Glasses leg assembly and turnover glasses

By designing a temple assembly containing articulated blocks and temples, the problem that existing sunglasses temples cannot be replaced freely is solved, and the temples are easily disassembled and assembled and the lenses are flexible, meeting the users' needs for fashion and clear vision.

CN222762345UActive Publication Date: 2025-04-15XIAMEN PROSPER OPTICAL TECH CO LTD
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Patent Information

Application Number
CN202421548411.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-02
Publication Date
2025-04-15
Estimated Expiration
2034-07-02

AI Technical Summary

Technical Problem

The existing flip-flopable sunglasses require special tools to disassemble and assemble the temples and lens holders. They cannot freely replace different styles of temples, which cannot meet users' pursuit of fashion.

Method used

A temple assembly is designed, including a hinged block and a temple. The hinged block is hinged with the lens frame. The temple and the hinged block are connected by a rotating shaft. A limiting structure is provided to fix the relative position of the hinged block and the temple, and the temple is disassembled and assembled through an adapter hole and a give way.

Benefits of technology

The free replacement of temples is realized, and the disassembly and assembly process is simplified, making it easier for users to replace different styles of temples according to their personal preferences. At the same time, the lens holder can be flipped relative to the temples, adjusting the flip angle of the lenses to meet the user's needs for clear and fashionable vision.

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Abstract

The utility model relates to the field of glasses, and discloses a glasses leg assembly and a pair of turnable glasses, the glasses leg assembly comprises a hinge block and a glasses leg, the hinge block is used for being hinged with a lens frame, the hinge block or the glasses leg is provided with a rotating shaft, and the glasses leg or the hinge block is provided with a switching hole used for being rotatably connected with the rotating shaft, so that the lens frame can rotate around the rotating shaft relative to the glasses leg. Limiting structures are arranged between the hinge blocks and the glasses legs and are used for fixing the hinge blocks and the glasses legs after the hinge blocks and the glasses legs rotate relatively; wherein a receding opening is formed in the hole wall of the transfer hole, the rotating shaft is provided with a short end, and the size of the short end is smaller than the caliber of the receding opening, so that when the short end is opposite to the receding opening, the rotating shaft can be moved into or out of the transfer hole from the receding opening, and the glasses legs are connected with or separated from the hinge blocks. According to the glasses leg assembly and the pair of turnover glasses provided by the utility model, the problem of how to have two functions of turnover of the lenses and free replacement of the glasses legs can be solved.
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Description

Technical Field

[0001] The utility model relates to the field of glasses, in particular to a temple assembly and flippable glasses. Background Art

[0002] At present, glasses have the function of protecting eyes, such as sunglasses, which can filter and adjust light to avoid strong light irritation to eyes. They are usually used outdoors to ensure that users have clear vision outdoors. Traditional sunglasses are usually one-piece structures. When users go from outdoors to indoors, or drive into a tunnel, the surrounding light environment changes from bright to dark. Therefore, in order to ensure clear vision, users need to take off the sunglasses completely. However, when going from indoors to outdoors, or driving out of a tunnel, the surrounding light environment changes from dark to bright, and users need to put the sunglasses back on, which is very inconvenient.

[0003] To this end, the prior art provides a flippable pair of sunglasses, including a first lens frame, a second lens frame and temples, the two ends of the first lens frame are respectively hinged to the two temples, the second lens frame includes a rotating shaft and two wires for fixing the lenses, the two ends of the rotating shaft are respectively connected to the two wires, the second lens frame is rotatably connected to the middle of the first lens frame through the rotating shaft, a ratchet is provided on the rotating shaft, an elastic pawl is provided in the middle of the first lens frame, and the elastic pawl is engaged in any tooth groove on the surface of the ratchet to relatively fix the first lens frame and the second lens frame, thereby fixing the flip angle of the lens. In this way, when the light environment around the user changes from bright to dark or from dark to bright, the user does not need to take off the glasses, but only needs to manually flip the second lens frame to adjust the flip angle of the lens, and adjust and compensate the light in time, which is convenient to use.

[0004] However, in addition to being used to block sunlight, sunglasses also play a decorative role. The temples of the flippable sunglasses are hinged to the first lens frame by screws, and special tools are required for disassembly and assembly, resulting in the inability to freely replace temples of different styles of the flippable sunglasses, and the users' pursuit of fashion cannot be met. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] The utility model provides a temple assembly and flippable glasses, which can at least solve the technical problem of how to achieve both the functions of flippable lenses and freely replaceable temples.

[0007] (II) Technical solution

[0008] In order to solve the above technical problems, the utility model provides the following technical solutions: a temple assembly, comprising a hinge block and a temple;

[0009] The hinge block is used to hinge with the lens frame, the hinge block or the temple is provided with a rotating shaft, the temple or the hinge block is provided with a transfer hole for rotationally connecting with the rotating shaft, so that the lens frame can rotate around the rotating shaft relative to the temple, and a limiting structure is provided between the hinge block and the temple, and the limiting structure is used to fix the hinge block and the temple after the hinge block and the temple rotate relative to each other;

[0010] Among them, a clearance opening is provided on the hole wall of the adapter hole, and the rotating shaft is provided with a short end, the size of the short end is smaller than the diameter of the clearance opening, so that when the short end and the clearance opening are opposite to each other, the rotating shaft can move into or out of the adapter hole through the clearance opening to connect or separate the temple and the hinge block.

[0011] It is further provided that the aforementioned limiting structure includes a spring piece and at least two limiting recesses, the limiting recesses are provided on the hinge block or the temple, and are distributed in an annular manner around the rotating shaft, the spring piece is provided on the temple or the hinge block, and is provided with a limiting convex portion, the limiting convex portion is used for aligning and clamping in the limiting recesses, so as to relatively fix the hinge block and the temple;

[0012] When the temple is rotated relative to the hinge block under force, the spring sheet elastically deforms in a direction away from the limiting recess, so that the limiting protrusion is separated from one limiting recess and moves into the next limiting recess to adjust the rotation angle of the lens frame relative to the temple.

[0013] It is further provided that the aforementioned limiting recess is provided on the hinge block or the temple, and has an opening extending to the outside of the hinge block or the temple;

[0014] When the rotating shaft moves from the clearance opening into or out of the transfer hole, the limiting protrusion moves into or out of any limiting recess, and the opening of the limiting recess is located on the moving track of the limiting protrusion.

[0015] It is further provided that the aforementioned limiting protrusions and limiting recesses are the same in number and correspond one to one, the limiting recesses are provided on the hinge block or the temple, and have an opening extending to the outside of the hinge block or the temple, the limiting recesses are symmetrically arranged in pairs, and the openings of the two symmetrical limiting recesses are arranged in opposite directions;

[0016] When the rotating shaft moves into or out of the adapter hole from the clearance opening, the limiting protrusion moves into or out of the corresponding limiting recess. Among the openings of the two symmetrical limiting recesses, one opening is located on the moving trajectory of the corresponding limiting protrusion, and the other opening is located outside the moving trajectory of the corresponding limiting protrusion.

[0017] It is further provided that a first arc-shaped guide surface is provided in the aforementioned limiting concave portion, and the first guide surface is used for contacting with the limiting convex portion and guiding the spring piece to elastically deform in a direction away from the limiting concave portion.

[0018] It is further arranged that the aforementioned limiting protrusion has an end facing the limiting concave portion with a second arc-shaped guide surface, the spring piece is arranged on the temple or the hinge block, and contacts the hinge block or the temple through the second guide surface.

[0019] It is further arranged that the aforementioned temple or hinge block is provided with a rotating block, and the transfer hole is provided on the rotating block;

[0020] Two limiting surfaces are arranged on the hinge block or the temple, and the two limiting surfaces are respectively connected to the two ends of the rotating shaft to limit the rotating block between the two limiting surfaces.

[0021] The utility model also provides a pair of flippable glasses, comprising a lens frame for loading lenses and the above-mentioned temple assembly.

[0022] (III) Beneficial effects

[0023] Compared with the prior art, the temple assembly and flip-able glasses provided by the utility model have the following beneficial effects:

[0024] The temple assembly provided by the utility model can be disassembled. When disassembling and assembling, it is only necessary to adjust the short end of the rotating shaft relative to the position of the clearance port, so that the rotating shaft can be moved out of the clearance port or into the adapter hole to complete the disassembly and assembly of the hinge block and the temple. The disassembly and assembly structure is simple and easy to operate, and it is convenient to freely replace temples of different styles, which can meet the user's pursuit of fashion; and when the flip glasses with the temple assembly are used, the user applies force to rotate the hinge block and the temple, so that the lens frame and the lens thereon can be rotated relative to the temple, so that the flip angle of the lens relative to the temple can be adjusted to ensure clear vision. During the flipping process, the flip angle of the lens relative to the temple can be fixed by the limit structure. It can be seen that the flip glasses can have both the functions of flipping the lens and freely replacing the temple through the temple assembly, which can meet the diverse usage needs of users. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A three-dimensional diagram of the temple assembly and the flippable glasses in the embodiment;

[0026] Figure 2 A partial structural cross-sectional view of the temple assembly and the flippable glasses in the embodiment;

[0027] Figure 3 It is a partial structural cross-sectional view of the embodiment in which the hinge block and the temple are relatively rotated to the first position;

[0028] Figure 4 It is a partial structural cross-sectional view of the embodiment in which the hinge block and the temple are relatively rotated to the second position.

[0029] Figure Number:

[0030] 1. Lens frame;

[0031] 2. temple assembly; 21. hinge block; 22. temple;

[0032] 3. lens; 4. shaft; 41. short end;

[0033] 5. Position limiting structure; 51. Spring piece; 511. Position limiting convex part; 512. Second guide surface; 52. Position limiting concave part; 521. Opening; 522. First guide surface;

[0034] 6. Adapter hole; 61. Make way opening; 7. Limiting surface; 8. Rotating block. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0036] The utility model provides a temple assembly 2, which is used to solve the problem of how to achieve both the functions of flipping the lens 3 and freely replacing the temple 22.

[0037] See also Figure 1 and Figure 2 As shown, Figure 1 It is a three-dimensional diagram of the temple assembly and the flip-up glasses in the embodiment. Figure 2 It is a partial structural cross-sectional view of the temple assembly and the flip glasses in the embodiment. The temple assembly 2 includes a hinge block 21 and a temple 22.

[0038] The hinge block 21 is used for being hinged to the lens frame 1 so as to unfold or fold the temple assembly 2 relative to the lens frame 1 .

[0039] The hinge block 21 or the temple 22 is connected with the rotating shaft 4 by integral connection or bonding, and the temple 22 or the hinge block 21 has a transfer hole 6 for rotationally connecting with the rotating shaft 4. In this way, the hinge block 21 is also rotationally connected with the temple 22 through the rotating shaft 4, so that the lens frame 1 can rotate relative to the temple 22 around the rotating shaft 4, thereby turning over the lens 3 and adjusting the turning angle of the lens 3.

[0040] Among them, a clearance opening 61 is opened on the hole wall of the above-mentioned adapter hole 6, and the above-mentioned shaft 4 has a short end 41, and the size of the short end 41 is smaller than the diameter of the clearance opening 61, so that when the short end 41 and the clearance opening 61 are opposite to each other, the shaft 4 can be moved into or out of the adapter hole 6 through the clearance opening 61, so that the temple 22 is connected or separated from the hinge block 21.

[0041] A limiting structure 5 is provided between the hinge block 21 and the temple 22 . The limiting structure 5 is used to fix the hinge block 21 and the temple 22 after the hinge block 21 and the temple 22 rotate relative to each other, thereby fixing the flip angle of the lens 3 .

[0042] The temple assembly 2 provided by the above technical solution can be disassembled. When disassembling and assembling, it is only necessary to adjust the short end 41 of the rotating shaft 4 relative to the position of the clearance port 61, so that the rotating shaft 4 can be moved out of or into the adapter hole 6 from the clearance port 61 to complete the disassembly and assembly of the hinge block 21 and the temple 22. The disassembly and assembly structure is simple and easy to operate, and it is convenient to freely replace the temples 22 of different styles to meet the user's pursuit of fashion. When the flip glasses with the temple assembly 2 are used, the user applies force to rotate the hinge block 21 and the temple 22, so that the lens frame 1 and the lens 3 thereon can be rotated relative to the temple 22, so that the flip angle of the lens 3 relative to the temple 22 can be adjusted to ensure clear vision. During the flipping process, the flip angle of the lens 3 relative to the temple 22 can be fixed by the limiting structure 5. It can be seen that the flip glasses can have both the functions of flipping the lens 3 and freely replacing the temple 22 through the temple assembly 2, which can meet the diverse usage needs of users.

[0043] The hinge block 21 and the temple 22 can be made of plastic or memory metal or other materials in one piece, which is convenient for production.

[0044] The above-mentioned limiting structure 5 can use a damping or other tight connection structure or an elastic clamping structure, etc., as long as it can maintain the flip angle of the lens 3 and can be easily rotated by one hand.

[0045] See also Figure 2 , Figure 3 and Figure 4 As shown, Figure 3 It is a partial structural cross-sectional view of the embodiment in which the hinge block 21 and the temple 22 are relatively rotated to the first position. Figure 44 is a partial structural cross-sectional view of the hinge block 21 and the temple 22 in the embodiment when they are relatively rotated to the second position. In one embodiment of the limiting structure 5, the limiting structure 5 includes a spring piece 51 and at least two limiting recesses 52. The limiting recesses 52 are located on the hinge block 21 or the temple 22 and are distributed in a ring around the rotating shaft 4. The spring piece 51 is connected to the temple 22 or the hinge block 21 by integral connection or bonding, and the spring piece 51 has a limiting protrusion 511, which is used to be aligned and clamped in the limiting recess 52 to relatively fix the hinge block 21 and the temple 22. When the temple 22 rotates relative to the hinge block 21, the spring piece 51 elastically deforms in a direction away from the limiting recess 52, so that the limiting protrusion 511 is separated from one limiting recess 52 and moves to the next limiting recess 52 to adjust the rotation angle of the lens frame 1 relative to the temple 22. In this way, during the relative rotation of the temple 22 and the hinge block 21 through the rotating shaft 4, the spring sheet 51 can be elastically deformed and driven to rotate accordingly. When the limiting protrusion 511 of the spring sheet 51 is aligned with any limiting recess 52, the spring sheet 51 can be restored and the limiting protrusion 511 enters the limiting recess 52, thereby clamping the hinge block 21 and the temple 22, fixing the relative rotation angle of the temple 22 and the hinge block 21, that is, maintaining the flip angle of the lens 3. It can be seen that the temple assembly 2 can adjust the flip angle of the lens 3 in steps, and the flipping of the lens 3 is simple and easy to operate, so that the user can quickly flip the lens 3 with one hand when the light environment switches between bright and dark, thereby ensuring clear vision.

[0046] The above-mentioned limiting recess 52 can be located on the hinge block 21 or the temple 22. If the limiting recess 52 is located on the hinge block 21, the above-mentioned spring piece 51 is connected to the temple 22. If the limiting recess 52 is located on the temple 22, the above-mentioned spring piece 51 is connected to the hinge block 21. The above-mentioned spring piece 51 can be provided with one or more. The more the number is, the more solid the limiting structure 5 is, but the more laborious it is to flip. The specific number of the spring pieces 51 can be designed according to actual needs, and the above-mentioned spring pieces 51 can be made of plastic or memory metal and other materials together with the temple 22 or the hinge block 21, so that the spring pieces 51 can be bent and deformed by the elasticity of the material itself, and it is also convenient for production and manufacturing.

[0047] See also Figure 2 As shown, based on the above embodiment, the clearance opening 61 is a gradually expanding opening, and the diameter of the clearance opening 61 gradually increases from the axis of the adapter hole 6 to the outside, which can guide the shaft 4 to pass through the clearance opening 61 and move into the adapter hole 6 to improve the installation efficiency of the temple 22.

[0048] See also Figure 3 and Figure 4As shown, in one embodiment of the limiting recess 52, the limiting recess 52 is located on the hinge block 21 or the temple 22, and the limiting recess 52 has an opening 521 extending to the outside of the hinge block 21 or the temple 22. When the rotating shaft 4 moves into or out of the transfer hole 6 from the clearance opening 61, the limiting protrusion 511 moves into or out of any limiting recess 52, and the opening 521 of the limiting recess 52 is located on the moving track of the limiting protrusion 511. In this way, when the hinge block 21 and the temple 22 are disassembled, the rotating shaft 4 moves out of or into the clearance opening 61, and the limiting protrusion 511 moves out of or into a limiting recess 52. During the movement of the limiting protrusion 511, the spring sheet 51 does not need to be deformed, and can be easily moved out of or into the limiting recess 52 through the corresponding opening 521, further improving the convenience of disassembly and assembly of the temple 22.

[0049] The opening 521 and the clearance opening 61 can be located together on the hinge block 21 or the temple 22, or the opening 521 can be located on the hinge block 21 or the temple 22, and the clearance opening 61 can be located on the temple 22 or the hinge block 21. In the former, the opening 521 and the clearance opening 61 have the same orientation, while in the latter, the opening 521 and the clearance opening 61 have opposite orientations, so that the limiting protrusion 511 can be moved out of or into the limiting recess 52 from the opening 521 while the rotating shaft 4 moves out of or into the clearance opening 61.

[0050] See also Figure 3 and Figure 4As shown, in one embodiment of the limiting recess 52, the limiting recess 52 is located on the hinge block 21 or the temple 22, and the limiting recesses 52 are symmetrically distributed in pairs. The limiting recess 52 has an opening 521 extending to the outside of the hinge block 21 or the temple 22, and the openings 521 of the two symmetrical limiting recesses 52 face opposite to each other. The number of the limiting protrusions 511 and the limiting recesses 52 is the same, and they correspond one to one. Among them, when the rotating shaft 4 moves into or out of the adapter hole 6 from the yielding opening 61, the limiting protrusion 511 moves into or out of the corresponding limiting recess 52, and among the openings 521 of the two symmetrical limiting recesses 52, one opening 521 is located on the moving track of the corresponding limiting protrusion 511, and the other opening 521 is located outside the moving track of the corresponding limiting protrusion 511. In this way, when disassembling and assembling the hinge block 21 and the temple 22, the rotating shaft 4 moves out of or into the adapter hole 6, and at the same time, each limiting protrusion 511 moves out of or into the corresponding limiting recess 52. During the movement of the limiting protrusion 511, the opening 521 located on the moving trajectory of the corresponding limiting protrusion 511 can make the limiting protrusion 511 easily move out of or into the limiting recess 52 directly through the opening 521, without the deformation of the spring sheet 51, thereby further improving the convenience of disassembly and assembly of the temple 22, and the opening 521 located outside the moving trajectory of the corresponding limiting protrusion 511 can limit the limiting protrusion 511 from automatically moving out of the limiting recess 52 along the opening 521. It can be seen that the temple assembly 2 can facilitate the disassembly and assembly of the hinge block 21 and the temple 22 through the symmetrical openings 521, and can effectively prevent the limiting protrusion 511 from automatically moving out of the limiting recess 52 along the opening 521 during the relative rotation of the hinge block 21 and the temple 22, resulting in automatic disassembly of the hinge block 21 and the temple 22.

[0051] See also Figure 3 and Figure 4 As shown, in one embodiment of the limiting structure 5, the limiting recess 52 has an arc-shaped first guide surface 522, and the first guide surface 522 is used to contact the limiting protrusion 511 and guide the spring piece 51 to elastically deform in a direction away from the limiting recess 52. In this way, when the spring piece 51 rotates around the rotating shaft 4, the limiting protrusion 511 contacts the first guide surface 522 of any limiting recess 52, and the first guide surface 522 guides the spring piece 51 to elastically deform in a direction away from the limiting recess 52, so that the limiting protrusion 511 moves out of the limiting recess 52, thereby facilitating the user to easily and quickly flip the lens 3, and the lens 3 can be easily flipped even with one hand, without affecting the user's driving and other operations at the same time.

[0052] See also Figure 3 and Figure 4As shown, in one embodiment of the limiting structure 5, the limiting protrusion 511 has an arc-shaped second guide surface 512 at one end facing the limiting concave portion 52, and the spring piece 51 is connected to the temple 22 or the hinge block 21 by integral connection or bonding, and contacts the hinge block 21 or the temple 22 through the second guide surface 512. In this way, when the spring piece 51 rotates around the rotating shaft 4, the limiting protrusion 511 contacts the hinge block 21 or the temple 22 through the second guide surface 512, and the second guide surface 512 can reduce the contact area between the limiting protrusion 511 and the hinge block 21 or the temple 22, so as to reduce the rotation resistance of the spring piece 51, and further reduce the rotation resistance of the hinge block 21 relative to the temple 22, further facilitating the user to easily and quickly flip the lens 3.

[0053] See also Figure 2 , Figure 3 and Figure 4 As shown, in an embodiment in which the hinge block 21 and the temple 22 are rotatably connected via the rotating shaft 4, the temple 22 or the hinge block 21 is connected with a rotating block 8 by means of integral connection or bonding, and the transfer hole 6 is opened on the rotating block 8. The hinge block 21 or the temple 22 has two limiting surfaces 7, and the two limiting surfaces 7 are respectively connected to the two ends of the rotating shaft 4 to limit the rotating block 8 between the two limiting surfaces 7. In this way, when the hinge block 21 and the temple 22 are rotatably connected via the rotating shaft 4, the limiting surfaces 7 can limit the axial position of the rotating block 8 on the rotating shaft 4, effectively preventing the rotating block 8 from escaping from the rotating shaft 4 from the two ends of the rotating shaft 4 during the flipping process, thereby affecting the use of the temple assembly 2.

[0054] See also Figure 1 As shown, the utility model also provides a reversible pair of glasses, comprising a lens frame 1 and the above-mentioned temple assembly 2, wherein the lens frame 1 is used to load the lens 3. The specific implementation process of the temple assembly 2 can refer to the above description, and this embodiment will not be repeated here. Since the temple assembly 2 has the above-mentioned technical effects, the reversible glasses having the temple assembly 2 also have the corresponding technical effects.

[0055] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A temple assembly, characterized in that: Includes hinged blocks and temples; The hinge block is used to hinge with the lens frame, the hinge block or the temple is provided with a rotating shaft, the temple or the hinge block is provided with a transfer hole for rotationally connecting with the rotating shaft, so that the lens frame can rotate around the rotating shaft relative to the temple, and a limiting structure is provided between the hinge block and the temple, and the limiting structure is used to fix the hinge block and the temple after the hinge block and the temple rotate relative to each other; Among them, a clearance opening is provided on the hole wall of the adapter hole, and the rotating shaft is provided with a short end, and the size of the short end is smaller than the diameter of the clearance opening, so that when the short end and the clearance opening are opposite to each other, the rotating shaft can be moved into or out of the adapter hole through the clearance opening, so that the temple is connected or separated from the hinge block.

2. A temple assembly according to claim 1, characterized in that: The limiting structure includes a spring sheet and at least two limiting recesses, wherein the limiting recesses are arranged on the hinge block or the temple and are distributed in an annular manner around the rotating shaft, and the spring sheet is arranged on the temple or the hinge block and is provided with a limiting convex portion, wherein the limiting convex portion is used for being aligned and clamped in the limiting recesses to relatively fix the hinge block and the temple; When the temple is rotated relative to the hinge block under force, the spring sheet elastically deforms in a direction away from the limiting recess, so that the limiting protrusion disengages from one limiting recess and moves into the next limiting recess to adjust the rotation angle of the lens frame relative to the temple.

3. A temple assembly according to claim 2, characterized in that: The limiting recess is arranged on the hinge block or the temple, and has an opening extending to the outside of the hinge block or the temple; When the rotating shaft moves from the clearance opening into or out of the adapter hole, the limiting protrusion moves into or out of any of the limiting recesses, and the opening of the limiting recess is located on the moving track of the limiting protrusion.

4. A temple assembly according to claim 2, characterized in that: The number of the limiting protrusions and the limiting recesses is the same and they correspond one to one. The limiting recesses are arranged on the hinge block or the temple and have an opening extending to the outside of the hinge block or the temple. The limiting recesses are arranged symmetrically in pairs, and the openings of the two symmetrical limiting recesses are arranged in opposite directions. When the rotating shaft moves into or out of the adapter hole from the clearance opening, the limiting protrusion moves into or out of the corresponding limiting recess, and among the openings of the two symmetrical limiting recesses, one of the openings is located on the moving trajectory of the corresponding limiting protrusion, and the other opening is located outside the moving trajectory of the corresponding limiting protrusion.

5. A temple assembly according to claim 2, characterized in that: A first arc-shaped guide surface is provided in the limiting concave portion, and the first guide surface is used to contact the limiting convex portion and guide the elastic sheet to elastically deform in a direction away from the limiting concave portion.

6. A temple assembly according to claim 2 or 5, characterized in that: An arc-shaped second guide surface is provided at one end of the limiting protrusion facing the limiting concave portion, and the elastic sheet is provided on the temple or the hinge block, and contacts the hinge block or the temple through the second guide surface.

7. The temple assembly according to claim 1, characterized in that: A rotating block is provided on the temple or the hinge block, and the transfer hole is provided on the rotating block; The hinge block or the temple is provided with two limiting surfaces, and the two limiting surfaces are respectively connected to the two ends of the rotating shaft to limit the rotating block between the two limiting surfaces.

8. A pair of flip-up glasses, characterized in that: The invention comprises a lens frame for loading lenses, and a temple assembly according to any one of claims 1-7.