AR pressure spring hinge

Abstract

The utility model discloses an AR pressure spring hinge which comprises a stator used for being fixedly connected with an AR glasses frame, a rotor used for being fixedly connected with AR glasses legs, a pressure spring and a gasket, the top of the stator is arranged to be of an opening structure, and the inner wall of the rotor is fixedly connected with a connecting column. The rotor is rotatably inserted into the inner side wall of the stator through a connecting column so as to be rotatably connected with the stator, the connecting column is fixedly sleeved with a cam piece, the cam piece is located between the rotor and the inner side wall of the stator, and a boss making contact with the bottom of the cam piece is arranged in the middle of the inner side wall of the stator. A clamping groove for clamping the pressure spring is formed between the boss and the inner wall of the stator, the rotor can drive the cam piece to be in contact with the pressure spring and compress the pressure spring to deform the pressure spring when rotating, and the rotor can rotate within the moving angle range of 0-90 degrees relative to the stator through the cam piece. According to the utility model, a stable hovering state and a convenient automatic pop-up function can be provided, the mechanical property and the aesthetic property are considered, and the use experience feeling is good.

Description

Technical Field

[0001] The utility model relates to the technical field of AR glasses, and more specifically, to an AR compression spring hinge. Background Art

[0002] Augmented Reality (AR) is a technology that calculates the position and angle of a camera image in real time and adds corresponding images. An AR glasses is a wearable device that combines virtual information with the real world and can superimpose digital content in the user's field of view. Existing AR glasses are usually equipped with a foldable rotating shaft mechanism, which is located between the frame and the bracket, enabling the AR glasses to be conveniently opened and closed to meet the user's portable storage needs. However, in the prior art, the rotating shaft mechanism generally uses a mechanical hinge to achieve the rotation control of the glasses frame. For example, a near-eye display glasses provided by the utility model patent No. CN217718301U has a complex structure of the rotating shaft assembly. The rotation of the bracket of the glasses is controlled by a compression spring, which often requires a large installation space during the design and assembly process, and may affect the installation of other components or cause interference, resulting in difficult assembly. Summary of the Utility Model

[0003] The purpose of the utility model is to overcome the above-mentioned defects in the prior art and provide an AR compression spring hinge that can provide a stable hovering state and a convenient automatic spring-opening function, while taking into account mechanical properties and aesthetics, and can easily adjust the angle.

[0004] To achieve the above object, the present utility model provides an AR compression spring hinge, which includes a stator for fixedly connecting the frame of an AR glasses, a rotor for fixedly connecting the temple of the AR glasses, a compression spring and a gasket. The top of the stator is provided with an open structure. A connecting column is fixedly connected to the inner wall of the rotor. The rotor is rotatably inserted into the inner side wall of the stator through the connecting column to achieve rotational connection therewith. A cam member is fixedly sleeved on the connecting column. The cam member is located between the rotor and the inner side wall of the stator. A boss is provided in the middle of the inner side wall of the stator, which is in contact with the bottom of the cam member and slidably contacts the outer side wall of the connecting column. The gasket is fixedly connected to one end of the connecting column and is rotatably arranged in the groove on the outer side wall of the boss. A clamping groove for clamping the compression spring is formed between one side of the top of the boss and one side inner wall of the stator. A limiting convex portion for limiting one end of the compression spring extends from one side of the clamping groove. When the rotor rotates, it can drive the cam member to contact and compress the compression spring to cause it to deform. The rotor can rotate relative to the stator within an active angle range of 0 degrees to 90 degrees through the cam member. When the rotor rotates 80 degrees to 90 degrees, the cam member presses the compression spring, and the compression spring can provide a large torque to the rotor to make it bounce back automatically. When the rotor rotates to 90 degrees, the compression spring can automatically recover and bounce back without applying force, and the rotor will automatically rebound to the 80-degree state. When the rotor rotates 0 degrees to 80 degrees, a small friction torque is generated by the slight extrusion of the compression spring by the cam member to reach the hovering state.

[0005] Preferably, a first connecting plate for fixedly connecting with the temple of the AR glasses extends outward from one side of the rotor, and the outer side wall of the rotating part of the first connecting plate is vertically upward.

[0006] Preferably, the top open structure of the stator is formed by relatively spaced first arc side walls and second arc side walls.

[0007] Preferably, the gap between the first arc side wall and the second arc side wall forms two relatively arranged channels. The height of the top surface of the first arc side wall close to the compression spring is flush with the height of the top surface of the rotor. One end of the second arc side wall extends to be provided with a second connecting plate for fixedly connecting the frame of the AR glasses. The height of the top surface of the second connecting plate is higher than the height of the second arc side wall and is flush with the first arc side wall. The top of one end of the second connecting plate close to the rotor can slidably contact its outer side wall. The bottom of the end surface of the rotor can slidably contact the top surface of the second arc side wall and is limited by the first arc side wall and the second connecting plate located on one side wall of the channel far from the second connecting plate.

[0008] Preferably, the cam member includes a cylindrical structure and a cam structure. The cam structure is fixedly arranged on the outer side wall of the cylindrical structure. The cylindrical structure is a hollow structure with openings at both ends, and the cylindrical structure is fixedly sleeved on the connecting column of the rotor.

[0009] Preferably, the other side of the clamping groove is an arc surface.

[0010] Preferably, the compression spring is made of an iron-based material.

[0011] Preferably, the stator is made of a titanium alloy material.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] 1. The structure of the present utility model is simple and reasonably designed. During the rotation process of the cam member of the rotor and the compression spring inside the stator within different angular ranges, the compression spring is extruded, causing it to deform and generate a large torque or a small frictional torque. The purpose is to provide a stable hovering state and a convenient automatic spring-back function when the user uses the AR glasses. At the same time, it takes into account both mechanical properties and aesthetics, can easily adjust the angle, has a compact structure, small size, light weight, is easy to assemble, and can realize rapid folding, storage, and unfolding for use, greatly improving the user experience.

[0014] 2. The present utility model provides a space for the FPC wire to pass through, and the wire will not be exposed during the rotation process of the compression spring hinge. By hiding the FPC design, the overall aesthetics of the product is further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0016] Figure 1 FIG. 1 is an overall structural schematic diagram of an AR compression spring hinge provided by an embodiment of the present utility model Figure 1 (0-degree folding state);

[0017] Figure 2 FIG. 2 is a cross-sectional structural schematic diagram of an AR compression spring hinge provided by an embodiment of the present utility model Figure 1 (0-degree folding state);

[0018] Figure 3 FIG. 3 is an overall structural schematic diagram of an AR compression spring hinge provided by an embodiment of the present utility model Figure 1(80-degree free expansion state);

[0019] Figure 4 It is a schematic cross-sectional structure of an AR compression spring hinge provided by an embodiment of the present invention. Figure 1 (80-degree free expansion state);

[0020] Figure 5 It is a schematic overall structure of an AR compression spring hinge provided by an embodiment of the present invention. Figure 1 (90-degree maximum angle state);

[0021] Figure 6 It is a schematic cross-sectional structure of an AR compression spring hinge provided by an embodiment of the present invention. Figure 1 (90-degree maximum angle state);

[0022] Figure 7 It is an exploded view of an AR compression spring hinge provided by an embodiment of the present invention. Specific embodiments

[0023] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0024] Please refer to Figure 7 , an embodiment of the present invention provides an AR compression spring hinge, which includes a stator 1 for fixedly connecting the frame of the AR glasses, a rotor 2 for fixedly connecting the temple of the AR glasses, a compression spring 3, a gasket 4 and other components. The following will describe each component of this embodiment in detail with reference to the accompanying drawings.

[0025] As Figure 1 , Figure 2 and Figure 7As shown in the figure, the top of the stator 1 can be set as an open structure. A connecting column 21 is fixedly connected to the inner wall of the rotor 2. The rotor 2 is rotatably inserted into the inner side wall of the stator 1 through the connecting column 21 to achieve rotational connection therewith. A cam member 22 is fixedly sleeved on the connecting column 21. The cam member 22 is located between the rotor 2 and the inner side wall of the stator 1. A boss 11 is provided in the middle of the inner side wall of the stator 1, which is in contact with the bottom of the cam member 22 and slidably contacts the outer side wall of the connecting column 21. A gasket 4 is fixedly connected to one end of the connecting column 21 and is rotatably arranged in the outer side wall groove of the boss 11. A clamping groove 10 for clamping the compression spring 3 is formed between one side of the top of the boss 11 and one side inner wall of the stator 1. A limiting convex portion 101 for limiting one end of the compression spring 3 extends from one side of the clamping groove 10. When the rotor 2 rotates, it can drive the cam member 22 to contact the compression spring 3 and compress the compression spring 3 to cause it to deform. The rotor 2 can rotate relative to the stator 1 within an angular range of 0 degrees to 90 degrees through the cam member 22.

[0026] Among them, the top open structure of the stator 1 is for the insertion and rotational connection of the rotor 2. The cam member 22 of the rotor 2 is for contacting and compressing the compression spring 3. The compression spring 3 can deform when the rotor 2 rotates, realizing the automatic bouncing open and hovering state of the rotor 2.

[0027] In this embodiment, the gasket 4 is fixedly connected to one end of the connecting column 21 by welding, which can make the rotational connection between the rotor 2 and the stator 1 stable and prevent it from falling off. The side of the boss 11 away from the compression spring 3 can be used to hide the FPC wiring, avoiding the interference and damage risks that may be brought by the exposed cables, and further improving the overall aesthetic degree and user experience of the AR glasses.

[0028] Preferably, the other side of the clamping groove 10 can be set as an arc surface 102.

[0029] Preferably, the compression spring 3 can be made of an iron-based material. The iron-based material has good workability and is easy to be formed and processed into various shapes and sizes.

[0030] Furthermore, the material of the stator 1 can be set as a titanium alloy material. Among them, the titanium alloy material can reduce the overall weight and improve its flexibility. It is light and the overall weight is relatively light (about 1g), thus reducing the burden on people wearing the AR glasses.

[0031] During specific implementation, when the rotor 2 rotates 80 degrees to 90 degrees, its cam member 22 squeezes the compression spring 3. The compression spring 3 can provide a large torque for the rotor 2 to make it bounce open automatically. When the rotor 2 rotates to 90 degrees, the compression spring 3 can automatically recover and bounce open without applying force. The rotor 2 will automatically rebound to the 80-degree state. When the rotor 2 rotates from 0 degrees to 80 degrees, a small friction torque is generated by the slight extrusion of the cam member 22 on the compression spring 3 to reach the hovering state.

[0032] As shown Figures 3 to 6 in the figure, on one side of the rotor 2, a first connecting plate 23 for fixedly connecting with the temple of the AR glasses can be extended outward, and the outer wall of the rotating part of the first connecting plate 23 relative to the rotor 2 is vertically arranged upward.

[0033] Among them, relative to the rotating part of the rotor 2, the first connecting plate 23 is vertically arranged upward to ensure the firmness and stability of the connection.

[0034] In this embodiment, the top opening structure of the stator 1 is formed by the first arc-shaped side wall 12 and the second arc-shaped side wall 13 being arranged at intervals relatively.

[0035] Specifically, in order to realize the necessary rotating space and guiding function for the movement of the rotor 2, gaps between the first arc-shaped side wall 12 and the second arc-shaped side wall 13 can form two relatively arranged channels 14. The height of the top surface of the first arc-shaped side wall 12 close to the compression spring 3 is flush with the height of the top surface of the rotor 2. One end of the second arc-shaped side wall 13 extends to be provided with a second connecting plate 15 for fixedly connecting with the frame of the AR glasses. The height of the top surface of the second connecting plate 15 is higher than the height of the second arc-shaped side wall 13 and is flush with the first arc-shaped side wall 12. The top of one end of the second connecting plate 15 close to the rotor 2 can be in sliding contact with its outer wall. The bottom of the end surface of the rotor 2 can be in sliding contact with the top surface of the second arc-shaped side wall 13 and is limited by the first arc-shaped side wall 12 on one side wall of the channel 14 far from the second connecting plate 15 and the second connecting plate 15.

[0036] As shown Figure 7 in the figure, the cam member 22 can include a cylindrical structure 221 and a cam structure 222. The cam structure 222 is fixedly arranged on the outer wall of the cylindrical structure 221. The cylindrical structure 221 is arranged as a hollow structure with openings at both ends. The cylindrical structure 221 is fixedly sleeved on the connecting column 21 of the rotor 2.

[0037] The operating principle of this embodiment is as follows:

[0038] As shown Figures 1 to 6 in the figure, the stator is used for fixedly connecting with the frame of the AR glasses and can keep stationary when the rotor rotates. In the range where the rotor rotates from 0 degrees to 80 degrees, the compression spring provides stable frictional torque support so that it can maintain a hovering state. This state ensures that the AR glasses can maintain the required angle during use and will not rotate due to gravity or external force.

[0039] When the rotor rotates to 80 degrees, the rotor presses and deforms the compression spring through the cam member, thus enabling the function of automatic springing open. It can be automatically released when reaching 90 degrees. When automatically springing open, the rotating shaft can provide a maximum force value of 250 N·MM. This force value design meets the requirements of the AR glasses hinge with a large angle but a small force value, ensuring that the structure will not be damaged during the springing open process.

[0040] In summary, the utility model has the following characteristics:

[0041] 1. The structure of the utility model is simple and reasonably designed. Through the extrusion of the compression spring by the cam member of the rotor during the rotation process within different angle ranges inside the stator, the compression spring deforms to generate a large torque or a small frictional torque, aiming to provide a stable hovering state and a convenient automatic springing open function when the user uses AR glasses. At the same time, it takes into account both mechanical properties and aesthetics, can easily adjust the angle, has a compact structure, small size, light weight, is easy to assemble, and can achieve rapid folding, storage, and unfolding for use, greatly improving the user experience.

[0042] 2. The utility model provides a space for the FPC wire to pass through, and the wire will not be exposed during the rotation process of the compression spring hinge. Through the hidden FPC design, the overall aesthetics of the product is further improved.

[0043] The above embodiments are the preferred embodiments of the utility model, but the embodiments of the utility model are not limited to the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications made without departing from the spirit and principle of the utility model shall be equivalent replacement methods and are all included in the protection scope of the utility model.

Claims

1. An AR compression spring hinge, characterized in that: The invention comprises a stator (1) for fixedly connecting an AR glasses frame, a rotor (2) for fixedly connecting an AR glasses temple, a compression spring (3) and a gasket (4); the top of the stator (1) is arranged as an open structure; a connecting column (21) is fixedly connected to the inner wall of the rotor (2); the rotor (2) is rotatably inserted into the inner wall of the stator (1) through the connecting column (21) to achieve a rotatable connection with the stator (1); a cam member (22) is fixedly sleeved on the connecting column (21); the cam member (22) is located between the rotor (2) and the inner wall of the stator (1); a cam member (22) is provided in the middle of the inner wall of the stator (1) which contacts the bottom of the cam member (22) and slides with the outer wall of the connecting column (21). The invention relates to a boss (11) for dynamic contact, wherein the gasket (4) is fixedly connected to one end of the connecting column (21) and is rotatably arranged in the groove of the outer wall of the boss (11), and a clamping groove (10) for clamping the compression spring (3) is formed between the top side of the boss (11) and the inner wall of one side of the stator (1), and a limiting convex part (101) for limiting one end of the compression spring (3) is extended from one side of the clamping groove (10), and the rotor (2) can drive the cam member (22) to contact the compression spring (3) and compress the compression spring (3) to deform it when rotating, and the rotor (2) can rotate relative to the stator (1) within the range of an active angle of 0 to 90 degrees through the cam member (22).

2. The AR compression spring hinge according to claim 1, characterized in that: A first connecting plate (23) for fixed connection with the temple of AR glasses is provided on one side of the rotor (2) extending outward, and the first connecting plate (23) is vertically arranged upward relative to the outer side wall of the rotating part of the rotor (2).

3. The AR compression spring hinge according to claim 1, characterized in that: The top opening structure of the stator (1) is composed of a first arc-shaped side wall (12) and a second arc-shaped side wall (13) arranged relatively spaced apart.

4. The AR compression spring hinge according to claim 3, characterized in that: The gap between the first curved side wall (12) and the second curved side wall (13) forms two channels (14) arranged opposite to each other. The top surface height of the first curved side wall (12) close to the compression spring (3) is kept flush with the top surface height of the rotor (2). A second connecting plate (15) for fixedly connecting to the AR glasses frame is extended from one end of the second curved side wall (13). The top surface height of the second connecting plate (15) is higher than the height of the second curved side wall (13) and is kept flush with the first curved side wall (12). The top of one end of the second connecting plate (15) close to the rotor (2) can be in sliding contact with its outer wall. The bottom of the end surface of the rotor (2) can be in sliding contact with the top surface of the second curved side wall (13) and is limited by the first curved side wall (12) and the second connecting plate (15) on one side wall of the channel (14) away from the second connecting plate (15).

5. The AR compression spring hinge according to claim 1, characterized in that: The cam member (22) comprises a cylindrical structure (221) and a cam structure (222); the cam structure (222) is fixedly arranged on the outer wall of the cylindrical structure (221); the cylindrical structure (221) is arranged as a hollow structure with openings at both ends; and the cylindrical structure (221) is fixedly sleeved on the connecting column (21) of the rotor (2).

6. The AR compression spring hinge according to claim 1, characterized in that: The other side of the clamping groove (10) is arranged as an arc-shaped surface (102).

7. The AR compression spring hinge according to claim 1, characterized in that: The compression spring (3) is made of an iron-based material.

8. The AR compression spring hinge according to claim 1, characterized in that: The material of the stator (1) is set to be a titanium alloy material.

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