AR coil spring hinge

Abstract

The utility model discloses an AR coil 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 coil spring, a pin shaft, a transmission pin, a first stop piece and a second stop piece, the stator and the rotor are mutually hinged through the transmission pin, the pin shaft is fixed on two connecting holes of the stator, one end of the coil spring is sleeved on the transmission pin, and the other end of the coil spring is sleeved on the second stop piece. One end of the transmission pin is fixedly connected with a first stop piece, the other end of the transmission pin is provided with a second stop piece, and the two sides of the connecting portion of the stator and the transmission pin and the two sides of the connecting portion of the rotor and the transmission pin are correspondingly provided with a first rotation limiting groove and a second rotation limiting groove respectively. The first stop piece and the second stop piece are correspondingly installed between the first rotation limiting groove and the second rotation limiting groove respectively, and the movable angle between the first stop piece and the second stop piece ranges from 0 degree to 115 degrees. According to the utility model, a stable hovering state and a convenient automatic pop-up function are provided, positioning can be realized in folding and unfolding states, 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 spiral 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. AR glasses are wearable devices that combine virtual information with the real world and can superimpose digital content in the user's field of vision. 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 spectacle frame. For example, the rotating shaft mechanism, connection mechanism for glasses, and glasses disclosed in the invention patent number CN117270212A achieve the outward expansion and rebound function through elastic columns, compression springs, elastic pads, elastic sheets, elastic sheet groups, etc. The structure of its rotating shaft mechanism is complex, with many components, and there are often large interferences during the design and assembly processes, making the assembly difficult and very inconvenient. Content 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 spiral spring hinge that can provide a stable hovering state and a convenient automatic spring-opening function, can easily adjust the angle, and can achieve a positioning effect in both the unfolded and folded states.

[0004] To achieve the above purpose, the utility model provides an AR spiral spring hinge, which includes a stator for fixedly connecting the frame of the AR glasses, a rotor for fixedly connecting the temple of the AR glasses, a spiral spring, a pin shaft, a transmission pin, a first stop piece, and a second stop piece. One end of the stator and one end of the rotor are hinged to each other through the transmission pin to achieve rotational connection. A parallel connection hole is opened in the middle of the stator. The pin shaft is fixedly arranged on the two connection holes of the stator. One end of the spiral spring is sleeved on the transmission pin, and the other end of the spiral spring is sleeved on the pin shaft. One end of the transmission pin is fixedly connected with the first stop piece, and the other end of the transmission pin is installed with a second stop piece that corresponds to the shape of the first stop piece and is axially offset. First rotation limit grooves for the first stop piece and the second stop piece to be rotatably connected are respectively opened on both sides of the connection parts of the stator and the rotor with the transmission pin. The limit parts of the first rotation limit groove and the second rotation limit groove are axially offset. The first stop piece and the second stop piece are respectively installed between the communicating parts of the first rotation limit groove and the second rotation limit groove and the movable angle between the two is 0 degrees to 115 degrees.

[0005] Preferably, one horizontal side portion of the first stop plate and the second stop plate is slidably disposed in the first rotation limiting groove, and the other horizontal side portion of the first stop plate and the second stop plate is slidably disposed in the second rotation limiting groove.

[0006] Preferably, the first stop plate and the second stop plate are both shaped as a fan-shaped cam structure formed by a circular mounting portion and a fan-shaped sliding portion.

[0007] Preferably, the first rotation limit groove and the second rotation limit groove are respectively configured to correspond to a first fan-shaped cam through hole structure and a second fan-shaped cam through hole structure formed by a combination of a circular clamping portion and a fan-shaped limit portion, and the arc length of the fan-shaped limit portion of the second fan-shaped cam through hole structure is greater than the arc length of the fan-shaped limit portion of the first fan-shaped cam through hole structure, so that the rotation range of the second rotation limit groove is greater than the rotation range of the first rotation limit groove.

[0008] Preferably, the circular mounting portions of the first stop plate and the second stop plate are consistent in size with the circular clamping portions of the first rotation limit groove and the second rotation limit groove, and the arc lengths of the fan-shaped sliding portions of the first stop plate and the second stop plate are smaller than the arc lengths of the fan-shaped limit portions of the first fan-shaped cam through hole structure.

[0009] Preferably, a clamping opening groove is horizontally opened in the middle of the transmission pin for horizontal placement of one end of the coil spring.

[0010] Preferably, the cross-sectional shape of the connecting portion of the stator and the rotor is set to a "凵"-shaped structure.

[0011] Preferably, the rotor further comprises a fixing portion for fixedly connecting to the temple of the AR glasses, and the fixing portion of the rotor is fixedly connected to an extension portion of its connecting portion at an angle inward.

[0012] Preferably, the coil spring is made of an iron-based material.

[0013] Preferably, the rotor, the pin shaft, the transmission pin, the first stop plate and the second stop plate are all made of titanium alloy.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The utility model has a simple structure and a reasonable design. The stator and the rotor are hinged to each other through a transmission pin and a coil spring to achieve a rotational connection, and the rotation of the rotor within different angular ranges is limited by the cooperation of a stop piece and a limiting groove. The purpose is to provide a stable hovering state and a convenient automatic spring-opening function when the user uses the AR glasses, while taking into account both mechanical properties and aesthetics. The angle can be easily adjusted, and its structure is compact, small in size, light in weight, and easy to assemble. Whether in the unfolded or folded state, a positioning effect can be achieved, greatly improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] 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 drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0017] Figure 1 is an overall structural schematic diagram of an AR coil spring hinge provided by an embodiment of the present utility model Figure 1 (0-degree folded state);

[0018] Figure 2 is an overall structural schematic diagram of an AR coil spring hinge provided by an embodiment of the present utility model Figure 2 (80-degree freely unfolded state);

[0019] Figure 3 is an overall structural schematic diagram of an AR coil spring hinge provided by an embodiment of the present utility model Figure 3 (115-degree maximum unfolded angle state);

[0020] Figure 4 is an overall exploded schematic diagram of an AR coil spring hinge provided by an embodiment of the present utility model;

[0021] Figure 5 is a partial exploded schematic diagram of an AR coil spring hinge provided by an embodiment of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present utility model.

[0023] Please refer toFigure 4 , an embodiment of the present utility model provides an AR scroll 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 scroll spring 3, a pin shaft 4, a transmission pin 5, a first stop piece 6, and a second stop piece 7. The following will describe each component of this embodiment in detail with reference to the accompanying drawings.

[0024] As Figure 1 and Figure 4 shown, one end of the stator 1 and one end of the rotor 2 can be hinged to each other through the transmission pin 5 to achieve rotational connection. A parallel connection hole 11 is provided in the middle of the stator 1. The pin shaft 4 is fixedly arranged on the two connection holes 11 of the stator 1. One end of the scroll spring 3 is sleeved on the transmission pin 5, and the other end of the scroll spring 3 is sleeved on the pin shaft 4. A first stop piece 6 is fixedly connected to one end of the transmission pin 5, and a second stop piece 7 corresponding to the shape of the first stop piece 6 and axially offset is installed at the other end of the transmission pin 5. First rotation limiting grooves 12 for the first stop piece 6 and the second stop piece 7 to be rotatably connected are respectively provided on both sides of the connection parts of the stator 1 and the rotor 2 with the transmission pin 5, and the limiting parts of the first rotation limiting groove 12 and the second rotation limiting groove 21 are axially offset. The first stop piece 6 and the second stop piece 7 are respectively installed between the communicating parts of the first rotation limiting groove 12 and the second rotation limiting groove 21 and the active angle between them is 0 degrees to 115 degrees.

[0025] Among them, when the scroll spring 3 drives the cam member 22 to rotate within the range of 80 degrees to 115 degrees through the rotor 2, it deforms to generate torque to achieve automatic rebound; the first rotation limiting groove 12 and the second rotation limiting groove 21 cooperate with the first stop piece 6 and the second stop piece 7 to slide to limit the rotation angle of the rotor 2.

[0026] In order to ensure that the scroll spring 3 can effectively return to its original shape when bearing a load, the scroll spring 3 is preferably 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.

[0027] Furthermore, the materials of the rotor 2, the pin shaft 4, the transmission pin 5, the first stop piece 6, and the second stop piece 7 can all be set as titanium alloy materials. 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), thereby reducing the burden on people wearing AR glasses.

[0028] In specific implementation, when the rotor 2 rotates within the range of 0 to 80 degrees, it can rotate around the transmission pin 5 and is in an undamped state. When the rotor 2 rotates between 80 and 115 degrees, it can drive the transmission pin 5 and the coil spring 3 to rotate. The deformation of the coil spring 3 generates torque, thereby realizing automatic rebound of the rotor from 280 to 115 degrees. When the rotor 2 rotates from 80 to 0 degrees, the transmission pin 5 remains fixed and the rotation of the rotor 2 is in an undamped state.

[0029] like Figure 5 As shown, one horizontal side portion of the first stop plate 6 and the second stop plate 7 can be slidably disposed in the first rotation limiting groove 12 , and the other horizontal side portions of the first stop plate 6 and the second stop plate 7 can be slidably disposed in the second rotation limiting groove 21 .

[0030] In this embodiment, the shapes of the first stop piece 6 and the second stop piece 7 can both be set to be a fan-shaped cam structure formed by a combination of a circular mounting portion 601 and a fan-shaped sliding portion 602 .

[0031] Furthermore, the first rotation limit groove 12 and the second rotation limit groove 21 can be respectively configured as a first fan-shaped cam through hole structure and a second fan-shaped cam through hole structure formed by a combination of a circular clamping portion 1201 and a fan-shaped limit portion 1202, and the arc length of the fan-shaped limit portion 1202 of the second fan-shaped cam through hole structure is greater than the arc length of the fan-shaped limit portion 1202 of the first fan-shaped cam through hole structure, so that the rotation range of the second rotation limit groove 21 is greater than the rotation range of the first rotation limit groove 12.

[0032] Among them, the fan-shaped cam structure, the first fan-shaped cam through-hole structure and the second fan-shaped cam through-hole structure can reduce space occupation, have the characteristics of small volume (outer diameter 4mm), and can achieve more accurate rotation control and compact structural design.

[0033] Specifically, the circular mounting portion 601 of the first stop plate 6 and the second stop plate 7 can be consistent in size with the circular clamping portion 1201 of the first rotation limit groove 12 and the second rotation limit groove 21, and the arc length of the fan-shaped sliding portion 602 of the first stop plate 6 and the second stop plate 7 is smaller than the arc length of the fan-shaped limit portion 1202 of the first fan-shaped cam through hole structure.

[0034] In order to facilitate the sleeve connection of the coil spring 3 in the driving pin 5 , a clamping opening groove 51 for horizontal placement of one end of the coil spring 3 may be horizontally opened in the middle of the driving pin 5 .

[0035] The cross-sectional shape of the connection portion between the stator 1 and the rotor 2 can be set to a "凵"-shaped structure.

[0036] Preferably, the rotor 2 further includes a fixing portion for fixedly connecting with the temple of the AR glasses, and the fixing portion of the rotor 2 is fixedly connected to the extending portion of the connecting portion in an inclined manner towards the inner side.

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

[0038] As Figures 1 to 3 shown, the stator is used for fixedly connecting the frame of the AR glasses and can remain stationary when the rotor rotates. The rotor can freely rotate within the range of 0 degrees to 80 degrees, and there is no damping effect within this rotation range.

[0039] When the rotor rotates to 80 degrees and enters the range of 80 degrees to 115 degrees, the rotor starts to drive the transmission pin to rotate at this time. The rotation of the transmission pin further causes the rotation of the torsion spring. The torsion spring generates torque during the deformation process. The generation of this torque enables it to automatically rebound to 80 degrees after reaching 115 degrees. The maximum force value of the automatic spring opening is 100 N·MM, and the maximum spring opening angle is 35 degrees, thereby achieving the effect of automatic reset.

[0040] During the process of the rotor rotating back from 80 degrees to 0 degrees, the position of the transmission pin remains fixed. At this time, the rotor is in a non-damping state and is allowed to rotate freely.

[0041] In summary, the stator and rotor of the present invention are hinged to each other and rotationally connected through the transmission pin and the torsion spring, and the rotation of the rotor within different angular ranges is limited by the cooperation of the stop piece and the limit groove. The purpose is to provide a stable hovering state and a convenient automatic spring opening function when the user uses the AR glasses. At the same time, it takes into account the mechanical properties and aesthetics, can easily adjust the angle, has a compact structure, small volume, light weight, and is easy to assemble. Whether in the unfolded or folded state, the positioning effect can be achieved, greatly improving the use experience.

[0042] The above embodiments are the preferred embodiments of the present invention, but the embodiments of the present invention are not limited by the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications made without departing from the spirit and principle of the present invention shall be equivalent replacement methods and are all included in the protection scope of the present invention.

Claims

1. An AR coil spring hinge, characterized in that: The invention comprises a stator (1) for fixing and connecting an AR glasses frame, a rotor (2) for fixing and connecting an AR glasses temple, a coil spring (3), a pin shaft (4), a transmission pin (5), a first stop plate (6), and a second stop plate (7); one end of the stator (1) and one end of the rotor (2) are hinged to each other through the transmission pin (5) and are rotatably connected; a connecting hole (11) arranged in parallel is provided in the middle of the stator (1); the pin shaft (4) is fixedly arranged on two connecting holes (11) of the stator (1); one end of the coil spring (3) is sleeved on the transmission pin (5); the other end of the coil spring (3) is sleeved on the pin shaft (4); one end of the transmission pin (5) is fixedly connected to the first stop plate (6); the transmission pin The other end of the stator (1) and the rotor (2) are provided with a second stop plate (7) which is shaped corresponding to the first stop plate (6) and is axially offset. The two sides of the connection part between the stator (1) and the rotor (2) and the transmission pin (5) are respectively provided with a first rotation limit groove (12) and a second rotation limit groove (21) for rotationally connecting the first stop plate (6) and the second stop plate (7). The limiting parts of the first rotation limit groove (12) and the second rotation limit groove (21) are respectively axially offset. The first stop plate (6) and the second stop plate (7) are respectively and correspondingly installed between the connecting parts of the first rotation limit groove (12) and the second rotation limit groove (21), and the movable angle between the two is 0 to 115 degrees.

2. The AR coil spring hinge according to claim 1, characterized in that: One horizontal side portion of the first stop plate (6) and the second stop plate (7) is slidably disposed in the first rotation limiting groove (12), and the other horizontal side portion of the first stop plate (6) and the second stop plate (7) is slidably disposed in the second rotation limiting groove (21).

3. The AR coil spring hinge according to claim 1, characterized in that: The shapes of the first stop plate (6) and the second stop plate (7) are both configured as fan-shaped cam structures formed by a combination of a circular mounting portion (601) and a fan-shaped sliding portion (602).

4. The AR coil spring hinge according to claim 3, characterized in that: The first rotation limit groove (12) and the second rotation limit groove (21) are respectively configured to correspond to a first fan-shaped cam through hole structure and a second fan-shaped cam through hole structure formed by a combination of a circular clamping portion (1201) and a fan-shaped limit portion (1202), and the arc length of the fan-shaped limit portion (1202) of the second fan-shaped cam through hole structure is greater than the arc length of the fan-shaped limit portion (1202) of the first fan-shaped cam through hole structure, so that the rotation range of the second rotation limit groove (21) is greater than the rotation range of the first rotation limit groove (12).

5. The AR coil spring hinge according to claim 4, characterized in that: The circular mounting portions (601) of the first stop plate (6) and the second stop plate (7) are consistent in size with the circular clamping portions (1201) of the first rotation limiting groove (12) and the second rotation limiting groove (21), and the arc lengths of the fan-shaped sliding portions (602) of the first stop plate (6) and the second stop plate (7) are smaller than the arc length of the fan-shaped limiting portion (1202) of the first fan-shaped cam through hole structure.

6. The AR coil spring hinge according to claim 1, characterized in that: The middle part of the transmission pin (5) is horizontally provided with a clamping opening groove (51) for one end of the coil spring (3) to be horizontally placed.

7. The AR coil spring hinge according to claim 1, characterized in that: The cross-sectional shapes of the connecting parts of the stator (1) and the rotor (2) are both set to a "U" - shaped structure.

8. The AR coil spring hinge according to claim 1, characterized in that: The rotor (2) further includes a fixing part for fixedly connecting with the temple of the AR glasses. The fixing part of the rotor (2) is fixedly connected to the extending part of the connecting part in an inclined manner towards the inner side.

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

10. The AR coil spring hinge according to claim 1, characterized in that: The materials of the rotor (2), the pin shaft (4), the transmission pin (5), the first stop piece (6) and the second stop piece (7) are all set to titanium alloy materials.

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