Hinge structure of glasses

Abstract

The utility model belongs to the technical field of glasses manufacturing, and particularly relates to a hinge structure of glasses. The pair of glasses comprises a glasses frame and glasses legs, and further comprises a glasses frame lining assembly which comprises an upper lining and a lower lining which are fixed on the side part of the glasses frame at an interval; the glasses leg linings are arranged at the end parts of the glasses legs and are inserted between the upper linings and the lower linings; the base column comprises a head part and a shaft body with an internal thread, and the shaft body sequentially penetrates through the upper lining and the glasses leg lining and abuts against the upper surface of the lower lining; the locking screw is matched with the internal thread of the foundation pillar to fix the foundation pillar; the anti-rotation unit is arranged between the head of the foundation pillar and the upper lining and comprises an anti-rotation protrusion arranged on the head of the foundation pillar and a groove formed in the upper lining, and the anti-rotation protrusion is meshed with the groove to limit rotation of the foundation pillar. According to the utility model, through the arrangement of the glasses frame bushing assembly, the glasses leg bushing, the base column, the locking screw and the anti-rotation unit, the stable fixation of the hinge is realized.

Description

Technical Field

[0001] This utility model belongs to the field of eyeglasses manufacturing technology, and specifically refers to a hinge structure for eyeglasses. Background Technology

[0002] Eyeglasses are widely used in daily life and specific work scenarios as vision correction tools, protective equipment, and fashion accessories. They not only help people with poor vision to see clearly, but also provide the eyes with functions such as ultraviolet protection and impact protection.

[0003] In existing technologies, eyeglass hinge structures often use a single screw to secure the frame to the temple. This simple method has significant drawbacks. For example, when the glasses are frequently opened and closed, the rotation of the temple causes the screw to be under continuous stress, which can gradually wear down the threads of the screw and the connection, leading to a loose fit. In addition, minor bumps or vibrations during daily wear can also exacerbate the loosening of the screw, causing the temple to wobble, become stuck when opening and closing, or even for the screw to fall off, causing the temple to separate from the frame and affecting the normal use of the glasses. Utility Model Content

[0004] This invention solves the problems mentioned in the background art by setting up a frame bushing assembly, temple bushing, base post, locking screw and anti-rotation unit to achieve stable hinge fixation.

[0005] The purpose of this utility model is achieved as follows: a hinge structure for eyeglasses, the eyeglasses including a frame and temples, and further including:

[0006] The eyeglass frame bushing assembly includes an upper bushing and a lower bushing that are fixed at a distance from and fixed to the side of the eyeglass frame.

[0007] A temple bushing is provided at the end of the temple and inserted between the upper bushing and the lower bushing.

[0008] The base column includes a head and a shaft with internal threads, the shaft passing through the upper bushing and the temple bushing in sequence and abutting against the upper surface of the lower bushing;

[0009] Locking screws engage with the internal threads of the base column to secure it.

[0010] An anti-rotation unit is located between the base column head and the upper bushing, and includes an anti-rotation protrusion on the base column head and a groove on the upper bushing. The anti-rotation protrusion and the groove engage to restrict the rotation of the base column.

[0011] The present invention is further configured to include a pressure washer disposed between the lower bushing and the locking screw.

[0012] The present invention is further configured such that the pressure washer has a countersunk hole, and the head of the locking screw is embedded in the countersunk hole.

[0013] The present invention is further configured to include a snap-fit ​​unit disposed between the temple bushing and the side of the frame, the snap-fit ​​unit being used to limit the maximum unfolding angle of the temple.

[0014] The present invention is further configured such that the buckle unit includes:

[0015] The mounting plate is fitted onto the outer wall of the temple bushing.

[0016] The stop block connects to the side of the frame at one end and to the upper and lower bushings at the other end.

[0017] When the temple is extended to its maximum angle through the cooperation of the temple bushing and the base shaft, the locking platform and the stop block come into contact.

[0018] The present invention is further configured such that the temple bushing is made of an elastic material.

[0019] The present invention is further configured such that the shaft of the base column is a polygonal prism shaft.

[0020] By adopting the above technical solution, the beneficial effects that this utility model can achieve are:

[0021] 1. By engaging the anti-rotation protrusion and groove of the anti-rotation unit, the rotation of the base post is restricted, preventing the locking screw from loosening as the temple rotates, thus solving the problem of easy loosening of a single screw fixation.

[0022] 2. The base shaft passes through the upper bushing and temple bushing in sequence and abuts against the lower bushing. It is fixed with locking screws to form a stable multi-layer support structure, which reduces temple wobbling and solves the problem of temple sagging due to unstable fixing.

[0023] 3. By using the locking platform of the snap-fit ​​unit to abut against the stop, the maximum extension angle of the temples is limited, avoiding structural damage caused by excessive extension and solving the problem of temples easily over-extension. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0025] Figure 2 This is a utility model Figure 1 A magnified structural diagram of part A;

[0026] Figure 3 This is an exploded view of this utility model.

[0027] The reference numerals in the diagram are as follows: 1. Frame; 2. Temple; 3. Frame bushing assembly; 30. Upper bushing; 31. Lower bushing; 4. Temple bushing; 5. Base post; 50. Head; 51. Axis; 6. Locking screw; 7. Anti-rotation unit; 70. Anti-rotation protrusion; 71. Groove; 8. Pressure washer; 9. Countersunk hole; 10. Snap-fit ​​unit; 100. Snap-fit ​​platform; 101. Stop. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. See also: Figure 1-3 :

[0029] Example 1:

[0030] This embodiment provides a hinge structure for eyeglasses, which includes a frame 1 and temples 2, and further includes:

[0031] The eyeglass frame bushing assembly 3 includes an upper bushing 30 and a lower bushing 31 that are fixed at a distance from the side of the eyeglass frame 1;

[0032] The temple bushing 4 is located at the end of the temple 2 and is inserted between the upper bushing 30 and the lower bushing 31.

[0033] The base column 5 includes a head 50 and a shaft 51 with internal threads. The shaft 51 passes through the upper bushing 30 and the temple bushing 4 in sequence and abuts against the upper surface of the lower bushing 31.

[0034] The locking screw 6 engages with the internal thread of the base column 5 to fix the base column 5;

[0035] The anti-rotation unit 7 is located between the head 50 of the base column 5 and the upper bushing 30, and includes an anti-rotation protrusion 70 located on the head 50 of the base column 5 and a groove 71 located on the upper bushing 30. The anti-rotation protrusion 70 and the groove 71 engage to restrict the rotation of the base column 5.

[0036] The frame bushing assembly 3 consists of an upper bushing 30 and a lower bushing 31, providing fixed support for the hinge structure. The two bushings are spaced apart and relatively fixed. Both the upper bushing 30 and the lower bushing 31 are columnar structures with a central through-hole. The upper bushing 30 is located at the top of the frame bushing assembly 3, with its lower end contacting the upper surface of the temple bushing 4. The lower bushing 31 is symmetrical to the upper bushing 30, located at the bottom of the frame bushing assembly 3, with its upper end contacting the lower surface of the temple bushing 4. The upper bushing 30 and the lower bushing 31 can be fixed to the side of the frame 1 by means of integral molding or other methods, and their relative positions remain unchanged.

[0037] The temple bushing 4 is used to connect the temple 2 and the frame bushing assembly 3. It is a sleeve-shaped structure with a through hole in the center for the base post 5 shaft 51 to pass through. It is fixed to the end of the temple 2 by integral molding or bonding, and is inserted between the upper bushing 30 and the lower bushing 31. The upper end contacts the upper bushing 30 and the lower end contacts the lower bushing 31. It can rotate around the base post 5 shaft 51.

[0038] The base post 5 is integrally formed from the head 50 and the shaft 51. The head 50 is mostly a circular or polygonal block structure with a diameter larger than that of the base post 5 and the shaft 51. It is located directly above the upper bushing 30, and its lower surface contacts the upper surface of the upper bushing 30. It is relatively fixed by the engagement of the anti-rotation protrusion 70 with the groove 71 of the upper bushing 30. The shaft 51 is mostly a columnar structure with an internal thread extending axially. It passes through the through holes of the upper bushing 30 and the temple bushing 4 in sequence. Its lower end abuts against the upper surface of the lower bushing 31 and engages with the locking screw 6 through the internal thread to complete the axial fixation of the base post 5.

[0039] The locking screw 6 is a standard screw with external threads. The head can be provided with a slot for easy tool tightening. It is inserted from below the lower bushing 31 and engages with the internal thread of the base column 5 shaft 51. The head abuts against the lower surface of the lower bushing 31, thereby achieving a detachable fastening connection through the thread engagement with the base column 5 shaft 51, axially locking the base column 5 and preventing the base column 5 from moving up and down.

[0040] The anti-rotation unit 7 consists of an anti-rotation protrusion 70 and a groove 71, used to restrict the rotation of the base post 5 relative to the upper bushing 30, and to prevent the locking screw 6 from loosening due to the rotation of the base post 5 with the temple 2. The anti-rotation protrusion 70 is a block-shaped structure integrally formed and protruding outward from the lower surface of the head 50 of the base post 5. Its cross-section is rectangular or trapezoidal, and it matches the groove 71 opened on the upper surface of the upper bushing 30. It can be a single protrusion or multiple evenly distributed protrusions.

[0041] During assembly, the temple bushing 4 is fixed to the end of the temple 2 and inserted between the upper bushing 30 and the lower bushing 31 of the frame bushing assembly 3; the shaft 51 of the base post 5 passes through the through holes of the upper bushing 30 and the temple bushing 4 in sequence, and the lower end abuts against the upper surface of the lower bushing 31. At the same time, the anti-rotation protrusion 70 of the head 50 of the base post 5 is embedded in the groove 71 of the upper bushing 30 to form a mesh; the locking screw 6 is inserted from below the lower bushing 31 and is tightened by engaging with the internal thread of the shaft 51 of the base post 5 to fix the base post 5 axially, so that the upper bushing 30, the temple bushing 4, and the lower bushing 31 are tightly clamped between the head 50 of the base post 5 and the locking screw 6.

[0042] In use, the temple 2 opens and closes by rotating around the base post 5 axis 51 via the temple bushing 4. Since the anti-rotation protrusion 70 engages with the groove 71, the base post 5 cannot rotate with the temple 2, ensuring that the locking screw 6 will not loosen due to the rotation of the base post 5. The base post 5 axis 51 serves as a fixed axis, ensuring the stability of the temple 2 rotation. At the same time, the cooperation of multiple bushings restricts the radial wobble of the temple 2.

[0043] This embodiment also includes a pressure-distributing washer 8. In this design, the pressure-distributing washer 8 has a sheet-like structure and is disposed between the lower bushing 31 and the locking screw 6. One side of the washer contacts the lower surface of the lower bushing 31, and the other side contacts the head of the locking screw 6. The purpose of this design is to distribute the pressure applied by the locking screw 6 through the sheet-like structure of the pressure-distributing washer 8, avoiding pressure concentration that could cause deformation of the lower bushing 31. At the same time, its close contact with the lower bushing 31 and the locking screw 6 enhances the stability of the overall structure and ensures the firmness of the hinge connection.

[0044] The pressure washer 8 has a countersunk hole 9, and the head of the locking screw 6 is fitted into the countersunk hole 9. In this design, the countersunk hole 9 of the pressure washer 8 is adapted to the shape of the head of the locking screw 6, so that the head of the locking screw 6 is fitted into the countersunk hole 9. The purpose of the above design is to limit the head of the locking screw 6 by the countersunk hole 9, preventing it from deflecting under force, while reducing the overall thickness of the pressure washer 8 and the head of the locking screw 6, avoiding the components protruding and affecting the wearing comfort of the glasses, and further enhancing the stability of the structural connection.

[0045] It also includes a latching unit 10 located between the temple bushing 4 and the side of the frame 1. This latching unit 10 is used to limit the maximum unfolding angle of the temple 2. The latching unit 10 includes a latching platform 100 sleeved on the outer wall of the temple bushing 4, and a stop block 101 integrally formed and fixed to the side of the frame 1 at one end, and bonded to the upper bushing 30 and the lower bushing 31 at the other end. When the temple 2 is unfolded to its maximum angle through the cooperation of the temple bushing 4 and the base post 5 shaft 51, the latching platform 100 and the stop block 101 abut against each other. In this design, the latching platform 100 of the latching unit 10 is a protruding structure sleeved on the outer wall of the temple bushing 4, and the stop block 101 is a plate-shaped structure with one end connected to the side of the frame 1 and the other end connected to the upper bushing 30 and the lower bushing 31. The two form an abutting relationship through positional cooperation. The purpose of the above design is that when the temple 2 is extended to its maximum angle, the locking platform 100 and the stop block 101 abut against each other, and the physical blocking of the protruding and plate-like structures restricts the temple 2 from continuing to rotate, so as to avoid damage to the hinge structure due to excessive extension. At the same time, the extension limit of the temple 2 is clearly defined to ensure the stability during use.

[0046] The temple bushing 4 is made of an elastic material. In this design, the temple bushing 4 can be made of a hard rubber material such as resin to prevent it from easily breaking when rotating around the axis 51 of the base post 5. The purpose of this design is to utilize the elastic properties of the material to buffer the impact force during rotation when the temple 2 is opening and closing, reduce the hard friction and wear between the temple bushing 4 and the upper and lower bushings 31, and at the same time provide a certain deformation space when the temple 2 is subjected to external pressure, so as to avoid structural damage due to rigid collision and extend the service life of the hinge.

[0047] The shaft 51 of the base post 5 is a polygonal prism shaft. Since the temple bushing 4 is made of elastic material, the edges of the polygonal prism shaft can form multiple points of contact with the inner wall of the elastic bushing. When the temple 2 rotates or is subjected to force, the deformation of the elastic material enhances the friction and interlocking force between the two, restricting the relative sliding between the temple bushing 4 and the shaft 51 and improving torsional stability. At the same time, the polygonal structure of the polygonal prism shaft allows the temple 2 to form a sense of locking at multiple angle positions corresponding to the edges during rotation, realizing multi-angle switching positioning. Combined with the cushioning characteristics of the elastic material, it not only prevents the temple 2 from becoming loose or wobbly during use, but also allows the user to adjust the unfolding angle of the temple 2 according to wearing needs and maintain stability, making rotation and positioning more precise and stable.

[0048] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Therefore, all equivalent changes made to the structure, shape, and principle of the present utility model should be covered within the scope of protection of the present utility model.

Claims

1. A hinge structure for eyeglasses, the eyeglasses comprising a frame (1) and temples (2), characterized in that, Also includes: The frame bushing assembly (3) includes an upper bushing (30) and a lower bushing (31) fixed at a distance from the side of the frame (1). The temple bushing (4) is located at the end of the temple (2) and is inserted between the upper bushing (30) and the lower bushing (31); The base column (5) includes a head (50) and a shaft (51) with internal threads. The shaft (51) passes through the upper bushing (30) and the temple bushing (4) in sequence and abuts against the upper surface of the lower bushing (31). Locking screw (6) engages with the internal thread of the base column (5) to fix the base column (5); The anti-rotation unit (7) is located between the head (50) of the base column (5) and the upper bushing (30), and includes an anti-rotation protrusion (70) located on the head (50) of the base column (5) and a groove (71) located on the upper bushing (30). The anti-rotation protrusion (70) and the groove (71) engage to restrict the rotation of the base column (5).

2. The hinge structure for eyeglasses according to claim 1, characterized in that, It also includes a pressure washer (8) disposed between the lower bushing (31) and the locking screw (6).

3. The hinge structure for eyeglasses according to claim 2, characterized in that, The pressure washer (8) is provided with a countersunk hole (9), and the head of the locking screw (6) is embedded in the countersunk hole (9).

4. The hinge structure for eyeglasses according to claim 1, characterized in that, It also includes a snap-fit ​​unit (10) located between the temple bushing (4) and the side of the frame (1), which is used to limit the maximum unfolding angle of the temple (2).

5. The hinge structure for eyeglasses according to claim 4, characterized in that, The latching unit (10) includes: The mounting plate (100) is fitted onto the outer wall of the temple bushing (4); The stop (101) is connected to the side of the frame (1) at one end and to the upper bushing (30) and lower bushing (31) at the other end. When the temple (2) is extended to its maximum angle through the cooperation of the temple bushing (4) and the shaft (51) of the base post (5), the mounting plate (100) and the stop block (101) come into contact.

6. The hinge structure for eyeglasses according to claim 1, characterized in that, The temple bushings (4) are made of elastic material.

7. The hinge structure for eyeglasses according to claim 6, characterized in that, The shaft (51) of the base column (5) is a polygonal prism shaft.

Images