An AR connection device and an AR glasses device

Abstract

The present invention belongs to the technical field of AR glasses, and specifically relates to an AR connection device and an AR glasses device, including 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 arranged 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; a spring is installed between the positioning plates and the inner side wall of the sliding positioning blocks; through the cooperation of the sliding positioning blocks and the elastic band, when the glasses are used on the wearer's head, it is not easy to slip, so that the relatively heavy glasses themselves can maintain a relatively stable posture on the wearer's head.

Description

Technical Field

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

[0002] An AR glasses is a device that can display images in front of the wearer's eyes, and at the same time, the AR glasses can record the scenes near the wearer.

[0003] A Chinese patent with the publication number CN111240023A discloses an AR connection device, an AR glasses device and an AR glasses assembly method, including a limiting crossbeam for restricting the position of a waveguide plate, a waveguide plate bracket arranged below the limiting crossbeam for mounting the waveguide plate, and optical engine brackets respectively arranged on the left and right sides of the limiting crossbeam for mounting an optical engine. The waveguide plate bracket is connected to the optical engine bracket. The waveguide plate bracket is provided with a light outlet for the virtual light generated by the optical engine to propagate to the waveguide plate. Both the limiting crossbeam and the optical engine bracket are provided with mounting holes for assembling with an exterior member.

[0004] When the existing AR glasses are in use, they are worn in a way similar to myopia glasses, that is, the temple arms are placed on the wearer's ears for support. During long-term use and observation, it is found that due to the relatively large weight of the AR glasses themselves, there will be a problem of loosening during the wearing process. At the same time, because the head circumferences of different wearers are different, the temple arms of fixed size are not easy to be worn by each wearer.

[0005] Therefore, 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 and solve at least one technical problem proposed in the background art.

[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 in front of the sliding positioning blocks; a pair of buttons are slidably connected inside the sliding positioning blocks; a pair of positioning plates are arranged 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 bars. During the process of putting the sliding positioning blocks on the temple bars, 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 bars. 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 bars, causing the sliding positioning blocks to stop on the temple bars. 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 heavier glasses themselves can maintain a relatively stable posture on the head of the wearer.

[0008] Preferably, suction cups are fixedly connected to the side of multiple said positioning plates close to each other; there are multiple groups of the suction cups on the positioning plates; by providing suction cups between the positioning plates and the temple bars for adsorption, when the positioning plates are pressed against the temple bars by the springs, the suction cups can adsorb the positioning plates, making the position of the positioning plates on the temple bars 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 guide tube is connected between the air cushions and the suction cups; by providing air cushions on the positioning plates and connecting them with an air guide tube 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 guide tube 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 bars, the suction cups will first contact the temple bars. At this time, the air cushions will expand due to their own elasticity, and then the gas between the suction cups and the temple bars will be pumped out through the air guide tube, increasing the adsorption force of the suction cups on the temple bars, increasing the control force of the positioning plates on the temple bars, and reducing the problem that the sliding positioning blocks may slide on the temple bars.

[0010] Preferably, a pair of L-shaped elastic rods are provided on both sides of the suction cup; the ends of each pair of L-shaped elastic rods are close to each other; a plurality of groups of cleaning cotton are fixedly connected to the side of the L-shaped elastic rod away from the positioning plate; by providing L-shaped elastic rods on both sides of the suction cup, when the suction cup fits onto the temple, the L-shaped elastic rods will first contact the temple, 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. During the continuous movement, the cleaning cotton will wipe off part of the oil stains on the temple, so that when the suction cup adsorbs the temple, 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, the end of the arc-shaped elastic piece will contact the side wall of the temple, 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 is stronger, so that the cleaning cotton can remove more oil stains and dust on the temple, increasing the stability of the suction cup on the temple.

[0012] 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 to the contact position between the temple 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.

[0013] 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; an elastic cord is connected between the oval magnet and a plurality of L-shaped elastic rods and the suction cup; 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 cord can drive the L-shaped elastic rods and the suction cup to shake slightly, reducing the residual impurities on the surfaces of the suction cup and the L-shaped elastic rods.

[0014] 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 arranging the 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, so that the elliptical magnet on the I-shaped rod will move significantly, so that the pulling force of the elastic pull rope is increased, so that the impurity residue on the surface of the suction cup and the L-shaped elastic rod is further reduced, and the surface cleanliness of the suction cup and the L-shaped elastic rod inside the sliding positioning block is increased, so that after long-term use, the suction cup and the L-shaped elastic rod have less impurity residue on their surfaces, thereby increasing their service life.

[0015] Preferably, the surface of the supporting leg is coated with an oleophobic layer.

[0016] The beneficial effects of the present invention are as follows:

[0017] 1. The AR connection device and AR glasses device described in the present invention can prevent the glasses from slipping off when used on the wearer's head through the cooperation of the sliding positioning block and the elastic band, so that the heavier glasses themselves can maintain a relatively stable posture on the wearer's head.

[0018] 2. The AR connecting 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, during the continuous movement of the positioning plate, 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, so that the suction cup is not likely to fall off when adsorbing the glasses leg. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below in conjunction with the accompanying drawings.

[0020] Figure 1 is a perspective view of the connection device of the present invention;

[0021] Figure 2 It is a structural schematic diagram of the sliding positioning block in the present invention;

[0022] Figure 3 yes Figure 2 A partial enlarged view of the middle part;

[0023] Figure 4 yes Figure 2 A partial enlarged view of point B in the middle;

[0024] Figure 5 This is a diagram of the state of AR glasses and connected devices in use;

[0025] Figure 6 It is a side view of an AR glasses;

[0026] 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 sheet; 51. Eccentric wheel; 6. I-shaped rod; 61. Magnet sheet; 7. Oval magnet; 71. Elastic pull cord; 8. Glasses body; 81. Support leg. Detailed implementation manners

[0027] 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 implementation manners.

[0028] As Figures 1 to 4 shown, an AR connection device according to an embodiment of the present invention includes a sliding positioning block 1; a pair of the sliding positioning blocks 1 are provided; 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 provided 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; when in use, first put the glasses on the head of the user, and then put the sliding positioning blocks 1 on the temple bars. During the process of putting the sliding positioning blocks 1 on the temple bars, 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 bars. 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, multiple positioning plates 13 will press against the temple bars, causing the sliding positioning blocks 1 to stop on the temple bars. 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.

[0029] Suction cups 2 are fixedly connected to the sides of the multiple positioning plates 13 close to each other; multiple groups of the suction cups 2 are provided on the positioning plates 13; by providing the suction cups 2 between the positioning plates 13 and the temple bars for adsorption, when the positioning plates 13 are pressed against the temple bars by the spring, the suction cups 2 adsorb the positioning plates 13, making the positions of the positioning plates 13 on the temple bars more stable and less likely to be displaced, and making the fixation of the elastic band 11 on the head of the wearer more stable.

[0030] On one side of the positioning plate 13 close to the inner 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 with the suction cup 2 through the gas guide pipe 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 gas guide pipe 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, 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 frame leg, the suction cup 2 will first contact the spectacle frame 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 frame leg will be pumped out through the gas guide pipe 31, increasing the adsorption force of the suction cup 2 on the spectacle frame leg, increasing the control force of the positioning plate 13 on the spectacle frame leg, and reducing the problem that the sliding positioning block 1 may slide on the spectacle frame leg.

[0031] 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 far 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 frame leg, the L-shaped elastic rods 4 will first contact the spectacle frame 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 frame leg. During the continuous movement, the cleaning cotton 41 will wipe off part of the oil stains on the spectacle frame leg, making it difficult for the suction cup 2 to fall off when adsorbing the spectacle frame leg.

[0032] 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 frame leg, the end of the arc-shaped elastic piece 5 will contact the side wall of the spectacle frame 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 frame leg stronger, enabling the cleaning cotton 41 to remove more oil stains and dust on the spectacle frame leg, and increasing the stability of the suction cup 2 on the spectacle frame leg.

[0033] A T-shaped rod 6 is slidably connected to the side wall of the sliding positioning block 1; by providing a T-shaped rod 6 at the end of the sliding positioning block 1, when the sliding positioning block 1 moves on the spectacle frame leg to the contact position between the spectacle frame leg and the AR glasses, the T-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.

[0034] 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; elastic ropes 71 are 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 ropes 71 can drive the L-shaped elastic rods 4 and the suction cups 2 to shake slightly, reducing the residual impurities on the surfaces of the suction cups 2 and the L-shaped elastic rods 4.

[0035] 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 ropes 71, further reducing the residual impurities on the surfaces of the suction cups 2 and the L-shaped elastic rods 4, increasing the surface cleanliness of the suction cups 2 and the L-shaped elastic rods 4 inside the sliding positioning block 1, so that after long-term use of the suction cups 2 and the L-shaped elastic rods 4, there is less residual impurities on their surfaces, increasing the service life.

[0036] The surface of the support leg 81 is provided with an oleophobic coating.

[0037] During operation, when in use, first put on the glasses on the head of the user, 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 approaches the inner 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 head of the wearer, 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 head of the wearer, it is not easy to slip, making the heavier glasses itself maintain a relatively stable posture on the head of the wearer.

[0038] By providing a suction cup 2 between the positioning plate 13 and the temple of the glasses for adsorption, when the positioning plate 13 is pressed onto the temple of the glasses by the spring, the suction cup 2 adsorbs the positioning plate 13, so that the position of the positioning plate 13 on the temple of the glasses is more stable and less likely to shift, and the elastic band 11 is more stably fixed to the wearer's head.

[0039] By providing an air cushion 3 on the positioning plate 13 and providing an air duct 31 between the air cushion 3 and the suction cup 2 for communication, when the positioning plate 13 moves toward the inner wall of the sliding positioning block 1, the air cushion 3 is squeezed, so that the gas inside the air cushion 3 is ejected from the air duct 31 to purge the inner wall of the suction cup 2, thereby reducing impurities on the inner wall of the suction cup 2, so that the adsorption force of the suction cup 2 can be maintained after long-term use. At the same time, when the positioning plate 13 moves toward the temple of the glasses, the suction cup 2 will first contact the temple of the glasses. 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 of the glasses will be extracted through the air duct 31, so that the adsorption force of the suction cup 2 on the temple of the glasses is increased, and the control force of the positioning plate 13 on the temple of the glasses is increased, thereby reducing the problem that the sliding positioning block 1 may slip on the temple of the glasses.

[0040] By providing L-shaped elastic rods 4 on both sides of the suction cup 2, when the suction cup 2 is attached to the temples of the glasses, the L-shaped elastic rods 4 will first contact the temples of the glasses, and then during the continuous movement of the positioning plate 13, the L-shaped elastic rods 4 will move on the temples of the glasses with the cleaning cotton 41. During the continuous movement, the cleaning cotton 41 will wipe off part of the oil stains on the temples of the glasses, so that the suction cup 2 is not prone to falling off when it is adsorbed on the temples of the glasses; by providing an arc-shaped elastic sheet 5 in the middle part of the L-shaped elastic rod 4, the end of the arc-shaped elastic sheet 5 will contact the side wall of the temples of the glasses when the positioning plate 13 moves toward the temples of the glasses, and then the other end of the arc-shaped elastic sheet 5 will press the L-shaped elastic rod 4 downward, so that the pressing force of the cleaning cotton 41 on the temples of the glasses is stronger, so that the cleaning cotton 41 can remove more oil stains and dust on the temples of the glasses, thereby increasing the stability of the suction cup 2 on the temples of the glasses.

[0041] 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 glasses leg to the contact position between the glasses leg and the AR glasses, the I-shaped rod 6 can be pushed into 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 elliptical 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 elliptical magnet 7 to shake, and then through the slight shaking of the elliptical magnet 7, the elastic pull rope 71 can drive the L-shaped elastic rod 4 and the suction cup 2 to shake slightly, so that the impurities remaining on the surfaces of the suction cup 2 and the L-shaped elastic rod 4 are reduced.

[0042] 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 cord 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.

[0043] 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.

[0044] 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.

[0045] 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 description 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 pieces, and each of the sliding positioning blocks (1) is sleeved on a corresponding temple piece. Pressing and releasing the buttons (12) drives the corresponding pair of positioning plates (13) to loosen and squeeze the corresponding temple piece.

2. The AR connection device according to claim 1, wherein: Suction cups (2) are fixedly connected to the sides of the plurality of positioning plates (13) that are close to each other; there are multiple groups of the suction cups (2) on the positioning plates (13).

3. The AR connection device according to claim 2, characterized in that: Multiple groups of air cushions (3) are fixedly connected to the side of the positioning plates (13) close to the inner side wall of the sliding positioning blocks (1); an air duct (31) is communicated between the air cushions (3) and the suction cups (2).

4. An AR connection device according to claim 3, characterized in that: A pair of L-shaped elastic rods (4) are arranged on both sides of the suction cups (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).

5. An AR connection device according to claim 4, characterized in that: An arc-shaped elastic piece (5) is rotatably connected to the middle of the L-shaped elastic rods (4); one end of the arc-shaped elastic piece (5) is fixedly connected to the middle of the bottom of the L-shaped elastic rods (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 rods (4).

6. The AR connection device according to claim 5, characterized in that: An I-shaped rod (6) is slidably connected to the side wall of the sliding positioning blocks (1).

7. An AR connection device according to claim 6, 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 cord (71) is connected between the oval magnet (7) and the multiple L-shaped elastic rods (4) and the suction cups (2).

Images