CN220271682U - Glasses with adjustable visual angle - Google Patents

Abstract

The utility model discloses glasses with adjustable viewing angles, which include: a frame with a first through hole and a second through hole that are arranged oppositely; a first lens barrel with a first prism capable of interacting with the first through hole; Rotation fit; the second lens barrel has a second prism that can rotate with the second through hole; a linkage structure is provided on the frame and acts on the first lens barrel and the second lens barrel. By rotating the first lens barrel to drive the first prism to rotate relative to the frame, and rotating the second lens barrel to drive the second prism to rotate relative to the frame, the relative positions of the first prism, the second prism and the scene can be adjusted, and the wearer can adjust the relative positions of the first prism and the second prism relative to the scene. The adjustment of the viewing angle while stationary is beneficial to broadening the applicable scope of refractive glasses, and 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. It is helpful to improve the convenience of adjustment.

Description

A kind of glasses with adjustable viewing angle

Technical field

The utility model relates to the technical field of refractive glasses, and in particular to glasses with adjustable viewing angles.

Background technique

Refractive glasses can make the direction of sight form a certain angle with the direction of the scene being viewed, thereby changing the wearer's viewing posture. They are often used in oral treatment to avoid the fatigue caused by the dentist lowering his head for a long time.

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.

Utility model content

In order to overcome the shortcomings and deficiencies in the prior art, the purpose of this utility model is to provide glasses with adjustable viewing angles.

In order to achieve the above purpose, the technical solution of the present invention is as follows:

A kind of glasses with adjustable viewing angle, including:

The mirror frame is provided with a first through hole and a second through hole arranged oppositely;

The first lens barrel has a first prism that can rotate and cooperate with the first through hole;

The second lens barrel has a second prism that can rotate with the second through hole;

A linkage structure is provided on the 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.

Preferably, the linkage structure includes:

A transmission gear, rotatably located at the front end of the frame;

The first gear is 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 meshes with the first gear for transmission through the transmission gear.

Preferably, it also includes:

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.

Preferably, the positioning structure includes:

The elastic arm has a protruding point at its inner end and is provided on the frame. The protruding point can extend into the first through hole;

An annular boss, coaxially located at the inner end of the first gear;

A plurality of grooves are arranged around the outside of the annular boss and can engage with the protrusions.

Preferably, it also includes:

An escape notch is opened 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 escape notch.

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

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

The second lens barrel includes a second front cover and a second back cover. The second gear sleeve is coaxially sleeved on the second front cover. The second front cover and the second back cover can Detachable connection; the second front cover, the second gear, and the second back cover are each provided with a second assembly cavity along the axial direction, and the three second assembly cavities can be spliced to form a space for the second prism. Second assembly slot for assembly.

Preferably, it also includes:

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

Preferably, it also includes:

A wearing structure is provided on the spectacle frame and can fix the spectacle frame on the wearer's head.

Preferably, both the first prism and the second prism are Dove prisms.

The beneficial effect of the utility model is that by rotating the first lens barrel, the first prism is driven to rotate relative to the frame, and the second lens barrel is rotated to drive the second prism to rotate relative to the frame, thereby adjusting the relationship between the first prism, the second prism and the scene. The relative position enables the adjustment of the viewing angle without the wearer moving, which is conducive to broadening the scope of application of refractive glasses, and the linkage structure is used to realize the linkage of the first lens barrel and the second lens barrel to ensure the rotation of the two. The angles are consistent and synchronous rotation is achieved, which is conducive to improving the convenience of adjustment.

Description of drawings

Figure 1 is a schematic structural diagram of an embodiment of the present utility model;

Figure 2 is an exploded view of the embodiment of the present invention.

Shown in the picture:

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

2-the first lens barrel, 21-the first prism, 22-the first front cover, 23-the first back cover, 24-the first assembly cavity;

3-Second lens barrel, 31-Second prism, 32-Second front cover, 33-Second rear cover, 34-Second assembly cavity;

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

5-positioning structure, 51-elastic arm, 511-bump;

6-Soft pads.

Detailed ways

The following describes the embodiments of the present invention in detail with reference to the accompanying drawings, which are for reference and illustration only and do not limit the scope of patent protection of the present utility model.

Please refer to Figures 1-2. In this embodiment, a pair of glasses with adjustable viewing angles includes:

The mirror frame 1 is provided with a first through hole 11 and a second through hole 12 arranged oppositely;

The first lens barrel 2 has a first prism 21 that can rotate and cooperate with the first through hole 11;

The second lens barrel 3 has a second prism 31 that can rotate and cooperate with the second through hole 12;

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 make the The second lens barrel 3 rotates synchronously, or when the second lens barrel 3 rotates, the linkage structure 4 can cause the first lens barrel 2 to rotate synchronously.

In this embodiment, the first prism 21 and the second prism 31 are adjusted by rotating the first lens barrel 2 to drive the first prism 21 to rotate relative to the lens frame 1, and rotating the second lens barrel 3 to drive the second prism 31 to rotate relative to the lens frame 1. The relative position to the scene can thereby adjust the viewing angle without the wearer moving, which is conducive to broadening the scope of application of refractive glasses, and the linkage structure 4 is used to realize the linkage of the first lens barrel 2 and the second lens barrel 3 , ensuring that the rotation angles of the two are consistent and 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 drive the first lens barrel by twisting the first front cover 22. 2 Rotate relative to the first through hole 11, the front end of the second lens barrel 3 passes through the second through hole 12, and the front end of the second front cover 32 is exposed to the frame 1. The wearer can twist the second front cover 32 The second lens barrel 3 is driven to rotate relative to the second through hole 12 .

Preferably, the linkage structure 4 includes:

The transmission gear 41 is rotatably located at the front end of the mirror frame 1;

The first gear 42 is coaxially sleeved on the front end of the first lens barrel 2;

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

In this embodiment, when the first gear 42 rotates, the transmission gear 41 drives the second gear 43 to rotate in the same direction.

Preferably, it also includes:

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.

In this embodiment, the positioning structure 5 is used to prevent the first lens barrel 2 and the second lens barrel 3 from unintentionally rotating. Further preferably, there are two positioning structures 5 , one of which acts on the first lens barrel 2 and the other acts on the second lens barrel 3 . The structures and functions of the two positioning structures 5 are the same and will not be described again here.

Preferably, the positioning structure 5 includes:

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

An annular boss 421 is coaxially provided at the inner end of the first gear 42;

A plurality of grooves 422 are arranged around the outside of the annular boss 421 and can engage with the protrusions 511 .

In this embodiment, when the first gear 42 rotates, the annular boss 421 is driven to rotate relative to the first through hole 11 . When rotating, the annular boss 421 acts on the elastic arm 51 to elastically deform it until the groove 422 When rotating to the protruding point 511, the elastic arm 51 restores its shape so that the protruding point 511 snaps into the groove 422, so that the first lens barrel 2 maintains the current rotation angle. It is further preferred that the protruding point 511 is a spherical protruding point 511. The groove 422 is a semi-arc groove 422, which is convenient for the user to rotate. In this embodiment, there are eight protruding points 511 in total, and the eight protruding points 511 are arranged in a circle on the annular boss 421, and the included angle between adjacent protruding points 511 is 45°.

Preferably, it also includes:

The escape notch 13 is opened on the side of the first through hole 11 . The outer end of the elastic arm 51 is fixed on the mirror frame 1 and the inner end is located in the escape notch 13 .

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

Preferably, the elastic arm 51 includes a first arc segment and a second arc segment connected in sequence from outside to inside, and the protruding point 511 is provided on the second arc segment away from the first arc segment. one end. It is beneficial to improve the strength of the elastic arm 51 and reduce the occurrence of breakage.

Preferably, the first lens barrel 2 includes a first front cover 22 and a first back cover 23. The first gear 42 is coaxially sleeved on the first front cover 22. The first front cover 22 and the first back cover 23 are detachably connected; the first front cover 22, the first gear 42, and the first back cover 23 are respectively provided with a first assembly cavity 24 along the axial direction. The first assembly cavity 24 can be spliced to form a first assembly groove for the first prism 21 to be assembled;

The second lens barrel 3 includes a second front cover 32 and a second rear cover 33. The second gear 43 is coaxially sleeved on the second front cover 32. The second front cover 32 and the The second back cover 33 is detachably connected; the second front cover 32, the second gear 43, and the second back cover 33 are respectively provided with second assembly cavities 34 along the axial direction. The assembly cavities 34 can be spliced to form a second assembly slot for assembly of the second prism 31 .

In this embodiment, the first front cover 22 and the first back cover 23 are fixed by screws, and the second front cover 32 and the second back cover 33 are fixed by screws. The front end ring of the first assembly cavity 24 of the first front cover 22 is provided with a first limiting edge, and the rear end ring of the first assembly cavity 24 of the first rear cover 23 is provided with a second limiting edge. The first prism The front end of 21 is against the first limiting edge, and the rear end is against the second limiting edge; the second unprecedented front end ring of the second front cover 32 is provided with a third limiting edge, and the second unprecedented front end ring of the second rear cover 33 is provided with a third limiting edge. The rear end ring is provided with a fourth limiting edge, the front end of the second prism 31 offsets the third limiting edge, and the rear end offsets the fourth limiting edge.

Preferably, it also includes:

Soft protective pad 6. The mirror frame 1 is a cover-shaped body with an open rear end. The soft protective pad 6 is embedded in the inner cavity of the mirror frame 1.

In this embodiment, the inner side of the soft protective pad 6 is provided with a depression that matches the brow and the bridge of the nose. The soft protective pad 6 is made of silicone. It is further preferred that the surface of the soft protective pad 6 is covered with Lycra fabric, and the Lycra fabric has Soft, breathable, moisture-absorbent, sweat-wicking, quick-drying, and easy to clean.

Preferably, it also includes:

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

In this embodiment, the wearing structure is an elastic cord provided on the frame 1, and the elastic cord is provided with a Japanese buckle for adjusting the tightness.

Preferably, the first prism 21 and the second prism 31 are Dove prisms.

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°, thereby achieving a visual inversion effect.

The above disclosures are only preferred embodiments of the present utility model and cannot be used to limit the scope of protection of the present utility model. Therefore, equivalent changes made to the patent scope of the present utility model are still covered by the present utility model. scope.

Claims (10)

1. An adjustable viewing angle eyeglass comprising:

the mirror frame is provided with a first through hole and a second through hole which are oppositely arranged;

the first lens barrel is provided with a first prism and can be in rotating fit with the first through hole;

the second lens barrel is provided with a second prism and can be in running fit with the second through hole;

the linkage structure is arranged on the mirror frame and acts on the first lens cone and the second lens cone; the linkage structure may allow the second barrel to rotate synchronously when the first barrel rotates, or may allow the first barrel to rotate synchronously when the second barrel rotates.

2. The adjustable viewing angle eyewear of claim 1, wherein the linkage comprises:

the transmission gear is rotatably arranged at the front end of the mirror frame;

the first gear is coaxially sleeved at the front end of the first lens barrel;

the second gear is coaxially sleeved at the front end of the second lens barrel and is meshed with the first gear through the transmission gear for transmission.

3. The adjustable viewing angle eyewear of claim 2, further comprising:

the positioning structure is arranged in the first through hole, acts on the first gear and can keep the first lens cone and the first through hole relatively static.

4. A pair of viewing angle adjustable spectacles according to claim 3, wherein the locating structure comprises:

the inner end of the elastic arm is provided with a convex point which is arranged on the mirror frame and can extend into the first through hole;

the annular boss is coaxially arranged at the inner end of the first gear;

and the grooves are annularly arranged on the outer side of the annular boss and can be clamped with the convex points.

5. The adjustable viewing angle eyewear of claim 4, further comprising:

the avoidance notch is formed in the side part of the first through hole, the outer end of the elastic arm is fixed to the mirror frame, and the inner end of the elastic arm is located in the avoidance notch.

6. The pair of visual angle adjustable spectacles of claim 5, wherein the elastic arm comprises a first arc section and a second arc section which are sequentially connected from outside to inside, and the protruding point is arranged at one end of the second arc section far away from the first arc section.

7. The pair of visual angle adjustable glasses according to claim 2, wherein 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 a first assembly cavity 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 cone comprises 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.

8. The adjustable viewing angle eyewear of claim 1, further comprising:

the soft protection pad is characterized in that the mirror frame is a cover-shaped body with an open rear end, and the soft protection pad is embedded in the inner cavity of the mirror frame.

9. The adjustable viewing angle eyewear of claim 1, further comprising:

and a wearing structure arranged on the glasses frame and capable of fixing the glasses frame on the head of a wearer.

10. The adjustable viewing angle eyeglass of claim 1, wherein the first prism and the second prism are dove prisms.