Mirror frame rotating assembly of trial frame

Abstract

The utility model belongs to the technical field of trial mirror brackets, in particular to a mirror frame rotating component of a trial mirror bracket, which comprises a main mirror bracket and mirror frames arranged on the left side and the right side of the main mirror bracket, the mirror frames are circumferentially and rotatably connected onto the main mirror bracket, annular teeth are arranged on the wall surfaces of the mirror frames around the axes of the mirror frames, and an adjusting rotating shaft is rotatably connected onto the main mirror bracket. The adjusting rotating shaft is sleeved with a linkage gear meshed with the annular teeth. The optometry glasses are simple in structure, reasonable in design and convenient to operate, and accurate adjustment of the glasses frames and the optometry lenses can be achieved only by erecting the optometry lenses on the corresponding glasses frames and driving the glasses frames to rotate through the linkage gears by means of the adjusting rotating shafts.

Description

Technical field:

[0001] The utility model belongs to the technical field of trial glasses frames, in particular to a frame rotating component of a trial glasses frame. Background technology:

[0002] Trial frames, as insert-type optometry devices, allow patients to try on trial lenses inserted into the frames. By repeatedly changing the lenses, the appropriate prescription for the patient is determined. However, for patients with astigmatism and strabismus, the operator must manually rotate the inserted lenses around the circumference to determine the direction of the astigmatism and strabismus, making precise adjustment impossible. Summary of the invention:

[0003] The purpose of the utility model is to provide a frame rotating assembly for a trial glasses frame, which has a simple structure and is easy to operate. It only requires the trial lenses to be mounted on the corresponding frames, and the frames and trial lenses can be accurately adjusted by rotating the adjustment shaft.

[0004] The utility model is achieved in this way:

[0005] A frame rotating assembly of a trial spectacles frame includes a main frame and frames arranged on the left and right sides of the main frame. The frames are circumferentially connected to the main frame, and annular teeth are arranged on the wall surface of the frames around their axis. An adjustment shaft is rotatably connected to the main frame, and the adjustment shaft is equipped with a linkage gear that meshes with the annular teeth.

[0006] In the above-mentioned frame rotation assembly of a trial spectacles frame, the main frame includes a front frame and a rear ring cover arranged on the rear side wall of the front frame, an annular limiting groove is formed between the front frame and the rear ring cover, and the outer edge of the rear side of the frame extends outward to form an annular connecting protrusion that rotates circumferentially on the annular limiting groove.

[0007] In the above-mentioned frame rotation assembly of a trial spectacles frame, a plurality of positioning posts are provided on the front side wall of the rear ring cover, positioning holes for the positioning posts to be plugged in and engaged are opened on the rear side wall of the front frame, and the rear ring cover is fixedly connected to the front frame by fastening screws.

[0008] In the above-mentioned frame rotation assembly of a trial spectacles frame, the annular teeth are arranged on the rear side wall of the frame located in the annular limiting groove, an adjustment assembly hole connected to the assembly space is formed between the front frame and the rear ring cover, the adjustment shaft is rotatably connected in the adjustment assembly hole, and the linkage gear is mounted on the inner end of the adjustment shaft extending out of the adjustment assembly hole to the annular limiting groove.

[0009] In the above-mentioned frame rotation assembly of a trial spectacles frame, the adjustment assembly hole is a stepped hole, and includes an outer small diameter portion, a large diameter portion and an inner small diameter portion from the inside to the inside. Positioning steps are formed between the outer small diameter portion and the large diameter portion, and between the large diameter portion and the inner small diameter portion. The middle outer wall surface of the adjustment shaft extends outward to form a large ring portion axially limited within the large diameter portion.

[0010] In the above-mentioned frame rotating assembly of the trial spectacles frame, the inner diameter of the rear ring cover is consistent with the inner diameter of the frame, and an annular protective protrusion is formed on the rear ring cover located inside the annular teeth and extending forward.

[0011] In the above-mentioned frame rotating assembly of the trial spectacles frame, the outer end of the adjusting shaft extends outwardly to the outside of the main spectacles frame and is fitted with an adjusting knob.

[0012] The outstanding advantages of the utility model compared with the prior art are:

[0013] The utility model has a simple structure, reasonable design and convenient operation. It only needs to mount the trial lens on the corresponding frame, and the frame can be rotated by adjusting the rotating shaft through the linkage gear to achieve precise adjustment of the frame and the trial lens. Description of the drawings:

[0014] Figure 1 It is an overall three-dimensional diagram of the utility model;

[0015] Figure 2 The utility model is a frame rotating assembly explosion Figure 1 .

[0016] In the figure: 1. Frame; 2. Annular teeth; 3. Adjustment shaft; 4. Linkage gear; 5. Front frame; 6. Rear ring cover; 7. Annular connecting protrusion; 8. Positioning column; 9. Positioning hole; 10. Large ring; 11. Annular protective protrusion; 12. Adjustment knob. Specific implementation method:

[0017] The present invention is further described below with reference to specific embodiments. Figure 1 —2:

[0018] A frame rotating assembly of a trial spectacles frame includes a main frame and frames 1 arranged on the left and right sides of the main frame. The frame 1 is circumferentially connected to the main frame, and annular teeth 2 are arranged on the wall surface of the frame 1 around its axis. An adjustment shaft 3 is rotatably connected to the main frame, and a linkage gear 4 meshing with the annular teeth 2 is mounted on the adjustment shaft 3.

[0019] The utility model has a simple structure, reasonable design and convenient operation. It only needs to mount the trial lens on the corresponding frame 1, and use the adjustment shaft 3 to drive the rotation of the frame 1 through the linkage gear 4 to achieve precise adjustment of the frame 1 and the trial lens.

[0020] Among them, in order to enable the frame 1 to rotate stably on the main frame, in this embodiment, the main frame includes a front frame 5 and a rear ring cover 6 covered on the rear side wall of the front frame 5, and an annular limiting groove is formed between the front frame 5 and the rear ring cover 6. The outer edge of the rear side of the frame 1 extends outward to form an annular connecting protrusion 7 that rotates circumferentially on the annular limiting groove.

[0021] At the same time, the front frame 5 and the rear ring cover 6 can be detachably connected through the existing snap-on structure to facilitate the assembly and disassembly of the frame 1. In this embodiment, the specific connection structure adopted between the front frame 5 and the rear ring cover 6 is as follows: a plurality of positioning posts 8 are provided on the front side wall of the rear ring cover 6, and positioning holes 9 for the positioning posts 8 to be plugged in are provided on the rear side wall of the front frame 5, and the rear ring cover 6 is fixedly connected to the front frame 5 by fastening screws.

[0022] Furthermore, in order to prevent the meshing transmission between the linkage gear 4 and the annular teeth 2 from being interfered with by the outside world, the annular teeth 2 are arranged on the rear side wall of the frame 1 located in the annular limiting groove, and an adjustment assembly hole connected to the assembly space is formed between the front frame 5 and the rear ring cover 6, the adjustment shaft 3 is rotatably connected in the adjustment assembly hole, and the linkage gear 4 is mounted on the inner end of the adjustment shaft 3 extending from the adjustment assembly hole to the annular limiting groove.

[0023] In order to enable the adjustment shaft 3 to be axially positioned in the adjustment assembly hole to ensure stable transmission between the linkage gear 4 and the annular teeth 2, the adjustment assembly hole is a stepped hole, and includes an outer small diameter portion, a large diameter portion and an inner small diameter portion from the inside to the inside. Positioning steps are formed between the outer small diameter portion and the large diameter portion, and between the large diameter portion and the inner small diameter portion. The middle outer wall surface of the adjustment shaft 3 extends outward to form a large ring portion 10 axially limited in the large diameter portion.

[0024] Furthermore, in order to prevent foreign particles and impurities from entering between the linkage gear 4 and the annular teeth 2, thereby causing obstruction in the transmission of the linkage gear 4 and the annular teeth 2, the inner diameter of the rear ring cover 6 is consistent with the inner diameter of the frame 1, and an annular protective protrusion 11 is extended forward on the rear ring cover 6 located on the inner side of the annular teeth 2.

[0025] In addition, in order to facilitate the operator to rotate the adjustment shaft 3, the outer end of the adjustment shaft 3 extends outwardly outside the main mirror frame and is equipped with an adjustment knob 12.

[0026] The above embodiment is only one of the preferred embodiments of the present invention and is not intended to limit the scope of implementation of the present invention. Therefore, any equivalent changes made based on the shape, structure, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A frame rotating assembly for a trial spectacles frame, comprising a main frame and frames (1) arranged on the left and right sides of the main frame, characterized in that: The mirror frame (1) is rotatably connected to the main mirror frame, and an annular tooth (2) is provided on the wall surface of the mirror frame (1) around its axis. An adjustment shaft (3) is rotatably connected to the main mirror frame, and a linkage gear (4) meshing with the annular tooth (2) is mounted on the adjustment shaft (3). The main mirror frame comprises a front mirror frame (5) and a rear ring cover (6) arranged on the rear side wall of the front mirror frame (5); an annular limiting groove is formed between the front mirror frame (5) and the rear ring cover (6); and an annular connecting protrusion (7) is formed on the outer edge of the rear side of the mirror frame (1) and is circumferentially rotated on the annular limiting groove. A plurality of positioning posts (8) are provided on the front side wall of the rear ring cover (6), and positioning holes (9) for the positioning posts (8) to be plugged in and matched are provided on the rear side wall of the front mirror frame (5), and the rear ring cover (6) is fixedly connected to the front mirror frame (5) by fastening screws; The annular teeth (2) are arranged on the rear side wall of the frame (1) located in the annular limiting groove, an adjustment assembly hole connected to the assembly space is formed between the front frame (5) and the rear ring cover (6), the adjustment shaft (3) is rotatably connected in the adjustment assembly hole, and the linkage gear (4) is sleeved on the inner end of the adjustment shaft (3) extending from the adjustment assembly hole to the annular limiting groove.

2. The frame rotating assembly of a trial spectacles frame according to claim 1, characterized in that: The adjustment assembly hole is a stepped hole and includes an outer small diameter portion, a large diameter portion and an inner small diameter portion in sequence from the inside to the inside. Positioning steps are formed between the outer small diameter portion and the large diameter portion, and between the large diameter portion and the inner small diameter portion. The outer wall surface of the middle portion of the adjustment shaft (3) extends outward to form a large ring portion (10) axially limited in the large diameter portion.

3. The frame rotating assembly of a trial spectacles frame according to claim 1, characterized in that: The inner diameter of the rear ring cover (6) is consistent with the inner diameter of the lens frame (1), and an annular protective protrusion (11) is formed on the rear ring cover (6) located on the inner side of the annular teeth (2) and extends forward.

4. The frame rotating assembly of a trial spectacles frame according to claim 1 or 2, characterized in that: The outer end of the adjustment shaft (3) extends outwards to the outside of the main mirror frame and is fitted with an adjustment knob (12).

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