Sunglasses with easy-to-change lenses

Abstract

The invention relates to the field of sunglasses and discloses a pair of sunglasses that is easy to replace lenses, which effectively solves the problem that fingerprints are easily attached to lenses during installation, causing the lenses to become dirty. The sunglasses include two frames, a first connecting plate is installed between the two frames, a second connecting plate is installed between the two frames, the second connecting plate is located below the first connecting plate, and glasses legs are hingedly connected on the sides of the two frames that are away from each other. A lens installation assembly is installed on the frames. The invention inserts the lens from the top of the installation groove into the interior of the installation groove, and pushes the clamping plate toward the pressing plate under the action of thrust, so that the lens passes between the two clamping plates, so that the cleaning rollers on the two clamping plates are respectively in close contact with the inner and outer sides of the lens, and when the lens is continuously moved, the cleaning roller continuously wipes the dirt on the lens, thereby ensuring that the lens is clean during the installation process, reducing the cleaning after installation, and improving the installation efficiency.

Description

Technical Field

[0001] The invention belongs to the field of sunglasses, in particular to a pair of sunglasses with lenses that are easy to replace. Background Art

[0002] According to the patent document with the authorization announcement number "CN208172401U" and the invention name "A kind of sunglasses with easy lens replacement", its description records: one end of the two support rods is connected at one point through a fixing block, and the other end of the two support rods is fixed on the arc-shaped frame, the fixing block is provided with a plug-in hole, and the bamboo-joint connecting rod is plugged into the plug-in hole; the bamboo-joint connecting rod is formed by plugging a plurality of bamboo joints, and the bamboo joint includes a front plug-in end, a middle arc-shaped section and a rear fixed end, the front end of the plug-in end is provided with at least one circle of wedge-shaped limiting steps, the fixed end is provided with a plug-in hole, and the inner wall of the plug-in hole is provided with a limiting groove matching the limiting step; the front end of the ear support is provided with a limiting step. The bamboo connecting rod of this structure is made of multiple bamboo joints. You can replace bamboo joints of different colors and styles according to your preference. When damaged, you can also replace one of the bamboo joints separately to avoid replacing the entire bamboo connecting rod. The connection method between the support foot and the bamboo connecting rod and between the bamboo connecting rod and the ear support is the same as the connection method between bamboo joints. In addition, the plug-in hole on the fixed block and the plug-in hole on the bamboo joint have the same size structure, and the upper limit step of the ear support and the limit step on the bamboo joint have the same size structure, which is convenient for matching and plugging with any bamboo joint. However, there are still the following defects:

[0003] When installing the lens, you need to hold the lens by hand to install it. As a result, the lens is easily stained with fingerprints during installation, which then causes the lens to become dirty. After installation, the lens needs to be cleaned, which is quite troublesome. Summary of the invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a pair of sunglasses with easy-to-replace lenses, which effectively solves the problem that the lenses are easily stained with fingerprints and become dirty when the lenses are installed.

[0005] To achieve the above object, the present invention provides the following technical solution: a pair of sunglasses that are easy to replace lenses, comprising two frames, a first connecting plate is installed between the two frames, a second connecting plate is installed between the two frames, the second connecting plate is located below the first connecting plate, the two frames are hinged with temples on one side away from each other, and a lens mounting assembly is installed on the frame;

[0006] The lens mounting assembly comprises a mounting groove provided inside the frame, the top of the mounting groove penetrates to the top of the frame, movable grooves are symmetrically provided on the front and back of the mounting groove, and sliding grooves are symmetrically provided on both sides of the movable groove;

[0007] A clamping plate is installed inside the movable groove, a side groove is opened on the side of the clamping plate close to the mounting groove, cleaning rollers are installed equidistantly inside the side groove, rotating shafts are symmetrically installed at both ends of the cleaning roller, the rotating shafts are rotatably connected to the inner wall of the side groove, first slide plates are symmetrically installed on both sides of the side groove, the first slide plate is slidably installed inside the slide groove, a pressure plate is provided on the side of the side groove away from the mounting groove, the pressure plate is installed inside the movable groove, second slide plates are symmetrically installed on both sides of the pressure plate, the second slide plate is slidably installed inside the slide groove, a first spring is installed between the second slide plate and the first slide plate, the two ends of the first spring are fixedly connected to the second slide plate and the first slide plate respectively, a lens fixing assembly is provided on the side of the pressure plate away from the mounting groove, the pressure plate is driven to move toward the clamping plate, so that the first spring is compressed to the limit state, and the lens is pressed and fixed under the action of the elastic force, thereby ensuring the stability of the glasses when used.

[0008] Preferably, the lens fixing assembly includes a fixing plate installed on the inner wall of the movable groove away from the mounting groove, support plates are symmetrically installed at both ends of the fixing plate, a cam is installed between the two support plates, rotating shafts are symmetrically installed at both ends of the cam, the rotating shafts are rotatably connected to the support plates, a baffle is installed on the end of the rotating shaft away from the cam, and the baffle is located on the side of the support plate away from the cam.

[0009] Preferably, a screw groove is opened inside the cam, and both ends of the screw groove respectively penetrate to the side where the two baffles are away from each other, and the internal thread of the screw groove is connected to a screw rod, and a first limit plate is installed at one end of the screw rod close to the eyeglass leg, and a second limit plate is installed at the other end of the screw rod away from the eyeglass leg.

[0010] Preferably, a cross bar is installed on the side of the second limit plate away from the screw rod, and the cross bar extends to the side where the two frames are close to each other. A connecting plate is installed on one end of the cross bar, and the connecting plate is located on the side where the two frames are close to each other. A disassembly and assembly drive assembly is installed between the two connecting plates.

[0011] Preferably, the disassembly and assembly driving assembly includes a first swivel seat symmetrically installed on one side of the two connecting plates close to each other, a swivel rod is rotatably installed on the first swivel seat, a second swivel seat is rotatably installed on the bottom end of the swivel rod, and the two second swivel seats are symmetrically installed on the top end of the middle plate. The middle plate is located above the first connecting plate, a bottom rod is installed at the bottom end of the middle plate, the bottom rod is movably installed inside the rod groove, the rod groove is opened inside the first connecting plate, and a first magnetic block is installed at the bottom end of the bottom rod.

[0012] Preferably, a longitudinal groove is provided on the second connecting plate, and the longitudinal groove is located below the first magnetic block. Sliding grooves are symmetrically provided on both sides of the longitudinal groove. A mounting ring is installed inside the longitudinal groove, and the outer wall of the mounting ring is in close contact with the inner wall of the longitudinal groove. Sliding blocks are symmetrically installed on both sides of the mounting ring. The sliding blocks are slidably installed inside the sliding groove. A second spring is installed at the bottom end of the sliding block, and the bottom end of the second spring is fixedly connected to the inner bottom wall of the sliding groove. A second magnetic block is installed inside the mounting ring, and the top and bottom ends of the second magnetic block have opposite magnetism.

[0013] Preferably, rotating rods are symmetrically installed at both ends of the second magnetic block, and the rotating rods are rotatably installed inside a rotating groove, and the rotating grooves are symmetrically opened on the two sliding blocks. One end of the rotating groove passes through the side of the sliding block away from the mounting ring, and the other end of the rotating groove passes through the inner side of the mounting ring. A gear is installed at one end of one of the rotating rods, and a rack is meshed and connected to one side of the gear, and the rack is installed on the side wall of the sliding groove.

[0014] Preferably, a bottom plate is provided below the second magnetic block, a connecting rod is installed at an equal angle on the top of the bottom plate, the top of the connecting rod is fixedly connected to the mounting ring, a pull rod is installed at the bottom end of the bottom plate, and the pull rod is located below the second connecting plate.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] (1) The present invention, when the lens is inserted from the top of the installation groove into the interior of the installation groove, pushes the clamping plate toward the pressure plate under the action of thrust, so that the lens passes between the two clamping plates, so that the cleaning rollers on the two clamping plates are respectively in close contact with the inner and outer sides of the lens. When the lens is continuously moved, the cleaning rollers continuously wipe the dirt on the lens, thereby ensuring that the lens is clean during the installation process, reducing the cleaning after installation, and improving the installation efficiency;

[0017] (2) After the lens is installed, the first magnetic block moves downward and pulls the connecting plate away from the frame through the rotating rod, so that the screw moves horizontally, so that the support plate rotates to the side of the long axis and contacts the pressure plate, thereby pushing the pressure plate toward the clamping plate, so that the first spring is compressed to the limit position. Under the elastic force of the first spring, the cleaning rollers on both sides press and fix the lens, thereby improving the stability of the lens during use;

[0018] (3) The invention provides a gear on the rotating rod on one side of the second magnetic block, and the gear meshes with the rack. When the mounting ring is pulled downward, the second magnetic block rotates to a state where one end with the same magnetic properties as the first magnetic block faces upward, generating a repulsive force on the first magnetic block, causing the first magnetic block to move upward, and the pressure plate to move away from the clamping plate, thereby facilitating the installation of the lens. At the same time, after the mounting ring is moved back, the second magnetic block rotates to a state where one end with the opposite magnetic properties to the first magnetic block faces upward, generating an attractive force on the first magnetic block, causing the first magnetic block to move downward, and the pressure plate to move toward the clamping plate to press and fix the lens, thereby facilitating the disassembly and assembly of the lens and improving the disassembly and assembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0020] In the attached picture:

[0021] Figure 1 A schematic diagram of the structure of the sunglasses that facilitates lens replacement according to the present invention;

[0022] Figure 2 This is a schematic diagram of the mounting slot structure of the present invention;

[0023] Figure 3 It is a schematic diagram of the structure of the movable slot of the present invention;

[0024] Figure 4 It is a schematic diagram of the splint structure of the present invention;

[0025] Figure 5 This is a schematic diagram of the structure of the lens fixing assembly of the present invention;

[0026] Figure 6 It is a schematic diagram of the cam structure of the present invention;

[0027] Figure 7 This is a schematic diagram of the structure of the disassembly and assembly drive assembly of the present invention;

[0028] Figure 8 This is a schematic diagram of the internal structure of the second connecting plate of the present invention;

[0029] In the figure: 1, frame; 2, first connecting plate; 3, second connecting plate; 4, glasses leg; 5, lens mounting assembly; 501, mounting groove; 502, movable groove; 503, clamping plate; 504, side groove; 505, cleaning roller; 506, rotating shaft; 507, first slide plate; 508, pressing plate; 509, second slide plate; 510, first spring; 511, slide groove; 6, lens fixing assembly; 601, fixing plate; 602, supporting plate; 603, cam; 604, rotating shaft; 605, baffle; 606, screw groove; 607, screw rod; 608, first limiting Position plate; 609, second limit plate; 610, cross bar; 611, connecting plate; 7, disassembly and assembly of drive assembly; 701, first swivel seat; 702, rotating rod; 703, middle plate; 704, second swivel seat; 705, rod groove; 706, bottom rod; 707, first magnetic block; 708, longitudinal groove; 709, sliding groove; 710, mounting ring; 711, sliding block; 712, second spring; 713, second magnetic block; 714, swivel groove; 715, rotating rod; 716, gear; 717, rack; 718, bottom plate; 719, connecting rod; 720, pull rod. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0031] Embodiment 1, by Figure 1-Figure 8 The present invention comprises two eyeglass frames 1, a first connecting plate 2 is installed between the two eyeglass frames 1, a second connecting plate 3 is installed between the two eyeglass frames 1, the second connecting plate 3 is located below the first connecting plate 2, the two eyeglass frames 1 are hinged with eyeglass legs 4 on the sides away from each other, and a lens mounting assembly 5 is installed on the eyeglass frames 1;

[0032] The lens mounting assembly 5 includes a mounting groove 501 provided in the interior of the lens frame 1, the top of the mounting groove 501 penetrates to the top of the lens frame 1, movable grooves 502 are symmetrically provided on the front and back sides of the mounting groove 501, and slide grooves 511 are symmetrically provided on both sides of the movable groove 502, a clamping plate 503 is installed in the interior of the movable groove 502, a side groove 504 is provided on the side of the clamping plate 503 close to the mounting groove 501, cleaning rollers 505 are equidistantly installed in the interior of the side groove 504, rotating shafts 506 are symmetrically installed at both ends of the cleaning roller 505, the rotating shaft 506 is rotatably connected to the inner wall of the side groove 504, first slide plates (507) are symmetrically installed on both sides of the side groove 504, and the first slide plate 507 is slidably installed in the interior of the slide groove 511, a pressing plate 508 is provided on the side of the side groove 504 away from the mounting groove 501, and the pressing plate 508 is installed in the interior of the movable groove 502, and the pressing plate Second slide plates 509 are symmetrically installed on both sides of 508, and the second slide plates 509 are slidably installed inside the slide groove 511. A first spring 510 is installed between the second slide plate 509 and the first slide plate 507, and the two ends of the first spring 510 are fixedly connected to the second slide plate 509 and the first slide plate 507 respectively. A lens fixing component 6 is provided on the side of the pressure plate 508 away from the installation groove 501. When the lens is inserted into the installation groove 501 from the top of the installation groove 501, the clamping plate 503 is pushed toward the pressure plate 508 under the action of thrust, so that the lens passes between the two clamping plates 503, so that the cleaning rollers 505 on the two clamping plates 503 are respectively tightly attached to the inner and outer sides of the lens. When the lens is continuously moving, the cleaning roller 505 continuously wipes the dirt on the lens, thereby ensuring the cleanliness of the lens during the installation process, reducing the cleaning after installation, and improving the installation efficiency.

[0033] The lens fixing assembly 6 includes a fixing plate 601 installed on the inner wall of the movable groove 502 away from the mounting groove 501, support plates 602 are symmetrically installed at both ends of the fixing plate 601, a cam 603 is installed between the two support plates 602, rotating shafts 604 are symmetrically installed at both ends of the cam 603, the rotating shaft 604 is rotatably connected to the support plate 602, a baffle 605 is installed at the end of the rotating shaft 604 away from the cam 603, the baffle 605 is located on the side of the support plate 602 away from the cam 603, a screw groove 606 is opened inside the cam 603, both ends of the screw groove 606 respectively penetrate to the side of the two baffles 605 away from each other, a screw rod 607 is connected to the internal thread of the screw groove 606, a first limiting plate 608 is installed at the end of the screw 607 close to the eyeglass leg 4, and a second limiting plate 608 is installed at the end of the screw 607 away from the eyeglass leg 4 A limit plate 609 and a second limit plate 609 are provided with a cross bar 610 on the side away from the screw rod 607, and the cross bar 610 extends to the side where the two frames 1 are close to each other. A connecting plate 611 is provided at one end of the cross bar 610, and the connecting plate 611 is located on the side where the two frames 1 are close to each other. A disassembly and assembly drive assembly 7 is provided between the two connecting plates 611. After the lens is installed, the first magnetic block 707 moves downward and pulls the connecting plate 611 away from the side of the frame 1 through the rotating rod 702, thereby causing the screw rod 607 to move laterally, causing the support plate 602 to rotate to the side of the long axis and contact the pressure plate 508, thereby pushing the pressure plate 508 toward the clamping plate 503, causing the first spring 510 to be compressed to the limit position. Under the elastic force of the first spring 510, the cleaning rollers 505 on both sides press and fix the lens, thereby improving the stability of the lens during use.

[0034] The disassembly and assembly driving assembly 7 includes a first rotating seat 701 symmetrically installed on one side of the two connecting plates 611 close to each other, a rotating rod 702 is rotatably installed on the first rotating seat 701, a second rotating seat 704 is rotatably installed on the bottom end of the rotating rod 702, and the two second rotating seats 704 are symmetrically installed on the top of the middle plate 703, the middle plate 703 is located above the first connecting plate 2, a bottom rod 706 is installed at the bottom end of the middle plate 703, the bottom rod 706 is movably installed inside the rod groove 705, the rod groove 705 is opened inside the first connecting plate 2, a first magnetic block 707 is installed at the bottom end of the bottom rod 706, a longitudinal groove 708 is opened on the second connecting plate 3, the longitudinal groove 708 is located below the first magnetic block 707, and the longitudinal groove 708 is located below the first magnetic block 707. Sliding grooves 709 are symmetrically provided on both sides of the groove 708, a mounting ring 710 is installed inside the longitudinal groove 708, the outer wall of the mounting ring 710 is in close contact with the inner wall of the longitudinal groove 708, sliding blocks 711 are symmetrically installed on both sides of the mounting ring 710, the sliding block 711 is slidably installed inside the sliding groove 709, a second spring 712 is installed at the bottom end of the sliding block 711, the bottom end of the second spring 712 is fixedly connected to the inner bottom wall of the sliding groove 709, a second magnetic block 713 is installed inside the mounting ring 710, the top and bottom ends of the second magnetic block 713 have opposite magnetism, rotating rods 715 are symmetrically installed at both ends of the second magnetic block 713, the rotating rod 715 is rotatably installed inside the rotating groove 714, the rotating groove 714 The two sliding blocks 711 are symmetrically opened, one end of the rotating groove 714 penetrates to the side of the sliding block 711 away from the mounting ring 710, and the other end of the rotating groove 714 penetrates to the inner side of the mounting ring 710. A gear 716 is installed at one end of one of the rotating rods 715, and a rack 717 is meshed and connected to one side of the gear 716. The rack 717 is installed on the side wall of the sliding groove 709. A bottom plate 718 is provided below the second magnetic block 713, and a connecting rod 719 is installed at an equal angle at the top of the bottom plate 718. The top of the connecting rod 719 is fixedly connected to the mounting ring 710, and a pull rod 720 is installed at the bottom end of the bottom plate 718. The pull rod 720 is located below the second connecting plate 3. The rotating rod 718 on one side of the second magnetic block 713 15 is provided with a gear 716, which is meshed with a rack 717. When the mounting ring 710 is pulled downward, the second magnetic block 713 rotates to a state where one end of the second magnetic block 713 is facing upward with the same magnetism as the first magnetic block 707, and a repulsive force is generated on the first magnetic block 707, so that the first magnetic block 707 moves upward, and the pressure plate 508 moves away from the clamping plate 503, which is convenient for the installation of the lens. At the same time, after the mounting ring 710 moves back, the second magnetic block 713 rotates to a state where one end of the second magnetic block 713 is facing upward with the opposite magnetism to the first magnetic block 707, and an attractive force is generated on the first magnetic block 707, so that the first magnetic block 707 moves downward, and the pressure plate 508 moves toward the clamping plate 503 to press and fix the lens, thereby facilitating the disassembly and assembly of the lens and improving the disassembly and assembly efficiency.

[0035] Working principle: When in use, the pull rod 720 is pulled downward to move the mounting ring 710 downward. Since the gear 716 is meshed with the rack 717, the second magnetic block 713 rotates 180 degrees during the downward movement of the mounting ring 710, so that the end of the second magnetic block 713 with the same magnetic properties as the first magnetic block 707 is set upward, thereby generating a repulsive force on the first magnetic block 707, so that the middle plate 703 moves upward, and the connecting plate 611 is pushed toward the frame 1 through the two rotating rods 702, so that the screw 607 moves back until the second limit plate 609 and the support plate 60 2, since the screw rod 607 is threadedly connected with the cam 603, the cam 603 rotates, so that the short diameter end of the cam 603 moves with the pressing plate 508, so that the pressing plate 508 moves back under the elastic force of the first spring 510, and the lens to be installed is inserted into the installation groove 501. Under the action of pressure, the clamping plate 503 moves toward the pressing plate 508, so that the lens passes between the two clamping plates 503, so that the inner and outer sides of the lens are closely attached to the outer wall of the cleaning roller 505, and during the movement, the cleaning roller 505 continuously rubs and cleans the inner and outer sides of the lens, which is convenient for use;

[0036] After installation, pull rod 720 is pulled downward to move mounting ring 710 back, thereby causing second magnetic block 713 to rotate under the action of gear 716 and rack 717, so that the end of second magnetic block 713 opposite to the first magnetic block 707 is set upward, thereby generating attraction for first magnetic block 707, thereby driving bottom rod 706 to move downward, and then driving connecting plate 611 to move toward the side away from frame 1 through rotating rod 702, thereby pulling screw 607 to move until first limit plate 608 contacts support plate 602, and when screw 607 moves, it drives cam 603 to rotate until the long axis contacts pressure plate 508, thereby pushing pressure plate 508 to move toward clamping plate 503, thereby causing first spring 510 to be compressed to the limit state, thereby pressing and fixing the lens under the action of elastic force, thereby ensuring the stability of glasses when used.

Claims

1. A pair of sunglasses with easily replaceable lenses, comprising two frames (1), characterized in that: A first connecting plate (2) is installed between the two frames (1), a second connecting plate (3) is installed between the two frames (1), the second connecting plate (3) is located below the first connecting plate (2), the two frames (1) are hingedly connected with eyeglass legs (4) on the sides away from each other, and a lens mounting assembly (5) is installed on the frames (1); The lens mounting assembly (5) comprises a mounting groove (501) formed inside the lens frame (1), the top of the mounting groove (501) extending through the top of the lens frame (1), movable grooves (502) being symmetrically formed on the front and back sides of the mounting groove (501), and sliding grooves (511) being symmetrically formed on both sides of the movable groove (502); A clamping plate (503) is installed inside the movable groove (502), and a side groove (504) is opened on the side of the clamping plate (503) close to the installation groove (501). Cleaning rollers (505) are installed equidistantly inside the side groove (504). Rotating shafts (506) are symmetrically installed at both ends of the cleaning rollers (505). The rotating shafts (506) are rotatably connected to the inner wall of the side groove (504). First slide plates (507) are symmetrically installed on both sides of the side groove (504). The first slide plates (507) are slidably installed inside the slide groove (511). A pressure plate (508) is provided on the side of the side groove (504) away from the installation groove (501). The pressure plate (508) is installed inside the movable groove (502). The second slide plates (509) are symmetrically mounted on both sides of the pressure plate (508), and the second slide plates (509) are slidably mounted inside the slide groove (511). A first spring (510) is mounted between the second slide plate (509) and the first slide plate (507), and the two ends of the first spring (510) are respectively fixedly connected to the second slide plate (509) and the first slide plate (507). A lens fixing assembly (6) is provided on the side of the pressure plate (508) away from the mounting groove (501), and the pressure plate (508) is driven to move toward the clamping plate (503), so that the first spring (510) is compressed to an extreme state, and the lens is pressed and fixed under the action of the elastic force, thereby ensuring the stability of the glasses when used.

2. The sunglasses with easily replaceable lenses according to claim 1, characterized in that: The lens fixing assembly (6) comprises a fixing plate (601) mounted on the inner wall of the movable groove (502) on a side away from the mounting groove (501); support plates (602) are symmetrically mounted at both ends of the fixing plate (601); a cam (603) is mounted between the two support plates (602); rotating shafts (604) are symmetrically mounted at both ends of the cam (603); the rotating shafts (604) are rotatably connected to the supporting plates (602); a baffle (605) is mounted on one end of the rotating shaft (604) away from the cam (603); and the baffle (605) is located on a side of the supporting plate (602) away from the cam (603).

3. The sunglasses with easily replaceable lenses according to claim 2, characterized in that: A screw groove (606) is provided inside the cam (603), and two ends of the screw groove (606) respectively penetrate to the sides of the two baffles (605) that are away from each other. A screw rod (607) is connected to the internal thread of the screw groove (606), and a first limiting plate (608) is installed at one end of the screw rod (607) close to the eyeglass leg (4), and a second limiting plate (609) is installed at one end of the screw rod (607) away from the eyeglass leg (4).

4. The sunglasses with easily replaceable lenses according to claim 3, characterized in that: A cross bar (610) is installed on the side of the second limit plate (609) away from the screw rod (607), and the cross bar (610) passes through the side where the two mirror frames (1) are close to each other. A connecting plate (611) is installed on one end of the cross bar (610), and the connecting plate (611) is located on the side where the two mirror frames (1) are close to each other. A disassembly and assembly drive assembly (7) is installed between the two connecting plates (611).

5. The sunglasses with easily replaceable lenses according to claim 4, characterized in that: The disassembly and assembly driving assembly (7) comprises a first rotating seat (701) symmetrically mounted on one side of the two connecting plates (611) close to each other, a rotating rod (702) being rotatably mounted on the first rotating seat (701), a second rotating seat (704) being rotatably mounted on the bottom end of the rotating rod (702), two second rotating seats (704) being symmetrically mounted on the top end of a middle plate (703), the middle plate (703) being located above the first connecting plate (2), a bottom rod (706) being mounted on the bottom end of the middle plate (703), the bottom rod (706) being movably mounted inside a rod groove (705), the rod groove (705) being opened inside the first connecting plate (2), and a first magnetic block (707) being mounted on the bottom end of the bottom rod (706).

6. The sunglasses with easily replaceable lenses according to claim 5, characterized in that: The second connecting plate (3) is provided with a longitudinal groove (708), the longitudinal groove (708) being located below the first magnetic block (707), sliding grooves (709) being symmetrically provided on both sides of the longitudinal groove (708), a mounting ring (710) being installed inside the longitudinal groove (708), the outer wall of the mounting ring (710) being in close contact with the inner wall of the longitudinal groove (708), sliding blocks (711) being symmetrically installed on both sides of the mounting ring (710), the sliding blocks (711) being slidably installed inside the sliding groove (709), a second spring (712) being installed at the bottom end of the sliding block (711), the bottom end of the second spring (712) being fixedly connected to the inner bottom wall of the sliding groove (709), a second magnetic block (713) being installed inside the mounting ring (710), the top end and the bottom end of the second magnetic block (713) having opposite magnetic properties.

7. The sunglasses with easily replaceable lenses according to claim 6, characterized in that: Rotating rods (715) are symmetrically mounted at both ends of the second magnetic block (713). The rotating rods (715) are rotatably mounted inside a rotating groove (714). The rotating grooves (714) are symmetrically arranged on the two sliding blocks (711). One end of the rotating groove (714) passes through a side of the sliding block (711) away from the mounting ring (710), and the other end of the rotating groove (714) passes through the inner side of the mounting ring (710). A gear (716) is mounted on one end of one of the rotating rods (715). A rack (717) is meshedly connected to one side of the gear (716). The rack (717) is mounted on the side wall of the sliding groove (709).

8. The sunglasses with easily replaceable lenses according to claim 6, characterized in that: A bottom plate (718) is provided below the second magnetic block (713), a connecting rod (719) is installed at an equal angle on the top of the bottom plate (718), the top of the connecting rod (719) is fixedly connected to the mounting ring (710), and a pull rod (720) is installed at the bottom end of the bottom plate (718), and the pull rod (720) is located below the second connecting plate (3).

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