A transport trolley and method for facilitating the transport of prefabricated stairs

Abstract

The present invention provides a transport trolley and method for facilitating the transport of prefabricated stairs, belonging to the technical field of transport trolleys. The transport trolley for facilitating the transport of prefabricated stairs comprises a transport trolley, a power-assisting mechanism and a lifting mechanism. The transport trolley comprises a loading plate, a fixed plate, a connecting frame, a rotating shaft and wheels. Two fixed plates are fixedly connected to the bottom of the loading plate, the connecting frames are fixedly connected to the bottom of the two fixed plates, the rotating shaft is arranged between the two connecting frames, and the wheels are arranged at both ends of the rotating shaft. The power-assisting mechanism is arranged at the bottom of the loading plate, the power-assisting mechanism comprises a driving motor, a reducer, a transmission shaft, an active bevel gear and a driven bevel gear, the driving motor is fixedly installed at the bottom of the loading plate, and a staff controls the servo motor to drive the synchronous shaft to drive the winding wheel and the ratchet to rotate, so that the wire rope is wound around the surface of the winding wheel, and drives the first auxiliary wheel and the second auxiliary wheel to follow the rotation.

Description

Technical Field

[0001] The present invention belongs to the technical field of transport trolleys, and in particular, relates to a transport trolley and a method for facilitating the transportation of prefabricated stairs. Background Art

[0002] With the development of the construction industry, prefabricated buildings have been widely recognized. Prefabricated buildings refer to buildings that transfer a large number of on-site operations in traditional construction methods to factories, where building components and accessories (such as floor slabs, wall panels, stairs, balconies, etc.) are processed and manufactured in factories, transported to construction sites, and assembled and installed on site through reliable connection methods.

[0003] However, since prefabricated stairs are heavy overall, they are troublesome to transport. Currently, there are no transport vehicles for transporting prefabricated stairs on construction sites. The workers spend a lot of time and effort in transporting the prefabricated stairs, which increases labor intensity. Summary of the invention

[0004] The embodiment of the present invention provides a transport trolley and method for facilitating the transport of prefabricated stairs, which aims to solve the problem that there is no transport trolley for transporting prefabricated stairs at existing construction sites, and workers waste time and effort in the process of transporting prefabricated stairs.

[0005] In view of the above problems, the technical solution proposed by the present invention is:

[0006] The present invention provides a transport trolley for facilitating the transport of prefabricated stairs, comprising:

[0007] A transport trolley, the transport trolley comprising a loading plate, a fixing plate, a connecting frame, a rotating shaft and wheels, the bottom of the loading plate is fixedly connected to two of the fixing plates, the lower parts of the two fixing plates are fixedly connected to the connecting frames, the rotating shaft is arranged between the two connecting frames, and the wheels are arranged at both ends of the rotating shaft;

[0008] A power-assisting mechanism, the power-assisting mechanism is arranged at the bottom of the carrier plate, the power-assisting mechanism comprises a driving motor, a reducer, a transmission shaft, a driving bevel gear and a driven bevel gear, the driving motor is fixedly installed at the bottom of the carrier plate, the reducer is installed at the output end of the driving motor, the output end of the reducer is fixedly connected to the transmission shaft, the surface of the transmission shaft is sleeved with the driving bevel gear, the driven bevel gear is sleeved on the shaft surface of the rotating shaft, and the driving bevel gear and the driven bevel gear are meshed with each other;

[0009] A lifting mechanism, the lifting mechanism is installed at the bottom of the fixed plate, the lifting mechanism is at least four, the lifting mechanism includes a shell, a servo motor, a winding wheel, a ratchet, a first auxiliary wheel, a second auxiliary wheel, a wire rope and a locking member, the servo motor is fixedly installed on the rear side of the shell, the output end of the servo motor is fixedly connected to a synchronous shaft, the surface of the synchronous shaft is respectively sleeved with the winding wheel and the ratchet from the inside to the outside, the first auxiliary wheel is arranged on the right side of the winding wheel, the inner shaft of the first auxiliary wheel is rotatably connected to the first support shaft, the first support shaft is fixedly connected to the rear side of the shell, the second auxiliary wheel is arranged below the first auxiliary wheel, the inner shaft of the second auxiliary wheel is rotatably connected to the second support shaft, the surface of the winding wheel is sleeved with one end of the wire rope, the surfaces of the wire rope are respectively wound around the surfaces of the first auxiliary wheel and the second auxiliary wheel, the other end of the wire rope passes through the shell and extends to the outside of the shell, and one end of the wire rope located on the outside of the shell is fixedly connected to a hook; the locking member is arranged above the ratchet.

[0010] As a preferred technical solution of the present invention, one end of the two fixing plates is provided with an anti-slip pad.

[0011] As a preferred technical solution of the present invention, the loading plate is in a Z-shaped structure.

[0012] As a preferred technical solution of the present invention, diagonal braces are fixedly connected between the two fixing plates and the loading plate.

[0013] As a preferred technical solution of the present invention, a support frame is installed between the two fixing plates.

[0014] As a preferred technical solution of the present invention, a protective cover is provided on the outside of the power-assisting mechanism, and the top of the protective cover is fixedly connected to the bottom of the carrier plate.

[0015] As a preferred technical solution of the present invention, a rotating bearing is provided at the connection between the rotating shaft and the connecting frame.

[0016] As a preferred technical solution of the present invention, the locking member includes a connecting rod, a connecting block, a braking rod and a tension spring, one end of the connecting rod is fixedly connected to the top of the shell and is located above the ratchet, the other end of the connecting rod is fixedly connected to the connecting block, a groove is provided at the bottom of the connecting block, the ratchet is rotatably connected to the groove, the interior of the groove is rotatably connected to the braking rod via a rotating shaft, the braking rod is meshed with the ratchet, and the tension spring is arranged between the connecting block and the braking rod.

[0017] As a preferred technical solution of the present invention, a first electromagnet is installed on the surface of the braking rod, and a second electromagnet is installed on the top of the shell.

[0018] In another aspect, the present invention provides a method for operating a transport trolley for facilitating the transport of prefabricated stairs, comprising the following steps:

[0019] S1, when the transport trolley is used, the transport trolley is pushed to the top of the prefabricated stairs and lifted, the support frame is supported on the ground, and the first electromagnet and the second electromagnet are energized, the first electromagnet drives the braking rod to perform a fan-shaped flipping motion, so that the braking rod is separated from the ratchet wheel, and at the same time the driving motor is controlled to drive the winding wheel to rotate, so that the wire rope can be extended to the embedded parts of the prefabricated stairs;

[0020] S2, the staff hooks the embedded parts of the prefabricated stairs respectively, and controls the driving motor to drive the winding wheel to rotate and recycle the wire rope, so that the prefabricated stairs can be lifted to a certain height, and at the same time, the first electromagnet and the second electromagnet are powered off, and the tension of the tension spring causes the braking rod to reset and mesh with the ratchet teeth;

[0021] S3, when the transport trolley is transporting, the staff uses the controller to control the driving motor to be powered on, and the reducer adjusts the transmission ratio and transmits the power to the transmission shaft, and the transmission shaft drives the active bevel gear to rotate, so that the active bevel gear transmits the power to the driven bevel gear to move, and then the shaft can drive the wheels to rotate to transport the prefabricated stairs.

[0022] Compared with the prior art, the beneficial effects of the present invention are:

[0023] (1) The transport trolley can also be used to transport other construction materials and can be used for more purposes. During the transportation process, the lifting mechanism stairs are used to lift the embedded parts for connection and transportation.

[0024] (2) Through the power-assisting mechanism, when the transport trolley is transporting, the staff uses the controller to control the driving motor to be powered on, and the reducer adjusts the transmission ratio and transmits the power to the transmission shaft. The transmission shaft drives the active bevel gear to rotate, so that the active bevel gear transmits the power to the driven bevel gear to move, and then the shaft drives the wheels to rotate to transport the prefabricated stairs, thereby reducing labor intensity and improving work efficiency.

[0025] (3) Through the provided lifting mechanism, when the wire rope is released, the staff controls the servo motor to drive the synchronous shaft to drive the winding wheel and the ratchet to rotate. The wire rope can be extended by the gravity of the hook, and the first auxiliary wheel and the second auxiliary wheel rotate accordingly. After the wire is released, the ratchet is locked with a locking member to prevent the winding wheel from continuing to rotate. When the wire rope is reeled in, the locking member engaged with the ratchet is opened, and the staff controls the servo motor to drive the synchronous shaft to drive the winding wheel and the ratchet to rotate, so that the wire rope is wound around the surface of the winding wheel, and the first auxiliary wheel and the second auxiliary wheel rotate accordingly.

[0026] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented according to the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a three-dimensional diagram of a transport trolley for facilitating the transport of prefabricated stairs disclosed in the present invention;

[0028] Figure 2 It is a partial bottom view of a transport trolley for facilitating the transport of prefabricated stairs disclosed in the present invention;

[0029] Figure 3 It is a schematic diagram of the structure of a lifting mechanism of a transport trolley for facilitating the transport of prefabricated stairs disclosed in the present invention;

[0030] Figure 4 yes Figure 3 A partial enlarged view of the middle part;

[0031] Figure 5 It is a bottom view of the shell of a transport trolley for facilitating the transport of prefabricated stairs disclosed in the present invention;

[0032] Figure 6 The invention discloses a work flow chart of a transport trolley for facilitating the transport of prefabricated stairs.

[0033] Description of reference numerals: 100 - transport trolley, 110 - loading board, 111 - anti-slip pad, 112 - diagonal brace, 120 - fixing plate, 130 - connecting frame, 140 - rotating shaft, 150 - wheel, 160 - supporting frame, 200 - power assist mechanism, 210 - driving motor, 220 - speed reducer, 230 - transmission shaft, 240 - driving bevel gear, 250 - driven bevel gear, 260 - protective cover, 300 - lifting mechanism, 31 0-housing, 320-servo motor, 321-synchronizing shaft, 330-winding wheel, 340-ratchet, 350-first auxiliary wheel, 351-first supporting shaft, 360-second auxiliary wheel, 361-second supporting shaft, 370-wire rope, 371-hook, 380-locking member, 381-connecting rod, 382-connecting block, 383-control rod, 384-tension spring, 390-first electromagnet, 391-second electromagnet. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0037] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0038] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0039] Embodiment 1

[0040] See attached Figures 1 to 5 As shown, the present invention provides a technical solution: a transport trolley for facilitating the transportation of prefabricated stairs, comprising a transport trolley 100, a power assist mechanism 200 and a lifting mechanism 300.

[0041] See attached Figure 1 As shown, the transport trolley 100 includes a loading plate 110, a fixed plate 120, a connecting frame 130, a rotating shaft 140 and wheels 150. The bottom of the loading plate 110 is fixedly connected to two fixed plates 120, and the bottoms of the two fixed plates 120 are fixedly connected to connecting frames 130. A rotating shaft 140 is arranged between the two connecting frames 130, and wheels 150 are arranged at both ends of the rotating shaft 140.

[0042] In this embodiment, the transport trolley 100 can also transport other construction raw materials through the provided loading plate 110. Meanwhile, during the transportation process, the lifting mechanism 300 is used to connect the stairs and hoist the embedded parts for transportation.

[0043] See attached Figures 1-2 As shown, the power assist mechanism 200 is arranged at the bottom of the carrier plate 110, and the power assist mechanism 200 includes a driving motor 210, a reducer 220, a transmission shaft 230, an active bevel gear 240 and a driven bevel gear 250. The driving motor 210 is fixedly installed at the bottom of the carrier plate 110, and the output end of the driving motor 210 is installed with the reducer 220, and the output end of the reducer 220 is fixedly connected with the transmission shaft 230, and the surface of the transmission shaft 230 is sleeved with the active bevel gear 240, and the driven bevel gear 250 is sleeved on the shaft surface of the rotating shaft 140, and the active bevel gear 240 and the driven bevel gear 250 are meshed with each other.

[0044] In this embodiment, during the transportation process at the construction site, the staff uses the controller to control the driving motor 210 to be powered on. By setting the reducer 220 at the output end of the driving motor 210, the transmission ratio of the driving motor 210 can be reduced, so that the transport cart 100 can run within a suitable speed range to avoid safety hazards to the staff during transportation; the reducer 220 adjusts the transmission ratio and transmits power to the transmission shaft 230, and the transmission shaft 230 drives the active bevel gear 240 to rotate, so that the active bevel gear 240 transmits power to the driven bevel gear 250 to move, and then the rotating shaft 140 can drive the wheel 150 to rotate.

[0045] See attached Figures 2 to 5 As shown, the lifting mechanism 300 is installed at the bottom of the fixed plate 120. There are at least four lifting mechanisms 300. The lifting mechanism 300 includes a housing 310, a servo motor 320, a winding wheel 330, a ratchet 340, a first auxiliary wheel 350, a second auxiliary wheel 360, a wire rope 370 and a locking member 380. The servo motor 320 is fixedly installed on the rear side of the housing 310. The output end of the servo motor 320 is fixedly connected to a synchronous shaft 321. The surface of the synchronous shaft 321 is respectively sleeved with the winding wheel 330 and the ratchet 340 from the inside to the outside. The first auxiliary wheel 350 is arranged on the right side of the winding wheel 330. The inner shaft of the first auxiliary wheel 350 is connected to the inner shaft of the first auxiliary wheel 350. A first supporting shaft 351 is connected, and the first supporting shaft 351 is fixedly connected to the rear side of the shell 310. A second auxiliary wheel 360 is arranged below the first auxiliary wheel 350. The inner shaft of the second auxiliary wheel 360 is rotatably connected to the second supporting shaft 361. The surface of the winding wheel 330 is sleeved with one end of a wire rope 370. The surfaces of the wire rope 370 are respectively wound around the surfaces of the first auxiliary wheel 350 and the second auxiliary wheel 360. The other end of the wire rope 370 passes through the shell 310 and extends to the outside of the shell 310. One end of the wire rope 370 located on the outside of the shell 310 is fixedly connected to a hook 371. A locking member 380 is arranged above the ratchet 340.

[0046] In this embodiment, when the wire rope 370 is paid out, the staff controls the servo motor 320 to drive the synchronous shaft 321 to drive the winding wheel 330 and the ratchet 340 to rotate. The wire rope 370 can be extended by the gravity of the hook 371, and the first auxiliary wheel 350 and the second auxiliary wheel 360 rotate accordingly. After the wire is paid out, the locking member 380 is used to lock the ratchet 340 to prevent the winding wheel 330 from continuing to rotate; when the wire rope 370 is reeled in, the locking member 380 engaged with the ratchet 340 is opened, and the staff controls the servo motor 320 to drive the synchronous shaft 321 to drive the winding wheel 330 and the ratchet 340 to rotate, so that the wire rope 370 is wound around the surface of the winding wheel 330, and drives the first auxiliary wheel 350 and the second auxiliary wheel 360 to rotate accordingly.

[0047] The embodiment of the present invention is also implemented through the following technical solutions.

[0048] In the embodiment of the present invention, one end of the two fixing plates 120 is sleeved with an anti-skid pad 111 . When the transport trolley 100 tilts backward, the anti-skid pad 111 can reduce the wear of the fixing plates 120 .

[0049] In an embodiment of the present invention, the loading plate 110 is in a Z-shaped structure, which can prevent the transported materials from falling when the transport vehicle 100 tilts backward.

[0050] In the embodiment of the present invention, diagonal braces 112 are fixedly connected between the two fixing plates 120 and the loading plate 110 to prevent damage to the loading plate 110 when the transport trolley 100 tilts backward during loading, thereby enhancing the loading capacity of the loading plate 110 and improving the service life of the loading plate 110.

[0051] In the embodiment of the present invention, a support frame 160 is installed between the two fixing plates 120 and can be used to support the ground.

[0052] In an embodiment of the present invention, a protective cover 260 is provided on the outside of the power assist mechanism 200, and the top of the protective cover 260 is fixedly connected to the bottom of the carrier plate 110. Since there is a lot of dust at the construction site, the protective cover 260 is provided to prevent dust from entering the drive motor 210 and causing damage.

[0053] In the embodiment of the present invention, a rotating bearing is provided at the connection between the rotating shaft 140 and the connecting frame 130 . When the transport trolley 100 is running, the rotating bearing can avoid friction between the rotating shaft 140 and the connecting frame 130 .

[0054] In the embodiment of the present invention, the locking member 380 includes a connecting rod 381, a connecting block 382, ​​a control rod 383 and a tension spring 384. One end of the connecting rod 381 is fixedly connected to the top of the housing 310 and is located above the ratchet 340. The other end of the connecting rod 381 is fixedly connected to the connecting block 382. A groove is provided at the bottom of the connecting block 382. The ratchet 340 is rotatably connected to the groove. The interior of the groove is rotatably connected to the control rod 383 through the rotating shaft 140. The control rod 383 is meshed with the ratchet 340. A tension spring 384 is provided between the connecting block 382 and the control rod 383. A first electromagnet 390 is installed on the surface of the control rod 383. A second electromagnet 391 is installed on the top of 10. Before the servo motor 320 drives the winding wheel 330 to extend the wire rope 370, the first electromagnet 390 and the second electromagnet 391 are energized, and the first electromagnet 390 drives the braking rod 383 to perform a fan-shaped flipping motion, so that the braking rod 383 is separated from the ratchet 340 and the wire rope 370 can begin to be extended. After the servo motor 320 drives the winding wheel 330 to extend the wire rope 370, the first electromagnet 390 and the second electromagnet 391 are de-energized, and the tension of the tension spring 384 drives the braking rod 383 to reset and mesh with the ratchet 340, which can prevent the gravity of the hook 371 or the transported material from causing the winding wheel 330 to rotate.

[0055] Embodiment 2

[0056] See attached Figure 6 As shown, a working method of a transport trolley 100 for facilitating the transport of prefabricated stairs provided in an embodiment of the present invention comprises the following steps:

[0057] S1, when the transport trolley 100 is used, the transport trolley 100 is pushed above the prefabricated stairs and lifted, the support frame 160 is supported on the ground, and the first electromagnet 390 and the second electromagnet 391 are energized, the first electromagnet 390 drives the braking rod 383 to perform a fan-shaped flipping motion, so that the braking rod 383 is separated from the ratchet 340, and the servo motor 320 is controlled to drive the winding wheel 330 to rotate, so that the wire rope 370 can be extended to the embedded parts of the prefabricated stairs;

[0058] S2, the staff hooks the hook 371 to the embedded parts of the prefabricated stairs, and controls the servo motor 320 to drive the winding wheel 330 to rotate and recycle the wire rope 370, so that the prefabricated stairs can be lifted to a certain height, and at the same time, the first electromagnet 390 and the second electromagnet 391 are powered off, and the tension of the tension spring 384 causes the braking rod 383 to reset and mesh with the ratchet 340;

[0059] S3, when the transport trolley 100 is transported, the staff uses the controller to control the driving motor 210 to be powered on, and the reducer 220 adjusts the transmission ratio and transmits power to the transmission shaft 230, and the transmission shaft 230 drives the active bevel gear 240 to rotate, so that the active bevel gear 240 transmits power to the driven bevel gear 250 to move, and then the rotating shaft 140 can drive the wheel 150 to rotate to transport the prefabricated stairs.

[0060] Specifically, the working principle of the transport trolley and method for facilitating the transportation of prefabricated stairs is as follows: when the transport trolley 100 is used, the transport trolley 100 is pushed above the prefabricated stairs and the transport trolley is lifted, the support frame 160 is supported on the ground, and the first electromagnet 390 and the second electromagnet 391 are controlled to be energized, the first electromagnet 390 drives the braking rod 383 to perform a fan-shaped flipping motion, so that the braking rod 383 is disengaged from the ratchet 340, and at the same time the servo motor 320 is controlled to drive the winding wheel 330 to rotate, so that the wire rope 370 can be extended to the embedded parts of the prefabricated stairs, and the staff hooks the hooks 371 to the embedded parts of the prefabricated stairs respectively, and controls the servo motor 320 to drive the winding wheel 330 to rotate and recycle the wire rope 370, so that the prefabricated stairs can be lifted to a certain height, and at the same time the first electromagnet 390 and the second electromagnet are controlled. 391 is powered off, and the tension of the tension spring 384 resets the braking rod 383 and meshes with the ratchet 340, so that the gravity of the hook 371 or the transported materials can be avoided to rotate the winding wheel 330. During the transportation at the construction site, the staff uses the controller to control the driving motor 210 to be powered on. By setting the reducer 220 at the output end of the driving motor 210, the transmission ratio of the driving motor 210 can be reduced, so that the transport trolley 100 can run within a suitable speed range to avoid safety hazards to the staff during transportation; the reducer 220 adjusts the transmission ratio and transmits power to the transmission shaft 230, and the transmission shaft 230 drives the active bevel gear 240 to rotate, so that the active bevel gear 240 transmits power to the driven bevel gear 250 to move, and then the shaft 140 can drive the wheel 150 to rotate.

[0061] It should be noted that the specific models and specifications of the drive motor 210, the servo motor 320, the first electromagnet 390 and the second electromagnet 391 need to be selected and determined according to the actual specifications of the device, and the specific selection calculation method adopts the existing technology in this field, so it will not be described in detail.

[0062] The power supply and principles of the driving motor 210 , the servo motor 320 , the first electromagnet 390 and the second electromagnet 391 are clear to those skilled in the art and will not be described in detail herein.

[0063] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A transport trolley for facilitating the transport of prefabricated stairs, characterized in that: include: A transport trolley (100), the transport trolley (100) comprising a loading plate (110), a fixing plate (120), a connecting frame (130), a rotating shaft (140) and wheels (150); the loading plate (110) is in a Z-shaped structure; the bottom of the loading plate (110) is fixedly connected to two fixing plates (120); the bottoms of the two fixing plates (120) are both fixedly connected to the connecting frames (130); one end of the two fixing plates (120) is sleeved with an anti-slip pad (111); the rotating shaft (140) is arranged between the two connecting frames (130); and the wheels (150) are arranged at both ends of the rotating shaft (140); A power-assisting mechanism (200), the power-assisting mechanism (200) being arranged at the bottom of the object carrier (110), the power-assisting mechanism (200) comprising a driving motor (210), a reducer (220), a transmission shaft (230), a driving bevel gear (240) and a driven bevel gear (250), the driving motor (210) being fixedly mounted at the bottom of the object carrier (110), the reducer (220) being mounted at the output end of the driving motor (210), the transmission shaft (230) being fixedly connected at the output end of the reducer (220), the driving bevel gear (240) being sleeved on the surface of the transmission shaft (230), the driven bevel gear (250) being sleeved on the shaft surface of the rotating shaft (140), and the driving bevel gear (240) and the driven bevel gear (250) being meshed with each other; A lifting mechanism (300), the lifting mechanism (300) is installed at the bottom of the fixed plate (120), the lifting mechanism (300) is at least four, the lifting mechanism (300) comprises a housing (310), a servo motor (320), a winding wheel (330), a ratchet (340), a first auxiliary wheel (350), a second auxiliary wheel (360), a wire rope (370) and a locking member (380), the servo motor (320) is fixedly installed on the rear side of the housing (310), the output end of the servo motor (320) is fixedly connected to a synchronous shaft (321), the surface of the synchronous shaft (321) is respectively sleeved with the winding wheel (330) and the ratchet (340) from the inside to the outside, the first auxiliary wheel (350) is arranged on the right side of the winding wheel (330), and the inner shaft of the first auxiliary wheel (350) is rotatably connected to the second auxiliary wheel (360) A first support shaft (351) is provided, the first support shaft (351) is fixedly connected to the rear side of the shell (310), the second auxiliary wheel (360) is arranged below the first auxiliary wheel (350), the inner shaft of the second auxiliary wheel (360) is rotatably connected to the second support shaft (361), one end of the steel wire rope (370) is sleeved on the surface of the winding wheel (330), the surface of the steel wire rope (370) is respectively wound around the surface of the first auxiliary wheel (350) and the second auxiliary wheel (360), the other end of the steel wire rope (370) passes through the shell (310) and extends to the outside of the shell (310), and one end of the steel wire rope (370) located outside the shell (310) is fixedly connected to a hook (371); the locking member (380) is arranged above the ratchet wheel (340).

2. A transport trolley for facilitating the transport of prefabricated stairs according to claim 1, characterized in that: A diagonal brace (112) is fixedly connected between the two fixing plates (120) and the object carrying plate (110).

3. A transport trolley for facilitating the transport of prefabricated stairs according to claim 1, characterized in that: A support frame (160) is installed between the two fixing plates (120).

4. A transport trolley for facilitating the transport of prefabricated stairs according to claim 1, characterized in that: A protective cover (260) is provided outside the power-assisting mechanism (200), and the top of the protective cover (260) is fixedly connected to the bottom of the object carrier (110).

5. The transport trolley for facilitating the transport of prefabricated stairs according to claim 1, characterized in that: A rotating bearing is provided at the connection between the rotating shaft (140) and the connecting frame (130).

6. A transport trolley for facilitating the transport of prefabricated stairs according to claim 3, characterized in that: The locking member (380) comprises a connecting rod (381), a connecting block (382), a control rod (383) and a tension spring (384), one end of the connecting rod (381) is fixedly connected to the top of the housing (310) and is located above the ratchet (340), the other end of the connecting rod (381) is fixedly connected to the connecting block (382), a groove is provided at the bottom of the connecting block (382), the ratchet (340) is rotatably connected to the groove, the interior of the groove is rotatably connected to the control rod (383) via a rotating shaft, the control rod (383) is meshedly connected to the ratchet (340), and the tension spring (384) is provided between the connecting block (382) and the control rod (383).

7. A transport trolley for facilitating the transport of prefabricated stairs according to claim 6, characterized in that: A first electromagnet (390) is installed on the surface of the braking rod, and a second electromagnet (391) is installed on the top of the housing.

8. A method for operating a transport trolley for facilitating the transport of prefabricated stairs, applied to the transport trolley for facilitating the transport of prefabricated stairs as claimed in claim 7, characterized in that: The following steps are involved: S1, when the transport trolley (100) is used, the transport trolley (100) is pushed to the top of the prefabricated staircase and the transport trolley is lifted, the support frame (160) is supported on the ground, and the first electromagnet (390) and the second electromagnet (391) are controlled to be energized, the first electromagnet (390) drives the braking rod (383) to perform a fan-shaped flipping motion, so that the braking rod (383) is separated from the ratchet wheel, and at the same time the servo motor (320) is controlled to drive the winding wheel to rotate, so that the wire rope (370) can be extended to the embedded parts of the prefabricated staircase; S2, the staff hooks the hooks (371) to the embedded parts of the prefabricated stairs, and controls the servo motor (320) to drive the winding wheel (330) to rotate and recycle the wire rope (370), so that the prefabricated stairs can be lifted to a certain height, and at the same time, the first electromagnet (390) and the second electromagnet (391) are controlled to be powered off, and the tension of the tension spring (384) causes the braking rod (383) to be reset and mesh with the ratchet (340) teeth; S3, when the transport trolley (100) is being transported, the staff uses the controller to control the driving motor (210) to be powered on, and the reducer (220) adjusts the transmission ratio and transmits power to the transmission shaft (230), and the transmission shaft (230) drives the active bevel gear (240) to rotate, so that the active bevel gear (240) transmits power to the driven bevel gear (250), and then the rotating shaft (140) drives the wheels (150) to rotate to transport the prefabricated stairs.

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