Connecting and limiting structure of nose pad of glasses

Abstract

The utility model provides a connection limiting structure of a glasses nose pad, which comprises a nose pad base and a nose pad bracket, and the nose pad base is fixed on a glasses frame; the nose pad support comprises a connecting part, a circumferential positioning part and a rotating shaft, the connecting part is used for being connected with the nose pad body, the circumferential positioning part is located below the connecting part, the rotating shaft is located in the circumferential positioning part, a rotating groove is axially formed in the nose pad base, the rotating shaft is rotationally matched in the rotating groove, and the rotating shaft is located in the rotating groove. The circumferential positioning part is positioned and matched with the periphery of the nose support base in the circumferential direction; the two ends of the rotating shaft are each provided with a limiting part, and the two limiting parts are in axial abutting fit with the two ends of the nose support base respectively so as to limit the rotating shaft from axially disengaging from the rotating groove, so that the rotating shaft can be firmly limited in the rotating groove, the connection stability between the nose support support and the nose support base is improved, and the service life of the nose support is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of glasses accessories, especially relates to a connecting and limiting structure of glasses nose pad. BACKGROUND

[0002] In the wearing of glasses, the nose pad plays a crucial role. As a supporting component cooperating with the nose bridge, it can ensure that the glasses are stably worn on the face and effectively prevent them from falling off. Glasses with adjustable nose pads have taken this comfort and stability to the extreme.

[0003] To adapt to users with different nose bridge sizes, the prior art provides a nose pad support to rotatably mount the nose pad body on the glasses frame. Through the rotational cooperation of the nose pad support and the nose pad base on the glasses frame, the rotation adjustment of the nose pad is realized. In addition to the rotational cooperation, the nose pad base and the nose pad support are generally elastically matched. While the nose pad support is detachably mounted, it is prevented from being separated from the nose pad base. However, the wear caused by long-term use of glasses and the lubrication effect of human sweat can easily cause the nose pad support and the nose pad base to loosen. The nose pad support can easily be axially separated from the nose pad base, the structure is unstable, the stability is poor, and the service life is affected. SUMMARY

[0004] The utility model aims at providing a connecting and limiting structure of glasses nose pad, the both ends of the nose pad support are provided with the limiting structure matched with the nose pad base, can effectively prevent the nose pad support from being axially separated, the structure is stable, and the stability is good.

[0005] To achieve the above-mentioned purpose, the utility model's solution is as follows: a connecting and limiting structure of glasses nose pad, including nose pad base and nose pad support, the nose pad base is fixed on the glasses frame, the nose pad support includes connecting part, circumferential positioning part and rotating shaft, the connecting part is used for connecting the nose pad body, the circumferential positioning part is located below the connecting part, the rotating shaft is located inside the circumferential positioning part, the rotating groove is axially set up on the nose pad base, the rotating shaft is rotatably matched in the rotating groove, the circumferential positioning part and the outer circumferential of the nose pad base are circumferentially matched, the both ends of the rotating shaft are provided with limiting part, and the two limiting parts are respectively axially abutted with the both ends of the nose pad base to limit the rotating shaft from being axially separated from the rotating groove.

[0006] Further, the rotating groove axially penetrates the both ends of the nose pad base, the limiting part is a limiting baffle, the two limiting baffles are respectively a first limiting baffle and a second limiting baffle, and the first limiting baffle and the second limiting baffle are respectively located on the outside of the nose pad base and axially abutted with the both ends of the nose pad base.

[0007] Further, the distance between the first limiting baffle and the second limiting baffle is greater than the length of the rotating groove.

[0008] Further, the middle part of the rotating shaft is provided with a third limiting baffle, and the middle part of the nose pad base is provided with a limiting groove matched with the third limiting baffle.

[0009] Further, the outer periphery of the nose pad base is provided with a plurality of positioning grooves or a plurality of positioning protrusions, and the inner side of the circumferential positioning part is provided with a plurality of positioning protrusions or a plurality of positioning grooves; when the rotating shaft drives the circumferential positioning part to rotate, the positioning protrusions are embedded in different positioning grooves, so that the nose pad body is positioned at different angles.

[0010] Further, the outer periphery of the nose pad base is provided with a plurality of positioning grooves or a plurality of positioning protrusions, and the inner side of the circumferential positioning part is provided with a plurality of positioning protrusions or a plurality of positioning grooves; when the rotating shaft drives the circumferential positioning part to rotate, the positioning protrusions are embedded in different positioning grooves, so that the nose pad body is positioned at different angles.

[0011] Further, the nose pad base is made of elastic material, and the outer periphery of the nose pad base is provided with a mounting port axially communicated with the rotating groove; the diameter of the rotating shaft is greater than the width of the mounting port in a natural state; the nose pad base is deformed to enable the rotating shaft to be radially embedded in the rotating groove from the mounting port.

[0012] Further, the circumferential positioning part and the rotating shaft are provided with a limiting plate, the cross section of the mounting port is in the shape of a sector, and the width of the mounting port gradually increases from the inner side to the outer side of the rotating groove; when the rotating shaft is embedded in the rotating groove, the limiting plate is located in the mounting port and is deflected in the mounting port.

[0013] Further, the circumferential positioning part and the rotating shaft are provided with a limiting plate, the cross section of the mounting port is in the shape of a sector, and the width of the mounting port gradually increases from the inner side to the outer side of the rotating groove; when the rotating shaft is embedded in the rotating groove, the limiting plate is located in the mounting port and is deflected in the mounting port.

[0014] Further, the limiting part is arranged between the circumferential positioning part and the limiting plate, the limiting part is arranged on the left and right sides of the limiting plate, or the limiting part is arranged on any one side of the limiting plate.

[0015] After the above scheme is adopted, the beneficial effects of the nose pad support are as follows:

[0016] The nose pad support is matched with the rotating groove on the nose pad base through the rotating shaft, the outer periphery of the rotating shaft is provided with a circumferential positioning part matched with the outer periphery of the nose pad base, the angle of the nose pad body is adjusted and positioned, and the rotating shaft can be radially limited in the rotating groove; more importantly, the two ends of the rotating shaft are provided with limiting parts axially matched with the two ends of the nose pad base, the two limiting parts can limit the rotating shaft from being axially out of the rotating groove, so that the rotating shaft can be firmly limited in the rotating groove, and the connection stability between the nose pad support and the nose pad base and the service life of the nose pad are improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structural schematic view of the whole assembled state of the utility model;

[0018] Figure 2 It is the structure schematic diagram of the whole decomposed state of the utility model;

[0019] Figure 3 It is the cooperation schematic diagram of the nose pad support and the nose pad base in the decomposed state of the utility model embodiment one;

[0020] Figure 4 It is the structure schematic diagram of the nose pad support of the utility model embodiment one;

[0021] Figure 5 It is the cooperation schematic diagram of the nose pad support and the nose pad base in the decomposed state of the utility model embodiment two;

[0022] Figure 6 It is the structure schematic diagram of the nose pad support of the utility model embodiment two;

[0023] Figure 7 It is the structure schematic diagram of the nose pad support of the utility model embodiment three;

[0024] Figure 8 It is the schematic diagram of the nose pad support in the central position of the utility model;

[0025] Figure 9 It is the schematic diagram of the nose pad support after deflection to the left side of the utility model;

[0026] Figure 10 It is the schematic diagram of the nose pad support after deflection to the right side of the utility model.

[0027] Label explanation:

[0028] 1, nose pad base;11, rotating groove;12, limiting groove;13, installation port;14, positioning recess;2, nose pad support;21, connecting part;211, clamping strip;22, circumferential positioning part;221, positioning protrusion;23, rotating shaft;24, first limiting baffle;25, second limiting baffle;26, third limiting baffle;27, limiting plate;3, glasses frame;4, nose pad body. Specific implementation

[0029] The utility model is explained in detail below in combination with the drawings and specific embodiments.

[0030] In the application file of the utility model, the term "axial direction" is the axis direction of rotating shaft 23, that is, the length direction of rotating shaft, the term "radial direction" is the vertical direction of "axial direction", and the term "circumferential direction" refers to the direction of clockwise or counterclockwise around the central axis of rotating shaft itself.

[0031] For example, Figures 1-10As shown, the utility model provides a kind of connecting limiting structure of spectacle nose pad, including nose pad base 1 and nose pad support 2, the nose pad base 1 is fixed on spectacle frame 3, the fixed mode of nose pad base 1 and spectacle frame 3 can be detachable fixed, for example, it is fixed using the mode of inserting buckle, buckle, it can also be integral fixed, such as welding, injection molding etc.

[0032] The nose pad support 2 includes a connecting portion 21, a circumferential positioning portion 22 and a rotating shaft 23, the connecting portion 21 is used to connect the nose pad body 4, and the connecting portion 21 is generally detachably connected with the nose pad body 4. Specifically, an axially extending clamping strip 211 is arranged on both sides of the connecting portion 21, and the nose pad body 4 is clamped and connected on the clamping strip 211.

[0033] The circumferential positioning portion 22 is located below the connecting portion 21, and the rotating shaft 23 is located inside the circumferential positioning portion 22. An axial rotating groove 11 is formed in the nose pad base 1, and the rotating shaft 23 is rotatably fitted in the rotating groove 11. The rotating shaft 23 rotates in the rotating groove 11 to drive the nose pad body 4 to rotate, thereby achieving angle adjustment of the nose pad body 4. The circumferential positioning portion 22 is circumferentially positioned with the outer periphery of the nose pad base 1, so as to position the nose pad body 4 at an angle position. At the same time, the cooperation of the rotating shaft 23 and the rotating groove 11 and the cooperation of the circumferential positioning portion 22 and the outer periphery of the nose pad base 1 can also radially limit the rotating shaft 23 in the rotating groove 11, so as to prevent the rotating shaft 23 from being radially pulled out. Moreover, the two ends of the rotating shaft 23 are respectively provided with limiting portions, which are respectively axially abutted with the two ends of the nose pad base 1, so as to limit the rotating shaft 23 from being axially pulled out of the rotating groove 11, thereby firmly limiting the rotating shaft 23 in the rotating groove 11, and improving the overall stability and service life of the nose pad connecting structure.

[0034] With particular reference to Figure 3 and Figure 4 In the first embodiment, the rotating groove 11 axially penetrates both ends of the nose pad base 1, the length of the rotating shaft 23 is greater than the length of the rotating groove 11, the two ends of the rotating shaft 23 axially protrude from the rotating groove 11, and the limiting portion is a limiting baffle. The two limiting baffles are respectively a first limiting baffle 24 and a second limiting baffle 25. The first limiting baffle 24 and the second limiting baffle 25 are respectively located on the outer side of the nose pad base 1 and are respectively axially abutted with the two ends of the nose pad base 1. Through the abutment of the two limiting baffles with the nose pad base 1, the rotating shaft 23 cannot be axially pulled out of the rotating groove 11.

[0035] Preferably, the distance between the first limiting baffle 24 and the second limiting baffle 25 is slightly greater than the length of the rotating groove 11, that is, the rotating shaft 23 can be slightly axially moved, so as to realize the axial fine adjustment of the nose pad body 4, and can be adapted to different heights of the nose bridge.

[0036] AsFigures 5-6 As shown in the embodiment two, in addition to the first limiting baffle 24 and the second limiting baffle 25, the middle part of the rotating shaft 23 is provided with a third limiting baffle 26, and the middle part of the nose pad base 1 is provided with a limiting groove 12 matched with the third limiting baffle 26, when the rotating shaft 23 is installed into the rotating groove 11, the third limiting baffle 26 is embedded into the limiting groove 12, and the matching of the third limiting baffle 26 and the limiting groove 12 can strengthen the axial limiting of the rotating shaft 23, and further prevent the rotating shaft 23 from being axially out of the rotating groove 11.

[0037] As shown in the embodiment two, in addition to the first limiting baffle 24 and the second limiting baffle 25, the middle part of the rotating shaft 23 is provided with a third limiting baffle 26, and the middle part of the nose pad base 1 is provided with a limiting groove 12 matched with the third limiting baffle 26, when the rotating shaft 23 is installed into the rotating groove 11, the third limiting baffle 26 is embedded into the limiting groove 12, and the matching of the third limiting baffle 26 and the limiting groove 12 can strengthen the axial limiting of the rotating shaft 23, and further prevent the rotating shaft 23 from being axially out of the rotating groove 11. Figure 7 As shown in the embodiment three, the third limiting baffle 26 can be arranged only in the middle part of the rotating shaft 23, and no limiting baffle is arranged at the two ends of the rotating shaft 23, and the middle part of the nose pad base 1 is also provided with the limiting groove 12 matched with the third limiting baffle 26, and the third limiting baffle 26 arranged only can also limit the rotating shaft 23.

[0038] As shown in the embodiment three, the third limiting baffle 26 can be arranged only in the middle part of the rotating shaft 23, and no limiting baffle is arranged at the two ends of the rotating shaft 23, and the middle part of the nose pad base 1 is also provided with the limiting groove 12 matched with the third limiting baffle 26, and the third limiting baffle 26 arranged only can also limit the rotating shaft 23. Figure 3 As shown in the embodiment three, the third limiting baffle 26 can be arranged only in the middle part of the rotating shaft 23, and no limiting baffle is arranged at the two ends of the rotating shaft 23, and the middle part of the nose pad base 1 is also provided with the limiting groove 12 matched with the third limiting baffle 26, and the third limiting baffle 26 arranged only can also limit the rotating shaft 23.

[0039] As shown in the embodiment three, the third limiting baffle 26 can be arranged only in the middle part of the rotating shaft 23, and no limiting baffle is arranged at the two ends of the rotating shaft 23, and the middle part of the nose pad base 1 is also provided with the limiting groove 12 matched with the third limiting baffle 26, and the third limiting baffle 26 arranged only can also limit the rotating shaft 23. Figure 3 As shown in the embodiment three, the third limiting baffle 26 can be arranged only in the middle part of the rotating shaft 23, and no limiting baffle is arranged at the two ends of the rotating shaft 23, and the middle part of the nose pad base 1 is also provided with the limiting groove 12 matched with the third limiting baffle 26, and the third limiting baffle 26 arranged only can also limit the rotating shaft 23. Figures 8-10 As shown in the embodiment three, the third limiting baffle 26 can be arranged only in the middle part of the rotating shaft 23, and no limiting baffle is arranged at the two ends of the rotating shaft 23, and the middle part of the nose pad base 1 is also provided with the limiting groove 12 matched with the third limiting baffle 26, and the third limiting baffle 26 arranged only can also limit the rotating shaft 23.

[0040] Further, the outer circumferential surface of the nose pad base 1 is in the shape of a circular arc, and the inner side surface of the circumferential positioning portion 22 is a circular arc surface matched with the outer circumferential surface of the nose pad base 1. The advantage of the circular arc design is that the circumferential positioning portion 22 can rotate smoothly relative to the nose pad base 1, so that the positioning protrusions 221 can be better embedded into the positioning grooves 14, and more accurate positioning is achieved. Moreover, the circumferential positioning portion 22 can also be made of elastic material, and the circumferential positioning portion 22 and the nose pad base 1 are in elastic tight fit. This not only makes the circumferential positioning more stable, but also limits the rotation of the rotation shaft 23 in the radial direction, further preventing the rotation shaft 23 from being pulled out of the rotation groove 11 in the radial direction.

[0041] Further, a vertical limiting plate 27 is arranged between the circumferential positioning portion 22 and the rotation shaft 23. The cross section of the mounting opening 13 is in the shape of a sector, and the width of the mounting opening 13 gradually increases from the inner side to the outer side of the rotation groove 11. When the rotation shaft 23 is embedded into the rotation groove 11, the limiting plate 27 is located in the mounting opening 13 and is deflected in the mounting opening 13. The mounting opening 13 can limit the deflection angle of the limiting plate 27, thereby limiting the deflection angle of the nose pad body 4, and preventing excessive deflection from colliding with the lens of the spectacle frame 3.

[0042] Specifically, two positioning protrusions 221 are arranged on the left and right sides of the limiting plate 27, respectively, and four positioning grooves 14 are arranged on the left and right sides of the outer circumferential surface of the nose pad base 1, respectively, to achieve adjustment of multiple gears. Figures 8-10 As shown, the limiting plate 27 can be located at the central position, or can be deflected to the left by two gears or to the right by two gears. Moreover, the number of the positioning protrusions 221 and the positioning grooves 14 can be flexibly set, and can be selected according to actual needs to meet different adjustment requirements. When the number is increased and the arrangement is more dense, more adjustable gears can be obtained, thereby improving the adjustment accuracy.

[0043] Referring to Figure 4 , the limiting portion is arranged between the circumferential positioning portion 22 and the limiting plate 27. The limiting portion can be arranged on the left and right sides of the limiting plate 27, or can be arranged on only one side of the limiting plate 27. In the first and second embodiments, the first limiting baffle 24 and the second limiting baffle 25 are respectively arranged on the left and right sides of the limiting plate 27, which can save materials and has stable structure.

[0044] The above description is only the preferred embodiment of the present application, and is not a limitation on the design of the present application. Any equivalent changes made on the basis of the key design of the present application shall fall within the protection scope of the present application.

Claims

1. A connecting limiting structure of an eyeglasses nose pad, characterized in that: The nose pad base is fixed on the glasses frame, and the nose pad support includes a connecting part, a circumferential positioning part and a rotating shaft.

2. The connecting and limiting structure of the eyeglasses nose pad as claimed in claim 1, wherein: The rotating groove axially penetrates both ends of the nose pad base, and the limiting part is a limiting baffle.

3. The connecting and limiting structure of the eyeglasses nose pad as claimed in claim 2, wherein: The first limiting baffle and the second limiting baffle are respectively located on the outer side of the nose pad base and axially abut against both ends of the nose pad base.

4. The connecting and limiting structure of eyeglasses nose pads as claimed in claim 2 or 3, wherein: The distance between the first limiting baffle and the second limiting baffle is greater than the length of the rotating groove.

5. The connecting and limiting structure of the eyeglasses nose pad as claimed in claim 1, wherein: The middle part of the rotating shaft is provided with a third limiting baffle, and the middle part of the nose pad base is provided with a limiting groove matched with the third limiting baffle.

6. The connecting and limiting structure of the eyeglasses nose pad as claimed in claim 5, wherein: The outer periphery of the nose pad base is provided with a plurality of positioning grooves or a plurality of positioning protrusions, and the inner side of the circumferential positioning part is provided with a plurality of positioning protrusions or a plurality of positioning grooves.

7. A connecting and limiting structure for the nose pads of eyeglasses according to any one of claims 5 or 6, characterized in that: The outer periphery of the nose pad base is provided with a plurality of positioning grooves or a plurality of positioning protrusions, and the inner side of the circumferential positioning part is provided with a plurality of positioning protrusions or a plurality of positioning grooves.

8. The connecting and limiting structure of the eyeglasses nose pad as claimed in claim 7, wherein: The outer periphery of the nose pad base is provided with a plurality of positioning grooves or a plurality of positioning protrusions, and the inner side of the circumferential positioning part is provided with a plurality of positioning protrusions or a plurality of positioning grooves.

9. The connecting and limiting structure of the eyeglasses nose pad as claimed in claim 8, wherein: The outer periphery of the nose pad base is provided with a plurality of positioning grooves or a plurality of positioning protrusions, and the inner side of the circumferential positioning part is provided with a plurality of positioning protrusions or a plurality of positioning grooves.

10. The connecting and limiting structure of the eyeglasses nose pad as claimed in claim 8, wherein: The outer periphery of the nose pad base is provided with a plurality of positioning grooves or a plurality of positioning protrusions, and the inner side of the circumferential positioning part is provided with a plurality of positioning protrusions or a plurality of positioning grooves. The outer periphery of the nose pad base is provided with a plurality of positioning grooves or a plurality of positioning protrusions, and the inner side of the circumferential positioning part is provided with a plurality of positioning protrusions or a plurality of positioning grooves. The outer periphery of the nose pad base is provided with a plurality of positioning grooves or a plurality of positioning protrusions, and the inner side of the circumferential positioning part is provided with a plurality of positioning protrusions or a plurality of positioning grooves. 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