Temple and eyeglasses

Abstract

The application relates to the technical field of glasses, and particularly provides a temple and glasses. The temple is provided with an ear hook part, the ear hook part is provided with a first elastic sheet extending along the extension direction of the temple and a flexible leg sleeve sleeved on the first elastic sheet, and the first elastic sheet is made of an elastic material; the first elastic sheet has a first state and a second state, in the first state, the first elastic sheet is bent along the width direction of the temple; the ear hook part is bent through the first elastic sheet to hook the ear; in the second state, the first elastic sheet is unfolded, and the ear hook part is cancelled to hook the ear; the first elastic sheet can be elastically deformed under the action of external force to switch the first state and the second state. Through the first elastic sheet arranged at the ear hook part of the temple, the ear can be hooked through the elastic force of the first elastic sheet, the fixing of the temple and the ear is formed, and the stability during wearing of the glasses is improved.

Description

Technical Field

[0001] This application relates to the field of eyeglasses technology, and in particular to a temple and eyeglasses. Background Technology

[0002] Eyeglasses have become an essential part of daily life for most people. Current eyeglass frames mainly consist of the frame and temples. During vigorous activity, eyeglasses can easily shake and fall off, affecting the user experience. Furthermore, with prolonged use, the temples themselves can loosen, leading to instability during daily wear. Utility Model Content

[0003] Therefore, it is necessary to provide a temple to improve the stability of glasses when worn.

[0004] The temple of the glasses is provided with an ear hook portion, the ear hook portion having a first elastic piece extending along the extension direction of the temple and a flexible temple sleeve sleeved on the first elastic piece, the first elastic piece being made of elastic material; the first elastic piece having a first state and a second state, in the first state, the first elastic piece bending along the width direction of the temple; the ear hook portion hooks the ear by bending the first elastic piece; in the second state, the first elastic piece unfolds, and the ear hook portion unhooks the ear; the first elastic piece can undergo elastic deformation under the action of external force to switch between the first state and the second state.

[0005] Understandably, by incorporating a first elastic tab at the ear hook of the temple, the elasticity of the tab allows it to hook onto the ear, securing the temple to the ear and improving the stability of the glasses during wear. This prevents the glasses from easily falling off during vigorous activity. Removing the glasses is simple; just return the first elastic tab to its extended position. The first elastic tab switches between a first and second state through its own elasticity, ensuring stable wear and easy removal.

[0006] In one embodiment, the first elastic sheet includes a first adjusting segment, a first connecting segment, and a second connecting segment. Along the extending direction of the first elastic sheet, the first adjusting segment connects the first connecting segment and the second connecting segment. In both the first and second states, the first connecting segment and the second connecting segment remain structurally fixed. The first adjusting segment is capable of elastic deformation. In the first state, the first adjusting segment is bent along the width direction of the temple. In the second state, at least a portion of the structure in the first adjusting segment remains straight, and the cross-section of the at least a portion of the structure perpendicular to its extending direction is arc-shaped. The first elastic sheet switches between the first and second states through the elastic deformation of the first adjusting segment.

[0007] In one embodiment, in the second state, the first adjustment segment is straight along the extension direction of the temple, and the cross section of the first adjustment segment perpendicular to its own extension direction is arc-shaped.

[0008] In one embodiment, in the second state, the first adjustment segment bends along the width direction of the temple; the degree of bending of the first elastic sheet in the first state is greater than the degree of bending of the first adjustment segment in the second state.

[0009] In one embodiment, in the second state, the first adjustment segment includes a first curved segment and a first straight segment connected to the first curved segment. The first curved segment is connected to the first connecting segment and curved along the width direction of the temple. The first straight segment is connected to the second connecting segment and extends straight along the extension direction of the temple. The cross-section of the first straight segment perpendicular to its own extension direction is arc-shaped.

[0010] In one embodiment, in the second state, the first adjustment segment includes a first straight segment and at least two first curved segments. One end of the first straight segment along its own extension direction is connected to at least one first curved segment, and at least one first curved segment is connected to the first connecting segment. The other end of the first straight segment along its own extension direction is connected to at least one other first curved segment, and at least one other first curved segment is connected to the second connecting segment. The first curved segment is curved along the width direction of the temple, and the first straight segment extends straight along the extension direction of the temple. The cross-section of the first straight segment perpendicular to its own extension direction is arc-shaped.

[0011] In one embodiment, the radius of curvature r1 of the arc is in the range of 0.05mm ≤ r1 ≤ 50mm.

[0012] In one embodiment, along the thickness direction of the temple, the size of the first elastic piece is m, and the size of the temple is n, 0.2n≤m≤0.9n; and / or, along the width direction of the temple, the size of the first elastic piece is e, and the size of the temple is f, 0.01f≤e≤0.5f.

[0013] In one embodiment, the temple further includes a pressing portion connected to the end of the ear hook portion and protruding outward relative to the ear hook portion along the width direction of the temple.

[0014] In one embodiment, the temple includes a first segment and a second segment connected to the first segment, the first segment being for connection to the frame, and the second segment having the ear hook portion.

[0015] In one embodiment, the second segment further has a limiting portion connected to the ear hook portion, the limiting portion being movably connected to the first segment, and the limiting portion being movable relative to the first segment relative to the temple extension direction and locking.

[0016] In one embodiment, the temple further includes a limiting member; one of the first segment and the limiting member is sleeved on the other, at least one of the first segment and the limiting member is provided with a plurality of spaced positioning holes along the temple extension direction, and the other is provided with a mating hole along the temple extension direction; the limiting member passes through the mating hole and the corresponding positioning hole and locks the first segment and the limiting member.

[0017] This application also provides eyeglasses. The eyeglasses include a frame, a connecting structure, and the aforementioned temples. One end of the temple along its extension direction is provided with a connecting end. The frame has a post. The connecting structure connects the post and the connecting end. The connecting structure includes a second elastic sheet made of an elastic material. The second elastic sheet has a third state and a fourth state. In the third state, along the thickness direction of the temple, the second elastic sheet deforms and bends outwards towards the temple, and the end of the second elastic sheet connected to the connecting end retracts towards the inwards of the temple, causing the temple to close relative to the frame. In the fourth state, the second elastic sheet unfolds, and the temple opens relative to the frame. The second elastic sheet can switch between the third and fourth states by external force. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 A schematic diagram of the structure of the first elastic piece in the temple of the eyeglass provided in this application in the first state;

[0020] Figure 2 A schematic diagram of the structure of the first elastic piece in the temple of the eyeglass provided in this application in the second state;

[0021] Figure 3 A schematic diagram of the ear hook portion of the temple provided in this application;

[0022] Figure 4 A schematic diagram of the structure of the first elastic piece in the temple of the eyeglass provided in this application;

[0023] Figure 5A cross-sectional view of the first elastic piece in the temple of the mirror provided in this application;

[0024] Figure 6 This is a schematic diagram of the structure of the glasses provided in this application when they are opened;

[0025] Figure 7 for Figure 6 A magnified view of a section at point A in the middle;

[0026] Figure 8 A schematic diagram of the structure of one temple of the eyeglasses provided in this application when it is folded up;

[0027] Figure 9 for Figure 8 A magnified view of a section at point B in the middle;

[0028] Figure 10 This is a schematic diagram of the structure of the second elastic plate in the eyeglasses provided in this application;

[0029] Figure 11 A cross-sectional view of the second elastic element in the eyeglasses provided in this application.

[0030] Reference numerals: 100, eyeglasses; 10, temple; 101, first segment; 102, second segment; 103, positioning hole; 11, connecting end; 12, ear hook; 121, first elastic piece; 1211, first adjustment segment; 12111, first curved segment; 12112, first straight segment; 1212, first connecting segment; 1213, second connecting segment; 122, temple sleeve; 13, pressing part; 14, limiting part; 20, frame; 21, post head; 30, connecting structure; 31, second elastic piece; 311, third connecting segment; 312, fourth connecting segment; 313, second adjustment segment; 3131, second curved segment; 3132, second straight segment; 32, connecting sleeve; 321, groove; 40, locking element; 50, limiting element; 51, stop plate; 52, limiting post. Detailed Implementation

[0031] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0032] It should be noted that when a component is referred to as being "fixed to," "set on," or "properly placed on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application's specification are for illustrative purposes only and do not represent the only possible implementation.

[0033] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0034] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the horizontal width of the first feature is greater than that of the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the horizontal width of the first feature is less than that of the second feature.

[0035] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used in this application includes any and all combinations of one or more of the associated listed items.

[0036] Please see Figures 1 to 5 This application provides a temple 10, which includes an ear hook portion 12 to hook onto the ear and form a stable fit when worn.

[0037] like Figures 6 to 11 This application also provides a pair of glasses 100, including a frame 20 and the aforementioned temples 10, the temples 10 being connected to the frame 20, and the glasses 100 achieving wearing stability through the aforementioned temples 10.

[0038] like Figures 1 to 3As shown, in a specific embodiment, the ear hook portion 12 includes a first elastic piece 121 extending along the extension direction of the temple 10 and a flexible temple sleeve 122 sleeved on the first elastic piece 121. The first elastic piece 121 is made of an elastic material. Thus, the first elastic piece 121 is elastic, and through the action of elastic force, it facilitates the ear hook portion 12 to quickly hook onto the ear or quickly release the restriction on the ear, making it more effortless. In addition, by providing the flexible temple sleeve 122, it is convenient to wrap around the first elastic piece 121, which helps to protect the first elastic piece 121. The flexible material can adapt to the elastic deformation of the first elastic piece 121 and also provides support for it. The soft touch of the temple sleeve 122 reduces pressure on the ear and improves the user experience.

[0039] Specifically, the first elastic sheet 121 has a first state and a second state, such as Figure 1 As shown, in the first state, the first elastic piece 121 is bent along the width direction of the temple 10; the ear hook portion 12 is bent through the first elastic piece 121 to hook the ear; as Figure 2 As shown, in the second state, the first elastic piece 121 unfolds and the ear hook 12 is no longer hooked onto the ear; the first elastic piece 121 can undergo elastic deformation under the action of external force to switch between the first state and the second state.

[0040] Thus, in the second state, the first elastic piece 121 unfolds. At this time, the first elastic piece 121 stores elastic potential energy, which is immediately released when switching from the second state to the first state, promoting rapid bending of the first elastic piece 121 so that the temple 10 can hook onto the ear. When switching from the first state to the second state, the first elastic piece 121 unfolds under force to release the ear hook, making it easier to remove and less likely to squeeze the face. At this time, the first elastic piece 121 can store elastic potential energy internally and remain stable. In use, only a slight force is applied to the first elastic piece 121 to cause it to elastically deform or return to its original position, without needing to forcefully twist the ear hook 12, making switching easier and less strenuous.

[0041] In summary, a first elastic piece 121 is provided in the ear hook portion 12 of the temple 10. The first and second states can be flexibly switched by storing and releasing the elastic potential energy inside the first elastic piece 121. This makes it easy to hook the ear quickly after the glasses 100 is worn, ensuring the stability of the wearing and making the glasses 100 less likely to slip off. For people with myopia, wearing stable glasses 100 can also promote the stability of myopia and slow down the increase of myopia.

[0042] It should be noted that, in this application, when worn, the width direction of the temple 10 is consistent with or tends to be consistent with the direction of gravity. Furthermore, along the thickness direction of the temple 10, the side of the temple 10 closer to the frame 20 is the inner side of the temple 10, and the side of the temple 10 away from the frame 20 is the outer side of the temple 10. In actual use, during wearing, the inner side is closer to the face, and the outer side is away from the face.

[0043] In an optional embodiment, the first elastic piece 121 includes a first adjusting section 1211, a first connecting section 1212, and a second connecting section 1213. Along the extending direction of the first elastic piece 121, the first adjusting section 1211 is connected between the first connecting section 1212 and the second connecting section 1213. The first adjusting section 1211 is capable of elastic deformation. The first elastic piece 121 switches between a first state and a second state through the elastic deformation of the first adjusting section 1211. In the first state and the second state, the first connecting section 1212 and the second connecting section 1213 remain structurally fixed, that is, the first connecting section 1212 and the second connecting section 1213 do not undergo elastic deformation, but this does not mean that they are completely stationary. At least one of the first connecting section and the second connecting section can be used to connect with other parts of the temple.

[0044] Specifically, in the first state, the first adjustment segment 1211 is bent along the width direction of the temple 10; in the second state, at least a portion of the structure in the first adjustment segment 1211 remains straight, and the cross-section of at least a portion of the structure perpendicular to its extension direction is arc-shaped. That is, the straight portion of the structure has an arc-shaped cross-section perpendicular to its extension direction. Thus, in the second state, the first adjustment segment 1211 can form an arc-shaped structure, making its cross-section perpendicular to its extension direction arc-shaped. The arc-shaped structure can provide effective support, thereby maintaining the straightness of at least a portion of the structure to store elastic potential energy internally. During the transition from the second state to the first state, the first adjustment segment 1211 is subjected to an external force, the arc-shaped support structure is broken by the external force, releasing elastic potential energy, and the first adjustment segment 1211 bends to hook the ear, thereby achieving the transition from the second state to the first state.

[0045] In the first embodiment, in the second state, the first adjustment segment 1211 is straight along the extension direction of the temple 10, and the cross-section of the first adjustment segment 1211 perpendicular to its extension direction is arc-shaped. That is, in the second state, the first adjustment segment 1211 is straight overall, which makes the first elastic piece 121 straight overall, which is beneficial for the ear hook portion 12 to completely eliminate the restriction on the ear, allowing the user to directly and quickly remove the glasses 100, and during the removal process, the straight first elastic piece 121 will not put pressure on the face.

[0046] In the second embodiment, such as Figure 2As shown, in the second state, the first adjustment section 1211 bends along the width direction of the temple 10. Figure 1 and Figure 2 As shown, the degree of curvature of the first adjustment segment 1211 in the first state is greater than that in the second state. Thus, the first elastic sheet 121 can switch between the first and second states by varying the degree of curvature of the first adjustment segment 1211, making operation simple. In the second state, the first elastic sheet 121 is slightly curved overall due to the curvature of the first adjustment segment 1211, which prevents it from immediately slipping off the face while releasing the ear, providing a cushioning effect.

[0047] like Figures 1 to 5 As shown, in a specific embodiment, the first adjustment section 1211 includes a first curved section 12111 and a first straight section 12112 connected to the first curved section 12111. The first curved section 12111 is connected to the first connecting section 1212 and is curved along the width direction of the temple 10. The first straight section 12112 is connected to the second connecting section 1213 and extends straight along the extension direction of the temple 10. The cross-section of the first straight section 12112 perpendicular to its own extension direction is arc-shaped.

[0048] Thus, the first adjusting segment 1211 can change its overall curvature through the elastic deformation of the first straight segment 12112. In the second state, the cross-section of the first straight segment 12112 perpendicular to its extension direction is arc-shaped. The arc-shaped structure can form effective support to keep the first straight segment 12112 straight. At this time, the overall curvature of the first adjusting segment 1211 is small, mainly due to the bending of the first curved segment 12111. The first straight segment 12112 is tangent to the first curved segment 12111 to make the first adjusting segment 1211 have a smooth curvature. When the first straight segment 12112 is subjected to external force, the arc-shaped support structure is broken, and the first straight segment 12112 releases elastic potential energy and bends, causing the entire first adjusting segment 1211 to bend further to hook the ear, realizing the switch from the second state to the first state.

[0049] In the third embodiment, in the second state, the first adjustment section 1211 includes a first straight section 12112 and at least two first curved sections 12111. One end of the first straight section 12112 along its own extension direction is connected to at least one first curved section 12111, and the at least one first curved section 12111 at this end is connected to the first connecting section 1212. The other end of the first straight section 12112 along its own extension direction is connected to at least another first curved section 12111, and the at least another first curved section 12111 at this end is connected to the second connecting section 1213. The first curved section 12111 is curved along the width direction of the temple 10, and the first straight section 12112 extends straight along the extension direction of the temple 10. The cross-section of the first straight section 12112 perpendicular to its own extension direction is arc-shaped.

[0050] Thus, the first adjustment segment 1211 can change its overall curvature through the elastic deformation of the first straight segment 12112. In the second state, the cross-section of the first straight segment 12112 perpendicular to its extension direction is arc-shaped, and the arc-shaped structure can form effective support to keep the first straight segment 12112 straight. The first adjustment segment 1211 has first curved segments 12111 at both ends of the first straight segment 12112 along its extension direction, so that the entire first elastic piece 121 can form a slight limit with the ear in the second state, so that the glasses do not immediately slip off the face when the temple 10 releases the ear, thus playing a buffering role. When switching to the first state, the first straight segment 12112 releases elastic potential energy and bends under external force, so as to form a smooth curved arc together with the first curved segments 12111 at both ends of its extension direction to hook the ear.

[0051] like Figure 4 As shown, in a specific embodiment, along the extending direction of the first elastic sheet 121, one end of the first adjusting segment 1211 connected to the first connecting segment 1212 is gradually tapered toward the first connecting segment 1212, and one end of the first adjusting segment 1211 connected to the second connecting segment 1213 is gradually tapered toward the second connecting segment 1213, so as to form a good transition and reduce stress concentration when the first adjusting segment 1211 undergoes bending changes.

[0052] In a specific embodiment, the first connecting segment 1212, the first adjusting segment 1211, and the second connecting segment 1213 are integrally formed.

[0053] like Figure 5As shown, in a specific embodiment, the radius of curvature r1 of the first elastic sheet 121 when its cross-section is arc-shaped is in the range of 0.05mm ≤ r1 ≤ 50mm. If the radius of curvature of the arc is too large, the degree of bending is small, the support strength is low, and the first elastic sheet 121 is not easy to maintain the second state; if the radius of curvature of the arc is too small, the degree of bending is large, the support strength is high, and a larger force is required to bend the first elastic sheet 121 to hook the ear, which is more strenuous. Therefore, by limiting the radius of curvature of the arc, the support of the first elastic sheet 121 in the second state is ensured, while not requiring excessive force when hooking the ear is needed. For example, r1 = 0.05mm, 9mm, or 50mm.

[0054] In a specific embodiment, the first elastic sheet 121 in the second state is processed by high-temperature quenching or die casting during production, so that the first elastic sheet 121 can remain stable in the second state, and the stability is enhanced by the arc-shaped structure, while the elasticity of the sheet can achieve the switching between the first state and the second state.

[0055] In one specific embodiment, the first elastic sheet 121 may be made of stainless steel, which has a high elastic modulus and can be used for a long time.

[0056] In another embodiment, the first elastic sheet 121 can also be made of manganese steel, which has the characteristics of high elasticity and low cost, making it easy to achieve mass production.

[0057] In other embodiments, the first elastic sheet 121 may also be made of materials such as memory titanium or β titanium, which can make the eyeglasses 100 frame lighter while having super elasticity.

[0058] In further embodiments, the first elastic sheet 121 may also be made of elastic plastic.

[0059] like Figure 6 As shown, in a specific embodiment, the size of the first elastic piece 121 along the thickness direction of the temple 10 is m, and the size of the temple 10 is n, where 0.2n ≤ m ≤ 0.9n. If the size of the first elastic piece 121 along the thickness direction of the temple 10 is small, the cross-section perpendicular to the extension direction of the first elastic piece 121 is difficult to form an arc, resulting in insufficient support in the second state. If the size of the first elastic piece 121 along the thickness direction of the temple 10 is large, it is more difficult to hook the ear, and it is easy to squeeze the auricle, causing discomfort. Therefore, by limiting the size of the first elastic piece 121 along the thickness direction of the temple 10, it is ensured that the first elastic piece 121 has sufficient support in the second state, while not requiring too much effort when hooking the ear, thus reducing pressure on the auricle. For example, m = 0.2n, 0.5n, or 0.9n.

[0060] like Figure 3 As shown, in a specific embodiment, the size of the first elastic piece 121 along the width direction of the temple 10 is e, and the size of the temple 10 is f, where 0.01f ≤ e ≤ 0.5f. If the size of the first elastic piece 121 along the width direction of the temple 10 is large, it will be difficult to bend and release its elastic force, making it more difficult to hook the ear and putting more pressure on the ear; if the size of the first elastic piece 121 along the width direction of the temple 10 is small, there may be structural strength issues. Therefore, by limiting the size of the first elastic piece 121 along the width direction of the temple 10, the structural strength of the first elastic piece 121 is ensured, and the first elastic piece 121 is made easy to bend to hook the ear without putting too much pressure on the ear. For example, e = 0.01f, 0.2f, or 0.5f.

[0061] like Figures 1 to 3 As shown, in a specific embodiment, the temple 10 further includes a pressing portion 13, which is connected to the end of the ear hook portion 12 and protrudes outward relative to the ear hook portion 12 along the width direction of the temple 10. Thus, the pressing portion 13 has a larger area relative to the ear hook portion 12 to contact the ear, which helps to distribute pressure on the ear. Furthermore, the pressing portion 13 does not contain a first elastic piece 121, which helps to ensure ear comfort.

[0062] In a specific embodiment, the pressing part 13 and the ear hook part 12 are integrally formed to reduce assembly steps and improve production efficiency. Specifically, the pressing part 13 is formed by a flexible leg sleeve 122 to reduce pressure on the ear.

[0063] like Figure 1 , Figure 2 , Figure 6 and Figure 8 In a specific embodiment, the temple 10 includes a first segment 101 and a second segment 102 connected to the first segment 101. The first segment 101 is used to connect to the frame 20, and the second segment 102 has an ear hook portion 12. Thus, by forming the ear hook portion 12 in segments, it is easier to assemble the first elastic piece 121. The first segment 101 and the second segment 102 are processed separately before assembly, which helps to improve assembly efficiency.

[0064] like Figure 1 and Figure 2As shown, in a further embodiment, the second segment 102 also has a limiting portion 14 connected to the ear hook portion 12. The limiting portion 14 is movably connected to the first segment 101, and the limiting portion 14 can move and lock relative to the first segment 101 along the extension direction of the temple 10. This allows the user to adjust the overall length of the temple 10 by moving the first segment 101 and the second segment 102 along the extension direction of the temple 10 according to their head size. This facilitates better fit and hooking of the ear hook portion 12 to the user's ear when operating it, improving fit, comfort, and stability.

[0065] In a specific embodiment, the ear hook portion 12 and the limiting portion 14 are independently processed and then injection molded together. Alternatively, the first elastic sheet 121 is injection molded and connected to the limiting portion 14, and then the leg sleeve 122 is fitted onto the first elastic sheet 121 and connected to the limiting portion 14.

[0066] like Figure 1 , Figure 2 and Figure 6 As shown, in a specific embodiment, the temple 10 further includes a limiting member 50; one of the first segment 101 and the limiting part 14 is sleeved on the other, at least one of the first segment 101 and the limiting part 14 is provided with a plurality of spaced positioning holes 103 along the extending direction of the temple 10, and the other is provided with a mating hole along the extending direction of the temple 10; the limiting member 50 passes through the mating hole and the corresponding positioning hole 103 and locks the first segment 101 and the limiting part 14.

[0067] Thus, when the limiting part 14 moves to a suitable position relative to the first segment 101, it can pass through the corresponding mating hole and positioning hole 103 through the limiting member 50, and the hole wall of the mating hole and the hole wall of the positioning hole 103 respectively form an effective limit with the limiting member 50.

[0068] like Figure 6 As shown, in a specific embodiment, the limiting member 50 is provided with a stop plate 51 and at least two limiting posts 52 respectively connected to the stop plate 51. The at least two limiting posts 52 are spaced apart along the extension direction of the temple 10. One of the first segment 101 and the second segment 102 can be engaged with the limiting post 52 to achieve locking. The operation is simple and the disassembly and adjustment are convenient.

[0069] like Figures 6 to 9 As shown, in the eyeglasses 100 provided in this application, the frame 20 is provided with a head 21, and the temple 10 is provided with a connecting end 11 at one end along its own extension direction. The eyeglasses 100 also includes a connecting structure 30, which connects the head 21 and the connecting end 11. The connecting structure 30 connects the frame 20 and the temple 10, and realizes the complete folding and opening of the temple 10 relative to the frame 20.

[0070] like Figures 6 to 11 As shown, in a specific embodiment, the connecting structure 30 includes a second elastic piece 31, which is made of an elastic material. The second elastic piece 31 has a certain elasticity to adapt to the deformation required when the temple 10 opens and closes relative to the frame 20. At the same time, the elastic force promotes the rapid opening and closing of the temple 10 relative to the frame 20, making it easier for the wearer.

[0071] In a specific embodiment, the second elastic sheet 31 has a third state and a fourth state; such as Figure 8 and Figure 9 As shown, in the third state, along the thickness direction of the temple 10, the second elastic piece 31 deforms and bends outwards towards the temple 10, and the end of the second elastic piece 31 connected to the connecting end 11 retracts towards the inwards of the temple 10, causing the temple 10 to close relative to the frame 20; as Figure 6 and Figure 7 As shown, in the fourth state, the second elastic sheet 31 is unfolded, and the temple 10 is open relative to the frame 20; or, in the fourth state, the second elastic sheet 31 is deformed and bent inward along the thickness direction of the temple 10, and the end of the second elastic sheet 31 connected to the connecting end 11 extends outward toward the temple 10. The second elastic sheet 31 is set at an angle to the temple 10, and the temple 10 extends in the thickness direction of the frame 20, opening relative to the frame 20. The second elastic sheet 31 can switch between the third and fourth states by external force. Thus, in the fourth state, the second elastic sheet 31 is unfolded. At this time, the second elastic sheet 31 stores elastic potential energy inside, so that it is immediately released when switching from the fourth state to the third state, promoting the rapid bending of the second elastic sheet 31 to quickly close the temple 10 relative to the frame 20. When switching from the third state to the fourth state, the second elastic sheet 31 is unfolded by force to open the temple 10 relative to the frame 20. The second elastic sheet 31 can store elastic potential energy inside and remain stable.

[0072] With the arrangement of the first elastic piece 121 and the second elastic piece 31, the second elastic piece 31 allows the temple 10 to open quickly relative to the frame 20, and the first elastic piece 121 in the ear hook portion 12 can hook onto the ear, ensuring stability during wear. When removing the glasses, the elasticity of the first elastic piece 121 releases the ear hook, and force is applied to the second elastic piece 31 to quickly close the temple 10. Throughout this process, since the first elastic piece 121 bends along the width direction of the temple 10, while the second elastic piece 31 bends along the thickness direction of the temple 10, their bending and repositioning directions are different, preventing interference or impact. For example, when opening the temple 10, the vibration generated by the bending of the second elastic piece 31 does not affect the ear hook portion 12, which remains stable. After wearing, external force is used to deform the first elastic piece 121 in the ear hook portion 12 to hook onto the ear.

[0073] In an optional embodiment, in the fourth state, the second elastic sheet 31 is unfolded, and the temple 10 is opened relative to the frame 20. The temple 10 is opened relative to the frame 20 by unfolding, which is simple to operate.

[0074] Specifically, such as Figure 7 , Figure 9 and Figure 10 As shown, the second elastic sheet 31 includes a second adjusting section 313, a third connecting section 311, and a fourth connecting section 312. Along the extension direction of the second elastic sheet 31, the second adjusting section 313 is connected between the third connecting section 311 and the fourth connecting section 312. The third connecting section 311 is connected to the pile head 21, and the fourth connecting section 312 is connected to the connecting end 11. In the third and fourth states, the third connecting section 311 and the fourth connecting section 312 remain structurally fixed, that is, the third connecting section 311 and the fourth connecting section 312 will not undergo elastic deformation, but this does not mean that they are completely stationary, so as to ensure the stability of the connection between the two ends of the second elastic sheet 31 along its own extension direction.

[0075] Furthermore, the second adjusting section 313 is capable of elastic deformation, and the second elastic sheet 31 switches between the third and fourth states through the elastic deformation of the second adjusting section 313. Specifically, as shown... Figure 8 As shown, in the third state, the second adjustment section 313 is deformed and bent outward along the thickness direction of the temple 10, and the fourth connecting section 312 is drawn inward toward the temple 10; in the fourth state, at least a portion of the structure in the second adjustment section 313 remains straight, and at least a portion of the structure has an arc-shaped cross-section perpendicular to its own extension direction. That is, the straight portion of the structure has an arc-shaped cross-section perpendicular to its own extension direction, and the arc-shaped section is bent inward toward the temple 10, with the ends of the arc extending outward toward the temple 10.

[0076] Thus, in the fourth state, at least a portion of the structure of the second adjustment segment 313 has an arc-shaped cross-section perpendicular to its extension direction. This arc-shaped structure provides effective support, thereby maintaining the straightness of at least a portion of the structure and storing elastic potential energy internally. During the transition from the fourth state to the third state, the second adjustment segment 313 is subjected to an external force. The arc-shaped support structure is broken by the external force, releasing elastic potential energy. The second adjustment segment 313 then bends to cause the temple 10 to retract, thereby transitioning from the fourth state to the third state.

[0077] In a first specific embodiment, in the fourth state, the second adjustment segment 313 is arranged straight along the extension direction of the temple 10, and the cross-section of the second adjustment segment 313 perpendicular to its own extension direction is arc-shaped. This arc-shaped section bends inward toward the temple 10, and the ends of the arc extend outward toward the temple 10. That is, in the fourth state, the second adjustment segment 313 is arranged straight, which makes the second elastic piece 31 also straight, simplifying the manufacturing process. When switching from the fourth state to the third state, the second adjustment segment 313 bends as a whole.

[0078] In a specific embodiment, since the second elastic sheet 31 remains flat in the fourth state, the post head 21 protrudes from the frame 20 along the extension direction of the temple 10, which facilitates the connection with the connecting structure 30.

[0079] In the second specific embodiment, such as Figure 6 and Figure 7 As shown, in the fourth state, along the thickness direction of the temple 10, the second adjustment section 313 deforms and bends outward from the temple 10. The degree of bending of the second adjustment section 313 in the third state is greater than that in the fourth state. Thus, the second elastic piece 31 adapts to the required angle between the frame 20 and the temple 10 by varying degrees of bending of the second adjustment section 313. For example, when the temple 10 is open relative to the frame 20, they are perpendicular or nearly perpendicular. In this case, the degree of bending of the second adjustment section 313 is small, resulting in a smaller degree of bending of the second elastic piece 31. Conversely, when the temple 10 is closed relative to the frame 20, an acute angle is formed between the temple 10 and the frame 20. In this case, the degree of bending of the second adjustment section 313 is large, resulting in a larger degree of bending of the second elastic piece 31. Both of these require the second adjustment section 313 to change its degree of bending to achieve this. Meanwhile, in the fourth state, the second elastic piece 31 is bent outward along the thickness direction of the temple 10 while maintaining a small degree of bending, so as to form a smooth transition between the head 21 and the temple 10, which is beneficial to the aesthetics of the entire eyeglasses frame 100.

[0080] In a specific embodiment, the frame 20 bends towards the temple 10 on both sides along its length to better fit the face model. At this time, the post 21 protrudes outward along the extension direction of the frame 20. The post 21 is set at an angle to the temple 10. The post 21 and the temple 10 are connected by a second elastic piece 31 that bends outward along the thickness direction of the temple 10. This facilitates the bending of the frame 20 and forms a smooth transition, making the frame 20 of the glasses 100 more aesthetically pleasing.

[0081] like Figure 7 and Figure 9As shown, in a specific embodiment, in the fourth state, the second adjustment section 313 includes a second curved section 3131 and a second straight section 3132 connected to the second curved section 3131. The second curved section 3131 is connected to the third connecting section 311 and bends outward along the thickness direction of the temple 10. The second straight section 3132 is connected to the fourth connecting section 312 and extends straight along the extension direction of the temple 10. The cross-section of the second straight section 3132 perpendicular to its own extension direction is arc-shaped.

[0082] Thus, the second adjustment segment 313 can change its overall curvature through the elastic deformation of the second straight segment 3132. In the fourth state, the cross-section of the second straight segment 3132 perpendicular to its extension direction is arc-shaped. The arc-shaped structure can form effective support to keep the second straight segment 3132 straight. At this time, the overall curvature of the second adjustment segment 313 is small. The curvature of the entire second elastic plate 31 is mainly achieved by the bending of the second bending segment 3131, so that the second elastic plate 31 can be bent to a small degree, which facilitates the connection between the second elastic plate 31 and the post head 21. The second straight segment 3132 is tangent to the second bending segment 3131 to make the second adjustment segment 313 have a smooth curvature. When the second straight segment 3132 is subjected to external force, the arc-shaped support structure is broken, and the second straight segment 3132 releases elastic potential energy and bends, causing the entire second adjustment segment 313 to bend further, thereby driving the temple 10 to retract, realizing the switch from the fourth state to the third state.

[0083] In a third specific embodiment, in the fourth state, the second adjustment section 313 includes a second straight section 3132 and at least two second curved sections 3131. One end of the second straight section 3132 along its own extension direction is connected to at least one second curved section 3131, and the at least one second curved section 3131 at this end is connected to the first connecting section 1212. The other end of the second straight section 3132 along its own extension direction is connected to at least one other second curved section 3131, and the at least one other second curved section 3131 at this end is connected to the second connecting section 1213. The second curved section 3131 bends outward from the temple 10 along the thickness direction of the temple 10, and the second straight section 3132 extends straight along the extension direction of the temple 10. The cross-section of the second straight section 3132 perpendicular to its own extension direction is arc-shaped.

[0084] Thus, the second adjustment segment 313 can change its overall curvature through the elastic deformation of the second straight segment 3132. In the fourth state, the cross-section of the second straight segment 3132 perpendicular to its extension direction is arc-shaped, and the arc-shaped structure can form effective support to keep the second straight segment 3132 straight. When switching to the third state, the second straight segment 3132 releases its elastic potential energy and bends under external force, so as to form a smooth curvature together with the second curved segments 3131 at both ends along its extension direction, so as to achieve the closing of the temple 10.

[0085] like Figure 10 As shown, in a specific embodiment, along the extension direction of the second elastic sheet 31, one end of the second adjusting section 313 connected to the third connecting section 311 is gradually tapered toward the third connecting section 311, and one end of the second adjusting section 313 connected to the fourth connecting section 312 is gradually tapered toward the fourth connecting section 312, so as to form a good transition and reduce stress concentration when the second adjusting section 313 undergoes bending changes.

[0086] In a specific embodiment, the third connecting section 311, the second adjusting section 313 and the fourth connecting section 312 are integrally formed and directly processed to reduce the steps of connection and assembly.

[0087] like Figure 11 As shown, in a specific embodiment, the radius of curvature of the second elastic sheet 31 when its cross-section is arc-shaped is in the range of 0.05mm ≤ r2 ≤ 50mm. If the radius of curvature of the arc is too large, the degree of bending is small, the support strength is low, and the second elastic sheet 31 is not easy to maintain the fourth state; if the radius of curvature of the arc is too small, the degree of bending is large, the support strength is high, and a larger force is required to bend the second elastic sheet 31 and drive the temple 10 to close, making it difficult to close the temple 10. Therefore, by limiting the radius of curvature of the arc, the support in the fourth state is ensured, while the person does not have to exert too much force when the temple 10 needs to close. For example, r1 = 0.05mm, 9mm, or 50mm.

[0088] In more embodiments, in the fourth state, the second elastic piece 31 deforms and bends towards the inside of the temple 10 along the thickness direction of the temple 10; that is, the second elastic piece 31 switches between the third and fourth states by changing the direction of bending. When the second elastic piece 31 deforms and bends towards the outside of the temple 10, the end of the second elastic piece 31 connected to the connecting end 11 retracts towards the inside of the temple 10, thereby driving the temple 10 to retract. When the second elastic piece 31 deforms and bends towards the inside of the temple 10, the end of the second elastic piece 31 connected to the connecting end 11 extends towards the outside of the temple 10, driving the temple 10 to open. At this time, the second elastic piece 31 is set at an angle to the temple 10, and the temple 10 extends along the thickness direction of the frame 20 to ensure the normal wearing of the glasses 100.

[0089] In a specific embodiment, the second elastic sheet 31 includes at least two sub-elastic portions. One end of each sub-elastic portion is connected to the post head 21, and the other end is connected to the connecting end 11, along the width direction of the temple 10. A gap exists between two adjacent sub-elastic portions, and each sub-elastic portion bends away from the gap. Thus, along the extension direction of the second elastic sheet 31, the entire second elastic sheet 31 forms a structure that gradually narrows from the apex of the bend towards both ends. Under external force, the at least two sub-elastic portions can change their bending orientation along the thickness direction of the temple 10 through their own elasticity, making operation simple. The at least two sub-elastic portions near the post head 21 and the connecting end 11 can provide effective support to maintain different bending orientations.

[0090] In one specific embodiment, at least two sub-projector parts are separately arranged; in another embodiment, at least two sub-projector parts are integrally formed.

[0091] like Figure 6 and Figure 7 As shown, in a specific embodiment, the size of the second elastic piece 31 along the thickness direction of the temple 10 is 'a', and the size of the temple 10 is 'b', that is, the size of the temple 10 at the connecting end 11 is 'b', where 0.01b ≤ a ≤ 0.5b. If the size of the second elastic piece 31 along the thickness direction of the temple 10 is large, it will be difficult to bend and release the elastic force, making it more difficult to close the temple 10; if the size of the second elastic piece 31 along the thickness direction of the temple 10 is small, there may be structural strength problems. Therefore, by limiting the size of the second elastic piece 31 along the thickness direction of the temple 10, the structural strength of the second elastic piece 31 is ensured, and the second elastic piece 31 is made easier to bend to close the temple. For example, a = 0.01b, 0.25b, or 0.5b.

[0092] like Figure 2As shown, in a specific embodiment, the width of the second elastic piece 31 is h, and the width of the temple 10 at the connecting end 11 is H, where 0.2H ≤ h ≤ 0.9H. If the width of the second elastic piece 31 is too short, the cross-section perpendicular to the extension direction of the second elastic piece 31 will be difficult to form an arc, resulting in insufficient support in the fourth state. If the width of the second elastic piece 31 is too large, it will be more difficult to close the temple 10, and the weight at the connection between the post 21 and the temple 10 will be heavier, affecting the aesthetics. Therefore, by limiting the width of the second elastic piece 31, sufficient support is ensured in the fourth state, while not requiring excessive force when closing the temple 10, thus ensuring the overall aesthetics of the eyeglasses 100 frame. For example, h = 0.2H, 0.5H, or 0.9H.

[0093] like Figure 7 and Figure 9 As shown, in an optional embodiment, the connecting structure 30 further includes a flexible connecting sleeve 32, which is sleeved over the second elastic sheet 31 to wrap around it, thus protecting the second elastic sheet 31. The flexible material can adapt to the elastic deformation of the second elastic sheet 31 and also provide support. Furthermore, the connecting sleeve 32 provides a soft touch, improving the user experience.

[0094] In a specific embodiment, the connecting sleeve 32 may be made of materials such as silicone or rubber.

[0095] like Figure 7 and Figure 9 As shown, in a specific embodiment, multiple grooves 321 are provided on both sides of the connecting sleeve 32 along the thickness direction of the temple 10, and the multiple grooves 321 on each side are spaced apart along the extension direction of the temple 10. In this way, the surface area of ​​the connecting sleeve 32 is increased by the setting of the grooves 321, so that when the connecting sleeve 32 bends and deforms with the second elastic sheet 31, it has sufficient surface area to adapt to bending deformation, which helps to disperse stress and extend the service life of the connecting sleeve 32.

[0096] like Figure 7 and Figure 9 As shown, in a specific embodiment, the post head 21 protrudes towards the temple 10 and is inserted into one end of the connecting sleeve 32. The post head 21 and the connecting sleeve 32 form a mutual limiting function, and at the same time, the post head 21 can be hidden inside the connecting sleeve 32, improving the aesthetics.

[0097] like Figure 7 and Figure 9As shown, in a specific embodiment, the connecting end 11 protrudes outward along the extension direction of the temple 10 and is inserted into the other end of the connecting sleeve 32. The connecting end 11 and the connecting sleeve 32 form a mutual limiting function, and at the same time, the connecting end 11 of the temple 10 can be hidden inside the connecting sleeve 32, improving the aesthetics.

[0098] like Figure 7 and Figure 9 As shown, in a specific embodiment, one end of the second elastic piece 31 along its own extension direction is inserted into the pile head 21, and the other end is inserted into the connecting end 11, so that one end of the second elastic piece 31 is limited to the pile head 21 and the other end is limited to the connecting end 11, which is conducive to fixing during assembly.

[0099] like Figure 7 and Figure 9 As shown, in an optional embodiment, the eyeglasses 100 frame further includes a locking member 40; the post 21 and the connecting structure 30 are locked together by the locking member 40, which passes through the post 21 and the connecting structure 30. Thus, the locking member 40 facilitates the assembly and disassembly of the post 21 and the connecting structure 30, allowing the connecting structure 30 to be replaced periodically.

[0100] In an optional embodiment, the connecting structure 30 and the connecting end 11 are locked together by a locking member 40, which passes through the post head 21 and the connecting structure 30. Thus, the locking member 40 facilitates the assembly and disassembly of the temple 10 and the connecting structure 30, and makes it easier to replace the connecting structure 30.

[0101] In a specific embodiment, the locking element 40 can be set as a pin or the like to achieve locking.

[0102] In another optional embodiment, the pile head 21 and the connecting structure 30 are injection molded together, forming a single unit without additional assembly, which shortens the production cycle and reduces costs. Specifically, the connecting structure 30 and the pile head 21 are processed separately before being injection molded together. Alternatively, the second elastic sheet 31 in the connecting structure 30 can be injection molded to the pile head 21 first, and then the connecting sleeve 32 can be wrapped around the second elastic sheet 31, and the connecting sleeve 32 can be injection molded to the pile head 21 a second time.

[0103] In another optional embodiment, the connecting end 11 and the connecting structure 30 are injection molded together, forming them as a single unit without additional assembly, which helps to shorten the production cycle and reduce costs. Specifically, the connecting structure 30 and the temple 10 are processed separately before being injection molded together. Alternatively, the second elastic piece 31 in the connecting structure 30 can be injection molded to the connecting end 11 of the temple 10 first, and then the connecting sleeve 32 can be wrapped around the second elastic piece 31, and the connecting sleeve 32 can be injection molded to the connecting end 11 a second time.

[0104] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0105] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the scope of protection of this application. Therefore, the patent protection scope of this application should be determined by the appended claims.

Claims

1. A type of temple for eyeglasses, characterized in that, The temple includes an ear hook portion (12), the ear hook portion (12) includes a first elastic piece (121) extending along the temple extension direction and a flexible temple sleeve (122) sleeved on the first elastic piece (121), the first elastic piece (121) being made of elastic material; The first elastic piece (121) has a first state and a second state. In the first state, the first elastic piece (121) bends along the width direction of the temple; the ear hook (12) bends through the first elastic piece (121) to hook the ear; in the second state, the first elastic piece (121) unfolds and the ear hook (12) unhooks the ear; the first elastic piece (121) can undergo elastic deformation under external force to switch between the first state and the second state.

2. The temple of the glasses according to claim 1, characterized in that, The first elastic sheet (121) includes a first adjusting section (1211), a first connecting section (1212), and a second connecting section (1213). Along the extending direction of the first elastic sheet (121), the first adjusting section (1211) is connected between the first connecting section (1212) and the second connecting section (1213). In the first state and the second state, the first connecting segment (1212) and the second connecting segment (1213) remain structurally fixed; the first adjusting segment (1211) is capable of elastic deformation. In the first state, the first adjusting segment (1211) is bent along the width direction of the temple. In the second state, at least a portion of the structure in the first adjusting segment (1211) remains straight, and the cross-section of the at least a portion of the structure perpendicular to its extension direction is arc-shaped. The first elastic sheet (121) switches between the first state and the second state by the elastic deformation of the first adjustment section (1211).

3. The temple according to claim 2, characterized in that, In the second state, the first adjustment section (1211) is straight along the extension direction of the temple, and the cross section of the first adjustment section (1211) perpendicular to its own extension direction is arc-shaped.

4. The temple according to claim 2, characterized in that, In the second state, the first adjustment segment (1211) bends along the width direction of the temple; the degree of bending of the first elastic piece (121) in the first state is greater than the degree of bending of the first adjustment segment (1211) in the second state.

5. The temple of the eyeglasses according to claim 4, characterized in that, In the second state, the first adjustment section (1211) includes a first curved section (12111) and a first straight section (12112) connected to the first curved section (12111). The first curved section (12111) is connected to the first connecting section (1212) and bends along the width direction of the temple. The first straight section (12112) is connected to the second connecting section (1213) and extends straight along the extension direction of the temple. The cross section of the first straight section (12112) perpendicular to its own extension direction is arc-shaped.

6. The temple according to claim 2, characterized in that, In the second state, the first adjustment section (1211) includes a first straight section (12112) and at least two first curved sections (12111). One end of the first straight section (12112) along its own extension direction is connected to at least one first curved section (12111), and at least one first curved section (12111) is connected to the first connecting section (1212). The other end of the first straight section (12112) along its own extension direction is connected to at least another first curved section (12111). At least another first curved section (12111) is connected to the second connecting section (1213). The first curved section (12111) is curved along the width direction of the temple, and the first straight section (12112) extends straight along the extension direction of the temple. The cross-section of the first straight section (12112) perpendicular to its own extension direction is arc-shaped.

7. The temple according to claim 3, 5, or 6, characterized in that, The radius of curvature r1 of the arc is in the range of 0.05mm ≤ r1 ≤ 50mm.

8. The temple of the glasses according to claim 1, characterized in that, Along the thickness direction of the temple, the size of the first elastic piece (121) is m, and the size of the temple is n, 0.2n≤m≤0.9n; and / or, along the width direction of the temple, the size of the first elastic piece (121) is e, and the size of the temple is f, 0.01f≤e≤0.5f.

9. The temple of the glasses according to claim 1, characterized in that, The temple also includes a pressing part (13), which is connected to the end of the ear hook part (12) and protrudes outward relative to the ear hook part (12) along the width direction of the temple.

10. The temple of the eyeglasses according to claim 1, characterized in that, The temple includes a first segment (101) and a second segment (102) connected to the first segment (101). The first segment (101) is used to connect to the frame (20), and the second segment (102) has the ear hook portion (12).

11. The temple of the eyeglasses according to claim 10, characterized in that, The second segment (102) also has a limiting part (14) connected to the ear hook part (12), the limiting part (14) being movably connected to the first segment (101), and the limiting part (14) being able to move and lock relative to the first segment (101) along the extension direction of the temple.

12. The temple of the eyeglasses according to claim 11, characterized in that, The temple also includes a limiting member (50); One of the first segment (101) and the limiting part (14) is sleeved on the other. At least one of the first segment (101) and the limiting part (14) is provided with a plurality of spaced positioning holes (103) along the extension direction of the temple, and the other is provided with a mating hole along the extension direction of the temple. The limiting member (50) passes through the mating hole and the corresponding positioning hole (103) and locks the first segment (101) and the limiting part (14).

13. A pair of eyeglasses, characterized in that, include: The temple of any one of claims 1 to 12 is provided with a connecting end (11) at one end along its own extension direction. The frame (20) is provided with a post (21); A connecting structure (30) is connected between the pile head (21) and the connecting end (11); the connecting structure (30) includes a second elastic sheet (31), which is made of an elastic material; The second elastic piece (31) has a third state and a fourth state; in the third state, along the thickness direction of the temple, the second elastic piece (31) is deformed and bent towards the outside of the temple, and the end of the second elastic piece (31) connected to the connecting end (11) is folded towards the inside of the temple, and the temple is closed relative to the frame (20); in the fourth state, the second elastic piece (31) is unfolded, and the temple is opened relative to the frame (20); the second elastic piece (31) can switch between the third state and the fourth state by external force.

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