Elastic hinge for glasses and glasses
By designing an elastic piece surrounding hinge structure with an open ring structure, the problem of deformation and large volume of the glasses hinge is solved, the space utilization and force transmission of the hinge are realized, and the resistance to external force and wear comfort are improved.
Patent Information
- Application Number
- CN202420970106.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-07
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-05-07
AI Technical Summary
The existing glasses hinge structure is prone to deform during long-term use, resulting in unbalanced glasses frames and affecting vision. Moreover, due to the large gap between the amorphous metal shrapnel and the hinge, the hinge is large in size and affecting wear comfort.
Design an elastic hinge for glasses, adopts an elastic member surrounding the hinge structure with an open ring structure, and designs abutment and sliding grooves of the hinge parts of the first connecting part and the second connecting part to fully utilize the space of the hinge structure and Force conduction reduces the external force of the elastic parts and improves the resistance to external force breakage.
It effectively reduces the volume of the hinge, improves the external force resistance of the hinge, extends the service life, and improves wear comfort.
Smart Images
Figure CN222213099U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of glasses, in particular to an elastic hinge for glasses and the glasses. Background Art
[0002] The hinge of glasses is used to connect the legs of glasses and the frames of glasses. The legs of glasses in the frames of glasses that people usually use are all strip-shaped. The legs of glasses and the frames of glasses are connected by a hinge structure. When the glasses are used, the legs of glasses are fully opened, placed on the ears, and clamped on both sides of the face to fix the rims of the glasses. Long-term opening and closing operations will cause deformation of the hinge position or the legs of glasses, which will cause imbalance of the frames of glasses and affect the user's vision.
[0003] The existing improvement on the hinge structure, as shown in Chinese patent 202410062319.0, is that a first hinge portion is provided at one end of the amorphous metal spring sheet, the amorphous metal spring sheet is arranged around the hinge structure, and a gap is left between the amorphous metal spring sheet and the first hinge portion. When the temple of the glasses is in a folded state, the amorphous metal spring sheet does not contact the first hinge portion. When the temple of the glasses is unfolded to approximately 90° and further expanded outward by external force, the amorphous metal spring sheet is elastically deformed and bent by force, and a gap is generated between the limiting component and the first connecting portion. Relative displacement occurs, and the gap gradually decreases. When the set angle is reached, the limit component and the end face of the first connecting part abut against each other to limit the unfolding angle of the glasses leg, reducing the stress on the amorphous metal spring under large-angle bending and improving the bending resistance of the hinge structure, thereby extending the service life of the amorphous metal spring and the hinge structure; since a large gap is left between the amorphous metal spring and the first hinge part, the elastic hinge is large in size, affecting the wearing comfort experience; therefore, how to overcome the above-mentioned technical problems and defects has become a key issue that needs to be solved. Utility Model Content
[0004] Aiming at the problem that the existing elastic hinge is large in size, the utility model provides an elastic hinge for spectacles and spectacles.
[0005] The technical solution adopted by the utility model to solve the above technical problems is as follows:
[0006] On the one hand, the utility model provides an elastic hinge for glasses, comprising an elastic member, a first connecting part and a second connecting part, wherein a first hinge part is arranged at one end of the first connecting part, and a second hinge part is arranged at one end of the second connecting part; the first hinge part and the second hinge part are hinged to form a hinge structure; the elastic member is a ring-like structure with an opening, the elastic member is arranged around the hinge structure, and the elastic member has a first end and a second end which can approach or move away from each other at the opening position; when the temple of the glasses is unfolded to approximately 90°, the first connecting part abuts against the first end, and the second connecting part abuts against the second end; when the temple of the glasses further expands outward from approximately 90°, the distance between the first end and the second end gradually decreases, and the elastic member undergoes elastic deformation to provide elasticity for limiting the further expansion of the temple of the glasses.
[0007] Optionally, the elastic member is selected from a metal spring or a non-metal spring, and the metal spring is selected from one of a zirconium-based amorphous alloy spring, a copper-based amorphous alloy spring, an iron-based amorphous alloy spring, a magnesium-based amorphous alloy spring and a titanium-based amorphous alloy spring. The number of the second hinged parts is two, and the number of the first hinged parts is one, and the two second hinged parts are arranged on both sides of the first hinged part; the first hinged part and the second hinged part are both annular, and the first hinged part and the second hinged part are coaxially arranged, and a hinge screw is arranged to pass through the first hinged part and the second hinged parts located on both sides of the first hinged part to form a hinge structure, and the hinge screw is fixed on the two second hinged parts, and the first hinged part and the hinge screw move relative to each other.
[0008] Optionally, a limiting groove is provided on the first connecting portion, and the first end of the elastic member abuts against the limiting groove; and a movable groove is provided on the second connecting portion, and the second end of the elastic member can be slidably disposed in the movable groove.
[0009] Optionally, the movable groove is formed on the second connecting part, the opening of the movable groove faces the first connecting part, the elastic member is sleeved on the outer periphery of the first hinged part and is located between the overlapping projection areas of the two second hinged parts, and the second end of the elastic member moves in the movable groove.
[0010] Optionally, a limiting groove is formed between the first connecting portion and the first hinge portion, and the first end portion of the elastic member is embedded in the limiting groove and abuts against the inside of the limiting groove.
[0011] Optionally, the first connecting part is provided with an annular groove around the outer circumference of the first hinged part, the annular groove is formed with an arc segment with the rotating axis of the hinge structure as the center, a limiting groove is formed on the first arc segment, the annular groove is formed with an arc hole at the position corresponding to the movable groove, the first end portion of the elastic member abuts against one end of the limiting groove, and one side of the second end portion of the elastic member extends out of the arc hole and slides in the movable groove.
[0012] Optionally, the limiting groove is arranged on the first connecting part and is recessed in the direction of the first connecting part, the movable groove is arranged on the second connecting part and is recessed in the direction of the second connecting part, the first end portion of the elastic member is embedded in the limiting groove and abuts against the limiting groove, and the second end portion of the elastic member is slidably arranged in the movable groove.
[0013] Optionally, the first hinged part includes a hinge ring and two hinge plates, two hinge plates are arranged at intervals at one end of the first connecting part, the two hinge plates are arranged on both sides of the hinge ring, the elastic member is sleeved on the outside of the hinge ring, and the hinge plates are arranged on both sides of the elastic member.
[0014] Optionally, it further includes a gasket, wherein two gaskets are provided, and the two gaskets are respectively located at both sides of the second hinged part and embedded in both ends of the first hinged part.
[0015] On the other hand, the utility model provides a pair of glasses, comprising the above-mentioned elastic hinge for glasses, a glasses frame and glasses legs, wherein the glasses frame is provided with a stud, one end of the elastic hinge for glasses is connected to the stud, and the other end of the elastic hinge for glasses is used to be connected to the glasses legs.
[0016] According to the elastic hinge for glasses provided by the utility model, an elastic member is used for the elastic hinge for glasses, which is used as a connecting structure between the glasses frame and the glasses legs. The elastic hinge for glasses of the present application, on the one hand, adopts a design in which the elastic member surrounds the hinge structure, and the internal space of the elastic member is filled by the hinge structure, compared with other existing elastic hinge structures, so that the space is fully utilized, the volume of the elastic hinge for glasses is reduced, and the problem of aesthetics or wearing comfort caused by the excessive volume of the elastic hinge for glasses is avoided; in addition, the elastic member of the present application is a ring-like structure with an opening, and when the glasses legs are unfolded to approximately 90° The first connecting part abuts the first end, and the second connecting part abuts the second end; when the temple of the glasses is impacted or improperly used (such as violently bent) and further expands outward from approximately 90°, the distance between the first end and the second end gradually decreases, and the elastic member undergoes elastic deformation to provide elasticity to limit the further expansion of the temple of the glasses, thereby achieving direct force transmission between the elastic member and the first connecting part or between the elastic member and the second connecting part, avoiding the elastic member from being broken as a direct tensile force point; the setting of the hinge structure can reduce the external force on the elastic member and improve the elastic member's resistance to external force breakage. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments of the utility model will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.
[0018] Figure 1 This is a schematic structural diagram of an elastic hinge for glasses provided by an embodiment of the utility model;
[0019] Figure 2 This is an exploded schematic diagram of a first elastic hinge for glasses provided by an embodiment of the utility model;
[0020] Figure 3 This is a structural schematic diagram of a first connecting portion in a first elastic hinge for spectacles provided by an embodiment of the utility model;
[0021] Figure 4 It is an exploded schematic diagram of a second elastic hinge for spectacles provided by an embodiment of the utility model;
[0022] Figure 5 It is a structural schematic diagram of the first connecting portion in the second elastic hinge for spectacles provided by one embodiment of the utility model;
[0023] Figure 6This is an exploded schematic diagram of a third elastic hinge for spectacles provided by an embodiment of the utility model;
[0024] Figure 7 It is a structural schematic diagram of the first connecting portion in the third elastic hinge for spectacles provided by one embodiment of the utility model;
[0025] Figure 8 This is an exploded schematic diagram of a fourth elastic hinge for spectacles provided by an embodiment of the utility model;
[0026] Fig. 9 It is a structural schematic diagram of a gasket provided by an embodiment of the utility model;
[0027] Fig.10 It is a structural schematic diagram of glasses provided by an embodiment of the utility model;
[0028] The reference numerals in the drawings of the specification are as follows:
[0029] 1-elastic member; 11-first end; 111-boss; 112-first extension end; 12-second end; 121-second extension end; 2-first connecting portion; 21-limiting groove; 211-slot; 212-plane portion; 22-annular groove; 23-arc hole; 3-second connecting portion; 31-movable groove; 4-hinge structure; 41-first hinged portion; 411-hinge ring; 412-hinge plate; 42-second hinged portion; 43-hinge screw; 5-gasket; 51-annular plate; 52-cylinder; 6-eyeglass leg; 7-pile head. DETAILED DESCRIPTION
[0030] In order to make the technical problems, technical solutions and beneficial effects solved by the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.
[0031] In the description of the present invention, it should be understood that the terms "longitudinal", "radial", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In the description of the present invention, unless otherwise specified, "plurality" means two or more.
[0032] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0033] like Figure 1-8 As shown, in one embodiment, the utility model provides an elastic hinge for glasses, including an elastic member 1, a first connecting portion 2 and a second connecting portion 3, one end of the first connecting portion 2 is provided with a first hinge portion 41, and one end of the second connecting portion 3 is provided with a second hinge portion 42; the first hinge portion 41 and the second hinge portion 42 are hinged to form a hinge structure 4; the elastic member 1 is a ring-like structure with an opening, the elastic member 1 is arranged around the hinge structure 4, and the elastic member 1 has a first end 11 and a second end 12 that can be close to or away from each other at the opening position; when the temple 6 is unfolded to approximately 90°, the first connecting portion 2 abuts against the first end 11, and the second connecting portion 3 abuts against the second end 12; when the temple 6 is further expanded outward from approximately 90°, the distance between the first end 11 and the second end 12 gradually decreases, and the elastic member 1 undergoes elastic deformation to provide elasticity to limit the further expansion of the temple 6.
[0034] According to the elastic hinge for spectacles provided by the utility model, an elastic member 1 is used for the elastic hinge for spectacles, which is used as a connecting structure between the frame of spectacles and the legs of spectacles 6. The elastic hinge for spectacles of the present application, on the one hand, compared with other existing elastic hinge structures 4, adopts a design in which the elastic member 1 surrounds the hinge structure 4, and the internal space of the elastic member 1 is filled by the hinge structure 4, thereby achieving full utilization of the space, reducing the volume of the elastic hinge for spectacles, and avoiding the problem of aesthetics or wearing comfort caused by the excessive volume of the elastic hinge for spectacles.
[0035] The elastic member 1 of the present application is a ring-like structure with an opening. When the temple 6 is unfolded to approximately 90°, the first connecting portion 2 abuts the first end 11, and the second connecting portion 3 abuts the second end 12; when the temple 6 is impacted or improperly used (such as violently bent) and further expands outward from approximately 90°, the distance between the first end 11 and the second end 12 gradually decreases, and the elastic member 1 undergoes elastic deformation to provide elasticity to limit the further expansion of the temple 6, thereby achieving direct force transmission between the elastic member 1 and the first connecting portion 2 or between the elastic member 1 and the second connecting portion 3, thereby preventing the elastic member 1 from breaking as a direct tensile stress point; the provision of the hinge structure 4 can reduce the external force applied to the elastic member 1 and improve the elastic member 1's resistance to external force breakage.
[0036] In one embodiment, the elastic member 1 is selected from a metal spring or a non-metal spring, and the metal spring is selected from one of a zirconium-based amorphous alloy spring, a copper-based amorphous alloy spring, an iron-based amorphous alloy spring, a magnesium-based amorphous alloy spring and a titanium-based amorphous alloy spring.
[0037] In a preferred embodiment, the elastic member 1 is selected from zirconium-based amorphous alloys.
[0038] The material strength of zirconium-based amorphous alloy is high, with a tensile strength of 800-1500MPa, which is 2.5 times that of 316 stainless steel and 1.5 times that of titanium alloy. The hinge structure 4 can be designed to be lighter and thinner, reducing the weight of the accessories and improving the comfort of the wearer. At the same time, the high strength of the material ensures that the glasses will not deform during long-term use, thereby improving the quality of the glasses. The Vickers hardness of zirconium-based amorphous alloy is 440-540Hv, far exceeding that of stainless steel and titanium alloy, and has less wear during use. It will not deform or lose elasticity even in long-term use. The elastic deformation rate of zirconium-based amorphous alloy material is 0.6-1.5%, which is 6 times higher than that of 316 stainless steel, with better elasticity and better wearing comfort.
[0039] like Figure 2-8 As shown, in one embodiment, the number of the second hinged parts 42 is two, the number of the first hinged parts 41 is one, and the two second hinged parts 42 are arranged on both sides of the first hinged part 41; the first hinged part 41 and the second hinged part 42 are both annular, the first hinged part 41 and the second hinged part 42 are coaxially arranged, and a hinge screw 43 is arranged to pass through the first hinged part 41 and the second hinged parts 42 located on both sides of the first hinged part 41 to form a hinge structure 4, and the hinge screw 43 is fixed on the two second hinged parts 42, and the first hinged part 41 and the hinge screw 43 move relative to each other.
[0040] Specifically, through the above-mentioned structural setting, the first hinge part 41 and the second hinge part 42 are relatively rotated, so that the first hinge part 41 is the actual friction part in the hinge structure 4, and when the unfolding angle of the glasses leg 6 is further expanded from approximately 90°, the distance between the first end 11 and the second end 12 of the elastic member 1 is gradually reduced until the first end 11 of the elastic member 1 abuts against the second end 12, thereby realizing direct force transmission between the elastic member 1 and the first connecting part 2 or realizing direct force transmission between the elastic member 1 and the second connecting part 3, avoiding the elastic member 1 from breaking as a direct tensile stress point; the setting of the hinge structure 4 can reduce the external force on the elastic member 1, improve the elastic member 1's resistance to external force breakage, and ensure the long-term use of the amorphous metal elastic hinge for glasses.
[0041] Furthermore, the second hinged part 42 is arranged at one end of the second connecting part 3, and the first hinged part 41 is arranged at one end of the first connecting part 2. A hinge screw 43 is arranged to pass through the first hinged part 41 and the second hinged part 42 located on both sides of the first hinged part 41 to form a hinge structure 4, so that the first hinged part 41, the second hinged part 42 and the hinge screw 43 are relatively rotatable. Since the first hinged part 41 and the second hinged part 42 are both located at the center of the circle, the support part and the elastic part 1 are subjected to balanced force, thereby extending the service life of the metal elastic hinge.
[0042] like Figure 2-8 As shown, in one embodiment, a limiting groove 21 is provided on the first connecting portion 2, and the first end 11 of the elastic member 1 abuts against the limiting groove 21; a movable groove 31 is provided on the second connecting portion 3, and the second end 12 of the elastic member 1 can be slidably disposed in the movable groove 31.
[0043] Specifically, when the glasses are in a closed state, the first end 11 of the elastic member 1 abuts against the limiting groove 21, and the second end 12 of the elastic member 1 abuts against the first end of the movable groove 31. During the opening process of the temple 6, the second end 12 of the elastic member 1 moves in the movable groove 31 toward the second end of the movable groove 31. When the temple 6 is unfolded to approximately 90°, the second end 12 abuts against the second end of the movable groove 31. When the temple 6 is further expanded outward from approximately 90° due to impact or improper use (such as violent bending), the distance between the first end 11 and the second end 12 gradually decreases, and the elastic member 1 undergoes elastic deformation to provide elasticity to limit the further expansion of the temple 6, thereby achieving direct force conduction between the elastic member 1 and the first connecting portion 2 or between the elastic member 1 and the second connecting portion 3, thereby preventing the elastic member 1 from breaking as a direct tensile stress point. The arrangement of the hinge structure 4 can reduce the external force exerted on the elastic member 1 and improve the elastic member 1's resistance to external force breakage.
[0044] like Figure 2 and Figure 4As shown, in one embodiment, a movable groove 31 is formed on the second connecting portion 3, the opening of the movable groove 31 faces the first connecting portion 2, the elastic member 1 is sleeved on the outer periphery of the first hinge portion 41 and is located between the projected overlapping areas of the two second hinge portions 42, and the second end portion 12 of the elastic member 1 moves in the movable groove 31.
[0045] Specifically, the second end 12 of the elastic member 1 extends to both ends along the width direction of the elastic member 1, and both ends of the second end 12 move in the movable groove 31; when the glasses are in a closed state, the second end 12 of the elastic member 1 abuts against the first end of the movable groove 31, and during the opening process of the temple 6, the second end 12 of the elastic member 1 moves in the movable groove 31 toward the second end of the movable groove 31, and when the temple 6 is unfolded to approximately 90°, the second end 12 abuts against the second end of the movable groove 31; at this time, the second end 12 of the elastic member 1 gradually approaches the first end 11; by setting the movable groove 31, a moving space is provided for the second end 12 of the elastic member 1, and during the unfolding process of the temple 6, the second end 12 of the elastic member 1 moves in the movable groove 31 and gradually approaches the first end 11, thereby realizing direct force conduction between the elastic member 1 and the second connecting portion 3, thereby preventing the elastic member 1 from breaking as a direct tensile force point.
[0046] like Figure 2-3 As shown, in one embodiment, a limiting groove 21 is formed between the first connecting portion 2 and the first hinge portion 41 , and the first end portion 11 of the elastic member 1 is embedded in the limiting groove 21 and abuts against the inside of the limiting groove 21 .
[0047] Specifically, the first end 11 is a cylinder, and the diameter of the cylinder is greater than the thickness of the elastic member 1. The open end of the limiting groove 21 is rectangular, which is convenient for the elastic member 1 to be embedded in the limiting groove 21. The bottom of the cavity of the limiting groove 21 is an arc adapted to the first end 11. The first end 11 of the elastic member 1 in the form of a cylinder is embedded in the arc area in the limiting groove 21, thereby limiting the first end 11 of the elastic member 1 and preventing the first end 11 of the elastic member 1 from being displaced. During the opening process of the temple 6, only the second end 12 of the elastic member 1 moves in the movable groove 31 toward the second end of the movable groove 31, thereby ensuring the stability of the temple 6 during the opening process.
[0048] like Figure 4-5 As shown, in one embodiment, the first connecting portion 2 is provided with an annular groove 22 around the outer circumference of the first hinged portion 41, the annular groove 22 is formed with an arc segment with the rotation axis of the hinge structure 4 as the center, a limiting groove 21 is formed on the arc segment, and an arc hole 23 is formed at the position of the annular groove 22 corresponding to the movable groove 31, the first end 11 of the elastic member 1 abuts against one end of the limiting groove 21, and one side of the second end 12 of the elastic member 1 extends out of the arc hole 23 and slides in the movable groove 31.
[0049] Specifically, a boss 111 is provided on the side of the first end 11 of the elastic member 1 close to the first connection part 2 , a stepped slot 211 is provided on the side of the limiting groove 21 close to the first connection part 2 , and a flat portion 212 is provided on the side of the limiting groove 21 away from the first connection part 2 .
[0050] Specifically, the second end portion 12 of the elastic member 1 extends toward both ends along the width direction of the elastic member 1 , and the second end portion 12 on the side close to the arc hole 23 extends out of the arc hole 23 and contacts the groove body of the movable groove 31; the second end portion 12 on the side away from the arc hole 23 extends to the movable groove 31 on the other side and contacts the groove body; thereby both ends of the second end portion 12 move in the movable groove 31.
[0051] When the glasses are in a closed state, the second end 12 of the elastic member 1 abuts against the first end of the movable groove 31, and the boss 111 of the first end 11 of the elastic member 1 abuts against the planar portion 212 of the limiting groove 21. During the opening process of the temple 6, the second end 12 of the elastic member 1 moves in the movable groove 31 toward the second end of the movable groove 31, and the boss 111 of the first end 11 of the elastic member 1 moves in the limiting groove 21 toward the second end of the limiting groove 21. When the temple 6 is unfolded to approximately 90°, the second end 12 abuts against the second end of the movable groove 31; the lower surface of the boss 111 of the first end 11 abuts against the upper surface of the stepped slot 211 of the limiting groove 21, thereby limiting the first end 11 of the elastic member 1.
[0052] When the temple 6 is impacted or improperly used (such as violently bent) and expands further outward from approximately 90°, the distance between the first end 11 and the second end 12 gradually decreases until the first end 11 abuts against the second end 12, so as to provide elasticity to limit the further expansion of the temple 6, thereby achieving direct force transmission between the elastic member 1 and the first connecting portion 2 and the second connecting portion 3, and preventing the elastic member 1 from breaking as a direct tensile force point.
[0053] like Figure 6-8 As shown, in one embodiment, the limiting groove 21 is arranged on the first connecting part 2 and is recessed in the direction of the first connecting part 2, the movable groove 31 is arranged on the second connecting part 3 and is recessed in the direction of the second connecting part 3, the first end 11 of the elastic member 1 is embedded in the limiting groove 21 and abuts against the limiting groove 21, and the second end 12 of the elastic member 1 is slidably arranged in the movable groove 31.
[0054] Specifically, in one embodiment, the limiting groove 21 is provided on the first connecting portion 2 , and an open end of the limiting groove 21 is communicated with an upper surface of the first connecting portion 2 , forming a limiting groove 21 with two open sides.
[0055] In another embodiment, the limiting groove 21 is disposed on the first connecting portion 2 , and the opening end of the limiting groove 21 is disposed on a side close to the second connecting portion 3 , forming a limiting groove 21 with one side open.
[0056] In one embodiment, the moving groove 31 is disposed on the second connecting portion 3 , and an open end of the moving groove 31 is communicated with an upper surface of the second connecting portion 3 , forming a moving groove 31 with two open sides.
[0057] In another embodiment, the moving groove 31 is disposed on the second connecting portion 3 , and the opening end of the moving groove 31 is disposed on a side close to the first connecting portion 2 , forming a moving groove 31 with one side open.
[0058] The above-mentioned limiting grooves 21 and movable grooves 31 can be freely combined and arranged, and all combinations thereof are within the protection scope of the present application.
[0059] Specifically, a first extension end 112 is provided at the first end 11 of the elastic member 1 near the limiting groove 21, and the first extension end 112 abuts against the limiting groove 21; a second protrusion 121 is provided at the second end 12 of the elastic member 1 near the movable groove 31, and the second protrusion 121 is embedded in the movable groove 31 and can slide in the movable groove 31.
[0060] When the glasses are in a closed state, the second protrusion 121 provided at the second end 12 of the elastic member 1 is embedded in the movable groove 31 and is close to the open end of the movable groove 31; during the opening process of the temple 6, the second protrusion 121 of the second end 12 of the elastic member 1 moves in the movable groove 31 in a direction away from the open end of the movable groove 31; when the temple 6 is unfolded to approximately 90°, the second protrusion 121 of the second end 12 abuts against the end of the movable groove 31; when the temple 6 is impacted or improperly used (such as violently bent) and further expands outward from approximately 90°, the distance between the first end 11 and the second end 12 gradually decreases until the first end 11 abuts against the second end 12, so as to provide elasticity to limit the further expansion of the temple 6, thereby realizing direct force transmission between the elastic member 1 and the first connecting portion 2 and the second connecting portion 3, and avoiding the elastic member 1 from breaking as a direct tensile force point.
[0061] like Figure 6-8 As shown, in one embodiment, the first hinged portion 41 includes a hinged ring 411 and two hinged plates 412, two hinged plates 412 are arranged at intervals at one end of the first connecting portion 2, the two hinged plates 412 are arranged on both sides of the hinged ring 411, the elastic member 1 is sleeved on the outside of the hinged ring 411, and the hinged plates 412 are arranged on both sides of the elastic member 1.
[0062] Specifically, the hinge ring 411 can be provided separately and placed between the two hinge plates 412 when in use; further, the two ends of the hinge ring 411 can be connected to the inner surfaces of the two hinge plates 412 to form an integrated structure; by providing the hinge plates 412 on both sides of the hinge ring 411, the strength of the hinge structure 4 is enhanced, and the first hinge part 41, the second hinge part 42 and the hinge screw 43 are arranged to rotate relative to each other. Since the first hinge part 41 and the second hinge part 42 are both located at the center of the circle, the support member and the elastic member 1 are subjected to balanced force, thereby extending the service life of the metal elastic hinge.
[0063] like Fig. 9 As shown, in one embodiment, a gasket 5 is further included. Two gaskets 5 are provided. The two gaskets 5 are respectively located at both sides of the second hinge part 42 and embedded in the second hinge part 42 .
[0064] Specifically, the gasket 5 includes an annular sheet 51 and a cylinder 52. The annular sheet 51 is provided with a through hole at a position corresponding to the second hinge part 42. The cylinder 52 is connected to the through hole of the annular sheet 51 and extends in a direction perpendicular to the plane where the annular sheet 51 is located. The cylinder 52 is embedded in the second hinge part 42. The outer wall of the cylinder 52 contacts the inner wall of the second hinge part 42. The annular sheet 51 is arranged on the outer side of the second hinge part 42.
[0065] Furthermore, two gaskets 5 are provided, respectively located on both sides of the second hinge part 42 . The material of the gasket 5 is copper. The gasket 5 has a self-lubricating effect, which can reduce the friction between the structures, thereby improving the wear resistance of the hinge structure 4 and extending the service life of the hinge structure 4 .
[0066] like Fig.10 As shown, in one embodiment, the utility model provides a pair of glasses on the other hand, including the above-mentioned elastic hinge for glasses, a glasses frame and glasses legs 6, the glasses frame is provided with a stud 7, one end of the elastic hinge for glasses is connected to the stud 7, and the other end of the elastic hinge for glasses is used to connect with the glasses legs 6.
[0067] In one embodiment, a left stud 7 and a right stud 7 are respectively disposed on both sides of the glasses frame, and the glasses include two elastic hinges for glasses, which are respectively disposed at the left stud 7 and the right stud 7 of the glasses.
[0068] Furthermore, the connection method between one of the first connection part 2 and the second connection part 3 and the pile head 7 can also be selected from one of hot melt connection, riveting or screw connection.
[0069] In one embodiment, the other of the first connecting part 2 and the second connecting part 3 is used to connect to one end of the temple 6, and the connection method between the temple 6 and the first connecting part 2 or the second connecting part 3 is selected from one of hot melt connection, riveting or screw connection.
[0070] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. An elastic hinge for glasses, characterized in that: It includes an elastic member, a first connecting part and a second connecting part, wherein a first hinged part is provided at one end of the first connecting part, and a second hinged part is provided at one end of the second connecting part; the first hinged part and the second hinged part are hinged to form a hinge structure; the elastic member is a ring-like structure with an opening, the elastic member is arranged around the hinge structure, and the elastic member has a first end and a second end which can be close to or away from each other at the opening position; when the temple of the glasses is unfolded to approximately 90°, the first connecting part abuts against the first end, and the second connecting part abuts against the second end; when the temple of the glasses is further expanded outward from approximately 90°, the distance between the first end and the second end gradually decreases, and the elastic member undergoes elastic deformation to provide elasticity to limit the further expansion of the temple of the glasses.
2. The elastic hinge for spectacles according to claim 1, characterized in that: The elastic member is selected from a metal spring or a non-metal spring, and the metal spring is selected from one of a zirconium-based amorphous alloy spring, a copper-based amorphous alloy spring, an iron-based amorphous alloy spring, a magnesium-based amorphous alloy spring and a titanium-based amorphous alloy spring. The number of the second hinged parts is two, and the number of the first hinged parts is one, and the two second hinged parts are arranged on both sides of the first hinged part; the first hinged part and the second hinged part are both annular, and the first hinged part and the second hinged part are coaxially arranged, and a hinge screw is arranged to pass through the first hinged part and the second hinged parts located on both sides of the first hinged part to form a hinge structure, and the hinge screw is fixed on the two second hinged parts, and the first hinged part and the hinge screw move relative to each other.
3. The elastic hinge for spectacles according to claim 2, characterized in that: The first connecting portion is provided with a limiting groove, and the first end of the elastic member abuts against the limiting groove; the second connecting portion is provided with a moving groove, and the second end of the elastic member can be slidably disposed in the moving groove.
4. The elastic hinge for spectacles according to claim 3, characterized in that: The movable groove is formed on the second connecting part, and the opening of the movable groove faces the first connecting part. The elastic member is sleeved on the outer periphery of the first hinged part and is located between the overlapping projection areas of the two second hinged parts. The second end of the elastic member moves in the movable groove.
5. The elastic hinge for spectacles according to claim 4, characterized in that: A limiting groove is formed between the first connecting portion and the first hinge portion, and the first end portion of the elastic member is embedded in the limiting groove and abuts against the inside of the limiting groove.
6. The elastic hinge for spectacles according to claim 4, characterized in that: The first connecting part is provided with an annular groove around the outer circumference of the first hinged part, the annular groove is formed with an arc segment with the rotating axis of the hinge structure as the center, a limiting groove is formed on the arc segment, the annular groove is formed with an arc hole at the position corresponding to the movable groove, the first end portion of the elastic member abuts against one end of the limiting groove, and one side of the second end portion of the elastic member extends out of the arc hole and slides in the movable groove.
7. The elastic hinge for spectacles according to claim 3, characterized in that: The limiting groove is arranged on the first connecting part and is recessed in the direction of the first connecting part, the moving groove is arranged on the second connecting part and is recessed in the direction of the second connecting part, the first end of the elastic member is embedded in the limiting groove and abuts against the limiting groove, and the second end of the elastic member is slidably arranged in the moving groove.
8. The elastic hinge for spectacles according to claim 2, characterized in that: The first hinged part includes a hinged ring and two hinged plates. Two hinged plates are arranged at intervals at one end of the first connecting part. The two hinged plates are arranged on both sides of the hinged ring. The elastic member is sleeved on the outside of the hinged ring, and the hinged plates are arranged on both sides of the elastic member.
9. The elastic hinge for spectacles according to claim 1, characterized in that: It also includes a gasket, wherein two gaskets are provided, and the two gaskets are respectively located at two sides of the second hinged portion and embedded in the second hinged portion.
10. A pair of glasses, characterized in that: It comprises the elastic hinge for spectacles, spectacles frame and spectacles legs according to any one of claims 1 to 9, wherein the spectacles frame is provided with a stud, one end of the elastic hinge for spectacles is connected to the stud, and the other end of the elastic hinge for spectacles is used to connect to the spectacles legs.