CN113240995A

CN113240995A - Simulation teaching device based on VR technique

Info

Publication number: CN113240995A
Application number: CN202110583842.4A
Authority: CN
Inventors: 赵建峰; 王淑英; 许晓辉; 卢春光; 贾亚娟; 王玉亮; 侯东杰; 杨绍清; 余东先; 毛颖颖; 郑宝林; 李明
Original assignee: Henan Polytechnic Institute
Current assignee: Henan Polytechnic Institute
Priority date: 2021-05-27
Filing date: 2021-05-27
Publication date: 2021-08-10

Abstract

The invention relates to a simulation teaching device based on VR technology, on the basis of providing visual simulation by using VR glasses, a simulation platform is driven to transversely slide on a track by a set of driving device, a shell is in a locking state with a bracket in the running process of the device by utilizing the matching relation between a clamping block and a clamping hole, when a bottom plate collides with the track wall, the clamping block is separated from the clamping hole, so that the shell performs the action of rotating around the bracket by utilizing inertia, and the real action of a motorcycle body when the motorcycle is in an accident is simulated.

Description

Simulation teaching device based on VR technique

Technical Field

The invention belongs to the technical field of VR simulation devices, and particularly relates to a simulation teaching device based on VR technology.

Background

The motorcycle is increasingly becoming a travel tool for college students who like pursuing speed and passion because of relatively low price, but the safety guarantee of the motorcycle is relatively low, and the riders are often difficult to recover when a car accident happens at a high speed, so that the riders of the motorcycle can fully know the harm of overspeed of the motorcycle, and the motorcycle travel tool is an effective means for reducing tragedies;

the VR technology is a novel simulation technology, which can establish a virtual scene in a virtual environment, but for people who are placed in the virtual scene, the visual perception brought is very vivid, but only the real situation that the visual perception is not enough to truly show the collision of the motorcycle when the motorcycle is over speed, which can not be well attached to the user, so that on the basis of utilizing the existing VR technology, a simulation device is still needed to improve the truth of the traffic accident simulation, so as to achieve the purpose of safety teaching for motorcycle drivers.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a simulation teaching device based on VR technology, and solves the problem that the dangerous consequence of collision when a motorcycle is overspeed cannot be reflected really only by using VR technology, and the attention of motorcycle drivers cannot be paid enough.

The technical purpose of the invention is realized by the following technical scheme:

the simulation teaching device based on the VR technology comprises a VR helmet and a simulation platform, and is characterized in that the simulation platform comprises a track which is transversely and fixedly connected to the ground, a bottom plate is transversely arranged in the track in a sliding manner, the bottom plate is driven by a set of driving device to meet the requirement that the bottom plate can transversely slide in the track, a vertically arranged support is fixedly connected to the bottom plate, a shell is hinged to the upper end of the support, a chuck is longitudinally matched on a shell hinged shaft in a sliding manner, a round hole is formed in the chuck, the round hole is matched with a cross rod fixedly connected to the inner side wall of the shell in a sliding manner, the chuck can rotate around the hinged shaft of the shell along with the shell while longitudinally sliding on the shell hinged shaft, a first spring which is sleeved on the cross rod is connected between the chuck and the inner side wall of the shell, and a plurality of clamping blocks are fixedly connected to the chuck, the clamping block is matched with a clamping hole arranged on the bracket, so that the clamping block can be matched with the clamping hole to lock the chuck to limit the rotation of the chuck when the chuck is at a specific position, the chuck is connected with a set of control device which can control the chuck to longitudinally slide on the articulated shaft of the shell according to the moving position of the bottom plate, the shell is connected with a set of safety device to protect the rider when the rotation angle of the shell around the hinge shaft is too large, the right end of the shell is fixedly connected with a handlebar, the lower end of the handlebar is connected with a set of counterweight device, the effect of enhancing the inertia force action of the shell by the counterweight device is met, the left end of the shell is hinged with a first pull rod, the first pull rod is in sliding fit with a first rotary drum hinged on the bottom plate, and a second spring sleeved on the first pull rod is arranged in the first rotary drum;

the VR helmet and the simulation platform are electrically connected with a controller installed on the track.

Preferably, drive arrangement include one and install the motor on the terminal surface of track, the motor drive axle on a fixed connection input gear, still include a horizontal fixed connection on the bottom plate with input gear meshing complex rack, satisfy accessible motor drive input gear and rotate and then drive the bottom plate lateral sliding in the track, bottom plate right-hand member lateral sliding connect two parallel arrangement's buffer beam, buffer beam simultaneously with track lateral wall sliding fit, on the buffer beam fixedly connected with arrange first buffer board between bottom plate and the track lateral wall and one arrange the second buffer board outside the track in, first buffer board and bottom plate between be connected with the third spring of cover on the buffer beam, first buffer board and track lateral wall between be connected with the fourth spring of cover on the buffer beam.

Preferably, the control device comprises a group of linkage plates which are symmetrically and longitudinally connected to two sides of the support in a sliding manner, the upper end of each linkage plate is rotatably connected with the corresponding chuck, the linkage plates can drive the chuck to longitudinally slide while the chuck is not hindered from rotating, a first linkage arm and a second linkage arm are fixedly connected to the left end and the right end of each linkage plate, gear teeth are formed in the side walls of the first linkage arm and the second linkage arm, an intermediate gear which is vertically and rotatably connected to the support is arranged between the first linkage arm and the second linkage arm, the intermediate gear is meshed with the first linkage arm and the second linkage arm and is matched with the first linkage arm and the second linkage arm, the two linkage plates can simultaneously slide towards the direction far away from the support or close to the support under the action of the intermediate gear, a connecting rod is fixedly connected to the side end face of each linkage plate, a roller is vertically and rotatably connected to the connecting rod, and an arc panel is vertically and fixedly connected to the side wall of the sliding rail, the cambered plate is transversely provided with a rectangular through hole in sliding fit with the connecting rod, and the outer side surface of the cambered plate with radian is in sliding fit with the roller.

Preferably, the safety device comprises two ratchets which are symmetrically and rotatably connected on the inner side wall of the shell, the ratchet wheel is close to one end surface of the inner side wall of the shell and is coaxially and fixedly connected with a wire barrel, a torsional spring is connected between the wire barrel and a ratchet rotating shaft, a flexible wire is wound on the wire barrel, one end of the flexible wire is fixedly connected on the wire barrel, the other end of the flexible wire is fixedly connected with an arc-shaped plate which is arranged outside the shell, the arc-shaped plate can be matched with a belt buckle which is fixedly connected on the outer side wall of the shell to play a role of fixing shanks and thighs of riders, a pedal plate is fixedly connected below the belt buckle, the safety device further comprises buckle rods which are arranged below the ratchet wheel and hinged on the inner side wall of the shell, one ends of the two buckle rods are provided with convex teeth, the other ends of the convex teeth are fixedly connected through a connecting arm, one ends of the buckle rods without the convex teeth can be matched with an arc-shaped convex surface which is fixedly connected on the upper end of the support, the connecting arm is rotatably connected with a second pull rod, the second pull rod is in sliding fit with a second rotary drum hinged on the support, and only a fifth spring sleeved on the second pull rod is arranged in the second rotary drum.

Preferably, the counterweight device comprises a counterweight frame, the lower end of the counterweight frame is provided with a counterweight block, the upper end of the counterweight block is fixedly connected with a U-shaped plate, the upper end of one side wall of the U-shaped plate is hinged with a clamping plate, a torsional spring is connected between the clamping plate and a hinged shaft thereof, the upper end of the other side wall of the U-shaped plate is transversely provided with a sliding chute which is matched with a clamping pin in a sliding way, the clamping pin is sleeved with a sixth spring arranged in the sliding groove, the clamping pin can be matched with the clamping plate to hang the counterweight frame at the lower end of the handle, a trigger rod is vertically connected in the counterweight frame in a sliding way, a seventh spring arranged in the counterweight frame is sleeved outside the trigger rod, and the counterweight frame also comprises a pinch plate vertically connected on the side wall of the U-shaped plate in a sliding way, the buckle on set up the recess and satisfy the recess and can realize the chucking cardboard with the card foot cooperation, buckle lower extreme and trigger bar fixed connection.

Preferably, the bottom plate is rotatably connected with a plurality of pulleys arranged between the bottom plate and the track.

Preferably, the right end of the track is fixedly connected with two vertically arranged posts, a fan is mounted on each post to simulate the blowing feeling in the running process when the device is started, and a camera used for capturing the moment when the bottom plate collides with the track is mounted at the top end of each post.

Preferably, the VR helmet include a VR glasses and a helmet, VR glasses and helmet between be connected through the belt, satisfy the VR glasses and pass through visual simulation driving scene, helmet accessible belt with the better fixing in wearing personnel's sight the place ahead of VR glasses.

The invention has the beneficial effects that:

1. on the basis of utilizing the existing VR technology, the invention is additionally provided with a simulation device, thereby greatly improving the simulation truth;

2. according to the invention, the shell is in a locking state with the bracket in the running process of the device by utilizing the matching relation between the clamping block and the clamping hole, and when the bottom plate collides with the rail wall, the clamping block is separated from the clamping hole, so that the shell utilizes inertia to make the motion of rotating around the bracket, and the real motion of the motorcycle body is simulated when the motorcycle is in an accident;

3. according to the invention, the counterweight device is arranged on the handlebar, so that the length of the track is shortened, but the rotation amplitude of the device is not reduced, the size of the device is greatly reduced, the mass of the device is reduced, and the cost performance is better;

4. the invention designs a set of safety device, which can be automatically triggered by the action of the device when ensuring that the device has enough sense of reality, so that the safety of riders is ensured while the linkage between the structures of all parts of the device is higher.

Drawings

Fig. 1 is a front view of the present invention.

Fig. 2 is a first perspective view of the present invention.

Fig. 3 is a second perspective view of the present invention.

Fig. 4 is a partial structural view one of the present invention.

Fig. 5 is a partial view of a in the first partial structural view of the present invention.

Fig. 6 is a second partial structural view of the present invention.

FIG. 7 is a partial view of B in partial structural view II of the present invention.

Fig. 8 is a first view of the safety device of the present invention.

Fig. 9 is a second view of the safety device of the present invention.

Fig. 10 is a third view of the safety device of the present invention.

Fig. 11 is a first structural view of the counterweight device of the present invention.

FIG. 12 is a second structural view of the deployment apparatus of the present invention.

Fig. 13 is a third structural view of the deployment apparatus of the present invention.

Fig. 14 is a structural view of a VR headset of the present invention.

In the figure, 1, track; 2. a base plate; 3. a pulley; 4. a support; 5. a housing; 6. a chuck; 7. a circular hole; 8. a cross bar; 9. a first spring; 10. a clamping block; 11. a clamping hole; 12. a handlebar; 13. a first pull rod; 14. a first rotating drum; 15. a second spring; 16. an input gear; 17. a buffer plate; 18. a first buffer plate; 19. a second buffer plate; 20. a third spring; 21. a fourth spring; 22. a linkage plate; 23. a first linkage arm; 24. a second linkage arm; 25. an intermediate gear; 26. a connecting rod; 27. a roller; 28. a cambered plate; 29. a ratchet wheel; 30. a bobbin; 31. an arc-shaped plate; 32. a belt buckle; 33. a foot pedal; 34. a buckle rod; 35. a connecting arm; 36. an arc convex surface; 37. a second pull rod; 38. a second rotating drum; 39. a fifth spring; 40. a counterweight frame; 41. a balancing weight; 42. a "U" shaped plate; 43. clamping a plate; 44. clamping a pin; 45. a sixth spring; 46. buckling the plate; 47. a groove; 48. a trigger lever; 49. a seventh spring; 50. a post rod; 51. a fan; 52. VR glasses; 53. a helmet.

Detailed Description

The following description of the present invention will be made in further detail with reference to the accompanying drawings 1 to 14.

Embodiment one, with reference to fig. 1-7, a simulation teaching device based on VR technology includes a VR helmet and a simulation platform, and is characterized in that the simulation platform includes a rail 1 fixedly connected to the ground and transversely disposed, a bottom plate 2 is transversely slidably disposed in the rail 1, the bottom plate 2 is rotatably connected to a plurality of pulleys 3 engaged with an inner wall of the rail 1, when the bottom plate 2 is disposed in the rail 1, the pulleys 3 can slide on a surface of an inner side wall of the rail 1, so as to reduce a friction force between the bottom plate 2 and the rail 1, the inner side wall of the rail 1 can restrict sliding of the bottom plate 2, so that the bottom plate 2 can only transversely slide along the inner side wall of the rail 1, the bottom plate 2 is driven by a set of driving device, so that the driving device can accelerate the bottom plate 2 to a higher speed in the rail 1 within a set time, the bottom plate 2 is fixedly connected to a vertically disposed bracket 4, the upper end of the bracket 4 is hinged with a shell 5, the shell 5 can rotate on the bracket 4 around a hinged shaft, the hinged shaft of the shell 5 is longitudinally matched with a chuck 6 in a sliding way, the chuck 6 is provided with a round hole 7, the round hole 7 is internally matched with a cross rod 8 fixedly connected on the inner side wall of the shell 5 in a sliding way, the chuck 6 can rotate around the hinged shaft of the shell 5 along with the shell 5 when longitudinally sliding on the hinged shaft of the shell, a first spring 9 sleeved on the cross rod 8 is connected between the chuck 6 and the inner side wall of the shell 5, the first spring 9 is always in a compressed state, the chuck 6 can be pressed close to the bracket 4 under the action of the first spring 9, the end face of the chuck 6, which is close to the bracket 4, is fixedly connected with a plurality of clamping blocks 10, and the clamping holes 11 arranged on the bracket 4 can be matched with the clamping blocks 10, the purpose of limiting the rotation of the shell 5 can be achieved by matching the clamping block 10 with the clamping hole 11 to lock the chuck 6 when the shell 5 is at the initial position, and further the rotation of the shell 5 can be limited by matching the cross rod 8 with the round hole 7, the chuck 6 is connected with a set of control device which can control the chuck 6 to longitudinally slide on the hinge shaft of the shell 5 according to the moving position of the bottom plate 2, the shell 5 is connected with a set of safety device to protect the safety of a rider when the rotation angle of the shell 5 around the hinge shaft is too large, the right end of the shell 5 is fixedly connected with a handlebar 12, the lower end of the handlebar 12 is connected with a set of counterweight device to enhance the effect of inertia force of the shell 5 by the counterweight device, and the shell 5 can still rotate fast after the bottom plate 2 strikes the side wall of the track 1 under the condition that the speed is not very, so that the device can simulate the situation that a person can be driven by inertia force to topple forward after a vehicle collides in a high-speed running state, the left end of the shell 5 is hinged with a first pull rod 13, the first pull rod 13 is in sliding fit with a first rotary drum 14 hinged on the bottom plate 2, the situation that the first pull rod 13 is matched with the bottom surface of the first rotary drum 14 to play a role of supporting the shell 5 when the shell 5 is at an initial position is met, a second spring 15 sleeved on the first pull rod 13 is arranged in the first rotary drum 14, the situation that the first pull rod 13 can be pulled by the shell 5 to slide in the first rotary drum 14 when the shell 5 rotates is met, meanwhile, the sliding of the first pull rod 13 can extrude the second spring 15, the effect of avoiding the overlarge rotating amplitude of the shell 5 under the effects of the first pull rod 13 and the second spring 15 is also achieved after the shell 5 rotates to a limit position, the housing 5 can be brought back to the initial position by the weight of the rider and the housing 5.

In the second embodiment, on the basis of the first embodiment, with reference to fig. 1-4, the driving device includes a motor installed on the upper end surface of the rail, the motor driving shaft is fixedly connected with an input gear 16, the input gear 16 is engaged with a rack transversely and fixedly connected to the base plate 2, so that the input gear 16 can be driven by the motor to rotate, and further the base plate 2 can be driven to transversely slide in the rail 1 by the engagement and cooperation of the input gear 16 and the rack, the motor presets the driving time according to the length of the rack on the base plate 2, the right end of the base plate 2 is transversely and slidably connected with two buffer rods 17 arranged in parallel, the buffer rods 17 are simultaneously and slidably engaged with the side wall of the rail 1, so that the buffer rods 17 can transversely slide along with the base plate 2, the buffer rods 17 are fixedly connected with a first buffer plate 18 arranged between the base plate 2 and the side wall of the rail 1 and a second buffer plate 19 arranged outside the rail 1, the third spring 20 sleeved on the buffer rod 17 is connected between the first buffer plate 18 and the bottom plate 2, the fourth spring 21 sleeved on the buffer rod 17 is connected between the first buffer plate 18 and the side wall of the track 1, the first buffer plate 18 and the second buffer plate 19 can play a role in supporting the two buffer rods 17, so that the buffer rod 17 is prevented from generating overlarge deformation when sliding to further influence the sliding of the bottom plate 2, the third spring 20 and the fourth spring 21 meet the requirement that the third spring 20 is in a compressed state when the bottom plate 2 is at an initial position, namely the third spring 20 bounces the first buffer plate 18 and the bottom plate 2 to ensure that a certain distance is reserved between the first buffer plate 18 and the bottom plate 2, the fourth spring 21 is in a natural state, the requirement that the fourth spring 21 is extruded by the first buffer plate 18 and the side wall of the track 1 along with the sliding of the bottom plate 2 is met, and the fourth spring 21 plays a role in primary buffering, when the bottom plate 2 slides to a certain position, the elasticity of the third spring 20 is the same as that of the fourth spring 21, when the bottom plate 2 slides again, the third spring 20 is extruded, at the moment, secondary buffering is triggered, the preset meshing position of the rack on the bottom plate 2 and the input gear 16 is used as the power-off position of the motor, after the bottom plate 2 collides with the side wall of the track 1 through the first buffer plate 18 and stops, the speed of the bottom plate 2 has a time of decreasing to zero, at the moment, the bottom plate 2 cannot be directly rebounded to be far away from the side wall of the track 1, the preset power is electrified with the motor again when the bottom plate 2 collides with the side wall of the track 1, at the moment, the bottom plate 2 is fixed and stays for a period of time due to the self-locking property of the motor, so that the shell 5 can be conveniently restored to the initial state position.

In a third embodiment, on the basis of the first embodiment, with reference to fig. 1 to 7, the control device includes a group of linkage plates 22 symmetrically and longitudinally slidably connected to two sides of the bracket 4, the upper end of each linkage plate 22 is rotatably connected to the chuck 6, so that when the chuck 6 rotates along with the shell 5, the linkage plates 22 do not interfere with the rotation of the chuck 6, and meanwhile, the chuck 6 also longitudinally slides along the linkage plates 22 on the hinge shaft of the shell 5, the left and right ends of each linkage plate 22 are fixedly connected to a first linkage arm 23 and a second linkage arm 24, the side walls of the first linkage arm 23 and the second linkage arm 24 are provided with gear teeth, an intermediate gear 25 vertically rotatably connected to the bracket 4 is disposed between the first linkage arm 23 and the second linkage arm 24, and the intermediate gear 25 is engaged with the first linkage arm 23 and the second linkage arm 24, so that the two linkage plates 22 can be simultaneously far away from the bracket 4 or close to the bracket 4 under the effect of the intermediate gear 25 The direction is sliding, a connecting rod 26 is fixedly connected to the end face of the linkage plate 22 side, a roller 27 is vertically connected to the connecting rod 26 in a rotating mode, the linkage plate further comprises an arc panel 28 vertically and fixedly connected to the side wall of the track 1, a rectangular through hole in sliding fit with the connecting rod 26 is transversely formed in the arc panel 28, the outer side face of the arc panel 28 with radian is in sliding fit with the roller 27, the linkage plate 22 is connected with the chuck 6 in a rotating mode, the linkage plate 22 is under the elastic action of the first spring 9 along with the chuck 26, the linkage plate 22 exerts longitudinal acting force on the roller 27 through the elastic action of the first spring 9, the roller 27 slides along the end face of the arc panel 28 all the time, the radian face arranged on the arc panel 28 changes the position of the linkage rod 22 on the hinge shaft of the shell 5 through the connecting rod 26, and the chuck 6 is tightly attached to the side face of the support 4 when the base plate 2 is at the initial position in a preset mode, the clamping block 10 is arranged in the clamping hole 11, the rotation of the shell 5 is limited through the matching effect of the clamping block 10 and the clamping hole 11, along with the sliding of the bottom plate 2 in the track 1, the linkage plate 28 is driven by the action connecting rod 26 of the cambered plate 28 to move towards the direction far away from the support 4, at the moment, the chuck 6 also slides along with the linkage plate 28, the clamping block 10 just breaks away from the clamping hole 11 when the bottom plate 2 impacts the side wall of the track 1, the shell 5 is released from the constraint and rotates towards the direction of the movement of the bottom plate 2 under the action of inertia force, and when the bottom plate 2 moves backwards, the chuck 6 also enables the clamping block 10 and the clamping hole 11 to be matched and locked with the shell 5 again under the action of the linkage plate 22.

Fourth embodiment, on the basis of the first embodiment, with reference to fig. 1 to 10, the safety device includes two ratchet wheels 29 symmetrically and rotatably connected to the inner side wall of the housing 5, a bobbin 30 is coaxially and fixedly connected to an end surface of the ratchet wheel 29 close to the inner side wall of the housing 5, the bobbin 30 is rotatable on a hinge shaft of the ratchet wheel 29, a torsion spring is connected between the bobbin 30 and the hinge shaft, a flexible wire is wound on the bobbin 30, one end of the flexible wire is fixedly connected to the bobbin 30, the other end of the flexible wire is fixedly connected to an arc-shaped plate 31 disposed outside the housing 5, the arc-shaped plate 31 can be bound to the thigh of a rider through a belt, the arc-shaped plate 31 can be attached to the side wall of the housing under the elastic action of the torsion spring connected between the bobbin and the hinge shaft when not in use at ordinary times, a pair of pedals 33 is fixedly connected to the housing 5, and a plurality of belt buckles 32 are fixedly connected above the pedals 33, the pedal type bicycle is characterized in that the calf of a rider can be bound through a belt buckle 32 to ensure that the feet of the rider cannot be separated from a pedal 33, the pedal type bicycle further comprises a buckle rod 34 which is arranged below the ratchet wheel 29 and hinged to the inner side wall of the shell 5, one end of each buckle rod 34 is provided with a convex tooth, the other end of each buckle rod is fixedly connected with a connecting arm 35, one end of each buckle rod 34 without the convex tooth can be matched with an arc-shaped convex surface 36 fixedly connected to the upper end of the support 4, the convex tooth is matched with teeth of the ratchet wheel 29 when the buckle rod 34 slides on the arc-shaped convex surface 36 to lock the ratchet wheel 29 to limit the rotation of the ratchet wheel 29, a second pull rod 37 is rotatably connected to the connecting arm 35, the second pull rod 37 is in sliding fit with a second rotary cylinder 38 hinged to the support 4, a fifth spring 39 sleeved on the second pull rod 37 is arranged in the second rotary cylinder 38, and the fifth spring 39 is always in a compression state, namely, under the elastic force of the fifth spring 39, one end of the second pull rod 37 with the convex tooth on the buckle rod 34 The end is ejected away from the ratchet wheel 29 until the buckle bar 34 contacts with the arc convex surface 36, at this time, the ratchet wheel 29 is not limited by the convex tooth on the buckle bar 34 to rotate, the arc plate 31 can move along with the rider, the buckle bar 34 will rotate along with the shell 5 around the hinge shaft of the shell 5 when the shell 5 rotates, but one end of the buckle bar 34 connected with the connecting arm 35 will be blocked by the arc convex surface 36, which will cause the buckle bar 34 to rotate around its hinge shaft when following the shell 5, when the buckle bar 34 rotates to a certain position around its hinge shaft, the convex tooth connected on the buckle bar 34 will be matched with the ratchet wheel 29, when the ratchet wheel 29 is matched with the convex tooth on the buckle bar 34, the other end of the buckle bar 34 will be enough to slide on the arc convex surface 36, at this time, the arc convex surface 36 will not limit the rotation of the buckle bar 34 around the hinge shaft of the shell 5, and at this time, the ratchet wheel 29 is limited to rotate due to the matching effect of the convex tooth connected on the buckle bar 34, when the ratchet wheel 29 wants to rotate due to the stress of the arc-shaped plate 31, the buckling rod 34 is blocked by the arc-shaped convex surface 36, so that the ratchet wheel 29 cannot rotate, and further the bobbin 30 is also restricted to rotate, therefore, the arc-shaped plate 31 cannot be extended any more, and the effect of limiting the thigh of a rider from being far away from the shell 5 is achieved, and the condition that the thigh of the rider is far away from the shell 5 due to the overlarge inertia force is further ensured, so that the purpose of protecting the safety of the rider is achieved.

Fifth embodiment, on the basis of the first embodiment, with reference to fig. 1 to 13, the counterweight device includes a counterweight frame 40, the lower end of the counterweight frame 40 is provided with a counterweight 41, the upper end of which is fixedly connected with a U-shaped plate 42, the upper end of one side wall of the U-shaped plate 42 is hinged with a clamping plate 43, a torsion spring is connected between the clamping plate 43 and the hinged shaft thereof, the clamping plate 43 rotates in the direction of opening the U-shaped plate 42 under the action of the torsion spring in a natural state, the upper end of the other side wall of the U-shaped plate 42 is transversely provided with a sliding chute, the sliding chute is internally and slidably fitted with a clamping foot 44, the clamping foot 44 is sleeved with a sixth spring 45 arranged in the sliding chute, the sixth spring 45 is always in a compressed state, the sixth spring 45 is capable of generating a force that pushes the clamping foot 44 away from the counterweight clamping plate 43, the clamping foot 44 can be fitted with the clamping plate 43 to hang the counterweight frame 40 on the lower end of the handlebar 12, when the weight rack 40 is hung at the lower end of the handlebar 12, the inner side arm of the "U" -shaped plate 42 is in sliding fit with the lower end of the handlebar 12, the weight rack 40 is always in a vertical state under the action of the gravity of the counterweight block 41, a trigger rod 48 in vertical sliding connection is arranged in the weight rack 40, a seventh spring 49 arranged in the weight rack 40 is sleeved outside the trigger rod 48, the weight rack further comprises a buckle plate 46 in vertical sliding connection with the side wall of the "U" -shaped plate 42, a groove 47 is arranged on the buckle plate 46, the lower end of the buckle rod 46 is fixedly connected with the trigger rod 48, the seventh spring 49 is in a compression state under the natural state, the trigger rod 48 is arranged at the lowest position under the elastic force of the seventh spring 49, at this time, the lower end of the trigger rod 48 extends out of the weight rack 40 and contacts the bottom plate 2 before the counterweight block 41, and in this state, the side wall of the buckle plate 46 pushes the clamping foot 44 out of the chute, the locking pin 44 can limit the rotation of the locking plate 43, when the housing 5 rotates, the handlebar 12 fixed at the right end of the housing 5 will also rotate together, the height of the weight rack 40 will decrease, the trigger rod 48 will preferentially contact the bottom plate 2 along with the decrease of the height of the weight rack 40, then the trigger rod 48 will be pushed back into the weight rack 40, the locking plate 46 will also move upward along with the trigger rod 48, the predetermined groove 47 on the locking rod 46 will be located at the locking pin 44 when the trigger rod 48 moves completely into the weight rack 48, at this time, the locking pin 44 will be pushed into the groove 47 under the action of the seventh spring 49, the locking plate 43 will not be restrained by the locking pin 44 any more so that the locking plate 43 is driven by the torsion spring to open the "U" shaped plate 42, at this time, the weight rack 40 will be separated from the handlebar 12, and the handlebar 12 will not be affected by the gravity of the weight rack 40 any more.

Sixth embodiment, on the basis of the first embodiment, with reference to fig. 1 to 14, the vehicle safety protection device is characterized in that two vertically arranged posts 50 are fixedly connected to the right end of the rail, a fan 51 is installed on the posts 50 to simulate a blowing feeling during driving when the device is started, a camera is installed at the top end of each post 50 to capture an action of collision between the bottom plate 2 and the side wall of the rail 1, the VR helmet comprises VR glasses 52 and a helmet 53, the VR glasses 52 are connected with the helmet 53 through a belt to simulate a driving scene through vision by the VR glasses 52, images made in the VR glasses 52 visually sense a feeling of driving a motorcycle by watching the images during safety teaching, and the VR glasses 52 and the camera are connected together on a controller of the device, and when the bottom plate 2 collides with the rail 1, the controller can capture the images by the camera, the image in the VR glasses 52 is replaced with an image in the event of an accident, and the helmet 53 can better fix the VR glasses 52 in front of the line of sight of the wearer through a belt.

When the invention is used, firstly, a VR helmet is worn, a belt for binding shanks and an arc-shaped plate 31 for binding thighs are fastened, safety protection work is well done, then simulation teaching work is carried out, when a rider watches video contents played in VR glasses 52, an electric fan 51 is started to simulate blowing feeling brought when driving a motorcycle, when a movie is played to a preset time point, a motor is started to drive a bottom plate 2 to slide in a track 1, the sliding of the bottom plate 2 also drives a buffer rod 17 to slide together, when secondary buffer is triggered, the motor is powered off to prepare for collision of the bottom plate 2 and the wall of the track 1, when a camera on a post rod 50 captures the bottom plate 2 to collide the track 1, the video in the VR glasses 52 also plays an image of a first visual angle for telling that the motorcycle collides with an object in a running state, when the bottom plate 2 collides with the arm of the track 1, a linkage plate 22 drives a chuck 6 to a position for releasing clamping action on a shell 5, at the moment, the shell 5 is driven by the inertia force to rotate around the hinge shaft because of the sudden reduction of the speed, at the moment, a person riding on the shell 5 can be seen as a whole with the shell 5 and also be acted by the inertia force, at the moment, the person can feel obvious inertia effect, so that the serious consequence of collision of a motorcycle under high-speed running can be more truly simulated, but the quality of the rider and the mass of the shell 5 are different, the rider can move relative to the shell 5, after the shell 5 deflects to a certain degree, the buckle rod 34 can clamp the ratchet 29, so that the arc-shaped plate 31 can not extend any more, the rider can not deviate on the shell 5 to a large degree, certain safety is ensured, the motor is powered again after the bottom plate 2 collides with the side wall of the track 1, at the moment, the bottom plate 2 can not be far away from the side wall of the track 1 and can be limited by the motor by self-locking, after the shell 5 is rotated, the shell 5 returns to the initial state position again due to the gravity of a rider and the action of the first pull rod 13, the clamping block 10 and the clamping hole 11 can be matched at the position, then the motor is started reversely to drive the base plate 2 to move to the initial position, the linkage plate 22 drives the chuck 6 to approach the bracket 4 under the action of the first spring 9 and the connecting rod in the moving process, the clamping blocks 10 and 11 are matched before the base plate 2 does not return to the initial position, the shell 5 is locked until the motor is powered off after the base plate 2 returns to the initial position, and the device is reset.

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. Simulation teaching device based on VR technique, including a VR helmet and a simulation platform, its characterized in that, the simulation platform include a horizontal fixed connection track (1) subaerial, track (1) in horizontal slip set up a bottom plate (2), bottom plate (2) drive by a set of drive arrangement satisfy bottom plate (2) can horizontal slip in track (1), bottom plate (2) on fixedly connected with a vertical support (4) that sets up, support (4) upper end articulated a shell (5), shell (5) articulated shaft on vertical sliding fit chuck (6), chuck (6) on open round hole (7), round hole (7) sliding fit a horizontal pole (8) of fixed connection on shell (5) inside wall, satisfy chuck (6) can be on shell (5) the articulated shaft vertical slip in the time, can be along with shell (5) together around the articulated shaft rotation of shell (5), chuck (6) and shell (5) inside wall between be connected with the cover and establish first spring (9) on horizontal pole (8), chuck (6) on fixedly connected with a plurality of fixture block (10), fixture block (10) with set up card hole (11) cooperation on support (4), fixture block (10) can cooperate locking chuck (6) with card hole (11) and restrict its rotation when satisfying chuck (6) specific position, chuck (6) on be connected with one set of controlling means, satisfy controlling means can be according to the vertical slip of shift position control chuck (6) on shell (5) articulated shaft of bottom plate (2), shell (5) on be connected with one set of safety device and satisfy the effect of protecting the rider's safety when shell (5) are too big around the articulated shaft rotation angle, the right end of the shell (5) is fixedly connected with a handlebar (12), the lower end of the handlebar (12) is connected with a set of counterweight device, the effect of enhancing the inertia force action of the shell (5) through the counterweight device is met, the left end of the shell (5) is hinged with a first pull rod (13), the first pull rod (13) is in sliding fit with a first rotary drum (14) hinged on the bottom plate (2), and a second spring (15) sleeved on the first pull rod (13) is arranged in the first rotary drum (14);

2. The VR technology-based simulation teaching device according to claim 1, wherein the driving device comprises a motor installed on the upper end surface of the track (1), the motor drives a shaft to fixedly connect with an input gear (16), and preferably comprises a rack which is transversely and fixedly connected to the base plate (2) and engaged with the input gear (16), so that the motor can drive the input gear (16) to rotate and further drive the base plate (2) to transversely slide in the track (1), the right end of the base plate (2) is transversely and slidably connected with two parallel buffer rods (17), the buffer rods (17) are simultaneously slidably engaged with the side walls of the track (1), the buffer rods (17) are fixedly connected with a first buffer plate (18) arranged between the base plate (2) and the side walls of the track (1) and a second buffer plate (19) arranged outside the track (1), first buffer board (18) and bottom plate (2) between be connected with third spring (20) that the cover was established on buffer rod (17), first buffer board (18) and track (1) lateral wall between be connected with fourth spring (21) that the cover was established on buffer rod (17).

3. The VR technology-based simulation teaching device according to claim 1, wherein the control device comprises a group of linkage plates (22) which are symmetrically and longitudinally slidably connected to two sides of the support (4), the upper end of each linkage plate (22) is rotatably connected with the corresponding chuck (6) so that the linkage plates (22) can slide longitudinally along the driven chuck (6) and do not interfere with the rotation of the corresponding chuck (6), a first linkage arm (23) and a second linkage arm (24) are fixedly connected to the left end and the right end of each linkage plate (22), gear teeth are formed in the side walls of the first linkage arm (23) and the second linkage arm (24), an intermediate gear (25) which is vertically and rotatably connected to the support (4) is arranged between the first linkage arm (23) and the second linkage arm (24), and the intermediate gear (25) is engaged with the first linkage arm (23) and the second linkage arm (24), the linkage device is characterized in that the linkage plates (22) can slide in the direction away from the support (4) or close to the support (4) simultaneously under the action of the intermediate gear (25), a connecting rod (26) is fixedly connected to the side end face of each linkage plate (22), the connecting rod (26) is vertically connected with a roller (27) in a rotating mode, the linkage device further comprises an arc panel (28) which is fixedly connected to the side wall of the sliding rail, a rectangular through hole in sliding fit with the connecting rod (26) is formed in the arc panel (28) in the transverse direction, and the outer side face of each arc panel (28) with radian is in sliding fit with the roller (27).

4. The VR based simulation teaching device of claim 1, wherein the safety device includes two ratchets (29) symmetrically and rotatably connected to the inner side wall of the housing (5), a bobbin (30) is coaxially and fixedly connected to an end surface of the ratchets (29) close to the inner side wall of the housing (5), a torsion spring is connected between the bobbin (30) and the rotation shaft of the ratchets (29), a flexible wire is wound around the bobbin (30), one end of the flexible wire is fixedly connected to the bobbin (30) and the other end of the flexible wire is fixedly connected to an arc-shaped plate (31) disposed outside the housing (5), the arc-shaped plate (31) can cooperate with a belt buckle (32) fixedly connected to the outer side wall of the housing (5) to fix the shank and the thigh of a person, a pedal plate (33) is fixedly connected to the lower side of the belt buckle (32), also comprises a buckle rod (34) which is arranged below the ratchet wheel (29) and is hinged on the inner side wall of the shell (5), one end of each of the two buckle rods (34) is respectively provided with a convex tooth, the other end is fixedly connected through a connecting arm (35), one end of the buckle rod (34) without the convex teeth can be matched with the arc convex surface (36) fixedly connected with the upper end of the bracket (4), so that the convex teeth can be matched with the teeth of the ratchet wheel (29) to lock the ratchet wheel (29) to limit the rotation of the ratchet wheel (29) when the buckle rod (34) slides on the arc convex surface (36), the connecting arm (35) is rotatably connected with a second pull rod (37), the second pull rod (37) is in sliding fit with a second rotating drum (38) hinged on the bracket (4), the second rotary drum (38) is internally provided with a fifth spring (39) sleeved on the second pull rod (37).

5. The VR based simulation teaching device according to claim 1, wherein the weight device comprises a weight frame (40), the lower end of the weight frame (40) is provided with a weight block (41), the upper end of the weight block (41) is fixedly connected with a U-shaped plate (42), the upper end of one side wall of the U-shaped plate (42) is hinged with a clamping plate (43), a torsion spring is connected between the clamping plate (43) and the hinged shaft of the U-shaped plate, the upper end of the other side wall of the U-shaped plate (42) is transversely provided with a sliding groove, the sliding groove is in sliding fit with a clamping pin (44), the clamping pin (44) is sleeved with a sixth spring (45) arranged in the sliding groove, the clamping pin (44) can be matched with the clamping plate (43) to hang the weight frame (40) at the lower end of the handle, the weight frame (40) is vertically and slidably connected with a trigger rod (48), the trigger rod (48) is sleeved with a seventh spring (49) arranged in the weight frame (40), still include buckle (46) of a vertical sliding connection on "U" shaped plate (42) lateral wall, buckle (46) on seted up recess (47) and satisfied recess (47) can realize chucking cardboard (43) with card foot (44) cooperation, buckle (46) lower extreme and trigger bar (48) fixed connection.

6. The VR based simulation teaching device of claim 1, wherein the base plate (2) is rotatably connected with a plurality of pulleys (3) arranged between the base plate (2) and the rail (1).

7. The VR technology-based simulation teaching device according to claim 1, wherein two vertically arranged posts (50) are fixedly connected to the right end of the track (1), a fan (51) is mounted on each post (50) to simulate the blowing feeling during driving when the device is started, and a camera for capturing the collision time of the base plate (2) and the track (1) is mounted at the top end of each post (50).

8. The VR technology based simulation teaching device of claim 1, wherein the VR helmet (53) comprises VR glasses (52) and a helmet (53), the VR glasses (52) are connected with the helmet (53) through a belt, so that the VR glasses (52) can visually simulate a driving scene, and the helmet (53) can better fix the VR glasses (52) in front of the line of sight of a wearer through the belt.