Hinge mechanism and smart glasses

Abstract

The application discloses a hinge mechanism and smart glasses, the hinge mechanism comprises a first connecting assembly, a wiring cavity is formed in the first connecting assembly, and a first inlet and a first outlet which are in communication with the wiring cavity are arranged on the first connecting assembly; a second connecting assembly is rotatably arranged outside the first connecting assembly; and a rotating assembly is arranged between the first connecting assembly and the second connecting assembly, and the first connecting assembly and the second connecting assembly are connected. The hinge mechanism and the smart glasses provided by the application solve the technical problem of insufficient reserved wiring space of the existing hinge.

Description

Technical Field

[0001] This invention relates to the field of head-mounted display technology, and more particularly to a hinge mechanism and smart glasses. Background Technology

[0002] Currently, in the field of head-mounted display devices, most products tend to be designed as smart glasses in the form of eyeglasses to reduce weight. Smart glasses typically consist of a frame and temples, with the temples being foldable. This means the temples are rotatably connected to the frame via hinges, which are fixed to the frame, while the temples are rotatably connected to the hinges via pivots. However, due to the limitations of existing hinge structures, the space reserved for wiring on the hinges is relatively small, making it inconvenient to arrange cables, heat pipes, or flexible circuit boards. Summary of the Invention

[0003] The main objective of this invention is to provide a hinge mechanism and smart glasses, which aims to solve the technical problem of insufficient wiring space in existing hinges.

[0004] To achieve the above objectives, embodiments of the present invention provide a hinge mechanism, the hinge mechanism comprising:

[0005] The first connecting component has a wiring cavity inside and is provided with a first inlet and a first outlet communicating with the wiring cavity;

[0006] The second connecting component is rotatably disposed outside the first connecting component; and

[0007] A rotating component is disposed between the first connecting component and the second connecting component to connect the first connecting component and the second connecting component.

[0008] Optionally, in one embodiment of the present invention,

[0009] The rotating component includes a rotating shaft and a shaft hole. The rotating shaft is selected from the first connecting component and the second connecting component, and the shaft hole is selected from the other.

[0010] Optionally, in one embodiment of the present invention, the hinge mechanism further includes an elastic element disposed between the first connecting component and the second connecting component.

[0011] Optionally, in one embodiment of the present invention, the elastic element is a torsion spring, the torsion spring includes a spring coil and a first torsion arm and a second torsion arm connected to the spring coil, the spring coil is sleeved on the outside of the rotating shaft, the first torsion arm is connected to the first connecting assembly, and the second torsion arm is connected to the second connecting assembly.

[0012] Optionally, in one embodiment of the present invention, the hinge mechanism further includes a first limiting portion disposed on the first connecting component and a second limiting portion disposed on the second connecting component. The first limiting portion is disposed circumferentially along the rotating shaft to form a mounting cavity together with the rotating shaft. The spring ring is disposed in the mounting cavity. The first limiting portion has a notch communicating with the mounting cavity. The first torsion arm and the second torsion arm extend out from the notch respectively. The second torsion arm abuts against the side of the second limiting portion away from the first torsion arm, and the first torsion arm abuts against the side wall of the notch.

[0013] Optionally, in one embodiment of the present invention, the second connecting component is sleeved on the outside of the second connecting component, and the second connecting component is provided with a second inlet communicating with the first inlet and a second outlet communicating with the first outlet.

[0014] Optionally, in one embodiment of the present invention, the first connection component includes:

[0015] First support;

[0016] A cylinder is connected to the first bracket. The wiring cavity, the first inlet, and the first outlet are located in the cylinder. The second connecting assembly is sleeved on the outside of the cylinder and is rotatably connected to the cylinder.

[0017] The second connection component includes:

[0018] Second support; and

[0019] A rotating cylinder is connected to the second support. The rotating cylinder is sleeved outside the cylinder and rotatably connected to the cylinder. The second inlet and the second outlet are located on the rotating cylinder.

[0020] Optionally, in one embodiment of the present invention, the first bracket is provided with a flange, which protrudes toward the axis of the cylinder.

[0021] Optionally, in one embodiment of the present invention, two second supports are provided at intervals along the axial direction of the rotating drum, and the two second supports are respectively located on both sides of the second outlet.

[0022] To achieve the above objectives, this invention provides a smart glasses system, which includes a frame, temples, and a hinge mechanism connecting the frame and the temples, wherein the hinge mechanism is the one described above.

[0023] Optionally, in one embodiment of the present invention, the first connecting component is connected to the frame by bolts or by insert injection molding; and / or,

[0024] The second connecting component is injection molded to the temple via bolts or inserts.

[0025] Compared to existing technologies, the technical solution proposed in this invention utilizes a first and second connecting component that are rotatably connected. This allows the second connecting component to rotate relative to the first connecting component, thereby enabling the hinge mechanism to open or fold. The rotating component allows for simple and convenient rotation of the second connecting component relative to the first connecting component. Furthermore, since the rotating component and the second connecting component are located outside the first connecting component, they do not occupy the space inside the wiring cavity of the first connecting component. This allows the wiring cavity to provide sufficient space for cables, heat pipes, and flexible circuit boards. When cables, heat pipes, and flexible circuit boards pass through the wiring cavity, they can be pre-bent arbitrarily to prevent stress on the temples. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the structure of an embodiment of the hinge mechanism of the present invention;

[0028] Figure 2 This is an exploded structural diagram of an embodiment of the hinge mechanism of the present invention;

[0029] Figure 3 This is a schematic diagram of the structure of the hinge mechanism and cable after assembly according to the present invention;

[0030] Figure 4 This is an exploded structural diagram of another embodiment of the hinge mechanism of the present invention.

[0031] Explanation of icon numbers:

[0032]

[0033]

[0034] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the embodiments of the present invention.

[0036] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0037] Furthermore, in the embodiments of this invention, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of the embodiments of this invention, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0038] In the embodiments of the present invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of the present invention according to the specific circumstances.

[0039] Furthermore, the technical solutions of the various embodiments of the present invention can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the protection scope required by the embodiments of the present invention.

[0040] Smart glasses are a popular electronic product that has seen rapid development with technological advancements. Current smart glasses typically consist of temples, a frame, and a hinge structure. The hinge connects the temples and frame, allowing the temples to open or fold. The frame houses numerous electronic components, with the mainboard mostly located within the temples. Cables and heat pipes in the smart glasses extend to the frame through the hinge structure. However, existing hinge structures, when connected via a pivot, occupy space within the frame, failing to provide sufficient room for the cabling, heat pipes, and other components.

[0041] In view of this, embodiments of the present invention propose a hinge mechanism and smart glasses, in which the second connecting component is rotatably disposed outside the first connecting component, thereby reducing the space occupied by the cavity and providing sufficient wiring space for cables, heat pipes, etc.

[0042] To better understand the above technical solution, the following detailed explanation is provided in conjunction with the accompanying drawings.

[0043] like Figure 1 As shown in the embodiment of the present invention, a hinge mechanism is provided, the hinge mechanism comprising:

[0044] The first connecting component 100 has a wiring cavity 130 inside, and is provided with a first inlet and a first outlet communicating with the wiring cavity 130;

[0045] The second connecting component 200 is rotatably disposed outside the first connecting component 100; and

[0046] A rotating component 300 is disposed between the first connecting component 100 and the second connecting component 200 to connect the first connecting component 100 and the second connecting component 200.

[0047] In the technical solution provided in this embodiment, the second connecting component 200 can rotate relative to the first connecting component 100 by rotating the first connecting component 100 and the second connecting component 200, thereby realizing the opening or folding of the hinge mechanism. The rotating component 300 allows for easy and convenient rotation of the second connecting component 200 relative to the first connecting component 100. Furthermore, since the rotating component 300 and the second connecting component 200 are located outside the first connecting component 100, they do not occupy the space of the wiring cavity 130 inside the first connecting component 100. This allows the wiring cavity 130 to provide sufficient wiring space for cables, heat pipes, and flexible circuit boards. When cables, heat pipes, and flexible circuit boards pass through the wiring cavity 130, they can be pre-bent arbitrarily to prevent stress on the temples.

[0048] Specifically, the hinge mechanism in this embodiment is used in a head-mounted display smart terminal device, preferably smart glasses. The smart glasses include temples, a frame, and a hinge structure. The hinge mechanism includes a first connecting component 100 and a second connecting component 200, wherein the first connecting component 100 is connected to the frame, and the second connecting component 200 is connected to the temples. The first connecting component 100 and the second connecting component 200 are connected by a rotating component 300. The rotating component 300 and the second connecting component 200 are disposed outside the first connecting component 100. It can be understood that the second connecting component 200 can be disposed on either side of the first connecting component 100, or it can be fitted over the first connecting component 100. The rotating assembly 300 connects the first connecting assembly 100 and the second connecting assembly 200, but does not extend into the interior of the first connecting assembly 100. Therefore, it does not occupy the wiring space of the wiring cavity 130 formed inside the first connecting assembly 100, thus providing sufficient wiring space for cables, heat pipes, and flexible circuit boards. This allows cables, heat pipes, and flexible circuit boards to bend or pre-bend freely when passing through the wiring cavity 130, preventing stress on the temple. Simultaneously, the first connecting assembly 100 is also provided with a first inlet and a first outlet. Cables, heat pipes, etc., enter the wiring cavity 130 from the first inlet and exit from the first outlet. Cables, heat pipes, etc., can be pre-bent when passing through the wiring cavity 130, facilitating their installation.

[0049] Furthermore, refer to Figure 2In one embodiment of the present invention, the rotating component 300 includes a rotating shaft 310 and a shaft hole 320. The rotating shaft 310 is selectively provided in one of the first connecting component 100 and the second connecting component 200, and the shaft hole 320 is selectively provided in the other. Specifically, the rotating shaft 310 and the shaft hole 320 cooperate; that is, one end of the rotating shaft 310 is rotatably disposed in the shaft hole 320, thus enabling relative rotation between the first connecting component 100 and the second connecting component 200. Moreover, the structure of the rotating shaft 310 and the shaft hole 320 is relatively simple, which simplifies the manufacturing process, reduces manufacturing complexity, and also reduces the space occupied by the hinge mechanism, meeting the design requirements of a compact and lightweight product. In one embodiment, the rotating shaft 310 can be disposed on the end face of the first connecting component 100 and extend towards the second connecting component 200. The shaft hole 320 is disposed on the end face of the second connecting component 200 facing the first connecting component 100, and the end of the rotating shaft 310 away from the first connecting component 100 is rotatably disposed in the shaft hole 320. In another embodiment, the rotating shaft 310 can also be disposed on the end face of the second connecting component 200 and extend towards the first connecting component 100. The shaft hole 320 is disposed on the end face of the first connecting component 100. In this case, the shaft hole 320 is not connected to the wiring cavity 130 to prevent the rotating shaft 310 from extending into the wiring cavity 130 and occupying space. That is to say, in this embodiment, the placement positions of the rotating shaft 310 and the shaft hole 320 are not limited. In actual application, the preferred position can be selected. For ease of description, this article uses the example of the rotating shaft 310 being disposed in the first connecting component 100 and the shaft hole 320 being disposed in the second connecting component 200 for illustration.

[0050] Furthermore, refer to Figure 2 In one embodiment of the present invention, the hinge mechanism further includes an elastic element 500, which is disposed between the first connecting assembly 100 and the second connecting assembly 200. The elastic element 500 provides elastic force when the second connecting assembly 200 rotates relative to the first connecting assembly 100. Preferably, the elastic element 500 can be a spring, an elastic sheet, or the like.

[0051] Furthermore, refer to Figure 2In one embodiment of the present invention, the elastic element 500 is a torsion spring, which includes a spring coil 510 and a first torsion arm 520 and a second torsion arm 530 connected to the spring coil 510. The spring coil 510 is sleeved on the outside of the rotating shaft 310. The first torsion arm 520 is connected to the first connecting assembly 100, and the second torsion arm 530 is connected to the second connecting assembly 200. In this embodiment, the elastic element 500 is a torsion spring, which can provide torque when the second connecting assembly 200 rotates relative to the first connecting assembly 100. It should be noted that when the second connecting assembly 200 rotates to the open state, in order to accommodate the usage needs of users with larger heads and tails, the second connecting assembly 200 needs to be opened further outward. At this time, the torsion spring can provide torque to buffer the continued rotation of the second connecting assembly 200. Typically, a torsion spring includes a spring coil 510 and a first torsion arm 520 and a second torsion arm 530 disposed on both sides of the spring coil 510. The spring coil 510 can be sleeved on the rotating shaft 310 to limit the position of the spring coil 510. The first torsion arm 520 is connected to the first connecting assembly 100, and the second torsion arm 530 is connected to the second connecting assembly 200. Thus, torque can be generated when the second connecting assembly 200 rotates relative to the first connecting assembly 100.

[0052] Furthermore, refer to Figure 2In one embodiment of the present invention, the hinge mechanism further includes a first limiting part 610 disposed on the first connecting component 100 and a second limiting part 620 disposed on the second connecting component 200. The first limiting part 610 is disposed along the circumference of the rotating shaft 310 to form a mounting cavity together with the rotating shaft 310. The spring ring 510 is disposed in the mounting cavity. The first limiting part 610 is provided with a notch communicating with the mounting cavity. The first torsion arm 520 and the second torsion arm 530 extend out from the notch respectively. The second torsion arm 530 abuts against the side of the second limiting part 620 away from the first torsion arm 520. The first torsion arm 520 abuts against the side wall of the notch. To facilitate the connection between the first torsion arm 520 and the first connecting assembly 100, and the second torsion arm 530 and the second connecting assembly 200, a first limiting part 610 is provided on the end face of the first connecting assembly 100. The first limiting part 610 is arranged around the rotating shaft 310 and protrudes towards the second connecting assembly 200. The protruding direction of the first limiting part 610 is parallel to the axial direction of the rotating shaft 310. The first limiting part 610 and the rotating shaft 310 are spaced apart to form a mounting cavity. The spring ring 510 is disposed in the mounting cavity, which can further limit the spring ring 510. To facilitate the passage of the first torsion arm 520 and the second torsion arm 530 through the first limiting part 610, a notch is provided on the first limiting part 610, forming a first sidewall 611 and a second sidewall 612. Meanwhile, a second limiting part 620 is provided on the end face of the second connecting assembly 200. The second limiting part 620 protrudes from the end face of the second connecting assembly 200. The first torsion arm 520 extends out from the notch and abuts against the first side wall 611. The second torsion arm 530 extends out from the notch along the second side wall 612 and abuts against the side of the second limiting part 620 opposite to the first torsion arm 520. In this way, the torsion spring is installed through the cooperation of the first side wall 611 and the second limiting part 620. It can be understood that when the first connecting assembly 100 rotates from the folded state to the open state, the torsion spring will generate torque.

[0053] Furthermore, in one embodiment of the present invention, the second connecting component 200 is sleeved on the outside of the first connecting component 100, and the second connecting component 200 has a second inlet communicating with the first inlet and a second outlet communicating with the first outlet. In this embodiment, the second connecting component 200 is sleeved on the outside of the first connecting component 100. It can be understood that the interior of the second connecting component 200 forms a cavity, and the first connecting component 100 is disposed within the cavity of the second connecting component 200. Preferably, the rotating component 300 is disposed on two inner walls along the axial direction of the cavity, that is, each inner wall is provided with a corresponding rotating component 300 connected to the first connecting component 100. To facilitate the insertion and exit of cables and heat dissipation pipes, the second connecting component 200 is provided with a second inlet communicating with the first inlet and a second outlet communicating with the first outlet.

[0054] Furthermore, refer to Figure 2-4In one embodiment of the present invention, the first connection component 100 includes:

[0055] First support 120;

[0056] The cylinder 110 is connected to the first bracket 120. The cable routing cavity 130, the first inlet and the first outlet are located in the cylinder 110. The second connecting assembly 200 is sleeved on the outside of the cylinder 110 and is rotatably connected to the cylinder 110.

[0057] The second connection component 200 includes:

[0058] Second support 220; and

[0059] The rotating cylinder 210 is connected to the second support 220. The rotating cylinder 210 is sleeved on the outside of the cylinder 110 and is rotatably connected to the cylinder 110. The second inlet and the second outlet are located on the rotating cylinder 210.

[0060] In this embodiment, the first bracket 120 can be connected to the frame, the second bracket 220 can be connected to the temple, the cylinder 110 is fixedly connected to the first bracket 120, and the rotating cylinder 210 is fixedly connected to the second bracket 220. The rotating cylinder 210 is sleeved on the outside of the cylinder 110, thus realizing a hinge structure connecting the temple and the frame. Preferably, the first bracket 120 is tangent to the cylinder 110, while the second bracket 220 extends radially along the rotating cylinder 210. It should be noted that the rotating shaft 310 is provided on the end face of the cylinder 110 facing the rotating cylinder 210, and the shaft hole 320 is provided on the end face of the rotating cylinder 210 facing the cylinder 110.

[0061] In one embodiment, reference is made to Figure 4A first recess 111 and a second recess 112 can be provided on the circumferential surface of the cylinder 110, forming a first protrusion 113 between the first recess 111 and the second recess 112. Simultaneously, an elastic arm 410 is provided on the second support 220, elastically connected to the second support 220 and elastically abutting against the first protrusion 113. During the rotation of the rotating cylinder 210, one end of the elastic arm 410 slides between the first recess 111 and the second recess 112. It can be understood that the elastic arm 410 extends along the length of the temple, thereby reducing the volume occupied in the axial space. When the rotating cylinder 210 rotates relative to the cylinder 110, the elastic arm 410 slides along the circumferential surface of the cylinder 110. To facilitate the user's perception of the open or folded state of the temple, the first recess 111 and the second recess 112 are provided on the circumferential surface of the cylinder 110. It is understandable that the first recess 111 corresponds to the folded state of the temple, and the second recess 112 corresponds to the open state of the temple. That is, when the elastic arm 410 slides to the first recess 111, the temple is folded; when the elastic arm 410 slides to the second recess 112, the temple is open. The elastic arm 410 slides between the first and second recesses 111 and 112. Due to the height difference between the convex and concave parts, the elastic arm 410 can quickly slide from the first convex part 113 to the first or second recess 111 or 112, causing a sudden change in the state of the elastic arm 410. The user can clearly feel the change in state and thus know that the temple is open or folded, giving the user a sense of luxury and improving the user experience. Specifically, the second bracket 220 can also be provided with a mounting groove, in which an elastic part 420 is provided. One end of the elastic arm 410 is connected to the elastic element 500, and the other end is slidably connected to the circumferential surface of the cylinder 110. Preferably, the elastic part 420 can be a spring or an elastic sheet. To further enhance the user experience, a third recess is provided on the first protrusion 113. As the elastic arm 410 slides along the circumferential surface of the cylinder 110, the alternating arrangement of the recess and the protrusion causes the elastic arm 410 to be compressed or return to its original position, producing a click sound, which increases the user's enjoyment and makes the user feel more pleasant.

[0062] Furthermore, refer to Figure 2 and Figure 3In one embodiment of the present invention, the first support 120 is provided with a flange 140, which protrudes towards the axis of the cylinder 110. To prevent the rotating cylinder 210 from squeezing cables or heat sinks during rotation, the first support 120 is provided with the flange 140, which, together with the first support 120, forms an open cable routing groove. The end of the flange 140 away from the first support 120 abuts against one side wall of the second inlet. It is understood that two opposing side walls are formed on both sides of the first inlet. When the rotating cylinder 210 is rotated to the open state, the first support 120 abuts against one of the two side walls of the second inlet; when the rotating cylinder 210 is rotated to the folded state, the end of the flange 140 away from the support abuts against the other side wall of the second inlet. This arrangement limits the rotation angle, prevents squeezing of cables or heat sinks, and ensures the normal use of the cables or heat sinks. It should be noted that the end of the first support 120 away from the cylinder 110 extends from the second inlet.

[0063] Furthermore, in one embodiment of the present invention, two second brackets 220 are provided at intervals along the axial direction of the rotating cylinder 210, and the two second brackets 220 are respectively located on both sides of the second outlet. In order to improve the reliability of installation, two first brackets 120 are provided, and the two second brackets 220 are located on opposite sides of the second outlet, with cables and heat dissipation pipes passing through the space between the two second brackets 220. It should be noted that, at this time, each second bracket 220 can be provided with an elastic arm 410 and an elastic element 500, and two sets of first recesses 111, second recesses 112, and first protrusions 113 need to be provided on the circumferential surface of the cylinder 110 to correspond to the elastic arms 410 respectively.

[0064] To achieve the above objectives, this invention provides a smart glasses system. The smart glasses include a frame, temples, and a hinge mechanism connecting the frame and temples. The hinge mechanism is the one described above. Specifically, the specific structure of the hinge mechanism refers to the above embodiments. Since this smart glasses system adopts all the technical solutions of the above embodiments, it possesses at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be elaborated further here.

[0065] Furthermore, in one embodiment of the present invention, the first connecting component is connected to the frame by bolts or injection molding with inserts; and / or, the second connecting component is connected to the temple by bolts or injection molding with inserts.

[0066] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made under the inventive concept of the present invention using the description and drawings of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A hinge mechanism, characterized in that, The hinge mechanism, used in smart glasses, includes: The first connecting assembly has a wiring cavity inside and is provided with a first inlet and a first outlet communicating with the wiring cavity; the first connecting assembly includes a first bracket and a cylinder connected to each other, and the wiring cavity, the first inlet and the first outlet are located in the cylinder; The second connecting component includes a rotating cylinder and a second bracket connected together. The rotating cylinder is sleeved on the outside of the cylinder and rotatably connected to the cylinder. The second bracket is provided with a mounting groove, and an elastic part is provided in the mounting groove. The second bracket extends radially along the rotating cylinder. The second bracket is used to connect with the temple of the smart glasses. A rotating assembly is disposed between the first connecting assembly and the second connecting assembly to connect the first connecting assembly and the second connecting assembly; and The elastic arm has one end connected to the elastic part and the other end slidably connected to the circumferential surface of the cylinder.

2. The hinge mechanism as described in claim 1, characterized in that, The rotating component includes a rotating shaft and a shaft hole. The rotating shaft is selected from the first connecting component and the second connecting component, and the shaft hole is selected from the other.

3. The hinge mechanism as described in claim 2, characterized in that, The hinge mechanism further includes an elastic element disposed between the first connecting component and the second connecting component.

4. The hinge mechanism as described in claim 3, characterized in that, The elastic element is a torsion spring, which includes a spring coil and a first torsion arm and a second torsion arm connected to the spring coil. The spring coil is sleeved on the outside of the rotating shaft. The first torsion arm is connected to the first connecting assembly, and the second torsion arm is connected to the second connecting assembly.

5. The hinge mechanism as described in claim 4, characterized in that, The hinge mechanism further includes a first limiting part disposed on the first connecting component and a second limiting part disposed on the second connecting component. The first limiting part is disposed circumferentially along the rotating shaft to form a mounting cavity together with the rotating shaft. The spring ring is disposed in the mounting cavity. The first limiting part has a notch communicating with the mounting cavity. The first torsion arm and the second torsion arm extend out from the notch respectively. The second torsion arm abuts against the side of the second limiting part away from the first torsion arm. The first torsion arm abuts against the side wall of the notch.

6. The hinge mechanism as described in any one of claims 1-5, characterized in that, The second connecting component is sleeved on the outside of the second connecting component, and the second connecting component has a second inlet communicating with the first inlet and a second outlet communicating with the first outlet.

7. The hinge mechanism as described in claim 6, characterized in that, The second inlet and the second outlet are located on the rotating drum.

8. The hinge mechanism as described in claim 7, characterized in that, The first bracket is provided with a flange, which protrudes towards the axis of the cylinder.

9. The hinge mechanism as described in claim 8, characterized in that, Two second supports are provided at intervals along the axial direction of the rotating drum, and the two second supports are respectively located on both sides of the second outlet.

10. A type of smart glasses, characterized in that, The smart glasses include a frame, temples, and a hinge mechanism connecting the frame and the temples, wherein the hinge mechanism is the hinge mechanism as described in any one of claims 1-9.

11. The smart glasses as described in claim 10, characterized in that, The first connecting component is connected to the frame by bolts or by insert injection molding; and / or, The second connecting component is injection molded to the temple via bolts or inserts.

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