Mirror frame adjusting assembly of trial frame

Abstract

The utility model belongs to the technical field of trial frames, in particular to a frame adjusting component of a trial frame, which comprises a main frame, the main frame comprises a middle connecting seat, a left frame and a right frame, the left frame and the right frame are respectively arranged on two sides of the middle connecting seat, and both the left frame and the right frame are transversely and slidably connected onto the middle connecting seat. An adjusting rotating shaft is rotationally connected to the middle connecting seat and drives the left glasses frame and the right glasses frame to move towards each other or away from each other through a transmission assembly. The glasses are simple in structure, reasonable in design and wide in applicability, the transverse spacing position of the two glasses frames can be adjusted only by rotating the adjusting rotating shaft through the transmission assembly so as to meet the wearing requirements of different wearers, and then the detection precision of the lens matching degree is ensured.

Description

Technical field:

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

[0002] The trial glasses frame disclosed in the existing Chinese utility model patent (authorization announcement number is CN210643996U) includes two mirror rings, a crossbeam, temples, replaceable nose pads of different models, and relative pupil height and eye distance combined measurement leg covers. The relative pupil height and eye distance combined measurement leg covers have relative pupil height scales and eye distance scales and are connected to the specified position of the temples. When the relative pupil height and eye distance combined measurement leg covers are connected to the temples, the specific scale line of the relative pupil height scale is flush with the center of the mirror ring in the direction. The relative pupil height scale is used to measure the height of the pupil relative to the center of the mirror ring of the trial glasses frame when the user wears the glasses. When the relative pupil height and eye distance combined measurement leg covers are connected to the temples, the specific scale line of the eye distance scale is flush with the specified position of the temple in the direction.

[0003] However, the position between the two lens rings of this structure is relatively fixed and cannot be adjusted, and each wearer has a different face shape, eye distance and cheek width. In actual use, it will not only make the wearer uncomfortable, but also affect the detection of the degree of the glasses. Summary of the invention:

[0004] The utility model aims to provide a frame adjustment component of a trial glasses frame, which can adjust the lateral spacing between two frames to meet the wearing needs of different wearers and ensure the detection accuracy of the glasses degree.

[0005] The utility model is achieved in this way:

[0006] A frame adjustment component of a trial glasses frame includes a main frame, the main frame includes a middle connecting seat, and a left frame and a right frame respectively provided with two side portions of the middle connecting seat, the left frame and the right frame are both connected to the middle connecting seat in a transverse sliding manner, and the middle connecting seat is rotatably connected to an adjustment shaft, and the adjustment shaft drives the left frame and the right frame to move toward or away from each other through a transmission component.

[0007] In the above-mentioned frame adjustment assembly of a trial spectacles frame, a sliding fitting through hole is horizontally opened on the upper edge of the middle connecting seat, and sliding fitting parts that can be inserted into the corresponding ports of the sliding fitting through hole are provided on the upper right side of the left frame and the upper left side of the right frame, and the adjustment shaft is respectively connected to the sliding fitting parts of the left frame and the right frame through the transmission assembly.

[0008] In the frame adjusting assembly of the above-mentioned audition frame, the transmission assembly includes transmission teeth horizontally arranged on the left frame and the right frame, and the transmission teeth of the left frame and the right frame are arranged opposite to each other vertically. A linkage gear meshing between the two transmission teeth is sleeved on the adjusting rotating shaft.

[0009] In the frame adjusting assembly of the above-mentioned audition frame, limiting strip holes are horizontally formed on both the left frame and the right frame, and the horizontal parts of the two limiting strip holes overlap partially or completely. The adjusting rotating shaft vertically penetrates through the two limiting strip holes, and the transmission teeth are arranged on the corresponding side walls of the limiting strip holes.

[0010] In the frame adjusting assembly of the above-mentioned audition frame, the adjusting rotating shaft and the linkage gear are of an integral structure.

[0011] In the frame adjusting assembly of the above-mentioned audition frame, the sliding fitting members extend outward from the corresponding frames. The ends of the two sliding fitting members located in the sliding fitting through holes overlap front and back, and avoiding opening grooves which are symmetric left and right and can allow the end of the other sliding fitting member to slide and insert are formed on the overlapping opposite side walls of the two sliding fitting members.

[0012] In the frame adjusting assembly of the above-mentioned audition frame, the front end of the adjusting rotating shaft extends forward beyond the middle connecting seat and is sleeved with an adjusting knob. The rear end of the adjusting rotating shaft extends backward beyond the middle connecting seat and is provided with an annular groove, and a limiting ring sleeve which can abut against the rear side wall of the middle connecting seat is sleeved on the annular groove.

[0013] The prominent advantages of the present utility model compared with the prior art are:

[0014] The structure of the present utility model is simple, reasonably designed and has wide applicability. By only rotating the adjusting rotating shaft, the horizontal distance position of the two frames can be adjusted through the transmission assembly to meet the wearing requirements of different wearers, thereby ensuring the detection accuracy of the spectacle prescription. Description of the Drawings:

[0015] Figure 1 is the three-dimensional view of the overall structure of the present utility model;

[0016] Figure 2 is the exploded view of the frame adjusting assembly of the present utility model.

[0017] In the figure: 1, middle connecting seat; 2, left frame; 3, right frame; 4, adjusting rotating shaft; 5, sliding fitting through hole; 6, sliding fitting member; 7, transmission tooth; 8, linkage gear; 9, limiting strip hole; 10, avoiding opening groove; 11, adjusting knob; 12, limiting ring sleeve. Detailed Description of the Invention:

[0018] The present invention is further described below with reference to specific embodiments. Figure 1 —2:

[0019] A frame adjustment component of a trial glasses frame includes a main frame, wherein the main frame includes an intermediate connecting seat 1, and a left frame 2 and a right frame 3 respectively provided with two side portions of the intermediate connecting seat 1, the left frame 2 and the right frame 3 are both laterally slidably connected to the intermediate connecting seat 1, and an adjustment shaft 4 is rotatably connected to the intermediate connecting seat 1, and the adjustment shaft 4 drives the left frame 2 and the right frame 3 to move toward or away from each other through a transmission component.

[0020] The utility model has a simple structure, reasonable design and wide applicability. The lateral spacing between the two frames can be adjusted by rotating the adjustment shaft 4 through the transmission component to meet the wearing needs of different wearers, thereby ensuring the detection accuracy of the glasses degree.

[0021] In order to prevent the outside world from interfering with the sliding structure of the left frame 2 and the right frame 3, in this embodiment, the specific matching structure of the left frame 2 and the right frame 3 sliding on the intermediate connecting seat 1 is as follows: a sliding matching through hole 5 is opened horizontally on the upper edge of the intermediate connecting seat 1, and a sliding matching piece 6 that can be inserted into the corresponding port of the sliding matching through hole 5 is provided on the upper right side of the left frame 2 and the upper left side of the right frame 3, and the adjusting shaft 4 is respectively connected to the sliding matching piece 6 of the left frame 2 and the right frame 3 through the transmission assembly. That is, the setting of the sliding matching through hole 5 can effectively limit the longitudinal and vertical relative position between the left frame 2 and the right frame 3.

[0022] At the same time, the transmission assembly can be two synchronous wheels rotating in the middle connecting seat 1, the two synchronous wheels are connected by a synchronous belt transmission, the adjustment shaft 4 rotates synchronously with one of the synchronous wheels, and the left frame 2 and the right frame 3 are respectively connected to the two side edges opposite to the moving direction of the synchronous belt; and in order to effectively reduce costs and ensure the transmission stability of the left frame 2 and the right frame 3, in this embodiment, the specific structure adopted by the transmission assembly is: the transmission assembly includes transmission teeth 7 horizontally arranged on the left frame 2 and the right frame 3, and the transmission teeth 7 of the left frame 2 and the right frame 3 are arranged opposite to each other up and down, and the adjustment shaft 4 is provided with a linkage gear 8 meshing between the two transmission teeth 7.

[0023] Furthermore, the specific setting position of the transmission teeth 7 is as follows: a limit bar hole 9 is opened in the horizontal direction on both the left frame 2 and the right frame 3, and the two limit bar holes 9 partially or completely overlap in the horizontal direction, the adjustment shaft 4 passes through the two limit bar holes 9 in the longitudinal direction, and the transmission teeth 7 are set on the corresponding side walls of the limit bar holes 9.

[0024] In order to reduce the number of parts, the adjusting shaft 4 and the linkage gear 8 are an integrated structure.

[0025] In order to further improve the lateral relative sliding stability between the left frame 2 and the right frame 3, the sliding fitting member 6 extends outward from the corresponding frame. The ends of the two sliding fitting members 6 located in the sliding fitting through hole 5 are overlapped front and back, and avoidance opening grooves 10 which are symmetric left and right and into which the end of the other sliding fitting member 6 can slide and be inserted are formed on the side walls of the two sliding fitting members 6 that overlap and face each other. That is, a lateral movement limiting stroke for the left frame 2 and the right frame 3 is formed between the two avoidance opening grooves 10 and between the two limit strip holes 9.

[0026] In addition, in order to facilitate the operator to rotate and adjust the rotating shaft 4 and enable the rotating shaft 4 to be axially limited on the middle connecting seat 1, the front end of the rotating shaft 4 extends forward beyond the middle connecting seat 1 and is sleeved with an adjusting knob 11. The rear end of the rotating shaft 4 extends backward beyond the middle connecting seat 1 and is provided with an annular groove. An axial limiting ring sleeve 12 that can abut against the rear side wall of the middle connecting seat 1 is sleeved on the annular groove. That is, an axial limit for the rotating shaft 4 on the middle connecting seat 1 is formed between the limiting ring sleeve 12 and the adjusting knob 11. And, in this embodiment, the adjusting knob 11 and the rotating shaft 4 are of an integral structure.

[0027] The above embodiments are only one of the preferred embodiments of the present invention, and do not limit the implementation scope of the present invention. Therefore, all equivalent changes made according to the shape, structure, and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. A frame adjustment assembly of a trial spectacles frame, comprising a main frame, characterized in that: The main mirror frame comprises a middle connecting seat (1), and a left mirror frame (2) and a right mirror frame (3) respectively arranged on two sides of the middle connecting seat (1); the left mirror frame (2) and the right mirror frame (3) are both connected to the middle connecting seat (1) in a transverse sliding manner, and an adjusting shaft (4) is rotatably connected to the middle connecting seat (1); the adjusting shaft (4) drives the left mirror frame (2) and the right mirror frame (3) to move towards or away from each other through a transmission component.

2. The frame adjustment assembly of a trial spectacles frame according to claim 1, characterized in that: A sliding mating through hole (5) is transversely provided on the upper edge of the intermediate connecting seat (1); a sliding mating piece (6) which can be inserted into a corresponding port of the sliding mating through hole (5) is provided on the upper right side of the left mirror frame (2) and the upper left side of the right mirror frame (3); and the adjusting shaft (4) is respectively connected to the sliding mating pieces (6) of the left mirror frame (2) and the right mirror frame (3) through a transmission assembly.

3. A frame adjustment assembly for a trial spectacles frame according to claim 1 or 2, characterized in that: The transmission assembly comprises transmission teeth (7) arranged transversely on the left frame (2) and the right frame (3), and the transmission teeth (7) of the left frame (2) and the right frame (3) are arranged vertically opposite to each other, and the adjusting shaft (4) is sleeved with a linkage gear (8) meshing between the two transmission teeth (7).

4. The frame adjustment assembly of a trial spectacles frame according to claim 3, characterized in that: The left lens frame (2) and the right lens frame (3) are both provided with limit strip holes (9) in the transverse direction, and the two limit strip holes (9) partially or completely overlap in the transverse direction, the adjustment shaft (4) passes through the two limit strip holes (9) in the longitudinal direction, and the transmission teeth (7) are arranged on the corresponding side walls of the limit strip holes (9).

5. The frame adjustment assembly of a trial spectacles frame according to claim 3, characterized in that: The adjusting shaft (4) and the linkage gear (8) are an integrated structure.

6. The frame adjustment assembly of a trial spectacles frame according to claim 2, characterized in that: The sliding fittings (6) are formed by extending outward from the corresponding mirror frame, and the ends of the two sliding fittings (6) located in the sliding fitting through hole (5) are arranged to overlap front and back, and the overlapping opposite side walls of the two sliding fittings (6) are provided with left-right symmetrical avoidance opening grooves (10) for the end of the other sliding fitting (6) to slide into.

7. The frame adjustment assembly of a trial spectacles frame according to claim 1, characterized in that: The front end of the adjusting shaft (4) extends forwardly out of the middle connecting seat (1) and is provided with an adjusting knob (11), and the rear end of the adjusting shaft (4) extends backwardly out of the middle connecting seat (1) and is provided with an annular groove, and a limiting ring sleeve (12) is provided on the annular groove and can abut against the rear side wall of the middle connecting seat (1).

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