Rotary connecting mechanism, spectacle frame and spectacles

Abstract

The utility model discloses a rotary connection mechanism, glasses frame and glasses, wherein the rotary connection mechanism comprises a body and a plurality of driven gears, each driven gear is fixed with the body through a driven rotating shaft, so that the plurality of driven gears form synchronous meshing rotation, and driving rotating shafts for fixing driving gears are respectively arranged at two ends of the body. The two driving gears are in meshing transmission with the driven gear on the outermost side in the plurality of driven gears, and the plurality of driven gears and the driving gears synchronously rotate in opposite directions or in opposite directions. And in the state from the opening state to the storage state, one driving gear is rotated, so that the driven gear rotates synchronously, and the other driving gear also rotates synchronously. When the folding state is changed into the unfolding state, one driving gear is rotated, and the driven gear synchronously enables the other driving gear to rotate synchronously. In this way, the rotating angles of all the rotating shafts can be the same during storage or opening, on one hand, each rotating stroke can be reduced, on the other hand, the rotating efficiency can be improved, and storage and opening are more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of glasses, in particular to a rotating connection mechanism, a glasses frame and glasses. Background Art

[0002] There are more and more types of glasses, which can be used to protect the eyes, such as sunglasses, and can also be used to correct vision, such as myopia glasses. They are used more and more widely. The frame and the temples are usually connected by a hinge, and the hinge connection usually uses a rotating shaft. When in use, it is often rotated, which is prone to mechanical wear and loosening, affecting the use. Therefore, a hinge structure with two rotating shafts is developed, which can disperse the rotation wear of one rotating shaft during the rotation process. However, when the two rotating shafts rotate, they usually rotate at different angles, which is prone to different wear and tear. After a period of time, loosening will still occur. Utility Model Content

[0003] The main technical problem solved by the utility model is to provide a rotating connection mechanism, a frame and glasses, wherein the rotating connection mechanism can avoid the difference in wear caused by the different rotation angles of the two rotating shafts, extend the service life and improve the user experience.

[0004] In order to solve the above technical problems, the utility model provides a rotating connection mechanism. The rotating connection mechanism includes a body and a plurality of driven gears, each driven gear is fixed to the body through a driven rotating shaft, so that the plurality of driven gears form a synchronous meshing rotation, and a driving rotating shaft for fixing the driving gear is respectively provided at both ends of the body, and the two driving gears are meshed and driven with the outermost driven gears among the plurality of driven gears, and the plurality of driven gears rotate synchronously with the driving gear in the relative direction or in the opposite direction.

[0005] Furthermore, the body includes two fixed plates arranged in parallel, and the driven gear is arranged in a space formed by the two fixed plates and is rotationally connected to the two fixed plates via a driven rotating shaft.

[0006] Furthermore, openings are provided at both ends of the body, and a limiting structure is provided on one side of the opening, and the end surface of the limiting structure does not exceed the center of the rotating shaft hole.

[0007] Furthermore, the axes of the driven rotating shaft and the driving rotating shaft are on the same straight line.

[0008] Furthermore, the transmission teeth distribution angle of each driving gear is not less than 60 degrees.

[0009] Furthermore, two opposite inclined surfaces are provided on the side surface of each fixing plate, and the two inclined surface-shaped wedge-shaped structures at least cover the driven gear when projected along the direction of the driven rotating shaft or the driving rotating shaft.

[0010] Furthermore, the vertex of the wedge-shaped structure is located on a perpendicular line to the center connecting line of the driven shaft.

[0011] Furthermore, the two driven gears have the same diameter and / or the two driving gears have the same diameter.

[0012] Furthermore, the driving gear and the driven gear have the same diameter.

[0013] The utility model also provides a glasses frame, which comprises a glasses frame body and glasses feet, wherein a rotating connection mechanism is provided between the glasses frame body and the glasses feet to enable the glasses frame body and the glasses feet to be rotatably connected.

[0014] It includes a body and a plurality of driven gears, each driven gear is fixed to the body through a driven rotating shaft, so that the plurality of driven gears form a synchronous meshing rotation, and a driving rotating shaft for fixing the driving gear is respectively provided at both ends of the body. The two driving gears mesh with the outermost driven gears among the plurality of driven gears for transmission, and the plurality of driven gears rotate synchronously with the driving gear in the relative direction or in the opposite direction.

[0015] Furthermore, the body includes two fixed plates arranged in parallel, and the driven gear is arranged in a space formed by the two fixed plates and is rotationally connected to the two fixed plates via a driven rotating shaft.

[0016] Furthermore, openings are provided at both ends of the body, and a limiting structure is provided on one side of the opening, and the end surface of the limiting structure does not exceed the center of the rotating shaft hole.

[0017] Furthermore, the axes of the driven rotating shaft and the driving rotating shaft are on the same straight line.

[0018] Furthermore, the transmission teeth distribution angle of each driving gear is not less than 60 degrees.

[0019] Furthermore, two opposite inclined surfaces are provided on the side surface of each fixing plate, and the two inclined surface-shaped wedge-shaped structures at least cover the driven gear when projected along the direction of the driven rotating shaft or the driving rotating shaft.

[0020] Furthermore, the vertex of the wedge-shaped structure is located on a perpendicular line to the center connecting line of the driven shaft.

[0021] Furthermore, the two driven gears have the same diameter and / or the two driving gears have the same diameter.

[0022] Furthermore, the driving gear and the driven gear have the same diameter.

[0023] The utility model also provides a pair of glasses, which comprises a glasses frame and glasses lenses arranged on the glasses frame, wherein the glasses frame comprises a glasses frame body and glasses feet, and a rotating connection mechanism is arranged between the glasses frame body and the glasses feet to enable the glasses frame body and the glasses feet to be rotatably connected, and the rotating connection mechanism comprises

[0024] It includes a body and a plurality of driven gears, each driven gear is fixed to the body through a driven rotating shaft, so that the plurality of driven gears form a synchronous meshing rotation, and a driving rotating shaft for fixing the driving gear is respectively provided at both ends of the body. The two driving gears mesh with the outermost driven gears among the plurality of driven gears for transmission, and the plurality of driven gears rotate synchronously with the driving gear in the relative direction or in the opposite direction.

[0025] Furthermore, the body includes two fixed plates arranged in parallel, and the driven gear is arranged in a space formed by the two fixed plates and is rotationally connected to the two fixed plates via a driven rotating shaft.

[0026] Furthermore, openings are provided at both ends of the body, and a limiting structure is provided on one side of the opening, and the end surface of the limiting structure does not exceed the center of the rotating shaft hole.

[0027] Furthermore, the axes of the driven rotating shaft and the driving rotating shaft are on the same straight line.

[0028] Furthermore, the transmission teeth distribution angle of each driving gear is not less than 60 degrees.

[0029] Furthermore, two opposite inclined surfaces are provided on the side surface of each fixing plate, and the two inclined surface-shaped wedge-shaped structures at least cover the driven gear when projected along the direction of the driven rotating shaft or the driving rotating shaft.

[0030] Furthermore, the vertex of the wedge-shaped structure is located on a perpendicular line to the center connecting line of the driven shaft.

[0031] Furthermore, the two driven gears have the same diameter and / or the two driving gears have the same diameter.

[0032] Furthermore, the driving gear and the driven gear have the same diameter.

[0033] The utility model discloses a rotating connection mechanism, a spectacle frame and glasses, wherein the rotating connection mechanism comprises a body and a plurality of driven gears, each driven gear is fixed to the body through a driven rotating shaft, so that the plurality of driven gears form synchronous meshing and rotation, and driving rotating shafts for fixing driving gears are respectively provided at both ends of the body, and two driving gears mesh and transmit with the outermost driven gears among the plurality of driven gears, and the plurality of driven gears rotate synchronously with the driving gears in the opposite direction or in the opposite direction. When the glasses are opened to the storage state, by rotating one driving gear, the plurality of driven gears rotate synchronously, and the other driving gear also rotates synchronously. When the glasses are stored to the opening state, by rotating one driving gear, the other driving gear rotates synchronously by the rotating connection mechanism. In this way, the rotation angle of each rotating shaft can be the same when the glasses are stored or opened, which can reduce the stroke of each rotation on the one hand, and improve the rotation efficiency on the other hand, so that the storage and opening can be more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the description only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0035] Figure 1 It is a schematic structural diagram of an embodiment of a rotating connection mechanism.

[0036] Figure 2 for Figure 1 A schematic diagram of the enlarged structure of part A.

[0037] Figure 3 It is a schematic structural diagram of a fixed plate embodiment.

[0038] Figure 4 It is a schematic diagram of the structure of a driving gear embodiment.

[0039] Figure 5 This is a schematic diagram of the structure after use.

[0040] The realization of the purpose, functional features and advantages of the present invention will be further described in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0041] The claims of the utility model are further described in detail below in conjunction with specific embodiments and drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments proposed by ordinary technicians in this field before making creative work also fall within the scope of protection of the utility model.

[0042] It should be understood that in the description of the embodiments of the present invention, all directional indication terms, such as "up", "down", "left", "right", "front", "back", etc., indicate the orientation or position relationship based on the orientation, position relationship shown in the drawings or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of simplifying the description of the utility model, and does not expressly or imply that the device, element or component referred to must have a specific orientation and a specific orientation structure, and should not be understood as a limitation on the present invention. It is only used to explain the relative position relationship, movement, etc. between the components shown in the drawings. When the specific posture changes, the directional indication may also change accordingly.

[0043] In addition, ordinal numbers such as "first" and "second" in the present invention are only used for the purpose of distinction, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. The features defined as "first" and "second" can explicitly or implicitly indicate at least one of the technical features. In the description of the present invention, "multiple" means at least two, that is, two or more, unless otherwise clearly defined; "at least one" means one or one and more.

[0044] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, the positional relationship between components can be relatively fixed, or there can be a physically fixed connection between components. The connection can be detachable or integrated. It can be a mechanical connection or an electrical signal connection. It can be directly connected or indirectly connected through an intermediate medium or component. It can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined in the specification, other interpretations may not achieve the corresponding functions or effects. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to specific circumstances.

[0045] The controller and control circuit involved in the utility model are conventional control technologies or units of the technicians in this field. For example, the control circuit of the controller can be realized by ordinary technicians in this field using existing technologies, such as simple programming. If the software or program involved in the control result is not described in detail, it belongs to the use of existing technologies or conventional technologies of ordinary technicians in this field. The power supply also uses the existing technologies in this field, and the main technical point of the utility model is to improve the mechanical device, so the utility model will no longer describe the specific circuit control relationship and circuit connection in detail.

[0046] The disclosure of the present invention provides many different embodiments or examples for realizing different structures of the present invention. In order to simplify the disclosure of the present invention, the components and settings of specific examples are described in the present invention. Of course, they are merely examples, and the purpose is not to limit the present invention. In addition, the present invention may repeat reference numbers and / or reference letters in different examples, and such repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides various specific examples of processes and materials, but those of ordinary skill in the art may be aware of the application of other processes and / or the use of other materials.

[0047] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0048] like Figure 1-Figure 5 As shown, the utility model provides an embodiment of a rotating connection mechanism.

[0049] The rotating connection mechanism 3 includes a body and a plurality of driven gears, the driven gears are fixed to the body through a driven rotating shaft, so that the plurality of driven gears form synchronous meshing rotation, a rotating shaft hole is respectively provided at both ends of the body, each rotating shaft hole is provided with a driving rotating shaft for fixing the driving gear, the driven gears at both ends of the plurality of driven gears are meshed and transmitted with the driving gear, when the plurality of driven gears rotate synchronously, the driving gears rotate synchronously in the relative direction or in the opposite direction.

[0050] Specifically, the body includes two parallel fixed plates, namely, an upper fixed plate 31 and a lower fixed plate (not shown in the drawings). For ease of description, two driven gears are used as an example. The two driven gears include a first driven gear 32 and a second driven gear 33. The first driven gear 32 and the second driven gear 33 are arranged in a space formed by the upper fixed plate 31 and the lower fixed plate, and are rotatably connected to the upper fixed plate 31 and the lower fixed plate through a first driven rotating shaft (not shown in the drawings) and a second driven rotating shaft (not shown in the drawings). The first driven gear 32 and the second driven gear 33 are meshed and driven, and the two driven gears are of the same size, so that only motion can be transmitted during rotation without changing the output torque, thereby achieving synchronous rotation. The upper fixing plate 31 and the lower fixing plate are also provided with a first driving shaft 35 and a second driving shaft 35 at both ends, each of which is fixedly matched with a driving gear, that is, the first driving shaft 34 is matched with the first driving gear 11, and the second driving shaft 35 is matched with the second driving gear 21, and the first driving gear 11 and the second driving gear 21 are respectively meshed and driven with the first driving shaft 34 and the second driving shaft 35. The first driven shaft and the second driven shaft are installed in the first driven shaft hole 312 and the second driven shaft hole 313, so that the two driven gears are in meshing state.

[0051] The body is provided with openings at both ends, and a limiting structure is provided on one side of the opening, namely, a first limiting structure 316 and a second limiting structure 317. The end face of each limiting structure does not exceed the axis of the two active shafts, namely, the two limiting structures do not exceed the axis of the first active shaft 34 and the second active shaft 35, respectively, to ensure that when limiting, the two active gears fixed with the temples are in a straight state with the body, and will not rotate excessively, increase the rotation angle, and cause the temples to loosen when worn. As needed, the axis of the first driven shaft, the second driven shaft, the first active shaft, and the second active shaft are on the same straight line.

[0052] The structures of the first driving gear 11 and the second driving gear 21 are preferably the same, and the transmission teeth 111 on each driving gear can be distributed in a partial distribution, and the distribution angle of the transmission teeth 111 on each driving gear is not less than 60 degrees. Each driving gear is provided with a hole that cooperates with the driving shaft, that is, the first driving gear is provided with a hole 13, and the second driving gear is provided with another hole, and the two holes are respectively matched with the two driving shafts to realize fixed connection with the rotating connection mechanism body.

[0053] Each fixing plate, i.e., the upper fixing plate 31 and the lower fixing plate, is provided with two opposite inclined surfaces on its side. The two inclined wedge-shaped structures 311 at least cover the driven gear when projected along the direction of the two driven shafts or the driving shaft. This can prevent foreign matter from affecting the rotation during rotation. The vertex of the wedge-shaped structure 311 is located on the perpendicular line D of the center connecting line C of the two driven shafts.

[0054] In this embodiment, the diameters of the two driven gears are the same and / or the diameters of the two driving gears are the same, that is, the diameters of the two driven gears are the same as the diameters of the two driving gears, or only the diameters of the two driven gears are the same or the diameters of the two driving gears are the same. It is preferred that all gears have the same radius, so that when rotating, the two driving gears rotate synchronously, and the torque and angle are the same, avoiding uneven force and causing local shaft wear, which affects the service life.

[0055] When changing from the open state to the stored state, by rotating one driving gear, a plurality of driven gears are rotated synchronously, and another driving gear is also rotated synchronously. When changing from the stored state to the open state, by rotating one driving gear, another driving gear is rotated synchronously by the rotating connection mechanism. In this way, each rotating shaft can rotate at the same angle when storing or opening, which can reduce the stroke of each rotation on the one hand, and improve the rotation efficiency on the other hand, making storage and opening more convenient.

[0056] The utility model also provides a mirror frame embodiment.

[0057] The glasses frame comprises a glasses frame body 1 and glasses feet 2, wherein a rotation connection mechanism 3 is provided between the glasses frame body 1 and the glasses feet 2 to rotationally connect the glasses frame body 1 and the glasses feet 2, wherein the rotation connection mechanism 3 comprises a body and a plurality of driven gears, wherein the driven gears are fixed to the body via a driven rotating shaft, so that the plurality of driven gears form synchronous meshing rotation, and rotating shaft holes are respectively provided at both ends of the body, and each rotating shaft hole is provided with a driving rotating shaft for fixing the driving gear, and the driven gears at both ends of the plurality of driven gears mesh with the driving gear for transmission, and when the plurality of driven gears rotate synchronously, the driving gears rotate synchronously in relative directions or in opposite directions.

[0058] Specifically, the body includes two parallel fixed plates, namely, an upper fixed plate (not shown in the drawings) and a lower fixed plate 31. For ease of description, two driven gears are used as an example for explanation. The plurality of driven gears include a first driven gear 32 and a second driven gear 33. The first driven gear 32 and the second driven gear 33 are arranged in a space formed by the upper fixed plate 30 and the lower fixed plate 31, and are rotatably connected to the upper fixed plate 30 and the lower fixed plate 31 through a first driven rotating shaft and a second driven rotating shaft, respectively. The first driven gear 32 and the second driven gear 33 are meshed for transmission, and the two driven gears are of the same size, so that only motion can be transmitted during rotation without changing the output torque. The upper fixing plate 30 and the lower fixing plate 31 are also provided with a first driving shaft 35 and a second driving shaft 35 at both ends, each of which is fixedly matched with a driving gear, that is, the first driving shaft 34 is matched with the first driving gear 11, and the second driving shaft 35 is matched with the second driving gear 21, and the first driving gear 11 and the second driving gear 21 are respectively meshed and driven with the first driving shaft 34 and the second driving shaft 35. The first driven shaft and the second driven shaft are installed in the first driven shaft hole 312 and the second driven shaft hole 313, so that the two driven gears are in meshing state. The first driving gear 11 is connected and fixed to the frame body 1, and the second driving gear 21 is connected and fixed to the eyeglass foot 2. The first driving gear 11 and the second driving gear 21 extend out of the frame body 1 and the eyeglass foot 2 respectively, so that the first driving gear 11 and the second driving gear 21 are located in the gap between the two fixed plates. The two driving gears are respectively provided with a connection portion fixed to the eyeglass foot 2 and the frame body 1 (not shown in the drawings). The connection portion can increase the rotational torque of the driving gear to achieve better storage or opening, and at the same time increase the strength of the connection position to avoid deformation of the eyeglass foot when the rotational torque is large. The connection end 20 of the eyeglass foot 2 is fixed to the second driving gear, and the connection end 10 of the frame body 1 is fixed to the first driving gear 11.

[0059] The body is provided with openings at both ends, and a limiting structure is provided on one side of the opening, namely, a first limiting structure 316 and a second limiting structure 317. The end face of each limiting structure does not exceed the axis of the two active shafts, namely, the two limiting structures do not exceed the axis of the first active shaft 34 and the second active shaft 35, respectively, to ensure that when limiting, the two active gears fixed with the temples are in a straight state with the body, and will not rotate excessively, increase the rotation angle, and cause the temples to loosen when worn. As needed, the axis of the first driven shaft, the second driven shaft, the first active shaft, and the second active shaft are on the same straight line.

[0060] The first driving gear and the second driving gear preferably have the same structure, the transmission teeth on each driving gear may be partially distributed, and the transmission teeth distribution angle on each driving gear is not less than 60 degrees.

[0061] Each fixing plate, i.e., the upper fixing plate and the lower fixing plate, is provided with two opposite inclined surfaces on its side. The two inclined wedge-shaped structures 311 at least cover the driven gear when projected along the direction of the two driven shafts or the driving shaft. This can prevent foreign matter from affecting the rotation during rotation. The vertex of the wedge-shaped structure 311 is located on the perpendicular line D of the center connecting line C of the two driven shafts.

[0062] In this embodiment, the diameters of the two driven gears are the same and / or the diameters of the two driving gears are the same, that is, the diameters of the two driven gears are the same as the diameters of the two driving gears, or only the diameters of the two driven gears are the same or the diameters of the two driving gears are the same. It is preferred that all gears have the same radius, so that when rotating, the two driving gears rotate synchronously, and the torque and angle are the same, avoiding uneven force and causing local shaft wear, which affects the service life.

[0063] When changing from the open state to the stored state, by rotating one driving gear, a plurality of driven gears are rotated synchronously, and another driving gear is also rotated synchronously. When changing from the stored state to the open state, a force in the direction of F1 or F2 is applied to the frame body 1 or the eyeglass foot 2 respectively, and by rotating one driving gear, the other driving gear is rotated synchronously by the rotating connection mechanism. In this way, each rotating shaft can rotate at the same angle when storing or opening, which can reduce the stroke of each rotation on the one hand, and improve the rotation efficiency on the other hand, making storage and opening more convenient.

[0064] The utility model also provides a glasses embodiment.

[0065] The glasses include a glasses frame and glasses lenses arranged on the glasses frame. The glasses frame includes a glasses frame body 1 and glasses feet 2. A rotating connection mechanism 3 is provided between the glasses frame body 1 and the glasses feet 2 to enable the glasses frame body 1 and the glasses feet 2 to be rotatably connected. The rotating connection mechanism 3 includes a body and a plurality of driven gears. The driven gears are fixed to the body through a driven rotating shaft so that the plurality of driven gears form a synchronous meshing rotation. Rotating shaft holes are respectively provided at both ends of the body. Each rotating shaft hole is provided with a driving rotating shaft for fixing the driving gear. The driven gears at both ends of the plurality of driven gears are meshed with the driving gear for transmission. When the plurality of driven gears rotate synchronously, the driving gears rotate synchronously in relative directions or in opposite directions.

[0066] Specifically, the body includes two parallel fixed plates, namely, an upper fixed plate (not shown in the drawings) and a lower fixed plate 31. For ease of description, two driven gears are used as an example for explanation. The plurality of driven gears include a first driven gear 32 and a second driven gear 33. The first driven gear 32 and the second driven gear 33 are arranged in a space formed by the upper fixed plate 30 and the lower fixed plate 31, and are rotatably connected to the upper fixed plate 30 and the lower fixed plate 31 through a first driven rotating shaft and a second driven rotating shaft, respectively. The first driven gear 32 and the second driven gear 33 are meshed for transmission, and the two driven gears are of the same size, so that only motion can be transmitted during rotation without changing the output torque. The upper fixing plate 30 and the lower fixing plate 31 are also provided with a first driving shaft 35 and a second driving shaft 35 at both ends, each of which is fixedly matched with a driving gear, that is, the first driving shaft 34 is matched with the first driving gear 11, and the second driving shaft 35 is matched with the second driving gear 21, and the first driving gear 11 and the second driving gear 21 are respectively meshed and driven with the first driving shaft 34 and the second driving shaft 35. The first driven shaft and the second driven shaft are installed in the first driven shaft hole 312 and the second driven shaft hole 313, so that the two driven gears are in meshing state. The first driving gear 11 is connected and fixed to the frame body 1, and the second driving gear 21 is connected and fixed to the eyeglass foot 2. The first driving gear 11 and the second driving gear 21 extend out of the frame body 1 and the eyeglass foot 2 respectively, so that the first driving gear 11 and the second driving gear 21 are located in the gap between the two fixed plates. The two driving gears are respectively provided with a connection portion fixed to the eyeglass foot 2 and the frame body 1 (not shown in the drawings). The connection portion can increase the rotational torque of the driving gear to achieve better storage or opening, and at the same time increase the strength of the connection position to avoid deformation of the eyeglass foot when the rotational torque is large. The connection end 20 of the eyeglass foot 2 is fixed to the second driving gear, and the connection end 10 of the frame body 1 is fixed to the first driving gear 11.

[0067] The body is provided with openings at both ends, and a limiting structure is provided on one side of the opening, namely, a first limiting structure 316 and a second limiting structure 317. The end face of each limiting structure does not exceed the axis of the two active shafts, namely, the two limiting structures do not exceed the axis of the first active shaft 34 and the second active shaft 35, respectively, to ensure that when limiting, the two active gears fixed with the temples are in a straight state with the body, and will not rotate excessively, increase the rotation angle, and cause the temples to loosen when worn. As needed, the axis of the first driven shaft, the second driven shaft, the first active shaft, and the second active shaft are on the same straight line.

[0068] The first driving gear and the second driving gear preferably have the same structure, the transmission teeth on each driving gear may be partially distributed, and the transmission teeth distribution angle on each driving gear is not less than 60 degrees.

[0069] Each fixing plate, i.e., the upper fixing plate and the lower fixing plate, is provided with two opposite inclined surfaces on its side. The two inclined wedge-shaped structures 311 at least cover the driven gear when projected along the direction of the two driven shafts or the driving shaft. This can prevent foreign matter from affecting the rotation during rotation. The vertex of the wedge-shaped structure 311 is located on the perpendicular line D of the center connecting line C of the two driven shafts.

[0070] In this embodiment, the diameters of the two driven gears are the same and / or the diameters of the two driving gears are the same, that is, the diameters of the two driven gears are the same as the diameters of the two driving gears, or only the diameters of the two driven gears are the same or the diameters of the two driving gears are the same. It is preferred that all gears have the same radius, so that when rotating, the two driving gears rotate synchronously, and the torque and angle are the same, avoiding uneven force and causing local shaft wear, which affects the service life.

[0071] When changing from the open state to the stored state, by rotating one driving gear, a plurality of driven gears are rotated synchronously, and another driving gear is also rotated synchronously. When changing from the stored state to the open state, a force in the direction of F1 or F2 is applied to the frame body 1 or the eyeglass foot 2 respectively, and by rotating one driving gear, the other driving gear is rotated synchronously by the rotating connection mechanism. In this way, each rotating shaft can rotate at the same angle when storing or opening, which can reduce the stroke of each rotation on the one hand, and improve the rotation efficiency on the other hand, making storage and opening more convenient.

[0072] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents, and these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A rotary connection mechanism, characterized in that: It includes a body and a plurality of driven gears, each driven gear is fixed to the body through a driven rotating shaft, so that the plurality of driven gears form a synchronous meshing rotation, and a driving rotating shaft for fixing the driving gear is respectively provided at both ends of the body. The two driving gears mesh with the outermost driven gears among the plurality of driven gears for transmission, and the plurality of driven gears rotate synchronously with the driving gear in the relative direction or in the opposite direction.

2. The rotary connection mechanism according to claim 1, characterized in that: The body comprises two fixed plates arranged in parallel, and the driven gear is arranged in a space formed by the two fixed plates and is rotationally connected to the two fixed plates via a driven rotating shaft.

3. The rotary connection mechanism according to claim 1, characterized in that: Openings are arranged at both ends of the body, and a limiting structure is arranged on one side of the opening, and the end surface of the limiting structure does not exceed the center of the rotating shaft hole.

4. The rotary connection mechanism according to claim 1, characterized in that: The axes of the driven rotating shaft and the driving rotating shaft are on the same straight line.

5. The rotary connection mechanism according to claim 1, characterized in that: The transmission tooth distribution angle of each driving gear is not less than 60 degrees.

6. The rotary connection mechanism according to claim 2, characterized in that: Two opposite inclined surfaces are arranged on the side surface of each fixing plate. The two inclined surface wedge-shaped structures at least cover the driven gear when projected along the driven rotating shaft or the driving rotating shaft.

7. The rotary connection mechanism according to claim 6, characterized in that: The apex of the wedge-shaped structure is located on a perpendicular line to the center connecting line of the driven shaft.

8. The rotary connection mechanism according to claim 1, characterized in that: The two driven gears have the same diameter and / or the two driving gears have the same diameter.

9. The rotary connection mechanism according to claim 8, characterized in that: The driving gear and the driven gear have the same diameter.

10. A glasses frame, comprising a glasses frame body and glasses feet, wherein a rotating connection mechanism is provided between the glasses frame body and the glasses feet to enable the glasses frame body and the glasses feet to be rotatably connected, characterized in that: The rotating connection mechanism has the rotating connection mechanism described in any one of claims 1-9.

11. A pair of glasses, comprising a glasses frame and glasses lenses arranged on the glasses frame, wherein the glasses frame comprises a glasses frame body and glasses feet, and a rotating connection mechanism is arranged between the glasses frame body and the glasses feet to enable the glasses frame body and the glasses feet to be rotatably connected, characterized in that: The rotation connection mechanism comprises the mirror frame according to claim 10 .

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