CN210554781U - Suspended type air rail car capable of vertically lifting - Google Patents

Abstract

The utility model discloses a suspension type aerial rail car capable of vertically lifting, which comprises a car body capable of being suspended on an aerial rail and walking along the rail, wherein the car body comprises a box body and a top cover positioned at the top of the box body, the top cover is used for being connected with the rail in a suspension manner, the front end or the rear end of the top cover is provided with a mounting substrate connected with the top cover, a winding mechanism is arranged on the mounting substrate, the top cover is detachably connected with the box body through a plurality of main suspension cables, and the top cover can be in seamless contact with the box body; the utility model discloses but suspension type vertically lift's aerial railcar's box and top cap pass through main hoist cable detachable and connect, just, because hoist mechanism sets up on the mounting substrate of top cap one end for box and top cap seamless contact, thereby the at utmost reduces the distance between box and the track, saves the hang space, consequently can effectively reduce the safe distance between track and the ground, for upper and lower double-deck track and at current overpass, tunnel inner construction track etc. reduce and implement the degree of difficulty.

Description

Suspended type air rail car capable of vertically lifting

Technical Field

The utility model relates to a railcar technical field especially relates to a but suspension type vertically lift's railcar.

Background

An aerial rail car (an empty rail for short) is a suspended type monorail traffic system, and a rail is arranged above the car and supported in the air by steel or cement upright posts. The air rail traffic system moves ground traffic to the air, so that the urban traffic problem can be relieved on the basis of not expanding the existing urban highway facilities; and because the track is only moved into the air, rather than the whole road surface is lifted into the air like an overhead light rail or a riding monorail, the defects of other track traffic systems are overcome, and the track has a plurality of outstanding characteristics and advantages in the aspects of construction and operation. At present, a traditional air rail traffic system comprises components such as a track, a supporting upright post, an air rail vehicle body, a traveling mechanism and a control system, wherein the track of the system is a steel box beam, and the traveling mechanism drives the air rail vehicle body to travel along the track.

Regarding the scheme of getting on or off the people of aerial railcar, there is the mode of adopting the pontoon of setting up and being connected with the bottom surface at present, also there is the mode of adopting the vertical lift automobile body, however in the scheme of vertical lift automobile body, mostly set up hoisting mechanism at the top of automobile body, must increase the spatial distance between automobile body and the track like this, just also mean increasing the safe distance between track and the bottom surface, establish the circumstances such as upper and lower double-deck track and at current overpass, tunnel inside construction track, can improve and implement the degree of difficulty, leave the space between automobile body and the track simultaneously, still can increase the range of swaying of box in the walking process.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the technical problem not enough and providing a but aerial railcar of suspension type vertical lift that can save suspension space to the utmost extent.

In order to achieve the purpose, the utility model discloses a suspension type overhead rail car capable of vertically lifting, which comprises a car body capable of being suspended on an overhead rail and walking along the rail, wherein the car body comprises a box body and a top cover positioned at the top of the box body, the top cover is used for being connected with the rail in a suspension manner, the front end or the rear end of the top cover is provided with a mounting substrate connected with the top cover, a winding mechanism is arranged on the mounting substrate, the top cover and the box body are detachably connected through a plurality of main suspension cables, and the top cover and the box body can be in seamless contact; one end of each main sling is connected with the box body, and the other end of each main sling is wound on the winding mechanism.

Compared with the prior art, the utility model discloses but box and top cap of suspension type vertically lift aerial railcar are through main hoist cable detachable connection, and, because the hoist mechanism sets up on the mounting substrate of top cap one end, make box and top cap can seamless contact, thus reduce the distance between box and the track to the utmost extent, save the suspension space, therefore can effectively reduce the safe distance between track and the ground, for upper and lower double-deck track and in the current overpass, tunnel interior construction track etc. reduce the implementation degree of difficulty; in addition, because the box body is in seamless contact with the top cover in the running process of the vehicle body, the swing amplitude of the box body in the running and turning process can be effectively reduced.

Preferably, the hoisting mechanism comprises a main hoisting wheel and a driver in transmission connection with the main hoisting wheel, the main slings comprise a first sling connected with one end, close to the hoisting mechanism, of the box body and a second sling connected with one end, far away from the hoisting mechanism, of the box body, and the upper ends of the second slings extend to the main hoisting wheel along the top cover.

Preferably, the number of the main hoisting wheels is two, and the two main hoisting wheels are in transmission connection with the driver through a driving shaft; and a first sling and a second sling are wound on each main hoisting wheel.

Preferably, a pulley assembly is arranged on the top cover opposite to a connection point of the second sling and the box body, and the second sling is bent to turn to the direction of the main hoisting wheel through the pulley assembly.

Preferably, the pulley assembly comprises a pulley fixing member protruding downwards along the inner wall of the top cover and a plurality of pulley blocks arranged in the pulley fixing member, and the plurality of pulley blocks are arranged in an arc shape along the bending direction of the second sling.

Preferably, a through groove is formed in the top cover along the extending direction of the second sling, and the second sling is turned by the pulley assembly and then penetrates out of the other end of the top cover through the through groove.

Preferably, a set of lowering mechanisms is further disposed at the front end and the rear end of the box body, each lowering mechanism comprises an auxiliary hoisting wheel, an auxiliary sling wound on the auxiliary hoisting wheel, and a sliding connection mechanism used for fixing and releasing the main sling, each sliding connection mechanism comprises a base and a connection mechanism, each connection mechanism is connected with the corresponding base in a sliding clamping manner, the bases are slidably mounted on the box body, when the bases slide relative to the box body, the connection mechanisms can be separated from or clamped with the bases, one end of each connection mechanism is connected with the corresponding main sling, and the other end of each connection mechanism is connected with the corresponding auxiliary sling.

Preferably, an operating handle extending into the box body is arranged on the base.

Preferably, the connecting mechanism comprises a first connecting piece and a second connecting piece, the first connecting piece is connected with the main sling, the second connecting piece is connected with the auxiliary sling, the first connecting piece and the second connecting piece are detachably clamped and connected, the second connecting piece is detachably clamped and connected with the base, a driving piece is further arranged on the box body, a clamping groove used for being connected with the second connecting piece is formed in the driving piece, the driving piece can pull the second connecting piece away from the first connecting piece through the clamping groove, the first connecting piece is separated from the second connecting piece, and when the base is separated from the second connecting piece, the main sling can pull the second connecting piece out of the clamping groove through the first connecting piece.

Preferably, the two sets of auxiliary hoisting wheels at the two ends of the box body synchronously rotate through a gear linkage mechanism.

Preferably, the vehicle further comprises at least one group of locking mechanisms respectively arranged at the front end and the rear end of the vehicle body, and the box body and the top cover are locked together through the locking mechanisms.

Preferably, the locking mechanism includes a pair of locking levers and locking holes that are engaged with each other, one of the locking levers and the locking holes being provided on the box body and the other being provided on the top cover.

Preferably, but suspension type vertically lift's aerial railcar still includes an anti-swing mechanism, anti-swing mechanism includes that one sets up telescopic link on the box is in with the setting the magnet piece of the free end of telescopic link, the both sides of magnet piece are provided with a leading wheel respectively, works as the telescopic link stretches out when the box, the leading wheel along with the box is relative to be used for supporting orbital stand rolls, the magnet piece with produce the non-contact magnetic attraction that has certain dynamics between the stand, the magnetic attraction perpendicular to the stand.

Preferably, the free end of the telescopic rod is provided with a fixed box facing the opening of the upright column, the magnet block is embedded in the fixed box, and the upper surface of the magnet block is lower than the opening surface of the fixed box.

Preferably, the telescopic rod is arranged on the bottom wall of the box body, an accommodating groove is further formed in the bottom wall of the box body, and when the telescopic rod is in a retracted state, the magnet block is accommodated in the accommodating groove.

Preferably, an isolation layer made of a non-ferromagnetic material is disposed on the column at a position close to the rail, and when the box body is close to the rail, the magnet block is opposite to the isolation layer, so that the magnetic attraction between the magnet block and the column is reduced.

Preferably, the upper end and the lower end of the isolation layer are respectively provided with a slope which is butted with the running surface of the upright post.

Drawings

Fig. 1 is a schematic view of the driving state of the suspended vertically liftable air rail car of the present invention.

Fig. 2 is a schematic view of the lifting state of the suspended vertically liftable air rail car of the present invention.

Fig. 3 is an enlarged schematic structural view of the railcar body in fig. 2.

Fig. 4 is a schematic perspective view of the top cover in fig. 3.

Fig. 5 is a schematic view of a connection structure between a main sling and a main hoisting wheel according to an embodiment of the present invention.

Fig. 6 is a schematic structural diagram of a standby descending mechanism according to an embodiment of the present invention.

Fig. 7 is an enlarged structural view of a region a in fig. 6.

Fig. 8 is an exploded view of fig. 7.

Fig. 9 is an enlarged schematic structural view of the swing preventing mechanism in fig. 3.

Fig. 10 is a schematic perspective view of a pillar in an embodiment of the present invention.

Detailed Description

In order to explain technical contents, structural features, implementation principles, and objects and effects of the present invention in detail, the following detailed description is given with reference to the accompanying drawings in combination with the embodiments.

As shown in fig. 1 to 3, the present invention discloses a suspended type vertically liftable aerial rail car, which comprises a car body 1 suspended on an aerial rail 9 and traveling along the rail 9, wherein the rail 9 is erected in the air, the car body 1 travels along the rail 9, in order to get on or off passengers, when the car body 1 in this embodiment arrives at a station, the car body needs to be dropped to the ground, and then the car body is lifted to the rail 9 after the passengers finish getting on or off the station, therefore, the car body 1 comprises a box body 10 (carriage) and a top cover 11 located at the top of the box body 10, the top cover 11 is used for being connected with the rail 9 in a suspended manner, a mounting base plate 12 connected with the top cover 11 is arranged at the front end or the rear end of the top cover 11, a roll mechanism is arranged on the mounting base plate 12, the top cover 11 and the box body 10 are detachably connected by a plurality of main slings 2; one end of each of the main slings 2 is connected with the box body 10, and the other end of each of the main slings 2 is wound on the winding mechanism. In this embodiment, the top cover 11 is connected to a running mechanism (not shown) suspended on the rail 9, and when the box 10 is lifted to the upper end and fixed to the top cover 11, the running mechanism drives the box 10 to move along the rail 9 through the top cover 11.

In the above embodiment, the box body 10 and the top cover 11 are connected in a separable manner by the main sling 2, and the winding mechanism is installed at one end of the box body 10, and does not occupy the space at the top of the box body 10, so that the top wall of the box body 10 and the bottom wall of the top cover 11 are abutted together in the normal running process of the vehicle body 1, and the distance between the box body 10 and the track 9 is maximally reduced, and since the safety distance between the box body 10 and the running road surface is fixed, the installation height of the track 9 can be reduced by reducing the distance between the box body 10 and the track 9, so that the construction difficulty and the construction cost are reduced, especially when the existing overpass and tunnel are erected, the track 9 only needs to be erected above one express lane, and the requirements that a midbus and a sedan car with the normal running height of less than 2.7 meters below the track can be met, and a large vehicle with the height of 4.5 meters can, without the need to rebuild overpasses and tunnels. In addition, in the process of high-speed running of the vehicle body 1, the box body 10 is directly abutted to the top cover 11, so that the swing amplitude of the box body 10 can be reduced, and sharp turning is facilitated.

As shown in fig. 3 to 5, the hoisting mechanism includes a main hoisting wheel 30 and a driver 31 in transmission connection with the main hoisting wheel 30, the plurality of main slings 2 include a first sling 20 connected with one end of the box body 10 close to the hoisting mechanism and a second sling 21 connected with one end of the box body 10 far away from the hoisting mechanism, and the upper end of the second sling 21 extends to the main hoisting wheel 30 along the top cover 11. In this embodiment, the first sling 20 and the second sling 21 are fixed to the front and rear ends of the body 10, respectively, and the second sling 21 extends to the main winding wheel 30 along the top cover 11, so that the main winding wheel 30 installed at one end of the body 10 drives the first sling 20 and the second sling 21 to move simultaneously. Preferably, there are two main winding wheels 30, two main winding wheels 30 are in transmission connection with the driver 31 through a driving shaft 32, and each main winding wheel 30 is wound with a first sling 20 and a second sling 21. Each main hoisting wheel 30 is provided with two adjacent winding grooves, one winding groove is used for winding a first sling 20, the other winding groove is used for winding a second sling 21 opposite to the first sling 20 on the hoisting wheel, and the first sling 20 and the second sling 21 are respectively fixed at two corners at the front end and the rear end of the box body 10 so as to stably hoist the box body 10.

As shown in fig. 4 and 5, in order to facilitate the arrangement of the direction of the second sling wire 21, a pulley assembly is provided on the top cover 11 opposite to the connection point of the second sling wire 21 and the box body 10, and the second sling wire 21 is bent by the pulley assembly to turn toward the main hoisting wheel 30. Through pulley assembly, realize that second hoist cable 21 is by the turning of box 10 to top cap 11, reduce the frictional force of turning to the in-process, make and turn to smoothly, in addition, logical groove 110 has been seted up along the extending direction of second hoist cable 21 on the top cap 11, second hoist cable 21 passes through this logical groove 110 after turning to through pulley assembly and wears out the other end of top cap 11, through the setting of this logical groove 110, make second hoist cable 21 not influence the butt of box 10 and top cap 11. Preferably, the pulley assembly includes a pulley fixing member 40 protruding downward along the inner wall of the top cover 11 and a plurality of pulley blocks 41 provided in the pulley fixing member 40, the plurality of pulley blocks 41 being arranged in an arc shape along the bending direction of the second sling 21. As the main sling 2, a steel rope is generally used, and the steel rope is required to have a certain turning radius, and if the turning radius is too small, the transmission and the service life of the force are affected, so that, compared with the scheme of using a pulley with a relatively large diameter, in the embodiment, the diameter of the pulley in each pulley block 41 can be relatively reduced through the arrangement of a plurality of pulley blocks 41, so that the turning radius of the second sling 21 is satisfied, and meanwhile, the space occupied by the pulley is also reduced to a certain extent.

In order to avoid the situation that the box 10 cannot fall down when the main hoisting wheel 30 is stuck, in another preferred embodiment of the suspension type vertically liftable air rail car of the present invention, a set of lowering mechanisms are further respectively disposed at the front and rear ends of the box 10, as shown in fig. 6 and 7, each of the lowering mechanisms comprises an auxiliary hoisting wheel 50, an auxiliary sling 51 wound on the auxiliary hoisting wheel 50, and a sliding connection mechanism 53 for fixing and releasing the main sling 2, wherein the sliding connection mechanism 53 comprises a base 52 and a connection mechanism 53, the connection mechanism 53 is slidably engaged with the base 52, the base 52 is slidably mounted on the box 10, when the base 52 slides relative to the box 10, the connection mechanism 53 can be separated from or engaged with the base 52, one end of the connection mechanism 53 is connected with the main sling 2, and the other end of the connection mechanism 53 is connected with the auxiliary sling 51. In this embodiment, the front and rear ends of the box 10 are respectively provided with a receiving groove 14 (as shown in fig. 3), each receiving groove 14 is respectively provided with two sliding connection mechanisms 53 corresponding to the main slings 2 and two auxiliary hoisting wheels 50 corresponding to the sliding connection mechanisms 53, each auxiliary hoisting wheel 50 is wound with an auxiliary sling 51, and the auxiliary slings 51 are only used in emergency, so that the wear resistance of the auxiliary slings is not required, and the auxiliary slings can be woven by nylon fibers, aramid fibers and other materials, and are soft and firm. When the main hoist wheel 30 is jammed and the cage 10 cannot be lowered, the base 52 is slid to separate the link mechanism 53 from the base 52, and the main hoist rope 2 cannot be pulled out at this time, so that the upper end of the auxiliary hoist rope 51 is continuously pulled out with the link mechanism 53 as a fixed point when the auxiliary hoist wheel 50 rotates, and the cage 10 is lowered. In a normal state, the connecting mechanism 53 is connected with the base 52 into a whole, the main sling 2 is fixed on the connecting mechanism 53, and when the box body 10 descends, the main sling 2 is continuously pulled out through the connecting mechanism 53. In the sliding operation of the base 52 in an emergency, an operating handle 520 extending into the case 10 may be provided on the base 52, and the base 52 may be operated by a passenger or a worker to slide when the emergency occurs, or an electric driving mechanism connected to the base 52 may be provided in the container, and the base 52 may be automatically operated by the electric driving mechanism. In addition, in order to keep the body 10 stably descending, the two sets of auxiliary hoist wheels 50 at both ends of the body 10 are synchronously rotated by the gear linkage mechanism, so that the four auxiliary slings 51 are synchronously moved. As shown in fig. 6, the two auxiliary hoisting wheels 50 in the same storage tank 14 are engaged by gears, and the hoisting wheels 50 in the two storage tanks 14 are engaged by the gear transmission rod 54 and the gear pair 55.

As shown in fig. 7 and 8, the connection mechanism 53 includes a first connection member 530 and a second connection member 531, the first connection member 530 is connected to the main sling 2, the second connection member 531 is connected to the auxiliary sling 51, the auxiliary sling 51 drawn out from the auxiliary hoisting wheel 50 can be extended to the second connection member 531 through a diverting pulley 56, the first connection member 530 and the second connection member 531 are detachably engaged with each other, the second connection member 531 is further detachably engaged with the base 52, a driving member 532 is further provided on the body 10, the driving member 532 can be an electromagnet or a linear motor driving mechanism, a locking groove 533 for connecting with the second connecting member 531 is arranged on the driving member 532, through the engaging groove 533, the driving member 532 can pull the second connecting member 531 away from the first connecting member 530, so that the first connecting member 530 is separated from the second connecting member 531, and when the base 52 is separated from the second connector 531, the main sling 2 can pull the second connector 531 out of the catching groove 533 through the first connector 530. The connecting mechanism 53 in this embodiment has two functions, one of which is: when the main winding wheel 30 is caught, the base 52 is slid such that the second connecting member 531 is separated from the base 52, and at this time, the second connecting member 531 and the first connecting member 530 are still caught to be a fixing point of the auxiliary hoist rope 51, thereby supporting the falling of the container 10. The second is that: when the box body 10 is descended to the ground, the driving member 532 is started to pull the second connecting member 531, so that the second connecting member 531 is separated from the first connecting member 530, the first connecting member 530 is released, the connection between the main sling 2 and the box body 10 is disconnected, the box body 10 is released, the box body 10 can be dragged to a maintenance site for maintenance conveniently after being released, an autonomous power system can also be installed in the box body 10, and the box body 10 can autonomously run on the road surface through the autonomous power system, so that the use is convenient.

As shown in fig. 4 and 6, the suspension type vertically liftable air rail car of the present invention further comprises at least a set of locking mechanisms respectively disposed at the front and rear ends of the car body 1, and the box body 10 and the top cover 11 are locked together by the locking mechanisms. When the container 10 is raised to the rail 9, the container 10 is fixed with the top cover 11 by a locking mechanism, which is opened when the container 10 needs to be lowered. Preferably, the locking mechanism includes a pair of locking levers 60 and locking holes 61 engaged with each other, and one of the locking levers 60 and the locking holes 61 is provided on the casing 10 and the other is provided on the top cover 11. In this embodiment, two locking levers 60 are respectively disposed in each accommodating groove, the locking levers 60 are driven by an electric mechanism, four locking holes 61 adapted to the locking levers 60 are respectively disposed at four corners of the top cover 11, two locking holes 61 at the rear end of the top cover 11 can be opened on the pulley fixing member 40, two sides of the front end of the top cover 11 are respectively disposed with one lug 13, and each lug 13 is disposed with one locking hole 61. When the casing 10 needs to be lowered, the lock lever 60 needs to be moved out of the lock hole 61 to release the locked state of the casing 10.

For avoiding box 10 in the in-process side direction swing that goes up and down, the utility model discloses but another preferred embodiment of suspension type vertically lift's air rail car still includes an anti-swing mechanism, as fig. 3 and fig. 9, anti-swing mechanism includes a telescopic link 70 that sets up on box 10 and the magnet piece 71 of setting at the free end of telescopic link 70, the both sides of magnet piece 71 are provided with a leading wheel 72 respectively, when telescopic link 70 stretches out box 10, leading wheel 72 rolls along the stand 8 that is used for supporting track 9 relative with box 10, produce the non-contact magnetic attraction that has certain dynamics between magnet piece 71 and the stand 8, magnetic attraction is perpendicular to stand 8. In the lifting process of the box body 10, the telescopic rod 70 is in an extending state, at the moment, the guide wheel 72 rolls along the upright post 8, the magnet block 71 is close to the upright post 8, the distance between the magnet block 71 and the upright post 8 is 1-5mm, a horizontal magnetic attraction force is generated between the magnet block 71 and the upright post 8, the magnetic attraction force enables the box body 10 to tend to keep the same horizontal distance with the upright post 8 and avoids generating torque, and in the vertical direction, when the box body 10 does not swing, the magnetic attraction force at each position of the upper part and the lower part of the magnet block 71 and the upright post 8 is the same, therefore, the magnetic attraction force does not influence the up-down movement of the box body 10 while controlling the box body. Preferably, the free end of the telescopic rod 70 is provided with a fixing box 73 facing the opening of the column 8, the magnet block 71 is embedded in the fixing box 73, and the rim of the guide wheel 72 protrudes out of the opening surface 74 of the fixing box 73, when the telescopic rod 70 is extended out, the guide wheel 72 abuts against the column 8, so as to ensure that the magnet block 71 and the column 8 are in a non-contact state. Further, an isolation layer 80 made of non-ferromagnetic material is disposed on the column 8 near the track 9, and when the box 10 approaches the track 9, the magnet block 71 is opposite to the isolation layer 80, so that the magnetic attraction between the magnet block 71 and the column 8 is reduced. Through the setting of this isolation layer 80, when box 10 is about to rise to top cap 11 department, leading wheel 72 and magnet piece 71 remove to isolation layer 80 department, and the magnetic attraction between magnet piece 71 and the stand 8 subtracts, makes things convenient for the butt joint of box 10 and top cap 11, also reduces the drive power when telescopic link 70 contracts back to box 10. Preferably, as shown in fig. 10, the upper and lower ends of the isolation layer 80 are respectively provided with a slope 81 abutting against the running surface of the column 8, and the guide wheel 72 and the magnet block 71 can smoothly transit between the isolation layer 80 and other areas on the column 8 by the slope 81. In another embodiment (not shown), the isolation layer 80 does not need to be installed on the column 8, and the magnet block 71 adopts an electromagnet, and the magnetic attraction of the electromagnet is controlled by current, so that the effects of the above embodiment can be achieved.

In addition, as shown in fig. 9, in order to conveniently store the anti-swing mechanism, the telescopic rod 70 is disposed on the bottom wall of the box 10, a receiving groove 100 is further formed on the bottom wall of the box 10, and when the telescopic rod 70 is in the retracted state, the magnet block 71 is received in the receiving groove 100. In this embodiment, the extension and retraction of the extension rod 70 can be driven by a motor. This anti-swing mechanism can realize that box 10 keeps stable when running into the strong wind along stand 8 lift process to need not set up special direction slide rail on stand 8, reduce equipment acquisition and maintenance cost, box 10 when berthhing as long as anti-swing mechanism is in the facade scope of stand 8 (this facade width is 600 millimeters usually), just can play anti-swing mechanism and stand 8 butt joint, reduces the berth position required accuracy of box 10.

The above disclosure is only a preferred embodiment of the present invention, and certainly, the scope of the present invention should not be limited thereto, and therefore, the scope of the present invention is not limited to the above embodiments.

Claims (17)

1. A suspended type aerial rail car capable of vertically lifting is characterized by comprising a car body capable of being suspended on an aerial rail and walking along the rail, wherein the car body comprises a box body and a top cover positioned at the top of the box body, the top cover is used for being connected with the rail in a suspended mode, a mounting base plate connected with the top cover is arranged at the front end or the rear end of the top cover, a winding mechanism is arranged on the mounting base plate, the top cover and the box body are detachably connected through a plurality of main suspension cables, and the top cover and the box body can be in seamless contact; one end of each main sling is connected with the box body, and the other end of each main sling is wound on the winding mechanism.

2. The overhead trolley of claim 1, wherein the hoist mechanism comprises a main hoist wheel and a driver drivingly connected to the main hoist wheel, and the plurality of main slings comprise a first sling connected to the end of the housing near the hoist mechanism and a second sling connected to the end of the housing far from the hoist mechanism, and the upper end of the second sling extends along the top cover to the main hoist wheel.

3. The overhead trolley of claim 2, wherein the number of the main winding wheels is two, and the two main winding wheels are in transmission connection with the driver through a driving shaft; and a first sling and a second sling are wound on each main hoisting wheel.

4. The suspended vertically liftable aerial railcar according to claim 2, wherein a pulley assembly is disposed on the roof at a position opposite to a connection point of the second rope and the box body, and the second rope is bent by the pulley assembly to turn in the direction of the main hoisting wheel.

5. The suspended vertically liftable air rail car as claimed in claim 4, wherein the pulley assembly comprises a pulley fixing member protruding downward along the inner wall of the top cover and a plurality of pulley blocks provided in the pulley fixing member, the plurality of pulley blocks being arranged in an arc shape along the bending direction of the second sling.

6. The suspended vertically liftable aerial railcar according to claim 4, wherein a through groove is formed in the top cover in the extending direction of the second sling, and the second sling is turned by the pulley assembly and then penetrates out of the through groove to the other end of the top cover.

7. The suspended vertically liftable aerial rail car as claimed in claim 1, wherein a set of lowering mechanisms are respectively disposed at the front and rear ends of the box, the lowering mechanisms include an auxiliary hoisting wheel, an auxiliary sling wound around the auxiliary hoisting wheel, and a sliding connection mechanism for fixing and releasing the main sling, the sliding connection mechanism includes a base and a connection mechanism, the connection mechanism is slidably engaged with the base, the base is slidably mounted on the box, when the base slides relative to the box, the connection mechanism can be separated from or engaged with the base, one end of the connection mechanism is connected with the main sling, and the other end of the connection mechanism is connected with the auxiliary sling.

8. The suspended vertically liftable aerial railcar according to claim 7, wherein said base is provided with an operating handle extending into the interior of said housing.

9. The suspended vertically liftable aerial railcar according to claim 7, the connecting mechanism comprises a first connecting piece and a second connecting piece, the first connecting piece is connected with the main sling, the second connecting piece is connected with the auxiliary sling, the first connecting piece and the second connecting piece can be separately clamped and connected, the second connecting piece is detachably connected with the base in a clamping way, the box body is also provided with a driving piece, the driving piece is provided with a clamping groove used for being connected with the second connecting piece, through the clamping groove, the driving piece can pull the second connecting piece away from the first connecting piece, so that the first connecting piece is separated from the second connecting piece, and when the base is separated from the second connecting piece, the main sling can pull the second connecting piece out of the clamping groove through the first connecting piece.

10. The overhead trolley of claim 7, wherein the two sets of auxiliary winding wheels at the two ends of the box rotate synchronously via a gear linkage.

11. The overhead trolley of claim 1, further comprising at least one set of locking mechanisms respectively disposed at the front and rear ends of the trolley body, wherein the box body and the top cover are locked together by the locking mechanisms.

12. The suspended vertically liftable aerial railcar according to claim 11, wherein said locking mechanism comprises a pair of cooperating locking bars and locking holes, one of said locking bars and said locking holes being disposed on said tank and the other of said locking bars and said locking holes being disposed on said roof.

13. The suspended vertically liftable aerial rail car as claimed in claim 1, further comprising an anti-swing mechanism, wherein the anti-swing mechanism comprises a telescopic rod disposed on the box body and a magnet block disposed at a free end of the telescopic rod, two sides of the magnet block are respectively provided with a guide wheel, when the telescopic rod extends out of the box body, the guide wheels roll along a column opposite to the box body for supporting the rail, a non-contact magnetic attraction force with a certain force is generated between the magnet block and the column, and the magnetic attraction force is perpendicular to the column.

14. The overhead trolley according to claim 13, wherein the free end of the telescopic rod is provided with a fixed box facing the opening of the column, the magnet block is embedded in the fixed box, and the upper surface of the magnet block is lower than the opening surface of the fixed box.

15. The suspended vertically liftable aerial railcar according to claim 13, wherein said telescoping rod is disposed on a bottom wall of said box, said bottom wall of said box further defining a receiving slot, said magnet block being received in said receiving slot when said telescoping rod is in a retracted state.

16. The suspended vertically liftable air rail vehicle of claim 13, wherein an isolation layer made of non-ferromagnetic material is disposed on the column near the rail, and when the housing approaches the rail, the magnet block is opposite to the isolation layer, so that the magnetic attraction between the magnet block and the column is reduced.

17. The suspended vertically liftable aerial railcar according to claim 16, wherein said insulation layer is provided at each of upper and lower ends thereof with a slope abutting against the running surface of the column.

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