CN217443669U

CN217443669U - Automatic glasses leg folding structure and intelligent glasses

Info

Publication number: CN217443669U
Application number: CN202123231961.8U
Authority: CN
Inventors: 梁文锦; 郑涛; 李旸
Original assignee: Beijing Kingfisher Vision Technology Co ltd
Current assignee: Beijing Kingfisher Vision Technology Co ltd
Priority date: 2021-12-21
Filing date: 2021-12-21
Publication date: 2022-09-16
Anticipated expiration: 2031-12-21

Abstract

The utility model provides an automatic receipts of mirror leg are closed structure and intelligent glasses, wherein, should receive the receipts and close the device including preceding shell and receipts, the terminal inboard of preceding shell is equipped with a stiff end, receives the device and includes expansion end, spring shaft and spring to close, and the expansion end can rotate for the stiff end, still has a accommodation space in the expansion end, and the first end shaping of spring shaft has first stopper, and the second end of spring shaft is articulated with the fixed end. The spring is sleeved on the spring shaft, the first end of the spring is limited by the first limiting block, and the spring rotates relative to the fixed end along with the movable end to obtain or release elastic potential energy. The utility model discloses utilize the spring to make the mirror leg be in all the time and expand or totally closed stable position under the condition that does not have external force interference, the user of being convenient for uses, and the mirror leg has the surplus that continues to expand the activity to the outside for the front shell, can enlarge suitable crowd scope according to the angle that opens of user's head type size self-adaptation regulation mirror leg, improves user experience.

Description

Automatic glasses leg folding structure and intelligent glasses

Technical Field

The utility model belongs to the technical field of glasses accessories manufacture technique and specifically relates to an automatic structure and intelligent glasses of receiving of receipts of mirror leg.

Background

With the continuous development and progress of wearable devices, the types and functions of intelligent glasses such as Augmented Reality (AR) glasses, Virtual Reality (VR) glasses, Mixed Reality (MR) glasses and the like are developed towards diversification, and the popularization degree is also higher and higher. For conveniently carrying and reducing the volume that occupies when glasses are accomodate, some intelligent glasses are with the mirror leg design for can expanding and can receive the form of closing, before wearing, the user need manually about the mirror leg respectively from closing the position stir 90 degrees to the expansion position to the outside, when wearing, two mirror legs centre gripping respectively on the left side and the right side of head to overlap joint respectively on left ear and auris dextra, fix the definite position at relative head with intelligent glasses with the holding power through clamping-force and the holding power of ear. After the user takes off intelligent glasses, need manually fold the mirror leg of both sides respectively to the inboard 90 degrees of folding to the receipts position from the expansion position to the shared space when reducing and accomodating. The foldable glasses legs are applied to the intelligent glasses, a user needs to manually fold the glasses legs before and after each use, and the user needs to turn the directions of the glasses legs to 90 degrees in place, so that the intelligent equipment such as the intelligent glasses is obviously not convenient enough, and the conventional glasses also have the problem.

In addition, the width of the foldable glasses legs after being unfolded is fixed, so that the foldable glasses legs can only be used by users with the head width close to the width of the opened glasses legs, the holding force of the glasses legs is too large, the users feel uncomfortable, and the glasses legs are not sufficiently held and are completely separated from the two sides of the head, so that the glasses are easy to fall off. Therefore, the width of the head of the user is too large or too small compared with the width of the opened temples, which reduces the wearing comfort and the use intention of the user. Conventional glasses can also obtain the mirror leg through the elasticity of spectacle frame material itself and continue outwards open the allowance for movement to a certain extent, but intelligent glasses is owing to install a plurality of precision components and parts, and major structure relatively fixed, the allowance for movement that can provide is less, can't be applicable to the user that the head size is different.

Therefore, how to improve the folding convenience of the temples and adapt to users of various head sizes is a big problem that needs to be solved currently by the smart glasses.

The statements in the background section are merely prior art as they are known to the inventors and do not, of course, represent prior art in this field.

SUMMERY OF THE UTILITY MODEL

To one or more defects among the prior art, the utility model provides an automatic receipts of mirror leg are closed structure for the mirror leg has automatic expansion and automatic closed function, when simplifying user operation, can also make the mirror leg keep at the totally closed or totally open steady position, and the maximize is avoided the mirror leg and the hookup location of mirror leg and preceding shell to damage, and provides the surplus of moving about for the continuation rotation of preceding shell of mirror leg, in order to be applicable to the user of different head sizes. The utility model also provides an use the automatic intelligent glasses that receive and close the structure of aforementioned mirror leg.

In order to solve the technical problem, the utility model discloses a following technical scheme:

an automatic glasses leg folding structure comprises:

the inner side of the tail end of the front shell is provided with a fixed end; and

a folding device, the folding device comprising:

the movable end is configured to rotate relative to the fixed end, and an accommodating space is formed in the movable end;

the spring shaft is positioned in the accommodating space and is provided with a first end and a second end opposite to the first end, a first limiting block is formed at the first end of the spring shaft, and the second end of the spring shaft is hinged with the fixed end; and

the spring is provided with a first end and a second end opposite to the first end, the spring is sleeved on the spring shaft, the first end of the spring is limited by the first limiting block, and the spring rotates relative to the fixed end along with the movable end to obtain or release elastic potential energy.

According to an aspect of the present invention, the fixed end is formed as a first L-shaped curved surface by pressing close to one side of the movable end, the movable end is formed as a slanted plane by pressing close to one side of the fixed end, when the movable end rotates around the hinge position of the spring shaft and the fixed end, the slanted plane and the first L-shaped curved surface are tangent to a tangent line, and when the tangent line moves toward the turning point of the first L-shaped curved surface, the elastic potential energy of the spring increases; when the tangent line moves from the turning part of the first L-shaped curved surface to two sides, the elastic potential energy of the spring is reduced.

According to the utility model discloses an aspect, wherein the second end shaping of spring shaft have a spacing groove and the terminal shaping in the outside of first L type curved surface has second L type curved surface, second L type curved surface provides space when the expansion end rotates to the outside, the stiff end have with spacing groove matched with second stopper, the spacing groove with the second stopper cooperatees, the expansion end compare in when the stiff end rotates to the outside at second L type curved surface within range, the elastic potential energy of spring increase and rotation range by the spacing groove with the second stopper is injectd.

According to an aspect of the present invention, the folding device further includes a limiting sleeve, the limiting sleeve is sleeved on the spring shaft, the limiting sleeve has a first end and a second end opposite to the first end, and the first end of the limiting sleeve abuts against the second end of the spring; and a third limiting block is arranged in the accommodating space and is abutted against the second end of the limiting sleeve.

According to the utility model discloses an aspect, wherein it still includes the spring briquetting to receive the closing device, the spring briquetting with expansion end fixed connection to the pressure is located on the stop collar.

According to the utility model discloses an aspect, wherein be equipped with on the stop collar with spring briquetting assorted recess.

According to the utility model discloses an aspect still includes the mirror leg, the mirror leg with expansion end fixed connection.

According to an aspect of the utility model, wherein the expansion end with mirror leg integrated into one piece.

According to an aspect of the utility model, wherein the spring axle has a plurality of parallel arrangement, and every the epaxial all cover of spring is equipped with the spring with the stop collar.

According to the utility model discloses an aspect, a smart glasses, include:

the automatic glasses leg folding structure is as described above.

Compared with the prior art, the utility model provides an automatic structure of receiving of mirror leg is closed utilizes the elastic deformation of spring to drive the expansion end motion, and then drives the mirror leg and makes it be in the stable position that expandes completely or closed completely all the time under the circumstances of no external force interference, and convenient to use user uses and accomodates, and the maximize is avoided external force to lead to structural damage. And simultaneously, the utility model provides a mirror leg has the surplus that continues to expand to the outside for preceding shell, can enlarge suitable crowd's scope according to the angle that opens of user's head form size self-adaptation regulation mirror leg, improves user experience. The utility model also provides an intelligent glasses uses the automatic structure of receiving of aforementioned mirror leg.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is an exploded schematic view of one embodiment of the present invention;

fig. 2 is an exploded view of a folding device according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a fixed end under a viewing angle in an embodiment of the present invention;

fig. 4A is a schematic structural diagram of a movable end at a viewing angle according to an embodiment of the present invention;

fig. 4B is a schematic structural diagram of the movable end at another viewing angle according to an embodiment of the present invention;

FIG. 5 is a schematic view of the engagement between the position-limiting sleeve and the spring pressing block according to an embodiment of the present invention;

fig. 6 is a schematic view of the temple in a different position according to an embodiment of the invention.

Description of reference numerals: 1-automatic folding structure of glasses legs; 10-front shell; 11-a fixed end; 111-a first L-shaped curved surface; 112-a second L-shaped curved surface; 113-a second stopper; 114-inflection point; 20-a folding device; 21-a movable end; 211-an accommodating space; 212-first inclined plane; 213-a third stopper; 22-a spring shaft; 221-a first stopper; 222-a limit groove; 23-a spring; 24-a stop collar; 25-a spring press block; 30-a temple; 31-a veneer; 1110-the outer region; 1111-the medial region; 1112-fully deployed stable position; 1113-fully closed stable position.

Detailed Description

In the following, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. Accordingly, the drawings and description are to be regarded as illustrative in nature, and not as restrictive.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the description of the present invention, it should be noted that unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection, either mechanically, electrically, or in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.

The following disclosure provides many different embodiments or examples for implementing different features of the invention. In order to simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or reference letters in the various examples, which have been repeated for purposes of simplicity and clarity and do not in themselves dictate a relationship between the various embodiments and/or arrangements discussed. In addition, the present disclosure provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Fig. 1 shows a structure of an automatic folding structure 1 for a temple according to an embodiment of the present invention, and fig. 2 shows a detailed structure of a folding device 20 according to an embodiment of the present invention, which is described in detail below with reference to fig. 1 and 2.

As shown in fig. 1 and 2, the automatic glasses leg folding structure 1 includes a front shell 10 and a folding device 20, wherein a fixed end 11 is disposed at an inner side of a terminal of the front shell 10, the front shell 10 is a structure located right in front of eyes of a user when wearing smart glasses, and in the smart glasses of this case, the front shell 10 is an outer shell of the smart glasses, in which a near-to-eye display screen, a core processing element, and the like are installed. The end of the front shell 10 refers to a connection position of the front shell 10 and the temple 30, in the existing ordinary glasses and the intelligent glasses, the end of the front shell 10 and the temple 30 are usually connected in a hinged manner, and the temple 30 is erected on the left and right ears after being opened by 90 degrees relative to the front shell 10 so as to be conveniently worn by a user. According to the utility model discloses an embodiment, stiff end 11 can be fixed the setting through modes such as bolt or buckle with preceding shell 10, also can adopt sticky fixed or integrated into one piece's mode fixed.

As shown in fig. 2, the folding device 20 includes a movable end 21, a spring shaft 22 and a spring 23, wherein the movable end 21 can rotate relative to the fixed end 11, and the movable end 21 has a receiving space 211 therein for receiving the spring shaft 22 and limiting the spring shaft 22 in the receiving space 211 to prevent the spring shaft 22 from being disengaged from the movable end 21. The receiving space 211 may be a strip-shaped groove with two open ends as shown in fig. 4A, and the width of the groove is slightly larger than the diameter of the spring 23. The spring shaft 22 has a first end and a second end opposite to the first end, and the second end of the spring shaft 22 is hinged to the fixed end 11, and when the movable end 21 rotates relative to the fixed end 11, the spring shaft 22 is driven to rotate relative to the fixed end 11. As shown in fig. 2, the first stopper 221 may be configured in a shape having a width greater than a diameter of the spring 23, and the first stopper 221 may be welded and fixed to the first end of the spring shaft 22 or integrally formed with the spring shaft 22, for example, in actual implementation, it is preferable to press the first stopper 221 on the first end of the spring shaft 22 through a rolling process.

As shown in fig. 1 and fig. 2, the spring 23 in this embodiment is a coil spring, and has a first end and a second end opposite to the first end, the spring 23 is sleeved on the spring shaft 22, the first end of the spring 23 is limited by the first limit block 221, the second end of the spring 23 can move along the axial direction of the spring shaft 22, and the spring 23 is elastically deformed to obtain or release elastic potential energy, for example, as shown in fig. 4A, a third limit block 213 is disposed in the accommodating space 211 of the movable end 21, and the second end of the spring 23 abuts against the third limit block 213. When the movable end 21 rotates relative to the fixed end 11, the spring shaft 22 rotates relative to the fixed end 11, the third stopper 213 limits the limit position of the second end of the spring 23 to compress the spring 23, the deformation amount of the spring 23 changes with the rotation position, and the spring 23 obtains or releases elastic potential energy.

According to the utility model discloses a preferred embodiment, closing device 20 still includes stop collar 24, stop collar 24 cover is established on spring shaft 22, stop collar 24 can be followed spring shaft 22 axial displacement, stop collar 24 has first end and the second end relative with first end, the first end of stop collar 24 and the second end butt of spring 23, compare with last embodiment, this embodiment has increased not elastic stop collar 24, so third stopper 213 is through the extreme position of limiting stop collar 24's position and the indirect restriction spring 23's of second end, on the one hand, stop collar 24 receives can move and compress spring 23 to the direction at spring 23 place after the pressure from third stopper 213, on the other hand, spring 23 can produce after compressing with the elasticity that is compressed the opposite direction, this elasticity can make stop collar 24's second end and third stopper 213 butt.

According to a preferred embodiment of the present invention, the folding device 20 further comprises a spring pressing block 25, and the spring pressing block 25 is fixedly connected with the movable end 21, for example, fixed by a bolt. As shown in fig. 5, the spring pressing block 25 is pressed on the position-limiting sleeve 24, and functions to provide a lateral pressure to press the position-limiting sleeve 24, so as to indirectly provide the lateral pressure to the spring shaft 22, prevent the lateral pressure generated by the spring shaft 22 during the rotation process from being concentrated on the contact position of the first end of the spring shaft 22 and the movable end 21, prevent the spring shaft 22 from being separated from the accommodating space 211 from the lateral direction, and improve the structural reliability. As shown in fig. 5, the spring pressing piece 25 may be fixed to the movable end 21 by a bolt, and when the movable end 21 rotates, the spring pressing piece 25 rotates. Further, according to the utility model discloses a preferred embodiment, as shown in fig. 5, be equipped with on the stop collar 24 with spring pressing block 25 assorted recess, for example be the annular groove, spring pressing block 25 can the joint in the recess, prevents that spring pressing block 25 and stop collar 24 from breaking away from, ensures that relative position between the two remains fixed throughout.

As shown in fig. 1, according to the preferred embodiment of the present invention, the automatic folding structure 1 of the temple further includes a temple 30, the temple 30 is fixedly connected to the movable end 21, and may be fixedly connected to the movable end by bolts as shown in fig. 1, or may be integrally formed, such as injection molding. A veneer 31 may be further provided to protect and cover the folding device 20, and the veneer 31 and the glasses legs 30 may be connected by a snap fastening or an adhesive fastening to keep the external shape of the glasses beautiful and uniform.

As shown in fig. 3, according to a preferred embodiment of the present invention, one side of the fixed end 11 adjacent to the movable end 21 is formed as a first L-shaped curved surface 111, wherein the turning point 114 of the first L-shaped curved surface 111 is an arc-shaped surface and smoothly transits to the planes on both sides of the first L-shaped curved surface 111. As shown in fig. 4A and 4B, the movable end 21 is formed as a first inclined plane 212 adjacent to the fixed end 11, when the movable end 21 rotates around the hinge position between the spring shaft 22 and the fixed end 11, the first inclined plane 212 also rotates around the fixed end 11 along with the movable end 21, the first inclined plane 212 and the first L-shaped curved surface 111 are tangent to a tangent line, the position of the tangent line changes along with the rotation of the movable end 21, when the tangent line is located at the turning point 114 of the first L-shaped curved surface 111 (strictly speaking, the middle part of the arc-shaped surface of the turning point 114), the distance between the third limiting block 213 and the hinge position is longest, correspondingly, the distance between the third limiting block 213 and the first end of the spring shaft 22 is shortest, the compression amount of the spring 23 is largest, and the elastic potential energy of the spring 23 is largest. When the tangent line of the first inclined plane 212 and the first L-shaped curved surface 111 moves from the turning point 114 to both sides, the distance between the third limiting block 213 and the hinge position decreases, the compression amount of the spring 23 gradually decreases, and the elastic potential energy is released.

According to an embodiment of the present invention, as shown in fig. 3 and fig. 6, the first L-shaped curved surface 111 can be divided into an outer region 1110 and an inner region 1111 by using the middle portion of the arc-shaped surface of the turning point 114 as a boundary, and the outer region 1110 and the inner region 1111 both include a short arc surface (i.e. a portion of the arc surface of the turning point 114 of the first L-shaped curved surface 111) and a long plane. When the temple is located at the stable position 1112 of full extension, the first inclined plane 212 is attached to the plane of the outer side area 1110, when the temple is located at the stable position 1113 of full closure, the first inclined plane 212 is attached to the plane of the inner side area 1111, when the temple is located at other positions between the stable position 1113 of full closure and the stable position of full extension 1112 of full closure, the first inclined plane 212 is tangent to the first L-shaped curved surface 111 and the tangent line is located at the turning point 114 of the first L-shaped curved surface 111, since the turning point 114 is an arc-shaped surface and the tangent line is located at the turning point, the tangent state of the movable end 21 and the fixed end 11 is not a stable state, and the elastic force of the spring 23 drives the movable end 21 to move to the stable position. Specifically, in the rotating process of the movable end 21, when the tangent line moves from the middle of the arc-shaped surface of the turning part 114 to the outer side area 1110, the compression amount of the spring 23 is gradually reduced, the compression elastic force of the spring 23 pushes the third limiting block 213 (when there is no limiting sleeve 24, the elastic force of the spring 23 directly pushes the third limiting block 213, and when there is a limiting sleeve 24, the elastic force of the spring 23 indirectly pushes the third limiting block 213 through the limiting sleeve 24), and then the movable end 21 is driven to move to the outer side, that is, the glasses legs are driven by the movable end 21 to move to the outer side. Therefore, in practical use, when the user toggles the temple from the fully closed stable position 1113 to the tangent line located at the outer region 1110, the elastic force of the spring 23 directly drives the temple to automatically open to the fully extended stable position 1112 without further toggling the temple. Similarly, when the tangent line moves from the middle portion of the arc-shaped surface of the turning part 114 to the inner region 1111, the compression amount of the spring 23 gradually decreases, and the compression elastic force of the spring 23 pushes the third stopper 213, so as to drive the movable end 21 to move inward, that is, the temple is driven by the movable end 21 to move inward. Therefore, in practical use, when the user toggles the temple from the fully extended stable position 1112 to the tangent line located in the inner zone 1111, the user does not need to toggle the temple, and the elastic force of the spring 23 directly drives the temple to automatically close to the fully closed stable position 1113. Therefore, the utility model discloses an above structural feature need not to stir the mirror leg completely before using and accomodating and targets in place, has improved the convenience of use, and in addition, the mirror leg is in totally open stable position 1112 or totally closed stable position 1113 all the time under the circumstances of no external force interference, and convenient to use user uses and accomodates, can maximize avoid external force to lead to structural damage.

According to a preferred embodiment of the present invention, the second end of the spring shaft 22 is formed with a limiting groove 222, the outer end of the first L-shaped curved surface 111 is formed with a second L-shaped curved surface 112, the second L-shaped curved surface 112 provides a space for the movable end 21 to continue to rotate outward based on the position where the temple is completely unfolded 1112, so as to increase the opening angle between the left and right temples to adapt to users with different head sizes, the fixed end 11 has a second limiting block 113 engaged with the limiting groove 222, the limiting groove 222 is engaged with the second limiting block 113, when the movable end 21 rotates outward within the range of the second L-shaped curved surface 112 relative to the fixed end 11, the spring 23 is compressed to obtain elastic potential energy, meanwhile, the compression elastic force of the spring 23 pushes the third limiting block 213, the third limiting block 213 provides a reaction force to the spring 23 to drive the movable end 21 to rotate inward, when the temple 30 is worn on the head of the user, the glasses legs have clamping force towards the inner side, the clamping force is moderate in size, the clamping effect is not obvious due to too small clamping force, and discomfort of a user due to too large clamping force is avoided. In order to prevent the movable end 21 from rotating too much to cause structural damage, the rotation range of the movable end 21 in this embodiment is limited by the limiting groove 222 and the second limiting block 113, and when the outward rotation range of the movable end 21 reaches the maximum limit, the limiting groove 222 on the spring shaft 22 is blocked by the second limiting block 113 on the fixed end 11 and cannot rotate outwards, so as to prevent the movable end 21 from rotating too much outwards to damage the parts connected or contacted with it.

According to the utility model discloses a preferred embodiment, can be through adjusting the distance between stop collar 24 and the first end of spring shaft 22, and the length of spring 23, make spring 23 have certain precompression volume, no matter what kind of position is in for stiff end 11 for expansion end 21, spring 23 has certain compression volume all the time, when expansion end 21 is in stable position, according to hooke's law, it provides bigger external force and overcomes spring 23's elasticity to need the user, just can make expansion end 21 rotate, thereby the maloperation that slightly touches the mirror leg when avoiding daily use makes expansion end 21 and mirror leg 30 take place to rotate. And adding a certain amount of pre-compression to the spring 23 also avoids to some extent the failure of the folding device 20 due to fatigue of the spring 23.

According to a preferred embodiment of the present invention, the spring shaft 22 has a plurality of springs arranged in parallel, for example, two springs shown in fig. 1 and 2, and each spring shaft 22 is sleeved with a spring 23 and a stop collar 24, so as to improve the structural stability, and in practical implementation, the springs 23 with the same elastic coefficient are preferably selected, so that the springs 23 provide the same elastic force, and the uneven stress is avoided.

The embodiment of the utility model provides a still provide a pair of intelligent glasses, including controlling two mirror legs 30 that distribute, the both sides of intelligent glasses are all installed as before mirror leg automatic folding structure 1, make mirror leg 30 have can expand completely automatically and automatic advantage and the technological effect that mentions such as close completely.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a mirror leg is automatic to be closed structure, its characterized in that includes:

a folding device, the folding device comprising:

2. The automatic temple folding structure according to claim 1, wherein the fixed end is formed with a first L-shaped curved surface adjacent to the movable end, the movable end is formed with a slanted plane adjacent to the fixed end, the slanted plane and the first L-shaped curved surface are tangent to a tangent line when the movable end rotates around the hinge position of the spring shaft and the fixed end, and the elastic potential energy of the spring increases when the tangent line moves toward the turning point of the first L-shaped curved surface; when the tangent line moves from the turning part of the first L-shaped curved surface to two sides, the elastic potential energy of the spring is reduced.

3. The automatic glasses leg folding structure as claimed in claim 2, wherein a limiting groove is formed at the second end of the spring shaft and a second L-shaped curved surface is formed at the outer end of the first L-shaped curved surface, the second L-shaped curved surface provides a space for the movable end to rotate outward, the fixed end has a second limiting block engaged with the limiting groove, the limiting groove is engaged with the second limiting block, when the movable end rotates outward in the range of the second L-shaped curved surface, the elastic potential energy of the spring is increased and the rotation range is limited by the limiting groove and the second limiting block.

4. The automatic temple folding structure according to claim 1, wherein said folding device further comprises a limiting sleeve, said limiting sleeve is sleeved on said spring shaft, said limiting sleeve has a first end and a second end opposite to said first end, said first end of said limiting sleeve abuts against said second end of said spring; and a third limiting block is arranged in the accommodating space and is abutted against the second end of the limiting sleeve.

5. The automatic glasses leg folding structure as claimed in claim 4, wherein said folding device further comprises a spring pressing block, said spring pressing block is fixedly connected to said movable end and is pressed on said limiting sleeve.

6. The automatic glasses leg folding structure as claimed in claim 5, wherein the position-limiting sleeve is provided with a groove matching with the spring pressing block.

7. The automatic glasses leg folding structure as claimed in any one of claims 1 to 4, further comprising glasses legs, wherein the glasses legs are fixedly connected with the movable end.

8. The automatic temple folding structure according to claim 7, wherein said movable end is integrally formed with said temple.

9. The automatic temple folding structure according to claim 4, wherein said spring shaft has a plurality thereof arranged in parallel, and each of said spring shafts is fitted with said spring and said stopper.

10. A smart eyewear, comprising:

the automatic temple-retracting structure of any one of claims 1 to 9.