Anti-loose hinge

Abstract

An anti-loose hinge comprises a first hinge piece connected with a glasses leg, a second hinge piece connected with a glasses frame and a hinge assembly used for connecting the first hinge piece and the second hinge piece and enabling the first hinge piece and the second hinge piece to rotate, the hinge assembly comprises a rotating piece and a fixing piece, the first hinge piece rotates around the rotating piece, and the second hinge piece rotates around the fixing piece. The rotating piece and the fixing piece are connected with the second hinge piece from the two ends of the second hinge piece respectively, and the rotating piece and the fixing piece are fixed to form hinge joint between the first hinge piece and the second hinge piece. The hinge assembly has the advantages that when the hinge assembly is fixed, the fixing piece is hidden in the rotating piece, for example, the fixing piece and the rotating piece are connected through threads, the outer surface, making contact with the first hinge piece, of the rotating piece is arranged to be a smooth surface, and therefore the threads on the outer surface of the fixing piece cannot make contact with the first hinge piece; therefore, the problem that the first hinge piece drives the fixing piece to loosen when rotating is avoided.

Description

Technical Field

[0001] The utility model relates to a hinge for connecting a temple and a frame, in particular to an anti-loosening hinge. Background Art

[0002] Eyeglass hinges are key components that connect the two temples to the frame, allowing the temples to open and close smoothly to accommodate various face shapes and provide a comfortable wearing experience. Hinges are typically made of metal or plastic and must be designed to ensure sufficient strength and durability, while also ensuring flexible opening and closing and low noise levels. High-quality hinges also enhance the overall stability of glasses, reducing wear and damage caused by frequent use, and extending the lifespan of the glasses.

[0003] Chinese patent document CN221572949U discloses a hinge for assembling glasses, including a glasses hinge body, wherein the glasses hinge body includes two staggered hinges and a fixing bolt passing through the two hinges. The hinge connected to the frame is provided with a hinge and a fixing bolt that cooperate with the surface threads of the fixing bolt to fix the frame; the hinge connected to the temple rotates around the fixing bolt.

[0004] The above solution can ensure that the temples rotate around the frame. However, the above solution has the following disadvantages: because the hinge connected to the temple needs to rotate, the surface of the hinge that contacts the fixing bolt is not provided with threads. During the rotation of the hinge connected to the temple, its inner surface contacts the fixing bolt and transmits rotational force to it. Over time, the fixing bolt may loosen, causing the connection between the temple and the frame to loosen. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides an anti-loosening hinge which prevents the hinged joint between the temple and the frame from loosening.

[0006] To achieve the above-mentioned purpose, the technical solution of the present invention is as follows: an anti-loosening hinge, comprising a first hinge connected to the temple, a second hinge connected to the frame, and a hinge assembly for connecting the above two and enabling the above two to rotate, the hinge assembly comprising a rotating member and a fixed member, the first hinge rotates around the rotating member, the rotating member and the fixed member are respectively connected to the second hinge member from both ends of the second hinge member, the rotating member and the fixed member are fixed to form a hinge between the first hinge member and the second hinge member.

[0007] The beneficial effects of the present invention are as follows: when the hinge assembly is fixed, the fixing member is concealed within the rotating member, for example, by a threaded connection between the two. Furthermore, the outer surface of the rotating member that contacts the first hinge member is smooth, preventing the threads on the outer surface of the fixing member from contacting the first hinge member, thereby preventing the fixing member from loosening when the first hinge member rotates. Furthermore, when the glasses are worn, the fixing member can be inserted from below the first hinge member and secured to the rotating member. In this case, a smooth surface can be provided on the upper surface of the rotating member to be engraved with a trademark or other pattern. Compared to the prior art, which requires a cross-shaped groove on the upper surface of the bolt to accommodate a screwdriver or other fixing tool, the smooth, pattern-engraved upper surface of the rotating member enhances the overall aesthetics of the glasses and increases the number of design options.

[0008] Furthermore, the first hinged member and the second hinged member are respectively provided with a first hinge hole and a second hinge hole that can be spliced ​​together, and the rotating member includes a sleeve portion, the outer surface of the sleeve portion cooperates with the inner surface of the first hinge hole so that the first hinged member can rotate around the rotating member; a connecting hole connected to the fixing member is provided on the sleeve portion at a position opposite to the fixing member.

[0009] The connection hole provided on the sleeve portion can be positioned at the center of the end surface of the sleeve portion opposite to the fixed part, thereby achieving effective wrapping of the fixed part by the sleeve portion; at the same time, the maximum depth of the connection hole provided on the end surface opposite to the fixed part can be set to be equivalent to the height of the sleeve portion, so that the connection between the fixed part and the rotating part is more stable.

[0010] Furthermore, the hinge assembly further includes a limiting member, which cooperates with the second hinge hole to form a positioning between the rotating member and the second hinge member.

[0011] The limiting member is used to form a positioning between the rotating member and the second hinge member to prevent the rotating member from loosening due to friction when the first hinge member rotates, so as to further improve the reliability of the hinge assembly in this application and prevent it from loosening during use.

[0012] Furthermore, the limiting member and the rotating member are integrally arranged, the limiting member is provided with a snap-fitting tooth, a snap-fitting hole for placing the limiting member is provided in the second hinge hole, and a snap-fitting groove is provided in the snap-fitting hole corresponding to the snap-fitting tooth.

[0013] The integrally formed stopper and rotating member can be directly produced through thermoplastic molding, reducing manufacturing complexity. The engaging grooves and engaging teeth can be circumferentially distributed on the outer circumference of the connected component to enhance the reliability of the positioning provided by their engagement. Furthermore, the engaging holes and engaging grooves can be shaped differently to achieve a desired positioning effect when engaged.

[0014] Furthermore, the limiting member is integrally provided with the rotating member, the second hinge hole comprises a through hole for the sleeve portion to pass through and a blind hole for the limiting member to be placed, and the outer peripheral surface of the limiting member and the inner diameter surface of the blind hole cooperate to form positioning.

[0015] In addition to reducing manufacturing difficulty through integrated settings, achieving positioning effects through matching of shapes, such as elliptical shapes, can not only effectively reduce mold opening costs and subsequent assembly processes, thereby further reducing processing costs and difficulty; in addition, matching of shapes can also play a fool-proof role during the assembly process, effectively improving assembly efficiency.

[0016] Furthermore, the material hardness of the limiting component is greater than the material hardness of the second hinge component.

[0017] To ensure connection strength, hinge assemblies are typically made of hard materials. Considering the overall structural weight, the first and second hinge members are typically made of materials such as copper and titanium. Furthermore, because the stopper mates with the second hinge hole, the rotational force generated by the first hinge member is transmitted from the first hinge hole to the sleeve, and then from the rotating member to the engaging teeth on the stopper. This effectively reduces wear between the engaging teeth and the engaging groove, significantly increasing service life.

[0018] Furthermore, the limiting member and the rotating member are arranged separately, the limiting member includes a penetration hole for the rotating member to pass through, the second hinge hole includes a through hole for the sleeve portion to pass through and a clamping hole for the limiting member to be placed, the limiting member is provided with a clamping tooth, and the corresponding clamping tooth is provided in the clamping hole with a clamping groove matching it.

[0019] The separately arranged limiting member and rotating member form a double positioning through the through hole and the clamping hole, so as to further enhance the positioning effect of the limiting member on the rotating member and prevent it from loosening during use.

[0020] Furthermore, the material hardness of the limiting member is greater than the material hardness of the second hinge member; the material hardness of the limiting member is greater than the material hardness of the rotating member or is equivalent to the material hardness of the rotating member.

[0021] The above setting makes the rotating part and the limiting part contact, and the hardness of the two is equivalent or the hardness of the limiting part is greater than that of the rotating part so that the torque transmitted on the rotating part acts directly on the limiting part rather than the second hinge part, thereby isolating the wear caused by the hard material directly acting on the soft material, further improving the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a front view of the first embodiment of the present utility model after mating;

[0023] Figure 2 This is an axonometric view of the hinge assembly of Example 1 of the present utility model;

[0024] Figure 3 This is a top view of the second hinge member of Example 1 of the present utility model;

[0025] Figure 4 This is an axonometric view of the second hinge and hinge assembly of Example 1 of the present utility model;

[0026] Figure 5 This is a top view of the second hinge member of Example 2 of the present utility model;

[0027] Figure 6 This is an axonometric view of the second hinge and hinge assembly of Example 2 of the present utility model;

[0028] Figure 7 This is a top view of the second hinge member of Example 3 of the present utility model;

[0029] Figure 8 This is an axonometric view of the second hinge and hinge assembly of Example 3 of the present invention. DETAILED DESCRIPTION

[0030] The utility model embodiment of a kind of anti-loose hinge Figure 1-8 As shown, the hinge assembly 3 includes a first hinge 1 connected to the temple, a second hinge 2 connected to the frame, and a hinge assembly 3 for connecting the two and enabling rotation between the two. The first hinge 1 and the second hinge 2 are respectively provided with a first hinge hole 11 and a second hinge hole 21 that can be spliced ​​together. After splicing, the first hinge hole 11 and the second hinge hole 21 appear to be superimposed in a front view. The hinge assembly 3 includes a rotating member 31 that cooperates with the inner surface of the first hinge hole 11 to allow the first hinge 1 to rotate, a fixing member for fixing the first hinge 1 and the second hinge 2, and a limiting member 33 for limiting the position between the rotating member 31 and the second hinge 2.

[0031] A connecting hole 312 with an internal thread is provided at the center of the end surface of the rotating member 31 opposite the fixed member 32. The fixed member 32 is inserted into the connecting hole 312 to secure the rotating member 31 to the fixed member 32. In addition, a threaded hole 24 is provided on one side of the second hinge hole 21 for connecting to the fixed member 32. This allows the second hinge member 2 to be hinged between the first hinge member 1 and the fixed member 32 and the rotating member 31.

[0032] Example 1

[0033] As attached Figure 1-4As shown, the limiting member 33 and the rotating member 31 are arranged as one body, that is, the limiting member 33 is connected to the sleeve portion 311, and a clamping hole 22 for placing the limiting member 33 is provided in the second hinge hole 21, and a plurality of clamping teeth 331 are circumferentially provided on the outer surface of the limiting member 33, and a clamping groove 221 corresponding to the above-mentioned plurality of clamping teeth 331 is provided in the clamping hole 22.

[0034] Example 2

[0035] As attached Figure 5-6 As shown, the difference between Example 2 and Example 1 is that the outer shape of the limiting member 33 is grouped in pairs, with straight and curved portions symmetrical within each group. Similarly, the second hinge hole 21 includes a blind hole 23 that matches the outer shape of the limiting member 33 and a through hole 25 for the rotational member 31 to pass through. The outer shape of the blind hole 23 engages with the limiting member 33, thereby completing the position limiting between the second hinge member 2 and the rotational member 31.

[0036] In the above two embodiments, the material hardness of the limiting member 3 is greater than the material hardness of the second hinge member.

[0037] Example 3

[0038] As attached Figure 7-8 As shown, the difference between Example 3 and Example 1 lies in that the limiting member 33 and the rotating member 31 are separate components. The limiting member 33 is provided with a positioning hole 332 for the rotating member 31 to pass through and cooperate with the head of the rotating member 31 to form a positioning hole. The shapes of the hole 332 and the head of the rotating member 31 can refer to the shapes of the limiting member 33 and the blind hole 23 in Example 2. Secondly, as described in Example 1, a plurality of engaging teeth 331 are circumferentially provided on the outer surface of the limiting member 33. A engaging hole 22 for the limiting member 33 is provided within the second hinge hole 21. Engaging grooves 221 corresponding to the aforementioned engaging teeth 331 are provided within the engaging hole 22. In this embodiment, the material hardness of the limiting member 33 is greater than that of the second hinge member 2; the material hardness of the limiting member 33 is greater than or equivalent to that of the rotating member 31.

[0039] It should be noted that the structures in Examples 1-3 do not exist only in a single embodiment, that is, in each embodiment, two structures can be selected from the above embodiments to serve as dual positioning between the limiting member 33 and the rotating member 31 .

[0040] Since the installation processes of the three embodiments are similar, only the installation process of embodiment 1 is described below: first, the first hinge 1 and the second hinge 2 are connected and the first hinge hole 11 and the second hinge hole 2 are in a spliced ​​state; then, the limiting member 33 and the rotating member 31 are inserted into one side of the second hinge hole 21, and a positioning is formed between the limiting member 33 and the second hinge hole 21; finally, the fixing member 32 is inserted into the other side of the second hinge hole 21, that is, the position of the threaded hole 24, so that the fixing member 32 is fixed to the connecting hole 312 on the sleeve part 311.

[0041] The above embodiment is only one preferred embodiment of the present invention. Common changes and substitutions made by those skilled in the art within the scope of the technical solution of the present invention are all included in the protection scope of the present invention.

Claims

1. An anti-loosening hinge comprising a first hinge connected to a temple, a second hinge connected to a frame, and a hinge assembly for connecting the first and second hinges and enabling rotation therebetween, characterized in that: The hinge assembly includes a rotating part and a fixed part. The first hinge part rotates around the rotating part. The rotating part and the fixed part are respectively connected to the second hinge part from both ends of the second hinge part. The rotating part and the fixed part are fixed to form a hinge between the first hinge part and the second hinge part. After the fixed part is connected to the rotating part, it is hidden inside the rotating part. The first hinge part passes through the rotating part to avoid contact with the outer surface of the fixed part.

2. The anti-loosening hinge according to claim 1, characterized in that: The first hinged member and the second hinged member are respectively provided with a first hinge hole and a second hinge hole that can be spliced ​​together. The rotating member includes a sleeve portion, the outer surface of the sleeve portion cooperates with the inner surface of the first hinge hole so that the first hinged member can rotate around the rotating member; a connecting hole connected to the fixing member is provided on the sleeve portion at a position opposite to the fixing member.

3. The anti-loosening hinge according to claim 1, characterized in that: The hinge assembly further includes a limiting member, which cooperates with the second hinge hole to form a positioning between the rotating member and the second hinge member.

4. The anti-loosening hinge according to claim 3, characterized in that: The limiting member and the rotating member are integrally arranged, the limiting member is provided with a snap-fitting tooth, a snap-fitting hole for placing the limiting member is provided in the second hinge hole, and a snap-fitting groove is provided in the snap-fitting hole corresponding to the snap-fitting tooth.

5. The anti-loosening hinge according to claim 3, characterized in that: The limiting member is integrally provided with the rotating member, the second hinge hole comprises a through hole for the sleeve portion to pass through and a blind hole for the limiting member to be placed, and the outer peripheral surface of the limiting member and the inner diameter surface of the blind hole cooperate to form positioning.

6. The anti-loosening hinge according to any one of claims 4-5, characterized in that: The material hardness of the limiting component is greater than the material hardness of the second hinge component.

7. The anti-loosening hinge according to claim 3, characterized in that: The limiting member and the rotating member are arranged separately, and the limiting member includes a penetration hole for the rotating member to pass through and form a positioning with it. The second hinge hole includes a through hole for the sleeve part to pass through and a clamping hole for the limiting member to be placed. The limiting member is provided with a clamping tooth, and a clamping groove corresponding to the clamping tooth is provided in the clamping hole.

8. The anti-loosening hinge according to claim 7, characterized in that: The material hardness of the limiting member is greater than the material hardness of the second hinge member; the material hardness of the limiting member is greater than the material hardness of the rotating member or is equivalent to the material hardness of the rotating member.

Images