AR connecting device

Abstract

The invention belongs to the technical field of AR glasses, and particularly relates to an AR connecting device which comprises a sliding positioning block. A pair of sliding positioning blocks is arranged; an elastic belt is connected in front of the sliding positioning block; a pair of buttons is connected into the sliding positioning block in a sliding mode. A pair of positioning plates is arranged in the sliding positioning block; a pair of telescopic rods is hinged between the button and the positioning plate; the middle of the telescopic rod is rotationally connected to the inner side wall of the sliding positioning block. A spring is mounted between the positioning plate and the inner side wall of the sliding positioning block; through the cooperation of the sliding positioning block and the elastic band, when the glasses are used on the head of a wearer, the glasses are not prone to slipping, and the posture of the heavy glasses on the head of the wearer is kept stable.

Description

Technical Field

[0001] The present invention belongs to the technical field of AR glasses, and specifically relates to an AR connection device. Background Art

[0002] AR glasses are devices that can display images in front of the wearer's eyes, and can also record scenes near the wearer.

[0003] A Chinese patent with publication number CN111240023A discloses an AR connection device, an AR glasses device and an AR glasses assembly method, which includes a limiting beam for limiting the position of a waveguide plate, a waveguide plate bracket for installing the waveguide plate arranged below the limiting beam, and an optical machine bracket for installing an optical machine respectively arranged on the left and right sides of the limiting beam. The waveguide plate bracket and the optical machine bracket are connected, and the waveguide plate bracket is provided with a light outlet for transmitting the virtual light generated by the optical machine to the waveguide plate. Both the limiting beam and the optical machine bracket are provided with mounting holes for assembly with appearance parts.

[0004] When using existing AR glasses, they are worn in a similar way to myopic glasses, that is, the temples are placed on the wearer's ears for support. During long-term observation, it was found that due to the heavy weight of the AR glasses themselves, they may become loose during wearing. At the same time, because the head circumferences of different wearers vary, the temples of fixed sizes are not easy to wear for each wearer.

[0005] To this end, the present invention provides an AR connection device and an AR glasses device. Summary of the Invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve its technical problems is as follows: An AR connection device described in the present invention includes sliding positioning blocks; there are a pair of the sliding positioning blocks; an elastic band is connected between the sliding positioning blocks; a pair of buttons are slidably connected inside the sliding positioning blocks; a pair of positioning plates are provided inside the sliding positioning blocks; a pair of telescopic rods are hinged between the buttons and the positioning plates; the middle of the telescopic rods is rotatably connected to the inner side wall of the sliding positioning blocks; springs are installed between the positioning plates and the inner side wall of the sliding positioning blocks. When in use, first put the glasses on the head of the user, and then put the sliding positioning blocks on the temple arms of the glasses. During the process of putting the sliding positioning blocks on the temple arms, by pressing the buttons on the top of the sliding positioning blocks, the positioning plates inside the sliding positioning blocks move closer to the inner side wall of the sliding positioning blocks, so that the sliding positioning blocks can move normally on the temple arms. When the sliding positioning blocks correctly cover the elastic band on the head of the wearer, the buttons can be released, so that the positioning plates move towards the middle of the sliding positioning blocks under the action of the springs. At this time, multiple positioning plates will squeeze the temple arms, causing the sliding positioning blocks to stop on the temple arms. At this time, through the cooperation of the sliding positioning blocks and the elastic band, when the glasses are used on the head of the wearer, it is not easy to slip, so that the relatively heavy glasses can maintain a relatively stable posture on the head of the wearer.

[0008] Preferably, suction cups are fixedly connected to the side of multiple positioning plates close to each other; multiple groups of suction cups are provided on the positioning plates; by providing suction cups between the positioning plates and the temple arms for adsorption, when the positioning plates are pressed against the temple arms by the springs, the suction cups can adsorb the positioning plates, making the position of the positioning plates on the temple arms more stable and less likely to shift, and making the fixation of the elastic band on the head of the wearer more stable.

[0009] Preferably, multiple groups of air cushions are fixedly connected to the side of the positioning plates close to the inner side wall of the sliding positioning blocks; an air duct is connected between the air cushions and the suction cups; by providing air cushions on the positioning plates and connecting them with air ducts between the air cushions and the suction cups, when the positioning plates move towards the inner side wall of the sliding positioning blocks, the air cushions can be squeezed, so that the gas inside the air cushions is ejected from the air ducts to wash the inner side wall of the suction cups, reducing the impurities on the inner side wall of the suction cups, so that the adsorption force of the suction cups can be maintained after long-term use. At the same time, when the positioning plates move towards the temple arms, the suction cups will first contact the temple arms. At this time, the air cushions will expand due to their own elasticity, and then the gas between the suction cups and the temple arms will be pumped out through the air ducts, increasing the adsorption force of the suction cups on the temple arms, increasing the control force of the positioning plates on the temple arms, and reducing the problem that the sliding positioning blocks may slide on the temple arms.

[0010] Preferably, a pair of L-shaped elastic rods are provided on both sides of the sucker; the ends of each pair of L-shaped elastic rods are close to each other; on the side of the L-shaped elastic rod away from the positioning plate, multiple groups of cleaning cotton are fixedly connected; by providing L-shaped elastic rods on both sides of the sucker, when the sucker fits onto the temple of the glasses, the L-shaped elastic rods will first contact the temple of the glasses, and then during the continuous movement of the positioning plate, the L-shaped elastic rods will drive the cleaning cotton to move on the temple of the glasses. During the continuous movement, the cleaning cotton will wipe off part of the oil stains on the temple of the glasses, so that when the sucker adsorbs the temple of the glasses, the problem of easy detachment is not likely to occur.

[0011] Preferably, an arc-shaped elastic piece is rotatably connected to the middle of the L-shaped elastic rod; one end of the arc-shaped elastic piece is fixedly connected to the middle of the bottom of the L-shaped elastic rod, and the other end is rotatably connected to an eccentric wheel; a spring piece is connected between the middle of the arc-shaped elastic piece and the middle of the L-shaped elastic rod; by providing an arc-shaped elastic piece in the middle of the L-shaped elastic rod, when the positioning plate moves towards the temple of the glasses, the end of the arc-shaped elastic piece will contact the side wall of the temple of the glasses, and then the other end of the arc-shaped elastic piece will press the L-shaped elastic rod downwards, so that the pressing force of the cleaning cotton on the temple of the glasses is stronger, so that the cleaning cotton can remove more oil stains and dust on the temple of the glasses, increasing the stability of the sucker on the temple of the glasses. Preferably, an I-shaped rod is slidably connected to the side wall of the sliding positioning block; by providing an I-shaped rod at the end of the sliding positioning block, when the sliding positioning block moves on the temple of the glasses to the contact position between the temple of the glasses and the AR glasses, the I-shaped rod is pushed towards the inside of the sliding positioning block, so that when the sliding positioning block contacts the AR glasses, there is a buffering effect.

[0012] Preferably, an oval magnet is slidably connected to the middle of the I-shaped rod; a spring is installed between the oval magnet and the I-shaped rod; elastic ropes are connected between the oval magnet and multiple L-shaped elastic rods and the sucker; by providing an oval magnet in the middle of the I-shaped rod, when the I-shaped rod moves towards the inside of the sliding positioning block, it will drive the oval magnet to shake, and then through the slight shaking of the oval magnet, the elastic ropes can drive the L-shaped elastic rods and the sucker to shake slightly, reducing the residual impurities on the surfaces of the sucker and the L-shaped elastic rods.

[0013] An AR glasses device, which is suitable for the above-mentioned AR connecting device; it includes a glasses body; a supporting leg is installed on the glasses body; a magnet sheet is fixedly connected to the end of the supporting leg close to the glasses body; by providing a magnet sheet at the end of the supporting leg, when the sliding positioning block approaches the magnet sheet, the elliptical magnet on the I-shaped rod will be attracted by the magnet sheet, causing the elliptical magnet to move significantly on the I-shaped rod, thereby increasing the pulling force of the elastic pull rope, further reducing the impurity residue on the surface of the suction cup and the L-shaped elastic rod, and increasing the surface cleanliness of the suction cup and the L-shaped elastic rod inside the sliding positioning block, so that after long-term use, there are fewer impurity residues on the surface of the suction cup and the L-shaped elastic rod, thereby increasing the service life.

[0014] Preferably, the surface of the supporting leg is coated with an oleophobic layer.

[0015] The beneficial effects of the present invention are as follows: 1. The AR connection device and AR glasses device described in the present invention, through the cooperation of the sliding positioning block and the elastic band, can prevent the glasses from slipping when used on the wearer's head, so that the heavier glasses themselves maintain a relatively stable posture on the wearer's head.

[0016] 2. The AR connection device and AR glasses device described in the present invention have L-shaped elastic rods on both sides of the suction cup. When the suction cup is attached to the glasses leg, the L-shaped elastic rod will first contact the glasses leg. Then, as the positioning plate continues to move, the L-shaped elastic rod will move on the glasses leg with the cleaning cotton. During the continuous movement, the cleaning cotton will wipe off part of the oil stains on the glasses leg, making it less likely that the suction cup will fall off when adsorbing the glasses leg. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] Figure 1 is a perspective view of the connecting device of the present invention; Figure 2 It is a structural diagram of the sliding positioning block in the present invention; Figure 3 yes Figure 2 A partial enlarged view of the middle A; Figure 4 yes Figure 2 A partial enlarged view of point B in the middle; Figure 5 This is a diagram of the state of AR glasses and connected devices in use; Figure 6 It is a side view of AR glasses; In the figure: 1. Sliding positioning block; 11. Elastic band; 12. Button; 13. Positioning plate; 14. Telescopic rod; 2. Suction cup; 3. Air cushion; 31. Air duct; 4. L-shaped elastic rod; 41. Cleaning cotton; 5. Arc-shaped elastic piece; 51. Eccentric wheel; 6. I-shaped rod; 61. Magnet sheet; 7. Oval magnet; 71. Elastic pull cord; 8. Glasses body; 81. Support leg. Specific embodiments

[0019] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0020] As Figures 1 to 4 shown, an AR connection device according to an embodiment of the present invention includes a sliding positioning block 1; there are a pair of the sliding positioning blocks 1; an elastic band 11 is connected in front of the sliding positioning blocks 1; a pair of buttons 12 are slidably connected inside the sliding positioning blocks 1; a pair of positioning plates 13 are arranged inside the sliding positioning blocks 1; a pair of telescopic rods 14 are hinged between the buttons 12 and the positioning plates 13; the middle parts of the telescopic rods 14 are rotatably connected to the inner side walls of the sliding positioning blocks 1; a spring is installed between the positioning plates 13 and the inner side walls of the sliding positioning blocks 1; during use, first put on the glasses on the head of the user, and then put the sliding positioning blocks 1 on the temple arms. During the process of putting the sliding positioning blocks 1 on the temple arms, by pressing the buttons 12 on the top of the sliding positioning blocks 1, the positioning plates 13 inside the sliding positioning blocks 1 are moved closer to the inner side walls of the sliding positioning blocks 1, so that the sliding positioning blocks 1 can move normally on the temple arms. When the sliding positioning blocks 1 correctly cover the elastic band 11 on the head of the wearer, the buttons 12 can be released, so that the positioning plates 13 move towards the middle of the sliding positioning blocks 1 under the action of the spring. At this time, the plurality of positioning plates 13 will press against the temple arms, causing the sliding positioning blocks 1 to stop on the temple arms. At this time, through the cooperation of the sliding positioning blocks 1 and the elastic band 11, when the glasses are used on the head of the wearer, it is not easy to slip, so that the relatively heavy glasses themselves can maintain a relatively stable posture on the head of the wearer.

[0021] Suction cups 2 are fixedly connected to the sides of the plurality of positioning plates 13 close to each other; there are multiple groups of the suction cups 2 on the positioning plates 13; by providing suction cups 2 between the positioning plates 13 and the temple arms for adsorption, when the positioning plates 13 are pressed against the temple arms by the spring, the suction cups 2 can adsorb the positioning plates 13, making the positions of the positioning plates 13 on the temple arms more stable and less likely to shift, and making the fixation of the elastic band 11 on the head of the wearer more stable.

[0022] On one side of the positioning plate 13 close to the inner side wall of the sliding positioning block 1, a plurality of air cushions 3 are fixedly connected; a gas guide pipe 31 is communicated between the air cushion 3 and the suction cup 2; by providing an air cushion 3 on the positioning plate 13 and communicating the air cushion 3 and the suction cup 2 through a gas guide pipe 31, when the positioning plate 13 moves towards the inner side wall of the sliding positioning block 1, the air cushion 3 can be squeezed, so that the gas inside the air cushion 3 is ejected from the gas guide pipe 31 to blow and wash the inner side wall of the suction cup 2, reducing the impurities on the inner side wall of the suction cup 2, and enabling the adsorption force of the suction cup 2 to be maintained after long-term use. At the same time, when the positioning plate 13 moves towards the spectacle leg, the suction cup 2 will first contact the spectacle leg. At this time, the air cushion 3 will expand due to its own elasticity, and then the gas between the suction cup 2 and the spectacle leg will be pumped out through the gas guide pipe 31, increasing the adsorption force of the suction cup 2 on the spectacle leg, increasing the control force of the positioning plate 13 on the spectacle leg, and reducing the problem that the sliding positioning block 1 may slide on the spectacle leg.

[0023] On both sides of the suction cup 2, a pair of L-shaped elastic rods 4 are provided; the ends of each pair of L-shaped elastic rods 4 are close to each other; on the side of the L-shaped elastic rod 4 away from the positioning plate 13, a plurality of cleaning cotton 41 are fixedly connected; by providing L-shaped elastic rods 4 on both sides of the suction cup 2, when the suction cup 2 fits onto the spectacle leg, the L-shaped elastic rods 4 will first contact the spectacle leg, and then during the continuous movement of the positioning plate 13, the L-shaped elastic rods 4 will drive the cleaning cotton 41 to move on the spectacle leg. During the continuous movement, the cleaning cotton 41 will wipe off part of the oil stains on the spectacle leg, making it difficult for the suction cup 2 to fall off when adsorbing the spectacle leg.

[0024] An arc-shaped elastic piece 5 is rotatably connected to the middle of the L-shaped elastic rod 4; one end of the arc-shaped elastic piece 5 is fixedly connected to the middle of the bottom of the L-shaped elastic rod 4, and the other end is rotatably connected to an eccentric wheel 51; a spring piece is connected between the middle of the arc-shaped elastic piece 5 and the middle of the L-shaped elastic rod 4; by providing an arc-shaped elastic piece 5 in the middle of the L-shaped elastic rod 4, during the process of the positioning plate 13 moving towards the spectacle leg, the end of the arc-shaped elastic piece 5 will contact the side wall of the spectacle leg, and then the other end of the arc-shaped elastic piece 5 will press the L-shaped elastic rod 4 downward, making the pressing force of the cleaning cotton 41 on the spectacle leg stronger, enabling the cleaning cotton 41 to remove more oil stains and dust on the spectacle leg, and increasing the stability of the suction cup 2 on the spectacle leg. An I-shaped rod 6 is slidably connected to the side wall of the sliding positioning block 1; by providing an I-shaped rod 6 at the end of the sliding positioning block 1, when the sliding positioning block 1 moves on the spectacle leg to the contact position between the spectacle leg and the AR glasses, the I-shaped rod 6 can be pushed towards the inside of the sliding positioning block 1, so that when the sliding positioning block 1 contacts the AR glasses, there is a buffering effect.

[0025] An oval magnet 7 is slidably connected to the middle of the I-shaped rod 6; a spring is installed between the oval magnet 7 and the I-shaped rod 6; an elastic pull rope 7 is connected between the oval magnet 7 and a plurality of L-shaped elastic rods 4 and suction cups 2; by providing the oval magnet 7 in the middle of the I-shaped rod 6, when the I-shaped rod 6 moves into the sliding positioning block 1, it will drive the oval magnet 7 to shake, and then through the slight shaking of the oval magnet 7, the elastic pull rope 71 can drive the L-shaped elastic rod 4 and the suction cup 2 to shake slightly, reducing the residual impurities on the surfaces of the suction cup 2 and the L-shaped elastic rod 4.

[0026] As Figures 5 to 6 shown, an AR glasses device is proposed; the AR glasses device is applicable to the above-mentioned AR connection device; it includes a glasses body 8; a support leg 81 is installed on the glasses body 8; a magnet sheet 61 is fixedly connected to the end of the support leg 81 close to the glasses body 8; by providing the magnet sheet 61 at the end of the support leg 81, when the sliding positioning block 1 approaches the magnet sheet 61, the oval magnet 7 on the I-shaped rod 6 will be adsorbed by the magnet sheet 61, causing the oval magnet 7 to move significantly on the I-shaped rod 6, increasing the pulling force of the elastic pull rope 71, further reducing the residual impurities on the surfaces of the suction cup 2 and the L-shaped elastic rod 4, increasing the surface cleanliness of the suction cup 2 and the L-shaped elastic rod 4 inside the sliding positioning block 1, so that after long-term use of the suction cup 2 and the L-shaped elastic rod 4, there is less residual impurities on their surfaces, increasing the service life.

[0027] The surface of the support leg 81 is provided with an oleophobic coating.

[0028] During operation, when in use, first put on the glasses on the user's head, and then put the sliding positioning block 1 on the temple. During the process of putting the sliding positioning block 1 on the temple, by pressing the button 12 on the top of the sliding positioning block 1, the positioning plate 13 inside the sliding positioning block 1 moves closer to the inner side wall of the sliding positioning block 1, so that the sliding positioning block 1 can move normally on the temple. When the sliding positioning block 1 correctly covers the elastic band 11 on the wearer's head, the button 12 can be released, and the positioning plate 13 moves towards the middle of the sliding positioning block 1 under the action of the spring. At this time, a plurality of positioning plates 13 will squeeze the temple, causing the sliding positioning block 1 to stop on the temple. At this time, through the cooperation of the sliding positioning block 1 and the elastic band 11, when the glasses are used on the wearer's head, it is not easy to slip, and the relatively heavy glasses themselves can maintain a stable posture on the wearer's head.

[0029] Adsorption is carried out by providing a suction cup 2 between the positioning plate 13 and the temple. When the positioning plate 13 is pressed against the temple by a spring, the suction cup 2 adsorbs the positioning plate 13, making the position of the positioning plate 13 on the temple more stable and less likely to shift, and making the fixation of the elastic band 11 on the wearer's head more stable.

[0030] By providing an air cushion 3 on the positioning plate 13 and connecting the air cushion 3 and the suction cup 2 with an air duct 31, when the positioning plate 13 moves towards the inner wall of the sliding positioning block 1, the air cushion 3 can be squeezed, so that the gas inside the air cushion 3 is ejected from the air duct 31 to blow and wash the inner wall of the suction cup 2, reducing the impurities on the inner wall of the suction cup 2. After long-term use, the adsorption force of the suction cup 2 can still be maintained. At the same time, when the positioning plate 13 moves towards the temple, the suction cup 2 will first contact the temple. At this time, the air cushion 3 will expand due to its own elasticity, and then the gas between the suction cup 2 and the temple will be pumped out through the air duct 31, increasing the adsorption force of the suction cup 2 on the temple and increasing the control force of the positioning plate 13 on the temple, reducing the problem that the sliding positioning block 1 may slide on the temple.

[0031] By providing L-shaped elastic rods 4 on both sides of the suction cup 2, when the suction cup 2 fits onto the temple, the L-shaped elastic rods 4 will first contact the temple. Then, during the continuous movement of the positioning plate 13, the L-shaped elastic rods 4 will drive the cleaning cotton 41 to move on the temple. During the continuous movement, the cleaning cotton 41 will wipe off some of the oil stains on the temple, making it less likely for the suction cup 2 to fall off when adsorbing the temple. By providing an arc-shaped elastic piece 5 in the middle of the L-shaped elastic rod 4, during the movement of the positioning plate 13 towards the temple, the end of the arc-shaped elastic piece 5 will contact the side wall of the temple, and then the other end of the arc-shaped elastic piece 5 will press the L-shaped elastic rod 4 downward, making the pressing force of the cleaning cotton 41 on the temple stronger, enabling the cleaning cotton 41 to remove more oil stains and dust on the temple, and increasing the stability of the suction cup 2 on the temple.

[0032] By providing an I-shaped rod 6 at the end of the sliding positioning block 1, when the sliding positioning block 1 moves on the temple to the contact position between the temple and the AR glasses, the I-shaped rod 6 can be pushed towards the inside of the sliding positioning block 1, so that when the sliding positioning block 1 contacts the AR glasses, there is a buffering effect. By providing an oval magnet 7 in the middle of the I-shaped rod 6, when the I-shaped rod 6 moves towards the inside of the sliding positioning block 1, it will drive the oval magnet 7 to shake. Then, through the slight shaking of the oval magnet 7, the elastic cord 71 can drive the L-shaped elastic rod 4 and the suction cup 2 to shake slightly, reducing the residual impurities on the surfaces of the suction cup 2 and the L-shaped elastic rod 4.

[0033] By providing a magnet sheet 61 at the end of the support leg 81, when the sliding positioning block 1 approaches the magnet sheet 61, the oval magnet 7 on the I-shaped rod 6 will be adsorbed by the magnet sheet 61, causing the oval magnet 7 to move significantly on the I-shaped rod 6, increasing the pulling force of the elastic pull rope 71, further reducing the residual impurities on the surfaces of the suction cup 2 and the L-shaped elastic rod 4, increasing the surface cleanliness of the suction cup 2 and the L-shaped elastic rod 4 inside the sliding positioning block 1, so that after long-term use of the suction cup 2 and the L-shaped elastic rod 4, there are fewer residual impurities on their surfaces, and the service life is increased.

[0034] The above front, back, left, right, up, and down are all based on the Figure 1 description in the accompanying drawings of the specification. Taking the perspective of the observer as the standard, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0035] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the protection scope of the present invention.

[0036] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. An AR connection device for AR glasses, characterized in that: It includes sliding positioning blocks (1); there are a pair of the sliding positioning blocks (1); an elastic band (11) is connected before the sliding positioning blocks (1); a pair of buttons (12) are slidably connected inside the sliding positioning blocks (1); a pair of positioning plates (13) are arranged inside the sliding positioning blocks (1); a pair of telescopic rods (14) are hinged between the buttons (12) and the positioning plates (13); the middle of the telescopic rods (14) is rotatably connected to the inner side wall of the sliding positioning blocks (1); a spring is installed between the positioning plates (13) and the inner side wall of the sliding positioning blocks (1). The AR glasses include two temple arms, and each of the sliding positioning blocks (1) is sleeved on a corresponding temple arm. Pressing and releasing the buttons (12) drives the corresponding pair of positioning plates (13) to loosen and squeeze the corresponding temple arm. Suction cups (2) are fixedly connected to the side of the plurality of positioning plates (13) close to each other; there are multiple groups of the suction cups (2) on the positioning plates (13). A pair of L-shaped elastic rods (4) are arranged on both sides of the suction cup (2); the ends of each pair of the L-shaped elastic rods (4) are close to each other; multiple groups of cleaning cotton (41) are fixedly connected to the side of the L-shaped elastic rods (4) far from the positioning plates (13).

2. The AR connection device according to claim 1, wherein: An arc-shaped elastic piece (5) is rotatably connected to the middle of the L-shaped elastic rod (4); one end of the arc-shaped elastic piece (5) is fixedly connected to the middle of the bottom of the L-shaped elastic rod (4), and the other end is rotatably connected to an eccentric wheel (51); a elastic piece is connected between the middle of the arc-shaped elastic piece (5) and the middle of the L-shaped elastic rod (4).

3. The AR connection device according to claim 1, wherein: An I-shaped rod (6) is slidably connected to the side wall of the sliding positioning block (1).

4. An AR connection device according to claim 3, characterized in that: An oval magnet (7) is slidably connected to the middle of the I-shaped rod (6); a spring is installed between the oval magnet (7) and the I-shaped rod (6); an elastic pull rope (71) is connected between the oval magnet (7) and the multiple L-shaped elastic rods (4) and the suction cups (2).

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