Progressive multifocal lens fitting experience frame

Abstract

The invention relates to a progressive multifocal lens fitting experience frame, and belongs to the technical field of lens fitting. Comprising an interpupillary distance adjusting mechanism used for adjusting the interpupillary distance corresponding to fitting mirror frames on the two sides of the whole fitting experience frame, the two fitting mirror frames are symmetrically and fixedly welded to the two sides of the interpupillary distance adjusting mechanism and used for installing lenses with different luminosities, and a clamping mechanism is further connected to the middle position of the interpupillary distance adjusting mechanism. The clamping device is used for clamping the whole fitting experience frame on glasses of a fitting person; the interpupillary distance adjusting mechanism comprises an adjusting mechanism middle layer clamped in the middle, a metal cover plate and an interpupillary distance marking bottom plate are arranged on the upper surface and the lower surface of the adjusting mechanism middle layer respectively, and the middle layer, the interpupillary distance marking bottom plate and the metal cover plate are fixedly connected into a whole through locking screws.

Description

Technical Field

[0001] The invention relates to a progressive multifocal lens fitting experience frame, belonging to the technical field of lens fitting. Background Art

[0002] Lenses are transparent materials with one or more curved surfaces made of optical materials such as glass or resin. After polishing, they are often assembled with glasses frames to form glasses. They are used to correct the user's vision and obtain a clear field of vision.

[0003] We need to have our eyes tested before wearing glasses, but the current fitting experience is done by adding lenses to the frame multiple times, which is bulky and has average clarity. At the same time, two or more lenses need to be worn at the same time during the fitting experience, which will cause a significant deviation between the experience and the actual fitting effect. In addition, the pupil distance cannot be adjusted during the fitting experience. Even if it can be adjusted, its adjustment accuracy is poor, the adjustment range is small, and the durability is low, so it cannot be used for a long time.

[0004] In view of the above-mentioned defects, the present invention aims to create a progressive multifocal lens fitting experience frame to make it more valuable for industrial use. Summary of the invention

[0005] In order to solve the above technical problems, the purpose of the present invention is to provide a progressive multifocal lens fitting experience frame.

[0006] A progressive multifocal lens fitting experience frame of the present invention comprises an interpupillary distance adjustment mechanism for adjusting the interpupillary distances corresponding to fitting frames on both sides of the entire fitting experience frame, two fitting frames are symmetrically fixedly welded on both sides of the interpupillary distance adjustment mechanism for mounting lenses of different luminosity, and a clamping mechanism is further connected in the middle of the interpupillary distance adjustment mechanism for clamping the entire fitting experience frame on the glasses of the fitting personnel;

[0007] The pupil distance adjustment mechanism includes an adjustment mechanism intermediate layer sandwiched in the middle, and the upper and lower surfaces of the adjustment mechanism intermediate layer are respectively provided with a metal cover plate and a pupil distance marking base plate, and the intermediate layer, the pupil distance marking base plate and the metal cover plate are fixedly connected into a whole by locking screws.

[0008] Furthermore, the interpupillary distance adjustment mechanism includes an adjustment metal plate and two adjustment pull pieces slidably embedded therein, and a landing steel ball is provided between the adjustment metal plate and the adjustment pull piece; the landing steel ball is used to achieve smoothness and damping of the adjustment process of the adjustment pull piece, so that the interpupillary distance gear can be accurately adjusted; the interpupillary distance adjustment mechanism can adjust the geometric interpupillary distance range of 58 to 70 mm.

[0009] Furthermore, the adjusting metal plate is a rectangular plate-shaped structure, and two adjusting metal plate fixing holes are symmetrically provided at both ends of the upper part of the adjusting metal plate for assembling locking screws; the upper part of the adjusting metal plate is also symmetrically provided with two downward-pressing landing spring pieces, and the ends of the landing spring pieces are provided with concave semicircular steel ball grooves for accommodating landing steel balls, and the lower part of the adjusting metal plate is also symmetrically provided with two upward-pressing limit rods, and the ends of the limit rods are provided with limit hooks for preventing the adjusting pull piece from sliding outward, and a rectangular pull piece groove is formed between the landing spring piece and the limit rod for installing the adjusting pull piece, and two rectangular adjusting metal plate locking holes are symmetrically provided in the middle position of the lower part of the adjusting metal plate for installing the clamping mechanism;

[0010] A rectangular gear display slot is provided at the front end of the adjusting pull piece for observing and displaying the gear value of the adjusting pull piece. A wavy steel ball landing slot is provided at the edge of the adjusting pull piece close to the landing spring piece. The steel ball landing slot and the steel ball groove are matched with each other. There are 6 steel ball landing slots in total, corresponding to six pupil distances.

[0011] Furthermore, the surface of the pupil distance marking base plate is symmetrically engraved with 7 numbers from 0 to 6, which correspond to different gear spacings of the pupil distance respectively; metal cover fixing holes are symmetrically arranged at both ends of the metal cover plate, and the metal cover fixing holes and the adjustment metal plate fixing holes are matched to be arranged for assembling locking screws, and two gear display windows are symmetrically arranged in the middle position of the metal cover plate, and the gear display windows are matched to the digital gears engraved on the surface of the pupil distance marking base plate, and are used to display the gear position of the adjustment pull piece; two rectangular metal cover locking holes are symmetrically arranged in the middle position of the bottom of the metal cover plate, which are used to match the installation clamping mechanism.

[0012] Furthermore, the clamping mechanism comprises a clamping fixture and a clamping drive, and the clamping fixture and the clamping drive are elastically connected via a clamping connector, a spring mounting member and a clamping spring;

[0013] Two fixing locking heads are symmetrically arranged on the top of the clamping fixing part, and the fixing locking heads are matched with the locking holes of the adjusting metal plate and the locking holes of the metal cover plate. The fixing locking heads are inserted into the locking holes on the surface of the pupil distance marking base plate, the locking holes of the adjusting metal plate and the locking holes of the metal cover plate in sequence at the same time, and then the fixing locking heads are rotated by a small angle with a wrench to connect the middle layer, the pupil distance marking base plate and the metal cover plate into a whole, and at the same time, the clamping fixing part is fixedly connected to the pupil distance adjustment mechanism.

[0014] Furthermore, two vertical long strip connecting piece locking holes are symmetrically arranged in the middle part of the clamping fixture for inserting the clamping connector, and symmetrical fixing piece clamping supports are arranged on both sides of the clamping fixture. The surface of the fixing piece clamping support is provided with an ultra-thin silicone anti-slip cover with strong adhesion to improve the clamping stability.

[0015] Furthermore, a rectangular spring mounting locking hole is provided in the middle portion of the clamping connector for inserting the spring mounting part, a circular driving part socket hole is provided on the top of the clamping connector for socketing the clamping driving part, and a connector locking head is provided at the bottom of the clamping connector for vertically inserting into the connector locking hole for locking and fixing, thereby connecting and fixing the clamping connector and the clamping fixing part into a whole.

[0016] Furthermore, two spring mounting locking heads are symmetrically arranged at both ends of the spring mounting member, which are used to be inserted into the spring mounting locking hole for locking and fixing. A spring mounting hook is also arranged on the top of the spring mounting member, which is used to sleeve and install the clamping spring.

[0017] Furthermore, the clamping spring comprises a spring sleeve hole formed by winding, and a driving connection hook and a fixed abutment joint extend from both ends of the spring sleeve hole respectively, which are used to be hooked on the clamping driving member and abutted on the clamping fixing member respectively.

[0018] Furthermore, the clamping drive member includes a clamping hand handle located at the top, and symmetrically arranged clamping beams are provided on both sides of the clamping hand handle. A driving member clamping support is provided at the bottom of each clamping beam perpendicular to it, and the surface of the driving member clamping support is also provided with an ultra-thin silicone anti-slip cover with strong adhesion, which cooperates with the fixing member clamping support to improve the clamping stability.

[0019] By means of the above scheme, the present invention has at least the following advantages:

[0020] The entire fitting experience frame of the present invention is made of 2.5mm steel, which is ultra-thin, ultra-hard, ultra-light, and rust-proof. The integrated whole-plate cutting clip is tough and wear-resistant, the ultra-thin silicone anti-slip cover has strong adhesion, and the 6-speed pit positions cooperate with the steel ball movement, which has better damping effect and more accurate positioning. The pupil distance can be adjusted conveniently and quickly, the overall structure is beautiful, the ultra-thin design has a stronger fit with the lens, the fitting accuracy is higher, and the application prospects are broad.

[0021] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show a certain embodiment of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 It is a front view of the overall structure of the progressive multifocal lens fitting experience frame of the present invention;

[0024] Figure 2 It is a top view of the overall structure of the progressive addition lens fitting experience frame of the present invention;

[0025] Figure 3 It is a partial structural front view of the progressive multifocal lens fitting experience frame of the present invention;

[0026] Figure 4 It is a partial structural top view of the progressive addition lens fitting experience frame of the present invention;

[0027] Figure 5 It is a structural schematic diagram of the middle layer of the adjustment mechanism in the progressive addition lens fitting experience frame of the present invention;

[0028] Figure 6 It is a structural schematic diagram of an adjustment metal plate in a progressive addition lens fitting experience frame of the present invention;

[0029] Figure 7 It is a structural schematic diagram of adjusting the puller in the progressive addition lens fitting experience frame of the present invention;

[0030] Figure 8 It is a structural schematic diagram of a metal cover plate in a progressive multifocal lens fitting experience frame of the present invention;

[0031] Fig. 9 It is a structural schematic diagram of a clamping fixture in a progressive addition lens fitting experience frame of the present invention;

[0032] Fig.10 It is a structural schematic diagram of a clamping connector in a progressive addition lens fitting experience frame of the present invention;

[0033] Fig.11 It is a structural schematic diagram of a spring mounting member in a progressive addition lens fitting experience frame of the present invention;

[0034] Fig.12 It is a schematic diagram of the structure of the clamping spring in the progressive addition lens fitting experience frame of the present invention;

[0035] Fig.13 It is a structural schematic diagram of a clamping drive component in a progressive addition lens fitting experience frame of the present invention.

[0036] Among them, in the figure;

[0037] 1. Pupillary distance adjustment mechanism; 2. Clamping mechanism; 3. Fitting frame;

[0038] 11. Adjustment mechanism middle layer; 12. Pupillary distance marking bottom plate; 13. Metal cover plate; 14. Locking screw;

[0039] 21. Clamping fixing member; 22. Clamping driving member; 23. Clamping connecting member; 24. Spring mounting member; 25. Clamping spring;

[0040] 111. Adjusting metal plate; 112. Adjusting pull piece; 113. Positioning steel ball;

[0041] 1111, drop spring; 1112, steel ball groove; 1113, limit rod; 1114, limit hook; 1115, adjustment metal plate fixing hole; 1116, adjustment metal plate locking hole; 1117, pull-out groove;

[0042] 1121. Steel ball landing slot; 1122. Gear position display slot;

[0043] 131. Metal cover fixing hole; 132. Gear position display window; 133. Metal cover locking hole;

[0044] 211, fixing piece locking head; 212, connecting piece locking hole; 213, fixing piece clamping bracket;

[0045] 231, locking hole of spring mounting part; 232, socket hole of driving part; 233, locking head of connecting part;

[0046] 241. Spring mounting hook; 242. Spring mounting locking head;

[0047] 251, spring sleeve hole; 252, drive connecting hook; 253, fixed abutment;

[0048] 221, clamping handle; 222, clamping beam; 223, driving member clamping support. DETAILED DESCRIPTION

[0049] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0050] See also Figure 1 and Figure 2A progressive multifocal lens fitting experience frame according to a preferred embodiment of the present invention comprises an interpupillary distance adjustment mechanism 1, which is used to adjust the interpupillary distance corresponding to the fitting frames 3 on both sides of the entire fitting experience frame. Two fitting frames 3 are symmetrically fixedly welded on both sides of the interpupillary distance adjustment mechanism 1 for installing lenses of different luminosity. A clamping mechanism 2 is also connected in the middle of the interpupillary distance adjustment mechanism 1 for clamping the entire fitting experience frame on the glasses of the fitting personnel.

[0051] See also Figure 3 and Figure 4 The pupil distance adjustment mechanism 1 includes an adjustment mechanism intermediate layer 11 sandwiched in the middle, and the upper and lower surfaces of the adjustment mechanism intermediate layer 11 are respectively provided with a metal cover plate 13 and a pupil distance marking bottom plate 12, and the intermediate layer 11, the pupil distance marking bottom plate 12 and the metal cover plate 13 are fixedly connected into a whole by locking screws 14;

[0052] See also Figures 5 to 8 The interpupillary distance adjustment mechanism 1 includes an adjustment metal plate 111 and two adjustment pull pieces 112 slidably embedded therein. A positioning steel ball 113 is further provided between the adjustment metal plate 111 and the adjustment pull pieces 112. The positioning steel ball achieves smoothness and damping during the adjustment process of the adjustment pull pieces 112, so that the interpupillary distance position can be accurately adjusted.

[0053] The adjusting metal plate 111 is a rectangular plate-shaped structure. Two adjusting metal plate fixing holes 1115 are symmetrically arranged at both ends of the upper half of the adjusting metal plate 111 for assembling the locking screws 14. The upper half of the adjusting metal plate 111 is also symmetrically provided with two downwardly-pressed landing springs 1111. The ends of the landing springs 1111 are provided with concave semicircular steel ball grooves 1112 for accommodating the landing steel balls 113. Two upwardly-pressed limiting rods 1113 are symmetrically arranged, and limiting hooks 1114 are arranged at the ends of the limiting rods 1113 to prevent the adjusting pull piece 112 from sliding outwards. A rectangular pull piece groove 1117 is formed between the positioning spring piece 1111 and the limiting rods 1113 to install the adjusting pull piece 112. Two rectangular adjusting metal plate locking holes 1116 are symmetrically arranged in the middle of the lower half of the adjusting metal plate 111 to install the clamping mechanism 2.

[0054] A rectangular gear display slot 1122 is provided at the front end of the adjusting pull piece 112 for observing and displaying the gear value of the adjusting pull piece 112. A wave-shaped steel ball landing slot 1121 is provided at the edge of the adjusting pull piece 112 close to the landing spring piece 1111. The steel ball landing slot 1121 is matched with the steel ball slot 1112. There are 6 steel ball landing slots 1121, corresponding to six pupil distances.

[0055] The surface of the pupil distance marking base plate 12 is symmetrically engraved with 7 numbers from 0 to 6, which correspond to different gear spacings of the pupil distance respectively; the two ends of the metal cover plate 13 are symmetrically provided with metal cover plate fixing holes 131, the metal cover plate fixing holes 131 are matched with the adjustment metal plate fixing holes 1115, and are used to assemble the locking screws 14, and two gear display windows 132 are symmetrically arranged in the middle position of the metal cover plate 13, and the gear display windows 132 are matched with the digital gears engraved on the surface of the pupil distance marking base plate 12, and are used to display the gear position of the adjustment pull piece 112; the middle position of the bottom of the metal cover plate 13 is symmetrically provided with two rectangular metal cover plate locking holes 133, which are used to match the installation of the clamping mechanism 2;

[0056] See also Figures 9 to 13 The clamping mechanism 2 includes a clamping fixture 21 and a clamping drive 22, and the clamping fixture 21 and the clamping drive 22 are elastically connected via a clamping connector 23, a spring mounting member 24 and a clamping spring 25;

[0057] Two fixing locking heads 211 are symmetrically arranged on the top of the clamping fixing part 21, and the fixing locking heads 211 are matched with the adjusting metal plate locking holes 1116 and the metal cover plate locking holes 133. The fixing locking heads 211 are inserted into the locking holes on the surface of the pupil distance marking base plate 12, the adjusting metal plate locking holes 1116 and the metal cover plate locking holes 133 in sequence at the same time, and then the fixing locking heads 211 are rotated by a small angle with a wrench to connect the middle layer 11, the pupil distance marking base plate 12 and the metal cover plate 13 into a whole, and at the same time, the clamping fixing part 21 is fixedly connected to the pupil distance adjustment mechanism 1.

[0058] The middle part of the clamping fixture 21 is symmetrically provided with two vertical long strip-shaped connector locking holes 212 for inserting the clamping connector 23. The two sides of the clamping fixture 21 are provided with symmetrical fixing brackets 213. The surface of the fixing brackets 213 is provided with an ultra-thin silicone anti-slip cover with strong adhesion to improve the clamping stability.

[0059] A spring mounting locking hole 231 of a rectangular structure is provided in the middle part of the clamping connector 23 for inserting the spring mounting member 24. A circular driving member sleeve hole 232 is provided on the top of the clamping connector 23 for sleeve-engaging the clamping driving member 22. A connector locking head 233 is provided at the bottom of the clamping connector 23 for vertically inserting into the connector locking hole 212 for locking and fixing, so as to connect and fix the clamping connector 23 and the clamping fixing member 21 into a whole.

[0060] Two spring mounting member locking heads 242 are symmetrically arranged at both ends of the spring mounting member 24 for being inserted into the spring mounting member locking hole 231 for locking and fixing. A spring mounting hook 241 is also arranged at the top of the spring mounting member 24 for sleeve installation and clamping the spring 25.

[0061] The clamping spring 25 comprises a spring sleeve hole 251 formed by winding, and a driving connection hook 252 and a fixing abutment head 253 are extended from both ends of the spring sleeve hole 251, respectively, for hooking on the clamping driving member 22 and abutting on the clamping fixing member 21;

[0062] The clamping driving member 22 includes a clamping hand grip 221 at the top, and symmetrically arranged clamping cross beams 222 are arranged on both sides of the clamping hand grip 221. A driving member clamping support 223 is arranged perpendicular to the bottom of each clamping cross beam 222. The surface of the driving member clamping support 223 is also provided with an ultra-thin silicone anti-slip cover with strong adhesion, which can cooperate with the fixing member clamping support 213 to improve the clamping stability;

[0063] The interpupillary distance adjustment mechanism 1 can adjust the geometric interpupillary distance in the range of 58 to 70 mm.

[0064] The working principle of the present invention is as follows:

[0065] When assembling the progressive multifocal lens fitting experience frame of the present invention, firstly, the middle layer 11, the pupil distance marking base plate 12 and the metal cover plate 13 are completely overlapped according to the corresponding settings, and then the fixing locking head 211 is inserted into the locking hole on the surface of the pupil distance marking base plate 12, the metal plate locking hole 1116 and the metal cover plate locking hole 133 are adjusted, and then the fixing locking head 211 is rotated by a small angle with a wrench to connect the middle layer 11, the pupil distance marking base plate 12 and the metal cover plate 13. The clamping fixture 21 is fixedly connected to the interpupillary distance adjustment mechanism 1, and then the spring mounting locking hole 231 in the middle part of the two clamping connectors 23 is inserted from the position of the driving member clamping support 223 of the clamping driving member 22 to the clamping crossbeam 222, and then the connecting member locking head 233 of the clamping connector 23 is vertically inserted into the connecting member locking hole 212, and a wrench is used to rotate a small angle to lock and fix, and the clamping connector 23 and the clamping fixture 21 are connected and fixed. The spring mounting member 24 is fixed as a whole; then the spring mounting member locking heads 242 at both ends of the spring mounting member 24 are inserted into the spring mounting member locking holes 231 and locked and fixed; finally, the clamping spring 25 is sleeved on the spring mounting hook 241, and the driving connecting hook 252 and the fixing abutment head 253 are hooked on the clamping driving member 22 and connected to the clamping fixing member 21 to complete the assembly. When in use, the fitting experience frame with the corresponding light-power lens installed is directly clamped on the glasses of the fitting personnel, and then Pull the adjustment pull tab 112 to the appropriate pupil distance position to perform lens fitting. The entire fitting experience frame is made of 2.5mm steel, which is ultra-thin, ultra-hard, ultra-light, and rust-proof. The one-piece whole-plate cutting clip is tough and wear-resistant, and the ultra-thin silicone anti-slip cover has strong adhesion. The 6-speed pit positions cooperate with the steel ball movement, which has better damping effect and more accurate positioning. The pupil distance can be adjusted quickly and conveniently. The overall structure is beautiful, the ultra-thin design fits the lens better, the fitting accuracy is higher, and the application prospects are broad.

[0066] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the technical principles of the present invention, and these improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A progressive multifocal lens fitting experience frame, characterized by: It includes an interpupillary distance adjustment mechanism, which is used to adjust the interpupillary distances corresponding to the fitting frames on both sides of the entire fitting experience frame. Two fitting frames are symmetrically fixed and welded on both sides of the interpupillary distance adjustment mechanism, which are used to install lenses of different light powers. A clamping mechanism is also connected in the middle of the interpupillary distance adjustment mechanism, which is used to clamp the entire fitting experience frame on the glasses of the fitting personnel. The pupil distance adjustment mechanism includes an adjustment mechanism intermediate layer sandwiched in the middle, and the upper and lower surfaces of the adjustment mechanism intermediate layer are respectively provided with a metal cover plate and a pupil distance marking base plate, and the intermediate layer, the pupil distance marking base plate and the metal cover plate are fixedly connected into a whole by locking screws.

2. A progressive addition lens fitting experience frame according to claim 1, characterized in that: The interpupillary distance adjustment mechanism comprises an adjustment metal plate and two adjustment pull pieces slidably embedded therein, and a positioning steel ball is further arranged between the adjustment metal plate and the adjustment pull pieces; the interpupillary distance adjustment mechanism can adjust the geometric interpupillary distance in the range of 58 to 70 mm.

3. A progressive addition lens fitting experience frame according to claim 2, characterized in that: The adjusting metal plate is a rectangular plate-shaped structure, and two adjusting metal plate fixing holes are symmetrically provided at both ends of the upper part of the adjusting metal plate for assembling locking screws; the upper part of the adjusting metal plate is also symmetrically provided with two downward-pressing landing spring pieces, and the ends of the landing spring pieces are provided with concave semicircular steel ball grooves for accommodating landing steel balls; the lower part of the adjusting metal plate is also symmetrically provided with two upward-pressing limit rods, and the ends of the limit rods are provided with limit hooks for preventing the adjusting pull piece from sliding outwards, and a rectangular pull piece groove is formed between the landing spring piece and the limit rod for installing the adjusting pull piece, and two rectangular adjusting metal plate locking holes are symmetrically provided in the middle position of the lower part of the adjusting metal plate for installing the clamping mechanism; A rectangular gear display slot is provided at the front end of the adjusting pull piece for observing and displaying the gear value of the adjusting pull piece. A wavy steel ball landing slot is provided at the edge of the adjusting pull piece close to the landing spring piece. The steel ball landing slot and the steel ball groove are matched with each other. There are 6 steel ball landing slots in total, corresponding to six pupil distances.

4. A progressive addition lens fitting experience frame according to claim 1, characterized in that: The surface of the pupil distance marking base plate is symmetrically engraved with 7 numbers from 0 to 6, which correspond to different gear spacings of the pupil distance respectively; metal cover fixing holes are symmetrically arranged at both ends of the metal cover plate, and the metal cover fixing holes are matched with the adjustment metal plate fixing holes for assembling locking screws, and two gear display windows are symmetrically arranged in the middle position of the metal cover plate, and the gear display windows are matched with the digital gears engraved on the surface of the pupil distance marking base plate, and are used to display the gear position of the adjustment pull piece; two rectangular metal cover locking holes are symmetrically arranged in the middle position of the bottom of the metal cover plate, which are used to match the installation clamping mechanism.

5. The progressive addition lens fitting experience frame according to claim 1, characterized in that: The clamping mechanism comprises a clamping fixture and a clamping drive, wherein the clamping fixture and the clamping drive are elastically connected via a clamping connector, a spring mounting member and a clamping spring; Two fixing member locking heads are symmetrically arranged on the top of the clamping fixing member, and the fixing member locking heads are matched with the adjusting metal plate locking holes and the metal cover plate locking holes.

6. A progressive addition lens fitting experience frame according to claim 5, characterized in that: The middle part of the clamping fixture is symmetrically provided with two vertical long strip connecting piece locking holes for inserting the clamping connector. The two sides of the clamping fixture are provided with symmetrical fixing piece clamping supports. The surface of the fixing piece clamping support is provided with an ultra-thin silicone anti-slip cover with strong adhesion to improve the clamping stability.

7. The progressive addition lens fitting experience frame according to claim 5, characterized in that: A rectangular spring mounting locking hole is provided in the middle part of the clamping connector for inserting the spring mounting part; a circular driving part socket hole is provided on the top of the clamping connector for socketing the clamping driving part; a connector locking head is provided at the bottom of the clamping connector for vertically inserting into the connector locking hole for locking and fixing, thereby connecting and fixing the clamping connector and the clamping fixing part into a whole.

8. The progressive addition lens fitting experience frame according to claim 5, characterized in that: Two spring mounting locking heads are symmetrically arranged at both ends of the spring mounting member for being inserted into the spring mounting locking hole for locking and fixing. A spring mounting hook is also arranged on the top of the spring mounting member for sleeve installation and clamping the spring.

9. The progressive addition lens fitting experience frame according to claim 5, characterized in that: The clamping spring comprises a spring sleeve hole formed by winding, and a driving connection hook and a fixing abutment head are respectively extended from both ends of the spring sleeve hole, which are respectively used for hooking on the clamping driving member and abutting on the clamping fixing member.

10. The progressive addition lens fitting experience frame according to claim 5, characterized in that: The clamping drive member includes a clamping hand handle located at the top, and symmetrically arranged clamping beams are provided on both sides of the clamping hand handle. A driving member clamping support is provided at the bottom of each clamping beam perpendicular to it. The surface of the driving member clamping support is also provided with an ultra-thin silicone anti-slip cover with strong adhesion, which cooperates with the fixing member clamping support to improve the clamping stability.

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