Rotating shaft unit, rotating shaft and glasses

Abstract

A fixing seat on a first connecting frame of the rotating shaft unit is provided with a first contact edge and a second contact edge which are adjacent to each other, and the two contact edges can alternately abut against a supporting part of a second connecting frame in the rotating process, so that a connecting shaft generates axial movement, and the rotating shaft is connected with the rotating shaft. And further, the elastic element is compressed or released. The rotary motion is converted into the change of the axial elastic force, so that a stable rotating process with a damping effect is realized, and the problem that the damping effect of a traditional rotating shaft is not stable is effectively solved. The pre-compression degree of the elastic element can be changed by adjusting the position of the limiting piece relative to the supporting part, so that the damping and the locking force can be flexibly adjusted according to different use requirements, the technical problem that the damping of a traditional rotating shaft cannot be adjusted according to the use requirements is solved, the service life of a product is prolonged, and the user experience is improved. And the product has higher practicability and adaptability.

Description

TECHNICAL FIELD

[0001] The utility model relates to a pivot connecting structure field field especially relates to a pivot unit, pivot and glasses. BACKGROUND

[0002] The existing pivot is mostly used for connecting two components needing relative rotation, such as the frame and the leg of glasses, the shell and the screen of electronic equipment, etc. The traditional pivot usually realizes damping effect by friction or realizes position positioning of specific angle by using buckle structure. However, this kind of pivot structure generally has problems such as unstable damping effect, short service life, unable to adjust damping size according to use demand, etc., and the resistance is often uneven during rotation, which affects user experience.

[0003] In addition, the pivot in the prior art mostly adopts simple mechanical structure and lacks effective adjustment mechanism. Once the pivot is assembled, its damping size and locking force are fixed, and cannot be flexibly adjusted according to different use scenarios and user preferences. This leads to the problem that in actual application, the pivot is either too tight to affect operation experience or too loose to stably maintain the position, especially after long-term use, these problems will be more obvious due to wear of parts. UTILITY MODEL CONTENT

[0004] In order to overcome the defects of the prior art, the utility model provides a pivot unit, a pivot and glasses with simple structure, which can provide stable damping effect and has damping adjustment function.

[0005] The utility model solves the technical problems by adopting the following technical scheme:

[0006] A pivot unit, comprising a first connecting frame, a second connecting frame and a connecting shaft, the first connecting frame comprising a fixed seat, one end of the connecting shaft being movably connected with the fixed seat; the second connecting frame being provided with a support portion, the support portion having a through hole for the other end of the connecting shaft to pass through, the other end of the connecting shaft passing through the through hole and being fixed by a limiting piece, an elastic element being arranged on the connecting shaft between the limiting piece and the support portion; the fixed seat having adjacent first and second contact edges, which alternately abut against the support portion during rotation, so that the connecting shaft moves axially to compress or release the elastic element, realizing damping rotation and position locking of the first and second connecting frames; the position of the limiting piece relative to the support portion being adjustable to adjust the pre-compression degree of the elastic element.

[0007] Further, the first contact edge and the second contact edge are arranged in an arc shape.

[0008] Further, the first connecting frame is provided with a stop surface on a side away from the second contact edge, and the second connecting frame is provided with a stop plate arranged perpendicularly to the support part.

[0009] Further, the fixing seat is provided with a bottom surface arranged perpendicularly to the stop surface, and the connecting shaft is provided with a stop block on a side close to the stop surface.

[0010] Further, the first contact edge and the second contact edge are arranged in an arc shape.

[0011] Further, the first connecting frame is provided with a first connecting end, and the second connecting frame is provided with a second connecting end.

[0012] Further, the limiting part is a nut, the connecting shaft is provided with an external thread on another end, the nut is threadedly connected with the external thread, and the pre-compression degree of the elastic element is adjusted by adjusting the rotating position of the nut on the connecting shaft.

[0013] Further, the elastic element is a spring.

[0014] A rotating shaft, comprising two rotating shaft units arranged side by side as described above.

[0015] An eyeglass, comprising the rotating shaft unit or the rotating shaft as described above.

[0016] The utility model discloses the beneficial effect is:

[0017] The fixed seat on the first connecting frame of the rotating shaft unit has adjacent first and second contact edges, and the two contact edges can alternately abut against the support portion of the second connecting frame in the rotating process, so that the connecting shaft produces axial movement, and then the elastic element is compressed or released. By converting the rotary motion into the change of the axial elastic force, the rotating process with stable and damping effects is realized, and the problem of unstable damping effect of the traditional rotating shaft is effectively solved. By adjusting the position of the limiting piece relative to the support portion, the pre-compression degree of the elastic element can be changed, so that the damping size and locking force can be flexibly adjusted according to different use requirements, the technical problem that the damping size of the traditional rotating shaft cannot be adjusted according to the use requirement is solved, the product service life is prolonged, the user experience is improved, the product is more practical and adaptable. BRIEF DESCRIPTION OF DRAWINGS

[0018] The utility model is further illustrated below in combination with the drawings and examples.

[0019] Figure 1 It is a three-dimensional structure schematic view of a rotating shaft of the utility model -1.

[0020] Figure 2 It is a three-dimensional structure schematic view of a rotating shaft of the utility model -2.

[0021] Figure 3 It is a cross section structure schematic view of a rotating shaft unit of the utility model.

[0022] Among them,

[0023] 100, first connecting frame;110, fixed seat;111, first contact edge;112, second contact edge;113, stop face;114, bottom face;120, first connecting end;

[0024] 200, second connecting frame;210, support portion;211, through hole;212, stop plate;220, second connecting end;

[0025] 300, connecting shaft;310, limiting piece;320, elastic element;330, stop block. DETAILED DESCRIPTION

[0026] The concept, specific structure and generated technical effects of the present application will be clearly and completely described in combination with the embodiments and drawings, so as to fully understand the purposes, features and effects of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments of the present application, other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application. In addition, all the connection / connection relationships involved in the patent do not mean that the components are directly connected, but that the better connection structure can be composed by adding or reducing the connection auxiliary parts according to the specific implementation situation. The various technical features in the present application can be interactively combined without mutual contradiction and conflict.

[0027] Referring to Figure 1 , Figure 2 A rotating shaft, comprising two rotating shaft units. One rotating shaft unit comprises a first connecting frame 100, a second connecting frame 200 and a connecting shaft 300. The first connecting frame 100 comprises a fixed seat 110, and one end of the connecting shaft 300 is movably connected with the fixed seat 110. The second connecting frame 200 is provided with a supporting part 210, the supporting part 210 has a through hole 211 for the other end of the connecting shaft 300 to pass through, the other end of the connecting shaft 300 passes through the through hole 211 and is fixed by a limiting piece 310, and an elastic element 320 is arranged on the connecting shaft 300 between the limiting piece 310 and the supporting part 210. The fixed seat 110 has adjacent first and second contact edges 111 and 112, which alternately abut against the supporting part 210 during rotation, so that the connecting shaft 300 moves axially to compress or release the elastic element 320, realizing the damping rotation and position locking of the first and second connecting frames 100 and 200. The position of the limiting piece 310 relative to the supporting part 210 is adjustable to adjust the pre-compression degree of the elastic element 320.

[0028] Referring to Figure 1 , 3The working principle of the present rotation unit is to achieve the damping rotation and locking function through the alternate abutment of the adjacent first contact edge 111 and the second contact edge 112 on the fixed seat 110 and the support part 210. When the first connecting frame 100 rotates relative to the second connecting frame 200, the first contact edge 111 of the fixed seat 110 first abuts against the support part 210, and as the rotation continues, the first contact edge 111 gradually moves away from the support part 210, and the second contact edge 112 begins to abut against the support part 210. When they alternately contact the support part 210, they will push the connecting shaft 300 to move axially, and this movement will cause the connecting shaft 300 to compress or release the elastic element 320 thereon. For example, in the application of glasses, when the user adjusts the angle of the glasses legs, the contact edges on the fixed seat 110 will interact with the support part 210, causing the connecting shaft 300 to move axially and compress the elastic element 320, generating a certain damping torque, allowing the adjustment of the glasses legs to be more stable, and when rotated to a certain angle, the elastic element 320 can lock the glasses legs in a certain position. At the same time, by adjusting the position of the limiting part 310 relative to the support part 210, the pre-compression degree of the elastic element 320 can be changed, thereby adjusting the damping size and locking force. For example, if the user wants the glasses legs to rotate more tightly, the position of the limiting part 310 can be adjusted to increase the pre-compression degree of the elastic element 320, so that more force is required when rotating; conversely, if you want to rotate more easily, you can reduce the pre-compression degree. This adjustment mechanism allows the same rotation shaft to adapt to the usage habits and needs of different users. Alternatively, according to the specific needs and usage habits of users, the position of the limiting part 310 can be adjusted during production, i.e., customized for the needs of customers. For example, glasses made for the elderly or users with less strength can be set to a lower pre-compression degree, making it easier to rotate the legs; while glasses designed for outdoor activities or athletes can be set to a higher pre-compression degree to ensure that the legs remain stable during intense exercise.

[0029] Further, with reference to Figure 3 , the connection between the first contact edge 111 and the second contact edge 112 is an arc-shaped structure. By adopting an arc-shaped connection structure, the first contact edge 111 and the second contact edge 112 are no longer connected by a straight or sharp angle, but form a smooth curve, ensuring that the support part 210 can smoothly transition from the first contact edge 111 to the second contact edge 112 during rotation, avoiding sudden changes in resistance or stalling phenomena.

[0030] Further, the limiting piece 310 is a nut, the other end of the connecting shaft 300 is provided with an external thread, the nut is threadedly matched with the external thread, and the pre-compression degree of the elastic element 320 is adjusted by adjusting the rotating position of the nut on the connecting shaft 300. By rotating the nut, the axial position of the nut on the connecting shaft 300 can be changed, so that the compression state of the elastic element 320 is adjusted. When the nut is screwed in the direction of the support part 210, the elastic element 320 is further compressed, the pre-compression degree of the elastic element 320 is increased, more force is required when the rotating shaft rotates, and the damping effect and the locking effect are stronger; on the contrary, if the nut is screwed out in the direction away from the support part 210, the pre-compression degree of the elastic element 320 is reduced, the rotating shaft is easier to rotate, and the damping effect is weakened. The advantage of this adjustment mechanism lies in its simplicity and accuracy, fine adjustment can be made without special tools, and the adjustment range is continuously controllable, which can meet the fine needs of different use scenarios and personal preferences. Among them, the fixing and adjusting scheme of the limiting piece 310 and the connecting shaft 300 provided in the embodiment can be implemented in various alternative schemes in addition to the thread matching of the nut and the external thread. For example, the limiting piece 310 can be designed as a buckle structure with multiple preset clamping grooves, and a protrusion or a clamping position is correspondingly provided on the connecting shaft 300, so that the pre-compression degree of the elastic element 320 is adjusted in steps by buckling the buckle into different clamping groove positions; or the limiting piece 310 can be a wedge-shaped block, the position of which is adjusted by changing the depth of the block inserted into the reserved hole on the side of the connecting shaft 300; or a structure of ratchet and pawl is adopted, the connecting shaft 300 is provided with fine annular teeth, and the limiting piece 310 is provided with elastic pawls, which can be adjusted in steps in one direction and automatically locked.

[0031] Further, the elastic element can use an elastic pad made of rubber or silicone material, which has good elasticity and durability and can provide smoother damping effect; or a cylindrical buffer block made of polyurethane or other high molecular elastomer, the elastic properties of which can be accurately controlled by material formula; or a wave spring, which has a flat design and is particularly advantageous in space-limited cases. Another option is to use a disc spring or a belleville spring, which can provide greater elastic force in the same space, and the elastic properties can be adjusted by stacking. Preferably, the spring.

[0032] In some embodiments, when the first contact edge 111 abuts against the support part 210, a first preset angle is formed between the first connecting frame 100 and the second connecting frame 200; when the second contact edge 112 abuts against the support part 210, a right angle is formed between the first connecting frame 100 and the second connecting frame 200; wherein the included angle between the first contact edge 111 and the second contact edge 112 is an obtuse angle, and the obtuse angle is the same as the first preset angle.

[0033] Specifically, when the first contact edge 111 of the fixed seat 110 abuts against the support part 210, a first preset angle is formed between the first connecting frame 100 and the second connecting frame 200, which corresponds to the unfolded state of the rotating shaft; and when the second contact edge 112 of the fixed seat 110 abuts against the support part 210, a right angle is formed between the first connecting frame 100 and the second connecting frame 200, which corresponds to the storage state of the rotating shaft. When the rotating shaft rotates from the storage state (the right angle position) to the unfolded state, as the second contact edge 112 moves away from the support part 210, the first contact edge 111 gradually approaches and finally abuts against the support part 210, at this time, the rotating shaft is just rotated to the first preset angle, and is stably locked at this position due to the action of the elastic element 320. Thus, the rotating shaft can be automatically positioned and locked at two specific positions, and stable and reliable rotation control is provided.

[0034] The obtuse angle is arranged to enable the rotating shaft to withstand further external force in the unfolded state, and to be further unfolded to 180 degrees, i.e., the first connecting frame 100 and the second connecting frame 200 are in a straight line. In use, it is ensured that the rotating shaft can adapt and smoothly rotate to the fully unfolded position when subjected to additional pressure, and the rotating shaft structure will not be damaged due to rigidity limitation. After the external force is removed, due to the action of the elastic element 320, the rotating shaft returns to the first preset angle position formed by the abutment of the first contact edge 111 and the support part 210, realizing reliable automatic positioning function, while the flexibility and durability of the rotating shaft structure are maintained.

[0035] In some embodiments, with reference to Figures 1-3 The stable locking of the rotating shaft in the fully unfolded position is realized by the cooperation of the stop surface 113 on the first connecting frame 100 and the stop plate 212 on the second connecting frame 200. Specifically, the stop surface 113 is arranged on the first connecting frame 100 on the side away from the second contact edge 112, and the stop plate 212 is arranged on the second connecting frame 200 perpendicular to the support part 210. When the rotating shaft is rotated to the position where the first connecting frame 100 and the second connecting frame 200 are in a straight line (i.e., fully unfolded to 180 degrees), the stop surface 113 abuts against the stop plate 212, forming a physical barrier, thereby limiting the further relative rotation between the two connecting frames. In actual application, when the rotating shaft is further unfolded by external force from the normal unfolded state (the first preset angle), as the rotation angle increases, the stop surface 113 on the first connecting frame 100 will be accurately aligned with and abut against the stop plate 212 on the second connecting frame 200 when reaching 180 degrees, at this time, the rotating shaft is firmly locked in the fully unfolded position and will not continue to rotate excessively in the opposite direction.

[0036] In some embodiments, with reference to Figure 3To further improve the safety protection mechanism of the rotating shaft, additional stop structures are added on the fixed seat 110 and the connecting shaft 300 to achieve double protection against reverse over-rotation. Specifically, the fixed seat 110 is designed with a bottom surface 114, which is perpendicular to the aforementioned stop surface 113, forming a compact protection area. Meanwhile, the connecting shaft 300 is provided with a stop block 330 on the side close to the stop surface 113, which forms a cooperative relationship with the bottom surface 114. In use, when the first connecting frame 100 and the second connecting frame 200 exceed the same straight line position (i.e., more than 180 degrees) and continue to rotate in the reverse direction to reach the second preset angle, the stop block 330 will abut against the bottom surface 114 of the fixed seat 110, thereby forming a second protection and effectively preventing the two connecting frames from continuing to rotate in the reverse direction. The double protection mechanism thus formed greatly improves the safety and durability of the rotating shaft, enabling it to adapt to various extreme use conditions, while also providing a clear reverse rotation limit for the user, avoiding structural damage due to improper operation.

[0037] In some embodiments, with reference to Figures 1-3 , the first connecting frame 100 is provided with a first connecting end 120, and the second connecting frame 200 is provided with a second connecting end 220; wherein the first connecting end 120 and the second connecting end 220 are respectively used to connect two components that need to rotate relative to each other; when the included angle between the first connecting frame 100 and the second connecting frame 200 changes, the included angle between the two components connected by the first connecting end 120 and the second connecting end 220 also changes accordingly.

[0038] Specifically, the first connecting end 120 is fixed on the first connecting frame 100, and the second connecting end 220 is fixed on the second connecting frame 200, which are respectively connected to the two external components that need to rotate relative to each other through screws, buckles, adhesion or other fixing methods. When the first connecting frame 100 and the second connecting frame 200 in the rotating shaft unit rotate relative to each other, the two external components connected by the first connecting end 120 and the second connecting end 220 will also change the corresponding angle.

[0039] The rotating shaft unit of the present case can be used alone, or two rotating shaft units can be arranged side by side to form a more stable and more functional rotating shaft, with reference to Figure 1 . Further, two rotating shaft units are directly provided with a channel, which can be used to arrange cables, sensors or other functional elements, enhancing the practicality and application range of the rotating shaft. For example, in the application of smart glasses, this channel can be used to connect the electronic elements in the frame with the battery or control module in the temple, ensuring the aesthetics and improving the integration and space utilization of the structure.

[0040] The application also provides a pair of glasses, comprising a frame, a temple and the above-mentioned pivot unit or pivot connecting the frame and the temple. The glasses can adjust the damping effect of the opening and closing of the temple, so that the user can adjust the tightness of the temple according to personal preferences or use environment, which can ensure the stable positioning of the temple and provide a comfortable opening and closing experience. At the same time, when two pivot units are arranged side by side, the electronic circuit connection required by the smart glasses can be conveniently arranged through the channel reserved between the two pivot units, the signal and power transmission between the frame and the temple is realized, and the functionality and expandability of the glasses are enhanced.

[0041] The above is a specific description of the preferred embodiment of the application, but the application is not limited to the above-mentioned embodiments, and those skilled in the art can make various equivalent modifications or replacements without departing from the spirit of the application. These equivalent modifications or replacements are all included in the scope defined by the claims of the application.

Claims

1. A pivot unit, comprising a first connecting frame, a second connecting frame and a connecting shaft, characterized in that: the first connecting frame comprises a fixed seat, one end of the connecting shaft is movably connected with the fixed seat; the second connecting frame is provided with a supporting portion, the supporting portion has a through hole for the other end of the connecting shaft to pass through, the other end of the connecting shaft passes through the through hole and is fixed by a limiting piece, and an elastic element is arranged on the connecting shaft between the limiting piece and the supporting portion; the fixed seat has adjacent first and second contact edges, which alternately abut against the supporting portion during rotation, so that the connecting shaft moves axially to compress or release the elastic element, thereby realizing the damping rotation and position locking of the first and second connecting frames; and the position of the limiting piece relative to the supporting portion is adjustable to adjust the pre-compression degree of the elastic element. 2.The pivot unit according to claim 1, characterized in that: when the first contact edge abuts against the supporting portion, a first preset angle is formed between the first and second connecting frames; when the second contact edge abuts against the supporting portion, a right angle is formed between the first and second connecting frames; and an included angle between the first and second contact edges is obtuse, and the obtuse angle is the same as the first preset angle. 3.The pivot unit according to claim 2, characterized in that: a stop surface is arranged on the first connecting frame on a side away from the second contact edge; a stop plate is arranged on the second connecting frame, and the stop plate is arranged perpendicularly to the supporting portion; when the first and second connecting frames are located on the same straight line, the stop surface and the stop plate abut against each other in cooperation to limit the relative rotation between the first and second connecting frames. 4.The pivot unit according to claim 3, characterized in that: the fixed seat has a bottom surface, and the bottom surface is arranged perpendicularly to the stop surface; a stop block is arranged on the connecting shaft on a side close to the stop surface; when the first and second connecting frames exceed the position on the same straight line and continue to rotate by a second preset angle, the stop block and the bottom surface abut against each other in cooperation to prevent the first and second connecting frames from continuing to rotate in the reverse direction. 5.The pivot unit according to any one of claims 1-4, characterized in that: the connection between the first and second contact edges is in an arc structure. 6.The pivot unit according to claim 1, characterized in that: a first connecting end is arranged on the first connecting frame, and a second connecting end is arranged on the second connecting frame; the first and second connecting ends are respectively used to connect two components that need to rotate relative to each other; and when the included angle between the first and second connecting frames changes, the included angle between the two components connected by the first and second connecting ends also changes accordingly. 7.The pivot unit according to claim 1, characterized in that: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ The limiting member is a nut, the other end of the connecting shaft is provided with an external thread, the nut is threadedly engaged with the external thread, and the pre-compression degree of the elastic element is adjusted by adjusting the rotating position of the nut on the connecting shaft.

8. The rotational shaft unit according to claim 1, characterized by The elastic element is a spring.

9. A rotating shaft, characterized by Two pivot shaft units as claimed in any of claims 1-8 are arranged side by side. The two pivot shaft units are directly provided with a passage.

10. Eyeglasses, characterized in that, A pivot shaft as claimed in any of claims 1-8 or a pivot shaft as claimed in claim 9.

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