A head-mounted virtual reality device

Abstract

The present invention relates to a head-mounted virtual reality device, comprising a device body, and also comprising a wearing mechanism connected to the rear side of the device body; the wearing mechanism comprises a shell, a driving assembly and a buffer assembly, the shell is connected to a strap for restraining the head, the driving assembly comprises a driving member and a control member located in the shell, the driving member comprises a guide rod and a movable cylinder, the control member comprises a counterweight plate and a battery; the buffer assembly comprises a top pressure plate and an elastic sheet; the shell is provided with two observation cylinders with front and rear ends penetrating the shell. The present invention is to solve the problem that the head-mounted virtual reality device oppresses the user's face for a long time, causing poor blood circulation and producing indentations on the user's face, especially on the forehead, and provides a head-mounted virtual reality device that can reduce the indentations produced by the virtual reality device on the user's face.

Description

Technical Field

[0001] The present invention relates to the technical field of virtual reality, and in particular to a head-mounted virtual reality device. Background Art

[0002] Virtual reality technology (VR) is a computer simulation system that can create and experience a virtual world. It uses computers to generate a simulated environment and immerse users in it. Virtual reality technology uses real-life data, electronic signals generated by computer technology, and combines them with various output devices to transform them into phenomena that people can feel. These phenomena can be real objects in reality or substances that are invisible to our naked eyes, which are expressed through three-dimensional models. Head-mounted displays are the earliest virtual reality displays. The display principle is that the left and right eye screens display the images of the left and right eyes respectively. After the human eye obtains this information with differences, a three-dimensional sense is generated in the mind.

[0003] A head-mounted virtual reality device is fastened to the head by a strap so that the user can use the virtual reality device through an observation port. In order to fix the virtual reality device, the virtual reality device needs to be close to the user's face. The virtual reality device presses on the user's face for a long time, causing poor blood circulation and producing indentations on the user's face, especially on the forehead, affecting the user's experience.

[0004] "A high-efficiency interactive VR device and VR rendering method thereof" with authorization publication number CN 111679434 B provides a device to achieve the effect of improving blood circulation in the face. The device changes the contact area between the device body and the user's face when the inner frame is lifted and dropped in the outer frame, so that the contact position between the device body and the user's face is not always maintained in the same position. However, the inner frame will rub against the user's face when it is lifted and dropped, which will cause discomfort after long-term use and the use effect is poor. Summary of the invention

[0005] The present invention aims to solve the problem that a head-mounted virtual reality device presses on a user's face for a long time, causing poor blood circulation and producing indentations on the user's face, especially on the forehead. A head-mounted virtual reality device is provided, which can reduce the indentations produced by the virtual reality device on the user's face and improve the user's comfort.

[0006] In order to solve the above problems, the technical solution of the present invention is:

[0007] A head-mounted virtual reality device comprises a device body and a wearing mechanism connected to the rear side of the device body;

[0008] The wearing mechanism includes a shell, a driving assembly and a buffer assembly, the shell is fixedly connected to the rear side of the device body, the shell is connected to a strap for restraining the head, the driving assembly includes a driving member and a control member located in the shell, the driving member includes a guide rod and a movable cylinder, the two ends of the guide rod are connected to the left and right side plates of the shell through an electromagnet, the outer sleeve of the guide rod is provided with a movable cylinder, the rear side of the movable cylinder is a corrugated surface, and the two ends of the movable cylinder are connected to an iron ring sleeved outside the guide rod, the control member is located at the front side of the driving member, the control member includes a counterweight plate and a battery, the upper end of the counterweight plate is rotatably connected to the front inner wall of the shell, the left and right sides of the counterweight plate are horizontally connected to a conductive plate 1, and a conductive plate 2 is horizontally connected to the front inner wall of the shell above each conductive plate 1, the battery is fixedly connected to the shell, the input ends of the two electromagnets are connected to the positive pole of the battery through a wire 1, and the output ends are connected to the conductive plate 2 on the same side through a wire 2, and the two conductive plates 1 are connected to the negative pole of the battery through a wire 3;

[0009] The buffer assembly includes a top pressure plate and an elastic sheet. The rear side plate of the shell is provided with a plurality of sliding holes. The rear end opening of each sliding hole is connected to an elastic sheet. A piston plate is provided in each sliding hole. The front end of each piston plate is connected to a top pressure plate that penetrates the shell and contacts the corrugated surface on the movable cylinder.

[0010] Two observation tubes are arranged in the shell, with front and rear ends penetrating the shell.

[0011] Furthermore, the conductive plate is close to the upper end of the counterweight plate.

[0012] Furthermore, both left and right ends of the guide rod are fixedly connected with electromagnets, and the opposite sides of the two electromagnets are fixedly connected to the left and right inner walls of the shell respectively, and there is a distance between each iron ring and the electromagnet on the same side.

[0013] Furthermore, a tension spring is connected between the left and right parts of the outer top surface of the movable cylinder and the top plate of the shell.

[0014] Furthermore, the counterweight plate is located in the middle of the shell, and is a fan-shaped plate with a narrow upper end and a wide lower end. The rear side plate of the shell is a detachable sealing plate, and the sealing plate is an arc-shaped plate with an arc-shaped protrusion facing forward, and the left and right sides of the sealing plate are straight edges.

[0015] Furthermore, the guide rod is an arc-shaped rod body whose circular ring is concentric with the circular ring where the sealing plate is located, and the movable cylinder is an arc-shaped cylinder body whose circular ring is concentric with the circular ring where the sealing plate is located.

[0016] Furthermore, when the front end of the top pressure plate contacts the crests on the corrugated surface of the movable cylinder, the elastic sheet in the rear end opening of the sliding hole where the top pressure plate is located is in a backward convex state, and when the front end of the top pressure plate contacts the troughs on the corrugated surface of the movable cylinder, the elastic sheet in the rear end opening of the sliding hole where the top pressure plate is located is in a natural state.

[0017] Furthermore, a blowing assembly is also provided in the shell, and the blowing assembly includes a driving plate, a bellows, a first air pipe and a second air pipe. The driving plate is vertically connected to the left end of the bottom surface of the movable cylinder, and a bellows is connected between the driving plate and the left inner wall of the shell. A first one-way valve connecting the inside of the bellows and the outside of the shell is provided on the left side plate of the shell, and the first air pipe is connected to the front side of the sealing plate below a plurality of top pressure plates along the length direction of the sealing plate. One end of the first air pipe is closed and the other end is open. One end of the open first air pipe is connected to the inside of the bellows through the second one-way valve, and a second air pipe is provided between two adjacent sliding holes. One end of the second air pipe is connected to the first air pipe, and the other end passes through the sealing plate backward to form an air vent on the sealing plate.

[0018] Furthermore, the distance between the left and right sides of each iron ring is equal to the distance between the crest and adjacent trough on the corrugated surface of the movable cylinder, and the distance between each iron ring and the electromagnet on the same side is equal to the distance between the crest and adjacent trough on the corrugated surface of the movable cylinder.

[0019] Through the above technical solution, the beneficial effects of the present invention are:

[0020] 1. Under the action of the driving component in the shell of the present invention, multiple elastic sheets on the sealing plate are intermittently in contact with the user's skin, so as to prevent the user's facial skin from contacting the same part of the rear side of the sealing plate for a long time. The elastic sheets can massage the user's skin, promote blood circulation on the user's facial skin, and reduce facial indentations caused by the patient using virtual reality equipment.

[0021] 2. During the rightward movement of the movable cylinder of the present invention, the driving plate moves rightward with the movable cylinder, and the driving plate drives the bellows to move rightward in a stretched state, and the outside air enters the bellows through the first one-way valve. When the movable cylinder drives the driving plate to move leftward, the bellows moves leftward with the driving plate in a compressed state, and the gas in the bellows enters the first air pipe through the second one-way valve. The gas in the first air pipe is blown toward the user's face through the air hole formed by the second air pipe, thereby improving the user's comfort. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of the present invention;

[0023] Figure 2 is an internal schematic diagram of the wearing mechanism of the present invention;

[0024] Figure 3 yes Figure 2 Sectional view at AA in the middle;

[0025] Figure 4 yes Figure 3 A partial enlarged view of point B in the middle;

[0026] Figure 5 is a schematic diagram (cross-sectional view) of the connection between the sealing plate and the movable cylinder of the present invention;

[0027] Figure 6 It is a structural schematic diagram of a counterweight plate and a conductive plate connected to a housing of the present invention;

[0028] Figure 7 It is a schematic diagram of the front side plate of the shell and the observation tube of the present invention.

[0029] The numbers in the accompanying drawings are: 1 is the equipment body, 2 is the shell, 3 is the sealing plate, 4 is the sliding hole, 5 is the elastic sheet, 6 is the second strap, 7 is the first strap, 8 is the observation tube, 9 is the second air pipe, 10 is the first one-way valve, 11 is the first air pipe, 12 is the bellows, 13 is the second one-way valve, 14 is the driving plate, 15 is the electromagnet, 16 is the guide rod, 17 is the iron ring, 18 is the tension spring, 20 is the wire one, 21 is the conductive plate two, 22 is the battery, 23 is the wire three, 24 is the movable cylinder, 25 is the counterweight plate, 26 is the rotating shaft, 27 is the conductive plate one, 29 is the wire two, 30 is the top pressure plate, and 31 is the piston plate. DETAILED DESCRIPTION

[0030] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments:

[0031] like Figure 1 to Figure 7 As shown, a head-mounted virtual reality device includes a device body 1 and a wearing mechanism connected to the rear side of the device body 1;

[0032] The wearing mechanism comprises a shell 2, a driving assembly and a buffer assembly, wherein the shell 2 is a rectangular box, the front side plate of the shell 2 is fixedly connected to the rear side of the device body 1, the shell 2 is connected to a strap for restraining the head, the driving assembly comprises a driving member and a control member located in the shell 2, the driving member comprises a guide rod 16 and a movable cylinder 24, the guide rod 16 is a square rod body, the two ends of the guide rod 16 are connected to the left and right side plates of the shell 2 via an electromagnet 15, the outer sleeve of the guide rod 16 is provided with a movable cylinder 24 that slides horizontally along the guide rod 16, the movable cylinder 24 is a long strip cylinder with a square cross-section, the inner wall of the movable cylinder 24 is in sliding contact with the outer wall of the guide rod 16, the rear side surface of the movable cylinder 24 is a corrugated surface, the two ends of the movable cylinder 24 are connected with an iron ring 17 that is sleeved outside the guide rod 16, the iron ring 17 is a square annular body whose inner wall is in sliding contact with the outer wall of the guide rod 16, the control member is located in front of the driving member, the control member comprises a counterweight plate 25 and a battery 22, the counterweight plate 2 5 is located in the middle of the shell 2, the counterweight plate 25 is a fan-shaped plate body with a narrow upper end and a wide lower end, the upper end of the counterweight plate 25 is rotatably connected to the front inner wall of the shell 2, the upper end of the counterweight plate 25 is provided with a rotating shaft 26 that penetrates the front and rear sides of the counterweight plate 25, the front end of the rotating shaft 26 is rotatably connected to the front inner wall of the shell 2, the left and right sides of the counterweight plate 25 are horizontally connected with conductive plates 27, the two conductive plates 27 are in a left-right symmetrical state along the vertical center line of the counterweight plate 25, and each conductive plate 27 is A conductive plate 21 is horizontally connected to the inner wall of the front side of the housing 2, and the conductive plate 1 27 and the conductive plate 21 are both rectangular plates made of copper. The battery 22 is fixedly connected to the top plate of the housing 2, and the input ends of the two electromagnets 15 are connected to the positive electrode of the battery 22 through a wire 1 20, and the output end of each electromagnet 15 is connected to the conductive plate 21 on the same side through a wire 29, and the two conductive plates 1 27 are connected to the negative electrode of the battery 22 through a wire 3 23;

[0033] The buffer assembly includes a top pressure plate 30 and an elastic sheet 5. The rear side plate of the shell 2 is provided with a plurality of sliding holes 4 corresponding to the peaks and troughs on the corrugated surface of the movable cylinder 24. The sliding hole 4 is a vertically arranged long strip-shaped blind hole with an opening facing backward and recessed into the rear side plate of the shell. The lower end of the sliding hole 4 is lower than the lower end of the movable cylinder 24, and the upper end is higher than the upper end of the movable cylinder 24. An elastic sheet 5 is connected to the rear end opening of each sliding hole 4. A piston plate 31 is provided in each sliding hole 4. The piston plate 31 is a rectangular plate body whose side surface is in sliding contact with the inner wall of the sliding hole 4. The front end of each piston plate 31 is connected to a top pressure plate 30 that penetrates the rear side plate of the shell 2 and contacts the corrugated surface on the movable cylinder 24. The top pressure plate 30 is a rectangular plate body, and the elastic sheet 5 is a sheet body made of rubber material.

[0034] The housing 2 is provided with two observation tubes 8 with front and rear ends penetrating the housing 2 .

[0035] The conductive plate 1 27 is close to the upper end of the counterweight plate 25 .

[0036] The straps include strap 1 7 and strap 2 6. Strap 1 7 is connected between the outer sides of the left and right side panels of the shell 2. Strap 2 6 is connected between the middle of strap 1 7 and the middle of the top panel of the shell 2. Both strap 1 7 and strap 2 6 are long strip-shaped bodies.

[0037] The left and right ends of the guide rod 16 are fixedly connected with electromagnets 15 , and the opposite sides of the two electromagnets 15 are fixedly connected to the left and right inner walls of the housing 2 , respectively. There is a distance between each iron ring 17 and the electromagnet 15 on the same side.

[0038] Tension springs 18 are connected between the left and right parts of the outer top surface of the movable cylinder 24 and the top plate of the shell 2 .

[0039] The rear side plate of the shell 2 is a detachable sealing plate 3, which is an arc-shaped plate body with an arc-shaped protrusion facing forward. The left and right sides of the sealing plate 3 are straight sides. The rear ends of the top plate and the bottom plate of the shell 2 are both provided with arc-shaped grooves corresponding to the sealing plate 3, and there is a distance between the sealing plate 3 and the movable cylinder.

[0040] The guide rod 16 is an arc-shaped rod body whose circular ring is concentric with the circular ring where the sealing plate 3 is located, and the movable cylinder 24 is an arc-shaped cylinder body whose circular ring is concentric with the circular ring where the sealing plate 3 is located.

[0041] When the front end of the top pressure plate 30 contacts the crests on the corrugated surface of the movable cylinder 24, the elastic sheet 5 in the rear end opening of the sliding hole 4 where the top pressure plate 30 is located is in a backward convex state. When the front end of the top pressure plate 30 contacts the troughs on the corrugated surface of the movable cylinder 24, the elastic sheet 5 in the rear end opening of the sliding hole 4 where the top pressure plate 30 is located is in a natural state.

[0042] The shell 2 is also provided with a blowing assembly, which includes a driving plate 14, a bellows 12, a first air pipe 11 and a second air pipe 9. The driving plate 14 is a rectangular plate body, and the driving plate 14 is vertically connected to the left end of the bottom surface of the movable cylinder 24. The bellows 12 is connected between the driving plate 14 and the left inner wall of the shell 2. The openings at both ends of the bellows 12 are blocked by the driving plate 14 and the left side plate of the shell 2 respectively. The left side plate of the shell 2 is provided with a first one-way valve 10 connecting the inside of the bellows 12 and the outside of the shell 2. The exhaust port of the first one-way valve 10 is connected to the exhaust port of the first one-way valve 10. Inside the bellows 12, the air inlet faces outward, and the first air pipe is connected to the front side of the sealing plate 3 below the multiple top pressure plates 30 along the length direction of the sealing plate 3. One end of the first air pipe 11 is closed and the other end is open. The open end of the first air pipe 11 is connected to the inside of the bellows 12 through the second one-way valve 13, and the exhaust port of the second one-way valve 13 is connected to the first air pipe 11, and the air inlet faces the inside of the bellows 12. A second air pipe 9 is provided between each adjacent two sliding holes 4, and one end of the second air pipe 9 is connected to the first air pipe 11, and the other end passes through the sealing plate 3 backward to form an air vent on the sealing plate 3.

[0043] The distance between the left and right sides of each iron ring 17 is equal to the distance between the crest and the adjacent trough on the corrugated surface of the movable cylinder 24, and the distance between each iron ring 17 and the electromagnet 15 on the same side is equal to the distance between the crest and the adjacent trough on the corrugated surface of the movable cylinder 24.

[0044] When in use, the present invention is worn on the user's head through a strap, the user's eyes are aligned with the two observation tubes 8, the user's forehead contacts the rear side of the sealing plate 3, and while the user observes the content presented by the device main body 1 through the observation tube 8, the user will perform various actions according to the content presented by the device main body 1. Therefore, under the influence of various actions performed by the user, the present invention will appear in a state where the left end is low and the right end is high, or the right end is high and the left end is low. When the present invention is in a state where the left end is low and the right end is high, under the action of the self-weight of the counterweight plate 25, the counterweight plate 25 maintains a vertical state, and the conductive plate 1 27 on the left side of the counterweight plate 25 contacts the conductive plate 2 21 located on the left side of the counterweight plate 25, thereby making the electromagnetic The iron 15 and the battery 22 form a passage state, and the electromagnet 15 on the left side of the guide rod 16 generates a magnetic attraction to the iron ring 17 at the left end of the movable cylinder 24, so that the movable cylinder 24 moves to the left. In the process of the movable cylinder 24 moving to the left, when the front end of the top pressure plate 30 on the buffer assembly contacts the crest on the corrugated surface of the movable cylinder 24, the top pressure plate 30 drives the connected piston plate 31 to move backward to the limit state, and the gas pressure in the sliding hole 4 on the rear side of the piston plate 31 increases, so that the elastic sheet 5 in the rear end opening of the sliding hole 4 where the top pressure plate 30 is located is in a backward convex state. When the front end of the top pressure plate 30 contacts the trough on the corrugated surface of the movable cylinder 24, the top pressure plate 30 drives the connected piston plate 31 to move forward to the limit state, and the rear side sliding hole 4 of the piston plate 31 The gas pressure in the hole 4 decreases, and the elastic sheet 5 in the rear end opening of the slide hole 4 where the top pressure plate 30 is located is in a natural state under the action of its own restoring force. When the present invention changes from a state where the left end is low and the right end is high to a horizontal state, the conductive plate 1 on the left side of the counterweight plate 25 and the conductive plate 2 located on the left side of the counterweight plate 25 are separated, and the electromagnet 15 on the left side of the guide rod 16 is no longer magnetic. The movable cylinder 24 returns to its original state under the action of the tension spring 18. When the present invention is in a state where the left end is high and the right end is low, under the action of the deadweight of the counterweight plate 25, the counterweight plate 25 maintains a vertical state, the conductive plate 1 on the right side of the counterweight plate 25 is in contact with the conductive plate 2 located on the right side of the counterweight plate 25, and the electromagnet 15 on the right side of the guide rod 16 and the battery 22 forms a passage state, and the movable cylinder 24 moves to the right, so that the elastic sheet 5 on the sealing plate 3 is convex backward or in a natural state. Therefore, during the use of the present invention, the multiple elastic sheets 5 on the sealing plate 3 are in intermittent contact with the user's skin, avoiding the user's facial skin from contacting the same part of the rear side of the sealing plate 3 for a long time. Each elastic sheet of the present application does not move its position, but each elastic sheet makes intermittent contact with the corresponding position, thereby achieving a point-to-point massage effect, and will not form friction on the user's facial skin, avoiding facial skin discomfort caused by long-term use of the virtual reality device. The present application promotes blood circulation on the user's facial skin and reduces facial indentations caused by patients using virtual reality equipment.

[0045] During the rightward movement of the movable cylinder 24 of the present invention, the driving plate 14 moves rightward with the movable cylinder 24, and the driving plate 14 drives the bellows 12 to move rightward in a stretched state. The outside air enters the bellows 12 through the first one-way valve 10. When the movable cylinder 24 drives the driving plate 14 to move leftward, the bellows 12 moves leftward with the driving plate 14 in a compressed state. The gas in the bellows 12 enters the first air pipe 11 through the second one-way valve 13. The gas in the first air pipe 11 is blown toward the user's face through the vent hole formed by the second air pipe 9, thereby improving the user's comfort.

[0046] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the above embodiments. Without violating the spirit of the present invention, that is, within the scope of disclosure, any multiple equivalent or equivalent modifications or replacements of the technical solutions of the invention belong to the protection scope of the present invention.

Claims

1. A head-mounted virtual reality device, comprising a device body (1), characterized in that: Also included is a wearing mechanism connected to the rear side of the device body (1); The wearing mechanism comprises a shell (2), a driving assembly and a buffer assembly. The shell (2) is fixedly connected to the rear side of the device body (1). A strap for restraining the head is connected to the shell (2). The driving assembly comprises a driving member and a control member located in the shell (2). The driving member comprises a guide rod (16) and a movable cylinder (24). The two ends of the guide rod (16) are connected to the left and right side plates of the shell (2) via an electromagnet (15). The outer sleeve of the guide rod (16) is provided with a movable cylinder (24). The rear side surface of the movable cylinder (24) is a corrugated surface. The two ends of the movable cylinder (24) are connected to iron rings (17) sleeved on the outside of the guide rod (16). The control member is located in front of the driving member. It comprises a counterweight plate (25) and a battery (22), the upper end of the counterweight plate (25) is rotatably connected to the front inner wall of the shell (2), the left and right side surfaces of the counterweight plate (25) are horizontally connected to a conductive plate 1 (27), a conductive plate 2 (21) is horizontally connected to the front inner wall of the shell (2) above each conductive plate 1 (27), the battery (22) is fixedly connected to the shell (2), the input ends of the two electromagnets (15) are connected to the positive electrode of the battery (22) via a wire 1 (20), and the output ends are connected to the conductive plate 2 (21) on the same side via a wire 2 (29), and the two conductive plates 1 (27) are connected to the negative electrode of the battery (22) via a wire 3 (23); The buffer assembly comprises a top pressure plate (30) and an elastic sheet (5); a plurality of sliding holes (4) are provided on the rear side plate of the housing (2); an elastic sheet (5) is connected to the rear end opening of each sliding hole (4); a piston plate (31) is provided in each sliding hole (4); and a top pressure plate (30) is connected to the front end of each piston plate (31) and passes through the housing (2) and contacts the corrugated surface on the movable cylinder (24); Two observation tubes (8) are provided in the shell (2) and the front and rear ends thereof penetrate through the shell (2); There is a gap between each iron ring (17) and the electromagnet (15) on the same side; When the front end of the top pressure plate (30) contacts the crests on the corrugated surface of the movable cylinder (24), the elastic sheet (5) in the rear end opening of the sliding hole (4) where the top pressure plate (30) is located is in a backward convex state; when the front end of the top pressure plate (30) contacts the troughs on the corrugated surface of the movable cylinder (24), the elastic sheet (5) in the rear end opening of the sliding hole (4) where the top pressure plate (30) is located is in a natural state.

2. A head mounted virtual reality device according to claim 1, characterized in that: The conductive plate 1 (27) is close to the upper end of the counterweight plate (25).

3. A head mounted virtual reality device according to claim 1, characterized in that: A tension spring (18) is connected between the left and right portions of the outer top surface of the movable cylinder (24) and the top plate of the housing (2).

4. A head mounted virtual reality device according to claim 1, characterized in that: The counterweight plate (25) is located in the middle of the housing (2). The counterweight plate (25) is a fan-shaped plate body with a narrow upper end and a wide lower end. The rear side plate of the housing (2) is a detachable sealing plate (3). The sealing plate (3) is an arc-shaped plate body with an arc-shaped protrusion facing forward. The left and right sides of the sealing plate (3) are straight edges.

5. A head mounted virtual reality device according to claim 4, characterized in that: The guide rod (16) is an arc-shaped rod body whose circular ring is concentric with the circular ring where the sealing plate (3) is located, and the movable cylinder (24) is an arc-shaped cylinder body whose circular ring is concentric with the circular ring where the sealing plate (3) is located.

6. A head mounted virtual reality device according to claim 4, characterized in that: The shell (2) is also provided with an air blowing assembly, the air blowing assembly comprising a driving plate (14), a bellows (12), a first air pipe (11) and a second air pipe (9), the driving plate (14) being vertically connected to the left end of the bottom surface of the movable cylinder (24), the bellows (12) being connected between the driving plate (14) and the left inner wall of the shell (2), the left plate of the shell (2) being provided with a first one-way valve (10) connecting the inside of the bellows (12) and the outside of the shell (2), the first air pipe (11) and the second air pipe (9), the driving plate (14) being vertically connected to the left end of the bottom surface of the movable cylinder (24), the bellows (12) being connected between the driving plate (14) and the left inner wall of the shell (2), the first one-way valve (10) being connected to the inside of the bellows (12) and the outside of the shell (2), The tube (11) is connected to the front side of the sealing plate (3) below the plurality of top pressure plates (30) along the length direction of the sealing plate (3); one end of the first air tube (11) is closed and the other end is open; the open end of the first air tube (11) is connected to the interior of the bellows (12) via a second one-way valve (13); a second air tube (9) is provided between two adjacent sliding holes (4); one end of the second air tube (9) is connected to the first air tube (11) and the other end passes through the sealing plate (3) backwards to form an air vent on the sealing plate (3).

7. A head mounted virtual reality device according to claim 1, characterized in that: The distance between the left and right sides of each iron ring (17) is equal to the distance between the crest and the adjacent trough on the corrugated surface of the movable cylinder (24), and the distance between each iron ring (17) and the electromagnet (15) on the same side is equal to the distance between the crest and the adjacent trough on the corrugated surface of the movable cylinder (24).

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