CN112445009A

CN112445009A - Nose pad for glasses frame and mounting method thereof

Info

Publication number: CN112445009A
Application number: CN202011398025.3A
Authority: CN
Inventors: 林俊宏
Original assignee: CHONGYUAN (XIAMEN) GLASSES INDUSTRY CO LTD
Current assignee: CHONGYUAN (XIAMEN) GLASSES INDUSTRY CO LTD
Priority date: 2020-12-04
Filing date: 2020-12-04
Publication date: 2021-03-05
Anticipated expiration: 2040-12-04
Also published as: CN112445009B

Abstract

The invention discloses a nose pad for eyeglass frames and an installation method thereof, belonging to the technical field of nose pads. The technical solution includes an oval-shaped installation frame and an oval-shaped nose pad inserted on its free end surface; the oval-shaped installation frame The rear end surface of the spectacles is rotatably connected with a rotating lug, and the free end surface of the rotating lug is fixedly provided with a T-shaped mounting rod that matches the mounting block on the spectacle frame, and one end of the mounting block is provided with a rectangle for installing the T-shaped mounting rod. Slots, first racks are symmetrically arranged in the depths of the two side walls of the rectangular slot, and rotating plates are connected to the end faces on both sides of the T-shaped mounting rod, and the rear of the rotating plate is provided with a number of rectangular sockets. The second rack meshing with the inner wall of the groove. The invention not only has good antibacterial performance and anti-aging performance, but also effectively improves the quality and quality of the nose pad, and can realize the quick installation, disassembly and replacement of the nose pad, which is very convenient and fast.

Description

Nose pad for glasses frame and mounting method thereof

Technical Field

The invention belongs to the technical field of nose pads, and particularly relates to a nose pad for a glasses frame and an installation method thereof.

Background

The glasses are common articles in life, and are often worn in work and sports. A conventional spectacle frame includes two opposite lens frame portions for placing lenses, a nose pad portion, and arms (or legs) respectively disposed at edges of the lens frame portions, and is generally integrally designed in the form of a pair of spectacles for myopia or sunglasses, in which the arms (or legs) are fixed at edges of the lens frame by screws or other means, and the nose pad is also fixed at the inner side of the lens frame by screws. Rimless eyewear typically has nose pads, arms (or temples) attached directly to the lens.

Nowadays, nose pads for spectacles are generally constituted by a wing made of soft plastic material (usually PVC, rubber or silicone) having, at the end opposite to the one intended to rest on the nose, a stem projecting from the wing, so as to be inserted with interference into a substantially eyelet-like metal hook.

However, the existing nose pad has many defects to be improved, such as relatively poor anti-aging performance, sterilization performance and mechanical performance; and the operation process of installation, disassembly or replacement is relatively troublesome and takes a long time.

Disclosure of Invention

Aiming at the defects in the prior art, the first purpose of the invention is to provide the nose pad for the glasses frame, which has the advantages of good ageing resistance, sterilization performance and mechanical performance, and convenient installation and disassembly.

In order to achieve the purpose, the invention provides the following technical scheme:

a nose pad for a spectacle frame comprises an oval mounting frame and an oval nose pad inserted on the free end face of the oval mounting frame; the rear end face of the oval mounting frame is rotatably connected with a rotating lug, a T-shaped mounting rod matched with a mounting block on the glasses frame is fixedly arranged on the free end face of the rotating lug, a rectangular slot for mounting the T-shaped mounting rod is formed in one end face of the mounting block, and first racks are symmetrically arranged in the depths of two side walls of the rectangular slot; the middle parts of the end surfaces of the two sides of the T-shaped mounting rod are rotatably connected with rotating plates, the rear parts of the outer end surfaces of the rotating plates are provided with a plurality of second racks meshed with the depths of the inner walls of the rectangular slots, the rear parts of the T-shaped mounting rod and the rotating plates are connected through a plurality of springs, the front end part of the top of the rotating plate is fixedly provided with a push plate, and the opposite surfaces of the two push plates are provided with anti-skidding racks; the oval nose pad is of an arc-shaped surface structure protruding outwards; the oval mounting frame and the oval nose pad are both made of modified PVC materials.

By adopting the technical scheme: when the T-shaped mounting rod is mounted, the push plate at the top of the rotating plate is pushed outwards by fingers at the same time, so that the rotating plate approaches to the T-shaped mounting rod, and meanwhile, the rotating plate applies acting force to the spring when rotating, so that the spring is compressed; when the rotating plate contracts to a proper degree, the T-shaped rotating rod is inserted into the rectangular slot in the mounting block, then the external force is removed, and under the action of the restoring force of the spring, the rear end part of the rotating plate expands outwards, so that a second rack at the rear end part of the rotating plate is meshed with first racks symmetrically arranged at the depths of two side walls of the rectangular slot, and the mounting of the rotating lug is completed; then, the rotary lug is rotatably installed on the rear end face of the oval installation frame through the rotary shaft and the shaft sleeve, and the oval nose pad is inserted into the oval installation frame, so that the installation of the nose pad of the glasses frame is completed.

To sum up, through rotating the auricle, can make the person of wearing can adjust the inclination of nose pad when wearing in real time, guarantee the travelling comfort of wearing. Moreover, the T-shaped mounting rod, the rotating plate, the spring, the pushing plate, the first rack and the second rack are matched for use, so that the nose pad can be conveniently and rapidly mounted and dismounted. In addition, the traditional PVC is subjected to chemical modification, so that the antibacterial property of the PVC is effectively improved, the service life of the PVC is prolonged, the related mechanical property of the PVC is effectively improved, and the quality of the PVC is improved.

The invention is further configured to: the edge of the outer end face of the oval mounting frame is provided with a semi-oval mounting frame, the middle of the mounting frame is provided with a rectangular mounting opening, and the inner wall of the rectangular mounting opening is glued and connected with a rubber pad.

By adopting the technical scheme: the setting of installation frame not only can be convenient for to the quick installation and the dismantlement of oval nose pad, the oval nose pad of quick replacement also is convenient for simultaneously. And the rubber pad is used, so that the stability of the elliptical nose pad after installation can be improved while the outer edge of the elliptical nose pad is effectively protected.

The invention is further configured to: the bottom of oval nose pad is seted up with rectangle installing port matched with semiellipse shape picture peg, just the thickness value of semiellipse shape picture peg equals the width value of rectangle installing port.

By adopting the technical scheme: the design of the semi-elliptical inserting plate can facilitate the rapid installation, disassembly and replacement of the elliptical nose pad without other tools.

The invention is further configured to: the outer end face of the oval nose pad is provided with a spherical bulge.

By adopting the technical scheme: the arrangement of the spherical bulges can improve the air permeability of the oval nose pad to a certain degree, and improve the comfort level of a wearer during wearing.

The invention is further configured to: the modified PVC is prepared from the following raw materials in parts by weight: 120-130 parts of PVC, 3.2-4.5 parts of nano titanium dioxide, 5.2-5.8 parts of modified sericite powder, 2.8-3.5 parts of carbon nano tubes, 2.2-2.6 parts of antibacterial agent, 1.5-2.5 parts of 2-hydroxy-4-methoxy benzophenone and 5.5-7.2 parts of nano calcium carbonate.

By adopting the technical scheme: the antibacterial performance of the produced nose pad can be effectively improved and the anti-aging performance of the nose pad can be effectively improved by using the modified sericite powder, the antibacterial agent and the nano titanium dioxide in a matching manner. Moreover, by the synergistic cooperation between the modified sericite powder and the carbon nano tubes, the tensile strength, the bending strength and the impact strength of the prepared nose pad can be effectively improved, and the quality of the nose pad is improved. In addition, the modified sericite powder, the nano titanium dioxide and the 2-hydroxy-4-methoxybenzophenone are cooperatively matched, so that the nose pad has better ageing resistance, and the service life of the nose pad is effectively prolonged.

The invention is further configured to: the preparation method of the modified sericite powder comprises the following steps:

accurately weighing a proper amount of nano sericite powder, soaking the nano sericite powder in an antibacterial agent with the temperature of 70-80 ℃ and the mass of 8-12 times of that of the nano sericite powder for 20-30 hours, taking out the nano sericite powder after soaking, ultrasonically mixing the nano sericite powder with gamma- (2, 3-epoxypropoxy) propyl trimethoxy silane with the mass of 12-20% of that of the nano sericite powder for 10-15 minutes, raising the reaction temperature to 65-75 ℃, stirring at the constant temperature for reaction for 20-25 hours, adding dichloroethane with the mass of 3-5 times of polyethyleneimine into a reaction system after the reaction is finished, and reacting for 10-15 hours at the temperature of 40-50 ℃; and taking out the nano sericite powder after the reaction is finished, and washing the nano sericite powder with deionized water to obtain the modified sericite powder.

By adopting the technical scheme: the invention takes the antibacterial agent and gamma- (2, 3-epoxypropoxy) propyl trimethoxy silane as raw materials to carry out chemical modification treatment on the nano sericite powder, wherein the gamma- (2, 3-epoxypropoxy) propyl trimethoxy silane not only can react with silicon-oxygen bonds in the nano sericite powder, but also can be bonded with organic functional groups in the antibacterial agent, under the action of a bridge of the gamma- (2, 3-epoxypropoxy) propyl trimethoxy silane, the antibacterial agent is finally grafted on the surface of the nano sericite powder in a chemical bond mode, so that the nano sericite powder not only has strong ultraviolet ray shielding capability, but also has good mechanical property and antibacterial capability, and the antibacterial performance of the produced nose pad is effectively improved by using the modified nano sericite powder, the anti-aging performance, tensile strength, bending strength and impact strength of the composite material are improved more effectively.

The invention is further configured to: the antibacterial agent is prepared by mixing 50-60 wt% of 4-pyrrolidine acylaniline and 40-50 wt% of dimethylol hydantoin.

By adopting the technical scheme: the antibacterial agent can generate a synergistic effect with the nano titanium dioxide and the modified sericite powder, so that the antibacterial performance of the nose pad is effectively improved, the service life of the nose pad is prolonged, and the sanitation of the nose pad is also ensured.

Another object of the present invention is to provide a method for mounting a nose pad for an eyeglass frame, comprising the steps of:

s1, when the installation is carried out, an installer pushes the push plate at the top of the rotating plate outwards simultaneously by fingers to enable the rotating plate to approach towards the direction close to the T-shaped installation rod, and the rotating plate applies acting force to the spring when rotating to enable the spring to be compressed; when the rotating plate contracts to a proper degree, the T-shaped rotating rod is inserted into the rectangular slot in the mounting block, then the external force is removed, and under the action of the restoring force of the spring, the rear end part of the rotating plate expands outwards, so that a second rack at the rear end part of the rotating plate is meshed with first racks symmetrically arranged at the depths of two side walls of the rectangular slot, and the mounting of the rotating lug is completed;

s2, the rotary lug is rotatably mounted on the rear end face of the oval mounting frame through the rotary shaft and the shaft sleeve, and finally the oval nose pad is inserted into the oval mounting frame, so that the mounting of the nose pad of the glasses frame is completed.

By adopting the technical scheme: during the use, through rotating the auricle, can make the person of wearing can adjust nose pad inclination in real time when wearing, guarantee the travelling comfort of wearing. Moreover, the T-shaped mounting rod, the rotating plate, the spring, the pushing plate, the first rack and the second rack are matched for use, so that the nose pad can be conveniently and rapidly mounted and dismounted. Secondly, the nose pad is convenient to install and detach due to the oval installation frame. When the T-shaped mounting rod needs to be disassembled, the reverse operation of the steps can be completed, and the T-shaped mounting rod is very convenient and quick.

In summary, the invention has the following advantages:

1. according to the nose pad, the T-shaped mounting rod, the rotating plate, the spring, the push plate, the first rack and the second rack are matched for use, so that the nose pad can be conveniently and rapidly mounted and dismounted;

2. the modified sericite powder is used as the raw material of the modified PVC material, wherein the modified sericite powder is matched with the antibacterial agent and the nano titanium dioxide for use, so that the antibacterial performance of the produced nose pad can be effectively improved, and the anti-aging performance of the nose pad is effectively improved; moreover, the synergistic cooperation between the modified sericite powder and the carbon nano tube can also effectively improve the tensile strength, the bending strength and the impact strength of the prepared nose pad so as to improve the quality of the nose pad;

3. the modified sericite powder, the nano titanium dioxide and the 2-hydroxy-4-methoxybenzophenone are cooperatively matched, so that the nose pad has better ageing resistance, and the service life of the nose pad is effectively prolonged.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is an enlarged schematic view at A in FIG. 1;

FIG. 3 is a schematic view of the elliptical nose pad of the present invention;

FIG. 4 is a schematic view of a portion of the mounting block structure of the present invention;

fig. 5 is a partial longitudinal sectional view showing a state where the mounting block is engaged with the rotating plate according to the present invention.

Description of reference numerals: 1. an oval mounting frame; 2. an elliptical nose pad; 3. rotating the lug; 4. mounting blocks; 5. a T-shaped mounting rod; 6. a rectangular slot; 7. a first rack; 8. rotating the plate; 9. a spring; 10. pushing the plate; 11. a semi-elliptical plug board; 12. a spherical bulge; 13. a second rack.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example 1

A nose pad for a spectacle frame is disclosed, as shown in figures 1-5, comprising an oval mounting frame 1 and an oval nose pad 2 inserted on the free end surface of the oval mounting frame, wherein the oval nose pad 2 is of an outwardly convex cambered surface structure, the rear end surface of the oval mounting frame 1 is rotatably connected with a rotary lug 3, the free end surface of the rotary lug 3 is fixedly provided with a T-shaped mounting rod 5 matched with a mounting block 4 on the spectacle frame, one end surface of the mounting block 4 is provided with a rectangular slot 6 for mounting the T-shaped mounting rod 5, symmetrical depths of two side walls of the rectangular slot 6 are provided with first racks 7, the middle parts of two side end surfaces of the T-shaped mounting rod 5 are rotatably connected with a rotary plate 8, the rear part of the outer end surface of the rotary plate 8 is provided with a plurality of second racks 13 meshed with the depths of the inner wall of the rectangular slot 6, the rear parts of the T-shaped mounting rod 5 and the rotary plate 8 are connected through a plurality of springs 9, the opposite surfaces of the two push plates 10 are provided with anti-skid racks.

Further, the edge of the outer end face of the oval mounting frame 1 is provided with a semi-oval mounting frame, a rectangular mounting opening is formed in the middle of the mounting frame, a rubber pad is glued to the inner wall of the rectangular mounting opening, and the rubber pad can effectively protect the outer edge of the oval nose pad 2 and improve the stability of the oval nose pad 2 after being mounted.

In order to facilitate quick installation, disassembly and replacement of the elliptical nose pad 2, the bottom of the elliptical nose pad 2 in the embodiment is provided with a semi-elliptical inserting plate 11 matched with the rectangular installation opening, and the thickness value of the semi-elliptical inserting plate 11 is equal to the width value of the rectangular installation opening.

The outer end face of the oval nose pad 2 is provided with the spherical protrusions 12, so that the air permeability of the oval nose pad 2 can be improved to a certain degree through the spherical protrusions 12, and the comfort level of a wearer in wearing is improved.

The oval mounting frame 1 and the oval nose pad 2 are both made of modified PVC materials.

The modified PVC material comprises the following raw materials in parts by weight: 120 parts of PVC, 3.2 parts of nano titanium dioxide, 5.2 parts of modified sericite powder, 2.8 parts of carbon nano tube, 2.2 parts of antibacterial agent, 1.5 parts of 2-hydroxy-4-methoxybenzophenone and 5.5 parts of nano calcium carbonate.

The specific preparation method of the modified sericite powder comprises the following steps:

accurately weighing a proper amount of nano sericite powder, soaking the nano sericite powder in an antibacterial agent with the temperature of 70 ℃ and the mass of 8 times of that of the nano sericite powder for 20 hours, taking out the nano sericite powder after soaking, ultrasonically mixing the nano sericite powder with gamma- (2, 3-epoxypropoxy) propyl trimethoxy silane with the mass of 12% of that of the nano sericite powder for 10 minutes, raising the reaction temperature to 65 ℃, stirring and reacting at the constant temperature for 20 hours, adding dichloroethane with the mass of 3 times of polyethyleneimine into a reaction system after the reaction is finished, and reacting at the temperature of 40 ℃ for 10 hours; and taking out the nano sericite powder after the reaction is finished, and washing the nano sericite powder with deionized water to obtain the modified sericite powder. Wherein the antibacterial agent is prepared by mixing 4-pyrrolidine acylaniline and dimethylol hydantoin in equal proportion.

A method of mounting a nose pad for an eyeglass frame, comprising the steps of:

s1, during installation, an installer pushes the push plate 10 on the top of the rotating plate 8 outwards simultaneously by fingers to enable the rotating plate 8 to approach towards the direction close to the T-shaped installation rod 5, and when the rotating plate 8 rotates, acting force is applied to the spring 9 to enable the spring 9 to be compressed; when the rotating plate 8 contracts to a proper degree, the T-shaped rotating rod is inserted into the rectangular slot 6 in the mounting block 4, then the external force is removed, and under the action of the restoring force of the spring 9, the rear end part of the rotating plate 8 expands outwards, so that the second rack 13 at the rear end part of the rotating plate 8 is meshed with the first racks 7 symmetrically arranged at the depths of the two side walls of the rectangular slot 6, and the mounting of the rotating lug 3 is completed;

s2, the rotary lug 3 is rotatably installed on the rear end face of the oval installation frame 1 through the rotary shaft and the shaft sleeve, and finally the oval nose pad 2 is inserted into the oval installation frame 1, so that the installation of the nose pad of the glasses frame is completed.

Example 2

A nose pad for a glasses frame, which is different from example 1 in the composition of modified PVC and the preparation method of modified sericite is different, specifically as follows:

the modified PVC comprises the following raw materials in parts by weight: 125 parts of PVC, 4.0 parts of nano titanium dioxide, 5.5 parts of modified sericite powder, 3.2 parts of carbon nano tube, 2.4 parts of antibacterial agent, 2.0 parts of 2-hydroxy-4-methoxybenzophenone and 6.5 parts of nano calcium carbonate.

The preparation method of the modified sericite powder comprises the following steps:

accurately weighing a proper amount of nano sericite powder, soaking the nano sericite powder in an antibacterial agent with the temperature of 75 ℃ and the mass of 10 times of that of the nano sericite powder for 25 hours, taking out the nano sericite powder after soaking, ultrasonically mixing the nano sericite powder with gamma- (2, 3-epoxypropoxy) propyl trimethoxy silane with the mass of 15% of that of the nano sericite powder for 12 minutes, raising the reaction temperature to 70 ℃, stirring and reacting at the constant temperature for 22 hours, adding dichloroethane with the mass of 4 times of polyethyleneimine into a reaction system after the reaction is finished, and reacting at the temperature of 45 ℃ for 12 hours; and taking out the nano sericite powder after the reaction is finished, and washing the nano sericite powder with deionized water to obtain the modified sericite powder.

Example 3

A nose pad for a glasses frame, which is different from example 1 in the composition of modified PVC and the preparation method of modified sericite is different; the method comprises the following specific steps:

the modified PVC comprises the following raw materials in parts by weight: 130 parts of PVC, 4.5 parts of nano titanium dioxide, 5.8 parts of modified sericite powder, 3.5 parts of carbon nano tubes, 2.6 parts of antibacterial agent, 2.5 parts of 2-hydroxy-4-methoxybenzophenone and 7.2 parts of nano calcium carbonate.

accurately weighing a proper amount of nano sericite powder, soaking the nano sericite powder in an antibacterial agent with the temperature of 80 ℃ and the mass of 12 times of that of the nano sericite powder for 30 hours, taking out the nano sericite powder after soaking, ultrasonically mixing the nano sericite powder with gamma- (2, 3-epoxypropoxy) propyl trimethoxy silane with the mass of 20% of that of the nano sericite powder for 15 minutes, raising the reaction temperature to 75 ℃, stirring and reacting at the constant temperature for 25 hours, adding dichloroethane with the mass of 5 times of polyethyleneimine into a reaction system after the reaction is finished, and reacting at the temperature of 50 ℃ for 15 hours; and taking out the nano sericite powder after the reaction is finished, and washing the nano sericite powder with deionized water to obtain the modified sericite powder.

Performance testing

Comparative example: a nasal cushion product provided by a nasal cushion manufacturing company of Dongguan, Guangdong province;

example (b): nasal cushion products prepared according to the invention in example 1, example 2 and example 3;

the following performance tests were performed on the nose pad products provided in comparative examples and examples 1-3, respectively:

1. and (3) mechanical property detection: the mechanical properties of the nose pad provided by the invention and the nose pad provided by the comparative example are tested according to the ASTM D638-2014 standard;

2. the antibacterial performance of the nose pad provided by the invention and the nose pad provided by the comparative example are detected by using an antibacterial ring method and a QB/T2591 and 2003 'antibacterial plastic-antibacterial performance evaluation and test method';

the test data obtained from the tests are recorded in the following table:

as can be seen from the relevant data in the table above, the nose pad provided by the technical scheme provided by the invention is obviously superior to the nose pad product provided by the comparative example in the aspects of anti-aging performance, bactericidal performance, mechanical performance and the like. Therefore, the nose pad prepared by the invention has wider market prospect and is more suitable for popularization.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the design concept of the present invention should be included in the scope of the present invention.

Claims

1. A nose pad for a spectacle frame, comprising an oval mounting frame (1) and an oval nose pad (2) plugged into its free end face, characterized in that: the oval mounting frame (1) has a The rear end face is rotatably connected with a rotating lug (3), and the free end face of the rotating lug (3) is fixedly provided with a T-shaped mounting rod (5) matched with the mounting block (4) on the spectacle frame, and the mounting block One end surface of (4) is provided with a rectangular slot (6) for installing the T-shaped mounting rod (5), and a first rack (7) is symmetrically arranged in the depths of the two side walls of the rectangular slot (6); A turning plate (8) is rotatably connected to the middle of the end faces on both sides of the T-shaped mounting rod (5). The meshed second rack (13), and the T-shaped mounting rod (5) and the rear of the turning plate (8) are connected by a number of springs (9), and the front end of the top of the turning plate (8) is fixed A push plate (10) is provided, and the opposite surfaces of the two push plates (10) are provided with anti-skid gear racks; the oval nose pad (2) is an arc structure that protrudes outward; the oval mounting frame ( 1) and the oval nose pad (2) are made of modified PVC material.

2 . The nose pad for eyeglass frames according to claim 1 , wherein a semi-elliptical mounting frame is provided at the edge of the outer end surface of the oval mounting frame ( 1 ), and the mounting frame A rectangular installation opening is opened in the middle of the rectangular installation opening, and a rubber pad is glued on the inner wall of the rectangular installation opening.

3. A nose pad for eyeglass frames according to claim 2, characterized in that: the bottom of the elliptical nose pad (2) is provided with a semi-elliptical insert (11) matched with a rectangular mounting opening. ), and the thickness value of the semi-elliptical plug-in board (11) is equal to the width value of the rectangular installation opening.

4 . The nose pad for eyeglass frames according to claim 1 , wherein the outer end surface of the oval nose pad ( 2 ) is provided with spherical protrusions ( 12 ). 5 .

5 . The nose pad for eyeglass frames according to claim 1 , wherein the modified PVC is composed of the following raw materials in parts by weight: 120-130 parts of PVC, 3.2-4.5 parts of nanometers. 6 . Titanium dioxide, 5.2-5.8 parts of modified sericite powder, 2.8-3.5 parts of carbon nanotubes, 2.2-2.6 parts of antibacterial agent, 1.5-2.5 parts of 2-hydroxy-4-methoxybenzophenone and 5.5-7.2 parts of nanometer calcium carbonate.

6. a kind of nose pad for spectacle frame according to claim 5, is characterized in that, the preparation method of described modified sericite powder is:

Accurately weigh an appropriate amount of nano sericite powder, and place it in an antibacterial agent with a temperature of 70 to 80°C and a mass of 8 to 12 times that for 20 to 30 hours. After soaking, take out the nano sericite powder and mix it with The mass of γ-(2,3-glycidoxy)propyltrimethoxysilane is 12-20%, after ultrasonic mixing for 10-15min, the reaction temperature is raised to 65-75°C, and the temperature is kept constant. The reaction is stirred for 20 to 25 hours. After the reaction is completed, dichloroethane with a mass of 3 to 5 times the polyethyleneimine is added to the reaction system, and the reaction is carried out at a temperature of 40 to 50 ° C for 10 to 15 hours; Then the nano sericite powder is taken out, and the nano sericite powder is washed with deionized water to obtain the modified sericite powder.

7 . The nose pad for eyeglass frames according to claim 5 , wherein the antibacterial agent is composed of 50-60wt% 4-pyrrolidinoanilide and 40-50wt% dimethylol hydantoin. 8 . Prepared by mixing.

8. The method for installing a nose pad for a spectacle frame according to any one of claims 1 to 7, wherein the method comprises the following steps:

S1. During installation, the installer pushes the push plate (10) on the top of the rotating plate (8) outwards at the same time with his fingers, so that the rotating plate (8) approaches the direction of the T-shaped mounting rod (5), and the rotating plate (8) ) will exert a force on the spring (9) when it rotates, so that the spring (9) is compressed; when the turning plate (8) is retracted to an appropriate degree, insert the T-shaped turning rod into the rectangular slot ( 6) inside, and then remove the external force, under the action of the restoring force of the spring (9), the rear end of the turning plate (8) expands outward, so that the second rack (13) at the rear end of the turning plate (8) is connected to the The first racks (7) symmetrically arranged in the depths of the two side walls of the rectangular slot (6) are engaged to complete the installation of the rotating lugs (3);

S2. Then install the rotating lug (3) on the rear end of the oval mounting frame (1) through the shaft and the shaft sleeve, and finally insert the oval nose pad (2) into the oval mounting frame (1), That is, the installation of the nose pad of the eyeglass frame is completed.