Tightening adjustment component and head-mounted device

Abstract

The present application discloses a tension adjustment assembly and a head-mounted device, belonging to the technical field of intelligent devices. In the tension adjustment assembly, the adjustment wheel is connected inside the adjustment mechanism housing; the ratchet and pawl mechanism is arranged on the adjustment mechanism housing and is in transmission connection with the adjustment wheel for clamping the adjustment wheel; the rotating disk is arranged on the adjustment mechanism housing and is in transmission connection with the ratchet and pawl mechanism for releasing the clamping of the ratchet and pawl mechanism on the adjustment wheel and driving the adjustment wheel to rotate through the ratchet and pawl mechanism. In the present application, the rotation of the rotating disk can be transmitted to the ratchet and pawl mechanism, thereby driving the adjustment wheel to rotate, realizing the adjustment of the cross-linking length of the two laces. In addition, when the rotating disk does not rotate, the ratchet and pawl mechanism can clamp the adjustment wheel to maintain the cross-linking length of the two laces.

Description

Technical Field

[0001] This application belongs to the technical field of intelligent devices, and particularly relates to a tension adjustment component and a head-mounted device. Background Art

[0002] Virtual Reality (VR) and Augmented Reality (AR) technologies can bring users a visual experience almost indistinguishable from the real scene, and are currently popular research fields. In order to enable users to better experience VR and AR technologies, VR and AR usually use head-mounted devices for display.

[0003] A head-mounted device is a wearable device worn on a user's head. After wearing, a display screen used for VR or AR display is located in front of the user's eyes. By displaying corresponding content in the areas of the display screen in the head-mounted device corresponding to the left and right eyes of the wearing user, the user can experience the display effects of VR or AR.

[0004] The head-mounted device is assisted in wearing by a lace. By adjusting the length of the lace, it is convenient and comfortable for the user to wear. Therefore, an adjustment device is needed to complete the adjustment of the lace length. Summary of the Invention

[0005] On the one hand, this application provides a tension adjustment component, including:

[0006] A housing of the adjustment mechanism;

[0007] An adjustment wheel, connected inside the housing of the adjustment mechanism;

[0008] A ratchet and pawl mechanism, arranged on the housing of the adjustment mechanism, in transmission connection with the adjustment wheel, and used for clamping the adjustment wheel; and

[0009] A rotating disk, arranged on the housing of the adjustment mechanism, in transmission connection with the ratchet and pawl mechanism, used for releasing the clamping of the ratchet and pawl mechanism on the adjustment wheel, and driving the adjustment wheel to rotate through the ratchet and pawl mechanism.

[0010] On the one hand, this application provides a head-mounted device, including:

[0011] A headrest component, having an accommodation space;

[0012] A tension adjustment component, installed in the accommodation space, and the tension adjustment component includes:

[0013] A housing of the adjustment mechanism, having two side-by-side channels, and both of the two channels are communicated with the accommodation space;

[0014] The adjusting wheel is rotatably connected inside the adjusting mechanism housing. The two channels are arranged side by side on opposite sides of the adjusting wheel, and the adjusting wheel is partially located in each of the two channels;

[0015] A ratchet and pawl mechanism is provided on the adjusting mechanism housing and is in transmission connection with the adjusting wheel for clamping the adjusting wheel; and

[0016] A rotating disk is provided on the adjusting mechanism housing and is in transmission connection with the ratchet and pawl mechanism for releasing the clamping of the ratchet and pawl mechanism on the adjusting wheel and driving the adjusting wheel to rotate through the ratchet and pawl mechanism. The rotating disk is exposed outside the accommodation space below the headrest assembly.

[0017] On the one hand, the present application provides a head-mounted device, including:

[0018] An adjusting mechanism housing having two side-by-side channels;

[0019] An adjusting wheel is rotatably connected inside the adjusting mechanism housing, and the two channels are arranged side by side on opposite sides of the adjusting wheel;

[0020] A ratchet and pawl mechanism is provided on the adjusting mechanism housing and is in transmission connection with the adjusting wheel for clamping the adjusting wheel;

[0021] A rotating disk is provided on the adjusting mechanism housing and is in transmission connection with the ratchet and pawl mechanism for releasing the clamping of the ratchet and pawl mechanism on the adjusting wheel and driving the adjusting wheel to rotate through the ratchet and pawl mechanism; and

[0022] A first tie and a second tie. The first tie is placed in one of the two channels and is in transmission connection with the adjusting wheel. The second tie is placed in the other of the two channels and is in transmission connection with the adjusting wheel, so that the first tie and the second tie are cross-linked. The adjusting wheel is used to adjust the cross-linked length of the first tie and the second tie.

[0023] Adopting the technical solution of the present application, the beneficial effects are as follows: When the rotating disk rotates in the present application, it can be transmitted to the ratchet and pawl mechanism, and then drive the adjusting wheel to rotate, realizing the adjustment of the cross-linked length of the two ties. In addition, when the rotating disk does not rotate, the ratchet and pawl mechanism can clamp the adjusting wheel to maintain the cross-linked length of the two ties. Description of the Drawings

[0024] Figure 1 It is a schematic structural diagram of a head-mounted device in some embodiments of the present application;

[0025] Figure 2 is Figure 1Schematic structural diagram of the head-mounted device shown from another perspective;

[0026] Figure 3 is Figure 2 Schematic structural diagram of the wearing component shown in some embodiments;

[0027] Figure 4 is Figure 3 Schematic structural diagram of the partially disassembled wearing component in the illustrated embodiment;

[0028] Figure 5 is Figure 1 Schematic structural diagram of the lacing component in the illustrated embodiment in some embodiments;

[0029] Figure 6 is Figure 5 Exploded view of the bracket and the flexible member in the illustrated embodiment;

[0030] Figure 7 is Figure 6 Schematic structural diagram of the bracket in the illustrated embodiment;

[0031] Figure 8 is Figure 6 Exploded view of the bracket in the illustrated embodiment;

[0032] Figure 9 is Figure 6 Exploded schematic diagram of the flexible member in an embodiment of the illustrated embodiment;

[0033] Figure 10 is Figure 6 Schematic structural diagram of the flexible member in some other embodiments of the illustrated embodiment;

[0034] Figure 11 is Figure 10 Exploded schematic diagram of the flexible member in an embodiment of the illustrated embodiment;

[0035] Figure 12 is Figure 10 Cross-sectional view of the flexible member along line XII-XII in the illustrated embodiment;

[0036] Figure 13 is Figure 10 Cross-sectional view of the flexible member along line XII-XII when cooperating with the circuit trace 102 in some other embodiments of the illustrated embodiment;

[0037] Figure 14 is Figure 5 Schematic structural diagram of the cooperation between the flexible member and the cross-linking member in some embodiments;

[0038] Figure 15 is Figure 14Schematic cross-sectional view of the flexible member and the crosslinked member in cooperation in some embodiments;

[0039] Figure 16 For Figure 1 Schematic structural view of the wearing assembly, the bracket, and the cooperation of the bracket in some embodiments;

[0040] Figure 17 For Figure 1 Schematic structural view of the cooperation between the headrest assembly and the force-bearing assembly in [description];

[0041] Figure 18 For Figure 17 Schematic structural view of the cooperation between the headrest assembly and the force-bearing assembly from another perspective in [description];

[0042] Figure 19 For Figure 17 Schematic structural view of at least a part of the headrest assembly shown in some embodiments;

[0043] Figure 20 For Figure 19 Schematic structural view of at least a part of the headrest assembly shown in another embodiment;

[0044] Figure 21 For Figure 1 Schematic structural view of the cooperation between the first lace, the second lace, and the headrest assembly shown in some embodiments;

[0045] Figure 22 For Figure 21 Schematic structural view of the cooperation between the first lace and the first mounting bracket in the shown embodiment;

[0046] Figure 23 For Figure 21 Cross-sectional view along line XXIII-XXIII of the cooperation between the first lace and the first mounting bracket in the shown embodiment;

[0047] Figure 24 For Figure 18 Schematic structural view of the shown functional component;

[0048] Figure 25 For Figure 24 Schematic structural view of the cooperation between the functional part and the processor 103 in some other embodiments in the shown embodiment;

[0049] Figure 26 For Figure 17 Schematic structural view of the cooperation between the tension adjustment component and the main housing in some embodiments in the shown embodiment;

[0050] Figure 27 For Figure 26 Exploded view of the tension adjustment component in some embodiments;

[0051] Figure 28 for Figure 27 An exploded view of the tension adjustment assembly shown in another perspective;

[0052] 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;

[0053] Figure 30 for Figure 28 A schematic diagram of the structure of the ratchet and pawl mechanism in the illustrated embodiment cooperating with the main housing in some embodiments;

[0054] Figure 31 It is a schematic diagram of the coordination of the rack, the rack and the tension adjustment component in one embodiment of the present application;

[0055] Figure 32 for Figure 31 The cross-sectional view of the rack, the rack and the tension adjustment assembly part structure when they are matched at line XXXII-XXXII;

[0056] Figure 33 This is a schematic diagram of the structure of the tension adjustment assembly and the main housing in other embodiments of the present application;

[0057] Figure 34 for Figure 33 A schematic structural diagram of the tension adjustment assembly and the main housing in another viewing angle in the illustrated embodiment;

[0058] Figure 35 for Figure 34 An exploded view of a tension adjustment assembly in some embodiments is shown;

[0059] Figure 36 for Figure 35 An exploded view of the tension adjustment assembly shown in another perspective;

[0060] Figure 37 for Figure 36 A schematic structural diagram of the ratchet and pawl mechanism in another embodiment of the embodiment shown;

[0061] Figure 38 for Figure 37 A schematic structural diagram of the ratchet and pawl mechanism in the illustrated embodiment from another perspective;

[0062] 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

[0063] The following will clearly and completely describe the technical solutions in the embodiments of the present application in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts belong to the scope of protection of the present application.

[0064] As used herein, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present application. The phrase appears in various places in the specification and is not necessarily referring to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0065] The present application describes a head-mounted device. The head-mounted device can be an augmented reality or virtual reality device, such as augmented reality (AR) or virtual reality glasses. Of course, the head-mounted device can also be other devices that need to be worn on the head, such as glasses, or devices with other functions such as lighting and can be worn on the head, which will not be elaborated here. Hereinafter, augmented reality or virtual reality glasses will be taken as an example for detailed description.

[0066] In the example of augmented reality or virtual reality glasses, the head-mounted device can be configured to transfer data to an external processing device via a signal connection and receive data from the external processing device. The signal connection can be a wired connection, a wireless connection, or a combination thereof. However, in other cases, the head-mounted device can be used as a stand-alone 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 smart phone, or other types of processing devices. 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), etc., or a combination thereof. Additionally, the external processing device can communicate with one or more other external processing devices via a network, and the network can 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.

[0067] A display component, an optical device, a sensor, a battery, and a processor 103 (see Figure 25) etc. In an example of augmented reality or virtual reality glasses, the display component is designed to, for example, project light into the user's eyes to implement the functions of virtual reality glasses, and to, for example, project light into the user's eyes and overlay an image 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 that implement the electrical connection of the internal electronic components of the head-mounted device (see Figure 13 )).

[0068] Please refer to Figure 1 and Figure 2 , Figure 1 which is a schematic structural diagram of the head-mounted device in some embodiments of the present application, Figure 2 is Figure 1 a schematic structural diagram of the head-mounted device shown in another perspective. The head-mounted device 100 may include a wearing component 10, a first lacing 20 and a second lacing 30 connected to the wearing component 10, a headrest component 40 disposed opposite to the wearing component 10, a tension adjustment component 50 mounted on the headrest component 40 and used for connecting with the first lacing 20 and the second lacing 30, and a force-bearing component 60 disposed on the wearing component 10 and the headrest component 40.

[0069] The first lacing 20 and the second lacing 30 are disposed opposite to each other. The wearing component 10, the first lacing 20, the second lacing 30 and the headrest component 40 can form an annular frame for the user to wear. The force-bearing component 60 can be disposed on the annular frame and can be used as a component in direct contact with the user of the annular frame, which can make the user wear the head-mounted device 100 more comfortably. The first lacing 20 and the second lacing 30 can form a lacing component 200. Of course, the lacing component 200 can include not only the first lacing 20 and the second lacing 30, but also other structures.

[0070] It should be noted that the terms "first", "second", etc. herein and hereinafter are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. can explicitly or implicitly include one or more of the said features.

[0071] Please refer to Figure 1 and Figure 2 , the wearing component 10 may include a main body housing 11 disposed opposite to the headrest component 40 and respectively connected to the first lacing 20 and the second lacing 30.

[0072] The main body housing 11 can be made of at least a rigid material. Of course, other materials can also be added or directly used to achieve certain special functions of the main body housing 11, such as tactile effects, visual effects, light effects (such as light transmission, refraction, display), etc.

[0073] An accommodation space 101 is provided inside the main body housing 11 to accommodate the main body, battery, etc. It can be understood that the main body can include the display component, optical device, sensor, and processor 103 described above. Of course, the main body can also at least include the control circuit described above. In addition, the main body and the battery can also be part of the wearing component 10. Of course, the wearing component 10 is not limited to the main body housing 11, the main body, the battery, etc., and can also include others.

[0074] The main body housing 11 can be worn in front of the user's eyes to realize the display function of the display component, and in front of the user's eyes, to realize the augmented reality or virtual reality function. Of course, it can also be to realize other functions of the head-mounted device 100, which will not be elaborated. The main body 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 the direct contact between the main body housing 11 and the user's head.

[0075] Please refer to Figure 3 and Figure 4 , Figure 3 is Figure 2 a schematic structural diagram of the wearing component 10 in some embodiments shown in Figure 4 is Figure 3 a schematic structural diagram of the partially disassembled wearing component 10 in the shown embodiment. A decorative member 12 is provided on the main body housing 11 to wrap the ends of the lacing component 200, such as the first lace 20 and the second lace 30, to block the ends of the lacing component 200, such as the first lace 20 and the second lace 30, and improve the appearance expressiveness of the head-mounted device 100.

[0076] The decorative member 12 is provided on one side of the main body housing 11 close to the force-bearing component 60 and above the space between the main body housing 11 and the force-bearing component 60. Of course, the setting position of the decorative member 12 can be adjusted according to requirements, which will not be elaborated.

[0077] An installation space 1201 is provided inside the decorative member 12 to communicate with the accommodation space 101 to realize the layout of the circuit trace 102 from inside the installation space 1201 to inside the accommodation space 101. In addition, in some embodiments, the installation space 1201 can accommodate the ends of the lacing component 200, such as the first lace 20 and the second lace 30.

[0078] The decorative member 12 can be a housing-like structure. The decorative member 12 can include a first snap housing 121 and a second snap housing 122 that are snap-connected to each other. The first snap housing 121 and the second snap housing 122 are snap-connected to form an installation space 1201, and the ends of the lacing assembly 200, such as the first lace 20 and the second lace 30, can be clamped within the installation space 1201.

[0079] In some embodiments, the first snap housing 121 can be located above the second snap housing 122. Of course, the relative positional relationship between the first snap housing 121 and the second snap housing 122 can be adjusted according to requirements. For example, the first snap housing 121 can also be located on the side of the second snap housing 122 facing the main body housing 11.

[0080] In some embodiments, the first snap housing 121 and / or the second snap housing 122 can be fixedly connected to the lacing assembly 200, such as the first lace 20 and the second lace 30, by, for example, snap connection, welding, bonding, screwing, etc., to realize the relative arrangement of the first lace 20 and the second lace 30, and to realize the wearing of the main body housing 11 in cooperation with the first lace 20 and the second lace 30. Of course, the first snap housing 121 and / or the second snap housing 122 can also be rotatably connected to the lacing assembly 200, such as the first lace 20 and the second lace 30.

[0081] In some embodiments, the first snap housing 121 can be connected to the second snap housing 122 to clamp the lacing assembly 200, such as the first lace 20 and the second lace 30, to realize the rotational connection between the first snap housing 121 and the second snap housing 122 and the lacing assembly 200, such as the first lace 20 and the second lace 30.

[0082] In some embodiments, the first snap housing 121 and the second snap housing 122 can be an integral structure. In some embodiments, the decorative member 12, such as the first snap housing 121 and the second snap housing 122, can be omitted, and the main body housing 11 can be connected to the lacing assembly 200, such as the first lace 20 and the second lace 30, through other structures.

[0083] Please refer to Figure 1 、 Figure 2 and Figure 5 , Figure 5 for Figure 1Schematic structural diagram of the lacing assembly 200 in some embodiments shown. The lacing assembly 200 may include a first lace 20 and a second lace 30 which are oppositely arranged. Both the first lace 20 and the second lace 30 are 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 lace 20 may be the same as that of the second lace 30. Of course, they may also be different. Here, the first lace 20 will be introduced in detail. The specific structure and function of the second lace 30 can be set with reference to the structure and function of the first lace 20.

[0084] Please refer to Figure 5 , the first lace 20 may include a bracket 21 connected to the wearing assembly 10, such as the main body housing 11, a flexible member 22 connected to the bracket 21 and extending towards the headrest assembly 40, and a cross-linking member 23 connected to the flexible member 22 and extending into the headrest assembly 40.

[0085] The bracket 21 cooperates with the wearing assembly 10, such as the main body housing 11, to support the wearing assembly 10, such as the main body housing 11, so that the wearing assembly 10, such as the main body housing 11, is better positioned in front of the user's eyes. The flexible member 22 can be bent, and thus the first lace 20 can be bent and further cooperate with the headrest assembly 40. The cross-linking member 23 can be indirectly connected to the headrest assembly 40 through the tension adjustment assembly 50 to realize the relative arrangement of the headrest assembly 40 and the wearing assembly 10, such as the main body housing 11, and the wearing of the head-mounted device 100.

[0086] Please refer to Figure 5 and Figure 6 , Figure 6 is Figure 5 exploded view of the bracket 21 and the flexible member 22 in the embodiment shown. The bracket 21 may include a bracket body 211 connected to the flexible member 22 and a connection assembly 212 connected to the bracket body 211 and the wearing assembly 10, such as the main body housing 11. The bracket body 211 is connected to the wearing assembly 10, such as the main body housing 11, through the connection assembly 212.

[0087] Please refer to Figure 7 and Figure 8 , Figure 7 is Figure 6 schematic structural diagram of the bracket 21 in the embodiment shown, Figure 8 is Figure 6 exploded decomposition diagram of the bracket 21 in the embodiment shown. The bracket body 211 can be made of a rigid material to achieve the effects of support and shaping. The bracket body 211 can be a tubular structure, which can be solid or hollow inside. Of course, the bracket body 211 can also be other shapes, such as a frame structure, a sheet structure, etc.

[0088] The bracket body 211 has opposite ends, namely a first end 2111 connected to the flexible member 22 and a second end 2112 connected to the connection assembly 212.

[0089] The bracket body 211 has a wiring channel 2101 in the extending direction for arranging circuit traces 102 within the wiring channel 2101. The wiring channel 2101 is arranged between the first end 2111 and the second end 2112. In some embodiments, the wiring channel 2101 can cooperate with the flexible member 22 to be connected to the bracket body 211. For example, the wiring channel 2101 can enable the flexible member 22 to extend into the wiring channel 2101 to be connected to the bracket body 211.

[0090] In some embodiments, the bracket body 211 is provided with a clamping hole 2113 communicating with the wiring channel 2101 at the first end 2111 to cooperate with the flexible member 22 to realize the connection between the bracket body 211 and the flexible member 22.

[0091] In some embodiments, the bracket body 211 is provided with a limiting notch 2114 at the edge of the first end 2111 to cooperate with the flexible member 22 to realize the limitation of the relative position between the bracket body 211 and the flexible member 22.

[0092] 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 member 12, so that the end of the bracket body 211 is placed within the installation space 1201.

[0093] In some embodiments, the bracket body 211 can be bent towards the side close to the second tie 30 at the second end 2112.

[0094] Please refer to Figure 7 , the connection assembly 212 can include a movable member 2121 connected to the second end 2112 of the bracket body 211 and a fixed member 2122 rotatably connected to the movable member 2121. The fixed member 2122 is fixed on the wearing component 10, such as the main body housing 11. The movable member 2121 is connected to the bracket body 211. When the movable member 2121 rotates relative to the fixed member 2122, the relative rotation between the wearing component 10, such as the main body housing 11, and the bracket body 211 is realized.

[0095] The movable member 2121 can be made of a rigid material, or of course, the same material as the bracket body 211. The movable member 2121 can be a tubular structure, or of course, it can be other structures. The movable member 2121 can be fixed to the bracket body 211 by means of snap connection, bonding, welding, screwing, etc. In some embodiments, the movable member 2121 and the bracket body 211 can be an integral structure. That is, in certain embodiments, the movable member 2121 can be a part of the bracket body 211. That is, in certain embodiments, the movable member 2121 can be omitted, and the bracket body 211 is rotatably connected to the fixing member 2122, and the structure on the movable member 2121 that cooperates with the fixing member 2122 can be arranged at the second end 2112 of the bracket body 211.

[0096] The movable member 2121 can be arranged in 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 certain embodiments, according to the installation requirements, a part of the movable member 2121 can be exposed, and in some embodiments, the second end 2112 of the bracket body 211 is not located in the installation space 1201 of the wearing component 10, such as the decorative member 12.

[0097] In some embodiments, the movable member 2121 can have a configuration space 2102 so that the bracket body 211 extends into the configuration space 2102, and the movable member 2121 is sleeved around the bracket body 211. Of course, it can also be that the movable member 2121 extends into the wiring channel 2101, and the bracket body 211 is sleeved around the movable member 2121. The configuration space 2102 is communicated with the wiring channel 2101. Furthermore, the configuration space 2102 and the wiring channel 2101 jointly arrange the circuit wiring 102, so that the circuit wiring 102 extends into the installation space 1201 of the decorative member 12 and can further extend into the accommodation space 101 of the main body housing 11 to be connected to structures such as the main body and the battery. It can be understood that the circuit wiring 102 can also not pass through the configuration space 2102 and directly extend into the installation space 1201 of the decorative member 12 through the wiring channel 2101 and can further extend into the accommodation space 101 of the main body housing 11.

[0098] In some embodiments, a first limiting structure 2123 is provided on the movable member 2121 to cooperate with the fixing member 2122 to limit the relative rotation angle between the movable member 2121 and the fixing member 2122. In some embodiments, the first limiting structure 2123 can be a chute or a protrusion.

[0099] The fixing member 2122 can be made of a rigid material, or of course, the same material as the movable member 2121, the bracket body 211, etc. The fixing member 2122 can be a tubular structure, or of course, it can be other structures.

[0100] The fixing member 2122 can be disposed within the installation space 1201 of the wearing component 10, such as the decorative member 12, to prevent the fixing member 2122 from being exposed. Of course, in some embodiments, according to the installation requirements, a part of the fixing member 2122 can be exposed.

[0101] The fixing member 2122 can be fixed to the decorative member 12, such as the first fastening housing 121 and / or the second fastening housing 122. In some embodiments, the fixing member 2122 and the decorative member 12, such as the first fastening housing 121 and the second fastening housing 122, can be an integral structure. In some embodiments, the fixing member 2122 can be fixed to other structures of the main body housing 11, rather than being fixed to the decorative member 12, such as the first fastening housing 121 and the second fastening housing 122.

[0102] The fixing member 2122 can be sleeved on the movable member 2121. Of course, it can also extend into the configuration space 2102 to achieve the rotational connection between the fixing member 2122 and the fixing member 2122. In some embodiments, a second limiting structure 2124 cooperating with the first limiting structure 2123 is provided on the fixing member 2122 to cooperate with the first limiting structure 2123 to limit the relative rotational angle between the movable member 2121 and the fixing member 2122. In some embodiments, the second limiting structure 2124 can be a protrusion placed in a chute and slidingly cooperating with the chute, or a chute accommodating a protrusion and slidingly cooperating with the protrusion.

[0103] In some embodiments, a part of the connecting component 212 and the bracket body 211 can be disposed within the accommodating space 101 of the wearing component 10, such as the main body housing 11.

[0104] Please refer to Figure 6 and Figure 9 , Figure 9 is Figure 6 an exploded schematic view of the flexible member 22 in an embodiment shown in the figure. The flexible member 22 can include a flexible main body 221 connected to the crosslinking member 23 and a plugging component 222 connected to the flexible main body 221 and plugged into the bracket 21, such as the bracket body 211. The flexible main body 221 realizes the detachable connection with the bracket 21, such as the bracket body 211, through the plugging component 222.

[0105] The flexible main body 221 has a bendable property and can thus be made of flexible materials such as resin, plastic, fiber, etc. The flexible main body 221 can be a tubular structure, which can be solid or hollow inside. Of course, the flexible main body 221 can also be other shapes, such as a frame structure, a sheet structure, etc.

[0106] 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 arranged only in part of the flexible body 221, for example, only at the end portions such as the third end 2211 and the fourth end 2212.

[0107] 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 .

[0108] The plug-in assembly 222 may include a plug-in component 223 connected to the flexible body 221 , such as the third end 2211 , and used to be connected to the bracket body 211 , such as the first end 2111 .

[0109] 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 disposed on the plug body 2231 and used to connect to the bracket body 211 , such as the first end 2111 .

[0110] The plug body 2231 can be fixed together with the flexible body 221, for example, 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.

[0111] 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.

[0112] The plug body 2231 can extend into the flexible body 221, such as the wiring channel 2201, and be connected to 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 be connected to the plug body 2231, and facilitate the communication between the clearance space 2202, the wiring channel 2201 and the wiring channel 2101, so as to arrange the circuit wiring 102.

[0113] In some embodiments, the insertion main body 2231 is provided with a second insertion hole 2234 communicating with the relief space 2202. When the flexible main body 221 extends into the insertion main body 2231, such as into the relief space 2202, it cooperates with the first insertion hole 2213 to realize the connection between the insertion main body 2231 and the flexible main body 221. For example, when the flexible main body 221 extends into the insertion main body 2231, such as into the relief space 2202, the second insertion hole 2234 communicates with the first insertion hole 2213, facilitating the insertion post 2233 to be inserted into the second insertion hole 2234 and the first insertion hole 2213 to realize the connection between the insertion main body 2231 and the flexible main body 221. It can be understood that the insertion post 2233 can also be a part of the insertion assembly 222. In some embodiments, the insertion post 2233 can be a pin.

[0114] The snap part 2232 can be made of a rigid material, and of course, it can also be made of the same material as the insertion main body 2231. The snap part 2232 can extend from the insertion main body 2231 to the side away from the flexible main body 221, such as the third end 2211.

[0115] The number of the snap parts 2232 can be multiple, and thus they surround the periphery of the relief space 2202.

[0116] The snap part 2232 can extend into the support body 211, such as into the wiring channel 2101, at the first end 2111 of the support body 211 and be inserted and fixed with the support body 211, so that the relief space 2202 communicates with the wiring channel 2101 to realize the arrangement of the circuit trace 102. It can also make at least part of the insertion main body 2231 extend into the support body 211, such as into the wiring channel 2101. Of course, in some embodiments, it can also be that the first end 2111 of the support body 211 extends into the relief space 2202 between the snap parts 2232 and is inserted and fixed with the snap parts 2232. It can also make the first end 2111 of the support body 211 extend into the insertion main body 2231, such as into the relief space 2202.

[0117] In some embodiments, the snap part 2232 is provided with a fixing protrusion 2235 to cooperate with the flexible main body 221, such as the clamping hole 2113. For example, when the snap part 2232 is inserted and fixed with the support body 211, the fixing protrusion 2235 is located in the clamping hole 2113. It can be understood that when the snap part 2232 is inserted and fixed with the support body 211, the snap part 2232 can be elastically deformed under force so that the fixing protrusion 2235 is placed in the clamping hole 2113 and is clamped in the clamping hole 2113 under the restoring force generated by the elastic deformation of the snap part 2232.

[0118] In some embodiments, a limiting protrusion 2236 is provided on the snap portion 2232 to cooperate with the flexible body 221, such as the limiting notch 2114. For example, the limiting protrusion 2236 can be placed within the limiting notch 2114 to cooperate with the snap portion 2232 and the flexible body 221 for insertion and fixation.

[0119] In some embodiments, the limiting protrusion 2236 can be provided at the portion where the snap portion 2232 is connected to the bracket body 211.

[0120] Please refer to Figure 10 、 Figure 11 and Figure 12 , Figure 10 which is Figure 6 a schematic structural view of the flexible member 22 in some other embodiments of the illustrated embodiment, Figure 11 and Figure 10 an exploded view of the flexible member 22 in an embodiment of the illustrated embodiment, Figure 12 and Figure 10 a cross-sectional view of the flexible member 22 along line XII - XII of the illustrated embodiment. The plug-in assembly 222 may further include a fastening member 224 placed within the plug-in body 2231, such as the relief space 2202, and a limiting member 225 that cooperates with the fastening member 224.

[0121] The fastening member 224 and the limiting member 225 cooperate to clamp and fix the flexible body 221. The fastening member 224 is used to connect to the plug-in body 2231 so that the flexible body 221 is connected to the plug-in body 2231 through the fastening member 224 and the limiting member 225.

[0122] The fastening member 224 may have a structure similar to the combination of the plug-in body 2231 and the snap portion 2232. The fastening member 224 can be made of a rigid material or the same material as the plug-in body 2231, the snap portion 2232, etc.

[0123] The fastening member 224 can be a tubular structure with an assembly space 2203 inside to accommodate the limiting member 225 and the flexible body 221, such as the third end 2211.

[0124] The assembly space 2203 of the fastening member 224 can accommodate the flexible body 221, such as the third end 2211, so that the fastening member 224 is sleeved on the third end 2211 of the flexible body 221.

[0125] The clamping member 224 may have the property of elastic deformation. For example, the clamping member 224 may extend into the plug-in body 2231, such as the clearance space 2202, and be squeezed by the plug-in body 2231 to undergo elastic deformation, thereby pressing the flexible body 221 located in the assembly space 2203, and thus causing the flexible body 221 to undergo elastic deformation. In some embodiments, the clamping member 224 undergoes elastic deformation to squeeze the flexible body 221 located between the clamping member 224 and the stopper 225, thereby achieving the clamping of the flexible body 221.

[0126] 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 with the clearance space 2202 , and the circuit wiring 102 is arranged.

[0127] The fastening member 224 may include a fastening body 2241 that can be arranged around the limiting member 225 and an elastic portion 2242 that extends from the fastening body 2241 to one side. There may be at least one elastic portion 2242. The elastic portion 2242 may cooperate with the fastening body 2241 to form an assembly space 2203.

[0128] The elastic part 2242 may be elastically deformed when the clamping member 224 extends into the plug-in body 2231, such as the clearance space 2202. In some embodiments, the elastic part 2242 may cooperate with the plug-in body 2231, such as the second plug-in hole 2234. For example, a clamping part 2243 is provided on the elastic part 2242, so that when the elastic part 2242 can extend into the plug-in body 2231, such as the clearance space 2202, the elastic part 2242 is placed in the plug-in body 2231, such as the second plug-in hole 2234, to achieve clamping and prevent the elastic part 2242 from falling off from the plug-in body 2231. In some embodiments, two symmetrically arranged clamping parts 2243 are provided on the elastic part 2242, and there are also two second plug-in holes 2234, and each clamping part 2243 is placed in one second plug-in hole 2234. In some embodiments, the edge of the second plug hole 2234 is inclined, and specifically can be set at an angle with the plugging direction of the clamping member 224 and the plugging body 2231. Therefore, when the clamping portion 2243 is in the second plug hole 2234, the elastic portion 2242 is forced to move to the side away from the plugging body 2231, so that the clamping portion 2243 slides in the second plug hole 2234, and then the clamping portion 2243 drives the elastic portion 2242 to undergo elastic deformation under the limitation of the second plug hole 2234, so as to better clamp the flexible body 221.

[0129] The stopper 225 cooperates with the clamping member 224 to clamp the flexible body 221. The stopper 225 can be made of a hard material, or can be made of the same material as the plug body 2231, the buckle portion 2232, the clamping member 224, etc. The stopper 225 can be a tubular structure, and a connecting channel 2204 is provided inside to communicate with the plug body 2231, such as the clearance space 2202, the clamping member 224, such as the assembly space 2203, and the flexible body 221, such as the wiring channel 2201, to achieve the arrangement of the circuit wiring 102. Of course, the clamping member 224 can also be other structures.

[0130] 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 clamping member 224, such as the elastic portion 2242, to achieve the clamping of 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.

[0131] In some embodiments, see Figure 13 , Figure 13 for Figure 10 The flexible member 22 in the illustrated embodiment is a cross-sectional view of line XII-XII when it cooperates with the circuit trace 102 in other embodiments. The circuit trace 102 is arranged in the flexible body 221, such as the trace channel 2201, the clamping member 224, and the plug-in body 2231, such as the clearance space 2202, wherein the arrangement of the circuit trace 102 can make the flexible body 221 clamped between the circuit trace 102 and the clamping member 224. That is, the circuit trace 102 plays the role of the limiter 225. It can be understood that in some embodiments, the circuit trace 102 can be referred to as a "limiter". In some embodiments, the circuit trace 102 can be used as a part of the limiter 225, and of course, the limiter 225 is not limited to the circuit trace 102.

[0132] 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, and of course other materials can be added or directly used to achieve a special function such as a flexible effect, a tactile effect, a visual effect, a light effect, etc. Of course, it can also be made of a material with a bendable property.

[0133] 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.

[0134] 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 used to be connected to the fourth end 2212 of the flexible body 221 .

[0135] The rack 231 can be a sheet-like structure and has bendable characteristics. One end of the rack 231 in the extending direction can be connected to the assembly part 232, for example, by welding, snap connection, screw connection, plug connection and other methods.

[0136] Saw teeth 2311 are arranged on the edge of the rack 231 in the extending direction to cooperate with the tension adjustment assembly 50.

[0137] Limiting ribs 2312 are arranged on one side surface of the rack 231 to cooperate with the tension adjustment assembly 50. In some embodiments, the limiting ribs 2312 can be arranged in the extending direction of the rack 231.

[0138] Limiting ribs 2313 are arranged at one end of the rack 231 far from the assembly part 232 to cooperate with the tension adjustment assembly 50 to prevent the rack 231 from slipping off the tension adjustment assembly 50. In some embodiments, the limiting ribs 2313 can be arranged at the edge of one end far from the assembly part 232 and can extend in the extending direction of the edge. In some embodiments, the limiting ribs 2313 can be connected to the limiting ribs 2312. In some embodiments, the limiting ribs 2313 and the limiting ribs 2312 can be located on the same side of the rack 231.

[0139] The assembly part 232 can be made of a rigid material. Of course, it can also be made of the same material as the movable part 2121, the bracket body 211, the rack 231, etc. The assembly part 232 can be a tubular structure. Of course, it can also be other structures.

[0140] The assembly part 232 can be connected to the rack 231. In some embodiments, the assembly part 232 and the rack 231 can be an integral structure.

[0141] The assembly part 232 can be fixed to the flexible part 22, such as the fourth end 2212, by plug connection, welding, snap connection, screw connection and other methods. Of course, in some embodiments, the plug-in main body 2231 and the flexible part 22, such as the flexible main body 221, can be an integral structure. In some embodiments, the assembly part 232 can be omitted, and the rack 231 can be fixed to the flexible part 22, such as the flexible main body 221, by plug connection, welding, snap connection, screw connection and other methods.

[0142] In some embodiments, the assembly part 232 can extend into the flexible main body 221, such as the wire routing channel 2201, and be connected to the flexible main body 221. In some embodiments, the assembly part 232 can be sleeved on the end of the flexible main body 221. In some embodiments, the assembly part 232 is connected to the flexible main body 221 and can communicate the wire routing channel 2201 with the outside.

[0143] In some embodiments, the connection manner between the assembly part 232 and the flexible member 22 may adopt the connection manner between the flexible member 22 and the bracket 21. That is, in some embodiments, the assembly part 232 is provided with clamping holes and limiting notches in the same way as the bracket 21. Specifically, it can be set with reference to the setting manner of the bracket 21, and will not be elaborated here. The fourth end 2212 of the flexible member 22 is connected to the plug-in component in the same way as the third end 2211, so as to be connected to the assembly part 232 through the plug-in component. Specifically, it can be set with reference to the setting manner of the flexible member 22 at the third end 2211, and will not be elaborated here.

[0144] Please refer to Figure 14 and Figure 15 , Figure 14 which is Figure 5 a schematic structural diagram of the flexible member 22 and the cross-linking member 23 in cooperation in some embodiments, Figure 15 and Figure 14 a schematic cross-sectional diagram of the flexible member 22 and the cross-linking member 23 in cooperation in some embodiments. The assembly part 232 may include a first clamping member 2321 connected to the rack 231 and a second clamping member 2322 that buckles with the first clamping member 2321 to clamp the flexible member 22.

[0145] The first clamping member 2321 may include a clamping main 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 main body 2323.

[0146] The clamping main body 2323 may be connected to the second clamping member 2322 by means of screwing, clamping, etc. The abutting plate 2324 may be bent from the clamping main body 2323 to the side of the second clamping member 2322 and may be connected to the rack 231. In some embodiments, the abutting plate 2324 may abut against the fourth end 2212 of the flexible member 22. In some embodiments, a wire routing hole 2325 may be provided on the abutting plate 2324 to communicate with the wire routing channel 2201 of the flexible member 22, so as to realize the threading of the circuit wire 102.

[0147] The second clamping member 2322 is provided with a clamping protrusion 2326 on the surface facing the first clamping member 2321, such as one side of the clamping body 2323, so as to increase the frictional force between the second clamping member 2322 and the flexible member 22 and achieve a firm connection between the second clamping member 2322 and the flexible member 22. In some embodiments, the clamping protrusion 2326 is a pyramid or a cone. In some embodiments, the clamping protrusion 2326 is a pyramid or a cone. In some embodiments, in order to cooperate with the clamping protrusion 2326, the surface of the flexible member 22, such as the flexible body 221, is provided with a clamping groove 2214 to make way for the clamping 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 clamping protrusion 2326 is located in the clamping groove 2214, realizing the clamping of the flexible member 22.

[0148] Please refer to again Figure 5 , the second tie strap 30 can be arranged opposite to the first tie strap 20, and its specific structure is also similar to that of the first tie strap 20. For example, it can also include a bracket 31 connected to the wearing assembly 10, such as the main body housing 11, a flexible member 32 connected to the bracket 31 and extending towards the headrest assembly 40, and a cross-linking member 33 connected to the flexible member 32 and extending into the headrest assembly 40. Therefore, the cooperation relationship among the bracket 31, the flexible member 32 and the cross-linking member 33 in the second tie strap 30 can refer to the introduction of the structure in the first tie strap 20 and will not be elaborated here.

[0149] In some embodiments, the second tie strap 30 and the first tie strap 20 can be symmetrically arranged. Here, the differences between the second tie strap 30 and the first tie strap 20 will be introduced.

[0150] The rack 331 on the second tie strap 30 can be arranged opposite to the saw teeth 231 on the first tie strap 20. For example, the saw teeth 3311 on the rack 331 are arranged on the side facing the first tie strap 20. For example, the saw teeth 2311 on the rack 231 are arranged on the side facing the second tie strap 30. For example, the limiting rib 3312 and the limiting rib 3313 on the rack 331 and the limiting rib 2312 and the limiting rib 2313 on the rack 231 are located on the same side.

[0151] The rack 331 on the second tie strap 30 and the rack 231 on the first tie strap 20 can be cross-linked together through a tension adjustment assembly 50. It can be understood that the cross-linked length of the first tie strap 20 and the second tie strap 30 can be adjusted to realize the adjustment of the wearing tightness of the head-mounted device 100.

[0152] Please refer to Figure 16 , Figure 16 For Figure 1Schematic structural diagram of the wearing component 10 cooperating with the brackets 21 and 31 in some embodiments. The connecting component 212 in the bracket 21 can extend into the installation space 1201 and be fixedly connected to other structures of the first fastening shell 121 and / or the main body shell 11. The second fastening shell 122 is fastened to the first fastening shell 121 to clamp the brackets 21 and 31, so that the decorative member 12 can rotate relative to the brackets 21 and 31. Therefore, in some embodiments, the decorative member 12 can be rotatably connected to the brackets 21 and 31. For example, the first fastening shell 121 is fastened to the second fastening shell 122 to clamp the brackets 21 and 31, realizing that the decorative member 12 can be rotatably connected to the brackets 21 and 31.

[0153] It can be understood that in the first lacing 20, the flexible member 22 and / or the crosslinking member 23 can form a bendable portion. In the second lacing 30, the flexible member 32 and / or the crosslinking member 33 can form a bendable portion.

[0154] Please refer to Figure 1 、 Figure 2 and Figure 17 , Figure 17 is Figure 1 Schematic structural diagram of the headrest component 40 cooperating with the force-bearing component 60 in [reference]. The headrest component 40 can be used to contact the user's head, or can indirectly contact the user's head through the force-bearing component 60. The headrest component 40 can be a shell-like structure, and its interior can be used to accommodate at least part of the crosslinked part of the first lacing 20 and the second lacing 30 and the tension adjustment component 50.

[0155] The headrest component 40 can include a main shell 41, and a first mounting frame 42 and a second mounting frame 43 that are oppositely arranged and connected to the main shell 41. The main shell 41 is oppositely arranged to the wearing component 10, such as the main body shell 11. The first mounting frame 42 is slidably connected to the first lacing 20 and can slide out of or into the main shell 41 through the first mounting frame 42. The second mounting frame 43 is slidably connected to the second lacing 30 and can slide out of or into the main shell 41 through the second mounting frame 43.

[0156] The main shell 41 can be made of at least a rigid material. Of course, other materials can also be added or directly used to achieve certain special functions, such as flexible effects, tactile effects, visual effects, light effects, etc.

[0157] Please refer to Figure 17 、 Figure 18 、 Figure 19 and Figure 20 , Figure 18 is Figure 17 Schematic structural diagram of the headrest component 40 cooperating with the force-bearing component 60 from another perspective in [reference], Figure 19 isFigure 17 Schematic diagram of at least part of the structure of the headrest assembly 40 shown in some embodiments Figure 20 is Figure 19 Schematic diagram of at least part of the structure of the headrest assembly 40 shown in another embodiment. The main housing 41 has a housing-like structure and can serve as the outer contour of the headrest assembly 40 and can be used to mount the force-bearing assembly 60. The accommodation space 401 of the main housing 41 can be used to mount electronic components such as batteries and sensors that can be connected to the circuit trace 102. It can be understood that the circuit trace 102 can extend into the accommodation space 401.

[0158] The accommodation space 401 of the main housing 41 can also be used to accommodate the cross-linked part of the first tie 20 and the second tie 30 and at least part of the tension adjustment assembly 50.

[0159] A ratchet 411 is provided on one side of the main housing 41 away from the force-bearing assembly 60. The ratchet 411 can be in an annular shape. Inner teeth 4111 are provided on the inner wall of the ratchet 411.

[0160] A central hole 412 communicating with the accommodation space 401 is provided on the main housing 41. The central hole 412 is coaxially arranged with the ratchet 411 to cooperate with the tension adjustment assembly 50.

[0161] A support wall 413 is provided around the central hole 412 of the main housing 41 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 the side away from the force-bearing assembly 60. In some embodiments, the support wall 413 can be omitted.

[0162] An adaptation groove 414 is provided around the ratchet 411 of the main housing 41 to make way for the tension adjustment assembly 50.

[0163] Please refer to Figure 21 、 Figure 22 and Figure 23 , Figure 21 is Figure 1 Schematic diagram of the cooperation of the first tie 20, the second tie 30 and the headrest assembly 40 shown in some embodiments Figure 22 is Figure 21 Schematic diagram of the cooperation of the first tie 20 and the first mounting bracket 42 in the shown embodiment Figure 23 is Figure 21 Cross-sectional view along line XXIII-XXIII when the first tie 20 cooperates with the first mounting bracket 42 in the shown embodiment. The first mounting bracket 42 can be made of at least a rigid material. Of course, other materials can also be added or directly used to achieve certain special functions such as flexible effect, tactile effect, visual effect, light effect, etc. The first mounting bracket 42 can also be made of the same material as the main housing 41, the bracket 21, etc.

[0164] 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.

[0165] The first assembly frame 42 can be connected to the main housing 41 by bonding, welding, screwing, clamping, etc. In some embodiments, the first assembly frame 42 can be an integral structure with the main housing 41.

[0166] The first assembly frame 42 is provided with a sliding through hole 402 in the extension direction, which is connected to the main shell 41, such as the accommodation space 401, to accommodate the first tether 20, such as the bracket 21, the flexible member 22, etc., so that the first tether 20, such as the bracket 21, the flexible member 22, slides in 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 can be understood 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, such as the sliding through hole 402, to achieve the effect that the first assembly frame 42 and the bracket 21 cooperate to support the wearing component 10 and the headrest component 40, thereby allowing the first assembly frame 42 to be a part of the first tether 20.

[0167] Please refer again Figure 21 , Figure 22 and Figure 23 The second assembly rack 43 can be arranged opposite to the first assembly rack 42, and the specific structure can also be similar to the structure of the first assembly rack 42. The specific structural setting of the second assembly rack 43 can refer to the structural setting of the first assembly rack 42. In addition, the matching relationship between the second assembly rack 43 and the second tether 30 can refer to the introduction of the matching relationship between the first assembly rack 42 and the first tether 20, which will not be repeated.

[0168] 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.

[0169] 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 an augmented reality or virtual reality environment, improving the user experience, and also realizing massage of the user's neck to relax the user without fatigue, and also realizing information detection such as respiratory rate, pulse rate, blood pressure or blood oxygen saturation to protect the user's health.

[0170] The functional component 44 may include a first sub-functional component 441 and a second sub-functional component 442 arranged side by side. The first sub-functional component 441 and the second sub-functional component 442 are in contact with the user and cooperate with each other.

[0171] Please refer to Figure 18 and Figure 24 , Figure 24 which is Figure 18 a schematic structural diagram of the functional component 44 shown. The first sub-functional component 441 may include an extension housing 4411 connected to the main housing 41, a flexible bracket 4412 disposed on the side of the extension housing 4411 facing the wearing component 10, and a functional member 4413 disposed on the flexible bracket 4412.

[0172] The extension housing 4411 may extend downward from the main housing 41.

[0173] The flexible bracket 4412 may be made of a rigid material and may have bendable and deformable characteristics. One end of the flexible bracket 4412 is connected to the extension housing 4411, for example, by bonding, welding, screwing, clamping or other means. In some embodiments, the flexible bracket 4412 may include a deformation portion 4414 disposed on the extension housing 4411 and a contact portion 4415 disposed on the deformation portion 4414.

[0174] The deformation portion 4414 may have a columnar structure and has deformable characteristics to make the user feel comfortable when the flexible bracket 4412 contacts the user's neck. One end of the deformation portion 4414 in the extending direction is connected to the extension housing 4411, and the other end is connected to the contact portion 4415. Of course, the deformation portion 4414 is not limited to a columnar structure and may also be other structures.

[0175] The contact portion 4415 is connected to the deformation portion 4414.

[0176] The contact portion 4415 may be used to contact the user's neck. In some embodiments, the contact portion 4415 may be made of the same material as the deformation portion 4414.

[0177] 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 can also be used. 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 sticking.

[0178] The functional part 4413 can be passed through the flexible bracket 4412 and the extension shell 4411 through the circuit wiring 102, and then extend into the accommodating space 401 of the main shell 41, and then can be connected to the control circuit, and finally connected to the processor 103, so as to control the functional part 4413 through the processor 103, or receive the detection data transmitted by the functional part 4413 or perform data processing. In some embodiments, in the scenario where the contact part 4415 can realize the contact between the functional part 4413 and the user, the deformation part 4414 can be omitted, and the extension shell 4411 can also be omitted, and only the contact part 4415 is connected to the main shell 41 through the circuit wiring 102.

[0179] In some embodiments, the functional part 4413 may include an electrode for contacting the user's neck skin, so as to apply a pulse current to the user's neck through the electrode. In some scenarios, the pulse current transmitted by the electrode can cause muscle contraction or relaxation, so that the user feels vibration, hammering, knocking, kneading, etc., to simulate the effect of mechanical force on the person and give the person a sense of touch. In some scenarios, the pulse current transmitted by the electrode can effectively stimulate human muscle movement, tighten the skin, promote capillary microcirculation, and relieve muscle fatigue, ultimately achieving a massage effect.

[0180] See also Figure 25 , Figure 25 for Figure 24 The functional part 4413 in the illustrated embodiment is a schematic diagram of the structure when cooperating with the processor 103 in other embodiments. The functional part 4413 may include a light generator 4416 and a photoelectric sensor 4417 connected to the processor 103. The light generator 4416 may be used to emit light, and may emit light under the control of the processor 103. When the light generator 4416 contacts the neck of the user, the light may illuminate the neck of the user. The photoelectric sensor 4417 may be used to receive reflected light after passing through the neck of the user.

[0181] Specifically, the user's neck skin absorbs and reflects light, causing the reflected light to be received by the photoelectric sensor 4417. Further, the photoelectric sensor 4417 converts the optical signal into an electrical signal and transmits it to the processor 103. Subsequently, the processor 103 can determine changes such as the respiration rate, pulse rate, blood pressure, or blood oxygen saturation of the user's body based on the reflected light received by the photoelectric sensor 4417 to ensure the user's health status.

[0182] In some scenarios, when the user wears the head-mounted device 100, the functional component 4413 can come into contact with the user's neck simultaneously. The processor 103 controls the light generator 4416 to emit light towards the user's neck. After the light is absorbed by the human blood and tissues at the user's neck, part of it is reflected. The photoelectric sensor 4417 can receive the reflected light that has passed through the user's body. Subsequently, the processor 103 can determine changes such as the respiration 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.

[0183] Please refer back to Figure 18 and Figure 24 , the second sub-functional component 442 can be arranged side by side with the first sub-functional component 441, and 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. Additionally, the cooperation relationship between the second sub-functional component 442 and the main housing 41 can refer to the introduction of the cooperation relationship between the first sub-functional component 441 and the main housing 41, which will not be elaborated here.

[0184] In some embodiments, the functional component 4413 of the first sub-functional component 441 can include electrodes, and the functional component 4413 of the second sub-functional component 442 can include a light generator 4416 and a photoelectric sensor 4417. In some embodiments, the first sub-functional component 441 or the second sub-functional component 442 can be omitted.

[0185] Please refer to Figure 17 and Figure 26 , Figure 26 is Figure 17 a schematic structural diagram of the cooperation between the tightening adjustment component 50 and the main housing 41 in some embodiments shown. The tightening adjustment component 50 is partially arranged within the accommodation space 401 of the main housing 41 and partially located outside the accommodation space 401. The tightening adjustment component 50 can be fixed to the main housing 41 and can be connected to the first tie 20 and the second tie 30, enabling the cross-linking arrangement of the first tie 20 and the second tie 30 and enabling the adjustment of the cross-linking length between the first tie 20 and the second tie 30.

[0186] Please refer to 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 component 50 shown in another perspective. The tension adjustment component 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 position of the first strap 20 and the second strap 30 to ensure the stability of the tightness of the head-mounted device 100.

[0187] The adjustment mechanism housing 51 may include a first housing 511 and a second housing 512 snap-fitted with the first housing 511. The first housing 511 and the second housing 512 sandwich the first strap 20 and the second strap 30. The first housing 511 and the second housing 512 cooperate to mount the knob mechanism 52.

[0188] The first shell 511 can be made of a hard material. The first shell 511 can be a sheet-like structure as a whole, and can also 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.

[0189] The first housing 511 may include a housing body 5111. The housing body 5111 is provided with a receiving groove 5112 on a side facing the main housing 41 to cooperate with the knob mechanism 52. The receiving groove 5112 is provided on the housing body 5111 at a position opposite to the central hole 412. The receiving groove 5112 is recessed from the surface of the housing body 5111 to a side away from the main housing 41. In some embodiments, the receiving groove 5112 may be omitted.

[0190] The housing body 5111 is provided with a mounting shaft 5113 coaxially arranged with the central hole 412 in the receiving groove 5112 to mount the knob mechanism 52. In some embodiments, the mounting shaft 5113 can be omitted or replaced by a through hole.

[0191] A first mounting groove 5114 and a second mounting groove 5115 are provided on the housing body 5111. Both the first mounting groove 5114 and the second mounting groove 5115 are 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.

[0192] The first mounting groove 5114 can be used to accommodate the first lacing 20, such as the rack 231. The first mounting groove 5114 can cooperate with the second housing 512 to accommodate the first lacing 20, such as the rack 231, so that the first lacing 20, such as the rack 231, slides within the first mounting groove 5114. The first mounting groove 5114 can be extended and provided towards the edge of the housing body 5111 in the extending direction.

[0193] The first mounting groove 5114 can communicate with the receiving groove 5112. In some embodiments, the depth of the first mounting groove 5114 recessed from the surface of the housing body 5111 on the side facing the main housing 41 towards the side away from the main housing 41 is smaller than the depth of the receiving groove 5112 recessed from the surface of the housing body 5111 on the side facing the main housing 41 towards the side away from the main housing 41, so as to improve the cooperation effect between the first lacing 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 on the side facing the main housing 41 towards the side away from the main housing 41 is the same as the depth of the receiving groove 5112 recessed from the surface of the housing body 5111 on the side facing the main housing 41 towards 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.

[0194] The housing body 5111 can be provided with ribs 5116 within the first mounting groove 5114 to contact the first lacing 20, reduce the contact area between the first lacing 20 and the housing body 5111, and thereby reduce the frictional force between the first lacing 20 and the housing body 5111. In some embodiments, the ribs 5116 are extended and provided in the extending direction of the first mounting groove 5114.

[0195] The second mounting groove 5115 can be used to accommodate the second lacing 30, such as the rack 331. The second mounting groove 5115 can cooperate with the second housing 512 to accommodate the second lacing 30, such as the rack 331, so that the second lacing 30, such as the rack 331, slides within the second mounting groove 5115. The second mounting groove 5115 can be extended and provided towards the edge of the housing body 5111 in the extending direction.

[0196] The second installation groove 5115 can communicate with the accommodation groove 5112. In some embodiments, the depth of the second installation groove 5115 recessed from the surface of the housing body 5111 facing the main housing 41 towards the side away from the main housing 41 is smaller than the depth of the accommodation groove 5112 recessed from the surface of the housing body 5111 facing the main housing 41 towards the side away from the main housing 41, so as to improve the cooperation effect between the second tie belt 30 and the knob mechanism 52. In some embodiments, the depth of the second installation groove 5115 recessed from the surface of the housing body 5111 facing the main housing 41 towards the side away from the main housing 41 is the same as the depth of the accommodation groove 5112 recessed from the surface of the housing body 5111 facing the main housing 41 towards the side away from the main housing 41. In some embodiments, when the accommodation groove 5112 is omitted, the second installation groove 5115 can also be omitted.

[0197] The housing body 5111 can be provided with a rib 5117 in the second installation groove 5115 to contact the second tie belt 30, reducing the contact area between the second tie belt 30 and the housing body 5111, and further reducing the friction between the second tie belt 30 and the housing body 5111. In some embodiments, the rib 5117 extends in the extending direction of the second installation groove 5115.

[0198] The second housing 512 can be made of a rigid material, and of course, it can also be made of the same material as the first housing 511.

[0199] The second housing 512 can be in an overall sheet-like structure, and of course, it can also be in other shapes such as a frame structure or a housing-like structure. The second housing 512 can be directly or indirectly installed on the headrest assembly 40, such as the main housing 41.

[0200] The second housing 512 can include a housing body 5121. The housing body 5121 can be placed between the first housing 511, such as the housing body 5111, and the main housing 41. The housing body 5121 can be connected to the first housing 511, such as the housing body 5111, by means of snap connection, screw connection, welding, bonding, etc. The housing body 5121 can be connected to the main housing 41, such as by means of snap connection, screw connection, welding, bonding, etc.

[0201] A relief groove 5122 is provided on the side of the housing body 5121 away from the main housing 41 to cooperate with the knob mechanism 52. The relief groove 5122 is provided at a position on the housing body 5111 opposite to the central hole 412. The relief groove 5122 is recessed from the surface of the housing body 5111 towards the side close to the main housing 41. In some embodiments, the relief groove 5122 can be omitted.

[0202] A relief hole 5123 coaxial with the central hole 412 is provided in the relief groove 5122 of the housing body 5121 to install the knob mechanism 52.

[0203] A first assembly groove 5124 and a second assembly groove 5125 are provided on the housing body 5121. Both the first assembly groove 5124 and the second assembly groove 5125 are located on the side of the housing body 5121 away from the main housing 41. The first assembly groove 5124 and the second assembly groove 5125 may be located on opposite sides of the relief hole 5123.

[0204] When the housing body 5121 is connected to the first housing 511, such as the housing main body 5111, the first assembly groove 5124 can cooperate with the first installation groove 5114 to form a channel for accommodating the first lace 20, such as the rack 231. This allows the first lace 20, such as the rack 231, to slide within the channel. The first assembly groove 5124 may extend towards the edge of the housing body 5121 in the extending direction.

[0205] The first assembly groove 5124 may communicate with the relief groove 5122. In some embodiments, the depth of the first assembly groove 5124 recessed from the surface of the housing body 5121 on the side away from the main housing 41 towards the side close to the main housing 41 is smaller than the depth of the relief groove 5122 recessed from the surface of the housing body 5121 on the side away from the main housing 41 towards the side close to the main housing 41, so as to improve the cooperation effect between the first lace 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 on the side away from the main housing 41 towards the side close to the main housing 41 is the same as the depth of the relief groove 5122 recessed from the surface of the housing body 5121 on the side away from the main housing 41 towards the side close to the main housing 41.

[0206] In some embodiments, when the relief groove 5122 is omitted, the first assembly groove 5124 may also be omitted. In some embodiments, the first installation groove 5114 or the first assembly groove 5124 is omitted.

[0207] The housing body 5121 may be provided with a limit groove 5126 in the first assembly groove 5124 to accommodate the limiting rib 2312 of the first lace 20, such as the rack 231, so as to achieve the cooperation and limitation between the housing body 5121 and the first lace 20. In some embodiments, the limit groove 5126 extends in the extending direction of the first assembly groove 5124, so that the limiting rib 2312 of the first lace 20, such as the rack 231, slides within the limit groove 5126.

[0208] When the housing body 5121 is connected to the first housing 511, such as the housing main body 5111, the second assembly groove 5125 can cooperate with the second installation groove 5115 to form a channel for accommodating the second lace 30, such as the rack 331. This allows the second lace 30, such as the rack 331, to slide within the channel. The second assembly groove 5125 may extend towards the edge of the housing body 5121 in the extending direction.

[0209] The second assembly groove 5125 can communicate with the relief groove 5122. In some embodiments, the depth of the second assembly groove 5125 recessed from the surface of the housing body 5121 on the side away from the main housing 41 towards the side close to the main housing 41 is smaller than the depth of the relief groove 5122 recessed from the surface of the housing body 5121 on the side away from the main housing 41 towards the side close to the main housing 41, so as to improve the matching effect between the first lace 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 on the side away from the main housing 41 towards the side close to the main housing 41 is the same as the depth of the relief groove 5122 recessed from the surface of the housing body 5121 on the side away from the main housing 41 towards the side close to the main housing 41.

[0210] In some embodiments, when the relief 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.

[0211] The housing body 5121 can be provided with a limiting groove 5127 in the second assembly groove 5125 to accommodate the limiting rib 3312 of the second lace 30, such as the rack 331, so as to realize the limiting cooperation between the housing body 5121 and the second lace 30. In some embodiments, the limiting groove 5127 extends in the extending direction of the second assembly groove 5125, so that the limiting rib 3312 of the second lace 30, such as the rack 331, slides in the limiting groove 5127.

[0212] In some embodiments, the housing body 5121 and the main housing 41 are of an integral structure. That is, the structures on the housing body 5121 that cooperate with the first housing 511, such as the housing main body 5111 and the lace assembly 200, are provided on the main housing 41. Furthermore, the housing body 5121 is connected to the main housing 41 to cooperate with the first lace 20, the second lace 30 and the knob mechanism 52. At the same time, the housing body 5121 can be omitted. That is to say, in some embodiments, the main housing 41 can be a part of the adjustment mechanism housing 51. Further, in some embodiments, the relief hole 5123 and the central hole 412 are the same structure.

[0213] The knob mechanism 52 can extend into the space between the first housing 511 and the second housing 512, and can also extend out of the accommodation space 401 of the main housing 41. The knob mechanism 52 can include an adjustment wheel 521 provided on the adjustment mechanism housing 51 and extending out of the main housing 41, such as the accommodation space 401, and a rotating disk 522 provided outside the main housing 41, such as the accommodation space 401, and connected to the adjustment wheel 521.

[0214] The adjustment wheel 521 can include a gear main body 5211 placed in the adjustment mechanism housing 51 and a connecting shaft 5212 coaxially arranged with the gear main body 5211 and connecting the gear main body 5211 and the rotating disk 522.

[0215] The gear body 5211 can be clamped 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 jack 5213 is provided on one side of the gear body 5211 away from the connecting shaft 5212 to accommodate the mounting shaft 5113. Further, through the cooperation of the jack 5213 and the mounting shaft 5113, the rotational connection between the gear body 5211 and the first housing 511 is realized. In some embodiments, the gear body 5211 can be located between the first lacing 20, such as the rack 231, and the second lacing 30, such as the rack 331, and can be meshed with the teeth 2311 of the first lacing 20, such as the rack 231 (meshing connection, or meshing drive connection), and can be meshed with the teeth 3311 of the second lacing 30, such as the rack 331. In some scenarios, the gear body 5211 rotates around the mounting shaft 5113, thereby realizing the adjustment of the cross-linking length between the first lacing 20, such as the rack 231, and the second lacing 30, such as the rack 331.

[0216] In some embodiments, the gear body 5211 can be partially located in the receiving groove 5112 to improve the cooperation effect between the first lacing 20, such as the rack 231, and the second lacing 30, such as the rack 331, and the gear body 5211 respectively. In some embodiments, the gear body 5211 can be partially located in the relief groove 5122 to improve the cooperation effect between the first lacing 20, such as the rack 231, and the second lacing 30, such as the rack 331, and the gear body 5211 respectively. In some embodiments, the gear body 5211 can be partially located in the first mounting groove 5114 and the second assembly groove 5125 to improve the cooperation effect between the first lacing 20, such as the rack 231, and the second lacing 30, such as the rack 331, and the gear body 5211 respectively. In some embodiments, the gear body 5211 can be partially located in the first assembly groove 5124 and the second mounting groove 5115 to improve the cooperation effect between the first lacing 20, such as the rack 231, and the second lacing 30, such as the rack 331, and the gear body 5211 respectively.

[0217] In some embodiments, when the mounting shaft 5113 is replaced by a perforation, a rotating shaft can be provided at the position where the gear body 5211 is provided with the jack 5213, so that the rotating shaft passes through the perforation replacing the mounting shaft 5113.

[0218] The connecting shaft 5212 can be fixedly connected to the gear body 5211. In some embodiments, the connecting shaft 5212 can pass through the relief hole 5123 to be fixedly connected to the gear body 5211 by means of clamping, bonding, screwing, welding, etc. In some embodiments, the connecting shaft 5212 and the gear body 5211 are of an integral structure. In some embodiments, the connecting shaft 5212 can pass through the relief 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 pass through the central hole 412 to extend out of the main housing 41, such as the accommodation space 401, and be rotatably connected to the rotating disk 522. In some embodiments, the connecting shaft 5212 can pass through the central hole 412 to be rotatably connected to the main housing 41.

[0219] In some embodiments, the outer peripheral surface of the connecting shaft 5212 can be polygonal or irregular in shape to be clamped with the ratchet and pawl mechanism 53, so as to drive the ratchet and pawl mechanism 53 to rotate through the connecting shaft 5212. In some embodiments, at least the outer peripheral surface of the connecting shaft 5212 at the part cooperating with the ratchet and pawl mechanism 53 can be polygonal or irregular in shape.

[0220] The rotating disk 522 can be of a housing-like structure, a plate-like structure or a sheet-like structure. Of course, it can also be of other structures. The rotating disk 522 can include a rotating disk main body 5221 rotatably connected to the connecting shaft 5212 and cooperating with the ratchet and pawl mechanism 53, and a side wall 5222 extending from the edge of the rotating disk main body 5221 towards the main housing 41.

[0221] The rotating disk main body 5221 can be of a plate-like structure or a sheet-like structure. The rotating disk main 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 rotating disk main body 5221 facing the main housing 41 to be connected to the ratchet and pawl mechanism 53 and drive the ratchet and pawl mechanism 53 to rotate.

[0222] The side wall 5222 can extend from the edge of the rotating disk main body 5221 towards the main housing 41 to extend into the fitting groove 414 to shield the components inside the ratchet 411.

[0223] Please refer to Figure 29 and Figure 30 , Figure 29 is Figure 28 an exploded view of some structures of the ratchet and pawl mechanism 53 in the illustrated embodiment. Figure 30 is Figure 28 a schematic structural diagram of the ratchet and pawl mechanism 53 cooperating with the main housing 41 in some embodiments of the illustrated embodiment. The ratchet and pawl mechanism 53 can include a ratchet 411 formed on the main housing 41 and a pawl assembly 530 cooperating with the ratchet 411 and received in the ratchet 411.

[0224] The pawl assembly 530 may include a carrier plate 531 disposed within the ratchet wheel 411, and a first pawl 532, a second pawl 533, a first elastic member 534, and a second elastic member 535 provided on the carrier plate 531.

[0225] The carrier plate 531 may be a circular sheet-like structure. The carrier plate 531 may include a carrier body 5311. A clamping hole 5312 is provided in the middle of the carrier body 5311 to pass through the support wall 413 and the connecting shaft 5212, so as to realize the rotational connection with the support wall 413.

[0226] A clamping frame 5313 is provided on the side of the carrier body 5311 facing away from the main housing 41. The clamping frame 5313 may surround the clamping hole 5312 to pass through the connecting shaft 5212, so as to be clamped and fixed to the connecting shaft 5212. For example, it is clamped and fixed to the outer peripheral surface (polygonal or irregular shape) of the connecting shaft 5212.

[0227] A first assembly shaft 5314 and a second assembly shaft 5315 are provided on the side of the carrier body 5311 facing away from the main housing 41, so as to install the first pawl 532 through the first assembly shaft 5314 and install the second pawl 533 through the second assembly shaft 5315.

[0228] In some embodiments, the first assembly shaft 5314 and the second assembly shaft 5315 may be centrosymmetric about the center of the clamping hole 5312.

[0229] 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 as to install the first elastic member 534 through the first mounting frame 5316 and install the second elastic member 535 through the second mounting frame 5317.

[0230] In some embodiments, the first mounting frame 5316 and the second mounting frame 5317 may be centrosymmetric about the center of the clamping hole 5312. In some embodiments, the distance between the first mounting frame 5316 and the clamping hole 5312 is smaller than the distance between the first assembly shaft 5314 and the clamping hole 5312. In some embodiments, the distance between the second mounting frame 5317 and the clamping hole 5312 is smaller than the distance between the second assembly shaft 5315 and the clamping hole 5312.

[0231] The first pawl 532 is pivotally mounted on the first assembly shaft 5314 of the carrier body 5311 and can rotate around the first assembly shaft 5314. In some embodiments, a pivot hole 5321 is provided on the first pawl 532 to pivotally connect to the first assembly shaft 5314, realizing the 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 rotationally connected by means such as screwing or clamping. In some embodiments, the pivot hole 5321 can be provided at one end of the first pawl 532.

[0232] The first pawl 532 has an abutting portion 5322 that cooperates with the ratchet wheel 411, such as the internal teeth 4111. In some embodiments, the abutting portion 5322 is an edge, so that when the first pawl 532 rotates around the first assembly shaft 5314, the abutting portion 5322 moves away from the side of the latching hole 5312 and is fixedly engaged with the ratchet wheel 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 abutting portion 5322 can be provided at the other end of the first pawl 532.

[0233] The first pawl 532 can be located between the carrier body 5311 and the turntable body 5221 to cooperate with the rotating disc 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.

[0234] The movable slot 5323 has an inner wall surface 5324 located on the side of the first protrusion 5223 away from the abutting portion 5322, and an outer wall surface 5325 located on the side of the first protrusion 5223 close to the abutting portion 5322. The inner wall surface 5324 and the outer wall surface 5325 can be arranged opposite to each other 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 so that the first protrusion 5223 can 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 not to contact the inner wall surface 5324 and the outer wall surface 5325. In some scenarios, the first protrusion 5223 is accommodated in the movable slot 5323. When the first protrusion 5223 rotates around the engaging hole 5312, the first protrusion 5223 can contact the inner wall surface 5324, thereby driving the first pawl 532 to move towards the engaging hole 5312 side around the pivot hole 5321, causing the abutting portion 5322 to disengage from the ratchet wheel 411, such as the internal teeth 4111, and then driving the carrier plate 531 and the adjusting wheel 521 to rotate, reducing the cross-linking length of the first lacing 20 and the second lacing 30, reducing the head circumference of the head-mounted device 100, and making the head-mounted device 100 looser. In some scenarios, the first protrusion 5223 is accommodated in the movable slot 5323. When the first protrusion 5223 rotates around the engaging hole 5312, the first protrusion 5223 can contact the outer wall surface 5325, thereby driving the first pawl 532 to move away from the engaging hole 5312 side around the pivot hole 5321, causing the abutting portion 5322 to relatively slide with the ratchet wheel 411, such as the internal teeth 4111, and then driving the carrier plate 531 and the adjusting wheel 521 to rotate, increasing the cross-linking length of the first lacing 20 and the second lacing 30, increasing the head circumference of the head-mounted device 100, and making the head-mounted device 100 tighter.

[0235] The second pawl 533 and the first pawl 532 can be centrosymmetric with respect to the center of the engaging hole 5312. Of course, the position can also be adjusted as needed.

[0236] The second pawl 533 is pivotally mounted on the second mounting shaft 5315 on the carrier body 5311 and can rotate around the second mounting shaft 5315. In some embodiments, a pivot hole 5331 is provided on the second pawl 533 to pivotally connect to the second mounting shaft 5315, realizing the rotational connection between the second pawl 533 and the second mounting shaft 5315. In some embodiments, the second pawl 533 and the second mounting shaft 5315 can be rotationally connected by screwing, clamping, etc. In some embodiments, the pivot hole 5331 can be provided at one end of the second pawl 533.

[0237] The second pawl 533 has an abutting portion 5332 that mates with a ratchet wheel 411, such as internal teeth 4111. In some embodiments, the abutting portion 5332 is an edge, so that when the second pawl 533 rotates around the second assembly axis 5315, the abutting portion 5332 moves away from the side of the clamping hole 5312 and is clamped and fitted with the ratchet wheel 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 abutting portion 5332 can be provided at the other end of the second pawl 533.

[0238] The second pawl 533 can be located between the bearing 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.

[0239] The movable groove 5333 has an inner wall surface 5334 on the side of the second protrusion 5224 away from the abutting portion 5332 and an outer wall surface 5335 on the side of the second protrusion 5224 close to the abutting portion 5332. The inner wall surface 5334 and the outer wall surface 5335 can be arranged opposite to each other 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 arranged at intervals so that the second protrusion 5224 moves between the inner wall surface 5334 and the outer wall surface 5335, thereby realizing the contact of the second protrusion 5224 with the inner wall surface 5334 and / or the outer wall surface 5335, or the non-contact with both the inner wall surface 5334 and the outer wall surface 5335. In some scenarios, when the second protrusion 5224 is accommodated in the movable groove 5333 and rotates around the clamping hole 5312, the second protrusion 5224 can contact the inner wall surface 5334, thereby driving the second pawl 533 to move towards the side of the clamping hole 5312 around the pivot hole 5331, so that the abutting portion 5332 is disengaged from the clamping and fitting with the ratchet wheel 411, such as the internal teeth 4111, and further driving the bearing plate 531 and the adjusting wheel 521 to rotate, reducing the cross-linking length of the first lacing 20 and the second lacing 30, reducing the head circumference of the head-mounted device 100, and making the head-mounted device 100 loose. In some scenarios, when the second protrusion 5224 is accommodated in the movable groove 5333 and rotates around the clamping hole 5312, the second protrusion 5224 can contact the outer wall surface 5335, thereby driving the second pawl 533 to move away from the side of the clamping hole 5312 around the pivot hole 5331, so that the abutting portion 5332 relatively slides with the ratchet wheel 411, such as the internal teeth 4111, and further driving the bearing plate 531 and the adjusting wheel 521 to rotate, increasing the cross-linking length of the first lacing 20 and the second lacing 30, reducing the head circumference of the head-mounted device 100, and making the head-mounted device 100 tight.

[0240] In some embodiments, the first pawl 532 or the second pawl 533 may be omitted.

[0241] The first elastic member 534 may be mounted on the first mounting frame 5316 and may abut against the first pawl 532, specifically against the surface of the first pawl 532 facing the engaging hole 5312. Specifically, the first elastic member 534 may be mounted on the first mounting frame 5316 by means of clamping, screwing, welding, etc.

[0242] The first elastic member 534 may have the property of elastic deformation and undergo elastic deformation when the first pawl 532 rotates around the pivot hole 5321.

[0243] The first elastic member 534 may be made of an elastic material. The first elastic member 534 may be in the structure of a spring, a torsion spring, an elastic sheet, etc.

[0244] The second elastic member 535 may be mounted on the second mounting frame 5317 and may abut against the second pawl 533, specifically against the surface of the second pawl 533 facing the engaging hole 5312. Specifically, the second elastic member 535 may be mounted on the second mounting frame 5317 by means of clamping, screwing, welding, etc.

[0245] The second elastic member 535 may have the property of elastic deformation and undergo elastic deformation when the second pawl 533 rotates around the pivot hole 5331.

[0246] The second elastic member 535 may be made of an elastic material. The second elastic member 535 may be in the structure of a spring, a torsion spring, an elastic sheet, etc.

[0247] Please refer to 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.

[0248] For example, the first protrusion 5223 drives the first pawl 532 in the first direction ( Figure 30in the counterclockwise or clockwise direction (taking the counterclockwise direction as an example here), while the second protrusion 5224 drives the second pawl 533 to rotate in the first direction, the first elastic member 534 and the second elastic member 535 will be compressed and undergo elastic deformation. The abutting portion 5322 of the first pawl 532 will disengage from the engagement with the ratchet wheel 411, such as the internal teeth 4111, and the abutting portion 5332 of the second pawl 533 will disengage from the engagement with the ratchet wheel 411, such as the internal teeth 4111. The rotating disk 522 drives the bearing plate 531 and the connecting shaft 5212 to rotate. When the rotating disk 522 stops rotating, the force for the first elastic member 534 to return to its original state will cause the abutting portion 5322 of the first pawl 532 to engage with the ratchet wheel 411, such as the internal teeth 4111, and the force for the second elastic member 535 to return to its original state will cause the abutting portion 5332 of the second pawl 533 to engage with the ratchet wheel 411, such as the internal teeth 4111.

[0249] For example, the first protrusion 5223 drives the first pawl 532 to rotate in the second direction (the second direction is opposite to the first direction), while 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 wheel 411, such as the internal teeth 4111, and the abutting portion 5332 of the second pawl 533 will slide relative to the ratchet wheel 411, such as the internal teeth 4111. The rotating disk 522 drives the bearing 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 engage with the ratchet wheel 411, such as the internal teeth 4111, and the second elastic member 535 causes the abutting portion 5332 of the second pawl 533 to engage with the ratchet wheel 411, such as the internal teeth 4111.

[0250] Please refer to Figure 31 and Figure 32 , Figure 31 is a schematic diagram of the partial structure cooperation of the rack 231, the rack 331 and the tension adjustment assembly 50 in an embodiment of the present application. Figure 32 is Figure 31Cross-sectional view of the shown rack 231, rack 331 and part of the structure of the tension adjustment assembly 50 when they are cooperated, along line XXXII-XXXII. When the adjustment wheel 521, such as the connecting shaft 5212, rotates, it can drive the gear body 5211 to rotate around the mounting shaft 5113, and then drive the racks 231 and 331 meshing with the gear body 5211 to slide. As a result, the rack 231 slides in the first assembly groove 5124, the limiting rib 2312 slides in the limiting groove 5126, the rack 331 slides in the second assembly groove 5125, and the limiting rib 3312 slides in the limiting groove 5127. This makes the limiting rib 2313 unable to slide into the first assembly groove 5124, and the limiting rib 3313 unable to slide into the second assembly groove 5125, so that the racks 231 and 331 are respectively limited relative to the tension adjustment assembly 50 and cannot slip off.

[0251] Please refer to Figure 33 and Figure 34 , Figure 33 , which is a schematic structural diagram of the tension adjustment assembly 50 cooperating with the main housing 41 in some other embodiments of the present application. Figure 34 is Figure 33 a schematic structural diagram of the tension adjustment assembly 50 cooperating with the main housing 41 from another perspective in the shown embodiment. The ratchet and pawl mechanism 53 in the tension adjustment assembly 50 can be installed on the adjustment mechanism housing 51. Similarly, the knob mechanism 52 can also be installed on the adjustment mechanism housing 51, rather than installing the knob mechanism 52 on the side of the main housing 41 away from the wearing assembly 10, so as to improve the appearance expressiveness of the head-mounted device 100.

[0252] In some embodiments, an installation opening 501 is provided at the downward position of the adjustment mechanism housing 51, so that the knob mechanism 52, such as the rotating disk 522, is installed in the installation opening 501 and exposed outside the accommodation space 401. That is, the installation opening 501 communicates with the outside. In some embodiments, the installation opening 501 can be located between the first sub-functional component 441 and the second sub-functional component 442.

[0253] Please refer to Figure 35 and Figure 36 , Figure 35 is Figure 34 an exploded view of the shown tension adjustment assembly 50 in some embodiments. Figure 36 is Figure 35 an exploded view of the shown tension adjustment assembly 50 from another perspective. The tension adjustment assembly 50 can 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.

[0254] The adjustment mechanism housing 51 is used to carry the knob mechanism 52 and the ratchet and pawl mechanism 53, and can position the first lacing 20 and the second lacing 30. The knob mechanism 52 is connected to the first lacing 20 and the second lacing 30 to adjust the cross-linking length of the first lacing 20 and the second lacing 30. The knob mechanism 52 cooperates with the ratchet and pawl mechanism 53 so that the knob mechanism 52 can drive the ratchet and pawl mechanism 53 to rotate. The ratchet and pawl mechanism 53 is used to lock the relative positions of the first lacing 20 and the second lacing 30 to ensure the stability of the tightness of the head-mounted device 100.

[0255] The adjustment mechanism housing 51 can be the same as Figure 27 and Figure 28 the general structure of the adjustment mechanism housing 51 shown in, and only the same structures are listed here. For details, please refer to Figure 27 and Figure 28 and the descriptions in the above embodiments, and will not be elaborated here. In addition, the differences will be elaborated in detail.

[0256] 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 are cooperatively installed with the knob mechanism 52 and the ratchet and pawl mechanism 53.

[0257] The first housing 511 may include a housing main body 5111. The housing main body 5111 is provided with a receiving groove 5112, a mounting shaft 5113, a first mounting groove 5114, a second mounting groove 5115, and may be provided with ribs 5116 and 5117.

[0258] On the side of the receiving groove 5112 away from the second mounting groove 5115, the housing main body 5111 is provided with a storage groove 513 to accommodate the knob mechanism 52 and the ratchet and pawl mechanism 53.

[0259] The storage groove 513 and the receiving groove 5112 are located on the same side of the housing main body 5111. The storage groove 513 may be communicated with the receiving groove 5112, extend to the side of the receiving groove 5112 away from the second mounting groove 5115, and extend to the edge of the housing main body 5111 to form a first connection port 5131 to expose the knob mechanism 52 at the first connection port 5131. Further, the storage groove 513 is communicated with the first mounting groove 5114.

[0260] The depth of the storage slot 513 recessed from the surface of the housing body 5121 facing the main housing 41 towards the side away from the main housing 41 is greater than the depth of the first installation slot 5114 recessed from the surface of the housing body 5121 facing the main housing 41 towards the side away from the main housing 41, so as to reduce the probability of interference between the structure in the storage slot 513 and the first lacing 20 in the first installation 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 towards the side away from the main housing 41 is greater than the depth of the accommodation slot 5112 recessed from the surface of the housing body 5121 facing the main housing 41 towards the side away from the main housing 41.

[0261] The housing body 5111 is provided with a first pivot shaft 5132 and a second pivot shaft 5133 in the storage slot 513. The first pivot shaft 5132 and the second pivot shaft 5133 are cooperatively installed with a knob mechanism 52 and a ratchet and pawl mechanism 53. The first pivot shaft 5132 can be located between the mounting shaft 5113 and the second pivot shaft 5133. The second pivot shaft 5133 is closer to the first connection port 5131 than the first pivot shaft 5132.

[0262] The housing body 5111 is provided with a first mounting portion 5134 and a second mounting portion 5135 in the storage slot 513 and around the second pivot shaft 5133 for mounting the ratchet and pawl mechanism 53. In some embodiments, the first mounting portion 5134 is a groove or a convex post or a convex block. In some embodiments, the second mounting portion 5135 can be a rotating shaft.

[0263] The second housing 512 can include a housing body 5121. The housing body 5121 is provided with a relief groove 5122. The housing body 5121 is provided with a relief hole 5123. Of course, the relief hole 5123 can be omitted and replaced by a mounting shaft, and then cooperatively installed with the mounting shaft 5113 to mount the knob mechanism 52.

[0264] 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, both 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, both the limiting groove 5127 and the limiting rib 3312 can be omitted.

[0265] In some embodiments, the housing body 5121 can cover a part of the first housing 511, for example, can cover the first pivot shaft 5132, but does not cover the second pivot shaft 5133, the first mounting portion 5134, the second mounting portion 5135, etc. Furthermore, the first housing 511 is cooperated with the main housing 41 to form a mounting port 501 at the first connection port 5131. Of course, the mounting port 501 can also be formed by the housing body 5121 covering the first housing 511.

[0266] The knob mechanism 52 can be Figure 27 and Figure 28 substantially the same as the knob mechanism 52 shown in Figure 27 and Figure 28 and the descriptions in the above embodiments. Only the same structures will be listed here. For details, reference can be made to

[0267] The knob mechanism 52 can be installed in the accommodation groove 5112 and the storage groove 513 and can extend out from the first connection port 5131. The knob mechanism 52 can include an adjustment wheel 521 and a rotating disk 522 installed in the storage groove 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 through a ratchet and pawl mechanism 53. In some embodiments, the rotating disk 522 can extend out from the first connection port 5131.

[0268] The adjustment wheel 521 can include a gear body 5211. In some embodiments, the gear body 5211 can be directly rotatably connected to the mounting shaft 5113. The gear body 5211 can also be rotatably connected to the mounting shaft 5113 by other structures such as clamping, screwing, welding, etc. In some embodiments, the gear body 5211 can also be rotatably connected to the mounting shaft 5113 by being clamped between the first housing 511 and the second housing 512.

[0269] The gear body 5211 is provided with a jack 5213. In some embodiments, the jack 5213 can penetrate the gear body 5211. In some embodiments, when the mounting shaft 5113 is replaced with a through hole, a rotating shaft can be provided at the position where the gear body 5211 is provided with the jack 5213, so that the rotating shaft penetrates into the through hole replacing the mounting shaft 5113 to realize the rotational connection between the gear body 5211 and the adjustment mechanism housing 51.

[0270] In some embodiments, the gear body 5211 is a double reduction gear. The gear body 5211 can include a first reduction wheel 5214 and a second reduction wheel 5215 arranged coaxially. The first reduction wheel 5214 and the second reduction wheel 5215 are penetrated by the jack 5213, and thus the first reduction wheel 5214 and the second reduction wheel 5215 are both coaxially arranged with the mounting shaft 5113.

[0271] The outer diameter of the first reduction wheel 5214 is smaller than the outer diameter of the second reduction wheel 5215.

[0272] The first reduction gear 5214 is used for meshing connection (meshing drive connection) with the first lacing 20 and the second lacing 30. In some embodiments, the first reduction gear 5214 can be located between the first lacing 20 such as the rack 231 and the second lacing 30 such as the rack 331, and can mesh with the teeth 2311 of the first lacing 20 such as the rack 231, and can mesh with the teeth 3311 of the second lacing 30 such as the rack 331. In some scenarios, the first reduction gear 5214 rotates around the mounting shaft 5113, thereby realizing the adjustment of the cross-linking length between the first lacing 20 such as the rack 231 and the second lacing 30 such as the rack 331.

[0273] The first reduction gear 5214 is located on the side of the second reduction gear 5215 away from the first housing 511 such as the housing main body 5111. That is, the second reduction gear 5215 is clamped between the first reduction gear 5214 and the first housing 511 such as the housing main body 5111.

[0274] In some embodiments, the first reduction gear 5214 can be partially located in the receiving groove 5112 to improve the cooperation effect between the first lacing 20 such as the rack 231 and the second lacing 30 such as the rack 331 and the first reduction gear 5214 respectively.

[0275] In some embodiments, the first reduction gear 5214 can be partially located in the first mounting groove 5114 and the second assembly groove 5125 to improve the cooperation effect between the first lacing 20 such as the rack 231 and the second lacing 30 such as the rack 331 and the first reduction gear 5214 respectively.

[0276] In some embodiments, the first reduction gear 5214 can be partially located in the first assembly groove 5124 and the second mounting groove 5115 to improve the cooperation effect between the first lacing 20 such as the rack 231 and the second lacing 30 such as the rack 331 and the first reduction gear 5214 respectively.

[0277] The second reduction gear 5215 is used for meshing connection with the ratchet and pawl mechanism 53, so as to rotate synchronously with the first reduction gear 5214 under the drive of the ratchet and pawl mechanism 53.

[0278] In some embodiments, the second reduction gear 5215 is flush with the bottom of the first mounting groove 5114 and the bottom of the second mounting groove 5115.

[0279] The rotating disk 522 can be installed in the storage slot 513 and is rotatably connected to the second pivot shaft 5133. The rotating disk 522 may include a rotating disk body 5221 and a side wall 5222 that are 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 connecting 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 is coaxially arranged and rotatably connected to the second pivot shaft 5133. In some embodiments, the rotating disk body 5221 is coaxially arranged and rotatably connected to the second pivot shaft 5133. In some embodiments, the rotating disk body 5221 is rotatably connected to the second pivot shaft 5133 by other structural clamping, screwing, welding, etc. In some embodiments, the rotating disk 522 can also be rotatably connected to the second pivot shaft 5133 by being clamped between the first shell 511 and the second shell 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 .

[0280] 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 to drive the ratchet pawl mechanism 53 to rotate. In some embodiments, the clamping portion 5226 may be a perforation and may be connected to the connecting hole 5225. In some embodiments, the clamping portion 5226 may be Figure 27 and Figure 28 And the first protrusion 5223 and the second protrusion 5224 described in the above embodiment.

[0281] The side wall 5222 is provided with an internal gear 5220 to be connected with the ratchet and pawl mechanism 53 .

[0282] The ratchet pawl mechanism 53 can be used with Figure 27 and Figure 28 , Figure 29 , Figure 30 The ratchet pawl mechanism 53 shown in FIG. 1 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 differences are described in detail.

[0283] In some embodiments, Figure 27 and Figure 28 , Figure 29 , Figure 30The ratchet and pawl mechanism 53 shown in the figure can be directly arranged on the first housing 511. That is, the ratchet 411 can be arranged on the side of the first housing 511 facing the main housing 41 in the same way as it is arranged on the main housing 41. Specifically, the ratchet 411 can be arranged in the placement groove 513 and surround the second pivot shaft 5133. The clamping hole 5312 of the bearing plate 531 in the ratchet and pawl mechanism 53 can pass through the second pivot shaft 5133 to realize the rotational connection between the bearing plate 531 and the second pivot shaft 5133. The rotating disk 522, such as the turntable main body 5221, cooperates with the ratchet and pawl mechanism 53 through the first protrusion 5223 and the second protrusion 5224. The rotating disk 522 can be in meshing transmission with the gear main body 5211. For example, external teeth are arranged on the outer periphery of the side wall 5222 to be in meshing connection with the first reduction gear 5214 or the second reduction gear 5215 in the gear main body 5211. That is, 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 arranged on the side of the second housing 512 away from the first housing 511 in the same way as it is arranged on the main housing 41, and cooperate with the rotating disk 522 through the ratchet and pawl mechanism 53. That is, the second housing 512 covers the placement groove 513 of the first housing 511. The rotating disk 522 extends out of the accommodation space 401 from between the second housing 512 and the main housing 41. That is to say, the installation opening 501 is arranged between the second housing 512 and the main housing 41, rather than being formed by the first connection port 5131 of the placement groove 513.

[0284] In some embodiments, the ratchet and pawl mechanism 53 may include a ratchet 411 and a pawl assembly 530 installed in the placement groove 513. The ratchet 411 is in meshing connection with the pawl assembly 530. The ratchet 411 is in meshing connection with the gear main body 5211, such as the second reduction gear 5215. The pawl assembly 530 is connected to the rotating disk 522. Furthermore, by driving the pawl assembly 530, the ratchet 411, and the gear main body 5211, such as the second reduction gear 5215 to rotate in sequence through the rotating disk 522, the adjustment of the cross-linking length between the first lace 20, such as the rack 231, and the second lace 30, such as the rack 331, is realized.

[0285] In some embodiments, the ratchet 411 can be coaxially arranged with the first pivot shaft 5132 and installed on the first pivot shaft 5132. In some embodiments, the ratchet 411 can be flush with the bottom of the first installation groove 5114 without being placed in the first installation groove 5114, thereby reducing the probability of interference with the first lace 20 in the first installation groove 5114.

[0286] In some embodiments, the ratchet 411 can be rotatably connected to the gear main body 5211, such as the second reduction gear 5215.

[0287] In some embodiments, the ratchet wheel 411 is a triple reduction gear. The ratchet wheel 411 may include a third reduction wheel 4112, a fourth reduction wheel 4113, and a fifth reduction wheel 4114 that are coaxially arranged. The third reduction wheel 4112, the fourth reduction wheel 4113, and the fifth reduction wheel 4114 may be penetrated by a first pivot shaft 5132, and thus the third reduction wheel 4112, the fourth reduction wheel 4113, and the fifth reduction wheel 4114 are all coaxially arranged with the first pivot shaft 5132.

[0288] The outer diameter of the third reduction wheel 4112 is smaller than the outer diameter of the fourth reduction wheel 4113. In some embodiments, the outer diameter of the third reduction wheel 4112 is smaller than the outer diameter of the fifth reduction wheel 4114. In some embodiments, the outer diameter of the fifth reduction wheel 4114 is smaller than the outer diameter of the fourth reduction wheel 4113.

[0289] The third reduction wheel 4112 may be flush with the bottom of the first installation groove 5114, thereby reducing the probability of interference with the first lace 20 in the first installation groove 5114. The third reduction wheel 4112 may be meshed and connected with a gear body 5211, such as a second reduction wheel 5215, and thus may drive the gear body 5211, such as the second reduction wheel 5215, to rotate.

[0290] 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 meshed and connected with a pawl assembly 530.

[0291] The fifth reduction wheel 4114 may be located on a side of the fourth reduction wheel 4113 away from the third reduction wheel 4112. That is, the fourth reduction wheel 4113 is located between the third reduction wheel 4112 and the fifth reduction wheel 4114. The fifth reduction wheel 4114 may be cooperatively clamped with the pawl assembly 530 to limit the ratchet wheel 411. In some embodiments, the fifth reduction wheel 4114 may be omitted, and thus the third reduction wheel 4112 or the fourth reduction wheel 4113 may be cooperatively clamped with the pawl assembly 530 to limit the ratchet wheel 411. In some embodiments, the fourth reduction wheel 4113 and the fifth reduction wheel 4114 may be omitted together, and the third reduction wheel 4112 may be meshed and connected with a gear body 5211, such as a second reduction wheel 5215, meshed and connected with the pawl assembly 530, and cooperatively clamped to limit the ratchet wheel 411.

[0292] The pawl assembly 530 may be Figure 27 and Figure 28 substantially the same as the general structure of the pawl assembly 530 shown in Figure 27 and Figure 28 For the same structures, only a list is provided here. For details, reference may be made to

[0293] Please refer to Figure 37 and Figure 38 , Figure 37 which is Figure 36 a schematic structural view of the ratchet and pawl mechanism 53 in another embodiment as shown in the embodiment. Figure 38 And Figure 37 which is

[0294] a schematic structural view of the ratchet and pawl mechanism 53 in another perspective as shown in the embodiment. The pawl assembly 530 is installed in the storage groove 513. The pawl assembly 530 may include a carrier 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.

[0295] The carrier plate 531 may include a carrier body 5311. The carrier body 5311 is provided with a clamping hole 5312 for passing through the second pivot shaft 5133 to achieve rotational connection with the second pivot shaft 5133.

[0296] The carrier body 5311 is provided with a clamping frame 5313. The clamping frame 5313 may not be clamped with the second pivot shaft 5133. The first mounting frame 5316 and the second mounting frame 5317 may not be provided on the clamping frame 5313 to install the first elastic member 534 and the second elastic member 535 in other ways. Of course, the first elastic member 534 and the second elastic member 535 may also be installed through the first mounting frame 5316 and the second mounting frame 5317.

[0296] The carrier body 5311 is provided with a first assembly shaft 5314 and a second assembly shaft 5315 on the side facing the main housing 41.

[0297] The carrier plate 531 is provided with a first limiting portion 5318 and a second limiting portion 5319 in the radial direction. The first limiting portion 5318 may cooperate with the first mounting portion 5134. The second limiting portion 5319 may cooperate with the second mounting portion 5135. In some embodiments, the first limiting portion 5318 and the second limiting portion 5319 respectively extend from the carrier plate 531 to the side away from the second pivot shaft 5133. In some embodiments, the first limiting portion 5318 and the second limiting portion 5319 are centrosymmetric about the center of the second pivot shaft 5133.

[0298] 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 at the same time, the rotating disk 522 may also be covered by the second housing 512.

[0299] The first pawl 532 is provided with a pivot hole 5321. In some embodiments, the first pawl 532 may not be provided with an abutting portion 5322.

[0300] The first pawl 532 may be provided with an abutting and limiting portion 5326 for abutting and limiting against the clamping frame 5313. In some scenarios, the abutting and limiting portion 5326 can rotate around the first assembly shaft 5314 towards the clamping frame 5313 and can rotate to a position where it abuts and limits against the clamping frame 5313. In some scenarios, the abutting and limiting portion 5326 can rotate around the first assembly shaft 5314 towards the side away from the clamping frame 5313 and can rotate to a position where it disengages from the abutting and limiting against the clamping frame 5313. In some embodiments, the abutting and limiting portion 5326 can be a protrusion. In some embodiments, the abutting and limiting portion 5326 can have elastic deformation characteristics. Of course, the abutting and limiting portion 5326 may not have elastic deformation characteristics, but the portion of the clamping frame 5313 that abuts and limits against the abutting and limiting portion 5326 has elastic deformation characteristics.

[0301] The first pawl 532 may be provided with a card slot 5327 to accommodate the first rolling member 536. The card slot 5327 can be provided on the side of the first pawl 532 facing away from the card hole 5312. In some embodiments, the first pawl 532 can rotate around the first assembly shaft 5314. When the portion of the first pawl 532 where the card slot 5327 is provided moves towards the side away from the card hole 5312, it can cause the abutting and limiting portion 5326 to move towards the clamping frame 5313 and can move to a position where it abuts and limits against the clamping frame 5313. In some embodiments, the first pawl 532 can rotate around the first assembly shaft 5314. When the portion of the first pawl 532 where the card slot 5327 is provided moves towards the side close to the card hole 5312, it can cause the abutting and limiting portion 5326 to move towards the side away from the clamping frame 5313 and can move to a position where it disengages from the abutting and limiting against the clamping frame 5313.

[0302] The second pawl 533 can 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 can also be covered by the second housing 512. At the same time, the rotating disk 522 can also be covered by the second housing 512.

[0303] The second pawl 533 is provided with a pivot hole 5331. In some embodiments, the second pawl 533 may not be provided with an abutting portion 5332.

[0304] The second pawl 533 may be provided with an abutting and limiting portion 5336 for abutting and limiting against the clamping frame 5313. In some scenarios, the abutting and limiting portion 5336 may rotate around the second assembly shaft 5315 towards the clamping frame 5313 and may rotate to a position where it abuts and limits against the clamping frame 5313. In some scenarios, the abutting and limiting portion 5336 may rotate around the second assembly shaft 5315 towards the side away from the clamping frame 5313 and may rotate to a position where it disengages from abutting and limiting against the clamping frame 5313. In some embodiments, the abutting and limiting portion 5336 may be a protrusion. In some embodiments, the abutting and limiting portion 5336 may have elastic deformation characteristics. Of course, the abutting and limiting portion 5336 may also not have elastic deformation characteristics, but the portion of the clamping frame 5313 that abuts and limits against the abutting and limiting portion 5336 has elastic deformation characteristics.

[0305] The second pawl 533 may be provided with a slot 5337 to accommodate the second rolling member 537. The slot 5337 may be provided on the side of the second pawl 533 facing away from the clamping hole 5312. In some embodiments, the second pawl 533 may rotate around the second assembly shaft 5315. When the portion of the second pawl 533 where the slot 5337 is provided moves towards the side away from the clamping hole 5312, the abutting and limiting portion 5336 may move towards the clamping frame 5313 and may rotate to a position where it abuts and limits against the clamping frame 5313. In some embodiments, the second pawl 533 may rotate around the second assembly shaft 5315. When the portion of the second pawl 533 where the slot 5337 is provided moves towards the side close to the clamping hole 5312, the abutting and limiting portion 5336 may move towards the side away from the clamping frame 5313 and may move to a position where it disengages from abutting and limiting against the clamping frame 5313.

[0306] The first elastic member 534 may be provided on the first assembly shaft 5314. In some embodiments, the first elastic member 534 may be directly fixed to the first assembly shaft 5314 by means such as clamping, welding, bonding, screwing, etc. In some embodiments, the first elastic member 534 may be sleeved on the first assembly shaft 5314 and is 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 may be disposed between the first pawl 532 and the carrier plate 531, such as the carrier body 5311. In some embodiments, the end of the first elastic member 534 away from the first assembly shaft 5314 may abut against the portion of the first pawl 532 away from the first assembly shaft 5314, so as to apply a force to the first pawl 532 to rotate around the first assembly shaft 5314 towards the side away from the clamping 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 of the first elastic member 534 may abut against the clamping frame 5313, so that the first elastic member 534 can undergo elastic deformation through the lever principle.

[0307] The second elastic member 535 can be arranged on the second assembly shaft 5315. In some embodiments, the second elastic member 535 can be directly fixed on the second assembly shaft 5315 by means of snap connection, welding, bonding, screwing, 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 part where the second elastic member 535 is connected to the second assembly shaft 5315 can be placed between the second pawl 533 and the carrier plate 531, such as the carrier body 5311. In some embodiments, one end of the second elastic member 535 far from the second assembly shaft 5315 can abut against the part of the second pawl 533 far from the second assembly shaft 5315, so as to give the second pawl 533 a force to move away from the snap hole 5312 side around the second assembly shaft 5315 through elastic deformation. In some embodiments, when the second elastic member 535 is rotatably connected to the second assembly shaft 5315, the middle part of the second elastic member 535 can abut against the snap frame 5313, so that the second elastic member 535 can undergo elastic deformation through the lever principle.

[0308] The first rolling member 536 can be arranged in the card slot 5327 and can abut against the inner gear 5220 of the rotating disk 522, such as the side wall 5222, under the action of the first elastic member 534. In one embodiment, the first elastic member 534 pushes the first pawl 532 towards the first rolling member 536, and further pushes the first rolling member 536 towards the side away from the snap hole 5312, so that the first rolling member 536 abuts against the inner gear 5220 of the rotating disk 522, such as the side wall 5222. In some embodiments, the first rolling member 536 can be a sphere or a cylinder, so that the part where the first rolling member 536 contacts the inner gear 5220 of the rotating disk 522, such as the side wall 5222, is an arc surface, and further the first rolling member 536 can relatively slide or be snap-fixed with the inner gear 5220 of the rotating disk 522, such as the side wall 5222. It can be understood that since the first rolling member 536 can contact the inner gear 5220 of the rotating disk 522, such as the side wall 5222, the part where the first rolling member 536 contacts the inner gear 5220 of the rotating disk 522, such as the side wall 5222, can be called the abutting part 5322. Furthermore, the abutting part 5322 can be an arc surface, and furthermore, it can also be a curved surface to realize the relative sliding or snap-fixing between the abutting part 5322 and the inner gear 5220 of the rotating disk 522, such as the side wall 5222. In some embodiments, the first rolling member 536 and the first pawl 532 can be of an integral structure.

[0309] Please refer to Figure 35 , Figure 36 , Figure 37 , Figure 38 and Figure 39 , Figure 39 for Figure 35Partial structural schematic diagram of the tension adjustment component 50 in the illustrated embodiment. When the rotating disk 522 rotates, it can drive the bearing plate 531 to rotate. For example, the internal gear 5220 on the side wall 5222 of the rotating disk 522 abuts against the first rolling member 536. When the rotating disk 522 rotates in the first direction ( Figure 39 the counterclockwise or clockwise direction in [ ], taking the counterclockwise direction as an example here), it will push the first rolling member 536 to move towards the side close to the clamping hole 5312. As a result, the first elastic member 534 undergoes elastic deformation. Under the action of the elastic deformation force, the first rolling member 536 is in close contact with the internal gear 5220 on the side wall 5222 of the rotating disk 522 and cannot slide relative to it. Then it drives the bearing plate 531 to rotate. When the bearing plate 531 encounters resistance, the resistance will cooperate with the elastic deformation force, causing the internal gear 5220 on the side wall 5222 of the rotating disk 522 to be in close contact with the first rolling member 536 and undergo relative sliding, so as not to achieve the effect of driving the bearing plate 531 to rotate, but to produce a damping effect, enabling the user to feel the damping sensation of the relative sliding between the internal gear 5220 and the first rolling member 536. For example, the internal gear 5220 on the side wall 5222 of the rotating disk 522 abuts against the first rolling member 536. When the rotating disk 522 rotates in the second direction (opposite to the first direction), it will push the first rolling member 536 to move towards the side away from the clamping hole 5312, causing the abutting and limiting portion 5326 of the first pawl 532 to be fixedly clamped with the clamping frame 5313. Then the internal gear 5220 on the side wall 5222 of the rotating disk 522 is in close contact with the first rolling member 536 and cannot slide relative to it. Then it drives the bearing plate 531 to rotate. When the bearing plate 531 encounters resistance, the resistance will cause the internal gear 5220 on the side wall 5222 of the rotating disk 522 to be in close contact with the first rolling member 536 and undergo relative sliding, so as not to achieve the effect of driving the bearing plate 531 to rotate, but to produce a damping effect, enabling the user to feel the damping sensation of the relative sliding between the internal gear 5220 and the first rolling member 536.

[0310] The second rolling member 537 may be disposed in the slot 5337, and may abut against the internal gear 5220 of the rotating disk 522, such as the side wall 5222, under the action of the second elastic member 535. In one embodiment, the second elastic member 535 pushes the second pawl 533 to move toward the second rolling member 537, thereby pushing the second rolling member 537 to move away from the engaging hole 5312, so that the second rolling member 537 abuts against the internal gear 5220 of the rotating disk 522, such as the side wall 5222. In some embodiments, the second rolling member 537 may be a sphere or a cylinder, 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 arc surface, thereby enabling the second rolling member 537 to slide relative to or be engaged and fixed with the internal gear 5220 of the rotating disk 522, such as the side wall 5222. It can be understood that the second rolling member 537 can contact the rotating disk 522, such as the internal gear 5220 of the side wall 5222, so the part where the second rolling member 537 contacts the rotating disk 522, such as the internal gear 5220 of the side wall 5222, can be called the abutment portion 5332. The abutment portion 5332 can be an arc surface, and further, it can also be a curved surface to achieve relative sliding or clamping fixation 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 an integral structure with the second pawl 533.

[0311] 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 39In the counterclockwise or clockwise direction (taking the counterclockwise direction as an example here), when rotating, it will push the second rolling member 537 to move towards the side close to the engaging hole 5312. Further, the second elastic member 535 will undergo elastic deformation. Under the action of the elastic deformation force, the second rolling member 537 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 it. Then it will drive the bearing plate 531 to rotate. When the bearing plate 531 encounters resistance, the resistance will cooperate with the elastic deformation force, making the internal gear 5220 of the side wall 5222 of the rotating disk 522 in close contact with the second elastic member 535 and causing relative sliding, so as not to achieve the effect of driving the bearing plate 531 to rotate, but to achieve a damping effect, enabling the user to feel the damping sense of the relative sliding between the internal gear 5220 and the first rolling member 536. For example, when the internal gear 5220 of the side wall 5222 of the rotating disk 522 abuts against the second rolling member 537 and the rotating disk 522 rotates in the second direction (opposite to the first direction), it will push the second rolling member 537 to move towards the side away from the engaging hole 5312, causing the abutting and limiting portion 5336 of the second pawl 533 to be fixedly engaged with the engaging frame 5313. Further, the internal gear 5220 of the side wall 5222 of the rotating disk 522 will be in close contact with the second elastic member 535 and cannot slide relative to it. Then it will drive the bearing plate 531 to rotate. When the bearing plate 531 encounters resistance, the resistance will make the internal gear 5220 of the side wall 5222 of the rotating disk 522 in close contact with the second elastic member 535 and cause relative sliding, so as not to achieve the effect of driving the bearing plate 531 to rotate, but to achieve a damping effect, enabling the user to feel the damping sense of the relative sliding between the internal gear 5220 and the second rolling member 537.

[0312] Please refer to Figure 37 and Figure 38 , the transmission gear 538 can be installed in the placement groove 513. The transmission gear 538 can be meshed and connected with the ratchet wheel 411, such as the fourth reduction gear 4113, and can be connected with the rotating disk 522 to drive the transmission gear 538 to rotate through the rotating disk 522. The transmission gear 538 can be installed on the second pivot shaft 5133 and can be coaxially arranged with the second pivot shaft 5133 to rotate around the second pivot shaft 5133.

[0313] The transmission gear 538 can include a runner main body 5381 installed on the second pivot shaft 5133 and located on the side of the bearing plate 531 away from the rotating disk 522. The runner main body 5381 can be coaxially arranged with the second pivot shaft 5133 to rotate around the second pivot shaft 5133. In some embodiments, a pivot hole 5382 can be provided in the middle of the runner main body 5381 to sleeved on the second pivot shaft 5133 to achieve rotational connection with the second pivot shaft 5133.

[0314] On one side of the runner main body 5381 facing the bearing plate 531, a first protruding portion 5383 and a second protruding portion 5384 are protrudingly provided. The first protruding portion 5383 and the second protruding portion 5384 may be symmetrically arranged. And one of the first protruding portion 5383 and the second protruding portion 5384 can be omitted.

[0315] The first protruding portion 5383 and the second protruding portion 5384 can be inserted into and clamped with the clamping holes 5312, and are clamped with the rotating disk 522 located on the side of the bearing plate 531 away from the runner main body 5381. In some embodiments, the first protruding portion 5383 and the second protruding portion 5384 can be protrudingly provided at the edge of the pivot hole 5382 of the runner main body 5381, so that the bearing plate 531 can be sleeved on the first protruding portion 5383 and the second protruding portion 5384 at the clamping holes 5312, realizing the coaxial setting and rotational connection of the bearing plate 531 and the runner main body 5381. In some embodiments, the first protruding portion 5383 and the second protruding portion 5384 can abut against the middle part of the first elastic member 534, so that the first elastic member 534 can undergo elastic deformation through the lever principle. Furthermore, the middle part of the first elastic member 534 may not abut against the clamping frame 5313. Of course, it may also be that the middle part of the first elastic member 534 abuts against the clamping frame 5313.

[0316] In some embodiments, the first protruding portion 5383 and the second protruding portion 5384 can extend into the clamping portion 5226, such as a perforation, to achieve the clamping connection between the runner main body 5381 and the rotating disk 522. In some embodiments, the first protruding portion 5383 is located within the clamping portion 5226 and can be clamped with a portion on one side of the clamping portion 5226, or can be clamped with a portion on one side of the clamping portion 5226, or can also be not in contact with the portions on both sides of the clamping portion 5226. Furthermore, the first protruding portion 5383 and the clamping portion 5226 cooperate to rotate around the second pivoting axis 5133 in a clamped state, or the first protruding portion 5383 and the clamping portion 5226 do not cooperate to be clamped, and only the first protruding portion 5383 or the clamping portion 5226 rotates around the second pivoting axis 5133. That is, when the rotating disk 522 rotates, the first protruding portion 5383 can slide within the clamping portion 5226 and can slide from the state of being clamped with the rotating disk 522 to the state of being disengaged from the clamping, or from the state of being disengaged from the clamping with the rotating disk 522 to the state of being clamped. In some embodiments, the second protruding portion 5384 is located within the clamping portion 5226 and can be clamped with a portion on one side of the clamping portion 5226, or can be clamped with a portion on one side of the clamping portion 5226, or can also be not in contact with the portions on both sides of the clamping portion 5226. Furthermore, the second protruding portion 5384 and the clamping portion 5226 cooperate to rotate around the second pivoting axis 5133 in a clamped state, or the second protruding portion 5384 and the clamping portion 5226 do not cooperate to be clamped, and only the second protruding portion 5384 or the clamping portion 5226 rotates around the second pivoting axis 5133. That is, when the rotating disk 522 rotates, the second protruding portion 5384 can slide within the clamping portion 5226 and can slide from the state of being clamped with the rotating disk 522 to the state of being disengaged from the clamping, or from the state of being disengaged from the clamping with the rotating disk 522 to the state of being clamped.

[0317] Please refer to Figure 37 and Figure 38 , the limiting member 539 can be installed in the first installation groove 5114 to cooperate with the bearing plate 531, such as the first limiting portion 5318, to apply resistance to the bearing plate 531. The limiting member 539 can be an elastic member. The limiting member 539 can include a limiting main body 5391. The limiting main body 5391 can be formed by bending an elastic sheet, and of course, it can also be made of other elastically deformable materials, and even the structure can be set according to needs.

[0318] On the middle part of the side of the limiting main body 5391 facing the bearing plate 531, a damping part 5392 is provided, and clamping parts, such as a first clamping part 5393 and a second clamping part 5394, are respectively provided on both sides of the damping part 5392. In some scenarios, the bearing plate 531, such as the first limiting part 5318, can be located between the clamping parts, such as the first clamping part 5393 and the second clamping part 5394, to be clamped with the limiting main body 5391. In some embodiments, the damping part 5392 can apply resistance to the bearing plate 531, such as the first limiting part 5318, to limit the bearing plate 531, such as the first limiting part 5318, at the first clamping part 5393 or the second clamping part 5394. In some scenarios, the bearing plate 531 rotates around the clamping hole 5312. During the process that the bearing plate 531, such as the first limiting part 5318, slides from the first clamping part 5393 to the second clamping part 5394, the damping part 5392 can undergo elastic deformation and return to its original state. The elastic deformation of the damping part 5392 causes resistance to the rotation of the bearing plate 531. When the bearing plate 531 overcomes the resistance, it will slide from the first clamping part 5393 to the second clamping part 5394. In some scenarios, the bearing plate 531 rotates around the clamping hole 5312. During the process that the bearing plate 531, such as the first limiting part 5318, slides from the second clamping part 5394 to the first clamping part 5393, the damping part 5392 can undergo elastic deformation and return to its original state. The elastic deformation of the damping part 5392 causes resistance to the rotation of the bearing plate 531. When the bearing plate 531 overcomes the resistance, it will slide from the second clamping part 5394 to the first clamping part 5393.

[0319] In some embodiments, the damping part 5392 can be protrudingly provided from the limiting main body 5391, such as an elastic sheet, toward the side facing the bearing plate 531. In some embodiments, the clamping parts, such as the first clamping part 5393 and the second clamping part 5394, can be recessedly provided from the limiting main body 5391, such as an elastic sheet, toward the side away from the bearing plate 531.

[0320] The limiting pawl 540 is pivotally mounted on the second mounting part 5135, such as a rotating shaft, and can rotate around the second mounting part 5135, such as a rotating shaft. In some embodiments, a pivotal connection hole 5401 is provided on the limiting pawl 540 to be pivotally connected to the second mounting part 5135, such as a rotating shaft, to realize the rotational connection between the limiting pawl 540 and the second mounting part 5135, such as a rotating shaft. In some embodiments, the limiting pawl 540 and the second mounting part 5135, such as a rotating shaft, can be rotationally connected by means of screwing, clamping, etc. In some embodiments, the pivotal connection hole 5401 can be provided in the middle of the limiting pawl 540.

[0321] The limiting pawl 540 has an abutting portion 5402 and an adjusting portion 5403 which are connected to each other. A pivot hole 5401 is provided at the portion where the abutting portion 5402 and the adjusting portion 5403 are connected to each other. Of course, the pivot hole 5401 can also be provided on the abutting portion 5402 or the adjusting portion 5403.

[0322] The abutting portion 5402 extends towards the ratchet wheel 411 to engage with the ratchet wheel 411, such as the fifth reduction gear 4114, to limit the ratchet wheel 411 and prevent the ratchet wheel 411 from rotating. In some scenarios, the abutting portion 5402 can rotate around the second mounting portion 5135, such as a rotating shaft, so that the abutting portion 5402 moves towards the ratchet wheel 411 side and engages with the ratchet wheel 411, such as the fifth reduction gear 4114, to limit the ratchet wheel 411 and prevent the ratchet wheel 411 from rotating. In some scenarios, the abutting portion 5402 can rotate around the second mounting portion 5135, such as a rotating shaft, so that the abutting portion 5402 moves towards the side away from the ratchet wheel 411 and disengages from the ratchet wheel 411, such as the fifth reduction gear 4114, so that the ratchet wheel 411 can rotate.

[0323] The surface of the adjusting portion 5403 facing the bearing plate 531 can abut against the bearing plate 531, such as the second limiting portion 5319, so that when the bearing plate 531, such as the second limiting portion 5319, rotates around the engaging hole 5312, the adjusting portion 5403 rotates around the second mounting portion 5135, such as a rotating shaft. In some embodiments, the adjusting portion 5403 can be slidably connected to the bearing plate 531, such as the second limiting portion 5319. In some scenarios, as Figure 37 shown, when the bearing plate 531, such as the first limiting portion 5318, slides from the first clamping portion 5393 to the second clamping portion 5394, the bearing plate 531, such as the second limiting portion 5319, will push the adjusting portion 5403, causing the adjusting portion 5403 to move towards the side away from the bearing plate 531, and further causing the abutting portion 5402 to move towards the side close to the bearing plate 531 and disengage from the ratchet wheel 411, such as the fifth reduction gear 4114. In some scenarios, as Figure 37 shown, when the bearing plate 531, such as the first limiting portion 5318, slides from the second clamping portion 5394 to the first clamping portion 5393, the adjusting portion 5403 can move towards the side close to the bearing plate 531, and further cause the abutting portion 5402 to move towards the side away from the bearing plate 531, approach the ratchet wheel 411, and engage with the ratchet wheel 411, such as the fifth reduction gear 4114.

[0324] Please refer to Figure 37 and Figure 38, the limiting elastic member 541 can be arranged on the second installation part 5135, such as a rotating shaft. In some embodiments, the limiting elastic member 541 can be directly fixed on the second installation part 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 installation part 5135, such as a rotating shaft, and is rotatably connected to the second installation part 5135, such as a rotating shaft. In some embodiments, the part where the limiting elastic member 541 is connected to the second installation part 5135, such as a rotating shaft, can be placed between the limiting pawl 540 and the first housing 511. In some embodiments, one end of the limiting elastic member 541 far from the second installation part 5135, such as a rotating shaft, can abut against the side of the limiting pawl 540, such as the adjusting part 5403, far from the bearing plate 531, so as to apply a force to the limiting pawl 540, such as the adjusting part 5403, to move towards the side close to the bearing plate 531 around the first assembly shaft 5314 through elastic deformation. In some embodiments, when the limiting elastic member 541 is rotatably connected to the second installation part 5135, such as a rotating shaft, the middle part of the limiting elastic member 541 can abut against the first housing 511, so that the limiting elastic member 541 can undergo elastic deformation through the lever principle.

[0325] Please refer to Figure 35 , Figure 36 , Figure 37 , Figure 38 and Figure 39 , the rotating disk 522 rotates in the first direction ( Figure 39 the counterclockwise or clockwise direction in, taking the counterclockwise direction as an example here), and during the period when the rotating disk 522 can slide from the state of being disengaged from the clamping to the state of being clamped with the first protruding part 5383 and the second protruding part 5384 at the clamping part 5226, or is always in the clamped state. When the rotating disk 522 is in the state of being disengaged from the first protruding part 5383 and the second protruding part 5384, it cannot drive the transmission gear 538 to rotate.

[0326] The rotating disk 522 continues to rotate in the first direction. The internal gear 5220 on 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 towards the side close to the clamping hole 5312. The first elastic member 534 and the second elastic member 535 undergo elastic deformation. Under the action of the elastic deformation force, the first rolling member 536 and the second rolling member 537 are in close contact with the internal gear 5220 on the side wall 5222 of the rotating disk 522.

[0327] The bearing plate 531, such as the first limiting part 5318, is clamped at the first clamping part 5393, so that the bearing plate 531 cannot rotate, and the rotating disk 522 will slide relative to the first rolling member 536 and the second rolling member 537.

[0328] The rotating disk 522 continues to rotate in the first direction until it reaches a state where the rotating disk 522 is engaged with the first protruding portion 5383 and the second protruding portion 5384 at the engaging portion 5226. The rotating disk 522 drives the transmission gear 538 to rotate. The transmission gear 538 rotates with the ratchet wheel 411, such as the fourth reduction gear 4113. The ratchet wheel 411, such as the third reduction gear 4112, drives the adjusting wheel 521, such as the second reduction gear 5215, to rotate. The adjusting wheel 521, such as the first reduction gear 5214, rotates to reduce the cross-linking length between the first lace 20 and the second lace 30, making the head-mounted device 100 loose.

[0329] At the same time, the ratchet wheel 411, such as the fifth reduction gear 4114, will push the limiting pawl 540, such as the abutting portion 5402, to move away from the ratchet wheel 411, such as the fifth reduction gear 4114, so that the limiting pawl 540, such as the abutting portion 5402, disengages from the engagement with the ratchet wheel 411, such as the fifth reduction gear 4114, and at the same time, the limiting elastic member 541 undergoes elastic deformation.

[0330] When the cross-linking length between the first lace 20 and the second lace 30 is adjusted to the appropriate position, the force applied to the rotating disk 522 will be stopped. Then, the elastic deformation of the limiting elastic member 541 will push the limiting pawl 540, such as the adjusting portion 5403, to move towards the carrier plate 531 side, and the limiting pawl 540, such as the abutting portion 5402, will move towards the ratchet wheel 411 side to engage with the ratchet wheel 411, such as the fifth reduction gear 4114, to achieve the limiting and fixing of the ratchet wheel 411 and prevent the ratchet wheel 411 from rotating.

[0331] The rotating disk 522 rotates in the second direction (opposite to the first direction). During the period when the rotating disk 522 can slide from the disengaged state to the engaged state with the first protruding portion 5383 and the second protruding portion 5384 at the engaging portion 5226, the rotating disk 522 cannot drive the transmission gear 538 to rotate when it is in the disengaged state from the first protruding portion 5383 and the second protruding portion 5384.

[0332] The rotating disk 522 continues to rotate in the first direction. 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 towards the side close to the engaging hole 5312. The first elastic member 534 and the second elastic member 535 undergo elastic deformation. Under the action of 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, with the rotation of the rotating disk 522, the carrier plate 531 will rotate.

[0333] The load-bearing 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 load-bearing 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 load-bearing plate 531. The limiting elastic member 541 undergoes elastic deformation, and the limiting pawl 540, for example, the abutting portion 5402, disengages from the clamping connection with the ratchet wheel 411, for example, the fifth reduction gear 4114.

[0334] The rotating disk 522 continues to rotate in the first direction and will rotate to a state where the rotating disk 522 is clamped at the clamping portion 5226 with the first protruding portion 5383 and the second protruding portion 5384. Since the load-bearing plate 531, for example, the first limiting portion 5318, is clamped at the second clamping portion 5394, the load-bearing plate 531 remains stationary. Furthermore, the rotating disk 522 will relatively slide with 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. The transmission gear 538 rotates with the ratchet wheel 411, for example, the fourth reduction gear 4113. The ratchet wheel 411, for example, the third reduction gear 4112, drives the adjusting wheel 521, for example, the second reduction gear 5215, to rotate. The adjusting wheel 521, for example, the first reduction gear 5214, rotates to adjust the cross-linking length between the first lacing 20 and the second lacing 30, making the head-mounted device 100 looser.

[0335] When the cross-linking length between the first lacing 20 and the second lacing 30 is adjusted to an appropriate position, the force applied to the rotating disk 522 will be stopped. Furthermore, the elastic deformation of the limiting elastic member 541 pushes the limiting pawl 540, for example, the adjusting portion 5403, to move towards the load-bearing plate 531. Furthermore, it pushes the load-bearing plate 531, for example, the first limiting portion 5318, to overcome the elastic deformation of the damping portion 5392 and slide from the second clamping portion 5394 to the first clamping portion 5393. At the same time, the limiting pawl 540, for example, the abutting portion 5402, moves towards the ratchet wheel 411 to engage with the ratchet wheel 411, for example, the fifth reduction gear 4114, to achieve the limiting and fixing of the ratchet wheel 411 and prevent the ratchet wheel 411 from rotating.

[0336] It can be understood that the tightness adjustment assembly 50 may further include a power source, such as a motor, to drive the rotation of the rotating disk 522. In some embodiments, the circuit trace 102 may be connected to the power source of the tightness adjustment assembly 50, such as a motor.

[0337] Please refer to Figure 1 and Figure 2 , the first lacing 20 and the first mounting bracket 42 cooperate to support the wearing assembly 10 and the headrest assembly 40. The second lacing 30 and the second mounting bracket 43 cooperate to support the wearing assembly 10 and the headrest assembly 40. The first lacing 20 can slide within the first mounting bracket 42, and the second lacing 30 can slide within the second mounting bracket 43 to achieve the tightness adjustment of the head-mounted device 100.

[0338] Please refer to Figure 1 and Figure 2 For the force-bearing assembly 60, it 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 can serve as the force-bearing parts of the head-mounted device 100. In some embodiments, the head-mounted device 100 can use at least the first force-bearing member 61 and the second force-bearing member 62 as force-bearing points, so that the head-mounted device 100 is stably supported and worn.

[0339] The first force-bearing member 61 can be located on the side of the wearing assembly 10, such as the main housing 11, facing the headrest assembly 40. That is, in some embodiments, the first force-bearing member 61 can be arranged on the side of the wearing assembly 10, such as the main housing 11, facing the lacing assembly 200. The first force-bearing member 61 can be rotatably connected to the wearing assembly 10, such as the main housing 11, at least through structures such as a rotating shaft. So that when the wearing assembly 10, such as the main housing 11, rotates relative to the lacing assembly 200, such as the first lace 20 and the second lace 30, it rotates relative to the first force-bearing member 61. In some embodiments, the first force-bearing member 61 can be fixed to the lacing assembly 200, such as the first lace 20 and the second lace 30, at least by means of clamping, screwing, welding, etc., so that the wearing assembly 10, such as the main housing 11, rotates relative to the lacing assembly 200, such as the first lace 20 and the second lace 30, and the first force-bearing member 61 at the same time.

[0340] The first force-bearing member 61 can be in contact with the wearing assembly 10, such as the main housing 11, to be worn on the user's head and realize the function of the host in the wearing assembly 10. A decorative groove 601 is formed between the first force-bearing member 61 and the wearing assembly 10, such as the main 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 housing 11.

[0341] In some embodiments, the first force-bearing member 61 can at least include a soft pad to improve the comfort of contact with the user's forehead around the eyes.

[0342] The second force-bearing member 62 is located on the side of the headrest assembly 40, such as the main housing 41, facing the wearing assembly 10, such as the main housing 11. In some embodiments, the second force-bearing member 62 can at least include a soft pad and be fixed to the headrest assembly 40 by means of bonding, clamping, screwing, etc.

[0343] The above are only the embodiments of the present application, and do not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present application, or directly or indirectly applied in other related technical fields, is equally included in the patent protection scope of the present application.

Claims

1. A tension adjustment assembly, characterized in that, Comprising: Adjusting mechanism housing; Adjusting wheel, connected within the adjusting mechanism housing; Ratchet and pawl mechanism, arranged on the adjusting mechanism housing, in transmission connection with the adjusting wheel, for clamping the adjusting wheel; And Rotating disk, arranged on the adjusting mechanism housing, in transmission connection with the ratchet and pawl mechanism, for releasing the clamping of the ratchet and pawl mechanism on the adjusting wheel, and driving the adjusting wheel to rotate through the ratchet and pawl mechanism; Wherein, the ratchet and pawl mechanism comprises: Ratchet, rotatably connected within the adjusting mechanism housing, in transmission connection with the adjusting wheel to drive the adjusting wheel to rotate; and Pawl assembly, arranged on the adjusting mechanism housing, in transmission connection with the ratchet, for clamping the ratchet, the rotating disk is in transmission connection with the pawl assembly, and the rotating disk is used for releasing the clamping of the pawl assembly on the ratchet, and driving the ratchet to rotate through the pawl assembly; Or, the ratchet and pawl mechanism comprises: Ratchet, connected outside the adjusting mechanism housing, provided with internal teeth, for cooperating with the adjusting wheel; Carrying plate, cooperating with the ratchet, connected with the adjusting wheel, and configured to be rotatable relative to the ratchet; and First pawl, mounted on the carrying plate, the first pawl is used for contacting the internal teeth to clamp the carrying plate, the first pawl is connected with the rotating disk, and the rotating disk is configured to release the contact state between the first pawl and the internal teeth, and drive the carrying plate and the adjusting wheel to rotate relative to the ratchet together through the first pawl.

2. The tension adjustment assembly according to claim 1, characterized in that: The pawl assembly comprises: Driving gear, rotatably connected to the adjusting mechanism housing, in transmission connection with the ratchet, the rotating disk cooperates with the driving gear to drive the ratchet to rotate through the driving gear; Carrying plate, coaxially arranged with the driving gear and relatively rotatable, cooperating with the rotating disk; Limiting pawl, rotatably connected to the adjusting mechanism housing, for clamping with the ratchet, the carrying plate cooperates with the limiting pawl, so that the rotating disk drives the limiting pawl to clamp with the ratchet or releases the clamping of the limiting pawl on the ratchet through the carrying plate.

3. The tension adjustment assembly according to claim 2, characterized in that: The driving gear comprises: Runner main body, rotatably connected to the adjusting mechanism housing, the runner main body is rotatably connected with the rotating disk, a first protruding part is arranged on one side of the runner main body facing the rotating disk, a clamping part is arranged on the rotating disk, and the first protruding part and the clamping part are configured to switch between being clamped with each other and not being clamped with each other when the runner main body and the rotating disk rotate relatively, and the first protruding part and the clamping part are configured to rotate together when being clamped with each other.

4. The tension adjustment assembly according to claim 3, characterized in that: When the first protruding part and the clamping part are not clamped with each other, the rotating disk is configured to rotate relative to the runner main body and rotate together with the carrying plate to release the clamping of the limiting pawl on the ratchet.

5. The tension adjustment assembly according to claim 2, characterized in that: The pawl assembly further comprises: A limiting member having a first fastening portion and a second fastening portion, the bearing plate being configured to rotate relative to the adjusting mechanism housing to switch between fastening with the first fastening portion and fastening with the first fastening portion. The bearing plate is configured to release the fastening between the limiting pawl and the ratchet when fastened to the second fastening portion, and the limiting pawl fastens the ratchet when the bearing plate is fastened to the first fastening portion.

6. The tension adjustment assembly according to claim 5, characterized in that: The ratchet and pawl mechanism further includes a limiting elastic member mounted on the adjusting mechanism housing and in contact with the limiting pawl. The limiting elastic member applies a force to the limiting pawl to cause the limiting pawl to rotate into contact with the ratchet and fasten thereto when the bearing plate is fastened to the first fastening portion.

7. The tension adjustment assembly according to claim 2, characterized in that: The rotating disk is provided with an internal gear, and the ratchet and pawl mechanism further includes: A first pawl rotatably connected to the bearing plate and cooperating with the internal gear; A first spring provided on the bearing plate and in contact with the first pawl for applying a force to the first pawl to contact the internal gear.

8. The tension adjustment assembly according to claim 7, characterized in that: The first pawl is provided with a slot, and the ratchet and pawl mechanism further includes: A first rolling member located in the slot and in contact with the internal gear, so that the first pawl contacts the internal gear through the first rolling member.

9. The tension adjustment assembly according to claim 1, characterized in that: The adjusting mechanism housing has two side-by-side channels; the two channels are arranged side by side on opposite sides of the adjusting wheel, and the adjusting wheel is partially located in each of the two channels.

10. The tension adjustment assembly according to claim 9, characterized in that: The adjusting mechanism housing includes: A first housing; A second housing connected to the first housing to form the two channels.

11. The tension adjustment assembly according to claim 10, characterized in that: On a side of the first housing facing the second housing, a receiving groove is provided. The two channels are arranged side by side on opposite sides of the receiving groove and communicate with the receiving groove, and the adjusting wheel is arranged in the receiving groove.

12. The tension adjustment assembly according to claim 1, characterized in that: The first pawl is pivotally connected to the bearing plate, and the tightening adjustment assembly further includes: A first elastic member fixed to the bearing plate and abutting against the middle of the first pawl. The first pawl is configured to contact the internal teeth in cooperation with the first elastic member to fasten the bearing plate.

13. The tension adjustment assembly according to claim 12, characterized in that: The first pawl has an edge for contacting the internal teeth to fasten the bearing plate.

14. A head-mounted device, characterized in that, Including: A headrest assembly having a receiving space; A tightening adjustment assembly installed in the receiving space, the tightening adjustment assembly including: An adjusting mechanism housing having two side-by-side channels, both of which communicate with the receiving space; An adjusting wheel rotatably connected within the adjusting mechanism housing. The two channels are arranged side by side on opposite sides of the adjusting wheel, and the adjusting wheel is partially located in each of the two channels; A ratchet and pawl mechanism provided on the adjusting mechanism housing and drivingly connected to the adjusting wheel for fastening the adjusting wheel; and A rotating disk provided on the adjusting mechanism housing and drivingly connected to the ratchet and pawl mechanism for releasing the fastening of the ratchet and pawl mechanism to the adjusting wheel and driving the adjusting wheel to rotate through the ratchet and pawl mechanism. The rotating disk is exposed outside the receiving space below the headrest assembly Among them, the ratchet and pawl mechanism includes: A ratchet wheel, rotatably connected inside the adjusting mechanism housing, and drivingly connected to the adjusting wheel to drive the adjusting wheel to rotate; and A pawl assembly, arranged on the adjusting mechanism housing, drivingly connected to the ratchet wheel, for clamping the ratchet wheel. The rotating disk is drivingly connected to the pawl assembly, and the rotating disk is used to release the clamping of the pawl assembly on the ratchet wheel and drive the ratchet wheel to rotate through the pawl assembly; Or, the ratchet and pawl mechanism includes: A ratchet wheel, connected outside the adjusting mechanism housing, provided with internal teeth for cooperating with the adjusting wheel; A carrier plate, cooperating with the ratchet wheel, connected to the adjusting wheel, and configured to be rotatable relative to the ratchet wheel; and A first pawl, installed on the carrier plate, the first pawl being used to contact the internal teeth to clamp the carrier plate. The first pawl is connected to the rotating disk, and the rotating disk is configured to release the contact state between the first pawl and the internal teeth and drive the carrier plate and the adjusting wheel to rotate relative to the ratchet wheel together through the first pawl.

15. The head-mounted device according to claim 14, characterized in that, The headrest assembly includes: A main housing having the accommodation space; A first mounting bracket and a second mounting bracket, oppositely arranged and connected to the main housing, each of the first mounting bracket and the second mounting bracket having a sliding through-hole communicating with the accommodation space.

16. The head-mounted device according to claim 15, wherein The head-mounted device further includes: A first tie and a second tie, the first tie is placed in one of the sliding through-hole, the accommodation space and the two channels of the first mounting bracket, and is drivingly connected to the adjusting wheel. The second tie is placed in the other of the sliding through-hole, the accommodation space and the two channels of the second mounting bracket, and is drivingly connected to the adjusting wheel, so that the first tie and the second tie are cross-linked, and the adjusting wheel is used to adjust the cross-linked length of the first tie and the second tie.

17. The head-mounted device according to claim 15, characterized in that The headrest assembly further includes: A functional component, arranged on the main housing, the functional component includes an electrode, and the electrode is used to contact the user to output a pulsed current.

18. The head-mounted device according to claim 15, wherein The headrest assembly further includes a functional component arranged on the main housing, and the functional component further includes: A light generator, arranged on the main housing, for emitting light; A photoelectric sensor, arranged on the main housing, for receiving the light reflected by the user's skin.

19. A head-mounted device, characterized in that, Including: An adjusting mechanism housing having two side-by-side channels; An adjusting wheel, rotatably connected inside the adjusting mechanism housing, and the two channels are arranged side by side on opposite sides of the adjusting wheel; A ratchet and pawl mechanism, arranged on the adjusting mechanism housing, drivingly connected to the adjusting wheel, for clamping the adjusting wheel; A rotating disk, arranged on the adjusting mechanism housing, drivingly connected to the ratchet and pawl mechanism, for releasing the clamping of the ratchet and pawl mechanism on the adjusting wheel and driving the adjusting wheel to rotate through the ratchet and pawl mechanism; And A first lacing and a second lacing, the first lacing is placed in one of the two channels and is in driving connection with the adjusting wheel, and the second lacing is placed in the other of the two channels and is in driving connection with the adjusting wheel, so that the first lacing and the second lacing are cross-connected to each other, and the adjusting wheel is used to adjust the cross-connected length of the first lacing and the second lacing Wherein, the ratchet and pawl mechanism includes: A ratchet, rotatably connected to the adjusting mechanism housing and in driving connection with the adjusting wheel to drive the adjusting wheel to rotate; and A pawl assembly, arranged on the adjusting mechanism housing and in driving connection with the ratchet for locking the ratchet, the rotating disk is in driving connection with the pawl assembly, and the rotating disk is used to release the locking of the pawl assembly on the ratchet and drive the ratchet to rotate through the pawl assembly; Or, the ratchet and pawl mechanism includes: A ratchet, connected to the outside of the adjusting mechanism housing, provided with internal teeth for cooperating with the adjusting wheel; A bearing plate, cooperating with the ratchet, connected to the adjusting wheel, and configured to be rotatable relative to the ratchet; and A first pawl, mounted on the bearing plate, the first pawl is used to contact the internal teeth to lock the bearing plate, the first pawl is connected to the rotating disk, and the rotating disk is configured to release the contact state between the first pawl and the internal teeth and drive the bearing plate and the adjusting wheel to rotate relative to the ratchet together through the first pawl.

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