Plane unit modularization additionally-installed elevator shaft and assembling method of plane unit modularization additionally-installed elevator shaft

Abstract

The invention discloses a plane unit modularized additionally-installed elevator shaft and an assembling method thereof.The shaft comprises unit columns, unit middle beams, unit upper end beams and unit lower end beams, the unit columns are channel steel, and openings of the unit columns face the unit middle beams; the unit middle beams, the unit upper end beams, the unit lower end beams and the unit columns form plane units; the plane units define a section of modular shaft, the plane units are connected through connecting base plates, the upper section of modular shaft and the lower section of modular shaft are connected through a vertical connecting plate, and one section of the vertical connecting plate is inserted between unit columns of the modular shaft on the lower portion and connected with the unit columns through a bolt connecting pair. And the other section of the unit column inserted into the upper modular hoistway is connected with the unit column through a bolt connecting pair. Large-scale automatic production of factories can be achieved, the storage space is small, stacking and transportation are convenient, on-site rapid assembly is achieved, scaffolds do not need to be built, and rapid disassembly and recovery can be achieved after service is finished.

Description

Technical Field

[0001] The present invention relates to the technical field of modular assembly of assembled elevators, and in particular to a planar unit modular assembly of an elevator shaft and an assembly method thereof. Background Art

[0002] The modular method of installing elevators has the advantages of high degree of factory production, fast construction speed and little impact on residents' lives, and has been widely used and recognized.

[0003] In the past, modular elevator shafts were assembled from space module units. The space module units were assembled in the factory and usually included a space frame welded from steel beams and steel columns and a protective structure covering the outer periphery of the space frame. The steel beams and steel columns usually use rectangular steel pipes or H-shaped steels, and the protective structure usually uses tempered glass or aluminum plates. On the one hand, this space module unit is not conducive to large-scale automated factory production and storage; on the other hand, it causes inconvenience in transportation. When the installation height is high or the shaft span is large, multiple transportations are often required.

[0004] The existing Chinese invention patent application with application number CN201711236624.3 discloses an assembled structure elevator shaft and elevator, wherein the elevator shaft includes a plurality of sheet-type side frames and connecting parts for fixing each of the sheet-type side frames together, wherein the connecting parts include a connecting plate fixedly connected to two spliced ​​side columns at the same time or fixedly connected to a side column and a cross beam at the same time, and a bolt assembly for fixing the connecting plate and the side column; or the connecting part is a connecting flange or a docking positioning bolt fixed on the splicing ends of two spliced ​​side columns that are in a superior and inferior relationship.

[0005] The above scheme decomposes the elevator shaft into multiple side frames, which are connected by connecting plates and bolt assemblies and can be stacked layer by layer, greatly reducing the space and difficulty occupied by the original multi-section modular shaft during transportation, and greatly improving the efficiency of shaft loading; the above installation method is only applicable to the single-span and single-channel form of the shaft. For the installation of multi-span and multi-channel elevator shafts, the connection between the side frames cannot be achieved, and the applicability is poor. Summary of the invention

[0006] In view of the above problems, the present invention provides a planar unit modular installation of an elevator shaft and an assembly method thereof, which can realize large-scale automated production in the factory, require small storage space, facilitate stacking and transportation, and can be quickly assembled on site without the need to build scaffolding. After the service ends, it can be quickly disassembled and recycled.

[0007] In order to solve the above technical problems, the present invention adopts the following technical solutions: The present invention discloses a planar unit modular installation elevator hoistway, comprising a unit column, a unit middle beam, a unit upper end beam and a unit lower end beam, wherein the unit column is made of channel steel; The unit middle beam, the unit upper end beam and the unit lower end beam are all fixedly connected between the unit columns and form a plane unit with the unit columns. The unit upper end beam is arranged at the upper end of the unit column, and the unit lower end beam is arranged at the lower end of the unit column; the unit column opening faces the unit middle beam; A plurality of the planar units enclose a modular shaft, the planar units are connected by connecting pads, the connecting pads are arranged between the unit columns and connected to the two unit columns by bolt connection pairs; The upper and lower sections of the modular hoistway are connected by a vertical connecting plate. One section of the vertical connecting plate is inserted between the unit columns of the lower modular hoistway and connected to the unit columns by a bolt connection pair, and the other section is inserted between the unit columns of the upper modular hoistway and connected to the unit columns by a bolt connection pair.

[0008] The present invention provides a planar unit modular installation elevator shaft, further, the unit upper end beam and the unit lower end beam are made of channel steel, the unit upper end beam and the unit lower end beam are opened and arranged opposite to each other, the unit upper end beam is located at the upper end of the unit column and is fixed with a partition, and the unit lower end beam is located at the lower end of the unit column and is fixed with a partition; The partitions corresponding to the unit columns of the upper and lower sections of the modular hoistway are connected by bolt connection pairs.

[0009] The present invention provides a planar unit modular installation elevator shaft. Further, the unit center beam is made of channel steel, and its opening faces the inner side of the modular shaft. The connecting pad is arranged corresponding to the position of the unit center beam.

[0010] The present invention provides a modular installation of a planar unit in an elevator shaft. Further, two partitions are respectively provided at the upper and lower side plates corresponding to the unit center beam in the unit column, and the partitions are connected and fixed to the unit center beam.

[0011] The present invention provides a modular elevator shaft with planar units. Furthermore, a plurality of the planar units enclose a single-span multi-channel or multi-span multi-channel modular shaft.

[0012] The present invention provides a modular elevator shaft with planar units. Furthermore, horizontal plates are symmetrically fixed on opposite sides of the vertical connecting plate, and the two horizontal plates are respectively placed between the partitions of the upper and lower sections of the modular shaft. One of the horizontal plates is connected to the two partitions by a bolt connection pair, and the bottom surface of the other horizontal plate is fixed with a positioning cone, and the top surface is fixed with a wedge-shaped piece, and the top surface of the wedge-shaped piece is higher than the top surface of the vertical connecting plate; a plug hole for inserting the positioning cone is opened on the partition below the positioning cone, and a positioning hole for inserting the wedge-shaped piece is opened on the partition above the wedge-shaped piece.

[0013] The present invention provides a modular installation of a planar unit in an elevator shaft. Furthermore, the wedge is arranged at a right angle, and the upper part of the wedge is provided with inclined surfaces on both sides thereof so that the wedge is arranged to be smaller at the top and larger at the bottom, and the lower end of the inclined surface is higher than the top surface of the vertical connecting plate. The positioning hole is rectangular, and the wedge is inserted into the positioning hole, and its side is against the side wall of the positioning hole.

[0014] The present invention provides a modular installation of a planar unit in an elevator hoistway. Furthermore, the lower ends of both side edges of the wedge-shaped member are provided with inwardly retracted opening grooves.

[0015] The present invention provides an assembly method, comprising the following steps: Step 1: Connect the unit column, the unit middle beam, the unit upper end beam, and the unit lower end beam to form a plane unit; Step 2: After the planar unit is transported to the installation site, the planar unit is assembled into a modular shaft section through connecting pads, vertical connecting plates and bolt connection pairs; Step 3: Complete the hoisting of the lower modular hoistway, and keep the top vertical connecting plate extending out of the top surface of the lower modular hoistway as a positioning piece when hoisting the upper modular hoistway; Step 4: hoist the upper modular hoistway into place, and insert the vertical connection plate of the lower modular hoistway between the unit columns of the upper modular hoistway. The staff completes the installation of the bolt connection pair at the vertical connection plate in the modular hoistway, thus completing the installation of the upper modular hoistway; Step 5: Repeat step 4 to complete the installation of all modular hoistways.

[0016] The present invention provides an assembly method, comprising the following steps: Step 1: Connect the unit column, partition, unit middle beam, unit upper end beam, and unit lower end beam to form a plane unit; Step 2: After the planar unit is transported to the installation site, the planar unit is assembled into a modular shaft section through connecting pads, vertical connecting plates and bolt connection pairs; Step 3: Complete the hoisting of the lower modular hoistway, keep the vertical connecting plate at the top of the lower modular hoistway extending out of the top surface of the lower modular hoistway, and use the wedge as a positioning piece when hoisting the upper modular hoistway; Step 4: Hoist the upper modular hoistway. First, insert the wedge into the positioning hole. As the upper modular hoistway gradually descends, under the guidance of the wedge, the upper modular hoistway is precisely positioned, and the vertical connecting plate of the lower modular hoistway is inserted between the unit columns of the upper modular hoistway. The staff completes the installation of the bolt connection pair at the vertical connecting plate and the partition in the modular hoistway, and the installation of the upper modular hoistway is completed; Step 5: Repeat step 4 to complete the installation of all modular hoistways.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. This application uses channel steel as unit columns, unit middle beams, and upper and lower end beams of the unit, and by reasonably setting the opening direction of the channel steel, all high-strength bolts can be installed inside the well. This can avoid damage to the prefabricated enclosure structure outside the well on the one hand; on the other hand, the well structure can be used to provide a construction platform, eliminating the need for construction measures such as scaffolding; 2. The upper and lower modular shafts of the present application transmit pressure through the tightening of unit columns, and transmit tension and shear force through high-strength bolts at the vertical connection plates and end beam partitions; 3. This application uses plane units as basic building modules, which have a high level of standardization. Through the reasonable arrangement of plane units, various plane layout forms can be realized to meet the needs of various elevator installation scenarios; 4. The present application arranges positioning cones and wedges on both sides of the vertical connecting plate, respectively, and the special arrangement and structure of the wedges enable the modular well to automatically align during the falling process, making it easier for the vertical connecting plate to be inserted into the gap between the unit columns, making installation more convenient; 5. By arranging an open groove at the lower end of the wedge-shaped piece, it is convenient to fine-tune the upper modular hoistway in the horizontal plane after the upper modular hoistway is in place, so that the bolt holes are aligned, which is convenient for the installation of the bolts.

[0018] The present invention will be further described below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of a modular hoistway of the present invention; Figure 2 It is a structural schematic diagram of the plane unit of the present invention; Figure 3 It is a schematic diagram of the connection between the upper modular hoistway and the lower modular hoistway of the present invention; Figure 4 This is a schematic plan view of a single-span single-channel modular hoistway of the present invention; Figure 5 This is a schematic plan view of a single-span dual-channel modular hoistway of the present invention; Figure 6 This is a schematic plan view of a double-span, three-channel modular hoistway according to the present invention; Figure 7 This is a schematic plan view of a double-span four-channel modular hoistway of the present invention; Figure 8 A schematic diagram of the wedge structure is provided for the present invention; Fig. 9 This is a schematic diagram of the structure of the wedge-shaped member installed on the vertical connecting plate of the present invention; Fig.10It is a plan view of the wedge-shaped member installed on the vertical connecting plate of the present invention; Fig.11 This is a schematic diagram of a plug hole provided on the partition of the present invention.

[0020] Reference numerals: 1. Unit column; 2. Unit middle beam; 3. Unit upper end beam; 4. Unit lower end beam; 5. Connecting pad; 6. Vertical connecting plate; 7. Partition plate; 8. Horizontal plate; 9. Positioning cone; 10. Wedge; 11. Socket; 12. Positioning hole; 10.1. Inclined surface; 10.2. Opening groove. DETAILED DESCRIPTION

[0021] like Figure 1-Figure 11 As shown, the present invention discloses a planar unit modular installation elevator shaft and an assembly method thereof.

[0022] Embodiment 1: The elevator shaft includes a unit column 1, a unit middle beam 2, a unit upper end beam 3 and a unit lower end beam 4, which are all channel steels, and the unit middle beam 2, the unit upper end beam 3 and the unit lower end beam 4 are welded and fixed between the unit columns 1, and form a plane unit with the unit column 1, wherein the unit upper end beam 3 is arranged at the upper end of the unit column 1, the unit lower end beam 4 is arranged at the lower end of the unit column 1, and the unit middle beam 2 is arranged at intervals in the middle of the unit column 1. The opening of the unit column 1 is arranged toward the unit middle beam 2, the openings of the unit upper end beam 3 and the unit lower end beam 4 are arranged oppositely, and the opening of the unit middle beam 2 is arranged toward the inner side of the modular shaft.

[0023] A plurality of planar units enclose a section of modular shaft. The present application takes a modular shaft in a quadrilateral as an example for explanation. The planar units are connected by connecting pads 5. The connecting pads 5 are arranged between the unit columns 1 and are connected to the two unit columns 1 through a bolt connection pair. The number of connecting pads 5 is not limited and they can be arranged at intervals along the height direction of the unit columns 1. The connecting pads 5 are preferably arranged at the position of the unit center beam 2.

[0024] The upper and lower sections of the modular hoistway are connected by a vertical connecting plate 6. One section of the vertical connecting plate 6 is inserted between the unit columns 1 of the lower modular hoistway and fixedly connected to the unit columns 1 through a bolt connection pair, and the other section is inserted between the unit columns 1 of the upper modular hoistway and fixedly connected to the unit columns 1 through a bolt connection pair.

[0025] A partition plate 7 is provided at the connection between the unit upper end beam 3 and the unit column 1. The partition plate 7 is arranged at the top end of the unit column 1 and is fixedly connected to the unit upper end beam 3 and the unit column 1 respectively; a partition plate 7 is provided at the connection between the unit lower end beam 4 and the unit column 1. The partition plate 7 is arranged at the bottom end of the unit column 1 and is fixedly connected to the unit lower end beam 4 and the unit column 1 respectively. The partition plates 7 corresponding to the unit columns 1 of the upper and lower sections of the modular shaft are connected through a bolt connection pair.

[0026] Two partition plates 7 are respectively provided at the upper and lower side plates of the unit center beam 2 corresponding to the connection between the unit center beam 2 and the unit column 1 . The partition plates 7 are arranged in the unit column 1 and fixedly connected to the unit center beam 2 and the unit column 1 .

[0027] In addition, bolt connection holes are reserved on the unit column 1, the connection pad 5, the vertical connection plate 6, the partition plate 7 arranged at the unit upper end beam 3 and the unit lower end beam 4.

[0028] Furthermore, the elevator shaft of the present application can also be a modular shaft with a single span and multiple channels or multiple spans and multiple channels enclosed by multiple planar units, for example, it can be a single span and single channel, a single span and double channels, a double span and three channels, or a double span and four channels.

[0029] The assembly method includes the following steps: Step 1: Complete the processing of bolt holes on the unit column 1, partition 7, connecting pad 5, and vertical connecting plate 6 in the factory.

[0030] Step 2: Weld the unit column 1, the partition 7, the unit middle beam 2, the unit upper end beam 3, and the unit lower end beam 4 to form a plane unit.

[0031] Step 3: Complete installation of plan unit enclosure as required.

[0032] Step 4: Assemble several planar units into a modular shaft section on site through connecting pads 5, vertical connecting plates 6 and bolt connection pairs.

[0033] Step 5: Repeat step 4 to complete the assembly of all modular hoistways.

[0034] Step 6: Complete the hoisting of the lower modular shaft section, and keep its top vertical connecting plate 6 extending out of the top surface of the lower modular shaft as a positioning piece when hoisting the upper modular shaft.

[0035] Step 7: Lift the upper modular hoistway into place, and insert the vertical connecting plate 6 of the lower modular hoistway between the unit columns 1 of the upper modular hoistway. The staff completes the installation of the bolt connection pair at the vertical connecting plate 6 in the modular hoistway, thus completing the installation of the upper modular hoistway.

[0036] Step 8: Repeat step 7 to complete the installation of all modular hoistways.

[0037] Among them, steps 1 to 3 are completed in the factory, and steps 4 to 8 are completed on the project site.

[0038] Embodiment 2: The difference from Example 1 is that it is very difficult to insert the vertical connecting plate 6 into the gap between the unit columns 1 when the upper modular shaft falls, and the construction is very difficult. Based on this problem, the present application fixes and connects the horizontal plates 8 on the opposite sides of the vertical connecting plate 6, and the two horizontal plates 8 are symmetrically arranged about the vertical connecting plate 6. During installation, the two horizontal plates 8 are respectively placed between the partitions 7 of the upper and lower sections of the modular shaft, one of the horizontal plates 8 is connected to the two partitions 7 by a bolt connection pair, and the other horizontal plate 8 is fixedly installed with a positioning cone 9 on the bottom surface, and a wedge 10 is fixedly installed on the top surface. The partition 7 below the positioning cone 9 is provided with a socket 11 for inserting the positioning cone 9, and the partition 7 above the wedge 10 is provided with a positioning hole 12 for inserting the wedge 10.

[0039] The top surface of the wedge 10 is higher than the top surface of the vertical connecting plate 6. The wedge 10 is set at a right angle. The upper part of the wedge 10 is provided with inclined surfaces 10.1 on both sides of the upper part to make the wedge 10 smaller at the top and larger at the bottom. The lower end of the inclined surface 10.1 is higher than the top surface of the vertical connecting plate 6. The positioning hole 12 is rectangular. The wedge 10 is inserted into the positioning hole 12, and its side is against the side wall of the positioning hole 12. By setting the wedge 10, during installation, the shrinking part of the upper end of the wedge 10 is first inserted into the positioning hole 12. As the upper modular shaft gradually falls, under the guidance of the wedge 10, the upper modular shaft is gradually aligned in place, thereby facilitating the vertical connecting plate 6 to be inserted into the gap between the unit columns 1.

[0040] Furthermore, the inner corner of the wedge 10 is arranged toward the inner corner of the positioning hole 12, and the four wedges 10 on each modular hoistway are arranged corresponding to the four corners of the positioning hole 12 respectively. The positioning accuracy of the modular hoistway is improved by positioning the four wedges 10.

[0041] In addition, the lower ends of both sides of the wedge-shaped member 10 are provided with inwardly-retracted opening grooves 10.2, which facilitate fine-tuning of the upper modular shaft in the horizontal plane after the upper modular shaft is in place, so as to align the bolt holes and facilitate the installation of the bolts.

[0042] The assembly method includes the following steps: Step 1: Complete the processing of bolt holes on the unit column 1, partition 7, connecting pad 5, and vertical connecting plate 6 in the factory.

[0043] Step 2: Connect the unit column 1, the partition 7, the unit middle beam 2, the unit upper end beam 3, and the unit lower end beam 4 to form a plane unit; Step 3: Complete installation of plan unit enclosure as required.

[0044] Step 4: After the planar unit is transported to the installation site, the planar unit is assembled into a modular shaft section through the connecting pad 5, the vertical connecting plate 6 and the bolt connection pair; Step 5: Complete the hoisting of the lower modular hoistway, keep the vertical connecting plate 6 at the top of the lower modular hoistway extending out of the top surface of the lower modular hoistway, and use the wedge 10 as a positioning member when hoisting the upper modular hoistway; Step 6: hoist the upper modular hoistway, first insert the wedge 10 into the positioning hole 12, as the upper modular hoistway gradually descends, under the guidance of the wedge 10, the upper modular hoistway is precisely positioned, and the vertical connecting plate 6 of the lower modular hoistway is inserted between the unit columns 1 of the upper modular hoistway, and the staff completes the installation of the bolt connection pair at the vertical connecting plate 6 and the partition 7 in the modular hoistway, that is, the installation of the upper modular hoistway is completed; Step 7: Repeat step 6 to complete the installation of all modular hoistways.

[0045] The embodiments described above are merely descriptions of preferred implementation modes of the present invention and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A modular installation of elevator shafts in planar units, characterized in that: It comprises a unit column (1), a unit middle beam (2), a unit upper end beam (3) and a unit lower end beam (4), wherein the unit column (1) is made of channel steel; The unit middle beam (2), the unit upper end beam (3) and the unit lower end beam (4) are all fixedly connected between the unit columns (1) and form a plane unit with the unit columns (1); the unit upper end beam (3) is arranged at the upper end of the unit column (1), and the unit lower end beam (4) is arranged at the lower end of the unit column (1); the unit column (1) is opened toward the unit middle beam (2); A plurality of the planar units enclose a section of modular shaft, the planar units are connected by connecting pads (5), and the connecting pads (5) are arranged between the unit columns (1) and connected to the two unit columns (1) by a bolt connection pair; The upper and lower modular shafts are connected via a vertical connection plate (6); one section of the vertical connection plate (6) is inserted between the unit columns (1) of the lower modular shaft and connected to the unit columns (1) via a bolt connection pair, and the other section is inserted between the unit columns (1) of the upper modular shaft and connected to the unit columns (1) via a bolt connection pair.

2. The modular installation of elevator shaft by plane unit according to claim 1, characterized in that: The unit upper end beam (3) and the unit lower end beam (4) are made of channel steel, the unit upper end beam (3) and the unit lower end beam (4) are arranged with openings facing each other, the unit upper end beam (3) is located at the upper end of the unit column (1) and is fixedly provided with a partition plate (7), and the unit lower end beam (4) is located at the lower end of the unit column (1) and is fixedly provided with a partition plate (7); The partitions (7) corresponding to the unit columns (1) of the upper and lower sections of the modular hoistway are connected via a bolt connection pair.

3. The modular installation of a planar unit in an elevator shaft according to claim 1, characterized in that: The unit center beam (2) is made of channel steel, with its opening facing the inside of the modular shaft, and the connection pad (5) is arranged at a position corresponding to the unit center beam (2).

4. The modular installation of elevator shafts in planar units according to claim 3, characterized in that: Two partition plates (7) are respectively arranged at the upper and lower side plates corresponding to the unit center beam (2) in the unit column (1), and the partition plates (7) are connected and fixed to the unit center beam (2).

5. The modular installation of elevator shafts in planar units according to claim 1, characterized in that: A plurality of the planar units enclose a single-span multi-channel or multi-span multi-channel modular shaft.

6. The modular installation of elevator shafts in planar units according to claim 2, characterized in that: Horizontal plates (8) are symmetrically fixed on opposite sides of the vertical connecting plate (6), and the two horizontal plates (8) are respectively placed between the partitions (7) of the upper and lower sections of the modular well, one of the horizontal plates (8) is connected to the two partitions (7) by a bolt connection pair, and the bottom surface of the other horizontal plate (8) is fixed with a positioning cone (9), and the top surface is fixed with a wedge (10), and the top surface of the wedge (10) is higher than the top surface of the vertical connecting plate (6); the partition (7) below the positioning cone (9) is provided with an insertion hole (11) for inserting the positioning cone (9), and the partition (7) above the wedge (10) is provided with a positioning hole (12) for inserting the wedge (10).

7. The modular installation of elevator shafts in planar units according to claim 6, characterized in that: The wedge-shaped piece (10) is arranged at a right angle, and inclined surfaces (10.1) are respectively arranged on both sides of the upper part of the wedge-shaped piece (10) so that the wedge-shaped piece (10) is arranged to be smaller at the top and larger at the bottom, and the lower end of the inclined surface (10.1) is higher than the top surface of the vertical connecting plate (6), and the positioning hole (12) is rectangular. The wedge-shaped piece (10) is inserted into the positioning hole (12), and its side is against the side wall of the positioning hole (12).

8. The modular installation of elevator shafts in planar units according to claim 7, characterized in that: The lower ends of both side edges of the wedge-shaped piece (10) are provided with inwardly retracted opening grooves (10.2).

9. A method for assembling the planar unit modular installation of an elevator shaft according to any one of claims 1 to 5, characterized in that: The following steps are involved: Step 1: Connect the unit column (1), the unit middle beam (2), the unit upper end beam (3), and the unit lower end beam (4) to form a plane unit; Step 2: After the planar unit is transported to the installation site, the planar unit is assembled into a modular shaft section through a connecting pad (5), a vertical connecting plate (6) and a bolt connection pair; Step 3: Complete the hoisting of the lower modular shaft, and keep the top vertical connecting plate (6) extending out of the top surface of the lower modular shaft as a positioning piece when hoisting the upper modular shaft; Step 4: hoist the upper modular hoistway into place, and insert the vertical connection plate (6) of the lower modular hoistway between the unit columns (1) of the upper modular hoistway. The staff completes the installation of the bolt connection pair at the vertical connection plate (6) in the modular hoistway, thus completing the installation of the upper modular hoistway; Step 5: Repeat step 4 to complete the installation of all modular hoistways.

10. A method for assembling the planar unit modular installation of an elevator hoistway according to any one of claims 6 to 8, characterized in that: The following steps are involved: Step 1: Connect the unit column (1), the partition (7), the unit middle beam (2), the unit upper end beam (3), and the unit lower end beam (4) to form a plane unit; Step 2: After the planar unit is transported to the installation site, the planar unit is assembled into a modular shaft section through a connecting pad (5), a vertical connecting plate (6) and a bolt connection pair; Step 3: Complete the hoisting of the lower modular shaft, keep the vertical connecting plate (6) at the top of the lower modular shaft extending out of the top surface of the lower modular shaft, and use the wedge (10) as a positioning member when hoisting the upper modular shaft; Step 4: hoist the upper modular shaft, first insert the wedge (10) into the positioning hole (12), as the upper modular shaft gradually descends, under the guidance of the wedge (10), the upper modular shaft is precisely positioned, and the vertical connecting plate (6) of the lower modular shaft is inserted between the unit columns (1) of the upper modular shaft, and the staff completes the installation of the bolt connection pair at the vertical connecting plate (6) and the partition (7) in the modular shaft, thus completing the installation of the upper modular shaft; Step 5: Repeat step 4 to complete the installation of all modular hoistways.

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