Spectacle frame hinge

Abstract

The utility model discloses a spectacle frame hinge, which relates to the technical field of spectacle frames and comprises a spectacle end fixing seat, a leg end fixing seat and a front hinge seat, the front hinge seat is fixed at one end of the spectacle end fixing seat, and the other end of the front hinge seat is provided with a front hinge single-tooth film. A side blocking step is arranged on the side, close to the front hinge base, of the front hinge single-tooth piece. Through the arrangement of the elastic ring, the pressure between the front hinge single-tooth piece and the rear hinge bottom plate is increased, so that the resistance between the front hinge seat and the rear hinge seat during rotation is increased, when the whole equipment is unfolded, one end of the spring piece abuts against the second wave teeth, the spring piece is in a compressed state, and the spring piece is prevented from being damaged. Furthermore, the spring pieces can drive the leg end fixing seats to move towards the head of the user, so that the leg end fixing seats drive the glasses legs to move, the glasses frame can be better attached to the two sides of the two ears of the user, and the practicability of the equipment is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of spectacle frames, in particular to a hinge for a spectacle frame. Background Technique

[0002] The spectacle frame is an important part of glasses, mainly playing the role of supporting the spectacle lenses. A good-looking spectacle frame can also play a role in aesthetics. The materials mainly include metals, plastics or resins, natural materials, etc. The frame and the temple of the spectacle frame are rotationally connected through hinges.

[0003] In the Chinese patent with the publication number CN219417910U, an injection-molded two-color sheet spectacle frame is disclosed. In this structure, after the installation through holes are aligned by pressing the extrusion head, a pin is inserted into the installation block and the extrusion head, and the temple can be installed after releasing the extrusion head, which facilitates the quick disassembly and assembly of the temple.

[0004] However, during the use of current spectacle frames on the market, the hinge connection is prone to wear, which greatly improves the movement effect between the temple and the spectacle frame, further making it impossible for the two temples to form an effective clamping force, resulting in the temples being unable to firmly rest on both sides of the user's ears. Especially during the user's movement, large movements will further increase the movement of the spectacle frame, causing the glasses to easily slip off. Summary of the Invention

[0005] The utility model provides a hinge for a spectacle frame to solve the problems raised in the background technique.

[0006] To achieve the above object, the utility model provides the following technical solution: A hinge for a spectacle frame includes a lens-end fixed seat and a temple-end fixed seat, and further includes a front hinge seat. The front hinge seat is fixed to one end of the lens-end fixed seat, and a front hinge single tooth piece is provided at the other end of the front hinge seat. A side blocking step is provided on the side of the front hinge single tooth piece close to the front hinge seat; a rear hinge seat is provided at one end of the temple-end fixed seat, and a limiting side edge adapted to the side blocking step is provided on one side of the rear hinge seat. One end of the rear hinge seat extends outward to form a rear hinge bottom plate. The rear hinge bottom plates are symmetrically arranged at the upper and lower ends of the rear hinge seat, and a rotating shaft is installed between the rear hinge bottom plate and the front hinge single tooth piece; an installation cavity is opened on the side of the rear hinge seat facing the limiting side edge, and a spring piece is installed inside the installation cavity. A second wave tooth is provided on the outer edge of the front hinge single tooth piece close to the temple-end fixed seat, and one end of the spring piece abuts against the second wave tooth to drive the temple-end fixed seat to rotate towards the inner side of the spectacle frame.

[0007] As a preferred technical solution of the present utility model, a loading groove is provided at the position of the rotating shaft of the front hinge single tooth piece. An elastic ring is installed inside the loading groove. The elastic ring is sleeved outside the rotating shaft, and the upper end of the elastic ring abuts against the rear hinge bottom plate, and the lower end of the elastic ring abuts against the front hinge single tooth piece to increase the pressure between the front hinge single tooth piece and the rear hinge bottom plate.

[0008] As a preferred technical solution of the present utility model, the rear hinge seat and the leg end fixing seat are integrally cast, and the included angle between the axial extension lines of the rear hinge seat and the leg end fixing seat is the same as the included angle between the axial extension lines of the front hinge seat and the side stop step, so that when the front hinge seat and the leg end fixing seat are parallel, the limiting side edge abuts against the side stop step.

[0009] As a preferred technical solution of the present utility model, the lens end fixing seat is of an "I" - shaped structure, and the lens end fixing seat and the front hinge seat are integrally cast.

[0010] As a preferred technical solution of the present utility model, the spring piece is of a "J" - shaped or "U" - shaped structure, and cylindrical bars are provided at both ends of the spring piece.

[0011] As a preferred technical solution of the present utility model, a first wave tooth is provided on the outside of the leg end fixing seat, and a hollow groove is provided on the leg end fixing seat.

[0012] Compared with the prior art, the present utility model provides a spectacle frame hinge, which has the following beneficial effects:

[0013] 1. For this spectacle frame hinge, through the setting of the elastic ring, the pressure between the front hinge single tooth piece and the rear hinge bottom plate is increased, thereby increasing the resistance when the front hinge seat and the rear hinge seat rotate. When the whole device is in the unfolded state, one end of the spring piece abuts against the second wave tooth, so that the spring piece is in a compressed state. Further, the spring piece will drive the leg end fixing seat to move towards the user's head direction, so that the leg end fixing seat drives the spectacle leg to move, so that the spectacle frame can better fit on both sides of the user's ears, improving the practicability of the device.

[0014] 2. For this spectacle frame hinge, through the cooperation of the side stop step and the limiting side edge, the movement range of the rear hinge seat is restricted to avoid excessive rotation amplitude of the rear hinge seat, which is beneficial to the wearing of the glasses and further improves the practicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the present utility model when unfolded;

[0016] Figure 2 is a schematic structural diagram of the present utility model when folded;

[0017] Figure 3This is the exploded view of the present utility model;

[0018] Figure 4 This is the schematic installation structure diagram of the rear hinge seat in the present utility model;

[0019] Figure 5 This is the present utility model Figure 4 the enlarged view of part A in;

[0020] Figure 6 This is the schematic installation structure diagram of the spring piece in the present utility model.

[0021] In the figure: 1, lens end fixing seat; 2, front hinge seat; 3, rear hinge seat; 4, leg end fixing seat; 5, first wave tooth; 6, front hinge single tooth piece; 7, rear hinge bottom plate; 8, rotating shaft; 9, side blocking step; 10, second wave tooth; 11, limiting side; 12, loading groove; 13, elastic ring; 14, installation cavity; 15, spring piece. Specific embodiments

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0023] Please refer to Figure 1 - Figure 6 , the present utility model discloses a spectacle frame hinge, including a lens end fixing seat 1 and a leg end fixing seat 4, wherein the lens end fixing seat 1 is embedded in the spectacle frame, the leg end fixing seat 4 is embedded in the spectacle leg, and further includes a front hinge seat 2. The front hinge seat 2 is fixed to one end of the lens end fixing seat 1, and a front hinge single tooth piece 6 is provided at the other end of the front hinge seat 2. A side blocking step 9 is provided on the side of the front hinge single tooth piece 6 close to the front hinge seat 2. In this solution, it should be noted that the thickness of the front hinge single tooth piece 6 is less than the maximum thickness of the front hinge seat 2, and a side blocking step 9 is formed at the connection between the front hinge seat 2 and the front hinge single tooth piece 6.

[0024] The spectacle frame hinge provided in this embodiment further includes a rear hinge seat 3. The rear hinge seat 3 has a "U" - shaped structure. The rear hinge seat 3 is provided at one end of the leg - end fixing seat 4, and a limiting side edge 11 adapted to the side - stop step 9 is provided on one side of the rear hinge seat 3. Through the cooperation of the limiting side edge 11 and the side - stop step 9, the excessive rotation of the rear hinge seat 3 is prevented. In addition, one end of the rear hinge seat 3 extends outward to form a rear hinge bottom plate 7. The rear hinge bottom plates 7 are symmetrically arranged at the upper and lower ends of the rear hinge seat 3. It should be further noted that the rear hinge bottom plates 7 are installed on both sides of the front hinge single - tooth piece 6, and a rotating shaft 8 is installed between the rear hinge bottom plate 7 and the front hinge single - tooth piece 6 to facilitate the rotation between the rear hinge bottom plate 7 and the front hinge single - tooth piece 6.

[0025] To improve the clamping force of the spectacle legs when using the glasses and prevent the spectacle frame from slipping off from both sides of the user's ears, the spectacle frame hinge provided in this embodiment further includes an installation cavity 14. The installation cavity 14 is opened on the side of the rear hinge seat 3 facing the limiting side edge 11, and a spring piece 15 is installed inside the installation cavity 14. A second wave tooth 10 is provided on the outer edge of the front hinge single - tooth piece 6 near the leg - end fixing seat 4. One end of the spring piece 15 abuts against the second wave tooth 10 to drive the leg - end fixing seat 4 to rotate towards the inner side of the spectacle frame.

[0026] In this solution, when the whole device is in the unfolded state (i.e., when the spectacle frame is worn), the front hinge seat 2 and the leg - end fixing seat 4 tend to be parallel axially. At this time, one end of the spring piece 15 abuts against the second wave tooth 10, making the spring piece 15 in a compressed state. Due to the elastic potential energy inside the spring piece 15, it will drive the leg - end fixing seat 4 to move towards the user's head direction, so that the leg - end fixing seat 4 drives the spectacle leg to move, making the spectacle frame better fit on both sides of the user's ears and preventing the spectacle frame from loosening and slipping.

[0027] As Figure 2 - Figure 4 As shown, to further increase the resistance when the front hinge seat 2 and the rear hinge seat 3 rotate and prevent the glasses from loosening when worn, a loading groove 12 is opened at the position of the front hinge single - tooth piece 6 where the rotating shaft 8 is located. An elastic ring 13 is installed inside the loading groove 12. The elastic ring 13 is sleeved outside the rotating shaft 8, and the upper end of the elastic ring 13 abuts against the rear hinge bottom plate 7, and the lower end of the elastic ring 13 abuts against the front hinge single - tooth piece 6 to increase the pressure between the front hinge single - tooth piece 6 and the rear hinge bottom plate 7.

[0028] In this embodiment, through the setting of the elastic ring 13, the pressure between the front hinge single - tooth piece 6 and the rear hinge bottom plate 7 is increased, thereby increasing the resistance when the front hinge seat 2 and the rear hinge seat 3 rotate and preventing the glasses from loosening when worn.

[0029] As Figure 1 - Figure 4As shown, in this solution, the rear hinge seat 3 and the leg end fixing seat 4 are integrally cast to improve the connection strength between the rear hinge seat 3 and the leg end fixing seat 4. Moreover, the angle between the axial extension lines of the rear hinge seat 3 and the leg end fixing seat 4 is the same as the angle between the axial extension lines of the front hinge seat 2 and the side stop step 9. When the front hinge seat 2 and the leg end fixing seat 4 are parallel, the limiting side edge 11 abuts against the side stop step 9 to limit the movement range of the rear hinge seat 3, avoiding excessive rotation amplitude of the rear hinge seat 3, which is beneficial to the wearing of the glasses.

[0030] As Figure 1 and Figure 2 shown, in this embodiment, the lens end fixing seat 1 is of an "I" - shaped structure to increase the contact area between the lens end fixing seat 1 and the spectacle frame, preventing the lens end fixing seat 1 from loosening after installation. Moreover, the lens end fixing seat 1 and the front hinge seat 2 are integrally cast to improve the connection effect between the lens end fixing seat 1 and the front hinge seat 2. In addition, protrusions and threaded mounting holes can be provided on the surface of the lens end fixing seat 1. The protrusions can further increase the contact area between the lens end fixing seat 1 and the spectacle frame, and the setting of the threaded mounting holes enables screw - mounting between the lens end fixing seat 1 and the spectacle frame to further improve the stability of the lens end fixing seat 1 after installation.

[0031] As Figure 3 - Figure 6 shown, the spring piece 15 provided in this embodiment is of a "J" - shaped or "U" - shaped structure, and cylindrical strips are provided at both ends of the spring piece 15. Through the setting of the cylindrical strips, the phenomenon of jamming between the spring piece 15 and the second wave teeth 10 is prevented, improving the stability of the spring piece 15 during movement.

[0032] As Figure 1 shown, to improve the stability of the leg end fixing seat 4 after installation, a first wave tooth 5 is provided on the outer side of the leg end fixing seat 4 to increase the contact area between the leg end fixing seat 4 and the spectacle leg, improving the stability of the leg end fixing seat 4 after installation. In addition, to reduce the pressure on the bridge of the nose of the user when wearing the glasses, a hollow groove can be provided on the leg end fixing seat 4 to reduce the weight of the leg end fixing seat 4, thereby reducing the weight of the entire glasses and improving the wearing experience of the user.

[0033] Working principle and usage process of the present utility model: When in use, through the setting of the elastic ring 13, the pressure between the front hinge single tooth piece 6 and the rear hinge bottom plate 7 is increased, thereby increasing the resistance during the rotation between the front hinge seat 2 and the rear hinge seat 3, so as to prevent the glasses from loosening when worn. During the wearing process of the glasses, the whole device is in an unfolded state. At this time, the front hinge seat 2 and the leg end fixing seat 4 tend to be parallel axially, so that one end of the spring piece 15 abuts against the second wave tooth 10, further making the spring piece 15 in a compressed state. Due to the existence of elastic potential energy inside the spring piece 15, it will drive the leg end fixing seat 4 to move towards the user's head direction, so that the leg end fixing seat 4 drives the temple to move, so that the spectacle frame can better fit on both sides of the user's ears and avoid the spectacle frame from loosening and slipping.

[0034] It should be noted that in this article, terms such as "including", "comprising" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including one..." does not exclude the existence of another identical element in the process, method, article or device including the said element.

[0035] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A spectacle frame hinge, comprising a lens end fixing seat (1) and a leg end fixing seat (4), characterized in that, Further included are: A front hinge seat (2) fixed to one end of the mirror end fixing seat (1), and a front hinge single tooth piece (6) is provided at the other end of the front hinge seat (2). A side blocking step (9) is provided on one side of the front hinge single tooth piece (6) close to the front hinge seat (2); A rear hinge seat (3) is provided at one end of the leg end fixing seat (4). A limiting side edge (11) adapted to the side blocking step (9) is provided on one side of the rear hinge seat (3). One end of the rear hinge seat (3) extends outward to form a rear hinge bottom plate (7). The rear hinge bottom plates (7) are symmetrically arranged at the upper and lower ends of the rear hinge seat (3), and a rotating shaft (8) is installed between the rear hinge bottom plate (7) and the front hinge single tooth piece (6); An installation cavity (14) is opened on one side of the rear hinge seat (3) facing the limiting side edge (11), and a spring piece (15) is installed inside the installation cavity (14). A second wave tooth (10) is provided on one side of the outer edge of the front hinge single tooth piece (6) close to the leg end fixing seat (4). One end of the spring piece (15) abuts against the second wave tooth (10) to drive the leg end fixing seat (4) to rotate towards the inner side of the spectacle frame.

2. The spectacle frame hinge according to claim 1, wherein: A loading groove (12) is opened at the position of the rotating shaft (8) on the front hinge single tooth piece (6). An elastic ring (13) is installed inside the loading groove (12). The elastic ring (13) is sleeved outside the rotating shaft (8), and the upper end of the elastic ring (13) abuts against the rear hinge bottom plate (7), and the lower end of the elastic ring (13) abuts against the front hinge single tooth piece (6) to increase the pressure between the front hinge single tooth piece (6) and the rear hinge bottom plate (7).

3. The spectacle frame hinge according to claim 2, wherein: The rear hinge seat (3) and the leg end fixing seat (4) are integrally cast, and the included angle between the axial extension lines of the rear hinge seat (3) and the leg end fixing seat (4) is the same as the included angle between the axial extension lines of the front hinge seat (2) and the side blocking step (9), so that when the front hinge seat (2) and the leg end fixing seat (4) are parallel, the limiting side edge (11) abuts against the side blocking step (9).

4. The spectacle frame hinge according to claim 3, characterized in that: The mirror end fixing seat (1) is of an "I" - shaped structure, and the mirror end fixing seat (1) and the front hinge seat (2) are integrally cast.

5. A spectacle frame hinge according to any one of claims 1-4, characterized in that: The spring piece (15) is of a "J" - shaped or "U" - shaped structure, and cylindrical bars are provided at both ends of the spring piece (15).

6. The spectacle frame hinge according to claim 5, characterized in that: A first wave tooth (5) is provided on the outside of the leg end fixing seat (4), and a hollowed - out groove is provided on the leg end fixing seat (4).

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