Elastic three-fork hinge structure

Abstract

The utility model provides an elastic trident hinge structure which comprises a glasses leg body, a glasses frame body and a rotating shaft assembly, a trident head part is arranged at the front end of the glasses leg body, and the trident head part comprises a first circular fork head, a second fork head and a third circular fork head. The first circular fork head and the third circular fork head are respectively connected with the upper part and the lower part of the front end of the earpiece body, and the second fork head is arranged between the first circular fork head and the third circular fork head and is connected with the middle part of the front end of the earpiece body; the glasses leg has the beneficial effects that the trifurcate head part at the front end of the glasses leg body is movably connected with the glasses frame body through the rotating shaft part, so that each structure of the glasses leg body is convenient to assemble and match, convenient to disassemble and maintain, free of a hinge screw structure in use, prolonged in service life, reduced in follow-up maintenance burden and high in practicability. The trifurcate head is matched with the connector at the front end of the glasses frame body to finish elastic limiting, so that the glasses leg body is prevented from randomly rotating around the rotating shaft and is convenient to use.

Description

Technical Field

[0001] This utility model relates to the field of eyeglasses technology, and more particularly to an elastic three-pronged hinge structure. Background Technology

[0002] Eyeglasses consist of two parts: lenses and frames. They are used to improve vision, protect the eyes, or for decorative purposes. The frames include the eyelids and temples, with the temples folding inwards relative to the frame. However, eyeglasses have the following drawbacks during fitting and use: Traditionally, the frame and temples are connected by screws for rotation. If the screws are too tight, the temples cannot fold relative to the frame; if the screws are too loose, they may come loose after repeated folding and storage, causing the temples to detach and rendering the glasses unusable. Disassembly and assembly are relatively difficult, requiring specialized tools, and the process is cumbersome, resulting in poor assembly quality and easy damage.

[0003] Traditional eyeglass temples typically use screws and solder joints to connect the various components, but this design presents some problems during use.

[0004] Over time, screws can loosen, leading to a decrease in the stability and sturdiness of the temples. Additionally, solder joints may become loose or break, requiring repair or replacement, which increases maintenance costs and inconvenience for users. Utility Model Content

[0005] The purpose of this utility model is to solve the above-mentioned technical problems by providing a novel elastic three-pronged hinge structure. The three-pronged head component at the front end of the eyeglass foot body is movably connected to the eyeglass frame body through the pivot component, which facilitates the assembly and cooperation of various structures of the eyeglass foot body and makes disassembly and maintenance convenient. At the same time, there is no hinge screw structure in its use, which extends the service life and reduces the burden of subsequent maintenance. The three-pronged head and the connector at the front end of the eyeglass frame body cooperate to complete the elastic limit, preventing the eyeglass foot body from rotating around the pivot, which is convenient to use.

[0006] This utility model is achieved through the following technical solution:

[0007] A flexible three-pronged hinge structure includes an eyeglass foot body, an eyeglass frame body, and a screwless hinge assembly. The eyeglass foot body has a three-pronged head component at its front end, which is movably connected to the eyeglass frame body via the hinge assembly. The three-pronged head component includes a first circular fork, a second circular fork, and a third circular fork. The first and third circular forks are respectively connected to the upper and lower parts of the front end of the eyeglass foot body. A second fork is provided between the first and third circular forks, and the second fork is connected to the middle part of the front end of the eyeglass foot body.

[0008] As a further feature, the tail end of the second fork is provided with a groove, and the front end of the second fork is provided with a limiting block.

[0009] As a further feature, the front end of the eyeglass frame body is provided with a connector, the connector has a pivot hole in the middle, the outer side wall of the connector has an elastic limiting groove, the inner side wall of the connector has an outer arc shape, the connector at the front end of the eyeglass frame body is clamped between the first circular fork and the third circular fork, the pivot hole in the middle of the connector matches the first circular fork and the third circular fork, and the pivot assembly passes through the pivot hole in the middle of the connector and the first circular fork and the third circular fork to connect to the front end of the eyeglass frame body.

[0010] As a further embodiment, the pivot assembly includes a pivot and a bushing. One end of the pivot passes through the pivot through hole in the middle of the connector and the first and third circular forks, and is locked onto the eyeglass frame body by the bushing. The inner sidewall of the connector has an outer arc-shaped groove that is embedded in the tail end of the second fork, causing the eyeglass frame body to spring inward. The limiting block at the front end of the second fork is embedded in the elastic limiting groove on the outer sidewall of the connector, and the front end of the eyeglass frame body can spring outward within the elastic limiting groove on the outer sidewall of the connector.

[0011] As a further development, the front end of the eyeglass frame body and the connector are integrally formed.

[0012] Furthermore, the first circular fork, the second circular fork, and the third circular fork are integrally formed with the front end of the eyeglasses base.

[0013] The beneficial effects of this utility model are as follows: the three-pronged head component at the front end of the eyeglass foot body is movably connected to the eyeglass frame body through the rotating shaft component, which facilitates the assembly and cooperation of various structures of the eyeglass foot body, and makes disassembly and maintenance convenient. At the same time, there is no hinge screw structure in its use, which extends the service life and reduces the burden of subsequent maintenance. The three-pronged head and the connector at the front end of the eyeglass frame body cooperate to complete the elastic limit, preventing the eyeglass foot body from rotating around the rotating shaft at will, which is convenient to use. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the elastic three-pronged hinge structure of this utility model;

[0015] Figure 2 This is an exploded view of the elastic three-pronged hinge structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the outward elastic effect of the elastic three-pronged hinge structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the inward elastic effect of the elastic three-pronged hinge structure of this utility model;

[0018] Figure 5 This is a schematic diagram of the eyeglass eyepiece body and the three-pronged head component of this utility model;

[0019] Figure 6 This is a schematic diagram of the eyeglass frame body and connector structure of this utility model;

[0020] Reference numerals: 1. Eyeglass frame body; 11. Three-pronged head component; 110. First circular fork; 111. Second fork; 1110. Groove; 1111. Limiting block; 112. Third circular fork; 2. Eyeglass frame body; 21. Connector; 210. Rotary shaft through hole; 211. Elastic limiting groove; 212. Outer arc; 3. Rotary shaft assembly; 31. Rotary shaft; 32. Bushing. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0023] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments. Example

[0024] For reference Figure 1 , Figure 2 , Figure 5As shown, an elastic three-pronged hinge structure includes an eyeglass foot body 1, an eyeglass frame body 2, and a pivot assembly 3. The eyeglass foot body 1 has a three-pronged head component 11 at its front end. The three-pronged head component 11 at the front end of the eyeglass foot body 1 is movably connected to the eyeglass frame body 2 through the pivot assembly 3. The three-pronged head component 11 includes a first circular fork 110, a second fork 111, and a third circular fork 112. The first circular fork 110 and the third circular fork 112 are respectively connected to the upper and lower parts of the front end of the eyeglass foot body 1. The second fork 111 is provided between the first circular fork 110 and the third circular fork 112. The second fork 111 is connected to the middle part of the front end of the eyeglass foot body 1.

[0025] Preferably, the second fork head 111 has a groove 1110 at its tail end and a limiting block 1111 at its front end. Example

[0026] For reference Figure 6 As shown, the front end of the eyeglass frame body 2 is provided with a connector 21, the middle part of the connector 21 is provided with a pivot hole 210, the outer side wall of the connector 21 is provided with an elastic limiting groove 211, the inner side wall of the front end of the connector 21 is provided with an outer arc 212, the first circular fork 110 and the third circular fork 112 clamp the connector 21 at the front end of the eyeglass frame body 2, the pivot hole 210 in the middle of the connector 21 matches the first circular fork 111 and the third circular fork 112, and the pivot assembly 3 passes through the pivot hole 210 in the middle of the connector 21 and the first circular fork 111 and the third circular fork 112 and is connected to the front end of the eyeglass frame body 1. Example

[0027] For reference Figure 3 , Figure 4 As shown, the pivot assembly 3 includes a pivot 31 and a bushing 32. One end of the pivot 31 passes through the pivot through hole 210 in the middle of the connector 21 and the first circular fork 111 and the third circular fork, and is locked onto the eyeglass frame body 1 by the bushing 32. The inner sidewall of the connector 2 has an outer arc 212 that is embedded in the groove 1110 at the tail end of the second fork 111, so that the eyeglass frame body 1 springs inward. The limiting block 1111 at the front end of the second fork 111 is embedded in the elastic limiting groove 211 on the outer sidewall of the connector 21, and the front end of the eyeglass frame body 2 can spring outward in the elastic limiting groove 211 on the outer sidewall of the connector 21.

[0028] Preferably, the front end of the eyeglass frame body 2 and the connector 21 are integrally formed.

[0029] Preferably, the first circular fork 110, the second fork 111 and the third circular fork 112 are integrally formed with the front end of the eyeglasses foot body 1.

[0030] Based on the disclosure and teachings of the above specification, those skilled in the art can make appropriate changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to this utility model should also fall within the protection scope of the claims of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.

Claims

1. A flexible three-pronged hinge structure, comprising an eyeglass foot body, an eyeglass frame body, and a pivot assembly, characterized in that: The front end of the eyeglasses foot body is provided with a three-pronged head component, which is movably connected to the eyeglasses frame body via a pivot assembly. The three-pronged head component includes a first circular fork, a second circular fork, and a third circular fork. The first circular fork and the third circular fork are respectively connected to the upper and lower parts of the front end of the eyeglasses foot body. A second fork is provided between the first circular fork and the third circular fork, and the second fork is connected to the middle part of the front end of the eyeglasses foot body.

2. The elastic three-pronged hinge structure according to claim 1, characterized in that: The second fork head has a groove at its tail end and a limiting block at its front end.

3. The elastic three-pronged hinge structure according to claim 1, characterized in that: The front end of the eyeglass frame body is provided with a connector, the middle of the connector is provided with a pivot through hole, the outer side wall of the connector is provided with an elastic limiting groove, the inner side wall of the connector is provided with an outer arc shape, the first circular fork and the third circular fork clamp the connector at the front end of the eyeglass frame body, the pivot through hole in the middle of the connector matches the first circular fork and the third circular fork, and the pivot assembly passes through the pivot through hole in the middle of the connector and the first circular fork and the third circular fork to connect with the front end of the eyeglass frame body.

4. The elastic three-pronged hinge structure according to claim 3, characterized in that: The rotating shaft assembly includes a rotating shaft and a bushing. One end of the rotating shaft passes through the rotating shaft through hole in the middle of the connector and the first and third circular forks, and is locked onto the eyeglass frame body by the bushing. The inner sidewall of the connector has an outer arc-shaped groove that is embedded in the tail end of the second fork, so that the eyeglass frame body springs inward. The limiting block at the front end of the second fork is embedded in the elastic limiting groove on the outer sidewall of the connector, and the front end of the eyeglass frame body can spring outward within the elastic limiting groove on the outer sidewall of the connector.

5. The elastic three-pronged hinge structure according to claim 3, characterized in that: The front end of the eyeglass frame body and the connector are integrally formed.

6. The elastic three-pronged hinge structure according to claim 1, characterized in that: The first circular fork, the second circular fork, and the third circular fork are integrally formed with the front end of the eyeglasses base.

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