Test frame capable of adjusting pupillary distance of single eye

Abstract

The utility model relates to the technical field of ophthalmology detection devices, in particular to a trial frame capable of adjusting the interpupillary distance of a single eye. The pair of glasses comprises two glasses frames and a nose bridge for connecting the two glasses frames, and further comprises a frame adjusting mechanism, a mounting space is arranged in the nose bridge, and the frame adjusting mechanism is mounted in the mounting space; the frame adjusting mechanism comprises a first gear, a transmission assembly and a locking assembly, the first gear penetrates through the nose bridge and is rotatably mounted on the nose bridge, the transmission assembly is vertically arranged in the mounting space, the top of the transmission assembly is meshed with the first gear, one end of the bottom of the transmission assembly is arranged in the nose bridge, and the other end of the bottom of the transmission assembly is connected with the adjacent glasses frame; the top of the locking assembly is connected with the bottom of the transmission assembly, and the bottom of the locking assembly penetrates through the bottom wall of the nose bridge. According to the utility model, the glasses frame can move towards the direction close to or away from the nose bridge, so that the try-on frame can adjust the pupillary distance of a single eye to meet the requirements of different crowds.

Description

TECHNICAL FIELD

[0001] The utility model relates to ophthalmic detection device technical field especially, relates to a kind of single eye pupil distance of adjustable trial frame. BACKGROUND

[0002] Trial frame, also known as trial frame or optometry frame, is a tool used in ophthalmology and eyewear industry to test and display eyeglass lenses. In ophthalmic examination, doctors or optometrists will use trial frame to determine the refractive errors of the wearer, such as myopia, hypermetropia, astigmatism, etc. Different degrees of lenses can be inserted into the trial frame for quick replacement and comparison to help determine the most suitable lens degree.

[0003] However, most of the trial frames currently available are fixed pupil distance. Since the pupil distance of each person is different, and the pupil distance of both eyes of the same person is also different, this will result in the existing fixed pupil distance trial frame being unable to meet the needs of everyone for pupil distance. Generally speaking, different people usually wear trial frames of different pupil distances, which is not only troublesome but also increases the cost. Moreover, in the case of different pupil distances of both eyes of the same person, the trial frame cannot meet the pupil distance of both eyes.

[0004] Therefore, there is an urgent need for a trial frame that can adjust the pupil distance of a single eye to reduce costs and meet the pupil distance needs of everyone. SUMMARY

[0005] (I) Technical problem to be solved

[0006] In view of the above shortcomings and deficiencies of the prior art, the present utility model provides a trial frame with adjustable single eye pupil distance, which solves the technical problem that the existing fixed pupil distance trial frame cannot meet the needs of everyone for pupil distance, different people usually wear trial frames of different pupil distances, which is not only troublesome but also increases the cost. Moreover, in the case of different pupil distances of both eyes of the same person, the trial frame cannot meet the pupil distance of both eyes.

[0007] (II) Technical solution

[0008] In order to achieve the above purpose, the main technical solution adopted by the present utility model comprises:

[0009] The utility model provides a kind of adjustable single eye pupil distance's test frame, including two mirror frames and the nose bridge for the link of the two mirror frames, further include frame adjusting mechanism;The inside of the nose bridge is equipped with installation space, and the frame adjusting mechanism is installed in the installation space;The frame adjusting mechanism includes first gear, transmission assembly and locking assembly, the first gear passes through the nose bridge and is rotatably installed on the nose bridge, the transmission assembly is vertically arranged in the installation space, and the top of the transmission assembly is engaged with the first gear, one end of the bottom of the transmission assembly is placed in the inside of the nose bridge, and the other end is connected with adjacent one mirror frame, the first gear can rotate, to make the transmission assembly drive the mirror frame towards close or far from the nose bridge transverse movement;The top of the locking assembly is connected with the bottom of the transmission assembly, and the bottom of the locking assembly passes through the bottom wall of the nose bridge, for fixing the transmission assembly.

[0010] Preferably, the transmission assembly includes a second gear, a first transmission shaft, a planetary gear set, a second transmission shaft, a third gear and a first rack; the second gear is fixedly sleeved on the outer wall of the first transmission shaft, and the top of the first transmission shaft is rotatably connected with the top wall of the installation space, the second gear is engaged with the first gear, the bottom of the first transmission shaft, the planetary gear set, the second transmission shaft and the third gear are connected in order from top to bottom, the first rack is transversely arranged in the installation space, one end of the first rack is placed in the installation space, and the other end is connected with the side wall of one mirror frame through the side wall of the nose bridge, the first rack is engaged with the third gear, the first gear can drive the second gear to rotate, so that the first transmission shaft, the planetary gear set, the second transmission shaft and the third gear rotate synchronously with the rotation of the second gear, to drive the first rack to move transversely, thereby driving one mirror frame to move towards the direction of close or far from the nose bridge;The top of the locking assembly is connected with the bottom of the third gear.

[0011] Preferably, the planetary gear set comprises a housing, a ring gear, a sun gear and a plurality of planet gears; the sun gear and the plurality of planet gears are both arranged inside the housing, the sun gear has the same axis as the housing, the ring gear is mounted on the inner wall of the housing, the bottom of the first transmission shaft is connected with the top of the sun gear through the top of the housing and the axis of the first transmission shaft is the same as the axis of the sun gear, the plurality of planet gears are arranged between the sun gear and the ring gear respectively and the plurality of planet gears are engaged with the ring gear and the sun gear; the top of the second transmission shaft is connected with the plurality of planet gears one by one through a plurality of mounting rods respectively, so that the first transmission shaft drives the sun gear to rotate, the plurality of planet gears rotate around the axis of the sun gear in the circumferential direction with the rotation of the sun gear, the mounting rods drive the second transmission shaft to rotate around its own axis with the circumferential rotation of the plurality of planet gears, and then the third gear drives the first rack to move transversely to drive one of the mirror frames to move transversely.

[0012] Preferably, the locking assembly comprises a telescopic rod, a locking block and two first locking parts; the bottom of the third gear is coaxially connected with the telescopic rod and the locking block from top to bottom in sequence, the bottom of the locking block penetrates through the bottom wall of the nose bridge and the top of the locking block can have a spacing with the bottom wall of the nose bridge; the two first locking parts are both mounted inside the nose bridge and the two first locking parts are arranged in mirror image with the axis of the locking block, the two first locking parts can abut against the locking block.

[0013] Preferably, the first locking part comprises a locking rod, a limiting plate, a first elastic member and a first handle; a locking space is arranged on both sides of the locking block and inside the nose bridge, the locking space is arranged along the length direction of the nose bridge, the locking rod is located in the locking space and the locking rod can penetrate through the locking space to abut against the locking block; the limiting plate is fixedly sleeved on the outer wall of the locking rod and the side wall of the limiting plate close to the locking block can abut against the inner wall of the locking space close to the locking block; the first elastic member is located in the locking space and one end of the first elastic member abuts against the inner wall of the locking space away from the locking block, the other end of the first elastic member abuts against the end of the locking rod away from the locking block; the first handle is fixedly mounted on the outer wall of the locking block and the first handle always has a spacing with the bottom wall of the nose bridge.

[0014] Preferably, a scale is arranged on the side wall of the first rack away from the third gear, a sight hole is arranged on the nose bridge and the sight hole can correspond to each number in the scale respectively with the movement of the first rack.

[0015] Preferably, the nose pad is connected with the rotating mechanism through the rotating mechanism, the rotating mechanism can drive the nose pad to rotate axially, and the lifting mechanism can drive the rotating mechanism and the nose pad to lift simultaneously.

[0016] Preferably, the lifting mechanism comprises a guide seat, a second gear rack, a fourth gear and a second locking part, the guide seat is in the shape of a concave letter, the second gear rack is inserted into the guide seat, one side wall of the guide seat is provided with a through hole, the fourth gear is rotatably installed in the through hole and is in mesh with the second gear rack, and the second locking part is installed on the side wall of the guide seat opposite to the through hole.

[0017] Preferably, the second locking part comprises a butting rod, a butting plate, a second elastic element, a second handle and a clamping seat, the side edge of the guide seat is provided with an axial same movable space and a moving space, the movable space and the moving space are connected and communicated, and the outer contour of the movable space is larger than that of the moving space; the butting rod is arranged in the movable space and the moving space respectively, the butting plate is installed at one end of the butting rod close to the second gear rack, the second elastic element is sleeved on the outer wall of the butting rod and located in the movable space, the two ends of the second elastic element are in abutment with the butting plate and the inner wall of the movable space respectively, and the butting plate can be in abutment with the side wall of the second gear rack due to the second elastic element; the second handle is connected with the end of the butting rod away from the butting plate; and the clamping seat is installed on the side wall of the guide seat and is provided with a clamping groove, and the second handle can be located in the clamping groove.

[0018] Preferably, the rotating mechanism comprises a rotating plate, two ear plates and a fixed shaft, the two ear plates are installed at the two ends of the bottom of the second gear rack respectively, the two ends of the fixed shaft are connected with the two ear plates respectively, one end of the rotating plate is rotatably installed on the fixed shaft, and the other end of the rotating plate is fixedly connected with the nose pad.

[0019] (Three) beneficial effects

[0020] The beneficial effects of the utility model are as follows:

[0021] The present invention is provided with a frame adjustment mechanism, and the frame adjustment mechanism includes a first gear, a transmission assembly, and a locking assembly, which can achieve precise adjustment of the position of the frame, that is, the rotation of the first gear drives the transmission assembly to work, and then the frame moves laterally, thereby achieving the purpose of adjusting the pupil distance of one eye, greatly enhancing the applicability of the trial frame and meeting the pupil distance needs of different users. Even if the pupil distances of the two eyes of the same person are different, the pupil distances can be adjusted one by one. In addition, by providing a locking assembly, it is possible to lock the transmission assembly so that the current position of the frame can be fixed when the pupil distance is determined, avoiding the pupil distance from changing during the process of wearing the trial frame, simple operation, and reduced cost. The present invention is provided with a first gear, a transmission assembly, and a locking assembly, which can cause the frame to move in a direction close to or away from the bridge of the nose, so that the trial frame can adjust the pupil distance of one eye to meet the needs of different groups of people. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a trial glasses frame with adjustable monocular pupil distance according to the present invention;

[0023] Figure 2 This is a three-dimensional schematic diagram of the internal structure of a trial spectacle frame with adjustable monocular pupillary distance according to the present invention after the nose bridge is disassembled;

[0024] Figure 3 This is a schematic diagram of the disassembled three-dimensional structure of a planetary gear set of a trial spectacle frame with adjustable monocular pupillary distance according to the present invention;

[0025] Figure 4 This is a schematic cross-sectional view of the internal structure of the nose bridge of a trial spectacle frame with adjustable monocular pupillary distance according to the present invention;

[0026] Figure 5 for Figure 4 A schematic diagram of the structure at center A;

[0027] Figure 6 This is a schematic diagram of the overall three-dimensional structure of the lifting mechanism, rotating mechanism and nose pad of a trial glasses frame with adjustable monocular pupil distance of the present invention;

[0028] Figure 7 This is a schematic diagram of the overall three-dimensional structure of a lifting mechanism of a trial glasses frame with adjustable monocular pupil distance according to the present invention;

[0029] Figure 8 This is a schematic cross-sectional view of the overall structure of a guide seat of a trial spectacle frame with adjustable monocular pupil distance according to the present invention;

[0030] Figure 9 This is a three-dimensional schematic diagram of the overall structure of a clamping seat of a trial glasses frame with adjustable monocular pupil distance according to the present invention;

[0031] Figure 10 The utility model is a schematic diagram of the cross-sectional structure of the rotating mechanism and the nose pad of a trial glasses frame with adjustable monocular pupil distance.

[0032] [Description of Reference Numerals]

[0033] 1: Frame; 2: Nose bridge; 21: Installation space; 22: Viewport; 3: Adjustment mechanism; 31: First gear; 32: Transmission assembly; 321: Second gear; 322: First transmission shaft; 323: Planetary gear set; 3231: Housing; 3232: Ring gear; 3233: Sun gear; 3234: Planetary gear; 324: Second transmission shaft; 325: Third gear; 326: First rack; 33: Locking assembly; 331: Telescopic rod; 332: Locking block; 333: First locking portion; 3331: Lock Fixed rod; 3332: Limiting plate; 3333: First elastic member; 334: First handle; 4: Lifting mechanism; 41: Guide seat; 411: Activity space; 412: Moving space; 42: Second rack; 43: Fourth gear; 44: Second locking portion; 441: Push rod; 442: Push plate; 443: Second elastic member; 444: Second handle; 445: Snap seat; 4451: Slot; 5: Rotating mechanism; 51: Rotating plate; 52: Ear plate; 53: Fixed axis; 6: Nose pad; 7: Mounting rod. DETAILED DESCRIPTION

[0034] To better understand the above technical solution, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. Rather, these embodiments are provided to enable a clearer and more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0035] Example 1

[0036] like Figures 1-10 As shown, a trial glasses frame with adjustable monocular pupil distance in this embodiment includes two glasses frames 1, a nose bridge 2 for connecting the two glasses frames 1, and a frame adjustment mechanism 3.

[0037] Specifically, the nose bridge 2 is internally provided with a mounting space 21, and the adjusting frame mechanism 3 is mounted in the mounting space 21. The adjusting frame mechanism 3 comprises a first gear 31, a transmission assembly 32 and a locking assembly 33. The first gear 31 penetrates through the nose bridge 2 and is rotatably mounted on the nose bridge 2. The transmission assembly 32 is vertically arranged in the mounting space 21, and the top of the transmission assembly 32 is engaged with the first gear 31. One end of the bottom of the transmission assembly 32 is arranged in the interior of the nose bridge 2, and the other end is connected with an adjacent spectacle frame 1. The first gear 31 can rotate to drive the transmission assembly 32 to move the spectacle frame 1 laterally towards or away from the nose bridge 2. The top of the locking assembly 33 is connected with the bottom of the transmission assembly 32, and the bottom of the locking assembly 33 penetrates through the bottom wall of the nose bridge 2 to fix the transmission assembly 32. By arranging the adjusting frame mechanism 3, and the adjusting frame mechanism 3 comprising the first gear 31, the transmission assembly 32 and the locking assembly 33, the position of the spectacle frame 1 can be accurately adjusted. That is, the rotation of the first gear 31 drives the transmission assembly 32 to work, and then the spectacle frame 1 moves laterally, so as to adjust the monocular pupil distance. The applicability of the trial frame is greatly enhanced, and the pupil distance requirements of different users are met. Even if the pupil distances of the two eyes of the same person are different, the pupil distance can be adjusted one by one. Moreover, by arranging the locking assembly 33, the transmission assembly 32 can be locked, so as to fix the position of the current spectacle frame 1 when the pupil distance is determined, to avoid the change of the pupil distance during wearing the trial frame. The operation is simple, and the cost is reduced. Preferably, the adjusting frame mechanism 3 is provided with two, and the two adjusting frame mechanisms 3 are mounted in the mounting holes and staggered and opposite in direction. The two spectacle frames 1 can be adjusted in pupil distance, so that the user can use more conveniently, and the trial frame can be more stable during use.

[0038] Further, the transmission assembly 32 comprises a second gear 321, a first transmission shaft 322, a planetary gear set 323, a second transmission shaft 324, a third gear 325 and a first rack 326. The second gear 321 is fixedly sleeved on the outer wall of the first transmission shaft 322, and the top of the first transmission shaft 322 is rotatably connected with the top wall of the mounting space 21. The second gear 321 is engaged with the first gear 31. The bottom of the first transmission shaft 322, the planetary gear set 323, the second transmission shaft 324 and the third gear 325 are connected in sequence from top to bottom. The first rack 326 is transversely arranged in the mounting space 21, and one end of the first rack 326 is arranged in the mounting space 21, and the other end passes through the side wall of the nose bridge 2 and is connected with the side wall of one of the spectacle frames 1. The first rack 326 is engaged with the third gear 325. The first gear 31 can drive the second gear 321 to rotate, so that the first transmission shaft 322, the planetary gear set 323, the second transmission shaft 324 and the third gear 325 rotate synchronously with the rotation of the second gear 321, so as to drive the first rack 326 to move transversely, thereby driving the spectacle frame 1 to move towards the direction of approaching or moving away from the nose bridge 2. By arranging the second gear 321, the first transmission shaft 322, the planetary gear set 323, the second transmission shaft 324, the third gear 325 and the first rack 326, the rotation of the first gear 31 can be efficiently and stably transmitted to the first rack 326, thereby driving the spectacle frame 1 to move. The engagement between the first rack 326 and the third gear 325 makes the movement amount of the spectacle frame 1 and the rotation angle of the first gear 31 form a direct linear relationship, which makes the adjustment of the interpupillary distance more fine and controllable. Moreover, it also significantly improves the mechanical strength and durability of the transmission assembly 32, and can maintain good transmission efficiency and stability even in the case of frequent use and long-term operation, while also reducing the loss in the energy conversion process, so that the operator needs less force when adjusting the interpupillary distance, and the operation is more relaxed and labor-saving. The top of the locking assembly 33 is connected with the bottom of the third gear 325, which can lock or unlock the third gear 325.

[0039] Further, the planetary gear set 323 comprises a housing 3231, a ring gear 3232, a sun gear 3233 and a plurality of planet gears 3234. The sun gear 3233 and the plurality of planet gears 3234 are both arranged inside the housing 3231, the axis of the sun gear 3233 is the same as the axis of the housing 3231, the ring gear 3232 is mounted on the inner wall of the housing 3231, the bottom of the first transmission shaft 322 is connected with the top of the sun gear 3233 through the top of the housing 3231, and the axis of the first transmission shaft 322 is the same as the axis of the sun gear 3233, the plurality of planet gears 3234 are arranged between the sun gear 3233 and the ring gear 3232 respectively, and the plurality of planet gears 3234 are all engaged with the ring gear 3232 and the sun gear 3233. The top of the second transmission shaft 324 is connected with the plurality of planet gears 3234 one by one through a plurality of mounting rods 7, so that the first transmission shaft 322 drives the sun gear 3233 to rotate, the plurality of planet gears 3234 rotate around the axis of the sun gear 3233 in the circumferential direction with the rotation of the sun gear 3233, so that the mounting rod 7 drives the second transmission shaft 324 to rotate around its own axis with the circumferential rotation of the plurality of planet gears 3234, and then the third gear 325 drives the first rack 326 to move horizontally, so as to drive one spectacle frame 1 to move horizontally. By arranging the sun gear 3233, the ring gear 3232 and the plurality of planet gears 3234, the rotational speed of the first transmission shaft 322 can be reduced, so that the single-eye pupil distance can be adjusted more accurately, and the accuracy of the try-on frame is improved. By arranging the telescopic rod 331, the locking block 332 and the locking part, a stable locking structure is formed, which ensures that the spectacle frame 1 will not move accidentally after being adjusted to the ideal position, and the accuracy and reliability of the try-on process are improved.

[0040] Further, the locking assembly 33 comprises a telescopic rod 331, a locking block 332 and two first locking parts 333. The bottom of the third gear 325 is connected with the telescopic rod 331 and the locking block 332 in sequence from top to bottom, the bottom of the locking block 332 penetrates through the bottom wall of the nose bridge 2, and the top of the locking block 332 can have a spacing with the bottom wall of the nose bridge 2. The two first locking parts 333 are both arranged inside the nose bridge 2 and are arranged in mirror image with the axis of the locking block 332, and the two first locking parts 333 can abut against the locking block 332. By arranging the telescopic rod 331, the locking block 332 and the two first locking parts 333 respectively, the locking block 332 can be freely switched between the adjusting state and the locking state. When adjusting the pupil distance, the locking block 332 moves downward and keeps a certain spacing with the bottom wall of the nose bridge 2, which does not affect the rotation of the third gear 325 and the movement of the first rack 326; when locking is needed, the locking block 332 moves upward and the first locking part 333 abuts against the outer wall of the locking block 332, so as to form a stable locking state, which is easy to operate and quick to switch.

[0041] Further, the first locking part 333 comprises a locking rod 3331, a limiting plate 3332, a first elastic member 3333 and a first handle 334.

[0042] Specifically, a locking space is arranged on both sides of the locking block 332 and inside the nose bridge 2, the locking space is arranged along the length direction of the nose bridge 2, the locking rod 3331 is located in the locking space and can pass through the locking space to abut against the locking block. The first elastic member 3333 is located in the locking space and one end of the first elastic member 3333 abuts against the inner wall of the side of the locking space away from the locking block 332, and the other end of the first elastic member 3333 abuts against one end of the locking rod 3331 away from the locking block 332. By arranging the locking rod 3331 and the first elastic member 3333, the abutment and release of the locking block 332 can be achieved, that is, when locked, the locking rod 3331 always abuts against the outer wall of the locking block 332 due to the action of the first elastic member 3333, so that the locking block 332 is more stable when locked; when unlocked, the locking block 332 is only needed to be moved downward, so that the first elastic member 3333 is compressed, and the locking rod 3331 is thus retracted until the locking block 332 has a gap with the bottom wall of the nose bridge 2, and the locking rod 3331 is reset due to the elastic force of the first elastic member 3333. The limiting plate 3332 is fixedly sleeved on the outer wall of the locking rod 3331, and the side wall of the limiting plate 3332 close to the locking block 332 can abut against the inner wall of the side of the locking space close to the locking block 332, which can limit the extension direction of the locking rod 3331. The first handle 334 is fixedly installed on the outer wall of the locking block 332 and always has a gap with the bottom wall of the nose bridge 2, which can make the user more comfortable when unlocking.

[0043] Further, an annular groove is arranged on the outer wall of the locking block 332, and correspondingly, one end of the locking rod 3331 close to the locking block 332 is arc-shaped to adapt to the annular groove.

[0044] Further, a scale is arranged on the side wall of the first rack 326 away from the third gear 325, and a sight hole 22 is arranged on the nose bridge 2 and can correspond to each number in the scale respectively with the movement of the first rack 326, which can ensure the high accuracy of the pupil distance adjustment, so that the user can accurately control the movement distance of the spectacle frame 1 according to the scale number aligned by the sight hole 22, that is, adjust the pupil distance, and avoid the error caused by rough estimation.

[0045] Further, the single-eye pupil distance adjustable trial spectacle frame of the embodiment further comprises a lifting mechanism 4, a rotating mechanism 5 and a nose pad 6.

[0046] The lifting mechanism 4 is vertically installed on one side wall of the nose bridge 2, and the bottom of the lifting mechanism 4 is connected with the nose pad 6 through the rotating mechanism 5. The lifting mechanism 4 can drive the rotating mechanism 5 and the nose pad 6 to lift simultaneously, and the rotating mechanism 5 can drive the nose pad 6 to rotate axially, which realizes independent adjustment of the height and angle of the nose pad 6, meets the diversified needs of different users' facial profiles, and improves the comfort and personalized experience of trial wearing.

[0047] Further, the lifting mechanism 4 comprises a guide seat 41, a second rack 42, a fourth gear 43 and a second locking part 44. The guide seat 41 is concave, the second rack 42 is inserted into the guide seat 41, one side wall of the guide seat 41 is provided with a through hole, the fourth gear 43 is rotatably installed in the through hole and the fourth gear 43 is engaged with the second rack 42. The second locking part 44 is installed on the side wall of the guide seat 41 opposite to the through hole. Through the engagement of the second rack 42 and the fourth gear 43, and the locking of the second locking part 44 to the second rack 42, the accuracy and stability of the height adjustment of the nose pad 6 are ensured. The operator can easily and accurately drive the lifting of the nose pad 6, avoiding the inaccuracy and inconvenience of traditional manual adjustment. The second locking part 44 can abut against the side wall of the second rack 42 through the side wall of the guide seat 41, so as to form an effective locking structure, which ensures that the nose pad 6 will not move accidentally after being adjusted to the ideal position, and improves the safety and reliability of the trial wearing process.

[0048] Further, the second locking part 44 comprises an abutting rod 441, an abutting plate 442, a second elastic piece 443, a second handle 444 and a clamping seat 445.

[0049] Specifically, the side inner part of the guide seat 41 is respectively provided with an axial same movable space 411 and a moving space 412, the movable space 411 and the moving space 412 are connected and communicated, the outer contour of the movable space 411 is larger than that of the moving space 412. The abutting rod 441 is respectively arranged in the movable space 411 and the moving space 412, the abutting plate 442 is installed at one end of the abutting rod 441 close to the second rack 42, the second elastic member 443 is sleeved on the outer wall of the abutting rod 441 and located in the movable space 411, the two ends of the second elastic member 443 respectively abut against the abutting plate 442 and the inner wall of the movable space 411, the abutting plate 442 can abut against the side wall of the second rack 42 due to the second elastic member 443, which forms a stable locking structure, ensures that the nose pad 6 will not move accidentally after being adjusted to the ideal height, and improves the safety and reliability of the trial process. The second handle 444 is connected with the end of the abutting rod 441 away from the abutting plate 442, so that the operator can easily drive the movement of the abutting rod 441, thereby changing the locking state of the abutting plate 442 to the second rack 42. By arranging the second elastic member 443, after the second handle 444 is released, the abutting rod 441 and the abutting plate 442 can automatically reset and abut against the second rack 42, forming a locking state. The clamping seat 445 is installed on the side wall of the guide seat 41, the clamping seat 445 is provided with a clamping groove 4451, and the second handle 444 can be located in the clamping groove 4451, so that when the abutting plate 442 abuts against the second rack 42, the second handle 444 can be clamped in the clamping groove 4451 due to the action of the clamping groove 4451, avoiding the relative rotation of the second handle 444. At the same time, when the fourth gear 43 needs to drive the vertical movement of the second rack 42, the second handle 444 can be separated from the clamping groove 4451 and clamped with the end of the clamping seat 445 away from the guide seat 41, so that the abutting plate 442 does not contact the second rack 42, thereby avoiding the user from always pulling the handle to make the abutting plate 442 contact the second rack 42, making the operation more convenient. When the second rack 42 needs to be locked, the second handle 444 is separated from the end of the clamping seat 445 away from the guide seat 41, and then the second handle 444 is aligned with the clamping groove 4451 and clamped into the clamping groove 4451, so that the abutting plate 442 abuts against the second rack 42, thereby realizing the locking of the second rack 42 and avoiding the movement of the second rack 42. Preferably, the side of the abutting plate 442 close to the second rack 42 is provided with an anti-skid pad, so that the abutting plate 442 can increase the friction when abutting and locking the second rack 42, so that the locking is more stable.

[0050] Further, the rotating mechanism 5 comprises a rotating plate 51, two ear plates 52 and a fixed shaft 53. The two ear plates 52 are respectively installed on the two ends of the bottom of the second rack 42, the two ends of the fixed shaft 53 are respectively connected with the two ear plates 52, one end of the rotating plate 51 is rotatably installed on the fixed shaft 53, and the other end of the rotating plate 51 is fixedly connected with the nose pad 6. It can make the nose pad 6 rotate circumferentially around the fixed shaft 53, so as to adapt to the difference of the facial profile of different users.

[0051] Through the above structure, the working principle of the trial frame with adjustable monocular pupil distance of the embodiment is as follows:

[0052] As shown in Figures 1-10 , the pupil distance of each person is different, and even the monocular pupil distance of the same person is different. Therefore, when the user wears the trial frame, the pupil distance of the initial state of the trial frame needs to be adjusted.

[0053] Firstly, the first handle 334 is pulled to vertically move the locking block 332 and extend the telescopic rod 331, so that the locking rod 3331 is separated from the annular groove on the locking block 332, and the third gear 325 is in a rotatable state. Then, according to the pupil distance of the user, the first gear 31 is manually turned to drive the second gear 321 to rotate, so that the first transmission shaft 322 and the sun gear 3233 are synchronously rotated. When the sun gear 3233 rotates, it drives the plurality of planetary gears 3234 to rotate around the axis of the sun gear 3233 and along the gear ring 3232. Due to the action of the mounting rod 7, the plurality of planetary gears 3234 drive the second transmission shaft 324 to rotate, and then the third gear 325 is synchronously rotated, so that the third gear 325 drives the first rack 326 to move horizontally, and then drives the mirror frame 1 to move horizontally, so as to change the monocular pupil distance. Since the viewing hole 22 is arranged on the outer wall of the nose bridge 2, and the first rack 326 is provided with a scale, it can make the user more convenient and clear when observing the pupil distance at this time. When the scale corresponding to the viewing hole 22 reaches the specified scale, the first gear 31 is immediately stopped, and the first handle 334 is pulled to move upward, so that the locking rod 3331 abuts against the annular groove on the locking block 332, so that the locking block 332 is fixedly not moved, and at the same time, the first rack 326 cannot move horizontally, that is, the locking of the pupil distance is completed. The adjustment of the pupil distance of the other mirror frame 1 is the same as the above process, which will not be described here.

[0054] When the interpupillary distance is adjusted, the second handle 444 is pulled, the second handle 444 is clamped at the end of the clamping seat 445 away from the guide seat 41, and the second rack 42 is in an active state. Then, the fourth gear 43 is rotated, the second rack 42 is vertically moved, the rotating mechanism 5 and the nose pad 6 are vertically moved, and the nose pad 6 is adapted to the contour of the nose of the user. When the nose pad 6 reaches the specified position, the fourth gear 43 is immediately stopped, the second handle 444 is pulled, the second handle 444 is aligned with the clamping groove 4451, the second handle 444 is released, the second handle 444 is clamped in the clamping groove 4451 due to the action of the second elastic member 443, the abutting plate 442 abuts against the second rack 42, and the anti-skid pad increases the friction between the abutting plate 442 and the second rack 42, and the locking of the second rack 42 is sequentially completed. Finally, the nose pad 6 is rotated around the axis line of the fixed shaft 53, so that the nose pad 6 is adapted to the angle of the nose. Thus, the interpupillary distance adjustment of the trial frame is completed.

[0055] When other people wear the trial frame, the operation is continuously performed according to the above working process to adjust the monocular interpupillary distance, which is not described here.

[0056] In the description of the present application, it should be understood that the terms "first", "second" are only used for description purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included one or more features. In the description of the present application, the meaning of "multiple" is two or more than two, unless otherwise specifically limited.

[0057] In the present application, unless otherwise specifically defined and limited, the terms "installation", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrated; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium; it can be the communication between two elements or the interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0058] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact through an intermediate medium. Moreover, the first feature is "above", "over" and "on" the second feature, which can be directly above or obliquely above the first feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature is "below", "under" and "under" the second feature, which can be directly below or obliquely below the first feature, or only indicates that the horizontal height of the first feature is lower than that of the second feature.

[0059] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "embodiment", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are contained in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or features of different embodiments or examples described in the present application without contradiction.

[0060] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the present application. Those skilled in the art can modify, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A trial glasses frame with adjustable monocular pupil distance, comprising two glasses frames (1) and a nose bridge (2) for connecting the two glasses frames (1), characterized in that: Also includes a frame adjustment mechanism (3); An installation space (21) is provided inside the nose bridge (2), and the nose adjustment mechanism (3) is installed in the installation space (21); The frame adjustment mechanism (3) comprises a first gear (31), a transmission assembly (32) and a locking assembly (33), wherein the first gear (31) passes through the nose bridge (2) and is rotatably mounted on the nose bridge (2), the transmission assembly (32) is vertically arranged in the mounting space (21) and the top of the transmission assembly (32) is engaged with the first gear (31), one end of the bottom of the transmission assembly (32) is placed inside the nose bridge (2), and the other end is connected to an adjacent one of the glasses frames (1), and the first gear (31) is rotatable so that the transmission assembly (32) drives the glasses frame (1) to move laterally toward or away from the nose bridge (2); The top of the locking assembly (33) is connected to the bottom of the transmission assembly (32), and the bottom of the locking assembly (33) passes through the bottom wall of the nose bridge (2) to fix the transmission assembly (32).

2. The trial glasses frame with adjustable monocular pupil distance according to claim 1, characterized in that: The transmission assembly (32) includes a second gear (321), a first transmission shaft (322), a planetary gear set (323), a second transmission shaft (324), a third gear (325) and a first rack (326); The second gear (321) is fixedly sleeved on the outer wall of the first transmission shaft (322) and the top of the first transmission shaft (322) is rotatably connected to the top wall of the installation space (21). The second gear (321) is meshed with the first gear (31). The bottom of the first transmission shaft (322), the planetary gear set (323), the second transmission shaft (324) and the third gear (325) are connected in sequence from top to bottom. The first rack (326) is horizontally arranged in the installation space (21) and one end of the first rack (326) is placed in the installation space (21). The other end passes through the side wall of the nose bridge (2) and is connected to the side wall of one of the spectacle frames (1); the first rack (326) is meshed with the third gear (325); the first gear (31) can drive the second gear (321) to rotate, so that the first transmission shaft (322), the planetary gear set (323), the second transmission shaft (324) and the third gear (325) rotate synchronously with the rotation of the second gear (321), so as to drive the first rack (326) to move laterally, thereby driving one of the spectacle frames (1) to move toward or away from the nose bridge (2); The top of the locking assembly (33) is connected to the bottom of the third gear (325).

3. The trial glasses frame with adjustable monocular pupil distance according to claim 2, characterized in that: The planetary gear set (323) includes a housing (3231), a ring gear (3232), a sun gear (3233) and a plurality of planetary gears (3234); The sun gear (3233) and the plurality of planetary gears (3234) are both placed inside the housing (3231), the axis of the sun gear (3233) is the same as the axis of the housing (3231), the ring gear (3232) is mounted on the inner wall of the housing (3231), the bottom of the first transmission shaft (322) passes through the top of the housing (3231) and is connected to the top of the sun gear (3233), and the axis of the first transmission shaft (322) is the same as the axis of the sun gear (3233), the plurality of planetary gears (3234) are respectively placed between the sun gear (3233) and the ring gear (3232), and the plurality of planetary gears (3234) are all meshed with the ring gear (3232) and the sun gear (3233); The top of the second transmission shaft (324) is connected to the multiple planetary gears (3234) in a one-to-one correspondence through multiple mounting rods (7), so that the first transmission shaft (322) drives the sun gear (3233) to rotate, and the multiple planetary gears (3234) rotate circumferentially around the axis of the sun gear (3233) as the sun gear (3233) rotates, so that the mounting rod (7) drives the second transmission shaft (324) to rotate around its own axial direction as the multiple planetary gears (3234) rotate circumferentially, and then the third gear (325) drives the first rack (326) to move laterally, so as to drive one of the mirror frames (1) to move laterally.

4. The trial glasses frame with adjustable monocular pupil distance according to claim 2, characterized in that: The locking assembly (33) comprises a telescopic rod (331), a locking block (332) and two first locking parts (333); The bottom of the third gear (325) is coaxially connected to the telescopic rod (331) and the locking block (332) in sequence from top to bottom, the bottom of the locking block (332) passes through the bottom wall of the nose bridge (2) and a gap can be formed between the top of the locking block (332) and the bottom wall of the nose bridge (2); The two first locking portions (333) are both installed inside the nose bridge (2) and the two first locking portions (333) are arranged relative to each other with the axis of the locking block (332) being mirror images, and the two first locking portions (333) are capable of abutting against the locking block.

5. The trial glasses frame with adjustable monocular pupil distance according to claim 4, characterized in that: The first locking portion (333) comprises a locking rod (3331), a limiting plate (3332), a first elastic member (3333) and a first handle (334); Locking spaces are provided on both sides of the locking block (332) and inside the nose bridge (2), the locking spaces being arranged along the length direction of the nose bridge (2), the locking rod (3331) being located in the locking spaces and being able to pass through the locking spaces to abut against the locking block; The limiting plate (3332) is fixedly sleeved on the outer wall of the locking rod (3331), and the side wall of the limiting plate (3332) close to the locking block (332) can abut against the inner wall of the locking space close to the locking block (332); The first elastic member (3333) is located in the locking space, and one end of the first elastic member (3333) abuts against the inner wall of the locking space on a side away from the locking block (332), and the other end of the first elastic member (3333) abuts against one end of the locking rod (3331) away from the locking block (332); The first handle (334) is fixedly mounted on the outer wall of the locking block (332), and a gap is always formed between the first handle (334) and the bottom wall of the nose bridge (2).

6. The trial glasses frame with adjustable monocular pupil distance according to claim 2, characterized in that: A scale is provided on a side wall of the first rack (326) away from the third gear (325), and a viewing hole (22) is provided on the nose bridge (2), and the viewing hole (22) can correspond to each number on the scale as the first rack (326) moves.

7. The trial glasses frame with adjustable monocular pupil distance according to claim 1, characterized in that: It also includes a lifting mechanism (4), a rotating mechanism (5) and a nose pad (6); The lifting mechanism (4) is vertically mounted on a side wall of the nose bridge (2), and the bottom of the lifting mechanism (4) is connected to the nose pad (6) via the rotating mechanism (5); The lifting mechanism (4) can drive the rotating mechanism (5) and the nose pad (6) to rise and fall simultaneously, and the rotating mechanism (5) can drive the nose pad (6) to rotate axially.

8. The trial glasses frame with adjustable monocular pupil distance according to claim 7, characterized in that: The lifting mechanism (4) includes a guide seat (41), a second rack (42), a fourth gear (43) and a second locking portion (44); The guide seat (41) is concave-shaped, the second rack (42) is inserted into the guide seat (41), a through hole is provided on one side wall of the guide seat (41), the fourth gear (43) is rotatably installed in the through hole and the fourth gear (43) is engaged with the second rack (42); The second locking portion (44) is mounted on a side wall of the guide seat (41) opposite to the through hole, and the second locking portion (44) can pass through the side wall of the guide seat (41) and abut against the side wall of the second rack (42).

9. The trial glasses frame with adjustable monocular pupil distance according to claim 8, characterized in that: The second locking portion (44) comprises a push rod (441), a push plate (442), a second elastic member (443), a second handle (444) and a clamping seat (445); An activity space (411) and a movement space (412) having the same axial direction are respectively provided inside the side of the guide seat (41), the activity space (411) and the movement space (412) are connected and communicated, and the outer contour of the activity space (411) is larger than the outer contour of the movement space (412); The push rod (441) is respectively placed in the active space (411) and the moving space (412), the push plate (442) is installed on one end of the push rod (441) close to the second rack (42), the second elastic member (443) is sleeved on the outer wall of the push rod (441) and the second elastic member (443) is located in the active space (411), the two ends of the second elastic member (443) are respectively in contact with the push plate (442) and the inner wall of the active space (411), and the push plate (442) can be pressed against the side wall of the second rack (42) due to the second elastic member (443); The second handle (444) is connected to an end of the push rod (441) away from the push plate (442); The clamping seat (445) is installed on the side wall of the guide seat (41), and a clamping groove (4451) is provided on the clamping seat (445), and the second handle (444) can be located in the clamping groove (4451).

10. The trial glasses frame with adjustable monocular pupil distance according to claim 9, characterized in that: The rotating mechanism (5) comprises a rotating plate (51), two ear plates (52) and a fixed shaft (53); The two ear plates (52) are respectively mounted on the two ends of the bottom of the second rack (42), the two ends of the fixed shaft (53) are respectively connected to the two ear plates (52), one end of the rotating plate (51) is rotatably mounted on the fixed shaft (53), and the other end of the rotating plate (51) is fixedly connected to the nose pad (6).

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