CN109001908A - A kind of headset equipment and its system based on virtual reality - Google Patents

Abstract

The invention discloses a kind of headset equipment and its system based on virtual reality, including main body and fixed block, recessing groove is equipped in the middle part of the downside of main body, placing groove there are two being set on the upper side of main body, the present invention passes through the cooperation between inflatable ball and blow vent, realize the inside that air can be endlessly pumped into air bag by pressing inflatable ball, so as to so that air bag can be closely bonded from the face of different users, to make user more comfortable, pass through the cooperation between bull stick and partition, connecting rope can be wrapped in the length for changing bandage on bull stick by realizing rotation bull stick, to make the present apparatus be suitable for different crowds, the present apparatus can be inserted directly into matched eyeglass in the inside of placing groove, user can clearly watch in the case where not wearing spectacles, or pass through controllable register Position the wearing spectacles the case where using the present invention, meet the needs of same equipment different users.

Description

A head-mounted device and system based on virtual reality

technical field

The invention relates to the technical field of VR equipment, in particular to a virtual reality-based head-mounted equipment and a system thereof.

Background technique

Virtual reality head-mounted devices are generally called VR glasses, which use head-mounted displays to close people's vision and hearing to the outside world, and guide users to feel like they are in a virtual environment. Head-mounted displays are The earliest virtual reality display, its display principle is that the left and right eye screens display the images of the left and right eyes respectively. After the human eyes obtain this information with differences, they will generate a three-dimensional effect in the mind. As the name suggests, the VR glasses require users to wear them on the eyes. , but now many myopic people are wearing myopia glasses. If the VR glasses are worn outside the myopia glasses, the VR glasses will squeeze the myopia glasses and make the user uncomfortable. If the myopia glasses are taken off and the VR glasses are worn It will lead to unsatisfactory visual effects, and at the same time, it is difficult for current VR glasses to fit the faces of different groups of people, resulting in discomfort for users. To solve the above problems, the present invention provides a virtual reality-based head-mounted device and its system.

Contents of the invention

The purpose of the present invention is to provide a head-mounted device based on virtual reality and its system, so as to solve the problems raised in the above-mentioned background technology.

In order to achieve the above object, the present invention provides the following technical solutions: a head-mounted device based on virtual reality and its system, including a main body and a fixed block. There are two placement slots on the side, an inflatable block is fixedly connected to one side of the main body, the inflatable block is provided with an inner cavity, and the inner cavity is provided with a one-way air intake structure, and the end of the inflatable block is close to the through hole An inflatable ball is fixedly connected to the end face and around the through hole, the inflatable ball is provided with a vent, one side of the side wall of the inner cavity is fixedly connected to a vertical rod, and the inside of the vertical rod is provided with a sliding hole. The sliding hole communicates with the inner cavity, and communicates with the outside world through the vertical bar and the inflatable block. The inside of the sliding hole is engaged with a screw, and the lower end of the screw is rotatably connected with a rubber plug. The upper end of the screw passes through the top of the sliding hole Extending to the outside of the inflatable block and fixedly connected with a handle, the inside of the main body is provided with a ventilation pipe, one end of the ventilation pipe runs through the side wall of the main body and communicates with the inner cavity, and the other end of the ventilation pipe runs through one side of the main body The wall communicates with the airbag, and the airbag is fixedly connected to one side of the main body;

Both ends and the upper side of the main body are fixedly connected with straps, and the ends of the three straps away from the main body are fixedly connected with connecting ropes, and the ends of the connecting ropes away from the corresponding straps respectively pass through the sides of the fixed block. The wall is wound on the rotating rod, and the rotating rod is rotatably connected to the side wall of the cavity, and the end of the rotating rod away from the main body passes through the other side wall of the cavity and is fixedly connected with a screw disk.

Preferably, the one-way air intake structure includes a fixed shaft arranged horizontally, one end of the fixed shaft is fixedly connected to the side wall at one end of the inner cavity, and the other end of the fixed shaft extends to the side wall at the other end of the inner cavity In the provided through hole, a gasket is fixedly connected to the end surface of the fixed shaft located inside the through hole, and the outer side of the fixed shaft is sleeved with a first spring, and one end of the first spring is fixedly connected to the inner cavity. On the side wall at one end, the other end of the first spring is fixedly connected to the rubber pad, and the rubber pad is slidably connected to the fixed shaft.

Preferably, the one-way air intake structure includes a fixed shaft arranged vertically, the upper end of the fixed shaft is slidably connected with the sliding cavity provided in the inner cavity, and the lower end is fixedly connected with a rubber pad and connected with the penetrating hole provided at the bottom of the inflatable block. corresponding to the hole.

Preferably, a dark groove and a chute are provided in the main body and above the relief groove, the inside of the chute is slidably connected with a first sliding rod, and the dark groove slides on the side wall away from the chute A second slide bar is connected, and one end of the first slide bar and the second slide bar away from the bottom of the dark tank is fixedly connected with a baffle plate, and the second slide bar is fixedly connected to a side surface inside the dark tank. There are two teeth, the groove wall of the dark groove is rotatably connected with a gear, and the gear is meshed with the teeth, and the side of the gear is fixedly connected with a rotating shaft, and the end of the rotating shaft away from the gear runs through the dark groove and extends to the main body. Externally, the shaft is provided with a groove on one end surface outside the main body, the groove bottom of the groove is connected with a square rod through the second spring, and the end of the square rod far away from the second spring is fixedly connected with a turntable. A side of the turntable close to the main body is fixedly connected with a plurality of first locking balls, and the plurality of first locking balls are arranged in a circular shape around the rotating shaft. Matched with the first bayonet.

Preferably, a plurality of dark cavities are arranged inside the turntable, and the plurality of dark cavities are arranged in a circle around the rotating rod, and the side wall of each dark cavity away from the fixed block is connected with a second spring. The second clamping balls, one end of each second clamping ball away from the corresponding second spring passes through the side wall of the dark cavity and is respectively movably clamped with a plurality of second bayonet sockets provided on the fixed block.

Preferably, two partitions are fixedly sleeved outside one end of the rotating rod located inside the cavity.

Preferably, earphones are fixedly connected to both sides of the fixed block and located below the connecting rope.

Compared with the prior art, the beneficial effect of the present invention is: the present invention realizes that pressing the inflatable ball can continuously pump air into the inside of the airbag through the cooperation between the inflatable ball and the air vent, so that the airbag can be different from the airbag. The user's face can be closely fitted, so that the user is more comfortable. Through the cooperation between the rotating rod and the partition, the rotating rod can be turned to wrap the connecting rope on the rotating rod to change the strap length, so that the device is suitable for different groups of people. The device can be directly inserted into the matching lens inside the placement slot, allowing the user to watch clearly without wearing glasses, thereby avoiding the extrusion of the device The glasses make the user feel uncomfortable. In addition, the present invention realizes the rotation of the turntable through the cooperation of the turntable and the rotating shaft. The turntable will drive the gear to rotate through the rotating shaft. The plate slides, and then achieves the purpose of giving way to the glasses, avoiding the glasses from being squeezed into the user, providing a good visual effect for the user wearing the glasses, and when not wearing the glasses, the dark groove can be closed by the baffle to prevent the position of the two eyes The light interferes and reduces the experience effect.

Description of drawings

Fig. 1 is the structural representation of embodiment 1 of the present invention;

Fig. 2 is a cross-sectional view of Embodiment 1 of the present invention;

Fig. 3 is the enlarged view of A place of Fig. 2 of the present invention;

4 is a schematic diagram of the internal structure of the cavity of the present invention;

Fig. 5 is the longitudinal sectional view of embodiment 1 of the present invention;

Fig. 6 is a schematic diagram of the connection between the second stuck ball and the second bayonet socket of the present invention;

Fig. 7 is a schematic diagram of the internal structure of Embodiment 1 of the inner cavity of the present invention;

Figure 8 is a schematic structural view of Embodiment 2 of the present invention;

Fig. 9 is an internal cross-sectional view of the dark tank of Embodiment 2 of the present invention;

Fig. 10 is the longitudinal sectional view of dark groove place of the present invention;

Fig. 11 is a sectional view of the rotating shaft of the present invention;

Fig. 12 is a cross-sectional view of an inflatable block according to Embodiment 3 of the present invention.

In the figure: 1. Main body, 2. Inflatable block, 3. Inner cavity, 4. Vertical rod, 5. Screw rod, 6. Sliding hole, 7. Sliding chamber, 8. Rubber plug, 9. Fixed shaft, 10. First Spring, 11, rubber pad, 12, spacer, 13, through hole, 14, inflatable ball, 15, air vent, 16, strap, 17, connecting rope, 18, fixed block, 19, cavity, 20, turn Rod, 21, clapboard, 22, twist plate, 23, dark cavity, 24, second spring, 25, second clamping ball, 26, second bayonet socket, 27, earphone, 28, give way slot, 29, ventilation Pipeline, 30, air bag, 31, placement groove, 32, wire, 33, dark groove, 34, chute, 35, first slide bar, 36, second slide bar, 37, baffle plate, 38, teeth, 39 , gear, 40, rotating shaft, 41, groove, 42, second spring, 43, square rod, 44, rotating disk, 45, the first clamping ball, 46, the first bayonet.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Please refer to Figure 1-12,

Embodiment 1, the present invention provides a technical solution: a head-mounted device based on virtual reality and its system, including a main body 1 and a fixed block 18, and the middle part of the lower side of the main body 1 is provided with a relief groove 28, allowing The slot 28 can give way to the nose, thereby making the user more comfortable. The upper side of the main body 1 is provided with two placement slots 31, and the placement slots 31 are equipped with two slot covers, which can cover the placement slots 31 To prevent dust from entering, matching lenses can be placed inside the placement groove 31, so that users can watch clearly without wearing glasses. One side of the main body 1 is fixedly connected with an inflatable block 2. The interior of the inflatable block 2 is provided with an inner chamber 3, and the interior of the inner chamber 3 is provided with a fixed shaft 9 arranged horizontally, one end of the fixed shaft 9 is fixedly connected to one end side wall of the inner chamber 3, and the fixed shaft 9 The other end extends into the through hole 13 provided on the side wall of the other end of the inner chamber 3, and the fixed shaft 9 is fixedly connected with a gasket 12 on the end surface of the inner end of the through hole 13, and the gasket 12 can prevent air from passing through the rubber. The gap between the pad 11 and the fixed shaft 9 leaks out, and the outer side of the fixed shaft 9 is sleeved with a first spring 10, one end of the first spring 10 is fixedly connected to one end side wall of the inner chamber 3, and the first spring 10 The other end of the rubber pad 11 is fixedly connected to the rubber pad 11, and the rubber pad 11 is slidably connected to the fixed shaft 9. The first spring 10 can keep the rubber pad 11 in close contact with the side wall of the end of the inner cavity 3 close to the through hole 13. Thereby the rubber pad 11 blocks the through hole 13 to prevent air leakage, and the inflatable block 2 is fixedly connected with an inflatable ball 14 on one end surface near the through hole 13 and around the through hole 13, and the inflatable ball 14 is provided with a ventilator. Open the mouth 15, block the vent 15 with your hands and then press the inflatable ball 14 to make the air in the inflatable ball 14 flush the rubber pad 11 away, then pass through the inner cavity 3 and then through the vent pipe 29 and finally enter the inside of the air bag 30 after the first spring Under the action of 10, the rubber pad 11 blocks the through hole 13 to prevent air leakage, and then loosens the inflatable ball 14. The inflatable ball 14 itself is made of elastic material, and the external air will enter the inflatable ball 14 through the vent 15 during the recovery deformation process. The inside of the inflatable ball 14 is inflated again, and then the above steps are repeated to inflate the airbag 30 so that it closely fits the user's face, which can make the user more comfortable. The inner cavity 3 is far away from the spacer 12. One side of the side wall at one end is fixedly connected with a vertical rod 4, and the inside of the vertical rod 4 is provided with a sliding hole 6, and the sliding hole 6 communicates with the inner cavity 3, and passes through the vertical rod 4 and the inflatable block 2 to communicate with the outside world, , the inside of the sliding hole 6 is meshed with a screw 5, the lower end of the screw 5 is rotatably connected with a rubber plug 8, the upper end of the screw 5 extends to the outside of the inflatable block 2 through the top of the sliding hole 6 and is fixedly connected with a handle, Turn the screw 5 to make the rubber plug 8 slide up and down inside the sliding hole 6, thereby controlling whether the rubber plug 8 blocks the sliding hole 6. When it is necessary to release the air inside the airbag 30, you only need to turn the screw 5 so that the rubber plug 8 is not in place. Block the sliding hole 6, at this moment the air inside the airbag 30 will enter through the air duct 29 The inside of the inner cavity 3 is then discharged through the sliding hole 6. When the rubber plug 8 blocks the sliding hole 6, the inner cavity 3 will always be kept sealed, thereby preventing air bag 30 from leaking. The inside of the main body 1 is provided with a ventilation duct 29. One end of the air duct 29 runs through one side wall of the main body 1 and communicates with the inner cavity 3, and the other end of the air duct 29 runs through one side wall of the main body 1 and communicates with the air bag 30, and the air bag 30 is fixedly connected to the main body 1. On one side of the airbag 30, when inflated, it bulges and closely fits the user's face, thereby making the user more comfortable;

Both ends and the upper side of the main body 1 are fixedly connected with straps 16, and the end faces of the three straps 16 away from the main body 1 are fixedly connected with connecting ropes 17, and the connecting ropes 17 are far away from the corresponding straps 16. One end respectively passes through the side wall of the fixed block 18 and is wound on the rotating rod 20, and the rotating rod 20 is rotatably connected to the side wall of the cavity 19, the cavity 19 is arranged in the fixed block 18, and the rotating rod 20 is far away from the main body 1 One end of one end passes through the other side wall of the cavity 19 and is fixedly connected with a turntable 22. Turning the turntable 22 can make the rotating rod 20 rotate, so that the connecting rope 17 is wound on the rotating rod 20, so that the strap 16 is tightened. To facilitate wearing, specifically in order to make the tightness controllable, the inside of the screw plate 22 is provided with a plurality of dark cavities 23, and the plurality of dark cavities 23 are arranged in a circumferential shape around the rotating rod 20, and each dark cavity 23 is far away from A side wall of the fixed block 18 is connected with a second clamping ball 25 by a second spring 24, and each second clamping ball 25 runs through the side wall of the dark cavity 23 at an end away from the corresponding second spring 24 and is connected with the device respectively. A plurality of second bayonet sockets 26 on the fixed block 18 are movably engaged, and the second spring 24 ejects the second ball 25 to the outside of the dark cavity 23, so that the second ball 25 and the second bayonet socket 26 are always locked. connected, so that the twist plate 22 can be fixed at any position, and then the length of the strap 16 can be changed at will. The outer side of the one end of the rotating rod 20 located in the cavity 19 is fixedly sleeved with two partitions 21, two The partition 21 divides the end of the rotating rod 20 inside the cavity 19 into three parts, which are respectively used to wind the three connecting ropes 17 to prevent the three connecting ropes 17 from being entangled together. An earphone 27 is fixedly connected to the bottom of the connecting rope 17. The earphone 27 is a bone conduction earphone, which is convenient for different people to wear. The bone conduction earphone is the prior art, and its structure and distance are not the technical features of the present invention, so it will not be repeated. .

Embodiment 2, for implementation 1, the lenses placed in the placement groove 31 must be matched. For this situation, it is often impossible to meet the needs of users with different needs for vision correction. If users can wear their own eyes and then If the present invention can be used again, the convenience will be greatly improved. Generally, there are connecting frames and nose pads in the middle of the glasses. If a large space is simply provided for placing the nose pads and connecting frames in order to meet the needs of most glasses, light leakage will be caused. , let the light on both sides cause interference and affect the experience effect, so on the basis of Embodiment 1, a movable baffle 37 is added. Specifically, a dark groove 33 and a chute are provided in the main body 1 and above the relief groove 28 34, the inside of the chute 34 is slidably connected with a first slide bar 35, and the side wall of the dark trough 33 away from the chute 34 is slidably connected with a second slide bar 36, and the first slide bar 35 and One end of the second slide bar 36 away from the bottom of the dark groove 33 is fixedly connected with a baffle plate 37, and the second slide rod 36 is fixedly connected with a plurality of teeth 38 on one side of the dark groove 33 inside, and the bottom of the dark groove 33 A gear 39 is rotatably connected to the groove wall, and the gear 39 is meshed with the teeth 38. A rotating shaft 40 is fixedly connected to the side of the gear 39. The end of the rotating shaft 40 away from the gear 39 penetrates the dark groove 33 and extends to the main body. 1, the rotating shaft 40 is provided with a groove 41 on one end surface outside the main body 1, and the groove bottom of the groove 41 is connected with a square rod 43 through a second spring 42, and the square rod 43 is far away from the second spring. One end of 42 is fixedly connected with a turntable 44, and the side of the turntable 44 close to the main body 1 is fixedly connected with a plurality of first locking balls 45, and the plurality of first locking balls 45 are arranged in a circumferential shape around the rotating shaft 40. The upper side of the main body 1 is provided with a plurality of first bayonet sockets 46 compatible with the first bayonet balls 45, and the second spring 42 pulls the turntable 44 so that the first bayonet balls 45 are held in place with the corresponding first bayonet sockets 46. Then, rotating the first bayonet 46 of the turntable 44 will squeeze the first locking ball 45 engaged with it, and then the turntable 44 will overcome the pulling force of the second spring 42 and move upwards. At this time, the rotating shaft 40 starts to rotate. When the first bayonet 46 When the second spring 42 is in contact with the next first clamping ball 45, the second spring 42 will pull the turntable 44 so that the first bayonet socket 46 and the first clamping ball 45 in contact with it complete the clamping, so that the turntable 44 is fixed, and the turntable 44 can be in any position Fixed to make room for glasses of any size.

Embodiment 3, on the basis of Embodiment 1 or Embodiment 2, the one-way air intake structure in the inflatable block 2 is replaced, and the one-way air intake structure includes a fixed shaft 9 arranged vertically, and the fixed shaft 9. The upper end is slidably connected with the sliding chamber 7 provided in the inner cavity 3, and the lower end is fixedly connected with a rubber pad 11 corresponding to the through hole 13 provided at the bottom of the inflatable block 2. The rubber pad 11 is under the action of gravity under the condition of no air intake. It falls and is compressed under internal pressure, without springs and other components, making production and processing easier and more reliable.

For Embodiments 1, 2, and 3, the layout and installation of the electronic components are basically the same. The inside of the main body 1 is provided with two screens corresponding to the positions of the two eyes, and the main body 1 is provided with a video module and an audio module. and the processor, and the audio module is electrically connected to the earphone 27, the video module is electrically connected to the screen, both the audio module and the video module are electrically connected to the processor, and the processor and an external computer perform wireless data transmission through bluetooth, the screen, the video module, Audio module, processor and earphone 27 are all provided with battery power supply by the inside of fixed block 18, because screen, video module, audio module and processor are all located at the inside of main body 1 so are connected between fixed block 18 and main body 1 Wire 32 (as shown in Figure 1), screen, video module, audio module and processor are powered by the accumulator inside fixed block 18 through wire 32, and also wrap data line in wire 32 and carry out data signal transmission, data transmission, video module , audio module and processor all have publicly used technical solutions at present, and their structures and principles are not the technical features of the present invention, so they will not be described in detail.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications and substitutions can be made to these embodiments without departing from the principle and spirit of the present invention. and modifications, the scope of the invention is defined by the appended claims and their equivalents.

Claims (7)

1. A head-mounted device based on virtual reality and a system thereof, comprising a main body (1) and a fixed block (18), characterized in that: the middle part of the lower side of the main body (1) is provided with a slot (28) , the upper side of the main body (1) is provided with two placement grooves (31), and an inflatable block (2) is fixedly connected to one side of the main body (1), and the inflatable block (2) is provided with an inner cavity (3), and the inner chamber (3) is provided with a one-way air intake structure, and the inflatable block (2) is fixedly connected with an inflatable ball ( 14), the inflatable ball (14) is provided with a vent (15), one side of the side wall of the inner chamber (3) is fixedly connected with a vertical rod (4), and the inside of the vertical rod (4) is provided with There is a sliding hole (6), the sliding hole (6) communicates with the inner cavity (3), and passes through the vertical bar (4) and the inflatable block (2) to communicate with the outside world, and the internal meshing connection of the sliding hole (6) There is a screw (5), the lower end of the screw (5) is rotatably connected with a rubber stopper (8), and the upper end of the screw (5) extends to the outside of the inflatable block (2) through the top of the slide hole (6) and is fixedly connected with a handle, the inside of the main body (1) is provided with a ventilation duct (29), one end of the ventilation duct (29) runs through one end side wall of the main body (1) and communicates with the inner cavity (3), and the ventilation duct (29) The other end passes through one side wall of the main body (1) and communicates with the air bag (30), and the air bag (30) is fixedly connected to one side of the main body (1); Both ends and the upper side of the main body (1) are fixedly connected with straps (16), and the end faces of the three straps (16) away from the main body (1) are fixedly connected with connecting ropes (17), One end of the connecting rope (17) away from the corresponding strap (16) respectively passes through the side wall of the fixed block (18) and is wound on the rotating rod (20), and the rotating rod (20) is rotatably connected to the cavity (19) On the side wall of the cavity (19), the end of the rotating rod (20) away from the main body (1) passes through the other side wall of the cavity (19) and is fixedly connected with a screw plate (22). 2. A virtual reality-based head-mounted device and system thereof according to claim 1, characterized in that: the one-way air intake structure includes a horizontally arranged fixed shaft (9), and the fixed shaft ( One end of 9) is fixedly connected to one end side wall of the inner cavity (3), and the other end of the fixed shaft (9) extends into the through hole (13) provided on the side wall of the other end of the inner cavity (3), so that A washer (12) is fixedly connected to the end surface of the fixed shaft (9) located inside the through hole (13), and a first spring (10) is sleeved on the outside of the fixed shaft (9), and the first spring ( One end of 10) is fixedly connected to one end side wall of the inner chamber (3), and the other end of the first spring (10) is fixedly connected to the rubber pad (11), and the rubber pad (11) is slidably connected to the fixed shaft ( 9) on. 3. A virtual reality-based head-mounted device and its system according to claim 1, characterized in that: the one-way air intake structure includes a vertically arranged fixed shaft (9), and the fixed shaft (9) The upper end is slidingly connected with the sliding cavity (7) provided in the inner chamber (3), and the lower end is fixedly connected with a rubber pad (11) corresponding to the through hole (13) provided at the bottom of the inflatable block (2). 4. A head-mounted device based on virtual reality and its system according to claim 2 or 3, characterized in that: a dark groove is arranged in the main body (1) and above the relief groove (28) (33) and chute (34), the inside of described chute (34) is slidably connected with the first slide bar (35), and described dark groove (33) slides away from the side groove wall of chute (34) A second slide bar (36) is connected, and one end of the first slide bar (35) and the second slide bar (36) away from the bottom of the dark groove (33) is fixedly connected with a baffle plate (37). The slide bar (36) is fixedly connected with a plurality of teeth (38) on one side of the dark groove (33) inside, and the groove wall of the dark groove (33) is rotatably connected with a gear (39), and the gear (39) ) is engaged with the teeth (38), the side of the gear (39) is fixedly connected with a rotating shaft (40), and the end of the rotating shaft (40) away from the gear (39) runs through the dark groove (33) and extends to the main body (1), the rotating shaft (40) is provided with a groove (41) on one end surface outside the main body (1), and the groove bottom of the groove (41) is connected with a square by the second spring (42). Rod (43), the end of the square rod (43) away from the second spring (42) is fixedly connected with a turntable (44), and the side of the turntable (44) close to the main body (1) is fixedly connected with a plurality of The first clamping ball (45), and a plurality of first clamping balls (45) are arranged in a circular shape around the rotating shaft (40), and a plurality of first clamping balls (45) are arranged on the upper side of the main body (1). Matching first bayonet (46). 5. A kind of head-mounted device based on virtual reality and its system according to claim 4, characterized in that: the inside of the screw disk (22) is provided with a plurality of dark cavities (23), the plurality of The dark cavity (23) is circumferentially arranged around the rotating rod (20), and the side wall of each dark cavity (23) away from the fixed block (18) is connected with a second clamping ball ( 25), one end of each second clamping ball (25) away from the corresponding second spring (24) all runs through the side wall of the dark chamber (23) and is respectively connected with a plurality of second clamping balls arranged on the fixed block (18) Mouth (26) movable card connection. 6. A head-mounted device based on virtual reality and its system according to claim 4, characterized in that: said rotating rod (20) is fixedly socketed outside one end inside the cavity (19) with two Partition (21). 7. A virtual reality-based head-mounted device and its system according to claim 4, characterized in that: the fixed block (18) is fixedly connected on both sides of the fixed block (18) and below the connecting rope (17). There are headphones (27).