel 2201, to facilitate the arrangement of the circuit wiring 102. Of course, the fastening member 224 can also have other structures.

[0127] The stopper 225 can be placed in the flexible body 221, such as the wiring channel 2201, so that the flexible body 221 contacts the stopper 225 under the pressure of the fastening member 224, such as the elastic portion 2242, thereby securing the flexible body 221. In some embodiments, the stopper 225 is placed in the flexible body 221, such as the wiring channel 2201, and can contact the inner wall of the flexible body 221.

[0128] In some embodiments, see Figure 13 , Figure 13 for Figure 10 The flexible member 22 of the illustrated embodiment is shown in a cross-sectional view taken along line XII-XII when cooperating with the circuit trace 102 in other embodiments. The circuit trace 102 is arranged within the flexible body 221, such as the trace channel 2201, the retaining member 224, and the plug-in body 2231, such as the clearance space 2202. The arrangement of the circuit trace 102 allows the flexible body 221 to be secured between the circuit trace 102 and the retaining member 224. In other words, the circuit trace 102 functions as a stopper 225. It is understood that in some embodiments, the circuit trace 102 may be referred to as a "stopper." In some embodiments, the circuit trace 102 may serve as part of the stopper 225. Of course, the stopper 225 is not limited to the circuit trace 102.

[0129] See also Figure 5 The cross-linking member 23 can be connected to the flexible member 22, such as the fourth end 2212. The cross-linking member 23 can be made of at least a hard material. Of course, other materials can also be added or directly used to achieve certain special functions such as flexibility, tactile effects, visual effects, and lighting effects. Of course, it can also be made of a material with bendable properties.

[0130] The cross-linking member 23 may be a shell-like structure, or may be a plate-like structure, a sheet-like structure, or a tubular structure.

[0131] In some embodiments, the cross-linking member 23 may include a rack 231 connected to the tension adjustment assembly 50 and a mounting portion 232 connected to the rack 231 and configured to be connected to the fourth end 2212 of the flexible body 221 .

[0132] The rack 231 may be a sheet-like structure with a bendable property. One end of the rack 231 in the extension direction may be connected to the assembly portion 232, for example, by welding, clamping, screwing, plugging, etc.

[0133] The edge of the rack 231 in the extension direction is provided with serrations 2311 to cooperate with the tension adjustment assembly 50 .

[0134] The rack 231 is provided with a limiting rib 2312 on one side surface to cooperate with the tension adjustment component 50. In some embodiments, the limiting rib 2312 can be provided in the extending direction of the rack 231.

[0135] The rack 231 is provided with a limiting rib 2313 at the end away from the mounting portion 232 to cooperate with the tension adjustment assembly 50 and prevent the rack 231 from slipping off the tension adjustment assembly 50. In some embodiments, the limiting rib 2313 can be provided at the edge of the end away from the mounting portion 232 and can extend in the direction of the edge. In some embodiments, the limiting rib 2313 can be connected to the limiting rib 2312. In some embodiments, the limiting rib 2313 and the limiting rib 2312 can be located on the same side of the rack 231.

[0136] The assembly portion 232 can be made of a hard material, and of course can also be made of the same material as the movable member 2121, the bracket body 211, the rack 231, etc. The assembly portion 232 can be a tubular structure, and of course can also be other structures.

[0137] The assembly portion 232 can be connected to the rack 231. In some embodiments, the assembly portion 232 and the rack 231 can be an integral structure.

[0138] The assembly portion 232 can be secured to the flexible member 22, such as the fourth end 2212, by plugging, welding, snapping, or screwing. Of course, in some embodiments, the plug body 2231 can be integrally formed with the flexible member 22, such as the flexible body 221. In some embodiments, the assembly portion 232 can be omitted, and the rack 231 can be secured to the flexible member 22, such as the flexible body 221, by plugging, welding, snapping, or screwing.

[0139] In some embodiments, the assembly portion 232 can extend into the flexible body 221, such as the wiring channel 2201, and connect to the flexible body 221. In some embodiments, the assembly portion 232 can be sleeved on an end of the flexible body 221. In some embodiments, the assembly portion 232 is connected to the flexible body 221 and can connect the wiring channel 2201 to the outside world.

[0140] In some embodiments, the connection between the assembly portion 232 and the flexible member 22 can be similar to the connection between the flexible member 22 and the bracket 21. Specifically, in some embodiments, the assembly portion 232 is provided with a snap-in hole and a retaining notch, similar to the bracket 21. The specific configuration can be similar to that of the bracket 21 and will not be described in detail here. The fourth end 2212 of the flexible member 22, like the third end 2211, is connected to a plug-in assembly to connect to the assembly portion 232 via the plug-in assembly. The specific configuration can be similar to that of the third end 2211 of the flexible member 22 and will not be described here in detail here.

[0141] See also Figure 14 and Figure 15 , Figure 14 for Figure 5 The schematic diagram of the structure of the flexible member 22 and the cross-linking member 23 in some embodiments is shown. Figure 15 for Figure 14 The cross-sectional view of the flexible member 22 and the cross-linking member 23 in some embodiments is shown. The assembly portion 232 may include a first clamping member 2321 connected to the rack 231 and a second clamping member 2322 that engages with the first clamping member 2321 to clamp the flexible member 22 .

[0142] The first clamping member 2321 may include a clamping body 2323 that cooperates with the second clamping member 2322 to clamp the flexible member 22 , and an abutting plate 2324 that connects the rack 231 and the clamping body 2323 .

[0143] The clamping body 2323 can be connected to the second clamping member 2322 via a screw connection, a snap connection, or other means. The abutment plate 2324 can be bent from the clamping body 2323 toward one side of the second clamping member 2322 and can be connected to the rack 231. In some embodiments, the abutment plate 2324 can abut against the fourth end 2212 of the flexible member 22. In some embodiments, a wiring hole 2325 can be provided on the abutment plate 2324 to communicate with the wiring channel 2201 of the flexible member 22, thereby allowing the circuit wiring 102 to pass through.

[0144] The second clamping member 2322 has a securing protrusion 2326 on its surface facing the first clamping member 2321, such as the clamping body 2323, to increase friction between the second clamping member 2322 and the flexible member 22, thereby securing the connection between the second clamping member 2322 and the flexible member 22. In some embodiments, the securing protrusion 2326 is a pyramid or a cone. In some embodiments, the securing protrusion 2326 is a pyramid or a cone. In some embodiments, a securing groove 2214 is provided on the surface of the flexible member 22, such as the flexible body 221, to accommodate the securing protrusion 2326. When the first clamping member 2321, such as the clamping body 2323, and the second clamping member 2322 clamp the flexible member 22, the securing protrusion 2326 is located within the securing groove 2214, securing the flexible member 22.

[0145] Please refer again Figure 5 The second tether 30 can be arranged opposite the first tether 20. Its specific structure is similar to that of the first tether 20. For example, it can also include a bracket 31 connected to the wearing component 10, such as the main body housing 11, a flexible member 32 connected to the bracket 31 and extending toward one side of the headrest component 40, and a cross-linking member 33 connected to the flexible member 32 and extending into the headrest component 40. Therefore, the coordination relationship between the bracket 31, flexible member 32, and cross-linking member 33 in the second tether 30 can be referred to the description of the structure of the first tether 20 and will not be repeated here.

[0146] In some embodiments, the second tether 30 and the first tether 20 may be symmetrically arranged. The differences between the second tether 30 and the first tether 20 may be described below.

[0147] The rack 331 on the second strap 30 can be positioned opposite the serrations 231 on the first strap 20. For example, the serrations 3311 on the rack 331 are positioned on the side facing the first strap 20. For example, the serrations 2311 on the rack 231 are positioned on the side facing the second strap 30. For example, the limiting ribs 3312 and the position-limiting ribs 3313 on the rack 331 are positioned on the same side as the limiting ribs 2312 and the position-limiting ribs 2313 on the rack 231.

[0148] The rack 331 on the second strap 30 can be cross-linked with the rack 231 on the first strap 20 through the tension adjustment component 50. It can be understood that the length of the cross-link between the first strap 20 and the second strap 30 can be adjusted to achieve tightness adjustment of the head mounted device 100.

[0149] See also Figure 16 , Figure 16 for Figure 1Schematic diagram of the structure of the wearing component 10 shown in some embodiments of the cooperation with the bracket 21 and the bracket 31. The connecting component 212 in the bracket 21 can be extended into the installation space 1201, and is fixedly connected to the first snap-fit ​​shell 121 and / or other structures of the host shell 11. The second snap-fit ​​shell 122 is snap-fitted with the first snap-fit ​​shell 121 to clamp the bracket 21 and the bracket 31, so that the decorative part 12 can rotate relative to the bracket 21 and the bracket 31. Therefore, in some embodiments, the decorative part 12 can be rotatably connected to the bracket 21 and the bracket 31. For example, the first snap-fit ​​shell 121 is snap-fitted with the second snap-fit ​​shell 122 to clamp the bracket 21 and the bracket 31, so that the decorative part 12 can be rotatably connected to the bracket 21 and the bracket 31.

[0150] It can be understood that in the first tether 20, the flexible member 22 and / or the cross-linking member 23 can form a bendable portion. In the second tether 30, the flexible member 32 and / or the cross-linking member 33 can form a bendable portion.

[0151] See also Figure 1 、 Figure 2 and Figure 17 , Figure 17 for Figure 1 A schematic diagram illustrating the structure of the headrest assembly 40 and the force-bearing assembly 60. The headrest assembly 40 can be used to contact the user's head, or it can be indirectly contacted through the force-bearing assembly 60. The headrest assembly 40 can be a shell-like structure, and its interior can be used to accommodate the intersection of the first and second straps 20 and 30, as well as at least a portion of the tension adjustment assembly 50.

[0152] The headrest assembly 40 may include a main housing 41, and a first assembly bracket 42 and a second assembly bracket 43 disposed opposite and connected to the main housing 41. The main housing 41 is disposed opposite the wearable assembly 10, such as the main housing 11. The first assembly bracket 42 is slidably connected to the first tether 20 and can be slid into or out of the main housing 41 via the first assembly bracket 42. The second assembly bracket 43 is slidably connected to the second tether 30 and can be slid into or out of the main housing 41 via the second assembly bracket 43.

[0153] The main shell 41 can be made of at least a hard material. Of course, other materials can also be added or directly used to achieve certain special functions such as flexibility, tactile effects, visual effects, light effects, etc.

[0154] See also Figure 17 、 Figure 18 、 Figure 19 and Figure 20 , Figure 18 for Figure 17 A schematic structural diagram of the middle headrest assembly 40 and the force-bearing assembly 60 when they are matched from another perspective. Figure 19 for Figure 17 A schematic diagram of at least a portion of the structure of a headrest assembly 40 in some embodiments is shown in FIG. Figure 20 for Figure 19 is a schematic diagram illustrating at least a portion of a headrest assembly 40 in another embodiment. The main housing 41 is a shell-like structure that serves as the outer contour of the headrest assembly 40 and is used to mount the force-bearing assembly 60. The housing 401 within the main housing 41 is used to house electronic components such as batteries and sensors that can be connected to the circuit traces 102. As will be appreciated, the circuit traces 102 can extend into the housing 401.

[0155] The accommodating space 401 of the main shell 41 can also be used to accommodate the portion where the first lace 20 and the second lace 30 are cross-linked and at least a portion of the tightness adjustment component 50.

[0156] The main housing 41 is provided with a ratchet 411 on a side away from the force-bearing component 60. The ratchet 411 can be annular. The inner wall of the ratchet 411 is provided with inner teeth 4111.

[0157] The main housing 41 is provided with a central hole 412 that is in communication with the accommodating space 401 . The central hole 412 is coaxially arranged with the ratchet 411 to cooperate with the tension adjustment assembly 50 .

[0158] The main housing 41 is provided with a support wall 413 around the central hole 412 to cooperate with the tension adjustment assembly 50. In some embodiments, the support wall 413 extends from the edge of the main housing 41 at the central hole 412 to a side away from the force-bearing assembly 60. In some embodiments, the support wall 413 can be omitted.

[0159] The main housing 41 is provided with an adapting groove 414 around the ratchet 411 to make way for the tension adjustment assembly 50 .

[0160] In some embodiments, the main housing 41 is configured to contact the user's head.

[0161] See also Figure 21 、 Figure 22 and Figure 23 , Figure 21 for Figure 1 Schematic diagram of the structure of the first tether 20, the second tether 30 and the headrest assembly 40 in some embodiments, Figure 22 for Figure 21 The schematic diagram of the structure of the first tether 20 and the first assembly frame 42 in the embodiment shown, Figure 23 for Figure 21The illustrated embodiment shows a cross-sectional view taken along line XXIII-XXIII of the first tether 20 and first assembly bracket 42 in engagement. The first assembly bracket 42 can be made of at least a rigid material, but other materials can also be added or used directly to achieve specific functions such as flexibility, tactile effects, visual effects, or lighting effects. The first assembly bracket 42 can also be made of the same material as the main housing 41, bracket 21, and other components.

[0162] The first assembly frame 42 can cooperate with the bracket 21 to achieve a supporting effect. The first assembly frame 42 can be a tubular structure, a frame structure, a sheet structure, etc., or other structures.

[0163] The first assembly bracket 42 can be connected to the main housing 41 by bonding, welding, screwing, clamping, etc. In some embodiments, the first assembly bracket 42 can be an integral structure with the main housing 41.

[0164] The first assembly frame 42 is provided with a sliding through hole 402 in the extension direction thereof, which is in communication with the main shell 41, for example, the accommodation space 401, so as to accommodate the first tether 20, for example, the bracket 21, the flexible member 22, etc., so that the first tether 20, for example, the bracket 21, the flexible member 22, etc., can slide within the sliding through hole 402 and in the extension direction of the sliding through hole 402, thereby allowing the first tether 20 to slide into or out of the accommodation space 401 of the main shell 41. It is understandable that the first assembly frame 42 and the bracket 21 can slide relative to each other, and the bracket 21 can be at least partially located in the first assembly frame 42, for example, the sliding through hole 402, so as to achieve the effect of the first assembly frame 42 and the bracket 21 cooperating to support the wearing assembly 10 and the headrest assembly 40, thereby allowing the first assembly frame 42 to be a part of the first tether 20.

[0165] Please refer again Figure 21 、 Figure 22 and Figure 23 The second assembly frame 43 can be arranged opposite the first assembly frame 42 and its specific structure can be similar to that of the first assembly frame 42. The specific structure of the second assembly frame 43 can refer to the structure of the first assembly frame 42. In addition, the cooperation relationship between the second assembly frame 43 and the second tether 30 can refer to the cooperation relationship between the first assembly frame 42 and the first tether 20, and will not be repeated here.

[0166] See also Figure 18 The headrest component 40 is provided with a functional component 44 on the outer surface to assist the head mounted device 100 so that the user has a better wearing experience.

[0167] The functional component 44 is located below the headrest component 40. When the user wears the head-mounted device 100, the functional component 44 can contact the user's neck, thereby realizing tactile simulation to enhance the user's immersion in the augmented reality or virtual reality environment, improving the user experience. It can also massage the user's neck to relax the user without fatigue. It can also detect information such as respiratory rate, pulse rate, blood pressure or blood oxygen saturation to ensure the user's health.

[0168] The functional component 44 may include a first sub-functional component 441 and a second sub-functional component 442 arranged in parallel. The first sub-functional component 441 and the second sub-functional component 442 come into contact with the user and cooperate with each other.

[0169] See also Figure 18 and Figure 24 , Figure 24 for Figure 18 The first sub-functional component 441 may include an extension housing 4411 connected to the main housing 41 , a flexible bracket 4412 disposed on a side of the extension housing 4411 facing the wearable component 10 , and a functional component 4413 disposed on the flexible bracket 4412 .

[0170] The extension housing 4411 may extend downward from the main housing 41 .

[0171] Flexible bracket 4412 can be made of a rigid material and can be bendable and deformable. One end of flexible bracket 4412 is connected to extension housing 4411 by, for example, bonding, welding, screwing, or snapping. In some embodiments, flexible bracket 4412 may include a deformable portion 4414 disposed on extension housing 4411 and a contact portion 4415 disposed on deformable portion 4414.

[0172] Deformable portion 4414 can be a columnar structure with deformable properties, providing comfort to the user when flexible bracket 4412 contacts the user's neck. Deformable portion 4414 is connected to extension housing 4411 at one end in its extension direction, and to contact portion 4415 at the other end. Of course, deformable portion 4414 is not limited to a columnar structure and can also have other structures.

[0173] The contact portion 4415 is connected to the deformation portion 4414 .

[0174] The contact portion 4415 can be used to contact the user's neck. In some embodiments, the contact portion 4415 can be made of the same material as the deformable portion 4414.

[0175] The contact portion 4415 can be used to carry the functional part 4413. In some embodiments, the contact portion 4415 has a larger contact surface on the side away from the deformation portion 4414 to ensure sufficient contact surface with the user's neck so that the user feels comfortable. In some embodiments, the contact portion 4415 is a sheet-like structure. Of course, other structures are also possible. The functional part 4413 can be arranged on the end surface of the flexible bracket 4412 away from the end of the extension shell 4411 to contact the user's neck. In some embodiments, the functional part 4413 can be arranged at one end of the contact portion 4415 away from the deformation portion 4414. In some embodiments, the functional part 4413 can be arranged on the side of the contact portion 4415 away from the deformation portion 4414. In some embodiments, the contact portion 4415 can contact the user's neck by being attached.

[0176] The functional component 4413 can be arranged through the flexible bracket 4412 and the extension housing 4411 via the circuit trace 102, and then extend into the accommodating space 401 of the main housing 41, thereby being connected to the control circuit and ultimately connected to the processor 103, so that the processor 103 can control the functional component 4413 or receive detection data transmitted by the functional component 4413 or perform data processing. In some embodiments, if the contact portion 4415 can realize the scene of contact between the functional component 4413 and the user, the deformation portion 4414 can be omitted, and the extension housing 4411 can also be omitted, and only the contact portion 4415 can be connected to the main housing 41 via the circuit trace 102.

[0177] In some embodiments, functional component 4413 may include electrodes for contacting the skin of the user's neck to apply a pulsed current to the user's neck through the electrodes. In some scenarios, the pulsed current transmitted by the electrodes can cause muscle contraction or relaxation, allowing the user to experience sensations such as vibration, hammering, knocking, or kneading, simulating the effect of mechanical force on the person and creating a sense of touch. In some scenarios, the pulsed current transmitted by the electrodes can effectively stimulate human muscle movement, tightening the skin, promoting capillary microcirculation, and relieving muscle fatigue, ultimately achieving a massage effect.

[0178] See also Figure 25 , Figure 25 for Figure 24 This is a schematic diagram of the structure of the functional component 4413 in the illustrated embodiment when cooperating with the processor 103 in other embodiments. The functional component 4413 may include a light generator 4416 and a photosensor 4417 connected to the processor 103. The light generator 4416 may be configured to emit light and, under the control of the processor 103, to emit light. When the light generator 4416 contacts the user's neck, the light may illuminate the user's neck. The photosensor 4417 may be configured to receive reflected light after passing through the user's neck.

[0179] Specifically, the skin on the user's neck absorbs and reflects light, so that the reflected light is received by photosensor 4417. Furthermore, photosensor 4417 converts the optical signal into an electrical signal and transmits it to processor 103. Processor 103 can then determine changes in the user's respiratory rate, pulse rate, blood pressure, or blood oxygen saturation based on the reflected light received by photosensor 4417 to ensure the user's health.

[0180] In some scenarios, the user wears the head-mounted device 100, and the functional part 4413 can contact the user's neck at the same time. The processor 103 controls the light generator 4416 to emit light to the user's neck. The light is absorbed by the human blood and tissue at the user's neck and partially reflected. The photoelectric sensor 4417 can receive the reflected light after passing through the user's body. Then, the processor 103 can determine the changes in the respiratory rate, pulse rate, blood pressure or blood oxygen saturation of the subject, such as the user's body, based on the reflected light received by the photoelectric sensor 4417.

[0181] Please refer again Figure 18 and Figure 24 The second sub-functional component 442 can be arranged side by side with the first sub-functional component 441. The specific structure of the second sub-functional component 442 can also be similar to that of the first sub-functional component 441. Specifically, the structural arrangement of the second sub-functional component 442 can refer to the structural arrangement of the first sub-functional component 441. In addition, the matching relationship between the second sub-functional component 442 and the main housing 41 can refer to the description of the matching relationship between the first sub-functional component 441 and the main housing 41, and will not be repeated here.

[0182] In some embodiments, functional component 4413 of first sub-functional component 441 may include an electrode, and functional component 4413 of second sub-functional component 442 may include light generator 4416 and photosensor 4417. In some embodiments, first sub-functional component 441 or second sub-functional component 442 may be omitted.

[0183] See also Figure 17 and Figure 26 , Figure 26 for Figure 17 The illustrated embodiment illustrates the structure of the tension adjustment assembly 50 and the main housing 41 in some embodiments. The tension adjustment assembly 50 is partially disposed within the accommodation space 401 of the main housing 41 and partially located outside of the accommodation space 401. The tension adjustment assembly 50 can be fixed to the main housing 41 and connected to the first and second ties 20, 30, enabling cross-linking and adjustment of the cross-linking length between the first and second ties 20, 30.

[0184] See also Figure 17 、 Figure 26 、 Figure 27 and Figure 28 , Figure 27 for Figure 26 An exploded view of the tension adjustment assembly 50 in some embodiments is shown. Figure 28 for Figure 27 The exploded view of the tension adjustment assembly 50 shown in another perspective. The tension adjustment assembly 50 may include an adjustment mechanism housing 51 installed in the accommodating space 401, a knob mechanism 52 installed on the adjustment mechanism housing 51, and a ratchet pawl mechanism 53 installed on the main housing 41. The adjustment mechanism housing 51 is used to carry the knob mechanism 52 and can position the first strap 20 and the second strap 30. The knob mechanism 52 is connected to the first strap 20 and the second strap 30 to adjust the cross-linking length of the first strap 20 and the second strap 30. The knob mechanism 52 cooperates with the ratchet pawl mechanism 53 so that the knob mechanism 52 can drive the ratchet pawl mechanism 53 to rotate. The ratchet pawl mechanism 53 is used to lock the relative positions of the first strap 20 and the second strap 30 to ensure the stability of the tightness of the head-mounted device 100.

[0185] The adjustment mechanism housing 51 may include a first housing 511 and a second housing 512 that is snap-fitted to the first housing 511. The first and second housings 511 and 512 sandwich the first and second straps 20 and 30. The first and second housings 511 and 512 cooperate to mount the knob mechanism 52.

[0186] The first shell 511 can be made of a hard material. The first shell 511 can be a sheet-like structure as a whole, or can be other shapes such as a frame structure or a shell-like structure. The first shell 511 can be directly or indirectly mounted on the headrest assembly 40, such as the main shell 41.

[0187] The first housing 511 may include a housing body 5111. The housing body 5111 has a receiving groove 5112 on a side facing the main housing 41 to accommodate the knob mechanism 52. The receiving groove 5112 is provided on the housing body 5111 at a position opposite the center hole 412. The receiving groove 5112 is recessed from the surface of the housing body 5111 toward a side away from the main housing 41. In some embodiments, the receiving groove 5112 may be omitted.

[0188] The housing body 5111 is provided with a mounting shaft 5113 coaxially arranged with the central hole 412 in the receiving groove 5112 for mounting the knob mechanism 52. In some embodiments, the mounting shaft 5113 can be omitted or replaced by a through hole.

[0189] The housing body 5111 is provided with a first mounting groove 5114 and a second mounting groove 5115. The first mounting groove 5114 and the second mounting groove 5115 are both located on the side of the housing body 5111 facing the main housing 41. The first mounting groove 5114 and the second mounting groove 5115 can be located on opposite sides of the mounting shaft 5113.

[0190] The first mounting groove 5114 can be used to accommodate the first strap 20, such as the rack 231. The first mounting groove 5114 can cooperate with the second housing 512 to accommodate the first strap 20, such as the rack 231, so that the first strap 20, such as the rack 231, can slide within the first mounting groove 5114. The first mounting groove 5114 can extend toward the edge of the housing body 5111.

[0191] The first mounting groove 5114 can be connected to the receiving groove 5112. In some embodiments, the depth of the first mounting groove 5114 recessed from the surface of the housing body 5111 facing the main housing 41 toward the side away from the main housing 41 can be smaller than the depth of the receiving groove 5112 recessed from the surface of the housing body 5111 facing the main housing 41 toward the side away from the main housing 41, thereby improving the fit between the first strap 20 and the knob mechanism 52. In some embodiments, the depth of the first mounting groove 5114 recessed from the surface of the housing body 5111 facing the main housing 41 toward the side away from the main housing 41 can be the same as the depth of the receiving groove 5112 recessed from the surface of the housing body 5111 facing the main housing 41 toward the side away from the main housing 41. In some embodiments, when the receiving groove 5112 is omitted, the first mounting groove 5114 can also be omitted.

[0192] The housing body 5111 may be provided with a rib 5116 within the first mounting slot 5114 to contact the first strap 20, thereby reducing the contact area between the first strap 20 and the housing body 5111 and thereby reducing friction between the first strap 20 and the housing body 5111. In some embodiments, the rib 5116 extends in the direction in which the first mounting slot 5114 extends.

[0193] The second mounting groove 5115 can be used to accommodate the second strap 30, such as the rack 331. The second mounting groove 5115 can cooperate with the second housing 512 to accommodate the second strap 30, such as the rack 331, so that the second strap 30, such as the rack 331, can slide within the second mounting groove 5115. The second mounting groove 5115 can extend toward the edge of the housing body 5111.

[0194] The second mounting groove 5115 can be connected to the receiving groove 5112. In some embodiments, the depth of the second mounting groove 5115 recessed from the surface of the housing body 5111 facing the main housing 41 toward the side away from the main housing 41 can be smaller than the depth of the receiving groove 5112 recessed from the surface of the housing body 5111 facing the main housing 41 toward the side away from the main housing 41, thereby improving the fit between the second strap 30 and the knob mechanism 52. In some embodiments, the depth of the second mounting groove 5115 recessed from the surface of the housing body 5111 facing the main housing 41 toward the side away from the main housing 41 can be the same as the depth of the receiving groove 5112 recessed from the surface of the housing body 5111 facing the main housing 41 toward the side away from the main housing 41. In some embodiments, if the receiving groove 5112 is omitted, the second mounting groove 5115 can also be omitted.

[0195] The housing body 5111 may be provided with a rib 5117 within the second mounting slot 5115 to contact the second strap 30, thereby reducing the contact area between the second strap 30 and the housing body 5111 and thereby reducing friction between the second strap 30 and the housing body 5111. In some embodiments, the rib 5117 extends in the direction in which the second mounting slot 5115 extends.

[0196] The second shell 512 can be made of a hard material, and of course can also be made of the same material as the first shell 511 .

[0197] The second shell 512 may be a sheet-like structure as a whole, or may be other shapes such as a frame structure or a shell-like structure. The second shell 512 may be directly or indirectly mounted on the headrest assembly 40 , such as the main shell 41 .

[0198] The second housing 512 may include a housing body 5121. The housing body 5121 may be positioned between the first housing 511, such as the housing body 5111, and the main housing 41. The housing body 5121 may be connected to the first housing 511, such as the housing body 5111, by, for example, snap-fitting, screwing, welding, or bonding. The housing body 5121 may be connected to the main housing 41 by, for example, snap-fitting, screwing, welding, or bonding.

[0199] The housing body 5121 is provided with a clearance groove 5122 on a side away from the main housing 41 to mate with the knob mechanism 52. The clearance groove 5122 is provided on the housing body 5111 at a position opposite the center hole 412. The clearance groove 5122 is recessed from the surface of the housing body 5111 toward the side closer to the main housing 41. In some embodiments, the clearance groove 5122 may be omitted.

[0200] The housing body 5121 is provided with a clearance hole 5123 coaxially arranged with the central hole 412 in the clearance groove 5122 for installing the knob mechanism 52 .

[0201] The housing body 5121 is provided with a first assembly groove 5124 and a second assembly groove 5125. The first assembly groove 5124 and the second assembly groove 5125 are both located on a side of the housing body 5121 away from the main housing 41. The first assembly groove 5124 and the second assembly groove 5125 can be located on opposite sides of the clearance hole 5123.

[0202] When the housing body 5121 is connected to the first housing 511, such as the housing main body 5111, the first assembly groove 5124 cooperates with the first installation groove 5114 to form a channel for accommodating the first strap 20, such as the rack 231. This allows the first strap 20, such as the rack 231, to slide within the channel. The first assembly groove 5124 may extend toward the edge of the housing body 5121.

[0203] The first assembly groove 5124 can be connected to the clearance groove 5122. In some embodiments, the depth of the first assembly groove 5124 recessed from the surface of the housing body 5121 away from the main housing 41 to the side closer to the main housing 41 can be smaller than the depth of the clearance groove 5122 recessed from the surface of the housing body 5121 away from the main housing 41 to the side closer to the main housing 41, thereby improving the fit between the first strap 20 and the knob mechanism 52. In some embodiments, the depth of the first assembly groove 5124 recessed from the surface of the housing body 5121 away from the main housing 41 to the side closer to the main housing 41 can be the same as the depth of the clearance groove 5122 recessed from the surface of the housing body 5121 away from the main housing 41 to the side closer to the main housing 41.

[0204] In some embodiments, when the clearance groove 5122 is omitted, the first assembly groove 5124 can also be omitted. In some embodiments, the first installation groove 5114 or the first assembly groove 5124 is omitted.

[0205] The housing body 5121 may be provided with a limiting groove 5126 within the first assembly groove 5124 to accommodate the limiting rib 2312 of the first tether 20, such as the rack 231, to achieve a positional fit between the housing body 5121 and the first tether 20. In some embodiments, the limiting groove 5126 extends in the direction of the first assembly groove 5124, allowing the limiting rib 2312 of the first tether 20, such as the rack 231, to slide within the limiting groove 5126.

[0206] When the housing body 5121 is connected to the first housing 511, such as the housing main body 5111, the second assembly groove 5125 cooperates with the second mounting groove 5115 to form a channel for accommodating the second strap 30, such as the rack 331. This allows the second strap 30, such as the rack 331, to slide within the channel. The second assembly groove 5125 may extend toward the edge of the housing body 5121.

[0207] The second assembly groove 5125 can be connected to the clearance groove 5122. In some embodiments, the depth of the second assembly groove 5125 recessed from the surface of the housing body 5121 away from the main housing 41 to the side closer to the main housing 41 can be smaller than the depth of the clearance groove 5122 recessed from the surface of the housing body 5121 away from the main housing 41 to the side closer to the main housing 41, thereby improving the fit between the first strap 20 and the knob mechanism 52. In some embodiments, the depth of the second assembly groove 5125 recessed from the surface of the housing body 5121 away from the main housing 41 to the side closer to the main housing 41 can be the same as the depth of the clearance groove 5122 recessed from the surface of the housing body 5121 away from the main housing 41 to the side closer to the main housing 41.

[0208] In some embodiments, when the clearance groove 5122 is omitted, the second assembly groove 5125 can also be omitted. In some embodiments, the second installation groove 5115 or the second assembly groove 5125 is omitted.

[0209] The housing body 5121 may be provided with a limiting groove 5127 within the second assembly groove 5125 to accommodate the limiting rib 3312 of the second tether 30, such as the rack 331, to achieve positional engagement between the housing body 5121 and the second tether 30. In some embodiments, the limiting groove 5127 extends in the direction of the second assembly groove 5125, allowing the limiting rib 3312 of the second tether 30, such as the rack 331, to slide within the limiting groove 5127.

[0210] In some embodiments, the housing body 5121 is integrally formed with the main housing 41. Specifically, the structure of the housing body 5121 that mates with the first housing 511, such as the housing main body 5111 and the lacing assembly 200, is disposed on the main housing 41. The housing body 5121 is then connected to the main housing 41 to mate with the first lacing strap 20, the second lacing strap 30, and the knob mechanism 52. Furthermore, the housing body 5121 may be omitted. In other words, in some embodiments, the main housing 41 may be part of the adjustment mechanism housing 51. Furthermore, in some embodiments, the clearance hole 5123 and the center hole 412 are identical in structure.

[0211] The knob mechanism 52 can extend between the first housing 511 and the second housing 512, or extend out of the receiving space 401 of the main housing 41. The knob mechanism 52 can include an adjustment wheel 521 disposed on the adjustment mechanism housing 51 and extending out of the main housing 41, such as the receiving space 401, and a rotating disk 522 disposed outside the main housing 41, such as the receiving space 401, and connected to the adjustment wheel 521.

[0212] The adjusting wheel 521 may include a gear body 5211 disposed in the adjusting mechanism housing 51 and a connecting shaft 5212 coaxially disposed with the gear body 5211 and connecting the gear body 5211 and the rotating disk 522 .

[0213] The gear body 5211 can be sandwiched between the first housing 511 and the second housing 512. The gear body 5211 can be coaxially arranged with the mounting shaft 5113. In some embodiments, a socket 5213 is provided on a side of the gear body 5211 away from the connecting shaft 5212 to accommodate the mounting shaft 5113. Furthermore, the socket 5213 cooperates with the mounting shaft 5113 to achieve a rotational connection between the gear body 5211 and the first housing 511. In some embodiments, the gear body 5211 can be located between the first tether 20, such as the rack 231, and the second tether 30, such as the rack 331, and can mesh with the serrations 2311 of the first tether 20, such as the rack 231 (meshing connection, or meshing transmission connection), and can also mesh with the serrations 3311 of the second tether 30, such as the rack 331. In some scenarios, the gear body 5211 rotates around the mounting shaft 5113 , thereby adjusting the cross-linking length between the first tether 20 , such as the rack 231 , and the second tether 30 , such as the rack 331 .

[0214] In some embodiments, the gear body 5211 can be partially located in the receiving groove 5112 to improve the cooperation between the first tether 20, such as the rack 231, and the second tether 30, such as the rack 331, and the gear body 5211. In some embodiments, the gear body 5211 can be partially located in the yielding groove 5122 to improve the cooperation between the first tether 20, such as the rack 231, and the second tether 30, such as the rack 331, and the gear body 5211. In some embodiments, the gear body 5211 can be partially located in the first mounting groove 5114 and the second mounting groove 5125 to improve the cooperation between the first tether 20, such as the rack 231, and the second tether 30, such as the rack 331, and the gear body 5211. In some embodiments, the gear body 5211 can be partially located in the first mounting groove 5124 and the second mounting groove 5115 to improve the cooperation between the first tether 20, such as the rack 231, and the second tether 30, such as the rack 331, and the gear body 5211.

[0215] In some embodiments, when the mounting shaft 5113 is replaced by a through hole, a rotating shaft may be provided at the location of the gear body 5211 where the insertion hole 5213 is provided, so that the rotating shaft passes through the through hole that replaces the mounting shaft 5113 .

[0216] The connecting shaft 5212 can be connected and fixed to the gear body 5211. In some embodiments, the connecting shaft 5212 can be provided with a clearance hole 5123 to be connected and fixed to the gear body 5211 by means of clamping, bonding, screw welding, etc. In some embodiments, the connecting shaft 5212 and the gear body 5211 are an integral structure. In some embodiments, the connecting shaft 5212 can be provided with a clearance hole 5123 to be rotatably connected to the adjustment mechanism housing 51, such as the second housing 512. In some embodiments, the connecting shaft 5212 can be provided with a center hole 412 to extend from the main housing 41, such as the accommodating space 401, and be rotatably connected to the rotating disk 522. In some embodiments, the connecting shaft 5212 can be provided with a center hole 412 to be rotatably connected to the main housing 41.

[0217] In some embodiments, the outer circumference of the connecting shaft 5212 may be polygonal or irregular in shape to engage with the ratchet pawl mechanism 53 so as to drive the ratchet pawl mechanism 53 to rotate through the connecting shaft 5212. In some embodiments, the outer circumference of the connecting shaft 5212 may be polygonal or irregular in shape at least at the portion engaging with the ratchet pawl mechanism 53.

[0218] The rotating disk 522 can be a shell-like structure, a plate-like structure, or a sheet-like structure, or of course, other structures. The rotating disk 522 can include a rotating disk body 5221 that is rotatably connected to the connecting shaft 5212 and cooperates with the ratchet and pawl mechanism 53, and a side wall 5222 that extends from the edge of the rotating disk body 5221 toward one side of the main housing 41.

[0219] The turntable body 5221 can be a plate-like or sheet-like structure. The turntable body 5221 can be rotatably connected to the connecting shaft 5212. A first protrusion 5223 and a second protrusion 5224 are provided on the side of the turntable body 5221 facing the main housing 41 to connect with the ratchet and pawl mechanism 53 to drive the ratchet and pawl mechanism 53 to rotate.

[0220] The side wall 5222 can extend from the edge of the turntable body 5221 toward one side of the main housing 41 to extend into the adapting groove 414 to shield the components inside the ratchet 411 .

[0221] See also Figure 29 and Figure 30 , Figure 29 for Figure 28 The embodiment shown is an exploded schematic diagram of a portion of the ratchet and pawl mechanism 53 in some embodiments. Figure 30 for Figure 28 The ratchet and pawl mechanism 53 shown in the embodiment is a schematic diagram of the structure of the main housing 41 in some embodiments. The ratchet and pawl mechanism 53 may include a ratchet 411 formed on the main housing 41 and a pawl assembly 530 that cooperates with the ratchet 411 and is accommodated in the ratchet 411.

[0222] The pawl assembly 530 may include a supporting plate 531 disposed in the ratchet 411 , and a first pawl 532 , a second pawl 533 , a first elastic member 534 , and a second elastic member 535 disposed on the supporting plate 531 .

[0223] The supporting plate 531 may be a circular sheet structure and may include a supporting body 5311. The supporting body 5311 has a centrally disposed engaging hole 5312 for passing through the supporting wall 413 and the connecting shaft 5212 to achieve a rotational connection with the supporting wall 413.

[0224] A snap-fit ​​frame 5313 is provided on the side of the carrier body 5311 facing away from the main housing 41. The snap-fit ​​frame 5313 can be disposed around the snap-fit ​​hole 5312 to allow the connecting shaft 5212 to pass through and be snap-fitted to the connecting shaft 5212. For example, the snap-fit ​​frame 5313 can be snap-fitted to the outer peripheral surface (polygonal or irregular shape) of the connecting shaft 5212.

[0225] A first assembly shaft 5314 and a second assembly shaft 5315 are provided on a side of the carrier body 5311 facing away from the main housing 41 , so that the first pawl 532 can be mounted via the first assembly shaft 5314 , and the second pawl 533 can be mounted via the second assembly shaft 5315 .

[0226] In some embodiments, the first assembly axis 5314 and the second assembly axis 5315 may be symmetrical about the center of the snap-fit ​​hole 5312 .

[0227] A first mounting frame 5316 and a second mounting frame 5317 are provided on the side of the carrier body 5311 facing away from the main housing 41 , so that the first elastic member 534 can be mounted through the first mounting frame 5316 , and the second elastic member 535 can be mounted through the second mounting frame 5317 .

[0228] In some embodiments, the first mounting frame 5316 and the second mounting frame 5317 may be symmetrical about the center of the engaging hole 5312. In some embodiments, the distance between the first mounting frame 5316 and the engaging hole 5312 is smaller than the distance between the first assembly axis 5314 and the engaging hole 5312. In some embodiments, the distance between the second mounting frame 5317 and the engaging hole 5312 is smaller than the distance between the second assembly axis 5315 and the engaging hole 5312.

[0229] The first pawl 532 is pivotally mounted on the first assembly shaft 5314 on the carrier body 5311 and is rotatable about the first assembly shaft 5314. In some embodiments, the first pawl 532 is provided with a pivot hole 5321 for pivoting to the first assembly shaft 5314, thereby achieving a rotational connection between the first pawl 532 and the first assembly shaft 5314. In some embodiments, the first pawl 532 and the first assembly shaft 5314 can be rotatably connected by means of a screw connection, a snap connection, or the like. In some embodiments, the pivot hole 5321 can be provided at one end of the first pawl 532.

[0230] The first pawl 532 has an abutment portion 5322 that engages with the ratchet 411, such as the internal teeth 4111. In some embodiments, the abutment portion 5322 is angular, so that when the first pawl 532 rotates about the first assembly axis 5314, the abutment portion 5322 moves away from the engaging hole 5312 and engages with the ratchet 411, such as the internal teeth 4111. In some embodiments, when the pivot hole 5321 is provided at one end of the first pawl 532, the abutment portion 5322 can be provided at the other end of the first pawl 532.

[0231] The first pawl 532 can be located between the carrier body 5311 and the turntable body 5221 to cooperate with the rotating disk 522, such as the turntable body 5221. The first pawl 532 is provided with a movable groove 5323 on the side facing the turntable body 5221 for accommodating the first protrusion 5223 on the turntable body 5221.

[0232] The movable groove 5323 includes an inner wall surface 5324 located on the side of the first protrusion 5223 away from the abutment 5322, and an outer wall surface 5325 located on the side of the first protrusion 5223 closer to the abutment 5322. The inner wall surface 5324 can be disposed opposite the outer wall surface 5325 to accommodate the first protrusion 5223 between the inner wall surface 5324 and the outer wall surface 5325. In some embodiments, the inner wall surface 5324 and the outer wall surface 5325 are spaced apart to allow the first protrusion 5223 to move between the inner wall surface 5324 and the outer wall surface 5325, thereby enabling the first protrusion 5223 to contact the inner wall surface 5324 and / or the outer wall surface 5325, or to not contact either the inner wall surface 5324 or the outer wall surface 5325. In some scenarios, the movable groove 5323 accommodates the first protrusion 5223. When the first protrusion 5223 rotates around the locking hole 5312, the first protrusion 5223 can contact the inner wall surface 5324, thereby driving the first pawl 532 to move around the pivot hole 5321 toward the side of the locking hole 5312, so that the abutment portion 5322 is disengaged from the locking engagement with the ratchet 411, such as the inner teeth 4111, thereby driving the supporting plate 531 and the adjusting wheel 521 to rotate, thereby reducing the cross-linking length of the first strap 20 and the second strap 30, and increasing the head circumference of the head-mounted device 100, so that the head-mounted device 100 becomes loose. In some scenarios, the movable groove 5323 accommodates the first protrusion 5223. When the first protrusion 5223 rotates around the snap-on hole 5312, the first protrusion 5223 can contact the outer wall surface 5325, thereby driving the first pawl 532 to move around the pivot hole 5321 toward the side away from the snap-on hole 5312, so that the abutment portion 5322 and the ratchet 411, such as the inner teeth 4111, slide relative to each other, thereby driving the supporting plate 531 and the adjusting wheel 521 to rotate, increasing the cross-linking length of the first strap 20 and the second strap 30, reducing the head circumference of the head-mounted device 100, and making the head-mounted device 100 tighter.

[0233] The second pawl 533 and the first pawl 532 may be symmetrical with respect to the center of the engaging hole 5312 . Of course, their positions may be adjusted as needed.

[0234] The second pawl 533 is pivotally mounted on the second assembly shaft 5315 on the carrier body 5311 and is rotatable about the second assembly shaft 5315. In some embodiments, the second pawl 533 is provided with a pivot hole 5331 for pivoting to the second assembly shaft 5315, thereby achieving a rotational connection between the second pawl 533 and the second assembly shaft 5315. In some embodiments, the second pawl 533 and the second assembly shaft 5315 can be rotatably connected by means of a screw connection, a snap connection, or the like. In some embodiments, the pivot hole 5331 can be provided at one end of the second pawl 533.

[0235] The second pawl 533 has an abutment portion 5332 that engages with the ratchet 411, such as the internal teeth 4111. In some embodiments, the abutment portion 5332 is angled, so that when the second pawl 533 rotates about the second assembly axis 5315, the abutment portion 5332 moves away from the engaging hole 5312 and engages with the ratchet 411, such as the internal teeth 4111. In some embodiments, when the pivot hole 5331 is provided at one end of the second pawl 533, the abutment portion 5332 can be provided at the other end of the second pawl 533.

[0236] The second pawl 533 can be located between the carrier body 5311 and the turntable body 5221 to cooperate with the rotating disk 522, such as the turntable body 5221. The second pawl 533 is provided with a movable groove 5333 on the side facing the turntable body 5221 for accommodating the second protrusion 5224 on the turntable body 5221.

[0237] The movable groove 5333 includes an inner wall surface 5334 located on the side of the second protrusion 5224 away from the abutment 5332, and an outer wall surface 5335 located on the side of the second protrusion 5224 closer to the abutment 5332. The inner wall surface 5334 can be disposed opposite the outer wall surface 5335 to accommodate the second protrusion 5224 between the inner wall surface 5334 and the outer wall surface 5335. In some embodiments, the inner wall surface 5334 and the outer wall surface 5335 are spaced apart to allow the second protrusion 5224 to move between the inner wall surface 5334 and the outer wall surface 5335, thereby enabling the second protrusion 5224 to contact the inner wall surface 5334 and / or the outer wall surface 5335, or to not contact either the inner wall surface 5334 or the outer wall surface 5335. In some scenarios, the movable groove 5333 accommodates the second protrusion 5224. When the second protrusion 5224 rotates around the locking hole 5312, the second protrusion 5224 can contact the inner wall surface 5334, thereby driving the second pawl 533 to move around the pivot hole 5331 toward the side of the locking hole 5312, so that the abutment portion 5332 is disengaged from the locking engagement with the ratchet 411, such as the inner teeth 4111, thereby driving the supporting plate 531 and the adjusting wheel 521 to rotate, thereby reducing the cross-linking length of the first strap 20 and the second strap 30, and increasing the head circumference of the head-mounted device 100, so that the head-mounted device 100 becomes loose. In some scenarios, the movable groove 5333 accommodates the second protrusion 5224. When the second protrusion 5224 rotates around the snap-on hole 5312, the second protrusion 5224 can contact the outer wall surface 5335, thereby driving the second pawl 533 to move around the pivot hole 5331 toward the side away from the snap-on hole 5312, so that the abutment portion 5332 and the ratchet 411, such as the inner teeth 4111, slide relative to each other, thereby driving the supporting plate 531 and the adjusting wheel 521 to rotate, increasing the cross-linking length of the first strap 20 and the second strap 30, reducing the head circumference of the head-mounted device 100, and making the head-mounted device 100 tighter.

[0238] In some embodiments, the first pawl 532 or the second pawl 533 may be omitted.

[0239] The first elastic member 534 can be mounted on the first mounting frame 5316 and can abut against the first pawl 532, specifically, can abut against the surface of the first pawl 532 facing the engaging hole 5312. Specifically, the first elastic member 534 can be mounted on the first mounting frame 5316 by snapping, screwing, welding, or the like.

[0240] The first elastic member 534 may have elastic deformation properties and elastically deform when the first pawl 532 rotates around the pivot hole 5321 .

[0241] The first elastic member 534 can be made of an elastic material and can be a spring, a torsion spring, an elastic sheet or the like.

[0242] The second elastic member 535 can be mounted on the second mounting frame 5317 and can abut against the second pawl 533, specifically, can abut against the surface of the second pawl 533 facing the engaging hole 5312. Specifically, the second elastic member 535 can be mounted on the second mounting frame 5317 by snapping, screwing, welding, or the like.

[0243] The second elastic member 535 may have elastic deformation properties and elastically deform when the second pawl 533 rotates around the pivot hole 5331 .

[0244] The second elastic member 535 can be made of elastic material and can be a spring, a torsion spring, an elastic sheet or the like.

[0245] See also Figure 27 、 Figure 28 and Figure 30 The rotating disk 522 rotates around the connecting shaft 5212, so that the first protrusion 5223 drives the first pawl 532 to rotate, and the second protrusion 5224 drives the second pawl 533 to rotate.

[0246] For example, the first protrusion 5223 drives the first pawl 532 in the first direction ( Figure 30The second protrusion 5224 rotates in the first direction (counterclockwise or clockwise, with the counterclockwise direction being used as an example), and the second protrusion 5224 drives the second pawl 533 to rotate in the first direction, compressing the first elastic member 534 and the second elastic member 535, thereby causing elastic deformation. The abutting portion 5322 of the first pawl 532 is disengaged from the ratchet 411, such as the inner teeth 4111, and the abutting portion 5332 of the second pawl 533 is disengaged from the ratchet 411, such as the inner teeth 4111. The rotating disk 522 drives the supporting plate 531 and the connecting shaft 5212 to rotate. When the rotating disk 522 stops rotating, the force of the first elastic member 534 restoring the original state causes the abutting portion 5322 of the first pawl 532 to be fixed to the ratchet 411, such as the inner teeth 4111. The force of the second elastic member 535 restoring the original state causes the abutting portion 5332 of the second pawl 533 to be fixed to the ratchet 411, such as the inner teeth 4111.

[0247] For example, the first protrusion 5223 drives the first pawl 532 to rotate in a second direction (the second direction is opposite to the first direction), and the second protrusion 5224 drives the second pawl 533 to rotate in the second direction. The abutting portion 5322 of the first pawl 532 will slide relative to the ratchet 411, such as the inner teeth 4111, and the abutting portion 5332 of the second pawl 533 will slide relative to the ratchet 411, such as the inner teeth 4111. The rotating disk 522 drives the supporting plate 531 and the connecting shaft 5212 to rotate. When the rotating disk 522 stops rotating, the first elastic member 534 causes the abutting portion 5322 of the first pawl 532 to be fixed to the ratchet 411, such as the inner teeth 4111, and the second elastic member 535 causes the abutting portion 5332 of the second pawl 533 to be fixed to the ratchet 411, such as the inner teeth 4111.

[0248] See also Figure 31 and Figure 32 , Figure 31 This is a schematic diagram of the coordination of the rack 231, the rack 331 and the tension adjustment assembly 50 in one embodiment of the present application. Figure 32 for Figure 31The cross-sectional view taken along line XXXII-XXXII shows the arrangement of rack 231 and rack 331 with the tension adjustment assembly 50. When the adjusting wheel 521, such as the connecting shaft 5212, rotates, it drives the gear body 5211 to rotate about the mounting shaft 5113, thereby driving the rack 231 and rack 331 meshed with the gear body 5211 to slide. This causes the rack 231 to slide within the first assembly groove 5124, the limiting rib 2312 to slide within the limiting groove 5126, the rack 331 to slide within the second assembly groove 5125, and the limiting rib 3312 to slide within the limiting groove 5127. This prevents the limiting rib 2313 from sliding into the first assembly groove 5124 and the limiting rib 3313 from sliding into the second assembly groove 5125, thereby preventing the rack 231 and rack 331 from sliding relative to the tension adjustment assembly 50 and preventing them from slipping out.

[0249] See also Figure 33 and Figure 34 , Figure 33 Schematic diagram of the structure of the tension adjustment assembly 50 and the main housing 41 in other embodiments of the present application. Figure 34 for Figure 33 A schematic diagram of the structure of the tension adjustment assembly 50 and the main housing 41 in the illustrated embodiment, viewed from another perspective. The ratchet and pawl mechanism 53 in the tension adjustment assembly 50 can be mounted on the adjustment mechanism housing 51. Similarly, the knob mechanism 52 can also be mounted on the adjustment mechanism housing 51. Mounting the knob mechanism 52 on the side of the main housing 41 away from the wearing assembly 10 can be avoided to enhance the appearance of the head-mounted device 100.

[0250] In some embodiments, the adjustment mechanism housing 51 has a mounting opening 501 at a downward position, allowing the knob mechanism 52, such as the rotary disk 522, to be mounted in the mounting opening 501 and exposed outside the accommodating space 401. In other words, the mounting opening 501 is in communication with the outside world. In some embodiments, the mounting opening 501 may be located between the first sub-functional component 441 and the second sub-functional component 442.

[0251] See also Figure 35 and Figure 36 , Figure 35 for Figure 34 An exploded view of the tension adjustment assembly 50 in some embodiments is shown. Figure 36 for Figure 35 The tension adjustment assembly 50 is shown in an exploded view from another perspective. The tension adjustment assembly 50 may include an adjustment mechanism housing 51 installed in the accommodation space 401 , a knob mechanism 52 installed on the adjustment mechanism housing 51 , and a ratchet and pawl mechanism 53 installed on the adjustment mechanism housing 51 .

[0252] The adjustment mechanism housing 51 is used to support the knob mechanism 52 and the ratchet and pawl mechanism 53. It also functions to position the first and second straps 20 and 30. The knob mechanism 52 is connected to the first and second straps 20 and 30 to adjust the cross-link length between the first and second straps 20 and 30. The knob mechanism 52 cooperates with the ratchet and pawl mechanism 53, allowing the knob mechanism 52 to rotate the ratchet and pawl mechanism 53. The ratchet and pawl mechanism 53 is used to lock the relative position of the first and second straps 20 and 30, ensuring the stability of the tightness of the head-mounted device 100.

[0253] The adjustment mechanism housing 51 can be Figure 27 and Figure 28 The adjustment mechanism housing 51 shown in FIG has the same general structure, and only the same structures are listed here. For details, please refer to FIG. Figure 27 and Figure 28 The description in the above embodiments is omitted. In addition, the differences are described in detail.

[0254] The adjustment mechanism housing 51 may include a first housing 511 and a second housing 512. The first housing 511 and the second housing 512 cooperate to mount the knob mechanism 52 and the ratchet and pawl mechanism 53.

[0255] The first housing 511 may include a housing body 5111. The housing body 5111 may include a receiving groove 5112. The housing body 5111 may include a mounting shaft 5113. The housing body 5111 may include a first mounting groove 5114 and a second mounting groove 5115. The housing body 5111 may include a rib 5116. The housing body 5111 may include a rib 5117.

[0256] The housing body 5111 is provided with a storage groove 513 on a side of the receiving groove 5112 away from the second installation groove 5115 to accommodate the knob mechanism 52 and the ratchet pawl mechanism 53 .

[0257] The storage slot 513 and the receiving slot 5112 are located on the same side of the housing body 5111. The storage slot 513 can communicate with the receiving slot 5112. The storage slot 513 can extend toward the side of the receiving slot 5112 away from the second mounting slot 5115 and to the edge of the housing body 5111 to form a first connection port 5131, exposing the knob mechanism 52 at the first connection port 5131. Furthermore, the storage slot 513 communicates with the first mounting slot 5114.

[0258] The depth of the storage slot 513 recessed from the surface of the housing body 5121 facing the main housing 41 toward the side away from the main housing 41 may be greater than the depth of the first mounting slot 5114 recessed from the surface of the housing body 5121 facing the main housing 41 toward the side away from the main housing 41, thereby reducing the probability of interference between the structure within the storage slot 513 and the first tether 20 within the first mounting slot 5114. In some embodiments, the depth of the storage slot 513 recessed from the surface of the housing body 5121 facing the main housing 41 toward the side away from the main housing 41 may be greater than the depth of the accommodating slot 5112 recessed from the surface of the housing body 5121 facing the main housing 41 toward the side away from the main housing 41.

[0259] The housing body 5111 is provided with a first pivot axis 5132 and a second pivot axis 5133 within the storage slot 513. The first pivot axis 5132 and the second pivot axis 5133 cooperate to mount the knob mechanism 52 and the ratchet and pawl mechanism 53. The first pivot axis 5132 can be located between the mounting axis 5113 and the second pivot axis 5133. The second pivot axis 5133 is closer to the first connection port 5131 than the first pivot axis 5132.

[0260] The housing body 5111 is provided with a first mounting portion 5134 and a second mounting portion 5135 within the storage slot 513 and around the second pivot axis 5133 for mounting the ratchet and pawl mechanism 53. In some embodiments, the first mounting portion 5134 is a groove, a protrusion, or a bump. In some embodiments, the second mounting portion 5135 can be a rotating shaft.

[0261] The second housing 512 may include a housing body 5121. The housing body 5121 is provided with a clearance groove 5122. The housing body 5121 is provided with a clearance hole 5123. Of course, the clearance hole 5123 may be omitted and replaced by a mounting shaft, and then cooperated with the mounting shaft 5113 to install the knob mechanism 52.

[0262] The housing body 5121 is provided with a first assembly groove 5124 and a second assembly groove 5125. The housing body 5121 is provided with a limiting groove 5126. Of course, the limiting groove 5126 and the limiting rib 2312 can be omitted. The housing body 5121 can be provided with a limiting groove 5127. Of course, the limiting groove 5127 and the limiting rib 3312 can be omitted.

[0263] In some embodiments, the housing body 5121 may cover a portion of the first housing 511, for example, the first pivot axis 5132, but not the second pivot axis 5133, the first mounting portion 5134, the second mounting portion 5135, etc. This allows the first housing 511 to mate with the main housing 41 to form a mounting opening 501 at the first connection opening 5131. Of course, the mounting opening 501 may also be formed by the housing body 5121 covering the first housing 511.

[0264] The knob mechanism 52 can be used with Figure 27 and Figure 28 The knob mechanism 52 shown in FIG is generally the same in structure, and only the same structures are listed here. For details, please refer to FIG. Figure 27 and Figure 28 The description in the above embodiments is omitted. In addition, the differences are described in detail.

[0265] The knob mechanism 52 can be mounted within the receiving slot 5112 and the storage slot 513 and can extend from the first connection port 5131. The knob mechanism 52 can include an adjustment wheel 521 and a rotating disk 522 mounted within the storage slot 513. The adjustment wheel 521 is in transmission connection with the rotating disk 522. In some embodiments, the adjustment wheel 521 and the rotating disk 522 are in transmission connection via a ratchet and pawl mechanism 53. In some embodiments, the rotating disk 522 can extend from the first connection port 5131.

[0266] The adjustment wheel 521 may include a gear body 5211. In some embodiments, the gear body 5211 may be directly rotatably connected to the mounting shaft 5113. The gear body 5211 may also be rotatably connected to the mounting shaft 5113 through other structural means, such as snap-fitting, threaded connection, welding, etc. In some embodiments, the gear body 5211 may be rotatably connected to the mounting shaft 5113 by being sandwiched between the first housing 511 and the second housing 512.

[0267] The gear body 5211 is provided with a socket 5213. In some embodiments, the socket 5213 may extend through the gear body 5211. In some embodiments, when the mounting shaft 5113 is replaced with a through-hole, a rotating shaft may be provided at the location of the socket 5213 on the gear body 5211, so that the rotating shaft extends through the through-hole replacing the mounting shaft 5113, thereby achieving a rotational connection between the gear body 5211 and the adjustment mechanism housing 51.

[0268] In some embodiments, the gear body 5211 is a double-linked reduction gear. The gear body 5211 may include a first reduction gear 5214 and a second reduction gear 5215 disposed coaxially. The first reduction gear 5214 and the second reduction gear 5215 are penetrated by the insertion hole 5213, and the first reduction gear 5214 and the second reduction gear 5215 are coaxially disposed with the mounting shaft 5113.

[0269] The outer diameter of the first reduction gear 5214 is smaller than the outer diameter of the second reduction gear 5215 .

[0270] The first reduction wheel 5214 is configured to engage (engage) the first and second straps 20 and 30 (engage in a meshing transmission connection). In some embodiments, the first reduction wheel 5214 may be located between the first strap 20, such as the rack 231, and the second strap 30, such as the rack 331. It may engage with the serrations 2311 of the first strap 20, such as the rack 231, and the serrations 3311 of the second strap 30, such as the rack 331. In some scenarios, the first reduction wheel 5214 rotates about the mounting shaft 5113 to adjust the cross-linking length between the first strap 20, such as the rack 231, and the second strap 30, such as the rack 331.

[0271] The first reduction gear 5214 is located on a side of the second reduction gear 5215 away from the first housing 511 , such as the housing body 5111 . That is, the second reduction gear 5215 is sandwiched between the first reduction gear 5214 and the first housing 511 , such as the housing body 5111 .

[0272] In some embodiments, the first reduction wheel 5214 may be partially located within the accommodating groove 5112 to enhance the effect of the first strap 20 , such as the rack 231 , and the second strap 30 , such as the rack 331 , cooperating with the first reduction wheel 5214 , respectively.

[0273] In some embodiments, the first reduction wheel 5214 may be partially located in the first mounting groove 5114 and the second assembly groove 5125 to enhance the effect of the first strap 20, such as the rack 231, and the second strap 30, such as the rack 331, cooperating with the first reduction wheel 5214 respectively.

[0274] In some embodiments, the first reduction wheel 5214 may be partially located in the first assembly groove 5124 and the second installation groove 5115 to enhance the effect of the first strap 20, such as the rack 231, and the second strap 30, such as the rack 331, cooperating with the first reduction wheel 5214 respectively.

[0275] The second reduction wheel 5215 is used to be engaged with the ratchet and pawl mechanism 53 so as to rotate synchronously with the first reduction wheel 5214 under the drive of the ratchet and pawl mechanism 53 .

[0276] In some embodiments, the second reduction wheel 5215 is flush with the bottom of the first mounting groove 5114 and the bottom of the second mounting groove 5115 .

[0277] The rotating disk 522 can be mounted within the storage slot 513 and rotatably connected to the second pivot shaft 5133. The rotating disk 522 can include a rotating disk body 5221 and a sidewall 5222 that is transmission-connected to the ratchet and pawl mechanism 53. The rotating disk body 5221 is rotatably connected to the second pivot shaft 5133. In some embodiments, a connection hole 5225 is provided in the middle of the rotating disk body 5221 to accommodate the second pivot shaft 5133, so that the rotating disk body 5221 and the second pivot shaft 5133 are coaxially arranged and rotatably connected. In some embodiments, the rotating disk body 5221 and the second pivot shaft 5133 are coaxially arranged and rotatably connected. In some embodiments, the rotating disk body 5221 can be rotatably connected to the second pivot shaft 5133 through other structural means such as snap-fitting, screwing, welding, etc. In some embodiments, the rotating disk 522 can also be rotatably connected to the second pivot shaft 5133 by being sandwiched between the first housing 511 and the second housing 512. In some embodiments, the second pivot shaft 5133 may be a part of the rotating disk 522 instead of being disposed on the adjustment mechanism housing 51 .

[0278] The rotating disk 522 may be provided with a clamping portion 5226 around the connecting hole 5225 to connect with the ratchet pawl mechanism 53 and drive the ratchet pawl mechanism 53 to rotate. In some embodiments, the clamping portion 5226 may be a perforated hole and may be in communication with the connecting hole 5225. In some embodiments, the clamping portion 5226 may be a Figure 27 and Figure 28 And the first protrusion 5223 and the second protrusion 5224 described in the above embodiment.

[0279] The side wall 5222 is provided with an internal gear 5220 to connect with the ratchet and pawl mechanism 53 .

[0280] The ratchet pawl mechanism 53 can be used with Figure 27 and Figure 28 、 Figure 29 、 Figure 30 The ratchet and pawl mechanism 53 shown in FIG is generally the same in structure, and only the same structures are listed here. Figure 27 and Figure 28 The description in the above embodiments is omitted. In addition, the differences are described in detail.

[0281] In some embodiments, Figure 27 and Figure 28 、 Figure 29 、 Figure 30The ratchet and pawl mechanism 53 shown in the figure can be directly mounted on the first housing 511. That is, the ratchet 411 can be mounted on the side of the first housing 511 facing the main housing 41, similar to the arrangement on the main housing 41. Specifically, the ratchet 411 can be mounted in the storage slot 513 and positioned around the second pivot shaft 5133. The second pivot shaft 5133 can be passed through the engaging hole 5312 of the support plate 531 in the ratchet and pawl mechanism 53, thereby achieving a rotational connection between the support plate 531 and the second pivot shaft 5133. The rotating disk 522, such as the rotating disk body 5221, engages with the ratchet and pawl mechanism 53 via the first protrusion 5223 and the second protrusion 5224. The rotating disk 522 can mesh with the gear body 5211 for transmission. For example, the outer periphery of the side wall 5222 can be provided with external teeth to mesh with the first reduction gear 5214 or the second reduction gear 5215 in the gear body 5211. In other words, the second reduction gear 5215 can be omitted. In some embodiments, Figure 27 and Figure 28 、 Figure 29 、 Figure 30 The ratchet and pawl mechanism 53 shown in the figure can be directly disposed on the side of the second housing 512 away from the first housing 511, similar to the arrangement on the main housing 41. The ratchet and pawl mechanism 53 cooperates with the rotating disk 522. In other words, the second housing 512 covers the storage slot 513 of the first housing 511. The rotating disk 522 extends from the storage space 401 between the second housing 512 and the main housing 41. In other words, the installation opening 501 is disposed between the second housing 512 and the main housing 41, and is not formed by the first connection opening 5131 of the storage slot 513.

[0282] In some embodiments, the ratchet and pawl mechanism 53 may include a ratchet 411 and a pawl assembly 530 mounted within the storage slot 513. The ratchet 411 is meshedly connected to the pawl assembly 530. The ratchet 411 is meshedly connected to the gear body 5211, such as the second reduction gear 5215. The pawl assembly 530 is connected to the rotating disk 522. The rotating disk 522 then sequentially drives the pawl assembly 530, the ratchet 411, and the gear body 5211, such as the second reduction gear 5215, to rotate, thereby adjusting the cross-linking length between the first tether 20, such as the rack 231, and the second tether 30, such as the rack 331.

[0283] In some embodiments, the ratchet 411 can be coaxially arranged with the first pivot shaft 5132 and mounted on the first pivot shaft 5132. In some embodiments, the ratchet 411 can be flush with the bottom of the first mounting slot 5114, rather than being placed within the first mounting slot 5114, thereby reducing the probability of interference with the first tether 20 within the first mounting slot 5114.

[0284] In some embodiments, the ratchet 411 may be rotatably connected to the gear body 5211 , such as the second reduction gear 5215 .

[0285] In some embodiments, the ratchet 411 is a triple reduction gear. The ratchet 411 may include a coaxially arranged third reduction gear 4112, a fourth reduction gear 4113, and a fifth reduction gear 4114. The third reduction gear 4112, the fourth reduction gear 4113, and the fifth reduction gear 4114 may be penetrated by the first pivot shaft 5132, and thus the third reduction gear 4112, the fourth reduction gear 4113, and the fifth reduction gear 4114 are all coaxially arranged with the first pivot shaft 5132.

[0286] The outer diameter of the third reduction gear 4112 is smaller than the outer diameter of the fourth reduction gear 4113. In some embodiments, the outer diameter of the third reduction gear 4112 is smaller than the outer diameter of the fifth reduction gear 4114. In some embodiments, the outer diameter of the fifth reduction gear 4114 is smaller than the outer diameter of the fourth reduction gear 4113.

[0287] The third reduction wheel 4112 can be flush with the bottom of the first mounting groove 5114, thereby reducing the possibility of interference with the first tether 20 in the first mounting groove 5114. The third reduction wheel 4112 can be meshed with the gear body 5211, such as the second reduction wheel 5215, and can drive the gear body 5211, such as the second reduction wheel 5215, to rotate.

[0288] The fourth reduction wheel 4113 may be located on a side of the third reduction wheel 4112 away from the main housing 41 . The fourth reduction wheel 4113 may be engaged with the pawl assembly 530 .

[0289] The fifth reduction gear 4114 may be located on a side of the fourth reduction gear 4113 away from the third reduction gear 4112. That is, the fourth reduction gear 4113 is located between the third reduction gear 4112 and the fifth reduction gear 4114. The fifth reduction gear 4114 may be engaged and secured with the pawl assembly 530 to limit the position of the ratchet 411. In some embodiments, the fifth reduction gear 4114 may be omitted, so that the third reduction gear 4112 or the fourth reduction gear 4113 may be engaged and secured with the pawl assembly 530 to limit the position of the ratchet 411. In some embodiments, the fourth reduction gear 4113 may be omitted along with the fifth reduction gear 4114, and the third reduction gear 4112 may be engaged and connected with the gear body 5211, such as the second reduction gear 5215, and engaged and secured with the pawl assembly 530 to limit the position of the ratchet 411.

[0290] The pawl assembly 530 can be used with Figure 27 and Figure 28 The pawl assembly 530 shown in FIG has the same structure. Only the same structure is listed here. For details, please refer to FIG. Figure 27 and Figure 28 The description in the above embodiments is omitted. In addition, the differences are described in detail.

[0291] See also Figure 37 and Figure 38 , Figure 37 for Figure 36 The schematic structural diagram of the ratchet and pawl mechanism 53 in the illustrated embodiment is shown in another embodiment. Figure 38 for Figure 37 The ratchet and pawl mechanism 53 of the illustrated embodiment is schematically shown from another perspective. The pawl assembly 530 is mounted within the storage slot 513. The pawl assembly 530 may include a supporting plate 531, a first pawl 532, a second pawl 533, a first elastic member 534, a second elastic member 535, a first rolling member 536, a second rolling member 537, a transmission gear 538, a limiting member 539, a limiting pawl 540, and a limiting elastic member 541.

[0292] The supporting plate 531 may include a supporting body 5311. The supporting body 5311 is provided with a locking hole 5312 for passing the second pivot shaft 5133 therethrough to achieve a rotational connection with the second pivot shaft 5133.

[0293] The carrier body 5311 is provided with a snap-on frame 5313. The snap-on frame 5313 does not need to be snap-on with the second pivot shaft 5133. The snap-on frame 5313 does not need to be provided with the first mounting frame 5316 and the second mounting frame 5317, so that the first elastic member 534 and the second elastic member 535 can be mounted in other ways. Of course, the first elastic member 534 and the second elastic member 535 can also be mounted using the first mounting frame 5316 and the second mounting frame 5317.

[0294] A first assembly axis 5314 and a second assembly axis 5315 are provided on the side of the carrying body 5311 facing the main housing 41 .

[0295] The support plate 531 is radially provided with a first stopper 5318 and a second stopper 5319. The first stopper 5318 engages with the first mounting portion 5134. The second stopper 5319 engages with the second mounting portion 5135. In some embodiments, the first stopper 5318 and the second stopper 5319 extend from the support plate 531 toward a side away from the second pivot axis 5133. In some embodiments, the first stopper 5318 and the second stopper 5319 are symmetrical about the center of the second pivot axis 5133.

[0296] The first pawl 532 may be located between the first housing 511 and the main housing 41 and may not be covered by the second housing 512. Of course, in some embodiments, the first pawl 532 may also be covered by the second housing 512, and the rotating disk 522 may also be covered by the second housing 512.

[0297] The first pawl 532 defines a pivot hole 5321 . In some embodiments, the first pawl 532 may not be provided with the abutting portion 5322 .

[0298] The first pawl 532 may be provided with an abutment stopper 5326 that abuts against the clamping frame 5313. In some scenarios, the abutment stopper 5326 can rotate about the first assembly axis 5314 toward the clamping frame 5313 and can be rotated to a position where the abutment stopper 5326 abuts against the clamping frame 5313. In some scenarios, the abutment stopper 5326 can rotate about the first assembly axis 5314 away from the clamping frame 5313 and can be rotated to a position where the abutment stopper 5326 is no longer abutted against the clamping frame 5313. In some embodiments, the abutment stopper 5326 may be a protrusion. In some embodiments, the abutment stopper 5326 may have elastic deformation characteristics. Of course, the abutment stopper 5326 may not have elastic deformation characteristics, but the portion of the clamping frame 5313 where the abutment stopper 5326 abuts against the clamping frame 5313 may have elastic deformation characteristics.

[0299] The first pawl 532 may be provided with a slot 5327 to accommodate the first rolling element 536. The slot 5327 may be provided on a side of the first pawl 532 facing away from the engaging hole 5312. In some embodiments, the first pawl 532 is rotatable about the first assembly axis 5314. When the portion of the first pawl 532 provided with the slot 5327 moves away from the engaging hole 5312, the abutment stopper 5326 may move toward the engaging frame 5313 and into a position where the abutment stopper 5326 abuts against the engaging frame 5313. In some embodiments, the first pawl 532 is rotatable about the first assembly axis 5314. When the portion of the first pawl 532 provided with the slot 5327 moves toward the engaging hole 5312, the abutment stopper 5326 may move away from the engaging frame 5313 and into a position where the abutment stopper 5326 is released from abutment against the engaging frame 5313.

[0300] The second pawl 533 may be located between the first housing 511 and the main housing 41 and may not be covered by the second housing 512. Of course, in some embodiments, the second pawl 533 may also be covered by the second housing 512, and the rotating disk 522 may also be covered by the second housing 512.

[0301] The second pawl 533 defines a pivot hole 5331. In some embodiments, the second pawl 533 may not be provided with the abutting portion 5332.

[0302] The second pawl 533 may be provided with an abutment stopper 5336 that abuts against the clamping frame 5313. In some scenarios, the abutment stopper 5336 can rotate about the second assembly axis 5315 toward the clamping frame 5313 and can be rotated to a position where the abutment stopper 5336 abuts against the clamping frame 5313. In some scenarios, the abutment stopper 5336 can rotate about the second assembly axis 5315 toward a side away from the clamping frame 5313 and can be rotated to a position where the abutment stopper 5336 is no longer abutted against the clamping frame 5313. In some embodiments, the abutment stopper 5336 may be a protrusion. In some embodiments, the abutment stopper 5336 may have elastic deformation characteristics. Of course, the abutment stopper 5336 may not have elastic deformation characteristics, but the portion of the clamping frame 5313 where the abutment stopper 5336 abuts against the clamping frame 5313 may have elastic deformation characteristics.

[0303] The second pawl 533 may be provided with a slot 5337 to accommodate the second rolling element 537. The slot 5337 may be provided on a side of the second pawl 533 facing away from the engaging hole 5312. In some embodiments, the second pawl 533 is rotatable about the second assembly axis 5315. When the portion of the second pawl 533 provided with the slot 5337 moves away from the engaging hole 5312, the abutment stopper 5336 may move toward the engaging frame 5313 and rotate to a position where the abutment stopper 5336 abuts against the engaging frame 5313. In some embodiments, the second pawl 533 is rotatable about the second assembly axis 5315. When the portion of the second pawl 533 provided with the slot 5337 moves toward the engaging hole 5312, the abutment stopper 5336 may move away from the engaging frame 5313 and rotate to a position where the abutment stopper 5336 is released from abutment against the engaging frame 5313.

[0304] The first elastic member 534 can be disposed on the first assembly shaft 5314. In some embodiments, the first elastic member 534 can be directly fixed to the first assembly shaft 5314 by means of snap connection, welding, bonding, screw connection, etc. In some embodiments, the first elastic member 534 can be sleeved on the first assembly shaft 5314 and rotatably connected to the first assembly shaft 5314. In some embodiments, the portion where the first elastic member 534 is connected to the first assembly shaft 5314 can be placed between the first pawl 532 and the supporting plate 531, such as the supporting body 5311. In some embodiments, the end of the first elastic member 534 away from the first assembly shaft 5314 can abut against the portion of the first pawl 532 away from the first assembly shaft 5314, so as to impart a force to the first pawl 532 to move around the first assembly shaft 5314 toward a side away from the snap connection hole 5312 through elastic deformation. In some embodiments, when the first elastic member 534 is rotatably connected to the first assembly shaft 5314 , the middle portion of the first elastic member 534 may abut against the clamping frame 5313 , so that the first elastic member 534 may be elastically deformed through the lever principle.

[0305] The second elastic member 535 can be disposed on the second assembly shaft 5315. In some embodiments, the second elastic member 535 can be directly fixed to the second assembly shaft 5315 by means of snap connection, welding, bonding, screw connection, etc. In some embodiments, the second elastic member 535 can be sleeved on the second assembly shaft 5315 and rotatably connected to the second assembly shaft 5315. In some embodiments, the portion where the second elastic member 535 is connected to the second assembly shaft 5315 can be positioned between the second pawl 533 and the supporting plate 531, such as the supporting body 5311. In some embodiments, an end of the second elastic member 535 away from the second assembly shaft 5315 can abut against a portion of the second pawl 533 away from the second assembly shaft 5315, so that elastic deformation imparts a force to the second pawl 533 to move about the second assembly shaft 5315 toward a side away from the engaging hole 5312. In some embodiments, when the second elastic member 535 is rotatably connected to the second assembly shaft 5315 , the middle portion of the second elastic member 535 may abut against the clamping frame 5313 , so that the second elastic member 535 may be elastically deformed through the lever principle.

[0306] The first rolling member 536 can be disposed within the engaging groove 5327 and, under the action of the first elastic member 534, can abut against the internal gear 5220 of the rotating disk 522, such as the side wall 5222. In one embodiment, the first elastic member 534 pushes the first pawl 532 toward the first rolling member 536, thereby pushing the first rolling member 536 away from the engaging hole 5312, causing the first rolling member 536 to abut against the internal gear 5220 of the rotating disk 522, such as the side wall 5222. In some embodiments, the first rolling member 536 can be spherical or cylindrical, so that the contact area between the first rolling member 536 and the internal gear 5220 of the rotating disk 522, such as the side wall 5222, is an arcuate surface, thereby enabling the first rolling member 536 to slide relative to or be fixedly engaged with the internal gear 5220 of the rotating disk 522, such as the side wall 5222. It is understood that the first rolling member 536 can contact the internal gear 5220 of the rotating disk 522, such as the side wall 5222. Therefore, the portion where the first rolling member 536 contacts the rotating disk 522, such as the side wall 5222, can be referred to as the abutment portion 5322. Furthermore, the abutment portion 5322 can be an arcuate surface, or even a curved surface, to enable relative sliding or clamping engagement between the abutment portion 5322 and the rotating disk 522, such as the side wall 5222. In some embodiments, the first rolling member 536 can be integrally formed with the first pawl 532.

[0307] Please also read Figure 35 、 Figure 36 、 Figure 37 、 Figure 38 and Figure 39 , Figure 39 for Figure 35Schematic diagram of a portion of the structure of the tension adjustment assembly 50 in the embodiment shown. When the rotating disk 522 rotates, it can drive the supporting plate 531 to rotate. For example, the inner gear 5220 of the side wall 5222 of the rotating disk 522 abuts against the first rolling element 536, and the rotating disk 522 rotates in the first direction ( Figure 39 When the first rolling member 536 is rotated in the counterclockwise direction or clockwise direction (counterclockwise or clockwise direction in the figure, counterclockwise direction is taken as an example here), the first rolling member 536 will be pushed to move toward the side close to the engaging hole 5312, and then the first elastic member 534 will be elastically deformed. Under the action force of the elastic deformation, the first rolling member 536 will be in close contact with the internal gear 5220 of the side wall 5222 of the rotating disk 522, and cannot slide relative to each other, thereby driving the supporting plate 531 to rotate. When the supporting plate 531 is subjected to resistance, the resistance will cooperate with the elastic deformation force, so that the internal gear 5220 of the side wall 5222 of the rotating disk 522 is in close contact with the first rolling member 536, and relative sliding occurs, so as to achieve the effect of not driving the supporting plate 531 to rotate, but having a damping effect, so that the user can feel the damping feeling of the relative sliding between the internal gear 5220 and the first rolling member 536. When the cam 532 is in engagement with the first gear 536, the cam 532 is engaged with the first gear 536, and the cam 532 is engaged with the first gear 536.

[0308] The second rolling member 537 can be disposed within the engaging slot 5337 and, under the action of the second elastic member 535, can abut against the internal gear 5220 of the rotating disk 522, such as the side wall 5222. In one embodiment, the second elastic member 535 pushes the second pawl 533 toward the second rolling member 537, thereby pushing the second rolling member 537 away from the engaging hole 5312, causing the second rolling member 537 to abut against the internal gear 5220 of the rotating disk 522, such as the side wall 5222. In some embodiments, the second rolling member 537 can be spherical or cylindrical, so that the portion where the second rolling member 537 contacts the internal gear 5220 of the rotating disk 522, such as the side wall 5222, is an arcuate surface, thereby enabling the second rolling member 537 to slide relative to or be fixedly engaged with the internal gear 5220 of the rotating disk 522, such as the side wall 5222. It is understood that the second rolling member 537 can contact the rotating disk 522, such as the internal gear 5220 of the side wall 5222. Therefore, the portion where the second rolling member 537 contacts the rotating disk 522, such as the internal gear 5220 of the side wall 5222, can be referred to as the abutment portion 5332. Furthermore, the abutment portion 5332 can be an arcuate surface, or even a curved surface, to enable relative sliding or clamping engagement between the abutment portion 5332 and the rotating disk 522, such as the internal gear 5220 of the side wall 5222. In some embodiments, the second rolling member 537 can be integrally formed with the second pawl 533.

[0309] Please also read Figure 35 、 Figure 36 、 Figure 37 、 Figure 38 and Figure 39 When the rotating disk 522 rotates, the supporting plate 531 can be driven to rotate. For example, the inner gear 5220 of the side wall 5222 of the rotating disk 522 abuts against the second rolling element 537, and the rotating disk 522 rotates in the first direction ( Figure 39When the second rolling member 537 is rotated in the counterclockwise direction or clockwise direction (counterclockwise or clockwise direction in the figure, counterclockwise direction is taken as an example here), the second rolling member 537 is pushed to move toward the side close to the engaging hole 5312, and then the second elastic member 535 is elastically deformed. Under the elastic deformation force, the second rolling member 537 is in close contact with the internal gear 5220 of the side wall 5222 of the rotating disk 522, and cannot slide relative to each other, thereby driving the supporting plate 531 to rotate. When the supporting plate 531 is subjected to resistance, the resistance will cooperate with the elastic deformation force, so that the internal gear 5220 of the side wall 5222 of the rotating disk 522 is in close contact with the second elastic member 535, and relative sliding occurs, so as to achieve the effect of not driving the supporting plate 531 to rotate, but to play a damping effect, so that the user can feel the damping sense of the relative sliding between the internal gear 5220 and the first rolling member 536. When the cam 531 is in engagement with the second gear 5200, the second gear 5201 is in engagement with the second elastic member 5350, and the cam 531 is in engagement with the second elastic member 5350. When the cam 531 is in engagement with the second gear 5200, the second gear 5201 is in engagement with the second elastic member 5350. When the cam 531 is in engagement with the second gear 5201, the second gear 5202 is in engagement with the second elastic member 5350.

[0310] See also Figure 37 and Figure 38 The transmission gear 538 can be mounted in the storage slot 513. The transmission gear 538 can be meshed with the ratchet 411, such as the fourth reduction gear 4113, and can be connected to the rotating disk 522 to drive the transmission gear 538 to rotate via the rotating disk 522. The transmission gear 538 can be mounted on the second pivot shaft 5133 and can be coaxially arranged with the second pivot shaft 5133 to rotate about the second pivot shaft 5133.

[0311] The transmission gear 538 may include a rotating wheel body 5381 mounted on the second pivot shaft 5133 and located on the supporting plate 531. The rotating wheel body 5381 may be located on a side of the supporting plate 531 away from the rotating disk 522. The rotating wheel body 5381 may be coaxially disposed with the second pivot shaft 5133 to rotate about the second pivot shaft 5133. In some embodiments, the rotating wheel body 5381 may have a pivot hole 5382 disposed in the middle thereof to be sleeved on the second pivot shaft 5133, thereby achieving a rotational connection with the second pivot shaft 5133.

[0312] A first protrusion 5383 and a second protrusion 5384 are provided on one side of the rotating wheel body 5381 toward the supporting plate 531. The first protrusion 5383 and the second protrusion 5384 can be symmetrically arranged. One of the first protrusion 5383 and the second protrusion 5384 can be omitted.

[0313] The first and second protrusions 5383, 5384 can be inserted into the engaging hole 5312 and engage with the rotating disk 522 located on the side of the supporting plate 531 away from the rotating wheel body 5381. In some embodiments, the first and second protrusions 5383, 5384 can extend from the rotating wheel body 5381 at the edge of the pivot hole 5382, thereby allowing the supporting plate 531 to be sleeved over the first and second protrusions 5383, 5384 at the engaging hole 5312, achieving a coaxial arrangement and rotational connection between the supporting plate 531 and the rotating wheel body 5381. In some embodiments, the first and second protrusions 5383, 5384 can abut against the middle portion of the first elastic member 534, thereby enabling elastic deformation of the first elastic member 534 through the principle of leverage. As a result, the middle portion of the first elastic member 534 may not abut against the clamping frame 5313 . Of course, the middle portion of the first elastic member 534 may abut against the clamping frame 5313 .

[0314] In some embodiments, the first protrusion 5383 and the second protrusion 5384 can extend into the engaging portion 5226, such as a through-hole, to achieve engaging engagement between the rotating wheel body 5381 and the rotating disk 522. In some embodiments, the first protrusion 5383 is located within the engaging portion 5226 and can engage with a portion of the engaging portion 5226 on one side, or with a portion of the engaging portion 5226 on one side, or not engage with portions of the engaging portion 5226 on both sides. This allows the first protrusion 5383 and the engaging portion 5226 to engage and rotate together about the second pivot axis 5133, so that the first protrusion 5383 and the engaging portion 5226 do not engage and only the first protrusion 5383 or the engaging portion 5226 rotates about the second pivot axis 5133. That is, when the rotating disk 522 rotates, the first protrusion 5383 can slide within the engaging portion 5226 and can slide from the engaged state of the first protrusion 5383 to the disengaged state, or slide from the disengaged state to the engaged state. In some embodiments, the second protrusion 5384 is located within the engaging portion 5226 and can engage with the engaging portion 5226 on one side, on one side, or not on both sides. This allows the second protrusion 5384 to engage with the engaging portion 5226 and rotate together around the second pivot axis 5133, so that the second protrusion 5384 and the engaging portion 5226 do not engage, and only the second protrusion 5384 or the engaging portion 5226 rotates around the second pivot axis 5133. That is, when the rotating disk 522 rotates, the second protrusion 5384 can slide in the locking portion 5226, and can slide from the state where the second protrusion 5384 is locked with the rotating disk 522 to the state where the lock is released, or slide from the state where the second protrusion 5384 is released from the state where the rotating disk 522 is locked to the state where the lock is released.

[0315] See also Figure 37 and Figure 38 The limiting member 539 can be installed in the first mounting groove 5114 to cooperate with the support plate 531, such as the first limiting portion 5318, to apply resistance to the support plate 531. The limiting member 539 can be an elastic member. The limiting member 539 can include a limiting body 5391. The limiting body 5391 can be formed by bending an elastic sheet, but can also be made of other elastically deformable materials, and even the structure can be customized as needed.

[0316] A damping portion 5392 is provided in the middle of one side of the limiting body 5391 facing the supporting plate 531, and fixing portions, such as a first fixing portion 5393 and a second fixing portion 5394, are provided on either side of the damping portion 5392. In some scenarios, the supporting plate 531, such as the first limiting portion 5318, may be positioned at the fixing portions, such as the first fixing portion 5393 and the second fixing portion 5394, to be fixed to the limiting body 5391. In some embodiments, the damping portion 5392 may apply resistance to the supporting plate 531, such as the first limiting portion 5318, to confine the supporting plate 531, such as the first limiting portion 5318, to the first fixing portion 5393 or the second fixing portion 5394. In some scenarios, the supporting plate 531 rotates around the snap-in hole 5312. The process of the supporting plate 531, for example, the first limiting portion 5318, sliding from the first clamping portion 5393 to the second clamping portion 5394 can cause the damping portion 5392 to undergo elastic deformation and restore to its original state. The elastic deformation of the damping portion 5392 causes resistance to the rotation of the supporting plate 531. When the supporting plate 531 overcomes the resistance, it will slide from the first clamping portion 5393 to the second clamping portion 5394. In some scenarios, the supporting plate 531 rotates around the snap-in hole 5312. The process of the supporting plate 531, for example, the first limiting portion 5318, sliding from the second clamping portion 5394 to the first clamping portion 5393 can cause the damping portion 5392 to undergo elastic deformation and restore to its original state. The elastic deformation of the damping portion 5392 causes resistance to the rotation of the supporting plate 531. When the supporting plate 531 overcomes the resistance, it will slide from the second clamping portion 5394 to the first clamping portion 5393.

[0317] In some embodiments, the damping portion 5392 can be provided by protruding from the limiting body 5391, such as an elastic sheet, toward the side facing the supporting plate 531. In some embodiments, the fixing portions, such as the first fixing portion 5393 and the second fixing portion 5394, can be provided by recessing from the limiting body 5391, such as an elastic sheet, toward the side facing away from the supporting plate 531.

[0318] The limiting pawl 540 is pivotally mounted on the second mounting portion 5135, such as a rotating shaft, and is rotatable about the second mounting portion 5135, such as a rotating shaft. In some embodiments, the limiting pawl 540 is provided with a pivot hole 5401 for pivoting to the second mounting portion 5135, such as a rotating shaft, thereby achieving a rotational connection between the limiting pawl 540 and the second mounting portion 5135, such as a rotating shaft. In some embodiments, the limiting pawl 540 and the second mounting portion 5135, such as a rotating shaft, can be rotatably connected by means of a screw connection, a snap connection, or the like. In some embodiments, the pivot hole 5401 can be located in the middle of the limiting pawl 540.

[0319] The limiting pawl 540 has an interconnected abutment portion 5402 and an adjusting portion 5403. A pivot hole 5401 is provided at the location where the abutment portion 5402 and the adjusting portion 5403 are connected to each other. Of course, the pivot hole 5401 can also be provided on the abutment portion 5402 or the adjusting portion 5403.

[0320] The abutment portion 5402 extends toward the ratchet 411 to engage with the ratchet 411, such as the fifth reduction gear 4114, to limit the position of the ratchet 411 and prevent the ratchet 411 from rotating. In some scenarios, the abutment portion 5402 can rotate about the second mounting portion 5135, such as a rotating shaft, to move toward the ratchet 411 and engage with the ratchet 411, such as the fifth reduction gear 4114, to limit the position of the ratchet 411 and prevent the ratchet 411 from rotating. In some scenarios, the abutment portion 5402 can rotate about the second mounting portion 5135, such as a rotating shaft, to move away from the ratchet 411, disengaging from the ratchet 411, such as the fifth reduction gear 4114, to allow the ratchet 411 to rotate.

[0321] The surface of the adjusting portion 5403 facing the supporting plate 531 can abut against the supporting plate 531, such as the second limiting portion 5319, so that when the supporting plate 531, such as the second limiting portion 5319, rotates around the engaging hole 5312, the adjusting portion 5403 can rotate around the second mounting portion 5135, such as the rotating shaft. In some embodiments, the adjusting portion 5403 can be slidably connected to the supporting plate 531, such as the second limiting portion 5319. In some scenarios, such as Figure 37 As shown, when the carrier plate 531, for example, the first limiting portion 5318, slides from the first fixing portion 5393 to the second fixing portion 5394, the carrier plate 531, for example, the second limiting portion 5319, pushes the adjusting portion 5403, causing the adjusting portion 5403 to move away from the carrier plate 531, thereby causing the contact portion 5402 to move toward the carrier plate 531, thereby disengaging from the ratchet 411, for example, the fifth reduction gear 4114. In some scenarios, such as Figure 37 As shown, when the supporting plate 531, for example, the first limiting portion 5318, slides from the second clamping portion 5394 to the first clamping portion 5393, the adjusting portion 5403 can move toward the side close to the supporting plate 531, thereby causing the abutting portion 5402 to move toward the side away from the supporting plate 531, close to the ratchet 411, and engage with the ratchet 411, for example, the fifth reduction wheel 4114.

[0322] See also Figure 37 and Figure 38, the limiting elastic member 541 can be set on the second mounting portion 5135, such as a rotating shaft. In some embodiments, the limiting elastic member 541 can be directly fixed to the second mounting portion 5135, such as a rotating shaft, by means of clamping, welding, bonding, screwing, etc. In some embodiments, the limiting elastic member 541 can be sleeved on the second mounting portion 5135, such as a rotating shaft, and is rotatably connected to the second mounting portion 5135, such as a rotating shaft. In some embodiments, the portion where the limiting elastic member 541 is connected to the second mounting portion 5135, such as a rotating shaft, can be placed between the limiting pawl 540 and the first shell 511. In some embodiments, the end of the limiting elastic member 541 away from the second mounting portion 5135, such as the rotating shaft, can abut against the side of the limiting pawl 540, such as the adjustment portion 5403 away from the supporting plate 531, so as to give the limiting pawl 540, such as the adjustment portion 5403, a force to move around the first assembly axis 5314 toward the side close to the supporting plate 531 through elastic deformation. In some embodiments, when the limiting elastic member 541 is rotatably connected to the second mounting portion 5135 , such as a rotating shaft, the middle portion of the limiting elastic member 541 can abut against the first shell 511 , so that the limiting elastic member 541 can undergo elastic deformation through the lever principle.

[0323] See also Figure 35 、 Figure 36 、 Figure 37 、 Figure 38 and Figure 39 , the rotating disk 522 is in the first direction ( Figure 39 The rotating disk 522 can be rotated in the counterclockwise or clockwise direction (counterclockwise direction is used as an example here), while the rotating disk 522 can slide from a disengaged state to an engaged state with the first protrusion 5383 and the second protrusion 5384 at the engaging portion 5226, or remain in the engaged state. When the rotating disk 522 is in the disengaged state with the first protrusion 5383 and the second protrusion 5384, it cannot drive the transmission gear 538 to rotate.

[0324] The rotating disk 522 continues to rotate in the first direction, and the internal gear 5220 of the side wall 5222 of the rotating disk 522 abuts against the first rolling member 536 and the second rolling member 537, pushing the first rolling member 536 and the second rolling member 537 to move toward the side close to the engaging hole 5312. The first elastic member 534 and the second elastic member 535 are elastically deformed. Under the elastic deformation force, the first rolling member 536 and the second rolling member 537 are in close contact with the internal gear 5220 of the side wall 5222 of the rotating disk 522.

[0325] The supporting plate 531 , for example, the first limiting portion 5318 is fastened to the first fastening portion 5393 , so that the supporting plate 531 cannot rotate, and the rotating disk 522 slides relative to the first rolling element 536 and the second rolling element 537 .

[0326] The rotating disk 522 continues to rotate in the first direction until it is engaged with the first protrusion 5383 and the second protrusion 5384 at the engaging portion 5226. The rotating disk 522 drives the transmission gear 538 to rotate, and the transmission gear 538 and the ratchet 411, such as the fourth reduction wheel 4113, rotate. The ratchet 411, such as the third reduction wheel 4112, drives the adjusting wheel 521, such as the second reduction wheel 5215 to rotate, and the adjusting wheel 521, such as the first reduction wheel 5214, rotates to reduce the cross-linking length between the first strap 20 and the second strap 30, so that the head-mounted device 100 becomes loose.

[0327] At the same time, the ratchet 411, such as the fifth reduction wheel 4114, will push the limiting pawl 540, such as the abutment portion 5402, to move toward the side away from the ratchet 411, such as the fifth reduction wheel 4114, so that the limiting pawl 540, such as the abutment portion 5402, disengages from the ratchet 411, such as the fifth reduction wheel 4114, and at the same time causes the limiting elastic member 541 to undergo elastic deformation.

[0328] When the cross-linking length between the first strap 20 and the second strap 30 is adjusted to a suitable position, the force applied to the rotating disk 522 will stop, and then the limiting elastic member 541 will elastically deform to push the limiting pawl 540, such as the adjusting portion 5403, to move toward the side of the supporting plate 531, and the limiting pawl 540, such as the abutting portion 5402, will move toward the side of the ratchet 411 to engage with the ratchet 411, such as the fifth reduction wheel 4114, to achieve limiting fixation of the ratchet 411 and prevent the ratchet 411 from rotating.

[0329] The rotating disk 522 rotates in a second direction (opposite to the first direction). During the period when the rotating disk 522 can slide from a disengaged state to a engaged state with the first protrusion 5383 and the second protrusion 5384 at the engaging portion 5226, the rotating disk 522 cannot drive the transmission gear 538 to rotate when it is in a disengaged state with the first protrusion 5383 and the second protrusion 5384.

[0330] The rotating disk 522 continues to rotate in the first direction, and the internal gear 5220 of the side wall 5222 of the rotating disk 522 abuts against the first rolling member 536 and the second rolling member 537, pushing the first rolling member 536 and the second rolling member 537 to move toward the side close to the engaging hole 5312. The first elastic member 534 and the second elastic member 535 are elastically deformed. Under the elastic deformation force, the first rolling member 536 and the second rolling member 537 are in close contact with the internal gear 5220 of the side wall 5222 of the rotating disk 522. Then, under the rotation of the rotating disk 522, the supporting plate 531 rotates.

[0331] The supporting plate 531, for example, the first limiting portion 5318 overcomes the elastic deformation of the damping portion 5392 and slides from the first clamping portion 5393 to the second clamping portion 5394. At the same time, the supporting plate 531, for example, the second limiting portion 5319 pushes the limiting pawl 540, for example, the adjusting portion 5403 to move away from the supporting plate 531. The limiting elastic member 541 undergoes elastic deformation, and the limiting pawl 540, for example, the abutting portion 5402 disengages from the ratchet 411, for example, the fifth reduction wheel 4114.

[0332] The rotating disk 522 continues to rotate in the first direction and will rotate until the rotating disk 522 is engaged with the first protrusion 5383 and the second protrusion 5384 at the engaging portion 5226. Since the supporting plate 531, such as the first limiting portion 5318, is engaged at the second engaging portion 5394, the supporting plate 531 remains stationary. Then, the rotating disk 522 will slide relative to the first rolling member 536 and the second rolling member 537. At the same time, the rotating disk 522 drives the transmission gear 538 to rotate, and the transmission gear 538 and the ratchet 411, such as the fourth reduction wheel 4113, rotate. The ratchet 411, such as the third reduction wheel 4112, drives the adjusting wheel 521, such as the second reduction wheel 5215 to rotate, and the adjusting wheel 521, such as the first reduction wheel 5214, rotates to reduce the cross-linking length between the first strap 20 and the second strap 30, so that the head-mounted device 100 becomes loose.

[0333] When the cross-linking length between the first tether 20 and the second tether 30 is adjusted to a suitable position, the force applied to the rotating disk 522 is stopped, and the limiting elastic member 541 elastically deforms, pushing the limiting pawl 540, such as the adjusting portion 5403, toward the side of the supporting plate 531. This in turn pushes the supporting plate 531, such as the first limiting portion 5318, to overcome the elastic deformation of the damping portion 5392 and slide from the second fixing portion 5394 to the first fixing portion 5393. At the same time, the limiting pawl 540, such as the abutting portion 5402, moves toward the side of the ratchet 411 to engage with the ratchet 411, such as the fifth reduction gear 4114, thereby limiting and fixing the ratchet 411 and preventing the ratchet 411 from rotating.

[0334] It is understood that the tension adjustment assembly 50 may further include a power source such as a motor to drive the rotation disk 522. In some embodiments, the circuit trace 102 may be connected to the power source of the tension adjustment assembly 50, such as a motor.

[0335] See also Figure 1 and Figure 2 The first strap 20 cooperates with the first assembly frame 42 to support the wearing component 10 and the headrest component 40, and the second strap 30 cooperates with the second assembly frame 43 to support the wearing component 10 and the headrest component 40. The first strap 20 can slide in the first assembly frame 42, and the second strap 30 can slide in the second assembly frame 43 to achieve tightness adjustment of the head-mounted device 100.

[0336] See also Figure 1 and Figure 2 The force-bearing assembly 60 may include a first force-bearing member 61 and a second force-bearing member 62. The first force-bearing member 61 and the second force-bearing member 62 may serve as force-bearing locations of the head-mounted device 100. In some embodiments, the head-mounted device 100 may be stably supported and worn using at least the first force-bearing member 61 and the second force-bearing member 62 as force-bearing points.

[0337] The first force-bearing member 61 may be located on the side of the wearing component 10, such as the host housing 11, facing the headrest component 40. That is, the first force-bearing member 61 may be provided on the side of the wearing component 10, such as the host housing 11, facing the strap component 200 in some embodiments. The first force-bearing member 61 may be rotatably connected to the wearing component 10, such as the host housing 11, at least by a structure such as a rotating shaft. When the wearing component 10, such as the host housing 11, rotates relative to the strap component 200, such as the first strap 20 and the second strap 30, the first force-bearing member 61 rotates. In some embodiments, the first force-bearing member 61 may be fixed to the strap component 200, such as the first strap 20 and the second strap 30, at least by means of snap-on connection, screw connection, welding, etc., so that the wearing component 10, such as the host housing 11, simultaneously rotates relative to the strap component 200, such as the first strap 20, the second strap 30 and the first force-bearing member 61.

[0338] The first force-bearing member 61 can abut against the wearable component 10, such as the main body housing 11, so that it can be worn on the user's head and realize the function of the main body within the wearable component 10. A decorative groove 601 is formed above the first force-bearing member 61 and the wearable component 10, such as the main body housing 11, to accommodate the decorative member 12, so that the upper surface of the decorative member 12 is flush with the upper surface of the main body housing 11.

[0339] In some embodiments, the first force-bearing members 61 may each include at least a soft pad to enhance the comfort of contact with the user's forehead and around the eyes.

[0340] The second force-bearing member 62 is located on the side of the headrest assembly 40, such as the main shell 41, facing the wearing assembly 10, such as the host shell 11. In some embodiments, the second force-bearing member 62 can include at least a cushion to be fixed to the headrest assembly 40 by bonding, clamping, screwing, etc.

[0341] The above description is merely an embodiment of the present application and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A headrest assembly for a head-mounted device, characterized in that: include: a main housing, configured to contact the user's head via a force-bearing member; An extension shell is connected to the main shell and extends to a side away from the main shell; a flexible bracket, disposed on the extension housing and configured to contact a user's neck; as well as The functional part is arranged on the flexible bracket, and the functional part includes an electrode. The electrode is used to contact the user's neck to output a pulse current.

2. The headrest assembly according to claim 1, wherein: The flexible support comprises: a deformation portion, one end of which is connected to the extension shell and extends toward a side away from the main shell; and The contact portion is arranged at an end of the deformation portion away from the extension shell, the functional component is arranged on a side of the contact portion away from the deformation portion, and the electrode is arranged on the contact portion.

3. The headrest assembly according to claim 2, wherein: The functional parts also include: a light generator, disposed on the contact portion and configured to emit light; The photoelectric sensor is arranged on the contact portion and is used to receive the light reflected by the user's skin.

4. The headrest assembly according to claim 1, wherein: The headrest assembly further includes: The first assembly rack and the second assembly rack are arranged opposite to each other and are respectively connected to the main shell. The first assembly rack, the second assembly rack and the main shell are all located on the same side of the extension shell. The first assembly rack and the second assembly rack are respectively located on both sides of the extension shell.

5. The headrest assembly according to claim 4, characterized in that A sliding through hole is provided in each of the first assembly frame and the second assembly frame, and a receiving space is provided in the main shell. The sliding through hole is communicated with the main shell.

6. A head-mounted device, characterized in that: include: a headrest assembly, configured to contact the user's head; a functional component, disposed below the headrest assembly, the functional component being configured to contact the user's neck; as well as A first tether and a second tether are arranged opposite to each other, each of the first tether and the second tether includes a bracket, a flexible member, and a cross-linking member connected together in sequence in an extension direction, in the extension direction, one end of the flexible member is connected to one end of the bracket, and the cross-linking member is connected to the other end of the flexible member, and in the first tether and the second tether, the two cross-linking members are cross-linked with each other in the headrest assembly; The force-bearing member is arranged on the headrest assembly, and the headrest assembly is used to contact the user's head through the force-bearing member.

7. The head-mounted device according to claim 6, wherein: A first sub-functional component and a second sub-functional component are arranged in parallel below the headrest component, and the functional part is arranged in each of the first sub-functional component and the second sub-functional component.

8. The head-mounted device according to claim 7, wherein: The functional part in the first sub-functional component includes an electrode, which is used to contact with a user to output a pulse current.

9. The head-mounted device according to claim 7, wherein: The head mounted device includes a processor, and the functional parts in the second sub-functional component include: a light generator connected to the processor, wherein the processor is used to control the light generator to emit light; The photoelectric sensor is connected to the processor and is used to receive light reflected by the user's skin.

10. The head-mounted device according to claim 6, wherein: The headrest assembly includes: The main shell is provided with a storage space, in which the two cross-linking parts in the first and second ties are cross-linked with each other in the storage space, and the functional part is provided below the main shell; and The first assembly frame and the second assembly frame are arranged opposite to each other and connected to the main shell. Each of the first assembly frame and the second assembly frame is provided with a sliding hole connected to the accommodating space. In the first tether, the flexible member and the bracket are placed in the sliding hole of the first assembly frame. In the second tether, the flexible member and the bracket are placed in the sliding hole of the second assembly frame.

11. The head mounted device according to claim 10, wherein: In the first tether, the flexible member comprises: a flexible body connected to the cross-linking member; and The connector is connected to the flexible body and plugged into the bracket.

12. The head-mounted device according to claim 11, wherein: In the first tether, the connector includes: The plug-in body is provided with a clearance space, the end of the flexible body is placed in the clearance space and connected to the plug-in body; and The buckle portion is provided on the plug-in body and plugged into the bracket.

13. The head mounted device according to claim 12, wherein: In the first tether, a wiring channel extending in the extending direction of the flexible body is provided in the flexible body, and the flexible member further comprises: a limiting member, disposed in the wiring channel and located in the clearance space; and The clamping piece is sleeved on the end of the flexible body and is located in the clearance space. The clamping piece is clamped with the plug-in body. The clamping piece is configured to undergo elastic deformation when clamped with the plug-in body to clamp the flexible body with the limiting piece.

14. The head mounted device according to claim 13, wherein: In the first tether, the fastening member includes: A fixing body, which is sleeved around the flexible body; and The elastic portion is provided on the fixing body and is plugged and fixed with the plugging body. The elastic portion is configured to undergo elastic deformation when plugged and fixed with the plugging body, so as to fix the flexible body with the limiting member.

15. The head mounted device according to claim 13, wherein: The limiting component includes a circuit line, which is extended in the extension direction of the line channel and partially placed in the accommodating space.

16. The head mounted device according to claim 6, wherein: In the first tether, the cross-linking member comprises: a rack, configured to be cross-linked and connected to the cross-linking member in the second tether; and a first clamping member connected to the rack; and The second clamping member is connected to the first clamping member to clamp the flexible member in the first strap.

17. The head mounted device according to claim 16, wherein: The first clamping member comprises: a clamping body, cooperating with the second clamping member to clamp the flexible member in the first tether; and The abutment plate connects the rack and the clamping body, and a wiring hole is provided on the abutment plate.

18. The head mounted device according to claim 17, wherein: In the first strap, a fixing protrusion is provided on the clamping body, and a fixing groove is provided on the flexible member to cooperate with the fixing protrusion.

19. A head-mounted device, characterized in that: include: Host housing; A headrest assembly is arranged opposite to the main body housing, and the headrest assembly includes: main housing; An extension shell is connected to the main shell and extends downward from the main shell; a flexible bracket, disposed on a side of the extension housing close to the main housing, for contacting a user's neck; and a functional component, disposed on a side of the flexible bracket close to the host housing, the functional component being configured to contact the user's neck; A first tether and a second tether are arranged opposite to each other, each of the first tether and the second tether respectively connecting the main body shell and the headrest assembly; and a tension adjustment component, disposed on the main housing and connected to the first lace and the second lace, so as to adjust the length of the cross-linking between the first lace and the second lace; The force-bearing member is arranged on the main shell, and the main shell is used to contact the user's head through the force-bearing member.

Images