CN113267898A

CN113267898A - A three-dimensional VR presentation device for gardens show

Info

Publication number: CN113267898A
Application number: CN202110498349.2A
Authority: CN
Inventors: 李国霞
Original assignee: GANSU VOCATIONAL & TECHNICAL COLLEGE OF NONFERROUS METALLURGY
Current assignee: GANSU VOCATIONAL & TECHNICAL COLLEGE OF NONFERROUS METALLURGY
Priority date: 2021-05-08
Filing date: 2021-05-08
Publication date: 2021-08-17

Abstract

The invention discloses a three-dimensional VR demonstration device for garden exhibition, which comprises a VR host and VR glasses, wherein a motor box is fixedly arranged at the top of the VR host, a servo motor is arranged in the motor box, the output end of the servo motor is connected with a rotating shaft, the bottom end of the rotating shaft is connected with a worm wheel, a bearing frame is arranged at the top of an inner cavity of the VR host, a winding shaft is arranged in the bearing frame, a worm is arranged in the center of the winding shaft, the worm is meshed with the worm wheel, a containing box is fixedly arranged at the bottom end of the bearing frame, VR glasses are arranged in the containing box, two groups of hoisting blocks are symmetrically arranged at two ends of the VR glasses, a nylon rope is wound on the winding shaft, and one end of the nylon rope is connected with the hoisting blocks. Has the advantages that: the invention adopts the winding shaft and the storage box, reduces the fatigue of the neck caused by long-time use of VR glasses by a user, and can store the VR glasses into the storage box at a high position again after use, thereby effectively avoiding the VR glasses from being pressed or broken.

Description

A three-dimensional VR presentation device for gardens show

Technical Field

The invention relates to the technical field of three-dimensional VR demonstration, in particular to a three-dimensional VR demonstration device for displaying gardens.

Background

Gardens are designed in a certain region by applying engineering technology and artistic means, beautiful natural environments and rest domains are created by means of land form improvement, tree planting, flower and grass planting, building and garden road arrangement and the like, along with the rapid improvement of informatization level, the exhibition force of garden landscapes is enhanced by the three-dimensional VR demonstration technology, the exhibition means and the technical level of the gardens are improved, the trend that visitors identify the garden values, trust and dependence are irreversible is improved, designers can examine the exhibition effect of the gardens by the three-dimensional VR demonstration technology, the design scheme of the gardens is optimized, and the three-dimensional VR demonstration device for garden exhibition is used for further enhancing the exhibition effect of the gardens.

The conventional three-dimensional VR demonstration device for displaying gardens is convenient to use and mostly directly placed on a demonstration seat, however, the VR glasses have a large possibility of being crushed or broken, moreover, because VR glasses are heavy, the user is easy to have symptoms such as neck ache and the like after wearing the glasses for a long time, and most of the existing three-dimensional VR demonstration devices for garden exhibition directly expose the seat in the exhibition hall, the noise and the turbid air generated by the coming and going people in the exhibition hall can greatly reduce the visiting experience of the user, seriously affect the demonstration effect of the device, in addition, most of seats of the existing three-dimensional VR demonstration device for garden exhibition are fixed, so that a user cannot stand at any time for improving experience feeling when wearing a safety belt facility using device, or the height of the seat is adjusted, and the independent operability of a exhibitor is limited.

An effective solution to the problems in the related art has not been proposed yet.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a three-dimensional VR demonstration device for garden exhibition, which has the advantages that VR glasses can be stored at a high position, so that the VR glasses are not easy to crush rings or break, the fatigue of the neck of a user can be reduced, external noise can be isolated, internal air is purified, the substitution feeling and experience feeling of the user are improved, the height and the using state of a seat can be automatically adjusted when a safety belt and a using device are worn, the operability of the user is improved, and the problems in the background technology are solved.

(II) technical scheme

In order to realize the advantages that the VR glasses can be stored at a high position, so that the VR glasses are not easy to press rings or break, the fatigue of the neck of a user can be reduced, external noise can be isolated, internal air can be purified, the substitution feeling and experience feeling of the user can be improved, the height and the using state of the seat can be automatically adjusted when the user wears a safety belt and a using device, and the operability of the user is improved, the VR glasses have the following specific technical scheme:

the utility model provides a three-dimensional VR presentation device for gardens show, includes VR host computer and VR glasses, VR host computer top fixed mounting has the motor case, and the motor incasement embeds there is servo motor to the servo motor output is connected with the axis of rotation, the axis of rotation runs through VR host computer top and is connected with the worm wheel, VR host computer inner chamber top is installed the bearing bracket, and installs the spool in the bearing bracket to spool central authorities install the worm, the worm meshes with the worm wheel mutually, bearing bracket bottom fixed mounting is connected with the containing box, and the containing box embeds there is the VR glasses to VR glasses both ends symmetry installs two sets of hoist and mount pieces, the symmetry winding has the nylon rope on the spool, and nylon rope one end runs through the containing box top and connects the hoist and mount piece.

Further, the lifting groove has been seted up to VR host computer inner chamber lateral wall, and lifting groove internally mounted has first hydraulic telescoping rod to first hydraulic telescoping rod swing joint has the elevator, elevator one side fixed connection seat main part lateral wall central authorities, and seat main part bottom central authorities install the rotation axis to install the connecting plate on the rotation axis, connecting plate one end fixedly connected with bedplate.

Further, seat main part back mounted has the mounting panel, and the mounting panel bottom surface evenly installs three second hydraulic stretching pole, and three the regulating plate top surface is connected to second hydraulic stretching pole expansion end, the extending plate is installed to seat main part bottom bilateral symmetry, and two the relative one side lateral symmetry of extending plate has seted up the regulation spout, regulating plate bilateral symmetry installs adjust the slider, and adjust the slider inlay card in adjusting the spout, first connecting seat is installed to bedplate bottom surface one end, the second connecting seat is installed to regulating plate top one end, and is connected with the trace between second connecting seat and the first connecting seat.

Furthermore, install air purifier on the VR host computer lateral wall, and air purifier is linked together the installation with the ventilator to the ventilator scavenge pipe is linked together with VR host computer inner chamber.

Further, the front surface of the seat body is sequentially provided with a pillow and a back cushion, safety belts are symmetrically arranged on two sides of the front surface of the seat body, and the center of the top surface of the seat plate is provided with a cushion.

Furthermore, a stereo surround sound is installed on the side wall of the inner cavity of the VR main machine.

Furthermore, VR host computer bottom surface fixed mounting is on electric rotary table, and electric rotary table fixed mounting is on the installation base.

Further, the handrail is installed to the positive bilateral symmetry of seat main part, one side install the rocker on the handrail, and rocker and electric rotary table electric connection, opposite side install the operation panel on the handrail, and operation panel and servo motor, stereo set, VR host computer, VR glasses, first hydraulic telescoping rod, second hydraulic telescoping rod, air purifier and ventilator electric connection.

Furthermore, a sound insulation layer is installed on the side wall of the inner cavity of the VR main machine.

Furthermore, the VR host computer openly installs the guard gate through the hinge, and installs the handle on the guard gate.

(III) advantageous effects

Compared with the prior art, the invention provides a three-dimensional VR demonstration device for displaying gardens, which has the following beneficial effects:

(1) the invention adopts the winding shaft and the containing box, when a user enters the inner cavity of the VR main machine, the servo motor in the motor box can be controlled by the operation panel to drive the rotating shaft to rotate, the worm wheel arranged at one end of the rotating shaft is meshed with the worm arranged at the center of the winding shaft on the bearing frame, the rotating shaft can drive the winding shaft to rotate when rotating, so that the nylon rope wound on the winding shaft is released, one end of the nylon rope is connected with the hoisting blocks arranged at the two ends of the VR glasses, the VR glasses can be hoisted out from the containing box at a high position, because the VR glasses are in a suspended state, when the height is adjusted to be proper, the user can share part of the self weight of the VR glasses by the nylon rope after wearing the VR glasses, thereby reducing the oppression of the VR glasses to the neck of the user, reducing the fatigue feeling of the neck caused by the long-time use of the VR glasses by the user, when the user finishes using the VR glasses, according to above-mentioned step reverse operation, can promote VR glasses again and reset to the containing box of eminence in, can effectually avoid VR glasses by the clamping ring or break.

(2) The air purifier and the stereo surround sound are adopted, when the air purifier and the stereo surround sound are used, a user enters the inner cavity of the VR host through the protective door and closes the door, the sound insulation layer arranged on the side wall of the inner cavity of the VR host can isolate the noise of an external exhibition hall, when the user wears VR glasses to experience a garden exhibition, the stereo surround sound arranged on the side wall of the inner cavity of the VR host is synchronously used for playing audio, the hearing of the user seems to be in the garden, in addition, the air purifier and the ventilator are simultaneously started to purify and ventilate the air in the inner cavity of the VR host in real time, and the user can feel the fresh air in the garden, so that the substitution feeling and experience feeling of the user are greatly improved.

(3) When the invention adopts the seat body and the seat board, when in use, a user can lean against the seat body to wear the safety belt, then the operation board arranged on one side armrest controls the lifting block to push the seat body to lift along the lifting groove by controlling the first hydraulic telescopic rod arranged in the lifting groove to push the lifting block, thereby adjusting the height of the seat body, then three second hydraulic telescopic rods arranged on the bottom surface of the mounting board are synchronously started to push the adjusting plate to lift, the adjusting slide blocks arranged on the two sides of the adjusting plate slide along the adjusting slide grooves arranged on the extending plate during lifting, the second connecting seat at one end of the top of the adjusting plate is connected with the first connecting seat at one end of the bottom surface of the seat board by the linkage rod, when the adjusting plate lifts, the second connecting seat can rotate along the rotating shaft on the connecting plate by one end of the linkage rod seat board until the seat board and the seat board are ninety degrees, and the user can sit on the seat board, install bolster and back of the body on the seat main part, install the cushion on the bedplate, can improve user's comfort level, and the rocker control of installation drives the VR host computer rotation on the installation base on the opposite side handrail of user's accessible, thereby can improve user's operation and experience and feel, and only need guarantee that the nylon rope that VR glasses are connected is in the lax state, even the user is in the state of wearing VR glasses and safety belt and also can operate through rocker and operation panel, change the state that self stands or sits down through changing the bedplate state at any time, perhaps adjust seat main part height at any time, user's operability has been improved greatly.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is an external view of a three-dimensional VR demonstration apparatus for displaying a landscape according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a three-dimensional VR demonstration apparatus for displaying gardens according to an embodiment of the invention;

FIG. 3 is a side cross-sectional view of a seat according to an embodiment of the invention;

FIG. 4 is an enlarged view at A of FIG. 2 according to an embodiment of the present invention;

FIG. 5 is an enlarged view at B of FIG. 3 according to an embodiment of the present invention;

FIG. 6 is a perspective view of a seat plate according to an embodiment of the present invention;

fig. 7 is a perspective view of an adjustment plate according to an embodiment of the present invention.

In the figure:

1. installing a base; 2. an electric rotating table; 3. a VR host; 4. an air purifier; 5. a ventilator; 6. a motor case; 7. a protective door; 8. a handle; 9. a lifting groove; 10. a first hydraulic telescopic rod; 11. a seat main body; 12. an extension plate; 13. a seat plate; 14. a handrail; 15. a rocker; 16. an operation panel; 17. a pillow pad; 18. a seat belt; 19. a back pad; 20. a cushion; 21. adjusting the sliding chute; 22. a sound insulating layer; 23. VR glasses; 24. a servo motor; 25. a rotating shaft; 26. stereo surround sound box; 27. a lifting block; 28. mounting a plate; 29. a second hydraulic telescopic rod; 30. a first connecting seat; 31. a linkage rod; 32. a bearing bracket; 33. a spool; 34. a worm gear; 35. a worm; 36. a nylon cord; 37. a storage box; 38. hoisting the blocks; 39. an adjusting plate; 40. adjusting the sliding block; 41. a second connecting seat; 42. a connecting plate; 43. a rotating shaft.

Detailed Description

For further explanation of the various embodiments, the drawings which form a part of the disclosure and which are incorporated in and constitute a part of this specification, illustrate embodiments and, together with the description, serve to explain the principles of operation of the embodiments, and to enable others of ordinary skill in the art to understand the various embodiments and advantages of the invention, and, by reference to these figures, reference is made to the accompanying drawings, which are not to scale and wherein like reference numerals generally refer to like elements.

According to an embodiment of the invention, a three-dimensional VR demonstration apparatus for displaying gardens is provided.

Referring to the drawings and the detailed description, as shown in fig. 1-7, a three-dimensional VR demonstration apparatus for displaying gardens according to an embodiment of the present invention includes a VR host 3 and VR glasses 23, a motor box 6 is fixedly installed on the top of the VR host 3, a servo motor 24 is installed in the motor box 6, an output end of the servo motor 24 is connected to a rotating shaft 25, the rotating shaft 25 is connected to a worm wheel 34 through the top of the VR host 3, a bearing frame 32 is installed on the top of an inner cavity of the VR host 3, a winding shaft 33 is installed in the bearing frame 32, a worm 35 is installed in the center of the winding shaft 33, the worm 35 is engaged with the worm wheel 34, a storage box 37 is fixedly installed at the bottom end of the bearing frame 32, the VR glasses 23 are installed in the storage box 37, two sets of hanging blocks 38 are symmetrically installed at two ends of the VR glasses 23, nylon ropes 36 are symmetrically wound on the winding shaft 33, and 36 one end of nylon rope runs through containing box 37 top and connects hoist and mount piece 38, has played and has reduced the tired sense of neck that the user used VR glasses 23 for a long time to cause, and when the user finishes using, can accomodate VR glasses 23 to the containing box 37 of eminence in, can effectually avoid VR glasses 23 by the clamping ring or break.

In one embodiment, a lifting groove 9 is formed in a side wall of an inner cavity of the VR main machine 3, a first hydraulic telescopic rod 10 is installed inside the lifting groove 9, the first hydraulic telescopic rod 10 is movably connected with a lifting block 27, one side of the lifting block 27 is fixedly connected with the center of a side wall of the seat body 11, a rotating shaft 43 is installed at the center of the bottom end of the seat body 11, a connecting plate 42 is installed on the rotating shaft 43, and one end of the connecting plate 42 is fixedly connected with the seat plate 13, so that the function of adjusting the use state of the seat plate 13 is achieved.

In one embodiment, the mounting plate 28 is mounted on the back surface of the seat body 11, three second hydraulic telescopic rods 29 are uniformly mounted on the bottom surface of the mounting plate 28, the movable ends of the three second hydraulic telescopic rods 29 are connected with the top surface of the adjusting plate 39, the extending plates 12 are symmetrically mounted on two sides of the bottom end of the seat body 11, the adjusting chutes 21 are symmetrically formed in two opposite sides of the two extending plates 12, the adjusting sliders 40 are symmetrically mounted on two sides of the adjusting plate 39, the adjusting sliders 40 are embedded in the adjusting chutes 21 in a clamping manner, the first connecting seat 30 is mounted at one end of the bottom surface of the seat plate 13, the second connecting seat 41 is mounted at one end of the top of the adjusting plate 39, and the linkage rod 31 is connected between the second connecting seat 41 and the first connecting seat 30, so as to adjust the use state of the seat plate 13.

In an embodiment, install air purifier 4 on the 3 lateral wall of VR host computer, and air purifier 4 is linked together the installation with ventilator 5 to ventilator 5 scavenge pipe is linked together with the 3 inner chambers of VR host computer, air purifier 4 and ventilator 5 are current mature technique, do not do here and give unnecessary details, have played and have purified in real time the taking a breath to the air of the 3 inner chambers of VR host computer, let the user experience the sensation of the fresh air in body department gardens, thereby the effect of the sense of substitution that has improved the user greatly and experienced the sense.

In one embodiment, the front surface of the seat body 11 is provided with a pillow 17 and a back cushion 19 in sequence, the two sides of the front surface of the seat body 11 are symmetrically provided with safety belts 18, and the center of the top surface of the seat plate 13 is provided with a cushion 20, which improves the comfort and safety of a user.

In one embodiment, a stereo surround sound 26 is installed on the side wall of the inner cavity of the VR host 3, the stereo surround sound 26 is the existing mature technology, and is not described herein any more, so that the auditory sense of the user is as if the user is in a garden, and the substitution sense and the experience sense of the user are greatly improved.

In one embodiment, the bottom surface of the VR host 3 is fixedly installed on the electric rotating platform 2, and the electric rotating platform 2 is fixedly installed on the installation base 1, so as to control the electric rotating platform 2 to drive the VR host 3 to rotate, thereby improving the operation feeling and the experience feeling of the user.

In one embodiment, the armrests 14 are symmetrically installed on two sides of the front surface of the seat body 11, the rocker 15 is installed on the armrest 14 on one side, the rocker 15 is electrically connected with the electric rotating platform 2, the operating plate 16 is installed on the armrest 14 on the other side, the operating plate 16 is electrically connected with the servo motor 24, the stereo surround sound box 26, the VR host 3, the VR glasses 23, the first hydraulic telescopic rod 10, the second hydraulic telescopic rod 29, the air purifier 4 and the ventilator 5, so that the operation of a user is facilitated, and the user can operate through the rocker 15 and the operating plate 16 even in a state of wearing the VR glasses 23 and the safety belt 18, so that the self standing or sitting state can be changed by changing the state of the seat plate 13 at any time, or the height of the seat body 11 can be adjusted at any time, and the operability of the user.

In one embodiment, the sound insulation layer 22 is mounted on the side wall of the inner cavity of the VR host 3, and plays a role in isolating and shielding noise outside the VR host 3.

In one embodiment, the VR main machine 3 is provided with a protective door 7 on the front surface through a hinge, and a handle 8 is arranged on the protective door 7.

The working principle is as follows:

the invention adopts the winding shaft 33 and the containing box 37, when a user enters the inner cavity of the VR main machine 3, the servo motor 24 in the motor box 6 can be controlled by the operation plate 16 to drive the rotating shaft 25 to rotate, the worm wheel 34 arranged at one end of the rotating shaft 25 is meshed with the worm 35 arranged at the center of the winding shaft 33 on the bearing frame 32, when the rotating shaft 25 rotates, the rotating shaft 33 can be driven to rotate, the nylon rope 36 wound on the winding shaft 33 is released, one end of the nylon rope 36 is connected with the hoisting blocks 38 arranged at two ends of the VR glasses 23, the VR glasses 23 can be hoisted out from the containing box 37 at a high position, because the VR glasses 23 are in a suspended state, when the height is adjusted to be proper, the user can be shared by the nylon rope 36 after wearing the VR glasses 23, the self weight of part of the VR glasses 23 is reduced, the oppression of the neck of the user by the VR glasses 23 is reduced, the fatigue of the neck caused by the user using the VR glasses 23 for a long time is reduced, after the user finishes using, according to the reverse operation of above-mentioned step, can promote VR glasses 23 again and reset to the containing box 37 of eminence in, can effectually avoid VR glasses 23 to be broken by the clamping ring or fall into, during the use, the user gets into and closes the door behind the 3 inner chambers of VR host computer through guard gate 7, the puigging 22 of installing in 3 inner chamber side wall of VR host computer can completely cut off the noise in external exhibition room this moment, wear VR glasses 23 when the user sets up experience gardens exhibition, synchronous use installs the stereo surround stereo set 26 broadcast audio frequency on the 3 inner chamber lateral walls of VR host computer, make the user's sense of hearing seem to be in the middle of the gardens, start air purifier 4 and ventilator 5 in addition and carry out real-time purification ventilation to the air of 3 inner chambers of VR host computer, let the user experience the sensation of the fresh air in gardens, thereby user's sense and experience sense have been improved greatly. When the seat is used, a user can lean against the seat body 11 to wear the safety belt 18, then the operation plate 16 arranged on one side armrest 14 controls the first hydraulic telescopic rod 10 arranged in the lifting groove 9 to push the lifting block 27 to drive the seat body 11 to lift along the lifting groove 9, so as to adjust the height of the seat body 11, then the three second hydraulic telescopic rods 29 arranged on the bottom surface of the mounting plate 28 are synchronously started to push the adjusting plate 39 to lift, the adjusting sliders 40 arranged on two sides of the adjusting plate 39 slide along the adjusting sliding grooves 21 formed in the extending plate 12 during lifting, the second connecting seat 41 at one end of the top of the adjusting plate 39 is connected with the first connecting seat 30 at one end of the bottom of the seat plate 13 through the linkage rod 31, when the adjusting plate 39 lifts, the seat plate 13 can rotate along the rotating shaft 43 on the connecting plate 42 through one end of the linkage rod 31 until the seat plate 13 and the seat body 11 are ninety degrees, the user can sit on bedplate 13, install pillow 17 and back cushion 19 on the seat main part 11, install cushion 20 on bedplate 13, can improve user's comfort level, and the rocker 15 control of installation drives the electric rotary table 2 of installing on installation base 1 and drives the VR host computer 3 rotation on user's accessible opposite side handrail 14, thereby can improve user's operation sense and experience sense, and only need guarantee that the nylon rope 36 that VR glasses 23 are connected is in the lax state, even the user is in and can also operate through rocker 15 and operation panel 16 wearing VR glasses 23 and safety belt 18's state, change the state that self stood or sat down through changing bedplate 13 state at any time, perhaps adjust seat main part 11 height at any time, user's operability has been improved greatly.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "disposed," "connected," "secured," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. A three-dimensional VR presentation device for garden exhibition comprises a VR host (3) and VR glasses (23), and is characterized in that a motor box (6) is fixedly mounted at the top of the VR host (3), a servo motor (24) is arranged in the motor box (6), the output end of the servo motor (24) is connected with a rotating shaft (25), the rotating shaft (25) penetrates through the top of the VR host (3) and is connected with a worm wheel (34), a bearing frame (32) is mounted at the top of an inner cavity of the VR host (3), a winding shaft (33) is mounted in the bearing frame (32), a worm (35) is mounted in the center of the winding shaft (33), the worm (35) is meshed with the worm wheel (34), a containing box (37) is fixedly mounted at the bottom of the bearing frame (32), VR glasses (23) are arranged in the containing box (37), and two sets of hoisting blocks (38) are symmetrically mounted at two ends of the VR glasses (23), the winding shaft (33) is symmetrically wound with nylon ropes (36), and one end of each nylon rope (36) penetrates through the top of the storage box (37) to be connected with the hoisting block (38).

2. The three-dimensional VR demonstration device for displaying gardens as claimed in claim 1, wherein a lifting groove (9) is formed in a side wall of an inner cavity of the VR main body (3), a first hydraulic telescopic rod (10) is installed inside the lifting groove (9), a lifting block (27) is movably connected to the first hydraulic telescopic rod (10), one side of the lifting block (27) is fixedly connected to the center of a side wall of the seat main body (11), a rotating shaft (43) is installed at the center of the bottom end of the seat main body (11), a connecting plate (42) is installed on the rotating shaft (43), and a seat plate (13) is fixedly connected to one end of the connecting plate (42).

3. The three-dimensional VR demonstration device for displaying gardens as claimed in claim 2, wherein a mounting plate (28) is mounted on the back surface of the seat body (11), three second hydraulic telescopic rods (29) are uniformly mounted on the bottom surface of the mounting plate (28), the movable ends of the three second hydraulic telescopic rods (29) are connected with the top surface of an adjusting plate (39), extension plates (12) are symmetrically mounted on the two sides of the bottom end of the seat body (11), adjusting chutes (21) are symmetrically formed in the two opposite sides of the extension plates (12), adjusting sliders (40) are symmetrically mounted on the two sides of the adjusting plate (39), the adjusting sliders (40) are clamped in the adjusting chutes (21), a first connecting seat (30) is mounted at one end of the bottom surface of the seat plate (13), a second connecting seat (41) is mounted at one end of the top of the adjusting plate (39), and a linkage rod (31) is connected between the second connecting seat (41) and the first connecting seat (30).

4. The three-dimensional VR demonstration device for displaying gardens of claim 1, wherein an air purifier (4) is installed on the outer side wall of the VR main machine (3), the air purifier (4) is installed to be communicated with a ventilator (5), and a ventilation pipe of the ventilator (5) is communicated with the inner cavity of the VR main machine (3).

5. The three-dimensional VR demonstration device for displaying gardens as claimed in claim 2, wherein the front surface of the seat body (11) is sequentially provided with a pillow (17) and a back cushion (19), the two sides of the front surface of the seat body (11) are symmetrically provided with safety belts (18), and the center of the top surface of the seat plate (13) is provided with a cushion (20).

6. The three-dimensional VR demonstration device for displaying gardens of claim 1, wherein stereo surround sound (26) is mounted on the side wall of the inner cavity of the VR main body (3).

7. The three-dimensional VR demonstration device for displaying gardens of claim 1, wherein the bottom surface of the VR main machine (3) is fixedly arranged on the electric rotating table (2), and the electric rotating table (2) is fixedly arranged on the mounting base (1).

8. The three-dimensional VR demonstration device for displaying gardens of claim 2, wherein the seat body (11) is symmetrically provided with two armrests (14) on two sides of the front surface, one side of the armrests (14) is provided with a rocker (15), the rocker (15) is electrically connected with the electric rotating platform (2), the other side of the armrests (14) is provided with an operation board (16), the operation board (16) is electrically connected with the servo motor (24), the stereo surround sound box (26), the VR host (3), the VR glasses (23), the first hydraulic telescopic rod (10), the second hydraulic telescopic rod (29), the air purifier (4) and the ventilator (5).

9. The three-dimensional VR demonstration device for displaying gardens of claim 1, wherein a sound insulation layer (22) is mounted on the side wall of the inner cavity of the VR main machine (3).

10. The three-dimensional VR demonstration device for displaying gardens of claim 1, wherein a protective door (7) is mounted on the front surface of the VR main unit (3) through a hinge, and a handle (8) is mounted on the protective door (7).