Test lens fixing seat and try-on frame

Abstract

The invention provides a test lens fixing seat and a try-on frame, and relates to the technical field of glasses, the test lens fixing seat comprises a seat body, the seat body is made of a plastic material, the seat body is provided with a clamping groove, two opposite sides of the clamping groove are communicated, the clamping groove is internally provided with an inner groove, the inner groove extends inwards from the groove bottom of the clamping groove, and the inner groove is connected with the clamping groove. The clamping groove is used for clamping a hook head on an annular supporting seat assembly, the inner groove is used for clamping a limiting block in the hook head on the annular supporting seat assembly, and double clamping with the annular supporting seat assembly is achieved through the clamping groove and the inner groove; the base body is made of the plastic material, so that the base body can deform to a certain extent, the clamping strength is further cooperatively increased, the test lens is not easy to loosen after being inserted and worn for a long time, and the test efficiency is improved. And the service life is prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of glasses, in particular to a test lens fixing seat and a trial wearing frame. Background Art

[0002] Trial frames, also called optometry trial frames, are used when conducting vision tests at eyewear stores. Multiple test lenses of different degrees are prepared in advance. The subject is asked to wear the trial frames and replace different test lenses in the lens slots of the trial frames to obtain lenses that are suitable for the subject's vision strength.

[0003] The fixing seat on the existing trial frame is usually fixed to the frame of the optometry trial frame by metal screws. Due to the needs of optometry, there are usually three to five lens slots. This installation method has two disadvantages. First, the metal screws are easy to loosen and rust over time and are heavy, which makes it uncomfortable for users to wear. Second, the fixing seat is usually fixed and not easy to disassemble and install. In addition, the number of lens slots is relatively fixed, and the flexibility is poor. For example, when three lens slots are not enough, it is necessary to replace the optometry trial frame with more lens slots. When three lens slots are sufficient for the test subject, and the optometry trial frame has five lens slots, the extra two lens slots will increase the total mass of the optometry trial frame.

[0004] However, the fixing seat is buckled on the frame of the trial frame. Since the buckle surfaces of the fixing seat and the buckle surfaces on the frame of the trial frame are relatively simple, they are prone to loosening over time, resulting in unstable swinging when worn, thereby shortening the service life. Summary of the invention

[0005] In view of this, one of the purposes of the present invention is to provide a test lens holder to solve the technical problem that the holder in the prior art is installed on the frame of the trial fitting frame by snap-fitting, but the snap-fitting surface is relatively simple, which leads to easy loosening and shortened service life.

[0006] A second object of the present invention is to provide a trial fitting frame comprising a test lens fixing seat.

[0007] In order to achieve one of the above-mentioned purposes, the present invention provides a test lens fixing seat for being clamped on an annular support seat assembly, including a seat body, the seat body is made of plastic material, one side of which is provided with a plurality of inserting slots, and the opposite side is provided with a clamping slot, the clamping slot is located between adjacent said inserting slots, the opposite sides of the clamping slot are conductive, and an inner groove is provided inside, and the inner groove extends inward from the bottom of the clamping slot.

[0008] According to an optional embodiment, the inner groove includes a first side wall, a second side wall, a third side wall and a fourth side wall, the first side wall, the second side wall and the third side wall are plane side walls, and the fourth side wall is set as an arc side wall.

[0009] According to an optional embodiment, both the first side wall and the second side wall extend from the bottom of the inner groove toward the clamping slot, and are common side walls with the clamping slot.

[0010] According to an optional embodiment, the first side wall is provided with a first protrusion and a second protrusion, the first protrusion and the second protrusion are both located on the first side wall of the slot portion, the first protrusion and the second protrusion are spaced a preset distance apart, the side surface of the first protrusion in the thickness direction is located in the same vertical plane as the third side wall, the side surface of the second protrusion in the thickness direction is an arc-shaped surface, and forms a stepped structure with the fourth side wall.

[0011] According to an optional implementation, the first side wall and the first protrusion are both in an arc-shaped step-shaped structure, and the top of the first protrusion and the top of the second protrusion both form a step-shaped structure with the top of the first side wall.

[0012] According to an optional embodiment, the second side wall is provided with a third protrusion and a fourth protrusion, and the third protrusion and the fourth protrusion are both located on the second side wall of the slot portion, and the third protrusion and the fourth protrusion are spaced a preset distance apart, and the side surface of the third protrusion in the thickness direction is located in the same vertical plane as the third side wall, and the side surface of the fourth protrusion in the thickness direction is an arc-shaped surface, and forms a stepped structure with the fourth side wall.

[0013] According to an optional implementation, the second side wall and the third protrusion both have an arc-shaped step-like structure, and the top of the third protrusion and the top of the fourth protrusion both form a step-like structure with the top of the second side wall.

[0014] In order to achieve the second objective, the present invention provides a fitting frame, comprising any one of the test lens holders described above, and also comprising a frame and an annular support seat assembly, wherein the annular support seat assembly is made of a metal material, the annular support seat assembly is mounted on the inner wall of the frame, and the holders are mounted in pairs on the opposite inner walls of the annular support seat assembly;

[0015] The annular support seat assembly includes a first seat body and a second seat body, the second seat body is fixed on the first seat body, and an arc-shaped slide groove is formed between the second seat body and the first seat body, the arc-shaped slide groove is located on the outer side walls of the first seat body and the second seat body, and the first seat body and the second seat body are provided with hooks on opposite sides of the inner side walls for clamping the fixed seat, and a limit block adapted to the inner groove is provided in the hook.

[0016] According to an optional embodiment, the two sides of the limit block are respectively the first limit groove and the second limit groove, the surface of the limit block shared with the first limit groove is a plane, and the surface of the limit block shared with the second limit groove is an arc surface.

[0017] According to an optional embodiment, the groove wall and the groove bottom of the first limiting groove form an arc-shaped step structure, and the groove wall of the second limiting groove opposite to the limiting block is an arc-shaped groove wall.

[0018] The test lens holder provided by the present invention has the following technical effects:

[0019] The test lens fixing seat is used to be clamped on the annular support seat assembly, including a seat body, the seat body is made of plastic material, and the seat body is provided with a clamping groove, the two opposite sides of the clamping groove are conductive, and the interior of the clamping groove is provided with an inner groove, and the inner groove extends inward from the groove bottom of the clamping groove. The clamping groove of the present invention is used to clamp the hook head on the annular support seat assembly, and the inner groove is used to clamp the limit block in the hook head on the annular support seat assembly. The double clamping with the annular support seat assembly is achieved by the clamping groove and the inner groove. The existence of the clamping groove and the inner groove enables it to have multiple contact surfaces and multiple force points with the hook head in the annular support seat assembly and the limit block inside it. Since the seat body is made of plastic material, the seat body can be deformed to a certain extent, thereby synergistically increasing the clamping strength. After the test lens is inserted, it is not easy to loosen even if worn for a long time, thereby extending the service life.

[0020] The trial wearing frame provided by the present invention has the following technical effects:

[0021] The trial fitting frame comprises a fixing seat, a frame and an annular support seat assembly, and realizes double clamping connection through a clamping groove and an inner groove on the fixing seat and a hook and a limit block on the annular support seat assembly, thereby overcoming the defects of swinging and unstable installation of the fixing seat on the trial fitting frame in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is a three-dimensional structural schematic diagram of a preferred embodiment of a test lens fixing seat of the present invention;

[0024] Figure 2 yes Figure 1 Another schematic diagram of the three-dimensional structure of the test lens holder;

[0025] Figure 3 Is used for installation Figure 1 A schematic diagram of the three-dimensional structure of the annular support seat assembly of the test lens fixing seat;

[0026] Figure 4 yes Figure 3 A front view of the middle annular support seat assembly;

[0027] Figure 5 It is a three-dimensional structural diagram of a single frame mechanism of a trial-fitting frame;

[0028] Figure 6 yes Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0029] Figure 7 yes Figure 1 A schematic diagram of the enlarged structure at B in the middle;

[0030] Figure 8 yes Figure 4 Schematic diagram of the enlarged structure at point C in the middle.

[0031] in, Figure 1-Figure 8 :

[0032] 1. fixing seat; 11. card slot; 111. inner groove; 112. first side wall; 113. second side wall; 114. third side wall; 115. fourth side wall; 116. first protrusion; 117. second protrusion; 118. third protrusion; 119. fourth protrusion; 12. insert slot;

[0033] 2. Picture frame;

[0034] 3. annular support seat assembly; 31. first seat body; 32. second seat body;

[0035] 4. Hook; 41. Limit block; 42. First limit groove; 43. Second limit groove. DETAILED DESCRIPTION

[0036] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0037] Based on the defects in the prior art, Figure 1-7 A preferred embodiment of the trial fitting frame of the present invention is described in detail.

[0038] The trial fitting frame of the present invention comprises a frame mechanism, which is arranged in pairs, and further comprises temples and a connecting rod for connecting the frame mechanism, that is, the glasses structure is formed by assembling the frame mechanism, the connecting rod and the temples.

[0039] like Figure 3 and Figure 4 As shown, the frame mechanism includes a fixed seat 1, a frame 2 and an annular support seat assembly 3, the annular support seat assembly 3 is made of metal material, the annular support seat assembly 3 is installed on the inner wall of the frame 2, the fixed seat 1 is installed in pairs on the opposite inner walls of the annular support seat assembly 3, and the frame 2 has a scale ranging from 0 to 180 degrees.

[0040] like Figure 5 As shown, the structure of the frame 2 with the test lens installed is shown.

[0041] The specific structures of the fixing seat 1, the lens frame 2 and the annular supporting seat assembly 3 are described in detail below.

[0042] like Figure 3 , Figure 4 and Figure 8 As shown, the annular support seat assembly 3 includes a first seat body 31 and a second seat body 32. The second seat body 32 is fixed on the first seat body 31 and forms an arc-shaped slide groove with the first seat body 31. The arc-shaped slide groove is located on the outer wall between the first seat body 31 and the second seat body 32. The first seat body 31 and the second seat body 32 are provided with hook heads 4 for clamping the fixed seat 1 on opposite sides of the inner side walls. The hook heads 4 are provided with a limit block 41 adapted to the inner groove 111. The hook heads 4 in this embodiment include two, so the fixed seat 1 also includes two.

[0043] Fixed seat 1, such as Figure 1 , Figure 2 , Figure 6 and Figure 7 As shown, it is used for clamping on the first seat body 31 and the second seat body 32, and includes a seat body, which is made of plastic material and is injection molded in one step.

[0044] The seat body is a flat structure, with four inserting slots 12 on one side, and a card slot 11 on the opposite side of the inserting slot 12. The card slot 11 is located between two adjacent inserting slots 12, and the two sides of the card slot 11 are conductive, that is, the card slot 11 is a connected channel structure, and the interior of the card slot 11 is provided with an inner groove 111, and the inner groove 111 is located near the middle of the card slot 11, and the inner groove 111 extends inward from the bottom of the card slot 11, that is, the inner groove 111 is a groove within the slot 11.

[0045] Specifically, Figure 1 , Figure 2 , Figure 6 and Figure 7 As shown, the inner groove 111 includes a first side wall 112, a second side wall 113, a third side wall 114 and a fourth side wall 115, and the first side wall 112, the second side wall 113, the third side wall 114 and the fourth side wall 115 surround a cavity with a top opening, the first side wall 112, the second side wall 113 and the third side wall 114 are plane side walls, and the fourth side wall 115 is an arcuate side wall, wherein the first side wall 112 and the second side wall 113 are arranged opposite to each other, the third side wall 114 and the fourth side wall 115 are arranged opposite to each other, and the first side wall 112 and the second side wall 113 have the same shape and are also symmetrically arranged.

[0046] It should be noted that the first side wall 112 and the second side wall 113 of this embodiment extend from the bottom of the inner groove 111 toward the card slot 11 , that is, the first side wall 112 and the second side wall 113 are common side walls of the inner groove 111 and the card slot 11 .

[0047] Continue to see Figure 1 , Figure 2 , Figure 6 and Figure 7 As shown, the first side wall 112 of the present embodiment is provided with a first protrusion 116 and a second protrusion 117, and the first protrusion 116 and the second protrusion 117 are both located on the first side wall 112 of the card slot 11, that is, the first protrusion 116 and the second protrusion 117 are located on both sides of the slot opening of the card slot, and the side surface of the first protrusion 116 in the thickness direction is located in the same vertical plane as the third side wall 114, and the side surface of the second protrusion 117 in the thickness direction is an arc surface, and forms a stepped structure with the fourth side wall 115, and the first protrusion 116 and the second protrusion 117 are separated by a preset distance, where the preset distance is less than or equal to the width of the slot opening, and the arc surface in the thickness direction of the second protrusion 117 cooperates with the stepped structure formed by the fourth side wall 115 to form a limiting effect on the limit block 41 inserted into the inner groove 111 to prevent the limit block 41 from detaching from the card slot.

[0048] like Figure 1 and Figure 6As shown, the first side wall 112 and the first protrusion 116 of this embodiment are both in an arc-shaped step-like structure, and the top of the first protrusion 116 and the top of the second protrusion 117 both form a step-like structure with the top of the first side wall 112 .

[0049] Specifically, the step structure connecting surfaces on the first protrusion 116 and the second protrusion 117 are inclined surfaces, which are convenient for increasing the contact surface with the hook head 4 on the first base body 31 and the second base body 32 and increasing the force points, thereby increasing the clamping strength between the fixing base 1 and the hook head 4.

[0050] Similarly, continue to see Figure 1 , Figure 2 , Figure 6 and Figure 7 As shown, the second side wall 113 of the present embodiment is provided with a third protrusion 118 and a fourth protrusion 119, and the third protrusion 118 and the fourth protrusion 119 are both located on the second side wall 113 of the card slot 11, that is, the third protrusion 118 and the fourth protrusion 119 are located on both sides of the slot opening of the card slot, and the side surface of the third protrusion 118 in the thickness direction is located in the same vertical plane as the third side wall 114, and the side surface of the fourth protrusion 119 in the thickness direction is an arc surface, and forms a stepped structure with the fourth side wall 115, and the third protrusion 118 and the fourth protrusion 119 are spaced apart by a preset distance, where the preset distance is less than or equal to the width of the slot opening, and the arc surface in the thickness direction of the fourth protrusion 119 cooperates with the stepped structure formed by the fourth side wall 115 to form a limiting effect on the limit block 41 inserted into the inner groove 111 to prevent the limit block 41 from escaping from the card slot.

[0051] like Figure 2 and Figure 7 As shown, the second side wall 113 and the third protrusion 118 of this embodiment are both in an arc-shaped step-like structure, and the top of the third protrusion 118 and the top of the fourth protrusion 119 both form a step-like structure with the top of the second side wall 113.

[0052] Specifically, the step structure connecting surfaces on the third protrusion 118 and the fourth protrusion 119 are inclined surfaces, which are convenient for increasing the contact surface with the hook head 4 on the first seat body 31 and the second seat body 32 and increasing the force points, thereby increasing the clamping strength between the fixing seat 1 and the hook head 4.

[0053] like Figure 3 , Figure 4 and Figure 8 As shown, the two sides of the limit block 41 are respectively a first limit groove 42 and a second limit groove 43, the surface of the limit block 41 shared with the first limit groove 42 is a plane, and the surface of the limit block 41 shared with the second limit groove 43 is an arc surface. The groove wall and the groove bottom of the first limit groove 42 form an arc-shaped step structure, and the groove wall of the second limit groove 43 opposite to the limit block 41 is an arc-shaped groove wall.

[0054] When the fixing seat 1 is clamped on the hook head 4 of the annular support seat, the limit block 41 of the hook head 4 is clamped into the inner groove 111, and the first protrusion 116 and the third protrusion 118 are clamped into the first limit groove 42. The arc-shaped step structure of the first protrusion 116 and the arc-shaped step structure of the second protrusion 117 are adapted to the arc-shaped step structure of the first limit groove 42 to increase the force points and contact surfaces; similarly, the second protrusion 117 and the fourth protrusion 119 are clamped into the second limit groove 43, and also have multiple force points and contact surfaces, thereby realizing the strong fastening of the fixing seat 1 on the first seat body 31 and the second seat body 32 to prevent loosening.

[0055] At the same time, the arc surface on the limit block 41 can also correspond to the arc surface of the fourth side wall 115, but the arc surface on the limit block 41 is not in direct contact with the arc-shaped fourth side wall 115, but has a certain non-contact space. Once the plastic fixing seat 1 is used upside down for a long time, fatigue occurs. According to the principle of plastic fatigue and reset, the non-contact space automatically compensates, so as to achieve the purpose of long-term operation without loosening.

[0056] Since the fixing seat 1 is made of plastic material, and the first seat body 31 and the second seat body 32 are made of metal material, the inner groove 111 of the fixing seat 1 can be deformed to a certain extent, thereby enabling the limiting block 41 to be pressed in.

[0057] In addition, in this embodiment, since the first side wall 112 and the first protrusion 116 are both in an arc-shaped step-like structure, and since the second side wall 113 and the third protrusion 118 are both in an arc-shaped step-like structure, it is possible to form a clamping state on both sides of the hook 4 on the first base body 31 and the second base body 32, further preventing the swing caused by the long-term insertion of the test lens on the fixing base 1.

[0058] Since the fixing seat 1 of this embodiment is made of plastic material and only its structure is optimized, the lightness of the frame mechanism is still guaranteed.

[0059] In the description of the present invention, it should be noted that, unless otherwise specified, "multiple" means two or more than two; the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0060] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0061] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art who is familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A test lens holder, used for clamping on an annular support seat assembly, comprising a seat body, the seat body is made of plastic material, one side of the seat body is provided with a plurality of inserting slots, and the opposite side is provided with a card slot, the card slot is located between adjacent inserting slots, characterized in that: The two opposite sides of the card slot are connected, and an inner groove is arranged inside the card slot, and the inner groove extends inward from the bottom of the card slot.

2. The test lens holder according to claim 1, characterized in that: The inner groove includes a first side wall, a second side wall, a third side wall and a fourth side wall. The first side wall, the second side wall and the third side wall are plane side walls, and the fourth side wall is set as an arc-shaped side wall.

3. The test lens holder according to claim 2, characterized in that: The first side wall and the second side wall both extend from the bottom of the inner groove toward the clamping groove, and are common side walls with the clamping groove.

4. The test lens holder according to claim 3, characterized in that: The first side wall is provided with a first protrusion and a second protrusion, and the first protrusion and the second protrusion are both located on the first side wall of the slot portion, the first protrusion and the second protrusion are spaced a preset distance apart, the side surface of the first protrusion in the thickness direction is located in the same vertical plane as the third side wall, and the side surface of the second protrusion in the thickness direction is an arc-shaped surface, and forms a stepped structure with the fourth side wall.

5. The test lens holder according to claim 4, characterized in that: The first side wall and the first protrusion are both in an arc-shaped step-shaped structure, and the top of the first protrusion and the top of the second protrusion form a step-shaped structure with the top of the first side wall.

6. The test lens holder according to claim 3, characterized in that: The second side wall is provided with a third protrusion and a fourth protrusion, and the third protrusion and the fourth protrusion are both located on the second side wall of the slot portion, and the third protrusion and the fourth protrusion are spaced a preset distance apart. The side surface of the third protrusion in the thickness direction is located in the same vertical plane as the third side wall, and the side surface of the fourth protrusion in the thickness direction is an arc-shaped surface, and forms a stepped structure with the fourth side wall.

7. The test lens holder according to claim 6, characterized in that: The second side wall and the third protrusion are both in an arc-shaped step-shaped structure, and the top of the third protrusion and the top of the fourth protrusion form a step-shaped structure with the top of the second side wall.

8. A trial fitting frame, characterized in that: A test lens holder according to any one of claims 1 to 7, further comprising a lens frame and an annular support seat assembly, wherein the annular support seat assembly is made of a metal material, the annular support seat assembly is mounted on the inner wall of the lens frame, and the fixing seats are mounted in pairs on the opposite inner walls of the annular support seat assembly; The annular support seat assembly includes a first seat body and a second seat body, the second seat body is fixed on the first seat body, and an arc-shaped slide groove is formed between the second seat body and the first seat body, the arc-shaped slide groove is located on the outer side walls of the first seat body and the second seat body, and the first seat body and the second seat body are provided with hooks on opposite sides of the inner side walls for clamping the fixed seat, and a limit block adapted to the inner groove is provided in the hook.

9. The fitting frame according to claim 8, characterized in that: The two sides of the limit block are respectively a first limit groove and a second limit groove, the surface of the limit block shared with the first limit groove is a plane, and the surface of the limit block shared with the second limit groove is an arc surface.

10. The fitting frame according to claim 9, characterized in that: The groove wall and the groove bottom of the first limiting groove form an arc-shaped step structure, and the groove wall of the second limiting groove opposite to the limiting block is an arc-shaped groove wall.

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