CN216670404U

CN216670404U - Elasticity adjusting part and head-mounted equipment

Info

Publication number: CN216670404U
Application number: CN202123382332.5U
Authority: CN
Inventors: 叶文龙
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2021-12-29
Filing date: 2021-12-29
Publication date: 2022-06-03
Anticipated expiration: 2031-12-29

Abstract

The application discloses elasticity adjusting part and head-mounted equipment belongs to smart machine technical field. In the application, the first pivoting member is provided with a squeezing surface; the second pivoting piece is rotatably connected with the first pivoting piece and rotates around the first rotating shaft; the elastic component is arranged on the second pivot piece and is abutted against the extrusion surface, when the elastic component is elastically deformed, acting force acting on the extrusion surface is generated, and the acting force drives the first pivot piece to rotate relative to the second pivot piece. This application takes place elastic deformation through the elasticity subassembly and provides the resilience force for first pin joint spare and second pin joint spare can rotate relatively, and when using elasticity adjusting part in the head-mounted apparatus, the resilience force that usable elasticity subassembly provided adjusts the effort between landing leg and the user head, makes the user wear more comfortablely.

Description

Elasticity adjusting part and head-mounted equipment

Technical Field

The application belongs to the technical field of intelligent equipment, especially relates to a elasticity adjusting part and head-mounted equipment.

Background

At present, in the smart glasses industry, since the sizes of the head types of users are different, the glasses legs need to be adaptively adjusted according to the sizes of the head types of the users.

SUMMERY OF THE UTILITY MODEL

One aspect of the present application provides a slack adjustment assembly, including:

the first pivoting piece is provided with a squeezing surface;

the second pivoting piece is rotatably connected with the first pivoting piece and rotates around the first rotating shaft; and

the elastic component is mounted on the second pivot piece and abutted against the extrusion surface, when the elastic component is elastically deformed, an acting force acting on the extrusion surface is generated, and the acting force drives the first pivot piece to rotate relative to the second pivot piece.

One aspect of the present application provides a head-mounted device, including:

a mirror frame provided with a first connecting part and a second connecting part;

the first support leg is rotatably connected with the first connecting part and rotates around a first rotating shaft, one of the first support leg and the first connecting part is provided with a squeezing surface, and the second support leg is rotatably connected with the second connecting part; and

the elastic component is mounted on the other one of the first supporting leg and the first connecting portion and abutted against the extrusion surface, when the elastic component is elastically deformed, an acting force acting on the extrusion surface is generated, and the acting force drives one end, far away from the first connecting portion, of the first supporting leg to move to one side of the second supporting leg.

The application provides a head-mounted device in one aspect, including picture frame, first landing leg and second landing leg, first pin joint piece, second pin joint piece and elasticity subassembly, first pin joint piece sets up on the picture frame, first pin joint piece is provided with the plane of extrusion, second pin joint piece sets up each on first landing leg and the second landing leg, second pin joint piece with first pin joint piece rotates to be connected, and the duplex winding first pivot is rotated, first landing leg for the picture frame around the first pivot is rotated to one side that is close to the second landing leg or to keeping away from the one side of second landing leg, the second landing leg for the picture frame around the first pivot is rotated to one side that is close to the first landing leg or to keeping away from the one side of first landing leg rotates, the elasticity subassembly is installed on the second pin joint piece to the butt in the plane of extrusion, when the elastic component is elastically deformed, acting force acting on the extrusion surface is generated, and the acting force drives the first supporting leg and the second supporting leg to rotate relative to the mirror frame respectively so as to be close to each other.

a mirror frame;

the first leg is rotatably connected with the frame so as to rotate towards one side close to the second leg or one side far away from the second leg relative to the frame;

a first pivot member, a second pivot member and a third pivot member, the first pivot member being mounted on one of the frame and the second leg, the third pivot piece is arranged on the other one of the mirror frame and the second supporting leg, the first pivot piece is rotationally connected with the second pivot piece, and rotates around the first rotating shaft, the second pivoting piece is connected with the third pivoting piece in a rotating way and rotates around the second rotating shaft, the second leg is configured to rotate around the first rotating shaft or the second rotating shaft to a side close to the first leg or a side far away from the first leg, the second supporting leg is configured to rotate around the second rotating shaft to one side far away from the first supporting leg and can rotate to a state that the second pivoting piece is abutted and limited with the third pivoting piece, and a pressing surface is arranged on the second pivoting piece; and

the elastic component is installed on the first pin joint piece and abutted against the extrusion surface, when the elastic component is elastically deformed, the elastic component generates an acting force acting on the extrusion surface, and the acting force drives the second supporting leg to rotate around the first rotating shaft to be close to one side of the first supporting leg.

Adopt this application technical scheme, the beneficial effect who has does: this application takes place elastic deformation through elasticity subassembly and provides the resilience force under the cooperation of face of extrusion and elasticity subassembly for first pin joint spare and second pin joint spare can rotate relatively, and when using the elasticity adjusting part in the wear-type equipment, the resilience force that usable elasticity subassembly provided adjusts the effort between landing leg and the user head, makes the user wear more comfortablely.

Drawings

Fig. 1 is a schematic structural diagram of a head-mounted device according to an embodiment of the present application;

FIG. 2 is a schematic structural diagram of the head-mounted device shown in FIG. 1 from another perspective;

FIG. 3 is a schematic view of a portion of the frame of FIG. 1;

FIG. 4 is an exploded view of a portion of the construction of the frame of FIG. 3;

FIG. 5 is a schematic view of the adjustment member of FIG. 4 in another embodiment;

FIG. 6 is a schematic view of another embodiment of the frame of FIG. 4;

FIG. 7 is a schematic view of a portion of the structure of the frame and leg module shown in FIG. 2;

FIG. 8 is a schematic view of the slack adjuster assembly of FIG. 7;

FIG. 9 is an exploded view of the slack adjuster assembly of FIG. 8;

FIG. 10 is an exploded view of the slack adjustment assembly of FIG. 8 from another perspective;

FIG. 11 is a cross-sectional view of the slack adjustment assembly of FIG. 8 in a zero-spring state;

FIG. 12 is a cross-sectional view of the slack adjustment assembly of FIG. 11 in a resilient state.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Reference herein to "an 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 application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

The present application sets forth a head-mounted device. The head-mounted device may be an augmented reality or virtual reality device, such as augmented reality or virtual reality glasses. Of course, the head-mounted device may also be other devices that need to be worn on the head of the user, such as glasses, for example, a device that has other functions such as illumination and can be worn on the head of the user, and details are not repeated.

In an example of augmented reality or virtual reality glasses, the head-mounted device may be configured to communicate data to and receive data from an external processing device through a signal connection, which may be a wired connection, a wireless connection, or a combination thereof. However, in other cases, the head mounted device may be used as a stand-alone device, i.e. the data processing is performed in the head mounted device itself. The signal connection may be configured to carry any kind 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 may be, for example, a gaming console, a personal computer, a tablet computer, a smart phone, or other type of processing device.

The signal connection may 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 may communicate with one or more other external processing devices via a network, which may be or include, for example, a Local Area Network (LAN), a Wide Area Network (WAN), an intranet, a Metropolitan Area Network (MAN), the global internet, or a combination thereof.

Display components, optics, sensors, processors, etc. may be mounted in the head-mounted device. In the example of augmented reality or virtual reality glasses, the display component is designed to implement the functionality of the virtual reality glasses, for example, by projecting light into the user's eyes, e.g., by projecting light into the user's eyes, overlaying an image on the user's view of their real-world environment. The head-mounted device may also include sensors, such as ambient light sensors, hall sensors, etc., and may also include a control system to control at least some of the above-described components and perform associated data processing functions. The control system may include, for example, one or more processors and one or more memories.

Referring to fig. 1, fig. 1 is a schematic structural diagram of a head-mounted device according to an embodiment of the present application. The head mounted device 100 may include a frame 200 worn in front of the user's eyes, a leg module 300 connected with the frame 200 to be worn on the user's head, and a functional lens module 400 mounted on the frame 200.

Wherein the frame 200 is wearable on the bridge of the nose of the user. The leg module 300 may be mounted between the ear and the head of the user. The frame 200 may cooperate with the leg module 300 to enable the head-mounted device 100 to be worn on the head of a user. The functional lens module 400 may have some optical function. The functional lens module 400 may be mounted to the frame 200 to be mounted in front of the user's eyes. In some embodiments, the functional lens module 400 can cooperate with a control system to implement a certain optical function of the functional lens module 400, such as augmented reality, virtual reality, or image display.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "communicating" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms herein can be understood in a specific context to one of ordinary skill in the art.

Referring to fig. 1, fig. 2 and fig. 3, fig. 2 is a schematic structural diagram of the head-mounted device 100 in the embodiment shown in fig. 1 from another view angle, and fig. 3 is a schematic partial structural diagram of the frame 200 in fig. 1. The material of the frame 200 may be one or more rigid materials. The frame 200 may be connected to the leg module 300 at opposite ends. The mirror frame 200 may include a first mounting frame 10 connected to the leg module 300, a second mounting frame 20 disposed opposite to the first mounting frame 10 and connected to the first mounting frame 10 and the leg module 300, a nose pad 30 mounted on the first mounting frame 10 and/or the second mounting frame 20, and an adjusting member 40 for adjusting the relative position between the first mounting frame 10 and the second mounting frame 20.

The first mounting frame 10 and the second mounting frame 20 can be used for installing the functional lens module 400. The nose pad 30 contacts the bridge of the user's nose to support the frame 200, enabling the frame 200 to be worn on the bridge of the user's nose. In some embodiments, the nose pad 30 can be omitted and directly mounted on the bridge of the nose of the user through the first mounting frame 10 and the second mounting frame 20, so as to enable the frame 200 to be worn on the bridge of the nose of the user. The adjusting member 40 makes the head-mounted device 100 more fit to the head of the user by adjusting the relative positions of the first mounting frame 10 and the second mounting frame 20.

It is to be noted that the terms "first", "second", etc. are used herein and hereinafter for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, features defined as "first," "second," etc. may explicitly or implicitly include one or more of the described features.

It is to be understood that names of the "first installation frame", the "second installation frame", and the "installation frame" may be mutually converted, for example, the "first installation frame" may also be referred to as the "second installation frame", and the "second installation frame" may also be referred to as the "first installation frame".

The mounting frames, such as the first mounting frame 10 and the second mounting frame 20, may be a ring structure or a semi-ring structure, so as to mount the functional lens module 400. Of course, the mounting frames, such as the first mounting frame 10 and the second mounting frame 20, may also have other structures, which are not described in detail. In some embodiments, the first and second mounting frames 10 and 20 may have different structures. In some embodiments, the mounting frames, such as the first mounting frame 10 and the second mounting frame 20, may be fixed by a fastening method, such as a snap, a bolt, a welding, an adhesion, or the like, to mount the functional lens module 400.

The installation frames, such as the first installation frame 10 and the second installation frame 20, may have an accommodating space therein to install the control system, so as to achieve the matching between the functional lens module 400 and the control system.

The mounting frames, such as the first mounting frame 10 and the second mounting frame 20, may be provided with a connecting portion to be fixedly connected with the leg module 300. In some embodiments, the first mounting frame 10 is provided with a first connection portion 11 to be connected with the leg module 300. In some embodiments, the second mounting frame 20 is provided with a second connection portion 21 to be connected with the leg module 300. In some embodiments, the first connecting portion 11 is located at an end of the first mounting frame 10 away from the second mounting frame 20. In some embodiments, the second connecting portion 21 is located at an end of the second mounting frame 20 away from the first mounting frame 10. In some embodiments, the first connecting portion 11 and the second connecting portion 21 are located on the same side of the mounting frame, such as the first mounting frame 10 and the second mounting frame 20.

It is to be understood that the names of the "first connection portion", "second connection portion", and "connection portion" may be mutually converted, for example, the "first connection portion" may also be referred to as the "second connection portion", and the "second connection portion" may also be referred to as the "first connection portion".

In some embodiments. The connecting portions, such as the first connecting portion 11 and the second connecting portion 21, may have receiving spaces for installing the control system, so that the control system can be matched with the functional lens module 400.

Referring to fig. 4, fig. 4 is an exploded view of a portion of the frame 200 of fig. 3. The mounting frames, such as the first mounting frame 10 and the second mounting frame 20, may be provided with positioning portions for mounting the adjustment member 40. In some embodiments, the first mounting frame 10 is provided with a first positioning portion 12 near one end of the second mounting frame 20 for fixing the adjusting member 40. In some embodiments, the second mounting frame 20 is provided with a second positioning portion 22 at an end thereof close to the first mounting frame 10 for fixing the adjusting member 40. In some embodiments, the positioning portions, such as the first positioning portion 12 and the second positioning portion 22, may be bolts, fixing posts, fixing holes, insertion holes, and the like. Of course, the first positioning portion 12 may also be a buckle structure, an insertion structure, or other structures, which are not described in detail.

In some embodiments, the first positioning portion 12 and the second positioning portion 22 are located on the same side of the mounting frame, such as the first mounting frame 10 and the second mounting frame 20. In some embodiments, the first positioning portion 12 and the second positioning portion 22, the first connecting portion 11, and the second connecting portion 21 are located on the same side of the mounting frame, such as the first mounting frame 10 and the second mounting frame 20.

It is to be understood that the names of the "first positioning portion", the "second positioning portion", and the "positioning portion" may be mutually switched, for example, the "first positioning portion" may also be referred to as the "second positioning portion", and the "second positioning portion" may also be referred to as the "first positioning portion".

In some embodiments, referring to fig. 3 and 4, the first mounting frame 10 and the second mounting frame 20 may be connected by a bending member 201. In some embodiments, one end of the bending member 201 is connected to the first mounting frame 10, and the other end is connected and fixed to the second mounting frame 20. In some embodiments, the bending member 201 may be connected to the leg module 300 directly or through the first connecting portion 11 and the second connecting portion 21, and the first mounting frame 10 and the second mounting frame 20 may be mounted on the bending member 201 through fastening, screwing, welding, bonding, and the like, so as to mount the functional lens module 400 on the frame 200. In some embodiments, the first connection portion 11 and the second connection portion 21 may be disposed on the bending member 201. In some embodiments, the bending member 201 is disposed between the first and second mounting frames 10 and 20, and the first positioning portion 12 and the second positioning portion 22 are located at two sides of the bending member 201.

In some embodiments, the first mounting frame 10, the second mounting frame 20 and the bending member 201 may be an integral structure.

The bending piece 201 is arranged between the first mounting frame 10 and the second mounting frame 20, and the first mounting frame 10 and the second mounting frame 20 are arranged at intervals by the bending piece 201 so as to give way to the bridge of the nose of a user. In some embodiments, at least one of the first and second mounting frames 10 and 20 and the bending member 201 may be used for mounting the nose pad 30.

The piece 201 of buckling can adopt the material that can have elastic deformation to make, in order to buckle piece 201 and take place elastic deformation and realize buckling, can make first installing frame 10, second installing frame 20 all to the one side motion of landing leg module 300, and then adjust the relative position between first location portion 12 and the second location portion 22, and then under the cooperation of first location portion 12, second location portion 22 and regulating part 40, realize the regulation of first installing frame 10 and the relative position of second installing frame 20, make head-mounted device 100 more laminate user's head. It is understood that when the relative position of the first mounting frame 10 and the second mounting frame 20 is adjusted, the relative position between the first connecting portion 11 and the second connecting portion 21 is also adjusted.

In some embodiments, when the bending member 201 is bent, the first positioning portion 12 and the second positioning portion 22 are close to each other, the first mounting frame 10 and the second mounting frame 20 are close to each other, and the first connecting portion 11 and the second connecting portion 21 are close to each other.

In some embodiments, the first positioning portion 12 and the second positioning portion 22 may be disposed on the bending member 201.

In some embodiments, the material of the bending member 201 can also be used for the mounting frames, such as the first mounting frame 10 and the second mounting frame 20, and the bending member has an elastic deformation capability. Furthermore, in some embodiments, the bending member 201 may be omitted, and may be connected and fixed to the first mounting frame 10 and the second mounting frame 20, and may be bent.

Referring to fig. 4, the adjusting member 40 may be made of a hard material. In some embodiments, the adjusting member 40 may also be made of plastic, hard metal, or the like. In some embodiments, the adjusting member 40 may be made of a flexible material, an elastic material, or the like, while the adjusting member can maintain the bending state of the bending member 201 by a tensile force.

The adjusting member 40 may have a strip-like structure as a whole. Fixing portions 41 are provided at both ends in the extending direction, respectively. The fixing portion 41 at one end of the adjusting member 40 may be connected and fixed to the first mounting frame 10, for example, the first positioning portion 12. For example, the fixing is performed by bolts, fixing columns, buckles, insertion and the like. The fixing portion 41 at the other end of the adjusting member 40 may be connected and fixed with the second mounting frame 20, for example, the second positioning portion 22. For example, the fixing is performed by bolts, fixing columns, buckles, insertion and the like.

In some embodiments, the fixing portion 41 is a fixing hole, so that the fixing portion 41 and the positioning portions, such as the first positioning portion 12 and the second positioning portion 22, are connected and fixed through bolts and fixing posts.

After the bending member 201 is elastically deformed to realize bending, and the relative position of the first mounting frame 10 and the second mounting frame 20 is adjusted, the adjusting member 40, for example, the fixing portion 41, is respectively connected and fixed with the first mounting frame 10, for example, the first positioning portion 12, and the second mounting frame 20, for example, the second positioning portion 22, so as to fix the relative position of the first mounting frame 10 and the second mounting frame 20 by the adjusting member 40, overcome the acting force of the bending member 201 due to elastic deformation through the tensile force of the adjusting member 40, and avoid the bending member 201 from being restored to the original state due to elastic deformation.

In some embodiments, to ensure that the bending member 201 is bent to different degrees. The frame 200, such as the first mounting frame 10, the second mounting frame 20, and the bending member 201, may be provided with a plurality of positioning portions, such as the first positioning portion 12 and the second positioning portion 22, so that the distance between any two of the positioning portions is different preset distances, and further, the relative position of the first mounting frame 10 and the second mounting frame 20 may be adjusted in a variety of ways under the cooperation of the adjusting member 40.

In some embodiments, to ensure that the bending member 201 is bent to different degrees. A plurality of adjusting members 40 with different lengths can be provided, and thus, a plurality of adjustments of the relative positions of the first mounting frame 10 and the second mounting frame 20 can be realized under the selection of the length of the adjusting members 40.

In some embodiments, please refer to fig. 5, fig. 5 is a schematic structural diagram of the adjusting element 40 in fig. 4 in another embodiment. In order to ensure that the bending piece 201 is bent to different degrees. The adjusting member 40 may be provided with a plurality of fixing portions 41, so that the distance between any two fixing portions 41 is different preset distances, and further, the relative position of the first mounting frame 10 and the second mounting frame 20 can be adjusted in various ways under the cooperation of the adjusting member 40.

In some embodiments, please refer to fig. 6, fig. 6 is a schematic structural view of the frame 200 in fig. 4 in another embodiment. The first positioning portion 12 and the second positioning portion 22 may be grooves for installing the mounting frames on, for example, the first mounting frame 10 and the second mounting frame 20, and the positioning portions, for example, the grooves, may have clamping portions 202 on side walls of the grooves so as to be clamped with the adjusting member 40. In some embodiments, the latch portion 202 is a latch or a catch or a dog.

The adjusting member 40 may be provided with a fixing portion 41 on an edge in the extending direction so as to be clamped with a positioning portion such as the clamping portion 202 when the adjusting member 40 is located in the positioning portion such as the groove. In some embodiments, the fixing portion 41 is a latch or a slot or a block.

In some embodiments, the clamping portions 202 are uniformly distributed in the extending direction of the groove, and the fixing portions 41 are uniformly distributed on the edge of the adjusting member 40 in the extending direction, so as to ensure that the bending member 201 is bent to different degrees.

In some embodiments, to ensure that the bending member 201 is bent to different degrees. The adjusting member 40 can have elastic deformation, and the elastic deformation of the adjusting member 40 can be adjusted by adjusting the area of the cross section of the adjusting member 40 perpendicular to the extending direction, so that various adjustments of the relative positions of the first mounting frame 10 and the second mounting frame 20 can be realized. Adjusting the size of the cross-section of the adjusting member 40 perpendicular to the extending direction may be achieved by adjusting the thickness of the adjusting member 40 in some embodiments. In some embodiments, a plurality of adjusting members 40 with different cross sections can be provided, and thus, a plurality of adjustments of the relative positions of the first and second mounting frames 10 and 20 can be realized under the selection of the cross sections of the adjusting members 40.

Referring to fig. 2, the material of the leg module 300 may be one or more hard materials. The leg module 300 is adapted to be worn between the head and the ears of a user, and can be connected to the frame 200, such as the first mounting frame 10 and the second mounting frame 20. The leg module 300 may include a first leg 301 connected to the first mounting frame 10, for example, the first connection portion 11, and a second leg 302 connected to the second mounting frame 20, for example, the second connection portion 21. The first leg 301 can be erected between the right ear and the head, and the second leg 302 can be erected between the left ear and the head, so as to implement wearing of the leg module 300. In some embodiments, the first leg 301 and/or the second leg 302 may be used to mount a control system.

It is understood that the terms "first leg", "second leg", and "leg" may be used interchangeably, and for example, "first leg" may also be referred to as "second leg" and "second leg" may also be referred to as "first leg".

Under the cooperation of the bending piece 201 and the adjusting piece 40, the frame 200 can be bent towards one side of the leg module 300 in the first direction a, so that the distance between the first connecting portion 11 and the second connecting portion 21 is reduced, the distance between the first leg 301 and the second leg 302 is reduced, the clamping force of the legs, such as the first leg 301, the second leg 302 and the head of the user, is improved, and the wearing is comfortable. When the bending member 201 is bent to a proper degree, the relative positions of the first mounting frame 10 and the second mounting frame 20 are fixed by the adjusting member 40.

In some embodiments, the reduced distance between the first leg 301 and the second leg 302 may expand the fit population of the product, for example, the head-mounted device 100 may be more adaptable to a customer with a smaller head size, so as to improve the adaptability of the product, and may reduce the manpower and resource investment for developing the product for different populations.

Referring to fig. 2, the legs, such as the first leg 301 and the second leg 302, can be rotatably connected to the connecting portions, such as the first connecting portion 11 and the second connecting portion 21. The rotational connection of the legs, e.g. the first leg 301, the second leg 302, to the frame 200 is realized, for example, by means of a rotating shaft. In one embodiment, the first leg 301 is pivotally connected to a connecting portion, such as the first connecting portion 11. In one embodiment, the second leg 302 is pivotally connected to a connecting portion, such as the second connecting portion 21. It will be appreciated that in some embodiments, legs, such as first leg 301 and second leg 302, may be fixedly attached to the frame 200.

The end of the first leg 301 remote from the frame 200, such as the first mounting frame 10, is movable toward the side near the second leg 302 or away from the second leg 302 when the first leg 301 is rotated relative to the frame 200, such as the first mounting frame 10. I.e. the first leg 301 is movable in the second direction B to the side of the second leg 302 or to the side remote from the second leg 302. The first leg 301 is movable in the second direction B to a side near the second leg 302 to move to the folded state. The first leg 301 is movable in the second direction B to a side away from the second leg 302 to move to the deployed state.

The end of the second leg 302 remote from the frame 200, such as the second mounting frame 20, can move toward the side near the first leg 301 or move toward the side remote from the first leg 301 when the second leg 302 rotates relative to the frame 200, such as the second mounting frame 20. I.e. the second leg 302 is movable in the second direction B to the side of the first leg 301 or to the side remote from the first leg 301. The second leg 302 is movable in the second direction B to one side of the first leg 301 to move to the folded state. The second leg 302 is movable in the second direction B to a side away from the first leg 301 to move to the deployed state.

In some embodiments, the degree of rotation of the legs, e.g., first leg 301, second leg 302, from the collapsed state to the expanded state is 70-110 °. In some embodiments, the degree of rotation is 90 °. It will be appreciated that the particular degree of rotation can be adjusted as desired.

In some embodiments, a space may be provided in the legs, such as the first leg 301 and the second leg 302, to accommodate the control system, so as to mount the control system on the legs, such as the first leg 301 and the second leg 302. It is understood that the control system may be mounted in the receiving space and/or the receiving space.

Referring to fig. 1 and 2, the functional lens module 400 may include a first functional lens 401 mounted on a frame 200, such as a first mounting frame 10, and a second functional lens 402 mounted on the frame 200, such as a second mounting frame 20. The first functional lens 401 may correspond to a right eye setting of a user, and the second functional lens 402 may correspond to a left eye setting of the user. In one embodiment, at least one of the first functional lens 401 and the second functional lens 402 can be omitted.

It is to be understood that the names of "first functional lens", "second functional lens", "third functional lens", and "functional lens" may be interchanged, for example, the "first functional lens" may also be referred to as "second functional lens", and the "second functional lens" may also be referred to as "first functional lens".

In some embodiments, when the first functional lens 401 is mounted on the first mounting frame 10, such as a ring structure or a semi-ring structure, surrounds the edge of the first functional lens 401. In some embodiments, when the second functional lens 402 is mounted on the second mounting frame 20, the second mounting frame 20 is disposed around the edge of the second functional lens 402, such as a ring structure or a semi-ring structure.

In some embodiments, the first functional lens 401 and the second functional lens 402 can be symmetrically disposed.

Functional lenses, such as first functional lens 401 and second functional lens 402, may comprise one or more lenses arranged in a stack. In some embodiments, the functional lenses, e.g., first functional lens 401, second functional lens 402, may comprise only one lens. In one embodiment, the function of the first functional lens 401 may be different from the function of the second functional lens 402. Of course, in some embodiments, the function of the first functional lens 401 may also be the same as the function of the second functional lens 402. Specifically, the functions of the first functional lens 401 and the second functional lens 402 can be adjusted within the technical scope known to those skilled in the art.

The lens can be made of one or more transparent or semitransparent materials such as glass, plastic and the like. The lens can also be made of one or more of transparent materials, semitransparent materials, opaque materials and the like for a certain light transmission effect.

In one embodiment, the lens may be a vision correction lens made of one or more of convex lens and concave lens, and other types of lenses or functional lenses (such as flat lens, anti-glare lens, colored lens (such as sunglasses), etc.) or functional films (such as antireflection film, polarization mode, filter film, electrochromic film, photochromic film, etc.) may be disposed in the vision correction lens. In one embodiment, the lens may be a myopic lens.

In other embodiments, the lens may also be other functional lenses such as flat, anti-glare, colored (e.g., sunglasses), etc.

In one embodiment, the lens may also be a photochromic device (e.g., a photochromic film). For example, the photochromic device can be made of a photochromic material, so that the photochromic device can change color after being excited by light with a certain wavelength. The photochromic material can be prepared by the technical scheme existing in the prior art within the understanding range of the skilled person, and the detailed description is omitted.

In an embodiment, the lens may also be an electrochromic device (e.g., an electrochromic film). For example, electrochromic devices may be made using electrochromic materials. The electrochromic material may be one of an inorganic electrochromic material and an organic electrochromic material. The inorganic electrochromic material may be tungsten trioxide. The organic electrochromic material can be one of polythiophene and derivatives thereof, viologen, tetrathiafulvalene, metal phthalocyanine compounds and the like. Of course, the electrochromic material can be manufactured by the technical solutions existing in the prior art within the scope understood by those skilled in the art, and will not be described in detail.

The electrochromic device may be electrically connected to a control system internal to the head-mounted device 100 to enable control of the electrochromic device.

In one embodiment, the lens may be an optical waveguide. The head mounted device 100 may present a virtual reality/augmented reality environment through an optical waveguide. In an embodiment, the optical waveguide may cooperate with a control system internal to the head-mounted device 100 to present a virtual reality/augmented reality environment. In some embodiments, the optical waveguide may be a planar grating waveguide such as a diffraction grating waveguide.

It can be understood that the functional lenses, such as the first functional lens 401 and the second functional lens 402, may be a structure formed by combining lenses in any of the embodiments described above, and are not described in detail.

Taking the functional lenses, such as the first functional lens 401 and the second functional lens 402, as the optical waveguide, the functional lenses, such as the first functional lens 401 and the second functional lens 402, are provided with an optical coupling-in portion and an optical coupling-out portion. The optical coupling-in light portion and the optical coupling-out light portion are connected together to form an optical path. Light emitted by the control system is coupled into the lens from the light coupling-in part and transmitted in the light path, and finally the light is coupled out of the lens at the light coupling-out part and is emitted into the eyes of a wearer and forms an image on the retina.

Referring to fig. 7, fig. 7 is a partial schematic structural view illustrating the connection between the frame 200 and the leg module 300 in fig. 2. In order to further adjust the clamping force of the leg module 300, such as the first leg 301 and the second leg 302, on the head of the user when the leg module 300, such as the first leg 301 and the second leg 302, is rotated and unfolded relative to the frame 200, the user can wear the leg module comfortably. A slack adjuster assembly 500 may be provided between the connecting portions, such as the first connecting portion 11 and the second connecting portion 21, and the leg module 300, such as the first leg 301 and the second leg 302.

One end of the slack adjuster 500 is fixedly connected to the connecting portions, such as the first connecting portion 11 and the second connecting portion 21, and the other end is fixedly connected to the leg module 300, such as the first leg 301 and the second leg 302. When the slack adjuster 500 is folded and unfolded, the leg module 300, for example, the first leg 301 and the second leg 302, can be rotated with respect to the frame 200.

The slack adjuster assembly 500 may include at least one pivot for rotatably connecting the frame 200, such as the first and second mounting frames 10, 20, and the leg module 300, such as the first and

second legs

301, 302.

In some embodiments, the pivotal connection of the frame 200, e.g., the first mounting frame 10, to the leg module 300, e.g., the first leg 301, is achieved by a slack adjuster assembly 500. In some embodiments, the pivotal connection of the frame 200, e.g., the second mounting frame 20, to the leg module 300, e.g., the second leg 302, is achieved by a slack adjuster assembly 500.

Referring to fig. 7 and 8, fig. 8 is a schematic structural view of the slack adjuster assembly 500 of fig. 7. The slack adjuster assembly 500 may include a first pivot 50 mounted to the connecting portions, such as the first connecting portion 11 and the second connecting portion 21, a second pivot 60 rotatably connected to the first pivot 50, and a third pivot 70 rotatably connected to the second pivot 60 and mounted to the legs, such as the first leg 301 and the second leg 302. The second pivot 60 is provided with a track 601, and the third pivot 70 slides in the track 601 to realize the relative rotation between the second pivot 60 and the third pivot 70.

It should be understood that the terms "first pivot", "second pivot", "third pivot", and "pivot" can be used interchangeably, such as "first pivot" can also be referred to as "second pivot" and "second pivot" can also be referred to as "first pivot".

The first pivot member 50 is rotatable about a first axis relative to the second pivot member 60 to allow the legs, such as the first leg 301 and the second leg 302, to be switched between a folded state and an unfolded state. The first pivot element 50 can rotate around the first axis and rotate to a position-limiting state abutting against the second pivot element 60.

The second pivoting member 60 can rotate around the second axis relative to the third pivoting member 70. When the first pivot element 50 and the second pivot element 60 are in the abutting limit state, they can rotate together around the second rotation axis relative to the third pivot element 70, so that the legs, such as the first leg 301 and the second leg 302, can be switched between the extended state and the rebounded state. When the legs, such as the first leg 301 and the second leg 302, are in the rebounding state, the clamping force of the legs, such as the first leg 301 and the second leg 302, on the head of the user can be improved, so that the wearing comfort is improved.

Referring to fig. 9 and 10, fig. 9 is an exploded view of the slack adjustment assembly 500 of fig. 8, and fig. 10 is an exploded view of the slack adjustment assembly 500 of fig. 8 from another perspective. The first pivot member 50 may be made of a rigid material. The first pivot element 50 can be installed in the accommodating space of the connecting portion, such as the first connecting portion 11 and the second connecting portion 21, so as to prevent the first pivot element 50 from being exposed, and improve the appearance of the product.

The first hinge 50 may include a first hinge body 51 installed on a connecting portion such as a receiving space, and a first rotating portion 52 disposed on the first hinge body 51 and rotatably connected to the second hinge 60. The first rotating part 52 rotates around the first axis relative to the second pivot member 60.

The first hinge body 51 is provided with a mounting portion 511 for mounting on a connecting portion, such as the first connecting portion 11 and the second connecting portion 21. In some embodiments, the mounting portion 511 may be a coupling hole, a snap-fit structure, a screw-fit structure, or the like. In some embodiments, the first pivot body 51 may also be fixed to the connecting portions, such as the first connecting portion 11 and the second connecting portion 21, by welding, plugging, clipping, bonding, or the like. In some embodiments, the first pivot body 51 and the connecting portions, such as the first connecting portion 11 and the second connecting portion 21, are integrated.

The first rotating part 52 is disposed on a side of the first hinge body 51 facing the second hinge member 60. In some embodiments, the first rotating portion 52 may be a rotating shaft. In some embodiments, the first rotating portion 52 may include a first connecting ear 521 and a second connecting ear 522 oppositely disposed and rotatably connected to the second pivot member 60. The first connecting lug 521 and the second connecting lug 522 rotate around the first rotation axis relative to the second pivot member 60. In some embodiments, the first connecting ear 521 and the second connecting ear 522 are disposed on opposite sides of the second pivot member 60 to be rotatably connected with the second pivot member 60.

It is understood that the first pivot element 50 may be omitted, and the second pivot element 60 may be directly rotatably connected to the connecting portions, such as the first connecting portion 11 and the second connecting portion 21, and may rotate around the first rotation axis.

Please refer to fig. 9 and 10. The second pivoting member 60 may include a first pivoting body 61 rotatably connected to the first pivoting member 50, such as the first rotating portion 52, and a limiting member 62 mounted on the first pivoting body 61 to form a rail 601. The first pivot body 61 rotates around a first axis relative to the first pivot member 50, such as the first rotating portion 52. The track 601 is used for mounting the third pivoting member 70, so that the second pivoting member 60 is rotatably connected to the third pivoting member 70 to rotate around the second rotation axis relative to the third pivoting member 70.

It is understood that the names of the "first rotating shaft", the "second rotating shaft", and the "rotating shaft" may be interchanged, for example, the "first rotating shaft" may also be referred to as the "second rotating shaft", and the "second rotating shaft" may also be referred to as the "first rotating shaft".

The first hinge body 61 may be made of a hard material. The first pivot body 61 can be installed in the accommodating space of the leg, such as the first leg 301 and the second leg 302, so that the first pivot body 61 is rotatably connected with the first pivot member 50, such as the first rotating portion 52, in the accommodating space, thereby preventing the first pivot body 61 from being exposed and improving the appearance of the product. That is, the first pivot 50, such as the first rotating part 52, can extend into the accommodating space of the legs, such as the first leg 301 and the second leg 302.

The first pivot main body 61 may include a second pivot body 611 connected to the limiting member 62, a second rotating portion 612 disposed on the second pivot body 611, and a limiting portion 613 disposed on the second pivot body 611 and/or the second rotating portion 612. The second rotating portion 612 is rotatably connected to the first pivot element 50, such as the first rotating portion 52, so as to rotate around the first rotating axis.

It can be understood that the names of the "first hinge body", the "second hinge body", and the "hinge body" may be mutually converted, for example, the "first hinge body" may also be referred to as the "second hinge body", and the "second hinge body" may also be referred to as the "first hinge body".

In addition, the names of the "first rotating portion", the "second rotating portion", the "rotating portion", and the like may be switched to each other, and for example, the "first rotating portion" may be referred to as the "second rotating portion" and the "second rotating portion" may be referred to as the "first rotating portion".

The second pivot body 611 may be fixed to the limiting member 62 by bolts, clamping structures, fastening structures, welding, bonding, and the like.

The second pivot body 611 has a limiting groove 614 disposed on a side facing the limiting member 62, so as to cooperate with the limiting member 62 to form the track 601. The cross section of the groove bottom surface 6141 of the limiting groove 614 in the radial direction of the second rotating shaft is arc-shaped.

The limiting groove 614 is used for yielding the third pivoting member 70, so that when the third pivoting member 70 is located in the limiting groove 614, the third pivoting member abuts against the groove bottom surface 6141, and slides on the groove bottom surface 6141 around the second rotation axis. It is understood that in some embodiments, the limiting groove 614 may be omitted, and the groove bottom surface 6141 is replaced by a partial surface of the second pivot body 611, that is, the cross section of the partial surface of the second pivot body 611 in the radial direction of the second rotation axis is arc-shaped.

The pressing block 615 is disposed in the limiting groove 614 to press the third pivot 70, so that when the first pivot 50 and the second pivot 60 are in the abutting limiting state and rotate together around the second rotation axis relative to the third pivot 70, a resilient force is generated, so that the legs, such as the first leg 301 and the second leg 302, are in the resilient state, and the holding force between the legs, such as the first leg 301 and the second leg 302, and the head of the user is increased, so that the wearing comfort is improved.

In some embodiments, the pressing block 615 is configured to abut the third pivot 70. The pressing block 615 is provided with a pressing face 6151. The distance from the cross section of the extrusion surface 6151 in the radial direction of the second rotating shaft to the second rotating shaft is gradually changed. For example, the distance from the cross section of the pressing surface 6151 in the radial direction of the second rotating shaft to the second rotating shaft gradually increases or gradually decreases.

Under the arrangement of the pressing surface 6151, the third pivot 70 slides on the pressing surface 6151 and slides to the position where the distance from the cross section of the pressing surface 6151 in the radial direction of the second rotating shaft to the second rotating shaft is the smallest. The third pivot 70 slides on the pressing surface 6151, and slides from the cross section of the pressing surface 6151 in the radial direction of the second rotation axis to the position where the distance from the second rotation axis is the smallest, to the position where the distance from the cross section of the pressing surface 6151 in the radial direction of the second rotation axis is the largest. The resilience force is gradually increased and/or changed from absent to present.

In some embodiments, the pressing surface 6151 is connected to the groove bottom surface 6141 in the radial direction of the second rotation axis, so that the third pivot 70 can slide from the pressing surface 6151 to the groove bottom surface 6141 when rotating around the second rotation axis. In some embodiments, the pressing face 6151 may be connected to the groove bottom surface 6141 at a position where the cross section in the radial direction of the second rotation axis has the smallest distance from the second rotation axis.

In some embodiments, the pressing block 615 may be omitted, and a pressing groove is provided in the limiting groove 614, and the pressing surface 6151 is a groove bottom surface of the pressing groove. That is, the pressing face 6151 may be connected to the groove bottom surface 6141 at a position where the section in the radial direction of the second rotation axis is the largest distance from the second rotation axis.

In some embodiments, the extrusion face 6151 may be formed by an extrusion slot along with the extrusion block 615.

It can be understood that the pressing surface 6151 is disposed such that the first pivot 50 and the second pivot 60 are in the abutting limiting state and rotate together around the second rotation axis relative to the third pivot 70, thereby achieving the transition between the unfolding state and the rebounding state of the leg, such as the first leg 301 and the second leg 302. As the degree of rotation of the first pivot element 50 and the second pivot element 60 about the second axis relative to the third pivot element 70 increases, the distance from the pressing position of the third pivot element 70 and the pressing surface 6151 to the second axis gradually increases, so that the resilience force gradually increases. I.e. the legs, e.g. first leg 301, second leg 302, may be in a zero resilience state while being in a deployed state. In some embodiments, when the legs, e.g., the first leg 301, the second leg 302, are resilient, the legs, e.g., the first leg 301, the second leg 302, may be between a folded state and an unfolded state, i.e., the legs, e.g., the first leg 301, the second leg 302, may be in a zero-resilient state while not being unfolded to the unfolded state. In some embodiments, the legs, such as the first leg 301 and the second leg 302, may be in a zero-spring-back state while being in a folded state, i.e., the first pivot 50 and the second pivot 60 may be rigidly connected without rotational connection. It will be appreciated that the zero springback condition is that the legs, such as the first leg 301 and the second leg 302, are subjected to a springback force of 0.

In addition, the legs, such as the first leg 301 and the second leg 302, may be switched between a folded state and a zero-resilience state, and may be switched between a zero-resilience state and a rebound state.

The second rotating portion 612 is disposed on a side of the second pivot body 611 facing the first pivot member 50. In some embodiments, the second rotating portion 612 may be a rotating shaft. In some embodiments, the second rotating portion 612 may include a third engaging lug 6121 and a fourth engaging lug 6122, which are oppositely disposed and rotatably connected to the first pivot element 50, such as the first rotating portion 52. The third tab 6121 and the fourth tab 6122 rotate around the first axis relative to the first pivot 50, for example, the first rotating portion 52.

It is to be understood that the terms "first engaging lug", "second engaging lug", "third engaging lug", "fourth engaging lug", and "engaging lug" may be used interchangeably, and for example, "first engaging lug" may also be referred to as "second engaging lug" and "second engaging lug" may also be referred to as "first engaging lug".

In some embodiments, the third tab 6121 and the fourth tab 6122 may be disposed between the first rotating portion 52, such as the first tab 521 and the second tab 522. In some embodiments, the third tab 6121 and the fourth tab 6122 may be disposed on both sides of the first rotating portion 52. In some embodiments, the first tab 521, the second tab 522, the third tab 6121, and the fourth tab 6122 may be staggered. For example, the first engaging lug 521 is located between the third engaging lug 6121 and the fourth engaging lug 6122, and the third engaging lug 6121 or the fourth engaging lug 6122 is located between the first engaging lug 521 and the second engaging lug 522. For example, the second engaging lug 522 is located between the third engaging lug 6121 and the fourth engaging lug 6122, and the third engaging lug 6121 or the fourth engaging lug 6122 is located between the first engaging lug 521 and the second engaging lug 522.

The limiting portion 613 is disposed on the second pivot body 611 and/or the second rotating portion 612 to give way to the first pivot member 50. When the second pivot element 60 rotates around the first rotation axis, it can rotate to a position where the limiting portion 613 abuts against the first pivot element 50. The second pivot 60 can rotate around the second axis with the first pivot 50 when the limiting portion 613 abuts against the first pivot 50.

The retaining member 62 may be made of a rigid material. The limiting member 62 is mounted on the second hinge body 611 to form a rail 601 with the second hinge body 611, such as the limiting groove 614. The limiting member 62 can be used to limit the third pivot element 70, and under the arrangement of the pressing surface 6151, the third pivot element 70 can slide on the pressing surface 6151 and slide to the position of the pressing surface 6151 with the minimum cross-sectional distance in the radial direction of the second rotation axis, that is, slide to one side of the limiting member 62, and then can abut against the limiting member 62.

The limiting member 62 is disposed such that the second pivoting member 60 can abut against the third pivoting member 70 for limiting. Further, the second pivoting member 60 is rotated around the second rotation axis from the abutting limit state of abutting and limiting with the third pivoting member 70 to the rebounding state of the first leg 301 and the second leg 302. In some embodiments, when the second pivot 60 and the third pivot 70 are in the abutting limit state, the second pivot 60 and the third pivot 70 are in the zero-resilience state at the same time due to the limit of the limit member 62 on the third pivot 70.

The limiting member 62 is provided with an arc surface 621 on a side facing the second pivot body 611 for abutting against the third pivot member 70. The cross section of the arc surface 621 in the radial direction of the second rotating shaft is arc-shaped to match with the groove bottom surface 6141 to limit the third pivot joint 70.

It is understood that in some embodiments, the first pivot element 50 may be omitted, and the second pivot element 60 may be directly rotatably connected to the connecting portions, such as the first connecting portion 11 and the second connecting portion 21, and may rotate around the first rotation axis. In some embodiments, the first pivot 50 may be omitted, and the second pivot 60 may be directly connected and fixed with the connecting portions, such as the first connecting portion 11 and the second connecting portion 21, so as to enable the legs, such as the first leg 301 and the second leg 302, to be switched between any two of the folded state, the zero-resilience state, and the resilience state. For example, the mounting portion 511 is provided on the second pivot member 60. In some embodiments, the legs, such as the first leg 301, may also be in a folded state when in a zero spring-back state. When the legs, such as the first leg 301 and the second leg 302, are in the expanded state, they are also in the sprung state.

Referring to fig. 8, 9 and 10, the third pivot 70 is installed in the accommodation space of the support legs, such as the first support leg 301 and the second support leg 302, to prevent the third pivot 70 from being exposed, thereby improving the appearance of the product. The third pivot 70 is adapted to be mounted in the track 601 of the second pivot 60 for providing a resilient force to the legs, such as the first leg 301 and the second leg 302, and adjusting the clamping force between the legs, such as the first leg 301 and the second leg 302, and the head of the user to improve the wearing comfort of the head-mounted device 100.

The third pivoting member 70 may include a second pivoting body 71 installed in the leg, such as the accommodating space, and sliding in the track 601, and an elastic member 72 installed on the second pivoting body 71 and abutting against the second pivoting member 60, such as the pressing surface 6151. The second pivoting body 71 can slide in the track 601 around the second rotating shaft, so that the pressing surface 6151 presses the elastic component 72. The resilient member 72 is resiliently deformable when compressed, thereby providing a resilient force to the legs, such as the first leg 301 and the second leg 302.

It is to be understood that the names of the "first hinge body", the "second hinge body", and the "hinge body" may be interchanged, for example, the "first hinge body" may also be referred to as the "second hinge body", and the "second hinge body" may also be referred to as the "first hinge body".

The second hinge body 71 may be made of a hard material. The second pivot body 71 can be installed in a leg, such as an accommodation space, so as to prevent the second pivot body 71 from being exposed, thereby improving the appearance of the product.

The second hinge body 71 may include a third hinge body 711 installed in a leg, for example, a receiving space, and a sliding portion 712 disposed on the third hinge body 711 and capable of being placed in the track 601. The sliding portion 712 can rotate around the second axis relative to the second pivot member 60 when sliding in the track 601.

The third pivot body 711 is provided with a mounting portion 7111 to be mounted on legs such as the first leg 301 and the second leg 302. In some embodiments, the mounting portion 7111 can be a connection hole, a snap-fit structure, a threaded structure, or the like. In some embodiments, the third pivot body 711 can also be fixed to the legs, such as the first leg 301 and the second leg 302, by welding, plugging, clipping, bonding, etc. In some embodiments, the third pivot body 711 is a unitary structure with the legs, such as the first leg 301 and the second leg 302.

An avoiding groove 7112 is formed in one side of the third pivot body 711 facing the second pivot member 60, and is used for accommodating the elastic element 72, so that the elastic element 72 is mounted on the third pivot body 711. The relief groove 7112 may be disposed corresponding to the pressing block 615 so that the resilient member 72 abuts the pressing face 6151.

The sliding portion 712 is disposed on a side of the third hinge body 711 facing the second hinge member 60. In some embodiments, the third pivot body 711 may have a curved plate-shaped structure. In some embodiments, the sliding portion 712 extends from the third pivot body 711 at an edge of the relief groove 7112. In some embodiments, the third pivot body 711 may be disposed between the first pivot body 61 and the limiting member 62 to abut against the groove bottom surface 6141 and the arc surface 621, respectively, so as to mount the third pivot body 711 in the track 601.

The elastic member 72 may include a sliding block 721 disposed in the third pivoting body 711, such as the receding groove 7112, for abutting against the pressing block 615, such as the pressing surface 6151, and an elastic member 722 disposed in the third pivoting body 711, such as the receding groove 7112, and between the sliding block 721 and the third pivoting body 711. The elastic member 722 can provide a force for the sliding block 721 to abut against the pressing block 615. When the sliding block 721 slides relative to the pressing block 615, the elastic member 722 may be pressed, so that the elastic member 722 is elastically deformed.

The slider 721 may include a slider body 7211 abutting the pressing block 615 and a stopper rod 7212 disposed on a side of the slider body 7211 remote from the pressing block 615. Wherein, one side of the sliding block main body 7211 far away from the extrusion block 615 can be abutted with the elastic piece 722. The limiting rod 7212 can be abutted to the third pivot body 711 to limit the sliding block 721. When the second pivot member 60 and the third pivot member 70 rotate relatively, the slider main body 7211 may press the elastic member 722, so that the stopper rod 7212 slides together with the slider main body 7211, and slides to a state where the stopper rod 7212 abuts against the third pivot body 711 for limitation.

The elastic member 722 is used to make the slider 721 abut against the pressing block 615, for example, the pressing surface 6151. The elastic member 722 may be an elastic rope, a spring leaf, or other elastically deformable structure. In some embodiments, one end of the elastic member 722 abuts against the sliding block 721, and the other end abuts against the third pivot body 711. In some embodiments, the resilient member 722 is a spring and is looped over the stop bar 7212.

It will be appreciated that in some embodiments, first pivot 50 may be mounted to legs, such as first leg 301 and second leg 302, via mounting portions 511. The third pivot 70 can be mounted on the connecting portions, such as the first connecting portion 11 and the second connecting portion 21, through the mounting portion 7111.

Referring to fig. 2, 11 and 12 together, fig. 11 is a cross-sectional view of the slack adjuster assembly 500 of fig. 8 in a zero-spring-back state, and fig. 12 is a cross-sectional view of the slack adjuster assembly 500 of fig. 11 in a spring-back state. In fig. 2, the legs, e.g. first leg 301, second leg 302, are in a zero spring-back state. In some embodiments, the legs, such as the first leg 301 and the second leg 302, may also be in the deployed state when in the zero spring-back state.

The states of the first pivot 50, the second pivot 60, and the third pivot 70 of the slack adjuster 500 of fig. 11 correspond to the zero-spring state of the legs of fig. 2, such as the first leg 301 and the second leg 302.

When the legs such as the first leg 301 and the second leg 302 in fig. 2 rotate in the second direction B for folding, the second pivot 60 and the third pivot 70 in fig. 11 rotate together in the third direction C around the first axis relative to the first pivot 50 because the elastic member 72 such as the sliding block 721 abuts against the pressing block 615 and the limiting member 62 abuts against the third pivot 70, until the legs such as the first leg 301 and the second leg 302 are in the folded state.

When the legs such as the first leg 301 and the second leg 302 in fig. 2 rotate in the second direction B to be in the rebounding state, the first pivot element 50 abuts against the limiting portion 613 of the second pivot element 60 in fig. 11 for limiting, so that the third pivot element 70 rotates in the fourth direction D around the second rotation axis relative to the first pivot element 50 and the second pivot element 60. And thus the elastic component 72, for example, the sliding block 721, slides relative to the pressing block 615, and the distance between the cross section of the pressing block 615 in the radial direction of the second rotation axis and the second rotation axis in the fourth direction D gradually increases, so that the distance between the sliding track of the sliding block 721 in the radial direction of the second rotation axis and the second rotation axis gradually increases, and thus the elastic component 72, for example, the elastic element 722, is compressed and elastically deformed. When the external force disappears, the resilient member 72, such as the resilient member 722, is elastically deformed to restore the original shape, so that the resilient member 72, such as the sliding block 721, slides relative to the pressing block 615, so that the distance between the sliding track of the sliding block 721 in the radial direction of the second rotating shaft and the second rotating shaft gradually decreases, and the legs, such as the first leg 301 and the second leg 302, rotate in the second direction B to change from the resilient state to the unfolding state. When the legs, such as the first leg 301 and the second leg 302, are in the rebounded state, the elastic force of the elastic component 72, such as the elastic member 722, can be restored to the original state through elastic deformation, so that the legs, such as the first leg 301 and the second leg 302, have adjustable clamping force with the head of the user, and the user can wear the leg more comfortably, and the leg can also be adapted to the user with a larger head size.

It is to be understood that the terms "first direction", "second direction", "third direction", "fourth direction", and "direction" may be used interchangeably, and for example, "first direction" may also be referred to as "second direction" and "second direction" may also be referred to as "first direction".

The user with a small head shape can be adapted through the adjusting piece 40, and the user with a large head shape can be adapted through the tightness adjusting assembly 500. In addition, the elastic component 72 is disposed in the extending direction of the legs, such as the first leg 301 and the second leg 302, so that the height of the legs, such as the first leg 301 and the second leg 302, in the axial direction of the first rotating shaft can be reduced, and the width of the legs, such as the first leg 301 and the second leg 302, in the radial direction of the first rotating shaft can be reduced, so that the structure of the head-mounted device 100 is more compact and beautiful.

In the several embodiments provided in the present application, it should be understood that the disclosed apparatus may be implemented in other manners. For example, the above-described apparatus embodiments are merely illustrative, and for example, a division of a module or a unit is only one type of logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one position, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the embodiment.

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.

The above description is only an example of the present application and is not intended to limit the scope of the present application, and all modifications of equivalent structures and equivalent processes, which are made by the contents of the specification and the drawings, or which are directly or indirectly applied to other related technical fields, are intended to be included within the scope of the present application.

Claims

1. A tightness adjustment assembly, comprising:

the first pivoting piece is provided with a squeezing surface;

the elastic component is mounted on the second pivot piece and abutted against the extrusion surface, and when the elastic component is elastically deformed, acting force acting on the extrusion surface is generated and drives the first pivot piece to rotate relative to the second pivot piece.

2. The slack adjustment assembly of claim 1, wherein the first pivot comprises:

a first pivot body; and

the limiting piece is installed on the first pivoting main body so as to form a track between the limiting piece and the first pivoting main body, the second pivoting piece is installed in the track, and the second pivoting piece is configured to slide in the track so as to rotate around the first rotating shaft.

3. The slack adjuster assembly of claim 2, wherein the first pivot body is provided with a limiting groove to cooperate with the limiting member to form the track, and the pressing surface is disposed in the limiting groove.

4. The slack adjuster assembly of claim 2, wherein the resilient member is configured to drive the first pivot member to rotate relative to the second pivot member and to rotate to a position in which the retaining member abuts against and retains the second pivot member.

5. The slack adjuster assembly of claim 2, wherein the pressing surface is disposed within the track, the second pivot including:

the first pin joint body is provided with a yielding groove, and the elastic component is installed in the yielding groove and is abutted against the extrusion surface in the track; and

and the sliding part is arranged on the first pivoting body and is installed in the track, and the sliding part is configured to slide in the track so as to rotate around the first rotating shaft.

6. The slack adjuster assembly of any one of claims 1-5, wherein the resilient member comprises:

the sliding block is abutted against the extrusion surface and slides on the extrusion surface in response to the relative rotation of the first pivot piece and the second pivot piece; and

and the elastic piece is arranged between the sliding block and the second pivoting piece, and is configured to drive the sliding block to slide towards one side of the extrusion surface relative to the second pivoting piece when elastically deformed.

7. The tightness adjustment assembly of claim 6, wherein a cross section of said pressing surface in a radial direction of said first rotational axis is tapered to a distance from said first rotational axis.

8. The tightness adjustment assembly of claim 7, wherein said slider slides relative to said second pivot and is slidable to a position of abutting limit with said second pivot in response to said slider sliding on said pressing surface.

9. The tightness adjustment assembly of claim 8, wherein said slider comprises:

a slider body abutting against the pressing surface;

the limiting rod is arranged on one side, far away from the extrusion surface, of the sliding block main body, the elastic piece is sleeved on the limiting rod and abutted to the sliding block main body, and the limiting rod is configured to slide relative to the second pivoting piece and can slide to be in a state of being abutted and limited by the second pivoting piece.

10. The tightness adjustment assembly of claim 1, further comprising:

and the third pivoting piece is rotatably connected with the first pivoting piece and rotates around the second rotating shaft.

11. The tension adjustment assembly of claim 10, wherein the third pivot is configured to rotate about the second axis relative to the first pivot and to a position in which it abuts the first pivot.

12. A slack adjuster assembly as set forth in claim 11 wherein said third pivot is configured to rotate to one side about said second axis relative to said first pivot or to the other side about said first axis relative to said second pivot with said first pivot when in abutting position with said first pivot.

13. The tightness adjustment assembly of claim 10, wherein said first pivot comprises:

a first pin joint body;

the rotating part is arranged on the first pivoting body and is used for being rotationally connected with the third pivoting piece;

the limiting part is arranged on the first pivoting body and/or the rotating part, and the third pivoting piece is configured to rotate around the second rotating shaft relative to the first pivoting piece and can rotate to a state of being abutted and limited by the limiting part.

14. A head-mounted device, comprising:

a mirror frame provided with a first connecting portion and a second connecting portion;

15. A head-wearing apparatus comprising a frame, a first leg and a second leg, a first pivot member, a second pivot member, and an elastic member, wherein the first pivot member is disposed on the frame, the first pivot member is provided with a pressing surface, the second pivot member is disposed on each of the first leg and the second leg, the second pivot member is rotatably connected to the first pivot member and rotates around a first rotation axis, the first leg rotates around the first rotation axis toward a side close to the second leg or rotates toward a side away from the second leg with respect to the frame, the second leg rotates around the first rotation axis toward a side close to the first leg or rotates toward a side away from the first leg with respect to the frame, the elastic member is mounted on the second pivot member and abuts against the pressing surface, when the elastic component is elastically deformed, acting force acting on the extrusion surface is generated, and the acting force drives the first supporting leg and the second supporting leg to rotate relative to the mirror frame respectively so as to be close to each other.

16. A head-mounted device, comprising:

a mirror frame;

a first pivot member, a second pivot member and a third pivot member, the first pivot member being mounted on one of the frame and the second leg, the third pivot piece is arranged on the other one of the spectacle frame and the second supporting leg, the first pivot piece is rotationally connected with the second pivot piece, and rotates around the first rotating shaft, the second pivoting piece is connected with the third pivoting piece in a rotating way and rotates around the second rotating shaft, the second leg is configured to rotate around the first rotating shaft or the second rotating shaft to a side close to the first leg or a side far away from the first leg, the second supporting leg is configured to rotate around the second rotating shaft to one side far away from the first supporting leg and can rotate to a state that the second pivoting piece is abutted and limited with the third pivoting piece, and a pressing surface is arranged on the second pivoting piece; and

the elastic component is mounted on the first pivot piece and abutted against the extrusion surface, when the elastic component is elastically deformed, an acting force acting on the extrusion surface is generated, and the acting force drives the second supporting leg to rotate around the first rotating shaft to be close to one side of the first supporting leg.