Glasses having adjustable viewing angle

Abstract

Disclosed in the present utility model is a pair of glasses having an adjustable viewing angle. The glasses comprise a glasses frame, which is provided with a first through hole and a second through hole, which are arranged opposite each other; a first prism barrel, which is provided with a first prism and can be in rotation fit with the first through hole; a second prism barrel, which is provided with a second prism and can be in rotation fit with the second through hole; and a linkage structure, which is arranged on the glasses frame and acts on the first prism barrel and the second prism barrel. The first prism barrel is rotated to drive the first prism to rotate relative to the glasses frame, and the second prism barrel is rotated to drive the second prism to rotate relative to the glasses frame, such that relative positions between the first prism and the second prism and a scene are adjusted, and thus a wearer can adjust the viewing angle without moving, which is conducive to extending an application range of refractive glasses; moreover, linkage between the first prism barrel and the second prism barrel is realized by using the linkage structure, such that the consistency of rotation angles of the first prism barrel and the second prism barrel is ensured and synchronous rotation is also realized, thereby being conducive to improving the convenience for adjustment.

Description

Glasses with adjustable viewing angle Technical Field

[0001] The utility model relates to the technical field of refractive glasses, in particular to a pair of glasses with adjustable viewing angles. Background Art

[0002] Refractive glasses can make the direction of sight form a certain angle with the direction of the viewed object, thereby changing the wearer's viewing posture. For example, they are often used in oral treatment to avoid fatigue caused by dentists lowering their heads for a long time. Technical issues

[0003] In the prior art, the prism is fixed on the frame. When the viewing angle needs to be adjusted, the wearer needs to move relative to the scene, thereby changing the relative position of the prism and the scene to achieve the effect of adjusting the viewing angle, which is inconvenient to use. Technical Solutions

[0004] In order to overcome the shortcomings and deficiencies in the prior art, the present invention aims to provide glasses with adjustable viewing angles.

[0005] To achieve the above purpose, the technical solution of the utility model is as follows:

[0006] A pair of glasses with adjustable viewing angle, comprising:

[0007] The mirror frame is provided with a first through hole and a second through hole which are oppositely arranged;

[0008] a first lens barrel having a first prism capable of rotating in engagement with the first through hole;

[0009] a second lens barrel having a second prism capable of rotatably engaging with the second through hole;

[0010] A linkage structure is provided on the lens frame and acts on the first lens barrel and the second lens barrel; when the first lens barrel rotates, the linkage structure can cause the second lens barrel to rotate synchronously, or when the second lens barrel rotates, the linkage structure can cause the first lens barrel to rotate synchronously.

[0011] Preferably, the linkage structure includes:

[0012] A transmission gear rotatably disposed at the front end of the frame;

[0013] a first gear coaxially sleeved on the front end of the first lens barrel;

[0014] The second gear is coaxially sleeved on the front end of the second lens barrel and is meshed with the first gear through the transmission gear for transmission.

[0015] Preferably, it also includes:

[0016] A positioning structure is provided in the first through hole and acts on the first gear to keep the first lens barrel and the first through hole relatively stationary.

[0017] Preferably, the positioning structure includes:

[0018] an elastic arm, with a protrusion at the inner end thereof, disposed on the frame, the protrusion being capable of extending into the first through hole;

[0019] an annular boss, coaxially disposed on the inner end of the first gear;

[0020] A plurality of grooves are arranged on the outer side of the annular boss and can be engaged with the convex points.

[0021] Preferably, it also includes:

[0022] An avoidance gap is provided on the side of the first through hole, the outer end of the elastic arm is fixed on the frame, and the inner end is located in the avoidance gap.

[0023] Preferably, the elastic arm includes a first arc segment and a second arc segment connected in sequence from the outside to the inside, and the convex point is provided at an end of the second arc segment away from the first arc segment.

[0024] Preferably, the first lens barrel includes a first front cover and a first rear cover, the first gear sleeve is coaxially sleeved on the first front cover, and the first front cover and the first rear cover are detachably connected; the first front cover, the first gear, and the first rear cover are respectively provided with a first assembly cavity along the axial direction, and the three first assembly cavities can be spliced ​​to form a first assembly slot for assembling the first prism;

[0025] The second lens barrel includes a second front cover and a second rear cover, the second gear sleeve is coaxially sleeved on the second front cover, and the second front cover and the second rear cover are detachably connected; the second front cover, the second gear, and the second rear cover are respectively provided with a second assembly cavity along the axial direction, and the three second assembly cavities can be spliced ​​to form a second assembly groove for assembling the second prism.

[0026] Preferably, it also includes:

[0027] The soft protective pad is a cover-shaped body with an open rear end, and the soft protective pad is embedded in the inner cavity of the frame.

[0028] Preferably, it also includes:

[0029] The wearing structure is arranged on the frame and can fix the frame to the wearer's head.

[0030] Preferably, the first prism and the second prism are both Dove prisms. Beneficial effects

[0031] The beneficial effect of the present invention is that the first prism is driven to rotate relative to the frame by rotating the first lens barrel, and the second prism is driven to rotate relative to the frame by rotating the second lens barrel, thereby adjusting the relative positions of the first prism, the second prism and the scenery, and thus the viewing angle can be adjusted without the wearer moving, which is beneficial to broadening the scope of application of refractive glasses. In addition, the linkage structure is used to realize the linkage between the first lens barrel and the second lens barrel, ensuring that the rotation angles of the two are consistent and synchronous rotation is achieved, which is beneficial to improving the convenience of adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] FIG1 is a schematic structural diagram of an embodiment of the present invention;

[0033] FIG2 is an exploded view of an embodiment of the present invention.

[0034] As shown in the figure:

[0035] 1-mirror frame, 11-first through hole, 12-second through hole, 13-avoidance gap;

[0036] 2-first lens barrel, 21-first prism, 22-first front cover, 23-first rear cover, 24-first assembly cavity;

[0037] 3-second lens barrel, 31-second prism, 32-second front cover, 33-second rear cover, 34-second assembly cavity;

[0038] 4- linkage structure, 41- transmission gear, 42- first gear, 421- annular boss, 422- groove, 43- second gear;

[0039] 5-positioning structure, 51-elastic arm, 511-protrusion;

[0040] 6-Soft pad. Best Mode for Carrying Out the Invention

[0041] The following specifically illustrates the implementation of the present invention in conjunction with the accompanying drawings. The accompanying drawings are for reference and illustration only and do not constitute a limitation on the scope of patent protection of the present invention.

[0042] Referring to FIG. 1 and FIG. 2 , in this embodiment, a pair of glasses with adjustable viewing angles includes:

[0043] The frame 1 is provided with a first through hole 11 and a second through hole 12 which are oppositely arranged;

[0044] The first lens barrel 2 has a first prism 21 and can be rotatably engaged with the first through hole 11;

[0045] The second lens barrel 3 has a second prism 31 and can be rotatably engaged with the second through hole 12;

[0046] The linkage structure 4 is provided on the lens frame 1 and acts on the first lens barrel 2 and the second lens barrel 3; when the first lens barrel 2 rotates, the linkage structure 4 can cause the second lens barrel 3 to rotate synchronously, or when the second lens barrel 3 rotates, the linkage structure 4 can cause the first lens barrel 2 to rotate synchronously.

[0047] In this embodiment, the first lens barrel 2 is rotated to drive the first prism 21 to rotate relative to the frame 1, and the second lens barrel 3 is rotated to drive the second prism 31 to rotate relative to the frame 1, thereby adjusting the relative positions of the first prism 21, the second prism 31 and the scene, thereby adjusting the viewing angle without the wearer moving, which is beneficial to broadening the scope of application of refractive glasses. In addition, the linkage structure 4 is used to achieve the linkage between the first lens barrel 2 and the second lens barrel 3, ensuring that the rotation angles of the two are consistent while achieving synchronous rotation, which is beneficial to improving the convenience of adjustment. In this embodiment, the front end of the first lens barrel 2 passes through the first through hole 11, and the first front cover 22 is exposed at the front end of the frame 1. The wearer can rotate the first lens barrel 2 relative to the first through hole 11 by twisting the first front cover 22. The front end of the second lens barrel 3 passes through the second through hole 12, and the second front cover 32 is exposed at the front end of the frame 1. The wearer can rotate the second lens barrel 3 relative to the second through hole 12 by twisting the second front cover 32.

[0048] Preferably, the linkage structure 4 includes:

[0049] A transmission gear 41 is rotatably disposed at the front end of the lens frame 1;

[0050] A first gear 42 is coaxially sleeved on the front end of the first lens barrel 2;

[0051] The second gear 43 is coaxially sleeved on the front end of the second lens barrel 3 and is meshed with the first gear 42 through the transmission gear 41 for transmission.

[0052] In this embodiment, when the first gear 42 rotates, the second gear 43 is driven to rotate in the same direction via the transmission gear 41 .

[0053] Preferably, it also includes:

[0054] The positioning structure 5 is provided in the first through hole 11 and acts on the first gear 42 to keep the first lens barrel 2 and the first through hole 11 relatively stationary.

[0055] In this embodiment, the positioning structure 5 is used to prevent the first lens barrel 2 and the second lens barrel 3 from rotating unintentionally. Further preferably, two positioning structures 5 are provided, one acting on the first lens barrel 2 and the other acting on the second lens barrel 3. The two positioning structures 5 have the same structure and function, and will not be described in detail here.

[0056] Preferably, the positioning structure 5 includes:

[0057] The elastic arm 51 has a protrusion 511 at its inner end, which is provided on the frame 1. The protrusion 511 can extend into the first through hole 11;

[0058] an annular boss 421 coaxially disposed on the inner end of the first gear 42;

[0059] A plurality of grooves 422 are arranged around the outer side of the annular boss 421 and can be engaged with the protrusions 511 .

[0060] In this embodiment, when the first gear 42 rotates, the annular boss 421 rotates relative to the first through hole 11. During rotation, the annular boss 421 acts on the elastic arm 51, causing it to elastically deform until the groove 422 rotates to the protrusion 511. The elastic arm 51 restores its shape and the protrusion 511 is snapped into the groove 422, thereby maintaining the current rotation angle of the first lens barrel 2. Further preferably, the protrusion 511 is a spherical protrusion 511 and the groove 422 is a semi-arc groove 422, which facilitates user rotation. In this embodiment, there are eight protrusions 511, which are arranged in a circle on the annular boss 421, and the angle between adjacent protrusions 511 is 45°.

[0061] Preferably, it also includes:

[0062] The avoidance gap 13 is provided on the side of the first through hole 11 . The outer end of the elastic arm 51 is fixed to the frame 1 , and the inner end is located in the avoidance gap 13 .

[0063] In this embodiment, the avoidance gap 13 is used to provide deformation space for the elastic arm 51 .

[0064] Preferably, the elastic arm 51 includes a first arc segment and a second arc segment connected in sequence from the outside to the inside, and the protrusion 511 is provided at the end of the second arc segment away from the first arc segment, which is conducive to improving the strength of the elastic arm 51 and reducing the possibility of breakage.

[0065] Preferably, the first lens barrel 2 includes a first front cover 22 and a first rear cover 23, the first gear 42 is coaxially sleeved on the first front cover 22, and the first front cover 22 and the first rear cover 23 are detachably connected; the first front cover 22, the first gear 42, and the first rear cover 23 are respectively provided with a first assembly cavity 24 along the axial direction, and the three first assembly cavities 24 can be spliced ​​to form a first assembly groove for assembling the first prism 21;

[0066] The second lens barrel 3 includes a second front cover 32 and a second rear cover 33, and the second gear 43 is coaxially sleeved on the second front cover 32. The second front cover 32 and the second rear cover 33 are detachably connected; the second front cover 32, the second gear 43, and the second rear cover 33 are respectively provided with a second assembly cavity 34 along the axial direction, and the three second assembly cavities 34 can be spliced ​​to form a second assembly groove for assembling the second prism 31.

[0067] In this embodiment, the first front cover 22 and the first rear cover 23 are fixed by screws, and the second front cover 32 and the second rear cover 33 are fixed by screws. The front end of the first assembly cavity 24 of the first front cover 22 is surrounded by a first limiting edge, and the rear end of the first assembly cavity 24 of the first rear cover 23 is surrounded by a second limiting edge. The front end of the first prism 21 abuts against the first limiting edge, and the rear end abuts against the second limiting edge. The second front end of the second front cover 32 is surrounded by a third limiting edge, and the second rear end of the second rear cover 33 is surrounded by a fourth limiting edge. The front end of the second prism 31 abuts against the third limiting edge, and the rear end abuts against the fourth limiting edge.

[0068] Preferably, it also includes:

[0069] The soft protective pad 6 is a cover-shaped body with an open rear end, and the soft protective pad 6 is embedded in the inner cavity of the frame 1.

[0070] In this embodiment, the inner side of the soft pad 6 is provided with a depression adapted to the eyebrows and the bridge of the nose. The soft pad 6 is made of silicone. Further preferably, the surface of the soft pad 6 is covered with Lycra fabric, which has the advantages of being soft, breathable, moisture-absorbent, perspiration-wicking, quick-drying and easy to clean.

[0071] Preferably, it also includes:

[0072] The wearing structure is provided on the frame 1 and can fix the frame 1 on the wearer's head.

[0073] In this embodiment, the wearing structure is an elastic cord provided on the frame 1, and a Japanese-style buckle for adjusting the tightness is provided on the elastic cord.

[0074] Preferably, both the first prism 21 and the second prism 31 are Dove prisms.

[0075] In this embodiment, the dove prism is an image rotator. After the light passes through the first prism 21 and the second prism 31, the image can be inverted by 180 degrees, thereby achieving a visual inversion effect.

[0076] The above disclosure is only a preferred embodiment of the present invention and cannot be used to limit the scope of protection of the present invention. Therefore, equivalent changes made within the scope of the patent application of the present invention are still within the scope covered by the present invention.

Claims

1. A pair of glasses with adjustable viewing angle, characterized in that: include: The mirror frame is provided with a first through hole and a second through hole which are arranged opposite to each other; A first lens barrel having a first prism capable of rotatably cooperating with the first through hole; A second lens barrel, having a second prism, capable of rotatably cooperating with the second through hole; A linkage structure, provided on the lens frame, acting on the first lens barrel and the second lens barrel; When the first lens barrel rotates, the linkage structure can cause the second lens barrel to rotate synchronously, or when the second lens barrel rotates, the linkage structure can cause the first lens barrel to rotate synchronously.

2. The eyeglasses with adjustable viewing angle according to claim 1, characterized in that: The linkage structure includes: A transmission gear rotatably disposed at the front end of the mirror frame; A first gear coaxially sleeved on the front end of the first lens barrel; The second gear is coaxially sleeved on the front end of the second lens barrel and is meshed with the first gear through the transmission gear for transmission.

3. The eyeglasses with adjustable viewing angle according to claim 2, characterized in that: Also includes: The positioning structure is disposed in the first through hole and acts on the first gear to keep the first lens barrel and the first through hole relatively still.

4. The eyeglasses with adjustable viewing angle according to claim 3, characterized in that: The positioning structure comprises: An elastic arm, with a protrusion at the inner end, disposed on the mirror frame, and the protrusion can extend into the first through hole; an annular boss, coaxially disposed on the inner end of the first gear; A plurality of grooves are arranged around the outer side of the annular boss and can be engaged with the convex points.

5. The eyeglasses with adjustable viewing angle according to claim 4, characterized in that: Also includes: An avoidance gap is provided on the side of the first through hole, the outer end of the elastic arm is fixed on the mirror frame, and the inner end is located in the avoidance gap.

6. The eyeglasses with adjustable viewing angle according to claim 5, characterized in that: The elastic arm comprises a first arc segment and a second arc segment which are sequentially connected from the outside to the inside, and the convex point is arranged at an end of the second arc segment away from the first arc segment.

7. The eyeglasses with adjustable viewing angle according to claim 2, characterized in that: The first lens barrel comprises a first front cover and a first rear cover, the first gear sleeve is coaxially sleeved on the first front cover, and the first front cover and the first rear cover are detachably connected; the first front cover, the first gear, and the first rear cover are respectively provided with first assembly cavities along the axial direction, and the three first assembly cavities can be spliced ​​to form a first assembly groove for assembling the first prism; The second lens barrel includes a second front cover and a second rear cover, the second gear sleeve is coaxially sleeved on the second front cover, and the second front cover and the second rear cover are detachably connected; the second front cover, the second gear, and the second rear cover are respectively provided with second assembly cavities along the axial direction, and the three second assembly cavities can be spliced ​​to form a second assembly groove for assembling the second prism.

8. The eyeglasses with adjustable viewing angle according to claim 1, characterized in that: Also includes: The soft protective pad is a cover-shaped body with an open rear end, and the soft protective pad is embedded in the inner cavity of the frame.

9. The eyeglasses with adjustable viewing angle according to claim 1, characterized in that: Also includes: The wearing structure is arranged on the frame and can fix the frame to the head of the wearer.

10. The glasses with adjustable viewing angle according to claim 1, characterized in that: The first prism and the second prism are both Dove prisms.

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