A transport device applied to a staircase

Abstract

The application relates to a conveying device applied to a staircase, belonging to the technical field of conveying equipment, which comprises tracks, the tracks are provided with two tracks, the two tracks are parallel to each other, the track comprises a plurality of guide rail bodies, the adjacent guide rail bodies are connected in a head-to-tail mode, a connecting assembly for connecting and fixing the two guide rail bodies is arranged between the guide rail bodies, a support is fixedly arranged below each guide rail body, a carrier is slidingly arranged along the length direction of the track, and a traction device for driving the carrier to move upwards along the track is arranged between the two tracks. The application has the effect of conveniently conveying objects in a staircase.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of transportation equipment, in particular to a transportation device applied to a staircase. BACKGROUND

[0002] In a residential building, a staircase is a component for vertical traffic between floors. It is used for traffic connection between floors and when the height difference is large.

[0003] When a staff member needs to carry a large object upstairs, the staircase will cause a serious hindrance to the object. A plurality of staff members need to lift the object and carry it upstairs, and the staff members need to exert a lot of work labor. The inventor believes that there is a defect of inconvenient transportation in the corridor. SUMMARY

[0004] In order to facilitate the transportation of objects in the corridor, the present application provides a transportation device applied to a staircase.

[0005] The transportation device applied to the staircase provided by the present application adopts the following technical scheme:

[0006] A transportation device applied to a staircase, comprising a track, the track is provided with two, the two tracks are parallel to each other, the track comprises a plurality of guide rail bodies, the adjacent guide rail bodies are connected end to end, a connecting assembly for connecting and fixing the two is arranged between the guide rail bodies, a support is fixedly arranged below each guide rail body, a carrier is slidingly arranged along the length direction of the track, and a traction device is arranged between the two tracks for driving the carrier to move upward along the track.

[0007] By adopting the above technical scheme, the adjacent guide rail bodies are connected end to end to form a track by using a connecting assembly, the track is supported on the staircase by a support, the track gradually rises along the direction of the staircase construction, the carrier is placed on the two tracks, and the carrier is driven by the traction device to move from the bottom of the track to the top of the track, thereby achieving the effect of facilitating the transportation of objects in the corridor.

[0008] Optionally, a protective sleeve is fixed to the lower surface of the track, and the connecting assembly is located in the protective sleeve, the connecting assembly comprising a rotating rod, a threaded sleeve, a moving plate, and a plug rod, an inner wall of one end of the protective sleeve is provided with a slot, the other end of the protective sleeve is provided with a plug sleeve which is adapted to be plugged into the slot, the rotating rod is located in the protective sleeve and is rotationally connected with the protective sleeve, a circumferential sidewall of the rotating rod at the slot is provided with a threaded structure, the rotating rod is threadedly connected with the threaded sleeve at the slot, an inner wall of the protective sleeve at the slot is provided with a guide groove along the length direction of the protective sleeve, a guide rod is arranged between the threaded sleeve and the guide groove, one end of the guide rod is fixedly connected with the threaded sleeve, and the other end of the guide rod is located in the guide groove and slides along the length direction of the guide groove; a sidewall of the plug sleeve is provided with an avoiding slot along the length direction of the plug sleeve, the moving plate is located in the plug sleeve, a connecting spring is fixedly arranged between the moving plate and the inner wall of the plug sleeve, the plug sleeve is provided with a through hole, the protective sleeve is provided with a plug hole which is adapted to be plugged into the plug rod at the slot, and the plug rod is fixedly arranged on the moving plate on the side facing the through hole; after the plug sleeve is plugged into the slot, the plug rod, the through hole, and the plug hole are aligned, and a sidewall of the threaded sleeve is fixedly provided with a protrusion for driving the moving plate to move towards the through hole.

[0009] By adopting the above technical scheme, when the adjacent track bodies are connected, the plug sleeve of the track body located on the upper side is plugged into the slot of the track body located on the lower side, then the rotating rod is rotated, the threaded sleeve is moved along the length direction of the rotating rod under the guiding action of the guide rod and the threaded connection between the threaded sleeve and the rotating rod, when the threaded sleeve moves to the position of the moving plate, the threaded sleeve drives the protrusion to move to the position of the moving plate, the moving plate is moved towards the through hole, the plug rod is plugged into the plug hole through the through hole, thereby realizing the connection and fixation of the adjacent track bodies; when the track bodies need to be disassembled, the rotating rod is reversely rotated, the threaded sleeve is gradually moved away from the moving plate, the connecting spring releases the elastic force to drive the moving plate to return to the original position, and the moving plate pulls out the plug rod from the plug hole and the through hole, thereby realizing the effect that the adjacent track bodies are convenient to assemble and disassemble.

[0010] Optionally, the support comprises a main support and a side support, the top of the main support is fixedly connected with the bottom of the protective sleeve, the main support abuts against the upper surface of the staircase, and the side support is fixedly arranged on one side of the main support and abuts against the sidewall of the staircase.

[0011] By adopting the above technical scheme, the main support abuts against the ground, the track is supported above the staircase, the side support abuts against the sidewall of the staircase, the track is not easy to shake, and the stability of the track is improved.

[0012] Optionally, the main support is provided with a main reinforcing rod which slides along the vertical direction, the bottom of the main reinforcing rod is fixedly provided with a main suction disc, and a main hinged rod is hinged between the top of the main reinforcing rod and the threaded sleeve.

[0013] By adopting the above technical scheme, the main hinged rod is driven to move in the process that the threaded sleeve moves, the main reinforcing rod is driven to gradually move downwards by the main hinged rod, and the main suction disc is driven to be adsorbed to the upper surface of the stairs, so that the track is not easy to shake when the object is transported, and the stability of the track is improved.

[0014] Optionally, the side support is provided with a side reinforcing rod which slides along the horizontal direction, the end of the side reinforcing rod away from the main reinforcing rod is fixedly provided with a side suction disc, and a side hinged rod is hinged between the end of the side reinforcing rod away from the side suction disc and the main reinforcing rod.

[0015] By adopting the above technical scheme, the side hinged rod is driven to move when the main reinforcing rod moves downwards, and the side reinforcing rod is driven to move by the side hinged rod, so that the side reinforcing rod drives the side suction disc to be adsorbed to the side wall of the stairs, and the stability of the track is further improved.

[0016] Optionally, the end of the rotating rod located in the slot is fixedly provided with a connecting sleeve, the end of the rotating rod located in the sleeve is fixedly provided with a connecting rod, the side wall of the connecting rod is fixedly provided with a connecting block, and the inner wall of the connecting sleeve is provided with a connecting groove which is matched with the connecting block in clamping.

[0017] By adopting the above technical scheme, when the sleeve is inserted into the slot, the connecting rod is inserted into the connecting sleeve, the connecting block is clamped in the connecting groove, and then when one of the rotating rods is rotated, the plurality of connecting rods can be simultaneously rotated.

[0018] Optionally, the sleeve is provided with a clamping block, the clamping block is located on one side of the connecting rod, a compression spring is fixedly arranged on the inner wall between the clamping block and the sleeve, a clamping groove which is matched with the connecting block in clamping is arranged on the side of the clamping block away from the compression spring, trigger rods are arranged on both sides of the clamping block, one end of the trigger rod extends out of the sleeve, the other end of the trigger rod is located in the sleeve, an adjusting rod is arranged between the trigger rod and the clamping block, both ends of the adjusting rod are hinged with the trigger rod and the clamping block respectively, and the end of the trigger rod located outside the sleeve is arranged as an inclined surface towards the port of the sleeve.

[0019] When the sleeve is inserted into the slot, the sleeve portion of the protective sleeve can automatically extrude the trigger stem back into the interior of the sleeve, the trigger lever moves the clamping block away from the connecting rod through the adjusting rod, the connecting block leaves the clamping slot, the connecting rod can be connected with the connecting sleeve and can rotate, and the compression spring is in a compressed state at this time; when the guide rail body is disassembled, the sleeve is pulled out of the slot, the compression spring releases the elastic force to drive the clamping block, the adjusting rod and the trigger lever to reset, the connecting block is clamped into the clamping slot, the connecting rod cannot rotate at this time, the rotating rod is in a locked state, and the accuracy of the position when the guide rail body is connected again is improved.

[0020] Optionally, a rotating device for driving the rotating rod to rotate is arranged between the two tracks, the rotating device comprises a motor and a rotating rod, a first bevel gear is fixedly arranged on the output shaft of the motor, a second bevel gear is fixedly arranged on the transmission rod, the first bevel gear and the second bevel gear are meshed with each other, third bevel gears are fixedly connected to both ends of the transmission rod, and a fourth bevel gear is fixedly arranged on the end of the rotating rod, the third bevel gears and the fourth bevel gear are meshed with each other.

[0021] By adopting the above technical scheme, the motor drives the first bevel gear to rotate, the first bevel gear drives the transmission rod to rotate through the meshing with the second bevel gear, the transmission rod drives the third bevel gears to rotate, and the transmission rod drives the rotating rod to rotate through the meshing of the third bevel gears and the fourth bevel gear, so that the effect of driving the rotating rod to rotate is achieved.

[0022] Optionally, the traction device comprises a winch and a traction rope, the winch is installed between the top portions of the two tracks, the traction rope is wound on the circumferential side wall of the drum of the winch, and one end of the traction rope away from the winch is connected with the carrier.

[0023] By adopting the above technical scheme, when it is needed to move the carrier upwards along the stairs, the traction rope can be wound on the circumferential side wall of the drum of the winch through the winch, and the traction rope drives the carrier to move along the track.

[0024] Optionally, a roller is rotatably connected to the bottom of the carrier, and the roller rolls along the length direction of the track.

[0025] By adopting the above technical scheme, the friction when the carrier moves is reduced, and the smoothness when the carrier moves is improved.

[0026] In summary, the present application has at least one of the following beneficial technical effects:

[0027] 1. The sleeve is inserted into the slot portion of the adjacent guide rail, the connection between the adjacent guide rail bodies can be achieved, and the connection between the adjacent rotating rods can be achieved;

[0028] 2. By rotating one of the rotating rods, all the rotating rods in the track can be driven to rotate, and the connection and fixation of the track can be achieved;

[0029] 3. By rotating one of the rotating rods, the reinforcement between the track and the stairs can also be realized, and the stability of the track is improved. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 is a structural schematic diagram of a transportation device applied to stairs according to an embodiment of the present application;

[0031] Figure 2 is a partial schematic diagram of the structure between the carrier and the track according to an embodiment of the present application;

[0032] Figure 3 is an exploded view of the connection relationship between adjacent protective sleeves according to an embodiment of the present application;

[0033] Figure 4 is an exploded view of the connection relationship between adjacent rotating rods according to an embodiment of the present application;

[0034] Figure 5 is a partial cross-sectional view of the connection between adjacent rotating pipes according to an embodiment of the present application;

[0035] Figure 6 is a cross-sectional view of the relationship between the clamping block and the connecting pipe according to an embodiment of the present application;

[0036] Figure 7 is a partial schematic diagram of the structure of the rotating device according to an embodiment of the present application.

[0037] In the figure, 1, track; 11, guide rail body; 111, protective sleeve; 112, insertion slot; 1121, guide groove; 1122, insertion hole; 113, insertion sleeve; 1131, avoidance slot; 1132, through hole; 1133, notch; 2, connecting assembly; 21, rotating rod; 211, fourth bevel gear; 22, threaded sleeve; 221, guide rod; 222, protruding block; 23, moving plate; 231, connecting spring; 24, insertion rod; 3, support; 31, main support; 311, main reinforcing rod; 312, main hinged rod; 313, main suction cup; 32, side support; 321, side reinforcing rod; 322, side hinged rod; 323, side suction cup; 4, carrier; 41, roller; 5, traction device; 51, winch; 52, traction rope; 6, connecting sleeve; 61, connecting slot; 7, connecting rod; 71, connecting block; 8, clamping block; 81, compression spring; 82, clamping slot; 83, trigger rod; 84, adjusting rod; 9, rotating device; 91, motor; 911, first bevel gear; 92, transmission rod; 921, second bevel gear; 922, third bevel gear. DETAILED DESCRIPTION

[0038] The following will be described in detail in combination with the drawings Figures 1-7 The present application will be further described in detail.

[0039] The embodiment of the present application discloses a transportation device applied to stairs.

[0040] Reference Figure 1 and Figure 2 The transportation device applied to stairs comprises two parallel tracks 1, the tracks 1 are arranged upwards along the bottom to the top of the stairs, a carrier 4 for transporting objects and a traction device 5 for moving the carrier 4 are arranged between the two tracks 1. The bottom of the track 1 is provided with a support 3 for supporting the track 1 above the stairs.

[0041] The traction device 5 comprises a winch 51 and a traction rope 52, the winch 51 is installed at the top of the uppermost guide rail body 11, the traction rope 52 is wound on the circumferential side wall of the winch 51 drum, and the end of the traction rope 52 away from the winch 51 is connected with the carrier 4; the roller 41 is installed at the four corner positions of the bottom of the carrier 4, and the roller 41 rolls along the length direction of the track 1. When the staff needs to carry the object to the upstairs, the object can be placed on the carrier 4, and then the traction rope 52 is wound by the winch 51, so as to drive the carrier 4 to move along the track 1 to the uppermost guide rail body 11, thereby providing convenience for the carrying work of the staff.

[0042] Reference Figure 3 and Figure 4 Each track 1 comprises a plurality of guide rail bodies 11, the guide rail bodies 11 are connected in a head-to-tail mode, the bottom of each guide rail body 11 is fixedly provided with a protective sleeve 111 along the length direction of the guide rail body 11, one end of the protective sleeve 111 is provided with a slot 112, the other end of the protective sleeve 111 is fixedly provided with a sleeve 113, and the sleeve 113 is inserted and matched with the slot 112. The connection assembly 2 for connecting and fixing the adjacent protective sleeves 111 is arranged in the protective sleeve 111.

[0043] Reference Figure 4 and Figure 5The connecting assembly 2 comprises a rotating rod 21, a threaded sleeve 22, a moving plate 23 and a plug rod 24. The protective sleeve 111 is provided with a plug hole 1122 at the plug groove 112, the sidewall of the plug sleeve 113 at the plug sleeve 113 is provided with a through hole 1132, the plug sleeve 113 of the adjacent protective sleeve 111 is inserted into the plug groove 112 of the adjacent protective sleeve 111, the through hole 1132 is aligned with the plug hole 1122, the rotating rod 21 is arranged inside the protective sleeve 111 along the length direction of the protective sleeve 111, the rotating rod 21 is provided with threads on the circumferential sidewall of the part located in the plug groove 112, the rotating rod 21 is threadedly connected with the threaded sleeve 22 at the threads of the rotating rod 21, the inner wall of the plug groove 112 of the protective sleeve 111 is provided with a guide groove 1121 along the length direction of the plug groove 112, the threaded sleeve 22 is fixedly connected with a guide rod 221, the plug sleeve 113 is provided with an avoiding groove 1131 through which the guide rod 221 passes along the length direction of the plug sleeve 113, the end of the guide rod 221 away from the threaded sleeve 22 extends into the guide groove 1121 through the avoiding groove 1131 and slides along the length direction of the guide groove 1121, the threaded sleeve 22 is fixedly provided with a lug 222 on both sides, the moving plate 23 is provided with two, both of the moving plates 23 are located in the plug sleeve 113 and correspond to the two lugs 222 respectively, the moving plate 23 and the inner wall of the plug sleeve 113 are fixedly connected with a connecting spring 231, the plug rod 24 is located on the side of the moving plate 23 away from the lug 222, and the plug rod 24 is aligned with the through hole 1132 and the plug hole 1122.

[0044] When the rotating rod 21 rotates, the threaded sleeve 22 moves along the length direction of the rotating rod 21 under the action of the threaded connection between the rotating rod 21 and the threaded sleeve 22 and the guidance of the guide rod 221 in the guide groove 1121, when the lug 222 moves to abut against the moving plate 23, the moving plate 23 drives the plug rod 24 to pass through the through hole 1132 and insert into the plug hole 1122, at this time, the connecting spring 231 is in a compressed state, the connection and fixation between the adjacent protective sleeves 111 are realized, and then the connection between the adjacent guide rail bodies 11 is realized; if it is needed to disassemble the adjacent guide rail bodies 11, the rotating rod 21 is only needed to be reversely rotated, the threaded sleeve 22 is away from the moving plate 23, the connecting spring 231 releases the elastic force, the moving plate 23 drives the plug rod 24 to pull out from the plug hole 1122 and the through hole 1132, and then the plug sleeve 113 is pulled out from the plug groove 112, so that the adjacent guide rail bodies 11 can be disassembled.

[0045] Referring to Figure 2 and Figure 3The support 3 comprises a main support 31 and a side support 32. The main support 31 is internally hollow and vertically arranged. The top of the main support 31 is fixedly connected with the bottom of the protective sleeve 111. The interior of the main support 31 is in communication with the interior of the protective sleeve 111. The bottom of the main support 31 is in communication with the interior of the main support 31 and abuts against the upper surface of the staircase. The side support 32 is located at one side of the main support 31. The interior of the side support 32 is hollow. One end of the side support 32 is fixedly connected with the side wall of the main support 31. The side support 32 is in communication with the main support 31. The other end of the side support 32 is in communication with the interior of the side support 32 and abuts against the side wall of the staircase.

[0046] The main reinforcing rod 311 is slidably arranged in the interior of the main support 31 along the length direction of the main support 31. The main hinge rod 312 is arranged between the top of the main reinforcing rod 311 and the threaded sleeve 22. The two ends of the main hinge rod 312 are hingedly connected with the threaded sleeve 22 and the main reinforcing rod 311 respectively. The side wall of the insertion sleeve 113 is provided with the notch 1133. The main hinge rod 312 passes through the insertion sleeve 113 from the notch 1133. The bottom of the main reinforcing rod 311 is fixedly connected with the main suction disc 313. The side reinforcing rod 321 is slidably arranged in the interior of the side support 32 along the length direction of the side support 32. The side hinge rod 322 is arranged between one end of the side reinforcing rod 321 and the main reinforcing rod 311. The two ends of the side hinge rod 322 are hingedly connected with the main reinforcing rod 311 and the side reinforcing rod 321 respectively. The end of the side reinforcing rod 321 away from the main reinforcing rod 311 is fixedly connected with the side suction disc 323. When the threaded sleeve 22 moves, the threaded sleeve 22 drives the main reinforcing rod 311 to move downward along the vertical direction through the main hinge rod 312, so that the main suction disc 313 is adsorbed to the upper surface of the staircase. When the main reinforcing rod 311 moves downward, the main reinforcing rod 311 drives the side reinforcing rod 321 to move to the side wall of the staircase through the side hinge rod 322, so that the side suction disc 323 is adsorbed to the side wall of the staircase. Through the above structure, when the guide rail bodies 11 are connected, the guide rail bodies 11 and the staircase can be simultaneously reinforced.

[0047] Referring to Figure 4 and Figure 5 The end of the rotating rod 21 located in the insertion slot 112 is fixedly connected with the connecting sleeve 6. The end of the rotating rod 21 located in the insertion sleeve 113 is fixedly provided with the connecting rod 7. The connecting rod 7 is insertedly matched with the connecting sleeve 6. The inner wall of the connecting sleeve 6 is provided with the connecting groove 61. The circumferential outer wall of the connecting rod 7 is fixedly provided with the connecting block 71 matched with the connecting groove 61. When the insertion sleeve 113 is inserted into the insertion slot 112, the connecting rod 7 is inserted into the connecting sleeve 6. At this time, the connecting block 71 is located in the connecting groove 61. When one of the rotating rods 21 rotates, the other rotating rod 21 can be driven to synchronously rotate through the connection of the connecting rod 7 and the connecting sleeve 6. This provides convenience for the staff to install the guide rail bodies 11.

[0048] Referring to Figure 4 andFigure 6 The clamping block 8 is fixedly connected with the compression spring 81 between the inner wall of the plug sleeve 113 and the clamping block 8, and a clamping groove 82 adapted to the clamping block 71 is formed on the side away from the compression spring 81. The trigger rod 83 is arranged on both sides of each clamping block 8 and penetrates the side wall of the protective sleeve 111. The trigger rod 83 is slidingly connected with the protective sleeve 111 in the horizontal direction, and one end of the trigger rod 83 extends from the inside of the plug sleeve 113. The other end of the trigger rod 83 and the side wall of the clamping block 8 are provided with the adjusting rod 84, and the two ends of the adjusting rod 84 are respectively hinged with the trigger rod 83 and the clamping block 8. When the plug sleeve 113 is inserted into the plug groove 112, the plug groove 112 part of the protective sleeve 111 presses the trigger rod 83 into the plug sleeve 113, and the trigger rod 83 drives the clamping block 8 away from the connecting rod 7 through the adjusting rod 84. At this time, the compression spring 81 is in a compressed state, the clamping block 71 is away from the clamping groove 82, so that the connecting sleeve 6 can drive the connecting rod 7 to rotate after the connecting sleeve 6 and the connecting rod 7 are inserted. When the plug sleeve 113 is pulled out of the plug groove 112, the compression spring 81 releases the elastic force and drives the clamping block 8, the adjusting rod 84 and the trigger rod 83 to reset. The clamping block 8 is clamped with the clamping block 71, which locks the connecting rod 7, so that the rotating rod 21 and the connecting rod 7 are not easy to rotate after the guide rail body 11 is separated, and the accuracy of the position of the connecting rod 7 and the connecting sleeve 6 in the future is improved.

[0049] Referring to Figure 1 And Figure 7 The rotating device 9 for driving the rotating rod 21 to rotate is arranged between the two guide rail bodies 11 at the bottom of the track 1. The rotating device 9 includes a motor 91 and a transmission rod 92. The end of the output shaft of the motor 91 is fixedly connected with a first bevel gear 911. The middle of the transmission rod 92 is fixedly provided with a second bevel gear 921. The first bevel gear 911 is meshed with the second bevel gear 921. The two ends of the transmission rod 92 are fixedly provided with third bevel gears 922. The two third bevel gears 922 are in the same direction. The end of the rotating rod 21 corresponding to the lowermost guide rail body 11 is fixedly provided with a fourth bevel gear 211. The third bevel gear 922 is meshed with the fourth bevel gear 211.

[0050] The motor 91 drives the first bevel gear 911 to rotate, which drives the rotating rod 21 to rotate through the meshing of the first bevel gear 911 and the second bevel gear 921. The rotating rod 21 drives the third bevel gear 922 to rotate, which realizes the rotation of the rotating rod 21 through the meshing of the third bevel gear 922 and the fourth bevel gear 211.

[0051] The implementation principle of the embodiment of the transportation device applied to the stair is as follows: first, the inserting sleeve 113 is inserted into the inserting groove 112 to connect the adjacent guide rail bodies 11, the connecting rod 7 is inserted into the connecting sleeve 6 to connect the adjacent rotating rods 21, then all the rotating rods 21 are driven to rotate together by the rotating device 9, the threaded sleeve 22 moves along the rotating rod 21, the inserting rod 24 passes through the protection sleeve 111 and the inserting sleeve 113, the main suction disc 313 is adsorbed to the upper surface of the stair, and the side suction disc 323 is adsorbed to the side wall of the stair. Therefore, the connection and fixation between the guide rail bodies 11 and the reinforcement between the guide rail bodies 11 and the stair are realized, then the object to be carried is placed on the carrier 4, the traction device 5 drives the carrier 4 and the object to be carried to move to the top of the stair, and the effect that the object is conveniently transported in the corridor is realized.

[0052] The embodiments of the specific implementation are the preferred embodiments of the application, and are not intended to limit the protection scope of the application, so that: any equivalent changes made according to the structure, shape, principle of the application should be covered within the protection scope of the application.

Claims

1. A transport device for application to a stair, characterised in that: The application relates to a track (1) which is provided with two tracks (1) parallel to each other, the track (1) comprises a plurality of guide rail bodies (11), the adjacent guide rail bodies (11) are connected end to end, the connecting assembly (2) is arranged between the guide rail bodies (11) for connecting and fixing the two, the support (3) is fixedly arranged below each guide rail body (11), the carrier (4) is slidingly arranged along the length direction of the track (1), the traction device (5) is arranged between the two tracks (1) for driving the carrier (4) to move upwards along the track (1); the lower surface of the track (1) is fixedly provided with a protective sleeve (111), the connecting assembly (2) is located in the protective sleeve (111), the connecting assembly (2) comprises a rotating rod (21), a threaded sleeve (22), a moving plate (23) and a plug rod (24), the inner wall of one end of the protective sleeve (111) is provided with a slot (112), the other end of the protective sleeve (111) is provided with a plug sleeve (113) which is adaptively plugged with the slot (112), the rotating rod (21) is located in the protective sleeve (111) and is rotationally connected with the protective sleeve (111), the circumferential sidewall of the rotating rod (21) at the slot (112) is processed with a threaded structure, the rotating rod (21) is threadedly connected with the threaded sleeve (22) at the slot (112), the inner wall of the protective sleeve (111) at the slot (112) is provided with a guide groove (1121) along the length direction of the protective sleeve (111), the guide rod (221) is arranged between the threaded sleeve (22) and the guide groove (1121), one end of the guide rod (221) is fixedly connected with the threaded sleeve (22), the other end of the guide rod (221) is located in the guide groove (1121) and slides along the length direction of the guide groove (1121); the sidewall of the plug sleeve (113) is provided with an avoiding slot (1131) along the length direction of the plug sleeve (113) for the guide rod (221) to pass through, the moving plate (23) is located in the plug sleeve (113), the inner wall between the moving plate (23) and the plug sleeve (113) is fixedly provided with a connecting spring (231), the plug sleeve (113) is provided with a through hole (1132), the protective sleeve (111) is provided with a plug hole (1122) which is adaptively plugged with the plug rod (24) at the slot (112), the plug rod (24) is fixedly arranged on the side of the moving plate (23) which faces the through hole (1132), after the plug sleeve (113) is inserted into the slot (112), the plug rod (24), the through hole (1132) and the plug hole (1122) are aligned, the sidewall of the threaded sleeve (22) is fixedly provided with a protruding block (222) for driving the moving plate (23) to move towards the through hole (1132).

2. A transport device for use on stairs as claimed in claim 1, wherein: The support (3) comprises a main support (31) and a side support (32), the top of the main support (31) is fixedly connected with the bottom of the protective sleeve (111), the main support (31) abuts against the upper surface of the staircase, the side support (32) is fixedly arranged on one side of the main support (31) and abuts against the sidewall of the staircase.

3. A transport device for use on stairs as claimed in claim 2, wherein: The main support (31) is internally provided with a main reinforcing rod (311) sliding along the vertical direction, the bottom of the main reinforcing rod (311) is fixedly provided with a main suction cup (313), and the top of the main reinforcing rod (311) is hingedly connected with a main hinge rod (312) between the threaded sleeve (22); the bottom of the main support (31) is in communication with the inside of the main support (31).

4. A transport device for use on stairs as claimed in claim 3, wherein: The side support (32) is internally provided with a side reinforcing rod (321) sliding along the horizontal direction, the end of the side reinforcing rod (321) away from the main reinforcing rod (311) is fixedly provided with a side suction cup (323), and the end of the side reinforcing rod (321) away from the side suction cup (323) is hingedly connected with a side hinge rod (322) between the main reinforcing rod (311); the end of the side support (32) is in communication with the inside of the side support (32).

5. The transport device for use on stairs according to claim 1, characterized in that: The end of the rotating rod (21) located in the slot (112) is fixedly provided with a connecting sleeve (6), the end of the rotating rod (21) located in the plug sleeve (113) is fixedly provided with a connecting rod (7), the side wall of the connecting rod (7) is fixedly provided with a connecting block (71), and the inner wall of the connecting sleeve (6) is provided with a connecting groove (61) matched with the connecting block (71).

6. A transport device for use on stairs according to claim 5, characterized in that: The plug sleeve (113) is provided with a clamping block (8) located on one side of the connecting rod (7), a compression spring (81) is fixedly arranged on the inner wall between the clamping block (8) and the plug sleeve (113), the side of the clamping block (8) away from the compression spring (81) is provided with a clamping groove (82) matched with the connecting block (71), and trigger rods (83) are arranged on both sides of the clamping block (8). One end of the trigger rod (83) extends out of the plug sleeve (113), the other end of the trigger rod (83) is located in the plug sleeve (113), and an adjusting rod (84) is arranged between the trigger rod (83) and the clamping block (8). The two ends of the adjusting rod (84) are hingedly connected with the trigger rod (83) and the clamping block (8) respectively.

7. The transport device for use on stairs according to claim 1, characterized in that: The two tracks (1) are provided with a rotating device (9) for driving the rotating rod (21) to rotate, the rotating device (9) comprises a motor (91) and a rotating rod (21), the output shaft of the motor (91) is fixedly provided with a first bevel gear (911), a transmission rod (92) is fixedly provided with a second bevel gear (921), the first bevel gear (911) and the second bevel gear (921) are meshed with each other, the two ends of the transmission rod (92) are fixedly connected with third bevel gears (922), and the end of the rotating rod (21) is fixedly provided with a fourth bevel gear (211). The third bevel gear (922) is meshed with the fourth bevel gear (211).

8. The transport device for use on stairs according to claim 1, characterized in that: The traction device (5) comprises a winch (51) and a traction rope (52), the winch (51) is installed between the top of the two tracks (1), the traction rope (52) is wound on the circumferential side wall of the drum in the winch (51), and the end of the traction rope (52) away from the winch (51) is connected with the carrier (4).

9. The transport device for use on stairs of claim 1, wherein: The bottom of the carrier (4) is rotatably connected with a roller (41), and the roller (41) rolls along the length direction of the track (1).

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