A lensometer capable of stably clamping a special-shaped lens

Abstract

The application provides a power meter capable of stably clamping special-shaped lenses, and belongs to the technical field of power meters. The power meter comprises a machine body, a lens clamping mechanism is arranged on the machine body, the lens clamping mechanism comprises a bearing table, a main supporting mechanism, a limiting mechanism and an auxiliary supporting mechanism which are arranged on the bearing table, the main supporting mechanism and the limiting mechanism are used for clamping a lens under test, and the auxiliary supporting mechanism is used for supporting a non-lens under test, so that the lens under test and the non-lens under test are fixed at the same time, an operator is not required to hold glasses during detection, and the labor intensity is effectively reduced. The lower pressing rod of the self-adjusting limiting assembly is adaptively adjusted, the irregular upper surface of the lens is adapted, and local excessive stress is avoided; manual adjustment is not required, the operation is simplified, the auxiliary supporting mechanism is matched, the non-lens under test is not required to be held by hand, and the efficiency is improved.

Description

Technical Field

[0001] This application belongs to the field of focimeter technology, and in particular relates to a focimeter that can stably hold irregularly shaped lenses. Background Technology

[0002] Existing focimeter lens fixing mechanisms are mostly based on standard circular lens designs, using rigid jaws or suction devices of fixed sizes for clamping. The clamping points of these mechanisms are fixed in position and can only effectively match lenses with regular edges. For irregularly shaped lenses (such as polygonal, chamfered, or irregularly curved edges), their edge contours cannot match the fixed clamping points, leading to force imbalance during clamping. This can cause lens displacement, increasing measurement errors, or even damage to the lens edge or surface scratches due to excessive local pressure, making it difficult to meet the stable fixing requirements of irregularly shaped lenses.

[0003] During the testing process, both lenses of a pair of glasses need to be tested separately. When one lens is fixed in place, the other lens is often suspended in the air. Current focimeters lack a support structure for the non-examined lens, which may sag due to gravity, potentially deforming the frame or colliding with equipment components and causing damage. To avoid these problems, operators must continuously support the non-examined lens with their hands, increasing labor intensity and potentially causing hand tremors that interfere with the stability of the examined lens, further reducing testing accuracy. This also restricts hand operating space, leading to low testing efficiency.

[0004] With the diversification of eyeglass designs and the increasing use of irregularly shaped lenses, the limitations of existing focimeters in terms of clamping compatibility, support for non-examined lenses, and ease of operation are becoming increasingly prominent. There is an urgent need for a focimeter structure that can stably clamp irregularly shaped lenses and simultaneously solve the problem of supporting non-examined lenses in order to meet actual testing needs. Summary of the Invention

[0005] This application provides a focimeter capable of stably holding irregularly shaped lenses. It can stably hold irregularly shaped lenses by adaptively adjusting the downward pressure rod of a self-adjusting limiting component to fit the irregular upper surface of the lens, avoiding excessive localized force. No manual adjustment is required, simplifying operation. Combined with an auxiliary support mechanism, it eliminates the need to manually support non-examined lenses, improving efficiency. This application solves the problems of existing focimeters that struggle to stably hold irregularly shaped lenses, easily leading to displacement or breakage, and the lack of support for non-examined lenses, requiring manual support, which increases labor intensity and affects testing accuracy and efficiency.

[0006] This application provides a focimeter capable of stably clamping irregularly shaped lenses, including a body, on which a lens clamping mechanism is provided;

[0007] The lens clamping mechanism includes a support platform and a main support mechanism, a limiting mechanism and an auxiliary support mechanism disposed on the support platform. The main support mechanism and the limiting mechanism are configured to clamp the lens to be inspected, and the auxiliary support mechanism is configured to support the lens not to be inspected.

[0008] The limiting mechanism includes a longitudinal lifting mechanism and a self-adjusting limiting component disposed at the moving end of the longitudinal lifting mechanism. The self-adjusting limiting component includes an annular tube, a cylinder, a first piston, and a pressing rod.

[0009] The annular tube is connected to the moving end of the longitudinal lifting mechanism. The top end of the cylinder is connected to the annular tube, and multiple cylinders are evenly distributed around the axis of the annular tube. The first piston is disposed in the cylinder. One end of the pressing rod is connected to the first piston, and the other end extends vertically downward through the cylinder. Multiple pressing rods and the main support mechanism clamp the lens to be inspected.

[0010] In one feasible implementation, the self-adjusting limiting assembly further includes a tube, a second piston, a display rod, and a spring;

[0011] The tube body is disposed at the moving end of the longitudinal lifting mechanism, and one end of the tube body is connected to the annular tube;

[0012] The second piston is disposed inside the tube, one end of the display rod is connected to the second piston, the other end of the display rod passes through the other end of the tube, and the outer wall of the display rod is provided with scale markings;

[0013] The spring is sleeved on the display rod, and the two ends of the spring abut against the outer wall of the second piston and the inner wall of the tube, respectively.

[0014] In one feasible implementation, the longitudinal lifting mechanism includes a sleeve, a damping element, and a connecting rod;

[0015] The sleeve is disposed on the support platform, and the damping element is disposed inside the sleeve;

[0016] The connecting rod is inserted into the sleeve, the connecting rod is slidably connected to the damping element, and the top end of the connecting rod is connected to the outer wall of the tube.

[0017] In one feasible implementation, the damping element is a rubber ring, and a plurality of rubber rings are evenly arranged on the inner wall of the sleeve from top to bottom. The rubber rings are sleeved on the connecting rod, and the outer wall of the connecting rod is slidably connected to the inner wall of the rubber ring.

[0018] In one feasible implementation, the main support mechanism includes a disc body, which is disposed on the support platform and is vertically opposite to the annular tube.

[0019] The disc body is provided with a radial adjustment mechanism, and multiple radial adjustment mechanisms are evenly distributed around the axis of the disc body. The moving end of each of the multiple radial adjustment mechanisms is provided with a main support rod.

[0020] The lens under inspection is held by multiple pressure rods and multiple main support rods.

[0021] In one feasible implementation, the upper surface of the disc body is provided with a sliding groove, the side wall of the disc body is provided with a through hole communicating with the sliding groove, the radial adjustment mechanism is disposed in the sliding groove, and the radial adjustment mechanism includes a screw and a slider;

[0022] The screw passes through the through hole from the outside to the inside, and the end of the screw is rotatably connected to the inner wall of the slide groove. The slider is slidably connected to the slide groove, and a screw hole is provided in the middle of the slider. The screw is screwed into the screw hole of the slider.

[0023] One end of the main support rod is connected to the slider, and the other end extends vertically upward.

[0024] In one feasible implementation, the auxiliary support mechanism includes a lateral adjustment mechanism, a longitudinal adjustment mechanism, and an auxiliary support rod;

[0025] The lateral adjustment mechanism is disposed on the support platform, the longitudinal adjustment mechanism is disposed at the moving end of the lateral adjustment mechanism, and the auxiliary support rod is disposed at the moving end of the longitudinal adjustment mechanism.

[0026] In one feasible implementation, the lateral adjustment mechanism includes an extension plate and a slider, wherein the slider is slidably connected to the extension plate;

[0027] The extension plate is provided with a through groove;

[0028] The sliding component includes an upper plate, a connecting plate, and a lower plate. The upper plate and the lower plate are respectively disposed on the upper and lower sides of the extension plate. The connecting plate is disposed in the through groove and its two ends are respectively connected to the upper plate and the lower plate.

[0029] In one feasible implementation, the longitudinal adjustment mechanism includes an inner screw tube, an outer screw, a horizontal plate, and a limiting rod;

[0030] The sliding member has a mounting hole and a limiting hole in the middle and side respectively. The inner threaded tube is rotatably connected to the mounting hole of the sliding member. The outer threaded rod is screwed to the inner threaded tube. The top end of the outer threaded rod is connected to the horizontal plate.

[0031] The limiting rod is inserted into the limiting hole, and the top end of the limiting rod is connected to the horizontal plate;

[0032] One end of the auxiliary support rod is connected to the horizontal plate, and the other end extends vertically upward.

[0033] In one feasible implementation, a plurality of the auxiliary support rods are evenly distributed on the horizontal plate along a first direction, which is perpendicular to the movement direction of the lateral adjustment mechanism.

[0034] The present application provides a focimeter that can stably hold irregularly shaped lenses. The lens under test is held by a main support mechanism and a limiting mechanism, while an auxiliary support mechanism supports the non-examined lens, so that the lens under test and the non-examined lens are fixed at the same time. During the test, the operator does not need to hold the glasses, which effectively reduces the labor intensity.

[0035] Furthermore, the self-adjusting limiting component of the limiting mechanism, through the cooperation of the annular tube, cylinder, first piston, and pressing rods, utilizes the pressure transmission of the medium inside the annular tube and cylinder to allow multiple pressing rods to adaptively adjust their extension length. When clamping irregularly shaped lenses, even if the upper surface of the lens is not horizontal, the pressing rod that first contacts the lens will push the uncontacted pressing rods to extend through the medium pressure, ultimately ensuring that all pressing rods abut against the upper surface of the lens, forming a stable clamping with the main support mechanism. This avoids instability or displacement caused by the irregular shape of the lens, ensuring the stability of the lens during the inspection process. At the same time, the pressing rods achieve synchronous adaptive pressure through the medium pressure, rather than rigid contact, and can automatically distribute pressure according to the surface shape of the lens, ensuring uniform force at each contact point. Even when facing irregular surfaces, it can prevent single or partial pressing rods from excessively squeezing the lens, effectively preventing edge damage or surface scratches, and protecting the integrity of the inspected lens. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the focimeter provided in this application that can stably hold irregularly shaped lenses;

[0037] Figure 2 This is a schematic diagram of the lens clamping mechanism;

[0038] Figure 3 This is the front view of the lens clamping mechanism;

[0039] Figure 4 This is a front sectional view of the lens clamping mechanism;

[0040] Figure 5 This is a top sectional view of the lens clamping mechanism;

[0041] Figure 6 This is a sectional view of the auxiliary support mechanism;

[0042] Figure 7 This is a schematic diagram of the lens clamping mechanism in use.

[0043] Explanation of reference numerals in the attached figures:

[0044] 1-Main body; 2-Lens clamping mechanism;

[0045] 100 - Support platform; 200 - Main support mechanism; 300 - Limiting mechanism; 400 - Auxiliary support mechanism;

[0046] 210-Disc body; 220-Radial adjustment mechanism; 230-Main support rod; 310-Longitudinal lifting mechanism; 320-Self-adjusting limit assembly; 410-Horizontal adjustment mechanism; 420-Longitudinal adjustment mechanism; 430-Auxiliary support rod;

[0047] 211-Slide groove; 212-Through hole; 221-Screw; 222-Slider; 311-Sleeve; 312-Damping component; 313-Connecting rod; 321-Annular tube; 322-Cylinder; 323-First piston; 324-Press rod; 325-Tube body; 326-Second piston; 327-Indicator rod; 328-Spring; 411-Extension plate; 412-Sliding component; 421-Internal threaded tube; 422-External screw; 423-Horizontal plate; 424-Limiting rod. Detailed Implementation

[0048] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of this application.

[0049] Existing focimeters suffer from difficulties in clamping irregularly shaped lenses and a lack of support for non-examined lenses. The clamping points of existing fixing mechanisms cannot effectively align with the lens edges, leading to instability, lens displacement, and increased measurement errors. Furthermore, existing fixing mechanisms typically only secure the examined lens, leaving non-examined lenses suspended in the air. Due to gravity, these lenses are prone to sagging, potentially causing frame deformation or damage from collisions with equipment components.

[0050] The focimeter provided in this application, capable of stably clamping irregularly shaped lenses, clamps the lens under test through a main support mechanism 200 and a limiting mechanism 300, while an auxiliary support mechanism 400 supports the non-examined lens, thus simultaneously fixing both the lens under test and the non-examined lens. During testing, the operator does not need to hold the glasses, effectively reducing labor intensity. The self-adjusting limiting component 320's pressure rod 324 adaptively adjusts to fit the irregular upper surface of the lens, avoiding excessive local force; no manual adjustment is required, simplifying operation. Combined with the auxiliary support mechanism, the non-examined lens does not need to be held by hand, improving efficiency.

[0051] The following detailed description, in conjunction with the accompanying drawings, illustrates the specific structure of the focimeter provided in this application, which can stably hold irregularly shaped lenses.

[0052] Reference Figures 1-7 As shown, this application embodiment provides a focimeter that can stably hold irregularly shaped lenses, including a body 1, which can be a conventional focimeter main unit, and a lens clamping mechanism 2 is provided on the body 1. The lens clamping mechanism 2 is used to fix the lens of the eyeglass being examined.

[0053] The lens clamping mechanism 2 includes a support platform 100 and a main support mechanism 200, a limiting mechanism 300, and an auxiliary support mechanism 400 disposed on the support platform 100. The support platform 100 may be rectangular and is fixedly connected to the machine body 1. The main support mechanism 200 and the limiting mechanism 300 are used to clamp the lens to be inspected, and the auxiliary support mechanism 400 is used to support the lens not to be inspected, thereby realizing the simultaneous fixation of the lens to be inspected and the lens not to be inspected. During the inspection, the operator does not need to hold the glasses by hand, which effectively reduces the labor intensity.

[0054] The limiting mechanism 300 includes a longitudinal lifting mechanism 310 and a self-adjusting limiting component 320 disposed at the moving end of the longitudinal lifting mechanism 310. The longitudinal lifting mechanism 310 is disposed on the support platform 100.

[0055] Reference Figures 2-4 As shown, in some embodiments, the self-adjusting limiting assembly 320 includes an annular tube 321, a cylinder 322, a first piston 323, and a pressing rod 324;

[0056] The annular tube 321 can be an annular metal tube. The annular tube 321 is connected to the moving end of the longitudinal lifting mechanism 310, and the annular tube 321 is horizontally arranged and vertically opposite to the main support mechanism 200.

[0057] Both ends of the cylindrical body 322 are open in the axial direction. The top end of the cylindrical body 322 is connected to the annular tube 321, and multiple cylindrical bodies 322 are evenly distributed around the axis of the annular tube 321. Figure 2 As shown, the lower part of the annular tube 321 is provided with three cylinders 322, all of which are vertically arranged and evenly distributed around the axis of the annular tube 321.

[0058] The first piston 323 is disposed inside the cylinder 322. One end of the pressing rod 324 is connected to the first piston 323, and the other end extends vertically downward through the cylinder 322. The bottom end of the pressing rod 324 is provided with a rubber cap. Multiple pressing rods 324 and the main support mechanism 200 clamp the lens to be inspected.

[0059] The annular tube 321 and the cylinder 322 are filled with air or hydraulic oil. In the natural state, the bottom ends of the three pressure rods 324 are located on the same horizontal plane.

[0060] When the self-adjusting limiting component 320 fixes the irregularly shaped lens under inspection, the longitudinal lifting mechanism 310 drives the annular tube 321 to move downward. When the upper surface of the irregularly shaped lens under inspection is horizontal, the rubber caps of the three pressing rods 324 simultaneously abut against the upper surface of the lens under inspection, and clamp the irregularly shaped lens under inspection with the main support mechanism 200, so that the irregularly shaped lens under inspection is stably fixed.

[0061] When the upper surface of the irregularly shaped lens being inspected is not horizontal, such as an inclined plane, a spherical surface, or an irregular shape, the vertical distances between the three pressing rods 324 and the irregularly shaped lens being inspected are not equal. When the annular tube 321 moves downward, the rubber caps of one or two pressing rods 324 first abut against the upper surface of the lens being inspected. As the longitudinal lifting mechanism 310 continues to move downward, the positions of the pressing rods 324 abutting against the lens being inspected and their connected first pistons 323 remain unchanged. The annular tube 321 and the three cylinders 322 continue to move downward, and the air pressure or hydraulic pressure inside the annular tube 321 and the cylinders 322 increases, causing the other pressing rods 324 that are not abutting against the lens being inspected to extend downward until the rubber caps of all three pressing rods 324 abut against the upper surface of the irregularly shaped lens being inspected, clamping the irregularly shaped lens being inspected with the main support mechanism 200, thus stably fixing the irregularly shaped lens being inspected.

[0062] In summary, regardless of the shape of the upper surface of the irregularly shaped lens, the three pressing rods 324 of the self-adjusting limiting component 320 can be self-adjusted, with their ends abutting against the upper surface of the lens, so as to clamp the irregularly shaped lens under inspection with the main support mechanism 200 and fix the irregularly shaped lens under inspection stably.

[0063] Furthermore, in some embodiments, in order to control the pressure of the pressure lever 324 on the lens, the self-adjusting limiting assembly 320 also includes a tube 325, a second piston 326, a display lever 327, and a spring 328;

[0064] The tube body 325 may be a metal tube body, and the tube body 325 is disposed at the moving end of the longitudinal lifting mechanism 310, with one end of the tube body 325 connected to the annular tube 321;

[0065] The second piston 326 is disposed inside the tube 325. The display rod 327 may be a metal rod. The outer wall of the display rod 327 is provided with scale markings. One end of the display rod 327 is connected to the second piston 326, and the other end of the display rod 327 passes through the other end of the tube 325.

[0066] The spring 328 is sleeved on the display rod 327. The two ends of the spring 328 abut against the outer wall of the second piston 326 and the inner wall of the tube 325, respectively. The spring 328 is always in a compressed state, applying an inward thrust to the second piston 326, which increases the pressure in the tube 325 and the annular tube 321, causing the three pressing rods 324 to extend out of the cylinder 322 to their maximum length. At this time, the bottom ends of the three pressing rods 324 are located on the same horizontal plane.

[0067] When the self-adjusting limit component 320 is working, the longitudinal lifting mechanism 310 drives the annular tube 321 to move downward until all three pressing rods 324 abut against the upper surface of the irregularly shaped lens being inspected. Then, the longitudinal lifting mechanism 310 continues to move downward, and the air pressure or hydraulic pressure inside the annular tube 321 increases, pushing the second piston 326 and the display rod 327 to move outward. The display rod 327 extends out of the tube body 325. By reading the scale markings on the display rod 327, the downward pressure of the pressing rod 324 on the lens being inspected can be determined, thereby ensuring the stable fixation of the lens being inspected while avoiding damage to the lens being inspected.

[0068] After the work is completed, the longitudinal lifting mechanism 310 drives the annular tube 321 to move upward, and the three pressing rods 324 are separated from the irregularly shaped lens being inspected. The pressing rods 324 are reset under the elastic force of the spring 328.

[0069] The focimeter provided in this application embodiment can stably hold irregularly shaped lenses, and has the following advantages compared with existing focimeters;

[0070] 1. Achieve stable clamping of irregularly shaped lenses:

[0071] The self-adjusting limiting component 320 of the limiting mechanism 300, through the cooperation of the annular tube 321, the cylinder 322, the first piston 323, and the pressing rods 324, utilizes the pressure transmission of the medium inside the annular tube 321 and the cylinder 322 to allow multiple pressing rods 324 to adaptively adjust their extension length. When clamping irregularly shaped lenses, even if the upper surface of the lens is not horizontal, the pressing rod 324 that first contacts the lens will push the uncontacted pressing rods 324 to extend through the medium pressure, ultimately ensuring that all pressing rods 324 abut against the upper surface of the lens, forming a stable clamping with the main support mechanism 200. This avoids instability or displacement caused by irregular lens shapes, ensuring the stability of the lens during the testing process.

[0072] 2. Compatible with various irregularly shaped lenses:

[0073] Multiple cylinders 322 are evenly distributed around the axis of the annular tube 321. Combined with the self-adjusting function of the pressure rod 324, the structure can adapt to lenses with different upper surface shapes without requiring structural adjustments for irregularly shaped lenses. Compared to the limitations of traditional focimeters that can only adapt to standard-shaped lenses, this significantly improves the equipment's versatility for irregularly shaped lenses, meeting the diverse testing needs of eyeglass designs.

[0074] 3. Avoid excessive localized force that could damage the lens:

[0075] The self-adjusting limiting component 320's pressure rod 324 achieves synchronous adaptive pressure through medium pressure, rather than rigid contact. It can automatically distribute pressure according to the surface morphology of the lens, ensuring uniform force at each contact point. Even when facing irregular surfaces, it can prevent single or partial pressure rods 324 from excessively squeezing the lens, effectively preventing edge damage or surface scratches and protecting the integrity of the inspected lens.

[0076] 4. Simplify operating procedures and improve testing efficiency:

[0077] The longitudinal lifting mechanism 310 drives the self-adjusting limit assembly 320 to lift as a whole. Combined with the automatic adaptation function of the pressing rod 324, the operator can quickly complete the clamping and fixing of irregularly shaped lenses without manually adjusting the position of each pressing rod 324. With the assistance of the auxiliary support mechanism 400, the non-inspected lenses are supported without manual assistance, reducing operation steps, reducing labor intensity, and improving inspection efficiency.

[0078] 5. Quantify pressure to protect the lens:

[0079] Through the combination of tube 325, second piston 326, display rod 327, and spring 328, the self-adjusting limiting assembly 320, in addition to achieving "adaptive clamping of irregularly shaped lenses," further enhances pressure controllability and operational safety. The display rod 327 serves as the "visual window" of the entire pressure control structure; its core function is to convert abstract pneumatic or hydraulic pressure into directly observable mechanical displacement, enabling precise monitoring of the pressure on the lowering rod. The scale visually reflects the pressure exerted by the lowering rod on the lens, avoiding excessive or insufficient pressure due to reliance on experience, ensuring the pressure remains within a safe range. This guarantees stable lens fixation while preventing damage to irregularly shaped lenses due to excessive pressure. Furthermore, the scale provides a unified pressure judgment benchmark, reducing operational differences among different operators and improving consistency in the inspection or processing process.

[0080] Reference Figure 4 As shown, in some embodiments, the longitudinal lifting mechanism 310 includes a sleeve 311, a damping element 312, and a connecting rod 313;

[0081] The sleeve 311 is a vertically arranged metal tube, which is disposed on the support platform 100, and the damping element 312 is disposed inside the sleeve 311;

[0082] The connecting rod 313 is a vertically arranged metal rod with a clearance fit between its diameter and the inner diameter of the sleeve 311. The connecting rod 313 is inserted into the sleeve 311, and the connecting rod 313 is slidably connected to the damping member 312. The top end of the connecting rod 313 is connected to the outer wall of the tube 325.

[0083] There is significant damping between the damping element 312 and the connecting rod 313, which enables self-locking. Manual operation is required to move the connecting rod 313 up and down relative to the sleeve 311. During use, a handle can be provided at the bottom of the connecting rod 313. The operator can use the handle to move the connecting rod 313 and the self-adjusting limit assembly 320 up and down.

[0084] Furthermore, in some embodiments, the damping element 312 is a rubber ring, and a plurality of the rubber rings are evenly arranged from top to bottom on the inner wall of the sleeve 311. The rubber rings are sleeved on the connecting rod 313, and the outer wall of the connecting rod 313 is slidably connected to the inner wall of the rubber ring.

[0085] The outer wall of the rubber ring is conical, and its inner end extends upward, so that the damping force on the connecting rod 313 when it moves upward relative to the rubber ring is less than the damping force when it moves downward relative to the rubber ring. Therefore, it is easy to fix the connecting rod 313 during use and easy to reset the connecting rod 313 upward after use.

[0086] Reference Figures 1-5 As shown, in some embodiments, the main support mechanism 200 includes a disc 210, which is a circular disc that can be horizontally arranged on the upper surface of the support platform 100. The disc 210 is vertically opposite to the annular tube 321.

[0087] The disc body 210 is provided with a radial adjustment mechanism 220. Multiple radial adjustment mechanisms 220 are evenly distributed around the axis of the disc body 210. The moving end of the radial adjustment mechanism 220 moves along the diameter direction of the disc body 210. Each of the moving ends of the multiple radial adjustment mechanisms 220 is provided with a main support rod 230 so that the position of the main support rod 230 is adjustable and the multiple main support rods 230 support the edge area of ​​the lens being inspected.

[0088] The plurality of pressure rods 324 and the plurality of main support rods 230 clamp the lens to be inspected.

[0089] Reference Figure 4 and Figure 5 As shown, in some embodiments, the upper surface of the disk body 210 is provided with a groove 211. The groove 211 can be a rectangular groove, and its length direction passes through the center of the disk body 210. The side wall of the disk body 210 is provided with a through hole 212 communicating with the groove 211. Figure 5In the middle, the disk body 210 is provided with three sliding grooves 211 and three through holes 212. The three sliding grooves 211 are evenly distributed around the axis of the disk body 210, and the three through holes 212 correspond one-to-one with the three sliding grooves 211.

[0090] The radial adjustment mechanism 220 is disposed in the slide groove 211, and the radial adjustment mechanism 220 includes a screw 221 and a slider 222;

[0091] The screw 221 passes through the through hole 212 from the outside to the inside. The screw 221 is rotatably connected to the through hole 212. The inner end of the screw 221 is rotatably connected to the inner wall of the inner end of the slide groove 211. The screw 221 can be set in the middle of the slide groove 211.

[0092] The slider 222 can be a cuboid structure. The slider 222 is slidably connected to the slide groove 211. The middle part of the slider 222 is provided with a screw hole. The screw 221 is screwed into the screw hole of the slider 222. One end of the main support rod 230 is connected to the slider 222, and the other end extends vertically upward. The top of the main support rod 230 is provided with a rubber cap.

[0093] The outer end of the screw 221 is equipped with a knob. When the screw 221 is rotated clockwise by the knob, the slider 222 drives the main support rod 230 to move outward in the slide groove 211. Conversely, when the knob is rotated counterclockwise, the slider 222 drives the main support rod 230 to move inward in the slide groove 211, thereby adjusting the position of the main support rod 230 so that the rubber cap of the main support rod 230 supports the edge of the lens being inspected.

[0094] Reference Figures 4-6 As shown, in some embodiments, the auxiliary support mechanism 400 includes a lateral adjustment mechanism 410, a longitudinal adjustment mechanism 420, and an auxiliary support rod 430.

[0095] The lateral adjustment mechanism 410 is mounted on the support platform 100, and its moving end can move laterally. The longitudinal adjustment mechanism 420 is mounted on the moving end of the lateral adjustment mechanism 410, and its moving end can move longitudinally. The auxiliary support rod 430 is mounted on the moving end of the longitudinal adjustment mechanism 420, and its top end is equipped with a rubber cap. The distance between the auxiliary support rod 430 and the main support rod 230 is adjusted by the lateral adjustment mechanism 410, and the height of the auxiliary support rod 430 is adjusted by the longitudinal adjustment mechanism 420. This allows the auxiliary support rod 430 to support the non-examined lens in a suitable position, ensuring that the non-examined lens and the examined lens are almost horizontal. This facilitates testing and prevents frame deformation or collision damage caused by the non-examined lens being suspended, thus protecting the overall structure of the eyeglasses. Furthermore, it frees the operator's hands, facilitating simultaneous adjustments to the focimeter parameters and significantly improving testing efficiency.

[0096] Furthermore, in some embodiments, the lateral adjustment mechanism 410 includes an extension plate 411 and a slider 412, the slider 412 being slidably connected to the extension plate 411, and the longitudinal adjustment mechanism 420 being disposed on the slider 412;

[0097] The extension plate 411 can be a rectangular plate. The extension plate 411 is fixed on the upper surface of the support platform 100. The disc body 210 can be disposed on the upper surface of the extension plate 411. The extension plate 411 is provided with a through groove, which can be rectangular.

[0098] The sliding member 412 includes an upper plate, a connecting plate, and a lower plate. The upper plate and the lower plate are respectively disposed on the upper and lower sides of the extension plate 411. The connecting plate is disposed in the through groove and its two ends are respectively connected to the upper plate and the lower plate.

[0099] In use, the sliding member 412 can be manually pushed to move laterally, thereby driving the longitudinal adjustment mechanism 420 and the auxiliary support rod 430 to move.

[0100] Furthermore, in some embodiments, the longitudinal adjustment mechanism 420 includes an inner screw tube 421, an outer screw rod 422, a horizontal plate 423, and a limiting rod 424;

[0101] The sliding member 412 is provided with a mounting hole and a limiting hole in the middle and side respectively. The inner threaded tube 421 is a vertically arranged metal tube. The inner threaded tube 421 is rotatably connected to the mounting hole of the sliding member 412. The outer threaded rod 422 is screwed to the inner threaded tube 421. The top end of the outer threaded rod 422 is connected to the horizontal plate 423. The horizontal plate 423 is a horizontally arranged rectangular plate.

[0102] The limiting rod 424 is a vertically arranged metal rod body. The limiting rod 424 is inserted into the limiting hole, and the top end of the limiting rod 424 is connected to the horizontal plate 423.

[0103] One end of the auxiliary support rod 430 is connected to the horizontal plate 423, and the other end extends vertically upward;

[0104] The bottom end of the inner screw tube 421 is equipped with a knob. When the inner screw tube 421 is rotated clockwise by the knob, the outer screw 422 cannot rotate under the limiting action of the horizontal plate 423 and the limiting rod 424, which drives the horizontal plate 423 and the auxiliary support rod 430 to move upward. Conversely, when the inner screw tube 421 is rotated counterclockwise by the knob, the outer screw 422 drives the horizontal plate 423 and the auxiliary support rod 430 to move downward, thereby adjusting the height of the auxiliary support rod 430 so that the auxiliary support rod 430 supports the non-examined lens.

[0105] Reference Figure 5As shown, in some embodiments, a plurality of the auxiliary support rods 430 are evenly distributed on the horizontal plate 423 along a first direction, which is perpendicular to the movement direction of the lateral adjustment mechanism 410.

[0106] exist Figure 5 In the middle, there are two auxiliary support rods 430. The arrangement direction of the two auxiliary support rods 430 is perpendicular to the movement direction of the lateral adjustment mechanism 410, so as to facilitate the support of lenses of different widths.

[0107] Based on the aforementioned technical features, the working principle of the focimeter capable of stably holding irregularly shaped lenses provided in this application in practical application scenarios is as follows:

[0108] Reference Figure 7 As shown, Figure 7 In the diagram, A is the lens being tested, and B is the lens not being tested.

[0109] In use, adjust the position of the main support rod 230 according to the size of the lens A to be inspected, and then place the lens A to be inspected on the main support rod 230 so that the multiple main support rods 230 support the edge of the lens A to be inspected.

[0110] Adjust the position and height of the auxiliary support rod 430 according to the position and height of the non-examined lens B, so that the auxiliary support rod 430 supports the non-examined lens B;

[0111] Pull down the connecting rod 313 to move the annular tube 321 downward. All three pressing rods 324 abut against the upper surface of the lens A under inspection. Observe the scale markings on the display rod 327 and control the downward pressure of the pressing rods 324 on the lens under inspection. This ensures stable fixation of the lens under inspection while avoiding damage to the lens.

[0112] This application uses the main support mechanism 200 and the limiting mechanism 300 to clamp the lens to be tested, and the auxiliary support mechanism 400 to support the non-examined lens, so that the lens to be tested and the non-examined lens can be fixed at the same time. During the test, the operator does not need to hold the glasses, which effectively reduces the labor intensity.

[0113] Furthermore, the position of the main support rod 230 in the main support mechanism 200 can be adjusted by the radial adjustment mechanism 220, so that multiple main support rods 230 can stably support the edge of the irregular lens. The self-adjusting limiting component 320 can adaptively adjust the downward pressure rod 324 to adapt to the irregular upper surface of the lens and avoid excessive local stress. No manual adjustment is required, simplifying the operation. With the auxiliary support mechanism, there is no need to hold the non-examined lens by hand, improving efficiency.

[0114] It is readily understood that, based on the several embodiments provided in this application, those skilled in the art can combine, split, or reorganize the embodiments of this application to obtain other embodiments, none of which exceed the protection scope of this application.

[0115] The above detailed embodiments further illustrate the purpose, technical solution, and beneficial effects of the embodiments of this application. It should be understood that the above are merely specific embodiments of the embodiments of this application and are not intended to limit the protection scope of the embodiments of this application. Any modifications, equivalent substitutions, improvements, etc., made on the basis of the technical solutions of the embodiments of this application should be included within the protection scope of the embodiments of this application.

Claims

1. A focimeter capable of stably holding irregularly shaped lenses, characterized in that: Includes a body (1), on which a lens clamping mechanism (2) is provided; The lens clamping mechanism (2) includes a support platform (100) and a main support mechanism (200), a limiting mechanism (300) and an auxiliary support mechanism (400) disposed on the support platform (100). The main support mechanism (200) and the limiting mechanism (300) are configured to clamp the lens to be inspected, and the auxiliary support mechanism (400) is configured to support a non-examined lens. The limiting mechanism (300) includes a longitudinal lifting mechanism (310) and a self-adjusting limiting component (320) disposed at the moving end of the longitudinal lifting mechanism (310). The self-adjusting limiting component (320) includes an annular tube (321), a cylinder (322), a first piston (323), and a pressing rod (324). The annular tube (321) is connected to the moving end of the longitudinal lifting mechanism (310). The top end of the cylinder (322) is connected to the annular tube (321), and multiple cylinders (322) are evenly distributed around the axis of the annular tube (321). The first piston (323) is disposed inside the cylinder (322). One end of the pressing rod (324) is connected to the first piston (323), and the other end extends vertically downward through the cylinder (322). Multiple pressing rods (324) and the main support mechanism (200) clamp the lens to be inspected. The self-adjusting limiting component of the limiting mechanism, through the cooperation of the annular tube, the cylinder, the first piston and the pressing rod, utilizes the pressure transmission between the annular tube and the medium inside the cylinder to enable multiple pressing rods to adaptively adjust their extension length.

2. The focimeter capable of stably holding irregularly shaped lenses according to claim 1, characterized in that: The self-adjusting limiting assembly (320) also includes a tube (325), a second piston (326), a display rod (327), and a spring (328); The tube body (325) is disposed at the moving end of the longitudinal lifting mechanism (310), and one end of the tube body (325) is connected to the annular tube (321); The second piston (326) is disposed inside the tube (325), one end of the display rod (327) is connected to the second piston (326), the other end of the display rod (327) passes through the other end of the tube (325), and the outer wall of the display rod (327) is provided with scale markings; The spring (328) is sleeved on the display rod (327), and the two ends of the spring (328) abut against the outer wall of the second piston (326) and the inner wall of the tube (325), respectively.

3. The focimeter capable of stably holding irregularly shaped lenses according to claim 2, characterized in that: The longitudinal lifting mechanism (310) includes a sleeve (311), a damping element (312), and a connecting rod (313). The sleeve (311) is disposed on the support platform (100), and the damping element (312) is disposed inside the sleeve (311); The connecting rod (313) is inserted into the sleeve (311), the connecting rod (313) is slidably connected to the damping member (312), and the top end of the connecting rod (313) is connected to the outer wall of the tube body (325).

4. The focimeter capable of stably holding irregularly shaped lenses according to claim 3, characterized in that: The damping element (312) is a rubber ring. Multiple rubber rings are evenly arranged from top to bottom on the inner wall of the sleeve (311). The rubber ring is sleeved on the connecting rod (313). The outer wall of the connecting rod (313) is slidably connected to the inner wall of the rubber ring.

5. The focimeter capable of stably clamping irregularly shaped lenses according to claim 1, characterized in that: The main support mechanism (200) includes a disc (210), which is disposed on the support platform (100) and is vertically opposite to the annular tube (321); The disc body (210) is provided with a radial adjustment mechanism (220), and multiple radial adjustment mechanisms (220) are evenly distributed around the axis of the disc body (210). The moving ends of multiple radial adjustment mechanisms (220) are provided with main support rods (230). The lens under inspection is clamped by multiple pressure rods (324) and multiple main support rods (230).

6. The focimeter capable of stably holding irregularly shaped lenses according to claim 5, characterized in that: The upper surface of the disc body (210) is provided with a sliding groove (211), and the side wall of the disc body (210) is provided with a through hole (212) communicating with the sliding groove (211). The radial adjustment mechanism (220) is disposed in the sliding groove (211), and the radial adjustment mechanism (220) includes a screw (221) and a slider (222). The screw (221) passes through the through hole (212) from the outside to the inside. The end of the screw (221) is rotatably connected to the inner wall of the slide groove (211). The slider (222) is slidably connected to the slide groove (211). The middle part of the slider (222) is provided with a screw hole. The screw (221) is screwed into the screw hole of the slider (222). One end of the main support rod (230) is connected to the slider (222), and the other end extends vertically upward.

7. The focimeter capable of stably holding irregularly shaped lenses according to claim 1, characterized in that: The auxiliary support mechanism (400) includes a lateral adjustment mechanism (410), a longitudinal adjustment mechanism (420), and an auxiliary support rod (430). The lateral adjustment mechanism (410) is disposed on the support platform (100), the longitudinal adjustment mechanism (420) is disposed at the moving end of the lateral adjustment mechanism (410), and the auxiliary support rod (430) is disposed at the moving end of the longitudinal adjustment mechanism (420).

8. The focimeter capable of stably holding irregularly shaped lenses according to claim 7, characterized in that: The lateral adjustment mechanism (410) includes an extension plate (411) and a slider (412), wherein the slider (412) is slidably connected to the extension plate (411); The extension plate (411) is provided with a through groove; The sliding member (412) includes an upper plate, a connecting plate, and a lower plate. The upper plate and the lower plate are respectively disposed on the upper and lower sides of the extension plate (411). The connecting plate is disposed in the through groove and its two ends are respectively connected to the upper plate and the lower plate.

9. The focimeter capable of stably clamping irregularly shaped lenses according to claim 8, characterized in that: The longitudinal adjustment mechanism (420) includes an inner screw tube (421), an outer screw (422), a horizontal plate (423), and a limiting rod (424). The middle and side portions of the sliding member (412) are respectively provided with mounting holes and limiting holes. The inner threaded tube (421) is rotatably connected to the mounting hole of the sliding member (412). The outer threaded rod (422) is screwed to the inner threaded tube (421). The top end of the outer threaded rod (422) is connected to the horizontal plate (423). The limiting rod (424) is inserted into the limiting hole, and the top end of the limiting rod (424) is connected to the horizontal plate (423); One end of the auxiliary support rod (430) is connected to the horizontal plate (423), and the other end extends vertically upward.

10. The focimeter capable of stably holding irregularly shaped lenses according to claim 9, characterized in that: Multiple auxiliary support rods (430) are evenly distributed on the horizontal plate (423) along a first direction, which is perpendicular to the movement direction of the lateral adjustment mechanism (410).

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