CN111035939B - Seesaw roller coaster - Google Patents

Abstract

The present invention discloses a seesaw roller coaster, comprising: a platform, a track, a support and a vehicle body; the platform is arranged at one end of the track, the vehicle body is arranged on the track, the middle part of the track is hinged to the support, and stoppers are arranged at both ends of the track; a telescopic rod is arranged between the support and the track, one end of the telescopic rod is hinged to the support, and the other end of the telescopic rod is hinged to the track, so that the track can swing around the support. When the telescopic rod is extended or retracted, the track of the roller coaster can swing up and down around the support below it, so that the vehicle body on it slides back and forth along the track, and no lifting device such as a chain is required to lift the vehicle body, thereby avoiding the generation of noise and reducing the floor space occupied by the roller coaster.

Description

Teeterboard roller coaster

Technical Field

The disclosure relates to the technical field of mechanical equipment, in particular to a teeterboard roller coaster.

Background

Roller coasters, also known as "flying skis," are a motor-driven amusement facility, commonly found in amusement parks and theme parks, and have the name of "king of amusement machines". The sense of happiness that the wind is released to the electric brake and has no danger can lead a lot of people to get in the fan. In the prior art, a conventional roller coaster generally adopts a chain lifting mode to lift the roller coaster body to the highest point, dives downwards with inertia, enters a series of annular structures for increasing the stimulating experience of passengers, transits to a horizontal track to slide, passes through a braking device and finally stably stops at a platform. The vehicle mainly comprises a vehicle body, a driving track, an upright post, a traction system, a braking system, an electric system and the like. The car body is divided into a head car, a middle car and a tail car, and each car is connected through a connector. The trolley wheel system consists of a bearing wheel, a side guide wheel and an inverted wheel, so that the trolley can be attached to the track safely and stably when running to any angle. The bearing wheels play a role in supporting the whole frame in the normal running process of the roller coaster; the side guide wheels play a role in guiding the vehicle body in the processes of turning the vehicle body and the like; the reverse gear plays a role in control and maintenance in the running process of the vehicle body in a reverse suspension posture. The roller coaster track is made of two parallel seamless steel pipes, and is supported by sleeper and upright posts. The track full track is usually designed as a straight track, a circular arc track or a spiral track, etc.

At present, the traditional roller coasters are commonly found in amusement parks and theme parks, and in recent years, along with the improvement of the living standard of people, indoor roller coasters are also arranged in shopping malls and shopping malls. However, in either outdoor or indoor roller coasters, a chain lifting mode is generally adopted, so that the roller coaster has large noise and large occupied area, and generally runs on a continuous track from the beginning to the end.

Disclosure of Invention

The invention provides a teeterboard type roller coaster, which aims to solve the problems of large noise and large occupied area of the conventional roller coaster.

In order to achieve the above object, the present invention provides a teeterboard roller coaster comprising: platform, track, support and car body; the platform is arranged at one end of the rail, the vehicle body is arranged on the rail, the middle part of the rail is hinged with the support, and the two ends of the rail are also provided with stop devices; and a telescopic rod is further arranged between the support and the rail, one end of the telescopic rod is hinged with the support, and the other end of the telescopic rod is hinged with the rail, so that the rail can swing around the support.

Further, a plurality of brake plates are arranged at two end parts of the rail, and a permanent magnet is arranged at the bottom of the vehicle body; or a plurality of permanent magnets are arranged at two end parts of the track, and a brake plate is arranged at the bottom of the car body.

Further, lifting devices are arranged at the two end parts of the rail; when the permanent magnet is arranged at the bottom of the vehicle body, at least one braking plate is arranged on the lifting device; when the brake plate is arranged at the bottom of the vehicle body, at least one permanent magnet is arranged on the lifting device.

Further, the lifting device includes: a lifting platform on which the permanent magnet or the brake plate is mounted; the base is fixedly connected with the track; the telescopic device is fixedly connected with the track; the middle part of the connecting rod is hinged with the base, the upper end of the connecting rod is hinged with the lifting platform, and the lower end of the connecting rod is hinged with the telescopic end of the telescopic device.

Further, the station includes: the device comprises a fixed platform, a movable platform, a maintenance platform and a lifting rod; the movable platform is hinged with the fixed platform, and the overhaul platform is positioned below the movable platform; the lower end of the lifting rod is hinged with the overhaul platform, and the upper end of the lifting rod is hinged with the movable platform.

Further, a position detecting element is provided on the fixed platform for detecting the position of the movable platform.

Further, the position detecting element is a proximity switch, the proximity switch comprises an upper sensing area and a lower sensing area, a sensing plate is arranged at the end part of the movable platform, and the sensing plate is located between the upper sensing area and the lower sensing area.

Further, a rail swing bracket is further arranged between the rail and the support, the lower end of the rail swing bracket is hinged with the support, and the upper end of the rail swing bracket is fixedly connected with the rail.

Further, the vehicle body comprises a vehicle frame, a plurality of groups of wheel trains are arranged at the lower part of the vehicle frame, and the wheel trains are in sliding fit with the rails so that the vehicle body can travel along the rails; the upper part of the frame is provided with a plurality of seats, and the seats are provided with a safety arm pressing device.

Further, it is characterized in that the stop means is a hydraulic buffer and/or a mechanical stop plate.

According to the above description and practice, the seesaw roller coaster disclosed by the invention can enable the track to swing up and down around the support by the hinged cooperation of the track and the support and the aid of the telescopic rod, so that the roller coaster body on the track can slide back and forth along the track, and passengers experience the speed and the sense of pleasure. In addition, the vehicle body can swing up and down on the track according to a certain angle, so that the weightlessness stimulation can be brought to passengers, and the entertainment of the roller coaster is improved. The teeterboard roller coaster has simple structure and small occupied area, does not generate noise in the operation process, and can be installed and used in various occasions.

Drawings

Fig. 1 is a schematic view of a see-saw roller coaster according to an embodiment of the present invention.

Fig. 2 is a schematic structural view of a vehicle body according to an embodiment of the present invention.

Fig. 3 is a schematic view of the connection of the support and the rail according to an embodiment of the present invention.

Fig. 4 is an enlarged view of a portion a in fig. 3.

Fig. 5 is an enlarged view of a portion B in fig. 3.

Fig. 6 is a schematic structural view of a lifting device according to an embodiment of the present invention.

Fig. 7 is a schematic structural diagram of a station according to an embodiment of the present invention.

Fig. 8 is an enlarged view of a portion C in fig. 7.

Fig. 9 is a top view of a docking station according to an embodiment of the present invention.

Fig. 10 is a schematic view showing the up-and-down swing of a see-saw roller coaster according to an embodiment of the present invention.

In the figure:

1. The vehicle comprises a vehicle body, 11, a vehicle frame, 12, a wheel train, 13, a seat, 14 and a safety pressing arm;

2. The track, 21, permanent magnet, 22, brake plate;

3. A support;

4. Platform, 41, fixed platform, 42, movable platform, 43, maintenance platform, 44, fixed axle, 45, lifting rod, 46, position detecting element, 461, upper sensing area, 462, lower sensing area, 47. Sensing plate;

5. A telescopic rod;

6. A stop device 61, a hydraulic buffer 62 and a mechanical stop plate;

7. lifting device 74, base 75, telescoping device 76, connecting rod 77, pull rod 78, lifting platform;

8. The rail swings the support.

Detailed Description

Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments may be embodied in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

Furthermore, the drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus a repetitive description thereof will be omitted. In the present disclosure, the terms "comprising," "including," "having," "disposed in" and "having" are intended to be open-ended and mean that there may be additional elements/components/etc. in addition to the listed elements/components/etc.; the terms "first," "second," and the like, are used merely as labels, and do not limit the number or order of their objects; the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like refer to an orientation or positional relationship based on that shown in the drawings, merely for convenience of description and to simplify the description, and do not denote or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the invention.

Unless specifically stated or limited otherwise, the terms "mounted," "connected," and "coupled" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

In an exemplary embodiment of the present disclosure, a teeterboard roller coaster is provided. Fig. 1 is a schematic view of a see-saw roller coaster according to an embodiment of the present invention. Fig. 2 is a schematic structural view of a vehicle body according to an embodiment of the present invention. Fig. 3 is a schematic view of the connection of the support and the rail according to an embodiment of the present invention.

As shown in fig. 1 and 3, the see-saw roller coaster of the present embodiment mainly includes: a vehicle body 1, a track 2, a support 3 and a platform 4. The vehicle body 1 is arranged on the track 2 and can walk along the track 2, and stop devices 6 are arranged at two ends of the track 2 to prevent the vehicle body 1 from sliding out of the track 2. A platform 4 is provided at one end of the track 2 to facilitate entry of passengers into the vehicle body 1. The middle part of the track 2 is hinged with the support 3. The lower ends of the support 3 and the platform 4 are fixedly connected to the foundation. The track 2 is of a box structure and is formed by welding H-shaped steel and steel plates, the length of the track 2 is 27 meters, and the length of the track 2 can be changed according to actual environments.

As shown in fig. 2, the vehicle body 1 includes a frame 11, and the frame 11 is formed by welding rectangular square tubes and steel plates. Four sets of gear trains 12 are mounted on the lower part of the frame 11, wherein the gear trains 12 are in sliding fit with the rails 2, so that the vehicle body 1 runs along the rails 2. Eight seats 13 are provided on the upper part of the frame 11, and a safety pressing arm 14 for locking a safety belt and a ratchet pawl is mounted on each seat 13 to firmly lock the passenger on the seat 13. The permanent magnet 21 is fixedly mounted on the frame 11 at the bottom of the vehicle body 1. Each wheel train 12 is composed of a road wheel, a side guide wheel and an inverted gear. The wheel train 12 is connected to the frame 11 through bolts, the travelling wheels, the side guide wheels and the reverse hanging wheels can be adjusted to be eccentric, and the wheel train 12 of the vehicle body can be safely attached to the track 2 or leave enough gaps when the vehicle runs to any position, so that the vehicle body 1 can stably move. Decorative plates made of glass fiber reinforced plastic are also arranged at the head and tail of the vehicle body 1.

As shown in fig. 1 and 3, a telescopic rod 5 is further arranged between the support 3 and the rail 2, the lower end of the telescopic rod 5 is hinged with the support 3, the upper end of the telescopic rod 5 is hinged with the bottom of the rail 2, and the rail 2 can swing up and down around the support 3 when the telescopic rod 5 stretches. In this embodiment, the telescopic rods 5 are provided in total in two, respectively on the side of the support close to the platform 4 and on the side remote from the platform 4. When the telescopic rod 5 near the platform 4 side is extended and the telescopic rod 5 far away from the platform 4 side is shortened, one end of the track 2 near the platform 4 is lifted upwards, one end of the track 2 far away from the platform 4 is lowered downwards, the vehicle body 1 on the track slides along the track 2 to the right side, namely, the side far away from the platform 4, and finally, the vehicle body stops at the right end part of the track 2 under the blocking of the stop device 6. At this time, the telescopic rod 5 at the side far from the platform 4 can be extended, and at the same time, the telescopic rod 5 at the side close to the platform 4 can be shortened, so that the right end of the rail 2 can swing upwards, and when the rail 2 is inclined to the left side, the vehicle body 1 can slide to the platform side along the rail 2 and stop at the left end of the rail 2 under the blocking of the stop device 6. The vehicle body 1 can slide back and forth on the track 2 by the back and forth circulation, so that passengers can experience the fun of sliding the roller coaster.

A rail swing bracket 8 is also arranged between the rail 2 and the support 3, the rail swing bracket 8 is an inverted triangle bracket, the upper end of the rail swing bracket is fixedly connected with the bottom of the rail 2, and the lower end of the rail swing bracket is hinged with the support 3. The track swing bracket 8 increases the distance between the track 2 and the foundation, enabling it to swing around the support 3 to a greater extent. In this embodiment, the downward swing of the end of the track 2 away from the platform 4 is greater than the upward swing thereof, so that the vehicle body 1 can reach a greater speed when it is slid down to the right, and conversely, the vehicle body 1 can be made to slide to the left at a lesser speed when it is slid to the platform 4. Specifically, the maximum angle at which the end of the rail 2 remote from the platform 4 swings downward is set to 35 °, and the maximum angle at which the end of the rail 2 remote from the platform 4 swings upward is set to 10 °.

Fig. 3 is a schematic view of the connection of the support and the rail according to an embodiment of the present invention. Fig. 4 is an enlarged view of a portion a in fig. 3. Fig. 5 is an enlarged view of a portion B in fig. 3. Wherein the A part is one end of the track 2 close to the platform 4, and the B part is one end of the track 2 far away from the platform 4.

The stopper 6 may be a hydraulic damper 61 or a mechanical stopper 62. As shown in fig. 4 and 5, in this embodiment, the end of the rail 2 near the platform 4 is provided with a hydraulic damper 61, and the end of the rail 2 remote from the platform 4 is provided with a hydraulic damper 61 and a mechanical stopper 62. The mechanical stop plate 62 is a bracket fixedly connected to the track 2, and an elastic anti-collision block is mounted at one end of the mechanical stop plate, which is close to the vehicle body 1, so as to buffer collision between the vehicle body 1 and the mechanical stop plate 62. The end of the hydraulic damper 61 that receives the striker is close to the vehicle body 1.

In order to smoothly brake the vehicle body 1 on the track 2, linear permanent magnet eddy current brake devices including permanent magnets 21 and brake plates 22, which may be copper or copper-aluminum alloy, are further provided at both ends of the track 2. Wherein a brake plate 22 is provided at the bottom of the rail and a permanent magnet 21 is mounted at the lower part of the vehicle body 1. When the two are brought close together the brake plate 22 cuts the induction lines, which will generate eddy currents in the metal, which will generate a magnetic field against the movement of the vehicle body 1. The braking force thus generated is proportional to the speed of the roller coaster body 1. Naturally, the brake plate 22 may be attached to the lower part of the vehicle body, and the permanent magnet 21 may be attached to the rail, thereby producing the same braking effect.

As shown in fig. 4 and 5, in this embodiment, two brake plates 22 are installed at the end of the rail 2 near the platform 4, and four brake plates 22 are installed at the end of the rail 2 far from the platform 4. In order to reduce the force between the vehicle body 1 and the brake plate 22 when it is started, a lifting device 7 is also provided between the brake plate 22 and the rail 2. As shown in fig. 6, the lifting device 7 includes: base 74, telescoping device 75, connecting rod 76, pull rod 77 and lift platform 78. The base 74 is disposed at the middle bottom of the track 2 and fixedly connected with the track 2. The telescoping device 75 is also disposed at the middle bottom of the rail 72. The middle part of connecting rod 76 articulates in the upper portion of base 74, and the upper end of connecting rod 76 articulates with the bottom of lift platform 78, and the lower extreme of connecting rod 76 articulates with the flexible end of telescoping device 75. When the telescopic device 75 is extended outwards to the set limit value, the height of the lifting platform 78 is the lowest, and at this time, the distance between the brake plate 22 arranged on the lifting platform 78 and the permanent magnet 21 on the vehicle body 1 is the farthest, so that no braking effect is generated between the brake plate and the permanent magnet, and the vehicle body 1 can pass through the track 2 smoothly. When the telescopic device 75 is shortened, the lifting platform 78 moves upwards under the drive of the connecting rod 76, so that the distance between the brake plate 22 and the permanent magnet 21 is shortened, and the braking effect between the brake plate 22 and the permanent magnet 21 is improved, as shown in fig. 6, and at the moment, the lifting platform 78 is lifted, so that the vehicle body 1 on the track 2 can be effectively braked. Wherein the telescopic device 75 is arranged such that the lifting platform 78 is just at the very top when the movable end of the telescopic device 75 shortens to a limit value. In this embodiment, the telescoping direction of the telescoping device 75 is the same as the length direction of the track 2.

In order to improve the stability of the lifting platform 78, two bases 74 are arranged below the lifting platform 78 along the length direction of the track 2, connecting rods 76 are hinged to the bases 74, and the lower ends of the two connecting rods 76 are connected together through a pull rod 77, so that the two connecting rods 76 can synchronously move. Specifically, in this embodiment, the longitudinal direction of the tie rod 77 is parallel to the telescoping direction of the telescoping device 75. The length direction of the tie rod 77 is the same as the length direction of the rail 2.

In order to ensure the safety of the linear permanent magnet eddy current brake device, a compression spring is installed in the telescopic device 75, and the telescopic device 75 comprises a fixed cylinder and a movable rod arranged in the fixed cylinder. The compression spring is arranged between the movable rod and the fixed cylinder, one end of the compression spring is connected with one end of the fixed cylinder, which is close to the movable rod, and the other end of the compression spring is connected with one end of the movable rod, which is positioned in the fixed cylinder. When the telescopic device 75 is extended, the compression spring inside it is compressed, and the linear permanent magnet eddy current brake is in a non-braked state. If the power source of the telescopic device fails and cannot be contracted, the movable end of the telescopic device is retracted by the compression spring, so that the lifting platform is lifted, and a braking effect is generated. In this embodiment, the telescopic device 75 is a cylinder, and a known telescopic device such as a hydraulic cylinder or an electric telescopic rod can be used.

In this embodiment, the left side of the rail 2 is provided with one of the above-mentioned lifting devices 7, where the brake plate 22 on the side close to the platform 4 of the two brake plates 22 is fixedly connected to the rail 2, and the other is provided on the lifting platform 78 of the lifting device 7. The right side of the rail 2 is provided with three lifting devices 7 as described above, and three brake plates 22 near one side of the platform 4 are mounted on the lifting devices 7, the remaining one being fixedly connected to the rail 2.

Fig. 7 is a schematic structural diagram of a station according to an embodiment of the present invention. Fig. 8 is an enlarged view of a portion C in fig. 7. Fig. 9 is a top view of a docking station according to an embodiment of the present invention.

As shown in fig. 7 to 9, the station 4 includes: a fixed station 41, a movable station 42, a service station 43 and a lifting rod 45. Wherein a fixed shaft 44 is installed at one end of the fixed station 41; one end of the movable platform 42 is sleeved on the fixed shaft 44 through a bearing, so that the movable platform is hinged with the fixed platform 41. The maintenance platform 43 is disposed below the movable platform 42, and is connected to the movable platform by a lifting rod 45. The lower parts of the fixed station 41 and the service station 43 are fixedly connected to the foundation. The lower end of the lifting rod 45 is hinged with the overhaul platform 43, and the upper end of the lifting rod 45 is hinged with the movable platform 42. When a passenger needs to climb on the vehicle body 1, the lifting rod 45 is lifted to drive the movable platform 42 at the upper end to rotate upwards around the fixed shaft 44, so that the movable platform 42 approaches the vehicle body 1 and is parallel to the vehicle body 1; when the vehicle body 1 needs to move, the lifting rod 45 is lowered to drive the movable platform 42 at the upper end to rotate downwards around the fixed shaft 44, so that the movable platform 42 does not interfere with the operation of the vehicle body 1.

In this embodiment, a position detecting element 46 is installed on the fixed station 41 at a position near the movable station 42 for detecting the position of the movable station 42. Specifically, the position detecting element 46 is a proximity switch having an upper sensing area 461 and a lower sensing area 462. A sensing plate 47 is provided at the end of the movable platform 42 hinged to the fixed shaft 44, and the sensing plate 47 is located between the upper sensing area and the lower sensing area in a normal state. When the movable platform 42 rotates downward, the sensing plate 47 rotates upward around the fixed shaft 44, and when the sensing plate 47 reaches the upper sensing area of the proximity switch, the proximity switch sends an instruction to the control system of the lifting rod 45 to stop the lifting rod 45 from descending, and at this time, the movable platform 42 reaches the limit position of the downward rotation. When the movable platform 42 rotates upward, the sensing plate 47 rotates downward around the fixed shaft 44, and when the sensing plate 47 reaches the lower sensing area of the proximity switch, the proximity switch sends an instruction to the control system of the lifting rod 45 to stop the lifting of the lifting rod 45, and at this time, the movable platform 42 reaches the limit position of upward rotation.

In addition, in this embodiment, the fixed station 41, the movable station 42, and the maintenance station 43 are all frame-type structures. The lifting rod 45 can be a hydraulic lifting rod or an electric lifting rod, and the lifting rod can be controlled to ascend or descend by a control system.

The operation mode is as follows:

The teeterboard type roller coaster mainly comprises two basic movements, wherein one is that a track 2 swings around a support 3, the swing angle range is-35 degrees to +10 degrees, and the other is that a car body 1 runs back and forth on the track 2 by means of dead weight.

As shown in fig. 10, first, the track 2 swings to an angle of 10 °, that is, the right end of the track 2 is upward and forms an angle of 10 ° with the horizontal plane, at this time, the vehicle body 1 is stopped at the movable platform 42, the movable platform 42 is lifted and swings to an angle of 10 °, and the passenger gets on the movable platform 42. After the passenger is in place, the movable platform 42 is lowered, driven by the two telescopic rods 5 close to and far from the platform, to swing the track 2 to an angle of-35 °, i.e. the right end of the track 2 is facing downwards and at an angle of 35 ° to the horizontal. The car body 1 is driven by gravitational potential energy to dive downwards along the inclined track 2. When the car body 1 dives to approach the right end of the track 2, the car body is decelerated by a linear permanent magnet eddy current braking device on the track 2 and braked by a hydraulic buffer and a mechanical stop plate which are far away from the outer side of the platform side track 2, and is stopped at the right end of the track 2. The track 2 is then swung between-35 deg. and-2 deg. driven by two telescopic rods 5 close to and far from the platform, the car body 1 is fluctuated up and down along with the track 2, and passengers experience a surprise stimulus of overweight and weightlessness. The track 2 swings between-35 degrees and 10 degrees like a teeterboard under the drive of two telescopic rods 5 which are close to and far away from the platform, and the car body 1 is driven by gravitational potential energy to reciprocally dive forwards and backwards along the inclined track and is decelerated by linear permanent magnet eddy current braking devices at two ends. At the end, the track 2 swings to an angle of 10 °, the vehicle body 1 moves by self weight and is braked by a hydraulic buffer near the platform after being decelerated by a linear permanent magnet eddy current brake device near the platform 4, and finally stops at the movable platform 42. Finally, the movable platform 42 is lifted up, swings to an angle of 10 °, and passengers get on and off the movable platform 42.

Compared with the traditional roller coaster, the volume of the teeterboard roller coaster is greatly reduced, and the teeterboard roller coaster can be arranged on an indoor or outdoor place. In addition, in order to increase the frightening and stimulating feeling when passengers take the teeterboard type roller coaster, the teeterboard type roller coaster can be arranged at the top end or the cliff edge of a high-rise building, so that one end, far away from a platform, of the track of the teeterboard type roller coaster is in a suspended state, and the game items are more frightened and stimulated.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any adaptations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

Claims (7)

1. A seesaw roller coaster, characterized in that it comprises: a platform, a track, a support and a vehicle body; The platform is arranged at one end of the track, the vehicle body is arranged on the track, the middle part of the track is hinged to the support, and stop devices are arranged at both ends of the track; A telescopic rod is also provided between the support and the track, one end of the telescopic rod is hinged to the support, and the other end of the telescopic rod is hinged to the track, so that the track can swing around the support; A plurality of brake plates are arranged at the two ends of the track, and a permanent magnet is arranged at the bottom of the vehicle body; or a plurality of permanent magnets are arranged at the two ends of the track, and a brake plate is arranged at the bottom of the vehicle body; A lifting device is also provided at both ends of the track; when the permanent magnet is provided at the bottom of the vehicle body, at least one of the brake plates is installed on the lifting device; when the brake plate is provided at the bottom of the vehicle body, at least one of the permanent magnets is installed on the lifting device; The lifting device comprises: a lifting platform, on which the permanent magnet or the brake plate is installed; a base, fixedly connected to the track; a telescopic device, fixedly connected to the track; a connecting rod, the middle part of which is hinged to the base, the upper end is hinged to the lifting platform, and the lower end is hinged to the telescopic end of the telescopic device; two bases are arranged below the lifting platform along the long direction of the track, and the connecting rods are hinged on the bases, and the lower ends of the two connecting rods are connected together by a pull rod, so that the two connecting rods can move synchronously; the long direction of the pull rod is parallel to the telescopic direction of the telescopic device; A compression spring is installed in the telescopic device, and the telescopic device includes a fixed tube and a movable rod arranged in the fixed tube. The compression spring is arranged between the movable rod and the fixed tube. One end of the compression spring is connected to an end of the fixed tube close to the movable rod, and the other end is connected to an end of the movable rod located inside the fixed tube. When the telescopic device is extended, the compression spring is compressed; When the movable end of the telescopic device is shortened to a limit value, the lifting platform is at the topmost position; when the telescopic device is extended outward to a set limit value, the height of the lifting platform is the lowest. 2. The seesaw roller coaster according to claim 1, wherein the platform comprises: Fixed platforms, movable platforms, maintenance platforms and lifting masts; The movable platform is hinged to the fixed platform, and the inspection platform is located below the movable platform; The lower end of the lifting rod is hinged to the maintenance platform, and the upper end of the lifting rod is hinged to the movable platform. 3. The seesaw roller coaster as claimed in claim 2, characterized in that a position detection element is provided on the fixed platform for detecting the position of the movable platform. 4. The seesaw roller coaster as described in claim 3 is characterized in that the position detection element is a proximity switch, the proximity switch includes an upper sensing area and a lower sensing area, and a sensing plate is provided at the end of the movable platform, and the sensing plate is located between the upper sensing area and the lower sensing area. 5. The seesaw roller coaster as described in claim 1 is characterized in that a track swing bracket is also provided between the track and the support, the lower end of the track swing bracket is hinged to the support, and the upper end of the track swing bracket is fixedly connected to the track. 6. The seesaw roller coaster as described in claim 1 is characterized in that the vehicle body includes a frame, and a plurality of wheel trains are installed at the lower part of the frame, and the wheel trains are slidably matched with the track so that the vehicle body moves along the track; a plurality of seats are arranged at the upper part of the frame, and a safety pressure arm device is installed on the seats. 7. The seesaw roller coaster according to any one of claims 1 to 6, characterized in that the stop device is an oil pressure buffer and/or a mechanical stop plate.