Building fabricated stair installation positioning device and construction method

Abstract

The application discloses a building fabricated stair installation positioning device and a construction method, which comprises a main frame, a synchronous adjusting structure, the synchronous adjusting structure comprising a first adjusting part and a second adjusting part, the first adjusting part comprising a first limiting plate fixedly installed on the outer wall of one side of the main frame, the inside of the first limiting plate being provided with a gear slot, the outer wall of the first limiting plate being provided with three groups of movable plates, the inner walls on the two sides of each group of movable plates being provided with twelve groups of gear racks and pinions, the top of the movable plate being provided with a first electric control box, the first electric control box being electrically connected with a first signal processing box, the gear racks and pinions being engaged with the gear slot, the outer wall of one side of the first electric control box being fixedly installed with the first signal processing box, the first adjusting part being used for collecting hoisting site and stair posture data, the second adjusting part being used for driving a hoisting chain control box to move horizontally and form a transverse counterforce support, so that the hoisting and synchronous positioning of the stair are achieved, the positioning and installation effect of the stair is improved, and the assembly efficiency of the prefabricated stair is improved.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, and more specifically, to a prefabricated building staircase installation and positioning device and construction method. Background Technology

[0002] With the rapid development of prefabricated building technology, prefabricated stairs, as one of the important components of prefabricated buildings, directly affect the overall construction progress and structural safety of the building through their on-site installation quality and efficiency. The installation of prefabricated stairs requires precise alignment with the stair beams and platform slabs of the upper and lower floors. The core requirement is to ensure that the horizontal elevation, axial position, and slope angle of the stairs meet the design specifications, while also ensuring the stability of the connection nodes.

[0003] The invention disclosed in CN112267692A relates to a comprehensive hoisting equipment and construction method for prefabricated building components, effectively solving the problems of low construction efficiency and difficult positioning in the construction process of prefabricated buildings. The technical solution includes a dedicated steel structure lifting platform, which has a first track layer, a second track layer, and a third track layer arranged from bottom to top. The first track layer is equipped with a horizontal prefabricated component hoisting device for hoisting horizontal prefabricated floor slabs, balconies, air conditioning panels, etc. The second track layer is equipped with a temporary positioning support system for vertical prefabricated components for temporarily clamping and positioning and adjusting the vertical prefabricated components. The third track layer is equipped with a vertical prefabricated component and stair hoisting device for hoisting vertical prefabricated components such as wall panels, bay windows, and stairs. This invention enables precise hoisting and installation positioning of vertical components, greatly improving work efficiency and safety.

[0004] However, the aforementioned patents still have the following problems: In the installation of prefabricated stairs, hoisting and positioning are two crucial steps. Existing devices typically require first using hoisting equipment to lift the stairs to a general position, and then using positioning equipment to precisely adjust their position. This step-by-step approach not only increases construction time and reduces overall efficiency, but also, during the switching between hoisting and positioning equipment, improper operation or equipment inaccuracies can lead to deviations in the stair installation position, affecting installation quality. More importantly, existing devices cannot simultaneously position and install the stairs during hoisting, resulting in a time interval and operational coordination problem between the two steps, making it difficult to achieve efficient and precise installation. Therefore, developing a device and method that can simultaneously position and install stairs during hoisting is of great significance for further improving the installation efficiency and quality of prefabricated stairs. Summary of the Invention

[0005] The purpose of this invention is to solve the technical problem of asynchronous positioning and installation mentioned above, and to provide a positioning device for prefabricated building staircases.

[0006] The present invention adopts the following technical solution:

[0007] A prefabricated building staircase installation and positioning device, comprising:

[0008] The main frame is rectangular.

[0009] The synchronous adjustment structure includes a first adjustment part and a second adjustment part. The first adjustment part includes a first limiting plate fixedly installed on the outer wall of one side of the main frame. The first limiting plate has a toothed groove inside. Three sets of movable plates are provided on the outer wall of the first limiting plate. Each set of movable plates has twelve sets of rack and pinion gears on its two inner walls. A first electrical control box is provided on the top of the movable plates. The first electrical control box is electrically connected to a first signal processing box. The rack and pinion gears mesh with the toothed grooves. A first signal processing box is fixedly installed on the outer wall of one side of the first electrical control box. A second electrical control box is fixedly installed on the top of the main frame. The second electrical control box is connected to the three... A set of first wires is fixedly installed between each of the first signal processing boxes; the second adjustment part includes a slide groove at the bottom of the main frame, an electric threaded rod is axially limited and rotatably installed inside the slide groove, a slider is slidably installed inside the slide groove, a threaded sleeve is fixedly embedded inside the slider, the threaded sleeve is circumferentially limited relative to the slider, the electric threaded rod is threadedly connected to the threaded sleeve, a third electrical control box is fixedly installed on the top of the main frame, a fourth electrical control box is fixedly installed on one side of the outer wall of the main frame, the fourth electrical control box is electrically connected to the drive end of the electric threaded rod, and a set of first wires is fixedly installed between the third electrical control box and the fourth electrical control box.

[0010] In a preferred embodiment of the present invention, the first adjustment unit further includes a set of real-time camera modules, a set of first horizontal testers, and a set of first vertical testers, which are respectively fixedly installed on the outer wall of one side of the three sets of movable plates and used to collect information on the installation posture of the stairs.

[0011] In a preferred embodiment of the present invention, the second adjustment part further includes a chain control box fixedly installed at the bottom of the slider, the bottom of the chain control box is provided with a chain, and the bottom of the chain is provided with a hook.

[0012] In a preferred embodiment of the present invention, the second adjustment part further includes a first fixing plate fixedly installed on the outer wall of one side of the main frame, a second fixing plate fixedly installed on the top of the first fixing plate, a third fixing plate fixedly installed on the top of the main frame, a hydraulic cylinder fixedly installed on the outer wall of one side of the third fixing plate, a hydraulic push rod fixedly installed at the output end of the hydraulic cylinder, and the telescopic inner rod of the hydraulic push rod passes through the second fixing plate and extends and retracts along the guide of the second fixing plate.

[0013] In a preferred embodiment of the present invention, the second adjusting part further includes a connecting rod fixedly installed at one end of the telescopic inner rod of the hydraulic push rod. A first positioning plate is fixedly installed at one end of the connecting rod. The first positioning plate is used to abut against the wall on the other side to form a lateral reaction support for the main frame. A second horizontal tester is fixedly installed on the top of the first positioning plate. A second vertical tester is fixedly installed on one outer wall of the first positioning plate. A fifth electrical control box is fixedly installed on the other outer wall of the first positioning plate. The fifth electrical control box is electrically connected to the second horizontal tester and the second vertical tester. An oil pump box is fixedly installed on the top of the main frame. An oil supply pipe is fixedly installed between the oil pump box and the hydraulic cylinder.

[0014] In a preferred embodiment of the present invention, a first fixed connecting plate is fixedly installed on the outer wall of the other side of the main frame. The first fixed connecting plate has four sets of first mounting holes inside, and a first limiting bolt is provided inside the first mounting hole. An auxiliary bracket is fixedly installed on the top of the main frame. A second fixed connecting plate is fixedly installed on the outer wall of one side of the auxiliary bracket. The second fixed connecting plate has six sets of second mounting holes inside, and a second limiting bolt is provided inside the second mounting hole.

[0015] In a preferred embodiment of the present invention, a first prefabricated stair module is provided on the outside of the main frame. Four sets of positioning sleeves are fixedly installed at the connecting end of the first prefabricated stair module. Positioning rods are fixedly installed inside the positioning sleeves. The exposed end of the positioning rods is provided with an external thread section for installing locking parts.

[0016] In a preferred embodiment of the present invention, a second prefabricated stair module is provided on the outside of the main frame. The second prefabricated stair module has four sets of positioning holes inside, and the positioning rod is inserted and snapped into the inside of the positioning holes.

[0017] In a preferred embodiment of the present invention, the top of the second prefabricated staircase module is pre-embedded with six sets of pre-embedded threaded sleeves, the inside of which is helically installed with threaded rods, the top of which is fixedly installed with lifting rings, and the inside of which is provided with lifting straps, which are suspended on the surface of the hook.

[0018] This invention also discloses a construction method for a prefabricated building staircase installation and positioning device, comprising the following steps:

[0019] Step S1: Press one outer wall of the first fixed connecting plate and the second fixed connecting plate against one side of the wall. Rotate the first limit bolt and the second limit bolt to fix the first fixed connecting plate and the second fixed connecting plate to the wall. Rotate the lifting ring to screw the threaded rod into the inside of the pre-embedded threaded sleeve. Pass the lifting strap through the six sets of lifting rings. Start the lifting chain control box, adjust the height of the lifting chain, hang the lifting strap on the hook, and start the lifting chain control box again to lift the second prefabricated stair module as a whole.

[0020] Step S2: The command is transmitted to the three sets of first signal processing boxes through the second electrical control box and the three sets of first wires. The first electrical control box is started, which drives the rack and pinion gears on each movable plate to move along the tooth groove, causing the movable plate to move horizontally on the outer wall of the first limit plate, adjusting the position of the three sets of movable plates. The hoisting site is monitored in real time through the real-time camera module. The horizontal reference value of the staircase installation posture is collected through the first horizontal tester, and the vertical reference value of the staircase installation posture is collected through the first vertical tester.

[0021] Step S3: The electric threaded rod is started through the third and fourth electrical control boxes and a set of first wires, driving the electric threaded rod to rotate. The threaded sleeve with circumferential limit drives the slider to slide inside the slide groove, adjusting the position of the hanging chain control box, and performing horizontal displacement of the second prefabricated stair module. The hydraulic cylinder is commanded and controlled through the oil supply pipe and oil pump box, driving the hydraulic push rod and connecting rod to move, pushing the first positioning plate to be tightly attached to the other side wall and forming a lateral reaction force support. The second horizontal tester is used to perform auxiliary horizontal value measurement, the second vertical tester is used to perform auxiliary vertical value measurement, and the fifth electrical control box supplies power to the second horizontal tester and the second vertical tester.

[0022] Step S4: Hoist the second prefabricated stair module between the two sets of first prefabricated stair modules, align the positioning hole with the positioning rod, and insert and snap the positioning rod into the positioning hole after it is guided by the positioning sleeve. After checking the horizontal and vertical status of the second prefabricated stair module, install the locking piece on the exposed threaded section of the positioning rod, and then fill the gap between the positioning hole and the positioning rod with concrete and compact it.

[0023] Beneficial effects

[0024] 1. It serves the purpose of hoisting and synchronously positioning the stairs, improving the positioning and installation effect of the stairs, increasing the assembly efficiency of prefabricated stairs, and reducing the equipment used for stair installation and positioning through synchronous structure, thereby reducing equipment investment costs and improving construction production efficiency.

[0025] 2. It serves to fix the main frame to the wall, improve the fixation strength of the main frame, enhance the stability of the main frame installation, improve the safety of the device, and increase the load-bearing capacity of the main frame.

[0026] 3. It serves the purpose of hoisting and installing stairs, improving the transportation efficiency and stability of prefabricated stairs, and optimizing the user experience of the device.

[0027] 4. The installation and positioning device adopts a modular design concept, and each component can be installed and disassembled independently, making the device more convenient during transportation and storage, and also facilitating rapid assembly and debugging on the construction site. The layout and function of the device can be flexibly adjusted according to different construction environments and requirements.

[0028] 5. Data recorded by the real-time camera module, level tester, and vertical tester can be stored and analyzed. By analyzing this data, construction personnel can understand the changes in various parameters during staircase installation, promptly identify and improve any problems encountered, and the data provides a reliable basis for subsequent quality acceptance, thus contributing to improved project quality. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of the present invention;

[0030] Figure 2 This is a schematic diagram of the main frame structure of the present invention;

[0031] Figure 3 This is a front view of the main frame of the present invention;

[0032] Figure 4 This is a schematic diagram of the fourth electrical control box structure of the present invention;

[0033] Figure 5 This is a schematic diagram of the first fixing plate structure of the present invention;

[0034] Figure 6 This is a schematic diagram of the movable plate structure of the present invention;

[0035] Figure 7 This is an enlarged view of part A of the present invention;

[0036] Figure 8 This is a schematic diagram of the first prefabricated staircase module structure of the present invention;

[0037] Figure 9 This is a schematic diagram of the second prefabricated staircase module of the present invention.

[0038] In the diagram: 10. Main frame; 11. Auxiliary support; 12. First fixed connecting plate; 13. First mounting hole; 14. First limit bolt; 15. Second fixed connecting plate; 16. Second mounting hole; 17. Second limit bolt; 18. First limit plate; 19. Gear groove; 20. Movable plate; 21. Rack and pinion; 22. First electrical control box; 23. First signal processing box; 24. Real-time camera module; 25. First horizontal tester; 26. First vertical tester; 27. First wire; 28. Second electrical control box; 29. ​​Third electrical control box; 30. Fourth electrical control box; 31. Slide groove; 32. Slider; 33. Screw 34. Threaded sleeve; 35. Electric threaded rod; 36. Chain control box; 37. Chain; 38. Hook; 39. First fixing plate; 40. Second fixing plate; 41. Third fixing plate; 42. Hydraulic cylinder; 43. Oil supply pipe; 44. Oil pump box; 45. Hydraulic push rod; 46. Connecting rod; 47. First positioning plate; 48. Second horizontal tester; 49. Second vertical tester; 50. Fifth electrical control box; 51. First prefabricated stair module; 52. Positioning sleeve; 53. Positioning rod; 54. Second prefabricated stair module; 55. Positioning hole; 56. Embedded threaded sleeve; 57. Threaded rod; 58. Lifting ring. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0040] Example 1

[0041] As shown in the figure, this invention discloses an installation and positioning device and construction method for prefabricated building staircases, including a main frame 10, which is rectangular; a synchronous adjustment structure, comprising a first adjustment part and a second adjustment part. The first adjustment part includes a first limiting plate 18 fixedly installed on one side of the outer wall of the main frame 10. The first limiting plate 18 has a toothed groove 19 inside. Three sets of movable plates 20 are provided on the outer wall of the first limiting plate 18. Each set of movable plates 20 has twelve sets of rack and pinion gears 21 on both sides of its inner wall. A first electrical control box 22 is provided on the top of the movable plates 20. The first electrical control box 22 is electrically connected to a first signal processing box 23. The rack and pinion gears 21 mesh with the toothed groove 19. The first signal processing box 23 is fixedly installed on one side of the outer wall of the first electrical control box 22. The top of the main frame 10 is fixedly installed with... The system includes a second electrical control box 28, with a set of first wires 27 fixedly installed between the second electrical control box 28 and each of the three sets of first signal processing boxes 23; the second adjustment part includes a slide groove 31 opened at the bottom of the main frame 10, an electric threaded rod 34 axially limited and rotatably installed inside the slide groove 31, a slider 32 slidably installed inside the slide groove 31, a threaded sleeve 33 fixedly embedded inside the slider 32, the threaded sleeve 33 circumferentially limited relative to the slider 32, the electric threaded rod 34 and the threaded sleeve 33 being threadedly connected; a third electrical control box 29 is fixedly installed on the top of the main frame 10; a fourth electrical control box 30 is fixedly installed on one side of the outer wall of the main frame 10, the fourth electrical control box 30 is electrically connected to the drive end of the electric threaded rod 34; a set of first wires 27 is fixedly installed between the third electrical control box 29 and the fourth electrical control box 30. The staircase and positioning equipment are synchronously adjusted by the synchronous adjustment structure. The second electrical control box 28 and three sets of first wires 27 transmit commands to the three sets of first signal processing boxes 23, driving the first electrical control box 22 to start. This drives the rack and pinion gears 21 on each movable plate 20 to rotate. Since the rack and pinion gears 21 and the tooth grooves 19 mesh, a gear and tooth groove transmission effect is formed, driving the movable plate 20 to move horizontally on the outer wall of the first limiting plate 18, adjusting the position of the three sets of movable plates 20. The electric threaded rod 34 is driven by the third electrical control box 29, the fourth electrical control box 30 and one set of first wires 27, driving the electric threaded rod 34 to rotate. The threaded sleeve 33 with circumferential limit drives the slider 32 to slide inside the slide groove 31, causing the slider 32 to make horizontal displacement.

[0042] like Figure 1 and Figure 3 As shown, the first adjustment unit also includes a set of real-time camera modules 24, a set of first level testers 25, and a set of first vertical testers 26, which are respectively fixedly installed on the outer wall of one side of the three sets of movable plates 20. The real-time camera modules 24 monitor the hoisting site in real time, the first level testers 25 collect horizontal reference values ​​of the staircase installation posture, and the first vertical testers 26 collect vertical reference values ​​of the staircase installation posture.

[0043] Specifically, such as Figure 1 and Figure 3 As shown, the second adjustment unit also includes a chain control box 35 fixedly installed at the bottom of the slider 32. A chain 36 is provided at the bottom of the chain control box 35, and a hook 37 is provided at the bottom of the chain 36. Activating the chain control box 35 adjusts the length of the chain 36 and the height of the hook 37. The second electrical control box 28, the third electrical control box 29, and the chain control box 35 are controlled by an external networked control system, allowing for real-time observation and adjustment of the staircase position based on detection data.

[0044] like Figure 1 , Figure 3 and Figure 5 As shown, the second adjustment unit also includes a first fixing plate 38 fixedly installed on one side of the outer wall of the main frame 10. A second fixing plate 39 is fixedly installed on the top of the first fixing plate 38, and a third fixing plate 40 is fixedly installed on the top of the main frame 10. A hydraulic cylinder 41 is fixedly installed on one side of the outer wall of the third fixing plate 40. A hydraulic push rod 44 is fixedly installed at the output end of the hydraulic cylinder 41, and the telescopic inner rod of the hydraulic push rod 44 is located inside the second fixing plate 39. The second fixing plate 39 is fixed by the first fixing plate 38, and the hydraulic cylinder 41 is fixed by the third fixing plate 40. The hydraulic cylinder 41 is driven and controlled by the oil supply pipe 42 and the oil pump box 43.

[0045] like Figure 1 , Figure 3 and Figure 5 As shown, the second adjustment unit also includes a connecting rod 45 fixedly installed at one end of the telescopic inner rod of the hydraulic push rod 44. A first positioning plate 46 is fixedly installed at one end of the connecting rod 45. A second horizontal tester 47 is fixedly installed on the top of the first positioning plate 46. A second vertical tester 48 is fixedly installed on one side of the outer wall of the first positioning plate 46. A fifth electrical control box 49 is fixedly installed on the other side of the outer wall of the first positioning plate 46. The fifth electrical control box 49 is electrically connected to the second horizontal tester 47 and the second vertical tester 48. An oil pump box 43 is fixedly installed on the top of the main frame 10. An oil pipe 42 is fixedly installed between the oil pump box 43 and the hydraulic cylinder 41. Start the hydraulic cylinder 41 to push the hydraulic push rod 44 and connecting rod 45 to move, adjust the position of the first positioning plate 46, push the first positioning plate 46 to be in close contact with the other side wall and form a lateral reaction force support, perform auxiliary horizontal value measurement through the second horizontal tester 47, perform auxiliary vertical value measurement through the second vertical tester 48, and supply power to the second horizontal tester 47 and the second vertical tester 48 through the fifth electrical control box 49.

[0046] This invention comprises a main frame 10, a first limiting plate 18, a toothed groove 19, a movable plate 20, a rack and pinion gear 21, a first electrical control box 22, a first signal processing box 23, a real-time camera module 24, a first horizontal tester 25, a first vertical tester 26, a first wire 27, a second electrical control box 28, a third electrical control box 29, a fourth electrical control box 30, a sliding groove 31, a slider 32, a threaded sleeve 33, an electric threaded rod 34, a chain control box 35, a chain 36, a hook 37, and a first fixing plate 38. The structure of the second fixing plate 39, the third fixing plate 40, the hydraulic cylinder 41, the oil supply pipe 42, the oil pump box 43, the hydraulic push rod 44, the first positioning plate 46, the second horizontal tester 47, the second vertical tester 48, and the fifth electrical control box 49 achieves the purpose of hoisting and synchronously positioning the stairs, improving the positioning and installation effect of the stairs, increasing the assembly efficiency of prefabricated stairs, reducing the equipment used for stair installation and positioning through the synchronous structure, reducing equipment investment costs, and improving construction production efficiency.

[0047] Example 2

[0048] Based on Embodiment 1, a first fixing connecting plate 12 is fixedly installed on the other outer wall of the main frame 10. The first fixing connecting plate 12 has four sets of first mounting holes 13 inside, and a first limiting bolt 14 is installed inside each of the first mounting holes 13. An auxiliary bracket 11 is fixedly installed on the top of the main frame 10. A second fixing connecting plate 15 is fixedly installed on one outer wall of the auxiliary bracket 11. The second fixing connecting plate 15 has six sets of second mounting holes 16 inside, and a second limiting bolt 17 is installed inside each of the second mounting holes 16. The first fixing connecting plate 12 and the second fixing connecting plate 15 are pressed tightly against a wall surface, and the first limiting bolt 14 and the second limiting bolt 17 are rotated to fix the first fixing connecting plate 12 and the second fixing connecting plate 15 to the wall surface.

[0049] Based on the above, the structure of the main frame 10, auxiliary support 11, first fixed connecting plate 12, first mounting hole 13, first limiting bolt 14, second fixed connecting plate 15, second mounting hole 16 and second limiting bolt 17 achieves the purpose of fixing the main frame 10 to the wall, improving the fixing strength of the main frame 10, enhancing the stability of the main frame 10 installation, improving the safety of the device, and improving the load-bearing capacity of the main frame 10.

[0050] Example 3

[0051] Based on Embodiment 1 and Embodiment 2, a first prefabricated stair module 50 is provided on the outside of the main frame 10. Four sets of positioning sleeves 51 are fixedly installed at the connecting end of the first prefabricated stair module 50. A positioning rod 52 is fixedly installed inside the positioning sleeve 51. The exposed end of the positioning rod 52 is provided with an external thread section for installing a locking component.

[0052] like Figure 1 , Figure 8 and Figure 9 As shown, a second prefabricated stair module 53 is provided on the outside of the main frame 10. The second prefabricated stair module 53 has four sets of positioning holes 54 inside. The positioning rod 52 is inserted and snapped into the inside of the positioning hole 54.

[0053] like Figure 1 , Figure 3 , Figure 8 and Figure 9 As shown, the top of the second prefabricated stair module 53 has six sets of pre-embedded threaded sleeves 55. Threaded rods 56 are spirally installed inside the pre-embedded threaded sleeves 55. Lifting rings 57 are fixedly installed on the top of the threaded rods 56. Lifting straps are installed inside the lifting rings 57 and are suspended from the surface of the hooks 37. By rotating the lifting rings 57, the threaded rods 56 are spirally installed inside the pre-embedded threaded sleeves 55. The lifting straps are then threaded between the six sets of lifting rings 57. The chain control box 35 is activated, and the height of the chain 36 is adjusted. The lifting straps are then suspended from the hooks 37. The chain control box 35 is activated again to lift the second prefabricated stair module 53 as a whole. The positioning holes 54 are aligned with the positioning rods 52, and the positioning rods 52 are inserted into the positioning holes 54, completing the stair positioning and installation.

[0054] In summary, the structure of the lifting chain control box 35, lifting chain 36, hook 37, first prefabricated stair module 50, positioning sleeve 51, positioning rod 52, second prefabricated stair module 53, positioning hole 54, pre-embedded threaded sleeve 55, threaded rod 56, and lifting ring 57 achieves the purpose of hoisting and installing the staircase, improves the transportation efficiency of the prefabricated staircase, enhances the stability of the prefabricated staircase transportation, and optimizes the user experience of the device.

[0055] Working principle: The second electrical control box 28 transmits commands to the three sets of first signal processing boxes 23 via three sets of first wires 27, driving the first electrical control box 22 to start, which in turn drives the rack and pinion gears 21 on each movable plate 20 to rotate. Because the rack and pinion gears 21 mesh with the toothed grooves 19 in the first limiting plate 18, a gear-toothed transmission effect is formed, causing the movable plate 20 to translate on the outer wall of the first limiting plate 18, adjusting the position of the three sets of movable plates 20. The real-time camera module 24 on the movable plate 20 can monitor the hoisting site in real time. The first horizontal tester 25 and the first vertical tester 26 respectively collect horizontal and vertical reference values ​​of the staircase installation posture. The third electrical control box 29 and the fourth electrical control box 30 drive the electric threaded rod 34 to rotate via one set of first wires 27. The electric threaded rod 34 cooperates with the circumferentially limited threaded sleeve 33, causing the slider 32 to slide within the groove 31 to achieve horizontal displacement. The chain control box 35 at the bottom of the slider 32 can adjust the length of the chain 36, thereby adjusting the height of the hook 37. The second electrical control box 28, the third electrical control box 29, and the chain control box 35 are controlled by an external networked control system. This system allows for real-time observation and adjustment of the staircase position based on detection data. The first fixing plate 38 fixes the second fixing plate 39, and the third fixing plate 40 fixes the hydraulic cylinder 41. The oil pump box 43 drives and controls the hydraulic cylinder 41 via the oil pipe 42. Activating the hydraulic cylinder 41 pushes the hydraulic push rod 44 and connecting rod 45 to move, adjusting the position of the first positioning plate 46 so that it is flush against the opposite wall and forms a lateral reaction force support. The second horizontal tester 47 and the second vertical tester 48 on the first positioning plate 46 respectively assist in measuring horizontal and vertical values, and the fifth electrical control box 49 provides power to them. The first fixed connecting plate 12 on the outer wall of the other side of the main frame 10 is tightly attached to one side wall and fixed by rotating the first limiting bolt 14; the second fixed connecting plate 15 on the auxiliary bracket 11 is also tightly attached to one side wall and fixed by rotating the second limiting bolt 17. The positioning sleeve 51 at the connection end of the first prefabricated stair module 50 has a positioning rod 52, and the second prefabricated stair module 53 has a positioning hole 54. The positioning rod 52 can be inserted and snapped into the positioning hole 54. The second prefabricated stair module 53 has a pre-embedded threaded sleeve 55 at the top. Rotate the lifting ring 57 to screw the threaded rod 56 into the pre-embedded threaded sleeve 55. Use a lifting strap to pass between the six sets of lifting rings 57. Start the chain control box 35 to adjust the height of the chain 36. Hang the lifting strap on the hook 37. Start the chain control box 35 again to lift the second prefabricated stair module 53. Align the positioning hole 54 with the positioning rod 52 and insert the positioning rod 52 into the positioning hole 54. After checking the horizontal and vertical status of the stair, limit the position with the locking device. Then pour concrete into the gap between the positioning hole 54 and the positioning rod 52 and fill it tightly to complete the stair installation.

[0056] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and its improved concepts, should be covered within the scope of protection of the present invention.

Claims

1. A prefabricated building staircase installation and positioning device, characterized in that, include: Main frame (10), the main frame (10) is rectangular; The synchronous adjustment structure includes a first adjustment part and a second adjustment part. The first adjustment part includes a first limiting plate (18) fixedly installed on the outer wall of one side of the main frame (10). The first limiting plate (18) has a toothed groove (19) inside. Three sets of movable plates (20) are provided on the outer wall of the first limiting plate (18). Twelve sets of rack and pinion gears (21) are provided on the inner walls of both sides of each set of movable plates (20). A first electrical control box (22) is provided on the top of the movable plate (20). The first electrical control box (22) is electrically connected to the first signal processing box (23). The rack and pinion gears (21) mesh with the toothed groove (19). The first signal processing box (23) is fixedly installed on the outer wall of one side of the first electrical control box (22). A second electrical control box (28) is fixedly installed on the top of the main frame (10). A set of first wires (27) is fixedly installed between the second electrical control box (28) and the three sets of first signal processing boxes (23); the second adjustment part includes a slide groove (31) opened at the bottom of the main frame (10), an electric threaded rod (34) is axially limited and rotatably installed inside the slide groove (31), a slider (32) is slidably installed inside the slide groove (31), a threaded sleeve (33) is fixedly embedded inside the slider (32), the threaded sleeve (33) is circumferentially limited relative to the slider (32), the electric threaded rod (34) is threadedly connected to the threaded sleeve (33), a third electrical control box (29) is fixedly installed on the top of the main frame (10), a fourth electrical control box (30) is fixedly installed on one side of the outer wall of the main frame (10), the fourth electrical control box (30) is electrically connected to the drive end of the electric threaded rod (34), and a set of first wires (27) is fixedly installed between the third electrical control box (29) and the fourth electrical control box (30).

2. The prefabricated building staircase installation and positioning device according to claim 1, characterized in that, The first adjustment unit also includes a set of real-time camera modules (24), a set of first horizontal testers (25), and a set of first vertical testers (26), which are respectively fixedly installed on the outer wall of one side of the three sets of movable plates (20) and used to collect information on the installation posture of the stairs.

3. The prefabricated building staircase installation and positioning device according to claim 1, characterized in that, The second adjustment unit also includes a chain control box (35) fixedly installed at the bottom of the slider (32), a chain (36) is provided at the bottom of the chain control box (35), and a hook (37) is provided at the bottom of the chain (36).

4. The prefabricated building staircase installation and positioning device according to claim 1, characterized in that, The second adjustment unit also includes a first fixing plate (38) fixedly installed on the outer wall of one side of the main frame (10), a second fixing plate (39) fixedly installed on the top of the first fixing plate (38), a third fixing plate (40) fixedly installed on the top of the main frame (10), a hydraulic cylinder (41) fixedly installed on the outer wall of one side of the third fixing plate (40), a hydraulic push rod (44) fixedly installed at the output end of the hydraulic cylinder (41), and the telescopic inner rod of the hydraulic push rod (44) passes through the second fixing plate (39) and extends and retracts along the guide of the second fixing plate (39).

5. The prefabricated building staircase installation and positioning device according to claim 1, characterized in that, The second adjustment unit also includes a connecting rod (45) fixedly installed at one end of the telescopic inner rod of the hydraulic push rod (44). A first positioning plate (46) is fixedly installed at one end of the connecting rod (45). The first positioning plate (46) is used to abut against the wall on the other side to form a lateral reaction support for the main frame (10). A second level tester (47) is fixedly installed on the top of the first positioning plate (46). A second vertical tester (48) is fixedly installed on one side of the outer wall of the first positioning plate (46). A fifth electrical control box (49) is fixedly installed on the other side of the outer wall of the first positioning plate (46). The fifth electrical control box (49) is electrically connected to the second level tester (47) and the second vertical tester (48). An oil pump box (43) is fixedly installed on the top of the main frame (10). An oil pipe (42) is fixedly installed between the oil pump box (43) and the hydraulic cylinder (41).

6. The prefabricated building staircase installation and positioning device according to claim 1, characterized in that, A first fixed connecting plate (12) is fixedly installed on the outer wall of the other side of the main frame (10). The first fixed connecting plate (12) has four sets of first mounting holes (13) inside. The first mounting holes (13) are provided with first limiting bolts (14). An auxiliary bracket (11) is fixedly installed on the top of the main frame (10). A second fixed connecting plate (15) is fixedly installed on the outer wall of one side of the auxiliary bracket (11). The second fixed connecting plate (15) has six sets of second mounting holes (16) inside. The second mounting holes (16) are provided with second limiting bolts (17).

7. The prefabricated building staircase installation and positioning device according to claim 1, characterized in that, The main frame (10) is provided with a first prefabricated stair module (50) on the outside. Four sets of positioning sleeves (51) are fixedly installed at the connecting end of the first prefabricated stair module (50). Positioning rods (52) are fixedly installed inside the positioning sleeves (51). The exposed end of the positioning rods (52) is provided with an external thread section for installing locking parts.

8. The prefabricated building staircase installation and positioning device according to claim 1, characterized in that, The main frame (10) is provided with a second prefabricated stair module (53) on the outside. The second prefabricated stair module (53) has four sets of positioning holes (54) inside. The positioning rod (52) is inserted and snapped into the inside of the positioning hole (54).

9. The prefabricated building staircase installation and positioning device according to claim 8, characterized in that, The top of the second prefabricated staircase module (53) is pre-embedded with six sets of pre-embedded threaded sleeves (55). The pre-embedded threaded sleeves (55) are internally screwed with threaded rods (56). The top of the threaded rods (56) is fixedly installed with lifting rings (57). The lifting rings (57) are internally equipped with lifting straps, which are suspended on the surface of the hooks (37).

10. A construction method for a prefabricated building staircase installation and positioning device, characterized in that, The steps include the following: Step S1: Press one side of the outer wall of the first fixed connecting plate (12) and the second fixed connecting plate (15) against one side of the wall. Rotate the first limiting bolt (14) and the second limiting bolt (17) to fix the first fixed connecting plate (12) and the second fixed connecting plate (15) on the wall. Rotate the lifting ring (57) to screw the threaded rod (56) into the inside of the pre-embedded threaded sleeve (55). Pass the lifting belt through the six sets of lifting rings (57). Start the lifting chain control box (35), adjust the height of the lifting chain (36), hang the lifting belt on the hook (37), start the lifting chain control box (35) again, and lift the second prefabricated stair module (53) as a whole. Step S2: The command is transmitted to the three sets of first signal processing boxes (23) through the second electrical control box (28) and the three sets of first wires (27), and the first electrical control box (22) is started. The rack and pinion gears (21) on each movable plate (20) are driven to move along the tooth groove (19), and the movable plate (20) is driven to move horizontally on the outer wall of the first limit plate (18). The position of the three sets of movable plates (20) is adjusted. The hoisting site is monitored in real time through the real-time camera module (24). The horizontal reference value of the stair installation posture is collected through the first horizontal tester (25), and the vertical reference value of the stair installation posture is collected through the first vertical tester (26). Step S3: The electric threaded rod (34) is started by the third electrical control box (29), the fourth electrical control box (30) and a set of first wires (27), driving the electric threaded rod (34) to rotate, and the slider (32) is driven to slide inside the slide groove (31) by the threaded sleeve (33) with circumferential limit, adjusting the position of the hanging chain control box (35), and performing horizontal displacement of the second prefabricated stair module (53). The hydraulic cylinder (41) is commanded and controlled by the oil pipe (42) and the oil pump box (43), driving the hydraulic push rod (44) and the connecting rod (45) to move, pushing the first positioning plate (46) to stick tightly to the other side wall and form a lateral reaction force support. The second horizontal tester (47) is used to perform auxiliary horizontal value measurement, the second vertical tester (48) is used to perform auxiliary vertical value measurement, and the fifth electrical control box (49) supplies power to the second horizontal tester (47) and the second vertical tester (48). Step S4: Hoist the second prefabricated stair module (53) between the two sets of first prefabricated stair modules (50), align the positioning hole (54) with the positioning rod (52), and insert and snap the positioning rod (52) into the positioning hole (54) after being guided by the positioning sleeve (51). After checking the horizontal and vertical status of the second prefabricated stair module (53), install the locking part on the exposed thread section of the positioning rod (52), and then fill the gap between the positioning hole (54) and the positioning rod (52) with concrete and fill it tightly.

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